Aluminum electrolytic capacitor with strong ripple current resistance and preparation method thereof
An aluminum electrolytic capacitor, ripple current technology, applied in the direction of electrolytic capacitors, capacitors, capacitor terminals, etc., can solve the problem that there are not many electrical connection points, the ripple current resistance capacity of the capacitor cannot meet the requirements, and the capacitor ripple current resistance capacity It has not been greatly improved and other problems, and has achieved the effect of enhancing the ability to withstand ripple current, solving the short-circuit breakdown of capacitors, and strengthening the ability to withstand ripple current.
Active Publication Date: 2021-07-16
HUNAN AIHUA GRP
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- Description
- Claims
- Application Information
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Problems solved by technology
However, there are not many electrical connection points between the aluminum sheet and the anode foil or cathode foil, so that the ripple current resistance of the capacitor has not been greatly improved. In some cases, the ripple current resistance of the capacitor is still low. not able to meet the requirements
Method used
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Embodiment 1
[0029] An aluminum electrolyte capacitor having a strong ripple current capacity, including a housing and a core package, and the core package is sealed by the rubber plug in the housing, and the core package is wound from the anode foil, the electrolytic paper and the cathode foil, anode foil and the cathode. The foil 1 is piercing the anode guide foil strip 2, and the cathode guide bar 2 and the cathode guide bar 2 and the cathode foil 1 are attached to the aluminum sheet 3, the aluminum sheet 3 is attached to the cathode foil 1 and the cathode guide foil. On the strip 2, the aluminum sheet 3 includes an aluminum foil substrate 4 and a sintered aluminum layer 5, and the aluminum foil substrate 4 of the aluminum sheet 3 and the cathode foil 1 is sintered with a sintered aluminum layer of aluminum powder or aluminum alloy powder. The doping elements of aluminum alloy powder include one or more of silicon, iron, copper, manganese, magnesium, zinc, nickel, etc., and the content of e...
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Abstract
An aluminum electrolytic capacitor with strong ripple current resistance, including a casing and a core package, the core package is sealed in the casing, the core package is wound or folded by anode foil, electrolytic paper and cathode foil, and the anode foil and cathode foil The anode foil strip and the cathode foil strip are respectively riveted, and the joint position of the cathode foil strip and the cathode foil is pasted with an aluminum sheet. The aluminum sheet is attached to the cathode foil and the cathode foil strip. The aluminum sheet includes an aluminum foil base and The sintered aluminum layer is a sintered aluminum layer sintered by aluminum powder or aluminum alloy powder on the aluminum foil substrate on the side where the aluminum sheet and the cathode foil are in close contact. The capacitor of the invention not only has less internal short circuit, but also has strong ability to withstand ripple current.
Description
Technical field [0001] The present invention relates to an aluminum electrolyte capacitor, and more particularly to an aluminum electrolytic capacitor having a strong ripple current capacity and a preparation method thereof. Background technique [0002] At present, in the production process of conventional capacitors, the anode foil, electrolytic paper and cathode foil are directly wound into a core package, and the anode foil and the cathode foil are directly riveted anode guide foil strip and the cathode guide bar, and there are many The anode guide needle and the cathode guide needle, the burr in the binding portion of the anode guide foil and the cathode guide foil and the anode foil and the cathode foil is directly in contact with the electrolytic paper, the burr may pierce the electrolytic paper or the burr in the electric field. Discharge to cause short-circuit breakdown of the capacitor. [0003] In order to solve the above problems, patent No. 200410023289.5, a patented...
Claims
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IPC IPC(8): H01G9/004H01G9/008H01G9/14
CPCH01G9/0003H01G9/008H01G9/14
Inventor 艾燕潘振炎张茂贵杨静如肖桥
Owner HUNAN AIHUA GRP