CN101435834A - Modular assembled electrical energy meter - Google Patents

Modular assembled electrical energy meter Download PDF

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Publication number
CN101435834A
CN101435834A CNA2007101696744A CN200710169674A CN101435834A CN 101435834 A CN101435834 A CN 101435834A CN A2007101696744 A CNA2007101696744 A CN A2007101696744A CN 200710169674 A CN200710169674 A CN 200710169674A CN 101435834 A CN101435834 A CN 101435834A
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CN
China
Prior art keywords
electric energy
line
circuit
signal
modular
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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CNA2007101696744A
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Chinese (zh)
Inventor
万家盛
汪志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei Shengjia Wiring Co Ltd
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Hubei Shengjia Wiring Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hubei Shengjia Wiring Co Ltd filed Critical Hubei Shengjia Wiring Co Ltd
Priority to CNA2007101696744A priority Critical patent/CN101435834A/en
Priority to EP08839406A priority patent/EP2209011A1/en
Priority to PCT/CN2008/001751 priority patent/WO2009049499A1/en
Publication of CN101435834A publication Critical patent/CN101435834A/en
Priority to US12/762,541 priority patent/US7859246B2/en
Pending legal-status Critical Current

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Abstract

The invention relates to an electrical energy meter which can be modularizedly assembled. The electrical energy meter comprises a power line access module and at least one modularized electrical energy meter, wherein the power line access module comprises a phase line access component and a zero line access component which are provided with an access end and an output end respectively; the access end of the phase line access component is connected with a phase line of a power line; the access end of the zero line access component is connected with a zero line of the power line; each modularized electric energy meter is provided with the phase line access end, the zero line access end, the phase line output end and the zero line output end and is used for metering the electrical energy values output by the phase line access end and the zero line access end of the power line of each user; the output end of the phase line access component is connected with the phase line access end; the phase line output end is connected with the phase line output line; the output end of the zero line access component is connected with the zero line access end; the number of the zero line output line is connected with the zero line output end; and the power line access module and the modularized electrical energy meter are arranged on a box body through modularized characteristic and are distributed.

Description

But the electric energy meter of modularization assembling
Technical field
What the present invention relates to is a kind of Application of Power Metering Instruments, but particularly be that a kind of to be the center with the modularization idea expand the electric energy meter of the modularization assembling that is connected to form by multiple module.
Background technology
Along with expanding economy, the national economy every field improves constantly the dependence of electric power energy, in order to measure the quantity with electric consumption, the on-the-spot realization of electric power electricity consumption is effectively managed, so Application of Power Metering Instruments is arisen at the historic moment, and become a focus direction of constantly bringing forth new ideas in the power technology field.
Mainly be electric energy meter for the existing power metering outfit, its can for single epi-position electric energy meter also can be multi-epitope electric energy meter, but find still to exist following defective through for many years management of power use practice;
At first, because manufacturer is various, the difference of production product specification, therefore in the on-the-spot unification that is difficult to the realization standard of power department electricity consumption, often in order to realize multi-functional requirement, therefore will increase auxiliary device around existing modular electric energy metering machine, and cause the electric-power metering set of equipments bulky, production cost increases;
Secondly, in case power department changes to the management expectancy or the standard at electricity consumption scene, power supply department just need exert again the electric-power metering set of equipments to be changed transformation, and original product just can only be eliminated, and the cost of power supply department is wasted greatly;
Once more, for power department, existing power metering set of equipments needs a large amount of winding displacement wirings in application process, need expend very big cost of labor, simultaneously numerous and jumbled construction package is given to install and has correctly been brought great difficulty, be unfavorable for the on-the-spot realization of electricity consumption fine-grained management, use electrical loss thereby caused;
At last, in a single day existing power metering set of equipments breaks down or needs periodic replacement, and it is all superseded just can only to put in order table, thereby the electric-power metering set of equipments that more renews has caused overlapping investment, for user and power department have increased cost.
Creator of the present invention through research and practice for a long time, adopts the standardized thought of a kind of modularization finally, has obtained this creation.
Summary of the invention
The objective of the invention is to, but the electric energy meter that provides a kind of modularization to assemble, in order to overcome above-mentioned defective.
For achieving the above object, the technical solution used in the present invention is, but the electric energy meter that provides a kind of modularization to assemble, and it comprises: a casing wherein, also comprises:
One line of electric force access module, it comprises that phase line inserts assembly and zero line inserts assembly, it has incoming end and output terminal respectively, the incoming end of described phase line access assembly is connected with the phase line in the line of electric force, and the incoming end of described zero line access assembly is connected with the zero line in the described line of electric force;
At least one modular electric energy metering machine, described each modular electric energy metering machine has phase line incoming end and zero line incoming end and line output terminal and zero line output terminal mutually, picks out end and zero line picks out the energy value that end is exported in order to the phase line of measuring each custom power line;
The output terminal that described phase line inserts assembly is connected with described modular electric energy metering machine phase line incoming end, and described modular electric energy metering machine phase line output terminal links to each other with the phase line output line; The output terminal that described zero line inserts assembly is connected with the zero line incoming line, and described modular electric energy metering machine zero line output terminal links to each other with the zero line output line;
Described line of electric force access module and described modular electric energy metering machine are arranged in the described casing with modular characteristics, arrange;
Preferable, described casing has a line of electric force input interface, and the output interface of zero line output line and phase line output line, and described casing has a cap;
Preferable, described modular electric energy metering machine also comprises:
One box body;
One power supply unit is in order to provide power for operation;
One electric energy metrical unit calculates and to enter via described phase line incoming end and zero line incoming end, and the energy value that is consumed by the user;
One pulse signal output unit, the energy value that described electric energy metrical unit is calculated is converted into the pulse signal output that is directly proportional with described energy value;
Described power supply unit, electric energy metrical unit and pulse signal output unit are arranged in the described box body, and encapsulate by a cap, and described phase line incoming end and line output terminal mutually are arranged at the two ends of described box body;
Preferable, described electric energy metrical unit, it comprises:
One current signal Acquisition Circuit is in order to the current signal on the real-time collection line of electric force;
One voltage signal acquisition circuit is in order to the voltage signal on the real-time collection line of electric force;
One computing and treatment circuit obtain the instantaneous power value in order to described current signal and described voltage signal are multiplied each other, and obtain the energy value of a determining time by integrator;
Preferable, described phase line inserts assembly and described zero line access assembly all is positioned at described modular electric energy metering machine homonymy;
Perhaps described phase line inserts assembly and described zero line inserts the heteropleural that assembly is positioned at described modular electric energy metering machine;
Preferable, described phase line inserts assembly and zero line inserts assembly dislocation or stacked setting;
Preferable, described phase line inserts assembly and comprises:
At least one phase line is divided the family structural member, it makes for conductive material, and has an incoming end, and described incoming end is connected with phase line in the described line of electric force, also has at least one phase line output terminal, itself and corresponding being connected of phase line incoming end of described modular electric energy metering machine;
Described zero line inserts assembly and comprises: at least one zero line branch family structural member, it makes for conductive material, and has an incoming end, described incoming end is connected with the zero line of described line of electric force, also has at least one phase line output terminal, itself and corresponding being connected of phase line incoming end of described modular electric energy metering machine, wherein said phase line branch family structural member divides the output terminal number of family structural member identical with zero line;
Also comprise: protective cover and low protection cover on two groups, it makes for the insulation heat-barrier material, and the exposed part that described phase line is inserted assembly and zero line access assembly coats respectively, and makes described phase line branch family structural member and zero line branch family structural member mutually insulated;
Preferable, described power supply unit comprises:
One power-switching circuit, it carries out transformation with power voltage line handles, in order to the power for operation of modular electric energy metering machine to be provided.
One standby power supply;
One charging circuit, it is connected with the output terminal of described power-switching circuit, and to described standby power supply charging;
One detecting commutation circuit, whether it has voltage output in order to detect described power-switching circuit, and when described power-switching circuit no-voltage was exported, starting described standby power supply provided power for operation;
Preferable, also comprise:
The one end power-off modular of registering one's residence, enter one group of described phase line output line that a certain appointment electricity consumer uses the zone in order to cut-out, or one group of described phase line output line and zero line output line, the described end power-off modular of registering one's residence is at least one isolating switch or relay, and its quantity is consistent with the quantity of described modular electric energy metering machine;
One line ball block assembly is arranged on described phase line output line and the zero line output line, is convenient to installation and maintenance, and makes the cabling standard;
Preferable, also comprise:
One modular electric energy metering machine front end power-off modular, enter one group of described phase line incoming line of a certain appointment electricity consumer modular electric energy metering machine in order to cut-out, described modular electric energy metering machine front end power-off modular is at least one isolating switch or relay, and its quantity is consistent with the quantity of described modular electric energy metering machine;
Preferable, also comprise: a control module, in order to receiving the status signal of each modular assembly, and send control signal to each modular assembly, described control module is single-chip microcomputer, embedded system or FPGA (Field Programmable Gate Array) control;
Preferable, also comprise: a modular electric energy metering machine fault detection unit, it comprises:
Whether one current monitoring circuit has electric current to flow through in order to monitor described phase line input end;
Whether one pulse observation circuit has pulse signal output in order to monitor described pulse signal output unit;
One monitoring decision circuitry, when described phase line input end has electric current to flow through, and the output of described pulse signal output unit pulse-free signal judges that then described modular electric energy metering machine breaks down;
Preferable, described current monitoring circuit comprises:
One telefault, it is set on the described phase line;
One comparer, one input end are provided with a reference voltage, and its other end is connected with the output terminal of described telefault;
Described pulse observation circuit comprises:
One comparer, one input end are provided with a reference voltage, and its other end is connected with the output terminal of described pulse signal output unit;
Described monitoring decision circuitry is described control module, the one input interface links to each other with the output terminal of described current monitoring circuit, one input interface links to each other with described pulse observation circuit output terminal, judges that by described control module described modular electric energy metering machine breaks down;
Preferable, also comprise: it comprises a current detecting unit: a current measuring element and comparer, described current measuring element is arranged on described zero line and inserts the assembly lower end, and the output terminal of described comparer is connected with described control module status signal input end;
Preferable, for single-phase current, described current measuring element is a mutual inductor, it is set on live wire output line and the described zero line output line, and the induced signal that obtains is transferred to the in-phase input end of described comparer, the inverting input of described comparer is set a reference voltage, and when described electric current out of trim, the output terminal of described comparer is exported a high potential signal;
Perhaps described current measuring element is one group of copper-manganese sheet, it comprises the first copper-manganese sheet and the second copper-manganese sheet, it is connected with the zero line output line with the live wire output line respectively, the two ends of the described first copper-manganese sheet produce first voltage, the described second copper-manganese sheet produces second voltage, by amplifying circuit separately signal is amplified, and transfers to the in-phase input end and the inverting input of described comparer through buffer circuit, the output terminal of described comparer is exported a high potential signal when both are unequal;
Preferable, for single-phase current, described current measuring element is a mutual inductor, it is set on the live wire output line, and the induced signal that obtains is transferred to the in-phase input end of described comparer, the inverting input of described comparer is set a reference voltage, and when load was excessive, the output terminal of described comparer was exported a high potential signal;
Perhaps described current measuring element is a copper-manganese sheet, it is connected with the live wire output line, the two ends of described copper-manganese sheet produce a voltage, signal is amplified, also transfers to through buffer circuit the in-phase input end of described comparer by amplifying circuit, the inverting input of described comparer is set a reference voltage, when described voltage was higher than reference voltage, the output terminal of described comparer was exported a high potential signal;
Preferable, also comprise: a counting unit, it comprises:
One data counts circuit, it receives the pulse signal of described pulse signal output unit output, and the counting that carries out energy value;
One internal communication circuit, it links together described data counts circuit and described control module;
One memory circuit, it is connected with described data counts circuit, when having a power failure, with the energy value of described data counts circuit accumulative total, stores in the described memory circuit; When restoring electricity, read the energy value of storing in the described memory circuit by described data counts circuit;
Preferable, also comprise: prevent the unit of casing and/or box body unnormal unlocking, it comprises: one opens an observation circuit or an executive circuit, wherein,
Described unlatching observation circuit, whether it opens in order to monitoring casing cap and/or box body cap, sends monitor signal and give described control module when opening, and generates a control signal by described control module;
Described executive circuit, it receives described control signal, and produces the line of electric force connection of reporting to the police and/or cutting off the place circuit;
Preferable, described unlatching observation circuit is a pressure transducer or travel switch, wherein,
Described pressure transducer, it is arranged at the cap place of described casing cap and/or box body, when the pressure at cap place during less than a certain threshold value, produces described monitor signal;
Described travel switch, it is arranged at the cap place of described casing cap and/or box body, when encapsulation place does not have the space, described travel switch no signal output, on the contrary then travel switch produces described monitor signal;
Preferable, also comprising the display process module, it comprises: single household display unit and/or whole display unit, wherein,
Described single household display unit comprises: a display screen, and it is embedded on the box body of each described modular electric energy metering machine;
One drive circuit, it drives described display screen and shows power consumption according to the data-signal of the described counting unit output that receives;
Described whole display unit comprises: a display screen, and it is embedded on described casing;
One drive circuit, it drives described display screen and shows power consumption according to the data-signal that receives described counting unit output;
One card reader, it is connected with described control module, by reading the information of radio-frequency identification card, sends data-signal to described control module, produce a control signal by described control module, make the data-signal of described counting unit output give described driving circuit;
Preferable, described radio-frequency identification card blocks and/or inquirying card for purchasing electricity, wherein,
The described electricity card of purchasing is to described card reader emission radio-frequency (RF) identification command information, the described electric quantity data of purchasing is transferred to described control module, send data-signal by described control module to described counting unit, after the memory circuitry stores user of described counting unit purchases electric quantity data, described data counts circuit power consumption data and user purchase electric quantity data and compare, obtain difference, demonstrate by described whole display unit;
When described difference is lower than a certain threshold value, described relay and/or isolating switch disconnect, stop power supply to the user,, and send control command by described control module and make described relay and/or reset of breaker to described card reader emission radio-frequency (RF) identification command information by the described electricity card purchased;
Described inquirying card is to described card reader emission radio-frequency (RF) identification command information, and send control signal to described counting unit by described control module, the historical power consumption data of user of the memory circuitry stores of described counting unit are demonstrated by described whole display unit;
Preferable, also comprise an acoustic-optic alarm, under abnomal condition, send sound and light alarm;
Preferable, also comprising a wireless energy control units, it comprises:
One wireless signal dispensing device is in order to send wireless control signal;
One wireless signal receiving circuit is in order to receive outside wireless control signal;
One decoding circuit, it is connected with described wireless signal receiving circuit, obtains corresponding digital controlled signal;
One decoding scheme is resolved described digital controlled signal and is converted to command information, controls resetting or disconnecting of described relay and/or isolating switch;
Preferable, also comprising an expansion module, it is used for function expansion of the present invention, and described expansion module is connected with described control module by a standard interface, realizes plug and play;
Preferable, described expansion module comprises: but management control center that unusual condition that the electric energy meter that a communication unit is assembled described modularization in order to realization occurs or energy value send to far-end and/or user's information receiving terminal are realized abnormal monitoring and remote meter reading;
Described communication unit transmits one of them mode with carrier-wave transmission, Ethernet transmission, PSNT Network Transmission, GPRS transmission, GSM transmission or CDMA and transmits.
The beneficial effect that has of the present invention is compared with the prior art,
But the electric energy meter of one, the present invention modularization assembling is based on existing two modular electric energy metering machines that advance scene 2, by modular characteristics can electricity consumption situ metrology administrative institute of integrated power department need various functions, and dwindled volume greatly;
Two, because but the modular characteristics of the electric energy meter of the present invention's modularization assembling makes production division realize requiring to customize production according to electricity consumption department, thereby reached the scale High-efficient Production, reduced production cost;
Three, but the electric energy meter by the assembling of the present invention's modularization makes power department greatly reduce metering overall investment cost and installation work-hour in application process, provide the on-the-spot fine-grained management of electricity consumption necessary technical conditions simultaneously, used electrical loss thereby reduced;
But the electric energy meter of four, the present invention modularization assembling in use arbitrarily functional module elements break down or when regularly replacing,, avoided overlapping investment by changing corresponding modular unit, for user and power department have been saved cost.
Description of drawings
But Fig. 1 is the illustrative view of functional configuration of the embodiment one of the electric energy meter of the present invention's modularization assembling;
But Fig. 2 is the functional block diagram of the electric energy meter module electric energy metering device of the present invention's modularization assembling;
But Fig. 3 is the functional block diagram of the metering units of the electric energy meter module electric energy metering device of the present invention's modularization assembling;
But Fig. 4 is the functional block diagram of the power supply unit of the electric energy meter module electric energy metering device of the present invention's modularization assembling;
But Fig. 5 A is the front view of box body structure one preferred embodiment of the electric energy meter module electric energy metering device of the present invention's modularization assembling;
But Fig. 5 B is the front view of another preferred embodiment of box body structure of the electric energy meter module electric energy metering device of the present invention's modularization assembling;
But Fig. 6 A inserts the STRUCTURE DECOMPOSITION figure of assembly one preferred embodiment for the phase line of the electric energy meter of the present invention's modularization assembling;
But Fig. 6 B inserts the STRUCTURE DECOMPOSITION figure of assembly one preferred embodiment for the zero line of the electric energy meter of the present invention's modularization assembling;
But Fig. 7 A is the structure diagram one of electric energy meter one preferred embodiment of the present invention's modularization assembling;
But Fig. 7 B is the structure diagram two of electric energy meter one preferred embodiment of the present invention's modularization assembling;
But Fig. 8 is the counting unit functional block diagram of the electric energy meter of the present invention's modularization assembling;
But Fig. 9 is the functional block diagram of the whole display module of the electric energy meter of the present invention's modularization assembling;
But Figure 10 is the functional block diagram of the independent displaying module of the electric energy meter of the present invention's modularization assembling;
One has the perspective view of the modular electric energy metering machine of independent displaying module in the electric energy meter that but Figure 11 is the present invention's modularization to be assembled;
But Figure 12 is the functional block diagram of modular electric energy metering machine fault detection unit in the electric energy meter of the present invention's modularization assembling;
Figure 12 A is the circuit diagram of modular electric energy metering machine failure detector circuit of the present invention;
But Figure 13 A is the electrical schematic diagram of current detection module preferred embodiment one in the electric energy meter of the present invention's modularization assembling;
But Figure 13 B is the electrical schematic diagram of current detection module preferred embodiment two in the electric energy meter of the present invention's modularization assembling;
But Figure 13 C is the electrical schematic diagram of current detection module preferred embodiment three in the electric energy meter of the present invention's modularization assembling;
But Figure 13 D is the electrical schematic diagram of current detection module preferred embodiment four in the electric energy meter of the present invention's modularization assembling;
But Figure 14 prevents the functional block diagram of casing and/or box body unnormal unlocking module for current detection module in the electric energy meter of the present invention's modularization assembling;
But Figure 15 A prevents the structural representation of open detection circuit embodiments one in casing and/or the box body unnormal unlocking module for current detection module in the electric energy meter of the present invention's modularization assembling;
But Figure 15 B prevents the structural representation of open detection circuit embodiments two in casing and/or the box body unnormal unlocking module for current detection module in the electric energy meter of the present invention's modularization assembling.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 1, but it is embodiment one illustrative view of functional configuration of the electric energy meter of the present invention's modularization assembling; It comprises:
One line of electric force access module 2, it comprises that phase line inserts assembly 21 and zero line inserts assembly 22, it has incoming end and output terminal respectively, the incoming end 2111 of described phase line access assembly is connected with the phase line in the line of electric force, and the incoming end 2211 of described zero line access assembly is connected with the zero line in the described line of electric force;
At least one modular electric energy metering machine 1, the output of the modular electric energy metering machine in the present embodiment and input are positioned at the same side of modular electric energy metering machine, described each modular electric energy metering machine 1 promptly has phase line incoming end 112 and zero line incoming end 111 and line output terminal 113 and zero line output terminal mutually for " two advance scene 2 ", in order to the phase line incoming end 112 that measures each custom power line and the energy value of zero line incoming end 111 outputs; Need to prove and only to adopt a modular electric energy metering machine 1 it only is a single subscriber's meter;
The output terminal that described phase line inserts assembly 21 is connected with described phase line incoming end 112, and described phase line output terminal 113 links to each other with the phase line output line; The output terminal 222 that described zero line inserts assembly 22 is connected with the zero line output line, and described zero line line output terminal links to each other with the zero line output line;
Above-mentioned various modules can be arranged in the casing 3 and also can an integrated form be arranged on the circuit board, and the present invention is to be that example carries out open description to be arranged at casing 3, but and are not limited to concrete form.
See also shown in Figure 2, but it is the functional block diagram of the electric energy meter module electric energy metering device of the present invention's modularization assembling, described modular electric energy metering machine 1 comprises: a line of electric force input-output unit, one power supply unit 14, an one electric energy metrical unit 12 and a pulse signal output unit 13, wherein, be with difference among above-mentioned Fig. 1, though all be " two advance scene 2 ", but among this figure, in the described line of electric force input-output unit: phase line incoming end 112 and zero line incoming end 111 are positioned at the upper end of described modular electric energy metering machine, phase line output terminal 113 and zero line output terminal are positioned at the lower end (that is to say that input and output are not in a side) of described modular electric energy metering machine, described phase line incoming end 112 is connected with phase line in the power circuit, and described phase line output terminal 113 is connected with the next stage power equipment with the zero line output terminal; Described power supply unit 14 provides power for operation in order to obtain the voltage that described phase line incoming end 112 and zero line incoming end 111 insert by other electricity consumption device that is converted to described modular electric energy metering machine 1 accordingly; Described electric energy metrical unit 12 is connected with described power supply unit 14, calculates the energy value via described phase line incoming end 112 and zero line incoming end 111; Described pulse signal output unit 13, it is connected with described electric energy metrical unit 12, the energy value that described electric energy metrical unit 12 is calculated is converted into the pulse signal output that is directly proportional with described energy value, and the pulse signal of generation can be used as the data input signal of other functional expansion unit.
But in fact for the electric energy meter of the present invention's modularization assembling, the combination of a plurality of functional modules is to constitute core concept of the present invention, but be aimed at the management of power use, described modular electric energy metering machine is its nucleus module, modular electric energy metering machine of the present invention is existing modular electric energy metering machine, the function of its management of power use function expansion is based on also that this a kind of modular thinking extends out with regard to unique user, we must introduce accordingly to two unit in its structure for this reason, are understanding better realization product of the present invention on its architecture basics with expectation those skilled in the art.
At first, see also shown in Figure 3, but it is the functional block diagram of the metering units of the electric energy meter module electric energy metering device of the present invention's modularization assembling, described electric energy metrical unit 12 is its core textures for described modular electric energy metering machine, it comprises: a current signal Acquisition Circuit 121, in order to the current signal on the real-time collection line of electric force; One voltage signal acquisition circuit 122 is in order to the voltage signal on the real-time collection line of electric force; One computing and treatment circuit 123, it comprises: a multiplier 1231 and an integrator 1232, by described multiplier 1231 described current signal and described voltage signal are multiplied each other and to obtain the instantaneous power value, the energy value that obtains in the determining time by described integrator 1232 then, and the energy value that obtains being converted to pulse signal output by a pulse signal output unit 13, described pulse signal output unit 13 can be a voltage/frequency conversion frequency dividing circuit.
Secondly, see also shown in Figure 4, but it is the functional block diagram of the power supply unit of the electric energy meter module electric energy metering device of the present invention's modularization assembling, it comprises: a power converting circuit 141, it carries out transformation with power voltage line and handles, in order to power for operation to be provided, described power converting circuit 141 is connected with zero line input end 111 with described phase line input end 112; One charging circuit 142, it is arranged between the output terminal and described standby power supply 143 of described power-switching circuit 141, in order to power to described standby power supply 143; One detecting commutation circuit 144, whether it has voltage output in order to detect described power-switching circuit 141, when described power-switching circuit 141 no-voltages are exported, start described standby power supply 143 and provide power for operation for the electricity consumption device of described modular electric energy metering machine 1, because the accumulate finite capacity of described standby power supply 143, therefore once the situation of power converting circuit 141 faults takes place, just must inform the user, perhaps cut off circuit 942 (isolating switch) and cut off subscriber's line to prevent management of power use department being caused waste of power resources and loss owing to described power supply unit 141 breaks down by a line of electric force, can certainly adopt an acoustic-optic alarm 941 to be connected with described detecting commutation circuit 144, when described power-switching circuit 141 no-voltages are exported, trigger the sound and light of alarm of described acoustic-optic alarm 941.
But for the electric energy meter of the present invention's modularization assembling, each modular electric energy metering machine 1 is all represented the basis of an isolated user management of power use, for the sake of security, box body should be set it is encapsulated, at first, see also shown in Fig. 5 A, but it is the front view of box body structure one preferred embodiment of the electric energy meter module electric energy metering device of the present invention's modularization assembling, the functional diagram of itself and Fig. 1 is corresponding, and it comprises: a base plate, in order to the device of the inner installing of carrying box body; One cap 152; it is located on the described base plate 150; described device is protected; be provided with phase line incoming end 112 in the lower end of described modular electric energy metering machine (homonymy); phase line output terminal 113; zero line incoming end 112 ' and zero line output terminal 113 '; be provided with locking hole 155 at described cap 152 upper surfaces; in order to be screwed onto with described base plate 150, on described cap 152, also have display screen form 158 by screw; a pulse matching hole 156 and a pulse indicator lamp hole 157 these all be and nucleus module of the present invention---the functional structure expansion of modular electric energy metering machine provides corresponding physical construction interface.
Secondly, see also shown in Fig. 5 B, but it is the front view of another preferred embodiment of box body structure of the electric energy meter module electric energy metering device of the present invention's modularization assembling, corresponding with the functional structure chart of above-mentioned Fig. 2, the difference of the structure shown in the structure of this figure box body and the above-mentioned Fig. 5 A is, be provided with phase line incoming end 112 in the upper end of described modular electric energy metering machine, zero line incoming end 112 ', be provided with phase line output terminal 113 and zero line output terminal 113 ' in described modular electric energy metering machine lower end, it is emphasized that for the structure of two above-mentioned modular electric energy metering machines, the output terminal of described pulse signal output unit 13 all is that a serial plug is arranged at (not shown) on the described base plate, be implemented in by plug and carry out the function expansion on the basis of described modular electric energy metering machine, but form the assembling of the present invention's modularization electric energy meter assembling be connected.
But at first need to prove for phase line in the line of electric force access module of the electric energy meter of the present invention's modularization assembling and insert the position relation that assembly and described zero line insert assembly, mainly according to the determining positions of modular electric energy metering machine phase line incoming end and zero line incoming end and zero line output terminal and line output terminal mutually, described phase line inserts assembly and described zero line inserts top or bottom (homonymy) that assembly all is positioned at described modular electric energy metering machine; Perhaps described phase line inserts assembly and described zero line inserts top and bottom (heteropleural) that assembly lays respectively at described modular electric energy metering machine, and wherein, described phase line inserts assembly and zero line inserts assembly dislocation or stacked.
See also shown in Fig. 6 A, but its phase line for the electric energy meter of the present invention's modularization assembling inserts the STRUCTURE DECOMPOSITION figure of assembly one preferred embodiment; Described phase line inserts assembly 21 and comprises:
At least one phase line is divided family structural member 211, it makes for conductive material, and has an incoming end 2111, described incoming end 2111 is connected with phase line in the described line of electric force, also has at least one phase line output terminal 2114, itself and 112 corresponding being connected of phase line incoming end of described modular electric energy metering machine 1; Also comprise: a protective cover 212 and a low protection cover 213 on one, it makes for the insulation heat-barrier material, and the exposed part of described phase line branch family structural member is coated, and gets an electric shock in order to preventing; Some screws 2115 are connected in order to the base plate with described casing 3, because the existence of described low protection cover 213 has prevented because of the influence of line of electric force heating to casing 3.
See also shown in Fig. 6 B, but its zero line for the electric energy meter of the present invention's modularization assembling inserts the STRUCTURE DECOMPOSITION figure of assembly one preferred embodiment; Described zero line inserts assembly 22 and comprises:
One zero line member bodies 221, the strip structure that it makes for conductive material, and have an incoming end 2211, described incoming end 2211 is connected with the zero line of described line of electric force; Also comprise: a protective cover 222 and a low protection cover 223 on one, it makes for the insulation heat-barrier material, the exposed part that described zero line is inserted assembly 22 coats, in order to prevent electric leakage and electric leakage, because inserting assembly 21, described phase line may have mutual overlapping with zero line access assembly 22, therefore by the existence of protective cover, make described phase line insert mutually insulated between assembly 21 and the zero line access assembly 22.
See also Fig. 7 A, shown in Fig. 7 B, but it is the structure diagram one of electric energy meter one preferred embodiment of the present invention's modularization assembling, structure diagram two, can clearly find, described line of electric force access module and nine modular electric energy metering machines 1 are arranged in the described casing 3, described casing 3 has a line of electric force input interface 31, and the output interface 32 of zero line output line and phase line output line, described casing 3 has a cap (not shown), wherein, modular electric energy metering machine among Fig. 7 A is the modular electric energy metering machine structure of Fig. 5 A, has therefore just determined described phase line access assembly 21 and zero line to insert the homonymy that assembly 22 will be positioned at described modular electric energy metering machine; Review, modular electric energy metering machine among Fig. 7 B is shown in the modular electric energy metering machine structure of Fig. 5 B, therefore just determined that described phase line inserts assembly 21 and zero line inserts the heteropleural that assembly 22 will be positioned at described modular electric energy metering machine, but still there is an overlapping in space, in casing 3, except above-mentioned parts, also comprise:
One modular electric energy metering machine front end power-off modular, it is arranged at described phase line and inserts between assembly 21 and the described modular electric energy metering machine 1, enter one group of described phase line incoming line of a certain appointment electricity consumer modular electric energy metering machine 1 in order to cut-out, described modular electric energy metering machine front end power-off modular is at least one isolating switch or relay, its quantity is consistent with the quantity of described modular electric energy metering machine 1, should be provided with nine group relaies or isolating switch (not shown) herein;
One registers one's residence holds power-off modular 72, it is arranged at the bottom of this casing 3, enter one group of described phase line output line that a certain appointment electricity consumer uses the zone in order to cut-out, or one group of described phase line output line and zero line output line, the described end power-off modular of registering one's residence is at least one isolating switch or relay, its quantity is consistent with the quantity of described modular electric energy metering machine, is provided with nine groups of isolating switchs or relay herein;
Need to prove, in the setting up procedure of reality, described as required modular electric energy metering machine front end power-off modular and the described end power-off modular of registering one's residence, it can all be arranged in the casing, also can one of them be arranged in the described casing.
Comprise in addition: a line ball block assembly 6, be arranged at phase line output line and the zero line that the phase line output terminal 113 of described modular electric energy metering machine 1 is connected and insert on the zero line output line of assembly 22, the purpose of setting is in order to make the cabling standard;
Many group current detection modules 5, it comprises: a current measuring element and comparer, in order to detect whether balance or transship of electric current, described current measuring element is arranged on described zero line and inserts assembly 22 lower ends, and the output terminal of described comparer is connected with described control module 8 status signal input ends;
Also comprise: a whole display module 4, it is arranged at the left side of described casing 3, and in order to show each user's power consumption, prepaying charge shows and the historical query display that realizes.
But in order to adapt to the electric energy meter function expansion needs of the present invention's modularization assembling, the invention provides a control module 8 independently, in order to receive the status signal of corresponding units or circuit, and send control signal to units corresponding and circuit, thereby but the realization of coordinating each function of electric energy meter of described modularization assembling also can be carried out condition monitoring simultaneously, described control module 8 is a single-chip microcomputer, embedded system or FPGA (Field Programmable Gate Array) control, selecting which kind of device is according to the requirement of data processing total amount, but require decision to the functional requirement of the electric energy meter of the present invention's modularization assembling and to the ultimate small product size of the present invention.
For the above-mentioned whole display module of mentioning, it is relevant with the historical aggregate-value of the power consumption of individual electricity consumer, need counting unit 42 for this reason, consumption to electric energy adds up, see also shown in Figure 8, but it is counting unit 42 functional block diagram of the electric energy meter of the present invention's modularization assembling, described counting unit 42 comprises: a data processing circuit 421, it receives the pulse signal of described pulse signal output unit 13 outputs, and carry out the energy value stored counts, also can directly obtain the energy value signal of described metering units 12; One internal communication circuit 423, it links together described data processing circuit 421 with described control module 8, it is transferred to described control module 8 one status signals, thereby makes described control module 8 produce control signal corresponding, is sent to corresponding receiving element or circuit; Also comprise: a memory circuit 422, it is connected with described data counts circuit 421, when having a power failure, with the energy value of described data counts circuit 421 accumulative totals, stores in the described memory circuit 422; When restoring electricity, read the energy value of storing in the described memory circuit 422 by described data counts circuit 421, and on the basis of this value, continue accumulative total energy value.
See also shown in Figure 9, but it is the functional block diagram of the whole display module of the electric energy meter of the present invention's modularization assembling, described whole display module comprises: a display screen 411, it is embedded on described casing 3; One drive circuit 412, it drives described display screen 411 and shows power consumption according to the data-signal that receives described counting unit 42 outputs; One card reader 431, it is connected with described control module 8, by reading the information of radio-frequency identification card 432, send data-signal to described control module 8, produce a control signal by described control module 8, make the data-signal of described counting unit 42 outputs give described driving circuit 412; Radio-frequency identification card 432 described here blocks and/or inquirying card for purchasing electricity, wherein,
The described electricity card of purchasing is to described card reader 431 emission radio-frequency (RF) identification command informations, the described electric quantity data of purchasing is transferred to described control module 8, send status signal by described control module 8 to described counting unit 42, after the memory circuit 422 storage users of described counting unit 42 purchase electric quantity data, the power consumption data of described data counts circuit 421 and user purchase electric quantity data and compare, obtain difference, demonstrate by described whole display unit;
When described difference is lower than a certain threshold value, the relay of described modular electric energy metering machine front end power-off modular and or isolating switch disconnect, stop power supply to the user, know command informations by the described electricity card purchased to described card reader 431 emission radio frequencies, and send control command by described control module 8 and make relay and/or reset of breaker in the described modular electric energy metering machine front end power-off modular;
Described inquirying card is to described card reader 431 emission radio-frequency (RF) identification command informations, and send control signal to described counting unit 42 by described control module 8, the historical power consumption data of user of memory circuit 422 storages of described counting unit 42 are demonstrated by described whole display unit;
For the ease of the control that resets of relay and/or isolating switch, this module also comprises a wireless energy control units, and it comprises:
One wireless signal dispensing device 444 is in order to send wireless control signal;
One wireless signal receiving circuit 443 is in order to receive outside wireless control signal;
One decoding circuit 442, it is connected with described wireless signal receiving circuit 443, obtains corresponding digital controlled signal;
One decoding scheme 441 is resolved described digital controlled signal and is converted to command information, controls resetting or disconnecting of described relay and/or isolating switch.
The independent displaying module that also can have oneself certainly for each electricity consumer, so just do not need to have the identification card of distinguishing function and just can see the electricity consumption data of oneself, see also shown in Figure 10, but it is the functional block diagram of the independent displaying module of the electric energy meter of the present invention's modularization assembling; A counting unit 42 and a display unit in described modular electric energy metering machine 1, have been increased, described counting unit 42 is connected with the output terminal of described metering units 12, thereby and the signal of its generation added up produce a data-signal, described display unit receives described data-signal, to be shown by the electric energy aggregate-value that electricity consumer consumes by corresponding module electric energy metering device 1, that is to say that present embodiment has possessed the function of a basic electric energy meter, wherein, described single household display unit comprises: a display screen 413, and it is embedded on the box body 15 of each described modular electric energy metering machine; One drive circuit 414, it drives described display screen 413 and shows power consumption according to the data-signal of described counting unit 42 outputs that receive; See also shown in Figure 11, but it is for one having the perspective view of the modular electric energy metering machine 1 of independent displaying module in the electric energy meter of the present invention's modularization assembling, it has display screen 413.
For present technology trends, self-checking function is a trend, as the high-end product of trend, also be according to having from detecting ability, see also shown in Figure 12, but it is the functional block diagram of modular electric energy metering machine fault detection unit in the electric energy meter of the present invention's modularization assembling, and it comprises:
One current detection circuit 911, whether the phase line input end 112 of monitoring described modular electric energy metering machine when electricity consumption has electric current to flow through; Whether one pulse-detecting circuit 912 has pulse signal output in order to monitor described pulse signal output unit 13; One monitoring decision circuitry 913, when described modular electric energy metering machine phase line input end 112 has electric current to flow through, and the output of described pulse signal output unit 13 pulse-free signals judges that then described modular electric energy metering machine 1 breaks down;
Certainly iff carrying out fault detect, do not reach the optimum efficiency that self-checking function is desired to reach and do not give with corresponding indication and move obviously to remain, therefore described modular electric energy metering machine fault detection unit also is used for a fault executive circuit 94 and combines, described fault executive circuit 94 comprises: acoustic-optic alarm 941, when finding that above-mentioned fault exists, carry out sound and light alarm, in order to remind electricity consumer modular electric energy metering machine 1 to have fault, indicate the reason that produces fault as the pilot lamp of employing different colours or different sound; One line of electric force open circuit 942, it adopts isolating switch, is arranged on the described line of electric force, when non-power failure fault takes place, cuts off the electric power supply that flows to electricity consumer; Need to prove described electric power detecting commutation circuit 114 and corresponding fault topworks 94 thereof, in fact it can be the described end power-off modular of registering one's residence, it has been set forth in the structure of above-mentioned power supply unit 14, here only be that its functional character is sorted out, no longer its structure is given unnecessary details, above-mentioned every detection simultaneously can make up and accept or reject according to the actual needs, become product from detecting unit.
See also shown in Figure 12 A, it is respectively the circuit diagram of modular electric energy metering machine failure detector circuit of the present invention; Described current detection circuit C4 comprises: a telefault 5L1, and it is set on the described phase line A; One comparer 5IC1, the one inverting input is provided with a reference voltage, its in-phase end is connected with the output terminal of described telefault 5L1, on described phase line A, there is electric current to flow through, inducing voltage signal compares with the reference voltage of comparer 5IC1 inverting input, thereby the output terminal that makes described comparer 5IC1 is exported a voltage signal, judges whether have electric current to flow through on the line of electric force by this voltage signal.
Described pulse-detecting circuit C3 comprises: a comparer 5IC2, and the one end of oppisite phase is provided with a reference voltage, and its in-phase end is connected with the output terminal of described pulse signal output unit 4; The output terminal of described comparer 5IC2 is connected with described detection decision circuitry, described detection decision circuitry is described control module, the one input interface links to each other with the output terminal of described current detection circuit C4, one input interface links to each other with described pulse-detecting circuit C3 output terminal, when the in-phase end of the comparer 5IC2 of described pulse-detecting circuit receives pulse signal, then it exports a noble potential, the comparer 5IC1 of described current detection circuit exports a noble potential to described control module, an inner predetermined time period of described control module, when described current detection circuit input high potential signal enters described control module, if in the described schedule time, do not have the high potential signal input of pulse-detecting circuit, think that then modular electric energy metering machine of the present invention breaks down.
See also shown in Figure 13 A, but it is the electrical schematic diagram of current detection module preferred embodiment one in the electric energy meter of the present invention's modularization assembling; For single-phase current, in order to detect whether balance of electric current, prevent from personnel are damaged and the electric energy loss, described current measuring element is mutual inductor L, it is set on live wire output line A and the described zero line output line N, the induced signal that obtains is transferred to the in-phase input end of described comparer IC1 through a rectification circuit C5, the inverting input of described comparer IC1 is set a reference voltage, when described electric current out of trim, the output terminal of described comparer IC1 is exported a high potential signal, current unbalance is described, then can and/or sends the instruction of cutting off subscribers feeder to relay;
See also shown in Figure 13 B, but it is the electrical schematic diagram of current detection module preferred embodiment two in the electric energy meter of the present invention's modularization assembling; For single-phase current, in order to detect whether balance of electric current, prevent that injury and electric energy that personnel are caused run off, described current measuring element is one group of copper-manganese sheet, it comprises the first copper-manganese sheet R1 and the second copper-manganese sheet R11, it is connected with zero line output line N with live wire output line L respectively, the two ends of the described first copper-manganese sheet R1 produce first voltage, the described second copper-manganese sheet R11 produces second voltage, it passes through signal amplification circuit C7 separately respectively, C10 optical coupling isolation circuit C8, isolate the comparer IC4 in-phase input end and the inverting input that transfer to described comparator circuit C9, the output terminal of described comparer IC4 output high potential signal when both are unequal, current unbalance is described, then can sends the instruction of cutting off subscribers feeder to relay J;
See also shown in Figure 13 C, but it is the electrical schematic diagram of current detection module preferred embodiment three in the electric energy meter of the present invention's modularization assembling; For single-phase current, whether transship in order to detect voltage, prevent the fire failure that causes by it, described current measuring element is mutual inductor L2, it is set on the live wire output line B, and the induced signal that obtains is transferred to the in-phase input end of described comparer IC2 through a rectification circuit C6, the inverting input of described comparer IC2 is set a reference voltage, when load is excessive, the output terminal of described comparer IC2 is exported a high potential signal, illustrate that the electrical equipment that uses surpasses rated load, then can send the instruction of cutting off subscribers feeder to relay and/or isolating switch;
See also shown in Figure 13 D, but it is the electrical schematic diagram of current detection module preferred embodiment four in the electric energy meter of the present invention's modularization assembling; Described current measuring element is a copper-manganese sheet 1R1, it is connected with live wire output line L, the two ends of described copper-manganese sheet 1R1 produce a voltage, the in-phase input end of isolating the comparer IC4 that transfers to comparator circuit C13 by signal amplification circuit C11, optical coupling isolation circuit C12, the inverting input of described comparer IC4 is set a reference voltage, when described voltage is higher than reference voltage, the electrical equipment that the output terminal of described comparer IC4 is exported high potential signal explanation use surpasses rated load, then can send the instruction of cutting off subscribers feeder to relay J;
See also shown in Figure 14, but prevent the functional block diagram of casing and/or box body unnormal unlocking module in its electric energy meter for the present invention's modularization assembling; Described casing and/or the box body unnormal unlocking module of preventing is when unnormal unlockings take place in described box body 15 and/or casing 3, produce the action of reporting to the police or cutting off subscribers feeder, its fundamental purpose is to prevent the illegal stealing of bad personnel, perhaps avoid the layman to open the adverse consequences that box body causes electric shock, it comprises: an open detection circuit 01 and an executive circuit (fault executive circuit 94), wherein
Whether described open detection circuit 01 is opened in order to detect box body 15 and/or casing 3, sends detection signal and give described processor 8 and generate a control signal when opening;
Described executive circuit (fault executive circuit 94) receives described control signal, and produces the action of reporting to the police or cutting off the subscribers feeder connection of place circuit.
See also shown in Figure 15 A, but it prevents the structural representation of open detection circuit embodiments one in casing and/or the box body unnormal unlocking module for current detection module in the electric energy meter of the present invention's modularization assembling, described open detection circuit comprises: a pressure transducer 012, wherein, described pressure transducer 012 is connected with an A/D converter 013, and link to each other with the status signal port of described processor 8, pressure transducer 012 is arranged at described box body 152 and/or casing cap 3 places, because the extruding of screw 011 produces described detection signal, and be sent to described status signal port, by comparing with a threshold value of in described processor 8, presetting, if less than this threshold value then export control signal and give described executive circuit, described executive circuit (fault executive circuit 94) can be the fault executive circuit 94 of self check measurement unit, realizes preventing the box body unnormal unlocking by sound and light alarm and cut-out subscribers feeder.
See also shown in Figure 15 B, but prevent the structural representation of open detection circuit embodiments two in casing and/or the box body unnormal unlocking module in its electric energy meter for the assembling of the present invention's modularization, described open detection circuit comprises: one stroke switch 014 or normally closed switch, here be that example describes with travel switch 014, described travel switch 014 is arranged at encapsulation place of described box body 152 and/or casing cap 3, when encapsulation place does not have the space, described travel switch 014 no signal output, otherwise, when screw 011 by spin-up, described travel switch 014 is closed because spring 015 acts on, thereby the output control signal is given described executive circuit (fault executive circuit 94), described executive circuit (fault executive circuit 94) can be the fault executive circuit 94 of self check measurement unit, realizes preventing the box body unnormal unlocking by sound and light alarm and cut-out subscribers feeder.
True the present invention has the function that writes down at the unusual condition that line of electric force took place, it is that corresponding historical information is stored in the memory circuit 422 of described counting unit 42, described memory circuit 422 is connected mutually with described data processing circuit 421 and described open detection circuit 01 respectively, when having a power failure, with the energy value of described data processing circuit 421 accumulations, store in the described memory circuit 422; When restoring electricity, read the energy value of storing in the described memory circuit 422 by described data processing circuit 421; And can when unnormal unlocking takes place box body 15, write down this event information.
But need to prove for the ease of with more function in conjunction with but the function of the electric energy meter of the present invention's modularization assembling get a promotion, also should comprise an expansion interface, it is connected with at least one expansion module, it is used for function expansion of the present invention, described expansion module is connected with described control module by a standard interface, realizes plug and play; Below providing the described expansion module of a kind of embodiment comprises: but management control center that unusual condition that the electric energy meter that a communication unit is assembled described modularization in order to realization occurs or energy value send to far-end or user's information receiving terminal are realized abnormal monitoring and remote meter reading; Described communication unit transmits one of them mode with carrier-wave transmission, Ethernet transmission, PSNT (public telephone switch) Network Transmission, GPRS transmission, GSM transmission or CDMA and transmits;
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.

Claims (26)

  1. But 1, a kind of electric energy meter of modularization assembling, it comprises: a casing, it is characterized in that, also comprise:
    One line of electric force access module, it comprises that phase line inserts assembly and zero line inserts assembly, it has incoming end and output terminal respectively, the incoming end of described phase line access assembly is connected with the phase line in the line of electric force, and the incoming end of described zero line access assembly is connected with the zero line in the described line of electric force;
    At least one modular electric energy metering machine, described each modular electric energy metering machine has phase line incoming end and zero line incoming end and line output terminal and zero line output terminal mutually, picks out end and zero line picks out the energy value that end is exported in order to the phase line of measuring each custom power line;
    The output terminal that described phase line inserts assembly is connected with described modular electric energy metering machine phase line incoming end, and described modular electric energy metering machine phase line output terminal links to each other with the phase line output line; The output terminal that described zero line inserts assembly is connected with the zero line incoming line, and described modular electric energy metering machine zero line output terminal links to each other with the zero line output line;
    Described line of electric force access module and described modular electric energy metering machine are arranged in the described casing with modular characteristics, arrange.
  2. 2, but the electric energy meter of modularization assembling according to claim 1 is characterized in that described casing has a line of electric force input interface, and the output interface of zero line output line and phase line output line, and described casing has a cap.
  3. But 3, the electric energy meter of modularization assembling according to claim 1 is characterized in that described modular electric energy metering machine also comprises:
    One power supply unit is in order to provide power for operation;
    One electric energy metrical unit calculates and to enter via described phase line incoming end and zero line incoming end, and the energy value that is consumed by the user;
    One pulse signal output unit, the energy value that described electric energy metrical unit is calculated is converted into the pulse signal output that is directly proportional with described energy value;
  4. But 4, the electric energy meter of modularization assembling according to claim 3, it is characterized in that, also comprise: a box body, described power supply unit, electric energy metrical unit and pulse signal output unit are arranged in the described box body, and encapsulate by a cap, described phase line incoming end and line output terminal mutually are arranged at the two ends of described box body.
  5. 5, but the electric energy meter of modularization assembling according to claim 3 is characterized in that, described electric energy metrical unit, and it comprises:
    One current signal Acquisition Circuit is in order to the current signal on the real-time collection line of electric force;
    One voltage signal acquisition circuit is in order to the voltage signal on the real-time collection line of electric force;
    One computing and treatment circuit obtain the instantaneous power value in order to described current signal and described voltage signal are multiplied each other, and obtain the energy value of a determining time by integrator.
  6. 6, but the electric energy meter of modularization assembling according to claim 1 is characterized in that, described phase line inserts assembly and described zero line access assembly all is positioned at described modular electric energy metering machine homonymy;
    Perhaps described phase line inserts assembly and described zero line inserts the heteropleural that assembly is positioned at described modular electric energy metering machine.
  7. 7, but the electric energy meter of modularization assembling according to claim 6 is characterized in that, described phase line inserts assembly and zero line inserts assembly dislocation or stacked setting.
  8. 8, but the electric energy meter of modularization assembling according to claim 7 is characterized in that, described phase line inserts assembly and comprises:
    At least one phase line is divided the family structural member, it makes for conductive material, and has an incoming end, and described incoming end is connected with phase line in the described line of electric force, also has at least one phase line output terminal, itself and corresponding being connected of phase line incoming end of described modular electric energy metering machine.
    Described zero line inserts assembly and comprises: at least one zero line branch family structural member, it makes for conductive material, and has an incoming end, described incoming end is connected with the zero line of described line of electric force, also has at least one zero line output terminal, itself and corresponding being connected of zero line incoming end of described modular electric energy metering machine, wherein said phase line branch family structural member divides the output terminal number of family structural member identical with zero line.
    Also comprise: protective cover and low protection cover on two groups, it makes for the insulation heat-barrier material, and the exposed part that described phase line is inserted assembly and zero line access assembly coats respectively, and makes described phase line branch family structural member and zero line branch family structural member mutually insulated.
  9. But 9, the electric energy meter of modularization assembling according to claim 3 is characterized in that described power supply unit comprises:
    One power-switching circuit, it carries out transformation with power voltage line handles, in order to the power for operation of modular electric energy metering machine to be provided.
    One standby power supply;
    One charging circuit, it is connected with the output terminal of described power-switching circuit, and to described standby power supply charging;
    One detecting commutation circuit, whether it has voltage output in order to detect described power-switching circuit, and when described power-switching circuit no-voltage was exported, starting described standby power supply provided power for operation.
  10. 10, but the electric energy meter of modularization assembling according to claim 1 is characterized in that, also comprises:
    The one end power-off modular of registering one's residence, enter one group of described phase line output line that a certain appointment electricity consumer uses the zone in order to cut-out, or one group of described phase line output line and zero line output line, the described end power-off modular of registering one's residence is at least one isolating switch or relay, and its quantity is consistent with the quantity of described modular electric energy metering machine;
    One line ball block assembly is arranged on described phase line output line and the zero line output line, is convenient to installation and maintenance, and makes the cabling standard.
  11. 11, but the electric energy meter of modularization assembling according to claim 1 is characterized in that, also comprises:
    One modular electric energy metering machine front end power-off modular, enter one group of described phase line incoming line of a certain appointment electricity consumer modular electric energy metering machine in order to cut-out, described modular electric energy metering machine front end power-off modular is at least one isolating switch or relay, and its quantity is consistent with the quantity of described modular electric energy metering machine.
  12. But 12, the electric energy meter of modularization assembling according to claim 1, it is characterized in that, also comprise: a control module, in order to receive the status signal of each modular assembly, and send control signal to each modular assembly, described control module is single-chip microcomputer, embedded system or FPGA (Field Programmable Gate Array) control.
  13. 13, but the electric energy meter of modularization assembling according to claim 12 is characterized in that, also comprises: a modular electric energy metering machine fault detection unit, and it comprises:
    Whether one current monitoring circuit has electric current to flow through in order to monitor described phase line input end;
    Whether one pulse observation circuit has pulse signal output in order to monitor described pulse signal output unit;
    One monitoring decision circuitry, when described phase line input end has electric current to flow through, and the output of described pulse signal output unit pulse-free signal judges that then described modular electric energy metering machine breaks down.
  14. But 14, the electric energy meter of modularization assembling according to claim 13 is characterized in that described current monitoring circuit comprises:
    One telefault, it is set on the described phase line;
    One comparer, one input end are provided with a reference voltage, and its other end is connected with the output terminal of described telefault;
    Described pulse observation circuit comprises:
    One comparer, one input end are provided with a reference voltage, and its other end is connected with the output terminal of described pulse signal output unit;
    Described monitoring decision circuitry is described control module, the one input interface links to each other with the output terminal of described current monitoring circuit, one input interface links to each other with described pulse observation circuit output terminal, judges that by described control module described modular electric energy metering machine breaks down.
  15. But 15, the electric energy meter of modularization assembling according to claim 14, it is characterized in that, also comprise: it comprises a current detecting unit: a current measuring element and comparer, described current measuring element is arranged on described zero line and inserts the assembly lower end, and the output terminal of described comparer is connected with described control module status signal input end.
  16. But 16, the electric energy meter of modularization assembling according to claim 15, it is characterized in that, for single-phase current, described current measuring element is a mutual inductor, it is set on live wire output line and the described zero line output line, and the induced signal that obtains is transferred to the in-phase input end of described comparer, and the inverting input of described comparer is set a reference voltage, when described electric current out of trim, the output terminal of described comparer is exported a high potential signal;
    Perhaps described current measuring element is one group of copper-manganese sheet, it comprises the first copper-manganese sheet and the second copper-manganese sheet, it is connected with the zero line output line with the live wire output line respectively, the two ends of the described first copper-manganese sheet produce first voltage, the described second copper-manganese sheet produces second voltage, by amplifying circuit separately signal is amplified, and transfers to the in-phase input end and the inverting input of described comparer through buffer circuit, the output terminal of described comparer is exported a high potential signal when both are unequal.
  17. But 17, the electric energy meter of modularization assembling according to claim 15, it is characterized in that, for single-phase current, described current measuring element is a mutual inductor, it is set on the live wire output line, and the induced signal that obtains is transferred to the in-phase input end of described comparer, and the inverting input of described comparer is set a reference voltage, when load was excessive, the output terminal of described comparer was exported a high potential signal;
    Perhaps described current measuring element is a copper-manganese sheet, it is connected with the live wire output line, the two ends of described copper-manganese sheet produce a voltage, signal is amplified, also transfers to through buffer circuit the in-phase input end of described comparer by amplifying circuit, the inverting input of described comparer is set a reference voltage, when described voltage was higher than reference voltage, the output terminal of described comparer was exported a high potential signal.
  18. 18, but the electric energy meter of modularization assembling according to claim 3 is characterized in that, also comprises: a counting unit, and it comprises:
    One data counts circuit, it receives the pulse signal of described pulse signal output unit output, and the counting that carries out energy value;
    One internal communication circuit, it links together described data counts circuit and described control module;
    One memory circuit, it is connected with described data counts circuit, when having a power failure, with the energy value of described data counts circuit accumulative total, stores in the described memory circuit; When restoring electricity, read the energy value of storing in the described memory circuit by described data counts circuit.
  19. But 19, according to the electric energy meter of claim 1 or 3 described modularization assemblings, it is characterized in that also comprise: prevent the unit of casing and/or box body unnormal unlocking, it comprises: one opens an observation circuit or an executive circuit, wherein,
    Described unlatching observation circuit, whether it opens in order to monitoring casing cap and/or box body cap, sends monitor signal and give described control module when opening, and generates a control signal by described control module;
    Described executive circuit, it receives described control signal, and produces the line of electric force connection of reporting to the police and/or cutting off the place circuit.
  20. 20, but the electric energy meter of modularization assembling according to claim 19 is characterized in that described unlatching observation circuit is a pressure transducer or travel switch, wherein,
    Described pressure transducer, it is arranged at the cap place of described casing cap and/or box body, when the pressure at cap place during less than a certain threshold value, produces described monitor signal;
    Described travel switch, it is arranged at the cap place of described casing cap and/or box body, when encapsulation place does not have the space, described travel switch no signal output, on the contrary then travel switch produces described monitor signal.
  21. But 21, the electric energy meter of modularization assembling according to claim 12 is characterized in that also comprise the display process module, it comprises: single household display unit and/or whole display unit, wherein,
    Described single household display unit comprises: a display screen, and it is embedded on the box body of each described modular electric energy metering machine;
    One drive circuit, it drives described display screen and shows power consumption according to the data-signal of the described counting unit output that receives;
    Described whole display unit comprises: a display screen, and it is embedded on described casing;
    One drive circuit, it drives described display screen and shows power consumption according to the data-signal that receives described counting unit output;
    One card reader, it is connected with described control module, by reading the information of radio-frequency identification card, sends data-signal to described control module, produce a control signal by described control module, make the data-signal of described counting unit output give described driving circuit.
  22. 22, but the electric energy meter of modularization assembling according to claim 21 is characterized in that, described radio-frequency identification card blocks and/or inquirying card for purchasing electricity, wherein,
    The described electricity card of purchasing is to described card reader emission radio-frequency (RF) identification command information, the described electric quantity data of purchasing is transferred to described control module, send data-signal by described control module to described counting unit, after the memory circuitry stores user of described counting unit purchases electric quantity data, described data counts circuit power consumption data and user purchase electric quantity data and compare, obtain difference, demonstrate by described whole display unit;
    When described difference is lower than a certain threshold value, described relay and/or isolating switch disconnect, stop power supply to the user,, and send control command by described control module and make described relay and/or reset of breaker to described card reader emission radio-frequency (RF) identification command information by the described electricity card purchased;
    Described inquirying card is to described card reader emission radio-frequency (RF) identification command information, and send control signal to described counting unit by described control module, the historical power consumption data of user of the memory circuitry stores of described counting unit are demonstrated by described whole display unit.
  23. But 23,, it is characterized in that, also comprise an acoustic-optic alarm, under abnomal condition, send sound and light alarm according to the electric energy meter of claim 9,14,16 or 17 any one of them described modularization assembling.
  24. But 24, the electric energy meter of modularization assembling according to claim 12 is characterized in that also comprise a wireless energy control units, it comprises:
    One wireless signal dispensing device is in order to send wireless control signal;
    One wireless signal receiving circuit is in order to receive outside wireless control signal;
    One decoding circuit, it is connected with described wireless signal receiving circuit, obtains corresponding digital controlled signal;
    One decoding scheme is resolved described digital controlled signal and is converted to command information, controls resetting or disconnecting of described relay and/or isolating switch.
  25. But 25, the electric energy meter of modularization assembling according to claim 12, it is characterized in that, also comprise an expansion module, it is used for function expansion of the present invention, described expansion module is connected with described control module by a standard interface, realizes plug and play.
  26. But 26, the electric energy meter of modularization assembling according to claim 25, it is characterized in that, described expansion module comprises: but management control center that unusual condition that the electric energy meter that a communication unit is assembled described modularization in order to realization occurs or energy value send to far-end and/or user's information receiving terminal are realized abnormal monitoring, pre-payment and remote meter reading;
    Described communication unit transmits one of them mode with carrier-wave transmission, Ethernet transmission, PSNT Network Transmission, GPRS transmission, GSM transmission or CDMA and transmits.
CNA2007101696744A 2007-10-17 2007-11-13 Modular assembled electrical energy meter Pending CN101435834A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CNA2007101696744A CN101435834A (en) 2007-11-13 2007-11-13 Modular assembled electrical energy meter
EP08839406A EP2209011A1 (en) 2007-10-17 2008-10-17 A modular electronic energy meter
PCT/CN2008/001751 WO2009049499A1 (en) 2007-10-17 2008-10-17 A modular electronic energy meter
US12/762,541 US7859246B2 (en) 2007-10-17 2010-04-19 Modular energy meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101696744A CN101435834A (en) 2007-11-13 2007-11-13 Modular assembled electrical energy meter

Publications (1)

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CN101435834A true CN101435834A (en) 2009-05-20

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CNA2007101696744A Pending CN101435834A (en) 2007-10-17 2007-11-13 Modular assembled electrical energy meter

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103293372A (en) * 2012-03-01 2013-09-11 欧姆龙株式会社 Power sensors, additional units of power sensors, and power measurement system
CN105137383A (en) * 2015-07-31 2015-12-09 国家电网公司 Method for reducing replacement rate of electric energy meter
CN107219394A (en) * 2017-06-06 2017-09-29 深圳慧之家创新科技有限公司 A kind of electric energy metered system
CN107238754A (en) * 2016-03-29 2017-10-10 华为技术有限公司 A kind of method and apparatus for detecting electricity
CN109991454A (en) * 2019-03-25 2019-07-09 深圳龙电电气股份有限公司 Electric energy meter and cover mould structure with functional module
CN116027103A (en) * 2023-03-29 2023-04-28 荣耀终端有限公司 Power consumption detection circuit, power consumption detection chip and terminal equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103293372A (en) * 2012-03-01 2013-09-11 欧姆龙株式会社 Power sensors, additional units of power sensors, and power measurement system
CN103293372B (en) * 2012-03-01 2016-01-20 欧姆龙株式会社 Electrical quantity sensor, electrical quantity sensor set up unit and voltameter examining system
CN105137383A (en) * 2015-07-31 2015-12-09 国家电网公司 Method for reducing replacement rate of electric energy meter
CN107238754A (en) * 2016-03-29 2017-10-10 华为技术有限公司 A kind of method and apparatus for detecting electricity
CN107219394A (en) * 2017-06-06 2017-09-29 深圳慧之家创新科技有限公司 A kind of electric energy metered system
CN107219394B (en) * 2017-06-06 2023-09-05 广东浩宁达实业有限公司 Electric energy metering system
CN109991454A (en) * 2019-03-25 2019-07-09 深圳龙电电气股份有限公司 Electric energy meter and cover mould structure with functional module
CN116027103A (en) * 2023-03-29 2023-04-28 荣耀终端有限公司 Power consumption detection circuit, power consumption detection chip and terminal equipment
CN116027103B (en) * 2023-03-29 2023-09-15 荣耀终端有限公司 Power consumption detection circuit, power consumption detection chip and terminal equipment

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Application publication date: 20090520