Welding point structure and welding structure of metal conductor microwave network circuit

Abstract

The invention discloses a welding point structure and welding structure of a metal conductor microwave network circuit. The welding point structure comprises a circuit body and a first solder mask, wherein the circuit body is provided with at least one welding point, the welding point is provided with a welding operation surface, the first welding resistant layer covers the welding operation surface and is encircled to form a welding working region, the welding operation surface is sunken in a tin hidden part, the tin hidden part is arranged in the welding working region, and the welding working region is used for welding and positioning a cable core line. When the cable core line is positioned on the welding working region by tin welding, welding tin can be prevented from excessive flow to cause difficulty in tin accumulation by the first welding resistant layer, and tin accumulation stability and good consistency of accumulated tin morphology are ensured; the cable core line can be enabled to be completely coated by the welding tin by the tin hidden part, good electrical connection quality of the welding point is ensured, the capability of bearing an external pull force of the cable core line in cable wiring is improved, secondary workload is favorably reduced, and the installation efficiency is improved; and moreover, the welding point structure is simple in implementation mode, low in cost and high in working reliability.

Description

technical field [0001] The invention relates to the technical field of mobile communication equipment processing, in particular to a welding point structure and a welding structure of a metal conductor microwave network circuit. Background technique [0002] In mobile communication network coverage, microwave devices are indispensable. The quality of its performance affects the quality of the entire network coverage. Microwave network circuit is the core part of microwave devices, carrying the functions of realizing electrical properties such as phase and power division ratio. Microwave circuits generally include circuits printed on substrates such as PCB boards or circuits composed of metal conductors with three-dimensional structures according to known circuit principles. Due to the lack of dielectric influence of non-metallic media, metal conductor microwave network circuits theoretically help microwave devices to obtain extremely low insertion loss. A good material so...

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Problems solved by technology

[0003] However, due to the inherent problems of the metal circuit machining process, such as burrs, deformation, etc., the most important thing is the design of the solder joints of the metal conductor microwave network circuit, which leads to excessive flow of solder at the solder joints of the circuit, difficulty in stacking tin, and poor cable core wires. Assembly defects such as complete coating, poor electrical connection quality of solder joints, poor stability and shape consistency of stacked tin, often require secondary welding operations, affecting assembly efficiency

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