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Scroll-type compressor as well as floating mode for moving eddy disk and oil path control mode

A technology of scroll compressors and moving scrolls, which is applied in the field of scroll compressors, can solve problems such as reducing compression efficiency, and achieve the effects of reduced frictional power consumption, good durability, and simple and reasonable structure

Inactive Publication Date: 2008-09-03
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The intermediate pressure is used as the back pressure, which can effectively alleviate the variation of the pressing force due to the change of the working conditions, and is conducive to the stable operation of the compressor. However, there is a problem of heat and mass transfer between the intermediate chamber and the back pressure chamber, which reduces the pressure to a certain extent. compression efficiency

Method used

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  • Scroll-type compressor as well as floating mode for moving eddy disk and oil path control mode
  • Scroll-type compressor as well as floating mode for moving eddy disk and oil path control mode
  • Scroll-type compressor as well as floating mode for moving eddy disk and oil path control mode

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0024] see image 3 In this scroll compressor, the main housing 10, the upper housing 1 and the lower housing 14 form a closed space through ring welding. The partition plate 2 and the upper casing 1 form a closed high-pressure area. The upper frame 7 and the main shell are welded together with the upper shell 1 through interference fit, so that a closed area is formed between the upper frame 7 and the partition plate 2, and the low-pressure fluid flows from the evaporator through the suction pipe 20 into the area. The movable scroll 22 revolves under the drive of the crankshaft 18 , and sucks the low-pressure fluid flowing in through the suction pipe 20 into the low-pressure chamber 26 . With the rotation of the crankshaft 18, the compression chamber formed between the movable scroll 22 and the fixed scroll 25 through the meshing of the scroll teeth 23 and 24 gradually compresses the low-pressure fluid into a high-pressure fluid, and in the central chamber 28 exhaust press...

no. 2 example

[0031] see Figure 5 , A high-pressure area is formed between the upper frame 7 and the upper casing 1 to accommodate the high-pressure fluid discharged from the exhaust port 30 of the fixed scroll 25 . Open grooves on the outer edges of the fixed scroll 25 and the upper frame 7 to guide the high-pressure fluid on the back side of the movable scroll to the high-pressure area where the motor is located. A sealing groove is provided on the upper frame to divide the back area of ​​the movable scroll 22 into different pressure zones. A communication hole 6 is provided on the upper frame, and a medium-pressure area is formed in the back area 21 of the movable scroll 22 by using the drainage principle of high-speed fluid. Furthermore, the medium pressure is used to overcome the gas separation force borne by the movable scroll 22 during operation to realize the floating of the movable scroll 22, reduce the frictional power consumption between the movable scroll 22 and the upper fram...

no. 3 example

[0034] see Image 6 , A suction port is provided on the upper bracket, and a flange end cover 44 is used on the back of the fixed scroll 25 to seal the pit on the back of the fixed scroll. When the high-pressure gas is discharged from the exhaust port 30 on the back of the fixed scroll 25, it is directly discharged to the high-pressure area where the motor is located along the first gas guide channel 33.1 and the second gas guide channel 33.2. The method of opening a connecting hole on the upper frame is the same as Figure 4 , its working principle is the same as Figure 5 mentioned.

[0035] As mentioned above, the upper frame structure of the scroll compressor in the present invention, since a communication hole is provided between the guide passage of high-pressure gas and the pressure area on the back of the movable scroll, it can be installed on the back of the movable scroll. A medium-pressure area is formed, and because of the pressure difference between the two end...

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PUM

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Abstract

The present invention relates to a scroll compressor and floating style of vortex disk and oil circuit control type. The scroll compressor comprises a static vortex disk and a dynamic vortex disk joggled for each other, a vent is provided on center back of the static vortex disk, a center cavity between of the static vortex disk and the dynamic vortex disk communicate the vent, an upper bracket is the main bracket of the crankshaft. A compressor hull comprises an upper hull, a main hull and a lower hull, the region of the motor and the oil pool is unaided pressure region around by the main hull and the upper racket, an airproof groove on the upper surface of the upper bracket divides the dynamic vortex disk to different back pressure regions, a guide channel of high pressure gas on the upper bracket communicates region of motor lied, an intercommunicating pore is provided on high back pressure region between the guide channel and the dynamic vortex disk. The present invention has simple and reasonable structure, convenient process and good wear capability.

Description

technical field [0001] The invention relates to a scroll compressor, in particular to a scroll compressor and its movable scroll floating mode and oil circuit control mode. Background technique [0002] Existing scroll compressors include a fixed scroll with a scroll crimp on the bottom plate and a movable scroll with a scroll crimp on the end plate, and the two scrolls mesh with each other Configuration that compresses fluid entering a scroll compressor by sequentially narrowing a plurality of compression chambers formed between mutual curls. In order to improve the volumetric efficiency of the scroll compressor and reduce friction loss, generally speaking, floating the movable scroll can solve the above problems well. The back pressure of the movable scroll to overcome the separation force can be the intermediate pressure drawn from the intermediate compression chamber, which is generally a low back pressure structure; it can also be a high pressure, that is, the exhaust ...

Claims

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Application Information

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IPC IPC(8): F04C29/00F04C29/12F04C18/02F04C28/00
Inventor 邵海波
Owner MIDEA GRP CO LTD
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