Linear motor mover structure and linear motor

Abstract

This invention provides a linear motor mover structure and a linear motor. The linear motor mover structure includes a mover core (11) and a mover winding (13). The mover core (11) includes core teeth (111), a core yoke (112), and a magnetic field generating device (12). The mover winding (13) is wound on the core teeth (111). The magnetic field generating device (12) is located at the top and / or bottom of the core teeth (111). The length direction of the magnetic field generating device (12) is consistent with the stacking direction of the mover core (11), and the magnetization direction of the magnetic field generating device (12) is consistent with the direction of the magnetic field generated after the mover winding (13) is energized. According to the linear motor mover structure of this invention, the thrust of the linear motor can be increased with a smaller size, meeting the thrust enhancement requirements of the linear motor.

Description

Technical Field

[0001] This invention relates to the field of linear motor technology, and more specifically, to a linear motor actuator structure and a linear motor. Background Technology

[0002] A linear motor can be viewed as a structural variation of a rotary motor; it can be seen as a rotary motor cut open radially and then laid flat. The working principle of a linear motor is to input a large current and move at high speed with great acceleration. Due to its high speed, high precision, and large thrust, it is increasingly widely used in machine tools and other fields.

[0003] Linear motors have a relatively simple structure. Once the motor core is molded and finalized, different thrust levels can only be achieved by changing the stacking height. For high-thrust linear motors, the thrust can also be increased by increasing the stacking height, i.e., increasing the volume. However, this results in a larger linear motor size, which poses certain difficulties for manufacturing, application, and assembly. Summary of the Invention

[0004] The main objective of this invention is to provide a linear motor mover structure and a linear motor that can increase the thrust of the linear motor with a smaller size, thereby meeting the thrust enhancement requirements of the linear motor.

[0005] To achieve the above objectives, according to one aspect of the present invention, a linear motor mover structure is provided, comprising a mover core and a mover winding. The mover core includes core teeth, a core yoke, and a magnetic field generating device. The mover winding is wound on the core teeth. The magnetic field generating device is disposed at the top and / or bottom of the core teeth. The length direction of the magnetic field generating device is consistent with the stacking height direction of the mover core. The magnetization direction of the magnetic field generating device is consistent with the direction of the magnetic field generated after the mover winding is energized.

[0006] Furthermore, a first slot is provided on the top surface of the iron core teeth away from the iron core yoke, and the magnetic field generating device is embedded in the first slot; or, the magnetic field generating device is pasted and fixed on the top surface of the iron core teeth away from the iron core yoke.

[0007] Furthermore, the iron core yoke has a receiving groove on the side near the iron core teeth, at least part of which corresponds to the iron core teeth, and the magnetic field generating device is embedded in the receiving groove.

[0008] Furthermore, along the arrangement direction of the core teeth, at least part of the receiving groove is offset relative to the core teeth.

[0009] Furthermore, the width of the receiving groove along the arrangement direction of the iron core teeth is greater than the width of the iron core teeth along their own arrangement direction.

[0010] Furthermore, the magnetic field generating device is a permanent magnet or an auxiliary coil.

[0011] Furthermore, the mover winding includes a mover coil and insulating slot paper, which is disposed between the mover winding and the iron core teeth and forms an insulating gap between the mover winding and the iron core teeth.

[0012] Furthermore, the moving coil has an inner cavity, with iron core teeth located inside the inner cavity. The length of the inner cavity is greater than the length of the iron core teeth, and the width of the inner cavity is greater than the width of the iron core teeth. A gap is formed between the cavity wall and the iron core teeth, and insulating groove paper is located within the gap.

[0013] Furthermore, a limiting structure is provided on the mover core, and the limiting structure forms a limiting cooperation with the mover winding to limit the mover winding on the mover core.

[0014] Furthermore, the limiting structure includes a fixing clip and an mounting strip. A second slot is provided on the side of the iron core yoke away from the iron core teeth. The mounting strip is installed in the second slot. Threaded holes are provided at both ends of the mounting strip. The fixing clip includes a clip tooth and a stop. The stop is pressed against the outside of the mover winding. The clip tooth is screwed to the mounting strip for fixation.

[0015] Furthermore, the locking teeth are made of insulating material, and the width of the locking teeth is the same as the width of the iron core teeth. The locking teeth are inserted between the end of the iron core teeth and the mover winding.

[0016] Furthermore, the moving coil includes an inner winding, an outer winding, and winding ends, and the insulating slot paper includes an inner sheath, an outer sheath, and an end sheath. The inner sheath covers the inner winding, the outer sheath covers the outer winding, and the end sheath covers the winding ends.

[0017] Furthermore, there are two outer sheaths, located on both sides of the inner sheath. The outer and inner sheaths are connected by a bending section. The width of the outer sheath is half that of the inner sheath. The two outer sheaths are spliced ​​together and cover the outer ring of the winding. Each of the two opposite sides of the mover coil is covered with an insulating slot paper.

[0018] Furthermore, insulating groove paper is attached to the surface of the moving coil.

[0019] According to another aspect of the present invention, a linear motor is provided, including a linear motor mover structure, which is the linear motor mover structure described above.

[0020] According to the technical solution of this invention, the linear motor mover structure includes a mover core and a mover winding. The mover core includes core teeth, a core yoke, and a magnetic field generating device. The mover winding is wound on the core teeth. The magnetic field generating device is located at the top and / or bottom of the core teeth. The length direction of the magnetic field generating device is consistent with the stacking direction of the mover core. The magnetization direction of the magnetic field generating device is consistent with the direction of the magnetic field generated after the mover winding is energized. This linear motor mover structure, by setting the magnetic field generating device at the top and / or bottom of the core teeth and ensuring that the magnetization direction of the magnetic field generating device is consistent with the direction of the magnetic field generated after the mover winding is energized, can increase the magnetic field strength generated by the mover winding by superimposing the magnetic field of the mover winding, thereby effectively increasing the thrust of the linear motor and meeting the thrust increase requirement of the linear motor without increasing its size. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 A three-dimensional structural diagram of the linear motor actuator structure according to an embodiment of the present invention is shown;

[0023] Figure 2 An exploded structural diagram of the linear motor actuator structure according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of the insulating groove paper structure of the linear motor mover structure according to an embodiment of the present invention is shown;

[0025] Figure 4 A three-dimensional structural diagram of the mover winding of a linear motor mover structure according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram of the fixing clip for the linear motor actuator structure according to an embodiment of the present invention is shown; and

[0027] Figure 6 A schematic diagram of another moving core structure of the linear motor moving core structure according to an embodiment of the present invention is shown.

[0028] The above figures include the following reference numerals:

[0029] 11. Moving core; 111. Core tooth; 112. Core yoke; 113. First slot; 114. Second slot; 115. Receiving slot; 12. Magnetic field generating device; 13. Moving winding; 131. Moving coil; 1311. Inner winding; 1312. Outer winding; 1313. Winding end; 132. Insulating slot paper; 1321. Inner sheath; 1322. Outer sheath; 1323. End sheath; 1324. Bending section; 14. Fixing clip; 141. Clip tooth; 142. Edge retainer; 143. Through hole; 15. Mounting strip; 151. Threaded hole. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] See also Figures 1 to 6 As shown, according to an embodiment of the present invention, the linear motor mover structure includes a mover core 11 and a mover winding 13. The mover core 11 includes core teeth 111, a core yoke 112, and a magnetic field generating device 12. The mover winding 13 is wound on the core teeth 111. The magnetic field generating device 12 is disposed at the top and / or bottom of the core teeth 111. The length direction of the magnetic field generating device 12 is consistent with the stacking direction of the mover core 11. The magnetization direction of the magnetic field generating device 12 is consistent with the direction of the magnetic field generated after the mover winding 13 is energized.

[0032] The linear motor mover structure has a magnetic field generating device 12 installed at the top and / or bottom of the iron core teeth 111, and the magnetization direction of the magnetic field generating device 12 is consistent with the direction of the magnetic field generated after the mover winding 13 is energized. The magnetic field strength generated by the mover winding 13 can be increased by superimposing the magnetic field of the mover winding 13 with the magnetic field generating device 12, thereby effectively increasing the thrust of the linear motor and meeting the thrust increase requirement of the linear motor without increasing the size of the linear motor.

[0033] In one embodiment, a first slot 113 is provided on the top surface of the iron core tooth 111 away from the iron core yoke 112, and the magnetic field generating device 12 is embedded in the first slot 113.

[0034] In this embodiment, by creating a first slot 113 on the top surface of the iron core yoke 112, the magnetic field generator 12 can be fixed within the first slot 113, facilitating its installation. During installation, the depth of the first slot 113 can be adjusted so that the top surface of the magnetic field generator 12 is flush with or lower than the top of the first slot 113. This results in a mover core 11 with identical dimensions to the original, significantly improving magnetic field strength and thus greatly increasing the thrust of the linear motor. To ensure the stability of the installation structure of the magnetic field generator 12 within the first slot 113, glue can be placed inside the first slot 113, allowing the magnetic field generator 12 to be adhesively fixed within it.

[0035] In one embodiment, the magnetic field generating device 12 is attached and fixed to the top surface of the iron core tooth 111 away from the iron core yoke 112.

[0036] In this embodiment, the top surface of the iron core tooth 111 is a plane, and the magnetic field generating device 12 can be directly placed on the top surface of the iron core tooth 111 and fixed by adhesive. Since the setting of the magnetic field generating device 12 is not limited by the structure of the iron core tooth 111, it can have a larger setting area, which helps the mover winding 13 to generate a larger magnetic field strength, thereby enabling the linear motor to have a larger thrust.

[0037] In one embodiment, the iron core yoke 112 is provided with a receiving groove 115 on the side near the iron core tooth 111, at least a portion of the receiving groove 115 is provided corresponding to the iron core tooth 111, and the magnetic field generating device 12 is embedded in the receiving groove 115.

[0038] In this embodiment, a receiving groove 115 is provided on the side of the iron core yoke 112 near the iron core teeth 111, and a magnetic field generating device 12 is provided in the receiving groove 115. The magnetic field generating device 12 can be used to increase the magnetic field strength of the mover winding 13. Since the setting of the magnetic field generating device 12 is not limited by the structure of the iron core teeth 111, it can have a larger setting area, assisting the mover winding 13 in generating a greater magnetic field strength, thereby enabling the linear motor to have greater thrust.

[0039] In this embodiment, the receiving groove 115 may penetrate the iron core yoke 112 along its width direction, or it may not penetrate the iron core yoke 112, forming a receiving groove structure with an opening on only one side. The magnetic field generating device 12 may be fixedly fitted with the receiving groove 115 by interference fit, or it may be fixed by means of adhesive or other methods.

[0040] In one embodiment, at least a portion of the receiving groove 115 is offset relative to the core teeth 111 along the arrangement direction of the core teeth 111.

[0041] In this embodiment, the receiving groove 115 is offset from the iron core tooth 111 by a certain distance, which allows the magnetic field generating device 12 located in the receiving groove 115 to be offset from the iron core tooth 111 by a certain distance, thereby better optimizing the magnetic circuit at the iron core yoke 112 and giving the linear motor better working performance.

[0042] In one embodiment, the width of the receiving slot 115 along the arrangement direction of the iron core teeth 111 is greater than the width of the iron core teeth 111 along its own arrangement direction, which allows the magnetic field generating device 12 located in the receiving slot 115 to have a larger magnetic flux area, assisting the mover winding 13 to generate a larger magnetic field strength, and further improving the thrust of the linear motor.

[0043] In one embodiment, the magnetic field generating device 12 is a permanent magnet or an auxiliary coil.

[0044] In this embodiment, when the magnetic field generating device 12 is a permanent magnet, the magnetization direction of the permanent magnet is consistent with the direction of the magnetic field generated after the mover winding 13 is energized. This enhances the magnetic flux of the core teeth 111 of the mover core 11, thereby increasing the motor thrust. Simultaneously, this portion of the permanent magnet can exert a force on the stator permanent magnet of the linear motor. Furthermore, the difference in cross-sectional area and angle between the permanent magnet on the mover core 11 and the stator permanent magnet further increases the motor thrust, thus increasing the overall thrust of the linear motor during operation. Therefore, embedding permanent magnets in the mover core of the linear motor effectively increases the motor thrust.

[0045] When the magnetic field generating device 12 is an auxiliary coil, the magnetic field generated by the energized auxiliary coil is in the same direction as the magnetic field generated by the energized mover winding 13. This enhances the magnetic flux of the core teeth 111 of the mover core 11, thereby increasing the motor thrust. Furthermore, the better consistency between the magnetic field generated by the auxiliary coil and the magnetic field generated by the energized mover winding 13 results in a stronger magnetic field enhancement effect.

[0046] In one embodiment, the mover winding 13 is a self-adhesive winding, such as self-adhesive enameled wire.

[0047] In one embodiment, the mover winding 13 includes a mover coil 131 and an insulating slot 132. The insulating slot 132 is disposed between the mover winding 13 and the core teeth 111 and forms an insulating gap between the mover winding 13 and the core teeth 111.

[0048] The self-adhesive winding has no frame. If the unframed mover winding 13 is directly embedded in the mover core 11, poor insulation withstand voltage will inevitably occur. In order to prevent poor insulation withstand voltage, this embodiment uses insulating slot paper 132 to wrap the mover coil 131, thereby forming an insulating barrier between the mover coil 131 and the mover core 11, avoiding direct contact between the mover winding 13 and the mover core 11, and avoiding abnormal insulation withstand voltage of the motor.

[0049] In one embodiment, the moving coil 131 has an inner cavity, and the iron core tooth 111 is located in the inner cavity. The length dimension of the inner cavity is greater than the length dimension of the iron core tooth 111, and the width dimension of the inner cavity is greater than the width dimension of the iron core tooth 111. A gap is formed between the cavity wall of the inner cavity and the iron core tooth 111, and the insulating groove paper 132 is located in the gap.

[0050] In this embodiment, the length of the moving coil 131 is greater than 3mm on one side relative to the length of the core teeth 111 of the moving core 11, so that a sufficient gap can be formed between the moving coil 131 and the core teeth 111 to install the insulating groove paper 132 to form insulation isolation.

[0051] In one embodiment, a limiting structure is provided on the mover core 11, and the limiting structure forms a limiting cooperation with the mover winding 13 to limit the mover winding 13 on the mover core 11.

[0052] Because the moving coil 131 and the moving core 11 are spaced apart, and the inner cavity size of the moving coil 131 is larger than the size of the core teeth 111 of the moving core 11, the moving coil 131 is prone to positional displacement relative to the core teeth 111 when placed on the core teeth 111. By setting a limiting structure, the limiting structure is fixedly connected to the moving core 11, and the limiting structure limits the moving winding 13, which can prevent the moving winding 13 from positional displacement relative to the moving core 11, thereby improving the stability and reliability of the mounting structure of the moving winding 13 on the moving core 11.

[0053] In one embodiment, the limiting structure includes a fixing clip 14 and an mounting strip 15. The iron core yoke 112 has a second slot 114 on the side away from the iron core teeth 111. The mounting strip 15 is installed in the second slot 114. Threaded holes 151 are provided at both ends of the mounting strip 15. The fixing clip 14 includes a locking tooth 141 and a retaining edge 142. The retaining edge 142 is pressed against the outside of the mover winding 13. The locking tooth 141 is screwed and fixed to the mounting strip 15.

[0054] In this embodiment, the fixing clips 14 are disposed at both ends of the iron core teeth 111 and include the clip teeth 141 and the retaining edge 142. The retaining edge 142 is pressed against the outside of the mover winding 13, which can limit the installation of the mover winding 13 and prevent the mover winding 13 from shifting relative to the mover iron core 11. The clip teeth 141 are provided with through holes 143. The clip teeth 141 are fixedly connected to the mounting strip 15 disposed in the iron core yoke 112 by bolts through the through holes 143. The mounting strip 15 can be used to fix the clip teeth 141, so that the relative position between the clip teeth 141 and the mover iron core 11 is fixed. The fixed structure of the clip teeth 141 also allows the retaining edge 142 to effectively fix the installation position of the mover winding 13 on the mover iron core 11, thereby improving the stability and reliability of the installation structure of the mover winding 13 on the mover iron core 11.

[0055] In one embodiment, the mounting strip 15 is a T-shaped strip and the second slot 114 is a T-shaped groove, which enables the two to have a good assembly effect and can effectively prevent the mounting strip 15 from coming out of the second slot 114.

[0056] In one embodiment, a plurality of locking teeth 141 are spaced apart and fixedly connected by a retaining edge 142. The locking teeth 141 and the retaining edge 142 can be integrally formed.

[0057] In one embodiment, the length of the mounting strip 15 on the locking tooth 141 is different from the length of the other locking teeth 141. The length of the mounting strip 15 on the locking tooth 141 is longer, while the length of the other locking teeth 141 is shorter. Since the moving coil 131 is not located on the iron core yoke 112, the locking teeth 141 that are not on the mounting strip 15 do not need an extra length to be assembled with the mounting strip 15. The length can be made shorter, which saves more material and does not affect the isolation effect of the locking teeth 141 on the moving coil 131.

[0058] In one embodiment, the retaining tooth 141 is made of insulating material, and the width of the retaining tooth 141 is the same as the width of the iron core tooth 111. The retaining tooth 141 is inserted between the end of the iron core tooth 111 and the mover winding 13.

[0059] In this embodiment, the retaining tooth 141 is made of insulating material and is inserted into the end of the iron core tooth 111, which can further isolate the iron core tooth 111 from the moving coil 131 and effectively prevent the lead wire of the moving coil 131 from contacting the iron core tooth 111, thus simultaneously enhancing the overall insulation withstand voltage performance of the motor.

[0060] In one embodiment, the mover coil 131 includes an inner winding 1311, an outer winding 1312, and a winding end 1313. The insulating slot paper 132 includes an inner sheath 1321, an outer sheath 1322, and an end sheath 1323. The inner sheath 1321 covers the inner winding 1311, the outer sheath 1322 covers the outer winding 1312, and the end sheath 1323 covers the winding end 1313.

[0061] In this embodiment, the insulating groove paper 132 can form a good covering effect on the moving coil 131, effectively avoiding direct contact between the moving coil 131 and the iron core teeth 111, thereby enabling the motor to have good insulation and withstand voltage performance.

[0062] In one embodiment, there are two outer sheaths 1322, which are located on both sides of the inner sheath 1321. The outer sheaths 1322 and the inner sheath 1321 are connected by a bending section 1324. The width of the outer sheath 1322 is half that of the inner sheath 1321. The two outer sheaths 1322 are spliced ​​and wrapped around the outer ring 1312 of the winding. Each of the two opposite sides of the moving coil 131 is covered with an insulating groove paper 132, wherein the width of the bending section 1324 is adapted to the thickness of the moving coil 131.

[0063] See also Figure 3 As shown, in this embodiment, the insulating groove paper 132 is formed by folding insulating paper, and the insulating paper is arranged according to... Figure 3 Cut at position C, and cut to the dotted line indicated by A. Then, bend along the creases at A and B as shown in the diagram. When bending, bend in the opposite direction along the crease at A, and bend forward along the crease at B. The forward bend here refers to... Figure 3 The folds within the paper's surface are bent in one direction, while the reverse folds point towards... Figure 3The paper is bent outwards. After bending in the above manner, a ring-shaped insulating groove paper 132 is formed. The two outer sheaths 1322 located on both sides of the inner sheath 1321 are located outside the outer winding 1312. After the two outer sheaths 1322 are folded in half, they can completely cover the outer winding 1312. The inner sheath 1321 can completely cover the inner winding 1311. The two end sheaths 1323 at both ends each cover half of the winding end 1313. When the two insulating groove papers 132 are combined to cover a moving coil 131, they can cover the moving coil 131. The entire inner surface of the motor, as well as the other surfaces except the outer end face, are covered by the tooth 141, which is inserted between the end of the iron core tooth 111 and the mover winding 13. This allows the two outer end faces of the mover coil 131 to be covered. Therefore, the two insulating slots 132 cooperate with the tooth 141 to form an all-round coverage of the mover coil 131, so that the mover coil 131 is completely located in the space formed by the two insulating slots 132 and the tooth 141. This effectively isolates the contact between the mover coil 131 and the iron core tooth 111, and enhances the overall insulation and withstand voltage performance of the motor.

[0064] In one embodiment, insulating slotted paper 132 is attached to the surface of the mover coil 131.

[0065] The insulating groove paper 132 can be attached to the surface of the moving coil 131 by adhesive, or it can be made by heating and curing the self-adhesive winding so that the insulating groove paper 132 adheres tightly to the surface of the self-adhesive winding during the heating and curing process, thus achieving a better protective effect.

[0066] According to an embodiment of the present invention, the linear motor includes a linear motor mover structure, which is the linear motor mover structure described above.

[0067] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0068] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A linear motor actuator structure, characterized in that, The device includes a moving core (11) and a moving winding (13). The moving core (11) includes core teeth (111), a core yoke (112), and a magnetic field generating device (12). The moving winding (13) is wound on the core teeth (111). The magnetic field generating device (12) is located at the top and / or bottom of the core teeth (111). The length direction of the magnetic field generating device (12) is consistent with the stacking direction of the moving core (11). The magnetization direction of the magnetic field generating device (12) is consistent with the direction of the magnetic field generated by the moving winding (13) after it is energized. The magnetic field generating device (12) is a permanent magnet or an auxiliary coil. And / or, the moving winding (13) is a self-adhesive winding. The moving winding (13) includes a moving coil (131) and insulating slot paper (132). The insulating slot paper (132) is located between the moving winding (13) and the core. The core teeth (111) are arranged between each other, and an insulating gap is formed between the moving winding (13) and the core teeth (111); a limiting structure is provided on the moving core (11), and the limiting structure forms a limiting fit with the moving winding (13) to limit the moving winding (13) on the moving core (11); the limiting structure includes a fixing clip (14) and an mounting strip (15), a second slot (114) is opened on the side of the core yoke (112) away from the core teeth (111), the mounting strip (15) is installed in the second slot (114), and threaded holes (151) are respectively provided at both ends of the mounting strip (15). The fixing clip (14) includes a clip tooth (141) and a stop (142), the stop (142) is pressed on the outside of the moving winding (13), and the clip tooth (141) is screwed and fixed to the mounting strip (15).

2. The linear motor mover structure according to claim 1, characterized in that, A first slot (113) is provided on the top surface of the iron core tooth (111) away from the iron core yoke (112), and the magnetic field generating device (12) is embedded in the first slot (113); or, the magnetic field generating device (12) is pasted and fixed on the top surface of the iron core tooth (111) away from the iron core yoke (112).

3. The linear motor mover structure according to claim 1, characterized in that, The iron core yoke (112) has a receiving groove (115) on the side near the iron core tooth (111), at least a portion of the receiving groove (115) is provided corresponding to the iron core tooth (111), and the magnetic field generating device (12) is embedded in the receiving groove (115).

4. The linear motor mover structure according to claim 3, characterized in that, Along the arrangement direction of the core teeth (111), at least part of the receiving groove (115) is offset relative to the core teeth (111).

5. The linear motor mover structure according to claim 3, characterized in that, The width of the receiving groove (115) along the arrangement direction of the iron core teeth (111) is greater than the width of the iron core teeth (111) along its own arrangement direction.

6. The linear motor actuator structure according to claim 1, characterized in that, The moving coil (131) has an inner cavity, the iron core tooth (111) is located in the inner cavity, the length dimension of the inner cavity is greater than the length dimension of the iron core tooth (111), the width dimension of the inner cavity is greater than the width dimension of the iron core tooth (111), a gap is formed between the cavity wall of the inner cavity and the iron core tooth (111), and the insulating groove paper (132) is located in the gap.

7. The linear motor mover structure according to claim 1, characterized in that, The locking tooth (141) is made of insulating material, and the width of the locking tooth (141) is the same as the width of the iron core tooth (111). The locking tooth (141) is inserted between the end of the iron core tooth (111) and the moving winding (13).

8. The linear motor actuator structure according to claim 1, characterized in that, The moving coil (131) includes an inner winding (1311), an outer winding (1312), and a winding end (1313). The insulating slot paper (132) includes an inner sheath (1321), an outer sheath (1322), and an end sheath (1323). The inner sheath (1321) covers the inner winding (1311), the outer sheath (1322) covers the outer winding (1312), and the end sheath (1323) covers the winding end (1313).

9. The linear motor mover structure according to claim 8, characterized in that, There are two outer sheaths (1322), which are located on both sides of the inner sheath (1321). The outer sheaths (1322) and the inner sheath (1321) are connected by a bending section (1324). The width of the outer sheath (1322) is half that of the inner sheath (1321). The two outer sheaths (1322) are spliced ​​together to cover the outer ring of the winding (1312). The two opposite sides of the moving coil (131) are each covered with one insulating groove paper (132).

10. The linear motor mover structure according to claim 8, characterized in that, The insulating groove paper (132) is attached to the surface of the moving coil (131).

11. A linear motor, comprising a linear motor mover structure, characterized in that, The linear motor actuator structure is the linear motor actuator structure according to any one of claims 1 to 10.

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