KR19980026192U - Oil suction device of hermetic electric compressor - Google Patents

Oil suction device of hermetic electric compressor Download PDF

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Publication number
KR19980026192U
KR19980026192U KR2019960039052U KR19960039052U KR19980026192U KR 19980026192 U KR19980026192 U KR 19980026192U KR 2019960039052 U KR2019960039052 U KR 2019960039052U KR 19960039052 U KR19960039052 U KR 19960039052U KR 19980026192 U KR19980026192 U KR 19980026192U
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KR
South Korea
Prior art keywords
crankshaft
oil
electric compressor
hermetic electric
suction device
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Application number
KR2019960039052U
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Korean (ko)
Inventor
김건우
Original Assignee
구자홍
엘지전자 주식회사
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Priority to KR2019960039052U priority Critical patent/KR19980026192U/en
Publication of KR19980026192U publication Critical patent/KR19980026192U/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/02Lubrication
    • F04B39/0223Lubrication characterised by the compressor type
    • F04B39/023Hermetic compressors
    • F04B39/0238Hermetic compressors with oil distribution channels
    • F04B39/0246Hermetic compressors with oil distribution channels in the rotating shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/02Lubrication
    • F04B39/0223Lubrication characterised by the compressor type
    • F04B39/023Hermetic compressors
    • F04B39/0269Hermetic compressors with device for spraying lubricant or with mist lubrication

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

Abstract

본 고안은 밀폐형 전동 압축기의 오일흡상장치에 관한 것으로, 종래의 밀폐형 전동 압축기의 크랭크축에 프로펠러 및 피이스의 두 부품이 크랭크축에 결합되고, 또한, 피이스에 프로펠러를 삽입 후, 결합된 부품을 크랭크축에 결합하는 공정이었다.The present invention relates to an oil suction device of a hermetic electric compressor, and two parts of a propeller and a piece are coupled to the crankshaft of the crankshaft of a conventional hermetic electric compressor, and after the propeller is inserted into the piece, the combined parts It was a process of bonding to the crankshaft.

그러므로, 종래의 오일흡상장치는 부품 및 공정수가 많이 소요되어 시간 및 금전적인 손실을 발생하는 문제점을 가지고 있다.Therefore, the conventional oil suction device has a problem in that it takes a lot of parts and processes, causing time and money loss.

따라서, 이러한 문제점을 해결하기 위하여, 본 고안은 크랭크축의 내면에 오일을 흡상하여 비산시키는 나선형 오일홈을 형성함으로서, 종래처럼 프로펠러 및 피이스를 사용하지 않아 부품수 및 조립공수를 줄이는 효과를 갖는다.Therefore, in order to solve such a problem, the present invention forms a spiral oil groove that sucks and scatters oil on the inner surface of the crankshaft, thereby reducing the number of parts and the number of assembly operations by not using propellers and pieces.

Description

밀폐형 전동 압축기의 오일흡상장치Oil suction device of hermetic electric compressor

본 고안은 밀폐형 전동 압축기의 오일흡상장치에 관한 것으로, 특히 크랭크축의 내부면에 오일이 급유될 수 있도록 나선형 오일홈을 형성하여 실린더와 피스톤사이 및 상부셸에 원활하게 오일을 급유할 수 있도록 한, 밀폐형 전동 압축기의 오일흡상장치에 관한 것이다.The present invention relates to an oil suction device of a hermetic electric compressor, in particular, to form a spiral oil groove so that oil can be supplied to the inner surface of the crankshaft to smoothly supply oil between the cylinder and the piston and the upper shell, An oil suction device for a hermetic electric compressor.

도 1은 일반적인 밀폐형 전동 압축기의 내부를 도시한 단면도, 도 2는 종래의 밀페형 전동 압축기에서 크랭크축의 저부에 부착되어 있는 피이스와 프로펠러를 도시한 단면도를 나타낸 것이다.1 is a cross-sectional view showing the interior of a general hermetic electric compressor, Figure 2 is a cross-sectional view showing a piece and a propeller attached to the bottom of the crankshaft in a conventional hermetic electric compressor.

이에 도시한 바와 같이 종래의 밀폐형 전동 압축기의 구성은 제1도에서 전기적에너지를 기계적인 회전운동으로 변환시키는 회전자(2)와 고정자(3)가 있으며, 회전자(2)와 열박음 결합되어 있는 크랭크축(4)이 있다.As shown in the drawing, a conventional hermetic electric compressor includes a rotor 2 and a stator 3 for converting electrical energy into mechanical rotational motions in FIG. 1, and the shrinkage is coupled with the rotor 2. There is a crankshaft 4.

상기 크랭크축(4)은 스카치요크방식 또는 커넥팅로드방식으로 결합되어 있는 피스톤(5)이 있으며, 이 피스톤(5)은 실린더(6)내부를 왕복 운동하며, 실린더(6) 끝에는 냉매를 흡입.토출할 수 있도록 흡.토출부(12)가 있다.The crankshaft (4) has a piston (5) coupled to the scotch yoke or the connecting rod method, the piston (5) reciprocates inside the cylinder (6), the end of the cylinder (6) sucks the refrigerant. There is a suction / discharge part 12 so as to discharge.

상기 실린더(6)의 피스톤(5)과 헤드카바(10)등은 프레임(13)에 의해 지지되고 있으며, 전동기부와 결합되어 압추기 하부셸(8)에 지지스프링(7)에 의해 지지되어 있다.The piston (5) and the head cover (10) of the cylinder (6) are supported by the frame (13), and are coupled to the motor portion and supported by the support spring (7) on the pusher lower shell (8). have.

상기 압축기 하부셸(8)에 용접되어 압축기를 밀폐시키는 상부셸(9)이 있으며, 압축기 하부셸(8)내에는 압축기 운전시 운동부의 마찰저감 및 냉각작용을 하도록 일정량의 냉각유(11)가 있다.There is an upper shell (9) welded to the compressor lower shell (8) to seal the compressor. Inside the compressor lower shell (8), a certain amount of cooling oil (11) is provided to reduce friction and cool down the moving parts during the operation of the compressor. have.

도 2를 참조로, 특히 상기, 구성품 중에서 본 고안과 관련이 되는 압축기(1)의 크랭크축(4) 저부에 프로펠러(15)가 장착되어 있는 피이스(14)가 삽입되고 있다.With reference to Fig. 2, in particular, a piece 14 having a propeller 15 mounted thereon is inserted at the bottom of the crankshaft 4 of the compressor 1 according to the present invention among the components.

이 피이스(14)내에 있는 프롤펠러(15)의 작동으로 하부셸(8)에 고요있는 냉각유(11)를 크랭크축(4)의 급유홈(4-1)을 통해서 냉동유(11)가 펌핑되어 압축기(1)의 실린더(6)의 피스톤(5)사이 및 상부셸(9)에 냉동유(11)를 비산하게 구성되어 있다. 도면중 미설명부호 16은 크랭크축핀부를 나타낸 것이다.The cooling oil 11 which is still in the lower shell 8 by the operation of the propeller 15 in this piece 14 is transferred to the refrigeration oil 11 through the oil supply groove 4-1 of the crankshaft 4. Is pumped to scatter the refrigeration oil 11 between the pistons 5 of the cylinder 6 of the compressor 1 and between the upper shell 9. In the drawings, reference numeral 16 denotes a crankshaft pin portion.

이와 같이 구성된 종래의 밀폐형 전동 압축기는, 외부에서 교류전원이 고정자(3)에 인가되면 회전자가(2)가 회전하고, 이 회전자(2)에 결합되어 있는 크랭크축(4)이 회전하고, 여기에 스카치요크방식 또는 커넥팅로드방식으로 결합되어 있는 피스톤(5)이 실린더(6)내부를 왕복 운동하게 된다. 이 피스톤(5)의 왕복 운동에 따라 냉매가 흡,토출부(12)를 통하여 각각 흡입. 압축된다.In the conventional hermetic electric compressor configured as described above, when AC power is applied to the stator 3 from the outside, the rotor 2 rotates, and the crankshaft 4 coupled to the rotor 2 rotates, The piston (5) coupled to the scotch yoke method or the connecting rod method is to reciprocate the inside of the cylinder (6). In accordance with the reciprocating motion of the piston 5, the refrigerant is sucked through the suction and discharge portions 12, respectively. Is compressed.

상기 크랭크축(4)가 회전하면 크랭크축(4) 내부에 있는 프로펠라(15)의 작용으로 압축기 하부셸(8)내에 있는 냉동유(11)가 크랭크축(4)의 급유홈(4-1)을 통하여 크랭크축핀부(16)로 급유되고, 이 핀부(16)에서 냉동유(11)가 비산되어 실린더(6)와 피스톤(5)사이 및 상부셸(9)로 냉동유(11)가 비산되게 되는 것이다.When the crankshaft 4 rotates, the refrigeration oil 11 in the compressor lower shell 8 is supplied to the oil supply groove 4-1 of the crankshaft 4 by the action of the propeller 15 inside the crankshaft 4. Refrigerant oil is supplied to the crankshaft pin portion (16) through the crankshaft pin portion (16), and the refrigeration oil (11) is scattered from the pin portion (16), and between the cylinder (6) and the piston (5) and the upper shell (9) It will be scattered.

그러나, 종래의 밀폐형 전동 압축기의 오일흡상장치에서 보면 크랭크축에 프로펠러 및 피이스의 두 부품이 크랭크축에 결합되고, 또한, 피이스에 프로펠러를 삽입 후에 결합된 부품을 크랭크축에 결합하는 공정이었으므로, 부품 및 공정수가 많이 소요되어 시간 및 금전적인 손실을 발생하는 문제점을 가지고 있다.However, in the oil suction device of the conventional hermetic electric compressor, since the two parts of the propeller and the piece are coupled to the crankshaft, and the components are coupled to the crankshaft after the propeller is inserted to the crankshaft, As a result, a lot of parts and processes are consumed, causing a problem of time and money loss.

따라서, 본 고안의 목적은 크랭크축의 내부면에 오일을 급유될 수 있도록 나선형 홈을 형성하여 실린더와 피스톤사이 및 상부셸에 원활하게 오일이 급유할 수 있는 밀폐형 전동 압축기의 오일흡상장치를 제공함에 있다.Accordingly, an object of the present invention is to provide an oil suction device of a hermetic electric compressor in which a spiral groove is formed so that oil can be supplied to the inner surface of the crankshaft so that oil can be smoothly supplied between the cylinder and the piston and the upper shell. .

도 1은 일반적인 밀폐형 전동 압축기의 내부를 도시한 단면도.1 is a cross-sectional view showing the inside of a typical hermetic electric compressor.

도2는 종래의 밀페형 전동 압축기에서 크랭크축의 저부에 부착되어 있는 피이스와 프로펠러를 도시한 단면도.2 is a cross-sectional view showing a piece and a propeller attached to the bottom of the crankshaft in a conventional hermetic electric compressor.

도 3은 본 고안의 밀폐형 전동 압축기의 크랭크축 내부에 나선형 오일홈의 일부 부분만을 절취하여 도시한 단면도.3 is a cross-sectional view showing only a part of the spiral oil groove inside the crankshaft of the hermetic electric compressor of the present invention.

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

4: 크랭크축20: 나선형오일홈4: crankshaft 20: spiral oil groove

이와 같은 본 고안의 목적을 달성하기 위해서, 크랭크축의 내면에 오일을 흡상하여 비산시키는 나선형 오일홈을 형성하여 밀폐형 전동 압축기의 오일흡상장치가 제공된다.In order to achieve the object of the present invention, the oil suction device of the hermetic electric compressor is provided by forming a spiral oil groove to suck and scatter oil on the inner surface of the crankshaft.

이하, 본 고안에 의한 밀폐형 전동 압축기의 오일흡상장치를 첨부도면에 의거하여 설명하면 다음과 같다.Hereinafter, the oil suction device of the hermetic electric compressor according to the present invention will be described based on the accompanying drawings.

도 3은 본 고안의 밀폐형 전동 압축기의 크랭크축 내부에 나선형 오일홈의 일부 부분만을 절취하여 도시한 단면도를 나타낸 것으로, 종래의 기술과 동일한 것은 동일부호를 기입하여 설명한다.Figure 3 is a cross-sectional view showing only a part of the spiral oil groove in the crankshaft of the hermetic electric compressor of the present invention, the same as in the prior art will be described with the same reference numerals.

도 1 및 도 3을 참조로, 본 고안에 의한 밀폐형 전동 압축기의 크랭크축의 오일흡상장치는, 압축기(1)의 크랭크축(4)의 내면에 오일을 흡상하여 비산시키는 나선형 오일홈(20)을 형성한다.1 and 3, the oil suction device of the crankshaft of the hermetic electric compressor according to the present invention includes a spiral oil groove 20 for sucking and scattering oil on the inner surface of the crankshaft 4 of the compressor 1. Form.

상기 크랭크축(4)의 회전으로 하부셸(8)에 고요있는 냉동유(11)가 크랭크축(4) 내면에 형성되어 있는 나선형 오일홈(20)을 통해서 냉동유(11)가 펌핑되어 압축기(1)의 실린더(6)와 피스톤(5)사이 및 상부셸(9)에 냉동유(11)를 비산하게 구성되어 있다.The refrigeration oil 11 is pumped through the spiral oil groove 20 in which the refrigerating oil 11 which is still in the lower shell 8 by the rotation of the crank shaft 4 is formed on the inner surface of the crank shaft 4. The refrigeration oil 11 is scattered between the cylinder 6 and the piston 5 and the upper shell 9 of (1).

상기와 같이 구성되는 본 고안에 의한 밀폐형 전동 압축기의 오일흡상장치의 작용효과를 설명하면 다음과 같다.Referring to the effect of the oil suction device of the hermetic electric compressor according to the present invention configured as described above are as follows.

도 1 및 도 3을 참조로, 압축기 하부셸(8)에 고여있던 냉동유(11)는 전원이 고정자(3)에 인가되면 회전자(2)가 회전하면서 크랭크축(4)의 내면에 나선형 오일홈(20)이 형성되어 있기 때문에 크랭크축(4) 회전에 의해 발생되는 압력차로 인해 냉동유(11)가 내부의 나선형 오일홈(20)과 외부원주에 따라 형성된 오일홈을 통해 크랭크축핀부(16)로 유도되어 실린더(6)와 피스톤(5)사이 및 상부셸(9)에 냉동유(11)를 급유할 수 있다.1 and 3, the refrigeration oil 11 accumulated in the compressor lower shell 8 is spiraled on the inner surface of the crankshaft 4 while the rotor 2 rotates when power is applied to the stator 3. Since the oil groove 20 is formed, due to the pressure difference generated by the rotation of the crankshaft 4, the crankshaft pin part is formed through the oil groove formed along the spiral oil groove 20 and the outer circumference of the internal oil circumference. Guide oil (16) can be supplied to the refrigeration oil (11) between the cylinder (6) and the piston (5) and to the upper shell (9).

그러므로 종래처럼 크랭크축(4)에 프로펠러(15) 및 피이스(14)의 결합없이 크랭크축(4)만으로 오일을 급유할 수 있는 구조이다.Therefore, it is a structure capable of lubricating oil only by the crankshaft 4 without coupling the propeller 15 and the piece 14 to the crankshaft 4 as in the related art.

이상에서 설명한 바와 같이, 본 고안은 크랭크축의 내면에 오일을 흡상하여 비산시키는 나선형 오일홈을 형성함으로서, 종래처럼 프로펠러 및 피이스를 사용하지 않아 부품수 및 조립공수를 줄이는 효과를 갖는다.As described above, the present invention forms an helical oil groove that sucks and scatters oil on the inner surface of the crankshaft, thereby reducing the number of parts and the number of assembly operations by not using propellers and pieces.

Claims (1)

크랭크축의 내면에 오일을 흡상하여 비산시키는 나선형 오일홈을 형성되어 있는 것을 특징으로 하는 밀폐형 전동 압축기의 오일흡상장치.An oil suction device of a hermetic electric compressor, characterized in that a spiral oil groove is formed on the inner surface of the crankshaft to suck and scatter oil.
KR2019960039052U 1996-11-08 1996-11-08 Oil suction device of hermetic electric compressor KR19980026192U (en)

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Application Number Priority Date Filing Date Title
KR2019960039052U KR19980026192U (en) 1996-11-08 1996-11-08 Oil suction device of hermetic electric compressor

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Application Number Priority Date Filing Date Title
KR2019960039052U KR19980026192U (en) 1996-11-08 1996-11-08 Oil suction device of hermetic electric compressor

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KR19980026192U true KR19980026192U (en) 1998-08-05

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KR2019960039052U KR19980026192U (en) 1996-11-08 1996-11-08 Oil suction device of hermetic electric compressor

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