JPH10189076A - Mounting structure of connecting terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability and reliability by surely engaging a connecting terminal to an insulator. SOLUTION: This connecting structure is that a connecting terminal 1 connected to a wiring terminal 2 is fixed to an outsert nut 3c embedded in a surface 3a of an insulator 3 by using a fastener. In this case, an insertion part 3g is provided to position the connecting terminal 1 by inserting it to the surface 3a direction against the outsert nut 3c, a lock part 1e is provided to the connecting terminal 1, and a locking part 3d is provided to the insertion part 3g, which conduct slip-off preventive engagement with the lock part, 1e wherein the connecting terminal 1 is in a state of positioning.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection terminal for fixing a connection terminal such as a groove type or a closed type to an outsert nut embedded in an insulator such as a relay box, a fuse box or a terminal box with a fastener. Mounting structure.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional connection terminal mounting structure in which a groove-shaped connection terminal 1 connected to an electric wire terminal 2 has a cutout 1b formed therein and an insert bolt 3i embedded in an insulator 3. After being engaged with the inner protrusion 1f of the notch 1b, the nut 5 attached to the insert bolt 3i is fixedly attached by fastening.

FIGS. 4 and 5 show a connection terminal mounting structure disclosed in Japanese Utility Model Laid-Open Publication No. Hei 6-26141.

[0004] In the mounting structure shown in FIG. 4, a closed-end L-shaped connection terminal 1 connected to an electric wire terminal 2 is inserted from below into a hole 3 k formed in an insulator 3, and a connection inside the hole 3 k is formed. Stop projection 3m
Then, the screw 4 is fixed to the outsert nut 3c by fastening the screw 4 from the through hole 1g formed in the connection terminal 1 to the screw hole 3b of the outsert nut 3c embedded in the insulator 3. .

[0005] In the mounting structure shown in FIG. 5, a closed-end L-shaped connection terminal 1 connected to an electric wire terminal 2 is inserted from below into a hole 3 k formed in an insulator 3, and a connection inside the hole 3 k is formed. Stop groove 3n
Then, the screw 4 is fixed to the outsert nut 3c by fastening the screw 4 from the through hole 1g formed in the connection terminal 1 to the screw hole 3b formed in the outsert nut 3c embedded in the insulator 3. Can be attached

[0006]

However, in the mounting structure of FIG. 3, when a fusible link (not shown) is fixed on the engaged connection terminal 1, the state of the engagement is hidden by the fusible link. Therefore, a connection failure may be caused. If the gap W between the inner protrusions 1f is large, the engagement becomes unstable, and if the gap W is small, the insertability into the screw 3i tends to be poor. There is also a problem that the cost is increased as compared with the case of using.

In the mounting structure shown in FIG. 4, the engagement is insufficient, and the connection terminal 1 is hidden by another member even if it moves when another member is superimposed thereon. There is a problem.

In the mounting structure shown in FIG. 5, the connection terminal 1 must be engaged with the locking groove 3n while sliding it, and there is a problem that workability is poor. Further, since the locking groove 3i is provided in the hole 3k, there is a problem that only the L-shaped connection terminal 1 can be handled.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a connection terminal mounting structure in which the connection terminals can be reliably engaged with an insulator to improve workability and reliability.

[0010]

According to the first aspect of the present invention, there is provided a connection terminal mounting structure for fixing a connection terminal connected to a wire terminal to an outsert nut embedded in a surface of an insulator with a fastener. A connection portion for inserting the connection terminal in the surface direction and positioning the connection terminal with respect to the outsert nut, providing a locking portion on the connection terminal, and providing the connection terminal on the insertion portion. A lock portion is provided in which the locking portion is engaged with the locking portion in the positioning state.

According to the first aspect of the present invention, by inserting the connection terminal connected to the wire terminal into the insertion portion of the insulator, the locking portion of the connection terminal is engaged with the lock portion of the insulator. In addition, the connection terminals can be reliably engaged with the insulator, so that workability and reliability can be improved.

According to a second aspect of the present invention, there is provided the connection terminal mounting structure according to the first aspect, wherein the locking portion or the locking portion is formed to be elastically deformable.

According to the second aspect of the present invention, in addition to the operation of the first aspect, the locking portion and the locking portion can be smoothly and appropriately engaged under the elastic action.

According to a third aspect of the present invention, there is provided the connection terminal mounting structure according to any one of the first and second aspects, wherein the insertion portion includes a guide groove provided with the connection terminal on a surface of the insulator. A stopper bridging the guide groove at a position separated from the outsert nut.

According to the third aspect of the invention, in addition to the function of any one of the first and second aspects of the invention, the stopper can prevent the engagement and disengagement of the locking portion and the locking portion.

According to a fourth aspect of the present invention, in the connection terminal mounting structure according to any one of the first to third aspects, the guide groove has a window for confirming the engagement at a position corresponding to the lock portion. It is characterized by having been formed.

According to the fourth aspect of the invention, in addition to the function of any one of the first to third aspects, even when another member (not shown) is screwed together on the engaged connection terminal with a screw, The confirmation window confirms whether the engagement state is normal, and the reliability can be further improved.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention. In these figures, reference numeral 1 denotes a groove-shaped connection terminal, a connection portion 1a to which an electric wire terminal 2 is connected, and a U-shaped connection portion ahead of the connection portion 1a. And a pair of left and right locking portions 1e formed outside at the tip of an elastically deformable bifurcated leg 1d.

Reference numeral 3 denotes an insulator, an outsert nut 3c having a screw hole 3b buried in its surface 3a, a plug portion 3g provided in the surface 3a, and a plug portion 3g in front of the outsert nut 3c. And a pair of left and right lock portions 3d formed at the same time.

In the case of this embodiment, the insertion portion 3g is formed by the notch 1 of the connection terminal 1 inserted in the direction of the surface 3a of the insulator 3.
b is positioned on the outsert nut 3c, and the guide groove 3g 'formed on the surface 3a of the insulator 3 and the guide groove 3g' at a position separated from the outsert nut 3c. Stopper 3e bridged to the edge
Window 3f for confirming engagement between the stopper 3e and the front end of the guide groove 3g ', and the stopper 3e and the guide groove 3g'.
And a gap 3h formed between the bottom surface and the bottom surface.

According to the structure of the above embodiment, as shown in FIG.
In order to attach to the outsert nut 3c, the locking portion 1e of the connection terminal 1 is inserted from the guide groove 3g 'of the insulator 3 into the confirmation window 3f through the gap 3h below the stopper 3e. While the connection terminal 1 is guided by the guide groove 3g ', the forked leg 1d is connected to each locking portion 1e and each locking portion 3d.
After being elastically deformed inward by contact with each other, each locking portion 1e gets over each locking portion 3d and
The locks 3d are engaged by the elastic return of d. Therefore, the connection terminal 1 can reliably engage with the insulator 3.

In this state, the stopper 3e restricts the upward movement of the connection terminal 1 so that the locking portion 1e and the locking portion 3
The engagement and disengagement with d can be prevented.

The connection terminal 1 may be fixed to the outsert nut 3c by fastening the screw 4 to the screw hole 3b of the outsert nut 3c from the notch 1b. In the case where another member (not shown) is fixed together with the screw 4, the confirmation window 3f makes it possible to easily confirm whether the engagement state is normal.

Although not shown, an elastically deformable locking portion is provided on the closed-end connection terminal, and the locking portion is engaged with a non-elastically deformable locking portion provided on the insulator. The same operation and effect as in the embodiment can be obtained.

Further, the present invention can be similarly applied when the lock portion is formed so as to be elastically deformable and the locking portion is formed so as not to be elastically deformable.

The present invention can be similarly applied to a connection terminal bent in an L-shape.

Further, a structure in which a screw is erected on the terminal fitting and the connection terminal is fixed to the terminal fitting with a nut attached to the screw can be similarly implemented.

[0029]

As described above, according to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the connection terminal is securely engaged with the insulator by engaging the locking portion of the connection terminal inserted into the insertion portion of the insulator with the lock portion of the insulator. , Workability and reliability can be improved.

According to the second aspect of the invention, in addition to the effect of the first aspect, the locking portion and the locking portion can be smoothly and easily engaged with each other by elastic deformation.

According to a third aspect of the present invention, in addition to the effects of any one of the first and second aspects, the engagement and disengagement of the locking portion and the locking portion can be appropriately prevented by the stopper.

According to a fourth aspect of the present invention, in addition to the effect of any one of the first to third aspects, even when another member (not shown) is screwed onto the engaged connection terminal together with a screw, the confirmation window is provided. Thus, it is possible to confirm whether the state of the engagement is normal, and to further improve the reliability.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before engagement showing an embodiment of the present invention.

FIG. 2 is an exemplary perspective view showing a state after engagement according to the embodiment;

FIG. 3 is a perspective view showing a state before engagement of a conventional connection terminal mounting structure.

FIG. 4 is a perspective view showing a state before engagement of a different conventional connection terminal mounting structure.

FIG. 5 is a perspective view showing a state before engagement of a further different conventional connection terminal mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection terminal 1e Locking part 2 Electric wire terminal 3 Insulator 3a Surface 3c Outsert nut 3d Lock part 3e Stopper 3f Confirmation window 3g Insertion part 3g 'Guide groove

Claims (4)

[Claims] 1. A connection terminal mounting structure in which a connection terminal connected to an electric wire terminal is fixed to an outsert nut embedded in an insulator surface with a fastener, and the connection terminal is connected to the insulator surface in a surface direction. An insertion portion for inserting and positioning the connection terminal with respect to the outsert nut is provided, a locking portion is provided on the connection terminal, and the locking portion is prevented from coming off in the insertion portion when the connection terminal is positioned. An attachment structure for a connection terminal, wherein a lock portion to be engaged is provided. 2. The connection terminal mounting structure according to claim 1, wherein the locking portion or the locking portion is formed so as to be elastically deformable. 3. The mounting structure for a connection terminal according to claim 1, wherein the insertion portion includes a guide groove provided with the connection terminal on a surface of the insulator, and a guide groove provided in the guide groove. A connection terminal mounting structure comprising a stopper bridged at a position off the outsert nut. 4. The connection terminal mounting structure according to claim 1, wherein the guide groove has a window for confirming the engagement at a position corresponding to the lock portion. Connection terminal mounting structure.