JP2575646Y2 - 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 whose terminal shape is devised in order to prevent a decrease in assemblability due to a hanging of an electric wire in an automatic assembling process of the connector.

[0002]

2. Description of the Related Art FIG. 4 is a longitudinal sectional view showing a conventional connector. The connector 41 has upper and lower terminal receiving chambers 43 and 44 formed in a connector housing 42, and an insertion slit 46 for a mating circuit board 45 is provided between the terminal receiving chambers 43 and 44 from the front end of the housing. The terminals 47 and 48 are accommodated in the accommodation chambers 43 and 44 in a belly-to-bag manner,
The elastic contact pieces 51, 5 of the terminals 47, 48 are inserted through the openings 49, 50 of the terminal receiving chambers 43, 44 facing the insertion slit 46.
2 are opposed to each other, and each of the contact pieces 51 and 52 is elastically connected to the surface conductor of the circuit board 45.

As shown in FIG. 5, the terminals 47 (48) have both side walls 54, 54 standing on one side of a bottom plate 53 and elastic contact pieces 51 protruding between the side walls 54, 54. On the other side of the bottom plate portion 53, an electric wire crimping portion 56 for the terminal portion of the electric wire 55 is formed so as to project in the same direction as the projecting direction of the elastic contact piece 51.

In a partition wall 57 between the upper and lower terminal receiving chambers 43, 44 of the connector housing 42, flexible locking arms 60, 61 for rear end shoulders 54a, 59a of side walls 54, 59 of the terminals 47, 48 are provided. Each terminal 47, 4
The arm 8 is locked by the arms 60 and 61 in the housing chambers 43 and 44 so as to face each other.

The operation of crimping the wires of the terminals 47 and 48 and the operation of inserting the terminals 47 and 48 into the housing are performed by an automatic machine. That is,
The bottom plate portion 53 of the terminal 47 is placed on a base (not shown), and the wire crimping portion 56 is crimped to the wire 55 with a crimping jig (not shown), and the terminal 47 is grasped by a clamp (not shown) as it is. Then, the connector housing 42 is inserted into the lower terminal accommodating chamber 43. Next, the housing 42 is attached to a rotor (not shown).
(FIG. 4 shows a state after the inversion), and the terminal 48 is similarly inserted into the other terminal accommodating chamber 44 located on the lower side.

However, the conventional connector 41 has a problem that when the connector housing 42 is turned over, the electric wire 55 of the upper terminal 47 hangs down to hinder the insertion of the lower terminal 48. Also, the circuit board 4
5 with the jig rod 62 inserted through the insertion slit 46.
When the terminals 47 and 48 are pulled out by disengaging the flexible locking arms 60 and 61 to insert the terminals, the elastic contact pieces 51 and 52 of the terminals 47 and 48 may be deformed or damaged by the tip of the jig rod 62. There was also a problem of doing.

[0007]

SUMMARY OF THE INVENTION In view of the above points, the present invention allows terminals to be securely inserted into the upper and lower accommodation chambers of the connector housing without changing the current automatic assembly process, and to remove the terminals. An object of the present invention is to provide a connector capable of preventing deformation and damage of an elastic contact piece caused by a jig bar at the time of removal.

[0008]

In order to achieve the above object, the present invention provides a connector having a resilient contact piece on one side and a terminal having an electric wire crimping part on the other side, such that the resilient contact piece faces the abdomen. in each instrumentation <br/> Chakusuru connector in the terminal receiving chambers of the upper and lower housing, together with the the protruding direction of the wire crimping portion and the resilient contact piece to protrude in the opposite direction, the elastic
The locking shoulder in the opposite direction to the direction in which the
A flexible locking arm protruding from the armature and facing the locking shoulder.
The flexible locking arm and the terminal are provided on the connector housing.
To insert a jig rod from outside to release the engagement with
Features a connector with a mouth formed in the connector housing
And

[0009]

Since the elastic contact piece and the wire crimping portion are provided on opposite sides, the terminal can be directly inserted into the terminal housing above the connector housing after the wire is crimped and connected to the wire crimping portion. As a result, when the connector housing is turned over, the terminals are located on the lower side, and the wires do not hinder the insertion of the terminals into the upper terminal receiving chamber. Further, since the locking shoulder and the flexible locking arm are located on the opposite side of the elastic contact piece , the engagement between the flexible locking arm and the terminal is released.
At this time, the jig rod inserted into the opening does not interfere with the elastic contact piece, and the elastic contact piece is prevented from being deformed or damaged.

[0010]

FIG. 1 is a longitudinal sectional view showing one embodiment of a connector according to the present invention. The connector 1 has elastic contact pieces 7, 8 of the terminals 5, 6 opposed to each other in the upper and lower terminal accommodating chambers 3, 4 of a synthetic resin connector housing 2, respectively.
In addition, the wire crimping portions 9, 10 of the terminals 5, 6 are arranged back to back.

The terminals 5 and 6 have the same shape.
As shown in the perspective view of the terminal 5, a box body 12 is formed in front of the bottom plate 11 and an electric wire crimping section 9 is formed in the rear. The elastic contact piece 7 is fixed, and the curved intermediate portion (electric contact portion) 7 b of the elastic contact piece 7 is
The elastic contact piece 7 protrudes in the direction opposite to the direction in which the wire crimping portion 9 protrudes by projecting from the opening 14 provided in the bottom plate portion 11 to the outside. The free end portion 7c of the elastic contact piece 7 is bent slightly and folded back, and
Can be stopped against the bent end portion 13a of the end portion.

The connector housing 2 (FIG. 1)
As in the prior art, a slit 16 for inserting the mating circuit board 15 is provided at the distal end between the upper and lower terminal accommodating chambers 3 and 4, and projecting openings 17 for the elastic contact pieces 7 and 8 facing the slit 16 are provided. 18 is provided, and a box body is provided above the vertical partition walls (not shown) of the terminal accommodating chambers 3 and 4.
Locking shoulder 12a of the rear end parts 12 and 19, it is obtained by fixing the base of the resilient locking arm 20, 21 for 19a. The flexible locking arms 20 and 21 are installed in the dead spaces of the terminal accommodating chambers 3 and 4 so as to face the wire crimping portions 9 and 10 of the terminals 5 and 6 vertically.

The terminal housing chamber 3 of the connector housing 2
4, terminals 5 and 6 are inserted from the rear openings 22 and 23, respectively. The insertion of the terminals 5 and 6 is performed in order from the upper terminal accommodating chamber 3 following the crimping step of the wire crimping parts 9 and 10 by an existing automatic machine similar to the conventional one. That is, the elastic contact piece 7
The terminal 5 can be inserted along the intermediate partition 24 of the connector housing 2 because the wire crimping portion 9 projects upward and the wire crimping portion 9 projects upward.

Next, the connector housing 2 is turned over, and the terminal 6 is similarly inserted into the other (lower) terminal accommodating chamber 4 shifted to the upper side. Here, the electric wire 2 of the terminal 5 inserted first
Since 5 is located on the lower side, it does not obstruct the insertion path of the terminal 6 to be inserted later.

[0015] In addition, the locking shoulder of the box section 12, 19 12
Since the a and 19a are located on the opposite sides of the elastic contact pieces 7 and 8, the flexible locking arms 20, 21 provided on the outer side of the connector housing 2 abut against the locking shoulders 12a, 19a, and When disengagement of the stop arms 20 and 21, a jig rod (not shown) can be operated not through the inside of the housing 2 but through the outer openings 26 and 27. Therefore,
There is no need to deform or damage the elastic contact pieces 7 and 8 of the terminals 5 and 6 with the jig bar as in the related art. In addition, locking shoulder
Portions 12a and 19a are formed at the rear ends of the box portions 12 and 19.
Therefore, it has no flexibility. Therefore, the flexible locking arm
When the engagement between the arms 20 and 21 and the locking shoulders 12a and 19a is released
The locking shoulders 12a, 19a have flexible locking arms 20, 21 respectively.
And the locking shoulders 12a, 19 after disengagement.
a and the flexible locking arms 20 and 21 are not deformed and
Absent.

In FIG. 1, reference numerals 28 and 29 denote locks of the flexible locking arms 20 and 21 and rear end standing pieces 9 of the terminals 5 and 6, respectively.
5A and 5B show an integral insertion lock member serving both as a lock for a and a and a part of the outer wall of the housing 2. In FIG. 2, the free end 7c of the distal end of the elastic contact piece 7 of the terminal 5 may be fixed to the top plate 13 and the base end 7a may be a free end. As shown in FIG. 3, the elastic contact piece 30 extends to the tip of the bottom plate part 32 of the terminal 31 and is folded back into the box body part 33, and the curved electric contact part 34 is connected to the outside through the opening 35 of the bottom plate part 32. It is also possible to protrude.

[0017]

As described above, according to the present invention, one terminal can be first inserted into the terminal receiving chamber on the upper side of the connector housing. The sagging of the wire does not get in the way,
The other terminal can be easily inserted into the other terminal receiving chamber that has been moved upward. Therefore, the terminals can be securely inserted into the terminal housing chambers above and below the connector housing without changing the current automatic assembly process (for example, adding a step of inverting the terminals). Also, since the locking shoulder of the terminal and the flexible locking arm of the connector housing are arranged on the opposite side of the elastic contact piece, the flexible locking arm and the terminal
When releasing the engagement between the jig rod is inserted into the opening does not interfere with the resilient contact piece can be prevented with deformation and scratches of the resilient contact piece. Furthermore, since the locking shoulder is not flexible,
Upon release, the locking shoulder does not follow the flexible locking arm. Follow
As long as the flexible locking arm is operated with the jig bar, the locking shoulder
Disengage securely and easily without damaging the part
be able to.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a connector according to the present invention.

FIG. 2 is a perspective view showing one embodiment of a terminal used in the same manner.

FIG. 3 is a perspective view showing another embodiment of the terminal.

FIG. 4 is a longitudinal sectional view showing a conventional connector.

FIG. 5 is a perspective view showing terminals used in the same manner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector 2 Connector housing 3, 4 Terminal accommodating chamber 5, 6 Terminal 7, 8 Elastic contact piece 9, 10 Wire crimping part 12a, 19a Locking shoulder part 20, 21 Flexible locking arm

Claims (1)

(57) [Scope of request for utility model registration] 1. A terminal having an elastic contact piece on one side and a terminal having an electric wire crimping part on the other side are respectively mounted in upper and lower terminal accommodating chambers of a connector housing such that the elastic contact pieces face each other. the connector, wherein with the protruding direction of the wire crimping portion and the resilient contact piece to protrude in the opposite direction, counterclockwise from the protruding direction of the elastic contact piece
A locking shoulder protrudes from the terminal in the paired direction, and the locking shoulder is
Opposing flexible locking arms are provided on the connector housing.
To release the engagement between the flexible locking arm and the terminal.
Opening for inserting the jig bar from outside into the connector housing
A connector characterized by being formed .