KR100273420B1 - Outlet valve assembly of linear compressor - Google Patents

Outlet valve assembly of linear compressor Download PDF

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Publication number
KR100273420B1
KR100273420B1 KR1019980017007A KR19980017007A KR100273420B1 KR 100273420 B1 KR100273420 B1 KR 100273420B1 KR 1019980017007 A KR1019980017007 A KR 1019980017007A KR 19980017007 A KR19980017007 A KR 19980017007A KR 100273420 B1 KR100273420 B1 KR 100273420B1
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KR
South Korea
Prior art keywords
discharge
valve body
valve assembly
cylinder
linear compressor
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Application number
KR1019980017007A
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Korean (ko)
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KR19990084938A (en
Inventor
오원식
Original Assignee
구자홍
엘지전자주식회사
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Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR1019980017007A priority Critical patent/KR100273420B1/en
Priority to JP10374768A priority patent/JP3058412B2/en
Priority to IT1998MI002850A priority patent/IT1304064B1/en
Priority to BR9805890-8A priority patent/BR9805890A/en
Priority to DE19860726A priority patent/DE19860726C2/en
Priority to US09/222,658 priority patent/US6152710A/en
Priority to CNB981267092A priority patent/CN1143960C/en
Publication of KR19990084938A publication Critical patent/KR19990084938A/en
Application granted granted Critical
Publication of KR100273420B1 publication Critical patent/KR100273420B1/en

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Classifications

    • 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
    • F04B39/10—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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

PURPOSE: An outlet valve assembly of linear compressor is provided to minimize re-expansion loss due to over-compression by making compressed gas smoothly discharged. CONSTITUTION: An outlet valve assembly comprises a valve body(110); and multiple exhaust grooves(120). The valve body(110) divides a compressive chamber(S1) and a discharge chamber(S2) is pushed by difference of pressure between the compressive chamber and the discharge chamber to reciprocate inside a head cover(14) covering a front end of a cylinder(12). The exhaust grooves are formed on the periphery of the valve body to open as the valve body is detached from the cylinder when compressed gas is discharged so that compressed gas flows into the discharge chamber through the exhaust grooves.

Description

리니어 압축기의 토출밸브 조립체Discharge Valve Assembly of Linear Compressor

본 발명은 리니어 압축기에 관한 것으로, 특히 압축가스의 원활한 토출로 가스가 과압축되는 것을 방지할 수 있는 리니어 압축기의 토출밸브 조립체에 관한 것이다.The present invention relates to a linear compressor, and more particularly, to a discharge valve assembly of a linear compressor that can prevent the gas from being overcompressed by the smooth discharge of the compressed gas.

알려진 바와 같이, 리니어 압축기는 크랭크축을 대신하여 마그네트 및 코일로 피스톤을 직접 왕복운동시켜 냉매를 압축시키는 것으로, 그 일례가 도 1에 도시되어 있다.As is known, a linear compressor compresses a refrigerant by directly reciprocating a piston with a magnet and a coil in place of the crankshaft, an example of which is shown in FIG.

이에 도시된 바와 같이, 종래의 리니어 압축기는 소정형상을 갖는 밀폐용기(C)의 내부에 횡방향으로 설치되어 냉매를 흡입하여 압축 및 토출하는 압축기 유니트(10)와, 그 압축기 유니트(10)의 외부에 고정되어 미끄럼부에 오일을 공급하는 오일 공급수단(20)으로 구성되어 있다.As shown in the drawing, the conventional linear compressor has a compressor unit 10 installed in the transverse direction inside the sealed container C having a predetermined shape to suck, compress, and discharge the refrigerant, and the compressor unit 10. It is fixed to the outside is composed of an oil supply means 20 for supplying oil to the sliding portion.

상기 압축기 유니트(10)는 리니어 모터(11)의 고정자(11A)에 일체로 결합되는 실린더(12)와, 상기 리니어 모터(11)의 가동자(11B)에 결합됨과 아울러 실린더(12)의 미끄럼면에 밀착 삽입되어 압축실(S1)을 형성하며 선형으로 왕복운동을 하면서 냉매를 흡입 압축 토출시키는 피스톤(13)과, 상기 실린더(12)의 선단면에 복개되어 토출실(S2)을 형성하는 헤드케버(14)와, 상기 피스톤(13)의 선단면에 코크(15a)로 체결되는 흡입밸브(15)와, 상기 피스톤(13) 및 헤드커버(14)의 사이를 구획하여 압축실(S1) 및 토출실(S2)을 구분하는 토출밸브 조립체(16)와, 그 토출밸브 조립체(16)를 지지하는 압축코일스프링(17)을 포함하여 이루어져 있다.The compressor unit 10 is coupled to the cylinder 12 which is integrally coupled to the stator 11A of the linear motor 11, and to the mover 11B of the linear motor 11 and to the sliding of the cylinder 12. The piston 13 is tightly inserted into the surface to form a compression chamber S1 and is linearly reciprocated while being sucked and discharged from the refrigerant 13, and covered with the front end surface of the cylinder 12 to form the discharge chamber S2. The head chamber 14, the suction valve 15 which is fastened to the front end surface of the piston 13 by the coke 15a, and the compression chamber S1 by partitioning between the piston 13 and the head cover 14. ) And a discharge valve assembly 16 for separating the discharge chamber S2 and a compression coil spring 17 for supporting the discharge valve assembly 16.

상기 토출밸브 조립체(16)는, 그 중앙에 토출구(16a-1)가 형성되어 실린더의 선단면에 밀착되도록 걸쳐지는 원판형의 헤드(16a)와, 그 헤드(16a)의 토출측에 결합되어 토출행정시 열리는 밸브(16b)와, 그 밸브(16b)를 헤드(16a)와 함께 양쪽에서 눌러 고정함과 아울러 밸브(16b)의 열림정도를 제한하는 리테이너(16c)로 이루어져 있다.The discharge valve assembly 16 has a discharge head 16a-1 formed at the center thereof, and is connected to the discharge head of the disc 16a and a disc-shaped head 16a which extends to be in close contact with the front end surface of the cylinder. The valve 16b opened during the stroke, and the retainer 16c which presses and fixes the valve 16b together with the head 16a from both sides, and limits the opening degree of the valve 16b.

도면중 미설명 부호인 14a는 토출포트이고, 16b-1은 개폐부이며, 16c-1은 배기구이고, 18A 및 18B는 내,외측 압축코일스프링이며, 19는 냉매흡입관이다.In the figure, reference numeral 14a is a discharge port, 16b-1 is an opening and closing portion, 16c-1 is an exhaust port, 18A and 18B are inner and outer compression coil springs, and 19 is a refrigerant suction pipe.

상기와 같은 리니어 압축기에서 리니어 모터(11)에 전류가 인가되면, 상기 가동자(11B)가 직선 왕복운동함에 의해 피스톤(13)이 실린더(12)내를 왕복운동하게 되고, 그 피스톤(13)이 실린더(12)내를 왕복운동함에 따라 밀폐용기(C)내로 유입된 냉매가스가 피스톤(13) 중심에 형성된 냉매유로(미부호)를 통해 실린더(12)의 압축실(S1)내로 흡입되어 압축된 이후에 토출되는 과정을 반복하게 된다.When current is applied to the linear motor 11 in the linear compressor as described above, the piston 13 reciprocates in the cylinder 12 by the linear reciprocating motion of the mover 11B, and the piston 13 As the cylinder 12 reciprocates, the refrigerant gas introduced into the sealed container C is sucked into the compression chamber S1 of the cylinder 12 through a refrigerant passage (not shown) formed at the center of the piston 13. After compressed, the discharge process is repeated.

여기서, 상기 압축된 냉매가 토출되는 과정은 다음과 같다.Here, the process of discharging the compressed refrigerant is as follows.

즉, 상기 피스톤(13)이 전진운동을 하여 압축실(S1)의 냉매를 압축하게 되면, 그 압축되는 냉매의 압력이 상승하다가 어느 시점에 이르러서는 토출밸브 조립체(16)의 밸브(16b)를 이기고 헤드(16a)의 토출구(16a-1)를 열게 되고, 그 열린 헤드(16a)의 토출구(16a-1)를 통해 토출되는 냉매는 리테이너(16c)의 배기구(16c-1)를 통해 토출실로 유입되어 토출포트(14a)를 거쳐 토출되는 것이었다.That is, when the piston 13 moves forward to compress the refrigerant in the compression chamber S1, the pressure of the compressed refrigerant rises and at some point, the valve 16b of the discharge valve assembly 16 is opened. Then, the discharge port 16a-1 of the head 16a is opened, and the refrigerant discharged through the discharge port 16a-1 of the open head 16a passes through the exhaust port 16c-1 of the retainer 16c to the discharge chamber. It was introduced and discharged through the discharge port 14a.

이때, 상기 토출밸브 조립체(16)가 압축된 냉매의 압력에 의해 미세하게 밀려나 그 틈새로 냉매의 일부가 배기될 수도 있으나, 대부분의 냉매는 전술한 헤드(16a)의 토출구(16a-1)를 통해 토출된다.At this time, the discharge valve assembly 16 is slightly pushed by the pressure of the compressed refrigerant, but a part of the refrigerant may be exhausted through the gap, most of the refrigerant to the discharge port (16a-1) of the head (16a) described above Discharged through.

그러나, 상기와 같은 종래 리니어 압축기의 토출밸브 조립체에 있어서는, 헤드(16a)의 토출구(16a-1)가 좁기 때문에 압축가스가 용이하게 토출되지 못하고 압축실(S1)에 잔존하게 되어 다음 압축행정시 과압축되면서 재팽창손실을 유발시켜 압축기 효율을 저하시키는 문제점이 있었다.However, in the discharge valve assembly of the conventional linear compressor as described above, since the discharge port 16a-1 of the head 16a is narrow, the compressed gas is not easily discharged and remains in the compression chamber S1, and at the next compression stroke. There was a problem of reducing the efficiency of the compressor by causing re-expansion loss while over-compression.

또한, 상기 토출밸브 조립체(16)의 전체 중량이 비대하여 피스톤(13)과의 충돌시 또는 피스톤(13)에 의해 밀렸던 토출밸브 조립체(16)의 헤드(16a)가 실린더(12)의 선단면에 부딪힐 때 소음 및 마모가 발생되는 문제점도 있었다.In addition, when the total weight of the discharge valve assembly 16 is excessive, the head 16a of the discharge valve assembly 16, which is pushed by the piston 13 or in the case of collision with the piston 13, is the front end surface of the cylinder 12. There was also a problem that noise and wear occurs when hitting.

따라서, 본 발명은 상기와 같은 종래 리니어 압축기의 토출밸브 조립체가 가지는 문제점을 감안하여 안출한 것으로, 압축가스가 원활하게 토출되도록 하여 과압축에 따른 재팽창손실을 최소화할 수 있는 리니어 압축기의 토출밸브 조립체를 제공하려는데 본 발명의 목적이 있다.Accordingly, the present invention has been made in view of the problems of the discharge valve assembly of the conventional linear compressor as described above, the discharge valve of the linear compressor that can minimize the re-expansion loss due to overcompression by allowing the compressed gas to be discharged smoothly It is an object of the present invention to provide an assembly.

또한, 상기 피스톤의 왕복운동시 그 피스톤 및 실린더에 부딪혀 발생되던 소음 및 마모를 감소시킬 수 있는 리니어 압축기의 토출밸브 조립체를 제공하려는데도 본 발명의 목적이 있다.It is also an object of the present invention to provide a discharge valve assembly of a linear compressor that can reduce the noise and abrasion caused by hitting the piston and the cylinder during the reciprocating motion of the piston.

도 1은 종래 리니어 압축기의 일례를 보인 종단면도.1 is a longitudinal sectional view showing an example of a conventional linear compressor.

도 2는 종래 리니어 압축기의 토출밸브 조립체를 설명하기 위해 보인 종단면도.Figure 2 is a longitudinal sectional view shown to explain the discharge valve assembly of a conventional linear compressor.

도 3은 종래 리니어 압축기의 밸브의 일례를 보인 평면도.3 is a plan view showing an example of a valve of a conventional linear compressor.

도 4a 및 도 4b는 본 발명 리니어 압축기의 토출밸브 조립체의 구성 및 동작을 설명하기 위해 보인 종단면도.Figures 4a and 4b is a longitudinal sectional view shown for explaining the configuration and operation of the discharge valve assembly of the linear compressor of the present invention.

도 5는 본 발명 리니어 압축기의 밸브를 보인 평면도.5 is a plan view showing a valve of the linear compressor of the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

12 : 실린더 13 : 피스톤12 cylinder 13 piston

14 : 헤드커버 15 : 흡입밸브14: head cover 15: suction valve

100 : 토출밸브 조립체 110 : 밸브몸체100: discharge valve assembly 110: valve body

111 : 내판 111a : 토출구111: inner plate 111a: discharge port

112 : 외판 111b,112b : 안내돌기112: outer plate 111b, 112b: guide protrusion

120 : 배기홈120: exhaust groove

이와 같은 본 발명의 목적을 달성하기 위하여, 압축실과 토출실간의 압력차에 의해 밀려 실린더의 선단면을 복개하고 있는 헤드커버의 내부에서 왕복운동을 하는 밸브몸체와, 그 밸브몸체의 테두리면에 형성되어 압축가스의 토출시 실린더로부터 이격되는 중에 개방되는 수개의 배기홈으로 구성되는 것을 특징으로 하는 리니어 압축기의 토출밸브 조립체가 제공된다.In order to achieve the object of the present invention, the valve body is reciprocated in the interior of the head cover which is pushed by the pressure difference between the compression chamber and the discharge chamber to cover the front end surface of the cylinder, and formed on the rim surface of the valve body. The discharge valve assembly of the linear compressor is provided, characterized in that it consists of several exhaust grooves which are opened while being spaced apart from the cylinder during discharge of the compressed gas.

이하, 본 발명에 의한 리니어 압축기의 토출밸브 조립체를 첨부도면에 도시된 일실시예에 의거하여 상세하게 설명한다.Hereinafter, the discharge valve assembly of the linear compressor according to the present invention will be described in detail with reference to the embodiment shown in the accompanying drawings.

도 4a 및 도 4b는 본 발명 리니어 압축기의 토출밸브 조립체의 구성 및 동작을 설명하기 위해 보인 종단면도이고, 도 5는 본 발명 리니어 압축기의 밸브를 보인 평면도이다.Figures 4a and 4b is a longitudinal sectional view shown for explaining the configuration and operation of the discharge valve assembly of the linear compressor of the present invention, Figure 5 is a plan view showing a valve of the linear compressor of the present invention.

이에 도시된 바와 같이 본 발명에 의한 토출밸브 조립체가 구비된 리니어 압축기의 압축기 유니트는, 리니어 모터(도 1에 도시)(11)의 고정자(11A)에 일체로 결합되는 실린더(12)와, 상기 리니어 모터(11)의 가동자(11B)에 결합됨과 아울러 실린더(12)의 미끄럼면에 밀착 삽입되어 압축실(S1)을 형성하며 선형으로 왕복운동을 하면서 냉매를 흡입 압축 토출시키는 피스톤(13)과, 상기 실린더(12)의 선단면에 복개되어 토출실을 형성하는 헤드케버(14)와, 상기 피스톤(13)의 선단면에 코크(15a)로 체결되는 흡입밸브(15)와, 상기 피스톤(13) 및 헤드커버(14)의 사이를 구획하여 압축실(S1) 및 토출실(S2)을 구분하는 토출밸브 조립체(20)와, 그 토출밸브 조립체(20)를 지지하는 압축코일스프링(17)을 포함하여 구성되는 것으로, 이러한 기본구조는 종래와 동일하다.As shown therein, the compressor unit of the linear compressor provided with the discharge valve assembly according to the present invention includes a cylinder 12 integrally coupled to the stator 11A of the linear motor 11 (shown in FIG. 1), and A piston 13 coupled to the mover 11B of the linear motor 11 and tightly inserted into the sliding surface of the cylinder 12 to form a compression chamber S1 and linearly reciprocating to suck and discharge the refrigerant. And a head cover 14 which is covered on the front end surface of the cylinder 12 to form a discharge chamber, a suction valve 15 which is fastened to the front end surface of the piston 13 by a coke 15a, and the piston. Discharge valve assembly 20 which divides between 13 and the head cover 14, and separates compression chamber S1 and discharge chamber S2, and the compression coil spring which supports the discharge valve assembly 20 ( 17), the basic structure is the same as in the prior art.

여기서, 상기 토출밸브 조립체(100)는 압축실(S1)과 토출실(S2) 간의 압력차에 의해 밀려 실린더(12)의 선단면을 복개하고 있는 헤드커버(14)의 내부에서 왕복운동을 하는 밸브몸체(110)와, 그 밸브몸체(110)의 테두리면에 형성되어 압축가스의 토출시 실린더(12)로부터 이격되는 중에 개방되는 수개의 배기홈(120)으로 이루어진다.Here, the discharge valve assembly 100 is pushed by the pressure difference between the compression chamber (S1) and the discharge chamber (S2) to reciprocate inside the head cover (14) covering the front end surface of the cylinder (12). The valve body 110 and a plurality of exhaust grooves 120 are formed on the rim surface of the valve body 110 and are opened while being spaced apart from the cylinder 12 when discharging the compressed gas.

상기 밸브몸체(110)는 내판(111) 및 외판(112)으로 구분되어 실린더(12)의 선단면과 코일스프링(17)에 의해 상호 밀착되고, 그 중에서 피스톤(13)에 대향되는 내판(111)의 중앙에는 토출구(111a)가 형성되는 한편, 상기 내,외판(111,112)의 각 배기홈(120) 사이마다에는 헤드커버(14)의 내주면에 외주면이 미끄럼 접촉되는 안내돌기(111b,112b)가 각각 형성된다.The valve body 110 is divided into an inner plate 111 and an outer plate 112 to be in close contact with each other by the front end surface of the cylinder 12 and the coil spring 17, among which the inner plate 111 is opposed to the piston 13. The discharge port 111a is formed at the center of the center, and the guide protrusions 111b and 112b are in sliding contact with the inner circumferential surface of the head cover 14 between each of the exhaust grooves 120 of the inner and outer plates 111 and 112. Are each formed.

도면중 종래와 동일한 부분에 대하여는 동일한 부호를 부여하였다.In the drawings, the same reference numerals are given to the same parts as in the prior art.

도면중 미설명 부호인 13a는 피스톤의 냉매유로, 14a는 토출포트이다.In the figure, reference numeral 13a denotes a refrigerant flow path of the piston, and 14a denotes a discharge port.

상기와 같이 구성되는 본 발명에 의한 리니어 압축기의 기본동작은 종래와 동일하다.Basic operation of the linear compressor according to the present invention configured as described above is the same as in the prior art.

즉, 리니어 모터(미도시)에 전류가 인가되면 가동자(미도시)가 직선 왕복운동함에 의해 피스톤(13)이 실린더(12)내를 왕복운동하게 되고, 그 피스톤(13)이 실린더(12)내를 왕복운동함에 따라 밀폐용기(미도시)내로 유입된 냉매가스가 피스톤(13) 중심에 형성된 냉매유로(13a)를 통해 실린더(13)의 압축실(S1)내로 흡입되어 압축된 이후에 토출되는 과정을 반복하게 된다.That is, when a current is applied to the linear motor (not shown), the piston (13) reciprocates in the cylinder (12) by the linear reciprocation of the mover (not shown), and the piston (13) moves the cylinder (12). The refrigerant gas introduced into the sealed container (not shown) through the reciprocating motion is sucked into the compression chamber S1 of the cylinder 13 through the refrigerant passage 13a formed at the center of the piston 13, and then compressed. The discharge process is repeated.

이때, 상기 피스톤(13)이 전진운동을 하게 되면, 그 피스톤(13)에 의해 압축실(S1)의 압력이 토출실(S2)의 압력에 비해 상대적으로 고압이 되어 내,외판(111,112)이 밀착된 밸브몸체(110)가 코일스프링(17)의 탄성력을 이기면서 함께 밀려나게 되고, 그 밀려나는 밸브몸체(110)가 실린더(12)의 선단면으로부터 이격되면서 각 배기홈(120)이 개방되어 압축가스가 그 배기홈(120)을 통해 토출실(S2)로 흘러 유입되는 것이다.At this time, when the piston 13 is moved forward, the pressure of the compression chamber (S1) is relatively high pressure compared to the pressure of the discharge chamber (S2) by the piston 13 is the inner, outer shell (111, 112) The close valve body 110 is pushed together while winning the elastic force of the coil spring 17, and the exhaust valve body 110 is opened while the pushed valve body 110 is spaced apart from the front end surface of the cylinder 12. The compressed gas flows into the discharge chamber S2 through the exhaust groove 120.

여기서, 상기 밸브몸체(110)의 테두리면, 즉 각 배기홈(120)의 사이마다에는 헤드커버(14)의 내주면에 그 외주면이 미끄럼 접촉하는 안내돌기(111b,112b)가 형성되어 밸브몸체(110)가 제위치를 유지한 상태에서 미끄럼운동을 원활하게 할 수 있게 되는 것이다.Here, guide protrusions 111b and 112b are formed on the inner circumferential surface of the head cover 14 to make sliding contact between the rim surface of the valve body 110, that is, between each exhaust groove 120, so that the valve body ( 110 will be able to smoothly slide while maintaining the position.

또한, 상기 밸브몸체(110)의 내,외판(111,112)중에서 피스톤(13)에 대향되는 내판의 중앙에는 토출구(111a)가 형성되어 상기 내,외판(111,112)의 일시적인 분리시 압축가스의 토출이 보다 원활하게 되는 것은 물론, 상기 피스톤(13)에 흡입밸브(15)를 고정시키기 위한 코크(15a)가 피스톤(13)의 압축행정시 그 토출구(111a)에 삽입되므로 밸브몸체(110)에 코크(15a)가 직접 부딪히지 않게 되는 것이다.In addition, a discharge port 111a is formed in the center of the inner plate of the valve body 110 opposite to the piston 13 among the inner and outer plates 111 and 112, so that the discharge of the compressed gas when the inner and outer plates 111 and 112 are temporarily separated. As well as more smoothly, the cock (15a) for fixing the intake valve 15 to the piston 13 is inserted into the discharge port (111a) during the compression stroke of the piston 13, so the cock to the valve body 110 (15a) will not hit directly.

한편, 본 실시예에서는 상기 피스톤의 흡입밸브를 감안하여 밸브몸체를 내,외판으로 분리하고, 그 중 내판에 흡입밸브 고정용 코크의 높이를 고려한 토출구를 형성하였으나, 상기 흡입밸브가 피스톤의 선단면보다 안쪽에 장착되는 경우에는 밸브몸체를 내,외판의 구분없이 일체형으로 형성하더라도 무관하다.On the other hand, in the present embodiment, in consideration of the intake valve of the piston, the valve body is separated into an inner and an outer plate, and a discharge port considering the height of the intake valve fixing cock is formed in the inner plate, but the intake valve is smaller than the front end surface of the piston. In the case of being mounted inside, the valve body may be formed integrally with no distinction between inner and outer plates.

이상에서 설명한 바와 같이, 본 발명에 의한 리니어 압축기의 토출밸브 조립체는 압축실과 토출실을 구획하며 그 압축실과 토출실 간의 압력차에 의해 밀려 실린더의 선단면을 복개하고 있는 헤드커버의 내부에서 왕복운동을 하는 밸브몸체와, 그 밸브몸체의 테두리면에 형성되어 압축가스의 토출시 실린더로부터 이격되는 중에 개방되는 수개의 배기홈으로 구성함으로써, 압축가스가 원활하게 토출되도록 하여 과압축에 따른 재팽창손실을 최소화할 수 있을 뿐만 아니라, 상기 피스톤의 왕복운동시 그 피스톤 및 실린더에 부딪혀 발생되던 소음 및 마모를 감소시킬 수 있는 효과가 있다.As described above, the discharge valve assembly of the linear compressor according to the present invention partitions the compression chamber and the discharge chamber and is reciprocated in the head cover which is pushed by the pressure difference between the compression chamber and the discharge chamber to cover the front end surface of the cylinder. And a plurality of exhaust grooves formed on the rim of the valve body and opened while being spaced apart from the cylinder when the compressed gas is discharged, so that the compressed gas is smoothly discharged and reexpansion loss due to overcompression. In addition to minimizing the noise, the piston and the cylinder during the reciprocating motion of the piston has the effect of reducing the noise and wear caused by hitting.

Claims (3)

압축실과 토출실을 구획하며 그 압축실과 토출실 간의 압력차에 의해 밀려 실린더의 선단면을 복개하고 있는 헤드커버의 내부에서 왕복운동을 하는 밸브몸체와, 그 밸브몸체의 테두리면에 형성되어 압축가스의 토출시 실린더로부터 이격되는 중에 개방되는 수개의 배기홈으로 구성되는 것을 특징으로 하는 리니어 압축기의 토출밸브 조립체.A valve body which partitions the compression chamber and the discharge chamber and is reciprocated in the head cover which is pushed by the pressure difference between the compression chamber and the discharge chamber to cover the front end surface of the cylinder, and is formed on the rim surface of the valve body and compressed gas A discharge valve assembly of a linear compressor, characterized in that it consists of several exhaust grooves which are opened while being spaced apart from the cylinder during discharge. 제1항에 있어서, 상기 밸브몸체의 각 배기홈 사이에는 헤드커버의 내주면에 외주면이 미끄럼 접촉되는 안내돌기가 각각 형성되는 것을 특징으로 하는 리니어 압축기의 토출밸브 조립체.The discharge valve assembly of a linear compressor according to claim 1, wherein each of the exhaust grooves of the valve body is formed with guide protrusions in which the outer circumferential surface is in sliding contact with the inner circumferential surface of the head cover. 제2항에 있어서, 상기 밸브몸체는 내판 및 외판으로 구분되어 밀착되고, 그 중에서 피스톤에 대향되는 내판의 중앙에는 토출구가 형성되는 것을 특징으로 하는 리니어 압축기의 토출밸브 조립체.The discharge valve assembly of claim 2, wherein the valve body is divided into an inner plate and an outer plate to be in close contact with each other, and a discharge port is formed at a center of the inner plate opposite to the piston.
KR1019980017007A 1997-12-30 1998-05-12 Outlet valve assembly of linear compressor KR100273420B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1019980017007A KR100273420B1 (en) 1998-05-12 1998-05-12 Outlet valve assembly of linear compressor
JP10374768A JP3058412B2 (en) 1997-12-30 1998-12-28 Discharge valve device for linear compressor
IT1998MI002850A IT1304064B1 (en) 1997-12-30 1998-12-29 DISCHARGE VALVE SYSTEM FOR LINEAR COMPRESSOR
BR9805890-8A BR9805890A (en) 1997-12-30 1998-12-29 Discharge valve system for linear compressor.
DE19860726A DE19860726C2 (en) 1997-12-30 1998-12-30 Exhaust valve system for linear compressor
US09/222,658 US6152710A (en) 1997-12-30 1998-12-30 Discharge valve system for linear compressor
CNB981267092A CN1143960C (en) 1997-12-30 1998-12-30 Discharge valve system for linear compressor

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Publication number Priority date Publication date Assignee Title
KR100524712B1 (en) * 2003-04-07 2005-11-01 엘지전자 주식회사 Discharge assembly for reciprocating compressor

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KR100504906B1 (en) * 2002-08-22 2005-08-01 엘지전자 주식회사 Discharge apparatus of reciprocating compressor
KR20040017962A (en) * 2002-08-23 2004-03-02 엘지전자 주식회사 Valve assembly for compressor
KR101248464B1 (en) * 2006-05-03 2013-03-28 엘지전자 주식회사 Reciprocating compressor
KR102432491B1 (en) * 2020-12-30 2022-08-18 엘지전자 주식회사 Linear compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100524712B1 (en) * 2003-04-07 2005-11-01 엘지전자 주식회사 Discharge assembly for reciprocating compressor

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