WO2016002012A1 - 回転子、電動機、圧縮機、及び送風機 - Google Patents
回転子、電動機、圧縮機、及び送風機 Download PDFInfo
- Publication number
- WO2016002012A1 WO2016002012A1 PCT/JP2014/067575 JP2014067575W WO2016002012A1 WO 2016002012 A1 WO2016002012 A1 WO 2016002012A1 JP 2014067575 W JP2014067575 W JP 2014067575W WO 2016002012 A1 WO2016002012 A1 WO 2016002012A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- corner
- rotor
- central axis
- shaft member
- distance
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000014509 gene expression Effects 0.000 description 19
- 239000012530 fluid Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 15
- 230000004907 flux Effects 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000001154 acute effect Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/04—Asynchronous induction motors for single phase current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/165—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors characterised by the squirrel-cage or other short-circuited windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Definitions
- the present invention relates to a rotor, an electric motor, a compressor, and a blower.
- Compressor and blower are operated by the power generated by the motor.
- an induction motor including a stator that generates a rotating magnetic field and a rotor that rotates by an electromagnetic force of an induced current generated by the rotating magnetic field is known.
- An object of the present invention is to provide a rotor, an electric motor, a compressor, and a blower that can suppress a decrease in efficiency.
- the present invention relates to a rotor of an electric motor that is connected to a shaft member and rotates about a central axis, and a shaft hole in which at least a part of the shaft member that rotates about the central axis is disposed, and the shaft member
- a plurality of passages that are arranged around the center axis and pass through in a direction parallel to the central axis, and an inner surface of the passage includes a first surface facing a radially outer side of the shaft member, and the radial direction in the radial direction.
- a second surface disposed outside the first surface and facing the first surface via a gap; an end portion of the first surface in a rotational direction about the central axis; and an end portion of the second surface And a fourth surface connecting the other end portion of the first surface and the other end portion of the second surface in the rotational direction, and one end portion of the first surface and the first surface
- the distance between the other end of the surface is C
- the distance between one end of the second surface and the other end of the second surface is D.
- a rotor, an electric motor, a compressor, and a blower that can suppress a decrease in efficiency are provided.
- FIG. 1 is a cross-sectional view illustrating an example of an electric motor according to Embodiment 1.
- FIG. FIG. 2 is a perspective view illustrating an example of the rotor according to the first embodiment.
- FIG. 3 is a plan view showing an example of the rotor according to the first embodiment.
- FIG. 4 is an enlarged view of a part of FIG.
- FIG. 5 is a diagram showing the flow of magnetic flux in the electric motor.
- FIG. 6 is a plan view showing an example of a rotor according to a conventional example.
- FIG. 7 is a plan view showing an example of the rotor according to the second embodiment.
- FIG. 8 is a plan view showing an example of the rotor according to the third embodiment.
- FIG. 9 is a plan view illustrating an example of the rotor according to the fourth embodiment.
- FIG. 10 is a plan view showing an example of the rotor according to the fifth embodiment.
- FIG. 11 is a plan view showing an example of a rotor according to the sixth embodiment.
- FIG. 12 is a plan view showing an example of a rotor according to the seventh embodiment.
- FIG. 13 is a diagram illustrating an example of the compressor according to the eighth embodiment.
- FIG. 14 is a diagram illustrating an example of a blower according to the ninth embodiment.
- FIG. 15 is a diagram illustrating an example of a blower according to the ninth embodiment.
- FIG. 16 is a diagram illustrating an example of a blower according to the tenth embodiment.
- FIG. 1 is a cross-sectional view illustrating an example of the electric motor 100.
- FIG. 2 is a perspective view showing an example of the rotor 10 of the electric motor 100.
- FIG. 3 is a plan view showing an example of the rotor 10 of the electric motor 100.
- FIG. 4 is an enlarged view of a part of FIG.
- FIG. 5 is a diagram illustrating the flow of magnetic flux in the electric motor 100.
- the electric motor 100 is a two-pole induction motor.
- the electric motor 100 includes a rotor 10 that is connected to the shaft member 40 and rotates about a central axis AX, and a stator 20 that is disposed around the rotor 10.
- the rotor 10 is disposed in a space inside the stator 20.
- the outer surface of the rotor 10 and the inner surface of the stator 20 face each other through a gap.
- the stator 20 includes a stator core 21 in which a stator slot 22 is formed, and a coil 23 disposed in the stator slot 22.
- the stator core 21 is a cylindrical member.
- the stator core 21 is a laminate of a plurality of electromagnetic steel plates.
- the stator core 21 is manufactured by fixing a plurality of electromagnetic steel plates laminated in the axial direction.
- a plurality of stator slots 22 are formed in the stator core 21.
- the plurality of stator slots 22 are arranged at intervals in the rotation direction.
- the stator slot 22 has an opening facing the space inside the stator core 21.
- the opening of the stator slot 22 is called slot opening.
- the coil 23 is inserted into the stator slot 22 via a slot opening.
- a plurality of coils 23 are arranged in the slot 22.
- the stator 20 When an alternating current is supplied to the coil 23, the stator 20 generates a rotating magnetic field.
- the rotor 10 generates an induced current by the rotating magnetic field generated by the stator 20 and rotates by the electromagnetic force of the induced current.
- the rotor 10 includes a rotor core that is disposed around the shaft member 40 and is connected to the outer surface 41 of the shaft member 40 at least a part of the shaft member 40 that rotates about the central axis AX. 11, a plurality of flow paths 50 arranged around the shaft member 40 and penetrating in a direction parallel to the central axis AX, and a cage conductor 30 connected to the rotor core 11.
- the rotor core 11 is a cylindrical member.
- the rotor core 11 is a laminate of a plurality of electromagnetic steel plates.
- the rotor core 11 is manufactured by fixing a plurality of electromagnetic steel plates laminated in the axial direction.
- the rotor core 11 has a rotor slot 12 and a shaft hole 13.
- the shaft hole 13 is formed in the center of the rotor core 11 in a plane orthogonal to the rotation axis AX.
- the shaft member 40 is connected to the inner surface 14 of the shaft hole 13.
- the shaft member 40 disposed in the shaft hole 13 is fixed to the rotor core 11.
- a plurality of rotor slots 12 are formed around the shaft hole 13.
- the plurality of rotor slots 12 are arranged at intervals in the rotation direction about the central axis AX.
- the shaft member 40 is fixed to the rotor core 11. At this time, the center axis AX of the shaft member 40 and the center axis AX of the rotor 10 coincide. One end portion of the shaft member 40 and the other end portion of the shaft member 40 in the direction parallel to the central axis AX are disposed outside the rotor core 11.
- the shaft member 40 is rotatably supported by a bearing.
- the outer shape of the shaft member 40 is circular in a plane orthogonal to the central axis AX.
- a direction parallel to the central axis AX is appropriately referred to as an axial direction
- a rotational direction around the central axis AX is appropriately referred to as a rotational direction
- a radial direction of the shaft member 40 is appropriately determined as a radial direction.
- the radial direction includes the radial direction of the central axis AX.
- the cage conductor 30 includes a nonmagnetic and conductive rotor bar 31 disposed in the rotor slot 12 of the rotor core 11 and an end ring 32 connected to the rotor bar 31.
- a plurality of rotor bars 31 are arranged around the central axis AX.
- the rotor bar 31 is made of a nonmagnetic and conductive material such as aluminum or copper.
- the rotor bar 31 is manufactured by filling the rotor slot 12 with a nonmagnetic and conductive material.
- the end ring 32 is connected to the end of the rotor bar 31.
- the end ring 32 has an inner edge portion 32A facing the central axis AX and an outer edge portion 32B disposed outside the inner edge portion 32A in the radial direction.
- the end ring 32 is disposed at both ends of the rotor bar 31.
- the end of the rotor bar 31 is short-circuited by the end ring 32.
- the inner surface 14 of the shaft hole 13 includes a connection region 15 that is connected to the outer surface 41 of the shaft member 40 and a non-connection region 16 that is disposed through a gap with the outer surface 41 of the shaft member 40.
- the rotor 10 has a recess 17 formed in the inner surface 14 of the shaft hole 13.
- the recess 17 is formed to be recessed from the inner surface 14 of the shaft hole 13 to the outer side in the radial direction.
- the non-connection region 16 includes the inner surface of the recess 17.
- the shaft member 40 is supported by the connection region 15 of the shaft hole 13.
- a plurality of the flow paths 50 are arranged around the shaft member 40 at intervals.
- three flow paths 50 are arranged around the shaft member 40.
- the flow path 50 penetrates the rotor 10 in the axial direction.
- the flow path 50 connects the first opening formed on one end face of the rotor 10 in the axial direction and the second opening formed on the other end face.
- a first opening is disposed at one end of the axial flow path 50, and a second opening is disposed at the other end of the radial flow path 50.
- the first opening and the second opening of the flow path 50 are disposed between the outer surface 41 of the shaft member 40 and the inner edge portion 32A of the end ring 32 in a plane orthogonal to the central axis AX.
- the fluid flows through the flow path 50.
- the fluid that has flowed into the flow path 50 through the first opening flows through the flow path 50 and then flows out from the second opening.
- the fluid flowing through the flow path 50 includes one or both of gas and liquid.
- the fluid flowing through the flow path 50 includes refrigerant, air, gas, and oil.
- the channel 50 may be referred to as an air hole.
- the inner surface of the flow path 50 has a first surface 51 that faces the outer side in the radial direction, a second surface 52 that is disposed on the outer side of the first surface 51 in the radial direction and faces the first surface 51 via a gap, and a rotational direction.
- a surface 54 is a first surface 51 that faces the outer side in the radial direction, a second surface 52 that is disposed on the outer side of the first surface 51 in the radial direction and faces the first surface 51 via a gap, and a rotational direction.
- the flow path 50 is formed between the shaft member 40 and the rotor core 11.
- the flow path 50 is defined by the outer surface 41 of the shaft member 40 and the non-connection region 16 of the rotor core 11.
- the first surface 51 is provided on the shaft member 40.
- the second surface 52, the third surface 53, and the fourth surface 54 are provided on the rotor core 11.
- An outer surface 41 of the shaft member 40 includes a first surface 51.
- the non-connection region 16 of the rotor core 11 includes a second surface 52, a third surface 53, and a fourth surface 54.
- the inner surface of the flow path 50 including the first surface 51, the second surface 52, the third surface 53, and the fourth surface 54 is parallel to the central axis AX.
- the first surface 51 includes a curved surface.
- the second surface 52 is a flat surface.
- the third surface 53 is a flat surface.
- the fourth surface 54 is a flat surface.
- the first surface 51 includes a curved surface protruding outward in the radial direction.
- the flow path 50 includes a first corner portion 61 that connects the first surface 51 and the third surface 53, a second corner portion 62 that connects the first surface 51 and the fourth surface 54, a second surface 52, and a third surface.
- a third corner 63 connecting the surface 53 and a fourth corner 64 connecting the second surface 52 and the fourth surface 54 are included.
- the first corner 61 is provided between one end of the first surface 51 in the rotational direction and the inner end of the third surface 53 in the radial direction.
- the second corner 62 is provided between the other end of the first surface 51 in the rotational direction and the inner end of the fourth surface 54 in the radial direction.
- the third corner 63 is provided between one end of the second surface 52 in the rotational direction and the outer end of the third surface 53 in the radial direction.
- the fourth corner portion 64 is provided between the other end portion of the second surface 52 in the rotational direction and the outer end portion of the fourth surface 54 in the radial direction.
- the distance C is a linear distance between one end portion of the first surface 51 and the other end portion of the first surface 51.
- the distance D is a linear distance between one end of the second surface 52 and the other end of the second surface 52.
- the distance between the inner end of the third surface 53 and the outer end of the third surface 53 is E, and the inner end of the fourth surface 54 and the outer end of the fourth surface 54 are within a plane orthogonal to the central axis AX.
- E F
- the flow path 50 satisfies the condition of the expression (2).
- the distance E is a linear distance between the inner end portion of the third surface 53 and the outer end portion of the third surface 53.
- the distance F is a linear distance between one end portion of the fourth surface 54 and the other end portion of the fourth surface 54.
- the distance between the first surface 51 and the second surface 52 in the radial direction is L, L ⁇ C (3)
- the flow path 50 satisfies the condition of the expression (3).
- the distance L is the same as the distance E and the distance F.
- the first imaginary line IL1 connecting the third corner 63 and the central axis AX and the third surface 53 coincide with each other, and the fourth imaginary line 64 connecting the fourth corner 64 and the central axis AX.
- the two imaginary lines IL2 and the fourth surface 54 coincide.
- An isosceles triangle is formed by an imaginary line connecting the central axis AX, the third corner portion 63, and the fourth corner portion 64 in a plane orthogonal to the central axis AX.
- the distance between the third surface 53 and the fourth surface 54 increases toward the outer side in the radial direction between the third surface 53 and the fourth surface 54.
- the angle ⁇ 1 formed by the first surface 51 and the third surface 53 is substantially 90 degrees.
- the angle ⁇ 2 formed by the first surface 51 and the fourth surface 54 is substantially 90 degrees.
- the angle ⁇ 1 and the angle ⁇ 2 are the same.
- the angle ⁇ 3 formed by the second surface 52 and the third surface 53 is an angle smaller than 90 degrees, that is, an acute angle.
- the angle ⁇ 4 formed by the second surface 52 and the fourth surface 54 is an angle smaller than 90 degrees, that is, an acute angle.
- the angle ⁇ 3 and the angle ⁇ 4 are the same.
- the three flow paths 50 are arranged around the shaft member 40 at the same interval. A part of the rotor core 11 is disposed between the adjacent flow paths 50.
- one channel 50 is appropriately referred to as a first channel 50, and the other channel 50 adjacent to the first channel 50 is appropriately This is referred to as a second flow path 50.
- the distance between the third corner 63 of the first channel 50 and the fourth corner 64 of the second channel 50 is A, and the first corner 61 of the first channel 50 and the second channel 50 are the same.
- the flow path 50 satisfies the formula (4).
- the distance A is a linear distance between the third corner 63 of the first channel 50 and the fourth corner 64 of the second channel 50.
- the distance B is a linear distance between the first corner 61 of the first channel 50 and the second corner 62 of the second channel 50.
- the distance A and the distance D are the same.
- the distance B and the distance C are the same.
- the magnetic flux generated by the stator 20 passes through the rotor 10. As indicated by an arrow YJ, the magnetic flux generated by the stator 20 passes through the shaft member 40 disposed at the center of the rotor 10.
- the number of poles of the stator 20 is two.
- the number of magnetic fluxes generated by the two-pole stator 20 and passing through the shaft member 40 is larger than the number of magnetic fluxes generated by the four-pole or six-pole stator and passing through the shaft member 40, for example.
- the magnetic flux generated by a 4-pole or 6-pole stator is dispersed according to the number of poles. However, since the magnetic flux is not dispersed by the 2-pole stator, the magnetic flux density is increased.
- Magnetic saturation refers to a phenomenon in which the increase in the magnetic flux density of the rotor 10 slows down even when the magnetic force of the magnetic field generated by the stator 20 is increased.
- the efficiency of the electric motor 100 refers to the ratio between input power and output.
- FIG. 6 is a diagram illustrating an example of a rotor 10R according to a conventional example.
- the distance C between the one end portion of the first surface 51 and the other end portion of the first surface 51 is large, and the condition of the expression (1) is not satisfied.
- the distance B between the first corner 61 of the first channel 50R and the second corner 62 of the second channel 50R becomes shorter. When the distance B is short, magnetic saturation occurs and the efficiency of the electric motor decreases.
- the flow path 50 satisfies the condition of the expression (1). Therefore, the distance B between the first flow path 50 and the second flow path 50 becomes longer. For example, the distance B is longer than half the distance A. When the distance B is long, the occurrence of magnetic saturation is suppressed. By suppressing the occurrence of magnetic saturation, a decrease in the efficiency of the electric motor 100 is suppressed.
- the flow path 50 satisfies the condition of the expression (3). That is, the shape of the flow path 50 becomes longer in the rotation direction in a plane orthogonal to the central axis AX. Thereby, the flow path area of the flow path 50 increases, and the fluid can flow smoothly through the flow path 50.
- the channel area of the channel 50 refers to the area of the channel 50 in a plane orthogonal to the central axis AX.
- the first surface 51 of the flow channel 50 is provided on the shaft member 40, and the second surface 52, the third surface 53, and the fourth surface 54 of the flow channel 50 are the rotor.
- the flow path 50 is defined by the shaft member 40 supported by the shaft hole 13 and the concave portion 17 of the rotor core 11 provided in the shaft hole 13.
- the flow path 50 with a large flow area is arrange
- the flow path 50 includes the first corner portion 61 that connects the first surface 51 and the third surface 53, and the second corner portion that connects the first surface 51 and the fourth surface 54. 62, a third corner portion 63 connecting the second surface 52 and the third surface 53, and a fourth corner portion 64 connecting the second surface 52 and the fourth surface 54. That is, the channel 50 is substantially rectangular in a plane orthogonal to the central axis AX. Thereby, the fluid can flow smoothly through the flow path 50.
- the first imaginary line IL1 connecting the third corner portion 63 and the central axis AX coincides with the third surface 53
- the second imaginary line IL2 connecting the portion 64 and the central axis AX coincides with the fourth surface 54.
- the flow path 50 is formed so that the third surface 53 coincides with the first imaginary line IL1 and the fourth surface 54 coincides with the second imaginary line IL2, so that the first surface 51 and the third surface 53 are formed.
- the angle ⁇ 1 formed is 90 degrees
- the angle ⁇ 2 formed by the first surface 51 and the fourth surface 54 is 90 degrees.
- the angle formed between the third surface 53 of the rotor core 11 and the contact region 15 of the inner surface 14 is 90 degrees
- the angle formed between the fourth surface 54 of the rotor core 11 and the contact region 15 of the inner surface 14 is 90 degrees. Degree.
- the rotor 10 rotates with a two-pole rotating magnetic field generated by the stator 20 of the electric motor 100.
- the number of magnetic fluxes generated by the two-pole stator 20 and passing through the shaft member 40 is larger than the number of magnetic fluxes generated by the four-pole or six-pole stator and passing through the shaft member 40, for example.
- the stator 10 has the cage conductor 30 including the rotor bar 31 and the end ring 32 connected to the rotor bar 31.
- the secondary resistance refers to the electrical resistance of the rotor 10.
- the efficiency of the electric motor 100 is improved by reducing the secondary resistance.
- the flow path 50 is formed by satisfying the conditions of the expressions (1) and (3), thereby increasing the size of the end ring 32 and increasing the flow area of the flow path 50. While achieving, the flow path 50 can be disposed between the outer surface 41 of the shaft member 40 and the inner edge portion 32A of the end ring 32 in a plane orthogonal to the central axis AX. By satisfying the conditions of the expressions (1) and (3), smooth fluid flow in the flow path 50 and suppression of the occurrence of magnetic saturation are realized.
- the induction motor has been described as an example, but the effect can be shown if the motor is a two-pole motor such as a permanent magnet motor or a reluctance motor.
- a single-phase induction motor that is composed of a main winding and an auxiliary winding and can be driven by a single-phase power supply is designed to have a high magnetic flux density because the starting torque is small. Since the present invention has an effect of alleviating magnetic flux saturation caused by the flow path 50, it can be more effectively used for a single-phase induction motor having a high magnetic flux density.
- FIG. FIG. 7 is a diagram illustrating an example of the rotor 10B according to the second embodiment. As shown in FIG. 7, the second surface 52 includes a curved surface that is recessed outward in the radial direction.
- the second surface 52 is a curved surface centered on the central axis AX. That is, the second surface 52 is an arc in a plane orthogonal to the central axis AX. The center of curvature of the second surface 52 coincides with the central axis AX.
- the second surface 52 of the flow channel 50 is a curved surface centered on the central axis AX, the second surfaces 52 of the plurality of flow channels 50 move along the same circular trajectory when the rotor 10 rotates. . Thereby, in the state where the rotor 10 is rotating, the fluid smoothly flows into the flow path 50 from the second opening of the flow path 50 and is smoothly discharged from the first opening of the flow path 50. .
- the inner edge portion 32A of the end ring 32 has a circular shape concentric with the central axis AX. Since the inner edge portion 32A of the end rig 32 and the second surface 52 are arranged concentrically, the end ring 32 and the flow path 50 are prevented from overlapping in a plane orthogonal to the central axis AX, while the end ring The diameter of 32 inner edge portions 32A can be reduced. Accordingly, it is possible to increase the size of the end ring 32 and increase the flow area of the flow path 50.
- a part of the second surface 52 may be a curved surface centered on the central axis AX.
- the second surface 52 may be a curved surface having an axis parallel to the central axis AX and different from the central axis AX. Even if the second surface 52 is not a curved surface centered on the central axis AX, the fluid flows into the flow path 50 as compared with the case where the second surface 52 is a flat surface because the second surface 52 is a curved surface recessed radially outward. Smoothly flows into the flow path 50 from the second opening and is smoothly discharged from the first opening of the flow path 50.
- the second surface 52 is not a curved surface centered on the central axis AX, the second surface 52 is a curved surface that is recessed outward in the radial direction. It is possible to increase the size of the end ring 32 and increase the channel area of the channel 50 while preventing the channel 50 from overlapping.
- At least one of the first corner 61, the second corner 62, the third corner 63, and the fourth corner 64 may include a curved surface.
- the third corner portion 63 and the fourth corner portion 64 may include curved surfaces.
- the third corner 63 includes an arc and the fourth corner 64 includes an arc in a plane orthogonal to the central axis AX.
- Rq radius of curvature of the third corner 63 and the radius of curvature of the fourth corner 64
- L the distance between the first surface 51 and the second surface 52 in the radial direction
- the third corner portion 63 includes a curved surface and the fourth corner portion 64 includes a curved surface
- the work of punching out the electromagnetic steel sheet with a mold is performed in the manufacture of the rotor 10
- no acute angle portion is provided in the mold. May be. Therefore, the possibility that the mold is damaged is reduced, and the manufacture of the rotor 10 is smoothly performed.
- the flow path 50 is suppressed from shortening the distance B by satisfying the condition of the expression (5). Thereby, generation
- FIG. 8 is a diagram illustrating an example of a rotor 10C according to the third embodiment.
- the first corner portion 61 and the second corner portion 62 may include curved surfaces.
- the first corner 61 includes an arc and the second corner 62 includes an arc in a plane orthogonal to the central axis AX.
- the mold when the first corner portion 61 includes a curved surface and the second corner portion 62 includes a curved surface, when the work of punching out the electromagnetic steel sheet with the mold is performed in the manufacture of the rotor 10C, the mold is not provided with an acute angle portion. May be. By not providing an acute angle portion in the mold, the possibility of the mold being damaged is reduced. Further, if the first corner portion 61 and the second corner portion 62 are sharp, burrs or the like are likely to occur, and burrs can be caught when the shaft member 40 is connected to the inner surface 14 of the shaft hole 13 by shrink fitting or press fitting. There is sex.
- FIG. 9 is a diagram illustrating an example of a rotor 10D according to the fourth embodiment.
- a first imaginary line IL1 connecting the third corner 63 and the central axis AX, and a second connecting the fourth corner 64 and the central axis AX.
- C is defined.
- the third surface 53 and the fourth surface 54 are also disposed between the first virtual line IL1 and the second virtual line IL2.
- the first corner 61 and the third surface 53, and the second corner 62 and the fourth surface 54 are disposed between the first virtual line IL1 and the second virtual line IL2, so that the adjacent flow paths. 50, the distance B between the first corner 61 of the first channel 50 and the second corner 62 of the second channel 50 can be increased. Thereby, generation
- the angle ⁇ 5 formed by the third surface 53 and the connection region 15 and the angle ⁇ 6 formed by the fourth surface 54 and the connection region 15 are decreased.
- a portion between the third surface 53 and the connection region 15 and a portion between the fourth surface 54 and the connection region 15 are sharply sharpened. If a sharply pointed portion is provided in the rotor core 11, when the work of punching out the electromagnetic steel sheet with a mold is performed in the manufacture of the rotor 10D, there is a high possibility that the mold will be damaged. Further, the strength of the portion between the third surface 53 and the connection region 15 and the portion between the fourth surface 54 and the connection region 15 may be reduced.
- the distance between the third corner 63 of the first channel 50 and the fourth corner 64 of the second channel 50 adjacent to the first channel 50 out of the two adjacent channels 50 is determined.
- A when the distance between the first corner 61 of the first channel 50 and the second corner 62 of the second channel 50 is B, A ⁇ B (6)
- the flow path 50 may satisfy the condition of the formula (6). Thereby, manufacture of the rotor 10 is performed smoothly and generation
- FIG. 10 is a diagram illustrating an example of a rotor 10E according to the fifth embodiment.
- a part of the rotor core 11 may be disposed between the shaft member 40 and the flow path 50. That is, the first surface 51, the second surface 52, the third surface 53, and the fourth surface 54 of the flow path 50 may be provided in the rotor core 11.
- the fluid flows through the flow path 50 by forming the flow path 50 so that the condition such as the expression (1) is satisfied. It flows smoothly and the occurrence of magnetic saturation is suppressed.
- FIG. 11 is a diagram illustrating an example of a rotor 10F according to the sixth embodiment. As shown in FIG. 11, the first surface 51, the second surface 52, the third surface 53, and the fourth surface 54 of the flow path 50 are provided on the rotor core 11.
- the first corner 61 includes an arc
- the second corner 62 includes an arc.
- the flow path 50 satisfies the condition of the expression (7).
- the distance L is the same as the dimension of the third surface 53 and the dimension of the fourth surface 54 in the radial direction.
- the first corner portion 61 includes an arc
- the second corner portion 62 includes an arc
- the third corner portion 63 includes an arc in a plane orthogonal to the central axis AX.
- the quadrangular portion 64 includes an arc.
- the distance B increases and the occurrence of magnetic saturation is suppressed.
- the radius Rq is large, the distance A is large, but the effect of improving the magnetic saturation is small as compared with the case where the distance B is large.
- the flow path 50 satisfies the condition of the expression (8), magnetic saturation can be effectively suppressed while securing the flow path area of the flow path 50.
- the first corner 61, the second corner 62, the third corner 63, and the fourth corner 64 include arcs.
- the first corner 61 and the second corner 62 may include an arc, and the third corner 63 and the fourth corner 64 may be angular without including an arc.
- magnetic saturation is achieved by satisfying the condition of the expression (7). Is suppressed.
- the shaft hole 13 and the flow path 50 are separated.
- the flow path 50 may be defined by the shaft member 40 and the recess 17 of the rotor core 11.
- FIG. 12 is a diagram illustrating an example of a rotor 10G according to the seventh embodiment.
- three flow paths 50 are arranged around the shaft member 40
- two flow paths 50 may be arranged around the shaft member 40.
- the four flow paths 50 may be arrange
- the number of the flow paths 50 is arbitrary.
- FIG. 13 is a diagram illustrating an example of the compressor 400 according to the present embodiment.
- the compressor 400 includes the electric motor 100 described in the above embodiment.
- a compressor 400 includes an airtight container 2, an electric motor 100 disposed in the internal space of the airtight container 2, and a compression mechanism unit that is disposed in the internal space of the airtight container 2 and operates by power generated by the electric motor 100.
- the electric motor 100 includes a rotor 10 and a stator 20. Electric power is supplied to the electric motor 100 via the glass terminal 240 and the lead wire 250.
- the compressor 400 is a two-cylinder rotary compressor.
- the compressor 400 may be a scroll compressor, a one-cylinder rotary compressor, a multi-stage rotary compressor, a swing rotary compressor, a vane compressor, and a reciprocating compressor.
- the shaft member 8 includes a main shaft 8a fixed to the rotor 10 of the electric motor 100, a sub shaft 8b, a main shaft side eccentric portion 8c and a sub shaft side eccentric portion disposed between the main shaft 8a and the sub shaft 8b. 8d and an intermediate shaft 8e provided between the main shaft side eccentric portion 8c and the sub shaft side eccentric portion 8d.
- the main shaft 8a is rotatably supported by the bearing 6.
- the sub shaft 8b is rotatably supported by the bearing 7.
- the main shaft 8a corresponds to the shaft member 40 described in the above embodiment.
- the compression mechanism 500 is disposed in the internal space of the first cylinder 5a, the first piston 9a disposed in the internal space of the first cylinder 5a, the second cylinder 5b, and the second cylinder 5b. And a second piston 9b.
- the first cylinder 5a has a suction port for taking in gas from the refrigeration cycle into the internal space of the first cylinder 5a, and a discharge port for discharging gas in the internal space of the first cylinder 5a.
- the second cylinder 5b has a suction port for taking in gas from the refrigeration cycle into the internal space of the second cylinder 5b, and a discharge port for discharging gas in the internal space of the second cylinder 5b.
- the accumulator 310 is disposed outside the sealed container 2.
- the first cylinder 5a is connected to the accumulator 310 via the suction pipe 320a.
- the second cylinder 5b is connected to the accumulator 310 via the suction pipe 320b.
- the refrigerant gas compressed by the first cylinder 5a and the second cylinder 5b is discharged into the internal space of the sealed container 2 and supplied from the discharge pipe 330 to the refrigeration cycle of the refrigeration air conditioner.
- the lubricating oil 260 that lubricates the sliding portion of the compression mechanism 500 is stored at the bottom of the internal space of the sealed container 2. Due to the centrifugal force of the rotating shaft member 8, the lubricating oil 260 at the bottom of the sealed container 2 is formed along the shaft member 8. Lubricating oil 26 is supplied to the sliding portion of the compression mechanism 500 through an oil supply hole provided in the shaft member 8.
- the lubricating oil 260 includes a sliding portion between the main shaft 8a and the bearing 6, a sliding portion between the main shaft side eccentric portion 8c and the first piston 9a, a sub shaft side eccentric portion 8d and the second piston. The sliding portion between 9b and the sliding portion between the sub shaft 8b and the bearing 7 is supplied.
- the compressor 400 includes the electric motor 100 described in the above embodiment. Therefore, the efficiency of the compressor 400 can be increased.
- a fluid such as refrigerant and oil exists in the internal space of the sealed container 2 of the compressor 400.
- the fluid passes through the rotor 10.
- the rotor 10 has the flow path 50 described in the above embodiment. The fluid can smoothly flow through the flow path 50.
- the occurrence of magnetic saturation in the electric motor 100 is suppressed. Thereby, the high efficiency of the electric motor 100 and the compressor 400 is achieved.
- FIG.14 and FIG.15 is a figure which shows an example of the air blower 500 which concerns on this Embodiment.
- the blower 500 includes the electric motor 100 described in the above embodiment. 14 and 15, the blower 500 includes an outdoor unit of an air conditioner.
- the electric motor 100 drives the fan 501.
- the electric motor 100 and the fan 501 are disposed in the internal space of the housing 502.
- Fan 501 is operated by the power generated by electric motor 100.
- a vibration isolation member 503 is disposed at a connection portion between the fan 501 and the output shaft of the electric motor 100 and a connection portion between the electric motor 100 and the housing 502.
- the blower 500 includes the electric motor 100 described in the above embodiment. Therefore, high efficiency of the blower 500 can be achieved.
- FIG. 16 is a diagram illustrating an example of the blower 600 according to the present embodiment.
- the blower 600 includes the electric motor 100 described in the above embodiment.
- the blower 600 includes an indoor unit of an air conditioner.
- the electric motor 100 drives the fan 601.
- the electric motor 100 and the fan 601 are disposed in the internal space of the housing 602.
- Fan 601 is operated by the power generated by electric motor 100.
- a vibration isolation member 603 is disposed at a connection portion between the fan 601 and the output shaft of the electric motor 100 and a connection portion between the electric motor 100 and the housing 602.
- the blower 600 includes the electric motor 100 described in the above embodiment. Therefore, high efficiency of the blower 600 can be achieved.
- the induction motor rotor 10 includes a rotor core 11 and a cage conductor 30.
- the electric motor 100 may be a synchronous motor.
- the rotor of the synchronous motor includes a permanent magnet.
- the rotor includes a cylindrical member that is disposed around the shaft member and connected to the outer surface of the shaft member.
- the flow path 50 described in the above embodiment may be provided in the rotor of the synchronous motor.
- the present invention is useful for an electric motor rotor, an electric motor having a rotor, a compressor having an electric motor, and a blower.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
図1は、電動機100の一例を示す断面図である。図2は、電動機100の回転子10の一例を示す斜視図である。図3は、電動機100の回転子10の一例を示す平面図である。図4は、図3の一部を拡大した図である。図5は、電動機100における磁束の流れを示す図である。
C < D …(1)
流路50は、(1)式の条件を満たす。
E = F …(2)
流路50は、(2)式の条件を満たす。
L < C …(3)
流路50は、(3)式の条件を満たす。本実施の形態において、距離Lは、距離E及び距離Fと同一である。
A ≧ B …(4)
流路50は(4)式を満たしている。
図7は、実施の形態2に係る回転子10Bの一例を示す図である。図7に示すように、第2面52は、径方向の外側に凹む曲面を含む。
Rq < L/2 …(5)
流路50は(5)式の条件を満たす。距離Lは、第3面53の径方向の寸法及び第4面54の径方向の寸法と同一である。
図8は、実施の形態3に係る回転子10Cの一例を示す図である。図8に示すように、第1角部61及び第2角部62が曲面を含んでもよい。図8に示す例においては、中心軸AXと直交する平面内において、第1角部61は円弧を含み、第2角部62は円弧を含む。
図9は、実施の形態4に係る回転子10Dの一例を示す図である。図9に示すように、中心軸AXと直交する平面内において、第3角部63と中心軸AXとを結ぶ第1仮想線IL1と、第4角部64と中心軸AXとを結ぶ第2仮想線IL2との間に、第1角部61及び第2角部62が配置されることを条件に、回転方向の第1面51の一端部と第1面51の他端部との距離Cが定められる。第3面53及び第4面54も、第1仮想線IL1と第2仮想線IL2との間に配置される。
A ≧ B …(6)
流路50は、(6)式の条件を満たしていてもよい。これにより、回転子10の製造が円滑に行われ、磁気飽和の発生が抑制される。
図10は、実施の形態5に係る回転子10Eの一例を示す図である。図10に示すように、シャフト部材40と流路50との間に、回転子鉄心11の一部が配置されてもよい。すなわち、流路50の第1面51、第2面52、第3面53、及び第4面54が、回転子鉄心11に設けられてもよい。図10に示すように、シャフト孔13と流路50とが分離していても、(1)式などの条件が満たされるように流路50が形成されることによって、流体は流路50を円滑に流れ、磁気飽和の発生が抑制される。
図11は、実施の形態6に係る回転子10Fの一例を示す図である。図11に示すように、流路50の第1面51、第2面52、第3面53、及び第4面54が、回転子鉄心11に設けられている。
Rp > L/2 …(7)
流路50は、(7)式の条件を満たす。距離Lは、径方向の第3面53の寸法及び第4面54の寸法と同一である。
Rq < Rp …(8)
流路50は、(8)式の条件を満たす。
図12は、実施の形態7に係る回転子10Gの一例を示す図である。上述の実施の形態においては、流路50がシャフト部材40の周囲において3つ配置される例について説明した。図12に示すように、流路50は、シャフト部材40の周囲において2つ配置されてもよい。なお、流路50は、シャフト部材40の周囲において4つ配置されてもよいし、5つ配置されてもよい。流路50の数は、任意である。
次に、実施の形態8に係る圧縮機400の一例について説明する。図13は、本実施の形態に係る圧縮機400の一例を示す図である。圧縮機400は、上述の実施の形態で説明した電動機100を備えている。
次に、実施の形態9に係る送風機500の一例について説明する。図14及び図15は、本実施の形態に係る送風機500の一例を示す図である。送風機500は、上述の実施の形態で説明した電動機100を備えている。図14及び図15に示す例において、送風機500は、空気調和機の室外機を含む。
次に、実施の形態10にかかる送風機600の一例について説明する。図16は、本実施の形態に係る送風機600の一例を示す図である。送風機600は、上述の実施の形態で説明した電動機100を備えている。図16に示す例において、送風機600は、空気調和機の室内機を含む。
Claims (19)
- シャフト部材と接続され中心軸を中心に回転する電動機の回転子であって、
前記中心軸を中心に回転する前記シャフト部材の少なくとも一部が配置されるシャフト孔と、
前記シャフト部材の周囲に複数配置され前記中心軸と平行な方向に貫通する流路と、
を備え、
前記流路の内面は、前記シャフト部材の径方向の外側を向く第1面と、前記径方向において前記第1面の外側に配置され前記第1面と間隙を介して対向する第2面と、前記中心軸を中心とする回転方向の前記第1面の一端部と前記第2面の一端部とを結ぶ第3面と、前記回転方向の前記第1面の他端部と前記第2面の他端部とを結ぶ第4面と、を含み、
前記第1面の一端部と前記第1面の他端部との距離をC、前記第2面の一端部と前記第2面の他端部との距離をDとしたとき、
C < D、
の条件を満たす回転子。 - 前記径方向の前記第1面と前記第2面との距離をLとしたとき、
L < C、
の条件を満たす請求項1に記載の回転子。 - 前記シャフト部材の周囲に配置され前記シャフト部材の外面と接続される筒状部材を備え、
前記第1面は、前記シャフト部材に設けられ、
前記第2面、前記第3面、及び前記第4面は、前記筒状部材に設けられる請求項1又は請求項2に記載の回転子。 - 前記第2面は、前記径方向の外側に凹む曲面を含む請求項1から請求項3のいずれか一項に記載の回転子。
- 前記第2面は、前記中心軸を中心とする曲面を含む請求項1から請求項3のいずれか一項に記載の回転子。
- 前記流路は、前記第1面と前記第3面とを結ぶ第1角部と、前記第1面と前記第4面とを結ぶ第2角部と、前記第2面と前記第3面とを結ぶ第3角部と、前記第2面と前記第4面とを結ぶ第4角部と、を含む請求項1から請求項5のいずれか一項に記載の回転子。
- 前記第1角部、前記第2角部、前記第3角部、及び前記第4角部の少なくとも一つは、曲面を含む請求項6に記載の回転子。
- 前記中心軸と直交する平面内において、前記第1角部は円弧を含み、前記第2角部は円弧を含み、
前記第1角部の曲率半径及び前記第2角部の曲率半径をRp、前記径方向の前記第1面と前記第2面との距離をLとしたとき、
Rp > L/2、
の条件を満たす請求項6又は請求項7に記載の回転子。 - 前記中心軸と直交する平面内において、前記第3角部は円弧を含み、前記第4角部は円弧を含み、
前記第3角部の曲率半径及び前記第4角部の曲率半径をRq、前記径方向の前記第1面と前記第2面との距離をLとしたとき、
Rq < L/2、
の条件を満たす請求項6又は請求項7に記載の回転子。 - 前記中心軸と直交する平面内において、前記第1角部は円弧を含み、前記第2角部は円弧を含み、前記第3角部は円弧を含み、前記第4角部は円弧を含み、
前記第1角部の曲率半径及び前記第2角部の曲率半径をRp、前記第3角部の曲率半径及び前記第4角部の曲率半径をRqとしたとき、
Rq < Rp、
の条件を満たす請求項6又は請求項7に記載の回転子。 - 前記中心軸と直交する平面内において、前記第3角部と前記中心軸とを結ぶ第1仮想線と、前記第4角部と前記中心軸とを結ぶ第2仮想線との間に前記第1角部及び前記第2角部が配置されることを条件に、前記第1面の一端部と前記第1面の他端部との距離が定められる請求項6から請求項10のいずれか一項に記載の回転子。
- 第1の前記流路の前記第3角部と第1の前記流路の隣の第2の前記流路の前記第4角部との距離をA、第1の前記流路の前記第1角部と第2の前記流路の前記第2角部との距離をBとしたとき、
A ≧ B、
の条件を満たす請求項11に記載の回転子。 - 前記中心軸と直交する平面内において、前記第3角部と前記中心軸とを結ぶ第1仮想線と前記第3面とが一致し、前記第4角部と前記中心軸とを結ぶ第2仮想線と前記第4面とが一致する請求項6から請求項10のいずれか一項に記載の回転子。
- 前記シャフト部材の周囲に配置され前記シャフト部材の外面と接続される回転子鉄心と、
前記回転子鉄心のスロットに配置される非磁性且つ導電性のロータバーと前記ロータバーに接続されるエンドリングとを含むかご形導体と、を有する請求項1から請求項13のいずれか一項に記載の回転子。 - 前記電動機は単相誘導電動機である請求項1から請求項14のいずれか一項に記載の回転子。
- 前記電動機の固定子により生成された2極の回転磁界で回転する請求項1から請求項15のいずれか一項に記載の回転子。
- 回転磁界を生成する固定子と、
前記固定子の前記回転磁界で回転する請求項1から請求項16のいずれか一項に記載の回転子と、
を備える電動機。 - 請求項17に記載の電動機を備える圧縮機。
- 請求項17に記載の電動機を備える送風機。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14896857.1A EP3166208B1 (en) | 2014-07-01 | 2014-07-01 | Rotor, electric motor, compressor, and fan |
PCT/JP2014/067575 WO2016002012A1 (ja) | 2014-07-01 | 2014-07-01 | 回転子、電動機、圧縮機、及び送風機 |
CN201480079362.2A CN106416002B (zh) | 2014-07-01 | 2014-07-01 | 转子、电动机、压缩机以及鼓风机 |
US15/307,097 US10348145B2 (en) | 2014-07-01 | 2014-07-01 | Rotor, electric motor, compressor, and blower |
JP2016530732A JP6305535B2 (ja) | 2014-07-01 | 2014-07-01 | 回転子、電動機、圧縮機、及び送風機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/067575 WO2016002012A1 (ja) | 2014-07-01 | 2014-07-01 | 回転子、電動機、圧縮機、及び送風機 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016002012A1 true WO2016002012A1 (ja) | 2016-01-07 |
Family
ID=55018612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/067575 WO2016002012A1 (ja) | 2014-07-01 | 2014-07-01 | 回転子、電動機、圧縮機、及び送風機 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10348145B2 (ja) |
EP (1) | EP3166208B1 (ja) |
JP (1) | JP6305535B2 (ja) |
CN (1) | CN106416002B (ja) |
WO (1) | WO2016002012A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018220806A1 (ja) * | 2017-06-02 | 2018-12-06 | 三菱電機株式会社 | リラクタンスモータ、圧縮機および空気調和装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6305535B2 (ja) * | 2014-07-01 | 2018-04-04 | 三菱電機株式会社 | 回転子、電動機、圧縮機、及び送風機 |
DE102017220662A1 (de) | 2016-11-30 | 2018-05-30 | Aktiebolaget Skf | Lageranordnung mit einem integrierten Generator |
EP3726709B8 (en) * | 2017-12-12 | 2024-06-05 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Squirrel-cage induction rotating electric machine, solid rotor, and squirrel-cage induction rotating electric machine design method |
EP3832852A1 (de) * | 2019-12-04 | 2021-06-09 | Hilti Aktiengesellschaft | Verbindung rotorwelle zu blechpaket |
US11973370B2 (en) * | 2021-03-15 | 2024-04-30 | Anhui Meizhi Precision Manufacturing Co., Ltd. | Motor, compressor and refrigeration device |
CN113964988A (zh) * | 2021-10-26 | 2022-01-21 | 山东博源精密机械有限公司 | 一种新能源汽车高散热铸铝转子 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5556922U (ja) * | 1978-10-12 | 1980-04-17 | ||
JPS5923261U (ja) * | 1982-07-30 | 1984-02-13 | 三菱電機株式会社 | 電動機用回転子 |
JPS6049261U (ja) * | 1983-09-13 | 1985-04-06 | 本田技研工業株式会社 | エアクリ−ナの吸気装置 |
JPS60114555U (ja) * | 1984-01-06 | 1985-08-02 | 三菱電機株式会社 | 回転電機の界磁鉄心 |
JPS617239U (ja) * | 1984-06-19 | 1986-01-17 | 芝浦メカトロニクス株式会社 | 回転機の回転子冷却構造 |
JPS6390322U (ja) * | 1986-12-01 | 1988-06-11 | ||
JPS63245239A (ja) * | 1987-03-31 | 1988-10-12 | Toshiba Corp | 誘導電動機の回転子 |
JP2004041000A (ja) * | 2003-09-16 | 2004-02-05 | Hitachi Ltd | 電動車両用の永久磁石回転電機 |
JP2008086164A (ja) * | 2006-09-28 | 2008-04-10 | Toshiba Corp | 全閉外扇形電動機 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS518407U (ja) * | 1974-07-05 | 1976-01-22 | ||
US3997803A (en) * | 1974-08-01 | 1976-12-14 | Westinghouse Electric Corporation | Rotor member for dynamoelectric machines with longitudinal passages of decreasing area communicating with radial core vents |
US4301386A (en) * | 1977-08-12 | 1981-11-17 | General Electric Co. | Rotor laminae assembly for a cast rotor dynamoelectric machine |
JPS55158643U (ja) | 1979-04-27 | 1980-11-14 | ||
JPS5671441A (en) | 1979-11-13 | 1981-06-15 | Toshiba Corp | Rotary electric machine |
JPS59109240U (ja) | 1983-01-13 | 1984-07-23 | 三菱電機株式会社 | 回転電機の界磁鉄心 |
JPS60160047U (ja) | 1984-04-02 | 1985-10-24 | 三菱電機株式会社 | 同期発電機の通風冷却装置 |
JPS63198349U (ja) | 1987-06-12 | 1988-12-21 | ||
US5986366A (en) * | 1998-09-23 | 1999-11-16 | Sundstrand Corporation | Rotor for a dynamoelectric machine |
JP2000350415A (ja) | 1999-06-04 | 2000-12-15 | Meidensha Corp | 回転電機の固定構造 |
MY156192A (en) * | 2008-08-05 | 2016-01-29 | Mitsubishi Electric Corp | Induction motor and hermetic compressor |
JP4762301B2 (ja) | 2008-12-19 | 2011-08-31 | 三菱電機株式会社 | 圧縮機用電動機及び圧縮機及び冷凍サイクル装置 |
EP2299565B1 (de) | 2009-09-17 | 2012-08-15 | Siemens Aktiengesellschaft | Kühlung eines Asynchronläufers |
EP2549624B1 (en) * | 2011-07-22 | 2019-05-01 | LG Innotek Co., Ltd. | Rotor core for motor |
DE102012220239A1 (de) | 2012-11-07 | 2014-05-08 | Continental Automotive Gmbh | Elektrische Maschine mit innerer Luftkühlung |
JP6305535B2 (ja) * | 2014-07-01 | 2018-04-04 | 三菱電機株式会社 | 回転子、電動機、圧縮機、及び送風機 |
-
2014
- 2014-07-01 JP JP2016530732A patent/JP6305535B2/ja active Active
- 2014-07-01 WO PCT/JP2014/067575 patent/WO2016002012A1/ja active Application Filing
- 2014-07-01 CN CN201480079362.2A patent/CN106416002B/zh active Active
- 2014-07-01 EP EP14896857.1A patent/EP3166208B1/en active Active
- 2014-07-01 US US15/307,097 patent/US10348145B2/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5556922U (ja) * | 1978-10-12 | 1980-04-17 | ||
JPS5923261U (ja) * | 1982-07-30 | 1984-02-13 | 三菱電機株式会社 | 電動機用回転子 |
JPS6049261U (ja) * | 1983-09-13 | 1985-04-06 | 本田技研工業株式会社 | エアクリ−ナの吸気装置 |
JPS60114555U (ja) * | 1984-01-06 | 1985-08-02 | 三菱電機株式会社 | 回転電機の界磁鉄心 |
JPS617239U (ja) * | 1984-06-19 | 1986-01-17 | 芝浦メカトロニクス株式会社 | 回転機の回転子冷却構造 |
JPS6390322U (ja) * | 1986-12-01 | 1988-06-11 | ||
JPS63245239A (ja) * | 1987-03-31 | 1988-10-12 | Toshiba Corp | 誘導電動機の回転子 |
JP2004041000A (ja) * | 2003-09-16 | 2004-02-05 | Hitachi Ltd | 電動車両用の永久磁石回転電機 |
JP2008086164A (ja) * | 2006-09-28 | 2008-04-10 | Toshiba Corp | 全閉外扇形電動機 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3166208A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018220806A1 (ja) * | 2017-06-02 | 2018-12-06 | 三菱電機株式会社 | リラクタンスモータ、圧縮機および空気調和装置 |
JPWO2018220806A1 (ja) * | 2017-06-02 | 2019-11-07 | 三菱電機株式会社 | リラクタンスモータ、圧縮機および空気調和装置 |
US11264847B2 (en) | 2017-06-02 | 2022-03-01 | Mitsubishi Electric Corporation | Reluctance motor, compressor, and air conditioner |
Also Published As
Publication number | Publication date |
---|---|
US20170047802A1 (en) | 2017-02-16 |
JPWO2016002012A1 (ja) | 2017-04-27 |
CN106416002A (zh) | 2017-02-15 |
US10348145B2 (en) | 2019-07-09 |
CN106416002B (zh) | 2019-10-15 |
EP3166208A4 (en) | 2018-01-24 |
EP3166208B1 (en) | 2019-08-21 |
EP3166208A1 (en) | 2017-05-10 |
JP6305535B2 (ja) | 2018-04-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6305535B2 (ja) | 回転子、電動機、圧縮機、及び送風機 | |
JP6584513B2 (ja) | 回転子、回転電機、電動圧縮機および冷凍空調装置 | |
TWI569560B (zh) | A permanent magnet type rotating machine, and a compressor using the same | |
JP6109338B2 (ja) | 永久磁石埋込型電動機、圧縮機及び冷凍空調装置 | |
JP6858845B2 (ja) | ロータ、電動機、圧縮機および空気調和装置 | |
JP6571293B2 (ja) | 回転子、回転電機、および圧縮機 | |
JP5490251B2 (ja) | 誘導電動機の回転子及び誘導電動機及び圧縮機及び送風機及び空気調和機 | |
JP6692896B2 (ja) | 電動機、送風機、圧縮機および空気調和装置 | |
JP6422566B2 (ja) | モータの回転子及びこれを用いた圧縮機用モータ並びに圧縮機 | |
JPWO2007116431A1 (ja) | 単相電動機及び密閉型圧縮機 | |
WO2014097472A1 (ja) | 永久磁石埋込型電動機および圧縮機 | |
JP6942246B2 (ja) | ロータ、電動機、圧縮機および空気調和装置 | |
WO2017208291A1 (ja) | 固定子、電動機、圧縮機、及び冷凍空調装置 | |
JP5143166B2 (ja) | 単相誘導電動機及び密閉型圧縮機 | |
TWI655828B (zh) | Permanent magnet rotary electric machine and compressor using same | |
JP6789390B2 (ja) | リラクタンスモータ、圧縮機および空気調和装置 | |
JP7237178B2 (ja) | ロータ、電動機、圧縮機、及び空気調和機 | |
WO2018011850A1 (ja) | ロータ、電動機、送風機、圧縮機および空気調和装置 | |
JP6261672B2 (ja) | ネオジウム永久磁石型モータ、及び、該ネオジウム永久磁石型モータを備えた密閉型圧縮機 | |
JP2011083171A (ja) | 圧縮機用電動機及び圧縮機及び冷凍サイクル装置 | |
KR102515118B1 (ko) | 매립형 영구자석 전동기용 로터 | |
JPWO2020026431A1 (ja) | ステータ、モータ、圧縮機、及び冷凍空調装置 | |
JP7450805B2 (ja) | モータ、圧縮機および冷凍サイクル装置 | |
JP7026811B2 (ja) | ステータ、電動機、圧縮機および空気調和装置 | |
WO2022113346A1 (ja) | ステータ、モータ、圧縮機および冷凍サイクル装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14896857 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016530732 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15307097 Country of ref document: US |
|
REEP | Request for entry into the european phase |
Ref document number: 2014896857 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014896857 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: IDP00201608168 Country of ref document: ID |
|
NENP | Non-entry into the national phase |
Ref country code: DE |