202results about "Capacitor terminals" patented technology

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.

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.

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.

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.

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.

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 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.

The utility model relates to an electrolytic capacitor core and an electrolytic capacitor, relates to the technical field of electrolytic capacitor preparation, and is used for solving the problem that the service life of the electrolytic capacitor is short. The roll comprises a roll core; the foil layer is wound on the winding core in the circumferential direction of the winding core; the electronic adhesive tape is wound on the foil layer in the circumferential direction of the winding core; the foil layer comprises a negative foil which extends out from one end, close to the bottom of the shell, of the foil layer and is in contact with the bottom; wherein heat generated by the foil layer can be dissipated to external air through the negative electrode foil and the shell in sequence. The lower end of the cathode foil is exposed out of the electrolytic capacitor core and is in contact with the bottom of the shell. Therefore, the cathode foil and the shell form a heat conduction path, namely a heat dissipation channel is additionally arranged. When the electrolytic capacitor works, part of heat generated by the positive electrode foil can be conducted to the shell through the negative electrode foil and then dissipated to the outside air through the shell. Therefore, the heat dissipation efficiency of the electrolytic capacitor is improved.

A capacitor may include a stack assembly that may include a plurality of anode plate members, each having an embedded wire. The anode plate members may be separated by at least one cathode foil sandwiched between separator sheets. A conducting member may electrically connect the embedded wires and may have an externally accessible end portion that is hermetically sealed from the interior of the capacitor. A case covers the stack assembly and may be attached to a cover. The case and cover may enclose the stack assembly within an interior area of the capacitor. The at least one cathode foil may be connected to the case. An electrolyte fluid may be disposed within the interior area. A passage may be provided through a central portion of the stack assembly. A tube, surrounded by insulation, may pass through the passage and may be connected to the cover and the case.

The present disclosure provides a core package, an aluminum electrolytic capacitor and a packaging method thereof. The core package includes a plurality of first electrode foils and second electrode foils laminated one on another, each of the first electrode foils is an anode foil or a cathode foil, and the second electrode foil is the other. Among the plurality of first electrode foils, a first conductive foil is arranged at the edge of each of the first electrode foils, a first portion of the first conductive foil is electrically coupled to the corresponding first electrode foil, and a second portion of the first conductive foil extends and protrudes relative to the corresponding first electrode foil; and the plurality of first conductive foils are connected to a first conductive foil strip through the second portion; and an oxide film is formed on a surface of the first conductive foil.

An electrolytic capacitor includes a capacitor element including anode and cathode foils wound together with a separator being interposed between the anode and cathode foils, a case that houses the capacitor element, a sealing body with which an opening of the case is sealed, and a holding member interposed between the capacitor element and the sealing body, the holding member holding an antioxidant that is more easily oxidized than the sealing body.

The utility model discloses a large-capacity long-life aluminum electrolytic capacitor, which comprises an aluminum shell and a rubber plug, the rubber plug is mounted at the top of the aluminum shell, a core bag is mounted in the aluminum shell, a buckling part is arranged on the upper side of the aluminum shell, the core bag is connected with a guide pin, the guide pin extends to the upper side of the rubber plug, a fixed seat is mounted at the upper end of the rubber plug, and the fixed seat is connected with the aluminum shell. A connecting frame is installed on the fixed seat, an insulating sleeve is arranged on the connecting frame, the guide pin penetrates through the insulating sleeve, an expansion section is arranged on the upper side of the insulating sleeve, the expansion section is in a big-end-up cone shape, and a groove is formed in the upper end of the rubber plug. And the expansion section is arranged at the upper end of the insulating sleeve, so that after the guide pin is accidentally collided or extruded, when the guide pin is bent due to large pressure, the expansion section can play a transition role, and the bending degree of the guide pin is reduced.

A corrosion-resistant aluminum electrolytic capacitor comprises a shell, a core bag and a cover plate, the core bag is arranged in the shell in a sealed mode through the cover plate, and an anode leading-out terminal is arranged on the cover plate. The anode leading-out terminal comprises an anode external terminal and an anode rivet; after the anode guide chaff on the core bag is connected to the anode rivet, the top of the anode guide chaff extends to form an extension part, and the extension part is bent back and then welded to the bottom of the anode rivet. According to the utility model, the top of the anode guide chaff is extended and then bent back to be welded on the bottom of the anode rivet; when corrosion is generated, the corrosion is firstly generated on the section of the anode foil guide strip welded at the bottom of the anode rivet; and the section of anode guide chaff with capacity leading-out and conduction effects is not obviously influenced, so that the product performance is improved, and the failure rate of the product caused by corrosion is reduced.

To prevent damage to a sealing material and falling of an electrode terminal due to rising of an electrode terminal.SOLUTION: A case 10 of a power storage device 100 includes a sealing plate 14, an electrode terminal 20, and a sealing material 30. The electrode terminal 20 has a shaft portion 22 and a plate portion 24. The plate portion 24 includes a connection surface 24a exposed to the outside of the case, a back surface 24b on an opposite side of the connection surface 24a, and a side surface 24c continuous with the connection surface 24a and the back surface 24b. The sealing material 30 includes: a base portion 32 that covers a back surface 24b of the plate portion 24 and the sealing plate 14; a side surface protection portion 36 that is continuous with the base portion 32 and covers the side surface 24c of the plate portion 24; and a locking portion 39 that is continuous with an upper end of the side surface protection portion 36 and covers a peripheral portion 24a1 of the connection surface 24a. In the power storage device 100 having such a configuration, since rising of the electrode terminal 20 can be regulated by the locking portion 39 of the sealing material 30, it is possible to prevent the sealing material 30 from being damaged and the electrode terminal 20 from falling off.SELECTED DRAWING: Figure 2

The utility model relates to a low-ESR laminated aluminum electrolytic capacitor based on a continuous phase metal layer. The low-ESR laminated aluminum electrolytic capacitor is characterized by comprising a shell and a core, the core is formed by correspondingly stacking a plurality of layers of pole pieces, the core is packaged in the shell, and an anode leading-out terminal and a cathode leading-out terminal which are connected with a cathode and an anode of the core are respectively arranged at two opposite ends of the shell; the pole piece takes a valve metal foil as a substrate; the periphery of the valve metal foil is divided into an anode part and a cathode part by insulating glue; the peripheral surface of the cathode part is sequentially coated with a solid conductive polymer layer, a non-metal conductive paste layer and a metal conductive paste layer from inside to outside; and the outer surface of the metal conductive paste layer is also coated with a continuous phase conductive metal layer. The negative electrode is coated with the continuous-phase conductive metal layer, so that the cavity defect of the metal slurry layer is improved, the edge coverage rate of conductive metal at the tail part and the side part of the pole piece is increased, the contact area between the pole pieces is increased, the parallel connection effect of the pole pieces is improved, the leading-out distance of the negative electrode is shortened, and the laminated electrolytic capacitor has relatively low ESR (Equivalent Series Resistance) and relatively low leakage current.

To attach a component body to a terminal member without welding, for example, and to improve the vibration resistance of an electronic component including the component body and the terminal member.SOLUTION: An electronic component (2) includes: a component body (4); a terminal member (6) arranged on a side surface (14) of the component body; and a holder (8) including a storage portion (formed of a through hole 50) in which the component body and the terminal member are accommodated. Therein a portion of the terminal member is sandwiched between the side surface of the component body and the holder.SELECTED DRAWING: Figure 1

The invention relates to methods for manufacturing an energy storage of an electrolytic capacitor, to a method for manufacturing a foil electrode of an aluminum electrolytic capacitor, to a device for manipulating a component of an aluminum electrolytic capacitor, to specifically designed foil electrodes for an aluminum electrolytic capacitor, to a method and a device for analyzing a quality of a section of paper to be used as separator of an electrolytic capacitor, and to a specifically designed electrolytic capacitor.

Provided is a method of manufacturing a lead terminal for a power storage device, the lead terminal including: an electrode terminal (2) formed of a wire material (100) mainly containing aluminum or copper; and a lead wire (3) connected to the electrode terminal through intermediation of a welded portion (4), the method including: a first step of aligning the wire material and the lead wire in a straight line, and holding the wire material and the lead wire under a state in which a distance between an end surface (100b) of the wire material on the lead wire side and an end surface (3b) of the lead wire on the wire material side is maintained at a predetermined distance; a second step of applying, by a laser irradiation machine (400), a laser beam to an end portion (100a) of the wire material on the lead wire side to melt the end portion; and a third step of pushing one of the wire material or the lead wire toward another one of the wire material or the lead wire in an axial direction after an elapse of a predetermined time from a time point of start of irradiation with the laser beam in the second step to form the welded portion.

An electrode plate, which is an example of an embodiment of the present invention, has a core body and a mixture layer formed on the core body, and is provided with an exposed part where the surface of the core body is exposed. The electrode plate has a lead joined to the exposed part, and an identification display part (36) formed on the outer surface of the lead. The identification display part (36) includes at least one of a discolored part and a recess formed on the outer surface of the lead by a melting and solidifying part that penetrates the lead in the thickness direction and reaches the exposed part and joins the lead and the exposed part.

The invention relates to methods for manufacturing an energy storage of an electrolytic capacitor, to a method for manufacturing a foil electrode of an aluminum electrolytic capacitor, to a device for manipulating a component of an aluminum electrolytic capacitor, to specifically designed foil electrodes for an aluminum electrolytic capacitor, to a method and a device for analyzing a quality of a section of paper to be used as separator of an electrolytic capacitor, and to a specifically designed electrolytic capacitor.

To provide an electrolytic capacitor having a member covered with an insulating film containing a coloring material, having a sufficient oxide film repairing performance with stable chemical conversion of an electrolyte component, and provide a producing method for the same.SOLUTION: In an electrolytic capacitor (e.g., a solid electrolytic capacitor 1) according to the present invention, a part of surfaces of electrode foils 2a and 2b or a part or all of the surfaces of at least one member of terminals (e.g., lead terminals 5 and 6) and a terminal fixing member is covered with an insulating film 7 formed of an insulating resin. The insulating film 7 contains at least one coloring substance that makes the insulating film distinguishable by a color sense. The coloring substance is a compound having a main skeleton having a conjugated double bond and a substituent having at least one chemical structure of a hydroxy group, an alkoxy group, and a ketone group, and the substituent does not have a chemical structure having a charge other than the hydroxy group, the alkoxy group, and the ketone group.SELECTED DRAWING: Figure 8

The invention discloses a chip-type conductive polymer tantalum capacitor and a preparation method thereof, and belongs to the technical field of tantalum capacitors, gaps are arranged between a tantalum capacitor main body and an external connection plate I and an external connection plate II, and the external connection plate I, the external connection plate II and the tantalum capacitor main body are connected through a guide plate in an extrusion manner, so that the function of multi-directional heat dissipation in the use process is realized; the tantalum capacitor body is of a tantalum capacitor body structure, outer connecting pieces are installed on the outer side of the tantalum capacitor body, inner connecting pieces are installed in the outer connecting pieces, guide plates are installed on the outer sides of the inner connecting pieces, and inner guide plates are installed on the outer sides of the guide plates. Outer guide plates are installed on the inner sides of the first external connection plate and the second external connection plate, the outer guide plates and the inner guide plates are connected in an attached mode, convenient installation and extrusion installation connection are achieved, the guide plates are of a V-shaped extrusion structure, a split type detachable structure is achieved, and the conductive plate is convenient to replace.