Electric toothbrush

Abstract

The utility model discloses an electric toothbrush which comprises a brush handle and a power supply assembly, the brush handle comprises a handle cylinder, a motor and a main control board, the motor and the main control board are arranged in the handle cylinder, the motor is electrically connected with the main control board so as to work under the control of the main control board, and the motor is provided with a motor shaft extending out of the handle cylinder. The power supply assembly comprises a plurality of electric connection parts which are arranged at intervals in the axial direction of the motor shaft in an insulating mode, the electric connection parts are exposed out of the handle barrel and electrically connected with the main control board, and the motor shaft is suitable for being inserted into a brush head of the electric toothbrush so that the electric connection parts can be electrically connected with the brush head. According to the electric toothbrush disclosed by the embodiment of the utility model, the plurality of electric connection parts of the power supply component are arranged at intervals along the axial direction of the motor shaft and are insulated, so that a larger distance is formed among the plurality of electric connection parts under the condition that the size of the motor shaft is not changed, and the electric connection difficulty of the electric connection parts and the brush head is reduced; therefore, the assembly difficulty of the electric toothbrush is reduced, the size of the electric toothbrush is prevented from being increased, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cleaning equipment, in particular to an electric toothbrush. Background Art

[0002] In the related art, in order to use an electric toothbrush to better care for, clean or detect the oral cavity, the brush head of the electric toothbrush is usually set as an electronic brush head.

[0003] However, it is difficult to power the existing electronic brush heads, which increases the difficulty of assembling the electric toothbrush and reduces the assembly efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an electric toothbrush, which can reduce the difficulty of powering the brush head, ensure the working performance of the brush head, reduce the difficulty of assembling the electric toothbrush, and improve the assembly efficiency, thereby solving the technical problems of the difficulty of powering the brush head and the difficulty of assembling the electric toothbrush in the prior art.

[0005] An electric toothbrush according to an embodiment of the utility model comprises: a brush handle, the brush handle comprising a handle barrel and a motor and a main control board arranged in the handle barrel, the motor being electrically connected to the main control board to operate under the control of the main control board, the motor being provided with a motor shaft extending out of the handle barrel; and a power supply assembly, the power supply assembly comprising a plurality of electrical connection parts which are axially spaced and insulated along the motor shaft, the electrical connection parts being exposed from the handle barrel and electrically connected to the main control board, the motor shaft being suitable for being inserted into a brush head of the electric toothbrush so as to electrically connect the electrical connection parts to the brush head.

[0006] According to the electric toothbrush of the embodiment of the present invention, a power supply component is provided, and the electrical connection part of the power supply component is provided to be electrically connected to the brush head, so as to achieve the purpose of supplying power to the brush head, enrich the functions of the brush head, thereby achieving the enrichment of the functions of the electric toothbrush and improving the user experience; at the same time, because the motor shaft itself extends axially and has a certain extension length, by arranging the multiple electrical connection parts of the power supply component to be axially spaced and insulated along the motor shaft, it is possible to rationally utilize the axial space of the motor shaft, and achieve a larger distance between the multiple electrical connection parts without changing the size of the motor shaft, thereby reducing the difficulty of electrical connection between the multiple electrical connection parts and the brush head, that is, reducing the difficulty of assembling the electric toothbrush, and avoiding the increase in the radial size of the electric toothbrush due to the radial spacing of the multiple electrical connection parts along the motor shaft, further improving the user experience.

[0007] In some embodiments, the power supply assembly includes a plurality of power supply components and insulating components, at least two of the power supply components are nested, the insulating component is provided between the two mutually nested power supply components, and each of the power supply components is provided with the electrical connection portion.

[0008] In some embodiments, the motor shaft defines one of the power supply members.

[0009] In some embodiments, the motor shaft is a hollow shaft, and at least a portion of the power supply component other than the motor shaft is sleeved inside the motor shaft.

[0010] In some embodiments, the electrical connection portion is provided at the end of each power supply member.

[0011] In some embodiments, among the two power supply components nested in each other, the insulating component is fixed to the outer peripheral wall of the inner power supply component, one end of the power supply component is exposed from the insulating component to define the electrical connection portion, and the other end of the power supply component is electrically connected to the main control board.

[0012] In some embodiments, the insulating member includes a first part and a second part, the diameter of the first part is larger than the diameter of the second part to define a stop surface, and the stop surface is used to limit the insertion distance between the two power supply members that are sleeved with each other.

[0013] In some embodiments, the power supply includes a first shaft and a second shaft, the diameter of the first shaft is larger than the diameter of the second shaft, the end of the first shaft defines the electrical connection portion, and the end of the second shaft is exposed from the insulating member to be electrically connected to the main control board.

[0014] In some embodiments, in the radial direction of the motor shaft, outer diameters of at least two of the electrical connection portions are different.

[0015] In some embodiments, the motor shaft is a hollow shaft to define a wire space, and at least one of the electrical connection locations is electrically connected to the main control board via a wire passing through the wire space.

[0016] In some embodiments, the electric toothbrush further comprises a fixing member, wherein the fixing member cooperates with the wire space and the wire respectively to locate the position of the wire.

[0017] In some embodiments, the fixing member is a solidified colloid filled in the wire space.

[0018] In some embodiments, the fixing member is located at an end of the motor shaft facing away from the power supply assembly.

[0019] In some embodiments, the wire is connected to the power supply component by welding, and a fixing adhesive layer is wrapped at the connection between the wire and the power supply component.

[0020] In some embodiments, the length of the wire extending from the end of the motor shaft is greater than the distance between the end of the motor shaft and the main control board.

[0021] Additional aspects and advantages of the present invention will become apparent from the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 Schematic diagram of an electric toothbrush according to some embodiments of the present invention.

[0024] Figure 2 Exploded views of electric toothbrushes according to some embodiments of the present invention.

[0025] Figure 3 This is a front view of an electric toothbrush according to some embodiments of the present invention.

[0026] Figure 4 for Figure 3 Section view along line AA.

[0027] Figure 5 for Figure 4 A partial enlarged view of area Ⅰ in the middle.

[0028] Figure 6 Schematic diagram of power supply components of some embodiments of the present utility model.

[0029] Figure 7 This is a front view of the power supply assembly of some embodiments of the utility model.

[0030] Figure 8 for Figure 7 Section view along line BB.

[0031] Fig. 9 Exploded diagram of power supply components of some embodiments of the present invention.

[0032] Reference numerals:

[0033] 1000. Electric toothbrush;

[0034] 100. Brush handle;

[0035] 110. Handle cylinder;

[0036] 120, motor; 121, motor shaft; 1211, wire space; 1212, card slot;

[0037] 130, main control board;

[0038] 200, power supply component;

[0039] 210, power supply; 211, electrical connection part; 212, first shaft; 213, second shaft; 214, limit surface;

[0040] 220, insulating member; 221, first portion; 222, second portion; 223, stop surface;

[0041] 300, brush head; 310, accommodating cavity; 320, circuit board; 330, conductive part; 340, buckle. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] The electric toothbrush 1000 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0045] Combination Figure 1 and Figure 2 As shown, the electric toothbrush 1000 according to the embodiment of the present invention includes: a brush handle 100 and a power supply assembly 200.

[0046] Among them, combined Figure 3 and Figure 4As shown, the brush handle 100 includes a handle barrel 110, a motor 120 and a main control board 130. The motor 120 and the main control board 130 are arranged in the handle barrel 110. The motor 120 is electrically connected to the main control board 130 to work under the control of the main control board 130. The motor 120 is provided with a motor shaft 121 extending out of the handle barrel 110. Here, it means that the motor 120 has a motor shaft 121, and the motor shaft 121 extends out of the handle barrel 110 so that at least part of the motor shaft 121 is arranged outside the handle barrel 110. Since the electric toothbrush 1000 has a brush head 300 (the specific structure of the brush head 300 can be seen in Figure 1 , Figure 2 or Figure 3 ), so that it is convenient to extend the motor shaft 121 into the brush head 300, so as to realize the connection between the brush handle 100 and the brush head 300. After the motor 120 is electrically connected to the main control board 130, the motor 120 can work under the control of the main control board 130, so as to realize the transmission of the power of the motor 120 to the brush head 300, so that the brush head 300 can clean the teeth through movement.

[0047] By arranging both the motor 120 and the main control board 130 in the handle tube 110 , the motor 120 is arranged close to the main control board 130 , so as to realize electrical connection between the motor 120 and the main control board 130 , and the main control board 130 controls the motor 120 to work.

[0048] It should be noted that in order to enrich the functions of the electric toothbrush 1000 (such as using the electric toothbrush 1000 to sterilize, whiten or reduce inflammation of teeth, etc.), it is necessary to set a power supply component 200 in the electric toothbrush 1000 so as to use the power supply component 200 to supply power to the brush head 300.

[0049] Combination Figure 4 and Figure 5 As shown, the power supply assembly 200 includes a plurality of electrical connection parts 211, and the plurality of electrical connection parts 211 are spaced apart and insulated along the axial direction of the motor shaft 121. The electrical connection parts 211 are exposed from the handle tube 110 and are electrically connected to the main control board 130. The motor shaft 121 is suitable for being inserted into the brush head 300 of the electric toothbrush 1000 so that the electrical connection parts 211 are electrically connected to the brush head 300. What is meant here is that the electrical connection part 211 of the power supply component 200 is electrically connected to the main control board 130 provided in the handle tube 110, and the electrical connection part 211 is exposed from the handle tube 110. When the motor shaft 121 is inserted into the brush head 300 of the electric toothbrush 1000, the electrical connection part 211 is electrically connected to the brush head 300, thereby realizing the electrical connection between the main control board 130 and the brush head 300, so as to enrich the function of the brush head 300, so that the brush head 300 can be used to sterilize, whiten or reduce inflammation of the teeth, etc., and at the same time, it can also reduce the difficulty of connecting the electrical connection part 211 and the brush head 300.

[0050] It should also be noted that the electrical connection between the electrical connection part 211 and the brush head 300 mentioned here is different from the electrical connection between the motor 120 and the main control board 130 mentioned above, wherein the electrical connection part 211 and the brush head 300 is electrically connected as long as the main control board 130 is used to supply power to the brush head 300, so that the brush head 300 can be used to sterilize, whiten or reduce inflammation of the teeth; the electrical connection between the motor 120 and the main control board 130 is electrically connected as long as the main control board 130 is used to supply power to the motor 120, so that the power of the motor 120 can be transmitted to the brush head 300, and at this time the brush head 300 can clean the teeth through movement.

[0051] In some embodiments, electrical functional parts are provided on the brush head 300, and the electrical connection portion 211 is electrically connected to the electrical functional parts of the brush head 300, so that the electrical functional parts can be controlled by the power supply component 200, so that the electrical functional parts can take effect, so as to better care for, clean or detect the oral cavity, etc., thereby achieving the purpose of enriching the functions of the brush head 300.

[0052] The number of electrical functional components may be one or more, and the electrical functional components include but are not limited to light-emitting components, electrodes, cameras, and the like.

[0053] Optionally, when the electrical functional component is a light-emitting component, after the electrical connection portion 211 is electrically connected to the electrical functional component, the light-emitting component can emit a blue light beam with a wavelength of 480mm-520mm. The blue light can destroy the DNA and RNA structures of bacteria and viruses, thereby achieving a sterilization effect. At the same time, the blue light can also whiten teeth. When the user needs to whiten their teeth, a special whitening agent composed mainly of hydrogen peroxide and silica can be applied to the bristles of the brush head 300. At this time, when the blue light is irradiated on the teeth and the whitening agent, an oxidation-reduction reaction will occur on the teeth, thereby achieving the effect of whitening the teeth. In addition, the light emitted by the light-emitting component can also be used for lighting, catalyzing the ingredients of toothpaste, anti-inflammatory in the oral cavity, promoting blood circulation, etc. There are no excessive restrictions here, so as to achieve the purpose of sterilizing, whitening or anti-inflammatory of teeth using electrical functional components.

[0054] Optionally, when the electrical functional component is an electrode, the electrode can be formed as a radio frequency electrode. In this way, when the electrical connection portion 211 is electrically connected to the electrical functional component, the radio frequency electrode can emit a radio frequency current, thereby generating charged particles to decompose tooth stains or decompose dental plaque, tartar, etc. Due to the pervasive nature of radio frequency, the radio frequency current can reach blind spots of ordinary toothbrushes such as gaps between teeth and gum lines, thereby meeting the need to clean blind spots.

[0055] Of course, the electrode can be formed as an electrolytic electrode. When the electrical connection part 211 is electrically connected to the electrical functional part, the electrolytic electrode can ionize water or toothpaste to produce cleaning molecules and use electricity to adsorb the cleaning molecules to the teeth. The electrolytic electrode can also be used to massage the gums, reduce inflammation, and promote blood circulation.

[0056] In other embodiments, the electrical functional component is a heating wire, which can be used to atomize water or toothpaste to promote the release of cleaning factors in the toothpaste, and can also dry and sterilize the bristles.

[0057] Optionally, when the electrical functional component is a camera, after the electrical connection portion 211 is electrically connected to the electrical functional component, the electrical functional component can be used to photograph the internal state of the oral cavity, making it convenient for the user to observe the condition inside the oral cavity, thereby more effectively cleaning the teeth, tongue, and gaps between teeth in the oral cavity, thereby improving the working performance of the electric toothbrush 1000.

[0058] In some embodiments, the electrical functional component may also be a thermal imager, which is used to form a photoelectric thermal image. When the user uses the electric toothbrush 1000, a photoelectric thermal image of the oral cavity can be formed, thereby facilitating the judgment of the health of the oral cavity.

[0059] At the same time, since the motor shaft 121 itself extends axially and has a certain extension length, by arranging the multiple electrical connection parts 211 of the power supply assembly 200 to be spaced and insulated along the axial direction of the motor shaft 121, it is possible to rationally utilize the axial space of the motor shaft 121, so that a larger distance between the multiple electrical connection parts 211 is achieved without changing the size of the motor shaft 121, thereby reducing the difficulty of electrical connection between the multiple electrical connection parts 211 and the brush head 300, that is, reducing the difficulty of assembling the electric toothbrush 1000, and since there is a large distance between the multiple electrical connection parts 211, it is also possible to avoid the formation of electrical connections between the multiple electrical connection parts 211 to a certain extent, thereby ensuring the working performance of the electric toothbrush 1000.

[0060] In addition, by arranging multiple electrical connection parts 211 to be axially spaced along the motor shaft 121, compared with arranging multiple electrical connection parts 211 to be radially spaced along the motor shaft 121, the radial size of the electric toothbrush 1000 can be effectively reduced, making it easier for users to hold the electric toothbrush 1000 and improving the user experience.

[0061] That is to say, the electric toothbrush 1000 of the present application can ensure a large distance between multiple electrical connection parts 211 without increasing its own radial size, so that the electric toothbrush 1000 has the advantages of low assembly difficulty and small size.

[0062] It can be seen from the above structure that the electric toothbrush 1000 of the embodiment of the utility model is provided with a power supply component 200, and the electrical connection part 211 of the power supply component 200 is electrically connected to the brush head 300 and the main control board 130 respectively, so as to enrich the functions of the brush head 300, thereby enriching the functions of the electric toothbrush 1000 and improving the user experience.

[0063] At the same time, by arranging the multiple electrical connection parts 211 of the power supply assembly 200 to be axially spaced and insulated along the motor shaft 121, it is ensured that there is a large distance between the multiple electrical connection parts 211 without increasing the radial size of the electric toothbrush 1000, thereby reducing the difficulty of assembling the electric toothbrush 1000 and facilitating reducing the radial size of the electric toothbrush 1000.

[0064] It can be understood that compared with the prior art, the present application sets the multiple electrical connection parts 211 of the power supply assembly 200 to be axially spaced along the motor shaft 121, ensuring that there is a large distance between the multiple electrical connection parts 211 without increasing the radial size of the electric toothbrush 1000, thereby reducing the difficulty of assembling the electric toothbrush 1000, reducing the radial size of the electric toothbrush 1000, and improving the user experience.

[0065] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0066] In some embodiments, in the radial direction of the motor shaft 121, the outer peripheral wall of each electrical connection part 211 does not exceed the outer peripheral wall of the motor shaft 121. This is to avoid the electrical connection part 211 hindering the insertion of the motor shaft 121 when the motor shaft 121 is inserted into the brush head 300 of the electric toothbrush 1000, thereby reducing the difficulty of assembling the motor shaft 121 and the brush head 300, and making the electrical connection part 211 and the brush head 300 effectively electrically connected, so as to facilitate the use of the main control board 130 and the power supply component 200 to cooperate in controlling the brush head 300 and enrich the functions of the brush head 300.

[0067] Of course, in some other embodiments, in the radial direction of the motor shaft 121, the outer peripheral wall of the electrical connection part 211 close to the motor shaft 121 may also exceed the outer peripheral wall of the motor shaft 121, but it shall not hinder the motor shaft 121 from being inserted into the brush head 300 of the electric toothbrush 1000, so that the motor shaft 121 can be effectively inserted into the brush head 300 of the electric toothbrush 1000, so as to facilitate the use of the motor shaft 121 to control the vibration of the brush head 300 to ensure the working performance of the brush head 300, and enable the electrical connection part 211 and the brush head 300 to be effectively electrically connected.

[0068] In some embodiments, in combination Figure 4 and Figure 5 As shown, a receiving cavity 310 with an opening at one end is formed in the brush head 300, and the motor shaft 121 is inserted into the receiving cavity 310 of the brush head 300 through the opening, so as to insert the motor shaft 121 into the brush head 300, thereby facilitating the use of the motor shaft 121 to control the vibration of the brush head 300 to ensure the working performance of the brush head 300.

[0069] Optionally, the outer diameter of each electrical connection portion 211 is not greater than the diameter of the opening, so as to prevent the electrical connection portion 211 from obstructing the motor shaft 121 from being inserted into the brush head 300 .

[0070] In some embodiments, in combination Figure 4 and Figure 5 As shown, the brush head 300 includes a circuit board 320 and a plurality of conductive parts 330. The circuit board 320 and the conductive parts 330 are both arranged in a receiving cavity 310. The circuit board 320 is electrically connected to the electrical functional parts. The plurality of conductive parts 330 correspond one to one to the plurality of electrical connection parts 211. The conductive parts 330 are electrically connected to the circuit board 320 and the electrical connection parts 211, respectively, so as to realize the electrical connection between the electrical connection parts 211 and the electrical functional parts, reduce the difficulty of electrical connection between the electrical connection parts 211 and the electrical functional parts, and enable the electrical functional parts to function, so as to achieve the purpose of enriching the functions of the brush head 300.

[0071] Among them, by setting up the circuit board 320, the electrical functional parts can be integrated according to the needs to realize the multi-function of the brush head 300.

[0072] In some embodiments, Figure 5 As shown, a buckle 340 is provided on the brush head 300, and a slot 1212 matching with the buckle 340 is provided on the motor shaft 121. The buckle 340 is snapped into the slot 1212 to achieve the matching connection between the brush head 300 and the motor shaft 121, thereby achieving the connection between the brush handle 100 and the brush head 300, thereby ensuring the working performance of the electric toothbrush 1000.

[0073] At the same time, by utilizing the buckle 340 and the slot 1212 to cooperate with each other to achieve the matching connection between the brush head 300 and the motor shaft 121, the brush head 300 and the motor shaft 121 can also form a detachable connection, that is, the brush handle 100 and the brush head 300 can form a detachable connection, which is convenient for replacing the brush head 300, thereby reducing the difficulty of replacing the brush head 300.

[0074] In some embodiments, Figure 5 As shown, the slot 1212 on the motor shaft 121 is exposed on the handle tube 110 and is arranged between the electrical connection part 211 and the handle tube 110. In this way, when the brush handle 100 and the brush head 300 are connected in place through the buckle 340 and the slot 1212, the multiple electrical connection parts 211 can be located in the accommodating cavity 310 of the brush head 300 and away from the opening of the accommodating cavity 310. Because the electric toothbrush 1000 is usually used in a watery and humid environment, this can to a certain extent prevent water entering the accommodating cavity 310 from the opening and flowing to the multiple electrical connection parts 211, thereby preventing the multiple electrical connection parts 211 from short-circuiting when supplying power to the brush head 300, thereby ensuring the working performance of the electric toothbrush 1000.

[0075] In some embodiments, the inner wall of the accommodating cavity 310 and the area near the opening of the accommodating cavity 310 are sealed to prevent water from flowing into the accommodating cavity 310 , thereby preventing water from flowing to the multiple electrical connection parts 211 , thereby ensuring the working performance of the electric toothbrush 1000 .

[0076] The sealing process mentioned here may be the provision of a sealing ring or the application of glue for sealing.

[0077] In some embodiments, in combination Figure 5-Figure 9 As shown, the power supply assembly 200 includes a plurality of power supply members 210 and an insulating member 220, at least two power supply members 210 are arranged in a nested manner, an insulating member 220 is arranged between the two mutually nested power supply members 210, and each power supply member 210 is provided with an electrical connection portion 211. That is, the two mutually nested power supply members 210 in the power supply assembly 200 are isolated by the insulating member 220 to achieve insulation, thereby avoiding electrical connection between two adjacent power supply members 210, so as to ensure the working performance of the power supply assembly 200.

[0078] At the same time, by setting an electrical connection part 211 on each power supply 210, since the power supply component 200 includes multiple power supply components 210, the power supply component 200 can include multiple electrical connection parts 211, and the multiple electrical connection parts 211 are electrically connected to the brush head 300, so as to facilitate the use of the power supply component 200 to supply power to the brush head 300, thereby enriching the function of the brush head 300.

[0079] It should be noted that the power supply assembly 200 includes at least two power supply members 210 , that is, includes at least two electrical connection parts 211 , and the two electrical connection parts 211 are respectively connected to the positive electrode and the negative electrode on the brush head 300 to realize power supply to the brush head 300 .

[0080] In some embodiments, when it is necessary to realize the linkage of the control signal of the electrical functional component with the main control board 130 to ensure that the brush head 300 can receive the signal input by the main control board 130 or the brush head 300 can output the signal to the main control board 130, for example: when the brush head 300 feeds back the detection information to the main control board 130, a power supply 210 can be added accordingly to enable the linkage of the control signal of the electrical functional component with the main control board 130.

[0081] It should also be noted that for each additional power supply component 210, an additional conductive component 330 and insulating component 220 are required. The insulating component 220 is used to ensure that the two power supply components 210 that are nested with each other can be effectively insulated, and the conductive component 330 is used to ensure that the power supply component 210 can be effectively electrically connected to the electrical functional component.

[0082] In some embodiments, the insulating member 220 is an insulating sleeve, which is disposed between two power supply members 210 that are nested with each other, so as to reduce the difficulty of matching the power supply member 210 with the insulating member 220, thereby avoiding the two power supply members 210 that are nested with each other from forming an electrical connection, that is, to enable effective insulation between the two power supply members 210 that are nested with each other, thereby ensuring the working performance of the power supply members 210.

[0083] In some embodiments, in combination Figure 5 and Figure 6 As shown, the motor shaft 121 defines one of the power supply members 210. That is to say, among the multiple power supply members 210, one of the power supply members 210 is defined by the motor shaft 121, so that the setting of one power supply member 210 can be omitted, so as to reduce the manufacturing cost of the power supply assembly 200, reduce the number of nested layers of the power supply assembly 200, reduce the assembly difficulty between the multiple power supply members 210, improve the assembly efficiency of the brush handle 100, and avoid increasing the radial size of the brush handle 100 due to the setting of a large number of power supply members 210, so as to facilitate the user to hold the electric toothbrush 1000 and improve the user experience.

[0084] It should be noted that, since the brush head 300 is powered by low voltage, when the motor shaft 121 is set to form the power supply 210, the normal operation of the motor shaft 121 itself will not be affected by the power supply of the motor shaft 121, that is, the vibration of the brush head 300 driven by the motor shaft 121 will not be affected, so as to ensure the working performance of the brush head 300.

[0085] In some embodiments, the motor shaft 121 is made of a metal material, such as steel, so that the motor shaft 121 is formed into one of the power supply members 210 .

[0086] In some embodiments, in combination Figure 5 , Figure 7 and Figure 8 As shown, the motor shaft 121 is a hollow shaft, and at least part of the power supply 210 except the motor shaft 121 is sleeved inside the motor shaft 121. Here, it means that among the multiple power supply members 210, except for the power supply member 210 defined by the motor shaft 121, at least part of the remaining power supply members 210 are sleeved inside the motor shaft 121, that is, the motor shaft 121 is arranged at the outermost layer of the power supply assembly 200, so as to realize the utilization of the space inside the motor shaft 121, avoid the power supply member 210 occupying the space radially outside the motor shaft 121, thereby avoiding the increase of the radial size of the brush handle 100, and the motor shaft 121 can also be used to protect the remaining power supply members 210, prolong the service life of the power supply member 210, thereby prolonging the service life of the electric toothbrush 1000.

[0087] In some embodiments, Figure 8As shown, each power supply 210 is provided with an electrical connection portion 211 at its end. Thus, each power supply 210 can be electrically connected to the brush head 300, and the difficulty of electrical connection between the power supply 210 and the brush head 300 is reduced, so that it is convenient to use the power supply assembly 200 to supply power to the brush head 300, thereby enriching the functions of the brush head 300.

[0088] In some embodiments, each power supply 210 is made of metal material. In this way, after the power supply 210 is formed, while ensuring that the power supply 210 can conduct electricity, an electrical connection portion 211 can be formed at the end of the power supply 210, thereby avoiding the need to set other structural components at the end of the power supply 210 to form the electrical connection portion 211, thereby reducing the difficulty of forming the electrical connection portion 211, that is, reducing the difficulty of forming the power supply 210.

[0089] In some embodiments, in combination Figure 6 , Figure 7 and Figure 8 As shown, in the two power supply members 210 that are mutually nested, the outer peripheral wall of the inner power supply member 210 is fixed with an insulating member 220, one end of the power supply member 210 is exposed from the insulating member 220 to define an electrical connection portion 211, and the other end of the power supply member 210 is electrically connected to the main control board 130. That is to say, when the insulating member 220 is fixed on the outer peripheral wall of the power supply member 210, one end of the power supply member 210 is exposed from the insulating member 220 to define an electrical connection portion 211, so that the electrical connection portion 211 is formed at the end of the power supply member 210, so as to reduce the difficulty of forming the electrical connection portion 211, and facilitate the electrical connection between the power supply member 210 and the brush head 300, and at the same time, the other end of the power supply member 210 is electrically connected to the main control board 130, and the power supply member 210 can be used to realize the electrical connection between the brush head 300 and the main control board 130, so as to facilitate the use of the main control board 130 to control the brush head 300, so as to achieve the purpose of enriching the functions of the brush head 300.

[0090] That is to say, an electrical connection portion 211 is formed at one end of the power supply 210, and one end of the power supply 210 is electrically connected to the brush head 300 through the electrical connection portion 211, and the other end of the power supply 210 is electrically connected to the main control board 130, thereby utilizing the power supply 210 to realize the electrical connection between the brush head 300 and the main control board 130.

[0091] At the same time, by fixing the insulating part 220 on the outer peripheral wall of the inner power supply part 210 of the two power supply parts 210 that are nested with each other, the insulating part 220 can be fixed between the two power supply parts 210 that are nested with each other, so as to avoid the two power supply parts 210 that are nested with each other from forming an electrical connection, thereby avoiding a short circuit, and ensuring that the main control board 130 can effectively control the brush head 300, so as to achieve the purpose of enriching the functions of the brush head 300.

[0092] It should be noted that, through the above-mentioned arrangement, among the multiple power supply components 210 that are sequentially nested, except for the outer peripheral wall of the power supply component 210 located on the outermost side, the outer peripheral walls of the other power supply components 210 are all provided with insulating components 220, so that insulation can be achieved between the two power supply components 210 that are nested with each other, avoiding the formation of electrical connection between the two adjacent power supply components 210, so as to ensure the working performance of the power supply assembly 200.

[0093] In a specific example, when the motor shaft 121 defines one of the power supply components 210 , insulating components 220 are disposed on the outer circumferential walls of the other power supply components 210 except for the outer circumferential wall of the motor shaft 121 .

[0094] In some embodiments, the insulating member 220 is a heat shrink tubing. In this way, during the assembly process of the insulating member 220, the high-temperature shrinkage property of the heat shrink tubing can be used to fix the insulating member 220 to the outer wall of the power supply member 210, so as to reduce the difficulty of fixing the insulating member 220 and the power supply member 210, and improve the fixing strength of the insulating member 220 and the power supply member 210, so that the insulating member 220 can be stably fixed on the periphery of the power supply member 210, thereby facilitating the use of the insulating member 220 to achieve insulation matching between two power supply members 210 that are nested with each other.

[0095] In some embodiments, in combination Figure 8 and Fig. 9 As shown, the insulating member 220 includes a first portion 221 and a second portion 222. The diameter of the first portion 221 is larger than the diameter of the second portion 222 to define a stop surface 223. The stop surface 223 is used to define the insertion distance between the two mutually sleeved power supply members 210. It is avoided that the power supply member 210 located on the outside completely covers the outer periphery of the power supply member 210 located on the inside among the two adjacent power supply members 210, so that the electrical connection parts 211 on the two adjacent power supply members 210 can be spaced along the axial direction of the motor shaft 121, and a plurality of conductive structures spaced and distributed in the axial direction are formed in sequence, thereby reducing the difficulty of electrical connection between the plurality of electrical connection parts 211 and the brush head 300.

[0096] In some embodiments, Figure 8 As shown, among the two power supply components 210 that are nested with each other, one end of the power supply component 210 located on the outside stops on the stop surface 223, so as to achieve the purpose of using the stop surface 223 to limit the insertion distance between the two power supply components 210 that are nested with each other, so that multiple electrical connection parts 211 can be distributed at intervals in the axial direction of the motor shaft 121.

[0097] At the same time, by using the stop surface 223 to limit the insertion distance between two mutually nested power supply components 210, it is also helpful to quickly determine the installation position between two adjacent power supply components 210, thereby reducing the difficulty of assembling the power supply component 200.

[0098] In the description of the present utility model, features defined as “first” or “second” may explicitly or implicitly include one or more such features, and are used to distinguish and describe the features, without any distinction in order or importance.

[0099] In some embodiments, Fig. 9 As shown, the power supply 210 includes a first shaft 212 and a second shaft 213. The diameter of the first shaft 212 is greater than the diameter of the second shaft 213. The end of the first shaft 212 defines an electrical connection portion 211. The end of the second shaft 213 is exposed to the insulating member 220 to be electrically connected to the main control board 130. Here, it means that the power supply 210 is in the shape of a shaft and the shaft has two parts with different diameters. The insulating member 220 is coated on the outer periphery of the power supply 210. The insulating member 220 is exposed at both ends of the power supply 210. One end of the power supply 210 is used to be electrically connected to the brush head 300, and the other end is used to be electrically connected to the main control board 130, so as to realize the electrical connection between the main control board 130 and the brush head 300.

[0100] In some embodiments, in combination Figure 8 and Fig. 9 As shown, the insulating member 220 is wrapped around the outer periphery of the second shaft 213 to expose the first shaft 212 from the insulating member 220 , thereby facilitating the formation of the electrical connection portion 211 .

[0101] In some embodiments, in combination Figure 8 and Fig. 9 As shown, the first shaft 212 and the second shaft 213 cooperate to define a limit surface 214, and one end of the insulating member 220 stops on the limit surface 214 to limit the installation position of the insulating member 220, reduce the difficulty of installing the insulating member 220, and at the same time enable the first shaft 212 to expose the insulating member 220 to form an electrical connection portion 211.

[0102] In some embodiments, Figure 8 As shown, in the radial direction of the motor shaft 121, the outer diameters of at least two electrical connection parts 211 are different, so as to avoid interference between two adjacent electrical connection parts 211, thereby avoiding mutual interference when multiple electrical connection parts 211 are electrically connected to the brush head 300 to a certain extent, and reducing the difficulty of electrical connection between multiple electrical connection parts 211 and the brush head 300.

[0103] In some embodiments, in combination Figure 4 , Figure 5 and Figure 8As shown, the motor shaft 121 is a hollow shaft to define a wire space 1211, and at least one electrical connection part 211 is electrically connected to the main control board 130 through a wire passing through the wire space 1211. This realizes the electrical connection between the electrical connection part 211 and the main control board 130, that is, realizes the electrical connection between the power supply 210 and the main control board 130, and reduces the difficulty of electrical connection between the power supply 210 and the main control board 130.

[0104] At the same time, by defining a wire space 1211 in the motor shaft 121 and passing the wire through the wire space 1211, the wire can be routed in the motor shaft 121. Since the power supply 210 with the electrical connection portion 211 is arranged in the motor shaft 121, it can avoid the wire extending outside the motor shaft 121, reducing the difficulty of routing the wire, thereby reducing the difficulty of electrical connection between the power supply 210 and the main control board 130. At the same time, the motor shaft 121 can also be used to protect the wire, extend the service life of the wire, and improve the safety of the wire.

[0105] That is to say, the motor shaft 121 of the present application is a hollow shaft, and the power supply 210 and the wires connecting the power supply 210 are both arranged inside the motor shaft 121 to achieve rational utilization of the space inside the motor shaft 121 .

[0106] It should be noted that there are multiple wires, and the multiple wires correspond one-to-one to the multiple power supply members 210 .

[0107] In some embodiments, one end of the wire is connected to the end of the second shaft 213 of the power supply 210, and the other end of the wire is electrically connected to the main control board 130, thereby realizing the electrical connection between the electrical connection part 211 and the main control board 130, that is, realizing the electrical connection between the main control board 130 and the brush head 300, which is convenient for using the main control board 130 to control the brush head 300 and enrich the functions of the brush head 300.

[0108] In some embodiments, the wire is welded to the power supply assembly 200, and a fixed adhesive layer is wrapped at the connection between the wire and the power supply assembly 200. It can also be understood here that one end of the wire is welded to the end of the second shaft 213 of the power supply member 210 to achieve electrical connection between the wire and the power supply assembly 200, so as to facilitate the use of the power supply assembly 200 to achieve electrical connection between the main control board 130 and the brush head 300.

[0109] At the same time, by wrapping a fixed rubber layer at the connection between the wire and the power supply component 200, the connection between the wire and the power supply component 200 is strengthened to avoid failure or poor contact of the connection between the wire and the power supply component 200 due to the high-frequency movement of the motor shaft 121 during operation, thereby improving the connection strength between the wire and the power supply component 200 and ensuring the reliability of the connection between the wire and the power supply component 200.

[0110] In some embodiments, the connection between the wire and the main control board 130 is wrapped with a fixed adhesive layer to strengthen the connection between the wire and the main control board 130, avoid the problem of failure or poor contact between the wire and the main control board 130 due to the high-frequency movement of the motor shaft 121 during operation, thereby improving the connection strength between the wire and the main control board 130 and ensuring the reliability of the connection between the wire and the main control board 130, so that the main control board 130 can form a stable electrical connection with the power supply component 200, so as to control the brush head 300 using the main control board 130.

[0111] In some embodiments, the electric toothbrush 1000 further includes a fixing member (not shown in the figure), which cooperates with the wire space 1211 and the wire to locate the position of the wire. The position stability of the wire is improved, and the motor shaft 121 is prevented from rubbing against the wire when generating high-frequency movement, thereby avoiding damage to the wire and extending the service life of the wire. At the same time, it can also avoid the failure of the connection between the wire and the power supply component 200 and the main control board 130 due to the shaking of the wire, thereby ensuring the connection stability between the wire and the power supply component 200 and the main control board 130.

[0112] In some embodiments, the wire can be formed as a non-flexible wire, such as a metal wire that can be shaped, so that there is a gap between the wire and the motor shaft 121 in the wire space 1211 to avoid friction between the wire and the motor shaft 121 when the motor shaft 121 generates high-frequency movement, thereby extending the service life of the wire and ensuring the connection stability between the wire and the power supply component 200 and the main control board 130.

[0113] In some embodiments, when the conductor is a metal wire that can be shaped, in order to ensure the insulation of the conductor, an insulating glue may be provided on the outer periphery of the metal wire.

[0114] In some embodiments, the fixing member is a solidified colloid filled in the wire space 1211. In this way, the position of the wire can be positioned by using the solidified colloid to improve the position stability of the wire, thereby ensuring the connection stability between the wire and the power supply component 200 and the main control board 130, and at the same time, it can also play a role in isolating the wire from the motor shaft 121, avoiding the friction between the motor shaft 121 and the wire when generating high-frequency movement, thereby achieving the purpose of protecting the wire and extending the service life of the wire.

[0115] It should be noted that when the fixing member is a solidified colloid filled in the wire space 1211, there is no need to wrap a separate fixed glue layer at the connection between the wire and the power supply component 200. When the solidified colloid is filled in the wire space 1211, part of the solidified colloid can be wrapped at the connection between the wire and the power supply component 200, so that the connection point between the wire and the power supply component 200 is fixed, thereby avoiding the connection point between the wire and the power supply component 200 from breaking or poor contact due to the high-frequency movement of the motor shaft 121.

[0116] In some embodiments, when the motor shaft 121 defines one of the power supply components 210, during the assembly of multiple power supply components 210, a wire can be first welded to the end of the power supply component 210 located on the inner side, and an insulating component 220 can be sleeved on the outer periphery of the power supply component 210 located on the inner side. Subsequently, the power supply component 210 located on the inner side is assembled in the power supply component 210 located on the outer side, and the remaining power supply components 210 except the motor shaft 121 are arranged in the motor shaft 121. Finally, the solidified colloid is filled in the wire space 1211 of the motor shaft 121 to realize the assembly of the power supply component 200, and an insulating component 220 is provided between the two power supply components 210 that are sleeved with each other to ensure the working performance of the power supply component 200.

[0117] In some embodiments, the fixing member is located at the end of the motor shaft 121 away from the power supply assembly 200. That is to say, it is not limited to setting the fixing member as a solidified colloid filled in the wire space 1211, and the fixing member can also be set at the end of the motor shaft 121 away from the power supply assembly 200, so as to facilitate fixing the part where the wire is led out from the motor shaft 121, so as to improve the position stability of the wire, thereby ensuring the connection stability of the wire with the power supply assembly 200 and the main control board 130, and avoiding the friction between the motor shaft 121 and the wire when generating high-frequency movement, so as to achieve the purpose of protecting the wire and extend the service life of the wire.

[0118] In some embodiments, the fixing member is a sleeve sleeved around the outer circumference of the wire.

[0119] In some embodiments, the length of the wire extending from the end of the motor shaft 121 is greater than the distance between the end of the motor shaft 121 and the main control board 130. This ensures that the wire has a certain amount of movement outside the motor shaft 121, thereby preventing the motor shaft 121 from pulling the wire when generating high-frequency movement, thereby avoiding damage to the wire, thereby extending the service life of the wire, and preventing the wire from shaking and causing the connection between the wire and the main control board 130 to fail, thereby ensuring the reliability of the connection between the wire and the main control board 130.

[0120] The electric toothbrush 1000 of the present application will be described in detail below with reference to the accompanying drawings in the specification.

[0121] Combination Figure 1 , Figure 2 and Figure 3 As shown, the electric toothbrush 1000 includes a brush handle 100 , a power supply assembly 200 and a brush head 300 .

[0122] Among them, Figure 4As shown, the brush handle 100 includes a handle tube 110 , a motor 120 and a main control board 130 . The motor 120 and the main control board 130 are disposed in the handle tube 110 . The motor 120 is electrically connected to the main control board 130 . The motor 120 is provided with a motor shaft 121 extending out of the handle tube 110 .

[0123] Combination Figure 5-Figure 9 As shown, the power supply assembly 200 includes a plurality of power supply components 210 and an insulating component 220. The motor shaft 121 defines one of the power supply components 210. The motor shaft 121 is a hollow shaft. At least a portion of the power supply components 210 other than the motor shaft 121 is disposed in the motor shaft 121. The power supply components 210 are nested between two adjacent power supply components 210. In the two power supply components 210 nested with each other, the insulating component 220 is fixed to the outer peripheral wall of the power supply component 210 located on the inner side.

[0124] Combination Figure 8 and Fig. 9 As shown, the power supply 210 includes a first shaft 212 and a second shaft 213, the diameter of the first shaft 212 is larger than the diameter of the second shaft 213, the end of the first shaft 212 is exposed from the insulating member 220 to define an electrical connection portion 211, the end of the second shaft 213 is exposed from the insulating member 220, and a plurality of electrical connection portions 211 are spaced apart and insulated along the axial direction of the motor shaft 121. In the radial direction of the motor shaft 121, the outer diameters of the plurality of electrical connection portions 211 are different, the electrical connection portion 211 is exposed from the handle tube 110, and the motor shaft 121 is suitable for inserting into the brush head 300 to electrically connect the electrical connection portion 211 to the brush head 300.

[0125] like Figure 8 As shown, the motor shaft 121 is a hollow shaft to define a wire space 1211, a wire is passed through the wire space 1211, one end of the wire is electrically connected to the end of the second shaft 213, and the other end of the wire is welded to the main control board 130 to achieve electrical connection between the electrical connection part 211 and the main control board 130, and the wire space 1211 is filled with a solidifying colloid, which is used to locate the position of the wire, and the length of the wire extending from the end of the motor shaft 121 is greater than the distance between the end of the motor shaft 121 and the main control board 130.

[0126] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0127] Figure 8Two power supplies 210 are shown for illustrative purposes, but after reading the above technical solution, ordinary technicians can obviously understand that the solution can be applied to the technical solution of three or more power supplies 210, which also falls within the protection scope of the present utility model.

[0128] Other components of the electric toothbrush 1000 according to the embodiment of the present invention, such as the specific structure and working principle of the motor 120, are known to those skilled in the art and will not be described in detail here.

[0129] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0130] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electric toothbrush, It is characterized in that include: A brush handle, the brush handle comprising a handle barrel, a motor and a main control board arranged in the handle barrel, the motor being electrically connected to the main control board to work under the control of the main control board, the motor being provided with a motor shaft extending out of the handle barrel; and, A power supply assembly, comprising a plurality of electrical connection parts spaced axially and insulated along the motor shaft, wherein the electrical connection parts are exposed from the handle tube and are electrically connected to the main control board, and the motor shaft is suitable for being inserted into the brush head of the electric toothbrush so that the electrical connection parts are electrically connected to the brush head.

2. The electric toothbrush according to claim 1, It is characterized in that The power supply assembly includes a plurality of power supply components and insulating components, at least two of the power supply components are nested, the insulating component is arranged between the two mutually nested power supply components, and each of the power supply components is provided with the electrical connection portion.

3. The electric toothbrush according to claim 2, It is characterized in that The motor shaft defines one of the power supply members.

4. The electric toothbrush according to claim 3, It is characterized in that The motor shaft is a hollow shaft, and at least a portion of the power supply component except the motor shaft is sleeved inside the motor shaft.

5. The electric toothbrush according to claim 2, It is characterized in that The end of each power supply member is provided with the electrical connection portion.

6. The electric toothbrush according to claim 2, It is characterized in that In the two power supply components nested with each other, the insulating component is fixed to the outer peripheral wall of the inner power supply component, one end of the power supply component is exposed from the insulating component to define the electrical connection portion, and the other end of the power supply component is electrically connected to the main control board.

7. The electric toothbrush according to claim 6, It is characterized in that The insulating member includes a first part and a second part. The diameter of the first part is greater than the diameter of the second part to define a stop surface, and the stop surface is used to limit the insertion distance between the two power supply members that are sleeved with each other.

8. The electric toothbrush according to claim 6, It is characterized in that The power supply member includes a first shaft and a second shaft, the diameter of the first shaft is larger than the diameter of the second shaft, the end of the first shaft defines the electrical connection portion, and the end of the second shaft is exposed from the insulating member to be electrically connected to the main control board.

9. The electric toothbrush according to claim 2, It is characterized in that In the radial direction of the motor shaft, outer diameters of at least two of the electrical connection locations are different.

10. The electric toothbrush according to any one of claims 1 to 9, It is characterized in that The motor shaft is a hollow shaft to define a wire space, and at least one of the electrical connection parts is electrically connected to the main control board via a wire passing through the wire space.

11. The electric toothbrush according to claim 10, It is characterized in that It also includes a fixing piece, which cooperates with the wire space and the wire respectively to locate the position of the wire.

12. The electric toothbrush according to claim 11, It is characterized in that The fixing member is a solidified colloid filled in the wire space.

13. The electric toothbrush according to claim 11, It is characterized in that The fixing member is located at the end of the motor shaft facing away from the power supply assembly.

14. The electric toothbrush according to claim 10, It is characterized in that The wire is connected to the power supply component by welding, and a fixing adhesive layer is wrapped at the connection between the wire and the power supply component.

15. The electric toothbrush according to claim 10, It is characterized in that The length of the wire extending from the end of the motor shaft is greater than the distance between the end of the motor shaft and the main control board.

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