Shared monopole suspension type rectifier module
A rectifier module and suspension technology, which is applied in the direction of conversion of AC power input to DC power output, cooling/ventilation/heating transformation, output power conversion device, etc. It can solve the problem of broken wires, easy aging of connecting wires, failure of rectifier circuits, etc. problems, to avoid loosening, compact structure, and improve heat dissipation performance
Inactive Publication Date: 2013-11-27
张晓民
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Problems solved by technology
The connecting wire is easy to age when it works in a long-term high-temperature environment, and when it is subjected to vibration, the wire breaks, causing the rectifier circuit to fail
Method used
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[0014] Such as figure 1 , figure 2 Shown: a common unipolar suspension rectifier module, including: base 1, positive heat dissipation conductive plate 5, negative heat dissipation conductive plate 3, rectifier diode 6, AC input conductive terminal 7, positive output conductive terminal 8 and negative output Conductive terminal 9. The rectifier diodes 6 are multiple groups, two in each group, and the two rectifier diodes 6 in each group are symmetrically sandwiched between the positive heat dissipation conducting plate 5 and the negative heat dissipation conducting plate 3; the positive heat dissipation conducting plate There is a cooling fin 5-1 at the upper end of the 5, and the heat generated when the rectifier diode 6 works is dissipated through the cooling fin 5-1. The rectifier diode 6, the AC input conductive terminal 7, the positive output conductive terminal 8 and the negative output conductive terminal 9 are in the form of a single-phase or three-phase bridge recti...
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The invention discloses a shared monopole suspension type rectifier module, and relates to power electronics. A plurality of rectifier diodes are divided into two or three groups, each group comprises two rectifier diodes which are symmetrically clamped between a positive electrode heat dissipation conductive electrode plate and a negative electrode heat dissipation conductive electrode plate, the diodes an alternating current input electric conduction terminal, a positive electrode output electric conduction terminal and a negative electrode output electric conduction terminal are connected in a single-phase or three-level-phase bridge rectifier circuit mode and are welded at a time by utilizing a vacuum welding method to form a double-electrode rectifier bridge circuit assembly. The welded rectifier bridge circuit assembly is placed in a rectangular groove of a base, a heat conduction insulating sheet is placed between the rectifier bridge circuit assembly and the rectangular groove wall, and heat dissipation glue is poured. The heat dissipation glue has good insulating performance and elastic deformation, suspension type movement of the heat dissipating glue is formed between the rectifier bridge circuit assembly and the base, the heat dissipating performance of the circuit assembly is improved, the occurrence that the stress is produced on a welded surface due to the fact that the circuit assembly is shocked by the outside when being installed or used is completely avoided, the reliability of a rectifier module is greatly improved, and the service life of the rectifier module is greatly prolonged.
Description
technical field [0001] The invention relates to a rectifying circuit module used in power electronics. Background technique [0002] The rectifier circuit used in power electronics is an important circuit for AC and DC conversion commonly used in industrial power and DC power equipment. The widely used rectifier circuit at present generally adopts the manufacturing process as follows: welding and press-fitting a plurality of rectifier diodes respectively on the positive and negative heat-dissipating conductive plates, and then connecting them with wires to form a rectifier circuit. The connecting wires are prone to aging when working in a long-term high-temperature environment, and when they are subjected to vibration, the wires will break, causing the rectifier circuit to fail. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a common unipolar suspension rectifier module. The two-electrode rectifier bridge ...
Claims
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Inventor 张晓民
Owner 张晓民