CN201503447U - Modularly assembled electric power metering device - Google Patents

Modularly assembled electric power metering device Download PDF

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Publication number
CN201503447U
CN201503447U CN2009201507408U CN200920150740U CN201503447U CN 201503447 U CN201503447 U CN 201503447U CN 2009201507408 U CN2009201507408 U CN 2009201507408U CN 200920150740 U CN200920150740 U CN 200920150740U CN 201503447 U CN201503447 U CN 201503447U
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China
Prior art keywords
module
electric power
unit
processing unit
metering device
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Expired - Fee Related
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CN2009201507408U
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Chinese (zh)
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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Abstract

The utility model relates to a modularly assembled electric power metering device, which comprises a basic module and a metering module connected to the same. The basic module is an expansion foundation for an electric power metering device and at least comprises one power supply, one basic processing unit and one internal communication unit, wherein the basic processing unit is connected to the power supply to obtain electric power supply, and the internal communication unit connects function unit modules to the basic processing unit. The metering module is connected to electric power lines to realize electricity metering function and controlled by the basic processing unit.

Description

The electric power metering device of modularization assembling
Technical field
The utility model relates to a kind of electric power metering device, particularly be a kind of can being connected with basic module, realize the electric power metering device of the modularization assembling of assembling.
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 ammeter, 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.
The utility model creator 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 purpose of this utility model is, provides a kind of electric power metering device of modularization assembling, in order to overcome above-mentioned defective.
For achieving the above object, the technical solution adopted in the utility model is, a kind of electric power metering device of modularization assembling is provided, and it comprises: a basic module and the metering module that is attached thereto, wherein,
Described basic module is the spread foundation of electric power metering device, and it comprises at least:
One power supply;
One basic processing unit, it is connected with described power supply, in order to obtain electric power supply;
One intercommunication unit, it links together described functional unit block and described basic processing unit;
Described metering module is connected with line of electric force, and in order to realize the function of electricity consumption metering, it is controlled by described basic processing unit.
Preferable, described basic module also comprises: a display circuit, it is connected with described basic processing unit, in order to video data.
Preferable, described basic module also comprises: a memory circuit, it is connected with described basic processing unit, in order to the storage data.
Wherein, described metering module comprises:
One voltage acquisition unit is in order to directly to obtain first voltage signal from line of electric force;
One current acquisition unit is in order to directly to obtain second voltage signal that characterizes the real-time current value from line of electric force;
One first processing unit, it is connected with the current acquisition unit with described voltage acquisition unit respectively, receives described first voltage signal and second voltage signal, exports one first energy value signal;
One optical coupling isolation circuit, its light signal transmitting terminal is connected with the output terminal of described first processing unit, and its conversion of signals end is connected with described intercommunication unit.
Preferable, also at least one functional module is connected with intercommunication unit in the described basic module.
Wherein, described functional module is the pre paid functionality module, and it comprises:
One card reader circuit is in order to read the data in the storage medium;
One second processing unit, it is connected with described card reader, in order to receive data;
One second intercommunication unit, its respectively with described basic module in the intercommunication unit be connected with described second processing unit.
Wherein, described functional module is the communication function module, and it comprises:
One external communication interface circuit, it is in order to carry out data communication with external unit;
One the 3rd intercommunication unit, its respectively with described basic module in the intercommunication unit be connected with described external communication interface circuit.
Preferable, also comprise a box body, described measuring apparatus local or all be arranged in the described box body, described basic module also comprises a performance element, it is connected with described basic processing unit, by described basic processing unit control described line of electric force is disconnected; Described functional module is an electronics envelope functional module, and it comprises:
Whether one trigger element is opened in order to detect described box body, produces a moving envelope signal when opening;
One the 3rd processing unit, it is connected with described trigger element, with judging whether described moving envelope signal is illegal unlatching;
One the 4th intercommunication unit, respectively with described basic module in the intercommunication unit be connected with described the 3rd processing unit.
Wherein, described first processing unit is a ratio multiplicative integral integrated chip, and it comprises:
One ratio processing section is converted to real-time magnitude of voltage with described first voltage signal, and described second voltage signal is converted to the real-time current value;
One multiplication part multiplies each other described real-time current value and enforcement magnitude of voltage, obtains the instantaneous power value;
One integral part carries out integration with the instantaneous power value of obtaining in described first time of presetting, obtain the first energy value signal.
Wherein, described intercommunication unit, the second intercommunication unit, the 3rd intercommunication unit and the 4th intercommunication unit are RS422 or RS485 bus.
The beneficial effects of the utility model are compared with the prior art, one, be core with the basic module, and the various functions that can electricity consumption situ metrology administrative institute of integrated power department need by modular characteristics, and dwindled volume greatly;
Two, because the utility model modular characteristics makes production division realize requiring to customize production according to electricity consumption department, thereby reach the scale High-efficient Production, reduced production cost;
Three, make power department in application process, greatly reduce metering overall investment cost and installation work-hour by the utility model, provide the on-the-spot fine-grained management of electricity consumption necessary technical conditions simultaneously, use electrical loss thereby reduced;
Four, the utility model 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
Fig. 1 is the schematic perspective view of the electric power metering device of the utility model modularization assembling;
Fig. 2 is functional module schematic perspective view in the electric power metering device of the utility model modularization assembling;
Fig. 3 is the annexation schematic perspective view between functional module and the basic module in the electric power metering device of the utility model modularization assembling;
Fig. 4 is the circuit diagram of basic module in the electric power metering device of the utility model modularization assembling;
Fig. 5 is the circuit diagram of pre paid functionality module in the electric power metering device of the utility model modularization assembling;
Fig. 6 is the circuit diagram one of electronics envelope functional module in the electric power metering device of the utility model modularization assembling;
Fig. 7 is the circuit diagram two of electronics envelope functional module in the electric power metering device of the utility model modularization assembling;
Fig. 8 is the circuit diagram one of communication function module in the electric power metering device of the utility model modularization assembling;
Fig. 9 is the circuit diagram two of communication function module in the electric power metering device of the utility model modularization assembling;
Figure 10 is the circuit diagram of metering module in the electric power metering device of the utility model modularization assembling;
Embodiment
Figure 11 is electronics envelope unit in the electric power metering device of the utility model modularization assembling or the exploded view of electronics envelope functional module one embodiment.
Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.
See also shown in Figure 1; it is the schematic perspective view of the electric power metering device of the utility model modularization assembling; it has a box body 10 electric power metering device 1 of described modularization assembling; it is arranged on the basic module 11; be used for playing a protective role, little from overall appearance itself and general electric power metering device difference.
See also shown in Figure 2ly, it is functional module schematic perspective view in the electric power metering device of the utility model modularization assembling; In order to embody modular notion, realize the customizing functionsization of electric power metering device, independent functional units is just carried out the combination and the function expansion of structure with modular form here.It can be the pre paid functionality module, the communication function module, metering module or electronics envelope functional module etc., described functional module 121 has a contact pin 1211 from the angle of integrated structure, described basic module 11 corresponding setting have slot 122, described functional module 121 combines by contact pin 1211 and described slot 122, certainly such structure is reciprocity, be on the described basic module 11 contact pin to be set, described functional module 121 is provided with socket, on the angle of circuit, both combinations belong to the correspondence combination of data-interface, simultaneously described grafting has also realized providing the power supply supply to each functional module 121 simultaneously in conjunction with not only having realized data interaction.
See also shown in Figure 3ly, it is the annexation schematic perspective view between the functional module and basic module in the electric power metering device of the utility model modularization assembling; The content that its emphasis will be expressed is, removes described box body 10, has other functional unit device on described basic module 11, as display element 111, in order to video data; Memory device 112 is arranged, and in order to the storage data, the substrate of described basic module is provided with slot 122, in order to carrying out socket connection with described functional module 121, thereby forms a complete Application of Power Metering Instruments.
See also shown in Figure 4ly, it is the circuit diagram of basic module in the electric power metering device of the utility model modularization assembling, and the circuit part of described basic module comprises:
One power supply carries out electric power supply with electrical component with thinking in the utility model modularization electric power metering device; It comprises that a voltage transformer (VT) T is arranged on the phase line L and zero line N of line of electric force, be respectively arranged with diode D1, D2 at two output terminals of described voltage transformer (VT) T and carry out rectification, be provided with capacitor C 1 simultaneously, finally produce the low-tension supply signal by mu balanced circuit chip IC 1 in order to filtering;
One basic processing unit, it is that a microprocessor MCU is the processing core of the utility model modularization electric power metering device, realization is to the control and the scheduling of other unit in the described basic module and other functional modules of being attached thereto, and it is connected with described power supply, obtains the power supply supply;
One intercommunication unit, it comprises a bus controller IC4, its correspond to RS422 or RS485 bus one of them, it is connected with described microprocessor MCU, simultaneously also as the data-interface part JP1-JP3 in the described slot, realize and the combining of the data-interface of described functional module contact pin, thereby realization data interaction, and then described functional module and described basic module be combined into an organic whole, in order to join, also comprise a finJP slot and described basic processing unit simultaneously with metering module.
Also comprise a performance element, it is the relay on a setting and the power circuit, the output terminal of described basic processing unit is connected with the trigger end of described relay J by a triode Q1, when described microprocessor MCU sends control signal, described triode Q1 conducting, thus the relay J action is disconnected line of electric force.
In order to realize better technique effect, described basic module also comprises: a display circuit, and it is connected with described microprocessor MCU, and in order to video data, these data can be power consumption, also can make other related data.
Described basic module can also comprise: a memory circuit, it also is connected with described microprocessor MCU, in order to storage continuous data, daily record, related datas such as ROMPaq.
See also shown in Figure 5ly, it is the circuit diagram of pre paid functionality module in the electric power metering device of the utility model modularization assembling; Described pre paid functionality module comprises:
One card reader circuit, in order to read the data in the storage medium, described card reader circuit comprises an antenna 5L1 and is attached thereto the card reader chip 5IC2 that connects;
One second processing unit, it is a microprocessor 5MCU, and is connected with described card reader chip 5IC2, in order to receive and deal with data;
One second intercommunication unit, it comprises a bus controller chip 5IC1, JP is corresponding with described contact pin for its data-interface part, in order to respectively with described basic module in the intercommunication unit be connected with described second processing unit, from described basic processing unit, obtain power consumption value, carry out reducing with the amount of user prepayment, when available remaining reaches or is lower than a certain predetermined value, described microprocessor 5MCU sends an alarm signal by the described second intercommunication unit to described basic module, microprocessor MCU control corresponding relays J by described basic module produces action, cuts off electric power supply.Wherein, one of bus mode of RS422 or RS485 can be selected in the described second intercommunication unit, but consistent with the bus mode of described intercommunication unit.
See also Fig. 6 and shown in Figure 7, it is respectively the circuit diagram one and the synoptic diagram two of electronics envelope functional module in the electric power metering device of the utility model modularization assembling; Described electronics envelope functional module comprises: a trigger element, and whether it is arranged on described box body 10 encapsulation place usually and is opened in order to detect described box body 10, produces a moving envelope signal when opening;
One the 3rd processing unit, it is a microprocessor 4MCU (3MCU), and is connected with described trigger element, receives described moving envelope signal, with the illegal unlatching of judging whether described moving envelope signal is represented;
One the 4th intercommunication unit, it comprises a bus controller chip 4IC1 (3IC1), its data-interface part JP is corresponding with the contact pin of described electronics envelope functional module, in order to respectively with described basic module in intercommunication cell data interface section JP1 be connected with described microprocessor 4MCU (3MCU), in judgement is when illegally opening, described microprocessor 4MCU (3MCU) sends an alarm signal by described the 4th intercommunication unit to described basic module, microprocessor MCU control corresponding relays J by described basic module produces action, cuts off electric power supply.Wherein, one of bus mode of RS422 or RS485 can be selected in described the 4th intercommunication unit, but consistent with the bus mode of described intercommunication unit.
Described trigger element can be normally closed switch K, produces moving envelope signal (consulting shown in Figure 7) when box body 10 is opened;
Described trigger element can comprise: an illuminating part such as LED lamp, and it produces a light signal; One light receiving piece 4Q1, the corresponding formation in its position light path (consulting shown in Figure 6) with described LED lamp; One block piece 13, it is arranged under normal condition between described light receiving piece 4Q1 and the LED lamp, in order to the blocking-up light path; When the relative position relation change of described box body and basic module, described block piece 13 leaves the position between described light receiving piece 4Q1 and the LED lamp, conducting light paths, and described light receiving piece 4Q1 produces a trigger pip.Certainly the interference for fear of extraneous light also can be provided with a light shield 14 (consulting Figure 11), it is installed in the end box 15, described box body 10 is provided with the hole, box 15 of the described end and box body 10 combine, thereby basic module 11 and other functional modules 121 are enclosed wherein, described block piece 14 can be bolt, its successively from the described box body 10 hole penetrate the aerial of described light shield 14, thereby blocked the light path between described light receiving piece 4Q1 and the LED lamp.
See also Fig. 8, shown in Figure 9, it is respectively the circuit diagram one and the synoptic diagram two of communication function module in the electric power metering device of the utility model modularization assembling; Described communication function module, it comprises:
One external communication interface circuit, it will consider the single duplex mode or the full duplex mode of data transmission here in order to carry out data communication with external unit, thus the coupling of realization, but this is not need creative work just can understand for those skilled in the art, is not just giving unnecessary details here;
One the 3rd intercommunication unit, it comprises a bus controller chip 1IC (2IC), JP is corresponding with described contact pin in its data-interface portion, in order to realize mutual with the data of extraneous memory device, its respectively with described basic module in the intercommunication unit be connected with the described external communication interface JP2 of circuit part, can transmit it on the described basic module by described intercommunication unit; Wherein, described the 3rd intercommunication unit its can select RS422 or RS485 bus mode one of them carry out work, but it is consistent with the bus mode of described intercommunication unit, therefore one in two figure in the present embodiment have realized full-duplex mode (referring to 9), and one is the working method (referring to Fig. 8) that realizes single duplex.
Referring to shown in Figure 10, it is the circuit diagram of metering module in the electric power metering device of the utility model modularization assembling, and described metering module comprises:
One voltage acquisition unit, in order to directly to obtain first voltage signal from line of electric force, described voltage acquisition unit is except comprising: a voltage sample assembly 6R3, it directly gathers real-time voltage signal from described phase line; The one dropping resistor 6R5 that links to each other with described conduction sampling part 6R3, it is output as described first voltage signal; An and power circuit, its to described real-time voltage signal carry out voltage stabilizing, filtering converts supply voltage to and exports the electricity consumption device that is arranged on the control panel to, described power circuit comprises electric capacity 6C1, resistance 6R1 and the diode 6D2 of series connection successively, also have the second stabilivolt 6DW1, electric capacity 6C2 and electric capacity 6C22 in parallel, the supply voltage of its output is received by other electricity consumption devices.;
One current acquisition unit is in order to directly to obtain second voltage signal that characterizes the real-time current value from line of electric force; The copper-manganese sheet R0 of described current sampling unit on being positioned at line of electric force L, be in series with dropping resistor 6R6,6R9 respectively at its two ends;
One first processing unit, it is connected with the current acquisition unit with described voltage acquisition unit respectively, receives described first voltage signal and second voltage signal, exports one first energy value signal; Described first processing unit is a ratio multiplicative integral integrated chip 6IC3, and its output terminal obtains first voltage signal and corresponding second voltage signal of line of electric force A electric current respectively; It comprises: a ratio processing section, described first voltage signal is converted to real-time magnitude of voltage, and described second voltage signal is converted to the real-time current value;
One multiplication part multiplies each other described real-time current value and enforcement magnitude of voltage, converts the instantaneous power value to;
One integral part carries out integration with the performance number of obtaining in described first time of presetting, obtain first energy value.
One isolates change-over circuit, and the light signal transmitting terminal is connected with the output terminal of described first processing unit, and its conversion of signals end is connected with described intercommunication unit.It is an optical coupling isolation circuit 6IC2, its light signal transmitting terminal is connected with the output terminal of described ratio multiplicative integral integrated chip 6IC3, data-interface part finJP in the slot of its conversion of signals end foutJP and described basic module is connected, and then combines with described basic processing unit; Simultaneously before described light signal transmitting terminal, be provided with a 6LED lamp, power consumption arranged in order to indicate on the described line of electric force.
More than explanation is novel just illustrative for this; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection domain of the present utility model.

Claims (10)

1. the electric power metering device of modularization assembling is characterized in that it comprises: a basic module and the metering module that is attached thereto, wherein,
Described basic module is the spread foundation of electric power metering device, and it comprises at least:
One power supply;
One basic processing unit, it is connected with described power supply, in order to obtain electric power supply;
One intercommunication unit, it links together described metering module and described basic processing unit;
Described metering module is connected with line of electric force, and in order to realize the function of electricity consumption metering, it is controlled by described basic processing unit.
2. the electric power metering device of modularization assembling according to claim 1, it is characterized in that described basic module also comprises: a display circuit, it is connected with described basic processing unit, in order to video data.
3. the electric power metering device of modularization assembling according to claim 2 is characterized in that described basic module also comprises: a memory circuit, it is connected with described basic processing unit, in order to the storage data.
4. the electric power metering device of modularization assembling according to claim 2 is characterized in that described metering module comprises:
One voltage acquisition unit is in order to directly to obtain first voltage signal from line of electric force;
One current acquisition unit is in order to directly to obtain second voltage signal that characterizes the real-time current value from line of electric force;
One first processing unit, it is connected with the current acquisition unit with described voltage acquisition unit respectively, receives described first voltage signal and second voltage signal, exports one first energy value signal;
One optical coupling isolation circuit, its light signal transmitting terminal is connected with the output terminal of described first processing unit, and its conversion of signals end is connected with described intercommunication unit.
5. the electric power metering device of modularization assembling according to claim 4, it is characterized in that, also at least one functional module is connected with the intercommunication unit of described basic module, described metering module and described functional module, they and described basic module are that the relation by slot and contact pin becomes one.
6. the electric power metering device of modularization assembling according to claim 5 is characterized in that described functional module is the pre paid functionality module, and it comprises:
One card reader circuit is in order to read the data in the storage medium;
One second processing unit, it is connected with described card reader, in order to receive data;
One second intercommunication unit, its respectively with described basic module in the intercommunication unit be connected with described second processing unit.
7. the electric power metering device of modularization assembling according to claim 6 is characterized in that described functional module is the communication function module, and it comprises:
One external communication interface circuit, it is in order to carry out data communication with external unit;
One the 3rd intercommunication unit, its respectively with described basic module in the intercommunication unit be connected with described external communication interface circuit.
8. the electric power metering device of modularization assembling according to claim 7, it is characterized in that, also comprise: a box body, described measuring apparatus local or all be arranged in the described box body, described basic module also comprises a performance element, it is connected with described basic processing unit, by described basic processing unit control described line of electric force is disconnected;
Described functional module is an electronics envelope functional module, and it comprises:
Whether one trigger element is opened in order to detect described box body, produces a moving envelope signal when opening;
One the 3rd processing unit, it is connected with described trigger element, with judging whether described moving envelope signal is illegal unlatching;
One the 4th intercommunication unit, respectively with described basic module in the intercommunication unit be connected with described the 3rd processing unit.
9. the electric power metering device of modularization assembling according to claim 5 is characterized in that described first processing unit is a ratio multiplicative integral integrated chip, and it comprises:
One ratio processing section is converted to real-time magnitude of voltage with described first voltage signal, and described second voltage signal is converted to the real-time current value;
One multiplication part multiplies each other described real-time current value and enforcement magnitude of voltage, obtains the instantaneous power value;
One integral part carries out integration with the instantaneous power value of obtaining in described first time of presetting, obtain the first energy value signal.
10. the electric power metering device of modularization assembling according to claim 8 is characterized in that described intercommunication unit, the second intercommunication unit, the 3rd intercommunication unit and the 4th intercommunication unit are RS422 or RS485 bus.
CN2009201507408U 2009-04-27 2009-04-27 Modularly assembled electric power metering device Expired - Fee Related CN201503447U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142414A (en) * 2014-08-11 2014-11-12 无锡锐泰节能系统科学有限公司 Detachable combined electricity meter
CN105182020A (en) * 2015-09-28 2015-12-23 南方电网科学研究院有限责任公司 Multipath electric energy metering device capable of being modularly extended and metering method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142414A (en) * 2014-08-11 2014-11-12 无锡锐泰节能系统科学有限公司 Detachable combined electricity meter
CN105182020A (en) * 2015-09-28 2015-12-23 南方电网科学研究院有限责任公司 Multipath electric energy metering device capable of being modularly extended and metering method

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