JPH0765877A - Post wiring connecting terminal, ts connecting jig and connecting method - Google Patents

Abstract

PURPOSE:To easily connect a wiring material with no stress applied to a post of small diameter arranged in high density. CONSTITUTION:A wiring material 30 is wound to a small diameter part 1a formed in the vicinity of a central part of a post wiring connection terminal 1, and next this terminal 1 is engaged with a post 50 vertically provided on a printed wiring board 40. Thereafter by pressing the terminal 1 by a connecting jig 2 while inserting the post 50 into a hole 2a of the connecting jig 2, the terminal 1 is plastic-deformed to press crimp the post 50 and the wiring material 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a post wiring connecting terminal, a connecting jig and a connecting method for connecting a wiring member to a post having a small diameter and a high density, which can easily connect a wiring member without applying stress.

[0002]

2. Description of the Related Art Conventionally, there are printed wiring boards in which a metal post is erected as a connecting portion to other electronic parts and the like, and this post and other electronic parts and the like are connected via a wiring material. Was. Conventionally, as a method of connecting such a post and a wiring material, for example, a wrapping tool is used.
As shown in FIG. 10, there is a lapping method in which the wiring material 30 is tightly wound around the post 50. Further, as shown in FIG. 10, a method of tangling the wiring material 30 to the post 50 and soldering with a soldering iron 60 is available. there were.

[0003]

However, with the recent miniaturization and high density of electronic components and printed wiring boards, the posts have become smaller in diameter and arranged at a higher density. With the connection method of, the following problems came to occur. First, in the conventional connection using the wrapping method, the wiring material must be tightly wound around the post in order to obtain the winding holding force of the wiring material. Occurs, and the contact reliability between the printed wiring board and the post deteriorates. Further, such a lapping method has a problem that it is difficult to manufacture a lapping tool (connecting jig) corresponding to a post having a reduced diameter.

Further, when it is necessary to connect a plug-in connector to the tip of the posts arranged at a high density, the wiring material must be connected to the root of the post. The method of bending and soldering has a problem that it is difficult to insert the soldering iron into the root portion of the post, so that the post and the wiring material cannot be connected.

The present invention has been made in view of the above problems, and a post wiring connecting terminal which can easily connect a wiring material to a post having a small diameter and high density and without applying stress. An object is to provide a connecting jig and a connecting method.

[0006]

In order to achieve the above object, a post wiring connection terminal of the present invention is a conductive terminal for connecting a post and a wiring material standing on a printed wiring board. The shape is a cylindrical shape with a small diameter near the center. Further, such a post wiring connection terminal connecting jig has a pressing member having a diameter substantially equal to or larger than the end diameter of the post wiring connecting terminal, and a hole for inserting the post in the center of the pressing member. Is preferably formed, and it is preferable that a housing portion having a diameter substantially the same as or larger than the end diameter of the post wiring connection terminal is formed at the tip of the pressing member. Further, such a method of connecting the post wiring connection terminal is such that a wiring material is wound around a small diameter portion of the post wiring connection terminal, the post wiring connection terminal wound with the wiring material is engaged with the post, and then pressure is applied from above. Is added, the post wiring connection terminal is plastically deformed, and the small-diameter portion of the post wiring connection terminal is pressure-bonded to the wiring member and the post to be connected.

[0007]

According to the post wiring connection terminal of the present invention having the above structure, since the shape thereof is a cylindrical shape with a small diameter in the vicinity of the central portion, pressure is applied from above to the terminal engaged with the post. Then, the small diameter portion is plastically deformed inward, and the post is crimped to the inner diameter of the small diameter portion. Also,
At this time, the wiring material wound around the outside of the small diameter portion is wrapped around the plastically deformed outer peripheral surface of the cylinder. According to the connection jig for the post wiring connection terminal and the connection method using this jig of the present invention, the post engaged with the terminal is pressed while inserting the hole formed in the center of the pressing portion. This plastically deforms the terminal without damaging the post.

[0008]

Embodiments of the post wiring connecting terminal, its connecting jig and connecting method according to the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a post wiring connection terminal according to this embodiment. FIG. 2 is a sectional view showing a state in which the terminal is plastically deformed.

In FIG. 1, reference numeral 1 denotes a post wiring connection terminal, which is made of a metal having good conductivity. The terminal 1 has a cylindrical shape in which a small diameter portion 1a is formed by narrowing the vicinity of the central portion to a small diameter.
The wiring material 3 is wound around a. In this way, the post wiring connection terminal having the structure in which the small diameter portion 1a is provided in the vicinity of the central portion plastically deforms and the inner diameter of the small diameter portion 1a projects inward when pressure is applied from above, as shown in FIG. At the same time, the upper and lower large-diameter portions overlap each other to enclose the wiring member 30.

Next, an embodiment of a connecting jig for the post wiring connecting terminal will be described with reference to FIG. The connecting jig 2 has a columnar shape with a diameter substantially equal to or larger than the diameter of the end portion of the terminal 1, and has a post 50, which will be described later, at one end thereof.
A hole 2a having a larger diameter is formed along the central axis.

Although the connecting jig 2 of this embodiment has a columnar shape, it may have a rectangular columnar shape such as a quadrangle, a hexagon or an octagon. Alternatively, as shown in FIG. 4, only the portion that presses the terminal 1 may have a diameter substantially equal to or larger than the end diameter of the terminal 1, instead of forming the entire jig into a columnar shape having the same diameter.

As shown in FIG. 5, a storage portion 2b having a diameter slightly larger than the end diameter of the terminal 1 may be formed at the tip of the connecting jig 2. With such a configuration, the positioning of the connecting jig 2 can be easily performed, and when the connecting jig 2 is pushed down, the connecting jig 2 moves to the left and right to prevent the accident of bending the post 50. You can Furthermore, the storage part 2
By adjusting the height of the wall portion of b, the amount of plastic deformation of the terminal 1 can always be made constant.

Next, a method of connecting the post wiring connection terminals will be described with reference to FIGS. First, the wiring material 30 is wound around the small diameter portion 1a of the post wiring connection terminal 1. Then, the terminal 1 is engaged with the post 50 provided upright on the printed wiring board 40 (FIG. 6). Next, post 5
The connection jig 2 is placed on the terminal 1 while inserting 0 into the hole 2a (FIG. 7). Then, a pressing force is applied to the connecting jig 2 to plastically deform the terminal 1. Then, the post 50 is crimped to the inner diameter of the small diameter portion 1a, and at the same time, the wiring member 30 wrapped around the outside of the small diameter portion 1a is wrapped by the small diameter portion 1a and the upper and lower large diameter portions (FIG. 8).

According to the method of connecting the post wiring connection terminals according to the present embodiment described above, the winding work of the wiring material 30, which has been extremely difficult since it was conventionally performed on the printed wiring board 40, can be easily performed at hand. In addition, the wiring member 30 and the post 50 are securely crimped by the terminal 1.

According to the post wiring connecting terminal, the connecting jig and the connecting method thereof of this embodiment, the wiring member 30 can be easily connected to the posts 50 having a small diameter and high density without any stress. can do.

[0016]

As described above, according to the post wiring connecting terminal, the connecting jig and the connecting method of the present invention, it is easy to apply stress to the root portion of the post having a small diameter and high density. Wiring material can be connected to.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a post wiring connection terminal according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which the terminal of FIG. 1 is plastically deformed.

FIG. 3 is a partial sectional view showing an embodiment of a connection jig for a post wiring connection terminal of the present invention.

[Fig. 4]

FIG. 5 is a partial cross-sectional view showing another embodiment of the present connection jig.

FIG. 6,

[Fig. 7]

FIG. 8 is a cross-sectional view showing a series of operations of the method for connecting the post wiring connection terminal of the present invention.

FIG. 9 is a partial cross-sectional view showing a post wiring connection method according to a first conventional example.

FIG. 10 is a partial cross-sectional view showing a post wiring connection method according to a second conventional example.

[Explanation of symbols]

 1 Post Wiring Connection Terminal 1a Small Diameter Section 2 Connection Jig 2a Hole 2b Storage Section 30 Wiring Material 40 Printed Wiring Board 50 Post

Claims (5)

[Claims] 1. A conductive terminal for connecting a wiring material and a post erected on a printed wiring board, the shape of which is:
Post wiring connection terminal characterized by having a cylindrical shape with a small diameter in the vicinity of the central portion. 2. The post wiring connection terminal according to claim 1, wherein a wiring material is wound around the small diameter portion. 3. A connection jig for crimping the post wiring connection terminal according to claim 1 or 2 to a post, comprising a pressing member having a diameter substantially equal to or larger than an end diameter of the post wiring connection terminal. Then, a connecting jig for a post wiring connecting terminal, wherein a hole into which the post is inserted is formed in the center of the pressing member. 4. The connection jig for a post wiring connection terminal according to claim 3, wherein a storage portion having a diameter substantially equal to or larger than an end diameter of the post wiring connection terminal is formed at the tip of the pressing member. 5. A method of connecting a post and a wiring material using the post wiring connection terminal according to claim 1, wherein a wiring material is wound around a small diameter portion of the post wiring connection terminal, and the post wiring is wound with the wiring material. By engaging the connection terminal with the post and then applying pressure from above, the post wiring connection terminal is plastically deformed, and the small diameter portion of the post wiring connection terminal is crimped to the wiring material and the post. How to connect post wiring connection terminals.