WO2017116194A1 - Soupape de commande électronique de compresseur à capacité variable - Google Patents

Soupape de commande électronique de compresseur à capacité variable Download PDF

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Publication number
WO2017116194A1
WO2017116194A1 PCT/KR2016/015537 KR2016015537W WO2017116194A1 WO 2017116194 A1 WO2017116194 A1 WO 2017116194A1 KR 2016015537 W KR2016015537 W KR 2016015537W WO 2017116194 A1 WO2017116194 A1 WO 2017116194A1
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WO
WIPO (PCT)
Prior art keywords
pressure port
valve
electronic control
control valve
guide
Prior art date
Application number
PCT/KR2016/015537
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English (en)
Korean (ko)
Inventor
황만익
Original Assignee
주식회사 뉴로스
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Filing date
Publication date
Application filed by 주식회사 뉴로스 filed Critical 주식회사 뉴로스
Publication of WO2017116194A1 publication Critical patent/WO2017116194A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/20—Control of pumps with rotary cylinder block
    • F04B27/22—Control of pumps with rotary cylinder block by varying the relative positions of a swash plate and a cylinder block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures

Definitions

  • the present invention relates to an electronic control valve of a variable displacement compressor, and more particularly, a valve body in which a crankcase pressure port, a discharge pressure port, and a suction pressure port are formed, and connected from the discharge pressure port to the crankcase pressure port therein. And a solenoid for closing the other side of the valve part, the valve part including a hollow guide for opening only one of the first passage and the second passage connected from the crankcase pressure port to the suction pressure port.
  • the bellows tension adjustment for elastically supporting the guide to the solenoid side by rotation of the tension control unit closing one end of the valve unit is made possible, thereby improving the pressure linearity and control accuracy of the variable displacement compressor. It relates to an electronic control valve.
  • a vehicle air conditioner includes a variable capacity compressor driven by an engine to compress a refrigerant and varying the discharge amount according to a cooling demand, a condenser condensing the refrigerant discharged from the compressor, and insulating the liquefied refrigerant through the condenser. It expands to make a mixture of gas and liquid, and uses the electronic expansion valve whose opening degree changes according to the refrigerant discharge amount of the compressor and the latent heat of evaporation when the refrigerant is evaporated to cool the surrounding air and return the refrigerant to the compressor.
  • control unit of the compressor When operating the air conditioning device configured as described above, the control unit of the compressor according to the air conditioning conditions, such as the indoor air temperature and outdoor temperature transmitted from the various sensors, and the air conditioning conditions such as the vehicle indoor set temperature set by the user, function selection such as heating or cooling The refrigerant discharge amount is changed.
  • variable displacement swash plate compressor generally uses a pressure regulating valve for adjusting the inclination angle of the swash plate to control the amount of refrigerant discharge.
  • 'ECV' an electronic control valve driven by electric control is controlled.
  • the inclination of the swash plate is changed by the ECV duty or the current applied to the ECV, and the refrigerant discharge amount of the compressor is determined by the inclination of the swash plate.
  • FIG. 1 An example of the electronic control valve of the conventional variable displacement compressor shown in FIG. 1 was developed by T company in Japan, and a relief valve 40 is provided therein to provide a crankcase pressure port 21 and a discharge pressure port 22. And a valve body 20 having a suction pressure port 23 formed therein, and a solenoid 30.
  • the suction pressure port 23 communicates with the crankcase pressure port 21, and the solenoid 30 In the OFF operation of FIG. 1, the crankcase pressure port 21 communicates with the discharge pressure port 22.
  • One example of such an electronic control valve of a conventional variable displacement compressor has the advantage of low cost.
  • the suction pressure port 53 is communicated from the crankcase pressure port 51 when the solenoid 60 is turned on, as shown in FIG. 2), the crankcase pressure port 51 communicates with the discharge pressure port 52 as shown in FIG.
  • the electronic control valve of the conventional variable displacement compressor is capable of controlling the amount of refrigerant discharged by adjusting the inclination angle of the swash plate through the crankcase pressure through the above-described operation.
  • an example of an electronic control valve of a conventional variable displacement compressor developed by T in Japan has a disadvantage in that a large-capacity solenoid is required, linearity against pressure change, and hysteresis is large.
  • the bellows tension is determined when the E control valve is press-fitted and assembled to a certain dimension, and when the pressure characteristic is out of the specification range of the hysteresis curve, there is a limit to adjust it to be located within the range by adjusting externally.
  • the electronic control valve of the company E has a structure in which the upper cap and the lower cap are separated by the spring in the bellows, and there is no separate guide member when moving in the vertical direction. There was a disadvantage that the relief reaction slowed down as the pressure leaked into the gap generated.
  • the object of the present invention is the crankcase pressure port, the discharge pressure port and the suction pressure port is formed in the valve body, and the crankcase pressure in the discharge pressure port therein
  • a valve portion including a hollow guide opening only one of a first passage connected to the port and a second passage connected from the crankcase pressure port to the suction pressure port, and a solenoid closing the other side of the valve portion;
  • the electronic control valve is formed so as to be able to adjust the bellows tension to elastically support the guide to the solenoid side by the rotation of the tension control unit for closing one end of the valve portion, variable pressure linearity and control accuracy is improved It is to provide an electronic control valve of a capacity compressor.
  • valve rod disposed inside the bellows is inserted into the through hole formed in the support portion fixed in contact with the inner circumferential surface of the valve body, so that during the relief reaction, the valve rod is horizontally coaxial with the guide without shaking in the vertical direction. It is mobile and provides an electronic control valve for a variable displacement compressor that allows the crankcase pressure to be discharged to the suction pressure port stably and quickly.
  • the electronic control valve 1 (ECV) of the variable displacement compressor of the present invention is made of a hollow body, and the crankcase pressure port (Cc) so that the crankcase pressure Pc, the discharge pressure Pd, and the suction pressure Ps act respectively.
  • a solenoid 200 which closes the other side of the valve body 100 and transfers the plunger 220 and the push rod 230 in a longitudinal direction by a magnetic field formed by a current applied to the coil 210;
  • a first passage 310 fixed to one end of the push rod 230 to communicate with the crankcase pressure port 110 and the inside thereof, and connected to the crankcase pressure port 110 from the discharge pressure port 120;
  • a hollow guide 300 which opens only one of the second passages 320 connected from the crankcase pressure port 110 to the suction pressure port 130;
  • the electronic control valve 1 is an adjustment nut 720 coupled to one end of the valve rod 400 located in the space between the support part 500 and the tension control part 710, both ends in the longitudinal direction.
  • the tension adjusting unit 710 and the adjustment nut 720 may be formed to include a first spring 730 is an elastic body coupled to.
  • the electronic control valve 1 may primarily adjust the tension of the bellows 600 by rotating the adjustment nut 720 before assembling the tension control unit 710.
  • the electronic control valve 1 may finely adjust the tension of the bellows 600 by rotating the tension control unit after assembling the tension control unit 710.
  • the electronic control valve 1 is coupled to the relief control unit 410 and the guide 300 in a metal contact state, when the relief function, the relief control unit 410 and the guide 300 is instantaneous Separated to the crankcase pressure (Pc) is introduced into the space therebetween can be delivered to the suction pressure port 130.
  • the relief valve 1 and the bellows 600 may move in conjunction with the electronic control valve 1 when the relief function is performed.
  • the electronic control valve 1 is controlled to move the guide 300 according to the electrical signal applied to the solenoid 200, the guide 300 is moved to the solenoid 200 side to the first
  • the discharge pressure Pd is transmitted to the crankcase pressure port 110, and the guide 300 moves to the tension control unit 710 to the second passage 320.
  • the crankcase pressure Pc may be transmitted to the suction pressure port 130.
  • the electronic control valve 1 may be further provided with a second spring 620 that is an elastic body on the inner circumference of the bellows 600.
  • the electronic control valve of the variable displacement compressor according to the present invention is formed to enable adjustment of the bellows tension such that the guide is elastically supported toward the solenoid side by rotation of the tension adjusting unit closing one end of the valve unit, thereby reducing pressure linearity and control. Precision can be improved.
  • the present invention primarily adjusts the tension of the bellows through the adjustment nut coupled to the end of the valve rod before assembly, and after the assembly by adjusting the tension of the bellows secondly to finely adjust the tension of the bellows, Even if errors occur, they can be compensated and the bellows tension accuracy can be improved.
  • the present invention can be adjusted so that even after assembly, the pressure characteristics of the electronic control valve can be located within the specification range of the hysteresis curve.
  • the electronic control valve of the variable displacement compressor according to the present invention is inserted into the through-hole formed in the support portion fixed to the valve rod disposed inside the bellows in contact with the inner circumferential surface of the bellows, the vibration in the vertical direction during the relief reaction It is possible to move horizontally on the guide and the coaxial without, through which there is an advantage that the crankcase pressure can be discharged to the suction pressure port stably and quickly.
  • FIG. 1 is a cross-sectional view showing an electronic control valve of a conventional variable displacement compressor.
  • Figure 2 is a cross-sectional view showing another electronic control valve of a conventional variable displacement compressor.
  • FIG 3 is a cross-sectional view showing an electronic control valve of a variable displacement compressor according to the present invention.
  • Figure 4 is a cross-sectional view showing a state in which the solenoid in the electronic control valve of the variable displacement compressor according to the present invention.
  • FIG. 5 is a cross-sectional view showing a state in which the solenoid is off in the electronic control valve of the variable displacement compressor according to the present invention.
  • FIG. 6 is a cross-sectional view showing a state in which a relief reaction occurs in the electronic control valve of the variable displacement compressor according to the present invention.
  • FIG 7 and 8 are cross-sectional view showing an electronic control valve of another variable displacement compressor according to the present invention.
  • the present invention generally relates to an electronic control valve (1) provided in a variable displacement compressor constituting an air conditioner for an automobile and varying the discharge capacity of the refrigerant by controlling the inclination angle of the swash plate by controlling the pressure of the crankcase.
  • the valve body 100, the solenoid 200, the guide 300, the valve rod 400, and the bellows 600 are included.
  • other components except for the solenoid 200 will be collectively referred to as a valve unit.
  • the valve body 100 is made of a hollow body, the crank chamber pressure (Pc), the discharge pressure (Pd), and the suction pressure (Ps) to act respectively
  • the pressure port 110, the discharge pressure port 120 and the suction pressure port 130 is formed, one side in the longitudinal direction is formed is sealed by the tension control unit 710.
  • the valve body 100 is circumferentially formed with three types of holes formed by the crankcase pressure port 110, the discharge pressure port 120, and the suction pressure port 130 in order from the left side.
  • a plurality of phases may be formed at regular intervals, respectively.
  • a decompression chamber in which the bellows 600 to be described later is located is formed inside the region where the crankcase pressure port 110 is formed in the valve body 100.
  • a solenoid 200 is provided at the other side in the longitudinal direction of the valve body 100, and the tension control unit 710 and the solenoid 200 are sealed at both sides in the longitudinal direction of the valve body 100.
  • the solenoid 200 is connected to the push rod 230 and move integrally, the plunger 220 made of a magnetic material, and the fixing core 240 is another magnetic material fixed to one side of the plunger 220, A coil 210 provided around the plunger 220 and the fixed core 240 to form a magnetic field according to an amount of current controlled from a separate controller (not shown), and a plate 250 accommodating the coil 210. And a housing 260.
  • the guide 300 is fixed to one end of the push rod 230 to move horizontally left and right according to the on / off of the solenoid 200, the movement direction is the same in conjunction with the movement of the push rod 230. .
  • the guide 300 is in the form of a hollow pipe, a communication path 330 for communicating the inside and the outside on one side in the longitudinal direction is formed so that the inside of the crankcase pressure port 110 and the guide 300 Allow communication.
  • the guide 300 is the other side in the longitudinal direction is coupled to the end of the push rod 230, even when coupled with the push rod 230 is formed to enable the longitudinal flow of the refrigerant therebetween, this To this end, a separate flow path forming unit may be further mounted between the inner circumferential surface of the guide 300 and the outer circumferential surface of the push rod 230.
  • the guide 300 may be formed in a separate structure of the area in which the communication path 330 is formed, and the communication path 330 inside the first guide 301 coupled to the push rod 230. A portion of the portion of the second guide 302 where the) is formed may be inserted and coupled.
  • the guide 300 is in close contact with the inner circumferential surface of the valve body 100 is slidingly moved in the longitudinal direction, through which the first connection from the discharge pressure port 120 to the crank chamber pressure port 110 Only one of the passage 310 and the second passage 320 connected to the suction pressure port 130 from the crankcase pressure port 110 is opened.
  • valve rod 400 extends in the longitudinal direction and is formed in a columnar shape, and the valve rod 400 is formed in the through hole 510 of the support part 500 fixed to the inner circumferential surface of the valve body 100.
  • One side is inserted in the longitudinal direction of
  • the other side of the valve rod 400 is formed with a relief adjustment unit 410 is coupled in contact with the outer peripheral surface of one side in the longitudinal direction of the guide 300, that is, the outer edge of the end portion of the second guide 302.
  • the relief adjustment unit 410 has a predetermined space therein, and the outer edge of the end portion of the second guide 302 is in contact with the inner circumferential surface, and moves to the left in the drawing as if sliding in the relief reaction. And a crankcase pressure Pc enters through the inner flow path of the guide 300 to exit the suction pressure port 130.
  • the bellows 600 is provided in the decompression chamber formed inside the crankcase pressure port 110, and is hollowly formed to be corrugated with a thin thin metal material.
  • One end in the longitudinal direction of the bellows 600 is coupled to the support 500, the other end is coupled to the relief adjustment portion 410 of the valve rod 400, accordingly the bellows 600 and the relief adjustment
  • the unit 410 may be interlocked with each other.
  • the bellows 600 is the other end is coupled to the relief control unit 410, the relief control unit 410 is coupled to one end of the guide 300, the guide 300 to the solenoid ( 200) is elastically supported to the side.
  • a second spring 620 may be additionally provided at an inner circumference of the bellows 600, whereby the second spring 620 together with the bellows 600 moves the guide 300 to the solenoid.
  • the elastically supporting force to the 200 side may be complemented.
  • the electronic control valve 1 of the variable displacement compressor is the control nut 720 is coupled to one end of the valve rod 400 located in the space between the support 500 and the tension control 710. And, both ends in the longitudinal direction may be formed by further comprising a first spring 730, which is an elastic body coupled in contact with the tension control unit 710 and the adjustment nut 720.
  • the electronic control valve 1 may first adjust the tension of the bellows 600 by rotating the adjustment nut 720 before assembling the tension control unit 710. That is, the solenoid 200 is reduced by the bellows 600 when the valve rod 400 is finely moved to the left in the drawing because the control nut 720 is further tightened. ), The load repelling force for the () increases, the load of the solenoid 200 increases.
  • the bellows 600 is further extended when the valve rod 400 is slightly moved to the right in the drawing because the control nut 720 is further loosened so that the solenoid 200 is increased.
  • the load repulsion force against the is reduced, the load of the solenoid 200 is reduced.
  • the electronic control valve 1 may finely adjust the tension of the bellows 600 by rotating the tension control part even after assembling the tension control part 710.
  • the tension control unit 710 the movement is different depending on whether the right or left screw, but when tightened, the force is further applied to the first spring 730, when released, the first spring 730 Explaining an example of less force applied to
  • the electronic control valve 1 is further tightened by the tension control unit 710 when the valve rod 400 is slightly moved to the right in the drawing, the bellows 600 is elongated by a certain length, through which the solenoid 200 ), The load repelling force for the () increases, the load of the solenoid 200 increases.
  • the bellows 600 is further reduced when the valve rod 400 is slightly moved to the left side of the drawing because the tension control unit 710 is further loosened, so that the solenoid 200 is reduced.
  • the load repulsion force against the is reduced, the load of the solenoid 200 is reduced.
  • the present invention can compensate for this even if an error occurs in the dimensions of the bellows 600, it is possible to improve the tension precision of the bellows 600. That is, the present invention can be adjusted so that the pressure characteristic of the solenoid valve 1 can be located within the specification range of the hysteresis curve even after assembly.
  • the electronic control valve 1 includes a valve body support 501 to which the support 500 is fixed to contact an inner circumferential surface of the valve body 100, and the valve body. Inserted into the space between the support 501 and the valve rod 400, a thread is formed on the outer circumferential surface may be formed to include an auxiliary tension adjusting unit 502 is screwed to the valve body support 501.
  • the electronic control valve (1) is to adjust the tension of the bellows 600 primarily by rotating the auxiliary tension control unit 502, before assembling the tension control unit 710, the adjustment nut ( 720 may only be used in a configuration that supports the first spring.
  • the valve rod 400 of the electronic control valve 1 extends in the longitudinal direction and has one side formed in a column shape, and an edge thereof is an inner circumferential surface of the valve body 100.
  • the inner space of the relief adjustment unit 410 is inserted into the rod insertion hole 711 of the tension control unit 710 inserted into and coupled to the through hole 510 of the support unit 500 fixed in contact with each other.
  • the outer circumferential surface of the one side in the longitudinal direction of the guide 300 may be formed in contact with the inner circumferential surface of the guide.
  • the tension control of the bellows 600 can be adjusted by rotating the tension control unit 710 after the assembly of the electronic control valve 1 is completed.
  • FIG. 4 and FIG. 5 show a state in which the solenoid 200 is turned on, and FIG. 5 shows that the solenoid 200 is turned on when the cooling load is general, that is, when the air conditioner is normally operated without being overloaded. It is off.
  • the plunger 220 and the push rod 230 are moved to the right in the drawing, and the guide 300 connected to the end of the push rod 230 is right.
  • the bellows 600 and the second spring 620 is elastically extended while moving together.
  • the discharge pressure port 120 is opened while the inner circumferential surface of the valve body 100 and the outer circumferential surface of the guide 300 in the region where the discharge pressure port 120 is formed, and the right side of the guide 300 is opened.
  • the suction pressure port 130 is closed as an end thereof comes into contact with the fixing core 240 of the solenoid 200.
  • crankcase pressure port 110 connected to the crank chamber of the variable displacement compressor and the discharge pressure port 120 communicate with each other through the decompression chamber, whereby a portion of the refrigerant is discharged from the discharge pressure port 120 having a high pressure. Moves to the crankcase pressure port 110 so that the pressure inside the crankcase is controlled.
  • the discharge pressure port 120 is closed while the inner peripheral surface of the valve body 100 and the outer peripheral surface of the guide 300 in a region where the discharge pressure port 120 is formed, and the right end of the guide 300 is closed.
  • the suction pressure port 130 is opened while being spaced apart from the fixed core 240 of the solenoid 200.
  • crankcase pressure Pc port connected to the crankcase of the variable displacement compressor and the suction pressure port 130 communicate with each other through the decompression chamber and the guide 300, thereby providing the crankcase pressure port 110.
  • the refrigerant from) is sent to the suction pressure port 130.
  • the electronic control valve 1 controls the crankcase pressure Pc of the variable displacement compressor to adjust the amount of refrigerant discharged by adjusting the inclination angle of the swash plate.
  • FIG. 6 is a relief function of quickly discharging the liquid refrigerant filled in the crankcase to the suction pressure port 130 in order to quickly start the air conditioner operation, ie, cooling, which starts or stops the vehicle.
  • the plunger 220 is moved to the left side in the drawing while a constant current controlled by the controller is supplied to the coil 210 of the solenoid 200.
  • the right end of the guide 300 is the solenoid 200.
  • the suction pressure port 130 is opened while being spaced apart from the fixed core 240 of the, and the suction pressure Ps is continuously applied to the relief control unit 410, and the suction pressure Ps becomes more than a metal.
  • a slight gap is generated between the relief adjustment part 410 and the guide 300 part which are in contact, and the crankcase pressure Pc in the decompression chamber is instantaneously entered through the gap to enter the inside of the guide 300. It exits to the suction pressure port 130 via a flow path.
  • the electronically controlled valve 1 of the variable displacement compressor has a valve rod 400 disposed inside the bellows 600 formed on the support part 500 fixed in contact with the inner circumferential surface of the valve body 100.
  • a valve rod 400 disposed inside the bellows 600 formed on the support part 500 fixed in contact with the inner circumferential surface of the valve body 100.
  • the electronic control valve (1) of the variable displacement compressor according to the present invention by the rotation of the tension control unit 710 closing one end of the valve portion, the bellows to elastically support the guide 300 to the solenoid (200) ( 600) By being formed to allow the tension adjustment, the pressure linearity and the precision of the control can be improved.
  • the present invention primarily adjusts the tension of the bellows 600 through the adjusting nut 720 coupled to the end of the valve rod 400 before assembly, and rotates the tension adjusting unit 710 after assembly.
  • the tension adjusting unit 710 By finely adjusting the tension of the bellows 600, even if an error occurs in the dimensions of the bellows 600, it can be compensated for, and the tension precision of the bellows 600 can be improved.
  • the present invention can be adjusted so that even after assembly, the pressure characteristics of the electronic control valve 1 can be located within the specification range of the hysteresis curve.
  • first guide 302 second guide
  • first passage 320 second passage
  • valve rod 410 relief adjustment unit
  • tension control unit 720 adjustment nut

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

La présente invention concerne une soupape de commande électronique d'un compresseur à capacité variable et, plus spécifiquement, une soupape de commande électronique d'un compresseur à capacité variable, la soupape comprenant : un corps de soupape comportant un orifice de pression de carter moteur, un orifice de pression de refoulement, et un orifice de pression d'aspiration ; une partie de soupape comprenant, en son sein, un guide creux pour l'ouverture uniquement de l'un quelconque parmi un premier passage relié à partir de l'orifice de pression de refoulement à l'orifice de pression de carter moteur et un second passage relié à partir de l'orifice de pression de carter moteur à l'orifice de pression d'aspiration ; et un solénoïde pour fermer l'autre côté de la partie de soupape, une tension de soufflet, permettant au guide d'être soutenu élastiquement en direction du solénoïde, étant formée de façon à être réglable par la rotation d'une partie de réglage de tension fermant une extrémité de la partie de soupape et ainsi, la linéarité de pression et la précision de commande sont améliorées.
PCT/KR2016/015537 2015-12-31 2016-12-30 Soupape de commande électronique de compresseur à capacité variable WO2017116194A1 (fr)

Applications Claiming Priority (2)

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KR10-2015-0190660 2015-12-31
KR1020150190660A KR101815634B1 (ko) 2015-12-31 2015-12-31 가변용량 압축기의 전자제어밸브

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WO2017116194A1 true WO2017116194A1 (fr) 2017-07-06

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KR102654757B1 (ko) 2019-02-07 2024-04-04 현대자동차주식회사 클러치 전류 제어 회로 및 이를 구비한 전자제어밸브
KR102260127B1 (ko) * 2020-05-21 2021-06-03 (주)솔텍 벨로우즈 타입의 고압 솔레노이드 밸브

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