JPH08148196A - Connector for wire connection - Google Patents

Abstract

PURPOSE: To provide a connector capable of ensuring proper contact with the conductor of an insulated wire mechanical holding, and reliable connection over a long term, regarding a connector for holding a cable along the shield thereof. CONSTITUTION: The first frame 4 with a wire holding groove 1 at the center is provided, together with the second frame 8 having a wire holding groove 5 at the center. Bolts 9 are arranged, so as to pass through both sides of each of the frames 4 and 8, and bolt heads 9a are engaged with the external surface of the first frame 4. The forward end of each bolt 9 is screwed to the nut section 10 of the second frame 8, and approximately V-shaped blades 18 are formed to be projected within the wire holding groove 5 of the second frame 8. The inner peripheral sections of the blades 18 are formed to have such an angle and depth as slightly press and contact the external surface of the conductor of the wire, while the end of each blade 18 faced to the opening of the groove 5 is formed to have an acute angle, respectively when a wire is held with the grooves 1 and 5. Also, branch wire holding grooves 16 and 17 are formed in such a state as coming in contact with each other under pressure, when the bolts 9 are tightened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire connecting connector used for connecting other branch lines such as connecting an insulated wire for high voltage distribution and a high voltage down line (PD wire).

[0002]

2. Description of the Related Art Insulated wire for high voltage distribution (copper wire, aluminum wire)
When connecting a high-voltage pull-down wire (PD wire) to each other, conventionally, the insulation coating of each electric wire is peeled off manually, the separator (plastic thin film) interposed between the insulation coating and the core conductor is stripped off, and then After brushing the oxide film on the conductor surface of the core wire, after securing the electrical contact, applying a compound to prevent rainwater from entering and to prevent corrosion and electrolytic corrosion of the conductor surface, or a connecting member to which the compound is applied ( It was connected and connected by a connector, etc.).

Further, when separately connecting a high-voltage distribution insulated wire (copper wire, aluminum wire) and a high-voltage pull-down wire (PD wire),
In some cases, the needle-shaped electrodes penetrating the insulating coating of the distribution line without peeling off the insulating coating are connected by a connecting member mounted above and below.

[0004]

However, in the conventional connector, the insulating coating is peeled off for connection, which requires considerable workability and work time, and there is room for improvement in terms of work safety. Furthermore, in a connector that is connected from above the coating without peeling the coating, the insertion electrode that passes through the coating and measures the conductor contact has a needle-like shape or a similar shape, and the conductor is not contacted when contacting the core wire. There is a risk of piercing the constituent wires, being inserted between the wires or bending the needle-like electrode, and further improving contact reliability, quality, and workability such as damage to the core wire. There is a need.

The present invention has been made in view of the above points, and it is a connector for connecting from above the coating without peeling the coating, which can be connected by an indirect method such as a robot, and the core wire of the insulated wire. The present invention provides a connector for electric wire connection that ensures reliable contact with an electric wire and ensures reliable mechanical connection over a long period of time.

[0006]

SUMMARY OF THE INVENTION Therefore, the invention of claim 1 is such that a first frame having a wire gripping groove in a central portion and a second frame having a wire gripping groove in a central portion are arranged such that the wire gripping grooves are opposed to each other. Provided facing each other, these first frame and second frame
Bolts penetrating both sides of the frame are provided respectively, and the bolt head is locked to the outer surface of one of the first frame or the second frame, and a nut provided on one of the first frame or the second frame. The tip of the bolt is screwed to the portion, a substantially V-shaped blade is projectingly provided in the electric wire holding groove of the first frame or the second frame, and the electric wire is held in the electric wire holding groove. The inner edge of the blade of the mold has an angle and depth to slightly press and contact the outer circumference of the core of the electric wire, and the end of each blade facing the opening of the electric wire gripping groove has an acute angle, and the bolt is tightened. Thus, the electric wire connecting connector provided with the branch line gripping groove that is pressed against each other.

According to a second aspect of the present invention, a first frame having a wire gripping groove in the center and a second frame having a wire gripping groove in the center are provided with their wire gripping grooves facing each other. Bolts penetrating both sides of the first frame and the second frame are respectively provided, and the bolt head is locked to the outer surface of one of the first frame or the second frame, and the first frame or the second frame. The tip of the bolt is screwed to the nut portion provided on the other side of the frame, a split spacer is provided in the inner portion of the first frame or the second frame, and the overlapping surface is superposed on the split spacer to fit the spacer. The opening of the spacer is used as the one electric wire gripping groove, and a blade having a substantially V shape is provided in the electric wire gripping groove so that the electric wire gripping groove grips the electric wire. Inner edge of the wire There is an angle and a depth to slightly press and contact the outer circumference of the core wire, and the end of each blade facing the opening of the wire grip groove is an acute angle, and the bolt is tightened on the overlapping surface of the split spacer and the spacer. A branch wire gripping groove which is pressed against each other by means of a wire, and a wire connecting connector in which a pressing blade is provided at the center of the wire gripping groove of the first frame or the second frame facing the wire gripping groove having the blade. did.

[0008]

According to the first aspect of the present invention, the insulated wire is inserted into the electric wire gripping grooves of the first frame and the second frame which face each other, and the core wire of the branch wire is inserted into the branch wire gripping grooves of the frames facing each other. Insert and tighten the bolts on both sides of these frames. As a result, the first frame and the second frame approach each other, and the insulated wire is pushed into the other wire holding groove by the one wire holding groove. Then, the coating is cut by the sharp-edged end of the substantially V-shaped blade provided in the groove, the core wire of the insulated wire enters the substantially V-shaped groove, and these blades are Touch while pressing both sides. Therefore, the insulated wire and the branch wire are electrically connected through the connector.

According to the second aspect of the present invention, the insulated wire is inserted into the electric wire gripping grooves of the first frame and the second frame which face each other, and the insulated wire is provided on the overlapping surface of the spacer and the split spacer of the second frame. Insert the core wire of the branch wire into the branch wire grip groove and tighten the bolts on both sides of these frames.
As a result, the first frame and the second frame approach each other, and the insulated wire is pushed into the other wire holding groove by the one wire holding groove. Therefore, the coating is cut by the sharp-edged end of the blade provided in the groove in a substantially V-shape, and the core wire of the insulated wire enters the substantially V-shape groove, and these blades are Both sides of the core wire are pressed and brought into contact with each other. At that time, the pressing blade projecting from the inner circumference of the other wire gripping groove presses the other side of the wire. Also, by tightening the above bolts, the spacers and the divided spacers also come close to each other and overlap in the second frame,
The branch line is held in the branch line grip groove. Therefore, the insulated wire and the branch wire are electrically connected through the connector.

[0010]

Embodiments of the present invention will be described below. A first frame 4 in which a first spacer 2 having an electric wire holding groove 1 on one side is fitted in a central recess 3 and an electric wire holding groove 5 on one side
The second frame 8 in which the second spacer 6 having the above is fitted in the central recess 7 is provided so that the wire grip grooves 1 and 5 face each other. Bolts 9 penetrating both sides of the first frame 4 and the second frame 8 are provided respectively, and the heads 9a of the respective bolts 9 are locked to the outer surface of the first frame 4, and also on both sides of the second frame 8. The tip of the bolt 9 is screwed onto the provided nut portion 10.

A plurality of pressing blades 11 are provided at intervals on the upper surface of the inner circumference of the wire holding groove 1 of the first spacer 2 of the first frame 4. Each of these pressing blades 11 has a sharp tip. A guide rod 12 is provided in the central recess 3 of the first frame 4 so that the first spacer 2
The tip can be freely inserted into the recessed portion 13 bored in. Several disc-shaped springs 14 are mounted on the outer circumference of the guide rod 12 between the inner circumference of the central recess 3 and the first spacer 2.

The second spacer 6 of the second frame 8 is divided in the central concave portion 7, a dividing spacer 15 is provided in the inner portion of the central concave portion 7, and the second spacer 6 is formed on the divided spacer 15 by a second portion.
The overlapping surfaces of the spacer 6 are overlapped and fitted. Branch line gripping grooves 16 and 17 are provided on the overlapping surface of the divided spacer 15 and the second spacer 6 so as to be pressed against each other by tightening the bolt 9. Further, as shown in FIGS. 1 and 3, a plurality of V-shaped blades 18 are provided at intervals on the inner circumference of the electric wire gripping groove 5 of the second spacer 6, and each of the V-shaped blades 18 is formed. The angle and the depth of the groove to be formed are such that when the electric wire is held in the electric wire holding groove 5, the outer circumference of the core wire of the electric wire is slightly pressed and brought into contact with the wire. The end of each of these blades 18 facing the opening of the wire gripping groove 5 has an acute angle as shown in FIG.

In the case of this embodiment, the first frame 4 and the second frame 4
The insulated wire 19 is inserted between the electric wire gripping grooves 1 and 5 facing the frame 8 and the branch wire gripping groove 16 provided on the overlapping surface of the second spacer 6 and the split spacer 15 of the second frame 8. The core wire 20 of the branch line is inserted between the parts 15 and 15, and the bolts 9 on both sides of these frames are tightened. As a result, the first frame 4 and the second frame 8 approach each other, and the insulated wire 19 is pushed into the other wire grip groove 5 by the one wire grip groove 1. Therefore, as shown in FIG. 4, the coating 19 is cut by the sharp-edged end of each V-shaped blade 18 provided in the electric wire grip groove 5, and these blades 18 are formed on both sides of the core wire 19 a of the insulated electric wire 19. And contacts both sides of the core wire 19a while pressing them. At the same time, the pressing blade 11 of the wire gripping groove 1 of the first spacer 2 breaks the insulation wire 19 and reaches the outer circumference of the core wire 19a.

At this time, the first spacer 2 has the spring 14
Although it protrudes from the central recess 3 of the first frame 4, the first spacer 2 enters the inner recess of the central recess 3 against the force of the spring 14 by tightening the bolt 9. The second spacer 6 and the split spacer 15 also approach and overlap in the second frame 8 when the bolt 9 is tightened, and the core wire 20 of the branch wire is held in the branch wire grip grooves 16 and 17 as shown in FIG. It Therefore, the insulated wire 19 and the core wire 20 of the branch wire are electrically connected via the connector.

Moreover, in the above embodiment, since the pressing blade 11 having a sharp tip is provided in the wire holding groove 1 of the first spacer 2, as shown in FIG. 6, the core wire is provided in the groove of the V-shaped blade 18. The outer periphery of the insulated wire 19 containing 19a is pressed, and the core wire 19a of the insulated wire 19 is indicated by an arrow A in FIG.
As shown by B and C, the force is evenly applied to three places on the outer circumference, and the blade is pressed and brought into contact with the above blade.

In the above embodiment, the first frame 4
Although the first spacer 2 having the wire gripping groove 1 is provided in the central recessed portion 3, the wire gripping groove 1 may be integrally provided in the first frame 4. Further, in each embodiment, the blade having the above configuration may be provided in either one of the electric wire gripping grooves facing each other. Further, in the above embodiment, the tip of the pressing blade is made sharp, and the pressing blade is configured to break the insulation wire coating when pressed, but even if the tip of the pressing blade is not sharp, the coating is Any shape may be used as long as it can be inserted and the cutting edge can reach the core wire. Further, in the above-mentioned embodiment, the blade is substantially V-shaped, but when the wire is gripped in the wire gripping groove, the V-shaped blade is slightly curved on both sides. Any shape may be used as long as the blade contacts.

[0017]

According to the first aspect of the present invention, the insulated wire to be gripped is placed between the opposing wire gripping grooves, and the branch wire is placed between the opposing branch wire gripping grooves. When the bolt is tightened, one electric wire holding groove and the mutual branch wire holding groove come close to each other, and these electric wires are held, so that the main line and the branch line can be connected very easily. At that time, if the insulated wire is held in the wire holding groove while being covered, a substantially V-shaped blade provided in one wire holding groove cuts the covering,
The blade comes into contact with the core wire of the insulated electric wire, and the connecting work is easy. Moreover, the angles and depths of these substantially V-shaped blades are such that the inner edge of the V-shaped blade slightly presses and contacts the outer circumference of the core wire of the electric wire when the electric wire is gripped by the electric wire grip groove. Therefore, the V-shaped blade holds the core wire, and the electric contact becomes reliable and strong. Further, in this way, the angle of the substantially V-shaped blade is made substantially the same as the outer diameter of the core wire of the electric wire to be grasped in advance, and the depth of the blade in the electric wire grasping groove is made to correspond to the thickness of the coating of the electric wire to be grasped. Therefore, the core wire is not damaged even by the gripping.

The invention of claim 2 has the same effect as that of the invention of claim 1, but further has one wire holding groove having a substantially V-shaped blade and the other wire holding groove facing the other wire holding groove. The pressing blade provided inside presses the other outer circumference of the insulated electric wire having the core wire in the groove of the substantially V-shaped blade, the electric wire is mechanically pressed at three points, and Contact can be made more reliable and contact loosening due to coating creep can be prevented.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is an exploded sectional view of an embodiment of the present invention.

FIG. 3 is an exploded side sectional view of a first spacer, an electric wire and a second spacer according to an embodiment of the present invention.

FIG. 4 is a sectional view of a process of gripping an electric wire according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a usage state of the embodiment of the present invention.

FIG. 6 is a cross-sectional view of essential parts in a use state of an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Electric wire gripping groove 2 1st spacer 3 Central recessed part 4 1st frame 5 Electric wire gripping groove 6 2nd spacer 7 Central recessed part 8 2nd humm 9 Bolt 10 Nut part 11 Holding blade 15 Split spacer 16 Branch line gripping groove 17 Branch line gripping Groove 18 Blade 19 Insulated wire 20 Branch wire core wire

Claims (2)

[Claims] 1. A first frame having an electric wire gripping groove in the central portion and a second frame having an electric wire gripping groove in the central portion are provided with their electric wire gripping grooves facing each other, and the first frame and the second frame are provided. Bolts penetrating both sides of the frame are provided respectively, and the bolt head is locked to the outer surface of one of the first frame or the second frame, and a nut provided on one of the first frame or the second frame. When the tip of the bolt is screwed to the portion, a blade having a substantially V shape is projected in the electric wire holding groove of the first frame or the second frame, and when the electric wire is held in the electric wire holding groove, The inner edge of the V-shaped blade slightly presses the outer circumference of the core wire of the electric wire, and has an angle and a contacting depth, the end of each blade facing the opening of the electric wire gripping groove is an acute angle, and Providing a branch line grip groove that presses against each other by tightening A connector for connecting electric wires, which is characterized in that 2. A first frame having an electric wire holding groove in the central portion and a second frame having an electric wire holding groove in the central portion are provided with their electric wire holding grooves facing each other, and the first frame and the second frame are provided. Bolts penetrating both sides of the frame are provided respectively, and the bolt head is locked to one outer surface of the first frame or the second frame, and a nut provided on the other of the first frame or the second frame. The tip of the bolt is screwed to the portion, a split spacer is provided in the inner part of the first frame or the second frame, and the spacer is fitted by overlapping the overlapping surface on the split spacer, and the opening of the spacer Is one of the electric wire gripping grooves, and a blade having a substantially V-shape is projected in the electric wire gripping groove, and when the electric wire is gripped by the electric wire gripping groove, the inner edge of the V-shaped blade is the core wire of the electric wire. Slightly press the outer circumference, There is an angle and a depth to contact, the end of each blade facing the opening of the wire grip groove is an acute angle,
Branch wire gripping grooves that are pressed against each other by tightening the bolts are provided on the overlapping surface of the divided spacers and the wire gripping grooves of the first frame or the second frame facing the wire gripping grooves having the blades. A connector for connecting electric wires, characterized in that a pressing blade is provided in the center.