Novel rectifier bridge for soybean milk maker

Abstract

The invention relates to a novel rectifier bridge for a soybean milk maker. The novel rectifier bridge comprises an insulated encapsulation shell, four terminal pins, and four unidirectional conductive chips. One end of each terminal pin extends into the insulated encapsulation shell and is connected with a copper substrate. The copper substrates and the unidirectional conductive chips are encapsulated in the insulated encapsulation shell. The copper substrates are separated from one another. The four unidirectional conductive chips are glass passivated diode chips. Each glass passivated diode chip is provided with electrodes at the upper end and the lower end. The area of the lower end electrode is larger that that of the upper end electrode. The glass passivated diode chips are connected with the copper substrates through the lower end faces of the glass passivated diode chips. The novel rectifier bridge for the soybean milk maker has the advantages that structure is simple and reasonable, size is small, heat radiation is fine, temperature is even, operation is stable and reliable, surge current through capacity is high (surge current of 10ARBU product can reach 275A), impact resistance capacity is high (breakdown voltage can reach 1200V) and the like.

Description

technical field [0001] The invention relates to a rectifier bridge, which is a novel rectifier bridge for soymilk makers mainly used in soymilk makers (or other food cooking machines driven by DC motors), with the function of converting AC into DC. Background technique [0002] At present, the rectifier bridge is widely used in electronic and electrical products because of its reliable operation and convenient installation. Existing rectifier bridges cover currents from 0.5A to 1000A and voltages from 50V to 1600V, including GBJ, GBU, GBL, GBPC, KBJ, KBU, KBL, KBP, DIP and other series. [0003] With the advancement of product technology, considering energy saving, environmental protection, and controllability, soybean milk machines gradually adopt frequency conversion technology to replace fixed frequency technology, so that the motor changes from AC motor to DC motor, so as to reduce energy consumption, realize effective control, and improve energy saving. Level of techno...

AI Technical Summary

Problems solved by technology

[0004] Problem 1. The internal space of the soymilk machine is limited, and a rectifier bridge with a large size cannot be placed. For the same reason, the rectifier bridge cannot be cooled by cooling fins or forced air cooling measures. The heat dissipation performance of ordinary rectifier bridges cannot meet the requirements.

[0005] The second problem is that the DC motor of the soybean milk machine has a large starting current and severe impact, and the impact resistance of the ordinary rectifier bridge cannot meet the requirements

[0006] Question 3: When the soymilk machine is working abnormally, the locked-rotor current is large, and the instantaneous anti-surge passing ability of the ordinary rectifier bridge cannot meet the requirements

[0007] Question 4: In order to realize one or several of the above requirements, a rectifier bridge with a large appearance is required, and the internal space of the soybean milk machine cannot meet the installation requirements

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