Motor support and electric toothbrush
By designing strip-shaped shock-absorbing pads and using a two-color injection molding process, the problems of poor shock absorption and high processing difficulty of existing motor brackets have been solved, achieving simple processing and efficient shock absorption.
Patent Information
- Application Number
- CN202520301315.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The existing motor bracket is a rigid structure with poor shock absorption, and the existing shock-absorbing pads have complex shapes and are difficult to process.
Design a motor bracket with a strip-shaped shock-absorbing pad, which is formed by two-color injection molding. The main structure and the buffer structure are separated. The main structure has high rigidity, while the buffer structure has good elasticity. Multiple strip protrusions provide elastic deformation space and sound absorption effect.
While simplifying the manufacturing process, it improves the shock absorption effect and noise absorption capacity, and enhances the stability of the motor bracket and the overall structure.
Smart Images
Figure CN223957387U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor assembly technical field, concretely relates to a motor support and electric toothbrush. BACKGROUND
[0002] In the related art, the motor support itself is a rigid body structure, and the damping effect is poor, and a damping gasket needs to be used additionally. In the prior art, the damping gasket is provided with a plurality of point-shaped protrusions spaced from each other, the point-shaped protrusions are distributed along the axial direction of the motor, and the point-shaped protrusions abut against the motor and are used for damping. However, the damping gasket has a complex shape and is difficult to process. SUMMARY
[0003] The utility model discloses at least one of the technical problems in the prior art. To this end, the utility model provides a motor support, and the part of the damping gasket (first buffering structure) for abutting against the motor is in a strip shape, so that the damping gasket has a simple structure and is convenient to process.
[0004] The utility model further provides an electric toothbrush with the motor support.
[0005] According to the motor support of the first aspect embodiment of the utility model, the first main body structure includes a first cavity for accommodating the motor, the first cavity includes a first opening for placing the motor, and the inner wall surface of the first cavity includes a first inner peripheral wall surrounding the central axis of the first cavity. The first buffering structure has elasticity, and the first buffering structure includes a plurality of first protruding portions in a strip shape, the first protruding portions extend along the axial direction of the first main body structure, the plurality of first protruding portions are distributed in a spaced manner along the circumferential direction of the first cavity, the first protruding portions protrude towards the central axis of the first main body structure relative to the first inner peripheral wall, and the side surface of the first protruding portion close to the central axis of the first main body structure is used for abutting against the motor.
[0006] According to the motor support of the utility model, the first protruding portion in a strip shape has a simpler structure and is convenient to process. The space between the first protruding portions also provides a space for the elastic deformation of the first protruding portions after being subjected to vibration, and the damping effect is good.
[0007] According to some embodiments of the utility model, the hardness of the first main body structure is greater than the hardness of the first buffering structure, and the first main body structure and the first buffering structure are formed by a two-color injection molding process.
[0008] According to some embodiments of the utility model, the first main body structure is provided with a glue injection port, the first buffering structure includes a glue injection portion, the glue injection portion is clamped in the glue injection port, and the inner wall surface of the glue injection port and the outer surface of the glue injection portion abut against each other to limit the movement of the glue injection portion relative to the first main body structure.
[0009] According to some embodiments of the utility model, first inner circumferential wall is equipped with a plurality of first recess, a plurality of first recess interval distribution along the circumference of first cavity, first buffer structure still includes a plurality of combination, a plurality of combination interval distribution along the circumference of first cavity, every combination is fixedly connected with at least one first protruding part, and combination is arranged in first recess.
[0010] According to some embodiments of the utility model, first buffer structure includes first guide part, and first guide part is arranged on the outer circumferential surface of first main body structure, and first guide part is outwardly protruding relative to the outer circumferential surface of first main body structure, and first guide part extends along the axial direction of first main body structure.
[0011] According to some embodiments of the utility model, the outer circumferential surface of first main body structure is provided with connecting hole, and connecting hole is through-hole, and first protruding part and first guide part are communicated through connecting hole.
[0012] According to some embodiments of the utility model, first main body structure includes positioning part, and positioning part is arranged on the outer circumferential surface of first main body structure, and positioning part is in abutment with first guide part and extends along the axial direction of first main body structure.
[0013] According to some embodiments of the utility model, motor support further includes second main body structure and second buffer structure. Second main body structure is arranged at intervals with first main body structure, and second main body structure includes second cavity for accommodating motor, and second cavity includes second opening for placing motor, and first opening and second opening are arranged opposite, and the inner wall surface of second cavity includes second inner circumferential wall, and second inner circumferential wall surrounds the central axis of second cavity. Second buffer structure is arranged in second cavity, and second buffer structure has elasticity, and second buffer structure includes a plurality of second protruding parts in strip shape, and second protruding part extends along the axial direction of second main body structure, and a plurality of second protruding parts interval distribution along the circumference of second cavity, and second protruding part is protruding relative to second inner circumferential wall towards the central axis of second main body structure, and the side surface of second protruding part close to the central axis of second main body structure is used for abutting with motor. The inner wall surface of first cavity includes first abutment surface, and first abutment surface and first opening are respectively located at both ends of first cavity, and the inner wall surface of second cavity includes second abutment surface, and second abutment surface and second opening are respectively located at both ends of second cavity, and first abutment surface and second abutment surface respectively hold both ends of motor to limit the movement of motor in the axial direction.
[0014] According to some embodiments of the utility model, the inner wall surface of second main body structure is provided with second recess, and one end of second recess is communicated with second opening, and second recess is arranged along the axial direction of second main body structure.
[0015] According to some embodiments of the utility model, the second buffer structure includes a second guide part, the second guide part is arranged on the outer circumferential surface of the second main body structure, the second guide part protrudes outward relative to the outer circumferential surface of the second main body structure, and the second guide part extends along the axial direction of the second main body structure.
[0016] According to some embodiments of the utility model, the first buffer structure includes a first guide part, the first guide part is arranged on the outer circumferential surface of the first main body structure, the first guide part protrudes outward relative to the first main body structure, and the first guide part extends along the axial direction of the first main body structure. The first buffer structure includes a first protruding block, the first protruding block is connected to the first guide part, the first protruding block has elasticity, and the first protruding block protrudes in at least one direction of the radial direction and the circumferential direction of the first main body structure relative to the outer surface of the first guide part. And / or, the second buffer structure includes a second protruding block, the second protruding block is connected to the second guide part, the second protruding block has elasticity, and the second protruding block protrudes in at least one direction of the radial direction and the circumferential direction of the second main body structure relative to the outer surface of the second guide part.
[0017] According to some embodiments of the utility model, the motor support further includes an electrical connector, the second main body structure further includes a third cavity for accommodating a battery, and a portion of the electrical connector is located in the second cavity and a portion of the electrical connector is located in the third cavity.
[0018] According to the electric toothbrush of the second aspect of the utility model, the motor support of any one of the first aspect of the utility model, further includes a motor, and the motor is installed in the motor support.
[0019] According to the electric toothbrush of the utility model, at least has following beneficial effect: the first protruding part structure of strip shape is simpler, and processing is convenient. After the motor is installed in the motor support, the interval between the first protruding parts also provides space for the elastic deformation of the first protruding parts after the vibration of the motor, so that the shock absorption effect of the electric toothbrush is better.
[0020] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0021] The utility model will be further explained in combination with the drawings and embodiments, wherein:
[0022] Figure 1 It is the perspective view of the first main body structure of the motor support of some embodiments of the utility model;
[0023] Figure 2 It is the perspective view of the second main body structure of the motor support of some embodiments of the utility model;
[0024] Figure 3Internal structure explosion view of the electric toothbrush of some embodiments of the present application;
[0025] Figure 4 Partial explosion view of the motor support of some embodiments of the present application;
[0026] Figure 5 For Figure 3 Enlarged view of the middle A area;
[0027] Figure 6 Schematic view of the damping support in the prior art.
[0028] The drawings: motor support 100, first main body structure 101, first buffer structure 102, first protruding part 103, combination part 104, first abutting surface 105, first protruding block 106, first guide part 107, first inner peripheral wall 108, first cavity 109, first opening 110, middle axis 111, second main body structure 201, second buffer structure 202, second protruding part 203, second recess 204, second protruding block 205, second guide part 206, third cavity 207, second abutting surface 208, second cavity 209, second inner peripheral wall 210, second opening 211, electric connection piece 212, electric toothbrush 300, motor 301, clamping part 302, first recess 405, glue injection port 401, glue injection part 402, connecting hole 403, positioning part 404. DETAILED DESCRIPTION
[0029] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0030] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.
[0031] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described that the first, the second is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or the sequence of the indicated technical features.
[0032] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be understood broadly, and the skilled in the art can determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0033] In the description of the utility model, the description of reference terms such as "an embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" 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 the specification, the illustrative description 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.
[0034] Figure 6 For the structural diagram of the damping support in the prior art, the damping pad is provided with a plurality of point-shaped protrusions spaced from each other, the point-shaped protrusions are distributed along the axial direction of the motor, and the point-shaped protrusions abut against the motor and are used for damping. However, the damping pad has a complex shape and is difficult to process.
[0035] Reference Figure 1 And Figure 4 According to the motor support 100 of the first aspect embodiment of the utility model, the first main body structure 101 includes the first cavity 109 for accommodating the motor 301, the first cavity 109 includes the first opening 110 for placing the motor 301, and the inner wall surface of the first cavity 109 includes the first inner circumferential wall 108 surrounding the central axis 111 of the first cavity 109. The first buffer structure 102 has elasticity, and the first buffer structure 102 includes a plurality of first protruding portions 103 in the form of strips, the first protruding portions 103 extend along the axial direction of the first main body structure 101, the plurality of first protruding portions 103 are distributed in the circumferential direction of the first cavity 109, the first protruding portions 103 protrude towards the central axis 111 of the first main body structure 101 relative to the first inner circumferential wall 108, and the side surface of the first protruding portions 103 close to the central axis 111 of the first main body structure 101 is used for abutting against the motor 301. The first protruding portions 103 in the form of strips have a simpler structure and are convenient to process. The space between the first protruding portions 103 also provides space for the elastic deformation of the first protruding portions 103 after being subjected to vibration, and the damping effect is good.
[0036] Specifically, the interval of the first protruding part 103 can be deformed to the interval on both sides when the first protruding part 103 is pressed by the vibration of the vibration source, such as the motor 301, to absorb and release most of the vibration; at the same time, the interval can also be used as a sound absorption cavity to absorb part of the noise, and the shock absorption effect is better.
[0037] It should be noted that, with reference to Figure 1 and Figure 2 In some embodiments of the present application, the outer surface of the first protruding part 103 and the second protruding part 203 mentioned below is chamfered, which can reduce the scratching of the first protruding part 103 and the second protruding part 203 on the surface of the motor 301 when the motor 301 is put into the first cavity 109 and the second cavity 209, and improve the surface quality of the motor 301.
[0038] In some embodiments of the present application, the hardness of the first main structure 101 is greater than the hardness of the first buffer structure 102, and the first main structure 101 and the first buffer structure 102 are formed by a double-color injection molding process. The first main structure 101 is used as the shell of the motor support 100, so it is set to have a higher hardness, and the first buffer structure 102 is used for buffering vibration, so it is set to have a lower hardness. The double-color injection molding process has high combination degree and is easy to process, which reduces the assembly process and improves the processing efficiency. It should be noted that in some embodiments of the present application, the first main structure 101 uses hard glue, specifically ABS (acrylonitrile-styrene-butadiene copolymer), PC (polycarbonate) and other materials, which have high hardness and good plasticity; the first buffer structure 102 uses soft glue, specifically TPU (thermoplastic polyurethane elastomer), silicone and other materials, which have good elasticity, strong buffering capacity and good plasticity, and good molding effect.
[0039] It should be noted that, with reference to Figure 1 and Figure 2 In some embodiments of the present application, the face of the first protruding part 103 abutting against the motor 301 is trapezoidal, and the width gradually increases from the first opening 110 to the first abutting face 105. This design facilitates smooth demolding during processing.
[0040] With reference to Figure 4 In some embodiments of the present application, the first main structure 101 is provided with a glue injection port 401, and the first buffer structure 102 includes a glue injection part 402, the glue injection part 402 is clamped in the glue injection port 401, and the inner wall surface of the glue injection port 401 abuts against the outer surface of the glue injection part 402 to limit the movement of the glue injection part 402 relative to the first main structure 101. This design can make the first buffer structure 102 have a part clamped in the first main structure 101 after glue injection molding, so that the connection between the two is more stable. And, with reference to Figure 4In some embodiments of the utility model, preferably, the glue injection port 401 is communicated with the first opening 110, so that the first main body structure 101 can be designed more simply in the mold, facilitating molding and demolding, and in addition, the flowability of the first buffer structure 102 during molding can be increased, and the molding quality can be improved.
[0041] Reference Figure 1 And Figure 4 According to some embodiments of the utility model, the first inner peripheral wall 108 is provided with a plurality of first grooves 405, the plurality of first grooves 405 are distributed at intervals along the circumference of the first cavity 109, the first buffer structure 102 further comprises a plurality of combination portions 104, the plurality of combination portions 104 are distributed at intervals along the circumference of the first cavity 109, each combination portion 104 is fixedly connected with at least one first protruding portion 103, and the combination portion 104 is arranged in the first groove 405. The combination portion 104 can increase the contact area of the first buffer structure 102 and the first main body structure 101, improve the stability when the first buffer structure 102 is placed in the first main body structure 101, and the first groove 405 can reduce the volume occupied by the combination portion 104 in the first cavity 109, so that the structure is more compact.
[0042] It should be noted that, with reference to Figure 4 In some embodiments of the utility model, the end portions between the plurality of combination portions 104 are connected together, so that the first buffer structure 102 is designed as a whole, which is more convenient for integral molding and improves the structural stability.
[0043] It should be noted that, with reference to Figure 1 And Figure 4 In some embodiments of the utility model, two first protruding portions 103 are arranged on each combination portion 104, and the two first protruding portions 103 are arranged at two ends of the combination portion 104 along the circumference of the first cavity 109, so that the injection molding is facilitated, and the number of first protruding portions 103 can be increased, and the damping effect can be improved.
[0044] It should be noted that, with reference to Figure 1 And Figure 4 In some embodiments of the utility model, the combination portion 104 is designed to be four in the circumferential center of the first cavity 109, so that the distribution is uniform, the damping stress is more uniform, and the damping effect is improved.
[0045] Reference Figure 1In some embodiments of the utility model, first buffering structure 102 includes first guide portion 107, first guide portion 107 is arranged at the outer circumferential surface of first main body structure 101, first guide portion 107 is outwardly protruding relative to the outer circumferential surface of first main body structure 101, and first guide portion 107 extends along the axial direction of first main body structure 101. In some embodiments of the utility model, motor support 100 is used as the support of external equipment installation motor 301, and first guide portion 107 can match the inner wall surface of the equipment shell. When motor support 100 is used as the accessory of other equipment, first guide portion 107 can play a guiding role in the process of installing motor support 100 into the shell, and can also limit the rotation of motor support 100 relative to the shell, thereby improving the stability of the overall structure.
[0046] It should be noted that, in some embodiments of the utility model, the equipment can be an electric toothbrush 300, or a shaver, a fascia gun or other equipment with a motor 301.
[0047] Reference Figure 4 In some embodiments of the utility model, the outer circumferential surface of first main body structure 101 is provided with a connecting hole 403, the connecting hole 403 is a through hole, and the first protruding portion 103 and the first guide portion 107 are communicated through the connecting hole 403. Such design allows the first protruding portion 103 located inside the first main body structure 101 to be integrally formed with the first guide portion 107 located outside the first main body structure 101 as shown in Figure 4 , which simplifies the molding process, improves the molding quality, makes the first buffering structure 102 an integral whole after molding, and improves the structural stability.
[0048] Reference Figure 4 In some embodiments of the utility model, the first main body structure 101 includes a positioning portion 404, the positioning portion 404 is arranged on the outer circumferential surface of the first main body structure 101, and the positioning portion 404 abuts against the first guide portion 107 and extends along the axial direction of the first main body structure 101. The positioning portion 404 plays a positioning role for the first guide portion 107, prevents the first guide portion from being deviated in position during molding and assembly, and affects the guiding and assembly effect of the first guide portion 107 when the motor support 100 is installed in the shell of the external equipment. It should be noted that, with reference to Figure 1 and Figure 4 In some embodiments of the utility model, the first protruding block 106 is arranged at both ends of the first guide portion 107 and abuts against both ends of the positioning portion 404 after installation, and at least one first protruding block 106 is communicated with the part of the first buffering structure 102 located inside the first main body structure 101 through the connecting hole 403, which can simplify the complexity of the mold and improve the molding quality.
[0049] Reference Figure 2 and Figure 3In some embodiments of the utility model, motor support 100 still includes second main body structure 201 and second buffer structure 202. Second main body structure 201 is spaced apart from first main body structure 101, and second main body structure 201 includes second cavity 209 for accommodating motor 301, second cavity 209 includes second opening 211 for placing motor 301, first opening 110 and second opening 211 are oppositely arranged, and the inner wall surface of second cavity 209 includes second inner circumferential wall 210, and second inner circumferential wall 210 surrounds the central axis of second cavity 209. Second buffer structure 202 is arranged in second cavity 209, second buffer structure 202 is elastic, second buffer structure 202 includes a plurality of second protruding portions 203 in strip shape, second protruding portions 203 extend along the axial direction of second main body structure 201, a plurality of second protruding portions 203 are distributed along the circumferential direction of second cavity 209, second protruding portions 203 protrude towards the central axis of second main body structure 201 relative to second inner circumferential wall 210, and the side surface of second protruding portions 203 close to the central axis of second main body structure 201 is used for abutting against motor 301. The inner wall surface of first cavity 109 includes first abutting surface 105, first abutting surface 105 and first opening 110 are respectively located at the two ends of first cavity 109, the inner wall surface of second cavity 209 includes second abutting surface 208, second abutting surface 208 and second opening 211 are respectively located at the two ends of second cavity 209, and first abutting surface 105 and second abutting surface 208 respectively abut against the two ends of motor 301 to limit the movement of motor 301 in the axial direction. Making motor support 100 into two sections can more conveniently install motor 301, and can match motors 301 of different lengths. Second buffer structure 202 is the same as first buffer structure 102, and also has a good buffering effect, first abutting surface 105 and second abutting surface 208 respectively abut against the two ends of motor 301, and the stability of the overall structure can be improved.
[0050] Reference Figure 2 , Figure 3 and Figure 5 In some embodiments of the utility model, the inner wall surface of second main body structure 201 is provided with second groove 204, one end of second groove 204 is communicated with second opening 211, and second groove 204 is arranged along the axial direction of second main body structure 201. Figure 3 and Figure 5 As shown in some embodiments of the utility model, a clamping portion 302 is arranged on motor 301, in the process of installing motor 301 into second cavity 209, clamping portion 302 enters through the end of second groove 204 connected with second opening 211, second groove 204 plays a positioning and guiding role, and installation is facilitated. Meanwhile, second groove 204 can limit relative rotation between motor 301 and second main body structure 201 in the use process, and the stability of the overall structure is improved.
[0051] With reference to Figure 2 In some embodiments of the present application, the second buffer structure 202 comprises a second guide portion 206, which is arranged on the outer circumferential surface of the second main structure 201, and protrudes outward relative to the outer circumferential surface of the second main structure 201, and extends along the axial direction of the second main structure 201. In some embodiments of the present application, the second guide portion 206 can match the inner wall surface of the device shell, and when the motor support 100 is used as a component of other devices, the second guide portion 206 can play a guiding role in the process of installing the motor support 100 into the shell, and can also limit the rotation of the motor support 100 relative to the shell, thereby improving the stability of the overall structure.
[0052] With reference to Figure 1 And Figure 2 In some embodiments of the present application, the first buffer structure 102 comprises a first guide portion 107, which is arranged on the outer circumferential surface of the first main structure 101, and protrudes outward relative to the first main structure 101, and extends along the axial direction of the first main structure 101. The first buffer structure 102 comprises a first protruding block 106, which is connected to the first guide portion 107, and has elasticity, and protrudes relative to the outer surface of the first guide portion 107 along at least one of the radial direction and the circumferential direction of the first main structure 101. And / or, the second buffer structure 202 comprises a second protruding block 205, which is connected to the second guide portion 206, and has elasticity, and protrudes relative to the outer surface of the second guide portion 206 along at least one of the radial direction and the circumferential direction of the second main structure 201. The protruding curved surface of the first protruding block 106 and the second protruding block 205 can make the protruding curved surface of the motor support 100 abut against the inner wall surface of the shell of the external device when the motor support 100 is installed into the shell, so as to generate an interference fit, thereby improving the overall stability of the motor support 100 after being installed into the device shell.
[0053] With reference to Figure 2 And Figure 3In some embodiments of the utility model, motor support 100 further includes electric connector 212, second main body structure 201 further includes third cavity 207 for accommodating battery, part of electric connector 212 is located in second cavity 209, and part of electric connector 212 is located in third cavity 207. Third cavity 207 is used to accommodate battery, and the third cavity 207 is arranged in the second main body structure 201 and can be integrally formed, so that the overall structure is more firm and stable. At the same time, electric connector 212 is respectively located in second cavity 209 and third cavity 207, so that when the battery is placed in third cavity 207 and motor 301 is placed in second cavity 209, the battery and motor 301 are communicated through electric connector 212, so that the battery provides power for motor 301, and the structure is more compact.
[0054] It should be noted that in some embodiments of the utility model, electric connector 212 can be a printed circuit board, and can be a wire or other electric connector.
[0055] According to the electric toothbrush 300 of the second aspect of the utility model, the motor support 100 of any one of the first aspect of the utility model is further provided with a motor 301, and the motor 301 is installed in the motor support 100. The first protruding part 103 in strip-shaped structure is simple and convenient to process. After the motor 301 is installed in the motor support 100, the interval between the first protruding parts 103 also provides space for the elastic deformation of the first protruding parts 103 after being vibrated by the motor 301, so that the shock absorption effect of the electric toothbrush 300 is better. The interval of the first protruding part 103 can make the first protruding part 103 be deformed to the interval on both sides when being pressed by the vibration source, such as the motor 301, to absorb and release most of the vibration; at the same time, the interval can also be used as a sound absorption cavity to absorb part of the noise, so that the overall electric toothbrush 300 is more stable.
[0056] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
Claims
1. An electric motor support, characterized in that The motor support comprises: a first body structure comprising a first cavity for accommodating a motor, the first cavity comprising a first opening for placing the motor, an inner wall surface of the first cavity comprising a first inner peripheral wall surrounding a central axis of the first cavity; a first buffer structure having elasticity, the first buffer structure comprising a plurality of first protruding portions in a strip shape, the first protruding portions extending along an axial direction of the first body structure, the plurality of first protruding portions being spaced apart along a circumferential direction of the first cavity, the first protruding portions being convex relative to the first inner peripheral wall towards the central axis of the first body structure, a side surface of the first protruding portions close to the central axis of the first body structure being configured to abut against the motor.
2. The motor mount of claim 1, wherein, The first body structure has a hardness greater than that of the first buffer structure, and the first body structure and the first buffer structure are formed by a two-color injection molding process.
3. The motor mount of claim 2, wherein, The first body structure is provided with a glue injection port, and the first buffer structure comprises a glue injection portion, the glue injection portion being clamped in the glue injection port, an inner wall surface of the glue injection port abutting against an outer surface of the glue injection portion to limit movement of the glue injection portion relative to the first body structure.
4. The motor mount of claim 1, wherein, The first inner peripheral wall is provided with a plurality of first grooves spaced apart along the circumferential direction of the first cavity, and the first buffer structure further comprises a plurality of connecting portions spaced apart along the circumferential direction of the first cavity, each connecting portion being fixedly connected with at least one first protruding portion, and the connecting portion being arranged in the first groove.
5. The motor mount of claim 1, wherein, The first buffer structure comprises a first guide portion arranged on an outer peripheral surface of the first body structure, the first guide portion being convex outward relative to the outer peripheral surface of the first body structure, and the first guide portion extending along the axial direction of the first body structure.
6. The motor mount of claim 5, wherein, The outer peripheral surface of the first body structure is provided with a connecting hole, the connecting hole being a through hole, and the first protruding portion and the first guide portion being in communication through the connecting hole.
7. The motor mount of claim 5, wherein, The first body structure comprises a positioning portion arranged on the outer peripheral surface of the first body structure, the positioning portion abutting against the first guide portion and extending along the axial direction of the first body structure.
8. The motor mount of claim 1, wherein, The motor support further comprises: a second body structure spaced apart from the first body structure, the second body structure comprising a second cavity for accommodating a motor, the second cavity comprising a second opening for placing the motor, the first opening and the second opening being arranged opposite to each other, an inner wall surface of the second cavity comprising a second inner peripheral wall surrounding a central axis of the second cavity; A second buffering structure is arranged in the second cavity, and the second buffering structure is elastic. The second buffering structure includes a plurality of second protruding portions in the shape of a strip. The second protruding portions extend along the axial direction of the second main body structure. The second protruding portions are arranged at intervals along the circumferential direction of the second cavity. The second protruding portions protrude towards the central axis of the second main body structure relative to the second inner circumferential wall. The side surface of the second protruding portion close to the central axis of the second main body structure is used to abut against the motor. The inner wall surface of the first cavity includes a first abutting surface. The first abutting surface and the first opening are respectively located at two ends of the first cavity. The inner wall surface of the second cavity includes a second abutting surface. The second abutting surface and the second opening are respectively located at two ends of the second cavity. The first abutting surface and the second abutting surface respectively abut against two ends of the motor to limit the movement of the motor in the axial direction.
9. The motor mount of claim 8, wherein, The inner wall surface of the second main body structure is provided with a second groove. One end of the second groove is in communication with the second opening. The second groove is arranged along the axial direction of the second main body structure.
10. The motor mount of claim 8, wherein, The second buffering structure includes a second guide portion. The second guide portion is arranged on the outer circumferential surface of the second main body structure. The second guide portion protrudes outward relative to the outer circumferential surface of the second main body structure. The second guide portion extends along the axial direction of the second main body structure.
11. The motor mount of claim 10, wherein, The first buffering structure includes a first guide portion. The first guide portion is arranged on the outer circumferential surface of the first main body structure. The first guide portion protrudes outward relative to the first main body structure. The first guide portion extends along the axial direction of the first main body structure. The first buffering structure includes a first protruding block. The first protruding block is connected to the first guide portion. The first protruding block is elastic. The first protruding block protrudes in at least one of the radial direction and the circumferential direction of the first main body structure relative to the outer surface of the first guide portion. And / or, The second buffering structure includes a second protruding block. The second protruding block is connected to the second guide portion. The second protruding block is elastic. The second protruding block protrudes in at least one of the radial direction and the circumferential direction of the second main body structure relative to the outer surface of the second guide portion.
12. The motor mount of claim 8, wherein, The motor support further includes an electrical connector. The second main body structure further includes a third cavity for accommodating a battery. Part of the electrical connector is located in the second cavity, and the other part of the electrical connector is located in the third cavity.
13. An electric toothbrush characterized by The electric toothbrush includes: The motor support according to any one of claims 1-12; The motor is mounted in the motor support.