KR101104282B1 - Variable capacity type swash plate type compressor - Google Patents

Variable capacity type swash plate type compressor Download PDF

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Publication number
KR101104282B1
KR101104282B1 KR1020050098999A KR20050098999A KR101104282B1 KR 101104282 B1 KR101104282 B1 KR 101104282B1 KR 1020050098999 A KR1020050098999 A KR 1020050098999A KR 20050098999 A KR20050098999 A KR 20050098999A KR 101104282 B1 KR101104282 B1 KR 101104282B1
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KR
South Korea
Prior art keywords
swash plate
inclination angle
hub
drive shaft
sleeve
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KR1020050098999A
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Korean (ko)
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KR20070043118A (en
Inventor
안휴남
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한라공조주식회사
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Priority to KR1020050098999A priority Critical patent/KR101104282B1/en
Priority to CN2006800332941A priority patent/CN101278124B/en
Priority to US11/989,405 priority patent/US20090148312A1/en
Priority to PCT/KR2006/003190 priority patent/WO2007046580A1/en
Publication of KR20070043118A publication Critical patent/KR20070043118A/en
Application granted granted Critical
Publication of KR101104282B1 publication Critical patent/KR101104282B1/en

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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
    • F04B27/10—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
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1045—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
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • 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
    • F04B27/1009—Distribution members
    • F04B27/1018—Cylindrical 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
    • 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
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1054—Actuating elements
    • F04B27/1072—Pivot mechanisms
    • 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
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1081—Casings, housings
    • 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
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

본 발명은 가변용량형 사판식 압축기에 관한것으로서, 더욱 상세하게는 허브의 내측면에 스토퍼를 돌출형성하여 사판의 최대경사각시 슬리브측에 접촉하도록 함으로서 사판의 최대경사각을 지지하기 위한 스토퍼의 행정거리가 짧아지게 되어 에어컨의 OFF시 타격음을 감소시킨 가변용량형 사판식 압축기에 관한 것이다.The present invention relates to a variable displacement swash plate type compressor, and more particularly, a stopper protruding from the inner side of the hub to contact the sleeve side at the maximum inclination angle of the swash plate, so as to support the maximum inclination angle of the swash plate. The present invention relates to a variable displacement swash plate compressor which has a shorter time and reduces blow sound when the air conditioner is turned off.

이에 본 발명은 내부에 다수의 실린더보어(111)를 갖는 실린더블록(110); 상기 실린더블록(110)의 전방에 장착되어 내부에 크랭크실(121)을 형성하는 전방하우징(120) 및 상기 실린더블록(110)의 후방에 장착되며 내부에 흡입실(131)과 토출실(132)을 갖는 후방하우징(130); 상기 실린더블록(110)과 전방하우징(120)에 회전가능하게 설치되는 구동축(150); 상기 크랭크실(121)의 내부에서 상기 구동축(150)에 결합되어 구동축(150)과 함께 회전하는 로터(160); 상기 로터(160)의 힌지암(161)에 유동가능하게 연결됨과 아울러 상기 구동축(150)에 슬라이딩 가능하게 결합된 슬리브(165)에 회동가능하게 결합되는 허브(171) 및 상기 허브(171)에 결합되는 사판플레이트(172)로 구성되어 상기 크랭크실(121)의 압력 변화에 대응하여 경사각이 변화하는 사판(170); 상기 로터(160)와 사판(170) 사이의 구동축(150)상에 설치되며 사판(170)을 초기위치로 복귀시키는 스프링(155)을 포함하는 가변용량형 사판식 압축기에 있어서, 상기 허브(171)와 슬리브(165)의 사이에는 사판(170)의 최대경사각을 지지하여 에어컨 OFF시 타격음을 감소할 수 있도록 최대경사각 지지수단(175)이 구비되는 것을 특징으로 한다.The present invention is a cylinder block 110 having a plurality of cylinder bores (111) therein; The front housing 120 is mounted to the front of the cylinder block 110 to form a crank chamber 121 therein and the rear of the cylinder block 110 and the suction chamber 131 and the discharge chamber 132 therein. Rear housing (130); A drive shaft 150 rotatably installed on the cylinder block 110 and the front housing 120; A rotor 160 coupled to the drive shaft 150 in the crank chamber 121 and rotating together with the drive shaft 150; The hub 171 and the hub 171 rotatably coupled to the hinge arm 161 of the rotor 160 and rotatably coupled to the sleeve 165 slidably coupled to the drive shaft 150. A swash plate 170 configured to be coupled to a swash plate 172 to change an inclination angle in response to a pressure change of the crank chamber 121; In the variable displacement swash plate type compressor including a spring 155 is installed on the drive shaft 150 between the rotor 160 and the swash plate 170 and returns the swash plate 170 to the initial position, the hub 171 The maximum inclination angle support means 175 is provided between the sleeve 165 and the sleeve 165 to support the maximum inclination angle of the swash plate 170 to reduce the impact sound when the air conditioner is turned off.

압축기, 사판, 로터, 허브, 슬리브, 스토퍼 Compressor, swash plate, rotor, hub, sleeve, stopper

Description

가변용량형 사판식 압축기{Variable capacity type swash plate type compressor}Variable capacity swash plate type compressor

도 1은 종래의 가변용량형 사판식 압축기를 나타내는 단면도,1 is a cross-sectional view showing a conventional variable displacement swash plate compressor;

도 2는 본 발명에 따른 가변용량형 사판식 압축기를 나타내는 단면도,2 is a cross-sectional view showing a variable displacement swash plate compressor according to the present invention;

도 3은 도 2에서 사판과 로터를 분해한 상태를 나타내는 사시도,3 is a perspective view illustrating a state in which the swash plate and the rotor are disassembled in FIG. 2;

도 4는 본 발명에 따른 가변용량형 사판식 압축기에서 사판의 경사각이 최소각일때를 나타내는 단면도,Figure 4 is a cross-sectional view showing when the inclination angle of the swash plate in the variable displacement swash plate compressor according to the present invention the minimum angle,

도 5는 본 발명에 따른 가변용량형 사판식 압축기에서 사판의 경사각이 최대각일때를 나타내는 단면도이다.5 is a cross-sectional view showing the inclination angle of the swash plate is the maximum angle in the variable displacement swash plate compressor according to the present invention.

<도면의 주요부분에 대한 부호 설명>Description of the Related Art [0002]

100: 압축기 110: 실린더블록100: compressor 110: cylinder block

111: 실린더보어 120: 전방하우징111: cylinder bore 120: front housing

121: 크랭크실 130: 후방하우징121: crankcase 130: rear housing

131: 흡입실 132: 토출실131: suction chamber 132: discharge chamber

140: 피스톤 141: 브릿지140: piston 141: bridge

145: 슈 150: 구동축145: shoe 150: drive shaft

155: 스프링 160: 로터155: spring 160: rotor

161: 힌지암 162: 슬롯161: hinge arm 162: slot

165: 슬리브 166: 허브핀165: sleeve 166: hub pin

170: 사판 171: 허브170: Saphan 171: the hub

172: 사판플레이트 173: 연결힌지암172: swash plate 173: connecting hinge arm

174: 힌지핀 175: 최대경사각 지지수단174: hinge pin 175: maximum inclination support means

176: 스토퍼176: stopper

180: 밸브유니트 190: 컨트롤밸브180: valve unit 190: control valve

본 발명은 가변용량형 사판식 압축기에 관한것으로서, 더욱 상세하게는 허브의 내측면에 스토퍼를 돌출형성하여 사판의 최대경사각시 슬리브측에 접촉하도록 함으로서 사판의 최대경사각을 지지하기 위한 스토퍼의 행정거리가 짧아지게 되어 에어컨의 OFF시 타격음을 감소시킨 가변용량형 사판식 압축기에 관한 것이다.The present invention relates to a variable displacement swash plate type compressor, and more particularly, a stopper protruding from the inner side of the hub to contact the sleeve side at the maximum inclination angle of the swash plate, so as to support the maximum inclination angle of the swash plate. The present invention relates to a variable displacement swash plate compressor which has a shorter time and reduces blow sound when the air conditioner is turned off.

자동차용 공조장치를 구성하는 압축기는 동력원으로부터의 동력을 전자클러치의 단속작용에 의하여 선택적으로 전달받아 증발기로부터 냉매가스를 내부에 흡입하여 피스톤의 직선왕복운동에 의하여 압축한 후 응축기쪽으로 토출하는 장치이다. 이러한 압축기는 압축방식 및 구조에 따라 다양한 종류로 나뉘고, 이들 압축기들 중에는 압축용적을 변화시킬 수 있는 가변용량형 압축기도 많이 사용되고 있다.Compressor constituting the air conditioner for automobile is a device that selectively receives the power from the power source by the intermittent action of the electromagnetic clutch, sucks the refrigerant gas from the evaporator, compresses it by the linear reciprocating motion of the piston, and discharges it toward the condenser. . These compressors are divided into various types according to the compression method and structure, and among these compressors, variable capacity compressors that can change the compression volume are also widely used.

이하, 도 1 을 참조하여 종래 일반적인 가변용량형 사판식 압축기를 예를 들 어 설명한다.Hereinafter, a conventional general variable displacement swash plate compressor will be described with reference to FIG. 1.

가변용량형 사판식 압축기(1)는, 내부에 동심원을 따라 축방향으로 다수의 실린더보어(11)가 형성된 실린더블록(10)과, 상기 실린더블록(10)의 전방측에 장착되어 내부에 크랭크실(21)을 형성하는 전방하우징(20)과, 상기 실린더블록(10)의 후방측에 장착되며 내부에 흡입실(31) 및 토출실(32)을 갖는 후방하우징(30)과, 상기 실린더블록(10)의 각 실린더보어(11)에 왕복운동가능하게 삽입되고 후단부에 브릿지(41)가 형성된 다수의 피스톤(40)과, 일단부가 상기 전방하우징(20)을 회전가능하게 관통하고 후단부는 상기 실린더블록(10)의 중앙에 삽입되어 회전가능하게 설치되는 구동축(50)과, 상기 크랭크실(21)의 내부에서 상기 구동축(50)에 결합되어 구동축(50)과 함께 회전하는 로터(60)와, 상기 구동축(50)의 둘레에 슬리브(65)를 슬라이딩 가능하게 결합하여 설치되고 가장자리가 상기 피스톤(40) 브릿지(41)의 삽입공간에 슈(45)를 개재하여 회전가능하게 결합됨과 아울러 상기 로터(60)의 힌지암(61)에 유동가능하게 연결되어 로터(60)와 함께 회전하면서 구동축(50)에 대하여 경사조절 가능하도록 설치되는 사판(70)과, 상기 실린더블록(10)과 후방하우징(30)의 사이에 설치되어 흡입행정시 흡입실(31)로부터 실린더보어(11)내로 냉매를 흡입하고 압축행정시 실린더보어(11)로부터 토출실(32)로 압축냉매를 배출하기 위한 밸브유니트(80)를 포함하여 이루어진다.The variable displacement swash plate compressor (1) has a cylinder block (10) having a plurality of cylinder bores (11) formed in an axial direction along a concentric circle therein, and mounted on the front side of the cylinder block (10) and cranks therein. The front housing 20 forming the seal 21, the rear housing 30 mounted on the rear side of the cylinder block 10 and having a suction chamber 31 and a discharge chamber 32 therein, and the cylinder A plurality of pistons 40 are reciprocally inserted into the respective cylinder bores 11 of the block 10 and the bridge 41 is formed at the rear end thereof, and one end thereof rotatably penetrates the front housing 20 and the rear end thereof. The part is inserted into the center of the cylinder block 10, the drive shaft 50 is rotatably installed, and the rotor coupled to the drive shaft 50 in the crank chamber 21 to rotate together with the drive shaft 50 ( 60 and the sleeve 65 is slidably coupled around the drive shaft 50. The long position is rotatably coupled to the insertion space of the piston 40 bridge 41 via the shoe 45, and is also rotatably connected to the hinge arm 61 of the rotor 60 so that the rotor 60 is provided. And a swash plate 70 which is installed to be tiltable with respect to the drive shaft 50 and rotates together with the cylinder block 10 and the rear housing 30 to rotate with the cylinder bore from the suction chamber 31 during the suction stroke. And a valve unit 80 for sucking the refrigerant into the cylinder and discharging the compressed refrigerant from the cylinder bore 11 to the discharge chamber 32 during the compression stroke.

또한, 상기 구동축(50)에 대한 사판(70)의 경사각은 상기 후방하우징(30)에 설치된 컨트롤밸브(90)에 의한 크랭크실(21) 내의 압력변화에 따라 조절된다.In addition, the inclination angle of the swash plate 70 with respect to the drive shaft 50 is adjusted according to the pressure change in the crank chamber 21 by the control valve 90 installed in the rear housing 30.

그리고, 상기 로터(60)와 사판(70) 사이의 구동축(50)상에 개재된 압축코일 스프링(55)은 상기 사판(70)이 회동 가능하게 결합된 슬리브(65)를 로터(60)에 대하여 탄력 지지함으로서 사판(70)을 초기 위치로 복귀시키는 작용을 한다.In addition, the compression coil spring 55 interposed on the drive shaft 50 between the rotor 60 and the swash plate 70 has a sleeve 65 in which the swash plate 70 is rotatably coupled to the rotor 60. By resiliently supporting the swash plate 70 serves to return to the initial position.

한편, 상기 로터(60)의 힌지암(61)에는 슬롯(62)이 형성되고, 상기 로터(60)의 힌지암(61)과 마주하는 상기 사판(70)의 허브(71)에는 상기 힌지암(61)의 양측으로 돌출되며 상기 힌지암(61)의 슬롯(62)에 유동가능하게 결합되도록 힌지핀(74)을 갖는 연결힌지암(73)이 형성된다.Meanwhile, a slot 62 is formed in the hinge arm 61 of the rotor 60, and the hinge arm is formed in the hub 71 of the swash plate 70 facing the hinge arm 61 of the rotor 60. A connecting hinge arm 73 having a hinge pin 74 is formed to protrude to both sides of the 61 and to be fluidly coupled to the slot 62 of the hinge arm 61.

상기한 바와같이, 가변용량형 사판식 압축기(1)는, 상기 사판(70)의 회전에 의하여 상기 실린더블록(10)의 동심원을 따라 배치된 다수의 피스톤(40)들이 순차적으로 전,후 왕복운동을 하게 된다.As described above, in the variable displacement swash plate compressor 1, a plurality of pistons 40 arranged along a concentric circle of the cylinder block 10 are sequentially reciprocated before and after by the rotation of the swash plate 70. You exercise.

여기서, 상기 피스톤(40)의 흡입행정시에는 상기 실린더보어(11) 내부의 압력강하에 의하여 상기 밸브유니트(80)의 흡입밸브(미도시)가 개방되어 실린더보어(11)와 흡입실(31)이 연통되므로 흡입실(31)로부터 실린더보어(11)내로 냉매가 유입된다.In this case, during the suction stroke of the piston 40, the suction valve (not shown) of the valve unit 80 is opened by the pressure drop in the cylinder bore 11 to open the cylinder bore 11 and the suction chamber 31. ) Is communicated with the refrigerant flows into the cylinder bore (11) from the suction chamber (31).

그리고, 상기 피스톤(40)의 압축행정시에는 상기 실린더보어(11) 내부의 압력증가에 의하여 냉매가 압축되면서 상기 밸브유니트(80)의 토출밸브(미도시)가 개방되어 실린더보어(11)와 토출실(32)이 연통되므로 상기 실린더보어(11)로 부터 토출실(32)로 압축냉매가 배출된다.In the compression stroke of the piston 40, the refrigerant is compressed by an increase in the pressure inside the cylinder bore 11, and a discharge valve (not shown) of the valve unit 80 opens to open the cylinder bore 11. Since the discharge chamber 32 is in communication, the compressed refrigerant is discharged from the cylinder bore 11 to the discharge chamber 32.

아울러, 상기 크랭크실(21) 내의 압력과 실린더보어(11) 내의 흡입압과의 차압에 대응하여 상기 사판(70)의 경사각이 조절됨으로서 압축기(1)의 토출용량이 가변된다.In addition, since the inclination angle of the swash plate 70 is adjusted in response to the pressure difference between the pressure in the crank chamber 21 and the suction pressure in the cylinder bore 11, the discharge capacity of the compressor 1 is variable.

한편, 상기 사판(70)의 허브(71)에는 사판(70)의 최대경사각을 지지할 수 있도록 상기 연결힌지암(73)의 반대편에 스토퍼(72)가 형성된다.On the other hand, the hub 71 of the swash plate 70 is formed with a stopper 72 on the opposite side of the connecting hinge arm 73 to support the maximum inclination angle of the swash plate 70.

따라서, 상기 압축기(1)가 최대각 조건일 때, 상기 사판(70)의 경사각이 최대각으로 변위되고 이때 압축코일 스프링(55)은 압축됨과 동시에 상기 스토퍼(72)가 상기 로터(60)의 일측면에 접촉하여 사판(70)의 최대경사각을 지지하게 된다.Therefore, when the compressor 1 is at the maximum angle condition, the inclination angle of the swash plate 70 is displaced to the maximum angle, and at this time, the compression coil spring 55 is compressed and the stopper 72 of the rotor 60 In contact with one side to support the maximum inclination angle of the swash plate (70).

그러나, 상기 사판(70)이 최대경사각으로 변위될 때, 상기 스토퍼(72)가 로터(60)에 접촉하면서 발생하는 타격음에 의해 소음이 발생하는 문제가 있다.However, when the swash plate 70 is displaced at the maximum inclination angle, there is a problem that noise is generated by the impact sound generated while the stopper 72 contacts the rotor 60.

특히, 에어컨의 OFF시 크랭크실(21) 내부의 냉매가 팽창하여 타격음을 크게 유발하는 문제가 있었다.In particular, when the air conditioner is OFF, there is a problem that the refrigerant inside the crank chamber 21 expands and causes a large blow sound.

즉, 상기 스토퍼(72)가 상기 사판(70)과 로터(60)를 연결하는 힌지암(61,73)으로부터 먼곳에 위치하면서 스토퍼(72)의 행정거리가 길어짐에 따라 타격음이 더욱 크게 발생하는 것이다.That is, as the stopper 72 is located far from the hinge arms 61 and 73 connecting the swash plate 70 and the rotor 60, the stroke sound of the stopper 72 becomes longer, resulting in a greater blow sound. will be.

상기한 종래의 문제점을 해결하기 위한 본 발명의 목적은 상기 허브의 내측면에 스토퍼를 돌출형성하여 사판의 최대경사각시 슬리브측에 접촉하도록 함으로서 사판의 최대경사각을 지지하기 위한 스토퍼의 행정거리가 짧아지게 되어 에어컨의 OFF시 타격음을 감소시킨 가변용량형 사판식 압축기를 제공하는데 있다.An object of the present invention for solving the above problems is to shorten the stroke length of the stopper for supporting the maximum inclination angle of the swash plate by forming a stopper on the inner surface of the hub to contact the sleeve side at the maximum inclination angle of the swash plate The present invention provides a variable displacement swash plate compressor that reduces blow sound when the air conditioner is turned off.

상기의 목적을 달성하기 위한 본 발명은 내부에 다수의 실린더보어를 갖는 실린더블록; 상기 실린더블록의 전방에 장착되어 내부에 크랭크실을 형성하는 전방 하우징 및 상기 실린더블록의 후방에 장착되며 내부에 흡입실과 토출실을 갖는 후방하우징; 상기 실린더블록과 전방하우징에 회전가능하게 설치되는 구동축; 상기 크랭크실의 내부에서 상기 구동축에 결합되어 구동축과 함께 회전하는 로터; 상기 로터의 힌지암에 유동가능하게 연결됨과 아울러 상기 구동축에 슬라이딩 가능하게 결합된 슬리브에 회동가능하게 결합되는 허브 및 상기 허브에 결합되는 사판플레이트로 구성되어 상기 크랭크실의 압력 변화에 대응하여 경사각이 변화하는 사판; 상기 로터와 사판 사이의 구동축상에 설치되며 사판을 초기위치로 복귀시키는 스프링을 포함하는 가변용량형 사판식 압축기에 있어서, 상기 허브와 슬리브의 사이에는 사판의 최대경사각을 지지하여 에어컨 OFF시 타격음을 감소할 수 있도록 최대경사각 지지수단이 구비되는 것을 특징으로 한다.The present invention for achieving the above object is a cylinder block having a plurality of cylinder bores therein; A front housing mounted at the front of the cylinder block to form a crank chamber therein and a rear housing mounted at the rear of the cylinder block and having a suction chamber and a discharge chamber therein; A drive shaft rotatably installed on the cylinder block and the front housing; A rotor coupled to the drive shaft in the crank chamber and rotating together with the drive shaft; It is composed of a hub coupled to the hinge arm of the rotor and slidably coupled to a sleeve slidably coupled to the drive shaft and a swash plate coupled to the hub, the inclination angle corresponding to the pressure change of the crank chamber. Swash plate changing; In the variable displacement swash plate type compressor comprising a spring installed on the drive shaft between the rotor and the swash plate, and returning the swash plate to the initial position, between the hub and the sleeve supports the maximum inclination angle of the swash plate to blow the sound when the air conditioner OFF Characterized in that the maximum inclination support means to be reduced.

이하, 본 발명을 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

종래에 있어서와 동일한 구성 및 작용에 대한 반복되는 설명은 생략한다.Repeated description of the same construction and operation as in the prior art will be omitted.

도 2는 본 발명에 따른 가변용량형 사판식 압축기를 나타내는 단면도이고, 도 3은 도 2에서 사판과 로터를 분해한 상태를 나타내는 사시도이며, 도 4는 본 발명에 따른 가변용량형 사판식 압축기에서 사판의 경사각이 최소각일때를 나타내는 단면도이고, 도 5는 본 발명에 따른 가변용량형 사판식 압축기에서 사판의 경사각이 최대각일때를 나타내는 단면도이다.Figure 2 is a cross-sectional view showing a variable displacement swash plate compressor according to the present invention, Figure 3 is a perspective view showing the disassembled swash plate and the rotor in Figure 2, Figure 4 is a variable displacement swash plate compressor in accordance with the present invention 5 is a cross-sectional view showing when the inclination angle of the swash plate is the minimum angle, Figure 5 is a cross-sectional view showing when the inclination angle of the swash plate in the variable displacement swash plate type compressor according to the present invention.

도시된 바와 같이, 본 발명에 따른 가변용량형 사판식 압축기(100)는 동심원상에 축방향으로 다수의 실린더보어(111)가 형성된 실린더블록(110)이 구비되고, 상기 실린더블록(110)의 전방측에는 내부에 크랭크실(121)을 형성하는 전방하우징 (120)이 장착되며, 상기 실린더블록(110)의 후방측에는 내부에 흡입실(131) 및 토출실(132)을 형성하는 후방하우징(130)이 장착된다.As shown, the variable displacement swash plate compressor 100 according to the present invention is provided with a cylinder block 110 in which a plurality of cylinder bores 111 are formed in an axial direction on a concentric circle. A front housing 120 is formed at the front side to form a crank chamber 121 therein, and a rear housing 130 is formed at the rear side of the cylinder block 110 to form the suction chamber 131 and the discharge chamber 132 therein. ) Is mounted.

상기 실린더블록(110)의 각 실린더보어(111)에는 후단부에 브릿지(141)가 형성된 다수의 피스톤(140)이 왕복운동가능하게 삽입 설치된다.Each of the cylinder bores 111 of the cylinder block 110 is provided with a plurality of pistons 140 formed with a bridge 141 at the rear end to be reciprocally inserted.

그리고, 일단부가 상기 전방하우징(120)을 회전가능하게 관통하고 후단부는 상기 실린더블록(110)의 중앙에 삽입되어 회전가능하게 지지되는 구동축(150)이 설치된다.Then, one end is rotatably penetrating the front housing 120, the rear end is inserted into the center of the cylinder block 110 is installed a drive shaft 150 is rotatably supported.

또한, 상기 크랭크실(121)의 내부에서 상기 구동축(150)에 결합되어 구동축(150)과 함께 회전하는 로터(160)가 설치된다.In addition, a rotor 160 coupled to the drive shaft 150 in the crank chamber 121 and rotating together with the drive shaft 150 is installed.

그리고, 상기 크랭크실(121)의 내부에서 상기 구동축(150)상에 슬라이딩 가능하게 결합된 슬리브(165)에 회동가능하게 설치됨과 아울러 가장자리는 상기 피스톤(140) 브릿지(141)의 삽입공간에 슈(145)를 개재하여 회전가능하게 결합되고 상기 로터(160)의 힌지암(161)에 유동가능하게 연결되어 로터(160)와 함께 회전하면서 구동축(150)에 대하여 경사각이 조절되는 사판(170)이 장착된다.In addition, the crank chamber 121 is rotatably installed on the sleeve 165 slidably coupled to the drive shaft 150 in the crank chamber 121, and an edge thereof is formed in the insertion space of the piston 140 bridge 141. The swash plate 170 is rotatably coupled via the 145 and slidably connected to the hinge arm 161 of the rotor 160 to rotate with the rotor 160 to adjust the inclination angle with respect to the drive shaft 150. Is fitted.

여기서, 상기 사판(170)은 상기 로터(160)의 힌지암(161)에 유동가능하게 연결됨과 아울러 상기 구동축(150)에 슬라이딩 가능하게 결합된 슬리브(165)에 허브핀(166)으로 회동가능하게 결합되는 허브(171)와, 상기 허브(171)의 외주면에 결합되는 사판플레이트(172)로 구성된다.Here, the swash plate 170 is rotatably connected to the hinge arm 161 of the rotor 160 and pivotable to the hub pin 166 on the sleeve 165 slidably coupled to the drive shaft 150. And a swash plate 172 coupled to the outer circumferential surface of the hub 171.

또한, 상기 로터(160)의 힌지암(161)에는 슬롯(162)이 형성되고, 상기 로터(160)의 힌지암(161)과 마주하는 상기 사판(170)의 허브(171)에는 상기 힌지암 (161)의 양측으로 돌출되며 상기 힌지암(161)의 슬롯(162)에 유동가능하게 결합되도록 힌지핀(174)을 갖는 연결힌지암(173)이 형성된다.In addition, a slot 162 is formed in the hinge arm 161 of the rotor 160, and the hinge arm is formed in the hub 171 of the swash plate 170 facing the hinge arm 161 of the rotor 160. A connecting hinge arm 173 having a hinge pin 174 is formed to protrude to both sides of the 161 and to be fluidly coupled to the slot 162 of the hinge arm 161.

따라서, 사판(170)의 경사각 변위시, 상기 힌지핀(174)이 슬롯(162)을 따라 슬라이딩 하면서 사판(170)의 경사운동을 지지하게 된다.Accordingly, when the inclination angle of the swash plate 170 is displaced, the hinge pin 174 slides along the slot 162 to support the inclined motion of the swash plate 170.

그리고, 상기 실린더블록(110)과 후방하우징(130) 사이에 설치되어 피스톤(140)의 흡입행정시 흡입실로(131)부터 실린더보어(111)내로 냉매를 흡입하고 압축행정시 실린더보어(111)로부터 토출실(132)로 압축냉매를 배출하기 위한 밸브유니트(180)가 설치된다.Then, it is installed between the cylinder block 110 and the rear housing 130 to suck the refrigerant from the suction chamber 131 to the cylinder bore 111 during the suction stroke of the piston 140, the cylinder bore 111 during the compression stroke The valve unit 180 for discharging the compressed refrigerant from the discharge chamber 132 is provided.

한편, 상기 후방하우징(130)에는 컨트롤밸브(190)가 설치되어 상기 토출실(132)과 크랭크실(121)을 작동적으로 연통시킴으로서 상기 실린더보어(111)내의 냉매흡입압과 크랭크실(121)내의 가스압과의 차압을 가변시켜 상기 사판(170)의 경사각이 조절되도록 하는 작용을 한다.On the other hand, the rear housing 130 is provided with a control valve 190 to operate the communication between the discharge chamber 132 and the crank chamber 121 by the refrigerant suction pressure and the crank chamber 121 in the cylinder bore (111). By varying the pressure difference with the gas pressure in the) acts to adjust the inclination angle of the swash plate (170).

또한, 상기 로터(160)와 사판(170) 사이의 구동축(150)상에는 사판(170)을 초기 위치로 복귀시키는 압축코일 스프링(155)이 설치된다.In addition, a compression coil spring 155 for returning the swash plate 170 to an initial position is installed on the drive shaft 150 between the rotor 160 and the swash plate 170.

그리고, 상기 허브(171)와 슬리브(165)의 사이에는 사판(170)의 최대경사각을 지지하여 에어컨의 OFF시 타격음을 감소할 수 있도록 최대경사각 지지수단(175)이 구비된다.In addition, between the hub 171 and the sleeve 165, the maximum inclination angle support means 175 is provided to support the maximum inclination angle of the swash plate 170 to reduce the impact sound when the air conditioner is OFF.

상기 최대경사각 지지수단(175)은 상기 허브(171)의 내측면과 상기 슬리브(165)의 외측면 중 어느 하나에 스토퍼(176)를 돌출형성하여 사판(170)의 최대경사각시 상대측에 접촉하도록 이루어진다.The maximum inclination angle supporting means 175 protrudes the stopper 176 on any one of the inner surface of the hub 171 and the outer surface of the sleeve 165 so as to contact the counterpart at the maximum inclination angle of the swash plate 170. Is done.

도면에서는 상기 허브(171)의 내측면에 스토퍼(176)를 형성하였지만, 상기 슬리브(165)의 외측면에 형성하여도 무방하다.Although the stopper 176 is formed on the inner side surface of the hub 171 in the drawing, the stopper 176 may be formed on the outer side surface of the sleeve 165.

또한, 상기 스토퍼(176)는 상기 허브(171)의 내측면에서 축방향 일측으로 편심되어 형성되는 것이 바람직하며, 도면에서는 허브(171)의 내측면 상부에 형성하였지만 하부에 형성할 수도 있다.In addition, the stopper 176 is preferably formed eccentrically to one side in the axial direction from the inner side of the hub 171, in the figure is formed on the upper side of the inner side of the hub 171, but may be formed at the bottom.

이러한 상기 스토퍼(176)는 그 단부가 상기 슬리브(165)의 외측면과 일정거리 이격되게 형성되며 사판(170)의 최대경사각시에만 슬리브(165)측에 접촉하면서 사판(170)의 최대경사각을 제한함과 동시에 지지하게 된다.The stopper 176 is formed so that the end thereof is spaced apart from the outer surface of the sleeve 165 by a predetermined distance, and contacts the sleeve 165 side only at the maximum inclination angle of the swash plate 170 to determine the maximum inclination angle of the swash plate 170. At the same time limiting and support.

이와 같이, 상기 사판(170)이 최대경사각으로 변위될 때, 상기 허브(171)는 슬리브(165)에 결합된 허브핀(166)을 중심으로 회전하게 되는데 이때 스토퍼(176)가 슬리브(165)의 외측면에 접촉함으로서 사판(170)의 최대경사각을 지지하게 되며, 따라서 상기 스토퍼(176)의 행정거리가 종래의 스토퍼(72:종래) 보다 짧기 때문에 스토퍼(72:종래)가 로터(60:종래)에 접촉하면서 발생하는 타격음 보다 더욱 감소하게 되는 것이다.As such, when the swash plate 170 is displaced to the maximum inclination angle, the hub 171 rotates about the hub pin 166 coupled to the sleeve 165, where the stopper 176 is the sleeve 165. The maximum angle of inclination of the swash plate 170 is supported by contacting the outer side surface of the swash plate 170. Therefore, since the stroke distance of the stopper 176 is shorter than that of the conventional stopper 72, the stopper 72 is conventional. It is to reduce even more than the hit sound generated when contacting).

한편, 상기 스토퍼(176)는 상기 허브(171)의 내측면에 일체로 형성될 수도 있고, 탈착 가능하게 결합될 수도 있다.On the other hand, the stopper 176 may be integrally formed on the inner surface of the hub 171, or may be detachably coupled.

상기한 바와 같이, 본 발명에 따르면, 상기 슬리브(165)의 외측면과 마주하는 허브(171)의 내측면에 스토퍼(176)를 돌출 형성함으로서, 상기 압축기(100)가 최대각 조건일 때, 상기 사판(170)의 경사각이 증가하게 됨과 동시에 상기 압축코일 스프링(155)을 점차 압축하게 되는데, 이때 상기 사판(170)이 최대경사각에 도 달하면 상기 허브(171)의 내측면에 형성된 스토퍼(176)가 상기 슬리브(165)의 외측면에 접촉하면서 사판(170)의 최대경사각을 지지함은 물론 사판(170)의 경사각이 더이상 커지지 않게 한다.As described above, according to the present invention, by forming a stopper 176 on the inner surface of the hub 171 facing the outer surface of the sleeve 165, when the compressor 100 is at the maximum angle, As the inclination angle of the swash plate 170 increases, the compression coil spring 155 is gradually compressed. At this time, when the swash plate 170 reaches the maximum inclination angle, the stopper 176 formed on the inner surface of the hub 171. In addition to supporting the maximum inclination angle of the swash plate 170 while contacting the outer surface of the sleeve 165, the inclination angle of the swash plate 170 is no longer increased.

한편, 상기 압축기(100)가 최소각 조건일때에는 상기 압축코일 스프링(155)의 복원력에 의해 상기 사판(170)의 경사각이 감소하게 된다.On the other hand, when the compressor 100 is a minimum angle condition, the inclination angle of the swash plate 170 is reduced by the restoring force of the compression coil spring 155.

상기한 본 발명에 따르면, 상기 허브의 내측면에 스토퍼를 돌출형성하여 사판의 최대경사각시 슬리브측에 접촉하도록 함으로서 사판의 최대경사각을 지지하기 위한 스토퍼의 행정거리가 짧아지게 되어 에어컨의 OFF시 타격음이 감소된다.According to the present invention, by forming a stopper on the inner surface of the hub so as to contact the sleeve side at the maximum inclination angle of the swash plate, the stroke length of the stopper for supporting the maximum inclination angle of the swash plate is shortened, the blow sound when the air conditioner OFF Is reduced.

Claims (2)

내부에 다수의 실린더보어(111)를 갖는 실린더블록(110);A cylinder block 110 having a plurality of cylinder bores 111 therein; 상기 실린더블록(110)의 전방에 장착되어 내부에 크랭크실(121)을 형성하는 전방하우징(120) 및 상기 실린더블록(110)의 후방에 장착되며 내부에 흡입실(131)과 토출실(132)을 갖는 후방하우징(130);The front housing 120 is mounted to the front of the cylinder block 110 to form a crank chamber 121 therein and the rear of the cylinder block 110 and the suction chamber 131 and the discharge chamber 132 therein. Rear housing (130); 상기 실린더블록(110)과 전방하우징(120)에 회전가능하게 설치되는 구동축(150);A drive shaft 150 rotatably installed on the cylinder block 110 and the front housing 120; 상기 크랭크실(121)의 내부에서 상기 구동축(150)에 결합되어 구동축(150)과 함께 회전하는 로터(160);A rotor 160 coupled to the drive shaft 150 in the crank chamber 121 and rotating together with the drive shaft 150; 상기 로터(160)의 힌지암(161)에 유동가능하게 연결됨과 아울러 상기 구동축(150)에 슬라이딩 가능하게 결합된 슬리브(165)에 회동가능하게 결합되는 허브(171) 및 상기 허브(171)에 결합되는 사판플레이트(172)로 구성되어 상기 크랭크실(121)의 압력 변화에 대응하여 경사각이 변화하는 사판(170);The hub 171 and the hub 171 rotatably coupled to the hinge arm 161 of the rotor 160 and rotatably coupled to the sleeve 165 slidably coupled to the drive shaft 150. A swash plate 170 configured to be coupled to a swash plate 172 to change an inclination angle in response to a pressure change of the crank chamber 121; 상기 로터(160)와 사판(170) 사이의 구동축(150)상에 설치되며 사판(170)을 초기위치로 복귀시키는 스프링(155)을 포함하는 가변용량형 사판식 압축기에 있어서,In the variable displacement swash plate type compressor comprising a spring 155 is installed on the drive shaft 150 between the rotor 160 and the swash plate 170 and returns the swash plate 170 to the initial position, 상기 허브(171)와 슬리브(165)의 사이에는 사판(170)의 최대경사각을 지지하여 에어컨 OFF시 타격음을 감소할 수 있도록 최대경사각 지지수단(175)이 구비되는 것을 특징으로 하는 가변용량형 사판식 압축기.Between the hub 171 and the sleeve 165, the variable inclination type swash plate, characterized in that the maximum inclination angle support means 175 is provided to support the maximum inclination angle of the swash plate 170 to reduce the impact sound when the air conditioner OFF Type compressor. 제 1 항에 있어서,The method of claim 1, 상기 최대경사각 지지수단(175)은 상기 허브(171)의 내측면과 상기 슬리브(165)의 외측면 중 어느 하나에 스토퍼(176)를 돌출형성하여 사판(170)의 최대경사각시 상대측에 접촉하도록 이루어진 것을 특징으로 하는 가변용량형 사판식 압축기.The maximum inclination angle supporting means 175 protrudes the stopper 176 on any one of the inner surface of the hub 171 and the outer surface of the sleeve 165 so as to contact the counterpart at the maximum inclination angle of the swash plate 170. Variable displacement swash plate compressor, characterized in that made.
KR1020050098999A 2005-10-20 2005-10-20 Variable capacity type swash plate type compressor KR101104282B1 (en)

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CN2006800332941A CN101278124B (en) 2005-10-20 2006-08-16 Variable capacity swash plate type compressor
US11/989,405 US20090148312A1 (en) 2005-10-20 2006-08-16 Variable Capacity Swash Plate Type Compressor
PCT/KR2006/003190 WO2007046580A1 (en) 2005-10-20 2006-08-16 Variable capacity swash plate type compressor

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US6416297B1 (en) 1998-10-02 2002-07-09 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Stopping means for preventing movement of the drive shaft of a variable displacement compressor
US6382927B1 (en) 1999-04-01 2002-05-07 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Valve plate assembly positioning structure for compressor
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