CN214259540U

CN214259540U - Reliably-assembled electric toothbrush

Info

Publication number: CN214259540U
Application number: CN202022614809.7U
Authority: CN
Inventors: 喻金明; 杨世文; 荣守开; 叶志文
Original assignee: Leshow Electronic Technology Co Ltd
Current assignee: Leshow Electronic Technology Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-09-24
Anticipated expiration: 2030-11-12

Abstract

The utility model relates to the field of personal care electric appliances, in order to solve the problem of connection reliability between components, in particular to an electric toothbrush with reliable assembly, which comprises a brush head, a brush handle and a base component, wherein the brush head is detachably connected with the brush handle, the base component is positioned at the bottom of the brush handle, wherein the brush handle comprises a shell and a motor support which is arranged in the shell and used for fixing a motor, the bottom of the motor support is provided with a buckle structure, the buckle structure comprises a first buckle and a second buckle, the first buckle and the second buckle are arranged oppositely, the base component comprises a shell, the shell is provided with a first clamping groove matched with the first buckle, the inner wall of the shell is provided with a second clamping groove matched with the second buckle, the tail part of the motor support is provided with an extension arm, and the extension arm is positioned below the buckle structure, the shell is provided with a groove matched with the extension arm, and the extension arm extends into the groove.

Description

Reliably-assembled electric toothbrush

Technical Field

The utility model relates to a personal care electrical apparatus field especially relates to an electric toothbrush of reliable assembly.

Background

Along with the development of the times and the progress of the society, the living standard of people is improved, people pay more and more attention to oral hygiene, and the market and the development prospect of the electric toothbrush are better and better.

Since the electric toothbrush is used frequently and is liable to fall off, the reliability of the connection between the parts may be deteriorated after falling off, thereby deteriorating the internal sealing performance, and it is very important for the electric toothbrush to prevent water.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem in the background art, the utility model provides an assemble reliable electric toothbrush, improve the connection reliability between the part.

The technical proposal of the utility model is as follows,

an electric toothbrush with reliable assembly comprises a brush head, a brush handle and a base component, wherein the brush head is detachably connected with the brush handle, the base component is positioned at the bottom of the brush handle, wherein the brush handle comprises a shell and a motor bracket which is arranged in the shell and used for fixing a motor, the bottom of the motor bracket is provided with a buckle structure which comprises a first buckle and a second buckle, the first buckle and the second buckle are arranged oppositely, the base component comprises a shell, a first clamping groove matched with the first buckle is arranged on the shell, a second clamping groove matched with the second buckle is arranged on the inner wall of the shell, an extension arm is arranged at the tail part of the motor bracket, the extension arm is located below the buckle structure, the shell is provided with a groove matched with the extension arm, and the extension arm extends into the groove.

The advantage is, cooperation structure through extension arm and recess, the inner wall of recess is spacing to the extension arm, make electric toothbrush limit the deformation volume of extension arm when receiving external force, make the connection of base subassembly and brush holder more reliable, prevent to assemble the back because fall or other reasons make the inside deformation of second buckle inefficacy lead to motor support or base subassembly to drop, and then prevent the aforesaid because the waterproof effect that motor support or base subassembly drop and lead to produces the influence, it is more reliable to be connected through this technical scheme base subassembly and motor support, motor support is more reliable with being connected of brush holder, vibration in the normal use process, it can not exert an influence to waterproof effect to fall.

Preferably, the housing has a baffle extending in a direction of a longitudinal axis of the electric toothbrush, the first catching groove is provided on the baffle, the housing further has an annular wall contacting the housing, and the groove is defined by the baffle and the annular wall.

The advantage is, is convenient for obtain integrated into one piece's casing, simple structure, reduce cost.

Preferably, both sides of the baffle are connected with the annular wall, and the extension arm abuts against the part of the baffle connected with the annular wall.

The advantage is, can all carry on spacingly for extending the arm all around, the deformation of restriction extension arm when electric toothbrush falls, strikes other stress condition under, improves the connection reliability and the sealing reliability between the part.

Preferably, the length of the elongate arm is less than or equal to the depth of the recess.

The electric toothbrush has the advantages that the deformation of the extension arm under other stress states such as falling and impact of the electric toothbrush is limited; when the length of the extension arm is larger than the depth of the groove, the overall length of the electric toothbrush can be increased, and the waste of the internal space can be caused.

Preferably, the base subassembly still includes the subassembly that charges, the subassembly that charges is including the interface that charges and its fixed connection's PCB board, the subassembly that charges is located just the bottom of casing is equipped with the confession the interface that charges exposes so that external power source's the opening that charges, be equipped with on the baffle be used for doing the guide rail that provides the direction when subassembly and the casing assembly charge, the guide rail with the cooperation of PCB board.

The baffle plate has the advantages that multiple functions are integrated on the baffle plate, for example, the baffle plate can be used as a setting carrier of the first clamping groove; and as one of important components for limiting the groove, the guide rail for installing the PCB is also arranged to provide guidance for quick installation of the PCB, so that the structure is more compact, and the installation of the PCB is simpler and quicker.

Preferably, a side of the baffle plate, which is away from the groove, extends out of a limiting part in the direction of the longitudinal axis of the base assembly, and the limiting part and the guide rail form a limiting groove for limiting the displacement of the PCB.

The advantage is, through the setting up of restriction groove make the PCB board installation back be difficult to with the casing break away from the cooperation position, avoid shifting the sealed effect variation that makes the machine after.

Preferably, the base subassembly still includes the subassembly that charges, the subassembly that charges is including the interface that charges and its fixed connection's PCB board, the subassembly that charges is located just the bottom of casing is equipped with the confession the interface that charges exposes so that external power source's the opening that charges, motor support includes the mounting, the mounting is used for the subassembly that charges applys the effort of following base subassembly axis direction.

The technical scheme has the advantages that the position of the charging assembly is relatively fixed, and the matching reliability of the charging interface and the external power supply is improved; the charging assembly is fixed through the structure of the motor support, so that structural parts are reduced, and the structure is simplified; the interface that can make charge with the open-ended cooperation that charges inseparabler, inside preventing that water from entering into the brush holder from the interface that charges and the open-ended cooperation gap that charges, improve water-proof effects.

Preferably, the fixing member abuts against the PCB to apply an acting force to the charging assembly along the axial direction of the base assembly.

The advantage is, the material of PCB board is comparatively hard, and it is difficult to cause the damage of components and parts to apply the effort to the PCB board, and the PCB board generally is in the same place through welded connection with the interface that charges, through applying the effort indirect effort of applying to the interface that charges to the PCB board, and the power that the interface that charges received can be less than the power of actually applying, can reduce PCB and the interface that charges and break away from welded risk, guarantees the reliability that charges.

Preferably, the fixing member abuts against the charging interface to apply an acting force to the charging assembly along the axial direction of the base assembly.

The advantage is, through for the interface direct application effort that charges, the cross-sectional area of the interface that charges is great, and the component structure that the last effort was applyed to the interface that charges of motor support can be done simpler, can reduce the structural requirement to motor support when making the interface that charges and the cooperation of the opening part that charges more reliable.

Preferably, the fixing piece is respectively abutted against the charging interface and the PCB and used for applying acting force along the axis direction of the base assembly to the charging assembly.

The advantage is, can reduce the structural requirement to the motor support when making the cooperation of the opening part that charges with the interface that charges more reliable.

Drawings

Fig. 1 is a schematic structural view of the electric toothbrush of the present invention.

Fig. 2 is an exploded view of the electric toothbrush of the present invention.

Fig. 3 is a schematic view of the assembly structure of the motor bracket and the base assembly of the present invention.

Fig. 4 is a sectional view of a portion indicated by a in fig. 1.

Fig. 5 is a schematic structural diagram of the groove of the present invention.

Fig. 6 is a schematic structural diagram of the housing of the present invention.

The names of the various components referred to in the figures are as follows,

1. a brush head; 2. a brush handle; 201. a housing; 202. a motor bracket; 3. a base assembly; 301. a housing; 302. a charging interface; 303. a PCB board; 304. a charging opening; 4. a first buckle; 5. a second buckle; 6. a first card slot; 7. a second card slot; 8. extending the arm; 9. a groove; 10. a baffle plate; 11. an annular wall; 12. a guide rail; 13. a limiting member; 14. defining a slot; 15. and a fixing member.

Detailed Description

The following describes the present invention in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, an electric toothbrush with reliable assembly includes a brush head 1, a brush handle 22 and a base assembly 3, the brush head 1 is detachably connected to the brush handle 22, the base assembly 3 is located at the bottom of the brush handle 22, wherein the brush handle 22 includes a housing 201 and a motor bracket 202 arranged in the housing 201 and used for fixing a motor, a fastening structure is arranged at the bottom of the motor bracket 202, the fastening structure includes a first fastening 4 and a second fastening 5, the first fastening 4 and the second fastening 5 are arranged opposite to each other, the base assembly 3 includes a housing 301, a first fastening groove 6 matched with the first fastening 4 is arranged on the housing 301, a second fastening groove 7 matched with the second fastening 5 is arranged on the inner wall of the housing 201, an extending arm 8 is arranged at the tail of the motor bracket 202, the extending arm 8 is located below the fastening structure, the housing 301 is provided with a recess 9 cooperating with the extension arm 8, the extension arm 8 extending into the recess 9.

Through the cooperation structure of extension arm 8 and recess 9, the inner wall of recess 9 is spacing to extension arm 8, make electric toothbrush limit extension arm 8's deformation volume when receiving external force, make base subassembly 3 and brush holder 22 be connected more reliable, prevent to assemble the back because fall or other reasons make the inside deformation of second buckle 5 inefficacy lead to motor support 202 or base subassembly 3 to drop, and then prevent the aforesaid because motor support 202 or base subassembly 3 drop the water-proof effects who leads to and produce the influence, it is more reliable with motor support 202 to be connected through this technical scheme base subassembly 3, motor support 202 is more reliable with brush holder 22's connection, vibration in the normal use process, it can not exert an influence to water-proof effects to fall.

As shown in fig. 4 and 5, the housing 301 has a baffle 10 extending in a longitudinal axis direction of the electric toothbrush, the first engaging groove 6 is provided on the baffle 10, the housing 301 further has an annular wall 11 contacting the casing 201, and the recess 9 is defined by the baffle 10 and the annular wall 11. The integrally formed shell 301 is convenient to obtain, the structure is simple, and the cost is reduced.

The two sides of the baffle plate 10 are connected with the annular wall 11, and the extension arm 8 abuts against the part of the baffle plate 10 connected with the annular wall 11. Can all carry on spacingly for extension arm 8 all around, the deformation of extension arm 8 when electric toothbrush falls, other stress states such as striking when limiting, improves the connection reliability and the sealing reliability between the part.

The length of the extension arm 8 is less than or equal to the depth of the groove 9. The requirement that the extension arm 8 deforms when the electric toothbrush falls, impacts and other stressed states is limited; when the length of the extension arm 8 is greater than the depth of the groove 9, the overall length of the electric toothbrush is increased, and the internal space is wasted.

As shown in fig. 5 and 6, the base assembly 3 further includes a charging assembly, the charging assembly includes a charging interface 302 and a PCB 303 fixedly connected therewith, the charging assembly is disposed in the casing 301, the bottom of the casing 301 is provided with a charging opening 304 for the charging interface 302 to be exposed so as to be convenient for an external power supply, a guide rail 12 for guiding the charging assembly when being assembled with the casing 301 is disposed on the baffle 10, and the guide rail 12 is matched with the PCB 303. The baffle 10 integrates multiple functions, for example, the baffle 10 can be used as a setting carrier of the first card slot 6; and as one of the important components for limiting the groove 9, the guide rail 12 for installing the PCB 303 is also arranged to provide a guide for quickly installing the PCB 303, so that the structure is more compact, and the installation of the PCB 303 is simpler and quicker.

A side of the baffle 10 facing away from the groove 9 extends to a limiting member 13 in a direction of a longitudinal axis of the base assembly 3, and the limiting member 13 and the guide rail 12 form a limiting groove 14 for limiting the displacement of the PCB 303. The PCB 303 is not easy to be separated from the matching position of the shell 301 after being installed by the limiting groove 14, and the sealing effect of the machine is prevented from being poor after the displacement.

Base subassembly 3 still includes the subassembly that charges, the subassembly that charges is including the interface 302 that charges and PCB board 303 with it fixed connection, the subassembly that charges is located in the casing 301 just the bottom of casing 301 is equipped with the confession the interface 302 that charges exposes so that external power source's opening 304 that charges, motor support 202 includes mounting 15, mounting 15 is used for the subassembly that charges applys the effort of following base subassembly 3 axis direction. According to the technical scheme, the position of the charging assembly is relatively fixed, so that the matching reliability of the charging interface 302 and an external power supply is improved; the charging assembly is fixed through the structure of the motor support 202, so that structural parts are reduced, and the structure is simplified; the interface 302 that can make charge and the cooperation of opening 304 that charges are inseparabler, and inside preventing that water from entering into brush holder 22 from the cooperation gap of the interface 302 that charges and opening 304 that charges, improvement water-proof effects. In this example, the fixing member 15 abuts against the PCB 303 to apply a force to the charging unit in the axial direction of the base unit 3. The material of PCB 303 is comparatively hard, and it is difficult to cause the damage of components and parts to exert the effort to PCB 303, and PCB 303 and the interface 302 that charges are generally in the same place through welded connection, through exerting the indirect effort of exerting the effort to the interface 302 that charges to PCB 303, and the power that the interface 302 that charges received can be less than the actual power of exerting, can reduce PCB and the interface 302 that charges and break away from the welded risk, guarantees the reliability that charges.

It will be appreciated that the fixing member 15 abuts against the charging interface 302 for applying a force to the charging assembly along the axis of the base assembly 3. By directly applying the acting force to the charging interface 302, the cross-sectional area of the charging interface 302 is larger, the structure of the part of the motor support 202 applying the acting force to the charging interface 302 can be simpler, and the structural requirement on the motor support 202 can be reduced while the matching between the charging interface 302 and the charging opening 304 is more reliable.

It can be understood that the fixing member 15 abuts against the charging interface 302 and the PCB 303 respectively for applying a force to the charging assembly along the axial direction of the base assembly 3. The structural requirements on the motor bracket 202 can be reduced while the mating of the charging interface 302 with the charging opening 304 is made more reliable.

The above embodiments are merely preferred embodiments of the present invention, not all embodiments of the present invention, and according to the principles of the present invention, those skilled in the art can make various modifications without departing from the spirit of the present invention, all of which shall fall within the scope of the present invention defined by the claims.

Claims

1. An electric toothbrush with reliable assembly comprises a brush head, a brush handle and a base component, wherein the brush head is detachably connected with the brush handle, the base component is positioned at the bottom of the brush handle, it is characterized in that the brush handle comprises a shell and a motor bracket which is arranged in the shell and used for fixing a motor, the bottom of the motor bracket is provided with a buckle structure which comprises a first buckle and a second buckle, the first buckle and the second buckle are arranged oppositely, the base component comprises a shell, a first clamping groove matched with the first buckle is arranged on the shell, a second clamping groove matched with the second buckle is arranged on the inner wall of the shell, an extension arm is arranged at the tail part of the motor bracket, the extension arm is located below the buckle structure, the shell is provided with a groove matched with the extension arm, and the extension arm extends into the groove.

2. The electric toothbrush of claim 1, wherein the housing has a baffle extending in a direction of a longitudinal axis of the electric toothbrush, the first card slot being provided on the baffle, the housing further having an annular wall in contact with the housing, the recess being defined by the baffle and the annular wall.

3. The powered toothbrush as defined in claim 2, wherein the baffle is connected to the annular wall on both sides thereof, the elongated arm abutting the portion of the baffle connected to the annular wall.

4. The electric toothbrush of claim 1, wherein the length of the elongated arm is less than or equal to the depth of the groove.

5. The electric toothbrush according to claim 3, wherein the base assembly further comprises a charging assembly, the charging assembly comprises a charging interface and a PCB fixedly connected with the charging interface, the charging assembly is arranged in the housing, a charging opening for exposing the charging interface to facilitate an external power supply is formed in the bottom of the housing, a guide rail for guiding the charging assembly when the charging assembly is assembled with the housing is formed in the baffle, and the guide rail is matched with the PCB.

6. The electric toothbrush according to claim 5, wherein a side of the baffle facing away from the groove extends to a position limiting member in a direction of a longitudinal axis of the base assembly, and the position limiting member and the guide rail form a limiting groove for limiting the displacement of the PCB.

7. The electric toothbrush according to claim 1, wherein the base assembly further comprises a charging assembly, the charging assembly comprises a charging interface and a PCB fixedly connected with the charging interface, the charging assembly is arranged in the housing, a charging opening for exposing the charging interface to facilitate external power supply is formed in the bottom of the housing, and the motor support comprises a fixing member for applying acting force to the charging assembly along the axial direction of the base assembly.

8. The electric toothbrush of claim 7, wherein the fixture abuts the PCB board for applying a force to the charging assembly in a direction along the axis of the base assembly.

9. The powered toothbrush as defined in claim 7, wherein the retaining member abuts the charging interface for applying a force to the charging assembly in a direction along the axis of the base assembly.

10. The powered toothbrush as defined in claim 7, wherein the fixture abuts against the charging interface and the PCB for applying a force to the charging assembly in a direction along the axis of the base assembly.