Pad short-circuit structure, power supply circuit and intelligent electric meter

Abstract

The invention discloses a pad short-circuit structure, a power supply circuit and an intelligent electric meter, the pad short circuit structure comprises at least one common pad used for connecting voltage or grounding; and at least two functional bonding pads which are arranged adjacent to the common bonding pad and are used for being connected with the common bonding pad so as to carry out short circuit; wherein each functional bonding pad is used for connecting each corresponding power supply circuit, the functional bonding pads are in one-to-one correspondence with the power supply circuits, and each power supply circuit is connected to an input circuit or an output circuit in parallel. According to the invention, the short-circuit operation of the plurality of pad short-circuit points can be completed through one operation procedure, the short-circuit operation procedure is relatively simple and convenient, and the production efficiency of products is effectively improved.

Description

technical field [0001] The present application relates to the technical field of circuit shorting, in particular to a pad shorting structure, a power circuit and a smart meter. Background technique [0002] At present, some electrical appliances (such as smart meters) require multiple power sources to exist at the same time. For product production safety and product maintenance needs, before multiple power supplies enter the main circuit, for example, for two power supplies, the power supply circuits of the two power supplies are usually connected in series with a two-pad short-circuit structure (two pad short-circuit structures) structure refers to a pad-shorted structure with two pad-shorted points). For the safety of products in the production process, the short-circuit operation of each pad short-circuit point is generally performed after the PCBA (Printed Circuit Board Assembly, assembled printed circuit board) inspection is completed and enters the post-assembly stati...

AI Technical Summary

Problems solved by technology

Since the power supply circuits of these two power supplies have respectively connected a two-pad short-circuit structure in series, it is necessary to perform short-circuit operations on the two two-pad short-circuit structures respectively, that is, the operation process needs to be carried out in two steps, so this structure, the short-circuit operation process is troublesome, which affects the production efficiency of the product

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