KR20050017933A - Valve impact absorption device for reciprocating compressor - Google Patents

Valve impact absorption device for reciprocating compressor

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Publication number
KR20050017933A
KR20050017933A KR1020030055503A KR20030055503A KR20050017933A KR 20050017933 A KR20050017933 A KR 20050017933A KR 1020030055503 A KR1020030055503 A KR 1020030055503A KR 20030055503 A KR20030055503 A KR 20030055503A KR 20050017933 A KR20050017933 A KR 20050017933A
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KR
South Korea
Prior art keywords
valve
piston
compression space
suction
cylinder
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Application number
KR1020030055503A
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Korean (ko)
Other versions
KR100524724B1 (en
Inventor
김형진
김형석
김동한
노기원
김병직
Original Assignee
엘지전자 주식회사
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Priority to KR10-2003-0055503A priority Critical patent/KR100524724B1/en
Publication of KR20050017933A publication Critical patent/KR20050017933A/en
Application granted granted Critical
Publication of KR100524724B1 publication Critical patent/KR100524724B1/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
    • 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
    • F04B39/0005—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 adaptations of pistons
    • F04B39/0016—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 adaptations of pistons with valve arranged in the piston
    • 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
    • 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
    • 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
    • F04B39/1066—Valve plates

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

Abstract

PURPOSE: An impact buffering device of a valve of a reciprocating compressor is provided to decrease striking noise of the valve, and to prevent breakage of the valve against impact in opening and closing the suction valve by absorbing collision between the suction valve and the piston with the elastic member and buffering shock with the buffer member. CONSTITUTION: A reciprocating compressor is composed of a cylinder for forming the compression space, a piston(110) sliding in the compression space of the cylinder, guiding fluid through the gas passage to the compression space by linearly reciprocating with a mover of a reciprocating motor and varying the volume of the compression space, a suction valve(120) detachably combined with the end of the piston to regulate suction of fluid into the compression space, and a discharge valve detachably installed in the end of the cylinder to open and close the compression space of the cylinder in reciprocating the piston. A valve impact buffering device comprises an elastic member(130) mounted in the end of the piston corresponding to the suction valve to absorb impact, and a buffer member(140) mounted in the end of the elastic member to absorb collision between the elastic member and the suction valve.

Description

왕복동식 압축기의 밸브충격 완충장치{VALVE IMPACT ABSORPTION DEVICE FOR RECIPROCATING COMPRESSOR}VALVE IMPACT ABSORPTION DEVICE FOR RECIPROCATING COMPRESSOR}

본 발명은 왕복동식 압축기에 관한 것으로, 특히 흡입밸브의 개폐시 발생하는 밸브타음과 밸브충격을 줄일 수 있는 왕복동식 압축기의 밸브충격 완충장치에 관한 것이다.The present invention relates to a reciprocating compressor, and more particularly, to a valve shock absorber of a reciprocating compressor that can reduce the valve sound and the valve impact generated when the intake valve is opened and closed.

일반적으로 왕복동식 압축기는 피스톤이 실린더의 내부에서 직선으로 왕복운동을 하면서 가스를 흡입 압축하여 토출시키는 것으로, 도 1은 종래 왕복동식 압축기의 일례를 보인 종단면도이다.In general, a reciprocating compressor is a piston in a reciprocating motion in a straight line inside the cylinder to suck and compress the gas discharged, Figure 1 is a longitudinal cross-sectional view showing an example of a conventional reciprocating compressor.

이에 도시한 바와 같이 종래의 왕복동식 압축기는, 가스흡입관(SP) 및 가스토출관(DP)을 연통하는 케이싱(10)과, 케이싱(10)의 내부에 탄력 지지하여 설치하는 프레임 유니트(20)와, 프레임 유니트(20)에 지지하여 케이싱(10)의 내부에 고정하는 왕복동식 모터(30)와, 왕복동식 모터(30)에 기구적으로 연결하여 프레임 유니트(20)에 지지하는 압축 유니트(40)와, 왕복동식 모터(30)의 가동자와 압축 유니트의 피스톤을 탄력 지지하여 공진을 유도하는 공진스프링 유니트(50)로 구성하고 있다.As shown in the drawing, the conventional reciprocating compressor includes a casing 10 for communicating the gas suction pipe SP and the gas discharge pipe DP, and a frame unit 20 elastically supported inside the casing 10. And a reciprocating motor 30 supported by the frame unit 20 and fixed to the inside of the casing 10, and a compression unit supported by the frame unit 20 by being mechanically connected to the reciprocating motor 30 ( 40 and a resonant spring unit 50 for elastically supporting the mover of the reciprocating motor 30 and the piston of the compression unit to induce resonance.

압축 유니트(40)는 프레임 유니트(20)에 고정 설치하는 실린더(41)와, 왕복동식 모터(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 흡입통구(42b)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.The compression unit 40 is coupled to the cylinder 41 fixed to the frame unit 20 and the mover 33 of the reciprocating motor 30 to reciprocate in the compression space P of the cylinder 41. A suction valve 43 for limiting suction of the refrigerant gas while opening and closing the piston 42 and the suction port 42b of the piston 42 and the discharge side of the cylinder 41. And a discharge valve assembly 44 mounted on the discharge space to limit the discharge of the compressed gas while opening and closing the compression space P.

피스톤(42)은 도 2에서와 같이 그 내부에 관통 형성하는 흡입유로(42a)와, 흡입유로(42a)의 끝단에서 피스톤(42)의 선단면으로 여러 개 관통 형성하는 흡입통구(42b)와, 왕복동식 모터(30)의 가동자(33)와 결합하도록 후방단에서 플랜지 모양으로 형성하는 연결부(42c)로 이루어져 있다.As shown in Fig. 2, the piston 42 has a suction passage 42a formed therethrough, and a plurality of suction passages 42b formed through the piston 42 at the end of the suction passage 42a. , The coupling portion 42c is formed in a flange shape at the rear end to engage with the mover 33 of the reciprocating motor 30.

흡입통구(42b)는 흡입밸브(43)의 형상에 따라 다양하게 형성할 수 있는데, 도 2에 도시한 흡입밸브는 후술할 흡입밸브의 개폐부(43b)가 "양팔"모양의 리드밸브로 이루어지는 점을 감안하여 피스톤(42)의 일측 가장자리에 수 개를 몰아 형성하고 있다.The suction port 42b may be formed in various ways according to the shape of the suction valve 43. The suction valve shown in FIG. 2 is a point where the opening / closing portion 43b of the suction valve, which will be described later, is formed of a “two arms” reed valve. In view of this, several pieces are formed by driving one side edge of the piston 42.

흡입밸브(43)는 강탄성 재질로 형성하는 것으로 중앙에는 피스톤(42)의 선단면에 고정하는 고정부(43a)를 형성하고 그 고정부(43a)의 가장자리에는 피스톤(42)의 흡입통구(42b)를 개폐하도록 "양팔"모양으로 연장하는 개폐부(43b)를 형성하고 있다.The suction valve 43 is formed of a rigid elastic material and forms a fixing portion 43a fixed to the front end surface of the piston 42 at the center thereof, and an inlet port of the piston 42 at the edge of the fixing portion 43a. The opening-and-closing portion 43b extending in a "both arms" shape is formed to open and close 42b).

도면중 미설명 부호인 21은 전방프레임, 22는 중간프레임, 23은 후방 프레임, 31은 외측고정자, 32는 내측고정자, 42d는 체결홈, 43c는 체결공, B는 체결볼트이다.In the drawings, 21 is a front frame, 22 is an intermediate frame, 23 is a rear frame, 31 is an outer stator, 32 is an inner stator, 42d is a fastening groove, 43c is a fastening hole, and B is a fastening bolt.

상기와 같은 종래 왕복동식 압축기는 다음과 같이 동작된다.The conventional reciprocating compressor as described above is operated as follows.

즉, 왕복동식 모터(30)에 전원을 인가하면, 그 왕복동식 모터의 외측 고정자(31)와 내측 고정자(32) 사이에 플럭스(flux)가 형성되어 가동자(33)가 플럭스의 방향에 따라 움직이면서 공진스프링 유니트(50)에 의해 직선으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 직선으로 왕복운동을 하면서 그 실린더(41)의 압축공간(P)에 압력차를 발생시킴으로써 냉매가스를 가스흡입관(SP)을 통해 상기한 압축공간(P)으로 흡입하여 일정 압력까지 압축하였다가 가스토출관(DP)을 통해 토출하는 일련의 과정을 반복하는 것이었다.That is, when power is applied to the reciprocating motor 30, a flux is formed between the outer stator 31 and the inner stator 32 of the reciprocating motor, so that the mover 33 moves along the direction of the flux. While moving, the resonant spring unit 50 reciprocates in a straight line, while the piston 42 reciprocates in a straight line in the cylinder 41, and the pressure difference in the compression space P of the cylinder 41. By generating the refrigerant gas was sucked into the compression space (P) through the gas suction pipe (SP) to compress up to a predetermined pressure and to discharge through the gas discharge pipe (DP) was repeated.

그러나, 상기와 같은 종래 왕복동식 압축기에 있어서는, 흡입밸브(43)의 개폐부(43b)가 피스톤(42)의 선단면에 착탈하면서 흡입통구(43b)를 개폐하므로 이 과정에서 흡입밸브(43)가 피스톤의(42)의 선단면에 충돌하면서 밸브타음을 유발함과 아울러 심하면 밸브가 충격에 의해 파손될 우려가 있었다.However, in the conventional reciprocating compressor as described above, the intake valve 43 is opened and closed in this process since the opening and closing portion 43b of the intake valve 43 opens and closes the inlet port 43b. There was a risk of causing the valve sound while colliding with the front end surface of the piston 42, and if the valve was severe, the valve might be damaged by the impact.

본 발명은 상기와 같은 종래 왕복동식 압축기가 가지는 문제점을 감안하여 안출한 것으로, 흡입밸브의 개폐시 발생하는 밸브타음과 밸브충격을 줄일 수 있는 왕복동식 압축기의 밸브충격 완충장치를 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 valve shock shock absorber of the reciprocating compressor that can reduce the valve sound and valve shock generated when the intake valve is opened and closed. There is a purpose.

본 발명의 목적을 달성하기 위하여, 압축공간을 형성하는 실린더와, 실린더의 압축공간에 미끄러지게 삽입하고 그 내부에 가스유로를 형성하여 왕복동식 모터의 가동자와 함께 직선으로 왕복운동을 하면서 가스유로를 통해 유체를 압축공간으로 유도함과 아울러 그 압축공간의 체적을 가변하는 피스톤과, 피스톤의 선단면에 착탈하도록 결합하여 유체가 압축공간으로 흡입하는 것을 조절하기 위한 흡입밸브와, 실린더의 선단면에 착탈하도록 구비하여 피스톤의 왕복운동시 실린더의 압축공간을 개폐하는 토출밸브를 포함한 왕복동식 압축기에 있어서, 흡입밸브와 대향하는 피스톤의 선단면에 흡입밸브의 충돌력을 흡수하기 위한 탄성부재를 장착하고, 이 탄성부재의 끝단에는 탄성부재와 흡입밸브의 충돌을 흡수하는 완충부재를 부착하여 이루어지는 것을 특징으로 하는 왕복동식 압축기의 밸브충격 완충장치를 제공한다.In order to achieve the object of the present invention, the cylinder to form a compression space, and the gas flow path while slidingly inserted into the compression space of the cylinder and the gas passage therein while linearly reciprocating with the mover of the reciprocating motor Through the piston to guide the fluid into the compression space and to vary the volume of the compression space, and to be detachably attached to the distal end surface of the piston, a suction valve for controlling the suction of the fluid into the compression space, In the reciprocating compressor including a discharge valve to be detachable to open and close the compression space of the cylinder during the reciprocating movement of the piston, an elastic member for absorbing the impact force of the suction valve is mounted on the front end surface of the piston facing the intake valve At the end of the elastic member, a cushioning member for absorbing a collision between the elastic member and the suction valve is attached. It provides a reciprocating valve of the shock absorber acting compressor, characterized in that.

이하, 본 발명에 의한 왕복동식 압축기의 밸브충격 완충장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.Hereinafter, the valve shock absorber of the reciprocating compressor according to the present invention will be described in detail based on the embodiment shown in the accompanying drawings.

도 3은 본 발명 왕복동식 압축기에서 압축유니트를 보인 종단면도이고, 도 4는 본 발명 왕복동식 압축기에서 피스톤과 흡입밸브를 보인 분해사시도이며, 도 5는 본 발명 왕복동식 압축기에서 흡입밸브가 닫히는 과정을 보인 상세도이다.Figure 3 is a longitudinal sectional view showing a compression unit in the reciprocating compressor of the present invention, Figure 4 is an exploded perspective view showing a piston and a suction valve in the reciprocating compressor of the present invention, Figure 5 is a process of closing the suction valve in the reciprocating compressor of the present invention This is a detailed view.

이에 도시한 바와 같이 본 발명에 의한 왕복동식 압축기의 밸브충격 완충장치는, 프레임 유니트(도 1에 도시)(20)에 삽입 고정하고 그 내부에 압축공간(P)을 형성하는 실린더(41)와, 실린더(41)의 압축공간(P)에 미끄러지게 삽입하고 그 내부에 가스유로를 형성하여 왕복동식 모터(도 1에 도시)(30)의 가동자와 함께 직선으로 왕복운동을 하면서 압축공간(P)의 체적을 가변하는 피스톤(110)과, 피스톤(110)의 선단면에 착탈하여 흡입통구(112)를 개폐하는 흡입밸브(120)와, 피스톤(110)의 흡입통구(112) 주변에 삽입하여 흡입밸브의 닫힘시 그 충돌력을 흡수하는 탄성부재(130)와, 탄성부재(130)의 끝단에 설치하여 흡입밸브와의 접촉충격을 완화시키는 완충부재(140)를 포함한다.As shown therein, the valve shock absorber of the reciprocating compressor according to the present invention includes a cylinder 41 which is inserted into and fixed to a frame unit (shown in FIG. 1) 20 and forms a compression space P therein. , And slides into the compression space P of the cylinder 41 and forms a gas flow path therein so as to reciprocate linearly with the mover of the reciprocating motor (shown in FIG. A piston 110 for varying the volume of P), a suction valve 120 for opening and closing the suction port 112 by attaching and detaching to the front end surface of the piston 110, and around the suction port 112 of the piston 110; It includes an elastic member 130 that is inserted into the suction valve when the suction valve is closed, and a shock absorbing member 140 installed at the end of the elastic member 130 to mitigate contact shock with the suction valve.

피스톤(110)은 그 내부에 축방향으로 흡입유로(111)를 관통 형성하고, 흡입유로(111)의 안쪽 끝단에는 그 흡입유로(111)에 연통하여 선단면으로 관통하도록 수 개의 흡입통구(112)를 형성한다.The piston 110 is formed through the suction flow path 111 in the axial direction therein, the inner end of the suction flow path 111 to communicate with the suction flow path 111 through several suction holes 112 so as to penetrate through the front end surface. ).

흡입통구(112)는 흡입밸브(120)의 형상에 따라 다양하게 형성할 수 있는데, 도 4에 도시한 흡입통구(112)는 후술할 흡입밸브(120)의 개폐부(122)가 "양팔"모양의 리드밸브로 이루어지는 점을 감안하여 피스톤(110)의 일측 가장자리에 수 개를 몰아 형성한다.The inlet port 112 may be formed in various ways according to the shape of the inlet valve 120, the inlet port 112 shown in Figure 4 is the opening and closing portion 122 of the inlet valve 120 to be described later "shape arms" shape In consideration of the point consisting of the reed valve of the piston 110 is formed by driving a number of edges.

또, 흡입통구(112)의 주변에는 상기한 탄성부재를 삽입할 수 있도록 스프링장착홈(114)을 형성하되, 흡입통구(112)가 도 4에서와 같이 복수 개 인 경우에는 그 흡입통구(112)의 사이에 상기한 스프링장착홈(114)을 형성하는 것이 충격량을 흡수하는데 보다 바람직하다.In addition, a spring mounting groove 114 is formed in the periphery of the suction port 112 so that the elastic member can be inserted therein, and the suction port 112 is provided when there are a plurality of suction holes 112 as shown in FIG. 4. It is more preferable to form the spring mounting groove 114 between the above to absorb the impact amount.

흡입밸브(120)는 강탄성 재질로 형성하는 것으로 중앙에는 피스톤(110)의 선단면에 고정하는 고정부(121)를 형성하고 그 고정부(121)의 가장자리에는 피스톤(110)의 흡입통구(112)를 개폐하도록 "양팔"모양으로 연장하는 개폐부(122)를 형성한다.The suction valve 120 is formed of a rigid elastic material and forms a fixing part 121 fixed to the front end surface of the piston 110 at the center thereof, and an inlet port of the piston 110 at the edge of the fixing part 121. Opening and closing portion 122 extends in the form of a "two arms" to open and close 112.

탄성부재(130)는 압축코일스프링으로 이루어지되 이 탄성부재(130)의 탄성은 흡입밸브(120)의 닫힘시 그 흡입밸브(120)의 실링배면에 가해지는 압축가스의 가스력 보다는 작도록 하여 압축시 흡입밸브(120)의 개폐부(122)가 들떠 압축가스가 누설되는 것을 방지할 수 있도록 하는 것이 바람직하다.The elastic member 130 is made of a compression coil spring, but the elasticity of the elastic member 130 is smaller than the gas force of the compressed gas applied to the sealing back of the suction valve 120 when the suction valve 120 is closed It is preferable to prevent the leakage of the compressed gas by the opening and closing portion 122 of the suction valve 120 during compression.

완충부재(140)는 고무 또는 테프론과 같이 소정의 탄성을 가지는 재질을 상기한 탄성부재(130)에 압입 고정하되, 그 탄성부재(130)와의 접촉면에는 고정돌기(141)를 형성하는 반면 흡입밸브(120)와의 접촉면은 편평하게 형성하거나 또는 도 6에서와 같이 흡입밸브(120)에 대해 가스스프링의 역할을 할 수 있도록 가스수용홈(142)을 형성할 수도 있다.The shock absorbing member 140 press-fits and secures a material having a predetermined elasticity, such as rubber or Teflon, to the elastic member 130, while forming a fixing protrusion 141 on the contact surface with the elastic member 130, while a suction valve The contact surface with the 120 may be formed flat or may form a gas receiving groove 142 to serve as a gas spring with respect to the intake valve 120 as shown in FIG.

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 21은 전방프레임, 22는 중간프레임, 23은 후방 프레임, 31은 외측고정자, 32는 내측고정자, 44A 및 44B 및 44C는 토출커버 및 토출밸브 및 밸브스프링, 113은 체결홈, 123는 체결공, B는 체결볼트이다.In the drawings, 21 is a front frame, 22 is an intermediate frame, 23 is a rear frame, 31 is an outer stator, 32 is an inner stator, 44A and 44B and 44C are discharge covers and discharge valves and valve springs, and 113 is a fastening groove. 123 is the fastening hole and B is the fastening bolt.

상기와 같은 본 발명 왕복동식 압축기의 밸브충격 완충장치는 다음과 같은 작용 효과를 갖는다.The valve shock absorber of the reciprocating compressor of the present invention as described above has the following effects.

즉, 왕복동식 모터(도 1에 도시)(30)의 가동자가 피스톤(42)과 함께 직선으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(110)의 내부에서 직선으로 왕복운동을 하면서 그 실린더(110)의 압축공간(P)에 압력차를 발생시켜 냉매가스를 압축공간(P)으로 흡입하여 압축하였다가 토출하는 일련의 과정을 반복한다.That is, the mover of the reciprocating motor (shown in FIG. 1) 30 reciprocates linearly with the piston 42, and with the piston 42 reciprocating linearly inside the cylinder 110. A pressure difference is generated in the compression space P of the cylinder 110, and a series of processes of sucking and compressing the refrigerant gas into the compression space P is repeated.

여기서, 피스톤(42)이 후진하면서 흡입행정을 실시하는 과정에서 흡입밸브(120)의 개폐부(122)는 피스톤(110)의 흡입유로(111)와 흡입통구(112)를 통해 압축공간(P)으로 흡입될려는 냉매가스에 밀려 고정부(121)를 중심으로 젖혀지면서 열렸다가 피스톤(110)이 다시 전진하면서 압축행정을 실시하는 과정에서 젖혀졌던 개폐부(122)가 흡입통구(112)를 닫아 압축공간(P)을 밀폐시키게 된다.Here, the opening and closing portion 122 of the suction valve 120 is the compression space (P) through the suction passage 111 and the suction port 112 of the piston 110 in the process of performing the suction stroke while the piston 42 reverses. The opening and closing portion 122, which was opened while being pushed around the fixing part 121 by being pushed by the refrigerant gas to be sucked to the center and the piston 110 is advanced again, performs the compression stroke, closes the suction port 112, and is compressed. The space P is sealed.

이때, 흡입밸브(120)가 닫히면서 피스톤(110)의 선단면에 충돌하여 높은 밸브타음을 유발할 우려가 있으나, 피스톤(110)의 스프링장착홈(114)에 구비하여 스폰지 역할을 하는 탄성부재(130)와 완충부재(140)에 먼저 부딪혀 충돌력이 흡수되도록 함으로써 흡입밸브(120)의 밸브타음과 밸브충격을 상당히 줄일 수 있다.At this time, while the intake valve 120 is closed, it may collide with the front end surface of the piston 110 to cause a high valve sound, but is provided in the spring mounting groove 114 of the piston 110 to act as a sponge (sponge member) By hitting the 130 and the shock absorbing member 140 so that the impact force is absorbed, the valve sound and the valve impact of the suction valve 120 can be significantly reduced.

한편, 전술한 바와 같이 완충부재(140)의 밸브 접촉면에 가스수용홈(142)을 형성하는 경우에는 압축공간의 냉매가스 일부가 상기한 가스소용홈(142)에 채워져 일종의 가스스프링 역할을 하면서 밸브타음이나 밸브충격을 더욱 효과적으로 줄일 수 있다.On the other hand, when the gas receiving groove 142 is formed on the valve contact surface of the buffer member 140 as described above, a portion of the refrigerant gas in the compression space is filled in the gas small groove 142 and acts as a kind of gas spring valve It can reduce the hit sound and valve shock more effectively.

또 한편, 도면으로 도시하지는 않았으나 흡입밸브(120)의 개폐부(122)가 대향하는 피스톤(110)의 선단면에 탄성부재(130) 외에 다수 개의 미세한 완충홈(미도시)을 형성할 수도 있다.In addition, although not shown in the drawings, a plurality of fine buffer grooves (not shown) may be formed in addition to the elastic member 130 on the front end surface of the piston 110 opposite to the opening and closing portion 122 of the suction valve 120.

이 경우 완충홈(미도시)에 흡입가스 또는 압축가스의 일부가 잔류하여 흡입밸브(120)의 닫힘시 흡입밸브(120)와 피스톤(110) 사이의 충돌소음이나 충격을 더욱 효과적으로 감쇄시킬 수 있다.In this case, a portion of the suction gas or the compressed gas remains in the buffer groove (not shown), so that the collision noise or the impact between the suction valve 120 and the piston 110 can be more effectively attenuated when the suction valve 120 is closed. .

본 발명에 의한 왕복동식 압축기의 밸브충격 완충장치는, 흡입밸브와 대향하는 피스톤의 선단면에 흡입밸브의 충돌력을 흡수하기 위한 탄성부재를 장착하고 이 탄성부재의 끝단에 완충부재를 장착하여 흡입밸브와 피스톤의 선단면 사이의 충격을 완충함으로써, 흡입밸브의 개폐시 그 흡입밸브가 피스톤의 선단면과 충돌하면서 발생할 수 있는 밸브타음을 줄이고 충격에 의해 흡입밸브가 파손하는 것을 방지하여 압축기의 신뢰성을 높일 수 있다.In the valve shock absorber of the reciprocating compressor according to the present invention, an elastic member for absorbing the collision force of the suction valve is mounted on the front end surface of the piston facing the suction valve, and the shock absorbing member is mounted on the end of the elastic member. By cushioning the impact between the valve and the front end of the piston, the compressor's reliability can be prevented by reducing the valve sound that can occur when the intake valve opens and closes with the front end of the piston. Can increase.

도 1은 종래 왕복동식 압축기의 일례를 보인 종단면도,1 is a longitudinal sectional view showing an example of a conventional reciprocating compressor;

도 2는 종래 왕복동식 압축기의 피스톤과 흡입밸브를 보인 분해사시도,2 is an exploded perspective view showing a piston and a suction valve of a conventional reciprocating compressor;

도 3은 본 발명 왕복동식 압축기에서 압축유니트를 보인 종단면도,Figure 3 is a longitudinal sectional view showing a compression unit in the reciprocating compressor of the present invention,

도 4는 본 발명 왕복동식 압축기에서 피스톤과 흡입밸브를 보인 분해사시도,Figure 4 is an exploded perspective view showing a piston and a suction valve in the reciprocating compressor of the present invention,

도 5는 본 발명 왕복동식 압축기에서 흡입밸브가 닫히는 과정을 보인 상세도,5 is a detailed view showing a process of closing the suction valve in the reciprocating compressor of the present invention,

도 6은 본 발명 왕복동식 압축기에서 완충부재의 변형예를 보인 사시도.Figure 6 is a perspective view showing a modification of the buffer member in the reciprocating compressor of the present invention.

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

110 : 피스톤 111 : 흡입유로110: piston 111: suction flow path

112 : 흡입통구 114 : 스프링장착홈112: suction port 114: spring mounting groove

120 : 흡입밸브 122 : 개폐부120: intake valve 122: opening and closing portion

130 : 탄성부재 140 : 완충부재130: elastic member 140: buffer member

141 : 고정돌기 142 : 가스수용홈141: fixing protrusion 142: gas receiving groove

Claims (3)

압축공간을 형성하는 실린더와, 실린더의 압축공간에 미끄러지게 삽입하고 그 내부에 가스유로를 형성하여 왕복동식 모터의 가동자와 함께 직선으로 왕복운동을 하면서 가스유로를 통해 유체를 압축공간으로 유도함과 아울러 그 압축공간의 체적을 가변하는 피스톤과, 피스톤의 선단면에 착탈하도록 결합하여 유체가 압축공간으로 흡입하는 것을 조절하기 위한 흡입밸브와, 실린더의 선단면에 착탈하도록 구비하여 피스톤의 왕복운동시 실린더의 압축공간을 개폐하는 토출밸브를 포함한 왕복동식 압축기에 있어서,It is inserted into the compression space of the cylinder and the cylinder to form a compression space, and the gas flow path is formed therein to reciprocate linearly with the mover of the reciprocating motor to guide the fluid into the compression space through the gas flow path. In addition, a piston having a variable volume of the compression space is coupled to the front end surface of the piston, and a suction valve for controlling the intake of the fluid into the compression space, and a removable valve at the front end surface of the cylinder to reciprocate the piston. In the reciprocating compressor including a discharge valve for opening and closing the compression space of the cylinder, 흡입밸브와 대향하는 피스톤의 선단면에 흡입밸브의 충돌력을 흡수하기 위한 탄성부재를 장착하고, 이 탄성부재의 끝단에는 탄성부재와 흡입밸브의 충돌을 흡수하는 완충부재를 장착하여 이루어지는 것을 특징으로 하는 왕복동식 압축기의 밸브충격 완충장치.An elastic member for absorbing the collision force of the suction valve is mounted on the front end surface of the piston facing the suction valve, and the end of the elastic member is equipped with a cushioning member for absorbing the collision between the elastic member and the suction valve. Valve shock absorber of the reciprocating compressor. 제1항에 있어서,The method of claim 1, 탄성부재는 피스톤의 가스유로 주변에 별도로 스프링장착홈을 형성하여 이 스프링장착홈에 삽입하는 것을 특징으로 하는 왕복동식 압축기의 밸브충격 완충장치.The elastic member is a valve shock absorber of the reciprocating compressor, characterized in that the spring mounting groove is formed separately around the gas flow path of the piston and inserted into the spring mounting groove. 제2항에 있어서,The method of claim 2, 완충부재의 밸브접촉면에는 소정 깊이의 가스수용홈을 음형지게 형성하는 것을 특징으로 하는 왕복동식 압축기의 밸브충격 완충장치.The valve shock absorber of the reciprocating compressor, characterized in that the valve contact surface of the shock absorbing member is formed negatively in the gas receiving groove of a predetermined depth.
KR10-2003-0055503A 2003-08-11 2003-08-11 Valve impact absorption device for reciprocating compressor KR100524724B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100621029B1 (en) * 2005-06-30 2006-09-08 엘지전자 주식회사 Device for protecting remove of buffer spring in reciprocating compressor
KR100690906B1 (en) * 2005-06-30 2007-03-09 엘지전자 주식회사 Device for protecting remove of buffer spring in reciprocating compressor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102649438B1 (en) * 2021-10-19 2024-03-20 주식회사 대우컴프레셔 Apparatus for valve of compressor and valve stopper thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100621029B1 (en) * 2005-06-30 2006-09-08 엘지전자 주식회사 Device for protecting remove of buffer spring in reciprocating compressor
KR100690906B1 (en) * 2005-06-30 2007-03-09 엘지전자 주식회사 Device for protecting remove of buffer spring in reciprocating compressor

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