Three-phase super-power rectification bridge group
An ultra-high power, rectifier bridge technology, applied in the field of electronic components, can solve the problems of high product damage rate, large space occupation, and high material consumption, and achieve the effects of low cost, excellent performance and low repair rate.
Active Publication Date: 2014-04-16
黄山市阊华电子有限责任公司
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Problems solved by technology
At present, the maximum power of the domestic rectifier bridge group is about 200A, the passing current is small, and the heat dissipation performance is poor. It is mainly used for small-power generator sets, chargers, electric welding machines and other electronic equipment, and cannot be used for high-power equipment.
High-power equipment is rectified from alternating current to direct current, which is mainly replaced by high-power rectifier tubes (about 500A), and several are used in parallel, but it is inconvenient to install when using, takes up a lot of space, consumes a lot of materials, high cost, and the product damage rate High, need frequent rework
Method used
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[0012] see Figure 1 to Figure 2 As shown, the three-phase ultra-high power rectifier bridge assembly of the present invention includes a formed aluminum plate 1 , a rectifier element, an insulating bolt 3 and a ceramic sleeve 4 .
[0013] The rectifying element is composed of a copper base and a silicon chip fixed on the copper base.
[0014] There are 7 shaped aluminum plates 1 in total, and the 7 shaped aluminum plates 1 are arranged in parallel, which are respectively defined as the first to seventh shaped aluminum plates 1 according to the order of arrangement, and each shaped aluminum plate 1 is provided with 8 perforations for insulating bolts 3 to pass through (not shown in the figure), the 8 perforations are divided into three groups, wherein the three perforations of the first group are arranged side by side along the long side of the formed aluminum plate 1, and the three perforations of the second group are arranged along the long side of the formed aluminum plate ...
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Abstract
The invention relates to a three-phase super-power rectification bridge group which comprises seven molding aluminum plates, a rectifying element, insulating bolts and ceramic sleeves, wherein the rectifying element is composed of a copper base and a silicon chip fixed on the copper base; the seven molding aluminum plates are arranged in a parallel manner; after the insulating bolts successively pass through a perforation of each molding aluminum plate, two ends of the insulating bolts are locked through nuts, the ceramic sleeves are sleeved on the insulating bolts, and each ceramic sleeve is positioned between the two adjacent molding aluminum plates; and the three-phase super-power rectification bridge group is also provided with a connecting strip connected with three-phase alternating current, and an output plate used as a rectified output end. The three-phase super-power rectification bridge group provided by the invention has the advantages that a product has the characteristics of compact structure, reliable performance, low surface temperature, low back-repairing rate, long service life and the like, and the three-phase super-power rectification bridge group is safe and reliable, convenience to use and the like, and the cost is relatively low.
Description
technical field [0001] The invention relates to an electronic component, in particular to a three-phase super-power rectifier bridge group. Background technique [0002] With the rapid development of power electronics technology, high-power bridge rectifiers are widely used in high-power generator sets, high-power electroplating equipment, welding equipment, auto maintenance equipment, chargers, etc., rectifying alternating current into direct current, with a large market application space, It is widely used and the demand is increasing day by day. At present, the maximum power of the domestic rectifier bridge group is about 200A, the passing current is small, and the heat dissipation performance is poor. It is mainly used for electronic equipment such as low-power generator sets, chargers, and electric welding machines, and cannot be used for high-power equipment. High-power equipment is rectified from alternating current to direct current, which is mainly replaced by high...
Claims
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IPC IPC(8): H02M7/02H01L23/31
Inventor 凌定华
Owner 黄山市阊华电子有限责任公司