What Are Waterproof Cable Connectors?

Good protection performance is required for waterproof cable connectors to ensure that the equipment can operate normally and reliably.

When water enters or penetrates into the equipment, it will produce the following effects: (1) cause the electronic equipment to malfunction, or cause danger due to changes in the surface insulation resistance characteristics; (2) the water will cause the parts to swell or rupture inside the equipment, causing The equipment is damaged or malfunctioning; (3) High humidity is formed inside the equipment to promote corrosion or mold growth.

The article discusses the problem of unstable equipment performance caused by water ingress in the commonly used waterproof connectors. Verified the feasibility of the process method, and formed the corresponding process specifications for guiding production.

Introduction of common outdoor connector cable assemblies

Waterproof cable connectors cable assembly type

The types of outdoor commonly used connector cable components are radio frequency and low frequency, some have electrical connectors with waterproof function, and some have electrical connectors without waterproof function. For the selection of equipment that does not have a waterproof electrical connector, it is generally an earlier research and development project. The interface connector type is not easy to replace. Therefore, the problem of water seepage can only be solved by process treatment methods.

Water leakage parts of cable assemblies commonly used outdoors

For outdoor cable assemblies, the locations where water may leak are shown at 3 places in Figure 1, where 1 in Figure 1a refers to the end of the heat-shrinkable tube, 2 refers to the connection between the accessory and the connector after the connector, and 3 refers to the connector head and the socket Junction.

For the welding and assembly of the inner conductor and the outer shell of the cable assembly itself, it is easy to meet the requirements according to the operating price of the relevant process documents. The selection and treatment of the external heat shrinkable tube are as follows.

Selection of heat shrinkable tube

Radio frequency cable assembly sample processing

Watertight test and result analysis