321results about "Capacitor terminals" patented technology

An apparatus is disclosed which includes an electrolytic capacitive element with multiple capacitor sections.

A capacitor that is capable of exhibiting good electrical properties under a wide variety of different conditions is provided. The capacitor contains a capacitor element that includes a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric and includes a conductive polymer. The capacitor also contains multiple exposed anode lead portions that are electrically connected to respective anode terminations and a planar cathode termination that is electrically connected to the solid electrolyte.

A wound capacitor package structure includes a wound assembly, a conductive assembly, a package assembly, a bottom seat plate and a pin protection assembly. The conductive assembly includes a first and a second conductive pin. The package assembly is configured for enclosing the wound assembly. The bottom seat plate is disposed on a bottom side of the package assembly. The pin protection assembly includes a first pin protection layer configured to partially cover the first conductive pin, and a second pin protection layer configured to partially cover the second conductive pin. The first conductive pin includes a first exposed portion exposed outside the package assembly, and the second conductive pin includes a second exposed portion exposed outside the package assembly. The first and the second pin protection layer are disposed on the first and the second exposed portion for protecting the first and the second conductive pin, respectively.

The invention discloses an aluminum electrolytic capacitor special for an electric tool and a preparation method of the aluminum electrolytic capacitor. The method comprises the following steps that a positive electrode guide pin and a negative electrode guide pin are riveted to an anode foil and a cathode foil respectively; placing electrolytic paper between the anode foil and the cathode foil, and winding to form a core package; carrying out baking drying and electrolyte impregnation treatment on the wound core package, and then carrying out packaging and aging; the electrolyte consists of the following components in percentage by mass: 45-60% of a solvent, 25-40% of a solute, 5-15% of an additive and 5-10% of a stabilizer, the solute contains 2-butyl suberic acid; the stabilizer contains alkyl phosphate. According to the preparation method of the aluminum electrolytic capacitor special for the electric tool, the electrolyte formula is optimized, oxidation hydrolysis of the electrode foil and the oxidation film is effectively inhibited, the ion migration resistance is reduced, the polarization phenomenon is reduced, the loss value and the equivalent series resistance (ESR) of the obtained capacitor are remarkably reduced, the ripple resistance is improved, and the aluminum electrolytic capacitor is suitable for the electric tool.

A tantalum capacitor includes a tantalum body including a tantalum element including tantalum powder, a conductive polymer layer disposed on the tantalum element, and a tantalum wire penetrating through at least a portion of each of the tantalum element and the conductive polymer layer in a first direction, a molded portion including a fifth surface and a sixth surface facing in the first direction, a third surface and a fourth surface facing in a second direction, and a first surface and a second surface facing in a third direction and surrounding the tantalum body, a first coating layer disposed in at least a portion of an interface between the tantalum body and the molded portion, and a second coating layer disposed on the first coating layer, wherein the second coating layer is thicker than the first coating layer.

A broadband filter plate type tantalum capacitor comprises a lead frame, a tantalum core and a ceramic capacitor, a positive electrode and a negative electrode of the tantalum core are connected with a positive electrode frame and a negative electrode frame of the lead frame respectively, the positive electrode frame and the negative electrode frame are connected through the ceramic capacitor, and the tantalum core and the ceramic capacitor are of a parallel structure. According to the utility model, through the design of the lead frame and the parallel combination mode of the ceramic capacitor and the tantalum capacitor, the volume efficiency maximization of the tantalum capacitor and the volume maximization of the tantalum core are realized, the reliability and the stability of the tantalum capacitor are improved, the use is simple, and the effect is obvious.

The invention provides an external assembled pin of an electrolytic capacitor, and relates to the technical field of electrical elements. A first groove and two sets of second grooves are formed in the base, first bases and second bases are installed in the two sets of second grooves and connected through bolts, rotating cylinders are installed between the first bases and the second bases through bearings, and bevel gears are fixed to the lower ends of the rotating cylinders. A processing ring is clamped among the three groups of clamping blocks, when a pin of a capacitor body is inserted into the processing ring, a first adjusting rod is rotated to enable the processing ring to rotate, the pin of the capacitor body is polished through the processing ring, an oxide layer on the pin of the capacitor body can be polished off, and the capacitor body is in good contact with a needle cylinder; after the pin of the capacitor body is inserted into the needle cylinder, the locking rod is inserted into the top cylinder, the first control rod is pulled upwards to enable the upper end of the top cylinder to clamp the locking rod, and the pin of the capacitor body is prevented from being separated from the needle cylinder.

A tantalum capacitor includes a tantalum body including a tantalum element including tantalum powder, and a tantalum wire passing through at least a portion of the tantalum element in a first direction, a molded portion having fifth and sixth surfaces opposing each other in the first direction, third and fourth surfaces opposing each other in a second direction, first and second surfaces opposing each other in a third direction, the molded portion formed to surround the tantalum body, an anode lead frame connected to the tantalum wire, a cathode lead frame spaced apart from the anode lead frame, the cathode lead frame connected to the tantalum body, and a frame terminal disposed on the anode lead frame and the cathode lead frame to be spaced apart from the second surface of the molded portion.

An electrolytic capacitor includes a capacitor element that includes an anode part and a cathode part, an exterior body that seals the capacitor element, a first external electrode that is electrically connected to the anode part, and a second external electrode that is electrically connected to the cathode part. At least one of an end face of the anode part or an end face of the cathode part is exposed from the exterior body to be electrically connected to a corresponding one of the first external electrode or the second external electrode. The end face exposed from the exterior body is covered with an electroless Ni plating layer, and the electroless Ni plating layer is covered with an electroless Ag plating layer. The electroless Ag plating layer is covered with the corresponding one of the first external electrode or the second external electrode.

In order to solve the problems of insufficient bonding force and high resistivity of the existing conductive silver paste, the invention provides the conductive silver paste, which comprises silver powder, a first solvent and acrylic acid modified epoxy resin, and the mass content of free acryloyloxy in the acrylic acid modified epoxy resin is 1-10%. Meanwhile, the invention also discloses a preparation method of the conductive silver paste and a chip polymer laminated aluminum capacitor comprising the conductive silver paste. The conductive silver paste provided by the invention has relatively low resistivity, relatively high bonding strength and high temperature resistance.

The invention relates to the technical field of power electronic components, and discloses a fast charge-discharge aluminum electrolytic capacitor and a preparation method thereof. The fast charge and discharge aluminum electrolytic capacitor comprises a high-purity aluminum foil subjected to aluminum chloride-hydrochloric acid etching and oxalic acid-tartaric acid oxidation treatment, a porous electrolyte layer with the thickness of 0.015-0.020 mm, a composite organic-inorganic electrolyte and an aluminum shell packaging structure, the preparation method comprises the steps of aluminum foil processing, electrolyte cutting, winding and assembling, vacuum infusion under-0.09 to-0.095 MPa, staged aging charging under the condition of 70-90 DEG C, and finally packaging and forming. According to the method, a compact oxidation film is formed through anodic oxidation, the proportion of gamma-butyrolactone in the electrolyte is optimized, the staged voltage aging and vacuum infusion process is implemented, and the fast charging performance, high-temperature stability and overall reliability of the aluminum electrolytic capacitor are synergistically improved from the material level and the process level.

An electrolytic capacitor includes a capacitor element including an anode part and a cathode part, an exterior body sealing the capacitor element, a first external electrode electrically connected to the anode part and exposed from the exterior body, a second external electrode electrically connected to the cathode part and exposed from the exterior body, and a first base electrode connecting the anode part and the first external electrode. The first base electrode contains a first sintered metal, and the first sintered metal is in contact with an end surface of the anode part not covered with the exterior body and is in contact with the first external electrode. A relation 0.5≤W1 / Tpc≤100 is satisfied, where Wp represents a width of the end surface of the anode part, and Tpc represents a thickness of the first sintered metal at a center of the width Wp.

In order to solve the problem that the existing conductive silver paste is difficult to meet the requirements of low impedance and low volume, the invention provides the conductive silver paste which comprises silver powder, a first solvent and acrylic acid modified fluorine-containing epoxy resin, and the acrylic acid modified fluorine-containing epoxy resin contains an epoxy group, an acryloyloxypropyl group and a fluoroalkyl structure. Meanwhile, the invention further discloses a preparation method of the conductive silver paste and a chip type polymer laminated aluminum capacitor adopting the conductive silver paste. The conductive silver paste provided by the invention has relatively low impedance, and when the conductive silver paste is applied to the chip-type polymer laminated aluminum capacitor, the connection tightness between different capacitor single chips can be improved, the volume and equivalent series resistance of the capacitor can be reduced, and the electrochemical performance of the chip-type polymer laminated aluminum capacitor can be improved.

A capacitor element that includes: a capacitor unit including an anode plate including a core portion and a porous portion on at least one main surface of the core portion, a dielectric layer on a surface of the porous portion, and a cathode layer that includes a solid electrolyte layer on a surface of the dielectric layer, and the solid electrolyte layer contains a conductive polymer; and a sealing layer covering the capacitor unit, wherein the sealing layer contains a first insulating resin and first flattened inorganic fillers, and the first flattened inorganic fillers are oriented in a surface direction orthogonal to a thickness direction in a portion of the sealing layer that covers the capacitor unit.

An electrolytic capacitor including-includes an anode body that is porous, an anode wire including a buried part buried in the anode body and a protrusion part protruding to an outside of the anode body, a dielectric layer disposed on a surface of the anode body, a cathode part covering at least a part of the dielectric layer, an anode terminal electrically connected to the anode wire, and a cathode terminal electrically connected to the cathode part. A corner defined by three sides of the anode body is chamfered by an intersecting surface intersecting each of the three sides, the three sides intersecting each other. The protrusion part is protruded from the intersecting surface and is connected to the anode terminal.

An electrical energy storage device (2, 2A-2C) for an implantable medical stimulation device (1) comprises a housing (20), a first electrical electrode and a second electrical electrode having different electrical polarities, one of the first electrical electrode and the second electrical electrode being formed by an electrode element (21) having an electrically conductive electrode body (210) arranged in the housing (20), and a current collector arrangement (22) electrically connected to the electrode element (20). The current collector arrangement (22) comprises a first current collector element (220) forming a first current collection section (222) having a first free end (227) and a second current collector element (221) forming a second current collection section (223) having a second free end (228), wherein the first current collection section (222) and the second current collection section (223) each extend in the electrode body (210) or along a surface of the electrode body (210) such that the first free end (227) of the first current collector element (220) and the second free end (228) of the second current collector element (221) are arranged at a distance with respect to one another in or on the electrode body (210).

The present application provides an inductance element and a method for manufacturing the inductance element. The inductance element mainly includes a magnet, terminals, and an inductance coil. Among them, a magnet core is provided in the magnet, and the inductance coil is wound around the magnet core. Two terminals are provided, and the two terminals are provided on both sides of the magnet facing each other. Two welding joint lead wires extend out of the magnet from the inductance coil, and the two welding joint lead wires correspond one-to-one to the two terminals, and the welding joint lead wires are welded to the terminals.

By improving the conductivity efficiency, the temperature rise at the crimped portion is suppressed, providing an electrolytic capacitor with excellent reliability, and a method for manufacturing an electrolytic capacitor. [Solution] The electrolytic capacitor according to the present invention comprises an anode foil, a cathode foil, a separator, and lead terminals connected to the anode foil and the cathode foil, respectively. The lead terminal consists of a terminal portion, a lead wire, and a connection portion. The terminal portion has at least two crimped connection portions, which are perforated in a state where it is superimposed on the anode foil or the cathode foil, bent toward the anode foil or the cathode foil, and press-connected. The diameter of the press-connected crimped bent portion of the first crimped connection portion on the lead wire side of the terminal portion is larger than the diameter of the bent portion of the second crimped connection portion. The ratio of the diameter of the bent portion of the first crimped connection portion to the crimping distance between the first crimped connection portion and the second crimped connection portion is 1:0.9 to 1:1.3.

To provide a solid electrolytic capacitor having high reliability and high productivity by maintaining high airtightness while maintaining excellent electrical characteristics and a manufacturing method of the same.SOLUTION: A solid electrolytic capacitor comprises: a capacitor element 1 which has an anode body 2, a dielectric oxide covering layer 3 covering the anode body 2, and a cathode body 6 formed on the dielectric oxide covering layer 3 so as to be insulated from the anode body 2; an exterior body 10 which covers the capacitor element 1; a contact layer 11 which is formed in an anode terminal part 9 being an end of the anode body 2 and has a surface 11S with prescribed surface roughness; and an anode side electrode layer (12) which covers the surface 11S.SELECTED DRAWING: Figure 2

The application belongs to the technical field of conductive connection, and discloses a tantalum capacitor electrode connection structure, which comprises a tantalum capacitor connecting seat assembly and a tantalum capacitor assembly. The inside bottom end of the tantalum capacitor connecting seat assembly is provided with a conductive transposition assembly, and the inside top end of the tantalum capacitor connecting seat assembly is provided with a first transposition driving assembly and a second transposition driving assembly. The conductive positive electrode and the conductive negative electrode are optimized and improved, and the movable conductive connection is realized. Moreover, the long and short pins of the tantalum capacitor assembly are inserted in sequence with the conductive positive electrode and the conductive negative electrode. No matter whether the long and short pins are inserted in the positive direction or the reverse direction, the structure linkage is adopted, so that the long and short pins of the tantalum capacitor assembly are always in one-to-one positive direction with the conductive positive electrode and the conductive negative electrode, that is, the error-avoiding conductive connection is realized. When the tantalum capacitor assembly is disassembled, the arc-shaped reset spring is pushed and reset, and the tantalum capacitor assembly forms the electrode power-off action of self-ejection on the tantalum capacitor connecting seat assembly.

This electricity storage device includes an electricity storage element in which an electrode portion having a different polarity is formed on each of end surfaces of electrode foils that are layered and wound; a case having a housing portion housing the electricity storage element therein; and a current collecting component including a first connection surface portion placed on a bottom portion side of the housing portion and connected to the electrode portion formed on one end surface of the electricity storage element, and a second connection surface portion connected to an inner wall surface of the case in the housing portion. Consequently, it can be realized to ensure a large connection area of the electricity storage element and the case to the current collecting member to enhance the connectivity, and to facilitate a manufacturing work of the electricity storage device.

The invention discloses a series-parallel connection combined tantalum electrolytic capacitor, and belongs to the technical field of electronics, limiting sleeves are distributed on a bottom plate, limiting blocks are installed around the inner rings of the limiting sleeves, capacitors are placed in the limiting sleeves and the limiting blocks, and limiting partition plates are installed at the positive and negative ends of the capacitors. Limiting holes for leading out the positive and negative ends of the capacitor are formed in the limiting partition plates, wire limiting pieces are installed at the corresponding positions of the limiting holes, an assembling cavity is formed in the capacitor containing piece, placing frames are symmetrically installed at the upper end of the assembling cavity, the limiting partition plates are placed and connected through the placing frames, and the capacitor in the cavity is accurately pressed and positioned through the limiting partition plates. The capacitor is ensured to be stable and displacement-free in subsequent assembling and using processes, meanwhile, the influence of contact friction and electric field interference on the service life of wires is effectively reduced, circuit faults caused by early aging of the wires are avoided, and the operation stability and the service life of the whole device are remarkably improved.

The application discloses an aluminum electrolytic capacitor and relates to the technical field of electrolytic capacitors. The aluminum electrolytic capacitor comprises a shell, a cover plate and a core package. The core package comprises an anode foil, a cathode foil and two lead pins. One side of one lead pin is welded to the anode foil by laser welding. The other side of the one lead pin penetrates the cover plate. The other lead pin is welded to the cathode foil by laser welding. The other side of the lead pin penetrates the cover plate. The lead pin comprises an aluminum tongue and a lead wire. One side of the lead wire is connected with the aluminum tongue. The other side of the lead wire penetrates the cover plate. The aluminum tongue is inserted into the anode foil or the cathode foil at the side far from the lead wire. When the aluminum tongue is welded to the anode foil or the cathode foil, the conductive area between the lead wire and the anode foil or the cathode foil is increased, and the lead wire can be stably connected to the anode foil or the cathode foil through the aluminum tongue, so that the lead wire and the anode foil or the cathode foil are not easy to fall off, and the use of the aluminum electrolytic capacitor is ensured.

A solid electrolytic capacitor includes: an element stack, an anode terminal, a cathode terminal, and an outer member covering the element stack, the anode terminal, and the cathode terminal in a state where a part of each of the anode terminal and the cathode terminal is exposed. The element stack has a plurality of capacitor elements stacked with each other, and a conductive material interposed between adjacent two capacitor elements among the plurality of capacitor elements. Each of the plurality of capacitor elements includes an anode portion and a cathode portion, and the conductive material is disposed on the cathode portion. The anode terminal is connected to the anode portion. The cathode terminal is connected to the cathode portion via a conductive paste. In addition, the cathode terminal has an opposing surface opposing a front end of the element stack with a gap therebetween, and a seal material is filled in at least a part of the gap.

The present invention provides a method for manufacturing an electrolytic capacitor and an electrolytic capacitor, the method comprising a first step, a second step, and a third step. In the first step, a capacitor element is formed, comprising an anode body having a dielectric layer formed on its surface, a cathode body, and a separator disposed between the anode body and the cathode body. In the second step, a treatment liquid containing an acid component and an alkaline component is impregnated into the capacitor element. In the third step, while a portion of the treatment liquid remains in the capacitor element after the second step, a conductive polymer dispersion is impregnated into the capacitor element, the conductive polymer dispersion being obtained by dispersing conductive polymer particles containing polyanions in a solvent. The pH of the treatment liquid is higher than the pH of the conductive polymer dispersion.

Various embodiments of an electrical component and a method of forming such component are disclosed. The electrical component includes a substrate having a first major surface, a second major surface, and a cavity disposed in the substrate. The cavity extends between the first major surface and the second major surface. The electrical component also includes an anode electrode that includes a conductive foil layer disposed on the second major surface of the substrate and over the cavity. Tantalum material is disposed within the cavity and includes tantalum particles. A dielectric layer is disposed on the tantalum particles, and an electrolyte cathode layer is disposed on the dielectric layer. The electrical component also includes a cathode electrode disposed over the cavity.

This electrolytic capacitor is provided with: a capacitor element provided with an anode section and a cathode section; an exterior body that seals the capacitor element; a first external electrode electrically connected to the anode part and exposed from the exterior body; a second external electrode electrically connected to the cathode part and exposed from the exterior body; and a first base electrode that connects the anode portion and the first external electrode, the first base electrode contains a first sintered metal, the first sintered metal is in contact with an end surface of the anode portion not covered by the exterior body and is in contact with the first external electrode, and the ratio of the width Wp of the end surface of the anode portion to the thickness Tpc of the first sintered metal at the center of the width Wp: W1 / Tpc satisfies 0.5 < = W1 / Tpc < = 100.

A capacitor and an electronic device comprising same are disclosed. An electronic device according to the present disclosure may comprise: a substrate; a plurality of capacitors mounted on the substrate, each of the plurality of capacitors including a case extending to accommodate an electrolyte therein, and a cap coupled to one end of the case in the direction in which the case extends configured to restrict scattering of the electrolyte; and a fixing member comprising a protrusion and configured to press the perimeters of the caps in the radial direction of the caps to fix the plurality of capacitors to the substrate.

The present disclosure provides a core package, an aluminum electrolytic capacitor, and a method for sealing the same. The core package includes a plurality of first electrode foils and a plurality of second electrode foils arranged in a stacked manner. The first electrode foil is either an anode foil or a cathode foil, and the second electrode foil is the other of the anode foil and the cathode foil. Among the plurality of first electrode foils, one first conductive foil piece is provided at the edge of each first electrode foil. A first portion of the first conductive foil piece is electrically connected to the corresponding first electrode foil, and a second portion of the first conductive foil piece extends and protrudes with respect to the first electrode foil. The plurality of first conductive foil pieces are all connected to one first conductive foil strip via the second portions. Here, an oxide film is formed on the surface of the first conductive foil piece.

The utility model discloses a capacitor capable of preventing conductive polymer degradation, comprising a housing, a capacitor core and a cover plate, the capacitor core is arranged in the housing, the capacitor core is provided with a leading-out wire, a fixing band and an insulating layer, the cover plate is connected with the housing, the cover plate is provided with a leading-out end, the capacitor core is connected with the leading-out end through the leading-out wire, and the fixing band is arranged on the fixing band. The insulating layer is arranged between the capacitor core and the cover plate, and the outgoing line penetrates through the insulating layer. According to the utility model, the rivets on the cover plate are isolated through the insulating spacer, and the lead foil and the upper end face of the capacitor core form insulation shielding, so that direct contact between the lead-out foil and the conductive polymer on the upper end face of the capacitor core is avoided, and the conductive polymer on the core is prevented from being degraded by the rivets and the lead foil in the electrifying process of the capacitor; and the reliability of the capacitor is improved.