Oral care device

Abstract

The utility model discloses an oral care device. The oral care device comprises a handle shell, a communication assembly arranged in the handle shell and a first circuit board. The handle shell comprises a metal handle barrel and a non-metal bottom cover, and the bottom cover is connected to the bottom end of the handle barrel. The communication assembly comprises a signal receiving and transmitting piece which is arranged corresponding to the bottom cover. The signal receiving and transmitting piece is used for transmitting signals to the outside of the handle shell and / or receiving signals outside the handle shell, and the bottom cover is used for allowing the signals transmitted by the signal receiving and transmitting piece and / or the signals received by the signal receiving and transmitting piece to pass through. The communication assembly is electrically connected with the first circuit board. The signal transceiving piece is arranged on one side close to the non-metal bottom cover, so that the influence of the metal handle barrel on the signal transceiving function of the antenna can be avoided, and the signal transmission quality and the signal strength are ensured. The signal transceiver and the bottom cover are correspondingly arranged, so that at least part of the signal transceiver area of the signal transceiver can be located in the range of the bottom cover.

Description

Technical Field

[0001] The present application relates to the field of oral cleaning, and more particularly, to an oral care device. Background Art

[0002] Oral care devices are electric devices that use a high-speed vibrating motor to rotate or vibrate the brush head to clean teeth. Depending on user needs, the device may be equipped with an antenna for transmitting and / or receiving external signals. This antenna can send operational information to a control terminal or cloud, or receive commands from the terminal or cloud. However, the signal transmission and / or reception range of antennas currently installed in oral care devices is easily blocked by internal structures, resulting in poor signal transmission efficiency. Utility Model Content

[0003] The embodiments of the present application provide an oral care device, which is at least used to solve the problem of poor antenna signal transmission efficiency in the oral care device.

[0004] The oral care device of the embodiment of the present application includes a handle shell, a communication component arranged in the handle shell, and a first circuit board. The handle shell includes a metal handle barrel and a non-metallic bottom cover, and the bottom cover is connected to the bottom end of the handle barrel. The communication component includes a signal transceiver, and the signal transceiver is correspondingly arranged to the bottom cover. The signal transceiver is used to send signals to the outside of the handle shell and / or receive signals from the outside of the handle shell, and the bottom cover is used for the signals sent by the signal transceiver and / or the signals received by the signal transceiver to pass through. The communication component is electrically connected to the first circuit board.

[0005] During signal transmission, metal can cause frequency deviation in the impedance of the signal transceiver, severely impacting its transceiver performance. Furthermore, metal can absorb and shield the antenna's signal, resulting in significant signal loss during transmission and making it difficult to accurately transmit information or commands. Therefore, placing the signal transceiver near the non-metallic bottom cover can prevent the metal handle from affecting the antenna's signal transceiver function, ensuring signal transmission quality and strength. The corresponding placement of the signal transceiver and bottom cover also ensures that at least a portion of the signal transceiver's signal receiving area is located within the bottom cover's perimeter.

[0006] In some embodiments, the distance between the signal transceiver and the bottom cover on the central axis of the handle shell is smaller than the wavelength of the signal sent and / or received by the signal transceiver.

[0007] When the distance between the signal transceiver and the bottom cover is less than the signal wavelength, the signal can be less reflected or scattered when it is emitted outward through the bottom cover or transmitted to the signal transceiver. On the one hand, it avoids excessive signal obstruction by the bottom cover and improves signal transmission efficiency. On the other hand, it can also improve signal quality and avoid information loss.

[0008] In some embodiments, the first circuit board includes a first end and a second end relative to each other in the direction of the central axis of the handle shell. Compared with the second end, the first end is closer to the bottom cover, and the signal transceiver is installed at the first end.

[0009] Placing the signal transceiver closer to the bottom cover can reduce the path length of the signal transmitted within the handle housing, thereby reducing signal loss from the signal transceiver. Furthermore, placing the signal transceiver closer to the bottom cover can reduce the relative distance from the external device capable of emitting the signal, thereby ensuring that the information conveyed by the external signal received by the signal transceiver is more complete.

[0010] In some embodiments, the oral care device further comprises a core assembly disposed within the handle housing, wherein the first end has a protrusion. In the direction of the central axis of the handle housing, the protrusion protrudes toward the bottom cover relative to the core assembly, and the signal transceiver is disposed on the protrusion.

[0011] Compared with the solution where the circuit board is not provided with a protrusion, the signal transceiver on the protrusion can be staggered with the core assembly so that the signal transceiver range can partially bypass the core assembly. On the one hand, it can avoid the core assembly blocking the signal propagation path of the signal transceiver receiving and / or sending signals. On the other hand, the protrusion extending toward the bottom cover is also used to make the signal transceiver provided on the protrusion closer to the bottom cover, thereby improving the signal transmission efficiency.

[0012] In some embodiments, the bottom cover includes a sealing portion and a connecting portion extending from the sealing portion, the sealing portion blocks the opening at the bottom end of the handle tube, the connecting portion extends into the handle tube and is connected to the handle tube, and the signal transceiver is arranged on the first circuit board and at least partially extends into the space enclosed by the sealing portion and the connecting portion.

[0013] The coupling portion can be used to mount the bottom cover on the handle tube, and the blocking portion is used to block the opening to isolate the internal structure of the oral care device from the outside, preventing moisture, dust, etc. from entering the oral care device. Because signals emitted by the signal transceiver can be transmitted through the blocking portion and the coupling portion respectively, if the signal transceiver is disposed in the portion of the first circuit board that at least partially extends into the blocking portion, the signal transceiver can be closer to the bottom cover, thereby improving signal transmission efficiency and reducing signal loss.

[0014] In some embodiments, the bottom cover includes a blocking portion and a coupling portion extending from the blocking portion, the blocking portion blocks the opening at the bottom end of the handle tube, and the outer peripheral wall of the coupling portion is connected to the handle tube by bonding.

[0015] When the joint is bonded to the handle tube, compared with the solution in which the joint is directly clamped to the handle tube, the distance between the inner wall of the blocking portion and the signal transceiver along the direction of the central axis of the handle shell is shorter, and the blocking portion can even be completely located inside the handle tube, so that the installation position of the first circuit board remains unchanged. The relative distance between the signal transceiver and the blocking portion of the bottom cover is shorter, and the signal transceiver is closer to the blocking portion, thereby improving signal transmission efficiency.

[0016] In some embodiments, the communication component further includes a second circuit board, the signal transceiver is disposed on the second circuit board, and the signal transceiver is electrically connected to the first circuit board via the second circuit board and a conductive member.

[0017] When the signal transceiver is provided on an independent second circuit board, the signal transceiver can be either an independent structure mounted on the second circuit board or a circuit structure integrally provided with the second circuit board capable of transmitting and receiving signals. When the signal transceiver is provided on an independent second circuit board, the second circuit board and the signal transceiver can be provided at any location within the handle housing capable of receiving or transmitting signals, providing greater flexibility in the placement of the signal transceiver.

[0018] In some embodiments, the signal transceiver is disposed on the bottom cover or the signal transceiver extends to the bottom cover.

[0019] The signal transceiver can be directly set on the bottom cover so that the distance between the signal end of the signal transceiver and the bottom cover is shorter, or the signal transceiver can be set at other positions in the handle tube, and the signal end of the signal transceiver can be extended to the bottom cover, so that the distance between the signal end of the signal transceiver and the bottom cover is closer, and the signal transmission effect is better.

[0020] In certain embodiments, the oral care device further comprises an inner liner and a core assembly. The inner liner is disposed within and connected to the handle barrel, and the bottom cover is connected to the inner liner and / or the bottom cover is connected to the handle barrel. The core assembly is disposed within and connected to the inner liner.

[0021] Because the handle barrel is made of metal, the internal structure of the oral care device is difficult to secure within it, and the cost of manufacturing a securing structure within the metal handle barrel is high. A non-metallic liner can be used to connect the internal structure of the oral care device to the bottom cover, reducing manufacturing costs while also protecting the internal structure of the oral care device from wobbling within the handle barrel.

[0022] In some embodiments, the communication component further includes a matching circuit and a main chip. The matching circuit is disposed on a first circuit board. The main chip is disposed on the first circuit board and spaced apart from the signal transceiver, and is electrically connected to the signal transceiver via the matching circuit.

[0023] The main chip can read the signal received by the signal transceiver and control the signal transceiver to send a signal. At the same time, the signal transceiver arranged on the board can also occupy a smaller space in the handle shell and avoid being blocked by other structures in the handle shell.

[0024] In some embodiments, the first circuit board includes a first end and a second end relative to each other in the direction of the central axis of the handle shell, and the first end is closer to the bottom cover than the second end; compared with the main chip, the signal transceiver and the matching circuit are both closer to the first end.

[0025] Placing the matching circuit between the main chip and the signal transceiver minimizes the mounting space occupied by the matching circuit on the first circuit board, allowing for closer installation and a more rational layout of the electrical components on the first circuit board. Furthermore, positioning the signal transceiver closer to the first end prevents the signal transceiver from obstructing its signal transmission and reception path when the user holds the oral care device.

[0026] 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

[0027] 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:

[0028] Figure 1 is a perspective schematic diagram of an oral care device according to some embodiments of the present application;

[0029] Figure 2 yes Figure 1 An exploded schematic diagram of a portion of the structure of the oral care device shown;

[0030] Figure 3 yes Figure 1 An exploded schematic diagram of a portion of the structure of the oral care device shown;

[0031] Figure 4 It is a schematic diagram of the exploded structure of part of the oral care device of other embodiments of the present application.

[0032] Description of main component symbols:

[0033] 100. Oral care device; A. Central axis; X. Direction of central axis; Y. Direction perpendicular to central axis; 10. Handle shell; 11. Handle tube; 111. Top end of handle tube; 113. Bottom end of handle tube; 115. Opening; 13. Bottom cover; 131. Sealing portion; 133. Joint; 30. Communication component; 31. Signal transceiver; 33. Second circuit board; 35. Conductive component; 37. Matching circuit; 39. Main chip; 50. First circuit board; 501. First end; 503. Second end; 51. Protrusion; 70. Movement component; 90. Lining. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and should not be understood as limiting the embodiments of the present application.

[0035] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. In an example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements.

[0037] See also Figure 1 and Figure 3The oral care device 100 of the present application includes a handle shell 10, a communication component 30 provided in the handle shell 10, and a first circuit board 50. The handle shell 10 includes a metal handle tube 11 and a non-metallic bottom cover 13, and the bottom cover 13 is connected to the bottom end 113 of the handle tube 11. The communication component 30 includes a signal transceiver 31, and the signal transceiver 31 is correspondingly arranged to the bottom cover 13. The signal transceiver 31 is used to send signals to the outside of the handle shell 10 and / or receive signals from the outside of the handle shell 10, and the bottom cover 13 is used for the signals sent by the signal transceiver 31 and / or the signals received by the signal transceiver 31 to pass through. The communication component 30 is electrically connected to the first circuit board 50.

[0038] In the oral care device 100 of the present embodiment, positioning the signal transceiver 31 near the non-metallic bottom cover 13 prevents the metallic handle tube 11 from interfering with the antenna's signal transceiver function, thereby ensuring signal transmission quality and strength. The alignment of the signal transceiver 31 with the bottom cover 13 also ensures that at least a portion of the signal transceiver area of the signal transceiver 31 is located within the area where the bottom cover 13 is located.

[0039] The oral care device 100 will be further described below with reference to the accompanying drawings.

[0040] See also Figure 2 and Figure 3In certain embodiments, the handle housing 10 is generally a housing structure capable of accommodating a portion of the oral care device 100. The material of the handle housing 10 includes, but is not limited to, metal, plastic, silicone, or rubber. The handle housing 10 includes a top and a bottom, which are disposed opposite each other. The handle housing 10 has a central axis A, which is the axis that divides the handle housing 10 into two relatively symmetrical parts. If the handle housing 10 is an axisymmetric three-dimensional structure, the central axis A of the handle housing 10 passes through the center of the top and the center of the bottom. That is, the direction X of the central axis A of the handle housing 10 can be a straight line extending from the center of the top to the center of the bottom, or from the center of the bottom to the center of the top, without limitation. The direction Y perpendicular to the central axis A of the handle housing 10 can be a straight line extending from any opposite sides of the handle housing 10, without limitation. 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 direction X of the central axis A of the handle housing 10, from the bottom end of the handle housing 10 to the top end of the handle housing 10, the outer contour of the cross section of the handle housing 10 gradually changes. For example, the outer contour of the cross section of the handle housing 10 first remains unchanged and then gradually decreases, first increases and then decreases, or changes multiple times. In other embodiments, along the direction X of the central axis A of the handle housing 10, from the bottom end of the handle housing 10 to the top end of the handle housing 10, the outer contour of the cross section of the handle housing 10 remains unchanged.

[0041] Specifically, in some embodiments, the handle barrel 11 includes a top end 111 (i.e., the top end of the handle shell 10) and a bottom end 113 (i.e., the bottom end of the handle shell 10) facing each other, and an opening 115 is provided at the bottom end. Part of the structure of the oral care device 100 can extend into the handle barrel 11 from the opening 115 and be installed in the handle barrel 11. The bottom cover 13 can be provided at the opening 115 and block the opening 115 to prevent external dust, water vapor, liquid or foam from entering the handle barrel 11 and causing damage to part of the structure of the oral care device 100 in the handle barrel 11. The handle barrel 11 is made of metal, and the materials of the handle barrel 11 include but are not limited to aluminum, iron and alloys thereof. During the propagation of the signal, the metal will cause the impedance of the signal transceiver 31 to have a frequency deviation and seriously affect the transceiver performance of the signal transceiver 31. At the same time, the metal will also absorb and shield the signal sent by the signal transceiver 31 or the signal transmitted from the outside to the signal transceiver 31. Therefore, the metal handle tube 11 can cause significant signal loss during transmission, making it difficult to accurately transmit information or instructions. The bottom cover 13 is made of a non-metallic material, including but not limited to plastic, silicone, or rubber. Signals emitted by the signal transceiver 31 or signals transmitted from the outside to the signal transceiver 31 can pass through the bottom cover 13. Therefore, if the signal transceiver 31 is positioned closer to the bottom cover 13 relative to the handle tube 11, the signal transceiver area of the signal transceiver 31 can overlap more with the bottom cover 13, reducing the obstruction and shielding effect of the metal handle tube 11 on the signal.

[0042] More specifically, in some embodiments, the bottom cover 13 includes a blocking portion 131 and a connecting portion 133 extending from the blocking portion 131. The blocking portion 131 is generally a plate-shaped structure provided at one end of the connecting portion 133. The blocking portion 131 can block the opening 115 of the bottom end 113 of the handle tube 11 to isolate the internal structure of the oral care device 100 from the outside and prevent moisture or dust from entering the oral care device 100. In some embodiments, such as Figure 2 As shown, the coupling portion 133 is generally a hook structure or a plate structure that extends into the handle tube 11 and can be connected to the handle tube 11, so that the bottom cover 13 can be installed on the handle tube 11. In other embodiments, such as Figure 4 As shown, the coupling portion 133 is generally a cylindrical structure with a cavity inside.

[0043] More specifically, in some embodiments, the coupling portion 133 is mounted to the bottom end 113 of the handle barrel 11 by means of a threaded connection or a snap-fit connection, and a portion of the sealing portion 131 is located outside the handle barrel 11. In this case, the sealing portion 131 effectively seals the space within the handle barrel 11. In other embodiments, the outer peripheral wall of the coupling portion 133 is connected to the handle barrel 11 by means of hot melt or adhesive bonding, and the sealing portion 131 can fully extend into the handle barrel 11 and abut against the inner peripheral wall of the handle barrel 11. When the coupling portion 133 is bonded to the handle tube 11, compared with a solution in which the coupling portion 133 is directly clamped to the handle tube 11 or the coupling portion 133 is directly threadedly connected to the handle tube 11, the distance between the inner wall of the blocking portion 131 and the signal transceiver 31 along the direction X of the central axis A of the handle shell 10 is shorter, and the blocking portion 131 can even be completely located inside the handle tube 11, so that when the installation position of the signal transceiver 31 relative to the handle tube 11 remains unchanged, the relative distance between the signal transceiver 31 and the blocking portion 131 of the bottom cover 13 is shorter, and the signal transceiver 31 is closer to the blocking portion 131, thereby improving signal transmission efficiency.

[0044] See also Figure 3 and Figure 4 In some embodiments, the communication component 30 is generally capable of sending signals to the outside according to instructions or receiving and reading signals from an external device to the oral care device 100 ( Figure 1 The communication component 30 may be a structure that receives a signal (shown) from a user and obtains instructions. Types of communication component 30 include, but are not limited to, a WiFi module, a Bluetooth module, or a Zigbee module. The first circuit board 50 is a structure that is electrically connected to the communication component 30 to supply power to the communication component 30. In some embodiments, the signal transceiver 31 of the communication component 30 is disposed on the first circuit board 50 and is directly electrically connected to the first circuit board 50. In other embodiments, the signal transceiver 31 is indirectly electrically connected to the first circuit board 50.

[0045] Specifically, please combine Figure 2 In some embodiments, the signal transceiver 31 is an electrical component or a group of electrical components for receiving external signals and sending signals to the outside. The signal transceiver 31 can also be a metal antenna or a glass fiber antenna. The types of the signal transceiver 31 include but are not limited to IPEX external antennas, onboard antennas or ceramic antennas. Among them, the IPEX external antenna is a structure that is separately installed in the handle shell 10 and can be connected to the external antenna, and the signal quality it can provide is better. The onboard antenna can use PCB as a medium to set the antenna directly on the PCB board. The ceramic antenna is a signal transceiver element that is separately set in the handle shell 10. Its signal end is located in the ceramic shell, which is not easily damaged by being touched and is easy to assemble.

[0046] Specifically, in certain embodiments, the signal transceiver 31 is disposed within the handle housing 10, and the distance between the signal transceiver 31 and the bottom cover 13 on the central axis A of the handle housing 10 is less than the wavelength of the signal transmitted and / or received by the signal transceiver 31. When the distance between the signal transceiver 31 and the bottom cover 13 is less than the signal wavelength, the signal is less likely to be reflected or scattered when it is transmitted outward through the bottom cover 13 or to the signal transceiver 31. This, on the one hand, prevents the bottom cover 13 from excessively blocking the signal, thereby improving signal transmission efficiency, and on the other hand, improves signal quality and prevents information loss.

[0047] More specifically, in some embodiments, the signal transceiver 31 is directly disposed on the bottom cover 13, in which case the distance between the signal end of the signal transceiver 31 and the bottom cover 13 is relatively small. In other embodiments, the signal transceiver 31 can be disposed elsewhere within the handle tube 11, and the signal end of the signal transceiver 31 can extend to the bottom cover 13, thereby shortening the distance between the signal end of the signal transceiver 31 and the bottom cover 13 and improving signal transmission.

[0048] Furthermore, in certain embodiments, the communication component 30 may also include a second circuit board 33, and the signal transceiver 31 is arranged on the second circuit board 33. In this case, the signal transceiver 31 and the second circuit board 33 together constitute an independent structure. In the case where the signal transceiver 31 is arranged on an independent second circuit board 33, the signal transceiver 31 can be an independent structure installed on the second circuit board 33, or it can be a circuit structure capable of transmitting and receiving signals that is integrated with the second circuit board 33. In the case where the signal transceiver 31 is damaged or aged, it is only necessary to replace the second circuit board 33, which facilitates the replacement of a new signal transceiver 31. In addition, in the case where the signal transceiver 31 is arranged on an independent second circuit board 33, the second circuit board 33 and the signal transceiver 31 can be arranged at any position in the handle shell 10 that can receive or send signals, and the setting position of the signal transceiver 31 is more flexible.

[0049] Furthermore, in some embodiments, the communication component 30 may also include a conductive member 35, a matching circuit 37, and a main chip 39. The conductive member 35 is a structure that can electrically connect the signal transceiver 31, the matching circuit 37, and the main chip 39. The conductive member 35 can be an independent wire or a circuit structure built into the first circuit board 50 and / or the second circuit board 33, and there is no limitation here. The main chip 39 is a structure that controls the signal transceiver 31 and the matching circuit 37 and can receive and analyze the signal transmitted by the signal transceiver 31. The main chip 39 is arranged on the first circuit board 50 and is separated from the signal transceiver 31. The main chip 39 is electrically connected to the signal transceiver 31 through the matching circuit 37. The main chip 39 can read the signal received by the signal transceiver 31 and control the signal transceiver 31 to send a signal. The matching circuit 37 is located between the main chip 39 and the signal transceiver 31. The matching circuit 37 includes multiple circuit components and electrically connects the signal transceiver 31 and the main chip 39 via the conductive member 35. This allows command signals from the main chip 39 to be transmitted to the signal transceiver 31 and / or signals received by the signal transceiver 31 to be transmitted to the main chip 39, enabling the main chip 39 to control the operation of other components. If the signal transceiver 31 is located on the first circuit board 50, the conductive member 35 is a circuit structure built into the first circuit board 50, and the matching circuit 37 and the main chip 39 are both mounted on the first circuit board 50. Furthermore, the signal transceiver 31 located on the board also occupies less space within the handle housing 10 and prevents other structures within the handle housing 10 from obstructing the signal transceiver 31. If the signal transceiver 31 is located on the second circuit board 33, the main chip 39 is mounted on the first circuit board 50, and the matching circuit 37 can be mounted on either the first circuit board 50 or the second circuit board 33. The conductive member 35 is a wire used to connect the first circuit board 50 and the second circuit board 33, or the second circuit board 33 is a flexible circuit board that can be directly connected to the first circuit board 50. The signal transceiver 31 is electrically connected to the first circuit board 50 through the second circuit board 33 and the conductive member 35. The signal transceiver 31 provided on the second circuit board 33 can be installed at different locations within the handle housing 10 according to usage requirements.

[0050] Furthermore, in some embodiments, the first circuit board 50 includes a first end 501 and a second end 503, relative to each other, in the direction X of the central axis A of the handle housing 10. The first end 501 is closer to the bottom cover 13 than the second end 503. The signal transceiver 31 is mounted on the first end 501 and located closer to the bottom cover 13. When the signal transceiver 31 is located at the first end 501, the path length of the signal transmission within the handle housing 10 is shortened, thereby reducing signal loss from the signal transceiver 31. Furthermore, positioning the signal transceiver 31 closer to the bottom cover 13 reduces the relative distance from external devices capable of transmitting signals, thereby ensuring that the information conveyed by the external signals received by the signal transceiver 31 is more complete. When the main chip 39, matching circuit 37, and signal transceiver 31 are all located on the first circuit board 50, the signal transceiver 31 and matching circuit 37 are closer to the first end 501 than the main chip 39. Placing the matching circuit 37 between the main chip 39 and the signal transceiver 31 minimizes the mounting space occupied by the matching circuit 37 on the first circuit board 50, thereby enabling closer installation and a more rational layout of the electrical components on the first circuit board 50. Furthermore, positioning the signal transceiver 31 closer to the first end 501 of the first circuit board 50 prevents the signal transceiver 31 from obstructing its signal transmission and reception path when the user holds the oral care device 100.

[0051] Furthermore, in certain embodiments, when the signal transceiver 31 is disposed on the first circuit board 50, at least a portion of the structure of the signal transceiver 31 disposed on the first circuit board 50 can extend into the space enclosed by the blocking portion 131 and the connecting portion 133, thereby enabling at least a portion of the structure of the signal transceiver 31 to be disposed within the space enclosed by the blocking portion 131 and the connecting portion 133. When the signal transceiver 31 is disposed on the second circuit board 33, at least a portion of the structure of the signal transceiver 31 disposed on the second circuit board 33 can extend into the space enclosed by the blocking portion 131 and the connecting portion 133, thereby enabling at least a portion of the structure of the signal transceiver 31 to be disposed within the space enclosed by the blocking portion 131 and the connecting portion 133. Since the signal emitted by the signal transceiver 31 can be transmitted through the blocking portion 131 and the coupling portion 133 respectively, when the signal transceiver 31 is arranged in the portion of the first circuit board 50 that at least partially extends into the blocking portion 131, the signal transceiver 31 can be closer to the bottom cover 13, thereby improving signal transmission efficiency and reducing signal loss.

[0052] See also Figure 1 and Figure 3In certain embodiments, the oral care device 100 further includes a core assembly 70 disposed within the handle housing 10. The core assembly 70 is a component installed within the handle housing 10 and capable of supporting and mounting the first circuit board 50 and other structures of the oral care device 100. In some embodiments, the core assembly 70 is detachably mounted to the inner wall of the handle housing 10, and the mounting methods include but are not limited to threaded connection, snap connection, or bolt connection. In other embodiments, the core assembly 70 is non-detachably fixed to the inner wall of the handle housing 10, and the fixing methods include but are not limited to hot melt connection, gluing connection, or welding.

[0053] Specifically, in some embodiments, the first circuit board 50 further includes a protrusion 51, which is a partial structure formed by the first circuit board 50 extending in the direction X of the central axis A of the handle shell 10 toward the bottom cover 13. The protrusion 51 protrudes toward the bottom cover 13 relative to the core assembly 70, that is, the protrusion 51 and the core assembly 70 are staggered and do not overlap with each other along the direction Y perpendicular to the central axis A of the handle shell 10. The signal transceiver 31 is provided on the protrusion 51. Compared with a solution in which the circuit board is not provided with the protrusion 51, the signal transceiver 31 on the protrusion 51 can be staggered with the core assembly 70, so that the signal receiving and transmitting range of the signal transceiver 31 can partially bypass the core assembly 70. On the one hand, since a metal movement is provided inside the movement assembly 70, the signal transceiver 31 is staggered with the movement assembly 70 to avoid the movement assembly 70 blocking the signal propagation path of the signal transceiver 31 receiving and / or sending signals. On the other hand, the protrusion 51 extending toward the bottom cover 13 is also used to make the signal transceiver 31 provided on the protrusion 51 closer to the bottom cover 13, thereby improving the signal transmission efficiency.

[0054] See also Figure 2 and Figure 3 In some embodiments, the oral care device 100 further includes an inner liner 90. The inner liner 90 is generally a cylindrical structure disposed in and connected to the handle barrel 11. The material of the inner liner 90 includes but is not limited to non-metallic materials such as plastic, silicone or rubber. Compared with the metal handle barrel 11, the inner liner 90 can be more firmly connected to the oral care device 100 ( Figure 1 ) structure, reducing the internal structure of the oral care device 100 ( Figure 1) in the handle barrel 11. In some embodiments, the liner 90 can be integrally formed in the handle barrel 11. In other embodiments, the liner 90 is a structure that is installed in the handle barrel 11 after being separately formed. The outer contour size of the cross section of the liner 90 is less than or equal to the inner contour size of the cross section of the handle barrel 11, so that the liner 90 can be installed in the handle barrel 11. The core assembly 70 is disposed in the liner 90 and connected to the liner 90. Since the handle barrel 11 is made of metal, the internal structure of the oral care device 100 is difficult to fix in the metal handle barrel 11, and the cost of making a fixed structure in the metal handle barrel 11 is high. The liner 90 made of non-metallic material can be used to connect the internal structure of the oral care device 100 and the bottom cover 13, which on the one hand reduces the manufacturing cost of the oral care device 100, and on the other hand can avoid the oral care device 100 ( Figure 1 The internal structure of the oral care device 100 is shaken in the handle tube 11 to protect the internal structure of the oral care device 100.

[0055] Furthermore, in some embodiments, the bottom cover 13 is connected to the lining 90, and the materials of the bottom cover 13 and the lining 90 may be the same or different. The bottom cover 13 and the lining 90 may be integrally formed or separately formed. In the case where the bottom cover 13 and the lining 90 are separately formed, the bottom cover 13 and the lining 90 may be connected by a non-detachable method such as a hot melt connection or an adhesive connection, or may be connected by a detachable method such as a threaded connection, a snap connection or a bolt connection, and there is no limitation here. In other embodiments, the bottom cover 13 is connected to the handle tube 11. In one example, the coupling portion 133 of the bottom cover 13 can extend into the handle tube 11 and be connected to the handle tube 11 and the lining 90 at the same time. In another example, the coupling portion 133 of the bottom cover 13 is only connected to the handle tube 11 and is separated from the lining 90.

[0056] In summary, in the oral care device 100 of the present application, positioning the signal transceiver 31 near the non-metallic bottom cover 13 prevents the metallic handle tube 11 from interfering with the antenna's signal transceiver function, thereby ensuring signal transmission quality and strength. The corresponding positioning of the signal transceiver 31 and the bottom cover 13 also ensures that at least a portion of the signal transceiver area of the signal transceiver 31 is located within the area where the bottom cover 13 is located.

[0057] In the description of this specification, the reference terms "certain embodiments", "in an example", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0058] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An oral care device, characterized in that include: A handle shell, the handle shell comprising a metal handle tube and a non-metal bottom cover, the bottom cover being connected to the bottom end of the handle tube; a communication component provided in the handle shell, the communication component including a signal transceiver, the signal transceiver being provided corresponding to the bottom cover, the signal transceiver being used to send signals to the outside of the handle shell and / or receive signals from the outside of the handle shell, and the bottom cover being used to allow the signals sent by the signal transceiver and / or received by the signal transceiver to pass through; and A first circuit board is provided in the handle shell, and the communication component is electrically connected to the first circuit board.

2. The oral care device according to claim 1, wherein The distance between the signal transceiver and the bottom cover on the central axis of the handle shell is smaller than the wavelength of the signal sent and / or received by the signal transceiver.

3. The oral care device according to claim 1, wherein The first circuit board includes a first end and a second end relative to each other in the direction of the central axis of the handle shell. Compared with the second end, the first end is closer to the bottom cover, and the signal transceiver is installed at the first end.

4. The oral care device according to claim 3, wherein The oral care device further comprises: The core assembly is arranged in the handle shell, and the first end has a protrusion. In the direction of the central axis of the handle shell, the protrusion protrudes toward the bottom cover compared to the core assembly, and the signal transceiver is arranged on the protrusion.

5. The oral care device according to claim 1, wherein The bottom cover includes a sealing portion and a connecting portion extending from the sealing portion, the sealing portion blocks the opening at the bottom end of the handle tube, the connecting portion extends into the handle tube and is connected to the handle tube, and the signal transceiver is arranged on the first circuit board and at least partially extends into the space enclosed by the sealing portion and the connecting portion.

6. The oral care device according to claim 1, wherein The bottom cover includes a blocking portion and a connecting portion extending from the blocking portion. The blocking portion blocks the opening at the bottom end of the handle tube. The outer peripheral wall of the connecting portion is connected to the handle tube by bonding.

7. The oral care device according to claim 6, wherein: The communication component further includes: The second circuit board, the signal transceiver is arranged on the second circuit board, and the signal transceiver is electrically connected to the first circuit board through the second circuit board and the conductive member.

8. The oral care device according to claim 1, wherein The signal transceiver is arranged on the bottom cover; or The signal transceiver extends to the bottom cover.

9. The oral care device according to claim 1, wherein The oral care device further comprises: an inner lining, the inner lining being disposed in the handle tube and connected to the handle tube, the bottom cover being connected to the inner lining and / or the bottom cover being connected to the handle tube; and A core assembly is arranged in the lining and connected to the lining.

10. The oral care device according to claim 1, wherein The communication component further includes: a matching circuit, the matching circuit being disposed on the first circuit board; and A main chip is provided on the first circuit board and is spaced apart from the signal transceiver. The main chip is electrically connected to the signal transceiver through the matching circuit.

11. The oral care device according to claim 10, wherein The first circuit board includes a first end and a second end relative to each other in the direction of the central axis of the handle shell. Compared with the second end, the first end is closer to the bottom cover; compared with the main chip, the signal transceiver and the matching circuit are both closer to the first end.

Images