KR100763945B1 - Compressor - Google Patents

Compressor Download PDF

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Publication number
KR100763945B1
KR100763945B1 KR1020060138059A KR20060138059A KR100763945B1 KR 100763945 B1 KR100763945 B1 KR 100763945B1 KR 1020060138059 A KR1020060138059 A KR 1020060138059A KR 20060138059 A KR20060138059 A KR 20060138059A KR 100763945 B1 KR100763945 B1 KR 100763945B1
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KR
South Korea
Prior art keywords
flange
circular groove
cylinder
compressor
fixing member
Prior art date
Application number
KR1020060138059A
Other languages
Korean (ko)
Inventor
모성진
박수돌
Original Assignee
삼성전자주식회사
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Priority to KR1020060138059A priority Critical patent/KR100763945B1/en
Application granted granted Critical
Publication of KR100763945B1 publication Critical patent/KR100763945B1/en

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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
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0028—Internal leakage control
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18—Leaf springs
    • 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
    • Y10S417/902—Hermetically sealed motor pump unit

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

Abstract

A compressor is provided to facilitate inflow of oil and secure reliability of the compressor by blocking the leakage of compressed medium discharged from a second compression chamber by forming a circular groove and inserting a second connection unit and an elastic fixing member thereto. A compressor comprises a motor, a cylinder, a flange unit, a muffler, and an elastic fixing member(60). The motor includes a rotary shaft(15). The cylinder includes an opening where the rotary shaft penetrates and formed in an axial direction of the rotary shaft. The flange unit is composed of a flange body(31) having a pass hole(32) allowing penetration of the rotary shaft, defining a compression chamber with the cylinder by shutting the opening, and including a discharge port(33b) for compressed medium, and a shaft support unit(35) extending in the axial direction of the rotary shaft from the flange body, having a recessed circular groove(37) at a free end area along the axial direction of the rotary shaft. The muffler comprises a first connection unit(53) where the flange body is press-fitted, and a second connection unit(55) bent from the first connection unit and inserted into the circular groove, and surrounds the flange unit having a discharge space for the compressed medium therebetween. The elastic fixing member is received into the circular groove together with the second connection unit to exert elastic pressure on the second connection unit to a sidewall of the circular groove.

Description

압축기{COMPRESSOR}Compressor {COMPRESSOR}

도 1은 종래의 압축기를 개략적으로 도시한 단면도,1 is a cross-sectional view schematically showing a conventional compressor,

도 2는 도 1의 압축기의 하부영역을 확대 도시한 단면도,2 is an enlarged cross-sectional view of a lower region of the compressor of FIG. 1;

도 3은 본 발명에 따른 압축기를 개략적으로 도시한 단면도,3 is a cross-sectional view schematically showing a compressor according to the present invention;

도 4는 도 3의 압축기의 하부영역을 확대 도시한 단면도이다.4 is an enlarged cross-sectional view illustrating a lower region of the compressor of FIG. 3.

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

1 : 압축기 5 : 밀폐용기1: compressor 5: airtight container

7 : 오일저장부 10 : 모터7: oil reservoir 10: motor

15 : 회전축 20a : 제1실린더15: rotation axis 20a: first cylinder

20b : 제2실린더 25 : 중간판20b: 2nd cylinder 25: intermediate plate

25a : 제1압축실 25b : 제2압축실25a: first compression chamber 25b: second compression chamber

30a : 제1플랜지부 30b : 제2플랜지부30a: first flange portion 30b: second flange portion

31 : 플랜지본체 35 : 축지지부31: flange body 35: shaft support

40a : 제1압축유닛 40b : 제2압축유닛40a: first compression unit 40b: second compression unit

50a : 제1머플러 50b : 제2머플러50a: first muffler 50b: second muffler

53 : 제1결합부 55 : 제2결합부53: first coupling portion 55: second coupling portion

57 : 토출공간 60 : 탄성고정부재57: discharge space 60: elastic fixing member

본 발명은 로터리 압축기에 관한 것으로서, 보다 상세하게는 피압축매체의 누설을 차단할 수 있는 압축기에 관한 것이다.The present invention relates to a rotary compressor, and more particularly to a compressor that can block the leakage of the compressed medium.

일반적으로 공기조화기나 냉장고에 적용되는 냉각장치는 냉각능력이 가변되도록 요구조건에 부합하는 최적의 냉각을 수행함과 동시에 에너지 절감을 목적으로 냉매의 압축능력이 가변되도록 한 용량 가변형 로터리 압축기를 채용하고 있다.In general, a cooling device applied to an air conditioner or a refrigerator adopts a variable capacity rotary compressor that allows the cooling capacity to be varied so that the cooling capacity of the refrigerant is varied while the compression capacity of the refrigerant is changed for energy saving purposes. .

이러한 압축기(101)는 도 1 및 도 2에 도시된 바와 같이, 밀폐용기(105)와, 밀폐용기(105)의 내측 상부에 설치된 모터(110)와, 모터(110)의 회전축(115)이 통과되며 개구부를 갖는 제1실린더(120a) 및 제2실린더(120b)와, 제1실린더(120a)의 상측 개구부를 차단하여 제1실린더(120a)와 함께 제1압축실(125a)을 형성하는 제1플랜지부(130a)와, 제1플랜지부(130a)에 결합되어 제1압축실(125a)로부터 토출되는 피압축매체의 토출소음을 저감시키는 제1머플러(150a)와, 제2실린더(120b)의 상측 개구부를 차단하여 제2실린더(120b)와 함께 제2압축실(125b)을 형성하는 제2플랜지부(130b)와, 제2플랜지부(130b)에 결합되어 제2압축실(125b)로부터 토출되는 피압축매체의 토출소음을 저감시키는 제2머플러(150b)를 포함한다.As shown in FIGS. 1 and 2, the compressor 101 includes an airtight container 105, a motor 110 installed on the inner side of the airtight container 105, and a rotation shaft 115 of the motor 110. The first cylinder 120a and the second cylinder 120b having openings and the upper opening of the first cylinder 120a are blocked to form a first compression chamber 125a together with the first cylinder 120a. A first muffler (150a) coupled to the first flange portion (130a), the first flange portion (130a) to reduce the discharge noise of the compressed medium discharged from the first compression chamber (125a), and the second cylinder ( The second flange portion 130b and the second flange portion 130b which form the second compression chamber 125b together with the second cylinder 120b by blocking the upper opening of the upper portion 120b are coupled to the second compression chamber ( And a second muffler 150b for reducing the discharge noise of the compressed medium discharged from the 125b.

제2플랜지부(130b)는 제2실린더(120b)의 하측 개구부를 차단하여 제2압축실(125b)을 형성하는 플랜지본체(131)와, 플랜지본체(131)로부터 모터(110)의 회전 축(115)의 축방향을 따라 연장형성된 축지지부(135)를 포함한다.The second flange portion 130b includes a flange main body 131 for blocking the lower opening of the second cylinder 120b to form the second compression chamber 125b, and a rotation shaft of the motor 110 from the flange main body 131. And an axial support 135 extending along the axial direction of 115.

제2머플러(150b)는 피압축매체의 토출공간(157)을 사이에 두고 제2플랜지부(130b)를 둘러싸며 결합한다. 제2머플러(150b)는 플랜지본체(131)가 압입되는 제1결합부(153)와, 제1결합부(153)로부터 절곡 연장되어 축지지부(135)의 하부판면에 접촉지지되는 제2결합부(155)를 포함한다.The second muffler 150b is coupled to surround the second flange portion 130b with the discharge space 157 of the medium to be compressed therebetween. The second muffler 150b has a first coupling portion 153 into which the flange body 131 is press-fitted, and a second coupling portion which is bent from the first coupling portion 153 to be in contact with and supported by the lower plate surface of the shaft support portion 135. The unit 155 is included.

그러나, 종래의 압축기(101)에서는 제2압축실(125b)로부터 제2머플러(150b) 내부의 토출공간(157)으로 토출되는 피압축매체가 고압으로 토출되므로, 토출공간(157)의 피압축매체가 제2결합부(155)와 축지지부(135)의 하부판면 사이로 누출되는 문제가 있다. 또한, 이러한 피압축매체의 누출로 인하여 오일저장부(117)에 수용되어 있는 오일에 기포가 발생하여 오일을 원활하게 제1압축실(125a) 및 제2압축실(125b)로 공급할 수 없는 문제가 있다.However, in the conventional compressor 101, the compressed medium discharged from the second compression chamber 125b into the discharge space 157 inside the second muffler 150b is discharged at a high pressure, and thus, the compressed space of the discharge space 157 is compressed. There is a problem that the medium leaks between the second coupling portion 155 and the lower plate surface of the shaft support portion 135. In addition, due to the leakage of the compressed medium, bubbles are generated in the oil contained in the oil storage unit 117, and thus the oil cannot be smoothly supplied to the first compression chamber 125a and the second compression chamber 125b. There is.

따라서 본 발명의 목적은, 피압축매체의 누설을 차단하여 신뢰성을 향상시킬 수 있는 압축기를 제공하는 것이다.It is therefore an object of the present invention to provide a compressor which can improve the reliability by blocking leakage of the compressed medium.

상기 목적은, 본 발명에 따라, 회전축을 갖는 모터와, 상기 회전축이 통과되며 상기 회전축의 축방향으로 형성된 개구부를 갖는 실린더를 포함하는 압축기에 있어서, 상기 회전축의 통과공을 가지며, 상기 개구부를 차단하여 상기 실린더와 함께 압축실을 형성하며 피압축매체의 토출공이 형성된 플랜지본체와, 상기 플랜지본체로부터 상기 회전축의 축방향으로 연장되며 자유단부 영역에 상기 회전축의 축 방향을 따라 함몰 형성된 원형그루브가 형성된 축지지부를 갖는 플랜지부와; 상기 플랜지본체가 압입되는 제1결합부와 상기 제1결합부로부터 절곡되어 상기 원형그루브에 삽입되는 제2결합부를 가지고, 상기 플랜지부와의 사이에 피압축매체의 토출공간을 두고 상기 플랜지부를 둘러싸는 머플러와; 상기 제2결합부와 함께 상기 원형그루브에 수용되어 상기 제2결합부를 상기 원형그루브의 측벽에 탄성적으로 가압하는 탄성고정부재를 포함하는 것에 의하여 달성된다.The object is, according to the present invention, a compressor including a motor having a rotating shaft, and a cylinder having an opening in which the rotating shaft passes and formed in the axial direction of the rotating shaft, the compressor having a through hole of the rotating shaft and blocking the opening. And a flange body which forms a compression chamber together with the cylinder and has a discharge hole formed therein, and a circular groove formed in the free end region in the axial direction of the rotary shaft and recessed in the free end region along the axial direction of the rotary shaft. A flange portion having an axial support portion; The flange portion has a first coupling portion into which the flange body is press-fit and a second coupling portion bent from the first coupling portion and inserted into the circular groove, and the flange portion is provided with a discharge space of the compressed medium therebetween. A muffler surrounding; It is achieved by including an elastic fixing member accommodated in the circular groove with the second coupling portion to elastically press the second coupling portion to the side wall of the circular groove.

상기 탄성고정부재는 판스프링인 것이 바람직하다.The elastic fixing member is preferably a leaf spring.

상기 탄성고정부재는 곡선 단면을 갖는 것이 바람직하다.Preferably, the elastic fixing member has a curved cross section.

이하에서는 도 3 및 도 4를 참조하여 본 발명의 바람직한 실시예를 자세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 3 and 4.

본 발명에 따른 압축기(1)는 밀폐용기(5)와, 밀폐용기(5)의 내측 상부에 설치된 모터(10)와, 모터(10)의 회전축(15)이 통과되며 개구부를 갖는 실린더와, 실린더의 개구부를 차단하여 실린더와 함께 압축실을 형성하는 플랜지부와, 플랜지부에 형성되어 있는 토출공으로 토출되는 피압축매체의 토출소음을 저감시키는 머플러와, 탄성고정부재(60)를 포함한다.Compressor (1) according to the present invention is a sealed container (5), a motor (10) installed on the upper inside of the sealed container (5), a cylinder having an opening through which the rotating shaft (15) of the motor (10), A flange portion for blocking the opening of the cylinder to form a compression chamber together with the cylinder, a muffler for reducing the discharge noise of the compressed medium discharged to the discharge hole formed in the flange portion, and the elastic fixing member (60).

밀폐용기(5)는 압축기(1)의 외관을 형성한다. 밀폐용기(5)의 하부영역에는 오일저장부(7)가 형성되어 있으며, 밀폐용기(5)의 상부영역에는 모터(10)가 장착된다.The sealed container 5 forms the appearance of the compressor 1. An oil storage unit 7 is formed in the lower region of the sealed container 5, and the motor 10 is mounted in the upper region of the sealed container 5.

모터(10)는 밀폐용기(5)의 내면에 고정된 원통형 고정자(11)와, 고정자(11)의 내부에 회전 가능하게 설치되는 회전자(13)와, 회전자(13)에 결합되어 있는 회 전축(15)을 포함한다. 그리고, 회전축(15)의 하단부에는 오일수용부에 저장된 오일을 퍼올리는 오일픽업부(17)가 장착되어 있다.The motor 10 is coupled to the cylindrical stator 11 fixed to the inner surface of the hermetic container 5, the rotor 13 rotatably installed in the stator 11, and the rotor 13. A pivot 15. The lower end of the rotating shaft 15 is equipped with an oil pick-up unit 17 for pumping oil stored in the oil receiving unit.

오일픽업부(17)는 회전축(15)의 회전에 의하여 오일저장부(7)에 수용되어 있는 오일을 실린더(20a, 20b) 내부로 공급한다.The oil pick-up unit 17 supplies oil contained in the oil storage unit 7 to the cylinders 20a and 20b by the rotation of the rotation shaft 15.

실린더는 상하 양측에 개구부가 형성된 상부의 제1실린더(20a)와, 제1실린더(20a)의 하부에 설치된 제2실린더(20b)를 포함한다. 제1실린더(20a)와 제2실린더(20b) 사이에는 중간판(25)이 개재되어 있다. 제1실린더(20a) 및 제2실린더(20b)는 중간판(25)과, 제1실린더(20a)의 상부에 장착되는 제1플랜지부(30a)와, 제2실린더(20b)의 하부에 장착되는 제2플랜지부(30b)에 의하여 각각 제1압축실(25a) 및 제2압축실(25b)을 형성한다. 한편, 회전축(15)은 제1압축실(25a) 및 제2압축실(25b)의 중심을 관통하며 제1압축실(25a) 및 제2압축실(25b) 내부의 제1압축유닛(40a) 및 제2압축유닛(40b)에 연결된다.The cylinder includes an upper first cylinder 20a having openings formed at both upper and lower sides, and a second cylinder 20b provided below the first cylinder 20a. An intermediate plate 25 is interposed between the first cylinder 20a and the second cylinder 20b. The first cylinder 20a and the second cylinder 20b are disposed on the intermediate plate 25, the first flange portion 30a mounted on the upper portion of the first cylinder 20a, and the lower portion of the second cylinder 20b. The first compression chamber 25a and the second compression chamber 25b are formed by the second flange portion 30b to be mounted, respectively. On the other hand, the rotating shaft 15 penetrates the centers of the first compression chamber 25a and the second compression chamber 25b, and the first compression unit 40a inside the first compression chamber 25a and the second compression chamber 25b. ) And the second compression unit 40b.

제1압축유닛(40a) 및 제2압축유닛(40b)은 제1압축실(25a) 및 제2압축실(25b)을 관통하는 회전축(15)에 각각 마련된 제1편심부(41a) 및 제2편심부(41b)와, 제1압축실(25a) 및 제2압축실(25b)의 내벽면과 접하여 회전하도록 제1편심부(41a) 및 제2편심부(41b)의 외면에 각각 회전 가능하게 결합된 제1롤러(43a) 및 제2롤러(43b)를 포함한다. 제1편심부(41a)와 제2편심부(41b)는 균형을 유지하도록 편심방향이 상호 반대로 배치된다. 여기서, 제1롤러(43a) 및 제2롤러(43b)는 제1압축실(25a) 및 제2압축실(25b) 내부에서 편심회전하며 피압축매체를 압축한다.The first compression unit 40a and the second compression unit 40b are the first eccentric portions 41a and the first eccentric parts 41a and the first compression chamber 25a and the second compression chamber 25b, respectively. Rotates on the outer surface of the 1st eccentric part 41a and the 2nd eccentric part 41b so that it may rotate in contact with the 2 eccentric part 41b and the inner wall surface of the 1st compression chamber 25a and the 2nd compression chamber 25b, respectively. The first roller 43a and the second roller 43b may be coupled to each other. The first eccentric portion 41a and the second eccentric portion 41b are arranged opposite to each other so as to maintain a balance. Here, the first roller 43a and the second roller 43b eccentrically rotate inside the first compression chamber 25a and the second compression chamber 25b to compress the compressed medium.

제1플랜지부(30a)는 제1실린더(20a)의 상측 개구부를 차단하여 제1실린 더(20a)와 함께 제1압축실(25a)을 형성한다. 제1플랜지부(30a)에는 제1압축실(25a)로부터 피압축매체가 토출되는 토출공(33a)이 형성되어 있다. 그리고, 제1플랜지부(30a)에는 토출공(33a)으로 토출되는 피압축매체의 토출소음을 저감시키는 제1머플러(50a)가 장착되어 있다.The first flange portion 30a blocks the upper opening of the first cylinder 20a to form the first compression chamber 25a together with the first cylinder 20a. A discharge hole 33a through which the compressed medium is discharged from the first compression chamber 25a is formed in the first flange portion 30a. A first muffler 50a is mounted in the first flange portion 30a to reduce the discharge noise of the compressed medium discharged into the discharge hole 33a.

제2플랜지부(30b)는 제2실린더(20b)의 하측 개구부(21)를 차단하여 제2실린더(20b)와 함께 제2압축실(25b)을 형성한다. 제2플랜지부(30b)는 회전축(15)이 통과되는 통과공(32)과 피압축매체의 토출공(33b)이 형성되어 있는 플랜지본체(31)와, 플랜지본체(31)로부터 회전축(15)의 축방향을 따라 연장된 축지지부(35)를 포함한다.The second flange portion 30b blocks the lower opening 21 of the second cylinder 20b to form the second compression chamber 25b together with the second cylinder 20b. The second flange portion 30b includes a flange main body 31 having a through hole 32 through which the rotating shaft 15 passes, and a discharge hole 33b of the compressed medium, and a rotation shaft 15 from the flange main body 31. And an axial support portion 35 extending along the axial direction.

플랜지본체(31)는 제2실린더(20b)의 하측 개구부(21)를 차단한다. 플랜지본체(31)의 중앙영역에는 회전축(15)이 통과하는 통과공(32)이 관통 형성되어 있다. 플랜지본체(31)에는 제2압축실(25b)에서 압축된 피압축매체가 토출되는 토출공(33b)이 형성되어 있다. 플랜지본체(31)는 제1실린더(20a) 및 제2실린더(20b)를 사이에 두고 제1플랜지부(30a)와 결합된다. 플랜지본체(31)의 외주면에는 제2머플러(50b)가 결합된다.The flange body 31 blocks the lower opening 21 of the second cylinder 20b. The through hole 32 through which the rotation shaft 15 passes is formed in the central region of the flange body 31. The flange body 31 has a discharge hole 33b through which the compressed medium compressed in the second compression chamber 25b is discharged. The flange body 31 is coupled to the first flange portion 30a with the first cylinder 20a and the second cylinder 20b therebetween. The second muffler 50b is coupled to the outer circumferential surface of the flange body 31.

축지지부(35)는 플랜지본체(31)로부터 회전축(15)의 외주를 감싸는 형상으로 회전축(15)의 축방향으로 하향 돌출된다. 축지지부(35)의 자유단부에는 원형그루브(37)가 형성되어 있다. 자세히 설명하면, 축지지부(35)의 하부면에는 회전축(15)의 축방향을 따라 원형그루브(37)가 함몰 형성되어 있다. 원형그루브(37)의 폭은 후술하는 제2결합부(55)의 두께에 비하여 상대적으로 크게 형성되는 것이 바람직하 다. 이에, 원형그루브(37)의 제2결합부(55)와 탄성고정부재(60)가 삽입 결합될 수 있다.The shaft support part 35 protrudes downward in the axial direction of the rotation shaft 15 in a shape surrounding the outer circumference of the rotation shaft 15 from the flange body 31. A circular groove 37 is formed at the free end of the shaft support portion 35. In detail, a circular groove 37 is recessed in the lower surface of the shaft support part 35 along the axial direction of the rotation shaft 15. The width of the circular groove 37 is preferably formed relatively large compared to the thickness of the second coupling portion 55 to be described later. Thus, the second coupling portion 55 and the elastic fixing member 60 of the circular groove 37 may be inserted and coupled.

제2머플러(50b)는 플랜지본체(31)가 압입되는 제1결합부(53)와, 제1결합부(53)로부터 절곡되어 원형그루브(37)에 삽입되는 제2결합부(55)를 갖는다. 제2머플러(50b)는 제2플랜지부(30b)와의 사이에 피압축매체의 토출공간(57)을 두고 제2플랜지부(30b)를 둘러싼다.The second muffler 50b includes a first coupling part 53 into which the flange body 31 is press-fitted, and a second coupling part 55 bent from the first coupling part 53 and inserted into the circular groove 37. Have The second muffler 50b surrounds the second flange portion 30b with a discharge space 57 of the medium to be compressed interposed between the second flange portion 30b and the second flange portion 30b.

제1결합부(53)는 플랜지본체(31)의 외주에 대응하는 내경을 갖는다. 이에, 제2머플러(50b)에 플랜지본체(31)를 압입시킬 수 있게 되어 , 피압축매체가 제2머플러(50b)의 외부로 누출되는 것을 방지할 수 있다.The first coupling portion 53 has an inner diameter corresponding to the outer circumference of the flange body 31. Accordingly, the flange main body 31 may be press-fitted into the second muffler 50b, thereby preventing the compressed medium from leaking out of the second muffler 50b.

제2결합부(55)는 축지지부(35)에 형성되어 있는 원형그루브(37)에 삽입된다. 제2결합부(55)는 탄성고정부재(60)로부터 탄성력을 제공받아 원형그루브(37)의 측벽에 밀착된다.The second coupling part 55 is inserted into the circular groove 37 formed in the shaft support part 35. The second coupling part 55 receives the elastic force from the elastic fixing member 60 and is in close contact with the sidewall of the circular groove 37.

탄성고정부재(60)는 제2머플러(50b)의 제2결합부(55)와 함께 원형그루브(37)에 수용된다. 탄성고정부재(60)는 제2결합부(55)를 원형그루브(37)의 측벽으로 탄성력을 가지고 가압한다. 탄성고정부재(60)는 판스프링으로 마련된다. 그리고, 탄성고정부재(60)는 곡선단면을 갖는 고리상으로 마련되는 것이 바람직하다. 이에, 탄성고정부재(60)가 제2결합부(55)에 효율적으로 탄성력을 제공할 수 있게 된다.The elastic fixing member 60 is accommodated in the circular groove 37 together with the second coupling portion 55 of the second muffler 50b. The elastic fixing member 60 presses the second coupling part 55 with an elastic force to the sidewall of the circular groove 37. The elastic fixing member 60 is provided with a leaf spring. And, the elastic fixing member 60 is preferably provided in a ring shape having a curved cross section. Thus, the elastic fixing member 60 can efficiently provide the elastic force to the second coupling portion 55.

이상에서 설명한 바와 같이, 본 발명에 따른 압축기(1)는 제2플랜지부(30b)의 축지지부(35)에 원형그루브(37)를 형성하며, 제2머플러(50b)의 제1결합부(53)에 플랜지본체(31)를 압입시키고 제2결합부(55)를 원형그루브(37)에 탄성고정부재(60) 와 함께 삽입시킴으로써, 제2압축실(25b)에서 토출되는 피압축매체의 누설을 차단할 수 있다. 여기서, 피압축매체의 누설을 차단함으로써, 오일의 유입이 원활하게 되며, 나아가서는 압축기(1)의 신뢰성을 향상시킬 수 있게 된다.As described above, the compressor 1 according to the present invention forms a circular groove 37 on the shaft support portion 35 of the second flange portion 30b, and the first coupling portion of the second muffler 50b ( 53, the flange body 31 is press-fitted and the second coupling part 55 is inserted into the circular groove 37 together with the elastic fixing member 60, thereby to discharge the compressed medium discharged from the second compression chamber 25b. Leakage can be shut off. Here, by blocking the leakage of the medium to be compressed, the oil can be smoothly introduced, and further, the reliability of the compressor 1 can be improved.

이상에서 설명한 바와 같이, 본 발명에 따르면, 피압축매체의 누설을 차단하여 신뢰성을 향상시킬 수 있는 압축기를 제공할 수 있다.As described above, according to the present invention, it is possible to provide a compressor that can improve the reliability by blocking the leakage of the compressed medium.

Claims (3)

회전축을 갖는 모터와, 상기 회전축이 통과되며 상기 회전축의 축방향으로 형성된 개구부를 갖는 실린더를 포함하는 압축기에 있어서,A compressor comprising a motor having a rotating shaft, and a cylinder having an opening formed in an axial direction of the rotating shaft, through which the rotating shaft passes, 상기 회전축의 통과공을 가지며, 상기 개구부를 차단하여 상기 실린더와 함께 압축실을 형성하며 피압축매체의 토출공이 형성된 플랜지본체와, 상기 플랜지본체로부터 상기 회전축의 축방향으로 연장되며 자유단부 영역에 상기 회전축의 축방향을 따라 함몰 형성된 원형그루브가 형성된 축지지부를 갖는 플랜지부와;A flange main body having a through hole of the rotating shaft, the opening being closed to form a compression chamber together with the cylinder, and a discharge hole of the compressed medium formed therein; and extending from the flange main body in the axial direction of the rotating shaft to the free end region. A flange portion having an axial support portion formed with a circular groove formed recessed along the axial direction of the rotation shaft; 상기 플랜지본체가 압입되는 제1결합부와 상기 제1결합부로부터 절곡되어 상기 원형그루브에 삽입되는 제2결합부를 가지고, 상기 플랜지부와의 사이에 피압축매체의 토출공간을 두고 상기 플랜지부를 둘러싸는 머플러와;The flange portion has a first coupling portion into which the flange body is press-fit and a second coupling portion bent from the first coupling portion and inserted into the circular groove, and the flange portion is provided with a discharge space of the compressed medium therebetween. A muffler surrounding; 상기 제2결합부와 함께 상기 원형그루브에 수용되어 상기 제2결합부를 상기 원형그루브의 측벽에 탄성적으로 가압하는 탄성고정부재를 포함하는 것을 특징으로 하는 압축기.And an elastic fixing member accommodated in the circular groove together with the second coupling part to elastically press the second coupling part to the sidewall of the circular groove. 제1항에 있어서,The method of claim 1, 상기 탄성고정부재는 판스프링인 것을 특징으로 하는 압축기.Compressor, characterized in that the elastic fixing member is a leaf spring. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 탄성고정부재는 곡선 단면을 갖는 것을 특징으로 하는 압축기.The elastic fixing member is characterized in that the compressor has a curved cross section.
KR1020060138059A 2006-12-29 2006-12-29 Compressor KR100763945B1 (en)

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CN105351195A (en) * 2015-11-13 2016-02-24 珠海格力节能环保制冷技术研究中心有限公司 Intermediate-back-pressure compressor, air conditioner with intermediate-back-pressure compressor and heat pump water heater with intermediate-back-pressure compressor

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KR200392423Y1 (en) * 2005-05-19 2005-08-17 엘지전자 주식회사 Structure of sealing for twin rotary compressor
KR20060087259A (en) * 2005-01-28 2006-08-02 엘지전자 주식회사 Assembling structure for compressing part of twin rotary compressor
KR20070019855A (en) * 2005-08-11 2007-02-15 삼성전자주식회사 Rotary compressor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060087259A (en) * 2005-01-28 2006-08-02 엘지전자 주식회사 Assembling structure for compressing part of twin rotary compressor
KR200392423Y1 (en) * 2005-05-19 2005-08-17 엘지전자 주식회사 Structure of sealing for twin rotary compressor
KR20070019855A (en) * 2005-08-11 2007-02-15 삼성전자주식회사 Rotary compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351195A (en) * 2015-11-13 2016-02-24 珠海格力节能环保制冷技术研究中心有限公司 Intermediate-back-pressure compressor, air conditioner with intermediate-back-pressure compressor and heat pump water heater with intermediate-back-pressure compressor

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