Oral care device and electric toothbrush

Abstract

An oral care device (100), comprising a handle (10A), a core (20), a brush head (30), and an energy receiving module (40). A handle housing (10) of the handle (10A) is provided with an accommodating space (111), the handle housing (10) is provided with a protrusion (12) protruding in a direction away from a central axis of the handle housing (10), and the protrusion (12) is provided with an energy-transmitting region (13). The energy receiving module (40) is at least partially arranged in a mounting space (121) and is opposite the energy-transmitting region (13).

Description

Oral care devices and electric toothbrushes

[0001] Priority information

[0002] This application claims priority and benefits of patent applications with patent application numbers 2023230924770, 2023230968463, 2023230968868, 2023115269378, 2023230924427 and 2023230969663 filed with the State Intellectual Property Office of China on November 15, 2023, and priority and benefits of patent application number 2023216972544 filed with the State Intellectual Property Office of China on June 29, 2023, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of oral cleaning, and more specifically, to an oral care device and an electric toothbrush. Background Art

[0004] In the related art, oral care devices equipped with energy receiving modules are available on the market, such as electric toothbrushes. These modules allow users to more comprehensively monitor oral hygiene while using the devices. However, due to the shape and size limitations of the devices, the energy receiving modules must be located within the handle of the device.

[0005] Summary of the Invention

[0006] The oral care device of the first aspect of the present application includes a handle, a movement, a care piece and an energy receiving module. The handle includes a handle shell, the handle shell is provided with a storage space, the handle shell is provided with a protrusion protruding in a direction away from the central axis of the handle shell compared to the outer peripheral side, the protrusion forms an installation space, the protrusion has a side plate, and the side plate is provided with an energy transmission area. The movement is installed in the storage space and at least partially extends out of the handle shell. The care piece is installed on the part of the movement extending from the handle shell, and the care piece is arranged opposite to the side plate. The energy receiving module is at least partially arranged in the installation space and opposite to the energy transmission area, and the energy receiving module is used to receive at least part of the energy reflected by the care piece and / or human body features outside the oral cavity.

[0007] The oral care device of the second aspect of the present application includes a handle shell, a care piece and an energy receiving module. The handle shell includes an end shell portion and a peripheral shell portion connected to each other, and the peripheral shell portion is provided at the first end of the end shell portion, and the end shell portion and the peripheral shell portion form a storage space. The care piece is provided at the second end of the end shell portion away from the peripheral shell portion and is located outside the storage space. The energy receiving module is provided in the storage space and is located on the side where the end shell portion is located, and the energy receiving module faces the end shell portion so that at least part of the structure of the care piece is located within the receiving range of the energy receiving module. The energy receiving module is used to receive at least part of the energy reflected by the care piece and / or human body features outside the oral cavity.

[0008] The oral care device of the third aspect of the present application includes a handle shell, a movement, a button, a brush head and an energy receiving module. The handle shell includes a first side and a second side opposite to each other. The movement is arranged in the handle shell and at least part of the structure of the output shaft of the movement extends from the handle shell. The button is arranged on the first side of the handle shell. The brush head is mounted on the output shaft of the movement and is located outside the handle shell. The energy receiving module is arranged in the handle shell and is located on the second side of the handle shell. The energy receiving module faces the side where the brush head is located so that at least part of the structure of the brush head is located within the receiving range of the energy receiving module; the energy receiving module is used to receive at least part of the energy reflected by the brush head and / or human body features outside the oral cavity.

[0009] The oral care device of the fourth aspect of the present application includes a handle, a movement, a care piece and an energy receiving module. The handle includes a handle shell, and the handle shell is provided with a storage space. The movement is installed in the storage space and at least partially extends out of the handle shell. The care piece includes a connected brush rod and a care portion, the brush rod is installed on the portion of the movement extending from the handle shell, and the care portion is provided on the brush rod. The energy receiving module is provided on the movement or the handle shell, and the energy receiving module is used to receive at least part of the energy reflected by the care portion of the care piece and / or human features outside the oral cavity, and the energy received by the energy receiving module does not include the energy reflected by the handle.

[0010] The oral care device of the fifth aspect of the present application includes a handle, a movement, a care piece and an energy receiving module. The handle includes a handle shell and a cover plate, the handle shell is provided with a through hole, and the cover plate covers the through hole. The movement is installed in the handle shell and partially extends out of the handle shell. The care piece is installed on the part of the movement that extends from the handle shell. The energy receiving module is arranged in the handle shell through the through hole and is electrically connected to the movement. The energy receiving module corresponds to the cover plate, and the energy receiving module is used to receive energy reflected back at least partially by the care piece and / or human features outside the oral cavity.

[0011] The electric toothbrush of the sixth aspect of the present application includes a brush handle assembly, a brush head and a camera. The brush handle assembly includes a brush handle and a movement. The brush handle is formed with a mounting cavity and a light inlet connected to the mounting cavity. The movement includes an output shaft. The movement is installed in the mounting cavity and the output shaft extends out of the mounting cavity. The light inlet is formed on the outer surface of the brush handle; the brush head is connected to one end of the output shaft extending out of the mounting cavity; and the camera is connected to the movement or the brush handle and is arranged corresponding to the light inlet. The light inlet is sealed, or the connection between the light inlet and the mounting cavity is sealed to seal the mounting cavity.

[0012] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0014] FIG1 is a perspective schematic diagram of an oral care device according to some embodiments of the present application;

[0015] FIG2 is a perspective schematic diagram of the oral care device shown in FIG1 from another perspective;

[0016] FIG3 is a cross-sectional view and a partially enlarged view of the oral care device shown in FIG1 ;

[0017] FIG4 is a cross-sectional view and a partially enlarged view of oral care devices according to other embodiments of the present application.

[0018] FIG5 is a perspective schematic diagram of an oral care device according to certain embodiments of the present application;

[0019] FIG6 is an exploded schematic diagram of a portion of the structure of an oral care device according to certain embodiments of the present application;

[0020] FIG7 is an exploded schematic diagram of a portion of the structure of an oral care device according to certain embodiments of the present application;

[0021] FIG8 is a schematic cross-sectional view of a partial structure of an oral care device according to certain embodiments of the present application;

[0022] FIG9 is a schematic cross-sectional view of a partial structure of an oral care device according to certain embodiments of the present application;

[0023] FIG10 is a cross-sectional schematic diagram of an oral care device according to some embodiments of the present application;

[0024] FIG11 is a schematic diagram of the location of the energy transmission zone of the oral care device according to certain embodiments of the present application;

[0025] FIG12 is a cross-sectional and partially enlarged schematic diagram of an oral care device according to certain embodiments of the present application;

[0026] FIG13 is a plan view of an oral care device according to some other embodiments of the present invention;

[0027] FIG14 is a cross-sectional and partially enlarged schematic diagram of the oral care device in FIG13;

[0028] FIG15 is a cross-sectional and partially enlarged schematic diagram of the oral care device shown in FIG14;

[0029] FIG16 is a cross-sectional schematic diagram of an oral care device according to some other embodiments of the present application;

[0030] FIG17 is a schematic perspective view of the oral care device in FIG16;

[0031] FIG18 is a schematic cross-sectional view of an oral care device according to certain embodiments of the present application.

[0032] FIG19 is a perspective schematic diagram of an electric toothbrush according to certain embodiments of the present application;

[0033] FIG20 is a schematic cross-sectional view of the electric toothbrush of FIG19 taken along line II-II;

[0034] FIG21 is an enlarged schematic diagram of the electric toothbrush in FIG20 at position A;

[0035] FIG22 is an exploded schematic diagram of the electric toothbrush of FIG19;

[0036] FIG23 is an exploded schematic diagram of a portion of the structure of the electric toothbrush in FIG19.

[0037] FIG24 is a schematic structural diagram of an electric toothbrush in one embodiment of the present application;

[0038] FIG25 is a schematic diagram of the rear view of an electric toothbrush in one embodiment of the present application;

[0039] FIG26 is a schematic cross-sectional view of the AA section in FIG25;

[0040] FIG27 is an enlarged schematic diagram of point B in FIG26;

[0041] FIG28 is a schematic structural diagram of an electric toothbrush in yet another embodiment of the present application;

[0042] FIG29 is an enlarged schematic diagram of point C in FIG28;

[0043] FIG30 is a front view of the structure of an electric toothbrush in another embodiment of the present application;

[0044] FIG31 is a schematic cross-sectional view of the DD section in FIG30 ;

[0045] FIG32 is an enlarged schematic diagram of point E in FIG31;

[0046] FIG33 is a schematic structural diagram of a brush handle assembly in one embodiment of the present application;

[0047] FIG34 is a schematic structural diagram of an electric toothbrush in yet another embodiment of the present application;

[0048] FIG35 is a schematic diagram of the shooting range of an electric toothbrush in one embodiment of the present application;

[0049] FIG36 is a schematic structural diagram of a brush head in one embodiment of the present application;

[0050] FIG37 is a schematic diagram of the light path toward the brush head of an electric toothbrush in one embodiment of the present application;

[0051] FIG38 is a schematic diagram of the field of view of a camera of an electric toothbrush in one embodiment of the present application;

[0052] FIG39 is a schematic diagram of different light path directions of an electric toothbrush in yet another embodiment of the present application;

[0053] Figure 40 is a schematic diagram of different light path directions of an electric toothbrush in another embodiment of the present application. DETAILED DESCRIPTION

[0054] Taking the energy receiving module as a camera and the oral care device as an electric toothbrush as an example, the distance between the camera and the central axis of the electric toothbrush is relatively short, resulting in the brush rod occupying a larger space within the energy receiving range of the energy receiving module. It is even possible that the head part of the brush head, such as the bristles, is located outside the energy receiving range, which makes it difficult for the energy receiving module to obtain more effective information.

[0055] Referring to Figures 1 to 3 , the oral care device 100 according to the first aspect of the present application includes a handle assembly, a movement 20, a brush head 30, and an energy receiving module 40. The handle 10A includes a handle shell 10, which has a receiving space 111. The handle shell 10 is provided with a protrusion 12 that protrudes away from the central axis X1 of the handle shell 10 relative to the outer periphery. The protrusion 12 defines a mounting space 121 and has a side panel 123. The side panel 123 is provided with an energy transmission area 13. The movement 20 is mounted within the receiving space 111 and at least partially extends outside the handle shell 10. The brush head 30 is mounted to the portion of the movement 20 that extends from the handle shell 10, and is disposed opposite the side panel 123. The energy receiving module 40 is at least partially disposed within the mounting space 121 and opposite the energy transmission area 13. The energy receiving module 40 is configured to receive at least a portion of the energy reflected by the brush head 30 and / or human features outside the oral cavity.

[0056] The oral care device 100 is a device that can clean the oral cavity or detect human features outside the oral cavity. The types of oral care devices 100 include but are not limited to electric toothbrushes, oral scanning devices (hereinafter referred to as "oral scanners"), endoscopes or water flossers. When the oral care device 100 is an electric toothbrush or water flosser, the oral care device 100 can clean and detect the oral cavity. The oral care device 100 can use the energy receiving module 40 to locate the tooth area being brushed, so as to facilitate the detection of the tooth area being brushed; or, the oral care device 100 can also use the energy receiving module 40 to obtain an image of the tooth area being brushed, so that the user can view the specific condition of the teeth, thereby completing the detection of the tooth area. When the oral care device 100 is a mouth scanner or an endoscope, the oral care device 100 can detect the oral cavity. The oral care device 100 can use the energy receiving module 40 to locate the tooth area being brushed so as to detect the tooth area being brushed; or, the oral care device 100 can also use the energy receiving module 40 to obtain an image of the tooth area being brushed so that the user can view the specific condition of the teeth and thus complete the detection of the tooth area.

[0057] The handle 10A is designed to be gripped by the user. Functional modules such as a control area 115 and a display 80 may be provided on the surface of the handle 10A to facilitate user operation and use of the various functions of the oral care device 100. The handle 10A may be cylindrical, providing a comfortable grip. The handle 10A may also include an anti-slip feature to prevent the oral care device 100 from slipping during use.

[0058] The handle housing 10 is a structure with a cavity (i.e., a receiving space 111) for accommodating other components. The materials of the handle housing 10 include, but are not limited to, metal, plastic, silicone, or rubber. The movement 20 is disposed within the receiving space 111, ensuring that the handle housing 100 maintains the aesthetics of the oral care device 100 while preventing external impurities, such as dust, from falling into the interior of the oral care device 100 and affecting its cleanliness. The cross-sectional outer contour of the handle housing 100 may include, but is not limited to, a true circle, an ellipse, a triangle, a quadrilateral, or a pentagon.

[0059] The care component is generally a structure that is detachably mounted to the portion of the movement 20 that extends from the handle housing 10. If the oral care device 100 is an electric toothbrush, the care component may be the brush head 30. If the oral care device 100 is an oral scanner, the care component may be the housing protecting the internal energy receiving module 40 and the light-transmitting lens. If the oral care device 100 is an oral irrigator, the care component may be the nozzle used to spray liquid or foam.

[0060] Taking an electric toothbrush as an example, the brush head 30 is generally detachably mounted to the portion of the movement 20 that extends from the handle housing 10, allowing the user to replace the brush head 30. The brush head 30 includes bristles 33, which the user uses to brush their teeth. The bristles 33 can be made of, but are not limited to, nylon, rubber, or pig bristles. The bristles 33 have good toughness and elasticity, effectively cleaning teeth and spaces between teeth.

[0061] The movement 20 is the structure that drives the toothbrush. Taking an electric toothbrush as an example, the movement 20 is the structure that drives the brush head 30 to vibrate. When the user activates the oral care device 100, the movement 20 begins to vibrate, driving the brush head 30 through its connection to the brush head 30. The vibrating bristles 33 of the brush head 30 clean the teeth. At this point, the user typically needs to obtain information about the brush head 30 and nearby extraoral features to locate the area being brushed.

[0062] The energy receiving module 40 is used to receive at least a portion of the energy reflected by the care components and / or human features outside the oral cavity. The oral care device 100 can generate data that can be viewed by the user or analyzed by the oral care device 100 based on the energy received by the energy receiving module 40. In some embodiments, the energy receiving module 40 can only receive at least a portion of the energy reflected by human features outside the oral cavity. In this case, the energy receiving range of the energy receiving module 40 is offset from the brush head 30, and the electric toothbrush cannot receive the partial energy reflected by the brush head 30. In other embodiments, the energy receiving module 40 can receive at least a portion of the energy reflected by the brush head 30 and human features outside the oral cavity. In this case, the brush head 30 is within the receiving range of the energy receiving module.

[0063] The energy receiving module 40 can receive energy types including, but not limited to, acoustic signals, optical signals, electrical signals, and thermal radiation. The energy receiving module 40 includes, but is not limited to, an imaging module, a structured light sensor, or a time-of-flight (TOF) laser ranging sensor. The imaging module can be a visible light imaging module, an ultrasonic imaging module, an infrared thermal imaging module, or the like. The imaging module can directly acquire a two-dimensional image based on the sound waves and light reflected by an object. The imaging module faces the brush head 30 and can acquire two-dimensional image information of the brush head 30 and two-dimensional image information of the face and / or teeth near the brush head 30 through a camera. The imaging module can determine the tooth area that the brush head 30 is in contact with based on the relative position between the brush head 30 and the face and / or teeth, thereby more accurately locating the tooth area. When the energy receiving module 40 is a structured light sensor or a TOF laser ranging sensor, the oral care device 100 uses the energy receiving module 40 to acquire a three-dimensional image, so that the oral care device 100 can analyze data based on the three-dimensional image and facilitate the user to view the three-dimensional image to obtain information about the oral cavity.

[0064] In certain embodiments, the type of energy-transmitting area 13 is determined by the type of energy-receiving module 40. For example, when the energy-receiving module 40 is an imaging module and the emitted energy is a light signal, the energy-transmitting area 13 is a light-transmitting area, and the light-transmitting area 13 can be a solid, light-transmitting area. That is, the light-transmitting area 13 can be made of a light-transmitting material such as glass or resin, which can ensure that energy reflected by the brush head 30 or human features outside the oral cavity passes through the light-transmitting area 13 and is received by the energy-receiving module 40, thereby reducing energy loss in the propagation path. For another example, when the energy-receiving module 40 is an ultrasonic imaging module, the energy-transmitting area 13 can be a through-hole.

[0065] In certain embodiments, the oral care device 100 further includes an energy emitting module, which is used to emit energy, and an energy receiving module 40 is used to receive at least part of the energy emitted by the energy emitting module and reflected by the care piece and / or human features outside the oral cavity. The energy emitting module can emit energy outward, and the energy form includes but is not limited to sound, light, etc. The energy emitting module can be opposite to the care piece so that at least part of the energy emitted by the energy emitting module can be reflected by the care piece or the human features outside the oral cavity. For example, the energy receiving module 40 is an imaging module. When shooting is required, the energy emitting module 40 can emit energy toward the care piece or the human features outside the oral cavity, such as emitting visible light, and the energy receiving module 40 can capture an image of the care piece or an image of the human features outside the oral cavity based on the visible light.

[0066] The oral care device 100 may be provided with a protrusion 12 on the handle shell 10 that protrudes in a direction away from the central axis of the handle shell 10 relative to the outer peripheral side. The protrusion 12 forms an installation space 121. The protrusion 12 has a side plate 123, and the side plate 123 is provided with an energy transmission area 13. In a direction perpendicular to the central axis of the handle shell 10, the distance between the highest point of the protrusion 12 and the central axis of the handle shell 10 is greater than the distance between the portion of the outer peripheral side of the handle shell 10 that contacts the protrusion 12 and the central axis of the handle shell 10. The central axis of the handle shell 10 refers to the axis in the longitudinal direction of the handle shell 10. In this way, the installation space 121 has sufficient space in a direction away from the central axis of the handle shell 10 to set the energy receiving module 40. The energy receiving module 40 is at least partially disposed in the installation space 121. For example, the entire energy receiving module 40 is installed in the installation space 121, or part of the energy receiving module 40 is installed in the installation space 121, and the other part is installed in the accommodating space 111. The energy receiving module 40 can receive part of the energy that passes through the energy-transmitting area 13 and is reflected by the brush head 30 or human body features outside the oral cavity.

[0067] The energy receiving module 40 can be installed in the mounting space 121 of the protrusion 12, which protrudes away from the central axis of the handle housing 10. This allows the energy receiving module 40 to protrude away from the central axis of the handle housing 10 relative to the outer circumference of the handle housing 10. This allows the energy receiving module 40 to receive energy from a wider range of locations, making it less susceptible to influence from areas closer to the energy receiving module 40. The energy receiving module 40 can then smoothly receive energy from areas farther away, ensuring that it receives more information from the oral cavity. Taking an electric toothbrush as an example, the energy receiving module 40 protrudes in a direction away from the central axis of the handle shell 10 compared to the outer peripheral side of the handle shell 10, which can make the energy receiving range closer to the bristles 33 and the area near the bristles 33, and reduce the space occupied by the handle shell 10 and the brush rod 31 within the energy receiving range, so that the energy receiving module 40 is less affected by the area closer to the energy receiving module 40. The energy receiving module 40 can smoothly obtain energy from areas farther away from the energy receiving module 40, such as the bristles 33 and the area where the bristles 33 are located, thereby ensuring that the energy receiving module 40 can receive more effective information.

[0068] In some embodiments, the protrusion 12 is detachably or non-detachably mounted on the handle housing 10. In this application, all "non-detachable mounting methods" include, but are not limited to, welding, gluing, hot melt, or interference fit to enhance mounting stability. In this application, all "detachable mounting methods" include, but are not limited to, threaded, snap-fit, bolted, or hinged connections to facilitate maintenance or replacement.

[0069] The handle shell 10 of the oral care device 100 of the embodiment of the present application is provided with a protrusion 12 that protrudes in a direction away from the central axis of the handle shell 10 relative to the outer peripheral side. The energy receiving module 40 is disposed in the installation space 121 formed by the protrusion 12, and the energy receiving module 40 is opposite to the energy transmission area 13 in the side wall of the protrusion 12 to receive at least part of the energy reflected by the brush head 30 and / or human body features outside the oral cavity. In this way, in a direction away from the central axis of the handle shell 10, the energy receiving module 40 disposed in the installation space 121 can be protruded relative to the handle shell 10, so that the energy receiving range of the energy receiving module 40 covers a farther area and reduces the obstruction of the handle shell 10 to the energy reception, thereby ensuring that the energy receiving module 40 can obtain more effective information.

[0070] Please refer to Figure 3. In some embodiments, the care part includes a connected brush rod 31 and a care part, the care part includes a plate body and a care sub-part, the brush rod 31 is installed on the protruding part of the handle shell 10 of the movement 20, the plate body is connected to the brush rod 31, the care sub-part is arranged on the plate body, and the energy receiving range of the energy receiving module 40 covers at least the free end of the care sub-part and / or the side of the plate body facing away from the care sub-part.

[0071] Specifically, taking the oral care device 100 as an electric toothbrush as an example, the plate body is the brush plate 35, the care sub-part is the bristles 33, the care part includes the brush plate 35 and the bristles 33, the brush plate 35 is connected to the brush rod 31, and the bristles 33 are arranged on the brush plate 35.

[0072] When the movement 20 begins vibrating, the portion of the movement 20 extending from the handle housing 10 drives the brush shaft 31 to vibrate, which in turn drives the brush plate 35 and bristles 33 to vibrate. The user also needs to use the energy receiving module 40 to determine the tooth area being brushed. The oral care device 100 determines the tooth area by determining the relative position of the brush head 30 and human features outside the oral cavity. The position of the brush plate 35 or bristles 33 reflects the location of the teeth being brushed.

[0073] Therefore, the energy receiving range of the energy receiving module 40 must at least cover the free end of the bristles 33, or at least cover the side of the brush plate 35 facing away from the bristles 33, or at least cover the free end of the bristles 33 and the side of the brush plate 35 facing away from the bristles 33, to ensure that the energy receiving module 40 can receive information from both sides of the bristles 33, such as information on human body characteristics outside the mouth, so that the oral care device 100 can accurately locate the teeth being brushed according to the energy receiving module 40.

[0074] At the same time, when the energy receiving range covers the free ends of the bristles 33, the energy receiving module 40 can also receive energy reflected by the teeth in contact with the free ends of the bristles 33, so that the oral care device 100 can obtain information about the teeth in contact with the free ends of the bristles 33.

[0075] The brush rod 31 and the bristles 33 are integrally formed. In other examples, the brush rod 31 and the bristles 33 are separately formed. The brush rod 31 and the bristles 33 are detachably or non-detachably connected.

[0076] Referring to Figures 2 and 3 , in certain embodiments, the relative positions of the central axis X2 of the energy receiving module 40 and the central axis X1 of the movement 20 can be varied, provided that the energy receiving module 40 can receive at least a portion of the energy reflected from the treated area or features of the human body outside the oral cavity. The central axis X2 of the energy receiving module 40 is the longitudinal axis of the energy receiving module 40, while the central axis X1 of the movement 20 is the longitudinal axis of the movement 20.

[0077] Please refer to Figure 3. In one embodiment, the central axis X2 of the energy receiving module 40 is parallel to the central axis X1 of the movement 20, so as to ensure that the energy receiving module 40 can receive at least part of the energy reflected by the brush head 30 or human body features outside the oral cavity, while reducing the space occupied by the non-energy-transmissive area 14 in the handle shell 10 in the energy receiving module 40, thereby reducing the impact of the non-energy-transmissive area 14 in the handle shell 10 on the operation of the energy receiving module 40.

[0078] In another embodiment, the central axis X2 of the energy receiving module 40 intersects the central axis X1 of the movement 20 at the brush head 30, so that the central axis X2 of the energy receiving module 40 extends toward the brush head 30 to avoid the energy receiving range including too much of the side of the brush head 30 away from the combing bristles, resulting in the energy receiving module 40 having difficulty obtaining sufficient information on the bristles 33 or human body features outside the oral cavity, thereby ensuring that the energy receiving module 40 can receive at least part of the energy reflected by the brush head 30 or the human body features outside the oral cavity.

[0079] Please refer to Figure 4. In another embodiment, the central axis X2 of the energy receiving module 40 intersects the central axis X1 of the movement 20 at the handle shell 10, and the angle between the central axis X2 of the energy receiving module 40 and the central axis X1 of the movement 20 is less than 15°, for example, the angle is 8.2°, 9.9°, 10.2°, 11.6°, 12.8°, 13.4°, 14.5° or 14.7°, so as to ensure that the energy receiving module 40 can receive at least part of the energy reflected by the brush head 30 or human body features outside the oral cavity, while reducing the space occupied by the non-energy-transmissive area 14 in the handle shell 10 in the energy receiving module 40, thereby reducing the influence of the non-energy-transmissive area 14 in the handle shell 10 on the operation of the energy receiving module 40. It is understood that if the angle between the central axis X2 and the central axis X1 is too large, it is easy for the energy receiving module 40 to receive the energy reflected by the bristles 33 or the area near the bristles 33, making it difficult for the energy receiving module 40 to obtain effective image information, position information, distance information, etc. Therefore, the oral care device 100 can also use angle restrictions to ensure that the angle between the central axis X2 and the central axis X1 is not too large, thereby ensuring that the energy receiving module 40 can receive at least part of the energy reflected by the brush head 30 and / or human features outside the oral cavity.

[0080] Please refer to Figure 3. In some embodiments, the central axis X2 of the energy receiving module 40 is inclined compared to the central axis of the brush rod 31, and intersects with the central axis of the brush rod 31 between the middle of the brush rod 31 and the free end of the care piece.

[0081] Specifically, the central axis of the brush rod 31 refers to the axis in the length direction of the brush rod 31. When the central axis X2 of the energy receiving module 40 is tilted relative to the central axis of the brush rod 31, if the intersection of the central axis X2 and the central axis of the brush rod 31 is between the middle of the brush rod 31 and the side of the brush rod 31 close to the handle shell 10, the energy receiving range will be such that the middle of the brush rod 31 and the side of the brush rod 31 close to the handle shell 10 occupy more space, while the bristles 33 and the brush plate 35 occupy less space. This may result in the energy receiving module 40 only being able to obtain energy reflected by part of the bristles 33 and part of the brush plate 35, or even being unable to obtain energy reflected by the bristles 33 and the brush plate 35, thereby making it difficult for the oral care device 100 to obtain sufficient information about the free ends of the bristles 33 and the side of the brush plate 35 facing away from the bristles 33.

[0082] Therefore, when the central axis X2 of the energy receiving module 40 is tilted compared to the central axis of the brush rod 31, the central axis X2 of the energy receiving module 40 intersects with the central axis of the brush rod 31 between the middle of the brush rod 31 and the free end of the brush head 30, which can reduce the space occupied by the brush rod 31 within the energy receiving range, ensuring that the energy receiving range can cover more areas of the bristles 33 and the brush plate 35, thereby reducing the impact of the brush rod 31 on the energy receiving module 40, and ensuring that the energy receiving module 40 obtains sufficient information about the free ends of the bristles 33 and the side of the brush plate 35 away from the bristles 33.

[0083] Please refer to FIG. 3 . In a direction perpendicular to and away from the central axis of the handle housing 10 , the height of the protrusion 12 relative to the outer peripheral side of the handle housing 10 ranges from 1 mm to 5 mm.

[0084] Specifically, the energy receiving module 40 itself has a certain size, and the energy receiving module 40 is arranged in the installation space 121, so that the handle shell 10 may block the energy reflected by the brush head 30 or the human body features outside the oral cavity, making the energy reflected by the brush head 30 or the human body features outside the oral cavity difficult to be received by the energy receiving module 40.

[0085] It can be understood that, in a direction perpendicular to and away from the central axis of the handle shell 10, once the distance between the energy receiving module 40 and the outer periphery of the handle shell 10 reaches a certain threshold, the range of the energy receiving module 40 obscured by the handle shell 10 will be reduced, and a larger portion of the energy reflected by the brush head 30 or human features outside the oral cavity, which propagates toward the energy receiving module 40, will not be reflected by the handle shell 10, allowing the energy receiving module 40 to receive sufficient energy reflected by the brush head 30 or human features outside the oral cavity. Therefore, if the distance between the energy receiving module 40 and the outer periphery of the handle shell 10 in a direction perpendicular to and away from the central axis of the handle shell 10 is too small, it will be difficult for the energy receiving module 40 to receive sufficient energy reflected by the brush head 30 or human features outside the oral cavity.

[0086] If the distance between the energy receiving module 40 and the outer peripheral side of the handle shell 10 in the direction perpendicular to and away from the central axis of the handle shell 10 is too large, and the protrusion 12 protrudes too much relative to the outer peripheral side of the handle shell 10, the protrusion 12 may be more easily damaged when the oral care device 100 falls. At the same time, the overly protruding protrusion 12 will also affect the aesthetics of the oral care device 100.

[0087] Therefore, in the direction perpendicular to and away from the central axis of the handle shell 10, the height of the protrusion 12 relative to the outer peripheral side of the handle shell 10 (D1 in Figure 3) is in the range of [1mm, 5mm], for example, the height is 1mm, 1.5mm, 1.7mm, 2.3mm, 2.9mm, 3.5mm, 4.1mm, 4.8mm or 5mm. By limiting the height of the protrusion 12 relative to the outer peripheral side of the handle shell 10 in the direction perpendicular to and away from the central axis of the handle shell 10, on the one hand, the safety and aesthetics of the protrusion 12 are ensured, and on the other hand, the energy receiving module 40 can obtain sufficient energy reflected by the brush head 30 or human body features outside the oral cavity.

[0088] Please refer to FIG. 3 . In some embodiments, along the direction of the central axis X2 of the energy receiving module 40 , the projection of the side panel 123 covers the projection of the energy receiving module 40 .

[0089] Specifically, if the partial projection of the handle shell 10 overlaps with the partial projection of the energy receiving module 40 along the direction of the central axis X2 of the energy receiving module 40, the handle shell 10 will occupy a larger area within the energy receiving range, and a larger amount of energy reflected by the brush head 30 or human features outside the oral cavity will be blocked by the handle shell 10, making it difficult for the energy receiving module 40 to obtain sufficient energy reflected by the brush head 30 or human features outside the oral cavity. The side panel 123 is provided with an energy-transmitting area 13 for energy to pass through. Therefore, the oral care device 100 can reduce the area occupied by the handle shell 10 within the energy receiving range by making the projection of the side panel 123 (L1 in FIG. 3 ) cover the projection of the energy receiving module 40 (L2 in FIG. 3 ) along the direction of the central axis X2 of the energy receiving module 40, thereby reducing the influence of the handle shell 10 on the energy reception of the energy receiving module 40, thereby ensuring that the energy receiving module 40 can obtain sufficient energy reflected by the brush head 30 or human features outside the oral cavity.

[0090] Referring to FIG. 3 , in some embodiments, along the direction of the central axis X2 of the energy receiving module 40 , the distance between the outer contour of the projection of the side plate 123 and the outer contour of the projection of the energy receiving module 40 is greater than or equal to 0.5 mm.

[0091] Specifically, if the distance between the projected outer contour of the side plate 123 and the projected outer contour of the energy receiving module 40 is too close along the direction of the central axis X2 of the energy receiving module 40, the side plate 123 and the energy receiving module 40 may easily touch or even rub against each other, thereby damaging the energy receiving module 40. Furthermore, if the distance between the projected outer contour of the side plate 123 and the projected outer contour of the energy receiving module 40 is too close along the direction of the central axis X2 of the energy receiving module 40, the handle housing 10 may affect the energy reception of the energy receiving module 40.

[0092] Therefore, along the direction of the central axis X2 of the energy receiving module 40, the distance between the outer contour of the projection of the side panel 123 and the outer contour of the projection of the energy receiving module 40 is greater than or equal to 0.5 mm, for example, the distance is 0.5 mm, 0.55 mm, 0.57 mm, 0.62 mm, 0.78 mm, 0.83 mm, 0.92 mm, 0.97 mm or 1.05 mm. On the one hand, it ensures that along the direction of the central axis X2 of the energy receiving module 40, the projection of the side panel 123 covers the projection of the energy receiving module 40, thereby reducing the area occupied by the handle shell 10 in the energy receiving range, thereby reducing the influence of the handle shell 10 on energy reception. On the other hand, it ensures that the distance between the outer contour of the projection of the side panel 123 and the outer contour of the projection of the energy receiving module 40 will not be too close, thereby ensuring that the side panel 123 will not damage the energy receiving module 40.

[0093] Please refer to FIG. 1 and FIG. 2 . In certain embodiments, the handle housing 10 has an end surface 113 facing the care piece, and the side panel 123 extends to the end surface 113 .

[0094] If the side panel 123 and the end surface 113 were two separate structures, the end surface 113 might block energy reflected by the brush head 30 or features of the human body outside the oral cavity from being reflected into the side panel 123. Therefore, the side panel 123 extends to the end surface 113 and becomes at least a portion of the end surface 113, thereby reducing obstacles between the side panel 123 and the brush head 30. This allows the energy reflected by the brush head 30 or features of the human body outside the oral cavity, that propagates toward the side panel 123, to smoothly reach the energy transmission area 13, pass through the energy transmission area 13, and be received by the energy receiving module 40, thereby ensuring the normal operation of the energy receiving module 40.

[0095] Referring to FIG. 3 , in some embodiments, along the direction of the central axis X2 of the energy receiving module 40 , the distance between the energy receiving module 40 and the side plate 123 is no greater than 10 mm.

[0096] Along the direction of the central axis X2 of the energy receiving module 40, if the distance between the energy receiving module 40 and the side panel 123 (D2 in Figure 3) is larger, the energy receiving range is blocked by the non-energy transparent area 14 in the handle shell 10. The range occupied by the energy transparent area 13 in the energy receiving range is smaller, resulting in the energy receiving module 40 being difficult to obtain sufficient light reflected by the brush head 30 or human body features outside the mouth.

[0097] Therefore, along the direction of the central axis X2 of the energy receiving module 40, the distance between the energy receiving module 40 and the side panel 123 is not greater than 10 mm, for example, 2.3 mm, 3.1 mm, 4.6 mm, 5.9 mm, 6.4 mm, 7.7 mm, 8.2 mm, 9.4 mm, 9.8 mm or 10 mm, to ensure that the energy receiving range is less blocked by the non-energy transparent area 14 in the handle shell 10, and the energy transparent area 13 occupies more space within the energy receiving range, so that the energy receiving module 40 can receive more energy passing through the energy transparent area 13.

[0098] Referring to FIG. 4 , in some embodiments, the handle 10A includes a first side 15 and a second side 16 opposite to each other, the care portion faces the first side 15 , and the protrusion 12 is located on the second side 16 .

[0099] When the oral care device 100 is in operation, foam and liquid will form on the bristles 33. These foam and liquid will typically flow to the side of the handle 10A where the bristles 33 are located, and to the two sides adjacent to this side. Only a small amount of foam or liquid will flow to the side of the handle 10A opposite the bristles 33. If foam and liquid flow onto the protrusions 12, they will hinder energy from passing through the energy-transmitting area 13, affecting energy reception by the energy receiving module 40. Therefore, the bristles 33 may be oriented toward the first side 15, and the protrusions 12 may be located on the second side 16 to reduce foam and liquid flow onto the protrusions 12, thereby reducing the impact of foam and liquid on energy reception by the energy receiving module 40 and ensuring that the energy receiving module 40 can properly receive energy reflected by the brush head 30 or human features outside the oral cavity.

[0100] Referring to FIG. 2 and FIG. 3 , in some embodiments, a hydrophobic layer 1231 is provided on a surface of the side plate 123 outside the installation space 121 . The hydrophobic layer 1231 is used to reduce adhesion of liquid to the side plate 123 .

[0101] The oral care device 100 is used in environments with high humidity. If excessive liquid adheres to the side panels 123, the liquid will hinder energy transmission, making it difficult for the energy to pass through the side panels 123 and be received by the energy receiving module 40. Therefore, a hydrophobic layer 1231 can be provided on the surface of the side panels 123 outside the installation space 121. For example, fluorinated polyethylene, fluorocarbon wax, or other synthetic fluorine-containing polymers can be applied to the surface of the side panels 123 outside the installation space 121 to form the hydrophobic layer 1231. The hydrophobic layer 1231 can reduce the adhesion of liquid to the side panels 123, thereby reducing the amount of liquid and foam adhering to the side panels 123 and ensuring that energy can smoothly pass through the side panels 123 and be received by the energy receiving module 40.

[0102] Please refer to Figure 4. In some embodiments, a fixing groove 129 is provided on the inner wall of the installation space 121, and the energy receiving module 40 is installed in the fixing groove 129 to reduce the impact of the vibration of the movement 20 on the energy receiving module 40, so that the energy receiving module 40 can more smoothly receive the energy reflected by the brush head 30 or the human body features outside the oral cavity, thereby ensuring the normal operation of the energy receiving module 40.

[0103] The shape of the fixing groove 129 can be configured based on the shape of the energy receiving module 40 to ensure the stability of the energy receiving module 40 when installed in the fixing groove 129. For example, if the energy receiving module 40 is cylindrical, the fixing groove 129 can also be cylindrical. If the energy receiving module 40 is a cube, the fixing groove 129 can also be a cube.

[0104] Please refer to FIG. 4 . In some embodiments, a partition 17 is provided in the handle housing 10 . The partition 17 is located between the accommodating space 111 and the installation space 121 . The energy receiving module 40 is disposed on the partition 17 .

[0105] Specifically, a partition 17 may be provided in the accommodating space 111 and the installation space 121 to separate the installation space 121 from the accommodating space 111. The installation space 121 may be specifically used to place the energy receiving module 40 and devices related to the energy receiving module 40. Other devices of the oral care device 100, such as the movement 20 and the circuit board, may be provided in the accommodating space 111 to reduce interference received by the energy receiving module 40 from other devices of the oral care device 100, thereby ensuring the normal operation of the energy receiving module 40. In this case, the energy receiving module 40 may be provided on the partition 17 to enhance the installation stability of the energy receiving module 40, prevent the vibration of the movement 20 from affecting the energy receiving module 40, and ensure the normal operation of the energy receiving module 40.

[0106] Of course, referring to Figure 3, the partition 17 may not be provided in the handle shell 10, and a through hole 114 is provided on the outer peripheral side of the oral care device 100. The protrusion 12 can be used to cover the through hole 114. Then, when installing the internal device of the oral care device 100, the through hole 114 can be used to complete the installation, thereby improving the installation convenience of the oral care device 100.

[0107] Referring to Figure 4 , in certain embodiments, the partition 17 is provided with a through-hole 171. The movement 20 includes a driver 21 and a first circuit board 22 located within the handle housing 10. The output shaft 212 of the driver 21 partially extends outside the handle housing 10, and the brush rod is connected to the output shaft 212. The first circuit board 22 is located on one side of the driver 21, and the energy receiving module 40 is electrically connected to the first circuit board 22 via a first conductive member extending through the through-hole 171.

[0108] Specifically, the brush rod 31 is connected to the output shaft 212 of the driver 21. When the driver 21 is activated, the driver 21 can drive the brush rod 31 to vibrate via the output shaft 212. A first circuit board 22 is provided within the handle housing 10. A control module can be provided on the first circuit board 22. The control module can send an electrical signal to the energy receiving module 40 to control the opening and closing of the energy receiving module 40. The control module can also receive the electrical signal transmitted by the energy receiving module 40 to the control module, and analyze the energy information obtained by the energy receiving module 40 to obtain image information, distance information, position information, and other information related to the use of the oral care device 100.

[0109] The first circuit board 22 is disposed on one side of the driver 21, for example, on a side of the driver 21 near the partition 17. The partition 17 has a through-hole 171 extending therethrough. The first conductive member can pass through the through-hole 171 and connect to devices on both sides of the partition 17, allowing the oral care device 100 to transmit electrical signals to the devices on both sides of the partition 17 using the first conductive member.

[0110] The oral care device 100 can connect the first circuit board 22 and the energy receiving module 40 using a first conductive member provided with a through-hole 171, thereby achieving an electrical connection between the first circuit board 22 and the energy receiving module 40. When the energy receiving module 40 receives external energy, the energy receiving module 40 can convert the external energy into an electrical signal and transmit the electrical signal to the first circuit board 22 and a control module electrically connected to the first circuit board 22 via the first conductive member, so as to analyze the electrical signal or control the operation mode of the energy receiving module 40.

[0111] Please refer to FIG. 4 . In some embodiments, there is a gap between the first circuit board 22 and the partition 17 . The width of the gap is greater than 0.5 mm in a direction perpendicular to the center line of the handle housing 10 .

[0112] Specifically, if the distance between the first circuit board 22 and the partition 17 is too close, the first circuit board 22 and the partition 17 may easily touch each other, or even cause the first circuit board 22 to be worn by the partition 17. Therefore, the distance between the first circuit board 22 and the partition 17 should not be too close. In the direction perpendicular to the centerline of the handle housing 10, the width of the gap is greater than 0.5 mm, for example, the width is 0.51 mm, 0.57 mm, 0.64 mm, 0.72 mm, 0.85 mm, 0.91 mm or 1.01 mm. This ensures that there is sufficient distance between the partition 17 and the first circuit board 22 to prevent the partition 17 from rubbing against the first circuit board 22, thereby ensuring that the first circuit board 22 can normally transmit electrical signals and the energy receiving module 40 can normally operate.

[0113] Please refer to Figures 1 and 4. In some embodiments, the handle shell 10 is provided with a control area 115, the driving member 21 includes a first side 23 and a second side 24 opposite to each other, the first side 23 of the driving member 21 is on the same side as the side facing the nursing part, and the first circuit board 22 is provided on the second side 24 of the driving member 21; the movement 20 also includes a second circuit board 25 located in the handle shell 10, the second circuit board 25 is provided on the first side 23 of the driving member 21 and corresponds to the control area 115, and the second circuit board 25 is electrically connected to the first circuit board 22 through a second conductive member.

[0114] Specifically, the side facing the care portion is the side facing the bristles 33. The handle housing 10 may be provided with a control area 115, which the user can use to control the operation of the oral care device 100. For example, if the energy receiving module 40 is an imaging module, the oral care device 100 may be provided with a start button and a photo button on the control area 115. The user can use the start button to control the oral care device 100 to start or stop vibration, and the photo button to control the energy receiving module 40 to start or stop taking photos.

[0115] The second circuit board 25 may be provided with a control module, which can control the oral care device 100 to perform corresponding work. When the user presses a button on the control area 115, the control area 115 will generate a corresponding electrical signal, which will be transmitted to the second circuit board 25 and the control module of the second circuit board 25. Then the control module will control the operation of the oral care device 100 according to the electrical signal. For example, after the user presses the start button, the control module of the second circuit board 25 can send an electrical signal to the movement 20 to control the movement 20 to start vibrating, thereby cleaning. For another example, after the user presses the photo button, the control module of the second circuit board 25 can send an electrical signal to the control module of the first circuit board 22, and then send an electrical signal to the control module of the first circuit board 22 and then to the energy receiving module 40 to control the start of the energy receiving module 40.

[0116] In this way, the oral care device 100 can use the first circuit board 22 to receive electrical signals from the energy receiving module 40 and control the operation of the energy receiving module 40 to ensure the normal operation of the energy receiving module 40. The oral care device 100 can use the second circuit board 25 to receive electrical signals from the control area 115 and control the operation of the oral care device 100, so that the oral care device 100 can operate according to the user's needs.

[0117] Referring to Figures 2 and 4 , in certain embodiments, the protrusion 12 includes a peripheral side plate 125 and a cover plate 127. The peripheral side plate 125 protrudes from the outer periphery of the handle housing 10 in a direction away from the central axis X1 of the handle housing 10. The peripheral side plate 125 and the handle housing 10 may be integral or separate. The cover plate 127 is mounted on the peripheral side plate 125 and encloses an installation space 121 therewith.

[0118] Specifically, the cover plate 127 is mounted on the peripheral side plate 125 and encloses an installation space 121 with the peripheral side plate 125. The peripheral side plate 125 protrudes in a direction away from the central axis X1 of the handle shell 10 relative to the outer peripheral side of the handle shell 10, so that the installation space 121 also protrudes in a direction away from the central axis X1 of the handle shell 10 relative to the outer peripheral side of the handle shell 10. This provides ample space for the energy receiving module 40 to be installed in a direction away from the central axis X1 of the handle shell 10, and avoids the energy receiving module 40 being too close to the outer peripheral side of the handle shell 10 in the direction away from the central axis X1 of the handle shell 10, causing the handle shell 10 to block energy transmission to the energy receiving module 40, thereby ensuring that the energy receiving module 40 can smoothly receive at least part of the energy reflected by the brush head 30 or human features outside the oral cavity.

[0119] The peripheral side plate 125 and the handle shell 10 can be an integral structure to facilitate production of the peripheral side plate 125 and the handle shell 10. The peripheral side plate 125 and the handle shell 10 can also be separate structures, so that when installing the energy receiving module 40, the energy receiving module 40 can be first installed on the handle shell 10, and then the peripheral side plate 125 and the cover plate 127 are installed, thereby facilitating installation of the energy receiving module 40. When the peripheral side plate 125 and the handle shell 10 are separate structures, the cover plate 127 can be detachably or non-detachably mounted to the peripheral side plate 125.

[0120] The side plates 125 and the cover plate 127 may be provided with an energy transmission area 13 on the front side facing the brush head 30, so that the light reflected by the brush head 30 or the human body features outside the oral cavity can smoothly enter the protrusion 12 through the energy transmission area 13 and be absorbed by the energy receiving module 40, thereby ensuring the normal operation of the energy receiving module 40.

[0121] Referring to FIG. 2 and FIG. 3 , in some embodiments, the handle housing 10 further includes a sealing member 126 . The sealing member 126 is disposed between the peripheral side plate 125 and the cover plate 127 to seal the gap between the peripheral side plate 125 and the cover plate 127 .

[0122] Specifically, the humidity in the use scenario of the oral care device 100 is high, and prolonged contact with liquid will affect the operation of the energy receiving module 40. There is a certain gap between the peripheral side plate 125 and the cover plate 127, so there is a risk that liquid enters the installation space 121 through the gap between the peripheral side plate 125 and the cover plate 127 and contacts the energy receiving module 40. The oral care device 100 can be provided with a seal 126 between the peripheral side plate 125 and the cover plate 127 to reduce the amount of liquid that enters the installation space 121 through the gap between the peripheral side plate 125 and the cover plate 127 and contacts the energy receiving module 40, thereby ensuring the normal use of the energy receiving module 40.

[0123] Please refer to Figures 1 and 4. In some embodiments, the oral care device 100 further includes a prompter 70. The explanation of the prompter 70 is the same as the explanation of the prompter 70 in the oral care device 100 of the second aspect below, and is not discussed here.

[0124] Referring to FIG. 1 , in some embodiments, the oral care device 100 further includes a display 80 ; the display 80 is used to display relevant information of the care component obtained by analyzing the image.

[0125] Specifically, the oral care device 100 can analyze relevant information of the brush head 30 based on the image, such as product information of the brush head 30, usage time of the brush head 30, or vibration frequency of the brush head 30. At this time, the oral care device 100 can display relevant information of the brush head 30 on the display 80, so that the user can directly view the relevant information of the brush head 30.

[0126] Referring to FIG. 4 , in some embodiments, when the oral care device 100 is awakened, the energy receiving module 40 is activated.

[0127] Specifically, the oral care device 100 may further include an acceleration sensor that can detect the acceleration when the oral care device 100 is moved. When the user moves the oral care device 100 while it is powered off, the acceleration sensor detects that the acceleration of the oral care device 100 changes from 0 to a certain value. At this time, the oral care device 100 is awakened and the energy receiving module 40 is activated. The energy receiving module 40 can be activated in time when the user wants to brush their teeth and obtain images of the brush head 30 or human features outside the oral cavity, thereby ensuring that the energy receiving module 40 can obtain sufficient images of the brush head 30 or human features outside the oral cavity during the user's brushing process, thereby facilitating the oral care device 100 to perform accurate analysis based on the sufficient images.

[0128] Referring to FIG. 4 , in certain embodiments, when the energy receiving module 40 is activated and the care component is found to be adapted according to image analysis, the oral care device 100 is powered on.

[0129] Specifically, when the oral care device 100 is awakened, the oral care device 100 will not start up immediately, but will use the energy receiving module 40 to obtain an image of the brush head 30 and analyze whether the brush head 30 is compatible based on the image. Only when the energy receiving module 40 is started and the brush head 30 is found to be compatible based on the image analysis, will the oral care device 100 start up. When the brush head 30 is found to be uncompatible based on the image analysis, the oral care device 100 can control the prompter 70 to issue a prompt message to prompt the user to replace the compatible brush head 30. In this way, the oral care device 100 can use the image obtained by the energy receiving module 40 to ensure that the oral care device 100 will only start up when the brush head 30 is compatible, thereby ensuring the working effect of the oral care device 100.

[0130] Based on user needs, some oral care devices are equipped with a receiving device, such as a camera, to read external environmental information and monitor the user's oral care process. However, the distance between the receiving device and the side of the oral care device where the care piece is located is relatively large, resulting in the receiving device receiving less energy information and being unable to analyze clear image information or accurate location and distance information.

[0131] Please refer to Figures 5 to 8. The oral care device 100 of the second aspect of the present application includes a handle shell 10, a care piece and an energy receiving module 40. The handle shell 10 includes an end shell portion 11 and a peripheral shell portion 13 connected to each other. The peripheral shell portion 13 is provided at the first end 111 of the end shell portion 11, and the end shell portion 11 and the peripheral shell portion 13 form a receiving space 1101. The care piece is provided at the second end of the end shell portion 11 away from the peripheral shell portion 13 and is located outside the receiving space 1101. The energy receiving module 40 is provided in the receiving space 1101 and is located on the side where the end shell portion 11 is located. The energy receiving module 40 faces the end shell portion 11 so that at least part of the structure of the care piece is located within the receiving range of the energy receiving module 40. The energy receiving module 40 is used to receive at least part of the energy reflected by the care piece and / or human body features outside the oral cavity.

[0132] Among them, the nursing parts are the same as the nursing parts in the oral care device 100 of the first aspect, and will not be described in detail here. The energy receiving module 40 can only receive at least part of the energy reflected from the nursing parts. At this time, there are only nursing parts within the receiving range of the energy receiving module 40. The energy receiving module 40 can identify and analyze the characteristics and related parameters of the nursing parts to obtain image information of the nursing parts and component information of the nursing parts (such as model, production time and service life, etc.). The energy receiving module 40 can also only receive at least part of the energy reflected from human body features outside the oral cavity. At this time, the receiving range of the energy receiving module 40 is completely staggered with the nursing parts, that is: there are no nursing parts within the receiving range of the energy receiving module 40. The energy receiving module 40 can identify and analyze human body features outside the oral cavity, and obtain relevant information generated by the user when using the oral care device 100, such as usage time, frequency of use and identity of the user. The energy receiving module 40 can also simultaneously receive at least a portion of the energy reflected by the care component and / or a human feature outside the oral cavity. If both the care component and the human feature outside the oral cavity are within the receiving range of the energy receiving module 40, the energy receiving module 40 can analyze the energy reflected by both components to obtain image information, distance information, and position information of the care component and the human feature outside the oral cavity, and determine the positional relationship between the care component and the human feature outside the oral cavity. For example, this information may include information such as the predetermined tooth zone within which the care component is located, whether the care component is in the predetermined operating position, and the duration of operation of the care component within a predetermined tooth zone.

[0133] In the oral care device 100 of the present application, the energy receiving module 40 is arranged in the accommodating space 1101 formed by the end shell portion 11 and the peripheral shell portion 13. Compared with the peripheral shell portion 13, the end shell portion 11 is closer to the side where the care piece is located. When the energy receiving module 40 is arranged on the side where the end shell portion 11 is located, there is no obstruction between the energy receiving module 40 and the care piece. The energy reflected by the care piece and / or the human body features outside the oral cavity can enter the energy receiving module 40 more, and the energy receiving module 40 obtains more information.

[0134] The oral care device 100 of the second aspect will be further described below with reference to the accompanying drawings.

[0135] Referring to Figures 5 and 7 , in certain embodiments, the handle housing 10 includes a first end 101 and a second end 102, opposite to each other. The brush head 30 is disposed at the first end 101, and the structure of the oral care device 100 installed within the handle housing 10 can be inserted and installed within the handle housing 10 from the second end 102. The handle housing 10 has a central axis A (hereinafter referred to as "central axis A"), which is the longitudinal axis of the handle housing 10. The handle housing 10 also includes a first side 103 and a second side 104, opposite to each other. A direction Y perpendicular to and away from the central axis A of the handle housing 10 (hereinafter referred to as "direction Y") can be either from the first side 103 toward the second side 104 or from the second side 104 toward the first side 103. The outer contour of the cross-section of the handle housing 10 includes, but is not limited to, a perfect circle, an ellipse, a triangle, a quadrilateral, or a pentagon. In some embodiments, along the extension direction X of the central axis A of the handle housing 10 (hereinafter referred to as "extension direction X"), from the second end 102 to the first end 101, the outer contour dimensions of the cross section of the handle housing 10 gradually change. For example, the outer contour dimensions of the cross section of the handle housing 10 first remain unchanged and then gradually decrease, first increase and then decrease, or change multiple times. In other embodiments, along the extension direction X, from the second end 102 to the first end 101, the outer contour dimensions of the cross section of the handle housing 10 remain unchanged.

[0136] Specifically, in some embodiments, the end shell portion 11 and the peripheral shell portion 13 are both roughly shell structures with openings on both sides, and the materials of the end shell portion 11 and the peripheral shell portion 13 can be the same or different. The end shell portion 11 and the peripheral shell portion 13 can be integrally formed or separately formed. In this case, the end shell portion 11 and the peripheral shell portion 13 are detachably or non-detachably connected. The brush head 30 is provided at one end of the end shell portion 11, and the energy receiving module 40 is located in the end shell portion 11 and faces the end shell portion 11. The peripheral shell portion 13 is connected to the end shell portion 11 and is provided at the other end of the end shell portion 11. Compared with the peripheral shell portion 13, the end shell portion 11 is closer to the side where the brush head 30 is located, so that the energy receiving module 40 is arranged in the handle shell 10 and is located at the end portion of the side closer to the brush head 30. When the energy receiving module 40 is arranged in the end shell portion 11, the distance between the energy receiving module 40 and the brush head 30 is closer, and the energy reflected by the brush head 30 and / or the human body features outside the oral cavity can enter the energy receiving module 40 more, and the energy receiving module 40 obtains more information.

[0137] More specifically, in some embodiments, the outer contour of the cross-section of the end shell 11 gradually decreases along the extension direction X, so that the end shell 11 is roughly a truncated cone or a prism structure with a space inside and two opposite ends that are flat. Because the end shell 11 is roughly a truncated cone or a prism structure and the side with a smaller outer contour of the end shell 11 is closer to the brush head 30, during the use of the oral care device 100, liquid and foam flowing from the brush head 30 are not likely to remain on the outer surface of the end shell 11. Instead, they will flow along the outer wall of the end shell 11 from the side with a smaller outer contour of the end shell 11 to the side with a larger outer contour of the end shell 11, thereby preventing liquid and foam from remaining on the surface of the end shell 11 and affecting the energy receiving module 40 from receiving energy. In other embodiments, along the extension direction X, the outer contour dimension of the cross section of the end shell portion 11 first decreases, then remains unchanged, and then decreases again from the first end 111 to the second end 113, so that the end shell portion 11 forms a plane corresponding to the energy receiving module 40, thereby avoiding inaccurate image information or distance and position information obtained by analyzing the energy receiving module 40 after receiving energy.

[0138] More specifically, referring to Figure 11, in some embodiments, the handle shell 10 is provided with an energy-transmitting area 107 and a non-energy-transmitting area 108 that are interconnected. The energy receiving module 40 faces the energy-transmitting area 107, and the receiving range of the energy receiving module 40 is staggered from the non-energy-transmitting area 108. At least part of the energy reflected by the brush head 30 and / or the human body features outside the oral cavity enters the energy receiving module 40 through the energy-transmitting area 107. On the one hand, the non-energy-transmitting area 108 can block the internal structure of the oral care device 100, making the appearance of the oral care device 100 more beautiful. On the other hand, it can also limit the angle at which at least part of the energy reflected by the brush head 30 and / or the human body features outside the oral cavity enters the receiving area of ​​the energy receiving module 40, thereby preventing the energy receiving module 40 from obtaining too much invalid information. The energy-transmitting area 107 can be provided at the end shell portion 11, or at the peripheral shell portion 13, or at both the end shell portion 11 and the peripheral shell portion 13.

[0139] Further, referring to FIG8 , in certain embodiments, when the end shell portion 11 is a truncated cone structure or a prism structure having two opposite through holes, one of the through holes is located on the end face of the end shell portion 11 with a smaller area and close to the side where the brush head 30 is located, and the edge of the through hole is the inner contour of the end shell portion 11, and the other through hole is located on the end face of the end shell portion 11 with a larger area and connected to the peripheral shell portion 13, and the outer contour of the end face of the end shell portion 11 with a larger area is the outer contour of the end shell portion 11. The projection of the end shell portion 11 along the extension direction X includes a first projection T1 and a second projection T2 connected thereto, the first projection T1 being the projection formed by the inner contour of the end shell portion 11, the second projection T2 being the projection between the inner contour of the end shell portion 11 and the outer contour of the end shell portion 11, and the outer contour of the second projection T2 being the outer contour of the end shell portion 11. The projection of the energy receiving module 40 along the extension direction X is located within the second projection T2. ​​When the energy receiving module 40 is located within the first projection T1, the energy receiving module 40 is close to the side where the central axis A of the handle shell 10 is located. At this time, the receiving range of the energy receiving module 40 may be blocked by part of the structure of the brush head 30 or part of the structure of the end shell 11. When the energy receiving module 40 is located within the second projection T2, the energy receiving module 40 is located near the inner wall of the handle shell 10, and the main axis B of the energy receiving module 40 can be aligned with the vertex of the brush head 30. At this time, the energy information on both sides of the brush head 30 obtained by the energy receiving module 40 can be relatively symmetrical, and the image information, distance and position information obtained by analysis are also relatively symmetrical. Preferably, in some embodiments, because the end shell 11 is a truncated cone structure or a prism structure with different sizes at both ends, along the direction Y, the distance between the outer contour of the second projection T2 and the central axis A is greater than the distance between the outer contour of the first projection T1 and the central axis A. For example, the distance between the outer contour of the second projection T2 and the central axis A is twice the distance between the outer contour of the first projection T1 and the central axis A. In this case, the energy receiving module 40 can be aligned with the end shell 11 without being blocked by the partial structure extending from the first projection T1.

[0140] Furthermore, in conjunction with Figure 9, in some embodiments, the energy receiving module 40 forms a third projection T3 along the direction Y, and the end shell portion 11 forms a fourth projection T4 along the direction Y. The third projection T3 is located within the fourth projection T4, so as to ensure that the energy receiving module 40 can be located within the end shell portion 11 closer to the brush head 30 within the handle shell 10, that is, the energy receiving module 40 is located at the end of the handle shell 10 and within the handle shell 10. When the energy receiving module 40 is located within the end shell portion 11 and does not protrude beyond the projection range of the end shell portion 11 in the direction Y, the end shell portion 11 can protect the energy receiving module 40, thereby preventing the energy receiving module 40 from colliding with other parts when the oral care device 100 falls or bumps, causing displacement, falling, or even damage.

[0141] Furthermore, referring to FIG9 , in some embodiments, the energy receiving module 40 forms a fifth projection T5 along the extension direction X, and the end shell portion 11 forms a sixth projection T6 along the extension direction X, and the fifth projection T5 is located within the sixth projection T6, so as to ensure that the energy receiving module 40 can be located within the end shell portion 11 closer to the brush head 30 within the handle shell 10, that is, the energy receiving module 40 is located at the end of the handle shell 10 and within the handle shell 10. When the energy receiving module 40 is located within the end shell portion 11 and does not protrude beyond the projection range of the end shell portion 11 in the extension direction X and the direction Y, the end shell portion 11 can protect the energy receiving module 40, preventing the energy receiving module 40 from colliding with other parts when the oral care device 100 falls or bumps, resulting in displacement, falling, or even damage.

[0142] Referring to Figures 7 and 10 , in some embodiments, the energy-transmitting area 107 is a portion of the handle housing 10 that is energy-transmitting. The energy-transmitting areas 107 provided on the end housing portion 11 and the peripheral housing portion 13 may be connected or separated. In other embodiments, the energy-transmitting area 107 is a window provided on the handle housing 10, and the surface of the energy-transmitting area 107 is provided with a structure capable of sealing the gap between the handle housing 10 and the energy receiving module 40, thereby preventing liquid foam, etc., from contacting the energy receiving module 40 through the window.

[0143] Please refer to Figure 3. In some embodiments, the peripheral shell portion 13 is provided with an opening 135, and the opening 135 is located on the second side 104. The energy receiving module 40 is provided in the opening 135 and is located in the handle shell 10. The handle shell 10 may further include a cover 15, which is detachably or non-detachably connected to the handle shell 10. The material of the cover 15 includes but is not limited to plastic, rubber or silicone. The material of the cover 15 is the same as or different from that of the handle shell 10. The cover 15 is capable of covering the opening 135 and is respectively connected to the end shell portion 11 and the peripheral shell portion 13, and the energy receiving module 40 faces the cover 15 to receive at least part of the energy reflected by the brush head 30 and / or human body features outside the oral cavity. In some examples, the energy receiving module 40 is connected to the peripheral shell portion 13. In other examples, the energy receiving module 40 is connected to the cover 15. When the cover 15 is removable from the surrounding shell 13 and / or the end shell 11, if the energy receiving module 40 malfunctions or is damaged, the user can directly repair or replace the energy receiving module 40 by opening the cover 15 without having to disassemble the entire oral care device 100, which is more convenient. When the cover 15 is not removable from the surrounding shell 13 and / or the end shell 11, external dust, moisture, or liquid will not enter the handle shell 10 through the gap between the cover 15 and the surrounding shell 13 and / or the end shell 11 and come into contact with the energy receiving module 40.

[0144] More specifically, in some embodiments, the cover 15 includes a first portion 151 and a second portion 153 connected to each other, the first portion 151 is connected to the end shell portion 11, the second portion 153 is connected to the peripheral shell portion 13, and the energy receiving module 40 faces the first portion 151. At least one side surface of the bent and connected cover 15 (the side surface of the first portion 151 of the cover 15) can correspond to the energy receiving module 40. At this time, the energy receiving range of the energy receiving module 40 is only the range of the brush head 30 and the two sides of the brush head 30, and there will be no other structures that will block the energy within the receiving range (for example: the output shaft 212 of the driving member 21, the non-energy transparent area 108 of the end shell portion 11, etc.). The energy receiving module 40 receives more energy and obtains more complete information. The side of the first part 151 facing the outside of the handle shell 10 and the side of the end shell part 11 facing the outside of the handle shell 10 together form the end face 105 of the handle shell 10, and the side of the second part 153 facing the outside of the handle shell 10 and the side of the peripheral shell part 13 facing the outside of the handle shell 10 together form the side face 106 of the handle shell 10. When the energy receiving module 40 faces the first part 151, the energy receiving module 40 receives more effective information than when the energy receiving module 40 faces the second part 153.

[0145] More specifically, in some embodiments, a hydrophobic layer is provided on one side of the first portion 151 located outside the handle shell 10, and the hydrophobic layer is used to reduce the adhesion of liquid to the first portion 151. The hydrophobic layer can be a hydrophobic coating sprayed on the first portion 151, such as a polyethylene hydrophobic coating or a polytetrafluoroethylene hydrophobic coating. The hydrophobic layer can also be made of a hydrophobic material such as an organic-inorganic hybrid material partially prepared by nanotechnology. When the first portion 151 is provided with a hydrophobic layer, a large amount of liquid or foam will not adhere to the first portion 151, so the liquid or foam will flow along the first portion 151 to the second portion 153. At this time, the energy receiving module 40 corresponding to the first portion 151 will not be blocked, the energy receiving module 40 receives more energy, and the information that can be obtained is more complete.

[0146] More specifically, referring to Figure 12, in certain embodiments, along a direction perpendicular to the first portion 151 on the exterior side of the handle housing 10, the first thickness H1 of the first portion 151 is less than the second thickness H2 of the end housing portion 11. Along direction Y, the first thickness H1 of the second portion 153 is less than the second thickness H2 of the peripheral housing portion 13. On the one hand, an excessively thick first portion 151 will block some energy from passing through the cover 15, reducing the amount of energy that the energy receiving module 40 can receive. On the other hand, if the first thickness H1 of the second portion 153 is too great, the cover 15 will be difficult to install on the handle housing 10 and may easily fall off during use. When the first portion 151 is of moderate thickness, energy loss through the energy transmission zone 107 is relatively small, resulting in greater energy gain and more complete and clear information. When the second portion 153 is of moderate thickness, the bond between the cover 15 and the peripheral housing portion 13 of the handle housing 10 is more stable and less likely to fall off.

[0147] Furthermore, referring to FIG11 , in certain embodiments, the arrangement of the energy-transmitting area 107 and the non-energy-transmitting area 108 can be adjusted according to usage and installation requirements, and the thickness of the energy-transmitting area 107 is smaller than the thickness of the non-energy-transmitting area 108, so that light and other energy suffer less loss when passing through the energy-transmitting area 107. In one example, as shown in FIG11-i , the first portion 151 is the energy-transmitting area 107, and the end shell portion 11 and the second portion 153 are both the non-energy-transmitting area 108. In this case, the energy receiving module 40 needs to be aligned with the first portion 151 to prevent the end shell portion 11 and the second portion 153 from blocking the energy receiving module 40 from receiving energy. In another example, as shown in FIG11-ii , the first portion 151 and the second portion 153 are both the energy-transmitting area 107, and the end shell portion 11 is the non-energy-transmitting area 108. In this case, the energy receiving module 40 only needs to avoid the end shell portion 11. In another example, as shown in FIG11-iii, the first portion 151, the second portion 153 and the end shell portion 11 are all energy-transmitting areas 107. In this case, the installation method of the energy receiving module 40 is relatively freer. In another example, as shown in FIG11-iv, the first portion 151 is the energy-transmitting area 107, a part of the second portion 153 is the energy-transmitting area 107, and the other part is the non-energy-transmitting area 108. In this case, part of the second portion 153 can cover the internal structure of the oral care device 100, making the appearance of the oral care device 100 more beautiful. In short, no matter how the energy-transmitting area 107 and the non-energy-transmitting area 108 are set, the energy receiving module 40 needs to face the energy-transmitting area 107 so that the receiving range of the energy receiving module 40 is staggered with the non-energy-transmitting area 108, and the external energy enters the energy receiving module 40 through the energy-transmitting area 107.

[0148] Furthermore, referring to FIG. 12 , in some embodiments, a first distance D1 between the energy receiving module 40 and the first portion 151 along the extension direction X is no greater than 10 mm. When D1 is greater than 10 mm, the energy receiving module 40 is more likely to be blocked by the first portion 151, affecting the energy receiving module 40's ability to receive energy. When D1 is less than or equal to 10 mm, the energy receiving module 40 is less blocked by the first portion 151, or even not blocked at all, thereby allowing the energy receiving module 40 to receive more energy.

[0149] Furthermore, referring to FIG. 12 , in some embodiments, along the extension direction X, the second distance D2 between the energy receiving module 40 and the energy-impermeable region 108 is less than 2 mm. Because the range of energy information acquired by the energy receiving module 40 is approximately a diverging cone angle, when D2 ≥ 2 mm, the energy receiving module 40 is more likely to be blocked by the energy-impermeable region 108, affecting the energy receiving module 40's reception of energy. When D2 < 2 mm, the energy receiving module 40 is less blocked by the energy-impermeable region 108 or even not blocked at all, thereby allowing the energy receiving module 40 to receive more energy.

[0150] Furthermore, in some embodiments, the handle shell 10 further includes a first seal 17. The material of the first seal 17 includes, but is not limited to, elastic and flexible materials such as rubber, silicone, or resin. The first seal 17 is provided on the peripheral side of the energy receiving module 40 and is located between the cover 15 and the energy receiving module 40 and / or between the energy receiving module 40 and the handle shell 10. The first seal 17 can be used to seal the gap between the energy receiving module 40 and the cover 15 and / or the gap between the energy receiving module 40 and the handle shell 10. Since the cover 15 and the peripheral shell portion 13 and / or the end shell portion 11 are detachable from each other, there is a gap between the energy receiving module 40 and the cover 15, and between the energy receiving module 40 and the handle shell 10. The first seal 17 can prevent external water vapor, liquid or foam from entering the oral care device 100 through the gap between the cover body 15 and the surrounding shell 13 and contacting the energy receiving module 40, thereby avoiding short circuit of the energy receiving module 40 or damage to other electrical structures inside the oral care device 100.

[0151] Please refer to Figures 7 and 13. In other embodiments, the handle shell 10 may further include a protrusion 19 provided on the second side 104 of the handle shell 10. The protrusion 19 and the handle shell 10 may be an integral structure or a split structure. The protrusion 19 and the handle shell 10 are detachably or non-detachably connected. The energy receiving module 40 is at least partially provided in the protrusion 19, and the energy receiving module 40 is opposite to the inner wall of the protrusion 19 on the side where the brush head 30 is located. When the protrusion 19 and the handle shell 10 are integrally formed, there is no gap between the protrusion 19 and the handle shell 10, and the liquid and foam flowing down from the brush head 30 cannot enter the handle shell 10, thereby preventing the energy receiving module 40 from contacting the liquid and foam, and preventing moisture and rust or causing the internal circuit of the oral care device 100 to short-circuit or even be damaged.

[0152] Please refer to Figure 14. In some embodiments, the protrusion 19 includes a peripheral side plate 191 and a cover plate 193. The peripheral side plate 191 is provided on the second side 104 and protrudes from the surface of the handle shell 10. The cover plate 193 is installed on the peripheral side plate 191 and forms a receiving space 1101 with the peripheral side plate 191. The energy receiving module 40 is provided in the receiving space 1101. The peripheral side plate 191 is a structure protruding from the surface of the handle shell 10. The cover plate 193 can be combined with the peripheral side plate 191 and shield the energy receiving module 40 to prevent the energy receiving module 40 from direct contact with the external environment and causing damage. At the same time, the connection between the cover plate 193 installed on the handle shell 10 through the peripheral side plate 191 and the peripheral side plate 191 is more stable and not easy to fall off.

[0153] More specifically, in some embodiments, along direction Y, the energy receiving module 40 is located on the central axis of the protrusion 19. The central axis of the protrusion 19 is a straight line from the center of the side of the protrusion 19 facing the care piece to the center of the side of the protrusion 19 away from the care piece. The central axis of the protrusion 19 divides the protrusion 19 into two relatively symmetrical parts. The correspondence between the energy receiving module 40 and the central axis of the protrusion 19 can ensure that the receiving range of the energy receiving module 40 is relatively symmetrical relative to the oral care device 100. At this time, the energy obtained by the energy receiving module 40 is also reflected from two relatively symmetrical sides. The energy receiving module 40 can obtain relatively symmetrical image information or distance position information, etc. A first arc surface 1901 (as shown in FIG. 13 ) is provided on the side of the protrusion 19 facing the brush head 30, and the energy receiving module 40 corresponds to the center of the first arc surface 1901. When the energy receiving module 40 is symmetrical to the center of the first arc surface 1901 , the distortion of the first arc surface 1901 has a relatively smaller impact on the energy receiving module 40 , thereby preventing distortion of image information or distance position information obtained by the energy receiving module 40 .

[0154] Furthermore, referring to FIG. 15 , in certain embodiments, the energy receiving module 40 forms a seventh projection T7 along the extension direction X, and the protrusion 19 forms an eighth projection T8 along the extension direction X, with the seventh projection T7 located within the eighth projection T8. The energy receiving module 40 does not protrude relative to the handle shell 10, resulting in a smoother, more aesthetically pleasing handle shell 10 of the oral care device 100. Furthermore, if the oral care device 100 is bumped or dropped, the internal energy receiving module 40 will not preferentially contact the ground and cause damage, thereby extending the service life of the oral care device 100.

[0155] Specifically, referring to FIG. 15 , in certain embodiments, a third distance D3 between the outer contour of the seventh projection T7 and the outer contour of the eighth projection T8 is not less than 0.5 mm. Because the energy receiving module 40 is disposed within the protrusion 19, when D3 is less than 0.5 mm, the distance between the energy receiving module 40 and the inner wall of the protrusion 19 is too small. When the oral care device 100 vibrates, the energy receiving module 40 is easily collided with the protrusion 19, causing damage or displacement of the energy receiving module 40, resulting in incomplete or unavailable energy information. However, when D3 is greater than or equal to 0.5 mm, a buffer space can be formed between the energy receiving module 40 and the protrusion 19.

[0156] Furthermore, in conjunction with Figure 15, in some embodiments, along the direction Y, the fourth distance D4 of the highest point of the protrusion 19 relative to the second side 104 is in the range of [1mm, 5mm]. D4 can be 1mm, 1.5mm, 2mm, 2.5mm, 2.7mm, 3mm, 3.5mm, 4mm, 4.5 or 5mm. When D4>5mm, the height of the protrusion 19 relative to the second side 104 is too high, and the energy receiving module 40 is closer to the outside and easily damaged by bumps. When D4<1mm, the energy receiving module 40 is closer to the inside of the handle shell 10 and easily blocked. Therefore, when D4 is in the range of [1mm, 5mm], the main axis B of the energy receiving module 40 can be aligned with the vertex of the brush head 30, and the energy information obtained on both sides of the brush head 30 can be relatively symmetrical, and the image information, distance and position information obtained by analysis are also relatively symmetrical.

[0157] Specifically, in some examples, the outer contour size of the cross section of the protrusion 19 gradually decreases along the extension direction X. In other examples, the outer contour size of the cross section of the protrusion 19 first gradually decreases and then gradually increases along the extension direction X. On the one hand, the protrusion 19 with a gradually changing outer contour size of the cross section can adapt to the user's usage habits and avoid collisions with the user's hands during use. On the other hand, the protrusion 19 with a gradually changing outer contour size of the cross section can also be smoothly connected to the handle shell 10, avoiding scratches caused by sharp edges at the connection.

[0158] Furthermore, in some embodiments, the protrusion 19 is provided with an energy-transmitting area 107, and the energy receiving module 40 is opposite the energy-transmitting area 107. When the energy-transmitting area 107 of the protrusion 19 is opposite the energy receiving module 40, the receiving range of the energy receiving module 40 is not blocked by the non-energy-transmitting area 108, or the area blocked by the non-energy-transmitting area 108 is relatively small, so that the energy receiving module 40 receives more energy and obtains more accurate data.

[0159] Furthermore, in some embodiments, a second sealing member 195 is provided between the peripheral side plate 191 and the cover plate 193 . The explanation of the second sealing member 195 is the same as that of the sealing member 126 in the oral care device 100 of the first aspect, and will not be repeated here.

[0160] 16 and 17 , the oral care device 100 further includes a core 20 detachably or non-detachably mounted on the inner wall of the handle housing 10 .

[0161] In conjunction with Figure 7, in some embodiments, the movement 20 includes a driving member 21 and a mounting bracket 29. The driving member 21 is a driving motor with an output shaft 212. The driving member 21 is arranged in the handle shell 10. At least part of the structure of the output shaft 212 extends from the end shell portion 11 of the handle shell 10 and is connected to the brush head 30. When the driving member 21 is powered and starts working, the output shaft 212 can drive the brush head 30 to vibrate to automatically clean the teeth. The energy receiving module 40 is connected to the driving member 21 and faces the energy transmission area 107. When the energy receiving module 40 is arranged between the driving member 21 and the second side 104 of the handle shell 10, the energy receiving module 40 can be directly electrically connected to other structures of the oral care device 100 in the handle shell 10 without having to open a hole on the surface of the handle shell 10, thereby improving the sealing and waterproof performance of the oral care device 100. The mounting bracket 29 is generally a hollow shell. The material of the mounting bracket 29 includes but is not limited to metal, plastic or silicone. The mounting bracket 29 can be used to mount the driving member 21 to prevent the driving member 21 from shaking in the handle housing 10 and causing damage to the driving member 21 .

[0162] Furthermore, in some embodiments, the movement 20 is provided with a mounting groove 293 having a mounting opening 295. Along the extension direction X, in some examples, the mounting groove 293 is provided at an end of the mounting frame 29 proximal to the end housing portion 11 and recessed toward an end distal to the end housing portion 11. The energy receiving module 40 is at least partially accommodated within the mounting groove 293 and connected to the inner wall of the mounting groove 293. In other examples, a through hole is provided on the side of the mounting frame 29 opposite the output shaft 212. The mounting groove 293 can be provided at an end of the driving member 21 proximal to the end housing portion 11 and recessed toward an end distal to the end housing portion 11. The energy receiving module 40 can be at least partially accommodated within the mounting groove 293 through the through hole and connected to the inner wall of the mounting groove 293. The mounting groove 293 secures the energy receiving module 40 to prevent it from shaking violently when the driver 21 is in operation. This prevents the energy receiving module 40 from being affected in its energy acquisition range, which could result in incomplete or erroneous information. Furthermore, it prevents the energy receiving module 40 from falling off the driver 21.

[0163] Referring to Figures 6 and 17 , in certain embodiments, the explanation of the energy receiving module 40 is substantially the same as that of the energy receiving module 40 in the oral care device 100 of the first aspect. Furthermore, referring to Figure 2 , the energy receiving module 40 includes a receiving element 41 and a buffering element 43. The receiving element 41 is generally an electronic device having a receiving end. The receiving element 41 faces the brush head 30 and can receive external energy reflected from the brush head 30 and the vicinity thereof through the receiving end. The buffering element 43 is generally an elastic structure that wraps around the receiving element 41 and provides a buffering effect. The buffer 43 is arranged on the outside of the receiving part 41 and can isolate the receiving part 41 from the handle shell 10, or the receiving part 41 from the cover body 15, or the receiving part 41 from the cover plate 193. The buffer 43 can contact the handle shell 10 and / or the buffer 43 from the cover plate 193, and avoid direct contact or even collision between the receiving part 41 and the cover plate 193 or between the receiving part 41 and the handle shell 10 or between the receiving part 41 and the cover body 15, and avoid damage or displacement of the receiving part 41, resulting in inaccurate image information or distance position information obtained by the receiving part 41.

[0164] More specifically, in some embodiments, the energy receiving module 40 is mounted on the peripheral housing portion 13, which is provided with a mounting plate 131. The mounting plate 131 is provided with a first mounting groove 133. The first mounting groove 133 is recessed from the mounting plate 131 toward the direction close to the movement 20, and the energy receiving module 40 is at least partially disposed within the first mounting groove 133. In other embodiments, the energy receiving module 40 is mounted on the end housing portion 11, which is provided with a second mounting groove 115. The second mounting groove 115 is recessed from the inner wall of the end housing portion 11 toward the direction close to the brush head 30, and the energy receiving module 40 is at least partially disposed within the second mounting groove 115. The first mounting groove 133 and the second mounting groove 115 are both spatial structures for installing the energy receiving module 40. When the energy receiving module 40 is arranged in the first mounting groove 133 and the second mounting groove 115, the position of the energy receiving module 40 in the handle shell 10 is more stable, and it is not easy to fall off from the handle shell 10 or collide with other structures, thereby avoiding damage to the energy receiving module 40.

[0165] Furthermore, in some embodiments, the energy receiving module 40 has a main axis B, and the extension direction of the main axis B is perpendicular to the plane of the energy receiving module 40 aligned with the energy transmission area 107. Since the energy receiving module 40 needs to obtain energy reflected by the brush head 30 and the human body features outside the oral cavity near the brush head 30, the receiving end of the energy receiving module 40 needs to face the side where the brush head 30 is located. In some embodiments, the extension direction of the main axis B intersects with the extension direction X. When the extension direction of the main axis B intersects with the extension direction X, the energy receiving module 40 can obtain symmetrical information on both sides of the brush head 30, and the formed image information and distance position information are more complete. In other embodiments, the extension direction of the main axis B is parallel to the extension direction X. When the extension direction of the main axis B is parallel to the extension direction X, since the range in which the energy receiving module 40 obtains energy information is roughly a diverging cone angle, the energy receiving module 40 can also obtain symmetrical information on both sides of the brush head 30 through the edge of the cone angle.

[0166] Furthermore, in conjunction with Figure 16, in some embodiments, when the extension direction of the main axis B is parallel to the extension direction X, the fifth distance D5 between the main axis B and the central axis A is greater than 5 mm. The range in which the energy receiving module 40 acquires energy information is roughly a diverging cone angle, so the receiving range closer to the end of the energy receiving module 40 is smaller, and there are fewer structures entering the energy acquisition range of the energy receiving module 40. At the same time, when the area closer to the end of the energy receiving module 40 is blocked, the area in which energy information cannot be received is relatively larger, and the obstruction has a greater impact on the range in which the energy receiving module 40 acquires energy information. The receiving range farther from the end of the energy receiving module 40 is larger, and there are more structures entering the energy acquisition range of the energy receiving module 40. At the same time, when the end farther from the energy receiving module 40 is blocked, the area in which energy information cannot be received is relatively smaller, and the obstruction has a smaller impact on the range in which the energy receiving module 40 acquires energy information. Therefore, in order to prevent the brush head 30 from blocking the energy receiving module 40, the distance between the outer contour of the projection of the brush head 30 along the extension direction X and the main axis B needs to be greater than a predetermined threshold. When D5≤5mm, the energy receiving module 40 is closer to the center of the handle shell 10, and part of the structure of the end shell 11 and part of the structure of the brush head 30 may enter the energy acquisition range of the energy receiving module 40. The energy receiving module 40 is more likely to be blocked by the end shell 11 and the brush head 30, affecting the energy reception of the energy receiving module 40. When D5>5mm, the energy receiving module 40 is aligned with the energy-transmitting area 107 on the end shell 11, and the range of the energy receiving module 40 blocked by the brush head 30 and the non-energy-transmitting area 1088 is smaller or even not blocked. Therefore, the energy receiving module 40 receives more energy and obtains more image information, position information or distance information.

[0167] Furthermore, in conjunction with Figure 15, in some embodiments, the sixth distance D6 between the outer contour of the projection of the brush head 30 along the extension direction X and the main axis B is greater than 2 mm. When D6 ≤ 2 mm, the energy receiving module 40 is closer to the center of the handle shell 10. At this time, part of the structure of the brush head 30 may enter the energy acquisition range of the energy receiving module 40. The energy receiving module 40 is more likely to be blocked by the end shell 11 and the brush head 30, affecting the energy receiving module 40's reception of energy. When D6 > 2 mm, the energy receiving module 40 is aligned with the energy transmission area 107 on the end shell 11 and avoids the brush head 30. The range of the energy receiving module 40 blocked by the brush head 30 is smaller or even not blocked. Therefore, the energy receiving module 40 receives more energy and obtains more image information, position information, or distance information.

[0168] Further, referring to Figures 10 and 14, in some embodiments, along direction Y, the receiving range includes intersecting first edge M and second edge N. The angle between the first edge M and the main axis B along direction Y is in the range of [20°, 60°]; the angle between the second edge N and the main axis B along direction Y is in the range of [15°, 45°]. The brush plate 35 includes at least one bristle-embedded portion 32. Because bristles 33 are provided on one side of the bristle-embedded portion 32, the free ends of the bristles 33 are further away from the central axis A of the handle housing 10 than on the other side of the bristle-embedded portion 32. The different angles between the two edges of the receiving range and the central axis A enable the receiving range of the energy receiving module 40 to include both sides of the asymmetric brush head 30 as much as possible, thereby obtaining more complete information. The angle between the first edge M and the main axis B along direction Y includes, but is not limited to, 20°, 25°, 30°, 35°, 40°, 43°, 45°, 50°, 55°, 57°, or 60°. The angle between the second edge N and the main axis B along direction Y includes, but is not limited to, 15°, 17°, 20°, 24°, 26°, 28°, 30°, 35°, 40°, 43°, or 45°. When the angle between the first edge M and the main axis B along direction Y is greater than 60°, the receiving range deviates too much from the central axis A of the handle shell 10, and the energy receiving module 40 receives less reflected information from the brush head 30 and human features outside the oral cavity, resulting in less effective information being obtained, incomplete image information, or incomplete distance and position information. When the angle between the first edge M and the main axis B along direction Y is less than 20°, the brush head 30 occupies most of the space within the receiving range of the energy receiving module 40. Therefore, the reflected information from the human features outside the oral cavity decreases, and the effective information obtained about the human features outside the oral cavity is reduced, making it difficult to determine which tooth zone the brush head 30 is currently in based on the user's human features outside the oral cavity. Therefore, when the angle between the first edge M and the main axis B along direction Y is in the range of [20°, 60°], the receiving range encompasses both sides of the asymmetric brush head 30, including both energy information reflected from the brush head 30 and energy information reflected from human features outside the oral cavity, resulting in more complete information acquired by the energy receiving module 40. When the angle between the second edge N and the main axis B along direction Y is less than 15°, the brush head 30 occupies a large portion of the receiving range of the energy receiving module 40. Consequently, less information is received about the human features outside the oral cavity, reducing the amount of valid information acquired about the human features outside the oral cavity and making it difficult to determine the tooth zone in which the brush head 30 is currently located based on the user's human features outside the oral cavity. When the angle between the second edge N and the main axis B along direction Y is greater than 45°, the receiving range deviates too far from the central axis A of the handle housing 10, reducing the amount of reflected information received by the energy receiving module 40 from the brush head 30 and human features outside the oral cavity, resulting in less valid information acquired and incomplete image information or distance position information.Therefore, when the angle range between the second edge N and the main axis B along the direction Y is [15°, 45°], the receiving range includes the two sides of the asymmetric brush head 30, which includes both energy information reflected from the brush head 30 and energy information reflected from human body features outside the mouth. The information obtained by the energy receiving module 40 is more complete.

[0169] Referring to Figure 18 , in certain embodiments, when the brush rod 31 is mounted on the output shaft 212 and located on the side of the first end 101, the central axis A of the brush rod 31 is parallel to or even coincides with the central axis A of the handle housing 10. When the extension direction of the main axis B intersects the extension direction X, the extension direction of the main axis B intersects the central axis A, and the intersection point is located between the middle portion of the brush rod 31 and the free end of the brush rod 31 away from the handle housing 10. When the extension direction of the main axis B intersects the extension direction X, and the intersection point is located between the middle portion of the brush rod 31 and the free end of the brush rod 31 away from the handle housing 10, the energy receiving module 40 can acquire symmetrical information about the brush head 30 and the areas on both sides of the brush head 30. In this case, the image information and distance position information obtained after analysis by the energy receiving module 40 are more complete.

[0170] Referring to Figures 5 and 17, in certain embodiments, the oral care device 100 may further include a prompter 70. The prompter 70 can output different prompt information for different usage scenarios based on the results of image analysis. The prompter 70 may output prompt information in the following ways: the prompter 70 issues an auditory prompt, a visual prompt, a tactile prompt, or an olfactory prompt. Auditory prompts include, but are not limited to, playing unusual content, rapid music, an alarm sound, or other sounds sufficient to attract the user's attention through a speaker (not shown, which may be mounted on the oral care device 100). Visual prompts include, but are not limited to, displaying unusual text or an unusual image on the display 80 (which may be mounted on the oral care device 100) or flashing an indicator light (not shown, which may be mounted on the oral care device 100). Tactile prompts include, but are not limited to, providing reminders through vibration feedback emitted by a vibrator (not shown, which may be mounted on the oral care device 100). Olfactory prompts include, but are not limited to, providing reminders through a special smell emitted by an odor sensor (not shown, which may be mounted on the oral care device 100).

[0171] In certain embodiments, if image analysis indicates that the brush head 30 is incompatible, the indicator 70 is configured to issue a prompt. The imaging module can capture image information of the brush head 30 and, based on the captured image information, obtain relevant information about the brush head 30, such as the model, production date, and expiration date. If the brush head 30 replaced by the user is incompatible with the oral care device 100, the indicator 70 can prompt the user to replace it with the correct brush head 30 to prevent damage to the oral care device 100.

[0172] In certain embodiments, the prompter 70 is configured to issue a prompt message when the imaging module is operating. Because the imaging module can capture images of human features and / or teeth outside the oral cavity near the brush head 30 and analyze and record the image information, the prompter 70 issues a prompt message when the imaging module is operating to remind the user to promptly protect their privacy.

[0173] In certain embodiments, when the image analysis shows that the running time of the brush head 30 in the predetermined tooth area is less than a preset time threshold, the prompter 70 is used to issue a prompt message. The imaging module can determine whether the brush head 30 is currently located in the predetermined tooth area based on the positional relationship between the brush head 30 and the human body features outside the oral cavity, and the imaging module can also record the time the brush head 30 stays in the predetermined tooth area and judge the cleaning effect performed by the brush head 30 in this area accordingly. When the running time that the brush head 30 stays in the predetermined tooth area is less than the preset time threshold, it can be considered that the cleaning effect performed by the brush head 30 in this area is not good. The prompter 70 can not only record the cleaning effect of each different tooth area, but also promptly prompt the user to extend the time of using the oral care device 100 in the predetermined tooth area.

[0174] In certain embodiments, the indicator 70 issues a prompt when image analysis indicates that the brush head 30 has been in use for longer than a preset upper limit. Each brush head 30 has a fixed optimal usage time. When a particular brush head 30 is installed on the output shaft 212, the imaging module records the installation time of that brush head 30 and begins recording the usage time of that brush head 30. When the usage time of that brush head 30 reaches or exceeds the preset upper limit, the indicator 70 issues a prompt to the user, prompting them to replace the brush head 30.

[0175] 5 and 17 , in some embodiments, the oral care device 100 may further include a display 80 . The explanation of the display 80 is the same as that of the oral care device 100 in the first aspect and is not repeated here.

[0176] Referring to Figures 5 and 17 , in certain embodiments, the oral care device 100 may further include a button 90 , which is a control component for turning the oral care device 100 on, off, or changing its operating state. The button 90 is located on the second side 104 of the handle housing 10 and outside the handle housing 10. Along direction Y, the button 90 and the energy receiving module 40 are located on the same side of the handle housing 10. The button 90 is electrically connected to the circuit board and the control module on the circuit board. When the oral care device 100 is initially used, the user can activate the button 90 to open the circuit between the driver 21 and the circuit board, and to open the circuit between the energy receiving module 40 and the circuit board. Alternatively, when the oral care device 100 is no longer in use, the user can activate the button 90 to disconnect the circuit between the driver 21 and the circuit board, and to disconnect the circuit between the energy receiving module 40 and the circuit board. Alternatively, if the user needs to adjust the operating state of the oral care device 100, the user can activate the button 90 (e.g., by single-clicking, double-clicking, or long-pressing) to change the operating state of all electrical components electrically connected to the circuit board. For example: the speed and direction of rotation of the driving member 21, the mode change of the energy receiving module 40, the triggering or turning off of the indicator 70, and whether the display 80 is displayed or not.

[0177] Oral care devices are electric devices that utilize a high-speed vibrating motor to rotate or vibrate the brush head to clean teeth. Depending on user needs, some oral care devices may include a camera or other receiver for reading external environmental information to monitor the user's cleaning progress. However, these receivers are often located on the front side of the device, where the buttons are located. When the user brushes, the liquid mixed with foam flows down the brush stem under gravity toward the handle of the oral care device. In this situation, the foam can easily block the receiver, affecting its ability to capture external information.

[0178] Referring to Figures 5 to 7, the oral care device 100 of the third aspect of the present application includes a handle shell 10, a movement 20, a button 90, a care piece and an energy receiving module 40. The handle shell 10 includes a first side 103 and a second side 104 opposite to each other. The movement 20 is provided in the handle shell 10 and at least part of the structure of the output shaft 212 of the movement 20 extends from the handle shell 10. The button 90 is provided on the first side 103 of the handle shell 10. The care piece is mounted on the output shaft 212 of the movement 20 and is located outside the handle shell 10. The energy receiving module 40 is provided in the handle shell 10 and is located on the second side 104 of the handle shell 10. The energy receiving module 40 faces the side where the care piece is located so that at least part of the structure of the care piece is located within the receiving range of the energy receiving module 40; the energy receiving module 40 is used to receive at least part of the energy reflected by the care piece and / or human body features outside the oral cavity.

[0179] In the oral care device 100 of the present application, the energy receiving module 40 is arranged on the rear side of the handle shell 10 opposite to the button 90. When the oral care device 100 is in use, the liquid mixed with foam will preferentially flow to the front side of the oral care device 100 where the button 90 is provided. At this time, the foam and liquid will not block the energy receiving module 40, and the energy receiving module 40 will receive energy more efficiently.

[0180] Please refer to FIG. 5 to FIG. 18 . The oral care device 100 of the third aspect is substantially the same as the oral care device 100 of the second aspect, except that:

[0181] Please refer to Figures 6 and 17. In some embodiments, a first positioning member 201 is provided on the outside of the driving member 21, and a second positioning member 1109 corresponding to the first positioning member 201 is provided on the inner wall of the handle shell 10. The second positioning member 1109 is used to cooperate with the first positioning member 201 to space the energy receiving module 40 from the inner wall of the handle shell 10. In some examples, the first positioning member 201 is a snap-fit ​​member, and the second positioning member 1109 is a slot that cooperates with the first positioning member 201. In other examples, the second positioning member 1109 is a snap-fit ​​member, and the first positioning member 201 is a slot that cooperates with the second positioning member 1109. The driving member 21 and the handle shell 10 are fixed to each other by the combination of the first positioning member 201 and the second positioning member 1109 and will not shake or even rotate. The connection between the driving member 21 and the handle shell 10 is more stable.

[0182] Further, referring to FIG16 , in certain embodiments, a spacer 1105 is provided in the handle housing 10. The spacer 1105 can separate the interior of the handle housing 10 into a first cavity 1101 and a second cavity 1103 that are isolated from each other. The driver 21 is provided in the first cavity 1101, and the energy receiving module 40 is provided in the second cavity 1103 to be separated from the driver 21. The spacer 1105 can not only separate the driver 21 and the energy receiving module 40 between the first cavity 1101 and the second cavity 1103 that are isolated from each other, thereby preventing the two from contacting each other and causing resonance, but can also prevent moisture or dust from entering the second cavity 1103 from the first cavity 1101 or from entering the first cavity 1101 from the second cavity 1103, thereby preventing damage to the driver 21 and the energy receiving module 40 at the same time.

[0183] Please continue to refer to Figure 12. In certain embodiments, the oral care device 100 further includes a third seal 203. The end shell 11 is provided with an opening. The output shaft 212 of the driving member 21 at least partially extends from the opening to the outside of the handle shell 10. At this time, there is a gap between the inner wall of the opening of the end shell 11 and the output shaft 212. The third seal 203 is provided in the handle shell 10 and can seal the gap between the output shaft 212 and the inner wall of the opening. When the third seal 203 is installed at the opening 135, there is also a gap between the portion of the third seal 203 located in the end shell 11 and the inner wall of the end shell 11. The energy receiving module 40 can be provided in the gap between the third seal 203 and the handle shell 10. The material of the third seal 203 includes but is not limited to elastic and flexible materials such as rubber, silicone or resin. The third seal 203 can prevent liquid and foam flowing down from the care piece from entering the handle shell 10 through the gap between the handle shell 10 and the output shaft 212 when the oral care device 100 is in working condition. At the same time, it can also prevent water vapor and dust from entering the handle shell 10 when the oral care device 100 is not in working condition, thereby preventing the internal structure of the oral care device 100 from being damp and rusted or causing the internal circuit of the oral care device 100 to short-circuit or even be damaged.

[0184] Referring to Figures 2 and 13, in some embodiments, the oral care device 100 further includes a circuit board 51 and a connecting line 53. The circuit board 51 is provided on the movement 20 and is electrically connected to the energy receiving module 40. A control module may be provided on the circuit board 51, which is capable of sending electrical signals to the energy receiving module 40 to control the opening and closing of the energy receiving module 40. The control module is also capable of receiving the electrical signals transmitted to the control module by the energy receiving module 40, so as to analyze the energy information obtained by the energy receiving module 40 to obtain image information, distance information, position information and other information related to the use of the oral care device 100. Along direction Y, the circuit board 51 and the energy receiving module 40 are respectively provided on opposite sides of the handle shell 10. In some embodiments, the circuit board 51 is provided on the first side 103 of the handle shell 10, and the energy receiving module 40 is provided on the second side 104 of the handle shell 10. In other embodiments, the circuit board 51 is provided on the second side 104, and the energy receiving module 40 is provided on the first side 103. One end of the connecting wire 53 is electrically connected to the circuit board 51, and the other end of the connecting wire 53 is electrically connected to the energy receiving module 40. The connecting wire 53 can electrically connect the circuit board 51 and the energy receiving module 40. When the energy receiving module 40 receives external energy, the energy receiving module 40 can convert the received external energy into an electrical signal and transmit the electrical signal to the circuit board 51 and the control module electrically connected to the circuit board 51 via the connecting wire 53, so as to analyze the electrical signal or control the operation mode of the energy receiving module 40.

[0185] The mounting bracket 29 can be used to mount the driver 21 to prevent the driver 21 from shaking inside the handle housing 10 and causing damage to the driver 21. The spacer 1105 disposed inside the handle housing 10 can also be provided with a threading hole 1107. One end of the connecting wire 53 can be directly or indirectly electrically connected to the circuit board 51. The other end of the connecting wire 53 can pass through the threading hole 1107 from the second cavity 1103 and be electrically connected to the energy receiving module 40.

[0186] Furthermore, in certain embodiments, a wire groove 291 is provided in the mounting frame 29, and the connecting wire 53 is provided in the wire groove 291 and is located between the driving member 21 and the inner wall of the wire groove 291. The wire groove 291 is used to fix the connecting wire 53 that passes through the mounting frame 29. On the one hand, the wire groove 291 can fix the relative positional relationship between the connecting wire 53 and the mounting frame 29. On the other hand, the wire groove 291 can also prevent excessive entanglement and friction between the driving member 21 and the connecting wire 53, thereby avoiding damage to the connecting wire 53. During the installation process, the connecting wire 53 and the driving member 21 can be placed in the mounting frame 29 first, and then the energy receiving module 40 can be installed on the mounting frame 29 and facing the energy transmission area 107 of the end shell portion 11, so as to make the installation of the oral care device 100 more convenient.

[0187] In some embodiments, the energy receiving module 40 is installed on the mounting bracket 29 to avoid direct contact with the driving member 21 and resonance, thereby avoiding affecting the energy receiving module 40's reception of at least part of the energy reflected by the brush head 30 and / or human body features outside the oral cavity. Along the direction Y, the energy receiving module 40 and the circuit board 51 are staggered with each other and / or along the extension direction X and / or along the direction Y, the energy receiving module 40 and the driving member 21 are staggered. When the energy receiving module 40 and the circuit board 51 are staggered with each other, the required width of the handle shell 10 in the direction Y is smaller, the overall size of the handle shell 10 is smaller, and space is saved. When the energy receiving module 40 and the driving member 21 are staggered, the energy receiving module 40 can avoid direct contact with the driving member 21, thereby avoiding inaccurate image information or distance position information obtained by the energy receiving module 40.

[0188] In the related art, oral care devices, such as electric toothbrushes, are now available on the market with energy receiving modules. These modules allow users to more comprehensively capture energy near the oral cavity and analyze it to obtain relevant and effective information. Therefore, how to configure the energy receiving module to ensure that it can obtain more effective information has become an urgent issue.

[0189] Please refer back to Figures 1 to 4. The oral care device 100 of the fourth aspect of the present application includes a handle 10A, a movement 20, a care piece and an energy receiving module 40. The handle 10A includes a handle shell 10, and the handle shell 10 is provided with a receiving space 111. The movement 20 is installed in the receiving space 111 and at least partially extends out of the handle shell 10. The care piece is installed on the portion of the movement 20 that extends from the handle shell 10. The energy receiving module 40 is provided on the movement 20 or the handle shell 10. In the direction of the central axis X1 of the handle shell 10, the outer contour of the projection of the energy receiving module 40 is located outside the outer contour of the projection of the care piece. The energy receiving module 40 is used to receive at least part of the energy reflected by the care piece and / or human features outside the oral cavity, and the energy received by the energy receiving module 40 does not include the energy reflected by the handle 10A.

[0190] Among them, the energy received by the energy receiving module 40 does not include the energy reflected by the handle 10A means that: the energy reflected outward from the area where the handle 10A can reflect energy will not directly enter the receiving range of the energy receiving module 40 or enter the receiving range of the energy receiving module 40 after multiple reflections. That is, the handle 10A will not block or affect the energy reception of the energy receiving module 40, and when a part of the handle 10A is located on the energy receiving path of the energy receiving module 40, the part does not affect the energy reception of the energy receiving module 40, and it falls within the energy range of the energy received by the energy receiving module 40 that does not include the energy reflected by the handle 10A as mentioned in this application. For example: when the energy receiving module 40 is capable of receiving light, and the handle 10A is provided with a translucent part and a non-translucent part, the light reflected by the non-translucent part of the handle 10A will not enter the receiving range of the energy receiving module 40, and the energy receiving module 40 will not be blocked by the non-translucent area of ​​the handle 10A. The light-transmitting portion of the handle 10A allows light to pass through and be received by the energy receiving module 40. The light-transmitting portion of the handle 10A will not block the receiving range of the energy receiving module. This solution also falls within the protection scope of this application.

[0191] Please refer to FIG. 1 to FIG. 4 , the oral care device 100 of the fourth aspect is substantially the same as the oral care device 100 of the first aspect, except that:

[0192] In certain embodiments, the outer contour of the projection of the energy receiving module 40 is located outside the outer contour of the projection of the care piece, and in the direction of the central axis of the handle shell 10, the distance between the center of the projection of the energy receiving module 40 and the outer contour of the projection of the care piece is greater than 2 mm, for example, the distance is 2.5 mm, 3 mm, 4.5 mm, 5.1 mm, 6.6 mm, 7.25 mm, 8.7 mm, 9.4 mm or 10 mm. In this way, the oral care device 100 can further enhance the effect of the elevated setting of the energy receiving module 40 by ensuring that the distance between the center of the projection of the energy receiving module 40 and the outer contour of the projection of the care piece in the direction of the central axis X1 of the handle shell 10 is not smaller, so as to reduce the obstruction of the energy receiving module 40 by the handle shell 10, thereby ensuring that the energy receiving module 40 can receive at least part of the energy reflected by the area of ​​the care piece that is farther away from the energy receiving module 40 and / or the human body features outside the oral cavity.

[0193] In some embodiments, the handle shell 10 includes an end shell 112 facing the care piece and a peripheral shell 116 connected to the end shell 112. The end shell 112 is provided with an energy-transmitting area 13 on the front side facing the care piece, and the energy receiving module 40 is opposite to the energy-transmitting area 13.

[0194] Specifically, the front side of the end shell 112 facing the brush head 30 is provided with an energy-transmitting area 13 for energy reflected by the brush head 30 or human features outside the oral cavity to pass through, and the energy receiving module 40 is opposite to the energy-transmitting area 13. When the energy receiving module 40 is working, part of the energy reflected by the brush head 30 or human features outside the oral cavity will be reflected to the energy-transmitting area 13, pass through the energy-transmitting area 13 and be received by the energy receiving module 40. The oral care device 100 can provide the energy-transmitting area 13 on the front side of the end shell 112 so that there is no other structure on the front side of the end shell 112 to block energy transmission except the brush head 30, thereby ensuring that among the part of the energy reflected by the brush head 30 or human features outside the oral cavity, the energy reflected in the direction toward the energy-transmitting area 13 can smoothly pass through the energy-transmitting area 13 and be received by the energy receiving module 40.

[0195] In some embodiments, in a direction perpendicular to the central axis X1 of the handle shell 10 , the outer contour dimension of the cross section of the end shell 112 close to the peripheral shell 116 is larger than the outer contour dimension of the cross section close to the nursing piece.

[0196] Specifically, it is understood that if the outer contour dimension of the cross-section of the end shell 112 near the peripheral shell 116 is smaller than the outer contour dimension of the cross-section near the brush head 30, then the side of the end shell 112 near the brush head 30 may also prevent the portion of energy reflected by the brush head 30 or human features outside the oral cavity, which is reflected toward the energy transmission area 13, from passing through the energy transmission area 13. Therefore, in a direction perpendicular to the central axis of the handle shell 10, the outer contour dimension of the cross-section of the end shell 112 near the peripheral shell 116 is larger than the outer contour dimension of the cross-section near the brush head 30.

[0197] There are multiple ways in which the outer contour dimensions of the cross section of the end shell 112 in the direction perpendicular to the central axis X1 of the handle shell 10 can change along the direction from the handle shell 10 to the brush head 30. In one embodiment, the outer contour dimensions of the cross section of the end shell 112 in the direction perpendicular to the central axis of the handle shell 10 gradually decreases along the direction from the handle shell 10 to the brush head 30. In another embodiment, the outer contour dimensions of the cross section of the end shell 112 in the direction perpendicular to the central axis of the handle shell 10 first gradually decrease along the direction from the handle shell 10 to the brush head 30, then the outer contour dimensions of the cross section of the end shell 112 remain unchanged, and then the outer contour dimensions of the cross section of the end shell 112 gradually decrease again. In yet another embodiment, the outer contour dimensions of the cross section of the end shell 112 in the direction perpendicular to the central axis of the handle shell 10 first gradually decrease along the direction from the handle shell 10 to the brush head 30, then the outer contour dimensions of the cross section of the end shell 112 remain larger, and then the outer contour dimensions of the cross section of the end shell 112 gradually decrease again. In this way, the oral care device 100 can be implemented through various embodiments so that in the direction perpendicular to the central axis of the handle shell 10, the outer contour dimension of the cross section of the end shell 112 on the side close to the handle shell 10 is larger than the outer contour dimension of the cross section on the side close to the brush head 30, so as to reduce the obstacles in the propagation path of the energy reflected by the brush head 30 or the human body features outside the oral cavity, and the energy reflected in the direction toward the energy transmission zone 13, thereby ensuring that the energy reflected by the brush head 30 or the human body features outside the oral cavity, and the energy reflected in the direction toward the energy transmission zone 13 can smoothly pass through the energy transmission zone 13 and be received by the energy receiving module 40.

[0198] Please refer to Figures 28 and 29. In some embodiments, the front side of the end shell 112 facing the nursing piece is provided with a non-energy-transparent area 14 connected to the energy-transparent area 13. The non-energy-transparent area 14 is located outside the energy receiving range of the energy receiving module 40.

[0199] Specifically, the front side of the end shell 112 facing the brush head 30 may also be provided with a non-energy-transmissive area 14 connected to the energy-transmissive area 13. The non-energy-transmissive area 14 may be made of materials such as plastic or silica. The non-energy-transmissive area 14 can be used to reduce the exposed area of ​​the internal structure of the oral care device 100 to improve the aesthetics of the oral care device 100.

[0200] Please refer to FIG. 31 . In certain embodiments, along the direction from the care piece to the handle shell 10 , the outer contour size of the cross section of the brush rod in the direction perpendicular to the central axis of the handle shell 10 gradually increases.

[0201] Specifically, along the direction from the brush head 30 to the handle shell 10, the outer contour size of the cross section of the brush rod 31 in the direction perpendicular to the central axis X1 of the handle shell 10 gradually increases, so that the closer the area of ​​the brush rod 31 is to the bristles 33, the smaller the outer contour size of the cross section. Therefore, within the energy receiving range, the closer the brush rod 31 is to the bristles 33, the less influence the energy receiving module 40 has on the energy receiving. The energy reflected by the bristles 33 and the area near the bristles 33 can smoothly reach the energy transmission area 13 and be received by the energy receiving module 40.

[0202] At this point, the oral care device 100 can also set a threshold based on the blocking effect of the outer contour dimensions of the cross-section of the brush rod 31 in a direction perpendicular to the central axis of the handle housing 10 on energy propagation. Once the outer contour dimensions of the cross-section of the brush rod 31 in a direction perpendicular to the central axis X1 of the handle housing 10 exceed the threshold, it can be considered that the corresponding position of the cross-section in the brush rod 31 will block energy from being absorbed by the energy receiving module 40. Therefore, in addition to setting the maximum cross-section of the brush rod 31 within the energy receiving range of the energy receiving module 40, the oral care device 100 can also set all cross-sections of the brush rod 31 that are larger than the preset threshold outside the energy receiving range of the energy receiving module 40, thereby reducing the impact of the larger cross-sectional area of ​​the brush rod 31 on the energy receiving module 40.

[0203] In some embodiments, the energy receiving module 40 is located on the central axis of the protrusion 12 in a direction perpendicular to and away from the central axis of the handle shell 10, and a first curved surface 1201 is provided on the side of the protrusion 12 facing the care piece. The first curved surface 1201 of the protrusion 12 here is the same as the first curved surface 1901 of the protrusion 19 in the oral care device 100 of the second aspect, and will not be repeated here.

[0204] In some embodiments, the energy receiving module 40 is mounted on the peripheral shell 116. When the energy receiving module 40 is mounted on the peripheral shell 116, the peripheral shell 116 is provided with a mounting plate 1101, and the mounting plate 1101 is provided with a first mounting groove 101, the first mounting groove 101 is recessed from the mounting plate 1101 toward the direction close to the movement 20 component, and the energy receiving module 40 is at least partially disposed in the first mounting groove 101. In other embodiments, the energy receiving module 40 is mounted on the end shell 112. When the energy receiving module 40 is mounted on the end shell 112, the end shell 112 is provided with a second mounting groove 102, the second mounting groove 102 is recessed from the inner wall of the end shell 112 toward the direction close to the brush head 30, and the energy receiving module 40 is at least partially disposed in the second mounting groove 102. The first mounting groove 101 and the second mounting groove 102 are both structures for installing the energy receiving module 40. When the energy receiving module 40 is arranged in the first mounting groove 101 and the second mounting groove 102, the position of the energy receiving module 40 in the handle shell 10 is more stable, and it is not easy to fall off from the handle shell 10 or collide with other structures during use, thereby avoiding damage to the energy receiving module 40.

[0205] In some embodiments, the cover 127 includes a first portion 1271 and a second portion 1273 connected to each other, the first portion 1271 is connected to the peripheral shell 116, and the second portion 1273 is connected to the end shell 112, and is bent toward the center axis of the handle shell 10 compared to the first portion 1271. In the direction from the care piece to the movement 20, the second portion 1273 gradually moves away from the center axis of the handle shell 10, and the second portion 1273 is provided with an energy-transmitting area 13.

[0206] Specifically, the second portion 1273 is bent toward the central axis X1 of the handle housing 10 compared to the first portion 1271. Furthermore, in the direction from the brush head 30 to the movement 20, the second portion 1273 gradually moves away from the central axis X1 of the handle housing 10. That is, the distance between the second portion 1273 and the central axis of the handle housing 10 gradually increases, giving the second portion 1273 an inclined appearance. When liquid flows from the brush head 30 to the cover plate 127, the inclined configuration of the second portion 1273 serves as a diversion device, directing the liquid toward the outer periphery of the second portion 1273, reducing the adhesion of liquid or foam to the second portion 1273, and thereby reducing the impact of the liquid or foam on the energy reception by the energy receiving module 40.

[0207] At the same time, the second part 1273 is also provided with an energy-transmitting area 13, so that the energy reflected by the brush head 30 or the human body features outside the mouth can smoothly pass through the cover 127 through the energy-transmitting area 13 and be received by the energy receiving module 40, thereby ensuring the normal operation of the energy receiving module 40.

[0208] In some embodiments, the cover plate 127 protrudes in a direction away from the central axis of the handle housing 10 compared to the peripheral housing 116 .

[0209] In the direction of the central axis X1, the distance between the highest point of the outer contour of the first part 1271 and the central axis X1 may be greater than the distance between the outer contour of the surrounding shell 116 and the central axis X1, so that the cover plate 127 protrudes in the direction away from the central axis X1 compared to the surrounding shell 116. On the one hand, the protruding cover plate 127 is used to reduce the adhesion of foam or liquid on the cover plate 127 to ensure the normal operation of the energy receiving module 40. On the other hand, the protruding cover plate 127 is used to increase the spatial position of the installation space 121 and reduce the restrictions on the installation angle of the energy receiving module 40 (that is, the angle between the central axis X2 of the energy receiving module 40 and the central axis X1 of the movement 20), thereby ensuring that in the direction of the central axis of the handle shell 10, the outer contour of the projection of the energy receiving module 40 can be located outside the outer contour of the projection of the brush head 30.

[0210] There are multiple ways to install the cover plate 127. In one embodiment, in a direction perpendicular to the central axis X1, the distance between the inner circumference of the first portion 1271 and the central axis X1 is less than the distance between the inner circumference of the peripheral shell 116 and the central axis X1, giving the effect that the peripheral shell 116 partially wraps around the first portion 1271. This allows the cover plate 127 to have a smaller protrusion height than the peripheral shell 116 in a direction away from the central axis X1, thereby ensuring that the overall volume of the oral care device 100 is smaller. In another embodiment, in a direction perpendicular to the central axis X1, the distance between the inner circumference of the first portion 1271 and the central axis X1 is greater than or equal to the distance between the inner circumference of the peripheral shell 116 and the central axis X1, thereby maximizing the volume of the installation space 121, reducing the restrictions on the installation angle of the energy receiving module 40, and ensuring that the energy receiving module 40 can receive energy reflected by the brush head 30 or human features outside the oral cavity.

[0211] In some embodiments, along the extension direction of the central axis X1, the distance between the energy receiving module 40 and the second portion 1273 of the cover plate 127 is no more than 10 mm, so that the range in which the energy receiving module 40 is blocked by the second portion 1273 of the cover plate 127 is smaller or even not blocked at all, so that the energy receiving module 40 receives more energy.

[0212] In one embodiment, the energy receiving module 40 is mounted on the core 20. The core 20 includes a mounting frame 29, which is substantially the same as the mounting frame 29 in the oral care device 100 of the second aspect and will not be described in detail herein.

[0213] In another embodiment, the energy receiving module 40 is mounted on the cover plate 127. A mounting position is provided on the cover plate 127, and the energy receiving module 40 is mounted on the mounting position on the cover plate 127, corresponding to the energy transmission area 13, so as to ensure the normal operation of the energy receiving module 40 while completing the fixed installation of the energy receiving module 40. At this time, the oral care device 100 can install the energy receiving module 40 and the internal device of the oral care device 100 (such as a circuit board) separately. Specifically, the oral care device 100 can use the through hole 114 to install the internal device of the oral care device 100. When installing the internal device of the oral care device 100, the cover plate 127 will not be installed on the through hole 114. Therefore, the energy receiving module 40 can also be installed on the cover plate 127 separately at this time. After the other devices of the oral care device 100 are installed and the energy receiving module 40 has been installed on the mounting position on the cover plate 127, the cover plate 127 is installed on the through hole 114. In this way, the oral care device 100 can use the through hole 114 to improve the installation convenience of the internal device of the oral care device 100, and use the installation position provided on the cover plate 127 to improve the installation convenience of the energy receiving module 40, thereby making the installation convenience of the oral care device 100 higher.

[0214] In some embodiments, along the direction of the central axis of the handle shell 10, the energy receiving range of the energy receiving module 40 includes an intersecting first edge X21 and a second edge X22, and the first edge X21 and the second edge X22 together form the energy receiving range; the angle between the first edge X21 and the central axis X2 of the energy receiving module 40 along the central axis of the handle shell 10 is in the range of [20°, 60°]; the angle between the second edge X22 and the central axis along the central axis of the handle shell 10 is in the range of [15°, 45°]. In this way, the oral care device 100 can ensure that the energy receiving range of the energy receiving module 40 needs to cover at least the free ends of the bristles 33 and / or the side of the brush plate 35 facing away from the bristles 33 by setting the angle between the first edge X21 and the central axis X2 of the energy receiving module 40, and the angle between the second edge X22 and the central axis X2 of the energy receiving module 40, thereby ensuring that the oral care device 100 can obtain the required information.

[0215] In certain embodiments, when the central axis X2 of the energy receiving module 40 extends parallel to the central axis X1 of the handle housing 10, the distance between the central axis X2 and the central axis X1 is greater than 5 mm. In this case, the energy receiving module 40 is aligned with the energy-transmitting area 13 on the end housing 112, and the energy receiving module 40 is less obstructed by the brush head 30 and the non-energy-transmitting area 14, or even not obstructed at all. Therefore, the energy receiving module 40 receives more energy and acquires more image information, position information, or distance information.

[0216] In certain embodiments, the oral care device 100 further includes a seal 203 . The seal 203 is substantially the same as the first seal 203 in the oral care device 100 of the third aspect, and will not be described in detail herein.

[0217] As people pay more and more attention to oral problems, oral care devices are becoming more and more popular among consumers. In order to further enhance the care function of oral care devices, an energy receiving module is usually provided on the oral care device. The oral care device provided with the energy receiving module can facilitate users to observe and clean the oral cavity more comprehensively. However, in the related art, the energy receiving module in the oral care device is prone to damage during the assembly process. In order to improve this problem, an embodiment of the present application provides an oral care device 100 (shown in FIG19 ).

[0218] Please refer to Figures 19 and 20. The oral care device 100 of the fifth aspect of the present application includes a handle 10A, a movement 20, a care piece 30 and an energy receiving module 40. The handle 10A includes a handle shell 10 and a cover plate 13. The handle shell 10 is provided with a through hole 111, and the cover plate 13 covers the through hole 111. The movement 20 is installed in the handle shell 10 and partially extends out of the handle shell 10. The care piece 30 is installed on the part of the movement 20 that extends from the handle shell 10. The energy receiving module 40 is arranged in the handle shell 10 through the through hole 111 and is electrically connected to the movement 20. The energy receiving module 40 corresponds to the cover plate 13. The energy receiving module 40 is used to receive energy at least partially reflected back by the care piece 30 and / or human body features outside the oral cavity.

[0219] Specifically, the explanations of the oral care device 100, the care piece 30 and the energy receiving module 40 are the same as those in the first to fourth aspects above, and are not repeated here.

[0220] The surface of the handle 10A may be provided with functional modules such as a control area 19 and a display area to facilitate user operation and use of the various functions of the oral care device 100. The handle 10A is generally cylindrical in structure to provide a comfortable grip for the user. The handle 10A may also have an anti-slip structure to prevent the oral care device 100 from slipping during use.

[0221] The handle shell 10 is a structure for the user to hold, and the handle shell 10 is also used to load other components, such as the loading movement 20 and the energy receiving module 40 and other structures. The material of the handle shell 10 can be plastic or rubber, etc. The handle 10A made of plastic or rubber material is light in weight and easy to pick up and put. The through hole 111 is a spatial structure for the energy receiving module 40 to enter through the through hole 111 and be installed in the handle shell 10. The opening shape of the through hole 111 can be, but is not limited to, circular, elliptical, triangular or quadrilateral, etc. The opening area of ​​the through hole 111 is at least larger than the cross-sectional area of ​​the energy receiving module 40.

[0222] The cover plate 13 is a structure used to protect the energy receiving module 40 together with the handle shell 10. The cover plate 13 is detachably connected to the handle shell 10, wherein the detachable installation method includes but is not limited to threaded connection, screw connection or snap connection, etc. In one embodiment, after the energy receiving module 40 is installed into the handle shell 10 through the through hole 111 and electrically connected to the movement 20, the cover plate 13 is connected to the handle shell 10. In another embodiment, the energy receiving module 40 may be connected to the cover plate 13 first, and then the energy receiving module 40 and the cover plate 13 are connected to the handle shell 10 together. The material of the cover plate 13 may be plastic, rubber, etc. The material of the cover plate 13 may be the same as or different from the material of the handle shell 10.

[0223] Referring to Figure 20 , when the oral care device 100 is an electric toothbrush, the care component 30 is a brush head. The movement 20 is a structure for driving the brush head to vibrate. When the oral care device 100 is activated, the movement 20 is energized, driving the brush head connected to the movement 20 to vibrate, thereby cleaning the teeth. The frequency at which the movement 20 drives the brush head to vibrate can be, but is not limited to, 2000, 4000, or 8000 vibrations per minute.

[0224] The oral care device 100 of the embodiment of the present application has a through hole 111 and a cover plate 13 provided on the handle housing 10. During assembly, the movement 20 can be assembled first, and then the energy receiving module 40 and the cover plate 13 can be installed on the handle housing 10 through the through hole 111. The energy receiving module 40 of the embodiment of the present application is not easily damaged during the assembly process.

[0225] Please refer to Figures 20 and 21. In some examples, the central axis of the energy receiving module 40 is parallel to the central axis of the movement 20. The viewing angle range α of the energy receiving module 40 can be, but is not limited to, 45°, 50°, or 60°, etc. When the central axis of the energy receiving module 40 is parallel to the central axis of the movement 20, the care component 30 can be within the viewing angle range of the energy receiving module 40. During the brushing process, the energy receiving module 40 can capture images of the care component 30 and / or human features outside the oral cavity, and determine the position of the tooth area currently being brushed based on the position of the care component 30 and / or human features outside the oral cavity, thereby obtaining the operating time of the care component 30 in each tooth area.

[0226] In other examples, the central axis of the energy receiving module 40 intersects the central axis of the movement 20 at the care piece 30. In this case, the main optical axis (central axis) of the energy receiving module 40 can be aligned with the bristles 33 of the care piece 30, and the energy receiving module 40 can obtain a large amount of image information on both sides of the care piece 30.

[0227] Referring to Figure 21 , in certain embodiments, the distance L between the energy receiving module 40 and the side of the cover plate 13 closest to the care component 30, as the handle 10A points toward the care component 30, is ≤ 5 mm. In this case, the handle 10A does not obstruct the energy receiving module 40's field of view, allowing the care component 30 to be completely within its viewing angle, allowing the energy receiving module 40 to capture an image of the care component 30 with good accuracy.

[0228] Please refer to Figures 21 and 22. Furthermore, the handle 10A may also include a partition 15, which is arranged at the through hole 111 and forms an installation space 17 together with the cover 13. The energy receiving module 40 is installed on the partition 15 and / or the cover 13 and is located in the installation space 17. The movement 20 is arranged outside the installation space 17.

[0229] The partition 15 is a structure used to form an installation space 17 together with the cover 13. The partition 15 and the handle housing 10 can be integral or separate structures. When the partition 15 and the handle housing 10 are integral, the partition 15 and the handle housing 10 can be integrally formed. When the partition 15 and the handle housing 10 are separate structures, the partition 15 can be detachably or non-detachably mounted to the handle housing 10.

[0230] In one example, the energy receiving module 40 is first mounted on the partition 15, and then the cover 13 is connected to the partition 15 to jointly protect the energy receiving module 40. In another example, the energy receiving module 40 is first mounted on the cover 13, and then the cover 13 and the energy receiving module 40 are jointly connected to the partition 15. The cover 13 and the partition 15 can jointly protect the energy receiving module 40.

[0231] The installation space 17 is a sealed space, and the energy receiving module 40 is installed in the installation space 17, which can prevent external moisture from entering the installation space 17 and affecting the shooting quality of the energy receiving module 40. During the operation of the oral care device, the care parts will be subjected to pressure. The pressure of the care parts is transmitted to the movement, and the movement will move. During the movement of the movement, the energy receiving module may be squeezed, which may cause the energy receiving module to shift or even be damaged. The partition 15 separates the energy receiving module 40 from the movement 20, and the movement 20 will not interfere with the energy receiving module 40 during operation.

[0232] Referring to Figure 23 , in certain embodiments, a light strip 151 is provided on the partition 15 , and the portion of the cover 13 corresponding to the light strip 151 is translucent. The different states of the light strip 151 correspond to different operating states of the energy receiving module 40 . By observing the state of the light strip 151, the user can intuitively understand the current operating status of the energy receiving module 40, providing a better user experience. The light strip 151 also enhances the aesthetics of the oral care device 100 .

[0233] In one example, the light strip 151 can emit light of different colors when powered on, and the different colors of light can correspond to different working states of the energy receiving module 40. For example, when the energy receiving module 40 starts working (shooting), the light strip 151 can emit green light. When the energy receiving module 40 works abnormally (is damaged), the light strip 151 can emit red light. When the energy receiving module 40 is not working, the light strip 151 can emit yellow light or no light. The user can observe the different colors of the light strip 151 through the light-transmitting portion on the cover 13, thereby knowing the working state of the energy receiving module 40 at this moment.

[0234] In another example, the light strip 151 may have different flashing frequencies after being powered on, and the different flashing frequencies of the light strip 151 may correspond to different working states of the energy receiving module 40. For example, when the energy receiving module 40 starts working (shooting), the flashing frequency of the light strip 151 is faster (for example, 10 times / min). When the energy receiving module 40 works abnormally (is damaged), the flashing frequency of the light strip 151 is very fast (for example, 30 times / min). When the energy receiving module 40 is not working, the light strip 151 is in a constantly bright or constantly dark state. The user can observe the different flashing frequencies of the light strip 151 through the light-transmitting portion on the cover 13, thereby knowing the working state of the energy receiving module 40 at this moment.

[0235] Please refer to Figure 23. In some embodiments, the portion of the cover 13 corresponding to the light strip 151 is annular. The annular portion 139 on the cover 13 is light-transmissive, and the annular portion 139 is the light-transmissive portion. The material of the annular portion 139 can be, but is not limited to, glass, organic glass, acrylic or a light-transmissive film, so that the user can see the luminous state of the light strip 151 through the annular portion 139. At this time, the light strip 151 can be in the shape of a strip, a ring or other shapes. Preferably, the light strip 151 is also an annular structure, and the annular light strip 151 corresponds to the annular portion 139 of the cover 13, so that the user can see the annular light.

[0236] Please continue to refer to Figure 23. Further, in some embodiments, the partition 15 is a ring-shaped structure with a hollow center, and the energy receiving module 40 corresponds to the non-hollow area of ​​the partition 15. At this time, an installation space 17 is formed between the non-hollow area of ​​the partition 15 and the cover plate 13, the energy receiving module 40 is located in the installation space 17, and the movement 20 is located outside the installation space 17. When the partition 15 is a ring-shaped structure with a hollow center, the electrical connection between the energy receiving module 40 and the movement 20 is relatively simple. The energy receiving module 40 and the movement 20 are electrically connected through an electrical connector, and the electrical connector can be passed through the hollow area of ​​the partition 15 to electrically connect the energy receiving module 40 and the movement 20. At this time, the weight of the partition 15 is relatively light, so that the weight of the oral care device 100 is relatively light, which is convenient for the user to pick up and put, and the oral care device 100 feels better when the user picks up and puts it. The partition 15 uses less material, which can save material.

[0237] Referring to Figures 20 and 21 , in certain embodiments, the partition 15 protrudes relative to the inner side of the handle housing 10, toward the central axis of the handle housing 10. The provision of the partition 15 fully utilizes the interior space of the handle housing 10, preventing the cover 13 from protruding excessively relative to the outer wall of the handle housing 10 after the energy receiving module 40 is installed between the partition 15 and the cover 13, thereby improving the aesthetics of the oral care device 100.

[0238] Please refer to FIG. 23 . In some embodiments, when the energy receiving module 40 is installed on the partition 15 , a limiting member 153 is provided on the partition 15 . The limiting member 153 is used to limit the circumferential and / or axial position of the energy receiving module 40 .

[0239] Specifically, the oral care device 100 generates vibrations during operation. Without the stopper 153 to limit the energy receiving module 40, the energy receiving module 40 would move relative to the partition 15, causing jitter in the images captured by the energy receiving module 40. The energy receiving module 40 is easily bumped during movement, which may cause damage to the energy receiving module 40.

[0240] The limiter 153 is a structure for limiting the position of the energy receiving module 40. The limiter 153 is integrally formed with the partition 15, or the limiter 153 is detachably or non-detachably mounted on the side of the partition 15 close to the cover plate 13. In one embodiment, the limiter 153 limits the circumferential direction of the energy receiving module 40. At this time, the energy receiving module 40 will not move circumferentially relative to the partition 15, that is, the energy receiving module 40 will not move in a plane perpendicular to the central axis of the energy receiving module 40. In another example, the limiter 153 limits the axial direction of the energy receiving module 40. At this time, the energy receiving module 40 will not move axially relative to the partition 15, that is, the energy receiving module 40 will not move up and down along the central axis of the energy receiving module 40. In another example, the limiter 153 limits both the circumferential and axial directions of the energy receiving module 40. At this time, the energy receiving module 40 does not move in a plane perpendicular to the central axis of the energy receiving module 40, and the energy receiving module 40 does not move up and down along the central axis of the energy receiving module 40. The position limiting member 153 has a good effect of limiting the position of the energy receiving module 40.

[0241] Referring to Figures 21 to 23 , in certain embodiments, the partition 15 is provided with a through-hole 155 . The movement 20 includes a driver 21 and a first circuit board 22 located within the handle housing 10 . The output shaft 212 of the driver 21 partially extends outside the handle housing 10 , and the brush rod 31 is connected to the output shaft 212 . The first circuit board 22 is located on one side of the driver 21 , and the energy receiving module 40 is electrically connected to the first circuit board 22 via the first conductive member 24 extending through the through-hole 155 .

[0242] Specifically, the output shaft 212 is used to connect the driving member 21 and the brush rod 31, and transmit the power of the driving member 21 to the brush rod 31, thereby vibrating the brush rod 31. When the brush rod 31 vibrates, the bristles 33 can effectively clean the teeth.

[0243] The first circuit board 22 is located on the side of the driver 21 near the partition 15. The first circuit board 22 is an adapter board that electrically connects the energy receiving module 40 to the second circuit board 25 (main control board) of the movement 20. The first circuit board 22 is electrically connected to the energy receiving module 40 via the first conductive member 24. Simultaneously, the first circuit board 22 is electrically connected to the second circuit board 25, thereby electrically connecting the energy receiving module 40 and the second circuit board 25.

[0244] The first conductive member 24 electrically connects the energy receiving module 40 and the first circuit board 22 to enable electrical conduction between the energy receiving module 40 and the first circuit board 22. The first conductive member 24 can be, but is not limited to, a wire, a flexible circuit board, solder, or a pin. In the present application, the first conductive member 24 is a wire. The wire passes through the through hole 155 to electrically connect the energy receiving module 40 and the first circuit board 22. When the energy receiving module 40 is installed on the partition 15, the distance between the energy receiving module 40 and the first circuit board 22 is relatively close. In this case, the wire can be shorter, which can save wire material.

[0245] The non-hollowed-out area of ​​the partition 15 is provided with a perforation 155. The shape of the perforation 155 can be, but is not limited to, circular, elliptical, triangular, or quadrilateral. The area of ​​the perforation 155 is greater than or equal to the cross-sectional area of ​​the first conductive member 24. The first conductive member 24 is provided with the perforation 155 to connect the energy receiving module 40 and the first circuit board 22. The provision of the perforation 155 facilitates the electrical connection between the energy receiving module 40 and the first circuit board 22.

[0246] Please refer to FIG. 21 . In some embodiments, there is a gap between the first circuit board 22 and the partition 15 . In a direction perpendicular to the center line of the handle housing 10 , a width D of the gap is greater than 0.5 mm.

[0247] Referring to Figures 19, 21, and 22, in certain embodiments, the handle housing 10 is provided with a control area 19, the driver 21 includes a first side 213 and a second side 215 that are opposite to each other, and a first circuit board 22 is disposed on the second side 215 of the driver 21. The movement 20 also includes a second circuit board 25 located within the handle housing 10. The second circuit board 25 is disposed on the first side 213 of the driver 21 and corresponds to the control area 19. The second circuit board 25 is electrically connected to the first circuit board 22 via a second conductive member 26. The control area 19 herein is identical to the control area 15 described above and will not be further described here.

[0248] The second side 215 of the driver 21 is the side closest to the partition 15, and the first side 213 of the driver 21 is the side away from the partition 15. The second circuit board 25 is the main control board and can be used to control the operating state of the movement 20 and the operating state of the energy receiving module 40. The second circuit board 25 is electrically connected to the first circuit board 22 via the second conductive member 26. The second circuit board 25 is connected to the energy receiving module 40 via the first conductive member 24. This electrically connects the second circuit board 25 and the energy receiving module 40, allowing the second circuit board 25 to control the operating state of the energy receiving module 40.

[0249] Please refer to Figure 21. The second conductive member 26 is a structure for electrically connecting the first circuit board 22 and the second circuit board 25. The second conductive member 26 can be, but is not limited to, a wire, a flexible circuit board, solder or a pin. In the present application, the second conductive member 26 is a wire. The movement 20 also includes a mounting member 29, which is arranged around the driving member 21. The mounting member 29 is used to install and fix the driving member 21. The first circuit board 22 and the second circuit board 25 are both arranged in the gap between the mounting member 29 and the handle shell 10. Preferably, the mounting member 29 is provided with a through hole 291. The second conductive member 26 passes through the through hole 291 (the second conductive member 26 passes through the gap between the mounting member 29 and the driving member 21) to electrically connect the first circuit board 22 and the second circuit board 25. If the mounting member 29 does not have a through hole 291, the second conductive member 26 needs to go around the outer side surface of the mounting member 29 (the side of the mounting member 29 close to the side wall of the handle shell 10) to electrically connect the first circuit board 22 and the second circuit board 25, but there may be no space between the outer side surface of the mounting member 29 and the side wall of the handle shell 10 for the second conductive member 26 to pass through. In addition, the first circuit board 22 and the second circuit board 25 cannot be electrically connected by plugging or welding. Therefore, it is the best way for the second conductive member 26 to pass through the through hole to electrically connect the first circuit board 22 and the second circuit board 25. At this time, the stroke of the second conductive member 26 is shorter, so the second conductive member 26 can be set shorter, which can save the material of the second conductive member 26.

[0250] The control area 19 is located on a first side 213 of the handle housing 10 near the driver 21, and the energy receiving module 40 is located on a second side 215 of the handle housing 10 near the driver 21, thereby placing the control area 19 and the energy receiving module 40 on opposite sides of the handle housing 10. When a user holds handle 10A and brushes their teeth, the side of the control area 19 is typically closer to the ground than the side of the energy receiving module 40. This allows water and foam to flow toward the control area 19 during brushing, thus preventing the energy receiving module 40 from being affected by the water and foam.

[0251] Please refer to Figures 22 and 23. In some embodiments, a buffer pad 131 is provided on the side of the cover plate 13 and / or the energy receiving module 40 facing the cover plate 13. The buffer pad 131 is used to buffer the contact force between the cover plate 13 and the energy receiving module 40.

[0252] The cushion 131 is positioned between the cover plate 13 and the energy receiving module 40. During assembly, the cushion 131 cushions any collisions between the energy receiving module 40 and the cover plate 13, preventing damage to the energy receiving module 40. After the energy receiving module 40 and the cover plate 13 are assembled with the handle housing 10, the cushion 131 is squeezed between the two. This helps limit the movement of the energy receiving module 40, ensuring a more secure installation.

[0253] The material of the buffer pad 131 can be, but is not limited to, foam, sponge, rubber, and silicone. In one example, the buffer pad 131 can be provided on the side of the cover plate 13 facing the partition 15, the position of the buffer pad 131 corresponds to the position of the energy receiving module 40, and the area of ​​the buffer pad 131 is at least larger than the cross-sectional area of ​​the energy receiving module 40. In this case, the buffer pad 131 has a better buffering effect on the contact force between the cover plate 13 and the energy receiving module 40. In another example, the buffer pad 131 can be provided on the side of the energy receiving module 40 facing the cover plate 13. The area of ​​the buffer pad 131 is at least larger than the cross-sectional area of ​​the energy receiving module 40. In this case, the buffer pad 131 has a better buffering effect on the contact force between the cover plate 13 and the energy receiving module 40. In another example, the buffer pad 131 is provided on the side of the cover plate 13 facing the partition 15, and the buffer pad 131 is also provided on the side of the energy receiving module 40 facing the cover plate 13. At this time, the buffer pad 131 has a better buffering effect on the contact force between the cover plate 13 and the energy receiving module 40 .

[0254] 19 to 21 , in certain embodiments, the handle housing 10 includes a peripheral housing portion 113 and an end housing portion 115 that are connected to each other. The driver 21 is housed within the peripheral housing portion 113, and the output shaft 212 extends from the end housing portion 115. The cover plate 13 extends to the end housing portion 115 and forms at least a portion of the end housing portion 115. The cover plate 13 is provided with an energy-transmitting area 137 on at least the portion of the cover plate 13 that forms the end housing portion 115.

[0255] The peripheral shell portion 113 and the end shell portion 115 are the same as the peripheral shell portion 13 and the end shell portion 11 in the oral care device 100 of the second aspect, and are not described in detail.

[0256] At least part of the cover plate 13 is provided with an energy-transmitting area 137, and the energy-transmitting area 137 is used for light, electromagnetic waves, ultrasonic waves or particle beams to pass through the energy-transmitting area 137. This application is explained by taking the energy-transmitting area 137 being able to transmit light as an example. When the energy-transmitting area 137 is able to transmit light, the energy-transmitting area 137 can be a light-transmitting area. The energy-transmitting area 137 corresponds to the position of the energy receiving module 40. The cover plate 13 and the end shell portion 115 do not block the energy receiving module 40, and the energy receiving module 40 can capture images through the energy-transmitting area 137. The material of the energy-transmitting area 137 (light-transmitting area) can be, but is not limited to, glass, organic glass, acrylic or light-transmitting film. The area of ​​the energy-transmitting area 137 is at least larger than the viewing angle range of the energy receiving module 40 on the cover plate 13. Preferably, the area of ​​the energy-transmitting area 137 is the same as the viewing angle range of the energy receiving module 40 on the cover plate 13. At this time, the energy receiving module 40 can capture images through the energy transparent area 137, and the non-energy transparent area 137 of the cover plate 13 can block other positions of the energy receiving module 40, so the oral care device 100 has better aesthetics.

[0257] Please refer to FIG. 20 and FIG. 21 . In some embodiments, the cover plate 13 protrudes in a direction away from the central axis of the handle housing 10 compared to the peripheral housing portion 113 .

[0258] 21 and 23 , in some embodiments, an energy-transmitting area 137 is provided on the cover plate 13 or the handle housing 10. The energy-transmitting area 137 is used to allow the energy receiving module 40 to capture the graphic code of the care component 30 and images of the care component 30 and / or the face through the energy-transmitting area 137.

[0259] In one embodiment, the movement 20 includes a mounting bracket 27 positioned within the through-hole 111. The mounting bracket 27 defines a mounting position 271, and the energy receiving module 40 is mounted within the mounting position 271, corresponding to the energy-transmitting area 137. In this embodiment, the handle 10A does not include a partition 15. The mounting bracket 27 can extend from the mounting member 29, extending through the through-hole 111. The energy receiving module 40 is first mounted within the mounting position 271 of the movement 20, and the cover 13 is then connected to the handle housing 10.

[0260] In another embodiment, the cover plate 13 is provided with a mounting position 271, and the energy receiving module 40 is mounted on the mounting position 271 on the cover plate 13, corresponding to the energy transmission area 137. The mounting position 271 can be integrally formed with the cover plate 13, or the mounting position 271 can be removably or non-removably mounted on the cover plate 13. In this case, the energy receiving module 40 is first mounted on the mounting position 271 on the cover plate 13, and then the energy receiving module 40 and the cover plate 13 are connected to the handle housing 10.

[0261] In other embodiments, the handle 10A may include a partition 15, and the mounting position 271 may be located in a non-hollowed area of ​​the partition 15. The mounting position 271 may be integrally formed with the partition 15, or the mounting position 271 may be removably or non-removably mounted to the partition 15. In this case, the energy receiving module 40 is first mounted to the mounting position 271 of the partition 15, and then the cover 13 is connected to the handle housing 10.

[0262] The mounting position 271 is used to mount the energy receiving module 40. The mounting position 271 and the stopper 153 jointly mount and stop the energy receiving module 40, ensuring that the energy receiving module 40 is securely mounted in the mounting space 17 and preventing collisions between the energy receiving module 40 and the cover 13 or the handle housing 10. Furthermore, the mounting position 271 and the stopper 153 ensure that the energy receiving module 40 always aligns with the energy-transmitting area 137, preventing the energy receiving module 40 from moving and being blocked by the non-energy-transmitting area 137, thereby preventing the camera from being unable to capture images.

[0263] Please refer to FIG. 23 . In some embodiments, the energy receiving module 40 includes an imaging module. The imaging module faces the nursing component 30 and is used to acquire images.

[0264] 19 and 23 , in some embodiments, the oral care device 100 further includes a reminder 70. The reminder 70 is the same as the reminder 70 in the oral care device 100 in the first to fourth aspects, and will not be described in detail herein.

[0265] 19 and 23 , in some embodiments, the oral care device 100 further includes a display 80. The display 80 is the same as the display 80 of the oral care device 100 in the first to fourth aspects and will not be described in detail herein.

[0266] In related art, a camera is installed in the brush head of an electric toothbrush. By displaying the pictures taken by the camera, users can realize the function of watching while brushing, so that users can better understand their brushing status and thus improve oral care. On the one hand, installing a camera on the brush head will make the brush head structure more complicated, and the brush head is a consumable material, which increases the replacement cost. On the other hand, the camera and the brush head are inserted into the user's mouth, and the camera is easily blocked by saliva or foam, which makes it difficult for the camera to obtain clear images.

[0267] As shown in Figures 24-27, the electric toothbrush 100 of the sixth aspect of the present application includes a brush handle assembly 110, a brush head 120 and a camera 130.

[0268] As shown in Figures 26-27, the brush handle assembly 110 includes a brush handle 111 and a core 112.

[0269] The brush handle 111 accommodates the brush core 112 and is easy for the user to hold. The brush handle 111 is formed with a mounting cavity 111a and a light inlet 111b connected to the mounting cavity 111a. The brush handle 111 can be made of plastic, making it lightweight and easier to hold. At the same time, the brush handle 111 can be integrally formed, providing good waterproof performance and can be formed into complex shapes.

[0270] The movement 112 includes an output shaft 1121 . The movement 112 is installed in the installation cavity 111 a and the output shaft 1121 extends out of the installation cavity 111 a . That is, the output shaft 1121 passes from the inside of the brush handle 111 to the outside of the brush handle 111 to connect with the brush head 120 .

[0271] The brush head 120 is connected to one end of the output shaft 1121 extending out of the mounting cavity 111a. The output shaft 1121 of the movement 112 can generate high-frequency reciprocating vibrations, driving the brush head 120 to generate high-frequency reciprocating vibrations. When the brush head 120 contacts the user's teeth, the high-frequency reciprocating vibrating brush head 120 can peel off food residues on the user's teeth or tongue, thereby achieving the purpose of cleaning the oral cavity.

[0272] The camera 130 is connected to the movement 112 or the brush handle 111. For example, the camera 130 is located on the brush handle 111, or the camera 130 is located on the movement 112. The connection between the camera 130 and the movement 112 or the brush handle 111 can be achieved by snapping, bonding, welding, etc. The camera 130 is positioned corresponding to the light inlet 111b, allowing external light to enter the camera 130 through the light inlet 111b, and the camera 130 can capture images. The camera 130 is the same as the energy receiving module described in the first to fifth aspects, and will not be further explained here.

[0273] The light inlet 111b is formed on the outer surface of the brush handle 111 and needs to be waterproofed to prevent water from entering the installation cavity 111a of the brush handle 111 and affecting the normal operation of electronic components such as the camera 130 and the movement 112 in the installation cavity 111a.

[0274] In the electric toothbrush 100 according to the embodiment of the present application, since the camera 130 is connected to the movement 112 or the brush handle 111, the camera 130 is provided separately from the brush head 120. When the brush head 120 is replaced, the camera 130 does not need to be replaced simultaneously, thereby reducing the cost of replacing the brush head 120. During brushing, the camera 130 does not extend into the user's mouth, so the probability of the camera 130 being blocked by mouthwash or foam is relatively low, and the camera 130 is more likely to capture clear images.

[0275] As shown in FIG27 , in some embodiments of the present application, the electric toothbrush 100 further includes a light-transmitting member 140 . The light-transmitting member 140 is capable of transmitting light and covers the light inlet 111b to seal the light inlet 111b. The light-transmitting member 140 can be disposed on the outer surface of the handle 111 or at the connection between the light inlet 111b and the mounting cavity 111a. The light-transmitting member 140 and the handle 111 can be integrally formed, simplifying the production process, and the light-transmitting member 140 and the handle 111 as a whole have a good waterproof effect.

[0276] Alternatively, the light-transmitting member 140 and the brush handle 111 are connected separately, for example, the light-transmitting member 140 and the brush handle 111 are connected by clamping, bonding, welding, etc., so as to achieve flexible assembly of light-transmitting members 140 of different specifications and brush handle 111 brackets 180 of different specifications.

[0277] The light-transmitting member 140 may be a light-transmitting plastic sheet or a light-transmitting glass sheet. It should be noted that the light-transmitting member 140 may be a flat glass or a curved glass, thereby having a light-reflecting force to cooperate with the camera 130 to achieve a specific optical effect, such as wide-angle shooting.

[0278] The outer surface of the light-transmitting element 140 is coated with a hydrophobic film 141, which can be a light-transmitting nano-film. The outer surface of the light-transmitting element 140 can also be coated with other types of coatings, such as optical coatings.

[0279] The outer surface of the light-transmitting member 140 is coated with a hydrophobic film 141, which gives it a high water contact angle. This prevents water droplets and other liquids from adhering to the outer surface of the light-transmitting member 140, thereby keeping the outer surface of the light-transmitting member 140 as clean as possible, minimizing the negative impact of water droplets and other liquids on camera 130 photography. Furthermore, the light-transmitting member 140 is easy to clean. Furthermore, since water droplets and other liquids are unlikely to adhere to the outer surface of the light-transmitting member 140, the time that liquids remain on the light-transmitting member 140 is reduced. When the light-transmitting member 140 and the brush handle 111 are separated, the likelihood of water leakage at the junction of the two parts is reduced.

[0280] As shown in Figures 28 and 29, in some embodiments of the present application, the light-transmitting member 140 is tilted to guide liquid to flow out of the light-transmitting member 140. Preferably, when the electric toothbrush 100 is held in a common posture and placed in a common state, the light-transmitting member 140 is at an angle to the horizontal plane, thereby facilitating liquids such as water droplets to slide off the outer surface of the light-transmitting member 140.

[0281] The tilted arrangement of light-transmitting member 140 guides liquid out of the device, keeping its outer surface as clean as possible and minimizing the negative impact of water droplets and other liquids on camera 130. Furthermore, the tilted arrangement of light-transmitting member 140 provides a stable and reliable drainage effect that will not degrade with prolonged use.

[0282] As shown in Figures 30-32, in some embodiments, the electric toothbrush 100 also includes a water absorbing member 150, a receiving chamber 111c connected to the mounting chamber 111a is formed on the brush handle 111, the camera 130 is installed in the receiving chamber 111c, and the light inlet 111b passes through the receiving chamber 111c. Therefore, the light inlet 111b is connected to the mounting chamber 111a through the receiving chamber 111c, and the light transparent member 140 covers the light inlet 111b to seal the light inlet 111b, thereby preventing liquid from entering the receiving chamber 111c from the light inlet 111b.

[0283] It should be noted that the accommodating chamber 111c is sealed by the light-transmitting member 140, and moisture generally cannot enter the accommodating chamber 111c. However, a certain amount of water vapor exists in the air within the accommodating chamber 111c, i.e., the humidity within the accommodating chamber 111c is greater than zero. When the air temperature within the accommodating chamber 111c falls below the dew point, condensation forms within the accommodating chamber 111c. When this condensation adheres to the light-transmitting member 140 or the light-incoming surface of the camera 130, it obstructs the camera 130 from capturing images. The water-absorbing member 150 is located within the accommodating chamber 111c and absorbs moisture within the accommodating chamber 111c, thereby preventing condensation from forming within the accommodating chamber 111c.

[0284] For example, the absorbent member 150 can be positioned at the bottom of the accommodating chamber 111c to avoid the optical path of the camera 130. Furthermore, due to gravity, water vapor will sink to the bottom of the accommodating chamber 111c, facilitating the absorbent member 150 to more fully absorb the water vapor within the accommodating chamber 111c. It is understood that when the absorbent member 150's water absorption performance decreases, it can be replaced to restore its absorption performance. The absorbent member 150 can be made of materials such as anhydrous calcium chloride and calcium oxide.

[0285] The light-transmitting member 140 can prevent liquid from entering the accommodating chamber 111c from the light inlet 111b. Moreover, a water-absorbing member 150 is provided in the accommodating chamber 111c, which can absorb water vapor inside the accommodating chamber 111c, thereby preventing condensed water generated by condensation of water vapor from adhering to the light-transmitting member 140 or the camera 130 and blocking the camera. It can also prevent the camera 130 from being damaged by condensed water, thereby improving the service life of the camera 130.

[0286] Continuing with FIG32 , in some embodiments, the receiving cavity 111c is connected to the mounting cavity 111a via a wire hole 111d. The electric toothbrush 100 also includes a wire that can power the camera 130 and transmit images captured by the camera 130. One end of the wire is connected to the camera 130, and the other end passes through the wire hole 111d and extends into the mounting cavity 111a.

[0287] The core 112 also includes a circuit board, and the other end of the wire can be connected to the circuit board. The camera 130 can transmit the captured image to the circuit board for processing through the wire, or forward it to an external terminal for processing through the circuit board.

[0288] For example, the wire and wire hole 111d may have an interference fit. For example, wire hole 111d may be shaped to match the wire to achieve an interference fit. Alternatively, an elastic member may be installed between wire hole 111d and the wire to achieve an interference fit. The elastic member may be a soft rubber member or sponge. This prevents moisture or liquid from entering the accommodating cavity 111c through wire hole 111d and entering the mounting cavity 111a. In some embodiments, after the wire passes through wire hole 111d, a sealant is filled between the wire and wire hole 111d to fill the gap between the two.

[0289] The accommodating cavity 111c is connected to the installation cavity 111a through the wire hole 111d, and a wire is passed through the wire hole 111d, so that the connectivity of the wire hole 111d is limited, which to a certain extent isolates the accommodating cavity 111c from the installation cavity 111a, preventing or delaying the entry of water vapor or liquid in the accommodating cavity 111c into the installation cavity 111a, and having a certain protective effect on electronic devices such as the movement 112 in the installation cavity 111a.

[0290] In some embodiments, the electric toothbrush 100 includes a heating element, which is used to heat the light-transmitting element 140 or the space sealed by the light-transmitting element 140 to prevent the camera 130 from fogging.

[0291] For example, a heating element may be provided on the light-transmitting element 140 to heat the light-transmitting element 140. The heat from the light-transmitting element 140 is transferred to the air within the mounting cavity 111a, raising the air temperature within the mounting cavity 111a above the dew point temperature, thereby preventing fogging of the camera 130. The heating element may be an electric heating wire provided at the outer edge of the light inlet 111b, thereby not obstructing the field of view of the camera 130, or minimizing the obstruction of the field of view of the camera 130.

[0292] Alternatively, a heating element is provided in the mounting cavity 111a. The heating element heats the air in the mounting cavity 111a to increase the air temperature therein to above the dew point, thereby preventing fogging of the camera 130. The air in the mounting cavity 111a can also transfer heat to the light-transmitting element 140, thereby indirectly heating the light-transmitting element 140.

[0293] The heating element heats the light-transmitting element 140 or the air in the installation cavity 111a, which can prevent the light-transmitting element 140 from fogging, accelerate the evaporation of the liquid on the outer surface of the light-transmitting element 140, reduce the residence time of the liquid on the light-transmitting element 140, reduce the chance of water leakage in the light-transmitting element 140, and enable the camera 130 to capture clear images faster.

[0294] As shown in Figures 28 and 29, in some embodiments, the brush handle assembly 110 further includes a protrusion 113, which is protruded from the brush handle 111. The protrusion 113 may be located at the top, bottom, or middle of the brush handle 111, and is not limited thereto. The protrusion 113 includes a light inlet area 1131 and a flow blocking area 1132. The light inlet 111b is located within the light inlet area 1131. The flow blocking area 1132 is connected to the surface of the brush handle 111. The light inlet area 1131 is connected to the surface of the brush handle 111 via the flow blocking area 1132. The flow angle of the flow blocking area 1132 is steeper than the flow angle of the surface of the brush handle 111 to which the flow blocking area 1132 is connected. The flow blocking area 1132 is used to prevent the fluid from flowing into the light inlet area 1131. For example, the light inlet area 1131 is closer to the end of the brush head 120 away from the brush handle 111 than the flow blocking area 1132. When using the electric toothbrush 100, although the holding posture of the electric toothbrush 100 will change, the brush head 120 is basically located above or above the brush handle 111, that is, the light inlet area 1131 is basically located above the flow blocking area 1132, making it difficult for the liquid in the flow blocking area 1132 to flow to the light inlet area 1131.

[0295] Because the flow angle of the obstruction area 1132 is steeper than the flow angle of the surface of the brush handle 111 to which the obstruction area 1132 is connected, it is difficult for liquid on the brush handle 111 to flow from the brush handle 111 to the obstruction area 1132. At the same time, the obstruction area 1132 can hinder the flow of fluid toward the light inlet area 1131, making it even more difficult for liquid on the brush handle 111 to flow toward the light inlet 111b. This reduces the probability of liquid blocking the optical path of the camera 130, allowing the camera 130 to capture clear images.

[0296] As shown in Figures 31 and 32, in some embodiments, the light inlet 111b is located on the side of the protrusion 113 away from the brush handle 111 in the protruding direction, that is, when the size of the protrusion 113 remains unchanged, the light inlet 111b is as far away from the brush handle 111 as possible, and the interval between the light inlet 111b and the brush handle 111 is relatively large, that is, the interval between the camera 130 and the brush handle 111 is relatively large, the liquid on the brush handle 111 is difficult to flow to the light inlet 111b, and the brush handle 111 will not excessively block the camera 130. When the camera 130 captures an image of the brush head 120 and human body features, the proportions of the brush head 120 and the human body features are relatively reasonable. In the captured image, the brush head 120 and the human body features are both larger in size, so as to more accurately judge the position of the brush head 120 in the human mouth.

[0297] Positioning light inlet 111b away from handle 111 increases the difficulty for liquid on handle 111 to flow into light inlet 111b, reduces the probability of liquid flowing into light inlet 111b, and improves the waterproofness of light inlet 111b. Positioning light inlet 111b away from handle 111 also maximizes the distance between camera 130 and handle 111, preventing the handle 111 from significantly blocking the camera's field of view, thereby facilitating image capture by camera 130.

[0298] As shown in FIG32 , in some embodiments, the protrusion 113 has a protrusion height H relative to the handle 111 that is greater than or equal to 3 mm and less than or equal to 10 mm. The protrusion 113 and the handle 111 can be integrally formed, thereby reducing the manufacturing process and improving the waterproof performance of the protrusion 113 and the handle 111 as a whole. Alternatively, the protrusion 113 and the handle 111 can be provided as separate components, allowing for flexible matching of protrusions 113 of different sizes with handles 111 of different sizes. The protrusion 113 and the handle 111 can be connected by means of clipping, bonding, welding, etc.

[0299] If H is less than 3 mm, the protrusion height H is too low, and the protrusion 113 has little effect on blocking the flow of liquid toward the light inlet 111 b. If H is greater than 10 mm, the electric toothbrush 100 may interfere with the human body during use, affecting normal use. Furthermore, if H is too high, it is easy to break and takes up more space when placed. In this embodiment, 3 mm ≤ H ≤ 10 mm, so the protrusion 113 can effectively block the flow of liquid toward the light inlet 111 b without affecting normal use. Furthermore, the protrusion 113 is not easy to break, and takes up less space when placed.

[0300] As shown in Figures 28 and 29, in some embodiments, the handle 111 includes a transition section 1111 and a grip section 1112. The transition section 1111 has a first connection end 1113 and a second connection end 1114 connected to the brush head 120. The grip section 1112 is connected to the first connection end 1113. The cross-sectional area of ​​the transition section 1111, perpendicular to the longitudinal direction EE of the electric toothbrush 100, gradually decreases from the first connection end 1113 to the second connection end 1114. The protrusion 113 is provided on the transition section 1111 and is spaced apart from the brush head 120. The cross-sectional area of ​​the transition section 1111, perpendicular to the longitudinal direction EE of the electric toothbrush 100, can decrease smoothly or in a stepped manner.

[0301] The transition section 1111 gradually tapers from the first connection end 1113 to the second connection end 1114, minimizing obstruction of the camera 130 by the transition section 1111, allowing the camera 130 to better capture images. Furthermore, water on the brush head 120 flows smoothly from the second connection end 1114 to the first connection end 1113, and then drains along the grip section 1112, preventing water on the brush head 120 from flowing into the light inlet area 1131 of the protrusion 113.

[0302] As shown in FIG. 33 , in some embodiments, the protrusion 113 has a guide groove 113 a , or a guide groove 113 a is configured between the protrusion 113 and the brush handle 111 , and the guide groove 113 a is used to guide the liquid to flow in a direction away from the light entrance area 1131 .

[0303] The guide groove 113 a can improve the drainage efficiency of the protrusion 113 , making it difficult for liquid to gather on the protrusion 113 and further making it difficult for the liquid to flow into the light-entering area 1131 .

[0304] Continuing to refer to FIG. 33 , in some embodiments, the guide groove 113 a is provided in the flow blocking area 1132 and is provided to penetrate in the extension direction of the surface of the brush handle 111 to which the protrusion 113 is connected.

[0305] Since the obstruction area 1132 can hinder the fluid from flowing toward the light-entry area 1131, the liquid on the protrusion 113 may gather in the obstruction area 1132 in a short period of time. The guide groove 113a is arranged in the obstruction area 1132 to effectively accelerate the discharge of the liquid in the obstruction area 1132, and the guide groove 113a is arranged to pass through the extension direction of the surface of the brush handle 111 to which the protrusion 113 is connected. The liquid can flow along the groove wall of the guide groove 113a and the surface of the brush handle 111, further making it difficult for the liquid in the obstruction area 1132 to flow toward the light-entry area 1131.

[0306] As shown in FIG29 , in some embodiments, the electric toothbrush 100 further includes a light source 170. The light source 170 can be located on the handle 111 or on the protrusion 113 (in this case, the light source 170 is indirectly located on the handle 111 via the protrusion 113). The light source 170 is used to provide fill light for the camera 130, thereby enhancing image clarity when the camera 130 is shooting in low-light environments. The light source 170 can be an LED lamp bead, which has relatively high brightness and is energy-efficient. The light emitted by the light source 170 is preferably soft to reduce irritation to the user's eyes. The light source 170 can be configured to turn on and off synchronously with the camera 130 to indicate the user's operating status. Of course, the light source 170 can also have other activation conditions. For example, the light source 170 can be configured to turn on only when the ambient light brightness falls below a certain threshold.

[0307] The light source 170 can provide supplemental light to the camera 130, thereby increasing the amount of light entering the camera 130 and improving the shooting effect of the camera 130, thereby expanding the use scenarios of the electric toothbrush 100. Moreover, since the light source 170 and the camera 130 are turned on and off synchronously, that is, when the light source 170 is off, the camera 130 is off, and when the light source 170 is on, the camera 130 is on, so the user can determine whether the camera 130 is working based on whether the light source 170 is on. The user can more intuitively know the working status of the camera 130, avoiding the disclosure of privacy when the user is not aware of it.

[0308] It is understandable that when there is sufficient light, the light source 170 does not need to be always on for fill light. When the light source 170 is on, it can only light up for a certain time or flash a few times when the camera 130 is turned on to prompt the user that the camera 130 is turned on. Then the camera 130 can continue to be turned on, but the light source 170 can be turned off.

[0309] In some embodiments, the electric toothbrush 100 further includes a controller, which is disposed within the brush handle 111, such as within the mounting cavity 111a. The controller is electrically connected to the camera 130 and is configured to determine the position of the brush head 120 in the oral cavity based on images captured by the camera 130 (e.g., images of the brush head 120 and images of human features), and to calculate the current tooth surface position being brushed. Of course, the controller can also control the opening and closing of the camera 130. The controller can be disposed on the aforementioned circuit board.

[0310] Alternatively, the electric toothbrush 100 may further include a communication module configured to transmit images captured by the camera 130 to an external terminal. The external terminal can then determine the position of the brush head 120 in the oral cavity based on the images captured by the camera 130. The external terminal can also determine the user's potential oral disease risk based on their brushing history. The communication module can be located on the aforementioned circuit board.

[0311] The controller or external terminal can determine the position of the brush head 120 in the mouth based on the image obtained by the camera 130, and prompt the user, such as through the display screen on the electric toothbrush 100, to achieve the function of brushing while watching, which can help users improve brushing efficiency.

[0312] As shown in Figure 34, in some embodiments, the brush handle 111 further has a mounting opening 111e that communicates with the mounting cavity 111a. The camera 130 is mounted on the movement 112, and the entire camera 130 and movement 112 can be installed into the mounting cavity 111a through the mounting opening 111e. The mounting opening 111e can be located at the bottom of the brush handle 111 to prevent liquid from flowing back into the mounting cavity 111a through the opening.

[0313] The camera 130 is connected to the movement 112 , and the camera 130 and the movement 112 can be assembled together into the brush handle 111 , thereby reducing assembly steps and improving assembly efficiency.

[0314] As shown in FIG27 , in some embodiments of the present application, the movement 112 includes a bracket 180, a battery, a motor, and a circuit board. The battery, motor, and circuit board are mounted on the bracket 180, and the camera 130 is also mounted on the bracket 180. The light-incoming surface of the camera 130 is directly opposite the light inlet 111b. During assembly, the camera 130 is mounted on the bracket 180, and the entire assembly consisting of the camera 130, battery, motor, circuit board, and bracket 180 is installed into the mounting cavity 111a through the mounting opening 111e. The bracket 180 and the mounting cavity 111a may be provided with guide structures. When the bracket 180 is assembled in place, the light-incoming surface of the camera 130 is directly opposite the light inlet 111b.

[0315] The bracket 180 can limit the direction of the camera 130 so that the camera 130 is directly opposite the light inlet 111b, so that the field of view of the camera 130 is not blocked. Moreover, the light-inlet surface of the camera 130 can be as close to the light inlet 111b as possible, making the structure of the electric toothbrush 100 more compact.

[0316] As shown in Figure 35, in some embodiments, the camera 130 can capture at least a portion of the brush head 120. In Figure 35, the dotted line defines the field of view of the camera 130, and at least a portion of the brush head 120 is within the field of view, allowing the camera to capture at least a portion of the brush head 120.

[0317] The brush head 120 can provide a preset comparison and reference for the captured image. For example, the camera 130 can determine the lifespan of the bristles 121 by photographing the brush head 120. For another example, the camera 130 can identify the type of brush head 120 by photographing the brush head 120, thereby controlling the brushing mode based on the type of the brush head 120. For another example, the brush head 120 may be provided with a barcode, and the camera 130 can photograph the barcode of the brush head 120 to perform authenticity identification. Furthermore, by comparing the positional relationship between the brush head 120 and human body features, the relative positional relationship between the brush head 120 and the user's face can be more accurately identified, thereby more accurately identifying the position of the brush head 120 in the user's mouth.

[0318] As shown in FIG. 31 and FIG. 32 , in some embodiments, the light inlet 111 b is disposed toward the direction of the brush head 120 , so that the camera 130 can capture at least a portion of the brush head 120 .

[0319] Since the light inlet 111 b faces the brush head 120 , the camera 130 can face the brush head 120 , and the camera 130 can more easily capture the image of the brush head 120 , which can reduce the requirement on the field of view of the camera 130 .

[0320] As shown in FIG28 , in some embodiments, the brush head 120 includes bristles 121, and the surface of the handle 111 that faces the same direction as the brushing surface of the bristles 121 is the front side 111g of the handle 111, with the light inlet 111b located on the back side 111f of the handle 111. Alternatively, the electric toothbrush 100 includes a button 160, which is located on the front side 111g of the handle 111, and the light inlet 111b is located on the back side 111f of the handle 111. In this embodiment, since the handle 111 may be substantially cylindrical in shape, the front side 111g and the back side 111f of the handle 111 are relative terms. The front side 111g and the back side 111f of the handle 111 may both be curved surfaces, and the front side 111g and the back side 111f of the handle 111 may be connected. The button 160 and the light inlet 111b are not limited to being located opposite each other on both sides of the length direction EE of the electric toothbrush 100. For example, the button 160 is located in the middle or upper middle position of the front side 111g of the brush handle 111, and the light inlet 111b is located at the top position of the back side 111f of the brush handle 111.

[0321] When a human body, such as a face, and the brush head 120 are located on either side of the camera 130, the captured image of the human body's vital signs and the image of the brush head 120 are located on opposite sides of the camera 130's field of view. When a human body, such as a face, and the brush head 120 are located on the same side of the camera 130, the captured image of the human body's vital signs and the image of the brush head 120 are located on the same side or in the middle of the camera 130's field of view. This allows the camera 130 to capture more images on both sides of the field of view, obtaining more information and more accurately identifying the relative position of the brush head 120 and the user's face. Conversely, the edge of the camera 130 suffers from more severe distortion, making image recognition at the edge more difficult and affecting recognition accuracy. Furthermore, the camera 130 is located on the back, away from the user's body during brushing. This places the camera 130 relatively further away from the user's chin, thereby reducing the likelihood of the camera 130 being obstructed by the chin. Furthermore, the camera 130 is located on the back surface 111f. When the electric toothbrush 100 is placed, the brush head 120 blocks the optical path of the camera 130, making it difficult for the camera 130 to capture the user's private images. Furthermore, because the camera 130 is positioned toward the brush head 120, when the electric toothbrush 100 is placed on the sink, the camera 130 faces diagonally upward, that is, toward the bathroom ceiling, making it difficult for the camera 130 to capture the user's private images.

[0322] As shown in Figure 36, in some embodiments, the brush head 120 includes a brush rod 122 and a brush plate 123 that are connected to each other. The brush plate 123 is provided with bristles 121. The brush rod 122 includes an entrance section 1221 and an exposed section 1222. The entrance section 1221 is connected to the brush plate 123. The exposed section 1222 is respectively connected to the output shaft 1121 and the entrance section 1221 along the length direction EE of the electric toothbrush 100. When brushing teeth, the brush plate 123 and the entrance section 1221 of the brush rod 122 extend into the user's mouth, and the exposed section 1222 is exposed outside the mouth.

[0323] In this embodiment, the camera 130 can capture the brush head 120 beyond the 30 mm length from the free end to the connection end of the brush head 120. That is, the camera 130 can capture at least a portion of the brush shaft 122 outside the 30 mm length from the free end to the connection end of the brush head 120. Because the total length L1 of the exposed section 1222, the inlet section 1221, and the brush plate 123 in the longitudinal direction EE of the electric toothbrush 100 is greater than 30 mm, but the length of the inlet section 1221 and brush plate 123 in the user's mouth is typically no longer than 30 mm, at least a portion of the exposed section 1222 is not in the user's mouth and can be captured. For example, when brushing the front teeth, only the brush plate 123 is in the mouth, and both the inlet section 1221 and the exposed section 1222 are exposed. When brushing the innermost teeth, all or most of the brush plate 123 and inlet section 1221 are in the user's mouth, but the portion of the brush head 120 that extends into the oral cavity is no longer than 30 mm. Therefore, when the total length L1 of the exposed section 1222 , the inlet section 1221 and the brush plate 123 in the longitudinal direction EE of the electric toothbrush 100 is greater than or equal to 30 mm, the camera 130 can capture at least a portion of the exposed section 1222 .

[0324] The camera 130 can capture at least a portion of the exposed section 1222 , and by comparing the relative positions of the exposed section 1222 and the user's face, the position of the brush head 120 in the oral cavity can be more accurately determined.

[0325] As shown in FIG37 , in some embodiments, the output shaft 1121 has an axis 112a, and the brush head 120 is connected to the output shaft 1121, and the brush head 120 extends generally along the axis 112a. The light inlet 111b has an optical axis 111h, and the axis 112a intersects the optical axis 111h, and at least a portion of the brush head 120 is located within the field of view of the camera 130. It should be noted that the optical axis 111h of the camera 130 and the optical axis 111h of the light inlet 111b can be parallel or non-parallel. For example, when the camera 130 is non-periscope, the optical axis 111h of the camera 130 and the optical axis 111h of the light inlet 111b are parallel or collinear. When the camera 130 is periscope, the optical axis 111h of the camera 130 and the optical axis 111h of the light inlet 111b can be perpendicular or at other angles. It should be noted that, as shown in Figure 38, assuming that the field of view FOV of the camera 130 in Figure 38 is 180°, the effective information obtained in the middle area 130a of the field of view of the camera 130 is more than the effective information obtained in the edge area 130b. Therefore, when setting the orientation of the camera 130, try to make the photographed subject (such as the brush head 120) located in the middle area 130a of the field of view of the camera 130.

[0326] Because the axis 112a intersects the optical axis 111h, the brush head 120 is located approximately in the middle of the field of view of the camera 130. By locating the brush head 120 in the middle of the field of view of the camera 130, when the user uses the electric toothbrush 100, since the brush head 120 is located in the user's mouth, the user's mouth and face are also approximately in the middle of the field of view of the camera 130. As a result, the camera 130 can more easily capture more effective information such as the brush head 120 and the user's face while brushing.

[0327] As shown in Figure 37, in some embodiments, any connecting line between the position of the light inlet 111b and the brush head 120 is a reference reference line 111i, and the angle between the optical axis 111h of the light inlet and the reference reference line 111i is α, 0°≤α≤Y*FOV / 2 degrees, where FOV is the field of view of the camera 130, Y is a constant, and Y≤0.7.

[0328] Generally speaking, when the subject is located within the central 70% of the camera 130's field of view (FOV), that is, when Y = 0.7, the camera 130 can better capture information about the subject. Therefore, when the camera 130's actual field of view (FOV) is 180°, the camera 130's optimal field of view (TFOV) is FOV × 70% = 126°. As shown in FIG39 , when Y ≤ 0.7 and the optical axis 111h is in three different orientations, the brush head 120 can be located at the edge or center of the camera 130's optimal field of view. Therefore, when 0° ≤ α ≤ Y*FOV / 2, the reference datum line 111i can be guaranteed to be within the camera 130's optimal field of view.

[0329] Since the reference baseline 111i is directed toward the brush head 120, when 0°≤α≤Y*FOV / 2, the brush head 120 can be ensured to be within the optimal field of view of the camera 130, that is, the subject being photographed is within the optimal field of view of the camera 130, thereby ensuring the shooting effect of the camera 130.

[0330] As shown in FIG. 40 , the angle between the axis 112 a and the optical axis 111 h is β, and 5°≤β≤45°.

[0331] It is recorded above that the portion of the brush head 120 extending into the oral cavity is usually no larger than 30 mm. Therefore, when the intersection of the optical axis 111h of the camera 130 and the brush rod 122 is located within the range of 0 to 30 mm from the end of the brush head 120 away from the brush handle 111 to the end close to the brush handle 111, that is, when L2 is 30 mm, the photographed subject, such as the brush head 120, is roughly located in the middle area 130a of the field of view of the camera 130. At this time, 5°≤β≤45°.

[0332] Throughout this specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present application. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. An oral care device, wherein: include: A handle, the handle comprising a handle shell, the handle shell being provided with a receiving space, the handle shell being provided with a protrusion protruding in a direction away from the central axis of the handle shell compared to the outer peripheral side, the protrusion forming a mounting space, the protrusion having a side plate, and the side plate being provided with an energy transmission area; a movement, the movement being installed in the accommodation space and at least partially extending out of the handle shell; A care piece, the care piece is mounted on a portion of the movement extending from the handle shell, and the care piece is arranged opposite to the side plate; and An energy receiving module, wherein the energy receiving module is at least partially disposed in the installation space and opposite to the energy transmission area, and the energy receiving module is used for receiving at least part of the energy reflected by the care component and / or human body features outside the oral cavity.

2. The oral care device according to claim 1, wherein: The care part includes a brush rod and a care part connected to each other, the care part includes a plate body and a care sub-part, the brush rod is installed on the part of the movement extending from the handle shell, the plate body is connected to the brush rod, the care sub-part is arranged on the plate body, and the energy receiving range of the energy receiving module covers at least the free end of the care sub-part and / or the side of the plate body facing away from the care sub-part.

3. The oral care device according to claim 1, wherein: The central axis of the energy receiving module is parallel to the central axis of the movement; or the central axis of the energy receiving module intersects with the central axis of the movement at the care part; or the central axis of the energy receiving module intersects with the central axis of the movement at the handle shell, and the angle between the central axis of the energy receiving module and the central axis of the movement is less than 15°.

4. The oral care device according to claim 1, wherein: The care piece includes a brush rod, which is installed on the part of the movement extending from the handle shell. The central axis of the energy receiving module is inclined compared to the central axis of the brush rod and intersects with the central axis of the brush rod between the middle of the brush rod and the free end of the care piece.

5. The oral care device of claim 1, wherein: In a direction perpendicular to and away from the central axis of the handle shell, a height of the protrusion relative to the outer peripheral side of the handle shell ranges from [1 mm, 5 mm].

6. The oral care device of claim 1, wherein: Along the direction of the central axis of the energy receiving module, the projection of the side plate covers the projection of the energy receiving module.

7. The oral care device of claim 6, wherein: Along the direction of the central axis of the energy receiving module, the distance between the outer contour of the projection of the side plate and the outer contour of the projection of the energy receiving module is greater than or equal to 0.5 mm.

8. The oral care device of claim 1, wherein: The handle shell has an end surface facing the care piece, and the side plate extends to the end surface.

9. The oral care device of claim 1, wherein: Along the direction of the central axis of the energy receiving module, the distance between the energy receiving module and the side plate is no more than 10 mm.

10. The oral care device of claim 1, wherein: The handle includes a first side and a second side opposite to each other, the care piece includes a brush rod and a care portion provided on the brush rod, the brush rod is installed on the part of the movement extending from the handle shell, the care portion faces the first side of the handle, and the protrusion is located on the second side of the handle.

11. The oral care device of claim 1, wherein: A hydrophobic layer is provided on the surface of the side plate outside the installation space, and the hydrophobic layer is used to reduce the adhesion of liquid to the side plate.

12. The oral care device of claim 1, wherein: The inner wall of the installation space is provided with a fixing groove, and the energy receiving module is installed in the fixing groove.

13. The oral care device of claim 1, wherein: A partition is provided in the handle shell, the partition is located between the accommodating space and the installation space, and the energy receiving module is arranged on the partition.

14. The oral care device of claim 13, wherein: The partition is provided with a through hole, the movement includes a driving member and a first circuit board located in the handle shell, the output shaft portion of the driving member extends out of the handle shell, and the brush rod of the care member is connected to the output shaft; the first circuit board is arranged on one side of the driving member, and the energy receiving module is electrically connected to the first circuit board through a first conductive member penetrating the through hole.

15. The oral care device of claim 14, wherein: There is a gap between the first circuit board and the partition, and a width of the gap in a direction perpendicular to the center line of the handle shell is greater than 0.5 mm.

16. The oral care device of claim 14, wherein: The handle shell is provided with a control area, the driving member includes a first side and a second side opposite to each other, the first side of the driving member is on the same side as the side facing the care unit, and the first circuit board is arranged on the second side of the driving member; the movement also includes a second circuit board located in the handle shell, the second circuit board is arranged on the first side of the driving member and corresponds to the control area, and the second circuit board is electrically connected to the first circuit board through a second conductive member.

17. The oral care device of claim 1, wherein: The protrusion includes a peripheral side plate and a cover plate. The peripheral side plate protrudes in a direction away from the central axis of the handle shell compared to the outer peripheral side of the handle shell. The peripheral side plate and the handle shell are an integral structure or a split structure. The cover plate is installed on the peripheral side plate and encloses the installation space with the peripheral side plate.

18. The oral care device of claim 17, wherein: The handle housing further comprises a sealing member, and the sealing member is arranged between the peripheral side plate and the cover plate to seal a gap between the peripheral side plate and the cover plate.

19. An oral care device, wherein: include: A handle shell, the handle shell comprising an end shell portion and a peripheral shell portion connected to each other, the peripheral shell portion being arranged at a first end of the end shell portion, and the end shell portion and the peripheral shell portion forming a receiving space; A nursing piece, the nursing piece is arranged at a second end of the end shell portion away from the peripheral shell portion and outside the accommodating space; and An energy receiving module, the energy receiving module is arranged in the accommodating space and located on the side where the end shell portion is located, the energy receiving module faces the end shell portion, so that at least a part of the structure of the nursing piece is located within the receiving range of the energy receiving module; The energy receiving module is used to receive at least part of the energy reflected by the care piece and / or human body features outside the oral cavity.

20. The oral care device of claim 19, wherein: The handle shell is provided with an energy transmission area, and the energy receiving module faces the energy transmission area; the energy transmission area is provided at the end shell portion; and / or the energy transmission area is provided at the peripheral shell portion.

21. The oral care device of claim 19, wherein: The projection of the energy receiving module along a direction perpendicular to and away from the central axis of the handle shell is located within the projection of the end shell portion along a direction perpendicular to and away from the central axis of the handle shell; and / or The projection of the energy receiving module along the extension direction of the central axis of the handle shell is located within the projection of the end shell portion along the extension direction of the central axis of the handle shell.

22. The oral care device of claim 21, wherein: The projection of the end shell portion along the extension direction of the central axis of the handle shell includes a first projection and a second projection connected to each other, the projection of the energy receiving module along the extension direction of the central axis of the handle shell is located within the second projection, and along the direction perpendicular to and away from the central axis of the handle shell, the distance between the outer contour of the second projection and the central axis of the handle shell is greater than the distance between the outer contour of the first projection and the central axis of the handle shell.

23. The oral care device of claim 19, wherein: Along the extension direction of the central axis of the handle shell, the outer contour size of the cross section of the end shell portion gradually decreases from the first end of the end shell portion to the second end of the end shell portion; or Along the extension direction of the central axis of the handle shell, the outer contour dimension of the cross section of the end shell portion first decreases, then remains unchanged, and then decreases again from the first end of the end shell portion to the second end of the end shell portion.

24. The oral care device of claim 19, wherein: The energy receiving module is installed on the surrounding shell; or The energy receiving module is installed on the end shell.

25. The oral care device of claim 24, wherein: When the energy receiving module is installed on the surrounding shell portion, the surrounding shell portion is provided with a mounting plate, the mounting plate is provided with a first mounting groove, the first mounting groove is recessed from the mounting plate toward the direction close to the central axis of the handle shell, and the energy receiving module is arranged in the first mounting groove; when the energy receiving module is installed on the end shell portion, the end shell portion is provided with a second mounting groove, the second mounting groove is recessed from the inner wall of the end shell portion toward the direction close to the care component, and the energy receiving module is arranged in the second mounting groove.

26. The oral care device of claim 19, wherein: An opening is provided at the junction of the end shell portion and the peripheral shell portion, and the energy receiving module is arranged in the opening; the handle shell also includes a cover body, which covers the opening and is respectively connected to the end shell portion and the peripheral shell portion, and the energy receiving module faces the side where the cover body is connected to the end shell portion.

27. The oral care device of claim 26, wherein: The handle housing also includes: A first seal, the first seal is arranged on the peripheral side of the energy receiving module and is located between the cover body and the energy receiving module, and / or is arranged between the energy receiving module and the handle shell, the first seal is used to seal the gap between the energy receiving module and the cover body, and / or is arranged between the energy receiving module and the handle shell.

28. The oral care device of claim 26, wherein: The cover body includes a first part and a second part connected to each other, the first part of the cover body is connected to the end shell part, the side of the first part of the cover body facing the outside of the handle shell and the side of the end shell part facing the outside of the handle shell together form the end surface of the handle shell, the second part of the cover body is connected to the surrounding shell part, the side of the second part of the cover body facing the outside of the handle shell and the side of the surrounding shell part facing the outside of the handle shell together form the side of the handle shell, and the energy receiving module faces the first part of the cover body.

29. The oral care device of claim 19, wherein: The handle shell includes a cover body, and along the extension direction of the central axis of the handle shell, the distance between the energy receiving module and the cover body is no more than 10 mm.

30. The oral care device of claim 19, wherein: The handle shell comprises a cover body, and a hydrophobic layer is provided on one side of the cover body located outside the handle shell, and the hydrophobic layer is used to reduce the adhesion of liquid to the cover body.

31. The oral care device of claim 30, wherein: Along a direction perpendicular to the side of the first portion of the cover body located outside the handle shell, the thickness of the first portion of the cover body is less than the thickness of the end shell portion; and / or Along a direction perpendicular to and away from the central axis of the handle shell, the thickness of the second portion of the cover body is smaller than the thickness of the peripheral shell portion.

32. The oral care device of claim 30, wherein: The first part of the cover body is an energy-transmitting area, and the end shell part and the second part of the cover body are both non-energy-transmitting areas; or the first part of the cover body and the second part of the cover body are both energy-transmitting areas, and the end shell part is a non-energy-transmitting area; or the first part of the cover body, the second part of the cover body and the end shell part are all energy-transmitting areas; or the first part of the cover body is an energy-transmitting area, a part of the second part of the cover body is an energy-transmitting area, and the other part is a non-energy-transmitting area; The energy receiving module faces the energy transparent area so that the receiving range of the energy receiving module is offset from the non-energy transparent area, and external energy enters the energy receiving module through the energy transparent area; the thickness of the energy transparent area is smaller than the thickness of the non-energy transparent area.

33. The oral care device of claim 32, wherein: Along the extension direction of the central axis of the handle shell, the distance between the energy receiving module and the non-energy transparent area is less than 2 mm.

34. The oral care device of claim 19, wherein: The handle shell is provided with a protrusion, and along the extension direction of the central axis of the handle shell, the protrusion is located at an end of the handle shell closer to the care piece, and the energy receiving module is arranged in the protrusion, and the energy receiving module is opposite to the inner wall of the protrusion on the side where the care piece is located.

35. The oral care device of claim 34, wherein: The protrusion is provided with an energy transmission area, and the energy receiving module is opposite to the energy transmission area.

36. The oral care device of claim 34, wherein: The projection of the energy receiving module along the extension direction of the central axis of the handle shell is located at the projection of the protrusion along the extension direction of the central axis of the handle shell; the interval between the outer contour of the projection of the energy receiving module and the outer contour of the projection of the protrusion is not less than 0.5mm.

37. The oral care device of claim 34, wherein: Along a direction perpendicular to and away from the central axis of the handle shell, the handle shell includes a first side and a second side opposite to each other, and the protrusion is arranged on the first side of the handle shell; and / or the protrusion is arranged on the second side of the handle shell.

38. The oral care device of claim 37, wherein: Along the direction perpendicular to and away from the central axis of the handle shell, the distance between the highest point of the protrusion and the second side of the handle shell is in the range of [1 mm, 5 mm].

39. The oral care device of claim 37, wherein: The protrusion includes a surrounding side plate and a cover plate, the surrounding side plate is arranged on the second side of the handle shell and protrudes from the surface of the handle shell, the surrounding side plate and the handle shell are an integral structure or a split structure; the cover plate is installed on the surrounding side plate and forms a accommodating space with the surrounding side plate, and the energy receiving module is arranged in the accommodating space.

40. The oral care device of claim 39, wherein: A second sealing member is provided between the peripheral side plate and the cover plate, and the second sealing member is used for sealing a gap between the peripheral side plate and the cover plate.

41. The oral care device of claim 34, wherein: The side surface of the end shell portion located outside the accommodating space faces the care piece, the protrusion is connected to the end shell portion, the side surface of the protrusion facing the care piece and located outside the accommodating space and the side surface of the end shell portion located outside the accommodating space together form the end surface of the handle shell, and the energy receiving module is opposite to the end surface of the handle shell.

42. The oral care device of claim 19, wherein: The oral care device also includes a movement, which is arranged in the accommodating space. The energy receiving module is connected to the movement and is located at one end of the movement close to the end shell. At least part of the movement extends from the end shell and is connected to the care piece and is used to drive the care piece to vibrate.

43. The oral care device of claim 42, wherein: An embedding groove is provided at one end of the movement close to the end shell portion, and the embedding groove has a mounting opening. The energy receiving module is at least partially accommodated in the embedding groove, and the energy receiving module faces the energy transmission area of ​​the handle shell.

44. The oral care device of claim 42, wherein: The movement includes a driving member and a mounting frame, and the output shaft of the movement extends out of the end shell from a side of the driving member close to the nursing member; The driving component is arranged in the mounting frame, and the energy receiving module is arranged outside the mounting frame and is located on a side of the mounting frame close to the nursing component.

45. The oral care device of claim 42, wherein: The care component includes a brush rod and a care part, one end of the brush rod is connected to the output shaft of the movement; at least part of the structure of the care part is located within the receiving range of the energy receiving module.

46. ​​The oral care device of claim 19, wherein: Along the extension direction of the central axis of the handle shell, the extension direction of the main axis of the energy receiving module intersects with the extension direction of the central axis of the handle shell; or An extension direction of the main axis of the energy receiving module is parallel to an extension direction of the central axis of the handle shell.

47. The oral care device of claim 46, wherein: When the extension direction of the main axis of the energy receiving module is parallel to the extension direction of the central axis of the handle shell, the distance between the main axis of the energy receiving module and the central axis is greater than 5 mm along a direction perpendicular to and away from the central axis of the handle shell.

48. The oral care device of claim 46, wherein: The distance between the outer contour of the projection of the care piece along the extension direction of the central axis of the handle shell and the main axis of the energy receiving module is greater than 2 mm.

49. The oral care device of claim 46, wherein: The care component includes a brush rod, and the central axis of the brush rod is parallel to the central axis of the handle shell; when the extension direction of the main axis of the energy receiving module intersects with the extension direction of the central axis of the handle shell, the extension direction of the main axis of the energy receiving module intersects with the central axis of the brush rod, and the intersection point is located between the middle of the brush rod and the free end of the brush rod away from the handle shell.

50. The oral care device of claim 46, wherein: Along the extension direction of the central axis of the handle shell, the receiving range includes a first edge and a second edge respectively intersecting with the central axis of the handle shell; Along the direction perpendicular to and away from the central axis of the handle shell, the angle range between the first edge and the main axis of the energy receiving module is [20°, 60°]; the angle range between the second edge and the main axis of the energy receiving module is [15°, 45°].

51. The oral care device of claim 19, wherein: The handle shell is provided with an energy transmission area, and the energy receiving module faces the energy transmission area; the oral care device also includes a button, the button is provided on the first side of the handle shell, and the energy transmission area is located on the second side of the handle shell.

52. The oral care device of claim 19, wherein: The energy receiving module includes a receiving component and a buffer component, the receiving component is provided for receiving an external signal, and the receiving end faces the care component; the buffer component is provided on the receiving component, the handle shell includes a cover plate, the buffer component is in contact with the handle shell and / or the buffer component is in contact with the cover plate.

53. An oral care device, wherein: include: a handle shell, the handle shell comprising a first side and a second side opposite to each other; A movement, wherein the movement is disposed in the handle shell and at least a portion of the structure of the output shaft of the movement extends out of the handle shell; A button, the button being arranged on the first side of the handle shell; A care piece, which is mounted on the output shaft of the movement and is located outside the handle housing; and An energy receiving module, the energy receiving module is arranged in the handle shell and located on the second side of the handle shell, the energy receiving module faces the side where the care piece is located, so that at least a part of the structure of the care piece is located within the receiving range of the energy receiving module; The energy receiving module is used to receive at least part of the energy reflected by the care piece and / or human body features outside the oral cavity.

54. The oral care device of claim 53, wherein: The handle shell has a central axis, and the energy receiving module has a main axis; an extension direction of the main axis of the energy receiving module intersects with an extension direction of the central axis of the handle shell; or An extension direction of the main axis of the energy receiving module is parallel to an extension direction of the central axis of the handle shell.

55. The oral care device of claim 54, wherein: The distance between the outer contour of the projection of the care piece along the extension direction of the central axis of the handle shell and the main axis is greater than 2 mm; along the direction perpendicular to and away from the central axis of the handle shell, the main axis intersects the central axis; or, along the direction perpendicular to and away from the central axis of the handle shell, the main axis is parallel to the central axis, and the distance between the main axis and the central axis is greater than 5 mm.

56. The oral care device of claim 54, wherein: Along the direction perpendicular to and away from the central axis of the handle shell, the receiving range includes an intersecting first edge and a second edge; the angle range between the first edge and the main axis along the direction perpendicular to and away from the central axis of the handle shell is [20°, 60°]; the angle range between the second edge and the main axis along the direction perpendicular to and away from the central axis of the handle shell is [15°, 45°].

57. The oral care device of claim 53, wherein: The care part includes a connected brush rod and a care part, one end of the brush rod is installed on the output shaft of the movement, and the care part is arranged at the other end of the brush rod; when the care part is a brush head, the care part includes a hair-planting part and bristles, the bristles are arranged in the hair-planting part, and the side of the hair-planting part facing the first side of the handle shell to the free end of the bristles are all located within the receiving range of the energy receiving module.

58. The oral care device of claim 53, wherein: The oral care device also includes a third seal, which is sleeved on the output shaft of the movement. In a direction perpendicular to and away from the central axis of the handle shell, the third seal is arranged between the output shaft of the movement and the handle shell. The third seal is used to seal the gap between the output shaft of the movement and the handle shell. The energy receiving module is arranged between the third seal and the handle shell.

59. The oral care device of claim 53, wherein: The handle shell includes an end shell portion and a peripheral shell portion, the care component is arranged at one end of the end shell portion; the peripheral shell portion is connected to the end shell portion and is arranged at the other end of the end shell portion, and the energy receiving module faces the end shell portion; the energy receiving module is installed on the peripheral shell portion; or, the energy receiving module is installed on the end shell portion.

60. The oral care device of claim 59, wherein: When the energy receiving module is installed on the surrounding shell portion, the surrounding shell portion is provided with a mounting plate, the mounting plate is provided with a first mounting groove, the first mounting groove is recessed from the mounting plate toward the direction close to the movement, and the energy receiving module is at least partially disposed in the first mounting groove; when the energy receiving module is installed on the end shell portion, the end shell portion is provided with a second mounting groove, the second mounting groove is recessed from the inner wall of the end shell portion toward the direction close to the care part, and the energy receiving module is at least partially disposed in the second mounting groove.

61. The oral care device of claim 59, wherein: Along a direction perpendicular to and away from the central axis of the handle shell, the outer contour size of the cross section of the end shell gradually decreases.

62. The oral care device of claim 59, wherein: The peripheral shell portion is provided with an opening, the opening is located at the second side of the handle shell, and the energy receiving module is arranged at the opening; the handle shell further comprises: A cover body covers the opening and is connected to the end shell portion and the peripheral shell portion respectively. The energy receiving module is arranged on the peripheral shell portion and / or the cover body, and the energy receiving module faces the cover body.

63. The oral care device of claim 62, wherein: The handle housing also includes: A first seal is arranged on the peripheral side of the energy receiving module and is located between the cover body and the energy receiving module and the handle shell and / or between the energy receiving module and the handle shell, and the first seal is used to seal the gap between the energy receiving module and the cover body and / or the gap between the energy receiving module and the handle shell.

64. The oral care device of claim 62, wherein: The cover body includes a first part and a second part that are bent and connected to each other, the first part of the cover body is connected to the end shell part, the side of the first part of the cover body facing the outside of the handle shell and the side of the end shell part facing the outside of the handle shell together form the end surface of the handle shell, the second part of the cover body is connected to the surrounding shell part, the side of the second part of the cover body facing the outside of the handle shell and the side of the surrounding shell part facing the outside of the handle shell together form the side of the handle shell, and the energy receiving module faces the first part of the cover body.

65. The oral care device of claim 64, wherein: A hydrophobic layer is provided on one side of the first part of the cover body located outside the handle shell, and the hydrophobic layer is used to reduce the adhesion of liquid to the first part of the cover body.

66. The oral care device of claim 64, wherein: Along a direction perpendicular to the side of the first portion of the cover body located outside the handle shell, the thickness of the first portion of the cover body is less than the thickness of the end shell portion; and / or Along a direction perpendicular to and away from the central axis of the handle shell, the thickness of the second portion of the cover body is smaller than the thickness of the peripheral shell portion.

67. The oral care device of claim 64, wherein: The first part of the cover body is an energy-transmitting area, and the end shell part and the second part of the cover body are both non-energy-transmitting areas; or, the first part of the cover body and the second part of the cover body are both energy-transmitting areas, and the end shell part is a non-energy-transmitting area; or, the first part of the cover body, the second part of the cover body and the end shell part are all energy-transmitting areas; or, the first part of the cover body is an energy-transmitting area, a part of the second part of the cover body is an energy-transmitting area, and the other part is a non-energy-transmitting area; The energy receiving module faces the energy transmission area, so that the receiving range of the energy receiving module is offset from the non-energy transmission area, and the external energy enters the energy receiving module through the energy transmission area; And / or, the thickness of the energy-transmitting region is smaller than the thickness of the energy-impermeable region.

68. The oral care device of claim 67, wherein: Along the extension direction of the central axis of the handle shell, the distance between the energy receiving module and the non-energy transparent area is less than 2 mm; along the extension direction of the central axis of the handle shell, the distance between the energy receiving module and the first part of the cover body is not greater than 10 mm.

69. The oral care device of claim 53, wherein: The second side of the handle shell has a protrusion, and the energy receiving module is at least partially disposed in the protrusion. The energy receiving module is opposite to the inner wall of the protrusion on the side where the care component is located.

70. The oral care device of claim 69, wherein: The projection of the energy receiving module along the extension direction of the central axis of the handle shell is located at the projection of the protrusion along the extension direction of the central axis of the handle shell; the interval between the outer contour of the projection of the energy receiving module and the outer contour of the projection of the protrusion is not less than 0.5mm.

71. The oral care device of claim 69, wherein: Along the direction perpendicular to and away from the central axis of the handle shell, the distance between the highest point of the protrusion and the second side of the handle shell is in the range of [1mm, 5mm]; or, along the direction perpendicular to and away from the central axis of the handle shell, the distance between the highest point of the protrusion and the second side of the handle shell is not greater than 3mm.

72. The oral care device of claim 69, wherein: The protrusion is provided with an energy transmission area, and the energy receiving module is opposite to the energy transmission area.

73. The oral care device of claim 69, wherein: The energy receiving module is located on the central axis of the protrusion along a direction perpendicular to and away from the central axis of the handle shell. A first arc surface is provided on the side of the protrusion facing the care piece, and the energy receiving module corresponds to the center of the first arc surface.

74. The oral care device of claim 69, wherein: Along the extension direction of the central axis of the handle shell, the outer contour size of the cross section of the protrusion gradually decreases; or Along the extension direction of the central axis of the handle shell, the outer contour size of the cross section of the protrusion first gradually decreases and then gradually increases.

75. The oral care device of claim 69, wherein: The protrusion includes a surrounding side plate and a cover plate, the surrounding side plate is arranged on the second side of the handle shell and protrudes from the surface of the handle shell, the surrounding side plate and the handle shell are an integral structure or a split structure; the cover plate is installed on the surrounding side plate and forms a accommodating space with the surrounding side plate, and the energy receiving module is arranged in the accommodating space.

76. The oral care device of claim 75, wherein: A second sealing member is provided between the peripheral side plate and the cover plate, and the second sealing member is used for sealing a gap between the peripheral side plate and the cover plate.

77. The oral care device of claim 53, wherein: The movement includes a driving member and the output shaft extending from the driving member, the driving member is arranged in the handle shell, the energy receiving module is connected to the driving member, and the energy receiving module is arranged between the driving member and the second side of the handle shell; the handle shell is provided with an energy transmission area, and the energy receiving module faces the energy transmission area.

78. The oral care device of claim 77, wherein: The driving member is provided with a first positioning member, and a second positioning member corresponding to the first positioning member is provided in the handle shell, and the second positioning member is used to cooperate with the first positioning member to space the energy receiving module from the inner wall of the handle shell.

79. The oral care device of claim 77, wherein: The driving member is provided with an embedding groove, the embedding groove has a mounting opening, and the energy receiving module is at least partially accommodated in the embedding groove.

80. The oral care device of claim 77, wherein: A spacer is provided in the handle shell, and the spacer divides the interior of the handle shell into a first cavity and a second cavity which are isolated from each other. The driving member is provided in the first cavity, and the energy receiving module is provided in the second cavity to be spaced from the driving member.

81. The oral care device of claim 80, wherein: The oral care device also includes a circuit board and a connecting wire, wherein the circuit board is arranged on the movement and is electrically connected to the energy receiving module; the spacer is provided with a threading hole, one end of the connecting wire is electrically connected to the circuit board, and the other end of the connecting wire passes through the threading hole and is electrically connected to the energy receiving module.

82. The oral care device of claim 81, wherein: The oral care device further comprises The mounting frame is provided with the driving member in the mounting frame, a wire groove is provided in the mounting frame, and the connecting wire is provided in the wire groove and is located between the driving member and the inner wall of the wire groove.

83. The oral care device of claim 82, wherein: The energy receiving module is arranged on the mounting frame, and the energy receiving module and the circuit board are staggered with each other along a direction perpendicular to and away from the central axis of the handle shell; and / or the energy receiving module and the driving member are staggered along an extension direction of the central axis of the handle shell and / or along a direction perpendicular to and away from the central axis of the handle shell.

84. The oral care device of claim 53, wherein: The energy receiving module includes a receiving component and a buffer component, wherein the receiving component is used to receive external energy and faces the nursing component; The buffer member is arranged on the receiving member, the handle shell includes a cover plate, and the buffer member is in contact with the handle shell and / or the buffer member is in contact with the cover plate.

85. An oral care device, wherein: include: A handle, the handle comprising a handle shell, the handle shell being provided with a receiving space; a movement, the movement being installed in the accommodation space and at least partially extending out of the handle shell; A care piece, the care piece comprising a brush rod and a care portion connected to each other, the brush rod being mounted on a portion of the movement extending from the handle shell, and the care portion being arranged on the brush rod; and An energy receiving module, wherein the energy receiving module is disposed on the movement or the handle shell, and is used for receiving at least part of the energy reflected by the care portion of the care component and / or human body features outside the oral cavity, and the energy received by the energy receiving module does not include energy reflected by the handle.

86. The oral care device of claim 85, wherein: The projected outer contour of the energy receiving module is located outside the projected outer contour of the care piece; in the direction of the central axis of the handle shell, the distance between the center of the projection of the energy receiving module and the projected outer contour of the care piece is greater than 2 mm.

87. The oral care device of claim 85, wherein: The handle shell includes an end shell facing the care piece, and the front side of the end shell facing the care piece is provided with an energy transmission area, and the energy receiving module is opposite to the energy transmission area.

88. The oral care device of claim 87, wherein: In a direction perpendicular to the central axis of the handle shell, an outer contour dimension of a cross section of the end shell close to the handle shell is larger than an outer contour dimension of a cross section of the end shell close to the care piece.

89. The oral care device of claim 87, wherein: The front side of the end shell facing the nursing piece is provided with a non-energy-transmitting area connected to the energy-transmitting area, and the non-energy-transmitting area is located outside the energy receiving range of the energy receiving module.

90. The oral care device of claim 85, wherein: The care portion is arranged on the brush rod, and in a direction perpendicular to the central axis of the handle shell, the maximum cross-section of the brush rod is located outside the energy receiving range of the energy receiving module.

91. The oral care device of claim 90, wherein: Along the direction from the care piece to the handle shell, the outer contour size of the cross section of the brush rod in the direction perpendicular to the central axis of the handle shell gradually increases.

92. The oral care device of claim 85, wherein: The handle shell is provided with a protrusion that protrudes in a direction away from the central axis of the handle shell compared to the outer peripheral side, and the protrusion forms an installation space; the protrusion has a side panel facing the care part, and the side panel is provided with an energy-transmitting area; the energy receiving module is at least partially arranged in the installation space and opposite to the energy-transmitting area.

93. The oral care device of claim 92, wherein: The energy receiving module is located on the central axis of the protrusion along a direction perpendicular to and away from the central axis of the handle shell. A first arc surface is provided on the side of the protrusion facing the care piece, and the energy receiving module corresponds to the center of the first arc surface.

94. The oral care device of claim 92, wherein: The care part includes a plate body and a care sub-part, the brush rod is installed on the part of the movement extending from the handle shell, the plate body is connected to the brush rod, the care sub-part is arranged on the plate body, and the energy receiving range of the energy receiving module covers at least the free end of the care sub-part and / or the side of the plate body facing away from the care sub-part.

95. The oral care device of claim 85, wherein: The central axis of the energy receiving module is parallel to the central axis of the movement; or the central axis of the energy receiving module intersects with the central axis of the movement at the care part; or the central axis of the energy receiving module intersects with the central axis of the movement at the handle shell, and the angle between the central axis of the energy receiving module and the central axis of the movement is less than 15°.

96. The oral care device of claim 85, wherein: The care piece includes a brush rod, which is installed on the part of the movement extending from the handle shell. The central axis of the energy receiving module is inclined compared to the central axis of the brush rod and intersects with the central axis of the brush rod between the middle of the brush rod and the free end of the care piece.

97. The oral care device of claim 92, wherein: In a direction perpendicular to and away from the central axis of the handle shell, a height of the protrusion relative to the outer peripheral side of the handle shell ranges from [1 mm, 5 mm].

98. The oral care device of claim 92, wherein: Along the direction of the central axis of the energy receiving module, the projection of the side plate covers the projection of the energy receiving module.

99. The oral care device of claim 98, wherein: Along the direction of the central axis of the energy receiving module, the distance between the outer contour of the projection of the side plate and the outer contour of the projection of the energy receiving module is greater than or equal to 0.5 mm.

100. The oral care device of claim 92, wherein: The handle shell has an end surface facing the care piece, and the side plate extends to the end surface.

101. The oral care device of claim 92, wherein: Along the direction of the central axis of the energy receiving module, the distance between the energy receiving module and the side plate is no more than 10 mm.

102. The oral care device of claim 92, wherein: The handle includes a first side and a second side opposite to each other, the care piece includes a brush rod and a care portion provided on the brush rod, the brush rod is installed on the part of the movement extending from the handle shell, the care portion faces the first side of the handle, and the protrusion is located on the second side of the handle.

103. The oral care device of claim 92, wherein: A hydrophobic layer is provided on the surface of the side plate outside the installation space, and the hydrophobic layer is used to reduce the adhesion of liquid to the side plate.

104. The oral care device of claim 92, wherein: The inner wall of the installation space is provided with a fixing groove, and the energy receiving module is installed in the fixing groove.

105. The oral care device of claim 92, wherein: A partition is provided in the handle shell, the partition is located between the accommodating space and the installation space, and the energy receiving module is arranged on the partition.

106. The oral care device of claim 105, wherein: The partition is provided with a through hole, the movement includes a driving member and a first circuit board located in the handle shell, the output shaft portion of the driving member extends out of the handle shell, and the brush rod is connected to the output shaft; the first circuit board is arranged on one side of the driving member, and the energy receiving module is electrically connected to the first circuit board through a first conductive member penetrating the through hole.

107. The oral care device of claim 106, wherein: There is a gap between the first circuit board and the partition, and a width of the gap in a direction perpendicular to the center line of the handle shell is greater than 0.5 mm.

108. The oral care device of claim 106, wherein: The handle shell is provided with a control area, the driving member includes a first side and a second side opposite to each other, the first side of the driving member is on the same side as the side facing the care unit, and the first circuit board is arranged on the second side of the driving member; the movement also includes a second circuit board located in the handle shell, the second circuit board is arranged on the first side of the driving member and corresponds to the control area, and the second circuit board is electrically connected to the first circuit board through a second conductive member.

109. The oral care device of claim 92, wherein: The protrusion includes a peripheral side plate and a cover plate. The peripheral side plate protrudes in a direction away from the central axis of the handle shell compared to the outer peripheral side of the handle shell. The peripheral side plate and the handle shell are an integral structure or a split structure. The cover plate is installed on the peripheral side plate and encloses the installation space with the peripheral side plate.

110. The oral care device of claim 109, wherein: The cover plate comprises a first portion and a second portion connected to each other, the first portion being connected to the peripheral side plate; the second portion of the cover plate is an energy-transmitting area, and the first portion of the cover plate is a non-energy-transmitting area; or, the first portion of the cover plate and the second portion of the cover plate are both energy-transmitting areas; or, the second portion of the cover plate is an energy-transmitting area, a part of the first portion of the cover plate is an energy-transmitting area, and the other part is a non-energy-transmitting area; The energy receiving module faces the energy transmission area, so that the receiving range of the energy receiving module is offset from the non-energy transmission area, and the external energy enters the energy receiving module through the energy transmission area; And / or, the thickness of the energy-transmitting region is smaller than the thickness of the energy-impermeable region.

111. The oral care device of claim 109, wherein: The handle housing also includes: A sealing member is provided between the peripheral side plate and the cover plate to seal a gap between the peripheral side plate and the cover plate.

112. The oral care device of claim 109, wherein: The handle shell includes a surrounding shell and an end shell connected to each other, the driving member of the movement is accommodated in the surrounding shell, and the output shaft of the driving member extends from the end shell; the cover plate extends to the end shell and forms at least a part of the end shell, and the cover plate is formed as at least a part of the end shell and is provided with an energy-transmitting area, and the energy receiving module is opposite to the energy-transmitting area.

113. The oral care device of claim 112, wherein: The energy receiving module is mounted on the peripheral shell, the peripheral shell is provided with a mounting plate, the mounting plate is provided with a first mounting groove, the first mounting groove is recessed from the mounting plate toward the direction close to the movement, and the energy receiving module is at least partially disposed in the first mounting groove; or The energy receiving module is installed on the end shell, and the end shell is provided with a second installation groove, the second installation groove is recessed from the inner wall of the end shell toward the direction close to the care part, and the energy receiving module is at least partially arranged in the second installation groove.

114. The oral care device of claim 112, wherein: The cover plate includes a first part and a second part connected to each other, the first part is connected to the peripheral shell, the second part is connected to the end shell, and is bent toward the central axis of the handle shell compared to the first part. In the direction from the care part to the movement, the second part gradually moves away from the central axis of the handle shell, and the second part is provided with the energy transmission area.

115. The oral care device of claim 114, wherein: Along the direction of the handle pointing toward the care piece, the distance between the energy receiving module and the second part is no more than 5 mm.

116. The oral care device of claim 112, wherein: The cover plate protrudes in a direction away from the central axis of the handle shell compared to the peripheral shell.

117. The oral care device of claim 110, wherein: The handle shell is provided with a through hole, the cover plate is installed on the through hole, the cover plate is provided with an energy transmission area or the handle shell is provided with an energy transmission area; The movement comprises a mounting frame located at the through hole, the mounting frame is provided with a mounting position, the energy receiving module is mounted at the mounting position on the mounting frame and corresponds to the energy transmission area; or, The cover plate is provided with a mounting position, and the energy receiving module is mounted on the mounting position on the cover plate and corresponds to the energy transmission area.

118. The oral care device of claim 110, wherein: The cover plate is provided with an energy-transmitting area and a non-energy-transmitting area connected to each other, the energy receiving module is opposite to the energy-transmitting area, and the thickness of the energy-transmitting area is smaller than the thickness of the non-energy-transmitting area; or, the cover plate is provided with an energy-transmitting area, the energy receiving module is opposite to the energy-transmitting area, and the thickness of the cover plate is smaller than the thickness of the side wall of the handle shell.

119. The oral care device of claim 85, wherein: Along the direction of the central axis of the handle shell, the energy receiving range of the energy receiving module includes an intersecting first edge and a second edge, and the first edge and the second edge together form an energy receiving range; the angle range between the first edge and the central axis of the energy receiving module along the direction of the central axis of the handle shell is [20°, 60°]; the angle range between the second edge and the central axis along the direction of the central axis of the handle shell is [15°, 45°].

120. The oral care device of claim 85, wherein: The handle shell includes a first side and a second side opposite to each other; the oral care device also includes a button, which is arranged on the first side of the handle shell; the energy receiving module is arranged in the handle shell and is located on the second side of the handle shell, and the energy receiving module faces the side where the care part is located, so that at least part of the structure of the care part is located within the receiving range of the energy receiving module.

121. The oral care device of claim 85, wherein: Along a direction perpendicular to and away from the central axis of the handle shell, the central axis of the energy receiving module is parallel to the central axis of the handle shell, and the distance between the central axis of the energy receiving module and the central axis of the handle shell is greater than 5 mm.

122. The oral care device of claim 85, wherein: The oral care device further comprises: A seal, wherein the seal is sleeved on the output shaft of the movement, and is disposed between the output shaft of the movement and the handle shell in a direction perpendicular to and away from the central axis of the handle shell. The seal is used to seal the gap between the output shaft of the movement and the handle shell, and the energy receiving module is disposed between the seal and the handle shell.

123. An oral care device, wherein: include: A handle, the handle comprising a handle shell and a cover plate, the handle shell being provided with a through hole, and the cover plate covering the through hole; A movement, the movement being installed in the handle shell and partially extending out of the handle shell; A care piece, the care piece being mounted on a portion of the movement extending from the handle shell; and An energy receiving module, which is disposed in the handle shell through the through hole and is electrically connected to the movement, and corresponds to the cover plate. The energy receiving module is used to receive energy at least partially reflected back by the care piece and / or human body features outside the oral cavity.

124. The oral care device of claim 123, wherein: The central axis of the energy receiving module is parallel to the central axis of the movement; or, the central axis of the energy receiving module and the central axis of the movement intersect at the care part.

125. The oral care device of claim 123, wherein: Along the direction of the handle pointing toward the care piece, the distance between the energy receiving module and the second portion of the cover plate is no more than 5 mm.

126. The oral care device of claim 123, wherein: The oral care device further comprises: An energy emitting module, wherein the energy emitting module is used to emit energy, and the energy receiving module is used to receive at least part of the energy emitted by the energy emitting module and reflected by the care piece and / or human body features outside the oral cavity.

127. The oral care device of claim 123, wherein: The handle shell includes a surrounding shell portion and an end shell portion connected to each other, the driving member of the movement is accommodated in the surrounding shell portion, and the output shaft of the driving member extends from the end shell portion; the cover plate extends to the end shell portion and forms at least a part of the end shell portion, and the cover plate is formed as at least a part of the end shell portion and is provided with an energy-transmitting area.

128. The oral care device of claim 127, wherein: The cover plate includes a first portion and a second portion connected to each other, wherein the first portion is connected to the peripheral shell portion, and the second portion is connected to the end shell portion, and is bent toward the central axis of the handle shell compared to the first portion, and in the direction from the care part to the movement, the second portion gradually moves away from the central axis of the handle shell, and the second portion is provided with the energy transmission area.

129. The oral care device of claim 127, wherein: The cover plate protrudes in a direction away from the central axis of the handle shell compared to the peripheral shell portion.

130. The oral care device of claim 123, wherein: An energy-transmitting area is provided on the cover plate or an energy-transmitting area is provided on the handle shell; the movement includes a mounting frame located at the through hole, a mounting position is provided on the mounting frame, the energy receiving module is installed at the mounting position on the mounting frame and corresponds to the energy-transmitting area; or, a mounting position is provided on the cover plate, the energy receiving module is installed at the mounting position on the cover plate and corresponds to the energy-transmitting area.

131. The oral care device of claim 123, wherein: The handle also includes a partition, which is arranged at the through hole and forms an installation space together with the cover plate. The energy receiving module is installed on the partition and / or the cover plate and is located in the installation space. The movement is arranged outside the installation space.

132. The oral care device of claim 131, wherein: A light strip is arranged on the partition, and a portion of the cover corresponding to the light strip is light-transmissive.

133. The oral care device of claim 132, wherein: The portion of the cover plate corresponding to the light strip is ring-shaped.

134. The oral care device of claim 131, wherein: The partition is a ring-shaped structure with a hollow middle, and the energy receiving module corresponds to a non-hollow area of ​​the partition.

135. The oral care device of claim 131, wherein: The partition protrudes in a direction approaching the central axis of the handle shell compared to the inner side surface of the handle shell.

136. The oral care device of claim 131, wherein: In the case where the energy receiving module is installed on the partition, a limiting member is provided on the partition, and the limiting member is used to limit the circumferential and / or axial direction of the energy receiving module.

137. The oral care device of claim 123, wherein: The partition of the handle is provided with a through hole, the movement includes a driving member and a first circuit board located in the handle shell, the output shaft portion of the driving member extends out of the handle shell, and the care member is connected to the output shaft; the first circuit board is arranged on one side of the driving member, and the energy receiving module is electrically connected to the first circuit board through a first conductive member penetrating the through hole.

138. The oral care device of claim 137, wherein: There is a gap between the first circuit board and the partition, and a width of the gap in a direction perpendicular to the center line of the handle shell is greater than 0.5 mm.

139. The oral care device of claim 137, wherein: The handle shell is provided with a control area, the driving member includes a first side and a second side opposite to each other, and the first circuit board is arranged on the second side of the driving member; the movement also includes a second circuit board located in the handle shell, the second circuit board is arranged on the first side of the driving member and corresponds to the control area, and the second circuit board is electrically connected to the first circuit board through a second conductive member.

140. The oral care device of claim 123, wherein: A buffer pad is provided on a side of the cover plate and / or the energy receiving module facing the cover plate, and the buffer pad is used to buffer the contact force between the cover plate and the energy receiving module.

141. The oral care device of any one of claims 1-140, wherein: The energy receiving module includes an imaging module, the imaging module faces the nursing part, and the imaging module is used to acquire images.

142. The oral care device of claim 141, wherein: The oral care device also includes a reminder; In the case where the nursing component is found to be incompatible according to the image analysis, the prompter is used to issue a prompt message; or, When the imaging module is working, the prompter is used to issue prompt information; or When it is found out from the image that the operation time of the care component in the predetermined tooth area is less than a preset time threshold, the prompter is used to issue a prompt message; or When it is found out from the image that the usage time of the nursing component is longer than the preset upper limit of the usage time, the reminder is used to issue a reminder message.

143. The oral care device of claim 141, wherein: The oral care device further comprises a display; the display is used to display relevant information of the care component obtained by analyzing the image.

144. The oral care device of claim 141, wherein: When the oral care device is awakened, the energy receiving module is activated; or When the energy receiving module is activated and the care component is found to be adapted according to the image analysis, the oral care device is turned on.

145. The oral care device of any one of claims 1-140, wherein: The oral care device includes an electric toothbrush, a mouth scanner, an endoscope or a water flosser.

146. The oral care device of any one of claims 1-140, wherein: The oral care device further comprises: An energy emitting module, wherein the energy emitting module is used to emit energy, and the energy receiving module is used to receive at least part of the energy emitted by the energy emitting module and reflected by the care piece and / or human body features outside the oral cavity.

147. An electric toothbrush, wherein: include: A brush handle assembly, comprising a brush handle and a core, wherein the brush handle is formed with a mounting cavity and a light inlet communicated with the mounting cavity, the core comprises an output shaft, the core is mounted to the mounting cavity and the output shaft extends out of the mounting cavity, and the light inlet is formed on an outer surface of the brush handle; a brush head, the brush head being connected to an end of the output shaft extending out of the mounting cavity; and, A camera is connected to the movement or the brush handle and is arranged corresponding to the light inlet. The light inlet is sealed, or the connection between the light inlet and the installation cavity is sealed to seal the installation cavity.

148. The electric toothbrush according to claim 147, wherein The electric toothbrush comprises a light-transmitting member, which covers the light inlet to seal the light inlet; and the outer surface of the light-transmitting member is covered with a hydrophobic film.

149. The electric toothbrush according to claim 147, wherein: The electric toothbrush comprises a light-transmitting member, which covers the light inlet to seal the light inlet; the light-transmitting member is arranged at an angle to guide liquid to flow out of the light-transmitting member.

150. The electric toothbrush according to claim 147, wherein: The electric toothbrush also includes a light-transmitting component and a water-absorbing component. A receiving cavity is formed on the brush handle. The light inlet passes through the receiving cavity. The camera is installed in the receiving cavity. The light-transmitting component covers the light inlet to seal the light inlet. The water-absorbing component is located in the receiving cavity to absorb water vapor in the receiving cavity.

151. The electric toothbrush according to claim 150, wherein: The accommodating cavity is connected to the mounting cavity via a wire hole. The electric toothbrush also includes a wire, one end of which is connected to the camera, and the other end of which passes through the wire hole and extends into the mounting cavity.

152. The electric toothbrush according to claim 147, wherein: The electric toothbrush comprises a light-transmitting component and a heating component. The light-transmitting component covers the light inlet to seal the light inlet; the heating component is used to heat the light-transmitting component or heat the space sealed by the light-transmitting component.

153. The electric toothbrush according to claim 147, wherein: The brush handle assembly also includes a protrusion, which is protruded on the brush handle, and the protrusion includes a light inlet area and a flow blocking area. The light inlet is located in the light inlet area, and the flow blocking area is connected to the surface of the brush handle. The light inlet area is connected to the surface of the brush handle through the flow blocking area, and the flow angle of the flow blocking area is steeper than the flow angle of the surface of the brush handle to which the flow blocking area is connected, and the flow blocking area is used to hinder the flow of fluid to the light inlet area.

154. The electric toothbrush according to claim 153, wherein: The light inlet is located at a side of the protrusion away from the brush handle in the protrusion direction.

155. The electric toothbrush according to claim 153, wherein: The protrusion has a protrusion height relative to the brush handle that is greater than or equal to 3 mm and less than or equal to 10 mm; and / or the protrusion is integrally formed with the brush handle or is separately provided.

156. The electric toothbrush according to claim 153, wherein: The brush handle includes a transition section and a grip section, the transition section has a first connection end and a second connection end connected to the brush head; the grip section is connected to the first connection end, and from the first connection end to the second connection end, the area of ​​the cross-section of the transition section perpendicular to the length direction of the electric toothbrush gradually decreases, the protrusion is arranged on the transition section, and the protrusion is spaced apart from the brush head.

157. The electric toothbrush according to claim 153, wherein: The protrusion has a guide groove, or a guide groove is constructed between the protrusion and the brush handle, and the guide groove is used to guide the liquid to flow in a direction away from the light inlet area.

158. The electric toothbrush according to claim 157, wherein: The guide groove is arranged in the flow blocking area and is arranged to penetrate in the extension direction of the surface of the brush handle to which the protrusion is connected.

159. The electric toothbrush according to claim 147, wherein: The brush head includes bristles, the surface of the brush handle facing the same direction as the brushing surface of the bristles is the front side of the brush handle, and the light inlet is arranged on the back side of the brush handle; or, The electric toothbrush comprises a button, which is arranged on the front side of the brush handle, and the light inlet is arranged on the back side of the brush handle.

160. The electric toothbrush according to claim 147, wherein: The camera can capture at least a portion of the brush head.

161. The electric toothbrush according to claim 160, wherein: The light inlet is arranged toward the direction where the brush head is located, so that the camera can capture at least a portion of the brush head.

162. The electric toothbrush according to claim 160, wherein: The brush head includes a brush rod and a brush plate connected to each other, the brush plate is provided with bristles, the brush rod includes an entrance section and an exposed section, the entrance section is connected to the brush plate; the exposed section is respectively connected to the output shaft and the entrance section along the length direction of the electric toothbrush; the total length of the exposed section, the entrance section and the brush plate in the length direction of the electric toothbrush is greater than or equal to 30 mm, so that the camera can capture at least part of the exposed section.

163. The electric toothbrush according to claim 147, wherein: The output shaft has an axis, the light inlet has an optical axis, the axis intersects with the optical axis, and at least a portion of the brush head is located within the field of view of the camera.

164. The electric toothbrush according to claim 163, wherein: Any connecting line between the position of the light inlet and the brush head is a reference datum line, and the angle between the optical axis of the light inlet and the reference datum line is α, and α is greater than or equal to 0 degrees and less than or equal to Y*FOV / 2 degrees; FOV is the field of view of the camera, and Y is a constant and is less than or equal to 0.

7.

165. The electric toothbrush according to claim 163, wherein: The angle between the axis and the optical axis is β, and β is greater than or equal to 5 degrees and less than or equal to 45 degrees.

166. The electric toothbrush according to claim 147, wherein: It also includes a light source disposed on the brush handle, the light source is used to provide supplementary light to the camera, and / or the light source is turned on and off synchronously with the camera.

167. An electric toothbrush according to any one of claims 147-166, wherein The electric toothbrush also includes a controller, which is disposed in the brush handle and electrically connected to the camera, and the controller is used to determine the position of the brush head in the oral cavity based on the image acquired by the camera; or, the electric toothbrush also includes a communication module, and the communication module is used to send the image acquired by the camera to an external terminal, and the terminal is used to determine the position of the brush head in the oral cavity based on the image acquired by the camera.

168. An electric toothbrush according to any one of claims 147-166, wherein The brush handle also has an installation opening communicated with the installation cavity. The camera is arranged on the core. The whole formed by the camera and the core can be installed in the installation cavity through the installation opening.

169. An electric toothbrush according to any one of claims 147-166, wherein The movement comprises a bracket, the camera is arranged on the bracket, and the light-incoming surface of the camera is arranged opposite to the light-inlet port.

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