KR100469466B1 - Valve damping apparatus scroll compressor - Google Patents

Valve damping apparatus scroll compressor Download PDF

Info

Publication number
KR100469466B1
KR100469466B1 KR10-2002-0057590A KR20020057590A KR100469466B1 KR 100469466 B1 KR100469466 B1 KR 100469466B1 KR 20020057590 A KR20020057590 A KR 20020057590A KR 100469466 B1 KR100469466 B1 KR 100469466B1
Authority
KR
South Korea
Prior art keywords
scroll
valve
fixed
check valve
swing
Prior art date
Application number
KR10-2002-0057590A
Other languages
Korean (ko)
Other versions
KR20040026214A (en
Inventor
이승주
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 KR10-2002-0057590A priority Critical patent/KR100469466B1/en
Publication of KR20040026214A publication Critical patent/KR20040026214A/en
Application granted granted Critical
Publication of KR100469466B1 publication Critical patent/KR100469466B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
    • 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
    • F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/023—Lubricant distribution through a hollow driving shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

본 발명은 스크롤 압축기의 밸브 댐핑 장치에 관한 것으로, 본 발명은 구동모터의 회전자에 연결하여 선회운동을 하는 선회스크롤과, 이 선회스크롤에 치합한 상태로 케이싱의 내부에 고정하여 상기 선회스크롤과 함께 연속적으로 이동하는 복수 개의 압축실을 쌍으로 형성하는 고정스크롤을 포함한 스크롤 압축기에 있어서, 선회스크롤 또는 고정스크롤의 배면에 설치하여 최종압축실에 연통하도록 형성한 토출구를 개폐하여 토출가스의 역류를 차단하는 역지밸브와, 이 역지밸브의 열림시 압축배면과 접촉하는 밸브접촉면에 밸브와의 충돌을 완충하도록 오일포켓홈을 형성하는 밸브스토퍼로 구성함으로써, 압축가스의 토출시 그 압축가스에 함유된 오일이 상기한 오일포켓홈에 잔류하였다가 밸브의 열림시 밸브스토퍼에 부딪히면서 가중되는 밸브충격량이나 충돌소음을 완화할 수 있다.The present invention relates to a valve damping device of a scroll compressor, the present invention relates to a swing scroll connected to the rotor of the drive motor and to the pivoting movement, and fixed to the inside of the casing in a state fitted to the swing scroll and the swing scroll and In a scroll compressor including a fixed scroll for forming a plurality of compression chambers that move continuously together in pairs, the discharge port formed on the back of the swing scroll or fixed scroll to communicate with the final compression chamber to open and close the discharge flow It consists of a check valve to shut off and a valve stopper which forms an oil pocket groove so as to buffer a collision with the valve on the valve contact surface which comes into contact with the compression back surface when the check valve is opened. Valves where oil remains in the oil pocket groove described above and strikes the valve stopper when the valve is opened Impact amount and impact noise can be alleviated.

Description

스크롤 압축기의 밸브 댐핑 장치{VALVE DAMPING APPARATUS SCROLL COMPRESSOR}VALVE DAMPING APPARATUS SCROLL COMPRESSOR}

본 발명은 스크롤 압축기의 밸브 댐핑 장치에 관한 것으로, 특히 역지밸브의 개폐시 밸브충돌로 인한 충격과 소음을 줄일 수 있는 스크롤 압축기의 밸브 댐핑 장치에 관한 것이다.The present invention relates to a valve damping device of a scroll compressor, and more particularly to a valve damping device of a scroll compressor that can reduce the impact and noise caused by a valve collision when opening and closing the check valve.

일반적으로 압축기는 기계적 에너지를 압축성 유체의 압축에너지로 변환시키는 것으로, 통상 왕복동식 및 스크롤식 및 원심식 그리고 베인식으로 구분한다.In general, a compressor converts mechanical energy into compressive energy of a compressive fluid, and is generally classified into reciprocating type, scroll type, centrifugal type, and vane type.

스크롤식 압축기는 피스톤의 직선운동을 이용하는 왕복동식과는 달리 원심식이나 베인식과 같이 회전체를 이용하여 가스를 흡입 압축하여 토출한다.Unlike the reciprocating type which uses the linear motion of the piston, the scroll type compressor sucks and discharges the gas by using a rotating body such as a centrifugal type or a vane type.

도 1은 종래 스크롤 압축기의 일례를 보인 종단면도이다.1 is a longitudinal sectional view showing an example of a conventional scroll compressor.

이에 도시한 바와 같이 종래의 스크롤 압축기는, 가스흡입관(SP)과 가스토출관(DP)을 구비한 케이싱(1)과, 케이싱(1)의 내주면 상하 양측에 각각 고정하는 메인프레임(2) 및 서브프레임(미도시)과, 메인프레임(2)과 서브프레임 사이에 장착하는 구동모터(3)와, 구동모터(3)의 중심에 압입하고 메인프레임(2)과 서브프레임을 관통하여 구동모터(3)의 회전력을 전달하는 구동축(4)과, 구동축(4)에 결합하여 메인프레임(2)의 상면에 얹히는 선회스크롤(5)과, 선회스크롤(5)에 결합하여 복수 개의 압축실을 형성하도록 메인프레임(2)의 상면에 고정하는 고정스크롤(6)과, 고정스크롤(6)의 배면에 결합하여 케이싱(1)의 내부를 흡입압 영역과 토출압 영역으로 구획하는 고저압 분리판(7)과, 고정스크롤(6)의 경판부 배면에 결합하여 압축기가정지할 때 토출가스의 역류를 방지하는 역지밸브 조립체(8)를 포함하고 있다.As shown in the drawing, a conventional scroll compressor includes a casing 1 having a gas suction pipe SP and a gas discharge pipe DP, a main frame 2 fixed to upper and lower sides of the inner circumferential surface of the casing 1, and A sub-frame (not shown), a drive motor 3 mounted between the main frame 2 and the sub-frame, and a drive motor press-fitted into the center of the drive motor 3 and penetrate the main frame 2 and the sub-frame. (3) a drive shaft (4) for transmitting the rotational force, a swing scroll (5) coupled to the drive shaft (4) and placed on the upper surface of the main frame (2), a plurality of compression chambers in combination with the swing scroll (5) A fixed scroll 6 fixed to the upper surface of the main frame 2 to form an upper portion, and a high and low pressure separation coupled to the rear surface of the fixed scroll 6 to partition the inside of the casing 1 into a suction pressure region and a discharge pressure region. It is coupled to the plate 7 and the rear surface of the hard plate portion of the fixed scroll 6 to prevent the reverse flow of discharged gas when the compressor is stopped. Which includes a non-return valve assembly (8).

역지밸브 조립체(8)는 도 2에서와 같이 고정스크롤(6)의 토출구(6b) 주변에 설치하여 토출가스의 역류시 이를 차단하는 역지밸브(8A)와, 이 역지밸브(8A)의 열림량을 제한하도록 상기한 역지밸브(8A)와 함께 체결볼트(8C)로 고정스크롤(6)에 설치하는 밸브스토퍼(8B)로 이루어져 있다.The check valve assembly 8 is installed around the discharge port 6b of the fixed scroll 6, as shown in FIG. 2, to prevent the reverse flow of the discharge gas, and a check valve 8A and an opening amount of the check valve 8A. It consists of a valve stopper (8B) to be installed on the fixed scroll (6) by the fastening bolt (8C) together with the check valve (8A) to limit the.

역지밸브(8A)는 리드형 밸브로 이루어져 일단은 고정스크롤(6)에 고정하고 타단은 휘어지면서 토출구(6b)를 개폐하도록 장방형으로 형성하고 있다.The check valve 8A consists of a lead valve and is fixed in a fixed scroll 6 at one end thereof, and is formed in a rectangle to open and close the discharge port 6b while the other end is bent.

밸브스토퍼(8B)는 그 일단을 상기한 역지밸브(8A)와 밀착하여 함께 고정스크롤(6)의 배면에 고정하고 타단은 바깥쪽으로 휘어지면서 역지밸브(8A)와 일정 간격 만큼 떨어져 위치하도록 일정 곡률로 곡면지게 형성하고 있다.The valve stopper 8B is brought into close contact with the check valve 8A as described above and fixed to the rear surface of the fixed scroll 6, and the other end is bent outward while being fixed to a certain distance from the check valve 8A. It is formed to be curved.

이 밸브스토퍼(8B)는 역지밸브(8A)의 개폐시 접하는 밸브접촉면(S)을 매끈하게 하게 형성하고 있다.The valve stopper 8B is formed to smooth the valve contact surface S which is in contact with the opening and closing of the check valve 8A.

도면중 미설명 부호인 4a는 오일유로, 5a 및 6a는 선회스크롤의 랩부 및 고정스크롤의 랩부, 6c는 체결홈, 8a 및 8b는 관통공, P는 압축실이다.In the figure, reference numeral 4a denotes an oil passage, 5a and 6a denote a lap portion of a turning scroll and a lap portion of a fixed scroll, 6c a fastening groove, 8a and 8b a through hole, and P a compression chamber.

상기와 같은 종래의 스크롤 압축기는 다음과 같이 동작한다.The conventional scroll compressor as described above operates as follows.

즉, 인가한 전원에 의해 구동축(4)이 구동모터(3)와 함께 회전을 하면서 선회스크롤(5)이 편심거리 만큼 선회하고, 이와 함께 선회스크롤(5)은 고정스크롤(6)과의 랩부(5a,6a) 사이에 압축실(P)을 복수 개 형성하며, 이 압축실(P)은 선회스크롤(5)의 지속적인 선회운동에 의해 중심으로 이동하면서 체적이 감소하여 냉매가스를 흡입 압축하여 토출한다.That is, while the drive shaft 4 is rotated together with the drive motor 3 by the applied power source, the turning scroll 5 turns by an eccentric distance, and the turning scroll 5 is wrapped with the fixed scroll 6. A plurality of compression chambers (P) are formed between (5a, 6a), the compression chamber (P) is moved to the center by the continuous turning movement of the turning scroll (5) to decrease the volume by suction suction compression of the refrigerant gas Discharge.

여기서, 압축기가 정상운전을 하는 경우에는 역지밸브(8A)가 압축가스의 압력에 밀려 고정점을 중심으로 휘어지고, 이 과정에서 토출구(6b)가 열리면서 압축가스가 케이싱(1) 내부의 토출압 영역으로 토출된다. 이때 역지밸브(8A)는 그 배면측에 위치한 밸브스토퍼(8B)에 의해 열림량이 제한된다.Here, when the compressor is in normal operation, the check valve 8A is pushed around the fixed point by being pushed by the pressure of the compressed gas, and in the process, the discharge port 6b is opened, and the compressed gas is discharged inside the casing 1. It is discharged to the area. At this time, the opening amount of the check valve 8A is limited by the valve stopper 8B located on its back side.

반면, 압축기가 정지하는 경우에는 최종 압축실(P)의 압력이 토출압 영역의 압력 보다 상대적으로 낮아 역지밸브(8A)는 자체 탄성과 토출가스의 압력에 밀려 고정점을 중심으로 펴지면서 고정스크롤(6)의 토출구(6b)를 닫아 토출압 영역으로 토출한 냉매가스가 압축실(P)로 역류하는 것을 방지하는 것이었다.On the other hand, when the compressor is stopped, the pressure in the final compression chamber (P) is relatively lower than the pressure in the discharge pressure region, and the check valve (8A) is pushed to its own elasticity and the pressure of the discharge gas to expand around the fixed point, and the fixed scroll The discharge port 6b of (6) was closed to prevent the refrigerant gas discharged into the discharge pressure region from flowing back into the compression chamber P.

그러나, 상기와 같은 종래 스크롤 압축기에 있어서는, 압축기가 기동할 때 압축가스가 급격하게 역지밸브(8A)를 밀어 이 역지밸브(8A)가 갑자기 열리면서 밸브스토퍼(8B)에 강하게 충돌하면서 파손되거나 또는 큰 소음을 유발하는 문제점이 있었다.However, in the conventional scroll compressor as described above, when the compressor starts up, the compressed gas suddenly pushes the check valve 8A, causing the check valve 8A to suddenly open and being damaged or crashing strongly against the valve stopper 8B. There was a problem causing noise.

본 발명은 상기와 같은 종래 스크롤 압축기가 가지는 문제점을 감안하여 안출한 것으로, 리드형 역지밸브와 이 역지밸브의 열림량을 제한하는 밸브스토퍼 사이의 충돌력을 저감할 수 있는 스크롤 압축기의 밸브 댐핑 장치를 제공하려는데 본 발명의 목적이 있다.The present invention has been made in view of the problems of the conventional scroll compressor as described above, and the valve damping device of the scroll compressor that can reduce the collision force between the lead check valve and the valve stopper limiting the opening amount of the check valve It is an object of the present invention to provide.

도 1은 종래 스크롤 압축기의 일부를 보인 종단면도,1 is a longitudinal sectional view showing a part of a conventional scroll compressor;

도 2는 종래 역지밸브 조립체를 분해하여 보인 사시도,2 is an exploded perspective view showing a conventional check valve assembly;

도 3은 본 발명 스크롤 압축기에서 역지밸브 조립체를 분해하여 보인 사시도,3 is an exploded perspective view showing the check valve assembly in the scroll compressor of the present invention;

도 4는 본 발명 스크롤 압축기에서 역지밸브 조립체의 동작 상태를 조립하여 보인 단면도,Figure 4 is a cross-sectional view showing the assembled operating state of the check valve assembly in the scroll compressor of the present invention,

도 5는 본 발명 스크롤 압축기의 역지밸브 조립체에서 밸스스토퍼의 변형예를 보인 단면도,Figure 5 is a cross-sectional view showing a modification of the ball stopper in the check valve assembly of the scroll compressor of the present invention,

도 6은 본 발명 스크롤 압축기의 역지밸브 조립체에 대한 변형예를 보인 단면도.Figure 6 is a cross-sectional view showing a modification of the check valve assembly of the scroll compressor of the present invention.

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

6 : 고정스크롤 6b : 토출구6: fixed scroll 6b: discharge port

6d : 오일포켓홈 11 : 역지밸브6d: oil pocket groove 11: check valve

12 : 밸브스토퍼 12a : 오일포켓홈12: valve stopper 12a: oil pocket groove

S : 밸브접촉면S: Valve contact surface

본 발명의 목적을 달성하기 위하여, 구동모터의 회전자에 연결하여 선회운동을 하는 선회스크롤과, 이 선회스크롤에 치합한 상태로 케이싱의 내부에 고정하여상기 선회스크롤과 함께 연속적으로 이동하는 복수 개의 압축실을 쌍으로 형성하는 고정스크롤을 포함한 스크롤 압축기에 있어서, 선회스크롤 또는 고정스크롤의 배면에 설치하여 최종압축실에 연통하도록 형성한 토출구를 개폐하여 토출가스의 역류를 차단하는 역지밸브와, 이 역지밸브의 열림시 압축배면과 접촉하는 밸브접촉면에 밸브와의 충돌을 완충하도록 오일포켓홈을 형성하는 밸브스토퍼로 된 스크롤 압축기의 밸브 댐핑 장치를 제공한다.In order to achieve the object of the present invention, the rotating scroll is connected to the rotor of the drive motor and the swinging movement, and a plurality of continuously fixed with the swinging scroll fixed to the inside of the casing in a state fitted to the swinging scroll A scroll compressor including a fixed scroll for forming a compression chamber in pairs, comprising: a check valve installed on a rear surface of a swing scroll or a fixed scroll to open and close a discharge port formed so as to communicate with a final compression chamber to block a reverse flow of discharge gas; Provided is a valve damping device of a scroll compressor having a valve stopper which forms an oil pocket groove so as to buffer a collision with a valve on a valve contact surface which contacts the compression back when the check valve is opened.

이하, 본 발명에 의한 스크롤 압축기의 밸브 댐핑 장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.Hereinafter, a valve damping device for a scroll compressor according to the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings.

도 3은 본 발명 스크롤 압축기에서 역지밸브 조립체를 분해하여 보인 사시도이고, 도 4는 본 발명 스크롤 압축기에서 역지밸브 조립체의 동작 상태를 조립하여 보인 단면도이며, 도 5는 본 발명 스크롤 압축기의 역지밸브 조립체에서 밸스스토퍼의 변형예를 보인 단면도이다.Figure 3 is a perspective view showing an exploded check valve assembly in the scroll compressor of the present invention, Figure 4 is a cross-sectional view showing the operation of the check valve assembly in the scroll compressor of the present invention, Figure 5 is a check valve assembly of the scroll compressor of the present invention Is a cross-sectional view showing a modification of the ball stopper.

이에 도시한 바와 같이 본 발명 스크롤 압축기에서 댐핑 장치를 가지는 역지밸브 조립체는 도 3에서와 같이 고정스크롤(6)의 토출구(6b) 주변에 설치하여 토출가스의 역류시 이를 차단하는 역지밸브(11)와, 이 역지밸브(11)의 열림량을 제한하도록 상기한 역지밸브(11)와 함께 체결볼트(13)로 고정스크롤(6)에 설치하고 밸브접촉면(S)에 다수 개의 오일포켓홈(12a)을 형성하는 밸브스토퍼(12)로 구성한다.As shown in FIG. 3, the check valve assembly having the damping device in the scroll compressor is installed around the discharge port 6b of the fixed scroll 6 to block the reverse flow of the discharge gas as shown in FIG. 3. And a plurality of oil pocket grooves 12a installed on the fixed scroll 6 with the fastening bolt 13 together with the check valve 11 so as to limit the opening amount of the check valve 11 and the valve contact surface S. It consists of the valve stopper 12 which forms ().

역지밸브(11)는 리드형 밸브로 이루어져 일단은 고정스크롤(6)에 고정하고 타단은 휘어지면서 토출구(6b)를 개폐하도록 장방형으로 형성한다.Check valve 11 is composed of a lead-type valve is fixed to the fixed scroll (6) and the other end is bent to form a rectangle to open and close the discharge port (6b).

밸브스토퍼(12)는 그 일단을 역지밸브(11)와 밀착하여 함께 고정스크롤(6)의배면에 고정하고 타단은 바깥쪽으로 휘어지면서 상기한 역지밸브(11)와 일정 간격 만큼 떨어져 위치하도록 일정 곡률로 곡면지게 형성한다.The valve stopper 12 is fixed in curvature so that one end thereof is in close contact with the check valve 11 and is fixed to the rear surface of the fixed scroll 6, and the other end thereof is bent outward and spaced apart from the check valve 11 by a predetermined interval. To be curved.

밸브스토퍼(12)는 역지밸브(11)의 열림시 접하는 밸브접촉면(S)에 상기한 오일포켓홈(12a)을 다수 개 형성하되 이 오일포켓홈(12a)은 평면투영시 원형으로 형성하여 도 3에서와 같이 균일하게 분포시키거나 또는 불균일하게 분포시킬 수도 있다.The valve stopper 12 forms a plurality of the oil pocket grooves 12a described above in the valve contact surface S which is in contact with the opening of the check valve 11, and the oil pocket grooves 12a are formed in a circular shape when being projected in a plane. It may be distributed uniformly or inhomogeneously as in 3.

또, 오일포켓홈(12a)은 밸브스토퍼(12)가 역지밸브(11)의 상측에 위치하고 밸브접촉면(S)을 밸브스토퍼(12)의 바닥면에 형성하는 점을 감안하여 그 내부에 일정량의 오일(O)이 효과적으로 채워지도록 하기 위하여는 도 4에서와 같이 측면투영시 안쪽의 최대 직경이 표면 직경 보다 큰 씨(C)자형 단면 모양으로 형성하는 것이 바람직하다. 이를 위해 식각을 통해 오일포켓홈(12a)을 형성할 수도 있다.In addition, the oil pocket groove 12a has a certain amount of internal space in view of the fact that the valve stopper 12 is located above the check valve 11 and the valve contact surface S is formed on the bottom surface of the valve stopper 12. In order to effectively fill the oil (O), as shown in Figure 4 it is preferable to form a cross-sectional shape of the seed (C) shape when the maximum diameter of the inner side when the side projection is larger than the surface diameter. To this end, the oil pocket groove 12a may be formed through etching.

또, 오일포켓홈(12a)은 도 5에서와 같이 선형으로 형성하되 양방향에서 직교하여 바둑판 모양으로 형성할 수도 있다. 이 경우에도 오일포켓홈(12a)은 측면투영시 씨(C)자형 단면 모양으로 형성하는 것이 바람직하다.In addition, the oil pocket groove 12a may be formed in a linear shape as shown in FIG. 5, orthogonally in both directions, to form a checkerboard shape. Even in this case, the oil pocket groove 12a is preferably formed in the shape of the seed (C) -shaped cross section during side projection.

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 6c는 체결홈, 11a 및 12b는 관통공이다.Reference numeral 6c in the figure is a fastening groove, and 11a and 12b are through holes.

상기와 같은 종래의 스크롤 압축기의 밸브 댐핑 장치는 다음과 같은 작용 효과가 있다.The valve damping device of the conventional scroll compressor as described above has the following effects.

도 1을 참고하여 살펴 보면, 인가한 전원에 의해 구동축(4)이 구동모터(3)와 함께 회전을 하면서 선회스크롤(5)이 편심거리 만큼 선회하고, 이와 함께 선회스크롤(5)은 고정스크롤(6)과의 랩부(5a,6a) 사이에 연속으로 이동하면서 체적이 좁아지는 압축실(P)을 복수 개 형성하여 냉매가스를 흡입 압축하여 토출한다. 이때, 구동축(4)의 오일유로(4a)를 통해서는 케이싱(1)의 바닥면에 있던 오일이 구동축(4)의 회전력에 의해 흡상되어 각 부재의 미끄럼부를 윤활한다.Referring to Figure 1, while the drive shaft (4) is rotated with the drive motor (3) by the applied power, the turning scroll (5) is rotated by an eccentric distance, with the turning scroll (5) fixed scroll A plurality of compression chambers P whose volume is narrowed while continuously moving between the wrap portions 5a and 6a with (6) are formed, and the refrigerant gas is sucked and compressed and discharged. At this time, the oil in the bottom surface of the casing 1 is sucked up by the rotational force of the drive shaft 4 through the oil flow path 4a of the drive shaft 4, and lubricates the sliding part of each member.

여기서, 압축기가 정상운전을 하는 경우에는 역지밸브(11)가 압축가스의 압력에 밀려 고정점을 중심으로 휘어지고, 이 과정에서 토출구(6b)가 열리면서 압축가스가 케이싱(1) 내부의 토출압 영역으로 연속 토출된다. 반면, 압축기가 정지하는 경우에는 최종 압축실(P)의 압력이 토출압 영역의 압력 보다 상대적으로 낮아 역지밸브(11)는 자체 탄성과 토출가스의 압력에 밀려 고정점을 중심으로 펴지면서 고정스크롤(6)의 토출구(6b)를 닫아 토출압 영역으로 토출한 냉매가스가 압축실(P)로 역류하는 것을 방지한다.In this case, when the compressor is in normal operation, the check valve 11 is pushed around the fixed point by being pushed by the pressure of the compressed gas, and in this process, the discharge port 6b is opened and the compressed gas is discharged inside the casing 1. It is continuously discharged to the area. On the other hand, when the compressor is stopped, the pressure in the final compression chamber (P) is relatively lower than the pressure in the discharge pressure region, and the check valve (11) is pushed by its elasticity and the pressure of the discharge gas to expand around the fixed point, and thus the fixed scroll The discharge port 6b of (6) is closed to prevent the refrigerant gas discharged into the discharge pressure region from flowing back into the compression chamber P.

이후, 압축기가 재기동할 때는 역지밸브(11)가 압축실(P)의 압력에 의해 갑자기 열리면서 밸브스토퍼(12)의 밸브접촉면(S)에 충돌하여 밸브(11)가 파손하거나 밸브타음을 유발할 수 있으나, 밸브스토퍼(12)의 밸브접촉면(S)에는 상기한 오일포켓홈(12a)을 형성함에 따라 압축기의 정상운전시 압축가스에 함유되어 토출되던 오일(O)의 일부가 상기한 오일포켓홈(12a)에 잔류하였다가 역지밸브(11)가 열리는 순간 밸브스토퍼(12)와의 충격을 완화시키는 댐핑 역할을 함으로써 역지밸브(11)가 받는 충격량을 줄여 밸브파손이나 밸브타음을 방지하는 것이다.Thereafter, when the compressor is restarted, the check valve 11 is suddenly opened by the pressure of the compression chamber P and collides with the valve contact surface S of the valve stopper 12 to damage the valve 11 or cause a valve sound. However, since the oil pocket groove 12a is formed on the valve contact surface S of the valve stopper 12, a part of the oil O contained in the compressed gas during normal operation of the compressor is discharged. By remaining at (12a) and acting as a damping function to alleviate the impact with the valve stopper 12 as soon as the check valve 11 is opened, the impact amount received by the check valve 11 is reduced to prevent valve breakage or valve sounding.

한편, 본 발명에 의한 스크롤 압축기의 밸브 댐핑 장치에 대한 변형예가 있는 경우는 다음과 같다.On the other hand, when there is a modification to the valve damping device of the scroll compressor according to the present invention.

즉, 전술한 일례에서는 오일포켓홈(12a)을 밸브스토퍼(12)의 밸브접촉면(S)에만 형성하고 있으나, 경우에 따라서는 도 6에서와 같이 고정스크롤(6)의 밸브접촉면(미부호)에도 상기한 오일포켓홈(6d)을 형성할 수 있다. 이 경우는 특히 역지밸브(11)로 자체 무게가 커서 닫힐 때 고정스크롤(6)과의 충격으로 인해 소음을 유발하는 피스톤밸브를 사용할 때 보다 효과적이다. 이때에도 고정스크롤(6)의 오일포켓홈(6d)에는 토출시 생긴 오일이 잔류하여 밸브(11)의 충돌을 완화시키는 것이다.That is, in the above-described example, the oil pocket groove 12a is formed only on the valve contact surface S of the valve stopper 12, but in some cases, the valve contact surface (unsigned) of the fixed scroll 6 as shown in FIG. The oil pocket groove 6d may also be formed. This case is particularly effective when using a piston valve that causes noise due to impact with the fixed scroll 6 when the check valve 11 is closed due to its own weight. At this time, the oil generated during discharge remains in the oil pocket groove 6d of the fixed scroll 6 to alleviate the collision of the valve 11.

본 발명에 의한 스크롤 압축기의 밸브 댐핑 장치는, 역지밸브의 개폐정도를 제한하는 밸브스토퍼의 밸브접촉면에 오일포켓홈을 형성함으로써, 압축가스의 토출시 그 압축가스에 함유된 오일이 상기한 오일포켓홈에 잔류하였다가 밸브의 열림시 밸브스토퍼에 부딪히면서 가중되는 밸브충격량이나 충돌소음을 완화할 수 있다.In the valve damping device of the scroll compressor according to the present invention, the oil pocket groove is formed on the valve contact surface of the valve stopper for limiting the opening and closing of the check valve, so that the oil pocket contained in the compressed gas when the compressed gas is discharged. It can reduce the amount of impact on the valve or impact noise, which remains in the groove and hits the valve stopper when the valve is opened.

Claims (5)

삭제delete 구동모터의 회전자에 연결하여 선회운동을 하는 선회스크롤과, 이 선회스크롤에 치합한 상태로 케이싱의 내부에 고정하여 상기 선회스크롤과 함께 연속적으로 이동하는 복수 개의 압축실을 쌍으로 형성하는 고정스크롤을 포함한 스크롤 압축기에 있어서,Fixed scroll which connects to the rotor of the drive motor to make a swing movement and a plurality of compression chambers which are fixed to the inside of the casing while being engaged with the swing scroll and continuously move together with the swing scroll in pairs. In the scroll compressor comprising: 선회스크롤 또는 고정스크롤의 배면에 설치하여 최종압축실에 연통하도록 형성한 토출구를 개폐하여 토출가스의 역류를 차단하는 역지밸브와, 이 역지밸브의 열림시 압축배면과 접촉하는 밸브접촉면에 밸브와의 충돌을 완충하도록 평면투영시 원형으로 음형지게 오일포켓홈을 형성하는 밸브스토퍼로 된 스크롤 압축기의 밸브 댐핑 장치.A check valve installed on the rear surface of the swing scroll or fixed scroll to open and close the discharge port formed to communicate with the final compression chamber, and blocking the reverse flow of discharge gas; and when the check valve is opened, Valve damping device of a scroll compressor comprising a valve stopper that is negatively formed in a circular shape in a flat projection to cushion the impact. 구동모터의 회전자에 연결하여 선회운동을 하는 선회스크롤과, 이 선회스크롤에 치합한 상태로 케이싱의 내부에 고정하여 상기 선회스크롤과 함께 연속적으로 이동하는 복수 개의 압축실을 쌍으로 형성하는 고정스크롤을 포함한 스크롤 압축기에 있어서,Fixed scroll which connects to the rotor of the drive motor to make a swing movement and a plurality of compression chambers which are fixed to the inside of the casing while being engaged with the swing scroll and continuously move together with the swing scroll in pairs. In the scroll compressor comprising: 선회스크롤 또는 고정스크롤의 배면에 설치하여 최종압축실에 연통하도록 형성한 토출구를 개폐하여 토출가스의 역류를 차단하는 역지밸브와, 이 역지밸브의 열림시 압축배면과 접촉하는 밸브접촉면에 밸브와의 충돌을 완충하도록 평면투영시 선형으로 음형지게 오일포켓홈을 형성하는 밸브스토퍼로 된 스크롤 압축기의 밸브 댐핑 장치.A check valve installed on the rear surface of the swing scroll or fixed scroll to open and close the discharge port formed to communicate with the final compression chamber, and blocking the reverse flow of discharge gas; and when the check valve is opened, Valve damping device of a scroll compressor with a valve stopper to form an oil pocket groove linearly negatively in planar projection to cushion the impact. 구동모터의 회전자에 연결하여 선회운동을 하는 선회스크롤과, 이 선회스크롤에 치합한 상태로 케이싱의 내부에 고정하여 상기 선회스크롤과 함께 연속적으로 이동하는 복수 개의 압축실을 쌍으로 형성하는 고정스크롤을 포함한 스크롤 압축기에 있어서,Fixed scroll which connects to the rotor of the drive motor to make a swing movement and a plurality of compression chambers which are fixed to the inside of the casing while being engaged with the swing scroll and continuously move together with the swing scroll in pairs. In the scroll compressor comprising: 선회스크롤 또는 고정스크롤의 배면에 설치하여 최종압축실에 연통하도록 형성한 토출구를 개폐하여 토출가스의 역류를 차단하는 역지밸브와, 이 역지밸브의 열림시 압축배면과 접촉하는 밸브접촉면에 밸브와의 충돌을 완충하도록 측면투영시 안쪽의 최대 직경이 표면 직경 보다 크게 오일포켓홈을 형성하는 밸브스토퍼로 된 스크롤 압축기의 밸브 댐핑 장치.A check valve installed on the rear surface of the swing scroll or fixed scroll to open and close the discharge port formed to communicate with the final compression chamber, and blocking the reverse flow of discharge gas; and when the check valve is opened, Valve damping device of a scroll compressor with a valve stopper, the side diameter of which is formed in the oil pocket groove larger than the surface diameter during side projection to cushion the impact. 제2항 내지 제4항의 어느 한 항에 있어서,The method according to any one of claims 2 to 4, 오일포켓홈은 고정스크롤의 밸브접촉면에도 형성하는 것을 특징으로 하는 스크롤 압추기의 밸브 댐핑 장치.An oil pocket groove is a valve damping device of a scroll presser, characterized in that formed on the valve contact surface of the fixed scroll.
KR10-2002-0057590A 2002-09-23 2002-09-23 Valve damping apparatus scroll compressor KR100469466B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2002-0057590A KR100469466B1 (en) 2002-09-23 2002-09-23 Valve damping apparatus scroll compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2002-0057590A KR100469466B1 (en) 2002-09-23 2002-09-23 Valve damping apparatus scroll compressor

Publications (2)

Publication Number Publication Date
KR20040026214A KR20040026214A (en) 2004-03-30
KR100469466B1 true KR100469466B1 (en) 2005-02-02

Family

ID=37328718

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2002-0057590A KR100469466B1 (en) 2002-09-23 2002-09-23 Valve damping apparatus scroll compressor

Country Status (1)

Country Link
KR (1) KR100469466B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100674652B1 (en) * 2004-04-16 2007-01-25 학교법인 포항공과대학교 Assembly-free process method based on virtual circumstance of micro system
CN103267017B (en) * 2013-06-06 2016-07-06 苏州英华特涡旋技术有限公司 There is the screw compressor of novel exhaust mouth structure and exhaust valve component
KR101509898B1 (en) * 2013-07-09 2015-04-07 현대자동차주식회사 Vacuum pump of vehicle for reducing operation noise
KR102589293B1 (en) * 2018-05-17 2023-10-12 엘지전자 주식회사 Compressor having one piece-type valve sheet and stopper sheet

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03134285A (en) * 1989-10-18 1991-06-07 Hitachi Ltd Sealed type variable speed scroll compressor
JPH04287889A (en) * 1991-03-15 1992-10-13 Hitachi Ltd Rotary compressor
JPH07189942A (en) * 1993-12-28 1995-07-28 Matsushita Electric Ind Co Ltd Scroll compressor
JP2000161227A (en) * 1998-11-20 2000-06-13 Fujitsu General Ltd Delivery valve for compressor
JP2002242862A (en) * 2001-02-20 2002-08-28 Fujitsu General Ltd Scroll compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03134285A (en) * 1989-10-18 1991-06-07 Hitachi Ltd Sealed type variable speed scroll compressor
JPH04287889A (en) * 1991-03-15 1992-10-13 Hitachi Ltd Rotary compressor
JPH07189942A (en) * 1993-12-28 1995-07-28 Matsushita Electric Ind Co Ltd Scroll compressor
JP2000161227A (en) * 1998-11-20 2000-06-13 Fujitsu General Ltd Delivery valve for compressor
JP2002242862A (en) * 2001-02-20 2002-08-28 Fujitsu General Ltd Scroll compressor

Also Published As

Publication number Publication date
KR20040026214A (en) 2004-03-30

Similar Documents

Publication Publication Date Title
US6893229B2 (en) Vacuum preventing device of scroll compressor
KR100795957B1 (en) Counterflow prevention apparatus for hermetic compressor
KR870002005B1 (en) A silencer of compressor
JPH10103243A (en) Valve structure of compressor
KR100469466B1 (en) Valve damping apparatus scroll compressor
JP2005508480A (en) Discharge valve and compressor using the same
KR20030045876A (en) Apparatus for compressing fluid
KR100332801B1 (en) Apparatus for preventing vacuum compression of scroll compressor
KR100343728B1 (en) Apparatus for preventing inversion of scroll compressor
KR100273441B1 (en) Swivel scroll reverse rotation prevention device of scroll compressor
KR100531899B1 (en) Apparatus for reducing noise scroll compressor
KR100511329B1 (en) Apparatus for protecting gas couvterflow scroll compressor
KR100400578B1 (en) Discharge structure of compressor valve assembly
KR100332772B1 (en) Apparatus for preventing gas antiflow of scroll compressor
KR100311385B1 (en) Flowing backward preventing valve for scroll compressor
KR20040091364A (en) Apparatus for protecting overcompress of scroll compressor
KR20010077208A (en) Discharge valve noise reduction structure for sealed type rotary compressor
KR20010077207A (en) Discharge valve noise reduction structure for sealed type rotary compressor
KR20020024456A (en) Apparatus for reducing noise of rotary compressor
KR100504877B1 (en) Structure of discharge valve assemble for liner compressor
KR20010076882A (en) Apparatus for preventing vacuum compression of scroll compressor
KR200394766Y1 (en) Scroll compressor having reverse rotation preventing part
KR20000056524A (en) Muffler apparatus of scroll compressor
JP2002242863A (en) Scroll compressor
KR20030018849A (en) Noise reducing structure for scroll 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: 20091230

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee