CN1232730C - Discharge valve apparatus of closed compressor - Google Patents
Discharge valve apparatus of closed compressor Download PDFInfo
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- CN1232730C CN1232730C CN 02117510 CN02117510A CN1232730C CN 1232730 C CN1232730 C CN 1232730C CN 02117510 CN02117510 CN 02117510 CN 02117510 A CN02117510 A CN 02117510A CN 1232730 C CN1232730 C CN 1232730C
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- valve
- discharge valve
- plate
- fixture
- liner
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Abstract
The present invention discloses a discharge valve apparatus of closed compressor, which is composed of a valve disk, a discharge valve plate, a pad forming an elastic coating on a metal plate, a fixer integrated with the pad and an upper cover, wherein the fixer controls the action of the discharge valve plate. The discharge valve apparatus of closed compressor reduces impact noise generated by the impact of the metal discharge valve plate and the elastic coating when the action of the discharge valve plate is controlled.
Description
Technical field
The invention belongs to closed compressor, particularly a kind of discharge valve apparatus of closed compressor.
Background technique
Fig. 1 be prior art the internal structure sectional view of general closed compressor.As shown in the figure, upper container 1t and bottom container 1b constitute seal container 1, and the inside of seal container 1 is provided with framework 2, is fixed with stator 3 on the framework 2, and framework 2 is supported on seal container 1 inside by spring 2S.The upper end portion of spring 2S be inserted in framework 2 below.Or rather, be on the detent projection below stator 3.Insert on the detent projection that is fixed on the bottom container 1b underpart of spring 2S.For support frame 2 stably, at framework 2 four jiaos four spring 2S are set and support.
The central authorities that connect framework 2 are provided with crankshaft 5.Be wholely set rotor 4 with crankshaft 5, crankshaft 5 interacts by the electro permanent magnetic of rotor 4 between stator 3 and rotates.
The upper end of crankshaft 5 is provided with eccentric shaft 5b, and eccentric shaft 5b is located at the rotating center eccentric position of crankshaft 5.Eccentric shaft 5b is provided with counterweight 5c in the other direction.Framework 2 is supporting crankshaft 5 rotations.
The inside of crankshaft 5 is provided with oily path 5a.By oily path 5a, disperse in the top that makes the oily L of the bottom surface of seal container 1 be sent to framework 2.The underpart of crankshaft 5 is provided with pump 5d, and oily L is sent to oily path 5a.
Fig. 2 is the sectional view of the valving relevant portion of prior art closed compressor.Below with reference to Fig. 2 the main structure of valve assembly body 9 is described.The front end of cylinder barrel 6 is provided with valve dish 9p.Valve dish 9p is provided with mounting groove 9g, and mounting groove 9g lays the discharge parts of compressed media in the control pressing chamber 6 '.The side of valve dish 9p is provided with and connects exhaust port 9e, and opposite side is provided with and connects suction port 9i.
As shown in the figure, mounting groove 9g is provided with the valve plates 9v that opens and closes exhaust port 9e.Fig. 3 is the valve spring of formation closed compressor valving of prior art and the planimetric map of valve plates structure.As shown in Figure 3, the front end of valve plates 9v is the 9v ' of switching portion, is arranged on the corresponding position with exhaust port 9e, opens and closes exhaust port 9e; The other end of valve plates 9v is fixing part 9v ", be fixed on the fixture 9r.
Fig. 4 is the front elevation of superstructure of the discharge valve fixture of another one prior art.As shown in the figure, fixture also can form one with loam cake.The inside of loam cake 10 is formed with the exhaust cavity 54 of discharging the working fluid after compressing, and a side of fixture 9r and exhaust cavity 54 forms one.At this moment, fixture 9r can make and discharge valve 9v and valve spring 9s corresponding shape, with control discharge valve 9v and valve spring 9s.11 ' is that baffler is laid portion.
To in the said structure, the process that the medium after the inside of pressing chamber 6 ' sucks medium and will compress is discharged describes below.Piston 7 moves to lower contact from upper contact, and when carrying out suction stroke, pressing chamber 6 ' internal pressure is relatively low, so, suck medium by suction port 9i to the inside of pressing chamber 6 '.At this moment, valve plates 9v is attracted on the valve dish 9p, and closes exhaust port 9e by the low pressure of pressing chamber 6 ' inside.
When piston 7 from lower contact when upper contact moves, form pressure by pressing chamber 6 ', suction port 9i is closed.Under above-mentioned state, piston 7 continues to move to upper contact, and medium is compressed.When piston 7 reaches upper contact, by pressure, push the medium after the compression to valve plates 9v, exhaust port 9e opens, and medium is discharged to the outside of pressing chamber 6 '.
At this moment, open excessively in order to prevent valve plates 9v, valve spring 9s resets rapidly, closes exhaust port 9e, the action of limitation part 9r ' the limiter valve spring 9s of fixture 9r.
The valve assembly body of above-mentioned prior art compressor has following shortcoming:
Summary of the invention
In order to overcome the problem of above-mentioned existence, the discharge valve that the invention provides a kind of closed compressor is put, and purpose is to make the structure of discharge valve of closed compressor simpler, the noise that produces when reducing the discharge valve action of closed compressor simultaneously.
To achieve these goals, the present invention adopts following scheme to implement: the valve dish is provided with inlet hole and tap hole; On the tap hole of valve dish, be provided with the expulsion valve door-plate of switching; Liner forms one with the fixture of the action of control expulsion valve door-plate, prevents to leak; Loam cake is fixed on the valve dish across liner, and loam cake is provided with exhaust cavity that is connected with tap hole and the suction portion that is connected with inlet hole.
Above-mentioned liner is the parts that form the coating layer of elastic material on the two sides of sheet metal.
Perforation is formed with inlet hole and exhaust cavity interconnecting part on the above-mentioned liner, and inlet hole is connected with the suction portion of loam cake, and the exhaust cavity interconnecting part forms and the exhaust cavity corresponding shape; Fixture is formed on the position corresponding with the expulsion valve door-plate, and front end is provided with link bridge, and link bridge is used to improve fixture intensity.
In sum, effect of the present invention is as follows: in the valving of closed compressor, and the fixture of the coating layer by having elastic material, the discharge valve of control metal material has reduced noise and vibration.To control the fixture of the expulsion valve door-plate that metal material makes exactly and be integral with the liner that on sheet metal, forms the coating layer of elastic material, when the expulsion valve door-plate move, metal material bump coating layer, the noise of generation when having reduced the work of expulsion valve door-plate.
Because liner and fixture form one, formation discharge valve apparatus components number is reduced relatively, improved packaging efficiency.
Description of drawings
Fig. 1 is the internal structure sectional view of the closed compressor of prior art.
Fig. 2 is the sectional view of the valving relevant portion of prior art closed compressor.
Fig. 3 is the valve spring of prior art valving and the planimetric map of valve plates structure.
Fig. 4 is the front elevation of superstructure of the discharge valve fixture of another one prior art.
Fig. 5 is the exploded perspective view of the discharge valve apparatus example structure of closed compressor of the present invention.
Fig. 6 is the sectional view that constitutes embodiment of the invention valve dish.
Among the figure:
1: seal container 1t: upper container
1b: bottom container 2: framework
2S: spring 3: stator
4: rotor 5: crankshaft
5a: oily path 5b: eccentric shaft
5c: counterweight 5d: pump
6: cylinder barrel 6 ': pressing chamber
7: piston 8: connecting rod
9: valve assembly body 9e: exhaust port
9g: mounting groove 9i: suction port
9p: valve dish 9r: fixture
9r ': limitation part 9s: valve spring
9v: valve plates 9v ': switching portion
9v ": fixing part 10: loam cake
11: absorbing silencer 11 ': baffler is laid portion
12: suction pipe 13: discharge tube
31: metal sheet 31 ': coating layer,
32: inlet hole 34: tap hole
36: secure bond hole 40: liner
42: the inlet hole 44 on the liner: exhaust cavity interconnecting part
46: the secure bond hole 49 on the liner: link bridge
54: exhaust cavity 56: on the secure bond hole that covers
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail: Fig. 5 is the exploded perspective view of example structure of the discharge valve apparatus of closed compressor of the present invention, and Fig. 6 is the sectional view that constitutes embodiment of the invention valve dish.As shown in the figure, valve dish 9p is installed on the cylinder barrel 6 of pressing chamber, and valve dish 9p is made by dimetric plate-shape metal material.Valve dish 9p goes up to connect and is provided with inlet hole 32 and tap hole 34.Inlet hole 32 is used for to pressing chamber 6 ' transmission medium; Medium after tap hole 34 will compress in pressing chamber is discharged to pressing chamber 6 ' outside.On the tap hole of valve dish, be provided with the expulsion valve door-plate of switching; Connect on four jiaos of valve dish 9p to form and be useful on the secure bond hole 36 that is fixed on the cylinder barrel.Inlet hole 32 opens and closes by the lip-deep suction valve door-plate of valve dish 9p that is located at pressing chamber, and tap hole 34 opens and closes by the expulsion valve door-plate 9v that is located at suction valve door-plate opposite.The face that is provided with the valve dish 9p of expulsion valve door-plate 9v is provided with liner 40.Liner forms one with the fixture of the action of control expulsion valve door-plate, the effect of liner 40 be prevent and following loam cake 50 between leakage.As shown in Figure 6, at the coating layer 31 ' of the flexible material of coated on both sides of metal sheet 31, constitute valve dish 9p.Coating layer adopts the rubber of good heat resistance.
Be formed with fixture 9r on the exhaust cavity interconnecting part 44 with expulsion valve door-plate 9v corresponding position.The action of fixture 9r control expulsion valve door-plate 9v.The front end of fixture 9r and expulsion valve door-plate 9v keeps specific spacing to be formed obliquely.In order to keep the intensity of fixture 9r, be formed with link bridge 49 at the front end of fixture 9r, link bridge 49 links the edge of liners 40.As shown in Figure 5, link bridge 49 prolongs to the front end both sides of fixture 9r.
Loam cake is fixed on the valve dish across liner, and loam cake is provided with the exhaust cavity that is connected with tap hole.Liner 40 is fixed on loam cake 50 on the valve dish 9p between loam cake 50 and valve dish 9p.The inside of loam cake 50 is provided with absorbing silencer and lays portion 11 ', and absorbing silencer is laid portion 11 ' and is communicated with the inlet hole 32 of valve dish 9p; The position corresponding with the exhaust cavity interconnecting part 44 of liner 40 has been provided with exhaust cavity 54.Behind the pressing chamber compressed media, the part of discharging by the action of expulsion valve door-plate 9v is an exhaust cavity 54.Connect the secure bond hole 56 that is formed with secure bond hole 36,46 correspondences on four jiaos of loam cake 50.Structure to the discharge valve apparatus of closed compressor of the present invention describes below.Valving of the present invention is under the state that valve dish 9p, expulsion valve door-plate 9v, liner 40 and loam cake 50 are arranged in order, and utilizes retaining screw to be fixed on the cylinder barrel by secure bond hole 36,46,56.
Working procedure to discharge valve apparatus describes below, lays portion 11 ' by absorbing silencer and sucks medium with inlet hole 42,32 in pressing chamber, compresses.Medium after the compression is along with the open tap hole 34 of expulsion valve door-plate 9v is discharged to exhaust cavity 54.The medium that is discharged to exhaust cavity 54 is sent to exhaust silencer by stream.
At this moment, the action of expulsion valve door-plate 9v is controlled by fixture 9r.The front end of fixture 9r restriction expulsion valve door-plate 9v, the open degree of pressure medium by tap hole 34 applies makes expulsion valve door-plate 9v carry out suitable switching.
Owing to carry out the compression cycle of medium repeatedly in pressing chamber, expulsion valve door-plate 9v needs constantly to open and close tap hole 34, and the front end of expulsion valve door-plate 9v and fixture 9r bump against.But be formed with the coating layer 31 ' of elastic material on the fixture 9r, so can fully cushion above-mentioned impact.
That is to say that the expulsion valve door-plate 9v of metal material impinges upon on the coating layer 31 ' of elastic material, bump against the noise that produces between the metal so reduced.
Claims (3)
1. the discharge valve apparatus of a closed compressor is characterized in that, valve dish (9p) forms inlet hole (32) and tap hole (34); On the tap hole (34) of valve dish, be provided with the expulsion valve door-plate (9v) of switching; Liner (40) forms one with the fixture (9r) of the action of control expulsion valve door-plate (9v), prevents to leak; Loam cake (10) is fixed on the valve dish (9p) across liner (40), and loam cake (10) is provided with exhaust cavity (54) that is connected with tap hole (34) and the suction portion that is connected with inlet hole.
2. the discharge valve apparatus of closed compressor according to claim 1 is characterized in that, liner (40) is the parts that form the coating layer (31 ') of elastic material on the two sides of sheet metal (31).
3. the discharge valve apparatus of closed compressor according to claim 1 and 2, it is characterized in that, liner (40) is gone up to connect and is formed with inlet hole (32) and exhaust cavity interconnecting part (44), inlet hole (32) is connected with the suction side of loam cake (10), and exhaust cavity interconnecting part (44) forms and exhaust cavity (54) corresponding shape; Fixture (9r) is formed on the position corresponding with expulsion valve door-plate (9v), and front end is provided with link bridge (49), and link bridge (49) is used to improve fixture intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117510 CN1232730C (en) | 2002-04-29 | 2002-04-29 | Discharge valve apparatus of closed compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117510 CN1232730C (en) | 2002-04-29 | 2002-04-29 | Discharge valve apparatus of closed compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1455107A CN1455107A (en) | 2003-11-12 |
| CN1232730C true CN1232730C (en) | 2005-12-21 |
Family
ID=29257250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02117510 Expired - Fee Related CN1232730C (en) | 2002-04-29 | 2002-04-29 | Discharge valve apparatus of closed compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1232730C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412363C (en) * | 2004-09-27 | 2008-08-20 | 乐金电子(天津)电器有限公司 | Arrangement for preventing piston collision with discharge valve of linear compressor |
| GB2577710B (en) | 2018-10-03 | 2022-12-14 | Lee Ventus Ltd | Methods and devices for driving a piezoelectric pump |
| GB2583688B (en) * | 2019-01-23 | 2022-02-09 | Ttp Ventus Ltd | Improved valve |
| WO2020128426A1 (en) | 2018-12-07 | 2020-06-25 | Ttp Ventus Ltd. | Improved valve |
| GB2576796B (en) | 2018-12-07 | 2020-10-07 | Ttp Ventus Ltd | Improved valve |
| GB2597942B (en) | 2020-08-10 | 2022-08-03 | Ttp Ventus Ltd | Pump for microfluidic device |
-
2002
- 2002-04-29 CN CN 02117510 patent/CN1232730C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1455107A (en) | 2003-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Taizhou LG Electronics Refrigerator Co., Ltd. Assignor: Lejin Electronic and Electric Appliance Co., Ltd. (Tianjin) Contract fulfillment period: 2005.12.30 to 2015.12.29 contract change Contract record no.: 2008320000752 Denomination of invention: Discharge valve apparatus of closed compressor Granted publication date: 20051221 License type: Exclusive license Record date: 20081010 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2005.12.30 TO 2015.12.29; CHANGE OF CONTRACT Name of requester: TAIZHOU LG ELECTRONICS FREEZER CO., LTD. Effective date: 20081010 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051221 |