18501684. MOTOR simplified abstract (Toyota Jidosha Kabushiki Kaisha)

MOTOR

Organization Name

Toyota Jidosha Kabushiki Kaisha

Inventor(s)

Shogo Kajimoto of Toyota-shi (JP)

Yukio Tsuchiya of Toyota-shi (JP)

Yasuhiro Makido of Toyota-shi (JP)

Hideyuki Higashi of Okazaki-shi (JP)

Yuichiro Kanada of Toyota-shi (JP)

MOTOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 18501684 titled 'MOTOR

Simplified Explanation

The patent application describes a motor with a rotor, stator, housing, and annular member for sealing and injecting refrigerant towards the coil end.

• The motor includes a rotor, stator, housing, and annular member.
• The annular member surrounds the coil end and has holes for refrigerant injection.
• The holes have a specific shape for efficient refrigerant flow towards the coil end.

Potential Applications

The technology could be applied in various electric motor systems, such as HVAC systems, industrial machinery, and automotive applications.

Problems Solved

1. Efficient cooling of the motor components. 2. Sealing the stator core to prevent leakage.

Benefits

1. Improved motor performance and longevity. 2. Enhanced efficiency through targeted refrigerant injection.

Potential Commercial Applications

"Refrigerant Injection System for Electric Motors: Enhancing Cooling Efficiency"

Possible Prior Art

Prior art may include patents related to motor cooling systems and sealing mechanisms in electric motors.

Unanswered Questions

How does the specific shape of the holes impact the refrigerant flow efficiency?

The patent application mentions a specific shape for the holes, but it does not elaborate on the exact design and its impact on refrigerant flow efficiency.

What are the specific advantages of surrounding the coil end with the annular member?

While the patent application mentions the annular member surrounding the coil end, it does not specify the advantages or benefits of this design feature.

Original Abstract Submitted

A motor may include a rotor; a stator including a stator core and a coil; a housing that houses the rotor and the stator; and a first annular member that provides a seal between a first end face of the stator core in an axial direction of the stator core and an inner wall surface of the housing. The first annular member may be arranged so as to surround an outer periphery of a first coil end. The first annular member may include first holes through which refrigerant is injected toward the first coil end. At least one opening of the first holes may have a shape in which a maximum value of a first width, which is a dimension in a circumferential direction of the stator core, is greater than a maximum value of a second width, which is a dimension in the axial direction of the stator core.