Electric clipper

Abstract

The invention discloses an electric clipper, comprising: a mover unit having a permanent magnet and a pendulum shaft for driving a load; the stator unit forms a magnetic field acting with the permanent magnet; the cutter head unit is divided into a movable cutter and a static cutter, and the movable cutter is linked with the pendulum shaft; and the bracket is used for fixing each functional unit. The mover unit, the stator unit and the tool bit unit are integrally installed on the support, and compared with an existing mode, the requirement for the assembly precision of parts is lowered, the production and assembly process is simplified, the reject ratio is lowered, and the manufacturing cost is lowered; each unit realizes modular design, is good in universality and convenient to assemble, and is suitable for mass production of products of multiple specifications; meanwhile, vibration and energy consumption are effectively controlled through the optimized design of the mover unit and the tool bit unit, noise is reduced, and user experience is improved; in addition, the elastic connecting piece and the auxiliary elastic piece are reasonably arranged, so that the resonance effect of the product is enhanced, and the risk of component failure caused by vibration and heating is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of small personal care appliances, and in particular to an electric hair clipper. Background Art

[0002] Electric hair clippers are small electric hair trimming appliances that use motors as power mechanisms, and are mainly composed of a cutter head, a housing, a movement, and a power supply. The movement and power supply are installed inside the housing, a static cutter is installed at the head of the housing, and a handle structure is formed on the outside of the housing; the movement is divided into a moving unit and a static unit, the moving unit contains a permanent magnet, a moving cutter is installed at the head of the moving unit, and the static unit drives the moving unit to reciprocate through the alternating magnetic field formed by the coil and the iron core; the moving cutter and the static cutter together form a cutter head unit.

[0003] In existing electric hair clippers, the static blade and the stator unit are respectively fixed to the outer shell, while the movable blade and the movable unit are indirectly installed on the outer shell. This structure has the following defects: (1) The overall structure is relatively bloated, and the electric hair clipper is large in size and weight; (2) Each component requires precise installation, which increases the difficulty of production and assembly and increases manufacturing costs; (3) The transmission vibration problem is obvious, the energy consumption is high, and the noise is loud; (4) Vibration and heat may cause the components to loosen or fail, reducing the reliability of the product; (5) The functional requirements of the outer shell restrict product improvement and personalized design, and product innovation is limited. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the existing electric hair clippers, the present invention provides an electric hair clipper.

[0005] The technical solution adopted by the present invention is as follows: an electric hair clipper, comprising: a mover unit, having a permanent magnet and a swing shaft for driving a load; a stator unit, forming a magnetic field that interacts with the permanent magnet; a cutter head unit, divided into a moving cutter and a stationary cutter, the moving cutter being linked to the swing shaft; a bracket, used for fixedly installing the stator unit and the stationary cutter, and movably installing the mover unit.

[0006] Preferably, the mover unit comprises: a swing frame, the permanent magnet is mounted on one side facing the stator unit, and the swing shaft is mounted on the other side; an elastic connector, one end of which is mounted on the first mounting portion of the bracket, and the other end is connected and fixed to the swing frame.

[0007] Preferably, the elastic connecting member is connected to both sides of the swing frame in the form of a pull rod or a support rod.

[0008] Preferably, the elastic connecting member is a plurality of layers of elastic sheets which are stacked or arranged in parallel.

[0009] Preferably, the mover unit further includes an auxiliary elastic member, and the elastic force direction of the auxiliary elastic member is consistent with the swing direction of the swing frame.

[0010] Preferably, the mover units have two groups, which are arranged in parallel front and back and the permanent magnets are arranged with opposite polarities, and only one group of the mover units is provided with the swing shaft; it also includes a balancing rocker arm, the middle part of which is hinged to the bracket, and the two ends are respectively hinged to the shoulders on the same side of the two swing frames.

[0011] Preferably, the swing frame has a driving frame connected as an integral unit, and the elastic connecting member is connected to the driving frame.

[0012] Preferably, a snap-fit ​​structure is formed on a side of the swing frame facing the stator unit, and the permanent magnet is snap-fitted into the snap-fit ​​structure.

[0013] Preferably, the stator unit includes a mountain-shaped iron core and a coil, which are mounted on the second mounting portion of the bracket.

[0014] Preferably, the static knife is fixedly or movably mounted on the third mounting portion of the bracket head.

[0015] Preferably, guide rail grooves are provided on both sides of the third mounting portion, and guide rails are correspondingly provided on both sides of the knife seat, and the guide rails are slidably installed in the guide rail grooves.

[0016] The present invention has the following beneficial effects: 1. Integrated installation: Each functional unit is integrated and installed on the bracket, which reduces the requirements for precise installation of components, simplifies the production and assembly process, reduces the defect rate in the production and assembly process, and reduces manufacturing costs; 2. Modularity: Each functional unit adopts a modular structure, with good versatility between modules and easy assembly, which is suitable for mass production of products with multiple specifications; 3. Compact design: By designing the mover unit, stator unit and cutter head unit as an integrated structure, the redundancy and complex connection between components are reduced, and the overall volume and weight are reduced; 4. Vibration control and energy efficiency improvement: By optimizing the design of the mover unit and the cutter unit, the vibration during the transmission process is reduced, the energy consumption is reduced, the noise generated during operation is reduced, and the user experience is improved; 5. Enhanced reliability: The elastic connectors and auxiliary elastic parts are rationally arranged to reduce the possibility of component loosening or failure due to vibration and heat, and improve the long-term reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of an embodiment of the present invention (with a handle).

[0018] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the present invention.

[0019] Figure 3 It is a front view schematic diagram of an embodiment of the present invention.

[0020] Figure 4 It is a three-dimensional schematic diagram of the bracket in the embodiment of the present invention.

[0021] Figure 5 It is a three-dimensional schematic diagram of a mover unit in an embodiment of the present invention.

[0022] Figure 6 It is a schematic diagram of the assembly of the permanent magnet, the swing frame and the driving frame in the embodiment of the present invention.

[0023] Figure 7 Schematic diagram of an elastic connector in an embodiment of the present invention.

[0024] Figure 8 It is a front view schematic diagram of a second embodiment of the present invention.

[0025] Movable unit 1, permanent magnet 101, swing shaft 102, swing frame 103, driving frame 104, elastic connecting member 105, auxiliary elastic member 106, balancing rocker arm 107, middle shaft 108, end shaft 109; Stator unit 2, iron core 201, coil 202; Cutting head unit 3, moving cutter 301, stationary cutter 302, cutter seat 303, guide rail 304; Bracket 4, first mounting portion 401, second mounting portion 402, third mounting portion 403, guide rail groove 404; Handle 5. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the embodiments and drawings.

[0027] In the embodiment, Figure 1 to Figure 7As shown, an electric clipper includes: a mover unit 1, which has a permanent magnet 101 and a swing shaft 102 for driving a load; a stator unit 2, which forms a magnetic field that interacts with the permanent magnet 101; a cutter head unit 3, which is divided into a moving cutter 301 and a stationary cutter 302, and the moving cutter 301 is linked with the swing shaft 102; a bracket 4, which is used to fix the stator unit 2 and the stationary cutter 302, and to movably install the mover unit 1. In this embodiment, the mover unit 1, the stator unit 2 and the cutter head unit 3 are integrated and installed on the same bracket 4. Compared with the existing positioning installation method, the requirements for accurate installation of components are reduced, the production and assembly process are simplified, and the defective rate in the production and assembly process is reduced, thereby reducing the manufacturing cost. Each functional unit realizes modular design, good versatility, and convenient assembly, which is suitable for mass production of products of multiple specifications. This installation method also reduces the redundancy and complex connection between components, reduces the overall volume and weight, and the vibration during the transmission process is also weakened accordingly, which reduces energy consumption, reduces the noise generated during operation, and improves the user experience.

[0028] In the embodiment, Figure 2~Figure 5 As shown, the mover unit 1 includes: a swing frame 103, with a permanent magnet 101 installed on one side facing the stator unit 2, and a swing shaft 102 installed on the other side; an elastic connector 105, one end of which is installed on the first mounting portion 401 of the bracket 4, and the other end is connected and fixed to the swing frame 103; the elastic connector 105 is connected to both sides of the swing frame 103 in the form of a pull rod. The principle of the mover unit 1 in this embodiment is consistent with the electric hair clipper linear motor disclosed in patent document CN220754621U. An integral closed mover unit 1 is formed by the swing frame 103 and the elastic connectors 105 on both sides. It has a simple installation method, a stable structure, low friction noise, and is easy to achieve high-frequency vibration. In another embodiment, as Figure 8 As shown, the elastic connector 105 is connected to both sides of the swing frame 103 in the form of a support rod. This formation can also form an integrally closed mover unit 1, providing a mover unit 1 with stable and reliable support connection.

[0029] In the embodiment, Figure 2~Figure 7 As shown, the elastic connector 105 is a stacked or parallel multi-layer spring sheet. The design of the multi-layer spring sheet makes the elastic connector 105 have higher elasticity and adaptability, can better evenly distribute the transmission of force, effectively absorb the vibration generated during the transmission process, and reduce the efficiency loss caused by uneven force on a single connection point. In addition, the multi-layer structure also enhances the durability of the elastic connector 105, making it less prone to fatigue or failure during long-term use, thereby extending its service life.

[0030] In the embodiment, Figure 2 , Figure 3As shown, the mover unit 1 also includes an auxiliary elastic member 106, and the elastic force direction of the auxiliary elastic member 106 is consistent with the swing direction of the swing frame 103. The auxiliary elastic member 106 adopts a cylindrical spring and is supported on the left and right sides of the swing frame 103. The auxiliary elastic member 106 can improve the performance and reliability of the mover unit 1 and reduce vibration noise and wear. In addition, by replacing the auxiliary elastic member 106 with different elastic moduli, the swing amplitude of the swing frame 103 can also be adjusted, so that the performance of the mover unit 1 is flexible and adjustable.

[0031] In the embodiment, Figure 2 , Figure 5 As shown, the mover unit 1 has two groups, which are arranged in parallel front and back and the permanent magnets 101 are arranged with opposite polarities, and only one group of the mover units 1 is provided with a swing shaft 102; it also includes a balancing rocker arm 107, the middle part of which is hinged to the bracket 4, and the two ends are respectively hinged to the shoulders on the same side of the two swing frames 103. This embodiment adopts the structure of a staggered oscillating double mover assembly 1, and the two groups of mover assemblies 1 present staggered oscillations in opposite directions, one left and one right, under the action of the electromagnetic force of the stator unit 2. The linkage of the two groups of mover assemblies 1 is achieved through the action of the balancing rocker arm 107. The structure of the double mover assembly B can improve the operating stability of the moving knife 301, and to a certain extent improve efficiency and reduce energy consumption.

[0032] In the embodiment, Figure 5 , Figure 6 As shown, the swing frame 103 has a drive frame 104 connected as one body, and the elastic connector 105 is connected to the drive frame 104, requiring the mechanical properties of the drive frame 104 material to be better than the swing frame 103. Specifically, the swing frame 103 is a plastic part, and the drive frame 104 is a metal part. The drive frame 104 and the swing frame 103 can be fixed as one body by means of threaded connection or the like, and the drive frame 104 can also be used as an insert and injection molded as one body with the swing frame 103. Plastic parts can reduce the overall weight and are easy to process and shape, while metal parts have better rigidity and fatigue resistance. Therefore, the combination of the plastic swing frame 103 and the metal drive frame 104 gives the mover unit 1 the dual advantages of lightweight and reliability. In particular, the insert injection molding process also makes the mover unit 1 more integrated, reduces the number of components, improves assembly efficiency, and helps to reduce vibration and noise, thereby improving overall performance.

[0033] In the embodiment, Figure 5 , Figure 6As shown, a snap-fit ​​structure is formed on the side of the swing frame 103 facing the stator unit 2, and the permanent magnet 101 is snapped into the snap-fit ​​structure. The snap-fit ​​structure simplifies the installation process of the permanent magnet 101, making the assembly faster and more efficient. In conjunction with the end shaft 109 and the limiting protrusion of the swing frame 103, the permanent magnet 101 can firmly form an integrated structure with the drive frame 104 and the swing frame 103, thereby improving the stability and reliability of the overall structure, ensuring that the position of the permanent magnet 101 in the swing frame 103 is fixed, and helping to form a better magnetic field distribution, thereby improving the working efficiency and performance of the electric clipper.

[0034] In the embodiment, Figure 2~Figure 4 As shown, the stator unit 2 includes a mountain-shaped iron core 201 and a coil 202, which are mounted on the second mounting portion 402 of the bracket 4. This structure enables the alternating magnetic field generated by the stator unit 2 to face the permanent magnet 101, optimizes the electromagnetic performance, and can effectively enhance the magnetic field strength, thereby providing higher power output and work efficiency.

[0035] In the embodiment, Figure 2 , Figure 4 As shown, the static knife 302 can be fixed to the third mounting portion 403 as a whole by means of a buckle or screw connection, or can be easily adjusted by means of a movable connection. Specifically, guide rail grooves 404 are provided on both sides of the third mounting portion 403, and guide rails 304 are correspondingly provided on both sides of the knife holder 303, and the guide rails 304 can be slidably installed in the guide rail grooves 404. A locking structure is also provided between the guide rails 304 and the guide rail grooves 404, which can ensure that the static knife 302 is fixed at the set position without loosening, and at the same time facilitate the adjustment of the distance between the static knife 302 and the movable knife 301, thereby improving the user experience.

[0036] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation methods of the present invention. Other obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.

Claims

1. An electric hair clipper, characterized in that: include: A mover unit (1) having a permanent magnet (101) and a swing shaft (102) for driving a load; A stator unit (2) that forms a magnetic field that interacts with the permanent magnet (101); The cutter head unit (3) is divided into a moving cutter (301) and a stationary cutter (302), wherein the moving cutter (301) is linked to the swing shaft (102); The bracket (4) is used for fixedly mounting the stator unit (2) and the stationary blade (302), and for movably mounting the mover unit (1).

2. The electric hair clipper according to claim 1, characterized in that: The mover unit (1) comprises: A swing frame (103), the permanent magnet (101) being mounted on one side facing the stator unit (2), and the swing shaft (102) being mounted on the other side; An elastic connecting member (105) has one end mounted on the first mounting portion (401) of the bracket (4) and the other end connected and fixed to the swing frame (103).

3. The electric hair clipper according to claim 2, characterized in that: The elastic connecting member (105) is connected to both sides of the swing frame (103) in the form of a pull rod or a support rod.

4. The electric hair clipper according to claim 2 or 3, characterized in that: The elastic connecting member (105) is a plurality of layers of elastic sheets that are stacked or arranged in parallel.

5. The electric hair clipper according to claim 2, characterized in that: The mover unit (1) further comprises an auxiliary elastic member (106), wherein the elastic force direction of the auxiliary elastic member (106) is consistent with the swing direction of the swing frame (103).

6. The electric hair clipper according to claim 2, characterized in that: The mover units (1) have two groups, which are arranged in parallel front and back, and the permanent magnets (101) are arranged with opposite polarities, and only one group of the mover units (1) is provided with the swing shaft (102); It also comprises a balancing rocker arm (107), the middle portion of the balancing rocker arm (107) being hinged to the bracket (4), and the two ends of the balancing rocker arm (107) being respectively hinged to the shoulders on the same side of the two swing frames (103).

7. The electric hair clipper according to claim 2, characterized in that: The swing frame (103) has a driving frame (104) connected as an integral unit, and the elastic connecting member (105) is connected to the driving frame (104).

8. The electric hair clipper according to claim 2, characterized in that: A snap-fit ​​structure is formed on the side of the swing frame (103) facing the stator unit (2), and the permanent magnet (101) is snap-fitted into the snap-fit ​​structure.

9. The electric hair clipper according to claim 1, characterized in that: The stator unit (2) comprises a mountain-shaped iron core (201) and a coil (202), and is mounted on a second mounting portion (402) of the bracket (4).

10. The electric hair clipper according to claim 1, characterized in that: The static knife (302) is fixedly or movably mounted on the third mounting portion (403) of the head of the bracket (4).

11. The electric hair clipper according to claim 10, characterized in that: Guide rail grooves (404) are provided on both sides of the third mounting portion (403), and guide rails (304) are correspondingly provided on both sides of the knife seat (303), and the guide rails (304) are slidably mounted in the guide rail grooves (404).

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