Rotating electrical machine, stator for rotating electrical machine, and method for manufacturing stator for rotating electrical machine
阅读说明:本技术 旋转电机、旋转电机的定子及其制造方法 (Rotating electrical machine, stator for rotating electrical machine, and method for manufacturing stator for rotating electrical machine ) 是由 由利侑弥 水谷诚一 片山贵信 于 2019-02-07 设计创作,主要内容包括:定子(30)包括多个块(31、32、33)。多个块在轴向上层叠配置。远端块(31)和基端块(33)在内部块(32)的两侧啮合,使得多个磁极(30a)沿周向配置。远端跨接线(61j)配置在定子的一端。基端跨接线(63j)配置在定子的另一端。内部块的跨接线(62j)为绕过远端块磁极(31a)和基端块磁极(33a)的曲柄形。多根跨接线分散地配置在定子的上方。(The stator (30) includes a plurality of blocks (31, 32, 33). The plurality of blocks are stacked in the axial direction. The distal block (31) and the base block (33) are engaged on both sides of the inner block (32) such that the plurality of magnetic poles (30a) are arranged in the circumferential direction. The distal jumper wire (61j) is disposed at one end of the stator. The base end jumper wire (63j) is arranged at the other end of the stator. The jumper wire (62j) of the inner block is in a crank shape that bypasses the distal block magnetic pole (31a) and the base block magnetic pole (33 a). The plurality of jumper wires are arranged above the stator in a distributed manner.)
1. A stator of a rotary electric machine, comprising: a distal block (31) disposed at one end in the axial direction and having a plurality of distal block poles (31 a); a base block (33) which is disposed at the other end in the axial direction and has a plurality of base block poles (33 a); and an inner block (32) disposed between the distal block and the base block in the axial direction and having a plurality of inner block poles (32a),
the distal block, the inner block, and the base block being arranged along the axial direction such that the distal block magnetic pole, the base block magnetic pole, and the inner block magnetic pole are arranged along a circumferential direction,
a winding (61) of the distal block having a plurality of distal jumper wires (61j) extending across the plurality of unit coils and arranged at the one end,
a winding (63) of the base end block having a plurality of base end jumpers (63j) extending across the plurality of unit coils and arranged at the other end,
a winding (62) of the inner block having a crank-shaped inner jumper wire (62j) extending across a plurality of unit coils and configured to bypass an end block magnetic pole including the distal end block magnetic pole and the base end block magnetic pole.
2. The stator of a rotary electric machine according to claim 1, wherein the crank shape of the inner jumper wire (62j) includes an axial extension (73) between the distal end block pole and the base end block pole.
3. The stator of a rotary electric machine according to claim 1 or 2, wherein the crank shape of the inner jumper wire (62j) comprises an axial extension (77) between the end block pole and the inner block pole.
4. The stator of a rotating electrical machine according to any one of claims 1-3, wherein the internal jumper wire (62j) comprises a detour (73, 74, 75, 76, 77) configured to bypass the end block pole from the one end or the other end.
5. The stator of a rotating electric machine according to claim 4, wherein the detour portion has a U-shape that opens toward the one end or the other end.
6. The stator of the rotary electric machine according to claim 4 or 5, wherein winding directions of the plurality of unit coils in the winding of the inner block are the same.
7. The stator of the rotating electric machine according to any one of claims 1 to 6, wherein the internal jumper wire extends between adjacent two internal block poles on the internal block,
the distal jumper wire extends on the distal block between two of the distal block poles located one pole skipped.
8. The stator of the rotating electric machine according to any one of claims 1 to 7, wherein the internal jumper wire extends between adjacent two internal block poles on the internal block,
the base end jumper wire extends on the base end block between two base end block magnetic poles positioned so as to skip one magnetic pole.
9. The stator of the rotating electric machine according to any one of claims 1 to 8, wherein the plurality of magnetic poles include a bobbin (56) in which the unit coils are arranged,
And a jumper skeleton (57) holding the internal jumper.
10. The stator of a rotary electric machine according to claim 9, wherein the bobbin occupies a radially outer side of the magnetic pole,
the jumper bobbin is located radially more inward than the coil bobbin.
11. The stator of the rotating electric machine according to any one of claims 1-10, wherein the winding (62) of the inner block includes a plurality of continuous windings (62a, 62b) continuously wound on a plurality of the inner block poles.
12. A rotating electrical machine, comprising:
the stator of any one of claims 1-11,
And a rotor (26) that provides a rotating magnetic field to the stator.
13. A method of manufacturing a stator of a rotating electrical machine, the method comprising:
a block process (195) of manufacturing a plurality of blocks including a distal block (31) having a plurality of distal block poles (31a), a base block (33) having a plurality of base block poles (33a), and an inner block (32) having a plurality of inner block poles (32 a); and
a step (196) of assembling a stator by disposing the distal block at one axial end, the base block at the other axial end, and the inner block between the distal block and the base block such that the distal block magnetic pole, the base block magnetic pole, and the inner block magnetic pole are disposed in a circumferential direction;
the process of manufacturing a plurality of blocks includes:
a step (195c) for disposing a distal end jumper wire (61j) that spans a plurality of unit coils on a distal end surface of the distal end block;
a step (195c) for arranging a base end jumper wire (63j) spanning a plurality of unit coils on the base end surface of the base end block; and
forming an internal jumper (62j) across a plurality of unit coils in a crank shape to bypass a forming process (195h) of the distal block pole and/or the base block pole.
14. The method of manufacturing a stator of a rotating electrical machine according to claim 13, wherein the forming step forms the inner jumper wire into a U-shape that is open toward the one end or the other end.
15. The method of manufacturing a stator of a rotating electrical machine according to claim 13 or 14, wherein the block step winds the plurality of unit coils in the windings of the inner block in the same winding direction.
16. The manufacturing method of the stator of the rotating electrical machine according to any one of claims 13 to 15, wherein the block process includes: the step of disposing the internal jumper wire across two adjacent internal block magnetic poles, the step of disposing the distal jumper wire across two distal block magnetic poles positioned one magnetic pole away, and the step of disposing the base jumper wire across two base block magnetic poles positioned one magnetic pole away.
17. The method of manufacturing a stator of a rotating electrical machine according to any one of claims 13 to 16, wherein in the block step, a bobbin (56) around which the unit coil is wound and a jumper bobbin (57) that holds the internal jumper are formed.
Technical Field
The present disclosure relates to a rotating electrical machine, a stator of the rotating electrical machine, and a method of manufacturing the stator.
Background
Patent document 1 discloses a rotating electrical machine.
The disclosures in the prior art documents cited as background art are incorporated by reference into the present application as descriptions of technical elements in the present specification.
Disclosure of Invention
In the stator disclosed in
In view of the above and other points not mentioned above, further improvements are required for the rotary electric machine, the stator of the rotary electric machine, and the manufacturing method thereof.
An object of the present disclosure is to provide a rotating electric machine, a stator of the rotating electric machine, and a manufacturing method thereof, which can achieve a reduction in size.
Another object of the present disclosure is to provide a rotating electrical machine in which a plurality of jumper wires can be arranged in a dispersed manner on a stator, a stator of the rotating electrical machine, and a method of manufacturing the stator.
The stator of the rotary electric machine disclosed herein includes: a distal block (31) disposed at one end in the axial direction and having a plurality of distal block poles (31 a); a base block (33) which is disposed at the other end in the axial direction and has a plurality of base block poles (33 a); and an inner block (32) which is arranged between the distal end block and the base end block in the axial direction and has a plurality of inner block magnetic poles (32 a). A distal block, an inner block, and a base block of a stator of the rotating electrical machine are arranged in an axial direction such that a distal block magnetic pole, a base block magnetic pole, and an inner block magnetic pole are arranged in a circumferential direction; the winding (61) of the distal block has a plurality of distal end jumpers (61j) extending across the plurality of unit coils and arranged at one end, the winding (63) of the base block has a plurality of base end jumpers (63j) extending across the plurality of unit coils and arranged at the other end, and the winding (62) of the inner block has a crank-shaped inner jumper (62j) extending across the plurality of unit coils and arranged so as to bypass the end block magnetic pole including the distal block magnetic pole and the base end block magnetic pole.
According to the disclosed stator of a rotating electrical machine, interference between a plurality of jumper wires and a plurality of blocks is suppressed. The plurality of jumper wires are arranged above one end and the other end of the stator in a distributed manner. Therefore, the size of the stator is prevented from being increased.
The rotating electric machine disclosed herein includes the above-described stator, and a rotor (26) that supplies a rotating magnetic field to the stator.
Disclosed herein is a method for manufacturing a stator of a rotating electrical machine, comprising: a block process (195) for manufacturing a plurality of blocks including a distal block (31) having a plurality of distal block poles (31a), a base block (33) having a plurality of base block poles (33a), and an inner block (32) having a plurality of inner block poles (32 a); and a step (196) of assembling the stator by disposing the distal end block at one end in the axial direction, the proximal end block at the other end in the axial direction, and the inner block between the distal end block and the proximal end block such that the distal end block magnetic pole, the proximal end block magnetic pole, and the inner block magnetic pole are disposed in the circumferential direction. The process of manufacturing a plurality of blocks includes: a step (195c) for disposing a distal end jumper wire (61j) that spans a plurality of unit coils on a distal end surface of the distal end block; a step (195c) for arranging a base jumper wire (63j) that spans a plurality of unit coils on the base end surface of the base block; and a forming step (195h) for forming the inner jumper wire (62j) that spans the plurality of unit coils in a crank shape so as to bypass the distal end block magnetic pole and/or the base end block magnetic pole.
The various modes disclosed in the present specification adopt different technical means to achieve respective purposes. The parenthesized reference signs described in the claims and claims are merely exemplary in correspondence with the corresponding portions of the embodiments described below, and are not intended to limit the technical scope. The objects, features and effects disclosed in the present specification will become more apparent by referring to the following detailed description and accompanying drawings.
Drawings
Fig. 1 is a sectional view of a rotating electric machine according to a first embodiment.
Fig. 2 is a circuit diagram of the rotating electric machine.
Fig. 3 is a plan view of the stator.
Fig. 4 is a side view of the stator.
Fig. 5 is a perspective view of the stator.
Fig. 6 is an exploded perspective view of the stator.
Fig. 7 is a perspective view showing an end block of one end of the stator.
Fig. 8 is a perspective view showing an inner block of the stator.
Fig. 9 is a perspective view showing an end block of the other end of the stator.
Fig. 10 is a process diagram illustrating a method of manufacturing a rotating electric machine.
Fig. 11 is a process diagram illustrating a method of manufacturing a stator.
Fig. 12 is an exploded cross-sectional view of the end block.
Fig. 13 is an exploded cross-sectional view of the inner block.
Fig. 14 is an exploded cross-sectional view of the end block.
Fig. 15 is a side view illustrating a forming process of the internal jumper.
Fig. 16 is a side view illustrating the forming process of the internal jumper.
Fig. 17 is a side view of the inner block.
Fig. 18 is an exploded side view of the stator.
Fig. 19 is a plan view showing the bobbin.
Fig. 20 is a plan view showing the bobbin.
Fig. 21 is a circuit diagram showing a winding of the second embodiment.
Fig. 22 is a side view showing an inner block of the third embodiment.
Detailed Description
The embodiments are described with reference to the drawings. In each embodiment, corresponding parts and/or associated parts in terms of functions and/or structures are sometimes denoted by the same reference numerals or by reference numerals differing only in digits of hundreds or more. The corresponding parts and/or associated parts may refer to the description in the other embodiments.
First embodiment
In fig. 1, a rotating
The engine has a
The
The
The
The
The
The
The
The distal core 41, at the
The thicknesses of the plurality of
In fig. 2, the
One phase winding includes a plurality of
The plurality of
The winding 60 has a plurality of junctions 68. The joint portion 68 can be provided by various connection methods such as welding, resistance welding, fusion (fusing), TIG welding, and laser welding. In the present embodiment, the wire for forming the winding 60 is made of aluminum or an aluminum alloy. The neutral point electrode 64 and the output electrodes 65, 66, and 67 are made of an iron-based alloy. The joint 68 may be provided by electric welding. The connection method of the joint 68 may be appropriately changed depending on the material of the
Fig. 3 shows the
Referring to fig. 3 to 6, the magnetic poles 30a No. 1, No. 4, No. 7, No. 10, No. 13, and No. 16 belong to the distal end block 31. These poles 30a, also referred to as distal block poles 31 a. Thus, the distal block 31 has a plurality of distal block poles 31 a. A plurality of distal block poles 31a, equally spaced from each other. A plurality of distal block poles 31a, providing windings of electrically equal phase.
The poles 30a No. 3, No. 6, No. 9, No. 12, No. 15, and No. 18 belong to the inner block 32. These poles 30a, also referred to as internal block poles 32 a. Thus, the inner block 32 has a plurality of inner block poles 32 a. The plurality of inner block poles 32a are equally spaced from each other. The inner block poles 32a, provide windings of electrically the same phase.
The magnetic poles 30a No. 2, No. 5, No. 8, No. 11, No. 14, and No. 17 belong to the base block 33. These magnetic poles 30a are also referred to as base end block magnetic poles 33 a. Thus, the base block 33 has a plurality of base block magnetic poles 33 a. The plurality of base block poles 33a are equally spaced from each other. The base-end block magnetic pole 33a provides a winding of an electrically identical phase.
Returning to fig. 3, the
The
The
The
One distal jumper wire 61j, for example, continuously connects the unit coil No. 10 with the unit coil No. 4. A distal jumper 61j belonging to the distal block 31. The distal jumper wire 61j is disposed at one end of the
Fig. 4 shows the side of the
Fig. 5 shows a perspective view of the
The
Fig. 6 shows a virtual state in which the
Fig. 7 is a perspective view showing the distal block 31. The distal block 31 has a core 41, an insulator 51, and an X-phase winding 61. The core 41 includes a plurality of
The X-phase winding 61 includes a plurality of continuous windings 61a and 61 b. The 1 st continuous winding 61a is wound in the order of the No. 13 magnetic pole, the jumper wire, the No. 7 magnetic pole, the jumper wire, and the No. 1 magnetic pole. The 2 nd continuous winding 61b is wound in the order of the 10 th magnetic pole, the jumper wire, the 4 th magnetic pole, the jumper wire, and the 16 th magnetic pole.
A plurality of distal jumpers 61j extend between two of the poles 30a positioned across one of the poles 30a in the same phase. That is, the distal jumper wire 61j extends between two magnetic poles 30a separated by only the inter-pole angle RD. The inter-pole angle RD corresponds to the pitch between the three in-phase magnetic poles 30 a. The angle RD, also called the double angle. Specifically, the inter-pole angle RD is 120 degrees. The X-phase winding 61 is wound around the plurality of magnetic poles 31a at an inter-pole angle RD. As a result, the circumferential length of the distal jumper wire 61j is longer than that in the case where the jumper wire is disposed so as to straddle the adjacent two same-phase magnetic poles 30 a. The relatively long distal jumper 61j contributes to suppressing a difference in length from an inner jumper 62j described later. The relatively long distal jumper wire 61j contributes to suppressing a difference in resistance components and a difference in induced components between the distal jumper wire 61j and the inner jumper wire 62 j.
The 1 st continuous winding 61a is wound across the 3 magnetic poles 30 a. The 1 st continuous winding 61a is wound in the range of 2 × RD. 2 RD occupies 2/3 of the angular extent of distal block 31. The 2 nd continuous winding 61b is wound across the 3 magnetic poles 30 a. The 2 nd continuous winding 61b is wound in the range of 2 × RD. 2 RD occupies 2/3 of the angular extent of distal block 31. As a result, the 1 st continuous winding 61a and the 2 nd continuous winding 61a overlap each other in the circumferential direction of the distal end block 31.
The distal jumper wires 61j are all disposed above one end of the distal block 31. Therefore, all of the plurality of distal end crossovers 61j are arranged above the end surface of the
And a plurality of distal end jumpers 61j arranged to contact the plurality of unit coils 61 u. Therefore, the plurality of distal jumper wires 61j are arranged so as to suppress the height of the
Fig. 8 is a perspective view showing the inner block 32 disposed between the two blocks 31, 33. The inner block 32 includes a core 42, an
A Y-phase winding 62 comprising a plurality of consecutive windings 62a and 62 b. The 1 st continuous winding 62a is wound in the order of the No. 12 magnetic pole, the jumper wire, the No. 9 magnetic pole, the jumper wire, and the No. 6 magnetic pole. The 2 nd continuous winding 62b is wound in the order of the No. 3 magnetic pole, the jumper wire, the No. 18 magnetic pole, the jumper wire, and the No. 15 magnetic pole.
A plurality of internal jumpers 62j extend between the two poles 30a of the same-phase poles 30a, which are positioned first. An inner jumper 62j extends between two adjacent poles 32a in the inner block 32. That is, the inner jumper line 62j extends between the two poles 30a separated by the inter-pole angle RS. The inter-pole angle RS corresponds to the distance between the two in-phase magnetic poles 30 a. The inter-pole angle RS, also called single angle. Specifically, the inter-pole angle RD is 60 degrees. The Y-phase winding 62 is wound around the plurality of magnetic poles 32a at an inter-pole angle RS.
The inner jumper wire 62j has a crank shape between the two magnetic poles 30 a. The inner jumper wire 62j has a crank shape as viewed in the radial direction from the side of the
The 1 st continuous winding 62a is wound across 3 magnetic poles 30 a. The 1 st continuous winding 62a is wound in the range of 2 × RS. The 2 xrs occupies 1/3 of the angular extent of the inner block 32. The 2 nd continuous winding 62b is wound across the 3 poles 30 a. The 2 nd continuous winding 62b is wound in the range of 2 × RS. The 2 xrs occupies 1/3 of the angular extent of the inner block 32. As a result, the 1 st continuous winding 62a and the 2 nd continuous winding 62b do not overlap each other in the circumferential direction of the inner block 32.
The plurality of inner jumpers 62j are all disposed above both ends of the inner block 32 and between the two magnetic poles 30 a. Thus, the plurality of inner crossovers 62j are all crank-shaped. The plurality of inner jumpers 62j are formed in an arc shape. The plurality of
The plurality of inner jumpers 62j are disposed in contact with the plurality of unit coils 62 u. Therefore, the plurality of inner jumper wires 62j are arranged so as to suppress the height of the
Fig. 9 is a perspective view showing the base block 33. The base block 33 includes a core 43, an
Z-phase winding 63, comprising a plurality of consecutive windings 63a and 63 b. The 1 st continuous winding 63a is wound in the order of the No. 11 magnetic pole, the jumper wire, the No. 17 magnetic pole, the jumper wire, and the No. 5 magnetic pole. The 2 nd continuous winding 63b is wound in the order of the 14 th magnetic pole, the jumper wire, the 2 nd magnetic pole, the jumper wire, and the 8 th magnetic pole.
The plurality of base end jumpers 63j extend between two magnetic poles 30a positioned one after the other and second among the magnetic poles 30a of the same phase. That is, the base end jumper wire 63j extends between the two magnetic poles 30a separated by only the inter-magnetic-pole angle RD. The circumferential length of the base end jumper wire 63j is longer than that in the case where a jumper wire is disposed across two adjacent magnetic poles 30a of the same phase. The long base end jumper 63j contributes to suppressing a difference in length from an internal jumper 62j described later. The longer base end jumper 63j contributes to suppressing a difference in resistance component and a difference in inductance component between the base end jumper 63j and the internal jumper 62 j.
The 1 st continuous winding 63a is wound across 3 magnetic poles 30 a. The 2 nd continuous winding 63b is wound across the 3 magnetic poles 30 a. The 1 st continuous winding 63a and the 2 nd continuous winding 63b overlap each other in the circumferential direction of the base end block 33.
The plurality of base end jumpers 63j are all disposed above the other end of the base end block 33. Thus, all of the plurality of base end jumpers 63j are arranged above the end surface of the
The plurality of base end jumpers 63j are arranged to contact the plurality of unit coils 63 u. Thus, the plurality of base end jumper wires 63j are arranged so that the height of the
The end block, including distal block 31 or base block 33, has an inter-pole angle RD. The end block inter-pole angle RD is greater than the inner block 32 inter-pole angle RS. The difference between the inter-magnetic-pole angle RD and the inter-magnetic-pole angle RS contributes to suppressing the difference in resistance component and/or the difference in inductance component between the phase windings.
Fig. 10 shows a manufacturing method of the rotating
Fig. 11 shows details of stator process 193. Stator process 193 includes a block process 195 of manufacturing a plurality of blocks 31, 32, 33. Stator process 193 includes an assembly process 196 and a wiring process 197. In the assembling step 196, the plurality of blocks 31, 32, and 33 manufactured in the block step 195 are assembled to the
The block process 195 includes end block processes 195a-195d that manufacture the distal block 31 and the base block 33. The block process 195 includes internal block processes 195e-195i for manufacturing the internal blocks 32. The end block processes 195a-195d and the inner block processes 195e-195i may be performed in parallel or sequentially.
In step 195a, the distal end core 41 and the
In the winding step 195b, a wire rod made of aluminum or an aluminum alloy is wound by concentrated winding. The distal end core 41 and the
In step 195c, the distal jumper wire 61j and the base jumper wire 63j are arranged at predetermined positions. Step 195c provides a step of disposing the distal end jumper wire 61j spanning the plurality of
Fig. 12 and 14 schematically show exploded states of the distal end core 41 and the
Returning to FIG. 11, in step 195e, the
Fig. 13 schematically shows an exploded state of the
On the
The plurality of core sheets may be fixed by caulking for deforming a portion of the core sheets. The plurality of core sheets may be fixed by rivet fixing with a rivet axially penetrating through the teeth. These different methods of attachment may be used instead of or in addition to bonding.
Fig. 15 shows a forming process of forming an intermediate from the wire in step 195 g. This forming step is also a step for forming the long internal jumper 62 j. In the figure, three inner block poles 32a of No. 6, No. 9, No. 12 associated with the 1 st continuous winding 62a in the inner block 32 are shown. Further, a connecting
In the holding step, the intermediate body 69 of the wire rod is pulled out by the manufacturing apparatus 70. The manufacturing apparatus 70 controls the wire rod by using a holder (holder)70a after finishing the winding of one unit coil 62 u. The manufacturing apparatus 70 pulls out the wire from the holder 70 a. The manufacturing apparatus 70 pulls the wire material so as to be hooked on the hook portion (フック)70b, and winds the wire material around the next magnetic pole 30 a. The hook portion 70b is spaced apart from the inner block 32 only by a predetermined distance in the axial direction. The wire is pulled out via the hook 70 b. As a result, the intermediate body 69 is provided via the long wire of the hook portion 70 b.
Fig. 16 shows a forming process of forming the intermediate body 69 into a crank shape in step 195 h. The manufacturing apparatus 70 includes forming molds 70c, 70d, 70e, 70f, and 70 g. The manufacturing apparatus 70 molds the intermediate body 69 into a crank shape using these molding dies. As a result, a crank-shaped inner jumper 62j is provided. The plurality of internal jumpers 62j provided on the intermediate block 32 are each crank-shaped.
Fig. 17 shows the manufactured shape of the inner block 32. The connecting
(1) The inner jumper wire 62j has a first circumferential extension 71 extending from the unit coil 62u1 wound first and extending along one end of the
(2) The inner jumper wire 62j has a bent portion 72 bent from the first circumferentially extending portion 71 toward between the distal end block magnetic pole 31a and the base end block magnetic pole 33 a.
(3) The inner jumper wire 62j has a first axially extending portion 73 that extends in the axial direction between the distal end block magnetic pole 31a and the base end block magnetic pole 33 a. The first axial extension 73 provides a crank-shaped portion. The inner jumper wire 62j passes between the distal end block magnetic pole 31a and the base end block magnetic pole 33a in the first axial extension 73.
(4) The inner jumper wire 62j has a bent portion 74 bent from the first axial extension 73 along the other end of the
(5) The inner jumper wire 62j has a second circumferential extension 75 extending along the other end of the
(6) The inner jumper wire 62j has a bent portion 76 bent from the second circumferential extension portion 75 toward between the distal block pole 31a and the inner block pole 32 a.
(7) The inner jumper 62j has a second axial extension 77 extending in the axial direction between the distal block pole 31a and the inner block pole 32 a. A second axial extension 77, providing a portion of a crank shape. An inner jumper 62j in the first axial extension 77 between the distal block pole 31a and the inner block pole 32 a. The inner jumper wire 62j may pass between the base end block magnetic pole 33a and the inner block magnetic pole 32a in the second axial extension portion 77, corresponding to the combined position of the distal end block 31 and the base end block 33.
(8) The inner jumper wire 62j has a bent portion 78 bent from the second axial extension 77 along one end of the
(9) The inner jumper wire 62j has a third circumferential extension 79 from the bent portion 78 to the unit coil 62u2 to be wound next. The third end is arc-shaped. In the example shown, the third circumferential extension 79, reaching pole number 9.
The inner jumper wire 62j continuously connects the unit coil 62u1 wound first and the unit coil 62u2 wound later. In the illustrated example, the winding direction of the unit coil 62u1 is the same as the winding direction of the
The distal block 31 and the base block 33 are combined from both ends of the inner block 32, respectively. Therefore, the inner jumper wires 62j of the inner block 32 need the axially extending portions 73, 77 in order to bypass the distal end block magnetic pole 31a and the base end block magnetic pole 33 a. In other words, the inner jumper wire 62j is formed in a crank shape so as to bypass the distal end block magnetic pole 31a and the base end block magnetic pole 33 a.
The inner jumper wires 62j of the continuous windings 62a, 62b are arranged mainly at one end of the
Alternatively, the jumper wires 62j of the continuous windings 62a, 62b can be arranged mainly at the other end of the
Thus, the inner jumper wire 62j is in a crank shape arranged to bypass the end block magnetic pole including the distal end block magnetic pole 31a and the base end block magnetic pole 33 a. Thus, interference between the plurality of jumper lines and the plurality of blocks is suppressed. The plurality of jumper wires are disposed at one end and the other end of the stator in a distributed manner. Further, the inner jumper 62j is shaped to have a U-shaped detour. The U-shaped circuitous part is opened towards one end or the other end. Thereby, the internal jumper 62j is bypassed around the end block including the distal block 31 and the base block 33. Thus, no change in winding direction is required. Thus, an internal jumper wire 62j that bypasses the engaged distal block magnetic pole 31a or base block magnetic pole 33a from the end may be provided.
Fig. 18 is a side view showing the engagement of the plurality of blocks 31, 32, 33. In the figure, the
Fig. 19 shows the shape of the bobbin for the winding 60 provided by the
Returning to fig. 11, block 195 includes a step of molding the
Fig. 20 shows a state in which a plurality of blocks 31, 32, 33 are combined. The internal jumper 62j is disposed in the
The plurality of
For example, the
Radial gaps 46 are formed between the plurality of
In the above-described embodiment, the distal jumper wire 61j of the distal block 31 is disposed at one end of the
The inner jumper wire 62j may have a U-shaped detour portion arranged to detour the end block magnetic pole from one end or the other end of the
An inner jumper 62j extends between adjacent two inner block poles 32a in the inner block 32. The inner jumper wire 62j is crank-shaped and thus longer than the distance between adjacent two magnetic poles 30a of the same phase. A distal jumper wire 61j extends on the distal block 31 between two distal block poles 31a located past one distal block pole 31 a. Therefore, the difference between the length of the inner jumper 62j and the length of the distal jumper 61j is suppressed. The base end jumper wire 63j extends between two base end block poles 33a positioned so as to skip one base end block pole 33a in the base end block 33. Therefore, the difference between the length of the inner jumper 62j and the length of the base jumper 63j is suppressed. Thus, the difference in resistance components and/or the difference in inductance components between the phase windings is suppressed.
And an
Second embodiment
This embodiment is a modification of the previous embodiment. In the above embodiment, one phase winding includes two continuous windings. For example, the X-phase winding 61 includes two continuous windings 61a and 61 b. A phase winding may have more than two consecutive windings. In the present embodiment, one phase winding includes three continuous windings 261a, 261b, and 261 c.
In fig. 21, an X-phase winding 61 is illustrated. As are the other phase windings. The X-phase winding 61 includes three continuous windings 261a, 261b, 261 c. One continuous winding having two unit coils 61 u. For example, the continuous winding 261a has two
The continuous winding 261b is connected in parallel with the continuous winding 261 c. The parallel circuit is connected to the neutral point electrode 64. The continuous winding 261a is connected in series to a parallel circuit including the continuous winding 261b and the continuous winding 261 c. And a continuous winding 261a connected to the output electrode 65. The continuous winding 261a is disposed between the output electrode 65 and the parallel circuit.
Between the 3 consecutive windings, an intra-phase joint 261p connecting them in series is provided. The inter-phase bonding portion 261p may be provided by direct connection between wires or by an electrode. In this embodiment, one phase winding also has a plurality of joints 68.
According to this embodiment, a circuit different from the previous embodiment can be obtained. Different circuits exhibit different output characteristics. Therefore, the electrical connection relationship of the plurality of
Third embodiment
This embodiment is a modification of the previous embodiment. In the above embodiment, the
In fig. 22, the inner block 32 has an
Further, the manufacturing apparatus 70 has a hook 370 h. The hook 370h is used at an intermediate stage for forming the inner jumper wire 62j in the winding process for forming the first continuous winding 62 a. And a hook 370h that may hold the wire by hooking the wire. The hook 370h of the manufacturing apparatus 70 hooks the wire after winding of the 12-gauge teeth is completed, for example. And a hook 370h for forming the intermediate body 69.
According to this embodiment, the intermediate body 69 can be manufactured by hooking the wire on the hook 370 h. The intermediate body 69 can be manufactured, for example, by changing the movement range of the wire rod for winding the 12-gauge tooth to pass through the hook 370h and the hook 70b after the winding is completed. Thus, the intermediate body 69 can be manufactured by changing only the movement range of the wire rod in the winding process.
Other embodiments
The invention in the present specification and the drawings and the like is not limited to the embodiments. The summary of the present invention includes the embodiments described above and modifications thereof that can be made by those skilled in the art. For example, the summary is not limited to the combinations of components and/or elements disclosed in the embodiments. The inventive content can be implemented in various combinations. The inventive content may further include an additional part that can be added to the embodiments. The summary of the invention includes embodiments in which components and/or elements of the embodiments are omitted. The summary of the invention includes substitutions and combinations of elements and/or components between one embodiment and another embodiment. The technical scope of the disclosure is not limited to the description of the embodiments. The technical scope of the present disclosure is defined by the description of the claims, and all changes that come within the meaning and range of equivalency of the claims are to be embraced therein.
The above embodiments provide a motor generator that can be used as a motor or a generator. Alternatively, the present disclosure may provide an electric motor or generator. In addition, the number of the magnetic poles 30a provided by the
In the above embodiment, the
In the above embodiment, the intermediate body 69 is formed into a crank shape by the manufacturing apparatus 70. Alternatively, the intermediate body 69 may be formed into a crank shape by the distal end block magnetic pole 31a and the base end block magnetic pole 33 a. Alternatively, the intermediate body 69 may be formed from the
In the above embodiment, the gaps 46 between the
In the above embodiment, the distal block 31 and the proximal block 33 are configured to be symmetrical about the axial direction. Alternatively, the two end blocks provided by distal block 31 and base block 33, respectively, may have different configurations. For example, only the distal end block 31 may be set to the inter-magnetic-pole distance RD, and the base block 33 may be set to the inter-magnetic-pole distance RS. For example, the
In the above embodiments, the thicknesses T41, T42, T43 are not equal. Alternatively, the thicknesses T41, T42, T43 may also be equal to each other. The plurality of
- 上一篇:一种医用注射器针头装配设备
- 下一篇:电动驱动装置以及电动动力转向装置