Permanent magnet synchronous motor with built-in water cooling

Abstract

The utility model discloses a built -in water cooling's permanent magnet synchronous motor belongs to permanent magnet synchronous motor technical field. The motor includes casing, bracing board, bottom plate, damping mechanism and occlusion subassembly. The damping mechanism is connected between bracing board and bottom plate, and it includes the connecting column fixed on the bottom plate, the spring and the sliding disc of casing on the connecting column, and the fixed block fixed at the bottom of bracing board, and the fixed block abuts against the sliding disc, and the sliding disc slidingly fits the connecting column and extrudes the spring. The occlusion subassembly is arranged on the casing, and it includes the water pipe joint and the reinforcing ring fixed on the casing, and the plug for plugging the water pipe joint, and the plug is connected to the reinforcing ring through the flexible rotating block, and the water pipe joint is internally provided with the sealing ring. The utility model effectively absorbs vibration through the damping mechanism, reduces the noise, and improves the running stability. Through the occlusion subassembly, the cooling liquid is conveniently filled, the plug is not easy to lose, the sealing is reliable, and the maintainability of the motor is improved.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet synchronous motor technology, and in particular to a permanent magnet synchronous motor with built-in water cooling. Background Technology

[0002] Permanent magnet synchronous motors (PMSMs) are widely used in industrial automation, new energy vehicles, and other fields due to their high efficiency, high power density, and excellent speed regulation performance. With technological advancements, PMSMs are evolving towards higher speeds and higher power densities.

[0003] However, the increase in motor power density has brought about significant heat generation issues. To ensure stable motor operation, an integrated water-cooling system has become an efficient heat dissipation solution. While existing water-cooled motors have solved the heat dissipation problem, they have shortcomings in terms of coolant filling and maintenance. Their filling port designs are often quite simple, making operation inconvenient. Small parts such as the plugs used for sealing are also easily lost during maintenance, posing risks and inconveniences for subsequent use.

[0004] Meanwhile, when a motor operates at high speed, it inevitably generates mechanical vibration and noise. This vibration not only affects the motor's own operational stability and lifespan but also adversely impacts connected equipment systems. Conventional motors are typically installed using simple rigid connections or general-purpose vibration damping pads, which offer limited vibration reduction and are insufficient for applications requiring high operational stability.

[0005] In summary, the existing permanent magnet synchronous motors fail to adequately balance the needs for efficient vibration reduction and convenient maintenance in their structural design, lacking an integrated solution that can simultaneously and effectively suppress operating vibration and provide a convenient and reliable coolant filling port.

[0006] Therefore, this utility model proposes a permanent magnet synchronous motor with built-in water cooling to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems of large vibration, poor stability and inconvenient operation of water-cooled permanent magnet synchronous motors in the prior art, as well as the inconvenience of coolant replenishment and the easy loss of sealing components, this utility model aims to provide a water-cooled permanent magnet synchronous motor with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a water-cooled permanent magnet synchronous motor, including: a housing, a support plate fixedly connected to the bottom of the housing, and a base plate; it also includes a shock-absorbing mechanism connected between the support plate and the base plate, and a blocking component disposed on the housing.

[0009] The shock absorption mechanism includes a connecting column fixedly connected to the base plate, a spring and a sliding disc sleeved on the connecting column, and a fixing block fixedly connected to the bottom of the support plate. The fixing block abuts against the sliding disc, and the sliding disc slides against the connecting column and can compress the spring. Through this structural combination, the vertical vibration of the motor is converted into the elastic deformation of the spring, thereby absorbing and dissipating the vibration energy and significantly improving the stability of the equipment operation.

[0010] The sealing assembly includes a water pipe connector fixed to the housing and a plug for sealing the water pipe connector, providing a convenient and reliable interface for the maintenance of the cooling system and simplifying the filling and replacement of coolant.

[0011] Preferably, an auxiliary plate is fixedly connected to the bottom of the support plate, and the fixing block is fixedly connected to the bottom of the auxiliary plate.

[0012] Furthermore, by adding an auxiliary plate as a connector between the support plate and the fixed block, the force transmission path becomes clearer and more concentrated, the structure becomes more stable, and the vibration can be accurately transmitted to the core working component of the damping mechanism, thus improving the reliability of the damping.

[0013] Preferably, a limiting ring is fixedly connected to the connecting column, and the limiting ring faces the auxiliary plate.

[0014] Furthermore, the setting of the limit ring effectively restricts the upward movement range of the auxiliary plate, preventing excessive displacement or even detachment of components in the damping mechanism under severe vibration, adding a mechanical safety barrier to the stable operation of the entire damping system, and improving the safety and durability of the device.

[0015] Preferably, the shock absorption mechanism further includes a housing, and the fixing block is slidably housed inside the housing.

[0016] Furthermore, the outer shell not only provides precise guidance for the vertical sliding of the fixed block, ensuring its smooth movement, but also effectively protects the fixed block and the internal sliding mating surfaces from external dust, moisture, and other impurities, thus extending the service life of the shock absorption mechanism.

[0017] Preferably, one end of the spring is fixedly connected to the base plate, and the other end abuts against the bottom surface of the sliding disk.

[0018] Furthermore, the contact point between the spring and the sliding plate is clearly defined as the bottom surface of the sliding plate, ensuring that the pressure transmitted from the fixed block can be applied to the spring evenly and vertically, avoiding uneven force distribution or jamming of the spring caused by off-center loading, and making the energy conversion and absorption process more efficient and smooth.

[0019] Preferably, the closure assembly further includes a reinforcing ring fixed to the housing, and the plug is connected to the reinforcing ring via a rotating block.

[0020] Furthermore, by connecting the plug to the reinforcing ring fixed on the housing through a rotating block, a loss-proof structure is formed, which fundamentally solves the problem of the plug falling off or being lost due to negligence by maintenance personnel during operation, and greatly improves the convenience and reliability of equipment maintenance.

[0021] Preferably, the rotating block is made of a flexible material.

[0022] Furthermore, the rotating block is made of flexible material, giving it good toughness and flexibility, making the operation of pulling out and inserting the plug more flexible and effortless, less prone to breakage, and able to adapt to different angles of operation, thus improving the human-computer interaction experience.

[0023] Preferably, the water pipe joint has a sealing ring inside.

[0024] Furthermore, a sealing ring is added inside the water pipe joint. Its elastic deformation forms a reliable sealing barrier between the plug and the inner wall of the water pipe joint, effectively preventing leakage or evaporation of the coolant inside the motor. This ensures the stability of the pressure and liquid level of the water cooling system and provides a guarantee for the long-term safe operation of the motor.

[0025] This utility model has the following beneficial effects: 1. This utility model solves the problems of unstable operation, high noise, and shortened lifespan caused by large vibrations in existing permanent magnet synchronous motors by setting up a shock-absorbing mechanism connected between the support plate and the base plate, and by using a fixed block to drive the sliding disc to compress the spring. It achieves the beneficial effects of effectively absorbing and buffering vibration energy, improving the stability of equipment operation, reducing noise, and extending the service life of the motor.

[0026] 2. This utility model solves the problems of inconvenient operation when replenishing coolant in existing water-cooled motors and easy loss of components such as the sealing plug by setting a plug component on the housing. The component includes a plug connected to a reinforcing ring by a flexible rotating block and a built-in sealing ring. It achieves the beneficial effects of simplifying maintenance operation, realizing rapid replenishment, effectively preventing the loss of key small components, and ensuring the sealing reliability of the cooling system.

[0027] 3. This utility model solves the problem of existing motor structures having single functions and failing to comprehensively consider operational stability and ease of maintenance by integrating a high-efficiency shock absorption mechanism with a convenient blocking component. It achieves the beneficial effects of compact structure, complete functions, and significantly improved maintainability and reliability of equipment while ensuring stable motor operation. Attached Figure Description

[0028] Figure 1 A three-dimensional schematic diagram of a water-cooled permanent magnet synchronous motor proposed in this utility model; Figure 2 This is a schematic diagram of the housing of a water-cooled permanent magnet synchronous motor according to the present invention. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of a fixing block for a permanent magnet synchronous motor with built-in water cooling, as proposed in this utility model.

[0029] Legend: 1. Shell; 2. Support plate; 3. Shock absorption mechanism; 31. Auxiliary plate; 32. Limiting ring; 33. Connecting column; 34. Sliding plate; 35. Spring; 36. Fixing block; 37. Outer shell; 4. Base plate; 5. Closure assembly; 51. Reinforcing ring; 52. Rotating block; 53. Plug; 54. Water pipe connector; 55. Sealing ring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] Example 1, please refer to Figures 1 to 4 This utility model provides a water-cooled permanent magnet synchronous motor, which aims to solve the problems of large vibration, poor stability and inconvenient coolant replenishment operation and easy loss of components in existing permanent magnet synchronous motors.

[0032] like Figure 1 and Figure 2As shown, the water-cooled permanent magnet synchronous motor includes a housing 1 and a base plate 4 for mounting the entire motor. A support plate 2 is fixedly connected to the bottom of the housing 1, and a blocking assembly 5 is also provided on the housing 1. A shock-absorbing mechanism 3 is connected between the support plate 2 and the base plate 4. The shock-absorbing mechanism 3 includes a connecting column 33 that is vertically fixedly connected to the base plate 4. A spring 35 and a sliding disk 34 are sleeved on the outside of the connecting column 33. One end of the spring 35 is fixedly connected to the base plate 4, and the other end abuts against the bottom surface of the sliding disk 34. The sliding disk 34 can slide on the outside of the connecting column 33. The shock-absorbing mechanism 3 also includes a fixing block 36, which is fixedly connected to the bottom of the support plate 2 and abuts against the sliding disk 34. Thus, when the housing 1 vibrates, the fixing block 36 can drive the sliding disk 34 to compress the spring 35. The blocking assembly 5 includes a water pipe connector 54 fixed to the housing 1 and a plug 53 for sealing the water pipe connector 54.

[0033] Reference Figure 2 and Figure 4 The bottom of the support plate 2 is fixedly connected to an auxiliary plate 31, and the fixing block 36 is fixedly connected to the bottom of the auxiliary plate 31. The shock absorption mechanism 3 also includes a housing 37, in which the fixing block 36 can be slidably housed. The housing 37 guides and protects the vertical movement of the fixing block 36. A limiting ring 32 is fixedly connected to the upper part of the connecting column 33. The limiting ring 32 faces the auxiliary plate 31 and is used to limit the upward movement of the auxiliary plate 31 to prevent it from falling out. During operation, the vertical vibration of the housing 1 is transmitted to the fixing block 36 through the support plate 2 and the auxiliary plate 31. The fixing block 36 then pushes the sliding disk 34 below it to slide downward along the connecting column 33 and compress the spring 35. This method of converting kinetic energy into elastic potential energy effectively absorbs and buffers vibration energy, thereby improving the overall operating stability of the motor and reducing noise.

[0034] Reference Figure 2 and Figure 3 In addition to the water pipe connector 54 and the plug 53, the sealing assembly 5 also includes a reinforcing ring 51 fixed to the housing 1. The plug 53 is connected to the reinforcing ring 51 by a rotating block 52. The rotating block 52 is preferably made of a flexible material, which facilitates the insertion and removal of the plug 53 and also serves as a connection to prevent loss. A sealing ring 55 is also provided inside the water pipe connector 54. When the plug 53 is inserted into the water pipe connector 54, the sealing ring 55 can provide a reliable sealing effect to prevent leakage of the internal cooling medium.

[0035] In one specific implementation, an auxiliary plate 31 is fixedly connected to the bottom of the support plate 2, and a fixing block 36 is fixedly connected to the bottom of the auxiliary plate 31. To further enhance the operational stability of the damping mechanism 3 and prevent excessive displacement of components, a limiting ring 32 is also fixedly connected to the connecting column 33. The limiting ring 32 faces the auxiliary plate 31, thereby effectively restricting the upward movement of the auxiliary plate 31. Simultaneously, to guide the sliding of the fixing block 36 and protect it from external environmental influences, the damping mechanism 3 is also equipped with a housing 37, and the fixing block 36... 6 can be slidably housed inside the housing 37; as a further definition of the shock-absorbing core structure, the other end of the spring 35 specifically abuts against the bottom surface of the sliding disc 34 to ensure direct and effective force transmission; for the plug assembly 5, in order to achieve its convenient operation and anti-loss function, it also includes a reinforcing ring 51 fixed on the housing 1, the plug 53 is connected to the reinforcing ring 51 through a rotating block 52, and the rotating block 52 is made of flexible material; in order to ensure the sealing reliability of the filling port, a sealing ring 55 is also installed inside the water pipe connector 54.

[0036] The working principle is as follows: When the device is working, it will vibrate. At this time, the housing 1 will drive the support plate 2 and the auxiliary plate 31 to move up and down. The limiting ring 32 restricts the upward space of the auxiliary plate 31. The fixing block 36 at the bottom of the auxiliary plate 31 slides inside the housing 37. The movement of the fixing block 36 will drive the sliding plate 34, causing the sliding plate 34 to slide outside the connecting column 33 and squeeze the spring 35 below it. The other end of the spring 35 is fixedly connected to the base plate 4. The spring 35 absorbs the energy of vibration through its own elastic deformation, thereby achieving the effect of vibration reduction and noise reduction, effectively protecting the internal structure and improving the operational stability.

[0037] When water or coolant needs to be added to the device, the plug 53 can be pulled out to release the closed state of the water pipe joint 54. The rotating block 52 is made of flexible material, which facilitates the operation of pulling out the plug 53. At the same time, the rotating block 52 connects the plug 53 and the reinforcing ring 51 fixed on the housing 1, effectively preventing the plug 53 from falling out. After the filling is completed, the plug 53 is reinserted. The sealing ring 55 inside the water pipe joint 54 can ensure the sealing of the device. The structure significantly reduces the difficulty of maintenance and operation and ensures the long-term stable operation of the motor cooling system.

Claims

1. A water-cooled permanent magnet synchronous motor, comprising: The housing (1) has a support plate (2) fixedly connected to its bottom. And the base plate (4); The motor is characterized in that it further includes a shock-absorbing mechanism (3) connected between the support plate (2) and the base plate (4). The shock absorption mechanism (3) includes a connecting column (33) fixedly connected to the base plate (4), a spring (35) and a sliding plate (34) sleeved on the connecting column (33), and a fixing block (36) fixedly connected to the bottom of the support plate (2). The fixing block (36) abuts against the sliding plate (34), and the sliding plate (34) slides in cooperation with the connecting column (33) and squeezes the spring (35). and a blocking assembly (5) disposed on the housing (1); the blocking assembly (5) includes a water pipe joint (54) fixed to the housing (1) and a plug (53) for sealing the water pipe joint (54).

2. The water-cooled permanent magnet synchronous motor according to claim 1, characterized in that, An auxiliary plate (31) is fixedly connected to the bottom of the support plate (2), and the fixing block (36) is fixedly connected to the bottom of the auxiliary plate (31).

3. The water-cooled permanent magnet synchronous motor according to claim 2, characterized in that, A limiting ring (32) is fixedly connected to the connecting column (33), and the limiting ring (32) is positioned facing the auxiliary plate (31) to restrict its movement space.

4. The water-cooled permanent magnet synchronous motor according to claim 2, characterized in that, The shock absorption mechanism (3) also includes a housing (37), and the fixing block (36) is slidably housed inside the housing (37).

5. The water-cooled permanent magnet synchronous motor according to claim 1, characterized in that, One end of the spring (35) is fixedly connected to the base plate (4), and the other end abuts against the bottom surface of the sliding disk (34).

6. The water-cooled permanent magnet synchronous motor according to claim 1, characterized in that, The closure assembly (5) further includes a reinforcing ring (51) fixed to the housing (1), and the plug (53) is connected to the reinforcing ring (51) via a rotating block (52).

7. The water-cooled permanent magnet synchronous motor according to claim 6, characterized in that, The rotating block (52) is made of a flexible material.

8. The water-cooled permanent magnet synchronous motor according to claim 1, characterized in that, The water pipe connector (54) is provided with a sealing ring (55) inside.

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