Linear motor device

Abstract

A linear motor device comprises a fixing base, elastic pieces, a stator assembly, a first mover assembly and a second mover assembly, the elastic pieces are arranged on the two sides of the fixing base in the first direction X, each elastic piece comprises a first elastic piece part and a second elastic piece part which are arranged in the second direction Y, the first mover assembly is connected between the free ends of the first elastic piece parts in the first direction X, and the second mover assembly is connected between the free ends of the second elastic piece parts in the second direction Y; the second mover assembly is connected between the free ends of the second elastic piece parts in the first direction X. The first mover assembly and the second mover assembly can interact with the stator assembly to reciprocate in the first direction. During working, the first rotor assembly and the second rotor assembly swing in opposite directions. Compared with the prior art, the linear motor provided by the utility model is simpler in structure, not only beneficial to assembly, but also capable of reducing the processing cost, and easy to radiate heat, has the characteristics of large torque and long service life, and has very strong practicability.

Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to a linear motor device. Background Technology

[0002] Electric hair clippers, shavers, and similar products typically use an electric motor to power the blades for shaving or haircutting. As products upgrade, users have increasingly higher demands for motors. A motor that simultaneously meets the requirements of small size, high power, low noise, good heat dissipation, and long service life would better satisfy market demands. Existing motor devices struggle to achieve both small size and low noise while maintaining high power; therefore, existing motor devices require improvement. To address this, the applicant designed a linear motor device with improved structure, such as the linear motor device in patent number 202321153642.6. While this linear motor device increases power, its complex installation structure hinders improvements in production efficiency and cost reduction; therefore, further improvements are needed. Utility Model Content

[0003] The present invention aims to solve the above problems and provide a linear motor device with a simpler structure, which can improve assembly efficiency and reduce production costs.

[0004] To solve the above problems, this utility model provides a linear motor device, characterized in that it includes a fixed base, springs, a stator assembly, a first mover assembly, and a second mover assembly. The springs are disposed on both sides of the fixed base along a first direction X. Each spring includes a first spring portion and a second spring portion disposed along a second direction Y. The free ends of the first spring portion and the second spring portion are spaced apart and can move relative to each other. The stator assembly is fixedly disposed on the fixed base and located between the springs. The first mover assembly includes a first magnetic structure and a first swing arm. The first swing arm is connected between the free ends of the first spring portions along the first direction X. The first magnetic structure is fixedly disposed on the first swing arm and can interact with the stator assembly to drive the first swing arm to move along the first direction X. The second mover assembly includes a second magnetic structure and a second swing arm. The second swing arm is connected between the free ends of the second spring portions along the first direction X. The second magnetic structure is fixedly disposed on the second swing arm and can interact with the stator assembly to drive the second swing arm to move along the second direction Y. During operation, the first mover assembly and the second mover assembly swing in opposite directions.

[0005] Furthermore, it also includes an elastic element disposed between the first pendulum rod and the second pendulum rod along a first direction X. One end of the elastic element is connected to the first pendulum rod, and the other end of the elastic element is connected to the second pendulum rod. The elastic element always has a tendency to drive the first pendulum rod and the second pendulum rod to return to their original positions when the first moving part assembly and the second moving part assembly swing in opposite directions.

[0006] Furthermore, the first rocker arm includes a first plate portion and a first support portion, the first plate portion being fixedly connected between the free ends of the first spring portion along the first direction X; the first support portion protrudes from the first plate portion and is spaced apart on the first plate portion along the first direction X;

[0007] The second rocker arm includes a second plate portion and a second protruding post portion. The second plate portion is fixedly connected between the free ends of the second spring plate portion along the first direction X, and the second protruding post portion protrudes between the second plate portions. When viewed along the first direction X, the second protruding post portion is located between the first support portions.

[0008] Furthermore, the elastic element is connected between the first support portion and the second protruding post portion.

[0009] Furthermore, at least a portion of the projections of the first support portion and the second protruding column portion onto the plane containing the first plate portion and the second plate portion lie on the same straight line, which is parallel to the first direction X.

[0010] Furthermore, the first support portion extends along the second direction Y and extends above the second plate portion.

[0011] Furthermore, an output shaft is provided on the second protruding column, which is arranged along a third direction Z, and the third direction Z is perpendicular to the first direction X and the second direction Y.

[0012] Furthermore, the first magnetic structure includes a first permanent magnet and a first magnetic guide plate. The first magnetic guide plate is fixedly mounted on the first rocker arm, and the first permanent magnet is fixedly mounted on the first magnetic guide plate and spaced apart from the stator assembly.

[0013] Furthermore, the second magnetic structure includes a second permanent magnet and a second magnetic guide plate. The second magnetic guide plate is fixedly mounted on the second rocker arm, and the second permanent magnet is fixedly mounted on the second magnetic guide plate and spaced apart from the stator assembly.

[0014] Furthermore, the stator assembly includes a stator core and a coil. The stator core is provided with a plurality of magnetic shoe portions spaced apart along the first direction X. The ends of the magnetic shoe portions opposite to the first mover assembly and the second mover assembly are connected to each other to form a connecting portion. The two ends of the connecting portion along the first direction X extend to both sides of the magnetic shoe portion.

[0015] The coil is sleeved on the magnetic boot portion;

[0016] The fixing base includes a first fixing base and a second fixing base that are mated together. The first fixing base and the second fixing base are respectively provided with a semi-positioning groove and a semi-locking groove. When the first fixing base and the second fixing base are mated, the semi-positioning grooves are mated to form a positioning groove, and the semi-locking grooves are mated to form a locking groove. The locking groove is located at both ends of the positioning groove in the first direction X, and the locking groove extends along the second direction Y. The locking groove is located at the bottom of the positioning groove and is recessed inward relative to the inner wall of the positioning groove. The stator core is clamped in the positioning groove, the bottom of the connecting part is fitted with the bottom surface of the positioning groove, and the two ends of the connecting part are limited and installed in the locking groove.

[0017] The beneficial contribution of this utility model lies in its effective solution to the aforementioned problems. Compared with the prior art, the linear motor of this utility model has a simpler structure, which not only facilitates assembly but also reduces processing costs. It is also easier to dissipate heat and features high torque and long service life, making it highly practical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 3 This is an exploded view of the structure of this utility model.

[0021] Reference numerals in the attached figures: Fixed base 10, First fixed base 11, Second fixed base 12, Semi-positioning groove 13, Semi-slot 14, Mounting hole 15, Avoidance slope 16, Spring piece 20, First spring piece part 21, Second spring piece part 22, Stator assembly 30, Iron core 31, Magnetic shoe part 311, Connecting part 312, Coil 32, First mover assembly 40, First magnetic structure 41, First permanent magnet 411, First magnetic guide plate 412, First swing rod 42, First plate part 421, First support part 422, Second mover assembly 50, Second magnetic structure 51, Second permanent magnet 511, Second magnetic guide plate 512, Second swing rod 52, Second plate part 521, Second protruding column part 522, Elastic element 60, Output shaft 70, First direction X, Second direction Y, Third direction Z. Detailed Implementation

[0022] The following embodiments are further explanations and supplements to the present invention and do not constitute any limitation on the present invention.

[0023] like Figures 1-3 As shown, the linear motor device of this utility model includes a fixed base 10, a spring piece 20, a stator assembly 30, a first mover assembly 40, and a second mover assembly 50.

[0024] The mounting base 10 is used to support and install the spring 20 and the stator assembly 30.

[0025] The spring piece 20 is disposed on both sides of the fixed base 10 along the first direction X. One end of the spring piece 20 is fixedly connected to the fixed base 10, and the other end extends into a free end along the third direction Z. Therefore, the spring piece 20 can swing at least in the first direction X. To support the first moving part assembly 40 and the second moving part assembly 50, the spring piece 20 includes a first spring piece portion 21 and a second spring piece portion 22 disposed along the second direction Y. The free ends of the first spring piece portion 21 and the second spring piece portion 22 are spaced apart from each other and can move relative to each other. The ends of the first spring piece portion 21 and the second spring piece portion 22 opposite to the free ends can be integrally connected, such as integrally formed, or they can be spaced apart and fixedly connected to the fixed base 10. In this embodiment, the ends of the first spring piece portion 21 and the second spring piece portion 22 opposite to the free ends are integrally formed and fixed to both sides of the fixed base 10 by bolts. The material of the spring piece 20 is not limited. It is long and thin, and because one end is free, it is elastic, thus providing conditions for the displacement movement of the first moving part 40 and the second moving part 50. In this embodiment, the spring piece 20 is made of metal and is relatively thin.

[0026] The stator assembly 30 is fixedly mounted on the mounting base 10 and located between the spring pieces 20. The mover assembly is energized to interact with the first mover assembly 40 and the second mover assembly 50 to drive the first mover assembly 40 and the second mover assembly 50 to move.

[0027] The first moving part assembly 40 includes a first magnetic structure 41 and a first pendulum rod 42. The first pendulum rod 42 is connected to the free end of the first spring piece 21 along a first direction X, and it can move along the first direction X. "Move along the first direction X" means that it moves generally along the first direction X; its main movement is along the first direction X, not strictly requiring only linear movement along the first direction X. Because the first spring piece 21 oscillates elastically, the first pendulum rod 42 may also experience displacement changes in the third direction Z during actual movement, but overall, the first pendulum rod 42 has the largest range of movement along the first direction X. The first magnetic structure 41 is fixedly mounted on the first pendulum rod 42 and can interact with the stator assembly 30, thereby driving the first pendulum rod 42 to move along the first direction X.

[0028] The second moving part assembly 50 includes a second magnetic structure 51 and a second pendulum 52. The second pendulum 52 is connected to the free end of the second spring piece 22 along a first direction X, and it can move along the first direction X. Here, "moving along the first direction X" means that the second pendulum 52 moves generally along the first direction X; its main movement is along the first direction X, rather than being strictly required to move only in a straight line along the first direction X.

[0029] When the stator assembly 30 interacts with the first mover assembly 40 and the second mover assembly 50, the first mover assembly 40 and the second mover assembly 50 swing in opposite directions. In this way, the first mover assembly 40 and the second mover assembly 50 can also interact to increase the driving force of the motor.

[0030] Furthermore, when the free ends of the first rocker arm 42 and the first spring plate 21, and the second rocker arm 52 and the second spring plate 22 are connected, various known fixing methods can be used. In this embodiment, screw holes are provided at corresponding positions of the first rocker arm 42 and the first spring plate 21, and the two are fixedly connected together by fasteners such as bolts or screws. Similarly, the free ends of the second rocker arm 52 and the second spring plate 22 are fixedly connected together by fasteners such as bolts or screws.

[0031] Furthermore, the linear motor device also includes an elastic element 60.

[0032] The elastic element 60 is used to drive the first moving part 40 and the second moving part 50 to return to their original positions. It is disposed between the first pendulum rod 42 and the second pendulum rod 52 along a first direction X. One end of the elastic element 60 is connected to the first pendulum rod 42, and the other end is connected to the second pendulum rod 52. When the first moving part 40 and the second moving part 50 swing in opposite directions, the elastic element 60 always has a tendency to drive the first pendulum rod 42 and the second pendulum rod 52 to return to their original positions.

[0033] The elastic element 60 can be any known elastic component; in this embodiment, the elastic element 60 is a spring.

[0034] Furthermore, to facilitate the placement of the elastic element 60 between the first rocker arm 42 and the second rocker arm 52 along the first direction X, the first rocker arm 42 includes a first plate portion 421 and a first support portion 422, and the second rocker arm 52 includes a second plate portion 521 and a second protruding post portion 522.

[0035] The first plate portion 421 is integrally formed or fixedly connected to the first support portion 422. Preferably, in this embodiment, the first plate portion 421 and the first support portion 422 are integrally formed. The first plate portion 421 is fixedly connected to the free ends of the first spring piece portion 21 along the first direction X. The shape of the first plate portion 421 is not limited. In this embodiment, the first plate portion 421 is rectangular, and its end fits against the first spring piece portion 21 and is then fixedly connected by fasteners. The first support portion 422 protrudes from the first plate portion 421 and is located on the side of the first plate portion 421 opposite to the stator assembly 30. Multiple first support portions 422 are provided and are spaced apart on the first plate portion 421 along the first direction X. The first support portions 422 can be provided on the ends of the first plate portion 421 or on non-ends. In this embodiment, two first support portions 422 are provided and are symmetrically arranged on the two ends of the first plate portion 421.

[0036] The second plate portion 521 and the second protruding post portion 522 are integrally formed or fixedly connected. In this embodiment, the second plate portion 521 and the second protruding post portion 522 are integrally formed. The second plate portion 521 is fixedly connected between the free ends of the second spring piece portion 22 along the first direction X. The shape of the second plate portion 521 is not limited. In this embodiment, it is rectangular plate-shaped, and its end fits against the second spring piece portion 22, and then is fixedly connected by fasteners. The second protruding post portion 522 is protrudingly provided on the second plate portion 521, and when viewed along the first direction X, the second protruding post portion 522 is located between the first support portions 422.

[0037] Furthermore, the second protruding post 522 is located at the midpoint of the first support portion 422 along the first direction X; in other words, the second protruding post 522 is equidistant from the two first support portions 422. This allows the motor structure to form a symmetrical structure, thereby generating stable high-frequency vibration.

[0038] The elastic element 60 is connected between the first support portion 422 and the second protruding post portion 522. In this embodiment, two elastic elements 60 are provided, which are respectively provided on both sides of the second protruding post portion 522, with one end connected to the second protruding post portion 522 and the other end connected to the first support portion 422.

[0039] Furthermore, to ensure that the elastic member 60 is positioned along the first direction X, at least a portion of the projections of the first support portion 422 and the second protruding portion 522 onto the plane containing the first plate portion 421 and the second plate portion 521 lie on the same straight line, and this straight line is parallel to the first direction X. This allows the elastic member 60 to be positioned along the first direction X, and for both ends of the elastic member 60 to be connected to the first support portion 422 and the second protruding portion 522, respectively.

[0040] In some embodiments, the first support portion 422 may extend along the second direction Y and extend above the second plate portion 521 to correspond to the second protruding post portion 522, thereby facilitating the provision of the elastic member 60 along the first direction X.

[0041] In some embodiments, the second protruding post 522 may extend along the second direction Y and extend above the first plate 421 to correspond to the first support 422, thereby facilitating the provision of the elastic member 60 along the first direction X.

[0042] In some embodiments, the first support portion 422 and the second protruding post portion 522 may extend toward each other along the second direction Y, thereby facilitating the provision of the elastic member 60 along the first direction X.

[0043] In this embodiment, the first support portion 422 extends along the second direction Y and extends above the second plate portion 521, while the second protruding portion 522 does not extend along the second direction Y, and the second protruding portion 522 is entirely located within the area of ​​the second plate portion 521. The elastic member 60 is disposed along the first direction X and is located directly above the second plate portion 521.

[0044] Furthermore, to output high-frequency vibration, an output shaft 70 is provided on the second protruding post 522 along a third direction Z. The third direction Z is perpendicular to the first direction X and the second direction Y. The output shaft 70 is used to connect to a driven object, such as the toothbrush head of an electric toothbrush or the blade of a hair clipper.

[0045] Furthermore, the first magnetic structure 41 includes a first permanent magnet 411 and a first magnetic guide plate 412. The first magnetic guide plate 412 is fixedly disposed on the first rocker arm 42, and the first permanent magnet 411 is fixedly disposed on the first magnetic guide plate 412 and spaced apart from the stator assembly 30. The stator assembly 30 can interact with the first permanent magnet 411, thereby driving the first rocker arm 42 to reciprocate along the first direction X.

[0046] The second magnetic structure 51 includes a second permanent magnet 511 and a second magnetic guide plate 512. The second magnetic guide plate 512 is fixedly mounted on the second rocker arm 52, and the second permanent magnet 511 is fixedly mounted on the second magnetic guide plate 512, spaced apart from the stator assembly 30. The stator assembly 30 can interact with the second permanent magnet 511, thereby driving the second rocker arm 52 to reciprocate along the first direction X.

[0047] Furthermore, the first magnetically conductive plate 412 is attached to the surface of the first plate portion 421 and faces the stator assembly 30. The first magnetically conductive plate 412 is elongated and disposed along the first direction X, and can be fixed to the surface of the first plate portion 421 by means of adhesive bonding or other methods. In other embodiments, a receiving groove may also be provided on the surface of the first plate portion 421, and the first magnetically conductive plate 412 may be embedded in the receiving groove of the first plate portion 421.

[0048] The second magnetic plate 512 is preferably disposed on the surface of the second plate portion 521 in the same manner, thereby making the structure highly symmetrical, which is not only conducive to processing, but also conducive to vibration stability.

[0049] Furthermore, magnet slots are provided on the first magnetic plate 412 and the second magnetic plate 512, and the first permanent magnet 411 and the second permanent magnet 511 are respectively embedded in the magnet slots.

[0050] The number of the first permanent magnet 411 and the second permanent magnet 511 is not limited. They can be a single elongated magnet or multiple magnets distributed on the first magnetic plate 412 and the second magnetic plate 512. The number of the first permanent magnet 411 and the second permanent magnet 511 is related to the number of magnetic shoe portions 311 of the stator assembly 30.

[0051] The magnetic pole distribution of the first permanent magnet 411 and the second permanent magnet 511 is related to the number of magnetic shoe portions 311 and the virtual magnetic poles generated thereon. However, in general, the magnetic poles of the first permanent magnet 411 and the second permanent magnet 511 at the same position in the first direction X should be opposite, so that the first pendulum 42 and the second pendulum 52 can be driven to move in opposite directions.

[0052] Furthermore, the stator assembly 30 includes a stator core 31 and a coil 32. Furthermore, the stator assembly 30 may also include an insulating frame 33.

[0053] The stator core 31 is made of ferromagnetic material. In this embodiment, the stator core 31 is formed by laminating a plurality of silicon steel sheets. The stator core 31 includes a plurality of magnetic shoe portions 311 arranged at intervals along the first direction X. The magnetic shoe portions 311 can concentrate magnetic flux to generate virtual magnetic poles. The number of the magnetic shoe portions 311 can be set as required. In this embodiment, it has 3 magnetic shoe portions 311.

[0054] The end portions of the magnetic shoe portions 311 face the first permanent magnet 411 and the second permanent magnet 511, and are spaced apart from the first permanent magnet 411 and the second permanent magnet 511 by a certain distance.

[0055] One ends of the magnetic shoe portions 311, which are opposite to the first mover assembly 40 and the second mover assembly 50, are connected to each other to form a connecting portion 312. The connecting portion 312 and the 3 magnetic shoe portions 311 form a "mountain" - shaped structure of the stator core 31.

[0056] Further, both ends of the connecting portion 312 along the first direction X respectively extend to both sides of the magnetic shoe portions 311, and are used for positioning and clamping with the fixing base 10.

[0057] The coil 32 is sleeved on the stator core 31. Specifically, it is sleeved on the magnetic shoe portions 311. In this embodiment, only one coil 32 is sleeved on the middle magnetic shoe portion 311. In this way, the size can be saved and the volume of the motor can be reduced. In other embodiments, the number of the coils 32 can be set as required, and it can also be set as multiple.

[0058] Further, the insulating frame 33 is sleeved between the coil 32 and the magnetic shoe portion 311.

[0059] The fixing base 10 includes a first fixing base 11 and a second fixing base 12 which are joined together.

[0060] The first fixing base 11 and the second fixing base 12 are respectively provided with a semi - positioning groove 13 and a semi - clamping groove 14. When the first fixing base 11 and the second fixing base 12 are joined together, the semi - positioning grooves 13 are joined to form a positioning groove, and the semi - clamping grooves 14 are joined to form a clamping groove.

[0061] The clamping groove is located at both ends of the positioning groove along the first direction X, and the clamping groove extends along the second direction Y. The clamping groove is provided at the bottom of the positioning groove and is recessed inward relative to the inside of the positioning groove. The bottom of the clamping groove is flush with the bottom of the positioning groove, and is used for being in close contact with the bottom of the connecting portion 312.

[0062] When the stator core 31 is fitted into the positioning groove, the bottom of the connecting part 312 is fitted against the bottom surface of the positioning groove, and the two ends of the connecting part 312 are limited and installed in the slot. In this way, the stator core 31 can be fixed relative to the fixed base 10 simply by snapping it in.

[0063] During installation, the semi-slots 14 of the first fixing seat 11 and the second fixing seat 12 are aligned with the end of the connecting part 312 of the stator core 31 and engaged. The first fixing seat 11 and the second fixing seat 12 are then engaged from both sides of the stator core 31 along the second direction Y, so that the first fixing seat 11 and the second fixing seat 12 are aligned, and the stator core 31 is held between the first fixing seat 11 and the second fixing seat 12. This completes the fixing of the fixing seat 10 and the stator core 31, thus fixing the first fixing seat 11, the second fixing seat 12, and the stator core 31 together. This installation structure is simple and easy to install.

[0064] Furthermore, mounting holes 15 extending along the first direction X are provided on the first fixing seat 11 and the second fixing seat 12 respectively, and the spring piece 20 is fixed to the first fixing seat 11 and the second fixing seat 12 by bolts.

[0065] Furthermore, to provide space for the movement of the spring piece 20, the first fixing seat 11 and the second fixing seat 12 are respectively provided with a clearance slope 16 at both ends along the first direction X. The clearance slope 16 is inclined inward relative to the plane where the spring piece 20 is located, so that the spring piece 20 can easily swing inward.

[0066] Thus, the linear motor device of this embodiment is formed. When the coil 32 is energized, virtual magnetic poles with alternating magnetic poles are generated on the magnetic shoe 311. The magnetic shoe 311 with alternating polarity interacts with the first permanent magnet 411 and the second permanent magnet 511. Through the principle of like poles attracting and unlike poles repelling, the first mover assembly 40 and the second mover assembly 50 can be driven to oscillate back and forth along the first direction X. Furthermore, since the magnetic pole distribution of the first permanent magnet 411 and the second permanent magnet 511 is opposite, the first mover assembly 40 and the second mover assembly 50 oscillate in opposite directions. In this way, the first mover assembly 40 and the second mover assembly 50 also interact with each other to increase the driving force, making the high-frequency vibration power output through the output shaft 70 greater. The linear motor device of this utility model has a simple structure and is easy to install. It not only reduces production costs but also facilitates heat dissipation and has the characteristics of high torque and long service life, making it highly practical.

[0067] Although the present invention has been disclosed through the above embodiments, the scope of the present invention is not limited thereto. Without departing from the concept of the present invention, the above components can be replaced by similar or equivalent elements known to those skilled in the art.

Claims

1. A linear motor device, characterized by comprising: It comprises: a fixed seat (10), a spring piece (20) arranged on both sides of the fixed seat (10) along a first direction X, the spring piece (20) comprising a first spring piece part (21) and a second spring piece part (22) arranged along a second direction Y, free ends of the first spring piece part (21) and the second spring piece part (22) being spaced apart and movable relative to each other; a stator assembly (30) fixedly arranged on the fixed seat (10) and located between the spring piece (20); a first mover assembly (40) comprising a first magnetic structure (41) and a first swing lever (42), the first swing lever (42) being connected between the free ends of the first spring piece part (21) along the first direction X, the first magnetic structure (41) being fixedly arranged on the first swing lever (42) and being capable of interacting with the stator assembly (30) to drive the first swing lever (42) to move along the first direction X; a second mover assembly (50) comprising a second magnetic structure (51) and a second swing lever (52), the second swing lever (52) being connected between the free ends of the second spring piece part (22) along the first direction X, the second magnetic structure (51) being fixedly arranged on the second swing lever (52) and being capable of interacting with the stator assembly (30) to drive the second swing lever (52) to move along the second direction Y; In operation, the first mover assembly (40) and the second mover assembly (50) swing in opposite directions.

2. The linear motor device of claim 1, wherein It further comprises: a resilient member (60) arranged between the first swing lever (42) and the second swing lever (52) along the first direction X, one end of the resilient member (60) being connected to the first swing lever (42), the other end of the resilient member (60) being connected to the second swing lever (52); the resilient member (60) always has a tendency to drive the first swing lever (42) and the second swing lever (52) to return to the original position when the first mover assembly (40) and the second mover assembly (50) swing in opposite directions.

3. The linear motor device according to claim 2, wherein: the first swing lever (42) comprises a first plate part (421) and a first support part (422), the first plate part (421) being fixedly connected between the free ends of the first spring piece part (21) along the first direction X; the first support part (422) being protrudingly arranged on the first plate part (421) and being spaced apart on the first plate part (421) along the first direction X; the second swing lever (52) comprises a second plate part (521) and a second protruding column part (522), the second plate part (521) being fixedly connected between the free ends of the second spring piece part (22) along the first direction X, the second protruding column part (522) being protrudingly arranged between the second plate part (521); viewed along the first direction X, the second protruding column part (522) is located between the first support part (422).

4. The linear motor device of claim 3, wherein the resilient member (60) is connected between the first support part (422) and the second protruding column part (522).

5. The linear motor device of claim 4, wherein The first support part (422) and the second protruding column part (522) are projected on the same straight line in the plane of the first plate part (421) and the second plate part (521), and the straight line is parallel to the first direction X.

6. The linear motor device of claim 4, wherein The first support part (422) extends along the second direction Y and extends into the upper side of the second plate part (521).

7. The linear motor device of claim 3, wherein An output shaft (70) is arranged on the second protruding column part (522) along the third direction Z, and the third direction Z is perpendicular to the first direction X and the second direction Y.

8. The linear motor device of claim 1, wherein The first magnetic structure (41) comprises a first permanent magnet (411) and a first magnetic conducting plate (412), the first magnetic conducting plate (412) is fixedly arranged on the first swing rod (42), and the first permanent magnet (411) is fixedly arranged on the first magnetic conducting plate (412) and is spaced apart from the stator assembly (30).

9. The linear motor device of claim 1, wherein The second magnetic structure (51) comprises a second permanent magnet (511) and a second magnetic conducting plate (512), the second magnetic conducting plate (512) is fixedly arranged on the second swing rod (52), and the second permanent magnet (511) is fixedly arranged on the second magnetic conducting plate (512) and is spaced apart from the stator assembly (30).

10. The linear motor device of claim 1, wherein The stator assembly (30) comprises a stator core (31) and a coil (32), the stator core (31) is provided with a plurality of magnetic shoe parts (311) arranged at intervals along the first direction X; the ends of the magnetic shoe parts (311) away from the first mover assembly (40) and the second mover assembly (50) are connected to each other to form a connecting part (312), and the two ends of the connecting part (312) along the first direction X respectively extend to the two sides of the magnetic shoe part (311); The coil (32) is sleeved on the magnetic shoe part (311); The fixed seat (10) comprises a first fixed seat (11) and a second fixed seat (12) connected in a clamping manner, and a half positioning groove (13) and a half clamping groove (14) are arranged on the first fixed seat (11) and the second fixed seat (12) respectively, when the first fixed seat (11) and the second fixed seat (12) are clamped, the half positioning groove (13) is clamped to form a positioning groove, the half clamping groove (14) is clamped to form a clamping groove, the clamping groove is located at the two ends of the positioning groove along the first direction X, and the clamping groove is arranged at the bottom of the positioning groove and is recessed inwardly relative to the inner wall of the positioning groove. The stator core (31) is clamped in the positioning groove, the bottom of the connecting part (312) is arranged in surface abutting manner with the bottom of the positioning groove, and the two ends of the connecting part (312) are limitedly arranged in the clamping groove.

Images