CN103939355A - Compressor exhaust device and compressor provided with same - Google Patents
Compressor exhaust device and compressor provided with same Download PDFInfo
- Publication number
- CN103939355A CN103939355A CN201410171761.3A CN201410171761A CN103939355A CN 103939355 A CN103939355 A CN 103939355A CN 201410171761 A CN201410171761 A CN 201410171761A CN 103939355 A CN103939355 A CN 103939355A
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- slide block
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- relief opening
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Abstract
The invention discloses a compressor exhaust device and a compressor provided with the same. The compressor exhaust device comprises a cylinder and an exhaust channel, wherein the exhaust channel comprises an exhausting opening; at least one radial sliding block channel is formed in the wall of the cylinder; a sliding block is arranged in the sliding block channel in a sliding manner; a thrust spring is arranged at one end of the sliding block, which is away from the exhaust opening; the sliding block plugs the exhaust opening under the thrust of the spring; a spacing structure used for preventing the sliding block from moving into the cavity of the cylinder through the exhaust opening is arranged in the middle part of the sliding block channel. According to the compressor exhaust device, the clearance volume of the compressor is reduced during exhausting and the efficiency is increased; meanwhile, the noise is reduced and the stability is improved; besides, the spacing structure is arranged in the middle part of the sliding block channel, so that the damage of the sliding block and a roller caused by collision between the sliding block and the roller in the cylinder cavity is avoided and the reliability is improved.
Description
Technical field
The present invention relates to a kind of compressor, relate in particular to a kind of compressor air exhausting unit.
Background technique
Compressor is that in refrigerator, air-conditioning system, compression refrigerant makes it participate in the nucleus equipment of circulation, rotary compressor is a kind of conventional compressor, rotary compressor rotary compressor generally comprises rotary compressor and oscillating compressor, the work of revolution compression refrigerant is to complete in the sealing cylinder chamber of compressor, upper flange, lower flange are arranged on cylinder two ends and enclose sealing cylinder chamber, being compressed in of gas carried out in cylinder chamber, and the pressurized gas in cylinder chamber is discharged cylinder chamber by venting gas appliance in the time of suitable high pressure.
The venting gas appliance of the rotary compressor of prior art conventionally adopts and offer relief opening on upper and lower flange, and by fixed thereon to valve block and lift of valve plate snubber, have angular cut coordinate with relief opening at cylinder.This venting gas appliance utilizes the pressure of cylinder interior to back down valve block to make the refrigeration agent exhaust after compressor go out cylinder chamber, and utilize lift stopper to limit the lift of valve block, in the time that inner pressure of air cylinder reduces, valve block recovers to cover the state of relief opening under the resilient force of self.This venting gas appliance is in the time that its exhaust finishes, in relief opening and angular cut space, (clearance volume) also has residual high pressure gas, reduced the efficiency of compressor, valve block is also the one of the main reasons that compressor noise produces to repeatedly patting of relief opening.
Summary of the invention
Based on this, be necessary for traditional exhaust device of rotary compressor clearance volume large.Produce the very few excessive problem of exhaust resistance that causes of larger beating noise and venting gas appliance quantity, a kind of exhaust device of rotary compressor overcoming the above problems is provided.
For reaching above object, adopt following technological scheme:
A kind of compressor air exhausting unit, comprises cylinder, exhaust passage, and described exhaust passage comprises relief opening; It is characterized in that:
On the cylinder wall of described cylinder, be at least provided with a slide block passage radially;
In described slide block passage, slide a slide block is set, described slide block is provided with a thrust spring away from one end of described relief opening, and under described spring thrust effect, described slide block stops up described relief opening;
Described slide block channel middle is also provided with the limit structure that stops described slide block to move to the cylinder chamber inside of described cylinder through described relief opening.
In an embodiment, described slide block is identical with the external diameter of described relief opening near the external diameter of one end of relief opening therein.
In an embodiment, described slide block passage comprises first passage and second channel therein, and the external diameter of described first passage is greater than the external diameter of described second channel, and described limit structure is arranged between described first passage and described second channel; On described slide block, be provided with the projection coordinating with described limit structure.
In an embodiment, described limit structure is that line contacts or face contact with described projection therein.
In an embodiment, described limit structure is to be that leg-of-mutton polygonal excises along the axial-rotation of described the first exhaust passage the conical surface forming for a week at described first passage and described second channel intersection by a cross section therein.
In an embodiment, described limit structure is to excise along the axial-rotation of described first passage the face forming for a week by straight line at described first passage and described second channel intersection therein.
In an embodiment, it is characterized in that therein, be also provided with limit spring, described limit spring is arranged between described projection and described limit structure.
In an embodiment, described limit structure is to be that trapezoidal polygonal excises along the axial-rotation of described first passage the boss forming for a week at described first passage and described second channel intersection by a cross section therein.
The invention provides a kind of compressor, include above-mentioned compressor air exhausting unit.
Compressor air exhausting unit of the present invention can reduce the clearance volume of compressor in exhaust process, improves the efficiency of compressor; Can avoid traditional compressor exhaust time, repeatedly pat the mechanicalness noise of generation; Be provided with limit structure in slide block channel middle in addition, can continue the cylinder chamber internal motion to cylinder by anti-limited slip block, avoided the roller of slide block and cylinder chamber inside collide and damage slide block and roller, improved the reliability of compressor.
Brief description of the drawings
Fig. 1 is compressor air exhausting unit structural representation in the present invention's one specific embodiment;
Fig. 2 is slide block structure schematic diagram in the present invention's one specific embodiment;
Fig. 3 is slide block channel design schematic diagram in the present invention's one specific embodiment;
Fig. 4 is slide block channel design schematic diagram in another specific embodiment of the present invention;
Fig. 5 is slide block channel design schematic diagram in another specific embodiment of the present invention;
Fig. 6 is compressor air exhausting unit structural representation in another specific embodiment of the present invention;
Fig. 7 is compressor air exhausting unit structural representation in another specific embodiment of the present invention.
Brief description of the drawings: 1, cylinder; 2, exhaust passage; 3, slide block passage; 31 first passages; 32, second channel; 33, holding space; 4, relief opening; 5, slide block; 51, projection; 6, thrust spring; 7, limit structure; 8, cylinder chamber; 9, roller; 10, limit spring; 11, upper flange; 12, lower flange.
Embodiment
For making technical solution of the present invention clearer, below in conjunction with drawings and the specific embodiments, the present invention is described in further details.
As shown in Figure 1, be the compressor air exhausting unit in one embodiment of the invention, comprise cylinder 1, exhaust passage 2, slide block passage 3, slide block 5, thrust spring 6, wherein exhaust passage 2 comprises relief opening 4.On the cylinder wall of cylinder 1, be provided with a slide block passage 3 radially, the interior slip of slide block passage 3 arranges a slide block 5, this slide block is provided with thrust spring 6 away from one end of relief opening 4, effect bottom slide block 5 at thrust spring 6 stops up relief opening 4, and the middle part of slide block passage 3 is also provided with the limit structure 7 that stops slide block 5 to move to cylinder chamber 8 inside of cylinder 1 through relief opening 4.
For fixing thrust spring 6, in the outer end of slide block passage 3, supporting base can be set, for thrust spring 6 is fixed.Alternatively, without polygamy part is set more in the situation that, support device that can be using the shell of compressor as thrust spring 6, is fixed thrust spring 6.
Under normality, slide block 5 makes slide block 5 stop up relief opening 4 under the thrust of thrust spring 6, is specially and makes slide block 5 be inserted in relief opening 4 near one end of relief opening 4 and stop up relief opening 4.When compressor air-discharging, cylinder 1 intakeport sucks gas, makes to reach certain pressure in cylinder chamber 8, promotes slide block 5 to external compression thrust spring 6, and now the relief opening 4 of compressor is opened, and gas enters into the outside exhaust in exhaust passage 2 through relief opening 4.After finishing Deng exhaust, slide block 5 again stops up relief opening 4 under the acting in conjunction of thrust spring 6 and pressure reduction.When venting gas appliance of the present invention can be avoided traditional compressor exhaust, valve block is patted the mechanicalness noise that relief opening produces repeatedly.
Owing to being provided with limit structure 7, slide block 5 is limited in limit structure 7 places away from one end of relief opening 4, anti-limited slip block 5 moves to the inside of cylinder chamber 8 through relief opening 4, ensure in the time that slide block 5 stops up relief opening 4, slide block 5 has a less distance near one end of relief opening 4 and the inwall of cylinder chamber 8, anti-limited slip block 5 collides and damages slide block and roller with the roller 9 of cylinder chamber 8 inside, has improved the reliability of compressor.In addition, because limit structure 7 is arranged on the middle part of cylinder 1, it is less that slide block 5 clashes into away from one end of relief opening 4 noise that limit structure 7 produces.
In order to reduce the clearance volume of venting gas appliance, the slide block 5 in the present invention can be inserted into and in relief opening 4, relief opening 4 stopped up and contact sealing with 4 of relief openings, fills up clearance volume.Preferably, slide block 5 is identical with the external diameter of relief opening 4 near the external diameter of one end of relief opening 4.
In the present embodiment, exhaust passage 2 is made up of the runner of always putting on flange 11 and being connected to the bottom of slide block passage 3 axially arranging on cylinder wall, and exhaust passage 2 also can be made up of the runner of always wearing flange 12 and being connected to the bottom of slide block passage 3 axially arranging on cylinder wall certainly.Alternatively, exhaust passage 2 also can be made up of the runner of always putting on flange 11, lower flange 12 and being connected to the bottom of slide block passage 3 axially arranging on cylinder wall.
For the convenient middle part at slide block passage 3 forms limit structure 7, as in Figure 3-5, slide block passage 3 comprises first passage 31 and second channel 32, and the external diameter of first passage 31 is greater than the external diameter of second channel 32, limit structure 7 be arranged on first passage 31 and second channel 32 between.By slide block passage 3 being arranged to two passages, be convenient to process limit structure 7, reduce difficulty of processing.Correspondingly, be provided with the projection 51 coordinating with limit structure 7 on slide block 5, this projection 51 is arranged on one end away from relief opening 4 on slide block 5, carries out spacingly by limit structure 7 to projection 51, and anti-limited slip block 5 moves to the inside of cylinder chamber 8.
Further, the projection 51 of limit structure 12 and slide block 5 contacts or face contact for line.
As shown in Figure 3, limit structure 7 is for being that triangle polygonal along the axial-rotation of first exhaust passage excise a conical surface one week forming with described second channel 32 intersections by a cross section at described first passage 31, and the projection 51 of slide block 5 is that line contacts with this conical surface.
As shown in Figure 4, limit structure 7 is to excise along the axial-rotation of described first passage the face forming for a week by straight line at described first passage 31 and described second channel 32 intersections, and the projection 51 of slide block 5 is face with limit structure 7 and contacts.
In order further to reduce exhaust noise, in another embodiment, compressor air exhausting unit is also provided with limit spring 10, and limit spring 10 is arranged between the projection 51 and limit structure 7 of slide block 5.Under normality, slide block 5 moves and is inserted into the interior obstruction relief opening 4 of relief opening 4 towards cylinder chamber 8 under the thrust of thrust spring 6; Meanwhile, limit spring 10 is subject to pushing of projection 51 and produces the power contrary with this thrust to stop slide block 5 to move forward, avoid slide block 5 to continue collide and damage slide block 5 and roller 9 with the roller 9 of cylinder chamber 8 inside towards cylinder chamber 8 motions, improved the reliability of compressor.In addition, owing to being provided with limit spring 10, can avoiding slide block 5 directly to clash into limit structure 7 away from one end of relief opening 4 and carry out spacing and produce noise, further reduce the exhaust noise of compressor.
Further, for effectively fixing limit spring 10, as shown in Figure 5, limit structure 12 is to be that trapezoidal polygonal excises along the axial-rotation of described first passage 31 boss forming for a week at described first passage 31 and described second channel 32 intersections by a cross section, boss provides holding space 33 for limit spring 10, avoids limit spring 10, owing to rocking to reduce, slide block 5 is carried out to spacing reliability.
In order to improve the exhaust efficiency of compressor, in another embodiment of the present invention, compressor air exhausting unit comprises many slide block passages and corresponding multiple relief openings with it.As shown in Figure 7, on the cylinder wall of cylinder 1, be provided with 2 slide block passages 3 radially, correspondingly on exhaust passage 2, be provided with 2 corresponding with it relief openings 4.On cylinder wall, multiple slide block passages and relief opening can be set on demand, share exhaust pressure, can reduce exhaust resistance, reduce energy loss, improve exhaust efficiency.
In another embodiment, provide a kind of compressor, comprised above-mentioned compressor air exhausting unit, and carried out exhaust by above-mentioned compressor air exhausting unit.
Venting gas appliance of the present invention can reduce the clearance volume of compressor in exhaust process, improves the efficiency of compressor; Can avoid traditional compressor exhaust time, valve block is patted the mechanicalness noise that relief opening produces repeatedly; Be provided with limit structure in slide block channel middle, can continue to cylinder chamber internal motion by anti-limited slip block, avoid the roller of slide block and cylinder chamber inside collide and damage slide block and roller, improved the reliability of compressor; Because limit structure is arranged on the middle part of cylinder, can reduce exhaust noise; On cylinder wall, can also arrange on demand multiple slide block passages and with it corresponding multiple relief openings carry out exhaust, shared exhaust pressure, can reduce exhaust resistance, reduce energy loss.
The above embodiment has only expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. a compressor air exhausting unit, comprises cylinder, exhaust passage, and described exhaust passage comprises relief opening; It is characterized in that:
On the cylinder wall of described cylinder, be at least provided with a slide block passage radially;
In described slide block passage, slide a slide block is set, described slide block is provided with a thrust spring away from one end of described relief opening, and under described spring thrust effect, described slide block stops up described relief opening;
Described slide block channel middle is also provided with the limit structure that stops described slide block to move to the cylinder chamber inside of described cylinder through described relief opening.
2. compressor air exhausting unit as claimed in claim 1, is characterized in that, described slide block is identical with the external diameter of described relief opening near the external diameter of one end of relief opening.
3. compressor air exhausting unit as claimed in claim 1, it is characterized in that, described slide block passage comprises first passage and second channel, and the external diameter of described first passage is greater than the external diameter of described second channel, and described limit structure is arranged between described first passage and described second channel; On described slide block, be provided with the projection coordinating with described limit structure.
4. compressor air exhausting unit as claimed in claim 3, is characterized in that, described limit structure is that line contacts or face contact with described projection.
5. compressor air exhausting unit as claimed in claim 4, it is characterized in that, described limit structure is to be that leg-of-mutton polygonal excises along the axial-rotation of described the first exhaust passage the conical surface forming for a week at described first passage and described second channel intersection by a cross section.
6. compressor air exhausting unit as claimed in claim 4, is characterized in that, described limit structure is to excise along the axial-rotation of described first passage the face forming for a week by straight line at described first passage and described second channel intersection.
7. the compressor air exhausting unit as described in claim 3-6 any one, is characterized in that, is also provided with limit spring, and described limit spring is arranged between described projection and described limit structure.
8. compressor air exhausting unit as claimed in claim 7, it is characterized in that, described limit structure is to be that trapezoidal polygonal excises along the axial-rotation of described first passage the boss forming for a week at described first passage and described second channel intersection by a cross section.
9. a compressor, is characterized in that, comprises the compressor air exhausting unit as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171761.3A CN103939355A (en) | 2014-04-25 | 2014-04-25 | Compressor exhaust device and compressor provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171761.3A CN103939355A (en) | 2014-04-25 | 2014-04-25 | Compressor exhaust device and compressor provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103939355A true CN103939355A (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410171761.3A Pending CN103939355A (en) | 2014-04-25 | 2014-04-25 | Compressor exhaust device and compressor provided with same |
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| CN (1) | CN103939355A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240278A (en) * | 2015-11-12 | 2016-01-13 | 武汉格瑞拓机械有限公司 | Oil-gas separator for biogas screw compressor unit |
| CN106555740A (en) * | 2016-11-17 | 2017-04-05 | 珠海凌达压缩机有限公司 | Compressor air-discharging structure and compressor |
| CN107642381A (en) * | 2017-09-27 | 2018-01-30 | 重庆华稷新能源科技有限公司 | A kind of rolling-rotor expanding machine or compressor |
| CN110454365A (en) * | 2019-08-14 | 2019-11-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration equipment with it |
| CN110805555A (en) * | 2019-10-21 | 2020-02-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body structure, compressor, air conditioner |
| CN111963432A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN111963433A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN111963435A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
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| JPS59208195A (en) * | 1983-05-11 | 1984-11-26 | Mitsubishi Electric Corp | Construction of discharge valve of compressor |
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| JP3350276B2 (en) * | 1994-12-28 | 2002-11-25 | 東芝キヤリア株式会社 | Rotary compressor |
| US20020187050A1 (en) * | 2001-06-11 | 2002-12-12 | Bristol Compressors, Inc. | Compressor with a capacity modulation system utilizing a re-expansion chamber |
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| CN203926029U (en) * | 2014-04-25 | 2014-11-05 | 珠海凌达压缩机有限公司 | Compressor air exhausting unit and there is its compressor |
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Patent Citations (7)
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| JPS59208195A (en) * | 1983-05-11 | 1984-11-26 | Mitsubishi Electric Corp | Construction of discharge valve of compressor |
| JP3350276B2 (en) * | 1994-12-28 | 2002-11-25 | 東芝キヤリア株式会社 | Rotary compressor |
| JPH094580A (en) * | 1995-06-16 | 1997-01-07 | Dia Shinku Kk | Screw vacuum pump |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240278A (en) * | 2015-11-12 | 2016-01-13 | 武汉格瑞拓机械有限公司 | Oil-gas separator for biogas screw compressor unit |
| CN106555740A (en) * | 2016-11-17 | 2017-04-05 | 珠海凌达压缩机有限公司 | Compressor air-discharging structure and compressor |
| CN106555740B (en) * | 2016-11-17 | 2018-11-23 | 珠海格力电器股份有限公司 | Compressor air-discharging structure and compressor |
| CN107642381A (en) * | 2017-09-27 | 2018-01-30 | 重庆华稷新能源科技有限公司 | A kind of rolling-rotor expanding machine or compressor |
| CN110454365A (en) * | 2019-08-14 | 2019-11-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration equipment with it |
| CN110805555A (en) * | 2019-10-21 | 2020-02-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body structure, compressor, air conditioner |
| CN110805555B (en) * | 2019-10-21 | 2022-04-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body structure, compressor, air conditioner |
| CN111963432A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN111963433A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN111963435A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN111963435B (en) * | 2020-07-24 | 2022-08-05 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
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Application publication date: 20140723 |