Announced details
Drive motors for electric vehicles
SPM rotor: rotational speed increased to at least 1.5 times the level of the previous product
SPM rotor: approximately 50% higher output than the previous product
The overall motor can be reduced in volume by approximately 50% under conditions equivalent to the same output
Joint development of rotors for drive motors. Daido Steel Co.,Ltd. developed and supplied heavy-rare-earth-free magnets, while the NHK Spring Group provided CFRP assembly and spring design technologies.
Head office: Nagoya, Aichi Prefecture; President: Shimizu Tetsuya (清水哲也). Other details: Not disclosed.
In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.
| Item | Details |
|---|---|
| Names of Products / Services Covered | SPM rotor, Spring-fixed IPM rotor |
| Counterparty | Daido Steel Co.,Ltd. |
| Counterparty overview | Head office: Nagoya, Aichi Prefecture; President: Shimizu Tetsuya (清水哲也). Other details: Not disclosed. |
| Relationship with the Company | Joint development of rotors for drive motors. Daido Steel Co.,Ltd. developed and supplied heavy-rare-earth-free magnets, while the NHK Spring Group provided CFRP assembly and spring design technologies. |
| Applicable area | Drive motors for electric vehicles |
| Quantitative Effects | SPM rotor: rotational speed increased to at least 1.5 times the level of the previous product, SPM rotor: approximately 50% higher output than the previous product, The overall motor can be reduced in volume by approximately 50% under conditions equivalent to the same output |
Items this document does not state (12)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.The products combine Daido Steel Co.,Ltd.'s heavy-rare-earth-free magnets with the NHK Spring Group's CFRP assembly and spring design technologies. The SPM rotor uses CFRP to firmly secure the magnets, while the spring-fixed IPM rotor uses leaf springs to secure them.