DE202005015303U1 - Facade element has transparent layer with inner hollow cavities forming heat carrier fluid circuit in which a substance is mixed to shade the incoming light - Google Patents

Abstract

The facade element comprises a transparent layer such as a double glazed window with inner hollow cavities through which a heat carrier fluid is moved in circuit. A substance is mixed in with the fluid to shade the incoming light. The substance in the fluid can be particles removed from a dispersion. The light-absorbing substance can be a pigment with magnetic and/or metal and/or decorative properties. The control circuit for regulating the incoming amount of light can comprise a combination of heat and light sensors as well as a pump, permanent magnet and static mixer.

Description

The The invention relates to a device as used on facades of buildings heat-budgetary and / or light protection and / or decorative purposes can be.

• – Funktionen des Energie- und Wärmehaushalts,
• – Schutzfunktionen gegen Witterung,
• – Schutzfunktionen für die Vertrauenssphäre,
• – Funktionen, die dem Erhalt und Bestand des Gebäudes dienen,
• – Funktionen, die die Betriebskosten des Gebäudes betreffen und
• – andere, weiter unten angesprochene Funktionen.

In construction technology, various methods are used to give a building an outward-looking impression; depending on the financial strength of the client, the impression may be more or less representative and decorative. Functional elements are added to the decorative elements; In particular, the following functions are meant:

• - functions of the energy and heat budget,
• - protection against weather,
• - protection functions for the sphere of protection,
• - functions that serve to preserve and maintain the building,
• - Functions that affect the operating costs of the building and
• - Other functions discussed below.

State of technology

To the State of the art belong thermal insulating Plastic coatings - mostly on the outer skin of the building attached - to the heat transfer coefficient to lower a house.

Versus the effects of weather be facades with protective Wood, stone and granite cladding provide only a few options call.

For preservation to become a building Wall and wall techniques, protective coatings, insulating materials, Beschich lines and many other methods according to the state the technique used.

A enjoys special significance in connection with these tasks the function of the windows. To the Protection of the sphere of trust become in their use in the house and building technology the insight into the interior preventing devices used: e.g. blinds, Curtains, Shutters, Outside- and interior blinds, etc. By thermo-insulating double glazing with or without external blinds However, the energy transfer coefficient is only insufficiently reduced.

That's why, among other things, the utility model beats DE 297 10 564 U1 fluid flowed solar panel - blinds in front. However, this proposal seems maintenance, construction and cost-intensive.

adversely in it the circumstance appears that only with the use of blinds, roller blinds and the like the insight in workshops, Office or living rooms etc. can be avoided.

From the utility model DE 299 17 487 U1 a device for influencing the light transmittance of glazings is known, characterized thereby that the glazing has a cavity and a liquid or gaseous medium of predetermined translucency as well as a conveying system for filling / emptying the cavity as required with the medium.

Indeed lacks a concrete proposal for cost-effective in this document Realization of such devices, nor a solution to the problem different lighting conditions during the day and night. In addition, the necessary for this appears Ventilation system for one Loading and emptying consuming and error-prone.

This problem is (better) solved with an older patent application by introducing particles specifically into the space between the glazings:
From the Scriptures DE 43 44 990 A1 is an arrangement for computer-controlled, local and temporal limited manipulation of hue, intensity and the energy transmission to transparent objects, including façade elements known. In this arrangement, certain particles are reversibly bound in a gap-shaped device by defined variable electromagnetically and / or electrostatically effective forces to certain surface areas and / or space regions of the gap space.

adversely appears in this document, the high technical effort, the Creation of such devices is required and not harmless properties of the necessary electrostatic - insulating acting carrier fluids.

task of the present utility model it is therefore necessary to present a system that the above mentioned requirements for translucent facade elements advantageous united and the disadvantages of the state described in the two documents bypassing technology.

The object of the utility model described herein is achieved by a device consisting of a conventional double-glazed window arrangement, additionally characterized in that they fill the interior de structure consists of subdivisions, such that the liquid flows through a channel system that passes between the two plane-parallel glass surfaces, thereby backwash the entire glass surface completely.

In front the entry of the liquid in the channel system just described there is the possibility of particles to supply controlled or remove.

there controls a control circuit, fed from signals of a heat and / or Light sensor the particle concentration.

The used liquid provides in an advantageous embodiment of the utility model a Heat transfer fluid represents the heat absorbed by sunlight through a heat exchanger to a heat reservoir gives off and thus for domestic water heating and simultaneous cooling of the recirculated liquid serves.

The used particles have in an advantageous embodiment a high thermal conductivity such as metals.

In a particularly advantageous embodiment of the facade element of the utility model, the cavity structure is formed so that when looking through through the transparent parts of the device in all spatial directions a largely uniform refractive index is ensured.

A further advantageous embodiment is the special construction of the cavity casing in the mold, that beside the requirement for the uniformity of the above-described space-angle-dependent refractive index, one possible unhindered river of liquid guaranteed is done by dead spaces be avoided, in which accumulate accumulations of particles.

to Further description of the utility model, the following embodiments attached with attached drawings:

1 shows a facade element according to the invention, consisting of plane-parallel glass plates 1 , Which in its interspace an inventive piping system 2 contains for receiving the carrier liquid with and / without functional particles. The connectors 3 are used for the closed execution of the piping, which cause the transport of the liquid through the entire pipe system with.

2 shows the facade element according to the invention 4 with the function-accompanying periphery. That's where the tube is 5 from a pump 6 fed with the carrier liquid passing through the static mixer 7 is passed to sufficiently mix the particles with the carrier liquid. The feeding of the particles is done via a reservoir 1.8 , which also fulfills the function to separate the particles again from the carrier liquid flow, depending on which signals the control device 9 over the control line 10 sends. 2.8 is the heat exchanger that dissipates the heating of the heat transfer fluid.

3 shows a detailed description of the cavity structure 11 ; in cross-section can be seen a triangular the flow of the carrier liquid enabling structure 12 through the connectors 3 in one here with one 13 Designated flow direction are shown only schematically indicated embodiment.

1

Double glass device

2

pipe

3

joint

4

facade element

5

supply pipe

6

pump

7

static mixer

1.8

particle

2.8

heat exchangers

8th

Light- and / or thermal sensor with control

9

control

10

control line

11

Cavity structure, plane parallel plates

12

triangular, the Flow of the carrier fluid

enabling structure

13

Flow direction of the connectors 3 (please refer 1 )

Claims (10)

Façade element, characterized in that it consists of a transparent layer, which is traversed by cavities in which a heat transfer fluid is circulated to which a substance can be added, which simultaneously causes a darkening of the incident light. Façade element, characterized in that it is made a transparent layer, which is traversed by voids is in which a heat transfer fluid led in a circle becomes, in front of which a controllable darkening is installed. Façade element, characterized in that the of cavities traversed device as possible turbulence-free flow of Heat transfer fluid allowed. Facade element, characterized in that the material causing the darkening can be selectively metered in and removed again from the circulating flow of the heat transfer fluid via a control circuit. Façade element, characterized in that the substance in the heat transfer fluid a particle of an order of magnitude is that a little or at all no tendency to settle shows. Façade element, characterized in that the of cavities solidified device when looking through all spatial directions a uniform refractive index shows. Façade element, characterized in that a conventional Double glazing device made inexpensively and easily can be made by dividing the interior filling structure of subdivisions is built, such that the liquid a channel system flows through, that between the two plane-parallel glass surfaces passes, around the entire glass surface Completely to backwash. Façade element, characterized in that the substance in the heat transfer fluid a particle that is simple, targeted and completely out of the Dispersion removed and can be fed again, in the example metallic particles are used. Façade element, characterized in that the absorbent Substance in the heat transfer fluid a pigment with magnetic and / or metallic and / or decorative Properties is. Facade element, characterized in that the Control circuit used to control the amount of incident light from a combination of heat and light sensors as well as pump, permanent magnet and static mixer consists.