KR20050029397A - Cylinder cooling structure for reciprocating compressor - Google Patents

Cylinder cooling structure for reciprocating compressor Download PDF

Info

Publication number
KR20050029397A
KR20050029397A KR1020030065649A KR20030065649A KR20050029397A KR 20050029397 A KR20050029397 A KR 20050029397A KR 1020030065649 A KR1020030065649 A KR 1020030065649A KR 20030065649 A KR20030065649 A KR 20030065649A KR 20050029397 A KR20050029397 A KR 20050029397A
Authority
KR
South Korea
Prior art keywords
lubricating oil
cylinder
reciprocating
mover
frame
Prior art date
Application number
KR1020030065649A
Other languages
Korean (ko)
Other versions
KR100548442B1 (en
Inventor
안상욱
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020030065649A priority Critical patent/KR100548442B1/en
Publication of KR20050029397A publication Critical patent/KR20050029397A/en
Application granted granted Critical
Publication of KR100548442B1 publication Critical patent/KR100548442B1/en

Links

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
    • 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
    • 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
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • 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
    • F04B39/0238—Hermetic compressors with oil distribution channels
    • 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
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/0276—Lubrication characterised by the compressor type the pump being of the reciprocating piston type, e.g. oscillating, free-piston compressors

Landscapes

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

Abstract

A cylinder cooling structure for a reciprocating compressor is provided to improve the cooling power of a compressor by decreasing the temperature of a compressing space by quickly cooling frictional heat between a cylinder and a piston. A reciprocating motor has a mover reciprocating in a straight line. A cylinder(41) is fixed at a frame(21) together with the reciprocating motor. A piston is slidably inserted into an inner peripheral surface of the cylinder and is combined with the mover of the reciprocating motor for compressing refrigerant gas while reciprocating in a straight line. A plurality of resonance springs elastically support the front and the back of a connecting part connecting the mover with the piston for inducing resonance movement of the mover and the piston. A lubricating oil pumping unit pumps lubricating oil of a casing inside while vibrating with the frame. A lubricating oil supply passage part is formed at a frame unit to be connected with the lubricating oil pumping unit to supply lubricating oil to a sliding part of a compressing unit. A plurality of lubricating oil containing grooves(41a) are depressed at an outer peripheral surface of the cylinder forming a part of the lubricating oil supply passage part together with the frame.

Description

왕복동식 압축기의 실린더 냉각 구조{CYLINDER COOLING STRUCTURE FOR RECIPROCATING COMPRESSOR}CYLINDER COOLING STRUCTURE FOR RECIPROCATING COMPRESSOR}

본 발명은 왕복동식 압축기에서 실린더의 냉각 기술에 관한 것으로, 특히 압축공간에 근접한 실린더의 외주면을 홈파기 형성하여 실린더 두께를 줄인 왕복동식 압축기의 실린더 냉각 구조에 관한 것이다.The present invention relates to a cooling technology of a cylinder in a reciprocating compressor, and more particularly, to a cylinder cooling structure of a reciprocating compressor in which a cylinder thickness is reduced by grooving an outer circumferential surface of a cylinder adjacent to a compression space.

일반적으로 왕복동식 압축기는 피스톤이 선형으로 움직이면서 가스를 흡입 압축하는 것으로, 이러한 왕복동식 압축기는 크게 구동모터의 회전운동을 피스톤의 왕복운동으로 전환시켜 가스를 흡입 압축하는 방식과 구동모터가 직선으로 왕복운동을 하면서 피스톤을 왕복운동시켜 가스를 흡입 압축하는 방식이 있다.In general, a reciprocating compressor sucks and compresses gas while the piston moves linearly. Such a reciprocating compressor converts the rotational motion of the drive motor into a reciprocating motion of the piston and sucks and compresses the gas. There is a way to inhale and compress the gas by reciprocating the piston during the movement.

도 1은 후자에 속하는 종래 왕복동식 압축기의 일례를 보인 종단면도로서, 이에 도시한 바와 같이 종래의 왕복동식 압축기는 저면에 일정량의 윤활유를 채우고 가스흡입관(SP) 및 가스토출관(DP)을 연통 설치하는 케이싱(10)과, 케이싱(10)의 내부에 탄력적으로 설치하는 프레임유니트(20)와, 프레임유니트(20)에 고정하여 가동자(33)가 직선으로 왕복운동을 하는 왕복동모터(30)와, 왕복동모터(30)의 가동자(33)에 결합하여 상기한 프레임유니트(20)로 지지하는 압축유니트(40)와, 왕복동모터(30)의 가동자(33)를 운동방향으로 탄력 지지하여 공진운동을 유도하는 공진스프링유니트(50)와, 프레임유니트(20)에 장착하여 케이싱(10)의 윤활유를 압축유니트(40)의 미끄럼부로 공급하는 윤활유 공급유니트(60)로 구성하고 있다.1 is a longitudinal sectional view showing an example of a conventional reciprocating compressor belonging to the latter, as shown in the conventional reciprocating compressor is filled with a certain amount of lubricating oil on the bottom surface and the gas suction pipe (SP) and gas discharge pipe (DP) communication; A casing 10 to be installed, a frame unit 20 elastically installed in the casing 10, and a reciprocating motor 30 fixed to the frame unit 20 so that the mover 33 reciprocates in a straight line. ), The compression unit 40 coupled to the mover 33 of the reciprocating motor 30 and supported by the frame unit 20, and the mover 33 of the reciprocating motor 30 are elastic in the movement direction. It is composed of a resonant spring unit (50) for supporting and inducing resonant motion, and a lubricating oil supply unit (60) which is mounted to the frame unit (20) and supplies lubricant of the casing (10) to the sliding part of the compression unit (40). .

프레임유니트(20)는 압축유니트(40)를 지지하고 왕복동모터(30)의 전방측을 지지하는 전방프레임(21)과, 전방프레임(21)에 결합하여 왕복동모터(30)의 후방측을 지지하는 중간프레임(22)과, 중간프레임(22)에 결합하여 후술할 후방측 공진스프링(53)을 지지하는 후방프레임(23)으로 이루어져 있다.The frame unit 20 supports the compression unit 40 and the front frame 21 supporting the front side of the reciprocating motor 30, and is coupled to the front frame 21 to support the rear side of the reciprocating motor 30. The intermediate frame 22 and the rear frame 23 is coupled to the intermediate frame 22 to support the rear resonance spring 53 to be described later.

왕복동모터(30)는 전방프레임(21)과 중간프레임(22) 사이에 설치하는 외측고정자(31)와, 외측고정자(31)와 일정 간격을 두고 전방프레임(21)에 결합하는 내측고정자(32)와, 외측고정자(31)와 내측고정자(32) 사이에 설치하여 직선으로 왕복운동을 하는 가동자(33)로 이루어져 있다.The reciprocating motor 30 has an outer stator 31 installed between the front frame 21 and the intermediate frame 22, and an inner stator 32 coupled to the front frame 21 at a predetermined distance from the outer stator 31. ) And a movable element 33 provided between the outer stator 31 and the inner stator 32 to reciprocate in a straight line.

압축유니트(40)는 전방프레임(21)에 삽입 결합하는 실린더(41)와, 왕복동모터(30)의 가동자(33)에 결합하여 실린더(41)의 압축공간(P)에서 왕복운동을 하는 피스톤(42)과, 피스톤(42)의 선단에 장착하여 그 피스톤(42)의 흡입유로(F)를 개폐하면서 냉매가스의 흡입을 제한하는 흡입밸브(43)와, 실린더(41)의 토출측에 장착하여 압축공간(P)을 개폐하면서 압축가스의 토출을 제한하는 토출밸브 조립체(44)로 이루어져 있다.Compression unit 40 is coupled to the cylinder 41 to the front frame 21 and coupled to the mover 33 of the reciprocating motor 30 to reciprocate in the compression space (P) of the cylinder 41 On the inlet valve 43 and the discharge side of the cylinder 41, which are attached to the piston 42 and the tip of the piston 42 to restrict the intake of the refrigerant gas while opening and closing the inlet flow path F of the piston 42. It is composed of a discharge valve assembly 44 to limit the discharge of the compressed gas while opening and closing the compression space (P).

공진스프링유니트(50)는 가동자(33)와 피스톤(42)의 연결부에 결합하는 스프링 지지대(51)와, 스프링 지지대(51)를 중심으로 전방측을 지지하는 전방측 공진스프링(52)과, 스프링 지지대(51)의 후방측을 지지하는 후방측 공진스프링(53)으로 이루어져 있다.The resonant spring unit 50 includes a spring support 51 coupled to the connecting portion of the mover 33 and the piston 42, and a front resonant spring 52 supporting the front side around the spring support 51. , The rear side resonant spring 53 supporting the rear side of the spring support 51.

윤활유 공급유니트(60)는 프레임유니트(20)의 하반부에 장착하여 그 프레임유니트(40)와 함께 진동하면서 케이싱(10)의 윤활유를 펌핑하는 윤활유 펌핑부(61)와, 윤활유 펌핑부(61)의 출구측과 압축유니트(40)를 연통하도록 상기한 프레임유니트(20)에 형성하는 윤활유 공급유로부(62)로 이루어져 있다.The lubricating oil supply unit 60 is mounted on the lower half of the frame unit 20 and vibrates with the frame unit 40 to pump the lubricating oil of the casing 10 and the lubricating oil pumping unit 61. It consists of a lubricating oil supply passage 62 formed in the frame unit 20 so as to communicate the outlet side of the compression unit 40 with.

윤활유 공급유로부(62)는 윤활유 펌핑부(61)의 출구측과 연통하여 전방프레임(21)에 형성하는 윤활유흡입로(62a)와, 윤활유흡입로(62a)에 연통하여 전방프레임(21)의 실린더구멍 내주면에 음형지게 환형으로 형성하는 제1 윤활유포켓(62b)과, 제1 윤활유포켓(62b)에 연통하여 실린더(41)에 관통 형성하는 윤활유연통구(62c)와, 윤활유연통구(62c)에 연통하여 일정량의 윤활유를 채우도록 피스톤(42)의 외주면에 음형지게 형성하는 제2 윤활유포켓(62d)과, 제1 윤활유포켓(62b)의 상반부에 연통하여 전방프레임(21)의 상반부로 케이싱(10)을 향해 관통 형성하는 윤활유토출로(62e)로 이루어져 있다.The lubricating oil supply passage part 62 communicates with the outlet side of the lubricating oil pumping part 61 and the lubricating oil suction path 62a formed in the front frame 21 and the lubricating oil suction path 62a to communicate with the front frame 21. The first lubricating oil pocket 62b which is annularly annularly formed on the inner circumferential surface of the cylinder hole of the cylinder, the lubricating oil communicating port 62c communicating with the first lubricating oil pocket 62b and penetrating the cylinder 41; The upper half of the front frame 21 communicates with the upper half of the second lube oil pocket 62d and the first lube oil pocket 62b, which are formed to be negatively formed on the outer circumferential surface of the piston 42 so as to be in communication with 62c. It consists of a lubricating oil discharge path 62e which penetrates toward the furnace casing 10.

도면중 미설명 부호인 21a는 실린더구멍이다.Reference numeral 21a in the drawing indicates a cylinder hole.

상기와 같은 종래 왕복동식 압축기는 다음과 같이 동작한다.The conventional reciprocating compressor as described above operates as follows.

즉, 왕복동모터(30)에 전원을 인가하여 외측고정자(31)와 내측고정자(32) 사이에 플럭스(flux)를 형성하면, 그 외측고정자(31)와 내측고정자(32) 사이의 공극에 놓인 가동자(33)가 플럭스의 방향에 따라 움직이면서 공진스프링유니트(50)에 의해 지속적으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 왕복운동을 하면서 압축공간(P)의 체적이 변화하여 냉매가스를 압축공간으로 흡입 압축하였다가 토출하는 일련의 과정을 반복한다.That is, when a flux is formed between the outer stator 31 and the inner stator 32 by applying power to the reciprocating motor 30, the gap between the outer stator 31 and the inner stator 32 lies in the gap. As the mover 33 moves in the direction of the flux, the resonant spring unit 50 continuously reciprocates, and the piston 42 reciprocates in the cylinder 41 while the compression space P The volume of is changed, so that the refrigerant gas is sucked into the compression space and then discharged.

이때, 피스톤(42)의 왕복운동에 의한 진동으로 윤활유 펌핑부(61)에 의해 케이싱(10)의 윤활유를 펌핑하고, 이 윤활유는 윤활유 공급유로부(62)의 윤활유흡입로(62a)를 통해 제1 윤활유포켓(62b)과 윤활유연통구(62c)와 제2 윤활유포켓(62d)으로 유입하면서 피스톤(42)과 실린더(41) 사이의 미끄럼부를 윤활하는 한편 제1 윤활유포켓(62b)의 내부를 통과하는 윤활유가 실린더(41)를 통해 전달되는 피스톤(42)과의 마찰열을 냉각한다.At this time, the lubricating oil of the casing 10 is pumped by the lubricating oil pumping unit 61 by the vibration caused by the reciprocating motion of the piston 42, and the lubricating oil is supplied through the lubricating oil suction passage 62a of the lubricating oil supply passage 62. While flowing into the first lube oil pocket 62b, the lube oil communication port 62c, and the second lube oil pocket 62d, the slide between the piston 42 and the cylinder 41 is lubricated and the inside of the first lube oil pocket 62b. Lubricant oil passing through cools the heat of friction with the piston (42) delivered through the cylinder (41).

이후, 피스톤(42)과 실린더(41) 사이를 윤활한 윤활유는 다시 윤활유연통구(62c)와 제1 윤활유포켓(62b)을 거친후 윤활유토출로(62e)를 통해 케이싱(10)으로 비산되면서 회수되는 것이었다.Subsequently, the lubricating oil lubricated between the piston 42 and the cylinder 41 passes through the lubricating oil communication port 62c and the first lubricating oil pocket 62b and then scatters into the casing 10 through the lubricating oil discharge path 62e. It was to be recovered.

그러나, 상기와 같은 종래 왕복동식 압축기에 있어서는, 도 2에서와 같이 실린더(41)의 두께(t1)를 동일하게 형성함에 따라 제1 윤활유포켓(62b)으로 유입된 윤활유를 이용하여 실린더(41)와 피스톤(42) 사이의 마찰열을 원활하게 방열하지 못하게 되고, 이로 인해 압축공간(P)이 과열되어 냉매가스의 흡입량이 감소하면서 전체적으로 압축기의 냉력이 저하하는 문제점이 있었다.However, in the conventional reciprocating compressor as described above, as shown in FIG. 2, the cylinder 41 is formed by using the lubricating oil introduced into the first lubricating oil pocket 62b by forming the same thickness t1 of the cylinder 41. The frictional heat between the piston 42 and the piston 42 may not be smoothly radiated. As a result, the compression space P may be overheated, thereby reducing the suction amount of the refrigerant gas and reducing the cooling power of the compressor as a whole.

본 발명은 상기와 같은 종래 왕복동식 압축기가 가지는 문제점을 감안하여 안출한 것으로, 실린더와 피스톤 사이의 마찰열을 보다 신속하게 냉각시켜 압축기의 냉력을 높일 수 있는 왕복동식 압축기의 실린더 냉각 구조를 제공하려는데 본 발명의 목적이 있다.The present invention has been made in view of the problems of the conventional reciprocating compressor as described above, to provide a cylinder cooling structure of the reciprocating compressor that can cool the frictional heat between the cylinder and the piston more quickly to increase the cooling power of the compressor. There is an object of the invention.

본 발명의 목적을 달성하기 위하여, 가동자가 직선으로 왕복운동을 하는 왕복동모터와, 왕복동모터와 함께 상기 프레임에 고정하는 실린더와, 실린더의 내주면에 미끄러지게 삽입하고 상기 왕복동모터의 가동자에 결합하여 직선 왕복운동을 하면서 냉매가스를 압축하는 피스톤과, 왕복동모터의 가동자와 피스톤을 연결하는 연결부의 전후 양측을 탄력 지지하여 상기 가동자와 피스톤의 공진운동을 유도하는 복수 개의 공진스프링과, 프레임과 함께 진동하면서 케이싱 내의 윤활유를 펌핑하는 윤활유 펌핑부와, 윤활유 펌핑부에 연결하여 윤활유를 압축유니트의 미끄럼부로 공급하도록 프레임유니트에 형성하는 윤활유 공급유로부를 포함한 왕복동식 압축기에 있어서, 프레임과 함께 윤활유 공급유로부의 일부를 이루는 실린더의 외주면에 적어도 한 개 이상의 윤활유수용홈을 음형지게 형성하는 왕복동식 압축기의 실린더 냉각 구조를 제공한다.In order to achieve the object of the present invention, a reciprocating motor in which the mover linearly reciprocates, a cylinder fixed to the frame together with the reciprocating motor, slides into the inner circumferential surface of the cylinder and is coupled to the mover of the reciprocating motor A piston for compressing the refrigerant gas while performing a linear reciprocating motion, a plurality of resonant springs for elastically supporting the front and rear sides of the connecting portion connecting the mover and the piston of the reciprocating motor to induce the resonant motion of the mover and the piston; A reciprocating compressor including a lubricating oil pumping part for pumping lubricating oil in a casing while vibrating together, and a lubricating oil supplying passage part which is connected to the lubricating oil pumping part and forms a lubricating oil in a frame unit to supply lubricating oil to a sliding part of a compression unit. At least one on the outer circumferential surface of the cylinder forming part of the flow path portion Provided is a cylinder cooling structure of a reciprocating compressor that negatively forms two or more lube oil receiving grooves.

또, 상기 실린더의 외주면이나 윤활유수용홈의 주면에 윤활유와의 접촉면적을 확대하기 위한 적어도 한 개 이상의 윤활유접촉핀을 양형지게 형성하는 것을 특징으로 하는 왕복동식 압축기의 실린더 냉각 구조를 제공한다.Further, there is provided a cylinder cooling structure of a reciprocating compressor, characterized in that the at least one lubricating oil contact pin is formed on the outer circumferential surface of the cylinder or the main surface of the lubricating oil receiving groove to enlarge the contact area with the lubricating oil.

이하, 본 발명에 의한 왕복동식 압축기의 실린더 냉각 구조를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the cylinder cooling structure of the reciprocating compressor by this invention is demonstrated in detail based on one Example shown in an accompanying drawing.

도 3은 본 발명 왕복동식 압축기의 일례를 보인 단면도이고, 도 4는 본 발명 왕복동식 압축기에서 실린더를 보인 측면도이며, 도 5는 도 4의 "Ⅰ-Ⅰ"선단면도이고, 도 6은 본 발명 왕복동식 압축기에서 실린더의 변형예를 보인 측면도이다.Figure 3 is a cross-sectional view showing an example of the reciprocating compressor of the present invention, Figure 4 is a side view showing a cylinder in the reciprocating compressor of the present invention, Figure 5 is a "I-I" sectional view of Figure 4, Figure 6 is the present invention Side view showing a modification of the cylinder in the reciprocating compressor.

이에 도시한 바와 같이 본 발명에 의한 왕복동식 압축기는, 케이싱(10)의 내부에 탄력 설치하는 프레임유니트(20)와, 이 프레임유니트(20)에 고정하는 왕복동모터(30)와, 이 왕복동모터(30)와 함께 왕복운동을 하면서 냉매가스를 압축하는 압축유니트(40)와, 이 압축유니트(40)의 공진운동을 유지하는 공진스프링유니트(50)와, 프레임유니트(20)에 설치하여 케이싱(10) 내의 윤활유를 압축유니트(40)로 펌핑하여 직접 케이싱(10)으로 회수하는 윤활유 공급유니트(60)를 포함하여 구성한다.As shown in the drawing, the reciprocating compressor according to the present invention includes a frame unit 20 elastically installed in the casing 10, a reciprocating motor 30 fixed to the frame unit 20, and the reciprocating motor. Compression unit 40 for compressing the refrigerant gas while reciprocating with the 30, a resonant spring unit 50 for maintaining the resonant motion of the compression unit 40 and the frame unit 20 are installed in the casing It comprises a lubricating oil supply unit (60) which pumps the lubricating oil in (10) to the compression unit (40) and directly recovers it to the casing (10).

프레임유니트(20)는 압축유니트(40)와 왕복동모터(30)의 전방측을 지지하는 전방프레임(21)과, 전방프레임(21)에 결합하여 왕복동모터(30)의 후방측을 지지하는 중간프레임(22)과, 중간프레임(22)에 결합하여 공진스프링(52)(53)을 지지하는 후방프레임(23)으로 이루어진다.The frame unit 20 is a front frame 21 for supporting the front side of the compression unit 40 and the reciprocating motor 30, and an intermediate portion for supporting the rear side of the reciprocating motor 30 by being coupled to the front frame 21. A frame 22 and a rear frame 23 coupled to the intermediate frame 22 to support the resonant springs 52 and 53.

왕복동모터(30)는 프레임유니트(20)에 고정하는 외측고정자(31) 및 내측고정자(32)와, 양측 고정자(31)(32) 사이에 개재하여 직선으로 왕복운동을 하는 가동자(33)로 이루어진다.The reciprocating motor 30 has a movable element 33 which reciprocates in a straight line between an outer stator 31 and an inner stator 32 fixed to the frame unit 20 and both stators 31 and 32. Is made of.

압축유니트(40)는 전방프레임(21)에 결합하는 실린더(41)와, 왕복동모터(30)의 가동자(33)에 결합하여 실린더(41)에서 직선으로 왕복운동을 하는 피스톤(42)과, 피스톤(42)에 결합하여 흡입유로(F)를 개폐하는 흡입밸브(43)와, 실린더(41)의 토출측에 설치하여 냉매가스의 토출을 제한하는 토출밸브 조립체(44)로 이루어진다.The compression unit 40 includes a cylinder 41 coupled to the front frame 21, a piston 42 coupled to the mover 33 of the reciprocating motor 30 and reciprocating linearly in the cylinder 41. And a suction valve 43 coupled to the piston 42 to open and close the suction flow path F, and a discharge valve assembly 44 installed on the discharge side of the cylinder 41 to limit discharge of the refrigerant gas.

실린더(41)는 도 4 또는 도 5에서와 같이 원통모양으로 형성하되 그 외주면의 일부, 예컨대 전방프레임(21)의 실린더구멍(21a)과 접하여 후술할 제1 윤활유포켓을 이루는 부위에는 소정의 깊이를 가지는 환형의 윤활유수용홈(41a)을 형성한다.The cylinder 41 is formed in a cylindrical shape as shown in FIG. 4 or 5, but has a predetermined depth in a portion of the outer circumferential surface thereof, for example, a part of the first lube oil pocket which will be described later in contact with the cylinder hole 21a of the front frame 21. Form an annular lubricating oil receiving groove (41a) having a.

또, 도면으로 도시하지는 않았으나 실린더(41)를 원통모양으로 형성하되 상기한 제1 윤활유포켓(62b)을 이루는 외주면에 소정의 높이와 폭을 가지는 복수 개의 윤활유접촉핀(41b)을 환형으로 형성할 수도 있다. Although not shown in the drawing, the cylinder 41 may be formed in a cylindrical shape, but a plurality of lubricant contact pins 41b having a predetermined height and width may be formed in an annular shape on the outer circumferential surface of the first lubricant oil pocket 62b. It may be.

또, 도 6에서와 같이 원통형 실린더(41)의 외주면에 도 4에서와 같이 윤활유수용홈(41a)을 형성하고, 그 윤활유수용홈(41a)의 주면에 도 6에서와 같이 복수 개의 윤활유접촉핀(41b)을 환형으로 형성할 수도 있다. In addition, as shown in Fig. 6, the outer circumferential surface of the cylindrical cylinder 41 is provided with a lubricating oil groove 41a, as shown in Fig. 4, and a plurality of lubricating oil contact pins, as shown in Fig. 6, on the main surface of the lubricating oil groove 41a. It is also possible to form 41b in an annular shape.

공진스프링유니트(50)는 피스톤(42)에 결합하는 스프링 지지대(51)와, 스프링 지지대(51)의 전후 양측을 탄력적으로 지지하여 피스톤(42)이 직선 왕복운동을 하도록 유도하는 전방측 공진스프링(52) 및 후방측 공진스프링(53)으로 이루어진다.The resonant spring unit 50 has a spring support 51 coupled to the piston 42 and a front resonant spring that elastically supports the front and rear sides of the spring support 51 to guide the piston 42 to linearly reciprocate. 52 and a rear resonant spring 53.

윤활유 공급유니트(60)는 프레임유니트(20)의 하반부에 장착하여 그 프레임유니트(20)와 함께 진동하면서 케이싱(10)의 윤활유를 펌핑하는 윤활유 펌핑부(61)와, 윤활유 펌핑부(61)의 출구측과 압축유니트(40)를 연통하도록 상기한 프레임유니트(20)에 형성하는 윤활유 공급유로부(62)로 이루어진다.The lubricating oil supply unit 60 is mounted on the lower half of the frame unit 20 and vibrates with the frame unit 20 to pump the lubricating oil of the casing 10 and the lubricating oil pumping unit 61. It consists of a lubricating oil supply passage 62 formed in the frame unit 20 so as to communicate the outlet side of the compression unit 40 with.

윤활유 공급유로부(62)는 윤활유 펌핑부(61)의 출구측과 연통하여 전방프레임(21)에 형성하는 윤활유흡입로(62a)와, 윤활유흡입로(62a)에 연통하여 전방프레임(21)의 실린더구멍 내주면에 음형지게 환형으로 형성하는 제1 윤활유포켓(62b)과, 제1 윤활유포켓(62b)에 연통하여 실린더(41)에 관통 형성하는 윤활유연통구(62c)와, 윤활유연통구(62c)에 연통하여 일정량의 윤활유를 채우도록 피스톤(42)의 외주면에 음형지게 형성하는 제2 윤활유포켓(62d)과, 제1 윤활유포켓(62b)의 상반부에 연통하여 전방프레임(21)의 상반부로 케이싱(10)을 향해 관통 형성하는 윤활유토출로(62e)로 이루어진다.The lubricating oil supply passage part 62 communicates with the outlet side of the lubricating oil pumping part 61 and the lubricating oil suction path 62a formed in the front frame 21 and the lubricating oil suction path 62a to communicate with the front frame 21. The first lubricating oil pocket 62b which is annularly annularly formed on the inner circumferential surface of the cylinder hole of the cylinder, the lubricating oil communicating port 62c communicating with the first lubricating oil pocket 62b and penetrating the cylinder 41; The upper half of the front frame 21 communicates with the upper half of the second lube oil pocket 62d and the first lube oil pocket 62b, which are formed to be negatively formed on the outer circumferential surface of the piston 42 so as to be in communication with 62c. It consists of a lubricating oil discharge path 62e formed penetrating toward the furnace casing 10.

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.

상기와 같은 본 발명 왕복동식 압축기의 실린더 냉각 구조는 다음과 같은 작용 효과를 갖는다.The cylinder cooling structure of the reciprocating compressor of the present invention as described above has the following effects.

즉, 왕복동모터(30)에 전원을 인가하여 플럭스(flux)를 형성하면, 가동자(33)가 플럭스의 방향에 따라 움직이면서 공진스프링유니트(50)에 의해 지속적으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 왕복운동을 하면서 냉매가스를 압축공간(P)으로 흡입 압축하였다가 토출한다.That is, when a flux is formed by applying power to the reciprocating motor 30, the mover 33 moves in the flux direction and continuously reciprocates by the resonant spring unit 50. While 42 reciprocates in the cylinder 41, the refrigerant gas is sucked and compressed into the compression space P and then discharged.

이 과정중에 윤활유 공급유니트(60)의 윤활유 펌핑부(61)가 프레임유니트(20)와 함께 진동하면서 케이싱(10) 내의 윤활유를 압축유니트(40)로 펌핑하고, 이 윤활유는 윤활유 공급유로부(62)의 윤활유흡입로(62a)를 통해 제1 윤활유포켓(62b)과 윤활유연통구(62c)와 제2 윤활유포켓(62d)으로 유입하면서 피스톤(42)과 실린더(41) 사이의 미끄럼부를 윤활한 후 다시 윤활유연통구(62c)와 제1 윤활유포켓(62b)을 거쳐 윤활유토출로(62e)를 통과하여 케이싱(10)으로 배출되어 회수된다.During this process, the lubricating oil pumping part 61 of the lubricating oil supply unit 60 vibrates with the frame unit 20 to pump the lubricating oil in the casing 10 into the compression unit 40, and the lubricating oil is supplied to the lubricating oil supply passage part ( Lubricates the sliding portion between the piston 42 and the cylinder 41 while flowing into the first lube oil pocket 62b, the lube oil communication port 62c, and the second lube oil pocket 62d through the lube oil suction path 62a. After the lubricating oil communication port 62c and the first lubricating oil pocket 62b, the lubricating oil discharge path 62e passes through the lubricating oil discharge passage 62e, and is discharged and recovered.

여기서, 도 4에서와 같이 제1 윤활유포켓(62b)을 이루는 실린더(41)의 외주면에 소정 깊이의 윤활유수용홈(41a)을 음형지게 형성하는 경우에는 제1 윤활유포켓(62b)의 체적이 넓어져 다량의 윤활유를 수용할 수 있게 되는 것은 물론 윤활유수용홈(41a)을 형성한 부위의 실린더(41)의 두께(t2)가 얇아짐에 따라 피스톤(42)과의 사이에서 발생되는 마찰열이 제1 윤활유포켓(62b)에 수용한 다량의 윤활유로 빠르게 전달되어 보다 효과적으로 냉각할 수 있다.Here, as shown in FIG. 4, when the lube oil receiving groove 41a having a predetermined depth is negatively formed on the outer circumferential surface of the cylinder 41 forming the first lube oil pocket 62b, the volume of the first lube oil pocket 62b is widened. As a result, the frictional heat generated between the piston 42 is reduced as the thickness t2 of the cylinder 41 in the portion where the lubricating oil groove 41a is formed becomes thinner. 1 is quickly delivered to a large amount of lubricating oil contained in the lubricating oil pocket (62b) can be cooled more effectively.

또, 제1 윤활유포켓(62b)을 이루는 실린더(41)의 외주면에 소정 높이의 윤활유접촉핀(41b)을 양형지게 형성하거나 도 7에서와 같이 실린더(41)의 외주면에 소정 깊이의 윤활유수용홈(41a)을 형성하고 그 윤활유수용홈(41a)의 주면에 소정 높이의 윤활유접촉핀(41b)을 형성하는 경우에는 윤활유의 수용량이 증가되는 것은 물론 그 부위의 실린더(41) 두께(t2)가 얇아지는 동시에 윤활유와 실린더(41)의 접촉면적이 증가하여 피스톤(42)과의 사이에서 발생되는 마찰열을 보다 효과적으로 냉각할 수 있다.In addition, a lubricant oil contact pin 41b having a predetermined height is formed on the outer circumferential surface of the cylinder 41 forming the first lubricant oil pocket 62b, or as shown in FIG. 7, a groove having a predetermined depth on the outer circumferential surface of the cylinder 41 is formed. When the 41a is formed and the lubricating oil contact pin 41b of the predetermined height is formed on the main surface of the lubricating oil receiving groove 41a, the capacity of the lubricating oil is increased and the thickness t2 of the cylinder 41 at the portion is increased. At the same time, the area of contact between the lubricating oil and the cylinder 41 increases to cool the frictional heat generated between the piston 42 more effectively.

이렇게 하여, 실린더와 피스톤의 상대운동으로 인한 마찰열을 용이하고 신속하게 냉각하여 압축공간의 온도를 낮추고 이를 통해 압축공간으로 흡입되는 냉매가스의 밀도를 높여 압축기의 냉력을 향상시킬 수 있다.In this way, the frictional heat due to the relative movement of the cylinder and the piston can be easily and quickly cooled to lower the temperature of the compression space and thereby increase the density of refrigerant gas sucked into the compression space, thereby improving the cooling power of the compressor.

본 발명에 의한 왕복동식 압축기의 실린더 냉각 구조는, 실린더의 외주면에 윤활유수용홈을 형성하거나 윤활유접촉핀을 형성함으로써, 실린더와 피스톤 사이에서 발생하는 마찰열을 용이하고 신속하게 냉각하여 압축공간의 온도를 낮추고 이를 통해 압축공간으로 흡입되는 냉매가스의 밀도를 높여 압축기의 냉력을 향상시킬 수 있다.In the cylinder cooling structure of the reciprocating compressor according to the present invention, by forming a groove for lubricating oil or forming a lubricating oil contact pin on the outer circumferential surface of the cylinder, the frictional heat generated between the cylinder and the piston can be easily and quickly cooled to reduce the temperature of the compression space. By lowering and increasing the density of the refrigerant gas sucked into the compression space through it can improve the cooling power of the compressor.

도 1은 종래 왕복동식 압축기의 일례를 보인 단면도.1 is a cross-sectional view showing an example of a conventional reciprocating compressor.

도 2는 종래 왕복동식 압축기에서 실린더를 보인 측면도,Figure 2 is a side view showing a cylinder in a conventional reciprocating compressor,

도 3은 본 발명 왕복동식 압축기의 일례를 보인 단면도,3 is a cross-sectional view showing an example of the reciprocating compressor of the present invention;

도 4는 본 발명 왕복동식 압축기에서 실린더를 보인 측면도,Figure 4 is a side view showing a cylinder in the reciprocating compressor of the present invention,

도 5는 도 4의 "Ⅰ-Ⅰ"선단면도,5 is a cross-sectional view taken along line "I-I" of FIG. 4;

도 6은 본 발명 왕복동식 압축기에서 실린더의 변형예를 보인 측면도.Figure 6 is a side view showing a modification of the cylinder in the reciprocating compressor of the present invention.

** 도면의 주요 부분에 대한 부호의 설명 **** Description of symbols for the main parts of the drawing **

10 : 케이싱 20 : 프레임유니트10 casing 20 frame unit

30 : 왕복동모터 40 : 압축유니트30: reciprocating motor 40: compression unit

41 : 실린더 41a : 윤활유수용홈41: cylinder 41a: lubricating oil receiving groove

41b : 윤활유접촉핀 50 : 공진스프링유니트41b: Lubricant contact pin 50: Resonant spring unit

60 : 윤활유 공급유니트 61 : 윤활유 펌핑부60: lubricant supply unit 61: lubricant pumping unit

62 : 윤활유 공급유로부 62b : 제1 윤활유포켓62: lubricant oil supply passage 62b: first lubricant oil pocket

Claims (3)

가동자가 직선으로 왕복운동을 하는 왕복동모터와, 왕복동모터와 함께 상기 프레임에 고정하는 실린더와, 실린더의 내주면에 미끄러지게 삽입하고 상기 왕복동모터의 가동자에 결합하여 직선 왕복운동을 하면서 냉매가스를 압축하는 피스톤과, 왕복동모터의 가동자와 피스톤을 연결하는 연결부의 전후 양측을 탄력 지지하여 상기 가동자와 피스톤의 공진운동을 유도하는 복수 개의 공진스프링과, 프레임과 함께 진동하면서 케이싱 내의 윤활유를 펌핑하는 윤활유 펌핑부와, 윤활유 펌핑부에 연결하여 윤활유를 압축유니트의 미끄럼부로 공급하도록 프레임유니트에 형성하는 윤활유 공급유로부를 포함한 왕복동식 압축기에 있어서,A reciprocating motor in which the mover linearly reciprocates, a cylinder fixed to the frame together with the reciprocating motor, slides into the inner circumferential surface of the cylinder and is coupled to the mover of the reciprocating motor to compress the refrigerant gas while performing a linear reciprocating motion. And a plurality of resonant springs to elastically support the front and rear sides of the connecting portion connecting the mover and the piston of the reciprocating motor to induce the resonant movement of the mover and the piston, and pump the lubricant in the casing while vibrating with the frame. A reciprocating compressor comprising a lubricant pumping part and a lubricant supply flow path part connected to the lubricant pumping part and formed in the frame unit to supply lubricant oil to the sliding part of the compression unit. 프레임과 함께 윤활유 공급유로부의 일부를 이루는 실린더의 외주면에 적어도 한 개 이상의 윤활유수용홈을 음형지게 형성하는 것을 특징으로 하는 왕복동식 압축기의 실린더 냉각 구조.A cylinder cooling structure of a reciprocating compressor, characterized in that the at least one lube oil receiving groove is negatively formed on the outer circumferential surface of the cylinder that forms part of the lubricant supply passage portion together with the frame. 제1항에 있어서,The method of claim 1, 윤활유유동홈의 주면에는 윤활유와의 접촉면적을 확대하기 위한 적어도 한 개 이상의 윤활유접촉핀을 양형지게 형성하는 것을 특징으로 하는 왕복동식 압축기의 실린더 냉각 구조.The main surface of the lubricating oil flow groove, the cylinder cooling structure of the reciprocating compressor, characterized in that to form at least one or more lubricating oil contact pin for expanding the contact area with the lubricating oil. 가동자가 직선으로 왕복운동을 하는 왕복동모터와, 왕복동모터와 함께 상기 프레임에 고정하는 실린더와, 실린더의 내주면에 미끄러지게 삽입하고 상기 왕복동모터의 가동자에 결합하여 직선 왕복운동을 하면서 냉매가스를 압축하는 피스톤과, 왕복동모터의 가동자와 피스톤을 연결하는 연결부의 전후 양측을 탄력 지지하여 상기 가동자와 피스톤의 공진운동을 유도하는 복수 개의 공진스프링과, 프레임과 함께 진동하면서 케이싱 내의 윤활유를 펌핑하는 윤활유 펌핑부와, 윤활유 펌핑부에 연결하여 윤활유를 압축유니트의 미끄럼부로 공급하도록 프레임유니트에 형성하는 윤활유 공급유로부를 포함한 왕복동식 압축기에 있어서,A reciprocating motor in which the mover linearly reciprocates, a cylinder fixed to the frame together with the reciprocating motor, slides into the inner circumferential surface of the cylinder and is coupled to the mover of the reciprocating motor to compress the refrigerant gas while performing a linear reciprocating motion. And a plurality of resonant springs to elastically support the front and rear sides of the connecting portion connecting the mover and the piston of the reciprocating motor to induce the resonant movement of the mover and the piston, and pump the lubricant in the casing while vibrating with the frame. A reciprocating compressor comprising a lubricant pumping part and a lubricant supply flow path part connected to the lubricant pumping part and formed in the frame unit to supply lubricant oil to the sliding part of the compression unit. 프레임과 함께 윤활유 공급유로부의 일부를 이루는 실린더의 외주면에 윤활유와의 접촉면적을 확대하기 위한 적어도 한 개 이상의 윤활유접촉핀을 양형지게 형성하는 것을 특징으로 하는 왕복동식 압축기의 실린더 냉각 구조.A cylinder cooling structure of a reciprocating compressor, characterized in that the at least one lubricating oil contact pin is formed on the outer circumferential surface of the cylinder constituting a part of the lubricating oil supply passage part together with the frame to enlarge the contact area with the lubricating oil.
KR1020030065649A 2003-09-22 2003-09-22 Cylinder cooling structure for reciprocating compressor KR100548442B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020030065649A KR100548442B1 (en) 2003-09-22 2003-09-22 Cylinder cooling structure for reciprocating compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020030065649A KR100548442B1 (en) 2003-09-22 2003-09-22 Cylinder cooling structure for reciprocating compressor

Publications (2)

Publication Number Publication Date
KR20050029397A true KR20050029397A (en) 2005-03-28
KR100548442B1 KR100548442B1 (en) 2006-02-02

Family

ID=37385998

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020030065649A KR100548442B1 (en) 2003-09-22 2003-09-22 Cylinder cooling structure for reciprocating compressor

Country Status (1)

Country Link
KR (1) KR100548442B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109058078A (en) * 2018-08-07 2018-12-21 青岛海尔智能技术研发有限公司 A kind of compressor and refrigeration equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109058078A (en) * 2018-08-07 2018-12-21 青岛海尔智能技术研发有限公司 A kind of compressor and refrigeration equipment
WO2020029562A1 (en) * 2018-08-07 2020-02-13 青岛海尔智能技术研发有限公司 Compressor and refrigeration device
CN109058078B (en) * 2018-08-07 2021-03-23 青岛海尔智能技术研发有限公司 Compressor and refrigeration plant

Also Published As

Publication number Publication date
KR100548442B1 (en) 2006-02-02

Similar Documents

Publication Publication Date Title
KR20040026711A (en) Frame structure for reciprocating compressor
US11053932B2 (en) Linear compressor
KR100548442B1 (en) Cylinder cooling structure for reciprocating compressor
US20070148018A1 (en) Reciprocating compressor
KR100517937B1 (en) Cylinder cooling structure for reciprocating compressor
KR100524723B1 (en) Oil supply apparatus for reciprocating compressor
KR100575813B1 (en) Discharge cover cooling device for reciprocating compressor
KR100856777B1 (en) Oilless lubricating apparatus for reciprocating compressor
KR100273424B1 (en) Cylinder cooling structure of linear compressor
KR100524715B1 (en) Lubricating device of reciprocating compressor
KR100314061B1 (en) Structure for lubricating piston of linear compressor
KR100620046B1 (en) Structure for fixing oil spring of reciprocating compressor
KR100504898B1 (en) Oil supplying structure for reciprocating compressor
KR100292501B1 (en) Oil supply method and structure of linear compressor
KR20050017250A (en) Oil guide device for reciprocating compressor
KR100856776B1 (en) Oilless lubricating apparatus for reciprocating compressor
KR100575677B1 (en) Motor cooling structure for reciprocating compressor
KR100273361B1 (en) Strusture for cooling in linear compressor
KR100504905B1 (en) Discharge apparatus of reciprocating compressor
KR100451240B1 (en) Supporting structure for spring in reciprocating compressor
KR100504863B1 (en) Structure for preventing overheat of reciprocating compressor
KR100652598B1 (en) Device for supplying oil of reciprocating compressor
KR100421616B1 (en) Reciprocating compressor
KR100314066B1 (en) Structure for radiating cylinder of linear compressor
KR20030083241A (en) Device for reducing noise of reciprocating compressor

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20090105

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee