一种电子式馈线终端通用采集板电路
By designing a dual power supply switching and main power supply circuit, combined with voltage and current acquisition channels and data processing circuits, the problem of unstable power supply in feeder terminal equipment was solved, achieving stable power supply and accurate signal acquisition, and is suitable for various feeder terminal equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HEDWELL ELECTRIC CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional feeder terminal equipment acquisition board circuits suffer from unstable power supply or insufficient power supply, affecting normal use.
By employing a dual power supply switching circuit, a main power supply circuit, a voltage acquisition channel circuit, a current acquisition channel circuit, and a data processing circuit, combined with an AD chip, a general-purpose acquisition board circuit for electronic feeder terminals is designed to ensure power supply stability and signal acquisition accuracy.
It achieves stable power supply, accurate signal acquisition, and efficient data processing, and is versatile and scalable, suitable for various feeder terminal equipment, meeting the needs of different users.
Smart Images
Figure CN224520757U_ABST
Abstract
Claims
1. A universal data acquisition board circuit for an electronic feeder terminal, comprising a data acquisition board circuit body, characterized in that: The acquisition board circuit body includes a dual power supply switching circuit, a main power supply circuit, a voltage acquisition channel circuit, a current acquisition channel circuit, a data processing circuit, and an AD chip. The dual power supply switching circuit includes a relay K1 RTE24730, a first capacitor C1, a first capacitor C2, a first neutral wire N1, a first neutral wire N2, a first live wire L1, a first live wire L2, a first neutral wire N, a first live wire L, a star circuit C2 Y1 STE CD471K, a star circuit C1 Y1 STE CD471K, a relay K2 RTE24730, a second capacitor C1, a second capacitor C2, a second live wire L, a second neutral wire N, a second neutral wire N1, a second live wire L1, and a power transformer P1. DB2ER-5.08-6P, third neutral line N1, third live line L1, neutral line N2, live line L2, third neutral line N and third live line L. The main power supply circuit includes voltage U33, capacitor C125, capacitor C124, live line L7, capacitor C126, capacitor C127, power chip LM1117-3.3, resistor R212, capacitor C127, test point TP27, voltage V3.3, test point TP26, voltage V5C and test point TP25. The voltage acquisition channel circuit includes current-type voltage transformer TR31140C, comparator FB11 CBG3216, resistor R1, resistor R2, comparator FB12. The circuit includes CBG3216, copper-clad aluminum wire BAV199, first diode D1, resistor R11, resistor R17, first diode D4, resistor R30, resistor R25, third capacitor C2 and capacitor C10. The current acquisition channel circuit is equipped with T1 high-precision current transformer CT-100A:3.53V, T2 high-precision current transformer CT-100A:3.53V, T3 high-precision current transformer CT-100A:3.53V, T4 high-precision current transformer CT-100A:3.53V, AC-IA, AC-IB, AC-IC, AC-I0, second diode D1, diode D2, diode D3, second diode D4, resistor R5, resistor R7, resistor R9 and resistor R11.
2. An electronic feeder terminal universal acquisition board circuit according to claim 1, characterized in that: The relay K1 RTE24730 has the following pins connected: pin 3 is connected to the first capacitor C2; pin 1 is connected to the first neutral line N1; pin 8 is connected to the first live line L1; pin 2 is connected to the first neutral line N2; pin 7 is connected to the first live line L2; one end Y of capacitor C2 is connected to the star circuit C2 Y1 STE CD471K; one end of the star circuit C2 Y1 STE CD471K is connected to the first neutral line N; pin 6 of relay K1 RTE24730 is connected to the first capacitor C1; one end of the first capacitor C1 is connected to the star circuit C1 Y1 STE CD471K; one end of the star circuit C1 Y1 STE CD471K is connected to the first live line L; and the relay K2... Pin 1 of RTE24730 is connected to the second capacitor C2. Pin 3 of relay K2 RTE24730 is connected to the second neutral line N. Pin 6 of relay K2 RTE24730 is connected to the second live line L. Pin 8 of relay K2 RTE24730 is connected to the second capacitor C1. One end of the second capacitor C2 is connected to pin 4 of relay K2 RTE24730. One end of the first capacitor C1 is connected to pin 5 of relay K2 RTE24730. Pin 2 of relay K2 RTE24730 is connected to the second neutral line N1. Pin 7 of relay K2 RTE24730 is connected to the second live line L1. Pin 1 of power transformer P1 DB2ER-5.08-6P is connected to the third neutral line N1. Pin 2 of power transformer P1 DB2ER-5.08-6P is connected to the third live line L1. The third pin of DB2ER-5.08-6P is connected to the neutral line N2. The power transformer P1 DB2ER-5.08-6P is connected to the live line L2. The power transformer P1 DB2ER-5.08-6P is connected to the third neutral line N. The power transformer P1 DB2ER-5.08-6P is connected to the third live line L.
3. The electronic feeder terminal general purpose collection board circuit of claim 1, wherein: The IN 3 pin of voltage U33 is connected to one end of capacitor C125, one end of capacitor C124, and one end of live wire L7, respectively. The PAD 4 pin and OUT 2 pin of voltage U33 are both connected to one end of capacitor C126. The GND pin of voltage U33... One pin is connected to one end of the power chip LM1117-3.
3. One end of the power chip LM1117-3.3 is connected to one end of the resistor R212. The other ends of capacitors C124, C125, R212, C216, and C127 are all connected to one end of test point TP27. The other end of capacitor C127 is connected to one end of voltage V3.
3. The other end of voltage V3.3 is connected to one end of test point TP26. Voltage V5C is connected between capacitors C125 and C124. One end of voltage V5C is connected to one end of test point TP25.
4. The electronic feeder terminal general purpose collection board circuit of claim 1, wherein: One pin of the current-type voltage transformer TR31140C is connected to one end of resistor R1. Pin 4 of the current-type voltage transformer TR31140C is connected to one end of comparator FB11 CBG3216. Pin 3 of the current-type voltage transformer TR31140C is connected to comparator FB12 CBG3216. One end of comparator FB11 CBG3216 is connected to one end of the first diode D1 via copper-clad aluminum wire BAV199. One end of comparator FB11 CBG3216 is connected to one end of resistor R11 and one end of resistor R17. One end of comparator FB12 CBG3216 is connected to one end of the first diode D4 via copper-clad aluminum wire BAV199. The comparator FB12... One end of CBG3216 is connected to one end of resistor R30 and one end of resistor R25. A third capacitor C2 is connected between resistor R11 and resistor R17. A capacitor C10 is connected between resistor R30 and resistor R25. One end of the third capacitor C2 and one end of capacitor C10 are both connected to one end of the AD chip.
5. The electronic feeder terminal general purpose collection board circuit of claim 1, wherein: The T1 high-precision current transformer CT-100A: 3.53V has pins 1, 2, and 3 connected to the end facing AC-IA. The T2 high-precision current transformer CT-100A: 3.53V has pins 1, 2, and 3 connected to the end facing AC-IB. The T3 high-precision current transformer CT-100A: 3.53V has pins 1, 2, and 3 connected to the end facing AC-IC. The T4 high-precision current transformer CT-100A: Pins 1, 2, and 3 of the 3.53V transformer are all connected to the end opposite AC-I0. A second diode D1 is connected between pin 6 and pin 4 of the T1 high-precision transformer CT-100A:3.53V. A diode D2 is connected between pin 6 and pin 4 of the T2 high-precision transformer CT-100A:3.53V. The T3 high-precision transformer... A diode D3 is connected between pin 6 of the CT-100A:3.53V high-precision current transformer and pin 4 of the T3 CT-100A:3.53V high-precision current transformer. A second diode D4 is connected between pin 6 of the T4 CT-100A:3.53V high-precision current transformer and pin 4 of the T4 CT-100A:3.53V high-precision current transformer. The output terminal of the T1 CT-100A:3.53V high-precision current transformer is connected to one end of a resistor R5. The T2... The output terminal of the high-precision current transformer CT-100A: 3.53V is connected to one end of resistor R7. The output terminal of the T3 high-precision current transformer CT-100A: 3.53V is connected to one end of resistor R9. The output terminal of the T4 high-precision current transformer CT-100A: 3.53V is connected to one end of resistor R11. The other ends of resistors R5, R7, R9, and R11 are all connected to the end of the AD chip that is directly opposite it.
6. An electronic feeder terminal universal acquisition board circuit according to claim 1, wherein: The data processing circuit includes a CPU chip and a storage chip.