JPH0745896Y2 - Electric wire connecting device and electric wire connecting terminal used therefor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The electric wire connecting device and the electric wire connecting terminal used for the electric wire connecting device of the present invention are, for example, such that a flat cable is installed between a floor and a carpet instead of a conventional round electric wire. It is used for the undercarpet system, and is used for connecting the electric wire and the flat cable of the system.

(Prior art) Wiring in offices is becoming more and more complicated and diversified with the recent rapid introduction and spread of OA equipment and information equipment, and improvement is required from the viewpoint of disaster prevention as well as aesthetics and cost. Was there. In response to this, a wiring method using the undercarpet system was developed, and the above problems were greatly improved.

This system requires an electric wire connecting device for connecting an ordinary round electric wire and a flat cable laid between the floor and the carpet. The main thing of this connecting device is the 8th
There is something like the one shown in the figure. This is a flat cable A
As shown in FIG. 9, a connector C, which is crimped through and is electrically connected to a conductor (not shown) in the cable A, and a crimp terminal F, which is crimped and fixed to a core wire E of a round electric wire D, are provided. And the screw J is inserted into the through hole H of the connector C and the through hole G of the crimp terminal F, and the screw J is screwed and fixed to the screw hole L provided in the terminal block K, thereby flattening. The cable A and the electric wire D are electrically connected to each other, and the terminal block K is housed in an electric wire connection box attached to a wall surface or a floor surface in the room.

(Problems to be Solved by the Invention) The conventional wire connecting device has the following problems.

． As shown in FIG. 8, a crimp terminal F is attached to the core wire E of the round electric wire D.
Since they must be fixed by crimping and screwed as shown in FIG. 9, the wire connection work is troublesome, troublesome, and the workability is poor.

． As shown in FIG. 9, the crimp terminals F are stacked on the connector C, placed on the terminal block K, and the screw J is screwed from above the terminal block K. The height h (FIG. 9) becomes high. Therefore, the electric wire connection box for accommodating the terminal block K to which the round electric wire D and the flat cable A are attached must be deep and the height becomes high. Therefore, when the same box is installed on the floor or wall, they protrude and take up space, which is an obstacle and is not well-formed. In order to reduce the protruding size of the box, it is sufficient to make a hole in the floor or wall and store the box in the hole, but doing so makes the hole construction difficult. In addition, there are places where holes cannot be drilled depending on the location, which limits the drilling.

(Purpose of the Invention) The purpose of the present invention is to connect an electric wire connecting device that does not protrude so much even if it is installed as it is without making holes on the floor or wall surface, and does not require crimping terminals to be crimped or screwed to the electric wire. An object of the present invention is to provide an electric wire connection terminal that can be sandwiched in a conductive state simply by inserting it.

(Means for Solving Problems) According to the first electric wire connecting device of the present invention, as shown in FIG. 1, an electric wire inlet 1 capable of inserting a plurality of electric wires and a flat cable are set. A board 4 having a possible cable recess 40, two or more frame-shaped terminal housings 3 having an upper opening provided between the wire inlet 1 and the cable recess 40, and the terminal housing 3 When the core wire 20 of the electric wire D which is housed in the terminal housing portion 3 and is drawn in from the electric wire inlet 1 is inserted, It is possible to mount the wire clamp portion 7 that can be clamped, and the flat cable A that is formed on the opposite side of the wire clamp portion 7 and that protrudes outward from the terminal housing portion 3 and that is set in the cable recess 40. With the cable connection 8 It is characterized in that the Ete made.

The second electric wire connection terminal of the present invention is the first electric wire connection terminal.
As shown in the figure, in an electric wire connection terminal 5 for connecting an electric wire D drawn from an electric wire entrance 1 formed in a board 4 and a flat cable A, the terminal 5 is a frame-shaped terminal housing of the board 4. The wire holding part 7 accommodated in the part 3 and the cable connecting part 8 projecting outward from the terminal housing part 3 and capable of mounting the flat cable A set in the cable recess 40 are provided. The attachment part 7 is a box 9 housed in the terminal housing 3, a connector 6 for connecting the core wire 20 of the electric wire D and the flat cable A, and a spring plate 10 housed in the box 9. With and
An electric wire D drawn into the box body 9 from the electric wire inlet 1
The core wire insertion port 31 into which the core wire 20 of FIG. 1 can be inserted is formed, and the core wire 20 inserted from the core wire insertion port 31 is formed in the connector 6 as the spring plate.
A sandwiching portion 11 that is housed in the box body 9 so as to be sandwiched between the sandwiching box 10 and the box body 9 and is formed in a direction opposite to the sandwiching portion 11 and
And a cable connecting portion 8 projecting outward from the terminal housing portion 3 to which the flat cable A can be attached,
The box body 9 is characterized in that a lid 14 can be fitted over the spring plate 10 and the sandwiching portion 11 of the connector 6 housed therein.

(Operation) The wire connecting device of the present invention and the terminal used therefor are used as follows.

First, as shown in FIG. 2 (a), the electric wire connection terminal 5 of FIG. 1 accommodates a spring plate 10 and a sandwiching portion 11 of a connector 6 in a box body 9 and, as shown in FIG. ) Box 9
Slide lids are fitted in the fitting grooves 13 formed on both inner walls 12 in the width direction.
14 is fitted and inserted in the direction of the arrow and assembled as shown in FIG.

In the present invention, the box 9 of the wire connection terminal 5 is fitted in the terminal fitting portion 16 provided in the cable mounting jig 15 as shown in FIG.

Next, the release paper 17 attached to the back surface of the cable connecting portion 8 of the electric wire connecting terminal 5 is peeled off, and the end portion of the flat cable A is attached to the cable connecting portion 8 as shown in FIG.
Temporarily fix with the adhesive applied to the back surface of the. In this state, the wire connection terminal 5 is crimped as shown in FIG.
Then, the end portion of the flat cable A and the cable connecting portion 8 are crimp-connected by the connector 19.

On the other hand, as shown in FIG. 5, the electric wire D is drawn in from the electric wire drawing-in port 1 of the substrate 4 mounted on the floor or wall surface, and the end of the electric wire D is peeled off to expose the core wire 20.

Next, the core wire 20 is inserted into the insertion groove 25 formed in the rear wall 24 of the terminal fitting portion 16 as shown in FIG. 6, and the flat cable A as shown in FIG. 7 (b) is connected. The electric wire connecting terminal 5 is inserted up to the electric wire clamping portion 7 so that the core wire 20 is clamped by the clamping portion 7.

After that, as shown in FIG. 4, the electric wire connection terminal 5 in which the flat cable A and the electric wire D are connected is taken out from the mounting jig 15, and the box 9 of the terminal 5 is attached to the board 4 as shown in FIG. Stored in the terminal compartment 3.

Then, the substrate 4 set as shown in FIG. 1 is covered with a cover (not shown) to complete the construction.

(Embodiment) FIGS. 1 to 7 show an embodiment of the wire connecting device of the present invention and the wire connecting terminal used therein.

In these figures, reference numeral 4 denotes a substrate mounted on the floor or wall surface, which is made of plastic. An electric wire inlet 1 is formed in the substrate 4, and the electric wire inlet 1 is for introducing the electric wire D wired on the floor or wall into the inside of the substrate 4.

Further, the board 4 is formed with a cable recess 40 in which a flat cable can be set.

Further, of the board 4, the wire inlet 1 and the cable recess 40
The same number of frame-shaped terminal accommodating portions 3 having an upper opening are arranged in a line in the wiring direction of the same conductors as the number of conductors of the flat cable A. The terminal housing 3 is formed in a frame shape with an upper opening so that the box 9 of the wire connection terminal 5 can be housed therein, and the rear wall 22 of the terminal housing 3 has a core as shown in FIG. A line insertion groove 23 is formed. As shown in FIG. 6, the concentric wire insertion groove 23 is provided with the core wire 20 of the electric wire D drawn from the electric wire drawing port 1.
The core wire 20 inserted from here is inserted and pinched in the wire pinching part 7 of the wire connecting terminal 5 housed in the terminal housing part 3 as shown in FIG. There is.

Reference numeral 5 shown in FIGS. 1 to 7 is an electric wire connection terminal.
As shown in FIG. 2, this wire connection terminal 5 has a box 9 housed in the terminal housing 3, a spring plate 10 housed in the box 9, a core wire 20 of the wire 0D, and a flat cable A. And a connector 6 for connecting and.

As shown in FIG. 2, the box body 9 has a core wire insertion port 31 for inserting the core wire 20 of the electric wire D in a peripheral wall 30 thereof, and a core wire discharge port 33 in a side wall 32 facing the core wire insertion port 31. Has been formed.

As shown in FIG. 7 b, the spring plate 10 has an elastic locking piece 26 bent at an acute angle to the core wire 20 side of the electric wire D inserted in the box 9.
And an elastic contact piece bent into a U shape on the concentric line 20 side
27 and are provided.

Moreover, the elastic locking piece 26 is provided with the core wire 20 as shown in FIG. 7 (b).
By bending it at an acute angle in the insertion direction of the
When inserting, the end face corner portion 28 of the elastic locking piece 26 is pressed against the core wire 20 by tilting in the insertion direction, and if a force is applied to the core wire 20 to the left side (removal direction) in the figure, the concentric The wire 20 is pulled in the same direction and spreads outward (to the left) to prevent the core wire 20 from coming off.

By bending the elastic contact piece 27 in the direction opposite to the inserting direction of the core wire 20 as shown in FIG. 7B, the contact portion 29 of the contact piece 27 is inserted in the inserting direction (right side) when the core wire 20 is inserted. It is pushed to the outside (to the right side), and thereby the pressure contact force to the core wire 20 is strengthened, and the concentric wire 20 is pressed and contacted to the side wall 11a of the sandwiching portion 11 of the connector 6.

As shown in FIG. 2, the connector 6 has a sandwiching portion.
11 and a cable connection 8 are provided. This pinching part 11
Is formed with a side wall 11a fitted in the box 9,
The cable connecting portion 8 is integrally formed with the sandwiching portion 11 in the opposite direction, projects outward from the box body 9 and the terminal accommodating portion 3, and is formed in a thin plate shape so that the flat cable A can be attached.

As shown in FIG. 4, the cable connecting portion 8 is connected to the flat cable A by being crimped through the eyelet-shaped connector 19 by the crimping tool 18 in a state of being superposed on the flat cable A. An adhesive is applied to the back surface of the cable connecting portion 8, and a release paper 17 is attached thereon.

As shown in FIG. 7 (a), the electric wire holding portion 7 has the side wall 11a of the holding portion 11 of the connector 6 located outside the spring plate 10 fitted in the box 9. By being inserted into the box body 9 as described above, the concentric wire 20 can be sandwiched by only inserting the core wire 20 between the spring plate 10 and the side wall 11a.

In addition, as shown in FIG. 2, the core wire outlet 33 formed in the box 9
Is a side wall 11 of the spring plate 10 and the connector 6 as shown in FIG. 7 (b).
When removing the electric wire D inserted and sandwiched between a and the a for repair work or the like, the core wire 20 is cut by the aa wire outside the box body 9 in FIG. This is for allowing the cut end 20a of the core wire 20 previously cut by the concentric wire 20 to be pushed out from the core wire discharge port 33 when the core wire 20 is inserted through the core wire insertion opening 31. In this way, the scrap 20a can be easily discharged without disassembling the terminal.

Reference numeral 15 shown in FIGS. 3 to 6 is a mounting jig used when connecting the flat cable A and the wire connection terminal 5. As described above, the terminal fitting portions 16 are formed in a line on the mounting jig 15. Positioning protrusions 34 that determine the position of the flat cable A in the width direction are formed at both ends in the width direction so that the connection of the cable 2 can be performed accurately and easily.

(Effect of the Invention) The wire connecting device of the present invention has the following various effects.

． Since the wire connection terminal 5 is housed in the frame-shaped terminal housing portion 3 of the substrate 4, the wire connection terminal in which the flat cable A and the wire D are previously connected by using the mounting jig 15 as shown in FIG. 5 can be removed from the same mounting jig 15 and replaced in the terminal housing 3 of the board 4 as shown in FIG. Therefore, the flat cable A and the electric wire D can be connected to the electric wire connection terminal 5 before the electric wire connection terminal 5 is set on the substrate 4, and the connection work is facilitated.

． Since the cable connecting portion 8 and the electric wire sandwiching portion 7 are formed on the opposite sides, the electric wire D and the flat cable A can be wired on the same plane and on the same line from mutually opposite directions. Therefore, the height does not become higher than that of the conventional structure in which the electric wire D and the flat cable A are overlapped and connected.

． Since the wire connection terminal 5 is housed in the frame-shaped terminal housing 3 of the substrate 4, the wire connection terminal 5 does not project from the housing 3 and the height does not increase. Therefore, even if the wire connecting device of the present invention is housed in the wire connecting box and mounted on the floor, it does not project so much upward. Therefore, of the carpet laid on the box, if you cut out and remove the part of the carpet that covers the box,
The upper surface of the electric wire connection box and the upper surface of the carpet are substantially at the same height, and there is no possibility that only that portion protrudes and becomes an obstacle like when a carpet is laid on the box.

． Since the wire entry port 1 is formed in the board 4, it is easy to draw the wire D on the floor or wall surface into the board 4.

． Since the cable recess 40 is formed on the substrate 4,
If the flat cable is stored in the cable recess 40,
The flat cable does not protrude upwards, the appearance of the wiring is good, and it does not interfere.

． Just insert the core wire 20 of the wire D into the wire connection terminal 5, and the concentric wire 20 can be easily clamped.
Since it is not necessary to crimp and fix the crimp terminal to the terminal and to screw the crimp terminal to the terminal block, workability is improved and the cost is reduced accordingly.

The wire connection terminal of the present invention has the following various effects.

． Since the lid 14 can be fitted onto the box body 9 from above the spring plate 10 and the sandwiching portion 11 of the connector 6 housed therein,
Electric wire connection terminal 5 in which the flat cable A and the electric wire D are connected in advance using the mounting jig 15 as shown in FIGS.
6 is removed from the mounting jig 15 of FIG. 6 and is replaced in the terminal storage portion 3 of the board 4 as shown in FIG. 1, the spring plate 10 and the connector 6 stored in the box 9 are The sandwiching portion 11 does not come off from the box 9, and the storage and replacement becomes easy.

． The wire holding portion 7 is a frame-shaped terminal housing portion 3 of the substrate 4.
Since it is not housed inside and protrudes upward from the housing part 3, the height does not become high.

． Since the core wire insertion opening 31 into which the core wire 20 of the electric wire D drawn from the electric wire introduction opening 1 can be inserted is formed in the box body 9, the core wire to the wire holding portion 7 in the box body 9 is formed. Easy to insert 20.

． Since the connector 6 has the pinching portion 11, it is housed in the box body 9 together with the spring plate 10 and the core wire 20 inserted from the core wire insertion port 31 is sandwiched between the core plate 20 and the spring plate 10. It is possible to wear it, and the sandwich structure is simplified.

． Since the cable connecting portion 8 to which the flat cable A can be attached is formed so as to project in the opposite direction to the holding portion 11 of the connector 6 and outward from the box body 9 and the terminal housing portion 3, the holding portion 11 Since the electric wire D and the flat cable A sandwiched between the two sides are wired on the same plane and on the same line from the opposite directions, compared to the conventional structure in which the electric wire D and the flat cable A are overlapped and connected. It doesn't grow tall.

． As described above, since the electric wire D and the flat cable A are wired in the electric wire connection terminal 5 from the opposite directions on the same plane and on the same line, the height is not increased, and
The spring plate 10 housed in the box 9 and the sandwiching portion of the connector 6
Since the lid 11 holds the wire connection terminal 5, the wire connection terminal 5 does not float upward even if the wire connection terminal 5 is not screwed to the terminal housing portion 3 unlike the conventional case. For this reason, the electric wire connection terminal 5 has a short height, and the electric wire connection box for storing the electric wire connection terminal 5 may have a short height.
Therefore, even if the electric wire connection box is mounted on the floor, the electric wire connection box does not project so much upward, and even if the electric wire connection box is directly installed on the floor or the wall surface, it does not get in the way and the appearance is good. Therefore, when mounting the box on a floor or a wall, it is not necessary to make holes for accommodating them to reduce the protruding height, and the mounting work becomes easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a wire connecting device of the present invention, and FIGS. 2 (a), (b) and (c) are assembly perspective views showing an example of a terminal used in the wire connecting device of the present invention. 3 to 6 are perspective views for assembling the electric wire connecting device of the present invention, and FIGS. 7a and 7b are transverse cross-sectional views for explaining the electric wire clamping state in the clamping part of the terminal of the present invention, and FIG. Is an assembly explanatory perspective view of a connection structure used in a conventional wire connection device,
FIG. 9 is a side view of a conventional connection structure. 1 is a wire inlet 3 is a terminal housing 4 is a board 5 is a terminal 6 is a connector 7 is an electric wire clamping part 8 is a cable connecting part 9 is a box 10 is a spring plate 11 is a clamping part 20 is a core wire 31 Is the core wire insertion port 40 is the cable recess A is the flat cable D is the electric wire

Claims (2)

[Scope of utility model registration request] 1. An electric wire inlet 1 for inserting a plurality of electric wires, and a cable recess for setting a flat cable.
40, a board 4 provided with two or more frame-shaped terminal accommodating portions 3 having an upper opening provided between the wire inlet 1 and the cable recess 40, and accommodated in the terminal accommodating portion 3. The electric wire connection terminal 5 is housed in the terminal housing portion 3 and can be pinched by inserting the core wire 20 of the electric wire D drawn from the electric wire inlet 1 Electric wire holding part 7 and the same electric wire holding part 7
And a cable connecting portion 8 to which the flat cable A, which is formed in a direction opposite to the above and which projects outward from the terminal housing portion 3 and is set in the cable recess 40, can be attached. . 2. An electric wire connection terminal 5 for connecting an electric wire D drawn from an electric wire entrance 1 formed in a board 4 and a flat cable A, the terminal 5 being a frame-shaped terminal housing of the board 4. The electric wire holding portion 7 housed in the portion 3 and the flat cable A protruding outward from the terminal housing portion 3 and set in the cable recess 40.
And a cable connecting portion 8 to which the electric wire holding portion 7 can be attached, the electric wire holding portion 7 is a box body 9 housed in the terminal housing portion 3, and a connector 6 for connecting the core wire 20 of the electric wire D and the flat cable A. And a spring plate 10 housed in the box 9, and the box 9 has a core wire insertion port 31 into which the core wire 20 of the electric wire D drawn from the electric wire drawing port 1 can be inserted. Formed and connector 6
The core wire 20 inserted from the core wire insertion opening 31 is attached to the spring plate 10
And a sandwiching part 11 housed in the box 9 so that it can be sandwiched between the box and the container, and is formed in a direction opposite to the sandwiching part 11 and protrudes outward from the box 9 and the terminal storage part 3 to be flat. A cable connecting portion 8 to which the cable A can be attached is formed, and a box 9 has a spring plate 10 accommodated therein and a connecting portion for the connector 6.
An electric wire connection terminal characterized in that a lid 14 can be fitted over the top of 11.