JPH0135437Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a heat source lamp device mainly applied to tabletop stoves and other heating cookers.

(Prior Art) Conventionally, as this type of device, a type in which a halogen lamp or other powerful heat source lamp is installed horizontally in a lamp casing is known.

(Problem to be solved by the invention) However, in this case, the end of the lamp is generally of a type that extends outward through the side wall of the casing, and in such a lamp, there is a slight difference in the insertion point. This is accompanied by the inconvenience that a gap is created in both cases, and heat and light tend to leak to the outside through the hole.

(Means for Solving the Problems) The object of the present invention is to obtain a device free from such inconveniences, that is, a device in which the above-mentioned gaps are well sealed and there is no leakage of heat or light. In the case of a type in which a halogen lamp or other powerful heat source lamp is horizontally installed inside the casing, a U-shaped groove opening upward is formed in the side wall of the casing, and the vicinity of the end of the lamp is inserted into this. A flexible packing is inserted into and out of the groove, and surrounds the lamp in the groove to airtightly close the gap on the outer periphery of the lamp and the space above the remaining space in the groove. It is made by applying.

(Example) Embodiments of the present invention will be explained with reference to attached drawings.

In the drawings, reference numeral 1 indicates a lamp casing, and a halogen lamp 2 is placed horizontally within the casing 1 to form a strong heat source as a whole, and this point is not particularly different from the conventional one. The lamp 2 has a tungsten wire 2a stretched inside, a sealing part 2b at its outer end, and a molybdenum foil 2c and a terminal 2d outside thereof. It is not particularly different from the conventional one.

According to the present invention, on the side wall 3 of the casing 1,
A U-shaped through groove 4 that opens upward is formed into which the lamp 2 is inserted in the vicinity of its end so that it can be freely inserted and removed, for example, as shown clearly in FIG. A gap 4a surrounding the lamp 2 in the groove 4 and a gap 4a on the outer periphery of the groove 4, and a transparent groove 4 extending above the gap 4a.
A flexible packing 5 made of rubber or other material is applied to airtightly close the remaining upper space 4b inside.

The packing 5 is, for example, as clearly shown in FIG. 3, and has a shape that fits airtightly into the through groove 4 as a whole, and has a through groove 5a in the lower part of which the lamp 2 is inserted airtightly, and a through groove 5a in the lower part thereof. The lamp 2 is placed in the through groove 5a.
A lower notch 5b is provided for guiding.

The packing 5 is not limited to this, but may include, for example, a cylindrical lower half 5c surrounding the lamp 2 as shown in the fourth figure, and an upper half that fits into the space above the cylindrical half formed in the through groove 4. It is also possible to use a model that is pre-divided into both halves of 5d.

(Function) To explain its function, the U-shaped transparent groove 4 is formed between the gap 4a on the outer periphery of the lamp 2 and the remaining upper space 4.
The molybdenum foil 2c inside the sealing part 2b at the end of the lamp 2 is the same as the conventional molybdenum foil 2c. On the contrary, cooling tends to increase the lifespan.

(Effect of the invention) As described above, according to the present invention, the lamp is inserted into the U-shaped through groove formed in the side wall of the lamp casing, and the gap around the outer periphery of the lamp in the through groove and the remainder thereof are This provides flexible packing that airtightly closes the upper space, making it easy to attach and detach the lamp, and the insertion point is well sealed to prevent light and heat from leaking to the outside. The thermal efficiency of the lamp can be improved, and the life of the lamp can be increased by cooling the molybdenum foil at the end of the lamp, and the overall effect is relatively simple and inexpensive.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the main parts of an example of the proposed device;
The figure is a perspective view with the packing removed, FIG. 3 is a perspective view of the packing, and FIG. 4 is a perspective view of a modified example of the packing. 1... Lamp casing, 2... Halogen lamp, 3... Side wall, 4... Permeable groove, 4a... Gap on outer periphery, 4b... Upper space, 5... Packing.

Claims (1)

[Scope of utility model registration request] In a type of lamp in which a halogen lamp or other powerful heat source lamp is installed horizontally in a lamp casing, a U-shaped groove opening upward is formed in the side wall of the casing, and the end of the lamp is placed in this groove. A flexible lamp is inserted into and out of the vicinity of the groove, and surrounds the lamp within the groove to airtightly close the gap on the outer periphery and the space above the remainder of the groove. A heat source lamp device made of packing.