CN219534353U

CN219534353U - A button structure and electric toothbrush for electric toothbrush

Info

Publication number: CN219534353U
Application number: CN202320538021.3U
Authority: CN
Inventors: 陈连成; 刘书润
Original assignee: Shenzhen Yunding Information Technology Co Ltd
Current assignee: Shenzhen Yunding Information Technology Co Ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-08-15
Anticipated expiration: 2033-03-20

Abstract

The utility model relates to the technical field of electric toothbrushes, and discloses a key structure for an electric toothbrush and the electric toothbrush. Wherein the button structure for the electric toothbrush includes a housing, buttons and a circuit board. The shell is provided with a first mounting hole; the key is slidably arranged in the first mounting hole, and a first magnet is arranged on the key; the circuit board is provided with a second magnet, the first magnet and the second magnet are arranged opposite to each other, and the polarities of the opposite end surfaces of the first magnet and the second magnet are the same, so that the key is suspended above the second magnet; and a magnetic field sensor is also arranged on the circuit board. According to the utility model, a button is not required to be arranged on the circuit board, the suspension pressing of the button is realized, and the pressing hand feeling of a user is improved.

Description

A button structure and electric toothbrush for electric toothbrush

Technical Field

The utility model relates to the technical field of electric toothbrushes, in particular to a key structure for an electric toothbrush and the electric toothbrush.

Background

At present, the electric toothbrush is generally switched in working state through physical keys, the physical keys are generally adhered to soft rubber of a handle through glue, and when the physical keys are pressed, the physical keys are in hard contact with buttons on a circuit board to realize the on-off of the electric toothbrush. However, after the button on the circuit board is pressed by the physical key for a plurality of times for a long time, fatigue loss is easy to generate, the service life of the electric toothbrush is reduced, and the hand feeling is poor when the physical key is pressed.

In view of the foregoing, there is a need for a key structure for an electric toothbrush and an electric toothbrush to solve the above-mentioned problems.

Disclosure of Invention

Based on the above, the utility model aims to provide a key structure for an electric toothbrush and the electric toothbrush, which do not need to arrange buttons on a circuit board, realize suspension pressing of keys and improve pressing handfeel of a user.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in one aspect, there is provided a key structure for an electric toothbrush, comprising:

a housing provided with a first mounting hole;

the key is slidably arranged in the first mounting hole, and a first magnet is arranged on the key;

the circuit board is provided with a second magnet, the first magnet and the second magnet are arranged opposite to each other, and the polarities of the opposite end surfaces of the first magnet and the second magnet are the same, so that the key is suspended above the second magnet;

and a magnetic field sensor is also arranged on the circuit board.

As a preferable technical scheme of the key structure for the electric toothbrush, the side wall of the key is provided with a first annular flange, and one side, away from the circuit board, of the first annular flange can be abutted against the inner wall of the shell.

As a preferable technical scheme of the key structure for the electric toothbrush, the electric toothbrush further comprises key silica gel, wherein the key silica gel is arranged between the keys and the circuit board.

As a preferable technical scheme of the key structure for the electric toothbrush, the electric toothbrush further comprises a frame body, wherein the frame body is arranged inside the shell, and the circuit board and the key silica gel are both arranged on the frame body.

As a preferable technical scheme of the key structure for the electric toothbrush, a second mounting hole is formed in the frame body, the second mounting hole is a stepped hole, and a plurality of tooth grooves are formed in the inner wall of the small-diameter section of the second mounting hole in a surrounding mode;

the side wall of button silica gel is provided with second annular flange and a plurality of profile of tooth boss, the profile of tooth boss is located the second annular flange is close to circuit board one side, the profile of tooth boss with tooth groove one-to-one, the second annular flange overlap joint in the step face of second mounting hole, just the profile of tooth boss inlays to be located in the tooth groove.

As a preferable technical scheme of the key structure for the electric toothbrush, a mounting groove is formed in one side, facing the circuit board, of the key, and the first magnet is embedded in the mounting groove.

As a preferable embodiment of the key structure for the electric toothbrush, the first magnet is bonded to the mounting groove.

As a preferable technical scheme of the key structure for the electric toothbrush, the first magnet and the second magnet are annular.

As a preferred embodiment of the key structure for the electric toothbrush, the second magnet is bonded or welded to the circuit board.

In another aspect, there is provided an electric toothbrush comprising the key structure for an electric toothbrush according to any one of the above aspects.

The beneficial effects of the utility model are as follows:

the utility model provides a key structure for an electric toothbrush and the electric toothbrush. When the key is pressed, the key overcomes the magnetic force between the first magnet and the second magnet, so that the key moves towards the direction close to the circuit board relative to the shell, and the magnetic field sensor detects the magnetic field intensity change near the first magnet and the second magnet at the moment, so as to control the switching of the working state of the electric toothbrush, for example, control the starting and the shutdown of the electric toothbrush; when the force for pressing the key is removed, the key moves away from the circuit board relative to the shell under the drive of magnetic force, so that reset is realized. According to the utility model, a button is not required to be arranged on the circuit board, the suspension pressing of the button is realized, and the pressing hand feeling of a user is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of a key structure for an electric toothbrush according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a key structure for an electric toothbrush according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a key structure for an electric toothbrush according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a key structure according to an embodiment of the present utility model;

fig. 5 is an enlarged view of fig. 2 at a.

The figures are labeled as follows:

1. a housing; 11. a first mounting hole;

2. a key; 21. a first annular flange; 22. a mounting groove;

3. a first magnet; 4. a circuit board; 5. a second magnet;

6. key silica gel; 61. a second annular flange; 62. tooth-shaped bosses;

7. a frame; 71. a second mounting hole; 72. tooth slots.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

As shown in fig. 1 to 3, the present embodiment provides a key structure for an electric toothbrush, which includes a housing 1, keys 2, and a circuit board 4. Specifically, the housing 1 is provided with a first mounting hole 11; the key 2 is slidably mounted in the first mounting hole 11, and the first magnet 3 is arranged on the key 2; the circuit board 4 is provided with a second magnet 5, the first magnet 3 and the second magnet 5 are arranged opposite to each other, and the polarities of the opposite end surfaces of the first magnet 3 and the second magnet 5 are the same, so that the key 2 is suspended above the second magnet 5; a magnetic field sensor (not shown in the drawings) is also provided on the circuit board 4. In this embodiment, the magnetic field sensor may be a hall sensor.

The opposite end faces of the first magnet 3 and the second magnet 5 have the same polarity, and the second magnet 5 applies magnetic force to the first magnet 3 according to the principle that the magnets repel each other, so that the key 2 is suspended above the second magnet 5. When the key 2 is pressed, the key 2 overcomes the magnetic force between the first magnet 3 and the second magnet 5, so that the key 2 moves towards the direction close to the circuit board 4 relative to the shell 1, and the magnetic field sensor detects the magnetic field change near the first magnet 3 and the second magnet 5, so as to control the switching of the working state of the electric toothbrush, for example, control the starting and the shutdown of the electric toothbrush; when the force for pressing the key 2 is removed, the key 2 moves away from the circuit board 4 relative to the housing 1 under the drive of magnetic force, so that reset is realized. In the embodiment, a button is not required to be arranged on the circuit board 4, the suspension pressing of the key 2 is realized, and the pressing hand feeling of a user is improved. It should be noted that, the magnetic field sensor detects the magnetic field intensity variation near the first magnet 3 and the second magnet 5 and sends the instruction as the prior art, and the description thereof is omitted here.

In this embodiment, as shown in fig. 3 and 4, the side of the key 2 facing the circuit board 4 is provided with a mounting groove 22, and the first magnet 3 is embedded in the mounting groove 22, so that the first magnet 3 is mounted on the key 2. Preferably, the first magnet 3 is bonded to the mounting groove 22, further improving the mounting stability of the first magnet 3.

In this embodiment, the second magnet 5 is bonded or soldered to the circuit board 4, so that the second magnet 5 is mounted on the circuit board 4.

Further, the side wall of the key 2 is provided with a first annular flange 21, one side of the first annular flange 21 away from the circuit board 4 can be abutted against the inner wall of the shell 1, when the second magnet 5 applies magnetic force to the first magnet 3, and the key 2 is suspended above the second magnet 5, the first annular flange 21 is abutted against the inner wall of the shell 1, so that the key 2 is prevented from continuously moving in a direction away from the circuit board 4, and further the key 2 is prevented from being separated from the shell 1, and the limiting effect is achieved.

Preferably, as shown in fig. 2, 3 and 5, the key structure for the electric toothbrush further comprises a key silica gel 6, wherein the key silica gel 6 is arranged between the key 2 and the circuit board 4, and when the suspended key 2 is manually pressed, on one hand, the key silica gel 6 can prevent the pressing distance of the key 2 from being too large, so that the key 2 is separated from the shell 1, and plays a limiting role; on the other hand, the first magnet 3 and the second magnet 5 are prevented from being in hard contact, the loss of the first magnet 3 and the second magnet 5 is reduced, and the hand feeling of the user is improved.

Further, the key structure for the electric toothbrush further comprises a frame body 7, the frame body 7 is arranged inside the shell body 1, the circuit board 4 and the key silica gel 6 are both arranged on the frame body 7, and the frame body 7 plays a role in supporting the internal structure of the electric toothbrush. The circuit board 4 can be clamped, glued or screwed to the frame 7.

In this embodiment, the frame body 7 is provided with a second mounting hole 71, the second mounting hole 71 is a stepped hole, and a plurality of tooth grooves 72 are formed on the inner wall of the small-diameter section of the second mounting hole 71 in a ring manner; the lateral wall of button silica gel 6 is provided with second annular flange 61 and a plurality of profile of tooth boss 62, profile of tooth boss 62 is located second annular flange 61 and is close to circuit board 4 one side, profile of tooth boss 62 and tooth groove 72 one-to-one, and during the equipment of button silica gel 6, second annular flange 61 overlap joint is in the step face of second mounting hole 71, and profile of tooth boss 62 inlays and locate in the tooth groove 72, has realized that button silica gel 6 installs on framework 7, and tooth groove 72 plays spacing effect to profile of tooth boss 62, can restrict button silica gel 6 relative frame 7 rotation, improves button silica gel 6's installation steadiness.

In this embodiment, the first magnet 3 and the second magnet 5 are both annular, and the magnetic force between the first magnet 3 and the second magnet 5 is stable, so that the key 2 is kept stable during movement.

Example two

As shown in fig. 1, this embodiment also provides an electric toothbrush, including the above-mentioned key structure for an electric toothbrush, and because the key structure for an electric toothbrush includes the above-mentioned key structure, the electric toothbrush has the advantages of any one of the first embodiments, realizes the floating pressing of the key 2, and improves the pressing hand feel of the user. The electric toothbrush further comprises a motor, a rechargeable battery and a wireless charging coil, wherein the battery is electrically connected to the motor and the wireless charging coil, and can supply power to the motor so that the motor drives the brush head of the electric toothbrush to work, and the battery can be charged through the wireless charging coil.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. A key structure for an electric toothbrush, comprising:

a housing (1), the housing (1) being provided with a first mounting hole (11);

the key (2) is slidably arranged in the first mounting hole (11), and a first magnet (3) is arranged on the key (2);

the circuit board (4), the circuit board (4) is provided with a second magnet (5), the first magnet (3) and the second magnet (5) are arranged opposite to each other, and the polarities of the opposite end surfaces of the first magnet (3) and the second magnet (5) are the same, so that the key (2) is suspended above the second magnet (5);

the circuit board (4) is also provided with a magnetic field sensor.

2. The key structure for an electric toothbrush according to claim 1, characterized in that the side wall of the key (2) is provided with a first annular flange (21), and the side of the first annular flange (21) away from the circuit board (4) can be abutted against the inner wall of the housing (1).

3. The key structure for an electric toothbrush according to claim 1, further comprising a key silica gel (6), the key silica gel (6) being disposed between the key (2) and the circuit board (4).

4. A key structure for an electric toothbrush according to claim 3, further comprising a frame (7), the frame (7) being disposed inside the housing (1), the circuit board (4) and the key silica gel (6) being mounted on the frame (7).

5. The button structure for the electric toothbrush according to claim 4, characterized in that a second mounting hole (71) is arranged on the frame body (7), the second mounting hole (71) is a stepped hole, and a plurality of tooth grooves (72) are formed on the inner wall of the small-diameter section of the second mounting hole (71) in a ring manner;

the side wall of button silica gel (6) is provided with second annular flange (61) and a plurality of profile of tooth boss (62), profile of tooth boss (62) are located second annular flange (61) are close to circuit board (4) one side, profile of tooth boss (62) with tooth groove (72) one-to-one, second annular flange (61) overlap joint in the step face of second mounting hole (71), just profile of tooth boss (62) are inlayed and are located in tooth groove (72).

6. The key structure for an electric toothbrush according to claim 1, wherein a mounting groove (22) is provided on a side of the key (2) facing the circuit board (4), and the first magnet (3) is embedded in the mounting groove (22).

7. The key structure for an electric toothbrush according to claim 6, wherein the first magnet (3) is bonded to the mounting groove (22).

8. A key structure for an electric toothbrush according to any one of claims 1-7, characterized in that the first magnet (3) and the second magnet (5) are both ring-shaped.

9. A key structure for an electric toothbrush according to any one of claims 1-7, characterized in that the second magnet (5) is glued or soldered to the circuit board (4).

10. An electric toothbrush comprising a key structure for an electric toothbrush according to any one of claims 1 to 9.