Small-volume high-power rectifier

Abstract

The invention discloses a small-volume high-power rectifier. Rectifier diodes are crimped on a conductive positive electrode plate and a conductive negative electrode plate; a rectifier support is provided with a diode welding plate and a U-shaped stator connection end, the outer side surface of a supporting insulating pad plate is provided with a sealed plastic protection tube, and the rectifiersupport, the conductive positive electrode plate, the supporting insulating pad plate and the conductive negative electrode plate are fixedly connected sequentially from top to bottom; after well fixing, the U-shaped stator connection end is located above the sealed plastic protection tube, and the position of the diode welding plate is corresponding to that of the lead of the rectifier diode; theouter end surface of the conductive positive electrode plate is provided with outer cooling teeth, the inner end surface of the conductive positive electrode plate is provided with inner cooling teeth, and the inner end surface of the conductive negative electrode plate is provided with large-wave cooling teeth. The small-volume high-power rectifier is divided to four layers, heat concentration can be avoided while the volume is small, the heat is evenly dispersed, the conductive positive electrode plate, the supporting insulating pad plate and the conductive negative electrode plate are provided with cooling structures, and heat generated when the rectifier works can be well conducted and dispersed.

Description

technical field [0001] The invention relates to a small-volume high-power rectifier, which belongs to the technical field of automobile generators. Background technique [0002] The car alternator is the main power source of the car. Its function is to supply power to all electrical equipment (except the starter) and charge the battery at the same time when the engine is running normally (above idling speed). With the development of electronic technology and the improvement of people's requirements for comfort, the number of on-board electrical appliances is increasing; at the same time, due to the continuous tightening and improvement of environmental protection requirements, automobile generators are developing in the direction of small size (weight) and high power. Therefore, all countries are constantly introducing new technologies to increase the number of generator stator slots and improve the efficiency of generators with the same volume. Among them, the flat wire st...

AI Technical Summary

Problems solved by technology

When the stator coil adopts a flat wire stator, the temperature of the rear fixed cover is high due to the influence of the temperature of the stator. In addition, the rectifier diode on the rectifier rectifies and generates heat, and the temperature conduction and emission are poor, reaching the junction temperature of the rectifier diode, resulting in the failure of the rectifier. And then affect the life of the generator

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