KR930008985B1 - Sealed rotary pressure motor - Google Patents

Sealed rotary pressure motor Download PDF

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Publication number
KR930008985B1
KR930008985B1 KR1019910012126A KR910012126A KR930008985B1 KR 930008985 B1 KR930008985 B1 KR 930008985B1 KR 1019910012126 A KR1019910012126 A KR 1019910012126A KR 910012126 A KR910012126 A KR 910012126A KR 930008985 B1 KR930008985 B1 KR 930008985B1
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KR
South Korea
Prior art keywords
shaft
compression chamber
assembly
stator
motor
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KR1019910012126A
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Korean (ko)
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KR930003495A (en
Inventor
배명한
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주식회사 금성사
이헌조
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Priority to KR1019910012126A priority Critical patent/KR930008985B1/en
Publication of KR930003495A publication Critical patent/KR930003495A/en
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Publication of KR930008985B1 publication Critical patent/KR930008985B1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/075Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics

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

Abstract

The sealed motor has an inner compression chamber in the body of a rotor for minimizing the size of a rotary compressor. The motor having a stator (21) attached on a casing (11), comprises suction inlet (43), discharging outlet (42), stationary shaft (41) having a guide vane (82) supported by spring (83); rotating roller assembly (50) having a rotor (31) at a side and supported by upper, lower compression chamber cover (32) on the inner side of the stator (21) and the shaft (41). The assembly (50) having the shaft (41), sleeve bearing (91), is concentric with the center of the shaft (41) and has an eccentric compression chamber (33). When the assembly (50) is rotating arround the shaft (41), the inside of the assembly (50) is contacted with the outside of the shaft (41).

Description

밀폐형 회전압축식 전동기Hermetic rotary compression motor

제 1 도는 본 발명에 의한 밀폐형 회전식압축식 전동기의 내부구조를 보이는 종단면도.1 is a longitudinal sectional view showing the internal structure of a hermetically sealed rotary compression motor according to the present invention.

제 2 도는 종래기술에 의한 밀폐형 회전압축식 전동기의 내부구조를 보이는 종단면도.Figure 2 is a longitudinal sectional view showing the internal structure of a hermetic rotary compression motor according to the prior art.

제 3 도는 제 2 도에서 A-A'선을 따라 본 종래압축기의 압축과정 설명도.3 is a diagram illustrating a compression process of a conventional compressor viewed along the line AA ′ in FIG. 2.

제 4 도는 제 1 도에서 B-B'선을 따라 본 발명압축기의 압축과정 설명도.4 is a diagram illustrating the compression process of the compressor according to the line B-B 'in FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 케이싱 21 : 고정자1: casing 21: stator

31 : 회전자 32 : 압축실 커버31: rotor 32: compression chamber cover

33 : 압축실 41 : 고정축33: compression chamber 41: fixed shaft

42 : 토출구 및 토출파이프 43 : 흡입구42: discharge port and discharge pipe 43: suction port

51 : 프레임 82 : 카이드베인51: Frame 82: Kaid Bane

83 : 스프링 91 : 슬리이브베어링83: spring 91: sleeve bearing

본 발명은 밀폐형 회전압축식 전동기에 관한 것으로, 특히 종래에 별도로 설치되던 압축실을 전동기의 회전자 내부에 내장되도록 한 밀폐형 회전압축식 전동기에 관한것이다.The present invention relates to a hermetic rotary compression motor, and more particularly to a hermetic rotary compression motor in which a compression chamber, which is conventionally installed separately, is embedded in the rotor of the electric motor.

종래 기술에 의한 밀폐형 회전압축식 전동기는 첨부도면 제 2 도에서 도시한 바와 같이 밀폐케이싱(11)과, 이 케이싱(11)내의 회전축(41')과, 이 축(41')의 하부에 편심되게 부착되어 압축실(33)내부에서 회전하는 로울러(36)을 구비하고, 상기 압축실(33)은 상기 케이싱(11)에 지지된 프레임(51)과 상, 하부커버(32)에 의해 마련된다. 또한 상기축(41')과 커버(31, 32)는 슬리이브베어링(91)을 이용하여 체결한다. 아울러, 상기 압축실(33)의 반대쪽 축(41')에는 전동기의 회전자(31')가 강제압입등의 방식으로 삽입 고정되고, 이 회전자(31')를 둘러싸고 있는 고정자(21)는 상기 케이싱(11)에 가입고정 또는 열고정방식등으로 고정된다. 압축용 냉매는 흡입파이프(71)를 통하여 케이싱(11)내로 들어오고 압축실(33)에서 압축된후 토출파이프(42')를 통해서 압축기 외부로 토출된다.The hermetic rotary compression motor according to the related art is eccentric to the hermetic casing 11, the rotary shaft 41 'in the casing 11, and the lower portion of the shaft 41' as shown in FIG. And a roller 36 rotating inside the compression chamber 33, the compression chamber 33 being provided by a frame 51 supported by the casing 11 and an upper and lower cover 32. do. In addition, the shaft 41 ′ and the covers 31 and 32 are fastened using the sleeve bearing 91. In addition, the rotor 31 'of the electric motor is inserted into and fixed to the opposite shaft 41' of the compression chamber 33 by a forced press method or the like, and the stator 21 surrounding the rotor 31 'is The casing 11 is fixed in a subscription or heat-setting method. The compression refrigerant enters the casing 11 through the suction pipe 71, is compressed in the compression chamber 33, and then discharged out of the compressor through the discharge pipe 42 ′.

이러한 구성을 갖는 종래의 밀폐형 회전압축식 전동기는 전원이 인가되는 경우, 고정자(21)과 회전자(31')사이에 회전력이 발생하여 회전자(31')가 회전하게 되고, 이 회전은 축(41')을 통하여 편심회전로울러(36)에 전달되어 압축실(33)내에 압축된다. 이러한 압축력에 의하여 압축된 냉매는 제 2 도의 화살표와 같이 토출파이프(42')를 통해 토출됨과 동시에 압축될 냉매가 흡입파이프(71)을 통해 흡입된다.In the conventional hermetic rotary compression motor having such a configuration, when power is applied, a rotational force is generated between the stator 21 and the rotor 31 'so that the rotor 31' rotates, and this rotation is performed by the shaft. It is transmitted to the eccentric rotation roller 36 through 41 'and compressed in the compression chamber 33. The refrigerant compressed by the compressive force is discharged through the discharge pipe 42 'as shown by the arrow in FIG. 2 and at the same time, the refrigerant to be compressed is sucked through the suction pipe 71.

이 압축과정을 상세히 설명하기 설명하기 위해 제 3 도를 보면, 압축실(33)내의 회전로울러(36)는 축(41')과 편심되게 조립되어 있고, 로울러(36)의 외주면은 프레임(51)의 내주면과 내접하도록 조립되어 조립되어 있다. 따라서, 로울러(36)가 회전하게 되면, 압축실(33)의 내부벽에 설치된 가이드베인(82')이 스프링(83')의 반발력에 의해 로울러(36)와 접하게되므로 압축실(33)의 공간은 2개의 공간으로 나뉘어지게 된다. 또한, 상기 가이드베인(82')를 중심으로 양측에 흡입구(43')과 토출구(42')가 형성되어 있으므로 로울러(36)가 회전함에 따라 압출력과 토출력이 발생하여 냉매가 흡입 및 토출하게 된다. 이과정의 진행은 제 3 도의 A→B→C→D의 순이된다. 즉, 로울러(36)가 A상태에서 B상태로 회전하면, 압축실은 압축되어 실내의 냉매가 토출구(42')를 통해 토출되며, 동시에 흡입구(43')로 새로운 냉매가 흡입되기 시작한다. 이러한 경로를 거쳐 제 3 도의 A→B→C→D 과정이 1 사이클의 압축과정이 된다.Referring to FIG. 3 to explain this compression process in detail, the rotary roller 36 in the compression chamber 33 is assembled eccentrically with the shaft 41 ', and the outer circumferential surface of the roller 36 is frame 51. Assembled and assembled to the inner circumferential surface of the Therefore, when the roller 36 rotates, the guide vane 82 'installed on the inner wall of the compression chamber 33 comes into contact with the roller 36 by the repulsive force of the spring 83', so that the space of the compression chamber 33 is reduced. Is divided into two spaces. In addition, since the suction port 43 'and the discharge port 42' are formed at both sides of the guide vane 82 ', the extrusion force and the earth output are generated as the roller 36 rotates, so that the refrigerant is sucked and discharged. Done. The process proceeds in the order of A → B → C → D in FIG. That is, when the roller 36 rotates from the A state to the B state, the compression chamber is compressed to discharge the refrigerant in the room through the discharge port 42 ', and at the same time, the new refrigerant begins to be sucked into the suction port 43'. Through this path, the process A → B → C → D in FIG. 3 becomes one cycle of compression.

그러나, 상기와 같은 종래의 밀폐형 회전압축식 전동기는 별도의 압축실(33)을 구비하므로 압축기의 전체구조가 커져서 냉장고등의 유효 면적을 축소시키고, 에어컨등의 전체크기를 크게하는등의 문제가 있었다. 또한 전동기의 회전자(31')에서 발생한 회전력이 축(41')을 통해서 회전로울러(36)에 전달되므로 이과정에서 에너지 손실이 발생된다는 문제점이 있었다.However, since the conventional hermetic rotary compression motor includes a separate compression chamber 33, the overall structure of the compressor is increased, thereby reducing the effective area of the refrigerator and the like and increasing the overall size of the air conditioner. there was. In addition, since the rotational force generated in the rotor 31 'of the electric motor is transmitted to the rotation roller 36 through the shaft 41', there is a problem that energy loss occurs in this process.

따라서 본 발명의 목적은 상기와 같은 종래기술의 문제점을 해결할 수 있는 밀폐형 회전압축식 전동기를 제공하고자 함이다. 이하에서는 첨부한 도면을 참조하여 본 발명을 보다 상세히 설명한다.Accordingly, an object of the present invention is to provide a hermetic rotary compression motor that can solve the problems of the prior art as described above. Hereinafter, with reference to the accompanying drawings will be described the present invention in more detail.

제 1 도를 참조하면, 우선 전동기 고정자(21)의 형상 및 고정방식은 종래의 경우와 동일하다. 그러나, 고정축(41)내에 토출구 및 토출파이프(42)를 내장하여 케이싱(11)내의 중심부에 고정하여 설치하고, 이 고정축(41)의 외측에 상하부에서 압축실 커버(32)에 의해 고정결합되고, 측부를 회전자(31)로 구성한 회전로울러 조립체(50)를 구비한다. 이때, 상기의 커버(32)는 회전자(31)에 압착고정하여 결합하고, 고정축(41)과는 슬리이브베어링(91)을 통해 결합된다, 상기 로울러 조립체(50)의 상세한 형상은 제 4 도에서 도시하고 있는 것처럼, 외부가 고정축(41)의 중심축과 동심원의 형상이되고, 내부는 편심된 공간이 되도록 하여 로울러 조립체(50)가 고정축을 중심으로 회전할때, 조립체(50)의 내경 일측면과 고정축(41)의 외경 일측면이 접촉하도록 되어있다. 또한 고정축(41)에는 토출구 및 토출파이프(42), 흡입구(43)가 내장되는 구성으로 냉매의 유로를 형성하게 된다. 아울러, 이 고정축(41)에는 가이드베인(82)이 스프링을 개재하여 설치된다.Referring to FIG. 1, first, the shape and fixing method of the motor stator 21 are the same as in the conventional case. However, the discharge port and the discharge pipe 42 are built in the fixed shaft 41 to be fixed and installed in the center of the casing 11, and fixed by the compression chamber cover 32 at the upper and lower portions outside the fixed shaft 41. It is coupled to the rotary roller assembly 50 having a side composed of a rotor (31). At this time, the cover 32 is coupled to the rotor 31 by pressing and fixed, and the fixed shaft 41 is coupled through the sleeve bearing 91, the detailed shape of the roller assembly 50 is made of As shown in FIG. 4, when the roller assembly 50 rotates about the fixed axis so that the outside becomes concentric with the central axis of the fixed shaft 41 and the inside is an eccentric space, the assembly 50 One side of the inner diameter of the c) and one side of the outer diameter of the fixed shaft 41 is in contact. In addition, the fixed shaft 41 is formed with a discharge port, a discharge pipe 42, and a suction port 43 to form a flow path of the refrigerant. In addition, the guide vane 82 is installed on the fixed shaft 41 via a spring.

또한, 제 1 도에 도시하고 있는 것처럼, 상기 로울러 조립체(50)는 토출파이프(42)가 내장된 프레임(51)과 결합고정되어 하부의 고정구조를 형성한다. 상기의 토출파이프(42)는 고정축(41)내에 토출파이프와 연계하여 압축냉매의 토출유로를 형성한다. 상기 프레임(51)는 케이싱(11) 내벽에 통상의 방식으로 부착 고정 된다.In addition, as shown in FIG. 1, the roller assembly 50 is fixedly coupled to the frame 51 in which the discharge pipe 42 is incorporated to form a lower fixing structure. The discharge pipe 42 forms a discharge passage of the compressed refrigerant in a fixed shaft 41 in association with the discharge pipe. The frame 51 is attached and fixed to the inner wall of the casing 11 in a conventional manner.

상기와 같은 구성을 갖는 본 발명의 회전압축식 전동기는 다음과 같은 방식으로 작동된다.The rotary compression motor of the present invention having the configuration as described above is operated in the following manner.

제 4 도를 참조하면, 회전로울러 조립체(50)는 회전자(31)와 고정자(21)와의 작용에 의한 회전작동으로 소정의 에어간극(22)을 유지하면서 회전하게 된다. 이때, 고정축(41)의 일측에 설치된 가이드베인(82)이 스프링(83)의 힘으로 외측으로 돌출하면서 로울러조립체(50)의 내면과 접촉하여 압축실(33)를 2부분으로 구분하고, 그 내부의 냉매를 압축하여 토출구 및 토출파이프(42)를 통해 외부로 토출시키게 된다. 즉, 제 4 도의 a의 상태에서 전동기의 전원이 인가되면, 회전로울러조립체(50)의 회전력이 발생하고, 상태 b로 회전하면서 압축실(33)에 압축력이 발생하여 압축된 냉매가 토출구 및 토출파이프(42)를 통해 외부로 토출시키게 된다. 즉, 제 4 도 a의 상태에서 전동기에 전원이 인가되면, 회전로울러(50)에 회전력이 발생하고, 상태 b로 회전하면서 압축실(33)에 압축력이 발생하여 압축된 냉매가 토출구 및 토출파이프(42)를 통해 토출되면, 동시에 흡입파이프(71) 및 흡입구(43)를 통해서 압축될 냉매가 흡입되게 된다. 그후, 회전조립체(50)가 회전을 계속하면, 흡입구측의 흡입실(33-1)이 커지고, 토출구측의 토출실(33-2)은 축소된다. 이러한 방식으로 제 4 도의 상태 a→b→c→d를 거치며 압축기의 1 사이틀이 완료된다. 이때, 압축기내에서의 냉매의 유로는 제 1 도의 화살표시와 같다.Referring to FIG. 4, the rotary roller assembly 50 rotates while maintaining a predetermined air gap 22 by the rotational operation of the rotor 31 and the stator 21. At this time, the guide vane 82 installed on one side of the fixed shaft 41 protrudes outward with the force of the spring 83 and contacts the inner surface of the roller assembly 50 to divide the compression chamber 33 into two parts. The refrigerant therein is compressed and discharged to the outside through the discharge port and the discharge pipe 42. That is, when the power of the electric motor is applied in the state of FIG. 4a, the rotational force of the rotary roller assembly 50 is generated, and the compression force is generated in the compression chamber 33 while rotating in the state b so that the compressed refrigerant discharges and discharges. It is discharged to the outside through the pipe 42. That is, when power is applied to the electric motor in the state of FIG. 4 a, a rotational force is generated in the rotation roller 50, and a compression force is generated in the compression chamber 33 while rotating in the state b. When discharged through the 42, the refrigerant to be compressed is sucked through the suction pipe 71 and the suction port 43 at the same time. After that, when the rotating assembly 50 continues to rotate, the suction chamber 33-1 on the suction port side becomes large, and the discharge chamber 33-2 on the discharge port side is reduced. In this manner, one cycle of the compressor is completed through the state a → b → c → d in FIG. At this time, the flow path of the refrigerant in the compressor is the same as the arrow in FIG.

이상 설명한 바와 같은 본 발명에 의한 밀폐형 회전압축식 전동기는 압축실을 전동기부와 별도로 구성하지 않고 전동기의 회전자내부에 내장하므로 압축기의 전체구조가 축소되어 압축전동기가 설치되는 냉장고나 에어컨등의 제품의 유효실내면적을 증가시킬 수 있고, 따라서 크기를 상당히 축소시킬 수 있는 장점이 있다. 또한, 본 발명에 의하면 축에 의한 회전력의 전달과정을 생략할 수 있으므로 에너지 손실을 절감하는 효과도 있다.As described above, the hermetic rotary compression motor according to the present invention does not constitute a compression chamber separately from the motor unit, but is built into the rotor of the motor, so that the overall structure of the compressor is reduced, such as a refrigerator or an air conditioner in which a compression motor is installed. The effective indoor area of the can be increased, and thus the size can be significantly reduced. In addition, according to the present invention, it is possible to omit the transmission process of the rotational force by the shaft, thereby reducing the energy loss.

Claims (2)

케이싱(11)에 고정 부착되는 고정자(21)를 갖는 밀폐형 회전압축식 전동기에 있어서, 흡입구(43), 토출구(42)를 내장하고 스프링(83)으로 개재된 가이드 베인(82)를 구비한 고정축(41)과, 이 고정축(41)의 외측에서 상기고정자(21)의 내측에 그 상하부에서는 압축실커버(32)에 의해 압축 고정결합되고 측부는 회전자(31)로 구성된 회전로울러 조립체(50)로 이루어진 것을 특징으로 하는 밀폐형 회전압축식 전동기.In the hermetic rotary compression type motor having the stator 21 fixedly attached to the casing 11, the inlet 43 and the outlet 42 are provided with a fixed guide vane 82 interposed with a spring 83. A shaft 41 and a rotating roller assembly which are fixedly coupled to the inner side of the stator 21 by the compression chamber cover 32 on the upper and lower sides of the stator 21 and the side portion of the rotor 31. Sealed rotary compression electric motor, characterized in that consisting of (50). 제 1 항에 있어서, 상기 로울러조립체(50)는 상기 고정축(41)과 슬리이브베어링(91)을 개재하고 결합되고, 조립체(50)의 형상은 외부가 고정축(41)의 중심축과 동심원의 형상이 되고, 내부는 편심된 압축실공간(33)으로 되어 이 로울러조립체(50)가 고정축을 중심으로 회전할때, 조립체(50)의 내경 일측면과 고정축(41)의 외경 일측면이 접촉하도록 되어있는 것을 특징으로 하는 밀폐형 회전압축식 전동기.According to claim 1, wherein the roller assembly 50 is coupled via the fixed shaft 41 and the sleeve bearing 91, the shape of the assembly 50 is the outside of the central axis of the fixed shaft (41) It becomes the shape of a concentric circle, the inside is an eccentric compression chamber space 33, when the roller assembly 50 is rotated about a fixed axis, the inner diameter one side of the assembly 50 and the outer diameter of the fixed shaft 41 A hermetic rotary compression motor, characterized in that the side contact.
KR1019910012126A 1991-07-16 1991-07-16 Sealed rotary pressure motor KR930008985B1 (en)

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KR1019910012126A KR930008985B1 (en) 1991-07-16 1991-07-16 Sealed rotary pressure motor

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KR1019910012126A KR930008985B1 (en) 1991-07-16 1991-07-16 Sealed rotary pressure motor

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KR930003495A KR930003495A (en) 1993-02-24
KR930008985B1 true KR930008985B1 (en) 1993-09-17

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