JP2007146762A - Electric compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric compressor improving the durability of a support mechanism for supporting a movable scroll member in an axial direction without providing an exclusive device for supplying oil to one end side of a drive shaft, and moreover causing no degradation of compression efficiency. <P>SOLUTION: The electric compressor is constituted to discharge a refrigerant compressed by scroll members 10, 20, to the outside of a compressor body 50 after passing through the lower end face side of the movable scroll member 20 and the upper end side of the drive shaft 30. The movable scroll member 20 is thereby energized to the fixed scroll member 10 side by the compressed refrigerant, and lubricating oil included in the compressed refrigerant sticks to the lower end face side of the movable scroll member 20 and the upper end side of the drive shaft 30 to improve the durability of bearings 31, 32, 33, and the like supporting the movable scroll member 20 in the axial direction. Further, all the refrigerant compressed by the respective scroll members 10, 20 can be discharged to the outside of the compressor body 50. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electric compressor used in, for example, a freezer / refrigerated showcase, a vending machine, an air conditioner, and the like.

  Conventionally, as this type of electric compressor, a fixed scroll member having a spiral projection on one end surface, a movable scroll member having a spiral projection on one end surface so as to engage with the spiral projection of the fixed scroll member, One end side is connected to the movable scroll member, and has a drive shaft that causes the movable scroll member to perform a predetermined turning motion, a motor that drives the drive shaft, a compression chamber that houses each scroll member, and a motor chamber that houses the motor. A compressor body, and an oil supply device that supplies lubricating oil stored in the motor chamber to one end side of the drive shaft. In addition to the one end side of the drive shaft and the movable scroll member by the lubricating oil supplied by the oil supply device. A device that lubricates the end face side and improves the durability of the support mechanism that supports the movable scroll member in the axial direction is known (for example, Patent Document 1 reference.).

As other electric compressors, the same fixed scroll member, movable scroll member, drive shaft and compressor main body as those described above, and a part of the refrigerant compressed by each scroll member are provided in the movable scroll member. And a discharge hole that discharges to the other end surface side of the movable scroll member. When the refrigerant is compressed by each scroll member, the movable scroll member is biased toward the fixed scroll member by the refrigerant discharged from the discharge hole. There has been known one in which the axial force applied to the scroll member is relaxed and the durability of the support mechanism for supporting the movable scroll member in the axial direction is improved (for example, see Patent Document 2).
JP 2005-2922 A JP-A-7-332257

  However, since the former electric compressor requires an oil supply device to lubricate one end side of the drive shaft and the other end surface side of the movable scroll member, the manufacturing cost is increased by the amount of the oil supply device. was there.

  In the latter electric compressor, in order to improve the durability of the support mechanism of the movable scroll member, a part of the refrigerant compressed by each scroll member is discharged from the discharge hole to the other end surface side of the movable scroll member. Therefore, there is a problem that the compression efficiency is lowered by the amount that a part of the refrigerant is discharged from the discharge hole.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to support the movable scroll member in the axial direction without providing a dedicated device for supplying oil to one end side of the drive shaft. An object of the present invention is to provide an electric compressor that can improve the durability of the mechanism and that does not lower the compression efficiency.

  In order to achieve the above-mentioned object, the present invention has a fixed scroll member, a movable scroll member provided so that one end surface thereof faces the fixed scroll member, and one end side connected to the movable scroll member. A drive shaft for rotating, a motor for driving the drive shaft, a compression chamber for housing each scroll member, and a hollow compressor body having a motor chamber for housing the motor are sucked into the compressor body. An electric compressor that compresses fluid by each scroll member and discharges the fluid to the outside of the main body of the compressor, and after the fluid compressed by each scroll member passes through the other end surface side of the movable scroll member and one end side of the drive shaft, the compressor A flow path discharged outside the main body is formed.

  As a result, the fluid compressed by each scroll member passes through the other end surface of the movable scroll member and the one end side of the drive shaft, and is then discharged out of the compressor main body. Therefore, the movable scroll member is fixed by the compressed fluid. The axial force applied to the movable scroll member when the fluid is compressed by the scroll member and compressed by each scroll member is alleviated, and the lubricating oil contained in the compressed fluid is removed from the movable scroll member. It adheres to the end face side and one end side of the drive shaft, and the other end face side of the movable scroll member and one end side of the drive shaft are lubricated. In addition, since the compressed fluid passes through the other end face side of the movable scroll member and one end side of the drive shaft and is discharged to the outside of the compressor body, all the fluid compressed by each scroll member is outside the compressor body. Discharged.

  According to the present invention, the axial force applied to the movable scroll member when the fluid is compressed by each scroll member can be relaxed, and the other end face side of the movable scroll member and one end side of the drive shaft can be lubricated. Therefore, the durability of the support mechanism that supports the movable scroll member in the axial direction can be improved without providing a dedicated device for supplying oil to one end side of the drive shaft. Moreover, since all the fluid compressed by each scroll member can be discharged out of the compressor main body, there is an advantage that the compression efficiency is not lowered in order to improve the durability of the support mechanism of the movable scroll member. .

  1 and 2 show a first embodiment of the present invention. FIG. 1 is a side sectional view of an electric compressor, and FIG. 2 is a side sectional view of an essential part of the electric compressor.

  The electric compressor of the present embodiment includes a fixed scroll member 10, a movable scroll member 20 provided with an upper end surface facing the fixed scroll member, a drive shaft 30 having an upper end connected to the movable scroll member 20, A motor 40 that drives the drive shaft 30 and a hollow compressor body 50 that houses the scroll members 10 and 20, the drive shaft 30, and the motor 40 are provided.

  The fixed scroll member 10 is formed in a disc shape, and has a spiral projection 10a on the lower end surface. The spiral protrusion 10a extends downward. The fixed scroll member 10 is fixed to the compressor main body 50 by bolts (not shown) and partitions the compressor main body 50 in the vertical direction. A flow path 10 b that penetrates in the vertical direction is provided on the outer peripheral surface side of the fixed scroll member 10, and a discharge hole 10 c that penetrates the fixed scroll member 50 in the vertical direction is provided in the center of the fixed scroll member 10. That is, the refrigerant compressed by the scroll members 10 and 20 passes through the discharge hole 10 c and is discharged above the movable scroll member 10.

  The movable scroll member 20 is formed in a disk shape and has a spiral projection 20a on the upper surface. The spiral projection 20 a extends upward and engages with the spiral projection 10 a of the fixed scroll member 10. A boss portion 20b is provided on the lower surface of the movable scroll member 20, and the boss portion 20b is formed in a cylindrical shape extending downward. A concave portion 20 c into which the upper end of the drive shaft 30 is inserted is provided at the center of the movable scroll member 20. The movable scroll member 20 is provided with a plurality of radial flow paths 20d extending radially outward from the recesses 20c, and the radial flow paths 20d are spaced apart from each other in the circumferential direction. A part of the upper end surface of the movable scroll member 20 is in contact with the lower surface of the fixed scroll member 10. This prevents the compressed refrigerant from flowing back between the scroll members 10 and 20. The compressed refrigerant is a refrigerant that is compressed by the scroll members 10 and 20 and passes through the discharge hole 10c and the flow path 10b and flows through the lower end surface of the movable scroll member 20.

  The drive shaft 30 is formed in a cylindrical shape extending in the vertical direction, and an eccentric portion 30a that is eccentric with respect to other portions is provided at the upper end. The upper end side of the drive shaft 30 is rotatably supported by the first partition wall 61 via a known bearing 31. The lower end side of the drive shaft is rotatably supported by the second partition wall 62 via a known bearing 32. A third partition wall 63 is provided below the second partition wall 62. Each partition wall 61, 62, 63 is fixed to the compressor body 50, and partitions the interior of the compressor body 50 in the vertical direction. The first partition wall 61 is provided such that the upper surface thereof is positioned below the movable scroll member 20, and a predetermined gap is provided between the upper surface of the first partition wall 61 and the lower surface of the movable scroll member 20. . Further, a shielding plate 61 a abuts on the upper surface of the movable scroll member 20, and the shielding plate 61 a is fixed to the upper surface of the first partition wall 61. The shielding plate 61a prevents the compressed refrigerant from flowing backward to the upper surface side of the shielding plate 61a. The compressed refrigerant is a refrigerant which is compressed by the scroll members 10 and 20 and passes through the discharge hole 10c and the flow path 10b and circulates on the lower end surface side of the movable scroll member 20. Further, the second partition wall 62 and the third partition wall 63 store lubricating oil on the lower end side of the compressor body 50.

  The eccentric portion 30 a of the drive shaft 30 is connected to the boss portion 20 b of the movable scroll member 20 via a known bearing 33. The eccentric part 30a is rotatable with respect to the boss part 20b. The movable scroll member 20 is restricted in rotation by a rotation restriction mechanism (not shown). That is, when the drive shaft 30 rotates, the movable scroll member 20 connected to the eccentric portion 30a of the drive shaft 30 performs a predetermined turning motion.

  The drive shaft 30 is provided on the upper end side of the drive shaft 30 with an axial flow path 30b extending in the axial direction of the drive shaft 30 from the upper end face of the drive shaft 30, and the outer peripheral surface of the drive shaft 30 from the axial flow path 30b. A plurality of first radial flow paths 30c extending to the lower end side of the drive shaft 30 relative to the first radial flow paths 30c, and a plurality of first radial flow paths 30c extending from the axial flow path 30b to the outer peripheral surface of the drive shaft 30. A two-diameter flow path 30d is provided. Each second radial flow path is provided on the lower end surface side of the motor 40. That is, each of the flow paths 30b, 30c, and 30d can circulate the refrigerant from the upper end side of the drive shaft 30 to the lower end surface side of the motor 40.

  The motor 40 includes a cylindrical rotor 41 fixed to an axially central portion of the drive shaft 30, a plurality of winding cores 42 arranged in a radial direction outside the rotor 41, and a stator that holds each winding core 42. 43. The rotor 41 is made of a permanent magnet. The stator 43 is formed in a cylindrical shape and is fixed to the compressor body 50.

  The compressor main body 50 includes a cylindrical cylindrical portion 51 that extends in the vertical direction, an upper end portion 52 that closes the upper end of the cylindrical portion 51, and a lower end portion 53 that closes the lower end of the cylindrical portion 51. The upper end portion 52 and the lower end portion 53 are fixed to the cylindrical portion 51 by welding. A space above the first partition wall 61 in the compressor main body 50 is a compression chamber PR. The space partitioned by the first partition wall 61 and the third partition wall 63 is a motor chamber MR. A fixed scroll member 10 and a movable scroll member 20 are accommodated in the compression chamber PR, and a motor 40 is accommodated in the motor chamber MR.

  A suction port 54 and a discharge port 55 are provided on the side surface of the compressor body 50. The suction port 54 is formed of a cylindrical member that is inserted through the side surface of the compressor body 50, and sucks refrigerant between the fixed scroll member 10 and the first partition wall 61. The discharge port 55 is formed of a cylindrical member that is inserted through the side surface of the compressor body 50, and discharges refrigerant from the upper side of the motor chamber MR.

  In the electric compressor configured as described above, when the drive shaft 30 is rotated by the motor 40, the movable scroll member 20 performs a predetermined orbiting motion. At this time, the refrigerant flows into the compression chamber PR from the suction port 54, and the refrigerant flowing into the compression chamber PR is sucked between the spiral protrusion 10a of the fixed scroll member 10 and the spiral protrusion 20a of the movable scroll member 20. And compressed by the spiral protrusions 10a and 20a. The compressed refrigerant is discharged from the discharge hole 10 c of the fixed scroll member 10 to the upper side of the fixed scroll member 10, passes through the flow path 10 b and flows to the lower end surface side of the movable scroll member 20 and the upper end side of the drive shaft 30. To do.

  At this time, since the compressed refrigerant passes through the lower end surface side of the movable scroll member 20, the movable scroll member 20 is urged toward the fixed scroll member 10 by the compressed refrigerant, and the scroll members 10, 20 supply the refrigerant. The axial force applied to the movable scroll member 20 during compression is reduced.

  Further, since the compressed refrigerant contains lubricating oil, when the compressed refrigerant hits the lower end surface side of the movable scroll member 20 and the upper end side of the drive shaft 30, the lubricating oil in the refrigerant is moved to the movable scroll member 20. Then, it adheres to the drive shaft 30, and the lower end surface side of the movable scroll member 20 and the upper end side of the drive shaft 30 are lubricated.

  The compressed refrigerant passes through the lower end surface side of the movable scroll member 20 and the upper end side of the drive shaft 30 and is then discharged into the motor chamber MR through the flow paths 30b, 30c, and 30d provided in the drive shaft 30. Is done. Here, since each second radial flow path 30 d is provided on the lower end side of the motor 40, the compressed refrigerant is discharged to the lower end side of the motor 40. The refrigerant discharged into the motor chamber MR passes through the gap of the motor 40 and the like, and is then discharged out of the compressor main body 50 through a discharge port 55 provided on the upper side of the motor chamber MR. Since the refrigerant passes through the gap of the motor 40 and the like, the motor 40 and the drive shaft 30 are cooled by the refrigerant. Further, since the lubricating oil contained in the refrigerant adheres to the surface of the motor 40 and the like when the refrigerant passes through the gap of the motor 40, the amount of lubricating oil in the refrigerant discharged from the discharge port 55 is reduced. Can do. Further, since the compressed refrigerant passes through the lower end surface side of the movable scroll member 20 and the upper end side of the drive shaft 30 and is discharged out of the compressor main body 50, the refrigerant compressed by the scroll members 10 and 20 is discharged. All are discharged out of the compressor body 50.

  Thus, according to the present embodiment, the refrigerant compressed by the scroll members 10 and 20 passes through the lower end surface side of the movable scroll member 20 and the upper end side of the drive shaft 30 and then is discharged out of the compressor body 50. Therefore, when the movable scroll member 20 is biased toward the fixed scroll member 10 by the compressed refrigerant, the axial force applied to the movable scroll member 20 when the refrigerant is compressed by the scroll members 10, 20. Is reduced, and the lubricant contained in the compressed refrigerant adheres to the lower end surface side of the movable scroll member 20 and the upper end side of the drive shaft 30, whereby the lower end surface side of the movable scroll member 20 and the drive shaft 30. The upper end side is lubricated. That is, without providing a dedicated device for supplying oil to the upper end side of the drive shaft 30, it is possible to improve the durability of the bearings 31, 32, 33 and the like that support the movable scroll member 20 in the axial direction.

  Moreover, since all the refrigerant | coolants compressed by each scroll member 10 and 20 can be discharged out of the compressor main body 50, durability of each bearing 31, 32, 33 etc. which support the movable scroll member 20 to an axial direction is provided. In order to improve, compression efficiency is not reduced.

  Further, the flow paths 30b, 30c, and 30d that allow the refrigerant that has passed through the lower end surface side of the movable scroll member 20 and the upper end side of the drive shaft 30 to flow into the motor chamber MR from the upper end side of the drive shaft 30 in the drive shaft 30. Thus, when the refrigerant passes through the motor chamber MR, the lubricating oil contained in the refrigerant adheres to the surface of the motor 40 and the like, and the amount of lubricating oil in the refrigerant discharged from the discharge port 55 is reduced. be able to.

  3 and 4 show a second embodiment of the present invention. FIG. 3 is a side sectional view of the electric compressor, and FIG. 4 is a side sectional view of a main part of the electric compressor. In addition, the same code | symbol is attached | subjected and shown to the component equivalent to 1st Embodiment.

  The electric compressor of the present embodiment is equivalent to the drive shaft 30, motor 40, compressor main body 50, suction port 54, first partition wall 61, second partition wall 62, and third partition wall 63 equivalent to those of the first embodiment. A fixed scroll member 70, a movable scroll member 80 provided with an upper end surface facing the fixed scroll member 70, and an oil supply device 90 for supplying lubricating oil stored in the compressor body 50 to the suction port 54. And.

  The fixed scroll member 70 is formed in a disk shape and has a spiral projection 70a on the lower end surface. The spiral projection 70a extends downward. The fixed scroll member 70 is fixed to the compressor 50 by bolts (not shown) and partitions the interior of the compressor body 50 in the vertical direction. On the outer peripheral surface side of the fixed scroll member 70, a flow path 70b penetrating the fixed scroll member 70 in the vertical direction is provided. The first partition wall 61 of the present embodiment is provided with a flow path 61 b that penetrates the first partition wall 61 in the vertical direction, and the flow path 61 b is provided at a position corresponding to the flow path 70 b of the fixed scroll member 70. .

  The movable scroll member 80 is formed in a disk shape and has a spiral protrusion 80a on the upper surface. The spiral protrusion 80 a extends upward and engages with the spiral protrusion 70 a of the fixed scroll member 70. A boss 80b is provided on the lower surface of the movable scroll member 80, and the boss 80b is formed in a cylindrical shape extending downward. A discharge hole 80c through which the movable scroll member 80 is inserted in the vertical direction is provided at the center of the movable scroll member 80, and the discharge hole 80c communicates the upper end surface side of the movable scroll member 80 and the inside of the boss portion 80b. The refrigerant compressed by the scroll members 70 and 80 is discharged from the discharge hole 80c. The movable scroll member 80 is provided with a plurality of radial flow paths 80d extending radially outward from the discharge holes 80c, and the radial flow paths 80d are spaced apart from each other in the circumferential direction.

  A part of the upper end surface of the movable scroll member 80 is in contact with the fixed scroll member 70. Thereby, the compressed refrigerant is prevented from flowing back between the scroll members 70 and 80. Further, the shielding plate 61a fixed to the first partition wall 61 is in contact with the upper surface of the movable scroll member 80, so that the refrigerant compressed by the shielding plate 61a does not flow backward to the upper surface side of the shielding plate 61a. Here, the compressed refrigerant is a refrigerant that is compressed by the scroll members 70 and 80 and passes through the discharge holes 80c and the radial flow paths 80d and circulates on the lower end surface side of the movable scroll member 80. It is.

  The eccentric portion 30 a of the drive shaft 30 is connected to the boss portion 80 b of the movable scroll member 80 via a known bearing 33. The eccentric part 30a is rotatable with respect to the boss part 80b. The movable scroll member 80 is restricted in rotation by a rotation restriction mechanism (not shown). That is, when the drive shaft 30 rotates, the movable scroll member 80 connected to the eccentric portion 30a of the drive shaft 30 performs a predetermined turning motion.

  A discharge port 56 is provided on the upper end surface of the compressor body 50. The discharge port 56 is formed of a cylindrical member that is inserted through the upper end surface of the compressor main body 50, and discharges the refrigerant from the space above the fixed scroll member 70.

  The oil supply device 90 is provided in the middle of the communication pipe 91 that connects the lower end side of the compressor body 50 and the suction port 54, and the lubricating oil in the communication pipe 91 according to the rotation of the drive shaft 30. And a well-known pump 92 that circulates to the inlet 54 side by a predetermined amount, and the lubricating oil stored on the lower end side of the compressor body 50 by the second partition wall 62 and the third partition wall 63 is supplied to the inlet port. 54.

  In the electric compressor configured as described above, when the drive shaft 30 is rotated by the motor 40, the movable scroll member 80 performs a predetermined orbiting motion. At this time, the refrigerant flows into the compression chamber PR from the suction port 54, and the refrigerant flowing into the compression chamber PR is sucked between the spiral projection 70 a of the fixed scroll member 70 and the spiral projection 80 a of the movable scroll member 80. And compressed by the spiral protrusions 70a and 80a. Here, since a predetermined amount of lubricating oil is supplied to the suction port 54 by the oil supply device 90, a predetermined amount of lubrication is applied to the refrigerant that passes through the suction port 54 and is sucked between the scroll members 70 and 80. Oil is mixed.

  The compressed refrigerant is discharged to the lower side of the movable scroll member 80 from the discharge hole 80c of the movable scroll member 80 and each radial flow path 80d, and flows to the lower end surface side of the movable scroll member 80 and the upper end side of the drive shaft 30. Thereby, as in the first embodiment, the axial force applied to the movable scroll member 80 is alleviated, and the lower end surface side of the movable scroll member 80 and the upper end side of the drive shaft 30 are lubricated.

  Here, since the refrigerant compressed by the scroll members 70 and 80 is discharged to the lower end surface side of the movable scroll member 80 through the discharge holes 80c of the movable scroll member 80, the refrigerant is compressed without providing a complicated flow path. The refrigerant can be circulated to the lower end surface side of the movable scroll member 80, and the movable scroll member 80 can be reliably urged toward the fixed scroll member 70 by a simple structure.

  Further, since the lubricating oil is supplied to the refrigerant sucked into the scroll members 70 and 80 by the oil supply device 90, the lower end surface side of the movable scroll member 80 and the upper end side of the drive shaft 30 are reliably lubricated by the lubricating oil. Is done.

  The compressed refrigerant passes through the lower end surface side of the movable scroll member 80 and the upper end side of the drive shaft 30 and is then discharged into the motor chamber MR through the flow paths 30b, 30c, and 30d provided in the drive shaft 30. Is done. The refrigerant discharged into the motor chamber MR passes through the gap of the motor 40 and the like, then passes through the flow path 61b of the first partition wall 61 and the flow path 70b of the fixed scroll member 70, and from the discharge port 56 to the compressor main body 50. It is discharged outside. Accordingly, as in the first embodiment, the amount of lubricating oil in the refrigerant discharged from the discharge port 56 can be reduced, and all the refrigerant compressed by the scroll members 70 and 80 is compressed by the compressor main body 50. It is discharged outside.

  As described above, according to the present embodiment, the refrigerant compressed by the scroll members 70 and 80 passes through the lower end surface side of the movable scroll member 80 and the upper end side of the drive shaft 30 and then is discharged out of the compressor body 50. Therefore, the movable scroll member 80 is urged toward the fixed scroll member 70 by the compressed refrigerant, and the lubricating oil contained in the compressed refrigerant is applied to the lower end surface side of the movable scroll member 80 and the drive shaft 30. The durability of each of the bearings 31, 32, 33 that supports the movable scroll member 80 in the axial direction can be improved without providing a dedicated device for supplying oil to the upper end side of the drive shaft 30. You can plan.

  Further, since the lubricating oil is supplied to the refrigerant sucked into the scroll members 70 and 80 by the oil supply device 90, the lower end surface side of the movable scroll member 80 and the upper end side of the drive shaft 30 are reliably lubricated by the lubricating oil. This is extremely advantageous for improving the durability of the bearings 31, 32, 33 and the like that support the movable scroll member 80 in the axial direction.

  In the present embodiment, the second radial flow paths 30d are provided on the lower end side of the motor 40. However, as shown in FIG. It can also be provided on the side. In this case, the compressed refrigerant is discharged to the upper end side of the motor 40 in the motor chamber MR, and after the discharged refrigerant passes through the gap of the motor 40, the flow path 61b of the first partition wall 61 and the fixed scroll member 70 passes through the flow passage 70b and is discharged from the discharge port 56 to the outside of the compressor body 50. For this reason, since the refrigerant passes through the gap of the motor 40 and the like, the lubricating oil contained in the refrigerant adheres to the surface of the motor 40 and the like, and the amount of lubricating oil in the refrigerant discharged from the discharge port 56 is reduced. be able to.

Side surface sectional drawing of the electric compressor which shows the 1st Embodiment of this invention Side view of the main part of the electric compressor Side surface sectional drawing of the electric compressor which shows the 2nd Embodiment of this invention Side view of the main part of the electric compressor Side surface sectional drawing of the electric compressor which shows the modification of the 2nd radial direction flow path in this embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Fixed scroll, 10a ... Spiral protrusion, 10c ... Discharge hole, 20 ... Movable scroll member, 20a ... Spiral protrusion, 20b ... Boss part, 20c ... Recessed part, 20d ... Radial flow path, 30 ... Drive shaft, 30a ... Eccentric part, 30b ... Axial channel, 30c ... First radial channel, 30d ... Second radial channel, 31 ... Bearing, 32 ... Bearing, 33 ... Bearing, 40 ... Motor, 41 ... Rotor, 42 ... Core, 43 ... Stator, 50 ... Compressor body, 51 ... Cylinder, 52 ... Upper end, 53 ... Lower end, 54 ... Suction port, 55 ... Discharge port, 56 ... Discharge port, 61 ... First partition wall 62 ... second partition wall, 63 ... third partition wall, 70 ... fixed scroll member, 70a ... spiral projection, 80 ... movable scroll member, 80a ... spiral projection, 80b ... boss part, 80c ... discharge hole, 80d ... Diameter channel 90 ... oil supply device, 91 ... communicating pipe, 92 ... pumps, PR ... compression chamber, MR ... motor chamber.

Claims (4)

A fixed scroll member, a movable scroll member provided so that one end face thereof faces the fixed scroll member, a drive shaft having one end connected to the movable scroll member and causing the movable scroll member to perform a predetermined turning motion, and a drive shaft A compressor that houses a motor to be driven, a compression chamber that houses each scroll member, and a hollow compressor body that has a motor chamber that houses the motor, and compresses the fluid sucked into the compressor body by each scroll member In the electric compressor that discharges outside the body,
An electric compressor characterized in that a flow path is formed in which the fluid compressed by each scroll member is discharged to the outside of the compressor body after passing through the other end face side of the movable scroll member and one end side of the drive shaft. The electric compressor according to claim 1, wherein the movable scroll member is provided with a discharge hole for discharging the fluid compressed by each scroll member to the other end surface side of the movable scroll member. The flow path which distribute | circulated the fluid which passed through the other end surface side of the movable scroll member and the one end side of a drive shaft from the one end side of a drive shaft in a motor chamber was provided in the said drive shaft. The electric compressor as described. 4. The electric compressor according to claim 1, further comprising an oil supply device that supplies the lubricating oil accumulated in the motor chamber to the fluid before being compressed by each of the scroll members.

Images