JPS60162425A - Electric device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to electrical equipment such as copying machines.

[Background technology]

Electrical equipment for office processing (facsimiles, copiers, word scanners, etc.) and automatic control equipment in factories (industrial robots) use electronic circuits, Tanabata lamps, theta (thermal heads), etc. The load is being turned on and off intermittently,
The input current seen from the input side of the device is constant and exhibits a complex waveform that often includes peak values.

FIGS. 1 and 2 are conventional examples shown for the purpose of explaining the situation in detail. That is, the electronic circuit section fl+ for device control is connected from the commercial power source E via the main power switch SWM.
is connected and the electric device M is in a standby state. On the other hand, intermittent loads (2
) is a stabilized power supply (3) for switch generators, etc.
Powered through. Further, the stabilized power supply (3) is an intermittent switch 5WCkf'rL that is turned on and off intermittently by a signal from the electronic circuit section (1).

Power is supplied from the output side of the main power switch SWM.

This intermittent switch SWC is sometimes inserted into the output side of the stabilized power supply (3), and some intermittent loads (2)
For example, if a heater or the like is connected directly to the output side of the intermittent switch SWc without going through the stabilized power supply section (3),
Usually, it is converted to 2V, 24V, etc.

However, when the electrical equipment M shifts from the standby state to the operating state, K is a signal from the outside, such as a push button switch or a telephone line reception, and when the intermittent switch SWC is turned on (Pi is sent, the intermittent load is switched off). (2) operates.When the intermittent switch SWC is turned off, the intermittent switch '(2)
is turned off and goes into standby mode again. The input current of this electrical equipment M is shown in Figure 2. That is, the input current IM1 of the electric IA device M is composed of the current IC1 during standby and the current IP consumed by the intermittent load (2), and generally, the current IC during standby, < the negative 4'L4J current 11P between, The input current of the electrical equipment Δ1 is IM Id intermittent switch SW
The input wire is connected to an intermittent switch S because it increases rapidly at the time of oscillation of C, and its peak value can reach 30A or more.
W■ A thick electric wire was required in consideration of the current when turned on.

Furthermore, when the power supply impedance is high, a sudden voltage drop may occur, causing surrounding electrical equipment to malfunction. Furthermore, the stabilized power supply (3) must have a large capacity that can withstand the intermittent load current IP1 even though it only operates intermittently, and it must also have a large capacity that can withstand the intermittent load current IP1. This had the disadvantage that it lacked versatility as a 200V dedicated device because it could not be used with a +5A branch circuit in +00V indoor wiring. Furthermore, it has the disadvantage that it cannot function at all due to an instantaneous voltage drop in the commercial power supply or a momentary power outage.

[Purpose of originating IJJ]

The present invention was made in view of two drawbacks, and its purpose is to apply electrical equipment for office processing (facsimile machines, copying machines, word processors, etc.) and automatic control in factories. The peak value of the input current of an intermittent load that is turned on and off intermittently, such as equipment (industrial robots), is reduced to less than the peak of the conventional input current (a) and flattened, making it possible to operate with a small-capacity power supply. Our goal is to provide the best electrical equipment.

[Disclosure of the invention]

[Embodiment 1] FIG. 3 shows Embodiment 1 of the present invention, in which the commercial power supply EK 1 is Connect the electronic circuit section (1) for device control, which is the circuit section of A storage battery (5) as a power storage element is connected to the output side of the circuit section (4), and the storage battery (6) K is connected to an intermittent load (2) via an intermittent switch SWC controlled by the electronic circuit section [1].
) are connected, and these charging circuit section (4), storage battery (
5), intermittent 1 load, load +21! The second circuit section is configured by: Further, the electronic circuit section [1] is connected to the storage battery (5) via a power outage compensation switch SW3 and a diode D for preventing backflow, as required. Therefore, in the electrical equipment M of the present invention, the stabilizing power source is performed by the charging circuit section (4) and the storage battery (5). First, when the main power switch SWM connected to the commercial power supply E is turned on, power is supplied to the electronic circuit +INK via the charge completion switch sW1, and the overcharge prevention switch sw2 is supplied regardless of whether the main power switch swM is on or off. Power is supplied to the charging circuit section (4) via the charging circuit section (4), and the storage battery (5
), that is, the electric device M goes into a standby state. Now, with the external communication 8, for example, the 121J intermittent switch SWC is connected to the electronic circuit section (1) using a push button switch.
When turned on under the control of IIJ, intermittent load (2) K current IL
, flows. At this time, the current IT of the intermittent load (2) is 11
As shown in Fig. 7, the discharge current IB from the storage battery (6)
, and the supply ICh from the charging circuit section (4).

are synthesized! : It has become. Now, when the above-mentioned external communication is terminated and the intermittent switch SWC is turned off, a current IOh flows through the storage battery (5) and charges the discharged battery. In the present invention, the power consumed by the intermittent load (2) is shared between the storage battery (5) and the charging circuit (4).

Here, the relationship conditions between the intermittent load (2) capacity, the storage battery (5) capacity, and the output capacity of the charging circuit (4) are as follows: 1) Intermittent load (2) capacity ≦ storage battery (5) + charging circuit (4) ) Output capacity (2) Charging circuit section (4) Output capacity (Intermittent load (2) capacity) By setting the conditions to satisfy two points, the power supply to the intermittent load (2) from the condition of 1) above is reduced. The output of the storage battery (5) and the charging circuit section (4) can be sufficient, and from the condition 2) above, the input current of the charging circuit section (4) is 1 rL.
A value smaller than the current equivalent of the ffU intermittent load (2) (value calculated on the primary side) is sufficient, and as described above < IT
J1 = ICh, + IB.

However, while the intermittent load (2) is turned off, the circuit section (4) is charged.
), the storage battery (5) is charged with the output current ICh, and when the intermittent load (2) is on, the closing current I is ICh, +IB1.
The total input current I for the intermittent load (2)
If the efficiency of the charging circuit section (4) is ignored, P is the output current of the charging circuit section (4), which is equal to or greater than 1 chl 4 - the target value (primary side converted value). Therefore, intermittent load (2
) Peak current IPXl-1 during operation: Part of the intermittent load (2) current is supplied from the storage battery (5), and the total input current rbi of the electrical equipment M is flattened. , as shown in FIG. 4, it is very unlikely that a large current as shown in FIG. 2 will occur.

Note that FIG. 5 shows that a constant current is output from the charging circuit section (4) regardless of whether the intermittent load (2) is on or off. Furthermore, the on time and rate off time of the intermittent load (2) vary, and although the storage battery (6) may be completely discharged in one use, there may be cases where a residual amount remains. Therefore, even if the capacity of KW@Battery (5) is selected so that the remaining capacity is low and there is good luck, the capacity of the storage battery (5) will be in a fully charged state when the main power switch SWM is turned on as shown in Figure 8. When the storage battery (6) is opened during use, the storage battery (6) discharges and gradually becomes M.
The capacity of the battery (5) decreases. Therefore, the actual KM battery (6
) and the capacity of the charging circuit section (4), it is necessary to appropriately select them in consideration of the on/off time ratio of the intermittent load (2). and a storage battery (6
Supplementary charging can be performed on the charging U electrical equipment of ) when the main power switch 3WM of 1 is turned off (for example, at night). The above-mentioned input current IM of 1 to the electrical equipment of the present invention when charging is performed at night as described above has a theoretical value as shown in FIG. 9 when the efficiency of the charging circuit section (4) etc. is ignored. A part of the operating power of the intermittent load (2) is supplied by the storage battery (6) K charged during the night, resulting in an input current ■M.

The peak value of . can be set below the average input current IAVE.

Also, in the case of daytime use, depending on the frequency of use, the same effect as described above can be expected, and since power is supplied from the storage battery (5) and charging circuit section (4) to the intermittent load (2), the electrical equipment M The peak value disappears from the input current IM.

Now, the charging completion switch SW1, which is provided as required, remains off until the storage battery (6) is charged to a certain amount or more.
Charge over a certain amount is detected (!: something that turns on,
This is to prevent the intermittent load (2) from turning on until the electronic circuit section (1) receives power from the commercial power source E and starts to operate, even if an external signal is received. be. It is possible to prevent the intermittent load (2) from malfunctioning due to insufficient charge of the pick-up storage battery (5). In addition, the overcharge prevention switch SW2 is turned off when the intermittent switch SWC is off for a long time, when the on time is short, or when the amount of charge is too large for the amount of battery discharge, and the storage battery (5) is turned off to prevent overcharging. This is something to prevent it from getting damaged. In addition, the power outage compensation switch SW3 is turned on when the commercial power source E has a power outage, and compensates by supplying power to the electronic circuit section (1) from the storage battery (6) for the effective time of the storage battery (5), allowing the operation of the electrical equipment M. Give an example.

[Example 2] FIG. 10 shows Example 2, in which two charging circuits (4a) and (4b) are used as the charging circuit section (4).
) is provided, and a 1-circuit, 2-contact changeover switch is used as the main power switch SWM, and the electronic circuit section (1) is connected to the A contact side via the charging completion switch SW1, which is connected as necessary. Overcharge prevention switch SW2 if necessary. Connect the first charging circuit (4a) via
The b contact side is connected to a second charging circuit (4b
), so that charging circuits (4a) and (4b) can be switched according to switching of the main power switch SWM, and when the main power switch SWM is on the a contact side, the charging circuit ( 4a) is connected to the commercial power source E, the electronic circuit section fl+ is connected to the commercial power source E, and the third
The operation is exactly the same as the embodiment shown in the figure.

Next, when the main power switch SWM is connected to the b side (for example, when the device is not in operation, such as at night), the storage battery (6) is charged by the charging circuit (4b) having a different capacity from that during normal operation. Here, by differentiating the charging current of the storage battery (6) during operation and non-operation and charging slowly during non-operation, the storage battery (I5) can be protected from rapid charging. By interlocking the switching of the main power switch SWM and the intermittent switch SWC, the rapid charging state can be set only during operation, and the storage battery (5) can be protected in the same way as described above.

〔Effect of the invention〕

The present invention includes a first circuit section connected to the output end side of a main power switch connected to a power source and always operating, and a power storage element that is charged by at least the charging circuit section regardless of whether the main power switch is on or off. The output capacity of the charging circuit unit is made smaller than the capacity of the intermittent load, and the relationship between the sum of the capacity of the electricity storage element and the output capacity of the charging circuit and the capacity of the intermittent load is , since the added value ≧ the intermittent load capacity, even when an intermittent load is operating, the input current of the electrical equipment has no peak value and becomes a flattened current, which has the effect of making the input wire thinner. There is no sudden drop in power supply voltage, which prevents surrounding electrical equipment from malfunctioning.Furthermore, surges and noise generated by turning on and off the intermittent switch are absorbed by the stored electric waves, so noise countermeasures can be reduced. In addition, by selecting the voltage of the storage element to an appropriate value, the stabilized power supply that was conventionally used is no longer necessary, and high frequency noise sources can be reduced, and furthermore, it could not be used with the conventional +00V l 5a branch. This has the effect of increasing versatility by making the device usable, and it can also be operated even during instantaneous voltage drops or short power outages, and the electrical capacity of the charging circuit is limited to the capacity to charge the storage element. This has the effect of being smaller, lighter, and cheaper than conventional stabilized power supplies.

[Brief explanation of the drawing]

Fig. 1 is a circuit block diagram of the conventional example, Fig. 2 is an explanatory diagram of the same operation as above, Fig. 3 is a circuit block diagram of an embodiment of the present invention, Figs. Figure 10 is a circuit block diagram of an embodiment of the present invention, +11 is an electronic circuit section;
(2) is an intermittent load, (4) is a charging circuit, (6) is a storage battery, SWM key power switch, and SWC is an intermittent switch. Yamu m1 Shuiwabin 9 Σ Mr. Commissioner of the Japan Patent Office 1. Indication of the case 1982 Patent Application No. 17823 2, Name of the invention Electrical equipment 3, Person making the amendment Relationship to the case Patent applicant address 1048 Kadoma in bold, Kadoma City, Osaka Prefecture Name (
583) Matsushita Electric Works Co., Ltd. Representative Iku Kobayashi 4, Attorney's specification and drawing 8, Contents of amendment as shown in attached sheet Application number for revised specification Patent Application No. 17823-1981 1 Name of invention Electrical equipment 2 Patent claim Electricity is a device with a range of . 2. The electric device according to claim 1, wherein the storage battery is charged by a photoelectric circuit. 3. Detailed Description of the Invention Technical Field 1 The present invention relates to electrical equipment such as copying machines. [Background technology] Electrical equipment for office processing (such as copying machines, word processors, etc.) and automatic control equipment in factories (industrial robots) have electronic circuits that are constantly in operation and electronic circuits that are intermittently activated. It generally consists of loads such as motors, lamps, and heaters (thermal heads) that are turned on and off.
The input current seen from the input side of a civilian appliance is not constant, but has a complex waveform that includes peak values. f:tS Figure 1 and Figure 2 are conventional examples shown to explain the situation during this time in detail. That is, the electronic circuit unit 1 for device control is connected from the commercial power source E via the power switch SWM, and the electric device M1. is in standby state. On the other hand, intermittent loads 2 such as motors, lamps, and heaters (thermal drives) and stabilized power supplies 3 such as switching regulators are powered via an intermittent switch SWc that is turned on and off intermittently by signals from the electronic circuit section 1. Power is supplied from the output side of the 6-inch SWh. This intermittent switch SWC is sometimes inserted on the output side of the stabilized power supply 3, and some intermittent loads 2, such as heaters, are connected directly to the output side of the intermittent switch SWc without going through the stabilized power supply 3. Sometimes it is connected to. In addition, the electronic circuit section 1 and the stabilized power supply 3 are AClooV or 200V, which is a commercial power supply, and DC5■, 12
V, 24■! '1. : Usually converted. Then, the intermittent switch SW is turned on by an external signal, such as a push button switch or a telephone line reception.
When the ON command signal is immediately sent, the intermittent load 2 is operated and the electrical equipment M shifts from the standby state to the operating state.When the intermittent switch SWc is turned off, the intermittent load 2 is turned off and returns to the standby state. The input current of the electrical equipment M at this time is shown in FIG. In other words, the input current Icl of the electrical equipment M when it is on standby is 1 pl of the intermittent load 2 current, and the input current I of the electrical equipment M is
□ increases rapidly when the intermittent switch SWc is turned on, and its peak value can reach over 30A, so the input wire needed to be thick enough to handle the current when the intermittent switch SWc was turned on. . Furthermore, if the power supply impedance is high, a sudden voltage drop may occur, causing surrounding electrical equipment to malfunction. Furthermore, even though the stabilized power supply 3 operates only intermittently, it must be of a large capacity that can withstand the load current 11) of the intermittent load 2, and furthermore, it must comply with electrical equipment technical standards and internal wiring regulations. General 100V indoor wiring specified in
0) It had the disadvantage that it was a dedicated device and lacked IT usability. By the way, the electrical equipment of the present invention includes a charging circuit section connected to a commercial power supply like a civilian appliance, a storage battery that is photoelectrically powered by the charging circuit section, and a circuit section connected to the storage battery. : Conventionally, there are emergency power supply devices as shown in Figures 3 and 4. In other words, in the device shown in Figure 3, when the commercial power source E is on, the storage battery 5' is charged through the charging circuit 4', and in the event of a power outage, the storage battery 5' is charged. Then, relay RY detects a power outage and relay contact r switches to the intermittent load 2° side, and power is supplied from the storage battery 5' to the intermittent load 2'.In this case, the charging capacity of the charging circuit section 4' is intermittent. The capacity of the intermittent load 2' is small compared to the capacity of the load 2', but the operation of the intermittent load 2' is limited to when the charging circuit part 4° does not operate due to a power outage, etc. It is fundamentally different from electrical equipment that operates under the power of the commercial power source E. In the Mako 1j S4 device, even when the commercial power source E is energized, there is a This is the so-called 70-ting system in which the load 2' is operated intermittently at all times, but in this case the intermittent load 2' is operated at all times, so the capacity of the charging circuit section 4' is equal to the capacity for operating the load. This is the sum of the capacity to charge the storage battery 5゛, and of course the charging circuit section 4゛ and the intermittent load 2゛ are 8 amounts, so the input current cannot be made uniform by qt-ji! It is also the third
In both Figures 2 and 4, the intermittent load 2 is generally a continuously energized load, and the electrical equipment of the present invention, which flattens the input current, is basically a load that does not have a circuit section that operates intermittently. It was completely different. [Objective of the Invention 1] The present invention has been made in view of two points, and its purpose is to provide electrical equipment for office processing (facsimile,
Copying can be done using a word processor, etc.) or automatic control in the factory (
A small-capacity power supply that reduces and flattens the peak value of the input terminal of electrical equipment that has a circuit part that is turned on and off intermittently, such as industrial robots, to below the peak value of the conventional input terminal. The device must be enabled for operation. [Disclosure 1 of the Invention The present invention relates to an electrical device connected to a commercial power source E and having a ttSl and a second circuit section, the power switch SW,
and a first circuit section connected to a commercial power supply [-, through the power switch SWM, -1-? IX source switch S
A charging circuit unit 4 that is supplied with power from the commercial power source E regardless of whether W, is on or off, a storage battery 5 that is charged by the charging circuit unit 4, and an intermittent switch that is intermittently turned on and off when the first circuit unit is operated. and a second circuit section connected to the storage battery 5 via SWc, and is characterized in that the output capacity of the charging circuit section 4 is set smaller than the load capacity of the second circuit section. be. The electrical equipment of the present invention will be explained below using examples. Figure 5 shows a circuit block diagram of this embodiment, and in this embodiment, the commercial power supply E is connected to the power switch SWh.
An electronic circuit section 1 for device control, which is a circuit section of ffi:l, is connected via. The mode is the same as the conventional example shown in Fig. 1, but the charging completion switch SWl is replaced by the power switch S described above.
W? 1 and the electronic circuit section 1 as necessary. Further, the charging circuit section 4 is connected to the commercial power source E via an overcharge prevention switch SW2 provided as necessary. An M battery 5 is connected to the output side of this charging circuit section 4,
Furthermore, an intermittent load 2, which is a second circuit section, is connected to the storage battery 5 via an intermittent switch SWc controlled by the electronic circuit section 1. Furthermore, a power outage compensation switch (?t switch/chi SW,
Connect it. In the electric device M of the present invention, the stabilized power source 3 shown in the conventional example is not used because the charging circuit section 4 and the storage battery 5 fulfill their functions. Here, the charging circuit section 4 has an overcharge detection function and a charge completion detection function 411 for the storage battery 5, and controls a charge completion switch SW1 and an overcharge prevention switch SW2 provided as necessary. Further, the power failure compensation switch SW3 is provided with power failure detection means for detecting a power failure of an appropriate commercial power source E, and is turned on when the means detects a power failure. Furthermore, in addition to the power switch S Vv 11, another power switch may be provided on the input side of the electrical equipment M. Next, the operation of this embodiment will be explained. First, power switch SW
When I turn on the electronic circuit section 1, the commercial type if! E is supplied with power via the power switch SWo and the charging completion switch SWl. On the other hand, irrespective of whether the power source SWM is on or off, power is constantly supplied to the charging circuit section 4 from the commercial power source E via the overcharge prevention switch SW2, and the storage battery 5 is charged by the output of the charging circuit section 4. Then, by turning on the power switch SWh, the electric device M enters a standby state. When an external signal, such as a turn-on signal from a pushbutton switch, is input to the electronic circuit section 1 in this standby state, the intermittent switch SWc is turned on under the control of the electronic circuit section 1, and the intermittent load 2 receives a current I.
L1 flows. At this time, the current Ill flowing through the intermittent load 2
As shown in FIG. 9, the discharge current IBI from the storage battery 5 and the 1ch supply from the charging circuit section 4 are combined.Now, the external signal mentioned above is released and the intermittent switch// When switch SWc is turned off, the storage battery 5 / photoelectric current 1 cl + flows and charges the discharged amount. This state is shown in Fig. 8. In other words, in the present invention, ■ 1 KIXF, consumed by one operation of load The storage battery 5 and the charging circuit section 4 share and take charge of the electric power.
(/l = 1) Intermittent load 2 capacity ≦ storage a5 capacity + charging circuit section 4 output capacity 2) charging circuit section 4 output capacity x intermittent load 2 capacity By setting the above conditions, the power supply to the intermittent load 2 can be sufficiently covered by the storage battery 5 and the output of the charging circuit section 4 based on the condition 1) above, and the input of the charging circuit section 4 can be sufficiently covered by the condition 2) above. The current needs to be smaller than the current equivalent of the intermittent load 2 (value converted to the negative side), and as described above, 11-+ = Ic1110IB. Then, while the intermittent load 2 is off, the storage battery 5 is charged with the output current Ic11 of the charging circuit section 4, and when the intermittent load 2 is on, the load current ILl is formed with Ich+ + Iel,
If the efficiency of the charging circuit section 4 is ignored, the total input current Ip+ to the charging circuit section 4 will never exceed the output current equivalent to 1 cJ of the charging circuit section 4 (value converted to the primary side). Therefore, the peak current 1p+ of the intermittent load 2 during operation is supplied by a portion of the current of the intermittent load 2 from the storage battery 5, and the total input current of the electrical equipment M is flattened as shown in FIG. As shown in FIG. 2, a large current as shown in FIG. 2 does not occur. The PIS 7 diagram shows that a constant current is output from the charging circuit section 4 regardless of whether the intermittent load 2 is on or off. Further, the on time and off time of the intermittent load 2 are different, and although there are cases where the storage battery 5 is completely discharged after one use, there are cases where a residual amount remains. Therefore, even if the capacity of the storage battery 5 is selected so that there is at least some remaining capacity,
As shown in FIG. 10, even if the capacity of the storage battery 5 is fully charged when the power switch SW is turned on, the capacity of the storage battery 5 gradually decreases as the storage battery 5 discharges over time of use. Therefore, when actually setting the capacity of the storage battery 5 and the capacity of the charging circuit section 4, it is necessary to consider the on/off time ratio of the intermittent load 2 and select them appropriately. The storage battery 5 is charged using the power switch SWM of the electrical equipment M.
It can be removed by performing supplementary charging when the battery is turned off (for example, at night). □The above-mentioned input current 11N of the electrical equipment M of the present invention, which is charged even when the electrical equipment M is not in use, has a theoretical value of the first
As shown in Figure 1, part of the operating power of the intermittent load 2 is supplied by the storage battery 5 charged during the off period of the electrical equipment M (for example, at night), so that the peak value of the input current IMI is the average Input current ■Can be set to less than A1. In addition, even during periods when electrical equipment M is used, such as during the day, the same effect as described above may be expected depending on the frequency of use.
Further, since power is supplied to the intermittent load 2 from the storage battery 5 and the charging circuit section 4, the input current 1111 of the electrical equipment M does not have a very large peak value. Now, the charging completion switch SW1, which is provided as necessary, remains off until the storage battery 5 is charged to a certain amount or more, and turns on when the charging more than a certain amount is detected. Even if an external signal is received before it receives its own power supply and operates, it will not receive any external signal (11, this is to prevent the intermittent load 2 from being turned on before charging is completed. In other words, the photoelectric iL of the storage battery 5 is insufficient. It is possible to prevent malfunction of intermittent load 2 due to overcharging prevention switch SW.
2 is used to prevent the storage battery 5 from being damaged by overcharging by turning off the intermittent switch SWc when the off time is long or the on time is short, that is, when the amount of charge is too large compared to the amount of discharge. be. In addition, the power outage compensation switch SW is turned on when the commercial power supply E is out of power, and the power supply for the electronic circuit section 1 is switched on from the storage battery 5.
Electrical equipment M
operation. Figure 12 shows this embodiment, in which two charging circuits 4a141+ are provided and the power switch SWo
When the power switch SWi is turned on to the on-side connection Aa, the on-side connection αa and the overcharge prevention switch SW2. The charging circuit 4a is connected to the commercial power source E via the electronic circuit section 1, and the electronic circuit section 1 is also connected to the commercial power source E, and the operation is exactly the same as that of the embodiment shown in FIG. Next, when the power switch SWo is connected to the off-side contact 1] (for example, when the device is not operating at night), the overcharging prevention switch S
The storage battery 4 is charged with W2□. Here, the storage battery 5 can be protected from overcharging due to rapid charging by differentiating the charging current of the storage battery 5 during operation and non-operation, and by charging slowly during non-operation. By interlocking the on/off operation of the power switch SW□ with the intermittent switch SWc, it is possible to enter the rapid charging state only during operation, and the storage battery 5 can be protected in the same manner as described above. [Effects of the Invention 1] The present invention consists of a power switch, a first circuit section connected to a commercial power supply via the power switch, and a power switch connected to the commercial power supply regardless of whether the power switch is on or off. A charging circuit unit that is supplied with power from a power source, a storage battery that is charged by the charging circuit unit, and a second storage battery that is connected to the storage battery through an intermittent switch that is turned on and off intermittently when the first circuit unit is operated. Since the output capacity of the charging circuit section is set smaller than the load capacity of the second circuit section, the storage battery can be constantly charged regardless of whether the power switch is on or off. Since the load current during the operation of the 152 circuit section can be borne by the storage battery, a very large peak value will not appear at the input terminal of the electric receptacle, and moreover, the charge current of the M battery to the charging circuit section will be reduced. and the input current for
Since the required input current value is the sum of the input currents of the first circuit section, the current value is a flattened value, and there is no need to consider the peak value as described above, so the input current value is the required input current value. This has the effect of allowing the side electric wire to be made thinner, and since the M battery is constantly charged as described above, even if the capacity of the storage battery decreases due to the operation of the second circuit section, the second circuit section will not operate. It is possible to supplementally charge the electric transmitter from time to time, prevent insufficient capacity from occurring when the electric transmitter is in use, and also eliminate the sudden drop in power supply voltage, prevent surrounding electric transmitters from malfunctioning, and prevent intermittent charging. Since the noise generated when the switch is turned on and off is absorbed by the storage battery, noise countermeasures can be reduced.Furthermore, by selecting the voltage of the storage battery to an appropriate value, the stabilized power source used in the past can be used. This eliminates the need for high-frequency noise sources and reduces the need for high-frequency noise sources.
It has the effect of increasing versatility as it can be used with devices that could not be used with the V15A branch, and it also has the effect of being smaller, lighter, and cheaper than conventional stabilized power supplies because the electric capacity of the charging circuit part is also small. play. 4. Brief description of the drawings 1.1 is a circuit block diagram of a conventional example, 2. is an explanation of the same operation as above, 1., 3. and 4. are respectively circuit block diagrams of different conventional examples, Figure f55. 1 is a circuit block diagram of Embodiment 1 of the present invention, FIGS. 6 to 11 are explanatory diagrams of the same operation as above, and FIG. 12 is a circuit block diagram of Embodiment 2 of the present invention, where 1 is an electronic circuit section, 21 :t: lft! 4 is a load, 4 is a charging circuit, 4a and 4b are charging circuits, 5 is a storage battery, SW is a power switch, and SWc is an intermittent switch. Agent Patent Attorney Ishi 1) Ai Nansho Figures 3 to 10 on page V have been revised as shown in the attached sheet, and Figures 11 and 12 have been added. Figure 3 left C; ≧ 4 Figure l: J し- -, J Figure 7 Kandentsu Boshu nt; L Figure 8 Sentence pattern f511 Yeong 1111th Atonement 1 o'clock A Chiku 12 Figure

Claims (2)

[Claims] (1) A constantly operating circuit section connected to the output end side of a main power switch connected to a power source, and a power storage element that is charged by at least the charging circuit section regardless of whether the main power switch is on or off. , and a circuit section of the power storage 2,
The output capacity of the charging circuit section is made smaller than the capacity of the intermittent load, and the relationship between the sum of the capacity of the electricity storage element, the output capacity of the charging circuit, and the capacity of the intermittent load is such that the sum ≧ the intermittent load capacity. Electrical equipment 〇 (2) The charging circuit section is configured with a first charging circuit and a second charging circuit, and the main power switch is configured with a 9J conversion switch with 1 circuit and 2 contacts, so that the main power switch is connected to the first circuit section. When the main power switch is disconnected from the first circuit side, the M electric element is charged by the first charging circuit.
2. The electric device according to claim 1, wherein the electrical storage element is charged by a second charging circuit having a capacity different from that of the second charging circuit.