Embedded multi-channel water-helium double circulation cooling structure for large motor

A large-scale motor and cooling structure technology, applied in the magnetic circuit shape/style/structure, cooling/ventilation device, electrical components, etc., can solve the problems of poor cooling effect of air-cooled cooling pipes, single structure design, etc., and achieve satisfactory processing and manufacturing process. , The structure design is simple, the effect of improving the heat exchange rate

Inactive Publication Date: 2020-01-14
HARBIN UNIV OF SCI & TECH
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Problems solved by technology

[0006] The purpose of the present invention is to provide a built-in multi-channel water-helium double circulation cooling structure for large motors, so as to solve the problems of poor cooling effect of air-cooled cooling pipes and single structural design of existing large high-voltage motors

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  • Embedded multi-channel water-helium double circulation cooling structure for large motor
  • Embedded multi-channel water-helium double circulation cooling structure for large motor
  • Embedded multi-channel water-helium double circulation cooling structure for large motor

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Embodiment Construction

[0016] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0017] See attached figure 1 , attached figure 2 And attached image 3 , the present invention provides a technical solution: an embedded multi-channel water-helium double circulation cooling structure for large motors, including stator core 5, milling groove 6, cooling pipe 3, slot wedge 4, cooling pipe No. The first interface 1, the second interface 2 of the cooling pipe, is characterized in that the outside of the stator core 5 is provided with a milling groove 6, the cooling pipe 3 and the slot wedge 4 are embedded in the milling groove 6, and the slot wedge 4 is used to fix the cooling pipe 3.

[0018] Further, the first interface 1 of the cooling pipeline and the second interface 2 of the cooling pipeline are arranged at one end of the motor.

[0019] Further, the cooling pipes 3 are distributed along the axial direct...

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Abstract

The invention belongs to the technical field of heat dissipation of large motors, in particular to an embedded multi-channel water-helium double circulation cooling structure for a large motor. The structure comprises a stator iron core, a milling groove, a cooling pipeline, a groove wedge, a cooling pipeline first interface and a cooling pipeline second interface. The structure is characterized in that the cooling pipeline is composed of a gas cooling pipeline and a spiral liquid injection cooling pipeline, i.e. the spiral liquid injection cooling pipeline is sleeved in the gas cooling pipeline. According to the design, the heat is taken away through heat transfer between the outer wall of the cooling pipeline and the stator iron core, and the opposite flow of the cooling gas (helium) inthe cooling pipeline is utilized so that helium with different flow directions can also perform secondary heat transfer through the middle pipe wall in the cooling pipeline to achieve the purpose of secondary cooling. In addition, the spiral liquid injection cooling pipeline can be injected with liquid according to the specific temperature rise of the motor, and helium in different flow directionscan be cooled again so as to fully achieve the purposes of cooling the motor and prolonging the service life of the motor.

Description

technical field [0001] The invention relates to the technical field of heat dissipation of large motors, in particular to an embedded multi-channel water-helium double circulation cooling structure for large motors. Background technique [0002] Although large motors have the advantages of large capacity and high power density, at the same time, with the increase of the single motor capacity, the internal temperature rise of the motor also increases, and the local heating phenomenon is more serious, which greatly limits the increase in motor capacity. and development. [0003] The motor will generate a certain loss during normal operation, which is mainly expressed in the form of heat energy, and then the heat will be taken away by the motor cooling system, thereby reducing the temperature rise of the motor, and the continuous overheating of the motor will cause abnormal aging of the internal insulation, directly It affects the life of the motor, and then affects the safe a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/20H02K9/19
CPCH02K1/20H02K9/19
Inventor 温嘉斌张家铖艾萌萌
Owner HARBIN UNIV OF SCI & TECH
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