JPH0311821Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to an electrical connecting device used to electrically connect the ends of electrical connection wires such as lead wires through electrically conductive plates. .

[Conventional technology]

Generally, when connecting such electrical connection wires to an electrical conduction plate, a plurality of female screw parts for screwing terminal screws are provided on a common electrical conduction plate, and the end of the electrical connection wire is wound around each terminal screw. By screwing this in and tightening it, the electrical connection wire is sandwiched between the terminal washer of the terminal screw and the electrical conduction plate, and the electrical connection wire is pressed against the electrical conduction plate to make an electrical connection. There is.

[Problem that the invention attempts to solve]

With this type of connection, it is necessary to wrap the electrical connection wire around the terminal screw between the terminal washer and the electrically conductive plate, and the washer gets in the way, so usually the terminal screw is first removed from the electrically conductive plate. The work is carried out by winding the end of the electrical connection wire around this, holding this state, screwing the terminal screw into the female screw part, and tightening the terminal screw. However, these terminal screws tend to fall off when removing and installing them, making the work extremely tedious and extremely inefficient. The reality is that a great deal of effort and work time is spent on the connection work for electrical equipment that connects electrical connection lines.

This invention was devised in order to solve these conventional problems, and it is possible to connect electrical connection wires to a movable pressing plate without using terminal screws, which are the usual means for this type of connection. This attempt was made to provide an electrical connection tool that can reliably make an electrical connection to an electrically conductive plate by simply displacing and inserting it into the mounting hole.

[Means for solving problems]

In order to achieve the above object, the electrical connecting device of this invention is made of a metal material and has a connecting plate portion and a guide plate portion integrally and continuously formed in a direction perpendicular to the connecting plate portion, and connects the connecting plate portion. an electrically conductive plate having an insertion hole bored at the intersection of the plate portion and the guide plate portion; A pressing plate which is inserted into the insertion hole so as to be freely retractable and can be freely displaced relative to the electrically conductive plate, and which has a main body plate portion in which a mounting hole for an electrical connection line is formed, and which is movably inserted into the insertion hole. a compression spring that biases the pressing plate in a direction in which the mounting hole is closed by the electrically conductive plate, and a locking claw is formed at the tip of the guide plate portion of the electrically conductive plate;
The locking pawl and a portion of the inner peripheral edge engage with the main body plate portion of the pressing plate, resisting the biasing force of the compression spring, and suppressing the relative displacement of the pressing plate with respect to the electrically conductive plate within a predetermined limit. forming a locking hole that restricts the pressure, and displacing the pressing plate relative to the electrically conductive plate against the biasing force of the compression spring, and inserting the electrical connecting plate into the mounting hole in this state; The gist is that the restoring force of the compression spring presses the electrical connection wire between the connection plate portion of the electrically conductive plate and the inner peripheral edge of the mounting hole to establish an electrical connection. be.

[Effect]

In the electrical connection device configured as described above, the pressing plate, which is biased by a compression spring and whose mounting hole is closed by an electrically conductive plate, is pressed against the electrically conductive plate against the biasing force of the compression spring before connecting the electrical connection line. By displacing the mounting hole relative to the The connection wire is pressed against the connection plate portion of the electrically conductive plate by the pressing plate to be electrically connected.

〔Example〕

Hereinafter, preferred embodiments of this invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of this invention in a quadruple configuration. In the figure, electrical connection lines (not shown)
The electrical conduction plate 1 made of electrical conductors to be connected is
The central part of the rectangular plate in the transverse direction is bent at a right angle by a fold line parallel to the longitudinal sides, forming a connecting plate part 1a located horizontally and a guide plate part 1b hanging vertically from the connecting plate part 1a. Four insertion holes 1c are formed at equal intervals in the bent portion between the connecting plate portion 1a and the guide plate portion 1b. A small cylindrical locking portion 1 protruding downward from approximately the center of the connecting plate portion 1a corresponds to each of the insertion holes 1c.
d is formed, and a locking pawl 1e extends from the lower end of the guide plate portion 1b in a parallel direction to the connecting plate portion 1a.

Four pressing plates 2 having the same shape are attached to this electrically conductive plate 1. This pressing plate 2 is made of a metal material like the electrically conductive plate 1, and has an inverted L-shaped cross section, and its upper end portion is the insertion hole 1c of the electrically conductive plate 1.
The main body plate part 2a, which is inserted into the main body plate part 2a so as to be freely advanced and retracted, has a substantially semicircular mounting hole 2b in the upper part, and an elongated locking hole in the lower part into which the locking claw 1e is slidably inserted. 2c are perforated respectively, and the electrically conductive plate 1
A small cylindrical locking portion 2e projecting upward is formed on the bottom plate portion 2d facing parallel to the connecting plate portion 1a. And compression coil spring 3
However, in addition, the lower end is fitted and engaged with the locking portion 1d of the electrical conduction plate 1 and the locking portion 2e of the pressing plate 2, and the electrical conduction plate 1 and the pressing plate 2 are moved away from each other. The locking claw 1e is held in contact with the upper edge of the locking hole 2c. In this state, the mounting hole 2b of the pressing plate 2 is positioned so as to be closed by the guide plate portion 1b of the electrically conductive plate 1.

Next, the operation of the above embodiment will be explained with reference to FIGS. 2 to 4 showing the order of connection operations.

FIG. 2 shows the state before connecting the electrical connection line T, in which the compression coil spring 3 urges the electrical conduction plate 1 and the pressing plate 2 in a direction away from each other, and the locking pawl 1e is pressed. It is in contact with the upper edge of the locking hole 2c. At this time, the mounting hole 2b of the pressing plate 2 is substantially closed by the electrically conductive plate 1.

When electrically connecting the electrical connection line T to the electrically conductive plate 1, the pressing plate 2 is pressed against the electrically conductive plate 1 against the biasing force of the compression coil spring 3, as shown by the arrow in FIG. When pressed in the upward direction, the locking claw 1e slides into the locking hole 2c, and the main body plate portion 2a slides onto the guide plate portion 1b, while the pressing plate 2 is displaced in the proximity direction with respect to the electrically conductive plate 1. ,
Since the mounting hole 2b is exposed above the connection plate portion 1a, the end of the electrical connection wire T is inserted into the mounting hole 2b as shown by the dashed line in the same figure, and then the pressing force on the pressing plate 2 is applied. Release.

Therefore, the pressing plate 2 is pushed back in the return direction away from the electrical conduction plate 1 by the restoring force of the compression coil spring 3, and the electrical connection wire T inserted through the mounting hole 2b is moved as shown in FIG. It is pressed against the connection plate portion 1a of the electrically conductive plate 1 to establish an electrical connection and is held so as not to come off.
Note that when the upper edge of the guide plate portion 1b of the electrically conductive plate 1 is extended further upward than the state shown in the figure and is formed to be approximately flush with the upper surface of the connecting plate portion 1a, the electrical The connection line T is connected to the mounting hole 2 of the pressing plate 2.
b The inner edge connects the upper surface of the connecting plate portion 1a and the guide plate portion 1.
It is pressed against the upper edge of b and becomes bent and clamped. In this case, even if a pulling force is applied to the electrical connection wire T in the direction of pulling it out, even stronger pulling-out prevention force can be obtained without causing core breakage or the like. This electrical connector does not have terminal screws like conventional connectors, so
There is no need for complicated work such as removing and installing screws, and the only work required is pushing up the pressing plate 2 and inserting the electrical connection wire T into the mounting hole 2b. A reliable electrical connection can be achieved by press-contacting the T to the electrically conductive plate 1.

The electrical connectors described above are housed in a terminal case 4 as shown in FIG. 5 and used in a large number of arrays. That is, the terminal case 4 has an insertion hole 4a for the electrical connection wire T and a connection operation hole 4b, and the electrical conduction plate 1 is positioned so that the upper surface of the connection plate portion 1a corresponds to the insertion hole 4a. The case can be fixed to the wall. When electrically connecting the electrical connecting wire T to this terminal case 4 after fixing the electrically conductive plate 1 and accommodating the electrical connecting tool, the operating rod (the tip of the screwdriver) 5 is indicated by a chain line. Insert it into the connection operation hole 4b as shown, and push down the operation rod 5 as shown by the two-dot chain line.
The operating rod 5 uses the lower contact portion of the operating hole 4b as a fulcrum to push up the pressing plate 2 as shown by the two-dot chain line, so that the mounting hole 2b matches the insertion hole 4a, so the electrical connection line T is By inserting the insertion hole 4a into the mounting hole 2b using the insertion hole 4a as a guide, and then releasing the pushing up against the pressing plate 2 by the operating rod 5, the electrical connection wire T is Connection plate portion 1a of electrical conduction plate 1
be forced to.

It should be noted that this invention is not limited to the above-mentioned embodiments, and it goes without saying that various embodiments can be considered based on the scope of the claims. It goes without saying that any number of pressing plates can be provided for a common electrically conductive plate. In addition, as shown in FIG. 6, a pair of pressing plates 12 and 12' may be mounted opposite each other to the electrically conductive plate 11 via compression springs 13, or as shown in FIG. 15, each of the compression springs 16 is arranged, a female screw is screwed into the locking part 15a of the pressing plate 15, and a terminal screw 17 is screwed into the terminal screw 1.
7 may be connected to an electrical connection line T'. In the case of the electrical connector shown in FIG. 7, the electrically conductive plate 14 is displaced relative to the pressing plate 15. Furthermore, as shown in FIG. 8, an electrically conductive plate 18, a pressing plate 19, and a compression spring 20 are respectively arranged, and a terminal screw 21 is screwed into the extended portion of the electrically conductive plate 18, and the terminal screw is connected to the electrically conductive plate 18. Alternatively, a connection line T' may be connected.
In addition to the embodiments, various known means may be employed as means for displacing the pressing plate relative to the electrically conductive plate.

[Effect of idea]

As described in detail above, according to the electrical connection device of this invention, the terminal screw, which has been a common method in conventional connection devices of this type, is removed, and the pressing plate biased by a compression spring is displaced to install the device. A reliable electrical connection can be made with an extremely simple and quick connection operation, such as simply inserting the electrical connection wire into the hole, and loosening due to vibration can be prevented. In particular, this invention can be applied to electrical equipment such as sequence controllers that connect a large number of electrical connection lines, thereby significantly reducing the labor required for the work and the work time.

[Brief explanation of the drawing]

FIG. 1 is a partially exploded perspective view of one embodiment of the electrical connector of this invention, FIGS. 2 to 4 are cutaway side views showing the connection operation sequence of the connector of FIG. 1, and FIG.
This figure is a cutaway plan view of a connecting device that accommodates the connecting tool of FIG. 1, and FIGS. 6 to 8 are cutaway side views showing other embodiments of this invention. 1, 11, 14, 18... Electrical conduction plate, 2, 1
2, 15, 19...pressing plate, 2b...mounting hole,
3, 13, 16, 20... Compression coil spring, T... Electrical connection wire.

Claims (1)

[Scope of utility model registration request] It is made of a metal material and has a connecting plate part and a guide plate part integrally and continuously formed in a direction orthogonal to the connecting plate part, and an insertion hole is bored at the intersection of the connecting plate part and the guide plate part. an electrically conductive plate,
A main body plate part, which is also made of a metal material, is disposed perpendicular to the connection plate part of the electrically conductive plate, is inserted into the insertion hole so as to be movable forward and backward, and has an attachment hole for an electrical connection wire. and a pressing plate that is movable relative to the electrically conductive plate, and urges the pressing plate in a direction in which the mounting hole of the pressing plate is closed by the electrically conductive plate. A compression spring is formed, and a locking claw is formed at the tip of the guide plate portion of the electrically conductive plate, and a portion of the inner peripheral edge of the locking claw is engaged with the main body plate portion of the pressing plate. a locking hole is formed to restrict the relative displacement of the pressing plate to the electrically conductive plate within a predetermined limit against the biasing force of the compression spring; The pressing plate is displaced relative to the plate, and in this state, the electrical connection wire is inserted into the mounting hole, and the restoring force of the compression spring causes the electrical connection wire to be connected to the connection plate portion of the electrically conductive plate. An electrical connection tool that is pressed into contact with the inner peripheral edge of a mounting hole to establish an electrical connection.