KR19990045993A - Display apparatus for power consumption rates - Google Patents

Abstract

The disclosed simple power amount display device allows a consumer to directly measure / confirm power consumption, use time, and power bill of electric and electronic products used in a general home or company.

The present invention is a current transformer for detecting the input current of the commercial AC power input through the plug and output to the outlet, a rectifier for converting the current detected through the current transformer into a DC voltage, and the analog DC voltage data output from the rectifier digital An analog / digital converter for converting the data, a controller for calculating a power rate, power consumption, and usage time according to data input through the analog / digital converter, and outputting a display control signal for each calculated data; It is composed of a display unit for displaying the electricity charge, power consumption, and usage time according to the output display control signal, and a power supply unit for supplying the operating power to each of the above-described parts by stepping down the commercial AC power input from the outside through the plug, The use of electricity can be curbed and the awareness of savings from energy use can be raised. It provides an effect that greatly contributes to the individual or the national energy rationalization policy.

Description

Simple display power for display {Display apparatus for power consumption rates}

The present invention relates to a simple power amount display device.

In more detail, consumers can directly measure and check the power consumption, usage time, and power bill of electric and electronic products used in homes and businesses, and can realize the savings of energy use. The present invention relates to a simple power display device that enables inspiration.

In general, where a small amount of electricity, such as a home or a company, uses electricity, an electricity meter is installed to measure the amount of electricity used.

When installing a power meter as described above, a power supply side (for example, a power supply supplied by an electricity supplier) (Korea Electric Power) applied to each home or office, and a load-side wire supplying electricity to each load such as a home or an office Should be connected to the electricity meter.

When the power consumption used by the load side is measured by the above-described electricity meter, a mechanical method or a single-phase method of counting a predetermined pulse signal generated through the dial rotation of the mechanical electricity meter and recording and displaying the power consumption by the central processing unit ( It is metered electronically to calculate the amount of power by applying voltage and current of single phase or three phase.

In this way, when reading the electricity consumption metered through the electricity meter, the meter reader visits Gagaho and reads the electricity meter in person or reads it remotely through communication means, and a bill is sent to each consumer according to the amount of electricity used. do.

However, each consumer of a home or company could only know how much electricity was used through the billing charges according to the electricity usage metered through the electricity meter installed by the electricity supplier as described above. Since it was impossible to know exactly how much power each electronic product consumed, there was a problem in that it was not possible to prevent unnecessary consumption of power.

An object of the present invention is to solve the problems described above so that consumers can directly know the state of use of power by directly measuring / confirming the power bill, power consumption, and usage time of various electric and electronic products used in a general home or company. In addition, the present invention provides a simple power display device that can raise awareness of energy savings.

1 is a block diagram schematically showing the configuration of a simplified power amount display device according to the present invention;

2 is a view showing the structure of a simplified power amount display device according to the present invention;

3 is a view showing a state of use of the simplified power amount display device according to the present invention.

Explanation of symbols on the main parts of the drawings

100: power display device 110: current transformer

120: rectifier 130: analog / digital converter

140: control unit 150: display unit

160: power supply unit 170: plug

180: outlet

In order to achieve the above object, the simplified power amount display device according to the present invention includes a current transformer for detecting an input current of a commercial AC power input through a plug and a rectifier, and a rectifier for converting the current detected through the current transformer into a DC voltage. And an analog / digital converter for converting the analog DC voltage data output from the rectifier into digital data, and calculating a power charge, power consumption, and usage time according to the data input through the analog / digital converter. The control unit for outputting the display control signal of the data, the display unit for displaying the electricity charge, power consumption, and usage time according to the display control signal output from the control unit, and the commercial AC power input from the outside through the plug to the above-mentioned each It is characterized by consisting of a power supply for supplying operating power to the negative.

Hereinafter, a simplified power amount display device of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing the configuration of a simplified power amount display device according to the present invention.

As illustrated, the current transformer 110 detects an input current of a commercial AC power input through the plug 170 and output to the outlet 180.

The rectifier 120 converts the current detected through the current transformer 110 into a DC voltage.

The analog / digital converter 130 converts analog DC voltage data output from the rectifier 120 into digital data.

The controller 140 calculates a power charge, a power consumption, and a usage time according to the data input through the analog / digital converter 130, and outputs the display control signal of each calculated data to the display unit 150 to be described later. .

At this time, the control unit 140 is previously input a reference unit price for calculating the charge for the power consumption, and when the reference unit price for the electricity charge is changed, the new reference unit price may be replaced with a chip.

In addition, unlike the above description, when the reference unit price for the electric charge input to the controller 140 is changed, the consumer may arbitrarily input and update a new reference unit price.

The display unit 150 simultaneously displays each unit on the right side of the number together with the number so that consumers can easily distinguish the electric charge, power consumption, and use time according to the display control signal output from the controller 140. In this case, the unit displayed with the number is [WON] in case of electricity charge, [KWH] in case of power usage, and [HOUR] in case of using time.

The power rate, power usage, and usage time displayed on the display unit 150 are sequentially displayed for a predetermined time (for example, 3 seconds) under the control of the controller 140.

In addition, unlike the above description, any one data selected by the consumer during power bill, power usage, and usage time may be continuously displayed.

In addition, the above-described display unit 150 is usually composed of a liquid crystal display device (Liquid Crystal Display) in order to represent the number and the decimal point, any other element that can display the number may be used.

The power supply unit 160 pushes down the commercial AC power input from the outside through the plug 170 and supplies the operating power to each of the above-described parts.

In addition, Figure 2 is a view showing the structure of a simple power display device according to the present invention, the plug 170 for supplying a commercial AC power supplied from the outside to the electrical and electronic products coupled to the outlet 180 to be described later The outlet 180 is formed on the back of the body, the outlet 180 is coupled to the plug (not shown) of the various electrical and electronic products is formed on the bottom of the body, the power supplied to the electrical and electronic products coupled to the outlet 180 The display unit 150 that displays the amount of use, the usage time, and the power rate is formed on the front of the body.

Next, the operation of the simple power amount display device according to the present invention configured as described above will be described in detail.

First, in order to check how much power various electrical and electronic products consume using the power amount display device 100, the consumer should combine the electrical and electronic products to be measured with the power amount display device 100.

For example, as shown in FIG. 3, the plug 210 of the refrigerator 200 is coupled to an outlet 180 formed on the bottom of the power display 100, and the plug 180 formed on the back of the power display 100. ) Is coupled to an outlet 300 to which a commercial AC power is applied.

As described above, when the coupling is completed and the commercial AC power is applied to the electrical and electronic products through the power display 100, the input current of the commercial AC power output from the plug 170 to the outlet 180 is converted into a current transformer ( Detected by 110, and is converted into a DC voltage through the rectifier 120 is applied to the analog / digital converter 130.

As such, the analog DC voltage data output from the rectifier 120 is converted into digital data through the analog / digital converter 130, and the controller 140 uses the power output from the data output from the analog / digital converter 130. You calculate your bill, power usage, and usage time.

In this way, when the power rate, power consumption, and usage time are calculated by the controller 140, the display control signal is output from the controller 140 to be displayed together with the unit of each item through the display unit 150 in real time.

In this case, the display control signal output from the controller 140 to the display unit 150 is sequentially output in order of power rate, power consumption, and use time so as to be displayed for a predetermined time interval (for example, 3 seconds).

Accordingly, the display unit 150 sequentially displays data of each item for a predetermined time according to the display control signal output from the controller 140.

As such, according to the control of the controller 140, the measured data during the display of the power charge, the power consumption, and the use time are sequentially exceeded a range (for example, three digits) that can be displayed on the display unit 150. In this case, the controller 140 stops the current calculation operation and stops displaying the operation.

As described above, while the power consumption is performed through the electrical and electronic products, a part of the display unit 150 is controlled to be turned on or blinking so that the consumer can easily recognize the power, and the consumer exchanges the power amount display device 100 with commercial use. When the power supply is disconnected from the outlet 300 and recombined, the current measurement data is reset so that the measurement and display can be made from the beginning. When measuring a current of about 5W or less, the power amount is not measured.

Herein, the present invention has been described with reference to the fact that the commercial AC power applied to the electric power display device is 220V, but the present invention is not limited thereto.

As described above, according to the simple power amount display device of the present invention, since the consumer can directly measure / confirm the power consumption, use time, and power rate of various electric and electronic products such as refrigerators and televisions used in homes and businesses. There is an effect that can suppress the use of unnecessary electricity.

In addition, it has the advantage of greatly contributing to the energy rationalization policy of the individual or the state by encouraging the reduction of energy use.

Claims (5)

Current transformer for detecting the input current of the commercial AC power input through the plug is output to the outlet; A rectifier for converting the current detected by the current transformer into a DC voltage; An analog / digital converter for converting analog DC voltage data output from the rectifier into digital data; A controller configured to calculate a power rate, a power usage amount, and a usage time according to the data input through the analog / digital converter, and output a display control signal of the calculated data; A display unit which displays a power rate, power consumption, and usage time according to the display control signal output from the control unit; And And a power supply unit for supplying operation power to each unit by stepping down a commercial AC power input from the outside through the plug. The method of claim 1, wherein the power bill, power consumption, and usage time displayed on the display unit are: Simple power amount display device characterized in that sequentially displayed at a predetermined time interval under the control of the controller. The method of claim 1, wherein the power bill, power consumption, and usage time displayed on the display unit are: The simple type power display device, characterized in that for displaying any one selected by the consumer under the control of the controller. The method of claim 1, wherein the control unit, A simple unit price display apparatus, wherein a reference unit price is input in advance to calculate a charge for power consumption, and data can be updated by a consumer when the reference unit price is changed. An outlet formed at a predetermined portion of the body to which plugs of various electric and electronic products are coupled; A plug formed on the rear surface of the body to supply commercial AC power supplied from the outside to the electrical and electronic products coupled to the outlet; And And a display unit formed on the front of the body and configured to display a usage amount, a usage time, and a power rate of power supplied to the electrical and electronic products coupled to the outlet.