KR200268699Y1 - Adapter-shaped compact apparatus for measureing electric energy - Google Patents

Abstract

Simple power and power measuring devices have been devised to measure the power (W) or power (kwh) of individual power-consumption devices such as televisions, computers, or refrigerators. The present invention is designed not only to compare the power displayed in the home appliances with the actual use, but also has a warning function in the case of overload and is designed to allow the user to measure the amount of power for a certain period of time. The present invention measures the current of the load by using an alternating current ammeter, calculates the power by calculating the measured current by a microprocess, calculates the amount of power by using a timer with a reset function, and the current flows over a predetermined value. It is designed to warn of this through a constant alarm. The current, power or amount of power is to be displayed on the LCD screen, if necessary.

The present invention compares the power displayed in the household electrical appliances with the actual power usage, and enables the user to improve the reliability of the electrical appliances used. It is possible to know whether it is overloaded by faulty light.

Description

Adapter-type simplified power measurement device {ADAPTER-SHAPED COMPACT APPARATUS FOR MEASUREING ELECTRIC ENERGY}

The present invention relates to the measurement of power and amount of power, and more specifically, a device for simply measuring the power consumption of household appliances intended for use by plugging into an outlet installed in a room. The present invention calculates the power and the amount of power through the calculation of the micro process by measuring the current flowing through the load.

Conventional devices for calculating the amount of power include the integrated power metering device provided by KEPCO, which is a device for measuring the power consumption of the entire building such as a home or a factory. The integrated power meter is not a device for measuring the individual power amount, and also has a problem that it is difficult to measure the power amount for a certain period of time desired by the user, and does not have a function of notifying an overload condition due to connection failure of a specific electric device. On the other hand, each electric device used in the home is marked with power consumption, and the user wants to know whether the power actually consumed by the electric device matches the displayed power. The inconvenience of having to calculate the power consumption by measuring the resistance of the device.

The present invention was devised to improve the above problems, and an object of the present invention is to measure the power and the amount of power of each household electric appliance. In addition, another object of the present invention is to calculate the amount of power consumption for a certain period of time the user wants the amount of power and to calculate the cost of using power as needed. Another object of the present invention is to measure the current to inform the user when the current flows over the rated current on the electrical equipment and serves to cut off the connection. In order to achieve the above object, the present invention incorporates an ammeter 31, an A / D converter 32, and a microprocessor 33 into a device to convert an electric current detected through the ammeter 31 into an analog / digital converter (A / D). After converting the digital value through the converter 32, the value is transmitted to the microprocessor 33, and the microprocess 33 is connected to the time inputted by the transmitted current and time display input selector 44c. The power, the amount of electricity and the rate of charge are calculated according to the pre-stored power calculation, the amount of power calculation and the rate calculation formula. An LCD display window 41 and an overload current capable of displaying the current, power, time, amount of power, and current time on the front panel 4 of the device while being displayed on the LCD display 41 by the processor 33. A power input unit 42 comprising a power unit 42a and a measurement current maximum value setting unit 42b, a resettable timer 45, a current display input selector 44a, a power display input selector 44b, A display input selector 44 comprising a time display input selector 44c, a power amount display input selector 44d, and a power rate display input selector 44e, and a warning light 45 to warn the user when an electrical device is overloaded. ; It is composed of a receptacle 46, the rear portion 5 of the appliance is composed of a plug 51 which can be connected to the outlet connected to the lead wire of the voltage or to another outlet.

1 is a connection state showing a connection state of the present invention.

2 is a block diagram showing an operating state of the present invention.

Figure 3 shows a block diagram of the device mounted on the present invention.

Figure 4 shows the device configuration of the front portion of the present invention.

Figure 5 shows the back of the present invention.

※ Explanation of code for main part of drawing

31: Ammeter 32: A / D converter

33: microprocessor 34: disconnect device

4: front panel

41: LCD display 42: current input unit

42a: overload current input section 42b: measurement current maximum value setting section

43: timer 44: display input selector

44a: current display input selection section 44b: power display input selection section

44c: time display input selection section 44d: power display input selection section

44e: Power charge display input selector 46: Outlet

5: back

51: plug

The contents of the present invention will be described below with reference to the drawings.

1 is a view illustrating a state in which the present invention is connected to an electric device to measure power and amount of power, A1 represents an outlet connected to a lead line, A2 represents the present invention, and A3 represents an electric device to be measured. As shown in the drawings, the present invention is connected between an outlet and an electric device, and the electric device to be measured is connected to the present invention, not connected to an outlet.

Figure 2 is a block diagram showing the operation stage of the present invention and Figure 3 is a device block diagram showing the interconnection relationship of the devices mounted on the present invention. Hereinafter, the configuration and operation of the present invention will be described based on FIGS. 2 and 3.

S1 is a step of connecting the present invention to the electric device as shown in Figure 1 and the present invention can be connected to any outlet by having an outlet connection portion in the rear portion as shown in FIG. In other words, the electric device to be measured is connected to the lead wire of the voltage through the present invention. S2 is a step of inputting an overload current, which is accomplished through the input shown in FIG. The input current indicates an overload condition and is a value to check whether there is an abnormality in the electric equipment to be measured. As the input current value, as shown in FIG. 3, an overload current input unit 42a of the current input unit 42 selects a current indicating an overload state, and this value is transmitted to the microprocessor 33. At 33, the overload alarm device 43 installed in the present invention notifies the user of the overload condition, and blocks the connection of the electric device using the connection blocking device 34. S3 is a process of detecting the current passing through the subject innovation or the alternating current ammeter 31 according to the subject innovation. The ammeter 31 may be any ammeter and the detected current is transmitted to the microprocessor 33 (S4). The current value transmitted to the microprocessor 33 is compared with the input current value to determine whether the overload condition (S5), if it is determined that the overload is cut off the power and turn on the warning light 43 shown in Figure 4 or The bell lamp is used to notify the user of an overload condition. It is used to measure the power and the amount of power for a certain period or time when it is not overloaded. In other words, input the formula to calculate the power value (P = VI: P is power, V is voltage, I is current) and the amount of power (E = Pt: t is time). If the power or the amount of power is selected through the selector shown in FIG. 4, this value is transmitted to the microprocessor 33 as shown in FIG. 3, using the transmitted current value, the stored formula and the input time S7. To calculate the power S6 and the amount S8 and the calculated values are stored on the microprocessor. If the user transmits a value that the user wants to be displayed as shown in FIG. 3 to the microprocessor 33 through the input of the display input selector 44, the microprocessor 33 returns the stored value to the LCD shown in FIG. The data is transmitted to the display window 41 and the value is displayed on the LCD display 41 (S11). On the other hand, when the user wants to know the charge for the amount of power used for a certain period, the display input selector 44 selects the power charge display input selector 44e as shown in FIG. 3. The charge for the unit power (power charge for 1 kwh) may be stored in the microprocessor in advance or input by the user (S9). That is optional as needed. The user's input is sent to the microprocessor 33 and the microprocessor 33 calculates the fee using the amount of power used for a certain period of time (S10) and transmits the calculated fee to the LCD display 41. It is displayed on the LCD display 41. (S11)

Figure 4 shows the front of the outer shape of the present invention.

The LCD display window 41 functions to display current, power, and power values that the user wants to be displayed, and also displays time (current time and period in which the amount of power is calculated). The current time can always be shown on the display, which may use a separate power supply (eg rechargeable battery). The value displayed on the LCD display 41 is a value other than the current time is connected to the microprocessor and the value transmitted from the microprocessor 33 is displayed. On the other hand, the LCD display 41 may be such that the power, or the amount of electricity or usage fee is always displayed by the user's selection as well as the current time of use of the present invention. The current input unit 42 is composed of an overload current input unit 42a and a measurement current maximum value setting unit 42b. The value inputted to the overload current input unit 42a is transmitted to the microprocessor. It is a standard for judging whether or not it is. That is, when a current of a value larger than the input value flows, the microprocessor 33 cuts off the current (blocking device is not shown) and turns on the warning light 44. The value input to the measurement current maximum value setting part 42b is also connected to the microprocessor 33, and the measurement current maximum value setting part 41b is optional according to the use of the present invention. In other words, a predetermined value may be stored in the microprocessor in advance or set by the user. The timer 43 is equipped with a reset function, which is used to set the power calculation period. That is, the user sets a start time of the timer 43 based on a predetermined time, selects a time after a predetermined time, and transmits the time to the microprocessor, and the microprocessor uses the transmitted time to calculate the amount of power. The display selector 44 includes a current display selector 44a, a power display selector 44b, a time display selector 44c, a power amount display selector 44d, and a power rate display input selector. The unit 44a may include an overload current display selection unit and a measurable maximum value display selection unit as necessary, and necessarily include a current current display selection unit. The current display selector 44a, the power display selector 44b, the time display selector 44c, the power amount selector 44d, and the power charge display input selector 44e may be configured in a cyclic manner. It may be configured by dividing it into separate selection units. The value of the display selection section 44 is transmitted to the microprocessor according to the user's choice and again displays on the LCD display 41 the value selected by the user's choice in the microprocessor. The warning lamp 45 is a device for informing the user when a value exceeding the input value flows by comparing the current inputted from the overload current input unit 42a with the current flowing on the actual measuring electric device in a micro process. It may be configured to include.

Figure 5 shows the shape of the back of the present invention is generally made of a structure that can be connected to the outlet and may include a ground wire as needed.

The present invention constructed and operated as described above is connected to the present invention by using the plug 51 of the outlet and the rear part 5 to which the present invention is introduced, as shown in FIG. It is connected to the outlet 46 of the front portion 4 of the present invention. By using the present invention connected in the above way, the user not only knows whether the general household electrical equipment is overloaded, but also simply checks whether the power displayed on the household equipment matches the power consumed when the equipment is actually used. If the power value consumed in actual use is different from the displayed power value, it is possible to reconsider whether there is an abnormality in the device or the reliability of the electric device. By always appearing on the display window, there is an effect to prevent excessive consumption of a particular device.

As described in detail above, the present invention is equipped with a simple micro process to measure the actual current and power of each electric device actually used by the user, and to confirm whether the rated current and power consumption match each other and are distributed to each household. Solve the problem that the integrated wattmeter can not measure the power of the whole household and the power of the individual electric devices, and by measuring the individual power as a simple configuration, the user adjusts the power usage of each electric device appropriately. The effect is to reduce consumption.

Claims (1)

Ammeter 31, A / D converter 32, microprocessor 33 is mounted, The current detected through the ammeter 31 is transmitted to the microprocessor 33 through an analog / digital converter (A / D converter) 32, and the microprocessor 33 is the transmitted current and time display input selector. Calculate power, amount of electricity and rate of electricity according to the time inputted by (44c), pre-stored power calculation, power amount calculation formula, and power rate calculation formula; Configured to be displayed on the LCD display window 41 from the microprocessor 33 by the input of the section 44, The front of the device (4) An LCD display window 41 capable of displaying current, power, time, power amount, and current time; A power input unit 42 including an overload current input unit 42a and a measurement current maximum value setting unit 42b; A resettable timer 43; Display input including current display input selector 44a, power display input selector 44b, time display input selector 44c, power amount display input selector 44d, and power rate display input selector 44e Selector 44; A warning light 45 to warn the user when the electrical device is overloaded; Consisting of an outlet 46, The back part 5 of the apparatus Adapter-type simple power meter consisting of a plug (51) that can be connected to the outlet of the voltage or to an outlet connected to another outlet.