CN211293063U - Expandable wide-range electric energy metering module - Google Patents
Expandable wide-range electric energy metering module Download PDFInfo
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- CN211293063U CN211293063U CN201921995962.XU CN201921995962U CN211293063U CN 211293063 U CN211293063 U CN 211293063U CN 201921995962 U CN201921995962 U CN 201921995962U CN 211293063 U CN211293063 U CN 211293063U
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Abstract
The utility model discloses an expanded wide range electric energy metering module, including the PCB board, install electric energy metering chip and fixed mutual-inductor on the PCB board, be provided with 2 at least fixed mutual-inductor interfaces on the PCB edition, fixed mutual-inductor establishes ties and pegs graft on fixed mutual-inductor interface, the one end of PCB board has been seted up and has been surveyed voltage live wire wiring mouth and surveyed voltage zero line wiring mouth, TTL communication interface has been seted up to the other end of PCB board, the PCB board still is equipped with power supply circuit and TTL communication interface, the pilot lamp is still installed to the PCB board and is used for scintillation in step when communication data transmission, the pilot lamp is connected with electric energy metering chip and power supply circuit electricity, expanded wide range electric energy metering module communication protocol adopts standard Modbus-RTU. The utility model discloses 1 way TTL communication interface, complete isolating circuit, it is small, the interface is simple, and the measuring current scope is big, can conveniently imbed in the various equipment that need measure the power consumption condition.
Description
Technical Field
The utility model relates to an electric power measurement field particularly, relates to an expanded wide range electric energy metering module.
Background
In trades such as energy-conserving transformation, electric power, communication, railway, traffic, environmental protection, petrochemical industry, steel, often use electric energy meter to be used for monitoring alternating current equipment's the electric current and the electric quantity consumption condition, traditional electric energy meter interface is complicated, and is bulky, and measuring range is limited, and it is complicated to carry out the wiring in the measurement process to power equipment, is unfavorable for the operation.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an expanded wide range electric energy metering module to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an expanded wide range electric energy metering module, includes the PCB board, installs electric energy metering chip and fixed mutual-inductor on the PCB board, be provided with 2 at least fixed mutual-inductor interfaces on the PCB board, fixed mutual-inductor is established ties and is pegged graft on the fixed mutual-inductor interface, the one end of PCB board has been seted up and has been surveyed voltage live wire wiring mouth and surveyed voltage zero line wiring mouth, TTL communication interface has been seted up to the other end of PCB board, surveyed voltage live wire wiring mouth and surveyed voltage zero line wiring mouth with electric energy metering chip and fixed mutual-inductor electric connection, the PCB board design have power supply circuit with TTL communication interface and electric energy metering chip electric connection.
Preferably, the PCB is provided with 2 fixed mutual inductor interfaces, the fixed mutual inductor interfaces are respectively connected with fixed mutual inductors with different measuring ranges in an inserting mode, and the fixed mutual inductors are current mutual inductors.
Preferably, the PCB board is further provided with an indicator light for synchronous flicker during communication data transmission, and the indicator light is electrically connected with the electric energy metering chip and the power circuit.
Preferably, the communication protocol of the extensible wide-range electric energy metering module adopts a standard Modbus-RTU, so that the compatibility is good, and the programming is convenient.
Preferably, said electric energy meterThe chip and the fixed mutual inductor are mounted by PCB welding, and the module has a plane size of 54.00 × 25.5mm2。
Preferably, the electric energy metering chip is further connected with a system power failure monitoring circuit.
Preferably, the PCB is further provided with a memory, and the memory is electrically connected with the electric energy metering chip.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses highly integrated measurement, digital communication technique, single-phase alternating current parameter measurement product that can accomplish electric energy measurement, collection and transmission can accurately measure single-phase alternating current voltage, electric current, power factor, frequency, electric quantity electricity and other electrical parameters;
2. the circuit has 1-path TTL level interface, a complete isolation circuit, small volume and simple interface;
3. the measuring range is wide, the customization of the measuring range can be carried out according to the needs of customers, and meanwhile, the measuring range can be conveniently embedded into various devices needing to measure the electricity utilization condition, so that the measuring range has excellent cost performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an expandable wide-range electric energy metering module according to an embodiment of the present invention.
Reference numerals:
1. a PCB board; 2. fixing the mutual inductor; 3. a live wire wiring port of the measured voltage; 4. a zero line wiring port of the measured voltage; 5. a power supply circuit; 6. an indicator light; 7. and a TTL communication interface.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," "sleeved," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following, with reference to the drawings and the detailed description, further description of the present invention is made:
referring to fig. 1, an extensible wide-range electric energy metering module according to an embodiment of the present invention includes a PCB 1, including an electric energy metering chip and a fixed mutual inductor 2 mounted on the PCB 1, the PCB 1 is provided with at least 2 fixed mutual inductor sockets, the fixed mutual inductor 2 is connected in series and plugged on the fixed mutual inductor socket, one end of the PCB 1 is provided with a measured voltage live wire connection 3 and a measured voltage zero line connection port 4, the other end of the PCB 1 is provided with a TTL communication interface 7, the measured voltage live wire connection port 3 and the measured voltage zero line connection port 4 are electrically connected to the electric energy metering chip and the fixed mutual inductor 2, the measured voltage live wire connection port 3 and the measured voltage zero line connection port 4 are used for being connected to an electric energy device to be tested, the PCB 1 is designed with a power circuit 5, the TTL communication interface 7 and the electric energy metering chip, the TTL communication interface 7 realizes remote communication detection without manual operation.
Through the above technical scheme of the utility model, be equipped with 2 fixed mutual-inductor interfaces on the PCB board 1, fixed mutual-inductor 2 of different ranges is pegged graft respectively to fixed mutual-inductor interface, and fixed mutual-inductor 2 in this embodiment is current transformer. In the actual measuring process, the measuring range of the two current transformers can be adjusted according to the requirement when the single-phase circuit is connected, so that a measuring range with a wide range is obtained. Furthermore, the requirement on the measuring range is accurate, accurate measurement can be performed by replacing a transformer, and the measuring range can be further enlarged by cascading more current transformers.
Through the above technical scheme of the utility model, PCB board 1 still installs the pilot lamp and is used for scintillation in step when communication data transmission, pilot lamp 6 and 5 electric connection of electric energy measurement chip and power supply circuit.
Through the above technical scheme of the utility model, expanded wide range electric energy metering module communication protocol adopts standard Modbus-RTU, and is compatible good, convenient programming.
Through the above technical scheme of the utility model, electric energy measurement chip and the 2 mounting means of fixed mutual-inductor are the PCB welding, and module plane dimension is 54.00 x 25.5mm2。
Through the above technical scheme of the utility model, the electric energy measurement chip still is connected with the system and falls electric monitoring circuit and carry out fault detection to power supply circuit 5.
Through the above technical scheme of the utility model, PCB board 1 still installs the memory, and memory and electric energy measurement chip electric connection are used for carrying out the data of storage after measuring electric power parameter and are convenient for observe and transfer.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an expanded wide range electric energy metering module, its characterized in that includes the PCB board, installs electric energy metering chip and fixed mutual inductor on the PCB board, be provided with 2 at least fixed mutual inductor interfaces on the PCB board, fixed mutual inductor is established ties and is pegged graft on the fixed mutual inductor interface, the one end of PCB board has been seted up and has been surveyed voltage live wire wiring mouth and surveyed voltage zero line wiring mouth, TTL communication interface has been seted up to the other end of PCB board, surveyed voltage live wire wiring mouth and surveyed voltage zero line wiring mouth with electric energy metering chip and fixed mutual inductor electric connection, the PCB board design have power supply circuit with TTL communication interface and electric energy metering chip electric connection.
2. The expandable wide-range electric energy metering module according to claim 1, wherein 2 fixed mutual inductor insertion ports are arranged on the PCB, the fixed mutual inductor insertion ports are respectively inserted with fixed mutual inductors with different ranges, and the fixed mutual inductors are current mutual inductors.
3. The expandable wide-range electric energy metering module according to claim 1, wherein the PCB board is further provided with an indicator light for synchronous flashing during communication data transmission, and the indicator light is electrically connected with the electric energy metering chip and the power circuit.
4. The expandable wide-range electric energy metering module of claim 1, wherein the communication protocol of the expandable wide-range electric energy metering module adopts a standard Modbus-RTU, and the expandable wide-range electric energy metering module is good in compatibility and convenient to program.
5. The scalable wide-range electric energy metering module of claim 1, wherein the electric energy metering chip and the fixed mutual inductor are mounted in a way of PCB weldingThe module plane size is 54.00 x 25.5mm2。
6. The expandable wide-range electric energy metering module according to claim 1, 3 or 5, characterized in that the electric energy metering chip is further connected with a system power failure monitoring circuit.
7. The expandable wide-range electric energy metering module of claim 1, wherein the PCB is further provided with a memory, and the memory is electrically connected with the electric energy metering chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921995962.XU CN211293063U (en) | 2019-11-19 | 2019-11-19 | Expandable wide-range electric energy metering module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921995962.XU CN211293063U (en) | 2019-11-19 | 2019-11-19 | Expandable wide-range electric energy metering module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211293063U true CN211293063U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921995962.XU Active CN211293063U (en) | 2019-11-19 | 2019-11-19 | Expandable wide-range electric energy metering module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211293063U (en) |
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2019
- 2019-11-19 CN CN201921995962.XU patent/CN211293063U/en active Active
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