Electric toothbrush head and electric toothbrush

Abstract

The present application relates to an electric toothbrush head and an electric brush head. The electric toothbrush head includes a brush head body, which includes a first accommodation cavity with an installation opening on one side; a bristle member installed at the installation opening; and a first trigger switch disposed in the first accommodation cavity. Among them, the bristle member can move relative to the brush head body between a first position and a second position under the action of an external force. The first trigger switch can be separated from the bristle member when the bristle member is in the first position and is triggered when the bristle member is in the second position. The first trigger switch can send an alarm signal when triggered. If the brushing force is too large, it will cause the bristle member to move from the first position to the second position, thereby triggering the first trigger switch. After the first trigger switch is triggered, it sends an alarm signal, and this alarm signal can be responded to by an alarm member, thereby sending out a warning prompt message to remind the user that the brushing force is too large. Under this prompt, the user can reduce the brushing force, thereby improving the cleaning efficiency of brushing teeth.

Description

Technical Field

[0001] The present application relates to the technical field of daily necessities cleaning, and particularly to an electric toothbrush head and an electric toothbrush. Background Art

[0002] With the improvement of people's living standards, more and more users choose to use electric toothbrushes. An electric toothbrush can make the toothbrush head generate high-frequency vibrations through the rapid rotation or vibration of its motor core, instantly decompose toothpaste into fine foam, and deeply clean the tooth gaps, thereby ensuring the health of the teeth in the oral cavity.

[0003] During the process of using an electric toothbrush to brush teeth, it is very difficult for users to grasp the brushing force. If the brushing force on the teeth is too large, the bristles will be deformed, thus affecting the cleaning efficiency of brushing teeth. Summary of the Invention

[0004] Based on this, it is necessary to provide an electric toothbrush head and an electric toothbrush that can avoid excessive brushing force by users and improve the cleaning efficiency of brushing teeth in view of the problem that it is very difficult for users to grasp the brushing force during the brushing process of existing electric toothbrushes, and the cleaning efficiency of brushing teeth is affected when the brushing force is too large.

[0005] The present application provides an electric toothbrush head, including:

[0006] A brush head body, including a first accommodation cavity with an installation opening on one side;

[0007] A bristle member, installed at the installation opening; and

[0008] A first trigger switch, arranged in the first accommodation cavity;

[0009] Wherein, the bristle member can move relative to the brush head body between a first position and a second position under an external force, the first trigger switch can be separated from the bristle member when the bristle member is in the first position, and can be triggered when the bristle member is in the second position;

[0010] The first trigger switch can send an alarm signal when being triggered.

[0011] In one embodiment, the electric toothbrush head further includes an alarm member, and the alarm member is communicatively connected to the first trigger switch;

[0012] The alarm member can respond to the alarm signal and send out an alarm prompt message.

[0013] In one embodiment, the electric toothbrush head further includes a second trigger switch disposed in the first accommodation cavity. During the movement of the bristle member relative to the brush head body, there is also a third position located between the first position and the second position, and the second trigger switch can be triggered when the bristle member is in the third position.

[0014] The second trigger switch can send a vibration frequency signal when triggered.

[0015] In one embodiment, the electric toothbrush head further includes a first elastic member, with both ends of the first elastic member abutted against the brush head body and the bristle member respectively to provide a pre-tightening force for the bristle member to stay in the first position.

[0016] In one embodiment, the brush head body is provided with a first positioning member, and the first elastic member cooperates with the first positioning member to be positioned on the brush head body; and / or

[0017] The bristle member is provided with a second positioning member, and the first elastic member cooperates with the second positioning member to be positioned on the bristle member.

[0018] In one embodiment, the bristle member includes a bristle member body and an elastic buckle. The elastic buckle includes an elastic arm and a buckle portion. One end of the elastic arm is connected to the bristle member body, and the other end extends in a first direction away from the bristle member body. The buckle portion protrudes from one side of the elastic arm in a second direction, and the buckle portion can abut against the brush head body under the action of the pre-tightening force of the first elastic member to limit the bristle member body to the brush head body.

[0019] Wherein, the first direction intersects with the second direction.

[0020] In one embodiment, the bristle member is detachable relative to the brush head body.

[0021] In one embodiment, the electric toothbrush head further includes a vibration transmission shaft capable of transmitting the vibration generated by the motor of the electric toothbrush. The vibration transmission shaft is disposed on the brush head body, and one end of the vibration transmission shaft is electrically connected to the first trigger switch, and the other end is used to be connected to the main control board of the electric toothbrush body of the electric toothbrush. The electric toothbrush head is used to be connected to the electric toothbrush body.

[0022] In one embodiment, the electric toothbrush head further includes a first electrical connection line and an electrical connection block. One end of the first electrical connection line is electrically connected to the first trigger switch, the other end of the first electrical connection line is connected to the electrical connection block, and one end of the electrical connection block away from the first electrical connection line is in contact with the vibration transmission shaft.

[0023] In one embodiment, the electric toothbrush head further includes a second elastic member, and the second elastic member is compressed between the brush head body and the electrical connection block;

[0024] The second elastic member is configured to provide a pre-tightening force for keeping the electrical connection block in contact with the vibration transmission shaft.

[0025] In one embodiment, one of the brush head body and the vibration transmission shaft is provided with a positioning slot, and the other of the brush head body and the vibration transmission shaft is provided with a positioning protrusion, and the positioning slot is matched with the positioning protrusion to position the vibration transmission shaft on the brush head body.

[0026] On the other hand, the present invention further provides an electric toothbrush, including the above-mentioned electric toothbrush head and an electric toothbrush body connected to the electric toothbrush head.

[0027] In one embodiment, the electric toothbrush body includes a body main body, a motor and a main control board both installed on the body main body;

[0028] The motor is controlled to provide a vibration force to the electric toothbrush head, and the first trigger switch is communicatively connected to the main control board.

[0029] In one embodiment, the motor includes a vibration motor shaft, and the first trigger switch is electrically connected to the main control board through the vibration motor shaft.

[0030] In one embodiment, when the electric toothbrush head includes the vibration transmission shaft, one end of the vibration transmission shaft away from the first trigger switch is docked with one end of the vibration motor shaft.

[0031] In one embodiment, the electric toothbrush body further includes a conductive sheet and a second electrical connection line. The conductive sheet is attached to the vibration motor shaft, and one end of the second electrical connection line is connected to the conductive sheet and the other end is electrically connected to the main control board.

[0032] In one embodiment, a stepped groove is provided on the outer side of the vibration motor shaft, and the conductive sheet is attached to the bottom wall of the stepped groove extending axially.

[0033] When brushing teeth with the electric toothbrush having the electric toothbrush head, if the brushing force is too large, it will cause the bristle member to move from the first position to the second position, thereby triggering the first trigger switch. After the first trigger switch is triggered, it sends an alarm signal, and the alarm signal can be responded to by the alarm member, thereby sending out an alarm prompt message to remind the user that the brushing force is too large. The user can reduce the brushing force under this prompt, thereby improving the cleaning efficiency of brushing teeth.

[0034] In addition, since the first trigger switch of the present application is triggered by the movement of the bristle member, and the bristle member is in direct contact with the user's teeth, the brushing force can be timely feedback, with sensitive response, and no additional movement structure needs to be set, so the overall structure is also simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of an electric toothbrush in an embodiment of the present application;

[0036] Figure 2 is a schematic cross-sectional structure diagram of an electric toothbrush head in an electric toothbrush in an embodiment of the present application;

[0037] Figure 3 is Figure 2 a schematic cross-sectional structure diagram of a partial structure of the electric toothbrush head in the shown electric toothbrush;

[0038] Figure 4 is Figure 2 a schematic cross-sectional structure diagram of another partial structure of the electric toothbrush head in the shown electric toothbrush;

[0039] Figure 5 is a schematic cross-sectional structure diagram of an electric toothbrush body in an electric toothbrush in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following detailed description of the specific embodiments of the present application will be made with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art belonging to the technical field of the present application. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0047] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements are only drawn by way of example in the drawings and not necessarily to the true scale.

[0048] Figure 1 The schematic structural diagram of an electric toothbrush in an embodiment of the present application is shown. Figure 2 The schematic cross-sectional structure diagram of the electric toothbrush head in the electric toothbrush in an embodiment of the present application is shown. Figure 3 Shown is Figure 2 The schematic cross-sectional structure diagram of a partial structure of the electric toothbrush head in the shown electric toothbrush. For ease of description, the drawings only show the structures related to the embodiments of the present invention.

[0049] Referring to the drawings, an embodiment of the present application provides an electric toothbrush head 100, which includes a brush head body 10, a bristle member 20 and a first trigger switch 30. The electric toothbrush head 100 of the present application is used for an electric toothbrush 200, and the electric toothbrush 200 further includes an electric toothbrush body 210, and the electric toothbrush head 100 can be connected to the electric toothbrush body 210.

[0050] The brush head body 10 includes a first accommodation cavity 11 with an installation opening on one side. The bristle member 20 is installed at the installation opening, and the first trigger switch 30 is disposed in the first accommodation cavity 11. Among them, the bristle member 20 can move relative to the brush head body 10 between a first position and a second position under an external force. The first trigger switch 30 can be separated from the bristle member 20 when the bristle member 20 is in the first position, and can be triggered when the bristle member 20 is in the second position. The first trigger switch 30 can send an alarm signal when triggered.

[0051] In the embodiment of the present application, the alarm signal can be responded to by the alarm member 40, so that the alarm member 40 issues a warning prompt message. Specifically, the electric toothbrush head 100 includes an alarm member 40. In other embodiments, the electric toothbrush body 210 includes an alarm member 40, which is not limited herein. In some embodiments, the alarm member 40 is one or any combination of an alarm lamp, a buzzer or a vibration member, which is not limited herein. Specifically, the vibration member can be the motor 212 in the electric toothbrush body 210 ( Figure 5As shown, after the motor 212 responds to the alarm signal, it can give a prompt to the user by stopping the motor 212, or give a prompt to the user in other frequencies or by changing the vibration direction, which is not limited here.

[0052] In this way, when brushing teeth with the electric toothbrush 200 having the electric toothbrush head 100, if the brushing force is too large, it will cause the bristle member 20 to move from the first position to the second position, thereby triggering the first trigger switch 30. After the first trigger switch 30 is triggered, it sends an alarm signal, and the alarm signal can be responded to by the alarm member 40, thereby sending an alarm prompt message to remind the user that the brushing force is too large. The user can reduce the brushing force under this prompt, thereby improving the cleaning efficiency of brushing teeth.

[0053] In addition, since the present application triggers the first trigger switch 30 through the movement of the bristle member 20, and the bristle member 20 is directly in contact with the user's teeth, it can timely feedback the brushing force, with quick response, and no additional movement structure needs to be set, so the overall structure is also simple.

[0054] Please refer to again Figure 3 In some embodiments, the electric toothbrush head 100 further includes a first elastic member 50. The two ends of the first elastic member 50 are respectively abutted against the brush head body 10 and the bristle member 20 to provide a pre-tightening force for the bristle member 20 to stay in the first position. In this way, the first trigger switch 30 can be triggered by the bristle member 20 resisting the elastic force of the first elastic member 50 under an external force, and can automatically return to a position separated from the first trigger switch 30 after the external force disappears. Therefore, the adjustment of the brushing force is fast, improving the user experience. Specifically, the first elastic member 50 includes a spring. In other embodiments, it can also be elastic rubber or silicone, etc., which is not limited here.

[0055] Specifically, in the implementation manner of the present application, the first elastic member 50 is disposed in the first accommodation cavity 11. In other implementation manners, it can also be disposed outside the first accommodation cavity 11, which is not limited here.

[0056] In some embodiments, the brush head body 10 is provided with a first positioning member 12, and the first elastic member 50 is engaged with the first positioning member 12 to be positioned on the brush head body 10. Specifically, the first positioning member 12 is a positioning stud or a positioning groove. In another embodiment, the bristle member 20 is provided with a second positioning member 21, and the first elastic member 50 is engaged with the second positioning member 21 to be positioned on the bristle member 20. Specifically, the second positioning member 21 is a positioning stud or a positioning groove. In other embodiments, the brush head body 10 is provided with a first positioning member 12, the first elastic member 50 is engaged with the first positioning member 12, and the bristle member 20 is provided with a second positioning member 21, and the first elastic member 50 is engaged with the second positioning member 21. By setting the positioning members, the first elastic member 50 can be prevented from shifting during the movement of the bristle member 20, thereby making the movement of the bristle member 20 stable.

[0057] Furthermore, the bristle member 20 includes a bristle member body 22 and an elastic buckle 23. The elastic buckle 23 includes an elastic arm 231 and a buckle portion 232. One end of the elastic arm 231 is connected to the bristle member body 22, and the other end extends in a first direction away from the bristle member body 22. The buckle portion 232 protrudes from one side of the elastic arm 231 in a second direction. The buckle portion 232 can abut against the brush head body 10 under the action of the pre-tightening force of the first elastic member 50, so that the bristle member body 22 is limited to the brush head body 10, wherein the first direction intersects with the second direction. Specifically, the first direction is the same as the movement direction of the bristle member 20 relative to the brush head body 10, and the first direction is perpendicular to the second direction. By providing the elastic buckle 23, during the process of installing the bristle member 20 into the installation opening, the buckle portion 232 resists against the side wall of the brush head body 10 to cause elastic deformation of the elastic arm 231. After reaching the installation position, the resistance force disappears, and the buckle portion 232 can return to its original position under the action of the elastic arm 231, and then the buckle portion 232 abuts against the brush head body 10. Using the elastic buckle 23 makes the connection relationship between the bristle member 20 and the brush head body 10 more reliable.

[0058] In addition, it should be noted that by providing the elastic buckle 23, the bristle member 20 is detachable relative to the brush head body 10. Thus, when the bristles are damaged or worn out, only the bristle member 20 needs to be replaced, and there is no need to replace the entire electric toothbrush head 100. Therefore, the replacement cost is saved. In other embodiments, the bristle member 20 can also be made detachable relative to the brush head body 10 by means other than the elastic buckle 23, such as sliding disassembly, etc., which is not limited herein.

[0059] Specifically, in the embodiment of the present application, the elastic arm 231 can extend into the first receiving cavity 11, and the buckle portion 232 abuts against the cavity wall of the first receiving cavity 11. In other embodiments, the elastic buckle 23 can also be outside the first receiving cavity 11, which is not limited herein.

[0060] Specifically, in the embodiment of the present application, the bristle member 20 includes at least two elastic buckles 23, and the at least two elastic buckles 23 are arranged at intervals along the circumferential direction of the bristle member body 22. Preferably, the bristle member 20 includes three elastic buckles 23.

[0061] In some embodiments, the bristle member 20 and the brush head body 10 are hermetically connected by a sealant. Specifically, the sealant is filled into the first accommodation cavity 11. In other embodiments, they can also be hermetically connected by other sealing structures, which are not limited herein.

[0062] In some embodiments, the electric toothbrush head 100 further includes a second trigger switch 60. The second trigger switch 60 is arranged in the first accommodation cavity 11. During the movement of the bristle member 20 relative to the brush head body 10, there is also a third position, which is located between the first position and the second position. The second trigger switch 60 can be triggered when the bristle member 20 is in the third position, and the second trigger switch 60 can send a vibration frequency signal when triggered. Specifically, the vibration frequency signal sent by the second trigger switch 60 can be responded to by the motor 212 in the electric toothbrush body 210, so that the motor 212 can vibrate at the first vibration frequency. In this way, when the bristle member 20 contacts the user's teeth, the bristle member 20 moves and first triggers the second trigger switch 60, and then the motor 212 can vibrate at the first vibration frequency to clean the teeth.

[0063] In the embodiment of the present application, when the electric toothbrush 200 is started, the motor 212 can vibrate at a second vibration frequency less than the first vibration frequency to avoid the toothpaste falling off the bristle member 20 due to excessive vibration during brushing. Of course, in other embodiments, after the electric toothbrush 200 is started, the motor 212 can also vibrate at the first vibration frequency directly after the second trigger switch 60 is triggered. In this way, before the bristle member 20 contacts the teeth, the motor 212 does not work, avoiding toothpaste dropping.

[0064] In some embodiments, the electric toothbrush head 100 further includes a brush head circuit board 70 arranged in the first accommodation cavity 11, and the first trigger switch 30 is integrated on the brush head circuit board 70. Similarly, the second trigger switch 60 can also be integrated on the brush head circuit board 70. In other embodiments, the alarm member 40 can also be integrated on the brush head circuit board 70. Specifically, the brush head circuit board 70 is connected to the cavity wall of the first accommodation cavity 11 by screws.

[0065] Such as Figure 4As shown, in some embodiments, the electric toothbrush head 100 further includes a vibration transmission shaft 75. The vibration transmission shaft 75 can transmit the vibration generated by the motor 212. The vibration transmission shaft 75 is disposed on the brush head body 10, and one end is electrically connected to the first trigger switch 30, and the other end is used to be connected to the main control board 213 of the electric toothbrush body 210 of the electric toothbrush 200. In this way, the first trigger switch 30 can be controlled by the main control board 213 of the electric toothbrush 200, and the function of replacing the electric toothbrush head 100 is not affected. It should also be noted that since the first trigger switch 30 is connected to the main control board 213 through the vibration transmission shaft 75 and uses the existing components of the electric toothbrush 200 itself without the need to additionally set up an electrical connection structure, the overall structure is simplified.

[0066] In addition, in order to improve the electrical conductivity of the vibration transmission shaft 75, in some embodiments, it can be achieved by increasing the percentage of nickel element in the vibration transmission shaft 75.

[0067] Furthermore, in order to prevent the vibration of the vibration transmission shaft 75 from affecting the first trigger switch 30, it is provided that the electric toothbrush head 100 further includes a first electrical connection line 80 and an electrical connection block 82. One end of the first electrical connection line 80 is electrically connected to the first trigger switch 30, the other end of the first electrical connection line 80 is connected to the electrical connection block 82, and the end of the electrical connection block 82 away from the first electrical connection line 80 is in contact with the vibration transmission shaft 75. In this way, by providing the first electrical connection line 80, the vibration conducted by the vibration transmission shaft 75 to the first trigger switch 30 can be weakened or even eliminated, and the connection between the first electrical connection line 80 and the vibration transmission shaft 75 can be made reliable through the electrical connection block 82 to avoid disconnection during the vibration process.

[0068] Furthermore, the electric toothbrush head 100 further includes a second elastic member 85. The second elastic member 85 is compressed between the brush head body 10 and the electrical connection block 82 and is used to provide a pre-tightening force for the electrical connection block 82 to keep in contact with the vibration transmission shaft 75. In this way, by providing the second elastic member 85, the electrical connection block 82 and the vibration transmission shaft 75 can always be kept in contact state without affecting their electrical connection relationship. Specifically, the second elastic member 85 includes a sponge or other porous structures, which is not limited herein.

[0069] Furthermore, the brush head body 10 has a limiting cavity 13, the second elastic member 85 is limited in the limiting cavity 13, and the electrical connection block 82 extends into the limiting cavity 13 and is in contact with the second elastic member 85.

[0070] In some embodiments, one of the brush head body 10 and the vibration drive shaft 75 is provided with a positioning slot 751, and the other is provided with a positioning protrusion 14. The positioning slot 751 cooperates with the positioning protrusion 14 to position the vibration drive shaft 75 on the brush head body 10. In this way, the positioning method of the vibration drive shaft 75 is simple, and through this positioning, the positional relationship between the vibration drive shaft 75 and the brush head body 10, that is, the limiting cavity 13, can be determined, so that the second elastic member 85 can be reliably compressed.

[0071] In some embodiments, the brush head body 10 has a second receiving cavity 15 connected to the first receiving cavity 11, and the vibration drive shaft 75 and the first electrical connection line 80 are both disposed in the second receiving cavity 15. Specifically, the second receiving cavity 15 includes a limiting cavity 13.

[0072] In some embodiments, the brush head body 10 includes a brush head bracket 90. The brush head bracket 90 is installed in the second receiving cavity 15 and is used to support the vibration drive shaft 75. Specifically, the positioning slot 751 or the positioning protrusion 14 is disposed on the brush head bracket 90. Specifically, the brush head bracket 90 is installed in the second receiving cavity 15 by a buckle or a slot.

[0073] In some embodiments, the brush head bracket 90 has a third receiving cavity 91. Both ends of the third receiving cavity 91 communicate with the second receiving cavity 15 and the outside respectively, and the vibration drive shaft 75 is disposed in the third receiving cavity 91.

[0074] Please refer to again Figure 1 , based on the same inventive concept, the present application further provides an electric toothbrush 200, including the above-mentioned electric toothbrush head 100 and an electric toothbrush body 210 connected to the electric toothbrush head 100. Specifically, the electric toothbrush head 100 can be integrally provided with or detachably connected to the electric toothbrush body 210.

[0075] As Figure 5 shown, further, the electric toothbrush body 210 includes a body main body 211, a motor 212 and a main control board 213 installed on the body main body 211. The motor 212 is controlled to provide a vibration force to the electric toothbrush head 100, and the first trigger switch 30 is communicatively connected to the main control board 213. In this way, the first trigger switch 30 sends an alarm signal to the main control board 213, and the alarm member 40 and the motor 212 are controlled through the main control board 213. Similarly, the second trigger switch 60 is also communicatively connected to the main control board 213.

[0076] In some embodiments, the motor 212 includes a vibration motor shaft 2121. The first trigger switch 30 is electrically connected to the main control board 213 through the vibration motor shaft 2121. Similarly, the second trigger switch 60 can also be electrically connected to the main control board 213 through the vibration motor shaft 2121. In this way, without additional electrical connection structures, the components of the electric toothbrush body 210 itself are used to communicate with the first trigger switch 30, simplifying the overall structure.

[0077] Specifically, one end of the vibration transmission shaft 75 away from the first trigger switch 30 is butted against one end of the vibration motor shaft 2121. In this way, the first trigger switch 30 can be electrically connected to the main control board 213 through the vibration transmission shaft 75 and the vibration motor shaft 2121.

[0078] Furthermore, the electric toothbrush body 210 further includes an electrical connection component. One end of the electrical connection component is attached to the vibration motor shaft 2121 along the radial direction of the vibration motor shaft 2121, and the other end is electrically connected to the main control board 213. In this way, it can be avoided that the electrical connection component is arranged at the end of the vibration motor shaft 2121, which affects the docking between it and the vibration transmission shaft 75. In addition, it is also beneficial to increase the attachment area and improve the connection reliability.

[0079] Even further, the electrical connection component includes a conductive sheet 214 and a second electrical connection line 215. The conductive sheet 214 is attached to the vibration motor shaft 2121. One end of the second electrical connection line 215 is connected to the conductive sheet 214, and the other end is electrically connected to the main control board 213. In this way, by setting the conductive sheet 214, the structure is simple, and the attachment area with the vibration motor shaft 2121 is large. And by setting the second electrical connection line 215, the influence of the vibration generated by the vibration motor shaft 2121 on its electrical connection with the main control board 213 can be reduced or even eliminated, improving the connection reliability. Specifically, the conductive sheet 214 can be welded to the vibration motor shaft 2121. Specifically, the conductive sheet 214 is a metal conductive sheet.

[0080] In some embodiments, in order to make the positioning of the conductive sheet 214 relative to the vibration motor shaft 2121 more stable, a stepped groove 2122 is provided on the outer side of the vibration motor shaft 2121, and the conductive sheet 214 is attached to the bottom wall of the stepped groove 2122 extending along the axial direction.

[0081] In the embodiments of the present application, the electric toothbrush body 210 further includes a battery 216. The battery 216 is electrically connected to the main control board 213 and the motor 212, and the battery 216 can supply power to the motor 212.

[0082] In some embodiments, the body main body 211 further includes a body bracket 217. The body bracket 217 is installed in the third accommodation cavity 2111 of the body main body 211, and both the motor 212 and the main control board 213 are installed on the body bracket 217.

[0083] The electric toothbrush head 100 and the electric toothbrush 200 provided by the embodiments of the present application have the following beneficial effects:

[0084] When brushing teeth with the electric toothbrush 200 having the electric toothbrush head 100, if the brushing force is too large, it will cause the bristle member 20 to move from the first position to the second position, thereby triggering the first trigger switch 30. After the first trigger switch 30 is triggered, it sends an alarm signal, and this alarm signal can be responded to by the alarm member 40, thereby sending out a warning prompt message to remind the user that the brushing force is too large. Under this prompt, the user can reduce the brushing force, thereby improving the cleaning efficiency of brushing teeth.

[0085] In addition, since the present application triggers the first trigger switch 30 through the movement of the bristle member 20, and the bristle member 20 is directly in contact with the user's teeth, it can timely feedback the brushing force, with sensitive response, and there is no need to additionally set up a movement structure, so the overall structure is also simple.

[0086] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0087] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limitations on the scope of the patent. It should be noted that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An electric toothbrush head (100), characterized in that, Comprising: A brush head body (10), including a first accommodation cavity (11) with an installation opening on one side; A bristle member (20), installed at the installation opening and detachable relative to the brush head body (10); and A first trigger switch (30), disposed within the first accommodation cavity (11); A vibration transmission shaft (75), the vibration transmission shaft (75) being capable of transmitting the vibration generated by the motor (212) of the electric toothbrush (200). The vibration transmission shaft (75) is disposed on the brush head body (10), and the vibration transmission shaft (75) has electrical conductivity. One end of the vibration transmission shaft (75) is electrically connected to the first trigger switch (30), and the other end is used to be connected to the main control board (213) of the electric toothbrush body (210) of the electric toothbrush (200). The electric toothbrush head (100) is used to be connected to the electric toothbrush body (210); Wherein, the bristle member (20) can move relative to the brush head body (10) between a first position and a second position under an external force. The first trigger switch (30) can be separated from the bristle member (20) when the bristle member (20) is in the first position, and is triggered when the bristle member (20) is in the second position; the first trigger switch (30) can send an alarm signal when triggered; The electric toothbrush head (100) further includes a first electrical connection line (80), an electrical connection block (82), and a second elastic member (85). One end of the first electrical connection line (80) is electrically connected to the first trigger switch (30), the other end of the first electrical connection line (80) is connected to the electrical connection block (82), and one end of the electrical connection block (82) away from the first electrical connection line (80) is in contact with the vibration transmission shaft (75); the second elastic member (85) is compressed between the brush head body (10) and the electrical connection block (82); the second elastic member (85) is used to provide a pre-tightening force for the electrical connection block (82) and the vibration transmission shaft (75) to remain in contact.

2. The electric toothbrush head (100) according to claim 1, wherein, The electric toothbrush head (100) further includes an alarm member (40), and the alarm member (40) is communicatively connected to the first trigger switch (30); The alarm member (40) can respond to the alarm signal and emit an alarm prompt message.

3. The electric toothbrush head (100) according to claim 1, characterized in that, The electric toothbrush head (100) further includes a second trigger switch (60), the second trigger switch (60) is disposed within the first accommodation cavity (11). During the movement of the bristle member (20) relative to the brush head body (10), there is also a third position, and the third position is located between the first position and the second position. The second trigger switch (60) can be triggered when the bristle member (20) is in the third position; The second trigger switch (60) can send a vibration frequency signal when triggered.

4. The electric toothbrush head (100) according to claim 1, characterized in that, The electric toothbrush head (100) further includes a first elastic member (50). Both ends of the first elastic member (50) are respectively abutted against the brush head body (10) and the bristle member (20) to provide a pre-tightening force for the bristle member (20) to be held in the first position.

5. The electric toothbrush head (100) according to claim 4, characterized in that, The brush head body (10) is provided with a first positioning member (12). The first elastic member (50) cooperates with the first positioning member (12) to be positioned on the brush head body (10); and / or The bristle member (20) is provided with a second positioning member (21). The first elastic member (50) cooperates with the second positioning member (21) to be positioned on the bristle member (20).

6. The electric toothbrush head (100) according to claim 5, characterized in that, The bristle member (20) includes a bristle member body (22) and an elastic buckle (23). The elastic buckle (23) includes an elastic arm (231) and a buckle portion (232). One end of the elastic arm (231) is connected to the bristle member body (22), and the other end extends in a first direction away from the bristle member body (22). The buckle portion (232) protrudes from one side of the elastic arm (231) in a second direction. The buckle portion (232) can be abutted against the brush head body (10) under the action of the pre-tightening force of the first elastic member (50) so that the bristle member body (22) is limited to the brush head body (10); Wherein, the first direction intersects with the second direction.

7. The electric toothbrush head (100) according to claim 1, characterized in that, One of the brush head body (10) and the vibration transmission shaft (75) is provided with a positioning slot (751), and the other of the brush head body (10) and the vibration transmission shaft (75) is provided with a positioning protrusion (14). The positioning slot (751) cooperates with the positioning protrusion (14) to position the vibration transmission shaft (75) on the brush head body (10).

8. An electric toothbrush (200), characterized in that, An electric toothbrush head (100) according to any one of claims 1 to 7 and an electric toothbrush body (210) connected to the electric toothbrush head (100).

9. The electric toothbrush (200) according to claim 8, wherein, The electric toothbrush body (210) includes a body main body (211), a motor (212), and a main control board (213) both installed on the body main body (211); The motor (212) is controlled to provide a vibration force to the electric toothbrush head (100), and the first trigger switch (30) is communicatively connected to the main control board (213).

10. The electric toothbrush (200) according to claim 9, characterized in that, The motor (212) includes a vibration motor shaft (2121). The first trigger switch (30) is electrically connected to the main control board (213) through the vibration motor shaft (2121).

11. The electric toothbrush (200) according to claim 10, characterized in that, One end of the vibration transmission shaft (75) away from the first trigger switch (30) is docked with one end of the vibration motor shaft (2121).

12. The electric toothbrush (200) according to claim 10, characterized in that, The electric toothbrush body (210) further includes a conductive sheet (214) and a second electrical connection line (215). The conductive sheet (214) is attached to the vibration motor shaft (2121). One end of the second electrical connection line (215) is connected to the conductive sheet (214), and the other end is electrically connected to the main control board (213).

13. The electric toothbrush (200) according to claim 12, characterized in that, A stepped groove (2122) is provided on the outer side of the vibration motor shaft (2121), and the conductive sheet (214) is attached to the axially extending bottom wall of the stepped groove (2122).

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