Gear motor, including a gear mechanism driven via a clutch by an electric motor

Patent metadata

Field	Value
Publication number	US-12454985-B2
Application number	US-202017628298-A
Country	US
Kind code	B2
Filing date	Jul 2, 2020
Priority date	Jul 19, 2019
Publication date	Oct 28, 2025
Grant date	Oct 28, 2025

Abstract

A gear motor includes a gear mechanism driven via a clutch by an electric motor. The clutch is at least partially enclosed by a protective part, and the protective part includes two cowl parts. The cowl parts are connected to one another and each cowl part includes grill openings, e.g., on their side facing toward the electric motor.

First claim

The invention claimed is:

1. A gear motor, comprising:
a gear mechanism adapted to be driven via a clutch by an electric motor; and
a fan connected in a rotationally-fixed manner to a shaft of the gear mechanism;
wherein the clutch and the fan are at least partially enclosed by a protective part;
wherein the protective part includes two cowl parts; and
wherein the cowl parts are connected to one another and each cowl part includes grill openings.

2. A gear motor, comprising:
a gear mechanism adapted to be driven via a clutch by an electric motor;
wherein the clutch is at least partially enclosed by a protective part;
wherein the protective part includes two cowl parts; and
wherein the cowl parts are connected to one another and each cowl part includes grill openings on a side facing toward the electric motor.

3. A gear motor, comprising:
a gear mechanism adapted to be driven via a clutch by an electric motor;
wherein the clutch is at least partially enclosed by a protective part;
wherein the protective part includes two cowl parts;
wherein the cowl parts are connected to one another and each cowl part includes grill openings; and
wherein the two cowl parts are pressed against one another and/or are connected in a form-fitting manner by lever latches.

4. A gear motor, comprising:
a gear mechanism adapted to be driven via a clutch by an electric motor;
wherein the clutch is at least partially enclosed by a protective part;
wherein the protective part includes two cowl parts;
wherein the cowl parts are connected to one another and each cowl part includes grill openings; and
wherein a door part is connected to at least one of the cowl parts.

5. The gear motor according to claim 2 , wherein a door part is connected to each of the cowl parts.

6. The gear motor according to claim 4 , wherein a handle part is connected to the door part.

7. A gear motor, comprising:
a gear mechanism adapted to be driven via a clutch by an electric motor;
wherein the clutch is at least partially enclosed by a protective part;
wherein the protective part includes two cowl parts;
wherein the cowl parts are connected to one another and each cowl part includes grill openings; and
wherein a handle part is connected to the cowl part.

8. The gear motor according to claim 2 , wherein a motor shaft and/or a rotor of the electric motor is arranged through a recess of the protective part into an interior enclosed by the protective part, the protective part including a collar protruding and/or axially protruding toward the electric motor and abutting the motor and/or a housing part of the motor.

9. A gear motor, comprising:
a gear mechanism adapted to be driven via a clutch by an electric motor;
wherein the clutch is at least partially enclosed by a protective part;
wherein the protective part includes two cowl parts;
wherein the cowl parts are connected to one another and each cowl part includes grill openings;
wherein a motor shaft and/or a rotor of the electric motor is arranged through a recess of the protective part into an interior enclosed by the protective part, the protective part including a collar protruding and/or axially protruding toward the electric motor and abutting the motor and/or a housing part of the motor; and
wherein the collar includes a first tube segment fastened on a first one of the cowl parts and a second tube segment, the first tube segment having a radial through hole through which a screw is arranged, the screw protruding through a through oblong hole arranged in the second tube segment.

10. The gear motor according to claim 9 , wherein the collar is arranged in four parts, and the oblong hole is aligned in an axial direction.

11. The gear motor according to claim 9 , wherein a circumferential angle range covered by the first tube segment in a circumferential direction is 180°.

12. The gear motor according to claim 11 , wherein a circumferential angle range covered by the second tube segment in the circumferential direction is 180°.

13. The gear motor according to claim 4 , wherein the door part is connected by a detachable pivot bearing to the cowl part.

14. The gear motor according to claim 13 , wherein the pivot bearing includes a first fitting part, connected to the cowl part, and a second fitting part, connected to the door part, the first fitting part including a pin received and rotatable in a recess and/or a pocket hole of the second fitting part, the pin being aligned in an axial direction and/or a longest extension of the pin being aligned in the axial direction.

15. The gear motor according to claim 2 , wherein the cowl parts are arranged mirror symmetrical and/or structurally identical to one another.

16. The gear motor according to claim 4 , wherein a screw head of a screw passing through a recess of the door part presses the door part onto the cowl part, the screw being screwed into a threaded bore of the cowl part.

17. The gear motor according to claim 2 , wherein an air guiding cowl at least partially encloses the gear mechanism, the protective part includes a recess arranged on a side facing toward the gear mechanism, arranged radially inside the air guiding cowl.

18. A gear motor, comprising:
a gear mechanism adapted to be driven via a clutch by an electric motor;
wherein the clutch is at least partially enclosed by a protective part;
wherein the protective part includes two cowl parts;
wherein the cowl parts are connected to one another and each cowl part includes grill openings;
wherein an air guiding cowl at least partially encloses the gear mechanism, the protective part includes a recess arranged on a side facing toward the gear mechanism, arranged radially inside the air guiding cowl; and
wherein a clear internal diameter of the recess is at least twice and/or at least five times a diameter of a drive shaft of the gear mechanism.

19. The gear motor according to claim 2 , wherein the cowl part includes line arrangements, each line arrangement including grill openings arranged in a line and/or a straight line regularly spaced apart from one another at a distance and passing through the cowl part, the line arrangements being aligned in parallel to one another and being spaced apart regularly from one another perpendicularly to a direction of the respective line at the distance.

20. A gear motor, comprising:
a gear mechanism adapted to be driven via a clutch by an electric motor;
wherein the clutch is at least partially enclosed by a protective part;
wherein the protective part includes two cowl parts;
wherein the cowl parts are connected to one another and each cowl part includes grill openings;
wherein the cowl part includes line arrangements, each line arrangement including grill openings arranged in a line and/or a straight line regularly spaced apart from one another at a distance and passing through the cowl part, the line arrangements being aligned in parallel to one another and being spaced apart regularly from one another perpendicularly to a direction of the respective line at the distance; and
wherein each line arrangement has an offset in relation to a respective closest adjacent line arrangement, and the grill openings are rectangular.

21. The gear motor according to claim 20 , wherein the offset is half of the distance.

22. The gear motor according to claim 4 , wherein the door part includes line arrangements, each line arrangement including grill openings arranged in a line and/or a straight

Assignees

• Sew Eurodrive Gmbh & Co Kg

Inventors

• Wagner Guido
• Schier Aiden

Classifications

• F16D2300/26

  Cover or bell housings; Details or arrangements thereof · CPC title

• F16P1/02 Primary

  Fixed screens or hoods · CPC title

• H02K7/116 Primary

  with gears · CPC title

• F02B77/11

  Thermal or acoustic insulation · CPC title

• F02B63/04

  for electric generators · CPC title