Heat dissipation structure of rectifier
A heat dissipation structure and rectifier technology, applied in the field of rectifiers, can solve the problem of reducing the service life of diodes, and achieve the effects of prolonging the service life, large area of the heat dissipation plate, and increasing heat dissipation.
Inactive Publication Date: 2018-07-10
江苏奥尼克电气股份有限公司
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Problems solved by technology
At this stage, due to the addition of many functions inside the car, the power supply demand is gradually increasing. Therefore, the output of the generator is continuously improved to meet the power supply demand. However, the greater the output, the higher the heat generated. If the temperature is too high, the rectifier The diode inside is easy to reduce the service life due to high temperature
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[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0014] Such as figure 1 and figure 2 As shown, a heat dissipation structure of a rectifier includes a positive heat dissipation plate 1, a negative heat dissipation plate 4, a circuit board 2, a positive diode 3, and a negative diode 5; the positive heat dissipation plate 1, the negative heat dissipation plate 4, and the circuit board 2 are all annular, The circuit board 2 is located between the positive heat dissipation plate 1 and the negative heat dissipa...
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The invention discloses a heat dissipation structure of a rectifier, belonging to the technical field of generator rectifiers. The heat dissipation structure comprises a positive heat-dissipating plate, a negative heat-dissipating plate, a circuit board, positive diodes and negative diodes, wherein the positive heat-dissipating plate, the negative heat-dissipating plate and the circuit board are separately in a circular ring shape; the circuit board is positioned between the positive heat-dissipating plate and the negative heat-dissipating plate, and gaps are respectively reserved between thecircuit board and the positive heat-dissipating plate as well as between the circuit board and the negative heat-dissipating plate; the positive diodes are press-arranged on the positive heat-dissipating plate, and the negative diodes are press-arranged on the negative heat-dissipating plate; the positive diodes and the negative diodes are connected with the circuit board. The positive diodes andthe negative diodes are evenly dispersed; a whole heat-dissipating plate is large in area, and a central sleeve and a cooling fan are cooperatively used, so that the heat dissipation performance of the rectifier is improved, and the service lives of the diodes are prolonged.
Description
technical field [0001] The invention relates to a rectifier of a generator, in particular to a rectifier cooling structure. Background technique [0002] The function of the rectifier is to rectify the three-phase alternating current generated by the stator coil into a direct current output by full-wave diodes. The rectifier includes a circuit board, a plurality of rectifier diodes and a heat sink. The rectifier diodes are welded to the positive and negative heat sinks respectively, and are fixed on the circuit board by press-fitting. The function of the heat sink is to dissipate the heat generated by the rectifier. . Generally, the positive and negative cooling plates are limited by space constraints, and most of them are designed in a symmetrical manner. At this stage, due to the addition of many functions inside the car, the power supply demand is gradually increasing. Therefore, the output of the generator is continuously improved to meet the power supply demand. Howev...
Claims
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IPC IPC(8): H01L23/367H01L23/467H01L25/07
CPCH01L23/367H01L23/467H01L25/071
Inventor 张晓民
Owner 江苏奥尼克电气股份有限公司