Granted Patent B2

US 12,620,864 · App. 18/244,910 · Granted May 5, 2026

Inventors: Akihiko Eguchi (Shizuoka, JP); Shota Nogiwa (Shizuoka, JP); Yuki Suzuki (Shizuoka, JP); Tamotsu Tanaka (Shizuoka, JP); Ryosuke Tonooka (Shizuoka, JP)

Assignee: Mahle International GmbH

H02K5/225H02K5/02H02K2203/09

Abstract

Claims (26)

1 . A cover member for a motor unit interposed between a motor and a control substrate for controlling operation of the motor, comprising:

the motor has a bus bar terminal electrically connected to a stator coil;

the control substrate has a connection terminal that is fitted to the bus bar terminal and is structured and arranged to electrically connect the control substrate to a stator;

the cover member has a through hole, through which the bus bar terminal pierces, and an enclosing part for enclosing a fitting location for the bus bar terminal and the connection terminal, as seen in a piercing direction of the bus bar terminal; and

wherein the enclosing part has an inner radial extent greater than that of the through hole relative to the piercing direction.

2 . The cover member according to claim 1 , wherein an inner surface of the through hole has an inclined surface, which is tilted such that, the farther the bus bar terminal proceeds in a direction of insertion, the smaller the width becomes.

3 . The cover member according to claim 1 , wherein the cover member is composed of resin.

4 . The cover member according to claim 1 , wherein the cover member includes a bottom plate, and the enclosing part has a cylindrical shape that projects axially from the bottom plate towards the base substrate.

5 . The cover member according to claim 4 , wherein the through hole has a part projecting perpendicularly from the bottom plate axially away from the base substrate.

6 . The cover member according to claim 5 , wherein the through hole opens into the enclosing part.

7 . A motor unit, comprising:

a control substrate,

a motor, and

a cover member interposed between the control substrate and the motor,

the motor having a bus bar terminal electrically connected to a stator coil of the motor,

the control substrate having a connection terminal that is fitted to the bus bar terminal and is structured and arranged to electrically connect the control substrate to the stator,

the cover member having a through hole, through which the bus bar terminal pierces in a piercing direction, and an enclosing part for enclosing a fitting location for the bus bar terminal and the connection terminal, as seen in the piercing direction of the bus bar terminal; and

wherein the enclosing part has an inner radial extent greater than that of the through hole relative to the piercing direction.

8 . The motor unit according to claim 7 , wherein an inner surface of the through hole has an inclined surface.

9 . The motor unit according to claim 8 , wherein the inclined surface is tilted such that, the farther the bus bar terminal proceeds in a direction of insertion, the smaller the width becomes.

10 . The motor unit according to claim 8 , wherein the cover member is composed of resin.

11 . The motor unit according to claim 7 , wherein the cover member is composed of resin.

12 . The motor unit according to claim 7 , wherein the motor is a 3-phase motor.

13 . The motor unit according to claim 7 , wherein the cover member includes a bottom plate, and wherein the enclosing part has a cylindrical shape that projects axially from the bottom plate towards the base substrate.

14 . The motor unit according to claim 13 , wherein the through hole has a part projecting perpendicularly from the bottom plate axially away from the base substrate.

15 . The motor unit according to claim 14 , wherein the through hole opens into the enclosing part.

Assignments (1)

Continuity (1)

References Cited (12)