JP2573142Y2 - Wedge base valve socket - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket for a wedge base bulb used in a lighting device for an automobile, and more particularly to a socket for connecting to a flat wire such as an FPC (flexible printed circuit). In addition, the shape of the terminal mounted on the socket body is improved, and deformation of the side wall of the socket body due to heating or the like during lighting is suppressed, thereby preventing the occurrence of poor connection.

[0002]

2. Description of the Related Art Heretofore, this type of FPC wedge base valve socket has the structure shown in FIGS. 8 to 11, and a pair of insulating resin socket body 1 formed by bending a thin metal plate. A terminal 2 is attached to the socket body 1 from the valve mounting opening 1a side. Socket body 1
Slits 1d, notched in opposite side walls 1b, 1c of
1e, FPC contacts 2a of terminals 2
2a is connected to a conductive path of the FPC 3 installed on the outer peripheral portion of the socket body 1, and the valve contacts 2b, 2b of the terminals 2, 2 are inserted through the valve mounting opening 1a of the socket body 1 (FIG. 1). Are electrically connected.

More specifically, the socket body 1 is provided with an outer wall portion 1g protruding in a substantially rectangular tube shape from a central portion of a flat flange portion 1f provided on a portion to be mounted, and a front end opening of the outer wall portion 1g is formed. A pair of terminals 2, 2 and a valve are inserted from the valve mounting port 1a and mounted.

Slits 1d, 1e for inserting FPC contacts in the vertical direction from the upper end opening on the valve mounting opening 1a side of the upper end opening to the lower end are cut out on side walls 1b, 1c on the opposite short side of the outer side wall 1g. Accordingly, the outer wall 1g is divided into two walls 1g-1 and 1g-2 each having an L-shaped cross section. In addition, an inner wall 1h is protruded from the flange 1f with an air gap along the lower inner side of the outer wall 1g.
Terminal holding portion 1 between outer wall portion 1g and inner wall portion 1h
i, 1i.

A pair of terminals 2 mounted on the socket body 1 has a substantially L-shaped horizontal section as shown in FIG.
The wide first vertical side portion 2c divides the upper side, and bends the upper end of the divided side portion on the tip side to form a valve clamping portion 2d.
On the other hand, the upper end of the inner divided side portion is bent to provide the valve contact 2b, and the lower portion is cut and raised in the opposite direction to form the socket locking portion 2f. On the other hand, on the second vertical side portion 2g having a small width, the above-mentioned FPC contact 2a bent at a substantially right angle is formed at the lower end on the tip side.

The terminal 2 is inserted into the socket body 1 from the valve mounting opening 1a at the upper end, and the FPC contacts 2a protruding outward from the outer wall 1g of the socket body 1 are inserted through the slits 1d and 1e. The lower part of the portion is inserted and attached to the terminal holding portions 1i, 1i of the socket body 1.

When the valve is inserted after the terminals 2 and 2 are mounted, the valve is clamped by the valve clamping portions 2d and 2d of the terminals 2 and 2 which are arranged opposite to each other.
It is in electrical contact with the valve contacts 2b, 2b and is connected to the conductive path of the FPC 3 via the FPC contacts 2a, 2a.

[0008]

As described above, in the wedge base valve used in connection with the FPC, the slits 1d and 1e for inserting the FPC contact of the terminal 2 are provided on the side wall of the socket from the upper end of the valve mounting opening 1a to the lower end. The socket side wall 1g-
1 and 1g-2 will be divided into two.

When the terminals 2 and 2 and the valve are attached to the socket body 1, an outward load shown by arrows in FIG. 10 is applied to the side walls 1g-1 and 1g-2, and the resin made by heating by lighting the valve. There was a risk that the socket side wall would be deformed in the direction of the arrow.

When the socket side walls 1g-1 and 1g-2 are deformed, the terminals 2 and 2 held on the socket side wall move in directions away from each other, and the contact pressure of the valve contacts 2b and 2b of the terminal 2 against the valve is reduced. And there is a problem that poor contact occurs.

An object of the present invention is to solve the above-mentioned problem. An object of the present invention is to prevent deformation of a side wall of a socket even when heated by lighting of a bulb, thereby preventing poor contact with the bulb. It is assumed that.

[0012]

In order to achieve the above object, according to the present invention, a terminal locking groove is formed in a first outer wall portion and a second outer wall portion which are divided by an FPC contact insertion slit of a socket body. On the other hand, the first terminal and the second terminal attached to the first outer wall and the second outer wall, respectively, are provided with locking portions to be inserted into the terminal locking grooves. The locking portion of the first terminal attached to the second outer wall portion is locked in the terminal locking groove of the second outer wall portion, and the locking portion of the second terminal attached to the second outer wall portion is connected to the terminal of the first outer wall portion. The wedge base is configured to be locked in the locking groove to prevent deformation in the separating direction by the locking portion of the terminal when an external force is applied to the first and second outer wall portions in the separating direction. It is intended to provide a lube for the socket.

The first and second outer walls divided by the slit have an L-shaped cross section, and the slit end face of the longer side has a U-shaped cross section to provide a terminal locking groove. The terminal is formed by bending each into a U-shaped cross section, and a first vertical side attached along the long side of the first outer wall and the second outer wall, and the first vertical side. It is bent more perpendicularly and is continuous and attached along the short side of the outer wall, and FP is attached to the tip.
A second vertical side having a C contact protruding therefrom, and a second vertical side bent at a right angle from the second vertical side and continuous to form a locking portion inserted into the terminal locking groove of the other outer wall portion. It has three vertical sides.

An arc-shaped outer peripheral wall is formed continuously on the outer surface side of the outer wall having a substantially L-shaped cross section, and a continuous portion of the outer wall and the outer peripheral wall is connected to the cross section of the outer wall. A terminal locking groove may be provided as a character shape.

[0015]

In the above-mentioned socket, the second divided outer wall is attached to the other divided first outer wall.
While locking the terminal, the first against the second outer wall
Since the first terminal attached to the outer side wall is locked, when the first and second outer side walls attempt to deform in a direction away from each other, they are pulled in a direction approaching each other by the terminal, and the above-mentioned deformation is caused. Is prevented.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments shown in the drawings. FIGS. 1 to 5 show a first embodiment, in which a wedge base valve socket 10 comprises a socket body 11 and a pair of terminals 12 (12A, 12B).
4 is attached to a mounting portion (not shown), and the FPC fitting portion 14 recessed in the outer periphery of the lower portion of the socket body 11
The FPC 3 is externally fitted as shown in FIG.
C3 is waterproofed by a ring 5 and is pressed and held. FIG. 1 shows the socket 10 thus installed.
The wedge base valve 4 shown in FIG. 0 is inserted through the valve insertion opening 15 at the upper end of the socket body 11.

The socket body 11 is integrally formed of an insulating resin. An FPC mounting portion 17 having a diameter slightly smaller than that of the disk-shaped flange portion 13 is provided. Rectangular tubular outer wall 1
8 stands. A pair of diagonal corners of the outer wall portion 18 are notched with slits 20, 20 for FPC contact insertion from the upper end to the lower end, and the outer wall portion 18 has a first outer wall portion 18a having a substantially L-shaped horizontal cross section. The second outer wall portion 18b is divided into two.

The first and second outer wall portions 18a, 18
Terminal insertion portions 21, 21 each having a U-shaped horizontal cross section are provided at the ends of the long sides 18a-1, 18b-1 of b, and terminal locking grooves 22, 2, which are opened at the center of the end surface of the outer wall.
2 is formed from the upper end to the lower end.

As shown in FIGS. 4 and 5, ribs 23, 23 project from the inner surfaces of the long sides of the first and second outer wall portions 18a, 18b, and are provided below the ribs 23, 23. The inner wall portions 24, 24 are continuously provided from the upper surface of the flange portion 13 with a gap between the outer wall portion and the outer wall portion. The opposing inner wall surfaces of the inner wall portions 24 and 24 serve as a valve holding portion, and a gap between the inner wall portions 24 and 24 and the outer wall portion are formed in the terminal holding portion 2.
5,25.

Further, projections 26 are provided on the lower portion of the outer surface of the outer wall portion 18 at a required interval, and the FPC fitting portion 14 is formed between the projections 26 and the FPC installation portion 17.

A pair of terminals 12 to be mounted on the socket body 11 has a shape shown in FIG. 2 and is formed by bending a thin metal plate, and a tip of a short side portion of the terminal 2 shown in FIG. Further bent portions are provided to form a substantially U-shaped cross section. That is, the first vertical side portion 30 having a large width is divided at the upper side, and the upper end of the divided side portion at the distal end side is bent to form the valve clamping portion 31, while the upper end of the inner divided side portion is bent. And the above-mentioned valve contact 3
2 and the lower portion is cut and raised in the opposite direction to form the socket locking portion 33.

On the other hand, the second vertical side portion 34 having a small width has an FPC formed by bending at a lower portion on the front end side in a substantially right angle direction.
A contact 35 is formed. Further, a third vertical side portion 36 is formed from the tip of the upper portion 38 of the FPC contact 35 in the same direction as the first vertical side portion 30, and the third vertical side portion 36 is formed in the terminal locking groove of the socket body 11. 22 so that the third vertical side portion 36 is a locking portion.

The pair of first terminal 12A and second terminal 12B are mounted on the socket body 11 as shown in FIGS. That is, the first terminal 12 </ b> A and the second terminal 12 </ b> B are respectively located on the outer wall portions 18 a and 18 from the valve insertion port 15 from above the socket body 11.
Insert along b.

At the time of insertion, the FPC contact 3 protruding outward
5 and 35 are inserted through slits 20 and 20 formed between the first outer wall portion 18a and the second outer wall portion 18b. Also, the third vertical side 36 of the first terminal 12A.
Is inserted through the terminal locking groove 22 of the terminal insertion portion 21 of the second outer wall portion 18b, while the second terminal 1
The third vertical side portion 36 of 2B is inserted through the terminal locking groove 22 of the first outer wall portion 18a.

When the insertion of the terminal is completed, the lower portion of the first vertical side 30 and the second vertical side 34 of the first terminal 12A is the terminal holding portion between the first outer wall 18a and the inner wall of the socket body 11. 25, the socket locking portion 33 is locked to the first outer wall portion 18a, and the third vertical side portion 36 is inserted and locked to the terminal insertion portion 21 of the second outer wall portion 18b. Is done. On the other hand, the lower portions of the first vertical side portion 30 and the second vertical side portion 34 of the second terminal 12B are attached to the terminal holding portion 25 on the second outer wall portion 18b side, and the socket locking portion 33 is connected to the second outer wall portion. Portion 18b and the third vertical side portion 36 is
The terminal insertion portion 21 of the outer side wall portion 18a is inserted and locked.

As described above, a part of the first terminal 12A locked and held by the first outer wall portion 18a, that is, the third vertical side portion 36 is locked by the second outer wall portion 18b. Second terminal 12 locked and held by second outer wall portion 18b
Part B is locked to the first outer wall portion 18a.

When the terminals 12A, 12B are mounted on the socket body 11 as described above, the outer wall portions 18a, 1 divided by the slits 20, 20 of the socket body 11 into two parts.
Even if a force in the direction shown by an arrow in FIGS. 1 and 5 is applied to the base 8b, the third vertical sides 36, 36 of the terminals 12A, 12B attached to the opposite sides approach each other inward. And the outward deformation is suppressed.

Therefore, even if an external force that deforms outwardly is applied to the first and second outer wall portions 18a and 18b of the socket main body due to assembly of the bulb, the external main body is suppressed by the terminal main body. Any attempt to transform it is also suppressed by the terminal body.

FIGS. 6 and 7 show a second embodiment of the present invention, in which the outer wall portion 18 of the socket body is different from that of the first embodiment, and other constitutions are the same as those of the first embodiment. Therefore, the same reference numerals are given and the description is omitted. Reinforcing outer peripheral wall portion 40 having an arcuate horizontal cross section is provided on the outer surface of the long side portion of the first outer wall portion 18a and the second outer wall portion 18b having a substantially L-shaped horizontal cross section.
a and 40b are provided so that both ends thereof are continuous, and connecting ribs 41a and 41b are provided between the outer peripheral wall portions 40a and 40b and the outer wall portions 18a and 18b.

Outer wall portions 18a, 18b on the side of the slit 20
A terminal insertion portion 21 having a U-shaped cross section having terminal locking grooves 22, 22 is formed in a continuous portion between the front end of the outer peripheral wall portions 40a, 40b.

In the second embodiment, the first outer wall portion 18a and the second outer wall portion 18b are reinforced by outer peripheral wall portions 40a and 40b, respectively, and a terminal is provided between the outer peripheral wall portion and the outer wall portion. Since the insertion portions 21 and 21 are formed to insert the terminal, the deformation of the outer wall portions 18a and 18b divided by the slits 20 and 20 can be more reliably suppressed.

[0032]

As is clear from the above description, the socket for a wedge base valve according to the present invention employs an FPC.
A part of the first terminal locked and held by the first outer wall is locked to the second outer wall with respect to the first and second outer walls divided by the contact insertion slit. 2
Part of the second terminal locked and held on the outer side wall is
Even when an external force is applied to the divided first and second outer wall portions so as to be deformed in an outward direction away from each other, the first and second outer wall portions are prevented from being deformed by the locking portions of the terminal. You.

Therefore, deformation due to insertion of the bulb into the socket body and deformation due to heating when the bulb is lit can be prevented, the contact pressure between the terminal and the electric contact portion of the bulb can be constantly maintained, and the occurrence of poor contact can be reliably prevented. I can do it.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment of the present invention.

FIG. 2 shows the terminal of FIG. 1, (A) is a front view,
(B) is a side view, and (C) is a plan view.

FIG. 3 is a plan view showing a state where a terminal is mounted on the socket body of the first embodiment.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is a sectional view taken along line VV of FIG. 3;

FIG. 6 is a plan view of a socket body according to a second embodiment of the present invention.

FIG. 7 is a sectional view taken along the line VII-VII of FIG. 6;

FIG. 8 is a plan view showing a conventional example.

9 shows the terminal installed in FIG. 8, (A)
Is a front view, (B) is a side view, and (C) is a plan view.

FIG. 10 is a sectional view taken along line XX of FIG. 8;

11 is a sectional view taken along line XI-XI in FIG.

[Explanation of symbols]

 3 FPC 4 Wedge base valve 10 Socket for wedge base valve 11 Socket body 12 (12A, 12B) Terminal 13 Flange part 14 FPC fitting part 15 Valve insertion port 18 (18a, 18b) Outer side wall part 20 Slit 21 Terminal insertion part 22 Terminal Locking Groove 30 First Vertical Side 31 Valve Holding Part 32 Valve Contact 33 Socket Locking Part 34 Second Vertical Side 35 FPC Contact 36 Third Vertical Side (Locking Part)

Claims (2)

(57) [Scope of request for utility model registration] 1. A terminal locking groove is formed in a first outer wall and a second outer wall divided by an FPC contact insertion slit of a socket body, while the first outer wall and the second outer wall are formed. The first terminal and the second terminal respectively attached to the first terminal and the second terminal are provided with locking portions to be inserted into the terminal locking grooves, and the locking portion of the first terminal mounted on the first outer wall portion side is connected to the second outer wall portion. And the engaging portion of the second terminal attached to the second outer wall portion is engaged with the terminal locking groove of the first outer wall portion.
A wedge base valve socket configured to prevent deformation in the separating direction by the locking portion of the terminal when an external force is applied to the first and second outer wall portions in the separating direction. 2. The first and first outer wall portions divided by the slit have an L-shaped cross section, and the slit end face of a long side thereof has a U-shaped cross section to provide a terminal locking groove. The second terminal is formed by bending each into a U-shaped cross section, and a first vertical side portion attached along a long side portion of the first outer wall portion and the second outer wall portion;
A second vertical side bent at a right angle from the vertical side and continuous and attached along the short side of the outer wall and projecting an FPC contact; and a direction perpendicular to the second vertical side. 2. The wedge base valve according to claim 1, further comprising a third vertical side portion that is bent and continuous, and is a locking portion inserted into the terminal locking groove of the other outer wall portion. Socket.