Lock soldering terminal and method for connecting PCB with cable

Abstract

The invention discloses a lock soldering terminal and method for connecting a PCB with a cable. The method is achieved on the basis of the lock soldering terminal, a cold-pressed terminal, and a combination screw and comprises: inserting the lock soldering terminal into a through hole bonding pad on the PCB and soldering the lock soldering terminals with soldering tin; inserting the cable into the cold-pressed terminal, pressing the cold-pressed terminal, and soldering the cold-pressed terminal with soldering tin; and assembling the cold-pressed terminal equipped with the cable on the lock soldering terminal, locking the cold-pressed terminal and the lock soldering terminal and soldering the cold-pressed terminal and the lock soldering terminal with soldering tin. The scheme provided by the invention may achieve highly-reliable connection between the PCB and the cable.

Description

technical field [0001] The invention relates to a cable connection technology, in particular to a PCB and a cable connection technology. Background technique [0002] In the prior art, there are mainly two methods for connecting the PCB and the cable: [0003] Direct connection: PCB and cable are directly connected by soldering; [0004] Indirect connection: The PCB and the cable are connected indirectly through the terminal post. [0005] However, these two methods have certain defects in the actual application process: [0006] Direct connection: PCBs are susceptible to the effects of heat, stress, tension, and torsion of cables, and risks such as tin cracking and warping of solder joints. [0007] Indirect connection: a clamping connection: suitable for low-voltage and low-current cable connection, there is a risk of oxidative loosening of the clamp spring, and large contact resistance; b locking connection: suitable for high-voltage and high-current connections, there...

AI Technical Summary

Problems solved by technology

[0006] Direct connection: PCB is susceptible to the influence of heat stress, tension and torsion of cables, and risks such as tin cracking and warping of solder joints

[0007] Indirect connection: a clamping connection: suitable for low-voltage and low-current cable connection, there is a risk of oxidative loosening of the clamp spring, and large contact resistance; b locking connection: suitable for high-voltage and high-current connections, there is tension and torque screws loosening high-voltage ignition The risk of contact impedance is large and the power consumption is obvious

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