Electric toothbrush

Abstract

The utility model discloses an electric toothbrush which comprises a handle cylinder, a main control board, a motor, an electric function assembly, a conductive assembly and a protection piece, the motor comprises a motor shaft, at least one part of the motor shaft extends out of the handle cylinder to be matched with a brush head of the electric toothbrush, and a wiring space is defined in the motor shaft; the electric functional assembly comprises an electric connecting part and / or an electric functional part exposed out of the motor shaft, the electric connecting part is suitable for being electrically connected with the brush head, and the electric functional part is suitable for acting on the brush head; at least part of the conductive assembly is located in the wiring space, the protection piece is arranged in the wiring space, the protection piece is used for isolating the motor shaft from the conductive assembly, and / or the protection piece is used for positioning the conductive assembly so that the conductive assembly located in the wiring space and the motor shaft can be relatively static. According to the electric toothbrush, friction between the motor shaft and the conductive assembly can be avoided when the motor shaft moves, the conductive assembly is prevented from being damaged, normal work of the electric toothbrush is ensured, and the service life of the electric toothbrush can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of oral cleaning equipment, in particular to an electric toothbrush. Background Art

[0002] In the related art, an electric toothbrush is provided with a motor.

[0003] In some existing technologies, the motor shaft of the motor and the brush head are electrically connected through a power connection structure to drive the brush head to move. In other existing technologies, the motor shaft of the motor drives the brush head to move. However, since the motor shaft or the connection between the motor shaft and the brush head moves at a high frequency during operation, the power connection structure of the brush head and the motor shaft are prone to poor contact. There is also the problem of the electric toothbrush not being able to work normally due to failure of the motor shaft's own structure. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an electric toothbrush. The electric toothbrush designed according to the utility model can avoid friction between the motor shaft and the conductive component when the motor shaft moves, avoid damage to the conductive component, ensure the normal operation of the electric toothbrush, and extend the service life of the electric toothbrush.

[0005] According to the utility model, the electric toothbrush includes: a handle barrel and a main control board, wherein the main control board is arranged in the handle barrel; a motor, wherein the motor is arranged in the handle barrel, wherein the motor includes a motor shaft, wherein at least a portion of the motor shaft extends out of the handle barrel to cooperate with the brush head of the electric toothbrush, wherein the motor shaft is a hollow member to define a wiring space therein; an electrical function component, wherein the electrical function component includes an electrical connection portion and / or an electrical function component exposed to the motor shaft, wherein the electrical connection portion is suitable for being electrically connected to the brush head, and wherein the electrical function component is suitable for taking effect on the brush head; a conductive component, wherein at least a portion of the conductive component is located in the wiring space, wherein the conductive component is electrically connected to the electrical function component and the main control board, respectively; and a protective component, wherein the protective component is arranged in the wiring space, wherein the protective component is used to isolate the motor shaft and the conductive component, and / or wherein the protective component is used to position the conductive component so that the conductive component and the motor shaft located in the wiring space are relatively stationary.

[0006] According to the electric toothbrush of the present invention, at least part of the conductive components are arranged in the routing space inside the motor shaft, and a protective member is provided between the conductive components and the motor shaft to separate the conductive components and the motor shaft. The conductive components and the motor shaft can also be kept relatively still to avoid damage to the conductive components caused by friction between the motor shaft and the conductive components when the motor shaft moves, thereby ensuring the normal operation of the electric toothbrush, extending the service life of the electric toothbrush, and improving the user experience.

[0007] According to some embodiments of the present invention, the protective member is disposed outside the conductive component to separate the conductive component from the motor shaft.

[0008] According to some embodiments of the present invention, at least a portion of the protective member that is opposite to the conductive component is formed as a flexible member.

[0009] According to some embodiments of the present invention, the protective member is formed as a solidified colloid filling the wiring space.

[0010] According to some embodiments of the present invention, the protective member is filled in the wiring space except the conductive component.

[0011] According to some embodiments of the present invention, the protective member is disposed at the end of the motor shaft away from the electrical functional component, and the protective member positions the conductive component.

[0012] According to some embodiments of the utility model, the conductive component is fixedly connected to the electrical functional component, and the connection between the conductive component and the electrical functional component is covered with an insulating adhesive layer, and / or the conductive component is fixedly connected to the main control board, and the connection between the conductive component and the main control board is covered with an insulating adhesive layer.

[0013] According to some embodiments of the utility model, the conductive component includes a conductive wire, one end of the conductive wire is electrically connected to the electrical functional component and the other end extends out of the wiring space to be electrically connected to the main control board, and the length of the portion of the conductive wire extending out of the wiring space is greater than the distance between the end of the motor shaft and the main control board.

[0014] According to some embodiments of the utility model, the conductive component includes a conductive wire and a contact piece, one end of the conductive wire is electrically connected to the electrical functional component, the other end of the conductive wire is electrically connected to the contact piece, and the contact piece is in sliding contact and conductive connection with the main control board.

[0015] According to some embodiments of the present invention, a fixing piece is provided at the end of the motor shaft, the other end of the conductive wire is mounted to the fixing piece, and the contact piece is mounted to the fixing piece.

[0016] According to some embodiments of the present invention, the electrical functional component comprises at least two electrical connectors, the at least two electrical connectors are nested and an insulating member is provided between two adjacent electrical connectors, and each electrical connector is provided with the electrical connection portion.

[0017] According to some embodiments of the present invention, the motor shaft defines one of the power connection members.

[0018] According to some embodiments of the utility model, the electrical functional component includes an insulating assembly and a circuit board, the insulating assembly is mounted to the motor shaft, the circuit board is mounted to the insulating assembly and the circuit board is provided with the electrical connection portion, and the conductive component is electrically connected to the circuit board.

[0019] According to some embodiments of the present utility model, the electrical functional component includes an insulating sleeve and an electrical functional component, the insulating sleeve is placed on the end of the motor shaft, and the electrical functional component is fixed to the insulating sleeve.

[0020] To sum up, according to the utility model, the electric toothbrush arranges at least part of the conductive components in the wiring space inside the motor shaft, and provides a protective member between the conductive components and the motor shaft to avoid damage to the conductive components caused by friction between the motor shaft and the conductive components when the motor shaft moves, thereby ensuring the normal operation of the electric toothbrush and extending the service life of the electric toothbrush.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is an overall structural diagram of an electric toothbrush according to an embodiment of the utility model.

[0024] Figure 2 It is an exploded view of an electric toothbrush according to an embodiment of the utility model.

[0025] Figure 3 It is a cross-sectional view of a brush head according to an embodiment of the utility model.

[0026] Figure 4 It is a cross-sectional view of the lower structure of an electric toothbrush according to an embodiment of the utility model.

[0027] Figure 5 It is a partial cross-sectional view of the lower structure of an electric toothbrush according to an embodiment of the utility model.

[0028] Figure 6 It is a partial cross-sectional view of the lower structure of an electric toothbrush according to an embodiment of the utility model.

[0029] Figure 7 It is a structural diagram of a motor according to an embodiment of the utility model.

[0030] Figure 8 It is a structural diagram of a motor shaft according to an embodiment of the utility model.

[0031] Fig. 9 It is an exploded view of a motor shaft according to an embodiment of the utility model.

[0032] Fig.10 It is a structural diagram of the motor shaft according to an embodiment of the utility model.

[0033] Fig.11 It is a cross-sectional view of the motor shaft according to an embodiment of the utility model.

[0034] Reference numerals:

[0035] 1000. Electric toothbrush;

[0036] 100, handle tube;

[0037] 200, main control board;

[0038] 300, motor; 310, motor shaft; 310a, wiring space;

[0039] 400, electrical functional component; 410, electrical connection part; 430, electrical connection part; 440, insulating part; 450, insulating assembly part; 460, circuit board;

[0040] 510, conductive wire;

[0041] 610, solidifying colloid;

[0042] 700, brush head; 700a, matching space;

[0043] 900. Power supply components. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] In the related art, an electric toothbrush is provided with a motor.

[0050] In some existing technologies, the motor shaft of the motor and the brush head are electrically connected through a power connection structure to drive the brush head to move. In other existing technologies, the motor shaft of the motor drives the brush head to move. However, since the motor shaft or the connection between the motor shaft and the brush head moves at a high frequency during operation, the power connection structure of the brush head and the motor shaft are prone to poor contact. There is also the problem of the electric toothbrush not being able to work normally due to failure of the motor shaft's own structure.

[0051] Reference below Figure 1-Figure 11 An electric toothbrush 1000 according to an embodiment of the present invention is described.

[0052] like Figure 1-Figure 11As shown, the electric toothbrush 1000 according to the utility model includes: a handle barrel 100, a main control board 200, a motor 300, an electric function component 400, a conductive component and a protective member, the main control board 200 is arranged in the handle barrel 100; the motor 300 is arranged in the handle barrel 100, the motor 300 includes a motor shaft 310, at least a part of the motor shaft 310 extends out of the handle barrel 100 to cooperate with the brush head 700 of the electric toothbrush 1000, and the motor shaft 310 is a hollow member to define a wiring space 310a therein; the electric function component 400 includes a conductive component 400 exposed to the electric The electrical connection part 410 and / or the electrical functional part of the machine shaft 310, the electrical connection part 410 is suitable for being electrically connected to the brush head 700, and the electrical functional part is suitable for taking effect on the brush head 700; at least part of the conductive component is located in the wiring space 310a, and the conductive component is electrically connected to the electrical functional component 400 and the main control board 200 respectively; the protective part is arranged in the wiring space 310a, and the protective part is used to isolate the motor shaft 310 and the conductive component, and / or the protective part is used to position the conductive component so that the conductive component and the motor shaft 310 located in the wiring space 310a are relatively stationary.

[0053] Specifically, the electric toothbrush 1000 includes an upper structure and a lower structure that are detachably connected, wherein the upper structure includes a brush head 700, and the lower structure includes a handle tube 100. The motor shaft 310 of the motor 300 extends out of the handle tube 100 to cooperate with the brush head 700. When the motor 300 is working, it can drive the brush head 700 to move.

[0054] Here, the motor shaft 310 is a hollow part to define a wiring space 310a inside the motor shaft 310. When the electric function component 400 is exposed on the motor shaft 310, it can be constructed as an electrical connection part 410, and a conductive component suitable for conducting electricity can be arranged in the wiring space 310a, and one end of the conductive component is electrically connected to the electrical connection part 410, and the other end of the conductive component can be electrically connected to the main control board 200. When the motor shaft 310 cooperates with the brush head 700, the conductive component can be electrically connected to the brush head 700 through the electrical connection part 410 to drive the brush head 700 to move; when the electric function component 400 is constructed as an electric function part, the conductive component in the wiring space 310a can be electrically connected to the electric function part, and the main control board 200 controls the movement of the electric function part to drive the brush head 700 to move.

[0055] More specifically, the motor shaft 310 is a hollow shaft, and at least part of the conductive component is passed through the wiring space 310a inside the motor shaft 310. To avoid collision between the conductive component and the motor shaft 310, a protective member can be set between the conductive component and the motor shaft 310 to separate the conductive component and the motor shaft 310, or to make the conductive component and the motor shaft 310 relatively still.

[0056] According to the electric toothbrush 1000 of the present invention, at least part of the conductive components are arranged in the wiring space 310a inside the motor shaft 310, and a protective member is set between the conductive components and the motor shaft 310 to separate the conductive components and the motor shaft 310. The conductive components and the motor shaft 310 can also be kept relatively still to avoid damage to the conductive components caused by friction between the motor shaft 310 and the conductive components when the motor shaft 310 moves, thereby ensuring the normal operation of the electric toothbrush 1000, extending the service life of the electric toothbrush 1000, and improving the user experience.

[0057] A wiring space 310a is defined inside the motor shaft 310 to arrange conductive components, which is convenient for arranging the wiring inside the electric toothbrush 1000 and can simplify the wiring structure of the electric toothbrush 1000 by utilizing the structure of the motor shaft 310. It is understandable that since the brush head 700 is generally powered by a low voltage, at least part of the conductive components are arranged inside the motor shaft 310, and the normal operation of the motor 300 itself will not be affected by the power supply of the motor 300.

[0058] In some embodiments, the extension direction of the motor shaft 310 is consistent with the extension direction of the motor 300, one end of the motor shaft 310 protrudes from the motor 300, the conductive component is passed through the wiring space 310a inside the motor shaft 310, and one end of the conductive component is electrically connected to the electrical connection part 410, and the other end extends out of the motor 300 and is electrically connected to the main control board 200.

[0059] In some embodiments, the end of the conductive component electrically connected to the main control board 200 can be reinforced to prevent the connection between the conductive component and the main control board 200 from being broken when the motor shaft 310 drives the conductive component to move together, thereby ensuring the connection strength between the conductive component and the main control board 200.

[0060] In some embodiments, Figure 3 As shown, the brush head 700 is formed with a matching space 700a to accommodate the motor shaft 310 of the motor 300 , and the motor shaft 310 extends into the matching space 700a to achieve the connection between the brush head 700 and the motor shaft 310 , thereby achieving the connection between the brush head 700 and the handle tube 100 .

[0061] In some embodiments, Figure 4 As shown, the electric toothbrush 1000 further includes a power supply 900 , which is disposed in the handle tube 100 and is suitable for being electrically connected to the main control board 200 and / or the motor 300 , so as to supply power to the main control board 200 and / or the motor 300 .

[0062] It is worth mentioning that when the electrical functional assembly 400 includes electrical functional parts, the function and structure of the electrical functional parts can be selected according to specific needs.

[0063] For example, the electric functional part can be constructed as a light-emitting part, which can emit a blue light beam with a wavelength of 480-520mm to destroy the DNA and RNA structure of bacteria and viruses, thereby achieving a sterilization effect. At the same time, the blue light can also whiten teeth. When the user needs to whiten teeth, a special whitening agent composed mainly of hydrogen peroxide and silicon dioxide can be applied to the bristles. At this time, when the blue light is irradiated on the teeth and the whitening agent, an oxidation-reduction reaction will occur on the teeth, thereby achieving the effect of whitening teeth. Among them, the light emitted by the light-emitting part can also be used for lighting, catalyzing the ingredients of toothpaste, reducing inflammation in the oral cavity, promoting blood circulation, etc., and there are no excessive restrictions here.

[0064] The electrical functional part can also be a radio frequency electrode, which can emit radio frequency current, thereby generating charged particles to decompose tooth stains or decompose dental plaque and tartar. Due to the pervasive nature of radio frequency, radio frequency current can reach blind spots such as tooth gaps and gum lines that are not cleaned by ordinary toothbrushes, to meet the need to clean blind spots.

[0065] The electrical functional part can also be an electrolytic electrode, which can ionize water or toothpaste to produce cleaning molecules and use electricity to adsorb the cleaning molecules to the teeth. The electrolytic electrode can also be used to massage the gums, reduce inflammation, and promote blood circulation.

[0066] Alternatively, the electrical functional component is constructed as a heating wire, which can be used to atomize water or toothpaste to promote the release of cleaning factors in the toothpaste, and can also dry and sterilize the bristles.

[0067] Alternatively, the electrical functional component is constructed as a camera. When the user uses the electric toothbrush 1000, the electrical functional component can be used to photograph the inside of the oral cavity. The user can use the camera to observe the inside of the oral cavity, thereby facilitating the judgment of the health of the oral cavity.

[0068] Furthermore, the electrical functional parts can also be constructed as a thermal imager, which is used to form a photoelectric thermal image. When the user uses the electric toothbrush 1000, a photoelectric thermal image of the oral cavity can be formed, thereby facilitating the judgment of the health of the oral cavity.

[0069] The specific function and structure of the electrical functional component can be one or a combination of the above embodiments. Of course, the electrical functional component can also have other functions or structures suitable for application in the electric toothbrush 1000. It can be selected according to specific needs and is not limited here.

[0070] According to some embodiments of the present invention, the protective member is sleeved on the conductive component to separate the conductive component and the motor shaft 310. Specifically, the protective member can be sleeved on the outer surface of the conductive component to separate the conductive component and the motor shaft 310, thereby isolating the friction between the conductive component and the motor shaft 310 and protecting the conductive component.

[0071] In some embodiments, the protective member is constructed as a rigid member covering the outer surface of the conductive component. In this case, the rigid protective member needs to remain relatively still with the conductive component to isolate the friction between the conductive component and the motor shaft 310 while avoiding friction between the rigid protective member and the conductive component, thereby ensuring the protective effect of the protective member on the conductive component.

[0072] In other embodiments, the protective member is constructed as a flexible member disposed between the conductive component and the inner surface of the motor shaft 310. When the conductive component and the motor shaft 310 move relative to each other, the flexible protective member may be deformed to reduce the relative movement between the conductive component and the motor shaft 310, thereby avoiding damage to the conductive component. Furthermore, the flexible protective member may be sleeved on the outer surface of the conductive component or on the inner surface of the motor shaft 310, which may be selected according to actual needs and is not limited here.

[0073] In some embodiments, Figure 5 As shown, the conductive component includes a conductive wire 510, and the conductive wire 510 is arranged in the routing space 310a.

[0074] In some embodiments, the conductive wire 510 is a non-flexible conductive wire that can maintain a gap with the inner surface of the motor shaft 310 in the wiring space 310 a to ensure that no friction is generated when the conductive wire 510 and the motor shaft 310 move relative to each other.

[0075] In some embodiments, the conductive wire 510 can be constructed as a shapeable metal wire, and to ensure insulation between the conductive wire 510 and the motor shaft 310 , insulating glue is coated on the metal wire.

[0076] According to some embodiments of the utility model, at least the portion of the protective member opposite to the conductive component is formed as a flexible member. Here, the flexible protective member is sleeved on the outer surface of the conductive component. When the conductive component and the motor shaft 310 move relative to each other, the flexible protective member is deformed to reduce the relative movement amplitude between the conductive component and the motor shaft 310. This can buffer the force on the conductive component while isolating the friction between the conductive component and the motor shaft 310, thereby avoiding damage to the conductive component.

[0077] According to some embodiments of the present invention, Figure 6 As shown, the protective member is formed as a solidified colloid 610 filling the wiring space 310a, and the conductive component is fixed relative to the motor shaft 310 by glue injection, so that no relative movement and no relative friction will occur, and the position of the conductive component is fixed relative to the motor shaft 310, so that the connection position between the conductive component and the electrical functional component 400 is fixed, so as to reduce the possibility of poor contact between the conductive component and the electrical functional component 400.

[0078] According to some embodiments of the present invention, Figure 6As shown, the protective member is filled in the wiring space 310a except the conductive components, and the solidified colloid 610 is filled in the wiring space 310a, which can enhance the structural strength of the hollow motor shaft 310, prevent the hollow motor shaft 310 from breaking due to movement when the electric toothbrush 1000 is working, and ensure the structural stability of the electric toothbrush 1000.

[0079] According to some embodiments of the utility model, a protective member is provided at the end of the motor shaft 310 away from the electric functional component 400, and the protective member positions the conductive component. In some embodiments, one end of the motor shaft 310 is suitable for extending out of the handle tube 100 and is provided with the electric functional component 400, the conductive component is arranged in the wiring space 310a inside the motor shaft 310, and one end of the conductive component is electrically connected to the electric functional component 400, and the other end extends out of the motor 300 and is electrically connected to the main control board 200, and the other end of the conductive component is fixed to the other end of the motor shaft 310 through the protective member, and the provision of the protective member can prevent the conductive component from moving relative to the motor shaft 310, thereby preventing the conductive component and the motor shaft 310 from rubbing against each other, preventing vibration breakage, and further preventing damage to the conductive component.

[0080] According to some embodiments of the utility model, the conductive component is fixedly connected to the electric functional component 400, and the connection between the conductive component and the electric functional component 400 is covered with an insulating rubber layer, and / or the conductive component is fixedly connected to the main control board 200, and the connection between the conductive component and the main control board 200 is covered with an insulating rubber layer. Specifically, an insulating rubber layer can be provided at the connection between the conductive component and the electric functional component 400 for reinforcement treatment to avoid the connection between the conductive component and the electric functional component 400 being twisted off when the motor shaft 310 drives the conductive component to move together, thereby ensuring the connection strength between the conductive component and the electric functional component 400; an insulating rubber layer can also be provided between the end of the conductive component electrically connected to the main control board 200 and the main control board 200 for reinforcement treatment to avoid the connection between the conductive component and the main control board 200 being twisted off when the motor shaft 310 drives the conductive component to move together, thereby ensuring the connection strength between the conductive component and the main control board 200.

[0081] It can be understood that the insulating design of the insulating rubber layer can ensure that the current between the conductive component and the electrical functional component 400 or the main control board 200 is only transmitted at the connection point, avoiding contact between the conductive component and the electrical functional component 400 or other positions of the main control board 200, thereby avoiding short circuit.

[0082] At the same time, by applying an insulating glue layer at the connection between the conductive component and the electrical functional component 400 or at the connection between the conductive component and the main control board 200, the conductive component can be connected to the electrical functional component 400 or to the main control board 200, which is convenient to operate and easy to implement.

[0083] According to some embodiments of the present invention, Figure 5 , Figure 6 As shown, the conductive component includes a conductive wire 510, one end of the conductive wire 510 is electrically connected to the electric function component 400 and the other end extends out of the wiring space 310a to be electrically connected to the main control board 200, and the length of the portion of the conductive wire 510 extending out of the wiring space 310a is greater than the distance between the end of the motor shaft 310 and the main control board 200. Specifically, one end of the motor shaft 310 is suitable for extending out of the handle tube 100 and is provided with the electric function component 400, the conductive wire 510 is arranged in the wiring space 310a inside the motor shaft 310, and one end of the conductive wire 510 is electrically connected to the electric function component 400, and the other end extends out of the wiring space 310a of the motor shaft 310 and is electrically connected to the main control board 200. In some embodiments, the other end of the conductive wire 510 extends out of the wiring space 310a of the motor shaft 310 and passes through the tail of the motor 300, so as to be integrated on the flexible flat cable together with the power connection line of the motor 300 and electrically connected to the main board. The length of the portion of the other end of the conductive wire 510 extending out of the wiring space 310a must be greater than the distance between the end of the motor shaft 310 and the main control board 200, so as to leave room for movement for the conductive wire 510 and avoid the portion where the conductive wire 510 is connected to the main control board 200 being too tight, thereby avoiding the conductive wire 510 from breaking due to being pulled by the main control board 200.

[0084] According to some embodiments of the utility model, the conductive component includes a conductive wire 510 and a contact member, one end of the conductive wire 510 is electrically connected to the electric function component 400, the other end of the conductive wire 510 is electrically connected to the contact member, and the contact member is in sliding contact with the main control board 200 and is electrically connected. Specifically, one end of the motor shaft 310 is suitable for extending out of the handle tube 100 and is provided with the electric function component 400, the conductive wire 510 is arranged in the wiring space 310a inside the motor shaft 310, and one end of the conductive wire 510 is electrically connected to the electric function component 400, and the other end is electrically connected to the contact member, at least part of the contact member extends out of the wiring space 310a of the motor shaft 310 to be electrically connected to the main control board 200, and the contact member is in sliding contact with the main control board 200, so that the main control board 200 and the conductive wire 510 are electrically conductive, which can prevent the conductive wire 510 from being broken due to the involvement of the main control board 200.

[0085] In some embodiments, a conductive structure is formed on the main control board 200 , and a sliding conductive structure is formed between the conductive structure and the contact element.

[0086] In some embodiments, the conductive structure is configured as a spring.

[0087] According to some embodiments of the utility model, a fixing piece is provided at the end of the motor shaft 310, the other end of the conductive wire 510 is mounted to the fixing piece, and the contact piece is mounted to the fixing piece. Specifically, one end of the motor shaft 310 extends out of the handle tube 100 and is provided with an electric function component 400, the other end of the motor shaft 310 is provided with a fixing piece, the conductive wire 510 is arranged in the wiring space 310a inside the motor shaft 310, and one end of the conductive wire 510 is electrically connected to the electric function component 400 and the other end is mounted to the fixing piece, the contact piece is mounted to the fixing piece to be electrically connected to the other end of the conductive wire 510, and at least part of the contact piece extends out of the wiring space 310a of the motor shaft 310 to be electrically connected to the main control board 200.

[0088] According to some embodiments of the present invention, Fig. 9 As shown, the electric function component 400 includes at least two power connectors 430, at least two power connectors 430 are sleeved and an insulating member 440 is provided between two adjacent power connectors 430, and each power connector 430 is provided with an electrical connection portion 410. Specifically, the power connector 430 and the insulating member 440 are sleeved with each other, and the two adjacent power connectors 430 are isolated by the insulating member 440 to achieve insulation, so as to form a conductive form distributed at intervals in the axial direction. Without changing the rod diameter of the motor shaft 310, the distance between multiple power connectors 430 can be made farther. In some embodiments, an insulating member 440 is provided between two adjacent power connectors 430, and the insulating member 440 can be covered on the outside of the power connector 430, and one end of the power connector 430 is exposed for electrical connection with the brush head 700, and the other end is used for electrical connection with the main control board 200.

[0089] In some embodiments of the present invention, Fig. 9 As shown, the motor shaft 310 defines one of the power connectors 430, which can reduce the number of nested layers of the motor shaft 310, and when the motor shaft 310 is used as the power connector 430, only one insulating member 440 is required between the other power connectors 430 and the motor shaft 310, which can reduce the number of insulating members 440 of the electric functional component 400. In addition, the motor shaft 310 is a hollow shaft, and since the brush head 700 is generally powered by low voltage, the motor shaft 310 is used as the power connector 430, and the normal operation of the motor 300 itself will not be affected by the power supply of the motor 300.

[0090] In some embodiments of the present invention, Fig.11As shown, the electric function component 400 includes an insulating assembly 450 and a circuit board 460. The insulating assembly 450 is mounted on the motor shaft 310, the circuit board 460 is mounted on the insulating assembly 450 and the circuit board 460 is provided with an electrical connection portion 410, and the conductive component is electrically connected to the circuit board 460. Specifically, the conductive component is electrically connected to the circuit board 460 to supply power to the circuit board 460. In some embodiments, the insulating assembly 450 is sleeved on the end of the motor shaft 310 extending out of the handle tube 100, and at least part of the circuit board 460 is exposed from the insulating assembly 450, so as to be electrically connected to the brush head 700 when the end of the motor shaft 310 extending out of the handle tube 100 is matched with the brush head 700. Since the insulating assembly 450 is constructed of an insulating material, after the lower part structure of the electric toothbrush 1000 is matched with the brush head 700, the lower part structure of the electric toothbrush 1000 is only electrically connected to the brush head 700 through the electrical connection portion 410 on the circuit board 460, thereby avoiding short circuit and ensuring the normal operation of the electric toothbrush 1000.

[0091] In some embodiments of the utility model, the electrical functional component 400 includes an insulating sleeve and an electrical functional part. The insulating sleeve is sleeved on the end of the motor shaft 310, and the electrical functional part is fixed to the insulating sleeve. It can be understood that since the motor shaft 310 is relatively thin, the insulating sleeve is arranged on the outer side of the motor shaft 310, which can increase the installation area for installing the electrical functional part or other structures, ensure the structural strength of the motor shaft 310, and improve the installation stability of the electrical functional part on the motor shaft 310.

[0092] In summary, according to the electric toothbrush 1000 of the present invention, at least part of the conductive components are arranged in the wiring space 310a inside the motor shaft 310, and a protective member is provided between the conductive components and the motor shaft 310 to avoid damage to the conductive components caused by friction between the motor shaft 310 and the conductive components when the motor shaft 310 moves, thereby ensuring the normal operation of the electric toothbrush 1000 and extending the service life of the electric toothbrush 1000.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. 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 different embodiments or examples described in this specification.

[0094] Although embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

Claims

1. An electric toothbrush, characterized in that: include: A handle tube and a main control panel, wherein the main control panel is arranged in the handle tube; A motor, the motor is disposed in the handle tube, the motor comprises a motor shaft, at least a portion of the motor shaft extends out of the handle tube to cooperate with the brush head of the electric toothbrush, and the motor shaft is a hollow member to define a wiring space therein; An electrical function component, the electrical function component comprising an electrical connection portion and / or an electrical function component exposed on the motor shaft, the electrical connection portion being suitable for being electrically connected to the brush head, and the electrical function component being suitable for acting on the brush head; A conductive component, at least a portion of which is located in the wiring space, and the conductive component is electrically connected to the electrical function component and the main control board respectively; as well as, A protective member is disposed in the wiring space, and is used to isolate the motor shaft and the conductive component, and / or is used to position the conductive component so that the conductive component and the motor shaft located in the wiring space are relatively stationary.

2. The electric toothbrush according to claim 1, characterized in that: The protective member is externally mounted on the conductive component to separate the conductive component from the motor shaft.

3. The electric toothbrush according to claim 2, characterized in that: At least a portion of the protection member that is opposite to the conductive component is formed as a flexible member.

4. The electric toothbrush according to claim 1, characterized in that: The protection member is formed as a solidified colloid filling the wiring space.

5. The electric toothbrush according to claim 4, characterized in that: The protection member is filled in the wiring space except the conductive component.

6. The electric toothbrush according to claim 1, characterized in that: The protective member is arranged at the end of the motor shaft away from the electrical functional component, and the protective member positions the conductive component.

7. The electric toothbrush according to claim 1, characterized in that: The conductive component is fixedly connected to the electrical functional component, and the connection between the conductive component and the electrical functional component is covered with an insulating adhesive layer, and / or the conductive component is fixedly connected to the main control board, and the connection between the conductive component and the main control board is covered with an insulating adhesive layer.

8. The electric toothbrush according to claim 1, characterized in that: The conductive component includes a conductive wire, one end of which is electrically connected to the electrical functional component and the other end of which extends out of the wiring space to be electrically connected to the main control board. The length of the portion of the conductive wire extending out of the wiring space is greater than the distance between the end of the motor shaft and the main control board.

9. The electric toothbrush according to claim 1, characterized in that: The conductive component includes a conductive wire and a contact piece, one end of the conductive wire is electrically connected to the electrical functional component, the other end of the conductive wire is electrically connected to the contact piece, and the contact piece is in sliding contact and conductive connection with the main control board.

10. The electric toothbrush according to claim 9, characterized in that: A fixing piece is provided at the end of the motor shaft, the other end of the conductive wire is mounted to the fixing piece and the contact piece is mounted to the fixing piece.

11. The electric toothbrush according to any one of claims 1 to 10, characterized in that: The electrical functional component comprises at least two electrical connectors, the at least two electrical connectors are nested and an insulating member is provided between two adjacent electrical connectors, and each electrical connector is provided with the electrical connection portion.

12. The electric toothbrush according to claim 11, characterized in that: The motor shaft defines one of the power connections.

13. The electric toothbrush according to any one of claims 1 to 10, characterized in that: The electrical functional component comprises an insulating assembly and a circuit board, wherein the insulating assembly is mounted on the motor shaft, the circuit board is mounted on the insulating assembly and the circuit board is provided with the electrical connection portion, and the conductive component is electrically connected to the circuit board.

14. The electric toothbrush according to any one of claims 1 to 10, characterized in that: The electrical function assembly comprises an insulating sleeve and an electrical function component. The insulating sleeve is fitted onto the end of the motor shaft, and the electrical function component is fixed to the insulating sleeve.

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