CN1769702A - Valve device of hermetic compressor - Google Patents

Valve device of hermetic compressor Download PDF

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Publication number
CN1769702A
CN1769702A CN 200410072681 CN200410072681A CN1769702A CN 1769702 A CN1769702 A CN 1769702A CN 200410072681 CN200410072681 CN 200410072681 CN 200410072681 A CN200410072681 A CN 200410072681A CN 1769702 A CN1769702 A CN 1769702A
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China
Prior art keywords
valve
refrigerant
valving
hermetic compressor
suction
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CN 200410072681
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Chinese (zh)
Inventor
李垣昔
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Taizhou LG Electronics Refrigeration Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Priority to CN 200410072681 priority Critical patent/CN1769702A/en
Publication of CN1769702A publication Critical patent/CN1769702A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a valve device of closed-type compressor, which consists of drainage valve 150a and coat pad 220, wherein the drainage valve 150a covers the outlet 110b of valve board 110, which switches the outlet 110b selectively; the coat pad 220 is set between the drainage side of valve board 110 and covered valve board 110 and roof plate 170 to separate the sucked coolant and drained coolant, which forms the stop 300 on one side to control the starting degree of drainage valve 150a. The invention reduces the assemblage procedure of closed-type compressor valve device, which improves the production efficiency and reduces the making cost of compressor.

Description

The valving of hermetic compressor
Technical field
The present invention relates to hermetic compressor, more particularly, relate to the hermetic compressor valving that control cylinder sucked and discharged refrigerant.
Background technique
Hermetic compressor comprise the to-and-fro motion compression refrigerant compression mechanical part the mechanism portion of power is provided and makes compression mechanical part and mechanism portion be housed in inner seal container to compression mechanical part.Such hermetic compressor is one of basic element of character that constitutes refrigeration system such as refrigerator, plays the effect that the low-temp low-pressure gaseous coolant is converted to the High Temperature High Pressure gaseous coolant.And such change of state is to be realized by the compressive force in the cylinder interior pistons reciprocating.
Fig. 1 is the internal structure sectional drawing of general hermetic compressor.Fig. 2 shows the hermetic compressor valving decomposing state of prior art.
As shown in the figure, hermetic compressor constitutes its outward appearance by bottom container 1a and upper container 1b, and said vesse 1a, 1b are mutually permanently connected and weld, and make the inner space become closed state.That is, at the certain confined space of the inner formation of said vesse 1a, 1b.In the inner mechanism portion 4 that constitutes by stator 2 and rotor 3 of installing of such container 1a, 1b.
Stator 2 is made by twine many group coils in groove, and rotor 3 is rotatably inserted in its inside.Central vertical direction formation at rotor 3 is pressed into hole 3a, is pressed into the bent axle 5 that will illustrate below being pressed in the 3a of hole.In addition, at the downside of stator 2 a plurality of springs (S) are arranged, above-mentioned a plurality of springs (S) are delivered to the vibrations on the stator 2 when absorbing rotor 3 rotations.That is, the vibrations of rotor 3 are absorbed by spring (S), can prevent shock transfer to bottom container 1a, and prevent from again to be delivered on the electrical equipment such as refrigerator that hermetic compressor is installed.
There are a plurality of compression mechanism parts the top of mechanism portion 4.Bent axle 5 is pressed into being pressed in the 3a of hole of rotor 3, with rotor 3 rotations, plays a part the rotating force of rotor 3 is delivered on the following piston that will illustrate.And, in the upper end of bent axle 5 eccentric part 5a is arranged, so piston to-and-fro motion under the rotating force effect of bent axle 5.The below of eccentric part 5a also has equilibrium block 5b.The oil feeder (oil feed, not shown) of the oil (not shown) that sucks bottom container 1a bottom storage on bent axle 5, also is equipped with.That is, if bent axle 5 rotations, oil feeder is from bottom container 1a bottom suction oil, and the oil that suction is come up is splashed to eccentric part 5a.Cylinder 7, piston 8 and the connecting rod 9 etc. that will illustrate below the oil that splashes is supplied with.
Bent axle 5 rotatably inserts in the axle supporting wheel hub 6a of cylinder block 6.That is rotation when, bent axle 5 slides along the internal face of axle supporting wheel hub 6a.Cylinder 7 is integrally formed on the cylinder block 6 that inserts fixed crankshaft 5.Cylinder 7 is places of compression refrigerant, and portion forms the pressing chamber with the following piston that will illustrate 8 correspondences within it.That is piston 8 reciprocating while compression refrigerant in the pressing chamber of cylinder 7.And the refrigerant of compression is discharged to outside the pressing chamber by piston 8.
Between the eccentric part 5a of piston 8 and bent axle 5 connecting rod 9 is arranged, connecting rod 9 plays a part the vertical rotating force of eccentric part 5a is converted to horizontal motion.In order to function as described above, connecting rod 9 is to form integral body with the minor diameter part of 8 combinations of piston and the large-diameter portion of the eccentric part 5a that is connected bent axle 5.
Insert fixed axle sleeve (sleeve) 10 between the eccentric part 5a of the large-diameter portion of connecting rod 9 and bent axle 5.The outer circumferential face of axle sleeve 10 is close to the inner peripheral surface of large-diameter portion, and inner peripheral surface slides around the eccentric part 5a of bent axle 5.That is, axle sleeve 10 plays a part to make the large-diameter portion of connecting rod 9 and eccentric part 5a to be close to.
In addition, at the front end mounted valve device 11 of cylinder 7.The pressing chamber that valving 11 plays control cylinder 7 sucks the effect of discharging compression refrigerant in refrigerant and the pressing chamber.Though valving 11 is diagram not, it includes suction valve and expulsion valve and valve plates etc.In addition, in the outside of valving 11 cylinder head 12 is installed.Cylinder head 12 is installed the absorbing silencer 13 that will illustrate for the refrigerant of the refrigerant that makes suction and discharge is separated from each other below the fixed installation of one side.
Absorbing silencer 13 plays and reduces the effect that sucks coolant noise, prevents from simultaneously to be heated when refrigerant is in the pressing chamber that enters cylinder 7 by cylinder head 12.In order to function as described above, absorbing silencer 13 is general with plastics (plastic) making, also can make of ferrous materials.
In addition, on cylinder block [cylinder block] 6, more particularly, near the position of cylinder 7 exhaust silencer (not shown) is set, exhaust silencer is connected with swan-neck 14.Swan-neck 14 plays a part to discharge to the compressor exterior guiding High Temperature High Pressure refrigerant of compression in cylinder 7.In addition, swan-neck 14 is repeatedly to be bent to form the vibrations that the mobile refrigerant of reduction swan-neck 14 inside causes.Swan-neck 14 inserts in coil (coilweight) 14a.Coil (coil weight) 14a along the circumferential direction twines and a kind of spring made from thin wire, is wrapped on the swan-neck 14, prevents swan-neck 14 vibrations.
Unaccounted symbol 15 is the suction pipes that suck refrigerant in the accompanying drawing, and symbol 16 is the discharge tubes of discharging outside compressor by the refrigerant of swan-neck 14 guiding.
In addition, valving by the front be formed with the groove part 21a of certain groove valve plates 21, be housed in expulsion valve 23 in the groove part 21a, be close to be installed in the valve spring 25 above the expulsion valve 23 and to be installed in and prevent in the groove part 21a that the snubber 27 that expulsion valve 23 and valve spring 25 move from constituting.In addition, be equipped with packing ring 29 between valve plates 21 and the cylinder head 12, and suction valve (V) be installed at the back side of valve plates 21.
A certain size exhaust port 21b is protruded in formation in the groove part 21a of valve plates 21 from the bottom surface, forms the seat surface 21c of promising installation expulsion valve 23 1 sides at the edge of exhaust port 21b.And a side of valve plates 21 connects and is formed with suction port 21d.At the expulsion valve 23 of accommodating in the groove part 21a by being installed in the 23a of switching portion on the exhaust port 21b seat surface 21c and constituting with the fixing part 23b that snubber 27 fixes.Be provided with valve spring 25 above the expulsion valve 23.Valve spring 25 is by being placed on the fixing part 25a above the expulsion valve 23 fixing part 23b and constituting for the crooked curved part 25b of the several angle that tilts upward.Expulsion valve 23 and valve spring 25 overlapping placements, snubber 27 is installed in the top.
But the valving of above-mentioned prior art has following shortcoming.
As mentioned above, valving 11 comprises by a plurality of parts formations such as the valve plates 21 that is formed with groove part 21a, expulsion valve 23, valve spring 25, snubber 27, packing ring 29 and suction valve (V).That is, the structure of valving 11 is too complicated.Like this, a plurality of parts have increased and the corresponding assembling procedure of its quantity, and therefore, having a plurality of parts is shortcomings that assembling procedure complicates.
And a plurality of parts also will be distinguished making separately, so the shortcoming that the fabricating cost of compressor rises finally occurs.In addition, assembling procedure increases and the activity duration prolongs the decline that finally causes compressor manufacturing efficiency.
In addition, in the process of discharging refrigerant, expulsion valve 23 and valve spring 25 collide mutually, and produce impact noise.This just makes the seal compressor noise in the running increase, and finally causes mainly using the noises such as refrigerator of hermetic type compressor to increase.
Summary of the invention
The present invention proposes for the shortcoming that solves above-mentioned prior art, and its purpose is, provides a kind of structure simpler valving, and a kind of structure that prevents to produce in the expulsion valve impact noise in the refrigerant discharge process is provided.
Hermetic compressor valving involved in the present invention (valve apparatus forhermetic compressor) includes valve plates, suction valve, expulsion valve, top cover and coating liner.Wherein, valve plates is installed in cylinder one side of reciprocating motion of the pistons, and is formed with suction port that makes refrigerant flow into cylinder interior and the exhaust port of discharging compression refrigerant from cylinder interior; The cylinder side selectivity that suction valve is installed in valve plates opens and closes suction port; The exhaust port that expulsion valve hides valve plates optionally opens and closes exhaust port; Top cover covers the discharge oral-lateral of valve plates, separates to suck refrigerant and discharge refrigerant; The coating liner is installed between valve plates and the top cover, and is formed with the snubber of control expulsion valve opening degree in one side integral body.
The coating liner is constituted best by steel plate and the coating that forms in steel plate outside, and the coating liner to have certain elasticity be best
Snubber forms best across the coating liner, and at least to be bent to form to best more than 1 time.
Hermetic compressor valving of the present invention provides than the simpler structure of conventional art to constitute valving, and has had following good effect:
1) compares with the valving of standard and omitted valve spring and snubber, so valving is simple in structure.Thus, simplify the assembling procedure of valving, can enhance productivity and reduce cost for manufacturing compressor.
2) because snubber whole formation on the coating liner needn't be provided with independent snubber, also can control the running of expulsion valve easily.
3) the coating liner of formation valving of the present invention is the form that is wrapped steel plate by outer cover.Therefore, even apply certain external force at the coating liner, such as extruding coating liner in the connection procedure of retaining screw, the coating liner can be not damaged yet.
4) expulsion valve contacts below the snubber that is wrapped by outer covering layer, so can prevent to produce the phenomenon that produces noise because of being subjected to impacting in operation process.
Description of drawings
Fig. 1 is the internal structure sectional drawing of general hermetic compressor.
Fig. 2 is the hermetic compressor valve device structure exploded perspective view of prior art.
Fig. 3 is the valving exploded perspective view of preferred embodiment of the present invention.
Fig. 4 is the coating liner oblique drawing of Fig. 3.
The explanation of main reference character:
100: valving, 110: valve plates [valve plate],
110a: suction port, 110b: exhaust port,
110c: joining hole, 130: suck valve plate,
130a: suction valve, 130b: discharge stream,
150: discharge valve plate, 150a: the noise reduction chamber cap,
170: top cover [head cover], 200: coating liner [coating gasket],
210: steel plate [steel], 230: outer covering layer,
300: snubber [retainer].
Embodiment
Specify hermetic compressor valving of the present invention below in conjunction with drawings and Examples.
Fig. 3 is the valving exploded perspective view of the embodiment of the invention, the coating liner oblique drawing of Fig. 4 displayed map 3.
Hermetic compressor (not diagram) is the mobile refrigerant in the compression refrigerant circulatory system, by seal container, be installed in seal container inside and electric energy be converted to the mechanism portion of kinetic energy and utilize the compression mechanical part of the kinetic energy compression refrigerant of mechanism portion conversion to constitute.And compression mechanical part includes the valving 100 that control cylinder sucks refrigerant and discharges refrigerant.
Valving 100 is installed in the place ahead of cylinder (not shown), and control sucks refrigerant and controls the refrigerant of being discharged compression by piston (not shown) from cylinder interior to cylinder interior.
As shown in Figure 3, valving 100 comprises by having certain thickness valve plates 110, the suction valve plate 130 of being close to installation at the back side of valve plates 110, the discharge valve plate 150 of being close to installation in the front of valve plates 110, cover the top cover 170 of discharging valve plate 150 fronts, be clipped in the coating liner 200 of discharging between valve plate 150 and the top cover 170.
Valve plates 110 roughly is the Square consisting of two isosceles right-angled triangles shape, and its inside is formed with suction port 110a that sucks refrigerant and the exhaust port 110b that discharges compression refrigerant from cylinder interior respectively.And, also have joining hole 110c on 110 4 jiaos of the valve plates, insert retaining screw (B) in the joining hole 110c and make valve plates 110 be positioned at the place ahead of cylinder (not shown).
Suction valve plate 130 has the profile corresponding shape with valve plates 110, its inner tangible all-in-one-piece suction valve 130a.The suction port 110a of suction valve 130a open and close valve door-plate 110 plays control sucks refrigerant from suction port 110a effect.The end of suction valve 130a is fixedly connected on and sucks on the valve plate 130, and suction valve 130a is reference switches with the connecting end.
In addition, perforation forms drain passageway 130b on sucking on the valve plate 130 near the position of suction valve 130a.Sucking the reason that also is provided with drain passageway 130b on the valve plate 130 is that the refrigerant of discharging from cylinder interior moves to valve plates 110 by the drain passageway 130b that sucks valve plate 130 because suck the front that valve plate 130 is installed in cylinder (not shown).
Suck the joining hole 130c that also has on 130 4 jiaos of the valve plates with the joining hole 110c correspondence of valve plates 110.
Discharge valve plate 150 and have corresponding with the profile of valve plates 110 tetragonal tabularly, portion is integrally formed within it for the expulsion valve 150a of cut-off valve door-plate 110 exhaust port 110b.Expulsion valve 150a one end connects with discharging valve plate 150, so expulsion valve 150a is reference switches with the connection part, selectivity opens and closes exhaust port 110b.And the switch of expulsion valve 150a is controlled by the following snubber that will illustrate.
In addition, the below of expulsion valve 150a also has the suction path 150b with the suction port 110a correspondence of valve plates 110.Therefore, flow to the inner refrigerant of cylinder (not shown),, enter into cylinder interior by sucking the suction valve 130a that opens on the valve plate 130 through after sucking path 150b and suction port 110a.In addition, discharging the joining hole 150c that also has on four jiaos of valve plate 150 with the joining hole 110c correspondence of valve plates 110.
Top cover 170 plays the effect of discharging valve plate 150 fronts that covers, and more particularly, plays the effect of coating liner 200 outsides that will illustrate below covering.Such top cover 170 forms profile corresponding to valve plates 110, is best but also form corresponding to the structure of discharging valve plate 150.Though do not illustrate, the inside of above-mentioned top cover 170 makes in addition and sucks refrigerant and discharge the separated partition wall of refrigerant.And the quadrangle that connects top cover 170 becomes joining hole 170c.
Discharge between valve plate 150 and the top cover 170 and accompany coating liner 200.Coating liner 200 plays and prevents that refrigerant is from discharging the effect that valve plate 150 and top cover 170 are revealed.Extremely accompanying coating liner 200 so discharge 170 of valve plate 150 and top covers, is because the refrigerant of discharging behind the expulsion valve 150a of unlatching discharge valve plate 150 is inner by the high pressure refrigerant of Piston Compression at cylinder (not shown).
As shown in Figure 4, it is tabular that coating liner 200 roughly is quadrangle.Coating liner 200 is made of outer covering [coating] layer 230,230 ' of steel plate portion 210 and steel plate portion 210.That is, coating liner 200 has the form that plate-steel liner is wrapped by outer covering layer 230,230 '.
Above-mentioned outer covering layer 230,230 ' has certain flexible material with natural rubber or synthetic rubber etc., especially, have cold-resistant matchmaker's property and oil resistance.That is, outer covering layer 230,230 ' can not be dissolved by refrigerant or oil, and competence exertion prevents the effect of leaking.
In addition, the snubber 300 across coating liner 200 inside is formed on the coating liner 200.Snubber 300 forms whole to be bent to form more than at least 1 time on coating liner 200 with coating liner 200.
Such snubber 300 is with the expulsion valve 150a position correspondence of discharging valve plate 150.Therefore, if expulsion valve 150a opens, below the end of the expulsion valve 150a contact snubber 300, controlled opening degree.In addition, the expulsion valve 150a that snubber 300 is operated promotes and crooked, and this realizes by the certain flexible material of snubber 300 usefulness.
In addition, there is the path of suction 200b snubber 300 belows on the coating liner 200.Suck the suction path 150b correspondence of path 200b with the suction port 110a and the discharge valve plate 150 of valve plates 110.And, also have joining hole 200c on four jiaos of coating liner 200.
Come the process of assembled valve door device 100 as follows with above-mentioned a plurality of parts.
At first, insert retaining screw (B) in the joining hole 170c of top cover 170.At this moment, make the screw head of retaining screw (B) be positioned at the outside, lead screw portion is towards the rear.In this state, coating liner 200, discharge valve plate 150, valve plates 110 and suck after valve plate 130 is installed in the back of top cover 170 successively, being screwed into retaining screw (B), finish assembling thus in each joining hole.So assembling, above-mentioned suction valve plate 130 are positioned at rear.
Then, the top cover 170 of like this assembling is close to the place ahead of cylinder (not shown), the fixing above-mentioned screw (B) that is connected and fixed, the then firm the place ahead that is fixed on cylinder of valving 100.And, such assembling, integrally formed snubber 300 is positioned at the running direction of expulsion valve 150a on coating liner 200.
In this state, the operation process of the process of suction refrigerant and discharge refrigerant and each component parts is as follows.
Absorbing silencer (not shown) by top cover 170 1 sides sucks refrigerant, then sucks refrigerant and enters through the suction path 200b of coating liner 200, the suction path 150b that discharges valve plate 150 and the suction port 110a of valve plates 110.Then, open the suction valve 130a refrigerant that sucks valve plate 130 and flow into cylinder (not shown) inside, compressed by piston (not shown) afterwards.
If piston-advance, compressed refrigerant promotes suction valve 130a, and suction valve 130a is closed.Then, discharged by the drain passageway 130b of suction valve plate 130 and the exhaust port 110b of valve plates 110 by the refrigerant of Piston Compression.Afterwards, after the expulsion valve 150a that discharges valve plate 150 is stated in unlatching, discharge to discharge one side of top cover 170.
As mentioned above, if expulsion valve 150a is promoted by refrigerant and opens, expulsion valve 150a is close to below the snubber 300 of coating liner 200.And the expulsion valve 150a that snubber 300 is operated promotes and bending.Afterwards, discharge end when refrigerant, snubber 300 promotes expulsion valve 150a by elastic force, and expulsion valve 150a is moved down, and expulsion valve 150a closes exhaust port 110b rapidly.Therefore, exhaust port 110b closes, and prevents the refrigerant adverse current.
The valving of the aforesaid hermetic compressor that the present invention relates to is a basic fundamental thought to be equipped with the integrally formed coating liner of snubber.Therefore, in basic fundamental thought range of the present invention, those of ordinary skill in the art can propose the various deformation example.

Claims (5)

1, a kind of valving of hermetic compressor is characterized in that, includes valve plates, suction valve, expulsion valve, top cover and coating liner; Valve plates is installed in cylinder one side of reciprocating motion of the pistons, and is formed with suction port that makes refrigerant flow into cylinder interior and the exhaust port of discharging compression refrigerant from cylinder interior; The cylinder side that suction valve is installed in valve plates optionally opens and closes suction port; The exhaust port that expulsion valve hides valve plates optionally opens and closes exhaust port; Top cover covers the discharge oral-lateral of valve plates, separates to suck refrigerant and discharge refrigerant; Between coating liner mounted valve plate and the top cover, and be formed with the snubber of control expulsion valve opening degree in one side integral body.
2, the valving of hermetic compressor according to claim 1 is characterized in that, the coating liner is made of steel plate portion and the outer covering layer that forms in steel plate portion outside.
3, the valving of hermetic compressor according to claim 2 is characterized in that, the coating liner has certain elasticity.
4, the valving of hermetic compressor according to claim 1 is characterized in that, snubber forms across the coating liner.
5, the valving of hermetic compressor according to claim 4 is characterized in that, above-mentioned snubber forms more than 1 time crooked at least.
CN 200410072681 2004-11-05 2004-11-05 Valve device of hermetic compressor Pending CN1769702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410072681 CN1769702A (en) 2004-11-05 2004-11-05 Valve device of hermetic compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410072681 CN1769702A (en) 2004-11-05 2004-11-05 Valve device of hermetic compressor

Publications (1)

Publication Number Publication Date
CN1769702A true CN1769702A (en) 2006-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200410072681 Pending CN1769702A (en) 2004-11-05 2004-11-05 Valve device of hermetic compressor

Country Status (1)

Country Link
CN (1) CN1769702A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279144A (en) * 2014-10-23 2015-01-14 安徽美芝制冷设备有限公司 Cylinder head component and compressor with same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279144A (en) * 2014-10-23 2015-01-14 安徽美芝制冷设备有限公司 Cylinder head component and compressor with same

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ASS Succession or assignment of patent right

Owner name: TAIZHOU LG ELECTRONICS FREEZER CO., LTD.

Free format text: FORMER OWNER: LG ELECTRONICS ( TIANJIN ) ELECTRICAL APPLIANCES CO., LTD.

Effective date: 20091225

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20091225

Address after: No. 2 Yingbin Road, Taizhou Economic Development Zone, Jiangsu Province, China: 225300

Applicant after: Taizhou LG Electronics Refrigerator Co., Ltd.

Address before: Beichen District, Tianjin Xing Dian Highway Code: 300402

Applicant before: Lejin Electronic and Electric Appliance Co., Ltd. (Tianjin)

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication