EP3173626A1 - Halteklammer für verdichter und drehverdichter - Google Patents

Halteklammer für verdichter und drehverdichter Download PDF

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Publication number
EP3173626A1
EP3173626A1 EP15851475.2A EP15851475A EP3173626A1 EP 3173626 A1 EP3173626 A1 EP 3173626A1 EP 15851475 A EP15851475 A EP 15851475A EP 3173626 A1 EP3173626 A1 EP 3173626A1
Authority
EP
European Patent Office
Prior art keywords
accumulator
compressor
bracket
cylinder
outer peripheral
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15851475.2A
Other languages
English (en)
French (fr)
Other versions
EP3173626A4 (de
Inventor
Shunsuke Yakushiji
Makoto Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP3173626A1 publication Critical patent/EP3173626A1/de
Publication of EP3173626A4 publication Critical patent/EP3173626A4/de
Withdrawn legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/007—General arrangements of parts; Frames and supporting elements
    • 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
    • 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
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/80—Other components
    • F04C2240/805—Fastening means, e.g. bolts

Definitions

  • the present invention relates to a bracket for a compressor, and a rotary compressor.
  • FIG. 8 there is a structure in which an accumulator 103 is attached via a bracket 102 to the outer peripheral surface of a housing 101 configuring a sealed container.
  • Bracket 102 is provided with a base 106, and a pair of an arm 104 and an arm 104 provided tilting towards the outside of the base 106.
  • a locking surface 104a is provided on each of that arms 104 for aligning with the outer peripheral surface 103a of the accumulator 103.
  • Bracket 102 brings the locking surface 104a of the arm 104 into contact with the outer peripheral surface 103a of the accumulator 103 so that the surfaces contact each other, and locks the end of a belt member 105 wound around the outer peripheral surface 103a of the accumulator 103 to the tips of the pair of arms 104.
  • the bracket 102 is configured affixing the accumulator 103 to the housing 101.
  • Patent Document 1 Japanese Unexamined Patent Application Publication No. H9-250477A
  • the binding portion of the accumulator and the compressor main body is only the bracket 102 as illustrated in FIG. 8 , and an intake pipe bent in an L-shape, thus, it is difficult to change the structure of the intake pipe.
  • the conventional structure as illustrated in FIG. 8 is a configuration wherein the locking surfaces 104a of the arms 104 on the bracket 102 come into contact with the outer peripheral surface 103a of the accumulator 103.
  • both of the contact surface areas are large, and there is room for improvement in that the vibration transmission rate of the compressor main body becomes large.
  • the present invention provides a bracket for a compressor, and a rotary compressor that can effectively suppress the generation of vibration and noise from the accumulator by reducing the contact surface area of the bracket for compressor.
  • a bracket for compressor according to one embodiment of the present invention is provided with a base, a pair of arms provided tilting from both ends of the base toward the outside of the base, and a contact section provided on a side of the arms opposite the side connected to the base, wherein the contact section is formed with a bend.
  • the bracket for compressor in a second embodiment of the present invention wherein the bend is curved toward the outside where the pair of arms are separated from each other.
  • bracket for compressor in a third embodiment of the present invention according to the first or second embodiment, wherein a convex portion is preferably provided in the contact section.
  • the convex portion provided on the contact section can be attached in contact with any one of the outer peripheral surfaces of the compressor main body and the accumulator.
  • the convex portion is in point contact with the outer peripheral surface, and the contact surface area can be reduced compared to when in surface contact. Therefore, it is possible to suppress the vibration transmission rate from the compressor main body to the accumulator so as to be small, it is possible to reduce the vibration of the accumulator, and to reduce the emitted noise generated from the accumulator.
  • the bracket for compressor in a fourth embodiment of the present invention according to the first or second embodiment, wherein a notch is preferably provided in the contact section.
  • the portion remaining due to the notch provided on the contact section can be attached in contact with any one of the outer peripheral surfaces of the compressor main body and the accumulator.
  • the contact surface area on the outer peripheral surface can be reduced compared to when in surface contact. Therefore, it is possible to suppress the vibration transmission rate from the compressor main body to the accumulator so as to be small, it is possible to reduce the vibration of the accumulator, and to reduce the emitted noise generated from the accumulator.
  • the bracket for compressor in a fifth embodiment of the present invention according to any one of the first to fourth embodiments, wherein a rib is preferably provided in the arms.
  • the rigidity of the arms can be increased by the rib, and in particular, it can respond to a low frequency excitation force.
  • a rotary compressor in a sixth embodiment of the present invention is a rotary compressor using a bracket for compressor according to any one of the first to fourth embodiments, provided with a compressor main body and an accumulator, wherein the compressor main body and the accumulator are connected using the bracket for compressor, a band member connected to a bend of the bracket for compressor and wound around the outer peripheral surface of the accumulator, and an elastic sheet disposed on the inside of the band member.
  • the bracket for compressor is affixed to the accumulator by the band member wound around the outer peripheral surface of accumulator being connected to the bend of the bracket for compressor.
  • the elastic sheet is disposed inside the band member, the vibration of the accumulator can be reduced by the shearing deformation of the elastic sheet, and the emitted noise generated from the accumulator can be reduced.
  • bracket for compressor, and rotary compressor of the present invention it is possible to effectively suppress the generation of vibration and noise from the accumulator by reducing the contact surface area of the bracket for compressor.
  • the rotary compressor according to the present embodiment (hereinafter simply referred to as the compressor 1) is provided with a compressor main body 10 and an accumulator 2.
  • the compressor main body 10 has a disk-shaped cylinder 20A and a cylinder 20B provided in two stages, upper and lower, inside a cylindrical sealed housing 11 having a central axis in the vertical direction.
  • the compressor main body 10 is what is called a two-cylinder type.
  • the cylindrical cylinder inner wall surfaces 20S having an axes in the vertical direction are formed in the central portion of each of the pair of cylinder 20A and cylinder 20B.
  • a cylindrical piston rotors 21A and a piston rotor 21B having an outer diameter that is smaller than the inner diameter of the cylinder internal wall surface 20S are disposed inside cylinder 20A and cylinder 20B.
  • Each of the piston rotor 21A and piston rotor 21B is inserted and affixed to eccentric shaft portion 23A and eccentric shaft portion 23B of the shaft 22 along the center axis of the housing 11. In this way, each space R having a crescent-shaped cross-section is formed between the cylinder internal wall surfaces 20S of the cylinder 20A and the cylinder 20B, and outer peripheral surfaces of the piston rotor 21A and the piston rotor 21B.
  • the upper stage side piston rotor 21A and the lower stage side piston rotor 21B are provided so that their phases are different from each other.
  • a disc-shaped separator 24 is provided between the upper and lower cylinder 20A and cylinder 20B. Due to the separator 24, the space R inside the upper stage side cylinder 20A and the space R of the lower stage side cylinder 20B do not communicate with each other, and are partitioned into a compression chamber R1 and a compression chamber R2.
  • Blades (not illustrated in the drawings) that divide each of the compression chamber R1 and the compression chamber R2 into two sections are provided in the upper and lower cylinder 20A and cylinder 20B.
  • the blades are supported in insertion channels formed extending in the radial direction of the cylinder 20A and the cylinder 20B, so that the blades can be freely move forward or backward in a direction to approach or be separated from the piston rotor 21A and the piston rotor 21B.
  • the rear end portions of the blades are pressed by a coil spring. Thus, the tip end portions of the blades are always pressed against the piston rotor 21A and the piston rotor 21B.
  • the shaft 22 is rotatably supported around its axis by an upper and lower bearing 26A and 26B affixed to the upper and lower cylinder 20A and cylinder 20B using bolts.
  • the eccentric shaft 23A and the eccentric shaft 23B offset in a direction perpendicular from the central axis of the shaft 22 to the inside of the piston rotor 21A and the piston rotor 21B are formed in the shaft 22.
  • the eccentric shaft 23A and the eccentric shaft 23B have an outer diameter that is slightly smaller than the inner diameter of the piston rotor 21A and the piston rotor 21B.
  • the shaft 22 extends protruding upwards from the bearing 26A.
  • a rotor 41 of the motor 40 is provided on the protrusion of the shaft 22 to rotate the shaft 22.
  • a stator 42 is provided affixed to the internal peripheral surface of a housing 11, against the outer peripheral portion of the rotor 41.
  • An opening 12A and an opening 12B are each formed on the inside of the housing 11 in positions facing the outer peripheral surface of the cylinder 20A and the cylinder 20B.
  • the intake port 30A and the intake port 30B that communicate up to a predetermined position of the cylinder internal wall surface 20S are formed in the cylinder 20A and the cylinder 20B, in positions facing the opening 12A and the opening 12B.
  • the accumulator 2 for gas-liquid separation of a refrigerant prior to being supplied to the compressor main body 10 is affixed to the housing 11 via a bracket for a compressor (hereinafter simply referred to as the bracket 2) on the outside of the housing 11.
  • An intake pipe 2A and an intake pipe 2B are provided in the accumulator 2 for causing the refrigerant inside the accumulator 2 to be taken into the compressor main body 10.
  • the tip portions of the intake pipe 2A and the intake pipe 2B pass through the opening 12A and the opening 12B, and are respectively connected to the intake port 30A and the intake port 30B.
  • the refrigerant is taken into the accumulator 2 from an intake opening 2a, and the refrigerant is gas-liquid separated in the accumulator 2.
  • the gas phase after gas-liquid separation is introduced from the intake pipe 2A and the intake pipe 2B via the intake port 30A and the intake port 30B of the cylinder 20A and the cylinder 20B, and is supplied to the compression chamber R1 and the compression chamber R2, which are the internal spaces of the cylinder 20A and the cylinder 20B.
  • the volume of the compression chamber R1 and the compression chamber R2 is gradually decreased by the eccentric rotation of the piston rotor 21A and the piston rotor 21B, and the refrigerant is compressed.
  • Discharge holes (not illustrated in the drawings) for discharging the refrigerant are formed at predetermined positions of the cylinder 20A and the cylinder 20B.
  • a reed valve (not illustrated in the drawings) is provided in the discharge hole. Thereby, when the pressure of the compressed refrigerant increases, the reed valve is pressed open, and the refrigerant is discharged to the outside of the cylinder 20A and the cylinder 20B.
  • the discharged refrigerant is emitted from a discharge pipe 27 provided on the upper portion of the housing 11 to an external pipe that is not illustrated.
  • bracket 3 for affixing the accumulator 2 to the outer peripheral surface of the compressor main body 10 (housing 11) will be described in detail based on drawings.
  • the bracket 3 is a plate-like member having a substantially hat shape.
  • the bracket 3 is provided with: a base 31 affixed to the outer peripheral surface of the housing 11; a pair of arms 32A and 32B provided so as to extend tilting from both ends of the base 31 toward the outside of the base 31; and contact section provided on the side of the arm 32A and the arm 32B opposite the side connected to the base 31.
  • the contact section 33 has a bend 33A and a bend 33B formed to curve toward the outside where the pair of arms 32A and 32B separate from each other.
  • a joint portion (first joint portion) 34A and a joint portion (second joint portion) 34B are provided on the tip end portion further extending from the bend 33A.
  • first end portion 35A and an end portion (second end portion) 35B of a bail strap 35 (band member) for winding around the outer peripheral surface of the accumulator 2 in the circumferential direction is connected to the joint portion 34A and the joint portion 34B.
  • the end portion 35A on one side of the bail strap 35 forms a key-shape locking portion.
  • the end portion 35A is formed so that the other end portion 35B can insert a bolt 36 therethrough, and so that the can overlap with each other at the second joint portion 34B.
  • the bend 33A on the first joint portion 34A side is larger in bending than the bend 33B on the second joint portion 34B side (the radius of curvature is smaller).
  • the first end portion 35A of the bail strap 35 is locked to the first joint portion 34A, and is affixed by the bolt 36.
  • the second end portion 35B is similarly overlapped and locked to the second joint portion 34B, and is affixed by the bolt 36.
  • Each end of the pair of bends 33A and 33B contact the outer peripheral surface of the accumulator 2. That is, as illustrated in FIG. 3 , the bracket 3 is attached to the accumulator 2 in a state where the arm 32A and the arm 32B are in line contact with the outer peripheral surface of the accumulator 2.
  • a pair of longitudinal ribs 32a extending along the extending direction of both the arm 32A and the arm 32B, and a corner rib 32b provided across the base 31 from the arm 32A and the arm 32B, are provided on the inside of the arm 32A and the arm 32B.
  • the tip of the bend 33A and the bend 33B formed on the contact section 33 of the arm 32A and the arm 32B can be in contact with and attached to the outer peripheral surface of the accumulator 2.
  • the bend 33A and the bend 33B are in line contact with the outer peripheral surface of the accumulator 2.
  • the contact surface area can be reduced compared to when in surface contact.
  • bracket for a compressor and the rotary compressor according to the present invention will be described based on the attached drawings.
  • the same reference numeral will be used and a description will be omitted; the configuration differing from the first embodiment will be described.
  • the compressor 1 is configured having an elastic sheet 37 disposed on the inside of the bail strap 35 (band member) for connecting the bracket 3A using adhesion.
  • the arm 32A and the arm 32B are attached to the base 31 having an incline contacting in a tangential direction (the two-dot chain line E illustrated in FIG. 5 ) of the accumulator 2.
  • the bracket 3A is affixed to the accumulator 2 by the bail strap 35 wound around the outer peripheral surface of the accumulator 2 contacting the joint portion 34A and the joint portion 35B of the bracket 3A.
  • the vibration of the accumulator 2 can be reduced by the shearing deformation of the elastic sheet 37 on the inside of the bail strap 35, and the emitted noise generated from the accumulator 2 can be reduced.
  • the outer peripheral portion of the accumulator 2 so as to be interposed contacting the pair of arms 32A and 32B on the bracket 3A.
  • the inclined portion of the arm 32A and the arm 32B extends in the tangential direction E of the accumulator 2.
  • the inclined portion is perpendicular to the radial direction of the accumulator 2.
  • vibration in the radial direction of the accumulator 2 can be effectively suppressed.
  • the base 31 of the bracket 3 is in contact with and attached to the compressor main body 10 side, and the contact section 33 (the bend 33A and the bend 33B) is in contact with and attached to the outer peripheral surface of the accumulator 2, but it is also possible to be conversely attached. That is, the contact section 33 can be in contact with and attached to the outer peripheral surface of either the compressor main body 10 or the accumulator 2.
  • a convex portion 38 can also be provided on a portion (contact section 33) contacting the accumulator 2 on the inside of the arm 32A and the arm 32B.
  • the convex portion 38 illustrated in FIG. 6 is composed of a ridge 38A extending along the length direction of the arm 32A and the arm 32B, and a bulging portion 38B and a bulging portion 38C.
  • Each of the convex portions 38 are provided so as to be in point contact with the outer peripheral portion of the accumulator 2.
  • the convex portions 38 (38A, 38B, 38C) provided on the contact section can be in contact with and attached to the outer peripheral surface of the accumulator 2.
  • the convex portion 38 is in point contact with the outer peripheral surface, and the contact surface area can be reduced compared to when in surface contact. Therefore, it is possible to suppress the vibration transmission rate from the compressor main body 10 to the accumulator 2 so as to be small. As a result, it is possible to reduce the vibration of the accumulator 2, and to reduce the emitted noise generated from the accumulator 2.
  • a notch 39 may be provided on the contact section 33 on the bracket 3.
  • the portion 33a remaining due to the notch 39 is in contact with and attached to the outer peripheral surface of the accumulator 2.
  • the contact surface area on the outer peripheral surface can be reduced compared to when in surface contact. Therefore, it is possible to suppress the vibration transmission rate from the compressor main body 10 to the accumulator 2 so as to be small, it is possible to reduce the vibration of the accumulator 2, and to reduce the emitted noise generated from the accumulator 2.
  • the configuration such as the length dimensions of the base 31, the arm 32A, and the arm 32B of the bracket 3, the curvature of the bend 33A and the bend 33B, the plate thickness of the bracket 3, material and the like can be appropriately changed according to conditions such as the shape of the compressor main body 10 and the accumulator 2, the magnitude of the vibration, and the like.
  • bracket for a compressor and the rotary compressor it is possible to effectively suppress the generation of vibration and noise from the accumulator by reducing the contact surface area of the bracket for compressor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)
EP15851475.2A 2014-10-16 2015-08-20 Halteklammer für verdichter und drehverdichter Withdrawn EP3173626A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014211810A JP6508807B2 (ja) 2014-10-16 2014-10-16 圧縮機用ブラケット及びロータリ圧縮機
PCT/JP2015/073419 WO2016059873A1 (ja) 2014-10-16 2015-08-20 圧縮機用ブラケット及びロータリ圧縮機

Publications (2)

Publication Number Publication Date
EP3173626A1 true EP3173626A1 (de) 2017-05-31
EP3173626A4 EP3173626A4 (de) 2017-05-31

Family

ID=55746421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15851475.2A Withdrawn EP3173626A4 (de) 2014-10-16 2015-08-20 Halteklammer für verdichter und drehverdichter

Country Status (4)

Country Link
EP (1) EP3173626A4 (de)
JP (1) JP6508807B2 (de)
CN (1) CN106795886A (de)
WO (1) WO2016059873A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107588004B (zh) * 2017-08-28 2023-08-25 珠海格力节能环保制冷技术研究中心有限公司 支撑架结构及具有其的压缩机
CN108999783B (zh) * 2018-08-23 2024-06-28 珠海凌达压缩机有限公司 一种旋转式压缩机组件及具有其的空调机和空调制冷系统
JP7175860B2 (ja) * 2019-08-23 2022-11-21 株式会社東芝 圧縮機及び空調装置
CN219415319U (zh) * 2023-02-27 2023-07-25 广东美芝精密制造有限公司 储液器支架和具有其的压缩机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6146869A (ja) * 1984-08-13 1986-03-07 株式会社日立製作所 ロ−タリ式密閉形圧縮機のアキユムレ−タ取付構造
JPH08219055A (ja) * 1995-02-14 1996-08-27 Sanyo Electric Co Ltd ロータリー圧縮機
JPH09137788A (ja) * 1995-11-14 1997-05-27 Sanyo Electric Co Ltd 密閉型回転圧縮機
CN1510291A (zh) * 2002-12-25 2004-07-07 乐金电子(天津)电器有限公司 压缩机的储液罐固定装置
CN101275797A (zh) * 2007-03-28 2008-10-01 乐金电子(天津)电器有限公司 旋转式压缩机储液罐的固定装置
JP2009162222A (ja) * 2007-12-14 2009-07-23 Daikin Ind Ltd 密閉型圧縮機
JP4591619B1 (ja) * 2009-05-29 2010-12-01 ダイキン工業株式会社 圧縮機
JP5430333B2 (ja) * 2009-10-05 2014-02-26 三菱電機株式会社 密閉型回転圧縮機
JP5355346B2 (ja) * 2009-10-21 2013-11-27 三菱電機株式会社 密閉形圧縮機
JP5899838B2 (ja) * 2011-11-11 2016-04-06 ダイキン工業株式会社 圧縮機ユニット
JP5788305B2 (ja) * 2011-12-08 2015-09-30 日立アプライアンス株式会社 電動圧縮機

Also Published As

Publication number Publication date
WO2016059873A1 (ja) 2016-04-21
CN106795886A (zh) 2017-05-31
EP3173626A4 (de) 2017-05-31
JP2016079886A (ja) 2016-05-16
JP6508807B2 (ja) 2019-05-08

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