Water-cooled machine base for permanent magnet synchronous motor

Abstract

This invention discloses a water-cooled mounting base for a permanent magnet synchronous motor, relating to the field of synchronous motors. It includes a motor body, with a housing fitted around its periphery. A fan is mounted on the inner wall of the housing near the rear end of the motor body. The output shaft of the motor body is fixedly connected to the fan. A cooling device, rotatably connected to the inner wall of the housing, is located on the side of the fan away from the motor body. The cooling device includes several inclined plates with one end close to each other and fixedly connected. Several mist nozzles are fixedly connected to the side of the inclined plates near the motor body. This water-cooled mounting base for the permanent magnet synchronous motor achieves water cooling of the motor body without creating a circulating water channel.

Description

Technical Field

[0001] This invention relates to the field of synchronous motors, specifically to a water-cooled frame for a permanent magnet synchronous motor. Background Technology

[0002] Currently, most high-power permanent magnet synchronous motors use a welded structure for their water-cooled bases. A circulating water channel is opened inside the base housing. This circulating water channel consists of multiple evenly distributed and interconnected water channels. When the motor is working, cooling water is circulated in the water channels to cool the motor.

[0003] A water-cooled base with a circulating water channel inside the base housing may not be strong enough to meet the usage requirements when the motor is subjected to a large axial load. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a water-cooled housing for a permanent magnet synchronous motor. This solves the problem that water-cooled housings with circulating water channels inside the housing may lack sufficient strength and fail to meet usage requirements when the motor experiences a large axial load.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: it includes a motor body, a housing is sleeved around the periphery of the motor body, a fan is provided on the inner wall of the housing near the tail end of the motor body, the output shaft of the motor body is fixedly connected to the fan, a cooling device is provided on the side of the fan away from the motor body and rotatably connected to the inner wall of the housing, the cooling device includes a plurality of inclined plates with one end close to each other and fixedly connected, and a plurality of mist nozzles are fixedly connected on the side of the inclined plates near the motor body.

[0008] Preferably, a drainage groove penetrating the inner wall is provided on the lower part of the periphery of the housing.

[0009] Preferably, a T-shaped block is fixedly connected to one end of each of the inclined plates that is far apart from each other, and a T-shaped annular groove that mates with the T-shaped block is provided on the inner wall of the housing.

[0010] Preferably, a water inlet pipe is provided on one side of the cooling device, and a water guide pipe connected to the mist nozzle is opened inside the inclined plate. One end of the water inlet pipe extends into the interior of the inclined plate and is connected to the water guide pipe.

[0011] Preferably, the water inlet pipe is rotatably connected to the cooling device.

[0012] (III) Beneficial Effects

[0013] This invention provides a water-cooled base for a permanent magnet synchronous motor. It has the following advantages:

[0014] (1) The water-cooled base of the permanent magnet synchronous motor is fitted with a housing around the motor body. The inner diameter of the housing is larger than the outer diameter of the motor body. A fan and a cooling device are arranged in sequence on the inner wall of the housing near the tail end of the motor body. The fan rotates, the flowing air drives the cooling device to rotate, and the water mist sprayed from the mist nozzle is sprayed out after passing through the gap between the motor body and the housing. This achieves water cooling of the motor body without opening a circulating water channel in the motor body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the motor body structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the shell structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the connection structure of the cooling device of the present invention;

[0019] Figure 5 This is a schematic diagram of the inclined plate structure of the present invention;

[0020] Figure 6 This is a cross-sectional schematic diagram of the inclined plate structure of the present invention.

[0021] In the diagram: 1. Motor body; 11. Connecting block; 2. Housing; 21. Drainage groove; 22. T-shaped ring groove; 3. Fan; 4. Cooling device; 41. Inclined plate; 411. Water guide pipe; 42. Mist nozzle; 43. T-shaped block; 5. Water inlet pipe. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-6This invention provides a technical solution comprising: a motor body 1 (existing technology), a housing 2 sleeved around the periphery of the motor body 1, the motor body 1 and the housing 2 being fixedly connected by several connecting blocks 11, the inner diameter of the housing 2 being larger than the outer diameter of the motor body 1, creating a gap between the motor body 1 and the housing 2, a fan 3 being disposed on the inner wall of the housing 2 near the tail end of the motor body 1, the air blown by the fan 3 flowing out at the front end of the motor body 1 after passing through the gap, the output shaft of the motor body 1 being fixedly connected to the fan 3, and the output shaft of the motor body 1 being fixed at the center of the fan 3. The connection is made so that the output shaft rotates, driving the fan 3 to rotate. As the fan 3 rotates, the flowing air flows from the tail end of the motor body 1 to the front end. A cooling device 4 is provided on the side of the fan 3 away from the motor body 1 and is rotatably connected to the inner wall of the housing 2. The cooling device 4 includes several inclined plates 41 that are close to each other and fixedly connected at one end. The flowing air drives the cooling device 4 to rotate through the inclined plates 41. Several mist nozzles 42 are fixedly connected on the side of the inclined plates 41 close to the motor body 1. The flowing air drives the water mist sprayed by the mist nozzles 42 to contact the motor body 1 and absorb heat to cool it.

[0024] A drainage groove 21 is provided on the lower part of the two sides of the shell, penetrating its inner wall, and the water condensed in the water mist flows out through the drainage groove 21.

[0025] Several inclined plates 41 are fixedly connected to T-shaped blocks 43 at their far ends. The inner wall of the housing 2 is provided with T-shaped annular grooves 22 that cooperate with the T-shaped blocks 43. The flowing air drives the cooling device 4 to rotate through the inclined arrangement of the inclined plates 41, so that the water mist is sprayed more evenly. A water inlet pipe 5 is provided on one side of the cooling device 4. A water guide pipe 411 connected to the mist nozzle 42 is provided inside the inclined plate 41. One end of the water inlet pipe 5 extends into the interior of the inclined plate 41 and is connected to the water guide pipe 411 to allow water to flow.

[0026] The water inlet pipe 5 is rotatably connected to the cooling device 4 to prevent the water inlet pipe 5 from obstructing the rotation of the cooling device 4. A sealing ring is provided between the water inlet pipe 5 and the cooling device 4 to prevent water leakage.

[0027] In use, simply start the motor body 1. The output shaft of the motor body 1 rotates, which drives the fan 3 to rotate and causes air to flow. The flowing air drives the cooling device 4 to rotate, making the water mist sprayed by the mist nozzle 42 more uniform. The flowing air also causes the water mist to flow through the gaps in the housing 2 of the motor body 1, thus cooling the motor body 1.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-cooled machine frame for a permanent magnet synchronous electric machine, characterized by: Including motor body (1); The shell (2) is sleeved with the motor body (1) on the circumference side, and the inner wall of the shell (2) is provided with a fan (3) close to the tail end of the motor body (1); The output shaft of the motor body (1) is fixedly connected with the fan (3); The side of the fan (3) away from the motor body (1) is provided with a cooling device (4) rotatably connected with the inner wall of the shell (2); The cooling device (4) comprises a plurality of inclined plates (41) fixedly connected at one end close to each other, and a plurality of mist nozzles (42) are fixedly connected to one side of the inclined plate (41) close to the motor body (1); The lower side of the circumference of the shell (2) is provided with a drainage groove (21) penetrating through the inner wall thereof; A plurality of the inclined plates (41) are fixedly connected at one end away from each other with a T-shaped block (43), and the inner wall of the shell (2) is provided with a T-shaped ring groove (22) matched with the T-shaped block (43); One side of the cooling device (4) is provided with a water inlet pipe (5), the inside of the inclined plate (41) is provided with a water guide pipe (411) communicated with the mist nozzle (42), and one end of the water inlet pipe (5) extends into the inside of the inclined plate (41) and is communicated with the water guide pipe (411).

2. A water-cooled machine bed for permanent magnet synchronous machines according to claim 1, characterized in that: The water inlet pipe (5) is rotatably connected with the cooling device (4).

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