CN201339571Y - Exhaust valve mechanism of compressor - Google Patents
Exhaust valve mechanism of compressor Download PDFInfo
- Publication number
- CN201339571Y CN201339571Y CNU2008202084016U CN200820208401U CN201339571Y CN 201339571 Y CN201339571 Y CN 201339571Y CN U2008202084016 U CNU2008202084016 U CN U2008202084016U CN 200820208401 U CN200820208401 U CN 200820208401U CN 201339571 Y CN201339571 Y CN 201339571Y
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- valve plate
- exhaust
- exhaust valve
- diameter
- exhaust port
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Abstract
The utility model discloses an exhaust valve mechanism of a compressor, which comprises a valve plate and exhaust valve plates; wherein at least one vent hole which passes through the valve plate is arranged on the valve plate; each vent hole corresponds to each exhaust valve plate; each exhaust valve plate is provided with a fixed end and a free end; the fixed end of the exhaust valve plate is fixed on the upper surface of the valve plate; and the free end thereof is covered on the corresponding vent hole; wherein the opening diameter of the vent hole on the upper surface of the valve plate is larger than that of the vent hole on the lower surface of the valve plate. By adopting the structure, the area of the small hole of the vent hole on the valve plate can be set smaller than that of the commonly used small hole, and the area of the large hole can be set slightly larger than or equal to that of the currently used large hole, therefore the opening speed of the exhaust valve plates is improved as well as maintaining or reducing the clearance of the compression chamber at the same time.
Description
Technical field
The utility model relates to automobile air conditioner compressor, more particularly, relates to the exhaust valve mechanism of automobile air conditioner compressor.
Background technique
Valve plate is contained in the end of cylinder, and suction valve chip, exhaust valve plate have a fixed end and valve plate to fix respectively, and another free end is suction port, the exhaust port of closed valve plate respectively.Valve block has elasticity, and free end is stressed can the back upset open the aperture.When compressor air suction, the suction valve chip free end is opened suction port, makes cooling gas carry out cylinder by the suction port on the valve plate, and the cooling gas in the cylinder becomes high pressure through Piston Compression, pushes the exhaust valve plate free end open, enters exhaust cavity by the exhaust port on the valve plate.
Notice of authorization number is mentioned a kind of manufacture method of valve plate for the Chinese patent of CN1280542C, its product that directly obtains is the bigger valve plate of roughness around a kind of suction port aperture, as shown in Figure 1, intakeport 24 peripheries have rough region 31, and this patent thinks that the existence of this rough region can stockpile lubricant oil and valve block can that be opened rapidly and prevent adhesion.
The patent No. is that the U. S. Patent of US5672053 is mentioned a kind of structure at valve opening (suction port or exhaust port) side fluting, as shown in Figure 2, valve plate upper air-vent 32 offer groove 36 with the contacted side of exhaust valve plate, air-flow part is overflowed by groove, can make speeding up that exhaust valve plate opens.
Valve block free end both sides pressure reduction is big more, it is fast more to open by the big more then valve block of air-flow of valve opening, and being provided with of rough region can be eliminated the adhesion around valve block free end and the valve plate aperture, can to a certain degree quicken opening of valve block; Groove the area of contact that can strengthen pressurized gas and valve block is set, yet the position that is applied to the moment maximum on the valve block should be the valve block free end, when groove extends near the valve block fixed end, less to the influence of valve block opening speed.In addition, special device is all passed through in the processing of rough region and groove.
The model utility content
It is simple that the utility model aims to provide a kind of processing, can effectively improve the exhaust valve mechanism of the speed that valve block opens again.
According to embodiment of the present utility model, a kind of exhaust valve mechanism of compressor is provided, comprise: valve plate, exhaust valve plate, there is at least one to run through the exhaust port of described valve plate on the valve plate, the corresponding exhaust valve plate of each exhaust port, each exhaust valve plate has fixed end and free end, the fixed end of exhaust valve plate is fixed on the upper surface of valve plate, the free end of exhaust valve plate covers on the corresponding exhaust port, wherein, exhaust port at the opening diameter of valve plate upper surface greater than the opening diameter of exhaust port at the valve plate lower surface.
The free-ended area of exhaust valve plate is greater than the area of exhaust port at the opening of valve plate upper surface.
In one embodiment, exhaust port is step-like, comprises cylindrical hole with first diameter that is positioned at the valve plate lower face side and the cylindrical hole with second diameter that is positioned at the valve plate upper surface side, and wherein second diameter is greater than first diameter.
In one embodiment, exhaust port is horn-like, comprises cylindrical hole that is positioned at the valve plate lower face side and the truncated cone hole that is positioned at the valve plate upper surface side, and wherein the diameter of the little bottom surface in truncated cone hole equates with cylindrical hole.
In one embodiment, exhaust port is the truncated cone hole, and the little bottom surface in this truncated cone hole is positioned at the valve plate lower face side, and the big bottom surface in this truncated cone hole is positioned at the valve plate upper surface side.
In one embodiment, the exhaust valve plate free end comprises the projection that stretches into exhaust port.Such as, exhaust port is step-like, comprises cylindrical hole with first diameter that is positioned at the valve plate lower face side and the cylindrical hole with second diameter that is positioned at the valve plate upper surface side, wherein second diameter is greater than first diameter; And the height of projection should be not more than the height of the cylindrical hole of second diameter.
The utility model provides a kind of processing simple, promptly reduces the adhesion in valve block and aperture, effectively improves the speed that valve block is opened, and can keep or reduce the clearance of compression chamber again, improves compression efficiency.Arrive the bottom when piston motion, remain between piston end surface and the valve plate at a matching gap, the exhaust port that exists on the valve plate in addition, accumulation result promptly is the volume after the gas in the cylinder is compressed, i.e. clearance, and clearance is more little, then compression degree is high more, and compression efficiency is also high more.Therefore, the area that reduces the valve plate upper air-vent can reach the purpose that reduces clearance.By top form, the aperture part area of valve plate exhaust port can be provided with forr a short time than what generally use at present, and big hole area is arranged to be slightly larger than or equal the situation of use at present, thereby when keeping or reducing the clearance of compression chamber, improves the speed that exhaust valve plate is opened.
Description of drawings
The above and other feature of the present utility model, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, in the accompanying drawings, identical reference character is represented identical feature all the time, wherein:
Fig. 1 has disclosed the front view of valve plate of the prior art;
Fig. 2 has disclosed the stereogram of valve plate of the prior art;
Fig. 3, Fig. 4, Fig. 5, Fig. 6 are the partial sectional views according to first embodiment's of the present utility model exhaust valve mechanism;
Fig. 7 is the sectional view according to second embodiment's of the present utility model exhaust valve mechanism;
Fig. 8 is the stereogram according to second embodiment's of the present utility model exhaust valve plate;
Fig. 9 is the sectional view according to the 3rd embodiment's of the present utility model exhaust valve mechanism.
Embodiment
First embodiment
Piston compressor comprises a plurality of cylinders, and piston to-and-fro motion in cylinder sucks cylinder with refrigerant gas, discharges cylinder after compression.As shown in Figure 3, Figure 4, valve plate 10 and exhaust valve plate 20 are formed exhaust valve mechanism.When cylinder bottom was arrived in piston motion, gas was compressed to minimum volume, and the interior pressure of cylinder this moment reaches the highest, and this minimum volume promptly is said clearance, reduces clearance and helps improving compression efficiency.
Between the exhaust port of exhaust valve plate 20 and valve plate 10 air-breathing and be compressed to setting value before should keep closed condition, do not have adhesion and when being setting value, should open immediately.Under the condition that pressure equates, pressure is directly proportional with area, and promptly working as pressurized gas, to act on the free-ended area of valve block big more, easy more valve block is opened.Exhaust valve plate comprises fixed end 21 and free end 22, and on valve plate 10, free end 22 can open or close exhaust port around fixed end 21 activities by compressor cylinder cover or screw in compression for fixed end 21.
In this embodiment, the exhaust port of valve plate 10 is arranged to step-like, near cylinder body one side, the lower face side that is valve plate 10 is the cylindrical hole 11 with first diameter, near exhaust valve plate 20 1 sides, the upper surface side that is valve plate 10 is to have cylindrical hole 12, the second diameters of second diameter greater than first diameter.In this embodiment, the degree of depth of the cylindrical hole 12 of second diameter is 1.1～2.2mm, effect by this cylindrical hole 12, the area that makes exhaust pressure act on the exhaust valve plate 20 is bigger, this pressure acts on the free end 22 of exhaust valve plate, so outlet valve improves the speed that the pressure change susceptibility improves, exhaust port is opened.
The area of the free end 22 of exhaust valve plate is greater than the open-topped area of valve plate 10 upper air-vents, promptly greater than the area of cylindrical hole 12, when exhaust port is closed, free end 22 and sealing contact mutually around the aperture, when exhaust port is opened, pressurized gas overflows rapidly between free end 22 and aperture towards periphery, and gas is arranged the exhaust cavity to compressor.
It is first embodiment's distortion that Fig. 5 and Fig. 6 can be considered as, and in the embodiment shown in fig. 5, exhaust port is truncated cone hole 30, and the little bottom surface in this truncated cone hole 30 is positioned at valve plate 10 lower face side, and the big bottom surface in this truncated cone hole is positioned at valve plate 10 upper surface side.
In the embodiment shown in fig. 6, exhaust port is horn-like, comprises cylindrical hole 31 that is positioned at the valve plate lower face side and the truncated cone hole 32 that is positioned at the valve plate upper surface side, and wherein the diameter of the little bottom surface in truncated cone hole 32 equates with cylindrical hole.
Fig. 5 and embodiment shown in Figure 6 have the consistent effect of step hole with Fig. 3, embodiment shown in Figure 4.
Sum up, this exhaust valve mechanism comprises valve plate and exhaust valve plate, there is at least one to run through the exhaust port of valve plate on the valve plate, the corresponding exhaust valve plate of each exhaust port, each exhaust valve plate has fixed end and free end, the fixed end of exhaust valve plate is fixed on the upper surface of valve plate, the free end of exhaust valve plate covers on the corresponding exhaust port, and, greater than the opening diameter of exhaust port at described valve plate lower surface, and the free-ended area of exhaust valve plate is greater than the area of exhaust port at the opening of valve plate upper surface at the opening diameter of valve plate upper surface for exhaust port.
Second embodiment
With reference to figure 7, shown in Figure 8, disclosed second embodiment of the present utility model, exhaust valve plate 20 free ends 22 form projection 23, and when exhaust port was closed, this projection stretched into exhaust port, reduces clearance with this.
The 3rd embodiment
Fig. 9 has disclosed the 3rd embodiment of the present utility model, in this embodiment, exhaust port is step-like, and the exhaust port that has with Fig. 3, first embodiment shown in Figure 4 has similar structure, is made of cylindrical hole 11 with first diameter and cylindrical hole 12 with second diameter.And the free end 22 of exhaust valve plate has projection 23, and the height of projection 23 is no more than the height of the cylindrical hole 12 with second diameter, and promptly projection 23 is arranged in bigger cylindrical hole.
The utility model provides a kind of processing simple, promptly reduces the adhesion in valve block and aperture, effectively improves the speed that valve block is opened, and can keep or reduce the clearance of compression chamber again, improves compression efficiency.Arrive the bottom when piston motion, remain between piston end surface and the valve plate at a matching gap, the exhaust port that exists on the valve plate in addition, accumulation result promptly is the volume after the gas in the cylinder is compressed, i.e. clearance, and clearance is more little, then compression degree is high more, and compression efficiency is also high more.Therefore, the area that reduces the valve plate upper air-vent can reach the purpose that reduces clearance.By top form, the aperture part area of valve plate exhaust port can be provided with forr a short time than what generally use at present, and big hole area is arranged to be slightly larger than or equal the situation of use at present, thereby when keeping or reducing the clearance of compression chamber, improves the speed that exhaust valve plate is opened.
The foregoing description provides to being familiar with the person in the art and realizes or use of the present utility model; those skilled in the art can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications or variation; thereby protection domain of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (7)
1. the exhaust valve mechanism of a compressor, comprise: valve plate, exhaust valve plate, there is at least one to run through the exhaust port of described valve plate on the valve plate, the corresponding exhaust valve plate of each exhaust port, each exhaust valve plate has fixed end and free end, and the fixed end of exhaust valve plate is fixed on the upper surface of valve plate, and the free end of exhaust valve plate covers on the corresponding exhaust port, it is characterized in that
Exhaust port at the opening diameter of described valve plate upper surface greater than the opening diameter of exhaust port at described valve plate lower surface.
2. exhaust valve mechanism as claimed in claim 1 is characterized in that,
The free-ended area of described exhaust valve plate is greater than the area of exhaust port at the opening of described valve plate upper surface.
3. exhaust valve mechanism as claimed in claim 1 is characterized in that,
Described exhaust port is step-like, comprises cylindrical hole with first diameter that is positioned at the valve plate lower face side and the cylindrical hole with second diameter that is positioned at the valve plate upper surface side, and wherein second diameter is greater than first diameter.
4. exhaust valve mechanism as claimed in claim 1 is characterized in that,
Described exhaust port is horn-like, comprises cylindrical hole that is positioned at the valve plate lower face side and the truncated cone hole that is positioned at the valve plate upper surface side, and the diameter of the little bottom surface in wherein said truncated cone hole equates with described cylindrical hole.
5. exhaust valve mechanism as claimed in claim 1 is characterized in that,
Described exhaust port is the truncated cone hole, and the little bottom surface in this truncated cone hole is positioned at the valve plate lower face side, and the big bottom surface in this truncated cone hole is positioned at the valve plate upper surface side.
6. exhaust valve mechanism as claimed in claim 1 is characterized in that,
Described exhaust valve plate free end comprises the projection that stretches into described exhaust port.
7. exhaust valve mechanism as claimed in claim 6 is characterized in that,
Described exhaust port is step-like, comprises cylindrical hole with first diameter that is positioned at the valve plate lower face side and the cylindrical hole with second diameter that is positioned at the valve plate upper surface side, and wherein second diameter is greater than first diameter;
The height of described projection should be not more than the height of the cylindrical hole of second diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202084016U CN201339571Y (en) | 2008-12-30 | 2008-12-30 | Exhaust valve mechanism of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202084016U CN201339571Y (en) | 2008-12-30 | 2008-12-30 | Exhaust valve mechanism of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339571Y true CN201339571Y (en) | 2009-11-04 |
Family
ID=41235118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202084016U Expired - Fee Related CN201339571Y (en) | 2008-12-30 | 2008-12-30 | Exhaust valve mechanism of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339571Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120266A (en) * | 2018-10-31 | 2020-05-08 | 广东美芝制冷设备有限公司 | Exhaust structure of compressor and compressor with same |
| CN111365216A (en) * | 2020-03-31 | 2020-07-03 | 西安交通大学 | Air valve assembly for reciprocating air compressor |
-
2008
- 2008-12-30 CN CNU2008202084016U patent/CN201339571Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120266A (en) * | 2018-10-31 | 2020-05-08 | 广东美芝制冷设备有限公司 | Exhaust structure of compressor and compressor with same |
| CN111120266B (en) * | 2018-10-31 | 2022-04-15 | 广东美芝制冷设备有限公司 | Exhaust structure of compressor and compressor with same |
| CN111365216A (en) * | 2020-03-31 | 2020-07-03 | 西安交通大学 | Air valve assembly for reciprocating air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Sanden Auto Air-conditioning Co., Ltd. Assignor: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai Contract record no.: 2010990000546 Denomination of utility model: Exhaust valve mechanism of compressor Granted publication date: 20091104 License type: Exclusive License Record date: 20100727 |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shanghai City 200025 Madang Road No. 347 Patentee after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: Shanghai City 200025 Madang Road No. 347 Patentee before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20171230 |