JPH0454700Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a terminal holder that streamlines wire connection work, and a terminal board in which such terminal holders are arranged in multiple stages and integrated.

(Prior Art) For example, when connecting a control main cable stretched between utility poles or a branch cable branched from the main cable to a terminal board fixed to the utility pole, such a terminal board is conventionally The one shown in the figure was used.

The terminal board a includes a terminal holding board b made of an insulating material.
On the front and back sides, four rows of terminals in which the terminals c are lined up in the vertical direction are provided at intervals in the width direction of the terminal holding plate b, and for example, the two rows on the left side are used for connecting the main cable d, and the two rows on the right side are used for connecting the trunk cable d. This was for connecting the branch cable e. And each of these terminals c has
Notches f, f for winding wires on both the inside and outside parts
was set up.

Each terminal c of the terminal board a having such a configuration...
To solder each wire g of the cable to ..., as shown in Fig. 8, wrap the exposed conductor part of the wire g about 2 to 3 times around the notch f of the terminal c, and then Solder was placed on h and the winding portion h and terminal c were soldered. Also, as mentioned above,
If the terminals in the two rows on the left side are used to connect the main cable d, and the terminals in the two rows on the right side are used to connect the branch cable e, then for the branching, a terminal for the main cable and a terminal for the branch cable are used. It is necessary to electrically connect the two, and for such a connection, for example, the inner terminals are connected to each other and the outer terminals are connected to each other by soldering with conductive connecting wires in the same manner as described above. .

(Problems to be Solved by the Invention) However, the connection of each cable using the conventional terminal board described above has the following various problems. In other words, the winding and soldering work of the exposed conductor parts of each wire of the main cable and each wire of the branch cable, as well as the exposed conductor part of the crossover wire, is performed on a terminal in which a large number of terminals are arranged side by side at small intervals. It was necessary to do this one by one in the narrow space between the terminals on the board. Therefore, not only does the work require considerable skill, but
There was a problem that the workability was extremely poor, such as that it took a considerable amount of time to complete the work. In particular, the above-mentioned problem becomes even more serious when the work is performed in an unstable position at a height above a utility pole.

Furthermore, when winding and soldering the exposed conductor part with the terminal in this way, in the future,
When it becomes necessary to change the terminal to be connected to a required electric wire, such work cannot be easily performed.

The object of the present invention is to provide a terminal holder that can solve these problems and a terminal board that is formed by arranging the terminal holders in multiple stages and integrating them.

(Means for Solving the Problems) The terminal holder 1 according to the present invention has (A) solder accommodating portions 5, 5 at both end portions as blind holes that are open at the end faces and into which exposed conductor portions of electric wires can be inserted. a terminal member 1 for connecting electric wires made of a conductive material and having flux-cored solder 9 accommodated in the solder accommodating portion 5;
or (B) have solder accommodating parts 5, 5 at both ends as blind holes which are open at the end face and into which the exposed conductor part of the electric wire can be inserted, and a transparent hole for degassing is provided near the bottom of the solder accommodating part. A terminal member 1 for connecting electric wires made of a conductive material and having a hole 10 and a flux-cored solder 9 accommodated in the solder accommodating portion 5 is used, and two of the terminal members 1 are used. An insulating terminal holding base 1 is made up of a pair of split pieces 16a and 16b that form a cavity 35 by combining two sets of terminal member sets.
3, the split pieces 16a, 16 in the combined state
b, and in the cavity 35, one terminal member in one terminal member set and one terminal member in another terminal member set, and the other terminal member in one terminal member set. This is characterized in that the other terminal members in the other terminal member sets are connected to each other by conductive crossover wires 32.

Further, the terminal board 39 according to the present invention is characterized in that the terminal holders 15 are stacked in a required number of stages and are integrated as a whole.

(Function) In order to connect the exposed conductor portion 3 of the electric wire to the end portion (that is, the terminal) of the terminal member 1, the flux-cored solder 9 contained in the solder storage portion 5 must be used.
is melted by heating the outer surface of the solder accommodating part 5 with a heating tool such as a torch, and then the exposed conductor part 3 is gently inserted into the solder accommodating part 5 and waiting for the solder to solidify. . If it becomes necessary to change the connection position of the electric wire, heat the connection part with a torch or the like to melt the solder, then gently pull out the exposed conductor part 3 from the solder storage part 5, and then reassemble it as required in the same manner as above. Just change the connection to the terminal.

In addition, the through hole 10 for degassing provided in the solder accommodating part 5 is used when the solder accommodating part 5 is heated with a torch or the like after a required length of solder, for example, is inserted into the solder accommodating part 5. It functions to discharge the gas (although the amount is very small) generated at the bottom portion of the solder storage portion 5.

Further, the crossover wire 32 in the terminal holding stand 13 electrically connects the main line terminal member and the branch terminal member.

(Example) Examples of the present invention will be described below based on the drawings.

1 to 3 show a terminal member 1 used in the present invention. The terminal member 1 is formed in the shape of a straight rod with a circular cross section, and has solder accommodating portions 5, 5 at both end portions, which are open at the end face and serve as blind holes into which the exposed conductor portion 3 of the electric wire 2 can be inserted. Locking flanges 7, 7 are circumferentially provided on both sides of the solder storage portions 5, 5 and at the inner portions of the bottom portions 6, 6 of both solder accommodating portions 5, 5. Flux-cored solder 9 is accommodated in both solder accommodating portions 5, 5. The amount of solder to be accommodated is such that when the exposed conductor section 3 is accommodated in the solder accommodating section 5, melted solder does not flow out from the solder accommodating section 5. good. Further, a through hole 10 for degassing is provided in a portion near the bottom of the solder accommodating portion 5, and an exposed conductor portion of a connecting wire 32, which will be described later, is provided in the center portion between the two locking collar portions 7, 7. A through hole 12 for inserting the holder 33 is provided.

To give an example of the dimensions of the main parts of the terminal member 1, the inner diameter of the solder accommodating part 5 is about 2.5 to 3.5 mm, the depth is about 10 mm, and the diameter of the gas vent hole is about 0.7 mm. be done.

For example, two sets of terminal members each consisting of two terminal members 1 having the above configuration are held on an insulating terminal holder 13 to form a terminal holder 15 as shown in FIG. do. The terminal holding stand 13
is constructed by combining a pair of synthetic resin split pieces 16a and 16b of the same shape in the shape of a rectangular parallelepiped. As shown in FIGS. 5 and 6, the split piece has a stepped portion extending in the vertical direction, which is formed by connecting a large-diameter upper hole 17 with a small-diameter lower hole 20 via a stepped portion 19, at both ends thereof. An annular protrusion 22 (having a through hole concentric with and having the same diameter as the lower hole 20) that can fit into the upper hole 17 is provided at both ends of the lower surface thereof.
22 is provided protrudingly. Continuous rectangular grooves 23 and 25 that open upward and downward are provided on the front and back surfaces of the stepped holes 21 and 21 in an opposing state, and the upper groove 23 or the lower groove Opposed groove walls 26,2 in 25
On the upper or lower surface portions of 7, 26, 27, semicircular arc-shaped notches 29, 29 for fitting the terminal member central portion are provided for fixing the terminal member 1 so as to extend in the width direction of the split piece 16. are arranged in four vertically symmetrical rows at intervals. The opposing outer surfaces 30, 30 of the split piece 16 are formed by fitting the inner surfaces 30, 30 of the both flanges 7, 7 of the terminal member 1 into the notches 29, 29 by fitting both sides of the central portion of the terminal member 1 into the notches 29, 29. ,3
It can come into contact with 1. To form the terminal holder 15, the terminal member 1 is fitted into each of the notches 29, 29, . . . provided on the upper surface of one of the split pieces 16a. Terminal member 1 at the center of terminal members 1a and 1b and inside each other
The central portions of wires c and 1d are connected in advance by conductive crossover wires 32 and 32. Note that when connecting the terminal members 1 and 1 with each other by the crossover wire 32, the exposed conductor portion of the crossover wire 32 is connected to the terminal member 1.
After the exposed conductor portion is inserted into the through hole 12 provided in the center of the terminal member 1, the exposed conductor portion is wound around the terminal member 1, and the wrapped portion 33 is soldered. In this state, the other split piece 16b is connected to the annular projections 22, 22 at both ends thereof and the upper holes 17, 17 of the split piece 16a.
When both the split pieces 16a, 16b are integrated by fitting them together, each terminal member 1a, 1b, 1c, 1d becomes
It is held by the terminal holding base 13 as if being sandwiched between the split pieces 16a, 16b while being inserted through the circular hole formed by the opposing notches 29, 29,
Moreover, the engagement between the flange portion 7 and the split piece side surface 30 ensures that the position is fixed. The crossover wires 32, 32 are housed in a cavity 35 formed by combining the two split pieces 16a, 16b.

The terminal holder 15 having the above configuration,
As shown in FIG. 7, by fitting the annular protrusions 22, 22 into the upper holes 17, 17, the required number of stages are stacked, and the entire structure is assembled using bolts 36 inserted through the stepped holes 21, 21. By screwing with nuts 37, a terminal board 39 is constructed in which terminals 38 are arranged in parallel on both sides of the plate-like body.

The procedure for connecting, for example, the exposed conductor portions of the electric wires constituting the cable to the required terminals of the terminal board 39 having such a configuration is the same as that described in the above-mentioned "Operations" section. In addition, FIG. 7 shows that the electric wires 2 constituting the trunk cable 40 are connected to the terminal board 39.
and shows a state in which the electric wires 2 constituting the branch cable 41 are connected.

(Effects of the Invention) Since the present invention is constructed as described above, it produces the following excellent effects. That is, when using the terminal holder according to the present invention,
By simply heating the solder accommodating part of the terminal member from the outside with a heating tool such as a torch to melt the stored solder, and then inserting the exposed conductor part of the electric wire into the solder accommodating part, the solder can solidify and melt the solder. The exposed conductor portion will automatically be reliably soldered to the terminal (the end portion of the terminal member). On the other hand, by heating the wire connection part and melting the solder, the exposed conductor part can be easily removed, so even if it becomes necessary to change the connection position of the wire in the future, the repositioning work can be easily done. It is extremely easy to do.

Then, the terminal member for connecting the electric wire of the trunk cable and the terminal member for connecting the electric wire of the branch cable are connected by a conductive crossover wire that fits in the cavity formed by combining the split pieces. Therefore, (by incorporating the crossover wire into the terminal holder), there is no need to connect the terminal members to each other using crossover wires on the surface of the terminal board as in the past, which improves work efficiency and reduces the work involved in connecting wires. To further facilitate the work of relocating wire connections.

The effects described above are particularly exhibited when each electric wire of a cable is connected to each terminal (end portion of a terminal member) in a terminal board in which terminal members are arranged side by side at small intervals.

In other words, when connecting an electric wire to a terminal by winding the exposed conductor part of the electric wire around the terminal and soldering it as in the past, since there are a large number of electric wires to be connected, the winding of the exposed conductor part is difficult. When carrying out the soldering work and the subsequent soldering work, the wires running over the surface of the terminal board got in the way, which not only made the work extremely difficult, but also made it difficult to securely wrap exposed conductor parts. This required a lot of skill.

However, in the terminal board according to the present invention, since the wires can be connected only by inserting the exposed conductor part into the solder housing part,
There is no problem of wires running over the terminal board becoming an obstacle when soldering, and there is no need for the troublesome work of winding exposed conductor parts or applying thread solder to the winding parts. There is no need to solder conductive crossover wires.

For this reason, even if a large number of terminals are arranged side by side at small intervals on the terminal board surface, the wiring on the terminal board surface is simpler than in the conventional case. By comparing the wiring state shown in the figure with the wiring state shown in FIG. 8 in a conventional terminal board, wire connection work and wire connection position changing work can be performed very efficiently. Further, unlike the conventional method, no skill is required for winding the electric wires, so even a non-specialist can easily perform the wire connection work reliably. In addition, even if work is forced to be done in an unstable position at heights, such as when the terminal board is installed high up on a telephone pole, the work can be completed safely and in a short time. It will be done.

By providing a through-hole for gas venting in a portion near the bottom of the solder accommodating part, trace amounts of gas generated in the solder accommodating part can be discharged from the through-hole, thereby improving the soldering condition in the solder accommodating part. It can be made into something.

Since the terminal board of the present invention has a terminal holder that holds the terminal member as a basic unit, a desired terminal board can be easily manufactured by stacking the terminal holders in the required number of stages and integrating the whole. be able to.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing a terminal member according to the present invention, FIG. 2 is a cross-sectional view showing a solder storage part, and FIG.
The figure is a cross-sectional view showing flux-cored solder accommodated in the solder accommodating part, FIG. 4 is a perspective view showing the terminal holder according to the present invention, FIG. 5 is an exploded perspective view of the terminal holder, and FIG. 6 7 is a cross-sectional view showing the exposed conductor part of the electric wire soldered to the terminal, FIG. 7 is a perspective view showing the terminal board according to the present invention together with the connection state of the electric wire to the terminal, and FIG. 8 is a conventional terminal board. FIG. 2 is a perspective view showing the state of connection of electric wires to the terminals thereof. DESCRIPTION OF SYMBOLS 1...Terminal member, 2...Electric wire, 3...Exposed conductor part of electric wire, 5...Solder storage part, 9...Solder, 10
...Gas venting hole, 13...Insulating terminal holder, 15...Terminal holder, 16a, 16b...Split pieces, 32...Connector wire, 35...Cavity part, 39...
terminal board.

Claims (1)

[Claims for Utility Model Registration] (1) The solder accommodating portions 5 have solder accommodating portions 5, 5 at both end portions as blind holes that are open at the end faces and into which exposed conductor portions of electric wires can be inserted; A terminal member 1 for connecting electric wires made of a conductive material and containing flux-cored solder 9 is used, and two sets of terminal members each including two terminal members 1 are as follows: The insulating terminal holder 13 is made up of a pair of split pieces 16a and 16b that form a cavity 35 when combined, and the split piece 16 is attached to the insulating terminal holding base 13 in the combined state.
Hold it between a and 16b,
In addition, in the cavity 35, one terminal member in one terminal member set and one terminal member in another terminal member set are connected to each other, and the other terminal member in one terminal member set and the other terminal member in another terminal member set are connected to each other. A terminal holder characterized in that terminal members are connected to each other by conductive crossover wires 32. (2) It has solder accommodating parts 5, 5 at both ends as blind holes which are open at the end face and into which the exposed conductor part of the electric wire can be inserted, and a through hole for degassing is provided near the bottom of the solder accommodating part. A terminal member 1 for connecting electric wires made of a conductive material is used, in which a flux-cored solder 9 is accommodated in the solder accommodating portion 5, and two of the terminal members 1 are provided. Two sets of terminal member sets are placed on an insulating terminal holding base 13 consisting of a pair of split pieces 16a and 16b that form a cavity 35 by combining the split pieces 16 in the combined state.
Hold it between a and 16b,
In addition, in the cavity 35, one terminal member in one terminal member set and one terminal member in another terminal member set are connected to each other, and the other terminal member in one terminal member set and the other terminal member in another terminal member set are connected to each other. A terminal holder characterized in that terminal members are connected to each other by conductive crossover wires 32. (3) A terminal board characterized in that the terminal holders according to claim (1) or (2) are stacked in a required number of stages and are integrated as a whole.