WO2019207783A1 - Scroll compressor and method for manufacturing same - Google Patents

Scroll compressor and method for manufacturing same Download PDF

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Publication number
WO2019207783A1
WO2019207783A1 PCT/JP2018/017260 JP2018017260W WO2019207783A1 WO 2019207783 A1 WO2019207783 A1 WO 2019207783A1 JP 2018017260 W JP2018017260 W JP 2018017260W WO 2019207783 A1 WO2019207783 A1 WO 2019207783A1
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WO
WIPO (PCT)
Prior art keywords
scroll
frame
base plate
fixed
recess
Prior art date
Application number
PCT/JP2018/017260
Other languages
French (fr)
Japanese (ja)
Inventor
友寿 松井
岩崎　俊明
哲英 横山
祐司 ▲高▼村
雷人 河村
矢野　賢司
石園　文彦
優作 宮本
Original Assignee
三菱電機株式会社
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
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2020515446A priority Critical patent/JP6910544B2/en
Priority to PCT/JP2018/017260 priority patent/WO2019207783A1/en
Priority to CN201880092607.3A priority patent/CN112005013B/en
Publication of WO2019207783A1 publication Critical patent/WO2019207783A1/en

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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
    • 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

Definitions

  • the present invention relates to a scroll compressor used for an air conditioner or a refrigerator, and a manufacturing method thereof.
  • scroll compressors are known as compressors used in air conditioners or refrigerators.
  • an outer wall protruding toward the fixed scroll is provided on the outer periphery of the frame, and the frame has a concave shape.
  • This scroll compressor is provided with an orbiting scroll in a recess of a frame.
  • this scroll compressor uses the outer wall of the outer peripheral portion of the frame to fix the frame and the fixed scroll by phasing them with a fixing member such as a bolt or a pin.
  • the present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a scroll compressor and a method for manufacturing the same, which can increase the space in which the orbiting scroll is swung. .
  • a scroll compressor includes a fixed scroll having a fixed base plate provided with a first spiral protrusion and a swing base plate provided with a second spiral protrusion engaging the first spiral protrusion.
  • a swing scroll that forms a compression chamber for compressing refrigerant between the fixed scroll, a frame that supports the swing scroll in a swingable manner, the fixed scroll, the swing scroll, and the frame.
  • the frame is formed with a second recess formed at a position facing the first recess.
  • the fixed scroll and the frame are fixed to the inner wall surface of the main body shell, and the phase of the fixed scroll and the frame is determined using the first recess and the second recess.
  • Fixing members such as bolts or pins that phase and fix the fixed scroll can be omitted or simplified. Therefore, the scroll compressor of the present invention can omit the outer wall of the frame or can be thinned, so that the space where the orbiting scroll is swung can be increased.
  • FIG. 1 is a longitudinal sectional view showing the internal structure of a scroll compressor according to Embodiment 1 of the present invention.
  • FIG. 2 is a scroll compressor according to Embodiment 1 of the present invention, and is a schematic view showing an enlarged main part of the compression mechanism.
  • the scroll compressor 100 according to Embodiment 1 is one of components of a refrigeration cycle used in various industrial machines such as a refrigerator, a freezer, an air conditioner, a refrigeration apparatus, and a water heater.
  • the scroll compressor 100 sucks and compresses the refrigerant circulating in the refrigeration cycle and discharges it as a high-temperature and high-pressure state.
  • the scroll compressor 100 includes a compression mechanism unit in which a fixed scroll 3 and a swing scroll 4 that swings with respect to the fixed scroll 3 are combined in a main body shell 1 that forms an outer shell. 2 is provided. Further, the scroll compressor 100 includes an electric motor 7 inside the main body shell 1.
  • the main body shell 1 is formed in a cylindrical shape having a sealed space and has pressure resistance.
  • the main body shell 1 includes a cylindrical main shell 1a, a substantially hemispherical upper shell 1b that closes the upper surface opening of the main shell 1a, and a substantially hemispherical lower shell 1c that closes the lower surface opening of the main shell 1a. Yes.
  • the upper shell 1b and the lower shell 1c are fixed to the main shell 1a by welding or the like.
  • the side surface of the main body shell 1 is provided with a suction pipe 12 connected to take in the refrigerant into the main body shell 1 and a power supply unit 19 for supplying power to the scroll compressor 100.
  • a discharge pipe 13 that discharges the compressed refrigerant from the main body shell 1 is connected to the upper surface of the main body shell 1.
  • a frame 5 for swingably supporting the swing scroll 4 is fixed to the inner wall surface of the main shell 1a by shrink fitting or the like.
  • An oil sump 11 for storing lubricating oil is provided at the bottom of the main body shell 1.
  • the fixed scroll 3 is composed of a fixed base plate 3a and a first spiral protrusion 3b provided on the lower surface of the fixed base plate 3a.
  • the oscillating scroll 4 includes an oscillating base plate 4a and a second spiral protrusion 4b that is provided on the upper surface of the swing base plate 4a and meshes with the first spiral protrusion 3b.
  • the orbiting scroll 4 is installed eccentrically with respect to the fixed scroll 3.
  • a compression chamber 20 for compressing the refrigerant is formed by combining the first spiral protrusion 3 b of the fixed scroll 3 and the second spiral protrusion 4 b of the swing scroll 4.
  • the outer peripheral surface of the fixed base plate 3a is fixed to the inner wall surface of the main shell 1a by shrink fitting or the like.
  • the reason why the outer peripheral surface of the fixed base plate 3a is fixed to the inner wall surface of the main shell 1a is that the fixed scroll 3 can be shrink-fitted using the wide inner peripheral surface and outer peripheral surface of the main shell 1a, thereby improving workability. This is because, for example, the manufacturing process can be stabilized as compared with the case of shrink fitting in the upper shell 1b.
  • the fixed scroll 3 may shrink-fit the outer peripheral surface of the fixed base plate 3a to the inner wall surface of the upper shell 1b.
  • a discharge port 14 is formed in the central portion of the fixed base plate 3a to discharge the refrigerant that has been compressed to a high temperature and a high pressure.
  • the compressed high-temperature and high-pressure refrigerant is discharged from the discharge port 14 to the high-pressure chamber 15 above the fixed scroll 3, passes through the discharge pipe 13, and is discharged outside the main body shell 1.
  • the discharge port 14 is provided with a discharge valve 16 that prevents the refrigerant from flowing backward.
  • a phase determining member 9 used for assembling phase is inserted into the fixed base plate 3a of the fixed scroll 3 on the surface facing the frame 5 (the lower surface in the illustrated example).
  • the 1st recessed part 8a for doing is formed.
  • the 1st recessed part 8a is formed in the outer side of radial direction rather than the area
  • the illustrated first recess 8a is shown as a through hole, the first recess 8a is not limited to the through hole, and may have a structure in which the upper surface is closed.
  • the phase determining member 9 is a pin, for example.
  • the orbiting scroll 4 performs a revolving motion without rotating with respect to the fixed scroll 3 by an Oldham ring 17 for preventing the rotating motion.
  • the surface of the swing base plate 4a on the side where the second spiral protrusion 4b is not formed acts as the swing scroll thrust bearing surface 40.
  • a hollow cylindrical boss 41 is provided at the center of the orbiting scroll thrust bearing surface 40. The orbiting scroll 4 revolves on the thrust sliding surface of the frame 5 as the eccentric shaft portion 6a of the main shaft 6 inserted into the boss portion 41 rotates.
  • an Oldham claw protruding upward is slidably accommodated in an Oldham groove formed in the orbiting scroll thrust bearing surface 40 of the orbiting scroll 4, and the Oldham claw protruding downward is a frame. 5 is configured so as to be slidable in the Oldham keyway formed in 5.
  • the frame 5 is formed in a cylindrical shape that tapers downward in a stepwise manner, and supports the swing scroll 4 so as to be swingable.
  • An annular flat surface is formed on the upper surface of the frame 5.
  • a ring-shaped thrust plate 50 made of a steel plate material such as valve steel is provided.
  • the thrust plate 50 functions as a thrust sliding surface of the frame 5.
  • the frame 5 is formed with a protruding wall portion 51 protruding toward the upper shell 1b side on the outer periphery of the flat surface.
  • the upper surface of the projecting wall portion 51 is the upper end surface of the frame 5.
  • the protruding wall 51 is formed so that the upper surface thereof is substantially flush with the upper surface of the thrust plate 50. Note that the end surface on the side that supports the orbiting scroll 4 is not limited to the upper surface of the illustrated protruding wall portion 51, and may be the upper surface of another component.
  • Frame 5 is spaced S 1 goal between the upper surface of the protruding wall portion 51 is an end on the side that supports the swing scroll 4 and the fixed base plate 3a. That is, the fixed base plate 3a of the fixed scroll 3 and the upper end surface of the frame 5 are not joined, and the fixed scroll 3 and the frame 5 are not in direct contact.
  • a second recess 8 b is formed in the projecting wall portion 51, which is a position facing the first recess 8 a and into which the phase determining member 9 common to the first recess 8 a is inserted.
  • a main bearing 60 that supports the main shaft 6 that is rotationally driven by the electric motor 7 in the radial direction is formed at the center of the frame 5.
  • An oil return pipe 52 is inserted and fixed to the frame 5 in a discharge hole formed through the inside and outside.
  • the oil return pipe 52 is a pipe for returning the lubricating oil collected in the cylinder of the frame 5 to the oil sump 11.
  • the electric motor 7 includes an annular stator 7a that is fixedly supported on the inner wall surface of the main body shell 1 by shrink fitting or the like, and a rotor 7b that is rotatably attached to the inner surface of the stator 7a. ing.
  • the electric motor 7 drives the compression mechanism part 2 connected via the main shaft 6.
  • the main shaft 6 is rotatably supported by a main bearing 60 provided in the center portion of the frame 5 and a sub bearing 62 provided in the center portion of the sub frame 61 fixed to the lower portion of the body shell 1 by welding or the like.
  • An eccentric shaft portion 6 a that is rotatably supported by the boss portion 41 of the orbiting scroll 4 is provided at the upper end portion of the main shaft 6.
  • the eccentric shaft portion 6a is engaged with the orbiting scroll 4 on an eccentric shaft that is eccentric from the rotating shaft.
  • the main shaft 6 rotates with the rotation of the rotor 7b, and the swinging scroll 4 is turned by the eccentric shaft portion 6a.
  • the sub frame 61 is provided with an oil pump 61a. The lubricating oil sucked by the oil pump 61a is sent to each sliding portion through an oil supply hole 63 formed in the main shaft 6.
  • the main shaft 6 is provided with a slider 18 with a balance weight.
  • the balance weight is provided to cancel out the centrifugal force of the swing scroll 4 generated by the swing motion.
  • the balance weight is disposed on the side opposite to the direction of the centrifugal force acting on the swing scroll 4.
  • the scroll compressor 100 can reduce the pressing of the second spiral protrusion 4b against the first spiral protrusion 3b by the balance weight.
  • the slider 18 is rotatably inserted into the boss portion 41.
  • An eccentric shaft portion 6 a is inserted into the slide surface of the slider 18. That is, the slider 18 is interposed between the orbiting scroll 4 and the eccentric shaft portion 6a of the main shaft 6 so that the orbiting radius of the orbiting scroll 4 can be changed and the orbiting scroll 4 can be revolved. To do.
  • the suction refrigerant sucked from the suction pipe 12 enters the compression chamber 20 through a suction port (not shown) provided in the frame 5.
  • the orbiting scroll 4 performs an eccentric turning motion by the eccentric shaft portion 6 a of the main shaft 6 that is rotated by the electric motor 7.
  • the orbiting scroll 4 performs a revolving motion by preventing rotation by the Oldham ring 17.
  • the volume of the compression chamber 20 becomes small gradually, and a refrigerant
  • the compressed refrigerant is discharged from the discharge port 14 of the fixed base plate 3 a to the high-pressure chamber 15 and discharged to the outside of the main body shell 1 through the discharge pipe 13.
  • the scroll compressor 100 has a structural limit on the volume of the compression chamber 20 that compresses the refrigerant.
  • a compression chamber 20 is formed inside a cylindrical frame 5 fixed to the inner wall surface of the main body shell 1. Since the scroll compressor 100 is designed so that the orbiting scroll 4 is accommodated inside the cylinder of the frame 5, a physical spiral volume limit is generated.
  • the volume of the compression chamber 20 is determined by the second spiral protrusion 4b provided on the swing base plate 4a. Therefore, when the outer diameter of the swinging base plate 4a is small, the second spiral protrusion 4b is also small, and the volume of the compression chamber 20 is also small.
  • the outer diameter of the swing base plate 4a may be designed to be large.
  • the outer diameter of the swing base plate 4 a is determined by the inner diameter inside the cylinder of the frame 5. Therefore, a target distance S between the fixed base plate 3a of the fixed scroll 3 and the upper end surface of the frame 5 is set so that the outer diameter of the orbiting scroll 4 can be maximized up to the vicinity of the inner wall of the main body shell 1.
  • a configuration in which 1 is provided is conceivable. However, in this case, it is necessary to fix the fixed scroll 3 to the inner wall surface of the main body shell 1 without bonding the fixed base plate 3a and the frame 5 with a bonding member. It was a problem to secure.
  • the spiral design is a compression portion design, and the meshing of the spiral protrusions provided on the fixed scroll 3 and the orbiting scroll 4 needs to be highly accurate.
  • the phase of the spiral protrusions is phased by a phase determining pin as used in a conventional scroll compressor.
  • the orbiting scroll 4 revolves, it is difficult to phase out the fixed scroll 3 and the direct phasing pin. Therefore, the general structure is that the rocking scroll 4 and the frame 5 are engaged by the Oldham ring 17, the fixed scroll 3 and the frame 5 are fixed by the phasing pin, and indirectly the fixed scroll 3 and the rocking scroll. 4 phase out.
  • the structure for determining the rotational phase of two parts is most easily assembled with the structure in which the rotational phase is determined at one location with a fulcrum as the fulcrum. That is, the structure is positioned at two locations. If the fixed scroll 3 and the frame 5 are fixed to the inner wall surface of the main body shell 1, it becomes difficult to apply the conventional method of inserting two phasing pins between the fixed scroll 3 and the frame 5. After the phase of the fixed scroll 3 and the frame 5 is determined, the conventional method in which the fixed scroll 3 is bolted and fixed to the frame 5 is fixed according to the center of the two pins and the inner wall of the main body shell 1. This is because it is necessary to have machining accuracy that matches the center of the outer diameter of the fixed scroll 3.
  • the fixed scroll 3 is fixed to the inner wall surface of the main body shell 1, and the target is between the end surface on the side where the frame 5 supports the orbiting scroll 4 and the fixed base plate 3 a. They are arranged at intervals S 1 of. That is, the scroll compressor 100 is configured such that the fixed base plate 3 a of the fixed scroll 3 and the upper end surface of the frame 5 are not joined. Therefore, since the outer diameter of the swing base plate 4a is not limited by the inner diameter of the frame 5, the scroll compressor 100 uses the outer diameter of the swing base plate 4a as the design space of the second spiral protrusion 4b. It can be expanded to the vicinity.
  • the scroll compressor 100 can be designed so that the volume of the compression chamber 20 is large, and the maximum horsepower can be increased. Further, by adopting a configuration in which the fixed base plate 3a of the fixed scroll 3 and the upper end surface of the frame 5 are not joined, the outer wall surface of the frame 5 provided for joining to the fixed base plate 3a can be omitted. Therefore, the material cost can be reduced and the weight can be reduced.
  • the first recess 8a is formed in the fixed scroll 3, and the second recess 8b is formed in the frame 5 at a position facing the first recess 8a.
  • a pin that is a common phasing member 9 can be inserted by using the concave portion 8b, and assembly phasing can be performed. That is, the scroll compressor 100 expands the outer diameter of the swing base plate 4a to the vicinity of the inner wall of the body shell 1 as a design space for the second spiral protrusion 4b while ensuring the phase accuracy between the fixed scroll 3 and the frame 5. Therefore, the volume of the compression chamber 20 can be increased.
  • FIG. 3 is a schematic diagram illustrating the scroll compressor according to Embodiment 1 of the present invention, in which the phase determining member inserted into the first recess is extracted.
  • the method for manufacturing the scroll compressor according to Embodiment 1 includes a frame fixing step for fixing the frame 5 to the inner wall surface of the main shell 1a, and a first recess after the frame fixing step.
  • a phasing process for inserting the phasing member 9 into the second recess 8b and phasing the fixed scroll 3 and the frame 5, and after the phasing process, the fixed base plate 3a is attached to the inner wall surface of the main shell 1a.
  • the first concave portion 8a is fixed.
  • the phase determining member 9 is inserted into the second recess 8b to determine the phase of the fixed scroll 3 and the frame 5.
  • the phase determining member 9 is a pin, for example.
  • the outer peripheral surface of the fixed base plate 3a is fixed to the inner wall surface of the main shell 1a by shrink fitting or the like. In this manner, the rotational phase between the fixed scroll 3 and the frame 5 is determined. As shown in FIG.
  • the pin which is the phasing member 9 is pulled out from the first recess 8a and the second recess 8b after the outer peripheral surface of the fixed base plate 3a is fixed to the inner wall surface of the main shell 1a.
  • the pin which is the phasing member 9 may be inserted into the first recess 8a and the second recess 8b as shown in FIG.
  • the swinging scroll 4 can be enlarged by extracting the phasing member 9 from the first recess 8a and the second recess 8b.
  • the phase determining member 9 is configured to be extracted from the first concave portion 8a and the second concave portion 8b
  • the first concave portion 8a is a spiral tooth that is an area where the first spiral protrusion portion 3b of the fixed base plate 3a is provided. It can be formed in the inner region.
  • a sealing member (not shown) that suppresses the flow of the refrigerant through the first recess 8a is used as the first recess. It is good to provide in 8a.
  • the sealing member may be formed by extracting the phasing member 9 from the second recess 8b and retaining it inside the first recess 8a.
  • FIG. 4 is a scroll compressor according to the second embodiment of the present invention, and is a schematic diagram illustrating an enlarged main part of the compression mechanism.
  • symbol is attached
  • the scroll compressor 100 forms the first recess 8a in the fixed base plate 3a, the second recess 8b in the frame 5, and the phase determining member 9 common to the first recess 8a and the second recess 8b.
  • the phase accuracy between the fixed scroll 3 and the frame 5 can be increased.
  • the upper end surface of the frame 5 in which the second recess 8b is formed and the fixed base plate 3a are too far apart and the length of the phase determining member 9 is increased, the phase shift distance may increase and the phase accuracy may decrease. There is. The reason is that, for example, when the allowance between the pin and the first recess 8a and the gap are the same size as the conventional one, the inclination angle is constant, but the phase shift distance increases as the pin length increases.
  • the fixed scroll 3 of the scroll compressor 101 is provided with a land portion 30 protruding from the fixed base plate 3a toward the frame 5 and having the first recess 8a formed therein.
  • the frame 5 is formed with a second recess 8b at a position facing the first recess 8a.
  • a pin is fitted into the first concave portion 8a and the second concave portion 8b as the phasing member 9 used for assembling phasing. That is, in the scroll compressor 100, by providing the land portion 30 on the fixed base plate 3a, the length of the phasing member 9 can be shortened, so that the phase shift can be suppressed, and the fixed scroll 3 and the frame 5 can be suppressed. And the phase accuracy can be improved.
  • the land portion 30, between the upper end surface of the frame 5, is provided with an interval S 2 or the thickness of the oscillating base plate 4a. That is, the outer diameter of the swing base plate 4 a can be expanded to a position adjacent to the phasing member 9.
  • the swing base plate 4 a may be configured such that a part of the swing base plate 4 is always inserted between the land portion 30 and the frame 5 in the revolving motion of the swing scroll 4.
  • the configuration may be such that the portion enters at least once per revolution. Therefore, the scroll compressor 100 expands the outer diameter of the swing base plate 4a to the vicinity of the inner wall of the main shell 1 as a design space for the second spiral protrusion 4b while ensuring the phase accuracy between the fixed scroll 3 and the frame 5. Therefore, the volume of the compression chamber 20 can be increased, and the maximum horsepower can be increased.
  • the land portion 30 may be provided only in the portion where the phase determining member 9 is provided. However, in consideration of the rigidity of the fixed scroll 3 and the workability when the fixed scroll 3 is manufactured, the land portion 30 is provided on the outer peripheral edge of the fixed scroll 3. It is desirable to provide the entire circumference along.
  • FIG. 5 is a modified example of the scroll compressor according to Embodiment 2 of the present invention, and is a schematic view showing an enlarged main part of the compression mechanism.
  • FIG. 6 is a modification of the scroll compressor according to Embodiment 2 of the present invention, and is a schematic view showing a state where the phase determining member inserted into the first recess and the second recess is extracted.
  • the scroll compressor 101 shown in FIG. 5 has a configuration in which the first recess 8 a is a through hole that penetrates the fixed base plate 3 a and the land portion 30. That is, in the scroll compressor 101 shown in FIG.
  • the phasing member 9 fitted in the first recess 8 a and the second recess 8 b is used to determine the phase of the fixed scroll 3 and the frame 5 and then the first recess 8 a. And it can extract from the 2nd recessed part 8b.
  • the phasing member 9 is inserted into the first recess 8a and the second recess 8b, and the fixed scroll 3 Phase determination with frame 5 is performed.
  • the phase determining member 9 is, for example, a pin.
  • the phasing member 9 is removed from the first recess 8a and the second recess 8b as shown in FIG. In this manner, the rotational phase between the fixed scroll 3 and the frame 5 is determined.
  • the phasing member 9 may be kept inserted without being extracted from the first recess 8 a and the second recess 8 b.
  • FIG. 7 is a scroll compressor according to Embodiment 3 of the present invention, and is a schematic diagram showing an enlarged main part of the compression mechanism.
  • symbol is attached
  • Land portions 30 in the third embodiment, between the upper end surface of the frame 5, is provided at a small spacing S 3 than the thickness of the oscillating base plate 4a.
  • the orbiting scroll 4 is formed with a thin portion 42 that enters a gap provided between the land portion 30 and the frame 5.
  • the swing base plate 4a may have a configuration in which the thin portion 42 is always inserted between the land portion 30 and the frame 5 in the revolving motion of the swing scroll 4, or between the land portion 30 and the frame 5, The thin portion 42 may enter at least once per revolution.
  • this scroll compressor 102 the upper end surface of the frame 5 and the lower end surface of the land portion 30 are close to each other, so that the length of the phasing member 9 can be shortened and the phase shift is effectively suppressed. Phase accuracy can be improved. Further, in this scroll compressor 102, only the range located in the land portion 30 in the revolving motion of the orbiting scroll 4 is the thin portion 42, so that the orbiting base plate 4 a as a whole is positioned up to a position adjacent to the phasing member 9. Can be enlarged. Therefore, the volume of the compression chamber 20 can be increased and the maximum horsepower can be increased.
  • the land portion 30 may be provided only in the portion where the phase determining member 9 is provided. However, in consideration of the rigidity of the fixed scroll 3 and the workability when manufacturing the fixed scroll 3, It is desirable to provide the entire circumference along.
  • FIG. 8 is a scroll compressor according to the fourth embodiment of the present invention, and is a schematic diagram illustrating the compression mechanism portion in a plan view.
  • the same components as those of the scroll compressor described in the first to third embodiments are denoted by the same reference numerals, and the description thereof is omitted as appropriate.
  • the swing scroll 4 of the scroll compressor has a swing base plate 4a having a portion where the second spiral protrusion portion 4b is erected and a portion which becomes the revolution locus of the first spiral protrusion portion 3b. That's fine.
  • the swing base plate 4a does not have to be substantially circular in plan view.
  • a straight line connecting the center portion O of the orbiting scroll 4 and the outer end portion 4c of the second spiral protrusion 4b is defined as the X axis
  • the center portion O of the orbiting base plate 4a and The straight line perpendicular to the X axis is defined as the Y axis
  • the X axis and the Y axis are divided into four quadrants A to D.
  • the swing base plate 4a of the swing scroll 4 that is not used as the compression mechanism section 2 has the second quadrant B and the third quadrant adjacent to the first quadrant A, where the first quadrant A includes the outer end 4c. Quadrant C. That is, the rocking scroll 4 is not functionally problematic in compressing the refrigerant even if the second quadrant B and the third quadrant C are notched.
  • the notch portion is formed in the swing base plate 4 a located in the second quadrant B and the third quadrant C adjacent to the first quadrant A. 43 and 44 are formed.
  • the land portion 30 is located in the second quadrant B when projected onto the XY plane composed of the X axis and the Y axis.
  • the land portion 30 may be located in the third quadrant C when projected onto the XY plane composed of the X axis and the Y axis.
  • Embodiment 1 when the phasing member 9 is projected onto the XY plane composed of the X axis and the Y axis, it is positioned in the second quadrant B or the third quadrant C. Suppose you are.
  • the scroll compressor 103 in the scroll compressor 103 according to the fourth embodiment, the part of the swing base plate 4a where the second spiral protrusion part 4b is erected and the part which becomes the revolution locus of the first spiral protrusion part 3b are used as the second spiral protrusion.
  • the design space of the portion 4b can be expanded to the vicinity of the inner wall of the body shell 1. Therefore, the scroll compressor 103 can increase the volume of the compression chamber 20 and can increase the maximum horsepower.
  • FIG. 8 shows a configuration in which the cutout portions 43 and 44 are formed in the second quadrant B and the third quadrant C adjacent to the first quadrant A.
  • FIG. A notch may be formed in at least one quadrant.
  • the land portion 30 is provided at a position corresponding to the formed notch portion.
  • FIG. 9 is a schematic diagram showing a configuration in which a parallel key is used as a phasing member.
  • the second recess 8b may be a key groove
  • the phase determining member 10 may be a parallel key that fits into the first recess 8a and the second recess 8b.
  • the parallel key is attached to the pin or formed integrally with the pin. Having a parallel key allows phasing with a single pin.
  • the parallel key that is the phase determining member 10 has been described based on the fourth embodiment for convenience of explanation, but is not limited to this, and can be applied to the configurations of the first to third embodiments.
  • the present invention includes a range of design changes and application variations usually made by those skilled in the art without departing from the technical idea thereof.

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

Abstract

This scroll compressor is provided with: a fixed scroll that has a fixed baseplate provided with a first spiral protrusion; an orbiting scroll that forms, between the orbiting scroll and the fixed scroll, a compression chamber for compressing a refrigerant, and has an orbiting baseplate provided with a second spiral protrusion which meshes with the first spiral protrusion; a frame that supports the orbiting scroll in a freely orbiting manner; and a body shell that accommodates the fixed scroll, the orbiting scroll, and the frame. The fixed scroll and the frame are affixed to an inner wall surface of the body shell. A first recess is formed in a surface, of the fixed baseplate, on a side opposing the frame. A second recess is formed, in the frame, at a position opposing the first recess.

Description

スクロール圧縮機及びその製造方法Scroll compressor and manufacturing method thereof
　本発明は、空調機又は冷凍機等に用いられるスクロール圧縮機及びその製造方法に関するものである。 The present invention relates to a scroll compressor used for an air conditioner or a refrigerator, and a manufacturing method thereof.
　従来、空調機又は冷凍機等に用いられる圧縮機としてスクロール圧縮機が知られている。例えば、特許文献１に開示されたスクロール圧縮機では、固定スクロールに向いて突設した外壁がフレームの外周部に設けられており、フレームが凹形状を有している。このスクロール圧縮機は、フレームの凹部内に揺動スクロールが設けられている。また、このスクロール圧縮機は、フレームの外周部の外壁を利用して、フレームと固定スクロールとを、ボルトまたはピン等の固定部材で、位相決めして固定している。 Conventionally, scroll compressors are known as compressors used in air conditioners or refrigerators. For example, in the scroll compressor disclosed in Patent Document 1, an outer wall protruding toward the fixed scroll is provided on the outer periphery of the frame, and the frame has a concave shape. This scroll compressor is provided with an orbiting scroll in a recess of a frame. Further, this scroll compressor uses the outer wall of the outer peripheral portion of the frame to fix the frame and the fixed scroll by phasing them with a fixing member such as a bolt or a pin.
特開平３－７４５８８号公報Japanese Patent Laid-Open No. 3-74588
　特許文献１に開示されたスクロール圧縮機では、フレームの凹部内に揺動スクロールが設けられているため、フレームの外壁の厚み分、揺動スクロールが揺動するスペースが小さくなっている。特に、このスクロール圧縮機では、フレームの外壁を利用して、フレームと固定スクロールとを、ボルトまたはピン等の固定部材で、位相決めして固定しているため、フレームの外壁の幅が厚くなっており、揺動スクロールが揺動するスペースが小さくなっている。 In the scroll compressor disclosed in Patent Document 1, since the orbiting scroll is provided in the recessed portion of the frame, the space in which the orbiting scroll swings is reduced by the thickness of the outer wall of the frame. In particular, in this scroll compressor, since the frame and the fixed scroll are phased and fixed by a fixing member such as a bolt or a pin using the outer wall of the frame, the width of the outer wall of the frame becomes thick. Therefore, the space where the swing scroll swings is small.
　本発明は、上記のような課題を解決するためになされたもので、揺動スクロールが揺動するスペースを大型化することができる、スクロール圧縮機及びその製造方法を提供することを目的としている。 The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a scroll compressor and a method for manufacturing the same, which can increase the space in which the orbiting scroll is swung. .
　本発明に係るスクロール圧縮機は、第１渦巻突起部が設けられた固定台板を有する固定スクロールと、前記第１渦巻突起部と噛み合う第２渦巻突起部が設けられた揺動台板を有し、前記固定スクロールとの間に冷媒を圧縮する圧縮室を形成する揺動スクロールと、前記揺動スクロールを揺動自在に支持するフレームと、前記固定スクロールと前記揺動スクロールと前記フレームとを収容した本体シェルと、を備え、前記固定スクロールと前記フレームとが、前記本体シェルの内壁面に固着されており、前記固定台板には、前記フレームと対向する側の面に第１凹部が形成され、前記フレームには、前記第１凹部と対向する位置に第２凹部が形成されているものである。 A scroll compressor according to the present invention includes a fixed scroll having a fixed base plate provided with a first spiral protrusion and a swing base plate provided with a second spiral protrusion engaging the first spiral protrusion. A swing scroll that forms a compression chamber for compressing refrigerant between the fixed scroll, a frame that supports the swing scroll in a swingable manner, the fixed scroll, the swing scroll, and the frame. A main body shell, wherein the fixed scroll and the frame are fixed to an inner wall surface of the main body shell, and the fixed base plate has a first recess on a surface facing the frame. The frame is formed with a second recess formed at a position facing the first recess.
　本発明によれば、固定スクロールとフレームとが本体シェルの内壁面に固着されており、第１凹部と第２凹部とを利用して固定スクロールとフレームとの位相決めが行われるため、フレームと固定スクロールとを位相決めして且つ固定するボルトまたはピン等の固定部材を省略し又は簡略化することができる。したがって、本発明のスクロール圧縮機は、フレームの外壁を省略し又は薄肉化することができるため、揺動スクロールが揺動するスペースを大型化することができる。 According to the present invention, the fixed scroll and the frame are fixed to the inner wall surface of the main body shell, and the phase of the fixed scroll and the frame is determined using the first recess and the second recess. Fixing members such as bolts or pins that phase and fix the fixed scroll can be omitted or simplified. Therefore, the scroll compressor of the present invention can omit the outer wall of the frame or can be thinned, so that the space where the orbiting scroll is swung can be increased.
本発明の実施の形態１に係るスクロール圧縮機の内部構造を示した縦断面図である。It is the longitudinal cross-sectional view which showed the internal structure of the scroll compressor which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係るスクロール圧縮機であって、圧縮機構部の要部を拡大して示した模式図である。It is the scroll compressor which concerns on Embodiment 1 of this invention, Comprising: It is the schematic diagram which expanded and showed the principal part of the compression mechanism part. 本発明の実施の形態１に係るスクロール圧縮機であって、第１凹部に挿入した位相決め部材を抜き取った状態を示した模式図である。It is the scroll compressor which concerns on Embodiment 1 of this invention, Comprising: It is the schematic diagram which showed the state which extracted the phase determination member inserted in the 1st recessed part. 本発明の実施の形態２に係るスクロール圧縮機であって、圧縮機構部の要部を拡大して示した模式図である。It is the scroll compressor which concerns on Embodiment 2 of this invention, Comprising: It is the schematic diagram which expanded and showed the principal part of the compression mechanism part. 本発明の実施の形態２に係るスクロール圧縮機の変形例であって、圧縮機構部の要部を拡大して示した模式図である。It is the modification of the scroll compressor which concerns on Embodiment 2 of this invention, Comprising: It is the schematic diagram which expanded and showed the principal part of the compression mechanism part. 本発明の実施の形態２に係るスクロール圧縮機の変形例であって、第１凹部及び第２凹部に挿入した位相決め部材を抜き取った状態を示した模式図である。It is the modification of the scroll compressor which concerns on Embodiment 2 of this invention, Comprising: It is the schematic diagram which showed the state which extracted the phase determination member inserted in the 1st recessed part and the 2nd recessed part. 本発明の実施の形態３に係るスクロール圧縮機であって、圧縮機構部の要部を拡大して示した模式図である。It is the scroll compressor which concerns on Embodiment 3 of this invention, Comprising: It is the schematic diagram which expanded and showed the principal part of the compression mechanism part. 本発明の実施の形態４に係るスクロール圧縮機であって、圧縮機構部を平面的に示した模式図である。It is the scroll compressor which concerns on Embodiment 4 of this invention, Comprising: It is the schematic diagram which showed the compression mechanism part planarly. 位相決め部材として並行キーを使用した構成を示した模式図である。It is the schematic diagram which showed the structure which uses a parallel key as a phase determination member.
　以下、図面を参照して、本発明の実施の形態について説明する。なお、各図中、同一または相当する部分には、同一符号を付して、その説明を適宜省略または簡略化する。また、各図に記載の構成について、その形状、大きさ、及び配置等は、本発明の範囲内で適宜変更することができる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof is omitted or simplified as appropriate. Moreover, about the structure as described in each figure, the shape, a magnitude | size, arrangement | positioning, etc. can be suitably changed within the scope of the present invention.
　実施の形態１．
　先ず、図１及び図２に基づいてスクロール圧縮機１００の構成及び動作を説明する。図１は、本発明の実施の形態１に係るスクロール圧縮機の内部構造を示した縦断面図である。図２は、本発明の実施の形態１に係るスクロール圧縮機であって、圧縮機構部の要部を拡大して示した模式図である。実施の形態１に係るスクロール圧縮機１００は、例えば、冷蔵庫、冷凍庫、空気調和装置、冷凍装置、給湯器等の各種産業機械に用いられる冷凍サイクルの構成要素の一つとなるものである。 Embodiment 1 FIG.
First, the configuration and operation of the scroll compressor 100 will be described with reference to FIGS. 1 and 2. FIG. 1 is a longitudinal sectional view showing the internal structure of a scroll compressor according to Embodiment 1 of the present invention. FIG. 2 is a scroll compressor according to Embodiment 1 of the present invention, and is a schematic view showing an enlarged main part of the compression mechanism. The scroll compressor 100 according to Embodiment 1 is one of components of a refrigeration cycle used in various industrial machines such as a refrigerator, a freezer, an air conditioner, a refrigeration apparatus, and a water heater.
　スクロール圧縮機１００は、冷凍サイクルを循環する冷媒を吸入して圧縮し、高温高圧の状態として吐出させるものである。スクロール圧縮機１００は、図１に示すように、外郭を形成する本体シェル１の内部に、固定スクロール３と、固定スクロール３に対して揺動する揺動スクロール４と、を組み合わせた圧縮機構部２を備えている。また、スクロール圧縮機１００は、本体シェル１の内部に電動機７を備えている。 The scroll compressor 100 sucks and compresses the refrigerant circulating in the refrigeration cycle and discharges it as a high-temperature and high-pressure state. As shown in FIG. 1, the scroll compressor 100 includes a compression mechanism unit in which a fixed scroll 3 and a swing scroll 4 that swings with respect to the fixed scroll 3 are combined in a main body shell 1 that forms an outer shell. 2 is provided. Further, the scroll compressor 100 includes an electric motor 7 inside the main body shell 1.
　本体シェル１は、図１に示すように、密閉空間を有する円筒形状に形成されたものであって耐圧性を有している。本体シェル１は、円筒状のメインシェル１ａと、メインシェル１ａの上面開口を塞ぐ略半球状のアッパーシェル１ｂと、メインシェル１ａの下面開口を塞ぐ略半球状のロアシェル１ｃと、で構成されている。アッパーシェル１ｂ及びロアシェル１ｃは、それぞれメインシェル１ａに溶接等で固着されている。 As shown in FIG. 1, the main body shell 1 is formed in a cylindrical shape having a sealed space and has pressure resistance. The main body shell 1 includes a cylindrical main shell 1a, a substantially hemispherical upper shell 1b that closes the upper surface opening of the main shell 1a, and a substantially hemispherical lower shell 1c that closes the lower surface opening of the main shell 1a. Yes. The upper shell 1b and the lower shell 1c are fixed to the main shell 1a by welding or the like.
　本体シェル１の側面には、冷媒を本体シェル１の内部に取り込むため接続された吸入管１２と、スクロール圧縮機１００に給電するための給電部１９が設けられている。本体シェル１の上面には、圧縮した冷媒を本体シェル１から吐き出す吐出管１３が接続されている。本体シェル１の上部側には、揺動スクロール４を揺動自在に支持するフレーム５が、メインシェル１ａの内壁面に焼き嵌め等により固着されている。また、本体シェル１の底部には潤滑油を貯留する油溜め１１が設けられている。 The side surface of the main body shell 1 is provided with a suction pipe 12 connected to take in the refrigerant into the main body shell 1 and a power supply unit 19 for supplying power to the scroll compressor 100. A discharge pipe 13 that discharges the compressed refrigerant from the main body shell 1 is connected to the upper surface of the main body shell 1. On the upper side of the main body shell 1, a frame 5 for swingably supporting the swing scroll 4 is fixed to the inner wall surface of the main shell 1a by shrink fitting or the like. An oil sump 11 for storing lubricating oil is provided at the bottom of the main body shell 1.
　固定スクロール３は、図１に示すように、固定台板３ａと、固定台板３ａの下面に設けられた第１渦巻突起部３ｂと、で構成されている。揺動スクロール４は、揺動台板４ａと、揺動台板４ａの上面に設けられ、第１渦巻突起部３ｂと噛み合う第２渦巻突起部４ｂと、で構成されている。揺動スクロール４は、固定スクロール３に対して偏心させて設置されている。固定スクロール３の第１渦巻突起部３ｂと揺動スクロール４の第２渦巻突起部４ｂとが組み合わされて冷媒を圧縮する圧縮室２０が形成されている。 As shown in FIG. 1, the fixed scroll 3 is composed of a fixed base plate 3a and a first spiral protrusion 3b provided on the lower surface of the fixed base plate 3a. The oscillating scroll 4 includes an oscillating base plate 4a and a second spiral protrusion 4b that is provided on the upper surface of the swing base plate 4a and meshes with the first spiral protrusion 3b. The orbiting scroll 4 is installed eccentrically with respect to the fixed scroll 3. A compression chamber 20 for compressing the refrigerant is formed by combining the first spiral protrusion 3 b of the fixed scroll 3 and the second spiral protrusion 4 b of the swing scroll 4.
　固定スクロール３は、固定台板３ａの外周面がメインシェル１ａの内壁面に、焼き嵌め等で固着されている。固定台板３ａの外周面をメインシェル１ａの内壁面に固着させる理由は、メインシェル１ａにおける幅広の内周面と外周面を利用して固定スクロール３を焼き嵌めできるので、作業性を高めることができ、例えばアッパーシェル１ｂに焼き嵌めする場合と比較して製造工程を安定化させることができるからである。但し、固定スクロール３は、固定台板３ａの外周面をアッパーシェル１ｂの内壁面に焼き嵌めしてもよい。 In the fixed scroll 3, the outer peripheral surface of the fixed base plate 3a is fixed to the inner wall surface of the main shell 1a by shrink fitting or the like. The reason why the outer peripheral surface of the fixed base plate 3a is fixed to the inner wall surface of the main shell 1a is that the fixed scroll 3 can be shrink-fitted using the wide inner peripheral surface and outer peripheral surface of the main shell 1a, thereby improving workability. This is because, for example, the manufacturing process can be stabilized as compared with the case of shrink fitting in the upper shell 1b. However, the fixed scroll 3 may shrink-fit the outer peripheral surface of the fixed base plate 3a to the inner wall surface of the upper shell 1b.
　固定台板３ａの中央部には、圧縮されて高温かつ高圧となった冷媒を吐出する吐出ポート１４が形成されている。圧縮された高温かつ高圧冷媒は、吐出ポート１４から固定スクロール３の上部の高圧室１５に排出され、吐出管１３を通り、本体シェル１の外部へ吐出される。吐出ポート１４には、冷媒の逆流を防ぐ吐出弁１６が設けられている。 A discharge port 14 is formed in the central portion of the fixed base plate 3a to discharge the refrigerant that has been compressed to a high temperature and a high pressure. The compressed high-temperature and high-pressure refrigerant is discharged from the discharge port 14 to the high-pressure chamber 15 above the fixed scroll 3, passes through the discharge pipe 13, and is discharged outside the main body shell 1. The discharge port 14 is provided with a discharge valve 16 that prevents the refrigerant from flowing backward.
　また、図２に示すように、固定スクロール３の固定台板３ａには、フレーム５と対向する側の面（図示例の場合は下面）に、組み立て位相出しに用いられる位相決め部材９を挿入するための第１凹部８ａが形成されている。第１凹部８ａは、固定台板３ａの第１渦巻突起部３ｂが設けられた領域よりも径方向の外側に形成されている。図示した第１凹部８ａは、貫通孔とした構成を示しているが、貫通孔に限定されず、上面が閉塞された構成でもよい。位相決め部材９は、例えばピンである。 Further, as shown in FIG. 2, a phase determining member 9 used for assembling phase is inserted into the fixed base plate 3a of the fixed scroll 3 on the surface facing the frame 5 (the lower surface in the illustrated example). The 1st recessed part 8a for doing is formed. The 1st recessed part 8a is formed in the outer side of radial direction rather than the area | region in which the 1st spiral protrusion part 3b of the fixed base plate 3a was provided. Although the illustrated first recess 8a is shown as a through hole, the first recess 8a is not limited to the through hole, and may have a structure in which the upper surface is closed. The phase determining member 9 is a pin, for example.
　揺動スクロール４は、自転運動を阻止するためのオルダムリング１７により、固定スクロール３に対して自転運動することなく公転運動を行う。なお、揺動台板４ａの第２渦巻突起部４ｂが形成されていない側の面（図示例の場合は下面）は、揺動スクロールスラスト軸受面４０として作用する。また、揺動スクロールスラスト軸受面４０の中心部には、中空円筒形状のボス部４１が設けられている。揺動スクロール４は、ボス部４１に挿入された主軸６の偏心軸部６ａが回転することで、フレーム５のスラスト摺動面上で公転運動する。 The orbiting scroll 4 performs a revolving motion without rotating with respect to the fixed scroll 3 by an Oldham ring 17 for preventing the rotating motion. Note that the surface of the swing base plate 4a on the side where the second spiral protrusion 4b is not formed (the lower surface in the illustrated example) acts as the swing scroll thrust bearing surface 40. A hollow cylindrical boss 41 is provided at the center of the orbiting scroll thrust bearing surface 40. The orbiting scroll 4 revolves on the thrust sliding surface of the frame 5 as the eccentric shaft portion 6a of the main shaft 6 inserted into the boss portion 41 rotates.
　オルダムリング１７は、上方に向かって突出したオルダム爪が揺動スクロール４の揺動スクロールスラスト軸受面４０に形成されたオルダム溝に摺動可能に収納され、下方に向かって突出したオルダム爪がフレーム５に形成されたオルダムキー溝に摺動できるように収納された構成である。 In the Oldham ring 17, an Oldham claw protruding upward is slidably accommodated in an Oldham groove formed in the orbiting scroll thrust bearing surface 40 of the orbiting scroll 4, and the Oldham claw protruding downward is a frame. 5 is configured so as to be slidable in the Oldham keyway formed in 5.
　フレーム５は、図１及び図２に示すように、下方に向かって段階的に先細る円筒状で構成されており、揺動スクロール４を揺動自在に支持するものである。フレーム５の上面には、環状の平坦面が形成されている。平坦面には、バルブ鋼などの鋼板系材料からなるリング状のスラストプレート５０が設けられている。スラストプレート５０は、フレーム５のスラスト摺動面として機能する。また、フレーム５には、平坦面の外周に、アッパーシェル１ｂ側に向かって突き出す突壁部５１が形成されている。突壁部５１の上面が、フレーム５の上端面となる。突壁部５１は、上面がスラストプレート５０の上面と略面一となるように形成されている。なお、揺動スクロール４を支持する側の端面は、図示した突壁部５１の上面であることに限定されず、他の構成部分の上面としてもよい。 As shown in FIGS. 1 and 2, the frame 5 is formed in a cylindrical shape that tapers downward in a stepwise manner, and supports the swing scroll 4 so as to be swingable. An annular flat surface is formed on the upper surface of the frame 5. On the flat surface, a ring-shaped thrust plate 50 made of a steel plate material such as valve steel is provided. The thrust plate 50 functions as a thrust sliding surface of the frame 5. Further, the frame 5 is formed with a protruding wall portion 51 protruding toward the upper shell 1b side on the outer periphery of the flat surface. The upper surface of the projecting wall portion 51 is the upper end surface of the frame 5. The protruding wall 51 is formed so that the upper surface thereof is substantially flush with the upper surface of the thrust plate 50. Note that the end surface on the side that supports the orbiting scroll 4 is not limited to the upper surface of the illustrated protruding wall portion 51, and may be the upper surface of another component.
　フレーム５は、揺動スクロール４を支持する側の端面である突壁部５１の上面と固定台板３ａとの間に目標の間隔Ｓ１をあけて配置されている。つまり、固定スクロール３の固定台板３ａとフレーム５の上端面とを接合しておらず、固定スクロール３とフレーム５とが直接的に接触しない構成である。そして、フレーム５には、第１凹部８ａと対向する位置であって、第１凹部８ａと共通の位相決め部材９を挿入するための第２凹部８ｂが突壁部５１に形成されている。 Frame 5 is spaced S 1 goal between the upper surface of the protruding wall portion 51 is an end on the side that supports the swing scroll 4 and the fixed base plate 3a. That is, the fixed base plate 3a of the fixed scroll 3 and the upper end surface of the frame 5 are not joined, and the fixed scroll 3 and the frame 5 are not in direct contact. In the frame 5, a second recess 8 b is formed in the projecting wall portion 51, which is a position facing the first recess 8 a and into which the phase determining member 9 common to the first recess 8 a is inserted.
　また、図１に示すように、フレーム５の中央部には、電動機７により回転駆動される主軸６を径方向に支持する主軸受６０が形成されている。また、フレーム５には、内外を貫通して形成された排出孔に返油管５２が挿入されて固定されている。返油管５２は、フレーム５の筒内に溜まった潤滑油を油溜め１１に戻すための管である。 As shown in FIG. 1, a main bearing 60 that supports the main shaft 6 that is rotationally driven by the electric motor 7 in the radial direction is formed at the center of the frame 5. An oil return pipe 52 is inserted and fixed to the frame 5 in a discharge hole formed through the inside and outside. The oil return pipe 52 is a pipe for returning the lubricating oil collected in the cylinder of the frame 5 to the oil sump 11.
　電動機７は、本体シェル１の内壁面に焼き嵌め等により固着支持された円環状の固定子７ａと、固定子７ａの内側面に対向して回転可能に取り付けられた回転子７ｂとで構成されている。電動機７は、主軸６を介して連結された圧縮機構部２を駆動させるものである。 The electric motor 7 includes an annular stator 7a that is fixedly supported on the inner wall surface of the main body shell 1 by shrink fitting or the like, and a rotor 7b that is rotatably attached to the inner surface of the stator 7a. ing. The electric motor 7 drives the compression mechanism part 2 connected via the main shaft 6.
　主軸６は、フレーム５の中央部に設けられた主軸受６０と、本体シェル１の下部に溶接等で固着されたサブフレーム６１の中央部に設けられた副軸受６２と、によって回転自在に支持されている。主軸６の上端部には、揺動スクロール４のボス部４１に回転自在に支持される偏心軸部６ａが設けられている。偏心軸部６ａは、回転軸から偏心した偏心軸上で揺動スクロール４に係合している。主軸６は、回転子７ｂの回転に伴って回転し、偏心軸部６ａで揺動スクロール４を旋回させる。なお、サブフレーム６１には、オイルポンプ６１ａが設けられている。このオイルポンプ６１ａで吸引された潤滑油は、主軸６の内部に形成された給油孔６３を介して各摺動部に送られる。 The main shaft 6 is rotatably supported by a main bearing 60 provided in the center portion of the frame 5 and a sub bearing 62 provided in the center portion of the sub frame 61 fixed to the lower portion of the body shell 1 by welding or the like. Has been. An eccentric shaft portion 6 a that is rotatably supported by the boss portion 41 of the orbiting scroll 4 is provided at the upper end portion of the main shaft 6. The eccentric shaft portion 6a is engaged with the orbiting scroll 4 on an eccentric shaft that is eccentric from the rotating shaft. The main shaft 6 rotates with the rotation of the rotor 7b, and the swinging scroll 4 is turned by the eccentric shaft portion 6a. The sub frame 61 is provided with an oil pump 61a. The lubricating oil sucked by the oil pump 61a is sent to each sliding portion through an oil supply hole 63 formed in the main shaft 6.
　また、主軸６には、バランスウェイト付きのスライダ１８が設けられている。バランスウェイトは、揺動運動により発生する揺動スクロール４の遠心力を相殺するために設けられている。バランスウェイトは、揺動スクロール４に働く遠心力の方向と反対側に配置されている。スクロール圧縮機１００は、バランスウェイトによって第２渦巻突起部４ｂが第１渦巻突起部３ｂに押し付けられることを軽減することができる。 The main shaft 6 is provided with a slider 18 with a balance weight. The balance weight is provided to cancel out the centrifugal force of the swing scroll 4 generated by the swing motion. The balance weight is disposed on the side opposite to the direction of the centrifugal force acting on the swing scroll 4. The scroll compressor 100 can reduce the pressing of the second spiral protrusion 4b against the first spiral protrusion 3b by the balance weight.
　スライダ１８は、ボス部４１に回転自在に挿入されている。スライダ１８のスライド面には、偏心軸部６ａが挿入されている。つまり、スライダ１８は、揺動スクロール４と主軸６の偏心軸部６ａとの間に介在され、揺動スクロール４の揺動半径を可変とすると共に、揺動スクロール４を公転運動させるために支承するものである。 The slider 18 is rotatably inserted into the boss portion 41. An eccentric shaft portion 6 a is inserted into the slide surface of the slider 18. That is, the slider 18 is interposed between the orbiting scroll 4 and the eccentric shaft portion 6a of the main shaft 6 so that the orbiting radius of the orbiting scroll 4 can be changed and the orbiting scroll 4 can be revolved. To do.
　次に、実施の形態１のスクロール圧縮機１００の動作について簡潔に説明する。スクロール圧縮機１００は、運転が開始されると、吸入管１２より吸入された吸入冷媒が、フレーム５に設けられた吸入口（図示省略）を通じて圧縮室２０に入る。揺動スクロール４は、電動機７によって回転する主軸６の偏心軸部６ａにより偏心旋回運動を行う。具体的には、揺動スクロール４は、オルダムリング１７によって自転が防止されることで公転運動を行う。これにより、圧縮室２０の容積が次第に小さくなり、冷媒が圧縮される。圧縮された冷媒は、固定台板３ａの吐出ポート１４から高圧室１５に吐出され、吐出管１３を介して本体シェル１の外部へ排出される。 Next, the operation of the scroll compressor 100 of the first embodiment will be briefly described. When the scroll compressor 100 starts operation, the suction refrigerant sucked from the suction pipe 12 enters the compression chamber 20 through a suction port (not shown) provided in the frame 5. The orbiting scroll 4 performs an eccentric turning motion by the eccentric shaft portion 6 a of the main shaft 6 that is rotated by the electric motor 7. Specifically, the orbiting scroll 4 performs a revolving motion by preventing rotation by the Oldham ring 17. Thereby, the volume of the compression chamber 20 becomes small gradually, and a refrigerant | coolant is compressed. The compressed refrigerant is discharged from the discharge port 14 of the fixed base plate 3 a to the high-pressure chamber 15 and discharged to the outside of the main body shell 1 through the discharge pipe 13.
　次に、スクロール圧縮機１００の圧縮室２０の設計制約について説明する。スクロール圧縮機１００は、冷媒を圧縮する圧縮室２０の容積について構造上の限界がある。スクロール圧縮機１００の一般的な構造としては、本体シェル１の内壁面に固着された筒状のフレーム５の内部に圧縮室２０が形成されている。スクロール圧縮機１００は、フレーム５の筒内部に揺動スクロール４が収納されるように設計されるため、物理的な渦巻き容積の限界が発生する。圧縮室２０の容積は、揺動台板４ａに設けた第２渦巻突起部４ｂによって決定される。そのため、揺動台板４ａの外径が小さい場合には、第２渦巻突起部４ｂも小さくなり、圧縮室２０の容積も小さくなる。 Next, design restrictions on the compression chamber 20 of the scroll compressor 100 will be described. The scroll compressor 100 has a structural limit on the volume of the compression chamber 20 that compresses the refrigerant. As a general structure of the scroll compressor 100, a compression chamber 20 is formed inside a cylindrical frame 5 fixed to the inner wall surface of the main body shell 1. Since the scroll compressor 100 is designed so that the orbiting scroll 4 is accommodated inside the cylinder of the frame 5, a physical spiral volume limit is generated. The volume of the compression chamber 20 is determined by the second spiral protrusion 4b provided on the swing base plate 4a. Therefore, when the outer diameter of the swinging base plate 4a is small, the second spiral protrusion 4b is also small, and the volume of the compression chamber 20 is also small.
　ここで、第２渦巻突起部４ｂを大きく設計するためには、揺動台板４ａの外径を大きく設計すればよい。しかし、揺動台板４ａの外径は、フレーム５の筒内部の内径によって決定される。そこで、揺動スクロール４の外径を本体シェル１の内壁の近傍まで最大限大きくすることができるように、固定スクロール３の固定台板３ａとフレーム５の上端面との間に目標の間隔Ｓ１を設けた構成が考えられる。しかし、この場合、固定台板３ａとフレーム５とを接合部材で接合せずに、固定スクロール３を本体シェル１の内壁面に固着させる必要があるので、固定スクロール３とフレーム５との位相精度を確保することが課題であった。 Here, in order to design the second spiral protrusion 4b to be large, the outer diameter of the swing base plate 4a may be designed to be large. However, the outer diameter of the swing base plate 4 a is determined by the inner diameter inside the cylinder of the frame 5. Therefore, a target distance S between the fixed base plate 3a of the fixed scroll 3 and the upper end surface of the frame 5 is set so that the outer diameter of the orbiting scroll 4 can be maximized up to the vicinity of the inner wall of the main body shell 1. A configuration in which 1 is provided is conceivable. However, in this case, it is necessary to fix the fixed scroll 3 to the inner wall surface of the main body shell 1 without bonding the fixed base plate 3a and the frame 5 with a bonding member. It was a problem to secure.
　具体的には、渦巻設計は圧縮部設計であり、固定スクロール３と揺動スクロール４とに設けられた渦巻突起部の噛みあいは、高精度なものが必要である。通常、従来のスクロール圧縮機にも用いられているように位相決めピンによって、渦巻突起部同士の位相出しが行われる。しかしながら、揺動スクロール４は、公転運動するため、固定スクロール３と直接位相決めピンで位相出しが困難である。そのため、一般的な構造は、揺動スクロール４とフレーム５とをオルダムリング１７で係合させ、固定スクロール３とフレーム５とを位相決めピンで固定し、間接的に固定スクロール３と揺動スクロール４の位相出しをする。 Specifically, the spiral design is a compression portion design, and the meshing of the spiral protrusions provided on the fixed scroll 3 and the orbiting scroll 4 needs to be highly accurate. Usually, the phase of the spiral protrusions is phased by a phase determining pin as used in a conventional scroll compressor. However, since the orbiting scroll 4 revolves, it is difficult to phase out the fixed scroll 3 and the direct phasing pin. Therefore, the general structure is that the rocking scroll 4 and the frame 5 are engaged by the Oldham ring 17, the fixed scroll 3 and the frame 5 are fixed by the phasing pin, and indirectly the fixed scroll 3 and the rocking scroll. 4 phase out.
　本体シェル１の内壁面に固定スクロール３を固着する構造の場合、揺動スクロール４とフレーム５の位相出しは、従来通りオルダムリング１７で係合可能である。しかし、固定スクロール３とフレーム５は、直接固定しないため、位相出し方法を従来構造から変更する必要がある。 In the case of a structure in which the fixed scroll 3 is fixed to the inner wall surface of the main body shell 1, the phase shift between the swing scroll 4 and the frame 5 can be engaged with the Oldham ring 17 as usual. However, since the fixed scroll 3 and the frame 5 are not directly fixed, it is necessary to change the phasing method from the conventional structure.
　一般的に、二つの部品の回転位相決めとしては、１ヶ所を支点としてもう１ヶ所で回転位相を決める構造が最も組立しやすい。つまり、２ヶ所で位置決めする構造である。本体シェル１の内壁面に、固定スクロール３とフレーム５をそれぞれ固着させる構造になると、固定スクロール３とフレーム５との間に位相決めピンを２本挿入する従来の手法の適用が難しくなる。固定スクロール３とフレーム５の位相を決めた後、固定スクロール３をフレーム５にボルト締結固定していた従来方法のままでは、２本のピンの中心と、本体シェル１の内壁にならって固着される固定スクロール３の外径中心とを合致させる加工精度が必要になるためである。そこで、固定スクロール３の外周面で本体シェル１と固着する構造を利用し、固定スクロール３の外径の中心を支点とし、回転位相出しをピン１本とする構造、すなわち２ヶ所で位置決めする構造にすれば、加工も組立も容易になる効果が得られる。 In general, the structure for determining the rotational phase of two parts is most easily assembled with the structure in which the rotational phase is determined at one location with a fulcrum as the fulcrum. That is, the structure is positioned at two locations. If the fixed scroll 3 and the frame 5 are fixed to the inner wall surface of the main body shell 1, it becomes difficult to apply the conventional method of inserting two phasing pins between the fixed scroll 3 and the frame 5. After the phase of the fixed scroll 3 and the frame 5 is determined, the conventional method in which the fixed scroll 3 is bolted and fixed to the frame 5 is fixed according to the center of the two pins and the inner wall of the main body shell 1. This is because it is necessary to have machining accuracy that matches the center of the outer diameter of the fixed scroll 3. Therefore, a structure in which the outer peripheral surface of the fixed scroll 3 is fixed to the main body shell 1 is used, a structure in which the center of the outer diameter of the fixed scroll 3 is used as a fulcrum and the rotation phase is set to one pin, that is, a structure in which positioning is performed at two locations. By doing so, an effect of facilitating processing and assembly can be obtained.
　実施の形態１に係るスクロール圧縮機１００では、固定スクロール３が、本体シェル１の内壁面に固着され、フレーム５が揺動スクロール４を支持する側の端面と固定台板３ａとの間に目標の間隔Ｓ１をあけて配置されている。つまり、スクロール圧縮機１００は、固定スクロール３の固定台板３ａとフレーム５の上端面とを接合していない構成としている。したがって、スクロール圧縮機１００は、揺動台板４ａの外径がフレーム５の内径に制約されないので、第２渦巻突起部４ｂの設計スペースとして揺動台板４ａの外径を本体シェル１の内壁近傍まで拡大できる。よって、スクロール圧縮機１００は、圧縮室２０の容積が大きく設計することができ、最大馬力を高めることができる。また、固定スクロール３の固定台板３ａとフレーム５の上端面とを接合していない構成とすることで、固定台板３ａに接合するために設けていたフレーム５の外壁面を省略することができるので、材料費を削減できるし、軽量化を図ることもできる。 In the scroll compressor 100 according to the first embodiment, the fixed scroll 3 is fixed to the inner wall surface of the main body shell 1, and the target is between the end surface on the side where the frame 5 supports the orbiting scroll 4 and the fixed base plate 3 a. They are arranged at intervals S 1 of. That is, the scroll compressor 100 is configured such that the fixed base plate 3 a of the fixed scroll 3 and the upper end surface of the frame 5 are not joined. Therefore, since the outer diameter of the swing base plate 4a is not limited by the inner diameter of the frame 5, the scroll compressor 100 uses the outer diameter of the swing base plate 4a as the design space of the second spiral protrusion 4b. It can be expanded to the vicinity. Therefore, the scroll compressor 100 can be designed so that the volume of the compression chamber 20 is large, and the maximum horsepower can be increased. Further, by adopting a configuration in which the fixed base plate 3a of the fixed scroll 3 and the upper end surface of the frame 5 are not joined, the outer wall surface of the frame 5 provided for joining to the fixed base plate 3a can be omitted. Therefore, the material cost can be reduced and the weight can be reduced.
　また、スクロール圧縮機１００は、固定スクロール３に第１凹部８ａが形成され、フレーム５に第１凹部８ａと対向する位置に第２凹部８ｂが形成されているので、第１凹部８ａと第２凹部８ｂを利用して、例えば共通の位相決め部材９であるピンを挿入することができ、組み立て位相出しが可能となる。つまり、スクロール圧縮機１００は、固定スクロール３とフレーム５との位相精度を確保しつつ、第２渦巻突起部４ｂの設計スペースとして揺動台板４ａの外径を本体シェル１の内壁近傍まで拡大することができるので、圧縮室２０の容積が大きくすることができる。 In the scroll compressor 100, the first recess 8a is formed in the fixed scroll 3, and the second recess 8b is formed in the frame 5 at a position facing the first recess 8a. For example, a pin that is a common phasing member 9 can be inserted by using the concave portion 8b, and assembly phasing can be performed. That is, the scroll compressor 100 expands the outer diameter of the swing base plate 4a to the vicinity of the inner wall of the body shell 1 as a design space for the second spiral protrusion 4b while ensuring the phase accuracy between the fixed scroll 3 and the frame 5. Therefore, the volume of the compression chamber 20 can be increased.
　次に、図２及び図３に基づいて、実施の形態１に係るスクロール圧縮機の製造方法を説明する。図３は、本発明の実施の形態１に係るスクロール圧縮機であって、第１凹部に挿入した位相決め部材を抜き取った状態を示した模式図である。 Next, a method for manufacturing the scroll compressor according to Embodiment 1 will be described with reference to FIGS. FIG. 3 is a schematic diagram illustrating the scroll compressor according to Embodiment 1 of the present invention, in which the phase determining member inserted into the first recess is extracted.
　実施の形態１に係るスクロール圧縮機の製造方法は、図２及び図３に示すように、フレーム５をメインシェル１ａの内壁面に固定するフレーム固定工程と、フレーム固定工程の後に、第１凹部８ａと第２凹部８ｂとに位相決め部材９を挿入して固定スクロール３とフレーム５との位相決めを行う位相決め工程と、位相決め工程の後に、固定台板３ａをメインシェル１ａの内壁面に固定する固定台板固定工程と、固定台板固定工程の後に、位相決め部材９を抜き取る抜き取り工程と、を有する。 As shown in FIGS. 2 and 3, the method for manufacturing the scroll compressor according to Embodiment 1 includes a frame fixing step for fixing the frame 5 to the inner wall surface of the main shell 1a, and a first recess after the frame fixing step. A phasing process for inserting the phasing member 9 into the second recess 8b and phasing the fixed scroll 3 and the frame 5, and after the phasing process, the fixed base plate 3a is attached to the inner wall surface of the main shell 1a. A fixing base plate fixing step for fixing the phase determining member 9 and a sampling step for extracting the phase determining member 9 after the fixing base plate fixing step.
　具体的には、図２に示すように、フレーム５の外周面のうち、径方向における最外部に位置する外周面をメインシェル１ａの内壁面に焼き嵌め等で固着した後、第１凹部８ａと第２凹部８ｂとに位相決め部材９を挿入して、固定スクロール３とフレーム５との位相決めを行う。位相決め部材９は、例えばピンである。そして、固定台板３ａの外周面をメインシェル１ａの内壁面に焼き嵌め等で固着する。このように、固定スクロール３とフレーム５との回転位相決めが行われる。位相決め部材９であるピンは、図３に示すように、固定台板３ａの外周面をメインシェル１ａの内壁面を固着した後、第１凹部８ａ及び第２凹部８ｂから抜き取られる。位相決め部材９を第１凹部８ａ及び第２凹部８ｂから抜き取ることにより、位相決め部材９と揺動スクロール４とが干渉する事態をなくすことができる。なお、位相決め部材９であるピンは、図２に示すように、第１凹部８ａと第２凹部８ｂに挿入したままでよい。 Specifically, as shown in FIG. 2, after the outer peripheral surface of the outer peripheral surface of the frame 5 is fixed to the inner wall surface of the main shell 1a by shrink fitting or the like, the first concave portion 8a is fixed. The phase determining member 9 is inserted into the second recess 8b to determine the phase of the fixed scroll 3 and the frame 5. The phase determining member 9 is a pin, for example. Then, the outer peripheral surface of the fixed base plate 3a is fixed to the inner wall surface of the main shell 1a by shrink fitting or the like. In this manner, the rotational phase between the fixed scroll 3 and the frame 5 is determined. As shown in FIG. 3, the pin which is the phasing member 9 is pulled out from the first recess 8a and the second recess 8b after the outer peripheral surface of the fixed base plate 3a is fixed to the inner wall surface of the main shell 1a. By extracting the phasing member 9 from the first and second recesses 8a and 8b, it is possible to eliminate a situation where the phasing member 9 and the orbiting scroll 4 interfere. In addition, the pin which is the phasing member 9 may be inserted into the first recess 8a and the second recess 8b as shown in FIG.
　したがって、実施の形態１に係るスクロール圧縮機の製造方法は、位相決め部材９を第１凹部８ａ及び第２凹部８ｂから抜き取ることにより、揺動スクロール４を大型化することができる。また、位相決め部材９を第１凹部８ａ及び第２凹部８ｂから抜き取る構成とするときは、第１凹部８ａを固定台板３ａの第１渦巻突起部３ｂが設けられた領域である渦巻歯の内側の領域に形成することができる。なお、位相決め部材９を第１凹部８ａ及び第２凹部８ｂから抜き取る構成とするときは、第１凹部８ａを介して冷媒が流れることを抑制する封止部材（図示を省略）を第１凹部８ａに設けるとよい。封止部材は、位相決め部材９を第２凹部８ｂから抜き取って、第１凹部８ａの内部に留めることで形成してもよい。 Therefore, in the method for manufacturing the scroll compressor according to the first embodiment, the swinging scroll 4 can be enlarged by extracting the phasing member 9 from the first recess 8a and the second recess 8b. Further, when the phase determining member 9 is configured to be extracted from the first concave portion 8a and the second concave portion 8b, the first concave portion 8a is a spiral tooth that is an area where the first spiral protrusion portion 3b of the fixed base plate 3a is provided. It can be formed in the inner region. When the phasing member 9 is configured to be extracted from the first recess 8a and the second recess 8b, a sealing member (not shown) that suppresses the flow of the refrigerant through the first recess 8a is used as the first recess. It is good to provide in 8a. The sealing member may be formed by extracting the phasing member 9 from the second recess 8b and retaining it inside the first recess 8a.
　実施の形態２．
　次に、図４に基づいて本発明の実施の形態２に係るスクロール圧縮機１０１を説明する。図４は、本発明の実施の形態２に係るスクロール圧縮機であって、圧縮機構部の要部を拡大して示した模式図である。なお、実施の形態１で説明したスクロール圧縮機と同一の構成については、同一の符号を付して、その説明を適宜省略する。 Embodiment 2. FIG.
Next, the scroll compressor 101 according to the second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a scroll compressor according to the second embodiment of the present invention, and is a schematic diagram illustrating an enlarged main part of the compression mechanism. In addition, about the structure same as the scroll compressor demonstrated in Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.
　上記したようにスクロール圧縮機１００は、固定台板３ａに第１凹部８ａを形成し、フレーム５に第２凹部８ｂを形成し、第１凹部８ａと第２凹部８ｂに共通の位相決め部材９を挿入することで、固定スクロール３とフレーム５との位相精度を高めることができる。しかし、フレーム５の第２凹部８ｂを形成した上端面と、固定台板３ａとが離れすぎて位相決め部材９の長さが長くなると、位相ずれの距離が増加し、位相精度が低下するおそれがある。その理由は、例えばピンと第１凹部８ａとの掛かり代と隙間が従来と寸法同一の場合、傾斜角は一定となるが、ピンの長さが長くなるほど位相ずれの距離が増加することによる。 As described above, the scroll compressor 100 forms the first recess 8a in the fixed base plate 3a, the second recess 8b in the frame 5, and the phase determining member 9 common to the first recess 8a and the second recess 8b. The phase accuracy between the fixed scroll 3 and the frame 5 can be increased. However, if the upper end surface of the frame 5 in which the second recess 8b is formed and the fixed base plate 3a are too far apart and the length of the phase determining member 9 is increased, the phase shift distance may increase and the phase accuracy may decrease. There is. The reason is that, for example, when the allowance between the pin and the first recess 8a and the gap are the same size as the conventional one, the inclination angle is constant, but the phase shift distance increases as the pin length increases.
　そこで、実施の形態２に係るスクロール圧縮機１０１の固定スクロール３には、固定台板３ａからフレーム５に向かって突き出し、第１凹部８ａが形成されたランド部３０が設けられている。一方、フレーム５には、第１凹部８ａに対向する位置に第２凹部８ｂが形成されている。第１凹部８ａと第２凹部８ｂには、組み立て位相出しに用いられる位相決め部材９としてピンが嵌め込まれる。つまり、スクロール圧縮機１００では、固定台板３ａにランド部３０を設けることによって、位相決め部材９の長さを短くすることができるので、位相ずれを抑えることができ、固定スクロール３とフレーム５との位相精度を高めることができる。 Therefore, the fixed scroll 3 of the scroll compressor 101 according to the second embodiment is provided with a land portion 30 protruding from the fixed base plate 3a toward the frame 5 and having the first recess 8a formed therein. On the other hand, the frame 5 is formed with a second recess 8b at a position facing the first recess 8a. A pin is fitted into the first concave portion 8a and the second concave portion 8b as the phasing member 9 used for assembling phasing. That is, in the scroll compressor 100, by providing the land portion 30 on the fixed base plate 3a, the length of the phasing member 9 can be shortened, so that the phase shift can be suppressed, and the fixed scroll 3 and the frame 5 can be suppressed. And the phase accuracy can be improved.
　また、ランド部３０は、フレーム５の上端面との間に、揺動台板４ａの厚さ以上の間隔Ｓ２をあけて設けられている。つまり、揺動台板４ａの外径は、位相決め部材９に隣接する位置まで拡大させることができる。揺動台板４ａは、揺動スクロール４の公転運動において、ランド部３０とフレーム５との間に一部が常時入り込んだ構成としてもよいし、ランド部３０とフレーム５との間に、一部が少なくとも一公転あたり一回入り込む構成でもよい。よって、スクロール圧縮機１００は、固定スクロール３とフレーム５との位相精度を確保しつつ、第２渦巻突起部４ｂの設計スペースとして揺動台板４ａの外径を本体シェル１の内壁近傍まで拡大することができるので、圧縮室２０の容積が大きくすることができ、最大馬力を高めることができる。 Further, the land portion 30, between the upper end surface of the frame 5, is provided with an interval S 2 or the thickness of the oscillating base plate 4a. That is, the outer diameter of the swing base plate 4 a can be expanded to a position adjacent to the phasing member 9. The swing base plate 4 a may be configured such that a part of the swing base plate 4 is always inserted between the land portion 30 and the frame 5 in the revolving motion of the swing scroll 4. The configuration may be such that the portion enters at least once per revolution. Therefore, the scroll compressor 100 expands the outer diameter of the swing base plate 4a to the vicinity of the inner wall of the main shell 1 as a design space for the second spiral protrusion 4b while ensuring the phase accuracy between the fixed scroll 3 and the frame 5. Therefore, the volume of the compression chamber 20 can be increased, and the maximum horsepower can be increased.
　なお、ランド部３０は、位相決め部材９を設ける部分にのみ設ければ足りるが、固定スクロール３の剛性、及び固定スクロール３を製造する際の加工性を考慮すると、固定スクロール３の外周縁に沿って全周に設けることが望ましい。 The land portion 30 may be provided only in the portion where the phase determining member 9 is provided. However, in consideration of the rigidity of the fixed scroll 3 and the workability when the fixed scroll 3 is manufactured, the land portion 30 is provided on the outer peripheral edge of the fixed scroll 3. It is desirable to provide the entire circumference along.
　次に、図５及び図６に基づいて実施の形態２のスクロール圧縮機１０１の変形例について説明する。図５は、本発明の実施の形態２に係るスクロール圧縮機の変形例であって、圧縮機構部の要部を拡大して示した模式図である。図６は、本発明の実施の形態２に係るスクロール圧縮機の変形例であって、第１凹部及び第２凹部に挿入した位相決め部材を抜き取った状態を示した模式図である。図５に示すスクロール圧縮機１０１は、第１凹部８ａが、固定台板３ａとランド部３０とを貫通する貫通孔とした構成である。つまり、図５に示すスクロール圧縮機１０１では、第１凹部８ａと第２凹部８ｂとに嵌め込まれた位相決め部材９を、固定スクロール３とフレーム５との位相決めを行った後に第１凹部８ａ及び第２凹部８ｂから抜き取ることができる。 Next, a modification of the scroll compressor 101 according to the second embodiment will be described with reference to FIGS. FIG. 5 is a modified example of the scroll compressor according to Embodiment 2 of the present invention, and is a schematic view showing an enlarged main part of the compression mechanism. FIG. 6 is a modification of the scroll compressor according to Embodiment 2 of the present invention, and is a schematic view showing a state where the phase determining member inserted into the first recess and the second recess is extracted. The scroll compressor 101 shown in FIG. 5 has a configuration in which the first recess 8 a is a through hole that penetrates the fixed base plate 3 a and the land portion 30. That is, in the scroll compressor 101 shown in FIG. 5, the phasing member 9 fitted in the first recess 8 a and the second recess 8 b is used to determine the phase of the fixed scroll 3 and the frame 5 and then the first recess 8 a. And it can extract from the 2nd recessed part 8b.
　具体的には、フレーム５の外周縁をメインシェル１ａの内壁面に焼き嵌め等で固着した後、第１凹部８ａと第２凹部８ｂとに位相決め部材９を挿入して、固定スクロール３とフレーム５との位相決めを行う。位相決め部材９は、例えばピン等である。そして、固定台板３ａの外周縁をメインシェル１ａの内壁面に焼き嵌め等で固着した後、図６に示すように、位相決め部材９を第１凹部８ａ及び第２凹部８ｂから抜き取る。このように、固定スクロール３とフレーム５との回転位相決めが行われる。なお、位相決め部材９は、例えば図４に示すように、第１凹部８ａ及び第２凹部８ｂから抜き取らず、挿入したままの状態でもよい。 Specifically, after fixing the outer peripheral edge of the frame 5 to the inner wall surface of the main shell 1a by shrink fitting or the like, the phasing member 9 is inserted into the first recess 8a and the second recess 8b, and the fixed scroll 3 Phase determination with frame 5 is performed. The phase determining member 9 is, for example, a pin. Then, after fixing the outer peripheral edge of the fixed base plate 3a to the inner wall surface of the main shell 1a by shrink fitting or the like, the phasing member 9 is removed from the first recess 8a and the second recess 8b as shown in FIG. In this manner, the rotational phase between the fixed scroll 3 and the frame 5 is determined. For example, as shown in FIG. 4, the phasing member 9 may be kept inserted without being extracted from the first recess 8 a and the second recess 8 b.
　実施の形態３．
　次に、図７に基づいて本発明の実施の形態３に係るスクロール圧縮機１０２を説明する。図７は、本発明の実施の形態３に係るスクロール圧縮機であって、圧縮機構部の要部を拡大して示した模式図である。なお、実施の形態１及び２で説明したスクロール圧縮機と同一の構成については、同一の符号を付して、その説明を適宜省略する。 Embodiment 3 FIG.
Next, the scroll compressor 102 according to the third embodiment of the present invention will be described with reference to FIG. FIG. 7 is a scroll compressor according to Embodiment 3 of the present invention, and is a schematic diagram showing an enlarged main part of the compression mechanism. In addition, about the structure same as the scroll compressor demonstrated in Embodiment 1 and 2, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.
　実施の形態３におけるランド部３０は、フレーム５の上端面との間に、揺動台板４ａの板厚よりも小さい間隔Ｓ３をあけて設けられている。また、揺動スクロール４には、ランド部３０とフレーム５との間に設けられた隙間に入り込む薄厚部４２が形成されている。揺動台板４ａは、揺動スクロール４の公転運動において、ランド部３０とフレーム５との間に薄厚部４２が常時入り込んだ構成としてもよいし、ランド部３０とフレーム５との間に、薄厚部４２が少なくとも一公転あたり一回入り込む構成でもよい。つまり、このスクロール圧縮機１０２では、フレーム５の上端面とランド部３０の下端面とを近接させているので、位相決め部材９の長さを短くすることができ、位相ずれを効果的に抑えて位相精度を高めることができる。また、このスクロール圧縮機１０２では、揺動スクロール４の公転運動においてランド部３０に位置する範囲のみ薄厚部４２とすることで、全体として揺動台板４ａを位相決め部材９に隣接する位置まで拡大させることができる。よって、圧縮室２０の容積を大きくすることができ、最大馬力を高めることができる。 Land portions 30 in the third embodiment, between the upper end surface of the frame 5, is provided at a small spacing S 3 than the thickness of the oscillating base plate 4a. Further, the orbiting scroll 4 is formed with a thin portion 42 that enters a gap provided between the land portion 30 and the frame 5. The swing base plate 4a may have a configuration in which the thin portion 42 is always inserted between the land portion 30 and the frame 5 in the revolving motion of the swing scroll 4, or between the land portion 30 and the frame 5, The thin portion 42 may enter at least once per revolution. That is, in this scroll compressor 102, the upper end surface of the frame 5 and the lower end surface of the land portion 30 are close to each other, so that the length of the phasing member 9 can be shortened and the phase shift is effectively suppressed. Phase accuracy can be improved. Further, in this scroll compressor 102, only the range located in the land portion 30 in the revolving motion of the orbiting scroll 4 is the thin portion 42, so that the orbiting base plate 4 a as a whole is positioned up to a position adjacent to the phasing member 9. Can be enlarged. Therefore, the volume of the compression chamber 20 can be increased and the maximum horsepower can be increased.
　なお、ランド部３０は、位相決め部材９を設ける部分にのみ設ければ足りるが、固定スクロール３の剛性、及び固定スクロール３を製造する際の加工性を考慮すると、固定スクロール３の外周縁に沿って全周に設けることが望ましい。 The land portion 30 may be provided only in the portion where the phase determining member 9 is provided. However, in consideration of the rigidity of the fixed scroll 3 and the workability when manufacturing the fixed scroll 3, It is desirable to provide the entire circumference along.
　実施の形態４．
　次に、図８に基づいて本発明の実施の形態４に係るスクロール圧縮機１０３を説明する。図８は、本発明の実施の形態４に係るスクロール圧縮機であって、圧縮機構部を平面的に示した模式図である。なお、実施の形態１～３で説明したスクロール圧縮機と同一の構成については、同一の符号を付して、その説明を適宜省略する。 Embodiment 4 FIG.
Next, the scroll compressor 103 according to Embodiment 4 of the present invention will be described with reference to FIG. FIG. 8 is a scroll compressor according to the fourth embodiment of the present invention, and is a schematic diagram illustrating the compression mechanism portion in a plan view. The same components as those of the scroll compressor described in the first to third embodiments are denoted by the same reference numerals, and the description thereof is omitted as appropriate.
　一般に、スクロール圧縮機の揺動スクロール４は、揺動台板４ａが、第２渦巻突起部４ｂを立設する部分と、第１渦巻突起部３ｂの公転軌跡となる部分とを有していればよい。つまり、運転時に圧縮機構部２として利用している部分を考えると、揺動台板４ａが平面的に見て略円形である必要がない。ここで、図８に示すように、揺動スクロール４の中心部Ｏと第２渦巻突起部４ｂの外端部４ｃとを結んだ直線をＸ軸とし、揺動台板４ａの中心部Ｏと通り、Ｘ軸と直交する直線をＹ軸とし、Ｘ軸とＹ軸とで４つの象限Ａ～Ｄに仕切る。圧縮機構部２として利用されていない揺動スクロール４の揺動台板４ａは、外端部４ｃを含む象限を第１象限Ａとすると、第１象限Ａに隣接する第２象限Ｂ及び第３象限Ｃである。つまり、揺動スクロール４は、第２象限Ｂ及び第３象限Ｃに切り欠き等があっても、冷媒を圧縮する上で機能的には問題とならない。 In general, the swing scroll 4 of the scroll compressor has a swing base plate 4a having a portion where the second spiral protrusion portion 4b is erected and a portion which becomes the revolution locus of the first spiral protrusion portion 3b. That's fine. In other words, considering the portion used as the compression mechanism unit 2 during operation, the swing base plate 4a does not have to be substantially circular in plan view. Here, as shown in FIG. 8, a straight line connecting the center portion O of the orbiting scroll 4 and the outer end portion 4c of the second spiral protrusion 4b is defined as the X axis, and the center portion O of the orbiting base plate 4a and The straight line perpendicular to the X axis is defined as the Y axis, and the X axis and the Y axis are divided into four quadrants A to D. The swing base plate 4a of the swing scroll 4 that is not used as the compression mechanism section 2 has the second quadrant B and the third quadrant adjacent to the first quadrant A, where the first quadrant A includes the outer end 4c. Quadrant C. That is, the rocking scroll 4 is not functionally problematic in compressing the refrigerant even if the second quadrant B and the third quadrant C are notched.
　そこで、実施の形態４に係るスクロール圧縮機１０３では、図８に示すように、第１象限Ａに隣接する第２象限Ｂ及び第３象限Ｃに位置する揺動台板４ａに、切り欠き部４３と４４を形成した構成としている。そして、ランド部３０は、Ｘ軸とＹ軸とで成るＸＹ平面に投影した場合、第２象限Ｂに位置している。但し、ランド部３０は、Ｘ軸とＹ軸とで成るＸＹ平面に投影した場合、第３象限Ｃに位置してもよい。なお、図示することは省略したが、実施の形態１の構成では、位相決め部材９が、Ｘ軸とＹ軸とで成るＸＹ平面に投影した場合、第２象限Ｂ又は第３象限Ｃに位置しているものとする。 Therefore, in the scroll compressor 103 according to the fourth embodiment, as shown in FIG. 8, the notch portion is formed in the swing base plate 4 a located in the second quadrant B and the third quadrant C adjacent to the first quadrant A. 43 and 44 are formed. The land portion 30 is located in the second quadrant B when projected onto the XY plane composed of the X axis and the Y axis. However, the land portion 30 may be located in the third quadrant C when projected onto the XY plane composed of the X axis and the Y axis. Although illustration is omitted, in the configuration of Embodiment 1, when the phasing member 9 is projected onto the XY plane composed of the X axis and the Y axis, it is positioned in the second quadrant B or the third quadrant C. Suppose you are.
　つまり、実施の形態４に係るスクロール圧縮機１０３では、揺動台板４ａにおける第２渦巻突起部４ｂを立設する部分及び第１渦巻突起部３ｂの公転軌跡となる部分を、第２渦巻突起部４ｂの設計スペースとして本体シェル１の内壁近傍まで拡大できる。よって、スクロール圧縮機１０３は、圧縮室２０の容積を大きくすることができ、最大馬力を高めることができる。 That is, in the scroll compressor 103 according to the fourth embodiment, the part of the swing base plate 4a where the second spiral protrusion part 4b is erected and the part which becomes the revolution locus of the first spiral protrusion part 3b are used as the second spiral protrusion. The design space of the portion 4b can be expanded to the vicinity of the inner wall of the body shell 1. Therefore, the scroll compressor 103 can increase the volume of the compression chamber 20 and can increase the maximum horsepower.
　なお、図８では、第１象限Ａに隣接する第２象限Ｂ及び第３象限Ｃに切り欠き部４３、４４が形成された構成を示したが、第２象限Ｂ及び第３象限Ｃのうち、少なくとも１つの象限に切り欠き部を形成してもよい。この場合、ランド部３０は、形成した切り欠き部に相当する位置に設けられる。 FIG. 8 shows a configuration in which the cutout portions 43 and 44 are formed in the second quadrant B and the third quadrant C adjacent to the first quadrant A. Of the second quadrant B and the third quadrant C, FIG. A notch may be formed in at least one quadrant. In this case, the land portion 30 is provided at a position corresponding to the formed notch portion.
　以上に本発明を実施の形態に基づいて説明したが、本発明は上述した実施の形態の構成に限定されない。例えば、図示したスクロール圧縮機１００の内部構成は、上述した内容に限定されるものではなく、他の構成要素を含んでもよい。また、図９は、位相決め部材として並行キーを使用した構成を示した模式図である。図９に示すように、第２凹部８ｂをキー溝とし、位相決め部材１０を第１凹部８ａ及び第２凹部８ｂに嵌る並行キーとした構成でもよい。並行キーは、ピンに取り付けられ、又はピンと一体的に形成されたものである。並行キーを有することで、１本のピンで位相決めすることができる。なお、位相決め部材１０である並行キーは、説明の便宜上、実施の形態４に基づいた形態を示したが、これに限定されず、実施の形態１～３の構成においても適用できる。要するに、本発明は、その技術的思想を逸脱しない範囲において、当業者が通常に行う設計変更及び応用のバリエーションの範囲を含むものである。 Although the present invention has been described above based on the embodiment, the present invention is not limited to the configuration of the embodiment described above. For example, the illustrated internal configuration of the scroll compressor 100 is not limited to the above-described content, and may include other components. FIG. 9 is a schematic diagram showing a configuration in which a parallel key is used as a phasing member. As shown in FIG. 9, the second recess 8b may be a key groove, and the phase determining member 10 may be a parallel key that fits into the first recess 8a and the second recess 8b. The parallel key is attached to the pin or formed integrally with the pin. Having a parallel key allows phasing with a single pin. The parallel key that is the phase determining member 10 has been described based on the fourth embodiment for convenience of explanation, but is not limited to this, and can be applied to the configurations of the first to third embodiments. In short, the present invention includes a range of design changes and application variations usually made by those skilled in the art without departing from the technical idea thereof.
　１　本体シェル、１ａ　メインシェル、１ｂ　アッパーシェル、１ｃ　ロアシェル、２　圧縮機構部、３　固定スクロール、３ａ　固定台板、３ｂ　第１渦巻突起部、４　揺動スクロール、４ａ　揺動台板、４ｂ　第２渦巻突起部、４ｃ　外端部、５　フレーム、６　主軸、６ａ　偏心軸部、７　電動機、７ａ　固定子、７ｂ　回転子、８ａ　第１凹部、８ｂ　第２凹部、９、１０　位相決め部材、１１　油溜め、１２　吸入管、１３　吐出管、１４　吐出ポート、１５　高圧室、１６　吐出弁、１７　オルダムリング、１８　スライダ、１９　給電部、２０　圧縮室、３０　ランド部、４０　揺動スクロールスラスト軸受面、４１　ボス部、４２　薄厚部、４３、４４　切り欠き部、５０　スラストプレート、５１　突壁、５２　返油管、６０　主軸受、６１　サブフレーム、６１ａ　オイルポンプ、６２　副軸受、６３　給油孔、１００、１０１、１０２　スクロール圧縮機、Ａ　第１象限、Ｂ　第２象限、Ｃ　第３象限、Ｄ　第４象限、Ｓ１、Ｓ２、Ｓ３　間隔。 1 body shell, 1a main shell, 1b upper shell, 1c lower shell, 2 compression mechanism, 3 fixed scroll, 3a fixed base plate, 3b first spiral protrusion, 4 swing scroll, 4a swing base plate, 4b second Spiral projection, 4c Outer end, 5 Frame, 6 Main shaft, 6a Eccentric shaft, 7 Electric motor, 7a Stator, 7b Rotor, 8a First recess, 8b Second recess, 9, 10 Phase determining member, 11 Oil Reservoir, 12 Suction pipe, 13 Discharge pipe, 14 Discharge port, 15 High pressure chamber, 16 Discharge valve, 17 Oldham ring, 18 Slider, 19 Power feeding section, 20 Compression chamber, 30 Land section, 40 Swing scroll thrust bearing surface, 41 Boss part, 42 Thin part, 43, 44 Notch part, 50 Thrust plate, 51 Projection wall, 52 Oil return pipe, 60 Main bearing, 61 Subframe, 61a Oil pump, 2 auxiliary bearing, 63 oil supply hole, 100, 101, 102 scroll compressor, A first quadrant, B second quadrant, C third quadrant, D fourth quadrant, S 1, S 2, S 3 intervals.

Claims (13)

  1. 　第１渦巻突起部が設けられた固定台板を有する固定スクロールと、
    　前記第１渦巻突起部と噛み合う第２渦巻突起部が設けられた揺動台板を有し、前記固定スクロールとの間に冷媒を圧縮する圧縮室を形成する揺動スクロールと、
    　前記揺動スクロールを揺動自在に支持するフレームと、
    　前記固定スクロールと前記揺動スクロールと前記フレームとを収容した本体シェルと、を備え、
    　前記固定スクロールと前記フレームとが、前記本体シェルの内壁面に固着されており、
    　前記固定台板には、前記フレームと対向する側の面に第１凹部が形成され、
    　前記フレームには、前記第１凹部と対向する位置に第２凹部が形成されている、スクロール圧縮機。     A fixed scroll having a fixed base plate provided with a first spiral protrusion;
    A swing scroll having a swing base plate provided with a second spiral protrusion meshing with the first spiral protrusion, and forming a compression chamber for compressing a refrigerant with the fixed scroll;
    A frame for swingably supporting the swing scroll;
    A main body shell containing the fixed scroll, the orbiting scroll, and the frame;
    The fixed scroll and the frame are fixed to the inner wall surface of the main body shell,
    The fixed base plate is formed with a first recess on a surface facing the frame,
    A scroll compressor, wherein the frame has a second recess formed at a position facing the first recess.
  2. 　前記第１凹部は、前記固定台板の前記第１渦巻突起部が設けられた領域よりも径方向の外側に形成されている、請求項１に記載のスクロール圧縮機。 2. The scroll compressor according to claim 1, wherein the first recess is formed on a radially outer side than a region where the first spiral protrusion of the fixed base plate is provided.
  3. 　前記第１凹部と前記第２凹部には、共通の位相決め部材が挿入されている、請求項２に記載のスクロール圧縮機。 The scroll compressor according to claim 2, wherein a common phasing member is inserted into the first recess and the second recess.
  4. 　前記フレームは、前記揺動スクロールを支持する側の端面と前記固定台板との間に目標の間隔をあけて配置されている、請求項１～３のいずれか一項に記載のスクロール圧縮機。 The scroll compressor according to any one of claims 1 to 3, wherein the frame is disposed with a target gap between an end face on a side supporting the swing scroll and the fixed base plate. .
  5. 　前記固定スクロールの前記固定台板は、前記フレームに向かって突き出し、前記第１凹部が形成されたランド部を有しており、
    　前記フレームは、前記揺動スクロールを支持する側の端面と前記ランド部との間に前記目標の間隔をあけて配置されている、請求項４に記載のスクロール圧縮機。     The fixed base plate of the fixed scroll has a land portion protruding toward the frame and having the first recess formed therein,
    5. The scroll compressor according to claim 4, wherein the frame is disposed with the target gap between an end face on a side supporting the swing scroll and the land portion.
  6. 　前記ランド部は、前記フレームとの間に、前記揺動台板の板厚よりも大きい間隔をあけて設けられている、請求項５に記載のスクロール圧縮機。 The scroll compressor according to claim 5, wherein the land portion is provided with a gap larger than a thickness of the swing base plate between the land portion and the frame.
  7. 　前記ランド部は、前記フレームとの間に、前記揺動台板の板厚よりも小さい間隔をあけて設けられており、
    　前記揺動台板には、前記ランド部と前記フレームとの間に設けられた隙間に入り込む薄厚部が形成されている、請求項５に記載のスクロール圧縮機。     The land portion is provided between the frame and a space smaller than the thickness of the swing base plate,
    The scroll compressor according to claim 5, wherein the swing base plate is formed with a thin portion that enters a gap provided between the land portion and the frame.
  8. 　前記揺動台板は、前記揺動スクロールの公転運動において、前記ランド部と前記フレームとの間に一部が常時入り込んだ構成、又は前記揺動スクロールの公転運動において、前記ランド部と前記フレームとの間に、一部が少なくとも一公転あたり一回入り込む構成である、請求項６又は７に記載のスクロール圧縮機。 The swing base plate is configured such that a part of the swing base plate always enters between the land portion and the frame in the revolving motion of the swing scroll, or the land portion and the frame in the revolving motion of the swing scroll. The scroll compressor according to claim 6 or 7, wherein a part of the scroll compressor enters at least once per revolution.
  9. 　前記揺動台板の中心部と前記第２渦巻突起部の外端部とを結んだ直線をＸ軸とし、前記揺動台板の中心部を通り、Ｘ軸と直交する直線をＹ軸とし、Ｘ軸とＹ軸とで４つの象限に仕切り、前記第２渦巻突起部の外端部を含む象限を第１象限とすると、前記第１象限に隣接する第２象限及び第３象限のうち、少なくとも１つの象限に位置する前記揺動台板に切り欠き部が形成されている、請求項６～８のいずれか一項に記載のスクロール圧縮機。 A straight line connecting the central part of the swing base plate and the outer end of the second spiral protrusion is defined as an X axis, and a straight line passing through the central part of the swing base plate and perpendicular to the X axis is defined as a Y axis. When the quadrant including the outer end portion of the second spiral protrusion is defined as the first quadrant, the second quadrant and the third quadrant adjacent to the first quadrant The scroll compressor according to any one of claims 6 to 8, wherein a notch is formed in the swing base plate located in at least one quadrant.
  10. 　前記ランド部は、Ｘ軸とＹ軸とで成るＸＹ平面に投影した場合、前記第２象限又は前記第３象限に位置している、請求項９に記載のスクロール圧縮機。 The scroll compressor according to claim 9, wherein the land portion is located in the second quadrant or the third quadrant when projected onto an XY plane composed of an X axis and a Y axis.
  11. 　前記第１凹部は、前記固定台板を貫通する貫通孔である、請求項１～１０のいずれか一項に記載のスクロール圧縮機。 The scroll compressor according to any one of claims 1 to 10, wherein the first recess is a through-hole penetrating the fixed base plate.
  12. 　前記本体シェルは、
    　円筒状のメインシェルと、
    　前記メインシェルの上面開口を塞ぐアッパーシェルと、
    　前記メインシェルの下面開口を塞ぐロアシェルと、を有し、
    　前記固定スクロールと前記フレームとが、前記メインシェルの内壁面に固着されている、請求項１～１１のいずれか一項に記載のスクロール圧縮機。     The body shell is
    A cylindrical main shell;
    An upper shell that closes an upper surface opening of the main shell;
    A lower shell that closes the lower surface opening of the main shell,
    The scroll compressor according to any one of claims 1 to 11, wherein the fixed scroll and the frame are fixed to an inner wall surface of the main shell.
  13. 　請求項１に記載のスクロール圧縮機の製造方法であって、
    　前記フレームを前記本体シェルの内壁面に固定する工程と、
    　前記第１凹部と前記第２凹部とに位相決め部材を挿入して前記固定スクロールと前記フレームとの位相決めを行う工程と、
    　前記固定台板を前記本体シェルの内壁面に固定する工程と、
    　前記位相決め部材を前記第１凹部と前記第２凹部から抜き取る工程と、を有する、スクロール圧縮機の製造方法。     It is a manufacturing method of the scroll compressor according to claim 1,
    Fixing the frame to the inner wall surface of the body shell;
    Inserting a phasing member into the first recess and the second recess to phase the stationary scroll and the frame;
    Fixing the fixed base plate to the inner wall surface of the body shell;
    A method of manufacturing a scroll compressor, comprising: extracting the phasing member from the first recess and the second recess.
PCT/JP2018/017260 2018-04-27 2018-04-27 Scroll compressor and method for manufacturing same WO2019207783A1 (en)

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US6056524A (en) * 1997-12-12 2000-05-02 Scroll Technologies Scroll compressor assembly
WO2005038254A2 (en) * 2003-10-17 2005-04-28 Matsushita Electric Ind Co Ltd Scroll compressor
US20060159579A1 (en) * 2005-01-20 2006-07-20 Skinner Robin G Motor-compressor unit mounting arrangement for compressors
JP2011047368A (en) * 2009-08-28 2011-03-10 Sanyo Electric Co Ltd Scroll compressor
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Publication number Priority date Publication date Assignee Title
DE112021005945T5 (en) 2020-11-10 2023-09-07 Mitsubishi Electric Corporation Scroll compressor and method of assembling a scroll compressor

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