Stator assembly of linear motor and linear motor thereof

Abstract

The invention discloses a stator assembly of a linear motor and the linear motor thereof, and belongs to the field of motors, the stator assembly comprises a stator base, stator windings and a stator core, the stator base is used for fixing a plurality of stator windings, and each stator winding comprises a reel and a main magnetic pole core which are installed on the inner wall of the stator base; the stator winding is formed by winding an insulated copper wire on the surface of the main pole iron core, the reel and the main pole iron core are installed in the stator base, a cavity is formed in the main pole iron core, a magnetic conduction assembly is arranged in the cavity and comprises a magnetic conduction material plate installed in the cavity, and the magnetic conduction material plate is connected with the reel. According to the stator assembly of the linear motor and the linear motor thereof, the magnetic conductive material plates made of the silicon steel alloy material with high magnetic conductivity are adopted and are mounted in the cavity in a laminated manner, so that the motor can generate a stronger magnetic field during operation, and the magnetic conductive efficiency of the magnetic conductive assembly is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of motors, and particularly to a stator assembly of a linear motor and the linear motor. Background Art

[0002] A linear motor, as a device that directly converts electrical energy into mechanical energy of linear motion, plays a crucial role in modern industrial automation, transportation, precision manufacturing and other fields. Its core component is the stator assembly, which not only undertakes the important task of electromagnetic conversion, but also directly relates to the overall performance and service life of the linear motor.

[0003] According to the comparative document CN113812068B, a stator assembly and a stator for a motor are provided. The stator assembly omits the dovetail grooves formed in the iron core teeth in the prior art, and directly installs a slot wedge having a width substantially the same as that of the conductor groove into the conductor groove. The slot wedge is limited in the circumferential, radial and axial directions by the cooperation of the slot wedge retaining ring, the conductor and the side wall of the conductor groove, and at the same time the slot wedge can prevent the conductor from falling out of the conductor groove. In this way, compared with the stator assembly for a motor in the prior art, the slot wedge fixing structure does not reduce the width of the iron core teeth, so the magnetic flux of the iron core teeth is not easily saturated, thus avoiding an adverse effect of the slot wedge fixing structure on the performance of the stator. In addition, in the stator assembly for a motor according to the present invention, when installing the slot wedge, the slot wedge can be inserted into the conductor groove along the axial direction, and can also be inserted into the conductor groove along the radial direction. The installation method is flexible, which can improve the installation efficiency.

[0004] As an important part of the stator assembly, the design of the magnetic conduction component is directly related to the magnetic conduction efficiency and operating performance of the motor. The main problem with the traditional magnetic conduction component design is that although the magnetic conduction material used has certain magnetic conduction performance, at high frequencies or high magnetic field intensities, the magnetic permeability of the material will decrease significantly, resulting in an increase in magnetic resistance, which in turn affects the magnetic conduction efficiency and power density of the motor. In addition, the structure of the traditional magnetic conduction component lacks consideration for magnetic field distribution and magnetic circuit optimization, resulting in large losses in the process of magnetic energy transfer, further reducing the operating efficiency of the motor. Summary of the Invention

[0005] The purpose of the present invention is to provide a stator assembly of a linear motor and the linear motor, so as to solve the problem that although the magnetic conduction material used has certain magnetic conduction performance, at high frequencies or high magnetic field intensities, the magnetic permeability of the material will decrease significantly, resulting in an increase in magnetic resistance, which in turn affects the magnetic conduction efficiency and power density of the motor as mentioned in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A stator assembly of a linear motor, including a stator base, a stator winding, and a stator core. The stator base is used to fix a plurality of stator windings. The stator winding includes a winding frame and a main pole core installed on the inner wall of the stator base. The stator winding is made by winding an insulated copper wire on the surface of the main pole core. The winding frame and the main pole core are installed inside the stator base. A cavity is formed inside the main pole core, and a magnetic conduction component is arranged inside the cavity. The magnetic conduction component includes a magnetic conduction material plate installed inside the cavity. The magnetic conduction material plate is installed in the cavity in a laminated manner, and multiple layers of magnetic conduction material plates are connected by a support component. The bottom end of the magnetic conduction material plate is installed in the cavity through a positioning slider.

[0007] As a preferred technical solution of the present invention, the support component includes a support cylinder installed between multiple magnetic conduction material plates. A plurality of tapered ventilation holes are formed on the outer surface of the support cylinder, and activated crushed carbon is arranged inside the support cylinder.

[0008] As a preferred technical solution of the present invention, multiple layers of elastic sheets are installed on the opposite outer surfaces of the main pole core. The elastic sheet is an arc-shaped thin sheet. An air cavity is arranged between every two elastic sheets, and a second through groove is formed on the surface of the elastic sheet close to the air cavity.

[0009] As a preferred technical solution of the present invention, a breathable sponge is embedded on the surface of the winding frame close to the inner cavity of the main pole core, and a sealing gasket is installed on the outer surface of the breathable sponge.

[0010] As a preferred technical solution of the present invention, a protection component is arranged on the outer surface of the main pole core. The protection component includes an elastic support frame installed at the top end of the elastic sheet, and a wire mesh is fixedly installed on the surface of the elastic support frame.

[0011] As a preferred technical solution of the present invention, a plurality of heat dissipation rods are installed on the outer surface of the magnetic conduction material plate, and a plurality of through holes are formed on the outer surface of the magnetic conduction material plate. A first through groove is formed on the surface of the main pole core close to the wire mesh.

[0012] As a preferred technical solution of the present invention, the stator core includes a first core tooth portion and a second core tooth portion installed at the free end of the main pole core, a plurality of the first core tooth portions and the second core tooth portions are staggeredly installed inside the stator base, the first core tooth portion and the second core tooth portion are both provided with slot wedge assemblies along the radial inner surface, the slot wedge assemblies include conductor slots opened along the radial inner surface of the first core tooth portion and the second core tooth portion, a plurality of conductor bodies are installed inside the conductor slots arranged radially, a slot wedge baffle is installed along the radial inner surface of the conductor slot, and slot wedge pressure rings for limiting the conductor body are installed at both ends of the first core tooth portion and the second core tooth portion.

[0013] As a preferred technical solution of the present invention, sealing plates are installed inside the conductor slot at both ends of the conductor body. The conductor body is in an "S" shape and is assembled and installed inside the conductor slot. A film is arranged between every two conductor bodies.

[0014] As a preferred technical solution of the present invention, an interlocking component is arranged between the first core tooth portion, the second core tooth portion and the main pole core, and the interlocking component includes an arc-shaped plug plate installed on the back of the first core tooth portion and the second core tooth portion. The surface of the main pole core close to the first core tooth portion and the second core tooth portion is provided with a clamping groove, the plug plate is embedded in the inside of the clamping groove, and a limiting clamp block is installed on the outer surface of the plug plate.

[0015] As a preferred technical solution of the present invention, a linear motor comprises the stator assembly described in any one of claims 1 to 9.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention hollows out the interior of the main pole core to form a cavity that can serve as a magnetic field "buffer" to help adjust and optimize the distribution of the magnetic field and reduce the loss of the magnetic field during transmission. At the same time, a magnetic conductive material plate made of a silicon steel alloy material with high magnetic conductivity is used and installed in a stacked manner inside the cavity, so that the motor can generate a stronger magnetic field during operation, effectively improving the magnetic conductivity efficiency of the magnetic conductive component. This design can reduce magnetic resistance and make the magnetic field smoother during transmission, thereby improving the magnetic conductivity efficiency and power density of the motor.

[0018] 2. The design of the magnetic conductive component in the present invention not only takes into account the magnetic conductive properties of the material, but also optimizes the magnetic field distribution through the support component and the positioning slider structure. By optimizing the design of the magnetic conductive component and the stator winding, the electromagnetic noise generated by the motor during operation is effectively reduced. This design can reduce electromagnetic interference and improve the running stability of the motor.

[0019] 3. The present invention provides heat dissipation structures such as a support cylinder and breathable sponge in the magnetic conduction component, effectively improving the heat dissipation performance of the stator component. By increasing the heat dissipation area and heat dissipation channels, this design can reduce the temperature of the motor during operation, extend the service life of the motor, and improve its stability.

[0020] 4. In the present invention, in the setting of protection components such as multi-layer elastic sheets and wire meshes, among which, the insulated copper wire is wound on the surface of the elastic sheet. The flatness and stability of the elastic sheet help to ensure the uniformity and tightness of the winding, thereby improving the electrical performance of the entire structure and further enhancing the impact resistance and seismic resistance of the stator component.

[0021] 5. In the present invention, the conductor main body is stacked in an "S" shape, which can optimize the distribution of the electromagnetic field, make the magnetic field more uniform, thereby improving the electromagnetic performance of the motor. The stacked installation can further increase the number of conductors, improve the electromagnetic torque, enabling the motor to operate more easily under the same load. At the same time, the insulating film can effectively isolate the conductor from the external environment, helping to reduce the air gap between the conductors, preventing partial discharge and oxidation damage of the electrical winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the partial structure of the stator component of the present invention;

[0024] Figure 3 is of the present invention Figure 2 magnified schematic diagram of the structure at A;

[0025] Figure 4 is a schematic diagram of the stator winding structure of the present invention;

[0026] Figure 5 is a schematic diagram of the internal structure of the main pole iron core of the present invention;

[0027] Figure 6 is of the present invention Figure 5 magnified schematic diagram of the structure at B

[0028] Figure 7 is a schematic diagram of the internal structure of the winding frame of the present invention;

[0029] Figure 8 is a schematic diagram of the magnetic conduction component structure of the present invention;

[0030] Figure 9 is a schematic diagram of the internal structure of the support cylinder of the present invention;

[0031] Figure 10 is a schematic diagram of the stator iron core structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the plug-in board structure of the present invention.

[0033] In the figure: 1. Stator base; 2. Stator winding; 21. Winding frame; 22. Main pole iron core; 23. Magnetic conduction component; 231. Magnetic conduction material plate; 232. Support component; 2321. Support cylinder; 2322. Vent hole; 2323. Active crushed carbon; 233. Positioning slider; 234. Through hole; 235. Sealing gasket; 236. Vent sponge; 24. Protection component; 241. Wire mesh; 242. Elastic support frame; 243. Heat dissipation rod; 244. Elastic sheet; 245. First through groove; 246. Second through groove; 247. Air cavity; 3. Stator iron core; 31. First iron core tooth part; 32. Second iron core tooth part; 33. Slot wedge component; 331. Conductor slot; 332. Sealing plate; 333. Conductor body; 334. Slot wedge pressing ring; 335. Slot wedge baffle; 336. Thin film; 4. Fastening screw; 5. Fitting component; 51. Plug-in board; 52. Limit block; 53. Positioning groove. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] In this article, referring to "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The phrase "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0036] Please refer to Figures 1 to 11 , the present invention provides a stator assembly of a linear motor, which includes a stator base 1, a stator winding 2, and a stator iron core 3. The stator base 1 is used to fix a plurality of stator windings 2.

[0037] Among them, fixing the stator winding 2 on the stator base 1 through a limit screw can ensure that it will not move or deform during the operation of the motor, thereby improving the stability and reliability of the motor; by installing a plurality of modules of the stator winding 2, it is also convenient to replace and use it to ensure a stable magnetic field.

[0038] In the technical solution of the embodiment of the present application, the stator winding 2 includes a winding frame 21 installed on the inner wall of the stator base 1 and a main pole iron core 22. The stator winding 2 is made by winding insulated copper wires on the surface of the main pole iron core 22. The winding frame 21 and the main pole iron core 22 are installed inside the stator base 1 through the same fastening screw 4.

[0039] Among them, the winding frame 21 is an important component for installing the stator winding 2, which provides support and fixation for winding the copper wires; the stator winding 2 is made by winding insulated copper wires on the surface of the main pole iron core 22. The copper wires have good electrical conductivity and can efficiently transmit current to generate a strong magnetic field. The insulating layer ensures that the current will not leak to the outside, guaranteeing the safe operation of the motor; when the stator winding 2 is energized, the current flows in the copper wires to generate a magnetic field, and this magnetic field is transmitted to other parts of the motor through the main pole iron core 22 and interacts with the rotor to generate linear motion.

[0040] In the technical solution of the embodiment of the present application, a cavity is formed inside the main pole iron core 22, and a magnetic conduction component 23 is arranged inside the cavity. The magnetic conduction component 23 includes a magnetic conduction material plate 231 installed inside the cavity. The magnetic conduction material plate 231 is usually made of a silicon steel alloy material with high magnetic permeability. The magnetic conduction material plates 231 are installed in a laminated manner inside the cavity, and multiple layers of magnetic conduction material plates 231 are connected by a support component 232. The bottom end of the magnetic conduction material plate 231 is installed inside the cavity through a positioning slider 233.

[0041] Among them, by hollowing out the inside of the main pole iron core 22, the formed cavity can serve as a magnetic field "buffer zone" to help adjust and optimize the distribution of the magnetic field, reduce the loss of the magnetic field during transmission. At the same time, the magnetic conduction material plate 231 made of a silicon steel alloy material with high magnetic permeability is installed in a laminated manner inside the cavity, enabling the motor to generate a stronger magnetic field during operation and effectively improving the magnetic conduction efficiency of the magnetic conduction component 23.

[0042] In some other embodiments, the support component 232 includes a support cylinder 2321 installed between multiple magnetic conduction material plates 231. Multiple tapered air vents 2322 are formed on the outer surface of the support cylinder 2321, and activated crushed carbon 2323 is arranged inside the support cylinder 2321.

[0043] Among them, the activated crushed carbon 2323 has a high specific surface area and porosity, and can effectively adsorb and remove impurities, pollutants and odor substances in the environment around the magnetic conduction component 23. This helps to keep the magnetic conduction component 23 clean and its performance stable, reducing performance degradation or failures caused by the accumulation of impurities; the design of the tapered holes can optimize the flow of air inside the support cylinder 2321, facilitating the action of the activated crushed carbon 2323.

[0044] In some other embodiments, a plurality of elastic sheets 244 are mounted on the opposite outer surfaces of the main pole core 22. The elastic sheets 244 are arc-shaped thin sheets made of spring steel. An air cavity 247 is provided between every two elastic sheets 244, and a second through groove 246 is formed on the surface of the elastic sheet 244 close to the air cavity 247.

[0045] Among them, insulated copper wires are wound around the surface of the elastic sheet 244. The flatness and stability of the elastic sheet 244 help to ensure the uniformity and tightness of the winding, thereby improving the electrical performance of the entire structure. And with the cooperation of the elastic sheet 244 and the air cavity 247, the impact resistance and seismic resistance of the stator assembly are further improved.

[0046] In some other embodiments, a breathable sponge 236 is embedded in the surface of the winding frame 21 close to the inner cavity of the main pole core 22, and a sealing gasket 235 is mounted on the outer surface of the breathable sponge 236.

[0047] Among them, due to its soft and elastic material, the breathable sponge 236 plays a role of shock absorption and buffering between the winding frame 21 and the main pole core 22. The breathable sponge 236 has good air permeability. It can promote air circulation to a certain extent and help with heat dissipation. When the motor runs for a long time, it will generate a certain amount of heat. The breathable sponge 236 allows air to flow around the main pole core 22, which helps to take away the heat and prevent the motor from overheating. The sealing gasket 235 mounted on the outer surface of the breathable sponge 236 further enhances its sealing performance. The sealing gasket 235 usually has high elasticity and compression resistance, and can closely fit between the winding frame 21 and the main pole core 22 to prevent impurities such as gas, liquid or dust from entering the interior of the motor.

[0048] In some other embodiments, a protection assembly 24 is provided on the outer surface of the main pole core 22. The protection assembly 24 includes an elastic support frame 242 mounted on the top of the elastic sheet 244, and a wire mesh 241 is fixedly mounted on the surface of the elastic support frame 242.

[0049] Among them, the wire mesh 241 not only has a certain elasticity, but also can ensure that air can freely circulate around the copper wire wound on the surface of the main pole core 22, which helps with heat dissipation. When the motor runs, the main pole core 22 will generate a certain amount of heat, and the wire mesh 241 can promote the dissipation of heat to prevent the motor from overheating. The wire mesh 241 can also play a role of electromagnetic shielding. It can block or weaken the influence of the external electromagnetic field on the interior of the motor, thereby protecting the electrical performance and safety of the motor.

[0050] In some other embodiments, a plurality of heat dissipation rods 243 are mounted on the outer surface of the magnetic conductive material plate 231, and a plurality of through holes 234 are formed on the outer surface of the magnetic conductive material plate 231. A first through groove 245 is formed on the surface of the main pole core 22 close to the wire mesh 241.

[0051] Among them, when the motor is running, the main pole iron core 22 will generate a large amount of heat, and the heat dissipation rods 243 can quickly conduct this heat into the air to prevent the motor from overheating; in addition, the multiple heat dissipation rods 243 fixedly installed on the surface of the magnetic conductive material plate 231 can also enhance the structural stability of the magnetic conductive material plate 231 to a certain extent, avoiding the magnetic conductive material plate 231 from being impacted and cracked, thereby affecting the magnetic field distribution.

[0052] In some other embodiments, the stator core 3 includes a first core tooth portion 31 and a second core tooth portion 32 installed at the free ends of the main pole iron core 22. A plurality of the first core tooth portions 31 and the second core tooth portions 32 are alternately installed inside the stator base 1, and groove wedge assemblies 33 are provided on the surfaces of the first core tooth portion 31 and the second core tooth portion 32 along the radial inner side.

[0053] Among them, when the motor is running, by alternately installing the first core tooth portions 31 and the second core tooth portions 32 with different sizes, the distribution of the magnetic field in the stator core 3 can be made more uniform, reducing magnetic field distortion and magnetic leakage phenomena, thereby improving the efficiency and performance of the motor; by alternately installing the first core tooth portions 31 and the second core tooth portions 32 with different sizes, the eddy current loss and hysteresis loss of the iron core can be reduced. Eddy current loss and hysteresis loss are common loss forms in the motor iron core, which will cause the reduction of the motor efficiency and the increase of the temperature. By optimizing the shape and size of the core tooth portion, the distribution of the magnetic field in the iron core can be made more reasonable, thereby reducing these losses and improving the efficiency of the motor.

[0054] In some other embodiments, the groove wedge assembly 33 includes conductor grooves 331 opened on the surfaces of the first core tooth portion 31 and the second core tooth portion 32 along the radial inner side. A plurality of conductor bodies 333 are installed inside the conductor grooves 331 arranged along the radial direction. A groove wedge baffle 335 is installed on the surface of the conductor grooves 331 along the radial inner side, and groove wedge pressing rings 334 for limiting the conductor bodies 333 are installed at both ends of the first core tooth portion 31 and the second core tooth portion 32.

[0055] Among them, the conductor grooves 331 are opened on the surfaces of the first core tooth portion 31 and the second core tooth portion 32 along the radial inner side, providing precise positioning and installation space for the conductor bodies 333; the groove wedge baffle 335 is installed on the surface of the conductor grooves 331 along the radial inner side, while the groove wedge pressing rings 334 are installed at both ends of the core tooth portion, jointly limiting and fixing the conductor bodies 333. This double fixing method effectively prevents the conductor bodies 333 from loosening and displacing during the operation of the motor, ensuring the normal operation of the motor.

[0056] In some other embodiments, sealing plates 332 are installed inside both ends of the conductor body 333 in the conductor groove 331. The conductor body 333 is in an "S" shape and is assembled and installed inside the conductor groove 331. A thin film 336 is provided between every two conductor bodies 333, and the thin film 336 is made by pressing an insulating film.

[0057] Among them, the conductor body 333 is stacked in an "S" shape, which can optimize the distribution of the electromagnetic field, make the magnetic field more uniform, and thus improve the electromagnetic performance of the motor. The stacked installation can further increase the number of conductor bodies 333, improve the electromagnetic torque, and enable the motor to operate more easily when bearing the same load; the insulating film thin film 336 can effectively isolate the contact between the conductor body 333 and the external environment, help reduce the air gap between the conductor bodies 333, and prevent partial discharge and oxidation damage of the electrical windings.

[0058] In some other embodiments, a fitting component 5 is provided between the first iron core tooth part 31, the second iron core tooth part 32 and the main pole iron core 22. The fitting component 5 includes arc-shaped insertion plates 51 installed on the backs of the first iron core tooth part 31 and the second iron core tooth part 32. Positioning slots 53 are formed on the surfaces of the main pole iron core 22 close to the first iron core tooth part 31 and the second iron core tooth part 32. The insertion plates 51 are embedded inside the positioning slots 53, and limiting blocks 52 are installed on the outer surfaces of the insertion plates 51.

[0059] Among them, through the cooperation of the insertion plates 51 and the limiting blocks 52, the iron core tooth part and the positioning slot 53 are clamped and installed. In this way, when it is necessary to repair or replace the stator assembly, the relevant components can be conveniently disassembled and replaced, reducing the maintenance difficulty and cost.

[0060] In the technical solution of the embodiment of the present application, a linear motor includes a stator assembly.

[0061] Among them, the linear motor is mainly composed of a stator and a mover. The stator is usually fixed on a base, and the mover moves linearly along the axis of the stator; the stator assembly plays a role in generating a magnetic field and supporting the mover in the linear motor. The magnetic field generated after the stator winding 2 is energized interacts with the mover magnetic field to generate a Lorentz force to push the mover to move. At the same time, the structural design of the stator assembly also affects the performance of the linear motor.

[0062] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A stator assembly of a linear motor, comprising a stator base (1), a stator winding (2), and a stator core (3), characterized in that: The stator base (1) is used to fix a plurality of stator windings (2); The stator winding (2) comprises a winding frame (21) and a main magnetic pole core (22) mounted on the inner wall of the stator base (1); the stator winding (2) is made by winding an insulated copper wire on the surface of the main magnetic pole core (22); the winding frame (21) and the main magnetic pole core (22) are mounted inside the stator base (1); A cavity is provided inside the main pole core (22), a magnetic conductive component (23) is arranged inside the cavity, and the magnetic conductive component (23) comprises a magnetic conductive material plate (231) installed inside the cavity. The magnetic conductive material plate (231) is installed inside the cavity in a stacked manner, and the multiple layers of magnetic conductive material plates (231) are connected by a supporting component (232). The bottom end of the magnetic conductive material plate (231) is installed inside the cavity via a positioning slider (233).

2. A stator assembly of a linear motor according to claim 1, characterized in that: The support assembly (232) comprises a support tube (2321) installed between a plurality of magnetic conductive material plates (231), a plurality of conical air holes (2322) are provided on the outer surface of the support tube (2321), and activated carbon fragments (2323) are arranged inside the support tube (2321).

3. The stator assembly of a linear motor according to claim 1, characterized in that: A plurality of layers of elastic sheets (244) are installed on the relative outer surfaces of the main pole core (22); the elastic sheets (244) are arc-shaped thin sheets, an air cavity (247) is provided between every two elastic sheets (244), and a second through groove (246) is provided on the surface of the elastic sheet (244) close to the air cavity (247).

4. The stator assembly of a linear motor according to claim 1, characterized in that: A breathable sponge (236) is embedded on the surface of the winding frame (21) close to the inner cavity of the main magnetic pole core (22), and a sealing gasket (235) is installed on the outer surface of the breathable sponge (236).

5. The stator assembly of a linear motor according to claim 1, characterized in that: The outer surface of the main magnetic pole core (22) is provided with a protection component (24), and the protection component (24) comprises an elastic support frame (242) installed on the top of an elastic sheet (244), and a steel wire mesh (241) is fixedly installed on the surface of the elastic support frame (242).

6. A stator assembly of a linear motor according to claim 5, characterized in that: A plurality of heat-conducting heat dissipation rods (243) are installed on the outer surface of the magnetic conductive material plate (231), and a plurality of through holes (234) are provided on the outer surface of the magnetic conductive material plate (231). A first through groove (245) is provided on the surface of the main magnetic pole core (22) close to the steel wire mesh (241).

7. The stator assembly of a linear motor according to claim 1, characterized in that: The stator core (3) comprises a first core tooth portion (31) and a second core tooth portion (32) mounted on the free end of the main pole core (22); a plurality of the first core tooth portions (31) and the second core tooth portions (32) are staggeredly mounted inside the stator base (1); and a slot wedge assembly (33) is provided along the radial inner surface of the first core tooth portion (31) and the second core tooth portion (32); The slot wedge assembly (33) comprises a conductor slot (331) provided along the radial inner surface of the first core tooth portion (31) and the second core tooth portion (32); a plurality of conductor bodies (333) are installed inside the conductor slot (331) arranged radially; a slot wedge baffle (335) is installed along the radial inner surface of the conductor slot (331); and slot wedge pressure rings (334) for limiting the conductor body (333) are installed at both ends of the first core tooth portion (31) and the second core tooth portion (32).

8. The stator assembly of a linear motor according to claim 7, characterized in that: The conductor slot (331) is provided with sealing plates (332) at both ends of the conductor body (333). The conductor body (333) is in an "S" shape and is assembled and installed inside the conductor slot (331). A film (336) is provided between every two conductor bodies (333).

9. The stator assembly of a linear motor according to claim 7, characterized in that: A chimeric assembly (5) is provided between the first core tooth portion (31), the second core tooth portion (32) and the main pole core (22); the chimeric assembly (5) comprises an arc-shaped plug plate (51) mounted on the back of the first core tooth portion (31) and the second core tooth portion (32); a clamping groove (53) is provided on the surface of the main pole core (22) close to the first core tooth portion (31) and the second core tooth portion (32); the plug plate (51) is embedded in the clamping groove (53), and a limit clamping block (52) is installed on the outer surface of the plug plate (51).

10. A linear motor, characterized in that: A stator assembly comprising any one of claims 1 to 9.

Images