JP2003100401A - Receptacle for electric power supply cord - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a set of receptacles for an electric power supply cord, which has an alarm function to be actuated when the working current exceeds a tolerable current value of the electric power supply cord, and which is devised so that the number of the plug ports corresponding to the installing place of the receptacle main body and to the connected number of the electric instrument at this place can be increased or decreased. SOLUTION: This consists of the master receptacle which has an alarm to be actuated when the working current exceeds the tolerable current value of the cord for the electric power supply, which has its reset button, and which has a plug receiver with some plug ports, and consists of a daughter receptacle which has some plug ports and a plug terminal and the plug receiver for the next stage together as a set. The master receptacle is extended/connected with the daughter receptacle in series arrangement and mutual daughter receptacles are extended/connected in series arrangement, and the number of the extension/ connection between the receptacles is possible without limit unless the tolerable current value is exceeded, and the receptacles can be set corresponding to the purpose of usage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outlet set for connecting a power cord in electric / electronic equipment.

[0002]

2. Description of the Related Art In recent years, computers have come to be used not only in Japan but also in companies and ordinary households all over the world, and accompanying this, the demand for peripheral devices thereof has been increasing. This tendency of electrification is rapidly progressing due to the widespread use of various electric appliances in homes as well as the spread of OA equipment in offices. Under these circumstances, the outlets for power plugs installed in the required locations in the room (mainly wall surfaces) are not always installed near the locations where these electrical devices are placed, and in many cases The extension part is used to extend the plug part to the place where the electrical equipment is located.

Further, when electric equipment and peripheral equipment related thereto are arranged close to each other, the number of plug connecting portions of power plug outlets installed near them is insufficient. Therefore, in general households, so-called octopus wiring is performed by adding outlets, but when simultaneously using electrical equipment, the outlet endurance current value for the power cord used there (for example, 15 amperes)
There is a risk of fire if the temperature exceeds

[0004] Normally, in regard to a stationary type outlet, in consideration of the capacity of indoor wiring, if an abnormal current interrupting device (breaker) for preventing overcurrent that is branched into several exceeds the withstand current of the wiring. It is designed to work automatically. However, in a power cord outlet that is replenished from a stationary outlet, the electrical resistance at the connection between the plug receiver and the flag terminal is large, so local heating occurs even under the withstand current and flammable materials in the vicinity There is a fear of fire from.

In particular, if dust or the like adheres to the connection between the plug receiver and the plug terminal during the long-term use,
This causes a fire. Therefore, even for outlets for power cords that have multiple outlets, outlets with alarms that warn when the required current value is exceeded,
Already proposed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made based on the above circumstances, and has an alarm function which is activated when the working current exceeds the durable current value of the power cord, and the outlet main body A power cord outlet designed to increase or decrease the number of plug outlets according to the installation location and the number of electrical devices connected at that location.
Is to provide a set.

[0007]

The invention according to claim 1 has an alarm which is activated when the working current exceeds the service current of the power cord, a reset button for the alarm, and some plugs for connection. A set is provided with a parent outlet having a plug receiver, and one or more child outlets having several insertion ports and having a plug terminal to be inserted into the plug receiver and a plug receiver for the next stage. , The load on the plug of the device connected to the outlet of the child outlet,
It is characterized in that it is configured to be added to the current used by the main outlet.

In the invention of claim 1, in the invention of claim 2, the parent outlet and the child outlet are
It is characterized in that they are arranged in series so as to connect the plug receivers and the plug terminals.

Further, in the above-mentioned invention, the invention according to claim 3 is such that, at the plug connection points of the parent outlet and the child outlet or between the child outlets, the outlet main body made of each insulator is provided with the plug receiver. And a concave and convex annular fitting which is detachably fitted to each other so as to surround the plug terminal.

In such a configuration, the alarm function of the parent outlet operates when the current used is exceeded, so it is possible to deal with local heating on the outlet side before the abnormal current interrupt device (breaker) is activated. Moreover, the alarm function of the parent outlet can check the current used for the parent outlet and the child outlets connected thereto, so that safety can be ensured even if any number of child outlets are connected.

Moreover, by connecting the child outlets to the parent outlets according to the number of the connecting plugs of the electric equipment at the place where the outlets for the power cords are installed, it is possible to prepare an insertion port as needed. . In addition, the series arrangement between the sub outlets allows the cluttering of cords and the like due to the conventional octopus wiring to be organized.

Further, since the concave and convex annular fittings that are detachably fitted are formed between the parent and child outlets and between the child outlets, dust which is a cause of electric leakage and corrosion enters the heat generating portion. It is possible to prevent this from happening and to ensure safety on the outlet side.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows a usage state of the present invention. An alarm 2 which is activated when the durable current of a power cord 1 is exceeded, a reset button 3 of the alarm 2, and a parent outlet 4 composed of two insertion ports 4a. And a state in which the child outlets 5 and 6 are connected in series and have a plurality of insertion ports 5a and 6a and plug terminals to be inserted into the plug receiver of the parent outlet 4 and a plug receiver 7 for the next stage. Indicates the extension connection status. Although not shown, the plug terminals 10 shown in FIG. 2 are formed on the opposite sides of the plug receivers 7, respectively.

The plug connecting portions 4a, 5a, 6a are formed at regular intervals in the longitudinal direction, and the respective electric appliance plugs can be inserted therein. The embodiment of the present invention according to FIG.
Although the individual plugs have been added / connected and are in use, the parent outlet 4 having the power cord 1 has an abnormal current interrupt device (breaker) when the required current value is exceeded due to the added / connected child outlets. Before it activates, Alarm 2 will tell you that the service current has been exceeded. For example, if the used current exceeds the durable current value between the expanded and connected parent-child outlets and the alarm function is activated, limit the number of connected electric devices or the number of used electric devices to cancel the alarm function, or It is necessary to increase the number of child outlets and limit the number of connections. The alarm function is canceled by the above measures. When the use of the electric device is resumed, the alarm once cleared is made to function, so that the user can be prepared for the next time when the durable current is exceeded by pressing the reset button 3. For this reason, conventionally, the clutter due to the octopus wiring to the outlet may cause a stumbling, but as shown in FIG. 1, the cord connection to the outlet eliminates the entanglement by arranging in series. .

Further, in the outlet set according to the present invention, the alarm of the parent outlet notifies that the service current value is exceeded before the abnormal current interrupting device (breaker) is activated. You can add as many child outlets as you need depending on the number of connected electrical devices.

For example, 6 child outlets are provided for the parent outlet.
When the number of individual plugs is increased, plugs of electric devices and the like may be inserted into all of the insertion ports provided above. Since the alarm informs the durable current status, it is possible to limit the number of electric appliances used according to the status.

FIG. 2 shows a connecting portion between the plug terminal 10 and the plug receiver 7 of the present invention. Outlet bodies 5 and 6 made of respective insulators at parent outlets and child outlets or at connection points between child outlets
To surround the plug receiver 7 and the plug terminal 10,
An annular fitting of a concave portion 12 and a convex portion 11 which are detachably fitted to each other is formed.

Of course, a plug receiving terminal is formed on the opposite side of the plug receiving 7, and a plug receiving is formed on the opposite side of the plug terminal 10. Also, the plug connecting portions 4a, 5
Also in a and 6a, the annular fitting of the concave 12 and the convex 11 which are fitted as described above is formed.

Regarding the parent outlet and the child outlet of this outlet set, hooks 9 having elasticity on the side and repelling outward are formed corresponding to the plug terminals of the outlet main body. Corresponding to the tip hook portion 9b of 9, the hook engaging portion 8 that engages with the tip hook portion 9b is formed at the tip side edge of the outlet body on the plug receiving side.

Further, the hook portion 9b is engaged (used).
When the state is released, a slip stopper 9a is formed in order to fit a finger to the hook portion 9b so that it can be easily pulled out.

FIG. 3 is a sectional view of FIG. The plug receptacle 7 and the recess 12 and the projection 11 of the plug terminal 10 are shown to be fitted to each other, and the plug terminal 10 is inserted into the power plug receptacle 13. Further, a hook 9 and a hook engaging portion 8 for keeping the parent outlet, the child outlet, and the engaged state between the child outlets are formed. When connecting the outlets to each other, the elastic hook 9 can be bent to engage the hook portion 9b with the insertion hole of the hook engaging portion 8.

Further, since the hook uses its elastic characteristic, the hook 9 is flexed at the time of engagement, enters the insertion opening, and is engaged when the hook portion 9b protrudes. When releasing the hook, the anti-slip portion 9a of the hook is pushed toward the outlet body side, and the flexure can be used to release the engagement of the hook portion 9b with the hook engaging portion 8, which is convenient for operation. It has a good structure.

In addition, the outlet set according to the present invention, by connecting the hook 9 and the hook engaging portion 8 as shown in FIG. Since the joined state can be maintained, a fitted close contact state is formed between the outlets at the uneven portion.

In such a structure, since the engagement by the hook 9 is not easily disengaged by impact or reaction, it does not come off due to movement of the outlet body, and dust is not accumulated at the plug joint portion. Since it does not exist, the fear of ignition due to this is also eliminated. In such an outlet set, as long as the durable current does not exceed the predetermined value, it is possible to add child outlets corresponding to the required electric equipment and its peripheral equipment. In addition, the series arrangement also eliminates clutter between the power cords inserted into the outlets.

[0025]

By using the alarm function of the parent outlet, the current consumption of the parent outlet and the child outlets connected thereto can be checked, so that safety can be ensured regardless of how many child outlets are connected. Moreover, by connecting the child outlets to the parent outlets according to the number of connection plugs of the electric device at the place where the outlet for the power cord is installed, the insertion port can be prepared as needed.

[Brief description of drawings]

FIG. 1 is a perspective view of a used state and an added state according to an embodiment of the present invention.

FIG. 2 is likewise a perspective view of a plug connecting portion.

FIG. 3 is a cross-sectional view of the plug connection portion of FIG.

[Explanation of symbols]

1. Power cord 2. alarm 3. Reset button 4. Parent outlet body 4a, 5a, 6a. Plug outlet 5, 6. Child outlet body 7. Plug receiver 8. Hook engaging part 9. hook 9a. Anti-slip part 9b. Tip hook 10. Power plug terminal 11. Convex fitting part 12. Recessed mating part 13. Power plug receiver

Claims (3)

[Claims] 1. An alarm which is activated when the current used exceeds the withstand current of the power cord, a reset button for the alarm, and a parent outlet having some plugs and a plug receptacle for connection, and some plugs. And a one or more sub outlets each having a plug terminal to be inserted into the plug receiver and a plug receiver for the next stage, An outlet set for connecting a power cord, wherein the load on the plug is also configured to be added to the current used by the parent outlet. 2. The power cord according to claim 1, wherein the parent outlet and the child outlet are arranged in series so as to connect their plug receivers and plug terminals. Outlet set for connection. 3. The parent outlet and child outlet,
Or at the plug connection point between the child outlets,
2. The outlet main body made of each insulator is formed with a concave and convex annular fitting that is detachably fitted to each other so as to surround the plug receiver and the plug terminal. An outlet set for connecting a power cord according to any one of 1 to 3.