WO2024048313A1 - ステータ - Google Patents
ステータ Download PDFInfo
- Publication number
- WO2024048313A1 WO2024048313A1 PCT/JP2023/029758 JP2023029758W WO2024048313A1 WO 2024048313 A1 WO2024048313 A1 WO 2024048313A1 JP 2023029758 W JP2023029758 W JP 2023029758W WO 2024048313 A1 WO2024048313 A1 WO 2024048313A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coil
- portions
- slot
- wave
- wound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Definitions
- the present invention relates to a stator.
- a stator having a stator core provided with a plurality of slots is known.
- Such a stator is described, for example, in WO 2022/071029.
- the stator described in International Publication No. 2022/071029 includes a stator core provided with a plurality of slots and a coil portion attached to the stator core.
- the coil portion is composed of a conductor connection body.
- the conductor connector has a plurality of straight portions passing through the slots and a bent portion provided on one side in the axial direction of the stator core. In the coil part, two straight parts are connected to each other via a bent part.
- the straight portions of the coil portion are arranged in four layers arranged in the radial direction in each of the plurality of slots. That is, in one slot, four straight portions pass in line in the radial direction.
- the conductor connector then goes around the stator core so that the straight portions alternately pass through adjacent layers.
- the conductor coupling body goes around the stator core in a zigzag manner along the circumferential direction so that the straight part passes through the innermost layer and the second innermost layer alternately, and then the straight part passes through the stator core in a zigzag manner. It is configured to rotate around the stator core in a zigzag pattern along the circumferential direction by switching the layers it passes along the way and passing through the third innermost layer and the outermost layer alternately.
- stator described in International Publication No. 2022/071029 alternately passes through the innermost layer and the second inner layer, and then alternately passes through the third inner layer and the outermost layer.
- the two layers that alternate by being connected from the second inner layer to the third inner layer as they pass through are switched midway. Therefore, in order to switch the two layers that pass alternately, it is necessary to straddle the conductor of the other coil end part at the part where the second inner layer is connected to the third inner layer, so the coil end
- the size of the stator core in the axial direction increases in the middle of the slot in the radial direction. Since this increases the size of the stator, it is desired to reduce the size of the coil portion in the axial direction of the stator core.
- This invention has been made to solve the above problems, and one object of the invention is to provide a stator in which the size of the coil portion in the axial direction of the stator core can be reduced. It is.
- a stator includes a stator core including a plurality of slots extending in the axial direction, a coil portion disposed in each of the plurality of slots, and in which a conductive wire is wave-wound;
- the coil portion includes a plurality of slot accommodation portions accommodated in each of the plurality of slots in a lined manner along the radial direction of the stator core, and a plurality of slot accommodation portions accommodated in mutually different slots.
- a second coil end portion that connects the slot accommodating portions in pairs, and the first coil end portion is such that the radial position of the slot accommodating portions to be connected is toward one radial side toward the other radial direction.
- the second coil end portion connects at least one pair of wave-wound coil portions that are sequentially wave-wound in a stepwise manner by connecting the slot housing portions one pair at a time, and the coil portions are connected to each other.
- the wave-wound coil part winds the waves in a stepwise manner along one side in the circumferential direction from the other end in the radial direction to the one end, and the second coil end part changes the direction in the circumferential direction from one end.
- wave winding is performed in order from one end in the radial direction to the other end in the radial direction along the other side in the circumferential direction.
- connection used herein is described as a broad concept that includes not only connection by joining different conductor members, but also a state in which they are connected as one conductor.
- the coil portions extend from the other end in the radial direction to the one end along one side in the circumferential direction by the wave-wound coil portions that are connected to each other.
- the coil is wound in waves in a stepwise manner, and the direction in the circumferential direction is changed from one side to the other by the second coil end portion, and the coil is wound from one end in the radial direction to the other end along the other side in the circumferential direction. It is wrapped in waves in order.
- the diameter Unlike the case where slot accommodating parts adjacent in the direction are connected alternately, the radial position of the slot accommodating parts to be connected is
- the slot accommodating parts can be connected to each other without providing a switching part in the middle. Therefore, the slot accommodating parts can be connected to each other without providing a connecting part that straddles another coil part in the middle of the slot in the radial direction. As a result, the size of the coil portion in the axial direction of the stator core can be reduced.
- the first coil end portion forming one of the wave-wound coil portions connected to each other and the first coil end portion forming the other thereof have a diameter of the slot housing portion to which they are connected.
- the slot accommodating portions are connected to each other in pairs so that the directional positions are changed in parallel to each other in a stepwise manner.
- the positions of the connected slot accommodation parts in the radial direction are arranged so as to be changed in parallel to each other in stages.
- the shapes of the conductors constituting one and the other of the wave-wound coil parts connected to each other can be made common. Therefore, even when the wave-wound coil parts that are connected to each other are connected by folding back, it is possible to suppress an increase in the number of types of conductor member shapes, so that the number of types of conductor members used to form the coil parts can be reduced. It is possible to prevent this from increasing.
- the second coil end portion includes an outermost coil end portion that connects the slot accommodation portions arranged at the outermost radial direction in each of the plurality of slots;
- a plurality of wave-wound coil parts are provided, and a plurality of wave-wound coil parts and an innermost coil end part that connects the innermost slot housing parts are provided.
- the portion and the innermost coil end portion form a wave-wound coil portion in which the winding direction in the circumferential direction is changed multiple times.
- the plurality of wave-wound coil parts, the outermost coil end part, and the innermost coil end part form a wave-wound coil part in which the winding direction in the circumferential direction is changed multiple times. Therefore, the coil portion can be configured to be wave-wound while changing the winding direction in the circumferential direction multiple times at each of the radially innermost and outermost portions of the slot. Therefore, even when the number of slot accommodation parts accommodated in one slot increases, the coil part can be configured by folding back multiple times at each of the radially innermost and outermost parts of the slot. The size of the coil portion in the axial direction of the stator core can be reduced.
- the first coil end portions are arranged to be shifted outward or inward one by one in the radial direction among the slot accommodation portions arranged in different slots. Connect the slot accommodating parts one pair at a time.
- the coil portion can be configured by connecting the slot housing portions, which are arranged one by one in the radial direction and shifted outwardly or inwardly, to form a coil portion.
- the slot receiving portions can be closely arranged in each case. Therefore, the radial position of the slot accommodating parts to be connected can be changed stepwise in order toward one side in the radial direction while efficiently connecting to the plurality of slot accommodating parts arranged in the slot.
- the slot-accommodating parts can be connected to each other in pairs.
- the slot accommodating portion forming one of the wave-wound coil portions connected to each other and the slot accommodating portion forming the other are respectively arranged in adjacent slots.
- the slot accommodating part is arranged in a common slot in both one and the other of the wave-wound coil parts connected to each other, the coil for the magnet arranged in the rotor facing the stator Since the positional relationship of the parts becomes uneven, the current flowing through the wave-wound coil parts becomes uneven.
- the slot accommodating portion forming one side and the slot accommodating portion forming the other side of the wave-wound coil portions connected to each other are arranged in adjacent slots. It is possible to suppress the occurrence of bias in the current flowing through the wave-wound coil portion.
- the slot housing part forming the coil part can be placed in a pair of adjacent slots. By arranging them alternately, it is possible to suppress the occurrence of bias in the current flowing through the coil portion.
- the coil section includes a U-phase coil section, a V-phase coil section, and a W-phase coil section through which each of the three-phase alternating currents flows, and the U-phase coil section, the V-phase coil section, and the In each of the phase coil section and the W-phase coil section, the slot accommodation sections are arranged in pairs such that the radial position of the slot accommodation section is gradually changed toward one side in the radial direction.
- the end portions By being connected by the end portions, it has a wave-wound coil portion formed by the first coil end portion and the slot housing portion, and one and the other of the wave-wound coil portions that are connected to each other form a second coil end portion.
- the windings are connected so that the direction of the windings in the circumferential direction can be changed by.
- the radial position of the slot accommodation portion can be set stepwise in order toward one side in the radial direction.
- FIG. 1 is a plan view of a rotating electric machine (stator) according to an embodiment.
- FIG. 2 is a circuit diagram of a Y-connected three-phase coil section according to an embodiment.
- FIG. 2 is a perspective view of a stator according to one embodiment.
- FIG. 3 is a diagram showing the configuration of a first coil section of a U-phase coil section. It is a figure showing the composition of the 2nd coil part of a U phase coil part. It is a figure showing the composition of the 3rd coil part of a U phase coil part. It is a figure showing the composition of the 4th coil part of a U phase coil part.
- FIG. 6 is a diagram for explaining a portion connecting first turn slot accommodation portions on the outermost radial side. It is a figure for demonstrating the part which connects the slot accommodation parts of the 8th turn on the innermost diameter side of a radial direction. It is a figure for explaining the composition of the conductor member which constitutes a coil part.
- FIGS. 1 to 10 The structure of a rotating electrical machine 200 including a stator 100 according to this embodiment will be described with reference to FIGS. 1 to 10.
- the "axial direction” means the direction (Z direction: see FIG. 1) along the rotation axis (symbol O) of the stator core 10 (rotor 150).
- the Z1 direction side one side in the axial direction
- the other side is referred to as the Z2 direction side.
- the "circumferential direction” means the circumferential direction (direction A) of the stator core 10.
- One circumferential side is defined as the A1 direction
- the other side is defined as the A2 direction.
- the "radial direction” means the radial direction (direction B) with respect to the rotational axis of the stator core 10 (rotor 150).
- “radially inner side” and “inner diameter side” mean a direction toward the center of stator core 10 (B1 direction).
- “radially outer” and “outer diameter side” mean a direction toward the outside of stator core 10 (direction B2).
- the rotating electric machine 200 includes a stator 100 and a rotor 150.
- Each of stator 100 and rotor 150 is formed in an annular shape.
- Stator 100 and rotor 150 are opposed to each other.
- the rotor 150 is arranged radially inside the stator 100 (on the B1 direction side).
- the rotor 150 is provided with a plurality of permanent magnets (not shown). That is, the rotating electrical machine 200 of this embodiment is configured as an inner rotor type rotating electrical machine.
- Stator 100 includes stator core 10 .
- Stator core 10 is arranged to face rotor 150 in the radial direction. Further, the stator core 10 is provided with a plurality of (for example, 48) slots 11. Further, teeth 12 are provided between adjacent slots 11.
- the stator core 10 is configured such that, for example, a plurality of electromagnetic steel plates are laminated in the rotation center axis direction (Z1 direction and Z2 direction), and is configured to allow magnetic flux to pass therethrough. Further, the stator core 10 has end surfaces 10a on each of one side (Z1 direction side) and the other side (Z2 direction side) in the axial direction. Further, the stator 100 includes a coil section 20.
- the coil section 20 is connected to an external power supply section and is configured to be supplied with electric power (for example, three-phase AC power).
- the coil section 20 is configured to generate a magnetic field when supplied with electric power.
- the coil section 20 includes a U-phase coil section 30, a V-phase coil section 40, and a W-phase coil section 50, through which three-phase (U-phase, V-phase, and W-phase) alternating currents are passed.
- the U-phase coil section 30 includes a U-phase first coil section 31, a second coil section 32, a third coil section 33, and a fourth coil section 34 that are connected in parallel to each other.
- the V-phase coil section 40 includes a V-phase first coil section 41, a second coil section 42, a third coil section 43, and a fourth coil section 44 that are connected in parallel to each other.
- the W-phase coil section 50 includes a W-phase first coil section 51, a second coil section 52, a third coil section 53, and a fourth coil section 54 that are connected in parallel to each other.
- the U-phase coil section 30, the V-phase coil section 40, and the W-phase coil section 50 are Y-connected (star-connected).
- U-phase, V-phase, and W-phase AC power is input from the power line 61 to the U-phase coil section 30, the V-phase coil section 40, and the W-phase coil section 50, respectively.
- the output sides of each of the U-phase coil section 30, the V-phase coil section 40, and the W-phase coil section 50 are connected to each other via a neutral wire 62.
- the coil portion 20 is arranged in each of the plurality of slots 11, and the conductive wire is wound in waves.
- the coil portion 20 includes a slot accommodating portion 21 and a coil end portion 22.
- the slot accommodating portion 21 is accommodated in each of the plurality of slots 11 formed to extend in the axial direction (Z direction).
- the coil end portions 22 connect the plurality of slot accommodating portions 21 in pairs.
- the coil end portion 22 connects the slot accommodating portions 21 accommodated in different slots 11 to each other. That is, the coil part 20 disposed in the stator core 10 is arranged in a direction from one side in the axial direction to the other side (from the Z1 direction side to the Z2 direction side) in the part corresponding to the one slot accommodating part 21.
- the slot 11 After being placed in the slot 11, it crosses along the end surface 10a provided on the Z2 direction side of the stator core 10 at a portion corresponding to the coil end portion 22 on the Z2 direction side, and corresponds to another slot accommodation portion 21.
- the slot 11 has a configuration in which the slot 11 is disposed in another slot 11 different from the one slot 11 so as to go from the other side in the axial direction to the one side (from the Z2 direction side to the Z1 direction side).
- the coil portion 20 is formed so as to extend from the slot accommodating portion 21 along the end surface 10a, and further to be connected to the slot accommodating portion 21 at another different slot 11.
- the coil portion 20 is constructed by winding a conductor member 70 (see FIG. 10), which is a rectangular conducting wire, in waves.
- the U-phase coil section 30 the V-phase coil section 40, and the W-phase coil section 50 have the same configuration. Therefore, below, the U-phase coil section 30 will be explained.
- the U-phase coil section 30 includes a first coil section 31, a second coil section 32, a third coil section 33, and a fourth coil section 34, which are connected in parallel to each other and are combined in a cage shape. It is located at 10. Further, one end of each of the first coil section 31 , the second coil section 32 , the third coil section 33 , and the fourth coil section 34 is connected to the power line 61 . AC power is supplied from the power line 61. The other end of each of the first coil section 31 , second coil section 32 , third coil section 33 , and fourth coil section 34 is connected to the neutral wire 62 .
- each of the first coil section 31, second coil section 32, third coil section 33, and fourth coil section 34 of the U-phase coil section 30 has 48 slots 11.
- 1st hereinafter, ⁇ th'' is referred to as ⁇ #''
- the slots 11 of #31, the slots 11 of #36 and #37, and the slots 11 of #42 and #43 are two slots 11 adjacent to each other in the circumferential direction (direction A), respectively.
- 4 to 7 show the annular stator core 10 cut open so that the vertical direction is the radial direction (B direction) of the stator core 10, and the left and right direction is the circumferential direction (A direction) of the stator core 10.
- This is a diagram. That is, in FIGS. 4 to 7, the left and right ends of the figures are connected to each other.
- the V-phase coil section 40 and the W-phase coil section 50 are arranged in stator core 10 with two and four slots 11 shifted from U-phase coil section 30, respectively. ing.
- the plurality of slot accommodating portions 21 are accommodated in each of the plurality of slots 11 so as to be lined up along the radial direction (direction B) of the stator core 10. Specifically, in this embodiment, in one slot 11, eight slot accommodating portions 21 are arranged in a line in the radial direction. For example, in one slot 11, the slot accommodation portion 21 located at the outermost side (outer diameter side: B2 direction side) is placed as the first turn (first layer), and the slot housing part 21 is arranged at the innermost side (inner diameter side: B1 side).
- the slot accommodating portion 21 shown in FIG. 1 is the eighth turn (eighth layer).
- the slot accommodating portions 21 are arranged so that current flows through the positions indicated by white numbers on a black background in the order of the white numbers.
- the coil end portion 22 has a portion 23, a portion 24, and a portion 25.
- the coil end portions 22 (portions 23, 24, and 25) indicated by solid lines are arranged on the Z1 direction side of the stator core 10, and the coil end portions indicated by broken lines 22 (portion 23) indicates that it is disposed on the Z2 direction side of the stator core 10.
- the portion 23 is an example of a "first coil end portion” in the claims.
- the portion 24 is an example of a “second coil end portion” and an “outermost coil end portion” in the claims.
- the portion 25 is an example of a “second coil end portion” and an “innermost coil end portion” in the claims.
- the coil end portions 22 are schematically illustrated as straight lines when viewed from the Z direction, but the coil end portions 22 (portions 23, 25, The portion 24 and the portion 25) may have a curved shape when viewed from the Z direction.
- the portion 23 connects each pair of slot accommodating portions 21 having mutually different positions in the radial direction (B direction) among the plurality of slot accommodating portions 21 accommodated in mutually different slots 11 . Specifically, the portion 23 connects the slot accommodating portions 21 such that the radial position (number of turns) of the slot accommodating portions 21 to be connected is sequentially changed stepwise toward one side in the radial direction. do. That is, the portions 23 connect the slot accommodating portions 21 in pairs so that the number of turns increases toward one side in the circumferential direction (A1 direction side).
- the coil section 20 has four wave-wound coil sections 20a, 20b, and 4 wave-wound coil sections 20a, 20b, and 20b, each of which is wave-wound around the stator core 10 along a common circumferential direction by the section 23 and the slot housing section 21.
- a coil portion 20c and a wave-wound coil portion 20d are formed.
- the plurality of parts 23 and the slot accommodating part 21 are connected, so that the slot accommodating part 21 disposed on the outermost diameter side (first turn) to the slot accommodating portion 21 disposed on the innermost diameter side (eighth turn) are connected in order. That is, the plurality of portions 23 extend from the slot accommodating portion 21 disposed at the first turn position, which is the end of the other radial side (for example, the B2 direction side) of the slot 11, to one side (for example, the B1 direction side).
- the slot accommodating parts 21 are connected in pairs so that the radial positions of the slot accommodating parts 21 to be connected are sequentially changed stepwise up to the slot accommodating part 21 disposed at the 8th turn position, which is the end of the side. Connect one by one.
- the portions 23 are slot accommodating portions 21 that are arranged one by one shifted outwardly or inwardly in the radial direction (direction B) among the slot accommodating portions 21 disposed in different slots 11. Connect them in pairs. That is, in each of the wave-wound coil portions 20a to 20d, the portions 23 connect the slot accommodating portions 21 sequentially from the 8th turn to the 1st turn while shifting one turn at a time.
- the wave-wound coil portions 20a to 20d are provided to make at least one reciprocation (two reciprocations in this embodiment). That is, the wave-wound coil parts 20a to 20d are provided so that the flowing current makes at least one reciprocation (two reciprocations in this embodiment) along the circumferential direction.
- the direction of the current flowing through the coil section 20 along the circumferential direction is changed at least once (three times in this embodiment) by the four wave-wound coil sections 20a to 20d. There is.
- One wave-wound coil portion 20a is arranged along one circumferential side of the stator core 10 by the slot housing portion 21 and the portion 23 so that a current flows toward one circumferential side (for example, the A1 direction) of the stator core 10. , are sequentially wave-wound in stages toward one side in the radial direction (the B1 direction side).
- the wave-wound coil portion 20b connected to the wave-wound coil portion 20a is arranged in the circumferential direction so that the current flows toward the other circumferential side (for example, the A2 direction) opposite to the wave-wound coil portion 20a.
- waves are wound in a stepwise manner toward the other side in the radial direction (B2 direction side).
- the wave-wound coil portion 20c and the wave-wound coil portion 20d are wave-wound so that the current flows toward one side and the other side in the circumferential direction, respectively.
- the first coil portion of the U-phase coil portion 30 in the coil portion 20 is connected.
- a second coil section 32, a third coil section 33, and a fourth coil section 34 respectively. That is, each of the first coil part 31, the second coil part 32, the third coil part 33, and the fourth coil part 34 is arranged in the stator core 10 while turning (changing) the circumferential direction three times. ing.
- the wave-wound coil portions 20a to 20d are connected to each other by either the portion 24 or the portion 25.
- Each of the portions 24 and 25 connects a pair of slot accommodating portions 21 having a common radial position (number of turns) among a plurality of slot accommodating portions 21 accommodated in mutually different slots 11.
- Each of the portions 24 and 25 is wave-wound in a stepwise manner from the other end in the radial direction to the one end along a common circumferential direction by connecting the slot-accommodating portions 21 in pairs. At least one pair of wave-wound coil portions 20a to 20d are connected to each other.
- the coil portion 20 is arranged along one side in the circumferential direction from the other end in the radial direction (for example, in the B2 direction) to one side (for example, in the B1 direction) by the wave-wound coil portions 20a to 20d that are connected to each other.
- the wave winding is performed step by step up to the end of the side), and the circumferential direction is changed from one direction to the other (for example, from the A1 direction side to the A2 direction side) by the portions 24 and 25, and the other side in the circumferential direction is It is wave-wound in order along the side from one end in the radial direction to the other end.
- the portion 24 connects the slot accommodating portions 21 arranged at the outermost (first turn) in the radial direction.
- the portion 25 connects the slot accommodating portions 21 disposed radially innermost (eighth turn) in each of the plurality of slots 11 .
- the four wave-wound coil portions 20a to 20d, one portion 24, and two portions 25 are folded back multiple times (the direction of the winding in the circumferential direction is changed multiple times).
- a single wave-wound conductor (winding) is formed.
- the slot housing portion 21 (white number 1) disposed on the outermost diameter side (first turn) of the #37 slot 11
- a power line 61 is connected to the part).
- a portion 23 extends from #37 to #31 as the coil end portion 22 on the Z2 direction side.
- the portion 23 is placed in the slot housing portion 21 (the portion numbered 2) which is located in the second turn of the #31 slot 11, shifted one step inward from the outermost diameter side. Connected.
- the portion 23 is alternately slotted in the Z1 direction side and the Z2 direction side in the order of the third turn of the slot 11 of #25, the fourth turn of the slot 11 of #19, and the fifth turn of the slot 11 of #13.
- the slot accommodating portion 21 is connected to the accommodating portion 21, and the number of turns is increased inward one by one until the slot accommodating portion 21 (number 8 portion) is the 8th turn of the #43 slot 11.
- a wave-wound coil portion 20a is formed in which the eight slot housing portions 21 and seven portions 23 are connected.
- a portion 25 is provided on the Z1 direction side of the stator core 10 so as to be folded back (to change the direction of the winding in the circumferential direction).
- the wave-wound coil portion 20b extends from the #48 slot 11 where the number 9 portion is provided, to the #42 slot 11 by changing the direction toward the A2 direction side in the circumferential direction. It is formed similarly to the wave-wound coil portion 20a.
- the first coil portion 31 is arranged from the slot housing portion 21 (portion numbered 16) at the first turn of slot 11 #42 to the slot housing portion 21 (portion number 17) at the first turn of slot 11 #1. ), the portion 24 is provided on the Z1 direction side of the stator core 10, so that the wave-wound coil portion 20b is folded back to the wave-wound coil portion 20c. Thereafter, the first coil portion 31 is similarly folded back by the portion 25 from the wave-wound coil portion 20c to the wave-wound coil portion 20d. In this way, one first coil section 31 is formed by the four wave-wound coil sections 20a to 20d folded back three times. Note that the wave-wound coil portion 20d is connected to the neutral wire 62 from the slot housing portion 21 (portion numbered 32) of the first turn of the #6 slot 11.
- the portion connecting the second turn to the third turn, the fourth turn to the fifth turn, and the sixth turn to the seventh turn is arranged on the Z1 direction side.
- the portion 24 that connects the first turns and the portion 25 that connects the eighth turns are all arranged on the Z1 direction side.
- the power line 61 and the neutral line 62 are also connected in the Z1 direction.
- each of the second coil part 32, third coil part 33, and fourth coil part 34 has four wave-wound coil parts 20a to 34, similarly to the first coil part 31.
- 20d is folded back to form a part of the wave-wound coil portion 20 that is folded back multiple times (the direction of the winding wire in the circumferential direction is changed multiple times).
- the portion 23 forming the other of the wave-wound coil portions 20a to 20d that are connected to each other is configured so that the radial position of the slot accommodating portion 21 to be connected is changed stepwise (in a slope shape) parallel to each other.
- the slot housing portions 21 are connected to each other in pairs.
- the number (pitch) of slots 11 spanned by the portion 23 is the same. Specifically, the portion 23 straddles the five slots 11 and connects the slot accommodating portions 21 while shifting one turn to connect the slot accommodating portions 21 to each other. In other words, in each of the plurality of wave-wound coil parts 20a to 20d, the pitch number of the portion 23 is all "6".
- the portion 23 has a common pitch on one side (Z1 direction side) and the other side (Z2 direction side) of the stator core 10.
- parallel means that the radial positions of the slot accommodating portions 21 connected to the portions 23 are parallel to each other when they are arranged along the circumferential direction. That is, this means that the positions of the slot accommodating portions 21 are parallel to each other when the annular stator core 10 is shown cut open as shown in FIGS. 4 to 7.
- each of the portions 24 and 25 there are two types, 5 pitches and 7 pitches.
- a section 24 with a pitch number of 7 is provided between #42 and #1 of the slot 11
- a section 24 with a pitch number of 7 is provided between #43 and #48, and between #7 and #12 of the slot 11.
- a portion 25 having a pitch number of 5 is provided between and.
- the second coil section 32 of FIG. A portion 25 having a pitch number of 7 is provided between and #13.
- the mutually different parts 24 or parts 25 are arranged so as to overlap each other when viewed from the axial direction (Z direction).
- the portion 24 or 25 with a large number of pitches is arranged above the portion 24 or 25 with a small number of pitches (on the Z1 direction side).
- portions 24 and 25 with a pitch number of 7 are arranged so as to cover portions 24 and 25 with a pitch number of 5 on the upper side, respectively.
- one of the plurality of wave-wound coil parts 20a-20d connected to each other for one round trip (one of the wave-wound coil parts 20a-20d connected to each other) is formed.
- the slot accommodating part 21 that forms the other part of one round trip (the other of the wave-wound coil parts 20a to 20d that are connected to each other) is arranged in the slots 11 that are adjacent to each other.
- the slot housing portions 21 forming the coil portion 20 that has been folded back multiple times are arranged alternately in a pair of slots 11 that are adjacent to each other. ing.
- each of the U-phase coil section 30, the V-phase coil section 40, and the W-phase coil section 50 is arranged alternately in a pair of adjacent slots 11 along the radial direction.
- the slot housing portions 21 forming the wave-wound coil portions 20a to 20d are two slots 11 adjacent to each other in the circumferential direction, #1 and #48, # 6 and #7, #12 and #13, #18 and #19, #24 and #25, #30 and #31, #36 and #37, #42 and #43.
- the slot accommodating portions 21 are alternately arranged in different slots 11 between adjacent ones (for one round trip).
- the U-phase second coil section 32, third coil section 33, and fourth coil section 34 in FIGS. 5 to 7 are also similar to the U-phase first coil section 31. This prevents the positional relationship of the rotor 150 with respect to the unillustrated permanent magnets from being biased among each of the U-phase first coil section 31, second coil section 32, third coil section 33, and fourth coil section 34. Can be suppressed.
- the coil portion 20 is formed as a wave-wound conductor wire by connecting a plurality of conductor members 70.
- the plurality of conductor members 70 are connected (joined), so that each of the slot accommodation section 21 and the coil end section 22 (section 23, section 24, and section 25) is formed.
- Each of the plurality of conductor members 70 has an inverted U shape.
- the conductor member 70 includes a pair of slot accommodating portions 21 and a coil end portion 22 that connects the pair of slot accommodating portions 21 on one side (Z1 side) of the stator core 10 in the axial direction.
- the shapes of the coil end portions 22 are different for each of the portions 23, 24, and 25.
- the conductor member 70 is arranged so that the slot accommodation portion 21 is accommodated in each of the slots 11, and then the coil end portion 22 on the Z2 direction side is bent toward the outside in the circumferential direction, and It is joined to the coil end portion 22 of the conductor member 70 on the Z2 direction side by laser joining or the like.
- the coil section 20 is configured using seven types of conductor members 70.
- three types of conductor members 70 constitute the pair of slot housing parts 21 and 23
- two types of conductor members 70 constitute the pair of slot housing parts 21 and 24, and a pair of slot housing parts 70.
- Two types of conductor members 70 forming the housing portion 21 and the portion 25 are used.
- the three types of conductor members 70 constituting the pair of slot accommodating parts 21 and parts 23 are such that, on the Z1 direction side, the part 23 connects the conductor member 70 connecting the second turn to the third turn, and the conductor member 70 connecting the fourth turn, respectively.
- conductor members 70 There are three types of conductor members 70: a conductor member 70 that connects the 5th turn and a conductor member 70 that connects the 6th turn to the 7th turn.
- the two types of conductor members 70 forming the pair of slot accommodating portions 21 and 24 and the two types of conductor members 70 forming the pair of slot accommodating portions 21 and 25 have pitch numbers of 5 and 7, respectively.
- the coil portion 20 is arranged in order from the other end in the radial direction to the end on the one side along one side in the circumferential direction by the wave-wound coil portions 20a to 20d that are connected to each other. It is wave-wound in stages, and the circumferential direction is changed from one side to the other by parts 24 and 25 (second coil end part), and one end of the radial direction is wound along the other side of the circumferential direction. It is wrapped in waves in order from one end to the other end.
- the innermost layer (turn) and the second innermost layer are alternately passed through, and then the third innermost layer and the outermost layer are alternately passed through.
- the slot accommodating portions 21 are connected like a portion connected from the second inner layer to the third inner layer.
- the slot accommodating portions 21 can be connected to each other without providing a portion whose radial position is changed midway. Therefore, the slot accommodating portions 21 can be connected to each other without providing a connecting portion across the other coil portions 20 in the middle of the slot 11 in the radial direction. As a result, the size of the coil portion 20 in the axial direction of the stator core 10 can be reduced.
- the wave-wound coil portions 20a to 20d are configured such that in each of the plurality of slots 11, slot accommodation portions 21 are arranged which are connected in stages from one end in the radial direction to the other end. Therefore, the end portions of the wave-wound coil portions 20a to 20d can be arranged at the innermost or outermost positions in the radial direction. Therefore, when connecting the power line 61 or the neutral line 62 to the coil part 20, the manufacturing process is prevented from becoming more complicated than when connecting to the conductor (conductor member 70) in the middle of the slot 11. be able to.
- the size of the conductor in the axial direction is considered to be large.
- the portion 24 and the portion 25 connect the wave-wound coil portions 20a to 20d at the innermost or outermost radial direction. The degree of freedom in directional arrangement is increased.
- the positions in the radial direction of the slot accommodating parts 21 to be connected are changed in parallel to each other in stages. Because of this arrangement, the shape of the conductor (conductor member 70) constituting one and the other of the wave-wound coil portions 20a to 20d connected to each other can be made the same. Therefore, even when the wave-wound coil parts 20a to 20d that are connected to each other are connected in a folded manner, it is possible to suppress an increase in the number of shapes of the conductor member 70. It is possible to prevent the number of types of conductor members 70 from increasing.
- the direction of the winding in the circumferential direction is determined by the plurality of wave-wound coil parts 20a to 20d, the part 24 (outermost coil end part) and the part 25 (innermost coil end part). Since the wave-wound coil portion 20 is formed by changing the winding direction multiple times, wave winding is performed while changing the winding direction in the circumferential direction multiple times at each of the radially innermost and outermost sides of the slot 11.
- the coil portion 20 can be configured so as to. Therefore, even when the number of slot housing portions 21 accommodated in one slot 11 increases, the coil portion 20 can be configured by folding back multiple times at each of the radially innermost and outermost portions of the slot 11. Therefore, the size of the coil portion 20 in the axial direction of the stator core 10 can be reduced.
- the coil portion 20 can be configured by connecting the slot accommodating portions 21, which are arranged one by one in the radial direction so as to be shifted outwardly or inwardly from each other, in pairs.
- the slot accommodating portions 21 can be densely arranged in each of the plurality of slots 11. Therefore, while efficiently connecting to the plurality of slot accommodating parts 21 arranged in the slot 11, the radial position of the slot accommodating part 21 to be connected is gradually changed in order toward one side in the radial direction.
- the slot accommodating portions 21 can be connected to each other in pairs.
- the slot accommodating portion 21 is arranged in the common slot 11 in both one and the other of the wave-wound coil portions 20a to 20d that are connected to each other, the rotor 150 facing the stator 100 Since the positional relationship of the coil section 20 with respect to the arranged magnets becomes uneven, the current flowing through the wave-wound coil sections 20a to 20d becomes uneven.
- the slot accommodating part 21 forming one of the wave-wound coil parts 20a to 20d connected to each other and the slot accommodating part 21 forming the other By arranging them in slots 11 that are adjacent to each other, it is possible to suppress unevenness in the current flowing through the wave-wound coil portions 20a to 20d.
- the portion 23 (first coil end portion) forming one of the wave-wound coil portions 20a to 20d for one round trip and the portion 23 forming the other are connected to the connecting slot.
- the radial positions of the housing portions 21 are changed in parallel to each other in stages, the present invention is not limited to this. In the present invention, the radial positions of the slot accommodating portions may not be parallel to each other on one side and the other side for one reciprocation.
- the coil portion 20 is formed by four wave-wound coil portions 20a to 20d, but the present invention is not limited to this.
- the coil portion may be configured by two wave-wound coil portions so as to be folded back only once.
- a second coil end part that changes the direction of the winding in the circumferential direction may be arranged at the radially inner end as one radial side, or a second coil end part for changing the direction of the winding in the circumferential direction may be arranged at the radially outer end.
- a second coil end portion may be arranged to change the direction of the winding in the coil. That is, the second coil end portion may be either the innermost coil end portion or the outermost coil end portion.
- one side and the other side in the circumferential direction may be oriented in opposite directions to those of the stator in the above embodiment.
- the portions 23 are arranged one by one in the radial direction of the slot accommodation portions 21 arranged in different slots 11 so as to be shifted outward or inward from each other.
- the first coil end portion may connect slot accommodating portions that are arranged offset by two or more slot accommodating portions. That is, slot housing portions that are shifted by two or more turns may be connected to each other.
- the slot accommodating portion 21 forming one of the wave-wound coil portions 20a to 20d for one round trip and the slot accommodating portion 21 forming the other are located in the slots 11 adjacent to each other.
- the slot accommodating portion forming one of the wave-wound coil portions for one round trip and the slot accommodating portion forming the other side of the wave-wound coil portion for one round trip are arranged in a common slot. Good too.
- the slot accommodating portion forming one side of the wave-wound coil portion for one round trip and the slot accommodating portion forming the other side of the wave-wound coil portion for one round trip may be arranged in slots spaced apart from each other. good.
- the coil end portion may be formed by arranging the rod-shaped conductor member in the slot as the slot-accommodating portion and then joining a conductor member separate from the rod-shaped conductor member.
- the coil portion may be formed by combining an inverted U-shaped conductor member and a U-shaped conductor member from one side and the other side in the axial direction of the stator core.
- the coil portion may be formed of a continuous wave-wound conductor.
- each of the U-phase coil section 30, the V-phase coil section 40, and the W-phase coil section 50 constitutes four parallel coils, but the present invention is not limited to this.
- each of the U-phase coil section, V-phase coil section, and W-phase coil section may not have a parallel configuration, or may have a two-parallel configuration.
- the stator core 10 is provided with 48 slots 11, and each slot 11 has eight slot accommodation portions 21 accommodated in a line in the radial direction.
- the present invention is not limited to this.
- the number of slots in the stator core may be other than 48.
- the number of slot accommodation portions accommodated in one slot may also be other than eight.
- This embodiment includes at least the following configurations.
- the stator (100) includes a stator core (10) including a plurality of slots (11) extending in the axial direction, a coil part (20) arranged in each of the plurality of slots (11), and in which a conducting wire is wave-wound.
- the coil portion (20) includes a plurality of slot accommodating portions (21) arranged in a line along the radial direction of the stator core (10) in each of the plurality of slots (11), and a plurality of slot accommodating portions (21) arranged in the plurality of slots (11), and different slots.
- a second coil end portion (24, 25), the first coil end portion (23) has a slot accommodating portion (21) to which the first coil end portion (23) is connected, whose radial position is from the other end in the radial direction toward one side in the radial direction.
- At least a pair of wave-wound coil portions (20a, 20b, 20c, 20d) are connected to each other, and the coil portion (20) is formed in a circumferential direction by the wave-wound coil portions (20a, 20b, 20c, 20d) connected to each other.
- Wave winding is performed in a stepwise manner along one side from the other end in the radial direction to the one end, and the direction in the circumferential direction is changed from one side to the other by the second coil end portion (24, 25). Then, it is wave-wound in order from one end in the radial direction to the other end in the radial direction along the other side in the circumferential direction.
- the slot housing portions (21) are connected from the second inner layer to the third inner layer.
- the slot accommodating portions (21) can be connected to each other without providing a portion that changes the radial position of the slot accommodating portions (21) in the middle. Therefore, the slot accommodating portions (21) can be connected to each other without providing a connecting portion that straddles another coil portion (20) in the middle of the slot (11) in the radial direction. As a result, the size of the coil portion (20) in the axial direction of the stator core (10) can be reduced.
- the first coil end portion (23) forming one of the wave-wound coil portions (20a, 20b, 20c, 20d) that are connected to each other and the first coil end portion (23) forming the other are connected to a connecting slot.
- the slot accommodating parts (21) are connected to each other in pairs so that the radial positions of the accommodating parts (21) are changed stepwise in parallel to each other.
- the positions of the slot accommodation portions (21) to be connected in the radial direction are parallel to each other in stages. Since the conductors are arranged so as to be changed in a similar manner, the shapes of the conductors forming one and the other of the wave-wound coil parts (20a, 20b, 20c, 20d) that are connected to each other can be made the same. . Therefore, even when the wave-wound coil parts (20a, 20b, 20c, 20d) that are connected to each other are connected in a folded manner, it is possible to suppress an increase in the number of shapes of the conductor members. 20), it is possible to suppress an increase in the number of types of conductor members for forming.
- the second coil end portions (24, 25) are outermost coil end portions (24) that connect the slot housing portions (21) arranged at the outermost radial direction in each of the plurality of slots (11).
- an innermost coil end portion (25) that connects the slot accommodation portions (21) disposed at the innermost radial direction, and the wave-wound coil portions (20a, 20b, 20c, 20d) include: A plurality of wave-wound coil parts (20a, 20b, 20c, 20d), an outermost coil end part (24) and an innermost coil end part (25) are provided, and the direction of the winding in the circumferential direction is is changed multiple times to form a wave-wound coil portion (20).
- the winding in the circumferential direction is controlled by the plurality of wave-wound coil parts (20a, 20b, 20c, 20d), the outermost coil end part (24), and the innermost coil end part (25). Since the wave-wound coil portion (20) is formed by changing the direction multiple times, the direction of the winding in the circumferential direction is changed multiple times at each of the radially innermost and outermost portions of the slot (11).
- the coil portion (20) can be configured to be wave-wound while changing. Therefore, even when the number of slot accommodation portions (21) accommodated in one slot (11) increases, the coils can be folded back multiple times at each of the radially innermost and outermost portions of the slot (11). (20), the size of the coil portion (20) in the axial direction of the stator core (10) can be reduced.
- the first coil end portions (23) are slot accommodating portions (21) disposed in different slots (11) that are radially shifted one by one from each other outward or inward. Connect the portions (21) one pair at a time.
- the coil portion (20) can be configured by connecting the slot housing portions (21), which are arranged one by one in the radial direction and shifted outward or inward from each other, in pairs. Therefore, the slot accommodating portions (21) can be densely arranged in each of the plurality of slots (11). Therefore, while efficiently connecting to the plurality of slot accommodating parts (21) arranged in the slot (11), the radial position of the slot accommodating part (21) to be connected is directed toward one side in the radial direction.
- the slot accommodating portions (21) can be connected to each other in pairs so that the slot accommodating portions (21) are changed in a stepwise manner.
- the slot accommodating part (21) is arranged in the common slot (11). flows into the wave-wound coil portions (20a, 20b, 20c, 20d) because the positional relationship of the coil portion (20) with respect to the magnets disposed on the rotor (150) facing the stator (100) is biased. Unbalanced current occurs.
- a slot accommodating part (21) forming one of the wave-wound coil parts (20a, 20b, 20c, 20d) connected to each other and a slot accommodating part (21) forming the other 21) in the slots (11) adjacent to each other it is possible to suppress the occurrence of bias in the current flowing through the wave-wound coil portions (20a, 20b, 20c, 20d).
- Stator core 11 Slot 20 Coil portion 20a, 20b, 20c, 20d Wave-wound coil portion 21 Slot housing portion 23 Portion (first coil end portion) 24 part (second coil end part, outermost coil end part) 25 part (second coil end part, innermost coil end part) 100 stator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
互いに接続される波巻きコイル部の一方を形成するスロット収容部分と他方を形成するスロット収容部分とが、互いに隣り合うスロットに各々配置されている構成において、好ましくは、複数の波巻きコイル部と複数の第2コイルエンド部分とによって、周方向における巻線の向きが複数回変更されて波巻きされたコイル部が形成されており、コイル部を形成するスロット収容部分は、互いに隣り合う一対のスロットに交互に配置されている。
上記一の局面によるステータにおいて、好ましくは、コイル部は、三相の交流電流の各々が流されるU相コイル部、V相コイル部、および、W相コイル部を含み、U相コイル部、V相コイル部、および、W相コイル部の各々は、スロット収容部分の径方向の位置が径方向の一方側に向かって順に段階的に変更されるようにスロット収容部分同士が一対ずつ第1コイルエンド部分により接続されることによって、第1コイルエンド部分とスロット収容部分とにより形成された波巻きコイル部を有するとともに、互いに接続される波巻きコイル部の一方と他方とが第2コイルエンド部分によって周方向における巻線の向きが変更されるように接続されている。
ステータ100は、ステータコア10を備えている。ステータコア10は、ロータ150と半径方向に対向するように配置されている。また、ステータコア10には、複数(たとえば、48個)のスロット11が設けられている。また、隣接するスロット11の間には、ティース12が設けられている。ステータコア10は、たとえば、複数の電磁鋼板が回転中心軸方向(Z1方向およびZ2方向)に積層されており、磁束を通過可能に構成されている。また、ステータコア10は、軸方向の一方側(Z1方向側)と他方側(Z2方向側)との各々に、端面10aを有する。また、ステータ100は、コイル部20を備えている。
図10に示すように、コイル部20は、複数の導体部材70を接続することによって波巻きされた導線として形成されている。具体的には、コイル部20では、複数の導体部材70が接続(接合)されることによって、スロット収容部分21と、コイルエンド部分22(部分23、部分24、および、部分25)との各々が形成される。複数の導体部材70の各々は、逆U字形状を有している。導体部材70は、一対のスロット収容部分21と、一対のスロット収容部分21をステータコア10の軸方向の一方側(Z1側)において接続するコイルエンド部分22とを含む。導体部材70において、部分23、部分24、および、部分25の各々ごとにコイルエンド部分22の形状は異なる。ステータ100では、導体部材70は、スロット11の各々にスロット収容部分21が収容されるように配置された後に、Z2方向側のコイルエンド部分22が周方向の外側に向かって折り曲げられるとともに、異なる導体部材70のZ2方向側のコイルエンド部分22とレーザ接合などにより接合される。
本実施形態では、以下のような効果を得ることができる。
なお、今回開示された実施形態は、すべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した実施形態の説明ではなく請求の範囲によって示され、さらに請求の範囲と均等の意味および範囲内でのすべての変更(変形例)が含まれる。
本実施形態は、少なくとも以下の構成を備える。
11 スロット
20 コイル部
20a、20b、20c、20d 波巻きコイル部
21 スロット収容部分
23 部分(第1コイルエンド部分)
24 部分(第2コイルエンド部分、最外コイルエンド部分)
25 部分(第2コイルエンド部分、最内コイルエンド部分)
100 ステータ
Claims (5)
- 軸方向に延びる複数のスロットを含むステータコアと、
前記複数のスロットの各々に配置され、導線が波巻きされているコイル部と、を備え、
前記コイル部は、
前記複数のスロットの各々において、前記ステータコアの径方向に沿って並んだ状態で収容される複数のスロット収容部分と、
互いに異なる前記スロットに収容されている前記複数のスロット収容部分のうちの、前記径方向の位置が互いに異なる前記スロット収容部分同士を一対ずつ接続する第1コイルエンド部分と、
互いに異なる前記スロットに収容されている前記複数のスロット収容部分のうちの、前記径方向の位置が互いに共通の前記スロット収容部分同士を一対ずつ接続する第2コイルエンド部分と、を含み、
前記第1コイルエンド部分は、接続する前記スロット収容部分の前記径方向の位置が、前記径方向の一方側に向かって前記径方向の他方側の端から一方側の端まで順に段階的に変更されるように前記スロット収容部分同士を一対ずつ接続することによって、前記スロット収容部分と共に前記ステータコアに周方向に沿って波巻きされた波巻きコイル部を形成し、
前記第2コイルエンド部分は、前記スロット収容部分同士を一対ずつ接続することによって、順に段階的に波巻きされた少なくとも一対の前記波巻きコイル部同士を接続し、
前記コイル部は、互いに接続される前記波巻きコイル部によって、前記周方向の一方側に沿って前記径方向の他方側の端から一方側の端まで順に段階的に波巻きされるとともに、前記第2コイルエンド部分により前記周方向の向きを一方から他方へと変更して、前記周方向の他方側に沿って前記径方向の一方側の端から他方側の端まで順に波巻きされている、ステータ。 - 互いに接続される前記波巻きコイル部の一方を形成する前記第1コイルエンド部分と、他方を形成する前記第1コイルエンド部分とは、接続する前記スロット収容部分の前記径方向の位置が互いに平行に段階的に変更されるように、前記スロット収容部分同士を一対ずつ接続する、請求項1に記載のステータ。
- 前記第2コイルエンド部分は、前記複数のスロットの各々において前記径方向の最も外側に配置されている前記スロット収容部分同士を接続する最外コイルエンド部分と、前記径方向の最も内側に配置されている前記スロット収容部分同士を接続する最内コイルエンド部分との両方を含み、
前記波巻きコイル部は、複数設けられており、
複数の前記波巻きコイル部と、前記最外コイルエンド部分および前記最内コイルエンド部分とによって、前記周方向における巻線の向きが複数回変更されて波巻きされた前記コイル部が形成されている、請求項1に記載のステータ。 - 前記第1コイルエンド部分は、互いに異なる前記スロットに配置されている前記スロット収容部分のうちの、前記径方向において一つずつ外側または内側に互いにずれて配置されている前記スロット収容部分同士を一対ずつ接続する、請求項1に記載のステータ。
- 互いに接続される前記波巻きコイル部の一方を形成する前記スロット収容部分と、他方を形成する前記スロット収容部分とは、互いに隣り合う前記スロットに各々配置されている、請求項1に記載のステータ。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380052061.XA CN119563271A (zh) | 2022-08-30 | 2023-08-17 | 定子 |
| EP23860076.1A EP4507170A4 (en) | 2022-08-30 | 2023-08-17 | STATOR |
| JP2024544127A JP7790583B2 (ja) | 2022-08-30 | 2023-08-17 | ステータ |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022-137339 | 2022-08-30 | ||
| JP2022137339 | 2022-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024048313A1 true WO2024048313A1 (ja) | 2024-03-07 |
Family
ID=90099592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2023/029758 Ceased WO2024048313A1 (ja) | 2022-08-30 | 2023-08-17 | ステータ |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4507170A4 (ja) |
| JP (1) | JP7790583B2 (ja) |
| CN (1) | CN119563271A (ja) |
| WO (1) | WO2024048313A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015023672A (ja) * | 2013-07-18 | 2015-02-02 | 本田技研工業株式会社 | 回転電機 |
| JP2020127336A (ja) * | 2019-02-06 | 2020-08-20 | 本田技研工業株式会社 | 波巻コイルユニット、ステータ及びコイル挿入方法 |
| WO2021019843A1 (ja) * | 2019-07-26 | 2021-02-04 | 株式会社明電舎 | 回転機の巻線構造 |
| WO2022071029A1 (ja) | 2020-09-30 | 2022-04-07 | 日本電産株式会社 | ステータおよびモータ |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586456B (zh) * | 2017-09-29 | 2021-06-18 | 比亚迪股份有限公司 | 电机、定子组件及其线圈绕线方法 |
| CN114583863B (zh) * | 2021-12-31 | 2024-05-10 | 华为数字能源技术有限公司 | 定子、扁线电机、动力总成和车辆 |
-
2023
- 2023-08-17 CN CN202380052061.XA patent/CN119563271A/zh active Pending
- 2023-08-17 WO PCT/JP2023/029758 patent/WO2024048313A1/ja not_active Ceased
- 2023-08-17 JP JP2024544127A patent/JP7790583B2/ja active Active
- 2023-08-17 EP EP23860076.1A patent/EP4507170A4/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015023672A (ja) * | 2013-07-18 | 2015-02-02 | 本田技研工業株式会社 | 回転電機 |
| JP2020127336A (ja) * | 2019-02-06 | 2020-08-20 | 本田技研工業株式会社 | 波巻コイルユニット、ステータ及びコイル挿入方法 |
| WO2021019843A1 (ja) * | 2019-07-26 | 2021-02-04 | 株式会社明電舎 | 回転機の巻線構造 |
| WO2022071029A1 (ja) | 2020-09-30 | 2022-04-07 | 日本電産株式会社 | ステータおよびモータ |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4507170A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119563271A (zh) | 2025-03-04 |
| EP4507170A4 (en) | 2025-08-27 |
| JPWO2024048313A1 (ja) | 2024-03-07 |
| JP7790583B2 (ja) | 2025-12-23 |
| EP4507170A1 (en) | 2025-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6954374B2 (ja) | ステータ | |
| JP5438804B2 (ja) | 回転電機 | |
| JP4146379B2 (ja) | 回転電機の固定子 | |
| CN109451775A (zh) | 旋转电机的定子 | |
| JP7655756B2 (ja) | モータ | |
| WO2013145459A1 (ja) | コイル | |
| JP2011193600A (ja) | 回転電機用電機子 | |
| JP2014007938A (ja) | 回転電機及び回転電機の製造方法 | |
| JP7639462B2 (ja) | モータ | |
| JP2022136858A (ja) | モータ | |
| JP4567133B2 (ja) | 回転電機およびその製造方法 | |
| WO2022071029A1 (ja) | ステータおよびモータ | |
| JP2017184394A (ja) | 回転電機用ステータ | |
| TWI511421B (zh) | 旋轉電動機 | |
| JP2022043915A5 (ja) | ||
| JP2011182524A (ja) | 回転電機用電機子 | |
| CN115133690A (zh) | 定子和马达 | |
| WO2024084934A1 (ja) | 回転電機用ステータ | |
| WO2024048313A1 (ja) | ステータ | |
| JP6906741B2 (ja) | 回転電機 | |
| WO2023163089A1 (ja) | ステータ、およびモータ | |
| JP6835240B2 (ja) | コイル | |
| WO2021153552A1 (ja) | 電機子 | |
| WO2017169933A1 (ja) | ステータ | |
| JP7806652B2 (ja) | 回転電機用ステータ |
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: 23860076 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024544127 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023860076 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2023860076 Country of ref document: EP Effective date: 20241107 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202380052061.X Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: 202380052061.X Country of ref document: CN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |