JPH031888Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to electric wire connectors, and more specifically, by simply inserting the pre-stripped core wire of an electric wire such as a ribbon cable, the wire connector automatically connects the wire with spring pressure. This invention relates to an improvement in a wire connector that is connected to a wire connector and that allows wires to be pulled out simply by pushing down a cover.

[Conventional technology]

As is well known, a housing is formed with a plurality of terminal mounting spaces for holding the core wires of an electric wire, and a plurality of terminals are inserted into each of the terminal mounting spaces to elastically hold each of the plurality of core wires of the electric wire. A plurality of core wire insertion holes are formed for passing the terminals and the above-mentioned core wires, and the terminals are fitted into the above-mentioned housing so as to be movable up and down, and when the housing is moved downward, the tip holding portions of each of the plurality of terminals are held in place. Various electric wire connectors have been put into practical use that include a cover having a terminal pressing body that deforms in a direction away from the core wires against elasticity to release a plurality of core wires.

One of them is shown in Figs. 14 and 15.
This consists of multiple terminal mounting spaces 1'a, 1'b, 1'c.
The core wires 4'a, 4' of the plurality of electric wires 3' are inserted into the housing 2' in which ... are formed, and the terminal mounting spaces 1'a, 1'b, 1'c... b,
4'c... A plurality of terminals 5'a, 5'b, 5'c... for elastically holding each terminal, and a plurality of core wire insertion holes 6' for passing the core wires are formed, The plurality of terminals 5'a, 5'b,
It consists of a cover 8' having a terminal push-down body 7' that deforms the terminal 5'c in a direction away from the core wires against its elasticity to release the plurality of core wires. In the case of the prior art represented by this example, the plurality of terminals 5'a,
5'b, 5'c... are the core wires 4'a, which are lined up horizontally.
4'b, 4'c, . . . are all arranged adjacent to each other on one side 9' in a horizontal line. As an example, the practical idea is shown in Utility Model Application Publication No. 59-51595.

[The problem that the idea aims to solve]

According to the above-mentioned conventional technology, the advantage is that by simply inserting the pre-stripped core portion of an electric wire such as a ribbon cable, the connection is automatically established by spring pressure, and that the electric wire can be pulled out simply by pressing down on the cover. Therefore, it is used as a connector for various electric and electronic parts, but there are problems in using it as a connector for electric wires where the pitch between the core wires is extremely small. That is, recently, electric wires with extremely small pitches such as 1.5 mm between multiple core wires have come to be used, and these have come to be connected using wire connectors.
In the case of the conventional electric wire connector, as described above, a plurality of terminals 5'a, 5'b, 5'c... All terminals 5'a, 5'b, 5'c are arranged side by side on one side 9' in a horizontal line, so the pitch P between them should be as small as 1.5 mm. Then,
The distance between each terminal cannot be made too small due to the need to maintain electrical insulation, and therefore one
The width W' of the three terminals 5'a, 5'b, and 5'c had to be made extremely thin, resulting in a problem that the strength of each terminal was reduced.

Therefore, the purpose of the present invention is to make the pitch between the terminals extremely small so that core wires with an extremely small pitch such as 1.5 mm pitch can be connected while satisfying the strength of each terminal. To provide a wire connector which can be easily attached and detached.

[Means for solving the problem] In order to achieve the above object, the present invention has the following technical means. That is, to explain this using the reference numerals in the attached drawings that correspond to the embodiments, the present invention includes a housing 2 in which a plurality of terminal mounting spaces 7a to 7d are formed, and a housing 2 that is inserted into each of the terminal mounting spaces 7a to 7d. A plurality of terminals 8a to 8d elastically clamp each of the plurality of core wires B1 to B4 of the electric wire A, and a plurality of core wire insertion holes 3 for passing the core wires B1 to B4.
a to 3d are formed, and are fitted into the housing 2 so as to be able to move up and down, and when this is moved down,
Tip clamping portion 1 of each of the plurality of terminals 8a to 8d
In a wire connector comprising a cover 1 having a terminal pressing body 19 that deforms a terminal pusher 19 in a direction away from a plurality of core wires B1 to B4 against the elasticity of the wire connector 5 to release a plurality of core wires B1 to B4; The plurality of terminals 8a to 8d that sandwich the core wires B1 to B4 are inserted into the plurality of core wire insertion holes 3a to 3 formed in a horizontal line in the center of the cover 1.
The terminals are arranged in the plurality of terminal mounting spaces 7a to 7d of the housing 2 in alternating order on one side 12 and the other side 13 so that the horizontal line L of d is placed inside. At the same time, each clamping wall 14 of the terminal mounting spaces 7a to 7d is arranged on one side 12 so as to correspond to the tip clamping part 15 of each of the plurality of terminals 8a to 8d arranged in the alternating order. This electric wire connector is characterized in that terminal mounting spaces 7a to 7d are formed in terminal mounting spaces 7a to 7d, which are alternately divided into terminal mounting spaces 7a to 7d.

[Effect]

With such a configuration, each of the terminals 8a to 8d of the electric wire connector of the present invention is inserted into a plurality of core wire insertion holes 3a to 3 formed in a horizontal line in the center of the cover 1.
They are arranged alternately and sequentially on one side 12 and the other side 13 so that the horizontal line L of d is in the middle, and each clamping wall 14 is also arranged so that the horizontal line L of each terminal 8a to 8d is inside. Since they are distributed alternately and sequentially to one side 12 and the other side 13 so as to correspond to the holding part 15 at the tip, 12 areas on one side or 1 area on the other side
In the three areas, the adjacent terminal to one terminal is the terminal that is one position ahead of the other in order, so electrical insulation between each terminal is maintained, and the pitch P between the terminals can be maintained. For example, even if the pitch is as small as 1.5 mm, there is no need to reduce the width W of each terminal accordingly.In other words, it is not necessary to make the width W of each terminal narrow enough to ensure the necessary strength. Since there are spaces that do not touch each other,
It can provide sufficient mechanical strength. Therefore, it is suitable as a wire connector for connecting wires with a very small pitch between core wires. To insert a ribbon cable with a pitch P of 1.5 mm between core wires into this wire connector, first insert the cover 1.
Push down to open each terminal 8a to 8d, and insert core wires B1 to B1 through the plurality of core wire insertion holes 3a to 3d.
B4, and then release the push down of the cover 1, each core wire B1 to B4 will be attached to the tip clamping part 15 of each terminal.
and a terminal holding wall 14 that partitions the terminal mounting spaces 7a to 7d. To remove the electric wire A, the above procedure can be performed in reverse, and the electric wire can be easily attached and detached.

〔Example〕

Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the electric wires connected by this electric wire connector will be explained according to FIGS. 11 and 12. This electric wire A is called a ribbon cable, and is made of core wires B1, B2, which have been stripped to a predetermined length in advance. B
3 and B4 are arranged parallel to each other with an extremely small pitch P of, for example, 1.5 mm.

Next, a wire connector for connecting such pitched wires will be explained.

In the figure, 1 indicates a cover, and 2 indicates a housing.

The cover 1 shown in FIGS. 1, 2, 3, and 6 shows the cover and housing assembled together.
7, 8, and 9, the cover 1 has a plurality of core wire insertion holes 3a, 3 in the center.
b, 3c, and 3d are formed horizontally in a straight line, and each of the side walls 4 and 5 on both sides has a vertical shape for fitting the cover 1 into the housing 2 so as to be vertically movable. A lock groove portion 6 is formed.

On the other hand, the housing 2 is shown in FIGS. 1, 2, 3, 6, and 7 showing the cover and housing assembled, or 4 showing only the housing.
, 5 and 10, terminal mounting spaces 7a, 7b, 7c for mounting a plurality of terminals for elastically holding the core wires of a plurality of electric wires,
7d are formed, and a terminal 8 is connected to each of these.
a, 8b, 8c, and 8d are arranged. In addition, a lock claw portion 11 that fits into the lock groove portion 6 of the cover 1 is formed at the top of each of the side walls 9 and 10 on both sides. In this case, the terminal mounting space 7
Terminals 8a arranged in a, 7b, 7c, 7d,
Of course, the pitch of 8b, 8c, and 8d is the same as the pitch P between the core wires above, but in order to make it possible to arrange these terminals at this extremely small pitch P, the following It is intended to do so. That is, as described above, the core wire insertion holes 3a to 3 of the cover 1
3d is formed in a horizontal straight line. If this horizontal straight line is formed as an imaginary horizontal straight line L in FIG. 1, when this cover 1 is attached to the housing 2, this virtual With line L inside, these terminals 8a to 8d are 12 on one side and 1 on the other side.
3 are arranged in such a way that they are distributed alternately and sequentially. In the example shown, there are four terminals, so the terminal 8a is on one side 12, the next terminal 8b is on the other side 13, the next terminal 8c is on one side 12, and the last terminal 8d is on the other side. 13, etc., and when focusing on one terminal, for example 8a, the adjacent terminals in the area of 12 on one side are terminals located one step apart. It is 8c.

Therefore, the terminal mounting spaces 7a to 7d formed in the housing 2 are also formed so as to be alternately divided into one side 12 and the other side 13 with the imaginary horizontal straight line L therein. In the example shown in the figure, 7a is placed on one side 12.
There is a terminal mounting space 7b on the other side 13, and then the next terminal mounting space 7c on one side 12.
However, finally, a terminal mounting space 7d is formed on the other side 13.

In this case, each of the terminal mounting spaces 7a to 7d is alternately divided into one side and the other side with the imaginary line L inside, but the clamping wall 14 that partitions the terminal mounting space has a core wire insertion hole in the cover 1. 3a-3
Each core wire B1, B2, of the electric wire inserted from each of d.
In order to hold B3 and B4 together with the resilient terminal holding part 15 of each terminal, the circumference of each core wire inserted through the core wire insertion hole and positioned vertically inside the housing is It is formed so that its wall surface is in contact with surface C. Furthermore, the holding walls 14 are alternately distributed on one side 12 and the other side 13 so as to correspond to the terminal holding portions 15 of the respective terminals. As is clear from these, the distal end clamping part 15 is located on one side with the curved part 16 inside, and the proximal end part 17 that extends vertically downward on the other side.
Each of the terminals 8a to 8d formed with the core wire B1
- When B4 is not inserted, its distal end clamping portion 15 contacts the clamping wall 14 due to its elasticity, and its elasticity causes its base end portion 17 to contact the terminal mounting spaces 7a to 7d.
They are arranged in contact with the other wall 18 of each.

Further, on the tip holding portion 15 of each terminal 8a to 8d on the lower surface of the cover 1, the core wires B1 to B4 of the electric wire A are placed.
A pressing body 19 is formed for connecting and disconnecting, but this pressing body 19 is also formed by being distributed alternately to one side 12 and the other side 13 with the virtual line L in the middle. In this example, the push-down body 19 on one core line B2 is illustrated in FIG. 6 or FIG. 7. As is clear from FIG. 6 or FIG. 7, this push-down body 19 faces onto the tip holding portion 15, but is curved to prevent the lower surface of the cover from hitting the curved portion 6 of the terminal when the cover 1 is pressed down. The lower surface portion 20 of the cover on the portion 16 is largely cut upward.

Further, a window 21 is formed on the side surface of the housing 2, more specifically at the lower part of the side surface corresponding to each of the terminal mounting spaces 7a to 7d, for communicating each of the spaces 7a to 7d to the outside.

In this way, since the terminals 8a to 8d and the holding wall 14 are formed by alternately and sequentially distributing them to one side 12 and the other side 13 with the imaginary line L in between, it is possible to connect the core wires B1 to B4 of the extremely small pitch P. In addition, if the pitch P between the terminals is also made extremely small (for example, 1.5 mm),
The width W of each of the terminals 8a to 8d does not have to be made narrow accordingly, and can be set to a width that satisfies the strength and can maintain sufficient electrical insulation between the terminals. This is because one terminal and the adjacent terminal in one region are one terminal after another, and there is sufficient space between them to maintain electrical insulation. In other words, it is possible to provide a wire connector that can connect wires with an extremely small pitch between core wires while providing sufficient electrical connection and necessary strength to the terminals.

As an example, the pitch P between core wires and between terminals
Even if the width is as small as 1.5 mm, the width of the tip clamping portion 15 of the terminals 8a to 8d can be made to be about 0.8 mm.
It is easy to process and has sufficient mechanical strength. However, according to the conventional method, in order to ensure sufficient electrical insulation between the terminals, the width of the terminals must be made smaller, which is difficult to manufacture and difficult to provide mechanical strength. It is something.

In order to connect the electric wire A using this electric wire connector, first press the cover 1 and press the tip holding part 15 of each terminal 7a to 7d with the pusher 19, and then, in that state, connect the core wire of the electric wire A. It is sufficient to insert the core wires B1 to B4 through the core wire insertion holes 3a to 3d, release the pressure on the cover 1 after insertion, and hold the core wires B1 to B4 vertically between the tip clamping part 15 and the clamping wall 14. To remove the wire, simply do the opposite, so the wire can be easily attached and detached.

Also, in order to attach this wire connector to the board 22,
The proximal end portion 17 of the terminal may be kink-processed as shown in FIG. 3, and the other terminal may be installed by protruding from the window 21 of the housing to the side as shown in FIG. 13.

The example shown in FIG. 13 enables so-called SMT (Surface Mount Technology) implementation. That is, the housing window 21
Adhesive is applied to the proximal end 17 of the terminal extending out to the side, and this is positioned at the desired part on the printed circuit board.Then, the whole is heated in a tank to connect a large number of wire connectors, etc. It can be connected to the board at any time. Therefore, in the case of the example shown in Fig. 13, the strength of each terminal is ensured sufficiently, core wires with a very small pitch can be connected, and it can be used as a wire connector for SMT, and the connector itself can be used as a wire connector for SMT. Can be closely mounted on printed circuit boards.

[Effect of idea]

As detailed above, according to this invention, each terminal for holding the core wire of the electric wire and each holding wall corresponding to the tip holding part of each terminal are arranged alternately on one side and the other side with the imaginary line in the middle. This makes it possible to maintain electrical insulation between each terminal, and to ensure sufficient strength for each terminal, the pitch between the terminals is divided so that core wires with an extremely small pitch, such as 1.5 mm pitch, can be connected. It is possible to provide an electric wire connector which can be made into an extremely small pitch and which also allows the electric wires to be easily attached and detached.

[Brief explanation of the drawing]

The accompanying drawings show embodiments of the present invention, and are shown in Figures 1 to 3.
The figures show the parts where the cover and the housing are assembled. Figure 1 is a plan view, Figure 2 is a front view, Figure 3 is a side view, and Figure 4 is taken along line A-A' in Figure 2. FIG. 5 is a plan view of the housing showing the location where the core wire of the electric wire is inserted, FIG. 6 is a cross-sectional view taken along line B-B' in FIG. 1, and FIG. Fig. 6 is a cross-sectional view showing where the core wire of the electric wire is inserted in the same cross section as Fig. 6, Fig. 8 is a bottom view of the cover, and Fig. 9 is a cross-sectional view of the cover along line C-C' in Fig. 8. ,
FIG. 10 is a cross-sectional view of the housing along the line D-D' in FIG. 4, FIG. 11 is a plan view of the electric wire, and FIG. 12 is a cross-sectional view of the electric wire along the line E-E' in FIG. ,
Furthermore, FIG. 13 is a side view showing another example, FIG. 14 is a cross-sectional view of the prior art, and FIG. 15 is a plan view of the prior art.
4 is the core wire, C is the circumferential surface of the core wire, P is the pitch between the core wires of the electric wire and the pitch between the terminals, 1 is the cover, 2 is the housing, 3a, 3b, 3c, 3d are the core wire insertion holes, 4.5 is the cover , 6 is the lock groove of the cover, 7a, 7b, 7c, and 7d are terminal mounting spaces,
8a, 8b, 8c, 8d are terminals, 9, 10 are side walls of the housing, 11 is a lock claw portion, L is an imaginary horizontal line forming the core wire insertion hole,
12 is one side of the housing, 13 is the other side of the housing, 14 is a clamping wall, 15 is a tip clamping part, 16 is a curved part, 17 is a base end, 18 is a wall, 19 is a pusher,
20 is the lower surface of the cover, 21 is the window, W is the width of each terminal, and 22 is the substrate.

Claims (1)

[Claims for Utility Model Registration] A housing 2 in which a plurality of terminal mounting spaces 7a to 7d are formed, and a plurality of core wires B1 of an electric wire A that are inserted into each of the terminal mounting spaces 7a to 7d.
~A plurality of terminals 8a elastically clamping each B4~
8d, and a plurality of core wire insertion holes 3a to 3d for passing the core wires B1 to B4, are fitted into the housing 2 so as to be movable up and down, and when the housing 2 is moved downward, the plurality of terminals are inserted. The tip holding portions 15 of each of 8a to 8d are held against the elasticity of the core wires B1 to B4.
A plurality of core wires B1 to B4 are deformed in the direction of separating them from each other.
In an electric wire connector consisting of a cover 1 having a terminal push-down body 19 for releasing; A plurality of core wire insertion holes 3a to 3 formed
The terminals are arranged in the plurality of terminal mounting spaces 7a to 7d of the housing 2 in alternating order on one side 12 and the other side 13 so that the horizontal line L of d is placed inside. At the same time, each clamping wall 14 of the terminal mounting spaces 7a to 7d is arranged on one side 12 so as to correspond to the tip clamping part 15 of each of the plurality of terminals 8a to 8d arranged in the alternating order. and the other side 13, and are formed in terminal mounting spaces 7a to 7d.