JP2006338882A - Electric wire connector with insulation cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for connecting electric wires with insulation cover of simple structure and low cost which is useful in such environment that waterproof is not imperative, of which a cover is detachable with a single action. <P>SOLUTION: The electric wire connector with an insulation cover comprises a connection assisting body which has a projection for connecting electric wires together, and an insulation cover comprising a recess corresponding to coping with the projection. After connection of the electric wires, the insulation cover is easily attached to make the projection of the connection assisting body contact the recess of the insulation cover to step dislocating the insulation cover in the extension direction of the electric wire. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is for connecting an electric wire such as a wire or a cable, and can be covered with an insulating cover in a very simple manner in a short time, and is easy to manufacture with an insulating cover The present invention relates to a wire connector.

Conventionally, when an electric wire is connected in electrical work, the exposed portion (connecting portion) of the metal portion of the electric wire is covered with an insulator for the purpose of protection from electric shock. Various examples are shown below as the means. The simplest method is to cover the connection part with an insulating vinyl tape. This is convenient when there is no device for covering, but there is an inconvenience that it is difficult to entrain when there is a trouble of winding the tape and only one of the wires needs to be wound. It was. FIG. 8 is a diagram showing a commercially available waterproof connector that is often used. This is for complete waterproofing. The operation will be described in 8-A. Reference numeral 801 denotes an electric wire from the left side, and a terminal having a circular hole is attached to the tip of the electric wire. Reference numeral 802 denotes an electric wire from the right side, and similarly, a terminal having a circular hole is attached to the tip thereof. First, in order to connect the electric wires, the holes of the circular terminals of both electric wires 801 and 802 are aligned and tightened with screws 803 to connect them. After that, the cap 804 is moved so as to cover the connecting portion of the electric wire. Male screw portions 805 and 806 are provided at both ends of the cap 804. Therefore, by tightening the left female screw 807 and the right female screw 808 to the male screw parts 805 and 806, the connection work for the entire connector is completed. This is an extremely excellent structure having a waterproof structure that does not allow water to pass by contact between the male screw portions 805 and 806 and the female screw portions 807 and 808. However, for applications that do not require a waterproof structure, screwing is an extra work and the structure is complex, which is inconvenient and costly. In addition to this, an example of a waterproof connector using a waterproof material or a rubber cap is shown in Patent Document 1 and Patent Document 2, but has a simpler configuration than that of FIG. Therefore, there is a demand for a connector with a simpler configuration that can be used in the future.
JP2002-216890 JP-A-7-94237

  As can be seen from the above description, the problem of the present invention is that it is convenient for use in an environment where waterproofing is not essential, and has a simple structure in which the cover can be attached and detached with a single touch, and is a low-cost insulating cover with an insulating cover. To provide a connector.

  The electric wire connector with an insulating cover according to the present invention has a connection aid for connecting the electric wires to each other with a protrusion, and an insulating cover having a recess corresponding to the protrusion. By simply attaching to the projection, the protrusion of the connection aid and the recess of the insulating cover come into contact with each other so that the insulating cover does not shift in the direction in which the electric wire is stretched. This will be described below.

The invention according to claim 1 is an electric wire connector with an insulating cover, which has a protrusion and a connection aid for connecting the wires to each other, and a fixing that can be attached to the connection aid and that fixes the electric wire. And an insulating cover having a recess that fits and fits with the protrusion, and when the connection aid is mounted in the insulation cover after the wire is connected, the protrusion of the connection aid and the The concave portion of the insulating cover is fitted so that the insulating cover does not shift in the extending direction of the electric wire. Thereby, the insulation cover which does not slip | deviate with a simple structure can be obtained.

According to a second aspect of the present invention, in the electric wire connector with an insulating cover according to the first aspect, the protrusion of the connection aid extends in parallel with the surface of the connection aid to which the fixture is attached. The protrusion protrudes in a right angle direction and on the side opposite to the protruding direction of the fixture. This protrusion prevents the insulation cover from being displaced.

According to a third aspect of the present invention, in the electric wire connector with an insulating cover according to the first or second aspect, in order to fasten the terminal portion of the electric wire, the fixture is a fastening means using a male screw and a female screw, It is a caulking means by a tube having a section or a hole for inserting, pressing and connecting a metal tip. Thereby, an electric wire can be fixed and connected to a fixture.

According to a fourth aspect of the present invention, in the electric wire connector with an insulating cover according to any one of the first to third aspects, the connection aid has a plurality of fixtures for fixing the electric wire. It is characterized by. Thereby, one or more sets of many electric wires can be connected.

According to a fifth aspect of the present invention, in the electric wire connector with an insulating cover according to any one of the first to fourth aspects, the insulating cover has a rectangular or cylindrical shape. Thereby, it is possible to obtain a change in shape.

According to a sixth aspect of the present invention, in the wire connector with an insulating cover according to any one of the first to fifth aspects, the insulating cover is mounted when the connection aid is attached and closed in the insulating cover. The insulating cover closing protrusion for keeping the closed state and the concave portion are provided, or a locking means by adhesion or suction is provided on a surface that fits when the upper cover and the lower cover of the insulating cover are closed. To do. As a result, the cover can be locked for opening and closing.

According to a seventh aspect of the present invention, in the electric wire connector with an insulating cover according to any one of the first to sixth aspects, the protrusion is provided in an annular shape or in a plurality of directions around the connection aid. It is characterized by that. As a result, the insulating cover can be held without being displaced.

According to an eighth aspect of the present invention, in the electric wire connector with an insulating cover according to any one of the first to seventh aspects, the insulating cover corresponds to a recess for fitting into the protrusion of the connection aid. And the connection aid is wound with an overlapping portion. Thus, the insulation cover can be prevented from being displaced, and the metal part of the electric wire can be completely covered to prevent electric shock.

According to a ninth aspect of the present invention, in the electric wire connector with an insulating cover according to the eighth aspect, as a means for obtaining the wrapping of the insulating cover, the one constituting the insulating cover is a resin having an elastic restoring force or a temperature change. It is a shape memory resin or shape memory alloy to be restored. Thereby, complete entrainment of the insulating cover is completed, and electric shock can be prevented.

The invention according to claim 10 is the electric wire connector with an insulation cover according to any one of claims 1 to 9, wherein at least one of the connection aid or the insulation cover is a connection portion of the electric wire. It is characterized by having a resin including a temperature-sensitive color changing body that changes color by sensing a temperature rise due to abnormal heat generation. Thereby, abnormal heat generation due to a defect in the electric wire connection portion can be detected.

Since it is configured as described above, the electric wire connector with an insulating cover according to the present invention covers the metal part of the electric wire effectively by preventing the displacement of the insulating cover in the extending direction of the electric wire with a simple configuration. Therefore, the prevention of electric shock can be ensured, and convenience in use and cost reduction can be achieved.

An electric wire connector with an insulating cover according to the present invention, which is proposed as the best mode for carrying out the invention, has a protrusion and a connection aid for connecting the electric wires, and a recess corresponding to the protrusion. By simply attaching the insulation cover after connecting the wire, the protrusion of the connection aid and the recess of the insulation cover are in contact with each other so that the insulation cover does not shift in the direction of the wire extension. The feature is that the exposure of the electric wire is prevented and the role of the cover is realized. This will be described below.

FIG. 1 is a perspective view for explaining one embodiment of an electric wire connector with an insulating cover according to the present invention. In this example, the connection medium 101 is made of synthetic resin, and can be provided with a wire fixing tool 103 on a flat bottom surface, and has protrusions 102 on both sides. The electric wire fixing device 103 is, for example, a male screw as shown in the figure. In this case, the electric wire fixing device 103 is embedded in the bottom surface of the connection aid 101 or protrudes from the back side of the bottom surface so as not to come out from the bottom surface. . Reference numerals 104 and 106 denote electric wires to be connected, and each has connection terminals 105 and 107 having circular holes. By connecting the connection terminals 105 and 107 into the male screw portion of the fixture 103 and fastening the female screw 108 for the fixture, a state where the two electric wires are connected and fixed to the fixture can be obtained. Reference numeral 110 denotes an entire insulating cover formed of an insulator. The lower cover 111 has a recess 112 for preventing displacement of the connection aid 101, and the shape of the recess 112 is such that the protrusion 102 of the connection aid 101 fits. Therefore, after the connection aid 101 in a state where the electric wire is connected is arranged so that the protrusion 102 fits into the concave portion 112, the upper cover 113 is put on and the locking means (not shown, described later) is prevented. ), The protrusion 102 does not come off, so that it is possible to prevent the cover from slipping in the extending direction of the electric wire, and to effectively cover the exposed metal portion of the electric wire. In other words, although the structure is simple, the positions of the fixing portion and the cover of the electric wire are determined when the cover is put on, so that the purpose of the connection and the cover is achieved by a simple thing.

FIG. 2 is a perspective view for explaining another embodiment of the electric wire connector with an insulating cover according to the present invention. A protrusion 202 (one or more) is attached to the lower side of the bottom surface of the connection aid 201. The recess 212 into which the projection 202 is fitted is attached to the bottom surface of the lower cover 211 of the entire insulator cover 210 as shown in the figure, and the projection 202 is hooked here so that the cover extends in the direction in which the electric wire extends. It prevents slippery slipping. Other operations are the same as those in FIG.

FIG. 3 is a perspective view for explaining another embodiment of the electric wire connector with an insulating cover according to the present invention. The electric wire connection aid 301 is made of a metal piece. In this case, the connection aid 301 has a notch, and a protrusion 302 extending downward in the drawing is attached by bending the notch downward. In addition, there is a notch, and a wire fixing tool 303 is attached by a section bent upward. Wiring can be fixed and connected by inserting and caulking exposed metal wires of the wires 304 and 306 inside the fixture 303. The recess 312 into which the protrusion 302 is fitted is attached to the bottom surface of the lower cover 311 of the entire insulator cover 310 as shown in the figure, and the cover 302 is attached to the extension direction of the electric wire when the protrusion 302 is caught here. It prevents slippery slipping. Other operations are the same as those in FIG.

FIG. 4 is a perspective view for explaining another embodiment of the electric wire connector with an insulating cover according to the present invention. The connection aid body 101 and the fixture 103 in FIG. 1 show two sets of fixtures 403 so that two sets of four wires can be connected. Other operations are the same as those described in FIG. In this way, a large number of wires can be connected.

FIG. 5 is a perspective view for explaining another embodiment of the electric wire connector with an insulating cover according to the present invention. Here, the entire insulating cover 110 in FIG. 1 is formed into a cylindrical shape. The rest is the same. The shape can be created regardless of these.

FIG. 6 is a diagram for explaining an example of a cover locking means of the electric wire connector with an insulating cover according to the present invention. 6A shows a cross section of the entire cover 110 in FIG. 1, but the lower cover 111 (611 in FIG. 6) and the upper cover 113 (613 in FIG. 6) are connected by a flexible coupling portion 614. As shown, the upper cover 613 and the lower cover 611 can be changed from an open state 6-A to a closed state 6-B. The upper cover 613 and the lower cover 611 are provided with a cover closing projection and a recess 615 for keeping the closed state by being fitted to each other. In 6-C, the cover closing projection and the concave portion like 615 are not provided, but the adhesive material, the magic tape (registered trademark), and the surface that fit when the upper cover 613 and the lower cover 611 are closed, Locking means 616 by adhesion or suction such as a rubber magnet or a micro-adsorption tape is attached. A micro-adsorption tape is an infinite number of fine holes laid on the tape, and when pressed against a flat surface, the air in the fine holes escapes into a vacuum, and the countless vacuum suction force It is adsorbed by combination.

FIG. 7 is a diagram for explaining another embodiment of the electric wire connector with an insulating cover according to the present invention.
In 7-A, the connection aid 701 has, for example, a shape in which a flat surface is wound in a cylindrical shape, and an electric wire can be inserted into a hole in the tube. Any shape such as a cylinder or a polygonal cylinder may be used as long as the electric wire can be inserted. That is, in this case, the hole 703 plays the role of the fixture 103 for connecting the electric wires. The connection aid 701 is provided with a protrusion 702 corresponding to the protrusion 102 for fitting into the recess for preventing the cover from being displaced. In this case, the connection medium 701 is made of metal. By inserting and caulking the bare metal wires of the electric wires 704 and 706 into the hole 703, the wiring can be fixed and connected. A connection completed in this way is shown in 7-B. Reference numeral 709 denotes a caulking portion. 7-C shows the whole insulator cover 710, and the center portion swells into a shape corresponding to the recess so as to fit into the annular protrusion 702 (the inside is a recess). ing. In this example, the cover is configured to be wound with an overlapping portion as shown in the figure, so that it can be wound around the connecting portion later and can be used easily. Of course, not involving. It may be a closed cylinder. In the case of the entrainment type, the elastic restoring force of the resin may be used, or a shape memory resin or a shape memory alloy may be used. 7-D shows a state in which the insulating cover is provided after the connection of the electric wires, but the cover can be prevented from slipping in the extending direction of the electric wires in a state where it is wound as shown in the figure. Although the protrusion 702 is shown in an annular shape, it is a matter of course that the protrusion 702 may protrude in a plurality of directions because the cover is not displaced.

In all of the above examples, it is also possible to use a temperature-sensitive color changing body for at least one of the connection aid and the insulating cover. This has the advantage of adding a function that allows the connector to monitor abnormal heat generation at the connecting portion. In particular, if the insulator cover shown in 7-C of FIG. 7 is made of a resin containing a temperature-sensitive color change body, the heat generation monitoring function can be realized together with the insulation function. As the temperature-sensitive color-changing body, those introduced in detail in Patent Document 3 and the like filed by the same inventor can be used.
Japanese Patent Application No. 2004-126407

In all of the above examples, as the synthetic resin used in the above description, any type of insulating resin such as vinyl chloride resin, polyethylene resin, polypropylene resin, silicon resin, and phenol resin can be used. . Moreover, although the extension direction of the electric wire of the insulating cover provided the open figure, it is natural that only the hole through which the electric wire passes can be opened, and the other can take a closed shape. In the explanatory diagram, the electric wire is also described for the sake of explanation, but the electric wire is not included in the configuration of the insulated connector. Although the electric wire usually extends long, only the vicinity of the tip is shown because of the described space. In addition, although there is an example in which the upper cover and the lower cover are connected by the coupling portion, they may be separated from each other. In that case, it is desirable that the locking means for opening and closing be on both sides.

As explained above, the fitting structure of the connection aid for connecting the wire and the recess of the insulating cover makes it easy to prevent the cover from being displaced in the direction of extension of the wire. Since the metal part of the electric wire can be covered and the convenience in use and cost reduction can be achieved, it is extremely convenient for industrial use.

It is a perspective view explaining one embodiment of an electric wire connector with an insulating cover by the present invention. It is a perspective view explaining the other embodiment of the electric wire connector with an insulation cover by this invention. It is a perspective view explaining the other embodiment of the electric wire connector with an insulation cover by this invention. It is a perspective view explaining the other embodiment of the electric wire connector with an insulation cover by this invention. It is a perspective view explaining the other embodiment of the electric wire connector with an insulation cover by this invention. It is a figure explaining the example of the latching means of the cover of the electric wire connector with an insulation cover by this invention. It is a figure explaining the other embodiment of the electric wire connector with an insulation cover by this invention. It is a figure which shows the conventional waterproof connector.

Explanation of symbols

101, 201, 301, 701 Connection medium 102, 202, 302, 702 Protrusion 103, 303, 403 Fixing tool 104, 106, 304, 306, 704, 706 Electric wire 105, 107 Connection terminal 108 Female screw 110, 310 for fixing tool , 710 Insulating cover 111, 211, 311, 611 Lower cover 112, 212, 312 Recess 113, 613 Upper cover 614 Coupling part 615 Cover closing protrusion and recess 616 Locking means 703 hole 709 caulking part 712 by adhesion or suction Swelling portion 801 Electric wire 802 from the left side Electric wire 803 from the right side 803 Screw 804 Cap 805, 806 Male screw portion 807, 808 Female screw portion

Claims (10)

An insulating cover having a connection aid for connecting the wires to each other, a fixing tool that can be attached to the connection aid and for fixing the wire, and a recess that fits in the projection. And when the connection aid is mounted in the insulating cover after the electric wire is connected, the protrusion of the connection aid and the concave portion of the insulating cover are fitted so that the insulating cover is connected to the electric wire. A wire connector with an insulating cover, characterized by not being displaced in the stretching direction. The protrusion of the connection aid protrudes in parallel to the surface of the connection aid to which the fixing tool is attached, or protrudes in a direction perpendicular to the protruding direction of the fixing tool. The electric wire connector with an insulating cover according to claim 1. The fastener is a fastening means using male and female screws to fasten the terminal portion of the electric wire, or a caulking means using a tube having a section or a hole for inserting, pressing and connecting the metal tip of the electric wire. The electric wire connector with an insulating cover according to claim 1, wherein the electric wire connector has an insulating cover. The wire connector with an insulating cover according to any one of claims 1 to 3, wherein the connection aid has a plurality of fixtures for fixing the electric wire. The electric wire connector with an insulating cover according to any one of claims 1 to 4, wherein the insulating cover has a square shape or a cylindrical shape. The insulating cover has the insulating cover closing protrusion and a recess for maintaining a closed state when the connection aid is attached and closed in the insulating cover, or the upper cover and the lower cover of the insulating cover are The wire connector with an insulating cover according to any one of claims 1 to 5, further comprising locking means by adhesion or suction on a surface that fits when closed. The wire connector with an insulating cover according to any one of claims 1 to 6, wherein the protrusion is provided around the connection aid in an annular shape or in a plurality of directions. The said insulating cover has a site | part corresponding to the recessed part for fitting to the said processus | protrusion of the said connection aid, and winds the said connection aid with an overlap part. An electric wire connector with an insulating cover according to any one of the above. 9. The means for obtaining the entrainment of the insulating cover includes a resin having an elastic restoring force, a shape memory resin or a shape memory alloy that is restored by a temperature change. Wire connector with insulation cover. The at least one of the connection aid or the insulating cover includes a resin including a temperature-sensitive color changing body that changes color by detecting a temperature increase due to abnormal heat generation at the connection portion of the electric wire. Item 10. The electric wire connector with an insulating cover according to any one of Items 9.

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