Built-in ventilation and heat-dissipation shutter

A built-in ventilation and heat-dissipation shutter is characterized in that bridge type ventilation openings are formed in the front side of a window plate, the whole window plate is of a flat plate shape, a sealing plate is arranged on the back side of the window plate, support plates and fixing plates are connected to the upper and lower ends of the window plate, and fixing holes are evenly distributed in the fixing plates. The built-in ventilation and heat-dissipation shutter has the advantages that the shutter is good in ventilation and heat dissipation effect, can effectively prevent the invasion and pollution of most of dust and prevent rainwater from wetting a transformer, can guarantee the work stability of the transformer and can prolong the service life of the transformer. 内置式通风散热百叶窗，整体呈平板型的窗板前面设有桥式通风口、背面是密封板，窗板上下两端连接着支撑板、固定板，固定板均布固定孔，该内置式通风散热百叶窗，既能保证了变压器具有良好的通风散热效果，又能有效的阻挡大部分灰尘浸入污染和防止雨水浸湿变压器，保证变压器的工作稳定性、提高了变压器的使用寿命。