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Scroll compressor and air conditioner

A technology of scroll compressors and compression chambers, applied in machines/engines, rotary piston machinery, mechanical equipment, etc., can solve problems such as increasing compressor compression power, affecting compressor performance, reducing production efficiency, etc., to achieve avoidance performance The effect of reduction, low cost, and low processing technology requirements

Active Publication Date: 2016-08-03
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, setting up two fluid connection passages on the bottom plate of the movable scroll, on the one hand, increases the manufacturability of processing, reduces production efficiency and increases costs; on the other hand, the two back pressure connection passages allow medium-pressure gas to flow back into the compression chamber The angle will increase, which will increase the compression power of the compressor and affect the performance of the compressor

Method used

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  • Scroll compressor and air conditioner
  • Scroll compressor and air conditioner
  • Scroll compressor and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as Figure 1 to Figure 4 As shown, the movable scroll 2 is provided with a third communication hole 2e communicating with the medium-pressure fluid passage 2b in the axial direction. The third communication hole 2e is intermittently connected to the outer line side compression chamber 3b during the operation cycle. The first groove 1b communicates with the second groove 1c. The medium pressure fluid passage 2b of the movable scroll 2, the first communication hole 2c, the second communication hole 2d, the third communication hole 2e, the sealing device 2g and the first groove 1b and the second groove 1c of the fixed scroll 1 constitute The back pressure, oil circuit connection passage. The compression starts when the inner profile of the orbiting scroll and the outer profile of the fixed scroll are closed, and the functions and implementation methods of each component will be described below.

[0043] As the orbiting scroll 2 proceeds, when the compression cavity ...

Embodiment 2

[0045] refer to figure 1 , Figure 5 to Figure 7 Compared with Embodiment 1, the movable scroll 2 reduces the design of the third communication hole 2e, and increases the fourth communication hole 2h (through hole) on the bottom plate of the movable scroll. Compared with the first groove 1d on the fixed scroll 1, the implementation Example 1 does not communicate with the second groove 1c, but increases the angle of communication with the fourth communication hole 2h.

[0046] The movable scroll 2 is also provided with a fourth communication hole 2h communicating with the back pressure chamber 3c in its axial direction, and the first groove 1b is intermittently connected with the first communication hole 2c and the fourth communication hole 2h during the operation cycle. connected. The fourth communication hole also intermittently communicates with the outer line side compression chamber 3b, and the first groove 1b does not communicate with the second groove 1c.

[0047] The...

Embodiment 3

[0050] refer to figure 1 , Figure 8 to Figure 10 Compared with Embodiment 1, the moving scroll 2 has a reduced design of the third communication hole 2e, and increased the high-pressure oil drainage hole 2i, the first oil drainage channel 2j and the oil drainage hole 2k. The shape of the first groove 1b is changed on the fixed scroll 1 to ensure the connection with the communication hole of the moving disk according to the design angle, and the oil communication groove 1f is added.

[0051] The movable scroll 2 is also provided with a high-pressure oil drainage hole 2i, a first oil-guiding passage 2j and an oil-guiding hole 2k, and the high-pressure oil drainage hole 2i is connected to the oil supply system of the compressor and the first oil-guiding passage 2j, respectively. An oil introduction channel 2j communicates with the oil introduction hole 2k, and the oil introduction hole 2k intermittently communicates with the outer line side compression chamber 3b during the ope...

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Abstract

The invention provides a scroll compressor and an air conditioner. The profile structure of a static scroll is more than the 180-degree non-symmetric profile structure of an orbiting scroll; the orbiting scroll is provided with a back pressure chamber; scroll wraps of the static scroll and the orbiting scroll form an interior wiring side compression chamber and an external wiring side compression chamber, and a suction cavity is formed between the static scroll and the orbiting scroll; a first groove and a second groove communicated with the back-pressure chamber are formed in the static scroll; a medium-pressure pathway is arranged on the radial direction of the orbiting scroll, and a first communicating hole and a second communicating hole are formed in the axial direction of the orbiting scroll and are communicated with the medium-pressure pathway; the first communicating hole is used for intermittently communicating the first groove, and the second communicating hole is used for intermittently communicating the internal wiring side compression chamber; the back-pressure chamber is intermittently communicated with the internal wiring side compression chamber and the external wiring side compression chamber, or the oil supply system of the compressor is intermittently communicated with a suction cavity; and the internal wiring side compression chamber and the external wiring side compression chamber are never communicated with each other, so that sufficient oil supply can be guaranteed under different working conditions.

Description

technical field [0001] The invention relates to the refrigeration field, in particular to a scroll compressor and an air conditioner. Background technique [0002] Scroll compressors are widely used in general refrigeration and air-conditioning systems because of their simple structure, small size, light weight, and high efficiency. Among them, the sealing between the dynamic and static scrolls plays a vital role in the performance of the compressor. The main factor affecting the sealing is the sealing back pressure between the dynamic and static scrolls. Whether the design of the back pressure is reasonable directly affects the compression. The performance of the machine under different working conditions. The secondary factor is the design of the oil circuit between the dynamic and static scrolls. The amount of oil introduced into the pump body will affect the formation of the oil film between the dynamic and static scrolls, and then affect the leakage between the dynamic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/02F04C29/02F04C27/00
Inventor 李冬元胡余生单彩侠康小丽刘双来陈肖汕刘韵律刚
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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