Electric toothbrush

Abstract

The electric toothbrush comprises a shell, a machine core assembly and a charging assembly, and the machine core assembly and the charging assembly are arranged in a cavity of the shell from top to bottom; the machine core assembly comprises a support, a first battery contact piece, a rechargeable battery and a control panel arranged on one side of the support, the first battery contact piece and the rechargeable battery are arranged on the support from top to bottom, and the control panel is electrically connected with the first battery contact piece. The charging assembly comprises a second battery contact piece, a charging base and a charging panel arranged on one side of the charging base, the second battery contact piece is arranged at the top end of the charging base, the charging panel is electrically connected with the second battery contact piece, and the charging panel is electrically connected with the control panel in a contact mode; the first battery contact piece and the second battery contact piece are in contact connection with the two ends of the rechargeable battery respectively. The charger can be charged, the battery is easy to replace, and the product is not easy to damage.

Description

Technical Field

[0001] The utility model relates to the technical field of toothbrushes, and more specifically to an electric toothbrush. Background Art

[0002] The mainstream electric toothbrushes on the market are rechargeable electric toothbrushes, but the service life of the built-in batteries is generally only 2 to 3 years, which greatly limits the service life of electric toothbrushes. To replace the battery of existing electric toothbrushes, the entire internal movement must be removed before replacing the battery, which increases the risk of product damage.

[0003] Therefore, in order to extend the service life of the electric toothbrush and reduce the risk of product damage, it is required that the battery can be replaced without removing the entire movement. For example, Chinese Patent No.: 202311113541.0 discloses an electric toothbrush, including: a battery assembly, the battery assembly includes a battery, a battery holder, a charging coil and an electrical connection part, the battery, the charging coil and the electrical connection part are all connected to the battery holder, the battery is electrically connected to the electrical connection part, the charging coil and the electrical connection part are electrically connected, and the induced current generated by the charging coil can charge the battery; and a main body, the main body includes a shell, a control board and a battery cover, the shell has a cavity, the control board and the battery assembly are arranged in the cavity, the battery cover closes the opening of the cavity, and the control board is electrically connected to the control board through the electrical connection part. Although this prior art can replace the battery without removing the movement, it adopts the method of first removing the battery assembly and then removing the battery from the battery assembly to replace the battery, which is not only inconvenient to operate, but also has a complex product structure and high cost. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides an electric toothbrush which is rechargeable, has easy battery replacement and is not prone to damage.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An electric toothbrush comprises a shell, a core assembly and a charging assembly, wherein the core assembly and the charging assembly are arranged in a cavity of the shell from top to bottom; the core assembly comprises a bracket, a first battery contact piece, a rechargeable battery and a control board arranged on one side of the bracket, the first battery contact piece and the rechargeable battery are arranged on the bracket from top to bottom, and the control board is electrically connected to the first battery contact piece; the charging assembly comprises a second battery contact piece, a charging base and a charging board arranged on one side of the charging base, the second battery contact piece is arranged at the top of the charging base, the charging board is electrically connected to the second battery contact piece, and the charging board is electrically connected to the control board in a contact manner; the first battery contact piece and the second battery contact piece are respectively contact-connected with two ends of the rechargeable battery.

[0007] The upper end of the rechargeable battery contacts the first battery contact piece on the bracket, and the lower end contacts the second battery contact piece on the top of the charging base, that is, the bottom of the rechargeable battery is supported by the second battery contact piece. When the battery needs to be replaced, after the charging assembly is taken out from the bottom of the shell, the rechargeable battery will naturally fall and slide out of the shell without the support of the lower contact piece. The rechargeable battery has a simple structure and is easy to replace.

[0008] The above-mentioned electric toothbrush adopts a design in which the battery and the charging component are separated, so that the charging component can be removed without removing the movement, thereby making it more convenient to remove the battery, reducing the risk of product damage, and thus extending the service life of the electric toothbrush.

[0009] In a preferred technical solution, the outer shell includes a handle shell, a button arranged on the outer surface of the handle shell and a bottom cover arranged at the bottom of the handle shell. The button is electrically connected to the control panel for conveying user instructions to the control panel. A bottom cover sealing ring is provided between the bottom cover and the handle shell to achieve sealing and waterproofing.

[0010] In a preferred technical solution, the charging base includes a top cover, a charging bottom cover and a bottom cover connected in sequence from top to bottom, the second battery contact piece is arranged on the top cover, and the charging plate is arranged on the charging bottom cover; wherein, the charging plate is first installed in the charging bottom cover, and then the top cover is used to seal the top opening of the charging bottom cover, and then the second battery contact piece is installed on the top cover. The charging base in this technical solution has a simple structure and is easy to assemble.

[0011] The center of the lower end surface of the charging bottom cover is provided with a through hole and slots are provided at both ends of the through hole, through which the charging bottom cover can be rotated to facilitate the removal of the charging assembly. In specific implementation, the charging assembly can be removed by rotating the charging bottom cover of the charging assembly with a coin or a special tool, and the battery can be taken out, which is convenient and quick to operate.

[0012] The bottom cover is movably connected to the charging bottom cover through an insert structure to close the through hole, thereby preventing dust and water. Moreover, the insert structure makes it easy to open the bottom cover and take out the rechargeable battery.

[0013] In another preferred technical solution, the charging base includes a charging bracket, a charging bottom cover and a bottom cover connected in sequence from top to bottom; the second battery contact piece is arranged on the upper end surface of the charging bracket, and the charging plate is arranged on the charging bracket; the charging base in this technical solution uses the charging bracket to fix the second battery contact piece and the charging plate, and the charging bracket is directly installed on the charging bottom cover, which is easy to install.

[0014] The center of the lower end surface of the charging bottom cover is provided with a through hole and slots are provided at both ends of the through hole, which is convenient for removing the charging assembly. The bottom cover is movably connected to the charging bottom cover through an insert structure to close the through hole, which is easy to open and can prevent dust and water.

[0015] In a preferred technical solution, a buckle is provided on the outer wall of the charging bottom cover, and a limit slot is provided on the inner wall of the bottom cover. The charging bottom cover is rotatably connected to the bottom cover through the buckle and the limit slot; in this technical solution, the charging bottom cover is connected to the bottom cover through the buckle structure, and it is very convenient to assemble and remove. A charging seat sealing ring is provided between the charging bottom cover and the bottom cover to play a sealing and waterproof role.

[0016] In a preferred technical solution, the movement assembly also includes a motor drive device, which is arranged on the bracket and located above the first battery contact sheet, and is electrically connected to the control board; the motor drive device includes a motor and a drive shaft driven by the motor, and the drive shaft is used to connect the toothbrush head. The motor drive device of this technical solution is integrated on the movement assembly, which is easy to install and can drive the toothbrush head to vibrate, and brush teeth according to the intensity set by the user under the control of the control board. A top sealing ring is provided between the drive shaft of the motor drive device and the handle housing to further enhance the sealing and waterproof effect.

[0017] In a preferred technical solution, the charging board includes a charging component and at least two contact terminals; at least two contact terminals are electrically connected to the second battery contact sheet and the charging component, respectively, and at least two contact terminals are electrically connected to the back of the control board. The contact terminal can be a metal piece that contacts the control board for charging or data transmission. In this technical solution, since the charging board and the control board are electrically connected through contact connection, the charging assembly and the movement assembly can be easily separated, and the charging assembly can be removed from the housing as a whole, and the rechargeable battery also slides out, making battery replacement more convenient.

[0018] In a preferred technical solution, the charging component is a charging interface, and the charging interface is a USB interface, a DC interface or a contact point. The above charging interfaces in this technical solution are simple in structure, easy to install, and can realize the charging function.

[0019] In a preferred technical solution, the charging component is a wireless charging coil. The electric toothbrush in this technical solution adopts a wireless charging method and is easy to use.

[0020] In a preferred technical solution, the contact terminal is a copper pin with an elastic structure. The copper pin has excellent electrical conductivity, corrosion resistance and mechanical strength. In this technical solution, the copper pin is in elastic contact with the control board, which is suitable for multiple assembly and disassembly and maintains good contact.

[0021] It can be seen from the above technical solution that compared with the prior art, the beneficial effect of the utility model is: the utility model provides an electric toothbrush, which adopts a design in which the battery and the charging component are separated, and the charging component can be removed without removing the movement, thereby making it more convenient to remove the battery, reducing the risk of product damage, and effectively extending the service life of the electric toothbrush.

[0022] In addition, other advantages of the present invention will be given in the following description, and some will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the internal structure of the electric toothbrush of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the housing of the utility model;

[0026] Figure 3 It is a schematic cross-sectional structure diagram of the electric toothbrush of the utility model;

[0027] Figure 4 It is a structural schematic diagram of a charging assembly in one embodiment of the utility model;

[0028] Figure 5 A schematic diagram of the battery disassembly process of the utility model;

[0029] Figure 6 It is a structural schematic diagram of a charging assembly in another embodiment of the utility model;

[0030] Figure 7 This is a schematic structural diagram of a charging assembly in yet another embodiment of the present utility model;

[0031] Explanation of the reference numerals: 1. toothbrush head; 2. outer shell; 21. handle shell; 22. button; 23. bottom cover; 3. movement assembly; 31. bracket; 32. motor drive device; 33. first battery contact piece; 34. rechargeable battery; 35. control board; 36. top sealing ring; 37. bottom cover sealing ring; 4. charging assembly; 41. second battery contact piece; 42. charging board; 421. contact terminal; 422. charging interface; 43. charging bottom cover; 431. card slot; 432. buckle; 44. bottom cover; 45. charging seat sealing ring; 46. top cover; 47. charging bracket; 48. DC interface; 49. charging coil. DETAILED DESCRIPTION

[0032] 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 in 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.

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] Reference Figure 1-7 An electric toothbrush according to an embodiment of the utility model is described.

[0035] In one embodiment, Figure 1-4 As shown, an electric toothbrush includes a shell 2, a core assembly 3 and a charging assembly 4, wherein the core assembly 3 and the charging assembly 4 are arranged in the cavity of the shell 2 from top to bottom; wherein, the electric toothbrush also includes a toothbrush head 1.

[0036] The movement assembly 3 includes a bracket 31, a first battery contact piece 33, a rechargeable battery 34 and a control board 35 arranged on one side of the bracket 31. The first battery contact piece 33 and the rechargeable battery 34 are arranged on the bracket 31 from top to bottom, and the control board 35 is electrically connected to the first battery contact piece 33; wherein, the bracket 31 includes a motor bracket and a battery bracket from top to bottom, the motor bracket is used to install the motor drive device 32, the battery bracket is used to place the rechargeable battery 34, and the first battery contact piece 33 is arranged on the top of the battery bracket to contact and connect with the negative pole of the rechargeable battery 34.

[0037] The charging assembly 4 includes a second battery contact piece 41, a charging base and a charging plate 42 arranged on one side of the charging base, the second battery contact piece 41 is arranged at the top of the charging base, the charging plate 42 is electrically connected to the second battery contact piece 41, and the charging plate 42 is electrically connected to the control board 35 in contact; wherein, the second battery contact piece 41 is arranged at the top of the charging base to contact and connect with the positive pole of the rechargeable battery 34.

[0038] The first battery contact piece 33 and the second battery contact piece 41 are respectively connected to the two ends of the rechargeable battery 34. In a specific implementation, the positive electrode of the rechargeable battery 34 is connected to the second battery contact piece 41, and the negative electrode is connected to the first battery contact piece 33 to form a circuit. The first battery contact piece 33 is connected to the control board 35, and the second battery contact piece 41 is connected to the charging board 42. The charging component 4 supplies power to the toothbrush and can also charge the rechargeable battery 34.

[0039] In this embodiment, the outer shell 2 includes a handle shell 21, a button 22 arranged on the outer surface of the handle shell 21 and a bottom cover 23 arranged at the bottom of the handle shell 21, the button 22 is electrically connected to the control panel 35; a bottom cover 23 sealing ring 37 is provided between the bottom cover 23 and the handle shell 21 for sealing and waterproofing.

[0040] In this embodiment, the charging base includes a top cover 46, a charging bottom cover 43 and a bottom cover 44 connected in sequence from top to bottom, the second battery contact piece 41 is arranged on the top cover 46, and the charging plate 42 is arranged on the charging bottom cover 43; a through hole is arranged at the center of the lower end surface of the charging bottom cover 43, and card slots 431 are arranged at both ends of the through hole. The card slot 431 serves as a rotating operation part, and a coin or other tool can be inserted therein, so as to rotate the charging bottom cover 43 to take out the charging assembly 4 and the rechargeable battery 34.

[0041] The bottom cover 44 is movably connected to the charging bottom cover 43 through an inserting structure to close the through hole. The bottom cover 44 is provided with an inserting portion, and the charging bottom cover 43 is provided with a matching socket. The bottom cover 44 is movably connected to the charging bottom cover 43 by inserting its inserting portion into the socket. In a specific implementation, the bottom cover 44 can play a role of sealing and waterproofing.

[0042] In this embodiment, a buckle 432 is provided on the outer wall of the charging bottom cover 43, and a limiting slot is provided on the inner wall of the bottom cover 23. The charging bottom cover 43 is rotatably connected to the bottom cover 23 through the buckle 432 and the limiting slot; a charging seat sealing ring 45 is provided between the charging bottom cover 43 and the bottom cover 23 for sealing and waterproofing.

[0043] like Figure 5 As shown, when replacing the rechargeable battery 34 of the electric toothbrush, use a coin or a special tool to insert the card slot 431 on the lower end surface of the charging bottom cover 43, rotate the charging bottom cover 43 counterclockwise to take out the charging component 4, and then take out the rechargeable battery 34; then, insert the new rechargeable battery 34 into the bracket 31 of the movement component 3, and then insert the charging component 4, use a coin or a special tool to insert the groove on the lower end surface of the charging bottom cover 43, rotate the charging component 4 clockwise, so that the buckle 432 at the upper end of the charging bottom cover 43 is buckled into the limit card slot of the bottom cover 23.

[0044] In this embodiment, the movement assembly 3 also includes a motor drive device 32, which is arranged on the bracket 31 and located above the first battery contact piece 33, and the motor drive device 32 is electrically connected to the control board 35; a top sealing ring 36 is provided between the driving shaft of the motor drive device 32 and the handle housing 21 for sealing and waterproofing.

[0045] In this embodiment, the charging board 42 includes a charging interface 422 and three contact terminals 421. The three contact terminals 421 are respectively connected to the second battery contact piece 41, the positive pole of the charging interface 422 and the negative pole of the charging interface 422. The three contact terminals 421 are all electrically connected to the back side of the control board 35 in a contact manner.

[0046] The charging interface 422 can be a USB interface, which has mature technology and high versatility. The contact terminal 421 is a copper pin with an elastic structure, which can ensure good contact with the control board 35. In specific implementation, the charging component 4 is connected to the movement component 3 through two or more contact terminals 421, without wires, which is easy to disassemble.

[0047] In another embodiment, Figure 6 As shown, the charging base includes a charging bracket 47, a charging bottom cover 43 and a bottom cover 44 which are connected in sequence from top to bottom; the second battery contact piece 41 is arranged on the upper end surface of the charging bracket 47, and the charging plate 42 is arranged on the charging bracket 47; a through hole is provided at the center of the lower end surface of the charging bottom cover 43 and card grooves 431 are provided at both ends of the through hole, and the bottom cover 44 is movably connected to the charging bottom cover 43 through an embedded structure for closing the through hole.

[0048] In one implementation of this embodiment, the charging board 42 includes a DC interface 48 and three contact terminals 421, the three contact terminals 421 are respectively connected to the second battery contact piece 41, the positive electrode of the charging interface 422 and the negative electrode of the charging interface 422, and the three contact terminals 421 are all electrically connected to the back of the control board 35 in a contact manner. Among them, the three contact terminals 421 are respectively connected to the second battery contact piece 41, the negative electrode of the DC interface 48 and the positive electrode of the DC interface 48. The charging bracket 47 fixes the charging board 42 and the second battery contact piece 41. In specific implementation, the DC interface 48 can be replaced with a contact point.

[0049] In this embodiment, the DC socket has the advantages of simple structure, convenient installation, safety, reliability and strong adaptability; the contact point has a simple structure and is easy to connect.

[0050] In yet another embodiment, Figure 7 As shown, the charging base includes a charging bracket 47, a charging bottom cover 43 and a bottom cover 44 which are connected in sequence from top to bottom; the second battery contact piece 41 is arranged on the upper end surface of the charging bracket 47, and the charging plate 42 is arranged on the charging bracket 47; a through hole is provided at the center of the lower end surface of the charging bottom cover 43 and card grooves 431 are provided at both ends of the through hole, and the bottom cover 44 is movably connected to the charging bottom cover 43 through an embedded structure for closing the through hole.

[0051] In this embodiment, the charging board 42 includes a wireless charging coil 49 and three contact terminals 421. The three contact terminals 421 are respectively connected to the second battery contact piece 41 and the two ends of the wireless charging coil 49. The three contact terminals 421 are all electrically connected to the back side of the control board 35 in a contact manner.

[0052] In the above embodiment, a wireless charging coil 49 is used to realize wireless charging of the electric toothbrush, which makes charging more convenient.

[0053] Other structures and operations of the electric toothbrush according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of this specification, the reference terms "embodiment", "specific embodiment", "example" and the like mean that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention.

[0056] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined with each other in any one or more embodiments or examples in a suitable manner without interference or contradiction.

Claims

1. An electric toothbrush, characterized in that: It comprises a housing, a core assembly and a charging assembly, wherein the core assembly and the charging assembly are arranged in the cavity of the housing from top to bottom; The core assembly includes a bracket, a first battery contact sheet, a rechargeable battery and a control board arranged on one side of the bracket, the first battery contact sheet and the rechargeable battery are arranged on the bracket from top to bottom, and the control board is electrically connected to the first battery contact sheet; The charging assembly includes a second battery contact piece, a charging base, and a charging plate disposed on one side of the charging base, wherein the second battery contact piece is disposed on the top of the charging base, the charging plate is electrically connected to the second battery contact piece, and the charging plate is electrically connected to the control board in a contact manner; The first battery contact piece and the second battery contact piece are respectively connected to two ends of the rechargeable battery.

2. An electric toothbrush according to claim 1, characterized in that: The shell includes a handle shell, a button arranged on the outer surface of the handle shell and a bottom cover arranged at the bottom of the handle shell, the button is electrically connected to the control board; a bottom cover sealing ring is provided between the bottom cover and the handle shell.

3. An electric toothbrush according to claim 2, characterized in that: The charging base includes a top cover, a charging bottom cover and a bottom cover which are connected in sequence from top to bottom. The second battery contact piece is arranged on the top cover, and the charging plate is arranged on the charging bottom cover. A through hole is arranged at the center of the lower end surface of the charging bottom cover, and card slots are arranged at both ends of the through hole. The bottom cover is movably connected to the charging bottom cover through an embedded structure to close the through hole.

4. An electric toothbrush according to claim 2, characterized in that: The charging base includes a charging bracket, a charging bottom cover and a bottom cover connected in sequence from top to bottom; the second battery contact piece is arranged on the upper end surface of the charging bracket, and the charging plate is arranged on the charging bracket; a through hole is arranged at the center of the lower end surface of the charging bottom cover and card slots are arranged at both ends of the through hole, and the bottom cover is movably connected to the charging bottom cover through an embedded structure for closing the through hole.

5. An electric toothbrush according to claim 3 or 4, characterized in that: A buckle is provided on the outer wall of the charging bottom cover, and a limit slot is provided on the inner wall of the bottom cover. The charging bottom cover is rotatably connected to the bottom cover through the buckle and the limit slot; a charging seat sealing ring is provided between the charging bottom cover and the bottom cover.

6. An electric toothbrush according to claim 2, characterized in that: The movement assembly also includes a motor drive device, which is arranged on the bracket and located above the first battery contact piece, and the motor drive device is electrically connected to the control board; a top sealing ring is provided between the driving shaft of the motor drive device and the handle housing.

7. An electric toothbrush according to claim 1, characterized in that: The charging board includes a charging component and at least two contact terminals; the at least two contact terminals are electrically connected to the second battery contact piece and the charging component respectively, and the at least two contact terminals are both electrically connected to the back side of the control board in a contact manner.

8. An electric toothbrush according to claim 7, characterized in that: The charging component is a charging interface, and the charging interface is a USB interface, a DC interface or a contact point.

9. An electric toothbrush according to claim 7, characterized in that: The charging component is a wireless charging coil.

10. An electric toothbrush according to any one of claims 7 to 9, characterized in that: The contact terminal is a copper pin with an elastic structure.

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