A household appliance, comprising: a chamber; a camera; a door body movably connected to a front part of the chamber, a first air duct being defined in the door body, and the camera being located in the first air duct; and a heat dissipation device mounted in the door body and supplying air into the first air duct to dissipate heat for the door body and the camera, wherein the heat dissipation device comprises: a first bracket comprising a first air duct member, an air outlet being defined in the first air duct member, an air outlet grid being disposed at the air outlet; and a first fan being mounted on the door body by means of the first bracket, characterized in that two first fans are provided; the first air duct member has a first ventilation passage, a second ventilation passage, and a connecting ventilation passage, the connecting ventilation passage being in communication with the first ventilation passage, the second ventilation passage, and the air outlet; one of the two first fans is in communication with the first ventilation passage, and another one of the two first fans is in communication with the second ventilation passage; and the first ventilation passage is obliquely communicated with the connecting ventilation passage, and the second ventilation passage is horizontally communicated with the connecting ventilation passage. a chamber; a camera; a door body movably connected to a front part of the chamber, a first air duct being defined in the door body, and the camera being located in the first air duct; and a heat dissipation device mounted in the door body and supplying air into the first air duct to dissipate heat for the door body and the camera, wherein the heat dissipation device comprises: a first bracket comprising a first air duct member, an air outlet being defined in the first air duct member, an air outlet grid being disposed at the air outlet; and a first fan being mounted on the door body by means of the first bracket, characterized in that two first fans are provided; the first air duct member has a first ventilation passage, a second ventilation passage, and a connecting ventilation passage, the connecting ventilation passage being in communication with the first ventilation passage, the second ventilation passage, and the air outlet; one of the two first fans is in communication with the first ventilation passage, and another one of the two first fans is in communication with the second ventilation passage; and the first ventilation passage is obliquely communicated with the connecting ventilation passage, and the second ventilation passage is horizontally communicated with the connecting ventilation passage. a first bracket comprising a first air duct member, an air outlet being defined in the first air duct member, an air outlet grid being disposed at the air outlet; and a first fan being mounted on the door body by means of the first bracket, characterized in that two first fans are provided; the first air duct member has a first ventilation passage, a second ventilation passage, and a connecting ventilation passage, the connecting ventilation passage being in communication with the first ventilation passage, the second ventilation passage, and the air outlet; one of the two first fans is in communication with the first ventilation passage, and another one of the two first fans is in communication with the second ventilation passage; and the first ventilation passage is obliquely communicated with the connecting ventilation passage, and the second ventilation passage is horizontally communicated with the connecting ventilation passage.