Power supply structure for electric toothbrush and electric toothbrush

Abstract

The utility model discloses a power supply structure for an electric toothbrush and the electric toothbrush, and relates to the technical field of the electric toothbrush, the power supply structure for the electric toothbrush comprises a support, a power part, a power supply part and an electric connection assembly; the bracket is provided with a plurality of mounting cavities; the power piece is mounted in the motor bracket and is provided with a positive plate and a negative plate; the power part is electrically connected with the power part; the electric connecting assembly is detachably installed in the support, the power supply piece drives the power piece through the electric connecting assembly, the electric connecting assembly comprises a first connecting piece, a second connecting piece and a third connecting piece, and the first connecting piece, the second connecting piece and the third connecting piece are detachably connected with the support; according to the technical scheme provided by the utility model, the electric connection assembly and the bracket piece are detachably arranged; therefore, the electric connection assembly can be partially detached from the power supply structure for the electric toothbrush so as to facilitate replacement or maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to a power supply structure for electric toothbrushes and an electric toothbrush. Background Art

[0002] An electric toothbrush relies on electricity to make the brush head vibrate. The rapid rotation or vibration of the motor core causes the brush head to produce high-frequency vibrations, instantly breaking down the toothpaste into fine foam and deeply cleaning the gaps between teeth. At the same time, the vibration of the bristles can promote blood circulation in the mouth and have a massage effect on the gum tissue.

[0003] An electric toothbrush generally includes a brush head and a shell, inside which a power component for driving the brush head to vibrate and a power supply component for supplying power to the power component are installed; existing power supplies are mostly installed in the shell through a motor bracket to supply power to the power component, and the motor bracket structure is not removable. When the electrical connectors in the motor bracket are rusted or have poor contact and need repair, it is difficult to replace the internal electrical connectors accordingly, and the entire motor bracket can only be replaced, which easily leads to a waste of resources. Utility Model Content

[0004] The main purpose of the utility model is to provide a power supply structure for an electric toothbrush and an electric toothbrush, aiming to enable the power supply structure for the electric toothbrush to be partially disassembled for easy replacement or maintenance.

[0005] To achieve the above-mentioned purpose, the power supply structure for an electric toothbrush proposed in the utility model includes: a bracket, a power piece, a power supply piece and an electrical connection assembly; the bracket is fixedly installed in the electric toothbrush, and the bracket has multiple installation cavities; the power piece is installed in the motor bracket, and the power piece has a positive electrode sheet and a negative electrode sheet; the power supply piece is electrically connected to the power piece, and the power supply piece has a positive terminal and a negative terminal; the electrical connection assembly is detachably installed in the bracket, and the power supply piece drives the power piece through the electrical connection assembly, and the electrical connection assembly includes a first connection piece, a second connection piece and a third connection piece, the first connection piece electrically connects the positive electrode sheet and the positive terminal, the second connection piece electrically connects the negative electrode sheet and the third connection piece, the third connection piece electrically connects the second connection piece and the negative terminal, and the first connection piece, the second connection piece and the third connection piece are respectively detachably connected to the bracket.

[0006] In one embodiment, the bracket includes a first mounting cavity and a second mounting cavity that are spaced apart, the power component is disposed in the first mounting cavity, the power supply component is disposed in the second mounting cavity, and the positive end of the power supply component is disposed close to the power component; the positive electrode sheet and the negative electrode sheet are disposed on the outer peripheral wall of the power component.

[0007] In one embodiment, a connector groove is provided between the first mounting cavity and the second mounting cavity, the first connector includes a first sheet body provided on the outer peripheral side of the power member and a second sheet body provided in the connector groove, an avoidance hole is provided on a side of the connector groove close to the second mounting cavity, the first sheet body is connected to the positive electrode sheet, and the second sheet body is abutted against the positive terminal through the avoidance hole.

[0008] In one embodiment, a limiting ring is provided on the first sheet, the positive electrode sheet is inserted into the limiting ring, and the second sheet is provided with a contact protruding toward the power supply, and the contact abuts against the positive terminal of the power supply component through the avoidance hole.

[0009] In one embodiment, the second connecting member is detachably mounted on the outer side wall of the bracket, and the second connecting member includes a pressing portion and a fixing portion that are connected to each other, one end of the pressing portion is fixedly connected to the fixing portion, and the other end deviates by a certain preset angle toward a side away from the power member, the pressing portion is elastic, and can abut against the negative electrode sheet of the power member in a deformed state, and the fixing portion is detachably connected to the bracket.

[0010] In one embodiment, the fixing portion is provided with a plurality of limiting holes, the bracket is provided with limiting protrusions corresponding to the limiting holes one by one, and the limiting protrusions are penetrated through the limiting holes.

[0011] In one embodiment, the bracket is also provided with a fourth mounting cavity connected to the second mounting cavity, the third connecting member is provided in the fourth mounting cavity, and the third connecting member includes an abutting portion provided along the side wall of the fourth mounting cavity and an elastic portion provided at the bottom of the fourth mounting cavity, the abutting portion abuts against the fixed portion, and the elastic portion abuts against the negative terminal.

[0012] In one embodiment, the elastic portion is provided with a third sheet and an elastic member, the third sheet is provided at the bottom of the fourth mounting cavity and connected to the abutting portion, one end of the elastic member is connected to the third sheet, and the other end abuts against the negative pole of the power supply.

[0013] In one embodiment, the third sheet is provided with a buckle, and the elastic member is snapped into the buckle to be detachably connected to the third sheet.

[0014] The utility model also proposes an electric toothbrush, comprising a shell, a brush head and any one of the above power supply structures for electric toothbrushes, wherein the power supply structure for electric toothbrushes is fixedly installed in the shell, and the power member is drivingly connected to the brush head.

[0015] The technical solution of the utility model is to adopt a bracket including multiple installation cavities in the power supply structure for an electric toothbrush, and arrange the power part, the power supply part and the electrical connection assembly in the installation cavity. The electrical connection assembly connects the power part and the power supply part, and a first connection part electrically connected to the positive electrode sheet of the power part and the positive electrode of the power supply part, a second connection part electrically connected to the negative electrode sheet of the power part and the third connection part, and a third connection part electrically connected to the second connection part and the negative electrode of the power supply part are arranged in the electrical connection assembly; the electrical connection assembly is detachably connected to the installation cavity so that the electrical connection assembly can be partially removed from the power supply structure for an electric toothbrush. When any connection part is rusted or has poor contact, it is only necessary to remove and replace the damaged connection part without replacing the entire structure, thereby saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a power supply structure for an electric toothbrush according to an embodiment of the present invention;

[0018] Figure 2 A schematic structural diagram of another embodiment of a power supply structure for an electric toothbrush provided by the utility model;

[0019] Figure 3 This is a structural schematic diagram of an embodiment of an electric toothbrush provided by the utility model.

[0020] Description of Figure Numbers:

[0021] 100. Power supply structure for electric toothbrush; 1. bracket; 11. connector slot; 2. power member; 3. power member; 4. electrical connection assembly; 41. first connector; 411. first sheet; 412. second sheet; 42. second connector; 421. fixing portion; 422. pressing portion; 43. third connector; 431. abutting portion; 432. elastic portion; 433. third sheet; 434. elastic member; 200. electric toothbrush; 20. housing; 30. brush head.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] The utility model provides a power supply structure for an electric toothbrush.

[0027] See also Figure 1-3In one embodiment of the utility model, the power supply structure for an electric toothbrush comprises: a bracket 1, a power piece 2, a power supply piece 3 and an electrical connection component 4; the bracket 1 is fixedly installed in the electric toothbrush, and the bracket 1 has a plurality of installation cavities; the power piece 2 is installed in the motor bracket 1, and the power piece 2 has a positive electrode sheet and a negative electrode sheet; the power supply piece 3 is electrically connected to the power piece 2, and the power supply piece 3 has a positive terminal and a negative terminal; the electrical connection component 4 is detachably installed in the bracket 1, and the power supply piece 3 drives the power piece 2 through the electrical connection component 4, and the electrical connection component 4 comprises a first connection piece 41, a second connection piece 42 and a third connection piece 43, the first connection piece 41 electrically connects the positive electrode sheet and the positive terminal, the second connection piece 42 electrically connects the negative electrode sheet and the third connection piece 43, the third connection piece 43 electrically connects the second connection piece 42 and the negative terminal, and the first connection piece 41, the second connection piece 42 and the third connection piece 43 are respectively detachably connected to the bracket.

[0028] In this embodiment, the power member 2 is a power structure such as a motor that can drive an object to rotate or vibrate through an output shaft, and is powered by a power supply member 3, which is a battery. The power supply structure for the electric toothbrush can operate for a period of time without external power supply, and the positive and negative electrodes of the power member 2 are used to connect to the power supply to operate the power member 2. Since the power member 2 and the power supply member 3 are two block structures, a loop cannot be directly formed between the two for current to pass through. Therefore, an electrical connection component 4 is provided between the power member 2 and the power supply to form a current loop between the power member 2 and the power supply member 3, so that the power supply structure for the electric toothbrush operates. When the power supply structure for the electric toothbrush is working, the current is output from the positive end of the power supply member 3, flows into the power member 2 through the first connection member 41 connected to the positive electrode sheet, and then flows out from the negative electrode sheet of the power member 2, flows to the third connection member 43 connected to the second connection member 42 through the second connection member 42 connected to the negative electrode sheet, and the other end of the third connection member 43 is connected to the negative end of the power supply, and the current flows into the negative end of the battery to form a current loop. Since the power supply structure for electric toothbrushes is often in a humid environment, water vapor can easily enter the structure through the gaps. Even if a sealing structure is added, there will still be gaps that cannot completely isolate water vapor. The entry of water vapor can easily cause the electrical connection component 4 to rust. The first connector 41, the second connector 42, and the third connector 43 are all detachably connected by abutment or plug-in connection methods. Compared with the use of glue or spot welding and other connection methods, it is more convenient to disassemble and replace rusted connectors. In addition, the second connector 42 in contact with the power part 2 is the switch of the entire current loop. The second connector 42 is intermittently in contact and disconnection with the negative electrode of the power part 2 to realize the operation and shutdown of the power supply structure for the electric toothbrush. When the second connector 42 is worn out and causes poor contact during the continuous contact and disconnection process, the second connector 42 can be replaced through the detachable connection structure.

[0029] The technical solution of the utility model is to set a positive electrode sheet and a negative electrode sheet on the power piece 2, and set a positive terminal and a negative terminal on the power piece 3, so that the power piece 2 and the power piece 3 can be electrically connected, and to connect the power piece 3 and the power piece 2 by using an electrical connection assembly 4, so that a current loop is formed between the power piece 3 and the power piece 2, so that the power piece 3 drives the power piece 2 to work. The technical solution of the utility model is also to set a first connection piece 41 electrically connecting the positive electrode sheet of the power piece 2 and the positive electrode of the power piece 3, a second connection piece 42 electrically connecting the negative electrode sheet of the power piece 2 and the third connection piece 43, and a third connection piece 43 electrically connecting the second connection piece 42 and the negative electrode of the power piece 3 in the electrical connection assembly 4; the first connection piece 41, the second connection piece 42, and the third connection piece 43 are all detachably connected to the bracket 1, so that the electrical connection assembly 4 can be partially disassembled from the power supply structure for the electric toothbrush, and when any connection piece is rusted or has poor contact, only the damaged connection piece needs to be disassembled and replaced, without replacing the entire structure, thereby saving production costs.

[0030] In one embodiment, the bracket 1 includes a first installation cavity and a second installation cavity which are arranged at intervals, the power component 2 is arranged in the first installation cavity, the power supply component 3 is arranged in the second installation cavity, and the positive terminal of the power supply component 3 is arranged close to the power component 2; the positive electrode sheet and the negative electrode sheet are arranged on the outer peripheral wall of the power component 2. The positive electrode sheet and the negative electrode sheet are conductive metal sheets exposed and arranged on the outer peripheral wall. The outer shell of the power component 2 is usually coated with a corrosion-resistant coating to protect the normal operation of the internal electronic components. The coating is usually not conductive. The arrangement of the positive electrode sheet and the negative electrode sheet can provide a conductive connection point for the electrical connection component 4 to form a current loop.

[0031] In one embodiment, a connector groove 11 is provided between the first installation cavity and the second installation cavity, and the first connector 41 includes a first sheet 411 provided on the outer peripheral side of the power component 2 and a second sheet 412 provided on the connector groove 11. A side of the connector groove 11 close to the second installation cavity is provided with an avoidance hole, and the first sheet 411 is connected to the positive electrode sheet, and the second sheet 412 is against the positive terminal through the avoidance hole. The first sheet 411 and the second sheet 412 can be integrally formed or formed by bending to form the first connector 41, or they can be formed separately and then fixed together by welding. The junction between the first sheet 411 and the second sheet 412 is elastic to ensure that the power supply component 3 and the second sheet 412 can continue to abut under the action of elastic force to avoid disconnection.

[0032] In one embodiment, a limiting ring is provided on the first sheet 411, the positive electrode sheet is inserted in the limiting ring, and the second sheet 412 is provided with a contact protruding toward the power supply, and the contact abuts against the positive terminal of the power supply unit 3 through the avoidance hole. The limiting ring can be integrally formed with the first sheet 411, or fixed to the first sheet 411 by welding. The width of the limiting ring is slightly larger than the width of the positive electrode sheet. When the positive electrode sheet is inserted into the limiting ring, the limiting ring can limit the positive electrode sheet to prevent the positive electrode sheet from escaping from the limiting ring. At the same time, the positive electrode sheet can be connected to the first sheet 411 to ensure current transmission. The contact on the second sheet 412 is used to abut against the contact at the positive terminal to improve the stability of the contact.

[0033] In one embodiment, the second connector 42 is detachably mounted on the outer wall of the bracket, and the second connector 42 includes a pressing portion 422 and a fixing portion 421 connected to each other, one end of the pressing portion 422 is fixedly connected to the fixing portion 421, and the other end deviates from the side away from the power member 2 by a certain preset angle, the pressing portion 422 is elastic, and can abut against the negative electrode sheet of the power member 2 in a deformed state, and the fixing portion 421 is detachably connected to the bracket. The second connector 42 is arranged parallel to the outer shell of the power member 2 and the power supply member 3 to save space in the bracket 1, one end of the second connector 42 is arranged corresponding to the negative electrode sheet, so that the second connector 42 can contact the negative electrode sheet by pressing, and the second connector 42 is arranged away from the first connector 41 to avoid contact with the first connector 41 and cause a short circuit.

[0034] In one embodiment, the fixing portion 421 is provided with a plurality of limiting holes, and the bracket 1 is provided with limiting protrusions corresponding to the limiting holes one by one, and the limiting protrusions are penetrated into the limiting holes. The limiting holes are used to detachably connect the second connecting member 42 and the bracket 1, that is, to position the second connecting member 42, and to limit the relative rotation offset between the second connecting member 42 and the bracket 1.

[0035] In one embodiment, the bracket 1 is further provided with a fourth mounting cavity connected to the second mounting cavity, the third connecting member 43 is provided in the fourth mounting cavity, the third connecting member 43 comprises an abutting portion 431 provided along the side wall of the fourth mounting cavity and an elastic portion 432 provided at the bottom of the fourth mounting cavity, the abutting portion 431 abuts against the fixing portion 421, and the elastic portion 432 abuts against the negative terminal. The fourth mounting cavity where the third connecting member 43 is located is detachably provided on the bracket 1, and is used to be disassembled when replacing the battery so that the battery can be installed in the second mounting cavity. When the fourth mounting cavity is closed again, the third connecting member 43 can reconnect the battery to form a current path to operate the electric toothbrush.

[0036] In one embodiment, the elastic part 432 is provided with a third sheet 433 and an elastic member 434. The third sheet 433 is provided at the bottom of the fourth installation cavity and connected to the abutting part 431. One end of the elastic member 434 is connected to the third sheet 433, and the other end abuts against the negative pole of the power supply. In other embodiments, the elastic part 432 can be bent to form a deformable structure integrated with the third sheet 433, so as to replace the elastic member 434 to elastically deform and abut against the negative pole of the power supply 3. The deformable structure can be a spring sheet and a protruding structure that can be deformed by pressing, or a folded angle structure whose angle can be changed.

[0037] In one embodiment, the third sheet 433 is provided with a buckle, and the elastic member 434 is snapped into the buckle to be detachably connected to the third sheet 433. The elastic member 434 is a spring, and the buckle is used to snap a ring at the end of the spring into the buckle so that it does not fall out without external force, and the other end of the elastic member 434 is a free end, which is arranged to fit the negative terminal of the power supply.

[0038] The utility model also provides an electric toothbrush 200, see Figure 1-3 In one embodiment, the power supply structure 100 for an electric toothbrush includes a housing 20, a brush head 30, and any one of the above-mentioned power supply structures 100 for an electric toothbrush, wherein the power supply structure for an electric toothbrush is fixedly installed in the housing, and the power member 2 is drivingly connected to the brush head 30. The specific structure of the power supply structure 100 for an electric toothbrush refers to the above-mentioned embodiment. Since the electric toothbrush adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. In this embodiment, the power supply structure for an electric toothbrush is fixedly installed in the housing 20, and the brush head 30 is drivingly connected to the power member 2; a software is provided at the position of the pressing portion 422 on the side wall of the housing 20, and the software is used to apply pressure to the pressing portion 422 so that the pressing portion 422 abuts against the negative electrode sheet. In this embodiment, the soft body is made of elastic waterproof material such as silicone. In order to save the force required by the user to turn on the electric toothbrush by pressing the soft body, a convex point can be set between the soft body and the second connecting member 42. The convex point can be set integrally with the soft body or the second connecting member 42. The housing 20 of the electric toothbrush can be made of plastic material, which can protect the internal electronic components and reduce the weight of the toothbrush, making the electric toothbrush lighter. The brush head 30 is connected to the output shaft of the power member 2, and the power member 2 drives the brush head 30 to vibrate or rotate.

[0039] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A power supply structure for an electric toothbrush, characterized in that: include: Bracket; A power piece is installed in the bracket, and the power piece has a positive electrode sheet and a negative electrode sheet; A power supply component is installed in the bracket, and the power supply component has a positive terminal and a negative terminal; as well as An electrical connection component, the electrical connection component includes a first connection member, a second connection member and a third connection member, the first connection member electrically connects the positive electrode sheet and the positive terminal, the second connection member electrically connects the negative electrode sheet and the third connection member, the third connection member electrically connects the second connection member and the negative terminal, and the first connection member, the second connection member and the third connection member are respectively detachably connected to the bracket.

2. The power supply structure for an electric toothbrush according to claim 1, characterized in that: The bracket includes a first installation cavity and a second installation cavity which are spaced apart from each other. The power component is arranged in the first installation cavity, the power supply component is arranged in the second installation cavity, and the positive terminal of the power supply component is arranged close to the power component; the positive electrode sheet and the negative electrode sheet are arranged on the outer peripheral wall of the power component.

3. The power supply structure for an electric toothbrush according to claim 2, characterized in that: A connector groove is provided between the first mounting cavity and the second mounting cavity, the first connector includes a first sheet body provided on the outer peripheral side of the power member and a second sheet body provided in the connector groove, an avoidance hole is provided on a side of the connector groove close to the second mounting cavity, the first sheet body is connected to the positive electrode sheet, and the second sheet body is abutted against the positive terminal through the avoidance hole.

4. The power supply structure for an electric toothbrush according to claim 3, characterized in that: The first sheet body is provided with a limiting ring, the positive electrode sheet is inserted in the limiting ring, the second sheet body is provided with a contact protruding toward the power supply, and the contact abuts against the positive terminal of the power supply component through the avoidance hole.

5. The power supply structure for an electric toothbrush according to claim 2, characterized in that: The second connecting member is detachably mounted on the outer side wall of the bracket, and includes a pressing portion and a fixing portion that are connected to each other. One end of the pressing portion is fixedly connected to the fixing portion, and the other end deviates by a certain preset angle toward a side away from the power member. The pressing portion is elastic and can abut against the negative electrode sheet of the power member in a deformed state. The fixing portion is detachably connected to the bracket.

6. The power supply structure for an electric toothbrush according to claim 5, characterized in that: The fixing portion is provided with a plurality of limiting holes, and the bracket is provided with limiting protrusions corresponding to the limiting holes one by one, and the limiting protrusions are penetrated in the limiting holes.

7. The power supply structure for an electric toothbrush according to claim 5, characterized in that: The bracket is also provided with a fourth mounting cavity connected with the second mounting cavity, the third connecting member is provided in the fourth mounting cavity, the third connecting member includes an abutting portion provided along the side wall of the fourth mounting cavity and an elastic portion provided at the bottom of the fourth mounting cavity, the abutting portion abuts against the fixing portion, and the elastic portion abuts against the negative terminal.

8. The power supply structure for an electric toothbrush according to claim 7, characterized in that: The elastic part is provided with a third sheet and an elastic member, the third sheet is provided at the bottom of the fourth installation cavity and connected to the abutting part, one end of the elastic member is connected to the third sheet, and the other end abuts against the negative pole of the power supply.

9. The power supply structure for an electric toothbrush according to claim 8, characterized in that: The third sheet is provided with a buckle, and the elastic member is buckled into the buckle to be detachably connected with the third sheet.

10. An electric toothbrush, characterized in that: It comprises a shell, a brush head and a power supply structure for an electric toothbrush as claimed in any one of claims 1 to 9, wherein the power supply structure for an electric toothbrush is fixedly installed in the shell, and the power member is drivingly connected to the brush head.

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