Radiant heater

Abstract

To provide a radiant heater that can efficiently transfer radiant heat to the part to be heated. [Solution] The radiant heaters 1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, and 1h are mounted on a vehicle 10 and comprise heater elements 40 arranged to form a virtual surface V, and a cover member 30 positioned to cover the heater elements 40. The cover member 30 has a plurality of through holes, and at least a portion of the plurality of through holes are inclined through holes 31a whose inner surface is inclined with respect to the direction normal to the virtual surface V.

Claims

1. A radiant heater mounted on a vehicle, Heater elements arranged to form a virtual surface, The system comprises a cover member arranged to cover the heater element, The cover member has a plurality of through holes, At least some of the plurality of through holes are inclined through holes in which the inner surface is inclined with respect to the direction normal to the virtual surface. Radiant heater.

2. As you move away from the central portion of the cover member, the inclination angle of the central axis of two or more of the multiple through holes with respect to the normal direction increases. The radiant heater according to claim 1.

3. The two or more inclined through holes have inner surfaces that are inclined along the normal direction extending from the central portion. The radiant heater according to claim 2.

4. The normal direction extending from the central portion includes a predetermined focal point. The two or more inclined through holes are inclined toward the predetermined focal point. The radiant heater according to claim 3.

5. The predetermined focal point is set according to the position of the cover member, the position of the heater element, and the inclination angle of the inclined through hole. The radiant heater according to claim 4.

6. The predetermined focal point is set such that the distance from the cover member to the predetermined focal point is longer than the distance from the cover member to the wall surface forming the vehicle's passenger compartment, which is positioned opposite the cover member. The radiant heater according to claim 4 or 5.

7. The plurality of through holes have two or more inclined through holes, The outer surface area of ​​the virtual surface formed by the heater element is larger than the outer surface area of ​​the region in which the two or more inclined through holes are formed. A radiant heater according to any one of claims 1 to 5.

8. Furthermore, the cover member is provided with a lens positioned on the heater element side, which focuses the infrared rays emitted by the heater element to the predetermined focal point. The radiant heater according to claim 4 or 5.

9. The heater element is arranged in a curved manner. A radiant heater according to any one of claims 1 to 5.

10. The cover member is curved. A radiant heater according to any one of claims 1 to 5.

11. In the cover member, the thickness is locally changed according to the inclination angle of the central axis of the inclined through hole with respect to the normal direction. A radiant heater according to any one of claims 1 to 5.

12. The cover member gradually increases in thickness as it approaches the center. The radiant heater according to claim 11.

13. The cover member includes a first cover member having a first slit formed along a first direction, and a second cover member superimposed on the first cover member and having a second slit formed along a second direction perpendicular to the first direction. The first slit and the second slit are inclined through holes whose inner surfaces are inclined with respect to the direction normal to the virtual surface. A radiant heater according to any one of claims 1 to 5.

14. The plurality of through holes have two or more inclined through holes, Furthermore, it includes a case that houses the heater element and supports the cover member, A gap is formed between the cover member and the case. A radiant heater according to any one of claims 1 to 5.

15. The plurality of through holes have two or more inclined through holes, The cover member has a communication hole formed therein that extends from the inclined through hole located on the outer edge of the cover member toward the outer edge of the cover member. A radiant heater according to any one of claims 1 to 5.

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