KR940007510Y1 - Closed electric compressor - Google Patents
Closed electric compressor Download PDFInfo
- Publication number
- KR940007510Y1 KR940007510Y1 KR2019910006558U KR910006558U KR940007510Y1 KR 940007510 Y1 KR940007510 Y1 KR 940007510Y1 KR 2019910006558 U KR2019910006558 U KR 2019910006558U KR 910006558 U KR910006558 U KR 910006558U KR 940007510 Y1 KR940007510 Y1 KR 940007510Y1
- Authority
- KR
- South Korea
- Prior art keywords
- rotating shaft
- frame
- electric compressor
- rolling bearing
- shaft
- Prior art date
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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
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0238—Hermetic compressors with oil distribution channels
- F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
- F04B39/0253—Hermetic compressors with oil distribution channels in the rotating shaft using centrifugal force for transporting the oil
-
- 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
Abstract
내용 없음.No content.
Description
제 1 도는 밀폐형 전동압축기의 일부 종단면도.1 is a partial longitudinal sectional view of a hermetic electric compressor.
제 2 도는 본 고안의 회전축 일부사시도.2 is a partial perspective view of a rotating shaft of the present invention.
제 3 도는 본 고안의 요부 종단면도.Figure 3 is a longitudinal cross-sectional view of the main part of the present invention.
제 4 도는 종래 고안의 요부 종단면도.Figure 4 is a longitudinal sectional view of the main portion of the conventional design.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 회전축 1a : 윤활통로1: Rotating shaft 1a: Lubrication passage
2 : 프라이 휘일 3 : 유통공2: fryer 3: distributor
4 : 요입홈 5 : 프레임4: recessed groove 5: frame
5a : 하우징 6 : 롤링베어링5a: housing 6: rolling bearing
본 고안은 전동기구부에 의해 회전하면서 피스턴을 실린더내로 왕복 운동시키는 밀폐형 전동기의 회전축 윤활구조에 관한것이다.The present invention relates to a rotating shaft lubrication structure of a hermetic motor for reciprocating a piston into a cylinder while rotating by an electric mechanism part.
일반적으로 밀폐형 전동압축기는 제 1 도에 도시한 바와같이 밀폐용기(10)내에 프레임(5)이 스프링(13)으로 탄력설치되어 있고 프레임(5)내에는 프라이휘일(2)을 가진 회전축(21)이 결합되어 있으며, 또한 회전축(21)의 상부에 형성된 편심축(12)에 실린더(9)내부를 왕복 운동하는 피스턴(8)이 결합되어 있다.In general, the hermetic electric compressor, as shown in FIG. 1, has a frame 5 resiliently installed with a spring 13 in the hermetic container 10 and a rotating shaft 21 having a fryer 2 in the frame 5. Is coupled to the eccentric shaft 12 formed on the top of the rotation shaft 21, the piston 8 for reciprocating the inside of the cylinder 9 is coupled.
따라서 전동기구부(7)에 의해 회전축(21)이 회전함에 따라 편심축(12)에 결합된 피스턴(8)이 실린더(9)내를 왕복 운동하면서 냉매를 흡입, 압축, 토출시키게 되는데, 이때 회전축(21)의 회전에 따라 밀폐용기(10) 하부에 밀봉된 윤활유(11)가 오일통로(21a)를 통해 편심축(12)의 상부로 비산되면서 압축기구부를 냉각시킴과 동시에 프레임(5)과 회전축(21)사이의 마찰면을 윤활하게 된다.Therefore, as the rotary shaft 21 rotates by the electric mechanism unit 7, the piston 8 coupled to the eccentric shaft 12 reciprocates in the cylinder 9, thereby sucking, compressing and discharging the refrigerant. The lubricating oil 11 sealed in the lower portion of the sealed container 10 is scattered to the upper portion of the eccentric shaft 12 through the oil passage 21a as the rotation of the 21 rotates, thereby cooling the compression mechanism and the frame 5 and The friction surfaces between the rotating shafts 21 are lubricated.
상기한 바와같이 프레임(5)과 회전축(21)사이를 윤활할때 항상 일정한 유막을 형성하여야 한다.As described above, when lubricating between the frame 5 and the rotating shaft 21, a constant oil film should always be formed.
종래에는 제 4 도에 도시한 바와같이 프레임(5)과 접속되어 회전하는 회전축(21)의 바깥둘레에 나선형의 오일 그루우브(Oil Groove)(21b)가 형성되어 있어 압송된 윤활유가 오일 그루우브(21b)를 따라 유입되어 마찰면을 윤활하여 마찰저항을 줄일 수 있도록 되어 있다.Conventionally, as shown in FIG. 4, a spiral oil groove 21b is formed on the outer circumference of the rotating shaft 21 which is connected to the frame 5 and rotates so that the pressurized lubricant is an oil groove. It flows in along (21b) to lubricate the friction surface to reduce the frictional resistance.
그러나 이러한 종래의 윤활 구조는 피스턴(8)이 실린더(9)의 내부를 왕복운동할때 고압의 냉매에 의해 프레임(5)과 회전축(21)사이의 경방향으로 하중이 작용하게되므로 프레임(5)의 높이가 제한되고, 또한 프레임(5)과 회전축(21) 사이를 일정한 간격으로 유지하기 위해서는 정밀 가공이 요구되므로 생산성이 저하되었을 뿐아니라 경방향 하중이 커져 프레임(5)과 회전축(21)사이가 일정 간격을 유지하지 못할 경우에는 고체마찰이 발생되므로 압축기의 구동에 따른 소비전력이 증가되는 결점이 있었다.However, this conventional lubrication structure has a frame 5 because the load is applied in the radial direction between the frame 5 and the rotating shaft 21 by the high pressure refrigerant when the piston 8 reciprocates the inside of the cylinder 9. In order to maintain the height between the frame 5 and the rotating shaft 21 at a constant interval, precision machining is required, and not only productivity is lowered, but also the radial load increases, thereby increasing the space between the frame 5 and the rotating shaft 21. In the case of not maintaining a constant interval, solid friction is generated, resulting in an increase in power consumption due to the operation of the compressor.
본 고안은 종래의 이와같은 결점을 해결하기 위해 안출한 것으로서, 회전축의 윤활구조를 개선하여 경방향하중을 줄여 압축기의 구동에 따른 소비 전력을 감소 시킬 수 있도록 하는데 그 목적이 있다.The present invention has been made to solve such a drawback of the prior art, the purpose is to improve the lubrication structure of the rotating shaft to reduce the radial load to reduce the power consumption according to the operation of the compressor.
상기 목적을 달성하기 위한 본 고안의 형태에 따르면, 전동구동부에 의해 회전축이 회전함에 따라 피스턴이 실린더내를 왕복 운동하면서 냉매를 흡입, 토출시키는 밀폐형 전동압축기에 있어서, 회전축의 프라이휘일 저면으로 윤활통로와 통하여지도록 한쌍의 유통공을 상호 대응되게 형성함과 함께 그 외측으로 환형의 요입홈을 형성하고 프레임에는 하우징을 가공한 후 이 하우징에 롤링베어링이 결합된 회전축을 결합하여 회전축이 회전함에 따라 압송된 윤활유가 윤활통로와 유통공 그리고 요입홈을 통해 롤링베어링을 윤활시킬 수 있도록 하여서 된 밀폐형 전동압축기의 회전축 윤활 구조가 제공된다.According to an aspect of the present invention for achieving the above object, in the hermetic electric compressor, in which the piston is sucked and discharged while the piston rotates in the cylinder as the rotary shaft rotates, the lubrication passage to the bottom of the primary shaft of the rotary shaft. A pair of flow holes are formed to correspond to each other, and an annular recessed groove is formed on the outside thereof, and the housing is machined in the frame, and then the rotating shaft coupled with the rolling bearing is coupled to the housing to be fed as the rotating shaft rotates. The rotating shaft lubrication structure of the hermetic electric compressor is provided so that the lubricated oil can lubricate the rolling bearing through the lubrication passage, the distribution hole and the recess groove.
이하, 본 고안을 일실시예로 도시한 첨부된 도면 제 2 도 내지 제 3 도를 참고로 하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings, FIGS. 2 to 3 as an embodiment.
첨부도면 제 2 도는 본 고안의 회전축 일부사시도이고 제 3 도는 본 고안의 요부 종단면도로서, 본 고안은 윤활통로(1a)를 가진 회전축(1)의 프라이휘일(2) 저면에 윤활통로(1a)와 상호 통하여 지도록 한쌍의 유통공(3)이 형성되어 있고 유통공(3)의 외측으로는 환형의 요입홈(4)이 형성되어 있다.FIG. 2 is a partial perspective view of the rotating shaft of the present invention, and FIG. 3 is a longitudinal sectional view of the main part of the present invention. The present invention is a lubrication passage 1a on the bottom of the primary wheel 2 of the rotating shaft 1 having the lubricating passage 1a. A pair of distribution holes 3 are formed so as to be intersected with each other, and an annular recessed groove 4 is formed outside the distribution hole 3.
그리고 회전축(1)을 지지하는 프레임(5)에는 하우징(5a)이 가공되어 있어 이 하우징(5a)에 롤링베어링(6)이 결합된 회전축(1)을 압입 고정하도록 되어 있다.And the housing | casing 5a is processed in the frame 5 which supports the rotating shaft 1, and the rotation shaft 1 which the rolling bearing 6 couple | bonded with this housing 5a is press-fitted.
이때, 롤링베어링(6)은 내륜과 외륜으로 구성되어 내륜은 회전축(1)에 고정되고 외륜은 프레임(5)에 구속되어 지며, 내륜과 외륜사이에는 볼(Ball) 또는 니이들(Needle)(도시는 생략함)이 내장되어 상기 볼이나 니이들의 구름마찰로 인해 횡방향 하증을 방지하도록 되어 있다.At this time, the rolling bearing 6 is composed of the inner ring and the outer ring, the inner ring is fixed to the rotating shaft (1) and the outer ring is constrained to the frame (5), between the inner ring and the outer ring (Ball) or needle (Needle) ( (Not shown) is built in to prevent lateral descent due to cloud friction of the balls or needles.
이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.
먼저 전동구동부(7)에 의해 회전축(1)이 회전함에 따라 피스턴(8)이 실린더(9)내를 왕복운동하면서 냉매를 흡입, 토출시키게 되는데, 이에따라 압축기구부 그리고 회전축(1)과 프레임(5)사이의 마찰면에 열이 발생된다.First, as the rotary shaft 1 rotates by the electric drive unit 7, the piston 8 reciprocates in the cylinder 9 to suck and discharge the refrigerant. Accordingly, the compressor sphere, the rotary shaft 1 and the frame 5 Heat is generated on the friction surface between).
또한 회전축(1)의 회전에 따라 밀폐용기(10)내에 밀봉되어있던 윤활유(11)가 윤활통로(1a)를 통해 압송되어 편심축(12)의 상부로 비산되면서 압축기구부를 냉각시키게 되는데, 이때 압송된 윤활유(11)의 일부가 프라이휘일(2)의 저면에 형성된 한쌍의 유통공(3)과 환형의 요입홈(4)을 따라 흘러 나와 롤링베어링(6)으로 제 3 도의 화살표 방향과 같이 공급되어 롤링베어링(6)의 내륜과 외륜사이를 윤활하게 되므로 회전축(1)의 회전이 더욱 원활해지게 됨과 동시에 롤링베어링(6)이 경방향 하증을 감소시키게 되는 것이다.In addition, as the rotary shaft 1 rotates, the lubricating oil 11 sealed in the airtight container 10 is pumped through the lubrication passage 1a and scattered to the upper portion of the eccentric shaft 12 to cool the compression mechanism. A part of the pressurized lubricating oil 11 flows out through the pair of flow holes 3 and the annular recessed grooves 4 formed in the bottom of the frying wheel 2 and into the rolling bearing 6 as shown in the direction of the arrow of FIG. Supplied to lubricate between the inner ring and the outer ring of the rolling bearing 6, the rotation of the rotating shaft (1) is more smooth and at the same time the rolling bearing (6) will reduce the radial load.
이상에서와 같이 본 고안은 회전축(1)과 프레임(5)사이에 롤링베어링(6)을 설치함과 함께 회전축(1)의 윤활통로(1a)와 서로 통하여 지도록 유통공(3)과 요입홈(4)을 형성하여 윤활유(11)를 롤링베어링(6)으로 급유시킬수 있도록 되어 있어 회전축(1)의 마찰저항을 최소화 하게됨은 물론 롤링베어링(6)이 경방향 하증을 감소시킬 수 있게되므로 인해 압축기의 소비 전력이 대폭 절감되는 효과가 있다.As described above, the present invention installs a rolling bearing 6 between the rotating shaft 1 and the frame 5, and also distributes the circulation hole 3 and the recessed groove so as to pass through each other with the lubrication passage 1a of the rotating shaft 1. Forming (4) to lubricate the lubricating oil (11) with the rolling bearing (6) to minimize the frictional resistance of the rotating shaft (1), as well as the rolling bearing (6) can reduce the radial degradation The power consumption of the compressor is greatly reduced.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910006558U KR940007510Y1 (en) | 1991-05-08 | 1991-05-08 | Closed electric compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910006558U KR940007510Y1 (en) | 1991-05-08 | 1991-05-08 | Closed electric compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920021660U KR920021660U (en) | 1992-12-19 |
| KR940007510Y1 true KR940007510Y1 (en) | 1994-10-22 |
Family
ID=19313615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019910006558U KR940007510Y1 (en) | 1991-05-08 | 1991-05-08 | Closed electric compressor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940007510Y1 (en) |
-
1991
- 1991-05-08 KR KR2019910006558U patent/KR940007510Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR920021660U (en) | 1992-12-19 |
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