Solder ring for microwave component radio frequency connector and welding method thereof

Abstract

The invention discloses a solder ring for a microwave component radio frequency connector and a welding method thereof, belongs to the technical field of solder rings. The solder ring for the microwave component radio frequency connector is provided. The invention provides the solder ring for the microwave component radio frequency connector and the welding method thereof. According to the solder ring for the microwave component radio frequency connector and the welding method thereof, a spray head is above a guide ring, a motor is used for driving the guide ring to rotate, the spray head does circular motion, the spray head rotates around the guide ring for angle adjustment, and the defects that in the microwave component assembling process, the sealing effect of a through-wall radio frequency connector is poor, and the conductive glue bonding and manual soldering paste coating are not uniform are overcome. The test passing rate, the finished product rate and the working efficiency of products are improved. The working efficiency is greatly improved, the welding uniformity and the penetration rate of solder adopting the design are also greatly improved from the welding effect, and the sealing test can also meet the product requirements.

Description

technical field [0001] The invention relates to the technical field of solder rings, in particular to a solder ring used for a radio frequency connector of a microwave component and a welding method thereof. Background technique [0002] Glass insulators are often used in microwave devices, and the electrical properties of glass insulators are often affected by the closeness and concentricity of the welding holes between the glass insulator and the microwave device. Therefore, the tightness and concentricity of the glass insulator assembly are very critical. The poor tightness and concentricity have a great impact on the overall electrical performance of the product, and it is easy to damage the connector. It is impossible to assemble qualified products under higher requirements. product. [0003] At present, the welding of the glass insulator and the welding hole of the microwave device generally adopts the overall welding method. During the installation process, the solde...

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Problems solved by technology

Therefore, the tightness and concentricity of glass insulator assembly are very critical. If the tightness and concentricity are not good, it will have a great impact on the overall electrical performance of the product, and it is easy to damage the connector. It is impossible to assemble a qualified one under high requirements. product

[0003] At present, the welding of the glass insulator and the welding hole of the microwave device generally adopts the overall welding method. During the installation process, the solder paste is first applied to the surface of the outer conductor of the glass insulator or the side of the welding hole cavity of the microwave device, and then the glass insulator is inserted in the The welding holes of microwave devices are placed on the heating plate as a whole for heating and welding. The main problems are as follows: First, when applying solder paste, the solder paste is often not evenly applied to the corresponding position. After inserting the glass insulator, it is easy to cause differences. The central axis is offset to a certain extent, and it is easy to cause the amount of solder to overflow or the solder paste to be too small to produce cold welding, so that its closeness and concentricity do not meet the installation specifications and installation requirements; the second is the high-temperature heating welding In some cases, since the glass insulator is not clamped and fixed, the glass insulator is prone to shift after the solder paste is melted, and the concentricity of the product is uneven

[0004] With the increasingly higher requirements for the use and miniaturization of microwave component products, there are new requirements for the sealing of microwave component products, and the installation requirements for RF connectors used by microwave components for signal transmission have also changed. The wall-type SMA connector now adopts the butt SMP to save assembly space. The assembly of the connector used to be bonded with conductive adhesive, but it could not meet the airtight requirements of some customers. Then the process design was improved and sintered Welded RF connectors in the first way, and started to use solder paste sintering, but manual application of solder paste will lead to uneven solder melting, voids and pinholes, which will lead to failure of the airtight test

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