CN207830053U - A kind of compressor of variable displacement - Google Patents

Abstract

The utility model discloses a kind of compressors of variable displacement, including compressor arrangement and execution structure；Compressor arrangement includes cylinder, piston, swash plate, electromagnetic clutch, main shaft, position sensor and pressure sensor；The middle part of swash plate is hinged with main shaft；The end of swash plate and piston hinge；Piston activity is in cylinder；Executing agency includes inlet valve executing agency and exhaust valve executing agency；Inlet valve executing agency includes inlet channel, valve seat, valve, shifting axle, resetting spring, magnet and electromagnetic coil.The utility model controls inlet channel and the opening/closing time of exhaust passage and the length of opening time, the variation of compressor displacement can be accurately realized, to meet the requirement of comfort and economy by the conduction time of control electromagnetic coil；By controlling the quantity of the open and close control working cylinder of exhaust passage, achieve the effect that control compressor displacement, simple in structure, compressor displacement variation is apparent.

Description

A kind of compressor of variable displacement

Technical field

The utility model belongs to Compressor Technology field, and in particular to a kind of compressor of variable displacement.

Background technology

With the improvement of living standards, requirement of the passenger to comfort is higher and higher, air conditioning for automobiles is wherein important One side, air conditioning for automobiles can regulate and control interior temperature, humidity, flow velocity and cleannes, and compressor is in car room The important feature part of temperature regulation and control.To meet requirement of the passenger to comfort and fuel economy etc., variable compressor Application in air conditioning for automobiles is also more and more extensive.

Variable compressor can automatically adjust compressor displacement according to the relevant factor such as engine speed, vehicle interior temperature, Dynamic regulation is carried out to refrigeration system, the refrigerating capacity of automotive air-conditioning system is made to realize perfect matching with interior thermic load, thus into One step improves the comfort of automobile and reduces the fuel consumption of automobile.

Existing variable compressor is varied, has different advantage and disadvantage.Such as crank-linkage type, inclined disc type, rolling The discharge capacity adjusting of piston-type variable capacity compressors all has grade, mutability, is unfavorable for the stabilization of interior air conditioner surroundings, to starting The steady working condition of machine also adversely affects, and energy-saving effect is also less apparent；Swing-plate type, screw, vortex variable compressor, Its discharge capacity adjusting be stepless variation, and can be according to engine rotating speed, vehicle interior temperature, automatically regulate the refrigeration of compressor Amount has certain energy-saving effect, and but its structure is complex, and cost is higher.

Utility model content

In order to solve the above technical problems, the utility model adopts the following technical solution：

The utility model provides a kind of compressor of variable displacement, including compressor arrangement and execution structure；

The compressor arrangement includes cylinder, piston, swash plate, electromagnetic clutch, the main shaft being connect with electromagnetic clutch, cloth The pressure sensor set the position sensor in main shaft far from electromagnetic clutch one end and be arranged on cylinder inner wall；It is described oblique The middle part of disk is hinged with main shaft；The end of swash plate and piston hinge；The piston activity is in cylinder；

The executing agency includes inlet valve executing agency and exhaust valve executing agency；The inlet valve executing agency includes The inlet channel that is connected to cylinder, mounted on cylinder on inlet channel connectivity part inner wall valve seat, valve compatible with valve seat, The shifting axle that is connect with valve, the resetting spring being socketed on shifting axle, be arranged the one end of shifting axle far from valve magnet and The electromagnetic coil being sleeved on outside magnet；

It is exhaust passage to be connected to cylinder in the exhaust valve executing agency, and other structures and inlet valve execution structure are complete It is exactly the same.

Preferably, the junction of the valve and valve seat is equipped with seal washer.

The utility model has the beneficial effects that：A kind of compressor of variable displacement provided by the utility model, passes through control The conduction time of electromagnetic coil controls inlet channel and the opening/closing time of exhaust passage and the length of opening time, can be accurate The variation for realizing compressor displacement, to meet the requirement of comfort and economy；By the open and close control work for controlling exhaust passage The quantity for making cylinder achievees the effect that control compressor displacement, and simple in structure, compressor displacement variation is apparent.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other drawings may also be obtained based on these drawings.

Fig. 1 is compressor arrangement schematic diagram in the utility model；

Fig. 2 is executing agency's schematic diagram in the utility model；

Fig. 3 is the workflow schematic diagram of the utility model.

Reference sign：

1- cylinders, 2- pistons, 3- swash plates, 4- electromagnetic clutch, 5- main shafts, 6- inlet valves executing agency, 7- exhaust valves are held Row mechanism, 8- position sensors, 9- valves, 10- valve seats, 11- shifting axles, 12- inlet channels, 13- resetting springs, 14- electromagnetic wires Circle, 18- magnet, 19- exhaust passages, 20- pressure sensors.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

As shown in Figure 1 to Figure 3, a kind of compressor of variable displacement, including compressor arrangement and execution structure；

The compressor arrangement includes cylinder 1, piston 2, swash plate 3, electromagnetic clutch 4, the master being connect with electromagnetic clutch 4 Axis 5 is arranged in position sensor 8 of the main shaft 5 far from 4 one end of electromagnetic clutch and the pressure being arranged on 1 inner wall of cylinder passes Sensor 20；The middle part of the swash plate 3 is hinged with main shaft 5；The end of swash plate 3 is hinged with piston 2；2 activity of the piston is in cylinder 1 It is interior；

The executing agency includes inlet valve executing agency 6 and exhaust valve executing agency 7；The inlet valve executing agency 6 Include the inlet channel 12 being connected to cylinder 1, valve seat 10 and valve on cylinder 1 and 12 connectivity part inner wall of inlet channel 10 compatible valves 9 of seat, the resetting spring 13 being socketed on shifting axle 11, are arranged in shifting axle the shifting axle 11 being connect with valve 9 The magnet 18 of 11 one end far from valve 9 and the electromagnetic coil 14 being sleeved on outside magnet 18；

It is exhaust passage 19 to be connected to cylinder 1 in the exhaust valve executing agency 7, and other structures execute knot with inlet valve Structure is identical.

Preferably, the valve 9 and the junction of valve seat 10 are equipped with seal washer.

The electromagnetic coil 14 is electrically connected with control unit；Described control unit is for receiving, handling, calculating sensor Collected parameter, and send out control instruction to electromagnetic coil 14；Wherein, sensor can be for measuring engine speed Velocity sensor, the temperature sensor for measuring vehicle interior temperature, the pressure sensor 20 for measuring pressure in cylinder 1 and For measuring the position sensor 8 of 5 position of main shaft；

Operation principle：Engine drives compressor rotation by electromagnetic clutch 4, and then drives 3 turns of swash plate on main shaft 5 It moves, under the drive of swash plate 3, piston 2 moves back and forth in cylinder 1, is absorbed to form cylinder 1, compression, discharges refrigerant Process：

Absorption process：By the collected engine speed of velocity sensor, the collected vehicle interior temperature of temperature sensor, pressure It is single to pass to control for the parameters such as pressure, 8 collected main shaft of position sensor, 5 position in 20 collected cylinder 1 of force snesor Member, control unit carry out operation according to these parameters, when obtaining the opening time of control inlet valve executing agency 6 and persistently opening Between；Operation result is passed to the electromagnetic coil 14 in inlet valve executing agency 6, electromagnetic coil by control unit by pulse signal After 14 are powered, effect to the left is generated to magnet 18, magnet 18 drives shifting axle 11 to move downward, to make valve 9 and valve seat 10 Inlet channel 12 is opened in separation, and according to the lasting opening time, persistently open inlet channel 12, and then piston 2 is in cylinder 1 During the interior movement to seat, cylinder 1 sucks the gaseous refrigerant of low-temp low-pressure, after the opening time, disconnects electromagnetic wire Circle 14, magnet 18 moves right under the action of resetting spring 13, to make valve 9 close on valve seat 10, that is, it is logical to close air inlet Road 12；

Compression process：During piston 2 starts to move right in cylinder 1, inlet channel 12, exhaust passage 19 all close It closes, piston 2 does work to the gaseous refrigerant in cylinder 1, to make the gaseous refrigerant of low-temp low-pressure be changed into high temperature and pressure Gaseous refrigerant；

Exhaust process：In the late stage that piston 2 moves right in cylinder 1, the electromagnetism in exhaust valve executing agency 7 After coil 14 is powered according to pulse signal, an effect to the left is generated to magnet 18, to which valve 9 is detached with valve seat 10, that is, is beaten Exhaust passage 19 is opened, makes the gaseous refrigerant of high temperature and pressure that cylinder 1 be discharged, flows to condenser；After the opening time, break Electromagnetic coil 14 is opened, magnet 18 is moved right under the action of resetting spring 13, to make valve 9 close on valve seat 10, that is, closed Close exhaust passage 19.

During changing compressor displacement, compressor can also be changed by changing the quantity of working cylinder 1 Discharge capacity, working method：According to the collected signal of sensor institute, control unit is passed through after operation, can be executed to exhaust valve Mechanism 7 sends out pulse signal, so that exhaust passage 19 is persistently opened, i.e., is not compressed to the refrigerant in cylinder 1, this cylinder 1 It does not work, the quantity of working cylinder 1 can be reduced.

Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.

Claims (2)

1. a kind of compressor of variable displacement, which is characterized in that including compressor arrangement and execute structure；

The compressor arrangement includes that cylinder (1), piston (2), swash plate (3), electromagnetic clutch (4) and electromagnetic clutch (4) connect The main shaft (5) that connects is arranged in position sensor (8) of the main shaft (5) far from electromagnetic clutch (4) one end and is arranged in cylinder (1) pressure sensor on inner wall (20)；The middle part of the swash plate (3) is hinged with main shaft (5)；The end of swash plate (3) and piston (2) hinged；Piston (2) activity is in cylinder (1)；

The executing agency includes inlet valve executing agency (6) and exhaust valve executing agency (7)；The inlet valve executing agency (6) include the inlet channel (12) being connected to cylinder (1), be mounted on cylinder (1) and inlet channel (12) connectivity part inner wall Valve seat (10), the shifting axle (11) being connect with valve (9), is socketed on shifting axle (11) valve (9) compatible with valve seat (10) Resetting spring (13), setting the one end of shifting axle (11) far from valve (9) magnet (18) and to be sleeved on magnet (18) external Electromagnetic coil (14)；

It is exhaust passage (19) to be connected to cylinder (1) in the exhaust valve executing agency (7), and other structures are executed with inlet valve Structure is identical.

2. a kind of compressor of variable displacement as described in claim 1, which is characterized in that the valve (9) and valve seat (10) Junction is equipped with seal washer.