JPS5832276Y2 - display device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a display device in a vehicle, and more specifically, it mainly relates to parts related to safety during driving,
This invention relates to a display device for a vehicle that centrally displays the presence or absence of a functional failure or abnormality in one place and allows the driver to check it while sitting.

Many display devices with this type of structure have been proposed in the past, and one of the most widely known is a display device 1 shown in FIG.

That is, what is indicated by the reference numeral 2 in the figure is a printed circuit board, and a copper foil circuit (
(not shown) are printed and wired.

Reference numeral 3 denotes a resistor mounted on the printed circuit board 2, and when assembling this resistor 3 on the printed circuit board 2, the lead wire 31 is first inserted into a hole provided at a predetermined position on the printed circuit board 2. After both ends 31a of the lead wire 31 were fixed to the back surface 2a of the printed circuit board 2 with solder 4, the lead wire 31 was cut into a predetermined length.

Reference numeral 5 denotes a socket that is detachably attached to the peripheral edge of the socket mounting hole 2b of the printed circuit board 2 and holds a baseless metal light bulb 6; At this time, a terminal (not shown) fixed therein comes into contact with the copper foil circuit of the printed circuit board 2, thereby establishing electrical continuity with the printed circuit board 2.

The conventional display device 1 has the above structure,
With such a structure, both ends 3 of the lead wire 31
When cutting 1 a to a predetermined length, both ends 31 a
is so-called a knife-like shape, so when inserting the baseless metal bulb 6 into the display device 1 or replacing the baseless metal bulb 6, the blade located near the socket mounting hole 2b of the printed circuit board 2 Both ends 31 a of the lead wire 31
This has the disadvantage of causing injury to hands etc.

Further, since the copper foil circuit of the printed circuit board 2 is exposed to the outside, the copper foil circuit may come into contact with the copper foil circuit when inserting or replacing the bare metal bulb 6, for example, and as a result, the copper foil circuit of the printed circuit board 2 may come into contact with the printed circuit board. There was a problem that poor conduction occurred between the substrate 2 and the substrate 2.

The purpose of the present invention was made in view of the above-mentioned drawbacks, and it is possible to safely assemble or replace light bulbs by providing a cover having a hole through which a socket is passed at a predetermined distance behind a printed circuit board. Moreover, it is an object of the present invention to provide a display device that prevents poor conduction between a light bulb and a printed circuit board.

Hereinafter, details of the present invention will be explained using examples shown in the drawings.

FIG. 2 is a cross-sectional view of the essential parts of an embodiment of the display device according to the present invention. In the figure, the reference numeral 7 indicates a printed circuit board fixed to the back surface of the display device main body 131. 7 has a copper foil circuit (not shown) printed and wired on its back surface 7a, and a lead wire insertion hole (not shown) is bored at a predetermined position.

8 is a resistor mounted on the printed circuit board 7, and after both ends 81a of the lead wire 81 of this resistor 8 are inserted into the lead wire insertion hole, solder 9 is applied to the back surface 7a of the printed circuit board 7. is fixed by.

Further, 10 is a socket mounting hole 7b of the printed circuit board 7.
A socket made of synthetic resin is detachably attached to the periphery of the socket 10, and a pair of terminals (not shown) are housed inside the socket 10, and the baseless metal bulb 11 is held between the terminals. .

Further, the external connector of the terminal is guided onto the flange portion 101, and comes into contact with the copper foil circuit of the printed circuit board 7 when the socket 10 is mounted on the peripheral edge of the socket mounting hole 7b, thereby making it silent. Gold light bulb 11 and printed circuit board 7
It provides electrical continuity between the two.

Reference numeral 12 denotes a cover disposed behind the printed circuit board 7 at a predetermined distance.
A boss portion 121 consisting of 1b and 1b is integrally provided,
The narrow diameter portion 121b is a hole (
(not shown), and its tip 121C is caulked on the component insertion side of the printed circuit board 7.

As a result, the cover 12 is fixed to the printed circuit board 7.

Further, a predetermined distance is maintained between the cover 12 and the printed circuit board 7 by the large diameter portion 121a.

Furthermore, 122 is a socket mounting hole 7b of the printed circuit board 7.
This hole 122 is formed to have a diameter somewhat larger than the diameter of the flange portion 101 of the socket 10 so that the socket 10 can be inserted easily.

Therefore, with the structure in which the cover 12 is provided as described above, when inserting the capless metal bulb 11 into the display device 13 or replacing the capless metal bulb 11, both ends 81 a of the lead wire 81 are removed. Since there is no risk of damage to hands or the like due to the contact with the copper foil circuit of the printed circuit board 7, poor conduction between the printed circuit board 7 and the baseless metal bulb 11 is also prevented. .

In addition, FIG. 3 shows a display device 13 of another embodiment. In this display device 13, a caulking boss portion 131b is provided on a stepped portion 131a of a display device main body 131, and the printed circuit board 7 is secured by this boss portion 131b. Display device main body 13
1, and the cover 12 is fixed to the display device main body 1.
It is fitted and fixed into a hole (not shown) provided in the rear end portion 131C of 31.

Of course, even with such a structure, effects equivalent to those of the above-mentioned embodiment can be obtained.

Further, the display device 13 in FIG. 4 has a cover 12 mounted on a rear end portion 131C of a display device main body 131, and the engaging claw 123 of the cover 12 is fitted into an engaging groove 131d of the rear end portion 131C. By engaging the display device main body 131
The printed circuit board 7 is firmly clamped and held by the protrusion 124 of the cover 12 and the protrusion 131e provided inside the rear end 131C.

Furthermore, FIG. 5 shows a display device 13 having a structure in which a cover 12 is integrally provided on a display device main body 131.

It goes without saying that even with the above structure, effects equivalent to those of the above-mentioned embodiments can be obtained.

In the above-described embodiment, the resistor 8 is used as an electronic component mounted on the printed circuit board 7, but it is needless to say that the electronic component is not limited to this.

As explained above, the display device according to the present invention has a structure in which a cover is provided at a predetermined distance behind the printed circuit board and has a hole through which a socket is passed.
Unlike in the past, the ends of the lead wires of electronic components are not directly exposed to the outside, so when inserting a light bulb into a display device or replacing a light bulb, the ends of the lead wires do not injure your hands or the like. In addition, it has various practical effects such as being able to reliably eliminate the problem of poor conduction between the printed circuit board and the light bulb due to hands or the like coming into contact with the copper foil circuit of the printed circuit board. .

[Brief Description of the Drawings] Fig. 1 is a partial sectional view of a conventional display device, Fig. 2 is a sectional view of essential parts showing an embodiment of the display device according to the present invention, and Figs. FIG. 6 is a cross-sectional view of a main part showing other embodiments of a display device according to the present invention. 7... Printed circuit board, 8... Resistor,
10...Socket, 12...Cover,
122...hole, 13...display device, 1
31...Display device main body.

Claims (1)

[Scope of utility model registration request] A cover having a printed circuit board on which electronic components are mounted and a socket removably attached is fixed to the back of a display device main body, and has a hole spaced apart from the printed circuit board at a predetermined distance and through which the socket is passed. A display device characterized by being provided with.