CN108626101A - Check valve assembly and its manufacturing method for compressor - Google Patents

Abstract

The invention discloses a kind of check valve assembly for compressor, which is used at least one inlet valve and air bleeding valve, and the check valve assembly includes：Valve base piece has first surface and valve opening；Valve, it is with second surface, wherein the first surface is oppositely arranged with the second surface, when the valves are closed, the second surface makes the valve occlude the valve opening, when valve is open against the first surface, the second surface is separated with the first surface, to allow fluid to pass through from the valve opening, wherein upper at least one the first surface and the second surface includes elastomeric material.It is an advantage of the current invention that more direct kinetic energy absorption is used, shock momentum when can directly absorb closed check valve in compressor between valve and valve seat, to realize the purpose of noise reduction and vibration damping.Present invention is particularly beneficial for the muting functions for providing indoor compressor.

Description

Check valve assembly and its manufacturing method for compressor

Technical field

The present invention relates to check-valves, the more particularly to valve module and its manufacturing method of compressor, which is used for air-breathing At least one valve and air bleeding valve, and, relate more particularly to the vibration and noise reducing processing for the check valve used in compressor.

Background technology

Check-valves refers to being flowed and automatic open and close flap by medium itself, for the valve for preventing medium from flowing backwards, also known as Non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, and main function is to prevent medium from falling It flows, prevent pump and drive motor reversion and vessel media from releasing.

Typically, check-valves is used in compressor.Power source and heart of the compressor as domestic refrigerating appts, in noise Control aspect has been achieved for larger progress.Compressor field common concern environmental issue, vibration of compressor and noise radiation Also belong to the environmental issue remained to be further improved.The compressor of the refrigeration equipments such as refrigerator relatively mostly uses reciprocating-piston pressure at present Contracting machine.The space of promotion is still had for the research of the vibration and noise problem progress of the compressor of refrigerator.It is excessive to shake It is dynamic to influence the normal work of people and rest with noise, damage physical and mental health, reduction working efficiency, reduce user experience, together Shi Yinfa vibrating object fatigue damages, reduce the service life.The noise and energy consumption of household appliances are reduced, product inherent quality is improved It is the active demand of household electric appliances.

Reciprocting piston compressor is that the bent axle of compressor is driven to rotate using motor as power, passes through crank connecting link Mechanism is changed into the rotary motion of bent axle the reciprocating motion for making piston in cylinder, is realized in the cylinder to the compressed of gas Journey, and refrigerant is pushed to flow in systems.The course of work of compressor：Air-breathing, compression, exhaust, expansion cyclic process.Often During one cycle, the disengaging of compresser cylinder inner refrigerant is completed by the opening and closing of valve (valve block, valve plate).

In addition, scroll compressor also uses check valve.

The reason of generating noise when compressor operating there are many kinds of meetings, including mechanical noise, aerodynamic noise, electromagnetism are made an uproar Sound.Particularly, the periodic out-of-balance force of compressor can excite the vibration of upper frequency, when the intrinsic frequency of vibrated parts When rate is equal to the integral multiple of cyclical disequilibrium power frequency, then parts can be made to generate strong resonance, to generate very noisy.

The mechanical noise of compressor, generally comprise the shock of component, friction, the vibration of piston, air valve impact noise Randomness is carried Deng, these noises, is in broadband character.

In mechanical noise, it is also desirable to inhibit valve base piece (valve plate), valve part (valve block) and valve block limiter it Between shock caused by vibration and noise and valve block occur to hit the vibration and noise generated when being closed with valve plate.

The discussion of the relevant technologies]

Patent document 1：Japanese patent application, publication number JPH07310664 (A) disclose a kind of subtracting for compressor Vibration shape valve base piece (VIBRATION DAMPING TYPE VALVE SEAT FOR COMPRESSOR).In the technical solution, Damping material is provided between cylinder body and valve base piece, to reduce impact noise when valve plate is closed.

Patent document 2：South Korea patent application, publication number KR20040026214 (A), discloses a kind of scroll compressor Damping type valve (APPARATUS FOR DAMPING VALVE OF SCROLL COMPRESSOR).The patent application disclose A kind of special valve plate limiting device, to reduce when valve plate is opened, the vibrating noise of valve plate.

Patent document 3：PCT Patent Application, publication number WO2012088573 (A1), entitled " SUCTION VALVE, METHOD FOR DAMPING THE OPENING OF A SUCTION VALVE,SYSTEM FOR DAMPING THE OPENING OF A SUCTION VALVE,COMPRESSOR AND REFRIGERATOR”.This publication disclose a kind of suckings Valve, the elastic piece that valve plate is set as being overlapped by two are constituted, and to promote the ability of valve plate opening, and reduce elasticity when valve plate is opened The noise that piece vibrates.

Patent document 4：Chinese patent application publication number CN104832704A applies for artificial 3M Innovation Co., Ltd, entitled " limit element, check valve, composition, elastomeric material, grafting graphite and preparation method thereof ".The invention provides a kind of limit member Part, check valve, composition, elastomeric material, grafting graphite and preparation method thereof, belong to check valve antivibration area.The hair Bright that elastomer layer is arranged in limit element, elastomer layer is made of elastomeric material.The elastomeric material of the invention is by combining Object is cross-linked to form, and composition includes：Nitrile rubber；It is grafted graphite comprising graphite particle and be grafted on connecing in graphite particle Branch group, grafted moiety includes the copolymer group of butadiene and acrylonitrile.The elastomeric material to oil and refrigerant better resistance, And there is good dynamic anti-aging property and damping property.

Above-mentioned the relevant technologies are incorporated herein in entirety by reference in the application.

Invention content

[technical problems to be solved]

Extend the use longevity of vibration component the purpose of the present invention is reducing the noise of check-valves, and by reduction vibration Life.

Particularly, present invention aims at compressor noise is further reduced, especially for the noise of freezer compressor. Refrigerator as referred to herein refers to the indoor refrigeration storage device used, can be various types of refrigerator-freezers or refrigerator, because The compressor of this kind of device is usually disposed on interior, therefore, to eliminating the requirement higher of noise.

As mentioned above, there are many kinds of the technological improvements for check valve noise reduction in compressor for this field, still, for The noise treatment that valve base piece is hit when valve plate is closed still has improved demand and space.

[technical solution]

The first aspect of the present invention provides a kind of check valve assembly for compressor, which is used for air-breathing At least one valve and air bleeding valve, the check valve assembly include：Valve base piece has first surface and valve opening；Valve has the Two surfaces, wherein the first surface is oppositely arranged with the second surface, and when the valves are closed, the second surface is against institute First surface is stated, the valve is made to occlude the valve opening, when valve is open, the second surface is separated with the first surface, To allow fluid to pass through from the valve opening, wherein upper at least one the first surface and the second surface includes elasticity Body material.

The second aspect of the present invention provides a kind of damping type valve base piece for compressor, has first surface and valve Hole, wherein the first surface is oppositely arranged with the valve, and when the valves are closed, the valve makes against the first surface The valve occludes the valve opening, and when valve is open, the valve is separated with the first surface, to allow fluid from the valve Hole passes through, wherein includes damping material on the first surface.

The third aspect of the present invention additionally provides a kind of compressor for refrigeration, including above-mentioned both sides check valve assembly, Alternatively, damping type valve base piece, at least one the intake valve of compressor and air bleeding valve.And the present invention also provides including Using the refrigerator of above-mentioned compressor,

The present invention's it is critical that between valve module in compressor, that is, the contact surface between valve and valve seat One of or the two apply damping material, most can directly and effectively reduce valve and valve seat and hit the noise generated.

Further, the vibration of the valve constituted using elastic piece can effectively be inhibited, it therefore, can not only noise reduction, moreover it is possible to It enough reduces the elastic piece root that the vibration of elastic piece causes to meet with stresses the number of variation, this is because the present invention can be in valve The number of elastic piece vibration is reduced in door open position, takes this to extend the elastic piece service life, and extend the service life of compressor.

Particularly, damping material is set on valve base piece contact surface, the present invention provides preferred schemes, including such as Under arrangement：Formed on valve base piece contact surface fluted, the outer profile of groove is consistent with the local outer profile of valve, groove type At in the fluid through-hole adjacent edges, and, at least part of the damping rubber pad is filled in the groove.It is excellent Selection of land, rubber cushion is substantially flush with valve base surface, or the surface according to concrete application and slightly raised above valve seat body.The present invention carries Supply a kind of method of special formation damping rubber pad, that is, the part that valve base piece ontology is constituted to die cavity, using injection molding Technique forms rubber damping material pad between the valve plate contact surface and mold of valve base piece ontology.

[advantageous effect]

It is an advantage of the current invention that using more direct kinetic energy absorption, it can directly absorb check valve in compressor and close Shock momentum when closing between valve and valve seat, to realize the purpose of noise reduction and vibration damping.

Present invention is particularly beneficial for provide the muting function of indoor compressor therefore to be particularly conducive to improve indoor The user experience of refrigerator.

In addition, present invention preferably employs the applicant, the Chinese patent application of 3M Innovative Properties Company, publication number CN104832704A, the elastomeric material of introduction are applied to be used as vibration-damping rubber material in the present invention, are applied to check valve assembly Valve seat or valve at least alternative one contact area.

Description of the drawings

After the non-limiting embodiment for reading the present invention with reference to attached drawing, skilled addressee readily understands that this hair Bright purpose and feature, description of the drawings are as follows：

Fig. 1 illustrates reciprocating compressor cylinder piston mechanism and component arrangement；

Fig. 2 shows the decomposition diagrams of the valve board assembly of one embodiment of the invention；

Fig. 3 schematically shows the sectional view that Fig. 2 valve board assemblies fit together, and shows the state of closed check valve；

Fig. 4 schematically shows the sectional view that Fig. 2 valve board assemblies fit together, and shows the state that check valve is opened；

Fig. 5 shows that the improved damping type valve base piece of the present invention is applied to compressor with conventional criteria valve plate, for actual measurement Compressor noise is compared, and in the testing example, only refrigerant inlet (air intake valve) uses valve base piece of the invention.

Specific implementation mode

Embodiments of the present invention are described below in conjunction with attached drawing.It is described in the whole text using similar reference numeral in attached drawing similar Or identical component.Here the different characteristic disclosed can be used alone, or vary from one another combination, and being not specified by will be of the invention It is defined in the specific combination of described in the text.Described embodiment is not used in restriction the scope of the claims as a result,.

Phrase " in one embodiment ", " in embodiments ", " in some embodiments " may be used in explanation, Either can respectively it refer to respectively " in other embodiments " according to the identical or different implementation of one or more disclosed herein Mode.

It should be appreciated that the check valve of present disclosure, the feature of the embodiment of valve base piece, valve module can be different configuration Combination.It should be appreciated that compared with shown in attached drawing, check valve seat piece of the invention, the embodiment of valve module may include adding , reduce or different component.It should be appreciated that the feature of embodiments of the present invention can be different configuration or step Combination.

Although for the purpose of description and explanation, attached drawing specifically illustrates embodiment, it should be understood that disclosed processing Method and apparatus can not constitute limitation of the invention.It will be understood by those skilled in the art that being easy to make to aforementioned embodiment party A variety of modifications of formula, without departing from the scope of the present invention.

Fig. 1 illustrates a kind of typical reciprocating compressor cylinder piston mechanism and component arrangement, is shown Connecting rod 5, cylinder 10, piston 20, piston pin 30, inlet valve (inlet valve) 40, valve base piece 50, air bleeding valve (exhaust valve) 60, cylinder Lid 70, the gasket 55 between cylinder wall 56 and component.

The operation principle of reciprocating compressor：Power is provided by motor, by toggle the rotation of bent axle Movement is changed into reciprocating motion of the piston in cylinder, realizes the compression process of gas.Cylinder 10, piston 20, inlet valve 40, row Air valve 60 and bent axle (not shown) are the critical pieces of the compressor.

Coolant absorbs heat by evaporator (not shown) etc., is turned into low-pressure steam, as 20 downlink of piston is inhaled Air valve 40 is opened, and coolant low-pressure steam enters from inlet valve 40 in cylinder 10, then, with 20 uplink of piston, low-pressure steam It is compressed into the higher steam of pressure in the cylinder, air bleeding valve 50 is opened, high steam is discharged.After compressor, high pressure is steamed Vapour is sent to higher-pressure region cooling condensation, gives out thermal energy by cooling fin, refrigerant also becomes liquid from gaseous state.Refrigerant again from Higher-pressure region flows to low-pressure area, is ejected into evaporator by capillary, and pressure drop, liquid refrigerant is immediately turned into gaseous state, leads to It crosses cooling fin absorption and waits for a large amount of heat of refrigerated area, then, the steam for the lower pressure that compressor sucking comes out from evaporator, To complete refrigeration cycle.

Embodiment

Embodiment 1 provides a kind of valve board assembly 100, i.e. a kind of embodiment of the valve module of valve module or check valve.

As shown in Fig. 2, valve board assembly 100 includes valve plate 100a and valve block 100b, is stacked and assembled by the two.

[valve plate (template valve base piece)]

Valve plate (valve base piece) 100a is provided with valve opening 110, in the first surface of valve plate 100a, is arranged in 110 periphery of valve opening Fluted 115, damping rubber pad 116 is formed with by injection molding in groove 115.Valve plate 100a is set as the valve seat of check valve Part.

The valve plate 100a of casting method manufacture setting fluted 115 may be used.

Valve plate 100a is formed by the known metal-molding of the prior art, as shown in Fig. 2, in the first surface of valve plate 100a On, form groove 115 along the periphery of through-hole 110.The depth of groove 115 is about 0.8 millimeter to about 1.2 millimeters, and preferably from about 1 Millimeter.In one embodiment, can formed valve plate mold on pre-set 115 surface of respective slot texture or Bumps, to form suitable coarse surface construction.This surface micro-moulding can also be formed by other techniques.Valve plate 100a's The first surface of ontology is optional to be combined to form the mold cavity of closure with other mold (not shown), using the side of injection molding Formula injects elastomeric material such as rubber, then passes through curing molding, and the periphery of 110 first surface of through-hole of valve plate 100a is embedding Set rubber cushion 116.The surface of rubber cushion 116 is substantially flushed at the surface of valve plate 100a (i.e. first surface).According to specific application Situation, for example, rubber pad soft or hard degree, the optional surface by rubber cushion 116 is made for the table of slightly higher than valve plate 100a ontologies Face.

[valve block (valve)]

Valve block 100b is to have flexible foil, can be made of high cycle fatigue steel (such as spring steel), pass through precision Stamping process forms elastic piece 125 on valve block 100b, and one end of elastic piece 125 connect the company of being formed with the ontology of valve block 100b End 120 is connect, the other parts of elastic piece 125, the i.e. freedom portion 126 of elastic piece 125 can surround connecting pin 120 and back and forth transport Dynamic, which constitutes the valve mechanism of check valve.

Valve block (valve block 100b) is the strongest part that is hit in compressor, needs to meet following standard：(1) valve block is set Meter should meet the various requirement of compressor Manufacturing business；(2) valve plate material is needed by precision stamping；(3) valve block and valve base piece (valve Plate 100a) between good seal；(4) performance steady in a long-term is most important；(5) elasticity and restorability of material.According to The valve block 100b that technology well known in the art makes embodiment 1 may be used in specific application.

[valve board assembly 100]

Through-hole and fluting there are many opening up are corresponded on valve plate 100a and valve block 100b respectively, as mounting hole or compressor On lubricating oil or cooling liquid flowing channel, will herein be described in detail.

Valve plate 100a and valve block 100b are corresponded to through-hole alignment to assemble, that is, valve board assembly 100 is obtained, for being mounted on Intake valve or air bleeding valve are limited on compressor.The operation principle of intake valve and air bleeding valve is identical, but due to compressor chamber Body structure or other reasons, intake valve is specifically designed from the shape of air bleeding valve may be different.

With reference to Fig. 3, wherein schematically showing the valve plate 100a and the valve board assemblies that fit together of valve block 100b in Fig. 2 100, the check valve that valve board assembly 100 is constituted is closed, that is, and the elastic piece 125 of valve block 100b is resisted against valve plate 100a, More specifically, the preceding periphery of the freedom portion 126 of elastic piece 125 and rear portion are contacted with the damping rubber pad 116 of valve plate 100a.

With reference to Fig. 4, there is shown with by the valve plate 100a and the valve board assemblies 100 that fit together of valve block 100b in Fig. 2, valve The check valve that board group part 100 is constituted is in the open state.

It illustrates, for being applied to inlet valve 40 shown in FIG. 1, with 20 downlink of piston, the elasticity of valve block 100b Piece 125 opens (with reference to Fig. 4), that is, leaves the first surface of valve plate 100a, refrigerant steam shown in arrow flow through valve opening 110 into Enter the upper cavity of cylinder barrel.

For being applied to air bleeding valve 60 shown in FIG. 1, with 20 uplink of piston, the refrigerant in the upper cavity of cylinder barrel steams The compressed refrigerant liquid as high temperature and pressure of vapour, and illustrate with reference to Fig. 4, the pressure of discharge chambe pushes the elasticity of valve block 100b Piece 125 is opened, that is, leaves the first surface of valve plate 100a, and compressed refrigerant shown in arrow is discharged from hole 110.

The pressure for pushing drain tap to open, while air intake valve being made to compress the valve base piece of air intake valve, vice versa.By This compressor provides sucking refrigerant, and the circulate operation of compressed refrigerant is discharged in compression refrigerant.

[mold and die cavity]

About mold and die cavity, technique well known in the art may be used.About the setting of die cavity, it is correspondingly formed rubber cushion Preferable shape, preferably match with the extension of valve (elastic piece), prevent coolant leakage, meanwhile, suitably expand contact area, The effectively slap and shock of buffering valve block.

[elastomeric material of rubber cushion]

The rubber cushion 116 as shown in Fig. 2-4 is made of elastomeric material.Elastic material require have high temperature resistant, impact resistance, The material of oil resistant.

The fracture elongation of elastomeric material is at least 10%；More preferably when elongation strain is 10%, stress is at least 0.5MPa.The elastic property of elastomeric material has a great impact to its cushioning effect, it has been investigated that, meet conditions above Elastomeric material can preferably meet buffering needs.

Preferably, Shore A hardness of the elastomeric material at 23 degrees Celsius is 30 to 80, further preferably 30 to 70.

Since elastomer layer is often subject to the shock of valve element, therefore its hardness also has certain requirement, excessively it is soft then itself It is easy to wear, it is really up to the mark, good cushioning effect cannot be played, it has been investigated that, above hardness range is proper.

Preferably, elastomeric material is damping rubber.

That is, above elastomeric material is alternatively damping material (such as damping rubber), it is slow to preferably play Punching, effectiveness in vibration suppression.Specifically, available damping rubber is preferably the damping rubber of 3M companies, such as the VC308 of 3M companies, The damping rubber of the models such as VC310.

Elastomeric material is alternatively other conventional polymer materials, specifically may include with any one in Types Below Or it is a variety of：Polyamide, such as nylon66 fiber, semi-aromatic nylon；Polyurethane, such as polyester polyurethane, hot melt type polyurethane, poly- ammonia Ester composite material etc.；Polyolefin and polyolefin derivative object, such as polypropylene, polyethylene, natural rubber, butadiene rubber, butyronitrile rubber Glue (preferably hydrogenated nitrile-butadiene rubber) etc.；Thermoplastic vulcanizates；Fluorubber, such as perfluoroelastomers, fluorine silicone rubber, inclined fluoroether rubber Deng；Acrylic rubber, such as ethylene-acrylate rubber, epoxy acrylate rubber；Epoxy resin, such as solids epoxy tree Fat, liquid curable epoxy resin etc.；Phenolic resin.

The elastomeric material of a kind of preferred embodiment as embodiment of the invention, above-mentioned elastomer layer can be by a kind of combination Object is cross-linked to form, and the composition includes：

Nitrile rubber (preferably hydrogenated nitrile-butadiene rubber)；

It is grafted graphite comprising graphite particle and the grafted moiety being grafted in graphite particle, grafted moiety includes fourth two The copolymer group of alkene and acrylonitrile.

Preferably, in composition the weight percentage of nitrile rubber 28% to 60%；Graphite is grafted in composition Weight percentage is 2% to 12%.

Preferably, in being grafted graphite, the weight of opposite graphite particle, the weight ratio of grafted moiety is 6% to 20% Between.

The check valve of the present invention is preferably the check valve in the compressor of refrigeration equipment, in the working environment of this check valve It is filled with oily (such as lubricating oil) and refrigerant, and operating temperature and pressure are higher.Therefore, the material of elastomer layer preferably cope with oil and Refrigerant has preferable resistance (ageing resistance), to ensure physical property (such as hardness, mechanics in elastomer layer in use Performance) and size constancy.Meanwhile elastomer layer can be repeatedly subjected to impact and the subtle flow of valve block, therefore its dynamic in use Ageing properties, wear-resisting property etc. are also important.

In above-mentioned elastomeric material, grafting is distributed in the base material based on nitrile rubber (preferably hydrogenated nitrile-butadiene rubber) Graphite is grafted the grafted moiety for having similar nitrile rubber molecule in the graphite particle of graphite, therefore it can be total with nitrile rubber base material The interface between graphite particle and nitrile rubber is eliminated in crosslinking, to incorporate in base material well, therefore is grafted the presence of graphite not Harmful effect can be caused to mechanical properties such as the intensity of nitrile rubber.Simultaneously as the characteristic of graphite itself, particle are necessarily Sheet, as a result, the graphite particle of sheet can stop the intrusions such as refrigerant, oil, to improve the ageing resistance of elastomeric material； And the graphite of sheet may also function as the effect for improving elastomeric material wear-resisting property and dynamic anti-aging property, improve its anti-valve The ability of piece impact.That is, above-mentioned composition, in addition to good mechanical property, anti-aging property, dynamic are anti-aging Performance, wearability etc. are also very outstanding, therefore are particularly suited for use as the elastomer layer of the check valve of compressor.

In embodiment, damping rubber pad is molded according to predetermined design shape by 3M High Damping Performances rubber series VC308 It forms, adapts to -40 degrees Celsius to 80 degrees Celsius of temperature change, can absorb during valve block each recycles when being opened and closed to valve plate Impact, the vibration and stress to reduce valve block are concentrated.

Table 1 is the test data of 3M High Damping Performance rubber series VC308：

[impact experiment test]

The conventional valve plate of table 2. and the comparison of valve plate of the present invention are tested

[compressor noise test and comparison]

Fig. 5 shows existing compressor compared with the noise test of compressor of the present invention.

Test method explanation：Compressor complete machine is placed in anechoic room, surrounding is distributed 4 measuring points, and 1, top amounts to 5 The measuring point that about 20 centimetres of average departure compressor case.Under compressor running at full capacity, the average sound pressure level of measuring point is collected, is used A weighteds.

Which show respectively the improved with rubber pad of conventional valve plate (common standard valve plate) and the embodiment of the present invention The noise collection of illustrative plates of valve plate (improving rubber valve plate).For standard valve plate setting around the grooving of valve opening in the embodiment of the present invention And apply rubber damper in grooving.

It is tested by compressor, it was demonstrated that in 100-4000Hz, lower noise about 2dB

It is the actual measurement noise data (dB) recorded in respective frequencies (Hz) in the lower part of chart.[change mode]

Contracting machine can be divided into many types, and present invention is preferably applicable to freezer compressors, this is because freezer compressor is directed to The requirement highest of noise, the present invention is highly beneficial applied to compressor noise is reduced, and can be substantially reduced and be positioned over indoor pressure The noise of contracting machine.Still further aspect, the present invention can also be applied to other similar applications.

The valve board assembly provided in embodiment is provided separately.Other modes, such as multiple valve blocks can also be used to be total to With a valve plate, multiple valve openings are formed on valve plate, and, the tow sides of valve plate are respectively formed corresponding different check valve valve openings Vibration damping rubber cushion.

In addition, for example can also rubber cushion be formed in the edge of valve, and corresponding groove is formed in valve plate.It is formed in Rubber cushion on valve can apply in a nesting relation, and in one embodiment, elastomer layer thickness is 0.6 millimeter, and is used Hydrogenated nitrile-butadiene rubber.

The present invention includes at least following concept：

A kind of check valve assembly for compressor of concept 1., the check valve assembly for inlet valve and air bleeding valve at least it One, the check valve assembly includes：Valve base piece has first surface and valve opening；Valve, with second surface, wherein described First surface is oppositely arranged with the second surface, and when the valves are closed, the second surface makes described against the first surface Valve occludes the valve opening, and when valve is open, the second surface is separated with the first surface, to allow fluid from the valve Hole passes through,

Wherein, upper at least one the first surface and the second surface includes elastomeric material.

Check valve assembly of the concept 2. according to concept 1, wherein the elastomeric material is rubber damping material.

Check valve assembly of the concept 3. according to concept 2, wherein can at least be connect with the valve in the first surface Rubber damping material pad is arranged in tactile position.

Check valve assembly of the concept 4. according to concept 2, wherein at least the valve can be with the first surface The rubber-coated Damping material layer in position of contact.

Check valve assembly of the concept 5. according to concept 3, wherein in the first surface on the valve base piece ontology Groove is set, and, the damping rubber pad is filled in the groove.

Check valve assembly of the concept 6. according to concept 5, wherein the groove is formed in the valve opening edge part, slot About 0.8 millimeter to about 1.2 millimeters deep, the outer profile of the groove is consistent at least local outer profile of the valve.

Valve module of the concept 7. according to concept 6, wherein the groove is about 1 millimeter deep.

Check valve assembly of the concept 8. according to any one of concept 5-7, the groove substantially have uniform depth.

Check valve assembly of the concept 9. according to any one of concept 5-8, wherein be provided in the groove coarse Face.

Valve module of the concept 10. according to any one of concept 1-9, wherein the valve is set as elastic piece, the bullet One end of property piece is fixed with valve base piece, and other end is free end.

Valve module of the concept 11. according to any one of concept 2-9, wherein the rubber damping material density 1.1g/ cm3(±0.1g/cm3)；Hardness 60；At 23 DEG C, humidity 50%, the elongation at break 400% under the conditions of 500mm/min；23 DEG C, humidity 50%, under the conditions of 300mm/min, fracture tensile strength 10Mpa.

A kind of damping type valve base piece for compressor of concept 12. has first surface and valve opening, wherein described first Surface is oppositely arranged with the valve, and when the valves are closed, the valve makes against the first surface described in the valve occlusion Valve opening, when valve is open, the valve are separated with the first surface, to allow fluid to pass through from the valve opening,

Wherein, include on the first surface damping material.

Damping type valve base piece of the concept 13. according to concept 12, wherein the damping material is rubber damping material.

Groove is arranged in the first surface in damping type valve base piece of the concept 14. according to concept 13, and, it is described At least part of damping rubber pad is filled in the groove.

Damping type valve base piece of the concept 15. according to concept 14, wherein the groove is formed in the valve opening edge Portion, about 0.8 millimeter to about 1.2 millimeters of groove depth, the outer profile of the groove are consistent at least local outer profile of the valve.

Damping type valve base piece of the concept 16. according to concept 14, wherein the groove is about 1 millimeter deep.

Damping type valve base piece of the concept 17. according to concept 14, wherein be provided with rough surface in the groove.

Damping type valve base piece of the concept 18. according to any one of concept 13-17, wherein wherein, the rubber damping Density of material 1.1g/cm3 (± 0.1g/cm3)；Hardness 60；At 23 DEG C, humidity 50%, the fracture under the conditions of 500mm/min is stretched Long rate 400%；At 23 DEG C, humidity 50%, under the conditions of 300mm/min, fracture tensile strength 10Mpa.

Check valve assembly described in any one of concept 19. a kind of compressor for refrigeration, including concept 1-11, alternatively, root According to the damping type valve base piece described in concept 12-18, at least one the intake valve of compressor and air bleeding valve.

A kind of 20. refrigerator of concept, including the compressor described in concept 19.

A kind of manufacturing method of 21. valve module of concept, the valve module include：Valve base piece has first surface and valve opening；Valve Door, with second surface, wherein the first surface is oppositely arranged with the second surface, when the valves are closed, described second Surface makes the valve occlude the valve opening, when valve is open, the second surface and described first against the first surface Surface separates, to allow fluid to pass through from the valve opening,

The valve module manufacturing method includes the following steps：

The first surface side is set in the valve base piece ontology, and the second surface is set in the valve body Side, until less than damping material is applied in alternative one.

Valve module manufacturing method of the concept 22. according to concept 21,

Wherein, using rubber damping material as damping material.

Valve module manufacturing method of the concept 23. according to concept 22, further includes following step,

Groove is opened up in the side that the first surface is arranged in the valve base piece ontology, and, constitute die cavity using groove Part, wherein injection molding form rubber damping material pad.

Valve module manufacturing method of the concept 24. according to concept 23, wherein the groove is formed in the valve opening edge Place, about 0.8 millimeter to about 1.2 millimeters of groove depth, the outer profile of the groove are consistent at least local outer profile of the valve.

Valve module manufacturing method of the concept 25. according to concept 24, wherein wherein, the groove is about 1 millimeter deep.

Valve module manufacturing method of the concept 26. according to concept 24 or 25, wherein coarse in being arranged in the groove Face.

Valve module manufacturing method of the concept 27. according to any one of concept 24-26, wherein mold is used, described Groove is molded to form the rubber damping material pad with predetermined shape.

It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.

Claims (27)

1. a kind of check valve assembly for compressor, which is used at least one inlet valve and air bleeding valve, described Check valve assembly includes：Valve base piece has first surface and valve opening；Valve, with second surface, wherein first table Face is oppositely arranged with the second surface, and when the valves are closed, the second surface makes the valve close against the first surface The valve opening is filled in, when valve is open, the second surface is separated with the first surface, to allow fluid logical from the valve opening It crosses,

Wherein, upper at least one the first surface and the second surface includes elastomeric material.

2. check valve assembly according to claim 1, wherein the elastomeric material is rubber damping material.

3. check valve assembly according to claim 2, wherein can at least be contacted with the valve in the first surface Rubber damping material pad is arranged in position.

4. check valve assembly according to claim 2, wherein can at least be contacted with the first surface in the valve The rubber-coated Damping material layer in position.

5. check valve assembly according to claim 3, wherein be arranged on the valve base piece ontology in the first surface Groove, and, the damping rubber pad is filled in the groove.

6. check valve assembly according to claim 5, wherein the groove is formed in the valve opening edge part, and groove depth is about 0.8 millimeter to about 1.2 millimeters, the outer profile of the groove is consistent at least local outer profile of the valve.

7. valve module according to claim 6, wherein the groove is about 1 millimeter deep.

8. according to the check valve assembly described in any one of claim 5-7, the groove substantially has uniform depth.

9. according to the check valve assembly described in any one of claim 5-8, wherein be provided with rough surface in the groove.

10. according to the valve module described in any one of claim 1-9, wherein the valve is set as elastic piece, the elastic piece One end fixed with valve base piece, other end is free end.

11. according to the valve module described in any one of claim 2-9, wherein the rubber damping material density 1.1g/cm3 (±0.1g/cm3)；Hardness 60；At 23 DEG C, humidity 50%, the elongation at break 400% under the conditions of 500mm/min；At 23 DEG C, Humidity 50%, under the conditions of 300mm/min, fracture tensile strength 10Mpa.

12. a kind of damping type valve base piece for compressor has first surface and valve opening, wherein the first surface and institute Valve is stated to be oppositely arranged, when the valves are closed, the valve makes the valve occlude the valve opening against the first surface, when When valve is opened, the valve is separated with the first surface, to allow fluid to pass through from the valve opening,

Wherein, include on the first surface damping material.

13. damping type valve base piece according to claim 12, wherein the damping material is rubber damping material.

14. groove is arranged in the first surface in damping type valve base piece according to claim 13, and, the damping At least part of rubber pad is filled in the groove.

15. damping type valve base piece according to claim 14, wherein the groove is formed in the valve opening edge part, slot About 0.8 millimeter to about 1.2 millimeters deep, the outer profile of the groove is consistent at least local outer profile of the valve.

16. damping type valve base piece according to claim 14, wherein the groove is about 1 millimeter deep.

17. damping type valve base piece according to claim 14, wherein be provided with rough surface in the groove.

18. the damping type valve base piece according to any one of claim 13-17, wherein wherein, the rubber damping material Density 1.1g/cm3 (± 0.1g/cm3)；Hardness 60；At 23 DEG C, humidity 50%, the elongation at break under the conditions of 500mm/min 400%；At 23 DEG C, humidity 50%, under the conditions of 300mm/min, fracture tensile strength 10Mpa.

19. the check valve assembly described in any one of a kind of compressor for refrigeration, including claim 1-11, alternatively, according to power Profit requires the damping type valve base piece described in 12-18, at least one the intake valve of compressor and air bleeding valve.

20. a kind of refrigerator, including the compressor described in claim 19.

21. a kind of manufacturing method of valve module, the valve module include：Valve base piece has first surface and valve opening；Valve, tool There is second surface, wherein the first surface is oppositely arranged with the second surface, and when the valves are closed, the second surface supports By the first surface, the valve is made to occlude the valve opening, when valve is open, the second surface and the first surface point It opens, to allow fluid to pass through from the valve opening,

The valve module manufacturing method includes the following steps：

The first surface side is set in the valve base piece ontology, and the second surface side is set in the valve body, Apply damping material to being less than in alternative one.

22. valve module manufacturing method according to claim 21,

Wherein, using rubber damping material as damping material.

23. valve module manufacturing method according to claim 22, further includes following step,

Groove is opened up in the side that the first surface is arranged in the valve base piece ontology, and, the portion of die cavity is constituted using groove Point, injection molding wherein forms rubber damping material pad.

24. valve module manufacturing method according to claim 23, wherein the groove is formed in the valve opening edge, About 0.8 millimeter to about 1.2 millimeters of groove depth, the outer profile of the groove are consistent at least local outer profile of the valve.

25. valve module manufacturing method according to claim 24, wherein wherein, the groove is about 1 millimeter deep.

26. the valve module manufacturing method according to claim 24 or 25, wherein in rough surface is arranged in the groove.

27. the valve module manufacturing method according to any one of claim 24-26, wherein mold is used, in the groove Predetermined shape is sentenced to be molded to form the rubber damping material pad.