CN2563784Y

CN2563784Y - Electric power socket capable of metering consumption number

Info

Publication number: CN2563784Y
Application number: CN 02271918
Authority: CN
Inventors: 黄平基
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-22
Filing date: 2002-07-22
Publication date: 2003-07-30
Anticipated expiration: 2012-07-22

Abstract

The utility model discloses a power socket for measuring electricity consumption, which comprises a socket and an electricity measurement device, the electricity measurement device is composed of a MCU, a current sampler, a voltage-dividing network, and an electricity energy register display, an input wire of the socket is connected with one end of load insertion hole via the current sampler, the other input wire of the socket is connected with the other end of load insertion hole; wherein the two ends of the current sampler are simultaneously connected into the current signal input port of the MCU, the other input wire of the socket is simultaneously connected into the voltage signal input port of the MCU via the voltage-dividing network, the electricity energy register display is connected with the display signal output port of the MCU; after the current signal and the voltage signal are processed by the MCU, the current signal and the voltage signal are outputted to the electricity energy register display for displaying electricity consumption. The utility model can make general family member detect family electricity consumption safely and conveniently.

Description

A kind of supply socket of the measurable power consumption number of degrees

Technical field

The utility model relates to a kind of supply socket, especially relates to a kind of supply socket of the measurable power consumption number of degrees.

Background technology

Have now and all adopt kilowatt-hour meter to measure to the power consumption number of degrees, the mechanical type kilowatt-hour meter is converted to magnetic by electricity, and produce magnetic force and drive the rotation of aluminium dish, this aluminium disk center tape spool, cingulum motivation tool register is walked number on the axle, thereby is ferreted out the metering electric degree by reading.Install and use kilowatt-hour meter measure electric degree must be by professionals such as electricians, the average family personnel can't detect at any time voluntarily to kilowatt-hour meter; If the average family member wants to detect family electrical equipment power consumption situation in addition, adorning kilowatt-hour meter outward by power supply department is the power consumption situation that can't in time understand family electrical equipment.

The utility model content

The purpose of this utility model is to provide a kind of supply socket of the measurable power consumption number of degrees, can make average family member safety, the convenient family electrical equipment power consumption situation that detects voluntarily.

The purpose of this utility model can realize by following technical measures: comprise socket, it is characterized in that: also comprise watt hour meter making, this watt hour meter making is deposited display by single-chip microcomputer, current sampler, potential-divider network and electric energy and is formed, the one incoming line of socket is connected to an end of load jack behind current sampler, another incoming line of socket directly connects the other end of load jack; Wherein, the link of current sampler also inserts the current signal input port of single-chip microcomputer simultaneously, and another incoming line of above-mentioned socket inserts the voltage signal input port of single-chip microcomputer simultaneously through potential-divider network; Electric energy is deposited display and is connected with the shows signal output port of single-chip microcomputer., output to electric energy and deposit display and show the power consumption number of degrees to the voltage signal of input with after current signal handles by single-chip microcomputer.

Be connected frequency overlapped-resistable filter between the current signal input port of current sampler described in the utility model and single-chip microcomputer, to reduce the interference of current sample.

Connect correcting circuit on the single-chip microcomputer described in the utility model, be used for correction measuring accuracy.

Electric energy described in the utility model is deposited display and is provided with reset key, so that can restart record at any time.

The utility model is simple in structure, volume is little, and the measurable power consumption number of degrees also directly show reading; Safety easy to use is suitable for the average family member, makes people can detect the power consumption situation of family power consumption situation and certain household electrical appliance voluntarily, in time grasps the electricity consumption spending of family.

Description of drawings

Fig. 1 is a theory diagram of the present utility model;

Fig. 2 is the circuit theory diagrams of watt hour meter making in the utility model.

Embodiment

As Fig. 1, shown in Figure 2, comprise socket and watt hour meter making, watt hour meter making is by single-chip microcomputer, current sampler, frequency overlapped-resistable filter, potential-divider network, electric energy is deposited display and is used for the correcting circuit composition of measuring accuracy, the one incoming line of socket is connected to the load link through current sampler, the link of current sampler inserts the current signal input port of single-chip microcomputer simultaneously through frequency overlapped-resistable filter, another incoming line of socket is as another link of load, this incoming line inserts the voltage signal input port of single-chip microcomputer simultaneously through potential-divider network, electric energy is deposited display and is connected with the shows signal output port of single-chip microcomputer; Also connect the correcting circuit that is used for measuring accuracy on the single-chip microcomputer., output to electric energy and deposit display and show the power consumption number of degrees to the voltage signal of input with after current signal handles by single-chip microcomputer.Electric energy is deposited display and is provided with reset key, so that can restart record at any time.

The current sampler that is connected in series on the phase line is a copper-manganese sheet shunt, resistance is about 350 μ Ω, the voltage signal that obtains 1.75mv at this resistance up-sampling is through resistance R 1 and capacitor C 1, deliver to the V1P that model is AD7755 single-chip microcomputer U1 behind the frequency overlapped-resistable filter that resistance R 2 and capacitor C 2 are formed, the V1N pin, become the input current passage, get lines crossed by the potential-divider network that R4～R16 resistance is formed, during the verification metering precision, by method to the disconnection or the short circuit of wire jumper, the line voltage attenuation of V2P pin input point that finally can adjust single-chip microcomputer U1 is to 248.9mv, and forms the voltage input channel between the V2N pin.Single-chip microcomputer U1 at first carries out the PGA gain then to wherein current channel signal, two analog to digital converter ADC carry out digitlization to the input signal of current channel, voltage channel separately, then the signal in the current channel is carried out phasing and high-pass filtering HPL, carry out multiplication mutually with the voltage channel signal at multiplier afterwards; F1, F2 pin output low frequency pulse signal through single-chip microcomputer U1 drive the electric energy register demonstration power consumption number of degrees.It is the light lotus root U3 of PS2501 that the CF pin of single-chip microcomputer U1 is connected to by model, is used for external checklist verification to measure its accuracy.

During concrete the making, can be according to the general physical dimension of daily household electrical appliance socket, socket front end certain space comes design and installation watt metering module, carries out printed substrate according to the headspace size and sets type, and LCDs and reset key that electric energy is deposited display are fixedly installed in jack housing.

Claims

1, a kind of supply socket of the measurable power consumption number of degrees, comprise socket, it is characterized in that: also comprise watt hour meter making, this watt hour meter making is deposited display by single-chip microcomputer, current sampler, potential-divider network and electric energy and is formed, a wherein incoming line of socket is connected to an end of load jack behind current sampler, another incoming line of socket is directly connected to the other end of load jack; Wherein, the current signal input of single-chip microcomputer is also inserted at the two ends of current sampler simultaneously, and another incoming line of above-mentioned socket also inserts the voltage signal input of single-chip microcomputer simultaneously through potential-divider network; Electric energy is deposited display and is connected with the shows signal output port of single-chip microcomputer.

2, the supply socket of the measurable power consumption number of degrees according to claim 1 is characterized in that: be connected frequency overlapped-resistable filter between the current signal input port of described current sampler and single-chip microcomputer.

3, the supply socket of the measurable power consumption number of degrees according to claim 1 is characterized in that: connect the metering correcting circuit on the described single-chip microcomputer.

4, the supply socket of the measurable power consumption number of degrees according to claim 1 is characterized in that: described electric energy is deposited display and is provided with reset key.