WO2019159497A1 - Accumulator, and compressor for air conditioning - Google Patents

Accumulator, and compressor for air conditioning Download PDF

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Publication number
WO2019159497A1
WO2019159497A1 PCT/JP2018/044426 JP2018044426W WO2019159497A1 WO 2019159497 A1 WO2019159497 A1 WO 2019159497A1 JP 2018044426 W JP2018044426 W JP 2018044426W WO 2019159497 A1 WO2019159497 A1 WO 2019159497A1
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WO
WIPO (PCT)
Prior art keywords
compressor
accumulator
pipe
support member
center
Prior art date
Application number
PCT/JP2018/044426
Other languages
French (fr)
Japanese (ja)
Inventor
俊輔 薬師寺
将平 寺崎
小川　真
紘史 島谷
将成 宇野
Original Assignee
三菱重工サーマルシステムズ株式会社
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 三菱重工サーマルシステムズ株式会社 filed Critical 三菱重工サーマルシステムズ株式会社
Priority to EP18906496.7A priority Critical patent/EP3754270B1/en
Priority to ES18906496T priority patent/ES2969941T3/en
Priority to CN201890001531.4U priority patent/CN212778059U/en
Publication of WO2019159497A1 publication Critical patent/WO2019159497A1/en
Priority to AU2020101791A priority patent/AU2020101791A4/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16—Filtration; Moisture separation
    • 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
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/804—Accumulators for refrigerant circuits
    • 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
    • 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
    • F04C2240/806—Pipes for fluids; Fittings therefor
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/12—Vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/02—Compressor arrangements of motor-compressor units
    • F25B31/026—Compressor arrangements of motor-compressor units with compressor of rotary type

Definitions

  • the present invention relates to an accumulator and an air conditioning compressor.
  • Patent Document 1 discloses a structure in which a pipe for supplying refrigerant gas from an accumulator to a compressor body is supported by a support member (connecting member) provided inside the accumulator.
  • the excitation force due to the magnetism of the motor driving the compressor main body or the vibration due to the pulsation of the compressor main body is provided adjacent to the compressor main body. Force acts.
  • the exciting force caused by the pulsation of the compressor body vibrates the piping in the accumulator, so that vibration is transmitted to the accumulator through the support member, which may cause noise generation.
  • This invention is made in view of the above, Comprising:
  • produced with the accumulator provided adjacent to the compressor main body of the compressor for an air conditioning is suppressed, and the noise generate
  • the present invention is provided adjacent to a compressor body of an air conditioning compressor, and compresses the refrigerant gas separated from gas and liquid from a container body through a pipe.
  • An accumulator for supplying to the machine main body, the outer edge of the accumulator being attached to the inner wall of the container main body, and a support member having a support hole for supporting the pipe inside the container main body, the center of the support hole being It is characterized by being displaced with respect to a center line passing through the center of the support member along the direction of the most dominant excitation force transmitted from the compressor body.
  • This configuration distributes part of the most dominant excitation force transmitted from the pipe to the support member in the direction of twisting the support member. As a result, the excitation force transmitted from the piping to the container body of the accumulator via the support member can be reduced. Therefore, according to the accumulator according to the present invention, vibration generated in the accumulator provided adjacent to the compressor main body of the air conditioning compressor can be suppressed, and noise generated in the air conditioning compressor can be reduced.
  • the support member has a plurality of through holes provided at positions different from the support holes, and a meat portion extending from the outer edge extends between the adjacent through holes of the support member. And it is preferable that the center of the said support hole has shifted
  • This configuration disperses a part of the excitation force transmitted from the pipe to the meat part in the direction of twisting the meat part, regardless of the direction of the excitation force transmitted from the compressor body. As a result, it is possible to reduce the excitation force transmitted from the piping to the accumulator container body through the meat part of the support member, and to suppress vibrations generated in the accumulator.
  • a plurality of the pipes are arranged in the container main body corresponding to the number of compression chambers of the compressor main body, and a plurality of the support holes are provided corresponding to the plurality of the arranged pipes.
  • the center of the support hole is preferably deviated from the center line.
  • an air-conditioning compressor of the present invention includes the accumulator and a compressor main body to which a refrigerant gas is supplied from the accumulator through the pipe.
  • This configuration can suppress vibration generated by an accumulator provided adjacent to the compressor main body of the air conditioning compressor and reduce noise generated by the air conditioning compressor.
  • FIG. 1 is a schematic diagram illustrating an accumulator and an air conditioning compressor according to an embodiment.
  • FIG. 2 is a cross-sectional view showing the support member.
  • FIG. 3 is a cross-sectional view showing a modification of the support member.
  • the air-conditioning compressor 1 is applied to, for example, a room air conditioner.
  • the air conditioner is configured to include an outdoor unit disposed outdoors and an indoor unit disposed indoors, and a refrigerant is circulated between the outdoor unit and the indoor unit. By exchanging heat outside the room, the room is cooled, heated, or air-conditioned.
  • the air conditioning compressor 1 is disposed in an outdoor unit, sucks and compresses refrigerant, and supplies the refrigerant to an outdoor unit or an external element of the indoor unit.
  • the air conditioning compressor 1 is not limited to a room air conditioner, and may be applied to an air conditioner for any application.
  • the air conditioning compressor 1 includes a housing 2, a drive unit 3, a compressor body 4, and an accumulator 5.
  • the housing 2 has a substantially cylindrical shape whose top and bottom are sealed, and the drive unit 3 and the compressor body 4 are accommodated therein.
  • the casing 2 is arranged with its cylinder vertically set up, and a discharge pipe 21 is provided on the top thereof.
  • the bottom of the housing 2 is configured as an oil reservoir 22, and the oil reservoir 22 stores a lubricating oil L supplied to the compressor body 4.
  • the driving unit 3 is a slot motor, and includes a stator 31, a rotor 32, and a rotating shaft 33.
  • the drive unit 3 is fixed to the inner wall surface of the housing 2 by a stator 31.
  • the rotor 32 is provided so as to be rotatable with respect to the stator 31 and is provided with the rotating shaft 33 directed vertically downward.
  • the rotating shaft 33 has a lower end connected to the compressor body 4.
  • the drive unit 3 is supplied with power from the outside of the housing 2 via a wiring (not shown).
  • the compressor body 4 is disposed below the drive unit 3 in the housing 2.
  • the compressor body 4 is a two-cylinder twin rotary type compression mechanism.
  • the compressor main body 4 includes a first compression unit 41 and a second compression unit 42 that are arranged in multiple upper and lower stages.
  • the first compression unit 41 and the second compression unit 42 are arranged side by side along the axis of rotation of the rotation shaft 33.
  • the first compression unit 41 includes a rotor 411 and a compression chamber 412.
  • the second compression unit 42 includes a rotor 421 and a compression chamber 422.
  • a partition plate 43 is provided between the first compression unit 41 and the second compression unit 42.
  • the partition plate 43 constitutes a part of the walls of the compression chambers 412 and 422.
  • the partition plate 43 has an insertion hole 431 through which the rotation shaft 33 is inserted.
  • Bearings 44 are provided above and below the first compression portion 41 and the second compression portion 42.
  • the bearing 44 supports the rotating shaft 33 rotatably.
  • the rotation shaft 33 is provided with a crank 331 at a position corresponding to the first compression section 41 and a crank 332 at a position corresponding to the second compression section 42.
  • the crank 331 is provided with a rotor 411, and the crank 332 is provided with a rotor 421.
  • the rotary shaft 33 is provided with an oil supply passage 333 inside the lower end portion thereof.
  • the lower end of the rotating shaft 33 is provided so as to reach the oil reservoir 22 of the housing 2, and the lubricating oil L is supplied from the lower end to the compressor body 4 through the oil supply passage 333.
  • the oil supply passage 333 includes an oil supply passage 333 a that penetrates the crank 331 corresponding to the first compression portion 41 and an oil supply passage 333 b that penetrates the crank 332 corresponding to the second compression portion 42.
  • the accumulator 5 is a separator that gas-liquid separates a refrigerant gas that is a working fluid.
  • the accumulator 5 is disposed outside the casing 2 adjacent to the compressor body 4 (adjacent to the casing 2).
  • the accumulator 5 includes a container body 50, a plurality of pipes 51, and a support member 60.
  • the container body 50 has a substantially cylindrical shape whose top and bottom are sealed.
  • the container body 50 is connected to the housing 2 via a connecting member (not shown).
  • the container body 50 is provided with an inflow pipe 501 at the top.
  • the pipe 51 includes a first pipe 511 and a second pipe 512.
  • the first pipe 511 and the second pipe 512 extend from the bottom of the container main body 50 toward the top of the inside of the container main body 50.
  • One end of the first pipe 511 is connected to the compression chamber 412 of the first compression unit 41, and the other end is opened inside the container body 50.
  • the first pipe 511 is supported by a support member 60 described later.
  • the second pipe 512 is a pipe for supplying fluid to the second compression section 42 of the compressor body 4.
  • One end of the second pipe 512 is connected to the compression chamber 422 of the second compression section 42, and the other end is opened inside the container body 50.
  • the second pipe 512 is supported by a support member 60 described later.
  • refrigerant gas having passed through an external element is supplied from the inflow pipe 501 into the container body 50 of the accumulator 5.
  • the refrigerant gas is further supplied to the first compression part 41 of the compressor body 4 via the first pipe 511 and is supplied to the second compression part 42 of the compressor body 4 via the second pipe 512.
  • the power is supplied to the drive unit 3 and the rotary shaft 33 rotates, whereby the rotors 411 and 421 rotate eccentrically in the compression chambers 412 and 422 by the cranks 331 and 332, respectively.
  • the refrigerant gas in 422 is compressed.
  • the refrigerant gas compressed in the compression chambers 412 and 422 is discharged from the discharge pipe 21 to the outside of the housing 2 and supplied to the external element.
  • the lubricating oil L is supplied into the compression chambers 412 and 422.
  • a part of the lubricating oil L supplied to the compression chambers 412 and 422 is supplied to the external element in a state of being contained in the compressed refrigerant gas.
  • the accumulator 5 gas-liquid-separates the lubricating oil L and dust from the refrigerant gas that has passed through the external element by means of a net-like filter 53 provided at the upper part of the container body 50.
  • the accumulator 5 supplies the gas-liquid separated refrigerant gas to the compression chambers 412, 422, while storing the gas-liquid separated lubricating oil L at the bottom of the container body 50.
  • the accumulator 5 has an oil return hole 511a in the first pipe 511 and an oil return hole 512a in the second pipe 512, and returns the lubricating oil L collected at the bottom of the container body 50 to the compression chambers 412 and 422. It is configured as follows.
  • FIG. 2 is a cross-sectional view showing the support member.
  • the support member 60 includes a bottom portion 61, a wall portion 62, a support hole 63, and a through hole 64 (see FIG. 2).
  • the bottom 61 is formed in a circular shape as shown in FIG.
  • the wall 62 rises vertically from the outer edge 61 a of the bottom 61. That is, the support member 60 is formed in a bowl shape by the bottom portion 61 and the wall portion 62.
  • the wall part 62 and the outer edge 61a are fixed to the inner wall of the container main body 50 by welding, for example.
  • the position of the support member 60 in the height direction in the container main body 50 may be any position as long as the first pipe 511 and the second pipe 512 can be appropriately supported. When it is divided into a plurality of parts at any position in the direction, it is preferably provided at the joint.
  • the support hole 63 is a through hole formed in the bottom 61 as shown in FIGS. 1 and 2.
  • the support hole 63 includes a first support hole 631 and a second support hole 632.
  • the first support hole 631 and the second support hole 632 are formed in the bottom portion 61 with a space therebetween.
  • the inner diameter of the first support hole 631 is slightly larger than the outer diameter of the first pipe 511.
  • the first pipe 511 is inserted into the first support hole 631 and supports the first pipe 511 in the container body 50.
  • the inner diameter of the second support hole 632 is slightly larger than the outer diameter of the second pipe 512.
  • the second support hole 632 is inserted with the second pipe 512 and supports the second pipe 512 in the container body 50. In this way, by supporting the first pipe 511 and the second pipe 512 by the support member 60, the first pipe 511 and the second pipe 512 vibrate within the container body 50 and generate noise by contacting each other. It is suppressed.
  • a plurality of through holes 64 are formed at positions different from the first support hole 631 and the second support hole 632 of the bottom 61.
  • the plurality of through holes 64 are holes provided for circulating the refrigerant gas, the lubricating oil L, and the like in the container main body 50, and prevent the volume of the accumulator 5 from being reduced by the support member 60.
  • the plurality of through holes 64 are disposed at positions that are symmetrical with respect to the center 60a of the support member 60 (the center of the bottom 61).
  • the accumulator 5 when the accumulator 5 is provided adjacent to the compressor main body 4 (adjacent to the housing 2) as in the air conditioning compressor 1 according to the present embodiment, the accumulator 5 includes the compressor main body 4.
  • the first piping 511 and the second piping 512, the casing 2 and the container main body 50 are connected by the excitation force caused by the magnetism of the drive unit 3 that drives the motor and the vibration force caused by the pulsation of the compressor body 4. It acts via a connecting member (not shown).
  • the exciting force caused by the pulsation of the compressor body 4 vibrates the piping in the accumulator 5, so that vibration is transmitted to the accumulator 5 through the support member 60, which may cause noise generation.
  • the center 631a of the first support hole 631 and the center 632a of the second support hole 632 formed in the support member 60 are center lines passing through the center 60a of the support member 60 as shown in FIG. It is deviated from A1.
  • the center line A1 is the most dominant excitation illustrated by solid line arrows in FIG. 2 among the excitation forces transmitted to the first pipe 511 and the second pipe 512 by the pulsation generated by the operation of the compressor body 4.
  • Dislaced from the center line A1 means a position where the center 631a of the first support hole 631 and the center 632a of the second support hole 632 do not coincide with the center line A1 (position away from the center line A1). Means to be placed in.
  • vibration generated in the accumulator 5 provided adjacent to the compressor body 4 of the air conditioning compressor 1 is suppressed, and the air conditioning is performed. Noise generated in the compressor 1 can be reduced.
  • a plurality of pipes 51 (first pipe 511, second pipe 512) are arranged in the container body 50 corresponding to the number of compression chambers 412, 422 of the compressor body 4, and support holes 63 (first support holes). 631, second support holes 632) are provided corresponding to the pipe 51, and the centers of all the support holes 63 (the center 631a of the first support hole 631 and the center 632a of the second support hole 632) are center lines. It is deviated from A1.
  • FIG. 3 is a cross-sectional view showing a modification of the support member.
  • the support member 600 shown in FIG. 3 has a plurality of through holes 640 instead of the plurality of through holes 64 of the support member 60 shown in FIG.
  • the other components of the support member 600 are the same as those of the support member 60, and thus the same reference numerals are given and description thereof is omitted.
  • the plurality of through holes 640 include a pair of large diameter holes 641 and 642 and a pair of small diameter holes 643 and 644.
  • the pair of large-diameter holes 641 and 642 are arranged with the center 60a sandwiched in the vertical direction in the drawing.
  • the pair of small diameter holes 643 and 644 are arranged with the center 60a sandwiched in the left-right direction in the drawing.
  • the shapes and positions of the through holes 64 and 640 shown in FIGS. 2 and 3 are examples, and the accumulator 5 may be used as long as it is formed at a position different from the first support hole 631 and the second support hole 632. Various shapes and positions can be adopted according to the performance required for the.
  • the meat portion 65 extending from the outer edge 61a extends between the adjacent through holes 640 of the support member 600.
  • the meat portion 65 includes meat portions 651, 652, 653, 654 as illustrated.
  • the meat portion 651 is a portion extending between the large diameter hole 641 and the small diameter hole 643.
  • the meat portion 652 is a portion extending between the large diameter hole 641 and the small diameter hole 644.
  • the meat portion 653 is a portion extending between the large diameter hole 642 and the small diameter hole 643.
  • the meat portion 654 is a portion extending between the large diameter hole 642 and the small diameter hole 644.
  • each two-dot chain line is along the center line B ⁇ b> 1 along the extending direction of the meat part 651, the center line B ⁇ b> 2 along the extending direction of the meat part 652, and the extending direction of the meat part 653.
  • a center line B3 along the extending direction of the flesh portion 654 is shown.
  • the “extending direction” is a direction extending from the outer edge 61 a of the meat portions 651, 652, 653, 654 toward the center 60 a side of the support member 600.
  • the center 631a of the first support hole 631 and the center 632a of the second support hole 632 are deviated from the center lines B1, B2, B3, and B4 as shown in the figure.
  • the center lines B1, B2, B3, B4 are displaced means that the center 631a of the first support hole 631 and the center 632a of the second support hole 632 are different from the center lines B1, B2, B3, B4. This means that they are arranged at positions that do not match (positions away from the center lines B1, B2, B3, and B4).
  • the shapes of the support members 60 and 600 are not limited to those shown in the present embodiment.
  • the support members 60 and 600 may not include the wall portion 62 as long as they can be stably fixed to the container body 50.
  • the support members 60 and 600 are provided with cylindrical portions that protrude from the edge portions of the first support hole 631 and the second support hole 632 in at least one of the vertical directions, and the first pipe 511 and the first pipe are formed by the cylindrical portions. It is good also as a structure which supports the outer periphery of the two piping 512 widely.
  • the support members 60 and 600 may have the bottom portion 61 formed in a shape other than the circular shape according to the inner surface shape of the container main body 50.
  • the configuration of the accumulator 5 according to the embodiment has been described for the twin rotary type air conditioning compressor 1, but the accumulator 5 according to the embodiment may be a single rotary type air conditioning compressor or a scroll, for example.
  • the present invention may be applied to any air-conditioning compressor such as a type air-conditioning compressor.
  • the support member 60 is a support for supporting one piping 51.
  • One hole 63 may be provided. Also in this case, it is sufficient that the center of the support hole 63 is deviated from at least the center line A1 shown in FIG. 2, and is deviated from the center lines B1, B2, B3, and B4 shown in FIG. More preferable.
  • the support member 60 corresponds to the number of the plurality of pipings 51. It is only necessary to provide three or more support holes 63. Also in this case, the centers of the three or more support holes 63 need only be deviated from the center line A1 shown in FIG. 2, and are deviated from the center lines B1, B2, B3, and B4 shown in FIG. It is more preferable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

This compressor for air conditioning is provided with an accumulator which is provided adjacent to a compressor body, and which supplies a refrigerant gas that has been subjected to gas-liquid separation, from a container body to the compressor body by means of a first pipe and a second pipe. The accumulator is provided with a support member 60, an outer edge 61a of which is attached to an inner wall of the container body, the support member 60 having a first support hole 631 that supports the first pipe and a second support hole 632 that supports the second pipe inside the container body. The center 631a of the first support hole 631 and the center 632a of the second support hole 632 are positioned away from a center line A1 that passes through the center 60a of the support member 60 along the direction D of the most dominant exciting force transmitted from the compressor body 4.

Description

アキュムレータおよび空調用圧縮機Accumulator and compressor for air conditioning
　本発明は、アキュムレータおよび空調用圧縮機に関する。 The present invention relates to an accumulator and an air conditioning compressor.
　従来、空調用圧縮機において、冷媒ガスを潤滑油や異物等から気液分離させて圧縮機本体へと供給するためのアキュムレータに関する技術が知られている。例えば、特許文献１には、アキュムレータから圧縮機本体へと冷媒ガスを供給するための配管を、アキュムレータの内部に設けられた支持部材（連結部材）により支持する構造が開示されている。 Conventionally, in an air-conditioning compressor, a technique related to an accumulator for supplying a refrigerant gas to a compressor main body by gas-liquid separation from lubricating oil or foreign matter is known. For example, Patent Document 1 discloses a structure in which a pipe for supplying refrigerant gas from an accumulator to a compressor body is supported by a support member (connecting member) provided inside the accumulator.
特開２０１１－１６９１８３号公報JP 2011-169183 A
　上記特許文献１に記載のようなアキュムレータは、圧縮機本体に隣接して設けられる場合、圧縮機本体を駆動するモータの磁気に起因した加振力や、圧縮機本体の脈動に起因した加振力が作用する。特に、圧縮機本体の脈動による加振力がアキュムレータ内の配管を振動させることにより、支持部材を介してアキュムレータに振動が伝達され、騒音発生の要因となるおそれがある。 When the accumulator as described in Patent Document 1 is provided adjacent to the compressor main body, the excitation force due to the magnetism of the motor driving the compressor main body or the vibration due to the pulsation of the compressor main body is provided. Force acts. In particular, the exciting force caused by the pulsation of the compressor body vibrates the piping in the accumulator, so that vibration is transmitted to the accumulator through the support member, which may cause noise generation.
　本発明は、上記に鑑みてなされたものであって、空調用圧縮機の圧縮機本体に隣接して設けられるアキュムレータで発生する振動を抑制し、空調用圧縮機で発生する騒音を低減させることを目的とする。 This invention is made in view of the above, Comprising: The vibration generate | occur | produced with the accumulator provided adjacent to the compressor main body of the compressor for an air conditioning is suppressed, and the noise generate | occur | produced with the compressor for an air conditioning is reduced. With the goal.
　上述した課題を解決し、目的を達成するために、本発明は、空調用圧縮機の圧縮機本体に隣接して設けられ、気液分離させた冷媒ガスを容器本体から配管を介して前記圧縮機本体へと供給するアキュムレータであって、外縁が前記容器本体の内壁に取り付けられ、前記容器本体の内部で前記配管を支持する支持孔を有する支持部材を備え、前記支持孔の中心は、前記圧縮機本体から伝達される最も支配的な加振力の方向に沿って前記支持部材の中心を通る中心線に対してずれていることを特徴とする。 In order to solve the above-described problems and achieve the object, the present invention is provided adjacent to a compressor body of an air conditioning compressor, and compresses the refrigerant gas separated from gas and liquid from a container body through a pipe. An accumulator for supplying to the machine main body, the outer edge of the accumulator being attached to the inner wall of the container main body, and a support member having a support hole for supporting the pipe inside the container main body, the center of the support hole being It is characterized by being displaced with respect to a center line passing through the center of the support member along the direction of the most dominant excitation force transmitted from the compressor body.
　この構成により、配管から支持部材へと伝達される最も支配的な加振力の一部が支持部材をひねる方向に分散される。その結果、配管から支持部材を介してアキュムレータの容器本体へと伝達される加振力を低減させることができる。従って、本発明にかかるアキュムレータによれば、空調用圧縮機の圧縮機本体に隣接して設けられるアキュムレータで発生する振動を抑制し、空調用圧縮機で発生する騒音を低減させることができる。 This configuration distributes part of the most dominant excitation force transmitted from the pipe to the support member in the direction of twisting the support member. As a result, the excitation force transmitted from the piping to the container body of the accumulator via the support member can be reduced. Therefore, according to the accumulator according to the present invention, vibration generated in the accumulator provided adjacent to the compressor main body of the air conditioning compressor can be suppressed, and noise generated in the air conditioning compressor can be reduced.
　また、前記支持部材は、前記支持孔とは異なる位置に設けられた複数の貫通孔を有し、前記支持部材の隣り合う前記貫通孔同士の間には、前記外縁から延びる肉部が延在し、前記支持孔の中心は、前記肉部の前記外縁から前記支持部材の前記中心側に向けて延びる延在方向に沿った中心線に対してずれていることが好ましい。 The support member has a plurality of through holes provided at positions different from the support holes, and a meat portion extending from the outer edge extends between the adjacent through holes of the support member. And it is preferable that the center of the said support hole has shifted | deviated with respect to the centerline along the extension direction extended toward the said center side of the said supporting member from the said outer edge of the said meat | flesh part.
　この構成により、圧縮機本体から伝達される加振力がいかなる方向であっても、配管から肉部へと伝わる加振力の一部が肉部をひねる方向に分散される。その結果、配管から支持部材の肉部を介してアキュムレータの容器本体へと伝達される加振力を低減させ、アキュムレータで発生する振動を抑制することができる。 This configuration disperses a part of the excitation force transmitted from the pipe to the meat part in the direction of twisting the meat part, regardless of the direction of the excitation force transmitted from the compressor body. As a result, it is possible to reduce the excitation force transmitted from the piping to the accumulator container body through the meat part of the support member, and to suppress vibrations generated in the accumulator.
　また、前記配管は、前記圧縮機本体の圧縮室の数に対応して前記容器本体内に複数配置され、前記支持孔は、複数配置された前記配管に対応して複数設けられ、すべての前記支持孔の中心が、前記中心線に対してずれていることが好ましい。 Further, a plurality of the pipes are arranged in the container main body corresponding to the number of compression chambers of the compressor main body, and a plurality of the support holes are provided corresponding to the plurality of the arranged pipes. The center of the support hole is preferably deviated from the center line.
　この構成により、配管が複数ある場合にも、各配管から支持部材を介してアキュムレータの容器本体へと伝達される加振力を低減させ、アキュムレータで発生する振動を抑制することができる。 With this configuration, even when there are a plurality of pipes, it is possible to reduce the vibration force transmitted from each pipe to the container body of the accumulator through the support member, and to suppress vibrations generated by the accumulator.
　上述した課題を解決し、目的を達成するために、本発明の空調用圧縮機は、上記アキュムレータと、前記配管を介して前記アキュムレータから冷媒ガスが供給される圧縮機本体とを備えることを特徴とする。 In order to solve the above-described problems and achieve the object, an air-conditioning compressor of the present invention includes the accumulator and a compressor main body to which a refrigerant gas is supplied from the accumulator through the pipe. And
　この構成により、空調用圧縮機の圧縮機本体に隣接して設けられるアキュムレータで発生する振動を抑制し、空調用圧縮機で発生する騒音を低減させることができる。 This configuration can suppress vibration generated by an accumulator provided adjacent to the compressor main body of the air conditioning compressor and reduce noise generated by the air conditioning compressor.
図１は、実施形態にかかるアキュムレータおよび空調用圧縮機を示す概略図である。FIG. 1 is a schematic diagram illustrating an accumulator and an air conditioning compressor according to an embodiment. 図２は、支持部材を示す横断面図である。FIG. 2 is a cross-sectional view showing the support member. 図３は、支持部材の変形例を示す横断面図である。FIG. 3 is a cross-sectional view showing a modification of the support member.
　以下に、本発明にかかるアキュムレータおよび空調用圧縮機の実施形態を図面に基づいて詳細に説明する。なお、この実施形態によりこの発明が限定されるものではない。 Hereinafter, embodiments of an accumulator and an air conditioning compressor according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment.
　実施形態にかかる空調用圧縮機１は、例えば、室用の空気調和機に適用される。空気調和機としては、図には明示しないが、室外に配置される室外ユニットと、室内に配置される室内ユニットとを含み構成され、室外ユニットおよび室内ユニットの間に冷媒を循環させて室内および室外にて熱交換を行うことにより、室内の冷房、暖房、または冷暖房を行う。かかる空気調和機において、空調用圧縮機１は、室外ユニットに配置され、冷媒を吸入・圧縮して室外ユニットまたは室内ユニットの外部要素に供給する。なお、空調用圧縮機１は、室用の空気調和機に限られず、いかなる用途の空気調和機に適用されてもよい。 The air-conditioning compressor 1 according to the embodiment is applied to, for example, a room air conditioner. Although not explicitly shown in the figure, the air conditioner is configured to include an outdoor unit disposed outdoors and an indoor unit disposed indoors, and a refrigerant is circulated between the outdoor unit and the indoor unit. By exchanging heat outside the room, the room is cooled, heated, or air-conditioned. In such an air conditioner, the air conditioning compressor 1 is disposed in an outdoor unit, sucks and compresses refrigerant, and supplies the refrigerant to an outdoor unit or an external element of the indoor unit. The air conditioning compressor 1 is not limited to a room air conditioner, and may be applied to an air conditioner for any application.
　空調用圧縮機１は、図１に示すように、筐体２と、駆動部３と、圧縮機本体４と、アキュムレータ５を含み構成されている。 As shown in FIG. 1, the air conditioning compressor 1 includes a housing 2, a drive unit 3, a compressor body 4, and an accumulator 5.
　筐体２は、上下が密閉された略円筒形状をなし、その内部に駆動部３、圧縮機本体４が収容されている。筐体２は、その円筒を垂直に立てて配置されており、その頂部に吐出管２１が設けられている。また、筐体２の底部は、油溜２２として構成されており、この油溜２２には圧縮機本体４に供給される潤滑油Ｌが溜められている。 The housing 2 has a substantially cylindrical shape whose top and bottom are sealed, and the drive unit 3 and the compressor body 4 are accommodated therein. The casing 2 is arranged with its cylinder vertically set up, and a discharge pipe 21 is provided on the top thereof. In addition, the bottom of the housing 2 is configured as an oil reservoir 22, and the oil reservoir 22 stores a lubricating oil L supplied to the compressor body 4.
　駆動部３は、スロットモータであり、固定子３１と、回転子３２と、回転軸３３とを有する。駆動部３は、固定子３１にて筐体２の内壁面に固定されている。回転子３２は、固定子３１に対して回転可能に設けられていると共に、回転軸３３を鉛直下方に向けて設けられている。回転軸３３は、その下端部が圧縮機本体４に接続されている。この駆動部３は、図示しない配線を介して筐体２の外部から電源が供給される。 The driving unit 3 is a slot motor, and includes a stator 31, a rotor 32, and a rotating shaft 33. The drive unit 3 is fixed to the inner wall surface of the housing 2 by a stator 31. The rotor 32 is provided so as to be rotatable with respect to the stator 31 and is provided with the rotating shaft 33 directed vertically downward. The rotating shaft 33 has a lower end connected to the compressor body 4. The drive unit 3 is supplied with power from the outside of the housing 2 via a wiring (not shown).
　圧縮機本体４は、筐体２内にて駆動部３の下方に配置されている。本実施形態において、圧縮機本体４は、２気筒のツインロータリー式の圧縮機構である。圧縮機本体４は、第一圧縮部４１と第二圧縮部４２とが上下多段に構成されている。第一圧縮部４１および第二圧縮部４２は、回転軸３３の回転の軸心に沿って並べて配置されている。第一圧縮部４１は、ロータ４１１および圧縮室４１２を有する。第二圧縮部４２は、ロータ４２１および圧縮室４２２を有する。第一圧縮部４１と第二圧縮部４２との間には、仕切板４３が設けられている。仕切板４３は、圧縮室４１２、４２２の壁の一部を構成している。仕切板４３は、回転軸３３を挿通する挿通穴４３１が形成されている。第一圧縮部４１および第二圧縮部４２の上側および下側には、軸受４４が設けられる。軸受４４は、回転軸３３を回転自在に支持する。回転軸３３は、第一圧縮部４１に対応する位置にクランク３３１が設けられ、第二圧縮部４２に対応する位置にクランク３３２が設けられている。クランク３３１は、ロータ４１１が設けられ、クランク３３２は、ロータ４２１が設けられている。 The compressor body 4 is disposed below the drive unit 3 in the housing 2. In the present embodiment, the compressor body 4 is a two-cylinder twin rotary type compression mechanism. The compressor main body 4 includes a first compression unit 41 and a second compression unit 42 that are arranged in multiple upper and lower stages. The first compression unit 41 and the second compression unit 42 are arranged side by side along the axis of rotation of the rotation shaft 33. The first compression unit 41 includes a rotor 411 and a compression chamber 412. The second compression unit 42 includes a rotor 421 and a compression chamber 422. A partition plate 43 is provided between the first compression unit 41 and the second compression unit 42. The partition plate 43 constitutes a part of the walls of the compression chambers 412 and 422. The partition plate 43 has an insertion hole 431 through which the rotation shaft 33 is inserted. Bearings 44 are provided above and below the first compression portion 41 and the second compression portion 42. The bearing 44 supports the rotating shaft 33 rotatably. The rotation shaft 33 is provided with a crank 331 at a position corresponding to the first compression section 41 and a crank 332 at a position corresponding to the second compression section 42. The crank 331 is provided with a rotor 411, and the crank 332 is provided with a rotor 421.
　また、回転軸３３は、その下端部の内部に油供給通路３３３が設けられている。回転軸３３の下端は、筐体２の油溜２２に至って設けられており、この下端から潤滑油Ｌが油供給通路３３３を介して圧縮機本体４に供給される。なお、油供給通路３３３は、第一圧縮部４１に対応するクランク３３１を貫通する油供給通路３３３ａと、第二圧縮部４２に対応するクランク３３２を貫通する油供給通路３３３ｂとを備える。 Further, the rotary shaft 33 is provided with an oil supply passage 333 inside the lower end portion thereof. The lower end of the rotating shaft 33 is provided so as to reach the oil reservoir 22 of the housing 2, and the lubricating oil L is supplied from the lower end to the compressor body 4 through the oil supply passage 333. The oil supply passage 333 includes an oil supply passage 333 a that penetrates the crank 331 corresponding to the first compression portion 41 and an oil supply passage 333 b that penetrates the crank 332 corresponding to the second compression portion 42.
　アキュムレータ５は、作動流体である冷媒ガスを気液分離するセパレータである。アキュムレータ５は、圧縮機本体４に隣接して（筐体２に隣接して）、筐体２の外部に配置される。アキュムレータ５は、容器本体５０と、複数の配管５１と、支持部材６０とを備える。 The accumulator 5 is a separator that gas-liquid separates a refrigerant gas that is a working fluid. The accumulator 5 is disposed outside the casing 2 adjacent to the compressor body 4 (adjacent to the casing 2). The accumulator 5 includes a container body 50, a plurality of pipes 51, and a support member 60.
　容器本体５０は、上下が密閉された略円筒形状をなす。容器本体５０は、図示しない連結部材を介して筐体２に連結されている。容器本体５０は、頂部に流入管５０１が設けられている。配管５１は、第一配管５１１と第二配管５１２とを含む。第一配管５１１および第二配管５１２は、容器本体５０の底部から容器本体５０の内部を頂部側に向けて延びる。第一配管５１１は、一端が第一圧縮部４１の圧縮室４１２に接続されており、他端が容器本体５０の内部で開口している。また、第一配管５１１は、後述する支持部材６０により支持される。第二配管５１２は、圧縮機本体４の第二圧縮部４２に流体を供給するための配管である。第二配管５１２は、一端が第二圧縮部４２の圧縮室４２２に接続されており、他端が容器本体５０の内部で開口している。また、第二配管５１２は、後述する支持部材６０により支持される。 The container body 50 has a substantially cylindrical shape whose top and bottom are sealed. The container body 50 is connected to the housing 2 via a connecting member (not shown). The container body 50 is provided with an inflow pipe 501 at the top. The pipe 51 includes a first pipe 511 and a second pipe 512. The first pipe 511 and the second pipe 512 extend from the bottom of the container main body 50 toward the top of the inside of the container main body 50. One end of the first pipe 511 is connected to the compression chamber 412 of the first compression unit 41, and the other end is opened inside the container body 50. The first pipe 511 is supported by a support member 60 described later. The second pipe 512 is a pipe for supplying fluid to the second compression section 42 of the compressor body 4. One end of the second pipe 512 is connected to the compression chamber 422 of the second compression section 42, and the other end is opened inside the container body 50. The second pipe 512 is supported by a support member 60 described later.
　上述のように構成された空調用圧縮機１は、外部要素（例えば蒸発器。図示せず。）を経た冷媒ガスがアキュムレータ５の容器本体５０内に流入管５０１から供給される。冷媒ガスは、さらに、第一配管５１１を介して圧縮機本体４の第一圧縮部４１に供給され、第二配管５１２を介して圧縮機本体４の第二圧縮部４２に供給される。圧縮機本体４は、駆動部３に電源が供給されて回転軸３３が回転することで、各ロータ４１１、４２１がクランク３３１、３３２により圧縮室４１２、４２２内を偏心回転し、圧縮室４１２、４２２内の冷媒ガスを圧縮する。圧縮室４１２、４２２にて圧縮された冷媒ガスは、吐出管２１から筐体２の外部に吐出され、外部要素に供給される。 In the air-conditioning compressor 1 configured as described above, refrigerant gas having passed through an external element (for example, an evaporator, not shown) is supplied from the inflow pipe 501 into the container body 50 of the accumulator 5. The refrigerant gas is further supplied to the first compression part 41 of the compressor body 4 via the first pipe 511 and is supplied to the second compression part 42 of the compressor body 4 via the second pipe 512. In the compressor body 4, the power is supplied to the drive unit 3 and the rotary shaft 33 rotates, whereby the rotors 411 and 421 rotate eccentrically in the compression chambers 412 and 422 by the cranks 331 and 332, respectively. The refrigerant gas in 422 is compressed. The refrigerant gas compressed in the compression chambers 412 and 422 is discharged from the discharge pipe 21 to the outside of the housing 2 and supplied to the external element.
　また、各圧縮室４１２、４２２内には、上述したように、潤滑油Ｌが供給される。各圧縮室４１２、４２２に供給された潤滑油Ｌの一部は、圧縮された冷媒ガスに含まれた状態で外部要素に供給される。アキュムレータ５は、容器本体５０の上部に設けられた網状のフィルタ５３により、外部要素を経た冷媒ガスから潤滑油Ｌや塵を気液分離する。アキュムレータ５は、気液分離した冷媒ガスを圧縮室４１２、４２２に供給する一方、気液分離した潤滑油Ｌを容器本体５０の底部に溜める。なお、アキュムレータ５は、第一配管５１１に油戻孔５１１ａ、第二配管５１２に油戻孔５１２ａが形成されており、容器本体５０の底部に溜まった潤滑油Ｌを圧縮室４１２、４２２に戻すように構成されている。 Further, as described above, the lubricating oil L is supplied into the compression chambers 412 and 422. A part of the lubricating oil L supplied to the compression chambers 412 and 422 is supplied to the external element in a state of being contained in the compressed refrigerant gas. The accumulator 5 gas-liquid-separates the lubricating oil L and dust from the refrigerant gas that has passed through the external element by means of a net-like filter 53 provided at the upper part of the container body 50. The accumulator 5 supplies the gas-liquid separated refrigerant gas to the compression chambers 412, 422, while storing the gas-liquid separated lubricating oil L at the bottom of the container body 50. The accumulator 5 has an oil return hole 511a in the first pipe 511 and an oil return hole 512a in the second pipe 512, and returns the lubricating oil L collected at the bottom of the container body 50 to the compression chambers 412 and 422. It is configured as follows.
　次に、本実施形態にかかるアキュムレータ５が備える支持部材６０について、図１および図２を参照しながら詳細に説明する。図２は、支持部材を示す横断面図である。支持部材６０は、図１に示すように、底部６１と、壁部６２と、支持孔６３と、貫通孔６４（図２参照）とを有する。底部６１は、図２に示すように円形状に形成される。壁部６２は、底部６１の外縁６１ａから垂直に立ち上がる。すなわち、支持部材６０は、底部６１と壁部６２とにより椀状に形成されている。支持部材６０は、例えば溶接によって、壁部６２および外縁６１ａが容器本体５０の内壁に固定される。なお、支持部材６０の容器本体５０内の高さ方向の位置は、第一配管５１１および第二配管５１２を適切に支持することができれば、いかなる位置であってもよいが、容器本体５０が上下方向のいずれかの位置で複数に分割されている場合、その接合部に設けられることが好ましい。 Next, the support member 60 included in the accumulator 5 according to the present embodiment will be described in detail with reference to FIGS. 1 and 2. FIG. 2 is a cross-sectional view showing the support member. As shown in FIG. 1, the support member 60 includes a bottom portion 61, a wall portion 62, a support hole 63, and a through hole 64 (see FIG. 2). The bottom 61 is formed in a circular shape as shown in FIG. The wall 62 rises vertically from the outer edge 61 a of the bottom 61. That is, the support member 60 is formed in a bowl shape by the bottom portion 61 and the wall portion 62. As for the support member 60, the wall part 62 and the outer edge 61a are fixed to the inner wall of the container main body 50 by welding, for example. The position of the support member 60 in the height direction in the container main body 50 may be any position as long as the first pipe 511 and the second pipe 512 can be appropriately supported. When it is divided into a plurality of parts at any position in the direction, it is preferably provided at the joint.
　支持孔６３は、図１および図２に示すように、底部６１に形成された貫通孔である。支持孔６３は、第一支持孔６３１、第二支持孔６３２を含む。第一支持孔６３１および第二支持孔６３２は、互いに間隔を空けて底部６１に形成される。第一支持孔６３１は、その内径が第一配管５１１の外径よりも若干大きく形成されている。第一支持孔６３１は、図１に示すように、第一配管５１１が挿入され、第一配管５１１を容器本体５０内で支持する。第二支持孔６３２は、その内径が第二配管５１２の外径よりも若干大きく形成されている。第二支持孔６３２は、図１に示すように、第二配管５１２が挿入され、第二配管５１２を容器本体５０内で支持する。このように、支持部材６０により第一配管５１１および第二配管５１２を支持することで、第一配管５１１および第二配管５１２が容器本体５０内で振動し、互いに接触することで騒音を発生させることが抑制される。 The support hole 63 is a through hole formed in the bottom 61 as shown in FIGS. 1 and 2. The support hole 63 includes a first support hole 631 and a second support hole 632. The first support hole 631 and the second support hole 632 are formed in the bottom portion 61 with a space therebetween. The inner diameter of the first support hole 631 is slightly larger than the outer diameter of the first pipe 511. As shown in FIG. 1, the first pipe 511 is inserted into the first support hole 631 and supports the first pipe 511 in the container body 50. The inner diameter of the second support hole 632 is slightly larger than the outer diameter of the second pipe 512. As shown in FIG. 1, the second support hole 632 is inserted with the second pipe 512 and supports the second pipe 512 in the container body 50. In this way, by supporting the first pipe 511 and the second pipe 512 by the support member 60, the first pipe 511 and the second pipe 512 vibrate within the container body 50 and generate noise by contacting each other. It is suppressed.
　貫通孔６４は、図２に示すように、底部６１の第一支持孔６３１および第二支持孔６３２とは異なる位置に複数形成される。複数の貫通孔６４は、容器本体５０内の冷媒ガスや潤滑油Ｌ等を流通させるために設けられる孔部であり、アキュムレータ５の容積が支持部材６０によって減少することを防止している。本実施形態において、複数の貫通孔６４は、支持部材６０の中心（底部６１の中心）６０ａを基準として対称となる位置に配置されている。 As shown in FIG. 2, a plurality of through holes 64 are formed at positions different from the first support hole 631 and the second support hole 632 of the bottom 61. The plurality of through holes 64 are holes provided for circulating the refrigerant gas, the lubricating oil L, and the like in the container main body 50, and prevent the volume of the accumulator 5 from being reduced by the support member 60. In the present embodiment, the plurality of through holes 64 are disposed at positions that are symmetrical with respect to the center 60a of the support member 60 (the center of the bottom 61).
　ここで、本実施形態にかかる空調用圧縮機１のように、アキュムレータ５が圧縮機本体４に隣接して（筐体２に隣接して）設けられる場合、アキュムレータ５には、圧縮機本体４を駆動する駆動部３の磁気に起因した加振力や、圧縮機本体４の脈動に起因した加振力が、第一配管５１１および第二配管５１２、筐体２と容器本体５０とを連結する図示しない連結部材を介して作用する。特に、圧縮機本体４の脈動による加振力がアキュムレータ５内の配管を振動させることにより、支持部材６０を介してアキュムレータ５に振動が伝達され、騒音発生の要因となるおそれがある。 Here, when the accumulator 5 is provided adjacent to the compressor main body 4 (adjacent to the housing 2) as in the air conditioning compressor 1 according to the present embodiment, the accumulator 5 includes the compressor main body 4. The first piping 511 and the second piping 512, the casing 2 and the container main body 50 are connected by the excitation force caused by the magnetism of the drive unit 3 that drives the motor and the vibration force caused by the pulsation of the compressor body 4. It acts via a connecting member (not shown). In particular, the exciting force caused by the pulsation of the compressor body 4 vibrates the piping in the accumulator 5, so that vibration is transmitted to the accumulator 5 through the support member 60, which may cause noise generation.
　そこで、本実施形態において、支持部材６０に形成される第一支持孔６３１の中心６３１ａおよび第二支持孔６３２の中心６３２ａは、図２に示すように、支持部材６０の中心６０ａを通る中心線Ａ１に対してずれている。中心線Ａ１は、圧縮機本体４の作動で生じる脈動によって、第一配管５１１および第二配管５１２へと伝達される加振力のうち、図２において実線矢印で例示する最も支配的な加振力の方向Ｄに沿って中心６０ａを通る直線である。「中心線Ａ１に対してずれている」とは、第一支持孔６３１の中心６３１ａおよび第二支持孔６３２の中心６３２ａが、中心線Ａ１とは一致しない位置（中心線Ａ１から離れた位置）に配置されることを意味する。これにより、圧縮機本体４の脈動による最も支配的な加振力が方向Ｄに沿って第一配管５１１および第二配管５１２に作用したとき、第一配管５１１および第二配管５１２から支持部材６０へと伝達される最も支配的な加振力の一部が、中心６０ａを基準に支持部材６０をひねる方向に分散される。その結果、第一配管５１１および第二配管５１２から支持部材６０の外縁６１ａを介して、アキュムレータ５の容器本体５０へと伝達される加振力が低減され、容器本体５０の振動が抑制されるため、空調用圧縮機１での騒音発生が抑制される。 Therefore, in the present embodiment, the center 631a of the first support hole 631 and the center 632a of the second support hole 632 formed in the support member 60 are center lines passing through the center 60a of the support member 60 as shown in FIG. It is deviated from A1. The center line A1 is the most dominant excitation illustrated by solid line arrows in FIG. 2 among the excitation forces transmitted to the first pipe 511 and the second pipe 512 by the pulsation generated by the operation of the compressor body 4. A straight line passing through the center 60a along the direction D of force. “Displaced from the center line A1” means a position where the center 631a of the first support hole 631 and the center 632a of the second support hole 632 do not coincide with the center line A1 (position away from the center line A1). Means to be placed in. As a result, when the most dominant excitation force due to the pulsation of the compressor body 4 acts on the first pipe 511 and the second pipe 512 along the direction D, the support member 60 from the first pipe 511 and the second pipe 512. A part of the most dominant excitation force transmitted to is distributed in the direction of twisting the support member 60 with respect to the center 60a. As a result, the excitation force transmitted from the first pipe 511 and the second pipe 512 to the container body 50 of the accumulator 5 through the outer edge 61a of the support member 60 is reduced, and the vibration of the container body 50 is suppressed. Therefore, noise generation in the air conditioning compressor 1 is suppressed.
　以上説明したように、本実施形態にかかるアキュムレータ５および空調用圧縮機１によれば、空調用圧縮機１の圧縮機本体４に隣接して設けられるアキュムレータ５で発生する振動を抑制し、空調用圧縮機１で発生する騒音を低減させることができる。 As described above, according to the accumulator 5 and the air conditioning compressor 1 according to the present embodiment, vibration generated in the accumulator 5 provided adjacent to the compressor body 4 of the air conditioning compressor 1 is suppressed, and the air conditioning is performed. Noise generated in the compressor 1 can be reduced.
　また、配管５１（第一配管５１１、第二配管５１２）は、圧縮機本体４の圧縮室４１２、４２２の数に対応して容器本体５０内に複数配置され、支持孔６３（第一支持孔６３１、第二支持孔６３２）は、配管５１に対応して複数設けられ、すべての支持孔６３の中心（第一支持孔６３１の中心６３１ａ、第二支持孔６３２の中心６３２ａ）が、中心線Ａ１に対してずれている。 A plurality of pipes 51 (first pipe 511, second pipe 512) are arranged in the container body 50 corresponding to the number of compression chambers 412, 422 of the compressor body 4, and support holes 63 (first support holes). 631, second support holes 632) are provided corresponding to the pipe 51, and the centers of all the support holes 63 (the center 631a of the first support hole 631 and the center 632a of the second support hole 632) are center lines. It is deviated from A1.
　この構成により、配管５１が複数ある場合にも、各配管５１（第一配管５１１、第二配管５１２）から支持部材６０を介してアキュムレータ５の容器本体５０へと伝達される加振力を低減させ、アキュムレータ５で発生する振動を抑制することができる。 With this configuration, even when there are a plurality of pipes 51, the excitation force transmitted from each pipe 51 (first pipe 511, second pipe 512) to the container body 50 of the accumulator 5 via the support member 60 is reduced. The vibration generated in the accumulator 5 can be suppressed.
　図３は、支持部材の変形例を示す横断面図である。図３に示す支持部材６００は、図２に示す支持部材６０の複数の貫通孔６４に代えて、複数の貫通孔６４０を有している。支持部材６００のその他の構成要素は、支持部材６０と同様のため、同一の符号を付し、説明を省略する。 FIG. 3 is a cross-sectional view showing a modification of the support member. The support member 600 shown in FIG. 3 has a plurality of through holes 640 instead of the plurality of through holes 64 of the support member 60 shown in FIG. The other components of the support member 600 are the same as those of the support member 60, and thus the same reference numerals are given and description thereof is omitted.
　複数の貫通孔６４０は、本実施形態では、一対の大径孔６４１、６４２と、一対の小径孔６４３、６４４とを含む。一対の大径孔６４１、６４２は、中心６０ａを図中上下方向に挟んで配置される。一対の小径孔６４３、６４４は、中心６０ａを図中左右方向に挟んで配置される。なお、図２および図３に示した貫通孔６４、６４０の形状および位置は、例示であり、第一支持孔６３１および第二支持孔６３２と異なる位置に形成されるものであれば、アキュムレータ５に要求される性能に応じた種々の形状、位置を採用することができる。 In the present embodiment, the plurality of through holes 640 include a pair of large diameter holes 641 and 642 and a pair of small diameter holes 643 and 644. The pair of large- diameter holes 641 and 642 are arranged with the center 60a sandwiched in the vertical direction in the drawing. The pair of small diameter holes 643 and 644 are arranged with the center 60a sandwiched in the left-right direction in the drawing. The shapes and positions of the through holes 64 and 640 shown in FIGS. 2 and 3 are examples, and the accumulator 5 may be used as long as it is formed at a position different from the first support hole 631 and the second support hole 632. Various shapes and positions can be adopted according to the performance required for the.
　これにより、支持部材６００の隣り合う貫通孔６４０同士の間には、外縁６１ａから延びる肉部６５が延在することになる。肉部６５は、図示するように、肉部６５１、６５２、６５３、６５４を含む。肉部６５１は、大径孔６４１と小径孔６４３との間を延びる部分である。肉部６５２は、大径孔６４１と小径孔６４４との間を延びる部分である。肉部６５３は、大径孔６４２と小径孔６４３との間を延びる部分である。肉部６５４は、大径孔６４２と小径孔６４４との間を延びる部分である。 Thus, the meat portion 65 extending from the outer edge 61a extends between the adjacent through holes 640 of the support member 600. The meat portion 65 includes meat portions 651, 652, 653, 654 as illustrated. The meat portion 651 is a portion extending between the large diameter hole 641 and the small diameter hole 643. The meat portion 652 is a portion extending between the large diameter hole 641 and the small diameter hole 644. The meat portion 653 is a portion extending between the large diameter hole 642 and the small diameter hole 643. The meat portion 654 is a portion extending between the large diameter hole 642 and the small diameter hole 644.
　ここで、図３において、各二点鎖線は、肉部６５１の延在方向に沿った中心線Ｂ１、肉部６５２の延在方向に沿った中心線Ｂ２、肉部６５３の延在方向に沿った中心線Ｂ３、肉部６５４の延在方向に沿った中心線Ｂ４を示す。「延在方向」とは、肉部６５１、６５２、６５３、６５４の外縁６１ａから支持部材６００の中心６０ａ側に向けて延びる方向である。支持部材６００において、第一支持孔６３１の中心６３１ａおよび第二支持孔６３２の中心６３２ａは、図示するように、各中心線Ｂ１、Ｂ２、Ｂ３、Ｂ４に対してずれている。「中心線Ｂ１、Ｂ２、Ｂ３、Ｂ４に対してずれている」とは、第一支持孔６３１の中心６３１ａおよび第二支持孔６３２の中心６３２ａが、中心線Ｂ１、Ｂ２、Ｂ３、Ｂ４とは一致しない位置（中心線Ｂ１、Ｂ２、Ｂ３、Ｂ４から離れた位置）に配置されることを意味する。 Here, in FIG. 3, each two-dot chain line is along the center line B <b> 1 along the extending direction of the meat part 651, the center line B <b> 2 along the extending direction of the meat part 652, and the extending direction of the meat part 653. A center line B3 along the extending direction of the flesh portion 654 is shown. The “extending direction” is a direction extending from the outer edge 61 a of the meat portions 651, 652, 653, 654 toward the center 60 a side of the support member 600. In the support member 600, the center 631a of the first support hole 631 and the center 632a of the second support hole 632 are deviated from the center lines B1, B2, B3, and B4 as shown in the figure. “The center lines B1, B2, B3, B4 are displaced” means that the center 631a of the first support hole 631 and the center 632a of the second support hole 632 are different from the center lines B1, B2, B3, B4. This means that they are arranged at positions that do not match (positions away from the center lines B1, B2, B3, and B4).
　この構成により、圧縮機本体４から伝達される加振力がいかなる方向であっても、第一配管５１１、第二配管５１２から肉部６５１、６５２、６５３、６５４へと伝わる加振力の一部が、肉部６５１、６５２、６５３、６５４をひねる方向に分散される。その結果、第一配管５１１、第二配管５１２から支持部材６００の肉部６５１、６５２、６５３、６５４を介して、アキュムレータ５の容器本体５０へと伝達される加振力を低減させ、アキュムレータ５で発生する振動を抑制することができる。 With this configuration, the excitation force transmitted from the first pipe 511 and the second pipe 512 to the meat portions 651, 652, 653, and 654 regardless of the direction of the excitation force transmitted from the compressor main body 4. The parts are dispersed in the direction of twisting the meat parts 651, 652, 653, 654. As a result, the excitation force transmitted from the first pipe 511 and the second pipe 512 to the container body 50 of the accumulator 5 through the meat portions 651, 652, 653, 654 of the support member 600 is reduced. Can suppress the vibration generated in
　なお、支持部材６０、６００の形状は、本実施形態に示したものに限られない。例えば、支持部材６０、６００は、容器本体５０へと安定に固定可能でさえあれば、壁部６２を備えなくてもよい。また、支持部材６０、６００に、第一支持孔６３１および第二支持孔６３２の縁部から上下方向の少なくとも何れか一方に突出する円筒状部を設け、円筒状部により第一配管５１１、第二配管５１２の外周を広く支持する構成としてもよい。また、容器本体５０が略円筒形状でない場合、支持部材６０、６００は、容器本体５０の内面形状に応じて、底部６１が円形状以外の形状に形成されてもよい。 Note that the shapes of the support members 60 and 600 are not limited to those shown in the present embodiment. For example, the support members 60 and 600 may not include the wall portion 62 as long as they can be stably fixed to the container body 50. In addition, the support members 60 and 600 are provided with cylindrical portions that protrude from the edge portions of the first support hole 631 and the second support hole 632 in at least one of the vertical directions, and the first pipe 511 and the first pipe are formed by the cylindrical portions. It is good also as a structure which supports the outer periphery of the two piping 512 widely. Moreover, when the container main body 50 is not substantially cylindrical shape, the support members 60 and 600 may have the bottom portion 61 formed in a shape other than the circular shape according to the inner surface shape of the container main body 50.
　本実施形態では、ツインロータリー式の空調用圧縮機１を対象として実施形態にかかるアキュムレータ５の構成について説明したが、実施形態にかかるアキュムレータ５は、例えばシングルロータリー式の空調用圧縮機や、スクロール型の空調用圧縮機等、いかなる空調用圧縮機に適用されてもよい。 In the present embodiment, the configuration of the accumulator 5 according to the embodiment has been described for the twin rotary type air conditioning compressor 1, but the accumulator 5 according to the embodiment may be a single rotary type air conditioning compressor or a scroll, for example. The present invention may be applied to any air-conditioning compressor such as a type air-conditioning compressor.
　例えば、圧縮機本体４が圧縮室を１つのみ備え、アキュムレータ５と圧縮室とを接続する配管５１が１つのみの構成の場合、支持部材６０は、１つの配管５１を支持するための支持孔６３を一つ備えればよい。この場合にも、支持孔６３の中心は、少なくとも図２に示す中心線Ａ１に対してずれていればよく、図３に示す中心線Ｂ１、Ｂ２、Ｂ３、Ｂ４に対してずれていることが、より好ましい。 For example, when the compressor main body 4 has only one compression chamber and has only one piping 51 that connects the accumulator 5 and the compression chamber, the support member 60 is a support for supporting one piping 51. One hole 63 may be provided. Also in this case, it is sufficient that the center of the support hole 63 is deviated from at least the center line A1 shown in FIG. 2, and is deviated from the center lines B1, B2, B3, and B4 shown in FIG. More preferable.
　また、例えば、圧縮機本体４が圧縮室を３つ以上備え、アキュムレータ５と圧縮室とを接続する配管５１が３つ以上の構成の場合、支持部材６０は、複数の配管５１の数に対応した３つ以上の支持孔６３を備えればよい。この場合にも、３つ以上の支持孔６３の中心は、少なくとも図２に示す中心線Ａ１に対してずれていればよく、図３に示す中心線Ｂ１、Ｂ２、Ｂ３、Ｂ４に対してずれていることが、より好ましい。 Further, for example, when the compressor body 4 includes three or more compression chambers and the number of piping 51 connecting the accumulator 5 and the compression chamber is three or more, the support member 60 corresponds to the number of the plurality of pipings 51. It is only necessary to provide three or more support holes 63. Also in this case, the centers of the three or more support holes 63 need only be deviated from the center line A1 shown in FIG. 2, and are deviated from the center lines B1, B2, B3, and B4 shown in FIG. It is more preferable.
　１　空調用圧縮機
　２　筐体
　２１　吐出管
　２２　油溜
　３　駆動部
　３１　固定子
　３２　回転子
　３３　回転軸
　３３１，３３２　クランク
　３３３，３３３ａ，３３３ｂ　油供給通路
　４　圧縮機本体
　４１　第一圧縮部
　４１１，４２１　ロータ
　４１２，４２２　圧縮室
　４２　第二圧縮部
　４３　仕切板
　４４　軸受
　４３１　挿通穴
　５　アキュムレータ
　５０　容器本体
　５０１　流入管
　５１　配管
　５１１ａ，５１２ａ　油戻孔
　５１１　第一配管
　５１２　第二配管
　５３　フィルタ
　６０，６００　支持部材
　６０ａ，６３１ａ，６３２ａ　中心
　６１ａ　外縁
　６１　底部
　６２　壁部
　６３　支持孔
　６４，６４０　貫通孔
　６５　肉部
　６３１　第一支持孔
　６３２　第二支持孔
　６４１，６４２　大径孔
　６４３，６４４　小径孔
　６５１，６５２，６５３，６５４　肉部
　Ａ１，Ｂ１，Ｂ２，Ｂ３，Ｂ４　中心線
　Ｌ　潤滑油 DESCRIPTION OF SYMBOLS 1 Air-conditioning compressor 2 Housing | casing 21 Discharge pipe 22 Oil reservoir 3 Drive part 31 Stator 32 Rotor 33 Rotating shaft 331,332 Crank 333,333a, 333b Oil supply passage 4 Compressor main body 41 First compression part 411,421 Rotor 412, 422 Compression chamber 42 Second compression part 43 Partition plate 44 Bearing 431 Insertion hole 5 Accumulator 50 Container body 501 Inflow pipe 51 Pipe 511a, 512a Oil return hole 511 First pipe 512 Second pipe 53 Filter 60, 600 Support member 60a, 631a, 632a Center 61a Outer edge 61 Bottom 62 Wall 63 Support hole 64,640 Through hole 65 Thick part 631 First support hole 632 Second support hole 641,642 Large diameter hole 643,644 Small diameter hole 651,652,653 , 654 Meat A1, B1, B2, B3, B4 Center line L Jun Oil

Claims (4)

  1. 　空調用圧縮機の圧縮機本体に隣接して設けられ、気液分離させた冷媒ガスを容器本体から配管を介して前記圧縮機本体へと供給するアキュムレータであって、
    　外縁が前記容器本体の内壁に取り付けられ、前記容器本体の内部で前記配管を支持する支持孔を有する支持部材を備え、
    　前記支持孔の中心は、前記圧縮機本体から伝達される最も支配的な加振力の方向に沿って前記支持部材の中心を通る中心線に対してずれている
    　ことを特徴とするアキュムレータ。     An accumulator that is provided adjacent to a compressor main body of an air conditioning compressor and supplies refrigerant gas separated into gas and liquid from the container main body to the compressor main body via a pipe,
    An outer edge is attached to the inner wall of the container body, and includes a support member having a support hole for supporting the pipe inside the container body;
    The accumulator is characterized in that the center of the support hole is deviated from a center line passing through the center of the support member along a direction of the most dominant excitation force transmitted from the compressor body.
  2. 　前記支持部材は、前記支持孔とは異なる位置に設けられた複数の貫通孔を有し、
    　前記支持部材の隣り合う前記貫通孔同士の間には、前記外縁から延びる肉部が延在し、
    　前記支持孔の中心は、前記肉部の前記外縁から前記支持部材の前記中心側に向けて延びる延在方向に沿った中心線に対してずれている
    　ことを特徴とする請求項１に記載のアキュムレータ。     The support member has a plurality of through holes provided at positions different from the support holes,
    Between the adjacent through holes of the support member, a meat portion extending from the outer edge extends,
    The center of the support hole is shifted with respect to a center line along an extending direction extending from the outer edge of the meat portion toward the center side of the support member. accumulator.
  3. 　前記配管は、前記圧縮機本体の圧縮室の数に対応して前記容器本体内に複数配置され、
    　前記支持孔は、複数配置された前記配管に対応して複数設けられ、
    　すべての前記支持孔の中心が、前記中心線に対してずれている
    　ことを特徴とする請求項１または請求項２に記載のアキュムレータ。     A plurality of the pipes are arranged in the container body corresponding to the number of compression chambers of the compressor body,
    A plurality of the support holes are provided corresponding to the plurality of pipes arranged,
    The accumulator according to claim 1 or 2, wherein the centers of all the support holes are deviated from the center line.
  4. 　請求項１から請求項３のいずれか一項に記載のアキュムレータと、前記配管を介して前記アキュムレータから冷媒ガスが供給される圧縮機本体とを備えることを特徴とする空調用圧縮機。 An air-conditioning compressor comprising: the accumulator according to any one of claims 1 to 3; and a compressor body to which a refrigerant gas is supplied from the accumulator through the pipe.
PCT/JP2018/044426 2018-02-13 2018-12-03 Accumulator, and compressor for air conditioning WO2019159497A1 (en)

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EP18906496.7A EP3754270B1 (en) 2018-02-13 2018-12-03 Accumulator, and compressor for air conditioning
ES18906496T ES2969941T3 (en) 2018-02-13 2018-12-03 Accumulator and compressor for air conditioner.
CN201890001531.4U CN212778059U (en) 2018-02-13 2018-12-03 Energy accumulator and compressor for air conditioner
AU2020101791A AU2020101791A4 (en) 2018-02-13 2020-08-13 Accumulator and compressor for air conditioning

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JP2018023105A JP2019138576A (en) 2018-02-13 2018-02-13 Accumulator, and compressor for air conditioning
JP2018-023105 2018-02-13

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CN111794971A (en) * 2020-07-07 2020-10-20 珠海格力节能环保制冷技术研究中心有限公司 Liquid storage device and compressor

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JP2019138576A (en) 2019-08-22
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ES2969941T3 (en) 2024-05-23
CN212778059U (en) 2021-03-23
EP3754270C0 (en) 2024-01-24
EP3754270B1 (en) 2024-01-24

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