Electric toothbrush
By adopting a combination of positioning structure and fasteners in electric toothbrushes, the charging problem caused by loose brush handle coil holder is solved, achieving more stable installation and more efficient charging.
Patent Information
- Application Number
- CN202421145390.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The brush handle coil holder of existing wireless charging electric toothbrushes is connected by glue, and the glue can easily loosen or fall off after failure, resulting in slower charging speed or inability to charge.
The positioning structure includes a positioning column and a positioning hole. The brush handle coil frame and the movement support are fixedly connected through the positioning structure, and the bottom cover and the movement support are fixedly connected through fasteners to ensure the stable installation of the brush handle coil frame.
It improves the installation stability of the brush handle coil holder, avoids the problem of slower charging speed or inability to charge, and improves the user experience.
Smart Images

Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of daily necessities, in particular to an electric toothbrush. Background Art
[0002] The brush handle coil frame of the existing wireless charging electric toothbrush is usually connected to the bottom cover by gluing. After the glue fails, the brush handle coil frame loosens or falls off, causing the electric toothbrush to charge slowly or fail to charge. Utility Model Content
[0003] The main purpose of the utility model is to provide an electric toothbrush, aiming to prevent the electric toothbrush from being charged slowly or being unable to be charged.
[0004] In order to achieve the above-mentioned object, the utility model provides an electric toothbrush, including a toothbrush body, which includes:
[0005] Movement bracket;
[0006] A bottom cover, arranged at the bottom of the movement support; and
[0007] The brush handle coil frame is arranged between the bottom cover and the movement bracket. The brush handle coil frame and the movement bracket are positioned and matched through a positioning structure. The bottom cover and the movement bracket are fixedly connected to lock the brush handle coil frame.
[0008] In one embodiment, the positioning structure includes a positioning column and a positioning hole, one of the brush handle coil frame and the movement bracket is provided with the positioning column, and the other is provided with the positioning hole, and the positioning column is snap-fitted with the positioning hole.
[0009] In one embodiment, the toothbrush body also includes a fastener, the movement bracket includes a bracket body and a connecting portion, the connecting portion is arranged on a side of the bracket body close to the bottom cover, the connecting portion is provided with a positioning hole, and the bottom cover is provided with an installation hole corresponding to the positioning hole, and the fastener is passed through the installation hole and the positioning hole to fix the bottom cover and the movement bracket.
[0010] In one embodiment, the fastener is threadedly connected to the connecting portion.
[0011] In one embodiment, the bottom cover is provided with a boss, and the boss is arranged on a surface of the bottom cover close to the movement bracket, and the boss is annular. The bracket body is provided with a first limiting column and a second limiting column arranged opposite to the first limiting column, and both are arranged on the outer peripheral wall of the connecting part, and the first limiting column and the second limiting column are abutted against the end face of the boss.
[0012] In one embodiment, the end face of the connecting portion is inserted into the boss, the end face of the boss is provided with a first limiting groove, and the bracket body is further provided with a third limiting column and a fourth limiting column, the third limiting column is clamped with the first limiting groove, and the fourth limiting column is abutted against the boss.
[0013] In one embodiment, the bottom cover includes a bottom wall, a fixing ring connected to and protruding from the bottom wall, and a convex column connected to and protruding from the bottom wall, the convex column is located in the fixing ring, the brush handle coil frame is adapted to be embedded between the fixing ring and the convex column, and the movement bracket abuts against the convex column.
[0014] In one embodiment, the fixing ring is further provided with a fifth limit column and a sixth limit column, and the bracket body is further provided with a seventh limit column and an eighth limit column, the fifth limit column is provided with a first mounting notch, the sixth limit column is provided with a second mounting notch, the seventh limit column is clamped at the first mounting notch, and the eighth limit column is clamped at the second mounting notch.
[0015] In one embodiment, the toothbrush body further includes an elastic member, a main body shell and a charging stand, the main body shell is sleeved on the movement bracket, the elastic member abuts between the brush handle coil frame and the inner wall of the main body shell, and the charging stand is connected to the main body shell.
[0016] In one embodiment, the charging base includes a charging base coil bracket and a magnetic core. A mounting cavity is provided in the charging base, and the charging base coil bracket is located in the mounting cavity. A mounting column is provided at one end of the charging base, and the mounting column is hollow inside and communicated with the mounting cavity. One end of the magnetic core is at least partially located in the mounting column, and the other end is sleeved on the charging base coil bracket, and the charging base coil bracket is sleeved on the mounting column, and the mounting column is connected to the brush handle coil frame.
[0017] The technical solution of the utility model adopts a positioning structure to assemble the brush handle coil frame and the movement bracket together by snapping together the positioning column and the positioning hole, so that the brush handle coil frame is fixedly installed together with the movement bracket. The assembly process during manufacturing is simplified and the convenience of assembly is improved. It can be understood that the brush handle coil frame is provided with a positioning column, and the movement bracket is provided with a positioning hole. In order to better enhance the stability, a limit column can be provided on the movement bracket, and the positioning hole is provided inside the limit column, and then the positioning column is snapped into the positioning hole on the limit column to avoid shaking during use, thereby avoiding loosening of the brush handle coil frame during use, enhancing the installation stability of the brush handle coil frame, avoiding slow charging of the electric toothbrush or failure to charge, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] 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.
[0019] Figure 1 A schematic structural diagram of an embodiment of an electric toothbrush provided by the utility model;
[0020] Figure 2 for Figure 1 Schematic diagram of the decomposition of
[0021] Figure 3 for Figure 1 A cross-sectional schematic diagram in FIG.
[0022] Figure 4 for Figure 3 A partial enlarged view of the middle A;
[0023] Figure 5 A schematic structural diagram of an embodiment of a movement support provided by the utility model;
[0024] Figure 6 A schematic structural diagram of another embodiment of the movement support provided by the utility model;
[0025] Figure 7 A schematic structural diagram of an embodiment of a bottom cover provided by the utility model;
[0026] Figure 8 This is a structural schematic diagram of an embodiment of a brush handle coil bracket provided by the utility model.
[0027] Description of Figure Numbers:
[0028] 100. Toothbrush body; 10. Movement bracket; 11. Bracket body; 12. Connecting part; 13. Positioning hole; 111. First limiting column; 112. Second limiting column; 113. Third limiting column; 114. Fourth limiting column; 115. Seventh limiting column; 116. Eighth limiting column; 20. Bottom cover; 21. Mounting hole; 22. Boss; 23. First limiting groove; 24. Bottom wall; 25. Fixing ring; 26. Boss; 27. Fifth limiting column; 28. Eighth limiting column; 30. Coil frame of brush handle; 40. Positioning structure; 41. Positioning column; 42. Positioning hole; 50. Fastener; 60. Elastic member; 70. Main body shell; 80. Charging seat; 81. Charging seat coil bracket; 82. Magnetic core; 83. Mounting cavity; 84. Mounting column.
[0029] 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
[0030] 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.
[0031] 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.
[0032] 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.
[0033] The utility model provides an electric toothbrush.
[0034] The brush handle coil frame of the existing wireless charging electric toothbrush is usually connected to the bottom cover by gluing. After the glue fails, the brush handle coil frame loosens or falls off, causing the electric toothbrush to charge slowly or fail to charge.
[0035] Therefore, the utility model proposes an electric toothbrush, which can solve the above problems. The electric toothbrush usually includes a housing, a movement bracket, a charging stand and a battery. Usually, the battery is installed in the internal space of the housing, and the movement bracket is respectively provided with a battery accommodating area, a circuit board and a motor accommodating area. When the housing is placed on the charging stand, the charging stand starts to charge the battery. Of course, the positional relationship between the housing, the movement bracket, the charging stand and the battery is not limited to this.
[0036] The structure of the electric toothbrush, as well as the connection relationship and positional relationship of each structure are described below.
[0037] An electric toothbrush includes a toothbrush body 100, wherein the toothbrush body 100 includes: a bottom cover 20, which is arranged at the bottom of the movement bracket 10; and
[0038] The brush handle coil frame 30 is disposed between the bottom cover 20 and the movement bracket 10 . The brush handle coil frame 30 and the movement bracket 10 are positioned and matched with each other through a positioning structure 40 . The bottom cover 20 and the movement bracket 10 are fixedly connected to lock the brush handle coil frame 30 .
[0039] Please refer to Figures 1 to 8 An electric toothbrush proposed in the utility model includes a toothbrush body 100, wherein the toothbrush body 100 includes a movement bracket 10, a bottom cover 20 and a brush handle coil frame 30. In this solution, the brush handle coil frame 30 is fixedly connected to the movement bracket 10 through a positioning structure 40, so the brush handle coil frame 30 is fixedly installed between the bottom cover 20 and the movement bracket 10, avoiding loosening of the brush handle coil frame 30 during use, enhancing the installation stability of the brush handle coil frame 30, avoiding slow charging of the electric toothbrush or failure to charge, and improving the user experience.
[0040] It is understandable that the movement bracket 10 and the bottom cover 20 can be designed as an integral structure, or they can be split structures fixedly connected together. In this embodiment, the movement bracket 10 is integrally formed, and a battery accommodating area, a circuit board installation area, and a motor accommodating area are respectively provided. The battery and the circuit board can be fixed by snapping, without welding, and the installation is convenient and quick. It also makes maximum use of the various areas on the movement bracket 10, so that the internal structure of the toothbrush is compact and the installation structure is highly stable.
[0041] It is understandable that the positioning structure 40 can be a combination of a buckle and a slot. The brush handle coil frame 30 is provided with a buckle, and the movement bracket 10 is provided with a slot, which is connected to the slot so that the brush handle coil frame 30 and the movement bracket 10 are installed together.
[0042] It is understandable that the positioning structure 40 can be a combination of a connecting bolt and a threaded hole. The brush handle coil frame 30 is provided with a connecting bolt, and the movement bracket 10 is provided with a threaded hole. The connecting bolt is threadedly connected to the threaded hole, so that the brush handle coil frame 30 and the movement bracket 10 are installed together.
[0043] Please refer to Figures 1 to 8In one embodiment of the utility model, the positioning structure 40 includes a positioning column 41 and a positioning hole 42. One of the brush handle coil frame 30 and the movement bracket 10 is provided with the positioning column 41, and the other is provided with the positioning hole 42. The positioning column 41 is snap-fitted with the positioning hole 42.
[0044] The technical solution of the utility model adopts a positioning structure 40 to snap-fit the positioning column 41 and the positioning hole 42 together, so that the brush handle coil frame 30 is fixedly installed with the movement bracket 10. The assembly process during manufacturing is simplified and the assembly convenience is improved. It can be understood that the brush handle coil frame 30 is provided with a positioning column 41, and the movement bracket 10 is provided with a positioning hole 42. In order to better enhance the stability, a limiting column can be provided on the movement bracket 10, and the positioning hole 42 is provided inside the limiting column, and then the positioning column 41 is snapped into the positioning hole 42 on the limiting column to avoid shaking during use, thereby avoiding loosening of the brush handle coil frame 30 during use, enhancing the installation stability of the brush handle coil frame 30, avoiding slow charging of the electric toothbrush or failure to charge, and improving the user experience.
[0045] It is understandable that the cross section of the positioning post 41 can be circular, square, or other shapes, which are not specifically limited here. The utility model does not specifically limit the specific shape and size of the positioning post 41.
[0046] Please refer to Figures 1 to 8 In one embodiment of the utility model, the toothbrush body 100 also includes a fastener 50, the movement bracket 10 includes a bracket body 11 and a connecting portion 12, the connecting portion 12 is arranged on a side of the bracket body 11 close to the bottom cover 20, the connecting portion 12 is provided with a positioning hole 13, the bottom cover 20 is provided with a mounting hole 21 corresponding to the positioning hole 13, and the fastener 50 is passed through the mounting hole 21 and the positioning hole 13 to fix the bottom cover 20 and the movement bracket 10.
[0047] The technical solution of the utility model adopts a method to prevent the bottom cover 20 and the movement bracket 10 from loosening after assembly. Preferably, the bottom cover 20 and the movement bracket 10 are fixedly connected by the fastener 50. Furthermore, a connecting portion 12 is provided on the side of the bracket body 11 close to the bottom cover 20, a positioning hole 13 is provided inside the connecting portion 12, and a mounting hole 21 is correspondingly provided on the bottom cover 20. The fastener 50 passes through the positioning hole 13 and the mounting hole 21 to fix the bottom cover 20 and the movement bracket 10 together. The installation stability of the bottom cover 20 and the movement bracket 10 is improved, and then the installation stability of the brush handle coil frame 30 and the movement bracket 10 can be ensured.
[0048] It is understandable that the present invention does not specifically limit the specific shapes and sizes of the mounting hole 21 and the positioning hole 13 .
[0049] It can be understood that the toothbrush body 100 further includes a mounting cover, which is located between the fastener 50 and the bottom cover 20 , and the cover is provided at the fastener 50 .
[0050] Please refer to Figures 1 to 8 In one embodiment of the present invention, the fastener 50 is threadedly connected to the connecting portion 12 .
[0051] Preferably, the fastener 50 of the utility model is connected to the connecting portion 12 by threading. Such an arrangement enables the bottom cover 20 to be stably connected to the movement bracket 10, simplifies the assembly process during manufacturing, and improves assembly convenience.
[0052] Preferably, the fastener 50 is a connecting bolt.
[0053] It is understandable that the cross section of the connecting portion 12 may be circular, square, or other shapes, which are not specifically limited herein.
[0054] Please refer to Figures 1 to 8 In one embodiment of the utility model, the bottom cover 20 is provided with a boss 22, and the boss 22 is arranged on a surface of the bottom cover 20 close to the movement bracket 10, and the boss 22 is annular. The bracket body 11 is provided with a first limiting column 111 and a second limiting column 112, and both are arranged on the outer peripheral wall of the connecting part 12, and the end face of the connecting part 12 is inserted into the boss 22, and the first limiting column 111 and the second limiting column 112 are abutted against the end face of the boss 213.
[0055] The technical solution of the utility model adopts a boss 22 disposed on the top of the bottom cover 20 to limit the connection part 12. The connection part 12 is inserted in the area of the boss 22, so that the position of the connection part 12 can be limited, and then the bottom cover 20 is fixedly connected to the movement bracket 10 by the fastener 50. Furthermore, the first limiting column 111 and the second limiting column 112 on the bracket body 11 abut against the end surface of the boss 213, which plays a guiding role, so that the connection part 12 can better correspond to the area of the boss 22, increasing the installation stability of the connection part 12, so as to facilitate the fixed connection between the bottom cover 20 and the movement bracket 10.
[0056] It is understandable that the cross-sections of the connecting portion 12 and the first limiting column 111 and the second limiting column 112 can be circular, square, or other shapes, which are not specifically limited here. The utility model does not specifically limit the specific shapes and sizes of the connecting portion 12 and the first limiting column 111 and the second limiting column 112.
[0057] Please refer to Figures 1 to 8 In one embodiment of the utility model, the end face of the boss 22 is provided with a first limiting groove 23, and the bracket body 11 is also provided with a third limiting column 113 and a fourth limiting column 114, the third limiting column 113 is clamped with the first limiting groove 23, and the fourth limiting column 114 is abutted against the boss 22.
[0058] The technical solution of the utility model adopts a third limiting column 113 on the bracket body 11 to be snap-fitted with the first limiting groove 23, and a fourth limiting column 114 is in contact with the raised portion of the boss 213. The two are combined together to play a guiding role, so that the bracket body 11 can better correspond to the boss 22, thereby increasing the installation stability of the bracket body 11, so as to facilitate the fixed connection between the bottom cover 20 and the movement bracket 10.
[0059] It is understandable that the cross-section of the third limiting column 113 and the fourth limiting column 114 can be circular, square, or other shapes, which are not specifically limited here. The utility model does not specifically limit the specific shape and size of the third limiting column 113 and the fourth limiting column 114.
[0060] It is understandable that the present invention does not specifically limit the specific shape and size of the first limiting groove 23 .
[0061] Please refer to Figures 1 to 8 In one embodiment of the utility model, the bottom cover 20 includes a bottom wall 24, a fixing ring 25 connected to and protruding from the bottom wall 24, and a convex column 26 connected to and protruding from the bottom wall 24, the convex column 26 is located in the fixing ring 25, the brush handle coil frame 30 is adapted to be embedded between the fixing ring 25 and the convex column 26, and the movement bracket 10 is in contact with the convex column 26.
[0062] The technical solution of the utility model is to limit the installation of the brush handle coil frame 30 by fitting it between the fixing ring 25 and the boss 26, so as to make the structure more compact. The movement bracket 10 abuts against the boss 26 to play a guiding and limiting role, so that the movement bracket 10 and the bottom cover 20 can correspond to each other, and the movement bracket 10 and the bottom cover 20 can be fixedly connected together.
[0063] Please refer to Figures 1 to 8 In one embodiment of the utility model, the fixing ring 25 is further provided with a fifth limiting column 27 and a sixth limiting column 28, and the bracket body 11 is further provided with a seventh limiting column 115 and an eighth limiting column 116, the fifth limiting column 27 is provided with a first mounting notch, the sixth limiting column 28 is provided with a second mounting notch, the seventh limiting column 115 is clamped at the first mounting notch, and the eighth limiting column 116 is clamped at the second mounting notch.
[0064] The technical solution of the utility model adopts the fifth limiting column 27 on the fixing ring 25 to be clamped with the first installation notch of the seventh limiting column 115, and the sixth limiting column 28 to be clamped with the second installation notch of the eighth limiting column 116. The two cooperate together to play a guiding role, so that the bracket body 11 can better correspond to the bottom cover 20, thereby increasing the installation stability of the bracket body 11, so as to facilitate the fixed connection between the bottom cover 20 and the movement bracket 10.
[0065] It is understandable that the cross-section of the fifth limiting column 27 and the sixth limiting column 28 can be circular, square, or other shapes, which are not specifically limited here. The utility model does not specifically limit the specific shape and size of the fifth limiting column 27 and the sixth limiting column 28.
[0066] Please refer to Figures 1 to 8 In one embodiment of the utility model, the toothbrush body 100 also includes an elastic member 60, a main body shell 70 and a charging stand 80. The main body shell 70 is sleeved on the movement bracket 10. The elastic member 60 abuts between the brush handle coil frame 30 and the inner wall of the main body shell 70. The charging stand 80 is connected to the main body shell 70.
[0067] The technical solution of the utility model adopts a toothbrush body 100 and also includes an elastic member 60, a main body shell 70 and a charging stand 80. The main body shell 70 is sleeved on the movement bracket 10, further protecting the components on the movement bracket 10 and making it easy to take. After adding the elastic member 60, when the electric toothbrush vibrates, the brush handle coil frame 30 and the inner wall of the main body shell 70 are hard-connected, which will cause collisions at the connection during the vibration of the electric toothbrush, thereby causing a large noise, and long-term use will also affect the installation stability of the brush handle coil frame 30. After adding the elastic member 60, when the toothbrush vibrates, the hard connection relationship between the brush handle coil frame 30 and the main body shell 70 will be elastically buffered, thereby reducing vibration noise and enhancing the stability of the installation structure of the brush handle coil frame 30. The charging stand 80 is connected to the main body shell 70 and can be used to charge the toothbrush body 100.
[0068] It can be understood that the elastic member 60 can be an elastic washer, which is sleeved on the brush handle coil frame 30 .
[0069] Please refer to Figures 1 to 8In one embodiment of the utility model, the charging seat 80 includes a charging seat coil bracket 81 and a magnetic core 82. A mounting cavity 83 is provided in the charging seat 80. The charging seat coil bracket 81 is located in the mounting cavity 83. A mounting column 84 is provided at one end of the charging seat 80. The mounting column 84 is hollow inside and communicates with the mounting cavity 83. One end of the magnetic core 82 is at least partially located in the mounting column 84, and the other end is sleeved on the charging seat coil bracket 81. The charging seat coil bracket 81 is sleeved on the mounting column 84, and the mounting column 84 is connected to the brush handle coil frame 30.
[0070] The technical solution of the utility model adopts a charging seat coil bracket 81 to install the coil, and the bottom of the brush handle coil frame 30 cooperates with the mounting column 84. The interior of the mounting column 84 is hollow and a magnetic core 82 is arranged. Furthermore, the magnetic core 82 is arranged between the coil on the charging seat coil bracket 81 and the coil on the brush handle coil frame 30, which can improve the coupling efficiency and shorten the charging time of the electric toothbrush. A slot is provided on the main shell 70, and the mounting column 84 of the charging seat 80 is inserted into the slot to ensure accurate alignment between the wireless transmitting coil and the wireless receiving coil, and effectively prevent the toothbrush from tipping over.
[0071] 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. An electric toothbrush, characterized in that: The invention comprises a toothbrush body, wherein the toothbrush body comprises: Movement bracket; A bottom cover, arranged at the bottom of the movement support; and The brush handle coil frame is arranged between the bottom cover and the movement bracket. The brush handle coil frame and the movement bracket are positioned and matched through a positioning structure. The bottom cover and the movement bracket are fixedly connected to lock the brush handle coil frame.
2. The electric toothbrush according to claim 1, characterized in that: The positioning structure comprises a positioning column and a positioning hole. One of the brush handle coil frame and the movement bracket is provided with the positioning column, and the other is provided with the positioning hole. The positioning column is engaged with the positioning hole.
3. The electric toothbrush according to claim 1, characterized in that: The toothbrush body also includes a fastener, and the movement bracket includes a bracket body and a connecting part, the connecting part is arranged on a side of the bracket body close to the bottom cover, the connecting part is provided with a positioning hole, and the bottom cover is provided with a mounting hole corresponding to the positioning hole, and the fastener is passed through the mounting hole and the positioning hole to fix the bottom cover and the movement bracket.
4. The electric toothbrush according to claim 3, characterized in that: The fastener is threadedly connected to the connecting portion.
5. The electric toothbrush according to claim 3, characterized in that: The bottom cover is provided with a boss, and the boss is arranged on a surface of the bottom cover close to the movement bracket. The boss is annular, and the bracket body is provided with a first limiting column and a second limiting column arranged opposite to the first limiting column, and both are arranged on the outer peripheral wall of the connecting part, and the first limiting column and the second limiting column are abutted against the end face of the boss.
6. The electric toothbrush according to claim 5, characterized in that: The end face of the connecting portion is inserted on the boss, the end face of the boss is provided with a first limiting groove, the bracket body is further provided with a third limiting column and a fourth limiting column, the third limiting column is clamped with the first limiting groove, and the fourth limiting column abuts against the boss.
7. The electric toothbrush according to claim 3, characterized in that: The bottom cover includes a bottom wall, a fixing ring connected to and protruding from the bottom wall, and a convex column connected to and protruding from the bottom wall. The convex column is located in the fixing ring, the brush handle coil frame is adapted to be embedded between the fixing ring and the convex column, and the movement bracket abuts against the convex column.
8. The electric toothbrush according to claim 7, characterized in that: The fixing ring is also provided with a fifth limiting column and a sixth limiting column, and the bracket body is also provided with a seventh limiting column and an eighth limiting column, the fifth limiting column is provided with a first mounting notch, the sixth limiting column is provided with a second mounting notch, the seventh limiting column is clamped at the first mounting notch, and the eighth limiting column is clamped at the second mounting notch.
9. The electric toothbrush according to claim 8, characterized in that: The toothbrush body also includes an elastic member, a main body shell and a charging stand. The main body shell is sleeved on the movement bracket. The elastic member abuts between the brush handle coil frame and the inner wall of the main body shell. The charging stand is connected to the main body shell.
10. The electric toothbrush according to claim 9, characterized in that: The charging base includes a charging base coil bracket and a magnetic core. A mounting cavity is provided in the charging base, and the charging base coil bracket is located in the mounting cavity. A mounting column is provided at one end of the charging base, and the mounting column is hollow inside and communicated with the mounting cavity. One end of the magnetic core is at least partially located in the mounting column, and the other end is sleeved on the charging base coil bracket, and the charging base coil bracket is sleeved on the mounting column, and the mounting column is connected to the brush handle coil frame.