CN101338740A - Bidirectional swash cam type fixed displacement automobile air conditioner compressor - Google Patents
Bidirectional swash cam type fixed displacement automobile air conditioner compressor Download PDFInfo
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- CN101338740A CN101338740A CNA2008100127647A CN200810012764A CN101338740A CN 101338740 A CN101338740 A CN 101338740A CN A2008100127647 A CNA2008100127647 A CN A2008100127647A CN 200810012764 A CN200810012764 A CN 200810012764A CN 101338740 A CN101338740 A CN 101338740A
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- rotor housing
- bank rotor
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Abstract
The present invention relates to a bidirectional swashplate type fixed-displacement automotive air-conditioning compressor. In the adopted technical scheme, the air-conditioning compressor comprises a clutch, a front cover, a front cylinder, a rear cylinder and a rear cover; wherein, a front valve plate is mounted between the front cover and the front cylinder; a rear valve plate is mounted between the rear cover and the rear cylinder; a main shaft is mounted in the front and the rear cylinders; via a front thrust bearing and a front needle bearing, the front end of the main shaft is connected with the clutch after passing through the front cover, and the other end of the main shaft is connected with the rear cylinder via a rear thrust bearing and a rear needle bearing; a swashplate is mounted on the main shaft; the outer edge of the swashplate is mounted in a notch in the middle of a double-headed piston; ball sockets are arranged in the notch in the middle of the double-headed piston; two semispheres are mounted in the ball sockets; the planes of the semispheres are contacted with the swashplate; the spherical surfaces of the semispheres are contacted with the two ball sockets of the double-headed piston; a layer of polyfluortetraethylene coating is attached on the outer diameter of the double-headed piston. The air-conditioning compressor has the advantages of compact designed structure, high working efficiency and reliability, and good sealing effect.
Description
Technical field:
The invention belongs to the air condition compressor on a kind of automobile, particularly a kind of bidirectional swash cam type fixed displacement air conditioner for automobile compressor.
Background technique:
Existing air conditioner for automobile compressor mostly is single direction work, and compressor operating efficient is low; Piston external diameter is wanted ring installation, makes the piston structure complexity, and the friction factor between piston and cylinder body increases, the poor reliability of compressor; And having only a valve plate in the compressor, the sealing effect of sealing surface of valve plate is poor.Along with requirement and the raising of people, the travelling comfort and the Economy of car air conditioner are also more and more paid close attention to automobile dynamic quality.The designing technique of automobile air conditioner compressor, structural characteristics become the key factor that people investigate automotive performance, quality.Therefore, characteristics such as compact structure, energy-efficient and little low noise that shakes are the targets that the vehicle compressor manufacturing technology is constantly pursued.
Summary of the invention:
In order to address the above problem, the purpose of the invention provides a kind of bidirectional swash cam type fixed displacement automobile air conditioner compressor with project organization compactness, the working efficiency that improves compressor and reliability, good sealing effect.To achieve these goals, the technological scheme that the invention is adopted is: a kind of bidirectional swash cam type fixed displacement automobile air conditioner compressor, comprise clutch, protecgulum, front-bank rotor housing, rear-bank rotor housing, bonnet, it is characterized in that: valve plate before installing between protecgulum and the front-bank rotor housing, the back valve plate is installed between bonnet and the rear-bank rotor housing, in front-bank rotor housing and the rear-bank rotor housing main shaft is housed, main shaft one end is through forward thrust bearing and preceding needle bearing, after passing protecgulum, connect clutch in its end, the main shaft the other end is connected with rear-bank rotor housing with back needle bearing through the back thrust-bearing; Swash plate is housed on the main shaft, the outer rim dress of swash plate is combined in the groove at double-head piston middle part, be provided with ball-and-socket in the groove at double-head piston middle part, two hemisphere are housed in the ball-and-socket, hemispherical plane contacts with swash plate, the hemisphere sphere contacts with two ball-and-sockets of double-head piston, and the double-head piston external diameter is with one deck polytetrafluorethylecoatings coatings.
Valve plate is the same with the structure of back valve plate before described, and its structure is: the inlet and outlet mouth is arranged on the valve plate, and inlet and outlet mouth periphery has a ring annular groove.
Magnetic clutch drive main spindle and swash plate rotate, and hemisphere and double-head piston are converted into straight reciprocating motion with rotatablely moving of swash plate.The main difference point of this structure is exactly not have anti-rotation mechanism, avoid it to rotatablely move but be supported on respectively in the two cylinder holes by the double-head piston two ends, when swash plate tilts rotation, promote the double-head piston to-and-fro motion by hemisphere, the spin of double-head piston itself is limited by the outer rim of swash plate.Its working principle: each cylinder is that center circumferential is arranged the spindle parallel of double-head piston moving direction and compressor with the compressor main shaft.Plunger designs is processed into double-head piston, and double-head piston is tandem slip in relative cylinder, and during compression refrigerant gas, the other end piston is just sucking refrigerant gas to an end piston in the cylinder of back in preceding cylinder.Each cylinder all has the high and low pressure air cavity channel, by high and low pressure passage and system connectivity.Swash plate and main shaft are fixed together, and the outer rim dress of swash plate is combined in the groove at double-head piston middle part, and the groove and the swash plate edge at double-head piston middle part support by hemisphere.When main axis rotation, swash plate is also along with rotation, and swash plate promotes hemisphere, double-head piston is made axially reciprocating.Swash plate rotates a week, and compression, exhaust, expansion, an air-breathing circulation are respectively finished in the two ends of double-head piston.Be equivalent to two cylinders.
The beneficial effect of the invention:
One, a machine two-way working improve compressor operating efficient.Swash plate is designed to 17.5 ° of inclination angles, by hemisphere and double-head piston rotatablely moving of swash plate is converted into reciprocating motion of the pistons, accomplishes a machine two-way working, solved the work of compressor single direction, increased work efficiency and refrigerating capacity, made compressor operating steady, simple in structure, reduce cost.
Two, piston structure is simple, reduces the friction factor between piston and cylinder body, improves the reliability of compressor.Double-head piston surface attachment one deck PTFE (teflon) coating improves compressor reliability.Because teflon has the chemical stability of height, good thermostability and excellent self lubricity are coated with one deck teflon on the surface of piston, can be made into the piston of no piston ring, make structure of piston simple, reduce the friction factor between piston and cylinder body.Simultaneously, utilize teflon to have good wear resistance and compactness, reduce the clearance volume of piston face, make piston have good air-tightness, improve compressor operating efficient and reliability.
Three, the inlet and outlet mouth periphery on preceding valve plate and the back valve plate designs the circular groove that has essence to dash, sealing surface and valve plate plane area are separated to come, and it is long-pending to reduce sealing contact surface, has reached the optimal seal effect, improve compressor reliability, guaranteed the sealability in preceding valve plate and the back valve plate use.
The invention project organization compactness, littlely shake, low noise, energy-efficient.
Description of drawings:
Fig. 1 is the invention general structure schematic representation;
Fig. 2 is an I portion amplification view among Fig. 1;
Fig. 3 is valve plate before the invention (or back valve plate) structural representation;
Fig. 4 is the A-A sectional drawing of Fig. 3.
Embodiment:
Also in conjunction with the accompanying drawings the invention is further described below by specific embodiment.
As shown in Figure 1, a kind of bidirectional swash cam type fixed displacement automobile air conditioner compressor comprises clutch 1, axle envelope device 2, front exhaust valve block 3, front exhaust sealing gasket 4, preceding valve plate 5, preceding suction valve chip 6, preceding suction seal pad 7, double-head piston 8, preceding needle bearing 9, swash plate 10, hemisphere 11, back thrust-bearing 12, lag bolt 13, bonnet 14, back valve plate 15, final vacuum sealing gasket 16, main shaft 17, back needle bearing 18, stay bolt 19, rear-bank rotor housing 20, cylinder body sealing gasket 21, forward thrust bearing 22, front-bank rotor housing 23, protecgulum 24, final vacuum valve block 28, back suction valve chip 29 and back suction seal pad 30.
Lag bolt 13 links together front-bank rotor housing 23 and rear-bank rotor housing 20, and stay bolt 19 links together bonnet 14, rear-bank rotor housing 20, front-bank rotor housing 23 and protecgulum 24, is provided with cylinder body sealing gasket 21 between front-bank rotor housing 23 and the rear-bank rotor housing 20;
Valve plate 5 before installing between protecgulum 24 and the front-bank rotor housing 23 is installed back valve plate 15 between bonnet 14 and the rear-bank rotor housing 20;
In front-bank rotor housing 23 and the rear-bank rotor housing 20 main shaft 17 is housed, main shaft 17 1 ends are through forward thrust bearing 22 and preceding needle bearing 9, pass protecgulum 24 after, connect clutch 1 in its end, main shaft 17 the other ends are connected with rear-bank rotor housing 20 with back needle bearing 18 through back thrust-bearing 12;
Swash plate 10 is housed on the main shaft 17, the one end dress of swash plate 10 is combined in the groove at double-head piston 8 middle parts, be provided with ball-and-socket in the groove at double-head piston 8 middle parts, two hemisphere 11 are housed in the ball-and-socket, hemisphere 11 planes contact with swash plate 10, hemisphere 11 spheres contact with two ball-and-sockets of double-head piston 8, and as shown in Figure 2, double-head piston 8 surfaces are with one deck polytetrafluorethylecoatings coatings 25.
As shown in Figure 3, Figure 4, the structure of preceding valve plate 5 or back valve plate 15 is the same.Inlet and outlet mouth 26 is arranged on the valve plate, and inlet and outlet mouth 26 peripheries have a ring annular groove 27.
Magnetic clutch drive main spindle and swash plate rotate, and hemisphere and double-head piston are converted into straight reciprocating motion with rotatablely moving of swash plate.Promote double-head piston compression refrigerant gas in cylinder body.
Claims (2)
1, a kind of bidirectional swash cam type fixed displacement automobile air conditioner compressor, comprise clutch (1), protecgulum (24), front-bank rotor housing (23), rear-bank rotor housing (20), bonnet (14), it is characterized in that: valve plate (5) before installing between protecgulum (24) and the front-bank rotor housing (23), back valve plate (15) is installed between bonnet (14) and the rear-bank rotor housing (20), in front-bank rotor housing (23) and the rear-bank rotor housing (20) main shaft (17) is housed, main shaft (17) one ends are through forward thrust bearing (22) and preceding needle bearing (9), after passing protecgulum (24), connect clutch (1) in its end, main shaft (17) the other end is connected with rear-bank rotor housing (20) with back needle bearing (18) through back thrust-bearing (12); Swash plate (10) is housed on the main shaft (17), the one end dress of swash plate (10) is combined in the groove at double-head piston (8) middle part, be provided with ball-and-socket in the groove at double-head piston (8) middle part, two hemisphere (11) are housed in the ball-and-socket, hemisphere (11) plane contacts with swash plate (10), hemisphere (11) sphere contacts with two ball-and-sockets of double-head piston (8), and double-head piston (8) external diameter is with one deck polytetrafluorethylecoatings coatings (25).
2, bidirectional swash cam type fixed displacement automobile air conditioner compressor according to claim 1, it is characterized in that: the structure of valve plate (5) and back valve plate (15) is before described: inlet and outlet mouth (26) is arranged on the valve plate, and inlet and outlet mouth (26) periphery has a ring annular groove (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100127647A CN101338740A (en) | 2008-08-12 | 2008-08-12 | Bidirectional swash cam type fixed displacement automobile air conditioner compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100127647A CN101338740A (en) | 2008-08-12 | 2008-08-12 | Bidirectional swash cam type fixed displacement automobile air conditioner compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101338740A true CN101338740A (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100127647A Pending CN101338740A (en) | 2008-08-12 | 2008-08-12 | Bidirectional swash cam type fixed displacement automobile air conditioner compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101338740A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425542A (en) * | 2010-08-19 | 2012-04-25 | 罗伯特·博世有限公司 | Piston pump, producing method thereof, guiding element thereof, and vehicle brake sysetm |
| CN112096592A (en) * | 2020-09-04 | 2020-12-18 | 衡阳市振洋汽车配件有限公司 | Compressor for vehicle |
-
2008
- 2008-08-12 CN CNA2008100127647A patent/CN101338740A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425542A (en) * | 2010-08-19 | 2012-04-25 | 罗伯特·博世有限公司 | Piston pump, producing method thereof, guiding element thereof, and vehicle brake sysetm |
| CN112096592A (en) * | 2020-09-04 | 2020-12-18 | 衡阳市振洋汽车配件有限公司 | Compressor for vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090107 |