Domestic appliance with an open air duct
View Patent ↗A domestic appliance includes an open air duct and a flow cross-section adjuster in the air duct for adjusting a flow cross-section of the air duct. The flow cross-section adjuster includes rotatably mounted blades for noise dampening purpose. The air duct and the flow cross-section adjuster are in a cooling air inflow region relative to a heat exchanger or a compressor of the domestic appliance.
1. A domestic appliance comprising: an open air duct; and a flow cross-section adjuster in the air duct configured to adjust a flow cross-section of the air duct, the flow cross-section adjuster comprising rotatably mounted blades to dampen noise,
wherein the air duct and the flow cross-section adjuster are in a cooling air inflow region relative to a noise- and heat-generating device of the domestic appliance, wherein in a closed state said rotatably mounted blades are positioned close the flow cross-section.
2. The domestic appliance of claim 1 , further comprising a fan to move cooling air to the noise- and heat-generating device through the air duct.
3. The domestic appliance of claim 2 , wherein said fan is located upstream of the flow cross-section adjuster.
4. The domestic appliance of claim 2 , wherein said fan is located downstream of the flow cross-section adjuster.
5. The domestic appliance of claim 1 , wherein a flow cross-section of the flow cross-section adjuster is adjustable in response to a flow speed of the air.
6. The domestic appliance of claim 1 , wherein the flow cross-section adjuster has an actuating device to adjust the flow cross-section to dampen noise.
7. The domestic appliance of claim 1 , wherein the flow cross-section adjuster is adjustable to minimize the flow cross-section for a predetermined cooling power.
8. The domestic appliance of claim 1 , wherein the flow cross-section adjuster comprises a sound-dampening material.
9. The domestic appliance of claim 1 , wherein the blades comprise a sound-dampening material.
10. The domestic appliance of claim 1 , configured as a tumble dryer, washer-dryer or washing machine.
11. The domestic appliance of claim 10 , further comprising a heat pump and wherein the flow cross-section adjuster is an open air duct toward or away from the heat pump.
12. A domestic appliance comprising:
a chamber to receive domestic items to be treated;
a noise- and heat-generating device included in a treatment process of the domestic appliance;
a heat exchanger or a compressor adjacent the chamber;
an air duct; and
a flow cross-section adjuster in or adjacent the air duct, the flow cross-section adjuster comprising at least one rotatably mounted blade to dampen noise,
wherein the air duct and the flow cross-section adjuster are positioned in a cooling air inflow region relative to the noise- and heat-generating device, and
wherein in a closed state said at least one rotatably mounted blade is positioned to close the flow cross-section to dampen noise and in an open state said at least one rotatably mounted blade is positioned to allow cooling air into the air duct to cool the noise- and heat-generating device.
13. The domestic appliance of claim 12 , further comprising a fan to move the cooling air inflow to the noise- and heat-generating device through the air duct.
14. The domestic appliance of claim 13 , wherein said fan is located arranged upstream of the flow cross-section adjuster.
15. The domestic appliance of claim 13 , wherein said fan is located downstream of the flow cross-section adjuster.
16. The domestic appliance of claim 12 , wherein a flow cross-section of the flow cross-section adjuster is adjustable in response to a flow speed of the air.
17. The domestic appliance of claim 12 , wherein the flow cross-section adjuster has an actuating device to adjust the flow cross-section to dampen noise.
18. The domestic appliance of claim 12 , wherein the flow cross-section adjuster is adjustable to minimize the flow cross-section for a predetermined cooling power.
19. The domestic appliance of claim 12 , wherein the flow cross-section adjuster comprises a sound-dampening material.
20. The domestic appliance of claim 12 , wherein the at least one rotatably mounted blade comprises a sound-dampening material.
21. The domestic appliance of claim 12 , further comprising a tumble dryer, washer-dryer or washing machine.
22. The domestic appliance of claim 1 , wherein said noise- and heat-generating device comprises a heat exchanger and/or a compressor.
23. The domestic appliance of claim 12 , wherein said noise- and heat-generating device comprises a heat exchanger and/or a compressor.
24. The domestic appliance of claim 1 , further comprising a tumble dryer, washer-dryer or washing machine.
25. The domestic appliance of claim 1 , wherein said cooling air inflow enters the air duct from outside of the domestic appliance.
26. The domestic appliance of claim 12 , wherein said cooling air inflow enters the air duct from outside of the domestic appliance.