Electric toothbrush

Abstract

The embodiment of the application provides an electric toothbrush, and relates to the technical field of toothbrushes. The electric toothbrush comprises a brush handle, a motor, a first support, a second support, a first damping part and a second damping part arranged in the brush handle, the motor is installed on the first support, the first support is connected with the second support, and the second support is connected with the brush handle. The first damping part is sleeved at one end of the motor away from the second support, and the second damping part is arranged between the first support and the second support. By arranging the first damping part and the second damping part, the two ends of the motor and the first support are in non-rigid contact, that is, in a suspended fixed state, can play a buffering and damping role, fully play the performance of the motor, realize the functions of damping and noise reduction of the electric toothbrush, and improve the use comfort of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of toothbrushes, and in particular to an electric toothbrush. BACKGROUND

[0002] The current electric toothbrush is mainly composed of a motor, a rotating shaft, a toothbrush head, a toothbrush handle and the like. During use, the swing vibration of the motor is omnidirectional along the radial direction and the axial direction. Therefore, the toothbrush handle will have irregular vibration during use, which affects the performance of the motor and the comfort of the user. SUMMARY

[0003] The present application aims to provide an electric toothbrush with a buffering and damping function, small vibration, low noise, and the ability to fully exert the performance of the motor and improve the comfort of the user.

[0004] The embodiments of the present application can be implemented as follows:

[0005] In a first aspect, the present application provides an electric toothbrush, comprising a handle, a motor, a first support, a second support, a first damping member and a second damping member arranged in the handle, the motor is installed on the first support, the first support is connected with the second support, and the second support is connected with the handle.

[0006] The first damping member is sleeved on one end of the motor away from the second support, and the second damping member is arranged between the first support and the second support.

[0007] In an optional embodiment, the first damping member comprises a first damping ring, a waterproof ring and a second damping ring, the first damping ring is sleeved on the output shaft of the motor, the second damping ring is sleeved on the outer circumferential surface of the motor, and the waterproof ring is arranged between the first damping ring and the second damping ring and clamped between the motor and the inner side wall of the handle.

[0008] In an optional embodiment, the outer circumferential surface of the waterproof ring is convexly provided with at least one waterproof ring.

[0009] In an optional embodiment, the inner side wall of the handle is provided with a support rib, and the second damping ring abuts against the support rib.

[0010] In an optional embodiment, the first damping ring, the waterproof ring and the second damping ring are integrally formed.

[0011] In an optional embodiment, one end of the second damping member abuts against the first support, and the other end abuts against the second support.

[0012] In an optional embodiment, the inner side wall of the brush handle is provided with a first limiting block and a second limiting block in axial direction, and the second support is abutted between the first limiting block and the second limiting block.

[0013] In an optional embodiment, the inner side wall of the brush handle is provided with at least two first clamping grooves which are distributed in circumferential direction, and the second support is provided with at least two first clamping blocks, each of which is clamped into one of the first clamping grooves.

[0014] In an optional embodiment, the first support is provided with a counterweight which is used to change the resonance frequency.

[0015] In an optional embodiment, a base is further included, which is arranged at the end of the brush handle away from the motor; and the base is clamped with the second support.

[0016] In an optional embodiment, a flip cover is further included, the base is provided with a charging interface, the flip cover is connected with the base, and the flip cover can be flipped relative to the base to expose or hide the charging interface.

[0017] In an optional embodiment, the outer circumferential surface of the base is provided with an annular groove, the flip cover includes a fixed ring and a cover body which is rotationally connected with the fixed ring, and the fixed ring is arranged in the annular groove.

[0018] In an optional embodiment, the side of the cover body close to the base is provided with a sealing ring.

[0019] The electric toothbrush provided by the embodiment has the following beneficial effects, for example:

[0020] The electric toothbrush is provided with the first damping member and the second damping member in the brush handle, so that the motor and the first support are non-rigidly connected with the brush handle, i.e., the motor and the first support are in a suspended fixed state, the vibration is reduced in axial and radial directions, the vibration during the movement of the motor is reduced, and the purpose of damping and noise reduction is achieved. During use, the electric toothbrush has small vibration and low noise, and the user has better comfort. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1A cross-sectional structure schematic view of the electric toothbrush from a first perspective according to an embodiment of the present application is provided in the following.

[0023] Figure 2 An exploded structure schematic view of the electric toothbrush according to an embodiment of the present application is provided in the following.

[0024] Figure 3 A structure schematic view of the first damping member of the electric toothbrush according to an embodiment of the present application is provided in the following.

[0025] Figure 4 A structure schematic view of the second damping member of the electric toothbrush according to an embodiment of the present application is provided in the following. Figure 1 A partial enlarged schematic view of A in the above.

[0026] Figure 5 A partial enlarged schematic view of B in the above. Figure 1 A partial enlarged schematic view of B in the above.

[0027] Figure 6 A structure schematic view of the second support of the electric toothbrush according to an embodiment of the present application is provided in the following.

[0028] Figure 7 An assembly schematic view of the second support and the handle of the electric toothbrush according to an embodiment of the present application is provided in the following.

[0029] Figure 8 A structure schematic view of the base of the electric toothbrush according to an embodiment of the present application is provided in the following.

[0030] Figure 9 A structure schematic view of the flip cover of the electric toothbrush according to an embodiment of the present application is provided in the following.

[0031] Figure 10 A cross-sectional structure schematic view of the electric toothbrush from a second perspective according to an embodiment of the present application is provided in the following.

[0032] Figure: 100-electric toothbrush; 110-handle; 111-key; 112-decorative ring; 113-decorative cover; 114-shading cotton; 115-circuit board; 116-supporting rib; 117-first limiting block; 118-second limiting block; 120-motor; 121-output shaft; 123-waterproof support; 130-first damping member; 131-first damping ring; 132-second damping ring; 133-waterproof ring; 134-waterproof ring; 140-first support; 141-second damping member; 143-counterweight; 145-battery; 150-second support; 151-first clamping block; 153-elastic protrusion; 155-second clamping block; 101-first rib; 102-second rib; 160-base; 161-mounting hole; 162-annular groove; 165-charging interface; 166-sealing ring; 170-flip cover; 171-fixing ring; 173-cover body; 175-sealing ring. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work fall within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0037] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0038] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0039] Please refer to Figure 1 and Figure 2The electric toothbrush 100 provided by the embodiment of the present application comprises a toothbrush head (not shown in the figure), a brush handle 110, a base 160, a motor 120, a first support 140, a second support 150, a first damping member 130 and a second damping member 141 arranged in the brush handle 110, and the toothbrush head is connected with an output shaft 121 of the motor 120. The motor 120 is installed on the first support 140, the first support 140 is connected with the second support 150, and the second support 150 is connected with the brush handle 110. The first damping member 130 is sleeved on an end of the motor 120 away from the second support 150, and the second damping member 141 is arranged between the first support 140 and the second support 150. By arranging the first damping member 130, the motor 120 and the brush handle 110 are in non-rigid contact, and by arranging the second damping member 141, the first support 140 and the second support 150 are in non-rigid contact, that is, the motor 120 and the first support 140 are in a suspended fixed state in the axial and radial directions, which can reduce the propagation of vibration in the axial and radial directions, reduce the irregular vibration of the brush handle 110, and further improve the performance of the motor 120, thereby achieving the purpose of vibration reduction and noise reduction.

[0040] It is easy to understand that the brush handle 110 has a cavity structure, and the first support 140, the second support 150, the first damping member 130 and the second damping member 141 are all accommodated in the cavity of the brush handle 110. The first support 140 is arranged at one end of the cavity close to the toothbrush head, a first clamping groove for installing the motor 120 is arranged on the first support 140, a through hole for the output shaft 121 of the motor 120 to pass through is arranged on the first support 140 and the brush handle 110, and the output shaft 121 is connected with the toothbrush head after passing through the through hole. In the embodiment, the motor 120 is a direct-current brushless motor 120 for driving the toothbrush head to move.

[0041] Please refer to Figure 3 and Figure 4Further, the first damping member 130 comprises a first damping ring 131, a waterproof ring 133 and a second damping ring 132. The first damping ring 131 is sleeved on the output shaft 121 of the motor 120. The second damping ring 132 is sleeved on the outer circumferential surface of the motor 120. The waterproof ring 133 is arranged between the first damping ring 131 and the second damping ring 132 and is clamped between the motor 120 and the inner side wall of the brush handle 110. In detail, the first damping ring 131 is in interference fit with the output shaft 121 of the motor 120, which can play a positioning and limiting role, has a vibration isolation and damping function, and also plays a waterproof sealing role to a certain extent. The outer circumferential surface of the waterproof ring 133 is convexly provided with at least one waterproof ring 134, which is mainly used for waterproof sealing. Optionally, the output shaft 121 of the motor 120 is also sleeved with a waterproof support 123. The waterproof ring 133 is sleeved on the waterproof support 123 to achieve better waterproof performance. In the embodiment, the waterproof ring 133 is convexly provided with two waterproof rings 134 arranged at intervals, which further improves the waterproof performance. It should be noted that the number of waterproof rings 134 can also be one, three or more, which is not limited here. The inner side wall of the brush handle 110 is provided with a support rib 116. The second damping ring 132 abuts against the support rib 116 to achieve axial limiting. It can be understood that, in order to achieve better positioning, waterproof and damping and vibration isolation functions, the waterproof ring 133 and the waterproof support 123 can be in interference fit, and the second damping ring 132 and the motor 120 can also be in interference fit.

[0042] Optionally, the first damping ring 131, the waterproof ring 133 and the second damping ring 132 can be independently arranged or integrally formed. In the embodiment, the first damping ring 131, the waterproof ring 133 and the second damping ring 132 are integrally formed, which is convenient for processing and manufacturing, and also facilitates assembly, reduces the number of assembly parts and improves assembly efficiency. The first damping member 130 can be made of soft material such as silica gel. Through the arrangement of the first damping member 130, the motor 120 and the brush handle 110 are in soft and elastic connection. The first support 140 and the inner wall of the brush handle 110 are also in elastic connection, which improves the defects caused by hard contact in the prior art and has good buffering, damping and noise reduction effects.

[0043] Please refer to Figure 5In the embodiment, the second damping member 141 is arranged between the first support 140 and the second support 150, one end of the second damping member 141 abuts against the first support 140, and the other end of the second damping member 141 abuts against the second support 150, so as to play a buffering and damping role between the first support 140 and the second support 150. Optionally, the second damping member 141 is made of soft material such as silica gel, and the second damping member 141 includes but is not limited to a damping ball, a spring, a damping block or the like, as long as the buffering and damping purposes can be achieved. In the embodiment, the second damping member 141 is a damping ball, which can be automatically centered during assembly, and is convenient for assembly. Of course, the second damping member 141 is not limited to this, and the shape of the second damping member 141 can also be square, which is beneficial to realize the positioning function, or the shape of the second damping member 141 can also be oval, prism, circular truncated cone, arch or any other shape, which is not limited here.

[0044] Please refer to Figure 6 and Figure 7 The inner side wall of the brush handle 110 is axially spaced apart to be provided with a first limiting block 117 and a second limiting block 118, the second support 150 is abutted between the first limiting block 117 and the second limiting block 118, so as to realize the axial limiting of the second support 150. Further, the second support 150 is provided with an elastic lug 153 which protrudes from the outer peripheral surface of the second support 150, when the second support 150 is assembled with the brush handle 110, the elastic lug 153 abuts against the inner wall of the brush handle 110, so as to increase the clamping force, and make the connection structure of the second support 150 and the brush handle 110 more reliable. Optionally, the inner side wall of the brush handle 110 is further provided with at least two first clamping grooves (not marked in the figure), the at least two first clamping grooves are distributed in the circumferential direction, the second support 150 is provided with at least two first clamping blocks 151, each first clamping block 151 is clamped into one first clamping groove, so as to realize the radial positioning of the second support 150. In the embodiment, the first limiting block 117 and the second limiting block 118 are formed by the reinforcing ribs of the inner wall of the brush handle 110, and the first clamping grooves of the inner wall of the brush handle 110 are also formed by at least two protruding ribs. The number of the first clamping blocks 151 is equal to the number of the first clamping grooves, and the shape of the first clamping blocks 151 is similar to the shape of the first clamping grooves, the first clamping blocks 151 are clamped in the first clamping grooves, so as to realize the clamping limiting. Three first clamping blocks 151 are shown in the figure, and each first clamping groove is formed by two spaced-apart first ribs 101 and second ribs 102. Of course, in other optional embodiments, the number of the first clamping grooves and the number of the first clamping blocks 151 can be appropriately increased or decreased; the first clamping grooves can also be arranged on the second support 150, and the first clamping blocks 151 can also be arranged on the inner wall of the brush handle 110, which is not limited here.

[0045] Please refer to Figure 8 and in combination with Figure 6The base 160 is arranged at the end of the brush handle 110 away from the motor 120, and the base 160 is clamped with the second support 150. Optionally, the second support 150 is provided with a second clamping block 155, and the base 160 is provided with a mounting hole 161, and the second clamping block 155 can be clamped into the mounting hole 161 to achieve the fixed clamping of the second support 150 and the base 160. Of course, it is not limited to this, the second clamping block 155 can also be arranged on the base 160, and the mounting hole 161 is arranged on the second support 150, and the clamping of the base 160 and the second support 150 can also be achieved. Alternatively, the second support 150 and the base 160 can also be connected by screws or other clamping forms, which are not limited here. In the embodiment, the base 160 is integrally formed by side waterproof and double-color injection molding, which reduces assembly error and improves the reliability of waterproof sealing.

[0046] Please refer to Figure 9 The base 160 is provided with a charging interface 165 for charging the battery 145 of the electric toothbrush 100, and the charging interface 165 adopts a Type-C interface to achieve waterproof charging. Type-C is a connection interface of USB interface, which can be inserted from both sides, and charging is more fast and convenient. In order to reduce the influence of humid environment on the charging interface 165, the end of the base 160 away from the second support 150 is also provided with a flip cover 170, the flip cover 170 is connected with the base 160, and the flip cover 170 can be flipped relative to the base 160 to expose or hide the charging interface 165. When charging is needed, the charging interface 165 is exposed by flipping the flip cover 170, which is convenient for charging; when charging is not needed, the flip cover 170 covers the charging interface 165 by flipping the flip cover 170, preventing water vapor from entering the charging interface 165, and also increasing the aesthetic degree.

[0047] The base 160 and the inner wall of the brush handle 110 are provided with a sealing ring 166 for improving the waterproof performance of the brush handle 110. Optionally, the outer periphery of the base 160 is provided with an annular groove 162, the flip cover 170 includes a fixed ring 171 and a cover body 173 rotatably connected with the fixed ring 171, and the fixed ring 171 is arranged in the annular groove 162. Arranging the fixed ring 171 in the annular groove 162 of the base 160 can prevent the flip cover 170 from falling off, and shorten the axial distance of the entire brush handle 110, so that the structure is more compact, the volume is small, and the space is saved. The fixed ring 171 is made of soft glue material such as silica gel, which can play a fixing role while also playing a waterproof effect, improving the waterproof sealing between the base 160 and the brush handle 110. Furthermore, the fixed ring 171 can play a certain extension role when the cover body 173 is opened, increasing the opening degree of the cover body 173, and facilitating charging operation. Further, the side of the cover body 173 close to the base 160 is provided with a sealing ring 175, which plays a waterproof role and protects the charging interface 165 from water.

[0048] Please refer toFigure 10 and in combination Figure 2 Optionally, the first support 140 is provided with a counterweight 143, and the counterweight 143 is used to change the weight of the brush handle 110, so as to change the vibration frequency of the brush handle 110, and the working frequency of the motor 120 is staggered to prevent resonance and achieve the purpose of vibration reduction and noise reduction. Optionally, the first support 140 is provided with a buckle structure to hold the counterweight 143, so as to realize the fixed connection of the counterweight 143 and the first support 140. Optionally, the material of the counterweight 143 includes but is not limited to metal, cement, stone or other materials.

[0049] In this embodiment, the battery 145 and the circuit board 115 are respectively installed on the first support 140, the battery 145 is electrically connected with the circuit board 115, the motor 120 is electrically connected with the circuit board 115, and the battery 145 is used to supply power to the motor 120 and the circuit board 115. The inner wall of the brush handle 110 is provided with a light shielding cotton 114 at a position corresponding to the circuit board 115, the brush handle 110 is provided with a key 111, the key 111 is connected with the circuit board 115, and the key 111 is used to trigger the conduction and disconnection of the circuit on the circuit board 115. The outer periphery of the key 111 is provided with a decorative ring 112, the decorative ring 112 is in interference fit with the key 111, the decorative ring 112 and the key 111 are assembled as a whole, and the key 111 is fixed on the brush handle 110 by adhesion to improve the appearance of the key 111. In addition, the brush handle 110 is provided with a decorative cover 113 at an end away from the base 160, so as to improve the appearance of the brush handle 110.

[0050] According to the electric toothbrush 100 provided in this embodiment, the installation process and working principle are as follows:

[0051] During assembly, the waterproof support 123 is first installed on the output shaft 121 of the motor 120, the first damping member 130 is sleeved on the motor 120, and the motor 120 is clamped on the first support 140; the battery 145, the counterweight 143, the circuit board 115 and the light shielding cotton 114 are respectively installed on the first support 140 to form an installation module of the first support 140, and then the module is assembled into the cavity of the brush handle 110, and the output shaft 121 of the motor 120 penetrates through the through hole of the brush handle 110 to facilitate connection with the toothbrush head. The second damping member 141 is installed at an end of the first support 140 away from the motor 120, and then the second support 150 is clamped with the inner wall of the brush handle 110 to realize axial and radial positioning of the second support 150. After the second support 150 is assembled with the brush handle 110, the second support 150 is abutted with the first support 140 through the second damping member 141 to realize fixation of the first support 140. The flip cover 170 is connected with the base 160, the base 160 is clamped with the second support 150, the key 111, the decorative ring 112, the decorative cover 113 and the toothbrush head are installed, and the assembly of the electric toothbrush 100 is completed.

[0052] During use, the electric toothbrush 100 is pressed by the button 111, the power is turned on, the motor 120 is started, the toothbrush head is driven to move, and the teeth are cleaned. Due to the first damping member 130, the motor 120 and the brush handle 110 and the motor 120 and the first support 140 are in elastic contact. Due to the second damping member 141, the first support 140 and the second support 150 are also in elastic connection, that is, the two ends of the whole formed by the motor 120 and the first support 140 are suspended and fixed in the cavity of the brush handle 110. In this way, during the operation of the motor 120, the vibration of the motor 120 in the axial and radial directions can be effectively reduced, the performance of the motor 120 can be fully utilized, and the purpose of damping and noise reduction is achieved. In addition, by arranging the counterweight 143, the vibration frequency of the brush handle 110 is changed to avoid the working frequency of the motor 120, and resonance is prevented. The clever arrangement of the flip cover 170 shortens the axial installation distance, the structure is more compact, and the fixing ring 171 of the flip cover 170 increases the waterproof performance while playing a fixing role. The electric toothbrush 100 has the advantages of compact structure, convenient installation, good waterproof effect, small vibration, low noise, and better user comfort during use.

[0053] In summary, the electric toothbrush 100 provided by the embodiment of the present application has the following advantages:

[0054] The electric toothbrush 100 is arranged with the first damping member 130 and the second damping member 141, so that the installation of the motor 120 and the installation of the first support 140 become non-rigid connection, and are suspended and fixed in the cavity of the brush handle 110, have good buffering and damping effect, can effectively reduce the vibration of the motor 120 in the axial and radial directions, can fully utilize the performance of the motor 120, can achieve the purpose of damping and noise reduction, and has better user comfort. In addition, the electric toothbrush 100 is arranged with the counterweight 143 to avoid the working frequency of the motor 120, prevent resonance, and achieve the purpose of damping and noise reduction. The electric toothbrush 100 has good damping effect, compact structure, high waterproof reliability, convenient use, and improved user comfort.

[0055] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical range disclosed by the present application can be easily thought of by those skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electric toothbrush characterized by comprising: The handle and the motor, the first support, the second support, the first damping member and the second damping member are arranged in the handle, the motor and the battery are mounted on the first support, the first support is connected with the second support, and the second support is connected with the handle; the first support and the second support are arranged along the axial direction of the handle; The first damping member is sleeved on the end of the motor away from the second support, and the second damping member is arranged between the first support and the second support; one end of the second damping member abuts against the first support, and the other end abuts against the second support; The first damping member comprises a first damping ring, a waterproof ring and a second damping ring, the first damping ring is sleeved on the output shaft of the motor, the second damping ring is sleeved on the outer circumferential surface of the motor, the waterproof ring is arranged between the first damping ring and the second damping ring and is clamped between the motor and the inner side wall of the handle, and the first damping ring, the waterproof ring and the second damping ring are integrally formed.

2. The electric toothbrush according to claim 1, wherein The outer circumferential surface of the waterproof ring is provided with at least one waterproof ring.

3. The electric toothbrush according to claim 1, wherein The inner side wall of the handle is provided with a support rib, and the second damping ring abuts against the support rib.

4. The electric toothbrush according to claim 1, wherein The inner side wall of the handle is provided with a first limiting block and a second limiting block which are arranged along the axial direction, and the second support is arranged between the first limiting block and the second limiting block.

5. The electric toothbrush according to claim 1, wherein The inner side wall of the handle is provided with at least two first clamping grooves which are distributed in the circumferential direction, and the second support is provided with at least two first clamping blocks, each of the first clamping blocks is clamped into one of the first clamping grooves.

6. The electric toothbrush according to claim 1, wherein The first support is provided with a counterweight, and the counterweight is used for changing the resonance frequency.

7. The electric toothbrush according to any one of claims 1 to 6, characterized in that The handle is provided with a base which is arranged at the end away from the motor; the base is clamped with the second support.

8. The electric toothbrush according to claim 7, characterized in that The base is provided with a charging interface, a cover is connected with the base, and the cover can be flipped relative to the base to expose or hide the charging interface.

9. The electric toothbrush according to claim 8, characterized in that The outer circumferential surface of the base is provided with an annular groove, the cover comprises a fixed ring and a cover body which is rotationally connected with the fixed ring, and the fixed ring is arranged in the annular groove.

10. The electric toothbrush according to claim 9, wherein The side of the cover body close to the base is provided with a sealing ring.

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