At first, the improved locomotive did not have any front windows. After the EF58 electric locomotive was put into operation, the locomotive was modified according to the climatic environment along the line, such as installing an icicle cutting plate above the front window glass to prevent the running locomotive from hitting the icicles falling at the entrance of the tunnel and causing damage to the window. and add a cover to the whistle. In the later period, when the locomotive was transferred to the warmer climate area, the whistle cover of the locomotive was removed, but some locomotives only removed the icicle cutting plate and retained the whistle cover during car body maintenance. In addition, some EF58 electric locomotives in Hiroshima area are also equipped with front window windows, but the purpose is completely different from that of crossing the line, but it is used as a sunshade.
Under the premise of meeting the design requirements of the building, adding external sunshade panels, awnings and appropriately increasing the pick-out length of the southward balcony can play a certain sunshade effect. Heat-reflecting fabric curtains coated with metal film are arranged on the inside of the window, which has a decorative effect on the front, forming a less mobile space layer about 50mm thick between the glass and the curtains. In this way, a good effect of thermal reflection and thermal insulation can be achieved, but the direct lighting is poor and should be made into a movable type. In addition, installing blinds with certain thermal reflection on the inside of the window can also obtain a certain thermal insulation effect.
The overhead ventilated roof is widely used in hot summer and cold winter areas in China, especially in the hot and rainy summer, which shows its superiority. The principle of the ventilated roof is to set up a ventilation room layer on the roof. On the one hand, the outer layer of the ventilation room layer is used to block the sun, such as a closed or ventilated air room layer, and the sunshade intercepts the sun directly shining on the roof. The radiant heat makes the roof heat transfer twice, avoiding the direct action of solar radiant heat on the enclosure structure, on the other hand, using the effect of wind pressure and hot pressure, especially natural ventilation, the solar radiant heat absorbed by the upper and lower surfaces of the sunshade in contact with the air is transferred to the air with the wind. The greater the wind speed, the more heat the roof takes away, and the better the thermal insulation effect is, the greater the thermal insulation capacity of the roof is. So as to reduce the effect of outdoor heat on the inner surface.
In terms of interior decoration, domestic head enterprises are almost “monopolized” by the Yangtze River Delta. Ningbo Jifeng shares, Huaxiang, Topu Group, Shanghai Yanfeng Automobile, Daimei shares, Jiangsu Xinquan shares and Changshu Auto Decoration cover the one-stop industrial chain from seats, sunshades, dashboards to the entire internal and external decoration system.
Chinese automobile media reporters have tested the special sunshade film affixed to the car window, and the conclusion shows that it does have a certain sunshade and heat insulation effect. However, this kind of sunshade film will seriously reduce the light transmittance, resulting in poor vision at night, so it is not recommended to install the sunshade film on the windshield. Other side windows can be mounted with sunshade film if necessary, although the shading effect is not necessarily obvious, at least it can better protect the privacy of passengers.