CN205103289U - Electric energy meter energy -saving control circuit - Google Patents

Abstract

The utility model relates to an energy metering equipment technical field, an electric energy meter energy -saving control circuit, include inside power module, central processing module, on -off control module for the electric energy meter power supply, inside power module turned on switch control module, the power supply mouth and the central processing module of electric energy meter are connected respectively to the on -off control module. Compared with the prior art, the utility model discloses an electric energy meter energy -saving control circuit, inside power module pass through central processing module control, and under stock's the condition, inside power module for the electric energy meter power supply, has not solved inside power module energy can exhaust, take out in the storehouse by the time, when installing the scene, change the problem of battery again, simultaneously, also avoid the power confined of kilowatt -hour meter to install inside it, changed the inconvenience that the power brought for the staff.

Description

Energy-saving control circuit for electric energy meter

technical field

The utility model relates to the technical field of electric energy metering equipment, in particular to an energy-saving control circuit for an electric energy meter.

Background technique

At present, when the watt-hour meter has no external power supply, the battery is used as the power supply to provide electric energy to the relevant circuits in the watt-hour meter. Therefore, after the watt-hour meter is stored in the warehouse for a long time, the energy of the battery inside will be exhausted. When it is taken out from the library and installed on site, the battery must be replaced again. Like this, promptly cause the resource waste and pollute the environment; In addition, the power supply of the watt-hour meter is basically all sealed and installed in it, so changing the power supply will also bring great inconvenience to the staff.

Utility model content

The purpose of the utility model is to provide an energy-saving control circuit for an electric energy meter to solve the problem that in the prior art, after the electric meter is stored in the warehouse for a long time, the energy of the battery inside will be exhausted. Replace the battery again. Like this, promptly cause resource waste and pollute environment again; In addition, the power supply of watt-hour meter all is closed and installed inside it basically, so changing the power supply also can bring technical problems such as great inconvenience to the staff.

The technical scheme of the utility model is achieved in that:

An energy-saving control circuit for an electric energy meter, comprising an internal power supply module for supplying power to the electric energy meter, a central processing module, and a switch control module, the internal power supply module is connected to the switch control module, and the switch control module is respectively connected to the power supply port of the electric energy meter and Central processing module.

Preferably, the central processing module is also connected to a liquid crystal viewing button, and the signal control terminal of the liquid crystal viewing button is connected to the switch control module.

Compared with the prior art, the utility model has the following beneficial effects:

1. In the energy-saving control circuit of the energy meter of the utility model, the internal power supply module is controlled by the central processing module. In the case of inventory, the internal power supply module does not supply power to the electric energy meter, which solves the problem that the energy of the internal power supply module will be exhausted. When it is taken out and installed on site, the battery needs to be replaced again; at the same time, the power supply of the watt-hour meter is closed and installed inside, and the inconvenience caused to the staff by replacing the power supply is avoided.

2. The energy-saving control circuit of the electric energy meter of the utility model can open the switch control module by pressing the LCD viewing button. At this time, the internal power supply module supplies power to the central processing module, and then releases the power supply of the LCD viewing button to make the LCD viewing button The black screen of the screen can not only intelligently control the on-off of the switch control module, but also save power.

Description of drawings

Fig. 1 is a circuit principle block diagram of the energy-saving control circuit of the electric energy meter of the present invention.

In the figure: 1-internal power supply module, 2-central processing module, 3-switch control module, 4-LCD viewing button.

detailed description

The utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model.

As shown in Figure 1, a kind of electric energy meter energy-saving control circuit, comprises the internal power supply module 1 that supplies power for electric energy meter, central processing module 2 (can adopt single-chip microcomputer), switch control module 3, described internal power supply module 1 turns on switch control Module 3, the switch control module 3 is respectively connected to the power supply port of the electric energy meter and the central processing module 2, the internal power supply module 1 can not only supply power to the electric energy meter, but also undertake the power supply of the central processing module 2, and the central processing module 2 can be based on The internally set command controls the on-off of the switch control module 3 , thereby controlling the on-off of the internal power supply module 1 to supply power to the electric energy meter.

In another embodiment, the internal power supply module 1 adopts a battery, and the central processing module 2 is also connected to a liquid crystal viewing button 4, and the signal control terminal of the liquid crystal viewing button 4 is connected to the switch control module 3. The working principle of this embodiment It is: the battery is used as a power source, through the switch control module, to provide electric energy to the central processing module 2 and other related circuits, so that these circuits can work normally. There are two ways to control the switch control module 3, the first central processing module 2 outputs a control signal to control the on-off of the switch control module 3; the second is to press the LCD viewing button 4 to open the switch control module 3, at this time, the battery It can also supply power to the central processing module 2 and other related circuits.

The central processing module 2 outputs a shutdown signal to the switch control module 3 to cut off the battery power supply, so that the watt-hour meter does not consume battery energy in the warehouse. If the central processing module 2 needs to work normally sometimes, press the LCD check button 4 to open The switch control module 3, the battery supplies power to the central processing module 2, when the central processing module 2 works normally, it outputs a closing signal to the switch control module 3, releases the LCD viewing button 4 in time, and the battery can also supply power to the central processing module 2, through Set, after a period of time, the central processing module 2 outputs a shutdown signal to the switch control module 3, and cuts off the battery power supply, so that the battery can no longer consume energy.

To sum up the structure of the utility model, it can be seen that the energy-saving control circuit of the electric energy meter of the present utility model, the internal power supply module is controlled by the central processing module. When it is exhausted, the battery needs to be replaced when it is taken out from the storage and installed on site; at the same time, it also avoids the inconvenience caused to the staff by replacing the power supply when the power supply of the watt-hour meter is closed and installed inside it; The new model can also turn on the switch control module by pressing the LCD viewing button. At this time, the internal power supply module supplies power to the central processing module, and then releases the power supply of the LCD viewing button to make the screen of the LCD viewing button black, which can intelligently control the switch The on-off of the control module can save electric energy.

Claims (2)

1. an electric energy meter energy-saving control circuit, it is characterized in that, comprise internal electric source module, central processing module, the switch control module of powering for electric energy meter, described internal electric source module turn on-switch control module, described switch control module connects power supply port and the central processing module of electric energy meter respectively.

2. electric energy meter energy-saving control circuit as claimed in claim 1, it is characterized in that, described central processing module is also connected with liquid crystal and checks button, and liquid crystal checks the signal control end connecting valve control module of button.