Magnetic levitation swing motor with dynamic balancing mechanism and electric clipper

Abstract

The utility model provides a kind of magnetic suspension swing motor and electric clipper with dynamic balance mechanism, including base and stator assembly and swing subassembly installed in base;Swing subassembly includes swing bar, magnetically permeable steel, magnet group, first swing piece, second swing piece and shock absorber, magnetically permeable steel is installed in the back side of swing bar, magnet group is installed in the back side of magnetically permeable steel;Swing bar, first swing piece, shock absorber and second swing piece are sequentially enclosed to form quadrilateral structure, and the middle part of first swing piece and the middle part of second swing piece are fixedly connected with base;Stator assembly is fixedly installed in base, and located inside quadrilateral structure, the utility model generates attractive force and repulsive force by alternating magnetic field generated by stator assembly and front end magnet, to drive swing bar reciprocating swing, it is smaller to occupy space, and avoid the problem of wear and tear between components, vibration can be transmitted to rear shock absorber by swing piece when working, the effect of damper balancer is played, to realize vibration damping.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a magnetic levitation swing motor with a dynamic balancing mechanism and an electric clipper. Background Technology

[0002] Currently, in the use of hair clippers, the blades used to cut hair need to move back and forth at a high frequency. This process requires a motor and a transmission structure. For this function, the commonly used transmission structure is usually a motor driving an eccentric wheel to rotate at high speed. The eccentric wheel is connected to the end of the blade holder, thereby driving the blade to move back and forth at a high frequency. The defects of this structure are as follows:

[0003] 1. Since the eccentric wheel and the tool holder need to be rotated to achieve the above transmission process, there is friction between the two during the rotational connection. In high-frequency rotational applications, the wear of the rotational connection point between the eccentric wheel and the tool holder is accelerated, requiring frequent replacement and increasing costs.

[0004] 2. The use of an eccentric wheel drive structure requires a larger internal cavity for the clipper housing, which necessitates that the end of the clipper near the blade be designed to be larger, increasing the overall size of the clipper.

[0005] Patent document CN223004375U discloses a reciprocating swing device, including a base, a motor, an eccentric wheel, a connecting rod, a swing member, and a movable connecting part. The motor is mounted on the base, the lower part of the eccentric wheel is connected to the output shaft of the motor, the first end of the connecting rod is rotatably connected to the upper part of the eccentric wheel, the swing member is pivotally connected to one side of the base, and the first end of the swing member extends outward to form a swing arm, so that the swing arm reciprocates around the pivot axis. The pivot axis of the swing arm is perpendicular to the rotation axis of the eccentric wheel. The movable connecting part includes an opening structure and a movable head. One of the opening structure and the movable head is located at the second end of the connecting rod, and the other of the opening structure and the movable head is located at the second end of the swing member. The movable head is movably embedded in the opening structure, thereby making the reciprocating swing mechanism more stable. This swing device uses an eccentric wheel drive structure, which has the aforementioned problems of easy wear and large space occupation. Utility Model Content

[0006] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a magnetic levitation swing motor and electric clippers with a dynamic balancing mechanism.

[0007] The magnetic levitation swing motor with dynamic balancing mechanism provided by this utility model includes a base and a stator assembly and a swing assembly installed in the base.

[0008] The swing assembly includes a swing rod, a magnetic steel, a magnet assembly, a first swing plate, a second swing plate, and a shock absorber. The magnetic steel is installed on the rear side of the swing rod, and the magnet assembly is installed on the rear side of the magnetic steel.

[0009] The front ends of the first and second oscillating plates are respectively connected to the two ends of the swing rod, and the rear ends of the first and second oscillating plates are respectively connected to the two ends of the shock absorber.

[0010] The swing arm, the first swing plate, the shock absorber, and the second swing plate are sequentially arranged to form a quadrilateral structure, and the middle part of the first swing plate and the middle part of the second swing plate are fixedly connected to the base.

[0011] The stator assembly is fixedly installed in the base and located inside the quadrilateral structure. It is used to generate an alternating magnetic field, and the magnet group is used to drive the pendulum to reciprocate under the action of the alternating magnetic field.

[0012] Preferably, the stator assembly includes a silicon steel sheet laminate assembly, enameled wire, and a coil bobbin;

[0013] The enameled wire is wound on the coil frame, the coil frame is inserted into the silicon steel sheet stack assembly, the silicon steel sheet stack assembly is fixedly installed in the base by silicon steel sheet fixing screws and limited by silicon steel sheet limiting screws.

[0014] Preferably, the enameled wire includes a first enameled wire and a second enameled wire, and the ends of the first enameled wire and the ends of the second enameled wire are respectively connected to an alternating positive and negative AC power supply device.

[0015] Preferably, the magnet assembly includes a first magnet and a second magnet, the first magnet and the second magnet having opposite magnetic pole directions and being mounted side by side on the rear side of the magnetic steel.

[0016] Preferably, the first oscillating plate and the second oscillating plate are symmetrically arranged with respect to the base;

[0017] The middle parts of the first and second oscillating plates are both fixed to the base by oscillating plate fixing screws.

[0018] Preferably, the front ends of the first oscillating plate and the second oscillating plate are both fixed to the oscillating rod by oscillating plate fixing screws, and there is an oscillation gap between the oscillating rod and the base and stator assembly.

[0019] Preferably, the rear ends of the first oscillating plate and the rear ends of the second oscillating plate are both fixed to the shock-absorbing block by oscillating plate fixing screws.

[0020] Preferably, the swing arm includes a swing arm body and a mounting base, and the swing arm body is mounted on the front side of the mounting base;

[0021] The magnetic steel is installed on the rear side of the mounting base, and the two ends of the mounting base are fixedly connected to the front end of the first swing plate and the front end of the second swing plate, respectively.

[0022] Preferably, a first swing arm limiting spring and a second swing arm limiting spring are respectively installed on both sides of the swing arm body and the inner wall of the base.

[0023] The electric clipper provided by this utility model uses a magnetic levitation swing motor with a dynamic balancing mechanism.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention utilizes the alternating magnetic field generated by the stator assembly to create attractive and repulsive forces with the front magnet, thereby driving the pendulum to swing back and forth in a magnetically levitated manner. It occupies less space and avoids the problem of wear between components. Furthermore, by connecting the swing plate to the shock absorber block on the rear side of the pendulum, the vibration can be transmitted to the rear shock absorber block through the swing plate during swinging, which acts as a damping balancer and thus achieves vibration reduction. Attached Figure Description

[0026] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1 This is an exploded view of the present invention;

[0028] Figure 2 This is a schematic diagram of the stator assembly in this utility model;

[0029] Figure 3 This is a schematic diagram of the swing component in this utility model;

[0030] Figure 4 This is a schematic diagram of the assembly of the magnetic field generating mechanism and the swing component in this utility model;

[0031] Figure 5 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 6 This is a top-view structural diagram of the present invention.

[0033] The diagram shows:

[0034] Pendulum 1, First Swing Plate 9

[0035] First swing arm limit spring 2, silicon steel sheet limit screw 10

[0036] Magnetic steel 3, shock absorber 11

[0037] First magnet 4, silicon steel sheet laminated assembly 12

[0038] Second magnet 5; Second oscillating plate 13

[0039] Base 6, Enamelled wire 14

[0040] Silicon steel sheet fixing screws 7; coil frame 15

[0041] 8 oscillating plate fixing screws; 16 second oscillating rod limiting springs Detailed Implementation

[0042] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0043] This utility model discloses a magnetic levitation swing motor and electric clippers with a dynamic balancing mechanism. The swing arm is driven to swing back and forth in a magnetic levitation manner by the attraction and repulsion forces generated by the alternating magnetic field and the magnet. It occupies less space and avoids wear between parts. By connecting the swing arm to the shock absorber block through the swing plate on the rear side, the vibration can be transmitted to the shock absorber block at the rear through the swing plate during swing, which can play the role of a damping balancer and thus achieve vibration reduction.

[0044] According to the magnetic levitation swing motor with dynamic balancing mechanism provided by this utility model, such as Figure 1 , Figure 5 As shown, it includes a base 6 and a stator assembly and an oscillating assembly installed in the base 6. The stator assembly is fixedly installed in the base 6, and a gap is reserved between the oscillating assembly, the stator assembly, and the base 6 for reciprocating oscillation.

[0045] like Figure 3As shown, the swing assembly includes a swing rod 1, a magnetic steel 3, a magnet assembly, a first swing plate 9, a second swing plate 13, and a damping block 11. The magnetic steel 3 is installed on the rear side of the swing rod 1, and the magnet assembly is installed on the rear side of the magnetic steel 3. The front ends of the first swing plate 9 and the second swing plate 13 are respectively connected to the two ends of the swing rod 1, and the rear ends of the first swing plate 9 and the second swing plate 13 are respectively connected to the two ends of the damping block 11. The swing rod 1, the first swing plate 9, the damping block 11, and the second swing plate 13 are sequentially arranged to form a quadrilateral structure. The middle parts of the first swing plate 9 and the middle parts of the second swing plate 13 are fixedly connected to the base 6. By designing the swing plate as a parallelogram mechanism, fixed in the middle to the base 6, and adding a damping block 11 at the tail, it plays the role of a damping balancer, thereby reducing vibration. The swing plate is made of an elastic element that can transmit vibration to the damping block 11 at the tail.

[0046] like Figure 4 As shown, the stator assembly is fixedly installed in the base 6 and located inside the quadrilateral structure, used to generate an alternating magnetic field. The magnet assembly is used to drive the pendulum 1 to reciprocate under the action of the alternating magnetic field. In a preferred embodiment, as shown... Figure 2 As shown, the stator assembly includes a silicon steel sheet laminate assembly 12, enameled wire 14, and a coil frame 15. The enameled wire 14 is wound around the coil frame 15, and the coil frame 15 is inserted into the silicon steel sheet laminate assembly 12. The silicon steel sheet laminate assembly 12 is fixedly installed in the base 6 by silicon steel sheet fixing screws 7 and limited by silicon steel sheet limiting screws 10. The enameled wire 14 includes a first enameled wire and a second enameled wire, and the ends of the first enameled wire and the second enameled wire are respectively connected to an alternating positive and negative AC power supply device. In a more preferred embodiment, the magnet group includes a first magnet 4 and a second magnet 5. The magnetic poles of the first magnet 4 and the second magnet 5 are opposite and are installed side by side on the rear side of the magnetic conductor steel 3, wherein the first magnet 4 is magnet N and the second magnet 3 is magnet S.

[0047] The working principle of this utility model is as follows:

[0048] Enameled wire 14 is connected to an alternating current to form an alternating magnetic field. The magnetic field is guided by the silicon steel sheet laminate assembly 12 to form an effective ring magnetic field. The magnetic field repels or attracts magnets N and S, generating attractive and repulsive forces. Since the middle part of the swing plate is fixed on the base 6 and cannot move, the swing rod 1 moves parallel to the first direction under the action of attractive and repulsive forces. The swing rod 1 can drive the cutting device to make left and right cuts. The left and right movement of the swing rod 1 and the swing plate will generate vibration. This vibration will be transmitted along the swing plate to the damping block 11. The damping block 11 will move slightly in the opposite direction to cancel the vibration.

[0049] In a preferred embodiment, the first oscillating plate 9 and the second oscillating plate 13 are symmetrically arranged relative to the base 6, and both the first oscillating plate 9 and the second oscillating plate 13 are elastic elements. The middle portions of the first oscillating plate 9 and the second oscillating plate 13 are fixed to the base 6 by oscillating plate fixing screws 8. The front ends of the first oscillating plate 9 and the second oscillating plate 13 are fixed to the swing rod 1 by oscillating plate fixing screws 8, and there is an oscillation gap between the swing rod 1, the base 6, and the stator assembly. The rear ends of the first oscillating plate 9 and the rear ends of the second oscillating plate 13 are fixed to the damping block 11 by oscillating plate fixing screws 8. The swing rod 1, the first oscillating plate 9, the damping block 11, and the second oscillating plate 13 sequentially form a quadrilateral structure. The middle portion of this quadrilateral structure is fixed to the base 6, while the two ends are not fixed. Therefore, the two ends can achieve slight reverse movement, thereby offsetting the vibration generated by the swing rod 1 through the damping block 11 at the tail end.

[0050] In a preferred embodiment, the swing arm 1 includes a swing arm body and a mounting base. The swing arm body is mounted on the front side of the mounting base; the magnetic steel 3 is mounted on the rear side of the mounting base. The two ends of the mounting base are fixedly connected to the front ends of the first swing plate 9 and the second swing plate 13, respectively. Symmetrical first swing arm limiting springs 2 and second swing arm limiting springs 16 are respectively installed between the two sides of the swing arm body and the inner wall of the base 6. The first swing arm limiting springs 2 and second swing arm limiting springs 16 are used to limit the movement of the swing arm 1 on both sides. Furthermore, they can also realize the power-off reset function. Specifically, when the stator assembly is energized, the swing arm 1 moves against the elastic force of the limiting springs on both sides under the drive of the magnet. When the stator assembly is de-energized, the swing arm 1 returns to the neutral position under the action of the elastic force of the springs on both sides.

[0051] According to the electric clipper provided by this utility model, the magnetic levitation swing motor with dynamic balancing mechanism is used.

[0052] In existing magnetic levitation swing schemes, bidirectional staggered swing is usually used to reduce the vibration of the whole machine. However, bidirectional swing will lose 50% of the force. Even with the upper and lower linkage, there is still a considerable loss. This utility model adopts a single-piece swing arm design and adds a cantilevered counterweight block at the tail of the motor to act as a damping balancer, thereby reducing vibration. Compared with linear motors on the market, this motor has greater power and is less prone to force attenuation.

[0053] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0054] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A magnetic levitation oscillating motor with a dynamic balancing mechanism, characterized in that, Includes a base (6) and a stator assembly and a swing assembly mounted in the base (6); The swing assembly includes a swing rod (1), a magnetic steel (3), a magnet assembly, a first swing plate (9), a second swing plate (13), and a shock absorber (11). The magnetic steel (3) is installed on the rear side of the swing rod (1), and the magnet assembly is installed on the rear side of the magnetic steel (3). The front ends of the first swing plate (9) and the second swing plate (13) are respectively connected to the two ends of the swing rod (1), and the rear ends of the first swing plate (9) and the second swing plate (13) are respectively connected to the two ends of the shock absorber (11). The swing rod (1), the first swing plate (9), the shock absorber (11) and the second swing plate (13) are arranged in sequence to form a quadrilateral structure. The middle part of the first swing plate (9) and the middle part of the second swing plate (13) are fixedly connected to the base (6). The stator assembly is fixedly installed in the base (6) and located inside the quadrilateral structure. It is used to generate an alternating magnetic field. The magnet assembly is used to drive the pendulum (1) to reciprocate under the action of the alternating magnetic field.

2. The magnetic levitation oscillating motor with a dynamic balancing mechanism according to claim 1, characterized in that, The stator assembly includes a silicon steel sheet laminate assembly (12), enameled wire (14), and a coil frame (15); The enameled wire (14) is wound on the coil frame (15), the coil frame (15) is inserted into the silicon steel sheet stack assembly (12), the silicon steel sheet stack assembly (12) is fixedly installed in the base (6) by silicon steel sheet fixing screws (7), and is limited by silicon steel sheet limiting screws (10).

3. The magnetic levitation oscillating motor with a dynamic balancing mechanism according to claim 2, characterized in that, The enameled wire (14) includes a first enameled wire and a second enameled wire, and the ends of the first enameled wire and the second enameled wire are respectively connected to an alternating positive and negative AC power supply device.

4. The magnetic levitation oscillating motor with a dynamic balancing mechanism according to claim 1, characterized in that, The magnet assembly includes a first magnet (4) and a second magnet (5), the magnetic poles of the first magnet (4) and the second magnet (5) are opposite in direction and are mounted side by side on the rear side of the magnetic steel (3).

5. The magnetic levitation oscillating motor with a dynamic balancing mechanism according to claim 1, characterized in that, The first swing plate (9) and the second swing plate (13) are symmetrically arranged with respect to the base (6), and both the first swing plate (9) and the second swing plate (13) are elastic elements; The middle part of the first swing plate (9) and the middle part of the second swing plate (13) are both fixed to the base (6) by swing plate fixing screws (8).

6. The magnetic levitation oscillating motor with a dynamic balancing mechanism according to claim 1, characterized in that, The front end of the first swing plate (9) and the front end of the second swing plate (13) are both fixed to the swing rod (1) by the swing plate fixing screw (8), and there is a swing gap between the swing rod (1), the base (6), and the stator assembly.

7. The magnetic levitation oscillating motor with a dynamic balancing mechanism according to claim 1, characterized in that, The rear ends of the first swing plate (9) and the second swing plate (13) are both fixed to the shock absorber (11) by the swing plate fixing screw (8).

8. The magnetic levitation oscillating motor with a dynamic balancing mechanism according to claim 1, characterized in that, The swing arm (1) includes a swing arm body and a mounting base, wherein the swing arm body is mounted on the front side of the mounting base; The magnetic steel (3) is installed on the rear side of the mounting base, and the two ends of the mounting base are fixedly connected to the front end of the first swing plate (9) and the front end of the second swing plate (13), respectively.

9. The magnetic levitation oscillating motor with a dynamic balancing mechanism according to claim 8, characterized in that, A first swing arm limiting spring (2) and a second swing arm limiting spring (16) are respectively installed on both sides of the swing arm body and between the inner wall of the base (6).

10. An electric hair clipper, characterized in that, The magnetic levitation swing motor with dynamic balancing mechanism described in any one of claims 1-9 is adopted.

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