CN2617058Y

CN2617058Y - Metering socket

Info

Publication number: CN2617058Y
Application number: CN 03241401
Authority: CN
Inventors: 李中泽
Original assignee: SHENGFAN ELECTRONICS CO Ltd WUHAN
Current assignee: SHENGFAN ELECTRONICS CO Ltd WUHAN
Priority date: 2003-04-29
Filing date: 2003-04-29
Publication date: 2004-05-19
Anticipated expiration: 2013-04-29

Abstract

The utility model relates to a metering socket. The utility model is characterized in that a power socket is provided with a display screen which can display the electric quantity of electricity consumption. The utility model has the advantages of accurate metering, multiple functions, convenient use and low circuit power consumption; the metering accuracy of the utility model is equivalent to that of an ammeter with the first-level accuracy; on the basis of the function of the common electric appliance converter (socket), the utility model is also added with the functions of measurement of the aggregate electricity consumption electric quantity, measurement of the instantaneous power of the socket load and measurement of the aggregate electricity consumption time. Without any complicated operation, users only insert the electric appliance plug into the socket just after the socket supplies electricity. The users can intuitively read the information of electricity consumption by the display of an LED and nixie tubes directly. The nixie tubes circularly display three kinds of electricity consumption data, and corresponding LED lamps are provided for indicating the data. When the power is cut off, the data can be stored automatically. Additionally, the users can clear the inner stored data by a zero clearing button on a panel. The power consumption of the complete machine is lower than 0.8 W.

Description

Metering socket

Technical field

The utility model belongs to a kind of family expenses electrical engineering and electric apparatus, is a kind of family expenses Metering socket specifically.

Background technology

The supply socket of family expenses in the market has a lot, and its effect is to patch household electrical appliance, for household electrical appliance provide power supply.And the whole electricity consumption situation of family expenses has only the kilowatt-hour meter of installing from power supply administration just can know, to the electric power people of each household electrical appliance and unclear.

Summary of the invention

The purpose of this utility model provides a kind of Metering socket that can allow the user understand various household electrical appliance load electricity consumption situations, to overcome above-mentioned defective.

To achieve these goals, characteristics of the present utility model are: supply socket is provided with the display screen that shows with power consumption;

Above-mentioned display screen side also is provided with a zero clearing button;

Above-mentioned display screen side also is provided with three luminous tube LED;

In the above-mentioned supply socket metering circuit is installed;

Above-mentioned metering circuit is made of DC power supply, power measurement integrated chip IC, singlechip CPU and memory EPROM, wherein DC power supply provides power supply for respectively singlechip CPU and metering integrated chip IC, the input of metering integrated chip IC is got the current sampling signal and the voltage sampling signal of AC power, its output is connected with singlechip CPU, memory EPROM also is connected with singlechip CPU, and the output of singlechip CPU is connected with display screen, zero clearing button and the luminous tube LED that shows with power consumption.

Advantage of the present utility model is:

1. accurate measurement: the ammeter of measuring accuracy and 1 class precision is suitable;

2. multiple function: on basis, also increased and measured instantaneous power, the function of accumulative total electricity consumption time of accumulative total with power consumption, socket load with ordinary appliances transducer (socket) function.

3. easy to use: user's it goes without doing any complicated operations only needs after the socket power supply appliance plug to be inserted socket and gets final product; The user can directly show to come by LED and charactron and reads power information very intuitively; The charactron repeating query shows three kinds of electricity consumption data and corresponding LED lamp indication is arranged.During power failure, data can be preserved automatically.In addition, the user can be by the inner data of preserving of the reset button zero clearing on the panel.

4. circuit power consumption is low; Overall Power Consumption is less than 0.8W;

Description of drawings

Fig. 1 is a profile schematic diagram of the present utility model.

Fig. 2 is a theory diagram of the present utility model.

Fig. 3 is circuit theory diagrams of the present utility model.

Embodiment

Further specify embodiment of the present utility model below in conjunction with accompanying drawing, but this embodiment should not be construed as to restriction of the present utility model.

The utility model is on the basis of supply socket, add the electric energy that special-purpose electric energy metrical unit metering user consumes, after microprocessor processes, calculate and preserve relevant electricity consumption data and (always use power consumption, total electricity consumption time, load instantaneous power), show the power information that correspondence is described by luminous tube LED indication and charactron 2; The user can come the zero clearing data by zero clearing button 1.

The utility model is made of charactron 2, luminous tube LED, metering circuit, reset button 1, socket adapter unit and shell, metering circuit and socket adapter unit reset button 1 are on the charactron 2 positive left sides, three luminous tube LED lamp vertical setting of types are on positive the right of charactron, and the manganese copper diverter of metering circuit is exported the loop of gang socket adapter unit.

When operation principle of the present utility model is user power utilization, utilizes the active power of the real-time sensing lead of special power metering integrated chip IC and be converted to the pulse signal corresponding with power; Singlechip CPU accurately calculates related datas such as bearing power, electricity consumption time, and on charactron 2 data is shown in real time by handling pulse signal; The power failure data are not lost.Can utilize the data of zero clearing button 1 zero clearing storage.

The power measurement integrated chip IC of power measurement circuit of the present utility model adopts state type electronic electric meter specialized large scale integrated circuit CS7032, this chip good linearity, and the dynamic duty wide ranges, anti-shunt running, starting current is 5 ‰ Ib (Ib is a rated current).Mode by manganese copper diverter and electric resistance partial pressure samples by the electric current 3 of load 5 and the millivolt step voltage 4 at load 5 two ends, utilize special-purpose electric energy computation chip IC inner integrated input buffer amplifier and analog multiplier, converse the active power of load according to P=UI; Be converted to the square-wave signal corresponding through voltage-frequency converter again with power; Singlechip CPU is measured a pulse period (T), can accurately calculate the instantaneous power of load 5.

The utility model is calculated socket by the software timer chronoscope and is powered on the electricity consumption time; Thereby calculate the electricity consumption number of degrees (kW) by number of pulses.

Singlechip CPU of the present utility model is selected MDT2010A for use, and the monolithic I/O mouth driving force of this model is strong, can directly drive charactron 2.Therefore can adopt the mode of scan round on charactron 2, data to be shown in real time, to reduce power consumption.A kind of data of every demonstration, the luminous tube LED lantern festival of corresponding parameter is lighted, to make things convenient for user's reading.

Metering circuit also adopts the AT24LC01B memory, is the serial EEPROM memory data, and the power failure data holding time can reach 10 years.The user can utilize the data of zero clearing button 1 zero clearing memory inside.

The power supply of metering circuit adopts the capacitance partial pressure mode of low-power consumption.Through utilizing 5 volts voltage-stabiliser tube voltage stabilizing to obtain positive and negative 5 volts direct voltage after the full-bridge halfwave rectifier; Give the power supply of computation chip IC and singlechip CPU respectively.After entire circuit adopted low power dissipation design, Overall Power Consumption was no more than 0.8W.

The content that this specification is not described in detail belongs to and well known to a person skilled in the art prior art.

Claims

1, a kind of Metering socket is characterized in that: supply socket is provided with the display screen (2) that shows with power consumption.

2, Metering socket as claimed in claim 1 is characterized in that: the other zero clearing button (1) that also is provided with of display screen (2).

3, Metering socket as claimed in claim 1 is characterized in that: the other luminous tube (LED) that also is provided with of display screen (2).

4, want 3 described Metering sockets as right, it is characterized in that: other three luminous tubes (LED) that are provided with of display screen (2).

5, Metering socket as claimed in claim 1 is characterized in that: metering circuit is installed in the supply socket.

6, Metering socket as claimed in claim 4, it is characterized in that: metering circuit is by DC power supply, power measurement integrated chip (IC), single-chip microcomputer (CPU) and memory (EPROM) constitute, wherein DC power supply provides power supply for respectively single-chip microcomputer (CPU) and metering integrated chip (IC), the input of metering integrated chip (IC) is got the current sampling signal (3) and the voltage sampling signal (4) of AC power, its output is connected with single-chip microcomputer (CPU), memory (EPROM) also is connected with single-chip microcomputer (CPU), and the output of single-chip microcomputer (CPU) connects the display screen (2) that shows with power consumption, zero clearing button (1) and luminous tube (LED).