High-voltage large-capacity mixed tantalum capacitor bank integrated module
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A technology of tantalum capacitors and tantalum electrolytic capacitors, which is applied in the direction of capacitors, electrolytic capacitors, capacitor parts, etc., can solve the problems of difficult growth of capacitor capacity and difficulty in meeting high energy density, and achieve low leakage current and good impedance frequency characteristics
Inactive Publication Date: 2014-02-05
GUIZHOU AVIC JODO TECH
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However, the charge storage area of traditional electrolytic capacitors is a planar structure, and the electrodes are separated by a medium. These mediums are mostly made of plastic, paper or thin film ceramics. Density requirements
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[0022] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0023] figure 1 is the internal structure diagram of the combined tantalum capacitor used in one embodiment of the present invention;
[0024] 1 Sintered tantalum block 2 PTFE shockproof gasket 3 Tantalum anode lead head 4 Tantalum tube
[0025] 5 Glass insulator and metal cover 6 Laser welding port 7 Anode lead with solder joint
[0026] 8 nickel lead wire (positive electrode) 9 gel sulfuric acid between tantalum block and shell 10 tantalum pentoxide
[0027] 11 Bracket PTFE shockproof gasket 12 Copper lead (negative pole) welded to the shell
[0028] 13 Ruthenium dioxide deposited on the inner wall of the shell 14 Full metal tantalum shell
[0029] According to the existing production process of the tantalum electrolytic capacitor CAK35, the invention improves the design of the 100V470μF tantalum electrolytic capacitor. First of all, high-puri...
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Abstract
The invention provides a high-voltage large-capacity mixed tantalum capacitor bank integrated module. The module comprises 32 100V470-microfarad axial mixed tantalum electrolytic capacitors, 4 high-precision voltage dividing resistors, a high-performance ceramic bypass capacitor, a positive electrode lead circuit board and a negative electrode lead circuit board, and high-temperature insulation resin is overall adopted to be poured and sealed into a high-strength light aluminum magnesium alloy shell, the 32 tantalum electrolytic capacitors are divided into four groups, 8 tantalum electrolytic capacitors in each group are connected in parallel, and four groups are connected in series. The high-precision voltage dividing resistors are connected in parallel beside the capacitors connected in series in all the groups respectively. The bypass capacitor of the whole module is a 104K/630V high-voltage ceramic capacitor. The module has extremely low leakage currents (smaller than 300microA), the impedance frequency character is good, an ESR value can be kept stable in the range of 10KHZ-1000KHZ, using temperature ranges from -55DEG C to 125DEG C, and the requirements of a modern aviation and spaceflight electronic system for high frequency, miniaturization and high reliability can be met.
Description
Technical field: [0001] The invention discloses a high-voltage and large-capacity hybrid tantalum capacitor bank module. Background technique: [0002] Generally speaking, the capacitor bank pulse discharge device is very simple in structure, but it has a wide range of uses. At present, it is mainly used in controlled thermonuclear fusion, plasma pinch, plasma focus, pulsed strong magnetic field, electromagnetic propulsion, electric explosion conductor, electromagnetic forming, electromagnetic shock simulation, liquid electric explosion, aircraft deicing, etc. [0003] In recent years, with the multipolar development of the world's military structure, long-range and ultra-long-range precision guidance and prevention and control are required in aerospace and defense systems, so the energy density that its power supply system can provide is getting higher and higher. requirements. For example, the U.S. Department of Energy, Lockheed Martin, NASA, Raytheon, Rockwell, etc., th...
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