JP3062696U - Extension cord outlet - Google Patents

Abstract

(57) [Problem] To provide an outlet of an extension cord which can control on / off of all appliances connected to the outlet by turning on / off a single appliance. SOLUTION: The extension cord outlet of the present invention is provided with a plurality of sets of insertion holes into which plugs of different electric appliances can be inserted, and a switch is provided between the main insertion hole and the adjacent insertion hole. A circuit device is provided, the switch circuit device is connected to a current detection circuit between the main inlet and the power supply, and by turning off the electric device of the main inlet, the on / off of all the connected electric appliances is turned off. Can be controlled, and the on / off of all appliances connected to the outlet can be controlled by the on / off of a single appliance, which is convenient for operation and can save power.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a type of outlet of an extension cord, and in particular, by shutting off a switch of an electric appliance connected to a main outlet set, it is possible to cut off the power of the entire outlet and thereby other outlets. The present invention relates to an extension cord outlet that saves power by turning off the power supply of an appliance connected to a mouth set, and that can easily perform an on / off operation of the appliance.

[0002]

[Prior art]

 In general, when using a variety of appliances at the same time indoors, such as computers, radios, electric fans, lamps, etc., an extension cord with multiple sets of sockets is required to supply power to them. used. Each electric appliance has a power switch, and after each electric appliance is connected to the power supply, the state of energization or disconnection is controlled by each electric power switch. The outlets of such extension cords usually have a total switch so that the on / off of all the appliances connected to the outlet can be controlled simultaneously, thereby eliminating the hassle of turning on or off the power individually. It is like that. The structure of such a conventional extension cord outlet is as follows.

FIG. 1 is an exploded rear perspective view of a conventional extension cord outlet (10). Inside, a plurality of equally spaced insertion holes (14, 15, 16) are provided by three rectangular metal lead pieces 11, 12, and 13, and one control port is provided inside the outlet (10). A switch (17) is provided, and a switching button (19) that is exposed to the outside from the outlet (10) is provided. When the switch button (19) is in the ON position, the entire outlet (10) is in a conductive state, and when the switch button (19) is in the OFF position, the entire outlet (10) is in a disconnected state.

[0004] Each set of insertion ports (14, 15, 16) of the conventional outlet (10) is connected to a separate electric appliance, for example, the first insertion port (14) is connected to a lamp, The second insertion port (15) is connected to the radio, and the third insertion port (16) is connected to the computer. The drawback of such an outlet (10) is that when the appliance at the first outlet is turned off, only the lamp is turned off slightly and the appliance at the other outlet (radio, computer) Is not turned off. For this reason, if many electric appliances are used in an office or the like, it is necessary to turn off each electric power supply. By turning off the switching button on the outlet (10), all connected appliances can be turned off.However, since the outlet of such an extension cord is usually placed on the ground, Inconvenient on / off operation. In addition, such extension cord outlets are uneconomic because they consume power unless all power is turned off when a person leaves the room.

[0005]

[Problems to be solved by the invention]

 It is an object of the present invention to provide a kind of extension cord outlet, which can cut off the whole outlet by switching off an electric appliance connected to the main insertion set, thereby making it possible to cut off the electricity. The power supply of the electric appliance connected to the other insertion port set shall be turned off to save the electric power, and the electric appliance may be easily turned on and off.

[0006]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION The invention of claim 1 is directed to an extension cord outlet comprising a plurality of insertion sets arranged at regular intervals and for insertion of different electrical plugs, wherein one set of main insertion sets is provided. A switch circuit device is provided between one of the set of insertion ports adjacent thereto, and the switch circuit device is connected to the current detection circuit between the main set of the insertion port and the power supply, and The extension cord outlet is configured so that the on / off of all the appliances connected to the outlet is controlled by the on / off of the switch of the appliance inserted into the outlet. According to a second aspect of the present invention, there is provided an extension cord outlet according to the first aspect, wherein a portion provided with a main insertion port set of the outlet is enlarged for identification. According to a third aspect of the present invention, there is provided the extension cord outlet according to the first aspect, wherein the input and output of the switch circuit device can be connected to one manual switch. The invention according to claim 4 is characterized in that the current detection circuit is connected to an amplifier using a copper set and detects the magnitude of current at both ends of the copper set. The outlet is the extension cord described. The invention according to claim 5 is characterized in that the current detection circuit is connected to an amplifier by an iron core and determines the magnitude of the voltage based on a magnetically sensitive voltage to detect a current output. The extension cord outlet described in. The invention of claim 6 is such that the switch circuit device uses a zero point detection circuit, and triggers the thyristor with the circuit pulse so as to conduct or not conduct the thyristor depending on whether or not a current passes. The outlet of the extension cord according to claim 1 is characterized in that: The invention according to claim 7 is the extension cord outlet according to claim 1, characterized in that the switching circuit device controls on / off of a load depending on whether or not the relay is excited by a transistor. . The invention of claim 8 is the extension cord outlet according to claim 1, characterized in that the switch circuit device drives opening and closing of the contact piece set by a small motor. According to a ninth aspect of the present invention, there is provided the extension cord outlet according to the first aspect, wherein a delay circuit is further provided in the current detection circuit. The invention according to claim 10 is characterized in that said current detection circuit controls a plurality of switch circuit devices in a multi-stage manner using different current values. Outlet.

[0007]

[Embodiment of the invention]

 The outlet of the extension cord of the present invention is provided with a plurality of sets of insertion ports into which different electrical plugs can be inserted, and a switch circuit is provided between the main insertion port set and the adjacent insertion port set. A device is provided, and the switch circuit device is connected to the current detection circuit between the main outlet set and the power supply, and is connected to the outlet by switching off an electric appliance connected to the main outlet set. In addition, the on / off of all appliances can be controlled, and the on / off of all appliances connected to the outlet can be controlled by the on / off of a single appliance, which is convenient for operation and can save power.

[0008]

【Example】

 As shown in FIG. 2, the outlet (20) of the extension cord of the present invention has a plurality of equally spaced insertion port sets (21), (22) and (23). Plugs of different appliances can be inserted into the mouth sets (21) (22) (23). The part (24) provided with the main insertion set (21) was provided with another insertion set (22) (23) so that the user could use it separately. It is slightly larger than the part. Inside the present invention, as shown in FIG. 3, three rectangular metal pieces (30), (40), (50) forming the insertion grooves and the corresponding holding grooves (210), (220), (230). ), And one end of the rectangular metal piece (30) is connected to the current detection circuit (60). Another end of the current detection circuit (60) is connected to a power cord (61). The middle rectangular metal piece (40) is connected to the ground line, and one end of another rectangular metal piece (50) is connected to the overload protection device (70). The other end of the overload protection device (70) is also joined to the power cord (61). In the preferred embodiment shown, a switch circuit arrangement (80) is provided between the main insert set (21) and the adjacent insert set (22), and the switch circuit arrangement (80) is provided. ) And the above-described current detection circuit (60) are connected.

In the embodiment shown in FIG. 4, when the appliance inserted into the main insertion port set (21) is in the ON position, the entire circuit is in a conductive state, and the main insertion port set (21) is turned on. When the appliance is turned off, the current detection circuit (60) sends to the switch circuit device (80) whether or not there is current output, the entire circuit is cut off, and it is connected to the outlet of this extension cord. The power of all the electric appliances is shut off.

In a feasible embodiment, this current detection circuit (60) employs a 1-10 m ohm copper resistor (62) as shown in FIG. If the currents at both ends of A and B are excessively large or small, that is, D3 is turned on or off, it is possible to determine the presence or absence of current output. D1 and D2 in the circuit are used to protect the amplifier (620), and when the voltage of the copper resistor (62) is excessive, the voltage drops by at most ± 0.7 volts and is input in anti-phase or non-anti-phase. You.

In the embodiment shown in FIG. 6, the current detecting circuit employs an iron core 63 and is connected to an amplifier 630. When a current passes through the iron core 63, the current detecting circuit is deflected by the magnetic effect to the amplifier 630. A magnetically induced voltage is generated at both ends of the phase or non-reverse phase, the magnitude of the voltage is determined, and the magnitude of the main current can be known.

[0012] The appliances connected to the main outlet set of the outlet and the other outlet sets, if compatible or have a correlated network information product, shall be turned off first. Although it will be turned off later, a collision action may occur and cause a down. In the embodiment shown in FIG. 7, as a precautionary measure, the current of the current detection circuit is connected to the delay circuit (601), and when the delay circuit (601) is charged, the diode conducts and the resistance of the resistance is reduced. In addition, the capacitor C is quickly charged and discharged, that is, the diode is turned off, and the discharge is slowed down through the resistance, thereby achieving the preventive function.

In the embodiment of FIG. 8, a zero point detection circuit (84) is used, the current output passes through the zero point detection circuit (84), and its pulse triggers the gate G of the thyristor (841) to activate the thyristor. The load (21) is controlled by turning it on or off without passing current. In the embodiment of FIG. 9, the B pole of the transistor (85) is used, and when a current flows, that is, the transistor (85) is turned on, the relay (851) is excited, and the load is turned on and off by the relay (851). It is controlled.

In the embodiment of FIG. 10, the switch circuit device (80) drives one small motor (802) with one step-down device (801), and the motor (802) detects the ingress of current. At times, the switch set (803) is controlled via a reduction gear (not shown) to control the conduction and non-conduction of the circuit.

In the embodiment shown in FIG. 11, a manual switch (90) is connected to the input / output terminal of the switch circuit device (80), and detects the state of the current when necessary, and in any case, Also, it is designed to exhibit a start-up state through a manual switch operation.

In the embodiment shown in FIG. 12, the current detection circuit (60) can use different current values (11) and (12) to control a plurality of multistage switch circuit devices (80). That's it.

[0017]

[Effect of the invention]

 When the present invention is used, when the switch of the electric appliance inserted into the main insertion port set (21) is turned off, the above-mentioned current detection circuit (60) does not pass the current and the switch circuit device (80 ), The entire outlet is cut off, and all the appliances plugged into the outlet are turned off at once. Therefore, the present invention eliminates the need to turn off the electric power of each electric appliance and is very convenient in operation, and all electric appliances connected to the outlet only by switching off the electric appliances connected to the main insertion port set. Power can be turned off, which can provide an effect of saving power. Therefore, it can be said that the present invention is practical, has novelty and industrial value.

[Brief description of the drawings]

FIG. 1 is an exploded rear view of a conventional extension cord outlet.

FIG. 2 is a three-dimensional view of the present invention.

FIG. 3 is an exploded rear view of FIG. 2;

FIG. 4 is an electric circuit diagram in which the present invention can be implemented;

FIG. 5 is a circuit diagram of an embodiment in which a copper resistor is employed in the current detection circuit of FIG. 4;

FIG. 6 is a circuit diagram of an embodiment in which an iron core is used in the current detection circuit of FIG. 4;

FIG. 7 is an embodiment diagram in which a delay circuit is added to the current detection circuit of the present invention.

FIG. 8 shows a switch circuit of FIG.
FIG. 3 is a circuit diagram of an embodiment adopting FIG.

FIG. 9 is a circuit diagram of another embodiment of the switch circuit of the present invention.

FIG. 10 is another embodiment of the mechanical switch circuit of the present invention.

FIG. 11 is still another possible electric circuit diagram of the present invention.

FIG. 12 is still another possible electric circuit diagram of the present invention.

[Explanation of symbols]

 (20) Outlet (21) Main insertion set (22) (23) Insert set (30) (40) (50) Rectangular metal strip (60) Current detection circuit (61) Power cord (70) Overload protection device (80) Switch circuit device (62) Copper resistor (63) Iron core (64) Zero detection circuit (65) Transistor (90) Manual switch

Claims (10)

[Utility model registration claims] 1. An extension cord outlet comprising a plurality of sets of insertion holes arranged at equal intervals and provided for insertion of plugs of different electric appliances, a set of main insertion holes and an adjacent set thereof. A switch circuit device is provided between one of the insertion port sets, and the switch circuit device is connected to the current detection circuit between the main insertion port set and the power supply,
An extension cord outlet configured so that on / off of all the appliances connected to the outlet is controlled by turning on / off a switch of the appliance inserted into the main insertion port set. 2. The extension cord outlet according to claim 1, wherein a portion of the outlet provided with a main insertion port set is enlarged for identification. 3. The extension cord outlet according to claim 1, wherein the input / output of the switch circuit device can be connected to one manual switch. 4. The extension of claim 1, wherein the current detection circuit is connected to the amplifier using a copper set and detects the magnitude of the current across the copper set. Cord outlet. 5. The current detection circuit according to claim 1, wherein the current detection circuit is connected to the amplifier by an iron core, and determines a magnitude of the voltage based on a magnetically sensitive voltage to detect a current output.
The extension cord outlet described in. 6. The switch circuit device uses a zero point detection circuit, and triggers a thyristor by a pulse of the circuit to make the thyristor conductive or non-conductive depending on whether a current passes or not. The outlet of the extension cord according to claim 1. 7. The extension cord outlet according to claim 1, wherein the switch circuit device controls on / off of a load depending on whether or not a relay is excited by a transistor. 8. The extension cord outlet according to claim 1, wherein the switch circuit device drives opening and closing of the contact piece set by a small motor. 9. The extension cord outlet according to claim 1, wherein a delay circuit is further provided in the current detection circuit. 10. The extension cord outlet according to claim 1, wherein said current detection circuit controls a plurality of switch circuit devices in a multi-stage manner using different current values.