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Rectifier diode used for automobile generator

A technology of rectifier diodes and automotive generators, applied in circuits, electrical components, electrical solid devices, etc., can solve problems such as generators not working properly, chip cracks, rectifier failures, etc., and achieve the effect of reducing the effective mode

Pending Publication Date: 2017-12-26
JIANGSU YUNYI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to solve the problem that the existing press-fit rectifier diode used in automobile generators is easy to cause chip rupture due to stress on the lead wire, which makes the entire rectifier invalid and the generator cannot work normally, and provides a rectifier diode used in automobile generators

Method used

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  • Rectifier diode used for automobile generator
  • Rectifier diode used for automobile generator
  • Rectifier diode used for automobile generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] refer to image 3 and Figure 4 In the process of making diode lead wire 1, the thin copper plate is stamped and blanked into a strip sheet with a stamping die, and then the strip sheet is bent once with a bending die to form the welding surface at the end, and two consecutive bends form a "Z" The force buffer zone of the shaped structure. Put the chip 4 on the base 5 coated with solder material and coat the upper surface of the chip 4 with solder material, attach the welding surface of the end of the diode lead 1 to the chip through the solder material, put it into a high-temperature furnace and heat it to make the solder The material is melted and the base 5, the chip 4, and the lead wire 1 are welded together, and then the protective ring 3 is installed on the base 5, and the protective ring 3 is filled with the sealant 2 and solidified to make a rectifier diode for an automobile generator.

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Abstract

The invention relates to a rectifier diode used for an automobile generator mainly composed of a pedestal, a chip, a lead, a protection ring and a sealant. The rectifier diode is characterized in that the lead of the diode has a strip-shaped thin sheet structure; two Z-shaped structures are arranged at exposed parts of the lead of the diode; and a stress cushion areas are arranged on the Z-shaped structures of the lead. The rectifier diode has an advantage that the chip is protected against damage well since direction transfer of forces to the chip of the diode is avoided when the lead of the diode receives stress or other external forces.

Description

technical field [0001] The invention relates to a press-fit rectifier diode used for a rectifier of an automobile generator, in particular to a rectifier diode for an automobile generator. Background technique [0002] Existing press-fit rectifier diodes for automotive generators are all straight-lead rectifier diodes, and their structure is mainly composed of a base, a chip, a lead, a protective ring, and a sealant. Usually, the diode is assembled on the rectifier of the automobile generator, and its lead wire is made of a round copper rod through cold heading to form a round nail head for welding with the chip, and the other end of the lead wire is welded with the rectifier bracket. During actual assembly of rectifiers and use of generators, there are often failure modes in which the chips are broken due to stress on the leads of the diodes. [0003] When the automobile generator is running, it will generate high temperature, and the rectifier parts on the automobile gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L23/482H01L23/31
CPCH01L23/31H01L23/482H01L2224/01
Inventor 黄永
Owner JIANGSU YUNYI ELECTRIC