An energy-saving device that automatically adjusts brightness, adjusts heat flow, and shields infrared radiation

Abstract

The invention provides an energy-saving device capable of automatically adjusting brightness and heat flow and shielding infrared radiation. The energy-saving device comprises a bimetallic strip, a support frame, glass and the like. The bimetallic strip is bent at high temperature and blocks sunlight, the sunlight entering an indoor environment is reduced, indoor brightness is reduced, indoor radiation heat gains are reduced, an airflow channel can be formed in the device or a thermal bridge between pieces of the glass is interrupted, and heat transferred from the device to the indoor environment is reduced. The bimetallic strip unbends at medium temperature, blocking of the sunlight is reduced, the sunlight entering the indoor environment is increased, the indoor brightness is improved, the thermal bridge is conducted, and heat transfer coefficients of the device are increased. The bimetallic strip is bent at low temperature and shields infrared radiation from the indoor environment to an outdoor environment, indoor heat dissipation is reduced, the thermal bridge is interrupted, and the heat transfer coefficients of the device are reduced. The device can automatically adjust the indoor brightness and indoor heat gains and shield infrared radiation according to change of solar radiation and outdoor temperature, and energy consumption of daylighting, air conditioning and heating of a building is reduced.

Description

technical field [0001] The invention relates to the fields of solar energy utilization and building energy saving, and can also be applied to fields such as agricultural engineering, and more specifically relates to an energy-saving device that automatically adjusts brightness, adjusts heat flow, and shields infrared radiation. Background technique [0002] The proportion of transparent materials such as glass curtain walls in modern buildings is increasing. The adoption of large-area glass curtain walls increases the artistic design of the building and improves the aesthetics of the building, but it also brings some problems in terms of building lighting and energy consumption. Buildings with large-area glass curtain walls have a large proportion of the external window area to the external wall area, so the building's lighting and air-conditioning heating loads will be greatly affected by the external environment. Generally speaking, in summer and at noon of a day, the sol...

AI Technical Summary

Problems solved by technology

In terms of indoor heat gain, due to the transparency and thermal conductivity of glass and other materials relative to the wall, this makes the building gain too much solar radiation heat during the day, and the building loses a lot of heat through the glass curtain wall at night, which not only increases The design load of air-conditioning and heating of the building is increased, which increases the installed capacity of the building's refrigeration and air-conditioning equipment and increases the investment. Moreover, due to the large fluctuation of the building load, the power consumption of the equipment fluctuates greatly, which increases the impact on the power grid.

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