JPS5923626Y2 - Cigarette lighter mounting structure - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mounting structure for a cigarette lighter, and in particular serves both as heat dissipation for the cigarette lighter and as reinforcement for the instrument panel to which the cigarette lighter is attached.

Generally, a cigarette lighter is attached to the instrument panel in front of the driver's seat of an automobile along with various gauges.

This cigarette lighter is easy to handle, and since it gets hot when in use, it is installed in such a way that it has good heat dissipation.

Conventionally, such a cigarette lighter has been installed using a mounting hole 2 at a predetermined location on the instrument panel 1, as shown in Fig. 1.
Insert the lighter body 4 of the cigarette lighter 3 into this mounting hole 2 from the driver's seat side, and then insert the flange 4 of the lighter body 4 into the mounting hole 2.
A is brought into contact with the periphery of the mounting hole 2, and a bowl-shaped heat dissipation plate 5 with a large surface area with openings at the front and rear is inserted through the lighter body 4 and brought into contact with the inner surface of the instrument panel 1. 4 from the insertion end side, and screw the threaded part 6a formed at the rear of this cylinder 6 into the threaded part 4b of the lighter main body 4, and then attach the tip of the cylinder 6 to the heat dissipation plate 5. The instrument panel 1 and the heat sink 5 are mounted by being pressed against the inner surface of the front end and sandwiched between the flange 4a of the lighter body 4 and the tip of the cylindrical body 6 attached to the lighter body 4.

Note that 7 in the figure is a reinforcing member provided on the inner surface of the instrument panel 1 along the vehicle width direction.

In the above mounting structure, the flange 4a of the lighter main body 4 and the cylindrical body 6
between the instrument panel 1 and the heat sink 5
Since the instrument panel 1 is only mounted by sandwiching it, and it is supported by a cantilever, the mounting condition is unstable.Since the instrument panel 1 is also a flat plate, its rigidity is relatively low. There is a drawback that the lighter body 4 and the heat sink 5 become unstable due to bending or deformation.

Furthermore, in order to improve the heat dissipation performance of the heat sink 5, it is necessary to increase its surface area.If the heat sink 5 is made large, the load will be concentrated on the front end clamping part, which may cause rattling or damage to the instrument panel. However, the heat dissipation plate 5 could not be made large, resulting in poor heat dissipation performance.

In view of the above-mentioned drawbacks of the conventional technology, this invention has been improved and eliminated by extending a portion of the heat sink along the instrument panel and connecting it to the instrument panel.

The configuration of this invention will be explained below according to embodiments shown in the drawings.

In Figures 2 and 3, 8 is the instrument panel, 9 is a mounting hole formed at a predetermined location on the instrument panel 8, and 10 is a cigarette lighter lighter inserted into the mounting hole 8 from the driver's seat side. It is a single main body, and its flange 10a is brought into contact with the periphery of the mounting hole 9.

11 is a heat sink made of sheet metal into which the lighter body 10 is inserted;
Reference numeral 12 denotes a mounting plate that covers the outer periphery of the lighter body from the insertion end side, screws a threaded portion 12a formed at the rear part into the threaded portion 10b of the lighter body 10, and presses the tip against the heat sink 11. It is a cylinder.

The heat sink 11 has upper and lower ends connected to the instrument panel 8.
The mounting arm 1 is formed by extending along the upper end and making the upper end thinner.
1 a, with a wider bottom and legs 1 on both sides of the bottom.
1B and 11C, and both side edges are bent at right angles to create a highly rigid cross-sectional shape.

A reinforcing member 13 is provided with an upper end mounting arm 11 a on the inner surface of the instrument panel 8 along the vehicle width direction.
They are inserted into the interior through the notch 14, overlapped, and joined together by spot welding or the like, and the lower leg portions 11b and IIC are screwed to the boss portions 15a and 15b formed on the inner surface of the instrument 8.

Note that a space 16 is formed between the instrument panel 8 and the heat sink 11 to improve heat radiation efficiency and prevent direct heat conduction to the instrument panel.

With the above configuration, the lighter body 10 has a flange 10
The instrument panel and the heat sink 11 are clamped and fixed by the tip of the cylindrical body 12 attached to the lighter body 10 and the upper and lower ends of the heat sink 11 are connected to the instrument panel 8. , heat sink 11
serves as a reinforcing member for the instrument panel 8, which increases the rigidity of the instrument panel 8 and prevents the instrument panel 8 from wobbling due to running vibrations and from bending or deforming even when a large load is applied when using a lighter. .

Further, the heat sink 11 is connected to the flange 10a of the lighter body and the cylinder body 1.
2, but also connected to the instrument panel 8, so the load of the heat sink 11 is received by the instrument panel, and is not concentrated on the clamping part, and is used to support the lighter body 10. Since no influence is exerted, the shape of the heat radiating plate 11 can be made larger, the heat radiating area becomes larger, the heat radiating performance is improved, and the influence of heat on the instrument panel 8 can also be prevented.

As explained above, this idea is to sandwich the instrument panel and heat sink between the flange of the lighter body inserted into the opening of the instrument panel and the tip of the cylinder attached to the outer periphery of the lighter body. At the same time, a part of the heat sink is formed as an extension and is integrally connected to the instrument panel, so the heat sink can be used both for heat dissipation of the cigarette lighter and for reinforcing the instrument panel. Even when supported in a cantilever manner by the part and the cylinder, the instrument panel has high rigidity, and the lighter body does not wobble when the lighter is used.

Furthermore, since the heat sink is connected to the instrument panel, its shape can be increased and the heat radiation area becomes larger, so that the heat radiation effect is greatly improved and the influence of heat on the instrument panel can be prevented.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a conventional cigarette lighter mounting structure, Fig. 2 is a sectional view showing a cigarette lighter mounting structure according to the present invention, and Fig. 3 is a perspective view from the back side showing the mounting state of a heat sink. It is a diagram. 8. Instrument panel, 9. Mounting hole, 10.
・Lighter main body, 10a...flange, 11...heat sink,
1la-・Mounting arm, 11b, 11C-・Legs, 1
2. Cylindrical body.

Claims (1)

[Scope of utility model registration request] The instrument panel and heat sink are sandwiched between the flange of the lighter body inserted into the opening of the instrument panel and the tip of the cylindrical body attached to the outer periphery of the lighter body. A cigarette lighter mounting structure characterized by having an extended section integrally connected to an instrument panel.