Linear motor mover structure and linear motor

Abstract

The application provides a linear motor moving structure and a linear motor. The linear motor moving structure comprises a moving core (1), a framework (2) and a cooling structure, the cooling structure is arranged on the moving core (1) and can cool the moving core (1), the moving core (1) comprises core teeth (3), the framework (2) is sleeved on the core teeth (3), and the framework (2) is fixedly installed on the moving core (1) in cooperation with the cooling structure. According to the linear motor moving structure, the structural stability of motor winding can be enhanced, and the production and assembly efficiency of the linear motor can be improved.

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 high acceleration. The fixing of the motor windings and the motor's cooling are crucial influencing factors. Misalignment or protrusion of the windings can cause a rapid rise in temperature in certain areas of the motor. When the motor temperature exceeds the temperature resistance limit of the motor materials, damage can occur on the winding surface, easily leading to a decrease in the inter-turn insulation strength. Under excessively high voltage, this can puncture the insulating varnish, causing inter-turn short circuits, and in severe cases, motor failure.

[0003] The fixing of the linear motor windings also determines the subsequent assembly, transportation and injection molding process of the motor. Relying solely on winding fixing during the subsequent assembly and transportation of the motor may lead to winding detachment and damage, affecting the motor production efficiency and production cost. During the injection molding process, the movement of the windings will cause unevenness on the surface of the injection molded motor, affecting the air gap surface of the motor, and in severe cases, making it impossible to assemble the motor. 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 enhance the structural stability of the motor windings and improve the production and assembly efficiency 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, including a mover core, a frame, and a cooling structure. The cooling structure is disposed on the mover core and is capable of cooling the mover core. The mover core includes core teeth, and the frame is sleeved on the core teeth. The frame and the cooling structure are fitted together and fixedly installed on the mover core.

[0006] Furthermore, the cooling structure is fixedly connected to the moving core, the frame cooperates with the cooling structure, and the cooling structure restricts the frame from moving in the direction away from the core teeth.

[0007] Furthermore, the moving core includes a base, core teeth are disposed on the base, and a cooling structure is disposed on the base. In the width direction of the moving core, connecting members extending toward the side where the base is located are respectively disposed on both sides of the frame, and the frame is positioned and engaged with the cooling structure through the connecting members.

[0008] Furthermore, the connector is provided with positioning holes, and the cooling structure passes through the positioning holes and is fixedly connected to the base.

[0009] Furthermore, the connector is a connecting ear plate, and the cooling structure includes a cooling pipe that passes through the positioning hole of the connecting ear plate and limits the position of the connecting ear plate through the positioning hole.

[0010] Furthermore, the base is provided with cooling holes that penetrate the base along the width direction of the base. The cooling pipe includes a U-shaped pipe, which is connected between two adjacent cooling holes and connected in series with the cooling holes on the base to form a cooling flow channel. The U-shaped pipe is inserted into the positioning hole.

[0011] Furthermore, the base is provided with cooling holes that penetrate the base along the width direction of the base. The cooling pipes include straight pipes and U-shaped pipes. The straight pipes are inserted into the cooling holes, and the U-shaped pipes are connected between two adjacent straight pipes. The U-shaped pipes and straight pipes are connected in series to form a cooling flow channel. The U-shaped pipes or straight pipes are inserted into the positioning holes.

[0012] Furthermore, the length of the straight tube is greater than the width of the base, both ends of the straight tube extend out of the cooling holes, and the part of the straight tube extending out of the cooling holes passes through the positioning holes. The U-shaped tube is connected to the part of the straight tube that passes through the positioning holes; or, the length of the straight tube is less than or equal to the width of the base, the U-shaped tube passes through the positioning holes, and is fixedly connected to the straight tube.

[0013] Furthermore, the cooling pipe also includes an L-shaped pipe, which is connected to the end of the cooling channel.

[0014] According to another aspect of the present invention, a linear motor is provided, comprising a linear motor mover structure and a linear motor stator structure, wherein the linear motor mover structure is the linear motor mover structure described above, and the linear motor mover structure is disposed on the linear motor stator structure.

[0015] The linear motor mover structure, applying the technical solution of this invention, includes a mover core, a frame, and a cooling structure. The cooling structure is disposed on the mover core and can cool the mover core. The mover core includes core teeth, and the frame is sleeved on the core teeth. The frame and the cooling structure are fitted together and fixedly installed on the mover core. This linear motor mover structure changes the fixing structure of the frame, allowing the frame to cooperate with the cooling structure. The mounting structure of the cooling structure on the mover core forms a mounting position for the frame, preventing the frame from moving on the mover core. Due to the limiting effect of the cooling structure, it can cooperate with the core teeth to form an all-round limiting of the frame, effectively preventing the frame from shifting relative to the core teeth. This allows the winding to be stably fixed on the core teeth by the frame, preventing the winding from shifting. This effectively solves the problems caused by winding movement during subsequent handling and injection molding, effectively reducing production rework and improving production efficiency. Attached Figure Description

[0016] 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:

[0017] Figure 1 A three-dimensional structural schematic diagram of the linear motor actuator structure according to an embodiment of the present invention is shown;

[0018] Figure 2 A schematic diagram of the split structure of the linear motor actuator structure according to an embodiment of the present invention is shown;

[0019] Figure 3 A three-dimensional structural schematic diagram of the mover core of a linear motor mover structure according to an embodiment of the present invention is shown;

[0020] Figure 4 A three-dimensional structural schematic diagram of the cooling pipe of the linear motor actuator structure according to an embodiment of the present invention is shown;

[0021] Figure 5 A schematic diagram of the straight pipe structure of the cooling pipe of the linear motor actuator structure according to an embodiment of the present invention is shown;

[0022] Figure 6 A schematic diagram of the U-shaped tube structure of the cooling tube of the linear motor actuator structure according to an embodiment of the present invention is shown;

[0023] Figure 7 A schematic diagram of the L-shaped tube structure of the cooling tube of the linear motor actuator structure according to an embodiment of the present invention is shown;

[0024] Figure 8 A three-dimensional structural schematic diagram of the skeleton of the linear motor mover structure according to an embodiment of the present invention is shown;

[0025] Figure 9 A schematic diagram of the skeleton of the linear motor mover structure according to an embodiment of the present invention is shown;

[0026] Figure 10 It shows Figure 9 A schematic diagram of the AA-direction cross-section; and

[0027] Figure 11 A three-dimensional structural schematic diagram of a linear motor according to an embodiment of the present invention is shown.

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

[0029] 1. Mover core; 2. Frame; 3. Core teeth; 4. Base; 5. Connector; 6. Positioning hole; 7. Straight tube; 8. U-shaped tube; 9. L-shaped tube; 10. Cooling hole; 11. Linear motor stator structure; 12. Winding; 13. Linear motor mover structure. 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 11 As shown, according to an embodiment of the present invention, the linear motor mover structure includes a mover core 1, a frame 2, and a cooling structure. The cooling structure is disposed on the mover core 1 and can cool the mover core 1. The mover core 1 includes core teeth 3, and the frame 2 is sleeved on the core teeth 3. The frame 2 and the cooling structure are fixedly installed on the mover core 1 in cooperation.

[0032] The linear motor mover structure alters the fixing structure of the frame 2, allowing the frame 2 to cooperate with the cooling structure. The cooling structure's mounting structure on the mover core 1 provides mounting and positioning for the frame 2, preventing movement of the frame 2 on the mover core 1. Due to the limiting effect of the cooling structure, it can cooperate with the core teeth 3 to provide omnidirectional positioning for the frame 2, effectively preventing displacement of the frame 2 relative to the core teeth 3. This allows the winding to be stably fixed on the core teeth 3 via the frame 2, preventing winding displacement. This effectively solves the problems caused by winding movement during subsequent handling and injection molding, effectively reducing production rework and improving production efficiency.

[0033] In this embodiment, when the frame 2 and the cooling structure are connected together to form a fit, and the frame 2 is fixed on the moving core 1 by the cooling structure, the frame 2 can be fixed in place by the cooling structure during the subsequent assembly and transportation of the motor. This effectively solves the problems caused by the winding during subsequent handling and injection molding, and improves production efficiency. During the injection molding process, since the winding 12 is fixedly wound on the frame 2, the baffles on both sides of the frame 2 can be used to fix and limit the winding 12. Therefore, when the frame 2 is fixed on the moving core 1 by the cooling structure, it can effectively prevent the winding 12 from moving relative to the moving core 1. This effectively avoids the problem that the movement of the winding 12 during the injection molding process will cause unevenness on the surface of the injection molded motor, affect the air gap surface of the motor, and in severe cases, make the motor impossible to assemble.

[0034] In one embodiment, the cooling structure is fixedly connected to the moving core 1, the frame 2 cooperates with the cooling structure, and the cooling structure restricts the movement of the frame 2 in the direction of disengaging from the core teeth 3.

[0035] In this embodiment, the cooling structure is fixedly connected to the moving core 1. The position of the cooling structure can be fixed by the moving core 1. The displacement direction of the frame 2 is restricted by the cooling structure, so that the frame 2 cannot move in the direction of detaching from the core teeth 3. At the same time, the frame 2 is sleeved on the core teeth 3, and the core teeth 3 can form multiple directional limits. In combination with the limiting direction of the cooling structure on the frame 2, it can be ensured that the frame 2 is stably held on the core teeth 3 and will not displace in any direction relative to the core teeth 3. This makes the installation position of the frame 2 relative to the core teeth 3 stable, and thus the winding 12 installed on the frame 2 will not displace relative to the core teeth 3. It has strong structural stability, which can reduce the occurrence of problems in the motor production process and improve the production efficiency of the motor.

[0036] In one embodiment, the moving core 1 includes a base 4, core teeth 3 are disposed on the base 4, and a cooling structure is disposed on the base 4. In the width direction of the moving core 1, the two sides of the frame 2 are respectively provided with connecting members 5 extending toward the side where the base 4 is located, and the frame 2 is positioned and engaged with the cooling structure through the connecting members 5.

[0037] In this embodiment, a connector 5 extending toward the base 4 is added to the frame 2. The connector 5 can be positioned and engaged with the cooling structure. The positioning and engagement between the cooling structure and the connector 5 can achieve the positioning and engagement between the cooling structure and the frame 2, thus stably confining the frame 2 on the iron core teeth 3.

[0038] Since connector 5 is a new structure added to the frame 2 and does not conflict with the original structure of the frame 2, it can be designed according to the characteristics of the cooling structure, thus facilitating the positioning and fit between connector 5 and the cooling structure. Connector 5 can be designed independently of the original structure of the frame 2, making its structural design more flexible, enabling a better fit with the cooling structure, and improving the stability of the limiting fit structure.

[0039] The connection between connector 5 and the cooling structure can be a snap-fit, a hook, or a screw connection.

[0040] In one embodiment, the connector 5 is provided with a positioning hole 6, the cooling structure passes through the positioning hole 6 and is fixedly connected to the base 4.

[0041] In this embodiment, by providing a positioning hole 6 on the connector 5, the cooling structure can be inserted through the positioning hole 6. Since the frame 2 is set on the iron core teeth 3, it can only move in the vertical direction along the iron core teeth 3 under the limiting action of the iron core teeth 3. Since the cooling structure is inserted through the positioning hole 6, the connection 5 can be limited by the cooperation between the cooling structure and the positioning hole 6, thus restricting the movement of the frame 2 in the vertical direction along the iron core teeth 3. This creates a good limiting effect on the frame 2, preventing the frame 2 from shifting relative to the moving iron core 1 after the cooling structure is installed, ensuring the production efficiency of the motor in the subsequent process, and reducing production costs.

[0042] In one embodiment, the connector 5 is a connecting lug, and the cooling structure includes a cooling pipe that passes through the positioning hole 6 of the connecting lug and limits the position of the connecting lug through the positioning hole 6.

[0043] In this embodiment, the cooling structure adopts a tubular structure, which not only facilitates the cooperation with the base 4, but also facilitates the cooperation with the positioning hole 6 on the connecting ear plate. The structure of the positioning hole 6 is also designed as a round hole that is compatible with the tubular structure, which can also reduce the processing difficulty of the positioning hole 6.

[0044] In one embodiment, the distance between the inner walls of the two connecting lugs is consistent with the dimension of the core tooth 3 in the width direction of the moving core 1 and the width dimension of the moving core 1, so that after the frame 2 is installed on the core tooth 3, the two connecting lugs on the frame 2 can be located on both sides of the width direction of the base 4 and fit against the side wall of the base 4 to form a good positioning fit relationship.

[0045] In this embodiment, the inner wall of the connecting ear plate is flush with the inner wall of the frame 2 on the same side. This facilitates the processing of the connecting ear plate and makes the installation of the frame 2 on the iron core tooth 3 smoother.

[0046] In one embodiment, the positioning hole 6 is a round hole, and a portion of the cooling pipe is completely located inside the positioning hole 6, forming a stop on the side wall of the positioning hole 6. This can then stop and limit the connecting ear plate, preventing the frame 2 from shifting relative to the moving core 1.

[0047] In one embodiment, the positioning hole 6 can also be a semi-circular hole or an arc-shaped hole. At least part of the hole wall of the semi-circular hole or the arc-shaped hole is located below the cooling pipe, so that it can be hooked on the cooling pipe and the cooling pipe can be used to stop and limit the connecting ear plate to prevent the frame 2 from displacing relative to the moving core 1.

[0048] In one embodiment, the connector 5 is a hook, and the skeleton 2 is hooked onto the cooling pipe through the connector 5, thereby using the cooling pipe to form a stop and limit on the connecting ear plate, preventing the skeleton 2 from shifting relative to the moving core 1.

[0049] In one embodiment, a cooling hole 10 is provided on the base 4, which extends through the base 4 along the width direction of the base 4. The cooling pipe includes a U-shaped pipe 8, which is connected between two adjacent cooling holes 10 and connected in series with the cooling holes 10 on the base 4 to form a cooling flow channel. The U-shaped pipe 8 is inserted into the positioning hole 6.

[0050] In this embodiment, cooling holes 10 are provided on the base 4, and U-shaped tubes 8 are connected between adjacent cooling holes. The U-shaped tubes 8 on different sides are staggered along the arrangement direction of the iron core teeth 3, so that the cooling holes 10 can be connected in series through the U-shaped tubes 8 to form a cooling channel. Since the cooling holes 10 are located inside the base 4, the cooling position of the cooling channel is closer to the winding 12, which can improve the cooling effect of the cooling structure and give the motor better working performance. When the motor is working, the winding 12 will generate heat. The cooling tubes being close to the winding 12 will have a better cooling effect and more efficient protection of the motor.

[0051] In this embodiment, the U-shaped tube 8 is directly connected to the cooling hole 10. The connection between the two can be an interference fit. In order to improve the sealing performance, a sealing gasket can be added at the connection position.

[0052] When installing the cooling pipe, the frame 2 can be installed on the iron core tooth 3 first, and the positioning hole 6 on the connector 5 of the frame 2 can be aligned with the cooling hole 10. Then, the U-shaped tube 8 can be connected to the corresponding cooling hole 10 in sequence. At this time, the U-shaped tube 8 passes through the positioning hole 6, forming a limit stop for the connector 5.

[0053] In one embodiment, a cooling hole 10 is provided on the base 4, which extends through the base 4 along the width direction of the base 4. The cooling pipe includes a straight pipe 7 and a U-shaped pipe 8. The straight pipe 7 passes through the cooling hole 10, and the U-shaped pipe 8 is connected between two adjacent straight pipes 7. The U-shaped pipe 8 and the straight pipe 7 are connected in series to form a cooling flow channel. The U-shaped pipe 8 or the straight pipe 7 passes through the positioning hole 6.

[0054] In this embodiment, a straight pipe 7 is installed inside the cooling hole 10, and multiple straight pipes 7 are connected in sequence by U-shaped pipes 8 to form a series pipe structure, thereby forming a cooling channel. In this embodiment, the coolant flows within the cooling channel formed by the straight pipes 7 and U-shaped pipes 8, which can prevent the coolant from directly contacting the base 4 and causing corrosion to the base 4, thus effectively protecting the base 4. In addition, the cooling pipes can be made of materials with high heat transfer efficiency, such as copper. Since copper has high heat transfer efficiency, it can improve the heat transfer effect, further enhance the heat exchange efficiency between the cooling pipe and the base 4, and improve the cooling effect on the winding 12.

[0055] In one embodiment, the length of the straight tube 7 is greater than the width of the base 4, and both ends of the straight tube 7 extend out of the cooling hole 10. The portion of the straight tube 7 extending out of the cooling hole 10 passes through the positioning hole 6, and the U-shaped tube 8 is connected to the portion of the straight tube 7 that passes through the positioning hole 6.

[0056] In this embodiment, since the length of the straight pipe 7 is greater than the width of the base 4, both ends of the straight pipe 7 can extend beyond the cooling holes 10, facilitating connection and fixation with the U-shaped pipe 8. Because the straight pipe 7 extends beyond the cooling pipe, the installation difficulty of the straight pipe 7 is reduced, and it also facilitates the cooperation between the straight pipe 7 and the connector 5. The portion of the straight pipe 7 extending beyond the cooling pipe can pass through the positioning holes 6 of the connector 5, thereby cooperating with the connectors 5 at both ends of the straight pipe 7 to form a stop and limit on the frame 2.

[0057] In one embodiment, the length of the straight tube 7 is less than or equal to the width of the base 4, and the U-shaped tube 8 is inserted into the positioning hole 6 and fixedly connected to the straight tube 7.

[0058] In this embodiment, since the straight pipe 7 does not extend beyond the cooling hole 10, it cannot engage with the positioning hole 6 of the connector 5. Therefore, a U-shaped pipe 8 is needed to engage with the positioning hole 6 of the connector 5 to stop and limit the connection of the connector 5. The U-shaped pipe 8 passes through the positioning hole 6, and the portion extending out of the positioning hole 6 can be inserted into the straight pipe 7, achieving a sealed connection. The U-shaped pipe 8 can be sleeved onto the straight pipe 7 and sealed using a gasket, or it can be connected and fixed using adhesive or other methods.

[0059] In one embodiment, the cooling pipe further includes an L-shaped pipe 9, which is connected to the end of the cooling channel.

[0060] In one embodiment, the cooling pipe is a copper pipe, including straight copper pipes, U-shaped copper pipes, and L-shaped copper pipes. The cooling copper pipes of the linear motor mover structure are mainly connected by sleeve welding. The copper pipes mainly function to cool the inside of the linear motor. The two copper pipe openings at both ends of the cooling copper pipe serve as the motor's water inlet and outlet. The middle section of the cooling copper pipe consists of multiple straight copper pipes located inside the base 4 of the mover core 1 of the linear motor mover structure. The multiple straight copper pipes and U-shaped copper pipes are connected end to end and welded to form a complete cooling circuit. Cooling water is introduced into the motor through the copper pipe openings of the cooling circuit and discharged through the copper pipe openings at the other ends.

[0061] The straight copper tube for cooling is a section of copper tube longer than the width of the base 4 of the linear motor's mover structure. The straight copper tube is mainly used to position the frame 2 and the windings 12 inside the frame 2. The diameters of the two ends of the U-shaped copper tube are larger than the diameter of the middle copper tube; the two ends are used for welding to the straight copper tube. The L-shaped copper tube is mainly used to connect to the external cooling structure of the motor. A copper tube connector is connected to the longer end of the L-shaped copper tube, allowing connection to an external water chiller. Cooling water is circulated during motor operation to cool the windings 12. Because the linear motor's copper tube cooling structure is a split design, the copper tubes can be assembled in many ways to adapt to different linear motor models, increasing versatility.

[0062] The cooling structure in this embodiment is composed of straight pipes and bent pipes. For different linear motor models, straight pipes and bent pipes can be combined to form different numbers of cooling copper pipes. At the same time, for motors with different widths and lengths, straight pipes and bent pipes can be changed individually, changing the way one motor corresponds to one cooling copper pipe, thus reducing the cost of copper pipe mold opening.

[0063] During the installation of the linear motor mover structure, the winding 12 of the linear motor mover structure is fixed on the frame 2 by a winding machine, and then the frame 2 is installed on the iron core teeth 3 of the linear motor mover structure. The positioning hole 6 on the connector 5 of the frame 2 coincides with the round hole on the base 4 of the mover iron core 1. The linear copper tube passes through the base 4 and the round hole on the frame 2 to weld the cooling structure of the linear motor together, forming a complete cooling channel inside the motor.

[0064] According to an embodiment of the present invention, the linear motor includes a linear motor mover structure 13 and a linear motor stator structure 11. The linear motor mover structure 13 is the linear motor mover structure described above, and the linear motor mover structure 13 is disposed on the linear motor stator structure 11.

[0065] 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.

[0066] 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.

[0067] 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 (1), a frame (2), and a cooling structure. The cooling structure is disposed on the moving core (1) and is capable of cooling the moving core (1). The moving core (1) includes core teeth (3). The frame (2) is sleeved on the core teeth (3). The frame (2) is fixedly installed on the moving core (1) in cooperation with the cooling structure. The cooling structure is fixedly connected to the moving core (1). The frame (2) cooperates with the cooling structure, and the cooling structure restricts the frame (2) from disengaging from the core teeth (3). The moving core (1) includes a base (4), the core teeth (3) are disposed on the base (4), the cooling structure is disposed on the base (4), and in the width direction of the moving core (1), the skeleton (2) is provided with connecting parts (5) extending toward the side where the base (4) is located on both sides. The skeleton (2) is positioned and engaged with the cooling structure through the connecting parts (5). The connecting parts (5) are provided with positioning holes (6), the cooling structure passes through the positioning holes (6) and is fixedly connected to the base (4).

2. The linear motor actuator structure according to claim 1, characterized in that, The connector (5) is a connecting ear plate, and the cooling structure includes a cooling pipe. The cooling pipe passes through the positioning hole (6) of the connecting ear plate and limits the connecting ear plate through the positioning hole (6).

3. The linear motor actuator structure according to claim 2, characterized in that, The base (4) is provided with cooling holes (10) that penetrate the base (4) along the width direction of the base (4). The cooling pipe includes a U-shaped pipe (8). The U-shaped pipe (8) is connected between two adjacent cooling holes (10) and is connected in series with the cooling holes (10) on the base (4) to form a cooling flow channel. The U-shaped pipe (8) is inserted into the positioning hole (6).

4. The linear motor mover structure according to claim 2, characterized in that, The base (4) is provided with a cooling hole (10) that extends through the base (4) along the width direction of the base (4). The cooling pipe includes a straight pipe (7) and a U-shaped pipe (8). The straight pipe (7) passes through the cooling hole (10). The U-shaped pipe (8) is connected between two adjacent straight pipes (7). The U-shaped pipe (8) and the straight pipe (7) are connected in series to form a cooling channel. The U-shaped pipe (8) or the straight pipe (7) passes through the positioning hole (6).

5. The linear motor mover structure according to claim 4, characterized in that, The length of the straight tube (7) is greater than the width of the base (4). Both ends of the straight tube (7) extend out of the cooling hole (10). The part of the straight tube (7) extending out of the cooling hole (10) passes through the positioning hole (6). The U-shaped tube (8) is connected to the part of the straight tube (7) that passes through the positioning hole (6); or, the length of the straight tube (7) is less than or equal to the width of the base (4). The U-shaped tube (8) passes through the positioning hole (6) and is fixedly connected to the straight tube (7).

6. The linear motor actuator structure according to any one of claims 3 to 5, characterized in that, The cooling pipe also includes an L-shaped pipe (9), which is connected to the end of the cooling channel.

7. A linear motor, comprising a linear motor mover structure (13) and a linear motor stator structure (11), wherein the linear motor mover structure (13) is the linear motor mover structure according to any one of claims 1 to 6, and the linear motor mover structure (13) is disposed on the linear motor stator structure (11).

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