WO2012127753A1 - Dispositif de compresseur à spirale, et procédé de montage de celui-ci - Google Patents

Dispositif de compresseur à spirale, et procédé de montage de celui-ci Download PDF

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Publication number
WO2012127753A1
WO2012127753A1 PCT/JP2011/079467 JP2011079467W WO2012127753A1 WO 2012127753 A1 WO2012127753 A1 WO 2012127753A1 JP 2011079467 W JP2011079467 W JP 2011079467W WO 2012127753 A1 WO2012127753 A1 WO 2012127753A1
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WO
WIPO (PCT)
Prior art keywords
scroll
compression mechanism
rotor
swing
fixed
Prior art date
Application number
PCT/JP2011/079467
Other languages
English (en)
Japanese (ja)
Inventor
哲広 林
敏 飯塚
健二 相田
努 昆
保則 清川
和▲禧▼ 杉本
好彦 長瀬
克城 阿久沢
芳秋 長沢
Original Assignee
三洋電機株式会社
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
Priority claimed from JP2011065607A external-priority patent/JP2012202252A/ja
Priority claimed from JP2011066920A external-priority patent/JP2012202277A/ja
Priority claimed from JP2011066921A external-priority patent/JP2012202278A/ja
Priority claimed from JP2011067051A external-priority patent/JP5824668B2/ja
Priority claimed from JP2011069123A external-priority patent/JP2012202349A/ja
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to US14/007,273 priority Critical patent/US20140161649A1/en
Priority to CN201180069287.8A priority patent/CN103429898B/zh
Publication of WO2012127753A1 publication Critical patent/WO2012127753A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • 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
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • 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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/603—Centering; Aligning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/12—Magnetic properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y10T29/4924—Scroll or peristaltic type

Definitions

  • the present invention relates to a scroll compression device that performs compression by meshing a fixed scroll and an orbiting scroll, and an assembly method for the scroll compression device.
  • a compression mechanism including a fixed scroll having a spiral wrap meshing with each other and a swing scroll is provided in a sealed casing, and the compression mechanism is driven by a drive motor to swing with respect to the fixed scroll.
  • a scroll compression apparatus that performs compression by causing a scroll to move circularly without rotating is known.
  • the assembly accuracy in a state where the fixed scroll and the orbiting scroll are engaged with each other greatly affects the compression performance and durability. Therefore, in order to reduce and equalize the clearance between the fixed scroll and the oscillating scroll lap, a method of centering the fixed scroll while the oscillating scroll is oscillating with respect to the fixed scroll is known. (For example, refer to Patent Document 1).
  • the rotor of the drive motor is magnetized by applying a current to the stator winding of the stator and being magnetized by winding magnetization, or magnetized by external magnetization using an external magnetizing device.
  • compressed gas is supplied from the discharge side of the compression mechanism and the swinging scroll is swung by the pressure of the compressed gas. If the rotor is magnetized, the magnetic force There is a problem that the swinging scroll cannot be swung easily and the work efficiency of centering the fixed scroll is lowered.
  • the present invention provides a scroll compressor that can solve the above-described problems of the prior art and can easily perform rotor magnetization and centering of a fixed scroll, and an assembly method for the scroll compressor. For the purpose.
  • the present invention provides a scroll compression mechanism having a fixed scroll and an orbiting scroll inside a casing and compressing refrigerant, and the scroll compression mechanism and the drive shaft connected to each other.
  • An assembly method in a scroll compressor including an inverter-controlled DC motor that drives a mechanism, wherein the scroll compressor mechanism is supported on the casing by a main frame, magnetizes the rotor of the DC motor, and After the rotor is magnetized, the rocking scroll is swung by causing compressed gas capable of swinging the rocking scroll to overcome the magnetized magnetic force to act on the discharge side of the scroll compression mechanism. After centering the swing scroll and the fixed scroll, the fixed scroll is moved to the main frame. It is positioned over arm, characterized in that.
  • compressed gas capable of swinging the swing scroll by overcoming the magnetic force of the magnetized rotor is applied to the discharge side of the scroll compression mechanism to swing the swing scroll, and the fixed scroll core. Since the fixed scroll can be positioned on the main frame, the orbiting scroll can be swung with the pressure of the compressed gas, even when the rotor is magnetized, just as when the rotor is not magnetized. Thus, the fixed scroll and the swing scroll can be assembled.
  • the rotor stops the drive shaft by rotating it by a predetermined angle, applies a voltage to the winding of the DC motor, stops the drive shaft by rotating the drive shaft by a predetermined angle, and stops the voltage. It is good also as a structure which magnetizes by repeating the operation to apply.
  • the rotor may be magnetized before being assembled to the DC motor.
  • the present invention includes a scroll compression mechanism that has a fixed scroll and an orbiting scroll inside the casing and compresses the refrigerant, and is connected to the scroll compression mechanism by a drive shaft.
  • An assembly method in a scroll compression apparatus including an inverter-controlled DC motor for driving a scroll compression mechanism, wherein the scroll compression mechanism is supported by the casing by a main frame, and compressed gas is discharged to a discharge side of the scroll compression mechanism.
  • the fixed scroll is positioned on the main frame, and the drive shaft is moved at a predetermined angle.
  • the compressed scroll is operated on the discharge side of the scroll compression mechanism to swing the swing scroll, the fixed scroll is centered, the fixed scroll is positioned on the main frame, and then the rotor is magnetized. Therefore, when centering the fixed scroll, the swinging motion of the swinging scroll can be performed without being affected by the magnetic force of the rotor, and the swinging scroll is swung by the pressure of the compressed gas.
  • a fixed scroll can be centered.
  • the present invention includes a scroll compression mechanism that has a fixed scroll and an orbiting scroll inside the casing and compresses the refrigerant, and is connected to the scroll compression mechanism by a drive shaft.
  • a scroll compression apparatus including an inverter-controlled DC motor that drives a scroll compression mechanism
  • the scroll compression mechanism is supported by the casing by a main frame, magnetizes the rotor of the DC motor, and attaches the rotor.
  • the oscillating scroll is oscillated by causing the compressed gas capable of oscillating the oscillating scroll to overcome the magnetized magnetic force to act on the discharge side of the scroll compression mechanism.
  • the fixed scroll the fixed scroll is positioned on the main frame. Rice, characterized in that assembled.
  • the present invention includes a scroll compression mechanism that has a fixed scroll and an orbiting scroll inside the casing and compresses the refrigerant, and is connected to the scroll compression mechanism by a drive shaft.
  • a scroll compression apparatus comprising an inverter-controlled DC motor that drives the scroll compression mechanism
  • the scroll compression mechanism is supported by the casing by a main frame, and a compressed gas is applied to the discharge side of the scroll compression mechanism,
  • the fixed scroll is positioned on the main frame, and the drive shaft is rotated by a predetermined angle to stop.
  • a voltage is applied to the winding of the DC motor, and the drive shaft is rotated a predetermined angle again. Stop by, characterized in that assembled by repeating the operation for applying the voltage magnetizing the rotor.
  • the present invention even if the rotor is magnetized, compressed gas capable of swinging the swing scroll by overcoming the magnetic force of the magnetized rotor is applied to the discharge side of the scroll compression mechanism so that the swing scroll. Oscillates to center the fixed scroll and positions the fixed scroll on the main frame. Even if the rotor is magnetized, it is oscillated by the pressure of the compressed gas, as in the case where the rotor is not magnetized. The scroll can be swung so that the fixed scroll can be centered. If the rotor is magnetized or the fixed scroll is centered first, the rotor is magnetized and the fixed scroll is centered. It can be performed.
  • FIG. 1 is a cross-sectional view of a scroll compressor according to an embodiment to which the present invention is applied.
  • FIG. 2 is a cross-sectional view of the scroll compression apparatus showing a state in which the fixed scroll is centered.
  • reference numeral 1 denotes a scroll compressor having an internal high pressure, and this compressor 1 is connected to a refrigerant circuit (not shown) that performs a refrigeration cycle operation by circulating the refrigerant, and compresses the refrigerant.
  • the compressor 1 has a vertically long cylindrical hermetic dome-shaped casing 3.
  • the casing 3 includes a casing main body 5 that is a cylindrical body having an axis extending in the vertical direction, and a bowl-shaped upper cap having a convex surface that is welded and integrally joined to the upper end of the casing body 5 7 and a flange-like lower cap 9 which is welded and integrally joined to the lower end portion of the casing body 5 and has a convex surface protruding downward, and is configured as a pressure vessel.
  • a terminal cover 52 is provided on the outer peripheral surface of the casing 3, and a power supply terminal 53 that supplies power to a stator 37 described later is provided inside the terminal cover 52.
  • a scroll compression mechanism 11 that compresses the refrigerant and a drive motor 13 that is disposed below the scroll compression mechanism 11.
  • the scroll compression mechanism 11 and the drive motor 13 are connected to each other by a drive shaft 15 disposed so as to extend in the vertical direction in the casing 3.
  • a gap space 17 is formed between the scroll compression mechanism 11 and the drive motor 13.
  • a main frame 21 is accommodated in the upper part of the casing 3, and a radial bearing portion 28 and a boss accommodating portion 26 are formed in the center of the main frame 21.
  • the radial bearing portion 28 is for supporting the tip (upper end) side of the drive shaft 15 and is formed to project downward from the center of one surface (lower surface) of the main frame 21.
  • the boss accommodating portion 26 is for accommodating a boss 25C of the swing scroll 25 described later, and is formed by recessing the center of the other surface (upper surface) of the main frame 21 downward.
  • An eccentric shaft portion 15 ⁇ / b> A is formed at the tip (upper end) of the drive shaft 15.
  • the eccentric shaft portion 15 ⁇ / b> A is provided so that the center thereof is eccentric from the axis of the drive shaft 15, and is inserted into the boss 25 ⁇ / b> C via the turning bearing 24 so as to be capable of turning.
  • the scroll compression mechanism 11 is composed of a fixed scroll 23 and a swing scroll 25.
  • the fixed scroll 23 is disposed in close contact with the upper surface of the main frame 21.
  • the outer peripheral edge of the main frame 21 is attached to the inner surface of the casing body 5 of the casing 3, and the fixed scroll 23 is fastened to the main frame 21 with screws 34.
  • the swing scroll 25 meshes with the fixed scroll 23 and is disposed in the swing space 12 formed between the fixed scroll 23 and the main frame 21.
  • the casing 3 is partitioned into a high-pressure space 27 below the main frame 21 and a discharge space 29 above the main frame 21.
  • the spaces 27 and 29 communicate with each other through vertical grooves 71 formed to extend vertically on the outer periphery of the main frame 21 and the fixed scroll 23.
  • the upper cap 7 of the casing 3 has a suction pipe 31 that guides the refrigerant in the refrigerant circuit to the scroll compression mechanism 11, and the casing body 5 has a discharge pipe 33 that discharges the refrigerant in the casing 3 to the outside of the casing 3. It is fixed in a penetrating manner.
  • the suction pipe 31 extends vertically in the discharge space 29, and an inner end thereof passes through the fixed scroll 23 of the scroll compression mechanism 11 and communicates with the compression chamber 35, and the refrigerant is introduced into the compression chamber 35 by the suction pipe 31. Is inhaled.
  • the drive motor (DC drive motor) 13 is a DC (Direct Current) motor that is driven by receiving an input from a direct current power source, and includes an annular stator 37 and a rotor 39 that is configured to be rotatable inside the stator 37. Is provided.
  • the drive motor 13 receives a constant input voltage, and its rotational torque is controlled by a PWM (Pulse Width Modulation) inverter that controls the duty ratio of the pulse wave, that is, the period for outputting the pulse wave and the pulse width when the pulse wave is output.
  • PWM Pulse Width Modulation
  • the stator 37 includes a stator core 37 ⁇ / b> A and the stator coil 18.
  • the stator core 37A is formed by stacking thin iron plates, and has a plurality of grooves inside although not shown.
  • the stator coil 18 is formed by winding a plurality of phases of stator windings, and is fitted into a groove formed inside the stator core 37A, and is provided above and below the stator core 37A.
  • the stator coil 18 is accommodated in the insulator 19.
  • the stator coil 18 is connected to the power supply terminal 53 via a lead wire (not shown).
  • the rotor 39 is formed of a ferrite magnet or a neodymium magnet and is magnetized by magnetization.
  • winding magnetization is performed by passing a current through a stator winding forming the stator coil 18 of the stator 37 and magnetizing the rotor 39.
  • There is external magnetization that is inserted into the stator 37 after being magnetized using an external magnetizing device.
  • a holder (pin holder) 58 used for positioning the rotor 39 when the rotor 39 is magnetized by winding is press-fitted inside the drive shaft 15.
  • the stator 37 is supported on the inner wall surface of the casing 3 by an annular spacer ring 38.
  • the spacer ring 38 is fixed to the inner wall surface of the casing 3 by shrink fitting, and the stator 37 is fixed to the inner wall surface of the spacer ring 38 by shrink fitting.
  • the upper end surface of the spacer ring 38 is provided below the upper end surface of the stator 37.
  • the bearing plate 8 that rotatably fits and supports the lower end portion of the drive shaft 15.
  • the bearing plate 8 is formed in a cylindrical shape and a boss portion 8 ⁇ / b> A into which the drive shaft 15 is fitted.
  • the boss portion 8 ⁇ / b> A is provided around the boss portion 8 ⁇ / b> A at substantially equal intervals and extends in four directions.
  • an arm portion 8B to be fixed. That is, the drive shaft 15 is supported on the casing 3 by the bearing plate 8.
  • the bearing plate 8 is formed between the arm portions 8B and has an opening 8E that communicates the upper and lower spaces.
  • the baffle plate 14 is made of, for example, a thin plate-shaped punching metal having a large number of pores 14D.
  • An oil supply passage 41 as a part of the high pressure oil supply means is formed in the drive shaft 15, and this oil supply passage 41 extends vertically inside the drive shaft 15 and enters an oil chamber 43 on the back surface of the swing scroll 25. Communicate.
  • the oil supply path 41 is connected to an oil pickup 45 provided at the lower end of the drive shaft 15.
  • a lateral hole 57 extending in the radial direction of the drive shaft 15 and penetrating the oil supply passage 41 is provided on the back side of the oil pickup 45.
  • the holder 58 described above is press-fitted into the horizontal hole 57.
  • the oil pickup 45 is press-fitted into the drive shaft 15 after the rotor 39 is magnetized.
  • the oil pickup 45 includes a suction port 42 provided at the lower end and a paddle 44 formed above the suction port 42.
  • the lower end of the oil pickup 45 is immersed in the lubricating oil stored in the oil sump 40, and the suction port 42 of the oil supply path 41 is opened in the lubricating oil.
  • the lubricating oil stored in the oil sump 40 enters the oil supply passage 41 from the suction port 42 of the oil pickup 45 and is pumped upward along the paddle 44 of the oil supply passage 41.
  • the pumped lubricating oil is supplied to the sliding portions of the scroll compression mechanism 11 such as the radial bearing 28 and the orbiting bearing 24 through the oil supply passage 41.
  • the lubricating oil is supplied to the oil chamber 43 on the back of the orbiting scroll 25 through the oil supply passage 41, and is supplied from the oil chamber 43 to the compression chamber 35 through the communication path 51 provided in the orbiting scroll 25.
  • the main frame 21 is formed with a return oil passage 47 that penetrates the main frame 21 in the radial direction from the boss accommodating portion 26 and opens into the vertical groove 71.
  • a return oil passage 47 that penetrates the main frame 21 in the radial direction from the boss accommodating portion 26 and opens into the vertical groove 71.
  • An oil collector 46 is provided below the return oil passage 47, and the oil collector 46 extends to the vicinity of the upper end of the spacer ring 38.
  • a plurality of notches 54 are formed on the outer peripheral surface of the stator 37 so as to extend up and down the stator 37.
  • Lubricating oil returned from the oil supply passage 41 through the return oil passage 47 and the oil collector 46 is returned to the oil sump 40 through the notches 54 and between the arm portions 8B of the bearing plate 8.
  • the discharge pipe 33 is shown by a broken line for convenience of explanation, but the discharge pipe 33 is arranged out of phase with the oil collector 46.
  • the fixed scroll 23 is composed of an end plate 23A and a spiral (involute) wrap 23B formed on the lower surface of the end plate 23A.
  • the orbiting scroll 25 is composed of an end plate 25A and a spiral (involute) wrap 25B formed on the upper surface of the end plate 25A.
  • the wrap 23B of the fixed scroll 23 and the wrap 25B of the swing scroll 25 are meshed with each other, so that a plurality of compression is performed between the fixed scroll 23 and the swing scroll 25 by the both wraps 23B and 25B.
  • a chamber 35 is formed.
  • the orbiting scroll 25 is supported by the fixed scroll 23 via the Oldham ring 61, and a bottomed cylindrical boss 25C projects from the center of the lower surface of the end plate 25A.
  • an eccentric shaft portion 15 ⁇ / b> A is provided at the upper end of the drive shaft 15, and the eccentric shaft portion 15 ⁇ / b> A is rotatably fitted to a boss 25 ⁇ / b> C of the swing scroll 25.
  • the drive shaft 15 is provided with a counterweight portion (upper balancer) 63 below the main frame 21, and a lower balancer 77 is provided below the rotor 39.
  • the drive shaft 15 is dynamically balanced with the orbiting scroll 25, the eccentric shaft portion 15A, and the like by the upper balancer 63 and the lower balancer 77.
  • the rocking scroll 25 is revolved by rotating the drive shaft 15 while balancing the weight by the counter weight portion 63 and the lower balancer 77.
  • the compression chamber 35 is configured to compress the refrigerant sucked from the suction pipe 31 as the volume between the wraps 23B and 25B contracts toward the center.
  • a lower plate of the lower balancer 77 is provided with a rotor 39 and a regulation plate 55 that is caulked together with the lower balancer 77.
  • the restriction plate 55 is used to restrict the rotation of the rotor 39 when the rotor 39 is wound and magnetized.
  • a cup 48 is fixed to the lower side of the main frame 21 with bolts 49 so as to surround the counterweight portion 63.
  • the cup 48 prevents the lubricating oil leaking from the clearance between the main frame 21 and the drive shaft 15 from being scattered to the discharge pipe side due to the rotation of the counterweight part 63.
  • a discharge hole 73 is provided in the central portion of the fixed scroll 23, and the gas refrigerant discharged from the discharge hole 73 is discharged to the discharge space 29 through the discharge valve 75, and the main frame 21 and the fixed scroll 23.
  • the refrigerant flows out into the high-pressure space 27 below the main frame 21 through the vertical grooves 71 provided on the outer circumferences, and the high-pressure refrigerant is discharged out of the casing 3 through the discharge pipe 33 provided in the casing body 5.
  • the scroll compressor 1 When the drive motor 13 is driven, the rotor 39 rotates with respect to the stator 37, and thereby the drive shaft 15 rotates.
  • the swinging scroll 25 of the scroll compression mechanism 11 When the drive shaft 15 rotates, the swinging scroll 25 of the scroll compression mechanism 11 does not rotate with respect to the fixed scroll 23 but only revolves.
  • the low-pressure refrigerant is sucked into the compression chamber 35 from the peripheral side of the compression chamber 35 through the suction pipe 31, and the refrigerant is compressed as the volume of the compression chamber 35 changes.
  • the compressed refrigerant becomes high pressure and is discharged from the compression chamber 35 through the discharge valve 75 to the discharge space 29, and through the vertical grooves 71 provided on the outer circumferences of the main frame 21 and the fixed scroll 23.
  • the refrigerant flows out into the high-pressure space 27 below the main frame 21, and the high-pressure refrigerant is discharged out of the casing 3 through a discharge pipe 33 provided in the casing body 5.
  • the refrigerant discharged to the outside of the casing 3 circulates through a refrigerant circuit (not shown), and is again sucked into the compressor 1 through the suction pipe 31 and compressed, and the circulation of the refrigerant is repeated.
  • the flow of the lubricating oil will be described.
  • the lubricating oil stored in the inner bottom portion of the lower cap 9 in the casing 3 is sucked up by the oil pickup 45, and this lubricating oil passes through the oil supply passage 41 of the drive shaft 15 and the scroll compression mechanism 11.
  • Each of the sliding parts and the compression chamber 35 are supplied.
  • the excess lubricating oil in each sliding portion of the scroll compression mechanism 11 and the compression chamber 35 is collected from the return oil passage 47 to the oil collector 46 and passes through the notch 54 provided on the outer periphery of the stator 37. And returned to the lower side of the drive motor 13.
  • the rotor 39 is magnetized by winding magnetization, and the centering of the fixed scroll 23 is performed before the rotor 39 is magnetized. That is, when centering the fixed scroll 23, the rotor 39 is not magnetized.
  • the centering of the fixed scroll 23 is performed in a state where the scroll compression mechanism 11 and the drive motor 13 are attached to the casing body 5.
  • the upper cap 7, the suction pipe 31, the discharge valve 75, and the lower cap 9 are , Has been removed.
  • An adjusting device 80 is connected to the discharge hole 73 provided in the central portion of the fixed scroll 23 via a pipe 82.
  • the adjusting device 80 includes a pump 81 that compresses a gas such as air or nitrogen, a high pressure regulator 83, a low pressure regulator 84, a switching valve 86, a connection coupler 87, and the like.
  • a gas such as air or nitrogen
  • a high pressure regulator 83 a high pressure regulator 83
  • a low pressure regulator 84 a switching valve 86
  • connection coupler 87 is connected to the discharge hole 73 of the fixed scroll 23 and the pump 81 is operated.
  • Compression is performed by flowing compressed gas (pressurized fluid) adjusted to a constant pressure of 5 kg / cm 2 by the switching valve 86 from the discharge hole 73 into the oscillating space 12 through the connection coupler 87. Gas is applied to the discharge side of the scroll compression mechanism 11.
  • the oscillating scroll 25 oscillates in the direction opposite to that during the operation of compressing a normal refrigerant by the pressure of the compressed gas flowing into the oscillating space 12 from the discharge hole 73.
  • the fixed scroll 23 settles to a position where the wrap 23B of the fixed scroll 23 does not contact the wrap 25B of the swing scroll 25 over the entire circumference.
  • the screws 36 are evenly tightened, and the fixed scroll 23 is fastened and fixed to the main frame 21 at an optimal position, whereby the fixed scroll 23 is centered.
  • the rotor 39 is magnetized by winding magnetization after the fixed scroll 23 is centered and fastened and fixed to the main frame 21 at an optimal position.
  • the scroll compressor 1 is not shown, but is placed upside down in a state before the lower cap 9 and the oil pickup 45 are attached.
  • the rotating jig is inserted into the oil supply passage 41 formed inside the drive shaft 15, and the tip of the rotating jig is locked to the holder 58 extending radially inside the oil supply passage 41.
  • the rotary jig is driven to rotate, and the drive shaft 15 is rotated by a predetermined angle to place the rotor 39 at a predetermined position.
  • a current is passed through the stator windings constituting the stator coil 18 of the stator 37 of the drive motor 13 to generate a magnetic field inside the stator core 37A, thereby magnetizing the rotor 39.
  • the rotor 39 is magnetized to a plurality of poles by being magnetized a plurality of times while changing the angle while changing the phase.
  • the orbiting scroll 25 causes the magnetic force of the rotor 39 to be adjusted. It swings without being affected by. Accordingly, the rocking scroll 25 can be easily swung with the pressure of the compressed gas flowing into the rocking space 12 from the discharge hole 73, so that the centering operation of the fixed scroll 23 can be performed efficiently.
  • Second Embodiment In the first embodiment described above, the case has been described in which the rotor 39 is magnetized using the winding magnetization after the fixed scroll 23 is centered. In the second embodiment, the winding magnetization is performed. After the rotor 39 is magnetized using, the fixed scroll 23 is centered.
  • the configuration of the scroll compression device 1 of the second embodiment is the same as the configuration of the scroll compression device 1 of the first embodiment described with reference to FIG.
  • the rotor 39 is magnetized by winding magnetization.
  • the method of magnetizing the rotor 39 by winding magnetization is the same as the method described in the first embodiment.
  • the casing body 5 is placed on the adjustment stand 88 in a state where the fixed scroll 23 is temporarily fixed. Secure on top.
  • the connection coupler 87 is connected to the discharge hole 73 of the fixed scroll 23 and the pump 81 is operated.
  • a high pressure gas adjusted to a constant high pressure of 8 to 9 kg / cm 2 by a high pressure regulator 83 by a switching valve 86 is caused to flow from the discharge hole 73 into the oscillating space 12 through the connection coupler 87, thereby compressing the compressed gas. It acts on the discharge side of the scroll compression mechanism 11.
  • the orbiting scroll 25 compresses the normal refrigerant by overcoming the magnetic force of the magnetized rotor 39 by the pressure of the high-pressure gas of 8 to 9 kg / cm 2 flowing into the oscillation space 12 from the discharge hole 73. Oscillates in the opposite direction.
  • the fixed scroll 23 settles to a position where the wrap 23B of the fixed scroll 23 does not contact the wrap 25B of the swing scroll 25 over the entire circumference. In this state, the screws 36 are evenly tightened, and the fixed scroll 23 is fastened and fixed to the main frame 21 at an optimal position.
  • the orbiting scroll 25 can be rotated by the high-pressure gas poured into the oscillating space 12 from the discharge hole 73 in the same manner as when the rotor 39 is not magnetized.
  • the fixed scroll 23 is centered after the rotor 39 is magnetized using winding magnetism, the same accuracy as when the fixed scroll 23 is centered in a state where the rotor 39 is not magnetized.
  • the fixed scroll and the swing scroll can be assembled.
  • the rotor body 39 is magnetized by an external magnetizing device, and then the casing body is fixed to the drive shaft 15 by shrink fitting or the like.
  • a drive motor 13 is mounted in the interior 5.
  • the stator 37 is increased.
  • the rotor 39 needs to be magnetized by external magnetization. Therefore, the swing operation of the swing scroll 25 is affected by the magnetic force of the rotor 39.
  • the fixed scroll 23 is fixed with the same accuracy as when the rotor 39 is not magnetized and the fixed scroll 23 is centered. This is a method for assembling the scroll and the orbiting scroll.
  • the drive motor 13 is attached to the casing body 5. Thereafter, the casing body 5 is fixed on the adjustment table 88 in a state where the fixed scroll 23 is temporarily fixed. Next, the connection coupler 87 is connected to the discharge hole 73 of the fixed scroll 23 and the pump 81 is operated. A high pressure gas adjusted to a constant high pressure of 8 to 9 kg / cm 2 by a high pressure regulator 83 by a switching valve 86 is caused to flow from the discharge hole 73 into the oscillating space 12 through the connection coupler 87, thereby compressing the compressed gas. It acts on the discharge side of the scroll compression mechanism 11.
  • the orbiting scroll 25 compresses the normal refrigerant by overcoming the magnetic force of the magnetized rotor 39 by the pressure of the high-pressure gas of 8 to 9 kg / cm 2 flowing into the oscillation space 12 from the discharge hole 73. Oscillates in the opposite direction.
  • the fixed scroll 23 settles to a position where the wrap 23B of the fixed scroll 23 does not contact the wrap 25B of the swing scroll 25 over the entire circumference. In this state, the screws 36 are evenly tightened, and the fixed scroll 23 is fastened and fixed to the main frame 21 at an optimal position.
  • the oscillating scroll 25 is not easily oscillated by the high pressure gas flowing into the oscillating space 12 from the discharge hole 73.
  • the moving scroll 25 can be swung in the same manner as when the rotor 39 is not magnetized.
  • the drive motor 13 is attached to the casing body 5 after the rotor 39 is magnetized by external magnetization and the fixed scroll 23 is centered, the core of the fixed scroll 23 is kept in a state where the rotor 39 is not magnetized.
  • the fixed scroll and the orbiting scroll can be assembled with the same accuracy as the case of carrying out.
  • the scroll compression mechanism 11 that has the fixed scroll 23 and the swing scroll 25 inside the casing 3 and compresses the refrigerant, and the scroll compression mechanism 11.
  • an inverter-controlled DC drive motor 13 that is connected by a drive shaft 15 and drives the scroll compression mechanism 11.
  • the scroll compression mechanism 11 is attached to the casing 3 by the main frame 21.
  • the rotor 39 of the DC drive motor 13 is supported, and after the rotor 39 is magnetized, the compressed gas that can overcome the magnetized magnetic force and can swing the swing scroll 25 is swung from the discharge hole 73.
  • the rocking scroll 25 is swung by flowing into the space 12 and acting on the discharge side of the scroll compression mechanism 11.
  • the rotor 39 rotates the drive shaft 15 by a predetermined angle and stops, applies a voltage to the stator winding of the drive motor 13, and again sets the drive shaft 15 to the predetermined value. The operation is stopped by rotating the angle, and the operation of applying a voltage is repeated and magnetized.
  • the winding of the rotor 39 is performed by passing a current through the stator windings constituting the stator coil 18 of the stator 37 to generate a magnetic field in the stator core 37A and magnetizing the rotor 39.
  • the fixed scroll 23 can be centered by swinging the swing scroll 25 and swinging the swing scroll 25 with the pressure of the compressed gas.
  • the rotor 39 is magnetized before being assembled to the DC drive motor 13.
  • the compressed gas that can be magnetized by using an external magnetizing device and can overcome the magnetized magnetic force to swing the swing scroll 25 is discharged to the discharge hole 73.
  • it is poured into the oscillating space 12 to act on the discharge side of the scroll compression mechanism 11, and the oscillating scroll 25 is oscillated, and the oscillating scroll 25 is oscillated with the pressure of the compressed gas, thereby fixing the oscillating scroll 25.
  • the scroll 23 can be centered.
  • the scroll compression mechanism 11 that has the fixed scroll 23 and the swing scroll 25 inside the casing 3 and compresses the refrigerant, the scroll compression mechanism 11, and the drive shaft 15.
  • the scroll compression apparatus 1 includes an inverter-controlled DC drive motor 13 that is connected to the scroll compression mechanism 11 to drive the scroll compression mechanism 11.
  • the scroll compression mechanism 11 is supported by the casing 3 by the main frame 21 and discharged. After the compressed gas is applied to the discharge side of the scroll compression mechanism 11 from the hole 73 to swing the swing scroll 25 and the swing scroll 25 and the fixed scroll 23 are centered, the fixed scroll 23 is moved to the main scroll 23.
  • the drive shaft 15 While positioning to the frame 21, the drive shaft 15 is rotated by a predetermined angle and stopped, A voltage is applied to the winding of the C drive motor 13 again, the drive shaft 15 rotated by a predetermined angle and stopped, by repeating the operation of applying a voltage to magnetize the rotor.
  • compressed gas is applied to the discharge side of the scroll compression mechanism 11 to swing the orbiting scroll 25, the fixed scroll 23 is centered, and the fixed scroll 23 is positioned on the main frame 21. Therefore, when the fixed scroll 23 is centered, the swing operation of the swing scroll 25 can be performed without being affected by the magnetic force of the rotor 39, and the swing of the swing scroll 25 can be performed by the pressure of the compressed gas.
  • the fixed scroll 23 can be centered by swinging the moving scroll 25.

Landscapes

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

Abstract

L'invention fournit un dispositif de compresseur à spirale permettant d'effectuer facilement la magnétisation d'un rotor et le centrage d'une spirale fixe. L'invention fournit également le procédé de montage de ce dispositif de compresseur à spirale. Plus précisément, l'invention concerne le procédé de montage du dispositif de compresseur à spirale (1) qui est équipé dans la partie interne d'un carter (3) : d'un mécanisme de compresseur à spirale (11) qui possède une spirale fixe (23) et une spirale à oscillations (25); et d'un moteur d'entraînement (13) qui est raccordé au mécanisme de compresseur à spirale (11) par un axe d'entraînement (15), et qui entraîne ledit mécanisme de compresseur à spirale (11). Le mécanisme de compresseur à spirale (11) est maintenu dans le carter (3) par une armature principale (21). Le rotor (39) du moteur d'entraînement (13) est magnétisé, et après cette magnétisation, un gaz comprimé permettant un mouvement en oscillations de la spirale à oscillations (25) en surmontant la force magnétique ainsi obtenue, agit côté décharge du mécanisme de compresseur à spirale (11), et la spirale à oscillations (25) assure un mouvement en oscillations. Après centrage de la spirale à oscillations (25) et de la spirale fixe (23), la spirale fixe (23) est positionnée sur l'armature principale (21).
PCT/JP2011/079467 2011-03-24 2011-12-20 Dispositif de compresseur à spirale, et procédé de montage de celui-ci WO2012127753A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/007,273 US20140161649A1 (en) 2011-03-24 2011-12-20 Scroll compression device and assembling method for scroll compression device
CN201180069287.8A CN103429898B (zh) 2011-03-24 2011-12-20 涡旋压缩装置及涡旋压缩装置的组装方法

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP2011-065607 2011-03-24
JP2011065607A JP2012202252A (ja) 2011-03-24 2011-03-24 スクロール圧縮装置
JP2011-067051 2011-03-25
JP2011066920A JP2012202277A (ja) 2011-03-25 2011-03-25 スクロール圧縮装置
JP2011-066920 2011-03-25
JP2011066921A JP2012202278A (ja) 2011-03-25 2011-03-25 スクロール圧縮装置、及び、スクロール圧縮装置の着磁方法
JP2011-066921 2011-03-25
JP2011067051A JP5824668B2 (ja) 2011-03-25 2011-03-25 リング体把持治具及びスクロール圧縮装置
JP2011-069123 2011-03-28
JP2011069123A JP2012202349A (ja) 2011-03-28 2011-03-28 スクロール圧縮装置、及び、スクロール圧縮装置における組み立て方法

Publications (1)

Publication Number Publication Date
WO2012127753A1 true WO2012127753A1 (fr) 2012-09-27

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US (1) US20140161649A1 (fr)
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Publication number Priority date Publication date Assignee Title
US20130189133A1 (en) * 2012-01-19 2013-07-25 Danfoss (Tianjin) Ltd. Compressor and method of assembling compressor
WO2018198648A1 (fr) * 2017-04-26 2018-11-01 三菱電機株式会社 Procédé de fabrication de compresseur à spirale
GB2583371A (en) * 2019-04-26 2020-10-28 Edwards Ltd Adjustable scroll pump

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JPH11132164A (ja) * 1997-10-29 1999-05-18 Hitachi Ltd スクロール圧縮機
JPH11341752A (ja) * 1998-05-21 1999-12-10 Toshiba Corp 永久磁石形回転電機の着磁方法
JP2004011473A (ja) * 2002-06-04 2004-01-15 Sanden Corp スクロール型電動圧縮機の制御装置
JP2005188519A (ja) * 2005-02-28 2005-07-14 Sanyo Electric Co Ltd スクロール圧縮機の製造方法
JP2009097417A (ja) * 2007-10-16 2009-05-07 Mayekawa Mfg Co Ltd 密閉形スクロール圧縮機およびその組立方法

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JP4153131B2 (ja) * 1999-09-14 2008-09-17 サンデン株式会社 電動圧縮機
JP3896472B2 (ja) * 2002-09-04 2007-03-22 株式会社日立製作所 冷凍装置
JP2004270544A (ja) * 2003-03-07 2004-09-30 Matsushita Electric Ind Co Ltd 着磁治具および電動圧縮機ならびに回転子の組み立て方法および電動圧縮機の組み立て方法
JP2004308445A (ja) * 2003-04-02 2004-11-04 Denso Corp 電動圧縮機
KR20050067005A (ko) * 2003-12-26 2005-06-30 마츠시타 덴끼 산교 가부시키가이샤 영구자석형 전동기의 착자 방법 및 장치

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Publication number Priority date Publication date Assignee Title
JPH11132164A (ja) * 1997-10-29 1999-05-18 Hitachi Ltd スクロール圧縮機
JPH11341752A (ja) * 1998-05-21 1999-12-10 Toshiba Corp 永久磁石形回転電機の着磁方法
JP2004011473A (ja) * 2002-06-04 2004-01-15 Sanden Corp スクロール型電動圧縮機の制御装置
JP2005188519A (ja) * 2005-02-28 2005-07-14 Sanyo Electric Co Ltd スクロール圧縮機の製造方法
JP2009097417A (ja) * 2007-10-16 2009-05-07 Mayekawa Mfg Co Ltd 密閉形スクロール圧縮機およびその組立方法

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CN103429898B (zh) 2016-01-13
US20140161649A1 (en) 2014-06-12

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