Toyota jidosha kabushiki kaisha (20240178730). HEATING DEVICE FOR ROTOR CORE simplified abstract

HEATING DEVICE FOR ROTOR CORE

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Hiroshi Kikuchi of Toyota-shi (JP)

Eiji Shimizu of Nisshin-shi (JP)

Kenta Chimata of Toyota-shi (JP)

HEATING DEVICE FOR ROTOR CORE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240178730 titled 'HEATING DEVICE FOR ROTOR CORE

Simplified Explanation

The heating device for induction-heating a rotor core of an electric motor includes an induction heating coil, an alternating current power supply, and a magnetic flux shielding plate. The magnetic flux shielding plate is designed to optimize the induction heating process by controlling the magnetic flux distribution within the rotor core.

• Induction heating coil disposed in central hole of rotor core
• Alternating current power supply for supplying current to the coil
• First magnetic flux shielding plate on first end face of rotor core
• Plate has inner and outer regions, with inner region protruding more towards end face
• Clearance formed between outer region and end face when inner region abuts end face

Potential Applications

This technology can be applied in the manufacturing and maintenance of electric motors, where efficient and controlled heating of rotor cores is required.

Problems Solved

1. Ensures uniform and efficient heating of rotor core 2. Controls magnetic flux distribution for optimal induction heating process

Benefits

1. Improved heating efficiency 2. Enhanced control over magnetic flux distribution 3. Increased reliability and performance of electric motors

Potential Commercial Applications

Optimized induction heating devices can be used in industries such as automotive, aerospace, and industrial manufacturing for the production and maintenance of electric motors.

Possible Prior Art

Prior art may include similar devices used for induction heating of rotor cores in electric motors, but with less efficient magnetic flux control mechanisms.

How does the design of the magnetic flux shielding plate impact the overall efficiency of the induction heating process?

The design of the magnetic flux shielding plate plays a crucial role in controlling the magnetic flux distribution within the rotor core, which directly affects the efficiency of the induction heating process. By optimizing the design of the plate, the heating device can achieve better performance and reliability.

What are the potential challenges in implementing this technology in different types of electric motors?

Implementing this technology in various types of electric motors may pose challenges related to the size and shape of the rotor cores, as well as the specific heating requirements of different motor designs. Adapting the heating device to suit different motor configurations while maintaining optimal performance could be a key challenge in widespread adoption of this technology.

Original Abstract Submitted

a heating device for induction-heating a rotor core of an electric motor includes an induction heating coil disposed in a central hole of the rotor core, an alternating current power supply for supplying an alternating current to the induction heating coil, and a first magnetic flux shielding plate disposed on a first end face of the rotor core and having a first opposing surface opposed to the first end face of the rotor core. the first opposing surface of the first magnetic flux shielding plate has a first inner region and a first outer region located radially outward of the first inner region. the first inner region protrudes more toward the first end face than the first outer region. clearance is formed between the first outer region and the first end face of the rotor core when the first inner region abuts the first end face of the rotor core.