JPH064555Y2 - Socket device for baseless lamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention is a socket for mounting a baseless lamp used for meter display and lighting of automobiles, AV equipment, etc. on a printed circuit board in these equipment. It relates to the structure of the device.

(Prior Art) Various types of socket devices for baseless lamps have been developed and known. For example, the socket shown in Japanese Patent Publication No. 62-17833 is
A circular flange is provided on the bottom of the socket body having a light bulb mounting hole, and the printed circuit board is sandwiched between the flange and a locking projection provided separately. Then, the lead wire of the light bulb led out from the insertion hole on the bottom surface of the main body is wound around the groove formed in the flange and locked, and the lead wire extending above the flange is used as a terminal to electrically connect to the conductive portion of the printed circuit board. I make a physical connection. Also, the actual public 5
In JP-A-8-5324, a socket body is formed of an elastic member such as rubber, a bulb insertion hole and a lead wire insertion hole are provided, and the lead wire insertion hole is inserted into a power supply terminal to hold the socket and make electrical connection. I try to tighten it.

(Problems to be solved by the invention) However, in the former socket device, when the lead wire of the light bulb is locked in the plurality of grooves provided in the brim portion,
Since the lead wire is bent many times and the bending direction is not constant, it is difficult to automate the process of assembling the light bulb into the socket, making it difficult to reduce the cost of the socket. When multiple socket devices are mounted adjacent to each other on a printed circuit board, etc., it is difficult to reduce the size of equipment due to the restriction of the space size because there is a collar with a uniform outer diameter around the socket body. It was When the socket needs to be attached to and detached from the printed circuit board using a jig or a tool such as a screwdriver, or when there is no space on the back side of the printed circuit board, the work is difficult to perform.

Also, the latter socket device requires a power supply terminal that is set up, and when mounting a printed circuit board, it is necessary to provide a protruding terminal on the circuit board, which is bulky when storing or transporting the printed circuit board. In addition, after mounting the socket device, the socket device protrudes from the substrate and the device cannot be downsized.

The present invention has been made in view of the above, and an object of the present invention is to provide a socket device which can easily perform wiring processing and installation work of a lead wire led out from a lamp and can reduce the installation space. .

[Constitution of device]

(Means for Solving the Problems) The present invention provides a socket body made of an electrically insulating material having a bottomed lamp mounting hole, a first collar portion extending from the outer wall of the socket body to both sides of the body, and A second collar portion is provided on one outer side of the main body so as to be opposed to the first collar portion with a predetermined gap and substantially parallel to each other, and is provided at a tip portion of the first or second collar portion. Lamp having a locking projection and a lamp that is mounted in the lamp mounting hole and has lead wires extending to the inner surfaces of the first and second flange portions that are opposed to each other. It is a socket device.

(Operation) According to the present invention, the first brim portion and the second brim portion extending substantially parallel to each other from the socket body constitute a nipping portion, and a lead wire is disposed in the nipping portion and the brim portion is provided. Is provided with a locking projection. The socket device can be firmly and surely attached to the printed circuit board by sandwiching the sandwiching portion on the printed circuit board and further engaging the locking projection with the insertion hole. Further, the lead wire of the lamp led out into the holding portion can be surely brought into contact with the conductive portion of the printed circuit board. Also, the attaching and detaching work can be performed easily because the socket can be locked by fitting and sliding without using a special jig or the like.

(Embodiment) The present invention will be described below based on a first embodiment shown in FIGS. 1 to 6.

In the figure, (S) is a socket device made of an electrically insulating material such as synthetic resin or rubber, and this socket device (S) is a socket body having an insertion hole (2) for a lamp (L) such as a baseless bulb. Have (1). From the lower outer wall of this body (1) to the body
The first brim portions (3a), (3
Similarly to b), the second flange portion (4) is installed in parallel with the first flange portion (3a) from one side of the outer wall with a predetermined gap.
Are formed, and the first brim portion (3a) and the second brim portion are formed.
A sandwiching portion (5) is configured with (4). (6) is a locking projection provided on the first collar portion (3b). Also (7)
Is a lead wire insertion hole that penetrates the bottom wall of the body (1), (8a), (8
b) and (8c) are lead wire guide grooves formed continuously from the bottom face to the side face to the top face of the collar portion (3a). The above guide groove
The depth of (8C) is arranged so that the lead wire (L1) protrudes from the upper surface of the flange portion at about half the diameter of the lead wire to ensure electrical connection with a printed circuit board described later. further,
(P) is a printed circuit board, and (P1) is a socket insertion hole having substantially the same shape as the upper surface of the socket device (S).

Next, the assembling of the socket device (S) having the above configuration and the mounting on the printed circuit board (P) will be described. First, insert a pair of lead wires (L1) (almost only one can be seen in the figure) extended in a substantially straight shape into the lead wire insertion holes (7), (7) formed in the bottom of the socket body (1) and Insert the lamp (L) into the hole (2)
Install inside. Next, the lead wire (L1) led out from the insertion hole (7) is bent along the corner of the first collar part (3a) and is inserted into the guide grooves (8a), (8b), (8c). Extend it. At this time, the tip of the lead wire (L1) is placed in the guide groove (8c) or at a position where it does not short-circuit with other lead wires that have passed through the guide groove (8c). Assembly of is completed.

Next, the lamp (L) side of the socket device (S) is cut out in the same shape as the lamp (L) side, and the mounting hole (P)
Pass it through 1) and move the socket device (S) to the left in FIG. By this movement, as shown in FIG. 6,
Holding part (5) between the first brim part (3a) and the second brim part (4)
Sandwiches the printed circuit board (P) and the first brim (3b)
The upper locking projection (6) is abutted and locked to the edge of the mounting hole (P1),
The socket device (S) can be easily attached to the printed circuit board (P). Then, the lead wire (L) extending on the first collar portion (3a)
The lamp (L) is lit by contacting the conductive foil portion (not shown) formed on the printed circuit board (P) surface with 1).

To remove the socket device (S) from the printed circuit board (P), press the first flange portion (3b) from above in FIG. 6 so that the locking projection (6) is attached to the printed circuit board (P). When it comes off the inner edge of the hole (P1), push the second collar (4) to the right to expose the upper part of the socket body (1) to the mounting hole (P1), and then attach the socket device (S). It can be done by pushing from above.

Further, FIGS. 7 to 12 show another embodiment, and the same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. The second embodiment shown in FIGS. 7 and 8 is different from the first embodiment in that the first collar portions (3a) and (3b) have lamp mounting holes.
Since the second flange portion (4) is formed on the opening side of (2) and on the lower side, the same operational effect as that of the first embodiment is obtained.

Further, FIGS. 9 and 10 show the third embodiment, and the parts different from the first embodiment are that the engaging projections (6) are the first brim parts.
It is provided on the (3a) side, and FIGS. 11 and 12 show the embodiment of FIG. 4, and the portion different from the second embodiment is that the engaging projection (6) has the first brim portion. It is provided on the (3a) side. The printed circuit board (P) is provided with a locking hole (P2) into which the locking projection (6) is fitted. The holding force of the socket device (S) can be improved because it is locked so as to be hugged.

The present invention is not limited to the above-described embodiment. For example, the number of locking projections is not limited to one, and it may be provided in a plurality of collars, and the shape of the first and second collars may be square or rectangular. The shape is not limited to a cannonball shape, and may be a shape depending on the form used. Further, the lead wire guide groove formed in the socket device is not essential and may be a groove or notch partially formed so that the lead wire can be guided. Further, the lamp mounted on the socket device of the present invention is not limited to the baseless bulb and may be a discharge lamp or the like, and one socket device may be mounted with a plurality of lamps. Furthermore, a plurality of socket devices may be mounted in one mounting hole of the printed board.

[Effect of device]

As described in detail above, the present invention provides a first collar portion extending from the outer wall of the socket body to both sides of the body, and a predetermined gap between the first collar portion and an outer side of the body. And a second flange portion that is installed substantially parallel to each other, a locking protrusion provided at the tip of the first or second flange portion, and a lead wire that is mounted in the lamp mounting hole and that has the pair of lead wires. A socket device for a baseless lamp, comprising: a lamp extending to the inner surfaces of the first and second flanges that are provided. With such a configuration, the socket device can be mounted if there is a gap corresponding to the thickness of the collar portion on the back surface of the printed circuit board. Also, the mounting work can be performed firmly and reliably by mounting a part of the socket device in the printed circuit board mounting hole and further moving it laterally, and vibration resistance can be improved. Also, a large number of socket devices can be mounted adjacent to the printed circuit board, and the printed circuit board can be miniaturized. The shape of the socket mounting hole of the printed circuit board is simplified and the manufacturing cost of the circuit board can be reduced. When assembling the lamp to the socket body, the lead wire of the lamp is bent only in the straight direction, so the assembly work is simplified, the process is easily automated, and the cost is reduced. A socket device can be provided.

[Brief description of drawings]

1 to 4 show a socket device according to a first embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a top view, FIG. 3 is a bottom view, and FIG. Front sectional views taken along the line VI-VI, FIGS. 5 to 12 show the relationship between the socket device of the present invention and the printed circuit board, and FIGS. 5 and 6 are perspective views of the first embodiment. Figures and front sectional views, FIGS. 7 and 8 are perspective views and front sectional views of the second embodiment, and FIGS. 9 and 10 are perspective views and front sectional views of the third embodiment. Fig. 12 and Fig. 4
2 is a perspective view and a front sectional view of the embodiment of FIG. (S) ... Socket device, (5) ... Holding part, (1) ... Socket body, (6) ... Locking protrusion, (2) ... Lamp mounting hole, (L) ... Lamp, (3a), (3b) ) ... first brim, (L ₁ ) ... lead wire, (4) ... second brim, (P) ... printed circuit board,

Claims (1)

[Scope of utility model registration request] 1. A socket body made of an electrically insulating material having a bottomed lamp mounting hole, first flange portions extending from the outer wall of the socket body to both sides of the body, and one side outside the body. A second brim portion that is opposed to the first brim portion with a predetermined gap and is substantially parallel to the first brim portion; and a locking projection provided at the tip of the first or second brim portion, A socket device for a baseless lamp, comprising: a lamp that is mounted in the lamp mounting hole and has a lead wire that extends to a sandwiching portion between the first and second flange portions that face each other.