Water-cooled permanent magnet motor

Abstract

The utility model relates to the technical field of permanent magnet motors, in particular to a water-cooled permanent magnet motor, which adopts the technical scheme that the water-cooled permanent magnet motor comprises a permanent magnet motor body, two water-cooled grooves are arranged on the outer side of the permanent magnet motor body, and the inner walls of the two water-cooled grooves are in contact with the outer wall of the permanent magnet motor body but are not fixedly connected with the outer wall of the permanent magnet motor body; the tops of the two water cooling tanks are both provided with holes and are communicated through a first communicating pipe, the first communicating pipe is fixedly provided with a water cooling fan, the bottoms of one sides of the two water cooling tanks are both provided with holes and are communicated through a second communicating pipe, and the second communicating pipe is fixedly provided with a circulating pump; holes are formed in the bottoms of the other sides of the two water cooling grooves and are installed in a communicating mode through a third communicating pipe, and the third communicating pipe is fixedly connected with the permanent magnet motor body through a connecting frame. The permanent magnet motor cooling device solves the problems that when a device in the prior art is used, the flowing direction of a water body is uncontrollable, and the temperature of the flowing water body is reduced slowly, so that the efficiency is low when the permanent magnet motor is cooled.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet motor technology, specifically a water-cooled permanent magnet motor. Background Technology

[0002] Permanent magnet motors, as a widely used power device, play a crucial role in various mechanical systems. Optimizing heat dissipation performance is particularly important to improve their operating efficiency and extend their service life.

[0003] Extensive searches revealed CN210157045U, which discloses a water-cooled permanent magnet synchronous motor heat dissipation device. A small water storage tank is added to the oil outlet of a conventional oil-cooled motor. One end of a cooling water pipe is connected to the water storage tank, and the other end is connected to the motor's water inlet. When the air compressor starts, compressed air enters the water storage tank, causing water to flow between the motor and the cooling water pipe, thereby achieving the purpose of removing heat from the motor.

[0004] In existing technologies, when the device is in use, an air compressor pressurizes the inside of the water storage tank, thereby directly circulating the water through high-pressure air. This is intended to carry away the high temperature generated during the operation of the permanent magnet motor through the flowing water. However, if the output air pressure is too high, it will cause water leakage in the storage tank. Furthermore, pressurization does not guarantee that the water will circulate along a predetermined flow path, and the water temperature cannot be effectively reduced. In such cases, it is difficult to ensure that the permanent magnet motor can achieve good cooling. These problems make it difficult to guarantee its cooling effect. Therefore, a water-cooled permanent magnet motor is needed to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a water-cooled permanent magnet motor, which has the advantages of improving the circulation efficiency of the coolant used for cooling and cooling the coolant, thereby improving the cooling effect of the permanent magnet motor. It solves the problem that in the prior art, the water flow direction is uncontrollable and the temperature of the flowing water itself decreases slowly, resulting in low efficiency when cooling the permanent magnet motor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water-cooled permanent magnet motor, comprising a permanent magnet motor body, two water-cooling tanks on the outer side of the permanent magnet motor body, the inner walls of the two water-cooling tanks being in contact with but not fixedly connected to the outer wall of the permanent magnet motor body, the tops of the two water-cooling tanks being opened and connected by a first connecting pipe, a water-cooling fan being fixedly installed on the first connecting pipe, the bottom of one side of the two water-cooling tanks being opened and connected by a second connecting pipe, a circulating pump being fixedly installed on the second connecting pipe, the bottom of the other side of the two water-cooling tanks being opened and connected by a third connecting pipe, the third connecting pipe being fixedly connected to the permanent magnet motor body through a connecting bracket.

[0007] Preferably, the permanent magnet motor body includes a main body, a controller fixedly mounted on the top of the main body, a front housing fixedly mounted on the front end of the main body, a rear housing fixedly mounted on the rear end of the main body, and a support frame fixedly mounted on the bottom of the main body. The design of the permanent magnet motor body, through a complete structural design including the main body, front housing, rear housing, and support frame, ensures the stability and durability of the motor. The front and rear housings not only provide protection but also help to fix the water-cooling tank, making the overall structure more compact and reliable; the controller is fixedly mounted on the top of the main body for easy operation and monitoring. This design allows the control logic to be tightly integrated with the motor body, improving the system's response speed and reliability.

[0008] Preferably, the top of the controller contacts but is not fixedly connected to the heat sink at the bottom of the water-cooled fan, and thermal silicone is applied to the connection point between the top of the controller and the water-cooled fan. This design, where the top of the controller contacts but is not fixedly connected to the heat sink at the bottom of the water-cooled fan, ensures effective heat transfer while avoiding wear and vibration problems caused by direct contact.

[0009] Thermal silicone was applied to the connection point between the top of the controller and the water-cooled fan to further improve heat conduction efficiency and ensure the stability and reliability of the controller during long-term operation.

[0010] Preferably, heat dissipation fins are welded at equal intervals to the outer wall of the main body on opposite sides of the two water-cooling tanks. The two water-cooling tanks are fixedly installed at the front and rear ends of the outer wall of the main body via the front and rear shells, respectively. The design of welding heat dissipation fins at equal intervals to the outer wall of the main body on opposite sides of the two water-cooling tanks significantly increases the heat dissipation area and improves heat dissipation efficiency. This design allows the heat generated by the motor during operation to be dissipated into the air more quickly, thereby maintaining the motor's operating temperature within a reasonable range.

[0011] The water-cooling tanks are fixedly installed at the front and rear ends of the main body's outer wall via the front and rear housings, respectively. This layout ensures that the coolant can evenly cover the main heat-generating areas of the motor, improving the heat dissipation effect.

[0012] Preferably, the second and third connecting pipes are mirror images of each other along the centerline of the permanent magnet motor body, and the second connecting pipe is made of stainless steel. This mirror image arrangement of the second and third connecting pipes along the centerline of the permanent magnet motor body is not only aesthetically pleasing but also ensures uniform flow of coolant inside the motor, improving heat dissipation efficiency.

[0013] The second connecting pipe is made of stainless steel, which has excellent corrosion resistance and high temperature resistance, ensuring the safety and stability of the coolant during long-term flow.

[0014] Preferably, the third connecting pipe is made of transparent soft rubber, and its two ends are movably inserted into openings in the two water-cooling tanks. This transparent, soft rubber design allows operators to directly observe the flow of coolant and detect any leaks. This design improves the system's reliability and safety.

[0015] The two ends of the third connecting pipe are movably inserted into the openings on the two water-cooling tanks. This design allows for easy disassembly and installation when maintenance or replacement of the connecting pipe is required, reducing maintenance costs and time.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention utilizes a circulation pump on the second connecting pipe to effectively pump coolant from one water-cooling tank to another, achieving rapid circulation of the coolant between the two tanks. This design ensures a continuous flow of coolant over the outer wall of the permanent magnet motor, effectively removing the heat generated by the motor. The rational layout of the first, second, and third connecting pipes allows the coolant to flow along a predetermined path, avoiding uncontrollable flow direction. Simultaneously, these connecting pipes ensure the continuity and stability of the coolant throughout the entire circulation process.

[0018] A water-cooled fan installed on the first connecting pipe forces air cooling onto the flowing coolant, effectively reducing its temperature. This design not only improves the coolant's heat dissipation efficiency but also allows the coolant to maintain a lower temperature during circulation, thus more effectively removing heat from the permanent magnet motor body.

[0019] The inner walls of the two water-cooling tanks contact the outer wall of the permanent magnet motor body but are not fixedly connected. This design ensures efficient heat exchange between the coolant and the motor's outer wall while avoiding stress problems caused by a fixed connection. The coolant can evenly cover the motor's outer wall, ensuring effective heat transfer.

[0020] In summary, this water-cooled permanent magnet motor, through its rational structural design and optimized working principle, effectively improves the circulation efficiency and cooling effect of the coolant, thereby enhancing the cooling performance of the permanent magnet motor. This design not only solves the problems existing in current technologies but also improves the motor's operational stability and service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the permanent magnet motor body structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the water-cooled tank connection structure of this utility model.

[0025] In the diagram: 1. Permanent magnet motor body; 11. Main body; 12. Front housing; 13. Rear housing; 14. Support frame; 15. Controller; 2. Water cooling tank; 3. Heat dissipation fins; 4. First connecting pipe; 41. Water cooling fan; 5. Second connecting pipe; 51. Circulation pump; 6. Third connecting pipe; 61. Connecting frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, one embodiment of this utility model is a water-cooled permanent magnet motor, including a permanent magnet motor body 1. Two water-cooling tanks 2 are provided on the outer side of the permanent magnet motor body 1. The inner walls of the two water-cooling tanks 2 are in contact with but not fixedly connected to the outer wall of the permanent magnet motor body 1. The top of the two water-cooling tanks 2 are opened and connected to each other through a first connecting pipe 4. A water-cooled fan 41 is fixedly installed on the first connecting pipe 4. The bottom of one side of the two water-cooling tanks 2 are opened and connected to each other through a second connecting pipe 5. A circulation pump 51 is fixedly installed on the second connecting pipe 5. The bottom of the other side of the two water-cooling tanks 2 are opened and connected to each other through a third connecting pipe 6. The third connecting pipe 6 is fixedly connected to the permanent magnet motor body 1 through a connecting bracket 61.

[0029] Specifically, through the circulation pump 51 on the second connecting pipe 5, the coolant is effectively pumped from one water-cooling tank 2 to another, achieving rapid circulation of the coolant between the two water-cooling tanks 2. This design ensures that the coolant can continuously flow over the outer wall of the permanent magnet motor body 1, effectively removing the heat generated by the motor. The rational layout of the first connecting pipe 4, the second connecting pipe 5, and the third connecting pipe 6 allows the coolant to flow along a predetermined path, avoiding uncontrollable flow direction. At the same time, these connecting pipes ensure the continuity and stability of the coolant throughout the circulation process; the water-cooled fan 41 installed on the first connecting pipe 4 provides forced air cooling for the flowing coolant, effectively reducing the coolant temperature. This design not only improves the heat dissipation efficiency of the coolant but also allows the coolant to maintain a lower temperature during circulation, thereby more effectively removing heat from the permanent magnet motor body 1.

[0030] The inner walls of the two water-cooling tanks 2 are in contact with but not fixedly connected to the outer wall of the permanent magnet motor body 1. This design ensures efficient heat exchange between the coolant and the outer wall of the motor while avoiding stress problems caused by a fixed connection. The coolant can evenly cover the outer wall of the motor, ensuring effective heat transfer.

[0031] In summary, this water-cooled permanent magnet motor, through its rational structural design and optimized working principle, effectively improves the circulation efficiency and cooling effect of the coolant, thereby enhancing the cooling performance of the permanent magnet motor. This design not only solves the problems existing in current technologies but also improves the motor's operational stability and service life.

[0032] Example 2

[0033] In order to ensure that the permanent magnet motor body is sufficiently cooled during operation, such as Figure 2 and Figure 3 As shown, in this embodiment, the permanent magnet motor body 1 includes a main body 11, a controller 15 fixedly mounted on the top of the main body 11, a front housing 12 fixedly mounted on the front end of the main body 11, a rear housing 13 fixedly mounted on the rear end of the main body 11, and a support frame 14 fixedly mounted on the bottom of the main body 11. The permanent magnet motor body 1, through its complete structural design including the main body 11, the front housing 12, the rear housing 13, and the support frame 14, ensures the stability and durability of the motor. The front housing 12 and the rear housing 13 not only provide protection but also help to fix the water-cooling tank 2, making the overall structure more compact and reliable.

[0034] The controller 15 is fixedly mounted on top of the main body 11 for easy operation and monitoring. This design allows the control logic to be tightly integrated with the motor body, improving the system's response speed and reliability.

[0035] Furthermore, the top of the controller 15 contacts but is not fixedly connected to the heat sink at the bottom of the water-cooling fan 41, and thermal silicone is applied to the connection point between the top of the controller 15 and the water-cooling fan 41. This design, where the top of the controller 15 contacts but is not fixedly connected to the heat sink at the bottom of the water-cooling fan 41, ensures effective heat transfer while avoiding wear and vibration problems caused by direct contact.

[0036] Thermal silicone is applied to the connection point between the top of the controller 15 and the water-cooled fan 41, which further improves the heat conduction efficiency and ensures the stability and reliability of the controller 15 during long-term operation.

[0037] Furthermore, heat dissipation fins 3 are welded at equal intervals to the outer walls of the main body 11 on opposite sides of the two water-cooling tanks 2. The two water-cooling tanks 2 are fixedly installed at the front and rear ends of the outer wall of the main body 11 via the front housing 12 and the rear housing 13, respectively. The design of welding heat dissipation fins 3 at equal intervals to the outer walls of the main body 11 on opposite sides of the two water-cooling tanks 2 significantly increases the heat dissipation area and improves heat dissipation efficiency. This design allows the heat generated by the motor during operation to be dissipated into the air more quickly, thereby maintaining the motor's operating temperature within a reasonable range.

[0038] The water-cooling tank 2 is fixedly installed at the front and rear ends of the outer wall of the main body 11 through the front housing 12 and the rear housing 13 respectively. This layout ensures that the coolant can evenly cover the main heat-generating area of ​​the motor, thus improving the heat dissipation effect.

[0039] Example 3

[0040] To improve the stability of the coolant during circulation and to facilitate maintenance, such as Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the second connecting pipe 5 and the third connecting pipe 6 are mirror-distributed along the centerline of the permanent magnet motor body 1, and the second connecting pipe 5 is made of stainless steel. The mirror-distribution of the second connecting pipe 5 and the third connecting pipe 6 along the centerline of the permanent magnet motor body 1 is not only aesthetically pleasing but also ensures uniform flow of coolant inside the motor, improving heat dissipation efficiency.

[0041] The second connecting pipe 5 is made of stainless steel, which has excellent corrosion resistance and high temperature resistance, ensuring the safety and stability of the coolant during long-term flow.

[0042] Furthermore, the third connecting pipe 6 is designed with a transparent, soft rubber material, and its two ends are respectively movably inserted into the openings on the two water-cooling tanks 2. The transparent, soft rubber material design of the third connecting pipe 6 allows operators to directly observe the flow of coolant and whether any leaks occur. This design improves the reliability and safety of the system.

[0043] The two ends of the third connecting pipe 6 are respectively movably inserted into the openings on the two water-cooling tanks 2. This design allows for easy disassembly and installation when maintenance or replacement of the connecting pipe is required, reducing maintenance costs and time.

[0044] When using this utility model, ensure that the permanent magnet motor body 1 is correctly installed and connected to the power supply and other necessary external equipment, check whether the water cooling tank 2, the first connecting pipe 4, the second connecting pipe 5 and the third connecting pipe 6 are all correctly connected and there is no leakage, and ensure that the circulating pump 51 and the water cooling fan 41 are connected to the power supply and are in working condition.

[0045] The circulation pump 51 is turned on, drawing coolant from one water-cooling tank 2 through the second connecting pipe 5 and pumping it to the other water-cooling tank 2. The coolant circulates between the two water-cooling tanks 2, covering and contacting the outer wall of the permanent magnet motor body 1, thereby absorbing and carrying away the heat generated by the motor. Simultaneously, the water-cooling fan 41 is started to cool the coolant passing through the first connecting pipe 4 and to cool the controller 15. The use of thermal silicone enhances the heat conduction between the controller 15 and the water-cooling fan 41, which helps to dissipate heat better. It should be noted that during the operation of the permanent magnet motor body 1, the temperature and flow rate of the coolant in the water-cooling tank 2 should be checked regularly to ensure that they are within the appropriate range. If the coolant temperature is found to be too high or the flow rate is insufficient, the power of the circulation pump 51 or the speed of the water-cooling fan 41 can be adjusted appropriately to improve the heat dissipation effect. By observing the third connecting pipe 6, the flow of coolant and whether there is any leakage can be checked visually. It is also necessary to clean the dirt and deposits on the water-cooling tank 2, connecting pipe and heat dissipation fins 3 regularly to maintain the best heat dissipation effect.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water-cooled permanent magnet motor, comprising a permanent magnet motor body (1), wherein two water-cooling tanks (2) are provided on the outer side of the permanent magnet motor body (1), and the inner walls of the two water-cooling tanks (2) are in contact with but not fixedly connected to the outer wall of the permanent magnet motor body (1), characterized in that: Both water-cooled tanks (2) have openings at the top and are connected by a first connecting pipe (4). A water-cooled fan (41) is fixedly installed on the first connecting pipe (4). Both water-cooled tanks (2) have openings at the bottom of one side and are connected by a second connecting pipe (5). A circulating pump (51) is fixedly installed on the second connecting pipe (5). Both water-cooled tanks (2) have openings at the bottom of the other side and are connected by a third connecting pipe (6). The third connecting pipe (6) is fixedly connected to the permanent magnet motor body (1) through a connecting bracket (61).

2. The water-cooled permanent magnet motor according to claim 1, characterized in that, The permanent magnet motor body (1) includes a main body (11), a controller (15) is fixedly installed on the top of the main body (11), a front shell (12) is fixedly installed on the front end of the main body (11), a rear shell (13) is fixedly installed on the rear end of the main body (11), and a support frame (14) is fixedly installed on the bottom of the main body (11).

3. The water-cooled permanent magnet motor according to claim 2, characterized in that, The top of the controller (15) contacts the heat sink at the bottom of the water-cooled fan (41) but is not fixedly connected. Thermal silicone is applied to the connection between the top of the controller (15) and the water-cooled fan (41).

4. The water-cooled permanent magnet motor according to claim 1, characterized in that, Heat dissipation fins (3) are welded at equal intervals on the outer wall of the main body (11) on opposite sides of the two water-cooled tanks (2). The two water-cooled tanks (2) are fixedly installed at the front and rear ends of the outer wall of the main body (11) through the front shell (12) and the rear shell (13), respectively.

5. The water-cooled permanent magnet motor according to claim 1, characterized in that, The second connecting pipe (5) and the third connecting pipe (6) are mirror-distributed along the centerline of the permanent magnet motor body (1), and the second connecting pipe (5) is made of stainless steel.

6. The water-cooled permanent magnet motor according to claim 1, characterized in that, The third connecting pipe (6) is made of transparent soft rubber material, and its two ends are respectively movably inserted into the openings on the two water-cooling tanks (2).

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