Magnetic suspension motor

Abstract

The utility model discloses a magnetic suspension motor, which comprises a mounting bracket, a stator coil, a first magnet, a second magnet, a first oscillating rod and a second oscillating rod, the stator coil is fixedly mounted on the mounting bracket; the first swing rod and the second swing rod are arranged in parallel, and the mounting support is located between the first swing rod and the second swing rod. The two ends of the first swing rod are fixedly connected with the mounting support through first elastic pieces correspondingly. The first magnet is fixedly installed on the side, close to the installation support, of the first swing rod and is opposite to one end of the stator coil. The two ends of the second swing rod are fixedly connected with the mounting bracket through second elastic sheets, and the second magnet is fixedly mounted on the side, close to the mounting bracket, of the second swing rod and is opposite to the other end of the stator coil; and the first oscillating rod and the second oscillating rod can reciprocate in a staggered manner after the stator coil is electrified. According to the utility model, vibration of the motor can be counteracted.

Description

Technical Field

[0001] The utility model relates to the technical field of shavers, in particular to a magnetic suspension motor for shavers. Background Art

[0002] The reciprocating magnetic suspension linear motor is also called a linear motor. It is mainly composed of a moving component (mover) and a driving component (stator). The moving component includes a permanent magnet, and the driving component includes an electromagnet composed of a coil wound around an iron core. There is a certain gap between the permanent magnet and the iron core coil. The permanent magnet of the reciprocating linear motor reciprocates at a certain frequency relative to the iron core coil. At this time, an elastic support mechanism is required to provide support to ensure the gap between the permanent magnet and the iron core. At the same time, the elastic support mechanism can also provide elastic restoring force for the reciprocating motion of the permanent magnet.

[0003] In the linear motor in the prior art, the permanent magnet and the outer base are connected by a spring clip, and the spring clip is directly welded to the base or the outer shell, which will affect its metal properties and thus affect the vibration frequency of the spring clip, making the natural frequency of the spring clip and the permanent magnet have low consistency with the frequency of the current change direction, thereby affecting the reciprocating motion accuracy and efficiency of the motor.

[0004] In summary, how to reduce the vibration of the magnetic levitation motor is one of the important issues to be solved urgently in this field. Utility Model Content

[0005] The utility model aims to provide a magnetic levitation motor to solve the deficiencies in the prior art. The utility model can offset the vibration of the motor and is conducive to the miniaturization design of the magnetic levitation motor.

[0006] The utility model provides a magnetic suspension motor, which comprises a mounting bracket, a stator coil, a first magnet, a second magnet, a first swing rod and a second swing rod;

[0007] The stator coil is fixedly mounted on the mounting bracket;

[0008] The first swing arm and the second swing arm are arranged in parallel, and the mounting bracket is located between the first swing arm and the second swing arm; both ends of the first swing arm are fixedly connected to the mounting bracket through first elastic sheets respectively; the first magnet is fixedly mounted on a side of the first swing arm close to the mounting bracket and opposite to one end of the stator coil;

[0009] The two ends of the second swinging rod are respectively fixedly connected to the mounting bracket through second elastic sheets, and the second magnet is fixedly mounted on a side of the second swinging rod close to the mounting bracket and opposite to the other end of the stator coil;

[0010] The first swing arm and the second swing arm can reciprocate alternately with each other after the stator coil is energized.

[0011] In the magnetic levitation motor as described above, preferably, the first spring piece is fixedly connected to one end of the mounting bracket close to the second swing rod, and the second spring piece is fixedly connected to one end of the mounting bracket close to the first swing rod.

[0012] In the magnetic levitation motor as described above, preferably, both ends of the second swing arm are fixedly connected to the upper end of the mounting bracket through two second elastic sheets; and the first elastic sheet is located between the two second elastic sheets.

[0013] A magnetic levitation motor as described above, wherein, preferably, a first avoidance groove is provided at a position where the mounting bracket is opposite to the first spring sheet, and the bottom of the first avoidance groove is inclined upward from the connection between the first spring sheet and the lower end of the mounting bracket in a direction away from the first spring sheet; a second avoidance groove is provided at a position where the mounting bracket is opposite to the second spring sheet, and the bottom of the second avoidance groove is inclined downward from the connection between the second spring sheet and the upper end of the mounting bracket in a direction away from the second spring sheet.

[0014] In the magnetic levitation motor as described above, preferably, both ends of the first swing arm are fixedly connected to the mounting bracket via two first elastic sheets.

[0015] The magnetic levitation motor as described above, preferably, further comprises a stator core, wherein the stator core is installed in the stator coil.

[0016] In the magnetic levitation motor as described above, preferably, a connecting rod is provided on a side of the first swing arm away from the mounting bracket, and the connecting rod is vertically arranged to the first swing arm.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model arranges the first swing lever and the second swing lever above and below the mounting bracket respectively, and can reciprocate in the opposite direction after the stator coil is energized, and the vibration of the motor can be offset by the interlaced reciprocating motion of the first swing lever and the second swing lever. By placing the first magnet and the second magnet at both ends of the stator coil respectively, the thickness of the motor can be reduced, which is conducive to the miniaturization design of the motor, and is suitable for products such as hair clippers and shavers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a magnetic levitation motor proposed by the utility model;

[0020] Figure 2 yes Figure 1 The main view;

[0021] Figure 3 It is a structural schematic diagram of the mounting bracket.

[0022] Description of reference numerals:

[0023] 1-mounting bracket, 2-stator coil, 3-first magnet, 4-second magnet, 5-first swing rod, 6-second swing rod, 7-first spring sheet, 8-second spring sheet, 9-stator core, 10-connecting rod, 11-first avoidance groove, 12-second avoidance groove, 101-first mounting plate, 102-second mounting plate, 103-third mounting plate, 104-fourth mounting plate. DETAILED DESCRIPTION

[0024] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] Embodiments of the present utility model: Figure 1-Figure 3 As shown, the present application proposes a magnetic levitation motor, including a mounting bracket 1, a stator coil 2, a first magnet 3, a second magnet 4, a first swing rod 5 and a second swing rod 6.

[0026] The stator coil 2 is fixedly mounted on the mounting bracket 1, the first swing rod 5 and the second swing rod 6 are arranged in parallel, the mounting bracket 1 is located between the first swing rod 5 and the second swing rod 6, and has no contact with the first swing rod 5 and the second swing rod 6; the two ends of the first swing rod 5 are fixedly connected to the mounting bracket 1 through the first spring piece 7 respectively; the first magnet 3 is fixedly mounted on the side of the first swing rod 5 close to the mounting bracket 1, and is opposite to one end of the stator coil 2.

[0027] Both ends of the second swing rod 6 are fixedly connected to the mounting bracket 1 through second elastic sheets 8 , respectively. The second magnet 4 is fixedly mounted on one side of the second swing rod 6 close to the mounting bracket 1 and opposite to the other end of the stator coil 2 .

[0028] The first swing arm 5 and the second swing arm 6 can make reciprocating movements in an alternating manner after the stator coil 2 is energized.

[0029] Furthermore, the mounting bracket 1 includes a first mounting plate 101, a second mounting plate 102, a third mounting plate 103 and a fourth mounting plate 104, the first mounting plate 101 and the second mounting plate 102 are arranged in parallel, the third mounting plate 103 and the fourth mounting plate 104 are fixedly connected to the first mounting plate 101 and the second mounting plate 102 by welding; the first mounting plate 101, the second mounting plate 102, the third mounting plate 103 and the fourth mounting plate 104 form a frame structure, the stator coil 2 is fixedly installed in the frame, and a stator core 9 is also installed in the stator coil 2, and both ends of the stator core 9 pass through the first mounting plate 101 and the second mounting plate 102 respectively, and the two ends of the stator core 9 are respectively opposite to the first magnet 3 and the second magnet 4, and are not in contact with each other.

[0030] A connecting rod 10 is provided on one side of the first swinging rod 5 away from the mounting bracket 1, and the connecting rod 10 is arranged perpendicular to the first swinging rod 5. The connecting rod 10 is used to connect with a razor blade or the like.

[0031] The first spring piece 7 is fixedly connected to one end of the mounting bracket 1 close to the second swing rod 6 by welding, and the second spring piece 8 is fixedly connected to one end of the mounting bracket 1 close to the first swing rod 5 by welding.

[0032] As a preferred embodiment, both ends of the second swing arm 6 are fixedly connected to the mounting bracket 1 through two second spring clips 8, and both ends of the first swing arm 5 are fixedly connected to the mounting bracket 1 through two first spring clips 7; the first spring clip 7 located on the same side of the mounting bracket 1 is located between the two second spring clips 8.

[0033] The first swing rod 5 and the second swing rod 6 can move back and forth alternately after the stator coil 2 is energized. In order to avoid interference between the first spring sheet 7 and the second spring sheet 8 and the mounting bracket 1 when the first spring sheet 7 and the second spring sheet 8 are driven to swing during the movement, thereby affecting the swing, the following measures are adopted: a first avoidance groove 11 is provided at the mounting bracket 1 opposite to the first spring sheet 7, and the bottom of the first avoidance groove 11 is tilted upward from the connection between the first spring sheet 7 and the mounting bracket 1 in a direction away from the first spring sheet 7; a second avoidance groove 12 is provided at the mounting bracket 1 opposite to the second spring sheet 8, and the bottom of the second avoidance groove 12 is tilted downward from the connection between the second spring sheet 8 and the mounting bracket 1 in a direction away from the second spring sheet 8. The up and down here refers to when the stator coil 2 is placed vertically, that is, when the first swing rod 5 is located at the top of the entire motor.

[0034] When in use, the stator coil 2 is used to control the first magnet 3 and the second magnet 4 to swing in opposite directions at the same speed at the same time. The reverse swing here means that the first magnet 3 swings to the left, and the second magnet 4 swings to the right, so as to offset the vibration, thereby achieving the effect of offsetting the vibration.

[0035] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above are only preferred embodiments of the present invention, but the scope of implementation of the present invention is not limited to what is shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A magnetic levitation motor, characterized in that: It comprises a mounting bracket (1), a stator coil (2), a first magnet (3), a second magnet (4), a first swinging rod (5) and a second swinging rod (6); The stator coil (2) is fixedly mounted on the mounting bracket (1); the first swing rod (5) and the second swing rod (6) are arranged in parallel, and the mounting bracket (1) is located between the first swing rod (5) and the second swing rod (6); both ends of the first swing rod (5) are fixedly connected to the mounting bracket (1) via first spring plates (7); the first magnet (3) is fixedly mounted on a side of the first swing rod (5) close to the mounting bracket (1) and opposite to one end of the stator coil (2); The two ends of the second swing rod (6) are respectively fixedly connected to the mounting bracket (1) via second spring sheets (8); the second magnet (4) is fixedly mounted on a side of the second swing rod (6) close to the mounting bracket (1) and opposite to the other end of the stator coil (2); The first swing arm (5) and the second swing arm (6) are capable of mutually interlaced reciprocating motion after the stator coil (2) is energized.

2. The magnetic levitation motor according to claim 1, characterized in that: The first spring piece (7) is fixedly connected to one end of the mounting bracket (1) close to the second swing rod (6), and the second spring piece (8) is fixedly connected to one end of the mounting bracket (1) close to the first swing rod (5).

3. The magnetic levitation motor according to claim 2, characterized in that: Both ends of the second swinging rod (6) are fixedly connected to the mounting bracket (1) via two second elastic sheets (8); the first elastic sheet (7) is located between the two second elastic sheets (8).

4. The magnetic levitation motor according to claim 3, characterized in that: A first avoidance groove (11) is provided at a position where the mounting bracket (1) is opposite to the first spring sheet (7), and the bottom of the first avoidance groove (11) is arranged to be inclined upward from the connection between the first spring sheet (7) and the mounting bracket (1) in a direction away from the first spring sheet (7); a second avoidance groove (12) is provided at a position where the mounting bracket (1) is opposite to the second spring sheet (8), and the bottom of the second avoidance groove (12) is arranged to be inclined downward from the connection between the second spring sheet (8) and the mounting bracket (1) in a direction away from the second spring sheet (8).

5. The magnetic levitation motor according to claim 2, characterized in that: Both ends of the first swing rod (5) are fixedly connected to the mounting bracket (1) via two first elastic sheets (7).

6. The magnetic levitation motor according to claim 1, characterized in that: It also includes a stator core (9), which is installed in the stator coil (2).

7. The magnetic levitation motor according to claim 1, characterized in that: A connecting rod (10) is provided on a side of the first swing rod (5) away from the mounting bracket (1), and the connecting rod (10) is arranged perpendicular to the first swing rod (5).

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