CN207232212U - A kind of electric energy meter - Google Patents
A kind of electric energy meter Download PDFInfo
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- CN207232212U CN207232212U CN201721252216.2U CN201721252216U CN207232212U CN 207232212 U CN207232212 U CN 207232212U CN 201721252216 U CN201721252216 U CN 201721252216U CN 207232212 U CN207232212 U CN 207232212U
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Abstract
The utility model proposes a kind of electric energy meter, including measurement portion, electric control part, ground terminal；Surge protection unit, is connected with electric control part and ground terminal respectively；Second temperature sensor, is configured on electric energy meter casing, and second temperature sensor is connected with electric control part；Insulated part, is arranged between measurement portion and electric control part；Set independently of each other between electric control part and measurement portion, and electric control part is connected with measurement portion by communication network；Measurement portion includes the first temperature sensor, for detecting the temperature of measurement portion.The utility model not only farthest reduces influence of the temperature to electric energy meter timing unit in the prior art, there is provided accurate clock information, is conducive to improve accuracy of the electric energy meter to electric-power metering；And effectively surge failure in electric energy meter and circuit high temperataure phenomena can be detected, and accordingly protected in time, avoid the damage of electric energy meter or electric wire caused by surge failure or circuit high temperataure phenomena, or even fire and so on.
Description
Technical field
It the utility model is related to a kind of electric energy meter.
Background technology
With the development of current social and power industry, electric energy meter has become the common tool of statistics power consumption,
Easy to statistics of the Utilities Electric Co. to grid power and distribution, and the clearance of the corresponding electricity charge.Wherein, electric energy meter is carried out to electric power
Timing unit is usually required in metering process to obtain clock information, and timing unit is usually crystal oscillation in the prior art
Device, corresponding clock information is produced for electric energy meter, but crystal oscillator be often affected by temperature during the work time it is larger, no
High-precision clock information can be provided in wide temperature range, so as to be unfavorable for improving accuracy of the electric energy meter to electric-power metering.
In addition, in the prior art, whether electric energy meter is usually overloaded by detecting by the size detection electric current of electric current, or
Overload power-off protection is realized using fuse.But work as electricity consumption line anomalies or electric energy meter internal fault etc., such as conducting wire and electric energy
Loose contact between table, contact resistance is excessive, also results in metal, the conductor overheating of junction, when heating temp reaches one
When determining degree, electric energy meter and the damage with electric line, or even the generation of fire can be caused；Meanwhile in view of electric energy meter directly with electricity
Road connects, and often due to reasons such as thunder and lightning, voltage ripple of power network, electric energy meter and the old, electrostatic of respective lines, surge event occurs
Situations such as hindering, causing the electrically-controlled component damage of electric energy meter or electric energy meter related data to be destroyed, even cause when serious corresponding
Fire incident so that there are some potential safety problems during the use of electric energy meter.
Application publication number be CN103376356A application documents disclose it is a kind of can be with high precision to the cause of oscillator
Semiconductor device, measuring apparatus and the bearing calibration being corrected in the error of the frequency of oscillation of temperature.The semiconductor device
Have：Oscillator, is vibrated with intrinsic frequency；Semiconductor integrated circuit, is integrated with temperature sensor and control unit, described
Temperature around temperature sensor detection, the control unit are electrically connected with oscillator, and are based on being detected by temperature sensor
Temperature correct the error dependent on temperature of oscillator；And sealing, by oscillator and semiconductor integrated circuit one
Ground is sealed.And if by the semiconductor device applications on electric energy meter, electric energy meter can not be solved and deposited in use
Security hidden trouble.
Application publication number is that the application documents of CN103033655A disclose a kind of intelligent electric energy with precise timing module
Table, the intelligent electric energy meter with precise timing module include microprocessor, timing module, embedded safe control module, logical
Interrogate module, metering module, data memory module, relay, timing module；The microprocessor is controlled with embedded-type security respectively
Module, communication module, metering module, data memory module, relay, timing module connection；The timing module onboard clock
Circuit, 32.768K crystal oscillators, temperature sensor；Timing module is connected with interface when Phototube Coupling, school successively；Timing mould
Block is connected with battery.The intelligent electric energy meter can have high-precision clock information in wide temperature range.But in this application
Intelligent electric energy meter can not solve electric energy meter existing security hidden trouble in use.
Utility model content
The utility model solves electric energy meter and exists to improve the accuracy of electric energy meter in the prior art to electric-power metering
Existing security hidden trouble, proposes a kind of electric energy meter during use.
In order to solve the above technical problems, the technical solution of the utility model is as follows：
A kind of electric energy meter, including measurement portion, electric control part, ground terminal, ground terminal are connected with ground wire, measurement portion respectively with power grid
Connected with ground terminal, the measurement portion includes the timing unit equipped with crystal oscillator, and the electric energy meter further includes：
Surge protection unit, is connected with electric control part and ground terminal respectively, for protecting electric energy meter surge failure；
Second temperature sensor, is configured on electric energy meter casing, and second temperature sensor is connected with electric control part, for examining
Survey electric energy meter ambient temperature；
Insulated part, is arranged between measurement portion and electric control part, for electrically exhausted to being carried out between measurement portion and electric control part
Edge；
Set between electric control part and measurement portion, and connected between electric control part and measurement portion by communication network independently of each other；
The measurement portion includes the first temperature sensor, for detecting the temperature of measurement portion.
Further, the measurement portion includes：
Voltage measure, is connected with mains-power circuit, for obtaining voltage relevant information；
Current measurer, is connected with mains-power circuit, for obtaining electric current relevant information；
Switch driver, is connected with power network switch, and for driving power network switch, power network switch is configured in mains-power circuit
On；
Communication unit, is connected with Voltage measure, current measurer, switch driver respectively；
First temperature sensor, is connected with communication unit；
Timing unit, is connected with communication unit, and the timing unit includes crystal oscillator, for producing clock information.
Preferably, the communication unit includes encoder and communicator；
Encoder, is connected with Voltage measure, current measurer, the first temperature sensor, timing unit respectively；
Communicator is connected with encoder, is connected between communicator and electric control part by communication network.
Further, the electric control part includes：
Central processing unit, for handling the relevant information of electric energy meter；
Potentiometric detection module, is connected with central processing unit, for detecting the real-time electrical potential information of electric control part；
Compensating module, central processing unit and communication module connection respectively, for the clock information acquired in electric control part
Carry out temperature-compensating；
Display module, is connected with central processing unit, for showing electric power relevant information；
Memory module, is connected with central processing unit, for storing electric energy meter relevant information；
Communication module, is connected with central processing unit, passes through communication network between communication module and the communication unit of measurement portion
Connection.
Further, the central processing unit is connected with second temperature sensor, for detecting electric energy meter external environment condition temperature
Degree.
Preferably, the communication network is cordless communication network.
Further, the electric energy meter further includes forceful electric power circuit board and light current circuit board；
Measurement portion is configured on forceful electric power circuit board, and electric control part is configured on light current circuit board, forceful electric power circuit board with it is weak
Plate is electrically integrated to be independently arranged；Insulated part is arranged between forceful electric power circuit board and light current circuit board.
Preferably, the insulated part is any of air or insulating resin.
Further, forceful electric power circuit board is connected with ground terminal, and light current circuit board is connected with surge protection unit, surge protection
Unit is connected with ground terminal, for protecting electric energy meter surge failure.
Preferably, the surge protection unit is any of arrester with gaps or inflation surge discharge tube.
Compared with prior art, the utility model proposes a kind of electric energy meter, by being separately provided measurement portion and electric control part, electricity
Control portion is connected with surge protection unit, second temperature sensor, and the first temperature sensor is set in measurement portion, not only maximum
Influence of the temperature to electric energy meter timing unit in the prior art is reduced to degree, to provide accurate clock information, is had
Accuracy beneficial to raising electric energy meter to electric-power metering；And can be effectively high to the surge failure in electric energy meter and circuit
Warm phenomenon is detected, and is protected accordingly in time, is avoided electric caused by surge failure or circuit high temperataure phenomena
The damage of energy table or electric wire, or even fire and so on.
Brief description of the drawings
, below will be to needed in the embodiment attached in order to illustrate more clearly of the technical solution in the utility model
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model, for this
For the those of ordinary skill in field, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structure diagram of electric energy meter described in the utility model；
Fig. 2 is a kind of another structure diagram of electric energy meter described in the utility model；
Fig. 3 is a kind of modular structure schematic diagram of the light current circuit board of electric energy meter described in the utility model；
Fig. 4 is a kind of modular structure schematic diagram of the forceful electric power circuit board of electric energy meter described in the utility model.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent apparatus and method of some aspects be described in detail in the appended claims, the utility model.
It is only merely for the purpose of description specific embodiment in the term that the utility model uses, and is not intended to be limiting this reality
With new.In " one kind " of the utility model and singulative used in the attached claims, " described " and "the"
It is intended to include most forms, unless context clearly shows that other implications.It is also understood that term used herein " and/
Or " refer to and any or all may be combined comprising the associated list items purposes of one or more.
It will be appreciated that though various information may be described using term first, second, third, etc. in the utility model,
But these information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not
In the case of departing from the scope of the utility model, the first information can also be referred to as the second information, and similarly, the second information can also
It is referred to as the first information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determining ".
The utility model will be described in detail by embodiment below.
Embodiment 1
As shown in Figure 1, a kind of electric energy meter, including measurement portion, electric control part, ground terminal, ground terminal are connected with ground wire, measurement
Portion is connected with power grid and ground terminal respectively, and the measurement portion includes the timing unit equipped with crystal oscillator.
Wherein measurement portion has power measurement device same as the prior art, for being measured to power consumption, measurement
Portion is directly connected to power grid, for measuring the forceful electric power in power grid (such as 220V residential electricity consumptions)；Electric control part has and the prior art
Identical electric power data processing apparatus is related for being detected to electric power under the support of light current (electricity consumption of electric energy meter nominal operation)
Information is handled, the calculating of electricity and statistics, the calculating of the electricity charge and the storage of statistics and relevant information, display etc..
The electric energy meter further includes：
Surge protection unit, is connected with electric control part and ground terminal respectively, for protecting electric energy meter surge failure；
Second temperature sensor, is configured on electric energy meter casing, and second temperature sensor is connected with electric control part, for examining
Survey electric energy meter ambient temperature；
Insulated part, is arranged between measurement portion and electric control part, for electrically exhausted to being carried out between measurement portion and electric control part
Edge；
Set between electric control part and measurement portion, and connected between electric control part and measurement portion by communication network independently of each other；
The measurement portion includes the first temperature sensor, for detecting the temperature of measurement portion.
In view of electric energy meter in the prior art when usually requiring timing unit during metering process is carried out to electric power to obtain
Clock information, and the crystal oscillator in timing unit is often affected by temperature larger, therefore the present embodiment is electric in the prior art
On the basis of energy table timing unit, the first temperature sensor is separately provided in measurement portion, for detecting the temperature of measurement portion；
Specifically, in the course of work of electric energy meter, timing unit obtains clock information, and the first temperature sensor, which obtains, to be surveyed
Clock information and the temperature of measurement portion are sent to electric control part by the temperature in amount portion, measurement portion by communication network；Electric control part according to
The temperature of clock information and measurement portion, by default compensation condition, data benefit is carried out to the clock information that timing unit produces
Repay, so as to farthest reduce influence of the temperature to timing unit, to provide accurate clock information, be conducive to carry
Accuracy of the high electric energy meter to electric-power metering.
In addition, second temperature sensor is set on electric energy meter casing, and second temperature sensor is connected with electric control part, is used
In detection electric energy meter ambient temperature, while the first temperature sensor provides the temperature of measurement portion for electric control part；Electric control part pair
The temperature of electric energy meter ambient temperature and measurement portion is handled, and judges whether to meet preset temperature condition, if satisfied, then
Illustrating that temperature is excessive at the measurement portion that is directly connected to mains-power circuit, electric energy meter then carries out corresponding high temperature regulation and control action, and
Actuation of an alarm, so as to avoid the excessive feelings of temperature at measurement portion caused by the reason such as circuit abnormality or electric energy meter internal fault
Condition occurs, and can be effectively prevented from the damage of electric energy meter and electric wire caused by temperature is excessive, or even fire and so on.
In the present embodiment, while measurement portion is connected with ground terminal, measurement portion and electric control part are isolated by insulated part
Come, it is possible to prevente effectively from the power for operation of electric control part is influenced be subject to high pressure thunder and lightning or power grid surge, cause in electric control part
Voltage rise destroys the situation of associated appliance part；
At the same time due to electrostatic or electric control part receive the influence of power grid surge when, certain surge can be produced in electric control part,
Electric control part is caused to bear suitable surge voltage.In order to avoid destruction of the surge of electric power to electric control part, the present embodiment passes through setting
Surge protection unit, when the surge voltage in electric control part reaches rated value, electric control part control surge protection unit conducting is that is, real
The connection of existing electric control part and ground terminal, so that the surge electric charge produced in electric control part be grounded in time.
It should be noted that in order to avoid measurement portion and the electric current in electric control part interfere with each other, measurement portion and electric control part phase
Mutually it is independently arranged, and is only connected between measurement portion and electric control part by communication network, measurement portion is by communication network by measurement
Associate power information is sent to electric control part, and relevant control instruction is sent to measurement portion by electric control part by communication network.
A kind of electric energy meter that the present embodiment proposes, by being separately provided measurement portion and electric control part, electric control part and surge protection
Unit, second temperature sensor connection, and the first temperature sensor is set in measurement portion, not only farthest reduce temperature
The influence to electric energy meter timing unit in the prior art is spent, to provide accurate clock information, is conducive to improve electric energy meter
To the accuracy of electric-power metering；And effectively the surge failure in electric energy meter and circuit high temperataure phenomena can be examined
Survey, and protected accordingly in time, avoid the electric energy meter caused by surge failure or circuit high temperataure phenomena or electric wire
Damage, or even fire and so on.
Embodiment 2
As shown in Figure 2-4, the electric energy meter further includes forceful electric power circuit board and light current circuit board；
Measurement portion is configured on forceful electric power circuit board, and electric control part is configured on light current circuit board, forceful electric power circuit board with it is weak
Plate is electrically integrated to be independently arranged；Insulated part is arranged between forceful electric power circuit board and light current circuit board.
The insulated part is any of air or insulating resin.
Forceful electric power circuit board is connected with ground terminal, and light current circuit board is connected with surge protection unit, and surge protection unit is with connecing
Ground terminal connects, for protecting electric energy meter surge failure.
The surge protection unit is any of arrester with gaps or inflation surge discharge tube.
In the specific protection process to surge failure, central processing unit analyzes the real-time electricity that potentiometric detection module detects
Place value, when real-time potential value is more than current potential rated value, illustrates surge of electric power occurs in electric control part, and central processing unit controls at this time
Surge protection unit turns on, that is, the connection of electric control part and ground terminal is realized, so that the surge electric charge produced in electric control part is timely
Ground connection.
In addition, the present embodiment is conducive to carry out each component of electric energy meter by setting light current circuit board and forceful electric power circuit board
Integrative assembly, reduces the size of electric energy meter；The two is independently arranged at the same time, and insulated part is set between, can
To avoid the influence of high pressure thunder and lightning or power grid surge to each electric component on light current circuit board to greatest extent, effectively to electricity
Energy table is protected.
Embodiment 3
As shown in attached drawing 1-4, in order to which further the electric energy meter is introduced, the present embodiment is to electric control part and measurement
Portion is described further.
The measurement portion includes：
Voltage measure, is connected with mains-power circuit, for obtaining voltage relevant information；Wherein, voltage detector includes becoming
Depressor, divider resistance or attenuator, voltage detector circuit voltage, and the low level voltage proportional to the voltage detected is provided
Signal.
Current measurer, is connected with mains-power circuit, for obtaining electric current relevant information；Wherein, current detector includes becoming
Device, Hall element or shunt resistance, current detector detection circuit electric current are flowed, and is provided low with the current in proportion of detection
Level voltage signal.
Switch driver, is connected with power network switch, and for driving power network switch, power network switch is configured in mains-power circuit
On；
First temperature sensor, is connected with communication unit, for being detected to the temperature of measurement portion, and provides measurement portion
Temperature information；
Timing unit, is connected with communication unit, and the timing unit includes crystal oscillator, for producing clock information；
The timing unit also has independent power supply device at the same time, and independent electric power support is provided for the running of timing unit；It is described only
Vertical power supply unit is preferably supplying cell.
Communication unit, is connected with Voltage measure, current measurer, switch driver respectively；Wherein, communication unit includes
Encoder and communicator；
Encoder, is connected with Voltage measure, current measurer, the first temperature sensor, timing unit respectively；
Encoder includes at least analogue-to-digital converters, and encoder will represent that the current signal that current detector detects turns
Current data information (binary digital datas of such as 16) is changed to, encoder will represent that the voltage that voltage detector detects is believed
Number be converted to voltage data information (binary digital datas of such as 16), the clock information that encoder produces timing unit
Be converted to clock data information (binary digital datas of such as 16), the temperature that encoder produces the first temperature sensor
Information is converted to temperature data information (binary digital datas of such as 16).
Communicator is connected with encoder, is connected between communicator and electric control part by communication network.
The electric control part includes：
Central processing unit, electricity is calculated for handling the relevant information of electric energy meter, such as to the power measurement information of measurement portion
Power dosage simultaneously carries out ASSOCIATE STATISTICS, transfers related data, and generation relevant control is instructed to control the running of electric energy meter associated components
Deng.
Wherein on the basis of embodiment 1, the central processing unit is connected with second temperature sensor, for detecting electric energy
Table ambient temperature.
Potentiometric detection module, is connected with central processing unit, for detecting the real-time electrical potential information of electric control part；Central processing unit
The real-time potential value that analysis potentiometric detection module detects, when real-time potential value is more than current potential rated value, illustrates in electric control part
Generation surge of electric power, the conducting of central processing unit control surge protection unit, that is, realize the connection of electric control part and ground terminal at this time, from
And the surge electric charge produced in electric control part is grounded in time.
Compensating module, is connected with central processing unit, communication module respectively, for the clock information acquired in electric control part into
Trip temperature compensates；Compensating module obtains the temperature of clock information and measurement portion from communication module, then according to predesigned compensation condition,
Temperature-compensating is carried out to the clock information that electric control part obtains, wherein, compensating module is stored with corresponding predesigned compensation condition, described
Predesigned compensation condition is set when electric energy meter dispatches from the factory by electric energy meter manufacturer.
Display module, is connected with central processing unit, for showing electric power relevant information；Specifically, display module can be shown
Show that the prestore electricity charge, residue of of that month power usage, the of that month electricity charge, history power usage, the history electricity charge, residue prestores the letter such as electric power
Breath.
Memory module, is connected with central processing unit, for storing electric energy meter relevant information；Wherein memory module at least stores
There are current potential rated value, electric power statistical correlation information, the instruction of central processing unit relevant control, preset temperature condition and other electric energy
Table preset data etc.；It should be noted that current potential rated value and preset temperature condition are given birth to when electric energy meter dispatches from the factory by electric energy meter
Business men is set.
Wherein, memory module can include the storage medium of at least one of following storage media types type：Flash memory
Type, hard disk type, solid magnetic disc (SSD) type, silicon disk driver (SDD) type, multimedia card are miniature, card-type memory is (for example, SD
Or XD type of memory), random access memory (RAM) type, static RAM (SRAM) type, read-only storage
(ROM) type, electrically erasable programmable read-only memory (EEPROM) type, programmable read only memory (PROM) type, magnetic memory
Type, magnetic disc type and optical disc type.
Communication module, is connected with central processing unit, passes through communication network between communication module and the communication unit of measurement portion
Connection.
The communication unit has the communication protocol to match and component with communication module, is specifically as follows Wireless LAN
(WLAN) (for example, Wi-Fi), WiMAX (Wibro), World Interoperability for Microwave Access, WiMax (Wimax), high-speed down link point
Group access (HSDPA) wireless Internet module and using bluetooth, radio frequency identification (RFID), Infrared Data Association (IrDA),
Any of short range communication module and wire communication module of ultra wide band (UWB) and ZigBee (purple honeybee).
The communication network is cordless communication network, can specifically include 3G network, 4G networks, Wi-Fi (802.11) net
Any one in network, Wi-Max (802.16) network, Bluetooth communication, ZigBee-network, frequency hopping spread spectrum (FHSS) radio net.
Embodiment 4
The present embodiment illustrates the specific work process of electric energy meter on the basis of embodiment 1-3.
In the course of work of electric energy meter, timing unit obtains clock information, and the first temperature sensor obtains measurement portion
Clock information and the temperature of measurement portion are sent to electric control part by temperature, measurement portion by communication network；The communication module of electric control part
The temperature of clock information and measurement portion is obtained, the temperature of clock information and measurement portion is sent to compensating module, compensating module root
According to predesigned compensation condition, temperature-compensating is carried out to the clock information that electric control part obtains, while after central controller is according to compensation
Clock information and information of voltage, current information are handled and measured to power consumption.
Specifically, since the timing unit of measurement portion produces clock information by crystal oscillator, its actual measured value is
One frequency values, are set to f, and the predesigned compensation condition is the predesigned compensation calculating formula after quadratic function is fitted：F=f+a ×
(T-T0)2+b
Wherein, F is the clock information after compensation, and f is the clock information actually measured, and a is temperature coefficient, and a is according to crystalline substance
The individual difference of oscillation body device and constant set in advance, and a ＜ 0；T is the temperature for the measurement portion that the first temperature sensor obtains
Value, T0 are the vertex temperature after quadratic function fitting, and b is the corner frequency error after quadratic function fitting.
So as to be realized by compensating module and carry out temperature to the clock information that electric energy meter timing unit in the prior art produces
Degree compensation, farthest reduces influence of the temperature to timing unit, to provide accurate clock information, is conducive to carry
Accuracy of the high electric energy meter to electric-power metering.
In addition, second temperature sensor is set on electric energy meter casing, and second temperature sensor is connected with electric control part, is used
In detection electric energy meter ambient temperature, while the first temperature sensor provides the temperature of measurement portion for electric control part；Electric control part pair
The temperature of electric energy meter ambient temperature and measurement portion is handled, and judges whether to meet preset temperature condition, if satisfied, then
Illustrating that temperature is excessive at the measurement portion that is directly connected to mains-power circuit, electric energy meter then carries out corresponding high temperature regulation and control action, and
Actuation of an alarm.
Specifically, the temperature value for the measurement portion that the first temperature sensor obtains is set to T, second temperature sensor obtains outer
Portion's environment temperature is set to t, wherein, preset temperature condition includes：
Condition A, when t is in preset temperature range, this difference of T-t is more than the first temperature value；
Condition B, when t is not in preset temperature range, T is more than second temperature value.
It should be noted that for the temperature of electric energy meter ambient temperature and measurement portion, meet condition A or bar
Any one condition in part B, is to meet preset temperature condition；It is unsatisfactory for condition A and is unsatisfactory for condition B, to be unsatisfactory for presetting
Temperature conditionss.In addition, preset temperature condition and preset temperature range therein, the first temperature value, second temperature value store
In the memory module of electric control part, and preset temperature condition and preset temperature range therein, the first temperature value, second temperature
Value is set when electric energy meter dispatches from the factory by electric energy meter manufacturer.
Embodiment 5
In order to improve the degree of intelligence of electric energy meter, while electric energy meter dependent failure is grasped in time easy to user or Utilities Electric Co.
Information and warning message, electric energy meter can be led to by the communication module of electric control part with user terminal or Utilities Electric Co.'s terminal
Letter, i.e., communication module is connected by communication network with user terminal or Utilities Electric Co.'s terminal.
When electric energy meter detects surge failure or circuit high temperataure phenomena occurs, electric energy meter will related event by communication network
Hinder information and warning message is sent to the user terminal or Utilities Electric Co.'s terminal, not only may remind the user that makes its electric energy meter
Paid close attention to situation, while Utilities Electric Co. can also be made to grasp the operating condition of user's electric energy meter in time, so as to when necessary
Electric energy meter is carried out timely to safeguard or replace.In addition, electric energy meter can also be sent power information to use by communication network
Family terminal, in order to which user knows its electricity consumption situation in time.
Wherein, preferably, the equipment with communication function that user terminal carries for ease of user, such as hand are mechanical, electrical
The equipment such as brain, Intelligent bracelet, intelligent watch.Utilities Electric Co.'s terminal is arranged on Utilities Electric Co., is the clothes at least with communication function
Business device.
In addition, in the utility model, communication network is preferably cordless communication network, including 3G network, 4G networks, Wi-
Fi (802.11) network, Wi-Max (802.16) network, Bluetooth communication, ZigBee-network, frequency hopping spread spectrum (FHSS) radio net
Any one in network.
The foregoing is merely the preferred embodiment of the application, not limiting the application, all essences in the application
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of the application protection.
Claims (10)
1. a kind of electric energy meter, including measurement portion, electric control part, ground terminal, ground terminal are connected with ground wire, measurement portion respectively with power grid and
Ground terminal connects, and the measurement portion includes the timing unit equipped with crystal oscillator, it is characterised in that the electric energy meter also wraps
Include：
Surge protection unit, is connected with electric control part and ground terminal respectively, for protecting electric energy meter surge failure；
Second temperature sensor, is configured on electric energy meter casing, and second temperature sensor is connected with electric control part, for detecting electricity
Can table ambient temperature；
Insulated part, is arranged between measurement portion and electric control part, for carrying out electric insulation between measurement portion and electric control part；
Set between electric control part and measurement portion, and connected between electric control part and measurement portion by communication network independently of each other；
The measurement portion includes the first temperature sensor, for detecting the temperature of measurement portion.
2. a kind of electric energy meter as claimed in claim 1, it is characterised in that the measurement portion includes：
Voltage measure, is connected with mains-power circuit, for obtaining voltage relevant information；
Current measurer, is connected with mains-power circuit, for obtaining electric current relevant information；
Switch driver, is connected with power network switch, and for driving power network switch, power network switch is configured on mains-power circuit；
Communication unit, is connected with Voltage measure, current measurer, switch driver respectively；
First temperature sensor, is connected with communication unit；
Timing unit, is connected with communication unit, and the timing unit includes crystal oscillator, for producing clock information.
3. a kind of electric energy meter as claimed in claim 2, it is characterised in that the communication unit includes encoder and communicator；
Encoder, is connected with Voltage measure, current measurer, the first temperature sensor, timing unit respectively；
Communicator is connected with encoder, is connected between communicator and electric control part by communication network.
4. a kind of electric energy meter as claimed in claim 1, it is characterised in that the electric control part includes：
Central processing unit, for handling the relevant information of electric energy meter；
Potentiometric detection module, is connected with central processing unit, for detecting the real-time electrical potential information of electric control part；
Compensating module, central processing unit and communication module connection respectively, for being carried out to the clock information acquired in electric control part
Temperature-compensating；
Display module, is connected with central processing unit, for showing electric power relevant information；
Memory module, is connected with central processing unit, for storing electric energy meter relevant information；
Communication module, is connected with central processing unit, is connected between communication module and the communication unit of measurement portion by communication network.
5. a kind of electric energy meter as claimed in claim 4, it is characterised in that the central processing unit connects with second temperature sensor
Connect, for detecting electric energy meter ambient temperature.
6. a kind of electric energy meter as claimed in claim 4, it is characterised in that the communication network is cordless communication network.
7. a kind of electric energy meter as claimed in claim 1, it is characterised in that the electric energy meter further includes forceful electric power circuit board and light current
Circuit board；
Measurement portion is configured on forceful electric power circuit board, and electric control part is configured on light current circuit board, forceful electric power circuit board and light current collection
It is to be independently arranged into plate；Insulated part is arranged between forceful electric power circuit board and light current circuit board.
8. a kind of electric energy meter as claimed in claim 7, it is characterised in that the insulated part is in air or insulating resin
It is any.
9. a kind of electric energy meter as claimed in claim 7, it is characterised in that forceful electric power circuit board is connected with ground terminal, and light current integrates
Plate is connected with surge protection unit, and surge protection unit is connected with ground terminal, for protecting electric energy meter surge failure.
10. a kind of electric energy meter as claimed in claim 9, it is characterised in that the surge protection unit is arrester with gaps
Or any of inflation surge discharge tube.
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| CN201721252216.2U CN207232212U (en) | 2017-09-27 | 2017-09-27 | A kind of electric energy meter |
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| CN201721252216.2U CN207232212U (en) | 2017-09-27 | 2017-09-27 | A kind of electric energy meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919170A (en) * | 2018-06-30 | 2018-11-30 | 宁波三星医疗电气股份有限公司 | A kind of power fault detection method and system based on power meter temperature monitoring |
| CN110058059A (en) * | 2019-04-19 | 2019-07-26 | 南京涛博能源科技有限公司 | A kind of electric instrument with environment monitoring function |
| CN116299145A (en) * | 2023-05-11 | 2023-06-23 | 石家庄科林电气股份有限公司 | Safety monitoring method and device for electric energy meter and electric energy meter |
-
2017
- 2017-09-27 CN CN201721252216.2U patent/CN207232212U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919170A (en) * | 2018-06-30 | 2018-11-30 | 宁波三星医疗电气股份有限公司 | A kind of power fault detection method and system based on power meter temperature monitoring |
| CN110058059A (en) * | 2019-04-19 | 2019-07-26 | 南京涛博能源科技有限公司 | A kind of electric instrument with environment monitoring function |
| CN116299145A (en) * | 2023-05-11 | 2023-06-23 | 石家庄科林电气股份有限公司 | Safety monitoring method and device for electric energy meter and electric energy meter |
| CN116299145B (en) * | 2023-05-11 | 2023-08-08 | 石家庄科林电气股份有限公司 | Safety monitoring method and device for electric energy meter and electric energy meter |
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