KR20120047529A - Check valve of compressor - Google Patents

Check valve of compressor Download PDF

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Publication number
KR20120047529A
KR20120047529A KR1020100109143A KR20100109143A KR20120047529A KR 20120047529 A KR20120047529 A KR 20120047529A KR 1020100109143 A KR1020100109143 A KR 1020100109143A KR 20100109143 A KR20100109143 A KR 20100109143A KR 20120047529 A KR20120047529 A KR 20120047529A
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KR
South Korea
Prior art keywords
valve
refrigerant
compressor
check valve
valve body
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KR1020100109143A
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Korean (ko)
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KR101175269B1 (en
Inventor
이건호
김기범
김성용
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학교법인 두원학원
주식회사 두원전자
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Priority to KR1020100109143A priority Critical patent/KR101175269B1/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
    • 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
    • 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
    • F04B39/1046—Combination of in- and outlet valve
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • 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
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/14—Geometry two-dimensional elliptical
    • F05B2250/141—Geometry two-dimensional elliptical circular
    • 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
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/19—Geometry two-dimensional machined; miscellaneous
    • F05B2250/192—Geometry two-dimensional machined; miscellaneous beveled
    • 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
    • Y10S251/00—Valves and valve actuation
    • 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)
  • Compressor (AREA)
  • Check Valves (AREA)

Abstract

PURPOSE: A check valve of a compressor is provided to prevent pressure loss, vibration, and noise due to the variation in the flow of refrigerant passing through the check valve because refrigerant inlet and outlet are arranged on the same line. CONSTITUTION: A check valve of a compressor comprises a valve cap(110), a valve housing(120), a valve body(130), and an urging unit(140). The valve cap has a refrigerant inlet(111). The valve housing has a refrigerant discharge path connected to the refrigerant inlet. The valve body controls the refrigerant flow in the refrigerant discharge path and the refrigerant inlet by moving between the valve cap and the valve housing. The urging unit is interposed between the valve body and the valve housing. The refrigerant inlet and the refrigerant discharge path form a straight flow path.

Description

압축기의 체크밸브{CHECK VALVE OF COMPRESSOR}CHECK VALVE OF COMPRESSOR

본 발명은 압축기의 체크밸브에 관한 것으로, 더욱 상세하게는 체크밸브를 통과한 냉매의 급격한 유로 변화로 인한 압력손실 및 진동?소음이 발생하는 것을 방지하는 압축기의 체크밸브에 관한 것이다.
The present invention relates to a check valve of a compressor, and more particularly to a check valve of the compressor to prevent the pressure loss and vibration and noise caused by the rapid flow path change of the refrigerant passing through the check valve.

자동차용 공조장치의 냉방 시스템에 포함되는 압축기는 벨트를 통해 엔진에 직접 연결되어 있기 때문에 회전수를 제어할 수 없다.Since the compressor included in the cooling system of the automotive air conditioner is directly connected to the engine through the belt, the rotation speed cannot be controlled.

따라서, 근래에는 엔진의 회전수에 의해 규제되는 경우 없이 냉방 능력을 얻기 위해 냉매의 토출량을 변화시킬 수 있는 용량가변형 압축기가 많이 사용되고 있다.Therefore, in recent years, a variable capacity compressor that can change the discharge amount of the refrigerant to obtain a cooling capacity without being regulated by the rotational speed of the engine has been used a lot.

용량가변형 압축기로는 사판식, 로터리식 및 스크롤식 등 다양한 종류가 개시되어 있다.Various types of variable displacement compressors are disclosed, such as swash plate type, rotary type and scroll type.

이 중 사판식 압축기는, 크랭크실 내에서 경사각이 가변되도록 설치된 사판이 회전축의 회전운동에 따라 회전하고, 상기 사판의 회전운동에 의해 피스톤이 왕복운동하는 방식으로 되어 있다. 이 경우, 상기 피스톤의 왕복운동에 의해 흡입실의 냉매가 실린더 내에 흡입되어 압축된 후 토출실로 배출되는데, 상기 크랭크실 내의 압력과 실린더 보어 내의 압력 차이에 따라 사판의 경사각이 변화하여 냉매의 토출량이 조절되게 된다.In the swash plate type compressor, the swash plate provided so that the inclination angle is variable in the crank chamber rotates according to the rotational motion of the rotating shaft, and the piston reciprocates by the rotational motion of the swash plate. In this case, the refrigerant in the suction chamber is sucked into the cylinder by the reciprocating motion of the piston, compressed, and then discharged into the discharge chamber. Will be controlled.

특히, 전자 솔레노이드식 용량제어밸브를 채택하여 통전에 의해 밸브를 개폐함으로써 크랭크실의 압력을 조정하고, 이를 통해 사판의 경사각을 조정하여 토출용량을 조절하는 것이 보통이다.In particular, it is common to adopt the solenoid type capacity control valve to adjust the pressure of the crankcase by opening and closing the valve by energization, and thereby adjusting the discharge capacity by adjusting the inclination angle of the swash plate.

이때, 용량제어밸브의 가동은, 검지된 엔진의 회전수, 차실 내외의 온도 또는 증발기 온도 등의 신호가 CPU 등을 내장하는 제어부에 의해 연산되고, 그 연산결과에 근거하여 전류가 용량제어밸브의 전자코일로 보내짐으로써 이루어진다.At this time, the operation of the capacity control valve is calculated by a control unit in which a signal such as the detected engine speed, the temperature inside or outside the vehicle, the evaporator temperature, or the like is incorporated by the CPU, and based on the result of the calculation, the current By sending it to an electromagnetic coil.

또한, 토출실과 연통된 토출구에는 체크밸브가 설치되어 압축기의 최소용량 운전시에 냉매의 역류를 방지한다.
In addition, a check valve is provided at the discharge port communicating with the discharge chamber to prevent the backflow of the refrigerant during the minimum capacity operation of the compressor.

이하, 도면을 참조하여 종래기술에 따른 체크밸브의 구조에 관하여 설명한다.Hereinafter, a structure of a check valve according to the related art will be described with reference to the drawings.

도 1은 종래기술에 따른 용량가변형 압축기의 체크밸브를 도시한 종단면도이다.1 is a longitudinal sectional view showing a check valve of a variable displacement compressor according to the prior art.

도 1에 도시된 바와 같이, 종래기술에 따른 체크밸브(1)는, 토출냉매가 유입되는 냉매 유입구(2a)와 토출냉매가 배출되는 냉매 배출구(2b)가 각각 형성되는 밸브하우징(2)과, 상기 밸브하우징(2)의 내부를 왕복 운동하며 상기 냉매 유입구(2a)와 냉매 배출구(2b)를 개폐하는 밸브체(3)와, 상기 밸브하우징(2)의 개방된 단부를 덮는 커버(4) 및 상기 커버(4)와 밸브체(3) 사이에 개재되는 스프링(5)으로 구성된다.As shown in FIG. 1, the check valve 1 according to the related art includes a valve housing 2 in which a refrigerant inlet 2a through which discharged refrigerant is introduced and a refrigerant outlet 2b through which discharged refrigerant is discharged are respectively formed. And a valve body 3 for reciprocating the inside of the valve housing 2 to open and close the refrigerant inlet 2a and the refrigerant outlet 2b, and a cover 4 covering the open end of the valve housing 2. And a spring 5 interposed between the cover 4 and the valve body 3.

이와 같이 구성되는 체크밸브(1)는 압축기의 토출구에 설치되어 최소용량 운전시(저압토출시) 냉매의 역류를 방지하게 된다.The check valve 1 configured as described above is installed at the discharge port of the compressor to prevent the reverse flow of the refrigerant during the minimum capacity operation (at low pressure discharge).

그러나, 종래기술의 체크밸브(1)에 따르면 상기 냉매 유입구(2a)와 냉매배출구(2b)를 거치며 냉매의 유로(운동)방향이 급격하게 변경되어 압력손실 및 진동?소음이 발생하였다. However, according to the conventional check valve (1) through the refrigerant inlet (2a) and the refrigerant discharge port (2b), the direction of the flow path (movement) of the refrigerant is rapidly changed to generate pressure loss and vibration and noise.

즉, 냉매의 유로(운동)방향이 밸브체(3)의 수압면에 대해 수직방향에서 수평 방향으로 변환되어 토출 냉매의 압력손실과 유동손실이 발생하여 압축기의 압축효율이 저하된다.That is, the flow path (movement) direction of the coolant is converted from the vertical direction to the horizontal direction with respect to the pressure receiving surface of the valve body 3 to generate a pressure loss and a flow loss of the discharged refrigerant, thereby reducing the compression efficiency of the compressor.

또한, 토출압(Pd)에 의해 밸브체(3)가 냉매 유입구(2a)와 냉매 배출구(2b)를 개방하고(도 1a), 그로 인해 토출압(Pd)이 하강하여 차압이 발생하게 되면 스프링(5)의 탄성력에 의해 밸브체(3)가 폐쇄하는 방향으로 이동하여 밸브체(3)와 밸브하우징(2)의 대향면이 맞부딪치며 타격음이 발생하는 문제점이 있었다.
In addition, the valve body 3 opens the refrigerant inlet port 2a and the refrigerant outlet port 2b by the discharge pressure Pd (FIG. 1A), and as a result, the discharge pressure Pd drops and springs are generated. Due to the elastic force of (5), the valve body 3 is moved in the direction of closing, so that the opposing surfaces of the valve body 3 and the valve housing 2 collide with each other, causing a hitting sound.

본 발명은 전술한 종래의 제반 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 체크밸브를 통과한 냉매의 급격한 유로 변화로 인한 압력손실 및 진동?소음이 발생하는 것을 방지하는 압축기의 체크밸브를 제공하는데 있다.The present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is a check valve of the compressor to prevent the pressure loss and vibration and noise caused by the sudden flow path change of the refrigerant passing through the check valve To provide.

또한, 본 발명의 다른 목적은 토출압의 차압에 의해 밸브의 개폐가 반복될 때에도 타격음이 발생하지 않는 압축기의 체크밸브를 제공하는데 있다.
In addition, another object of the present invention is to provide a check valve of a compressor that does not generate a hitting sound even when the opening and closing of the valve is repeated by the differential pressure of the discharge pressure.

상기와 같은 목적을 달성하기 위한 본 발명의 압축기의 체크밸브는, 냉매유입구(111)가 형성되는 밸브 캡(110); 상기 냉매유입구(111)와 연통되는 냉매배출유로(121)가 형성되는 밸브하우징(120); 상기 밸브 캡(110)과 밸브하우징(1200 사이를 이동하며 상기 냉매유입구(111)와 냉매배출유로(121)의 냉매 흐름을 제어하는 밸브체(130); 및 상기 밸브체(130)와 밸브하우징(120) 사이에 개재되는 가세스단(140)을 포함하되, 상기 냉매유입구(111)와 냉매배출유로(121)는 직선유로를 형성하는 것을 특징으로 한다.The check valve of the compressor of the present invention for achieving the above object, the valve cap 110, the refrigerant inlet 111 is formed; A valve housing (120) in which a refrigerant discharge passage (121) communicating with the refrigerant inlet (111) is formed; A valve body 130 moving between the valve cap 110 and the valve housing 1200 to control the flow of the refrigerant in the refrigerant inlet 111 and the refrigerant discharge passage 121; and the valve body and the valve housing It includes a access stage 140 interposed between the 120, the refrigerant inlet 111 and the refrigerant discharge passage 121 is characterized in that to form a straight flow path.

또한, 상기 밸브 캡(110)의 내주면과 상기 밸브 캡(110)의 내주면과 대향하는 상기 밸브하우징(120)의 외주면에는 각각 경사면(112,122)이 형성되며, 상기 밸브 캡(110)과 밸브하우징(120)의 경사면(112,122) 사이에는 밸브체(130)가 경사 이동하도록 설치되는 것이 바람직하다.In addition, inclined surfaces 112 and 122 are formed on the inner circumferential surface of the valve cap 110 and the outer circumferential surface of the valve housing 120 facing the inner circumferential surface of the valve cap 110, respectively, and the valve cap 110 and the valve housing ( It is preferable that the valve body 130 is installed between the inclined surfaces 112 and 122 of the 120 to incline.

그리고, 상기 밸브체(130)는, 상기 냉매유입구(111)를 기준으로 한 쌍으로 분할되게 형성되는 것이 바람직하다.In addition, the valve body 130 is preferably formed to be divided into a pair based on the refrigerant inlet 111.

한편, 상기 밸브체(130)는, 상기 냉매유입구(111)의 중심을 기준으로 한 쌍으로 분할되게 형성되는 것이 바람직하다.On the other hand, the valve body 130 is preferably formed to be divided into a pair based on the center of the refrigerant inlet 111.

또한, 상기 분할된 밸브체(130)가 맞닿는 면은 평면인 것이 바람직하다.In addition, the surface where the divided valve body 130 abuts is preferably flat.

그리고, 상기 밸브하우징(120)에는 가세수단(140)이 삽입되는 수용부(123)가 형성되는 것이 바람직하다.In addition, the valve housing 120 is preferably formed with a receiving portion 123 into which the biasing means 140 is inserted.

한편, 냉매의 유동방향에서 바라볼 때, 상기 수용부(123)는 원형의 링 형상으로 이루어진 것이 바람직하다.On the other hand, when viewed from the flow direction of the refrigerant, the receiving portion 123 is preferably made of a circular ring shape.

또한, 상기 가세수단(140)은 냉매의 유동방향으로 연장 설치되며, 상기 가세수단(140)과 맞닿는 밸브체(130)의 면은 상기 유동방향에 대하여 수직으로 형성된 평면인 것이 바람직하다.
In addition, the biasing means 140 is installed extending in the flow direction of the refrigerant, the surface of the valve body 130 in contact with the biasing means 140 is preferably a plane formed perpendicular to the flow direction.

본 발명에 따른 압축기의 체크밸브에 따르면, 냉매유입구와 냉매배출구를 동일선상(직선유로)에 배치하여 체크밸브를 통과한 냉매의 급격한 유로 변화로 인한 압력손실 및 진동?소음이 발생하는 것을 방지한다.According to the check valve of the compressor according to the present invention, the coolant inlet and the coolant outlet are arranged in the same line (linear flow path) to prevent the occurrence of pressure loss and vibration and noise due to the rapid flow path change of the refrigerant passing through the check valve. .

즉, 냉매의 유로(운동)방향이 변화되지 않으므로 토출 냉매의 압력손실과 유동손실의 발생을 방지하여 압축기의 압축효율을 향상시킨다.That is, since the direction of the flow path (movement) of the refrigerant is not changed, the pressure loss and the flow loss of the discharged refrigerant are prevented, thereby improving the compression efficiency of the compressor.

또한, 밸브캡과 밸브하우징의 대향면에 각각 형성된 경사면을 따라 밸브체가 이동함에 따라 토출압의 차압에 의해 밸브체의 개폐가 반복될 때에도 타격음이 발생하는 것을 방지할 수 있다.
In addition, as the valve body moves along the inclined surfaces respectively formed on the opposing surfaces of the valve cap and the valve housing, it is possible to prevent the impact sound from occurring even when the valve body is repeatedly opened and closed by the differential pressure of the discharge pressure.

도 1은 종래기술에 따른 용량가변형 압축기의 체크밸브를 도시한 종면도이다.
도 2는 본 발명에 따른 압축기의 구조를 나타내는 종단면도이다.
도 3은 본 발명에 따른 체크밸브를 분해 도시한 사시도이다.
도 4는 본 발명에 따른 체크밸브의 구조를 나타내는 종단면도이다.
도 5는 본 발명에 따른 체크밸브의 작동상태를 도시한 종단면도이다.1 is a longitudinal sectional view showing a check valve of a variable displacement compressor according to the prior art.
2 is a longitudinal sectional view showing the structure of a compressor according to the present invention.
3 is an exploded perspective view showing a check valve according to the present invention.
Figure 4 is a longitudinal sectional view showing the structure of a check valve according to the present invention.
5 is a longitudinal sectional view showing an operating state of a check valve according to the present invention.

이하, 본 발명의 바람직한 실시 예를 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 압축기의 구조를 나타내는 종단면도이고, 도 3은 본 발명에 따른 체크밸브를 분해 도시한 사시도이며, 도 4는 본 발명에 따른 체크밸브의 구조를 나타내는 종단면도이고, 도 5는 본 발명에 따른 체크밸브의 작동상태를 도시한 종단면도이다.Figure 2 is a longitudinal sectional view showing a structure of a compressor according to the present invention, Figure 3 is an exploded perspective view showing a check valve according to the present invention, Figure 4 is a longitudinal sectional view showing a structure of a check valve according to the present invention, 5 is a longitudinal sectional view showing an operating state of a check valve according to the present invention.

먼저, 본 발명에 따른 체크밸브가 설치된 사판식 압축기의 구조를 개략적으로 설명하도록 한다.First, the structure of the swash plate type compressor installed with a check valve according to the present invention will be described schematically.

도 2 내지 도 5에 도시한 바와 같이, 사판식 압축기(C)는, 내주면에 길이방향을 따라 평행하게 형성된 다수의 실린더 보어(12)를 가지는 실린더 블럭(10)과, 상기 실린더 블럭(10)의 전방에 밀폐 결합된 전방 하우징(16)과, 상기 실린더 블럭(10)의 후방에 밸브 플레이트(20)를 개재하여 밀폐 결합된 후방 하우징(18)을 포함한다.2 to 5, the swash plate type compressor C includes a cylinder block 10 having a plurality of cylinder bores 12 formed on an inner circumferential surface in parallel in a longitudinal direction, and the cylinder block 10. The front housing 16 is hermetically coupled to the front of the, and the rear housing 18 is hermetically coupled via a valve plate 20 to the rear of the cylinder block 10.

상기 전방 하우징(16)의 안쪽에는 크랭크실(86)이 마련되며, 전방 하우징(16)의 중심 부근에는 구동축(44)의 일단이 회전가능하게 지지되는 한편, 상기 구동축(44)의 타단은 상기 크랭크실(86)을 통과하여 실린더 블럭(10)에 설치된 베어링을 매개로 하여 지지된다.The crank chamber 86 is provided inside the front housing 16, and one end of the drive shaft 44 is rotatably supported near the center of the front housing 16, while the other end of the drive shaft 44 is Passed through the crank chamber 86 is supported via a bearing provided in the cylinder block 10.

또한, 상기 크랭크실(86) 내에는 구동축(44) 둘레에 러그 플레이트(54)와 사판(50)이 설치되어 있다.In the crank chamber 86, the lug plate 54 and the swash plate 50 are provided around the drive shaft 44.

상기 러그 플레이트(54)에는, 중앙부에 가이드홀(64)이 각각 직선 천공된 한쌍의 동력전달용 지지 암(62)이 일면에 일체로 돌출되게 형성되어 있고, 상기 사판(50)의 일면에는 볼(66)이 형성되어 있어, 상기 러그 플레이트(54)가 회전함에 따라 상기 사판(50)의 볼(66)이 러그 플레이트(54)의 가이드홀(64) 내에서 슬라이딩 이동하면서 사판(50)의 경사각이 가변되게 되어 있다.In the lug plate 54, a pair of power transmission support arms 62 each having a linearly perforated guide hole 64 formed at the center thereof are formed to protrude integrally on one surface, and one surface of the swash plate 50 has a ball. As the lug plate 54 rotates, the ball 66 of the swash plate 50 slides in the guide hole 64 of the lug plate 54 so that the swash plate 50 can be rotated. The inclination angle is variable.

또한, 상기 사판(50)의 외주면은 슈(76)를 개재하여 각 피스톤(14)에 미끄럼이동이 가능하게 끼워진다.In addition, the outer circumferential surface of the swash plate 50 is fitted to the piston 14 so as to be able to slide through the shoe 76.

따라서, 상기 사판(50)이 경사된 상태에서 회전함에 따라, 그 외주면에 슈(76)를 개재하여 끼워진 피스톤(14)들은 상기 실린더 블럭(10)의 각 실린더 보어(12) 내에서 왕복운동하게 된다.Accordingly, as the swash plate 50 rotates in an inclined state, the pistons 14 fitted to the outer peripheral surface of the swash plate 50 via the shoe 76 reciprocate in the respective cylinder bores 12 of the cylinder block 10 do.

그리고, 상기 후방 하우징(18)에는 흡입실(22)과 토출실(24)이 각각 형성되어 있고, 후방 하우징(18)과 실린더 블럭(10) 사이에 개재되는 밸브 플레이트(20)에는 각 실린더 보어(12)에 대응하는 곳에 흡입밸브(32)와 토출밸브(36)가 각각 형성되어 있다.In addition, a suction chamber 22 and a discharge chamber 24 are formed in the rear housing 18, and each cylinder bore is provided in the valve plate 20 interposed between the rear housing 18 and the cylinder block 10. The intake valve 32 and the discharge valve 36 are formed in the place corresponding to (12), respectively.

상기 피스톤(14)의 왕복운동에 의해 흡입실(22)의 냉매가 실린더 보어(12) 내에 흡입되어 압축된 후 토출실(24)로 배출되는데, 상기 크랭크실(86) 내의 압력과 실린더보어(12)의 압력 차이에 따라 사판(50)의 경사각이 변화하여 냉매의 토출량이 조절되는데, 이는 통전에 의해 밸브를 개폐함으로써 크랭크실(86)의 압력을 조정하고, 이를 통해 사판(50)의 경사각을 조정하여 토출용량을 조절하는 용량제어밸브(200)에 의해 구현되는 것이 보통이다.By the reciprocating motion of the piston 14, the refrigerant in the suction chamber 22 is sucked into the cylinder bore 12, compressed and discharged to the discharge chamber 24, the pressure in the crank chamber 86 and the cylinder bore ( According to the pressure difference of 12), the inclination angle of the swash plate 50 is changed to adjust the discharge amount of the refrigerant, which adjusts the pressure of the crank chamber 86 by opening and closing the valve by energizing, and thereby the inclination angle of the swash plate 50. It is usually implemented by the capacity control valve 200 to adjust the discharge capacity by adjusting the.

아울러, 상기 후방 하우징(18)에는 토출구실(24)과 연통된 토출구(25)가 형성되며, 상기 토출구(25)에는 설정차압 이상에서 압축된 냉매를 외부로 배출시킴과 동시에 배출된 냉매가 역류되는 것을 방지하는 체크밸브(100)가 설치된다.In addition, a discharge port 25 communicating with the discharge port chamber 24 is formed in the rear housing 18. The discharge port 25 discharges the refrigerant compressed outside the set differential pressure to the outside and the discharged refrigerant flows backward. The check valve 100 is prevented from being installed.

전술한 압축기는 본원 발명에 따른 체크밸브(100)가 설치되는 하나의 예에 불과하며, 그 밖의 다양한 형식의 압축기에 모두 적용 가능하다.
The compressor described above is just one example in which the check valve 100 according to the present invention is installed, and is applicable to all other various types of compressors.

이하, 도면을 참조하여 본 발명에 따른 체크밸브(100)를 설명한다.Hereinafter, a check valve 100 according to the present invention will be described with reference to the drawings.

도시한 바와 같이, 본 발명에 따른 체크밸브(100)는, 토출실(24)로부터 토출된 냉매를 다음 냉각 사이클로 보내주는 작용을 반복적으로 수행하는 것으로, 크게 밸브 캡(110)과, 상기 밸브 캡(110)의 개방된 단부를 폐쇄하도록 설치되는 밸브하우징(120)과, 상기 밸브 캡(110)과 밸브하우징(120) 사이에 설치되는 밸브체(130) 및 상기 밸브체(130)에 탄성력을 가하는 가세수단(140)으로 구성된다.As shown, the check valve 100 according to the present invention, by repeatedly performing the action of sending the refrigerant discharged from the discharge chamber 24 to the next cooling cycle, largely the valve cap 110 and the valve cap An elastic force is applied to the valve housing 120 installed to close the open end of the 110, the valve body 130 installed between the valve cap 110 and the valve housing 120, and the valve body 130. The addition is constituted by the biasing means 140.

먼저, 상기 밸브 캡(110)의 일측 중심으로 냉매유입구(111)가 형성되며, 타측으로 상기 밸브하우징(120)이 설치되도록 개방되게 형성된다.First, the refrigerant inlet 111 is formed at the center of one side of the valve cap 110, and the valve housing 120 is opened to be installed at the other side.

또한, 상기 밸브하우징(120)에는 상기 냉매유입구(111)와 연통되는 냉매배출유로(121)가 상기 밸브하우징(120)의 길이방향을 따라 관통형성된다.In addition, the valve housing 120 has a refrigerant discharge passage 121 in communication with the refrigerant inlet 111 is formed through the longitudinal direction of the valve housing 120.

그리고, 상기 밸브체(130)는 상기 밸브 캡(110)과 밸브하우징(120) 사이를 이동하며 상기 냉매유입구(111)와 냉매배출유로(121)의 냉매 흐름을 제어하게 된다. 구체적으로 상기 밸브체(130)는 냉매유입구(121)를 토출 냉매의 압력에 의해 개방 또는 폐쇄하게 된다.The valve body 130 moves between the valve cap 110 and the valve housing 120 to control the refrigerant flow of the refrigerant inlet 111 and the refrigerant discharge passage 121. Specifically, the valve body 130 opens or closes the refrigerant inlet 121 by the pressure of the discharged refrigerant.

한편, 상기 냉매유입구(111)와 냉매배출유로(121)는 직선유로를 형성하도록 동일선상에 형성된다. 즉 상기 밸브체(130)가 개방시에 직선유로를 형성하는 냉매유입구(111)와 냉매배출유로(121)에 의해 본 발명의 체크밸브(100)를 통과한 냉매의 급격한 유로 변화를 방지하여 압력손실 및 진동?소음이 발생하는 것을 억제한다.On the other hand, the refrigerant inlet 111 and the refrigerant discharge passage 121 is formed on the same line to form a straight passage. That is, when the valve body 130 is opened, the refrigerant inlet 111 and the refrigerant discharge passage 121, which form a straight flow path, prevent a sudden change in the flow path of the refrigerant passing through the check valve 100 of the present invention. It suppresses generation of loss, vibration and noise.

즉, 냉매의 유로(운동)방향이 변화되지 않으므로 토출 냉매의 압력손실과 유동손실의 발생을 방지하여 압축기의 압축효율을 향상시킨다.That is, since the direction of the flow path (movement) of the refrigerant is not changed, the pressure loss and the flow loss of the discharged refrigerant are prevented, thereby improving the compression efficiency of the compressor.

또한, 상기 밸브 캡(110)의 내주면과 상기 밸브 캡(110)의 내주면과 대향하는 상기 밸브하우징(120)의 외주면에는 각각 경사면(112,122)이 형성되며, 상기 밸브 캡(110)과 밸브하우징(120)의 경사면(112,122) 사이에는 밸브체(130)가 경사 이동하도록 설치된다.In addition, inclined surfaces 112 and 122 are formed on the inner circumferential surface of the valve cap 110 and the outer circumferential surface of the valve housing 120 facing the inner circumferential surface of the valve cap 110, respectively, and the valve cap 110 and the valve housing ( The valve body 130 is installed between the inclined surfaces 112 and 122 of the 120 to incline.

이 경우, 상기 밸브 캡(110)과 밸브하우징(120)의 대향면에 각각 형성된 경사면(112,122)을 따라 상기 밸브체(130)가 경사 이동함에 따라 토출압의 차압에 의해 밸브체(130)의 개폐가 반복될 때에도 상기 밸브체(130)와 밸브캡(110)의 부딪치지 않아 타격음이 발생하는 것을 방지할 수 있다.In this case, as the valve body 130 inclines along the inclined surfaces 112 and 122 formed on the opposite surfaces of the valve cap 110 and the valve housing 120, Even when the opening and closing is repeated, the hitting of the valve body 130 and the valve cap 110 may be prevented from occurring.

그리고, 상기 밸브체(130)는 냉매유입구(111)를 기준으로 한 쌍으로 분할되게 형성된다. 즉, 도 5와 같이 한 쌍의 밸브체(130)는 각각 반대 방향으로 경사이동하여 상기 냉매유입구(111)와 냉매배출유로(121)의 냉매 흐름을 제어하게 된다.In addition, the valve body 130 is formed to be divided into a pair based on the refrigerant inlet 111. That is, as shown in FIG. 5, the pair of valve bodies 130 are tilted in opposite directions to control the flow of the refrigerant in the refrigerant inlet 111 and the refrigerant discharge passage 121.

이외에도, 상기 밸브체(130)는 상기 냉매유입구(111)의 중심을 기준으로 한 쌍으로 분할되게 형성될 수도 있다.In addition, the valve body 130 may be formed to be divided into a pair based on the center of the refrigerant inlet 111.

또한, 상기 분할된 밸브체(130)가 맞닿는 면은 평면인 것이 바람직하다.In addition, the surface where the divided valve body 130 abuts is preferably flat.

더욱이, 상기 밸브하우징(120)에는 가세수단(140)이 삽입되는 수용부(123)가 형성된다.In addition, the valve housing 120 is formed with a receiving portion 123 into which the biasing means 140 is inserted.

구체적으로, 상기 수용부(123)는 냉매의 유동방향에서 바라볼 때 원형의 링 형상으로 이루어진다.Specifically, the receiving portion 123 is formed in a circular ring shape when viewed from the flow direction of the refrigerant.

그리고, 상기 가세수단(140)은 냉매의 유동방향으로 연장 설치되며, 상기 가세수단(140)과 맞닿는 밸브체(130)의 면은 상기 유동방향에 대하여 수직으로 형성된 평면인 것이 바람직하다.In addition, the biasing means 140 is installed extending in the flow direction of the refrigerant, the surface of the valve body 130 in contact with the biasing means 140 is preferably a plane formed perpendicular to the flow direction.

즉, 상기 가세수단(140)은 일단이 밸브체(130)를 가압하고 타단은 밸브하우징(120) 수용부(123)에 끼움 고정된다.That is, one end of the biasing means 140 pressurizes the valve body 130 and the other end is fitted into the valve housing 120 accommodating part 123.

이러한, 상기 가세수단(140)은 그 탄성계수의 크기에 따라 밸브체(130)가 개폐되는 압력차를 조절할 수 있다.
This, the biasing means 140 may adjust the pressure difference between the opening and closing the valve body 130 according to the size of the elastic modulus.

이상, 본 발명의 바람직한 실시 예에 대하여 상세히 설명하였으나, 본 발명의 기술적 범위는 전술한 실시 예에 한정되지 않고 특허청구범위에 의하여 해석되어야 할 것이다. 이때, 이 기술분야에서 통상의 지식을 습득한 자라면, 본 발명의 범위에서 벗어나지 않으면서도 많은 수정과 변형이 가능함을 고려해야 할 것이다.As mentioned above, although preferred embodiment of this invention was described in detail, the technical scope of this invention is not limited to the above-mentioned embodiment, It should be interpreted by the claim. It will be understood by those skilled in the art that many modifications and variations are possible without departing from the scope of the present invention.

예를 들어, 전술한 설명에서는 본 발명의 체크밸브가 압축기의 토출 측에 설치된 것으로 설명하였지만, 이를 특별히 한정하는 것은 아니며 압축기의 흡입 측에도 동일하게 적용할 수 있다.
For example, in the above description, the check valve of the present invention has been described as being installed on the discharge side of the compressor, but the present invention is not particularly limited, and the same may be applied to the suction side of the compressor.

100 - 체크밸브 110 - 밸브 캡
120 - 밸브하우징 130 - 밸브체
140 - 가세수단100-check valve 110-valve cap
120-valve housing 130-valve body
140-taxable means

Claims (8)

냉매유입구(111)가 형성되는 밸브 캡(110);
상기 냉매유입구(111)와 연통되는 냉매배출유로(121)가 형성되는 밸브하우징(120);
상기 밸브 캡(110)과 밸브하우징(1200 사이를 이동하며 상기 냉매유입구(111)와 냉매배출유로(121)의 냉매 흐름을 제어하는 밸브체(130); 및
상기 밸브체(130)와 밸브하우징(120) 사이에 개재되는 가세수단(140)을 포함하되,
상기 냉매유입구(111)와 냉매배출유로(121)는 직선유로를 형성하는 것을 특징으로 하는 압축기의 체크밸브.
A valve cap 110 in which a coolant inlet 111 is formed;
A valve housing (120) in which a refrigerant discharge passage (121) communicating with the refrigerant inlet (111) is formed;
A valve body 130 moving between the valve cap 110 and the valve housing 1200 and controlling the flow of the refrigerant in the refrigerant inlet 111 and the refrigerant discharge passage 121; and
It includes a biasing means 140 which is interposed between the valve body 130 and the valve housing 120,
The refrigerant inlet 111 and the refrigerant discharge passage 121 is a check valve of the compressor, characterized in that to form a straight flow path.
제 1항에 있어서,
상기 밸브 캡(110)의 내주면과 상기 밸브 캡(110)의 내주면과 대향하는 상기 밸브하우징(120)의 외주면에는 각각 경사면(112,122)이 형성되며, 상기 밸브 캡(110)과 밸브하우징(120)의 경사면(112,122) 사이에는 밸브체(130)가 경사 이동하도록 설치되는 것을 특징으로 하는 압축기의 체크밸브.
The method of claim 1,
Inclined surfaces 112 and 122 are formed on the outer circumferential surface of the valve housing 120 facing the inner circumferential surface of the valve cap 110 and the inner circumferential surface of the valve cap 110, respectively, and the valve cap 110 and the valve housing 120 are formed. The check valve of the compressor, characterized in that the valve body 130 is installed between the inclined surfaces (112, 122) of the inclined movement.
제 2항에 있어서,
상기 밸브체(130)는,
상기 냉매유입구(111)를 기준으로 한 쌍으로 분할되게 형성되는 것을 특징으로 하는 압축기의 체크밸브.
The method of claim 2,
The valve body 130,
The check valve of the compressor, characterized in that it is formed to be divided into a pair based on the refrigerant inlet (111).
제3항에 있어서,
상기 밸브체(130)는,
상기 냉매유입구(111)의 중심을 기준으로 한 쌍으로 분할되게 형성되는 것을 특징으로 하는 압축기의 체크밸브.
The method of claim 3,
The valve body 130,
The check valve of the compressor, characterized in that formed to be divided into a pair based on the center of the refrigerant inlet (111).
제 4항에 있어서,
상기 분할된 밸브체(130)가 맞닿는 면은 평면인 것을 특징으로 하는 압축기의 체크밸브.
The method of claim 4, wherein
The check valve of the compressor, characterized in that the contact surface of the divided valve body 130 is flat.
제 1항 내지 제 5항 중 어느 한 항에 있어서,
상기 밸브하우징(120)에는 가세수단(140)이 삽입되는 수용부(123)가 형성되는 것을 특징으로 하는 압축기의 체크밸브.
The method according to any one of claims 1 to 5,
The valve housing 120 is a check valve of the compressor, characterized in that the receiving portion 123 is inserted into the biasing means 140 is formed.
제 6항에 있어서,
냉매의 유동방향에서 바라볼 때, 상기 수용부(123)는 원형의 링 형상으로 이루어진 것을 특징으로 하는 압축기의 체크밸브.
The method of claim 6,
When viewed from the flow direction of the refrigerant, the receiving portion 123 is a check valve of the compressor, characterized in that formed in a circular ring shape.
제 6항에 있어서,
상기 가세수단(140)은 냉매의 유동방향으로 연장 설치되며, 상기 가세수단은(140)과 맞닿는 밸브체(130)의 면은 상기 유동방향에 대하여 수직으로 형성된 평면인 것을 특징으로 하는 압축기의 체크밸브.
The method of claim 6,
The biasing means 140 is installed extending in the flow direction of the refrigerant, the check means of the compressor, characterized in that the surface of the valve body 130 in contact with the 140 is a plane formed perpendicular to the flow direction. valve.
KR1020100109143A 2010-11-04 2010-11-04 Check valve of compressor KR101175269B1 (en)

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CN107143480A (en) * 2017-06-18 2017-09-08 苏州欧圣电气工业有限公司 A kind of cleaning machine
CN107701388A (en) * 2017-06-18 2018-02-16 苏州欧圣电气股份有限公司 A kind of plunger pump pump cover, plunger pump and cleaning machine
CN107143480B (en) * 2017-06-18 2019-11-08 苏州欧圣电气股份有限公司 A kind of cleaning machine
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