CN101413965B - Modular assembled electrical energy meter - Google Patents

Modular assembled electrical energy meter Download PDF

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Publication number
CN101413965B
CN101413965B CN2007100535798A CN200710053579A CN101413965B CN 101413965 B CN101413965 B CN 101413965B CN 2007100535798 A CN2007100535798 A CN 2007100535798A CN 200710053579 A CN200710053579 A CN 200710053579A CN 101413965 B CN101413965 B CN 101413965B
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China
Prior art keywords
electric energy
line
circuit
signal
assembling
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Expired - Fee Related
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CN2007100535798A
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CN101413965A (en
Inventor
万家盛
汪志强
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Hubei Shengjia Wiring Co Ltd
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Hubei Shengjia Wiring Co Ltd
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Priority to CN2007100535798A priority Critical patent/CN101413965B/en
Priority to EP08839406A priority patent/EP2209011A1/en
Priority to PCT/CN2008/001751 priority patent/WO2009049499A1/en
Publication of CN101413965A publication Critical patent/CN101413965A/en
Priority to US12/762,541 priority patent/US7859246B2/en
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Publication of CN101413965B publication Critical patent/CN101413965B/en
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Abstract

The invention relates to a power meter which can be assembled in a modular way, the power meter comprises: a power line access module which comprises a live line access component and a zero line access component, the two access components are respectively provided with an access end and an output end, the access end of the live line access component is connected with a live line in a power line, the access end of the zero line access component is connected with a zero line in the power line; at least one modular power metering device, each modular power metering device comprises a live line access end, a zero line access end and a live line output end for metering power values which are output by the live line access end and the zero line access end of the power line of each user; the output end of the live line access component is connected with the live line access end, the live line output end is connected with a live line output line; the output end of the zero line access component is connected with a zero line output line, the number of the zero line output line and the number of the live line output line are respectively corresponding to the number of the modular power metering device.

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 standard metering module expand the electric energy meter of the modularization assembling that is connected to form through 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 is 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 around existing ammeter, increase auxiliary device, and cause the electric-power metering set of equipments bulky, production cost increases;
Secondly; In case power department changes to electricity consumption on-the-spot management expectancy or standard; 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, and simultaneously numerous and jumbled construction package is given to install and correctly 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 realizing above-mentioned purpose, the technical scheme that the present invention adopts is, but the electric energy meter that provides a kind of modularization to assemble, and it comprises:
One line of electric force AM access module; It comprises that phase line inserts assembly and zero line inserts assembly; It has incoming end and output terminal respectively, and described phase line inserts the incoming end of assembly and is connected with phase line in the line of electric force, and the incoming end of described zero line connected components is connected with zero line in the described line of electric force;
At least one modular electric energy metering machine, described each modular electric energy metering machine have phase line incoming end and zero line incoming end and line output terminal mutually, pick out end in order to the phase line of measuring each custom power line and pick out the energy value that end is exported with zero line;
The output terminal that described phase line inserts assembly is connected with described phase line incoming end, and described 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 output line, and the bar number of described zero line output line is corresponding with described modular electric energy metering machine number respectively with the bar number of phase line output line;
Preferable; Also comprise a casing, described line of electric force AM access module and at least one modular electric energy metering machine are arranged in the described casing, and described casing has a line of electric force input interface; And zero line output line and phase line output line output interface, described casing has a cap;
Preferable, described modular electric energy metering machine also comprises:
One power module is in order to provide power for operation;
One electric energy metrical unit calculates via described phase line incoming end and zero line incoming end and gets into and by the energy value of user's consumption;
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;
Preferable, also comprise a box body, described electric energy metrical unit and pulse signal output unit are arranged in the described box body, and encapsulate through 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 through integrator;
Preferable, described pulse signal output unit is a voltage/frequency conversion frequency dividing circuit;
Preferable, the output terminal of described pulse signal output unit and described zero line input end are the differing needles that is integrated in a serial plug;
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;
Preferable, also comprise: a protective cover and a low protection cover on one, it makes for the insulation heat-barrier material, and the exposed part of described phase line branch family structural member is coated;
Preferable, described zero line inserts assembly and comprises:
One zero line member bodies, it makes for conductive material, and has an incoming end, and described incoming end is connected with the zero line of described line of electric force;
At least one copper billet electric-conductor; It is connected on the described zero line member bodies; Described two copper billet electric-conductors have output terminal; The quantity of described copper billet electric-conductor and the quantity of described modular electric energy metering machine are consistent, and arrange with the line output terminal mutually of the described modular electric energy metering machine position that interlaces;
Preferable, also comprise:: a protective cover and a low protection cover on one, it makes for the insulation heat-barrier material, and the exposed part that described zero line is inserted assembly coats;
Preferable, described power module comprises:
One power-switching circuit, it carries out transformation with power voltage line handles, in order to power for operation to be provided;
Preferable, also comprise:
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 power supply;
One detecting commutation circuit, whether it has voltage output in order to detect described power-switching circuit, and when described power-switching circuit unregulated power 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; Get into one group of described phase line output line that a certain appointment electricity consumer uses the zone in order to cut off; 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, and the quantity of its quantity and described modular electric energy metering machine is consistent;
Preferable, also comprise: a line ball block assembly, be arranged on described phase line output line and the zero line output line, be convenient to the installation and the replacing of isolating switch, and make the cabling standard;
Preferable, also comprise:
One modular electric energy metering machine front end power-off modular; In order to cut off the one group of described phase line incoming line that gets into a certain appointment electricity consumer modular electric energy metering machine; Described modular electric energy metering machine front end power-off modular is at least one isolating switch or relay, and the quantity of its quantity and described modular electric energy metering machine is consistent;
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 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 said 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;
Preferable, 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;
Preferable, described monitoring decision circuitry comprises:
Described monitoring decision circuitry is described control module; The one of which 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 through described control module said 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, and it is set on live wire output line and the described zero line output line; And the induced signal that obtains transferred to the in-phase input end of said comparer; The inverting input of said 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, and the two ends of the described first copper-manganese sheet produce first voltage, and the described second copper-manganese sheet produces second voltage; Isolate in-phase input end and the inverting input that transfers to said comparer through the buffer circuit of respective signal, 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, and it is set on the live wire output line; And the induced signal that obtains transferred to the in-phase input end of said comparer; The inverting input of said 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 first voltage, isolate the in-phase input end that transfers to said comparer through the buffer circuit of respective signal, and the inverting input of said comparer is set a reference voltage; When first voltage is higher than reference voltage, the output terminal of described comparer output 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.
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, when opening, sends monitor signal and gives described control module, 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 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 said 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 said 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 comprise: a 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, and described memory circuit writes down an event information when unnormal unlocking takes place;
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 said display screen and shows power consumption according to the data-signal of the said 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 said display screen and shows power consumption according to the data-signal that receives said counting unit output;
One card reader; It is connected with described control module, through reading the information of radio-frequency identification card, sends status 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 RF identification command information; The described electric quantity data of purchasing is transferred to described control module; Send status signal by described control module to described counting unit, after the memory circuitry stores user of described counting unit purchased electric quantity data, described data counts circuit accumulative total power consumption data and user purchased electric quantity data and compare; Obtain difference, demonstrate through described whole display unit;
When said difference is lower than a certain threshold value; Described relay and/or disconnection; Stop power supply to the user, know command information to described card reader emission radio frequency, and send control command by described control module and make described relay and/or reset through the described electricity card purchased;
Described inquirying card is to described card reader emission 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 through 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 convert command information into, controls resetting or breaking off of described relay;
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 through 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 said 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;
Preferable, described communication unit transmits with carrier-wave transmission, Ethernet transmission, TDSN Network Transmission, GPRS transmission, GSM transmission or one of them mode of CDMA transmission;
The beneficial effect that has with prior art comparison the present invention is,
But the electric energy meter of one, the present invention modularization assembling is the basis with the modular electric energy metering machine, the various functions that can electricity consumption situ metrology administrative institute of integrated power department need through modular characteristics, 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 through the assembling of the present invention's modularization makes power department in application process, greatly reduce metering overall investment cost and installation work-hour; 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 through changing corresponding modular unit, for user and power department have been practiced thrift 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 main three-dimensional structure diagram 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 secondary three-dimensional structure diagram 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. 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, do more detailed explanation with other technical characterictic and advantage to 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 AM access module 2; It comprises that phase line inserts assembly 21 and inserts assembly 22 with zero line; It has incoming end and output terminal respectively; Described phase line inserts the incoming end 2111 of assembly and is connected with phase line in the line of electric force, and the incoming end 2211 of described zero line connected components is connected with zero line in the described line of electric force;
At least one modular electric energy metering machine 1; Described each modular electric energy metering machine 1 has phase line incoming end 112 and zero line incoming end 111 and line output terminal 113 mutually, 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 is merely 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 the bar number of described zero line output line is corresponding with described modular electric energy metering machine 1 number respectively with the bar number of phase 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 instance 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, a power supply unit 14, one electric energy metrical unit 12 and a pulse signal output unit 13; Wherein, Described line of electric force input-output unit comprises: phase line incoming end 112 and zero line incoming end 111 and line output terminal 113 mutually, and 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; Described power supply unit 14 provides power for operation in order to obtain described phase line incoming end 112 and the voltage that zero line incoming end 111 inserts through other electricity consumption device that converts said modular electric energy metering machine 1 accordingly into; 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; The function of its management of power use function expansion is based on also that this standard module extends out with regard to unique user, and we must introduce two unit in its structure accordingly for this reason, better realizes product of the present invention with expectation those skilled in the art on its architecture basics understanding.
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, and 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; Through described multiplier 1231 described current signal and described voltage signal are multiplied each other and to obtain the instantaneous power value; Obtain interior energy value of determining time through described integrator 1232 then, and convert the energy value that obtains into pulse signal output through 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, and it comprises: a power converting circuit 141, and 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 supply 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 power for operation is provided for the electricity consumption device of described modular electric energy metering machine 1; Because the accumulate finite capacity of described standby power supply 143 is therefore once the situation of generation power converting circuit 141 faults just must be informed the user; Perhaps cut off circuit 942 (isolating switch) and cut off power circuit to prevent management of power use department being caused waste of power resources and loss owing to said power supply unit 141 breaks down through a line of electric force; Can certainly adopt an acoustic-optic alarm 941 to be connected, when described power-switching circuit 141 no-voltages are exported, trigger the sound and light of alarm of described acoustic-optic alarm 941 with described detecting commutation circuit 144.
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 encapsulates it; At first, see also shown in Fig. 5 A, but it is the main three-dimensional structure diagram of box body structure one preferred embodiment of the electric energy meter module electric energy metering device of the present invention's modularization assembling; It comprises: a base plate 150, in order to carry the device of the inner installing of 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 151 in the upper end of said cap 152, be that its relative end is provided with phase line output terminal 154, is provided with locking hole 155 at described cap 152 upper surfaces; In order to be screwed onto with described base plate 150 through screw, these all are and nucleus module of the present invention on described cap 152, also to have display screen form 158, pulse matching hole 156 and a pulse indicator lamp hole 157---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 secondary three-dimensional structure diagram of box body structure one preferred embodiment of the electric energy meter module electric energy metering device of the present invention's modularization assembling that it is to carry out projection from the proceeds posterolateral of said box body 15; Can significantly see; On described base plate 150, be provided with some fastener holes 159, it it is emphasized that for outstanding modular characteristics in order to realize the location that carry out said box body 15 and installation site and to fixedly install especially; A characteristic of the present invention just is; It comprises: a phase line upstream end 151 and line output terminal 154 and part input end 161 mutually, and the output terminal of described zero line input end 161 and described pulse signal output unit 13 is integrated on the serial plug 16, and corresponding with differing needles; Be implemented in through 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.
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 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 said 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; At least one copper billet electric-conductor 2212; It is connected on the described zero line member bodies 221; Described copper billet electric-conductor 2212 has output terminal; The quantity of the quantity of described copper billet electric-conductor 2212 and described modular electric energy metering machine 1 is consistent, and with the arrangement that misplaces mutually of the line output terminal mutually 113 of described modular electric energy metering machine 1; Also comprise: a protective cover 222 and a low protection cover 223 on one, it makes for the insulation heat-barrier material, and the exposed part that described zero line is inserted assembly 22 coats, in order to prevent electric leakage and electric leakage.
See also shown in Fig. 7 A, Fig. 7 B; But it is structure diagram one, the structure diagram two of electric energy meter one preferred embodiment of the present invention's modularization assembling; Can find clearly that described line of electric force AM 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 zero line output line and phase line output line output interface 32, described casing 3 has a cap (not shown); In casing 3, except above-mentioned parts, also comprise:
One modular electric energy metering machine front end power-off modular 71; It is arranged at described phase line and inserts between assembly 21 and the described modular electric energy metering machine 1; In order to cut off the one group of described phase line incoming line that gets into a certain appointment electricity consumer modular electric energy metering machine 1; Described modular electric energy metering machine front end power-off modular is at least one isolating switch or relay, and the quantity of its quantity and described modular electric energy metering machine 1 is consistent, is provided with nine group relaies or isolating switch here;
One registers one's residence holds power-off modular 72; It is arranged at the bottom of this casing 3; In order to cut off getting into one group of described phase line output line that a certain appointment electricity consumer uses the zone, or one group of described phase line output line and zero line output line, describedly register one's residence that to hold power-off modular be at least one isolating switch or relay; The quantity of its quantity and described modular electric energy metering machine is consistent, is provided with nine groups of isolating switchs or relay here;
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 said 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 said 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 present 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, and described control module 8 be single-chip microcomputer, embedded system or FPGA control, is to require, require to determine 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 according to the data processing total amount but select which kind of device.
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, needs counting unit 42 for this reason, and the consumption of electric energy is added 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, and described counting unit 42 comprises: a data processing circuit 421, and 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 said 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 said 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.
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, said whole display module comprises: a display screen 411, it is embedded on described casing 3; One drive circuit 412, it drives said display screen 411 and shows power consumption according to the data-signal that receives said counting unit 42 outputs; One card reader 431; It is connected with described control module 8; Through reading the information of radio-frequency identification card 432; Send data-signal to described control module 8, produce a control signal, make the data-signal of described counting unit 42 outputs give described driving circuit 412 by described control module 8; 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 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 purchased electric quantity data, the power consumption data of described data counts circuit 421 and user purchased electric quantity data and compare; Obtain difference, demonstrate through described whole display unit;
When said difference is lower than a certain threshold value; The relay of described modular electric energy metering machine front end power-off modular with or isolating switch break off; Stop power supply to the user; Know command informations through 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 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 through 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 convert command information into, controls resetting or breaking off of described relay and/or isolating switch.
The independent displaying module that also can have oneself certainly for each electricity consumer; So just need not 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, will be shown by the electric energy aggregate-value of electricity consumer consumption through 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 said display screen 413 and shows power consumption according to the data-signal of the said counting unit that receives 42 outputs; 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, seeing 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 when electricity consumption, monitoring said modular electric energy metering machine 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 said modular electric energy metering machine 1 breaks down;
Certainly iff carries 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, have fault, indicate the reason that produces fault like the pilot lamp or the different audio that adopt different colours in order to remind electricity consumer modular electric energy metering machine 1; 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, only is that its functional character is sorted out here, no longer its structure is given unnecessary details; Simultaneously above-mentioned each item detects and can and accept or reject according to the needs combination of reality, 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 of which 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, has electric current to flow through, and induces voltage signal and 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 through this voltage signal.
Described pulse-detecting circuit C3 comprises: a comparer 5IC2, and the one of which 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 of which input interface links to each other with the output terminal of described current detection circuit C4, and an 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, and an inner predetermined time period of described control module is when described current detection circuit input high potential signal gets into 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,, prevent personnel are damaged and electric energy runs off in order to detect whether balance of electric current; 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, and the induced signal that obtains is transferred to the in-phase input end of said comparer IC1 through a rectification circuit C5, and the inverting input of said 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, and current unbalance is described, then can and/or send the instruction of cutting off line of electric force 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,, prevent that injury and electric energy that personnel are caused run off in order to detect whether balance of electric current; 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, and it is connected with zero line output line N with live wire output line L respectively, and the two ends of the described first copper-manganese sheet R1 produce first voltage; The described second copper-manganese sheet R11 produces second voltage; Signal amplification circuit C7, C10 optical coupling isolation circuit C8 that it passes through respectively separately isolate the comparer IC4 in-phase input end and the inverting input that transfer to said comparator circuit C9, the output terminal of described comparer IC4 output high potential signal when both are unequal; Current unbalance is described, then can be sent the instruction of cutting off line of electric force 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 said comparer IC2 through a rectification circuit C6, and the inverting input of said comparer IC2 is set a reference voltage; When load is excessive; The output terminal of described comparer IC2 is exported a high potential signal, explains that the electrical equipment that uses surpasses rated load, then can send the instruction of cutting off line of electric force 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; Through the in-phase input end that signal amplification circuit C11, optical coupling isolation circuit C12 isolate the comparer IC4 that transfers to comparator circuit C13, the inverting input of said comparer IC4 is set a reference voltage, when said 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 line of electric force 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 power circuit; Its fundamental purpose is to prevent the illegal stealing of bad personnel, perhaps avoids the layman to open the adverse consequences that box body causes electric shock, and 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, when opening, sends detection signal and gives described processor 8 and generate a control signal;
Described executive circuit (fault executive circuit 94) receives described control signal, and produces the action of reporting to the police or cutting off the line of electric force 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, and 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 said box body 152 and/or casing cap 3 places, because the extruding of screw 011 produces described detection signal, and is sent to described status signal port; Through comparing with a threshold value preset in described processor 8; 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, through sound and light alarm with cut off power circuit and realize preventing the box body unnormal unlocking.
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 are that example describes with travel switch 014 here, and described travel switch 014 is arranged at encapsulation place of said 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 has been revolved; Said travel switch 014 is closed because spring 015 acts on; Thereby the output control signal is given described executive circuit (fault executive circuit 94), and 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 through sound and light alarm and cut-out power circuit.
True the present invention has the function that writes down to the unusual condition that line of electric force took place; It is that corresponding historical information is stored in the memory circuit 422 of said counting unit 42; Described memory circuit 422 is connected with described data processing circuit 421 and said open detection circuit 01 respectively mutually; When having a power failure,, store in the described memory circuit 422 energy value of described data processing circuit 421 accumulations; 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.
Need to prove for the ease of combining but but the function of the electric energy meter of the present invention's modularization assembling gets a promotion with more function; 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, and described expansion module is connected with described control module through 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 said 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 with carrier-wave transmission, Ethernet transmission, PSNT (public telephone switch) Network Transmission, GPRS transmission, GSM transmission or one of them mode of CDMA transmission;
The above is merely 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 in spirit that claim of the present invention limited and scope, can carry out many changes to it, revise, in addition equivalent, but all will fall in protection scope of the present invention.

Claims (36)

  1. But 1. the electric energy meter of modularization assembling, it comprises: a casing is characterized in that it comprises:
    One line of electric force AM 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 have phase line incoming end and zero line incoming end and line output terminal mutually, pick out end in order to the phase line of measuring each custom power line and pick out the energy value that end is exported with zero 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 output line, and the bar number of described zero line output line is corresponding with described modular electric energy metering machine number respectively with the bar number of phase line output line;
    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 via described phase line incoming end and the entering of zero line incoming end, and by the energy value of user's consumption;
    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;
    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 incoming 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 incoming end has electric current to flow through, and the output of described pulse signal output unit pulse-free signal judges that then said modular electric energy metering machine breaks down.
  2. 2. but the electric energy meter of modularization assembling according to claim 1; It is characterized in that; Described line of electric force AM access module and at least one modular electric energy metering machine are arranged in the described casing; Described casing has a line of electric force input interface, and zero line output line interface and phase line output line interface, and described casing has a cap.
  3. 3. but the electric energy meter of modularization assembling according to claim 1; 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 through a cap, and described phase line incoming end and line output terminal mutually are arranged at the two ends of described box body.
  4. 4. but the electric energy meter of modularization assembling according to claim 1 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 through integrator.
  5. 5. but the electric energy meter of modularization assembling according to claim 1 is characterized in that, described pulse signal output unit is a voltage/frequency conversion frequency dividing circuit.
  6. 6. according to claim 1 or 5 described modular electric energy metering machines, it is characterized in that the output terminal of described pulse signal output unit and described zero line incoming end are for being integrated in a serial plug.
  7. 7. but the electric energy meter of modularization assembling according to claim 1 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.
  8. 8. but the electric energy meter of modularization according to claim 7 assembling is characterized in that, also comprises: a protective cover and a low protection cover on one, it makes for the insulation heat-barrier material, and the exposed part of described phase line branch family structural member is coated.
  9. 9. but the electric energy meter of modularization assembling according to claim 1 and 2 is characterized in that, described zero line inserts assembly and comprises:
    One zero line member bodies, it makes for conductive material, and has an incoming end, and described incoming end is connected with the zero line of described line of electric force;
    At least one copper billet electric-conductor; It is connected on the described zero line member bodies; Described electric-conductor has output terminal; The quantity of described electric-conductor output terminal and the quantity of described modular electric energy metering machine are consistent, and arrange with the line output terminal mutually of the described modular electric energy metering machine position that interlaces.
  10. 10. but the electric energy meter of modularization assembling according to claim 9 is characterized in that, also comprises: a protective cover and a low protection cover on one, and it makes for the insulation heat-barrier material, and the exposed part that described zero line is inserted assembly coats.
  11. 11. but according to the electric energy meter of claim 1 or the assembling of 5 described modularizations, it 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.
  12. But 12. the electric energy meter of modularization according to claim 11 assembling it is characterized in that, also comprise:
    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.
  13. But 13. the electric energy meter of modularization according to claim 1 and 2 assembling it is characterized in that, also comprise:
    The one end power-off modular of registering one's residence gets into one group of described phase line output line that a certain appointment electricity consumer uses the zone in order to cut off, or one group of described phase line output line and zero line output line.
  14. But 14. the electric energy meter of modularization according to claim 13 assembling is characterized in that the described end power-off modular of registering one's residence is at least one isolating switch or relay, the quantity of its quantity and described modular electric energy metering machine is consistent.
  15. But 15. the electric energy meter of modularization according to claim 14 assembling it is characterized in that, also comprise: a line ball block assembly, be arranged on described phase line output line and the zero line output line, be convenient to installation and maintenance, and make the cabling standard.
  16. But 16. the electric energy meter of modularization according to claim 3 assembling it is characterized in that, also comprise:
    One modular electric energy metering machine front end power-off modular; In order to cut off the one group of phase line incoming line that gets into a certain appointment electricity consumer modular electric energy metering machine; Described modular electric energy metering machine front end power-off modular is at least one isolating switch or relay, and the quantity of its quantity and described modular electric energy metering machine is consistent.
  17. 17. but the electric energy meter of modularization according to claim 16 assembling; It is characterized in that; 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 control.
  18. But 18. the electric energy meter of modularization according to claim 17 assembling 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.
  19. But 19. the electric energy meter of modularization according to claim 1 assembling is characterized in that 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.
  20. 20. but the electric energy meter of modularization according to claim 1 assembling; It is characterized in that; Described monitoring decision circuitry is a control module; The one of which input interface links to each other with the output terminal of described current monitoring circuit, and an input interface links to each other with described pulse observation circuit output terminal, judges that through described control module said modular electric energy metering machine breaks down.
  21. 21. but the electric energy meter of modularization according to claim 17 assembling; 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.
  22. But 22. the electric energy meter of modularization according to claim 21 assembling 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 said comparer, and the inverting input of said 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, through amplifying circuit separately signal is amplified, and transfers to the in-phase input end and the inverting input of said comparer through buffer circuit, and the output terminal of described comparer is exported a high potential signal when both are unequal.
  23. But 23. the electric energy meter of modularization according to claim 21 assembling 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 said comparer, and the inverting input of said 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, and to the in-phase input end that signal amplifies, also the process buffer circuit transfers to said comparer, the inverting input of said comparer is set a reference voltage through amplifying circuit; When said voltage was higher than reference voltage, the output terminal of described comparer was exported a high potential signal.
  24. But 24. the electric energy meter of modularization according to claim 23 assembling it is characterized in that, 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 a described data counts circuit and a control module.
  25. But 25. the electric energy meter of modularization according to claim 24 assembling it is characterized in that, also comprise: a memory circuit; It is connected with described data counts circuit; When having a power failure,, store in the described memory circuit the energy value of described data counts circuit accumulative total; When restoring electricity, read the energy value of storing in the described memory circuit by described data counts circuit.
  26. But 26. the electric energy meter of modularization according to claim 2 assembling is characterized in that also comprise: prevent the unit of casing unnormal unlocking, it comprises: one opens an observation circuit or an executive circuit, wherein,
    Described unlatching observation circuit, whether its cap in order to the monitoring casing is opened, and when opening, sends monitor signal and gives a control module, 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.
  27. But 27. the electric energy meter of modularization according to claim 3 assembling is characterized in that also comprise: prevent the unit of box body unnormal unlocking, it comprises: one opens an observation circuit or an executive circuit, wherein,
    Described unlatching observation circuit, whether its cap in order to the monitoring box body is opened, and when opening, sends monitor signal and gives a control module, 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.
  28. 28. but the electric energy meter of modularization according to claim 26 assembling 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 said casing, 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 said casing, when encapsulation place does not have the space, described travel switch no signal output, on the contrary then travel switch produces described monitor signal.
  29. 29. but the electric energy meter of modularization according to claim 27 assembling 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 said 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 said 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.
  30. But 30. the electric energy meter of modularization according to claim 24 assembling 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 each described box body;
    One drive circuit, it drives said display screen and shows power consumption according to the data-signal of the said 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 said display screen and shows power consumption according to the data-signal that receives said counting unit output;
    One card reader; It is connected with described control module, through 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.
  31. 31. but the electric energy meter of modularization according to claim 30 assembling 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 RF identification command information; To purchase electric quantity data and transfer 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 purchased electric quantity data, described data counts circuit power consumption data and user purchased electric quantity data and compare; Obtain difference, demonstrate through described whole display unit;
    When said difference is lower than a certain threshold value; Described relay and/or isolating switch break off; 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 RF identification command information through the described electricity card purchased;
    Described inquirying card is to described card reader emission 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 through described whole display unit.
  32. 32. but according to the electric energy meter of claim 12,18,20, the assembling of 21 or 23 described modularizations, it is characterized in that, also comprise an acoustic-optic alarm, under abnomal condition, send sound and light alarm.
  33. But 33. the electric energy meter of modularization according to claim 16 assembling 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 convert command information into, controls resetting or breaking off of described relay and/or isolating switch.
  34. 34. but the electric energy meter of modularization according to claim 17 assembling; 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 through a standard interface, realizes plug and play.
  35. 35. but the electric energy meter of modularization according to claim 34 assembling; 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 said 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.
  36. 36. but the electric energy meter of modularization according to claim 35 assembling is characterized in that described communication unit transmits with carrier-wave transmission, Ethernet transmission, PSNT Network Transmission, GPRS transmission, GSM transmission or CDMA transmission mode.
CN2007100535798A 2007-10-17 2007-10-17 Modular assembled electrical energy meter Expired - Fee Related CN101413965B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2007100535798A CN101413965B (en) 2007-10-17 2007-10-17 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

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CN2007100535798A CN101413965B (en) 2007-10-17 2007-10-17 Modular assembled electrical energy meter

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