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Scroll compressor and air conditioner adopting scroll compressor

A technology for scroll compressors and air conditioners, which is applied in the field of compressors, can solve problems such as liquid impact damage to parts of the pump body, and achieve the effect of improving the operation reliability of the whole machine and reducing the risk of liquid absorption

Pending Publication Date: 2020-02-07
ZHUHAI LANDA COMPRESSOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing electric scroll compressors are generally installed in the form of horizontal installation of the pump body, which can reduce the height of the whole machine and improve stability, but there are also certain limitations. The limitation is mainly that when the pump body is installed horizontally, the suction of the pump body The air position is located near the lower side of the whole machine after installation. During the operation of the compressor, when the suction superheat of the whole machine is low, it is very easy to cause liquid refrigerant and refrigerated oil to flow from the ring groove along the circumferential distribution of the bracket. Enter the pump body in the axial direction, so that the pump body absorbs liquid refrigerant to run, resulting in abnormal liquid impact damage to the parts of the pump body

Method used

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  • Scroll compressor and air conditioner adopting scroll compressor
  • Scroll compressor and air conditioner adopting scroll compressor
  • Scroll compressor and air conditioner adopting scroll compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A scroll compressor, by rationally designing the gas-liquid channel of the bracket, the risk of liquid absorption in the pump body is greatly reduced, and the operation reliability of the whole machine is improved, such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, specifically set to the following structure:

[0037] The scroll compressor introduced in this embodiment is obtained by improving the gas-liquid channel 2 on the basis of the existing scroll compressor.

[0038] Among them, unless otherwise specified, the opening area of ​​the gas-liquid passage is directly related to the air intake capacity. For the convenience of description, the existing gas-liquid passage 7 in this embodiment is an equal-diameter flow channel, and the following is also used as an equal-diameter flow channel for the vortex. Referring to the rotary compressor, the opening area of ​​the gas-liquid channel 2 directly represents its air intake capacity, and the larg...

Embodiment 2

[0042] This embodiment is further optimized on the basis of the above-mentioned embodiments, further to better realize the present invention, especially adopt the following configuration structure:

[0043]When the gas-liquid channel 2 is located above the liquid level of the refrigerant between the bracket 1 and the motor in the casing 5, in order to ensure the oil return lubrication of the pump body, at least one through oil return hole 3 is provided on the end surface of the bracket 1 . Generally speaking, in order to basically ensure the lubrication of the scroll compressor during operation, the oil return hole 3 should be at least partly below the liquid level of the refrigerant during operation of the compressor. Further, in order to make better use of the suction channel for oil return lubrication of the pump body, the number of oil return holes 3 can be appropriately increased according to the actual situation. The number is generally 1-10, and the specific number can b...

Embodiment 3

[0048] This embodiment is further optimized on the basis of embodiment 1 or 2, and further for better realization of the present invention, particularly adopts the following configuration structure:

[0049] Through the simulation test of multiple working conditions, it is concluded that the possible height of the liquid refrigerant is H, and the relationship between H and the diameter φ of the inner cavity of the shell satisfies: φ / 10<H<φ / 2. Then, the lowest opening height of the gas-liquid channel 2 is denoted as H1, and H1 satisfies: φ / 10≤H1≤φ / 2, wherein φ is the diameter of the inner cavity of the housing. Under this setting, it can be basically guaranteed that when the scroll compressor is running, the gas-liquid passage 2 is located above the lowest level of the refrigerant liquid level, so as to reduce the suction of liquid refrigerant by the pump body.

[0050] Preferably, in order to better adapt to different working conditions of different compressors, the H1 satisfi...

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Abstract

The invention relates to the technical field of compressors, provides a scroll compressor and an air conditioner adopting the scroll compressor, and solves the problem that a pump is prone to suckingliquid to run in the prior art. The scroll compressor comprises a bracket, the bracket is provided with at least one gas-liquid channel, and the minimum opening height of the gas-liquid channel is nolower than the minimum liquid level of a refrigerant between the bracket and a motor in a shell when the scroll compressor is in an operating state. The air conditioner adopts the scroll compressor. According to the scroll compressor, compared with the prior art, by designing the gas-liquid channel of the bracket reasonably, the liquid channel on the lower side of the compressor after mounting isshrunk, the risk of pump liquid sucking can be greatly reduced, and the operation reliability of the whole machine is improved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a scroll compressor and an air conditioner using the scroll compressor. Background technique [0002] Existing electric scroll compressors are generally installed in the form of horizontal installation of the pump body, which can reduce the height of the whole machine and improve stability, but there are also certain limitations. The limitation is mainly that when the pump body is installed horizontally, the suction of the pump body The air position is located near the lower side of the whole machine after installation. During the operation of the compressor, when the suction superheat of the whole machine is low, it is very easy to cause liquid refrigerant and refrigerated oil to flow from the ring groove along the circumferential distribution of the bracket. It enters the pump body in the axial direction, causing the pump body to absorb liquid refrigerant to run, resulting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/02F04C29/02F04C29/12F04C29/00
CPCF04C18/0215F04C29/00F04C29/02F04C29/12
Inventor 郑坚标吕浩福
Owner ZHUHAI LANDA COMPRESSOR
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