Method for manufacturing rotor
AssigneeToyota Boshoku Kabushiki Kaisha
InventorsMakoto Kitahara, Masaki Sugiyama
Life of this patent
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Abstract
A method for manufacturing a rotor includes, with a magnet accommodated in a magnet housing hole of a rotor core, causing a first die to contact a first end face of the rotor core and causing a second die to contact a second end face of the rotor core. The method also includes injecting the thermoplastic into the magnet housing hole through a passage of the second die in a state in which the first die and the second die are respectively in contact with the first end face and the second end face and the first die is heated.
Claims8
A method for manufacturing a rotor, the rotor including a rotor core that includes a magnet housing hole and a magnet that is accommodated in the magnet housing hole and fixed to the rotor core with a thermoplastic, the rotor core having a first end face and a second end face, which is located on a side opposite to the first end face, the magnet housing hole opening in the first end face and the second end face, the method comprising:
- with the magnet accommodated in the magnet housing hole, causing a first die to contact the first end face and causing a second die to contact the second end face, the second die including a passage through which the thermoplastic flows;
- and
- injecting the thermoplastic into the magnet housing hole through the passage in a state in which the first die and the second die are respectively in contact with the first end face and the second end face and the first die is heated,
- wherein the first die is heated by energizing a first heater provided in the first die, and
- the first die is in direct contact with the first end face during the injecting of the thermoplastic into the magnet housing hole.
A method for manufacturing a rotor, the rotor including a rotor core that includes a magnet housing hole and a magnet that is accommodated in the magnet housing hole and fixed to the rotor core with a thermoplastic, the rotor core having a first end face and a second end face, which is located on a side opposite to the first end face, the magnet housing hole opening in the first end face and the second end face, the method comprising:
- with the magnet accommodated in the magnet housing hole, causing a first die to contact the first end face and causing a second die to contact the second end face, the second die including a passage through which the thermoplastic flows;
- and
- injecting the thermoplastic into the magnet housing hole through the passage in a state in which the first die and the second die are respectively in contact with the first end face and the second end face and the first die is heated,
- wherein the injecting the thermoplastic includes injecting the thermoplastic in a state in which the second die is heated.
Dependencies are inferred from the claim text.