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Motor and its screw compressor

A technology of guide bars and rotor cores, which is applied in the field of compressor equipment, can solve the problems of motor impacting grid equipment, etc., and achieve the effect of reducing switching current and weakening residual voltage after power failure

Active Publication Date: 2021-10-08
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a motor and a screw compressor with it, so as to solve the problem in the prior art that the residual voltage of the motor will impact the power grid equipment

Method used

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  • Motor and its screw compressor
  • Motor and its screw compressor
  • Motor and its screw compressor

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Embodiment Construction

[0033] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0034] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0035] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish simila...

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Abstract

The invention provides a motor and a screw compressor having the same. The motor includes a rotor core, and a rotor slot is arranged on the rotor core. The notch of the rotor slot is opened on the outer edge of the rotor core. The bottom of the rotor slot is set opposite to the notch. The first side wall and the second side wall of the rotor slot; the first guide bar group, the first guide bar group is connected with the first side wall; the second guide bar group, the second guide bar group is connected with the second side wall, and the second guide bar group is connected with the second guide bar group. A set of bars is arranged at a distance from a second set of bars. By arranging the guide bar assembly in the rotor slot, the power-off residual voltage of the motor during switching can be effectively weakened, thereby reducing the switching current of the motor, and avoiding the damaging impact of the motor on the power grid and electrical equipment during the starting and switching process.

Description

technical field [0001] The invention relates to the technical field of compressor equipment, in particular, to a motor and a screw compressor having the same. Background technique [0002] Screw compressors are widely used in mining, chemical industry, power, metallurgy, construction, machinery, refrigeration and other industrial sectors, gradually replacing other types of compressors in a wide range of capacity and working conditions. Statistics show that worldwide, the sales volume of screw compressors has accounted for 80% of all volumetric compressor sales, and 50% of all operating volumetric compressors are screw compressors. In my country, due to the relatively short development history of screw compressors, the above-mentioned proportions are about 40% and 15% respectively. In the future, the market share of screw compressors will continue to expand, especially oil-free screw air compressors and various screw process compressors will achieve faster development. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/26H02K3/28H02K3/12H02P1/32H02K17/16F04C23/02
CPCF04C23/02H02K1/265H02K3/12H02K3/28H02K17/165H02K2213/03H02P1/32
Inventor 刘思苑卢素华沈静文韩允梅韦松赖涛
Owner GREE ELECTRIC APPLIANCES INC
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