JP2016111888A - Stator, motor, and compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stator capable of surly preventing an inter-coil insulator from coming off in a simple structure.SOLUTION: A stator 5 comprises: a stator core 510 that has a plurality of teeth parts 512 arranged in the circumferential direction with intervals; an insulator 530 that is attached to both end surfaces in an axial direction of the stator core 510; a coil 520 that is wound in the teeth part 512 of stator core 510 through the insulator 530; and a sheet-like inter-coil insulator 100, a part of which is arranged between the coils 520 which are adjacent each other in the circumferential direction. The inter-coil insulator 100 is folded and in two using a straight line along with an axial direction as a pleat, and includes: an inter-coil insertion part 101 disposed between the coils 520; and locking parts 102b and 102b that are arranged to both ends in the axial direction of the inter-coil insertion part 101 by a cutting along with a plane surface orthogonal to an axis, and is folded to an outer side so as to be locked to the coil 520.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a stator, a motor, and a compressor.

  Conventionally, as a compressor, the upper and lower ends of interphase insulating paper for insulating between concentrated winding coils are provided with folded portions that are folded back at a fold perpendicular to the axial direction to prevent the interphase insulating paper from shifting or dropping. There is a motor provided with a motor having a stator (see, for example, Japanese Patent No. 4470168 (Patent Document 1)).

Japanese Patent No. 4470168

  By the way, in the motor of the compressor, since heat is applied to the interphase insulating paper and the folded portion tries to return to the axial direction due to thermal deformation, there is a problem that the interphase insulating paper cannot be reliably prevented from being displaced or dropped. . Further, in the motor of the compressor, since the rotation surface in the direction in which the folded portion of the interphase insulating paper is deformed by the folding is substantially parallel to the axial direction, a force that shifts the interphase insulating paper in the axial direction is applied. The folded portion comes into contact with the coil so that the folded portion can easily return in the axial direction. For this reason, in the motor described above, the folded portion is suppressed by the lead wire portion by bundling the lead wire portion using a binding material. However, the configuration becomes complicated, the assembly takes time, and the manufacturing cost increases. End up.

  Therefore, an object of the present invention is to provide a stator that can reliably prevent the inter-coil insulator from coming off in the axial direction with a simple configuration.

  Moreover, the subject of this invention is providing the motor provided with the said stator.

  Furthermore, the subject of this invention is providing the compressor provided with the said motor.

In order to solve the above problems, the stator of the present invention is:
A stator core having a plurality of teeth arranged at intervals in the circumferential direction;
An insulator attached to both axial end faces of the stator core;
A coil wound around the teeth portion of the stator core via the insulator;
A sheet-like inter-coil insulator having a part disposed between the coils adjacent to each other in the circumferential direction;
The inter-coil insulator is
An inter-coil insertion portion disposed between the coils, which is folded between at least two by folding a straight line along the axial direction;
At least one of both ends in the axial direction of the inter-coil insertion portion has a locking portion provided by cutting along a plane intersecting the axis and bent outward so as to be locked to the coil or the insulator. It is characterized by that.

  According to the above configuration, the inter-coil insertion portion of the sheet-like inter-coil insulator is folded between at least two by folding a straight line along the axial direction and disposed between the coils adjacent to each other in the circumferential direction. In this state, an opening force is applied so that the inter-coil insertion portion returns to return due to elastic deformation, and the inter-coil insertion portion is held between the coils. In this state, the locking portions provided at both ends in the axial direction of the inter-coil insertion portion are locked to the coil (or insulator). Since this locking portion is bent outward so as to be locked to the coil (or insulator) by cutting along the plane intersecting the axis in the sheet-like inter-coil insulator, the sheet of the locking portion It touches the coil (or insulator) from the axial direction not at the face but at the edge. Thus, since the latching portion of the inter-coil insulator is not folded back at the fold perpendicular to the axial direction, and the edge of the sheet of the latching portion is in contact with the coil (or insulator), the inter-coil insulation Even if a force that shifts in the axial direction is applied to the body, the bent state of the locking portion does not return. Therefore, it is possible to reliably prevent the inter-coil insulator from coming off in the axial direction with a simple configuration without using a binding member or the like.

  In addition, in the inter-coil insulator in which the locking portion is provided only at one end in the axial direction of the inter-coil insertion portion, even if a force that shifts from the locking portion side to the other in the axial direction is applied to the inter-coil insulator. Further, it is possible to reliably prevent the inter-coil insulator from coming off.

In one embodiment of the stator,
The inter-coil insertion portion of the inter-coil insulator is folded back into a substantially V-shaped cross section in a plan view orthogonal to the axis.
The locking portion of the inter-coil insulator has an opening angle larger than a V-shaped opening angle of the inter-coil insertion portion in a plan view orthogonal to the axis, and the cross-section of the inter-coil insertion portion is substantially the same. It has a substantially V-shaped cross section that opens in the same direction as the V-shaped opening direction.

  According to the above embodiment, the inter-coil insertion portion of the inter-coil insulator is folded back into a substantially V-shaped cross section in a plan view orthogonal to the axis, and the locking portion is inserted between the coils in the plan view orthogonal to the axis. Since the opening angle is larger than the opening angle of the V-shaped cross section of the section and the opening direction of the substantially V-shaped cross section of the inter-coil insertion section is opened in the same direction, The insulation of the inter-coil insulator can be removed without providing a recess or the like in the insulator for engaging the engaging portion of the inter-coil insulator by contacting the coil (or the insulator) in the axial direction with the edge of the sheet of the portion. Can be prevented.

In one embodiment of the stator,
The inter-coil insertion portion of the inter-coil insulator is folded back into a substantially V-shaped cross section in a plan view orthogonal to the axis.
The locking portion of the inter-coil insulator is folded back to the side opposite to the opening direction of the substantially coil-shaped cross section of the inter-coil insertion portion in plan view perpendicular to the axis.

  According to the above embodiment, the inter-coil insertion portion of the inter-coil insulator is folded back into a substantially V-shaped cross section in a plan view orthogonal to the axis, and the locking portion is inserted between the coils in the plan view orthogonal to the axis. Since the section is folded back to the side opposite to the opening direction of the substantially V-shaped section, by providing the insulator with a recess for locking the edge of the sheet of the locking section, the inter-coil insulator can be more securely removed. Can be prevented.

In one embodiment of the stator,
The inter-coil insertion portion of the inter-coil insulator is folded back into a substantially W-shaped cross section in a plan view orthogonal to the axis.
The locking portion of the inter-coil insulator is folded back on the opposite side to the two opening directions having a substantially W-shaped cross section of the inter-coil insertion portion in a plan view orthogonal to the axis.

  According to the above embodiment, the inter-coil insertion portion of the inter-coil insulator is folded back into a substantially W-shaped cross section in a plan view orthogonal to the axis, so that the inter-coil insertion portion is held between the coils by elastic deformation. Is larger than the substantially V-shaped cross section. Furthermore, since the locking portion is folded back on the opposite side to the two opening directions of the substantially W-shaped cross section of the inter-coil insertion portion in a plan view orthogonal to the axis, the edge of the sheet of the locking portion is engaged. By providing the insulator with the recess to be stopped, it is possible to more reliably prevent the inter-coil insulator from coming off.

In one embodiment of the stator,
In the inter-coil insertion portion of the inter-coil insulator, the opening direction having a substantially V-shaped cross section in the plan view orthogonal to the axis is the radial direction and the rotor side.

  According to the above embodiment, the inter-coil insulator is coiled so that the inter-coil insertion portion of the inter-coil insulator has a substantially V-shaped opening direction in a plan view perpendicular to the axis and is in the radial direction and the rotor side. Since the opening between the coils has a substantially V-shaped opening outward due to thermal deformation due to temperature rise, the inter-coil insulator is removed from the teeth of the stator core in the radial direction and on the rotor side. Can be prevented.

In one embodiment of the stator,
The inter-coil insertion portion of the inter-coil insulator has an opening direction having a substantially V-shaped cross section in a plan view perpendicular to the axis in the radial direction and on the side opposite to the rotor. It has a pop-out prevention surface provided along the direction.

  According to the above-described embodiment, the inter-coil insulation portion of the inter-coil insulator is insulated so that the opening direction having a substantially V-shaped cross section in a plan view perpendicular to the axis is on the side opposite to the rotor in the radial direction. By disposing the body between the coils, the front end side of the locking portion is brought into contact with the insulator, and the locking portion of the inter-coil insulator is thermally deformed due to a temperature rise and tries to return to the state before the folding. It becomes possible to regulate with an insulator. Further, the jump-out preventing surface provided along the axial direction at the bottom of the substantially V-shaped cross section of the inter-coil insertion portion prevents the inter-coil insulator from coming out radially between the teeth of the stator core and toward the rotor. Can be prevented.

In the motor of the present invention,
A rotor,
One of the above stators arranged to face the rotor in the radial direction is provided.

  According to the above configuration, it is possible to reliably prevent the inter-coil insulators of the stator from coming off, and to realize a highly reliable motor.

The compressor of the present invention is
A sealed container;
A compression mechanism disposed in the sealed container;
The motor is disposed in the hermetic container and drives the compression mechanism.

  According to the above configuration, even if a force that shifts in the axial direction with respect to the inter-coil insulator of the stator works due to the high-temperature and high-pressure refrigerant gas flowing in the sealed container by driving the compression mechanism using the motor, the coil It is possible to realize a highly reliable compressor without the interstitial insulators coming off.

  As is clear from the above, according to the present invention, a stator that can reliably prevent the inter-coil insulator from coming off in the axial direction with a simple configuration, a motor including the stator, and a compressor including the motor are realized. There is.

FIG. 1 is a longitudinal sectional view of a compressor according to a first embodiment of the present invention. FIG. 2 is a plan view of the main part of the compressor. FIG. 3 is a cross-sectional view of the main part including the motor of the compressor. FIG. 4 is an enlarged view of the main part of the motor. FIG. 5 is a longitudinal sectional view taken along line VV in FIG. FIG. 6 is a development view of the inter-coil insulator of the motor. FIG. 7 is a perspective view of the inter-coil insulator. FIG. 8 is a development view of a modified example of the inter-coil insulator. FIG. 9 is an enlarged view of a main part of the motor of the compressor according to the second embodiment of the present invention. 10 is a longitudinal sectional view taken along line XX of FIG. FIG. 11 is a development view of the inter-coil insulator of the motor. FIG. 12 is a perspective view of the inter-coil insulator. FIG. 13 is an enlarged view of a main part of the motor of the compressor according to the third embodiment of the present invention. 14 is a longitudinal sectional view taken along line XIV-XIV in FIG. FIG. 15 is a development view of the inter-coil insulator of the motor. FIG. 16 is a perspective view of the inter-coil insulator. FIG. 17 is an enlarged view of a main part of the motor of the compressor according to the fourth embodiment of the present invention. 18 is a longitudinal sectional view taken along line XVIII-XVIII in FIG. FIG. 19 is a development view of the inter-coil insulator of the motor. FIG. 20 is a perspective view of the inter-coil insulator.

  Hereinafter, the stator of this invention is demonstrated in detail by embodiment of illustration.

[First Embodiment]
FIG. 1 shows a longitudinal sectional view of a compressor according to a first embodiment of the present invention.

  As shown in FIG. 1, the compressor according to the first embodiment includes a sealed container 1, a compression mechanism unit 2 disposed in the sealed container 1, and a compressor mechanism unit 2 disposed in the sealed container 1. And a motor 3 that is driven through a shaft 12.

  This compressor is a so-called vertical high-pressure dome type rotary compressor, in which a compression mechanism portion 2 is disposed on the lower side of the sealed container 1 and a motor 3 is disposed on the upper side of the compression mechanism portion 2. ing. The compressor 6 is driven by the rotor 6 of the motor 3 via the shaft 12. The motor 3 is an inner rotor type motor.

  The compression mechanism section 2 sucks refrigerant gas from the accumulator 10 through the suction pipe 11. The refrigerant gas is obtained by controlling a condenser, an expansion mechanism, and an evaporator (not shown) that constitute an air conditioner as an example of a refrigeration system together with the compressor. This refrigerant is, for example, carbon dioxide, HFC such as HC and R410A, and HCFC such as R22 and R32.

  The compressor discharges compressed high-temperature and high-pressure refrigerant gas from the compression mechanism unit 2 to fill the inside of the sealed container 1 and cools the motor 3 through a gap between the stator 5 and the rotor 6 of the motor 3. After that, the discharge pipe 13 provided on the upper side of the motor 3 is discharged to the outside.

  An oil reservoir 9 in which lubricating oil is stored is formed in the lower portion of the high-pressure region in the closed container 1. This lubricating oil moves from the oil reservoir 9 through an oil passage (not shown) provided in the shaft 12 to a sliding portion such as a bearing of the compression mechanism 2 or the motor 3, and this sliding Lubricate the part. Examples of the lubricating oil include polyalkylene glycol oil (polyethylene glycol, polypropylene glycol, etc.), ether oil, ester oil, mineral oil, and the like.

  The compression mechanism unit 2 includes a cylinder 21 attached to the inner surface of the sealed container 1, and an upper end plate member 50 and a lower end plate member 60 attached to upper and lower open ends of the cylinder 21. Prepare. A cylinder chamber 22 is formed by the cylinder 21, the upper end plate member 50, and the lower end plate member 60.

  The upper end plate member 50 includes a disk-shaped main body 51 and a boss 52 provided upward in the center of the main body 51. The shaft 12 is inserted through the main body 51 and the boss 52.

  The main body 51 is provided with a discharge port 51 a that communicates with the cylinder chamber 22. A discharge valve 31 is attached to the main body 51 so as to be located on the opposite side of the main body 51 from the cylinder 21. The discharge valve 31 is a reed valve, for example, and opens and closes the discharge port 51a.

  A cup-shaped muffler cover 40 is attached to the main body 51 so as to cover the discharge valve 31 on the side opposite to the cylinder 21. The muffler cover 40 is fixed to the main body 51 by bolts 35 or the like. The muffler cover 40 has a boss portion 52 inserted therethrough.

  A muffler chamber 42 is formed by the muffler cover 40 and the upper end plate member 50. The muffler chamber 42 and the cylinder chamber 22 communicate with each other through a discharge port 51a.

  The muffler cover 40 has a hole 43 that communicates the muffler chamber 42 with the outside of the muffler cover 40.

  The lower end plate member 60 includes a disc-shaped main body portion 61 and a boss portion 62 provided downward in the center of the main body portion 61. The main body 61 and the boss 62 are inserted through the shaft 12.

  Thus, one end of the shaft 12 is supported by the upper end plate member 50 and the lower end plate member 60. That is, the shaft 12 is cantilevered. One end portion (support end side) of the shaft 12 enters the inside of the cylinder chamber 22.

  An eccentric pin 26 is provided on the support end side of the shaft 12 so as to be positioned in the cylinder chamber 22 on the compression mechanism portion 2 side. The eccentric pin 26 is fitted to the roller 27. The roller 27 is disposed in the cylinder chamber 22 so as to be able to revolve, and a compression action is performed by the revolving motion of the roller 27.

  In other words, one end of the shaft 12 is supported by the housing 7 of the compression mechanism 2 on both sides of the eccentric pin 26. The housing 7 includes an upper end plate member 50 and a lower end plate member 60.

  Next, the compression action of the cylinder 21 of the compression mechanism 2 will be described with reference to FIG. FIG. 2 shows a plan view of the main part of the compressor.

  As shown in FIG. 2, the cylinder chamber 22 is partitioned by a blade 28 provided integrally with the roller 27. That is, in the chamber on the right side of the blade 28, the suction pipe 11 opens on the inner surface of the cylinder chamber 22 to form a suction chamber (low pressure chamber) 22a. On the other hand, the chamber on the left side of the blade 28 has a discharge port 51a (shown in FIG. 1) opened on the inner surface of the cylinder chamber 22 to form a discharge chamber (high pressure chamber) 22b.

  Semi-cylindrical bushes 25, 25 are in close contact with both surfaces of the blade 28 for sealing. The space between the blade 28 and the bushes 25, 25 is lubricated with lubricating oil.

  The eccentric pin 26 rotates eccentrically with the shaft 12, and the roller 27 fitted to the eccentric pin 26 revolves while the outer peripheral surface of the roller 27 is in contact with the inner peripheral surface of the cylinder chamber 22.

  As the roller 27 revolves in the cylinder chamber 22, the blade 28 moves forward and backward while holding both side surfaces of the blade 28 by the bushes 25 and 25. As a result, a low-pressure refrigerant gas is sucked into the suction chamber 22a from the suction pipe 11 and compressed to a high pressure in the discharge chamber 22b, and then the high-pressure refrigerant gas is discharged from the discharge port 51a (shown in FIG. 1).

  Thereafter, as shown in FIG. 1, the refrigerant gas discharged from the discharge port 51 a is discharged to the outside of the muffler cover 40 via the muffler chamber 42.

  FIG. 3 shows a cross-sectional view of the main part including the motor 3 of the compressor. 3, the same components as those in FIG. 1 are denoted by the same reference numerals.

  As shown in FIG. 3, the motor 3 attached to the hermetic container 1 includes a rotor 6 and a stator 5 disposed on the radially outer side of the rotor 6 via an air gap.

  The rotor 6 includes a columnar rotor core 610 and six magnets 620 embedded in the rotor core 610 at intervals in the circumferential direction. The rotor core 610 is made of, for example, laminated electromagnetic steel plates. A shaft 12 is attached to the central hole of the rotor core 610. Magnet 620 is a flat permanent magnet.

  The stator 5 is arranged to face the rotor 6 in the radial direction. The stator 5 includes a stator core 510, insulators 530 attached to both end surfaces of the stator core 510 in the axial direction, and a coil 520 wound around the stator core 510 and the insulator 530 together. In FIG. 3, the coil 520 and the insulator 530 are partially omitted.

  The stator core 510 is made of, for example, a plurality of stacked steel plates, and is fitted into the sealed container 1 by shrink fitting or the like. The stator core 510 has a cylindrical back yoke portion 511 and nine teeth portions 512 that protrude radially inward from the inner peripheral surface of the back yoke portion 511 and are arranged at substantially equal intervals in the circumferential direction.

  The coil 520 is a so-called concentrated winding that is wound around each of the tooth portions 512 and is not wound around the plurality of tooth portions 512. The motor 3 has a so-called 6 pole 9 slot. The rotor 6 is rotated together with the shaft 12 by an electromagnetic force generated in the stator 5 by passing a current through the coil 520.

  The insulator 530 is sandwiched between the stator core 510 and the coil 520 to insulate the stator core 510 and the coil 520 from each other. The insulator 530 is molded by resin, for example. The insulator 530 includes an annular portion 531, nine tooth portions 532 that protrude radially inward from the inner peripheral surface of the annular portion 531 and are arranged at substantially equal intervals in the circumferential direction, and the axial direction of the annular portion 531. And a cylindrical outer wall portion 533 standing on the end face. The tooth portions 532 are positioned opposite to both end surfaces in the axial direction of the teeth portion 512 of the stator core 510.

  A slot insulator 90 is provided along the inner peripheral surfaces of the tooth portion 512 and the back yoke portion 511 in the slot portion 514 that is a space between adjacent tooth portions 512 in the circumferential direction of the stator core 510. .

  FIG. 4 shows an enlarged view of a main part of the motor 3, and the same reference numerals are given to the same components as those in FIG.

  As shown in FIG. 4, the inter-coil insulator 100 is inserted between the coils 520 adjacent in the circumferential direction. The inter-coil insulator 100 and the slot insulator 90 are made of a sheet-like resin material such as a resin insulating film or a resin molding, and for example, polyethylene terephthalate (PET) or the like is used.

  The inter-coil insulator 100 is engaged with the inter-coil insertion portion 101 having a substantially V-shaped cross section that is folded into two by folding a straight line along the axial direction, the support portions 102a and 102a, and the coil 520. The locking portions 102b and 102b are folded back to the outside. The support portions 102 a and 102 a and the locking portions 102 b and 102 b are provided at both ends in the axial direction of the inter-coil insertion portion 101.

  The locking portions 102b, 102b have an opening angle larger than the opening angle of the cross-section V-shaped section of the inter-coil insertion section 101 and a substantially V-shaped cross section of the inter-coil insertion section 101 in plan view perpendicular to the axis. It has a substantially V-shaped cross section that opens in the same direction as the opening direction. Further, in the inter-coil insertion portion 101, the opening direction having a substantially V-shaped cross section in the plan view orthogonal to the axis is the radially inward direction (the rotor 6 side).

  The slot insulator 90 is sandwiched between the tooth portion 512 and the coil 520. The slot insulator 90 has a first protrusion 91 and a second protrusion 92. The first protruding portion 91 protrudes in the circumferential direction toward the slot portion 514 with respect to the end 512a at the tip portion 512A of the adjacent one of the tooth portions 512. The second projecting portion 92 projects in the circumferential direction toward the slot portion 514 with respect to the end 512b of the tip portion 512A of the other adjacent tooth portion 512. The tip of the first protrusion 91 and the tip of the second protrusion 92 are opposed to each other in the circumferential direction and are slightly separated from each other.

  FIG. 5 is a longitudinal sectional view taken along line VV in FIG. 4, and the same reference numerals are given to the same components as those in FIGS.

  As shown in FIG. 5, the inter-coil inserting portions 101 of the inter-coil insulator 100 are provided at both ends in the axial direction of the inter-coil inserting portions 101 with the inter-coil inserting portions 101 inserted between the coils 520 adjacent to each other in the circumferential direction. The locking portions 102b and 102b are locked to the coil 520. As a result, the edge of the sheet of the locking portions 102b and 102b abuts against the coil end of the coil 520 (shown in FIG. 4), regardless of which direction the axially offset force is applied to the inter-coil insulator 100. This prevents the inter-coil insulator 100 from coming off in the axial direction.

  FIG. 6 is a development view of the inter-coil insulator 100. As shown in FIG. 6, the upper end of the inter-coil insulator 100 having the substantially rectangular inter-coil insertion portion 101 is arranged in the longitudinal direction. Incisions 103 are provided along a plane orthogonal to each other. The notches 103 and 103 are linearly provided from the outside so as to be spaced from the center line L11 in the longitudinal direction of the inter-coil insertion portion 101, and are connected to the inter-coil insertion portion 101 above the inter-coil insertion portion 101. The support portions 102a and 102a are left. The notches 103 and 103 thus provided provide rectangular locking portions 102b and 102b extending laterally from the support portions 102a and 102a, respectively.

  In the first embodiment, the linear notches 103 and 103 along the plane orthogonal to the longitudinal direction are provided at the upper end in the longitudinal direction of the inter-coil insulator 100, but orthogonal to the longitudinal direction. A cut along the intersecting plane may be used instead. The shape of the cut is not limited to a straight line.

  Similarly, cuts 103, 103 along a plane orthogonal to the longitudinal direction are provided at the lower end in the longitudinal direction of the rectangular inter-coil insertion portion 101 as well. The notches 103 and 103 are linearly provided from the outside so as to be spaced from the center line L11 of the inter-coil inserting portion 101, and the support portions 102a and 102a remain on the upper side of the inter-coil inserting portion 101. The notches 103 and 103 thus provided provide rectangular locking portions 102b and 102b extending laterally from the support portions 102a and 102a, respectively. The front ends of the locking portions 102b and 102b protrude to the side of the inter-coil insertion portion 101.

  The cuts 103 and 103 of the inter-coil insulator 100 are provided in a straight line. However, a circular hole or the like may be provided on the terminal end side of the cut so that the cut is not easily broken. Moreover, in this embodiment, although the front end side of the latching | locking parts 102b and 102b protrudes laterally rather than the inter-coil insertion part 101, it is the same as the inter-coil insertion part 101, or from the width | variety of the inter-coil insertion part 101. May be shorter.

  The inter-coil insertion portion 101 is folded back into two at the center line L11. Each of the locking portions 102b and 102b is engaged with a coil end of a coil 520 (shown in FIGS. 3 and 4) by folding a straight line L12 and L12 extending outward in the longitudinal direction (axial direction) from the end of the notch 103. Folded outward to stop (see FIG. 7). Accordingly, the upper and lower support portions 102a of the inter-coil insertion portion 101 support the locking portions 102b, respectively.

  In the first embodiment, the locking portions 102b and 102b are provided at both ends in the longitudinal direction of the rectangular inter-coil insertion portion 101. However, as in the modification shown in FIG. You may provide a latching | locking part only in the end of a longitudinal direction. In this case, it is possible to reliably prevent the inter-coil insulator from coming out from between the coils from one end side (locking portion side) in the longitudinal direction of the inter-coil insertion portion toward the other end side.

  According to the stator 5 having the above-described configuration, the inter-coil insertion portion 101 is disposed between the coils 520 adjacent to each other in the circumferential direction, and the inter-coil insertion portion 101 folded back into two of the sheet-like inter-coil insulators 100 is disposed. An opening force is applied between the coils 520 so that the 101 is turned back by elastic deformation. In this state, locking portions 102 b provided at both ends in the axial direction of the inter-coil insertion portion 101 are locked to the coil 520. Since this locking portion is folded outward so as to be locked to the coil 520 by a notch 103 along a plane intersecting the axis of the sheet-like inter-coil insulator 100, the sheet of the locking portion 102b It contacts the coil end of the coil 520 from the axial direction not at the surface but at the edge. As described above, the fold of the locking portion 102b of the inter-coil insulator 100 is not orthogonal to the axial direction, and the edge of the sheet of the locking portion 102b is in contact with the coil 520. However, even if a force deviating in the axial direction is applied, the locking portion 102b does not return. Moreover, since the edge of the sheet | seat of the latching | locking part 102b is in line contact with the coil 520, the heat which the latching | locking part 102b receives from a coil end also decreases, and the thermal deformation of the latching | locking part 102b can be suppressed. Accordingly, it is possible to reliably prevent the inter-coil insulator 100 from coming off in the axial direction with a simple configuration.

  Further, in the stator 5, the inter-coil insertion portion 101 of the inter-coil insulator 100 is folded back into a substantially V-shaped cross section in a plan view orthogonal to the axis, and the locking portion 102b is in a plan view orthogonal to the axis. The opening angle is larger than the opening angle of the V-shaped cross section of the inter-coil insertion portion 101, and the cross-sectional insertion portion 101 has a substantially V-shaped cross section that opens in the same direction as the opening direction of the substantially V-shaped cross section. Accordingly, the insulator 530 is provided with a recess or the like for locking the locking portion 102b of the inter-coil insulator 100 by contacting the coil end of the coil 520 in the axial direction with the edge of the sheet of the locking portion 102b. The inter-coil insulator 100 can be prevented from coming off without being provided.

  The inter-coil insulator 100 is disposed between the coils 520 so that the inter-coil insertion portion 101 of the inter-coil insulator 100 has a substantially V-shaped opening direction in a plan view perpendicular to the axis. It is arranged. As a result, an opening having a substantially V-shaped cross section of the inter-coil insertion portion 101 spreads outward due to thermal deformation caused by a temperature rise (maximum 130 ° C. to 150 ° C.) in the sealed container 1, so that the inter-coil insulator 100 is connected between the coils 520. As a result, the inter-coil insulator 100 can be prevented from coming out radially between the teeth 512 of the stator core 510 and toward the rotor 6.

  Moreover, according to the motor 3 having the above-described configuration, the inter-coil insulator 100 of the stator 5 can be reliably prevented from coming off, and the highly reliable motor 3 can be realized.

  Further, according to the compressor having the above configuration, the motor 3 is used to drive the compression mechanism unit 2, so that the shaft with respect to the inter-coil insulator 100 of the stator 5 by the high-temperature and high-pressure refrigerant gas flowing in the sealed container 1. Even if a force deviating in the direction is applied, the inter-coil insulator 100 does not come out, and a highly reliable compressor can be realized.

  In the above compressor, the pushing load due to the differential pressure in the hermetic container 1 acts on the inter-coil insulator 100, and the inter-coil insulator 100 is easily pulled upward, so that the locking portion 102b of the inter-coil insulator 100 is on one side. In the case where only the insulating member 100 is provided, it is effective to provide the locking portion 102b below the inter-coil insulator 100, that is, below the stator 5, in order to prevent the inter-coil insulator 100 from coming off.

  In the first embodiment, the locking portions 102b and 102b of the inter-coil insulator 100 are folded outward so as to be locked to the coil 520. Not limited to this, it may be bent outward so as to be engaged with the coil without providing a fold.

[Second Embodiment]
FIG. 9 shows an enlarged view of a main part of the motor 3 of the compressor according to the second embodiment of the present invention. The motor 3 of the compressor of the second embodiment has the same configuration as the motor 3 of the compressor of the first embodiment except for the inter-coil insulator, and the same reference numerals are assigned to the same components. ing.

  As shown in FIG. 9, the inter-coil insulator 200 is inserted between the coils 520 adjacent in the circumferential direction. Like the slot insulator 90, the inter-coil insulator 200 is made of a sheet-like resin material such as a resin insulating film or a resin molded product, and uses, for example, polyethylene terephthalate (PET).

  The inter-coil insulator 200 is locked to the inter-coil insertion portion 201 having a substantially V-shaped cross section that is folded into two by folding a straight line along the axial direction, the support portions 202a and 202a, and the coil 520. The locking portions 202b and 202b are folded outward so that the locking portions 202b and 202b are pulled out to the side from the distal end side. The support portions 202a and 202a, the locking portions 202b and 202b, and the removal preventing portions 202c and 202c are provided at one end in the axial direction of the inter-coil insertion portion 201.

  Further, the outer wall 533 of the insulator 530 is provided with grooves 534 and 534 as an example of recesses for locking the edges of the sheets of the locking portions 202b and 202b in the radial direction.

  The inter-coil insertion portion 201 of the inter-coil insulator 200 is folded back into a substantially V-shaped cross section in a plan view orthogonal to the axis, and the locking portions 202b and 202b are inter-coil insertion portions in the plan view orthogonal to the axis. 201 is folded back to the side opposite to the opening direction of the substantially V-shaped cross section of 201, so that grooves 534, 534 for locking the locking portions 202b, 202b are provided in the outer wall portion 533 of the insulator 530, thereby inter-coil insulation. It is possible to more reliably prevent the body 200 from coming off. Moreover, the groove parts 534 and 534 regulate the movement of the locking parts 202b and 202b in the radial direction.

  Further, the locking portions 202b, 202b can be prevented from coming off from the grooves 534, 534 of the insulator 530 by the stoppers 202c, 202c on the tip side of the locking portions 202b, 202b of the inter-coil insulator 200. .

  Further, in the inter-coil insertion portion 201, the opening direction having a substantially V-shaped cross section in the plan view orthogonal to the axis is radially inward.

  10 shows a longitudinal sectional view taken along line XX in FIG. 4, and the same reference numerals are given to the same components as those in FIGS.

  As shown in FIG. 10, the inter-coil inserting portion 201 of the inter-coil insulator 200 is provided at one end in the axial direction of the inter-coil inserting portion 201 in a state where the inter-coil inserting portion 201 is inserted between the coils 520 adjacent to each other in the circumferential direction. The locking portions 202b and 202b are locked to the insulator 530. Thereby, it is possible to reliably prevent the inter-coil insulator 200 from being removed from one end side (the locking portions 202b and 202b side) in the longitudinal direction of the inter-coil insertion portion 201 toward the other end side.

  In the second embodiment, the locking portions 202b and 202b are provided at one end in the longitudinal direction of the rectangular inter-coil insertion portion 201. However, similarly to the first embodiment, the rectangular inter-coil insertion portion You may provide a latching | locking part in the both ends of a longitudinal direction. In this case, the axial displacement of the inter-coil insulator is caused by the fact that the edge of the sheet of the locking portion is in contact with the insulator, regardless of which direction the axially deviating force is applied to the inter-coil insulator. Can be reliably prevented.

  FIG. 11 shows a development view of the inter-coil insulator 200. As shown in FIG. 11, the upper end in the longitudinal direction of the inter-coil insulator 200 having the rectangular inter-coil insertion portion 201 is arranged with respect to the longitudinal direction. Cuts 203, 203 are provided along a plane orthogonal to each other. The notches 203, 203 are linearly provided from the outside so as to be spaced from the longitudinal center line L21 of the inter-coil insertion portion 201, and are continuous with the inter-coil insertion portion 201 on the upper side of the inter-coil insertion portion 201. The support portions 202a and 202a are left. The notches 203 and 203 thus provided provide rectangular locking portions 202b and 202b extending laterally from the support portions 202a and 202a, respectively. Also, there are provided slip-off preventing portions 202c and 202c extending laterally from the distal ends of the locking portions 202b and 202b.

  The inter-coil insertion portion 201 is folded back into two by folding the center line L21 along the longitudinal direction. Further, the respective locking portions 202b and 202b are formed on the outside so as to fold the straight lines L22 and L22 extending outward in the longitudinal direction (axial direction) from the end of the notch 103 to be locked to the insulator 530 (shown in FIG. 9). Folded, the drop-off prevention portions 202c and 202c are folded back in the direction opposite to the locking portions 202b and 202b with the straight lines L23 and L23 being folded (see FIG. 12).

  According to the stator 5 configured as described above, the inter-coil insertion portion 201 of the inter-coil insulator 200 is folded back into a substantially V-shaped cross section in a plan view orthogonal to the axis, and the locking portions 202b and 202b are orthogonal to the axis. In plan view, the inter-coil insertion portion 201 is folded back to the side opposite to the opening direction of the substantially V-shaped cross section, so that the grooves 534 and 534 for locking the edges of the locking portions 202b and 202b are formed in the insulator 530. By providing in, it is possible to prevent the inter-coil insulator 200 from coming off more reliably.

  The stator, motor, and compressor of the second embodiment have the same effects as the stator, motor, and compressor of the first embodiment.

[Third Embodiment]
FIG. 13: has shown the principal part enlarged view of the motor of the compressor of 3rd Embodiment of this invention. The motor of the compressor of the third embodiment has the same configuration as the motor of the compressor of the first embodiment except for the inter-coil insulator, and the same reference numerals are assigned to the same components. .

  As shown in FIG. 13, the inter-coil insulator 300 is inserted between the coils 520 adjacent in the circumferential direction. Like the slot insulator 90, the inter-coil insulator 300 is made of a sheet-like resin material such as a resin insulating film or a resin molded product, and uses, for example, polyethylene terephthalate (PET).

  The inter-coil insulator 300 is locked to the inter-coil insertion portion 301 having a substantially W-shaped cross section that is folded into four by folding a straight line along the axial direction, the support portions 302a and 302a, and the coil 520. The locking portions 302b and 302b are folded back to the outside, and the removal preventing portions 302c and 302c are extended from the distal ends of the locking portions 302b and 302b to the side. The support portions 302a and 302a, the locking portions 302b and 302b, and the removal preventing portions 302c and 302c are provided at one end in the axial direction of the inter-coil insertion portion 301.

  Further, the outer wall 533 of the insulator 530 is provided with grooves 534 and 534 for locking the edges of the sheets of the locking portions 302b and 302b in the radial direction.

  The inter-coil insertion portion 301 of the inter-coil insulator 300 is folded back into a substantially V-shaped cross section in a plan view orthogonal to the axis, and the locking portions 302b and 302b are inter-coil insertion portions in the plan view orthogonal to the axis. 301 is folded back on the opposite side to the two opening directions of the substantially W-shaped cross section of 301, so that grooves 534 and 534 for locking the locking portions 302b and 302b are provided in the outer wall portion 533 of the insulator 530, thereby It is possible to more reliably prevent the interstitial insulator 300 from coming off.

  Furthermore, the locking portions 302b and 302b can be prevented from falling out of the grooves 534 and 534 of the insulator 530 by the stoppers 302c and 302c on the tip side of the locking portions 302b and 302b of the inter-coil insulator 300. .

  FIG. 14 is a longitudinal sectional view taken along line XIV-XIV in FIG. 13, and the same reference numerals are given to the same components as those in FIGS.

  As shown in FIG. 14, the inter-coil inserting portion 301 of the inter-coil insulator 300 is provided at one end in the axial direction of the inter-coil inserting portion 301 in a state of being inserted between the coils 520 adjacent to each other in the circumferential direction. The locking portions 302b and 302b are locked to the insulator 530. Thereby, it is possible to reliably prevent the inter-coil insulator 300 from being removed from one end side (the locking portions 302b and 302b side) in the longitudinal direction of the inter-coil insertion portion 301 toward the other end side.

  In the second embodiment, the locking portions 302b and 302b are provided at one end in the longitudinal direction of the rectangular inter-coil insertion portion 301. However, similarly to the first embodiment, the rectangular inter-coil insertion portion You may provide a latching | locking part in the both ends of a longitudinal direction. In this case, the axial displacement of the inter-coil insulator is caused by the fact that the edge of the sheet of the locking portion is in contact with the insulator, regardless of which direction the axially deviating force is applied to the inter-coil insulator. Can be reliably prevented.

  FIG. 15 shows a development view of the inter-coil insulator 300. As shown in FIG. 15, the upper end in the longitudinal direction of the inter-coil insulator 300 having the rectangular inter-coil insertion portion 301 is arranged with respect to the longitudinal direction. Incisions 303 and 303 are provided along the orthogonal plane. The notches 303 and 303 are linearly provided from the outside so as to be spaced from the straight line L31 in the longitudinal direction of the inter-coil insertion portion 301, and are supported above the inter-coil insertion portion 301 and connected to the inter-coil insertion portion 301. The portions 302a and 302a are left. The notches 303 and 303 thus provided provide rectangular locking portions 302b and 302b extending laterally from the support portions 302a and 302a, respectively. In addition, there are provided slip-off preventing portions 302c and 302c that extend laterally from the distal ends of the locking portions 302b and 302b.

  The inter-coil insertion portion 301 is folded back into four by folding three straight lines L31 along the longitudinal direction. The three straight lines L31 equally divide the width in the short direction of the inter-coil insertion portion 301 into four. Further, each of the locking portions 302b and 302b folds straight lines L32 and L32 extending outward in the longitudinal direction (axial direction) from the end of the notches 303 and 303 so as to be locked to the insulator 530 (shown in FIG. 13). Folded outward, the fall prevention parts 302c, 302c are folded back in the opposite direction to the locking parts 302b, 302b with the straight lines L33, L33 being folded (see FIG. 16).

  According to the stator 5 configured as described above, the inter-coil insertion portion 301 of the inter-coil insulator 300 is folded back into a substantially W-shaped cross section in a plan view orthogonal to the axis, and the locking portion is in a plan view orthogonal to the axis. Since the inter-coil insertion portion 301 is folded back on the opposite side to the two opening directions of the substantially W-shaped cross section, the force that the inter-coil insertion portion 301 is held between the coils 520 by elastic deformation is substantially V-shaped in cross section. By providing the insulators 530 with grooves 534 and 534 for locking the edges of the sheets of the locking portions 302b and 302b, the inter-coil insulator 300 can be more reliably prevented from coming off.

  The stator, motor, and compressor of the third embodiment have the same effects as the stator, motor, and compressor of the first embodiment.

[Fourth Embodiment]
FIG. 17 shows an enlarged view of the main part of the motor of the compressor according to the fourth embodiment of the present invention. The motor of the compressor of the fourth embodiment has the same configuration as the motor of the compressor of the first embodiment except for the inter-coil insulator, and the same reference numerals are assigned to the same components. .

  As shown in FIG. 17, the inter-coil insulator 400 is inserted between the coils 520 adjacent in the circumferential direction. The inter-coil insulator 400 and the slot insulator 90 are made of a sheet-like resin material such as a resin insulating film or a resin molded product, and use, for example, polyethylene terephthalate (PET).

  The inter-coil insulator 400 is locked to the inter-coil insertion portion 401 having a substantially V-shaped cross section that is folded into two by folding a straight line along the axial direction, the support portions 402a and 402a, and the coil 520. Thus, it has locking portions 402b and 402b that are folded outward. The support portions 402 a and 402 a and the locking portions 402 b and 402 b are provided at one end in the axial direction of the inter-coil insertion portion 401.

  The locking portions 402b and 402b have an opening angle larger than the opening angle of the V-shaped cross section of the inter-coil inserting portion 401 and a substantially V-shaped cross section of the inter-coil inserting portion 401 in a plan view orthogonal to the axis. It has a substantially V-shaped cross section that opens in the same direction as the opening direction.

  In addition, the inter-coil insertion portion 401 of the inter-coil insulator 400 is arranged between the coils so that the opening direction having a substantially V-shaped cross section is a radially outer side (the side opposite to the rotor 6) in a plan view orthogonal to the axis. An insulator 400 is disposed between the coils 520. Then, when the tips of the locking portions 402b and 402b are brought into contact with the outer wall portion 533 of the insulator 530, heat is applied to the inter-coil insulator 400 so that the locking portions 402b and 402b return to the state before being turned back. Can be restricted.

  Furthermore, the inter-coil insulator 400 is inserted between the coils 520 from the teeth of the stator core 510 by the pop-out preventing surface 410 provided along the axial direction at the bottom of the substantially V-shaped cross section of the inter-coil insert portion 401 of the inter-coil insulator 400. It is possible to prevent the portion 512 (from between the first protrusion 91 and the second protrusion 92 of the slot insulator 90) from coming out radially inward. Note that the pop-out prevention surface 410 is not limited to a flat surface and may be a curved surface.

  18 is a longitudinal sectional view taken along line XVIII-XVIII of FIG. 17, and the same reference numerals are given to the same components as those in FIGS.

  As shown in FIG. 18, the inter-coil insertion portion 401 of the inter-coil insulator 400 is provided at one end in the axial direction of the inter-coil insertion portion 401 in a state of being inserted between the coils 520 adjacent to each other in the circumferential direction. The engaging portions 402b and 402b are engaged with the coil 520. Thereby, it is possible to reliably prevent the inter-coil insulator 400 from being removed from one end side (the locking portions 402b and 402b side) in the longitudinal direction of the inter-coil insertion portion 401 toward the other end side.

  In the fourth embodiment, the locking portions 402b and 402b are provided at one end in the longitudinal direction of the rectangular inter-coil insertion portion 401. However, as in the first embodiment, the rectangular inter-coil insertion portion 401 You may provide a latching | locking part in the both ends of a longitudinal direction. In this case, the axial displacement of the inter-coil insulator is caused by the fact that the edge of the sheet of the locking portion is in contact with the insulator, regardless of which direction the axially deviating force is applied to the inter-coil insulator. Can be reliably prevented.

  FIG. 19 shows a development view of the inter-coil insulator 400. As shown in FIG. 19, the upper end in the longitudinal direction of the inter-coil insulator 400 having the rectangular inter-coil insertion portion 401 is arranged in the longitudinal direction. Incisions 403 and 403 are provided along the orthogonal plane. The notches 403 and 403 are linearly provided from the outside so as to be spaced from the straight line L41 in the longitudinal direction of the inter-coil inserting portion 401, and are supported above the inter-coil inserting portion 401 and connected to the inter-coil inserting portion 401. The parts 402a and 402a are left. The notches 403 and 403 provided in this way provide rectangular locking portions 402b and 402b extending laterally from the support portions 402a and 402a, respectively.

  The inter-coil insertion portion 401 is folded back into two by folding the straight lines L41 and L41 along the longitudinal direction. Each of the locking portions 402b and 402b is engaged with the coil end of the coil 520 (shown in FIGS. 3 and 4) by folding the straight lines L42 and L42 extending from the end of the notch 403 outward in the longitudinal direction (axial direction). Folded outward to stop (see FIG. 20).

  The straight lines L41 and L41 of the inter-coil insertion portion 401 are set to have a predetermined interval, and a pop-out prevention surface 410 is formed between the straight lines L41 and L41.

  According to the stator 5 configured as described above, the inter-coil insertion portion 401 of the inter-coil insulator 400 has a substantially V-shaped opening direction in a plan view orthogonal to the axis so that the opening direction is on the side opposite to the rotor 6 in the radial direction. Further, by disposing the inter-coil insulator 400 between the coils 520, the front end side of the engaging portions 402b and 402b is brought into contact with the insulator 530, so that the engaging portions 402b and The insulator 530 can restrict the 402b from being thermally deformed and returning to the state before the folding. In addition, the inter-coil insulator 400 is arranged radially between the teeth 512 of the stator core 510 and on the rotor 6 side by the pop-out prevention surface 410 provided along the axial direction at the bottom of the substantially V-shaped cross section of the inter-coil insertion portion 401. Can be prevented from falling out.

  The stator, motor, and compressor of the fourth embodiment have the same effects as the stator, motor, and compressor of the first embodiment.

  In the fourth embodiment, the pop-out prevention surface 410 is provided along the axial direction at the bottom of the substantially V-shaped cross section of the inter-coil insertion portion 401 of the inter-coil insulator 400, except that it does not have a pop-out prevention surface. An inter-coil insulator similar to the inter-coil insulator 400 may be disposed between the coils. Also in this case, it is possible to reliably prevent the inter-coil insulator from coming off in the axial direction.

  In the first to fourth embodiments, the compressor including the inner rotor type motor has been described. However, the present invention may be applied to an outer rotor type motor and a compressor including the motor.

  Although specific embodiments of the present invention have been described, the present invention is not limited to the first to fourth embodiments, and various modifications can be made within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Airtight container 2 ... Compression mechanism part 3 ... Motor 5 ... Stator 6 ... Rotor 7 ... Housing 9 ... Oil sump part 10 ... Accumulator 11 ... Suction pipe 12 ... Shaft 13 ... Discharge pipe 21 ... Cylinder 22 ... Cylinder chamber 22a ... Suction Chamber 22b ... Discharge chamber 25, 25 ... Bush 26 ... Eccentric pin 27 ... Roller 28 ... Blade 31 ... Discharge valve 35 ... Bolt 40 ... Muffler cover 42 ... Muffler chamber 43 ... Hole 50 ... End plate member 51 ... Main body 51a ... Discharge port 52 ... Boss part 60 ... End plate member 61 ... Main body part 62 ... Boss part 90 ... Slot insulator 100 ... Insulator between coils 101 ... Insertion part between coils 102a ... Support part 102b ... Locking part 200 ... Insulation between coils Body 201 ... inter-coil insertion part 202a ... support part 202b ... locking part 202c ... drop prevention part 300 ... inter-coil insulator 301 ... inter-coil insertion part 302a ... support part 302b ... locking part 302c ... removal prevention part 400 ... inter-coil insulator 401 ... inter-coil insertion part 402a ... support part 402b ... locking part 410 ... pop-out prevention surface 510 ... stator core 511 ... Back yoke portion 512 ... Teeth portion 512a, 512b ... End 512A ... Tip portion 514 ... Slot portion 520 ... Coil 530 ... Insulator 531 ... Ring portion 532 ... Tooth portion 533 ... Outer wall portion 534, 534 ... Groove portion 610 ... Rotor core 620 ... Magnet 91 ... first protrusion 92 ... second protrusion

Claims (8)

A stator core (510) having a plurality of teeth portions (512) arranged at intervals in the circumferential direction;
An insulator (530) attached to both axial end faces of the stator core (510);
A coil (520) wound around the teeth (512) of the stator core (510) via the insulator (530);
A sheet-like inter-coil insulator (100, 200, 300, 400) partially disposed between the coils (520) adjacent to each other in the circumferential direction,
The inter-coil insulator (100, 200, 300, 400)
An inter-coil insertion portion (101, 201, 301, 401) disposed between the coils (520) that is folded into at least two by folding a straight line along the axial direction;
At least one of the axial ends of the inter-coil insertion portion (101, 201, 301, 401) is provided by notches (103, 203, 303, 403) along a plane intersecting the axis, and the coil (520 Or a locking portion (102b, 202b, 302b, 402b) bent outward so as to be locked to the insulator (530). Stator (5) according to claim 1,
The inter-coil insertion portion (101) of the inter-coil insulator (100) is folded back into a substantially V-shaped cross section in a plan view perpendicular to the axis.
The engaging portion (102) of the inter-coil insulator (100) has an opening angle larger than the opening angle of the V-shaped cross section of the inter-coil insertion portion (101) in a plan view orthogonal to the axis, and The stator (5) is characterized by having a substantially V-shaped cross section that opens in the same direction as the opening direction of the substantially V-shaped cross section of the inter-coil insertion portion (101). Stator (5) according to claim 1,
The inter-coil insertion portion (201) of the inter-coil insulator (200) is folded back into a substantially V-shaped cross section in a plan view perpendicular to the axis.
The locking portion (202b) of the inter-coil insulator (200) is folded back to the side opposite to the opening direction of the substantially V-shaped cross section of the inter-coil insertion portion (201) in a plan view orthogonal to the axis. A stator (5) characterized in that Stator (5) according to claim 1,
The inter-coil insertion portion (401) of the inter-coil insulator (400) is folded back into a substantially W-shaped cross section in a plan view orthogonal to the axis.
The locking portion (402b) of the inter-coil insulator (400) is opposite to the two opening directions of the inter-coil insertion portion (401) having a substantially W-shaped cross section in a plan view orthogonal to the axis. A stator (5) characterized by being folded. In the stator (5) according to any one of claims 1 to 3,
The inter-coil insertion portion (101, 201, 301) of the inter-coil insulator (100, 200, 300) has a substantially V-shaped opening direction in a plan view perpendicular to the axis, and the rotor (6) Stator (5) characterized in that it is on the side. In the stator (5) according to any one of claims 1 to 3,
The inter-coil insertion portion (401) of the inter-coil insulator (400) has a substantially V-shaped opening direction in a plan view perpendicular to the axis and is on the side opposite to the rotor (6) in the radial direction, A stator (5) having a pop-out prevention surface (410) provided along the axial direction at the bottom of the substantially V-shaped cross section. The rotor (6),
A motor (3), comprising the stator (5) according to any one of claims 1 to 6, which is disposed so as to face the rotor (6) in the radial direction. A sealed container (1);
A compression mechanism (2) disposed in the sealed container (1);
A compressor comprising the motor (3) according to claim 7, which is disposed in the sealed container (1) and drives the compression mechanism section (2).

Images