CN101012819A - Variable displacement automobile air-conditioning compressor - Google Patents
Variable displacement automobile air-conditioning compressor Download PDFInfo
- Publication number
- CN101012819A CN101012819A CN 200610052266 CN200610052266A CN101012819A CN 101012819 A CN101012819 A CN 101012819A CN 200610052266 CN200610052266 CN 200610052266 CN 200610052266 A CN200610052266 A CN 200610052266A CN 101012819 A CN101012819 A CN 101012819A
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- swash plate
- main shaft
- shaking tray
- disc
- cylinder block
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Abstract
The inventive variable-output air-conditioner compressor of vehicle arranges a balance disc at present incline disc, arranges swing disc between incline disc and balance disc, and arranges two hooks at incline disc. Therefore, the balance disc in the rotary system can realize better dynamic balance property when the incline disc is at different degrees; the incline disc of dual-hook structure can be mounted on the compressor with different rotary directions, to improve strength and avoid accidence.
Description
Technical field
The present invention relates to a kind of variable displacement automobile air-conditioning compressor.
Background technique
Variable compressor, generally be installed on the passenger car that environmental degree of comfort is had relatively high expectations, during work by the electromagnetic clutch for compressor adhesive, the rotation of parts such as drive main spindle, driveshaft, swash plate, axle sleeve, be converted into the to-and-fro motion of piston again by shaking tray and guide mechanism, reach the purpose of air-breathing, compression, exhaust.Adjust displacement size by control valve, swash plate body.
But existing variable compressor, because the configuration of the weight of each function part of rotating mechanism is unbalanced, especially be under the situation of different inclination angle of variation the compressor high speed rotating at swash plate, cause vibration, noise easily, quicken the wear out failure of compressor movement parts.
Simultaneously, for the variable compressor that requires different rotation directions, need the different swash plate assembly of configuration, misuse also appears in not only management inconvenience, client's installation simultaneously easily.
Summary of the invention
For overcoming above-mentioned defective, the invention provides a kind of improved variable displacement automobile air-conditioning compressor.
For achieving the above object, variable displacement automobile air-conditioning compressor of the present invention comprises: a magnetic clutch assembly, a cylinder block, with described cylinder block removably connect with a protecgulum of closed cylinder body front end and back end and a bonnet, a main shaft, a driveshaft, be set in swash plate on the described main shaft, together axle sleeve is located at the shaking tray on the described swash plate and is articulated in a plurality of pistons on the shaking tray by a plurality of ball head connecting rods; Wherein, described protecgulum and cylinder block form a cavity, and cylinder block has a plurality of cylinders hole, and described each piston is arranged in the corresponding cylinder hole; Described main shaft axially pass cavity and be rotatably supported in cylinder block and protecgulum in; Described driveshaft is fixed on the described main shaft, by a bearing pin and the hangers pin joint that is convexly equipped with on swash plate; Described swash plate is installed on the described main shaft by a sliding sleeve, it is characterized in that, and a sheathed Balance disc on described swash plate, shaking tray is arranged between swash plate and the Balance disc; The described hangers that is convexly equipped with on swash plate is two, and described driveshaft is hubbed between two hangers by bearing pin.
Wherein, with the corresponding fixed-site of shaking tray axis hole the lining that one Bearing Steel is made is installed on described swash plate axle journal, a needle bearing is installed between the lining and shaking tray of Bearing Steel manufacturing.
Adopt said structure, in rotation system, increased Balance disc, guarantee that rotation system is at swash plate under the condition of different amount, all have favorable dynamic balance property, can improve compressor rotary speed, and reduce vibration and noise; The swash plate of two hangers structures can be assemblied in the compressor of different rotation directions, and has increased structural strength, avoids fault to take place.
Description of drawings
Fig. 1 is the vertical profile schematic representation of variable displacement automobile air-conditioning compressor of the present invention;
Fig. 2 looks schematic representation for the master of the swash plate in the variable displacement automobile air-conditioning compressor shown in Figure 1;
Fig. 3 is the vertical profile schematic representation of wobbler shown in Figure 2;
Fig. 4 is the vertical profile schematic representation of the control valve in the variable displacement automobile air-conditioning compressor shown in Figure 1.
Embodiment
Below in conjunction with the drawings and specific embodiments variable displacement automobile air-conditioning compressor of the present invention is further described.
Consult Fig. 1, variable displacement automobile air-conditioning compressor of the present invention comprises a magnetic clutch assembly 1, a protecgulum 2, a main shaft 3, a driveshaft 4, a cylinder body 5, a shaking tray 6, a plurality of connecting rod 7, a plurality of piston 8, a bonnet 9, a guide plate 14, a swash plate 15, a sliding sleeve 12, a Balance disc 13, a valve board assembly 10 and a control valve 11.
Magnetic clutch assembly 1 comprises a pulley assembly 20, an electromagnet assembly 30 and a Suction cup assembly 40.Pulley assembly 20 comprises a bearing 21 and a belt pulley 22.Belt pulley 22 is installed on the protecgulum 2 by bearing 21.Electromagnet assembly 30 is fixedly mounted on the protecgulum 2, is positioned at the annular groove on belt pulley 22 right sides.Suction cup assembly 40 comprises a wheel hub 41 with flange plate, one and the latch plate 43 that is fixedly linked of the flange plate of wheel hub 41 driver plate 42, a plurality of one end and the driver plate 42 that are fixedly linked and the friction disk 44 that is fixedly linked with the other end of a plurality of latch plates 43.Wheel hub 41 is fixedly connected on the left end of main shaft 3 by a flat key.
Suit one volute spring 27 on main shaft 3, partly match with the circular cone of main shaft 3, the big end of spring 27 is pressed on the sliding sleeve 12 when variable displacement automobile air-conditioning compressor turns round with the float amount, to 12 bufferings of sliding sleeve, position-limiting action, the small end of spring 27 always is pressed on the snap ring that is installed on the main shaft 3.
Consult Fig. 4, control valve 11 has a valve body 111.One bellows spool 113 is fixedly mounted in the valve body 111 with being threaded of female thread formation of valve body 111 left ends by the external screw thread of its left end.One plastic mattress 119 is installed on the left end portion of bellows spool 113.One valve seat 112 is fixedly mounted on the right-hand member of valve body 111.One push rod 115 is installed in shoulder hole, the center of valve seat 112 slidably.On the hole wall in the shoulder hole, center of the right end portion of valve seat 112, an annular groove is arranged, an O-ring seals 116 is wherein arranged.The right-hand member of one spring 114 is sleeved on the left end of push rod 115.The left end of spring 114 stretches in the groove of bellows spool 113 right-hand members and is pressed on the groove groove bottom.The left end of valve body 111 and plastic mattress 119 have through hole 120 and the through hole 121 that is communicated with the compressor cavity respectively.Valve seat 112 has the passage 123 that is communicated with the air aspiration cavity of compressor.The right-hand member of valve seat 121 has external screw thread 122.The left end portion of valve seat 112 has sealing surface 117.The right-hand member of bellows spool 113 has sealing surface 118.In the normal state, the sealing surface 117 of valve seat 112 contacts with sealing surface 118 sealings of bellows spool 113.
Consult Fig. 1, valve board assembly 10 is installed on the control valve 11, control valve 11 is installed in the hole of cylinder body 5 right-hand members by nut 45.The refrigeration agent of air aspiration cavity enters the chamber that valve seat 112 is equipped with spring 114 by passage 123, pressure of inspiration(Pi) acts on the right-hand member of bellows spool 113, exhaust pressure promotes push rod 115 and overcomes the elastic force same purpose of spring 114 on the right-hand member of bellows spool 113, therefore, pressure of inspiration(Pi) and exhaust pressure produce a force action to the right-hand member of bellows spool 113.When this makes a concerted effort to be higher than the setting value of control valve 11, the bellows of bellows spool 113 is compressed, the sealing surface 117 of valve seat 112 disengages with the sealing surface 118 of bellows spool 113, the compressor block cavity is communicated with air aspiration cavity by chamber and the passage 123 that through hole 120 and through hole 121 and valve seat 112 are equipped with spring 114, cause that pressure difference value changes, thereby change the angle of inclination of swash plate 15, and then the stroke of change piston 8, realize the variation of compressor displacement, reach best refrigeration.
Consult Fig. 1 to Fig. 3, the general axle sleeve of Cuprum alloy manufacturing that adopts is rotatably connected between swash plate and the shaking tray, as if adopting needle bearing to connect, because of swash plate design of part complexity, processing heat treatment causes that easily distortion then proposes very high requirement to the material of swash plate, hard processing, machining accuracy.The structure that the present invention adopts needle bearing 23 to connect, but interference fit puts the lining 25 that a Bearing Steel is made on the axle journal of swash plate 15, forms the swash plate assembly, has solved swash plate processing, a heat treatment difficult problem preferably.
During the prior art situation little at swash plate 15 inclination angles, the rotation system balance meets design requirement, the inclination angle increase (being that compressor displacement increases) then equilibrium conditions destroyed.Variable displacement automobile air-conditioning compressor of the present invention has increased Balance disc in its rotation system, overcome the problems referred to above of prior art effectively, guarantees to play the counterweight effect under swash plate 15 any inclination angle situations, satisfies the requirement for dynamic balance of moving system.
Consult Fig. 2 and Fig. 3, variable displacement automobile air-conditioning compressor of the present invention adopts two hangers 18, by the drive of driveshaft 4, can conveniently realize the rotation of positive and negative different direction.30 ° of gradients of swash plate 15 outer rims, the structure of two hangers 18 and lower boss part makes the whole part weight distribution reasonable, swash plate 15 fits together with other parts of system, when the compressor different displacements turns round, can both reach running steadily, reduce the purpose of noise.
The working procedure of variable displacement automobile air-conditioning compressor of the present invention is as follows:
Under the driving of motor car engine belt drive system (not shown), the belt pulley 22 that is installed in rotation on the protecgulum 2 by bearing 21 rotates, give the electromagnet assembly that is fixedly mounted on the protecgulum 2 30 energisings, produce electromagnetic attraction between the friction disk 44 of electromagnet assembly 30 and Suction cup assembly 40, friction disk 44 overcomes the elastic force of a plurality of latch plates 43, move right, adhesive is pressed on the rubbing surface of belt pulley 22 left ends, under the effect of frictional force, Suction cup assembly 40 and main shaft 3 rotate with belt pulley 22, swash plate 15 rotations, by shaking tray 6, connecting rod 7 is converted into piston 8 to-and-fro motion in cylinder-bore, air-breathing by valve board assembly 10, opening of exhaust valve plate, close, finished the suction of compressor refrigerant, compression and discharge.Guide plate 14 is fixed on by two rest pins in the pin-and-hole of protecgulum 2 and cylinder body 5, guiding and anti-rotation effect when it plays shaking tray 6 swings.Give the electromagnet assembly that is fixedly mounted on the protecgulum 2 30 outages, the electromagnetic attraction that produces between the friction disk 44 of electromagnet assembly 30 and Suction cup assembly 40 disappears, friction disk 44 is under the elastic force effect of a plurality of latch plates 43, be moved to the left, disengage with the rubbing surface of belt pulley 22 left ends, Suction cup assembly 40 and main shaft 3 no longer rotate with belt pulley 22, and compressor stops the compression to gas.
Claims (2)
1, a kind of variable displacement automobile air-conditioning compressor comprises: a magnetic clutch assembly, a cylinder block, with described cylinder block removably connect with a protecgulum of closed cylinder body front end and back end and a bonnet, a main shaft, a driveshaft, be set in swash plate on the described main shaft, together axle sleeve is located at the shaking tray on the described swash plate and is articulated in a plurality of pistons on the shaking tray by a plurality of ball head connecting rods; Wherein, described protecgulum and cylinder block form a cavity, and cylinder block has a plurality of cylinders hole, and described each piston is arranged in the corresponding cylinder hole; Described main shaft axially pass cavity and be rotatably supported in cylinder block and protecgulum in; Described driveshaft is fixed on the described main shaft, by a bearing pin and the hangers pin joint that is convexly equipped with on swash plate; Described swash plate is installed on the described main shaft by a sliding sleeve, it is characterized in that, and a sheathed Balance disc on described swash plate, shaking tray is arranged between swash plate and the Balance disc; The described hangers that is convexly equipped with on swash plate is two, and described driveshaft is hubbed between two hangers by bearing pin.
2, variable displacement automobile air-conditioning compressor as claimed in claim 1, it is characterized in that: with the corresponding fixed-site of shaking tray axis hole the lining that one Bearing Steel is made is installed on described wobbler axle journal, a needle bearing is installed between the lining and shaking tray of Bearing Steel manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610052266 CN101012819A (en) | 2006-07-03 | 2006-07-03 | Variable displacement automobile air-conditioning compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610052266 CN101012819A (en) | 2006-07-03 | 2006-07-03 | Variable displacement automobile air-conditioning compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101012819A true CN101012819A (en) | 2007-08-08 |
Family
ID=38700513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610052266 Pending CN101012819A (en) | 2006-07-03 | 2006-07-03 | Variable displacement automobile air-conditioning compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101012819A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089967A (en) * | 2014-05-21 | 2015-11-25 | 比泽尔制冷技术（中国）有限公司 | Two-way swaying tray compressor |
| CN105683561A (en) * | 2013-10-24 | 2016-06-15 | 罗伯特·博世有限公司 | Axial piston machine |
| US10253764B2 (en) | 2014-05-21 | 2019-04-09 | Bitzer Refrigeration Technology (China) Co., Ltd. | Two-way wobble plate compressor |
-
2006
- 2006-07-03 CN CN 200610052266 patent/CN101012819A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105683561A (en) * | 2013-10-24 | 2016-06-15 | 罗伯特·博世有限公司 | Axial piston machine |
| CN105683561B (en) * | 2013-10-24 | 2018-09-21 | 罗伯特·博世有限公司 | Axial piston machine |
| CN105089967A (en) * | 2014-05-21 | 2015-11-25 | 比泽尔制冷技术（中国）有限公司 | Two-way swaying tray compressor |
| WO2015176666A1 (en) * | 2014-05-21 | 2015-11-26 | 比泽尔制冷技术（中国）有限公司 | Bidirectional swashplate compressor |
| US10253764B2 (en) | 2014-05-21 | 2019-04-09 | Bitzer Refrigeration Technology (China) Co., Ltd. | Two-way wobble plate compressor |
| US10393098B2 (en) | 2014-05-21 | 2019-08-27 | Bitzer Refrigeration Technology (China) Co., Ltd. | Two-way wobble plate compressor |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |