JPH0433658Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention is a guide body used for attaching a wire connector used to connect multiple lead wires to various electrical devices, A terminalless electric wire connector that uses the electric wire itself as a direct connection terminal body without using connection terminals at the end of the electric wire or inside the connector, and in which the electric wire insertion direction and the output direction are bent at right angles. The present invention relates to a mounting guide.

<Prior art> Conventionally, this type of wire connector generally receives a crimp-connected terminal for electrical connection, such as a pin terminal, at the tip of the wire, and a metal (usually made of copper) terminal for electrical connection. ) The connector is buried.

Particularly in the case of electric wire connectors for L-shaped connection in which the insertion direction and the output direction of electric wires are perpendicular to each other, metal bodies for receiving electric wire terminals have been indispensable.

As described above, this type of conventional electric wire connector has a metal terminal body embedded in the connector body for accepting the terminal crimp-connected to the end of the electric wire as described above and making an electrical connection thereto. Even if it is necessary to manufacture this metal terminal body,
Since it requires insert processing into the connector body, there is a problem in that the manufacturing cost is inevitably high.

Therefore, in order to solve such conventional problems, the inventors of the present invention do not embed any metal connecting bodies in the connector body, and therefore do not need to manufacture metal connecting bodies for embedding. A wire connector that does not require any means for
We have already devised and filed an application for a terminalless electric wire connector in which the wire (bare wire portion) itself in a covered electric wire as a lead wire can be used directly as the output terminal of the connector.

<Problems to be solved by the invention> However, the terminalless type electric wire connector does not cause any problems if the diameter of the electric wire (bare wire portion) used as the output terminal is a specified diameter. It has been found that when an electric wire having a diameter smaller than a predetermined diameter is used, there are cases where the posture does not change to the expected L-shape. Therefore, even in such a case, we propose a guide body as an auxiliary tool that can be completely and reliably connected to a predetermined position with respect to an attached device.

<Means for solving the problems> The structure of the present invention for achieving the object will be explained using FIGS. 1 to 11 corresponding to the embodiments. It consists of a connector main body 1 in which a plurality of insertion holes 11 of the end part k are arranged in parallel on the base end side 10, and a fitting body 2 that can be fitted and fixed to the connector main body 1. In this case, a protrusion 12 is formed on the back side of the insertion hole 11 in the wire insertion direction to allow the bare wire s portion of the covered wire K with the sheath removed to pass through, but to prevent the covered portion k from passing through. On the tip side 19, there is a space 1 that allows the bare wire s portion to move downward.
3 is formed, and above it is provided a cavity 14 into which the fitting body 2 is fitted, and more desirably,
A spring-like protrusion 18 for locking the wire covering portion is formed on the upper surface. On the other hand, the fitted body 2
4, and a lower half 22 that fits into the space 13 connected to the lower half 21, and the lower half 22 has a surface facing the proximal end 10 of the connector body 1. and the proximal end 10 portion of the space 13 of the connector main body 1, there is a posture in which the bare wire s portion of the covered wire K is bent into an L-shape in the fitted posture of both bodies 1 and 2. A gap 23 is formed to allow this. The present invention is an installation guide 3 for attaching a terminalless electric wire connector A to other equipment, which is composed of a main body 1 and a fitting body 2, and includes a bottom plate 32 having the same planar shape as the electric wire connector A.
and the side plates 31, 31 rising upward from both sides thereof, the hook body 36 for attachment and locking to other equipment protruding downward, and the bare electric wire s protruding downward from the electric wire connector A... A guide hole 35 having a dish-shaped guide surface is formed in the bottom plate 32 at a position corresponding to the protrusion of the side plate 31, and two fitting recesses 33 and 34 are formed in the inner surface of the side plate 31 in upper and lower stages. , provides a structure that allows for gradual engagement and disengagement with the fitting protrusion 17 on the side surface of the main body 1.

<Function> Since the present invention has such a structure, the electric wire K whose tip has been peeled off is inserted through the insertion hole 11 of the electric wire connector A, and the bare electric wire S is inserted into the space 13 of the connector body 1. After projecting upward, the fitting body 2 is inserted into the cavity 14 of the connector body 1.
When the bare electric wire s is press-fitted, the lower half of the fitted body 2 bends the bare electric wire s into an L-shape within the space 13 due to this pressing force, and at the same time, both bodies 1 and 2
The wire connector A is forcibly positioned in the gap 23 formed by the connector main body 1, and its tip portion protrudes toward the lower surface side of the connector body 1. In this state, the wire connector A is press-fitted into the guide body 3 to enter the mating position. By doing this, the tip of the bare wire s bent into an L shape is guided into the guide hole 35 formed in the guide body 3 and protrudes to the lower surface side of the guide body 3 in a predetermined posture, and the output terminal is It fulfills its function.

<Examples> Examples of the present invention will be described below based on the drawings.

1 to 11 are diagrams showing the first embodiment of the present invention, in which FIG. 1 is an exploded overall perspective view, FIG. 2 is a front view of electric wire connector A, and FIG. 3 is a front view of electric wire connector A. This figure shows the cross-sectional shape of the electric wire connector A and the electric wire K taken longitudinally through the center line of This is an example.

For convenience of explanation, the structure of the electric wire connector A will be explained first.

The electric wire connector A is made up of two parts, a connector body 1 and a fitting body 2, which are integrally injection molded from a synthetic resin material via a thin bendable connecting part 29. is formed into a flat rectangular shape, and has three insertion holes for inserting the covered end portion k of the electric wires K, which are arranged in parallel along the longitudinal direction, biased toward one side (base end side) 10 from the approximate center of the rectangular shape. 1
1..., the upper half in the thickness direction from the center to the other end side (tip side) 19 is a cavity 14, and the lower half thereof is formed as a space 13..., and the space 13 and A small hole 15 is formed between the wire insertion hole 11 and the projection 12 that allows the bare wire s portion to pass through but prevents the covered wire K from passing through. Migration is restricted. In addition, fitting protrusions 17 and 1 that fit into fitting recesses 33 and 34 of the guide body 3, which will be described later, are provided at lower positions between the distal end side 19 and the proximal side 10 on both sides of the main body 1.
7 is formed. In addition, each electric wire insertion hole 1
A spring-like protrusion 18 for locking the wire sheathing part is formed on the upper surface side of the electric wire coating part 18, the tip of which protrudes into the insertion hole 11.
To hold the electric wire so that it does not shift in the axial direction during and after bending the end.

The fitted body 2 is composed of a rectangular upper half that fits into the cavity 14 and a lower half that fits into the space 13 below. The part located on the connecting part 29 side is particularly
As shown in the figure, the upper part is cut out in an arc shape, and when fitted to the main body 1, the bare wire s part is bent into an L shape as shown in Figures 4 and 5. In addition, a gap 23 is formed to accommodate this posture. Further, at both lower end portions of the lower half portion 22, engaging protrusions 24, 2 that engage with engaging recesses 16, 16 formed at both lower end portions of the main body 1 are provided.
4 is formed.

Further, the guide body 3 has a rectangular bottom plate 32 having the same shape as the main body 1 in the electric wire connector A,
It is formed into an upwardly open square U-shape when viewed from the front, with side plates 31, 31 rising up on both sides in the width direction;
In the mating position of the electric wire connector A, a guide hole 35 having an upward dish-shaped guide surface is formed in a portion of the bottom plate 32 corresponding to the downward protruding position of the bare electric wire s bent into an L shape, Both side plates 31, 31
recesses 33 and 34 that fit into the fitting protrusions 17 and 17 formed on both sides of the connector main body 1 are formed vertically apart, and these side plates 3
At the lower ends of 1 and 31, there is a hook body 3 for fitting and locking onto a printed circuit board P as an electrical connection body, which will be described later.
6 and 36 are formed protrudingly.

Therefore, in order to connect the electric wires K to the electric wire connector A having the above structure, first insert the three covered electric wires K into the three insertion holes 11 of the main body 1, respectively. The bare electric wires s are inserted individually into the space 13, and then the upper part of the fitted body 2 is pressed to change the state from the state shown in FIGS. 2 and 3 to the state shown in FIGS. 4 and 5 into the space 13. At the same time as the lower half of the fitted body 2 is fitted, the bare electric wire s is bent downward by the insertion operation of the lower half, and the fitted body 2
The bent portion of the bare electric wire s is accommodated in the gap 23 formed in the gap 23, and the tip of the bare electric wire s is made to protrude downward from the connector body 1.

In this way, by fitting the fitting body 2 to the connector body 1, a plurality of electric wires K...
is shaped to have a connecting pole in a direction perpendicular to its insertion direction.

Therefore, the base end of the bare wire s is connected to the connector body 1.
It is bent into an L-shape within each space 13, and its tip protrudes downward and is used as a connection pole.

The wire connector A thus constructed is moved from the state shown in Figs. 4 and 5 to the state shown in Figs. 6 and 7 by the guide body 3.
To mate with the wire connector A, insert the wire connector A into the guide body 3.
Fitting protrusions 17, 17 formed on the side surface of the main body 1 are press-fitted from above while aligning the front and rear positions.
are fitted into upper fitting recesses 33, 33 formed on the upper inner surfaces of the side plates 31, 31 of the guide body 3.
At this time, each lower end of the bare electric wire s that protrudes downward is guided by the dish-shaped guide surface above the guide hole 35 even if its posture is not in a predetermined posture such as a tilted posture. It is guided into the hole 35 and remains therein. Therefore, as described below, connector A
There is no risk of the tip of the wire hitting something else and bending until it is further pushed down and the fitting protrusion 17 on the side surface is locked in the fitting recess 34 on the lower side.

Next, after doing this, the guide body 3 is moved to the sixth,
In order to attach the printed circuit board P from the state shown in Fig. 7 to the one shown in Figs. 8 and 9, the side plate 3 of the guide body 3 is
The hook body 3 formed at the lower end of 1, 31
6, 36 into the locking holes H, H (sixth
(see figure), insert it and lock it.
Afterwards, press the wire connector A from above,
As shown in FIGS. 10 and 11, the connector body 1 is inserted so as to be in contact with the bottom plate 32 of the guide body 3.
The fitting protrusions 17, 17 are moved from the upper fitting recesses 33, 33 to the lower fitting recesses 34, 34 of the guide body 3 and fitted therein. At this time, each bare wire s protruding downward from the connector main body 1 is attached to the bottom plate 32 of the guide body 3.
It is guided by the guide hole 35 formed in the printed circuit board P, and automatically fits into the connection hole h of the printed circuit board P, and a part thereof protrudes from the back side (lower surface in the figure). Electrical connection is made by soldering this protruding portion to the printed wire p on the back side of the printed circuit board.

The printed circuit board P connected to the electric wire K in this manner is used by being attached to a chassis S for a required device, as shown in FIG. 12, for example.

The embodiment shown in FIGS. 13 and 14 is based on the connector main body 1 and the fitting body 2 in the first embodiment.
This embodiment shows a partially modified embodiment in which the connector main body 1 and the fitting body 2 are formed as separate bodies, and a series of holes vertically penetrate through the cavity 14 of the main body 1. The fitting body 2 is fitted into the cavity 14, and the wall 1' on the distal end side of the main body 1 surrounding the hole forming the cavity 14 is
As shown in the figure, the tip of the bare wire s protruding into the cavity 14 through the wire insertion hole 11 of the main body 1 is pressed against the bent position of the bare wire s, that is, downward from the bent portion. It is formed so that the lengths of the bare electric wires s protruding from each other can be made uniform.

Although the gap 23 that allows the bent position of the bare wire s portion according to the present invention is shown as being formed on the fitted body 2 side, this gap 23 may be formed on the main body 1 side. It may be formed by being partially divided into both bodies 1 and 2.

The shape of the guide body 3 in the present invention does not necessarily have to be U-shaped in cross section;
1 and 31 may be protruding, and it goes without saying that a protruding side plate may be provided on the distal end side or a protruding side plate may be formed on the proximal end side at a position that does not interfere with insertion of the electric wire K. Further, the positioning of the guide body 3 and the connector body 1 may be determined by ribs and rib grooves. Also,
The hook body 36 for attaching and locking the hook body 36 to other equipment may be of any type as long as it can be positioned, and two of the hook bodies 36 are not necessarily required, and one is sufficient.

Although the embodiments considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structure of these embodiments, and the present invention is not necessarily limited to the structure of these embodiments. It can be implemented with appropriate modification within the scope of achieving the following effects.

<Effects of the invention> As is already clear from the above explanation, the invention has the following effects:
This applies to terminalless wire connectors that do not use any metal terminals or connectors inside the connector, and instead use the bare wires of the wires to be connected directly as connection terminals. This is because the bare wires that protrude downward in the connector are made to protrude at a predetermined position.
Even when using thin bare wires that may disrupt the downward protrusion of the bare wires by the wire connector, it is important to always connect the bare wires reliably to the specified connection holes in the wire connection equipment. Moreover, it is possible to use not only an electric wire with a predetermined diameter that matches the diameter of the gap that allows the bending posture of the bare electric wire part with respect to the electric wire connector, but also an electric wire with a smaller diameter. It has been possible to expect a remarkable practical effect in that it can be used universally for several types of wires with different wire diameters.

[Brief explanation of the drawing]

1 to 11 are diagrams showing a first embodiment of the present invention, in which FIG. 1 is an overall perspective view showing a separated state, and FIGS. 2 and 3 are a front view and a front view of a wire connector portion. Center vertical sectional side view, Figures 4 and 5, Figures 6 and 7
Figures 8 and 9 and Figures 10 and 11 are diagrams showing the wire connection states over time, respectively.
Figures 8 and 10 are longitudinal sectional front views passing through the bare wire section, Figures 5, 7, 9, and 11 are central longitudinal sectional side views, Figure 12 is a side view showing an example of use, and Figures 13 and 14 are other FIG. 1 is an overall perspective view and a central vertical sectional side view showing an example. In the figure, 1 is the connector main body, 2 is the fitting body, 3 is the guide body, 10 is the proximal end side, 11 is the insertion hole, 12 is the protrusion, 13 is the space, 14 is the cavity, 17 is the fitting protrusion, 18 is a spring-like projection, 23 is a gap, 31 is a side plate, 32 is a bottom plate, 35 is a guide hole, 33 and 34 are fitting recesses, 36 is a hook body, A is a wire connector, K is a covered wire, and k is a coating The end, s, is a bare wire.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of insertion holes 11 for the wire covering end k are arranged in parallel on the base end side 10 of the connector body 1 to which the fitting body 2 can be freely inserted and removed, and on the back side in the wire insertion direction, A protrusion 12 is formed through which only the bare electric wire s from which the sheathing has been removed passes, and a space 13 is formed below the cavity 14 on the tip side 19 of the protrusion 12 to allow the bare electric wire to move downward. A gap 23 is formed in the lower half of the fitting body 2 which fits into the gap of the connector main body 1 to allow the bare electric wire s to bend in an L-shape when the bodies 1 and 2 are in the mated position. A mounting guide 3, which is formed separately from the connector A,
Also, a dish-shaped bare wire guide hole 35 corresponding to the gap 23 and a hook body 3 to be locked to other equipment.
6, and has a bottom plate 32 having the same shape as the connector A in plan view, and the inner surface of the side plate 31 rising from the bottom plate has a fitting that can be freely engaged and detached from the fitting protrusion 17 on the side surface of the connector. Matching recesses 33, 34
An installation guide for a terminalless electric wire connector, characterized in that it is formed in two stages, upper and lower. The mounting guide for a terminalless electric wire connector according to claim 1, wherein a spring-like protrusion 18 for locking the wire sheathing portion is formed on the upper surface of the connector body 1.