CN1017822B

CN1017822B - Sealed air-compressor with spacer layer

Info

Publication number: CN1017822B
Application number: CN 89105681
Authority: CN
Inventors: 陈启星; 罗丁; 罗启宇; 葛良凯
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-03-16
Filing date: 1989-03-16
Publication date: 1992-08-12
Also published as: JPH0347487A; CN1045633A

Abstract

The present invention relates to a sealed tank with an isolating layer, which separates a stator of a motor from a rotor of the motor. The stator is isolated in the sealed tank, and the rotor is sealed in the tank. The present invention is a compressor of a fully sealed type, which not only seals all mechanical motion in the tank but also overcomes the defects of traditional compressors of a fully sealed type, such as difficult disassembly, difficult exchange and difficult maintenance of stator windings, etc.

Description

Sealed air-compressor with spacer layer

The present invention belongs to the invention of electric field hereinafter to be referred as isolating compressor, and its structure characteristic is between the stator and rotor of motor a separation layer to be arranged.

Traditional hermetic compressor is that whole motor is contained in the hermetically sealed can, and this structure has following shortcoming: (1) coil burns out the back maintenance difficult; (2) the motor heat dispersion is poor, and the heat that is dispersed in the jar will consume extra merit; (3) the not corrosion of ability refrigeration agent, refrigeration oil of coil can't adopt ammonia to make refrigeration agent, and (4) will adopt ammonia to make refrigeration agent, and compressor just can not be made enclosed, because motor is enclosed in compressor seal jar the inside, will be very fast bad by ammonia corrosion.

The object of the present invention is to provide and a kind of motor stator is contained in the outer hermetic compressor of hermetically sealed can, it adopts the hermetically sealed can of band insulation layer structure, separation layer is the inwall part of stator iron core, it is again the part of hermetically sealed can, therefore stator coil can be designed in the hermetically sealed can outside, thereby have the following advantages: (1) need not the opening encapsulation jar can change, keep in repair staor winding; (2) improve the stator heat dispersion, improve working life, reduce power consumption; (3) refrigeration agent, the refrigeration oil in stator coil and the hermetically sealed can separates, and not corroded by it, therefore can adopt ammonia to make refrigeration agent, substituted freon.

The present invention is called the isolation compressor, it is made up of air pump and motor two major parts, air pump is made of driving mechanism, compression chamber, Aspirating valves and outlet valve, motor partly is made of stator and rotor, feature of the present invention is to have separation layer to separate between motor stator and the rotor, and separation layer is the inwall part of stator iron core, is again the part of hermetically sealed can, hermetically sealed can is enclosed in the inside together with motor rotor and other mechanical motion part, and with stator every in the hermetically sealed can outside.Accompanying drawing 3 and accompanying drawing 4 are schematic representation of separation layer, and 1 is the long strip magnet case, are made by the material of high magnetic conduction, low iron loss, for example make with silicon steel or form with ferrite sintered, and 2 is the magnetic gap part, are made by high magnetic resistance, big resistance, high-strength material.

Because stator coil is designed in the hermetically sealed can outside, some performances of compressor have so just been improved, as it is convenient to change, keep in repair staor winding, the stator perfect heat-dissipating, refrigeration agent, refrigeration oil in stator coil and the hermetically sealed can separate, not corroded by it, therefore can adopt ammonia to make refrigeration agent, substituted freon.

Embodiments of the invention are illustrated in conjunction with the accompanying drawings.

Fig. 1 is vertical cut-away view of compressor, Fig. 2 is the A-A sectional drawing of Fig. 1, Fig. 3 and Fig. 4 are the schematic representation of separation layer, among Fig. 1 and Fig. 2, stator iron core 3 and stator coil 4 are enclosed within on the separation layer ★, separation layer ★ by bar shaped magnet case 1 and not magnet case 2 constitute, rotor 6 is enclosed in the hermetically sealed can that is made of separation layer ★ and cover 7, rotor 6 drives air pump 9 work that are made of compression chamber, Aspirating valves, outlet valve by driving mechanism 8.

Claims

1, a kind of sealed air-compressor with spacer layer, it is made up of air pump and motor two major parts, air pump is by driving mechanism, compression chamber, Aspirating valves and outlet valve constitute, motor partly is made of stator and rotor, feature of the present invention is to have separation layer to separate between motor stator and the rotor, separation layer is the inwall part of stator iron core, it is again the part of hermetically sealed can, hermetically sealed can is enclosed in the inside together with motor rotor and other mechanical motion part, and with stator every in hermetically sealed can outside, separation layer is by high magnetic conduction, long strip magnet case and high magnetic resistance that the material of low iron loss is made, big resistance, the tank body that high-strength material is made is formed;

2, sealed air-compressor with spacer layer according to claim 1 is characterized in that the long strip magnetic conductor of separation layer partly adopts the long strip silicon steel plate packing to form;

3, sealed air-compressor with spacer layer according to claim 1 is characterized in that the bar shaped magnetic conductor of separation layer is made with silicon steel or formed with ferrite sintered.