JP3297681B2 - "Outlet" - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The outlet of the present invention, when it is necessary to receive or supply electricity such as weak electricity and strong electricity, the plus and minus wires of the electrodes are covered with each other to form a single wire. A pair of receiving terminals are provided inside a receiving terminal outlet formed by arranging a single wire, and the receiving terminal outlet has a plug-in side outlet terminal pair to which a cord is connected. It is an outlet that is plugged in and connected or required when receiving or supplying electricity.However, depending on each application, a terminal outlet is provided with a plurality of receiving sides, and a plurality of receiving sides are provided while a plurality of receiving sides are provided. There is also a single outlet provided, each of the outlets mentioned above can be plugged in and connected, and the operation of electrical products and the need for electricity A outlet plug side to make the case to perform the energization.

[0002]

2. Description of the Related Art Outlets themselves include an outlet having a pair of plug-in terminals, a receiving outlet having a pair of terminals inside the receiving side, and an outlet having only a plurality of receiving sides. . In addition, there are outlets provided with a plurality of outlet receiving sides and a pair of insertion terminals in a direction opposite to the outlet receiving side, and there are outlets commonly called triple taps and triangular taps (hereinafter referred to as taps). It is not designed for an automatic release structure.

[0003] The outlet is used in a pair of outlets with a plug-in terminal provided at the end of a lead wire (hereinafter referred to as a cord) associated with electrical appliances and equipment. When the cable length is insufficient, an extension cord (hereinafter referred to as a trunk line) is used, and the trunk line is used with a pair of receiving outlets on one side and a plug-in outlet on the other side.

[0004] Further, in a state where the insertion terminals are connected to the taps, which are receptacles on the receiving side, respectively, the receiving side is used by connecting to a terminal outlet formed only in one place. In the state of the tap to which the terminal is connected, the receiving side may be connected to each of the plurality of terminal outlets formed. It is used as "foot wiring".

[0005] For the outlet and the method of use described above,
In the case of new construction, etc., there is a margin with the prescribed wire diameter, but since the wiring itself is the minimum wire diameter covered, the outlet itself is not used properly. There were various problems.

[0006] Further, when a terminal outlet provided with a plurality of receiving outlets as described above is used by being connected to a plurality of taps, the terminal is also called "octopus foot wiring". Although it is usually done, it is common practice that the coated single wire is supposed to use the same number of insertion terminals as the number of receiving sides of the plurality of terminators. ing.

[0007] However, in practice, octopus wiring is frequently used, and the electric supply side or the manufacturer of electric products has been instructed to perform an appropriate connection method because of the undesirable wiring. is the current situation. Also,
Even though the single line covered up to the terminal is not wired to the line capacity that assumed the current to be supplied too much considering the octopus wiring, the relay line etc. also have the normal current capacity Buy with a wire, connect to each outlet,
As described above, the usage status of the outlet wired with the octopus foot was used.

[0008]

Therefore, an overcurrent is caused by the above-mentioned outlet structure or an improper outlet insertion method, for example, because current is concentrated in one place. In the case of a single plug-in connection between the outlet on the plug-in side and the outlet on the receiving side, if the wiring connection is poor and the terminal is defective, or if the plug-in is connected for a long period of time, dust or dirt may be present on both terminals of the connection outlet. In addition to the breaker operating due to overcurrent due to accumulation of dust, etc., the current concentrates on one wiring path, causing the wiring to generate heat even within the breaker capacity range, causing a fire when it is severe and severe There were many things to do.

Therefore, an object of the present invention is to occur when there is an improper plug-in state of the outlet as described above.
When abnormal heat generation occurs in an outlet due to overcurrent or concentration of current, the problem is that the outlet on the plug-in side has a functional structure that can be automatically detached from the outlet on the receiving side.

[0010]

As described above, since the power is supplied by connecting the outlet on the insertion side and the outlet on the receiving side, an overcurrent has occurred due to the above-described causes and other problems. In such a case, it is necessary to maintain a function of automatically disconnecting the outlet on the insertion side from the outlet on the receiving side, and to have a functional structure for interrupting the current. It is also possible to provide the functional structure of the present invention in the outlet on the receiving side, but in order to reduce costs, the outlet on the plug-in side is required, and the functional structure that can be shut off is used.

An ordinary outlet on the plug side has a pair of terminals, which are plug portions, provided on the outlet main body side and formed so as to be sandwiched between the lid side. At this time, the internal structure of the main body side is such that a pair of terminals are fixed to the left and right, and the two wires covered with one wire are bare from an arbitrary position from the outlet entrance, and the bare wire is Each is screwed to the terminal in a state of being wound clockwise around the screw hole of the terminal.

Therefore, according to the structure of the present invention, the inside of the outlet, which is sandwiched and integrated as described above, is provided with a pair of insertion terminals on the left and right, and is located between the left and right terminals and the center of the outlet itself. In the places located in the part, a hollow part with an arbitrary interval, width and depth is provided for the purpose of preventing contact of terminals and wiring, etc. and for the purpose of providing a shape memory alloy and a mandrel, and the lower part of the hollow part has a dead end It is provided to a state where it has been left in the outlet part, which is the center part of the outlet on the side where the terminal protrudes, by the arbitrary thickness of the outlet part, and the protrusion of the mandrel is hooked on the inside side of the outlet part of any thickness, It is formed to project by a certain length.

In this case, a space is provided at an arbitrary position in the center of the cavity formed on the plug-in side of the plug-in side and the cover side of the plug-in side of the plug-in side, and near where the left and right terminals are screwed. In this case, the heat trapped in the left and right terminal portions easily flows from the space to the inside of the cavity, and the shape memory alloy is formed in a state where the temperature can be easily detected.

In the cavity provided as described above, a spiral shape memory alloy is provided, and further, a mandrel holding an arbitrary length, shape and projection is provided inside the shape memory alloy, The shape memory alloy uses the generated force generated by the degree of temperature detection, and the mechanism of the mandrel by the generated force is pushed out to the outlet side by an arbitrary distance, and in this state of the mechanism, the lid side is the body side Covered with
The main body side and the lid side are fixed by screws through predetermined screw holes and used.

[0015] From the functional structure provided above, the entire outlet is larger than a normal outlet, and the space between the pair of terminals and the terminal insertion portion is also wider. However, the terminal insertion portion is usually formed from the portion where the insertion terminal protrudes from the outlet. In order to make the interval equal to the terminal width of the terminal, the shape is bent inward.

[0016]

[Function] In the above-mentioned plug-in outlet function structure, the receiving-side plug terminal is improperly connected, or the plug-in side plug terminal is improperly connected, or dust or dirt accumulates on one or each of the above-mentioned plug sockets. If the outlet terminal generates heat due to contact, or if the outlet terminal generates heat due to the concentration of current at the terminal due to octopus wiring, etc., install it in the cavity through the space from the outlet terminal side of the insertion side This is the mechanism by which heat is transmitted to the formed shape memory alloy.

In this mechanism, the shape memory alloy generates a force at the same time as the heat is detected, and the force generated by the shape memory alloy gradually increases as the terminal heat increases. Are pushed out by the generated force, and the pushed-out end portion of the mandrel pushes the receiving-side outlet surface, so that the plug-in-side outlet terminal comes out of the receiving-side outlet terminal.

As the terminal heat further increases, when the deformation temperature stored in the shape memory alloy is reached, the outlet terminal on the insertion side is disconnected from the outlet terminal on the receiving side,
Since the weight of the wiring itself connected to the plug-in side outlet is added, the wire drops off from the outlet side of the receiving side and completely blocks the flow of current.

Also, as described above, there is a problem not only in the outlet on the plug-in side and there is a problem, but even if there is a problem in the outlet on the receiving side, heat is generated. Since the heat is transmitted to the outlet, the functional structure of the outlet on the plug-in side works.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front internal view of an outlet main body on the plug side, FIG. 2 is a front internal view of a lid side of the plug main body on the plug side, and FIG. It is the combined three-dimensional perspective view.

From the above-mentioned figure, two bare wires of an arbitrary length are formed from the wire entrance 1 through which one coated wire is wired, and the bare wires serve as the insulating walls 3 of the cavity 9 '. And the outside of the wall 12 and the outside of the wall 3 'and the wall 12' of the cavity 9 'are passed through, respectively, and the bare wires are rounded in the screw holes 7 and 7' provided in the terminal 6 and the terminal 6 ', and the screws are used. It is fixed.

The hollow portion 9 'is provided with a spiral shape memory alloy 2 and a mandrel 9 on the inner side of the shape memory alloy 2, and any intermediate position of the mandrel 9 is formed in a convex shape. Then, the heat generated by the terminals 6 and 6 'enhances the generation force of the shape memory alloy 2, and when the mandrel 9 is pushed outward due to the generated force, the entire length of the mandrel 9 jumps out due to the convex shape. Instead, it is a mechanism that protrudes by an arbitrary length.

Further, spaces 5, 5 ′, 14, and 14 ′ having an arbitrary concave shape are provided in the hatched portion on the wall side of the outlet main body on the plug side and the hollow portion 9 ′ on the outlet lid side. When the terminals 6 and 6 'generate heat, heat flows into the hollow portion 9' through the space, and in this state, the front view 1 of the plug-in-side outlet body and the outlet-side body of the outlet body Lid side figure 2 is combined,
The screw hole 4 and the screw hole 13 ', the screw hole 4' and the screw hole 13, the screw hole 8 and the screw hole 15 ', and the screw hole 8' and the screw hole 15 are fixed by fixing screws.

When the terminals 6 and 6 'generate heat in the state shown in FIG. 1 of the fixed plug-side outlet body and FIG. 2 of the plug-side plug cover, the hollow portion 9' comes from the space portion 4 '.
When the shape memory alloy 2 detects the heat flowing through the shape memory alloy 2, the shape memory alloy 2 retains the generated force that tends to expand, and the generated force acts to push out the mandrel 9, and the extruded mandrel 9 Since the mandrel tip 11 contacts the surface of the receiving outlet, the plug-in outlet comes out of the receiving outlet.

[0025]

According to the present invention, if any one of the terminals inside the outlet on the insertion side and the terminal inside the outlet on the receiving side rises in temperature for some reason, the shape memory alloy detects the temperature. When the mandrel activated by detection extends a certain distance at an arbitrary temperature, it hits the surface of the receiving outlet and the corresponding reaction force causes the pair of outlet terminals on the receiving side to slip out of the receiving outlet terminal little by little. Since a gap can be visually observed at the contact portion between the outlet side of the plug-in side and the outlet side of the receiving side, it is possible to report that an abnormality has occurred in the outlet.

In addition, as the terminal temperature rises, the contact surface of the outlet further increases the interval,
When the temperature reaches an arbitrary temperature stored in the shape memory alloy, the outlet terminal on the plug-in side is disconnected from the outlet terminal on the receiving side, automatically shutting off electricity, and finally connected to the outlet on the plug-in side. The load on the connecting wire is also helped, and the outlet on the plug-in side falls off from the outlet on the receiving side, so that a complete and completely safe connection can be obtained.

Since the flow of electricity is completely shut off as described above, an abnormality occurs in the flow of electricity due to an earthquake or the like, an abnormal current occurs due to an octopus foot wiring, or the above-mentioned cause. Therefore, even if both outlets have a problem, there is an effect that a fire or the like can be prevented beforehand.

[Brief description of the drawings]

FIG. 1

FIG. 3 is a front view of the outlet main body on the insertion side, separated from the joint of A and A ′.

FIG. 2

FIG. 3 is a front view of the lid side of the plug-in main body separated from the seam of A and A ′.

FIG. 3 is a three-dimensional perspective view of the plug-in outlet in which a plug-side outlet main body and a plug of the plug-side outlet main body are fitted and stopped.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 1 'Wiring entrance 9' Cavity part 2 Shape memory alloy 10 Mandrel movement position 3 3 'Wall 11 Terminal tip part 4 4' Alignment stop hole 12 12 'Wall 5 5' Space part 13 13 'Alignment stop hole 6 6' Terminal 14 14 'space 7 7' screw hole 15 15 'alignment stop hole 8 8' alignment stop hole 9 mandrel

Claims (1)

(57) [Claims] A pair of terminals have an outer width between terminals inside the outlet.
The outer width between terminals at the position where
In the plug-in outlet provided at the specified interval, while providing a wall having both insulation on the outer periphery of the hollow portion provided in the outlet body and the lid side, both the center portion which is a joint of the walls is provided. A space portion of any size is provided on the wall, and a spiral shape memory alloy is provided inside the hollow portion,
An outlet characterized in that a mandrel having an arbitrary length and shape is provided at the center of the shape memory alloy.