End connecting method for extremely fine coaxial cables

Abstract

The present invention provides an end connecting method capable of connecting ultrathin coaxial cable of each end without locating multiple ultrathin coaxial cables arranged at equal interval of central contact of connector, comprising that: configuring ultrathin coaxial cable to the guiding slot disposed concavely at equal interval along arrangement direction on the insulation housing, retaining the exterior conductor of multiple ultrathin coaxial cables arranged along arrangement direction and forward and backward direction and the solder plate between an earth plate fixed on the insulation housing and a guiding slot, fusing the solder plate and soft soldering to the earth plate.The exterior conductor of the ultrathin coaxial cable is coupled electrically to the earth plate and fixed to the insulation housing under arrangement condition, which is capable of connecting electrically the exposed front central conductor of exterior conductor to the central contact of connector.

Description

technical field [0001] The present invention relates to a plurality of ultra-fine coaxial cables arranged on a connector at narrow intervals, and the central conductor stripped at the end of each ultra-fine coaxial cable is electrically connected to the central contact of the connector. How to connect the end of the shaft cable. Background technique [0002] With the miniaturization and multi-functionalization of electronic equipment, the thinning of coaxial cables has been promoted. For example, the use of ultra-thin coaxial cables with an outer diameter of the center conductor of about 0.3 mm, and by high-density mounting on printed circuit boards , Miniaturization of electronic components, etc., the ultra-thin coaxial cable is connected to the connector at a narrow pitch, so that the connector that connects multiple coaxial cables is also miniaturized. [0003] A micro coaxial cable is coaxially formed with a central conductor, an intermediate dielectric, an outer conduc...

AI Technical Summary

Problems solved by technology

[0011] Furthermore, in the cutting operation of the central conductor 101, it is difficult to cut the flexible central conductor 101 with the same length so as to prevent protrusion from the connector 110, and there is contact between the central conductors 101 with inconsistent cutting, or contact with the shield cover (not shown) covering the periphery of the connector 110 to cause a short circuit

[0012] The problem caused by the diameter error of the above-mentioned center conductor 101 is that, if the outer diameter of the center conductor 101 is relatively large, although the center conductor 101 can be connected to the center conductor 101 by crimping or pressure welding Solve the problem by positioning the center contacts 111 with slits or crimp grooves for pressure welding, but at the connection parts of the center contacts 111 arranged at a narrow pitch to the central conductor 101, the formation of slits for pressure welding cannot be ensured. Or the size of the crimping groove becomes an unsolvable problem when connecting the ends of a plurality of ultra-thin coaxial cables 100 to a miniaturized connector.

[0013] In addition, in the ultra-fine coaxial cable 100 in which the central conductor 101 itself has a small diameter, if the central conductor 101 is connected to the central contact 111 by crimping or pressure welding, the central conductor 101 may come off from the central contact 111 or a gap may be generated. However, the problem of being unable to electrically connect with the central contact 111 with a predetermined contact pressure becomes a connection method that is not suitable for the terminal connection of the ultra-thin coaxial cable 100.

Therefore, each center conductor 101 needs to be connected to the center contact 111 by soldering or welding. Combining wiring is an extremely difficult operation, and it becomes an operation with poor operability

Images