Movable external sunshade blinds and hollow glass external window with built-in sunshade blinds

Abstract

The invention discloses building external sunshade blinds. The blinds comprise a plurality of blades, a pulling rope, a ladder rope and a control device, wherein the ladder rope comprises a left vertical ladder rope, a right vertical ladder rope and horizontal ladder ropes; second magnet pieces are arranged on lower surfaces of left ends of the blades, first magnet pieces are arranged on upper surfaces of the right ends, and the first magnet pieces attract the second magnet pieces in the blades located above the first magnet pieces when the blades are inclined; an electromagnet piece is fixedly mounted at the joint where the right vertical ladder rope is connected with each horizontal ladder rope; inclined positions of the blades at least comprise a first inclined position and a third inclined position, and the electromagnet pieces are used for introducing current to generate a repulsive magnetic field to push the right ends of the blades to move leftward, so that the blades move fromthe first inclined position to the third inclined position, or an attractive magnetic field is generated to pull the right ends of the blades to move rightward, and the blades are moved from the thirdinclined position to the first inclined position. The blinds are simple in structure, and the shielding property of the blinds can be effectively improved.

Description

technical field [0001] The invention relates to the field of building sunshade and exterior windows, in particular to a movable sunshade louver system and a built-in sunshade louver hollow glass exterior window. Background technique [0002] In the southern part of my country, due to the high energy consumption of building cooling caused by solar radiation in summer, power cuts in summer have become the norm, seriously affecting people's lives and social and economic development. Setting movable external shading or movable central shading on the external windows of buildings can effectively reduce the energy consumption of air conditioning in summer. At present, more and more construction projects are equipped with external windows with shading devices. The movable external sunshade venetian blind is the most widely used sunshade product in the movable external sunshade system. It has dual functions of sunshade and dimming. The built-in sunshade louver hollow glass is the mo...

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Problems solved by technology

[0003] But at present, whether it is the movable external sunshade venetian blind or the built-in sunshade louver hollow glass, its shielding performance is poor, and the heat insulation performance is average. This is because the existing venetian blinds use ladder ropes to control the inclination of the louvers, and the louvers are in the full sunshade position. When the louvers are closed, the degree of closure between the louvers is generally between 65° and 70°. More scattered sunlight enters the room, and the shading is poor, which reduces the heat insulation effect of the product. The louver system with poor shading performance makes the sunshade The effect is reduced by more than 30%

[0004] In order to improve the shielding performance of venetian blinds, the patent No. ZL201210554094.2, titled "A movable sunshade louver system for building exterior windows" discloses a movable sunshade louver system for building exterior windows. An L-shaped positioning piece is fixedly installed at the node to increase the inclination of the venetian blinds. Although the shielding performance of the venetian blind is effectively improved, the thickness of the L-shaped positioning piece will increase when the ladder rope is folded, which will affect the aesthetics. The technology is only suitable for S-shaped louvers. For the most widely used single-arc louvers, there is no technology to improve the shielding performance

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