JPH11273488A - Device for preventing switch from being left on, equipment for it, and facility using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily find that an electric apparatus is left on. SOLUTION: Ammeter relays 5 and 6 are installed on a service wiring 3 branched from a lead-in wire, while ammeter relays 7 and 8 are installed on another service wiring 4. the ammeter relays 5 and 7 are arranged so that the contacts 5A and 7A of their pointers contact with the other respective contacts 5B and 7B when the current is over 0.2 A while the ammeter relays 6 and 8 are arranged so that the contacts 6A and 8A of their pointers contact with the other respective contacts 6B and 8B when the current is over 0.5 A, and thereby the curcuit is put on and off. A light emitting diode DP1 (DP3) is installed on the conductor 9 (11) where the contact 5B (7B) of the ammeter relay 5 (7) exists, while a light emitting diode DP2 (DP4) is installed on the conductor 10 (12) where the contact 6B (8B) of the ammeter relay 6 (8) exists.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for preventing a user from forgetting to turn off an electric device when going out.

[0002]

2. Description of the Related Art There is an electric device having a timer function in which a switch is automatically turned off at a predetermined time or after a predetermined time. However, not all electric devices have such a function. In addition, even if it has a timer function, it is often used without setting it, and sometimes the user forgets to set it.

[0003] In any case, when going out, it is necessary to surely switch off the electric equipment from the viewpoint of preventing waste of electricity and ensuring safety. He was often worried that he would cut it and went to see it again for confirmation.

[0004]

Therefore, it is necessary to make it easy for the user to easily recognize the forgetting to turn off the electric equipment at the entrance or the like.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention comprises a plurality of current detecting means for detecting a current flowing through each of the use wirings branched from the drop-in line and connected to the use wiring; A plurality of display means provided in correspondence with the plurality of current detection means, for displaying the presence or absence of power consumption or the size thereof based on the detection results by the plurality of current detection means, and the plurality of display means are arranged side by side A switch for forgetting to turn off the switch having the first configuration,

[0008] In the above-described switch-over forgetting prevention device of the first configuration, a power-saving amount is numerically displayed on a digital display, and the switch-over forgetting prevention device has a second configuration.

[0007] A third configuration of the device for preventing the user from forgetting to turn off the switch according to the first configuration, wherein the display means is a light and is turned on when power is consumed or when the power consumption exceeds a predetermined value. Device to prevent the user from forgetting to turn off the switch,

[0008] In the switch off prevention device of the first configuration, each display means is composed of a plurality of lights, and the number of lights to be turned on increases as the power consumption increases. A switch for forgetting to turn off the switch having the configuration of 4,

[0009] In the switch-off forgetting prevention device of the fourth configuration, a switch-off forgetting prevention device of a fifth configuration in which lights are provided so as to be color-coded,

A distribution board, wherein each of a plurality of use wirings branched from a service line is provided with a detecting means for detecting a current flowing through the use wiring;

There is provided a building in which the device for preventing any one of the first to fifth switches from being forgotten to be turned off is installed in at least one place of a switchboard main body, a switchboard, an entrance, and an entrance. Is what you do.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment will be described with reference to FIGS. A pair of service lines 1 of alternating current is branched into a plurality of, for example, two sets of use wires 3 and 4 of 100 VAC in a distribution board 2, and current meter relays 5 and 6 are provided downstream of a breaker (not shown) of the use wire 3. Are installed, and current meter relays 7 and 8 are installed downstream of a breaker (not shown) of the use wiring 4.

The current meter relay has a contact point with a needle of a meter whose deflection angle increases in proportion to the magnitude of the current flowing through the wiring used for installing the relay.

[0014] The current meter relays 5 and 7 are connected to the use wiring 3 and
4 is, for example, 20 W or more, that is, when the current flowing through the use wirings 3 and 4 is 0.2 A or more, the contacts 5A and 7A of the needles
Touches the other contacts 5B and 7B, respectively, and the current meter relays 6 and 8 output power, for example, 50 W or more, which is consumed by an electric device (not shown) connected to the usage wires 3 and 4, When the flowing current is 0.5 A or more, the contacts 6A and 8A of the needle are configured to contact the other contacts 6B and 8B, respectively, so that the circuit is connected or disconnected at each position.

[0015] As shown in FIG.
A light emitting diode DP1 (DP3) is installed as a display means on the conductor 9 (11) having the contact 5B (7B) of (7), and the conductor 10 (12) having the contact 6B (8B) of the current meter relay 6 (8). ) Also has a light emitting diode DP2
(DP4)

As a constant voltage generating means for lighting the light emitting diodes DP1 to DP4, for example, a battery 13
Is installed. Reference numeral 14 denotes a protection resistor for each conductor.

The light emitting diodes DP1 and DP2 whose on / off are controlled by the current meter relays 5 and 6 installed on the use wiring 3, and the on / off control by the current meter relays 7 and 8 installed on the use wiring 4. The light emitting diodes DP3 and DP4 are a battery 13, a protection resistor 14,
For example, as shown in FIG. 3, the opaque plate member of a plastic case that houses therein the use wirings 3 and 4, as shown in FIG. It is juxtaposed.

Therefore, when a current of 0.5 A or more at which the power consumption becomes 50 W or more flows through the utilization wiring 3 (4), the contact point 5A (7) of the needle in the current meter relay 5 (7).
A) touches the contact 5B (7B) and the current meter relay 6
In (8), the contact 6A (8A) of the needle is changed to the contact 6B (8
B), the conducting wires 9 (11) and 10 (12) both communicate with the battery 13, so that the light emitting diode DP1 (DP
3), DP2 (DP4) is lit by applying the voltage of the battery 13 to each.

On the other hand, the power consumption of 20
Unless a current of 0.2 A or more, which is equal to or more than W, does not flow, any of the current meter relays 5 (7) and 6 (8) does not touch each other, so that the light emitting diodes DP1 (DP3) and DP2 (DP4) does not light because the voltage of the battery 13 is not applied to each of them.

The power consumption of the used wiring 3 (4) is 2
When a current of 0.2 W or more and less than 0.5 A that is 0 W or more and less than 50 W flows, the current meter relay 5
(7) turns on the light emitting diode DP1 (DP3) by passing the lead 9 (11) and the battery 13 through, while the current meter relay 6 (8) passes the lead 10 (12) and the battery 13 through. There is no light emitting diode DP2 (DP
4) does not light.

By the way, various electric devices are connected to the use wirings 3 and 4 for use. Some electrical devices consume power called standby power even when not in use.

For example, in an electric device having a remote control, a timer function, and the like, power of about several W to 10 W is consumed when the main power is turned on or a plug is inserted into an outlet to operate the respective functions. Is done.

In recent years, the use wiring 3 has been used in ordinary households, such as for living rooms, children's rooms, or in the southeast and southwest areas, for each location, and for outlets, air conditioners, and lights. Since the number of electric devices connected to each use wiring tends to decrease because the usage tends to be subdivided, the power consumed by each use wiring exceeds 20 W only by the standby power of the electric device. Is rare.

Therefore, the light emitting diodes DP1, DP
When 3 lights up, there is a suspicion that power consumption other than standby power is being performed on the use wiring. However, the light emitting diodes DP1 and DP3 may be turned on even when the power consumption of the fluorescent lamp of about 10 W is added to the standby power of one or two types of electric equipment. Leaving it alone is not a huge waste and there is little danger.

On the other hand, when the light emitting diodes DP2 and DP4 are turned on, it means that the used wiring consumes more than 50 W of power, so that the power consumption is much larger than the standby power of the electric equipment, and the power is forgotten. Large electrical equipment. Therefore, in this case, checking and turning off the switch of the electric device connected to the used wiring leads to prevention of waste of electric power and assurance of safety.

[Second Embodiment] A second embodiment will be described with reference to FIGS. In addition, in order to facilitate understanding, parts having the same functions as those described in FIGS. 1 to 3 are denoted by the same reference numerals in these figures.

Reference numeral 31 denotes a conventionally known current detecting means for detecting a current flowing through the utilization wiring 3 from the strength of a magnetic field or the like, and outputs a detection result to a controller 33 constituted by a microcomputer or the like. Is configured. Also, 32
Is a current detecting means for the utilization wiring 4 which functions in the same manner as the current detecting means 31.

The controller 33 stores a required control program in a built-in storage device (not shown).
The four switches SW1 to SW4 of the circuit in which the light emitting diodes DP1 to DP4 are wired as shown in FIG. 5 are controlled based on the current values detected by the current detecting means 31 and 32, for example, as shown in FIG.
As described above, the on / off of the light emitting diodes DP1 to DP4 juxtaposed as shown in FIG. 3 is controlled.

The controller 33 alternately reads the current values detected by the current detecting means 31 and 32,
1, based on the current value detected by the light emitting diode DP1,
Control of turning on / off of DP2, and controlling turning on / off of light emitting diodes DP3 and DP4 based on the current value detected by current detecting means 32.

A method for controlling the turning on / off of the light emitting diodes DP1 and DP2 based on the current value detected by the current detecting means 31, and a method for controlling the light emitting diodes DP3 and DP4 based on the current value detected by the current detecting means 32. FIG. 6 shows an example in which the controller 33 controls the turning on / off of the light emitting diodes DP1 and DP2 based on the current value detected by the current detecting means 31 since the method of controlling turning on / off is exactly the same. is there.

That is, the controller 33 obtains the value of the current flowing through the utilization wiring 3 from the detected value of the current detecting means 31 in step S1, and in step S2, the current value becomes 0.2 A at which the power consumption becomes less than 20 W. Or less than 0.5 A at which power consumption becomes 50 W or more, or 0.2 A or more and 0.5 A at which power consumption becomes 20 W or more and less than 50 W
Judge whether it is less than

If the detected current value is less than 0.2 A, the process proceeds to step S3 and none of the switches is turned on.
If it is equal to or greater than A, the process proceeds to step S4 and the switch SW
1, SW2 is turned on to turn on the light emitting diodes DP1 and DP2. If the current is not less than 0.2 A and less than 0.5 A, the process proceeds to step S5, where only the switch SW1 is turned on, and only the light emitting diode DP1 is turned on. Return to S1.

Even with such a configuration, the use wirings 3, 4
The power consumed by the light emitting diodes DP1 to DPD
Since it is displayed by lighting P4, the light emitting diodes DP1 to DP1 are displayed.
At a glance, the lighting status of DP4 indicates whether or not there is an electrical device that has been forgotten to be turned off.

Since the present invention is not limited to the above embodiment, various modifications can be made without departing from the scope of the claims.

For example, a manual switch may be provided in the circuit so that the display means such as a light emitting diode performs a display operation only when required.

A required circuit is formed by using a resistor, an operational amplifier, a diode and the like without using a microcomputer. When the power consumed by the used wirings 3 and 4 is 50 W or more, the light emitting diodes DP1 to DP4 are turned on. When the power consumption is less than 20 W, the light emitting diodes DP1 to DP
4 may not be turned on, and when the power consumption is 20 W or more and less than 50 W, only the light emitting diodes DP1 and DP3 may be turned on.

Further, as a power source for lighting the light emitting diode of the display means, a part of the power obtained from the use wiring may be rectified and used.

The light emitting diodes DP1 and DP3, which indicate that the power consumption slightly exceeds the standby power, use blue light emitting diodes for safety, and the power consumption far exceeds the standby power. The light emitting diodes DP2, DP4, etc. indicating the above may use red-based light emitting diodes that indicate danger. In addition, such a color classification can also be performed using a color glass or the like.

Further, the electric power consumed by the electric equipment connected to each use wiring is, for example, 100 W or more and 200 W or more.
.., That is, when the current flowing through each use wiring increases to 1 A or more, 2 A or more,..., The third, fourth,. , A more detailed display can be made possible.

The reference power value for controlling the turning on / off of the light emitting diodes DP1 to DP4 is 2
It is a matter of course that it is not limited to 0W and 50W.

Further, the light emitting diode may be configured such that even if the power consumed by each of the used wirings is equal to or more than a predetermined value, only one of the light emitting diodes is turned on for each of the used wirings.

A digital display made of liquid crystal or the like is connected to the controller 33 in place of the light emitting diode. Based on the current value detected by the current detecting means, the controller 33 calculates the power consumption of each used wiring by a numerical value. It can also be configured to display.

Further, the detection of the current flowing through each use wiring by the current detecting means may be performed on the downstream side of the distribution board 2.

Display means such as a light emitting diode and a digital display may be assembled to the case of the distribution board 2 to form a device for preventing the switch from being turned off, or may be assembled to a case plate or the like to form the switchboard 2. It is also possible to install it at the side, at the entrance, at the entrance, etc.

If the device for preventing the switch from being turned off having the above-described configuration is installed in the above-described place, it is possible to know at a glance the device when going out whether or not there is any electrical device that has been forgotten to be turned off. Therefore, the user never forgets to turn off the switch of the electric device and goes out. In addition, since the display of the switch forgotten to be turned off is performed for each used wiring, the operation of turning off the switch of the electric device that has been forgotten to be turned off can be easily performed.

[0046]

As described above, if the device for preventing the switch from being forgotten to be turned off according to the present invention is installed at, for example, an entrance, a service door, a distribution board, or beside a distribution board, this device can be used when going out. You can tell at a glance whether there are any electrical devices that you have forgotten to turn off. Can now be prevented. In addition, since the switch forgotten display is displayed for each use wiring, the switch of the electric device that is forgotten to be turned off can be easily turned off.

Further, in the switch-off forgetting prevention device configured to turn on the light when the power consumption exceeds a predetermined value, the light is not displayed when only the standby power of the electric device is consumed. There is no mistake in judgment.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a distribution board.

FIG. 2 is a circuit diagram of a switch-off forgetting prevention device.

FIG. 3 is an explanatory diagram of a display unit of the switch off forgetting prevention device.

FIG. 4 is an explanatory diagram of a distribution board.

FIG. 5 is an explanatory diagram of a display unit of the switch off forgetting prevention device.

FIG. 6 is an explanatory diagram showing a control flow.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drop-in wire 2 Distribution board 3, 4 Use wiring 5-8 Meter relay 9-12 Conductor 13 Battery 14 Protection resistor 31, 32 Current detection means 33 Controller DP1, DP2, DP3, DP4 Light emitting diode SW1, SW2, SW3, SW4 switch

Claims (7)

[Claims] 1. A plurality of current detection means for detecting a current flowing through each of utilization lines branched from a drop-in line and connected to an electric device; and a plurality of current detection means installed corresponding to the plurality of current detection means, and provided by the plurality of current detection means. A plurality of display means for displaying the presence or absence or the size of power consumption based on a detection result, and the plurality of display means are arranged side by side. 2. The device according to claim 1, wherein the display means is a digital display for numerically displaying the power consumption. 3. The switch according to claim 1, wherein the display means is a light, and is turned on when power is consumed or when the power consumption exceeds a predetermined value. Prevention device. 4. The switch according to claim 1, wherein each display means comprises a plurality of lights, and the number of lights turned on increases with an increase in power consumption. Device to prevent forgetting to turn off. 5. The device according to claim 4, wherein the lights are provided so as to be color-coded. 6. A distribution board, wherein a detection means for detecting a current flowing through each of the plurality of use wirings branched from the service line is provided. 7. The switch-off forgetting prevention device according to any one of claims 1 to 5, wherein the switch-over forgetting prevention device is installed at least at one place at a side of the distribution board, at a side entrance, at an entrance, and at an entrance. Building.