KR20000031925A - Structure for emitting heat of venting cover in linear compressor - Google Patents
Structure for emitting heat of venting cover in linear compressor Download PDFInfo
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- KR20000031925A KR20000031925A KR1019980048189A KR19980048189A KR20000031925A KR 20000031925 A KR20000031925 A KR 20000031925A KR 1019980048189 A KR1019980048189 A KR 1019980048189A KR 19980048189 A KR19980048189 A KR 19980048189A KR 20000031925 A KR20000031925 A KR 20000031925A
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- South Korea
- Prior art keywords
- venting
- discharge
- cover
- cylinder
- linear compressor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- 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
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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
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/062—Cooling by injecting a liquid in the gas to be compressed
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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
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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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
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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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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- 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
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- 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
Abstract
Description
본 발명은 리니어 압축기의 토출커버 방열구조에 관한 것으로, 특히 토출커버의 과열을 방지하여 흡입가스의 양을 증가시키는데 적합한 리니어 압축기의 토출커버 방열구조에 관한 것이다.The present invention relates to a discharge cover heat dissipation structure of a linear compressor, and more particularly, to a discharge cover heat dissipation structure of a linear compressor suitable for preventing overheating of the discharge cover to increase the amount of suction 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 저면에 오일이 채워진 밀폐용기(V)의 내부에 횡방향으로 설치되어 냉매를 흡입하여 압축 및 토출하는 압축 유니트(C)와, 그 압축 유니트(C)의 외부에 고정되어 밀폐용기(V)에 채워진 오일을 펌핑하여 미끄럼부에 공급하는 오일피더(O)로 구성되어 있다.As shown in the drawing, a conventional linear compressor has a compression unit (C) installed in the transverse direction inside an airtight container (V) filled with oil on its bottom surface to suck, compress, and discharge refrigerant, and the compression unit (C). It is composed of an oil feeder (O) which is fixed to the outside of the oil supply to the sliding part by pumping the oil filled in the sealed container (V).
상기 압축 유니트(C)는 밀폐용기(V)의 내부에 설치되는 프레임(1)과, 그 프레임(1)의 중앙에 형성된 관통구멍에 삽입되는 실린더(2)와, 그 실린더(2) 내부에 삽입되어 리니어 모터(미부호)의 구동에 의해 직선 왕복운동하는 피스톤(3)과, 그 피스톤(3)의 왕복운동에 따라 상기 실린더(2)를 개폐하는 토출밸브(4)가 삽입되어 상기한 실린더(3)의 일측에 복개 결합되는 토출커버(10)를 포함하여 이루어져 있다.The compression unit (C) includes a frame (1) installed inside the sealed container (V), a cylinder (2) inserted into a through hole formed in the center of the frame (1), and the inside of the cylinder (2). A piston 3 inserted and linearly reciprocated by driving of a linear motor (unsigned), and a discharge valve 4 for opening and closing the cylinder 2 in accordance with the reciprocating motion of the piston 3 are inserted. It comprises a discharge cover 10 is coupled to one side of the cylinder (3).
상기 토출커버(10)는 도 2에 도시된 바와 같이, 통상 5mm 정도의 두께를 갖는 강판으로 형성되는 것으로, 그 일단에 프레임(1)과 체결되기 위한 플랜지부(11)가 형성되고, 그 플랜지부(11)의 네 모서리에는 프레임(1)에 볼트(미도시)로 체결하기 위한 관통공(11a)이 형성되며, 상기 플랜지부(11)의 중앙이 함몰되어 일정한 체적을 갖는 토출공간부(12)가 형성되며, 그 토출공간부(12)에는 토출밸브(4) 및 토출스프링(5)가 삽입되어 있다.As shown in FIG. 2, the discharge cover 10 is formed of a steel plate having a thickness of about 5 mm, and a flange portion 11 for fastening with the frame 1 is formed at one end thereof. Four corners of the branch 11 are formed with through holes 11a for fastening to the frame 1 with bolts (not shown), and the center of the flange portion 11 is recessed so as to have a discharge volume having a constant volume ( 12 is formed, and a discharge valve 4 and a discharge spring 5 are inserted into the discharge space 12.
도면중 미설명 부호인 1a는 오일유입유로, 1b는 제1 오일포켓, 1c는 오일연통로, 1d는 오일순환로, 1e는 오일배출공, 2a는 오일통공, 3a는 제2 오일포켓이다.In the drawings, reference numeral 1a denotes an oil inflow channel, 1b is a first oil pocket, 1c is an oil communication path, 1d is an oil circulation path, 1e is an oil discharge hole, 2a is an oil hole, and 3a is a second oil pocket.
상기와 같이 구성된 종래 리니어 압축기는 다음과 같이 동작된다.The conventional linear compressor configured as described above is operated as follows.
즉, 상기 리니어 모터(미부호)의 고정자에 전류가 인가되어 가동자가 직선 왕복운동을 하게 되면, 그 가동자에 결합된 피스톤(3)이 실린더(2)내를 왕복운동하게 되고, 그 피스톤(3)이 실린더(2)내를 왕복운동함에 따라 밀폐용기(V)내로 유입된 냉매가스가 실린더(2)로 흡입되어 압축된 이후에 토출커버(10) 및 토출파이프(미도시) 그리고 루프파이프(미도시)를 차례대로 거쳐 외부로 토출되는 일련의 과정을 반복하게 된다.That is, when a current is applied to the stator of the linear motor (unsigned) and the mover linearly reciprocates, the piston 3 coupled to the mover reciprocates in the cylinder 2, and the piston ( 3) As the reciprocating motion inside the cylinder 2, the refrigerant gas introduced into the sealed container V is sucked into the cylinder 2 and compressed, and then the discharge cover 10, the discharge pipe (not shown), and the loop pipe. A series of processes that are discharged to the outside through the (not shown) in sequence is repeated.
한편, 상기 오일피더(O)에서 펌핑되는 오일은 오일유입유로(1a) 및 제1 오일포켓(1b) 그리고 오일통공(2a)을 통해 제2 오일포켓(3a)으로 유입되어 실린더(2)와 피스톤(3) 사이의 미끄럼부를 윤활시킨 다음에 상기 제1 오일포켓(1b)에서 실린더(2)를 냉각시킨 오일과 합쳐져 오일연통로(1c) 및 오일순환로(1d) 그리고 오일배출공(1e)을 통해 밀폐용기(V)로 복귀하게 되는 것이었다.On the other hand, the oil pumped from the oil feeder (O) is introduced into the second oil pocket (3a) through the oil inlet flow path (1a) and the first oil pocket (1b) and the oil through hole (2a) and the cylinder (2) and After lubricating the sliding portion between the piston (3), the first oil pocket (1b) is combined with the oil cooling the cylinder (2), the oil communication path (1c) and oil circulation path (1d) and the oil discharge hole (1e) It was to return to the sealed container (V) through.
그러나, 상기와 같은 종래 토출커버가 구비된 리니어 압축기에 있어서는, 상기 피스톤(3)의 압축행정시 고온의 압축가스가 토출커버(10)의 토출공간부(12)로 유입되어 그 토출커버(10)를 가열시키게 되고, 이 가열된 토출커버(10)가 다시 실린더(2)를 가열시켜 그 실린더(2)의 흡입 및 압축공간(미부호)으로 유입되는 냉매가스의 비체적을 증가시키면서 실질적인 냉매가스의 흡입량을 감소시키게 되며, 이렇게 냉매가스의 흡입량이 감소됨에 따라 전체적인 압축기 효율을 저하시키게 되는 문제점이 있었다.However, in the linear compressor provided with the conventional discharge cover as described above, hot compressed gas flows into the discharge space portion 12 of the discharge cover 10 during the compression stroke of the piston 3, and the discharge cover 10. ) Is heated, and the heated discharge cover 10 heats the cylinder 2 again, increasing the specific volume of the refrigerant gas flowing into the suction and compression space (unsigned) of the cylinder 2, while substantially reducing the refrigerant gas. To reduce the suction amount of, there is a problem that the overall compressor efficiency is reduced as the suction amount of the refrigerant gas is reduced.
따라서, 본 발명은 상기와 같은 종래 리니어 압축기가 가지는 문제점을 감안하여 안출한 것으로, 상기 압축가스에 의해 토출커버가 과열되는 것을 방지하여 냉매가스의 흡입량을 증가시킴에 따라 전체적인 압축기 효율을 향상시킬 수 있는 리니어 압축기의 토출커버 방열구조를 제공하려는데 그 목적이 있다.Therefore, the present invention has been made in view of the problems of the conventional linear compressor as described above, by preventing the discharge cover is overheated by the compressed gas to increase the suction amount of the refrigerant gas can improve the overall compressor efficiency. It is an object of the present invention to provide a heat dissipation structure of a discharge cover of a linear compressor.
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 토출커버를 보인 사시도.Figure 2 is a perspective view showing a discharge cover of a conventional linear compressor.
도 3은 본 발명 토출커버가 장착된 리니어 압축기의 일부를 보인 종단면도.Figure 3 is a longitudinal sectional view showing a part of the linear compressor with a discharge cover of the present invention.
도 4는 본 발명 토출커버의 일례를 보인 사시도.Figure 4 is a perspective view showing an example of the discharge cover of the present invention.
도 5는 본 발명 토출커버의 변형예를 보인 사시도.5 is a perspective view showing a modification of the discharge cover of the present invention.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1 : 프레임 2 : 실린더1: frame 2: cylinder
3 : 피스톤 100,200 : 토출커버3: piston 100,200: discharge cover
110,210 : 플랜지부 120,220 : 토출공간부110,210: flange portion 120,220: discharge space portion
121 : 방열핀 221 : 굴곡면121: heat radiation fin 221: curved surface
이와 같은 본 발명의 목적을 달성하기 위하여, 리니어 모터에 의해 왕복운동을 하면서 냉매가스를 흡입 압축하여 토출시키는 피스톤이 삽입되는 실린더와, 그 실린더의 선단면측에 밸브부재에 의해 차별적으로 연통되도록 부착 고정되어 피스톤에 의해 토출되는 고온의 압축가스가 충진되기 위한 토출공간부가 구비된 토출커버를 포함하여 구성되는 리니어 압축기에 있어서 ; 상기 압축가스에 의해 토출커버로 전달된 열을 용이하게 방출시키기 위하여 상기한 토출공간부의 표면에 방열면적부를 형성하여 이루어지는 것을 특징으로 하는 리니어 압축기의 토출커버 방열구조가 제공된다.In order to achieve the object of the present invention, a cylinder into which a piston for sucking and compressing and discharging refrigerant gas is inserted while reciprocating by a linear motor, and attached to the front end surface side of the cylinder so as to be differentially connected by a valve member. A linear compressor comprising a discharge cover having a discharge space for fixed and filled with hot compressed gas discharged by a piston; The discharge cover heat dissipation structure of the linear compressor is provided by forming a heat dissipation area on the surface of the discharge space in order to easily discharge the heat transferred to the discharge cover by the compressed gas.
이하, 본 발명에 의한 리니어 압축기의 토출커버 방열구조를 첨부도면에 도시된 일실시예에 의거하여 상세하게 설명한다.Hereinafter, the discharge cover heat dissipation structure 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 3은 본 발명 토출커버가 장착된 리니어 압축기의 일부를 보인 종단면도이고, 도 4는 본 발명 토출커버의 일례를 보인 사시도이며, 도 5는 본 발명 토출커버의 변형예를 보인 사시도이다.3 is a longitudinal sectional view showing a part of the linear compressor equipped with the discharge cover of the present invention, Figure 4 is a perspective view showing an example of the discharge cover of the present invention, Figure 5 is a perspective view showing a modification of the discharge cover of the present invention.
이에 도시된 바와 같이 본 발명에 의한 토출커버는, 통상적인 리니어 모터(미부호)에 직선 왕복운동을 하기 위한 피스톤(3)이 삽입되는 실린더(2)의 선단면측에 부착 고정되는 것으로, 상기 토출커버(100)의 일단에는 상기한 실린더(2)와 밀착되어 프레임(1)에 고정시키는 플랜지부(110)가 형성되고, 그 플랜지부(110)의 중앙에는 상기 실린더(2)의 흡입 및 압축공간(미부호)과 토출밸브(4)에 의해 차별적으로 연통되어 피스톤(3)의 압축행정시 토출되는 고온의 압축가스가 충진되기 위한 토출공간부(120)가 소정의 체적을 갖도록 함몰지게 형성되며, 상기 토출공간부(120)의 외표면에는 고온의 압축가스에 의해 전달된 열을 외부로 방출시키기 위하여 다수개의 방열핀(121)이 등간격으로 형성된다.As shown in the drawing, the discharge cover according to the present invention is fixed to a front end surface side of a cylinder 2 into which a piston 3 for linear reciprocating motion is inserted into a conventional linear motor (unsigned). One end of the discharge cover 100 is formed with a flange portion 110 in close contact with the cylinder 2 and fixed to the frame 1, and at the center of the flange portion 110, suction and Differently communicated by the compression space (unsigned) and the discharge valve (4) so that the discharge space 120 for filling the high-pressure compressed gas discharged during the compression stroke of the piston (3) is recessed to have a predetermined volume. A plurality of heat dissipation fins 121 are formed at equal intervals on the outer surface of the discharge space 120 to dissipate heat transferred by the high temperature compressed gas to the outside.
한편, 상기 방열핀을 대신하여 도 5에 도시된 바와 같이 상기한 토출공간부(220)의 내주면 전체가 요철진 굴곡면(221)을 형성할 수도 있다.Meanwhile, as shown in FIG. 5, the entire inner circumferential surface of the discharge space 220 may form the uneven curved surface 221 instead of the heat radiating fins.
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 1a는 오일유입유로, 1b는 제1 오일포켓, 1c는 오일연통로, 1d는 오일순환로, 1e는 오일배출공, 2a는 오일통공, 3a는 제2 오일포켓, 5는 토출스프링, 111 및 211은 볼트체결용 관통공, 200은 토출커버의 변형예, 210은 플랜지부, C는 압축 유니트, O는 오일피더, V는 밀폐용기이다.In the figure, 1a is an oil inflow path, 1b is a first oil pocket, 1c is an oil communication path, 1d is an oil circulation path, 1e is an oil discharge hole, 2a is an oil hole, 3a is a second oil pocket, 5 is Discharge springs, 111 and 211 are bolted through holes, 200 are modified examples of discharge covers, 210 are flange portions, C is a compression unit, O is an oil feeder, and V is a sealed container.
상기와 같은 본 발명의 토출커버가 구비된 리니어 압축기의 일반적인 동작은 종래와 동일하다.The general operation of the linear compressor with a discharge cover of the present invention as described above is the same as in the prior art.
즉, 상기 리니어 모터(미부호)의 고정자에 전류가 인가되어 가동자가 직선 왕복운동을 하게 되면, 그 가동자에 결합된 피스톤(3)이 실린더(2)내를 왕복운동하게 되고, 그 피스톤(3)이 실린더(2)내를 왕복운동함에 따라 밀폐용기(V)내로 유입된 냉매가스가 실린더(2)로 흡입되어 압축된 이후에 토출커버(10) 및 토출파이프(미도시) 그리고 루프파이프(미도시)를 차례대로 거쳐 외부로 토출되는 일련의 과정을 반복하게 된다.That is, when a current is applied to the stator of the linear motor (unsigned) and the mover linearly reciprocates, the piston 3 coupled to the mover reciprocates in the cylinder 2, and the piston ( 3) As the reciprocating motion inside the cylinder 2, the refrigerant gas introduced into the sealed container V is sucked into the cylinder 2 and compressed, and then the discharge cover 10, the discharge pipe (not shown), and the loop pipe. A series of processes that are discharged to the outside through the (not shown) in sequence is repeated.
이때, 상기 토출커버(100,200)의 토출공간부(120,220)로 토출되는 고온의 압축가스는 상기한 토출커버(100,200)에 열을 전달하게 되는데, 상기 토출커버(100,200)의 토출공간부(120,220)의 외표면 또는 내주면에 다수개의 방열핀(121) 또는 굴곡면(221)으로 된 방열면적부가 구비되어 압축가스로부터 전달받은 열을 밀폐용기(V)의 내부로 빠르게 방출시키게 되어 토출커버(100,200)가 과열되지 않도록 함으로써, 그 토출커버(100,200)와 접촉되는 실린더(2)가 가열되는 것을 미연에 방지할 수 있게 된다.At this time, the hot compressed gas discharged to the discharge spaces 120 and 220 of the discharge covers 100 and 200 transfers heat to the discharge covers 100 and 200, and the discharge spaces 120 and 220 of the discharge covers 100 and 200. The outer surface or the inner circumferential surface of the plurality of heat dissipation fins 121 or the curved surface 221 is provided with a heat dissipation area portion is provided to quickly discharge the heat transferred from the compressed gas into the interior of the sealed container (V) discharge cover (100,200) By not overheating, it is possible to prevent the cylinder 2 in contact with the discharge covers 100 and 200 from being heated.
이렇게, 상기 실린더(2)가 가열되는 것을 방지하게 되면, 그 실린더(2)의 흡입 및 압축공간(미부호)으로 흡입되는 냉매가스가 압축행정전에 미리 가열되어 비체적이 증가하는 것을 억제하여 실제 흡입되는 냉매가스의 양을 증가시켜 압축기 효율을 향상시킬 수 있게 되는 것이다.In this way, when the cylinder 2 is prevented from being heated, the refrigerant gas sucked into the suction and compression space (unsigned) of the cylinder 2 is preheated before the compression stroke, thereby suppressing an increase in specific volume, thereby actually inhaling it. It is possible to improve the efficiency of the compressor by increasing the amount of refrigerant gas.
이상에서 설명한 바와 같이 본 발명에 의한 리니어 압축기의 토출커버 방열구조는, 상기 압축가스에 의해 토출커버로 전달된 열을 용이하게 방출시키기 위하여 상기한 토출공간부의 외표면에 다수개의 방열핀을 형성하거나 또는 내주면을 요철지게 형성한 방열면적부를 구비하여 토출커버에 의해 실린더가 가열되는 것을 방지함으로써, 상기 실린더의 흡입 및 압축공간으로 유입되는 흡입가스가 압축전에 미리 가열되지 않도록 하여 실제 흡입되는 냉매가스의 양을 증가시켜 압축기 효율을 향상시킬 수 있다.As described above, in the discharge cover heat dissipation structure of the linear compressor according to the present invention, a plurality of heat dissipation fins are formed on the outer surface of the discharge space in order to easily discharge the heat transferred to the discharge cover by the compressed gas. By providing a heat dissipation area having an uneven inner circumferential surface to prevent the cylinder from being heated by the discharge cover, the amount of refrigerant gas actually sucked in so that the suction gas flowing into the suction and compression space of the cylinder is not heated before compression The compressor efficiency can be improved by increasing
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980048189A KR100273449B1 (en) | 1998-11-11 | 1998-11-11 | Discharge cover radiation structure of a linear compressor |
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| KR1019980048189A KR100273449B1 (en) | 1998-11-11 | 1998-11-11 | Discharge cover radiation structure of a linear compressor |
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| KR101940489B1 (en) * | 2017-09-27 | 2019-01-21 | 엘지전자 주식회사 | Linear compressor |
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| KR101940489B1 (en) * | 2017-09-27 | 2019-01-21 | 엘지전자 주식회사 | Linear compressor |
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