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Refrigeration compressor

A technology for refrigeration compressors and compression pumps, which is applied in the control of mechanical energy, electromechanical devices, mechanical equipment, etc., can solve the problems of low power factor, large power grid impact force, large starting current, etc., and achieves the effect of simple and compact structure.

Active Publication Date: 2009-03-25
何世政 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of motor has the disadvantages of large starting current, large impact on the power grid, difficult starting, unsatisfactory starting torque, low power factor and difficult speed regulation. The starting current is about 5-6 times the rated current.

Method used

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Examples

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Embodiment Construction

[0017] specific implementation plan

[0018] In this example, the refrigeration compressor uses a permanent magnet switched reluctance speed regulating motor as the driving device. The specific structure is as follows:

[0019] The casing 14 is a cylindrical pressure vessel made of A3 steel plate. A compression pump 2 is installed in the lower part of the inner cavity of the cylindrical casing. Liquid separator 12 is connected.

[0020] Motor 1 is a three-phase permanent magnet switched reluctance speed motor, see figure 2 , the stator 3 is made of laminated ordinary silicon steel sheets, and is provided with 6 inner salient poles, and the salient poles are equipped with driving windings 5 ​​wound with enameled wires, and the connection methods are A-A', BB', C- C' symmetrical connection, series connection or parallel connection, two pieces of permanent magnets with high magnetic energy product and linear demagnetization curve made of rare earth NdFeB permanent magnet mate...

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Abstract

A refrigerating compressor, is made of a motor (1), a compression pump(2) driving connection with driven axis(7) of electric engine and gas-liquid separator connecting compressor pump, the said electric engine(1) and compressor pump are sealed in cavity of shell(14), it is characterized in that said electric engine is a switch magnetic drag engine, the magnet limbs of the stator(3) is equipped with loop(5),and rotor(6) is a salient pole structure. The rotor phase sensor(8,9) wich is made of resistant high temperature and high pressure material is equipped in shell cavity, the rotor phase sensor connects main control driving circuit. The advantages of the invention are simple and compaction structure , high efficient and energy saving. The further scheme of the invention is that adopting the rotor phase sensor can work in high temperature and pressure vessel, between the rotor salient pole equipped with a balance block can make the rotor rotate more smooth and stable to reduce resistance caused by rotation of rotor in vessel.

Description

technical field [0001] The invention belongs to a compression device, in particular to a compressor used in refrigeration devices such as refrigerators, cold storage or air conditioners. Background technique [0002] Conventional single-phase, three-phase motors or DC motors are mostly used as drive devices for pressure vessels in existing refrigeration devices such as air conditioners, refrigerators, and cold storage. This type of motor has the disadvantages of large starting current, large impact on the power grid, difficult starting, unsatisfactory starting torque, low power factor and difficult speed regulation. Its starting current is about 5-6 times the rated current. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a refrigeration compressor with simple structure, high efficiency and energy saving. [0004] The technical scheme that solves the above problem is (referring to embodiment figure): the present ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C28/06H02K29/06
CPCH02K1/246H02K7/04F04C23/008F04C29/0085
Inventor 何世政宋添发张文祐
Owner 何世政
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