Machine for washing or drying laundry

Patent metadata

Field	Value
Publication number	US-9850614-B2
Application number	US-201615074220-A
Country	US
Kind code	B2
Filing date	Mar 18, 2016
Priority date	Mar 19, 2015
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

A machine for washing or drying laundry, having a stationary part, a tub, a drum rotatably accommodated in the tub, and a drive motor. The drive motor comprises a stator or housing component connected to the machine, a rotor having a rotor shaft connected with the drum, and bearings arranged in the stator or a housing component, and the rotor shaft is rotatably mounted by the bearings. One or more spring or damping elements connects the stator or housing component to the stationary part.

First claim

What is claimed is:

1. A machine for washing or drying laundry, comprising:
a machine housing;
a tub disposed within the machine housing;
a drum rotatably mounted within the tub;
a motor having a motor housing defining an interior and an exterior, a stator and a rotor disposed within the interior and molded lugs disposed on the exterior of the motor housing, with the molded lugs extending outward from the exterior;
a bellows connecting the tub to the motor housing and configured to establish a water-tight connection between the tub and the motor; and
a spring-damper system including:
a spring element supported by the machine housing and coupled with a first set of at least two of the molded lugs disposed on the exterior of the motor housing; and
a support element supported by the machine housing and coupled with a second set of at least two of the molded lugs disposed on the exterior of the motor housing;

wherein the spring-damper system is configured such that the motor is supported by the machine housing.

2. The machine of claim 1 wherein the motor housing includes at least a first motor housing and a second motor housing.

3. The machine of claim 2 wherein the first motor housing is positioned to face the drum and the second motor housing is positioned to face the machine housing.

4. The machine of claim 3 wherein the bellows connects to the first motor housing.

5. The machine of claim 4 wherein the first motor housing includes a radial surface and the bellows connects to the radial surface of the first motor housing.

6. The machine of claim 1 wherein the spring-damper system only directly supports the motor.

7. The machine of claim 1 wherein the motor housing includes a first set of at least two adjacent molded lugs and a second set of at least two adjacent molded lugs, wherein the first set of at least two adjacent molded lugs is different than the second set of at least two adjacent molded lugs.

8. The machine of claim 7 wherein the first set of at least two adjacent molded lugs are coupled with spring elements.

9. The machine of claim 8 wherein the second set of at least two adjacent molded lugs are coupled with support elements.

10. The machine of claim 9 wherein the first set of at least two adjacent molded lugs are positioned horizontally above the second set of at least two adjacent molded lugs.

11. The machine of claim 1 wherein the spring element is a tension spring element.

12. The machine of claim 1 wherein the motor is rotatably connected with the drum.

13. The machine of claim 12 wherein the bellows is not configured to accept support forces from the motor, tub, or drum.

14. The machine of claim 12 wherein the bellows is expandable and is configured to compensate relative movements between the motor and the tub by way of expansion.

15. The machine of claim 1 wherein the spring-damper system is configured to dampen forces acting on the motor.

16. The machine of claim 1 wherein the spring-damper system is configured to dampen forces acting on the tub.

17. The machine of claim 1 wherein the motor housing includes bearings configured to support a rotor shaft.

18. The machine of claim 17 wherein the rotor shaft is not mounted to the tub.

Assignees

• Whirlpool Co

Inventors

• Chiriatti Antonio

Classifications

• D06F37/20 Primary

  Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations · CPC title

• D06F37/00

  Details specific to washing machines covered by groups D06F21/00 - D06F25/00 · CPC title

• D06F58/06

  Mountings for the rotating drums · CPC title

• D06F58/08

  Driving arrangements · CPC title

• D06F37/22 Primary

  in machines with a receptacle rotating or oscillating about a horizontal axis · CPC title