Linear motor mover structure with water cooling structure

By introducing cooling water pipes into the linear motor's mover structure, the problem of insufficient heat dissipation was solved, effective temperature management was achieved, the motor's service life was extended, and the operating accuracy was improved.

CN223514687UActive Publication Date: 2025-11-04WUXI HENGDA ELECTRIC MOTORS CO LTD
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Patent Information

Application Number
CN202422997341.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-11-04
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

The heat dissipation of existing linear motors is insufficient, leading to aging of the mover winding insulation and unstable operating accuracy, which cannot meet the heat dissipation requirements in certain scenarios.

Method used

A cooling water pipe is introduced into the mover structure of the linear motor. The heat generated by the winding is exchanged through the cooling water pipe, and the heat is transferred to the external cooling tower by the flow of cooling water to reduce the winding temperature.

Benefits of technology

It effectively reduces the temperature of the mover winding, prevents insulation aging, extends the service life of the motor, and improves the stability and accuracy of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223514687U_ABST
Patent Text Reader

Abstract

The utility model relates to a linear motor mover structure with a water cooling structure, which structurally comprises a mover iron core and a cooling water pipe, a plurality of mover winding placing grooves are uniformly distributed in the mover iron core, a mover winding is correspondingly arranged in each mover winding placing groove, the front surface of the mover iron core is S-shaped and is provided with a water pipe mounting groove around each mover winding placing groove, and the cooling water pipe is arranged in the water pipe mounting groove. A cooling water pipe is arranged in the water pipe mounting groove, a water inlet and a water outlet which extend to the outer side of the rotor iron core are formed in the two ends of the cooling water pipe respectively, and the water inlet and the water outlet are externally connected with a cooling tower. The utility model has the advantages that the structural design is reasonable, the cooling water pipeline is arranged in the rotor of the linear motor, heat generated by the winding in the operation process of the motor is exchanged through the cooling water pipeline, and the heat is transferred into the cooling tower arranged outside through the flowing of cooling water in the cooling water pipeline, so that the winding temperature of the rotor is reduced, and the service life of the motor is prolonged. Insulation aging caused by high temperature can be avoided, and the service life of the motor is prolonged.
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Description

Technical Field

[0001] This utility model relates to a linear motor actuator structure, specifically a linear motor actuator structure with a water-cooling structure. Background Technology

[0002] In recent years, linear motors have been used in more and more occasions. When working, linear motors convert electrical energy into mechanical energy, and they generate heat continuously during the conversion process.

[0003] In the existing technology, the heat dissipation of linear motors is generally achieved only through their own structure, which cannot meet the heat dissipation requirements in certain scenarios. If they cannot be effectively cooled for a long time, the insulation of the mover winding will age faster due to the heat generated by the motor, affecting the service life of the motor and the stability of the linear motor's operating accuracy. Utility Model Content

[0004] This utility model proposes a linear motor mover structure with a water-cooling structure, which aims to overcome the above-mentioned shortcomings of the prior art and improve the heat dissipation effect of the linear motor.

[0005] The technical solution of this utility model is a linear motor mover structure with a water-cooling mechanism. The structure includes a mover core and cooling water pipes. The mover core has several evenly distributed slots for mover windings, with one mover winding corresponding to each slot. The front of the mover core has S-shaped slots around each mover winding slot for water pipe installation. Cooling water pipes are installed in these slots, with inlets and outlets extending to the outside of the mover core at both ends. These inlets and outlets are connected to an external cooling tower. The flow of cooling water in the cooling water pipes transfers heat to the externally installed cooling tower, thereby reducing the temperature of the mover windings.

[0006] Preferably, each of the moving coils is fixed to the outside of a winding coil fixing plate, and the winding coil fixing plate is fixedly connected to the moving core by a fixing screw assembly. The water pipe mounting groove is also covered inside the winding coil fixing plate.

[0007] Preferably, the upper part of the front side of the mover core has a main wire outlet slot, which is connected to the corresponding mover winding placement slot through each phase wire outlet slot. A motor lead plug is provided on the top of the mover core. Each mover winding is connected to one end of a corresponding lead wire, and the other end of the lead wire passes through the corresponding phase wire outlet slot and the main wire outlet slot and is connected to the motor lead plug. A wire outlet slot cover plate is fixed on the front side of the main wire outlet slot, and the wire outlet slot cover plate is fixedly connected to the mover core by a screw fixing assembly.

[0008] The advantages of this utility model are: reasonable structural design, cooling water pipes are installed in the mover of the linear motor, and the heat generated by the windings during motor operation is exchanged through the cooling water pipes. The heat is transferred to the external cooling tower through the flow of cooling water in the cooling water pipes, thereby reducing the winding temperature of the mover, avoiding insulation aging caused by high temperature, and extending the service life of the motor. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the linear motor actuator structure with water cooling of this utility model.

[0010] Figure 2 yes Figure 1 Side view.

[0011] In the diagram, 1 is the cooling water pipe, 11 is the water inlet, 12 is the water outlet, 13 is the water pipe mounting slot, 2 is the motor lead plug, 3 is the mover winding, 31 is the mover winding placement slot, 4 is the mover core, 5 is the cable outlet slot cover, 51 is the main cable outlet slot, 52 is the cable outlet slot for each phase, 6 is the screw fixing assembly, 7 is the fixing screw assembly, and 8 is the winding coil fixing plate. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0013] like Figure 1 , 2 As shown, a linear motor rotor structure with a water-cooled configuration includes a rotor core 4 and a cooling water pipe 1. The rotor core 4 has several rotor winding placement slots 31 evenly distributed within it, and each rotor winding 3 is correspondingly placed in each slot 31. A winding coil fixing plate 8 is fixed to the outside of each rotor winding 3, and the winding coil fixing plate 8 is fixedly connected to the rotor core 4 via a fixing screw assembly 7. A main wire outlet slot 51 is opened on the upper front of the rotor core 4, and the main wire outlet slot 51 communicates with the corresponding rotor winding placement slot 31 through each phase wire outlet slot 52. A motor lead plug 2 is provided on the top of the rotor core 4, and each rotor winding 3 is connected to... One end of the lead wire is connected to the corresponding lead wire, and the other end of the lead wire passes through the corresponding phase lead wire slot 52 and the main lead wire slot 51 and is connected to the motor lead wire plug 2. The main lead wire slot 51 is fixed with a lead wire slot cover plate 5. The lead wire slot cover plate 5 is fixedly connected to the mover core 4 by a screw fixing assembly 6. The front of the mover core 4 is S-shaped and has a water pipe installation slot 13 around the mover winding placement slot 31. A cooling water pipe 1 is provided in the water pipe installation slot 13. The two ends of the cooling water pipe 1 are respectively provided with an inlet 11 and an outlet 12 extending to the outside of the mover core 4. The inlet 11 and the outlet 12 are connected to a cooling tower. The water pipe installation slot 13 is also covered inside the winding coil fixing plate 8.

[0014] Based on the above structure, during processing, the water pipe mounting groove 13 is processed on the motor mover core 4 by a machining center. The water pipe mounting groove 13 is arranged in a structure that surrounds the mover winding placement groove 31. At the same time, the motor lead wire passing groove (each phase output groove 52, total output groove 51) is processed. After processing, the cooling water pipe 1 is arranged. The heat generated by the mover is carried away by liquid cooling, reducing the temperature rise of the mover winding.

[0015] During installation:

[0016] (1) First, install the moving winding 3 into the moving winding placement slot 31 on the moving iron core 4 of the motor, do a good job of insulation treatment, and ensure that the insulation withstand voltage of the winding passes the test. At the same time, the lead wire of the moving winding 3 passes through the output slot 5 of each phase and the total output slot 51, and at the same time install the motor lead plug 2.

[0017] (2) Install cooling water pipe 1. Do not install water pipe joints at both ends of cooling water pipe 1. First, arrange one end of cooling water pipe 1 along water pipe installation groove 13. After the water pipe is arranged, install the inlet and outlet water pipe joints (inlet 11 and outlet 12).

[0018] (3) Install the winding coil fixing plate 8. Use the flat-head internal hexagon fixing screw assembly 7 to install the winding coil fixing plate 8 into place.

[0019] (4) Install the cable tray cover 5 and fix the component 6 with screws; complete the installation of the motor mover and conduct a water flow test to ensure that the cooling water pipe is unobstructed.

[0020] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A linear motor actuator structure with a water-cooling mechanism, characterized in that, The device includes a moving core (4) and a cooling water pipe (1). The moving core (4) has several moving winding placement slots (31) evenly distributed inside. Each moving winding placement slot (31) has a corresponding moving winding (3). The front of the moving core (4) is S-shaped and has a water pipe installation slot (13) around each moving winding placement slot (31). The water pipe installation slot (13) has a cooling water pipe (1). The cooling water pipe (1) has an inlet (11) and an outlet (12) extending to the outside of the moving core (4) at both ends. The inlet (11) and outlet (12) are connected to a cooling tower.

2. The linear motor actuator structure with water cooling as described in claim 1, characterized in that, Each of the aforementioned moving coils (3) is fixed with a winding coil fixing plate (8) on the outside. The winding coil fixing plate (8) is fixedly connected to the moving core (4) by a fixing screw assembly (7). The water pipe mounting groove (13) is also covered inside the winding coil fixing plate (8).

3. The linear motor actuator structure with water cooling as described in claim 1, characterized in that, The moving core (4) has a main wire outlet slot (51) on the upper front side. The main wire outlet slot (51) is connected to the corresponding moving winding placement slot (31) through the phase wire outlet slot (52). The moving core (4) is provided with a motor lead plug (2) on the top. Each moving winding (3) is connected to one end of the corresponding lead wire. The other end of the lead wire passes through the corresponding phase wire outlet slot (52) and the main wire outlet slot (51) and is connected to the motor lead plug (2). The main wire outlet slot (51) is fixed with a wire outlet slot cover plate (5) on the front side. The wire outlet slot cover plate (5) is fixedly connected to the moving core (4) through a screw fixing assembly (6).