Electric shaver with magnetic attraction structure
By designing through holes in the cover plate to expose the magnetic components and combining them with annular walls and ribs through interference fit, the problems of weak magnetic attraction and easy detachment of magnets in electric shavers are solved, resulting in a more stable magnetic attraction structure.
Patent Information
- Application Number
- CN202520544611.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The magnets in existing electric shavers have weak magnetic attraction in the mounting slot design, making them prone to falling off.
Through holes are designed on the cover plate to expose the magnetic components. The combination of the annular wall and the rib interference connection enhances the magnetic attraction. The positioning and matching of the positioning contour and the matching contour ensure that the magnetic components are firmly installed.
The magnetic attraction force has been improved to prevent magnetic components from falling off and to ensure a stable connection between the cutter head assembly and the body.
Smart Images

Figure CN223734934U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shaving tool technology, and in particular relates to an electric shaver with a magnetic suction structure. Background Technology
[0002] An electric shaver consists of a stainless steel mesh cover, inner blades, a miniature motor, and a housing. The mesh cover, which is the fixed outer blade, has many holes through which beard hairs can be inserted. The miniature motor is powered by electricity, which drives the inner blades to move, cutting the beard hairs inserted into the holes using the shearing principle.
[0003] When cleaning stubble from the shaver body and the foil head, the two need to be separated. Currently, the foil head of shavers is usually connected to the body magnetically. When installing magnets on the body, a mounting slot design is used, and the magnets are fixed with interference fits or adhesive. However, the magnetic attraction of magnets installed in the slot on the back is weak because they are not in contact with the magnets on the foil head. If a front slot design is used, the magnets are more likely to fall off. Utility Model Content
[0004] The main purpose of this invention is to propose an electric shaver with a magnetic attraction structure, which aims to solve the technical problem that the magnetic attraction of magnets with mounting slot designs is weak and they are easy to fall off.
[0005] To achieve the above objectives, the electric shaver with a magnetic attraction structure proposed in this utility model includes:
[0006] The body includes a housing and a drive motor installed inside the housing, as well as a cover plate for closing the opening of the housing, wherein the output shaft of the drive motor is exposed outward from a first through hole in the cover plate;
[0007] A cutter head assembly, the cutter head assembly including a cutter head seat and a circular cutter rotatably mounted on the cutter head seat, and a cutter mesh mounted in an opening of the cutter head seat; and,
[0008] Multiple magnetic components are respectively disposed opposite to the body and the cutter head assembly;
[0009] The cover plate is further provided with a second through hole, and an annular wall is formed on the inner side of the cover plate. The diameter of the annular wall is larger than that of the second through hole. The magnetic component is fixed inside the annular wall, and one end of it protrudes outward from the second through hole.
[0010] Optionally, the second through hole is a circular hole, and the annular wall is cylindrical.
[0011] Optionally, the diameter of the second through hole is 4-6 mm.
[0012] Optionally, at least two of the magnetic elements are disposed in the middle of the cover plate.
[0013] Optionally, the two magnetic elements are located in the middle of the cover plate and arranged symmetrically.
[0014] Optionally, the annular wall is provided with a plurality of ribs extending along the axial direction, and the magnetic component is interference-fitted with each of the ribs.
[0015] Optionally, the cutter head holder is provided with a mounting groove, and the magnetic component is fixed to the mounting groove and exposed outward.
[0016] Optionally, the outer edge of the cover plate is formed with a positioning profile for positioning and engaging with the matching profile on the inner wall of the cutter head seat.
[0017] Optionally, when the positioning contour and the matching contour are positioned and matched, the plurality of magnetic components are in contact with each other and are attracted to each other.
[0018] Optionally, the cutter head holder is provided with a mounting bracket, and the circular cutter is rotatably mounted on the mounting bracket.
[0019] In the technical solution of this utility model, by designing an opening in the cover plate, the magnetic component is exposed, which enhances the magnetic attraction force with the magnetic component on the cutter head. At the same time, the diameter of the second through hole is narrowed to match the smaller end of the magnetic component, preventing the magnetic component on the cover plate from falling out of the second through hole, and making the installation more stable. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0021] Figure 1 This is a perspective structural diagram of an embodiment of an electric shaver with a magnetic attraction structure provided by this utility model;
[0022] Figure 2 yes Figure 1 A three-dimensional view of the main body;
[0023] Figure 3 yes Figure 1 3D view of the cutter head assembly;
[0024] Figure 4 yes Figure 2 A three-dimensional view of the middle cover plate;
[0025] Figure 5 yes Figure 1 Top view;
[0026] Figure 6 yes Figure 5 A cross-sectional view of section AA in the middle.
[0027] Labeling Explanation: Electric shaver with magnetic structure - 100, body - 1, outer shell - 11, drive motor - 12, output shaft - 121, cover plate - 13, first through hole - 13a, second through hole - 13b, annular wall - 131, rib - 1311, positioning profile - 132, shaver head assembly - 2, shaver head holder - 21, mounting groove - 211, matching profile - 212, mounting bracket - 213, circular blade - 22, blade foil - 23, magnetic component - 3.
[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] To better describe and illustrate the embodiments of this application, reference may be made to one or more accompanying drawings, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the utility model creation, the embodiments or preferred embodiments of this application, or the preferred methods described herein.
[0031] In the description of this utility model, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0033] When cleaning stubble from the shaver body and the foil head, the two need to be separated. Currently, the foil head of shavers is usually connected to the body magnetically. When installing magnets on the body, a mounting slot design is used, and the magnets are fixed with interference fits or adhesive. However, the magnetic attraction of magnets installed in the slot on the back is weak because they are not in contact with the magnets on the foil head. If a front slot design is used, the magnets are more likely to fall off.
[0034] Therefore, this utility model provides an electric shaver with a magnetic attraction structure. Figure 1-6 An embodiment of the filter element with a handle provided by this utility model. Please refer to... Figure 1-6 The electric shaver 100 includes a body 1, a shaver head assembly 2, and multiple magnetic components 3, which are respectively disposed opposite to each other on the body 1 and the shaver head assembly 2. It should be noted that the magnetic components 3 are permanent magnets with strong magnetic attraction, and some of the magnetic components 3 can also be replaced with iron components.
[0035] Specifically, the main body 1 has a housing 11 and a drive motor 12 fixedly installed inside the housing 11. The housing 11 has an opening, and the main body 1 also has a cover plate 13 for closing the opening. The cover plate 13 is fixedly connected to the housing 11 by a snap fastener. Two first through holes 13a are symmetrically arranged on the cover plate 13. The two output shafts 121 of the drive motor 12 are exposed outward from the two first through holes 13a respectively. The machine also has a control panel, power supply and other components, which are also installed inside the housing 11 for controlling the operation of the drive motor 12. The control principle of the control panel has been disclosed in the prior art and will not be described in detail here.
[0036] The cutter head assembly 2 consists of a cutter head seat 21, a circular cutter 22, and a cutter mesh 23. The cutter head seat 21 is a hollow structure with openings at both ends. The circular cutter 22 is rotatably mounted inside the cutter head seat 21. The cutter mesh 23 is installed in one of the openings of the cutter head seat 21, and a magnetic component 3 is installed in the other opening, which is exposed to the outside.
[0037] Please see Figure 4 and 6 The cover plate 13 is also provided with a second through hole 13b. The cover plate 13 is also formed with an annular wall 131 on the side (i.e., the inner side) near the drive motor 12. The diameter of the annular wall 131 is larger than that of the second through hole 13b. The magnetic component 3 installed on the body 1 is a rotating body structure with different sizes at both ends. The larger part is fixed in the annular wall 131, and the smaller part is stuck in the second through hole 13b, with the end protruding outward from the second through hole 13b.
[0038] In the technical solution of this utility model, by opening a hole in the cover plate 13, the end of the magnetic component 3 is exposed, which enhances its magnetic attraction with the magnetic component 3 on the cutter head. At the same time, the diameter of the second through hole 13b is narrowed to match the smaller end of the magnetic component 3, preventing the magnetic component 3 on the cover plate 13 from falling out of the second through hole 13b, and making the installation more stable.
[0039] The structural design of magnetic component 3 can be varied, including frustum-shaped or other shapes. Please refer to [link / reference]. Figure 6 In one embodiment of this utility model, the magnetic component 3 is composed of a larger cylinder and a smaller cylinder. As such, the second through hole 13b is a circular hole and the annular wall 131 is cylindrical.
[0040] To facilitate the use and distribution of the magnetic component 3 on the cover plate 13, in one embodiment of this utility model, the diameter of the second through hole 13b is 4-6mm, which can be applied to most shapes and sizes of shavers; correspondingly, the diameter of the annular wall 131 is 5-7mm.
[0041] To facilitate the mutual adhesion between the cutter head assembly 2 and the body 1, please refer to... Figure 2 In one embodiment of this utility model, at least two magnetic elements 3 are disposed in the middle of the cover plate 13, so that the adsorption force is more concentrated and the adsorption and fixation can be completed by alignment.
[0042] To ensure the adsorption force is evenly distributed in the middle, please refer to [link / reference needed]. Figure 2 In one embodiment of this utility model, two magnetic elements 3 are disposed in the middle of the cover plate 13 and are arranged symmetrically to prevent the blade assembly 2 and the body 1 from separating.
[0043] To ensure a stable connection between the magnetic component 3 and the annular wall 131, please refer to [link / reference needed]. Figure 4 In one embodiment of this utility model, the annular wall 131 is provided with a plurality of ribs 1311 extending along the axial direction, and the magnetic component 3 is interference connected to each rib 1311. This method is more stable than bonding.
[0044] Correspondingly, please refer to Figure 3 and 6 In one embodiment of this utility model, the cutter head holder 21 is provided with a mounting groove 211 corresponding to the position of the second through hole 13b. The magnetic component 3 is fixed in the mounting groove 211 and exposed outwards, and is directly opposite to the magnetic component 3 exposed in the second through hole 13b. Of course, in order to strengthen the relative fixation between the magnetic component 3 and the mounting groove 211, the groove wall of the mounting groove 211 is also provided with a plurality of ribs extending along the axial direction.
[0045] To ensure a smoother magnetic connection between the blade assembly 2 and the body 1, please refer to [link / reference needed]. Figure 3 and 4In one embodiment of the present invention, a positioning profile 132, i.e. a groove, is formed on the outer edge of the cover plate 13, and a matching profile 212, i.e. a protrusion, is formed on the inner wall of the cutter head seat 21, and a positioning fit can be formed between the protrusion and the groove.
[0046] Furthermore, in one embodiment of this utility model, please refer to... Figure 6 When the positioning contour 132 and the matching contour 212 are positioned and engaged, multiple magnetic components 3 come into contact with each other and attract each other, which strengthens the connection between the body 1 and the cutter head assembly 2.
[0047] To enable the circular cutter 22 to be rotatably mounted on the cutter head holder 21, please refer to... Figure 3 In one embodiment of this utility model, the cutter head holder 21 is provided with a mounting bracket 213, the circular cutter 22 is rotatably mounted on the mounting bracket 213, and is connected to the output shaft 121 of the drive motor 12.
[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0049] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. An electric shaver having a magnetic attraction structure, characterized by comprising: The utility model relates to a kind of circular cutter, including: The body (1) includes shell (11) and driving motor (12) installed in the shell (11), and cover plate (13) for closing the opening of the shell (11), the output shaft (121) of the driving motor (12) is exposed from the first through-hole (13a) on the cover plate (13) outward; Tool bit assembly (2), the tool bit assembly (2) includes tool bit seat (21) and rotary installation is installed in the tool bit seat (21) circular cutter (22), and tool net (23) is installed in the opening of the tool bit seat (21);And, Multiple magnetic pieces (3) are oppositely arranged on the body (1) and tool bit assembly (2) respectively; Wherein, the cover plate (13) is further provided with second through-hole (13b), and the inner side of the cover plate (13) is further formed with annular wall (131), the caliber of the annular wall (131) is greater than the second through-hole (13b), the magnetic piece (3) is fixed in the annular wall (131), and one end is exposed outward from the second through-hole (13b).
2. The electric shaver with magnetic attraction structure according to claim 1, wherein, The second through-hole (13b) is circular hole, and the annular wall (131) is cylindrical.
3. The electric shaver with magnetic attraction structure according to claim 2, wherein The diameter of the second through-hole (13b) is 4-6mm.
4. The electric shaver with magnetic attraction structure according to claim 1, wherein At least two magnetic pieces (3) are arranged in the middle of the cover plate (13).
5. The electric shaver with magnetic attraction structure according to claim 4, wherein Two magnetic pieces (3) are arranged in the middle of the cover plate (13) and symmetrically arranged.
6. The electric shaver with magnetic attraction structure according to claim 1, wherein The annular wall (131) is provided with a plurality of axially extending ribs (1311), and the magnetic piece (3) is connected with each rib (1311) in interference.
7. The electric shaver with magnetic attraction structure according to claim 1, wherein The tool bit seat (21) is provided with mounting groove (211), and the magnetic piece (3) is fixed in the mounting groove (211) and exposed outward.
8. The electric shaver with magnetic attraction structure according to claim 1, wherein The outer edge of the cover plate (13) is formed with positioning contour (132), to be positioned with the coordination contour (212) on the inner wall of the tool bit seat (21) matched.
9. The electric shaver with magnetic attraction structure according to claim 8, wherein, When the positioning contour (132) and the coordination contour (212) are positioned and matched, multiple magnetic pieces (3) contact and adsorb each other.
10. The electric shaver with magnetic attraction structure according to claim 1, wherein The tool bit seat (21) is provided with mounting rack (213), and the circular cutter (22) is rotatably installed in the mounting rack (213).