Cooling appliance and operation method thereof

1. A cooling appliance, comprising:

a plurality of thermally insulated storage chambers;

a cooling system for cooling the storage chambers, the cooling system operating in a first mode when it actively cools one or more of the chambers and a second mode when it does not actively cool one or more of the chambers; and

an indication unit configured to show information regarding each of the storage chambers that is actively cooled by the cooling system when operating in the first mode;

wherein the indication unit comprises multiple indication portions respectively corresponding to one or more storage chambers and illumination elements for illuminating the corresponding indication portions; wherein only when one or more of the storage chambers is being actively cooled when the cooling system operates in the first mode, the luminance of the illumination element corresponding to each actively cooled storage chamber periodically and gradually changes between a lower limit value and an upper limit value.

2. The cooling appliance according to claim 1 , wherein, the information is shown through characters, symbols, and optical and/or acoustic signals.

3. The cooling appliance according to claim 1 , wherein, the multiple indication portions are sequentially arranged according to an arrangement sequence of the storage chambers.

4. The cooling appliance according to claim 1 , further comprising:

multiple doors, wherein each of the doors is used to close or open at least one part of the corresponding storage chambers, and the indication unit is disposed on at least one door.

5. The cooling appliance according to claim 4 , wherein, the indication unit is disposed on a front side of the door.

6. The cooling appliance according to claim 1 , further comprising:

multiple doors for closing or opening the corresponding storage chambers, and each indication portion is disposed on the door of the storage chamber corresponding to the indication portion respectively.

7. The cooling appliance according to claim 1 , further comprising:

a main display unit for displaying at least one set parameter of the cooling appliance, wherein the indication unit and the main display unit are separately disposed.

8. The cooling appliance according to claim 7 , wherein, in the case that the multiple storage chambers are closed, when viewed from a front side of the cooling appliance, the main display unit is invisible, and the indication unit is visible.

9. The cooling appliance according to claim 1 , further comprising:

a main display unit for setting at least one parameter of the cooling appliance, wherein the indication unit is integrated inside the main display unit.

10. An operation method of a cooling appliance, wherein the cooling appliance comprises multiple storage chambers and a cooling system for cooling the storage chambers, the method comprising:

determining which of the storage chambers is/are currently actively cooled by the cooling system; and

indicating, by an indication unit which comprises multiple illumination elements, each of the illumination elements corresponding to at least one storage chamber, information of each of the storage chambers being actively cooled by the cooling system by periodically and gradually changing luminance of the illumination element corresponding to the storage chamber between a lower limit value and an upper limit value.

11. The method according to claim 10 , wherein, the step of determining which of the storage chambers is/are being cooled by the cooling system comprises:

detecting the temperature of each storage chamber, and judging whether the obtained storage chamber temperature is falling; if yes, determining that the cooling system is cooling the storage chamber with the falling temperature.

12. The method according to claim 10 , wherein, the cooling system comprises at least one valve for changing a cooling mode of the cooling system, and it is judged, by determining a position of the valve, which of the storage chambers is/are being cooled by the cooling system.

13. The method according to claim 1 , wherein when one of the storage chambers is not cooled, the corresponding illumination element is either not activated or it luminance does not vary.

14. A cooling appliance, comprising:

at least one thermally insulated storage chamber;

a cooling system for cooling the at least one storage chamber and being operable in a first mode in which the storage chamber is actively cooled and a second mode in which the storage chamber is not actively cooled; and

an indication unit configured to show information as to whether the storage chamber is being actively cooled by the cooling system when operating in the first mode;

wherein the indication unit comprises an indication portion corresponding to the at least one storage chamber and an illumination element for illuminating the indication portion.

15. The cooling appliance according to claim 14 , wherein, the information is shown through characters, symbols, and optical and/or acoustic signals.

16. The cooling appliance according to claim 14 , further comprising:

a door, wherein the door is used to close or open at least one part of the storage chamber, and the indication unit is disposed on the door.

17. The cooling appliance according to claim 16 , wherein the indication unit is disposed on a front side of the door.

18. The cooling applicant according to claim 14 , wherein only when the at least one storage chamber is being cooled, the luminance of the illumination element periodically and gradually changes between a lower limit value and an upper limit value.