JPH04249082A - Multi-electrode connector - Google Patents

Abstract

PURPOSE:To facilitate increase in the number of poles of a multi-polar connector of the type that a circuit base board, flexible sheet, and flexible flat cable are inserted in a female connector to generate connections. CONSTITUTION:A circuit base board as object to be connected, flexible sheet, and flexible flat cable are laminated in a plural number while dislocated in a multi-polar connector according to the invention, and thereby a connector insert part is formed in steps, and at each step contacting pieces are installed in line, Corresponding thereto a group of contacts are attanged in steps in an insert groove in a female connector, and at each step to generate touch of a contact with each contacting piece.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention forms a connector insertion portion by arranging a group of contact pieces on the end of a wiring board, flexible flat cable, or flexible sheet, and uses the connector insertion portion to insert a female connector. The present invention relates to a multi-pole connector that is inserted into a groove to make contact with a group of contacts arranged in the groove.

0002

[Prior Art] Conventionally, in connectors for wiring boards,
The wiring board has a connector insertion part at the end, and the contacts are arranged in a single row in the connector insertion part, and the contacts arranged in the board insertion groove of the female connector are also arranged in a single row correspondingly. Single-row connection is achieved by inserting the connector insertion portion into the board insertion groove of the female connector.

0003

[Problems to be Solved by the Invention] In the above wiring board connector, the contacts of the connector insertion portion at the end of the wiring board and the contacts of the female connector are arranged in a single row. Increasing the number of poles is accompanied by limitations in manufacturing technology, and has the problem of making it difficult to achieve high density. Further, if the number of poles is increased in a single row arrangement, there is a problem that the wiring board becomes elongated and large, and it becomes difficult to implement because there is a limit to the width of the wiring board.

0004

[Means for Solving the Problems] As a means for solving the above-mentioned problems, the present invention forms the connector insertion portion at the end of the wiring board in a step-like manner, and arranges a large number of contact pieces in parallel at each step. By arranging a large number of contacts in the wiring board insertion groove of the female connector in a stepped manner so as to correspond to the above-mentioned contact piece arrangement, and inserting the connector insertion portion into the insertion groove, the contact pieces of each stage of the insertion portion and The insertion groove is constructed so that the contacts at each stage are in contact with each other.

[0005] Furthermore, the present invention stacks a plurality of wiring boards, flexible flat cables, or flexible sheets in a stepped manner with their positions shifted at each end, and also arranges a large number of contact pieces or conductors in each stage. Similarly, a large number of contacts are arranged in a stepped manner in the wiring board insertion groove of the female connector, and by inserting the connector insertion part into the insertion groove, the connections at each stage of the insertion part are formed. It is constructed so that the pieces and the contacts at each stage of the insertion groove are in contact with each other.

[0006]

[Operation] By inserting the connector insertion portion at the end of the wiring board or the end of the laminated wiring board into the female connector,
The contact piece of each stage of the connector insertion portion and the corresponding contact of each stage of the female connector make electrical contact.

[0007] The connector insertion portion is formed in a stepped shape, or a plurality of wiring boards are stacked at different positions in a stepped manner, and the contacts of the female connector are similarly arranged in a stepped manner;
Since a group of contact pieces is arranged in each stage so that contact is made at each stage, it is possible to achieve contact within the limited dimensions of the wiring board without the technical problem of narrowing the pitch. Multipolarization can be advantageously achieved. In addition, a sufficient contact area between the contact pieces and contacts can be ensured to effectively achieve highly reliable and high-density connections. The same applies to other flexible flat cables and flexible sheets.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a first embodiment of the present invention, and as shown in FIGS. 1 and 2, the front and back surfaces of the end of the wiring board 1 are arranged so that the facing distance between each stage is from the insertion start end 4 to the insertion termination end 5. The connector insertion part 2 is formed in a stepped shape of two or more stages so that the width gradually increases, and first and second
, third contact pieces 6A, 6B, and 6C are arranged in parallel.

FIG. 9 shows the connector insertion portion 2 of the wiring board 1.
shows the female connector into which it is inserted. As shown in the figure, the female connector 3 has a board insertion groove 8, and the first, second, and third contacts 9A, 9B, and 9C are arranged on opposing surfaces of the insertion groove 8 so that the distance between them is 18 on the insertion starting end side. They are arranged side by side in a step-like manner of two or more steps so that the width gradually becomes narrower from there to the insertion terminal side 19.

The connector insertion portion 2 of the wiring board 1 is inserted into the insertion groove 8 of the female connector 3, and the first contact piece 6A of the connector insertion portion 2 is inserted into the first contact 9 of the female connector 3.
Similarly, the second contact piece 6B contacts the second contact 9B.
Then, the third contact piece 6C comes into contact with the third contact 9C, respectively.

Each of the contacts 9A, 9B, and 9C has an elastic contact piece at one end and a male terminal at the other end, and the male terminal protrudes outward from the female connector for connection to a wiring board or the like. At the same time, the elastic contact pieces are arranged in the board insertion groove 8 in a stepwise manner as described above to make contact with the wiring board.

FIG. 3 shows a second embodiment of the present invention, and as shown in the figure, first, second, third wiring boards 11A, 11B,
Laminated wiring board 11 is made by laminating multiple wiring boards of 11C.
are formed, and the first, second, and third wiring boards 11A, 11B,
11C on the front and back surfaces of the laminated wiring board 11,
2 by shifting the position from the insertion start end side 4 to the insertion end side 5.
A connector insertion portion 2 is formed in a step-like shape having more than one step. First, second,
Third contact pieces 6A, 6B, and 6C are arranged in parallel. By increasing the number of layers of the laminated wiring board 11, the number of stages and contact pieces can be increased.

Similarly to the above, by inserting the connector insertion portion 2 of the laminated wiring board 11 into the insertion groove 8 of the female connector 3, the first, second and third Contact pieces 6A, 6B, 6C and the first female connector 3
, second and third contacts 9A, 9B and 9C contact each other at corresponding stages.

As shown in FIG. 4, the contact pieces 6A, 6B, 6C attached to each stage of the laminated wiring board 11
Through holes 7A and 7B that pass through A, 11B and 11C
, 7C are connected in any combination via the conductive layer on the inner peripheral surface. For example, as shown in the figure, the first contact pieces 6A facing each other on the insertion terminal side are connected to each other via the conductive layer of the through hole 7A, and similarly the second contact pieces 6B facing each other and the third The contact pieces 6C are also connected to each other via the conductive layers of the through holes 7B and 7C, respectively.

FIGS. 5 and 6 show a third embodiment. As shown in the figure, a plurality of flexible sheets 13 having a large number of parallel conductors 12 are laminated to form a laminated flexible sheet 14, and the ends of the laminated flexible sheet 14 are inserted on the front and back surfaces. The positions of the flexible sheets 1 are shifted from the starting end side 4 to the insertion end side 5 to form a step-like shape of two or more steps, and the above-mentioned flexible sheets 1 are placed on the facing surfaces of each step of the front and back sides.
The ends of the three parallel conductors 12 are arranged in parallel to form the connector insertion part 2. Reference numerals 12A, 12B, and 12C indicate the ends of the parallel conductors 12 arranged in each stage, and the ends of the conductors form contacts with the contacts 9A, 9B, and 9C in each stage.

As described above, the number of laminated flexible sheets 14 can be increased to increase the number of stages in which the groups of contact pieces are arranged in parallel. By inserting the connector insertion portion 2 of the laminated flexible sheet 14 into the insertion groove 8 of the female connector 3, the ends 12A, 12B, 12C of the parallel conductors 12 on the front and back sides of the insertion portion are inserted into the insertion groove 8 of the female connector 3. and the first and second female connectors 3
, third contacts 9A, 9B, and 9C are in contact with each other at each stage.

FIGS. 7 and 8 show a fourth embodiment of the present invention. As shown in the figure, flexible flat cables 16 having a large number of parallel conductors 15 are laminated to form a laminated flexible flat cable 17, and the end portions of each flexible flat cable 16 are stripped of their coatings and conductors are removed. While exposing the end of 15,
The ends of each flexible flat cable 16 with the conductor exposed are shifted from the insertion start end side 4 to the insertion end side 5 on the front and back surfaces, and are arranged in a step-like shape of two or more steps, so that the front and back surfaces face each other. The ends of the exposed parallel conductors 15 are arranged side by side to form the connector insertion part 2. Reference numerals 15A, 15B, and 15C indicate exposed ends of the parallel conductors, at which contact pieces are formed to connect to the contacts of each stage. Similarly to the above, by inserting the connector insertion portion 2 of the laminated flexible flat cable 17 into the insertion groove 8 of the female connector 3, the ends 15A,
15B, 15C and the first, second, and third contacts 9A, 9B, and 9C of the female connector 3 are in contact with each other at each stage.

The present invention includes a case where the stepped portion described in each embodiment is formed only on one side of the connector insertion portion 2.

[0020]

Effects of the Invention As described above, according to the present invention, in a multi-pole connector of the type in which a wiring board, a flexible sheet, and a flexible flat cable are inserted into the insertion groove of a female connector to make contact, the above-mentioned wiring By shifting the positions of the boards, etc. and stacking them in a stepped manner, contact pieces are arranged in parallel at each stage, and the contact groups arranged in the insertion grooves of the female connector correspond to the contact pieces at each stage. By arranging contacts and contact pieces in a stepped manner, it is easy to increase the number of contacts and contact pieces, and it is possible to easily increase the number of contacts and contact pieces within the limited dimensions of the wiring board without the technical problem of narrowing the pitch as in the past. multipolarization can be advantageously achieved. In addition, a sufficient contact area between the contact piece, conductor, and contact can be ensured to effectively achieve highly reliable and high-density connection.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a connector insertion portion at the end of a wiring board showing a first embodiment of the present invention.

FIG. 2 is a sectional view of the connector insertion portion.

FIG. 3 is a perspective view of a connector insertion portion of a laminated wiring board showing a second embodiment of the present invention.

FIG. 4 is a sectional view of a connector insertion portion of the laminated wiring board.

FIG. 5 is a plan view of a connector insertion portion of a laminated flexible sheet showing a third embodiment of the present invention.

FIG. 6 is a side view of the connector insertion portion of the laminated flexible sheet.

FIG. 7 is a plan view of a connector insertion portion of a laminated flexible flat cable showing a fourth embodiment of the present invention.

FIG. 8 is a side view of the connector insertion portion of the laminated flexible flat cable.

FIG. 9 is a perspective view, partially in section, of an embodiment of the female connector into which the connector insertion portion shown in each of the above embodiments is inserted and connected.

FIG. 10 is a cross-sectional view showing the connection state of the connector insertion portion and the female connector using an example of a laminated wiring board of the second embodiment.

[Explanation of symbols]

1 Wiring board 2
Connector insertion part 3
Female connector 6A to 6C
First to third contact pieces 9A to 9C
First to third contacts 11A to 11C wiring board 11 laminated wiring board 12,
15 Parallel conductor

Claims (4)

[Claims] Claim 1: The connector insertion portion at the end of the wiring board is formed in a step-like manner so that the width gradually increases from the starting end of insertion into the female connector to the end of insertion, and a large number of contact pieces are arranged in parallel at each step. On the other hand, in the board insertion groove of the female connector, a large number of contacts are arranged in a stepped manner corresponding to the arrangement of the contact pieces, and the end of the wiring board is inserted in a stepped manner into the board insertion groove of the female connector. 1. A multi-polar connector characterized in that, by inserting the insertion portion, the contact pieces of each stage of the insertion portion and the corresponding contacts of each stage of the female connector are brought into contact with each other. 2. A plurality of wiring boards are stacked, and the connector insertion portions at the ends of each wiring board are shifted from the insertion start end side to the insertion end side to form a staircase shape, and a large number of A large number of contacts are arranged in parallel in the board insertion groove of the female connector in a stepped manner corresponding to the arrangement of the contact pieces, and the laminated wiring is arranged in the board insertion groove of the female connector. A multi-pole connector characterized in that, by inserting the connector insertion portion of the board, the contact pieces of each stage of the insertion portion come into contact with the corresponding contacts of each stage of the female connector. 3. A staircase in which a plurality of flexible sheets having a large number of parallel conductors are stacked and the ends of each flexible sheet are shifted from the insertion start end to the insertion end side into the female connector. A connector insertion portion is formed by arranging the ends of the conductor group in parallel in each stage, and a large number of contacts are arranged in the sheet insertion groove of the female connector corresponding to the arrangement of the contact pieces. By inserting the connector insertion portion of the laminated flexible sheet into the sheet insertion groove of the female connector in a stepwise manner, the contact piece of each stage of the insertion portion and the corresponding female connector are inserted. A multi-pole connector characterized in that the contacts of each stage are configured to make contact with each other. 4. A plurality of flexible flat cables having a large number of parallel conductors are stacked, and the ends of each flexible flat cable are shifted from the insertion start end to the insertion end side into the female connector. forming a step-like shape, and forming a connector insertion portion by arranging ends of the conductor group in parallel at each step;
On the other hand, a large number of contacts are arranged in a stepped manner in the cable insertion groove of the female connector, and the connector insertion part of the laminated flexible flat cable is inserted into the cable insertion groove of the female connector. A multi-pole connector characterized in that a contact piece in each stage and a corresponding contact in each stage of the female connector are in contact with each other.