CN114678972A - Armature core, rotating electrical machine, elevator hoist, and method for manufacturing armature core - Google Patents
Armature core, rotating electrical machine, elevator hoist, and method for manufacturing armature core Download PDFInfo
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- CN114678972A CN114678972A CN202110591931.3A CN202110591931A CN114678972A CN 114678972 A CN114678972 A CN 114678972A CN 202110591931 A CN202110591931 A CN 202110591931A CN 114678972 A CN114678972 A CN 114678972A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 40
- 238000005452 bending Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000004804 winding Methods 0.000 description 8
- 239000000725 suspension Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 239000012212 insulator Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
Images
Classifications
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- 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
- H02K1/12—Stationary parts of the magnetic circuit
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/021—Magnetic cores
- H02K15/022—Magnetic cores with salient poles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention provides an armature core, a rotating electrical machine, an elevator hoist, and a method for manufacturing the armature core. An armature core is provided which can suppress the enlargement of an armature core manufacturing facility. The 1 st core pieces (51) include a plurality of pressing core pieces (510) and at least 1 non-pressing core piece (511). When the core body (31A) is manufactured, the 2 nd protruding parts (51e) of the plurality of pressing core pieces (510) are pressed and bent radially inward of the core body (31A) in a state where the 1 st core piece (41) and the 2 nd core piece (42) are combined. At this time, the 2 nd protrusion (51e) of the non-pressing core piece (511) is kept in a non-pressing state.
Description
Technical Field
The invention relates to an armature core, a rotating electrical machine, an elevator hoist, and a method for manufacturing the armature core.
Background
In a conventional rotating electrical machine, 2 block connectors are connected to form an annular stator core. A caulking portion is provided at one end of each of the connecting bodies. The caulking portion is bent inward in the radial direction of the stator core and is plastically deformed (for example, see patent document 1).
Documents of the prior art
Patent literature
Patent document 1: international publication No. 2013/136485
In the conventional stator core as described above, the caulking portion is bent inward in the radial direction of the stator core in the entire axial direction of the stator core. Therefore, particularly when the axial dimension of the stator core is large, the equipment for pressing the caulking portion becomes large.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object thereof is to provide an armature core, a rotating electrical machine, an elevator hoisting machine, and a method for manufacturing the armature core, which can suppress an increase in size of manufacturing equipment.
An armature core according to the present invention includes a core body having a plurality of core pieces annularly connected, each core piece having a plurality of core pieces, the plurality of core pieces being stacked in an axial direction of the core body, the plurality of core pieces including a 1 st core piece and a 2 nd core piece adjacent to the 1 st core piece, each of the plurality of 1 st core pieces as the core pieces constituting the 1 st core piece including: 1 st protruding part; a 2 nd protrusion located further outward in the radial direction of the core body than the 1 st protrusion; and a 1 st recess portion formed between the 1 st protruding portion and the 2 nd protruding portion, each of the 2 nd core pieces as the core pieces constituting the 2 nd core block having: a 2 nd recess into which the 1 st protrusion is inserted; and a 3 rd protruding part inserted into the 1 st recess, wherein the 1 st core pieces include a plurality of pressing core pieces and at least 1 non-pressing core piece, and the 2 nd protruding part of each pressing core piece is bent inward in the radial direction of the core body than the 2 nd protruding part of the non-pressing core piece.
Effects of the invention
According to the present invention, an increase in size of the manufacturing facility of the armature core can be suppressed.
Drawings
Fig. 1 is a side view showing an elevator according to embodiment 1.
Fig. 2 is a sectional view of the elevator traction machine of fig. 1.
Fig. 3 is a front view illustrating the stator of fig. 2.
Fig. 4 is a side view showing the stator of fig. 2.
Fig. 5 is a front view illustrating the core main body of fig. 3.
Fig. 6 is a front view showing a state in the middle of manufacturing the block connected body of fig. 5.
Fig. 7 is a front view showing a VII portion of the 1 st ferrite core piece of fig. 6 in an enlarged manner.
Fig. 8 is a front view showing a VIII portion of the 2 nd core plate of fig. 6 in an enlarged manner.
Fig. 9 is a front view showing a state in which the 1 st yoke portion of fig. 7 and the 2 nd yoke portion of fig. 8 are combined.
Fig. 10 is a front view showing a state in which the 2 nd protrusion of fig. 9 is pressurized.
Fig. 11 is a side view showing an enlarged portion XI of fig. 4.
Description of the reference symbols
3: an elevator traction machine; 5: a drive sheave; 21: a traction machine motor (rotating electric machine); 31: a stator core (armature core); 31A: an iron core main body; 35: a core block; 36: an iron core sheet; 41: 1 st iron core block; 42: a 2 nd iron core block; 51: 1 st iron core plate; 51 d: 1 st protruding part; 51 e: a 2 nd projection; 51 f: 1 st recess; 52: 2 nd iron chip; 52 d: a 3 rd protruding part; 52 f: a 2 nd recess; 510: pressing the iron core sheet; 511: a non-pressurized iron core sheet.
Detailed Description
Hereinafter, embodiments will be described with reference to the drawings.
Embodiment 1.
Fig. 1 is a side view showing an elevator of embodiment 1. In fig. 1, a machine room 2 is provided above a hoistway 1. An elevator hoisting machine 3 and a deflector sheave 6 are provided in the machine room 2. The elevator hoisting machine 3 has a hoisting machine main body 4 and a drive sheave 5.
A suspension body 7 is wound around the drive sheave 5 and the deflector sheave 6. A plurality of ropes or a plurality of belts are used as the suspension body 7. A car 8 is connected to the 1 st end in the longitudinal direction of the suspension body 7. A counterweight 9 is connected to the 2 nd end of the suspension body 7 in the longitudinal direction.
The car 8 and the counterweight 9 are suspended in the hoistway 1 by the suspension body 7. Further, the car 8 and the counterweight 9 are raised and lowered in the hoistway 1 by rotating the drive sheave 5.
A pair of car guide rails 10 and a pair of counterweight guide rails 11 are provided in the hoistway 1. In fig. 1, only one car guide rail 10 of the car 8 and one counterweight guide rail 11 of the counterweight 9 are shown.
A pair of car guide rails 10 guide the raising and lowering of the car 8. A pair of counterweight guide rails 11 guide the raising and lowering of the counterweight 9.
The car 8 has a car frame 12 and a car room 13. The suspension body 7 is connected to the car frame 12. The car room 13 is supported by the car frame 12.
Fig. 2 is a sectional view of the elevator traction machine 3 of fig. 1, showing a section through the axis of the drive sheave 5. The hoisting machine main body 4 has a hoisting machine motor 21 as a rotating electric machine and a hoisting machine brake 22. The hoisting machine motor 21 rotates the drive sheave 5. The traction machine brake 22 maintains the stationary state of the drive sheave 5. Further, the hoisting machine brake 22 brakes the rotation of the drive sheave 5.
The hoisting machine motor 21 has a frame 23, a 1 st bearing 24, a 2 nd bearing 25, a main shaft 26, a rotor 27 as a field element, and a stator 28 as an armature.
The main shaft 26 is rotatably supported by the frame 23 via the 1 st bearing 24 and the 2 nd bearing 25. The drive sheave 5 is fixed to the 1 st end in the axial direction of the main shaft 26. Thereby, the drive sheave 5 rotates integrally with the main shaft 26. The axial direction of the main shaft 26 is a horizontal direction and is a direction parallel to the X axis of fig. 2.
The rotor 27 is fixed to an axially intermediate portion of the main shaft 26. The rotor 27 has a plurality of magnets.
The stator 28 and the rotor 27 face each other with a gap therebetween. The stator 28 includes an annular stator core 31 as an armature core, a plurality of stator windings 32, and a plurality of insulators 33.
The stator core 31 is fixed in the frame 23 by press-fitting or shrink-fitting. The plurality of stator windings 32 are wound around the stator core 31. Each insulator 33 is interposed between the corresponding stator winding 32 and the stator core 31. Each insulator 33 insulates the corresponding stator winding 32 from the stator core 31.
The hoisting machine brake 22 includes a brake disc 34, a brake shoe, a brake spring, and an electromagnet.
The brake disk 34 is fixed between the 2 nd end portion in the axial direction of the main shaft 26 and the 2 nd bearing 25. Thereby, the brake disk 34 rotates integrally with the main shaft 26.
The brake shoe is pressed against the brake disc 34 by a brake spring. The rotation of the brake disc 34 is prevented by the frictional force generated between the brake disc 34 and the brake shoes. The electromagnet overcomes the brake spring to move the brake shoe away from the brake disc 34.
Fig. 3 is a front view showing the stator 28 of fig. 2. The stator core 31 has an annular core main body 31A. In this example, the stator core 31 is constituted only by the core body 31A.
The core main body 31A has a plurality of core blocks 35. The plurality of core blocks 35 are connected in an annular shape. Each core block 35 has a yoke portion 35a and a tooth portion 35 b. Each tooth 35b protrudes from the yoke 35a radially inward of the stator core 31. The radial direction of the core body 31A is a direction along the radius of the core body 31A.
Each stator winding 32 is wound around a corresponding tooth portion 35 b. In addition, the plurality of stator windings 32 are connected in a certain order.
Fig. 4 is a side view showing the stator 28 of fig. 2. Each core block 35 has a plurality of core pieces 36. In each core block 35, a plurality of core pieces 36 are stacked in the axial direction of the core main body 31A. The axial direction of the core body 31A is a direction along the axial center of the core body 31A, and is a direction parallel to the X axis in fig. 4. The thickness of each core piece 36 is set to a dimension selected from the range of 0.1mm to 1.0mm, for example.
Fig. 5 is a front view illustrating the core main body 31A of fig. 3. The core body 31A is configured by connecting 2 arc-shaped block connecting bodies 37 to each other. The core body 31A is provided with 2 coupling body coupling portions 38. Each block connecting body 37 of embodiment 1 is configured by connecting 6 core blocks 35.
Fig. 6 is a front view showing a state in the middle of manufacturing the block coupling body 37 of fig. 5. The block connecting body 37 is manufactured in a state where 6 core blocks 35 are linearly connected.
The plurality of insulators 33 and the plurality of stator windings 32 are attached to a block connecting body 37 which is developed into a shape shown in fig. 6. Thereafter, as shown in fig. 5, the block connecting body 37 is bent into a semicircular shape.
The 6 core blocks 35 constituting the block assembly 37 include a 1 st core block 41, a 2 nd core block 42, and 43 rd core blocks 43.
The 1 st core block 41 is disposed at one end of the block connecting body 37. The 2 nd core block 42 is disposed at the other end of the block connecting body 37. The 43 rd core blocks 43 are disposed between the 1 st core block 41 and the 2 nd core block 42.
The yoke portion 35a of the 3 rd core block 43 is coupled to the yoke portions 35a of the 2 adjacent core blocks 35 so as to be rotatable about the shaft portion 35 c.
Hereinafter, each of the core pieces 36 constituting the 1 st core piece 41 is referred to as a 1 st core piece 51. In addition, each of the core pieces 36 constituting the 2 nd core block 42 is referred to as a 2 nd core piece 52.
Each 1 st core piece 51 has a 1 st yoke piece portion 51a corresponding to the yoke portion 35a and a 1 st tooth piece portion 51b corresponding to the tooth portion 35 b. Each 2 nd core piece 52 has a 2 nd yoke piece portion 52a corresponding to the yoke portion 35a and a 2 nd tooth piece portion 52b corresponding to the tooth portion 35 b.
Fig. 7 is a front view showing a VII portion of the 1 st ferrite piece 51 of fig. 6 in an enlarged manner. The 1 st yoke piece portion 51a has a 1 st main portion 51c, a 1 st projecting portion 51d, a 2 nd projecting portion 51e, and a 1 st recessed portion 51 f.
When the 1 st core piece 51 is assembled to the core main body 31A, the 1 st protruding portion 51d, the 2 nd protruding portion 51e, and the 1 st recess 51f are provided at a portion of the 1 st yoke piece portion 51A adjacent to the 2 nd yoke piece portion 52 a.
The 1 st projection 51d and the 2 nd projection 51e project from the 1 st main portion 51c, respectively. The 1 st projecting portion 51d projects obliquely outward in the radial direction of the core main body 31A from the 1 st main portion 51 c. The 2 nd projection 51e is located radially outward of the core main body 31A relative to the 1 st projection 51 d. The 1 st recess 51f is formed between the 1 st projection 51d and the 2 nd projection 51 e.
The 2 nd protrusion 51e is disposed radially inward of the core main body 31A with respect to the outer circumference of the core main body 31A. The projecting amount of the 2 nd projecting portion 51e from the 1 st main portion 51c is larger than the projecting amount of the 1 st projecting portion 51d from the 1 st main portion 51 c.
Further, the 2 nd projecting portion 51e has a 1 st tip portion 51g and a 1 st connecting portion 51 h. The 1 st connecting portion 51h connects the 1 st tip portion 51g and the 1 st main portion 51 c. The size of the 1 st connecting portion 51h in the radial direction of the core main body 31A is smaller than the size of the 1 st distal end portion 51g in the radial direction of the core main body 31A.
Fig. 8 is an enlarged front view showing a VIII portion of the 2 nd core piece 52 of fig. 6. The 2 nd yoke piece portion 52a has a 2 nd main portion 52c, a 3 rd protruding portion 52d, a 4 th protruding portion 52e, and a 2 nd recessed portion 52 f.
When the 2 nd core piece 52 is assembled to the core main body 31A, the 3 rd protruding portion 52d, the 4 th protruding portion 52e, and the 2 nd recessed portion 52f are provided in a portion of the 2 nd yoke piece portion 52a adjacent to the 1 st yoke piece portion 51A.
The 3 rd projecting portion 52d and the 4 th projecting portion 52e project from the 2 nd main portion 52c, respectively. Further, the 3 rd protruding portion 52d is provided at the same position as the 1 st recessed portion 51f in the radial direction of the core main body 31A. The 4 th protruding portion 52e is located radially inward of the core main body 31A relative to the 3 rd protruding portion 52 d. The 2 nd recess 52f is formed between the 3 rd and 4 th protrusions 52d and 52 e.
The 3 rd protruding portion 52d has a 2 nd tip portion 52g and an intermediate portion 52 h. The intermediate portion 52h is located between the 2 nd tip portion 52g and the 2 nd main portion 52 c. The size of the intermediate portion 52h in the radial direction of the core main body 31A is smaller than the size of the 2 nd end portion 52g in the radial direction of the core main body 31A. Further, the size of the intermediate portion 52h in the radial direction of the core main body 31A is larger than the size of the 1 st connecting portion 51h in the radial direction of the core main body 31A.
The 2 nd yoke piece portion 52a is provided with a notch 52i for the 2 nd projecting portion 51e to escape.
Fig. 9 is a front view showing a state in which the 1 st yoke piece portion 51a of fig. 7 and the 2 nd yoke piece portion 52a of fig. 8 are combined. In the state of fig. 9, the 1 st projection 51d is inserted into the 2 nd recess 52 f. The 3 rd protruding portion 52d is inserted into the 1 st recess 51 f. A gap exists between the 1 st recess 51f and the 3 rd protrusion 52 d.
When all the 1 st core pieces 51 stacked are in the state of fig. 9, the 1 st core piece 41 and the 2 nd core piece 42 can be moved mutually in the axial direction of the core main body 31A. From this state, the 2 nd projecting portion 51e is pressed and bent radially inward of the core main body 31A.
Fig. 10 is a front view showing a state in which the 2 nd protrusion 51e of fig. 9 is pressurized. In the plurality of 1 st core blocks 41, the 2 nd projecting portions 51e are pressed radially inward of the core main bodies 31A, respectively. Thereby, the 1 st core block 41 is positioned relative to the 2 nd core block 42, and the 1 st core block 41 and the 2 nd core block 42 are firmly joined.
In the state of fig. 10, the 2 nd protruding portion 51e is bent at the 1 st connecting portion 51 h. Thereby, the entire end surface of the 1 st distal end portion 51g located radially inward of the core main body 31A is pressed against the 3 rd protruding portion 52 d.
Further, the entire end surface of the 3 rd protruding portion 52d in the circumferential direction of the core main body 31A is pressed against the bottom surface of the 1 st recess 51 f. The circumferential direction of the core body 31A is a direction along a circumference centered on the axial center of the core body 31A. Further, the entire end surface of the 3 rd protruding portion 52d located on the radially inner side of the core main body 31A is pressed against the 1 st protruding portion 51 d.
Further, the entire end surface of the 1 st protruding portion 51d in the circumferential direction of the core main body 31A is pressed against the bottom surface of the 2 nd recessed portion 52 f. Further, the entire end surface of the 4 th protruding portion 52e in the circumferential direction of the core main body 31A is pressed against the 1 st main portion 51 c.
The 2 nd projecting portion 51e is bent with respect to the 1 st main portion 51c until the state of fig. 10 is reached, whereby the relative movement of the 1 st core piece 51 with respect to the 2 nd core piece 52 is ended.
Fig. 11 is an enlarged side view of the XI part of fig. 4, showing the connecting body connecting part 38 between the 1 st core block 41 and the 2 nd core block 42. The plurality of 1 st core pieces 51 includes a plurality of pressing core pieces 510 and at least 1 non-pressing core piece 511.
In the 1 st core block 41 of fig. 11, 16 1 st core pieces 51 are stacked. The 16 1 st iron core pieces 51 include 12 pressing iron core pieces 510 and 4 non-pressing iron core pieces 511.
In manufacturing the core main body 31A, the 2 nd projecting portions 51e of the plurality of pressing core pieces 510 are pressed radially inward of the core main body 31A and bent as shown in fig. 10 in a state where the 1 st core block 41 and the 2 nd core block 42 are combined. At this time, the 2 nd projecting portion 51e of the non-pressing core piece 511 is kept in a non-pressing state as shown in fig. 9. That is, the plurality of 2 nd projecting portions 51e are press-bent radially inward of the core main body 31A, except for a part of the core main body 31A in the axial direction. Thereby, the 1 st core block 41 and the 2 nd core block 42 are coupled.
In the 1 st core block 41 thus coupled to the 2 nd core block 42, the 2 nd projecting portion 51e of each pressing core piece 510 is bent inward in the radial direction of the core main body 31A than the 2 nd projecting portion 51e of the non-pressing core piece 511.
However, each non-pressing core piece 511 is bonded to the 1 st core piece 51 adjacent in the lamination direction by bonding or caulking. Therefore, each of the non-pressing core pieces 511 is displaced integrally with the plurality of pressing core pieces 510 along with the displacement of the plurality of pressing core pieces 510 by the pressing.
In the stator core 31 and the manufacturing method thereof, the plurality of 2 nd projecting portions 51e are pressed radially inward of the core main body 31A in addition to a part of the core main body 31A in the axial direction, and the 1 st core block 41 and the 2 nd core block 42 are coupled. Therefore, as compared with the case where all the 2 nd projecting portions 51e are pressurized at the same time, the pressurizing range can be narrowed, and the increase in size of the manufacturing equipment can be suppressed.
Further, the process of bending a thin sheet in a plane is called edgewise bending (Japanese: エッジワイズ bending). Originally, if the sheet is not restrained by some force, the sheet is easily bent in the out-of-plane direction. For example, the 2 nd 1 st core piece 51 from the left in fig. 11 is easily bent toward the 1 st core piece 51 side or the 3 rd 1 st core piece 51 side.
However, the 2 nd 1 st ferrite piece 51 is substantially sandwiched by the 1 st ferrite piece 51 and the 3 rd 1 st ferrite piece 51, and thus is not easily deformed in the out-of-plane direction.
When the 1 st segment iron plate 51 is subjected to the edgewise bending process, although one is constrained by the 2 nd 1 st segment iron plate 51, there is a possibility that the plate is deformed in the out-of-plane direction because there is no constraining member in the opposite direction.
In contrast, in embodiment 1, the non-pressing core piece 511 is disposed at one end of the 1 st core block 41 in the axial direction of the core main body 31A. Therefore, the 1 st core pieces 41 as a whole are suppressed from being deformed in the out-of-plane direction by the 1 st core pieces 51.
The pressing core piece 510 is disposed at the other end of the 1 st core block 41 in the axial direction of the core main body 31A, but deformation of the pressing core piece 510 is suppressed by seating the core main body 31A on a support seat, not shown.
In fig. 11, the plurality of non-pressure core pieces 511 are arranged at equal intervals in the axial direction of the core body 31A. In this case, the manufacturing equipment can be downsized by pressing the plurality of 2 nd protrusions 51e for each bundle of the pressing core pieces 510 between the 2 non-pressing core pieces 511 adjacent in the stacking direction. Further, the pressurizing force can be suppressed, and the 1 st core pieces 51 can be further suppressed from being deformed in the out-of-plane direction on the entire 1 st core pieces 41.
As shown in fig. 2, the stator core 31 is fixed in the frame 23 by press-fitting or shrink-fitting. In this case, the 2 nd projecting portion 51e is disposed radially inward of the core main body 31A with respect to the outer circumference of the core main body 31A. Therefore, the interference between the 2 nd projecting portion 51e of each non-pressing core piece 511 and the frame 23 can be suppressed.
Further, the size of the 1 st connecting portion 51h in the radial direction of the core main body 31A is smaller than the size of the 1 st distal end portion 51g in the radial direction of the core main body 31A. Therefore, the pressing force for bending each 2 nd projecting portion 51e can be reduced.
The number of the 1 st core pieces 51 is determined, for example, according to the torque required for the rotating electric machine, and is not limited to 16.
The number of the non-pressing core pieces 511 is not particularly limited, and may be, for example, only 1 located at one end of the 1 st core piece 41. Further, 1 non-pressing core piece 511 may be disposed at each of both ends of the 1 st core piece 41. Since the axial dimension of the core body 31A is likely to vary, the number of the non-pressure core pieces 511 may be determined, for example, by the margin of the axial dimension of the core body 31A.
In order to firmly connect the 1 st core block 41 and the 2 nd core block 42, it is preferable that 90% or more of the 1 st core pieces 51 included in the 1 st core block 41 be the pressing core pieces 510. More preferably, 95% or more of the 1 st core pieces 51 are the pressing core pieces 510.
Further, the 1 st core pieces 51 may include pieces in which the 2 nd projecting portions 51e are bent to an intermediate state in fig. 9 and 10.
The number of the block connectors 37 included in 1 core body 31A may be 1. In this case, the number of the coupling body coupling portions 38 included in the core body 31A is also 1. The number of block connectors 37 included in 1 core body 31A may be 3 or more.
The layout of the entire elevator is not limited to the layout of fig. 1. For example, the roping pattern may be 2: 1 rope winding mode.
The elevator may be a machine room-less elevator, a double-deck elevator, a single-shaft multi-car elevator, or the like. The single-shaft multi-car system is a system in which an upper car and a lower car disposed directly below the upper car are raised and lowered independently in a common shaft.
The armature core is not limited to the stator core 31, and may be a rotor core, for example.
The rotating electric machine is not limited to the hoisting machine motor 21, and may be a rotating electric machine other than the elevator hoisting machine 3.
Claims (5)
1. An armature core, wherein,
the armature core includes a core body having a plurality of core blocks connected in a ring shape,
each of the core blocks has a plurality of core pieces stacked in an axial direction of the core body,
the plurality of core blocks includes a 1 st core block and a 2 nd core block adjacent to the 1 st core block,
each of a plurality of 1 st core pieces as the core pieces constituting the 1 st core block has:
1 st protruding part;
a 2 nd protrusion located further outward in the radial direction of the core main body than the 1 st protrusion; and
a 1 st recess formed between the 1 st protrusion and the 2 nd protrusion,
Each of a plurality of 2 nd core pieces as the core pieces constituting the 2 nd core block has:
a 2 nd recess into which the 1 st protrusion is inserted; and
a 3 rd protruding part inserted into the 1 st recess,
the plurality of 1 st core pieces include a plurality of pressurized core pieces and at least 1 non-pressurized core piece,
the 2 nd protruding portion of each of the pressing core pieces is bent inward in the radial direction of the core main body than the 2 nd protruding portion of the non-pressing core piece.
2. The armature core of claim 1,
the non-pressing core piece is disposed at one end of the 1 st core piece in the axial direction of the core body.
3. A rotating electric machine, wherein,
the rotating electrical machine includes the armature core according to claim 1 or 2.
4. An elevator traction machine, wherein,
the elevator hoist is provided with:
a drive sheave; and
a traction machine motor that rotates the drive sheave,
the rotating electrical machine according to claim 3 is used as the hoisting machine motor.
5. A method for manufacturing an armature core is provided,
the armature core includes a core body having a plurality of core blocks connected in a ring shape,
Each of the core blocks has a plurality of core pieces stacked in an axial direction of the core main body,
the plurality of core blocks includes a 1 st core block and a 2 nd core block adjacent to the 1 st core block,
each of the 1 st core pieces as the core pieces constituting the 1 st core block has:
a 1 st projection;
a 2 nd projection located further outward in the radial direction of the core body than the 1 st projection; and
a 1 st recess formed between the 1 st protrusion and the 2 nd protrusion,
each of a plurality of 2 nd core pieces as the core pieces constituting the 2 nd core block has:
a 2 nd recess into which the 1 st protrusion is inserted; and
a 3 rd protruding part inserted into the 1 st recess,
in the manufacturing method of the armature core described above,
the 1 st core block and the 2 nd core block are coupled by press-bending the plurality of 2 nd protrusions radially inward of the core body, excluding a part of the core body in the axial direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-214388 | 2020-12-24 | ||
| JP2020214388A JP7012815B1 (en) | 2020-12-24 | 2020-12-24 | Manufacturing method of armature core, rotary electric machine, elevator hoist, and armature core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114678972A true CN114678972A (en) | 2022-06-28 |
| CN114678972B CN114678972B (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110591931.3A Active CN114678972B (en) | 2020-12-24 | 2021-05-28 | Armature core, rotating electrical machine, elevator traction machine, and armature core manufacturing method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7012815B1 (en) |
| CN (1) | CN114678972B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003274579A (en) * | 2002-03-18 | 2003-09-26 | Matsushita Electric Ind Co Ltd | Stator of motor for hermetic compressor |
| CN104170214A (en) * | 2012-03-15 | 2014-11-26 | 三菱电机株式会社 | Armature of rotating electrical machine and method for manufacturing armature of rotating electrical machine |
| JP2015019507A (en) * | 2013-07-11 | 2015-01-29 | 三菱電機株式会社 | Rotating electric machine laminated iron core, rotating electric machine stator and rotating electric machine laminated iron core manufacturing method |
| WO2017175664A1 (en) * | 2016-04-08 | 2017-10-12 | 三菱電機株式会社 | Laminated core and manufacturing method therefor |
| JP2019068694A (en) * | 2017-10-05 | 2019-04-25 | トヨタ自動車株式会社 | Laminated core |
| CN109845068A (en) * | 2016-09-30 | 2019-06-04 | 日本电产株式会社 | The manufacturing method of rotor core, rotor, motor, the manufacturing method of rotor core and rotor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3661582B2 (en) | 2000-09-28 | 2005-06-15 | 日産自動車株式会社 | Rotor for magnet motor |
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2020
- 2020-12-24 JP JP2020214388A patent/JP7012815B1/en active Active
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- 2021-05-28 CN CN202110591931.3A patent/CN114678972B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003274579A (en) * | 2002-03-18 | 2003-09-26 | Matsushita Electric Ind Co Ltd | Stator of motor for hermetic compressor |
| CN104170214A (en) * | 2012-03-15 | 2014-11-26 | 三菱电机株式会社 | Armature of rotating electrical machine and method for manufacturing armature of rotating electrical machine |
| JP2015019507A (en) * | 2013-07-11 | 2015-01-29 | 三菱電機株式会社 | Rotating electric machine laminated iron core, rotating electric machine stator and rotating electric machine laminated iron core manufacturing method |
| WO2017175664A1 (en) * | 2016-04-08 | 2017-10-12 | 三菱電機株式会社 | Laminated core and manufacturing method therefor |
| CN109845068A (en) * | 2016-09-30 | 2019-06-04 | 日本电产株式会社 | The manufacturing method of rotor core, rotor, motor, the manufacturing method of rotor core and rotor |
| JP2019068694A (en) * | 2017-10-05 | 2019-04-25 | トヨタ自動車株式会社 | Laminated core |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022100430A (en) | 2022-07-06 |
| JP7012815B1 (en) | 2022-01-28 |
| CN114678972B (en) | 2024-05-17 |
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