JPH0236220Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an electrical connection device, and more specifically, to a connection device used for electrical connection of flexible printed circuit boards.

(Prior Art) Conventionally, as connection devices for flexible printed circuit boards, those shown in FIGS. 1a and 1b are common. In the case a of the same figure, a flexible printed circuit board 103 is used to increase the rigidity of the connector attachment part.
A reinforcing plate 104 made of a material such as epoxy resin or phenolic resin is attached to the film side of the end of the connector body 101 with the conductor part 103A of the flexible printed circuit board on the back side and the connector conductor 102 in contact with each other. It has a structure in which pressure is maintained. In addition, the one shown in FIG. b uses two reinforcing plates 105 and 106 with different lengths in the longitudinal direction.
Connector body 10 with a step to prevent escape
1 is held under pressure.

However, in the case of such conventional connection devices, attaching the reinforcing plate requires time and materials, resulting in high costs, and with double reinforcing plates, when separating the flexible printed circuit board and the connector body, it is necessary to attach the reinforcing plate. The problem was that the plate got caught on the stepped part of the connector body and was difficult to remove.

(Purpose of the invention) This invention eliminates the above-mentioned drawbacks of the conventional technology, and
The object of the present invention is to provide a new electrical connection device that is low cost, easy to remove, and can be applied to tape electric wires.

(Structure of the invention) This invention includes an upper connector piece having a substantially plate shape with a positioning recess for sandwiching a flexible printed circuit board, and a plurality of connectors disposed at positions corresponding to the conductor portions of the flexible printed circuit board. and a substantially plate-shaped lower connector piece provided with a conductor, and one of the connector pieces has a plurality of printed circuit boards protruding from the flexible printed circuit board in correspondence with positions outside the conductor portion. A piercing pin or pin hole and a locking claw or insertion hole are provided, and the other connector piece is provided with a pin hole or a plurality of pins and an insertion hole or locking claw.

(Example) Next, an example of this invention will be described with reference to FIGS. 2 to 6. FIG. 2 shows the upper connector 3. On one side of the upper connector main body 31, which is approximately plate-shaped, there is a positioning recess 32 that matches the width of the flexible printed circuit board 1 to be attached.
is cut, and a plurality of pin holes 33, three in this example, are drilled perpendicularly to the plate surface. This pin hole 33 is connected to the conductor portion 1A of the flexible printed circuit board 1.
It is necessary to install it in a position that avoids Furthermore, locking claws 34 are provided at both ends of the upper connector main body, standing upright on the plate surface and having a claw portion 34A at the tip.

The lower connector 4 also has a substantially plate shape as shown in FIG.
A printed circuit board piercing pin 42 with a sharp tip is implanted. Furthermore, a plurality of connector conductors 44 are arranged on the board surface at positions corresponding to the flexible printed circuit board conductor portions 1A, and insertion holes that engage with the locking claws 34 of the upper connector 3 are provided at both end positions corresponding to the locking claws 34. 43 are provided.

Flexible printed circuit board to be installed 1
As shown in FIG. 4, the conductor portion 1A
An adhesive tape part 2 is provided on the opposite side of the double-sided adhesive tape part 2, and the surface of this double-sided adhesive tape part 2 is arranged so as to face the positioning recess 32 of the upper connector 3, and is placed between the upper connector 3 and the lower connector 4. Being squeezed. In this way, as shown in FIGS. 5 and 6, the adhesive tape portion 2 of the flexible printed circuit board 1 adheres to the surface of the positioning recess 32 of the upper connector 3, and at the same time, the printed circuit board piercing pin of the lower connector 42 is flexible printed circuit board 1
is inserted into the pin hole 33 of the upper connector 3, and the locking claw 34 of the upper connector 3 is further inserted into the insertion hole 43 of the lower connector 4, and the claw portion 34A is caught.
The flexible printed circuit board 1 and the lower connector 4 are reliably connected together. In this state, the flexible printed circuit board conductor portion 1A and the connector conductor 44 are securely contacted.

On the other hand, if you want to separate these three, pull the claw part 34A of the locking claw 34 in the direction shown by the arrow in FIG.
, then pull both connectors apart from each other. In the above embodiment, the locking claw 34 is provided on the upper connector 3 and the printed circuit board piercing pin 42 is provided on the lower connector side, but instead of this, a pin is provided on the upper connector and a pin is provided on the lower connector. A stopper may be provided.

(Effects of the invention) As stated above, this invention has the following advantages: (i) it does not use a reinforcing plate, so the structure is simple and both material and assembly costs can be kept low; and (ii) it is easy to assemble and disassemble. There is a certain effect. Furthermore, as can be seen from the above configuration, there is also the advantage of (iii) versatility in that this connecting device can be applied to tape electric wires as is.

[Brief explanation of the drawing]

FIG. 1 is a simplified side sectional view to explain the prior art, FIGS. 2 and 3 are perspective views showing an upper connector and a lower connector, respectively, and FIG. 4 is a perspective view to explain attachment to a flexible printed circuit board. , FIG. 5 is a side sectional view, and FIG. 6 is a side sectional view showing the completed state of installation. DESCRIPTION OF SYMBOLS 1... Flexible printed circuit board, 1A... Flexible printed circuit board conductor part, 3... Upper connector, 32... Positioning recess, 33... Pin hole,
34...Latching claw, 4...Lower connector, 42...
Printed circuit board piercing pin, 43...insertion hole,
44...Connector conductor.

Claims (1)

[Scope of utility model registration request] An upper connector piece 3 having a substantially plate shape with a positioning recess 32 for sandwiching the flexible printed circuit board 1, and a plurality of connector conductors 44 arranged at positions corresponding to the conductor portions of the flexible printed circuit board 1 are provided. The lower connector piece 4 is substantially plate-shaped, and one of the connector pieces has a plurality of printed circuit board piercing pins 42 protruding from the conductor portion 1A of the flexible printed circuit board. Alternatively, a plurality of pin holes 33 and a plurality of locking claws 34 or insertion holes 43 are provided, and the other connector piece is provided with a plurality of pin holes 33 or a plurality of printed circuit board piercing pins 42 and insertion holes 43 or locking holes 34. Electrical connection equipment for flexible printed circuit boards.