JP4102242B2 - Energy-saving control terminal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an energy-saving device that is externally attached like an adapter between an electric device and a commercial power source and implements energy saving of the electric device.
[0002]
[Prior art]
In recent years, interest in environmental issues such as global warming prevention and CO ₂ increase suppression system is increasing, but energy consumption is still increasing. In particular, household energy consumption is increasing at a higher rate than industrial use, and the importance of energy saving is being recognized. On the other hand, the energy saving of the electric power consumption of an electric device alone is almost approaching its limit. Therefore, new developments such as energy saving will be required in the future.
[0003]
For this purpose, FIG. 18 shows a conventional example in which energy-saving control is performed with an energy-saving control terminal device provided between a target electric device and a commercial power source. The energy-saving control terminal device 1 is installed between the electric device 2 and the commercial power source 3, and when the presence sensor 6 detects the absence of a person, the relay switch 5 is turned off with an appropriate delay time, and the target electric power is supplied. Turn off the device. Then, when turning on the power of the electric device 2, an ON command for the relay switch 5 is transmitted to the energy saving control terminal device by communication, and the power of the electric device 2 is turned on. As described above, the electric device that has been forgotten to be turned off can be automatically turned off to save energy.
[0004]
There is also known a measuring device that measures a current from an input current to a measurement object and shifts to a power saving state when the measured current is a predetermined value or less for a predetermined time (see, for example, Patent Document 1).
[0005]
[Patent Document 1]
JP 2002-139526 A (Claim 1, FIG. 1)
[0006]
[Problems to be solved by the invention]
However, the conventional energy-saving control terminal device needs to be energized at all times even when the electric device is in an off state, that is, particularly for an electric device such as an electric device that has a longer non-use time than the operation time, This means that wasteful power is consumed.
[0007]
An object of the present invention is to realize an energy-saving control terminal device that energizes an energy-saving control terminal device only when a target electric device is in operation and does not use unnecessary power consumption.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, an energy-saving control terminal device according to the present invention includes a control unit connected to an electric device connected to a commercial power source, first and second current measuring units provided on a power line of the electric device, A first switch provided on a power line of the electrical device and turned on by a user; a second switch connected in parallel with the first switch and controlled to be turned on / off by the control unit; Provided on a power line of the control means for detecting a current to be turned on by the second current measuring means, and on-controlled by the input current detection circuit and off-controlled by the control means And a third switch .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
[0012]
( Reference Example 1 )
FIG. 1 shows a first reference example of the present invention. First, an energy-saving control terminal device 1 is inputted to a commercial power supply 3 of AC 100V. Further, the energy-saving control terminal device 1 is provided with an input receptacle outlet, and commercial power can be supplied to the electric device 2 by inserting a plug of the electric device 2.
[0013]
In addition, the energy saving control terminal device 1 is connected to a first switch 4 provided on a power line 9 of an electric device connected to a commercial power source, which is turned on by the user. The first switch 4 is a switch that is turned on when operated by the user, and is turned on only when operated by the user.
[0014]
Further, a second switch 5 connected in parallel with the first switch 4 is provided inside the energy-saving control terminal device 1, and even if the first switch is off, the second switch 5 By turning on and off, the electric device 2 and the control means 15 can be turned on and off. The second switch 5 is controlled by the control means 15 and is constituted by, for example, a relay. Further, in this configuration example , power is supplied to the control unit 15, but the power supplied to the control unit 15 is used for power supply of the entire energy saving control terminal device 1.
[0015]
A first current measuring unit 11 is installed on the power line 9 connecting the commercial power source 3 and the electric device 2, and the output is input to the control unit 15. In addition, the electric device 2 is provided with a local switch 2a that can turn on / off the operation of the device. The local switch 2a is a switch that is always turned on when the main power supply is turned off. is there.
[0016]
Next, the energy saving operation will be described with reference to the timing chart of FIG.
[0017]
First, the procedure for turning on the electric device 2 will be described below. Before the user turns on the power, the switches 4 and 5 are both off. First, when the user operates the first switch 4 and turns on the switch, power is supplied to both the electric device 2 and the control means 15 simultaneously. The control means 15 turns on the second switch 5 immediately after the power is turned on. Thereby, even if a user cancels | releases operation of the 1st switch 4 and a switch turns off, the electric power supply to the electric equipment 2 and the control means 15 is maintained. The first switch 4 is turned on only when the user is operating as described above. When the user stops the operation, the first switch 4 is opened.
[0018]
Then, while the power is supplied, the control unit 15 detects the current value input to the electric device 2 measured by the first current measuring unit 11, and if the value is larger than the first predetermined value, the electric device 2 Is in the on state, and the on state of the second switch 5 is held. The first predetermined value is stored in advance in storage means such as a memory built in the control means or provided in the peripheral circuit.
[0019]
Next, when the user turns off the local switch 2a of the electric device 2 to turn off the electric device, the current supplied to the electric device 2 is only the standby current, and the current value becomes smaller. Then, when the input current of the electric device 2 detected by the first current measuring unit 11 becomes equal to or less than the first predetermined value described above, the control unit 15 turns off the second switch 5. By doing in this way, since the energy-saving control terminal device 1 turns off the power supply of the device itself and disconnects the electric device 2 from the commercial power supply, even when the electric device 2 has standby power, its consumption current is reduced to zero. The power consumption of the energy saving control terminal device 1 can also be made completely zero.
[0020]
Further, as another sequence at the time of power-on, as shown in FIG. 3, the following is also possible. That is, when the user turns on the first switch 4, the electric device 2 is turned on and current consumption of the electric device 2 flows. This is a sequence in which this is detected by the first current measuring means 11 and the second switch 5 is turned on by the control means 15 when it is larger than the first predetermined value.
[0021]
In this configuration example , the first switch 4 is a switch that is turned on only when operated by the user. However, even when a switch that maintains the on state and the off state is used, the user performs the on operation. After that, this configuration example can be applied by obliging the first switch 4 to return to the OFF state.
[0022]
The local switch 2a of the electrical device 2 is a switch that is always turned on when the main power is turned on, but even if the switch is not always turned on, the user can use the remote control or the like to This configuration example can be applied by turning on the local switch 2a while turning on the first switch 4.
[0023]
As described above, according to this configuration example, it is possible to automatically turn on the power supply of the energy-saving control terminal device 1 by detecting the input current when the electric device 2 is turned on. Moreover, since the power supply of the energy-saving control terminal device 1 itself is turned off when the electric device 2 is turned off, the power loss can be eliminated.
[0024]
( Reference Example 2 )
FIG. 4 shows Reference Example 2 of the present invention, and a human sensor 6 is newly provided in the configuration of Reference Example 1 . In this configuration example , the main power source of the electric device is automatically turned off when the user is not in the vicinity using the human sensor 6, and the user operates the on / off operation of the electric device 2. Other configurations such as the first switch 4 to be performed are the same as those in the first reference example, and thus redundant description is omitted.
[0025]
And the control means 15 of this structural example determines whether the electric equipment 2 is used by detecting whether there is a person near the electric equipment 2 by the human sensor 6, and when not using it, Energy saving control is performed by turning off the power of the electrical equipment 2 and the energy saving control terminal device 1 itself.
[0026]
This specific operation will be described with reference to the timing chart of FIG. In FIG. 5, the human sensor 6 outputs H when there is a person in the detection area, and outputs L when there is no person. Further, FIG. 5 shows a state where the electric device 2 is already turned on.
[0027]
In FIG. 5, when there is no person and the output of the human sensor 6 changes from H to L, the control means 15 measures the elapsed time and turns off the second switch 5 after a predetermined delay time has elapsed. Thereby, the input current of the electric equipment 2 and the energy-saving control terminal device 1 itself is set to zero to achieve energy saving.
[0028]
At this time, if the person returns before the elapse of the predetermined delay time and the output of the human sensor becomes H again so that the electric device is not turned off against the user's will, the elapsed time Clear the measurement. And when the person is absent again, the measurement is started.
[0029]
In addition, according to such a process, even when an inexpensive sensor using a sensor that outputs a pulse only when detecting movement or movement of a human body, such as a pyroelectric infrared sensor, is used as the human sensor 6. Energy saving control can be realized.
[0030]
As described above, according to this configuration example , the power loss of the energy-saving control terminal device 1 itself is also turned off even when the user forgets to turn off the electric device and leaves, so that power loss can be eliminated.
[0031]
( Embodiment 1 )
FIG. 6 shows Embodiment 1 of the present invention. Compared to the configuration of Reference Example 2 , switches 4 and 5 are installed on the electrical device 2 side from the connection point of the control means 15, The third switch 8 for turning on / off only the control means 15, the second current measuring means 10 for detecting the input current of the electric device 2, and the input current detection circuit 12 for turning on the third switch 8 are provided. Is different.
[0032]
In the present embodiment, the other components such as the first switch 4 operated by the user to perform the on / off operation of the electric device 2 are the same as those in the first reference example, and thus the duplicated description is omitted.
[0033]
Next, the operation of the present embodiment will be described with reference to FIG. First, the initial state is a state where the electric device 2 is not turned on. Next, when the user turns on the first switch 4, the power supply of the electric device 2 is turned on, and a large input current flows immediately after the electric device 2 is turned on as shown in FIG. 7. Further, the input current detection circuit 12 turns on the third switch 8 when the input current is detected by the second current measuring means 10. As a result, power is supplied to the control means 15. Subsequently, the control means 15 turns on the second switch 5. Thereby, even if a user stops operation of the 1st switch 4, the power supply of the electric equipment 2 can be hold | maintained continuously.
[0034]
Next, when the electric device 2 turns off the local switch 2a of the main body of the home appliance directly from the remote controller by the user, the control unit 15 determines that the power source current of the electric device 2 has decreased. Detect with. Then, the control means 15 turns off the second switch 5 and then turns off the third switch 8 to turn off the standby power of the electrical equipment 2 and the power supply of the energy saving control terminal device 1 itself to save energy.
[0035]
In the present embodiment, as described in the reference example 2 , the human sensor detects the absence of a person while using the electric device 2 regardless of the operation of the user, and the power source Can be turned off. As for the operation, as shown in the timing chart of FIG. 8, the control means 15 turns off the second switch 5 to turn off the electrical device 2 immediately after detecting the absence or after a lapse of a predetermined time, thereby saving energy. Thereafter, the third switch 8 is also turned off, and the power of the energy saving control terminal device 1 itself is turned off to further save energy.
[0036]
The process of turning off the third switch 8 may be performed by simple sequence control performed after the second switch 5 is turned off, or the input current of the electric device is reduced by the first current measuring means 11. You may carry out by the result of having detected this.
[0037]
As described above, according to the present embodiment, when the presence of the energy sensor of the energy saving control terminal device is detected and the energy saving control is performed, the power source of the energy saving control terminal device itself is also turned off when the electric device is turned off. Loss can be eliminated.
[0038]
( Reference Example 3 )
FIG. 9 shows Reference Example 3 of the present invention, in which a signal output means 7 using an infrared output is added to the configuration of the first embodiment . The signal output means 7 using the infrared output is an example of the communication means, and is selected according to the communication interface of the electric device 2. Further, this configuration example is not provided with a switch for turning on / off the main power supply of the electric device 2, and energizes the energy-saving control terminal device 1 only while the electric device 2 is energized, thereby saving energy of the energy-saving control terminal device 1. is there. That is, in the present configuration example , the power saving control terminal device 1 is turned on only when the electric device 2 is in operation, and the current consumption of the energy saving control terminal device 1 is zero when the electric device 2 is off.
[0039]
FIG. 10 shows the timing chart. Here, the remote control output is a remote control of an electric device operated by the user.
[0040]
First, the initial state is that both the electrical device 2 and the energy-saving control terminal device 1 are off. Here, when a person turns on the electric device 2 with the remote controller, an input current flows into the electric device 2. This is detected by the second current measuring means 10, converted into a DC voltage by the input current detection circuit 12, and the third switch 8 is turned on. Then, power is supplied to the energy-saving control terminal device 1, the power source of the energy-saving control terminal device 1 is started, and the power supply to the electrical device 2 and the energy-saving control terminal device 1 is both maintained.
[0041]
Furthermore, when a person turns off the electrical device with the remote controller, the input current of the electrical device is only the standby current. This is detected by the first current measuring means 11, and if the detected current value is equal to or lower than the first predetermined level, the control means 15 determines that the electrical device 2 is turned off, and the third switch 8 is reset, and the power source current of the energy saving control terminal device 1 itself is made zero.
[0042]
As described above, the energy-saving control terminal device 1 can be energized only when the target electrical device 2 is in an operating state, and wasteful power can be reduced.
[0043]
The above description is an example in which the on / off operation of the local switch 2a of the electric device 2 is performed by the remote controller. However, even if the local switch of the electric device 2 is directly operated, the energy saving control terminal device 1 operates as described above. Thus, the standby power of the electric device 2 can be reduced to zero.
[0044]
In this configuration example , regardless of the user's remote control or direct operation, the human sensor can detect the absence of a person and can turn off the power while the electric device 2 is being used. . As for the operation, as shown in the timing chart of FIG. 11, when a person leaves the vicinity of the electric device, the human sensor outputs the absence, and the control means 15 receives the electric device after a predetermined delay time. 2 outputs an off command with infrared rays, and turns off the electric device 2. Thereafter, when the first current measuring means 11 detects that the electric device current is below a predetermined level, the control means 15 turns off the third switch 8 and stops the power supply of the energy saving control terminal device 1. To do.
[0045]
As described above, in the absence control, not only energy saving of the target home appliances but also standby power of the energy saving control terminal device can be made zero.
[0046]
FIG. 12 shows an embodiment in which this configuration example is further developed. Compared to the configuration shown in FIG. 8, two current measuring means 10 and two first current measuring means 11 are provided. Instead of the current measuring means, the single first current measuring means 11 is also used, and the other configurations are the same. And by setting it as such a structure, the number of electric current measurement means can be reduced, and the same effect | action and effect are acquired with an inexpensive structure.
[0047]
FIG. 13 is also an extension of this configuration example . In addition to the configuration shown in FIG. 8, the communication unit 14 is newly provided, and receives a command from the external communication terminal 16, and each predetermined time and each The predetermined value is changed and the electric device is remotely controlled. Each predetermined time and each predetermined value referred to here are the delay time until the switch is turned off after receiving the output signal from the human sensor described in the above embodiments, and the power on / off of the electric device is determined. The magnitude of the current value for Although FIG. 13 illustrates an example of power line communication, it can also be realized by a dedicated communication line or wireless communication.
[0048]
FIG. 14 is also an expanded configuration example of the present invention, in which both the signal output means 7 for turning off the local switch 2a of the electrical equipment 2 and the human sensor 6 are extended by the cable 20. For example, when the electric device 2 is a home appliance such as a television, it is most ideal to place the human sensor 6 near the electric device, and the signal output means 7 is also placed near the electric device 2. good. Further, if the separation type is used in this manner, the energy-saving control terminal device 1 itself is not frequently operated, and can be stored in an inconspicuous place indoors.
[0049]
Further, FIG. 15 shows an embodiment of the input current detection circuit 12 in each of the above configuration examples . In FIG. 15, the current flows also to the secondary side of the second current measuring means 10 due to the input current of the electric device 2, and is rectified by the diode bridge 17 and charged to the electrolytic capacitor 18. A current flows through the set coil 20 of the third switch 8 using the latch relay switch, the latch relay is set, and power is supplied to the control means 15.
[0050]
In FIG. 15, the on / off state of the electrical device 2 is detected by the second current measuring means 10 and is detected by the power source current of the electrical device 2. However, as shown in FIGS. Alternatively, a VT 13 for measuring the voltage may be provided to detect the voltage, and the power may be calculated by calculation to calculate the power. Further, the element of the second switch 5 or the third switch 8 can be constituted by a relay, a latch relay, a semiconductor or the like.
[0051]
Further, the first and second current measuring means can use CT to measure current easily and inexpensively, and can detect the current value.
[0052]
As described above, according to this configuration example , the control unit connected in parallel with the electric device connected to the commercial power source is provided, the power supply state to the electric device is determined, and the power supply to the control unit is controlled. -In particular, the power supply to the control means is stopped when it is determined that the power supply state to the electric device is in the off state, so that it is possible to eliminate power loss. .
[0053]
In addition, the power-on of the energy-saving control terminal device can be automatically started by detecting the input current when the power of the electric device is turned on, and the electric device can be connected with infrared output when it is determined by the human sensor to be absent. In order to turn it off, the user can use the infrared remote controller when turning on the electric device, which improves usability. In addition, since the CT for detecting the power-on state of the electric device and the CT for automatically starting the power source of the energy saving control terminal device can be shared, there are advantages in terms of cost and space.
[0054]
Furthermore, parameters of energy-saving control terminal devices (each predetermined time and each predetermined value) can be changed and remote control of electrical equipment can be performed using communication means. Therefore, the presence sensor and infrared output unit can be installed in an optimal place, and more accurate absence detection and infrared output can be performed. Furthermore, the input current detection circuit for starting up the power supply of the energy saving control terminal device can be realized with a simple circuit configuration.
[0055]
【The invention's effect】
As described above, according to the present invention, in the energy-saving control terminal device for energy-saving control of electrical equipment, since the power source of the energy-saving control terminal device itself is turned off when the electrical equipment is turned off, unnecessary power loss can be eliminated, Further, when detecting the absence by the human sensor of the energy saving control terminal device and performing the energy saving control, the power source of the energy saving control terminal device itself is also turned off when the electric device is turned off, so that the power loss can be eliminated.
[Brief description of the drawings]
Figure Figure showing a second operation of Reference Example 1 in Figure 3 shows the present invention illustrating the operation of Reference Example 1 in Figure 2 shows the present invention illustrating the overall configuration of Example 1 in Figure 1 the invention 4 is a diagram showing an overall configuration in Reference Example 2 of the present invention. FIG. 5 is a diagram showing an operation of Reference Example 2 of the present invention. FIG. 6 is a diagram showing an overall configuration in Embodiment 1 of the present invention. The figure which shows operation | movement of Embodiment 1 of this invention FIG. 8 The figure which shows 2nd operation | movement of Embodiment 1 of this invention [FIG. 9] The figure which shows the whole structure in the reference example 3 of this invention [FIG. Figure 11 a second embodiment of reference example 3 was developed in Figure 12 shows the present invention illustrating a second operation of reference example 3 of the present invention illustrating the operation of reference example 3 of the present invention reference in FIG. 14 is a present invention showing the overall configuration of a third embodiment in which the reference example 3 in FIG. 13 the present invention showing an entire structure to develop examples Figure [15] Another method for on-off state detection of the input current FIGS Figure 16 illustrates an embodiment of a detection circuit electric device of the present invention of the present invention illustrating the overall configuration of a fourth embodiment in which evolved 3 FIG. 17 is a diagram showing another second method for detecting the on / off state of an electric device according to the present invention. FIG. 18 is a diagram showing the overall configuration of a conventional example.
DESCRIPTION OF SYMBOLS 1 Energy-saving control terminal device 2 Electric equipment 2a Local switch 3 Commercial power supply 4 1st switch 5 2nd switch 6 Human sensor 7 Signal output means 8 3rd switch 9, 19 Power line 10 2nd electric current measurement means 11 1st 1 Current measurement means 12 Input current detection circuit 14 Communication means 15 Control means 16 Communication terminal 17 Bridge diode 18 Capacitor 20 Cable

Claims (14)

Control means connected to an electric device connected to a commercial power source, first and second current measuring means provided on a power line of the electric device, and a power source of the electric device provided on a power line of the electric device by a user A first switch that is turned on, a second switch that is connected in parallel with the first switch and that is controlled to be turned on / off by the control means, and a current that is applied to the electrical device by the second current measuring means. An energy-saving control terminal device comprising: an input current detection circuit for detecting; and a third switch that is provided on a power line of the control means, is on-controlled by the input current detection circuit, and is off-controlled by the control means . 2. The energy saving control according to claim 1, wherein the first current measuring means is connected to the input current detecting circuit and the control means, and the second current measuring means is shared with the first current measuring means as one current measuring means. Terminal device. The energy-saving control terminal device according to claim 1, wherein the input current detection circuit performs full-wave rectification on the detected current with a bridge diode and a capacitor, and turns on the third switch with the full-wave rectification output . The energy-saving control terminal device according to claim 1 or 2, wherein the control means performs on / off control of the second switch based on the magnitude of the current value detected by the first current measuring means . The energy saving control terminal device according to any one of claims 1 to 3, wherein the control means controls the third switch to be turned off based on the magnitude of the current value detected by the first current measuring means . 5. The control unit according to claim 1, wherein the control unit is connected to the human sensor and controls the second switch to be turned off immediately after the absence of the output signal from the human sensor or after a predetermined time has elapsed. energy-saving control terminal according to. The control means is connected to the signal output means for turning off the local switch of the electrical equipment and the human sensor, and the signal output is output immediately after it is determined from the output signal of the human sensor that the absence is present or when it continues for a predetermined time or more. The energy-saving control terminal device according to any one of claims 1 to 6, wherein a local switch of the electric device is turned off by outputting from the means . The energy saving control terminal device according to claim 7, wherein the signal output means uses infrared rays . The energy-saving control terminal device according to claim 7 or 8, wherein the signal output communication means is connected to the control means using a cable . The energy-saving control terminal device according to any one of claims 6 to 9 , wherein the human sensor is connected to the control means using a cable . A communication terminal connected in parallel with the commercial power supply and adding data communicated with the outside to the power line; and a communication means connected to the control means and receiving a command from the communication terminal, the control means based on the command The energy-saving control terminal device according to any one of claims 1 to 10, wherein setting of a predetermined time, a predetermined level or the like or control of an electric device is performed . 12. The energy-saving control terminal device according to claim 11 , wherein the communication means uses power line communication . The energy-saving control terminal device according to any one of claims 1 to 12, wherein at least one of the current measuring means uses CT . At least one energy-saving control terminal equipment according to any one of claims 1 to use a relay switch 13 of the second switch or the third switch.

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