TW201350867A - Meter with voltage reduction module - Google Patents

Abstract

A meter with voltage reduction module comprises: a power measure module and a voltage reduction module. The power measure module has a power input port to electrically connect with the power supply and measures the power of the power supply. The voltage reduction module has a power output port. The voltage reduction module electrically connects with the power measure module by a power line assembly to reduce a voltage value of the power supply. The power output port electrically connects with a load. The power output port transmits the power with reduced to a load.

Description

Electric meter with buck module

The invention relates to an electric meter with a step-down module, in particular to an electric meter for adjusting the voltage value delivered to the load end.

In order to solve the increasingly serious energy crisis, energy-saving technology has always been the focus of development from all walks of life, in which the energy saving of electricity can be reduced by reducing the input voltage of electrical equipment. Without affecting the normal operation of the electrical equipment, the voltage value delivered to the electrical equipment is appropriately adjusted. In addition to reducing the power consumption, the power saving effect can be achieved.

In order to reduce the voltage value transmitted to the electrical equipment, it is conventional to set a transformer in one of the distribution lines of the customer terminal, and use the transformer to reduce the voltage value of the load end of the distribution line, and when the load end of the distribution line is connected to the electrical appliance When the device is used, the electrical device has a lower power consumption, thereby achieving the purpose of saving electricity.

However, the transformer is not an essential electrical component of the distribution line. In order to carry out voltage regulation, the user must additionally install the transformer in a distribution box. Since the transformer has a complicated circuit structure, the transformer is installed in the power distribution. The complexity of the box. In addition, the transformer has a certain volume, and in the process of being disposed in the distribution box, it is necessary to move out an appropriate space in the distribution box, and the above problems all reduce the convenience of use.

The main object of the present invention is to provide an electric meter with a step-down module, which can adjust the voltage delivered to the load end to achieve the power saving effect.

Another object of the present invention is to provide an electric meter with a step-down module, which has a simple circuit structure buck module, which can save the inconvenience of additionally setting a buck module and improve the convenience of use.

In order to achieve the foregoing object, the electric meter with the step-down module of the present invention comprises: a power measuring module, the power measuring module has a power input port, and the power input port is electrically connected to a power supply. And measuring the power outputted by the power supply end; and a step-down module having a power output port, wherein the buck module is electrically connected to the power measurement module by a power line group to reduce the power supply A voltage value of the power outputted by the terminal, the power output port is electrically connected to a load end, and the power after the voltage drop voltage is output to the load end.

The power meter with the step-down module of the present invention, wherein the power line group comprises a neutral line and a second line, the step-down module comprises two voltage regulators, the two voltage regulators respectively connecting the neutral line and different fire lines .

The electric meter with the buck module of the present invention, wherein the voltage regulator comprises a first capacitor, a second capacitor and a switching component, wherein the first capacitor and the second capacitor are connected in series to the neutral line connected thereto Between the live lines, and the switching element is connected in parallel with the second capacitor.

The above and other objects, features, and advantages of the present invention will become more apparent from the aspects of the appended claims. The electric meter with the buck module of the present invention is disposed between a power supply end and a load end, and includes an electric power measurement module 1 And a buck module 2, the power measuring module 1 is electrically connected to the buck module 2.

The power measurement module 1 has a power input port 11 for electrically connecting the power supply terminal, so that the power outputted by the power supply terminal can flow into the power measurement module 1 for power consumption. Measure. The power measurement module 1 can include a circuit for performing measurement and signal processing. The circuit type is not limited thereto and can include a current comparator, a voltage comparator, a digital analog converter, and digital signal processing. Circuitry.

The buck module 2 is electrically connected to the power measuring module 1 by a power line group L. The buck module 2 has a power output port 21 for electrically connecting the load terminals.

After the power supply terminal outputs power, the power may first be measured by the power measurement module 1 and enter the voltage reduction module 2 via the power line group L. The buck module 2 is configured to reduce a voltage value of the power transmitted by the power supply end, and output the power of the voltage drop voltage to the load end by the power output port 21, so that the power of the load end has Lower voltage value.

Referring to FIG. 2, the preferred embodiment of the present invention is implemented in a one-way three-wire power supply system. The power line group L includes a neutral line L1 and a second line L2. When the power supply end transmits 220 volts. In the case of the voltage value, the neutral line L1 and the second line L2 can respectively form two 110 volt power supply circuits, and the second line L2 can constitute a 220 volt power supply circuit. The buck module 2 has two voltage regulators 22, and the two voltage regulators 22 are electrically connected to the neutral line L1 and the different fire line L2, respectively, so that the two voltage regulators 22 can respectively adjust the two 110 volts. The voltage value of the power supply circuit, and the two voltage regulator 22 can jointly adjust the power of the 220 volt power supply circuit Pressure value.

In more detail, each of the voltage regulators 22 includes a first capacitor 221, a second capacitor 222, and a switching element 223. The first capacitor 221 and the second capacitor 222 are connected in series to the neutral line L1 connected thereto. The switch element 223 is connected in parallel with the second capacitor 222. When the switching element 223 is in an off state, the voltage between the neutral line L1 and the live line L2 is not affected by the first capacitor 221 and the second capacitor 222, and still outputs 110 volts or 220 volts at the load end. When the switching element 223 is in an on state, the voltage between the neutral line L1 and the live line L2 is affected by the first capacitor 221 and the second capacitor 222, and the output is relatively low at the load end. Voltage value.

The ratio of the capacitance between the first capacitor 221 and the second capacitor 222 of the voltage regulator 22 determines the magnitude of the voltage value adjustment. The voltage value reduction relationship is as follows:

Wherein, the Vi is a voltage value of the power of the power supply terminal, and the Vo is a voltage value of the power output by the load terminal, wherein the C1 is a capacitance value of the first capacitor 221, and the C2 is a capacitance value of the second capacitor 222.

For example, when the capacitance value of the second capacitor 222 is 19 times the capacitance value of the first capacitor 221, and the switching element 223 is in an on state, the voltage value is reduced by 19/(1+19). )=0.95

It can be seen from the above calculation formula that the voltage value outputted by the voltage regulator 22 is reduced to 0.95 times the original voltage value, that is, by 5%.

In addition, the capacitance value of the first capacitor 221 of the two voltage regulators 22 and the capacitance value of the second capacitor 222 can have different proportional relationships, so that the two voltage regulators 22 can respectively supply two power supplies that are originally 110 volts. The circuit performs voltage regulation of different amplitudes. If the power supply circuit originally of 220 volts is to be adjusted, the adjustment method is also like the above principle, and will not be described here.

The voltage value output to the load terminal is adjusted down without affecting the normal operation of the electrical equipment, which helps to reduce the power consumption of the electrical equipment, thereby achieving energy saving. In addition, since the electric meter is an essential electric appliance for the general household, an additional buck module having a relatively simple circuit structure is added to the electric meter, which not only saves the user's inconvenience of adding a transformer to the distribution box, and does not require special planning. The space accommodates the transformer, and the calculation of the power consumption number and the voltage voltage drop can be simultaneously achieved, thereby improving the convenience of use.

The electric meter with the buck module of the invention can adjust the voltage delivered to the load end, and has the effect of saving electricity.

The electric meter with the step-down module of the invention has a simple step-down module with a circuit structure, which can save the inconvenience of additionally setting the buck module, and has the effect of improving the convenience of use.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

〔this invention〕

1‧‧‧Power Measurement Module

11‧‧‧Power input埠

2‧‧‧Buck Module

21‧‧‧Power output埠

22‧‧‧Voltage regulator

221‧‧‧first capacitor

222‧‧‧second capacitor

223‧‧‧Switching elements

L‧‧‧Power Line Group

L1‧‧‧Neutral

L2‧‧‧ FireWire

Fig. 1 is a circuit block diagram of an electric meter with a step-down module of the present invention.

Figure 2: Circuit diagram of the buck module of the present invention.

1‧‧‧Power Measurement Module

11‧‧‧Power input埠

2‧‧‧Buck Module

21‧‧‧Power output埠

L‧‧‧Power Line Group

Claims (3)

An electric meter with a step-down module includes: a power measuring module, the power measuring module has a power input port, wherein the power input port is electrically connected to a power supply end and measures the output of the power supply end And a step-down module having a power output port, wherein the step-down module is electrically connected to the power measuring module by a power line group for reducing a voltage value of the power outputted by the power supply end The power output is electrically connected to a load end, and the power after the voltage drop is output to the load end. An electric meter with a step-down module according to claim 1, wherein the power line group comprises a neutral line and a second live line, and the step-down module comprises two voltage regulators, and the two voltage regulators respectively Connect the neutral line to a different fire line. The electric meter with a step-down module according to claim 2, wherein the voltage regulator comprises a first capacitor, a second capacitor and a switching component, wherein the first capacitor and the second capacitor are connected in series to the phase The neutral line is connected between the neutral line and the live line, and the switching element is connected in parallel with the second capacitor.