CN210744961U

CN210744961U - Motor integrated with driving module and electric toothbrush

Info

Publication number: CN210744961U
Application number: CN201921647865.1U
Authority: CN
Inventors: 黄拔梓; 黄道臣
Original assignee: Shenzhen Libode Technology Co ltd
Current assignee: Shenzhen Libode Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-12
Anticipated expiration: 2029-09-29

Abstract

The utility model provides a motor integrated with a driving module and an electric toothbrush, wherein the motor comprises a shell, a machine main body, an output shaft and a circuit board, the shell comprises a bracket, a top cover connected with one end of the bracket and a bottom cover connected with the other end of the bracket, and the top cover is provided with a through hole; the machine main body is connected with the shell; the output shaft is connected with the machine main body and penetrates through the through hole, and the output shaft and the through hole are arranged at intervals; the circuit board is connected to one side of the bottom cover facing the top cover and is electrically connected to the machine main body, and the circuit board can drive the output shaft to vibrate through the machine main body. The utility model discloses the circuit board that will be used for controlling the machine main part to vibrate with drive output shaft is independent from traditional circuit board that has a plurality of functional module, directly links to each other with the main part, when the machine main part of different specifications is changed to needs, only need to change this circuit board that corresponds can, and needn't dismantle or change the circuit board that is used for controlling other electronic component, avoided the waste of resource, still realized the quick replacement of circuit board.

Description

Motor integrated with driving module and electric toothbrush

Technical Field

The utility model belongs to the technical field of the articles for washing one's face and rinsing one's mouth, especially, relate to a motor and electric toothbrush of integrated drive module.

Background

Along with the more and more high attention degree of people to oral hygiene, electric toothbrush's use is more and more popularized, and electric toothbrush passes through the quick rotation of motor inner cassette mechanism or vibrations, makes the brush head produce high frequency vibrations, decomposes into the fine foam with toothpaste in the twinkling of an eye, goes deep into clean interdental space, and meanwhile, the vibration of brush hair can promote the blood circulation of oral cavity, has the massage effect to gum tissue.

Electric toothbrush usually includes the motor, the switch, power and circuit board, the circuit board has a plurality of function module in order to control switch respectively, a power supply, motor or other electronic component, when electric toothbrush changes the motor of different specifications for satisfying the customer's demand, the function module that can control is carried out to this motor to the change that also needs adaptability, because the function module that is used for controlling each electron device on the electric toothbrush all integrates on a circuit board, consequently need to change whole circuit board, not only caused the waste of resource, the process of changing the circuit board is also very loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integrated drive module's motor and electric toothbrush aims at solving among the prior art because need change whole circuit board and cause the waste of resource after changing the machine main part, and the change process is also very loaded down with trivial details technical problem.

The utility model discloses a realize like this, an integrated drive module's motor for electric toothbrush, include:

the shell comprises a bracket, a top cover connected to one end of the bracket and a bottom cover connected to the other end of the bracket, wherein the top cover is provided with a through hole;

a main body connected to the housing;

the output shaft is connected to the machine body and penetrates through the through hole, and the output shaft and the through hole are arranged at intervals;

and the circuit board is connected to one side of the bottom cover facing the top cover and is electrically connected to the machine body, and the circuit board can drive the output shaft to vibrate by controlling the machine body.

In this embodiment, the main part including connect in the coil of casing and connect in the magnet steel of bottom, the coil with the circuit board electricity is connected, the magnet steel with the coil interval sets up, the output shaft connect in the magnet steel, the coil can pass through the electromagnetic induction drive the magnet steel motion is so that the output shaft vibrates.

In this embodiment, the machine body further includes an iron core connected to the bracket, and the coil is wound around the iron core and has an axis perpendicular to the extending direction of the output shaft.

In this embodiment, the main body further includes an elastic piece electrically connected to the circuit board, one end of the elastic piece is connected to the top cover and the other end thereof is connected to the bottom cover, the magnetic steel and the output shaft are both connected to the elastic piece, and the elastic piece can generate elastic deformation when the magnetic steel moves.

In this embodiment, the iron core has seted up the U-shaped groove, the U-shaped groove is followed the extending direction of output shaft runs through the setting, shell fragment and magnet steel are located the U-shaped inslot and with the cell wall interval of U-shaped groove sets up.

In this embodiment, the main body further includes a fixing frame connected to the elastic sheet, the fixing frame includes a connecting portion connected to the elastic sheet and an extending portion connected to the connecting portion, the extending portion and the connecting portion are arranged in a staggered manner in the extending direction of the output shaft, and the output shaft is connected to the extending portion.

In this embodiment, the magnet steel has two, two the magnet steel all connect in the mount just respectively towards a cell wall of U-shaped groove.

In this embodiment, the main body further comprises a shielding cover connected to one side of the U-shaped groove notch facing the fixing frame, and the shielding cover is used for shielding the magnetic signal sent out by the magnetic steel.

In this embodiment, an insertion groove is formed in an end surface of the bracket facing the bottom cover, the bottom cover includes a bottom plate and a protrusion connected to an edge of the bottom plate, and the protrusion is inserted into the insertion groove.

The utility model also provides an electric toothbrush, include as above the motor of integrated drive module.

The utility model discloses technical effect for prior art is: the utility model discloses the circuit board that will be used for the controller main part to vibrate with drive output shaft is independent from traditional circuit board that has a plurality of functional module, drive module and the main part of the motor as integrated drive module are direct to be linked together, make this circuit board, main part and output shaft form an integral structure and can carry out the independent operation, when the machine main part of different specifications is changed to needs, only need to change this circuit board that corresponds can, perhaps the motor of this integrated drive module is changed to the complete set, and needn't dismantle or change the circuit board that is used for controlling other electronic component, the waste of resource has been avoided, the quick replacement of circuit board has still been realized in this kind of unit mount's setting, prevent to appear other electron device bad contacts's the condition owing to change the circuit board.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structure diagram of a motor integrated with a driving module according to an embodiment of the present invention;

fig. 2 is a partial exploded view of a motor integrated with a driving module according to an embodiment of the present invention;

fig. 3 is an exploded view of a motor integrated with a driving module according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of an integrated drive module motor according to an embodiment of the present invention.

Description of reference numerals:

10. a housing; 11. a support; 111. inserting grooves; 12. a top cover; 121. perforating; 13. a bottom cover; 131. a base plate; 132. a bump; 20. a machine main body; 21. an iron core; 211. a U-shaped groove; 22. magnetic steel; 23. a spring plate; 24. a fixed mount; 241. a connecting portion; 242. an extension portion; 25. a shield case; 30. an output shaft; 40. circuit board

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "top", "bottom", "inner", "outer", and the like refer to orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

The utility model provides an integrated drive module's motor, this integrated drive module's motor is mainly applied to electric toothbrush.

Referring to fig. 1 and 2, the motor of the integrated driving module according to the embodiment of the present invention includes a housing 10, a main body 20 connected to the housing 10, an output shaft 30 connected to the main body 20, and a circuit board 40 electrically connected to the main body 20.

Referring to fig. 1 and 4, the housing 10 includes a bracket 11, a top cover 12 connected to one end of the bracket 11, and a bottom cover 13 connected to the other end of the bracket 11, wherein the top cover 12 is provided with a through hole 121. The housing 10 is used to connect the motor of the integrated drive module to the electric toothbrush.

Referring to fig. 4, the output shaft 30 passes through the through hole 121, and the output shaft 30 and the through hole 121 are spaced apart from each other. Therefore, the output shaft 30 does not vibrate to the bracket 11 in the vibration process, so that the vibration amplitude of the bracket 11 is reduced, and the bracket 11 is prevented from limiting the vibration amplitude of the output shaft 30.

Referring to fig. 1 and 4, the circuit board 40 is connected to a side of the bottom cover 13 facing the top cover 12 to prevent the circuit board 40 from being knocked or scratched, and the circuit board 40 can drive the output shaft 30 to vibrate through the controller main body 20.

The utility model discloses integrated drive module's motor will be used for controller main part 20 to independently come out from traditional circuit board 40 that has a plurality of function module with circuit board 40 that drive output shaft 30 vibrates, and link to each other with main part 20 through casing 10, make this circuit board 40, main part 20 and output shaft 30 form a integral structure and can carry out independent operation, when the main part 20 of different specifications needs to be changed, only need to change this circuit board 40 that corresponds can, perhaps this integrated drive module's motor is changed to complete set, and needn't dismantle or change the circuit board 40 that is used for controlling other electronic component, the waste of resource has been avoided, circuit board 40's quick replacement has still been realized in this kind of unit mount's setting, prevent to appear other electronic device bad conditions of contact because of changing circuit board 40.

Will the embodiment of the utility model provides an after circuit board 40 independently comes out for control other electron device's circuit board 40 volume reduces, has saved electric toothbrush's inner space, is favorable to electric toothbrush's miniaturized setting. The direct connection between the main body 20 and the circuit board 40 also enables the circuit board 40 and the main body 20 to vibrate synchronously, thereby preventing poor contact between the circuit board 40 and the main body 20 caused by the connection wires between the circuit board 40 and the main body 20 being broken by vibration.

The main body 20 may be a brush main body 20 or a brushless main body 20, in this embodiment, the main body 20 belongs to the brushless main body 20, and referring to fig. 2 and 3, the main body 20 includes a coil connected to the casing 10, a magnetic steel 22 connected to the bottom cover 13, an iron core 21 connected to the bracket 11, a spring sheet 23 electrically connected to the circuit board 40, a fixing frame 24 connected to the spring sheet 23, and a shielding cover 25 connected to the fixing frame 24.

Referring to fig. 2 and 4, the coil is electrically connected to the circuit board 40 or the power supply, the magnetic steel 22 and the coil are disposed at an interval to prevent the coil from obstructing the movement of the magnetic steel 22, the output shaft 30 is connected to the magnetic steel 22, and the coil can drive the magnetic steel 22 to move through electromagnetic induction to vibrate the output shaft 30. When the coil is energized, a magnetic field is generated, and the magnetic steel 22 has magnetism, so that the magnetic steel 22 moves under the influence of the magnetic field, and the output shaft 30 is driven to vibrate. The above movement may be a change of magnetic field by controlling the current direction of the coil to make the magnetic steel 22 generate a reciprocating motion, thereby driving the output shaft 30 to vibrate. The magnetic steels 22 are provided in two to make the machine body 20 vibration-balanced and enhance the vibration amplitude of the output shaft 30.

In the present embodiment, the coil is wound around the iron core 21 and the axis thereof is perpendicular to the extending direction of the output shaft 30. The magnetic steel 22 can rotate around the rotation axis extending along the extending direction of the output shaft 30 by the right-hand theorem, so as to drive the output shaft 30 to swing.

Referring to fig. 2 and 4, the elastic piece 23 has elasticity and is fixedly connected to the magnetic steel 22, at least one end of the elastic piece 23 is connected to the top cover 12 or the bottom cover 13, the magnetic steel 22 and the output shaft 30 are both connected to the elastic piece 23, when the magnetic steel 22 starts to move, the magnetic steel 22 drives the elastic piece 23 to twist, and the elastic piece 23 can improve the swing amplitude of the magnetic steel 22 through the elastic restoring force generated after the elastic piece is elastically deformed, so that the vibration amplitude of the output shaft 30 is further improved, and the energy consumption is saved. In this embodiment, one end of the elastic sheet 23 is connected to the top cover 12 and the other end thereof is connected to the bottom cover 13, so as to increase the stability of flux linkage and improve the acting force of the elastic sheet 23 on the magnetic steel 22.

In the embodiment of the present invention, please refer to fig. 2 and fig. 3, the iron core 21 is a strip shape extending along the extending direction of the output shaft 30 and has a U-shaped groove 211, the U-shaped groove 211 runs through the extending direction of the output shaft 30, and the elastic sheet 23 and the magnetic steel 22 are located in the U-shaped groove 211 and spaced apart from the groove wall of the U-shaped groove 211. The U-shaped slot 211 plays a certain role in protecting the spring plate 23 and the magnetic steel 22 from external impact, and the coil is preferably wound around the whole iron core 21 to enhance the magnetic field generated by the coil through electromagnetic induction.

Referring to fig. 2 and 4, the fixing frame 24 is used for connecting the elastic piece 23 and the output shaft 30, the fixing frame 24 includes a connecting portion 241 connected to the elastic piece 23 and an extending portion 242 connected to the connecting portion 241, and the output shaft 30 is connected to the extending portion 242. In this embodiment, referring to fig. 3, the extending portion 242 and the connecting portion 241 are arranged in a staggered manner in the extending direction of the output shaft 30, and the extending portion 242 extends toward a direction away from the elastic piece 23, when the magnetic steel 22 rotates by using the elastic piece 23 as a shaft under the action of a magnetic field, the extending portion 242 is located at an outer ring of the connecting portion 241, that is, the extending portion 242 has a larger movement amplitude relative to the connecting portion 241, compared with the arrangement in which the extending portion 242 and the connecting portion 241 are arranged in a superposed manner in the extending direction of the output shaft 30, the offset arrangement enables the output shaft 30 connected to the extending portion 242 to have a larger vibration amplitude.

Referring to fig. 2, the two magnetic steels 22 are connected to the fixing frame 24 and respectively face a slot wall of the U-shaped slot 211, so that the magnetic steels 22 can be fixed and the two magnetic steels 22 can obtain a balanced magnetic action, thereby preventing the magnetic steels 22 from colliding with the iron core 21 due to the deviation caused by unbalanced circumferential magnetic force of the elastic sheet 23.

Referring to fig. 1 and 4, the shielding cover 25 is connected to one side of the fixing frame 24 facing the notch of the U-shaped groove 211, and the magnetic steel 22 is located at the inner side of the shielding cover 25 facing the bottom of the U-shaped groove 211, so that the shielding cover 25 can shield the magnetic signal emitted by the magnetic steel 22, and the magnetic steel 22 is prevented from being interfered by other magnetic signals or electrical signals.

Referring to fig. 2 and 3, the end surface of the bracket 11 facing the bottom cover 13 is provided with an insertion groove 111, the bottom cover 13 includes a bottom plate 131 and a protrusion 132 connected to an edge of the bottom plate 131, the bracket 11 and the bottom cover 13 are fixedly connected by the insertion of the protrusion 132 and the insertion groove 111, the insertion is convenient for assembly and saves parts.

The utility model also provides an electric toothbrush, including the motor of the integrated drive module that each embodiment provided. The motor of the integrated driving module has the same structural features as the motors of the integrated driving modules in the embodiments, and the functions of the motors are also the same, which are not described herein.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An integrated drive module's motor for electric toothbrush, comprising:

a main body connected to the housing;

2. The module integrated motor according to claim 1, wherein the main body includes a coil connected to the housing and a magnetic steel connected to the bottom cover, the coil is electrically connected to the circuit board, the magnetic steel is spaced apart from the coil, the output shaft is connected to the magnetic steel, and the coil can drive the magnetic steel to move by electromagnetic induction to vibrate the output shaft.

3. The integrated drive module motor according to claim 2, wherein the motor body further comprises a core connected to the bracket, and the coil is wound around the core with an axis perpendicular to an extending direction of the output shaft.

4. The integrated driving module motor of claim 3, wherein the main body further comprises a spring plate electrically connected to the circuit board, one end of the spring plate is connected to the top cover and the other end of the spring plate is connected to the bottom cover, the magnetic steel and the output shaft are both connected to the spring plate, and the spring plate can elastically deform when the magnetic steel moves.

5. The module-integrated motor according to claim 4, wherein the iron core has a U-shaped slot, the U-shaped slot is disposed through the U-shaped slot along the extending direction of the output shaft, and the resilient plate and the magnetic steel are disposed in the U-shaped slot and spaced apart from the slot wall of the U-shaped slot.

6. The motor with integrated driving module of claim 5, wherein the main body further comprises a fixing frame connected to the elastic piece, the fixing frame comprises a connecting portion connected to the elastic piece and an extending portion connected to the connecting portion, the extending portion and the connecting portion are arranged in a staggered manner in the extending direction of the output shaft, and the output shaft is connected to the extending portion.

7. The integrated drive module motor of claim 6, wherein there are two of the magnetic steels, and both of the magnetic steels are connected to the fixing frame and face a wall of the U-shaped slot.

8. The integrated drive module motor according to claim 6, wherein the main body further comprises a shielding cover connected to a side of the fixing frame facing the notch of the U-shaped groove, and the shielding cover is used for shielding the magnetic signal emitted from the magnetic steel.

9. The integrated drive module motor of any one of claims 4 to 8, wherein the end surface of the bracket facing the bottom cover is provided with a plug-in slot, and the bottom cover comprises a bottom plate and a projection connected to an edge of the bottom plate, and the projection is plugged in the plug-in slot.

10. An electric toothbrush comprising the motor of the integrated drive module of any one of claims 1 to 9.