CN105201853B - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN105201853B CN105201853B CN201410259581.0A CN201410259581A CN105201853B CN 105201853 B CN105201853 B CN 105201853B CN 201410259581 A CN201410259581 A CN 201410259581A CN 105201853 B CN105201853 B CN 105201853B
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- Prior art keywords
- cylinder
- rotary compressor
- air
- suction cavity
- valve element
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- 239000011148 porous material Substances 0.000 claims description 23
- 238000007906 compression Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract 4
- 230000010349 pulsation Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a rotary compressor, which comprises an upper flange, an air cylinder, a lower flange, a liquid distributor and a rotary compressor, wherein the upper flange, the air cylinder and the lower flange are sequentially connected, the liquid distributor is communicated with an air cylinder cavity of the air cylinder, and the rotary compressor also comprises: the one-way valve enables the cylinder cavity to be communicated with the liquid distributor when the cylinder is in a gas suction state; when the air cylinder finishes air suction, the one-way valve cuts off a passage communicating the air cylinder cavity with the liquid distributor. The one-way valve structure enables the rotary compressor to smoothly achieve air suction, and gas backflow can be prevented in the compression process, so that the purpose of effectively relieving airflow pulsation at an air suction port is achieved. After the airflow pulsation is reduced, the aerodynamic noise caused by the airflow pulsation is reduced, so that the aim of improving the noise of the compressor is fulfilled. Therefore, the rotary compressor of the invention has low noise and high energy efficiency.
Description
Technical field
The present invention relates to a kind of rotary compressor.
Background technology
Compressor noise problem is increasingly paid attention to by vast household electrical appliances manufacturer, and aerodynamic noise is compressor overall noise
In most important components.
As shown in figure 1, at present for rotary compressor, traditional aspirated mode is by the cylinder wall of suction side
One circular suction hole 40 ' is set, and the suction hole 40 ' connects with the pipe of knockout 30 ', passes through rotary motion of the roller in cylinder
So as to realize air-breathing, compression, the course of work being vented.Because suction hole 40 ' connects with knockout 30 ' always, therefore, when
Roller starts to compress at 0 ° (i.e. vane slot position of center line), and it is remote to reach suction hole 40 ' to the seal line of roller and cylinder inner wall
From that side of vane slot end points when, because cylinder interior gas pressure is high in this operating angle, knockout 30 ' holds gas pressure low,
Cylinder interior gas can be held to knockout 30 ' to be poured in down a chimney, and is commonly called as " flowing back ".Gas backstreaming phenomenon is more serious, and this position gas is got over
Acutely, caused gas noise is also bigger, while will have a strong impact on compressor efficiency.
The content of the invention
A kind of the present invention is intended to provide rotary compressor that noise is low, efficiency is high.
To achieve these goals, the invention provides a kind of rotary compressor, including upper flange, the gas being sequentially connected
Cylinder and lower flange, and the knockout being connected with the cylinder chamber of cylinder, in addition to：Check valve, when cylinder is in suction condition,
Check valve causes cylinder chamber to be connected with knockout；At the end of cylinder is in air-breathing, check valve disconnects cylinder chamber and knockout phase
The path of connection.
Further, check valve includes：Suction cavity, it is at least partially arranged in the cylinder wall of cylinder, suction cavity is
The blind hole that one end is connected with knockout；Pressure compensation opening, it is arranged in cylinder wall and connects cylinder chamber and suction cavity；Air-breathing
Pore, in the cylinder wall being arranged at and positioned at the lower section of pressure compensation opening and connection cylinder chamber and suction cavity；Valve element portion, can be past
It is movably arranged at again in suction cavity, when cylinder is in suction condition, valve element portion, which has, causes air-breathing pore and suction cavity
The first position being connected, valve element portion has the second for disconnecting air-breathing pore and suction cavity at the end of cylinder is in air-breathing
Put.
Further, valve element portion includes：Valve element；Elastic component, it is connected between the other end of suction cavity and valve element and causes
Valve element is arranged in suction cavity with being reciprocally moveable.
Further, elastic component is spring.
Further, suction cavity includes：First passage, the blind hole being connected for one end with knockout, pressure compensation opening
It is arranged at air-breathing pore on first passage；Second channel, it is connected between first passage and knockout, the axis of second channel
There is angle with the axis of first passage；Wherein, valve element portion is arranged in first passage.
Further, second channel is located at the lower section of air-breathing pore.
Further, first passage is vertically arranged.
Further, second channel transverse horizontal set and it is L-shaped with first passage.
Further, second channel is arranged in lower flange.
Further, one end of knockout is stretched into lower flange is connected with second channel.
Applying the technical scheme of the present invention, rotary compressor includes upper flange, cylinder and the lower flange being sequentially connected, with
And the knockout being connected with the cylinder chamber of cylinder.Rotary compressor also includes check valve, single when cylinder is in suction condition
To valve so that cylinder chamber is connected with knockout；At the end of cylinder is in air-breathing, check valve disconnects cylinder chamber and is connected with knockout
Logical path.One-way valve structures allow rotary compressor smoothly to realize air-breathing, and gas can be prevented in compression process
Backflow, so as to reach the purpose for effectively alleviating gas at air entry.After gas reduces, the gas as caused by gas
Moving noise can also decrease, so as to reach the target for improving compressor noise.Therefore, rotary compressor noise of the invention
It is low, efficiency is high.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the sectional view of the rotary compressor of prior art；
Fig. 2 shows the sectional view of the rotary compressor of the present invention；And
Fig. 3 shows enlarged drawing at Fig. 2 A.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figures 2 and 3, the invention provides a kind of rotary compressor.
Specifically, rotary compressor includes upper flange 10a, cylinder 20 and the lower flange 10b being sequentially connected, with cylinder 20
Cylinder chamber 21 knockout 30 and check valve that are connected.Wherein, the effect of check valve is, cylinder 20 is in suction condition
When, check valve causes cylinder chamber 21 to be connected with knockout 30；At the end of cylinder 20 is in air-breathing, check valve disconnects cylinder chamber 21
The path being connected with knockout 30.
One-way valve structures allow to smoothly realize air-breathing, and gas backstreaming can be prevented in compression process, so as to reach
Effectively alleviate the purpose of gas at air entry.After gas reduces, the aerodynamic noise as caused by gas also can be with
Reduction, so as to reach improve compressor noise target.The rotary compressor of the present invention overcomes to be compressed in the prior art
Aerodynamic noise caused by machine gas is big, the shortcomings that causing air-conditioning system total noise of centrifuge difference, can improve aerodynamic noise, improve
Complete machine tonequality, Improving The Quality of Products and CSAT.Therefore, rotary compressor noise of the invention is low, efficiency is high.
As shown in figure 3, check valve includes suction cavity 40, pressure compensation opening 50, air-breathing pore 60 and valve element portion 70.
Wherein, suction cavity 40 is at least partially arranged in the cylinder wall 22 of cylinder 20, suction cavity 40 be one end with
The blind hole that knockout 30 is connected, that is to say, that one end of suction cavity 40 is connected with knockout 30, suction cavity 40 it is another
One end is blind end.Pressure compensation opening 50 is arranged in cylinder wall 22, it is preferable that pressure compensation opening 50 is horizontally disposed and connects gas
Cylinder chamber 21 and suction cavity 40.In the cylinder wall 22 that air-breathing pore 60 is arranged at, it is preferable that the horizontally disposed simultaneously position of air-breathing pore 60
In the lower section of pressure compensation opening 50 and connection cylinder chamber 21 and with suction cavity 40.Valve element portion 70 is arranged on suction with being reciprocally moveable
In air cavity 40, the effect in valve element portion 70 is, when cylinder 20 is in suction condition, valve element portion 70, which has, causes air-breathing pore 60
The first position being connected with suction cavity 40, cylinder 20 be in valve element portion 70 at the end of air-breathing have disconnect air-breathing pore 60 with
The second place of suction cavity 40.
As shown in Figures 2 and 3, valve element portion 70 includes valve element 72 and elastic component 71.Elastic component 71 is connected to suction cavity 40
The other end and valve element 72 between so that valve element 72 is arranged in suction cavity 40 with being reciprocally moveable.
Preferably, valve element 72 can be cylindrical plug, and elastic component 71 can be spring.
As shown in figure 3, suction cavity 40 includes interconnected first passage 41, valve element portion 70 is arranged at first passage 41
In, first passage 41 is the blind hole that one end is connected with knockout 30, and spring is connected to the other end and plug of first passage 41
Between so that plug is arranged in first passage 41 with being reciprocally moveable.
Preferably, suction cavity 40 also includes second channel 42.First passage 41 is cavernous structure, the cavernous structure it is upper
End is blind hole, and bottom is connected with second channel 42.Pressure compensation opening 50 and air-breathing pore 60 are arranged at first passage 41
On, pressure compensation opening 50 is located at the top of air-breathing pore 60.Second channel 42 is connected between first passage 41 and knockout 30,
One end of second channel 42 is connected with one end of first passage 41, and the other end of second channel 42 is connected with knockout 30,
The axis of second channel 42 has angle with the axis of first passage 41, and second channel 42 is located at the lower section of air-breathing pore 60.
As shown in Figures 2 and 3, pressure compensation opening 50 is located at the top of air-breathing pore 60, and second channel 42 is located at air intake duct
The lower section in hole 60.
Wherein, first passage 41 is vertically arranged, and is easy to the setting of spring and the motion of plug.42 horizontal water of second channel
Flat setting is simultaneously L-shaped with first passage 41, and second channel 42 forms horizontal air-breathing hole path, the axis of second channel 42 and first
The axis of passage 41 is in 90 degree, and such design causes valve element portion to have mobile space, also so that more abundant during air-breathing.It is preferred that
Ground, second channel 42 are arranged in lower flange 10b.One end of knockout 30 is stretched into lower flange 10b to be connected with second channel 42
It is logical.During breathing process, plug is jacked up, and air-breathing pore 60 is connected with second channel 42.During compression process, gas compression causes
Gas enters pressure compensation opening 50, under the active force of gas pressure and spring so that plug down moves, and has blocked air-breathing
Pore 60, air-breathing pore 60 and path of the second channel 42 formed in breathing process are also just blocked.
The operation principle of the present invention is as follows：
When roller realizes breathing process since rotating 0 °, an envelope can be formed between roller, cylinder inner wall and slide plate
Vacuum area is closed, with the rotary motion of roller in cylinder, when the vacuum area connects with pressure controling hole, when valve element 72 is
End pressure P1 is negative pressure state on plug, and under plug end pressure P2 be " L " shape suction cavity in pressure of inspiration(Pi), P1<P2, plug
Sub motion upwards so that " L " suction cavity 40 is that horizontal suction hole is connected with air-breathing pore 60 on cylinder on lower flange, is realized
The function of air-breathing.
After cylinder suction muffler reaches maximum aspirated volume, with the rotary motion of roller, start to realize compression process, gas
Body, which compresses, causes end pressure P1 on plug>P2, plug are moved downward, and the passage of horizontal suction hole on cylinder is blocked, with laxative remedy
" L " suction cavity 40 does not connect on orchid so that by compressing high pressure gas without being flowed back at the low pressure of normal direction knockout 30 in cylinder, significantly
Improve gas situation at air entry.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
One-way valve structures allow rotary compressor smoothly to realize air-breathing, and can prevent gas from returning in compression process
Stream, so as to reach the purpose for effectively alleviating gas at air entry.It is pneumatic as caused by gas after gas reduces
Noise can also decrease, so as to reach the target for improving compressor noise.Therefore, rotary compressor noise of the invention
It is low, efficiency is high.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
1. a kind of rotary compressor, including upper flange (10a), cylinder (20) and the lower flange (10b) being sequentially connected, Yi Jiyu
The knockout (30) that the cylinder chamber (21) of the cylinder (20) is connected, it is characterised in that also include：
Check valve,
The check valve includes：
Suction cavity (40), it is at least partially arranged in the cylinder wall (22) of the cylinder (20), the suction cavity (40)
One end is connected with the knockout (30), the other end closing of the suction cavity (40)；
Pressure compensation opening (50), it is arranged in the cylinder wall (22) and connects the cylinder chamber (21) and suction cavity (40)；
Air-breathing pore (60), it is arranged in described cylinder wall (22) and positioned at the lower section of the pressure compensation opening (50) and connection
The cylinder chamber (21) and suction cavity (40)；
Valve element portion (70), it is arranged on being reciprocally moveable in the suction cavity (40), the cylinder (20) is in suction condition
When, the valve element portion (70) has the first position for make it that the air-breathing pore (60) is connected with the suction cavity (40),
At the end of the cylinder (20) is in air-breathing, the valve element portion (70), which has, disconnects the air-breathing pore (60) and the suction muffler
The second place of body (40)；
The valve element portion (70) includes：
Valve element (72)；
Elastic component (71), it is connected between the other end of the suction cavity (40) and the valve element (72) and causes the valve element
(72) it is arranged on being reciprocally moveable in the suction cavity (40).
2. rotary compressor according to claim 1, it is characterised in that the elastic component (71) is spring.
3. rotary compressor according to claim 1, it is characterised in that suction cavity (40) includes：
First passage (41), the blind hole being connected with the knockout (30) for one end, the pressure compensation opening (50) and described
Air-breathing pore (60) is arranged on the first passage (41)；
Second channel (42), it is connected between the first passage (41) and the knockout (30), the second channel (42)
The axis of axis and the first passage (41) there is angle；
Wherein, the valve element portion (70) is arranged in the first passage (41).
4. rotary compressor according to claim 3, it is characterised in that the second channel (42) is located at the air-breathing
The lower section of pore (60).
5. rotary compressor according to claim 3, it is characterised in that the first passage (41) is vertically arranged.
6. rotary compressor according to claim 5, it is characterised in that second channel (42) transverse horizontal is set
It is and L-shaped with the first passage (41).
7. rotary compressor according to claim 6, it is characterised in that the second channel (42) be arranged at it is described under
In flange (10b).
8. rotary compressor according to claim 7, it is characterised in that one end of the knockout (30) is stretched into described
It is connected in lower flange (10b) with the second channel (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259581.0A CN105201853B (en) | 2014-06-11 | 2014-06-11 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259581.0A CN105201853B (en) | 2014-06-11 | 2014-06-11 | Rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105201853A CN105201853A (en) | 2015-12-30 |
| CN105201853B true CN105201853B (en) | 2017-11-14 |
Family
ID=54949731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410259581.0A Expired - Fee Related CN105201853B (en) | 2014-06-11 | 2014-06-11 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105201853B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570139B (en) * | 2016-02-16 | 2017-11-21 | 珠海凌达压缩机有限公司 | Compressor air suction structure and compressor |
| CN106884794B (en) * | 2017-04-28 | 2019-06-28 | 广东美芝制冷设备有限公司 | Cylinder assembly and compressor, air conditioner with it |
| DE102018103610B3 (en) * | 2018-02-19 | 2019-02-14 | Hanon Systems | Apparatus for damping pressure pulsations for a gaseous fluid compressor |
| CN108757469A (en) * | 2018-07-10 | 2018-11-06 | 珠海凌达压缩机有限公司 | Cylinder assembly and compressor |
| CN114576170B (en) * | 2022-03-10 | 2023-09-05 | 珠海凌达压缩机有限公司 | Lower flange structure for compressor and compressor with lower flange structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1248678A (en) * | 1998-09-24 | 2000-03-29 | 三菱电机株式会社 | Spiral type compressor |
| CN201896754U (en) * | 2010-11-16 | 2011-07-13 | 珠海格力电器股份有限公司 | Variable-displacement rotary compressor and air conditioning system using same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103856B2 (en) * | 1986-09-30 | 1995-11-08 | 三菱電機株式会社 | Multi-cylinder rotary compressor |
| JPH01203687A (en) * | 1988-02-08 | 1989-08-16 | Matsushita Refrig Co Ltd | Rotary compressor |
| JP2012172571A (en) * | 2011-02-21 | 2012-09-10 | Panasonic Corp | Rotary compressor |
-
2014
- 2014-06-11 CN CN201410259581.0A patent/CN105201853B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1248678A (en) * | 1998-09-24 | 2000-03-29 | 三菱电机株式会社 | Spiral type compressor |
| CN201896754U (en) * | 2010-11-16 | 2011-07-13 | 珠海格力电器股份有限公司 | Variable-displacement rotary compressor and air conditioning system using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105201853A (en) | 2015-12-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |