WO2018168345A1 - Compresseur rotatif - Google Patents

Compresseur rotatif Download PDF

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Publication number
WO2018168345A1
WO2018168345A1 PCT/JP2018/005745 JP2018005745W WO2018168345A1 WO 2018168345 A1 WO2018168345 A1 WO 2018168345A1 JP 2018005745 W JP2018005745 W JP 2018005745W WO 2018168345 A1 WO2018168345 A1 WO 2018168345A1
Authority
WO
WIPO (PCT)
Prior art keywords
shell
discharge pipe
rotary compressor
compression mechanism
pipe
Prior art date
Application number
PCT/JP2018/005745
Other languages
English (en)
Japanese (ja)
Inventor
秀幸 堀畑
古谷　志保
啓 椎崎
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN201880010583.2A priority Critical patent/CN110268166B/zh
Publication of WO2018168345A1 publication Critical patent/WO2018168345A1/fr

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Classifications

    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Definitions

  • the present invention relates to a rotary compressor used in an outdoor unit or refrigerator of an air conditioner.
  • a rotary compressor used in an outdoor unit or a refrigerator of an air conditioner includes an electric motor part and a compression mechanism part in a sealed container, and the electric motor part and the compression mechanism part are connected by a shaft, and the shaft is eccentric. The piston attached to the part is revolved by the rotation of the shaft.
  • positions a shaft to a perpendicular direction what does not arrange
  • Patent Document 1 and Patent Document 2 a terminal is arranged on the shell for the purpose of reducing the overall height of the rotary compressor.
  • Patent Documents 3 to 7 a rotary compressor of the type in which the electric mechanism portion and the compression mechanism portion are arranged in the vertical direction and the shaft is arranged in the vertical direction has been proposed in which the discharge pipe is arranged at a position other than the central portion of the upper shell.
  • Patent Documents 3 to 6 are not clearly described, since the discharge pipe and the terminal are arranged on the upper shell, the discharge pipe is arranged at a position other than the central portion in relation to the terminal. is doing.
  • Patent Document 7 there is no description of the terminal, but the discharge pipe is arranged at a position other than the central portion.
  • the discharge pipe is placed at the center of the upper shell unless there is any restriction such as terminal placement.
  • the center of gravity of the rotary compressor is not the central portion of the upper shell due to the accumulator, if the discharge pipe is arranged at the central portion of the upper shell, the vibration of the discharge pipe increases.
  • the vibration of the discharge pipe increases, the vibration is transmitted to the pipe connected to the discharge pipe, the stress applied to the pipe also increases, and the pipe may be damaged.
  • an object of the present invention is to provide a rotary compressor that can reduce vibration transmitted to a pipe connected to the discharge pipe by reducing vibration of the discharge pipe.
  • a rotary compressor includes an electric motor section and a compression mechanism section in a sealed container, and the sealed container is formed as a cylindrical shell extending in a vertical direction, The upper shell for closing the upper opening of the shell shell, and the lower shell for closing the lower opening of the shell shell, the suction shell for introducing the suction refrigerant into the compression mechanism portion, the motor shell portion
  • a rotary compressor having an accumulator provided upstream of the suction pipe, connected to a terminal for feeding power, connected to the upper shell, and a discharge pipe for leading the discharge refrigerant compressed by the compression mechanism.
  • a rotary compressor according to a second aspect of the present invention is the rotary compressor according to the first aspect, wherein the discharge pipe is arranged at the gravity center position G.
  • the vibration of the discharge pipe can be reduced, and the vibration transmitted to the pipe connected to the discharge pipe can be reduced.
  • FIG. 1 is a cross-sectional view of a rotary compressor according to an embodiment of the present invention.
  • Top view conceptual diagram showing the position of the discharge pipe of the rotary compressor
  • the discharge pipe when the diameter of the trunk shell is D and the center of gravity position of the upper shell that is on the vertical line of the center of gravity including the accumulator is the center of gravity position G, the discharge pipe has a radius D / 10 around G. It is arranged within the range. According to the first aspect, the vibration of the discharge pipe can be reduced, the vibration transmitted to the pipe connected to the discharge pipe can be reduced, and the pipe stress can be reduced.
  • the discharge pipe is arranged at the gravity center position G. According to the second aspect, the vibration of the discharge pipe can be reduced most.
  • FIG. 1 is a sectional view of a rotary compressor according to this embodiment.
  • the rotary compressor according to this embodiment includes an electric motor unit 20 and a compression mechanism unit 30 in the hermetic container 10.
  • the electric motor unit 20 and the compression mechanism unit 30 are connected by a shaft 40.
  • the sealed container 10 includes a cylindrical shell 10a that extends in the vertical direction, an upper shell 10b that closes an upper opening of the shell 10a, and a lower shell 10c that closes a lower opening of the shell 10a.
  • the electric motor unit 20 includes a stator 21 that is fixed to the inner surface of the sealed container 10 and a rotor 22 that rotates within the stator 21.
  • the rotary compressor according to the present embodiment includes a first compression mechanism unit 30 ⁇ / b> A and a second compression mechanism unit 30 ⁇ / b> B as the compression mechanism unit 30.
  • the first compression mechanism 30A includes a first cylinder 31A, a first piston 32A disposed in the first cylinder 31A, and a vane (not shown) that partitions the first cylinder 31A.
  • 32A revolves in the first cylinder 31A, and sucks and compresses the low-pressure refrigerant gas.
  • the second compression mechanism 30B includes a second cylinder 31B, a second piston 32B disposed in the second cylinder 31B, and a vane that partitions the second cylinder 31B (not shown). 2), and the second piston 32B revolves in the second cylinder 31B to suck in and compress the low-pressure refrigerant gas.
  • a main bearing 51 is disposed on one surface of the first cylinder 31A, and an intermediate plate 52 is disposed on the other surface of the first cylinder 31A.
  • An intermediate plate 52 is disposed on one surface of the second cylinder 31B, and a sub-bearing 53 is disposed on the other surface of the second cylinder 31B. That is, the intermediate plate 52 partitions the first cylinder 31A and the second cylinder 31B.
  • the middle plate 52 has an opening larger than the diameter of the shaft 40.
  • the shaft 40 includes a main shaft portion 41 to which the rotor 22 is attached and supported by the main bearing 51, a first eccentric portion 42 to which the first piston 32A is attached, a second eccentric portion 43 to which the second piston 32B is attached, and a sub-bearing. And a countershaft portion 44 supported by 53.
  • the first eccentric part 42 and the second eccentric part 43 are formed with a phase difference of 180 degrees, and a connecting shaft part 45 is formed between the first eccentric part 42 and the second eccentric part 43. .
  • the first compression chamber 34A is formed between the main bearing 51 and the intermediate plate 52 between the inner peripheral surface of the first cylinder 31A and the outer peripheral surface of the first piston 32A.
  • the second compression chamber 34B is formed between the inner peripheral surface of the second cylinder 31B and the outer peripheral surface of the second piston 32B between the intermediate plate 52 and the auxiliary bearing 53.
  • the first compression chamber 34A and the second compression chamber 34B have the same volume. That is, the inner diameter of the first cylinder 31A and the inner diameter of the second cylinder 31B are the same, and the outer diameter of the first piston 32A and the outer diameter of the second piston 32B are the same.
  • the inner circumferential height of the first cylinder 31A and the inner circumferential height of the second cylinder 31B are the same, and the first piston 32A height and the second piston 32B height are the same.
  • An oil sump 11 is formed at the bottom of the sealed container 10, and an oil pickup 12 is provided at the lower end of the shaft 40.
  • an oil supply passage is formed in the shaft 40 in the axial direction, and a communication passage for supplying oil to the sliding surface of the compression mechanism unit 30 is formed in the oil supply passage.
  • first suction pipe 13A and a second suction pipe 13B Connected to the shell 10a are a first suction pipe 13A and a second suction pipe 13B for introducing the suction refrigerant into the compression mechanism section 30, and a terminal 50 for supplying power to the motor section 20.
  • a discharge pipe 14 is connected to the upper shell 10b.
  • the terminal 50 is disposed above the electric motor unit 20.
  • the first suction pipe 13A is connected to the first compression chamber 34A
  • the second suction pipe 13B is connected to the second compression chamber 34B.
  • An accumulator 15 is provided on the upstream side of the first suction pipe 13A and the second suction pipe 13B. The accumulator 15 separates the refrigerant returned from the refrigeration cycle into a liquid refrigerant and a gas refrigerant.
  • Gas refrigerant flows through the first suction pipe 13A and the second suction pipe 13B.
  • the accumulator 15 and the terminal 50 are disposed at symmetrical positions with respect to the center of the shell 10a. Due to the rotation of the shaft 40, the first piston 32A and the second piston 32B revolve in the first compression chamber 34A and the second compression chamber 34B. The gas refrigerant sucked into the first compression chamber 34A and the second compression chamber 34B from the first suction pipe 13A and the second suction pipe 13B by the revolving motion of the first piston 32A and the second piston 32B is converted into the first compression chamber 34A.
  • FIG. 2 is a top conceptual view showing the position of the discharge pipe of the rotary compressor according to this embodiment.
  • the discharge pipe 14 when the diameter of the trunk shell 10a is D and the center of gravity position of the upper shell 10b on the vertical line of the center of gravity including the accumulator 15 is G, the discharge pipe 14 has a radius D / It arrange
  • the vibration of the discharge pipe 14 can be reduced, and the vibration transmitted to the pipe connected to the discharge pipe 14 can be reduced. Pipe stress can be reduced. Further, by arranging the discharge pipe 14 at the center of gravity position G, the vibration of the discharge pipe 14 can be reduced most.
  • the present invention can also be applied to a single cylinder rotary compressor.

Landscapes

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

Abstract

La présente invention concerne un compresseur rotatif, dans lequel : un contenant étanche (10) est composé d'une coque de cylindre (10a) qui s'étend dans la direction verticale et est formée de manière cylindrique, d'une coque supérieure (10b) qui ferme l'ouverture supérieure de la coque de cylindre (10a), et d'une coque inférieure (10c) qui ferme l'ouverture inférieure de la coque de cylindre (10a) ; des tuyaux d'aspiration (13A, 13B) à travers lesquels un fluide frigorigène d'admission est introduit dans une partie mécanisme de compression (30) et une borne (50) à travers laquelle de l'énergie est fournie à une partie moteur électrique (20) sont raccordés à la coque de cylindre (10a) ; un tuyau d'évacuation (14), à travers lequel un fluide frigorigène d'évacuation comprimé au niveau de la partie mécanisme de compression (30) est évacué, est raccordé à la coque supérieure (10b) ; un accumulateur (15) est disposé sur le côté amont des tuyaux d'aspiration (13A, 13B) ; et, dans le cas où le diamètre de la coque de cylindre (10a) est D et la position de centre de gravité au niveau de la coque supérieure (10b) sur une ligne verticale du centre de gravité comprenant l'accumulateur 15 est G, en disposant le tuyau d'évacuation (14) dans la plage d'un rayon D/10 autour de G, la vibration du tuyau d'évacuation peut être réduite et ainsi la vibration transmise à un tuyau raccordé au tuyau d'évacuation (14) peut être réduite.
PCT/JP2018/005745 2017-03-17 2018-02-19 Compresseur rotatif WO2018168345A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880010583.2A CN110268166B (zh) 2017-03-17 2018-02-19 旋转式压缩机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-052416 2017-03-17
JP2017052416A JP6671052B2 (ja) 2017-03-17 2017-03-17 ロータリー式圧縮機

Publications (1)

Publication Number Publication Date
WO2018168345A1 true WO2018168345A1 (fr) 2018-09-20

Family

ID=63522029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/005745 WO2018168345A1 (fr) 2017-03-17 2018-02-19 Compresseur rotatif

Country Status (3)

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JP (1) JP6671052B2 (fr)
CN (1) CN110268166B (fr)
WO (1) WO2018168345A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7227530B1 (ja) 2021-09-30 2023-02-22 ダイキン工業株式会社 圧縮機ユニット及び冷凍装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113931843B (zh) * 2021-10-13 2023-05-09 安徽美芝精密制造有限公司 压缩机及制冷设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5991484U (ja) * 1982-12-13 1984-06-21 三洋電機株式会社 密閉型回転圧縮機
JPH04187887A (ja) * 1990-11-21 1992-07-06 Matsushita Electric Ind Co Ltd ロータリ式多段気体圧縮機
JPH0666258A (ja) * 1992-08-14 1994-03-08 Mitsubishi Heavy Ind Ltd 冷凍装置
US6372993B1 (en) * 1995-06-13 2002-04-16 Copeland Corporation Sealed terminal assembly for hermetic compressor
JP2005061348A (ja) * 2003-08-18 2005-03-10 Matsushita Electric Ind Co Ltd 密閉型圧縮機
JP2006177226A (ja) * 2004-12-22 2006-07-06 Hitachi Home & Life Solutions Inc ロータリ圧縮機及びそれを用いる空気調和機
JP2008248717A (ja) * 2007-03-29 2008-10-16 Mitsubishi Electric Corp 冷媒圧縮装置
US20100278675A1 (en) * 2007-11-08 2010-11-04 Jeong-Min Han 2 stage rotary compressor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5991484A (ja) * 1982-11-17 1984-05-26 三菱電機株式会社 工業用計算機システムにおけるデイスプレイ装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5991484U (ja) * 1982-12-13 1984-06-21 三洋電機株式会社 密閉型回転圧縮機
JPH04187887A (ja) * 1990-11-21 1992-07-06 Matsushita Electric Ind Co Ltd ロータリ式多段気体圧縮機
JPH0666258A (ja) * 1992-08-14 1994-03-08 Mitsubishi Heavy Ind Ltd 冷凍装置
US6372993B1 (en) * 1995-06-13 2002-04-16 Copeland Corporation Sealed terminal assembly for hermetic compressor
JP2005061348A (ja) * 2003-08-18 2005-03-10 Matsushita Electric Ind Co Ltd 密閉型圧縮機
JP2006177226A (ja) * 2004-12-22 2006-07-06 Hitachi Home & Life Solutions Inc ロータリ圧縮機及びそれを用いる空気調和機
JP2008248717A (ja) * 2007-03-29 2008-10-16 Mitsubishi Electric Corp 冷媒圧縮装置
US20100278675A1 (en) * 2007-11-08 2010-11-04 Jeong-Min Han 2 stage rotary compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7227530B1 (ja) 2021-09-30 2023-02-22 ダイキン工業株式会社 圧縮機ユニット及び冷凍装置
WO2023053672A1 (fr) * 2021-09-30 2023-04-06 ダイキン工業株式会社 Unité de compresseur et dispositif de réfrigération
JP2023051659A (ja) * 2021-09-30 2023-04-11 ダイキン工業株式会社 圧縮機ユニット及び冷凍装置

Also Published As

Publication number Publication date
JP2018155169A (ja) 2018-10-04
CN110268166B (zh) 2021-08-03
JP6671052B2 (ja) 2020-03-25
CN110268166A (zh) 2019-09-20

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