Waterless keep-alive apparatus and refrigeration appliance provided with the waterless keep-alive apparatus

2:

• The waterless keep-alive apparatus of claim 1, wherein the air hole includes an air inlet and an air outlet, and the air duct includes an air intake duct and an air exhaust duct;
• wherein the air intake duct and the air exhaust duct are hermetically connected with the air inlet and the air outlet respectively when the keep-alive box is pushed into the inner tank of the refrigeration appliance, and the air intake duct and the air exhaust duct are respectively disconnected from the air inlet and the air outlet when the keep-alive box is pulled out.

3:

• The waterless keep-alive apparatus of claim 2, wherein both the air inlet and the air outlet are provided on the same side wall of the keep-alive box and a setting position of the air inlet is higher than a setting position of the air outlet in a vertical direction.

4:

• The waterless keep-alive apparatus of claim 3, wherein the air inlet and the air outlet are disposed along a diagonal line on the same side wall of the keep-alive box.

5:

• The waterless keep-alive apparatus of claim 2, wherein a protruding block extending along a direction of pulling the keep-alive box is provided at a location corresponding to the air outlet in the keep-alive box, a through slot penetrating through the protruding block is provided in the protruding block, and the through slot communicates with the air outlet to facilitate discharge of air in the keep-alive box slot.

6:

• The waterless keep-alive apparatus of claim 5, wherein the air outlet is provided on a rear wall of the keep-alive box, the protruding block extends from the rear wall of the keep-alive box to a front side of the keep-alive box, and the through slot is provided at the front side of the keep-alive box.

9:

• The waterless keep-alive apparatus of claim 8, wherein a groove is formed at an outer side of the sealing member by depression so as to receive an inner side wall of the air hole when hermetically connecting the air hole.

11:

• The refrigeration appliance of claim 10, wherein the air hole includes an air inlet and an air outlet, and the air duct includes an air intake duct and an air exhaust duct;
• wherein the air intake duct and the air exhaust duct are hermetically connected with the air inlet and the air outlet respectively when the keep-alive box is pushed into the inner tank of the refrigeration appliance, and the air intake duct and the air exhaust duct are respectively disconnected from the air inlet and the air outlet when the keep-alive box is pulled out.

12:

• The refrigeration appliance of claim 11, wherein both the air inlet and the air outlet are provided on the same side wall of the keep-alive box and a setting position of the air inlet is higher than a setting position of the air outlet in a vertical direction.

13:

• The refrigeration appliance of claim 12, wherein the air inlet and the air outlet are disposed along a diagonal line on the same side wall of the keep-alive box.

14:

• The refrigeration appliance of claim 11, wherein a protruding block extending along a direction of pulling the keep-alive box is provided at a location corresponding to the air outlet in the keep-alive box, a through slot penetrating through the protruding block is provided in the protruding block, and the through slot communicates with the air outlet to facilitate discharge of air in the keep-alive box slot.

15:

• The refrigeration appliance of claim 14, wherein the air outlet is provided on a rear wall of the keep-alive box, the protruding block extends from the rear wall of the keep-alive box to a front side of the keep-alive box, and the through slot is provided at the front side of the keep-alive box.

18:

• The refrigeration appliance of claim 17, wherein a groove is formed at an outer side of the sealing member by depression so as to receive an inner side wall of the air hole when hermetically connecting the air hole.