CN207366613U - A kind of single-phase intelligent electric energy meter of replaceable battery - Google Patents
A kind of single-phase intelligent electric energy meter of replaceable battery Download PDFInfo
- Publication number
- CN207366613U CN207366613U CN201721107496.8U CN201721107496U CN207366613U CN 207366613 U CN207366613 U CN 207366613U CN 201721107496 U CN201721107496 U CN 201721107496U CN 207366613 U CN207366613 U CN 207366613U
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- China
- Prior art keywords
- electric energy
- energy meter
- intelligent electric
- resistance
- phase intelligent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of single-phase intelligent electric energy meter of replaceable battery, including single-phase intelligent electric energy meter body, and the single-phase intelligent electric energy meter body is equipped with battery compartment, the battery case equipped with battery is placed with the battery compartment.The Clock battery of traditional electric energy meter circuit plate is welded on to place by designing a battery compartment, battery compartment is placed in communication module storehouse right, battery can be directly replaced after opening the side flip of nameplate, it is time saving and energy saving, greatly reduce use cost.
Description
Technical field
It the utility model is related to intelligent electric energy meter design field, the single-phase intelligent electricity of specifically a kind of replaceable battery
Can table.
Background technology
China's intelligent electric meter industry development is more quick.Calculated according to bid data, at present the intelligent electric meter in state's mesh sheet area
Coverage rate has reached 80%, and nationwide coverage rate is also up to more than 70%, and intelligence has been issued from national grid in 2009
Can electric energy meter standard, single-phase electric energy meter rate electric energy, logout etc. have been done with the relevant function of clock accuracy very high
It is required that.Up to now state's net has added up bid intelligent electric meter 4.77 hundred million, wherein 2014 and 2015, the intelligence of national grid
Ammeter bid quantity has been above 90,000,000.2016, national grid will start a collection of intelligent distribution network demonstrative project, strengthen
Old metering device upgrading, new clothes intelligent electric energy meter 60,580,000.
With the large batch of application of intelligent electric energy meter, found in site of deployment, most of failure as (rate electric energy is chaotic,
Generation time in logout is not to, anti-stealing electricity function failure etc.) all it is to cause clock to mix because Clock battery is under-voltage
Caused by unrest.
Traditional single-phase intelligent electric energy meter Clock battery is welded on internal circuit board, and factory can only be returned by replacing battery,
Take time and effort, it is of high cost.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of single-phase intelligent electric energy meter of replaceable battery, design
One battery compartment is welded on the Clock battery of traditional electric energy meter circuit plate to place, and battery compartment is placed in communication module storehouse right,
Battery can be directly replaced after opening the side flip of nameplate, it is time saving and energy saving, greatly reduce use cost.
The utility model embodiment provides a kind of single-phase intelligent electric energy meter of replaceable battery, including single-phase intelligent electric energy
Table body, the single-phase intelligent electric energy meter body are equipped with battery compartment, the battery case equipped with battery are placed with the battery compartment.
Further, the single-phase intelligent electric energy meter body is internally provided with super capacitor and switching circuit, the switching
The input terminal connection intrinsic control chip of single-phase intelligent electric energy meter of circuit, the output terminal of the switching circuit connect electricity respectively
Battery case and super capacitor in the storehouse of pond.
Further, the intrinsic control chip of single-phase intelligent electric energy meter uses chip FM33A048.
Further, the switching circuit includes resistance R1, and resistance R1 mono- terminates battery case cathode, the resistance R2 other ends
Connecting resistance R2 one end, parallel diode group Q2 cathodes, parallel diode group Q2 anode connect the VDD pins of control chip respectively, and
Diode Q2 anode are grounded by resistance R4；The resistance R2 other ends connect capacitance C1 one end, resistance R3 one end respectively, and capacitance C1 is another
End, the resistance R3 other ends are grounded；The VDD pins of control chip meet capacitance C2 one end, capacitance C3 one end, diode group Q1 respectively
The anode of one diode, resistance R6 one end, control chip VSS pins, the capacitance C2 other ends, the capacitance C3 other ends are grounded,
The cathode of diode group mono- diode of Q1 connects VDD1, diode group Q1 another diode cathode respectively, and diode group Q1 is another
The anode of one diode meets VDD2；Resistance R6 it is another termination series diode group Q3 anode, cathode connect by resistance R5
The tie point of two diodes is connected with the cathode of super capacitor CD1 in VDD1, series diode group Q3, super capacitor CD1's
Anode is grounded.
Further, diode group Q1 uses two BAT54A diodes.
Further, parallel diode group Q2 uses two BAT54C diodes in parallel.
Further, series diode group Q3 uses the BAT54S diodes of two series connection.
The effect provided in utility model content is only the effect of embodiment, rather than whole effects that utility model is all
Fruit, a technical solution in above-mentioned technical proposal has the following advantages that or beneficial effect：
1st, the Clock battery of traditional electric energy meter circuit plate is welded on to place by designing a battery compartment, battery compartment is put
In communication module storehouse right, battery can be directly replaced after opening the side flip of nameplate.
2nd, switching circuit and super capacitor are devised, when clock battery undervoltage, liquid crystal display shows battery undervoltage symbol, into
Row battery undervoltage is alarmed, and reminds user to replace battery, battery undervoltage situation, keeps clock more than 2 days batteries of correct timing to remove
Afterwards, clocking error accuracy is less than 2S/d, and flexibly, cleverly circuit realizes super capacitor, battery powered automatic switchover, without
Human intervention.
Brief description of the drawings
Fig. 1 is a kind of single-phase intelligent electric energy meter schematic diagram of the utility model；
Fig. 2 is switching circuit schematic diagram.
In Fig. 1：1 lead sealing lid, nameplate on 2,3 times nameplates, 4 terminal cap lead sealing screws, 5 battery compartments, 6 renovate lead sealing screw, and 7
Communication module, 8 cover lead sealing screws.
Embodiment
In order to clarify the technical characteristics of the invention, below by embodiment, and its attached drawing is combined, to this reality
It is described in detail with new.Following disclosure provides many different embodiments or example is used for realizing the utility model
Different structure.In order to simplify the disclosure of the utility model, hereinafter the component and setting of specific examples are described.In addition,
The utility model can in different examples repeat reference numerals and/or letter.This repetition is to simplify and clear mesh
, the relation between itself not indicating discussed various embodiments and/or setting.It is it should be noted that illustrated in the accompanying drawings
Component is not drawn necessarily to scale.The utility model eliminates description to known assemblies and treatment technology and process to avoid not
Necessarily limit the utility model.
A kind of single-phase intelligent electric energy as shown in Figure 1, including housing and internal mainboard, be provided with lead sealing lid 1, upper nameplate 2,
Lower nameplate 3, terminal cap lead sealing screw 4, battery compartment 5, renovate lead sealing screw 6, communication module 7, cover lead sealing screw 8.
Wherein, lead sealing lid, terminal cap lead sealing screw, cover lead sealing screw are electricity stealings in order to prevent, and upper nameplate is main
The manufacturing license number of manufacturer, and the examination criteria of institute's foundation are described, the instruction explanation for also having luminous tube, lower nameplate
The main model for marking product, specification, meter constant, degree of protection, the metering grade of table and vendor name and trade mark；It is described
The battery case equipped with battery is placed with battery compartment, lithium battery is equipped with battery case, can be under powering-off state, there is provided during ammeter
The power supply of clock, if live battery undervoltage can take out battery case, replaces battery；Communication module can install carrier module, micro-
Power wireless module, realizes the copy reading to ammeter data.
The single-phase intelligent electric energy meter body is internally provided with super capacitor and switching circuit, the input of the switching circuit
The end connection intrinsic control chip of single-phase intelligent electric energy meter, the output terminal of the switching circuit connect the electricity in battery compartment respectively
Pond box and super capacitor.
As shown in Fig. 2, the switching circuit includes resistance R1, resistance R1 mono- terminates battery case cathode, and resistance R2 is another
Connecting resistance R2 one end, parallel diode group Q2 cathodes, parallel diode group Q2 anode connect the VDD pins of control chip respectively at end,
And diode Q2 anode are grounded by resistance R4；The resistance R2 other ends connect capacitance C1 one end, resistance R3 one end respectively, and capacitance C1 is another
One end, the resistance R3 other ends are grounded；The VDD pins of control chip connect capacitance C2 one end, capacitance C3 one end, diode group respectively
The anode of mono- diode of Q1, resistance R6 one end, control chip VSS pins, the capacitance C2 other ends, the capacitance C3 other ends connect
Ground, the cathode of diode group mono- diode of Q1 meet VDD1, diode group Q1 another diode cathode, diode group Q1 respectively
The anode of another diode meets VDD2；Resistance R6 it is another termination series diode group Q3 anode, cathode connect by resistance R5
The tie point of two diodes is connected with the cathode of super capacitor CD1 in VDD1, series diode group Q3, super capacitor CD1's
Anode is grounded.Wherein, the intrinsic control chip of single-phase intelligent electric energy meter uses chip FM33A048, diode group Q1 to use two
A BAT54A diodes, parallel diode group Q2 use two BAT54C diodes in parallel, and series diode group Q3 uses two
The BAT54S diodes of a series connection.
Switching circuit operation principle is as follows：
VDD1 be by municipal administration power supply 220V conversion 5V, when electric energy meter plus external power supply 220V, VDD1 at voltage be+
Voltage is about 4.8V at 5V, VCPU, and lithium battery and super capacitor are all in cut-off state at this time, and MCU operating voltages are by 4.8V
There is provided.Meanwhile VDD1 charges by current-limiting resistance R5 to super capacitor CD1.
When the firm power down of municipal administration power supply 220V, voltage falls to 0V at VDD1.At this time, voltage is about on super capacitor
The voltage of 4.8V, lithium battery B1 are 3.6V, and super-capacitor voltage is higher than lithium battery voltage, and MCU operating voltages are at this time by super electricity
Hold and provide.
Power after a period of time, super capacitor CD1 voltages decline, and when voltage is less than 3.6V, MCU operating voltages are by battery
3.6V provide.
In the case of electric energy meter power-off and battery undervoltage, battery can be replaced, electric energy meter is in super low-power consumption state, MCU
Only need to run clock circuit, super-capacitor voltage only supplies MCU internal clock circuits at this time, and maintains the correct timing of clock extremely
It is 2 days few.
Ultracapacitor storage energy in the electric charge isolated, area for storing electric charge is bigger, the electricity isolated
Lotus is more intensive, its capacitance is bigger.Its technical characteristic is as follows：
A. charging rate is fast, and charging can reach more than the 95% of its rated capacity in 10 seconds~10 minutes；
B. service life cycle is grown, and depth charge and discharge cycles access times are up to 1~500,000 times；
C. energy conversion efficiency is high, and process losses are small, high current energy circulation efficiency >=90%.
Ultracapacitor is the capacitor using electric double layer principle.When applied voltage is added to two pole plates of ultracapacitor
When upper, as ordinary capacitor, the positive electrode storage positive charge of pole plate, negative plate storage negative electrical charge, in ultracapacitor
Under the electric field action that electric charge produces on two-plate, in electrolyte with forming opposite electric charge on interelectrode interface, to balance electricity
The internal electric field of liquid is solved, this positive charge and negative electrical charge are extremely short between positive and negative charge on the contact surface between two different phases
Gap arrangement is on opposite position, this charge distribution layers is called electric double layer, therefore capacitance is very.Electric energy meter power-off and
In the case of battery undervoltage, super capacitor is only powered for clock.
Calculate in the ideal case, electric energy meter 6 μ A, MCU normal working voltages of clock power consumption after low-power consumption stabilization are
4.8V, in low-power consumption, minimum operating voltage is 1.8V, super capacitor 1.5F, clock uptime T=C* Δs V/I=
1.5F* (4.8-1.8) V/6*10^6A=7.5 × 10^5s ≈ 8.6 days.
Electric energy meter is after reference voltage loads 10min, by clock of power meter and during the standard time pair, further takes out clock electricity
Pond, at this time super capacitor power, ammeter enters low-power consumption mode, and crystal oscillator built in MCU and hardware compensating function, realization are gone
Except the frequency compensation process of client.Electric energy meter in the event of a power failure, stands 2 days.Clock battery is put back into electric energy meter battery
Storehouse, electric energy meter power on.Meter clock is no more than 2s with standard time relative error.
Have been carried out being described in detail although specification and drawings and examples create the utility model, ability
Field technique personnel should be appreciated that still can create technical scheme is modified or replaced equivalently to the utility model；And all are not departed from
The technical solution for the spirit and scope that the utility model is created and its improvement, it is encompassed by the guarantor that the utility model creates patent
Protect among scope.
Claims (6)
1. a kind of single-phase intelligent electric energy meter of replaceable battery, including single-phase intelligent electric energy meter body, it is characterized in that：The list
Phase intelligent electric energy meter body is equipped with battery compartment, and the battery case equipped with battery is placed with the battery compartment；The single-phase intelligent electricity
Energy table body is internally provided with super capacitor and switching circuit, the input terminal connection single-phase intelligent electric energy meter sheet of the switching circuit
Internal control chip, the output terminal of the switching circuit connect battery case and super capacitor in battery compartment respectively.
2. a kind of single-phase intelligent electric energy meter of replaceable battery according to claim 1, it is characterized in that：Single-phase intelligent electric energy
The intrinsic control chip of table uses chip FM33A048.
3. a kind of single-phase intelligent electric energy meter of replaceable battery according to claim 1, it is characterized in that：The switching electricity
Road includes resistance R1, and resistance R1 mono- terminates battery case cathode, resistance R2 other ends difference connecting resistance R2 one end and union II pole
Pipe group Q2 cathodes, parallel diode group Q2 anode connect the VDD pins of control chip, and diode Q2 anode pass through resistance R4
Ground connection；The resistance R2 other ends connect capacitance C1 one end, resistance R3 one end respectively, and the capacitance C1 other ends, the resistance R3 other ends are equal
Ground connection；The VDD pins of control chip connect capacitance C2 one end, capacitance C3 one end, diode group Q1 mono- diode respectively
Anode, resistance R6 one end, control chip VSS pins, the capacitance C2 other ends, the capacitance C3 other ends are grounded, diode group
The cathode of mono- diode of Q1 connects VDD1, diode group Q1 another diode cathode, another two pole of diode group Q1 respectively
The anode of pipe meets VDD2；Resistance R6 it is another termination series diode group Q3 anode, cathode VDD1 is connect by resistance R5, go here and there
The tie point of two diodes is connected with the cathode of super capacitor CD1 in union II pole pipe group Q3, and the anode of super capacitor CD1 connects
Ground.
4. a kind of single-phase intelligent electric energy meter of replaceable battery according to claim 3, it is characterized in that：Diode group Q1
Using two BAT54A diodes.
5. a kind of single-phase intelligent electric energy meter of replaceable battery according to claim 3, it is characterized in that：Parallel diode group
Q2 uses two BAT54C diodes in parallel.
6. a kind of single-phase intelligent electric energy meter of replaceable battery according to claim 3, it is characterized in that：Series diode
Group Q3 uses the BAT54S diodes of two series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721107496.8U CN207366613U (en) | 2017-08-31 | 2017-08-31 | A kind of single-phase intelligent electric energy meter of replaceable battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721107496.8U CN207366613U (en) | 2017-08-31 | 2017-08-31 | A kind of single-phase intelligent electric energy meter of replaceable battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207366613U true CN207366613U (en) | 2018-05-15 |
Family
ID=62351831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721107496.8U Withdrawn - After Issue CN207366613U (en) | 2017-08-31 | 2017-08-31 | A kind of single-phase intelligent electric energy meter of replaceable battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207366613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356791A (en) * | 2017-08-31 | 2017-11-17 | 中电装备山东电子有限公司 | A kind of single-phase intelligent electric energy meter of replaceable battery |
-
2017
- 2017-08-31 CN CN201721107496.8U patent/CN207366613U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356791A (en) * | 2017-08-31 | 2017-11-17 | 中电装备山东电子有限公司 | A kind of single-phase intelligent electric energy meter of replaceable battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180515 Effective date of abandoning: 20230523 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180515 Effective date of abandoning: 20230523 |