Water-channelling domestic appliance, in particular a dishwasher

• US 9,320,414 B2
• Filed: 07/27/2010
• Issued: 04/26/2016
• Est. Priority Date: 07/16/2010
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Inventors: Fritz, Heiko, Rosenbauer, Michael Georg, Schwenk, Bernd, Classen, Egbert
• Primary Examiner(s): KO, JASON Y
• Application Number:
  US13/809,170
• Publication Number:
  US 20130106264A1
• Time in Patent Office: 2,100 Days
• US Class Current: 1/1
• CPC Class Codes: A47L 15/4209 Insulation arrangements, e.g. for sound damping or heat insulation
• CPC Class Codes: A47L 15/4246 Details of the tub A47L15/4272 takes precedence; insulation arrangements A47L15/4209
• CPC Class Codes: D06F 39/12 Casings; Tubs
• CPC Class Codes: G10K 11/162 Selection of materials
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A water-conducting household appliance includes a wash compartment and a sound-deadening layered mat which is applied externally to at least one wall of the wash compartment at a region which has a higher level of operational vibration than another region of the wall. The first layered mat is in particular a bitumen mat.

Claims

1. A water-conducting household appliance, comprising:

a wash compartment; and

a spraying device configured to spray an interior of the wash compartment with liquid during operation of the water-conducting household appliance;

a sound-deadening first layered mat applied externally to a greater vibration region of a wall of the wash compartment, the first layered mat being confined to the greater vibration region, the greater vibration region corresponding to a location on the wall configured to experience a higher level of vibration during operation of the water-conducting household appliance than a lesser vibration region of the wall; and

wherein the greater vibration region is a region in which liquid droplets striking the wall during operation of the water-conducting household appliance causes the higher level of vibration.

2. The water-conducting household appliance of claim 1, constructed in the form of a dishwasher.

3. The water-conducting household appliance of claim 1, wherein the first layered mat is a bitumen mat.

4. The water-conducting household appliance of claim 1, wherein the greater vibration region is a water input region.

5. The water-conducting household appliance of claim 1, further comprising a second layered mat applied at least to the lesser vibration region of the wall and made of a material different from a material of the first layered mat.

6. The water-conducting household appliance of claim 5, wherein the second layered mat is a thermally insulating layered mat or a sound absorption mat.

7. The water-conducting household appliance of claim 5, further comprising at least a sound-insulating third layered mat, which covers an area of the wall of the wash compartment that is larger that is than an area covered by the first layered mat.

8. The water-conducting household appliance of claim 7, wherein the third layered mat is disposed externally on the wall of the wash compartment.

9. The water-conducting household appliance of claim 7, wherein the third layered mat is disposed externally on the second layered mat.

10. The water-conducting household appliance of claim 8, wherein the second and third layered mats are configured as a single-piece material composite.

11. The water-conducting household appliance of claim 5, wherein the first and second layered mats form an insulating layered structure which is disposed without a gap between the wall of the wash compartment and an outer housing wall.

12. The water-conducting household appliance of claim 1, wherein the first layered mat has a material thickness which is tailored to a vibration amplitude generated in the greater vibration region.

13. The water-conducting household appliance of claim 1, wherein the wall of the wash compartment comprises a plurality of greater vibration regions and a plurality of said first layered mats are applied at a distance from one another, each of said plurality of first layered mats being confined to a respective greater vibration region.

14. The water-conduction household appliance of claim 13, wherein each of said plurality of first layered mats have a material thickness tailored to a vibration amplitude generated in the respective greater vibration region.

15. The water-conducting household appliance of claim 1, wherein a plurality of walls of the wash compartment comprise greater vibration regions and a plurality of said first layered mats are applied at a distance from one another, each of said plurality of first layered mats being confined to a respective greater vibration region.

16. The water-conduction household appliance of claim 15, wherein each of said plurality of first layered mats have a material thickness tailored to a vibration amplitude generated in the respective greater vibration region.

17. A method for producing the water-conducting household appliance of claim 1, the method comprising the steps of:

testing a vibration behavior of a wall of a wash compartment during operation of the household appliance;

determining the presence of the greater vibration region of the wall; and

externally applying the sound-deadening first layered mat only to the greater vibration region.

18. The method of claim 17, further comprising the step of applying a second layered mat of a material different from a material of the first layered mat at least to the lesser vibration region.

19. The method of claim 17, wherein the first layered mat is a bitumen mat.

20. The method of claim 17, wherein the grater vibration region is a water input region.

21. The method of claim 18, wherein the second layered mat is a thermally insulating layered mat or a sound absorption mat.

22. The method of claim 18, further comprising the step of applying at least a sound-insulating third layered mat to cover an area of the wall of the wash compartment, an area of the third layered mat being larger than an area covered by the first layered mat.

23. The method of claim 22, wherein the third layered mat is disposed externally on the wall of the wash compartment.

24. The method of claim 22, wherein the third layered mat is disposed externally in the second layered mat.

25. The method of claim 22, wherein the second and third layered mats are configured as a single-piece material composite.

26. The method of claim 18, wherein the first and second layered mats form an insulating layered structure which is disposed without a gap between the wall of the wash compartment and an outer housing wall.

27. The method of claim 17, further comprising:

determining the presence of a plurality of greater vibration wall regions that experience higher levels of vibration during operation of water-conducting household appliance than at least one lesser vibration wall region with lower of operational vibration; and

applying respective sound-deadening first layered mats at each greater vibration wall region, each sound-deadening first layered mat being applied at a distance from other sound-deadening first layered mats,

Wherein the greater vibration regions are a regions in which liquid droplets striking an interior of the water-conducting household appliance during operation of the Water-conducting household appliance causes the higher levels of vibration.