JPH1021985A - Electric wire connecting tool and insulating material therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric wire connecting tool which can prevent short circuiting incidents between contact and electric shock accidents and has no probability of firing and happening of risky incidents even in a case the tool is left for a long duration as being inserted into an electric outlet in the electric power side by insulating the surrounding of the root parts of contact projected out of an appliance main body. SOLUTION: In a connecting tool of which a plurality of contact 3a, 3b are projected out of the front face 4 of the tool main body 1 to carry out electric connection, the root parts of the contact 3a, 3b projected out of the tool main body 1 are coated with a viscous insulating material 5. The insulating material 5 may be installed in a wide region surrounding both contact 3a, 3b or may be installed in only the surroundings of the respective contactors 3a, 3b. Moreover, as another insulating method, insulating cylindrical bodies 7a, 7b which surround the circumferential parts of the root parts of the contact 3a, 3b projected out of the tool main body 1 may be so installed as to be projected out of the front face 4 of the tool main body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire connecting device for inserting a conductive contact into a receptacle of a receptacle (receptacle) for electrical connection and an insulating material thereof.

[0002]

2. Description of the Related Art Normally, power is supplied to a control unit of an electric, electronic device or an electromechanical device from a wall outlet or the like via a plug. This connection plug has a structure in which a plurality of contacts (pins or blades) connected to an electric wire from the device body are housed in an insulating case, and some of the contacts protrude from the front of the case. ing.
Then, by inserting or screwing the protruding contact into the receptacle of the outlet, drive power is supplied to the apparatus side via the connection plug.

[0003]

In the above-described conventional connection plug, the plug is often left attached to the outlet for a long period of time. Water and dirt accumulate in a slight gap between the outlets, which may cause a short circuit between the contacts, resulting in a risk of fire or the like. In particular, a fire or the like may occur in a relatively short period of time in an environment with a lot of moisture and dust and poor conditions.

[0004] In addition, since the plug is not fully inserted into the outlet, the contact may be exposed and a finger of an infant or the like may touch and cause an electric shock.

The present invention has been made in view of the above-mentioned problems, and frequently disconnects and connects a connection plug to an outlet even when the device is left attached to the outlet on the power source for a long period of time. It is an object of the present invention to provide a safe electric wire connecting device which can prevent a short circuit accident between contacts and an electric shock accident even in a case where there is no fear of fire or danger.

[0006]

The electric wire connecting device and the insulating material according to the present invention are constituted as follows.

(1) A connecting device in which a plurality of contacts for making an electrical connection protrude from the front surface of the device main body.
An electric wire connection device, wherein the periphery of a root portion of the contact protruding from the device main body is covered with an adhesive insulating material.

(2) In a connecting device in which a plurality of contacts for making an electrical connection protrude from the front surface of the device main body,
An electric wire connection device, wherein an insulative tubular body covering a periphery of a root portion of the contact protruding from the device main body is provided so as to protrude from a front surface of the device main body.

(3) In a connecting device in which a plurality of contacts for making electrical connection are projected from the front surface of the device main body,
An electric wire connection device, wherein a flat adhesive insulator having a through hole for the contact is provided so as to contact the front surface of the device main body.

(4) In a connecting device in which a plurality of contacts for making an electrical connection protrude from the front surface of the device main body,
An electric wire connection device, wherein a frame-shaped elastic or plastic insulating material surrounding the plurality of contacts can be brought into contact with a front surface of the device main body.

(5) Insulation characterized in that it has a frame shape made of an elastic or plastic non-conductive insulating material and can be interposed between an outlet for electrical connection and various insertion plugs. Wood.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a view showing a configuration of a wire connecting device according to a first embodiment of the present invention. This shows an example in which the connector is configured as a connection plug to be inserted into an outlet, in which (a) is a front view and (b) is a side view.

In FIG. 1, reference numeral 1 denotes an appliance body which is an insulator case. Inside the appliance body 1, two conductor contacts 3a connected to electric wires in a cable 2 from a main unit (not shown) are provided. , 3b are stored. A part of the contacts 3a and 3b for making this electrical connection is
Projecting from the front surface 4.

The periphery of the two contacts 3a and 3b, which protrude from the instrument body 1 and close to the front surface 4 of the instrument body 1, is covered with an adhesive insulating material 5. The insulating material 5 is provided so as to be peelable. Also,
The insulating material 5 may be provided in a wide area surrounding the contacts 3a and 3b as shown in the figure, or may be provided only around the contacts 3a and 3b.

The connecting device having the above-described configuration is supplied with power by being inserted into an outlet (not shown), like the contact plug described above, and can supply driving power to the main unit.

Here, the connecting device of the present embodiment may be left in a state of being plugged into an outlet for a long period of time of several years. Even in such a case, the connecting device is provided with each contact 3a. , 3b, that is, the insulator 5 is provided in a portion corresponding to a gap between the appliance main body 1 and an outlet (not shown), so that water or dirt accumulates (adheres) and shorts the contacts 3a and 3b. There is no such thing as a state. Therefore, there is no danger of fire or the like, and safety is achieved.

FIG. 2 is a diagram showing the configuration of a second embodiment of the present invention, wherein the same reference numerals as in FIG. 1 denote the same components,
(A) is a front view and (b) is a side view.

In this embodiment, a ground terminal 6 is provided in addition to the two contacts 3a and 3b. Insulating tubes provided so as to protrude from the front surface 4 of the appliance body 1 around the roots of the two contacts 3a and 3b, that is, around the portion corresponding to the gap between the appliance body 1 and an outlet (not shown). It is covered by the bodies 7a and 7b. The insulating cylinders 7a and 7b may be integrated with or separate from the insulating instrument body 1, and the two cylinders 7a and 7b may be formed integrally.

In the connecting device thus constructed, the contacts 3a, 3b projecting from the front surface 4 of the device body 1.
Since the insulating cylinders 7a and 7b are provided around the root portion of water, water and dirt accumulate (attach) between them.
The contacts 3a and 3b do not short-circuit.

Therefore, even if the power supply is left in the state of being plugged into the outlet for a long time as in the above-described embodiment, a short circuit between the contacts 3a and 3b and between the contacts 3a and 3b and the ground terminal 6 is prevented. It is safe and has no risk of fire.

FIGS. 3 to 5 are structural views showing a third embodiment of the present invention, wherein (a) is a front view and (b), respectively.
Is a side view.

In this embodiment, the contact holes 8a, 8b, 9a, and 9b are provided so as to be in contact with the front surface of the instrument body (not shown).
FIG. 3 shows a circular plate, FIG. 4 shows an octagonal plate, and FIG. 5 shows a plate-shaped adhesive insulator 8, 9, 10 having 9b, 10a, 10b. Are rectangular.

As described above, the same operation and effect as those of the above-described embodiments can be obtained also by providing a sticky insulator formed in a plate shape of several types according to the type of the plug.

FIGS. 6A and 6B show still another embodiment of the present invention, and show an insulating material interposed between a plurality of contacts and a tool body, FIG. 6A is a front view thereof, and FIG. Is a side view.

An adhesive is applied to one or both sides of an insulating substrate 11 made of a non-conductive resin such as a rubber ring, sponge, fiber, or the like which can surround the contact.
2 was formed as an insulating material A by covering the same.

That is, the insulators 8, 9, and 10 shown in FIGS. 3, 4, and 5 of the above-described embodiment are formed by deforming the insulators, and those which can change shapes such as elasticity or plasticity are preferable.

As shown in FIGS. 7 (a) and 7 (b), the insulating material A is a conductor contact 3 on the front surface 4 of the instrument body 1.
The release paper 12 is peeled off so as to surround a and 3b, and the pressure-sensitive adhesive applied surface is pressed against the front surface 4 to be fixed for use.

FIG. 8 shows a case where the insulator A is attached along the outer periphery of the insertion hole 14 of the outlet 13 to which the appliance body 1 is connected as shown in FIG.

When the instrument body 1 is inserted into the insertion hole 14, the outer circumferences of the contacts 3a and 3b are held by the insulating material A. The gap to be inserted is completely closed to ensure safety.

Since the insulating material A has an adhesive surface on one or both surfaces of the insulating substrate 11, if it is used for an electrical appliance that is frequently pulled out and inserted or if it is used for an outlet, the contacting / separating portions are stained with an adhesive. It has an advantage that it is not sticky, but in the case of electric appliances such as electric refrigerators or televisions, the state of being inserted for a long time continues, so the insulating material A composed of an adhesive on both sides is used. Better (not shown).

The insulating material A may be marketed by itself, but may be previously bonded and fixed to the appliance main body 1 or the outlet 13 when the electric appliance is sold. In this case, an adhesive may be applied to the open surface of the insulating material A, but the insulating substrate 1 may be applied without applying the adhesive as it is.
1 may be exposed (not shown).

Further, as shown in FIG.
May be formed with another shape of the insulating agent B, or may have the same shape as the insulators 8, 9, and 10 shown in FIG. 3, FIG. 4, and FIG. Accordingly, the overall shape of the insulating materials A and B can be freely changed depending on the shape of the insertion plug and the outlet, such as the size of the size and the type of the large and small frame shape of the thickness. In short, the contacts are completely surrounded from outside. The shape is not specified if it can be formed.

Further, the present invention relates to an outlet having a connection plug connectable to the outlet and an extension cord,
The present invention can be applied to a special outlet having a multi-connection terminal that can be directly inserted into and fixed to an outlet, or to any electrical connection portion formed between these outlets and a connection plug that can be removed and inserted.

In each of the embodiments described above, the case of the plug-in type connection device has been described. However, the same configuration can be applied to the case of the screw-in type connection device. It goes without saying that the present invention can be applied not only to a single-phase device having two contacts but also to a three-phase device having three contacts.

[0035]

As described above, according to the present invention, a short circuit between contacts can be prevented even when the power supply is left attached to the power outlet for a long period of time, and there is a risk of fire or the like. There is no effect and it is safe.

Further, even if frequent insertion / removal of the insertion plug or the like is performed, exposure of the contact is prevented by the insulating material, so that danger such as electric shock can be prevented.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a second embodiment of the present invention.

FIG. 3 is a configuration diagram showing a third embodiment of the present invention.

FIG. 4 is a configuration diagram showing a third embodiment of the present invention.

FIG. 5 is a configuration diagram showing a third embodiment of the present invention.

FIG. 6 is a configuration diagram showing another embodiment of the present invention.

FIG. 7 is a configuration diagram of a use state of FIG. 6;

FIG. 8 is a configuration diagram of a use state of FIG. 6;

FIG. 9 is a configuration diagram showing another example of the insulating material of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Cable 3a Contact 3b Contact 4 Front 5 Insulator 7a Cylindrical 7b Cylindrical 8 Insulator 9 Insulator 10 Insulator 12 Release paper 13 Outlet 14 Insertion hole A, B Insulation material

Claims (5)

[Claims] 1. A connecting device in which a plurality of contacts for making an electrical connection protrude from a front surface of a device main body, wherein a periphery of a root portion of the contact protruding from the device main body is covered with an adhesive insulating material. An electric wire connection device, characterized in that: 2. A connecting device in which a plurality of contacts for making an electrical connection protrude from a front surface of a device main body, wherein an insulative cylindrical body covering the periphery of a root portion of the contact protruding from the device main body is provided. An electric wire connection device provided so as to protrude from a front surface of a device main body. 3. A connecting device in which a plurality of contacts for making an electrical connection protrude from a front surface of a device main body, wherein a flat plate having a through hole of the contact so as to contact the front surface of the device main body. An electric wire connecting device provided with a sticky adhesive insulator. 4. A connecting device in which a plurality of contacts for making an electrical connection protrude from a front surface of a device main body, wherein a frame-like elastic or plastic material surrounding the plurality of contacts is provided on the front surface of the device main body. An electric wire connection device characterized by being capable of contacting an insulating material. 5. An insulating material having a frame shape made of an elastic or plastic non-conductive insulating material, which can be interposed between an outlet for electrical connection and various insertion plugs. .