Electronic brush head and electric toothbrush

Abstract

The utility model discloses an electronic brush head and an electric toothbrush, the electronic brush head comprises: a bearing member, which is internally provided with an accommodating cavity and is provided with a first end and a second end; brushing hair; the power utilization assembly is arranged on the bearing piece, and the power utilization assembly comprises a first electric connecting piece located in the containing cavity; the inserting piece is arranged in the containing cavity and comprises a base and a second electric connecting piece, the second electric connecting piece is arranged on the base and comprises a conductive end and a power connection end, the conductive end is exposed out of the base and electrically connected with the first electric connecting piece in a contact mode, and the power connection end is used for being electrically connected with the brush handle. Therefore, by arranging the plug-in installed in the accommodating cavity, when the plug-in is installed in the accommodating cavity, the conductive end can form contact type electric connection with the first electric connecting piece, so that the first electric connecting piece and the second electric connecting piece can directly complete electric connection when the plug-in and the electric component are assembled; the assembly and the electric connection of the plug-in and the electric component are facilitated, and the assembly difficulty of the electronic brush head is reduced.

Description

Technical Field

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

[0002] With the progress and development of society, people's awareness of personal hygiene has gradually increased. For example, oral cleaning requires more than just an ordinary toothbrush. The emergence of electric toothbrushes can better solve the problem of oral hygiene.

[0003] In the related art, due to the small size of the brush head, the operable space is small, which makes it difficult to electrically connect the electrical components inside the brush head during production and assembly of the brush head, affecting the production and assembly efficiency of the brush head. 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 provides an electronic brush head, the internal components of which are easy to connect electrically, effectively reducing the difficulty of production and assembly of the electronic brush head.

[0005] An electronic brush head for an electric toothbrush comprises: a carrier, a accommodating cavity is provided in the carrier, the carrier has a first end and a second end; bristles, the bristles are arranged at the second end; an electrical component, the electrical component is arranged on the carrier, the electrical component comprises a first electrical connector located in the accommodating cavity; and an insert, the insert is arranged in the accommodating cavity, the insert comprises a base and a second electrical connector, the second electrical connector is arranged on the base, the second electrical connector comprises a conductive end and a power connection end, the conductive end is exposed on the base and is electrically connected to the first electrical connector in a contact manner, and the power connection end is used to electrically connect to a handle of the electric toothbrush.

[0006] According to the electronic brush head of the utility model, a plug-in is arranged to be installed in the accommodating cavity, the plug-in includes a base and a second electrical connector, the conductive end of the second electrical connector extends out of the base, and an electrical component is arranged in the accommodating cavity. When the plug-in is installed in the accommodating cavity, the conductive end can form a contact electrical connection with the first electrical connector, so that when the plug-in and the electrical component are assembled, the first electrical connector and the second electrical connector can directly complete the electrical connection, which is convenient for the assembly and electrical connection of the plug-in and the electrical component, reduces the difficulty of production and assembly of the electronic brush head, and effectively improves the production and assembly efficiency of the electronic brush head.

[0007] According to some embodiments of the present invention, at least one of the first electrical connector and the second electrical connector has elasticity for elastic contact.

[0008] According to some embodiments of the present invention, the second electrical connector is formed as a metal spring, and the conductive end is in elastic contact with the first electrical connector.

[0009] According to some embodiments of the present invention, the conductive end is in surface contact with the first electrical connector.

[0010] According to some embodiments of the present invention, the conductive end is formed as an arc-shaped surface to make surface contact with the first electrical connector; and / or a portion of the second electrical connector is bent and protruded toward the first electrical connector to define the conductive end.

[0011] According to some embodiments of the present invention, there are multiple second electrical connectors, and the multiple second electrical connectors are distributed on both sides of the first electrical connector. The multiple second electrical connectors define a clamping space, and the first electrical connector is clamped in the clamping space.

[0012] According to some embodiments of the present invention, at least one of the second electrical connectors is provided with a first guide portion connected to the conductive end, the first guide portion extends in a direction away from the first electrical connector, and the first guide portion is used to guide the first electrical connector into the clamping space.

[0013] According to some embodiments of the present invention, the power connection end is formed as an elastic arc surface to be electrically connected to the brush handle.

[0014] According to some embodiments of the utility model, an insertion channel is provided in the plug-in, and the insertion channel is provided with an insertion port, and the brush handle is suitable for being inserted into the insertion channel through the insertion port to be electrically connected to the power connection end; the power connection end is located on a side of the base away from the insertion port.

[0015] According to some embodiments of the utility model, the insertion channel includes a first channel and a second channel, the minimum cross-sectional area of ​​the first channel is greater than the maximum cross-sectional area of ​​the second channel, the second channel is provided with the insertion port, and the power connection end is located in the first channel.

[0016] According to some embodiments of the utility model, the base is an injection-molded part that wraps the second electrical connector so that the second electrical connector is fixed to the base; or a placement cavity is provided in the base, the second electrical connector is inserted into the placement cavity, and the placement cavity is filled with a fixing glue layer to position the second electrical connector.

[0017] According to some embodiments of the present invention, the plug-in further includes a plug, the plug is fixed to the inner wall of the accommodating cavity, and the base is inserted into the plug.

[0018] According to some embodiments of the present invention, the plug and the base are interference fit.

[0019] According to some embodiments of the present invention, the plug further comprises an elastic buckle, and the elastic buckle is used to cooperate with the brush handle buckle.

[0020] According to some embodiments of the present invention, an escape space is formed between the elastic buckle and the inner wall of the accommodating cavity.

[0021] According to some embodiments of the present invention, the plug-in is sealed in cooperation with the accommodating cavity, and / or the base is sealed in cooperation with the second electrical connector.

[0022] According to some embodiments of the utility model, the electrical component also includes a circuit board and an electrical functional part. The first electrical connecting part is arranged on the circuit board. The electrical functional part is electrically connected to the circuit board. The electrical functional part is arranged in the accommodating cavity and / or exposed on the surface of the carrier. The electrical functional part takes effect at the position corresponding to the bristles.

[0023] Another object of the present invention is to provide an electric toothbrush.

[0024] An electric toothbrush comprises the electronic brush head mentioned above.

[0025] The electric toothbrush has the same advantages as the above-mentioned electronic brush head, which will not be elaborated here.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 A schematic diagram of an electric toothbrush according to an embodiment of the utility model;

[0029] Figure 2 for Figure 1 Sectional view at AA;

[0030] Figure 3 for Figure 2 The enlarged view of P in the middle;

[0031] Figure 4 A schematic diagram of an electronic brush head according to an embodiment of the utility model;

[0032] Figure 5 for Figure 4Cross-sectional view at BB;

[0033] Figure 6 for Figure 4 A cross-sectional view at another location;

[0034] Figure 7 It is a schematic diagram of assembling the second electrical connector and the base according to an embodiment of the utility model;

[0035] Figure 8 It is a schematic diagram of the second electrical connection member according to an embodiment of the utility model being installed on the first part;

[0036] Fig. 9 This is a schematic diagram of the structure of the plug-in according to an embodiment of the utility model;

[0037] Fig.10 A cross-sectional view of the plug-in according to an embodiment of the utility model;

[0038] Fig.11 It is a schematic diagram of the cooperation between the circuit board and the positioning protrusion described in the embodiment of the utility model.

[0039] Reference numerals:

[0040] The electronic brush head 100, the carrier 110, the accommodating cavity 111, the plate portion 112, the groove portion 113, the positioning protrusion 114, the guide slot 115,

[0041] bristles 120, electrical components 130, first electrical connectors 131, circuit boards 132, electrical functional components 133, plug-in 140, base 141, placement cavity 1411, first portion 1412, second portion 1413, mounting protrusion 1414, second electrical connector 142, conductive end 1421, electrical connection end 1422, clamping space 1423, first guide portion 1424, insertion space 1425, second guide portion 1426,

[0042] Insertion channel 143, insertion port 1431, first channel 1432, second channel 1433,

[0043] Plug 144, elastic buckle 1441, mounting groove 1442, boss 1443,

[0044] Avoidance space 150, sealing ring 160,

[0045] Brush handle 200, motor shaft 210, slot 211,

[0046] Electric toothbrush 1000. DETAILED DESCRIPTION

[0047] 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.

[0048] In the description of the present invention, it should be understood that the terms "center", "width", "thickness", "inside", "outside", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] 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.

[0050] Reference below Figure 1-Figure 11 The electronic brush head 100 according to an embodiment of the present invention is described.

[0051] Combination Figures 1 to 3 According to the utility model, the electronic brush head 100 is used for an electric toothbrush 1000, comprising: a carrier 110, a housing chamber 111 is provided in the carrier 110, and the carrier 110 has a first end and a second end; bristles 120, and the bristles 120 are arranged at the second end; an electrical component 130, and the electrical component 130 is arranged on the carrier 110, and the electrical component 130 includes a first electrical connector 131 located in the housing chamber 111; and a plug-in 140, and the plug-in 140 is arranged in the housing chamber 111, and the plug-in 140 includes a base 141 and a second electrical connector 142, and the second electrical connector 142 is arranged on the base 141, and the second electrical connector 142 includes a conductive end 1421 and an electrical connection end 1422, and the conductive end 1421 is exposed on the base 141 and is electrically connected to the first electrical connector 131 in a contacting manner, and the electrical connection end 1422 is used to be electrically connected to the brush handle 200 of the electric toothbrush 1000.

[0052] Specifically, the carrier 110 can serve as an installation carrier for the bristles 120, the electrical component 130 and the plug-in 140 to facilitate the assembly of the bristles 120, the electrical component 130 and the plug-in 140, wherein the second end of the carrier 110 is provided with bristles 120, and the bristles 120 can be used to clean teeth and the oral cavity, etc., and a accommodating cavity 111 is provided in the carrier 110, and the plug-in 140 and the electrical component 130 can be arranged in the accommodating cavity 111, so that the carrier 110 can cover structures such as the electrical component 130 to avoid affecting the aesthetics of the electric toothbrush 1000 due to the exposure of structures such as the electrical component 130, and at the same time, the carrier 110 can protect structures such as the electrical component 130 and reduce the risk of short circuit in the electric toothbrush 1000.

[0053] Furthermore, the second electrical connector 142 is disposed on the base 141, and the base 141 serves as an installation carrier for the second electrical connector 142 to facilitate the arrangement of the second electrical connector 142. The conductive end 1421 of the second electrical connector 142 extends out of the base 141. When the plug-in 140 is installed in the accommodating cavity 111, the conductive end 1421 can form a contact electrical connection with the first electrical connector 131, so that when the plug-in 140 and the electrical component 130 are assembled, the first electrical connector 131 and the second electrical connector 142 can directly complete the electrical connection, which facilitates the assembly and electrical connection of the plug-in 140 and the electrical component 130.

[0054] Further, the first end of the carrier 110 can be connected to the handle 200 of the electric toothbrush 1000, and when the first end of the carrier 110 is connected to the handle 200 of the electric toothbrush 1000, the power connection end 1422 is electrically connected to the handle 200, and the handle 200 can supply power to the power-consuming component 130 so that the power supply component can operate.

[0055] In the related art, due to the small size of the brush head, the operable space is small, which makes it difficult to electrically connect the electrical components inside the brush head during production and assembly of the brush head, affecting the production and assembly efficiency of the brush head.

[0056] The present application sets a plug-in 140. When the plug-in 140 is installed in the accommodating cavity 111, the conductive end 1421 can form a contact electrical connection with the first electrical connector 131, so that when the plug-in 140 and the electrical component 130 are assembled, the first electrical connector 131 and the second electrical connector 142 can directly complete the electrical connection, which facilitates the assembly and electrical connection of the plug-in 140 and the electrical component 130, reduces the difficulty of production and assembly of the electronic brush head 100, and effectively improves the production and assembly efficiency of the electronic brush head 100.

[0057] According to the electronic brush head 100 of the utility model, a plug-in 140 is arranged to be installed in the accommodating cavity 111, the plug-in 140 includes a base 141 and a second electrical connector 142, a conductive end 1421 of the second electrical connector 142 extends out of the base 141, and an electrical component 130 is arranged in the accommodating cavity 111. When the plug-in 140 is installed in the accommodating cavity 111, the conductive end 1421 can form a contact electrical connection with the first electrical connector 131, so that when the plug-in 140 and the electrical component 130 are assembled, the first electrical connector 131 and the second electrical connector 142 can directly complete the electrical connection, which facilitates the assembly and electrical connection of the plug-in 140 and the electrical component 130, reduces the difficulty of production and assembly of the electronic brush head 100, and effectively improves the production and assembly efficiency of the electronic brush head 100.

[0058] It should be noted that the first electrical connector 131 can be directly formed on the circuit board 132 of the electrical component 130. For example, the first electrical connector 131 is an exposed electrical contact or pad on the circuit board 132 to simplify the arrangement of the electrical connector.

[0059] In some embodiments of the present invention, at least one of the first electrical connector 131 and the second electrical connector 142 has elasticity for elastic contact.

[0060] Specifically, at least one of the first electrical connector 131 and the second electrical connector 142 has elasticity. For example, the first electrical connector 131 can be made elastic so that the first electrical connector 131 and the second electrical connector 142 can be in elastic contact, which is beneficial to improve the contact performance of the first electrical connector 131 and the second electrical connector 142, and ensure the reliability of the electrical connection between the first electrical connector 131 and the second electrical connector 142. At the same time, the electrical connection effect can be ensured without welding the first electrical connector 131 and the second electrical connector 142, thereby effectively reducing the production cost of the electronic brush head 100.

[0061] Optionally, combined Figure 4 and Figure 5 , the second electrical connector 142 can be made elastic; or the first electrical connector 131 and the second electrical connector 142 can both be made elastic. This structure has the same technical effect as the above structure and will not be elaborated here. It can be understood that the elastic setting of the specific first electrical connector 131 and the second electrical connector 142 can be determined according to the actual production and assembly requirements, and is not specifically limited here, as long as the first electrical connector 131 and the second electrical connector 142 can be in elastic contact.

[0062] Combination Figure 4 and Figure 5In some embodiments of the present invention, the second electrical connection member 142 is formed as a metal spring, and the conductive end 1421 is in elastic contact with the first electrical connection member 131 .

[0063] Specifically, the second electrical connection is formed into a metal spring sheet, which has a simpler structure than a spring pin and the like, so as to facilitate the production and processing of the second electrical connector 142 . Meanwhile, the metal spring sheet is small in size, which effectively reduces the layout space required for the second electrical connector 142 .

[0064] Furthermore, the conductive end 1421 can be in elastic contact with the first electrical connector 131 , which is beneficial to improving the contact performance between the first electrical connector 131 and the second electrical connector 142 and ensuring the reliability of the electrical connection between the first electrical connector 131 and the second electrical connector 142 .

[0065] Combination Figure 4 and Figure 5 In some embodiments of the present invention, the conductive end 1421 is in surface contact with the first electrical connector 131 .

[0066] Specifically, the conductive end 1421 can be elastically abutted against the first electrical connector 131, and the contact position of the two is formed as a surface contact, so as to effectively increase the contact area between the conductive end 1421 and the first electrical connector 131, improve the contact reliability between the conductive end 1421 and the first electrical connector 131, and help to stabilize the contact resistance between the conductive end 1421 and the first electrical connector 131, thereby helping to improve the reliability of the electrical connection between the conductive end 1421 and the first electrical connector 131.

[0067] Combination Figure 4 and Figure 5 In some embodiments of the present invention, the conductive end 1421 is formed as an arc-shaped surface to contact the surface of the first electrical connector 131; and / or, a portion of the second electrical connector 142 is bent and protruded toward the first electrical connector 131 to define the conductive end 1421.

[0068] Specifically, the conductive end 1421 can be arranged opposite to the first electrical connector 131, and the conductive end 1421 extends in an arc shape in a direction close to the first electrical connector 131 so that the conductive end 1421 forms an arc surface. When the conductive end 1421 is electrically connected to the first electrical connector 131, the conductive end 1421 is in surface contact with the first electrical connector 131, so as to effectively increase the contact area between the conductive end 1421 and the first electrical connector 131, improve the contact reliability between the conductive end 1421 and the first electrical connector 131, and improve the reliability of the electrical connection between the conductive end 1421 and the first electrical connector 131.

[0069] The side of the second electrical connector 142 away from the power connection end 1422 can be bent toward the direction close to the first electrical connector 131 to define a conductive end 1421. Since the second electrical connector 142 is formed as a metal spring sheet, the conductive end 1421 defined by the bending of the second electrical connector 142 has good elasticity and is easy to elastically deform when the conductive end 1421 contacts the first electrical connector 131, thereby increasing the contact area between the conductive end 1421 and the first electrical connector 131, so that the conductive end 1421 and the first electrical connector 131 form a surface contact, and facilitate the assembly of the conductive end 1421 and the first electrical connector 131. The conductive end 1421 and the first electrical connector 131 can be in elastic contact, thereby ensuring the reliability of the electrical connection between the first electrical connector 131 and the second electrical connector 142.

[0070] Optionally, the conductive end 1421 can be constructed as an arc-shaped surface formed at one end of the second electrical connector 142, for example, a side wall of the second electrical connector 142 close to the first electrical connector 131 can be formed with an arc-shaped protrusion to form the conductive end 1421 and make the conductive end 1421 contact the surface of the first electrical connector 131; or the conductive end 1421 can be formed by bending a side of the second electrical connector 142 away from the power connection end 1422, for example, a side of the second electrical connector 142 away from the power connection end 1422 can be bent toward the side close to the first electrical connector. 131, the conductive end 1421 is in a conical shape and can be in surface contact with the first electrical connector 131 at the same time as being in elastic contact; or, the conductive end 1421 can be formed by an end of the second electrical connector 142 away from the power connection end 1422 being bent in an arc shape toward the direction close to the first electrical connector 131, thereby forming an arc-shaped surface of the conductive end 1421, and the conductive end 1421 is elastic, so as to achieve surface contact and elastic contact between the conductive end 1421 and the first electrical connector 131, and facilitate the processing of the conductive end 1421.

[0071] It is understandable that the specific construction of the conductive end 1421 can be determined according to actual production and processing requirements and is not specifically limited here.

[0072] Combination Figure 4 , Figure 5 as well as Figure 7 In some embodiments of the present invention, there are multiple second electrical connectors 142 , and the multiple second electrical connectors 142 are distributed on both sides of the first electrical connector 131 . The multiple second electrical connectors 142 define a clamping space 1423 , and the first electrical connector 131 is clamped in the clamping space 1423 .

[0073] Specifically, multiple second electrical connectors 142 are evenly distributed on both sides of the first electrical connector 131, and the multiple second electrical connectors 142 are arranged at intervals and are located on one side of the first electrical connector 131. A clamping space 1423 is defined between the second electrical connector 142 and the second electrical connector 142 located on the other side of the first electrical connector 131. The first electrical connector 131 can be arranged in the clamping space 1423, and the multiple second electrical connectors 142 can clamp and fix the first electrical connector 131, thereby improving the contact reliability between the first electrical connector 131 and the second electrical connector 142, thereby improving the stability of the electrical connection between the first electrical connector 131 and the second electrical connector 142, and the second electrical connector 142 can support the first electrical connector 131, thereby improving the assembly stability of the first electrical connector 131.

[0074] In addition, by distributing multiple second electrical connectors 142 on both sides of the first electrical connector 131, the second electrical connector 142 can be made to contact both sides of the first electrical connector 131, thereby improving the reliability of the electrical connection between the first electrical connector 131 and the second electrical connector 142. When assembling the second electrical connector 142, the space on both sides of the first electrical connector 131 can be fully utilized, thereby improving the space utilization rate within the carrier 110.

[0075] It can be understood that the number of the second electrical connectors 142 is at least two. The specific number of the second electrical connectors 142 can be determined according to actual electrical connection requirements and is not specifically limited here.

[0076] Combination Figure 3 , Figure 7 and Figure 8 In some embodiments of the present invention, at least one second electrical connector 142 is provided with a first guide portion 1424 connected to the conductive end 1421, and the first guide portion 1424 extends in a direction away from the first electrical connector 131, and the first guide portion 1424 is used to guide the first electrical connector 131 to the clamping space 1423.

[0077] Specifically, a first guide portion 1424 is provided at one end of the conductive end 1421 away from the power connection end 1422. Along the direction in which the conductive end 1421 extends away from the power connection end 1422, the distance between the first guide portion 1424 and the first electrical connector 131 gradually increases. When the first electrical connector 131 needs to be clamped in the clamping space 1423, in the installation direction of the first electrical connector 131, the first guide portion 1424 can gradually press against the first electrical connector 131 to gradually guide the first electrical connector 131 into the clamping space 1423, so that the plurality of second electrical connectors 142 can clamp and fix the first electrical connector 131, thereby improving the contact reliability between the first electrical connector 131 and the second electrical connector 142, thereby improving the stability of the electrical connection between the first electrical connector 131 and the second electrical connector 142.

[0078] Optionally, one of the multiple second electrical connectors 142 can be provided with a first guide portion 1424; or two second electrical connectors 142 that are relatively arranged among the multiple second electrical connectors 142 are both provided with a first guide portion 1424, and the distance between the two first guide portions 1424 gradually increases along the direction extending from the conductive end 1421 away from the power connection end 1422; or the multiple second electrical connectors 142 are all provided with a first guide portion 1424, and the multiple first guide portions 1424 can further improve the guiding effect on the first electrical connector 131.

[0079] It is understandable that the specific number of the first guide portions 1424 can be determined according to actual production and processing requirements and is not specifically limited here.

[0080] Combination Figure 3 , Figure 7 and Figure 8 In some embodiments of the present invention, the end of the second electrical connector 142 away from the power connection terminal 1422 is bent in a direction away from the installation position of the first electrical connector 131 to define a first guide portion 1424. The first guide portion 1424 is integrally formed with the second electrical connector 142 to facilitate the processing of the second electrical connector 142.

[0081] Furthermore, the second electrical connector 142 can be formed as a metal spring sheet, so when the first guide portion 1424 is formed by bending the end of the second electrical connector 142, the first guide portion 1424 has good elasticity, which can effectively reduce the risk of damage to the first guide portion 1424, and the elastic force of the first guide portion 1424 itself is conducive to improving its guiding effect on the first electrical connector 131.

[0082] Combination Figure 3 , Figure 7 and Figure 8In some embodiments of the present invention, the power connection end 1422 is formed as an elastic arc surface to be electrically connected to the brush handle 200.

[0083] Specifically, the power connection end 1422 is formed as an elastic arc surface, and the elastic arc surface is easy to be elastically deformed when the power connection end 1422 contacts the brush handle 200, so that the power connection end 1422 can elastically abut against the brush handle 200, which is beneficial to improve the contact performance between the power connection end 1422 and the brush handle 200 and ensure the reliability of the electrical connection between the power connection end 1422 and the brush handle 200.

[0084] Combination Figure 3 , Figure 7 and Figure 8 In some embodiments of the present invention, there are multiple second electrical connectors 142, and the multiple second electrical connectors 142 are spaced apart to define an insertion space 1425. The power connection component of the brush handle 200 is suitable for being inserted into the insertion space 1425 to contact and electrically connect with the power connection end 1422.

[0085] Specifically, the plurality of second electrical connectors 142 can be evenly distributed on both sides of the power connection component of the brush handle 200, and the plurality of second electrical connectors 142 are arranged at intervals, and an insertion space 1425 is defined between the plurality of second electrical connectors 142 located on one side of the power connection component of the brush handle 200 and the plurality of second electrical connectors 142 located on the other side of the power connection component. The power connection component can be arranged in the insertion space 1425 and electrically connected to the power connection end 1422. The plurality of second electrical connectors 142 can clamp and fix the power connection component, thereby improving the contact reliability between the power connection component and the power connection end 1422, thereby improving the stability of the electrical connection between the second electrical connector 142 and the brush handle 200.

[0086] Combination Figure 3 , Figure 7 and Figure 8 In some embodiments of the present invention, at least one second electrical connector 142 is provided with a second guide portion 1426 connected to the power connection end 1422 , and the second guide portion 1426 extends obliquely in a direction away from the power connection end 1422 , and the second guide portion 1426 is used to guide the power connection component to be inserted into the space 1425 .

[0087] Specifically, a second guide portion 1426 is provided at one end of the power connection end 1422 away from the conductive end 1421, and the second guide portion 1426 extends obliquely in a direction away from the insertion space 1425 along the direction in which the power connection end 1422 extends away from the conductive end 1421, that is, a vertical distance between the second guide portion 1426 and the insertion space 1425 gradually increases along the direction in which the power connection end 1422 extends away from the conductive end 1421, and when the power connection component needs to be inserted into the insertion space 1425, the second guide portion 1426 can gradually press against the power connection component in the installation direction of the power connection component to gradually guide the power connection component into the insertion space 1425, and when the power connection component is inserted into the insertion space 1425, the plurality of second electrical connectors 142 can clamp and fix the power connection component, thereby improving the contact reliability between the power connection component and the power connection end 1422, thereby improving the stability of the electrical connection between the brush handle 200 and the second electrical connector 142.

[0088] Optionally, one of the multiple second electrical connectors 142 can be provided with a second guide portion 1426; or two relatively arranged electrical connectors among the multiple second electrical connectors 142 can be provided with second guide portions 1426, and the distance between the two second guide portions 1426 gradually increases along the direction extending from the electrical connecting end 1422 away from the conductive end 1421; or the multiple second electrical connectors 142 can be provided with second guide portions 1426, and the multiple second guide portions 1426 can further improve the guiding effect of the docking electrical components.

[0089] It is understandable that the specific number of the second guide portions 1426 can be determined according to actual production and processing requirements and is not specifically limited here.

[0090] Combination Figure 3 , Figure 7 and Figure 8 In some embodiments of the present invention, the second electrical connection member 142 is formed as an elastic member and a portion thereof is bent to define the power connection end 1422 and the second guide portion 1426 .

[0091] Specifically, the second electrical connector 142 is formed as an elastic member, and the side of the second electrical connector 142 away from the conductive end 1421 can be bent in an arc shape toward the brush handle 200 to define the power connection end 1422, and the second electrical connector 142 can be formed as a metal spring sheet, so the power connection end 1422 defined by the bending of the second electrical connector 142 has good elasticity, thereby forming the power connection end 1422 into an elastic arc surface, so as to achieve elastic contact between the power connection end 1422 and the brush handle 200, and facilitate the processing of the power connection end 1422.

[0092] Furthermore, the second electrical connector 142 is bent at the end of the power connection end 1422 away from the conductive end 1421 toward the installation position away from the power connection assembly to define a second guide portion 1426 , and the second guide portion 1426 is integrally formed with the second electrical connector 142 to facilitate processing of the second electrical connector 142 .

[0093] In addition, the second electrical connector 142 is formed as an elastic member, so when the second guide portion 1426 is formed by bending the end of the second electrical connector 142, the second guide portion 1426 has good elasticity, which can effectively reduce the risk of damage to the second guide portion 1426, and the elastic force of the second guide portion 1426 itself is conducive to improving its guiding effect on the docking electrical components.

[0094] Combination Figure 3 , Fig. 9 and Fig.10 In some embodiments of the utility model, an insertion channel 143 is provided in the plug-in 140, and the insertion channel 143 is provided with an insertion port 1431. The brush handle 200 is suitable for being inserted into the insertion channel 143 through the insertion port 1431 to be electrically connected to the power terminal 1422; the power terminal 1422 is located on the side of the base 141 away from the insertion port 1431.

[0095] Specifically, an insertion channel 143 extending along the height direction of the electric toothbrush 1000 is provided in the plug-in 140, and an insertion port 1431 is formed at the same side end of the insertion channel 143 and the first end of the carrier 110. The brush handle 200 is provided with a motor, and the motor shaft 210 of the motor extends along the height direction of the electric toothbrush 1000, and one end of the motor shaft 210 can be inserted into the insertion channel 143 through the insertion port 1431.

[0096] Furthermore, a portion of the second electrical connector 142 close to the power connection terminal 1422 is disposed in the insertion channel 143, and the power connection terminal 1422 is disposed away from the insertion port 1431, and the power connection component is disposed on the motor shaft 210. When one end of the motor shaft 210 is inserted into the insertion channel 143, the power connection component can be electrically connected to the power connection terminal 1422, and a detachable contact-type electrical connection is formed between the power connection component and the power connection terminal 1422, wherein vibration is small at a position away from the insertion port 1431, and by disposing the power connection terminal 1422 away from the insertion port 1431 to reduce vibration at the power connection terminal 1422, the stability of the electrical connection between the power connection terminal 1422 and the power connection component is improved.

[0097] In addition, the arrangement of the power connection end 1422 away from the insertion port 1431 can effectively reduce the risk of water entering the insertion channel 143 and causing a short circuit.

[0098] Combination Figure 3 , Fig. 9 and Fig.10In some embodiments of the present invention, the insertion channel 143 includes a first channel 1432 and a second channel 1433 , the minimum cross-sectional area of ​​the first channel 1432 is greater than the maximum cross-sectional area of ​​the second channel 1433 , the second channel 1433 is provided with an insertion port 1431 , and the power connection terminal 1422 is located in the first channel 1432 .

[0099] Specifically, the first channel 1432 is connected to the second channel 1433, and the brush handle 200 can be plugged into and matched with the carrier 110 of the electronic brush head 100. During the assembly of the brush handle 200 and the electronic brush head 100, the motor shaft 210 of the brush handle 200 extends into the base 141 and is inserted into the insertion channel 143 through the insertion port 1431, wherein the motor shaft 210 is first inserted into the second channel 1433 and then extends into the first channel 1432 and is plugged into and matched with the first channel 1432, and the power connection component arranged on the motor shaft 210 can be electrically connected to the power connection end 1422 arranged in the first channel 1432.

[0100] Furthermore, the maximum value of the cross-sectional area of ​​the second channel 1433 is smaller than the minimum value of the cross-sectional area of ​​the first channel 1432, that is, the space of the first channel 1432 is larger, so that the power terminal 1422 can be arranged in the first channel 1432, and the insertion port 1431 is arranged in the second channel 1433, so that the opening area of ​​the insertion port 1431 is smaller, and water is not easy to flow in through the insertion port 1431. At the same time, the power terminal 1422 is arranged in the first channel 1432, and because the cross-sectional area of ​​the second channel 1433 is smaller, it can further prevent water from flowing into the first channel 1432 through the second channel 1433 and causing a short circuit between the power terminal 1422 and the power connection component, which is beneficial to improving the reliability of the electrical connection between the power terminal 1422 and the power connection component.

[0101] In some embodiments of the present invention, the base 141 is an injection molded part that wraps the second electrical connector 142 so that the second electrical connector 142 is fixed to the base 141; or a placement cavity 1411 is provided in the base 141, and the second electrical connector 142 is inserted into the placement cavity 1411, and the placement cavity 1411 is filled with a fixing glue layer to position the second electrical connector 142.

[0102] Specifically, the base 141 can be formed on the second electrical connector 142 by injection molding so that the second electrical connector 142 can be fixed on the base 141 to facilitate the assembly of the second electrical connector 142, and the base 141 injection molded on the second electrical connector 142 is sealed with the second electrical connector 142 to effectively prevent water from entering the base 141.

[0103] Optionally, combined Figure 3 , Figure 7 and Figure 8The base 141 may include a first portion 1412 and a second portion 1413. The first portion 1412 and the second portion 1413 together define a placement cavity 1411. A groove structure for positioning and installing the second electrical connector 142 is formed on the inner wall surface of the placement cavity 1411. The second electrical connector 142 may be assembled in the groove structure of the first portion 1412 first, and then the second portion 1413 is engaged with and connected to the first portion 1412, so that the second electrical connector 142 is assembled in the groove structure of the first portion 1412. The connector 142 is inserted into the base 141, and the placement cavity 1411 is filled with a fixed adhesive layer so that the second electrical connector 142 can be fixedly connected to the base 141, so as to achieve the positioning of the second electrical connector 142, prevent the second electrical connector 142 from shaking, and ensure the stability of the electrical connection between the second electrical connector 142 and the first electrical connector 131 and the electrical connection component, and the fixed adhesive layer can fill the gap between the second electrical connector 142 and the base 141 to prevent water from entering the base 141.

[0104] It is understandable that the specific configuration of the base 141 can be determined according to actual production and assembly requirements and is not specifically limited here.

[0105] Combination Figure 3 , Fig. 9 and Fig.10 In some embodiments of the present invention, the plug 140 further includes a plug 144 , the plug 144 is fixed to the inner wall of the accommodating cavity 111 , and the base 141 is inserted into the plug 144 .

[0106] Specifically, the plug 144 is fixed to the inner wall of the accommodating cavity 111, and the base 141 can be plugged into the plug 144. When the base 141 is assembled in place on the plug 144, a glue sealing process is performed to prevent a gap from being formed between the base 141 and the plug 144, thereby preventing water from entering the base 141 through the gap between the base 141 and the plug 144.

[0107] Combination Figure 3 , Fig. 9 and Fig.10 In some embodiments of the utility model, when the plug-in 140 includes a plug 144, a first channel 1432 and a second channel 1433 are formed on the plug 144, and the first channel 1432 is arranged on a side of the plug 144 away from the first end of the carrier 110, the base 141 is installed in the first channel 1432, the power terminal 1422 is arranged in the base 141, the minimum cross-sectional area of ​​the first channel 1432 is greater than the maximum cross-sectional area of ​​the second channel 1433, and a boss 1443 is formed at the position where the first channel 1432 and the second channel 1433 are connected. When the base 141 is installed in place in the plug 144, the boss 1443 and the base 141 are stopped and matched to position the base 141.

[0108] Combination Figure 7 and Fig. 9 In some embodiments of the present invention, the plug 144 and the base 141 are interference fit.

[0109] Specifically, a mounting protrusion 1414 is formed on the outer wall surface of the base 141, and a mounting groove 1442 is formed on the inner peripheral wall of the mounting cavity structure. When the base 141 is plugged into and assembled into the plug 144, the mounting protrusion 1414 can be embedded in the mounting groove 1442 and the two are interference fit, so that the base 141 can be fixed to the plug 144 to prevent the base 141 from shaking, thereby preventing the base 141 from driving the second electrical connector 142 to shake, effectively ensuring the stability of the electrical connection between the second electrical connector 142 and the first electrical connector 131 and the electrical connection assembly.

[0110] Combination Figure 3 , Fig. 9 and Fig.10 In some embodiments of the present invention, the plug 144 further includes an elastic buckle 1441 , and the elastic buckle 1441 is used for buckling with the brush handle 200 .

[0111] Specifically, an elastic buckle 1441 is provided at the position of the second channel 1433 on the plug 144, and the elastic buckle 1441 is provided near the insertion port 1431. A slot 211 is provided at a position away from the power connection component on the motor shaft 210. During the assembly of the electronic brush head 100 and the brush handle 200, the motor shaft 210 presses against the elastic buckle 1441 to deform it. When the motor shaft 210 moves to the position where the slot 211 thereon is arranged opposite to the elastic buckle 1441, position, the elastic buckle 1441 recovers its deformation and snaps into the slot 211, so that the elastic buckle 1441 can snap-fit ​​with the motor shaft 210, that is, the elastic buckle 1441 snap-fits with the brush handle 200, and because the plug 144 is fixed to the inner wall of the accommodating cavity 111, the snap-fit ​​of the electronic brush head 100 and the brush handle 200 can be achieved, preventing the electronic brush head 100 from detaching from the brush handle 200, and ensuring the reliability of the fit between the electronic brush head 100 and the brush handle 200.

[0112] Combination Figure 3 , Fig. 9 and Fig.10 In some embodiments of the present invention, an escape space 150 is formed between the elastic buckle 1441 and the inner wall of the accommodating cavity 111 .

[0113] Specifically, when the plug 144 is installed in the accommodating cavity 111, the elastic buckle 1441 is spaced apart from the inner wall of the accommodating cavity 111 to form an escape space 150. During the assembly of the electronic brush head 100 and the brush handle 200, the motor shaft 210 presses against the elastic buckle 1441 to deform it toward the inner wall of the accommodating cavity 111. The escape space 150 can avoid the elastic buckle 1441 when it is deformed to ensure that the elastic buckle 1441 can be deformed, thereby avoiding the assembly of the electronic brush head 100 and the brush handle 200 being affected by the direct abutment between the elastic buckle 1441 and the inner wall of the accommodating cavity 111 so that it cannot be deformed.

[0114] Combination Figure 3 , Figure 5 and Fig.10 In some embodiments of the present invention, the plug-in 140 is sealed with the accommodating cavity 111 , and / or the base 141 is sealed with the second electrical connector 142 .

[0115] Specifically, a sealing ring 160 may be embedded in the outer peripheral wall of the plug-in 140 , through which the plug-in 140 can be sealed with the accommodating cavity 111 to prevent water from entering through the gap between the plug-in 140 and the inner wall of the accommodating cavity 111 , thereby ensuring the sealing of the electronic brush head 100 .

[0116] Optionally, after the plug-in 140 is installed in the accommodating cavity 111, the plug-in 140 and the accommodating cavity 111 can be sealed together by means of glue injection. Of course, it is understandable that the plug-in 140 and the accommodating cavity 111 can also be sealed together by other means. The specific sealing and matching method can be determined according to the production and processing cost, and is not specifically limited here, as long as the sealing and matching effect between the plug-in 140 and the accommodating cavity 111 is guaranteed.

[0117] The base 141 can be formed on the second electrical connector 142 by injection molding so that the base 141 and the second electrical connector 142 can be sealed together; or the base 141 can be processed separately, and the second electrical connector 142 can be assembled in the base 141, and the base 141 and the second electrical connector 142 can be sealed together by filling a fixed glue layer. It can be understood that the sealing matching method between the base 141 and the second electrical connector 142 is not specifically limited here, as long as the sealing matching effect between the base 141 and the second electrical connector 142 is guaranteed.

[0118] Optionally, the plug-in 140 can be sealed with the accommodating cavity 111 to prevent water from flowing into the accommodating cavity 111 through the gap between the plug-in 140 and the accommodating cavity 111; or the base 141 can be sealed with the second electrical connector 142 to prevent water from flowing into the accommodating cavity 111 through the gap between the plug-in 140 and the accommodating cavity 111 and contacting the second electrical connector 142 to cause a short circuit; or the plug-in 140 can be sealed with the accommodating cavity 111 while the base 141 and the second electrical connector 142 are sealed to further improve the sealing of the electronic brush head 100, which is beneficial to improving the stability of the electrical connection in the electronic brush head 100.

[0119] Combination Figure 3 and Figure 5 In some embodiments of the utility model, the electrical component 130 also includes a circuit board 132 and an electrical functional component 133. The first electrical connector 131 is disposed on the circuit board 132. The electrical functional component 133 is electrically connected to the circuit board 132. The electrical functional component 133 is disposed in the accommodating cavity 111 and / or exposed on the surface of the carrier 110. The electrical functional component 133 takes effect at the position corresponding to the bristles 120.

[0120] Specifically, the electrical functional component 133 is electrically connected to the circuit board 132, the first electrical connector 131 is exposedly arranged on the circuit board 132 and electrically connected to the second electrical connector 142, and the second electrical connector 142 forms a detachable contact connection with the second electrical connector 142 on the brush handle 200 to achieve detachable cooperation between the electronic brush head 100 and the brush handle 200, thereby facilitating regular replacement of the electronic brush head 100 or regular cleaning of the electronic brush head 100.

[0121] When the user needs to disassemble the electronic brush head 100 and the brush handle 200, the second electrical connector 142 is separated from the power connection component so that the carrier 110 and the electrical component 130 can be removed from the brush handle 200. At the same time, the electrical component 130 and the bristles 120 can always remain relatively still, and the electrical function component 133 is always electrically connected to the second electrical connector 142 through the first electrical connector 131. When installing or disassembling the electronic brush head 100, the electrical function component 133 can be used to produce an effect at the corresponding position of the bristles 120, so that the electrical function component 133 can always maintain a stable electrical connection with the second electrical connector 142 through the first electrical connector 131. There is no need to adjust the wiring of the electronic brush head 100 when disassembling the electronic brush head 100, thereby simplifying its wiring when disassembling the electronic brush head 100.

[0122] In some embodiments of the utility model, the electrical functional component 133 is a light-emitting component, which can emit a blue light beam with a wavelength of 480-520mm. 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 120. 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.

[0123] Among them, the light emitted by the light-emitting part can also be used for lighting, catalyzing the ingredients of toothpaste, reducing inflammation in the oral cavity, promoting blood circulation, etc., and there are no excessive restrictions here.

[0124] In other embodiments, the electrical functional component 133 is a radio frequency electrode, which can emit a radio frequency current, thereby generating charged particles to decompose tooth stains or decompose dental plaque and tartar. Due to the pervasive nature of radio frequency, the radio frequency current can reach blind spots such as tooth gaps and gum lines that are not cleaned by ordinary toothbrushes, thereby meeting the need to clean the blind spots.

[0125] In other embodiments, the electrical functional component 133 is an electrolytic electrode, which 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.

[0126] In other embodiments, the electrical functional component 133 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 120.

[0127] In some other embodiments, the electrical functional component 133 is a camera. When the user uses the electric toothbrush 1000, the electrical functional component 133 can be used to photograph the inside of the oral cavity. The user can use the camera to observe the inside of the oral cavity, thereby facilitating judgment of the health of the oral cavity.

[0128] In some other embodiments, the electrical functional component 133 is 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.

[0129] Combination Figure 5 , Figure 6 as well as Fig.11In some embodiments of the present invention, the carrier 110 includes a plate portion 112 and a groove portion 113, both of which are formed at the second end of the carrier 110, the plate portion 112 is used to set the bristles 120, and the groove portion 113 is arranged opposite to the plate portion 112 in the extension direction of the bristles 120, and the electrical functional component 133 and the circuit board 132 can be arranged in the groove portion 113, so that the electrical functional component 133 can take effect at the corresponding position of the bristles 120.

[0130] Furthermore, the side of the circuit board 132 facing away from the bristles 120 can be fixed in the groove 113 by gluing, and the circuit board 132 and the point functional parts can be fixedly assembled without setting additional connecting parts, thereby effectively simplifying the internal parts setting of the electronic brush head 100, thereby effectively solving the problem that the internal space of the electronic brush head 100 is small and the components are difficult to arrange.

[0131] Combination Figure 5 , Figure 6 as well as Fig.11 In some embodiments of the present invention, the width dimension of the groove 113 is the width dimension of the circuit board 132 so as to facilitate the installation of the circuit board 132 in the groove 113. A plurality of positioning protrusions 114 are formed on the inner wall of the groove 113. The plurality of positioning protrusions 114 are arranged at intervals in the circumferential direction of the groove 113, and each positioning protrusion 114 bulges from the inner wall of the groove 113 toward the center of the groove 113. When the circuit board 132 is installed in the groove 113, the positioning protrusion 114 can be engaged with the circuit board 132 to position the circuit board 132 and prevent the circuit board 132 from shaking in the groove 113.

[0132] Combination Figure 5 , Figure 6 as well as Fig.11 In some embodiments of the utility model, a guide slot 115 is provided in the carrier 110, the guide slot 115 is formed in the accommodating cavity 111, and the guide slot 115 is communicated with the groove portion 113. When the circuit board 132 is assembled to the carrier 110, a portion of the circuit board 132 extends from the groove portion 113 and extends into the guide slot 115. The guide slot 115 can guide the installation direction of the portion of the circuit board 132 extending out of the groove portion 113 to prevent the circuit board 132 from deviating. At the same time, the guide slot 115 can limit the circuit board 132 to prevent the circuit board 132 from shaking.

[0133] The electric toothbrush 1000 according to the present invention comprises the electronic brush head 100 mentioned above.

[0134] Since the electric toothbrush 1000 is provided with the above-mentioned electronic brush head 100, by setting a plug-in 140 installed in the accommodating cavity 111, the plug-in 140 includes a base 141 and a second electrical connector 142, and the conductive end 1421 of the second electrical connector 142 extends out of the base 141, and an electrical component 130 is arranged in the accommodating cavity 111. When the plug-in 140 is installed in the accommodating cavity 111, the conductive end 1421 can form a contact electrical connection with the first electrical connector 131, so that when the plug-in 140 and the electrical component 130 are assembled, the first electrical connector 131 and the second electrical connector 142 can directly complete the electrical connection, which facilitates the assembly and electrical connection of the plug-in 140 and the electrical component 130, reduces the difficulty of production and assembly of the electronic brush head 100, and effectively improves the production and assembly efficiency of the electronic brush head 100.

[0135] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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.

[0136] 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 electronic brush head for an electric toothbrush, characterized in that: include: A carrier, wherein a receiving cavity is provided in the carrier, and the carrier has a first end and a second end; bristles, the bristles being disposed at the second end; An electrical component, the electrical component is arranged on the carrier, and the electrical component includes a first electrical connector located in the accommodating cavity; as well as, The plug-in is arranged in the accommodating cavity, the plug-in includes a base and a second electrical connector, the second electrical connector is arranged on the base, the second electrical connector includes a conductive end and a power connection end, the conductive end is exposed on the base and is electrically connected to the first electrical connector in a contact manner, and the power connection end is used to electrically connect to the handle of the electric toothbrush.

2. The electronic brush head according to claim 1, characterized in that: At least one of the first electrical connector and the second electrical connector has elasticity to elastically contact.

3. The electronic brush head according to claim 2, characterized in that: The second electrical connection member is formed as a metal spring, and the conductive end is in elastic contact with the first electrical connection member.

4. The electronic brush head according to claim 3, characterized in that: The conductive end is in surface contact with the first electrical connector.

5. The electronic brush head according to claim 4, characterized in that: The conductive end is formed into an arc-shaped surface to contact with the first electrical connector surface; and / or A portion of the second electrical connector is bent and protruded toward the first electrical connector to define the conductive end.

6. The electronic brush head according to claim 1, characterized in that: There are a plurality of the second electrical connectors, and the plurality of the second electrical connectors are distributed on both sides of the first electrical connector. The plurality of the second electrical connectors define a clamping space, and the first electrical connector is clamped in the clamping space.

7. The electronic brush head according to claim 6, characterized in that: At least one of the second electrical connectors is provided with a first guide portion connected to the conductive end, the first guide portion extends in a direction away from the first electrical connector, and the first guide portion is used to guide the first electrical connector into the clamping space.

8. The electronic brush head according to claim 1, characterized in that: The power connection end is formed as an elastic arc surface to be electrically connected to the brush handle.

9. The electronic brush head according to claim 1, characterized in that: An insertion channel is provided in the plug-in, and an insertion opening is provided in the insertion channel. The brush handle is suitable for passing through the insertion opening and being inserted into the insertion channel to be electrically connected with the power connection terminal; The power connection end is located at a side of the base away from the insertion port.

10. The electronic brush head according to claim 9, characterized in that: The insertion channel includes a first channel and a second channel, the minimum cross-sectional area of ​​the first channel is greater than the maximum cross-sectional area of ​​the second channel, the second channel is provided with the insertion port, and the power connection terminal is located in the first channel.

11. The electronic brush head according to claim 1, characterized in that: The base is an injection molded part that wraps the second electrical connector so that the second electrical connector is fixed to the base; or A placement cavity is provided in the base, the second electrical connector is inserted in the placement cavity, and a fixing adhesive layer is filled in the placement cavity to position the second electrical connector.

12. The electronic brush head according to claim 1, characterized in that: The plug-in unit further comprises a plug, the plug is fixed to the inner wall of the accommodating cavity, and the base is inserted into the plug.

13. The electronic brush head according to claim 12, characterized in that: The plug and the base are interference fit.

14. The electronic brush head according to claim 12, characterized in that: The plug also includes an elastic buckle, and the elastic buckle is used to cooperate with the brush handle buckle.

15. The electronic brush head according to claim 14, characterized in that: An escape space is formed between the elastic buckle and the inner wall of the accommodating cavity.

16. The electronic brush head according to claim 1, characterized in that: The plug-in unit is sealed in cooperation with the accommodating cavity, and / or the base is sealed in cooperation with the second electrical connector.

17. The electronic brush head according to any one of claims 1 to 16, characterized in that: The electrical component also includes a circuit board and an electrical functional part. The first electrical connecting part is arranged on the circuit board. The electrical functional part is electrically connected to the circuit board. The electrical functional part is arranged in the accommodating cavity and / or exposed on the surface of the carrier. The electrical functional part takes effect at the position corresponding to the bristles.

18. An electric toothbrush, characterized in that: Comprising the electronic brush head according to any one of claims 1-17.

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