Electric toothbrush

Abstract

The utility model discloses an electric toothbrush which aims to solve the technical problem that a battery of an electric toothbrush in the prior art is not easy to detach, the electric toothbrush comprises a replaceable brush head, a shell and a battery assembly, the replaceable brush head can be detachably connected in the shell, a fixing part is arranged between the shell and the battery assembly, and the battery assembly is connected with the replaceable brush head. The battery assembly is assembled and fixed in the shell through the fixing part to supply power to each part of the shell, and the battery assembly can be detached from the shell, so that the battery assembly can be conveniently replaced by a new battery assembly or garbage classification can be performed, and the environmental pollution is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of electric toothbrushes, in particular to an electric toothbrush. Background Art

[0002] Currently, most electric toothbrushes on the market use built-in batteries, without considering the battery disposal issue after consumers discard the entire electric toothbrush product. The batteries in electric toothbrushes generally need to be removed by removing screws or prying buckles, and then breaking the connecting wires. This is inconvenient to remove, and consumers who are unable to remove the batteries may hurt themselves, or they may choose to give up removing the batteries because it is time-consuming and laborious, resulting in problems such as batteries in discarded electric toothbrushes polluting the environment. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an electric toothbrush, aiming to solve the technical problem that the battery of the electric toothbrush in the prior art is difficult to remove inside the electric toothbrush.

[0005] (2) Technical solution

[0006] An electric toothbrush comprises a replaceable brush head, a shell and a battery assembly. The replaceable brush head can be detachably connected to the shell. A fixing part is provided between the shell and the battery assembly, and the battery assembly is assembled and fixed in the shell through the fixing part.

[0007] Furthermore, the battery assembly includes a first supporting part, a battery, a second supporting part, a third supporting part, an electrical connection part and a waterproof part. The interior of the shell includes an upper shell area and a lower shell area. The interior of the lower shell area is provided with an assembly supporting part for installing the battery assembly, and the fixing part is a magnet.

[0008] Furthermore, the fixing portion is an elastic hook arranged on the component support portion, and a slot adapted to the hook is provided on the outer side of the first support portion.

[0009] Furthermore, a connecting wall is provided at the lower end of the first supporting part, and a connecting column is provided at the upper end of the second supporting part.

[0010] Furthermore, an annular protrusion is provided on the upper end of the second supporting part, a first sealing groove is provided on the lower end surface of the connecting wall, a first waterproof component is provided on the first sealing groove, a cover groove is provided on the third supporting part, and a detachable dust cover is provided on the cover groove.

[0011] Furthermore, a second sealing groove is provided on one side of the cover groove, an annular avoidance groove is provided on the side wall of the second sealing groove, a deformable second waterproof component is provided on the second sealing groove, a third sealing groove is provided on the outer side of the third support part, and a third waterproof component is provided on the third sealing groove.

[0012] Furthermore, the electrical connection portion includes an electrical socket and a TYPE-C input line, and the third support portion is provided with an electrical socket hole.

[0013] Furthermore, a first circuit control board is provided between the outer wall of the component support part and the inner wall of the lower shell area, a wire through hole is provided on the second support part, a positive conductive sheet and a negative conductive sheet are provided on the first circuit control board, and a positive channel and a negative channel are provided on the first support part.

[0014] Furthermore, a button switch is provided on the upper shell area, and a second circuit control board is provided on the inner wall of the upper shell area.

[0015] Furthermore, a spring is provided on the positive electrode channel of the first support portion, one end of the spring is fixedly connected to the positive electrode conductive sheet, and the other end is used to stop the battery, and a strip protrusion is provided on the side surface of the lower end of the third support portion.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a fixing part between the shell and the battery assembly. The detachable battery assembly is provided with a waterproof component and a charging socket, which is electrically connected to the internal circuit in a touch manner. The battery assembly is assembled and fixed in the shell through the fixing part to supply power to various components of the shell, so that consumers who do not have the ability to disassemble can easily disassemble the battery assembly. The disassembly is simple and quick, which improves the replacement speed of users and can facilitate the replacement of new battery assemblies or garbage sorting to avoid pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : A three-dimensional structural diagram of an electric toothbrush of the present utility model.

[0020] Figure 2 : A schematic longitudinal section view of an electric toothbrush of the present invention.

[0021] Figure 3 : Exploded view of the partial structure of the electric toothbrush of the present utility model.

[0022] Figure 4 : A cross-sectional view of the battery assembly of the utility model located in the lower shell area.

[0023] Figure 5: Exploded view of the battery assembly and the fixing part of the first embodiment of the utility model.

[0024] Figure 6 : A cross-sectional exploded view of the battery assembly and motor structure of the present invention.

[0025] Figure 7 : The utility model Figure 6 Enlarged view of part A.

[0026] Figure 8 : Exploded view of the battery assembly of Example 1 of the present utility model.

[0027] Fig. 9 : A partial structural cross-sectional view of a battery assembly of the present utility model.

[0028] Fig.10 : The utility model Fig. 9 Enlarged view of part B.

[0029] Fig.11 : The utility model Figure 6 Enlarged view of part C.

[0030] Fig.12 : Exploded view of the battery assembly of the second embodiment of the present utility model.

[0031] Fig.13 : Cross-section of the battery assembly of the second embodiment of the present utility model Figure 1 .

[0032] Fig.14 : Cross-section of the battery assembly of the second embodiment of the present utility model Figure 2 .

[0033] Fig.15 : The utility model Fig.14 Enlarged view of part D.

[0034] The components in the accompanying drawings are marked as follows: 1-replaceable brush head; 2-housing; 21-upper shell area; 211-motor; 22-lower shell area; 3-battery assembly; 31-first support portion; 311-connecting wall; 312-first sealing groove; 313-positive electrode channel; 314-negative electrode channel; 315-card slot; 32-battery body; 33-second support portion; 331-connecting column; 332-wire through hole; 333-annular protrusion; 34-third support portion; 342-cover groove; 343-dust cover plate; 344-second sealing slot; 345-avoidance slot; 346-third sealing slot; 347-power plug hole; 348-strip protrusion; 35-electrical connection part; 351-power plug port; 352-TYPE-C input line; 36-waterproof part; 361-first waterproof part; 362-second waterproof part; 363-third waterproof part; 4-fixing part; 41-magnet; 42-hook; 5-assembly support part; 6-first circuit control board; 61-positive conductive sheet; 62-negative conductive sheet; 7-button switch; 8-second circuit control board; 9-spring. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0036] See also Figure 1-15 ;

[0037] like Figure 1 , Figure 2 and Figure 3 Shown is an electric toothbrush of the present application, which includes a replaceable brush head 1, a shell 2 and a battery assembly 3. The replaceable brush head 1 can be detachably connected to the shell 2. A fixing portion 4 is provided between the shell 2 and the battery assembly 3. The battery assembly 3 is assembled and fixed in the shell 2 through the fixing portion 4 to supply power to various components of the shell 2 (such as the motor 211); the battery assembly 3 can also be removed from the shell 2, which can facilitate replacement of the battery assembly 3 with a new one or good garbage sorting to avoid pollution to the environment.

[0038] like Figure 2-6As shown, the shell 2 includes an upper shell area 21 and a lower shell area 22. The upper end of the upper shell area 21 is provided with a brush head opening for detachably connecting the replaceable brush head 1. The lower end of the upper shell area 21 is internally installed with a motor 211 and other components capable of driving the replaceable brush head 1 to move. The lower shell area 22 is internally provided with an assembly support portion 5 for installing the battery assembly 3. The fixing portion 4 is arranged on the assembly support portion 5. The fixing portion 4 of this embodiment uses two magnets 41. The battery assembly 3 includes a first support portion 31 , a battery body 32, a second support portion 33, a third support portion 34, an electrical connection portion 35 and a waterproof portion 36. The first support portion 31 is made of metal. When the battery assembly 3 is assembled in the shell 2, the first support portion 31 passes through the inner wall of the assembly support portion 5 and is adsorbed and fixed by the magnet 41, so that the battery assembly 3 as a whole is fixed in the assembly support portion 5. Only one magnet 41 can also be used as long as the magnetic force can adsorb the battery assembly 3 as a whole and it will not fall off during use or movement.

[0039] like Figure 4 As shown, the battery body 32 of this embodiment is fixed inside the first support part 31, the electrical connection part 35 is installed on the third support part 34, and the second support part 33 is arranged between the first support part 31 and the third support part 34. An annular connecting wall 311 is extended downward at the lower end of the first support part 31, and a connecting column 331 extending upward and adapted to be snapped into the inside of the connecting wall 311 is provided at the upper end of the second support part 33. The connecting column 331 is inserted into the connecting wall 311 to achieve the connection, fixation and stability between the first support part 31 and the second support part 33. The position of the battery body 32 in the first support part 31 can make the internal structure of the electric toothbrush compact and prevent shaking from causing poor contact.

[0040] like Figure 7 As shown, an upwardly extending annular protrusion 333 is provided at the outer side of the connecting column 331 at the upper end of the second supporting portion 33, and a first sealing groove 312 which is vertically recessed and adapted to the annular protrusion 333 is provided on the lower end surface of the connecting wall 311. The waterproof portion 36 of this embodiment includes a first waterproof component 361 with an interference fit provided on the first sealing groove 312, and the waterproofing and fixation between the first supporting portion 31 and the second supporting portion 33 are achieved by the annular protrusion 333 being inserted into the first sealing groove 312 and pressing the first waterproof component 361.

[0041] like Figure 8As shown, the electrical connection portion 35 of this embodiment includes a plug port 351, and a plug hole 347 is provided on the third support portion 34. The plug port 351 is arranged in the plug hole 347. The plug hole 347 is provided with an insertion end for an external plug head to be inserted for charging. A cover groove 342 is provided on the third support portion 34, and a detachable dust cover 343 is provided on the cover groove 342. By providing the dust cover 343, external debris can be effectively prevented from entering the plug hole 347, thereby effectively improving the plug-in efficiency.

[0042] like Figure 9-10 As shown, a second sealing groove 344 is provided on one side of the cover groove 342, and a side wall of the second sealing groove 344 is provided with an annular avoidance groove 345. The waterproof portion 36 of this embodiment also includes a deformable second waterproof component 362 provided on the second sealing groove 344 and located between the plug port 351 and the dustproof cover plate 343. The part of the deformable second waterproof component 362 that is excessive on the second sealing groove 344 is inserted into the avoidance groove 345 to fill the gap between the dustproof cover plate 343 and the plug port 351, thereby preventing external moisture from flowing into the plug port 351 from the gap between the dustproof cover plate 343 and the cover groove 342, thereby affecting the charging effect of the plug port 351 on the battery body 32.

[0043] like Figure 6 , Fig. 9 and Fig.11 As shown, a third sealing groove 346 is provided on the outer side of the third support portion 34. The waterproof portion 36 of this embodiment also includes a third waterproof component 363 provided on the third sealing groove 346. The third waterproof component 363 fills the gap between the inner wall of the lower shell area 22 and the outer wall of the third support portion 34 to prevent water leakage after the battery assembly 3 is installed in the shell 2, resulting in inability to use, thereby reducing the user experience.

[0044] like Figure 6As shown, the electrical connection part 35 also includes a TYPE-C input line 352. A first circuit control board 6 is provided between the outer wall of the component support part 5 and the inner wall of the lower shell area 22. A wire through hole 332 is provided on the second support part 33. One end of the TYPE-C input line 352 is electrically connected to the plug port 351, and the other end passes through the wire through hole 332 to be electrically connected to the first circuit control board 6. The first circuit control board 6 is provided with a positive conductive sheet 61 and a negative conductive sheet 62. The first support part 31 is provided with a positive conductive sheet 61. The positive electrode channel 313 and the negative electrode channel 314, the battery body 32 is provided with a positive electrode and a negative electrode, the positive electrode conductive sheet 61 passes through the positive electrode channel 313 (or the positive electrode of the battery body 32 passes through the positive electrode channel 313) and is electrically connected with the positive electrode of the battery body 32 (or the positive electrode conductive sheet 61), and the negative electrode conductive sheet 62 passes through the negative electrode channel 314 and is electrically connected with the negative electrode of the battery body 32. In this regard, the battery body 32 can be charged through the power socket 351, the TYPE-C input line 352 and the first circuit control board 6 for charging or discharging.

[0045] Specifically, a button switch 7 is provided on the upper shell area 21, and a second circuit control board 8 is provided between the outer wall of the motor 211 and the inner wall of the upper shell area 21. The motor 211 and the second circuit control board 8 are electrically connected to the first control circuit board 6 at the same time, and the button switch 7 can be moved up and down or pressed by the user to make the second circuit control board 8 connect or disconnect the working circuit, thereby realizing functions such as starting or stopping the motor 211.

[0046] Specifically, the diameter of the lower end of the third support portion 34 is consistent with the diameter of the shell 2, which will not cause trouble to the user's holding. At the same time, a spring 9 is provided on the positive channel 313 of the first support portion 31, one end of the spring 9 is fixedly connected to the positive conductive sheet 61, and the other end is used to stop the battery body 32. A strip protrusion 348 is provided on the side of the lower end of the third support portion 34, which can facilitate the user to easily distinguish the shell 2 and the battery assembly 3. When the battery assembly 3 needs to be removed, it is pulled outward with force. At the same time, the spring 9 can pop the battery assembly 3 out of the shell 2, so that the battery assembly 3 is easily taken out, and then the battery body 32 is replaced, so that consumers who do not have the ability to disassemble can easily disassemble the battery assembly 3. The disassembly is simple and quick, which improves the user's replacement speed.

[0047] like Figure 12-15The second embodiment of the utility model is shown, which is different from the first embodiment in that the fixing portion 4 is an elastic hook 42 arranged on the component support portion 5, and a slot 315 adapted to the hook 42 is provided on the outer side of the first support portion 31. When the battery assembly 3 is installed in the lower shell area 22, the battery assembly 3 is clamped by the hook 42 through the slot 315 to achieve assembly and positioning in the shell 2. At least one or more hooks 42 are set. In this embodiment, there are two hooks 42, which are symmetrically arranged on the component support portion 5. The two hooks 42 clamp the slot 315 at the same time, so that the component support portion 5 has a more uniform clamping force on the battery assembly 3, thereby improving the stability of the battery assembly 3 in the shell 2.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. An electric toothbrush, characterized in that: The invention comprises a replaceable brush head (1), a shell (2) and a battery assembly (3); the replaceable brush head (1) is detachably connected to the shell (2); a fixing portion (4) is provided between the shell (2) and the battery assembly (3); and the battery assembly (3) is assembled and fixed in the shell (2) via the fixing portion (4).

2. An electric toothbrush according to claim 1, characterized in that: The battery assembly (3) comprises a first support portion (31), a battery body (32), a second support portion (33), a third support portion (34), an electrical connection portion (35) and a waterproof portion (36).

3. An electric toothbrush according to claim 2, characterized in that: The shell (2) comprises an upper shell area (21) and a lower shell area (22); a component support portion (5) for mounting the battery component (3) is provided inside the lower shell area (22); and the fixing portion (4) is a magnet (41).

4. An electric toothbrush according to claim 3, characterized in that: The fixing portion (4) is an elastic hook (42) arranged on the component support portion (5), and a slot (315) adapted to the hook (42) is provided on the outer side of the first support portion (31).

5. An electric toothbrush according to claim 3 or 4, characterized in that: A connecting wall (311) is provided at the lower end of the first supporting portion (31), and a connecting column (331) is provided at the upper end of the second supporting portion (33).

6. An electric toothbrush according to claim 5, characterized in that: An annular protrusion (333) is provided at the upper end of the second supporting portion (33), a first sealing groove (312) is provided on the lower end surface of the connecting wall (311), a first waterproof component (361) is provided on the first sealing groove (312), and a cover groove (342) is provided on the third supporting portion (34), and a detachable dust cover plate (343) is provided on the cover groove (342).

7. An electric toothbrush according to claim 6, characterized in that: A second sealing groove (344) is provided on one side of the cover groove (342), an annular avoidance groove (345) is provided on the side wall of the second sealing groove (344), a deformable second waterproof component (362) is provided on the second sealing groove (344), a third sealing groove (346) is provided on the outer side of the third support portion (34), and a third waterproof component (363) is provided on the third sealing groove (346).

8. An electric toothbrush according to claim 7, characterized in that: The electrical connection portion (35) comprises an electrical plug port (351) and a TYPE-C input line (352), and the third support portion (34) is provided with an electrical plug hole (347).

9. An electric toothbrush according to claim 3, characterized in that: A first circuit control board (6) is provided between the outer wall of the component support portion (5) and the inner wall of the lower shell region (22); a wire through hole (332) is provided on the second support portion (33); a positive electrode conductive sheet (61) and a negative electrode conductive sheet (62) are provided on the first circuit control board (6); a positive electrode channel (313) and a negative electrode channel (314) are provided on the first support portion (31); a button switch (7) is provided on the upper shell region (21); and a second circuit control board (8) is provided on the inner wall of the upper shell region (21).

10. An electric toothbrush according to claim 9, characterized in that: A spring (9) is provided on the positive electrode channel (313) of the first support portion (31), one end of the spring (9) is fixedly connected to the positive electrode conductive sheet (61), and the other end is used to stop the battery body (32), and a strip-shaped protrusion (348) is provided on the side surface of the lower end of the third support portion (34).

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