INFRARED HEATER

Abstract

An infrared heater having at least three infrared emitters arranged in a housing, wherein a solution is created for suffusing as large a solid angle as possible with infrared radiation, wherein the majority of the infrared radiation is emitted in the direction of the space to be heated, and a costly water cooling of the housing can thereby be avoided. This is achieved in that the housing (3) has a front plate, wherein the infrared emitter is oriented in parallel to the front plate and the infrared emitter is oriented transverse to the front plate, wherein the infrared emitters have a flat emission surface, and the greater portion of the occurring infrared radiation is emitted in the direction of the front plate.

Claims

1. Infrared heater (1) having at least three infrared emitters (2a, 2b, 2c) that are arranged in a housing (3), wherein the housing (3) has a front plate (4), wherein the infrared emitter (2b) is oriented parallel to the front plate (4) and the infrared emitters (2a, 2c) are oriented at a slant relative to the front plate (4), wherein the infrared emitters (2a, 2b, 2c) have a planar emission surface (9) and emit the major portion of the infrared radiation (11) that occurs in the direction of the front plate (4).

2. Infrared heater according to claim 1, wherein the housing (3) has a trapezoid-like layout, wherein the front plate (4) is arranged along the longer base side, and the infrared emitters (2a, 2b, 2c) are arranged on the shorter housing sides.

3. Infrared heater according to claim 1, wherein infrared reflectors (5) are arranged between the housing sides and the infrared emitters (2a, 2b, 2c).

4. Infrared heater according to claim 3, wherein the infrared reflectors (5) are configured as corrugated metal sheets.

5. Infrared heater according to claim 1, wherein the front plate (4) completely absorbs the infrared radiation.

6. Infrared heater according to claim 1, wherein the front plate (4) partially absorbs the infrared radiation.

7. Infrared heater according to claim 1, wherein the front plate (4) is completely permeable for infrared radiation.

8. Infrared heater according to claim 1, wherein the infrared heater (1) has a cycling circuit, which turns the infrared emitters (2a, 2b, 2c) on and off periodically, wherein the period duration can be freely selected.

9. Infrared heater according to claim 1, wherein the infrared heater (1) has a temperature sensor (6) that transmits the room temperature to the infrared heater (1).

10. Infrared heater according to claim 9, wherein the infrared heater (1) has a regulation circuit that keeps the room temperature constant.

11. Infrared heater according to claim 1, wherein the housing (3) has ventilation slits (7).

12. Infrared heater according to claim 1, wherein a temperature regulator (10) is arranged in the housing (3), which regulator regulates the temperature that occurs in the housing (3).

13. Infrared heater according to claim 12, wherein the temperature regulator (10) has a bimetallic switch that interrupts the power supply to the infrared emitters (2a, 2b, 2c) starting from a predefined threshold temperature in the housing interior (8).

14. Infrared heater according to claim 1, wherein the infrared emitters (2a, 2b, 2c) are not turned on for longer than 20 minutes per hour.

15. Infrared heater according to claim 1, wherein the housing (3) has a plastic layer.

16. Use of an infrared heater according to claim 1 in a motor vehicle.

17. Use of an infrared heater according to claim 16, wherein the power supply to the infrared heater occurs by way of a rechargeable battery.

18. Use of an infrared heater according to claim 16, wherein the infrared heater is directed at the windshield of the motor vehicle.

Description

[0023] Nothing was I again put in 2 and 6 Further characteristics, details, and advantages of the invention are evident from the following description and based on the drawings. Objects or elements that correspond to one another are provided with the same reference symbol in all the figures. These show:

[0024] FIG. 1 a top view of an infrared heater according to the invention, wherein the upper housing lid is not shown,

[0025] FIG. 2 a side view of the face side of an infrared heater according to the invention,

[0026] FIG. 3 a top view of an infrared heater according to the invention, having infrared reflectors, wherein the upper housing lid is not shown,

[0027] FIG. 4 a possible arrangement of the infrared heater according to the invention in an example of a living space, and

[0028] FIG. 5 a top view of an infrared heater according to the invention, with a built-in temperature regulator, wherein the upper housing lid is not shown.

[0029] In FIG. 1, an infrared heater 1 according to the invention is shown, which has three infrared emitters 2a, 2b, 2c, a housing 3, and a front plate 4. The housing 3 has a trapezoid-like layout, wherein the housing sides that run toward the longer base side are truncated. The front plate 4 is disposed along the longer base side, and the infrared emitters 2a, 2b, 2c are arranged on the shorter housing sides in the interior of the housing 3. Furthermore, the housing 3 has ventilation slits 7, which are shown as examples in the side view of the face side of the infrared heater 1 in FIG. 2.

[0030] The infrared radiation 11 propagates in the housing interior 8 from the infrared emitters 2a, 2b, 2c, and impacts the front plate 4 primarily at an intersection point, wherein a fraction of this radiation is reflected at the surface of the front plate 4. The arrangement of the infrared emitters 2a, 2b, 2c, and the geometry of the housing 3 lead to the result that this reflected radiation is guided to the front plate 4 once again. In this regard, the use of infrared reflectors 5, which further support this effect, proves to be particularly advantageous. Such a structure is shown in FIG. 3, wherein infrared reflector 5 is arranged between the housing 3 and the infrared emitters 2a, 2b, and 2c. Alternatively, each infrared emitter can be provided with its own infrared reflector 5.

[0031] In FIG. 4, a possible arrangement of the infrared heater 1 according to the invention in an exemplary living space shown. Because of the special geometry of the housing 3, such an infrared heater 1 can be optimally placed in corners of the room. A temperature sensor, which is disposed at any desired location in the room, wirelessly transmits the measured room temperature to the infrared heater 1, which regulates the room temperature using this information.

[0032] Since the radiation from the infrared heater 1 is emitted at a large spatial angle, most of the room walls are heated directly. Room walls that are not situated within the spatial angle of the infrared heater 1 are heated by means of multiple reflection of the beams, since the radiation is not completely absorbed by a single room wall and part is reflected. An isotropic heat distribution in the room occurs due to this effect. Thereby formation of condensation water on cold room walls is prevented, and this in turn prevents the formation of mold, which is hazardous to health.

[0033] In FIG. 5, a top view of an infrared heater 1 according to the invention, having a built-in temperature regulator 10, is shown, wherein the upper housing lid is not shown. In this exemplary embodiment, the temperature regulator 10 is arranged between the infrared heater 2b and the housing 3. Thus the temperature regulator 10 is not heated by the infrared radiation itself, but rather essentially by the heated air in the housing interior 8. It is also conceivable that the temperature regulator 10 is arranged between the housing 3 and one of the other infrared emitters 2a or 2b.

[0034] Of course, the invention is not restricted to the exemplary embodiments shown. Further embodiments are possible without departing from the fundamental idea of the invention. Of course, power cables from the infrared heater to an external power source are provided; these are not shown. Furthermore, batteries, solar systems, photovoltaics or cogeneration units can also be used to supply power. It is preferred that power supply from regenerative energies is used, such as bio-energy, geothermal heat, water power, ocean energy, solar energy, and wind energy. Furthermore, the infrared heater has a suitable holder so that it can be fastened to a room wall, which holder is not shown.

REFERENCE SYMBOL LIST

[0035] 1 infrared heater

[0036] 2a infrared emitter

[0037] 2b infrared emitter

[0038] 2c infrared emitter

[0039] 3 housing

[0040] 4 front plate

[0041] 5 infrared reflector

[0042] 6 temperature sensor

[0043] 7 ventilation slit

[0044] 8 housing interior

[0045] 9 emission surface

[0046] 10 temperature regulator

[0047] 11 infrared radiation