▎ 摘　　要

NOVELTY - The camera has a handheld case (10) surrounded to form a mounting cavity, which is provided with an electric control component (22) and a switching component (20). A cable (30) is electrically connected with the electric control component. A liquid cooling component is installed with a heat exchange component, a pumping component (42), and a liquid cooling circulating pipeline (43). The heat exchange component is fixedly set on the electric control component. The pumping component is connected with the heat exchange component through the liquid cooling circulating pipeline. A portion of the liquid cooling circulating pipeline is embedded in the cable and extended outside the handheld case along length direction of the cable. USE - Medical handheld video camera for use by a doctor. ADVANTAGE - The camera can be cooled through the liquid cooling circulation pipeline without changing size of the camera and affecting appearance of the camera by placing the liquid cooling assembly in the limited space so as to ensure miniaturization design of the camera. DETAILED DESCRIPTION - The pumping component is a piezoelectric micro-pump. The heat exchange component is a heat exchanger. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of a medical handheld video camera. 10Handheld case 20Switching component 21Adapter 22Electric control component 30Cable 42Pumping component 43Liquid cooling circulation pipeline 50Adapter 60Connecting piece 70Wiring sleeve pipe