CN202903875U - Electronic electric energy meter - Google Patents
Electronic electric energy meter Download PDFInfo
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- CN202903875U CN202903875U CN 201220504536 CN201220504536U CN202903875U CN 202903875 U CN202903875 U CN 202903875U CN 201220504536 CN201220504536 CN 201220504536 CN 201220504536 U CN201220504536 U CN 201220504536U CN 202903875 U CN202903875 U CN 202903875U
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Abstract
The utility model discloses an electronic electric energy meter which comprises an electric energy signal sampling module (1), an electric energy metering module (2), an MCU, a power supply module (3) and a power supply management module (4). The electric energy signal sampling module (1), the electric energy metering module (2) and the MCU are electrically connected in turn. The power supply module (3) is electrically connected with the power supply management module (4). The MCU is electrically connected with an infrared communication module (5) which is used for carrying out data communication, a 485 communication module (6) and an electric energy carrier module (7) respectively. The electronic electric energy meter provided by the utility model has diversified communication modes and can be applied to different environments.
Description
Technical field
The utility model relates to the electric energy meter technical field, specifically is a kind of electronic electric energy meter.
Background technology
Electronic electric energy meter is by to customer power supply voltage and current real-time sampling, adopt special-purpose electric energy meter integrated circuit, sampled voltage and current signal processed and multiply each other converting the pulse output that is directly proportional with electric energy to, show by register or digital indicator.
The electronic electric energy meter of prior art, it comprises the electric power signal sampling module, electric energy metering module, MCU, power module and power management module, the electric power signal sampling module, electric energy metering module and MCU are electrically connected successively, power module is electrically connected with power management module, the electric power signal sampling module is used for sampling user voltage and current signal, electric energy metering module is used for that digital signal is processed and be converted into to the voltage and current signal of sampling and delivers to MCU and calculate, power module provides power supply for electric energy meter, power management module is used for power supply is assigned as each element power supply of electric energy meter, for the power information to electric energy meter gathers, electric energy meter also need arrange communication module, the communication mode that electric energy meter is commonly used is RS485 communication, infrared communication, power line carrier, PLC, need respectively to arrange corresponding RS485 communication module, infrared communication module, the power carrier module, RS485 communications speed is high, good reliability, but need to build a special data line, engineering construction and maintenance cost are high; The infrared communication cost is lower, side signal transmission just, but communication distance is shorter; Power line carrier, PLC is by the electrical network the transmission of data, be difficult for being damaged, but owing to having various electrical equipment on the power network, make that noise is higher, signal attenuation is larger, three kinds of communication modes respectively have relative merits, respectively are applicable to different environment, only has wherein a kind of communication module in the general electric energy meter, make the communication mode of this electronic electric energy meter single, can't be applicable to various environment, to be improved.
The utility model content
Technical problem to be solved in the utility model is to provide communication mode various, applicable to the electronic electric energy meter of different environment.
For solving the problems of the technologies described above, the electronic electric energy meter that the utility model provides, it comprises electric power signal sampling module, electric energy metering module, MCU, power module and power management module, electric power signal sampling module, electric energy metering module and MCU are electrically connected successively, power module is electrically connected with power management module, and described MCU is electrically connected with respectively be used to the infrared communication module of carrying out data communication, 485 communication modules and power carrier module.
After adopting above structure, the utility model compared with prior art has advantages of following:
Make this electronic electric energy meter have simultaneously infrared communication module, 485 communication modules and power carrier module, the communication mode that makes this electronic electric energy meter can be infrared communication, 485 communication or power line carrier, PLCs, communication mode is various, can select suitable communication mode according to the needs of varying environment, enable corresponding communication module and get final product, make this electronic electric energy meter applicable to different environment.
As improvement, described power management module also is electrically connected with the lithium battery group, and the lithium battery group prevents loss of data as standby power supply when the power module power down.
As further improvement, it is the voltage stabilizer of LM78L05 that described power module adopts model, and it exports 5V voltage, satisfies the power demands of each element of electric energy meter.
As further improving, it is the double-current sampling computation chip of BL6501A that described electric power signal sampling module adopts model, it is all sampled to live wire and zero line, therefore when electricity filching behavior occurs, its difference by live wire electric current and neutral line current can judge whether point of contact loss, the generation of electricity theft prevention behavior occur.
As further improving again, described electric energy metering module adopts special-purpose electric energy computation chip RN8209, it can measure active power, reactive power, meritorious energy, quadergy, and two-way independently active power and effective value, voltage effective value, line frequency, zero passage interruption etc. can be provided simultaneously, can realize flexibly anti-electricity-theft scheme.
Description of drawings
Fig. 1 is the structured flowchart of the utility model electronic electric energy meter.
Wherein, 1, electric power signal sampling module; 2, electric energy metering module; 3, power module; 4, power management module; 5, infrared communication module; 6,485 communication modules; 7, power carrier module; 8, lithium battery group.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in more detail.
By the structured flowchart of the utility model electronic electric energy meter shown in Figure 1 as can be known, it comprises electric power signal sampling module 1, electric energy metering module 2, MCU, power module 3 and power management module 4, electric power signal sampling module 1, electric energy metering module 2 and MCU are electrically connected successively, power module 3 is electrically connected with power management module 4, described MCU is electrically connected with respectively be used to the infrared communication module 5 of carrying out data communication, 485 communication modules 6 and power carrier module 7, can be according to the needs of varying environment, select suitable communication mode, enable corresponding communication module, described MCU also is electrically connected with respectively the time clock output module, key-press module and display module.
Described power management module 4 also is electrically connected with lithium battery group 8.
It is the voltage stabilizer of LM78L05 that described power module 3 adopts model.
It is the double-current sampling computation chip of BL6501A that described electric power signal sampling module 1 adopts model.
It is the single-chip microcomputer of μ PD78F0525 that described MCU adopts model.
Described electric energy metering module 2 adopts special-purpose electric energy computation chip RN8209.
Below only use better example with regard to the utility model and made explanation, but can not be interpreted as it is limitations on claims, structure of the present utility model can have other variations, be not limited to said structure, also can be electrically connected RS232 communication module, RS422 communication module, GPRS communication module, gsm communication module etc. such as MCU, power module 3, electric power signal sampling module 1, MCU, electric energy metering module 2 all can be selected other different models, as long as its performance meets the request for utilization of electric energy meter.
In a word, all various variations of doing in the protection domain of independent claims of the present utility model are all in protection domain of the present utility model.
Claims (5)
1. electronic electric energy meter, it comprises electric power signal sampling module (1), electric energy metering module (2), MCU, power module (3) and power management module (4), electric power signal sampling module (1), electric energy metering module (2) and MCU are electrically connected successively, power module (3) is electrically connected with power management module (4), it is characterized in that: described MCU is electrically connected with respectively be used to the infrared communication module of carrying out data communication (5), 485 communication modules (6) and power carrier module (7).
2. electronic electric energy meter according to claim 1, it is characterized in that: described power management module (4) also is electrically connected with lithium battery group (8).
3. electronic electric energy meter according to claim 1 is characterized in that: it is the voltage stabilizer of LM78L05 that described power module (3) adopts model.
4. electronic electric energy meter according to claim 1 is characterized in that: it is the double-current sampling computation chip of BL6501A that described electric power signal sampling module (1) adopts model.
5. electronic electric energy meter according to claim 1 is characterized in that: the special-purpose electric energy computation chip RN8209 of described electric energy metering module (2) employing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504536 CN202903875U (en) | 2012-09-29 | 2012-09-29 | Electronic electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504536 CN202903875U (en) | 2012-09-29 | 2012-09-29 | Electronic electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903875U true CN202903875U (en) | 2013-04-24 |
Family
ID=48124532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220504536 Expired - Lifetime CN202903875U (en) | 2012-09-29 | 2012-09-29 | Electronic electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202903875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941083A (en) * | 2014-04-24 | 2014-07-23 | 张泽虎 | Dual-transformation-ratio access type electric energy meter |
-
2012
- 2012-09-29 CN CN 201220504536 patent/CN202903875U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941083A (en) * | 2014-04-24 | 2014-07-23 | 张泽虎 | Dual-transformation-ratio access type electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315191 Yinzhou Industrial Park, Zhejiang, Ningbo, Yinzhou District, Ningbo Patentee after: NINGBO SANXING MEDICAL & ELECTRIC Co.,Ltd. Address before: 315131, AUX Industrial Park, Mingguang North Road, Jiangshan Town, Ningbo, Yinzhou District, Zhejiang 1166, China Patentee before: NINGBO SANXING ELECTRIC Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |