CN103890391B - For the control valve of compressor - Google Patents
For the control valve of compressor Download PDFInfo
- Publication number
- CN103890391B CN103890391B CN201280051778.4A CN201280051778A CN103890391B CN 103890391 B CN103890391 B CN 103890391B CN 201280051778 A CN201280051778 A CN 201280051778A CN 103890391 B CN103890391 B CN 103890391B
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- valve
- chamber
- valve body
- flow path
- steam supply
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Classifications
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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
- F04B25/00—Multi-stage pumps
- F04B25/04—Multi-stage pumps having cylinders coaxial with, or parallel or inclined to, main shaft axis
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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
- 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
- F04B27/1804—Controlled by crankcase pressure
- F04B2027/1809—Controlled pressure
- F04B2027/1813—Crankcase pressure
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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
- 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
- F04B27/1804—Controlled by crankcase pressure
- F04B2027/1822—Valve-controlled fluid connection
- F04B2027/1827—Valve-controlled fluid connection between crankcase and discharge chamber
Abstract
The present invention relates to a kind of control valve for compressor, described control valve is combined with the swash plate that is disposed in crank chamber place, uses multiple reciprocating pistons to compress the cold-producing medium being inhaled in suction chamber, and the cold-producing medium of compression is disposed to drain chamber. Control valve for compressor comprises: valve body, has inner chamber; Operating unit can move back and forth in the inner chamber of valve body; Driver element, is arranged in the inner chamber of valve body, operating unit is moved back and forth according to the electric current applying from outside; For flow channel, be formed with discharge valve chamber described in flow channel, and between the inwall of valve body, make crank chamber be connected with drain chamber; The first discharge flow path makes crank chamber be connected with suction chamber between the inwall of valve body; The second discharge flow path, forms through discharge valve chamber vertically, and is connected to the first discharge flow path; Steam supply valve unit, is connected with operating unit so that operating unit can move back and forth, and optionally opens and closes for flow channel and the first discharge flow path; Drain valve unit, is arranged on inside, steam supply valve unit, and opens and closes the second discharge flow path according to the pressure of suction chamber. Therefore, the present invention can be by the impact of crank press be minimized executable operations stably.
Description
Technical field
The present invention relates to a kind of control valve, more specifically, relate to a kind of control valve for compressor, shouldControl valve is applied to the compressor of the cooling system of the conditioner of vehicle.
Background technology
Because the compressor being included in the cooling system of conditioner of vehicle directly connects by bandTo engine, so be difficult to control revolution. Therefore, in recent years, in order not limited by engine revolutionSituation under obtain cooling performance, used widely the variable row of discharge capacity that can change cold-producing mediumAmount formula compressor. For variable displacement compressor, develop such as inclined disc type, rotary and whirlpoolRotating all kinds, oblique tray type compressor regulates the gradient of swash plate to allow angle of inclination in crank chamberInterior variable, and the capacity of control variable displacement compressor. Meanwhile, variable displacement compressor adoptsControl valve, this control valve regulates the pressure of crank chamber and regulates the angle of inclination of swash plate to control discharge capacity.
For variable displacement compressor, that in 2010-0107178 Korean Patent is open, describes canThe displacement control valve of variable displacement type compressor comprises and is provided with crank chamber connecting hole, drain chamber connecting hole and suctionEnter the room connecting hole valve chest, be arranged on valve body in valve chest, bellows (bellows), solenoid andShroud member.
But, very likely can be subject to crank press according to the control valve for compressor of prior artImpact, the operation of control valve may become unstable due to the change of crank press.
Summary of the invention
Technical problem
The object of the present invention is to provide a kind of control valve for compressor, can be by making crank pressImpact minimize and this control valve stably operated.
Technical scheme
Embodiments of the invention provide a kind of control valve for compressor, and described control valve is used for like thisCompressor, this compressor by using multiple pistons to from suction chamber suck cold-producing medium compressAnd the cold-producing medium of compression is disposed to drain chamber, described multiple pistons are connected to and are arranged on crank chamber placeSwash plate is to move by reciprocating mode. Described control valve comprises: valve body, and in described valve bodyBe formed with inner chamber; Operating unit, is arranged in the inner chamber of valve body, to move by reciprocating mode;Driver element, is arranged in the inner chamber of valve body, to make operation sheet in response to the electric current applying from outsideUnit moves by reciprocating mode; Steam supply valve has discharge valve chamber in described steam supply valve, described rowPut valve chamber and be provided with for flow channel, the first discharge flow path and the second discharge flow path, described for flow channel formationBetween steam supply valve and the inwall of valve body, be connected communicatively described first with drain chamber with permission crank chamberDischarge flow path is formed between steam supply valve and the inwall of valve body to allow crank chamber and suction chamber to connect communicativelyConnect, described the second discharge flow path vertically through discharge valve chamber and form with the first discharge flow path communicativelyConnect, described discharge valve chamber is connected to operating unit with operating unit interlocking and by reciprocating modeMotion, and described discharge valve chamber optionally opens or closes for flow channel and the first discharge flow path; DischargeValve, is arranged on discharge valve chamber place, and opens or closes the second discharge flow path according to the pressure of suction chamber.
Here, valve body can comprise: one or more crank chamber mouth, is formed in outer surface and connectsEarthing is connected to crank chamber; One or more floss hole, is formed on outer weekly form dividually with crank chamber mouthIn face and be communicatively connected to drain chamber; One or more suction inlet, is formed in the side surface of endAnd be communicatively connected to suction chamber.
In addition, steam supply valve can comprise: air feed valve body, discharge valve chamber is formed in described air feed valve body, instituteOne end of stating air feed valve body is connected to operating unit and interlocks to transport by reciprocating mode with operating unitMoving, in outer surface, be adjacently formed one or more entrance with crank chamber mouth, in the other endPortion is formed with the outlet being connected communicatively with entrance, and the formation of steam supply valve body is for flow channel, described air feedRunner is formed between outer surface and the inwall of valve body; Functional arrangement, is tubular, described operating lineThe other end that road is connected to air feed valve body to be to be connected communicatively with outlet, and described functional arrangement pass through along withThe reciprocating motion of air feed valve body contacts the inwall of valve body or separates and optionally beat and open or close with described inwallClose for flow channel and the first discharge flow path.
In addition, drain valve can comprise: bellows, expands or shrinks according to the pressure of suction chamber; Valve seat,Contact in the mode by relative motion and move with bellows, described valve seat is along with expansion or the contraction of bellowsAnd motion is to open or close the second discharge flow path.
Here, drain valve also can comprise: tubular flow-catheter, one end is connected to valve seat, the other endOuter surface contacts to move slidably with the interior perimeter surface of steam supply valve according to the mode of face contact, outsideIn perimeter surface, be formed with one or more ingate, and be formed with and be communicatively connected to ingate and outletOutlet opening; Support spring, is arranged between the other end of flow-catheter and steam supply valve and leads to support to flowPipe.
Meanwhile, valve seat can comprise annular valve base surface, described valve base surface be formed on steam supply valve inThe connecting surface at wall place contacts or separates to open or close the second discharge flow path, valve seat table with described inwallFace can be formed with respect to axioversion 91 spends to an angle within the scope of 119 degree. In addition connect,Surface can be vertical surface, or tiltably forms.
In addition, operating unit can comprise: pin, is arranged in valve body vertically; Piston, one end can be slidedBe connected to pin to move by reciprocating mode by driver element, the other end is connected to air feed movinglyValve.
In addition, described control valve also can comprise support portion, and this support portion comprises: supporting member, one end connectsReceive pin and be fixed, the other end supports one end of bellows; Spring, is connected to supporting member; StopDevice, is connected to spring, the motion that described retainer restriction valve seat carries out with bellows contract.
In addition, described control valve also can comprise: noise control unit, be arranged between supporting member and piston withPrevent noise, thereby generation resistance is resisted the sliding motion of operating unit. Noise control unit can comprise: anti-The ring of making an uproar, connects along the outer surface of supporting member; Multiple contact protrusions, are formed outside noise control ringPerimeter surface is outstanding apart from each other. Here, contact protrusion can be separated from each other 120 along the outer surface of noise control ringThe gap of degree and arranging, and can be hemispherical to contact with the side surface of piston according to the mode of a contact.
In addition, described control valve also can comprise: noise control member, be arranged between valve body and steam supply valve,And the contact impact that absorbs valve body and operating unit is to prevent contact noise. Noise control member can be ringwise withOuter surface along steam supply valve connects, and can be made up of elastomeric material.
Beneficial effect
Control valve for compressor according to the present invention provides following effect.
First, the impact of crank press is minimized, thereby control valve can stably operate.
Secondly, because bellows and valve seat are separated from each other, thus be easy to processing, and can reduce manufactureCost. In addition, can improve the reliability of product and can prevent operability and control performance deteriorated.
The 3rd, because be provided with noise control unit and produce the resistance of sliding motion of opposing operating unit, instituteReducing noise by reducing operating unit vibration (amplitude) vertically.
The 4th, can prevent by the contact impact being absorbed between valve body and operating unit by noise control memberOnly contact noise, and can prevent assembly from damaging and raising durability.
Brief description of the drawings
Fig. 1 shows according to an embodiment of the invention for the internal structure of the control valve of compressorCutaway view.
Fig. 2 has amplified the valve base surface of Fig. 1 and the amplification view of connecting surface.
Fig. 3 show the Fig. 1 in normal condition the control valve for compressor internal structure withAnd the mobile cutaway view of cold-producing medium.
Fig. 4 show the Fig. 1 in emissions status the control valve for compressor internal structure withAnd the mobile cutaway view of cold-producing medium.
Fig. 5 shows the cutaway view of the structure of the bellows of Fig. 1.
Fig. 6 is the enlarged drawing of the noise control unit of Fig. 1.
Fig. 7 is the perspective view of the noise control unit of Fig. 6.
Fig. 8 is the enlarged drawing of the noise control member of Fig. 1.
Fig. 9 is the perspective view of the noise control member of Fig. 8.
Detailed description of the invention
Below, describe with reference to the accompanying drawings the preferred embodiments of the present invention in detail.
Fig. 1 shows according to an embodiment of the invention for the internal structure of the control valve of compressorCutaway view, Fig. 2 has amplified the valve base surface of Fig. 1 and the amplification view of connecting surface. In addition, figure3 show internal structure and the refrigeration of the control valve for compressor of the Fig. 1 in normal conditionThe mobile cutaway view of agent, Fig. 4 shows the control for compressor of the Fig. 1 in emissions statusThe mobile cutaway view of the internal structure of valve and cold-producing medium. In addition, Fig. 5 shows the ripple of Fig. 1The cutaway view of the structure of pipe. In addition, Fig. 6 is the enlarged drawing of the noise control unit of Fig. 1, and Fig. 7 is Fig. 6The perspective view of noise control unit. In addition, Fig. 8 is the enlarged drawing of the noise control member of Fig. 1, and Fig. 9 is Fig. 8The perspective view of noise control member.
First with reference to Fig. 1, although not shown, according to an embodiment of the invention for the control of compressorValve 900 processed (following, to be called " control valve ") is for such compressor, and this compressor is many by usingIndividual piston and to from suction chamber suck cold-producing medium compress and the cold-producing medium of compression be disposed to dischargeChamber, described multiple pistons are connected to the swash plate (swashplate) being arranged in crank chamber, to transport by reciprocalMoving mode is moved. Because the structure of compressor is consistent with the structure of known oblique tray type compressor, thereforeTo not provide the detailed description of the structure to compressor, and can use various oblique tray type compressors. Meanwhile,In Fig. 1, Pc represents the refrigerant pressure of crank chamber, and Pd represents refrigerant emission pressure, and PsRepresent the suction refrigerant pressure of compressor.
Control valve 900 comprises valve body 100, operating unit 200, driver element 300, steam supply valve 400With drain valve 500.
Valve body 100 has inner chamber 101, and comprises: one or more crank chamber mouth 110, is formed onOn outer surface to be communicatively connected to crank chamber; One or more floss hole 120, is formed on peripheryOn surface to separate with crank chamber mouth 110 and to be communicatively connected to drain chamber; One or more suction inlet130, be formed on the side surface of one end to be communicatively connected to suction chamber. As mentioned above, due to suction inlet130 are formed on the periphery of valve body 100 along axial formation and crank chamber mouth 110 and floss hole 120On surface, therefore, can reduce valve body 100 along axial entire length.
Meanwhile, allow the flow channel that supplies that crank chamber mouth 110 is connected with floss hole 120 with communicating with each other (to seeFig. 3) and the first discharge flow path that allows crank chamber mouth 110 to be connected with suction inlet 130 with communicating with each otherBe formed in control valve 900 with the second discharge flow path (seeing Fig. 4). Here allow crank for flow channel,Chamber and drain chamber connect with communicating with each other and are formed between the inwall and steam supply valve 400 of main body 100. ThisOutward, the first discharge flow path allows crank chamber to be connected with suction chamber with communicating with each other and is formed on valve body 100Inwall and steam supply valve 400 between. The second discharge flow path be communicatively connected to the first discharge flow path and alongAxially form through discharge valve chamber 411 (will describe below). In addition, pass through the first valve for flow channel810 open or close, and the first discharge flow path opens or closes by second valve 820, and the second dischargeRunner opens or closes by the 3rd valve 830. Meanwhile, by retouching at steam supply valve 400 and drain valve 500In stating to being described for flow channel and the first discharge flow path and the second discharge flow path.
Operating unit 200 comprises pin (needle) 210 and piston (plunger) 220. Pin 210 alongBe axially disposed within valve body 100 interior to be fixed, and one end of pin 210 is connected to pin housing 212.Piston 220 is arranged in the inner chamber 101 of valve body 100 to move by reciprocating mode, piston 220One end be connected to slidably pin 210, with by driver element 300 and along axially by moving back and forthMode move, and the other end of piston 220 is connected to steam supply valve 400.
Driver element 300 is arranged in the inner chamber 101 of valve body 100, with in response to applying from outsideElectric current and operating unit 200 is moved by reciprocating mode. Preferably, solenoid is applied to drivingUnit 300, and solenoid in valve body 100 outside the end of pin 210 and pin housing 212Perimeter surface connects, and applies operating physical force to operating unit 200, so that operating unit 200 is along axially pressingReciprocating mode is moved. Here, solenoid is known coil solenoid, and therefore will not giveGo out solenoidal detailed description. Except solenoid, any structure all can be applicable to driver element 300,As long as this structure can be applied to operating physical force in response to the electric current applying from outside operating unit 200Can.
Steam supply valve 400 is connected to piston 220, interlocks with along axially-movable with piston 220, and forAlong with optionally opening or closing air supply runner and the first discharge flow path along axial moving.
Specifically, steam supply valve 400 comprises air feed valve body 410 and operating line 420. Discharge valve chamber 411Be formed in air feed valve body 410, and one end of air feed valve body be connected to operating unit 200 and with operationUnit 200 interlocks to move by reciprocating mode. In addition, one or more entrance 412 formsOn the outer surface of air feed valve body 410, with adjacent with crank chamber mouth 110, be communicatively connected to entrance 412Outlet 413 be formed on the middle part of the other end of steam supply valve 400. In this structure, for flow channel shapeBecome between the outer surface of steam supply valve 400 and the inwall of valve body 100.
Operating line 420 is tubular, and the other end that is connected to air feed valve body 410 is to be communicatively connected to outMouthfuls 413, and operating line 420 and air feed valve body 410 interlock with by back and forth along axial reciprocating motionThe mode of motion is moved. Along with the reciprocating motion of air feed valve body 410, air feed valve body 410 and valve bodyInwall contacts or separates with described inwall, so that the first valve 810 and second valve 820 are formed as optionallyOpen or close for flow channel and the first discharge flow path.
Drain valve 500 is arranged in steam supply valve 400,, is formed on discharge valve chamber 411 places that is, and forOpen or close the second discharge flow path according to the pressure of suction chamber. Drain valve 500 comprises bellows 510With valve seat 520.
Bellows 510 has the characteristic that expands or shrink according to pressure, and along being axially disposed within dischargeValve chamber 411 inside are so that the pressure of suction chamber raises or reduction. In the time that the pressure of suction chamber is high, bellowsShrink and move to left side, and in the time that the pressure of suction chamber is low, bellows expansion and move to right side.
One end of bellows 510 is fixed to supporting member 610 (will describe) below, and bellows 510The other end be connected to valve seat 520.
Valve seat 520 is along with the expansion of bellows 510 or contraction and move, to open or close the second dischargeRunner. Here, bellows 510 and valve seat 520 connect each other slidably according to the mode of Surface ContactTouch, and bellows and valve seat are separated from each other. Its detailed description will be described below.
Valve seat 520 contacts with the inwall of steam supply valve 400 or separates to form the 3rd valve 830 with described inwall,And have contact with the connecting surface 411 at inwall place that is formed on steam supply valve 400 or with described connecting surfaceValve base surface 521 separately.
Here, valve base surface 521 ringwise, and contact with the inwall of steam supply valve 400 or with described inWall is separately to open or close the second discharge flow path. At this moment, because opening/closing control area is large, thereforeCan open or close more accurately and stably the second discharge flow path.
With reference to Fig. 2, valve base surface 521 is formed as spending within the scope of 119 degree with respect to axioversion 91An angle [alpha].
Connecting surface 411 is vertical surfaces, and contacts with valve base surface 521 according to the mode of line contact.
Meanwhile, are vertical surfaces although had been illustrated in the accompanying drawings connecting surface 411, connecting surface411 can be formed as the surface tilting by chamfer machining. In this case, connecting surface 411 can shapeBecome have the identical gradient corresponding with the angle of valve base surface 521 with according to the mode of face contact withValve base surface 521 contacts, or can be formed as having the gradient different from the angle of valve base surface with byMode according to line contact contacts with valve base surface 521. Like this, connecting surface 411 can be according to respect to toolHave the valve base surface 521 of above-mentioned angle expectation effective control area and form according to difformity.
Drain valve 500 comprises the flow-catheter 530 that is connected to valve seat 520 and support spring 540.
Flow-catheter 530 is tubular, and one end of flow-catheter 530 is connected to valve seat 520, and it is anotherThe outer surface of one end contacts with the inner surface of steam supply valve 400 according to the mode of face contact, with slidablyMotion. In addition, one or more ingate 531 is formed on the outer surface of flow-catheter 530, andAnd be formed with the outlet opening 532 that is communicatively connected to ingate 531 and outlet opening 413. At this structureIn, cold-producing medium is introduced into by ingate 531 from outer surface, then passes through outlet opening 532 along axleTo being discharged. Support spring 540 is arranged between the other end and steam supply valve 400 of flow-catheter 530,With along axial elasticity support flow-catheter 530.
Meanwhile, control valve 900 also comprises that constraint drain valve 500 is along the axial support portion of moving 600,And support portion 600 comprises supporting member 610, spring 620 and retainer 630.
One end of supporting member 610 is connected to pin 210 to be fixed, and another of supporting member 610End is connected to one end of bellows 510 to support bellows 510. Spring 620 props up along being axially fixed toThe other end of support member 610, with the buffer of the motion as opposing retainer 630. Retainer 630Be connected to spring 620, and be set to separate with valve seat 520, with the contraction along with bellows 510The motion of constraint valve seat 520.
The operation of control valve 900 is described with reference to Fig. 3 and Fig. 4. First, control valve 900 is being describedBefore operation, the pressure that the normal condition of mentioning here refers to crank chamber is adjusted to the angle of controlling swash plateThe normal condition of degree, and the emissions status pressure that refers to suction chamber increases or the pressure of crank chamber notNormal high to open the abnormal state of discharge flow path.
First, the internal structure of the control valve 900 in normal condition is described with reference to Fig. 3. Work as controlValve 900, in the time of normal condition, when steam supply valve 400 moves to the rightmost side, is opened for flow channelAnd the second discharge flow path is closed, make the pressure in crank chamber be adjusted to the angle of controlling swash plate. ThisOutward, when bellows 510 expands, the first discharge flow path is closed, and the cold-producing medium edge of drain chamberAir feed flow passage to be introduced in crank chamber.
Meanwhile, when control valve is in abnormal state, that is, the pressure of suction chamber is because prolongation is exposed to sunUnder light and increase or the pressure of crank chamber due to liquid refrigerant when abnormal high emissions status,The operation of compressor can be delayed during the initial start of compressor. Therefore, in order to address this problem (exampleAs, in the operating delay of the emissions status lower compression machine of control valve 900), when control valve 900 is in dischargeWhen state, control valve 900 is controlled under emissions status, and describes in discharge shape with reference to Fig. 4The operation of the control valve 900 under state.
Control valve 900 under emissions status is controlled, and makes operating unit 200 move to close confessionFlow channel, and the first discharge flow path, the second discharge flow path connect to be opened communicatively, and crankThe cold-producing medium of chamber flows to be introduced in suction chamber along the first discharge flow path and the second discharge flow path, makesObtain the pressure decreased of crank chamber.
That is to say, when control valve 900 is during in emissions status, the pressure P s of suction chamber is for flow channelUnder the normal condition of opening, increase, although the first discharge flow path is closed, bellows 510 shrinks,Make drain valve 500 move to left side, thereby the second discharge flow path is opened. Then, at control valve 900In, when compressor start (conditioner running), operating unit 200 and steam supply valve 400 are transportedMove left side, make to close for flow channel, and the first discharge flow path is opened. By doing like this, work as controlValve 900 processed is in the time of emissions status, and the cold-producing medium of crank chamber is released along the first discharge flow path and second rowRoad flows to be introduced in suction chamber, makes the pressure decreased of crank chamber.
Meanwhile, along with continuing of emissions status, in the time that the pressure P c of crank chamber reduces fully, swash plate toolHave maximum swash plate angle, and therefore the discharge capacity of compressor increases to allow to be provided with the sky of compressorThe temperature of the evaporimeter of controlled atmosphere regulating device reduces rapidly. In the time that the temperature of evaporimeter reduces, suction chamberPressure P s also reduces, and in the time of the pressure decreased of suction chamber, bellows 510 expands, and therefore rowPut valve 500 and move to close the second discharge flow path. Therefore, steam supply valve 400 is by operating unit 200 quiltsOperation, makes mobile get clogged of cold-producing medium from crank chamber to suction chamber. That is to say, when control valve 900In the time of normal condition, only have for flow channel and open to allow the cold-producing medium of drain chamber by supplying flow channel BBe introduced in crank chamber, and therefore the pressure of crank chamber is adjusted to the angle of controlling swash plate. Work as suctionThe pressure of entering the room raise or the pressure of crank chamber abnormal when high, close for flow channel B, and firstDischarge flow path and the second discharge flow path C open, and are introduced in suction chamber with the cold-producing medium that allows crank chamber.Therefore, can effectively prevent the operating delay of compressor.
With reference to Fig. 5, bellows 510 and valve seat 520 are separated motion, instead of form.Compare with the typical structure that valve seat 520 is connected to be fixed by welding with bellows, according to of the present inventionStructure, easily processing, can reduce manufacturing cost and error rate, and can improve the reliable of control valveProperty.
More particularly, be connected the typical case's knot to be fixed by welding with valve seat 520 at bellows 510In structure, because the quantity of welding position increases, therefore the quantity of process for making also increases. Therefore,Machinability is bad, and manufacturing cost is increased. Specifically, in typical structure, when bellows 510When processed with valve seat 520, due to the mistake in adding, that is, and mistake (valve seat and ripple in weldingPipe 510 central axis in welding, depart from or due to the central axis of bellows 510 by flexing andDeparting from of the central axis that causes of motion), make between valve body 100 and drain valve 500 andBetween the piston 220 operating under certain interval and pin 210, cause unwanted contact, rub thereby increasedWiping power, makes operation become unstable. As a result, the control performance of control valve reduces.
But, in the structure that the bellows 510 illustrating and valve seat 520 separate, easily processing canReduce manufacturing cost. In addition, even if the central axis of valve seat 520 and bellows 510 departs from during fabrication,But owing to having the free degree between bellows and valve seat, the operation of valve seat 520 and operating unit is not yetCan be affected, thereby can prevent that the control performance of control valve 900 from reducing.
Meanwhile, although had been illustrated in the accompanying drawings bellows 510 and be inserted in valve seat 520 and be connected toValve seat 520, bellows surrounds retainer simultaneously, but this example is only preferred embodiment. MultipleEmbodiment is possible, only otherwise have make valve seat 520 along with the expansion of bellows 510 or contraction andThe structure that motion and bellows 510 are connected to be fixed with valve seat 520.
As mentioned above, because the pressure of crank chamber is along axially being compensated, therefore control valve 900 is like thisA kind of valve: not that the pressure of crank chamber is reacted, but the pressure of suction chamber is reacted, andAnd can stably operate. The discharge that control valve 900 can improve liquid refrigerant effectively postpones. ThisBe separated from each other but be connected integratedly with valve seat 520 because control valve 900 has the bellows of making 510 outward,With the structure being fixed, therefore easily process and can reduce manufacturing cost. In addition, can improve productThe reliability of product, and can prevent that operability and control performance from reducing.
In addition, control valve 900 comprises noise control unit 700, and noise control unit 700 is arranged on supporting member 610And between piston 220, to prevent that noise from producing resistance to the sliding motion of operating unit 200.
With reference to Fig. 6, noise control unit 700 is arranged between supporting member 610 and piston 220, with deliberatelyProduce resistance and resist the sliding motion of operating unit 200, and when operating unit 200 and valve body 100Contact with each other and produce while impact, noise control unit is used for by reducing operating unit 200 along axial shakingMove (amplitude) and prevent noise.
Noise control unit 700 comprises noise control ring 710 and contact protrusion 720. Here, noise control ring 710 is ringShape, and be installed on the outer surface of supporting member 610.
Contact protrusion 720 be set to from the outer surface of noise control ring 710 outstanding with piston 220 inSurface Contact, and resist piston 220 along axial moving for generation of predetermined resistance.
Meanwhile, contact protrusion 720 contacts with piston 220, to produce the connecing of motion of opposing piston 220Touch resistance, and this resistance has such scope in the time that it designs, this scope does not affect operating unit200 normal operating.
Therefore, contact protrusion 720 has hemispherical. By doing like this, the contact contacting with piston 220The surface of projection contacts with piston according to the mode of a contact. But the shape of contact protrusion 720 can be certainlySo change, so that according to the amplitude of resistance of expecting, and the design of control valve 900 contacts according to line or face connectsTactile mode contacts with piston 220.
With reference to Fig. 7, multiple contact protrusions 720 are set to divide each other along the outer surface of noise control ring 710Open, and along the be separated from each other gap of 120 degree of the outer surface of noise control ring 710, to have and pistonThree contact sites of 220 contacts. But this example is only an embodiment, and various quantity can be setContact protrusion. For example, two or four contact protrusion 720 can be set, connect to there is two or fourThe portion of touching.
Meanwhile, although had been illustrated in the accompanying drawings noise control ring 710 and be connected to the periphery of supporting member 610Surface, but noise control ring 710 can be connected to pin 210 to be fixed, and contact protrusion 720 can with workThe inner surface contact of plug 220.
In addition, contact protrusion 720 can form using as a main body manufacture with noise control ring 710,Or noise control ring 710 and contact protrusion 720 can be constructed to independent member to be connected to each other. At this moment,When noise control ring 710 and contact protrusion 720 are constructed to independent member when being connected to each other, contact protrusion720 have spherical or have the structure that makes contact protrusion be connected to noise control ring 710, to work as piston 220During along axially-movable, make contact protrusion rotate. Like this, contact protrusion can be according to the resistance of expectingAmplitude and differently design. In addition, noise control unit 700 can be according to impact and frictional resistance and by various materialsMaterial (for example, elastomeric material etc.) is made.
In addition, control valve 900 comprises noise control member 800, and noise control member 800 is arranged on valve body 100And between steam supply valve 400, and absorb the contact impact between valve body 100 and steam supply valve 400, in caseOnly contact noise.
With reference to Fig. 8, noise control member 800 is arranged between valve body 100 and steam supply valve 400, and absorbsContact impact between valve body 100 and steam supply valve 400, to prevent contact noise. Specifically, anti-The member 800 of making an uproar is connected to the outer surface of the steam supply valve 400 contacting with the inner surface of valve body 100, and inhalesReceive the contact impact between valve body 100 and steam supply valve 400, to prevent contact noise.
With reference to Fig. 9, noise control member 800 ringwise, and is installed on the outer surface of steam supply valve 400.
In addition, noise control member 800 is made up of the elastomeric material that can effectively absorb contact impact. But,This example is only an embodiment, and noise control member 800 can be made up of silicon materials or resin material,As long as can reduce the contact noise between valve body 100 and steam supply valve 400.
Although the embodiment shown in reference has described the present invention, embodiment is only example. WillUnderstand, those skilled in the art can differently change embodiment and its equivalent is also possible.Therefore, technical scope of the present invention should be defined by the claims.
Applicability in industry
The present invention is applied to the compressor for the cooling system of the conditioner of vehicle.
Claims (17)
1. for a control valve for compressor, described compressor by using multiple pistons to from suckingThe cold-producing medium that chamber sucks compresses and the cold-producing medium of compression is disposed to drain chamber, and described multiple pistons connectReceive the swash plate that is arranged on crank chamber place to move by reciprocating mode, described control valve comprises:
Valve body is formed with inner chamber in described valve body;
Operating unit, is arranged in the inner chamber of valve body, to move by reciprocating mode;
Driver element, is arranged in the inner chamber of valve body, to make behaviour in response to the electric current applying from outsideMaking unit moves by reciprocating mode;
Steam supply valve has discharge valve chamber in described steam supply valve, described discharge valve chamber be provided with for flow channel,The first discharge flow path and the second discharge flow path, the described inwall that is formed on steam supply valve and valve body for flow channelBetween with allow crank chamber be connected communicatively with drain chamber, described the first discharge flow path be formed on steam supply valve withBetween the inwall of valve body, be connected communicatively described the second discharge flow path edge with suction chamber with permission crank chamberAxially form to be connected communicatively with the first discharge flow path through discharge valve chamber, described discharge valve chamber connectsTo operating unit with operating unit interlocking and move by reciprocating mode, and described discharge valve chamber choosingOpen or close to selecting property for flow channel and the first discharge flow path;
Drain valve, is arranged on discharge valve chamber place, and opens or closes second row according to the pressure of suction chamberRelease.
2. control valve according to claim 1, wherein, valve body comprises:
One or more crank chamber mouth, is formed in outer surface and is communicatively connected to crank chamber;
One or more floss hole, is formed on dividually in outer surface and connects communicatively with crank chamber mouthReceive drain chamber;
One or more suction inlet, is formed in the side surface of end and is communicatively connected to suction chamber.
3. control valve according to claim 2, wherein, steam supply valve comprises:
Air feed valve body, discharge valve chamber is formed in described air feed valve body, and one end of described air feed valve body connectsInterlock to move by reciprocating mode to operating unit and with operating unit, in outer surface with crankChamber mouth has been adjacently formed one or more entrance, be formed with at the middle part of the other end with entrance communicativelyThe outlet connecting, and be formed between outer surface and the inwall of valve body for flow channel;
Functional arrangement, is tubular, and described functional arrangement is connected to the other end of air feed valve body to connect with outletEarthing connects, and described functional arrangement is by the inwall of the reciprocating motion contact valve body along with air feed valve bodyOr separate with described inwall and optionally open or close for flow channel and the first discharge flow path.
4. control valve according to claim 1, wherein, drain valve comprises:
Bellows, expands or shrinks according to the pressure of suction chamber;
Valve seat, contacts in the mode by relative motion and moves with bellows, and described valve seat is along with bellowsExpand or shrink and motion to open or close the second discharge flow path.
5. control valve according to claim 4, wherein, drain valve also comprises:
Tubular flow-catheter, one end is connected to valve seat, and the outer surface of the other end is according to the side of face contactFormula contacts to move slidably with the interior perimeter surface of steam supply valve, is formed with one or more in outer surfaceMultiple ingates, and be formed with the outlet opening that is communicatively connected to ingate and steam supply valve outlet;
Support spring, is arranged between the other end of flow-catheter and steam supply valve to support flow-catheter.
6. according to the control valve described in claim 4 or 5, wherein,
Valve seat comprises annular valve base surface, described valve base surface and the company at inwall place that is formed on steam supply valveConnect Surface Contact or separate to open or close the second discharge flow path with described inwall,
Valve base surface is formed with respect to axioversion 91 spends to an angle within the scope of 119 degree.
7. according to the control valve described in claim 4 or 5, wherein,
Valve seat comprises annular valve base surface, described valve base surface and the company at inwall place that is formed on steam supply valveConnect Surface Contact or separate to open or close the second discharge flow path with described inwall,
Described connecting surface is vertical surface.
8. according to the control valve described in claim 4 or 5, wherein,
Valve seat comprises annular valve base surface, described valve base surface and the company at inwall place that is formed on steam supply valveConnect Surface Contact or separate to open or close the second discharge flow path with described inwall,
Described connecting surface is formed obliquely.
9. control valve according to claim 4, wherein, operating unit comprises:
Pin, is arranged in valve body vertically;
Piston, one end is connected to pin slidably to move by reciprocating mode by driver element,The other end is connected to steam supply valve.
10. control valve according to claim 9, described control valve also comprises support portion, this supportPortion comprises:
Supporting member, one end is connected to pin and is fixed, and the other end supports one end of bellows;
Spring, is connected to supporting member;
Retainer, is connected to spring, the motion that described retainer restriction valve seat carries out with bellows contract.
11. control valves according to claim 10, described control valve also comprises:
Noise control unit, is arranged between supporting member and piston to prevent noise, supports thereby produce resistanceThe sliding motion of anti-operating unit.
12. control valves according to claim 11, wherein, noise control unit comprises:
Noise control ring, connects along the outer surface of supporting member;
Multiple contact protrusions, are formed along the outer surface of noise control ring outstanding apart from each other.
13. control valves according to claim 12, wherein, contact protrusion is along the outer weekly form of noise control ringFace be separated from each other 120 degree gap and arrange.
14. control valves according to claim 12, wherein, contact protrusion is hemispherical, with according toThe mode of some contact contacts with the side surface of piston.
15. control valves according to claim 1, described control valve also comprises:
Noise control member, is arranged between valve body and steam supply valve, and absorbs contacting of valve body and steam supply valveImpact to prevent contact noise.
16. control valves according to claim 15, wherein, noise control member ringwise, with along air feedThe outer surface of valve connects.
17. according to the control valve described in claim 15 or 16, and wherein, noise control member is by elastomeric materialMake.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0107447 | 2011-10-20 | ||
| KR1020110107446A KR101858742B1 (en) | 2011-10-20 | 2011-10-20 | Control valve for compressor |
| KR1020110107447A KR101858743B1 (en) | 2011-10-20 | 2011-10-20 | Control valve for compressor |
| KR10-2011-0107446 | 2011-10-20 | ||
| KR1020110121657A KR101887690B1 (en) | 2011-11-21 | 2011-11-21 | Control valve for compressor |
| KR10-2011-0121657 | 2011-11-21 | ||
| PCT/KR2012/008595 WO2013058598A2 (en) | 2011-10-20 | 2012-10-19 | Control valve for compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103890391A CN103890391A (en) | 2014-06-25 |
| CN103890391B true CN103890391B (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280051778.4A Active CN103890391B (en) | 2011-10-20 | 2012-10-19 | For the control valve of compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103890391B (en) |
| WO (1) | WO2013058598A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705510B (en) * | 2015-07-17 | 2019-11-15 | 浙江三花智能控制股份有限公司 | Electric expansion valve and its valve component |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0845593A1 (en) * | 1996-11-11 | 1998-06-03 | Sanden Corporation | Slant plate type compressor with variable capacity control mechanism |
| DE19805126A1 (en) * | 1997-02-10 | 1998-08-13 | Toyoda Automatic Loom Works | Variable displacement compressor for air conditioning systems |
| JP2000213458A (en) * | 1999-01-25 | 2000-08-02 | Sanden Corp | Displacement control valve mechanism for variable displacement compressor |
| JP2000220576A (en) * | 1999-01-29 | 2000-08-08 | Toyota Autom Loom Works Ltd | Control valve for variable displacement compressor |
| CN1646808A (en) * | 2002-04-09 | 2005-07-27 | 三电有限公司 | Variable displacement compressor |
| KR20100107178A (en) * | 2009-03-25 | 2010-10-05 | 학교법인 두원학원 | Displacement control valve of variable displacement compressor and assembly method thereof |
| KR20100127371A (en) * | 2009-05-26 | 2010-12-06 | 학교법인 두원학원 | Displacement control valve of variable displacement compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3585148B2 (en) * | 1996-12-16 | 2004-11-04 | 株式会社豊田自動織機 | Control valve for variable displacement compressor |
| JP3952425B2 (en) * | 1997-01-21 | 2007-08-01 | 株式会社豊田自動織機 | Control valve for variable capacity compressor, variable capacity compressor, and method for assembling control valve for variable capacity compressor |
| JP2001165055A (en) * | 1999-12-09 | 2001-06-19 | Toyota Autom Loom Works Ltd | Control valve and displacement variable compressor |
| JP4333047B2 (en) * | 2001-01-12 | 2009-09-16 | 株式会社豊田自動織機 | Control valve for variable capacity compressor |
| JP4456906B2 (en) * | 2004-03-25 | 2010-04-28 | 株式会社不二工機 | Control valve for variable capacity compressor |
-
2012
- 2012-10-19 WO PCT/KR2012/008595 patent/WO2013058598A2/en active Application Filing
- 2012-10-19 CN CN201280051778.4A patent/CN103890391B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0845593A1 (en) * | 1996-11-11 | 1998-06-03 | Sanden Corporation | Slant plate type compressor with variable capacity control mechanism |
| DE19805126A1 (en) * | 1997-02-10 | 1998-08-13 | Toyoda Automatic Loom Works | Variable displacement compressor for air conditioning systems |
| JP2000213458A (en) * | 1999-01-25 | 2000-08-02 | Sanden Corp | Displacement control valve mechanism for variable displacement compressor |
| JP2000220576A (en) * | 1999-01-29 | 2000-08-08 | Toyota Autom Loom Works Ltd | Control valve for variable displacement compressor |
| CN1646808A (en) * | 2002-04-09 | 2005-07-27 | 三电有限公司 | Variable displacement compressor |
| KR20100107178A (en) * | 2009-03-25 | 2010-10-05 | 학교법인 두원학원 | Displacement control valve of variable displacement compressor and assembly method thereof |
| KR20100127371A (en) * | 2009-05-26 | 2010-12-06 | 학교법인 두원학원 | Displacement control valve of variable displacement compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013058598A2 (en) | 2013-04-25 |
| WO2013058598A3 (en) | 2013-06-13 |
| CN103890391A (en) | 2014-06-25 |
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