CN210927287U

CN210927287U - Water cooling structure for high-speed motor operation

Info

Publication number: CN210927287U
Application number: CN201921992527.1U
Authority: CN
Inventors: 高振涛; 李娅娟; 陈国斯; 毛永光
Original assignee: Dalian Electric Motor Group Co ltd
Current assignee: Dalian Electric Motor Group Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-03
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a motor heat abstractor technical field, concretely relates to water-cooling structure for high-speed motor operation. The cooling water chamber comprises a connection port A, a connection port B, a shaft extension end cooling water chamber, a non-shaft extension end cooling water chamber and a machine shell cooling water channel; the connection port A is connected to the interface A of the shaft extension end cooling water chamber, the interface B of the shaft extension end cooling water chamber is connected to the interface A of the machine shell cooling water channel, the interface B of the machine shell cooling water channel is connected to the interface A of the non-shaft extension end cooling water chamber, and the interface B of the non-shaft extension end cooling water chamber is connected to the connection port B. It dispels the heat to both ends bearing and casing, and to a great extent provides the radiating effect to the performance of motor has been improved.

Description

Water cooling structure for high-speed motor operation

Technical Field

The utility model relates to a motor heat abstractor technical field, concretely relates to water-cooling structure for high-speed motor operation.

Background

In the existing water-cooled motor, only a cooling water circulation water channel is adopted on a shell, the temperature of a bearing of the motor is very high under the condition of high-speed or heavy-load operation, and a method of arranging heat dissipation ribs on the periphery of the bearing is generally adopted for reducing the temperature. Therefore, there is a need to design a solution that can improve the heat dissipation capability of the bearing, thereby improving the reliability of the motor, and can reduce the operation cost of the motor.

Disclosure of Invention

In view of the defects of the prior art, the utility model aims at providing a water-cooling structure for high-speed motor operation, it dispels the heat to both ends bearing and casing, and to a great extent provides the radiating effect to the performance of motor has been improved.

In order to achieve the purpose, the technical scheme provided by the utility model is a water cooling structure for the operation of a high-speed motor, which comprises a connection port A, a connection port B, a shaft extension end cooling water chamber, a non-shaft extension end cooling water chamber and a casing cooling water channel; the connection port A is connected to the interface A of the shaft extension end cooling water chamber, the interface B of the shaft extension end cooling water chamber is connected to the interface A of the machine shell cooling water channel, the interface B of the machine shell cooling water channel is connected to the interface A of the non-shaft extension end cooling water chamber, and the interface B of the non-shaft extension end cooling water chamber is connected to the connection port B.

Based on the technical scheme, the structure not only can radiate heat for the shell, but also can improve the heat radiating capacity of the bearing, so that the shell and the bearing are integrated, the reliability of the motor is improved, and the running cost of the motor is reduced.

It should be noted that, both the connection port a and the connection port B may be cooling water inlets, and the other port may be a cooling water outlet, and this arrangement determines the water flow direction of the water-cooling structure, which depends on the relative temperatures of the shaft-extension-end support bearing and the non-shaft-extension-end support bearing.

Furthermore, the connection port A, the connection port B, the water tank and the water pump are connected to form a circulation loop.

Further, the machine shell cooling water channel is a spiral water channel.

Based on above-mentioned technical scheme, heat transfer area is bigger, and the water-cooling effect is better.

Further, the high-speed motor includes a housing; and a spiral water channel which is uniformly distributed around the stator core is arranged from one end to the other end of the stator core in the shell along the axis direction.

Furthermore, the high-speed motor comprises a shaft extension end cover, a non-shaft extension end cover, a shaft extension end support bearing and a non-shaft extension end support bearing; the shaft extension end cooling water chamber is arranged at the periphery of a shaft extension end supporting bearing in the shaft extension end cover; the non-shaft extension end cooling water chamber is arranged on the periphery of a non-shaft extension end supporting bearing in the non-shaft extension end cover.

Based on the technical scheme, cooling water enters from the shaft extension end cover, enters into the machine shell cooling water channel after the shaft extension end cooling water chamber circulates, enters into the non-shaft extension end cooling water chamber after the machine shell cooling water channel circulates, and directly flows out from the non-shaft extension end cover after the circulation is completed. Or the flow direction of the cooling water is switched, the cooling water enters from the end cover of the non-shaft-extension end, enters into the cooling water channel of the machine shell after the cooling water chamber of the non-shaft-extension end circulates, enters into the cooling water chamber of the shaft-extension end after the cooling water channel of the machine shell circulates, and directly flows out from the end cover of the shaft-extension end after the circulation is completed. The two cooling water flow directions can be selected by detecting the temperature of the bearings at the shaft extension end and the non-shaft extension end, and the cooling water is introduced from the hotter end.

Preferably, the shaft extension end cooling water chamber and the non-shaft extension end cooling water chamber are both annular cavities.

Furthermore, the connection port A is arranged on the shaft extension end cover, and the connection port B is arranged on the non-shaft extension end cover.

Furthermore, the water hole of the end cover of the shaft extension end communicated with the machine shell is sealed by a sealing ring, and the water hole of the end cover of the non-shaft extension end communicated with the machine shell is sealed by a sealing ring.

Based on above-mentioned technical scheme, reach sealed effect, avoid the cooling water to leak.

The utility model has the advantages that: this structure can dispel the heat to both ends bearing and casing simultaneously, and to a great extent provides the radiating effect to the performance of motor has been improved.

Drawings

Fig. 1 is the structure schematic diagram of the utility model:

in the figure: 1. shaft extension end support bearing, 2 shaft extension end cover, 3, A connection port, 4, casing, 5, rotor, 6, stator, 7, spiral water channel, 8, B connection port, 9, non-shaft extension end support bearing, 10, non-shaft extension end cover, 11, shaft extension end cooling water chamber, 12, non-shaft extension end cooling water chamber, 13 and sealing ring.

Detailed Description

The structure of the present invention will be further explained with reference to the drawings.

A water cooling structure for high-speed motor operation comprises an A connection port 3, a B connection port 8, a shaft extension end cooling water chamber 11, a non-shaft extension end cooling water chamber 12 and a machine shell cooling water channel; the A connection port 3 is connected to an A interface of the shaft extension end cooling water chamber, a B interface of the shaft extension end cooling water chamber is connected to an A interface of the machine shell cooling water channel, a B interface of the machine shell cooling water channel is connected to an A interface of the non-shaft extension end cooling water chamber, and a B interface of the non-shaft extension end cooling water chamber is connected to a B connection port.

Further, the connection port A3, the connection port B8, the water tank and the water pump are connected to form a circulation loop, and the cooling medium adopts softened water and ethanol mixed liquid

Further, the machine shell cooling water channel is a spiral water channel 7.

Further, the high-speed motor includes a housing 4; and a spiral water channel which is uniformly distributed around the stator core is arranged outside the stator core in the shell 4 from one end to the other end along the axis direction.

Further, the high-speed motor comprises a shaft extension end cover 2, a non-shaft extension end cover 10, a shaft extension end support bearing 1 and a non-shaft extension end support bearing 9; the shaft extension end cooling water chamber 11 is arranged at the periphery of the shaft extension end supporting bearing 1 in the shaft extension end cover 2; the non-shaft extension end cooling water chamber 12 is arranged at the periphery of the non-shaft extension end supporting bearing 9 in the non-shaft extension end cover 10.

In the present embodiment, as shown in fig. 1, the shaft-extension end cap 2 is a front end cap, and the non-shaft-extension end cap 10 is a rear end cap; the front end cover is provided with a cooling water inlet, a partition plate and a cooling water outlet, and cooling water enters the shell water channel from the outlet; the machine shell water channel comprises an inner sleeve, an outer sleeve and a spiral water channel; cooling water enters the rear end cover after circulating for a circle in the machine shell water channel, and the rear end cover is also provided with a cooling water inlet, a partition plate and a cooling water outlet; the cooling water finally flows out from the outlet of the rear end cover. This structure can dispel the heat to both ends bearing and casing simultaneously, and to a great extent provides the radiating effect to the performance of motor has been improved.

Preferably, the shaft extension end cooling water chamber 11 and the non-shaft extension end cooling water chamber 12 are both annular cavities.

Furthermore, the water hole of the shaft extension end cover 2 communicated with the machine shell 4 is sealed through a sealing ring 13, and the water hole of the non-shaft extension end cover 10 communicated with the machine shell 4 is sealed through the sealing ring 13.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a water-cooling structure for high-speed motor operation which characterized in that: the cooling water chamber comprises a connection port A, a connection port B, a shaft extension end cooling water chamber, a non-shaft extension end cooling water chamber and a machine shell cooling water channel; the connection port A is connected to the interface A of the shaft extension end cooling water chamber, the interface B of the shaft extension end cooling water chamber is connected to the interface A of the machine shell cooling water channel, the interface B of the machine shell cooling water channel is connected to the interface A of the non-shaft extension end cooling water chamber, and the interface B of the non-shaft extension end cooling water chamber is connected to the connection port B.

2. The water cooling structure for high-speed motor operation according to claim 1, wherein: the connection port A, the connection port B, the water tank and the water pump are connected to form a circulation loop.

3. The water cooling structure for high-speed motor operation according to claim 1, wherein: the machine shell cooling water channel is a spiral water channel.

4. The water cooling structure for high-speed motor operation according to claim 3, wherein: the high-speed motor comprises a shell; and a spiral water channel which is uniformly distributed around the stator core is arranged from one end to the other end of the stator core in the shell along the axis direction.

5. The water cooling structure for high-speed motor operation according to claim 1, wherein: the high-speed motor comprises a shaft extension end cover, a non-shaft extension end cover, a shaft extension end support bearing and a non-shaft extension end support bearing; the shaft extension end cooling water chamber is arranged at the periphery of a shaft extension end supporting bearing in the shaft extension end cover; the non-shaft extension end cooling water chamber is arranged on the periphery of a non-shaft extension end supporting bearing in the non-shaft extension end cover.

6. The water cooling structure for high-speed motor operation according to claim 5, wherein: and the shaft extension end cooling water chamber and the non-shaft extension end cooling water chamber are both annular cavities.

7. The water cooling structure for high-speed motor operation according to claim 5, wherein: the connection port A is arranged on the shaft extension end cover, and the connection port B is arranged on the non-shaft extension end cover.

8. The water cooling structure for high-speed motor operation according to claim 5, wherein: the water hole of the end cover of the shaft extension end communicated with the machine shell is sealed by a sealing ring, and the water hole of the end cover of the non-shaft extension end communicated with the machine shell is sealed by a sealing ring.