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Motor employing immersion type evaporative cooling and structure optimization method thereof

A technology of evaporative cooling and optimization method, which is applied in the direction of cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve the problems of inapplicable parameter selection, failure to play the advantages of immersion evaporative cooling technology, etc., and achieve the reduction of external dimensions , Improve power density and reduce manufacturing cost

Active Publication Date: 2012-07-18
MCC XIANGTAN HEAVY IND EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For motors using evaporative cooling medium as new insulation material, the selection of parameters in the existing electromagnetic design is not applicable, and the advantages of immersion evaporative cooling technology have not been brought into play

Method used

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  • Motor employing immersion type evaporative cooling and structure optimization method thereof
  • Motor employing immersion type evaporative cooling and structure optimization method thereof
  • Motor employing immersion type evaporative cooling and structure optimization method thereof

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Embodiment Construction

[0037] The core of the present invention is to provide a motor using immersion evaporative cooling and its structural optimization method, which fully utilizes the insulation and heat transfer performance of the evaporative cooling medium, takes advantage of the immersion evaporative cooling technology, and improves the power density of the motor , so that under the same voltage level and capacity, the optimized motor and its main components are greatly reduced in size, thereby reducing the manufacturing cost of the motor. The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] Without loss of generality, this implementation mode takes an asynchronous motor as a specific example for description. It should be understood that, based on the common knowledge of those skilled in the art, the technical solution provided by the present invention is also applicable to a horizontal motor using immersion e...

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Abstract

The invention discloses a structure optimization method for a motor employing immersion type evaporative cooling. The method comprises the following steps of: correspondingly reducing the thickness of a main insulating layer of a stator by 50 to 60 percent, and correspondingly improving the current density of the stator by twice to 2.5 times by taking an air-cooled motor with the same voltage grade and the same capacity as a reference; and obtaining the minimum shape data of each part structure according to combinational calculation results obtained by different values of each parameter on the basis of the thickness of the main insulating layer of the stator and the current density of the stator under conditions which are consistent with security specifications about the motor in national standard, wherein the parameters comprise air gap flux density, the number of turns of a stator winding, the internal and external diameters of the stator and a rotor, and the heights and widths of a stator slot and a rotor slot. By the method, the advantages of an immersion type evaporative cooling technology are fully utilized, the overall dimensions of the motor and each main part are greatly reduced under the same voltage grade and the same capacity, and manufacture cost is decreased. On such a basis, the invention also provides the motor employing the immersion evaporative cooling.

Description

technical field [0001] The invention relates to a motor, in particular to a motor using immersion evaporative cooling and a structure optimization method thereof. Background technique [0002] Electric motor is a kind of driving equipment commonly used in industrial production. For example, in large-scale industrial production such as smelting, mining, and mechanical processing, asynchronous motors are often used to provide power for pumps, fans, or compressors. [0003] At present, electromagnetic design software is mainly used to optimize the design of electric motors to achieve the purpose of improving its reliability and reducing production costs, and the stator current density and air gap flux density are two important parameters for electromagnetic design. [0004] For low-voltage small and medium-sized motors (such as motors with rated working voltage below 600 volts), the required insulation level is very low, and the stator does not need to be covered with main ins...

Claims

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Application Information

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IPC IPC(8): H02K9/20H02K9/197
Inventor 肖富凯栾茹
Owner MCC XIANGTAN HEAVY IND EQUIP
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