CN88201883U

CN88201883U - Reflecting louvered curtain

Info

Publication number: CN88201883U
Application number: CN 88201883
Authority: CN
Inventors: 陈存; 陈应生; 丘陵; 何建文
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 1988-03-17
Filing date: 1988-03-17
Publication date: 1988-12-21

Abstract

The utility model relates to a reflecting louvered curtain which is suitable for various buildings. The utility model is characterized in that an aluminium film or other reflecting materials are stuck on the surface of louvres of a mobile type or a fixed type ordinary louvered curtain which is made of plastics, bamboo or wood, achieving energy saving effects of shielding sun and heat insulating in summer and heat preserving in winter. Meanwhile, the reflecting louvered curtain has the advantages of easy use, easy manufacture, low price and fine quality.

Description

Reflecting louvered curtain

The utility model belongs to building heat-energy engineering discipline technical field of solar.

Summer, indoor extremely hot one of the main reasons was the solar radiation heat that enters by window.Particularly modern style of building trends towards openly, and the building of opening large windows is more and more, and the contradiction of indoor overheating becomes increasingly conspicuous.At present extensively the way that adopts is to hang tentiform curtain (bamboo, cloth, suede or other), and its shortcoming is: for sunshade, must put down curtain daytime, and this not only makes indoor dim, again overslaugh indoor natural ventilating, make indoor sultry aggravation.And even put down curtain, but sunlight has heated curtain, still heat has been passed to indoor (by measuring, common green cloth curtain is when sunshine, and internal surface temperature can reach more than 45 ℃), and has made the people that tangible scorching hot sense of discomfort be arranged.For above-mentioned reasons, air-conditioned room has promptly been used the door curtain made of cloth, even the suede curtain, air-conditioning still expends a large amount of electric energy, the operating cost costliness.

In order to overcome the above-mentioned various shortcoming and defect that existing curtain exists, we have developed the reflection sun blind.It is characterized in that enclosing thin or other reflecting material of layer of aluminum in the louvre surface of common sun blind such as plastics, bamboo and wood (movable or fixed), utilize aluminium height thin or other reflecting material to reflect, hang down the performance that absorbs, particularly big thermal characteristics (to the reflectivity of sunlight up to more than 80%) to the sunshine reflectance factor, directly sunlight reflected is returned outdoor (can also reflect away across glass), prevented in the heat inlet chamber at sunshine.The reflecting surface of reflection sun blind can be that single face also can be two-sided.For example: the inventor once enclosed layer of aluminum thin (referring to accompanying drawing 1) on the recessed surface of the cambered surface blade of movable sun blind, and the thin reflection of the aluminium of development sun blind are compared test determination at the ward of two south-north directions of hospital of South China Science ﹠ Engineering University.Though be subjected to condition restriction, big (7.7 * 3.4 * 3.05 meters of selected room spaces ³), the well-ventilated (east, south, the north to three windows, 2.45 * 1.95 meters of each windows ²), the duration of sunshine is short, but from the result that measures as can be seen: under solar radiation, common door curtain made of cloth internal surface temperature sharply rises (1), reaches as high as 44.8 ℃, also can be up to 70～80KCal/m to human body radiation intensity ²H, standing has strong baking sense before window; And temperature T≤33.3 of the thin reflection of aluminium sun blind inner surface ℃, to human body radiation intensity≤23KCal/m ²H, standing before window and standing is as good as in indoor other places, and ventilative functional, makes the people feel comfortable.(2) in whole comparative determination process, all the temperature than No. 2 wards of dossal curtain is low to some extent for No. 1 ward hanging the thin reflection of aluminium sun blind, and effect of heat insulation of these explanation reflection sun blind is more significant.If little in the space, improper ventilation, the house that the duration of sunshine is long, effect of heat insulation will be more obvious.

The utility model--the advantage of reflection sun blind is: (one) can not shut out the light when putting down curtain, and natural ventilation is good.Because it is outdoor that it can directly return sunlight reflected, just completely cut off most of solar irradiation heat, prevents indoor overheating.The border is measured factually, adopts the utility model---the thin reflection of aluminium sun blind, and room temperature is reduced more than 1～2 ℃, be of great value this hot summer to southern area.Simultaneously, reflection sun blind internal surface temperature is not high, makes indoor before the window not have scorching hot sense of discomfort yet; (2) because aluminium is thin or the special reflecting function of other reflecting material, daytime in winter can the adjusting activity angle of reflection louver lamina, make sunlight reflected arrive indoor a certain place (as ceiling), so not only guaranteed in the solar radiation energy inlet chamber but also avoided dazzle, can also be with solar ray collecting to fixing local, utilize ergastic substances that it is stored, so that use for heating of house night.Close the reflection sun blind night in winter, because the thermal emissivity of external surface reflecting material is very low, just reduce by the outside dispersed heat of reflection sun blind, so it is not only the good equipment of sunshading and heat-insulating in summer, also be the heat-preserving equipment in winter; (3) therefore the winter insulation owing to the summer solar heat protection has obvious energy-saving effect.Simultaneously it is cheap, and for example, aluminium approaches every square metre of several maos of, adds the manufacturing processing charges, about five yuan of every square metre of.Its base material can be used materials such as plastics, bamboo and wood in addition, inner surface also can be made various colors, is convenient to cooperate indoor color, and this just makes the utility model make, easy to use, attractive and durable, be to be worth promoting and to be suitable for the new-type curtain of extensive commodity production.

Accompanying drawing 1 is the reflection louver lamina.Wherein: 1, be curtain base-material blade; 2, be thin or other reflecting material of aluminium.

Claims

1, the reflection sun blind of a kind of movable or fixed plastics, bamboo and wood material is characterized in that reflecting the louver lamina surface and enclose thin or other reflecting material of layer of aluminum.

2, reflection sun blind according to claim 1, the reflecting surface that it is characterized in that the sun blind leaf can be that single face also can be two-sided, and the recessed surface of the cambered surface blade of sun blind is enclosed layer of aluminum and approached.