EP3480467B1 - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
- Publication number
- EP3480467B1 EP3480467B1 EP17876515.2A EP17876515A EP3480467B1 EP 3480467 B1 EP3480467 B1 EP 3480467B1 EP 17876515 A EP17876515 A EP 17876515A EP 3480467 B1 EP3480467 B1 EP 3480467B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- bolts
- thrust plate
- scroll
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000000078 claw Anatomy 0.000 claims description 47
- 230000002093 peripheral effect Effects 0.000 claims description 33
- 238000003780 insertion Methods 0.000 claims description 19
- 230000037431 insertion Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 description 10
- 238000000638 solvent extraction Methods 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
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
- 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
- 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
-
- 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
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0253—Details concerning the base
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
Definitions
- the present invention relates to a scroll compressor.
- Scroll compressors have a compressor body including a fixed scroll and an orbiting scroll.
- the compressor body includes a compression chamber formed by the orbiting scroll meshing with the fixed scroll.
- the scroll compressors compress the fluid within the compression chamber by revolving and driving the orbiting scroll with respect to the fixed scroll.
- Such scroll compressors have a ring-like thrust plate as a member that suppresses seizure resulting from sliding of the orbiting scroll (for example, refer to PTL 1).
- PTL 1 discloses a configuration in which the orbiting scroll is provided with a ring-like recessed portion that houses a portion of a thrust plate, and the position of the thrust plate is restricted by interposing the thrust plate between the orbiting scroll and the front housing (frame).
- PTL 2 discloses a thrust plate formed of an abrasion-resistant material.
- PTL 3 discloses a minor gap on an inner periphery side of a thrust bearing.
- PTL 4 discloses a scroll-type compressor used for a vehicle air conditioner which includes an orbiting scroll, a stationary scroll, and a thrust plate.
- PTL 1 has a configuration in which the thrust plate is interposed between the orbiting scroll, which is revolved and driven with respect to the fixed scroll, and the front housing. For this reason, if a centrifugal force becomes large due to the orbiting of the orbiting scroll and a thrust load is increased, the position of the thrust plate deviates from the recessed portion and the thrust plate and the front housing interfere with each other. Therefore, there is a possibility that the thrust plate and its peripheral components (components disposed around the thrust plate) may be damaged.
- an object of the invention is to provide a scroll compressor that can suppress damage to a thrust plate and its peripheral components.
- a scroll compressor related to an aspect of the invention includes a housing that has a cylindrical rear housing, and a front housing including a plate placement surface; a fixed scroll that is provided within the rear housing and fixed to the rear housing; an orbiting scroll that is provided within the rear housing, partitions a compression chamber between the orbiting scroll and the fixed scroll by meshing the fixed scroll, and is revolved and driven around the fixed scroll; a ring-like thrust plate that is disposed between an end plate, in the orbiting scroll, disposed on a side opposite to a side where the fixed scroll is provided and the plate placement surface of the front housing; a plurality of bolts that are fastened to a plate placement part, of the front housing, which partitions the plate placement surface and that restricts a position of the thrust plate with respect to the plate placement part, and the plurality of bolts each include a head part, and a shaft part having one end connected to the head part, and at least a portion of the head part is disposed to protrude from the plate placement surface
- the plurality of bolts that are fastened to the plate placement part partitioning the plate placement surface, in the front housing which does not turn, and that restrict the position of the thrust plate with respect to the plate placement part, it is possible to suppress the displacement of the thrust plate even in case where a centrifugal force becomes large due to the orbiting of the orbiting scroll and a thrust load is increased.
- the thrust plate by configuring the thrust plate so as not to be directly fastened with the bolts, occurrence of distortion or deformation of the thrust plate resulting from the bolt fastening is suppressed. Thus, the reliability of the scroll compressor can be improved.
- the head part of each of the plurality of bolts may be disposed outside the orbiting scroll, and an outer peripheral part of the end plate may be provided with a first cutout part capable of housing the head part when the orbiting scroll is revolved.
- the first cutout part having such a configuration at the outer peripheral part of the end plate, the contact between the outer peripheral part of the orbiting scroll and the head parts of the bolts when the orbiting scroll is revolved can be suppressed.
- a material of each of the plurality of bolts may be a material harder than a material of the orbiting scroll.
- the rear housing may include a suction port that suctions a fluid within the rear housing, and the plurality of bolts may be provided at positions separated from the suction port in a circumferential direction of the plate placement part.
- the fluid does not easily collide against the head parts of the bolts. Accordingly, occurrence of turbulence in the airflow of the fluid within the housing can be suppressed.
- the plate placement part of the front housing may be provided with bolt holes to which the plurality of bolts are fastened, and each of the plurality of bolts may include a protruding part that is provided at the other end of a shaft part of each of the plurality of bolts, is made to have an outer diameter smaller than an outer diameter of the shaft part, and protrudes in an extending direction of the shaft part.
- the protruding part which has an outer diameter smaller than the outer diameter of the shaft part and protrudes in the extending direction of the shaft part, at the other end of the shaft part of each of the plurality of bolts, it is possible to make the bolts independent from the bolt holes by inserting the protruding part into each bolt hole when the bolts are fastened to the bolt holes. Accordingly, the work of fastening the bolts to the plurality of bolt holes can be easily performed.
- the scroll compressor according to the aspect of the invention may further include a rotation suppressing member that is provided between the orbiting scroll and the thrust plate, suppresses rotation of the orbiting scroll, and includes a plurality of engaging projections
- the thrust plate may include a plurality of insertion cutout parts into which the engaging projections are inserted, and the plurality of through-holes may be provided at positions separated from the plurality of insertion cutout parts.
- the front housing may include a plurality of second cutout parts that are provided in the outer peripheral part of the plate placement part in a circumferential direction, and are formed by cutting out the plate placement part corresponding to the plate placement surface
- the thrust plate may have claw parts that are provided in the outer peripheral part of the thrust plate in the circumferential direction and are respectively disposed within the plurality of second cutout parts in a bent state.
- the plurality of claw parts may be provided at positions different from formation positions of a plurality of through-holes provided in the thrust plate in a radial direction of the thrust plate.
- the plurality of claw parts may be disposed outside the formation positions of a plurality of through-holes provided in the thrust plate.
- the plurality of claw parts are configured by bending the thrust plate that is a thin plate. For this reason, the claw parts may be damaged if the claw parts receive a large thrust load.
- the thrust plate abuts against the plurality of bolts disposed inside the plurality of claw parts even in case where a large thrust load is applied to the thrust plate. Accordingly, since it is possible to reduce the thrust load in the outer peripheral part of the thrust plate. Accordingly, the plurality of claw parts do not receive a large thrust load. Hence, the displacement of the thrust plate can be further suppressed while suppressing damage to the plurality of claw parts.
- a first clearance formed between a head part of each of the bolts and each of through-holes of the thrust plate may be smaller than a second clearance formed between a position where the thrust plate is bent and each of the second cutout parts.
- the portions of the thrust plate that partition the through-holes, and the bolts are brought into contact with each other when the thrust plate is displaced. Accordingly, it is possible to suppress the collision of the plurality of claw parts against corners of the second cutout parts. Accordingly, damage to the claw parts resulting from the claw parts colliding against the corners of the second cutout parts can be suppressed.
- FIG. 1 illustrated in Fig. 1 represents an axis (hereinafter referred to as "an axis O1") of a drive shaft 14.
- Fig. 2 is a view of a plate placement part 42, a thrust plate 27, a bolt 12, and a rear housing 32, which are illustrated in Fig. 1 , as seen from A.
- the rear housing 32 is illustrated in a section.
- E illustrated in Fig. 2 represents a circumferential direction (hereinafter referred to as "a circumferential direction E”) of the plate placement part 42.
- FIG. 2 the same components as those of the structural body illustrated in Figs. 1 and 3 are denoted by the same reference signs. Additionally, for convenience of description, an end plate 51A (refer to Fig. 1 ), which is not illustrated in Fig. 2 , is illustrated in Fig. 3 .
- the scroll compressor 10 has a housing 11, a plurality of the bolts 12, a main bearing 13, the drive shaft 14, a sub-bearing 15, a lip seal 17, a driven crank mechanism 19, a compressor body 21, a rotation suppressing member 23, and the thrust plate 27.
- the housing 11 has a sealed structure and has the rear housing 32 and a front housing 34.
- the rear housing 32 is a cylindrical cup-shaped member. One side of the rear housing 32 is an open end.
- the rear housing 32 has a suction port 35 for introducing a fluid into the housing 11 from the outside of the housing 11.
- the front housing 34 is provided on the open end side of the rear housing 32 so as to block the open end of the rear housing 32.
- the front housing 34 has a first housing part 36 and a second housing part 37.
- the first housing part 36 is fitted to the rear housing 32 via a seal member (for example, an O-ring or the like) on the open end side of the rear housing 32.
- the first housing part 36 has a main-bearing housing part 41 and the plate placement part 42.
- the main-bearing housing part 41 has a space capable of housing the main bearing 13 therein.
- the plate placement part 42 is disposed between the main-bearing housing part 41 and an orbiting scroll 51 in the axis O 1 .
- the plate placement part 42 protrudes in a direction toward the orbiting scroll 51 from the main-bearing housing part 41 located outside the main bearing 13.
- the shape of the plate placement part 42 is a ring shape.
- the plate placement part 42 has a plate placement surface 42a that is a plane that faces the orbiting scroll 51.
- the plate placement surface 42a is a ring-like flat plane.
- the thrust plate 27 is disposed on the plate placement surface 42a.
- the plate placement part 42 has a plurality of (for example, two as an example, in the case of Fig. 2 ) and bolt holes 42A and a plurality of cutout grooves 42B.
- the bolts 12 are respectively fastened to the plurality of bolt holes 42A. It is preferable that the plurality of bolt holes 42A are provided, for example, at positions separated from the suction port 35 in the circumferential direction E of the plate placement part 42.
- the two bolt holes 42A may be disposed to face each other with the axis O 1 interposed therebetween.
- the position of the thrust plate 27 with respect to the plate placement part 42 can be firmly restricted using the two bolts 12.
- the number of bolt holes 42A may be plural and is not limited to two.
- the cutout grooves 42B are formed by being cut out in portions of an inner peripheral part of the plate placement surface 42a.
- the plurality of (two as an example, in the case of Fig. 2 ) cutout grooves 42B are disposed in the circumferential direction of the plate placement part 42. As illustrated in Fig. 2 , in case where two cutout grooves 42B are provided, the cutout grooves 42B may be disposed to face each other with the axis O 1 interposed therebetween.
- Each of the plurality of bolts 12 has a head part 12A, and a shaft part 12B having one end connected to the head part 12A.
- the plurality of bolts 12 are provided at the plate placement part 42.
- the head parts 12A are fastened to the two bolt holes 42A in a state where lower surfaces 12Aa of the bolts 12 are in contact with the plate placement surface 42a. Accordingly, the entire head parts 12A protrude from the plate placement surface 42a.
- the plurality of bolts 12 are disposed in an outer peripheral part of the thrust plate 27 in a circumferential direction.
- the head parts 12A of the bolts 12 are disposing within through-holes 64 (to be described below) of the thrust plate 27, so that when the thrust plate 27 is displaced, the thrust plate 27 partitioning the through-holes 64 abuts against the head parts, thereby suppressing the displacement of the thrust plate 27.
- the plurality of bolts 12 may be provided, for example, at positions separated from the suction port 35 in the circumferential direction of the plate placement part 42.
- the second housing part 37 is formed integrally with the first housing part 36 such that the first housing part 36 is disposed between the second housing part 37 and the orbiting scroll 51.
- the second housing part 37 is a tubular member extends in the direction of the axis O 1 , and both ends thereof are open ends.
- the outer diameter and the inner diameter of the second housing part 37 are configured so as to be smaller than the outer diameter and the inner diameter of the main-bearing housing part 41.
- the main bearing 13 has an outer ring 13A, an inner ring 13B, and a plurality of rolling elements 13C.
- the outer ring 13A is fixed to the main-bearing housing part 41.
- the inner ring 13B is fixed to an outer peripheral part of a base end part 14A of the drive shaft 14.
- the plurality of rolling elements 13C are disposed between the outer ring 13A and the inner ring 13B.
- the drive shaft 14 extends in the direction of the axis O 1 , and has the base end part 14A, a tip part 14B, and a crankpin 14C.
- the drive shaft 14 passes through the second housing part 37 from the inside of the housing 11. A portion of the tip part 14B of the drive shaft 14 is housed within the second housing part 37 in a state where a gap allowing the sub-bearing 15 to be disposed therein is interposed between the tip part and the second housing part 37.
- the base end part 14A is larger in diameter than the tip part 14B.
- the crankpin 14C is provided at the base end part 14A located on the side opposite to the side where the tip part 14B is disposed.
- the crankpin 14C is disposed at a position that is eccentric by a predetermined dimension with respect to the axis O 1 .
- the sub-bearing 15 is provided between the second housing part 37 and a portion of the tip part 14B of the drive shaft 14.
- the sub-bearing 15 has an outer ring 15A, an inner ring 15B, and a plurality of rolling elements 15C.
- the outer ring 15A is fixed inside the second housing part 37.
- the inner ring 15B is fixed to a partial outer peripheral part of the tip part 14B of the drive shaft 14.
- the plurality of rolling elements 15C are disposed between the outer ring 15A and the inner ring 15B.
- the sub-bearing 15 rotatably supports the drive shaft 14 together with the main bearing 13.
- the lip seal 17 is provided on an inner wall of the second housing part 37 located closer to the base end part 14A side of the drive shaft 14 than the sub-bearing 15.
- the lip seal 17 abuts against an outer peripheral surface of the drive shaft 14.
- the lip seal 17 is a seal member for maintaining the airtightness within the housing 11 (for preventing entering of the air outside the housing 11) .
- the driven crank mechanism 19 has a drive bush 46 and a turning bearing 47.
- the drive bush 46 houses the crankpin 14C and is fixed to the outside of the crankpin 14C.
- the turning bearing 47 is provided outside the drive bush 46.
- the compressor body 21 is housed within the housing 11 and has a fixed scroll 49 and the orbiting scroll 51.
- the fixed scroll 49 has an end plate 49A and a wrap part 49B.
- the end plate 49A is orthogonal to the axis O 1 .
- the end plate 49A is disposed to face the front housing 34 via the orbiting scroll 51 in the direction of the axis O 1 .
- the end plate 49A is orthogonal to the axis O 1 and has one surface 49Aa that faces the orbiting scroll 51.
- the end plate 49A of the fixed scroll 49 is fixed to the rear housing 32 with bolts or the like.
- the wrap part 49B has a spiral shape and is provided on the one surface 49Aa of the end plate 49A.
- the wrap part 49B is erected in the direction of the axis O 1 .
- the orbiting scroll 51 is disposed between the front housing 34 and the fixed scroll 49.
- the orbiting scroll 51 has the end plate 51A, a wrap part 51B, and a boss part 51C.
- the end plate 51A is orthogonal to the axis O 1 .
- the end plate 51A has one surface 51Aa that faces the one surface 49Aa of the fixed scroll 49, the other surface 51Ab, and a first cutout part 51Ac.
- the one surface 51Aa is in contact with an inner peripheral part of the thrust plate 27 and is disposed inside positions where the head parts 12A of the plurality of bolts 12 are provided.
- the other surface 51Ab is disposed on the side opposite to the one surface 51Aa and is orthogonal to the axis O 1 .
- the other surface 51Ab faces the driven crank mechanism 19.
- the first cutout part 51Ac is provided at an outer peripheral part of the end plate 51A so as to be capable of housing the head parts 12A of the bolts 12 when the orbiting scroll 51 is revolved.
- the first cutout part 51Ac having such a configuration at the outer peripheral part of the end plate 51A, the contact between the outer peripheral part of the orbiting scroll 51 and the head parts 12A of the bolts 12 when the orbiting scroll 51 is revolved can be suppressed.
- the wrap part 51B has a spiral shape and is provided on the one surface 51Aa of the end plate 51A.
- the wrap part 51B is erected in the direction of the axis O 1 (a direction toward the end plate 49A).
- the wrap part 51B meshes with the wrap part 49B. Accordingly, a compression chamber 21A that compresses the fluid is partitioned between the fixed scroll 49 and the orbiting scroll 51.
- the boss part 51C is provided on the other surface 51Ab of the end plate 51A.
- the boss part 51C protrudes in a direction toward the front housing 34 from the other surface 51Ab of the end plate 51A.
- the boss part 51C houses a portion of the driven crank mechanism 19.
- the boss part 51C is coupled to the crankpin 14C via the driven crank mechanism 19.
- the orbiting scroll 51 is configured to be capable of being revolved and driven with respect to the fixed scroll 49.
- a material harder than the material of the orbiting scroll 51 may be used.
- FIG. 4 the rotation suppressing member 23 as seen in a plan view from the front housing 34 side is illustrated. Additionally, in Fig. 4 , an Oldham ring is illustrated as an example of the rotation suppressing member 23.
- the rotation suppressing member 23 is provided between the plate placement part 42 and the orbiting scroll 51.
- the rotation suppressing member 23 has a ring-like member 55, first engaging projections 56, and second engaging projections 57.
- the ring-like member 55 has a surface in contact with the end plate 51A of the orbiting scroll 51 and a surface 55a disposed on the side opposite to this surface.
- the surface 55a is a surface that faces the front housing 34.
- the first engaging projections 56 are provided by the same number as that of the cutout grooves 42B on the surface 55a of the ring-like member 55.
- the first engaging projections 56 protrude in a direction orthogonal to the surface 55a of the ring-like member 55.
- the first engaging projections 56 are disposed at positions where the projections are insertable into the cutout grooves 42B.
- a plurality of (two as an example in the case of Fig. 3 ) the second engaging projections 57 are provided on the surface 55a of the ring-like member 55 located on the side opposite to the surface 55a.
- the second engaging projections 57 protrude from the surface 55a of the ring-like member 55 located on the side opposite to the surface 55a.
- the second engaging projections 57 have a shape wider than the ring-like member 55.
- the second engaging projections 57 are inserted into groove parts formed in the end plate 51A.
- the rotation suppressing member 23 having the above configuration suppresses the rotation of the orbiting scroll 51.
- Oldham ring has been described as an example of the rotation suppressing member 23 in Fig. 4 , for example, a pin/link type rotation suppressing member, or other types of rotation suppressing members may be used.
- the thrust plate 27 is a thin metallic plate and is provided between the plate placement part 42 and the orbiting scroll 51.
- the thrust plate 27 has a plate body 61, a plurality of insertion cutout parts 62, and a plurality of through-holes 64.
- the plate body 61 is a ring-like plate material. In the plate body 61, one entire overall surface is in contact with the plate placement surface 42a, and an inner peripheral part of the other surface is in contact with the end plate 51A of the orbiting scroll 51. Accordingly, the outer peripheral part of the plate body 61 is exposed from the end plate 51A.
- the plurality of (two as an example in the case of Fig. 2 ) insertion cutout parts 62 are provided at an inner peripheral part of the plate body 61.
- the plurality of insertion cutout parts 62 are provided so as to correspond to the formation positions of the cutout grooves 42B.
- Portions of the first engaging projections 56 are inserted into the plurality of insertion cutout parts 62.
- the positions of the plate placement part 42, the thrust plate 27, and the rotation suppressing member 23 are restricted.
- two insertion cutout parts 62 may be disposed so as to face each other with the axis O 1 interposed therebetween.
- the number of insertion cutout parts 62 may be plural and is not limited to two.
- the plurality of (two as an example in the case of Fig. 2 ) 64 are circular holes formed by passing through the outer peripheral part of the plate body 61.
- the diameter of the plurality of through-holes 64 is set to such a size that the through-holes allow the head parts 12A of the bolts 12 to pass therethrough.
- a first clearance CL 1 is provided between the plurality of through-holes 64 and the head parts 12A of the bolts 12.
- the plurality of through-holes 64 surround the head parts 12A of the bolts 12 via the first clearance CL 1 .
- the thrust plate 27 including the plurality of through-holes 64 having such a size that the head parts 12A of the bolts 12, which are disposed on the plate placement surface 42a of the plate placement part 42 and protrude from the plate placement surface 42a, can pass through the through-holes, it is possible to dispose the thrust plate 27 on the plate placement surface 42a in a state where the plurality of bolts 12 are fastened to the plate placement part 42, without detaching the plurality of bolts 12 fastened to the plate placement part 42 from the plate placement part 42.
- positional restriction of the thrust plate 27 can be enhanced due to the fitting between the head parts 12A of the bolts 12 and the through-holes 64 of the thrust plate 27.
- the thrust plate 27 by configuring the thrust plate 27 so as not to be directly fastened with the bolts 12, occurrence of distortion or deformation of the thrust plate 27 resulting from the bolt fastening is suppressed. Thus, the reliability of the scroll compressor 10 can be improved.
- the plurality of through-holes 64 may be provided, for example, at positions separated from the plurality of insertion cutout parts 62.
- the orbiting scroll 51 is separated from the thrust plate 27 and replacement work (maintenance) of the thrust plate 27 is performed, in a state where the plurality of bolts 12 are fastened to the bolt holes 42A of the plate placement part 42.
- the scroll compressor 10 of the first embodiment by having the plurality of bolts 12 that are fastened to the plate placement part 42 partitioning the plate placement surface 42a, in the front housing 34 which does not turn, and that restrict the position of the thrust plate 27 with respect to the plate placement part 42, it is possible to suppress the displacement of the thrust plate 27 even in case where a centrifugal force becomes large due to the orbiting of the orbiting scroll 51 and a thrust load is increased.
- a bolt 67 is configured to each bolt 12 except that the configuration of each bolt 12 illustrated in Fig. 3 is further provided with a protruding part 68. A plurality of the bolts 67 are fastened to the bolt holes 42A. The protruding part 68 is provided at the other end of the shaft part 12B.
- the protruding part 68 protrudes in an extending direction of the shaft part 12B.
- the outer diameter of the protruding part 68 is configured so as to be smaller than the outer diameter of the shaft part 12B.
- the protruding part 68 which has an outer diameter smaller than the outer diameter of the shaft part 12B and protrudes in the extending direction of the shaft part 12B, at the other end of the shaft part 12B of each of the plurality of bolts 67, it is possible to make the bolts 67 independent from the bolt holes 42A by inserting the protruding part 68 into each bolt hole 42A when the bolts 67 are fastened to the bolt holes 42A. Accordingly, the work of fastening the bolts 67 to the plurality of bolt holes 42A can be easily performed.
- FIG. 6 a scroll compressor 70 related to a modification example of the first embodiment will be described with reference to Fig. 6 .
- Fig. 6 some of constituent elements of the scroll compressor 70 are illustrated.
- Fig. 6 the same components as those of the structural body illustrated in Fig. 3 are denoted by the same reference signs.
- the scroll compressor 70 is configured similarly to the scroll compressor 10 except having bolt holes 71 instead of the bolt holes 42A that constitute the scroll compressor 10 of the first embodiment.
- Each bolt hole 71 has a head part housing part 71A and a shaft part hole 71B.
- the head part housing part 71A is provided on the plate placement surface 42a side of the plate placement part 42.
- the head part housing part 71A houses a portion of the head part 12A of each bolt 12.
- the shaft part hole 71B is a hole threadedly engaged with the shaft part 12B of the bolt 12 and is formed integrally with the head part housing part 71A.
- a width W of the first cutout part 51Ac (the width in the direction of the axis O 1 illustrated in Fig. 1 ) can be made smaller as compared to a structural body (a structural body in which the entire head parts 12A protrude from the plate placement surface 42a) illustrated in Fig. 3 .
- FIG. 7 A scroll compressor 75 of a second embodiment will be described with reference to Figs. 3 , 7 , and 8 .
- Fig. 7 only principal parts of the scroll compressor 75 are schematically illustrated.
- Fig. 7 the same components as those of the structural body illustrated in Fig. 2 are denoted by the same reference signs.
- Fig. 8 the same components as those of the structural body illustrated in Fig. 1 and 7 are denoted by the same reference signs.
- the scroll compressor 75 of the second embodiment is configured similarly to the scroll compressor 10 except that the plate placement part 42 described in the first embodiment is provided with a plurality of second cutout parts 76 and a thrust plate 78 is provided instead of the thrust plate 27 that constitutes the scroll compressor 10 of the first embodiment.
- the plurality of second cutout parts 76 are provided in the outer peripheral part of the plate placement part 42 that partitions the plate placement surface 42a, in the circumferential direction.
- Each second cutout part 76 has a surface 76a orthogonal to the plate placement surface 42a.
- the second cutout part 76 can be disposed, for example, between a bolt 12 and a cutout groove 42B.
- the second cutout part 76 can be disposed at a position where an insertion cutout part 62 and a through-hole 64 are not provided.
- the thrust plate 78 is configured similarly to the scroll compressor 10 described in the first embodiment except for having a plurality of claw parts 79.
- the plurality of claw parts 79 are configured such that portions protruding from an outer peripheral edge of the plate body 61 are bent toward the second cutout parts 76 side.
- the claw parts 79 are disposed within the plurality of second cutout parts 76.
- the plurality of claw parts 79 may be disposed, for example, outside the formation positions of the plurality of through-holes 64 provided in the thrust plate 78.
- the plurality of claw parts 79 are configured by bending the thrust plate 78 that is a thin metallic plate. For this reason, the claw parts 79 may be damaged if the claw parts receive a large thrust load.
- the thrust plate 78 abuts against the plurality of bolts 12 disposed inside the plurality of claw parts 79 even in case where a large thrust load is applied to the thrust plate 78. Accordingly, since it is possible to reduce the thrust load in the outer peripheral part of the thrust plate 78, the plurality of claw parts 79 do not receive a large thrust load.
- the displacement of the thrust plate 78 can be further suppressed while suppressing damage to the plurality of claw parts 79.
- the plurality of claw parts 79 may be provided at positions different from the formation positions of the plurality of through-holes 64 provided in the thrust plate 78 in a radial direction of the thrust plate 78.
- a second clearance CL 2 is formed between the surface 76a of a second cutout part 76 and a claw part 79.
- the first clearance CL 1 described earlier may be, for example, made smaller than the second clearance CL 2 .
- the portions of the thrust plate 78 that partition the through-holes 64, and the bolts 12 are brought into contact with each other when the thrust plate 78 is displaced. Accordingly, it is possible to suppress the collision of the claw parts 79 against corners 76A of the second cutout parts 76. Accordingly, damage to the claw parts 79 resulting from the claw parts 79 colliding against the corners 76A of the second cutout parts 76 can be suppressed.
- the plurality of claw parts 79 disposed in the outer peripheral edge of the thrust plate 78 in the circumferential direction are provided in addition to the plurality of bolts 12 that restrict the position of the thrust plate 78 with respect to the plate placement part 42. Accordingly, the displacement of the thrust plate 78 can be further suppressed while suppressing the damage to the plurality of claw parts 79.
- the bolts 67 illustrated in Fig. 5 may be used instead of the plurality of bolts 12.
- the bolt holes 71 illustrated in Fig. 6 may be used.
- the invention is applicable to the scroll compressor.
Description
- The present invention relates to a scroll compressor.
- Priority is claimed on Japanese Patent Application No.
2016-235045, filed December 2, 2016 - Scroll compressors have a compressor body including a fixed scroll and an orbiting scroll.
- The compressor body includes a compression chamber formed by the orbiting scroll meshing with the fixed scroll. The scroll compressors compress the fluid within the compression chamber by revolving and driving the orbiting scroll with respect to the fixed scroll. Such scroll compressors have a ring-like thrust plate as a member that suppresses seizure resulting from sliding of the orbiting scroll (for example, refer to PTL 1).
- PTL 1 discloses a configuration in which the orbiting scroll is provided with a ring-like recessed portion that houses a portion of a thrust plate, and the position of the thrust plate is restricted by interposing the thrust plate between the orbiting scroll and the front housing (frame). PTL 2 discloses a thrust plate formed of an abrasion-resistant material. PTL 3 discloses a minor gap on an inner periphery side of a thrust bearing. PTL 4 discloses a scroll-type compressor used for a vehicle air conditioner which includes an orbiting scroll, a stationary scroll, and a thrust plate.
-
- [PTL 1] Japanese Unexamined Patent Application Publication No.
2012-225257 EP3081815 - [PTL 3] Japanese Patent Application Publication No.
JPS57173585 - [PTL 4] International Patent Application Publication No.
WO2015198516 - As described above, PTL 1 has a configuration in which the thrust plate is interposed between the orbiting scroll, which is revolved and driven with respect to the fixed scroll, and the front housing. For this reason, if a centrifugal force becomes large due to the orbiting of the orbiting scroll and a thrust load is increased, the position of the thrust plate deviates from the recessed portion and the thrust plate and the front housing interfere with each other. Therefore, there is a possibility that the thrust plate and its peripheral components (components disposed around the thrust plate) may be damaged.
- Thus, an object of the invention is to provide a scroll compressor that can suppress damage to a thrust plate and its peripheral components.
- In order to solve the above problems, a scroll compressor related to an aspect of the invention includes a housing that has a cylindrical rear housing, and a front housing including a plate placement surface; a fixed scroll that is provided within the rear housing and fixed to the rear housing; an orbiting scroll that is provided within the rear housing, partitions a compression chamber between the orbiting scroll and the fixed scroll by meshing the fixed scroll, and is revolved and driven around the fixed scroll; a ring-like thrust plate that is disposed between an end plate, in the orbiting scroll, disposed on a side opposite to a side where the fixed scroll is provided and the plate placement surface of the front housing; a plurality of bolts that are fastened to a plate placement part, of the front housing, which partitions the plate placement surface and that restricts a position of the thrust plate with respect to the plate placement part, and the plurality of bolts each include a head part, and a shaft part having one end connected to the head part, and at least a portion of the head part is disposed to protrude from the plate placement surface, and the thrust plate has a plurality of through-holes that allow the head part to pass therethrough.
- According to the invention, by having the plurality of bolts that are fastened to the plate placement part partitioning the plate placement surface, in the front housing which does not turn, and that restrict the position of the thrust plate with respect to the plate placement part, it is possible to suppress the displacement of the thrust plate even in case where a centrifugal force becomes large due to the orbiting of the orbiting scroll and a thrust load is increased.
- Accordingly, since any interference between the thrust plate and the front housing is suppressed, damage to the thrust plate and its peripheral components (components disposed around the thrust plate) can be suppressed.
- By adopting such a configuration, it is possible to dispose the thrust plate on the plate placement surface in a state where the plurality of bolts are fastened to the plate placement part, without detaching the plurality of bolts fastened to the plate placement part from the plate placement part. Accordingly, positional restriction of the thrust plate can be enhanced due to the fitting between the head parts of the bolts and the through-holes of the thrust plate.
- Additionally, by configuring the thrust plate so as not to be directly fastened with the bolts, occurrence of distortion or deformation of the thrust plate resulting from the bolt fastening is suppressed. Thus, the reliability of the scroll compressor can be improved.
- Additionally, in the scroll compressor according to the aspect of the invention, the head part of each of the plurality of bolts may be disposed outside the orbiting scroll, and an outer peripheral part of the end plate may be provided with a first cutout part capable of housing the head part when the orbiting scroll is revolved.
- By providing the first cutout part having such a configuration at the outer peripheral part of the end plate, the contact between the outer peripheral part of the orbiting scroll and the head parts of the bolts when the orbiting scroll is revolved can be suppressed.
- Additionally, in the scroll compressor according to the aspect of the invention, a material of each of the plurality of bolts may be a material harder than a material of the orbiting scroll.
- In this way, by using the material harder than the material of the orbiting scroll as the material of the plurality of bolts, even in case where the outer peripheral part of the orbiting scroll and the head parts of the bolts are in contact with each other when the orbiting scroll is revolved, damage to the head parts of the bolts may be suppressed. Accordingly, even in case where a thrust load is increased, displacement of the thrust plate can be suppressed by the plurality of bolts.
- Additionally, in the scroll compressor according to the aspect of the above invention, the rear housing may include a suction port that suctions a fluid within the rear housing, and the plurality of bolts may be provided at positions separated from the suction port in a circumferential direction of the plate placement part.
- In this way, by providing the plurality of bolts at positions separated from the suction port for suctioning the fluid in the circumferential direction of the plate placement part, the fluid does not easily collide against the head parts of the bolts. Accordingly, occurrence of turbulence in the airflow of the fluid within the housing can be suppressed.
- In the scroll compressor according to the aspect of the invention, the plate placement part of the front housing may be provided with bolt holes to which the plurality of bolts are fastened, and each of the plurality of bolts may include a protruding part that is provided at the other end of a shaft part of each of the plurality of bolts, is made to have an outer diameter smaller than an outer diameter of the shaft part, and protrudes in an extending direction of the shaft part.
- In this way, by having the protruding part, which has an outer diameter smaller than the outer diameter of the shaft part and protrudes in the extending direction of the shaft part, at the other end of the shaft part of each of the plurality of bolts, it is possible to make the bolts independent from the bolt holes by inserting the protruding part into each bolt hole when the bolts are fastened to the bolt holes. Accordingly, the work of fastening the bolts to the plurality of bolt holes can be easily performed.
- Additionally, the scroll compressor according to the aspect of the invention may further include a rotation suppressing member that is provided between the orbiting scroll and the thrust plate, suppresses rotation of the orbiting scroll, and includes a plurality of engaging projections, the thrust plate may include a plurality of insertion cutout parts into which the engaging projections are inserted, and the plurality of through-holes may be provided at positions separated from the plurality of insertion cutout parts.
- In this way, by providing the plurality of through-holes at the positions separated from the plurality of insertion cutout parts, a decrease in the strength of the portions of the thrust plate partitioning the through-holes and the portions of the thrust plate partitioning the insertion cutout parts can be suppressed.
- Additionally, in the scroll compressor according to the aspect of the invention, the front housing may include a plurality of second cutout parts that are provided in the outer peripheral part of the plate placement part in a circumferential direction, and are formed by cutting out the plate placement part corresponding to the plate placement surface, and the thrust plate may have claw parts that are provided in the outer peripheral part of the thrust plate in the circumferential direction and are respectively disposed within the plurality of second cutout parts in a bent state.
- In this way, by having the claw parts that are respectively disposed in a bent state within the plurality of second cutout parts, it is possible to restrict the position of the thrust plate using both members of the claw parts and the head parts of the bolts. Thus, even in case where the thrust load is increased, the displacement of the thrust plate can be further suppressed. Additionally, it is possible to restrict the position of the thrust plate using both members of the claw parts and the head parts of the bolts. Accordingly, even in case where any one of the claw parts and the head parts of the bolts lose the function of positional restriction of the thrust plate due to wear or the like, it is possible to perform the positional restriction of the thrust plate using the other. Accordingly, the reliability of the scroll compressor can be improved.
- Additionally, in the scroll compressor according to the aspect of the invention, the plurality of claw parts may be provided at positions different from formation positions of a plurality of through-holes provided in the thrust plate in a radial direction of the thrust plate.
- By providing the plurality of claw parts at such positions, a decrease in the strength of the plurality of claw parts can be suppressed.
- Additionally, in the scroll compressor according to the aspect of the invention, the plurality of claw parts may be disposed outside the formation positions of a plurality of through-holes provided in the thrust plate.
- The plurality of claw parts are configured by bending the thrust plate that is a thin plate. For this reason, the claw parts may be damaged if the claw parts receive a large thrust load.
- Thus, by providing the plurality of claw parts outside the formation positions (in other words, the positions of the plurality of bolts) of the plurality of through-holes provided in the thrust plate, the thrust plate abuts against the plurality of bolts disposed inside the plurality of claw parts even in case where a large thrust load is applied to the thrust plate. Accordingly, since it is possible to reduce the thrust load in the outer peripheral part of the thrust plate. Accordingly, the plurality of claw parts do not receive a large thrust load. Hence, the displacement of the thrust plate can be further suppressed while suppressing damage to the plurality of claw parts.
- Additionally, in the scroll compressor according to the aspect of the above invention, a first clearance formed between a head part of each of the bolts and each of through-holes of the thrust plate may be smaller than a second clearance formed between a position where the thrust plate is bent and each of the second cutout parts.
- In this way, by making the first clearance smaller than second clearance, the portions of the thrust plate that partition the through-holes, and the bolts are brought into contact with each other when the thrust plate is displaced. Accordingly, it is possible to suppress the collision of the plurality of claw parts against corners of the second cutout parts. Accordingly, damage to the claw parts resulting from the claw parts colliding against the corners of the second cutout parts can be suppressed.
- Accordingly, damage to the thrust plate and its peripheral components (components disposed around the thrust plate) can be suppressed.
-
-
Fig. 1 is a sectional view schematically illustrating a schematic configuration of principal parts of a scroll compressor related to a first embodiment of the invention. -
Fig. 2 is a schematic view for illustrating a positional relationship between a suction port constituting a housing, and a plurality of bolts. -
Fig. 3 is a sectional view of the scroll compressor illustrated inFig. 2 taken along line C1-C2. -
Fig. 4 is a plan view schematically illustrating a rotation suppressing member illustrated inFig. 1 . -
Fig. 5 is a sectional view for illustrating a modification example of bolts to be fastened to a plate placement part. -
Fig. 6 is a sectional view schematically illustrating a schematic configuration of principal parts of a scroll compressor related to a modification example of the first embodiment. -
Fig. 7 is a view schematically illustrating a schematic configuration of principal parts of a scroll compressor related to a second embodiment of the invention. -
Fig. 8 is a sectional view of the scroll compressor illustrated inFig. 7 taken along line D1-D2. - Hereinafter, embodiments to which the invention is applied will be described in detail with reference to the drawings.
- A
scroll compressor 10 of a first embodiment of the invention will be described with reference toFigs. 1 to 3 . In addition, O1 illustrated inFig. 1 represents an axis (hereinafter referred to as "an axis O1") of adrive shaft 14.Fig. 2 is a view of aplate placement part 42, athrust plate 27, abolt 12, and arear housing 32, which are illustrated inFig. 1 , as seen from A. InFig. 2 , for the convenience of description, therear housing 32 is illustrated in a section. E illustrated inFig. 2 represents a circumferential direction (hereinafter referred to as "a circumferential direction E") of theplate placement part 42. - In
Fig. 2 , the same components as those of the structural body illustrated inFigs. 1 and3 are denoted by the same reference signs. Additionally, for convenience of description, anend plate 51A (refer toFig. 1 ), which is not illustrated inFig. 2 , is illustrated inFig. 3 . - The
scroll compressor 10 has ahousing 11, a plurality of thebolts 12, amain bearing 13, thedrive shaft 14, a sub-bearing 15, a lip seal 17, a drivencrank mechanism 19, acompressor body 21, arotation suppressing member 23, and thethrust plate 27. - The
housing 11 has a sealed structure and has therear housing 32 and afront housing 34. - The
rear housing 32 is a cylindrical cup-shaped member. One side of therear housing 32 is an open end. Therear housing 32 has asuction port 35 for introducing a fluid into thehousing 11 from the outside of thehousing 11. - The
front housing 34 is provided on the open end side of therear housing 32 so as to block the open end of therear housing 32. Thefront housing 34 has afirst housing part 36 and asecond housing part 37. - The
first housing part 36 is fitted to therear housing 32 via a seal member (for example, an O-ring or the like) on the open end side of therear housing 32. Thefirst housing part 36 has a main-bearing housing part 41 and theplate placement part 42. The main-bearing housing part 41 has a space capable of housing themain bearing 13 therein. - The
plate placement part 42 is disposed between the main-bearing housing part 41 and anorbiting scroll 51 in the axis O1. Theplate placement part 42 protrudes in a direction toward the orbitingscroll 51 from the main-bearing housing part 41 located outside themain bearing 13. - The shape of the
plate placement part 42 is a ring shape. Theplate placement part 42 has aplate placement surface 42a that is a plane that faces the orbitingscroll 51. Theplate placement surface 42a is a ring-like flat plane. Thethrust plate 27 is disposed on theplate placement surface 42a. - The
plate placement part 42 has a plurality of (for example, two as an example, in the case ofFig. 2 ) andbolt holes 42A and a plurality ofcutout grooves 42B. Thebolts 12 are respectively fastened to the plurality ofbolt holes 42A. It is preferable that the plurality ofbolt holes 42A are provided, for example, at positions separated from thesuction port 35 in the circumferential direction E of theplate placement part 42. - In this way, by providing the plurality of
bolt holes 42A at the positions separated from thesuction port 35 in the circumferential direction E of theplate placement part 42, it is possible to dispose the plurality ofbolts 12 at the positions separated in the circumferential direction E of theplate placement part 42 from thesuction port 35. - Accordingly, since it is possible to suppress the collision of the fluid immediately after being suctioned from the
suction port 35 againsthead parts 12A ofbolts 12, occurrence of turbulence in an airflow formed within thehousing 11 can be suppressed. - Additionally, as illustrated in
Fig. 2 , in case where theplate placement part 42 has twobolt holes 42A, the twobolt holes 42A may be disposed to face each other with the axis O1 interposed therebetween. By providing the twobolt holes 42A at such positions, the position of thethrust plate 27 with respect to theplate placement part 42 can be firmly restricted using the twobolts 12. - In addition, although a case where the two
bolt holes 42A are provided has been described as an example inFig. 2 , the number ofbolt holes 42A may be plural and is not limited to two. - The
cutout grooves 42B are formed by being cut out in portions of an inner peripheral part of theplate placement surface 42a. The plurality of (two as an example, in the case ofFig. 2 )cutout grooves 42B are disposed in the circumferential direction of theplate placement part 42. As illustrated inFig. 2 , in case where twocutout grooves 42B are provided, thecutout grooves 42B may be disposed to face each other with the axis O1 interposed therebetween. - Each of the plurality of
bolts 12 has ahead part 12A, and ashaft part 12B having one end connected to thehead part 12A. The plurality ofbolts 12 are provided at theplate placement part 42. Thehead parts 12A are fastened to the twobolt holes 42A in a state where lower surfaces 12Aa of thebolts 12 are in contact with theplate placement surface 42a. Accordingly, theentire head parts 12A protrude from theplate placement surface 42a. The plurality ofbolts 12 are disposed in an outer peripheral part of thethrust plate 27 in a circumferential direction. - The
head parts 12A of thebolts 12 are disposing within through-holes 64 (to be described below) of thethrust plate 27, so that when thethrust plate 27 is displaced, thethrust plate 27 partitioning the through-holes 64 abuts against the head parts, thereby suppressing the displacement of thethrust plate 27. - The plurality of
bolts 12 may be provided, for example, at positions separated from thesuction port 35 in the circumferential direction of theplate placement part 42. - In this way, by providing the plurality of
bolts 12 at positions separated from thesuction port 35 for suctioning the fluid in the circumferential direction of theplate placement part 42, the fluid does not easily collide against thehead parts 12A of thebolts 12. Accordingly, occurrence of turbulence in the airflow of the fluid within thehousing 11 can be suppressed. - The
second housing part 37 is formed integrally with thefirst housing part 36 such that thefirst housing part 36 is disposed between thesecond housing part 37 and the orbitingscroll 51. - The
second housing part 37 is a tubular member extends in the direction of the axis O1, and both ends thereof are open ends. The outer diameter and the inner diameter of thesecond housing part 37 are configured so as to be smaller than the outer diameter and the inner diameter of the main-bearing housing part 41. - The
main bearing 13 has anouter ring 13A, aninner ring 13B, and a plurality of rollingelements 13C. Theouter ring 13A is fixed to the main-bearing housing part 41. Theinner ring 13B is fixed to an outer peripheral part of abase end part 14A of thedrive shaft 14. The plurality of rollingelements 13C are disposed between theouter ring 13A and theinner ring 13B. - The
drive shaft 14 extends in the direction of the axis O1, and has thebase end part 14A, atip part 14B, and a crankpin 14C. - The
drive shaft 14 passes through thesecond housing part 37 from the inside of thehousing 11. A portion of thetip part 14B of thedrive shaft 14 is housed within thesecond housing part 37 in a state where a gap allowing the sub-bearing 15 to be disposed therein is interposed between the tip part and thesecond housing part 37. - A remaining portion (a portion located closer to a tip side than a portion of the
tip part 14B) of thetip part 14B of thedrive shaft 14 protrudes toward the outside of thesecond housing part 37. - The
base end part 14A is larger in diameter than thetip part 14B. The crankpin 14C is provided at thebase end part 14A located on the side opposite to the side where thetip part 14B is disposed. The crankpin 14C is disposed at a position that is eccentric by a predetermined dimension with respect to the axis O1. - The sub-bearing 15 is provided between the
second housing part 37 and a portion of thetip part 14B of thedrive shaft 14. The sub-bearing 15 has anouter ring 15A, aninner ring 15B, and a plurality of rollingelements 15C. Theouter ring 15A is fixed inside thesecond housing part 37. - The
inner ring 15B is fixed to a partial outer peripheral part of thetip part 14B of thedrive shaft 14. The plurality of rollingelements 15C are disposed between theouter ring 15A and theinner ring 15B. - Accordingly, the sub-bearing 15 rotatably supports the
drive shaft 14 together with themain bearing 13. - The lip seal 17 is provided on an inner wall of the
second housing part 37 located closer to thebase end part 14A side of thedrive shaft 14 than the sub-bearing 15. The lip seal 17 abuts against an outer peripheral surface of thedrive shaft 14. The lip seal 17 is a seal member for maintaining the airtightness within the housing 11 (for preventing entering of the air outside the housing 11) . - The driven
crank mechanism 19 has adrive bush 46 and a turningbearing 47. Thedrive bush 46 houses the crankpin 14C and is fixed to the outside of the crankpin 14C. The turningbearing 47 is provided outside thedrive bush 46. - The
compressor body 21 is housed within thehousing 11 and has a fixedscroll 49 and the orbitingscroll 51. - The fixed
scroll 49 has anend plate 49A and awrap part 49B. Theend plate 49A is orthogonal to the axis O1. Theend plate 49A is disposed to face thefront housing 34 via theorbiting scroll 51 in the direction of the axis O1. Theend plate 49A is orthogonal to the axis O1 and has one surface 49Aa that faces the orbitingscroll 51. Theend plate 49A of the fixedscroll 49 is fixed to therear housing 32 with bolts or the like. - The
wrap part 49B has a spiral shape and is provided on the one surface 49Aa of theend plate 49A. Thewrap part 49B is erected in the direction of the axis O1. - The orbiting
scroll 51 is disposed between thefront housing 34 and the fixedscroll 49. The orbitingscroll 51 has theend plate 51A, awrap part 51B, and aboss part 51C. - The
end plate 51A is orthogonal to the axis O1. Theend plate 51A has one surface 51Aa that faces the one surface 49Aa of the fixedscroll 49, the other surface 51Ab, and a first cutout part 51Ac. - The one surface 51Aa is in contact with an inner peripheral part of the
thrust plate 27 and is disposed inside positions where thehead parts 12A of the plurality ofbolts 12 are provided. - The other surface 51Ab is disposed on the side opposite to the one surface 51Aa and is orthogonal to the axis O1. The other surface 51Ab faces the driven crank
mechanism 19. The first cutout part 51Ac is provided at an outer peripheral part of theend plate 51A so as to be capable of housing thehead parts 12A of thebolts 12 when the orbitingscroll 51 is revolved. - By providing the first cutout part 51Ac having such a configuration at the outer peripheral part of the
end plate 51A, the contact between the outer peripheral part of the orbitingscroll 51 and thehead parts 12A of thebolts 12 when the orbitingscroll 51 is revolved can be suppressed. - The
wrap part 51B has a spiral shape and is provided on the one surface 51Aa of theend plate 51A. Thewrap part 51B is erected in the direction of the axis O1 (a direction toward theend plate 49A). Thewrap part 51B meshes with thewrap part 49B. Accordingly, acompression chamber 21A that compresses the fluid is partitioned between the fixedscroll 49 and the orbitingscroll 51. - The
boss part 51C is provided on the other surface 51Ab of theend plate 51A. Theboss part 51C protrudes in a direction toward thefront housing 34 from the other surface 51Ab of theend plate 51A. Theboss part 51C houses a portion of the driven crankmechanism 19. Theboss part 51C is coupled to the crankpin 14C via the driven crankmechanism 19. - Accordingly, the orbiting
scroll 51 is configured to be capable of being revolved and driven with respect to the fixedscroll 49. - In addition, as the material of the plurality of
bolts 12 described earlier, for example, a material harder than the material of the orbitingscroll 51 may be used. - In this way, by using the material harder than the material of the orbiting
scroll 51 as the material of the plurality ofbolts 12, even in case where the outer peripheral part of the orbitingscroll 51 and thehead parts 12A of thebolts 12 are in contact with each other when the orbitingscroll 51 is revolved, damage to thehead parts 12A of thebolts 12 may be suppressed. Accordingly, even in case where a thrust load is increased, displacement of thethrust plate 27 can be suppressed by the plurality ofbolts 12. - Next, the
rotation suppressing member 23 will be described with reference toFigs. 1 ,2 , and4 . InFig. 4 , therotation suppressing member 23 as seen in a plan view from thefront housing 34 side is illustrated. Additionally, inFig. 4 , an Oldham ring is illustrated as an example of therotation suppressing member 23. - The
rotation suppressing member 23 is provided between theplate placement part 42 and the orbitingscroll 51. Therotation suppressing member 23 has a ring-like member 55, first engagingprojections 56, and second engagingprojections 57. The ring-like member 55 has a surface in contact with theend plate 51A of the orbitingscroll 51 and asurface 55a disposed on the side opposite to this surface. Thesurface 55a is a surface that faces thefront housing 34. - The first
engaging projections 56 are provided by the same number as that of thecutout grooves 42B on thesurface 55a of the ring-like member 55. The firstengaging projections 56 protrude in a direction orthogonal to thesurface 55a of the ring-like member 55. The firstengaging projections 56 are disposed at positions where the projections are insertable into thecutout grooves 42B. - A plurality of (two as an example in the case of
Fig. 3 ) the secondengaging projections 57 are provided on thesurface 55a of the ring-like member 55 located on the side opposite to thesurface 55a. The secondengaging projections 57 protrude from thesurface 55a of the ring-like member 55 located on the side opposite to thesurface 55a. The secondengaging projections 57 have a shape wider than the ring-like member 55. The secondengaging projections 57 are inserted into groove parts formed in theend plate 51A. - The
rotation suppressing member 23 having the above configuration suppresses the rotation of the orbitingscroll 51. - In addition, although the Oldham ring has been described as an example of the
rotation suppressing member 23 inFig. 4 , for example, a pin/link type rotation suppressing member, or other types of rotation suppressing members may be used. - Next, the
thrust plate 27 will be described with reference toFigs. 1 to 4 . - The
thrust plate 27 is a thin metallic plate and is provided between theplate placement part 42 and the orbitingscroll 51. Thethrust plate 27 has aplate body 61, a plurality ofinsertion cutout parts 62, and a plurality of through-holes 64. - The
plate body 61 is a ring-like plate material. In theplate body 61, one entire overall surface is in contact with theplate placement surface 42a, and an inner peripheral part of the other surface is in contact with theend plate 51A of the orbitingscroll 51. Accordingly, the outer peripheral part of theplate body 61 is exposed from theend plate 51A. - The plurality of (two as an example in the case of
Fig. 2 )insertion cutout parts 62 are provided at an inner peripheral part of theplate body 61. The plurality ofinsertion cutout parts 62 are provided so as to correspond to the formation positions of thecutout grooves 42B. - Portions of the first
engaging projections 56 are inserted into the plurality ofinsertion cutout parts 62. By inserting the firstengaging projections 56 into theinsertion cutout parts 62 and thecutout grooves 42B, the positions of theplate placement part 42, thethrust plate 27, and therotation suppressing member 23 are restricted. - As illustrated in
Fig. 2 , in case where the twoinsertion cutout parts 62 are provided, twoinsertion cutout parts 62 may be disposed so as to face each other with the axis O1 interposed therebetween. In addition, the number ofinsertion cutout parts 62 may be plural and is not limited to two. - The plurality of (two as an example in the case of
Fig. 2 ) 64 are circular holes formed by passing through the outer peripheral part of theplate body 61. The diameter of the plurality of through-holes 64 is set to such a size that the through-holes allow thehead parts 12A of thebolts 12 to pass therethrough. A first clearance CL1 is provided between the plurality of through-holes 64 and thehead parts 12A of thebolts 12. The plurality of through-holes 64 surround thehead parts 12A of thebolts 12 via the first clearance CL1. - In this way, by having the
thrust plate 27 including the plurality of through-holes 64 having such a size that thehead parts 12A of thebolts 12, which are disposed on theplate placement surface 42a of theplate placement part 42 and protrude from theplate placement surface 42a, can pass through the through-holes, it is possible to dispose thethrust plate 27 on theplate placement surface 42a in a state where the plurality ofbolts 12 are fastened to theplate placement part 42, without detaching the plurality ofbolts 12 fastened to theplate placement part 42 from theplate placement part 42. - Accordingly, positional restriction of the
thrust plate 27 can be enhanced due to the fitting between thehead parts 12A of thebolts 12 and the through-holes 64 of thethrust plate 27. - Additionally, by configuring the
thrust plate 27 so as not to be directly fastened with thebolts 12, occurrence of distortion or deformation of thethrust plate 27 resulting from the bolt fastening is suppressed. Thus, the reliability of thescroll compressor 10 can be improved. - Additionally, the plurality of through-
holes 64 may be provided, for example, at positions separated from the plurality ofinsertion cutout parts 62. - In this way, by providing the plurality of through-
holes 64 at the positions separated from the plurality ofinsertion cutout parts 62, a decrease in the strength of the portions of thethrust plate 27 partitioning the through-holes 64 and the portions of thethrust plate 27 partitioning theinsertion cutout parts 62 can be suppressed. - In the
scroll compressor 10 having the above configuration, the orbitingscroll 51 is separated from thethrust plate 27 and replacement work (maintenance) of thethrust plate 27 is performed, in a state where the plurality ofbolts 12 are fastened to the bolt holes 42A of theplate placement part 42. - According to the
scroll compressor 10 of the first embodiment, by having the plurality ofbolts 12 that are fastened to theplate placement part 42 partitioning theplate placement surface 42a, in thefront housing 34 which does not turn, and that restrict the position of thethrust plate 27 with respect to theplate placement part 42, it is possible to suppress the displacement of thethrust plate 27 even in case where a centrifugal force becomes large due to the orbiting of the orbitingscroll 51 and a thrust load is increased. - Accordingly, since any interference between the
thrust plate 27 and thefront housing 34 is suppressed, damage to thethrust plate 27 and its peripheral components (components disposed around the thrust plate 27) can be suppressed. - Next, the modification example of the bolt fastened to the
plate placement part 42 will be described with reference toFig. 5 . InFig. 5 , the same components as those of the structural body illustrated inFig. 3 are denoted by the same reference signs. - A
bolt 67 is configured to eachbolt 12 except that the configuration of eachbolt 12 illustrated inFig. 3 is further provided with a protrudingpart 68. A plurality of thebolts 67 are fastened to the bolt holes 42A. The protrudingpart 68 is provided at the other end of theshaft part 12B. - The protruding
part 68 protrudes in an extending direction of theshaft part 12B. The outer diameter of the protrudingpart 68 is configured so as to be smaller than the outer diameter of theshaft part 12B. - In this way, by having the protruding
part 68, which has an outer diameter smaller than the outer diameter of theshaft part 12B and protrudes in the extending direction of theshaft part 12B, at the other end of theshaft part 12B of each of the plurality ofbolts 67, it is possible to make thebolts 67 independent from the bolt holes 42A by inserting the protrudingpart 68 into eachbolt hole 42A when thebolts 67 are fastened to the bolt holes 42A. Accordingly, the work of fastening thebolts 67 to the plurality ofbolt holes 42A can be easily performed. - Next, a
scroll compressor 70 related to a modification example of the first embodiment will be described with reference toFig. 6 . InFig. 6 , some of constituent elements of thescroll compressor 70 are illustrated. InFig. 6 , the same components as those of the structural body illustrated inFig. 3 are denoted by the same reference signs. - The
scroll compressor 70 is configured similarly to thescroll compressor 10 except having bolt holes 71 instead of the bolt holes 42A that constitute thescroll compressor 10 of the first embodiment. - Each
bolt hole 71 has a headpart housing part 71A and ashaft part hole 71B. The headpart housing part 71A is provided on theplate placement surface 42a side of theplate placement part 42. The headpart housing part 71A houses a portion of thehead part 12A of eachbolt 12. Theshaft part hole 71B is a hole threadedly engaged with theshaft part 12B of thebolt 12 and is formed integrally with the headpart housing part 71A. - By providing the bolt holes 71 considered as such a configuration in the
plate placement part 42 and fastening thebolts 12 to the bolt holes 71, it is possible to reduce the amount of protrusion of thehead parts 12A that protrude from theplate placement surface 42a. - Accordingly, a width W of the first cutout part 51Ac (the width in the direction of the axis O1 illustrated in
Fig. 1 ) can be made smaller as compared to a structural body (a structural body in which theentire head parts 12A protrude from theplate placement surface 42a) illustrated inFig. 3 . - A
scroll compressor 75 of a second embodiment will be described with reference toFigs. 3 ,7 , and8 . InFig. 7 , only principal parts of thescroll compressor 75 are schematically illustrated. Additionally, inFig. 7 , the same components as those of the structural body illustrated inFig. 2 are denoted by the same reference signs. Additionally, inFig. 8 , the same components as those of the structural body illustrated inFig. 1 and7 are denoted by the same reference signs. - The
scroll compressor 75 of the second embodiment is configured similarly to thescroll compressor 10 except that theplate placement part 42 described in the first embodiment is provided with a plurality ofsecond cutout parts 76 and athrust plate 78 is provided instead of thethrust plate 27 that constitutes thescroll compressor 10 of the first embodiment. - The plurality of
second cutout parts 76 are provided in the outer peripheral part of theplate placement part 42 that partitions theplate placement surface 42a, in the circumferential direction. - Each
second cutout part 76 has asurface 76a orthogonal to theplate placement surface 42a. Thesecond cutout part 76 can be disposed, for example, between abolt 12 and acutout groove 42B. - By providing the
second cutout part 76 at such a position, thesecond cutout part 76 can be disposed at a position where aninsertion cutout part 62 and a through-hole 64 are not provided. - The
thrust plate 78 is configured similarly to thescroll compressor 10 described in the first embodiment except for having a plurality ofclaw parts 79. - The plurality of
claw parts 79 are configured such that portions protruding from an outer peripheral edge of theplate body 61 are bent toward thesecond cutout parts 76 side. Theclaw parts 79 are disposed within the plurality ofsecond cutout parts 76. - In this way, by having the
claw parts 79 that are respectively disposed in a bent state within the plurality ofsecond cutout parts 76, it is possible to restrict the position of thethrust plate 78 using both members of theclaw parts 79 and thehead parts 12A of thebolts 12. Thus, even in case where the thrust load is increased, the displacement of thethrust plate 78 can be further suppressed. - Additionally, it is possible to restrict the position of the
thrust plate 78 using both members of theclaw parts 79 and thehead parts 12A of thebolts 12. Accordingly, even in case where any one of theclaw parts 79 and thehead parts 12A of thebolts 12 lose the function of positional restriction of thethrust plate 78 due to wear or the like, it is possible to perform the positional restriction of thethrust plate 78 using the other. Accordingly, the reliability of thescroll compressor 75 can be improved. - Additionally, the plurality of
claw parts 79 may be disposed, for example, outside the formation positions of the plurality of through-holes 64 provided in thethrust plate 78. - The plurality of
claw parts 79 are configured by bending thethrust plate 78 that is a thin metallic plate. For this reason, theclaw parts 79 may be damaged if the claw parts receive a large thrust load. - Thus, by providing the plurality of
claw parts 79 outside the formation positions (in other words, the positions of the plurality of bolts 12) of the plurality of through-holes 64 provided in thethrust plate 78, thethrust plate 78 abuts against the plurality ofbolts 12 disposed inside the plurality ofclaw parts 79 even in case where a large thrust load is applied to thethrust plate 78. Accordingly, since it is possible to reduce the thrust load in the outer peripheral part of thethrust plate 78, the plurality ofclaw parts 79 do not receive a large thrust load. - Accordingly, the displacement of the
thrust plate 78 can be further suppressed while suppressing damage to the plurality ofclaw parts 79. - Moreover, the plurality of
claw parts 79 may be provided at positions different from the formation positions of the plurality of through-holes 64 provided in thethrust plate 78 in a radial direction of thethrust plate 78. - By providing the plurality of
claw parts 79 at such positions, a decrease in the strength of the plurality ofclaw parts 79 can be suppressed. - A second clearance CL2 is formed between the
surface 76a of asecond cutout part 76 and aclaw part 79. The first clearance CL1 described earlier may be, for example, made smaller than the second clearance CL2. - In this way, by making the first clearance CL1 smaller than second clearance CL2, the portions of the
thrust plate 78 that partition the through-holes 64, and thebolts 12 are brought into contact with each other when thethrust plate 78 is displaced. Accordingly, it is possible to suppress the collision of theclaw parts 79 againstcorners 76A of thesecond cutout parts 76. Accordingly, damage to theclaw parts 79 resulting from theclaw parts 79 colliding against thecorners 76A of thesecond cutout parts 76 can be suppressed. - According to the
scroll compressor 75 of the second embodiment, the plurality ofclaw parts 79 disposed in the outer peripheral edge of thethrust plate 78 in the circumferential direction are provided in addition to the plurality ofbolts 12 that restrict the position of thethrust plate 78 with respect to theplate placement part 42. Accordingly, the displacement of thethrust plate 78 can be further suppressed while suppressing the damage to the plurality ofclaw parts 79. - In addition, in the second embodiment, the
bolts 67 illustrated inFig. 5 may be used instead of the plurality ofbolts 12. Additionally, in the second embodiment, the bolt holes 71 illustrated inFig. 6 may be used. - Although the preferable embodiments for carrying out invention have been described above in detail, the invention is not limited to the relevant specific embodiments, and various deformations and changes can be made within the scope of the invention described in the claims.
- The invention is applicable to the scroll compressor.
-
- 10, 70, 75:
- scroll compressor
- 11:
- housing
- 12, 67:
- bolt
- 12A:
- head part
- 12B:
- shaft part
- 12Aa:
- lower surface
- 13:
- main bearing
- 13A, 15A:
- outer ring
- 13B, 15B:
- inner ring
- 13C, 15C:
- rolling element
- 14:
- drive shaft
- 14A:
- base end part
- 14B:
- tip part
- 14C:
- crankpin
- 15:
- sub-bearing
- 17:
- lip seal
- 19:
- driven crank Mechanism
- 21:
- compressor body
- 21A:
- compression chamber
- 23:
- rotation suppressing member
- 27, 78:
- thrust plate
- 32:
- rear housing
- 34:
- front housing
- 35:
- suction port
- 36:
- first housing part
- 37:
- second housing part
- 41:
- main-bearing housing part
- 42:
- plate placement part
- 42a:
- plate placement surface
- 42A, 71:
- bolt hole
- 42B:
- cutout groove
- 46:
- drive bush
- 47:
- turning bearing
- 49:
- fixed scroll
- 49A, 51A:
- end plate
- 49Aa, 51Aa:
- one surface
- 49B, 51B:
- wrap part
- 51:
- orbiting scroll
- 51A:
- end plate
- 51Ab:
- other surface
- 51Ac:
- first cutout part
- 51B:
- wrap part
- 51C:
- boss part
- 55:
- ring-like member
- 55a, 76a:
- surface
- 56:
- first engaging projection
- 57:
- second engaging projection
- 61:
- plate body
- 62:
- insertion cutout part
- 64:
- through-hole
- 68:
- protruding part
- 71:
- head part housing part
- 71B:
- shaft part hole
- 76:
- second cutout part
- 76A:
- corner
- 79:
- claw part
- B:
- region
- E:
- circumferential direction
- CL1:
- first clearance
- CL2:
- second clearance
- O1:
- axis
- W:
- width
Claims (10)
- A scroll compressor (10, 70, 75) comprising:a housing (11) that has a cylindrical rear housing (32), and a front housing (34) including a plate placement surface (42a);a fixed scroll (49) that is provided within the rear housing (32) and fixed to the rear housing (32);an orbiting scroll (51) that is provided within the rear housing (32), which forms a compression chamber (21A) between the orbiting scroll (51) and the fixed scroll (49) by meshing the fixed scroll (49), and is revolved and driven around the fixed scroll (49);a ring-like thrust plate (27, 78) that is disposed between an end plate (51A), in the orbiting scroll (51), disposed on a side opposite to a side where the fixed scroll (49) is provided and the plate placement surface (42a) of the front housing (34); anda plurality of bolts (12, 67) that are fastened to a plate placement part (42), of the front housing (34), which partitions the plate placement surface (42a) and that restricts a position of the thrust plate (27, 78) with respect to the plate placement part (42),characterized in that the plurality of bolts (12, 67) each include a head part (12A), and a shaft part (12B) having one end connected to the head part (12A), and at least a portion of the head part (12A) is disposed to protrude from the plate placement surface (42a), and the thrust plate (27, 78) has a plurality of through-holes (64) that allow the head part (12A) to pass therethrough.
- The scroll compressor (10, 70, 75) according to Claim 1,
wherein the head part (12A) of each of the plurality of bolts (12, 67) is disposed outside the orbiting scroll (51), and
wherein an outer peripheral part of the end plate (51A) is provided with a first cutout part (51Ac) capable of housing the head part (12A) when the orbiting scroll (51) is revolved. - The scroll compressor (10, 70, 75) according to any of Claim 1 or 2,
wherein a material of each of the plurality of bolts (12, 67) is a material harder than a material of the orbiting scroll (51). - The scroll compressor (10, 70, 75) according to any of Claims 1 to 3,
wherein the rear housing (32) includes a suction port (35) that suctions a fluid within the rear housing (32), and
wherein the plurality of bolts (12, 67) are provided at positions separated from the suction port (35) in a circumferential direction of the plate placement part (42). - The scroll compressor (10, 70, 75) according to any of Claims 1 to 4,
wherein the plate placement part (42) of the front housing (34) is provided with bolt holes (42A, 71) to which the plurality of bolts (12, 67) are fastened, and
wherein each of the plurality of bolts (12, 67) includes a protruding part (68) that is provided at the other end of a shaft part (12B) of each of the plurality of bolts (12, 67), and that is configured to have an outer diameter smaller than an outer diameter of the shaft part (12B), and protrudes in an extending direction of the shaft part (12B). - The scroll compressor (10, 70, 75) according to any of Claims 1 to 5, further comprising:a rotation suppressing member (23) that is provided between the orbiting scroll (51) and the thrust plate (27, 78), which is configured to suppress rotation of the orbiting scroll (51), and which includes a plurality of engaging projections (56, 57),wherein the thrust plate (27, 78) includes a plurality of insertion cutout parts (62) into which the engaging projections (56, 57) are inserted, andwherein the plurality of through-holes (64) are provided at positions separated from the plurality of insertion cutout parts (62).
- The scroll compressor (10, 70, 75) according to any of Claims 1 to 6,
wherein the front housing (34) includes a plurality of second cutout parts (76) that are provided in the outer peripheral part of the plate placement part (42) in a circumferential direction, and are formed by cutting out the plate placement part (42) corresponding to the plate placement surface (42a), and
wherein the thrust plate has claw parts (79) that are provided in the outer peripheral part of the thrust plate (27, 78) in the circumferential direction and are respectively disposed within the plurality of second cutout parts (76) in a bent state. - The scroll compressor (10, 70, 75) according to Claim 7,
wherein the plurality of claw parts (79) are provided at positions different from formation positions of a plurality of through-holes (64) provided in the thrust plate (27, 78) in a radial direction of the thrust plate (27, 78). - The scroll compressor (10, 70, 75) according to Claim 7 or 8,
wherein the plurality of claw parts (79) are disposed outside the formation positions of a plurality of through-holes (64) provided in the thrust plate (27, 78). - The scroll compressor (10, 70, 75) according to any of Claims 7 to 9,
wherein a first clearance (CL1) formed between a head part (12A) of each of the bolts (12, 67) and each of through-holes (64) of the thrust plate (27, 78) is smaller than a second clearance (CL2) formed between a position where the thrust plate (27, 78) is bent and each of the second cutout parts (76).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016235045A JP6906932B2 (en) | 2016-12-02 | 2016-12-02 | Scroll compressor |
PCT/JP2017/042359 WO2018101195A1 (en) | 2016-12-02 | 2017-11-27 | Scroll compressor |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3480467A1 EP3480467A1 (en) | 2019-05-08 |
EP3480467A4 EP3480467A4 (en) | 2019-06-05 |
EP3480467B1 true EP3480467B1 (en) | 2020-07-01 |
Family
ID=62242651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17876515.2A Active EP3480467B1 (en) | 2016-12-02 | 2017-11-27 | Scroll compressor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3480467B1 (en) |
JP (1) | JP6906932B2 (en) |
WO (1) | WO2018101195A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57173585A (en) * | 1981-04-17 | 1982-10-25 | Mitsubishi Electric Corp | Scroll compressor |
JPH09228967A (en) * | 1996-02-20 | 1997-09-02 | Matsushita Electric Ind Co Ltd | Scroll compressor |
JP2003166528A (en) * | 2001-11-29 | 2003-06-13 | Mitsubishi Heavy Ind Ltd | Thrust bearing and scroll type fluid machine |
JP5745450B2 (en) * | 2012-03-30 | 2015-07-08 | 株式会社日本自動車部品総合研究所 | Compressor injection device |
JP6442171B2 (en) * | 2014-06-27 | 2018-12-19 | 三菱重工サーマルシステムズ株式会社 | Scroll compressor |
JP6513420B2 (en) * | 2015-02-19 | 2019-05-15 | 三菱重工サーマルシステムズ株式会社 | Scroll compressor |
JP2016200062A (en) * | 2015-04-10 | 2016-12-01 | サンデン・オートモーティブコンポーネント株式会社 | Scroll Type Fluid Machine |
-
2016
- 2016-12-02 JP JP2016235045A patent/JP6906932B2/en active Active
-
2017
- 2017-11-27 WO PCT/JP2017/042359 patent/WO2018101195A1/en unknown
- 2017-11-27 EP EP17876515.2A patent/EP3480467B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
WO2018101195A1 (en) | 2018-06-07 |
EP3480467A1 (en) | 2019-05-08 |
EP3480467A4 (en) | 2019-06-05 |
JP6906932B2 (en) | 2021-07-21 |
JP2018091219A (en) | 2018-06-14 |
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