JP2589154Y2 - connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector used for connecting electric wiring members of an automobile or the like.

[0002]

2. Description of the Related Art In this type of conventional connector, terminals housed in a connector housing are locked by lances of the connector housing. In addition, a terminal double locking piece has been inserted into the lance escape space between the lance and the inner surface of the connector housing. When the terminal double locking piece is inserted into the lance escape space as described above, it can be determined whether or not the terminal is correctly locked to the lance by whether or not the insertion is possible. Further, by leaving the terminal double locking locking piece inserted in the lance escape space, the lance can be prevented from escaping, and the terminal can be prevented from dropping out of the connector housing.

[0003] In this case, the terminal double locking piece is not intended to ensure the contact between the terminal and the mating terminal.
The thickness of the tip of the terminal double locking piece is set to a value as close as possible to the height of the clearance gap so that the lance can be moved up and down at the tip of the terminal double locking piece.

[0004]

In such a connector, when a mating terminal is inserted into the terminal, the mating terminal insertion hole of the terminal is set to be narrow so that an electrical connection state can be reliably obtained. The insertion resistance when inserting the mating terminal is large, so in a multi-pole connector, the total insertion force when inserting the mating multi-pole connector is due to the accumulation of the insertion force for each terminal. There was a problem that it could not be inserted without applying force. An object of the present invention is to provide a connector capable of reliably obtaining an electrical connection state even when the insertion force is reduced.

[0005]

The structure of the present invention for achieving the above object will be described.
The terminal 2 accommodated in the connector housing 1 inserts the locking projection 3a of the lance 3 of the connector housing 1 into the locking window 2a .
In the connector is locked by the said terminal 2
Is inserted from the entrance of the mating terminal insertion hole 2c.
The tongue piece 2b is provided by being folded back into the hole 2c.
Standing in the mating terminal insertion hole 2c from the edge of the locking window 2a.
Raised to the tip side of the tongue piece 2b from the locking window 2a side
Auxiliary tongue 2d is provided so as to overlap, the lance 3
In the clearance space 4 between the lance 3 and the inner surface of the connector housing 1 , the lance 3 is pushed up and its locking projection is formed.
3a is pushed into the locking window 2a of the terminal 2 so that the terminal 2
2. Double locking and pushing of the locking projection 3a
To press the tongue 2b through the auxiliary tongue 2d by
Accordingly, a terminal double locking and terminal push-up piece 6 for pressing the tongue piece 2b against the mating terminal 5 is inserted.

[0006]

[Action] When used in this manner the terminal double locking and terminal push strip 6, may have been greater than the conventional one mating terminal insertion holes 2c provided in the terminal 2. Therefore, the partner terminal 5
Can be inserted into the terminal 2 with a small insertion force, and even if a multi-pole structure is used, the connection of the mating connector can be performed with a smaller insertion force than in the related art.

[0007] In a state of inserting the mating terminal 5, lance escape when inserting the terminal double locking and terminal push piece 6 into the gap 4, La in the terminal double locking piece and the terminal push piece 6
The auxiliary tongue piece 2d of the terminal 2 via the locking projection 3a of the
The tongue 2b is pushed up and a part of the tongue 2b is
5 , and the electrical connection between the terminal 2 and the mating terminal 5 is ensured.

[0008]

1 and 2 show an embodiment of a connector according to the present invention. In the connector of this embodiment, a terminal 2 is housed in a connector housing 1 and the terminal 2
The locking projection 3 a of the lance 3 of the connector housing 1 is inserted into the locking window 2 a on the bottom surface of the terminal 2 and locked to the connector housing 1. In the terminal 2, a tongue piece 2b is disposed in a folded shape from the tip of the bottom surface into the mating terminal insertion hole 2c. The terminal 2 is provided with an auxiliary tongue piece 2d adjacent to the locking window 2a.

A lance escape space 4 is provided between the lance 3 and the inner surface of the connector housing 1. In the lance escape space 4, the terminal 2 is double-locked and the terminal 2 is pushed up via the lance 3, and the locking projection 3 a of the lance 3 connects the tongue 2 b via the auxiliary tongue 2 d. A terminal double locking and terminal lifting piece 6 to be pressed against the counterpart terminal 5 is inserted. For this reason, a tapered surface 6a whose height gradually increases toward the rear portion is provided on the rear upper surface of the terminal double locking and terminal lifting piece 6.

By using such a terminal double locking and terminal push-up piece 6, the counterpart terminal insertion hole 2c provided in the terminal 2 can be made relatively larger than before. For this reason, the mating terminal 5 can be inserted into the terminal 2 with a small insertion force, and even if the connector has a multipolar structure, the mating connector can be connected with a smaller insertion force than before.

In the state where the mating terminal 5 is inserted, when the terminal double locking and terminal pushing piece 6 is inserted into the lance escape space 4, the terminal 2 is double locked and as shown in FIG. The auxiliary tongue piece 2d of the terminal 2 is pushed up by the terminal double engagement piece and terminal push-up piece 6 via the engagement projection 3a of the lance 3, and the tongue piece 2b is pushed up by the rise of the auxiliary tongue piece 2d. The tongue piece 2b is pressed against the mating terminal 5. Therefore, the electrical connection between the terminal 2 and the partner terminal 5 can be reliably performed.

[0012]

As described above, the connector according to the present invention performs double locking of terminals and locking projections of lances.
The terminal's auxiliary tongue piece and the tongue piece are pressed into contact with the mating terminal via the terminal, and the terminal push-up piece is used. Can be. For this reason, the mating terminal can be inserted into the terminal with a small insertion force, and the connection of the mating connector can be performed with a smaller insertion force than in the related art even with a multipolar structure.

[0013] In a state where the insertion of the mating terminal, by inserting the terminal double locking and pin push piece lance relief gap, ra the terminal double locking pieces and pin push piece
Auxiliary tongue and tongue is pushed up tongue piece terminal is to be pressed against the mating terminal through the locking projection of Nsu, it is possible to reliably obtain electrical connection between the terminal and the mating terminal it can.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part showing a process of inserting a terminal double locking piece and a terminal push-up piece into a lance escape space in an embodiment of the connector according to the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the connector according to the embodiment of the present invention, showing a state where a terminal double locking piece and a terminal push-up piece are inserted into a lance escape space;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Connector housing, 2 ... Terminal, 2a ... Locking window, 2
b: tongue piece, 2c: mating terminal insertion hole, 2d: auxiliary tongue piece, 3
... Lance, 3a ... Latch projection, 4 ... Lance escape gap, 5
... Material terminal, 6 ... Terminal double locking and terminal push-up piece, 6a
... tapered surface.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsuhiko Nishimura, 380 Takanose, Oji, Toyosato-cho, Inukami-gun, Shiga Prefecture (72) Yoshinobu Kawamura 380 Takanose, Oaza, Toyosato-cho, Inukami-gun, Shiga Omi Electric Wire Co., Ltd. (72) Inventor Takashi Fujiwara 380 Takanose, Toyosato-cho, Inoue-gun, Shiga Prefecture Omi Electric Wire Co., Ltd. (56) References JP-A-1-18783 (JP, A) ⁶ , DB name) H01R 13/193 H01R 13/42 H01R 23/00

Claims (1)

(57) [Scope of request for utility model registration] Inserting the locking projection (3a) of claim 1 connector lance housing (1) accommodated in the terminal in (2) its Kakaritomemado the connector housing (2a) (1) (3)
The terminal (2) has an entrance of the mating terminal insertion hole (2c).
From the other terminal insertion hole (2c).
(2b) and an edge of the locking window (2a)
From the other terminal insertion hole (2c)
The tip of the tongue piece (2b) overlaps from the locking window (2a) side.
An auxiliary tongue (2d) is provided to
The lance (3) is pushed into the clearance lance (4) between the lance (3) and the inner surface of the connector housing (1).
Raise the locking projection (3a) to the locking window of the terminal (2).
(2a), the terminal (2) is double-locked, and the locking projection (3a) is pressed into the auxiliary terminal.
Pressing the tongue piece (2b) through the auxiliary tongue piece (2d)
And a terminal push-up piece (6) for pressing said tongue piece (2b) against said mating terminal (5) .