Radiant heater device

Abstract

To provide a radiant heater device that can simplify its structure. [Solution] The radiant heater devices 1, 1a, 1b, and 1c each include a flat heater element 40 having a heating region A1 on which a heater wire 42 that generates heat when energized is arranged, and an edge region A2 formed to surround the heating region A1; a case 20 that houses the heater element 40; and a frame-shaped support portion 46 arranged along the inner edge of the case 20 so as to form a space K between the bottom surface 21 of the case 20 and the heater element 40, wherein the support portion 46 is arranged to overlap with the edge region A2.

Claims

1. A flat plate-shaped heater element having a heating region where a heating element that generates heat when an electric current is applied is arranged, and an edge region formed to surround the heating region, A case for housing the heater element, The case comprises a frame-shaped support portion arranged along the inner edge of the case so as to form a space between the bottom surface of the case and the heater element, The support portion is positioned to overlap with the edge region. Radiant heater device.

2. The aforementioned edge region is a non-heating region where the heating element is not located. The radiant heater device according to claim 1.

3. The support portion is sandwiched between the heater element and the bottom surface of the case. The radiant heater device according to claim 1.

4. Furthermore, it includes a heat insulating material disposed between the heater element and the support portion. The radiant heater device according to claim 1.

5. The heater element comprises a sheet-shaped substrate and the heating element disposed on the substrate. Furthermore, it includes a low-emissivity member with a lower infrared emissivity than the aforementioned substrate, The low-emissivity member is positioned on the bottom surface of the case in the base material. The radiant heater device according to claim 3.

6. The heater element comprises a sheet-shaped substrate and the heating element disposed on the substrate. Furthermore, it includes a low-emissivity member with a lower infrared emissivity than the aforementioned thermal insulation material, The low emissivity member is positioned on the bottom surface of the case in the thermal insulation material. The radiant heater device according to claim 4.

7. The low-emissivity member is a member containing aluminum. The radiant heater device according to claim 5 or 6.

8. The low-emissivity member is positioned only in the portion of the support that is in contact with the space. The radiant heater device according to claim 5 or 6.

9. The heater element has a plurality of heating regions, The multiple heating elements forming the multiple heating regions are connected in parallel, A predetermined gap is formed between two adjacent heating elements among the plurality of heating elements. The support portion comprises a frame body positioned along the inner edge of the case and a middle rail positioned to correspond to the predetermined interval. A radiant heater device according to any one of claims 1 to 6.

10. The heater element has a bridging portion that extends toward a control unit for controlling the heater element, The number of the bridging sections is equal to or greater than the number of the intermediate crossbars. The radiant heater device according to claim 9.

11. The heater element has a plurality of heating regions, The multiple heating elements forming the multiple heating regions are connected in series, A predetermined gap is formed between two adjacent heating elements among the plurality of heating elements. The support portion comprises a frame body arranged along the inner edge of the case and a middle rail arranged to correspond to the predetermined interval. The intermediate crossbar that overlaps with the heating element has a groove formed therein that is separated from the heating element. A radiant heater device according to any one of claims 1 to 6.

12. The support portion has a pattern forming portion formed according to the pattern shape of the heating element that is in contact with the edge region. A radiant heater device according to any one of claims 1 to 6.

13. The heating element has a wave-shaped heater pattern forming portion, The support portion has a wave-shaped pattern forming portion that corresponds to the wave-shaped heater pattern forming portion of the heating element. The radiant heater device according to claim 12.

14. The support portion is fixed to the case by a fastening member. A radiant heater device according to any one of claims 1 to 6.

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