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KR100575808B1 - Oil accumulator in rotary compressor - Google Patents

Oil accumulator in rotary compressor Download PDF

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Publication number
KR100575808B1
KR100575808B1 KR1020040023519A KR20040023519A KR100575808B1 KR 100575808 B1 KR100575808 B1 KR 100575808B1 KR 1020040023519 A KR1020040023519 A KR 1020040023519A KR 20040023519 A KR20040023519 A KR 20040023519A KR 100575808 B1 KR100575808 B1 KR 100575808B1
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South Korea
Prior art keywords
oil
casing
compressor
rotary compressor
feeder
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Expired - Fee Related
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KR1020040023519A
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Korean (ko)
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KR20050098183A (en
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안지용
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엘지전자 주식회사
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    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • 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
    • F04C29/025—Lubrication; Lubricant separation using a lubricant pump
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
    • 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
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • 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
    • F04C2240/40—Electric motor
    • 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
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • 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

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

Abstract

본 발명은 로터리 압축기의 오일 집적 장치에 관한 것으로, 본 발명은 일정량의 오일을 채운 케이싱과, 케이싱의 내부에 고정한 구동모터의 회전자에 결합하여 편심 회전을 하면서 냉매가스를 압축하는 압축기구부에 회전력을 전달함과 아울러 그 내부에 오일유로를 형성하여 케이싱의 오일을 축방향으로 흡상하는 회전축과, 회전축의 하단에 설치하여 함께 회전을 하면서 케이싱의 오일을 펌핑하는 오일피더를 포함한 로터리 압축기에 있어서, 오일피더의 중심을 향해 그 중앙에 오목한 오일집적홈을 함몰지게 형성하는 오일집적판을 상기 케이싱의 바닥면과 오일피더 사이에 설치하여 이루어짐으로써, 압축기구부를 윤활하거나 전동기구부를 냉각하고 난 오일이나 압축기 외부로 유출되었다가 회수되는 오일이 상기한 오일집적판의 중앙으로 고여 일정 유면을 유지하도록 하고 이를 통해 적은 양의 오일로도 원활하게 공급되도록 하여 생산비용을 절감함과 아울러 오일부족으로 인한 압축기의 손상을 방지하여 안정성을 높일 수 있다.The present invention relates to an oil accumulator of a rotary compressor, and the present invention is coupled to a casing filled with a certain amount of oil and a rotor portion of the compressor for compressing refrigerant gas while eccentrically rotating by coupling to a rotor of a drive motor fixed inside the casing. In the rotary compressor including a rotating shaft for forming the oil flow path therein to draw the oil of the casing in the axial direction, and an oil feeder for pumping oil of the casing while rotating at the bottom of the rotating shaft, An oil collector plate is formed between the bottom surface of the casing and the oil feeder so as to recess the oil accumulation groove in the center toward the center of the oil feeder, thereby lubricating the compressor mechanism or cooling the power mechanism. The oil flowing out of the compressor and then recovered is collected in the center of the oil stack. Defined to maintain the oil level and to ensure that this small amount of smoothly supplied through the oil as well as reduce production costs and also can increase the stability to avoid damage to the compressor due to the oil shortage.

Description

로터리 압축기의 오일 집적 장치{OIL PILE FOR ROTARY COMPRESSOR}OIL PILE FOR ROTARY COMPRESSOR}

도 1은 종래 로터리 압축기의 일례를 보인 단면도,1 is a cross-sectional view showing an example of a conventional rotary compressor,

도 2는 종래 로터리 압축기에서 오일 흡상 상태를 보인 단면도,2 is a cross-sectional view showing an oil suction state in a conventional rotary compressor,

도 3은 본 발명 로터리 압축기의 일부를 보인 단면도,3 is a cross-sectional view showing a part of the rotary compressor of the present invention;

도 4는 본 발명 로터리 압축기에서 오일 집적 장치를 보인 사시도,4 is a perspective view showing an oil accumulating device in the rotary compressor of the present invention;

도 5는 본 발명 로터리 압축기에서 오일 흡상 상태를 보인 단면도.Figure 5 is a sectional view showing an oil suction state in the rotary compressor of the present invention.

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

1 : 케이싱 2 : 실린더1: casing 2: cylinder

3 : 메인베어링 4 : 서브베어링3: Main bearing 4: Sub bearing

5 : 회전축 5a : 오일유로5: shaft 5a: oil flow path

5b : 오일피더 6 : 롤링피스톤5b: oil feeder 6: rolling piston

10 : 오일집적판 11 : 오일집적홈10: oil integrated plate 11: oil integrated groove

12 : 오일통공12: oil through hole

본 발명은 로터리 압축기의 오일 흡상 장치에 관한 것으로서, 특히 오일피더 하측에 오일을 모을 수 있는 오일집적판을 설치하여서 된 로터리 압축기의 오일 흡상 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil suction device of a rotary compressor, and more particularly, to an oil suction device of a rotary compressor provided by installing an oil collecting plate capable of collecting oil under an oil feeder.

로터리 압축기는 전동기구부의 회전력을 이용하여 압축기구부가 편심 회전을 하면서 냉매가스를 흡입 압축하는 것으로, 도 1은 종래 로터리 압축기의 일례를 보인 단면도이다.The rotary compressor sucks and compresses refrigerant gas while the compressor mechanism rotates eccentrically by using the rotational force of the electric mechanism. FIG. 1 is a cross-sectional view showing an example of a conventional rotary compressor.

이에 도시한 바와 같이 종래의 로터리 압축기는, 소정량의 오일을 채우고 가스흡입관(SP)과 가스토출관(DP)을 연통 설치하는 케이싱(1)과, 케이싱(1)의 상측에 설치하여 회전력을 발생하는 전동기구부와, 케이싱(1)의 하측에 설치하여 상기 전동기구부에서 발생한 회전력으로 냉매를 압축하는 압축기구부로 구성하고 있다.As shown in the drawing, a conventional rotary compressor is provided with a casing (1) for filling a predetermined amount of oil and communicating a gas suction pipe (SP) and a gas discharge pipe (DP) with an upper side of the casing (1). And a compressor mechanism that is provided below the casing 1 and that compresses the refrigerant by the rotational force generated by the power mechanism.

케이싱(1)은 전동기구부와 압축기구부를 고정하는 본체케이스(1a)와, 본체케이스(1a)의 상하 양측을 복개하는 상부캡(1b) 및 하부캡(1c)으로 이루어져 있다.The casing 1 consists of a main body case 1a for fixing an electric mechanism part and a compression mechanism part, and an upper cap 1b and a lower cap 1c for covering both upper and lower sides of the main body case 1a.

전동구동부는 케이싱(1)의 내부에 고정하여 외부에서 전원을 인가하는 고정자(Ms)와, 고정자(Ms)의 내부에 일정 공극을 두고 배치하여 상기한 고정자(Ms)와 상호 작용하면서 회전하는 회전자(Mr)로 이루어져 있다.The electric drive unit rotates while interacting with the stator Ms by fixing the inside of the casing 1 to stator Ms for applying power from the outside, and having a predetermined gap inside the stator Ms. It consists of electrons (Mr).

압축기구부는 환형으로 형성하여 케이싱(1)의 내부에 설치하는 실린더(2)와, 실린더(2)의 상하 양측을 복개하여 함께 내부공간(V)을 형성하는 메인베어링(3) 및 서브베어링(4)과, 회전자(2)에 압입하고 메인베어링(3)과 서브베어링(4)에 지지되어 회전력을 전달하는 회전축(5)과, 회전축(5)의 편심부에 회전 가능하게 결합하여 실린더(2)의 내부공간(V)에서 선회하면서 냉매를 압축하는 롤링피스톤(6)과, 롤링피스톤(6)의 외주면에 압접하도록 실린더(2)에 반경방향으로 이동 가능하게 결합하 여 상기 실린더(2)의 내부공간을 흡입실과 압축실로 구획하는 베인(미도시)과, 메인베어링(3)의 중앙부근에 구비한 토출포트(3a) 선단에 개폐 가능하게 결합하여 압축실에서 토출되는 냉매가스를 제한하는 토출밸브조립체(7)와, 토출밸브조립체(7)를 수용하도록 공명실을 구비하여 메인베어링(3)의 외측면에 설치하는 머플러(8)로 이루어져 있다.Compressor part is formed in an annular shape and the cylinder (2) to be installed in the casing (1), the main bearing (3) and the sub-bearing to cover the upper and lower sides of the cylinder (2) together to form the inner space (V) ( 4), the rotary shaft 5, which is press-fitted to the rotor 2 and supported by the main bearing 3 and the sub-bearing 4, and transmits rotational force, and rotatably coupled to the eccentric portion of the rotary shaft 5 Rolling piston 6 for compressing the refrigerant while turning in the inner space (V) of (2) and radially movable coupling to the cylinder (2) to be pressed against the outer peripheral surface of the rolling piston (6) A vane (not shown) which divides the internal space of 2) into a suction chamber and a compression chamber, and a refrigerant gas discharged from the compression chamber by opening and closing are coupled to the tip of the discharge port 3a provided near the center of the main bearing 3. Resonance chamber is provided to accommodate the restriction of the discharge valve assembly (7) and the discharge valve assembly (7). And it consists of the muffler (8) provided on the outer surface of the main bearing (3).

회전축(5)은 그 내부에 축방향으로 관통하여 오일을 흡상하도록 오일유로(5a)를 형성하고, 오일유로(5a)의 하단에는 케이싱(1)의 바닥면에 채운 오일을 펌핑하도록 오일피더(5b)를 설치하고 있다.The rotary shaft 5 penetrates in the axial direction therein to form an oil flow path 5a so as to suck up oil, and at the lower end of the oil flow path 5a to pump oil filled in the bottom surface of the casing 1. 5b) is installed.

도면중 미설명 부호인 2a는 흡입구, 8a는 토출공이다.In the figure, reference numeral 2a denotes a suction port, and 8a denotes a discharge hole.

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

즉, 전동기구부의 고정자(Ms)에 전원을 인가하여 회전자(Mr)가 회전하면, 압축기구부의 회전축(5)이 회전자(Mr)와 함께 회전하고, 롤링피스톤(6)이 실린더(2)의 내부공간(V)에서 편심 회전하며, 롤링피스톤(6)의 편심 회전에 따라 냉매가스가 흡입실로 흡입되어 일정압력까지 지속적으로 압축되다가 압축실 압력이 케이싱(1)내의 압력보다 고압이 되는 순간 메인베어링(3)의 토출포트(3a)와 머플러(8)를 통해 케이싱(1)으로 토출된다.That is, when the rotor (Mr) is rotated by applying power to the stator (Ms) of the electric mechanism part, the rotating shaft (5) of the compression mechanism part rotates together with the rotor (Mr), and the rolling piston (6) is the cylinder (2). Eccentrically rotates in the inner space (V), and the refrigerant gas is sucked into the suction chamber according to the eccentric rotation of the rolling piston (6) and continuously compressed to a predetermined pressure, and the compression chamber pressure becomes higher than the pressure in the casing (1). Instantaneous discharge is carried out to the casing 1 via the discharge port 3a and the muffler 8 of the main bearing 3.

이때, 도 2에서와 같이 회전축(5)이 고속으로 회전을 하면서 하단의 오일피더(5b)가 케이싱(1)의 바닥면에 고인 오일을 펌핑하고, 이 오일은 오일유로(5a)를 따라 상단으로 흡상되면서 중간의 오일구멍(미도시)을 통해 메인베어링(3)과 서브베어링(4)의 베어링면으로 공급되거나 일부는 상단에서 비산되어 전동기구부를 냉 각하는 것이었다.At this time, as the rotary shaft 5 rotates at a high speed as shown in FIG. 2, the lower oil feeder 5b pumps oil accumulated on the bottom surface of the casing 1, and the oil is topped along the oil passage 5a. While being sucked up to the bearing surface of the main bearing (3) and the sub-bearing (4) through the oil hole (not shown) in the middle or part was scattered from the top to cool the power mechanism.

그러나, 상기와 같은 종래 로터리 압축기에 있어서는, 오일을 수용하는 케이싱(1)의 하부캡(1c)이 압축기의 설치시 균형을 잡기 위하여 비교적 넓고 편평하게 형성됨에 따라 오일에 오일피더(5b)가 잠기도록 하기 위하여는 다량의 오일이 필요하게 될 뿐만 아니라 압축기의 구동시 일부 오일이 냉매가스와 함께 냉동사이클장치로 유출되는 점을 고려하면 더욱 많은 오일이 필요하게 되는 것은 물론 자칫 오일부족을 야기하여 마찰부재의 손상을 초래할 우려도 있었다.However, in the conventional rotary compressor as described above, the oil feeder 5b is submerged in oil as the lower cap 1c of the casing 1 containing oil is formed relatively wide and flat to balance the compressor. In order to ensure that a large amount of oil is required, in addition to the fact that some oil is leaked to the refrigeration cycle system along with the refrigerant gas when the compressor is driven, more oil is needed and the friction member is caused by oil shortage. There was also the risk of causing damage.

본 발명은 상기와 같은 종래 로터리 압축기가 가지는 문제점을 감안하여 안출한 것으로, 오일의 최초 필요량을 낮춰 생산원가를 절감할 수 있을 뿐만 아니라 적은 오일을 주입하고도 효과적으로 오일을 공급할 수 있도록 하는 로터리 압축기의 오일 집적 장치를 제공하려는데 본 발명의 목적이 있다.The present invention has been made in view of the problems of the conventional rotary compressor as described above, and reduces the production cost by lowering the initial required amount of oil, as well as the rotary compressor to supply the oil effectively with less oil It is an object of the present invention to provide an oil accumulator.

본 발명의 목적을 달성하기 위하여, 일정량의 오일을 채운 케이싱과, 케이싱의 내부에 고정한 구동모터의 회전자에 결합하여 편심 회전을 하면서 냉매가스를 압축하는 압축기구부에 회전력을 전달함과 아울러 그 내부에 오일유로를 형성하여 케이싱의 오일을 축방향으로 흡상하는 회전축과, 회전축의 하단에 설치하여 함께 회전을 하면서 케이싱의 오일을 펌핑하는 오일피더를 포함한 로터리 압축기에 있어서, 오일피더의 중심을 향해 그 중앙에 오목한 오일집적홈을 함몰지게 형성하는 오일집적판을 상기 케이싱의 바닥면과 오일피더 사이에 설치하여 이루어지는 것을 특징으로 하는 로터리 압축기의 오일 집적 장치를 제공한다.In order to achieve the object of the present invention, coupled to the rotor of the casing filled with a certain amount of oil, and the rotor of the drive motor fixed to the inside of the casing while transmitting the rotational force to the compression mechanism to compress the refrigerant gas while eccentric rotation A rotary compressor including an oil flow path formed at an oil passage in the axial direction to suck up the oil in the casing, and an oil feeder installed at the lower end of the rotation shaft to rotate the oil feeder to pump oil in the casing. Provided is an oil accumulator of a rotary compressor, wherein an oil accumulator plate is formed between the bottom face of the casing and the oil feeder to form a concave oil accumulator groove in the center thereof.

이하, 본 발명에 의한 로터리 압축기의 오일 집적 장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.Hereinafter, the oil accumulator of the rotary 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 로터리 압축기의 일부를 보인 단면도이고, 도 4는 본 발명 로터리 압축기에서 오일 집적 장치를 보인 사시도이며, 도 5는 본 발명 로터리 압축기에서 오일 흡상 상태를 보인 단면도이다.Figure 3 is a cross-sectional view showing a part of the rotary compressor of the present invention, Figure 4 is a perspective view showing an oil accumulator in the rotary compressor of the present invention, Figure 5 is a cross-sectional view showing an oil suction state in the rotary compressor of the present invention.

이에 도시한 바와 같이 본 발명에 의한 로터리 압축기의 오일 집적 장치는, 케이싱(1)의 하반부에 설치하여 초기 오일주입시는 물론 압축기의 구동시 회수되는 오일이 상기한 케이싱(1)의 바닥면에서 일정 높이 이상에 고이도록 함으로써 오일을 보다 원활하게 공급하고자 하는 것으로, 이를 위해 케이싱(1)은 원통모양으로 형성하여 전동기구부와 압축기구부를 상하 양측에 고정 설치하는 본체케이스(1a)의 상하 양측을 상부캡(1b) 및 하부캡(1c)으로 복개하되, 하부캡(1c)의 상측 내주면에 원판 모양으로 된 오일집적판(10)을 설치하여 이루어진다.As shown in the drawing, the oil accumulator of the rotary compressor according to the present invention is installed in the lower half of the casing 1, and oil recovered at the time of initial oil injection and at the time of driving of the compressor is disposed on the bottom surface of the casing 1. In order to supply the oil more smoothly by a predetermined height or more, for this purpose, the casing 1 is formed in a cylindrical shape so that the upper and lower sides of the main body case 1a are fixed to the upper and lower sides of the electric mechanism part and the compression mechanism part. Covered with the upper cap (1b) and the lower cap (1c), it is made by installing an oil-cold plate 10 of the disc shape on the upper inner peripheral surface of the lower cap (1c).

오일집적판(10)은 도 4에서와 같이 테두리가 케이싱(1)의 내주면에 접하는 원판모양으로 형성하되 주변의 오일이 가급적이면 회전축(5)의 오일유로(5a) 하단에 구비한 오일피더(5b)의 근처로 모일 수 있도록 중심으로 갈수록 오목한 포물곡선 형상으로 형성한다.The oil integrated plate 10 is formed in the shape of a disc that borders the inner circumferential surface of the casing 1 as shown in FIG. 4, but if the surrounding oil is preferably, an oil feeder provided at the bottom of the oil passage 5a of the rotating shaft 5 ( It forms in a concave parabolic shape toward the center so that it can gather near 5b).

또, 오일집적판(10)은 그 중앙에 오일이 집중적으로 고일 수 있도록 더욱 곡률이 큰 반구 형상의 오일집적홈(11)을 형성하는 것이 바람직하다. 이 오일집적홈(11)은 그 직경이 오일피더(5b)의 직경보다는 크게 형성하는 것이 오일을 광범위하게 집적하는데 바람직하다.In addition, it is preferable that the oil accumulation plate 10 forms a hemispherical oil-integrated groove 11 having a greater curvature so that oil can be concentrated in the center thereof. It is desirable for the oil lump groove 11 to have a larger diameter than the diameter of the oil feeder 5b in order to accumulate oil extensively.

또, 오일집적판(10)은 케이싱(1)의 바닥면, 즉 오일집적판(10)과 하부캡(1c)의 바닥면 사이로도 일정량의 오일이 저장되었다가 필요할 때 넘쳐 오일집적판(10)의 상면으로 유도되도록 복수 개의 오일통공(12)을 원주방향으로 나란하게 형성한다. 이 오일통공(12)은 가급적 오일피더(5b) 근처의 오일이 케이싱(1)의 바닥으로 유출되지 않도록 오일집적판(10)의 외주연에 형성하는 것이 바람직하다.In addition, the oil collector plate 10 is stored between the bottom surface of the casing (1), that is, between the oil collector plate 10 and the bottom surface of the lower cap (1c), a certain amount of oil is overflowed when necessary, the oil collector plate 10 A plurality of oil through holes 12 are formed side by side in the circumferential direction so as to be guided to the top surface of The oil through hole 12 is preferably formed at the outer periphery of the oil collecting plate 10 so that oil near the oil feeder 5b does not flow out to the bottom of the casing 1.

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 2는 실린더, 2a는 흡입구, 3은 메인베어링, 3a는 토출포트, 4는 서브베어링, 6은 롤링피스톤, 7은 토출밸브조립체, 8은 머플러, 8a는 토출공, SP는 가스토출관, V는 내부공간이다.In the figures, 2 is a cylinder, 2a is an inlet port, 3 is a main bearing, 3a is a discharge port, 4 is a sub bearing, 6 is a rolling piston, 7 is a discharge valve assembly, 8 is a muffler, 8a is a discharge hole, and SP Is gasoline discharge tube and V is internal space.

상기와 같은 본 발명 로터리 압축기의 오일 집적 장치는 다음과 같은 작용 효과가 있다.The oil accumulator of the rotary compressor of the present invention as described above has the following effects.

즉, 전동기구부에 전원이 인가되어 회전축(5)이 회전을 하면, 회전축(5)의 편심부에 결합한 롤링피스톤(6)이 실린더(2)의 내부공간(V)에서 선회운동을 하면서 그 내부공간(V)의 체적을 변화시키고, 이에 따라 냉매가스가 실린더(2)의 흡입구(2a)를 통해 내부공간으로 흡입되었다가 롤링피스톤(6)을 따라 이동을 하다가 베인(미도시)에 막혀 압축되어 메인베어링(3)의 토출포트(3a)와 머플러(8)의 토출공(8a)을 통해 케이싱(1)으로 토출된다.That is, when the power is applied to the transmission mechanism to rotate the rotary shaft 5, the rolling piston 6 coupled to the eccentric portion of the rotary shaft 5 is pivoting in the inner space (V) of the cylinder (2) By changing the volume of the space V, the refrigerant gas is sucked into the inner space through the inlet port 2a of the cylinder 2, and then moves along the rolling piston 6 and is blocked by a vane (not shown). And discharged to the casing 1 through the discharge port 3a of the main bearing 3 and the discharge hole 8a of the muffler 8.

이때, 회전축(5)의 오일유로(5a) 하단에 구비한 오일피더(5b)가 함께 회전을 하여 케이싱(1)의 오일을 펌핑하고, 이 오일은 오일유로(5a)를 따라 흡상되어 일부는 오일구멍(미도시)을 통해 각 베어링면으로 공급되는 반면 일부는 오일유로(5a) 의 상단에서 비산되어 전동기구부를 냉각한다.At this time, the oil feeder 5b provided at the lower end of the oil passage 5a of the rotary shaft 5 rotates together to pump the oil of the casing 1, and this oil is sucked along the oil passage 5a and partially While supplied to each bearing surface through an oil hole (not shown), some are scattered from the upper end of the oil passage 5a to cool the electric machine part.

이렇게 오일유로를 통해 흡상되어 베어링면을 윤활하거나 구동모터를 냉각한 오일은 물론 냉매가스와 함께 냉동사이클장치로 유출되었다가 다시 회수되는 오일은 케이싱의 내주면이나 각종 부품의 외주면을 타고 흘러 내리다가 오일집적판에 고이게 되는데, 이 오일집적판이 중심부가 함몰지도록 형성됨에 따라 회수되는 오일은 오일집적홈을 중심으로 오일집적판의 중심부에 고여 비록 적은 양이더라도 일정한 유면을 유지하여 오일피더를 통해 원활하게 펌핑 공급되는 것이다.The oil that is sucked up through the oil channel to lubricate the bearing surface or cools the driving motor, as well as the refrigerant gas that flows out to the refrigeration cycle system together with the refrigerant gas, is recovered and flows down the inner circumference of the casing or the outer circumference of the various parts. It is accumulated on the integrated plate. As the oil accumulating plate is formed to dent the center, the recovered oil collects at the center of the oil accumulating plate around the oil accumulating groove and maintains a constant oil level even though a small amount is pumped smoothly through the oil feeder. It is supplied.

본 발명에 의한 로터리 압축기의 오일 집적 장치는, 케이싱의 하반부에 중심으로 함몰진 오일집적판을 설치함으로써, 압축기구부를 윤활하거나 전동기구부를 냉각하고 난 오일이나 압축기 외부로 유출되었다가 회수되는 오일이 상기한 오일집적판의 중앙으로 고여 일정 유면을 유지하도록 하고 이를 통해 적은 양의 오일로도 원활하게 공급되도록 하여 생산비용을 절감함과 아울러 오일부족으로 인한 압축기의 손상을 방지하여 안정성을 높일 수 있다.The oil accumulator of the rotary compressor according to the present invention is provided with an oil-collecting plate recessed around the lower half of the casing, thereby lubricating the compressor mechanism or cooling the power mechanism, or oil that is discharged to the outside of the compressor and recovered. It maintains a constant oil level in the middle of the oil collector plate, thereby smoothly supplying even a small amount of oil, thereby reducing the production cost and improving the stability by preventing damage to the compressor due to oil shortage. .

Claims (4)

삭제delete 일정량의 오일을 채운 케이싱과, 케이싱의 내부에 고정한 구동모터의 회전자에 결합하여 편심 회전을 하면서 냉매가스를 압축하는 압축기구부에 회전력을 전달함과 아울러 그 내부에 오일유로를 형성하여 케이싱의 오일을 축방향으로 흡상하는 회전축과, 회전축의 하단에 설치하여 함께 회전을 하면서 케이싱의 오일을 펌핑하는 오일피더를 포함한 로터리 압축기에 있어서,It is coupled to the casing filled with oil and the rotor of the drive motor fixed inside the casing to transmit rotational force to the compression mechanism to compress the refrigerant gas while eccentric rotation, and the oil flow path is formed inside the casing oil. In the rotary compressor comprising a rotary shaft that sucks in the axial direction, and an oil feeder which is installed at the lower end of the rotary shaft to rotate together to pump the oil of the casing, 오일피더의 중심을 향해 그 중앙에 오목한 오일집적홈을 함몰지게 형성하는 오일집적판을 상기 케이싱의 바닥면과 오일피더 사이에 설치하여 이루어지는 것을 특징으로 하는 로터리 압축기의 오일 집적 장치.An oil accumulator of a rotary compressor, characterized in that an oil accumulator plate is formed between the bottom face of the casing and the oil feeder so as to recess the oil accumulator groove in the center toward the center of the oil feeder. 제2항에 있어서,The method of claim 2, 오일집적판의 외주연에는 케이싱의 바닥면에 고인 오일이 상기한 오일집적판의 상측으로 유도하도록 오일통공을 형성하는 것을 특징으로 하는 로터리 압축기의 오일 집적 장치.The oil accumulator of the rotary compressor, characterized in that the oil permeation is formed on the outer periphery of the oil collector plate to guide the oil accumulated in the bottom surface of the casing to the upper side of the oil collector plate. 제2항에 있어서,The method of claim 2, 오일집적판은 그 테두리가 케이싱에 접하고 그 케이싱에서 포물곡선을 그리면서 중심으로 오목하게 형성하는 것을 특징으로 하는 로터리 압축기의 오일 집접 장치.The oil collecting plate of the rotary compressor, characterized in that the edge is in contact with the casing and formed in the center concave while drawing a parabolic curve in the casing.
KR1020040023519A 2004-04-06 2004-04-06 Oil accumulator in rotary compressor Expired - Fee Related KR100575808B1 (en)

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