JPH07296913A - Pressure contact connector - Google Patents

Abstract

PURPOSE:To provide a pressure contacting connector which is embodied simply, small, and thin and which ensures easy and certain connection with the terminal patterns on a base board. CONSTITUTION:A plurality of wiring patterns are formed on a plastic film 11 to forum a pressure contacting connector, wherein the arrangement includes a flat cable 10 fitted with a metal terminal piece connected with one wiring pattern in the condition that each terminal piece is protruded at the end of the film 11 and an upper and a lower case 30, 50 to pinch the flat cable 10 from above and below. The contact part 14 is formed by folding each terminal piece 13 so that the lower part is convex. A through hole is provided in the bottom surface of a recess 51 formed in the lower case 50 mating with the contact part 14 of each terminal piece 13, and the contact part 14 is protruded from the through hole. The through holes are separated from one another by partition plates 55 made upright in the form of a flat plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure contact connector for electrically connecting to a terminal pattern of a substrate by pressure contact with the terminal pattern.

[0002]

2. Description of the Related Art Conventionally, a flat cable having a large number of wiring patterns formed on a synthetic resin film has been used to electrically connect two substrates. The electrical connection between the flat cable and the board is made by attaching a female connector to the board and inserting the end of the flat cable into the connector.

[0003]

However, the above-mentioned conventional connection structure has the following problems. Since it is necessary to attach the female connector to the board, a space is required accordingly, which is an obstacle to making the device thin.

Since the flat cable is connected vertically to the substrate, it is necessary to secure an extra space in the height direction, which is also an obstacle to making the device thinner. It was

The present invention has been made in view of the above points, and an object thereof is to provide a press-connecting connector which has a simple structure, can be easily and reliably connected to a terminal pattern of a substrate, and can be made compact and thin. To do.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention forms a plurality of wiring patterns on a synthetic resin film, and a metal terminal piece is provided on each wiring pattern at the end of the synthetic resin film. A flat cable with a metal terminal piece connected and fixed in a state of protruding from the above, and an upper and lower case for sandwiching and fixing the upper and lower sides of the flat cable with a metal terminal piece, and each of the metal terminal pieces is projected upward or downward. To form contact points, and to form through holes in the upper case or the lower case facing the contact points of the metal terminal piece, and project the contact points of the metal terminal piece from the through holes. I'm sorry. At this time, the through holes provided in the upper case or the lower case were partitioned by a partition plate standing upright in a flat plate shape.

[0007]

[Operation] To connect this pressure contact connector to another board,
In the state where each metal terminal piece of the pressure contact connector is in contact with a plurality of terminal patterns provided on another substrate, the pressure contact connector may be pressed and fixed so as to be in close contact with the other substrate. As a result, each metal terminal piece is elastically brought into contact with each terminal pattern with a moderately strong resilience, and both are securely connected electrically. At this time, the flat cable to which the press-connecting connector is attached becomes substantially parallel to other substrates. Therefore, the connection portion can be made thinner.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view showing a pressure contact connector according to an embodiment of the present invention. As shown in the figure, the press-connecting connector 1 is configured by sandwiching and fixing a flat cable 10 with a metal terminal piece between upper and lower cases 30 and 50. Each component will be described below.

The flat cable 10 with a metal terminal piece is
As shown in FIG. 1, a flexible synthetic resin film 11
Is formed by forming ten parallel wiring patterns (not shown) on the lower surface of each of the wiring patterns, and connecting and fixing ten metal terminal pieces 13 to the end portions of each wiring pattern.

The metal terminal pieces 13 are connected and fixed so as to project from the ends of the synthetic resin film 11. Further, the vicinity of the tip of each metal terminal piece 13 is bent so as to be convex downward to form a contact portion 14.

Further, the synthetic resin film 11 is provided with two holes 17, 17 at predetermined positions.

Synthetic resin film 11 of each metal terminal piece 13
To secure the connection to each metal terminal piece 13 on each wiring pattern
Are connected to each other via a conductive adhesive, and a terminal fixing film 15 made of the same material as the synthetic resin film 11 is superposed thereon, and both films in a portion between the metal terminal pieces 13 are superposed. It is performed by ultrasonically heating and welding between 11 and 15. Terminal fixing film 15
The portion to which is attached is the metal terminal piece fixing portion 16.

Next, FIG. 2 is a plan view of the lower case 50.
As shown in FIGS. 1 and 2, the lower case 50 is formed by molding a synthetic resin, and a recess 51 for accommodating the metal terminal piece 13 is provided at the center of the upper surface of the lower case 50.

Further, the metal terminal piece 13 on the lower surface of the recess 51.
Of the through holes 5 at the positions facing the respective contact portions 14 of
3 are provided, and the through holes 53 are separated from each other by a partition plate 55 standing upright in a flat plate shape.

On the other hand, at the position of the recess 51 facing the terminal fixing film 15 of the flat cable with metal terminal piece 10 (that is, the position facing the metal terminal piece fixing portion 16), the shallow metal terminal piece fixing portion storage portion 57 is provided. Is provided.

Further, locking projections 59, 59 are provided on the upper surface of the lower case 50 at positions facing the holes 17, 17 of the flat cable 10, respectively, and one side surface forming the recess 51 is provided. , Engaging projections 63, 63 are provided.

Next, FIG. 3 is a schematic side sectional view of the upper case 30. As shown in FIGS. 1 and 3, the upper case 30 is formed by molding a synthetic resin, and a recess 31 is provided on the lower surface thereof (however, one side a of the recess 31 is open). Has been).

Locking holes 33, 33 are provided on the upper surface of the upper case 30 at positions facing the locking protrusions 59, 59 of the lower case 50, respectively. Further, on the upper end side of the upper case 30, the engagement protrusion 6 of the lower case 50 is provided.
The engaging holes 37, 3 are provided at the positions facing 3, 63, respectively.
7 is provided.

Further, locking claws 41, 41 (only one of which is shown in FIG. 1) project downward from both sides of the upper case 30.

To assemble the press-connecting connector 1, first, as shown in FIG. 1, the metal terminal piece 13 of the flat cable 10 is housed in the recess 51 of the lower case 50.
At this time, each contact portion 14 of the metal terminal piece 13 is attached to the lower case 5
0 through each of the through holes 53 (see FIG. 2), and the locking projections 5 are respectively inserted into the holes 17, 17 of the flat cable 10.
Insert 9,59. At the same time, the metal terminal piece fixing portion 16 of the flat cable 10 is housed in the metal terminal piece fixing portion housing portion 57 of the lower case 50.

Then, the engaging protrusion 63 of the lower case 50,
The engaging holes 37, 37 of the upper case 30 are hooked on 63, and the upper case 30 is rotated around the hooked portion to lock the locking protrusions 5 of the lower case 50 in the locking holes 33, 33 of the upper case 30.
9 and 59 are inserted, and the tips of the locking projections 59 and 59 are heat swaged.

FIG. 4 shows a schematic side cross section of the pressure contact connector 1 thus completed. As shown in the figure, the flat cable 10 is securely fixed by being sandwiched between the upper and lower cases 30 and 50, and each contact portion 14 of the metal terminal piece 13 projects downward from each through hole 53.

In this embodiment, since the partition plates 55 partition the through holes 53, it is possible to completely prevent the adjacent metal terminal pieces 13 from contacting each other. However, if the size and shape are such that there is no fear of contact, the partition plate 55 need not be provided.

Next, FIG. 5 is a schematic perspective view showing an example of use of the press-connecting connector 1. As shown in the figure, in order to connect the press-connecting connector 1 to another board 70, the engaging claws 4 of the press-connecting connector 1 are inserted into the engaging holes 71, 71 provided in the other board 70.
All that is required is to insert and lock 1,41. As a result, the ten terminal patterns 75 provided on the other substrate 70 are brought into pressure contact with the contact portions 14 of the metal terminal pieces 13 of the pressure contact connector 1. The state of the metal terminal piece 13 at this time is shown by a dotted line in FIG. Since the metal terminal piece 13 is bent so as to be convex downward and the contact portion 14 is formed, the metal terminal piece 13 has a large elasticity, and therefore is elastically contacted with the terminal pattern 75 of another substrate 70 by a sufficient elastic force. .

By the way, in the above-mentioned embodiment, the pressure contact connector 1 according to the present invention is attached to one end of the flat cable 10, but the pressure contact connector 1 may be attached to both ends of the flat cable 10. According to this structure, when connecting the terminal patterns of two different boards, the positions of the terminal patterns of the two boards are
Whether in a parallel position, a vertical position, an oblique position, or a distant position, the flat cable 10 flexes easily and can easily cope with them. When the press-connecting connector 1 is attached only to one end of the flat cable 10, the other end of the flat cable 10 is left as it is (or with a reinforcing plate attached to its back surface), and this is inserted into a female connector for connection. It may be of any type (of course, it may be of any other structure).

In the above embodiment, the metal terminal pieces are bent so as to be convex downward, but are bent so as to be convex upward so that the respective contact portions are projected from the through holes provided in the upper case. May be.

Alternatively, a plurality of metal terminal pieces may be bent alternately (or in any other combination) so as to be vertically convex, and the respective contact portions may be projected from the through holes provided in the upper and lower cases, respectively. good.

In the above embodiment, the locking claws 41, 41 provided on the pressure contact connector 1 are connected to the board 70 by engaging them, but instead of the locking claws 41, 41, the pressure contact connector is used. 1 may be pressed and fixed to the substrate 70 with a screw or an adhesive.

[0029]

As described in detail above, the press contact connector according to the present invention has the following excellent effects. Since the flat cable with metal terminal pieces attached is sandwiched between the upper and lower cases, the structure is simple and the size and thickness can be reduced.

Since the flat cable is connected in parallel to the other substrate to be connected, not perpendicularly,
The flat cable connection portion of the other substrate can be thinned.

Since the contact portion of the elastic metal terminal piece is in elastic contact with the terminal pattern of the other substrate, the contact pressure is strong and the connection can be surely performed.

The connection work is easy because the connection is completed simply by pressing and fixing the pressure contact connector to another substrate.

Since the through holes provided in the upper case or the lower case are partitioned by the partition plate standing upright like a flat plate, it is possible to completely prevent the contact between adjacent metal terminal pieces.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a press-connecting connector according to an embodiment of the present invention.

FIG. 2 is a plan view of a lower case 50.

FIG. 3 is a schematic side sectional view of an upper case 30.

FIG. 4 is a schematic side sectional view of the press-connecting connector 10.

FIG. 5 is a schematic perspective view showing a usage example of the press-connecting connector 1.

[Explanation of symbols]

 1 Pressure contact connector 10 Flat cable with metal terminal piece 11 Synthetic resin film 13 Metal terminal piece 14 Contact part 30 Upper case 50 Lower case 53 Through hole 55 Partition plate

Claims (2)

[Claims] 1. A flat cable with metal terminal pieces, wherein a plurality of wiring patterns are formed on a synthetic resin film, and metal terminal pieces are connected and fixed to the respective wiring patterns in a state of protruding from the ends of the synthetic resin film. An upper and a lower case for sandwiching and fixing the upper and lower sides of the flat cable with metal terminal pieces, each of the metal terminal pieces being bent upward or downward to form a contact portion, and the metal terminal piece A through-hole is provided in the upper case or the lower case facing each of the contact parts, and the contact part of the metal terminal piece is projected from each of the through-holes. 2. The press-connecting connector according to claim 1, wherein the through holes provided in the upper case or the lower case are separated from each other by a partition plate standing upright in a flat plate shape.