KR20060003214A - Valve-plate for compressor - Google Patents

Valve-plate for compressor Download PDF

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Publication number
KR20060003214A
KR20060003214A KR1020040052021A KR20040052021A KR20060003214A KR 20060003214 A KR20060003214 A KR 20060003214A KR 1020040052021 A KR1020040052021 A KR 1020040052021A KR 20040052021 A KR20040052021 A KR 20040052021A KR 20060003214 A KR20060003214 A KR 20060003214A
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South Korea
Prior art keywords
valve
valve seat
discharge
compressor
impact
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KR1020040052021A
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Korean (ko)
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정용연
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삼성광주전자 주식회사
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Priority to KR1020040052021A priority Critical patent/KR20060003214A/en
Publication of KR20060003214A publication Critical patent/KR20060003214A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • 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
    • F04B39/02—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02—Lubrication
    • F04B39/0284—Constructional details, e.g. reservoirs in the casing
    • F04B39/0292—Lubrication of pistons or cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • F05B2260/962—Preventing, counteracting or reducing vibration or noise by means creating "anti-noise"
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

Abstract

본 발명은 밀폐형 압축기용에 관한 것으로, 밸브플레이트(24)의 토출공(24b) 주위에는 돌출 형성되어 전체적으로 환형상을 갖는 밸브시트(24c)가 마련된다. 이러한 밸브시트(24c)는 토출밸브(26)와 밀착되면서 토출밸브(26)의 밀폐력을 향상시키게 된다. 또한, 밸브시트(24c)는 내부에 오목하게 형성된 충격감쇠홈(24d)을 구비하고, 밸브시트(24c)의 폭은 종래보다 넓게 형성되게 된다. 이에 따라, 토출밸브(26)와 밸브시트(24c)의 충돌 시 밸브시트(24c)에 가해지는 단위 면적당 충격량이 감소되어 밸브시트(24c)의 파손 및 소음을 현저히 줄일 수 있게 된다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor, and has a valve seat 24c protrudingly formed around the discharge hole 24b of the valve plate 24 and having an annular shape as a whole. The valve seat 24c is in close contact with the discharge valve 26 to improve the sealing force of the discharge valve 26. In addition, the valve seat 24c is provided with an impact attenuation groove 24d formed concave therein, and the width of the valve seat 24c is formed to be wider than before. Accordingly, the impact amount per unit area applied to the valve seat 24c when the discharge valve 26 and the valve seat 24c collide with each other is reduced, thereby significantly reducing damage and noise of the valve seat 24c.

Description

압축기용 밸브플레이트{Valve-Plate For Compressor}Valve Plate for Compressor {Valve-Plate For Compressor}

도 1은 본 발명에 따른 밀폐형 압축기의 전체 구조를 도시한 측단면도이다.1 is a side cross-sectional view showing the entire structure of a hermetic compressor according to the present invention.

도 2는 본 발명에 따른 밀폐형 압축기에 마련된 밸브플레이트 및 밸브플레이트에 결합되는 밸브를 보인 분해 사시도이다.Figure 2 is an exploded perspective view showing a valve plate and a valve coupled to the valve plate provided in the hermetic compressor according to the present invention.

도 3은 본 발명에 따른 밀폐형 압축기에 마련된 밸브플레이트를 보인 평면도이다.3 is a plan view showing a valve plate provided in the hermetic compressor according to the present invention.

도 4는 도 3의 A-A선에 따른 단면도이다.4 is a cross-sectional view taken along the line A-A of FIG.

도 5는 도 4에 있어 충격감쇠홈에 오일이 충진된 것을 보인 단면도이다.5 is a cross-sectional view showing the oil filled in the impact damping groove in FIG.

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

10 : 밀폐용기, 20 : 압축부,10: sealed container, 20: compression part,

21 : 실린더블록, 22 : 피스톤,21: cylinder block, 22: piston,

23 : 실린더헤드, 24 : 밸브플레이트,23: cylinder head, 24: valve plate,

24a : 흡입공, 24b : 토출공,24a: suction hole, 24b: discharge hole,

24c : 밸브시트, 24d : 충격감쇠홈,24c: valve seat, 24d: impact damping groove,

25 : 흡입밸브, 26 : 토출밸브.25: suction valve, 26: discharge valve.

본 발명은 밀폐형 압축기에 관한 것으로, 보다 상세하게는 냉매의 유동을 제어하도록 흡입밸브 및 토출밸브가 각각 설치되는 압축기용 밸브플레이트에 관한 것이다.The present invention relates to a hermetic compressor, and more particularly to a valve plate for a compressor is provided with a suction valve and a discharge valve to control the flow of the refrigerant.

일반적으로 압축기는 회전하는 회전축에 의해 왕복 운동되는 피스톤이 실린더의 내부로 유입되는 냉매를 압축하여 토출하는 장치로써, 냉매를 압축하는 압축장치와 이를 구동시키는 구동장치로 마련된다.In general, a compressor is a device for compressing and discharging refrigerant introduced into a cylinder by a piston reciprocating by a rotating shaft, and is provided with a compression device for compressing a refrigerant and a driving device for driving the refrigerant.

압축장치는 압축실을 형성하는 실린더와, 그 내부에서 왕복 운동하는 피스톤을 구비하고, 실린더의 일측에는 외부와 연통된 흡입실과 토출실이 형성된 실린더헤드가 설치된다. 그리고, 실린더와 실린더헤드 사이에는 흡입공과 토출공이 형성된 밸브플레이트가 설치되고, 상기 밸브플레이트에는 흡입공을 개폐하는 흡입밸브와, 토출공을 개폐하는 토출밸브가 설치된다. 이때, 밸브플레이트의 토출공 주위에는 환 형상의 밸브시트가 돌출 형성되며, 이러한 밸브시트를 통해 토출밸브와 토출공의 밀폐력을 향상시킬 수 있게 된다.The compression apparatus includes a cylinder forming a compression chamber and a piston reciprocating therein, and one side of the cylinder is provided with a cylinder head having an intake chamber and a discharge chamber communicating with the outside. In addition, a valve plate having a suction hole and a discharge hole is provided between the cylinder and the cylinder head. The valve plate is provided with a suction valve for opening and closing the suction hole and a discharge valve for opening and closing the discharge hole. At this time, an annular valve seat is protruded around the discharge hole of the valve plate, and the sealing force of the discharge valve and the discharge hole can be improved through the valve seat.

다음은 이러한 종래 구성의 압축기에 따른 토출 동작을 설명한다.The following describes the discharge operation according to the compressor of this conventional configuration.

회전축이 구동되면, 피스톤은 압축실 내를 진퇴하게 된다. 그리고 피스톤의 압축작용에 의해 실린더의 냉매압이 실린더헤드 토출실측의 압력보다 상승되면, 토출밸브가 개방되어 냉매가 실린더헤드의 토출실측으로 토출되게 되며, 이후 실린더의 냉매압이 토출실측의 압력보다 하강되면 토출밸브는 탄성 복원되면서 밸브시트에 밀착되어 토출공을 폐쇄하게 된다. When the axis of rotation is driven, the piston moves back and forth in the compression chamber. When the refrigerant pressure of the cylinder rises above the pressure of the cylinder head discharge chamber by the compression of the piston, the discharge valve is opened so that the refrigerant is discharged to the discharge chamber side of the cylinder head. When lowered, the discharge valve is elastically restored and close to the valve seat to close the discharge hole.                         

그러나, 이와 같이 작동되는 종래 압축기는 토출밸브가 토출공을 폐쇄하면서 밸브시트와 충돌하게 되어 소음을 유발하게 되며, 심지어 밸브시트가 파손되는 경우도 발생된다. 이에 따라, 정숙한 압축기의 운전을 이루기 어려울 뿐만 아니라, 압축기의 신뢰성이 저하되는 문제점이 있다.However, the conventional compressor operated as described above causes the discharge valve to collide with the valve seat while closing the discharge hole, causing noise, and even causing the valve seat to break. Accordingly, not only it is difficult to achieve the operation of the quiet compressor, but also there is a problem that the reliability of the compressor is lowered.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 그 목적은 토출 측 구조를 개선하여 토출밸브에 의한 충격량을 저감할 수 있는 압축기용 밸브플레이트를 제공하는 것이다.The present invention has been made to solve such a problem, and an object thereof is to provide a valve plate for a compressor capable of reducing the amount of impact caused by the discharge valve by improving the discharge side structure.

이러한 목적을 달성하기 위한 본 발명에 따른 밀폐형 압축기는; 토출밸브에 의해 개폐되는 토출공과, 상기 토출공 주위에 돌출 형성되어 상기 토출밸브와 밀착되는 밸브시트와, 상기 밸브시트 내부에 형성된 충격감쇠홈을 포함하는 것을 특징으로 한다.Hermetic compressor according to the present invention for achieving this object is; And a discharge hole that is opened and closed by a discharge valve, a valve seat protruding around the discharge hole and in close contact with the discharge valve, and an impact damping groove formed in the valve seat.

또한, 상기 밸브시트는 환 형상으로 마련되고, 상기 충격감쇠홈은 상기 밸브시트 내부에 원주방향으로 형성된 것을 특징으로 한다.In addition, the valve seat is provided in an annular shape, the impact damping groove is characterized in that formed in the circumferential direction inside the valve seat.

또한, 상기 충격감쇠홈에는 충격감소를 배가시키도록 오일이 충진되는 것을 특징으로 한다.In addition, the impact damping groove is characterized in that the oil is filled to double the impact reduction.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부 도면을 참조하여 상세히 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 밀폐형 압축기의 전체 구조를 도시한 측단면도이다. 1 is a side cross-sectional view showing the entire structure of a hermetic compressor according to the present invention.                     

도 1를 참조하면, 본 발명에 따른 밀폐형 압축기는, 밀폐공간을 형성하는 밀폐용기(10)의 내부에 냉매를 압축할 수 있도록 마련된 압축장치(20)와, 이 압축장치(20)를 구동하는 구동장치(30)를 구비한다.Referring to FIG. 1, the hermetic compressor according to the present invention includes a compression device 20 provided to compress refrigerant in an interior of a sealed container 10 forming a closed space, and a driving device of the compression device 20. The drive device 30 is provided.

압축부(20)는 내부에 압축실(21a)이 형성된 실린더블록(21)과, 압축실(21a) 내부를 왕복 운동하여 냉매를 흡입, 압축, 토출시키는 피스톤(22)을 구비하고, 실린더블록(21)의 일측에는 내부에 흡입실(23a) 및 토출실(23b)이 각각 형성된 실린더헤드(23)가 마주하도록 배치된다. 그리고 실린더(21)와 실린더헤드(23) 사이에는 압축실(21a)이 흡입실(23a) 및 토출실(23b)과 연통되도록 내부에 흡입공(24a)과 토출공(24b)이 형성된 밸브플레이트(24)가 개재된다.The compression unit 20 includes a cylinder block 21 having a compression chamber 21a formed therein and a piston 22 for reciprocating the inside of the compression chamber 21a to suck, compress, and discharge the refrigerant. One side of the 21 is disposed so as to face the cylinder head 23 in which the suction chamber 23a and the discharge chamber 23b are formed, respectively. In addition, a valve plate having a suction hole 24a and a discharge hole 24b formed therein so that the compression chamber 21a communicates with the suction chamber 23a and the discharge chamber 23b between the cylinder 21 and the cylinder head 23. (24) is interposed.

구동장치(30)는 압축실(21a)에서 냉매의 압축이 이루어지도록 피스톤(22)을 구동 시키는 것으로, 전원을 인가받아 자장을 형성하는 고정자(31)와, 고정자(31)의 내부에 이격 설치되어 고정자(31)와 전자기적으로 상호 작용하는 회전자(32)를 구비한다. 그리고, 회전자(32)의 중심에는 회전자(32)와 함께 회전하는 회전축(33)이 설치되고, 회전축(33)에 연결된 커넥팅로드(34)를 통해 회전운동이 직선운동으로 변환되면서 피스톤(22)은 압축실(21a) 내를 진퇴하게 된다.The driving device 30 drives the piston 22 to compress the refrigerant in the compression chamber 21a. The drive device 30 is spaced apart from the stator 31 to which magnetic power is applied to form a magnetic field. And a rotor 32 which electromagnetically interacts with the stator 31. And, in the center of the rotor 32, a rotating shaft 33 which rotates together with the rotor 32 is installed, the rotary motion is converted into a linear motion through a connecting rod 34 connected to the rotating shaft 33 piston ( 22 moves forward and backward in the compression chamber 21a.

한편, 밸브플레이트(24)에는 흡입공(24a)과 토출공(24b)을 통한 냉매의 흡입 및 토출을 조절할 수 있도록 흡입밸브(25)와 토출밸브(26)가 설치되는데, 본 발명은 밸브플레이트(24)의 토출측을 특징으로 하므로 이하 도 2를 참조하여 토출 구조에 대해 상세히 설명한다.On the other hand, the valve plate 24 is provided with a suction valve 25 and the discharge valve 26 to adjust the suction and discharge of the refrigerant through the suction hole (24a) and the discharge hole (24b), the present invention is a valve plate Since the discharge side of 24 is characterized, the discharge structure will be described in detail with reference to FIG.

도 2를 참조하면, 토출밸브(26)는 밸브플레이트(24)의 실린더헤드(23) 측에 설치되는 박판금속으로써, 그 일단은 밸브플레이트(24)에 고정되고, 타단은 벤딩가능하도록 자유단으로 마련되는데, 타단은 토출공(24b)을 덮을 수 있도록 원형으로 마련된다. 그리고 토출밸브(26)의 외측으로는 토출밸브(26)의 개방각을 제한하는 스토퍼(27)와, 토출밸브(26) 및 스토퍼(27)를 밸브플레이트(24)에 고정하기 위한 리테이너(28)가 순차적으로 결합된다.Referring to FIG. 2, the discharge valve 26 is a thin plate metal installed on the cylinder head 23 side of the valve plate 24, one end of which is fixed to the valve plate 24 and the other end of which is free to bend. It is provided, the other end is provided in a circular shape to cover the discharge hole (24b). On the outside of the discharge valve 26, a stopper 27 for limiting the opening angle of the discharge valve 26, and a retainer 28 for fixing the discharge valve 26 and the stopper 27 to the valve plate 24. ) Are sequentially combined.

다음은 도 3을 참조하여, 토출밸브(26)가 설치되는 밸브플레이트(24)에 대해 보다 상세히 설명한다.Next, referring to FIG. 3, the valve plate 24 in which the discharge valve 26 is installed will be described in more detail.

밸브플레이트(24)의 토출공(24b) 주위에는 돌출 형성되어 전체적으로 환형상을 갖는 밸브시트(24c)가 마련된다. 이러한 밸브시트(24c)는 토출밸브(26)와 밀착되면서 토출밸브(26)의 밀폐력을 향상시키게 된다.A valve seat 24c protrudes around the discharge hole 24b of the valve plate 24 and has an annular shape as a whole. The valve seat 24c is in close contact with the discharge valve 26 to improve the sealing force of the discharge valve 26.

또한, 밸브시트(24c)는 내부에 오목하게 형성된 충격감쇠홈(24d)을 구비하고, 밸브시트(24c)의 폭은 종래보다 넓게 형성되게 된다. 이에 따라, 토출밸브(26)와 밸브시트(24c)의 충돌 시 밸브시트(24c)에 가해지는 단위 면적당 충격량이 감소되어 밸브시트(24c)의 파손 및 소음을 현저히 줄일 수 있게 된다.In addition, the valve seat 24c is provided with an impact attenuation groove 24d formed concave therein, and the width of the valve seat 24c is formed to be wider than before. Accordingly, the impact amount per unit area applied to the valve seat 24c when the discharge valve 26 and the valve seat 24c collide with each other is reduced, thereby significantly reducing damage and noise of the valve seat 24c.

또한, 도 4와 같이, 충격감쇠홈(24d)에는 오일(L)이 충진되게 되며, 이러한 오일(L)을 통해 충격감쇠홈(24d)의 충격 감쇠 효과를 배가시킬 수 있게 된다.In addition, as shown in Figure 4, the impact damping groove (24d) is filled with oil (L), it is possible to double the impact damping effect of the impact damping groove (24d) through this oil (L).

다음에는 본 발명에 따른 밀폐형 압축기의 동작 및 효과를 설명한다.Next, the operation and effects of the hermetic compressor according to the present invention will be described.

구동장치(30)에 전원이 인가되면 회전자(32)와 함께 회전축(33)이 회전되고, 회전축(33)의 회전으로 피스톤(22)이 압축실(21a) 내부를 왕복 운동하며 실린더헤드(23)의 흡입실(23a)로부터 냉매를 흡입하여 압축하게 된다. When power is applied to the drive device 30, the rotating shaft 33 rotates together with the rotor 32, and the piston 22 reciprocates inside the compression chamber 21a by the rotation of the rotating shaft 33, and the cylinder head ( The refrigerant is sucked from the suction chamber 23a of the 23 and compressed.                     

그리고 압축된 냉매는 토출밸브(26)를 개방시켜 밸브플레이트(24)의 토출공(24b)을 통해 실린더헤드(23)의 토출실(23b) 측으로 토출되게 된다.The compressed refrigerant is discharged to the discharge chamber 23b side of the cylinder head 23 through the discharge hole 24b of the valve plate 24 by opening the discharge valve 26.

그리고, 토출이 완료되며 토출밸브(26)는 탄성 복원되면서 밸브플레이트(24)의 토출공(24b)을 덮게 되는데, 이때 밸브시트(24c)에는 충격감쇠홈(24d)이 형성되어 있으므로, 토출밸브(26)가 밸브시트(24c)에 가하는 단위 면적당 충격량이 감소되게 된다.The discharge is completed and the discharge valve 26 is elastically restored to cover the discharge hole 24b of the valve plate 24. At this time, since the impact damping groove 24d is formed in the valve seat 24c, the discharge valve is discharged. The amount of impact per unit area that 26 is applied to the valve seat 24c is reduced.

따라서, 토출밸브(26)와 밸브시트(24c)의 충돌 시 발생되는 소음이 저감되고, 밸브시트(24c)가 파손되는 것을 방지할 수 있게 된다.Therefore, the noise generated when the discharge valve 26 collides with the valve seat 24c is reduced, and the valve seat 24c can be prevented from being damaged.

한편, 회전축(33)의 회전으로 인하여 밀폐용기(10) 저면의 오일(L)은 상승된 후 회전축(33) 외측으로 분사되어 각 부품들을 윤활하게 되는데, 오일(L)은 충격감쇠홈(24d)에도 충진되게 되어 충격감쇠홈(24d)의 충격량 감소 효과를 배가시키게 된다.On the other hand, due to the rotation of the rotary shaft 33, the oil (L) of the bottom surface of the sealed container 10 is raised and sprayed to the outside of the rotary shaft 33 to lubricate each part, the oil (L) is a shock attenuation groove 24d ) Also doubles the impact reduction effect of the impact damping groove (24d).

이상에서 상세히 설명한 바와, 본 발명에 따른 밀폐형 압축기는 밸브플레이트의 밸브시트에 충격감쇠홈이 형성된다.As described above in detail, the hermetic compressor according to the present invention has an impact damping groove formed in the valve seat of the valve plate.

이에 따라, 토출밸브와 밸브시트의 충돌 시 밸브시트에 가해지는 단위 면적당 충격량이 감소되어 밸브시트의 파손 및 소음을 줄일 수 있게 된다.As a result, the impact amount per unit area applied to the valve seat when the discharge valve collides with the valve seat is reduced, thereby reducing damage and noise of the valve seat.

또한, 충격감쇠홈에는 내부 부품의 윤활을 위해 사용되는 오일이 충진되게 되며, 이러한 오일을 통해 밸브시트에 가해지는 충격량을 현저히 줄일 수 있게 되어 정숙한 압축기의 운전을 이룰 수 있게 되는 효과가 있다.In addition, the impact damping groove is filled with the oil used for lubrication of the internal parts, it is possible to significantly reduce the amount of impact applied to the valve seat through this oil has the effect of achieving a quiet compressor operation.

Claims (3)

토출밸브에 의해 개폐되는 토출공과,A discharge hole opened and closed by a discharge valve, 상기 토출공 주위에 돌출 형성되어 상기 토출밸브와 밀착되는 밸브시트와,A valve seat protruding around the discharge hole and in close contact with the discharge valve; 상기 밸브시트 내부에 형성된 충격감쇠홈을 포함하는 것을 특징으로 하는 압축기용 밸브플레이트.Valve plate for a compressor, characterized in that it comprises an impact damping groove formed in the valve seat. 제 1항에 있어서,The method of claim 1, 상기 밸브시트는 환 형상으로 마련되고,The valve seat is provided in an annular shape, 상기 충격감쇠홈은 상기 밸브시트 내부에 원주방향으로 형성된 것을 특징으로 하는 압축기용 밸브플레이트.The impact damping groove is a valve plate for the compressor, characterized in that formed in the circumferential direction inside the valve seat. 제 2항에 있어서,The method of claim 2, 상기 충격감쇠홈에는 충격감소를 배가시키도록 오일이 충진되는 것을 특징으로 하는 압축기용 밸브플레이트.The valve plate for a compressor, characterized in that the impact damping groove is filled with oil to double the impact reduction.
KR1020040052021A 2004-07-05 2004-07-05 Valve-plate for compressor KR20060003214A (en)

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