Aluminum electrolytic capacitor and a manufacturing method therefor
First Claim
1. A method of manufacturing an aluminum electrolytic capacitor device, comprising the steps of:
- molding a resin casing including an outer wall surrounding an interior space and having an open end opening to the interior space, integrally with a pair of terminals perforating the outer wall so as to extend from the exterior of the casing into the interior space;
inserting an aluminum electrolytic capacitor element having an anode aluminum foil and a cathode aluminum foil into the interior space;
electrically connecting the anode aluminum foil to one of the pair of terminals and electrically connecting the cathode aluminum foil to the other of the pair of terminals;
providing an electrolyte within the resin casing; and
closing the interior space by covering the open end of the casing with a resin lidsaid step of molding a resin casing including the steps of supporting a first end of each terminal in abuttment with a bearing surface of a core of a stationary template, mounting a movable template over the stationary template with a second end of each terminal bent with respect to the first end clamped between the stationary and movable templates with a perforating portion of each terminal extending through an open space in the shape of the casing to be formed between the stationary template and movable template, and injecting a resin material into the open space so as to form the casing with the terminals fixed therein at their respective perforating portions.
1 Assignment
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Accused Products
Abstract
An aluminum electrolytic capacitor provided in a container including a resin casing integral with a pair of terminals perforating therethrough and a resin lid coupled to the resin casing with an element which includes an anode aluminum foil, a cathode aluminum foil and separators, which are superposed in layers, so that the anode aluminum foil and one of the terminals are connected electrically through a lead, the cathode aluminum foil and the other lead are connected similarly through another lead, and an electrolyte is impregnated into the separators, thereby obtaining the aluminum electrolytic capacitor which is well sealed, is very heat resistant and will not short circuit.
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Citations
3 Claims
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1. A method of manufacturing an aluminum electrolytic capacitor device, comprising the steps of:
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molding a resin casing including an outer wall surrounding an interior space and having an open end opening to the interior space, integrally with a pair of terminals perforating the outer wall so as to extend from the exterior of the casing into the interior space; inserting an aluminum electrolytic capacitor element having an anode aluminum foil and a cathode aluminum foil into the interior space; electrically connecting the anode aluminum foil to one of the pair of terminals and electrically connecting the cathode aluminum foil to the other of the pair of terminals; providing an electrolyte within the resin casing; and closing the interior space by covering the open end of the casing with a resin lid said step of molding a resin casing including the steps of supporting a first end of each terminal in abuttment with a bearing surface of a core of a stationary template, mounting a movable template over the stationary template with a second end of each terminal bent with respect to the first end clamped between the stationary and movable templates with a perforating portion of each terminal extending through an open space in the shape of the casing to be formed between the stationary template and movable template, and injecting a resin material into the open space so as to form the casing with the terminals fixed therein at their respective perforating portions. - View Dependent Claims (2)
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3. A method of manufacturing an aluminum electrolytic capacitor device, comprising the steps of:
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molding a resin casing including an outer wall surrounding an interior space and having an open end opening to the interior space, integrally with a pair of terminals perforating the outer wall so as to extend from the exterior of the casing into the interior space; forming an aluminum electrolytic capacitor element by cutting an anode aluminum foil strip and a cathode aluminum foil strip, each strip having a projection along one side thereof at an end thereof, superposing the strips in layers and winding the superposed strips to form a wound product forming the element with separators between the layers such that the projections on both strips project outwardly from opposite sides of the wound product for being connected to the terminals inside the casing; inserting the aluminum electrolytic capacitor element into the interior space; electrically connecting the projection of the anode aluminum foil strip to one of the pair of terminals and electrically connecting the projection of the cathode aluminum foil strip to the other of the pair of terminals; providing an electrolyte within the resin casing; and closing the interior space by covering the open end of the casing with a resin lid.
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Specification