HEATING SYSTEM FOR AN APPARATUS FOR THE TREATMENT OF TEXTILES

• US 20190319489A1
• Filed: 11/20/2017
• Published: 10/17/2019
• Est. Priority Date: 11/21/2016
• Status: Active Grant

• Current Assignee: Electrolux Appliances Aktiebolag (AB Electrolux)
• Original Assignee: Electrolux Appliances Aktiebolag (AB Electrolux)
• Inventors: Chiriatti, Antonio Francesco
• Granted Patent: US 11,050,297 B2
• Time in Patent Office: Days
• CPC Class Codes: D06F 2103/16 Washing liquid temperature
• CPC Class Codes: D06F 2105/10 Temperature of washing liquids; Heating means therefor
• CPC Class Codes: D06F 25/00 Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air control of washing or of washing and drying D06F33/00, D06F34/00; domestic laundry dryers D06F58/00
• CPC Class Codes: D06F 34/05 for wireless communication between components, e.g. for remote monitoring or control
• CPC Class Codes: D06F 34/24 Liquid temperature
• CPC Class Codes: D06F 37/065 ribs or lifters having means for circulating the washing liquid
• CPC Class Codes: D06F 39/04 Heating arrangements
• CPC Class Codes: D06F 58/26 Heating arrangements, e.g. gas heating equipment D06F58/18 takes precedence
• CPC Class Codes: H01F 27/288 Shielding
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: Y02B 40/00 Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

A laundry treating apparatus having a tub, a drum rotatably mounted inside the tub, at least one electrical powered element mounted in the drum, a wireless power transmitter unit and a wireless power receiver unit. The wireless power receiver unit supplies power to the electrical powered element.

Claims

1. A laundry treating apparatus comprising:

a tub;

a drum rotatably mounted inside the tub;

at least one electric element mounted in the drum;

a wireless power transmitter unit connected to the tub; and

a wireless power receiver unit connected to the drum;

wherein the wireless power receiver unit is configured to receive power from the wireless power transmitter unit, and supply the power to the at least one electric element.

2. The laundry treating apparatus according to claim 1, wherein the at least one electric element comprises at least one heating element.

3. The laundry treating apparatus according to claim 1, wherein the at least one electric element comprises at least one interface unit configured to wirelessly transmit data.

4. The laundry treating apparatus according to claim 1, wherein the electric element comprises at least one sensor element.

5. The laundry treating apparatus according to claim 3, wherein the laundry treating apparatus comprises an appliance control unit and the electric element further comprises at least one sensor element fixed to the drum and configured to generate measurement data, wherein the at least one interface unit is configured to wirelessly transmit the measurement data to the control unit.

6. The laundry treating apparatus according to claim 1, wherein the power transmitter unit and the power receiver unit are positioned, one opposite to the other, fixed respectively to the tub and to the drum, parallel in radial direction.

7. The laundry treating apparatus according to claim 1, wherein the power transmitter unit comprises a transmission coil generating a magnetic field and the power receiver unit comprises a reception coil generating power from the magnetic field generated by the transmission coil and supplying the generated power to the at least one electric element.

8. The laundry treating apparatus according to claim 7, wherein the transmission coil and the reception coil are aligned, centered and parallel in a radial direction.

9. The laundry treating apparatus according to claim 8, wherein the transmission coil and the reception coil have a common radius dimension approximately equal to the drum external radius and are distanced in an axial direction by a distance lower than their radius.

10. The laundry treating apparatus according to claim 9, wherein the transmission coil and the reception coil are distanced in the axial direction by a distance lower than 10 cm.

11. The laundry treating apparatus according to claim 9, wherein the transmission coil and the reception coil are distanced in the axial direction by a distance lower than 5 cm.

12. The laundry treating apparatus according to claim 1, wherein the power receiver unit comprises a reception coil and a receiver magnetic shielding member, and the transmitter unit comprises a transmission coil and a transmission magnetic shielding member.

13. The laundry treating apparatus according to claim 12, wherein the receiver magnetic shielding member is positioned between the reception coil and the drum side, and the transmission magnetic shielding member is positioned between the transmission coil and the tub side.

14. The laundry treating apparatus according to claim 7, wherein:

the power receiver unit comprises a receiver shielding member positioned on the opposite side of the reception coil with respect to the power transmitter unit; and

/or

the power transmitter unit comprises a transmission shielding member positioned on the opposite side of the transmission coil with respect to the power receiver unit.

16. The laundry treating apparatus according to claim 1, wherein the power receiver unit comprises at least two reception coils and the at least one electric element comprises at least two electric elements, the at least two reception coils supplying the at least two electric elements.

17. The laundry treating apparatus according to claim 1, wherein the drum comprises at least one drum lifter and in that the at least one electric element is integrated in the at least one drum lifter.

18. The laundry treating apparatus according to claim 4, wherein the drum comprises at least one drum lifter and the at least one sensor element comprises at least one temperature sensing element positioned in the at least one drum lifter and configured to generate temperature measurement data.

19. The laundry treating apparatus according to claim 18, wherein the apparatus comprises an appliance control unit and the at least one electric element comprises at least one interface unit designed to wirelessly transmit the temperature measurement data to the control unit.

20. The laundry treating apparatus according to claim 19, wherein the power receiver unit comprises a reception coil supplying the at least one interface unit and in that the at least one interface unit is fixed to the drum.

21. The laundry treating apparatus according to claim 19, wherein the interface unit is fixed to a central radial portion of the drum.

15. (canceled)

22. The laundry treating apparatus according to claim 19, wherein the interface unit is configured to wirelessly transmit to the control unit additional measurement data received from at least another sensor element. 23-34. (canceled)