KR100273422B1 - Oil supplier of linear compressor - Google Patents

Oil supplier of linear compressor Download PDF

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Publication number
KR100273422B1
KR100273422B1 KR1019980017010A KR19980017010A KR100273422B1 KR 100273422 B1 KR100273422 B1 KR 100273422B1 KR 1019980017010 A KR1019980017010 A KR 1019980017010A KR 19980017010 A KR19980017010 A KR 19980017010A KR 100273422 B1 KR100273422 B1 KR 100273422B1
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KR
South Korea
Prior art keywords
oil
oil supply
supply pipe
mass body
mass
Prior art date
Application number
KR1019980017010A
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Korean (ko)
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KR19990084941A (en
Inventor
허경범
이형국
Original Assignee
구자홍
엘지전자주식회사
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Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR1019980017010A priority Critical patent/KR100273422B1/en
Priority to DE19921293A priority patent/DE19921293C2/en
Priority to BR9901437A priority patent/BR9901437A/en
Priority to US09/310,784 priority patent/US6220393B1/en
Priority to JP11131559A priority patent/JP3022966B2/en
Publication of KR19990084941A publication Critical patent/KR19990084941A/en
Application granted granted Critical
Publication of KR100273422B1 publication Critical patent/KR100273422B1/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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0261—Hermetic compressors with an auxiliary oil pump
    • 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
    • F04B39/02—Lubrication
    • F04B39/0284—Constructional details, e.g. reservoirs in the casing
    • F04B39/0292—Lubrication of pistons or cylinders
    • 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 oil supplier of linear compressor is provided to improve productivity by making manufacture and assembly of a valve, restricting coming and going of oil, easier. CONSTITUTION: An oil supplier includes an oil supplying pipe(110); a mass body(120); a discharge cover(130); and an oil valve(140). The oil supplying pipe is cylindrically formed and installed on an outer surface of a usual compressor unit(10). The mass body is elastically interposed in the oil supplying pipe and slides to open an oil inlet(111) on an intake stroke of oil and to close the oil inlet on discharge stroke of oil. The discharge cover is installed on an oil outlet(10a) side of the oil supplying pipe and has an oil passage(131) formed to fluidically connect the oil supplying pipe with an oil pocket between a cylinder and a piston of the compressor unit. The oil valve is fixed and installed between the oil passage of the discharge cover and the oil outlet of the oil supplying pipe to close the oil outlet on intake stroke of the mass body and to turn down to open on discharge stroke of the mass body.

Description

리니어 압축기의 오일 공급장치Oil supply of linear compressor

본 발명은 리니어 압축기의 오일 공급장치에 관한 것으로, 특히 제작성 및 가공성이 우수하고 효율이 높은 리니어 압축기의 오일 공급장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil supply device for a linear compressor, and more particularly, to an oil supply device for a linear compressor having excellent manufacturability and processability and high efficiency.

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(또는, 내 외측 라미네이션)(11A)에 실린더(12)가 일체로 결합되고, 상기 리니어 모터(11)의 가동자(또는, 마그네트)(11B)에는 실린더(12)에 유동가능하게 삽입되는 피스톤(13)이 결합되는 것을 포함하여 이루어져 있다.In the compressor unit 10, the cylinder 12 is integrally coupled to the stator (or inner and outer lamination) 11A of the linear motor 11, and the mover (or magnet) of the linear motor 11 ( 11B) includes a piston 13 coupled to the cylinder 12 in a flowable manner.

상기 오일 공급수단(20)은 도 2에 도시된 바와 같이, 압축기 유니트(10)의 저면측에 부착되는 오일공급관(21)과, 그 오일공급관(21)의 입구측에 일체되어 압축기 유니트(10)의 일측에 부착되는 흡입덮개(22)와, 상기 오일공급관(21)의 출구측에 일체되어 압축기 유니트(10)의 타측에 부착되는 토출덮개(23)로 이루어져 있다.As shown in FIG. 2, the oil supply means 20 is integrated with an oil supply pipe 21 attached to the bottom side of the compressor unit 10 and an inlet side of the oil supply pipe 21. Suction cover 22 is attached to one side of the) and the discharge cover 23 is integral to the outlet side of the oil supply pipe 21 and attached to the other side of the compressor unit (10).

상기 오일공급관(21)의 내측에는 압축기 유니트(10)와 함께 왕복운동을 하면서 밀폐용기(C)내의 오일을 흡입 및 토출시키는 질량체(24)와, 그 질량체(24)의 양측단과 오일공급관(21)의 양쪽 내측면 사이에 각각 개재되는 복수개의 압축코일스프링(25A,25B)과, 상기 흡입덮개(22)의 내측면에 개재되어 흡입구(22a)를 개폐하도록 장착되는 흡입밸브(26)와, 상기 질량체(24)의 출구측 단면에 장착되어 오일유로(24a)를 개폐하도록 장착되는 토출밸브(27)로 이루어져 있다.Inside the oil supply pipe 21, a mass body 24 for sucking and discharging oil in the sealed container C while reciprocating with the compressor unit 10, and both ends of the mass body 24 and the oil supply tube 21. A plurality of compression coil springs (25A, 25B) interposed between both inner surfaces of the), the suction valve (26) interposed on the inner surface of the suction cover (22) and mounted to open and close the suction port (22a), It is composed of a discharge valve 27 is mounted on the outlet side end surface of the mass body 24 is mounted to open and close the oil flow path (24a).

상기 흡입밸브(26) 및 토출밸브(27)는 스크롤 형태로 이루어지는 것으로, 그 중앙에 각 개폐부(26a,27a)가 형성되어 있다.The suction valve 26 and the discharge valve 27 are formed in a scroll form, and the opening and closing portions 26a and 27a are formed at the center thereof.

도면중 미설명 부호인 13a는 냉매유로, P는 오일포켓, V는 밸브조립체이다.In the drawings, reference numeral 13a denotes a refrigerant flow path, P is an oil pocket, and V is a valve assembly.

상기와 같은 종래의 리니어 압축기는 다음과 같이 동작된다.The conventional linear compressor as described above is operated as follows.

즉, 리니어 모터에 전류가 인가되면 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(13a)를 통해 실린더(12)의 압축실(미부호)내로 흡입되어 압축된 이후에 토출되는 일련의 과정을 반복하게 된다.That is, when current is applied to the linear motor, the piston 11 reciprocates in the cylinder 12 by the linear reciprocating motion of the mover 11B, and the piston 13 reciprocates in the cylinder 12. As a result, a series of processes in which the refrigerant gas introduced into the sealed container C is sucked into the compression chamber (unsigned) of the cylinder 12 through the refrigerant flow path 13a formed at the center of the piston 13 and then discharged after being compressed Will be repeated.

여기서, 상기 압축기 유니트(10)는 통상 밀폐용기(C)에 유동가능하게 지지되어 리니어 모터(11)와 함께 규칙적으로 진동을 하게 되고, 그 압축기 유니트(10)의 진동에 의해 오일공급수단(20)의 오일공급관(21) 역시 좌우로 왕복운동을 하게 되는데, 이러한 오일공급관(21)의 왕복운동에 반하는 내부의 질량체(24)는 관성력을 발현하게 되어 결국 밀폐용기(C)의 오일이 질량체(24)의 양쪽 압력차에 의해 오일공급관(21)의 내부로 유입되고, 그 오일공급관(21)으로 유입된 오일은 질량체(24)의 오일유로(24a)를 거쳐 오일포켓(P)으로 토출되는 것이었다.Here, the compressor unit 10 is normally supported in a sealed container (C) to be flowable to vibrate regularly with the linear motor 11, the oil supply means 20 by the vibration of the compressor unit (10) The oil supply pipe 21 of the) also reciprocates to the left and right, the mass 24 of the internal contrary to the reciprocating motion of the oil supply pipe 21 expresses an inertial force, so that the oil of the sealed container C is the mass body ( The oil supply pipe 21 is introduced into the oil supply pipe 21 by the pressure difference between the two sides, and the oil introduced into the oil supply pipe 21 is discharged to the oil pocket P through the oil flow path 24a of the mass body 24. Was.

그러나, 상기와 같은 종래 리니어 압축기의 오일 공급장치에 있어서는, 오일의 입출을 규제하는 흡입밸브(26) 및 토출밸브(27)의 크기가 작아 제작 및 조립이 용이하지 못하여 생산성이 저하되는 문제점이 있었다.However, in the oil supply apparatus of the conventional linear compressor as described above, the size of the intake valve 26 and the discharge valve 27 restricting the inflow and outflow of oil is small, so that production and assembly are not easy, and thus productivity is reduced. .

또한, 상기 흡입밸브(26) 및 토출밸브(27)가 질량체(24)를 지지하는 압축코일스프링(25A,25B)에 눌려 고정되어 있으므로, 그 압축코일스프링(25A,25B)에 흡입밸브(26) 및 토출밸브(27)의 개폐부(26a,27a)가 걸려 오일의 입출을 적정하게 규제하지 못하는 문제점도 있었다.In addition, since the suction valve 26 and the discharge valve 27 are pressed and fixed to the compression coil springs 25A and 25B supporting the mass body 24, the suction valve 26 to the compression coil springs 25A and 25B. ) And opening / closing portions 26a and 27a of the discharge valve 27 are not properly regulated.

또한, 상기 질량체(24)는 그 내부에 오일유로(24a)가 형성되어 질량체(24)의 압축력이 감소되므로 인해 결국 오일의 순환량이 감소되는 원인이 되기도 하였다.In addition, since the oil passage 24a is formed inside the mass body 24, the compressive force of the mass body 24 is reduced, thereby causing a decrease in the circulation amount of the oil.

따라서, 본 발명은 상기와 같은 종래 리니어 압축기의 오일 공급장치가 가지는 문제점을 감안하여 안출한 것으로, 오일의 입출을 규제하는 밸브의 제작성 및 조립성을 용이하게 하여 생산성을 향상시킬 수 있는 리니어 압축기의 오일 공급장치를 제공하려는데 본 발명의 목적이 있다.Accordingly, the present invention has been made in view of the problems of the oil supply apparatus of the conventional linear compressor as described above, the linear compressor that can improve the productivity by facilitating the production and assembly of the valve to regulate the oil inlet and outlet It is an object of the present invention to provide an oil supply apparatus of the present invention.

또한, 상기 밸브의 개폐동작중에 그 일부가 여타의 구조물 등에 간섭되지 않도록 하여 오일이 항상 적정량 공급되도록 함으로써, 압축기의 신뢰성이 저하되는 것을 미연에 방지할 수 있는 리니어 압축기의 오일 공급장치를 제공하려는데도 본 발명의 목적이 있다.In addition, to provide an oil supply device of the linear compressor that can prevent the degradation of the reliability of the compressor by preventing the portion of the valve from interfering with other structures, etc. during the opening and closing operation of the valve so that the proper reliability of the compressor. There is an object of the present invention.

또한, 동일한 크기 및 재질의 질량체를 사용하더라도 그 질량체의 압축력을 높여 오일의 순환량을 향상시킬 수 있는 리니어 압축기의 오일 공급장치를 제공하려는데도 본 발명의 목적이 있다.In addition, an object of the present invention is to provide an oil supply apparatus of a linear compressor that can improve the circulation of oil by increasing the compressive force of the mass even if a mass of the same size and material is used.

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 압축기에 있어서, 오일 공급장치를 보인 종단면도.Figure 2 is a longitudinal sectional view showing an oil supply device in a conventional linear compressor.

도 3은 종래 리니어 압축기의 오일 공급장치에서, 각 밸브를 보인 정면도.Figure 3 is a front view showing each valve in the oil supply of the conventional linear compressor.

도 4는 본 발명 리니어 압축기의 오일 공급장치를 보인 종단면도.Figure 4 is a longitudinal sectional view showing an oil supply device of the linear compressor of the present invention.

도 5a 및 도 5b는 본 발명 리니어 압추기의 오일 공급장치에 대한 동작을 보인 종단면도.Figures 5a and 5b is a longitudinal cross-sectional view showing the operation of the oil supply device of the linear pusher of the present invention.

도 6은 본 발명 리니어 압축기의 오일 공급장치에 대한 변형예를 보인 종단면도.Figure 6 is a longitudinal sectional view showing a modification to the oil supply device of the linear compressor of the present invention.

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

10 : 압축기 유니트 10a : 오일토출구10: compressor unit 10a: oil discharge port

110 : 오일공급관 111 : 오일흡입구110: oil supply pipe 111: oil suction port

120 : 질량체 130 : 토출덮개120: mass body 130: discharge cover

131 : 오일유로 140 : 오일밸브131: oil passage 140: oil valve

151,152 : 압축코일스프링151,152: Compression Coil Spring

이와 같은 본 발명의 목적을 달성하기 위하여, 상기 오일밸브를 오일공급관의 출구측 외곽에만 장착시킴은 물론 오일흡입구를 상기한 오일공급관의 미끄럼면, 특히 질량체를 기준으로 오일토출구와 동일측에 형성하여 질량체의 미끄럼 운동시 오일흡입구가 질량체에 막히거나 열리면서 자연스럽게 개폐되도록 하는 리니어 압축기의 오일 공급장치가 제공된다.In order to achieve the object of the present invention, the oil valve is mounted only on the outer side of the outlet side of the oil supply pipe, and the oil suction port is formed on the same side as the oil discharge port on the sliding surface of the oil supply pipe, in particular, the mass body. An oil supply device of a linear compressor is provided which allows the oil inlet to be naturally opened and closed while being blocked or opened by the mass during sliding of the mass.

이하, 본 발명에 의한 리니어 압축기의 오일 공급장치를 첨부도면에 도시된 일실시예에 의거하여 상세하게 설명한다.Hereinafter, the oil supply apparatus of the linear compressor according to the present invention will be described in detail based on the embodiment shown in the accompanying drawings.

도 4는 본 발명 리니어 압축기의 오일 공급장치를 보인 종단면도이고, 도 5a 및 도 5b는 본 발명 리니어 압추기의 오일 공급장치에 대한 동작을 보인 종단면도이며, 도 6은 본 발명 리니어 압축기의 오일 공급장치에 대한 변형예를 보인 종단면도이다.Figure 4 is a longitudinal sectional view showing the oil supply device of the linear compressor of the present invention, Figures 5a and 5b is a longitudinal sectional view showing the operation of the oil supply device of the linear presser of the present invention, Figure 6 is an oil of the linear compressor of the present invention Longitudinal sectional drawing which shows the modified example of a supply apparatus.

이에 도시된 바와 같이 본 발명에 의한 리니어 압축기의 오일 공급장치는, 통상적인 압축기 유니트(10)의 외곽에 원통형으로 형성되어 장착되는 오일공급관(110)과, 그 오일공급관(110)의 내부에서 탄력적으로 개재되어 오일의 흡입행정시 오일흡입구(111)를 개방하는 반면 오일의 토출행정시 오일흡입구(111)를 폐쇄하도록 미끄러지는 질량체(120)와, 상기 오일공급관(110)의 오일토출구(10a)측에 장착되어 오일공급관(110)을 압축기 유니트(10)의 실린더(미도시)와 피스톤(미도시)간의 오일포켓(P)으로 연통시키도록 오일유로(131)가 형성되는 토출덮개(130)와, 그 토출덮개(130)의 오일유로(131)와 오일공급관(110)의 오일토출구(10a) 사이에 고정 장착되어 질량체(120)의 흡입행정시 오일공급관(110)의 오일토출구(10a)를 막았다가 질량체(120)의 토출행정시 젖혀져 열리는 오일밸브(140)를 포함하여 구성된다.As shown therein, the oil supply apparatus of the linear compressor according to the present invention includes an oil supply pipe 110 which is formed and mounted in a cylindrical shape on the outer side of a conventional compressor unit 10, and is elastic in the oil supply pipe 110. The mass body 120 sliding to close the oil inlet 111 when the oil is stroked, while closing the oil inlet 111 when the oil is stroked, and the oil outlet 10a of the oil supply pipe 110. The discharge cover 130 is mounted on the side and the oil passage 131 is formed to communicate the oil supply pipe 110 to the oil pocket (P) between the cylinder (not shown) and the piston (not shown) of the compressor unit 10 And, it is fixedly mounted between the oil passage 131 of the discharge cover 130 and the oil discharge port (10a) of the oil supply pipe 110, the oil discharge port (10a) of the oil supply pipe 110 during the suction stroke of the mass body 120 To prevent the opening of the mass body 120 from turning It is configured to include one valve 140.

상기 오일공급관(110)은 전술한 바와 같이 원통형이며, 그 내부에 삽입되는 질량체(120)의 왕복운동에 따라 개폐되도록 질량체(120)의 미끄럼면에 오일흡입구(111)가 형성되는 반면 오일토출구(10a)는 일측면, 즉 토출덮개(130)측에 형성된다.The oil supply pipe 110 is cylindrical as described above, while the oil suction port 111 is formed on the sliding surface of the mass body 120 so as to be opened and closed according to the reciprocating motion of the mass body 120 inserted therein. 10a) is formed on one side, that is, the discharge cover 130 side.

상기 질량체(120)는 그 사체적을 최소화하여 오일의 순환량을 최대한으로 늘릴 수 있도록 오일공급관(110)의 내주면에 외주면이 미끄럼 접촉되는 봉형으로 형성되는 것이 바람직하다.The mass 120 is preferably formed in a rod shape in which the outer circumferential surface is in sliding contact with the inner circumferential surface of the oil supply pipe 110 so as to minimize the dead volume to maximize the circulation of oil.

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 151 및 152는 압축코일스프링이다.Reference numerals 151 and 152 in the drawings denote compression coil springs.

상기와 같은 본 발명의 오일 공급장치가 구비된 리니어 압축기의 기본동작은 종래와 동일하다.The basic operation of the linear compressor provided with the oil supply device of the present invention as described above is the same as in the prior art.

즉, 압축기 유니트(10)의 리니어 모터(도 1에 도시)(11)에 전류가 인가되면 가동자(11B)와 함께 피스톤(도 1에 도시)(13)이 실린더(도 1에 도시)(12)내를 왕복운동하게 되고, 그 피스톤(13)이 실린더(12)내를 왕복운동함에 따라 밀폐용기(C)내로 유입된 냉매가스가 피스톤(13) 중심에 형성된 냉매유로를 통해 실린더(12)의 압축실(미부호)내로 흡입되어 압축된 이후에 토출되는 일련의 과정을 반복하게 된다.That is, when a current is applied to the linear motor (shown in FIG. 1) 11 of the compressor unit 10, the piston (shown in FIG. 1) 13 together with the mover 11B (the cylinder shown in FIG. 1) ( 12, the piston 13 is reciprocated in the cylinder 12, the refrigerant gas introduced into the closed container (C) as the piston 13 reciprocates in the cylinder 12 through the refrigerant passage formed in the center of the piston (12) A series of processes that are sucked into the compression chamber (unsigned) of the N) and discharged after being compressed are repeated.

이때, 상기 압축기 유니트(10)의 진동에 의해 오일공급관(110) 역시 진동하면서 밀폐용기(C)내의 오일을 흡입하여 실린더(12)와 피스톤(13) 사이의 미끄럼부에 공급하게 되는 것이다.At this time, the oil supply pipe 110 is also vibrated by the vibration of the compressor unit 10 while sucking the oil in the sealed container (C) to supply to the sliding portion between the cylinder 12 and the piston (13).

여기서, 상기 오일공급관(110)이 도 5a의 "A" 방향으로 이동을 하게 되면, 그 오일공급관(110)의 내부에 개재된 질량체(120)는 그 반대방향으로의 관성력을 갖게 되어 오일밸브(140)가 오일공급관(110)쪽으로 끌려 오일토출구(10a)를 닫는 반면, 상기 질량체(120)가 오일토출구(10a)의 타측으로 밀려나면서 오일흡입구(111)가 개방되어 밀폐용기의 오일이 오일공급관(110)의 내부로 흡입된다.Here, when the oil supply pipe 110 is moved in the direction "A" of FIG. 5A, the mass body 120 interposed in the oil supply pipe 110 has an inertial force in the opposite direction, so that the oil valve ( While 140 is pulled toward the oil supply pipe 110 to close the oil discharge port 10a, the mass body 120 is pushed to the other side of the oil discharge port 10a and the oil suction port 111 is opened, so that the oil in the sealed container is supplied to the oil supply pipe. It is sucked into the interior of 110.

한편, 상기 오일공급통(110)이 도 5b의 "B" 방향으로 이동하게 되는 경우에는, 그 오일공급관(110)의 내부에 개재된 질량체(120)가 도 5a에서의 반대방향으로 관성력을 갖게 되어 오일공급관(110)의 오일흡입구(111)로 유입된 오일을 밀어내게 되고, 그 밀려나는 오일에 의해 오일밸브(140)가 젖혀지면서 오일토출구(10a)가 열리게 되는 반면, 상기 질량체(120)가 오일토출구(10a)측으로 미끄러져 이동하면서 오일흡입구(111)를 막게 된다.On the other hand, when the oil supply cylinder 110 is moved in the "B" direction of Figure 5b, the mass body 120 interposed inside the oil supply pipe 110 has an inertial force in the opposite direction in Figure 5a And pushes the oil introduced into the oil inlet 111 of the oil supply pipe 110, while the oil valve 140 is opened by the oil that is pushed out so that the oil outlet 10a is opened, the mass body 120. The oil suction port 111 is blocked while sliding toward the oil discharge port 10a.

본 발명에 의한 리니어 압축기의 오일 공급장치에 대한 변형예가 있는 경우는 도 6에 도시된 바와 같다.If there is a modification to the oil supply device of the linear compressor according to the present invention is as shown in FIG.

즉, 전술한 일례에서는 오일공급관(110)이 원통형으로 형성되고, 그 일측에 오일흡입구(111) 및 오일토출구(10a)가 질량체(120)를 기준으로 어느 한쪽에 형성되고, 그 중에서도 오일흡입구(111)는 오일공급관(110)의 내부에서 미끄럼운동을 하는 질량체(120)에 의해 개폐되도록 미끄럼면에 형성되는 것이었으나, 본 변형예에서는 상기 오일공급관(210)이 복수개 이상의 환형으로 형성되어 질량체(220)가 각 내주면에서 탄력적으로 미끄럼운동을 할 수 있도록 나란하게 조합되고, 상기 질량체(220)의 양단에는 각각 탄성부재가 장착되는데, 그 중 오일토출구(10a)측은 압축코일스프링(231)이 그리고 반대측은 압축기 유니트(10)에 결합되는 판스프링(232)이 각각 장착된다.That is, in the above-described example, the oil supply pipe 110 is formed in a cylindrical shape, and an oil suction port 111 and an oil discharge port 10a are formed on either side of the mass body 120 on one side thereof, and an oil suction port ( 111 was formed on the sliding surface so as to be opened and closed by the mass body 120 that slides in the oil supply pipe 110, in the present modification, the oil supply pipe 210 is formed in a plurality of annular or more mass ( 220 is combined side by side so as to be elastically sliding on each inner circumferential surface, the elastic member is mounted on both ends of the mass body 220, of which the oil discharge port (10a) is the compression coil spring 231 and The opposite side is mounted with leaf springs 232 coupled to the compressor unit 10, respectively.

이러한, 본 변형예에의 동작은 전술한 일례에서와 대동소이하다.This operation in the present modification is almost the same as in the foregoing example.

이와 같은 본 발명의 오일 공급장치에서는 오일밸브가 하나일 뿐만 아니라 오일공급관의 외곽에 장착하므로 전체적인 조립성이 용이해지는 것은 물론, 질량체에 의한 오일공급관의 사체적이 최소한으로 줄어들어 오일의 순환량이 최대가 되는 것이다.In the oil supply device of the present invention as described above, not only one oil valve is installed on the outer side of the oil supply pipe, so that the overall assembly is easy, and the volume of the oil supply pipe by the mass is reduced to a minimum, thereby maximizing the oil circulation. will be.

이상에서 설명한 바와 같이 본 발명에 의한 리니어 압축기의 오일 공급장치는, 상기 오일밸브를 오일공급관의 출구측 외곽에만 장착시킴은 물론 질량체의 미끄럼 운동시 오일흡입구가 질량체에 막히거나 열리면서 자연스럽게 개폐되도록 오일흡입구를 상기한 오일공급관의 미끄럼면, 특히 질량체를 기준으로 오일토출구와 동일측에 배치되도록 형성하여 구성함으로써, 오일의 입출을 규제하는 밸브의 제작성 및 조립성을 용이하게 하여 생산성이 향상됨은 물론, 상기 밸브의 개폐동작중에 그 일부가 여타의 구조물 등에 간섭되지 않도록 하여 압축기의 신뢰성이 저하되는 것을 미연에 방지하고, 오일의 순환량을 향상시킬 수 있다.As described above, in the oil supply device of the linear compressor according to the present invention, the oil inlet port is mounted on the outlet side of the oil supply pipe only, and the oil inlet port is naturally opened and closed while the oil inlet is blocked or opened during the sliding movement of the mass body. By forming and configured to be disposed on the same side as the oil discharge port on the sliding surface of the oil supply pipe, in particular the mass body, to facilitate the manufacturability and assembly of the valve regulating the entry and exit of oil, as well as the productivity is improved, During the opening and closing operation of the valve, it is possible to prevent a part of the structure from interfering with other structures and the like, thereby preventing the reliability of the compressor from being lowered and improving the amount of oil circulating.

Claims (3)

통상적인 압축기 유니트의 외곽에 원통형으로 형성되어 장착되는 오일공급관과, 그 오일공급관의 내부에서 탄력적으로 개재되어 오일의 흡입행정시 오일흡입구를 개방하는 반면 오일의 토출행정시 오일흡입구를 폐쇄하도록 미끄러지는 질량체와, 상기 오일공급관의 오일토출구측에 장착되어 오일공급관을 압축기 유니트의 실린더와 피스톤간의 오일포켓으로 연통시키도록 오일유로가 형성되는 토출덮개와, 그 토출덮개의 오일유로와 오일공급관의 오일토출구 사이에 고정 장착되어 질량체의 흡입행정시 오일공급관의 오일토출구를 막았다가 질량체의 토출행정시 젖혀져 열리는 오일밸브를 포함하여 구성되는 것을 특징으로 하는 리니어 압축기의 오일 공급장치.The oil supply pipe is formed in a cylindrical shape on the outside of the conventional compressor unit, and is resiliently interposed inside the oil supply pipe to open the oil inlet when the oil is stroked while sliding to close the oil inlet when the oil is stroked. A discharge cover which is attached to the mass body and the oil discharge port side of the oil supply pipe so as to communicate the oil supply pipe with the oil pocket between the cylinder and the piston of the compressor unit, the oil path of the discharge cover and the oil discharge port of the oil supply pipe. An oil supply device for a linear compressor, comprising an oil valve fixedly mounted therebetween to block an oil outlet of an oil supply pipe during an intake stroke of a mass and to be opened up when an outlet of the mass is discharged. 제1항에 있어서, 상기 오일공급관은 복수개 이상의 환형으로 형성되어 질량체가 미끄럼운동을 할 수 있도록 나란하게 조합되는 것을 특징으로 하는 리니어 압축기의 오일 공급장치.The oil supply apparatus of claim 1, wherein the oil supply pipe is formed in a plurality of annular shapes and combined side by side so that the mass can slide. 제1항에 있어서, 상기 질량체는 오일공급관의 내주면에 그 외주면이 미끄럼 접촉되는 봉형인 것을 특징으로 하는 리니어 압축기의 오일 공급장치.2. The oil supply apparatus of the linear compressor according to claim 1, wherein the mass is a rod shape in which the outer circumferential surface thereof is in sliding contact with the inner circumferential surface of the oil supply pipe.
KR1019980017010A 1998-05-12 1998-05-12 Oil supplier of linear compressor KR100273422B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1019980017010A KR100273422B1 (en) 1998-05-12 1998-05-12 Oil supplier of linear compressor
DE19921293A DE19921293C2 (en) 1998-05-12 1999-05-07 Oil supply device for a linear compressor
BR9901437A BR9901437A (en) 1998-05-12 1999-05-11 Oil supply device for linear compressor.
US09/310,784 US6220393B1 (en) 1998-05-12 1999-05-12 Oil supply apparatus for linear compressor
JP11131559A JP3022966B2 (en) 1998-05-12 1999-05-12 Oil supply device for linear compressor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010081660A (en) * 2000-02-17 2001-08-29 구자홍 Apparatus for applying oil of linear compressor

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KR100524723B1 (en) * 2003-08-11 2005-10-31 엘지전자 주식회사 Oil supply apparatus for reciprocating compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010081660A (en) * 2000-02-17 2001-08-29 구자홍 Apparatus for applying oil of linear compressor

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