KR200183306Y1 - Ups for long life battery and energysaving - Google Patents

Abstract

The UPS for prolonging battery life and saving power according to the present invention normally supplies stable power through voltage adjustment, but when the power connector is removed due to a power failure or user's carelessness, the supply of commercial AC power is interrupted. By providing power to an information processing device such as a computer and backing up the working environment of the information processing device, it is possible to prevent the loss of working data due to unexpected power supply interruption, and also to function as a UPS or an AVR. By allowing each device to perform its own functions separately, the AVR output is supplied only to devices that do not require UPS functions, and the UPS and AVR outputs are supplied to devices that require both UPS and AVR functions. UPS can extend backup time of power outage, and also connect power cord. The device is configured to be turned on immediately so that it can be operated conveniently by deleting the separate power switch, and the green mode function that enables variable control is added to save energy according to the use of the load.

Description

UPS for LONG LIFE BATTERY AND ENERGYSAVING}

The present invention relates to a UPS for prolonging battery life and power saving for emergency work environment backup. More specifically, it provides a stable power supply through voltage adjustment during normal operation, and then removes the power connector due to power failure or user's carelessness. When the supply is interrupted, the battery is supplied with power to an information processing device such as a personal computer, and at the same time, the working environment of the information processing device is backed up to prevent the loss of working data due to unexpected power supply interruption. A UPS for extended battery life and power savings.

In general, in the case of medium and large information processing devices, when the power supply is interrupted such as a power failure, the data of the uninterrupted power supply (hereinafter referred to as a UPS) is supplied so that working data is lost during an emergency such as a power failure. I am preparing for a problem.

That is, in general, the computer stores the working data in the RAM, so if the power supply is interrupted during the work, many data in the work disappear, and there is no way to restore the data, so it is inconvenient to rework. There is this. Therefore, in computer systems that perform important tasks such as large computers, an uninterruptible power supply (UPS) is installed so that the computer can be supplied with power even when the power supply from the power company is interrupted.

On the other hand, even in a personal computer (PC), the need for a UPS to cope with unforeseen accidents due to a power outage during work is the same, but the conventional UPS is expensive and bulky and requires a separate installation space is not easily used However, in recent years, due to the rapid spread of personal computers, the necessity and utilization of the above-mentioned UPS are increasing in offices and homes.

In addition, the AVR (Automatic Voltage Regulator) is a device that constantly outputs irregular voltage caused by the change of the input voltage. It is mainly used with the UPS, and thus the power failure compensation function and the voltage regulation function are used simultaneously. Various products having the functions of the UPS and the AVR are being developed.

1 is a block diagram of a UPS for extending battery life and power saving according to the prior art, Figure 2 is an external view showing the input and output terminals of the UPS for extending battery life and power saving according to the prior art.

As shown in FIG. 1, a UPS for extending battery life and saving power according to the related art includes an A / D converter 140 for converting a commercial AC power into a DC, and converting the DC power into AC power and supplying the load to a load. A D / A inverter 170, a charger 150 for converting the commercial power into a direct current to charge a battery (BATT), a DC-DC converter 160 for maintaining a constant voltage, and the D / A inverter In case of abnormality or overload, the synchronous transfer switch unit 180 and the input power are selectively applied to the external system using the AC power of the commercial AC power or the D / A inverter 170 as the output AC power. The CPU 100 monitors and controls the operation of the synchronous transfer switch unit 180. In the drawing, reference numeral 110 denotes a front panel for displaying a battery charging state and a power supply state, 100 'is a power switch, 130 and 190 are noise filters, and D is a diode.

In addition, as shown in Figure 2, the UPS for extending battery life and power saving according to the prior art has a plurality of output terminals for outputting the stabilized power through the input terminal 10 and the device for the input of commercial AC power ( 11) is provided.

Hereinafter, the operation of the UPS for prolonging battery life and saving power will be described.

First, when the power switch 100 'is turned on by the user, the commercial AC power input through the input terminal 10 is converted into the DC power from the A / D converter 140 in the normal operation, which is the charger 150. Charge a plurality of batteries (BATT) provided in the). In addition, the DC power of the A / D converter 140 is converted back to the AC power from the D / A inverter 170 and applied to an external system through the synchronous transfer switch unit 180 and the plurality of output terminals 11. do. At this time, the DC-DC converter 160 adjusts the low voltage and the overvoltage step by step to uniformly output the irregular voltage caused by the variation of the input voltage.

In the above state, when commercial AC power is outage, the DC power of the battery BAT charged with the predetermined voltage passes through the DC-DC converter 160 and the diode D, and then in the D / A inverter 170. By being converted into an AC power source and applied to an external system through the synchronous transfer switch unit 180, the external system can operate stably despite the power failure.

When the commercial AC power is applied again during this operation, the charger 150 again charges the battery BATT.

In addition, when an abnormality occurs in the D / A inverter 170, the CPU 100 detects this and bypasses the commercial AC power supply to the external system directly by the switching operation of the synchronous transfer switch unit 180. In this case, the user may recognize that an abnormality occurs by viewing the battery state on the front panel 110.

However, according to the prior art, for example, a single computer system includes a computer main body, a monitor, a printer, a digitizer, a hub, a plotter, an external modem, and the like, which requires power compensation during power failure. On the other hand, the irregular power supply has weak equipment, so the UPS and AVR functions can be used together, which means that the UPS and the AVR do not have to be purchased separately. Each function cannot be performed separately for a peripheral device that requires only the UPS, and the output power of the UPS and the AVR is simultaneously supplied to all peripheral devices including the device that do not require the UPS function. There was a problem.

Therefore, the present invention has been devised to solve the above problems, and normally, when supplying stable power through voltage adjustment, when power supply is removed due to power failure or carelessness of the user, the supply of commercial AC power is stopped. By allowing power to be applied to an information processing device such as a personal computer by a battery, and to backing up the working environment of the information processing device, it is possible to prevent work data from being lost due to an unexpected power supply interruption, and also to function of a UPS. Alternatively, each function can be performed separately for peripheral devices that need only the functions of AVR. By supplying only AVR output to devices that do not require UPS functions, UPS and AVR are required for devices that require both UPS and AVR functions. A battery that allows the UPS to extend its backup time by supplying the output of the The purpose is to provide a UPS for extended life and power saving.

In addition, by connecting the power cord, the device is configured to turn on immediately so that a separate power switch can be deleted for convenient operation, and a green mode function capable of variable control is added to save energy according to the use of a load. Another purpose is to provide a UPS for extended battery life and power saving.

1 is a block diagram of a UPS for extending battery life and saving power according to the prior art.

Figure 2 is an external view showing the input and output terminals of the UPS for extending battery life and power saving according to the prior art.

3 is a block diagram of a UPS for extending battery life and saving power according to the present invention.

Figure 4 is an external view showing the input and output terminals of the UPS for extending battery life and power saving according to the present invention.

5 is a front view of the UPS for extending battery life and power saving according to the present invention.

Figure 6 is a detailed circuit diagram showing an embodiment of the power input detection unit of the present invention.

<Explanation of symbols for main parts of the drawings>

21: UPS output terminal 22: AVR output terminal

100: CPU 140: A / D converter

150: charger 160: DC-DC converter

170: D / A inverter 180: synchronous transfer switch

200: power failure detection unit 210: relay switch

220: green mode control unit 221, 222: on / off switch

223: keypad 230: power input detection unit

BATT: Battery

In order to achieve the above object, the present invention provides an A / D converter for converting a commercial AC power into a DC, a D / A inverter for converting the DC power into an AC power and supplying it to a load, and directing the commercial power. A DC-DC converter for maintaining a constant voltage, and a commercial AC power supply or an AC power supply of a D / A inverter in preparation for an abnormality or an overload of the D / A inverter. In the UPS comprising a synchronous transfer switch unit for selectively applying to an external system and a CPU to monitor the input power to control the operation of the synchronous transfer switch unit, by detecting the presence of power failure of the input power supply and applying it to the CPU A power input detection unit for enabling a function and a UPS output terminal and an AVR output terminal of the output of the synchronous transfer switch unit, respectively; The controller may control the green mode operation power by a user's operation and a relay switch controlled on / off by the CPU, a power input detection unit for enabling an autostart function by detecting input power and applying the power to the CPU. Is applied to the CPU to adjust the output voltage of the D / A inverter within the set operating range is provided with a green mode control unit for saving energy.

When a power failure state is detected from the power failure presence detection unit, the relay switch is turned off under the control of the CPU to supply power only to a load connected to the UPS output terminal without supplying power to the load connected to the AVR output terminal. .

The power input detection unit is configured to rectify the input power through a plurality of diodes, and to stabilize and apply the rectified power to the CPU through a resistor and a capacitor.

The green mode adjusting unit includes an on / off switch for turning on / off the green mode function and a keypad for setting an operating range of the green mode according to the capacity of the load.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the subject innovation will be described in detail.

3 is a block diagram of a UPS for extending battery life and power saving according to the present invention, Figure 4 is an external view showing the input and output terminals of the UPS for extending battery life and power saving according to the present invention.

As shown in FIG. 3, an A / D converter 140 converting a commercial AC power into a DC, a D / A inverter 170 converting the DC power into AC power and supplying it to a load, and the commercial power Is converted to a direct current to charge the battery (BATT), the DC-DC converter 160 for maintaining a constant voltage, and the D / A inverter 170 in case of abnormal or overload commercial use By operating the AC power or the AC power of the D / A inverter 170 as an output AC power, the synchronous transfer switch unit 180 and an input power are selectively monitored to control the operation of the synchronous transfer switch unit 180. The configuration of the CPU 100 to control is the same as described through the prior art.

However, according to the present invention, the UPS output terminal 21 and the AVR output terminal during the output of the power failure detection unit 200 and the output of the synchronous transfer switch unit 180 which detects the power supply of the input power and applies it to the CPU 100. 22), and the AVR output terminal 22 is provided with a relay switch 210 that is controlled on / off by the CPU 100. Accordingly, when a power failure state is detected from the power failure presence detection unit 200, the relay switch 210 is turned off under the control of the CPU 210, thereby not supplying power to the load connected to the AVR output terminal 22. Power is supplied only to the load connected to the terminal 21.

In addition, the input power is detected and applied to the CPU 100 to control the green mode operation power by the power input detection unit 230 and the user's manipulation to enable the auto start function, and the state is transmitted to the CPU 100. It is further provided with a green mode control unit 220 for saving energy by adjusting the output voltage of the D / A inverter 170 within the set operating range.

In FIG. 3, reference numeral 110 denotes a front panel for displaying a charging state and a power supply state of a battery, 130 and 190 are noise filters, and D is a diode, and in FIG. 2, 10 is an input of a commercial AC power source. Input terminal for.

5 is a view showing a front portion of the UPS for extending battery life and power saving according to the present invention, Figure 6 is a detailed circuit diagram showing an embodiment of the power input detection unit of the present invention.

As shown, the power input detection unit 230 rectifies the input power through a plurality of diodes (D1 ~ D4), stabilizes the rectified power through the resistor (R) and the capacitor (C1) to the CPU ( 100).

The green mode controller 220 includes an on / off switch 221 for turning on / off the green mode function, and a keypad 223 for setting an operating range of the green mode according to the capacity of a load.

The operation of the present invention configured as described above will be described in more detail.

First, in the present invention, there is no need to operate a separate on / off switch to operate the device, and it is operated immediately by connecting the power cord of the device. That is, when the power cord is connected, the power input state at this time is detected by the power input detector 230 and applied to the CPU 100. Therefore, the CPU 100 enables the auto start function by supplying the operating power to each unit. 6 is a detailed circuit diagram showing an embodiment of the power input detection unit of the present invention as described above.

Thereafter, the commercial AC power input through the input terminal 10 is converted from the A / D converter 140 to the DC power during normal operation, which charges a plurality of batteries BATT included in the charger 150. . In addition, the DC power of the A / D converter 140 is converted back to the AC power from the D / A inverter 170 and applied to an external system through the synchronous transfer switch unit 180 and the plurality of output terminals 11. do. At this time, the DC-DC converter 160 adjusts the low voltage and the overvoltage step by step to uniformly output the irregular voltage caused by the variation of the input voltage.

In the above state, when commercial AC power is outage, the DC power of the battery BAT charged with the predetermined voltage passes through the DC-DC converter 160 and the diode D, and then in the D / A inverter 170. By being converted into an AC power source and applied to an external system through the synchronous transfer switch unit 180, the external system can operate stably despite the power failure.

Here, the present invention detects the presence or absence of power failure of the input power from the power failure detection unit 200 and applies to the CPU 100, the CPU 100 is connected to the AVR output terminal 22 by turning off the relay switch 210. The power is supplied only to the load connected to the UPS output terminal 21 without supplying power to the load.

Therefore, each function can be performed separately for peripheral devices that need only the functions of UPS or AVR. In addition, only the AVR output is supplied to the devices that do not require UPS function, and both functions of UPS and AVR are required. By supplying the outputs of the UPS and AVR together, the UPS can significantly extend the outage backup time.

When the commercial AC power is applied again during this operation, the charger 150 again charges the battery BATT. In addition, when an abnormality occurs in the D / A inverter 170, the CPU 100 detects this and bypasses the commercial AC power supply to the external system directly by the switching operation of the synchronous transfer switch unit 180. In this case, as described above, the user may recognize that an abnormality occurs by viewing the battery state on the front panel 110.

Meanwhile, during operation as described above, the green mode operation power is controlled by the user's operation using the green mode adjusting unit 220, and the state is applied to the CPU 100 to apply the state to the D / A. Energy is saved by adjusting the output voltage of the inverter 170.

That is, as shown in FIG. 5, the green mode function is turned on / off using the on / off switch 221, and the keypad 223 is adjusted to set the operation range of the green mode according to the capacity of the load.

Therefore, the existing energy-saving UPS equipment was fixed and only operated under a constant load condition. For example, in the case of 1KVA UPS, the green mode state is operated at about 100W or less. The green mode state means that the inverter is stopped, and the device that requires 80 ~ 90W power consumption is not serviced by the UPS inverter. can not do it. In the present invention, by improving the uniform fixed green mode function, an effective control is possible by varying the operating range of the green mode.

As described above, according to the UPS for prolonging battery life and saving power of the present invention, the peripheral devices requiring only the function of the UPS or the function of the AVR can be separately performed, and do not require the UPS function. By supplying only the AVR output to the unused devices and supplying the outputs of the UPS and AVR to the devices that require both the functions of the UPS and the AVR, the UPS can significantly extend the power failure backup time.

In addition, when the power cord is connected, the device is configured to be turned on immediately so that a separate power switch can be deleted for convenient operation, and a green mode function capable of variable control is added to save energy according to the use of a load. There are other effects as well.

Claims (4)

A / D converter 140 for converting commercial AC power to DC, D / A inverter 170 for converting DC power to AC power and supplying the load, and converting the commercial power to DC Charger 150 to charge, DC-DC converter 160 for maintaining a constant voltage, and commercial AC power or D / A inverter (in preparation for abnormal or overload of the D / A inverter 170) Synchronous transfer switch unit 180 for selectively applying the AC power of 170 as an output AC power supply to an external system, and the CPU 100 for controlling the operation of the synchronous transfer switch unit 180 by monitoring the input power. For UPS, The UPS output terminal 21 and the AVR output terminal 22 of the output of the power failure detection unit 200 and the output of the synchronous transfer switch unit 180 which detect the presence or absence of the power supply to the CPU 100, respectively The AVR output terminal 22 includes a relay switch 210 controlled on / off by the CPU 100 and a power supply for detecting an input power and applying the input power to the CPU 100 to enable an auto start function. By controlling the green mode operation power by the input detection unit 230 and the user's operation, by applying this state to the CPU 100 to adjust the output voltage of the D / A inverter 170 within the set operating range UPS for extending battery life and power savings, characterized in that it comprises a green mode control unit 220 for reducing energy. The method of claim 1, When a power failure state is detected from the power failure presence detection unit 200, the relay switch 210 is turned off under the control of the CPU 210, thereby not supplying power to the load connected to the AVR output terminal 22. UPS for extended battery life and power savings, characterized in that to supply power only to the load connected to the UPS output terminal (21). The method of claim 1, The power input detector 230 rectifies the input power through the plurality of diodes D1 to D4, stabilizes the rectified power through the resistor R and the capacitor C1, and applies the same to the CPU 100. UPS for battery life extension and power saving, characterized in that the configuration. The method of claim 1, The green mode adjusting unit 220 is characterized by consisting of an on / off switch 221 for turning on / off the green mode function, and a keypad 223 for setting the operating range of the green mode according to the capacity of the load. UPS for extended battery life and power savings.