CN207278522U - A kind of compressor exhaust structure - Google Patents
A kind of compressor exhaust structure Download PDFInfo
- Publication number
- CN207278522U CN207278522U CN201721061978.4U CN201721061978U CN207278522U CN 207278522 U CN207278522 U CN 207278522U CN 201721061978 U CN201721061978 U CN 201721061978U CN 207278522 U CN207278522 U CN 207278522U
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- valve plate
- buffering elastic
- exhaust valve
- elastic reed
- taper
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Abstract
The utility model discloses a kind of compressor exhaust structure, including valve plate, exhaust valve plate, limiter and taper buffering elastic reed, taper buffering elastic reed includes upper surface, spiral section and lower face, the upper surface of taper buffering elastic reed is fixedly connected with the lower surface of limiter, and the lower face of free state inferior pyramidal buffering elastic reed does not contact with the upper end of exhaust valve plate or just contacts.The utility model exhaust structure can reduce the impact velocity and surface contact stress of exhaust valve plate, lift exhaust valve plate reliability and reduce impact noise, be adapted to install and use in freezer compressor exhaust side small space, can be applied on High cooling power freezer compressor.
Description
Technical field
Compressor Technology field is the utility model is related to, is particularly applied to small-sized reciprocating-piston freezer compressor, can
Lift compressor efficiency and the exhaust structure of reliability.
Background technology
The operation principle of freezer compressor is alternately to realize refrigerant to refrigeration system by suction and discharge Period Process
Supply.Air-breathing and exhaust process are all the processes of refrigerant one-way flow, when piston is moved toward bottom dead centre, volume of cylinder increase,
Gas expansion, air pressure reduces, and when pressure is brought down below pressure of inspiration(Pi), suction valve chip is opened, and the refrigerant of low-pressure side enters cylinder；
When piston is moved toward top dead-centre, volume of cylinder reduces, and gas is compressed, air pressure rise, when pressure rises above exhaust pressure
During power, exhaust valve plate is opened, refrigerant discharge in cylinder.Thus suction and discharge characteristic of the performance of suction and discharge valve block to refrigerant plays
Very crucial effect.But due to the long-term open and close of exhaust valve plate, periodic shock loading and bending load are born, is held
Easily there is impact fatigue and flexural fatigue is destroyed, the failure of exhaust valve plate, which has become, influences the most important of freezer compressor service life
One of factor, is the problem that freezer compressor or even refrigeration industry generally face.In addition, the design of exhaust valve plate is to compressor
Performance also has a significant impact, good design can significantly reduce discharge loss, reduce reflux to be lifted the refrigerating capacity of compressor and
COP coefficients.
The exhaust structure of current refrigerator compressor uses following two modes mostly：A kind of is exhaust knot as shown in Figure 1
Structure, is made of parts such as valve plate 1, exhaust valve plate 2, limiters 3, and exhaust valve plate 2 is opened under the action of pressure differential, and with compared with
Big speed slaps against the lower surface of limiter 3.Since slap process belongs to rigid collision, exhaust valve plate 2 produces very big connect
Surface stress is touched, influences the service life of exhaust valve plate 2.The organization plan generally can be used only in the low compressor of small cold section or pressure ratio
On.Another kind is structure as shown in Figure 2, is made of parts such as valve plate 1, exhaust valve plate 2, limiter 3, damping fins 4, exhaust
Valve block 2 is opened under the action of pressure differential, is first contacted with damping fin 4, then exhaust valve plate 2 flops spacing together with damping fin 4
The lower surface of device 3.Due to the obstruction of damping fin 4, the speed that exhaust valve plate 2 flops limiter 3 has certain reduction, but still falls within
Rigid collision.Under High cooling power and bad working environments, the exhaust valve plate for still having compressor claps broken phenomenon.In addition, authorize publication number
A kind of exhaust structure suitable for compressor of air conditioner is disclosed for the Chinese utility model patent of CN203272066U, in air bleeding valve
One elastic device is set between piece and limiter, to reduce the impact noise of refrigeration compressor ventilating valve block and lift air bleeding valve
The reliability of piece.But since the spacing height of freezer compressor exhaust side is generally in 1mm or so, arrangement elasticity is had no room at all
Device, therefore in freezer compressor and do not apply to.
The content of the invention
The technical problem to be solved by the utility model is to propose a kind of impact velocity and table for reducing exhaust valve plate
Face contact stress, lifts exhaust valve plate reliability and reduces the compressor exhaust structure of impact noise.
In order to solve the above technical problems, a kind of compressor of the utility model includes valve plate, exhaust valve plate, limit with exhaust structure
Position device and taper buffering elastic reed, the upper end of the taper buffering elastic reed are fixedly connected with the lower surface of the limiter, from
Do not contacted with the upper end of the exhaust valve plate by the lower end of the taper buffering elastic reed under state or just contacted.
A kind of above-mentioned compressor exhaust structure, the taper buffering elastic reed include upper surface, spiral section and lower face,
The upper surface of the taper buffering elastic reed is fixedly connected with the lower surface of the limiter, the taper buffering under free state
The lower face of spring leaf does not contact with the upper end of the exhaust valve plate or just contacts.
A kind of above-mentioned compressor exhaust structure, the spiral shell of the spiral section of the taper buffering elastic reed under complete impaction state
It is 0 ° to revolve lift angle, i.e., described taper buffering elastic reed is compressed into plane.
A kind of above-mentioned compressor exhaust structure, the cross sectional shape of the taper buffering elastic reed is sheet, circle, ellipse
Shape or polygon.
The utility model adds taper buffering as a result of above-mentioned technical pattern among exhaust valve plate and limiter
Spring leaf, can hinder and buffer exhaust valve plate and the collision of limiter, the slap between exhaust valve plate and limiter is formed one kind
Flexible impact, reduces the impact velocity and surface contact stress of exhaust valve plate, can obviously improve exhaust valve plate surface stress, carry
Rise exhaust valve plate reliability and reduce impact noise.Meanwhile can be plane into one after the compression of taper buffering elastic reed, it is adapted in ice
Header compressor exhaust side small space is installed and used, and be can be applied on High cooling power freezer compressor, is vented under bad working environments
The service life of valve block can get a promotion.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of existing compressor exhaust structure；
Fig. 2 is the schematic diagram of existing another compressor exhaust structure；
Fig. 3 is the schematic diagram of the utility model compressor exhaust structure；
Fig. 4 is the structure diagram of taper buffering elastic reed in Fig. 3；
Fig. 5 is the structure diagram under the complete impaction state of taper buffering elastic reed；
Fig. 6 is the side structure schematic view relative to Fig. 5.
Embodiment
As shown in figure 3, the utility model compressor includes valve plate 1, exhaust valve plate 2, limiter 3 and taper with exhaust structure
Buffering elastic reed 5.
As shown in figure 4, taper buffering elastic reed 5 includes upper surface 53, spiral section 52 and lower face 51, upper surface 53 and limit
The lower surface of position device 3 is fixedly connected（Connection mode can use spot welding, bonding, riveting or other means）, free state inferior pyramidal
The lower face 51 of buffering elastic reed 5 does not contact with the upper surface of exhaust valve plate 2 or just contacts.
As shown in figure 5, the helix angle of the spiral section 52 of taper buffering elastic reed 5 is 0 ° after compressing completely, i.e. taper is delayed
Rush spring leaf 5 be compressed into it is plane（Please refer to shown in Fig. 6）.
In 2 open stage of exhaust valve plate, using the elastic force of taper buffering elastic reed 5 rigidity of exhaust valve plate 1 can be allowed to set
Count value reduce, enable exhaust valve plate 2 open stage earlier, more quickly start, caused by overcompression can be reduced power damage
Lose, so as to lift compressor COP.And in 2 dwell period of exhaust valve plate, can be timely using the elastic force of taper buffering elastic reed 5
Exhaust valve plate 2 is closed on ground, reduces gases at high pressure reflux, while can also reduce energy loss to lift compressor refrigerating capacity and COP.
This embodiment presents the advantage that：1st, exhaust valve plate-taper buffering elastic spring system is when slapping against limiter
Velocity of flapping it is small so that the surface stress of exhaust valve plate is small, be conducive to be lifted the reliability of exhaust valve plate.2nd, exhaust valve plate
Stiffness by itself design can be in a relatively low level, so as to air bleeding valve when compresser cylinder inside and outside differential pressure very little
Piece is responded to and opened rapidly, can prevent overcompression, reduces compression horsepower, lifts compressor efficiency.3rd, dwell period can and
When close exhaust valve plate, reduce gases at high pressure reflux, reduce energy loss lifting compressor refrigerating capacity and COP.4th, can drop
The slapping noise of low exhaust valve plate.
In the utility model exhaust structure, the cross sectional shape of taper buffering elastic reed can be sheet, circle, ellipse,
Polygon or other shapes.
Claims (4)
1. a kind of compressor exhaust structure, including valve plate, exhaust valve plate and limiter, it is characterised in that it further includes taper
Buffering elastic reed, the upper end of the taper buffering elastic reed are fixedly connected with the lower surface of the limiter, institute under free state
The lower end of taper buffering elastic reed is stated not contact with the upper end of the exhaust valve plate or just contact.
2. a kind of compressor exhaust structure as claimed in claim 1, it is characterised in that the taper buffering elastic reed includes
Upper surface, spiral section and lower face, the upper surface of the taper buffering elastic reed are fixedly connected with the lower surface of the limiter,
The lower face of the taper buffering elastic reed does not contact with the upper end of the exhaust valve plate or just contacts under free state.
A kind of 3. compressor exhaust structure as claimed in claim 2, it is characterised in that the taper under complete impaction state
The helix angle of the spiral section of buffering elastic reed is 0 °, i.e., described taper buffering elastic reed is compressed into plane.
A kind of 4. compressor exhaust structure as described in claim 1,2 or 3, it is characterised in that the taper buffer spring
The cross sectional shape of piece is sheet, circle, ellipse or polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721061978.4U CN207278522U (en) | 2017-08-23 | 2017-08-23 | A kind of compressor exhaust structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721061978.4U CN207278522U (en) | 2017-08-23 | 2017-08-23 | A kind of compressor exhaust structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278522U true CN207278522U (en) | 2018-04-27 |
Family
ID=61984659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721061978.4U Active CN207278522U (en) | 2017-08-23 | 2017-08-23 | A kind of compressor exhaust structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207278522U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083829A (en) * | 2018-09-09 | 2018-12-25 | 合肥安信通用阀片制造有限公司 | A kind of refrigeration compressor ventilating valve block limiter |
| CN109139479A (en) * | 2018-08-10 | 2019-01-04 | 珠海格力电器股份有限公司 | Exhaust system and compressor |
| CN110905769A (en) * | 2019-12-11 | 2020-03-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust valve assembly, compressor and household appliance |
-
2017
- 2017-08-23 CN CN201721061978.4U patent/CN207278522U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139479A (en) * | 2018-08-10 | 2019-01-04 | 珠海格力电器股份有限公司 | Exhaust system and compressor |
| CN109083829A (en) * | 2018-09-09 | 2018-12-25 | 合肥安信通用阀片制造有限公司 | A kind of refrigeration compressor ventilating valve block limiter |
| CN110905769A (en) * | 2019-12-11 | 2020-03-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust valve assembly, compressor and household appliance |
| CN110905769B (en) * | 2019-12-11 | 2021-10-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust valve assembly, compressor and household appliance |
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