INFRARED HEATER

Abstract

An infrared heater having a reflector body that includes a first and a second planar reflection section for arranging one infrared radiator in each case and a reflector opening opposite the reflection sections. In order to provide an infrared heater that allows for controlled emission of heat, the reflection sections extend in planes with respect to a first longitudinal axis, which planes are oriented so as to be inclined in relation to one another and which each extend at different inclinations in relation to an opening plane that is oriented in parallel with the first longitudinal axis and that is spanned by the reflector opening.

Claims

1. An infrared heater having a reflector body which comprises a first and a second planar reflection section for arranging an infrared radiator in each case and a reflector opening lying opposite the reflection sections, wherein the reflection sections extend in planes, which planes are oriented so as to be inclined in relation to one another with respect to a first longitudinal axis and which each extend at different inclinations in relation to an opening plane that is oriented in parallel with the first longitudinal axis and that is spanned by the reflector opening.

2. The infrared heater according to claim 1, characterized by at least one third and fourth reflection section, which are each inclined with respect to a second longitudinal axis that is perpendicular to the first longitudinal axis in relation to the opening plane.

3. The infrared heater according to claim 2, wherein the third and fourth reflection section are inclined at symmetrical angles to the opening plane with respect to the second longitudinal axis.

4. The infrared heater according to claim 1, wherein the reflector body is arranged in a housing comprising a housing opening and a housing rear wall.

5. The infrared heater according to claim 4, wherein the reflector body is spaced apart from the housing rear wall.

6. The infrared heater according to claim 4, characterized by a front panel which covers the reflector opening and the housing opening of the housing.

7. The infrared heater according to claim 6, wherein the front panel comprises at least one opening.

8. The infrared heater according to claim 1, wherein at least one reflection section, or all reflection sections, comprise a profiled reflection surface at least in sections.

9. The infrared heater according to claim 1, wherein the reflector body is formed of one piece as a sheet metal body.

10. The infrared heater according to claim 1, wherein at least one temperature sensor is arranged at the reflector body.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Exemplary embodiments of the invention are set out in more detail below with reference to the drawings. They are not intended to limit the invention, but rather merely to explain it. In the drawings:

[0026] FIG. 1 is a front view of an infrared heater having four infrared heaters;

[0027] FIG. 2 is a cross section of the infrared heater shown in FIG. 1, along a second longitudinal axis.

[0028] FIG. 3 is a front view of a sheet metal body;

[0029] FIG. 4 is a perspective view of a housing;

[0030] FIG. 5 is a front view of a front panel with perforations.

DETAILED DESCRIPTION OF EMBODIMENTS

[0031] An embodiment of an infrared heater 1 shown in a front view in FIG. 1 comprises a reflector body 2 having four planar reflection sections 3a, 3b, 3c, 3d, wherein four infrared radiators 5 are arranged at the four reflection sections 3a, 3b, 3c, 3d. The reflector body 2 is formed in one piece from a metal sheet. The reflection sections 3a, 3b, 3c, 3d have a profiled reflection surface (not shown here). Opposite the reflection sections 3a, 3b, 3c, 3d, the reflector body 2 comprises a reflector opening 4, wherein the reflector opening 4 spans an opening plane OE.

[0032] The first reflection section 3a extends in a first plane E1, whereas the second reflection section 3b extends in a second plane E2, and therefore said reflection sections extend so as to be inclined in relation to one another (cf. FIG. 2). The first reflection section 3a lying in the first plane E1 and the second reflection section 3b lying in the second plane E2 are inclined at different angles to a first longitudinal axis LA1 with respect to the opening plane OE, wherein the first reflection section 3a is inclined at an angle of 150° to the opening plane and the second reflection section 3b is inclined at an angle of 164° to the opening plane. Therefore, the infrared radiators 5 arranged on the first and second reflection section 3a, 3b are also arranged so as to be inclined accordingly.

[0033] The third and fourth reflection section 3c, 3d are inclined at symmetrical angles to a second longitudinal axis LA2 that is perpendicular to the first longitudinal axis LA1 with respect to the opening plane OE (cf. FIG. 1).

[0034] The reflector body 2 is formed from a sheet metal body 15 punched from a planar metal sheet (cf. FIG. 3). Folds 13 and incisions 16 are provided in the planar sheet metal body 15 in order to manufacture the shell-shaped reflector body 2 by means of bends along the folds 13. Furthermore, the reflector body 2 comprises cable openings 14.

[0035] In order to protect the reflector body 2 against external influences, the reflector body 2 is arranged in a housing 6 (cf. FIG. 2 and FIG. 4). The housing 6 comprises a housing opening 7 and a housing rear wall 8. The reflector body 2 is arranged at a distance from the housing rear wall 8, as a result of which a cavity 9 is formed between them. Insulating material (not shown here) for insulation and a cable channel 12 are accommodated in the cavity 9.

[0036] Furthermore, two temperature sensors are arranged on the reflector body 2 in order to monitor the operating temperature of the infrared heater 1 (not shown here).

[0037] In order to protect the reflector body 2 against external influences, a front panel 10 is arranged on the housing opening 7 of the housing 6 to cover the reflector opening 4 (cf. FIG. 5). The front panel 10 is made of metal and comprises openings in the form of perforations 11 in order to prevent the infrared heater 1 from overheating.