JPH07320867A - Plug-in connector for electroluminescent element - Google Patents

Abstract

PURPOSE:To provide a plug-in connector for an electroluminescenet element, ensuring a pertinent application to a commercial display or the like by allowing a change in the mounting direction of an EL body via simple operation. CONSTITUTION:A casing 14 with a pair of plug blades 13 and 13 projected from the lower side thereof is internally provided with two connection terminals 15 and 15 dislocated from each other by 90 degrees, so as to correspond to the blades 13 and 13. Also, through-holes 16 and 17 are drilled in the surrounding wall of the casing 14 on the extension line of the two terminals 15 and 15. The ends of terminal bodies 8 and 8 projected from one edge of a connection housing 4 are inserted in the casing 14 through the selection of the holes 16 and 17, and connected to the terminals 15 and 15 inside the casing 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an EL plug-in type connector device used when connecting a power source to an electrode lead of an electroluminescent (hereinafter simply referred to as EL) as a surface light emitter.

[0002]

2. Description of the Related Art An EL which emits light when a light emitting layer made of phosphor powder is sandwiched between flat electrode layers and an electric field is applied is
Since a uniform surface light source with no unevenness on the light emitting surface can be obtained, and since it is a flat plate shape and there is no heat loss, it is a display that can utilize these characteristics, a backlight of a liquid crystal display device, or other various display devices, etc. In recent years, it has become widely used. By the way, in order to make the light emitting layer of the EL body emit light, it is necessary to connect a power source to the two electrode layers sandwiching the light emitting layer. Therefore, in the conventional EL body, as shown in Japanese Utility Model Publication No. 61-31519 and No. 62-42479, two plate-shaped electrode leads are projected outward. , The two electrode leads protruding from the EL body are connected to an external cable by soldering, or the tip of the electrode lead is inserted into an insertion terminal attached to the tip of the external cable in some cases. They are connected by being attached.

[0003]

As described above, conventionally, the electrode lead protruding outward from the side edge of the EL body and the external cable are soldered, or the tip end of the electrode lead is connected to the external cable. The connection was made by inserting it into the insertion terminal provided at the tip. However, as is well known, there is a problem that a certain skill is required for soldering and a lot of labor is required for the connection work. In addition, since the soldering work generally involves heat generation, during the soldering work of the electrode lead and the power supply side terminal, the peripheral portion of the EL body is heated along the electrode lead and the heat-sealed portion is not thermally deformed. In the extreme case, there is a big defect that air enters from the sealing part along the electrode lead to cause poor adhesion between the resin cover film and the EL body, causing unevenness of light emission in the light emitting layer and reducing the commercial value. . Also,
If the tip of the electrode lead is inserted into the insertion terminal attached to the tip of the external cable, the electrode lead is originally a thin plate that is not stiff. There is a problem that buckling occurs and contact is incomplete.

In order to eliminate such inconvenience, the inventors of the present invention have made it possible to easily and surely connect the power supply and the electrode lead without soldering or inserting into the insertion terminal. We provided a device for connecting electrode leads (Japanese Patent Application No. 6-70208). The present invention relates to this Japanese Patent Application No. 6-7020.
By further developing and improving the electrode lead connecting device according to No. 8, there is provided an EL plug-in type connector device in which the mounting direction of the EL body can be selectively set in two directions, vertical and horizontal. The purpose is to do. That is, when the EL body is used for a commercial display device, for example, it is necessary to change the arrangement direction of the EL body due to the layout and the like. It was difficult to change the installation direction. Therefore, in the present invention, the arrangement direction of the EL body can be changed by a simple operation, and for example, an EL that is most suitable for a commercial display.
The present invention provides an insertion plug type connector device.

[0005]

The structure of the present invention for achieving the above-mentioned objects will be described in detail. A connection is provided by arranging a terminal body connected to an electrode lead of an electroluminescence as a surface light-emitting body. And a plug-in type connector device in which a connecting terminal for connecting to a tip of a terminal body projecting outward from one end surface of the connecting housing is provided inside. The connector device has at least two connection terminals corresponding to the blades arranged inside a casing made of an insulating material having a pair of blades protruding from the lower surface so as to be displaced 90 degrees from each other, and Through holes are formed in the peripheral wall of the casing on the extension lines of the two connection terminals, and the through holes are selected to form a terminal body protruding from one end surface of the connection housing. And inserted into the single, a electroluminescent for bayonet plug connector, characterized by being configured so as to achieve a connection with the connection terminals of the inner casing.

In the EL plug connector of the present invention, as described above, at least two connecting terminals corresponding to the blades are arranged so that their positions are displaced from each other by 90 degrees.
Since the through holes are formed in the peripheral wall of the casing on the extension lines of the two connection terminals, the through holes are selected and the tip of the terminal body protruding from the one end surface of the connection housing is inserted into the casing. The power supply is connected to the electrode lead of the EL body by inserting and connecting the terminal body and the connection terminal. As described above, since the two connecting terminals, which are displaced by 90 degrees corresponding to the pair of blades, are provided in the casing, the EL body is eventually selectively mounted in two directions, the vertical direction and the horizontal direction. It is possible.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific construction of the EL plug connector of the present invention will be described in detail below with reference to the illustrated embodiments. 1 is an exploded perspective view showing an embodiment of the device of the present invention, FIG. 2 is a partially cutaway front view when the blade is inserted into an outlet, and FIG. 3 is a sectional view taken along the line AA of FIG. , Fig. 4
FIG. 6 is an explanatory diagram when changing the mounting direction of the EL body.

In the figure, reference numeral 1 denotes an EL body in which both sides of the EL element are sealed with a resin outer film, and 2 denotes a projecting portion which is a connecting portion projecting from one side edge of the EL body 1. Reference numeral 3 denotes an electrode lead in which the outer skin of the protruding portion 2 of the EL body 1 is partially cut out and exposed in the cutout portion. The notch for exposing the electrode lead 3 may be formed on only one surface of the protruding portion 2, or may be formed on both front and back surfaces.

Reference numeral 4 denotes an entire connecting housing for connecting the electrode lead 3 exposed in the cutout portion of the EL body 1. The connection housing 4 has a recess 5 inside.
And a cover body 7 that is detachably fitted to the upper surface of the main body 6. Reference numeral 8 denotes a pair of terminal bodies arranged in the recessed portion 5 of the main body 6 with a predetermined space therebetween, and 9 denotes an upwardly projecting conductive portion near the tips of the terminal bodies 8, 8. It is a small protrusion. Needless to say, the recessed portion 5 has such a size that the protruding portion 2 of the EL body 1 can be inserted therein. Further, when the protruding portion 2 of the EL main body 1 is inserted into the recessed portion 5 of the main body 6, the terminal bodies 8 and 8 are inserted into the notches formed in the protruding portion 2 and the terminal bodies 8 and 8 are Small projection 9,9
Is set in the recessed portion 5 so that it can be inserted thereinto, and the small projections 9 and 9 sides of the terminal bodies 8 and 8 are located in the connection housing 4 including the main body 6 and the cover body 7. However, the rear end sides of the terminal bodies 8 and 8 are not shown in FIGS.
As shown in FIG. The protruding height of the small protrusions 9 and 9 is the electrode lead exposed in the notches when the small protrusions 9 and 9 are fitted into the notches formed in the protrusion 2 of the EL body 1. The height is set so that the small projections 9 and 9 can come into contact with the projections 3 and 3. Therefore, in the concave portion 5 of the main body 6 from which the cover body 7 is removed, E
When the protrusion 2 of the L body 1 is fitted, the small protrusions 9 and 9 of the terminal bodies 8 and 8 can be inserted into the notches, and the terminal body 8 can be inserted into the electrode leads 3 and 3 exposed in the notches. The small projections 9 and 9 of the first and the second contact 8 are brought into conduction.

Reference numeral 10 is an EL inserted into the concave portion 5 of the main body 6.
The locking means is provided in the recess 5 for locking the protrusion 2 of the main body 1. That is, as described above, the terminal body 8 and the electrode lead 3 are connected by setting the protruding portion 2 of the EL body 1 in the concave portion 5 of the body 6, but in this state, for example, the EL body 1 If there is a case where is pulled in the direction opposite to that of the main body 6, the small projection 9 of the terminal body 8 may be separated from the inside of the cutout. Therefore, the locking means 10 is provided in the concave portion 5 of the main body 6 so that the concave portion 5
The protrusion 2 of the EL body 1 inserted in the inside can be locked. The locking means 10 shown in FIG. 1 is a projection provided at a substantially intermediate portion of the terminal bodies 8 arranged in the recess 5, and on the other hand, a through hole 11 into which the projection 10 can be fitted. Is formed in a predetermined portion of the protruding portion 2 of the EL body 1. Therefore, when the through hole 11 formed in the projecting portion 2 of the EL body 1 is passed through the projection (locking means 10), the small projecting portions 9 and 9 of the terminal bodies 8 and 8 are inserted into the cutout portion to conduct electricity. The state can be obtained, and the connection conduction state can be prevented from being interrupted even when an external force is applied to the EL body 1.

Next, reference numeral 12 denotes a plug-in type connector device. The connector device 12 has a lower surface inside a casing 14 made of an insulating material in which a pair of blades 13, 13 for inserting into a power outlet is projected. , At least two connection terminals 1 corresponding to the respective blades 13, 13
5 and 15 are arranged so that their positions are displaced from each other by 90 degrees, and a pair of through holes 1 are formed in the peripheral wall of the casing 14 on the extension line of the two connection terminals 15 and 15.
6, 16 and 17, 17 are formed by drilling. The distance between the through holes 16, 16 and 17, 17 is equal to the distance between the projecting portions of the terminal bodies 8, 8 projecting from one end surface of the connection housing.
The protrusion of 8 is adapted to be inserted into the through holes 16, 16 and 17, 17. And through hole 1
6, 16 or through holes 17, terminal bodies 8 inserted in the 17,
The tip portion of 8 contacts the connection terminals 15 and 15 to obtain a conductive state.

The connection terminals 15 and 1 of the illustrated embodiment
Reference numeral 5 denotes a linear terminal that can be inserted into a slit formed at the tip of the terminal body 8, 8, and this portion is a terminal body 8 attached to the connection housing 4. It is possible to change to another known terminal structure as long as it can be connected and conducted to the tip portion of 8.

As described above, in the through holes 16, 16, 17, 17 formed in the peripheral wall of the casing 14, the tip portions of the terminal bodies 8, 8 projecting to the outside of the connecting housing 4 do not cause any trouble. It is opened to a size that can enter,
The through holes 16, 16 formed by shifting the position by 90 degrees
When the terminal bodies 8 and 8 are selected and inserted into the through holes, the terminal bodies 8 and 8 are connected to the connection terminals 15 and 15 in the casing 14 to obtain a connected state.
In addition, 18 in the drawing is the terminal bodies 8 and 8 and the connection terminals 15 and 1.
5 is a cover body that is attached to the upper surface of the connection housing 4 and the insertion plug type connector device 12 after the connection of the connector housing 5 is completed.
Since 13 is projected, the lower surface side of the cover body 18 is an opening. Reference numeral 19 denotes a power outlet into which the blades 13, 13 are inserted.

The EL plug connector of the present invention is constructed as described above, and after connecting the electrode leads 3 and 3 of the EL body 1 to the terminal bodies 8 and 8, it is connected to the outside of the connecting housing 4. The protruding end portions of the terminal bodies 8 and 8 are
It is inserted into, for example, the through holes 16 formed in the peripheral wall of the casing 14 forming the insertion plug type connector device 12. Then, the connection terminals 15 and 15 arranged inside the casing 14 and the terminal bodies 8 and 8 are connected to be in a conductive state, and power is supplied to the electrode leads 3 and 3 of the EL body 1 through the plug blades 13 and 13. The light emitting layer emits light by the action of the electric field. When the mounting direction of the EL body 1 is to be changed from the vertical direction to the horizontal direction, for example, the cover body 1
8 is removed, and the terminal bodies 8 and 8 assembled in the connection housing 4 are pulled out from the through holes 16 and 16 of the casing 14 forming the insertion plug type connector device 12,
Inserting this into another through hole 17, 17, the casing 1
It is intended to connect with the connection terminals 15 and 15 in FIG. 4 (FIG. 4).

[0015]

As described above, according to the EL plug connector of the present invention, the mounting direction of the EL body can be changed by a simple operation, and a connector device suitable for a commercial display or the like is provided. Is something that can be done.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the device of the present invention.

FIG. 2 is a partially cutaway front view when the blade is inserted into an outlet.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is an explanatory diagram when changing the mounting direction of the EL body.

[Explanation of symbols]

1: EL main body 2: Projection part 3: Electrode lead 4: Connection housing 5: Recessed part 6: Main body 7: Cover body 8: Terminal body 9: Small protrusion 10: Locking means 11: Through hole 12: Plug Type connector device 13: blade 14: casing 15: connection terminal 16: through hole 17: through hole 18: cover body

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shunji Nagaoka 660 Tsuruma, Machida City, Tokyo Terada Electric Works Co., Ltd. Machida Plant

Claims (1)

[Claims] 1. A connection housing having a terminal body connected to an electrode lead of an electroluminescence as a surface light-emitting body, and a terminal body projecting outward from one end surface of the connection housing. Of the insertion plug type connector device having a connection terminal to be connected to the tip end of the insertion plug type connector device, wherein the insertion plug type connector device is provided inside a casing made of an insulating material with a pair of blades protruding from the lower surface. , Arranging at least two connection terminals corresponding to the respective blades so that their positions are displaced from each other by 90 degrees,
Further, through holes are formed in the peripheral wall of the casing on the extension lines of the two connection terminals, and the through holes are selected and the terminal body projecting from one end surface of the connection housing is inserted into the casing. A plug-in connector for electroluminescence, which is configured to be attached to and connected to a connection terminal inside a casing.