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scroll compressor

A scroll compressor and stationary scroll technology, applied in the field of compressors, can solve problems such as unfavorable lubricating oil passage, increased processing difficulty, and pores easily blocked by impurities.

Active Publication Date: 2018-04-27
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The inventors found that there are at least the following problems in the prior art: the prior art throttles back pressure by processing slender pores, which increases the difficulty of processing on the one hand, and on the other hand, the pores are easily blocked by impurities And it is not conducive to the passage of lubricating oil

Method used

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Embodiment 2

[0054] see Figure 3a to Figure 3c , the technical solution of the second embodiment is different from the technical solution of the above-mentioned first embodiment as follows: in this embodiment, the sub-channel 108 is only provided on the circumferential edge of the fixed scroll 3 .

[0055] see Figure 3a to Figure 3c , the sub-channel 108 includes a first throttling groove 301 provided on the peripheral edge of the fixed scroll 3 . The first throttle groove 301 is provided inside the fixed scroll 3 and the arc of the first throttle groove 301 is consistent with the arc of the fixed scroll 3 . The peripheral edge of the fixed scroll 3 is a first boss 303 , and the first throttle groove 301 is provided inside the first boss 303 . The channel 100 further includes a first introduction hole 302 provided in the fixed scroll 3 and a second introduction hole 102 provided in the bracket 1 . The fluid flows to the back pressure chamber 9 via the exhaust chamber 6 , the first int...

Embodiment 3

[0058] see Figures 4a to 4c , the technical solution of the third embodiment is different from the technical solution of the above-mentioned first embodiment as follows: In this embodiment, the sub-channel 108 is only provided on the circumferential edge of the bracket 1 . Figure 4c The middle arrows illustrate the fluid flow paths that introduce back pressure.

[0059] like Figures 4a to 4c As shown, the sub-channel 108 includes a second throttling groove 101 arranged on the circumferential edge of the bracket 1 , the second throttling slot 101 is arranged inside the bracket 1 and the arc of the second throttling slot 101 is consistent with that of the bracket 1 . The peripheral edge of the bracket 1 is a second boss 103 , and the second throttle groove 101 is arranged inside the second boss 103 . The channel 100 further includes a first introduction hole 302 provided in the fixed scroll 3 and a second introduction hole 102 provided in the bracket 1 . The fluid flows to...

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Abstract

The invention discloses a scroll compressor, and relates to the field of compressors. The machining difficulty of the scroll compressor is reduced. The scroll compressor comprises an air exhaust cavity and a backpressure cavity; a channel for communicating the backpressure cavity with the air exhaust cavity is formed between the backpressure cavity and the air exhaust cavity, and the channel is constructed to enable the flowing direction of fluid flowing into the channel to be changed by at least one time in the channel; by the adoption of the technical scheme, the channel for communicating the backpressure cavity with the air exhaust cavity is formed between the backpressure cavity and the air exhaust cavity, the positions for machining the channel are many, space is large, and the machining difficulty of the scroll compressor can be reduced; after the fluid flows into the channel, on one hand, the fluid collides with the inner wall of the channel, energy is consumed, and therefore the fluid flowing speed is reduced, and the magnitude of the pressure of the fluid introduced into the backpressure cavity is reduced; and on the other hand, the channel of the structure can be made to be longer, and therefore the throttling effect is ensured.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a scroll compressor. Background technique [0002] In a scroll compressor, the orbiting scroll and the fixed scroll mesh to form several compression chambers. The pressure of each compression chamber rises during the compression process, thereby generating a gas force that separates the orbiting scroll from the stationary scroll. In the prior art (such as the patent documents of application publication numbers CN102308093A and US6872063), in order to suppress the separation between the orbiting scroll and the fixed scroll, a part of the high-pressure gas (including lubricating oil) in the compression chamber is usually depressurized by throttling. Introduce the back of the movable scroll to form a back pressure and press the movable scroll and the fixed scroll together. Since the excessive back pressure will increase the friction and wear between the movable scroll and the stationary...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02F04C29/02
CPCF04C18/0215F04C29/028
Inventor 刘双来康小丽单彩侠律刚陈肖汕马英超刘韵
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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