CN219247680U - Reciprocating oscillation high-frequency linear motor - Google Patents
Reciprocating oscillation high-frequency linear motor Download PDFInfo
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- CN219247680U CN219247680U CN202222477191.3U CN202222477191U CN219247680U CN 219247680 U CN219247680 U CN 219247680U CN 202222477191 U CN202222477191 U CN 202222477191U CN 219247680 U CN219247680 U CN 219247680U
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- magnetic shoe
- central shaft
- magnet
- linear motor
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Abstract
A reciprocating oscillation high-frequency linear motor comprises a stator core, a coil, an elastic sheet, a central shaft, a rotor piece and a magnet, wherein the stator core is in a cylinder shape with two open ends, and a convex magnetic shoe part is arranged on the inner wall of the stator core; the coil is sleeved on the magnetic shoe part; the elastic sheet is fixedly arranged on the open end of the stator core; two ends of the central shaft are respectively connected with the elastic pieces, and the central shaft is spaced from the magnetic shoe part; the rotor piece is fixedly sleeved on the central shaft and is spaced from the magnetic shoe part; the magnet is arranged on the rotor piece and faces the magnetic shoe part; the magnet is spaced from the magnetic shoe part; when the coil is connected with a working power supply, the magnetic shoe part can generate alternate magnetic poles to interact with the magnet so as to drive the mover and the central shaft to reciprocate along the axial direction of the mover and the central shaft to form high-frequency oscillation output. The utility model has the characteristics of simple structure, large motion force, high motion frequency and long service life, and has strong practicability.
Description
[ field of technology ]
The utility model relates to a motor, in particular to a reciprocating oscillation high-frequency linear motor with simple structure and large motion force.
[ background Art ]
A linear motor is a transmission device that converts electrical energy directly into linear motion mechanical energy without any intermediate conversion mechanism. Linear motors are also known as linear motors, linear motors. The existing small linear motor is difficult to further miniaturize due to the complex structure, and the motion strength and the motion frequency of the small linear motor are required to be further improved.
[ utility model ]
The utility model aims to solve the problems and provides the reciprocating oscillation high-frequency linear motor which has simple structure, large motion force and high motion frequency.
In order to solve the problems, the utility model provides a reciprocating oscillation high-frequency linear motor which is characterized by comprising a stator core, a coil, a spring piece, a central shaft, a rotor piece and a magnet, wherein the stator core is in a cylinder shape with two open ends, and the inner wall of the stator core is provided with a convex magnetic shoe part; the coil is sleeved on the magnetic shoe part; the elastic sheet is fixedly arranged on the open end of the stator core; the two ends of the central shaft are respectively connected with the elastic pieces, and the central shaft is spaced from the magnetic shoe part; the rotor piece is fixedly sleeved on the central shaft and is spaced from the magnetic shoe part; the magnet is arranged on the rotor piece and faces the magnetic shoe part; the magnet is spaced from the magnetic shoe; when the coil is powered on, the magnetic poles which are alternately changed can be generated on the magnetic shoe part to interact with the magnet so as to drive the mover and the central shaft to reciprocate along the axial direction of the mover and the central shaft to form high-frequency oscillation output.
Further, the magnetic shoe parts are provided with a plurality of magnetic shoe parts which are symmetrically distributed on the opposite inner walls of the stator core; the central shaft and the rotor piece are positioned between the oppositely arranged magnetic shoe parts; the magnets are provided in a plurality, are symmetrically arranged on the mover with respect to the central axis, and face the nearest magnetic shoe parts respectively.
Further, the N pole and the S pole of the magnet are distributed along an axial direction parallel to the central axis.
Further, the stator core comprises a plurality of first silicon steel sheets and a plurality of second silicon steel sheets which are stacked, wherein the first silicon steel sheets are square; the second silicon steel sheet comprises a square frame part and a protruding part which are integrally formed, and the protruding part is formed by protruding inwards from the inner wall of the square frame part; the protruding parts of the second silicon steel sheets are laminated to form the magnetic shoe part.
Further, the protruding portion is in a square sheet shape.
Further, a first through hole matched with the central shaft is formed in the elastic sheet, and second through holes which are distributed in a spiral mode along the plane where the elastic sheet is located are formed in the outer side of the first through hole.
Further, the mover member is rectangular, a concave magnet groove is formed in the outer wall of the mover member, and the magnet is embedded in the magnet groove.
Further, the magnet grooves are symmetrically distributed on the rotor piece.
Further, one end of the central shaft passes through the elastic sheet and extends out of the elastic sheet.
Further, the mover member is made of a plastic material.
The present utility model has an advantageous contribution in that it effectively solves the above-mentioned problems. The utility model relates to a reciprocating oscillation high-frequency linear motor which comprises a stator core, a coil, a spring piece, a central shaft, a rotor piece and a magnet, wherein magnetic poles of the magnet are axially arranged, and the coil is electrified to enable magnetic shoe parts of the stator core to generate alternating magnetic poles so as to interact with the magnet, thereby driving the central shaft and the rotor piece to reciprocate. The two ends of the reciprocating oscillation high-frequency linear motor are provided with the elastic pieces for fixing the central shaft, and the elastic pieces are provided with the spiral second through holes, so that the elastic pieces have good elasticity and strength, the resistance in the motor movement process can be reduced, and the use efficiency and the movement frequency of the motor are improved. In addition, the motor of this embodiment adopts a plurality of coils and a plurality of magnetite, and the motor circular telegram during operation can increase the dynamics of active cell spare in reciprocating motion. The reciprocating oscillation high-frequency linear motor has the characteristics of simple structure, large motion force, high motion frequency and long service life, and has strong practicability.
[ description of the drawings ]
Fig. 1 is a schematic view of the overall structure of the present utility model.
Fig. 2 is an exploded view of the structure of the present utility model.
Fig. 3 is a cross-sectional view.
FIG. 4 is a schematic plan view of a first silicon steel sheet.
FIG. 5 is a schematic plan view of a second silicon steel sheet.
The attached drawings are identified: the stator core 10, the magnetic shoe 11, the first silicon steel sheet 12, the second silicon steel sheet 13, the square frame 131, the protruding part 132, the coil 20, the spring plate 30, the first through hole 31, the second through hole 32, the central shaft 40, the rotor 50, the magnet slot 51 and the magnet 60.
[ detailed description ] of the utility model
The following examples are further illustrative and supplementary of the present utility model and are not intended to limit the utility model in any way.
As shown in fig. 1 to 5, the reciprocating high-frequency linear motor of the present utility model includes a stator core 10, a coil 20, a spring plate 30, a center shaft 40, a mover 50, and a magnet 60.
The stator core 10 is in a cylindrical shape with two open ends, and the inner wall of the stator core is provided with a convex magnetic shoe part 11. The magnetic shoe 11 is used for sleeving the coil 20, so that an induction electrode can be generated under the electromagnetic induction action.
The number of the magnetic shoe parts 11 may be one or a plurality of as needed. When the number of the magnetic shoe 11 is plural, it may be even or odd. When the number of the magnetic shoe parts 11 is even, they may be symmetrically distributed or asymmetrically distributed. In this embodiment, the number of the magnetic shoes 11 is 4, and the magnetic shoes are symmetrically distributed: two magnetic shoe portions 11 are provided on opposite side inner walls of the stator core 10, respectively, at intervals.
The shape of the magnetic shoe 11 may be set as required, and in this embodiment, it is rectangular block-shaped, which facilitates interaction with the rectangular magnet 60 having an elongated shape.
The stator core 10 may be made of silicon steel sheets, and in this embodiment, the stator core 10 is formed by stacking silicon steel sheets. Since the magnetic shoe 11 is disposed on a partial inner wall of the stator core 10, the stator core 10 includes a plurality of stacked first silicon steel sheets 12 and a plurality of second silicon steel sheets 13.
The first silicon steel sheets 12 are square frame-shaped, and when the first silicon steel sheets 12 are stacked together, the inner walls of the first silicon steel sheets do not have protruding magnetic shoe parts 11.
The second silicon steel sheet 13 includes a square frame 131 and a protruding portion 132. The cross-sectional shape and size of the square frame 131 are identical to those of the first silicon steel sheet 12. The protruding portion 132 is formed by protruding inward from the inner wall of the square portion 131. The number and positions of the protruding portions 132 are set according to the number and positions of the magnetic shoe portions 11. When the second silicon steel sheets 13 are stacked together, the protruding portions 132 are stacked together to form the magnetic shoe 11.
The coil 20 is used to apply alternating current to induce the stator core 10 to produce induction electrodes. The coil 20 is sleeved on the magnetic shoe 11. In this embodiment, the coils 20 are selected from a coil 20 pack, which is provided with 4 coils, and are respectively sleeved on the magnetic shoe 11.
The coil 20 is wound in such a manner that, after the coil 20 is energized, an induction electrode is generated at the end of the magnetic shoe 11 in the protruding direction of the magnetic shoe 11.
The elastic sheet 30 serves to return the central shaft 40 and reduce resistance when the central shaft 40 reciprocates, thereby improving vibration efficiency and vibration frequency. The elastic sheet 30 is fixedly arranged on the open end of the stator core 10. The spring plate 30 may be fixed to the stator core 10 by a known technique, for example, it may be fixed to the open end of the stator core 10 by welding, bonding, or the like. The shape of the spring 30 may be set according to the need, and in this embodiment, the shape of the spring 30 matches the shape of the end face of the stator core 10, and is in a square sheet shape.
For connecting the central shaft 40, a first through hole 31 is provided in the center of the elastic piece 30. The shape of the first through hole 31 is matched with the shape of the central shaft 40, and in this embodiment, the first through hole 31 is a square hole.
To generate elasticity, the elastic sheet 30 is provided with a second through hole 32. In this embodiment, the second through holes 32 are spirally distributed along the plane of the elastic sheet 30, which is a spiral hole, and are disposed outside the first through holes 31.
The spring plate 30 may be made of a metal material, and in this embodiment, the spring plate 30 is made of a manganese steel sheet, which has high strength and good abrasion resistance, and can improve the service life.
The central shaft 40 is disposed in the stator core 10, and has one end extending out of the spring plate 30 for outputting high-frequency vibration.
The shape of the center shaft 40 may be set as needed, and may be a circular shaft shape or a square shaft shape. In this embodiment, the central shaft 40 is square.
One end of the central shaft 40 is inserted into the first through hole 31 of the elastic sheet 30 to be flush with the surface of the elastic sheet 30, and the other end of the central shaft passes through the first through hole 31 of the elastic sheet 30 to extend out of the elastic sheet 30, thereby forming an output end for outputting high-frequency vibration.
The central shaft 40 is spaced from the magnetic shoe 11. When 1 magnetic shoe 11 is provided, the center axis 40 is located on one side of the magnetic shoe 11 and is spaced apart from the magnetic shoe 11. When a plurality of magnetic shoes 11 are provided on different inner walls of the stator core 10, the center axis 40 is located in the middle of the magnetic shoes 11. In this embodiment, the central axis 40 is located at a central position between the magnetic shoe portions 11. In other words, the magnetic shoe 11 is symmetrically distributed with respect to the central axis 40.
The mover 50 is fixedly sleeved on the central shaft 40, and can synchronously move along with the central shaft 40. The mover member 50 is spaced apart from the magnetic shoe 11. In this embodiment, the mover 50 has a rectangular block shape, and a central shaft 40 hole penetrating along an axial direction thereof is provided at a center thereof, and the central shaft 40 is inserted into the central shaft 40 hole, so that the mover 50 can move synchronously with the central shaft 40.
The material of the mover 50 may be set as needed. In this embodiment, the mover member 50 is made of plastic material, which can save cost on one hand and reduce weight on the other hand, so as to facilitate the rotation of the mover.
For mounting the magnet 60, a magnet groove 51 is provided in the mover 50. In this embodiment, the magnet slot 51 is a concave rectangular slot, and is used for embedding the strip-shaped magnet 60.
The number of the magnet grooves 51 corresponds to the number of the magnetic shoe portions 11. In this embodiment, the mover 50 is provided with 4 magnet slots 51 symmetrically distributed on two opposite sidewalls of the mover 50 and facing the nearest magnetic shoe 11.
The magnet 60 is configured to interact with the magnetic pole generated by the magnetic shoe 11, thereby moving the mover 50 and the center shaft 40. The number of magnets 60 may be set as required, in this embodiment, 4 magnets are provided and are embedded in the magnet slot 51, and the surface of the magnets is flush with the surface of the mover 50.
The N-pole and S-pole of the magnet 60 are distributed in the axial direction parallel to the central axis 40, and the distribution of specific poles thereof may be set as needed. In some embodiments, the pole distribution of each magnet is substantially uniform. In some embodiments, the pole distribution of each magnet may not be exactly the same. When the N pole and the S pole are alternately generated on the magnetic shoe 11, they alternately attract and/or repel the S pole and the N pole, so that the magnet 60 is forced to move axially by the magnetic force, thereby driving the mover 50 and the center shaft 40 to reciprocate axially, thereby generating a high frequency oscillation output.
Thus, the reciprocating oscillation high-frequency linear motor of the utility model is formed: the inner wall of the stator core 10 is provided with a convex magnetic shoe part 11, and the coil 20 is sleeved on the magnetic shoe part 11 so as to enable the magnetic shoe part 11 to generate magnetic poles which alternate; the spring plate 30 is fixedly arranged on the open end of the stator core 10, two ends of the central shaft 40 are fixedly connected with the spring plate 30, one end of the central shaft 40 extends out of the spring plate 30, and the rotor piece 50 is fixedly sleeved on the central shaft 40; the magnet 60 is fixedly provided on the mover member 50 and faces the magnetic shoe 11. When the coil 20 is supplied with an operating current with alternating directions, the magnetic shoe 11 can generate alternating magnetic poles; when the N pole is generated on the magnetic shoe 11, it repels the N pole of the magnet 60 and attracts the S pole of the magnet 60; when the magnetic shoe 11 generates an S-pole at the next time, it repels the current S-pole of the magnet 60, attracts the N-pole of the magnet 60, and moves the magnet 60 to make its corresponding pole face the magnetic shoe 11; when the magnetic poles on the magnetic shoe 11 alternate, it drives the magnet 60 to reciprocate, thereby reciprocating the mover 50 and the center shaft 40, and thus generating a high frequency oscillation output.
According to the reciprocating oscillation high-frequency linear motor, the two ends of the elastic sheet 30 are used for fixing the central shaft 40, and the elastic sheet 30 is provided with the spiral second through holes 32 which have good elasticity and strength, so that the resistance in the motor movement process can be reduced, and the use efficiency and the movement frequency of the motor are improved. In addition, the motor of the present embodiment employs a plurality of coils 20 and a plurality of magnets, and the force of the mover 50 in the reciprocating motion can be increased when the motor is energized. The reciprocating oscillation high-frequency linear motor has the characteristics of simple structure, large motion force, high motion frequency and long service life, and has strong practicability.
Although the present utility model has been disclosed by the above embodiments, the scope of the present utility model is not limited thereto, and each of the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the spirit of the present utility model.
Claims (10)
1. A reciprocating oscillating high frequency linear motor, comprising:
a stator core (10) which is in a cylinder shape with two open ends, and the inner wall of which is provided with a convex magnetic shoe part (11);
a coil (20) sleeved on the magnetic shoe part (11);
the elastic sheet (30) is fixedly arranged on the open end of the stator core (10);
a central shaft (40) with two ends respectively connected with the elastic sheet (30), wherein the central shaft (40) is spaced from the magnetic shoe part (11);
the rotor piece (50) is fixedly sleeved on the central shaft (40) and is spaced from the magnetic shoe part (11);
a magnet (60) provided on the mover (50) and facing the magnetic shoe (11); the magnet (60) is spaced from the magnetic shoe (11);
when the coil (20) is powered on, alternating magnetic poles can be generated on the magnetic shoe part (11) to interact with the magnet (60) so as to drive the rotor (50) and the central shaft (40) to reciprocate along the axial direction of the rotor to form high-frequency oscillation output.
2. A reciprocating oscillating high frequency linear motor according to claim 1, characterized in that,
the magnetic shoe parts (11) are provided with a plurality of magnetic shoe parts which are symmetrically distributed on the opposite inner walls of the stator core (10);
the central shaft (40) and the rotor (50) are positioned between the oppositely arranged magnetic shoe parts (11);
the magnets (60) are provided in plurality, are symmetrically provided on the mover (50) with respect to the center axis (40), and face the nearest magnetic shoe (11), respectively.
3. A reciprocating oscillating high frequency linear motor according to claim 1, characterized in that,
the N pole and the S pole of the magnet (60) are distributed along an axial direction parallel to the central axis (40).
4. A reciprocating oscillating high frequency linear motor according to claim 1, characterized in that,
the stator core (10) comprises a plurality of first silicon steel sheets (12) and a plurality of second silicon steel sheets (13) which are laminated,
the first silicon steel sheet (12) is square;
the second silicon steel sheet (13) comprises a square frame part (131) and a protruding part (132) which are integrally formed, and the protruding part (132) is formed by protruding inwards from the inner wall of the square frame part (131);
the protruding parts (132) of the second silicon steel sheets (13) are laminated to form the magnetic shoe part (11).
5. The reciprocating oscillating high-frequency linear motor according to claim 4, characterized in that the protruding portion (132) has a square sheet shape.
6. A reciprocating oscillating high-frequency linear motor according to claim 1, characterized in that the elastic sheet (30) is provided with a first through hole (31) matched with the central shaft (40), and the outer side of the first through hole (31) is provided with second through holes (32) spirally distributed along the plane of the elastic sheet (30).
7. A reciprocating oscillating high-frequency linear motor according to claim 1, characterized in that the mover member (50) has a rectangular block shape, and is provided with concave magnet grooves (51) on opposite outer walls thereof, and the magnets (60) are embedded in the magnet grooves (51).
8. The reciprocating oscillating high-frequency linear motor according to claim 7, characterized in that the magnet slots (51) are symmetrically distributed on the mover (50).
9. The reciprocating-oscillation high-frequency linear motor according to claim 1, wherein one end of the central shaft (40) passes through the elastic piece (30) to protrude outside the elastic piece (30).
10. A reciprocating oscillating high frequency linear motor according to claim 1, characterized in that the mover member (50) is made of plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222477191.3U CN219247680U (en) | 2022-09-19 | 2022-09-19 | Reciprocating oscillation high-frequency linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222477191.3U CN219247680U (en) | 2022-09-19 | 2022-09-19 | Reciprocating oscillation high-frequency linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219247680U true CN219247680U (en) | 2023-06-23 |
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ID=86808753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222477191.3U Active CN219247680U (en) | 2022-09-19 | 2022-09-19 | Reciprocating oscillation high-frequency linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219247680U (en) |
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2022
- 2022-09-19 CN CN202222477191.3U patent/CN219247680U/en active Active
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