JP2000231968A - Outlet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent electric shock accident and leak accident by cutting off the current through a receiving blade of an outlet when not used. SOLUTION: A switch 9 and an indication lamp 10 are mounted on a case of an outlet. An input terminal 9a of the switch 9 is connected to connection terminals 20a for feeders 20 of the outlet. Connection terminals 9b of the switch 9 are connected to connection terminals 3a for receiving blades 3. Portion between the terminals 9a, 9b is conducted or shut off by switching a switching knob 14 of the switch 9 for current through the receiving blades 3 only when necessary. The indication lamp 10 is turned on when the receiving blades 3 are energized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outlet for a power plug arranged on a wall surface, a floor surface or the like.

[0002]

2. Description of the Related Art In an outlet buried in a wall or the like, a current is constantly applied to a built-in receiving blade (connection terminal). Therefore, if a metal piece or the like is accidentally inserted into the plug hole, an electric shock may be caused. In order to prevent such accidents, there is an outlet provided with a protective cover on the outer surface of the outlet, or energized to the receiving blade only when a power plug is inserted into the outlet (Japanese Patent Application Laid-Open No. 56-19877).

[0003]

In an electric device which is used continuously on a daily basis, once the power plug is connected to the outlet, the power switch on the device side is turned on and off, and the electric device is used for a long time. Even when not using the device, the power plug is hardly unplugged from the outlet. Therefore, the power plug and the power cord are always energized, which causes an electric shock accident or an electric leakage accident. When dust accumulated between the power plug and the outlet adheres to the connection terminal, air discharge occurs using the dust as a medium, and the spark ignites the dust, which may cause a fire.

[0004] When the electric equipment is not used, if the power plug is unplugged and removed from the outlet, the above-mentioned accident can be surely avoided. However, it is cumbersome to plug in and unplug the power supply every time an electric device is used. Therefore, in most cases, the circuit breaker is generally cut off when traveling for a long time. As described above, even if the power plug is unplugged and removed, the receptacle blade of the outlet is still in the energized state, and this also contributes to the inability to eliminate electric shock and energization.

An object of the present invention is to provide a switch in an outlet for switching the energizing state of the receiving blade to an on / off state, and to operate the switch even if the power plug is always connected to the outlet. To turn off the power supply to the power supply system after the receiving blade, thereby eliminating the occurrence of electric shock accidents and leakage accidents due to current being applied to the power plug, its cord, and the receiving blade. Is to do. Another object of the present invention is to make it possible to easily check whether or not the receiving blade is in an energized state, to draw the user's attention, thereby promoting the stop of energization to the power supply system when not in use. An object of the present invention is to provide an outlet that can prevent an accident such as an electric shock.

[0006]

An outlet according to the present invention has a case body 2 into which a power plug 12 is inserted and connected, and the case body 2 has a receiving blade 3 connected to a power supply line 20.
And a plug hole 11 communicating with the receiving blade 3. The case body 2 is provided with a switch 9 for switching a power supply state to the receiving blade 3 between an ON state and an OFF state. The input terminal 9a and the output terminal 9b of the switch 9 are connected to a connection terminal 20 for the power supply line 20.
a and the connection terminal 3 a for the receiving blade 3.

More specifically, the receiving blade 3 is provided on the outer surface of the case body 2.
There is provided an indicator lamp 10 that is turned on in accordance with the current-carrying state. A plurality of sets of receiving blades 3 and plug holes 11 are provided in the case body 2, and a switch 9 is provided for each receiving blade 3. The case body 2 includes a frame 5 fixed to the bracket 4 inside the mounting hole, a main case 6 mounted and fixed to the frame 5, and a decorative cover 7 covering an outer surface of the main case 6. The blade 3, the switch 9, and the indicator light 10 are incorporated.

[0008]

When the switch 9 is turned on, the power supply line 20 is electrically connected to the receiving blade 3, and a current is applied to the receiving blade 3. Conversely, when the switch 9 is turned off, conduction between the power supply line 20 and the receiving blade 3 is cut off. for that reason,
Even if the power plug 12 is connected to the receiving blade 3, no current flows in the power supply path after the receiving blade 3. Therefore,
According to the outlet of the present invention, when the switch 9 is not used,
Is turned off, even if the power plug 12 or the core wire of the cord and the receiving blade 3 are erroneously contacted, there is no electric shock and no leakage. By simply switching the switch 9 between the ON state and the OFF state, the power supply state to the power supply path after the receiving blade 3 can be changed, so that the power supply state can be changed more easily and quickly than in the case where the power supply state is changed by inserting and removing the power plug 12. The power supply state can be changed, and the trouble can be significantly reduced.

When the case body 2 is provided with the indicator light 10,
Since the conduction state of the receiving blade 3 can be clearly known by the indicator light 10, it is possible to draw the user's attention and to promote the stoppage of power supply to the unused electric equipment.

In an outlet provided with a plurality of sets of receiving blades 3, a switch 9 is provided for each of the receiving blades 3 so that the power supply state is turned on for each of the power supply systems in use and the other power supply systems. It is easy to use because it can be turned off. Even if a metal piece is accidentally inserted into the plug hole 11 to which the power plug 12 is not connected, there is no electric shock as long as the switch 9 is turned off.

When the receiving blade 3, the switch 9 and the indicator light 10 are incorporated in the main case 6, the switch 9, the indicator light 10
Separately, and a switch 9 and an indicator light 10
In addition, the work of connecting the power supply line 20 and the receiving blade 3 can be omitted, and the labor and cost required for installation work of the outlet can be reduced correspondingly.

[0012]

1 to 3 show an embodiment in which the present invention is applied to a wall outlet. In FIG. 1, the outlet has a case body 2 buried in a mounting hole 1 (see FIG. 3) opened in a wall. Two sets of receiving blades 3.3 connected to the power supply line 20 are provided inside the case body 2. The case body 2 includes a metal plate frame 5 screwed to the bracket 4 inside the mounting hole 1, a main case 6 press-fitted to the frame 5, and a decorative cover 7 covering an outer surface of the main case 6.
It is composed of

The main case 6 is made of an injection-molded product using a plastic material having a high insulating property.
And a switch 9 for switching the power supply state to each of the receiving blades 3 between an on state and an off state, and an indicator light 10 for displaying an energized state of the receiving blades 3. The main case 6 is provided with a pair of plug holes 11 communicating with each of the receiving blades 3. This plug hole 11
By inserting the plug blade 13 of the power plug 12 into the power plug 12, the plug blade 13 can be connected to the receiving blade 3.

The switch 9 is a fall-down switch capable of self-holding an ON state and an OFF state, and is provided in a power supply path between the power supply line 20 and each receiving blade 3 as shown in FIG. Specifically, the input terminal 9a of the switch 9 is connected to the connection terminal 20a for the power supply line 20, and the output terminal 9b of the switch 9 is connected to the connection terminal 3a for the receiving blade 3. The switch 9 is provided with a switching knob 14, which can be turned on and off to conduct or cut off the connection between the input terminal 9a and the output terminal 9b. FIG. 2 shows only a connection state between one of the receiving blades 3 and the power supply line 20.

The indicator lamp 10 is composed of a light emitting diode or a small light bulb, and receives an output current of the power supply adjusting circuit 15 provided between the connection terminals 3a for the receiving blade 3, and is in a state where a current is applied to the receiving blade 3. Lights only at. Each indicator light 10 has a plug hole 1 so as not to obstruct the plugging and unplugging of the power plug 12 and to confirm the lighting state even when the power plug 12 is plugged into the outlet.
1 on the left outside. Similarly, each of the switches 9 is disposed outside the plug hole 11 on the right side.

In FIG. 3, a decorative cover 7 has a square frame-shaped inner frame 7a screwed into a case arranged in the mounting hole 1.
And an outer cover 7b press-fitted to the inner frame 7a. The outer cover 7b is provided with windows and openings for exposing the main case 6, the switch 9, and the indicator lamp 10 to the outer surface of the cover.

According to the outlet configured as described above, the power supply to the receiving blade 3 can be cut off only by tilting the switching knob 14 of the switch 9 to the off side. Therefore, each receiving blade 3
Even if the power plug 12 is inserted and connected to the
It is possible to prevent a current from being applied to the subsequent power supply path. At this time, the indicator lamp 10 is turned off to indicate that the receiving blade 3 is in the current interrupting state. Regardless of whether the power plug 12 is plugged into the outlet or not, when the receiving blade 3 is in the energized state, the indicator lamp 10 is turned on, so that the user is alerted and the unnecessary energized state is shut off. Can be encouraged to do so.

In addition to the above embodiment, the switch 9 may be a push button switch, a rotary switch in which the switching knob 14 rotates, or a slide switch in which the switching knob slides back and forth. If necessary, the switch 9 may double as a contact breaker. Since the layout of the switch 9 and the indicator lamp 10 can be freely changed, the arrangement is not limited to the arrangement described in the embodiment. The configuration of the case body 2 is not limited. The present invention can be applied to a floor outlet, a table tap with an extension cord, and the like in addition to a wall.

[Brief description of the drawings]

FIG. 1 is a front view of an outlet.

FIG. 2 is a schematic diagram showing a connection state inside an outlet.

FIG. 3 is an exploded side view of the case body.

[Explanation of symbols]

 2 Case body 3 Receiving blade 6 Main case 9 Switch 10 Indicator light 11 Plug hole 12 Power plug 14 Switching knob 20 Power supply line

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5E021 FA03 FA07 FB07 FB21 FC05 FC27 MA03 MA22

Claims (4)

[Claims] 1. An outlet having a case body (2) into which a power plug (12) is inserted and connected, wherein the case body (2) is provided with a receiving blade (3) connected to a power supply line (20) and a plug hole (11) communicating with the receiving blade (3). The case body 2 is provided with a switch 9 for switching a power supply state to the receiving blade 3 between an ON state and an OFF state, and the input terminal 9 a and the output terminal 9 b of the switch 9 are connected to the power supply line 20. An outlet connected to the connection terminal 20a and the connection terminal 3a for the receiving blade 3. 2. An outlet according to claim 1, wherein an indicator lamp is provided on an outer surface of the case body, the indicator lamp being turned on in accordance with an energized state of the receiving blade. 3. The case body 2 is provided with a plurality of sets of receiving blades 3 and plug holes 11, and a switch 9 is provided for each of the receiving blades 3.
Outlet described. 4. The case body 2 includes a frame 5 fixed to the bracket 4 inside the mounting hole, a main case 6 mounted and fixed to the frame 5, and a decorative cover 7 covering an outer surface of the main case 6. The socket according to claim 1, wherein the main case includes a receiving blade, a switch, and an indicator.