JP2598586Y2 - Connector connection structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a connector which is capable of forming two kinds of circuits by connecting the elastic contact pieces and connecting the elastic contact piece to the circuit board by preventing the elastic contact pieces of the terminal from settling. It relates to a connection structure.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional connector connection structure described in Japanese Utility Model Laid-Open Publication No. 4-6186.
This structure allows a pair of pin terminals 22 and 22 to pass through a connector housing 21 made of a synthetic resin, and the pin terminals 22 and 22 in a connection space 23 of the connector housing 21.
22 is bent inward to form a pair of opposing elastic contact pieces 24, 24, and a circuit board 26 is inserted into a gap 25 between the pair of elastic contact pieces 24, 24.
The elastic contact pieces 24 and the circuit conductors 27 of the circuit board 26 are mutually connected.

However, in the above-described conventional structure, the amount of flexural displacement of the elastic contact piece 24 with respect to the circuit board 26 is small. 24 has a problem in that the contact with the circuit conductor 27 deteriorates.
Further, the connection pattern is limited only to the connection between the pin terminal 22 and the circuit board 26, and the variety of circuit connection is poor.

[0004]

SUMMARY OF THE INVENTION In view of the above points, the present invention not only diversifies circuit connections, but also
Even if the circuit board is repeatedly inserted and removed, the elastic contact pieces of the terminals
An object of the present invention is to provide a connection structure of a connector that can ensure reliable contact without falling .

[0005]

In order to achieve the above object, the present invention provides a connector housing in which each contact terminal is paired.
And the elastic contact pieces of each contact terminal contact each other
And the circuit board is inserted and connected between the elastic contact pieces.
In the connection structure of the connector, the elastic contact piece is
Abutting against the projecting part of the
A first bending portion, and the first bending portion following the first bending portion.
A second curved portion curved in the opposite direction to the second curved portion,
Subsequently, a straight exposed portion protruding toward the circuit board,
Following the exposed portion, a curved tip portion that contacts each other is provided.
(Claim 1). Of the second curved portion
It is also effective to form a reinforcement on the inner surface to prevent sag
(Claim 2).

[0006]

According to the structure of the first aspect, the first curved portion and the second bay are provided.
The elastic contact piece is formed by two consecutive curved portions
The spring force is increased, and the exposed part makes strong and reliable contact with the circuit board.
You. The straight exposed part makes sure contact with the circuit board by surface contact
You. The connection between the elastic contact pieces and the elastic
It means that two connection patterns of connection with the board can be obtained
Not even. Further, in the configuration of claim 2, the exposed portion
A reinforcing portion is formed on the inner surface side of the second curved portion which is a bending fulcrum.
As a result, elastic contact is possible even due to large bending deformation of the exposed part
No settling occurs.

[0007]

1 to 4 show a connection structure of a connector according to the present invention. The connection structure is a circuit board 1 (FIG. 4)
The circuit board 1 is inserted into the female connector 2 in which the
A male connector 5 in which a pair of contact terminals 4, 4 are vertically connected to the circuit conductors 3, 3 on the front and back surfaces is fitted and connected, and the elastic contact pieces 6, 6 of the pair of contact terminals 4, 4 are provided.
An intermediate bending portion (second bending portion) which is an elastic bending support point of 6
(FIG. 1) A reinforcing ridge 8 for preventing sag is formed, and the pair of opposing elastic contact pieces 6 and 6 are brought into contact with each other.
I'm making it.

The configuration of the male connector 5 is disclosed in Japanese Utility Model Application No. 4-150.
In the same manner as described in No. 83, an insertion space 10 for the circuit board 1 is provided at the center of the connector housing 9, and openings 12, 12 communicating with the space 10 from the upper and lower terminal receiving chambers 11, 11 are opposed to each other. The elastic contact pieces 6 of the contact terminals 4 inserted into the respective terminal accommodating chambers 11 are brought into contact with the protruding portions 13 in front of the accommodating chambers.
Is projected from the opening 12 into the space 10.

In this embodiment, the projecting length of the elastic contact piece 6, that is, the projecting angle is set to be large, and the curved end portions 14, 14 of the pair of elastic contact pieces 6, 6 are brought into contact with each other as shown in FIG. ing. The projection length of the elastic contact piece 6 is increased to increase the amount of bending displacement with respect to the circuit board 1. reinforcing ribs (complement for the prevention or
8 ) is bulged in the terminal longitudinal direction.

The contact terminal 4 has a wire crimping portion 15 on one side,
On the other hand, a box-shaped part 16 is provided, and the elastic contact piece 6 is formed in the box-shaped part 16, and a distal end of the elastic contact piece 6 is formed through an opening 17 provided in a bottom wall 16 a of the box-shaped part 16. Can be projected by pressing the housing projection 13.

The elastic contact piece 6 extends inward from the tip of the box-shaped portion 16 as shown in FIG. 3, and has a contact inclined portion (contact portion) 6a with respect to the housing protrusion 13; A hanging portion 6b which is bent from the portion 6a toward the opening 17 via the first bending portion 19, and a wire crimping portion which is bent at a right angle or slightly acute angle from the hanging portion 6b, passes through the second bending portion 7, and extends along the opening 17; And a straight exposed portion 6c extending to the 15th side. The reinforcing ridge 8 is bulged at the center of the inside of the second curved portion 7 between the hanging portion 6a and the exposed portion 6c by punching or the like.

As shown in FIG. 2, the elastic contact piece 6 short-circuits the upper and lower terminals 4 and 4 in a loop shape with the tips 14 in contact with each other, and the electric wires 18 and 18 connected to the terminals 4 and 4. A first joint circuit is configured. As shown in FIG. 4, the circuit board 1 is inserted between the pair of elastic contact pieces 6, 6 by fitting the male and female connectors 5 , 2 so that each of the elastic contact pieces 6, 6 becomes a circuit conductor of the circuit board 1. The third connection is made separately to make a second connection circuit connecting the circuit board 1 and the electric wire 18 of the terminal 4.

[0013]

As described above, according to the invention of claim 1,
For example, two consecutive curves, a first curve and a second curve
The exposed part increases the spring force of the elastic contact piece
Makes strong contact with the circuit board, inserts and removes the circuit board repeatedly
The elastic contact piece does not settle even when it is
Reliability is improved. Further, according to the invention of claim 2,
If there is a reinforcing part inside the second curved part which is the bending fulcrum of the exposed part
Is formed, the large bending deformation of the exposed part
Also, no sagging of the elastic contact piece and reliable electrical connection
The performance is further improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a terminal connection state of an embodiment of a connector connection structure according to the present invention.

FIG. 2 is a longitudinal sectional view showing a connection state between terminals when the terminals are inserted.

FIG. 3 is a perspective view showing an elastic contact piece of a terminal.

FIG. 4 is a longitudinal sectional view showing a connection state between a terminal and a circuit board of a mating connector.

FIG. 5 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Circuit board 4 Contact terminal 6 Elastic contact piece 6a Contact inclined part (contact part) 6c exposure part 7 Intermediate curved part (second curved part) 8 Reinforcement protrusion (reinforcement part) 9 Male connector housing 13 Projection part 14 Tip Part 19 first bending part

Claims (2)

(57) [Scope of request for utility model registration] A contact terminal is provided in a connector housing.
And the elastic contact pieces of each contact terminal contact each other
And the circuit board is inserted and connected between the elastic contact pieces.
In the connection structure of the connector, the elastic contact piece is provided on the protrusion of the connector housing.
A contact portion, a first curved portion following the contact portion,
Following the curved portion, the second curved portion in the opposite direction to the first curved portion
A second curved portion, following the second curved portion, facing the circuit board;
And a straight exposed portion that protrudes and contacts each other following the exposed portion.
A connection structure for a connector, comprising: a curved tip portion to be touched . 2. The method according to claim 1, further comprising a step of preventing the second curved portion from being set inside.
2. The connector connection structure according to claim 1 , wherein a reinforcing portion is formed .