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KR100266597B1 - Refrigerant Gas Suction Structure of Compressor - Google Patents

Refrigerant Gas Suction Structure of Compressor Download PDF

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Publication number
KR100266597B1
KR100266597B1 KR1019970077650A KR19970077650A KR100266597B1 KR 100266597 B1 KR100266597 B1 KR 100266597B1 KR 1019970077650 A KR1019970077650 A KR 1019970077650A KR 19970077650 A KR19970077650 A KR 19970077650A KR 100266597 B1 KR100266597 B1 KR 100266597B1
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South Korea
Prior art keywords
suction
refrigerant gas
cylinder
compressor
piston
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KR19990057587A (en
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이인섭
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구자홍
엘지전자주식회사
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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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • 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
    • F04B39/0005—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 adaptations of 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
    • 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
    • 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
    • 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
    • Y10S417/902—Hermetically sealed motor pump unit

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

본 발명은 압축기의 냉매가스 흡입구조에 관한 것으로, 종래에는 구동모터의 구동력에 의해 피스톤이 움직이면서 냉매가스가 피스톤의 내부에 형성된 흡입유로 및 이를 개폐하는 흡입밸브에 의해 안내되어 실린더내로 흡입되는 과정에서 흡입유로 내로 유입된 냉매가스의 일부가 역류하여 흡입유로로 유입되는 냉매가스와 충돌하여 흡입 손실을 발생시키게 됨으로써 냉매가스의 흡입효율을 저하시키는 문제점이 있었는 바, 본 발명은 피스톤의 내부에 형성되어 실린더내로 냉매가스가 흡입되도록 안내하는 흡입유로에 냉매가스의 역류를 방지하는 역류 방지턱을 형성하여 흡입유로로 유입되는 냉매가스가 역류하여 충돌하는 것을 방지함으로써 냉매가스가 실린더내로 흡입되는 것을 원활하도록 하여 냉매가스의 흡입효율을 높일 수 있도록 한 것이다.The present invention relates to a refrigerant gas suction structure of a compressor. In the related art, while a piston is moved by a driving force of a driving motor, the refrigerant gas is guided by a suction flow path formed inside the piston and a suction valve that opens and closes the suction gas to be sucked into the cylinder. Part of the refrigerant gas introduced into the suction flow path is reversed and collides with the refrigerant gas flowing into the suction flow path, causing suction loss, thereby reducing the suction efficiency of the refrigerant gas. By forming a backflow prevention barrier to prevent the backflow of the refrigerant gas in the suction flow passage for guiding the refrigerant gas into the cylinder to prevent the refrigerant gas flowing into the cylinder flows back to collide with the refrigerant flow into the cylinder smoothly To increase the refrigerant gas suction efficiency .

Description

압축기의 냉매가스 흡입구조Refrigerant Gas Suction Structure of Compressor

본 발명은 압축기에 관한 것으로, 특히 실린더내부로 흡입되는 냉매가스의 흡입 유동을 원활하게 하여 냉매가스의 흡입 손실을 감소시킬 수 있도록 한 압축기의 냉매 가스 흡입구조에 관한 것이다.The present invention relates to a compressor, and more particularly, to a refrigerant gas suction structure of a compressor capable of reducing the suction loss of the refrigerant gas by smoothing the suction flow of the refrigerant gas sucked into the cylinder.

일반적으로 냉동사이클장치를 구성하는 압축기는 증발기에서 유입되는 냉매를 압축시켜 고온고압의 상태로 토출시키게 된다.In general, the compressor constituting the refrigeration cycle device is to compress the refrigerant flowing from the evaporator to be discharged in a state of high temperature and high pressure.

상기 압축기의 일예로, 도 1에 도시한 바와 같이, 압축기는 소정의 내부 공간을 갖도록 형성된 밀폐용기(1)와, 상기 밀폐용기(1)의 내부 중간에 설치되며 소정의 내부공간을 갖도록 형성된 인너케이스(2)와, 상기 인너케이스(2)의 내측에 결합되는 구동모터(M)와, 상기 구동모터(M)의 내측고정자(3)와 결합되는 실린더(4)와, 상기 인너케이스(2)의 일측에 복개,결합됨과 더불어 상기 실린더(4)의 일측이 관통,결합되는 커버플레이트(5)와, 상기 실린더(4)내에 왕복운동할 수 있도록 결합되는 피스톤(6)과, 일측이 상기 구동모터를 구성하는 마그네트(7)와 결합되고 타측이 상기 피스톤(6)의 일측에 결합되어 구동모터(M)의 움직임을 피스톤(6)에 전달하는 마그네트 패들(8)과, 상기 마그네트 패들(8)의 내측면과 구동모터(M)의 내측고정자(3)측면사이에 지지되어 피스톤(6)의 움직임을 탄성적으로 지지하는 내측스프링(9)과, 상기 인너케이스(2)의 타측에 복개,결합되는 커버(10)와, 상기 마그네트 패들(8)의 외측면과 상기 커버(10)의 내측면사이에 지지되어 상기 피스톤(6)의 움직임을 지지함과 더불어 운동에너지를 저장하는 역할을 하는 외측 스프링(11)과, 상기 실린더(4)내로 냉매가스가 흡입되도록 함과 더불어 압축된 냉매가스가 토출되도록 하는 밸브조립체를 포함하여 구성된다.As an example of the compressor, as shown in Figure 1, the compressor is an inner container formed to have a predetermined inner space, and the inner container formed in the middle of the inside of the sealed container 1 and has a predetermined inner space A case 2, a drive motor M coupled to the inner side of the inner case 2, a cylinder 4 coupled to an inner stator 3 of the drive motor M, and the inner case 2. The cover plate (5) through which one side of the cylinder (4) penetrates and is coupled to one side of the cylinder (4), and the piston (6) coupled to reciprocate in the cylinder (4), and one side of the cover plate (5). The magnet paddle 8 coupled to the magnet 7 constituting the drive motor and the other side is coupled to one side of the piston 6 to transfer the movement of the drive motor M to the piston 6 and the magnet paddle ( The piston (6) is supported between the inner side of 8) and the side of the inner stator (3) of the drive motor (M). An inner spring (9) elastically supporting the movement of the cover, a cover (10) coupled to the other side of the inner case (2), an outer surface of the magnet paddle (8) and the cover (10) A compressed refrigerant that is supported between the inner surfaces to support the movement of the piston 6 and serves to store kinetic energy, and allows refrigerant gas to be sucked into the cylinder 4 And a valve assembly for discharging the gas.

미설명 부호 12는 구동모터를 구성하는 권선코일을 도시한 것이고, 미설명 부호 13은 구동모터를 구성하는 외측고정자를 도시한 것이다.Reference numeral 12 shows a winding coil constituting the drive motor, and reference numeral 13 shows an outer stator constituting the drive motor.

상기와 바와 같은 압축기는 구동모터(M)에 전류가 인가되면 마그네트(7)가 직선 왕복운동함에 의해 피스톤(6)이 실린더(4)내를 왕복 운동하게 되며 상기 피스톤(6)이 실린더(4)내를 왕복 운동함에 따라 밀폐용기(1)내로 유입된 냉매가스가 피스톤(6) 내부에 형성된 냉매 흡입유로(F)를 통해 실린더(4)내로 흡입되어 압축되고 밸브시스템을 통해 토출되는 과정을 반복하게 된다.In the compressor as described above, when a current is applied to the driving motor M, the magnet 7 linearly reciprocates, causing the piston 6 to reciprocate in the cylinder 4, and the piston 6 moves to the cylinder 4. As the reciprocating motion in the inside of the container (1), the refrigerant gas introduced into the sealed container (1) is sucked into the cylinder (4) through the refrigerant suction flow path (F) formed in the piston (6), compressed and discharged through the valve system Will repeat.

한편, 상기 구동모터(M)의 구동력을 전달받아 실린더(4)내에서 왕복 운동하면서 냉매가스를 흡입하여 압축하는 피스톤(6)은, 도 2에 도시한 바와 같이, 상기 실린더(4)내부에 삽입되도록 원통형으로 형성된 몸체부(6a)의 외주면에 오일이 공급되어 저장되는 소정의 깊이와 폭을 갖는 오일저장홈(6b)이 형성되고 몸체부(6a)의 내부에 냉매가스의 흡입을 안내하는 냉매 흡입유로(F)가 형성되고 몸체부(6a)의 일측단부에 흡입유로(F)를 개폐하는 흡입밸브(15)가 장착되어 이루어진다. 상기 흡입유로(F)는 냉매가스가 흡입되는 입구측의 직경이 크고 흡입밸브(15)가 장착된 측은 오일저장홈(6b)이 형성됨에 의해 직경이 작게 형성되어 있다.On the other hand, the piston (6) for receiving and compressing the refrigerant gas while reciprocating in the cylinder (4) by receiving the driving force of the drive motor (M), as shown in Figure 2, inside the cylinder (4) An oil storage groove 6b having a predetermined depth and width in which oil is supplied and stored is formed on an outer circumferential surface of the body portion 6a formed in a cylindrical shape so as to be inserted therein, and guides suction of refrigerant gas into the body portion 6a. A refrigerant suction flow path F is formed, and a suction valve 15 for opening and closing the suction flow path F is mounted at one end of the body part 6a. The suction passage F has a larger diameter at the inlet side through which the refrigerant gas is sucked and a smaller diameter at the side on which the suction valve 15 is mounted due to the oil storage groove 6b being formed.

미설명 부호 4a는 오일유로이고, 16은 토출밸브 조립체이며, 17은 헤드커버이다.Reference numeral 4a denotes an oil passage, 16 is a discharge valve assembly, and 17 is a head cover.

상기 피스톤(6)은 구동모터(M)의 구동력에 의해 실린더(4)내부에서 상사점에서 하사점으로 이동하게 되면 밀폐용기(1)내부와 실린더(4)내부의 압력차에 의한 흡입력에 의해 흡입밸브(15)가 열리면서 냉매가스가 흡입유로(F)를 통해 실린더(4)내로 흡입되고, 상기 피스톤(6)이 하사점에서 상사점으로 이동하게 되면 흡입밸브(15)가 닫히면서 피스톤(6)이 실린더(4)내에 흡입된 냉매가스를 압축하게된다.When the piston 6 moves from the top dead center to the bottom dead center in the cylinder 4 by the driving force of the driving motor M, the piston 6 is caused by the suction force due to the pressure difference between the inside of the sealed container 1 and the inside of the cylinder 4. When the suction valve 15 opens, the refrigerant gas is sucked into the cylinder 4 through the suction flow path F, and when the piston 6 moves from the bottom dead center to the top dead center, the suction valve 15 closes and the piston ( 6) to compress the refrigerant gas sucked into the cylinder (4).

그러나 상기한 바와 같은 압축기에서 냉매가스를 실린더(4)내부로 흡입시키는 종래의 냉매가스 흡입구조는 실린더(4)내부에서 피스톤(6)이 구동모터(M)의 구동력을 전달받아 상사점에서 하사점으로 이동하면서 흡입밸브(15)가 열려 냉매가스가 피스톤(6)의 내부에 형성된 흡입유로(F)를 통해 실린더(4)내부로 흡입되는 과정에서, 피스톤(6)의 내부에 형성된 흡입유로(F)가 냉매가스가 유입되는 유입구(a)측의 직경보다 유출되는 유출구(b)측의 직경이 작기 때문에 유입구(a)측으로 유입된 냉매가스가 모두 유출구(b)측을 통해 실린더(4)내부로 흡입되지 못하고 역류하여 유입구(a)측을 통해 유입되는 냉매가스와 충돌하게 됨으로써 실린더(4)내부로 흡입되는 냉매가스의 흡입 손실을 발생시켜 흡입효율을 저하시키는 문제점이 있었다.However, in the compressor as described above, the conventional refrigerant gas suction structure for sucking the refrigerant gas into the cylinder 4 is lowered at the top dead center as the piston 6 receives the driving force of the driving motor M from the cylinder 4. While the suction valve 15 is opened while moving to the point, the refrigerant gas is sucked into the cylinder 4 through the suction flow path F formed inside the piston 6, and the suction flow path formed inside the piston 6 Since the diameter of the outlet (b) is smaller than the diameter of the inlet (a) where the refrigerant gas flows in (F), all of the refrigerant gas introduced into the inlet (a) is discharged through the outlet (b). There is a problem in that the suction efficiency of the refrigerant gas sucked into the cylinder 4 is lowered due to the flow of the refrigerant flowed back through the inlet (a) without being sucked into the cylinder.

따라서 본 발명의 목적은 실린더내로 흡입되는 냉매가스의 흡입 유동을 원활하게 하여 냉매가스의 흡입 손실을 감소시킬 수 있도록 한 압축기의 냉매가스 흡입구조를 제공함에 있다.Accordingly, an object of the present invention is to provide a refrigerant gas intake structure of a compressor that facilitates the suction flow of refrigerant gas sucked into a cylinder to reduce the suction loss of the refrigerant gas.

제1도는 일반적인 압축기의 일예를 도시한 단면도.1 is a cross-sectional view showing an example of a general compressor.

제2도는 종래 압축기의 냉매가스 흡입구조를 도시한 단면도.2 is a cross-sectional view showing a refrigerant gas suction structure of a conventional compressor.

제3도는 본 발명의 압축기의 냉매가스 흡입구조를 도시한 단면도.3 is a cross-sectional view showing a refrigerant gas suction structure of the compressor of the present invention.

＜도면의 주요부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>

4 : 실린더 6 : 실린더4 cylinder 6 cylinder

6c : 실린더 방지턱 15 : 흡입밸브6c: Cylinder Jaw 15: Suction Valve

a : 흡입유로 유입구 F : 흡입유로a: suction passage inlet F: suction passage

M : 구동모터M: drive motor

상기한 바와 같은 본 발명의 목적을 달성하기 위하여 내부에 냉매가스의 흡입을 안내하는 흡입유로가 형성되고 일측단부에 상기 흡입유로를 개폐하는 흡입밸브가 장착된 피스톤이 구동모터의 구동력을 전달받아 실린더 내부에서 움직임에 의해 흡입밸브가 열리면서 흡입유로를 통해 실린더내로 냉매가스가 흡입되는 압축기의 냉매가스 흡입구조에 있어서; 상기 냉매가스의 흡입을 안내하는 피스톤 흡입유로의 내주면에 냉매가스의 역류를 방지하도록 돌출 형성된 방지턱이 소정의 간격을 두고 수개 형성된 것을 특징으로 압축기의 냉매가스 흡입구조가 제공된다.In order to achieve the object of the present invention as described above, a suction flow passage for guiding the suction of refrigerant gas is formed therein, and a piston equipped with a suction valve for opening and closing the suction flow passage at one end thereof receives a driving force of a driving motor. In the refrigerant gas suction structure of the compressor in which the refrigerant gas is sucked into the cylinder through the suction passage while the suction valve is opened by the movement inside; Refrigerant gas suction structure of the compressor is provided, characterized in that a plurality of protruding projections formed on the inner circumferential surface of the piston suction passage for guiding the suction of the refrigerant gas are formed at predetermined intervals at predetermined intervals.

상기 방지턱은 그 단부가 흡입밸브측으로 향하도록 경사지게 형성됨을 특징으로 하는 압축기의 냉매가스 흡입구조가 제공된다.The prevention jaw is provided with a refrigerant gas suction structure of the compressor, characterized in that the end is formed to be inclined toward the suction valve side.

상기 방지턱의 직경과 높이는 공진주파수와 일치하도록 형성됨을 특징으로 하는 압축기의 냉매가스 흡입구조가 제공된다.The refrigerant gas suction structure of the compressor is provided so that the diameter and height of the bumps are formed to match the resonance frequency.

이하, 본 발명의 압축기 냉매가스 흡입구조를 첨부도면에 도시한 실시예에 따라 설명하면 다음과 같다.Hereinafter, the compressor refrigerant gas suction structure of the present invention will be described according to the embodiment shown in the accompanying drawings.

본 발명의 압축기 냉매가스 흡입구조는, 도 3에 도시한 바와 같이, 내부에 냉매가스의 흡입을 안내하는 흡입유로(F)가 형성되고 일측단부에 상기 흡입유로(F)를 개폐하는 흡입밸브(15)가 장착된 피스톤(6)이 구동모터(M)의 구동력을 전달받아 실린더(4)내부에서 움직임에 의해 흡입밸브(15)가 열리면서 흡입유로(F)를 통해 실린더(4)내로 냉매가스가 흡입되는 구조는 종래와 유사하다.In the compressor refrigerant gas suction structure of the present invention, as shown in Figure 3, the suction passage (F) for guiding the suction of the refrigerant gas is formed therein and the suction valve for opening and closing the suction passage (F) at one end ( The piston 6 equipped with the 15 receives the driving force of the driving motor M, and the suction valve 15 is opened by the movement inside the cylinder 4, and the refrigerant gas is introduced into the cylinder 4 through the suction flow path F. Is similar to the conventional structure.

그리고 상기 피스톤 흡입유로(F)의 내주면에 냉매가스의 역류를 방지하도록 돌출 형성된 방지턱(6c)이 소정의 간격을 두고 수개 형성된다.In addition, a plurality of protruding jaws 6c protrudingly formed on the inner circumferential surface of the piston suction passage F to prevent a backflow of the refrigerant gas are formed at predetermined intervals.

상기 수개의 방지턱(6c)은 냉매가스가 유입되는 흡입유로(F)의 유입측에 형성됨이 바람직하다.It is preferable that the several prevention jaws 6c are formed at the inflow side of the suction passage F through which the refrigerant gas is introduced.

상기 방지턱(6c)은 흡입유로(F)를 형성하는 피스톤(6)의 내주면에 소정의 폭과 높이를 갖는 원형링 형태로 돌출 형성됨이 바람직하고, 상기 방지턱(6c)은 그 단부가 흡입밸브(15)측으로 향하도록 경사지게 형성된다.The prevention jaw 6c is preferably formed to protrude in the form of a circular ring having a predetermined width and height on the inner circumferential surface of the piston 6 forming the suction flow path F, and the prevention jaw 6c has an end thereof as a suction valve ( 15) is formed to be inclined toward the side.

상기 원형링 형태로 형성된 방지턱(6c)의 내경은 피스톤(6)의 외주면에 형성된 오일저장홈(6b)측에 위치하는 부분의 흡입유로(F) 내경과 상응하거나 작게 형성됨이 바람직하다.The inner diameter of the prevention jaw 6c formed in the shape of the circular ring is preferably formed to correspond to or smaller than the inner diameter of the suction flow path F of the portion located on the oil storage groove 6b side formed on the outer circumferential surface of the piston 6.

이하, 본 발명의 압축기 냉매가스 흡입구조의 작용효과를 설명하면 다음과 같다.Hereinafter, the operational effects of the compressor refrigerant gas suction structure of the present invention will be described.

먼저, 상기 실린더(4)내부에서 피스톤(6)이 구동모터(M)의 구동력을 전달받아 상사점에서 하사점으로 이동하면서 흡입밸브(15)가 열려 냉매가스가 피스톤(6)의 내부에 형성된 흡입유로(F)를 통해 실린더(4)내부로 흡입된다. 이때 흡입유로(F)로 유입되어 흡입밸브(15)측으로 이동하는 냉매가스의 일부가 흡입밸브(15)를 통해 실린더(4)내로 흡입되지 못하고 역류하게 되면 흡입유로(F)에 형성된 수개의 방지턱(6c)에 의해 역류가 방지되면서 흡입유로(F)에 형성된 수개의 방지턱(6c)에 의해 역류가 방지되면서 흡입유로(F)를 따라 다시 흡입밸브(15)측으로 유동하여 실린더(4)내로 흡입된다. 이로 인하여 흡입유로(F)로 유입되는 냉매가스와 역류되는 냉매가스의 충돌을 방지하여 냉매가스의 흡입손실을 감소시킴으로써 실린더(4)내부로 흡입되는 냉매가스의 흡입이 원활하여 흡입량을 증가시키게 된다.First, the intake valve 15 is opened while the piston 6 receives the driving force of the driving motor M from the top dead center to the bottom dead center in the cylinder 4, and the refrigerant gas is formed inside the piston 6. It is sucked into the cylinder (4) through the suction flow path (F). At this time, if some of the refrigerant gas flowing into the suction channel F and moving toward the suction valve 15 is not sucked into the cylinder 4 through the suction valve 15 and flows backward, several prevention jaws formed in the suction channel F are prevented. While backflow is prevented by 6c, the backflow is prevented by several prevention jaws 6c formed in the suction flow path F, and flows back along the suction flow path F to the suction valve 15 side and sucks into the cylinder 4. do. Accordingly, by preventing the collision of the refrigerant gas flowing into the suction flow path F and the refrigerant gas flowing backward, the suction loss of the refrigerant gas is reduced, so that the suction of the refrigerant gas sucked into the cylinder 4 is smoothly increased to increase the suction amount. .

본 발명의 다른 실시예로서, 피스톤(6)의 내부에 형성된 흡입유로(F)에서 냉매가스가 유입되는 부분의 직경을 공진 주파수와 일치하도록 형성하여 흡입유로(F)로 유입된 냉매가스의 역류를 방지할 수 있다.In another embodiment of the present invention, the diameter of the portion in which the refrigerant gas flows in the suction flow path F formed inside the piston 6 is formed to match the resonant frequency so that the reverse flow of the refrigerant gas flows into the suction flow path F. Can be prevented.

이상에서 설명한 바와 같이, 본 발명에 의한 압축기의 냉매가스 흡입구조는 피스톤의 내부에 형성되어 실린더내에 냉매가스가 흡입되도록 안내하는 흡입유로에 냉매가스의 역류를 방지하는 방지턱이 형성되어 흡입유로로 유입되는 냉매가스가 실린더내로 흡입되는 것이 원활하게 됨으로써 냉매가스의 흡입량을 증가시켜 냉매가스의 흡입효율을 높일 수 있는 효과가 있다.As described above, the refrigerant gas suction structure of the compressor according to the present invention is formed inside the piston, and a suction barrier is formed in the suction passage for guiding the refrigerant gas to be sucked in the cylinder, thereby preventing the backflow of the refrigerant gas. Since the refrigerant gas is smoothly sucked into the cylinder, there is an effect of increasing the suction amount of the refrigerant gas to increase the suction efficiency of the refrigerant gas.

Claims (3)

내부에 냉매가스의 흡입을 안내하는 흡입유로가 형성되고 일측단부에 상기 흡입유로를 개폐하는 흡입밸브가 장착된 피스톤이 구동모터의 구동력을 전달받아 실린더 내부에서 움직임에 의해 흡입밸브가 열리면서 흡입유로를 통해 실린더내로 냉매가스가 흡입되는 압축기의 냉매가스 흡입구조에 있어서; 상기 냉매가스의 흡입을 안내하는 피스톤 흡입유로의 내주면에 냉매가스의 역류를 방지하도록 소정의 폭과 높이를 갖는 원형링 형태로 돌출 형성된 방지턱이 소정의 간격을 두고 수개 형성된 것을 특징으로 압축기의 냉매가스 흡입구조.A suction passage is formed inside the suction passage for guiding the suction of the refrigerant gas, and a piston equipped with a suction valve for opening and closing the suction passage at one end receives the driving force of the driving motor, and the suction valve opens by moving in the cylinder. In the refrigerant gas suction structure of the compressor through which the refrigerant gas is sucked into the cylinder through; Refrigerant gas of the compressor characterized in that a plurality of bumps protruding in the form of a circular ring having a predetermined width and height formed on the inner circumferential surface of the piston suction flow path for guiding the suction of the refrigerant gas at predetermined intervals Suction structure. 제1항에 있어서, 상기 방지턱은 그 단부가 흡입밸브측으로 향하도록 경사지게 형성됨을 특징으로 하는 압축기의 냉매가스 흡입구조.2. The refrigerant gas suction structure of a compressor according to claim 1, wherein the prevention jaw is formed to be inclined such that an end thereof faces the suction valve side. 제1항에 있어서, 상기 방지턱의 직경과 높이가 공진주파수와 일치하도록 형성됨을 특징으로 하는 압축기의 냉매가스 흡입구조.The refrigerant gas suction structure of a compressor of claim 1, wherein the diameter and height of the bumps are formed to match a resonance frequency.
KR1019970077650A 1997-12-30 1997-12-30 Refrigerant Gas Suction Structure of Compressor Expired - Fee Related KR100266597B1 (en)

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