Toyota jidosha kabushiki kaisha (20240162773). ELECTRIC MOTOR simplified abstract

ELECTRIC MOTOR

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Kei Ohta of Toyota-shi (JP)

Hideaki Miyazono of Kasugai-shi (JP)

Junya Kobayashi of Ama-shi (JP)

Junichi Deguchi of Toyota-shi (JP)

Hironori Asaoka of Okazaki-shi (JP)

Sho Okazaki of Toyota-shi (JP)

ELECTRIC MOTOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240162773 titled 'ELECTRIC MOTOR

Simplified Explanation

The electric motor described in the abstract consists of a rotor core fixed to a shaft, a stator with coil ends at both ends, and first and second refrigerant passages. The first refrigerant passage is located in the shaft outside the rotor core in the axial direction, while the second refrigerant passage extends inside the rotor core. The first outlet of the first refrigerant passage is on the shaft, directing refrigerant towards one of the coil ends to cool them. The rotor core is cooled by the refrigerant in the second passage, while the coil ends are cooled by the refrigerant in the first passage.

• Rotor core fixed to a shaft
• Stator with coil ends at both ends
• First refrigerant passage in the shaft outside the rotor core
• Second refrigerant passage inside the rotor core
• First outlet of the first refrigerant passage on the shaft
• Cooling of rotor core by refrigerant in the second passage
• Cooling of coil ends by refrigerant in the first passage

Potential Applications

The technology could be used in various electric motor applications where efficient cooling of both the rotor core and coil ends is required.

Problems Solved

This technology solves the problem of overheating in electric motors by providing a dual cooling system for both the rotor core and coil ends.

Benefits

The benefits of this technology include improved motor efficiency, increased lifespan of the motor components, and enhanced overall performance.

Potential Commercial Applications

The technology could find applications in industries such as automotive, HVAC systems, industrial machinery, and more, where reliable and efficient electric motors are essential.

Possible Prior Art

One possible prior art could be the use of separate cooling systems for different components of electric motors, but the specific configuration described in this patent application may be unique.

How does the efficiency of the motor compare to traditional electric motors without dual cooling systems?

The efficiency of the motor with dual cooling systems may be higher due to better temperature regulation, but specific data on the comparison is not provided in the abstract.

What are the potential cost implications of implementing this dual cooling system in electric motors?

The cost implications of incorporating this dual cooling system in electric motors are not discussed in the abstract. Additional information would be needed to assess the economic feasibility of this technology.

Original Abstract Submitted

an electric motor disclosed herein may comprise a rotor core fixed to a shaft, a stator, and first and second refrigerant passages. the stator may include coil ends at both ends. the first refrigerant passage may be provided in the shaft and arranged outside the rotor core in an axial direction of the shaft. the second refrigerant passage may extend inside the rotor core. a first outlet of the first refrigerant passage may be provided on the shaft, and an ejecting direction of refrigerant at the first outlet may be directed towards one of the coil ends. the rotor core is cooled by the refrigerant flowing in the second refrigerant passage. the coil ends are cooled by the refrigerant flowing in the first refrigerant passage, that is, the refrigerant that has not cooled the rotor.