CN204925192U - Removable system of electric energy meter communication module - Google Patents
Removable system of electric energy meter communication module Download PDFInfo
- Publication number
- CN204925192U CN204925192U CN201520754829.0U CN201520754829U CN204925192U CN 204925192 U CN204925192 U CN 204925192U CN 201520754829 U CN201520754829 U CN 201520754829U CN 204925192 U CN204925192 U CN 204925192U
- Authority
- CN
- China
- Prior art keywords
- communication module
- interface
- communication
- energy meter
- electric energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 186
- 238000002955 isolation Methods 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims description 33
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 22
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 14
- 239000003381 stabilizer Substances 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 abstract 3
- 241000208682 Liquidambar Species 0.000 abstract 1
- 235000006552 Liquidambar styraciflua Nutrition 0.000 abstract 1
- 235000013399 edible fruits Nutrition 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a removable system of electric energy meter communication module, including power supply base plate module, non - isolation communication module and isolation communication module, non - isolation communication module of during operation and of keeping apart among the communication module are connected with power supply base plate module, power supply base plate module includes alternating current transformer, a carrier signal coupled interface, power output interface and a communication interface etc, the ac energisation power converts two tunnel outputs into through the alternating current transformer, exports non - isolations communication module through looks adaptation and a pluggable communication interface and the 2nd communication interface with power supply voltage all the way, and another sweetgum fruit is crossed looks adaptation and pluggable power output interface and is exported power supply voltage with power input connector and keep apart communication module, non - isolation with keep apart communication module and all adopt just pluggable communication interface of an ability and a communication interface looks adaptation. This removable system of electric energy meter communication module has compatible strong advantage.
Description
Technical field
The utility model relates to design of electronic circuits technical field, is specifically related to the replaceable system of a kind of electric energy meter communication module.
Background technology
Current most of electric energy meter only designs a kind of communication module, and this communication module is fixed and non-exchange.And due to the diversity in market, for a electric energy meter often different client different communication needs can be proposed, thus need different communication modules to meet this requirement.Also there is the communication module of various ways in currently available technology, such as, isolate communication module (485, MBUS etc.) and non-isolated communication module (PLC, RF etc.) etc.
So existing electric energy meter communication module lacks compatible, if meet the different requirements of client, then need according to communication module requirement to produce different circuit hardware versions, cause hardware version too various, this also must cause some material differences, explained hereafter difference, even affect firmware design.
Utility model content
Therefore, the technical problems to be solved in the utility model is that overcoming electric energy meter communication module of the prior art lacks compatible defect, thus the replaceable system of electric energy meter communication module providing a kind of compatibility strong.
For this reason, the replaceable system of a kind of electric energy meter communication module of the present utility model, comprise power supply substrate module, non-isolated communication module and isolation communication module, during work, described non-isolated communication module is connected with described power supply substrate module with in isolation communication module;
Described power supply substrate module comprises AC transformer, the first current rectifying and wave filtering circuit, DCDC reduction voltage circuit, first carrier signal coupling interface, power output interface and the first communication interface; The input end of described AC transformer is connected with communication power supply respectively with described first carrier signal coupling interface, and the first output terminal is connected with the input end of described first current rectifying and wave filtering circuit, and the second output terminal is connected with described power output interface; The output terminal of described first current rectifying and wave filtering circuit is connected with the input end of described DCDC reduction voltage circuit; The output terminal of described DCDC reduction voltage circuit is connected with described first communication interface;
Described non-isolated communication module comprises the second carrier signal coupling interface and the second communication interface, described second carrier signal coupling interface and the suitable and pluggable connection of described first carrier signal coupling interface, described second communication interface and the suitable and pluggable connection of described first communication interface;
Described isolation communication module comprises power input interface and the 3rd communication interface, described power input interface and the suitable and pluggable connection of described power output interface, described 3rd communication interface and the suitable and pluggable connection of described first communication interface.
Preferably, the armature winding two ends of described AC transformer are as input end, and the wherein one end at armature winding two ends is connected with the live wire of communication power supply, and wherein the other end is connected with the zero line of communication power supply; Secondary winding two ends are as the first output terminal; Auxiliary winding two ends are as the second output terminal.
Preferably, the model of described AC transformer is DB35K-220ZT-K.
Preferably, described isolation communication module also comprises the second current rectifying and wave filtering circuit and linear voltage regulator;
Described power input interface is connected with the input end of described second current rectifying and wave filtering circuit, and the output terminal of described second current rectifying and wave filtering circuit is connected with the input end of described linear voltage regulator.
Preferably, described non-isolated communication module is PLC communication module or RF communication module.
Preferably, described isolation communication module is 485 communication modules or M-BUS communication module.
Preferably, also comprise LDO voltage stabilizer, its input end is connected with the output terminal of described DCDC reduction voltage circuit.
Preferably, described electric energy meter is guide rail type electrical energy meter.
Technical solutions of the utility model, tool has the following advantages:
The replaceable system of electric energy meter communication module that the utility model provides, by two output terminals of the AC transformer of substrate module of powering, communication power supply can be converted to two-way mutually isolated and relatively low alternating current, one tunnel is after rectification, filtering, DCDC conversion etc., can export through the first communication interface, again by being connected with the second communication interface on non-isolated communication module is pluggable, for non-isolated communication module provides power supply.Another road exports through power output interface, then by being connected with the power input interface on isolation communication module is pluggable, for isolation communication module provides power supply.And by arranging the first communication interface of state's net carrier wave code requirement on power supply substrate module, it can be suitable with the communication interface of isolating on communication module with non-isolated communication module respectively.During work, power supply substrate module with non-isolated communication module with in any one grafting isolated in communication module, can carry out communication work, when communication module needs to change or damage, can be pulled up and be changed with other communication module, thus be improve the compatibility of electric energy meter communication module.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit block diagram of the replaceable system of electric energy meter communication module of a kind of embodiment of the utility model;
Fig. 2 is the circuit block diagram of the replaceable system of electric energy meter communication module of the another kind of embodiment of the utility model.
Reference numeral: 1-powers substrate module, 2-non-isolated communication module, and 3-isolates communication module, 11-AC transformer, 12-first current rectifying and wave filtering circuit, 13-DCDC reduction voltage circuit, 14-first carrier signal coupling interface, 15-power output interface, 16-first communication interface, 17-LDO voltage stabilizer, 21-second carrier signal coupling interface, 22-second communication interface, 31-power input interface, 32-the 3rd communication interface.
Embodiment
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.Unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be directly be connected, also indirectly can be connected by intermediary, can also be the connection of two element internals, can be wireless connections, also can be wired connection.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In addition, if below in the described different embodiment of the utility model involved technical characteristic do not form conflict each other and just can be combined with each other.
Fig. 1 shows a kind of circuit block diagram of the replaceable system of electric energy meter communication module of embodiment, as shown in Figure 1, this system comprises power supply substrate module 1, non-isolated communication module 2 and isolation communication module 3, and during work, non-isolated communication module 2 is connected with power supply substrate module 1 with in isolation communication module 3.Preferably, above-mentioned electric energy meter is guide rail type electrical energy meter.
Power supply substrate module 1 comprises AC transformer 11, first current rectifying and wave filtering circuit 12, DCDC reduction voltage circuit 13, first carrier signal coupling interface 14, power output interface 15 and the first communication interface 16; The input end of AC transformer 11 is connected with communication power supply respectively with described first carrier signal coupling interface 14, and the first output terminal is connected with the input end of the first current rectifying and wave filtering circuit 12, and the second output terminal is connected with power output interface 15; The output terminal of the first current rectifying and wave filtering circuit 12 is connected with the input end of DCDC reduction voltage circuit 13; The output terminal of DCDC reduction voltage circuit 13 is connected with the first communication interface 16, for non-isolated communication module 2 provides supply voltage.
Non-isolated communication module 2 comprises the second carrier signal coupling interface 21 and the second communication interface 22, second carrier signal coupling interface 21 and the suitable and pluggable connection of first carrier signal coupling interface 14, communication power supply (civil power) is after first carrier signal coupling interface 14 and the second carrier signal coupling interface 21, be incorporated on non-isolated communication module 2, then the carrier signal needed for non-isolated communication module 2 (as PLC module) can be got after the circuit such as signal coupling.When non-isolated communication module 2 does not need to obtain this carrier signal, when not namely being PLC module, then this first carrier signal coupling interface 14 and the second carrier signal coupling interface 21 can be used as the support interface of support circuit plate.Second communication interface 22 and the suitable and pluggable connection of the first communication interface 16.Preferably, first carrier signal coupling interface 14 and the first communication interface 16 are cloudy interface, and the second carrier signal coupling interface 21 and the second communication interface 22 are positive interface.When needing non-isolated communication module 2 to be connected with power supply substrate module 1, by the mutual grafting of corresponding yin, yang interface, do not need then non-isolated communication module 2 to be pulled up when connecting.Preferably, non-isolated communication module 2 can be PLC communication module, RF communication module etc.
Isolation communication module 3 comprises power input interface 31 and the 3rd communication interface 32, power input interface 31 and the suitable and pluggable connection of power output interface 15, the 3rd communication interface 32 and the suitable and pluggable connection of the first communication interface 16.Preferably, power output interface 15 is cloudy interface, and power input interface 31 and the 3rd communication interface 32 are positive interface.When needing isolation communication module 3 to be connected with power supply substrate module 1, by the mutual grafting of corresponding yin, yang interface, then isolation communication module 3 can be pulled up when not needing to connect.Preferably, isolating communication module 3 can be 485 communication modules, M-BUS communication module etc.
The principle of work of the replaceable system of above-mentioned electric energy meter communication module is: AC transformer 11 is by after the communication power supply step-down of input, by the first output terminal of AC transformer 11 and the second output terminal export two-way mutually isolated and relatively low alternating current, wherein lead up to after the first current rectifying and wave filtering circuit 12 rectification and filtering, convert direct current relatively stably to, the supply voltage of other components and parts (as processor) and non-isolated communication module 2 on power supply substrate module is obtained again after DCDC reduction voltage circuit 13, non-isolated communication module 2 is provided it to through the first communication interface 16 and the second communication interface 22.
Wherein another rood is to the supply voltage of isolation communication module 3, provides it to isolation communication module 3 through power output interface 15 and power input interface 31.
Non-isolated communication module 2 is all connected with power supply substrate module 1 by same communication interface (the first communication interface 16) with isolation communication module 3, power after powering on and can realize data between processor on substrate module 1 and communication module 2 or 3 and pass mutually, realize the communication between electric energy meter and other external units by communication module.Communication interface is according to state's net carrier wave code requirement design, and different communication modules comprises isolation and non-isolated communication module this communication interface all compatible.
The replaceable system of above-mentioned electric energy meter communication module, by two output terminals of the AC transformer of substrate module of powering, communication power supply can be converted to two-way mutually isolated and relatively low alternating current, one tunnel is after rectification, filtering, DCDC conversion etc., can export through the first communication interface, again by being connected with the second communication interface on non-isolated communication module is pluggable, for non-isolated communication module provides power supply.Another road exports through power output interface, then by being connected with the power input interface on isolation communication module is pluggable, for isolation communication module provides power supply.And by arranging the first communication interface of state's net carrier wave code requirement on power supply substrate module, it can be suitable with the communication interface of isolating on communication module with non-isolated communication module respectively.During work, power supply substrate module with non-isolated communication module with in any one grafting isolated in communication module, can carry out communication work, when communication module needs to change or damage, can be pulled up and be changed with other communication module, thus be improve the compatibility of electric energy meter communication module.
As a kind of preferred implementation, the armature winding two ends of AC transformer 11 are as its input end, and the wherein one end at armature winding two ends is connected with the live wire of communication power supply, and wherein the other end is connected with the zero line of communication power supply.Secondary winding two ends are as its first output terminal, and auxiliary winding two ends are as its second output terminal.Preferably, the model of AC transformer 11 is DB35K-220ZT-K.
As a kind of preferred implementation, isolation communication module 3 also comprises the second current rectifying and wave filtering circuit and linear voltage regulator; Power input interface 31 is connected with the input end of the second current rectifying and wave filtering circuit, and the output terminal of the second current rectifying and wave filtering circuit is connected with the input end of linear voltage regulator.The voltage that the output terminal of linear voltage regulator exports provides supply voltage for other components and parts on isolation communication module.By arranging linear voltage regulator, improve the stability of supply voltage.
As a kind of preferred implementation, first current rectifying and wave filtering circuit 12 and the second current rectifying and wave filtering circuit all can adopt bridge rectifier filter circuit to realize, but be not limited to be realized by bridge rectifier filter circuit, also can adopt other forms of current rectifying and wave filtering circuit to realize.First current rectifying and wave filtering circuit 12 comprises the first diode, second diode, 3rd diode, 4th diode and the first electric capacity, the negative electrode of the first diode is connected with the anode of the second diode, as the first input end of the first current rectifying and wave filtering circuit 12, be connected with one end of secondary winding, the anode of the 3rd diode is connected with the negative electrode of the 4th diode, as the second input end of the first current rectifying and wave filtering circuit 12, be connected with the other end of secondary winding, the negative electrode of the second diode is connected with the negative electrode of the 3rd diode, as the first output terminal of the first current rectifying and wave filtering circuit 12, be connected with the input end of DCDC reduction voltage circuit 13, the anode of the first diode is connected with the anode of the 4th diode, as the second output head grounding of the first current rectifying and wave filtering circuit 12, first electric capacity is connected across between described first output terminal and the second output terminal.In like manner, the second current rectifying and wave filtering circuit is identical with the first current rectifying and wave filtering circuit 12, no longer describes in detail herein.
Preferably, DCDC reduction voltage circuit 13 adopts DCDC chip to realize.The model of such as DCDC chip is LV2842XLVDDCR.
As a kind of preferred implementation, as shown in Figure 2, the replaceable system of electric energy meter communication module also comprises LDO voltage stabilizer 17, and its input end is connected with the output terminal of DCDC reduction voltage circuit 13, and output terminal is connected with the power end of other components and parts (as processor) on power supply substrate module.Preferably, LDO voltage stabilizer 17 adopts low quiescent current LDO voltage stabilizer, such as MCP1702T-3302E/CB.By providing to the supply voltage of processor after DCDC reduction voltage circuit again after LDO voltage stabilizer again step-down, further provide the stability of supply voltage.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (8)
1. the replaceable system of electric energy meter communication module, it is characterized in that, comprise power supply substrate module (1), non-isolated communication module (2) and isolation communication module (3), during work, described non-isolated communication module (2) is connected with described power supply substrate module (1) with in isolation communication module (3);
Described power supply substrate module (1) comprises AC transformer (11), the first current rectifying and wave filtering circuit (12), DCDC reduction voltage circuit (13), first carrier signal coupling interface (14), power output interface (15) and the first communication interface (16); The input end of described AC transformer (11) is connected with communication power supply respectively with described first carrier signal coupling interface (14), first output terminal is connected with the input end of described first current rectifying and wave filtering circuit (12), and the second output terminal is connected with described power output interface (15); The output terminal of described first current rectifying and wave filtering circuit (12) is connected with the input end of described DCDC reduction voltage circuit (13); The output terminal of described DCDC reduction voltage circuit (13) is connected with described first communication interface (16);
Described non-isolated communication module (2) comprises the second carrier signal coupling interface (21) and the second communication interface (22), described second carrier signal coupling interface (21) and the suitable and pluggable connection of described first carrier signal coupling interface (14), described second communication interface (22) and the suitable and pluggable connection of described first communication interface (16);
Described isolation communication module (3) comprises power input interface (31) and the 3rd communication interface (32), described power input interface (31) and the suitable and pluggable connection of described power output interface (15), described 3rd communication interface (32) and the suitable and pluggable connection of described first communication interface (16).
2. the replaceable system of electric energy meter communication module according to claim 1, it is characterized in that, the armature winding two ends of described AC transformer (11) are as input end, the wherein one end at armature winding two ends is connected with the live wire of communication power supply, and wherein the other end is connected with the zero line of communication power supply; Secondary winding two ends are as the first output terminal; Auxiliary winding two ends are as the second output terminal.
3. the replaceable system of electric energy meter communication module according to claim 2, is characterized in that, the model of described AC transformer (11) is DB35K-220ZT-K.
4. the replaceable system of electric energy meter communication module according to claim 1, is characterized in that, described isolation communication module (3) also comprises the second current rectifying and wave filtering circuit and linear voltage regulator;
Described power input interface (31) is connected with the input end of described second current rectifying and wave filtering circuit, and the output terminal of described second current rectifying and wave filtering circuit is connected with the input end of described linear voltage regulator.
5. the replaceable system of electric energy meter communication module according to claim 1, is characterized in that, described non-isolated communication module (2) is PLC communication module or RF communication module.
6. the replaceable system of electric energy meter communication module according to claim 1, is characterized in that, described isolation communication module (3) is 485 communication modules or M-BUS communication module.
7. the replaceable system of electric energy meter communication module according to claim 1, is characterized in that, also comprises LDO voltage stabilizer (17), and its input end is connected with the output terminal of described DCDC reduction voltage circuit (13).
8. the replaceable system of electric energy meter communication module according to any one of claim 1-7, is characterized in that, described electric energy meter is guide rail type electrical energy meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520754829.0U CN204925192U (en) | 2015-09-25 | 2015-09-25 | Removable system of electric energy meter communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520754829.0U CN204925192U (en) | 2015-09-25 | 2015-09-25 | Removable system of electric energy meter communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204925192U true CN204925192U (en) | 2015-12-30 |
Family
ID=54974305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520754829.0U Active CN204925192U (en) | 2015-09-25 | 2015-09-25 | Removable system of electric energy meter communication module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204925192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872660A (en) * | 2018-08-09 | 2018-11-23 | 深圳市思达仪表有限公司 | One kind can expansion type electric energy meter |
-
2015
- 2015-09-25 CN CN201520754829.0U patent/CN204925192U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872660A (en) * | 2018-08-09 | 2018-11-23 | 深圳市思达仪表有限公司 | One kind can expansion type electric energy meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105119482A (en) | Single-inductor multi-output boost-buck circuit and control method thereof | |
| CN102710010A (en) | Power supply equipment | |
| CN105515351A (en) | Multi-output power supply | |
| CN202424546U (en) | Extra high voltage DC high voltage generator having high stability | |
| CN102624427B (en) | Synchronous transmission system of energy and information | |
| CN202330520U (en) | High-voltage isolation sampling circuit | |
| CN205319941U (en) | Double - circuit voltage conversion control chip , double - circuit voltage conversion ware and electronic electric energy meter | |
| CN103746653A (en) | DC analog power supply with characteristics of photovoltaic module | |
| CN204925192U (en) | Removable system of electric energy meter communication module | |
| CN205304588U (en) | Multi -path output power supply | |
| CN105811788A (en) | High potential energy supply system used for high voltage power electronic device | |
| CN106130370A (en) | Communicator copied by Switching Power Supply and electrical isolation method, multilist collection | |
| CN201733238U (en) | Auxiliary power system | |
| CN202121830U (en) | Buck-boost constant-current power supply for LED lamps | |
| CN202696465U (en) | Power device driving power supply for multilevel converter and high voltage frequency converter | |
| CN101206490A (en) | Three-phase ac voltage stabilizer | |
| CN210954678U (en) | Wireless serial port communication module | |
| CN204597781U (en) | A kind of switching power circuit | |
| CN203119759U (en) | Boost DC-DC converter | |
| CN204465364U (en) | A kind of high voltage electric and electronic device high potential energy supplying system | |
| CN102346527A (en) | Computer system | |
| CN105406711A (en) | Two-way voltage conversion control chip, two-way voltage converter and electronic watt-hour meter | |
| CN201418034Y (en) | Power supply circuit and TV possessing the power supply circuit | |
| CN212572408U (en) | Wireless street lamp watch-dog power supply circuit and wireless street lamp watch-dog | |
| CN100511933C (en) | Double-output power supplier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Zhengtai Instrument Measurement Industrial Park, No.1 Liangce Road, Beibaixiang Town, Leqing City, Wenzhou City, Zhejiang Province, 325603 Patentee after: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. Address before: 325603 Wenzhou Daqiao Industrial Park, Leqing City, Zhejiang Province, China Patentee before: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. |
|
| CP03 | Change of name, title or address |