Water cooling device of linear motor

Abstract

The utility model discloses a water cooling device of a linear motor, comprising a stator and a stator coil arranged at one end of the stator, the stator coil is provided with a heat dissipation mechanism, the heat dissipation mechanism comprises a heat conduction main pipe arranged at the periphery of the stator, and one end of the stator far away from the stator coil is uniformly provided with heat dissipation grooves. The heat conduction main pipe is in a U shape, one end of the heat conduction main pipe is located on the inner side of one heat dissipation groove at the end, the two sides of the heat conduction main pipe are located at the positions, corresponding to the stator coil, of the side edge of the stator, a liquid outlet is formed in one end of the heat conduction main pipe, a liquid inlet is formed in the other end of the heat conduction main pipe, and middle heat conduction pipes are arranged in the heat dissipation grooves. According to the water cooling device of the linear motor, the arranged heat dissipation mechanism is composed of the heat conduction main pipe, the heat dissipation grooves, the middle heat conduction pipe and the heat dissipation shell, the water cooling device is closer to a stator coil, effective heat dissipation around a stator can be achieved, the structure is simple, cost is low, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor heat dissipation technical field, especially a linear motor's water cooling device. BACKGROUND

[0002] The heat dissipation mode of the traditional electromagnetic motor mainly depends on the heat conduction performance of the motor assembly, and the heat is taken away through the conduction mode. However, for the consideration of safety and operation, the motor assembly usually needs to have high resistance, and high resistance is often accompanied by high thermal resistance, which undoubtedly limits the traditional heat dissipation strategy.

[0003] For the linear motor, the original cooling method is realized by installing a cooling device on the stator. The stator has a magnetic laminated core, and the cooling device is composed of a corrugated metal hose for flowing cooling medium along the longitudinal direction of the stator. The corrugated metal hose mainly forms a serpentine flow path in the laminated core hole. However, this original cooling arrangement has several drawbacks. First, it is not a modular design, which means that for a motor of a specific length, a specific cooling device needs to be designed and produced. This is not only a long and time-consuming process, but also costly, because each motor of a different length needs a specific corrugated hose shape to match it. Secondly, due to the significant length of the cooling device and multiple rotations, the cooling medium may have a significant pressure drop during the flow process, affecting the cooling effect. In addition, this cooling device may also have a negative impact on the performance of the motor, because the conductive cooling hose is inserted into the stator slot where there is a strong magnetic field, which may interfere with the normal operation of the motor.

[0004] Therefore, it is necessary to provide a water cooling device for a linear motor to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the utility model is to provide a water cooling device for a linear motor, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0007] The utility model provides a water cooling device of linear motor, including stator and the stator coil of setting in stator one end, be provided with heat dissipation mechanism on the stator coil, the heat dissipation mechanism includes the heat conduction main pipe of setting in the stator periphery, the stator is away from the stator coil one end and is uniformly provided with the heat dissipation groove, the heat conduction main pipe is'U' shape, and one end of heat conduction main pipe is located in the heat dissipation groove of one of the most end, and the both sides of heat conduction main pipe are located in the corresponding place of stator side and stator coil, one end of heat conduction main pipe is provided with liquid outlet, and the other end is provided with liquid inlet, the heat dissipation groove is provided with the intermediate heat conduction pipe, and the both ends of intermediate heat conduction pipe are communicated with the both sides of heat conduction main pipe, the outside of stator is provided with the heat dissipation shell, and liquid outlet and liquid inlet all extend to the outside of heat dissipation shell.

[0008] Preferably, the both sides of the heat conduction main pipe are provided with pipe joints, and the end of the intermediate heat conduction pipe is communicated with the heat conduction main pipe through the pipe joints.

[0009] Preferably, the side of the stator is provided with a heat dissipation rod corresponding to the stator coil and in'U' shape, and the upper end of the heat dissipation rod is arranged in parallel with the heat conduction main pipe.

[0010] Preferably, the side of the stator is provided with a supporting plate for supporting the both sides of the heat conduction main pipe and the upper end of the heat dissipation rod, and the supporting plate is provided with a pair of arc-shaped grooves arranged in parallel, and the side of the heat conduction main pipe and the upper end of the heat dissipation rod are located in the arc-shaped grooves.

[0011] The side wall of the stator is fixedly provided with a second fixing block spaced apart from the stator coil, and the both ends of the second fixing block outside are symmetrically provided with arc-shaped grooves, and the end of the heat dissipation rod is located inside the arc-shaped grooves.

[0012] Preferably, the side wall of the heat dissipation shell is connected with the second fixing block through bolts.

[0013] The top of the stator is provided with a mounting groove spaced apart from the heat dissipation groove, and the longitudinal section of the mounting groove is in'T' shape, the first fixing block is fixedly arranged inside the mounting groove, one side of the heat dissipation shell is provided with a first cover plate, and the other side is provided with a second cover plate, and the first cover plate is fixed with the first fixing block through bolts.

[0014] Preferably, the four corners of the first cover plate are provided with first through holes, the four corners of the heat dissipation shell are provided with second through holes, the four corners of the second cover plate are provided with threaded grooves, the first through holes are inserted with screw rods, and the lower ends of the screw rods pass through the second through holes and are screw-connected with the threaded grooves.

[0015] Preferably, the bottom of the second cover plate is provided with a first groove in communication with the threaded groove, the lower end of the first groove is threadedly connected with a stud, the top of the stud is provided with a second groove, the inner side upper end of the second groove is movably connected with an abutting block corresponding to the threaded groove, and a spring is arranged between the abutting block and the inner wall of the second groove.

[0016] Compared with the prior art, the water cooling device of the linear motor has the following beneficial effects:

[0017] The water cooling device of the linear motor is composed of the heat conduction main pipe, the heat dissipation groove, the intermediate heat conduction pipe and the heat dissipation shell, is closer to the stator coil, can effectively dissipate heat around the stator, has simple structure, low cost and convenient use, can cause insignificant pressure drop, has low leakage risk, the heat dissipation rod can further increase the heat dissipation effect, and can transfer heat to the heat conduction main pipe.

[0018] The water cooling device of the linear motor is composed of the heat conduction main pipe, the heat dissipation groove, the intermediate heat conduction pipe and the heat dissipation shell, is closer to the stator coil, can effectively dissipate heat around the stator, has simple structure, low cost and convenient use, can cause insignificant pressure drop, has low leakage risk, the heat dissipation rod can further increase the heat dissipation effect, and can transfer heat to the heat conduction main pipe.

[0019] The water cooling device of the linear motor is composed of the heat conduction main pipe, the heat dissipation groove, the intermediate heat conduction pipe and the heat dissipation shell, is closer to the stator coil, can effectively dissipate heat around the stator, has simple structure, low cost and convenient use, can cause insignificant pressure drop, has low leakage risk, the heat dissipation rod can further increase the heat dissipation effect, and can transfer heat to the heat conduction main pipe. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is a structural schematic view of the utility model from another perspective;

[0022] Figure 3 is a structural schematic view of the utility model in a disassembled state;

[0023] Figure 4 is a structural schematic view of the heat dissipation mechanism and the stator in a disassembled state;

[0024] Figure 5 is a sectional view of one corner of the second cover plate.

[0025] In the figure: 1, heat dissipation shell; 2, first cover plate; 3, second cover plate; 4, liquid outlet; 5, liquid inlet; 6, stator; 7, stator coil; 8, heat conduction main pipe; 9, first fixing block; 10, intermediate heat conduction pipe; 11, pipe joint; 12, mounting groove; 13, heat dissipation groove; 14, second fixing block; 15, heat dissipation rod; 16, supporting plate; 17, threaded groove; 18, first recess; 19, stud; 20, abutting block; 21, second recess; 22, spring; 23, screw rod; 24, first through hole; 25, second through hole. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0027] As Figures 1-5 shown, a water cooling device of a linear motor, comprising a stator 6 and a stator coil 7 arranged at one end of the stator 6, a heat dissipation mechanism is arranged on the stator coil 7, the heat dissipation mechanism comprises a heat conduction main pipe 8 arranged on the periphery of the stator 6, the end of the stator 6 away from the stator coil 7 is uniformly provided with a heat dissipation groove 13, the heat conduction main pipe 8 is in the shape of "U", one end of the heat conduction main pipe 8 is located inside the heat dissipation groove 13 at one end, the two sides of the heat conduction main pipe 8 are located at the corresponding positions of the side of the stator 6 and the stator coil 7, one end of the heat conduction main pipe 8 is provided with a liquid outlet 4, the other end is provided with a liquid inlet 5, an intermediate heat conduction pipe 10 is arranged in the heat dissipation groove 13, and the two ends of the intermediate heat conduction pipe 10 are in communication with the two sides of the heat conduction main pipe 8, specifically, pipe joints 11 are arranged on the two sides of the heat conduction main pipe 8, the end of the intermediate heat conduction pipe 10 is in communication with the heat conduction main pipe 8 through the pipe joints 11, the outside of the stator 6 is provided with a heat dissipation shell 1, and the liquid outlet 4 and the liquid inlet 5 extend to the outside of the heat dissipation shell 1, the side of the stator 6 is provided with a heat dissipation rod 15 corresponding to the stator coil 7 and in the shape of "U", and the upper end of the heat dissipation rod 15 is arranged in parallel with the heat conduction main pipe 8.

[0028] Further, the side of the stator 6 is provided with a supporting plate 16 for supporting both sides of the heat-conducting main pipe 8 and the upper end of the heat-dissipating rod 15, and the supporting plate 16 is provided with a pair of parallel arranged arc-shaped grooves, the side of the heat-conducting main pipe 8 and the upper end of the heat-dissipating rod 15 are located in the arc-shaped grooves, the side wall of the stator 6 is fixedly provided with a second fixing block 14 which is arranged in a spaced manner with the stator coil 7, and the two ends of the outer side of the second fixing block 14 are symmetrically provided with arc-shaped grooves, the end of the heat-dissipating rod 15 is located in the inner side of the arc-shaped grooves, the side wall of the heat-dissipating shell 1 is connected with the second fixing block 14 through bolts, the top of the stator 6 is provided with a mounting groove 12 which is arranged in a spaced manner with the heat-dissipating groove 13, and the longitudinal section of the mounting groove 12 is "T" shaped, the inner side of the mounting groove 12 is fixedly provided with a first fixing block 9, one side of the heat-dissipating shell 1 is provided with a first cover plate 2, and the other side is provided with a second cover plate 3, and the first cover plate 2 is fixed with the first fixing block 9 through bolts.

[0029] In addition, the four corners of the first cover plate 2 are provided with first through holes 24, the four corners of the heat-dissipating shell 1 are provided with second through holes 25, and the four corners of the second cover plate 3 are provided with threaded grooves 17, the first through holes 24 are inserted with threaded rods 23, and the lower end of the threaded rods 23 passes through the second through holes 25 and is threadedly connected with the threaded grooves 17.

[0030] Further, the bottom of the second cover plate 3 is provided with a first recess 18 which is in communication with the threaded groove 17, the lower end of the first recess 18 is threadedly connected with a threaded stud 19, the top of the threaded stud 19 is provided with a second recess 21, the inner side of the second recess 21 is movably connected with an abutting block 20 which corresponds to the threaded groove 17, and the abutting block 20 and the inner wall of the second recess 21 are provided with a spring 22.

[0031] In use, the outlet 4 and the inlet 5 are connected with a water pump and cooling liquid, the water pump sends the cooling liquid into the heat-conducting main pipe 8 and the intermediate heat-conducting pipe 10 through the inlet 5, the heat-conducting main pipe 8 and the intermediate heat-conducting pipe 10 can take away the heat around the stator 6, and then the cooling liquid returns to the outside again, at the same time, the heat-dissipating shell 1 can dissipate the heat of the heat-conducting main pipe 8 and the intermediate heat-conducting pipe 10, in addition, in order to further increase the heat dissipation effect of the stator coil 7, the heat-dissipating rod 15 is arranged around the stator coil 7, which can more effectively take away the heat of the stator coil 7 and then transfer it to the heat-conducting main pipe 8;

[0032] In addition, when the device is installed, the stator 6 is installed inside the heat-dissipating shell 1, at the same time, the heat-dissipating shell 1 is fixed with the second fixing block 14 on the side of the stator 6 through bolts, then the first cover plate 2 and the second cover plate 3 are fixed, the threaded rod 23 is inserted into the second through hole 25 through the first through hole 24, so that the lower end of the threaded rod 23 enters the threaded groove 17, then it is tightened, and then the first cover plate 2 is locked and fixed with the first fixing block 9 on the stator 6 through bolts;

[0033] When the lower end of the screw rod 23 is screwed into the threaded groove 17, the screw rod 23 will enter the first groove 18 and abut against the abutment block 20, the abutment block 20 will compress the spring 22, and then the spring 22 generates a reverse force acting on the screw rod 23, which increases the pressure between the threads, thereby reducing the possibility of loosening.

[0034] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A water cooling device for a linear motor, comprising a stator (6) and a stator coil (7) arranged at one end of the stator (6), characterized in that: The stator coil (7) is provided with a heat dissipation mechanism, the heat dissipation mechanism comprises a heat conduction main pipe (8) arranged on the periphery of the stator (6), and the stator (6) is uniformly provided with heat dissipation grooves (13) at the end away from the stator coil (7); the heat conduction main pipe (8) is in a "U" shape, one end of the heat conduction main pipe (8) is located inside the heat dissipation groove (13) at one end, the two sides of the heat conduction main pipe (8) are located at the corresponding positions of the side of the stator (6) and the stator coil (7), one end of the heat conduction main pipe (8) is provided with a liquid outlet (4), the other end is provided with a liquid inlet (5), the heat dissipation groove (13) is provided with an intermediate heat conduction pipe (10), and the two ends of the intermediate heat conduction pipe (10) are in communication with the two sides of the heat conduction main pipe (8), and the outer side of the stator (6) is provided with a heat dissipation shell (1), and the liquid outlet (4) and the liquid inlet (5) extend to the outside of the heat dissipation shell (1).

2. A water cooling device for linear motor according to claim 1, characterized in that: The two sides of the heat conduction main pipe (8) are provided with pipe joints (11), and the ends of the intermediate heat conduction pipe (10) are in communication with the heat conduction main pipe (8) through the pipe joints (11).

3. The water cooling device of a linear motor according to claim 1, characterized in that: The side of the stator (6) is provided with a heat dissipation rod (15) corresponding to the stator coil (7) and in a "U" shape, and the upper end of the heat dissipation rod (15) is arranged in parallel with the heat conduction main pipe (8).

4. A water cooling device for linear motor according to claim 3, characterized in that: The side of the stator (6) is provided with a supporting plate (16) for supporting the two sides of the heat conduction main pipe (8) and the upper end of the heat dissipation rod (15), and the supporting plate (16) is provided with a pair of arc-shaped grooves arranged in parallel, and the side of the heat conduction main pipe (8) and the upper end of the heat dissipation rod (15) are located in the arc-shaped grooves; The side wall of the stator (6) is fixedly provided with a second fixed block (14) arranged in parallel with the stator coil (7), and the two ends of the outer side of the second fixed block (14) are symmetrically provided with arc-shaped grooves, and the end of the heat dissipation rod (15) is located inside the arc-shaped grooves.

5. A water cooling device for a linear motor according to claim 4, characterized in that: The side wall of the heat dissipation shell (1) is connected with the second fixed block (14) through bolts; The top of the stator (6) is provided with a mounting groove (12) arranged in parallel with the heat dissipation groove (13), and the longitudinal section of the mounting groove (12) is in a "T" shape, the inner side of the mounting groove (12) is fixedly provided with a first fixed block (9), one side of the heat dissipation shell (1) is provided with a first cover plate (2), and the other side is provided with a second cover plate (3), and the first cover plate (2) is fixed with the first fixed block (9) through bolts.

6. A water cooling device for a linear motor according to claim 5, characterized in that: The four corners of the first cover plate (2) are provided with first through holes (24), the four corners of the heat dissipation shell (1) are provided with second through holes (25), the four corners of the second cover plate (3) are provided with threaded grooves (17), the first through holes (24) are inserted with screw rods (23), and the lower ends of the screw rods (23) pass through the second through holes (25) and are in threaded connection with the threaded grooves (17).

7. A water cooling device for linear motor according to claim 6, characterized in that: The bottom of the second cover plate (3) is provided with a first recess (18) communicated with the threaded groove (17), the lower end of the first recess (18) is threadedly connected with a stud (19), the top of the stud (19) is provided with a second recess (21), the inner side upper end of the second recess (21) is movably connected with an abutting block (20) corresponding to the threaded groove (17), and the abutting block (20) and the inner wall of the second recess (21) are provided with a spring (22).

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