Pane arrangement having an electrically heatable baffle plate
A pane arrangement having an electrically heatable baffle plate is described. The pane arrangement has a pane having an enclosure on the inner side of the pane, a radiation receiver and/or a radiation source facing the pane within the enclosure such that a beam path of electromagnetic radiation passes through a predefined region of the pane, a baffle plate arranged within the enclosure and below the beam path, and an electrically heatable area in the baffle plate heating the region.
1. A pane arrangement having an electrically heatable baffle plate, comprising at least:
a pane with an enclosure on the inner side of the pane,
a radiation receiver and/or a radiation source, which is/are turned toward the pane within the enclosure such that a beam path of electromagnetic radiation passes through a predefined region of the pane,
a baffle plate, which is arranged within the enclosure and below the beam path, and
an electrically heatable area in the baffle plate that emits thermal radiation and heats the predefined region only by the thermal radiation.
2. The pane arrangement according to claim 1 , wherein the radiation receiver contains a camera or a light-sensitive sensor for infrared, visible, and/or ultraviolet electromagnetic radiation.
3. The pane arrangement according to claim 1 , wherein the radiation source contains an incandescent bulb or a light-emitting diode for infrared, visible, and/or ultraviolet electromagnetic radiation.
4. The pane arrangement according to claim 1 , wherein the baffle plate contains, or is made of, a metal.
5. The pane arrangement according to claim 1 , wherein the baffle plate has thermal conductivity of more than 80 W/(m K).
6. The pane arrangement according to claim 1 , wherein the baffle plate has, at an edge of the electrically heatable area, an electrical heating element, and wherein the electrically heatable area is heatable by thermal conduction.
7. The pane arrangement according to claim 1 , wherein the predefined region and the electrically heatable area have each a substantially planar shape, and wherein an angle between a plane defining the predefined region and a plane defining the electrically heatable area is from 5° to 65°.
8. The pane arrangement according to claim 1 , wherein the region has transparency for electromagnetic radiation of >60%.
9. The pane arrangement according to claim 1 , wherein the electrically heatable area has a heating output of 0.5 W/dm 2 to 10 W/dm 2 .
10. The pane arrangement according to claim 1 , wherein the baffle plate has a patterning on the side turned toward the beam path.
11. The pane arrangement according to claim 1 , wherein the pane contains glass, polymers, and/or mixtures thereof.
12. The pane arrangement according to claim 1 , wherein the pane is of a substantially rectangular shape, and wherein the enclosure is arranged in an edge region of the pane between a center of the pane and an edge of the pane.
13. The pane arrangement according to claim 1 , wherein the baffle plate has thermal conductivity of more than 190 W/(m K).
14. The pane arrangement according to claim 1 , wherein the baffle plate has thermal conductivity of more than 300 W/(m K).
15. The pane arrangement according to claim 6 , wherein the electrical heating element comprises a heating cartridge.
16. The pane arrangement according to claim 1 , wherein the predefined region and the electrically heatable area have each a substantially planar shape, and wherein an angle between a plane defining the predefined region and a plane defining the electrically heatable area is from 10° to 45°.
17. The pane arrangement according to claim 1 , wherein the region has transparency for electromagnetic radiation of >70%.
18. The pane arrangement according to claim 1 , wherein the region has transparency for electromagnetic radiation of >90%.
19. The pane arrangement according to claim 4 , wherein the metal comprises one or more of aluminum, copper, spring bronze, and steel.
20. The pane arrangement according to claim 4 , wherein the metal comprises black anodized aluminum.
21. The pane arrangement according to claim 1 , wherein the pane comprises at least one of flat glass, float glass, quartz glass, borosilicate glass, and soda lime glass.
22. The pane arrangement according to claim 1 , wherein the pane comprises polymethyl methacrylate.
23. The pane arrangement according to claim 10 , wherein the patterning of the baffle plate is a fluting or a zigzag or wave-shaped form.
24. A pane arrangement having an electrically heatable baffle plate, comprising at least:
a pane with an enclosure on the inner side of the pane,
a radiation receiver and/or a radiation source, which is/are turned toward the pane within the enclosure such that a beam path of electromagnetic radiation passes through a predefined region of the pane,
a baffle plate, which is arranged within the enclosure and below the beam path, and
an electrically heatable area in the baffle plate, which heats the predefined region,
wherein the baffle plate has, at an edge of the electrically heatable area, an electrical heating element, and wherein the electrically heatable area is heatable by thermal conduction.
25. A method for producing the pane arrangement having an electrically heatable baffle plate according to claim 1 , comprising:
arranging the radiation receiver and/or the radiation source in the enclosure,
arranging the baffle plate in the enclosure, and
fastening the enclosure on the predefined region of the pane,
wherein the beam path of the radiation receiver and/or the radiation source runs between the pane and the baffle plate.
26. A method comprising:
using the pane arrangement having an electrically heatable baffle plate according to claim 1 in motor vehicles, ships, airplanes, and helicopters, as a windshield and/or a rear window of a motor vehicle.