JPS61263075A - Connector housing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION ``Industrial Application Field'' The present invention relates to a connector housing, and more particularly to a terminal locking structure of a connector housing that prevents housed terminals from being pulled out backwards.

"Prior Art" and "Problems to be Solved by the Invention" The terminal locking structure of a conventional connector housing has a primary locking mechanism that primarily locks the terminals using a lance or a locking piece, and a terminal locking mechanism that locks the terminals in the housing position. Many are equipped with a secondary locking mechanism for full-scale locking.

The secondary locking mechanism is one in which a separate member such as a spacer is inserted behind the terminal to prevent it from being removed, and the other is a cantilevered locking lid that moves via a hinge. There are two types of terminals that are provided with a locking lid and that engage the terminal with the closed locking lid to prevent disconnection.

However, the former of the conventional secondary locking mechanisms described above requires the insertion of a separate member, making the locking work troublesome.
The number of parts increases, resulting in high costs and troublesome parts management, as well as problems such as forgetting to insert spacers or not inserting them enough. In addition, in the latter case, the cantilevered locking lid tends to get tangled with other parts when assembling the wire harness, creating an obstacle to work, and the hinge part may be damaged due to contact interference with other parts. Moreover, the presence of the movable locking lid makes the connector housing unstable in shape, making it difficult to align and sequentially transport the connector housing to facilitate assembly work.

It is an object of the present invention to solve the above-mentioned conventional difficulties.

``Means for Solving the Problems'' The present invention achieves the above objects by ``providing a window hole in the middle of a terminal accommodating chamber, and a pair of end hinge points formed on both edges of the window hole. A locking member integrally formed through the locking member is provided, and the locking member bridges the window hole portion in a chevron shape with one or more intermediate hinge points in the middle. A locking structure in which the intermediate hinge point is reversely displaced to the inside of the center line of the end hinge point by pressing and reversing, and the locking member is engaged with the terminal to prevent the terminal from retreating.

"Examples" and "Operations" Hereinafter, the structure and operation of the present invention will be explained in detail with reference to Examples. First, referring to FIG. 1 showing a first embodiment, the figure shows a female connector housing 1 (hereinafter simply referred to as male housing 1) in which male terminals 4 are inserted and accommodated in upper and lower terminal accommodating chambers 3. A window hole 6 is formed above or below the terminal housing chamber 8, and a pair of end hinge points 8 formed at both front and rear edges of the window hole 6 are inserted into the window hole 6. The locking member 7 is integrally installed as a bridge.

The locking member 7 is formed of a front locking member 7A and a rear locking member 7B that are integrated through an intermediate hinge point 9 provided in the middle, and the intermediate hinge point 9 is a pair of end hinge points. The locking member 7 is located outward from the center line 11 connecting the two points 8 to 8, and the locking member 7 forms a bifurcated chevron shape via an intermediate hinge point 9, and bridges the window hole portion 6. That is, the end hinge point 8 and the intermediate hinge point 9 are made of a smooth resin material forming the male housing 1, and are made of a smooth joint (pure) in which members with the hinge point 8.9 as a node are integrally connected so as to be relatively rotatable. The locking member 7 is not a sliding joint but a node that allows relative rotation of the member due to the elastic deformation of the thin wall part, and the locking member 7 bridges the window hole part 6 with the end hinge point 8 and the intermediate hinge point 9 as nodes. It is formed in the shape of a truss body.

On the inside of the front locking member 7A, there is a step-shaped locking portion that comes into contact with the rear of the protrusion 15 provided on the male terminal 4 in the terminal housing chamber 3 when the locking member 7 is in an inverted position, which will be described later. 10 is formed, and 1. is formed on the outside of the seven front locking members. The pressing portion 12 when the locking member 7 is reversed is formed as the apex of the locking member 7.

In the locking member 7 having the above configuration, when the pressing part 12 is pressed with a fingertip or the like, the front locking member 7A and the rear locking member 7B are elastically deformed and the hinge point 8% due to the external force accompanying the pressing. The bridge installation posture is reversed by the elastic displacement of the window hole 6 and the elastic expansion of the window hole 6, and the window hole 6 is closed by the locking member 7 as shown in FIG. Center line 1 of hinge point 8
1 and the inverted posture is fixed, and the locking part 1
゜ is configured to have a locking structure that abuts on the rear side of the raised portion 15 of the male terminal 4 and secondarily locks the insertion position of the male terminal 4.

Note that the male housing 1 of this embodiment has a male terminal 1 (6
), the lower male terminal 4 has a locking portion 1o of a reversely displaced locking member 7 on a stepped portion 16 provided at the rear of the contact instead of the raised portion 15 of the upper male terminal 4. It is designed so that it will come into contact with you from behind.

Next, a second embodiment of the present invention will be described with reference to FIG. That is, in this embodiment, two terminal accommodating chambers 3 for accommodating female terminals 5 are arranged in parallel, and a female connector housing 2 (hereinafter simply referred to as the female housing 2) has a primary locking mechanism for the female terminals 5 by a locking piece 17. )K.

As a secondary locking mechanism, a locking structure with locking members 7 is provided in a transverse shape, and the single locking member 7 locks the three female terminals 5 in the housing position.

Specifically, a common window hole 6 is formed in the upper part of the two parallel terminal housing chambers 8, and end hinge points 8 are provided at the left and right edges of the window hole 6. At the end hinge point 8 a locking member 7 is bridged to the body.

Two intermediate hinge points 9 are provided between the locking members 7, and a symmetrical pair of end locking members 7C integrally connected to the end hinge points 8 and the intermediate hinge points 9 are provided.
Main locking member 7 integrally connected to end locking member 7C via
D, and the intermediate hinge point 9 is located along the center line 1 of the end hinge point 8 as in the first embodiment.
It is located outside of 1. That is, the locking member 7 of this embodiment forms a truss body shape with a pair of end hinge points 8 and two intermediate hinge points 9 as sliding joints, and is bridged transversely into the hole portion 6. be.

Then, the intermediate hinge point 9 on one side of the main locking member 7D
When the part is pressed, the end locking member 7C on one side 7 rotates around its own end hinge point 8 and is reversely displaced as shown in FIG. 2 O, and then the main locking member 7D on the other side When pressed, as shown in FIG. is invertedly displaced inside the centerline 11 of the end hinge point 8. The front edge of the inverted main locking member 7D is configured to abut the stepped portion 16 of the female terminal 50 from the rear, thereby preventing the female terminal 5 from coming off.

Note that the height of the front and rear edges of the window hole 6 in this embodiment is varied, in order to facilitate removal of the mold when integrally molding the locking member 7.

The connector housing of the present invention having the above structure has a hinge-like end hinge point 8. A locking member 7 is integrally connected to the window hole portion 6 through a bridge and has one or more intermediate hinge points 9 in the form of a bridge. When the locking member 7 is pressed and reversed, the connector housing Since the structure locks the inner terminal, the restoring moment remaining at the end hinge point 8 and intermediate hinge point 9 of the locking member 7 after inversion is extremely small, and the inverted posture of the locking member 7 is stabilized.

Therefore, even if the terminal 4.5 is pulled out, there is no risk that the external force will cause the locking member 7 to restore its original shape or lose its locking position to the terminal 4.5, resulting in extremely stable locking performance. It has the effect of

Furthermore, since the locking member 7 is extremely easily reversed and displaced with a "snap" by simply pressing, the secondary locking operation of the terminal can be done in one touch, and the locking work is extremely easy compared to the conventional structure described above. It becomes easier.

In addition, since the locking member 7 has a bridging structure integrally formed on both edges of the window hole portion 6, it solves the problems of the prior art based on separate members, and also has a regularized shape. Since there is less entanglement and interference with other parts, it improves work efficiency when assembling the wire harness, and it also makes it easier to align and sequentially feed the connector housing, making it easier to assemble the wire harness in series, including automatic insertion of terminals into the connector housing. There are advantages such as promoting automation of assembly.

Further, in the connector housing of the first embodiment, the locking member 7 is provided as a bridge in the front-rear direction of the terminal 4, and the front locking member 7A comes into contact with the protrusion 15 of the terminal 4 so as to push it from behind. Therefore, when the amount of insertion of the terminal 4 is insufficient, a component force is generated to advance the terminal 4, and there is a special effect of automatically correcting the half-insertion posture of the terminal 4.

In addition, in the connector housing of the second embodiment, the locking member 7 descends and inverts from above the terminal 4, so that when the amount of insertion of the terminal 4 is insufficient, the locking member 7 is attached to the stepped portion of the incorrectly inserted terminal 4. 16 and cannot be reversed, and a faulty insertion terminal can be detected.

Note that the amount of inversion of the locking member 7 in the above configuration of the present invention is determined from the viewpoint of stability of the inverted posture, by changing the position of the intermediate hinge point 9 before and after inversion to the center line 1 of the end hinge point 8.
It is preferable to make the amount approximately equal from 1.

Furthermore, the present invention provides a structure in which the locking member 7 having a single intermediate hinge point structure shown in the first embodiment is installed as a bridge on the left and right side edges of the window hole 6, or the locking member 7 having a single intermediate hinge point configuration shown in the first embodiment is installed as a bridge between the plurality of intermediate hinge points shown in the second embodiment. A point-structured locking member 7 may be installed on the front and rear edges of the window hole 6 to lock a single or multiple terminals, or the terminal housing chambers of the connector housing may be divided into groups to hold a single terminal in each group. By providing the locking member 7 at the intermediate hinge point and the locking members 7 at a plurality of intermediate hinge points 9, application changes such as preventing the terminals from retreating in each group can be made.

"Effects of the Invention" As described above, the connector housing of the present invention improves the workability of inserting the terminals by making the terminal locking work easier, and also stabilizes the terminal locking performance. Furthermore, there are many effects such as improving the workability of assembling the wire harness and promoting automation of assembling the wire harness.

[Brief explanation of the drawing]

Figure 1: shows a connector housing according to the first embodiment of the present invention, (G) is its front view, (B) is its top view, (C) is its front view with the locking member inverted, and Figure 2 shows the connector housing of the second embodiment of the present invention, 2) is a front view thereof, 0 is a side view showing its action, 0 is a front view with the locking member inverted. In the figure, ■ is a side view with the locking member inverted. Main symbols: 1: Female connector housing, 2: Female connector housing, 8: Terminal housing chamber, 4: Male terminal, 5: Female terminal, 6 : window hole part, 7: locking member, 8: end hinge point, 9: intermediate hinge point, 11: center line of end hinge point, 12: pressing part, 15: raised part, 16 two-step part patent application Person Sumitomo Wiring Systems Co., Ltd. Patent Attorney Masami Oka Figure 1 (B) 7B 7A 1st cause (C) 1st cause (A) Figure 2

Claims (1)

[Claims] (1) A window hole portion is provided in the terminal accommodating chamber, and the window hole portion is integrated with a pair of end hinge points on both sides of the window hole portion, and has one or more A locking member having a chevron shape having an intermediate hinge point is provided as a bridge, and when the locking member is pressed and reversed, the intermediate hinge point is reversely displaced inside the center line of the pair of end hinge points. . A connector housing characterized by a locking structure for engaging the locking member with a terminal.