Support structure of electric toothbrush and electric toothbrush

Abstract

The utility model provides an electric toothbrush support structure and an electric toothbrush, the electric toothbrush support structure comprises a motor support, the motor support is provided with a connecting conducting strip, one end of the connecting conducting strip is provided with a positive conducting strip, and the other end of the connecting conducting strip is provided with a machine body PCBA; and the connecting conducting strip is connected with the positive conducting strip through a convex point. The support structure of the electric toothbrush and the electric toothbrush are convenient and fast to use, the battery is convenient to replace, and no tool is needed beside a user. Only manual replacement is needed; the machine body lower cover is rotated by hands without any tool for detection, so that the time cost is saved; when the electric toothbrush is assembled, the electric toothbrush has the advantages of conforming to alignment, being simple and clear, and being convenient for the masses to understand; and meanwhile, a fool-proof design is adopted, so that mistaken installation can be prevented.

Description

Technical Field

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

[0002] Most of the electric toothbrushes on the market are charged to replenish energy for continued use. This brings certain limitations to the use scenarios, especially in places where it is inconvenient to charge for a long time. This electric toothbrush uses the method of replacing dry batteries to continue use, which can avoid the above inconvenience to a certain extent.

[0003] Patent CN215273513U discloses an electric toothbrush, including a shell and a movement; the movement includes a motor, a circuit board, and a bracket, and the motor is electrically connected to the circuit board; the first end of the bracket is provided with a first notch that engages with a protrusion on the rear cover of the motor, and the tail of the second end of the bracket is provided with a first buckle that engages with the shell; the circuit board is installed above the bracket, and guide parts are provided on both sides of the bracket; at least one second notch that engages with the movement is provided on the inner side of the shell. Utility Model Content

[0004] The purpose of the utility model is to provide an electric toothbrush support structure and an electric toothbrush, which is convenient and quick, and the battery can be easily replaced without any tools. It can be replaced manually; the lower cover of the body can be rotated by hand, and no tools are required for detection, saving time and cost; the assembly is simple, and the electric toothbrush of the present invention has the advantages of being aligned, simple and clear during assembly, and easy for the general public to understand; at the same time, it has a fool-proof design to prevent mis-assembly.

[0005] To achieve the above object, the utility model provides a bracket structure of an electric toothbrush, including a motor bracket, on which a connecting conductive sheet is provided, one end of which is provided with a positive conductive sheet, and the other end of which is provided with a body PCBA;

[0006] The connecting conductive sheet is connected to the positive conductive sheet via a convex point.

[0007] Preferably, a negative pole tower-shaped spring is embedded in the motor bracket, and the body PCBA is respectively connected to the negative pole tower-shaped spring and the connecting conductive sheet.

[0008] Preferably, a cylindrical inner cavity is provided on the motor bracket, and guide blocks and buckles are provided on both sides of the motor bracket in sequence.

[0009] Preferably, both ends of the body PCBA are respectively provided with snaps on the motor bracket, and one end of the motor bracket is provided with a fixing block.

[0010] Preferably, a dry battery is arranged in the inner cavity, a slot is arranged at one end of the dry battery, the negative pole tower-shaped spring is located in the slot, the negative pole tower-shaped spring is connected to one end of the dry battery, and the other end of the dry battery is connected to the positive conductive sheet.

[0011] Preferably, the fixed block is provided with a motor bracket shock-absorbing pad located on a side away from the motor bracket, the other side of the motor bracket shock-absorbing pad is sleeved on one end of the toothbrush inner shaft, a toothbrush inner shaft is provided with a toothbrush inner shaft waterproof ring, the toothbrush inner shaft waterproof ring is sleeved on one end of the toothbrush inner shaft, a hollow cup motor is provided in the toothbrush inner shaft, and the other end of the toothbrush inner shaft is provided with a toothbrush inner shaft waterproof cap and the outer side of the toothbrush inner shaft.

[0012] An electric toothbrush, comprising a support structure of the electric toothbrush, and also comprising a body lower cover, wherein a body and a toothbrush head are sequentially arranged on one side of the body lower cover, a second fixing groove is arranged on the body lower cover, a notch is arranged on the second fixing groove, a slope is arranged in the second fixing groove, the height of the slope is less than the depth of the second fixing groove, and the slope is arranged at a certain distance from the edge of the second fixing groove, and a plurality of second fixing grooves can be arranged on the body lower cover;

[0013] The fuselage body is provided with a U-shaped groove, and the U-shaped groove can be provided in a plurality of parallel connections, or in a single arrangement, and a plurality of U-shaped grooves are provided in a plurality on the fuselage body;

[0014] The U-shaped groove is located at the space formed by the slope and the second fixing groove.

[0015] Preferably, a first alignment symbol is arranged on the lower cover of the fuselage, a second alignment symbol is arranged on the fuselage body on the opposite side of the first alignment symbol, and a third alignment symbol is arranged on the fuselage body on one side of the second alignment symbol.

[0016] Preferably, a guide rail is provided on the inner side of the fuselage body and is connected to a guide block provided on the motor bracket, and the motor bracket is located in the fuselage body.

[0017] Preferably, the toothbrush head is provided with a cavity, the toothbrush inner shaft and the toothbrush inner shaft waterproof cap are located in the toothbrush head, and a first fixing groove is provided at the connecting end of the body and the toothbrush head, and the first fixing groove is connected to one end of the toothbrush inner shaft.

[0018] Therefore, the utility model adopts the above-mentioned bracket structure of an electric toothbrush and an electric toothbrush, and the technical effects are as follows:

[0019] (1) The dry cell is suspended and fixed in the corresponding position in the bracket cavity by the negative pole tower spring and the positive pole conductive sheet, and conducts. The negative pole tower spring is fixed in the bracket, and the bracket is fixed in the body of the machine; the positive pole conductive sheet is fixed in the lower cover of the machine by hot pressing; the lower cover of the machine is fixed to the body of the machine by counterclockwise screwing. To disassemble, just rotate it clockwise.

[0020] (2) When the battery of the electric toothbrush runs out, you can remove it by simply rotating the lower cover of the body counterclockwise to a certain angle. You can manually replace the battery and screw the lower cover of the body back into place before you can use it. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of an electric toothbrush with quick replacement of dry batteries according to the utility model;

[0022] Figure 2 is a schematic diagram of a first alignment symbol, a second alignment symbol, and a third alignment symbol;

[0023] Figure 3 It is a partial schematic diagram of the motor bracket;

[0024] Figure 4 This is a schematic diagram of the lower cover of the fuselage;

[0025] Figure 5 It is a schematic diagram of the inner shaft of the toothbrush;

[0026] Figure 6 It is a schematic diagram of both sides of the inner wall of the fuselage body;

[0027] Figure 7 It is a half-section view of an electric toothbrush;

[0028] Figure 8 It is a partial schematic diagram of the card slot.

[0029] Reference numerals

[0030] 1. Body; 101. Guide rail; 102. First groove; 103. First fixing groove; 104. U-shaped groove; 2. Toothbrush head; 3. Bottom cover; 301. Second fixing groove; 302. Slope; 4. Motor bracket;

[0031] 401, connecting conductive sheet; 402, positive conductive sheet; 403, fuselage PCBA; 404, first conductive connection hole; 405, connecting sheet; 406, second conductive connection hole; 407, first through hole; 408, negative pole tower spring; 409, extended conductive wire;

[0032] 410, dry cell; 411, slot; 412, boss; 413, guide block; 414, buckle; 415, snap buckle; 416, fixing plate; 417, fixing block; 418, second through hole; 419, cylinder; 420, rib plate; 421, third groove; 422, fourth groove; 423, O-ring;

[0033] 5. Button; 6. Motor bracket shockproof pad; 7. Toothbrush inner shaft waterproof ring; 8. Toothbrush inner shaft; 9. Hollow cup motor; 10. Toothbrush inner shaft waterproof cap; 11. Second groove; 12. First alignment symbol; 13. Second alignment symbol; 14. Third alignment symbol. DETAILED DESCRIPTION

[0034] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0035] Unless otherwise defined, technical or scientific terms used in the present invention should have the common meanings understood by persons having ordinary skills in the field to which the present invention belongs.

[0036] Embodiment 1

[0037] like Figure 1 and Figure 7 The utility model provides an electric toothbrush support structure and an electric toothbrush, which specifically include a body 1, a toothbrush head 2 and a body bottom cover 3. The electric toothbrush support structure is located inside the body 1 and the toothbrush head 2.

[0038] like Figure 3 As shown, a bracket structure of an electric toothbrush includes a motor bracket 4, on which a connecting conductive sheet 401 is provided, one end of the connecting conductive sheet 401 is provided with a positive conductive sheet 402, and the other end of the connecting conductive sheet 401 is provided with a body PCBA 403; the connecting conductive sheet 401 and the positive conductive sheet 402 are connected via contacts.

[0039] In addition, a plurality of protrusions are provided on the side of the motor bracket 4 that contacts the connecting conductive sheet 401 , and openings corresponding to the protrusions are provided on the connecting conductive sheet 401 , so that the connecting conductive sheet 401 is fixed on the motor bracket 4 .

[0040] The positive electrode conductive sheet 402 is also provided with an opening corresponding to the protrusion, and the positive electrode conductive sheet 402 is fixed to the motor bracket 4 through the protrusion.

[0041] A first conductive connection hole 404 is provided on one end of the positive conductive sheet 402 connected to the connecting conductive sheet 401, and a connecting sheet 405 is provided on the connecting conductive sheet 401. The connecting sheet 405 is arranged in the first conductive connection hole 404, so that the connecting conductive sheet 401 and the positive conductive sheet 402 are connected to form a conductive path.

[0042] A second conductive connection hole 406 is further disposed on one side of the first conductive connection hole 404 , and a first through hole 407 is disposed on the motor bracket 4 directly below the second conductive connection hole 406 .

[0043] A negative pole tower-shaped spring 408 is embedded in the motor bracket 4 , and an extended conductive wire 409 is disposed at one end of the negative pole tower-shaped spring 408 . The extended conductive wire 409 passes through the first through hole 407 and is connected to the body PCBA 403 .

[0044] The positive electrode conductive sheet 402 is fixed on the lower cover 3 of the body by heat pressing, and the positive electrode conductive sheet 402 and the lower cover 3 of the body are pressed together into a whole.

[0045] In addition, a hook is provided on the positive electrode conductor 402 , and a corresponding fourth groove 422 is provided on the lower cover 3 of the fuselage, and the hook is fixed at the fourth groove 422 .

[0046] A dry cell 410 is disposed at the other end of the negative pole tower spring 408, and the other end of the dry cell 410 is connected to the positive pole conductive sheet 402, and a certain pre-pressure is provided, so that the dry cell 410 and the positive pole conductive sheet 402 are always in contact, so that the circuit is turned on. Thus, a complete conductive path is formed between the dry cell 410, the negative pole tower spring 408, the body PCBA 403, the connecting conductive sheet 401, and the positive pole conductive sheet 402.

[0047] like Figure 8 As shown, a slot 411 is provided on the motor bracket 4 , and a boss 412 is provided at one end of the slot 411 to fix the negative pole tower spring 408 embedded in the motor bracket 4 .

[0048] The motor bracket 4 is provided with a cylindrical inner cavity, and the dry battery 410 is located in the inner cavity. The inner cavity formed by the motor bracket 4 is a non-closed structure, which can not only ensure the heat dissipation of the dry battery 410 during operation, but also reduce the weight of the entire toothbrush by reducing the use of materials, and at the same time, facilitate the replacement of the dry battery 410.

[0049] Guide blocks 413 are sequentially arranged on both sides of the motor bracket 4, and guide rails 101 are arranged on both sides of the fuselage body 1. During the disassembly process of the motor bracket 4, the motor bracket 4 can be accurately sent into the fuselage body 1 through the guide blocks 413, thereby preventing circuit breakage and insensitive buttons caused by inaccurate positioning, thereby improving user experience. In addition, the guide blocks 413 also have the function of firmly fixing the motor bracket 4 in the fuselage body 1.

[0050] A buckle 414 is provided at one end of the motor bracket 4, and a first groove 102 is provided at the position where the fuselage body 1 is connected to the buckle 414. During installation, the matching degree between the buckle 414 and the first groove 102 can be judged by hand feeling, thereby judging the accuracy of the installation position. The double setting of the buckle 414 and the guide rail 101 ensures the accuracy and convenience during the disassembly and installation process, as well as the stability of the motor bracket 4 in the fuselage body 1. The buckle 414 of the motor bracket 4 and the fuselage body 1 are assembled into a whole through a mechanical clamping design, providing assembly support and playing a role in mechanical connection. At the same time, the buckle 414 has a certain elastic space, which is convenient for mechanical disassembly.

[0051] Spring buckles 415 are respectively provided on the motor bracket 4 at both ends of the body PCBA403 to fix the body PCBA403 on the spring buckles 415. Fixed plates 416 are provided on both sides of the body PCBA403 on the motor bracket 4 to prevent the body PCBA403 from sliding to both sides. At the same time, it is also convenient to take and put the body PCBA403 when troubleshooting the internal circuit fault.

[0052] An opening is provided on the body 1 , and a button 5 is provided in the opening and connected to the body PCBA 403 , and the switch of the electric toothbrush is controlled by the button 5 .

[0053] A fixing block 417 is provided at one end of the motor bracket 4. Since the overall structural design of the motor bracket 4 cannot fill the entire fuselage body 1, it is necessary to set the size of the fixing block 417 to match the inner diameter size of the fuselage body 1 to further ensure the stability of the motor bracket 4 in the fuselage body 1.

[0054] A second through hole 418 is provided at the center of the fixing block 417, a cylinder 419 protrudes from the second through hole 418, a notch is provided on the cylinder 419, ribs 420 are provided on both sides of the second through hole 418 on the fixing block 417, and a third groove 421 is provided in the middle of one of the ribs 420. In addition, the connection line of the hollow cup motor 9 can pass through the second through hole 418, the notch, and the third groove 421 to be connected to the fuselage PCBA403, so as to realize the power supply to the hollow cup motor 9.

[0055] like Figure 6 As shown, a motor bracket anti-vibration pad 6 is sleeved on the fixing block 417 and is located on a side away from the motor bracket 4, so as to reduce the vibration sense brought to the body 1 by the hollow cup motor 9 and improve the customer experience.

[0056] The motor bracket anti-vibration pad 6 is provided with a second groove 11 matching the rib 420 and the cylinder 419, so that accurate installation can be achieved during installation.

[0057] like Figure 5As shown, the other side of the motor bracket shock-absorbing pad 6 is sleeved in one end of the toothbrush inner shaft 8, and a toothbrush inner shaft waterproof ring 7 is provided on the toothbrush inner shaft 8. The toothbrush inner shaft waterproof ring 7 is sleeved on one end of the toothbrush inner shaft, and a first fixing groove 103 is provided at the connecting end of the body 1 and the toothbrush head 2. The toothbrush inner shaft waterproof ring 7 is fixed at the first fixing groove 103, so that the toothbrush head 2 and the body 1 are firmly connected.

[0058] The contact surface between the motor bracket anti-vibration pad 6 and the toothbrush inner 8 is set to be uneven to increase friction and prevent the internal parts of the electric toothbrush from sliding during use. At the same time, the surface of the toothbrush inner shaft waterproof ring 7 is also set to be uneven to increase the friction with the body 1 and increase the stability of the connection.

[0059] The toothbrush head 2 is provided with a cavity, and a hollow cup motor 9 is provided in the toothbrush inner shaft 8, which is placed in the front section of the toothbrush inner shaft 8, close to the bristle part, to provide a vibration effect when brushing teeth. An anti-skid pad is provided at the contact surface between the toothbrush head 2 and the hollow cup motor 9 to prevent the hollow cup motor 9 from moving.

[0060] The other end of the toothbrush inner shaft 8 is provided with a toothbrush inner shaft waterproof cap 10 on the outside of the toothbrush inner shaft 8. The toothbrush inner shaft 8 and the toothbrush inner shaft waterproof cap 10 are located in the toothbrush head 2. The toothbrush inner shaft waterproof cap 10 has a partial interference contact with the toothbrush head 2. The position of the toothbrush inner shaft waterproof cap 10 is close to the working end. When the hollow cup motor 9 rotates eccentrically, it can bring a vibration effect. This vibration is transmitted downward to the body 1 through the toothbrush inner shaft 8 on the one hand, and on the other hand, it is transmitted to the toothbrush head 2 through the toothbrush inner shaft waterproof cap 10. Thereby, the vibration effect required for brushing teeth can be brought; the toothbrush inner shaft waterproof cap 10 is made of soft silicone material, and is in tight interference contact with the toothbrush head 2. When the hollow cup motor 9 vibrates, it has a very good shock absorption effect. Therefore, it can bring a better vibration effect to brushing teeth, and at the same time, it can also play a shock absorption effect, thereby bringing a good experience to users.

[0061] like Figure 4 and Figure 6 As shown, the body 1 and the toothbrush head 2 are arranged on one side of the lower cover 3 of the body, and a fool-proof design is arranged at the lower cover 3 of the body:

[0062] like Figure 2 As shown, a first alignment symbol 12 is provided on the fuselage lower cover 3, a second alignment symbol 13 is provided on the fuselage body 1 on the opposite side of the first alignment symbol 12, and a third alignment symbol 14 is provided on the fuselage body 1 on one side of the second alignment symbol 13. In this embodiment, the first alignment symbol 12 and the second alignment symbol 13 are set as triangle symbols, and the third alignment symbol 14 is set as a lock symbol. The first alignment symbol 12, the second alignment symbol 13 and the third alignment symbol 14 can also be set as other shapes.

[0063] The fuselage body 1 is provided with a second fixing groove 301, a notch is provided on the second fixing groove 301, a slope 302 is provided in the second fixing groove 301, the height of the slope 302 is less than the depth of the second fixing groove 301, and the slope 302 is provided at a certain distance from the edge of the second fixing groove 301. Multiple second fixing grooves 301 can be provided on the fuselage lower cover 3, and two second fixing grooves 301 are provided in this embodiment.

[0064] The fuselage body 1 is provided with a U-shaped groove 104, which can be provided in multiple parallel connections, or in a single arrangement, with multiple U-shaped grooves 104 provided in multiple arrangements on the fuselage body 1. In this embodiment, a single U-shaped groove 104 is provided on the fuselage body 1, and a U-shaped groove 104 connected in parallel is also provided.

[0065] The U-shaped groove 104 is located in the space formed by the slope 302 and the second fixing groove 301 .

[0066] When installing the lower cover 3, the U-shaped groove 104 first enters the second fixing groove 301 from the notch of the second fixing groove 301. At this time, the pair of triangle symbols of the body 1 and the lower cover 3 are aligned, and then the clamp is rotated clockwise and gently rotated to a certain angle, and the U-shaped groove 104 slides over the slope 302 and enters the space formed by the slope 302 and the second fixing groove 301. At this time, the triangle symbol of the lower cover 3 touches the lock symbol of the body 1, and the assembly is completed.

[0067] Operation of replacing dry battery: first remove the positive conductive sheet, O-ring 423 and lower cover 3 of the fuselage. At this time, just turn the positive conductive sheet 402, O-ring 423 and lower cover 3 of the fuselage counterclockwise until the two triangle symbols are aligned and they can be removed; take out the dry battery 410 from the motor bracket 4 and replace it with a new dry battery 410; assemble the positive conductive sheet 402, O-ring 423 and lower cover 3 of the fuselage into place again.

[0068] The toothbrush head 2 can be assembled and disassembled at any time when replacement is required.

[0069] Therefore, the utility model adopts the above-mentioned electric toothbrush bracket structure and electric toothbrush, and the battery replacement is convenient, and no tools are required. It can be replaced manually; the lower cover of the body can be rotated by hand, and no tools are required for detection, saving time and cost; the assembly is simple, and the electric toothbrush of the present invention has the advantages of being in line with the position, simple and clear, and easy for the general public to understand during assembly; at the same time, it has a fool-proof design to prevent mis-assembly.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A bracket structure of an electric toothbrush, characterized in that: It includes a motor bracket, on which a connecting conductive sheet is arranged, one end of the connecting conductive sheet is arranged with a positive conductive sheet, and the other end of the connecting conductive sheet is arranged with a body PCBA; The connecting conductive sheet is connected to the positive conductive sheet via a convex point.

2. The bracket structure of an electric toothbrush according to claim 1, characterized in that: The motor bracket is embedded with a negative pole tower-shaped spring, and the body PCBA is respectively connected to the negative pole tower-shaped spring and the connecting conductive sheet.

3. The support structure of an electric toothbrush according to claim 1, characterized in that: The motor bracket is provided with a cylindrical inner cavity, and guide blocks and buckles are sequentially provided on both sides of the motor bracket.

4. The support structure of an electric toothbrush according to claim 1, characterized in that: Both ends of the body PCBA are respectively provided with snap buckles on the motor bracket, and one end of the motor bracket is provided with a fixing block.

5. The support structure of an electric toothbrush according to claim 2 or 3, characterized in that: A dry cell is arranged in the inner cavity, a slot is arranged at one end of the dry cell, the negative pole tower-shaped spring is located in the slot, the negative pole tower-shaped spring is connected to one end of the dry cell, and the other end of the dry cell is connected to the positive pole conductive sheet.

6. The support structure of an electric toothbrush according to claim 4, characterized in that: The fixing block is sleeved with a motor bracket shock-absorbing pad located on a side away from the motor bracket, and the other side of the motor bracket shock-absorbing pad is sleeved in one end of the toothbrush inner shaft, a toothbrush inner shaft is provided with a toothbrush inner shaft waterproof ring, and the toothbrush inner shaft waterproof ring is sleeved on one end of the toothbrush inner shaft, a hollow cup motor is provided in the toothbrush inner shaft, and the other end of the toothbrush inner shaft is provided with a toothbrush inner shaft waterproof cap and the outer side of the toothbrush inner shaft.

7. An electric toothbrush, characterized in that: A support structure of an electric toothbrush comprising any one of claims 1 to 6, further comprising a body lower cover, a body body and a toothbrush head being arranged in sequence on one side of the body lower cover, a second fixing groove being arranged on the body lower cover, a notch being arranged on the second fixing groove, a slope being arranged in the second fixing groove, a height of the slope being less than a depth of the second fixing groove, a certain distance being arranged between the slope and an edge of the second fixing groove, and a plurality of second fixing grooves can be arranged on the body lower cover; The fuselage body is provided with a U-shaped groove, and the U-shaped groove can be provided in a plurality of parallel connections, or in a single arrangement, and a plurality of U-shaped grooves are provided in a plurality on the fuselage body; The U-shaped groove is located at the space formed by the slope and the second fixing groove.

8. An electric toothbrush according to claim 7, characterized in that: A first alignment symbol is arranged on the lower cover of the fuselage, a second alignment symbol is arranged on the fuselage body on the opposite side of the first alignment symbol, and a third alignment symbol is arranged on the fuselage body on one side of the second alignment symbol.

9. An electric toothbrush according to claim 7, characterized in that: A guide rail is arranged on the inner side of the fuselage body and is connected with a guide block arranged on a motor bracket, and the motor bracket is located in the fuselage body.

10. An electric toothbrush according to claim 7, characterized in that: The toothbrush head is provided with a cavity, the toothbrush inner shaft and the toothbrush inner shaft waterproof cap are located in the toothbrush head, and the connecting end of the body and the toothbrush head is provided with a first fixing groove, and the first fixing groove is connected to one end of the toothbrush inner shaft.

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