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Electric energy meter, circuit board wiring structure and wiring method

A wiring structure, energy meter technology, applied in the measurement of electrical variables, measuring devices, instruments, etc., can solve the problems of inaccurate measurement of electric energy meters, additional changes in electric energy, etc.

Pending Publication Date: 2021-12-03
DELIXI GROUP INSTRUMENT CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] When using an electric energy meter, the measurement accuracy of the electric energy meter will be affected by the magnetic field in the environment. For example, when there is a magnetic field with a changing direction in the application environment, it will cause the wiring of the circuit board in the electric energy meter to form an induced electromotive force, which will lead to the occurrence of electric energy. The additional change of the energy meter makes the measurement of the energy meter inaccurate

Method used

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  • Electric energy meter, circuit board wiring structure and wiring method
  • Electric energy meter, circuit board wiring structure and wiring method
  • Electric energy meter, circuit board wiring structure and wiring method

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Embodiment Construction

[0035] In order to make those skilled in the art understand the solution of the present application more clearly, the following first describes the application scenarios of the technical solution of the present application.

[0036] see figure 1 , which is a schematic diagram of the circuit principle of an electric energy meter.

[0037] The illustrated electric energy meter includes an interface 10 , a sampling circuit 20 , a filter circuit 30 and an MCU 40 .

[0038] Among them, the interface 10 includes a positive interface (represented by I+ in the figure) and a negative interface (represented by I- in the figure), and the interface is used to connect an external device. and the negative interface is equivalent to two sampling points.

[0039] The sampling circuit 20 includes a plurality of resistors, and the illustrated sampling circuit 20 includes a resistor R1, a resistor R2 and a resistor R3. The resistor R1 forms the first branch, and the resistor R2, the resistor ...

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Abstract

The invention provides an electric energy meter, a circuit board wiring structure and a wiring method, and relates to the technical field of circuit board design. The electric energy meter is used for metering electric energy consumed by load equipment, and comprises an interface, a sampling circuit, a transmission line and a chip package which are arranged on a circuit board. The interface is used for connecting the load equipment and comprises a positive interface and a negative interface; the positive interface and the negative interface are sequentially connected with the sampling circuit and the chip package through the transmission line; the chip package is used for metering electric energy; and the transmission lines are arranged on the circuit board in a crossed mode at least once. According to the scheme provided by the invention, the influence of a changing magnetic field on the electric energy meter is reduced, and the accuracy of the electric energy meter during electric energy metering is improved.

Description

technical field [0001] The present application relates to the technical field of circuit board design, and in particular, to an electric energy meter, a circuit board wiring structure and a wiring method. Background technique [0002] Static watt-hour meter refers to a meter that produces an output proportional to the measured active electrical energy by acting on a solid-state (electronic) device by current and voltage. It is used in the fields of electricity, electrical measurement and measurement. , hereinafter referred to as the electric energy meter. [0003] When the electric energy meter is applied, the measurement accuracy of the electric energy meter will be affected by the magnetic field in the environment. For example, when there is a magnetic field with changing direction in the application environment, an induced electromotive force will be formed in the circuit board traces in the electric energy meter, which will lead to the occurrence of electric energy. The...

Claims

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Application Information

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IPC IPC(8): G01R11/06G01R22/06
CPCG01R11/06G01R22/061
Inventor 汤蓓蕾王央龙王亦挺高亮亮杨从聪
Owner DELIXI GROUP INSTRUMENT CO LTD
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