一种抗交变磁场干扰的分流器
By using a parallel ring structure composed of manganese copper plates and copper plates in the shunt to connect the voltage sampling points, the change in magnetic flux is reduced, the influence of induced electromotive force on sampling accuracy is solved, and higher sampling stability and accuracy are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI MIOU ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-26
- Publication Date
- 2026-07-17
AI Technical Summary
In the prior art, the wire connection structure of the AC shunt generates an induced electromotive force in the alternating magnetic field, which affects the sampling accuracy. Furthermore, the instability of the twisted pair and the difficulty in accurately marking the wires increase the difficulty of calibration, leading to increased calibration difficulty and inaccuracy, and resulting in the complexity, inaccuracy, and instability of calibration.
A shunt composed of manganese copper plate and copper plate is used to connect two voltage sampling points through a through-hole pin to the PCB board, forming a ring structure parallel to the magnetic field lines to reduce magnetic flux changes. A rigid material is used to fix the ring area, and sampling accuracy is improved through reasonable calibration.
It effectively reduces induced electromotive force, improves sampling accuracy, stability and precision, simplifies the structure and reduces calibration difficulty.
Smart Images
Figure CN224518824U_ABST
Abstract
Claims
1. A shunt resistant to alternating magnetic field interference, characterized by: The shunt is a long strip oriented left and right. It includes a manganese copper plate arranged vertically along its length. On the left and right sides of the manganese copper plate, there are vertically arranged copper plates. On the upper part of the manganese copper plate, there are two symmetrically spaced protrusions, a first protrusion and a second protrusion, extending vertically upward. The side of the first and second protrusions that are closer together in the left and right direction is called the inner side, and the side that is farther apart in the left and right direction is called the outer side. The first protrusion has a first pin for connecting to the PCB board on one side in the front and back direction. The first pin is offset inward in the left and right direction and extends vertically upward. The second protrusion has a second pin for connecting to the PCB board on the other side in the front and back direction. The second pin is offset inward in the left and right direction and extends vertically upward. The first pin and the second pin are aligned in the front and back direction.