Abstract: The present invention provides a refrigerator door with a replaceable door panel, comprising: a door body and a decorative door panel detachably connected to the door body; a rotary latch and a limiting member are disposed on the door body; a rear side of the decorative door panel facing towards the door body comprises a second limiting member and a lock post wherein when the decorative door panel is assembled on a front side of the door body, the rotary latch and the lock post snap-fit each other to limit a displacement of the decorative door panel in an up-down direction; the first limiting member cooperates with the second limiting member to limit a displacement of the decorative door panel in a front-rear direction.

Abstract: A refrigerator door with a replaceable door panel, comprising: a rear door body, and a door panel detachably connected to the rear door body; the rear door body comprises a first boss and a first engaging member which are disposed opposite to each other; a rear side of the door panel comprises a link latch and a second engaging member which are disposed opposite to each other; wherein when the door panel is assembled to a front side of the rear door body, one end of the link latch snap-fits with the first boss to limit a displacement of the door panel in an up-down direction; the first engaging member engages the second engaging member to limit a displacement of the door panel in a front-rear direction.

Abstract: Provided are a control method for a refrigerating and freezing device, and the refrigerating and freezing device. The refrigerating and freezing device includes a cabinet provided with a groove communicating with a surrounding environment and sunken inwards, and at least one fan for promoting air of the surrounding environment to flow into the groove. The control method includes: judging whether a temperature in the groove is less than or equal to a dew point temperature; and if yes, controlling the fan to operate at a first preset rotation speed. The temperature in the groove is increased by controlling the fan to operate to introduce hot air of the surrounding environment into the groove when the temperature in the groove is less than or equal to the dew point temperature, which avoids condensation in the groove and improves safety and reliability of electrical parts in the groove.