Solder-free pcb tuning fork terminal and its installation method

Abstract

The invention relates to a solderless PCB-type tuning fork terminal, which comprises a tuning fork structure at the upper part and a pin structure at the lower part, wherein the tuning fork structure is used for being connected with an electromagnetic relay and an automotive fuse; the pin structure is used for being connected with a PCB; the pin structure comprises a pair of plug-in terminals, the section of a first terminal is in an H form and the section of a second terminal is in a cutting edge form; the solderless PCB-type tuning fork terminal is made of a high-elasticity alloy; the first terminal and the second terminal elastically deform after being inserted into round holes in the PCB to form interference fit; the first terminal limits X direction displacement, the second terminal limits Y direction displacement and an X direction is vertical to a Y direction; and the solderless PCB-type tuning fork terminal is used for a vehicle-mounted electric power distribution module. By the solderless PCB-type tuning fork terminal, solderless electric connection of the relay and the fuse in the vehicle-mounted electric power distribution module and the PCB is achieved; and reliable transmission of high current and centralized arrangement of high-power devices are achieved.

Description

technical field [0001] The invention relates to a solder-free PCB tuning fork terminal, in particular to a solder-free PCB tuning fork terminal for a vehicle-mounted electrical power distribution module, and belongs to the technical field of PCB tuning fork terminals. Background technique [0002] When the relay and fuse in the vehicle electrical power distribution module are electrically connected to the PCB, wave soldering is required, and the wave soldering process has the following technical problems: [0003] 1) The welding process has a large thermal impact on the product, which can easily lead to invisible quality risks of the product; [0004] 2) The thermal shock of soldering is large, so the spacing of the solder joints on the PCB needs to meet the distance requirements, and cannot be arranged in a centralized manner, otherwise the distance is too close to cause heat accumulation and thermal shock. [0005] 3) During the welding process, there is a risk of tin bri...

AI Technical Summary

Problems solved by technology

[0003] 1) The welding process has a large thermal impact on the product, which can easily lead to invisible quality risks of the product;

[0004] 2) The thermal shock of welding is large, so the spacing of the solder joints on the PCB needs to meet the distance requirements, and cannot be arranged in a centralized manner, otherwise, if the distance is too close, it will easily cause heat accumulation and cause thermal shock

[0005] 3) During the welding process, there is a risk of tin bridge between the solder joints of the product, resulting in intermittent failure of the product;

[0006] 4) The welding process increases the weight and manufacturing cost of the product

[0007] 5) Due to the processing technology, the PCB-type tuning fork terminal is generally a stamping part, so its connection with the PCB board is generally square. After being inserted into the connection hole of the PCB board, it is in line contact with the connection part, and the connection is completely dependent on solder. Conduction, prone to poor contact, resistance rise, heat generation, and eventually burn the PCB board

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