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CN-116191794-B - Stator assembling device and stator assembling method

CN116191794BCN 116191794 BCN116191794 BCN 116191794BCN-116191794-B

Abstract

Provided is a stator assembly device which can be inserted without biting an insulating member fitted to a slot when a coil is inserted into the slot from the inside of a stator core. The stator assembly device includes a first guide member inserted into an inside of an insulating member of the slot, a second guide member inserted into the inside of the insulating member and positioned radially outward of the inside of the slot than the first guide member, and a control means for controlling movement of the first and second guide members. The first guide member is provided so as to be positioned at the front side in the moving direction of the coil that is moved by the pressing means, and is pushed by the coil to be movable radially outward in the slot. After the first guide member moves radially outward in the slot until abutting or approaching the second guide member disposed on the inner diameter side, the plurality of second guide members are moved radially outward by the pressing means as the coil moves, and the plurality of second guide members are moved sequentially outward in the center axis direction of the stator core from the side close to the first guide member and are retracted from the slot.

Inventors

  • Norihiko Hikima
  • YASUTO OHASHI

Assignees

  • 本田技研工业株式会社

Dates

Publication Date
20260505
Application Date
20221124
Priority Date
20211129

Claims (14)

  1. 1. A stator assembly apparatus for assembling a stator by inserting a coil into a slot of a stator core to which an insulating member is attached from an inner side of the stator core, the stator assembly apparatus comprising: A plurality of coil pushing units which are arranged along the circumferential direction of the coil on the inner side of the coil in the radial direction and can perform diameter reduction and expansion, and push the coil towards the outer side in the radial direction through the diameter expansion so as to enable the coil to move to the inner side of the insulating part in the slot; a first guide member provided at least one of the slots and movable in a direction of a central axis of the stator core, the first guide member being inserted into the slot by moving toward the stator core; A second guide member provided in plural with respect to one of the slots and movable in a direction of a central axis of the stator core, the second guide member being inserted into the insulating member at a position radially outside the slot with respect to the first guide member by being moved toward the stator core, A control unit for controlling movement of the first guide member and the second guide member in a direction along a central axis of the stator core, The first guide member is provided so as to be positioned in front of the coil moving direction in which the plurality of coil pushing units move in a state of being inserted into the slot, and is pushed by the coil to be movable radially outward in the slot, The control unit controls the first guide member to move radially outward in the slot until the first guide member comes into contact with or approaches the second guide member arranged on the inner diameter side among the plurality of second guide members, and then moves the plurality of second guide members radially outward by the plurality of coil pressing units to sequentially move the plurality of second guide members outward in the center axis direction of the stator core from a side close to the first guide member and retract from the slot.
  2. 2. A stator assembly apparatus for assembling a stator by inserting a coil into a slot of a stator core to which an insulating member is attached from an inner side of the stator core, the stator assembly apparatus comprising: A plurality of coil pushing units which are arranged along the circumferential direction of the coil on the inner side of the coil in the radial direction and can perform diameter reduction and expansion, and push the coil towards the outer side in the radial direction through the diameter expansion so as to enable the coil to move to the inner side of the insulating part in the slot; a first guide member provided at least one of the slots and movable in a direction of a central axis of the stator core, the first guide member being inserted into the slot by moving toward the stator core; A second guide member provided in plural with respect to one of the slots and movable in a direction of a central axis of the stator core, the second guide member being inserted into the insulating member at a position radially outside the slot with respect to the first guide member by being moved toward the stator core, A control unit for controlling movement of the first guide member and the second guide member in a direction along a central axis of the stator core, The first guide member is provided so as to be positioned in front of the coil moving direction in which the plurality of coil pushing units move in a state of being inserted into the slot, and is pushed by the coil to be movable radially outward in the slot, The control unit controls the first guide member to move radially outward in the slot, first moves the first guide member to the outside in the central axis direction of the stator core to retract from the slot after the first guide member comes into contact with or approaches the second guide member arranged on the inner diameter side among the plurality of second guide members, and then sequentially moves the plurality of second guide members from the inner diameter side to the outside in the central axis direction of the stator core to retract from the slot as the coil moves radially outward by the plurality of coil pressing units.
  3. 3. The stator assembly device according to claim 1 or 2, having an elastic member that presses the first guide member toward a radially inner side of the stator core to the coil.
  4. 4. The stator assembly device according to claim 1 or 2, wherein the first guide member is configured such that at least a part of the first guide member is caught in an opening end of the insulating member in the slot in a state of being inserted into the slot before the coil is inserted.
  5. 5. The stator assembly device according to claim 1 or 2, wherein the first guide member and the second guide member are disposed on both sides of the stator core in a face-to-face manner, respectively, and are disposed with their tips facing each other in the slot when inserted into the slot from both outer sides of the stator core in the central axis direction.
  6. 6. The stator assembly device according to claim 1 or 2, wherein longitudinal widths of the first guide member and the second guide member along a radial direction of the stator core are substantially the same width, respectively.
  7. 7. The stator assembly device according to claim 1 or 2, wherein a width of the first guide member and the second guide member in a lateral direction along a circumferential direction of the stator core is equal to or greater than a width of the coil in the circumferential direction of the stator core.
  8. 8. A stator assembly method for assembling a stator by inserting a coil into a slot of a stator core, the stator core being assembled with an insulating member, from the inside of the stator core, the stator assembly method comprising: Inserting at least one first guide member into one of the slots so as to be disposed inside the insulating member in the slot from the outside in the central axis direction of the stator core before inserting the coil into the slot, and inserting a plurality of second guide members into one of the slots so as to be disposed inside the insulating member and radially outside the slot from the first guide member; the coil is moved toward the slot and is brought into contact with the first guide member, and the first guide member is moved radially outward in the slot in accordance with the movement of the coil, And a step of moving the plurality of second guide members outward in the radial direction from a side close to the first guide member toward the center axis direction of the stator core in order to retract from the slot as the coil moves outward in the radial direction after the first guide member moves outward in the radial direction until the first guide member comes into contact with or approaches the second guide member arranged on the inner diameter side among the plurality of second guide members.
  9. 9. A stator assembly method for assembling a stator by inserting a coil into a slot of a stator core, the stator core being assembled with an insulating member, from the inside of the stator core, the stator assembly method comprising: Inserting at least one first guide member into one of the slots so as to be disposed inside the insulating member in the slot from the outside in the central axis direction of the stator core before inserting the coil into the slot, and inserting a plurality of second guide members into one of the slots so as to be disposed inside the insulating member and radially outside the slot from the first guide member; the coil is moved toward the slot and is brought into contact with the first guide member, and the first guide member is moved radially outward in the slot in accordance with the movement of the coil, And a step of moving the first guide member radially outward in the slot to come into contact with or approach the second guide member arranged on the inner diameter side among the plurality of second guide members, first moving the first guide member radially outward in the center axis direction of the stator core to retract from the slot, and then sequentially moving the plurality of second guide members radially outward in the center axis direction of the stator core from the inner diameter side to retract from the slot as the coil moves radially outward.
  10. 10. The stator assembly method according to claim 8 or 9, wherein the first guide member presses the coil toward the radial inside of the stator core while being pushed by the coil to move.
  11. 11. The stator assembly method according to claim 8 or 9, wherein the step of inserting the first guide member and the second guide member into the slot is a step of inserting the first guide member into the slot so that at least a part of the first guide member is caught in an opening end of the insulating member in the slot.
  12. 12. The stator assembly method according to claim 8 or 9, wherein the first guide member and the second guide member are disposed on opposite sides of the stator core in a center axis direction thereof, The step of inserting the first guide member and the second guide member into the slot is a step of inserting the first guide member and the second guide member into the slot from both outer sides in the central axis direction of the stator core, respectively, and disposing the first guide member and the second guide member with their distal ends facing each other in the slot.
  13. 13. The stator assembly method according to claim 8 or 9, wherein longitudinal widths of the first guide member and the second guide member along a radial direction of the stator core are substantially the same width, respectively.
  14. 14. The stator assembly method according to claim 8 or 9, wherein a width of the first guide member and the second guide member in a lateral direction along a circumferential direction of the stator core is equal to or greater than a width of the coil in the circumferential direction of the stator core.

Description

Stator assembling device and stator assembling method Technical Field The present invention relates to a stator assembly device and a stator assembly method. Background Conventionally, as a technique for inserting a coil into a slot of a stator core to which an insulating member is attached from the inside of the stator core, a technique described in patent literature 1 is known. In the technique described in patent document 1, two guide jigs are inserted from the outside in the central axis direction of the stator core into the slot of the stator core before the coil is inserted while the insulating member is assembled, and the insulating member is opened. In this state, the coil is moved in the slot while being brought into contact with one of the guide jigs, and after the guide members are brought into contact with each other, the two guide jigs are retracted from the slot. [ Prior Art literature ] (Patent literature) Patent document 1 Japanese patent No. 6733823 Disclosure of Invention [ Problem to be solved by the invention ] However, in the technique described in patent document 1, since the coil moves further in the slot after the guide jig is retracted from the slot, the coil contacts the insulating member when the coil moves. When the coil is in contact with the insulating member, the insulating member may be caught between the coil and the slot, and the insulating member may be twisted or bent as the coil moves. The invention aims to provide a stator assembly device and a stator assembly method, which can insert coils from the inner side of a stator core to a slot without biting an insulating component assembled in the slot. [ Means of solving the problems ] (1) The stator assembly device (for example, the stator assembly device 1) of the present invention is configured to assemble a stator (for example, the stator 200) by inserting a coil (for example, a strip coil 100) into a slot (for example, a slot 22) of a stator core (for example, the stator core 2) from the inside of the stator core (for example, the stator core 2) to which an insulating member (for example, an insulating sheet 24) is attached, the stator assembly device including a pressing means (for example, a coil pressing portion 51) that presses the coil radially outward so that the coil moves to the inside of the insulating member in the slot, a first guide member (for example, a leading guide member 61) that is provided at least one with respect to one of the slots and is provided so as to be movable in the direction of the central axis of the stator core, a second guide member (for example, a reinforcing member 62a first guide member 62a, a second guide member 62b, a third guide member 62 b) that is provided so as to be movable in the direction of the inner side of the slot than the first guide member and a reinforcing member 62b that is provided in the direction of the slot, and a plurality of the first guide member is provided so as to be movable in the direction of the central axis of the stator core than the first guide member is provided in the direction of the slot, the first guide member is provided so as to be positioned in front of the moving direction of the coil moved by the pressing means in a state of being inserted into the slot, and is pushed by the coil to be movable radially outward in the slot, and the control means controls the first guide member so as to move radially outward in the slot until the first guide member abuts or approaches the second guide member arranged on the inner diameter side among the plurality of second guide members, and then moves the plurality of second guide members sequentially outward in the central axis direction of the stator core from a side close to the first guide member so as to retract from the slot. (2) The stator assembly device (for example, the stator assembly device 1) of the present invention is configured to assemble a stator (for example, the stator 200) by inserting a coil (for example, a strip coil 100) into a slot (for example, a slot 22) of a stator core (for example, the stator core 2) from the inside of the stator core (for example, the stator core 2) to which an insulating member (for example, an insulating sheet 24) is attached, the stator assembly device including a pressing means (for example, a coil pressing portion 51) that presses the coil radially outward so that the coil moves to the inside of the insulating member in the slot, a first guide member (for example, a leading guide member 61) that is provided at least one with respect to one of the slots and is provided so as to be movable in the direction of the central axis of the stator core, a second guide member (for example, a reinforcing member 62a first guide member 62a, a second guide member 62b, a third guide member 62 b) that is provided so as to be movable in the direction of the inner side of the slot than the first guide member and a reinforcing member 62b that is provided in the direction of th