JP2586834Y2 - Ventilation equipment in car lights - Google Patents

Description

[Detailed description of the invention]

[0001]

FIELD OF THE INVENTION This invention relates to automotive lights such as headlights or auxiliary lights.

[0002]

[Background of the Invention] Especially in a vehicle light such as a fog lamp, when it is turned on, it generates a high heat, and for this reason and when this is repeatedly performed, heats the air in the vehicle light, and thus the inner wall of the vehicle light. This causes water droplets (so-called dew condensation) to be generated, and this dew causes the automobile lamp itself and various electric components in the automobile lamp to be corroded.

[0003]

2. Description of the Related Art Conventionally, the insertion opening of a lead wire for energizing a bulb in an automobile light is relatively large, and heat exchange between the air inside the automobile light and the outside air is performed from this insertion opening to form dew condensation. Was trying to prevent outbreaks.
However, rainwater is particularly easy to be transmitted through a lead wire at the time of precipitation, so that there is a drawback that rainwater enters the vehicle light from the above-mentioned insertion port and performs the same rot effect as described above.

[0004]

The object of the present invention is to prevent the so-called dew condensation from occurring in a vehicle light in a state where the insertion opening of the lead wire is completely closed, that is, in a state where rainwater does not enter at all.

[0005]

[Features of the present invention] A ventilating device for a vehicle light according to the present invention includes a vehicle light body (A) having a built-in bulb.
A through hole (10) provided at the rear end thereof;
And a porous film (9) that allows air to permeate but does not allow rainwater to permeate, and has a gap (13) that communicates slightly with the outside air, and covers the through hole (10) and the film (9). And a packing member (3) interposed between the cap body (3) and the film (9) and made of a resilient material whose outer end communicates with the outside air. 8).

Even if the bulb is turned on or this operation is repeated, the outside air enters the packing member (8) through the gap (13) of the cap body (3) and further passes through the film (9) to the main body. (A) penetrates into the body (A)
The air inside is released to the outside air, contrary to the above. In other words, since heat exchange is performed so that the inside of the main body (A) and the outside air maintain the same temperature, the occurrence of so-called dew condensation can be prevented.

Even if rainwater enters through the gap (13) of the cap body (3) and moves toward the main body (A), its progress is prevented by the presence of the packing member (8). ), The film (9) is made of a material that allows air to permeate but does not allow rainwater to permeate, so that the rainwater does not permeate into the main body (A) and is incorporated in the main body (A). This can increase the durability of the electrical component.

Further, since the film (9) is subjected to the back pressure of the packing member (8) made of an elastic material, there is no danger that the film (9) will swing out and permeate rainwater. Further, the film (9) needs to be replaced. In this case, the cap body (3) and the packing member (8) are simply removed and replaced with a new one, and the work is easy.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, (A) is an auxiliary light main body of an automobile such as a fog lamp, and (B) is a mounting plate on which the auxiliary light main body (A) is rotatably pivoted. (B) is usually attached to the lower side of the bumper (C) of the automobile by appropriate means such as tacking. (D) is an auxiliary light (B) not shown.
This is a connection that electrically connects the valve inside and the power supply.

In FIG. 2, (1) is a pedestal protruding rearward in a vertical groove provided at the rear end of the main body of the auxiliary light (A), and a through hole (10) is formed at the center thereof. A plurality of vault holes (4) are formed horizontally in the circumferential direction on the outside. (3) is a cap body having one side abutting with the pedestal and being screwed and fastened with a vault (5) through which the vault hole (4) can be inserted. belongs to.

(9) is a porous disc-shaped film that allows air to permeate but does not allow water droplets to permeate, and is provided along the outer end surface of the through hole (10) of the pedestal (1). In this case, as shown in FIG. 1, the cylindrical body (6) may be protruded slightly outward from the periphery of the through hole (10), and may be attached to the outer end thereof. Also, (8) has a through-hole (11) in the center of the packing member having a convex cross section and is made of a relatively soft material such as synthetic rubber.
0), and the outer end is brought into contact with the inner surface of the cap body (3).

In this case, the film (10) is interposed between one concave portion of the convex packing member (8) and the outer end surface of the cylindrical body (6) to prevent the film (10) from swinging. In order to prevent this, the inner end of the packing member (8) is formed with an annular groove (7) in the pedestal.
When this is fitted, the swinging of the packing member (8) can also be prevented.

Furthermore, if the outer end of the packing member (8) is brought into contact with a ridge (12) projecting from the inner surface of the cap body (3), the cap (3) is assisted by the vault (5). When fixing the lamp body (A), the cap body (3) is strongly pressed in the direction of the film (9), and the movement of the packing member (8) and the film (9) is further suppressed.

Thus, a bulb (not shown) in the auxiliary lamp main body (A) is turned on, and the inside of the main body (A) emits high heat. By this operation and this repeated operation, the air in the main body (A) is repeatedly heated and cooled, which causes dew condensation in the auxiliary light (1). However, according to the present invention, when the bulbs are turned on or are repeatedly performed, the outside air flows through the small gap of the cap body (3) through the packing member (8), the film (9), the cylindrical body (10), and the pedestal (1). ), And enters the auxiliary light body (A), and the reverse air flow is generated. As a result, so-called "condensation" does not occur in the auxiliary light (1).

The gap (1) of the cap body (3)
Even if rainwater infiltrates into the cap body (3) from step 3), the rainwater can be prevented from going into the auxiliary light body (A) by the interposition of the packing member (8), and the temporary rainwater can be prevented from flowing into the film member (9). The film member (9) is made of a material that allows only air to pass through and prevents rainwater from entering, even if the film member faces in the direction (1), so that rainwater does not enter the auxiliary light body.

[Brief description of the drawings]

FIG. 1 is a side view of an auxiliary light main body.

FIG. 2 is a longitudinal sectional side view in which a rear part of an auxiliary light body is cut and enlarged.

[Explanation of symbols]

 A car light body 3 cap body 8 packing member 9 porous film 10 through hole 13 gap

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 1-161503 (JP, U) Japanese Utility Model 3-126303 (JP, U) Japanese Utility Model 1-161507 (JP, U) Japanese Utility Model Sho 63- 153409 (JP, U) JP 5-62909 (JP, U) JP 1-165504 (JP, U) JP 2-146703 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) F21M 7/00 F21Q 1/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A vehicle light body (A) having a built-in bulb, wherein a through hole (10) provided at a rear end thereof;
A porous film (9) is provided along the through hole (10) and allows air to permeate but does not allow rainwater to pass therethrough, and has a gap (13) that slightly communicates with the outside air.
0) and a cap body (3) fixed to the main body (A) so as to cover the film (9), and an elasticity interposed between the cap body (3) and the film (9) and having an outer end connected to the outside air. Ventilation device for automobile light, comprising packing member (8) made of conductive material