Protected infrared wall panel heating with flexible heating fabric

Abstract

Infrared wall panel heating with flexible heating fabric, in which a glass thread fabric is provided as the heating fabric, into which carbon threads are woven as the heating element and metallic electrical conductors, the metallic electrical conductors lying transversely to the carbon threads at both ends of the heating element and firmly looping around the carbon threads, and the heating element being electrically protected on both sides in each case by a layer of insulating foil. The wall panel heater is characterized in that at least two further layers of insulating foil and an additional layer of fleece and fabric are provided on both sides in each case for, in particular, mechanical protection of the heating element. The heater can thus be installed on a wall with direct connection to the local power supply network, in particular under plaster.

Claims

1. Infrared wall panel heater with flexible heating fabric, in which a glass thread fabric is provided as the heating fabric, into which carbon threads are woven as a heating element and metallic electrical conductors, the metallic electrical conductors lying transversely to the carbon threads at both ends of the heating element and firmly looping around the carbon threads, and the heating element being electrically protected on both sides in each case by a layer of insulating foil, wherein at least two further layers of insulating layers and an additional layer of fleece and fabric are provided on both sides in each case for the mechanical protection of the heating element.

2. Infrared wall panel heater according to claim 1, wherein the heating element is directly connected to a power source of 230/110 V and is installed on a wall.

3. Infrared wall panel heater according to claim 1, wherein the carbon filaments consist of almost 100% carbon.

4. Infrared wall panel heater according to claim 1, wherein the heating element radiates in the range of a wave-length of 10 μm.

5. Infrared wall panel heater according to claim 1, wherein the layer is made of a hard material, wherein the hard material is ceramic, mirror, plastic or granite.

6. Infrared wall panel heater according to claim 5, wherein the heating element is directly connected to a power source of 230/110 V and is installed on a wall.

7. Infrared wall panel heater according to claim 5, wherein the heating element is directly connected to a power source of 230/110 V and is installed on a wall under plaster.

8. Infrared wall panel heater according to claim 5, wherein the carbon filaments consist of almost 100% carbon.

9. Infrared wall panel heater according to claim 5, wherein the heating element radiates in the range of a wave-length of 10 μm.

10. Infrared wall panel heater according to claim 4, wherein the heating element is directly connected to a power source of 230/110 V and is installed on a wall.

11. Infrared wall panel heater according to claim 4, wherein the heating element is directly connected to a power source of 230/110 V and is installed on a wall under plaster.

12. Infrared wall panel heater according to claim 4, wherein the carbon filaments consist of almost 100% carbon.

13. Infrared wall panel heater according to claim 1, wherein the heating element is directly connected to a power source of 230/110 V and is installed on a wall under plaster.

Description

[0033] The invention will now be explained in more detail by means of an example of an embodiment. The single FIGURE shows the construction (a section) of an infrared wall panel heater.

[0034] The heater preferably consists of four main levels, one above the other, of which the upper level and the lower level are insulation levels 3, 5 and the middle level is a heating element level 4. The insulation levels 3, 5 are not shown in more detail. However, preferably 1, 2, 3 or more layers of insulation foil or fabric or fleece can be arranged in each of these.

[0035] In the heating element plane 4, a glass fiber fabric can be used as the base material, into which carbon threads can be woven. Transversely to these carbon threads, metallic electrical conductors in the form of metal threads can be woven into the glass fiber fabric, preferably on both sides. In this case, the metal threads preferably wrap tightly around the carbon threads. The metal threads are preferably connected at connection points with connecting leads, to which a connector plug 6 can be connected. A voltage of preferably 230 V or 110 V is supplied to the heating element via this plug. The metal threads, the carbon threads and the glass thread fabric are so loosely constructed that total failure damage by nails etc. is not possible.

[0036] When the wall panel heating is switched on, the infrared radiation can be emitted immediately afterwards at an angle of preferably 180° and heating to 60° C. takes place within less than five minutes because the wall panel heating has only a small storage mass. Typically, the work surface temperature is 65-70° C. The heat is radiated in the range of a wavelength of 8-10 μm. This provides the best conditions for heat absorption and comfort. The user feels the pleasant radiant heat almost immediately.

[0037] Air inclusions, localized voltage peaks and fluctuations in the heating power are ruled out, as is burning through of the flexible infrared wall panel heating and bubble formation on the surface. Shrinkage of the heating fabric cannot occur because glass threads are used as the base fabric.

[0038] Such a wall surface heating element typically has a size of only 1-1.4.sup.m2 and a weight of less than 1 kg. It can be attached to a wall 1 as an image, for example glued or hung. However, it can also fill the entire wall and thus form only one panel.

[0039] Preferably, it can be provided that the wall panel heating according to the invention has a surface area of up to 2 m×0.65 m, yet preferably has a power consumption which is as low as commercially available panel heaters with half the surface area (e.g. only 630 watts).

[0040] The wall panel heating according to the invention can also be plastered into the wall without spacers or can be attached to the wall with various cover materials (especially fabric). A wall panel heating system that is provided without spacing from the wall is not yet known. In this way, it can be achieved in particular that the heating radiates only to the front without convection (or convection arm).

[0041] Preferably, this is achieved in particular by using thin carbon fibres (preferably between 20 and 75 tex, preferably less than 75 tex). The carbon fibres can have a particular robustness.

[0042] Furthermore, a number of silver threads may be incorporated into the fabric of the 3,4 and/or 5 layer, the proportion of which to the total number of fibres in the layer is provided in the range of 5-20%.

[0043] For a full-surface radiation of heat radiation, it can be provided that (large)-area heating field(s) of heating conductors are arranged, which are divided into 2, 3, 4, 5 or more tracks. This can be beneficial for improved heat distribution.

[0044] A flexible foil is preferred, which can be provided as electrically safe, in particular as an insulator. This enables, for example, transformer-free operation of the wall heating at, for example, 240 V/110 V.

[0045] The effect of the advantages according to the invention is, for example, that it is possible to attach directly to the wall and/or larger areas with a heat requirement of, for example, up to 20 Watt/m.sup.2 in new buildings and 40 Watt/m.sup.2 in old buildings are less feasible.