1230results about "Capacitor housing/encapsulation" patented technology

An energy storage apparatus includes an energy storage device, a holder that holds the energy storage device, and an outer case that accommodates the energy storage device and the holder. The outer case includes an outer case main body having an opening portion and a lid body that closes the opening portion. The lid body includes a projecting portion that projects toward the holder and is brought into contact with or presses the holder in a projecting direction of the projecting portion.

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

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

The invention relates to the technical field of power electronic components, and discloses a high-temperature-resistant electrolytic capacitor which comprises the following components in parts by weight: 80-90 parts of a graphene or carbon nanotube coating used for preparing an electrolytic capacitor shell; the invention further provides a preparation method of the high-temperature-resistant electrolytic capacitor, and the preparation method comprises the following steps: heat conduction optimization design: simulating a temperature field of the electrolytic capacitor through an unsteady-state heat conduction equation, optimizing a heat dissipation path of the electrolytic capacitor, and improving the heat dissipation performance of the electrolytic capacitor; and heat can be uniformly conducted to an external heat dissipation device. By introducing the microencapsulated phase change material, the graphene coating and the accurate temperature sensor array and optimizing heat dissipation design, efficient heat dissipation, temperature balance and long-term stability of the electrolytic capacitor in a high-temperature environment are achieved, the working performance of the electrolytic capacitor is remarkably improved, and the service life of the electrolytic capacitor is remarkably prolonged.

An electrolytic capacitor includes a winding portion, an anode lead member, and a cathode lead member. The winding portion includes an anode foil and a cathode foil that are wound. The anode lead member is connected to the anode foil and extends in a first direction. The cathode lead member is connected to the cathode foil and extends in the first direction. The winding portion has a shape viewed in the first direction, the shape including a first peripheral region and a second peripheral region that are opposed to each other in a second direction intersecting the first direction, and a third peripheral region and a fourth peripheral region that are opposed to each other in a third direction intersecting the first direction and the second direction. The length of the winding portion in the third direction is larger than the length of the winding portion in the second direction. The anode lead member and the cathode lead member are arranged point-symmetrically with respect to a center of the winding portion when viewed in the first direction.

A casing material for a power storage device, including a laminate that includes, in order, at least a base material layer, a barrier layer, and a heat-fusible resin layer. The heat-fusible resin layer includes a single layer or a plurality of layers. The heat-fusible resin layer includes at least one layer having a hardness of at least 70 MPa from a cross-section in the lamination direction of the laminate, measured using a nanoindentation method using an indentation load of 100 μN.

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.

The invention relates to the technical field of electrolytic capacitors, in particular to a high-frequency rapid charge and discharge aluminum electrolytic capacitor for a servo motor and a manufacturing method, the high-frequency rapid charge and discharge aluminum electrolytic capacitor comprises an anode foil, a cathode foil, a capacitor shell and electrolyte, porous electrolytic paper is arranged between the anode foil and the cathode foil, and oxide film layers are arranged on two sides of the anode foil. A stable and compact oxidation film is generated on the surface of the anode foil through the phosphoric acid formation liquid, so that the anode foil can withstand high-current impact, and the charging and discharging speed is greatly improved. According to the high-frequency rapid charging and discharging aluminum electrolytic capacitor for the servo motor and the manufacturing method, the high-frequency rapid charging and discharging aluminum electrolytic capacitor for the servo motor has excellent rapid charging and discharging performance, high voltage resistance, good temperature stability, long service life, high reliability and good heat dissipation performance.

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.

A solid aluminum electrolytic capacitor with good stability comprises a core package and a shell, the core package is arranged in the shell in a sealed mode through a rubber plug, the core package is formed by winding an anode foil, a cathode foil and electrolytic paper, and a conductive high-molecular polymer is formed between the anode foil and the cathode foil. The conductive high-molecular polymer comprises a first conductive high-molecular polymer layer and a second conductive high-molecular polymer layer, the first conductive high-molecular polymer layer comprises a first conductive high-molecular polymer and carbon microspheres wrapped with MnO2, and the carbon microspheres wrapped with MnO2 are wrapped with the first conductive high-molecular polymer. According to the invention, the carbon microspheres coated with MnO2 are added into the first conductive high-molecular polymer layer, so that a supporting effect can be achieved in the charge-discharge cycle of the solid aluminum electrolytic capacitor. And meanwhile, cracks on the carbon layers on the surfaces of the carbon microspheres can be beneficial to insertion of electrolyte, so that the damaged oxide film in the production process is repaired to a certain extent.

The invention relates to the technical field of capacitor electrolyte manufacturing, in particular to an ultrahigh-conductivity capacitor electrolyte formula and a preparation method thereof.The ultrahigh-conductivity capacitor electrolyte formula comprises a main solvent, a solute and an additive, an organic solvent in the main solvent and a low-viscosity organic solvent are mixed according to a specific proportion, the dielectric property and the ion migration environment of the solvent can be effectively balanced, and the conductivity of the capacitor is improved; and a good condition is created for ion transmission. And through reasonable matching and concentration control of high-dissociation-degree salts and organic salts in solutes, sufficient dissociation and efficient transmission of ions are ensured, and the conductivity of the electrolyte is greatly improved. A plurality of additives are added according to a specific proportion and properties, the conductivity enhancing additive forms a conductive network, the electrode protection additive forms a uniform protection film on the surface of an electrode to improve the interface stability, the electrolyte stabilizing additive inhibits decomposition and oxidation reactions in a wide temperature range, and stable performance and high conductivity of the electrolyte are guaranteed through a synergistic effect.

A solid electrolytic capacitor that includes: an anode plate including a core portion, a porous layer having pores on at least one main surface of the core portion, and a dielectric layer on a surface of the porous layer and extending into the pores of the porous layer; and a cathode layer that includes a solid electrolyte layer on a surface of the dielectric layer. The solid electrolyte layer includes a conductive polymer layer inside the pores of the porous layer, the conductive polymer layer comprising a mixture of a conductive polymer and an insulating material. The insulating material is a material which contains an OH group, a COOH group, a CO group, or an NH2 group in a molecule, has hygroscopicity, and does not have a function as a dopant for the above-described conductive polymer.

The utility model discloses a novel aluminum electrolytic capacitor, which comprises an open metal shell, the bottom of which is provided with a hollow radiating tube; the top end of the hollow heat dissipation pipe is sealed with a core package, the hollow heat dissipation pipe is provided with a winding structure, and a reel hole is formed in the middle of the winding structure; the core package is arranged in the metal shell, and the hollow radiating tube is inserted into the reel hole; and the sealing element is arranged on the core bag and is connected in the opening side of the metal shell in an embedded manner. According to the novel aluminum electrolytic capacitor provided by the utility model, the hollow radiating tube with the closed top end is additionally arranged at the bottom of the metal shell, so that the reel hole in the core package can be directly inserted into the hollow radiating tube when the core package is assembled, and the hollow radiating tube not only realizes quick assembly of the core package and centered positioning of the core package, but also realizes quick assembly of the core package. And the core package is effectively fixed without shaking, so that the assembling stability is ensured, and meanwhile, high heat generated in the capacitor in a working state can be timely and effectively conducted out due to the hollow arrangement of the heat dissipation pipe.

The present invention discloses a negative pressure packaging method for aluminum electrolytic capacitors, comprising: inserting a core into a sealing body. Placing the core, the sealing body and the outer shell in the inner cavity of a receiving mechanism, and sealing the receiving mechanism. Evacuating the inner cavity of the receiving mechanism so that the inner cavity of the receiving mechanism is in a negative pressure state. The sealing body and the outer shell are packaged so that the sealing body is located at a first depth of the outer shell. The sealing body and the outer shell are pressed together so that the sealing body is located at a second depth of the outer shell, and the second depth is closer to the bottom of the outer shell relative to the first depth. The method solves the problem of the sealing body sliding too long on the inner wall of the outer shell in the prior art, avoids overheating of the friction surface of the sealing body and slight melting, and can ensure that the outer diameter of the sealing body will not shrink, thereby ensuring the airtightness of the outer shell and the sealing body, realizing the negative pressure packaging of the aluminum electrolytic capacitor, improving the stability of the product and increasing the service life of the product.

A capacitor element that includes: a capacitor portion including an anode plate including a porous portion on a core portion, a dielectric layer on the porous portion, and a cathode layer on the dielectric layer; a sealing layer covering the capacitor portion; conductive interconnect layers on the sealing layer; and an outer insulating layer covering the sealing layer and the conductive interconnect layers. In a plan view from a thickness direction of the anode plate, a center-to-center distance between a first anode through conductor and a first cathode through conductor is equivalent to a center-to-center distance between the first anode through conductor and a second cathode through conductor, and a center-to-center distance between a fifth cathode through conductor and the first cathode through conductor is equivalent to a center-to-center distance between the fifth cathode through conductor and the second cathode through conductor.

A capacitor array that includes: a capacitor part including a plurality of capacitor elements disposed in a planar arrangement in an in-plane direction orthogonal to a thickness direction, the plurality of capacitor elements including mutually adjacent capacitor elements that are separated from each other, wherein the plurality of capacitor elements each include a first electrode layer and a second electrode layer that face each other in the thickness direction with a dielectric layer interposed between the first electrode layer and the second electrode layer; a built-in member disposed at an outer periphery of the capacitor part in the in-plane direction; and a sealing layer that seals the capacitor part and the built-in member, wherein the built-in member has a higher melting temperature than the sealing layer.

Provided are: an electrolytic capacitor in which a decrease in electrostatic capacity is suppressed even in a high-temperature environment; and a manufacturing method. An electrolytic capacitor comprises: a capacitor element having a positive electrode foil, a negative electrode foil, an electrolytic solution, and a solid electrolyte layer; a case that accommodates the capacitor element; and a sealing body for sealing the case. The sealing body has an elastic body containing an elastomer. The elastomer contains butyl rubber, and is contained in the elastic body at 31 wt% or more. The electrolytic solution contains glycerin in the amount of 40 wt% or more in the solvent of the electrolytic solution.

A lightweight compact combined tantalum capacitor comprises a housing with an accommodating cavity formed inside, a packaging cover used for sealing the accommodating cavity, a plurality of single tantalum capacitors arranged in the accommodating cavity, and a fixing mechanism arranged between the packaging cover and the housing. The shell further comprises a plurality of placing grooves which are arranged at the bottom of the accommodating cavity at intervals and are used for placing a plurality of single tantalum capacitors, and two lead holes which are oppositely arranged on the side wall of the accommodating cavity and extend outwards; by limiting the structure of the combined tantalum capacitor, the combined tantalum capacitor structure which is attractive in appearance, compact in space and easy, convenient and rapid to assemble is obtained, meanwhile, the electrical gaps and insulativity between the end faces of the multiple single tantalum capacitors can be guaranteed, the product weight is reduced, the multiple single tantalum capacitors are stably installed, and overall installation is facilitated.

The invention discloses a special aluminum fixing capacitor for an electronic detonator with ultralow electric leakage characteristic and a preparation method thereof, the capacitor comprises a positive foil electrode, a negative foil electrode, an aluminum foil or an aluminum alloy foil coated with an oxide film on the surface, electrolytic paper and an electrolyte, and the electrolyte can be a phosphate-based electrolyte, a borate-based electrolyte or an organic electrolyte containing high-conductivity salt, and an additive, the preparation method comprises the following steps: slitting positive and negative foils and electrolytic paper, winding the positive and negative foils and the electrolytic paper to form a concentric circle, forming a repair oxide film, dipping a conductive polymer material, baking and polymerizing to form a conductive film, injecting a pouring sealant into an aluminum shell, and carrying out heat treatment to obtain the conductive aluminum shell. The formation liquid is ammonium dihydrogen phosphate, ammonium adipate or boric acid aqueous solution, and the pouring sealant is epoxy resin or polyurethane; the capacitor has an ultra-low electric leakage characteristic, is suitable for being used as a power supply energy storage element in an electronic detonator system, stabilizes power supply output and inhibits an electric leakage phenomenon.

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.

To allow attachment of electrolytic capacitors and other relatively large electrical circuit devices to a PCB while meeting size limitations, The PCB can include a full-through opening within which the device can be located. Along one edge of the opening, the PCB includes half-through cuts with a conductive lining extending from the opening, where the pins of the capacitor or other device can rest and form electrical connections. In addition to pins extending radially from one end of the capacitor or other device, the device includes a notch extending from the opposing end. Along the edge of the PCB opening opposing the half-through cuts for the pins, the PCB includes a half-though cut for the device's notch to rest, thereby providing mounting stability.

The present invention relates to the technical field of manufacturing solid aluminum electrolytic capacitors, and specifically discloses a moisture-resistant laminated solid aluminum electrolytic capacitor and a manufacturing method, including a shell and a cover, wherein the inner side of the shell is provided with positive contacts and negative contacts that are staggered and distributed at equal intervals, the inner side of the shell is provided with two symmetrically distributed arc strips, the bottom of the arc strip is fixedly connected with two symmetrically distributed conductive strips, the inner side of the conductive strip is fixedly connected with U-shaped card slots that are distributed at equal intervals in a straight line, and the outer side of the positive contact and the outer side of the negative contact are respectively provided with positive conductive sheets and negative conductive sheets. The present invention arranges two conductive sheets on the outer side of the positive contact and the negative contact, and if one group of conductive sheets and the U-shaped card slot appear, the other group of conductive sheets and the U-shaped card slot can still be used normally, so that the entire capacitor can continue to be used, thereby improving the service life of the laminated solid aluminum electrolytic capacitor.

A solid electrolytic capacitor includes: a capacitor element including an anode part and a cathode part; a substrate that supports the capacitor element; a sealing body that seals the capacitor element; a first external electrode electrically connected to the anode part; a second external electrode electrically connected to the cathode part; and an adhesive layer disposed between the capacitor element and a first surface of the substrate. At an interface between the first surface and the adhesive layer, a maximum height Rz1 of surface roughness of the first surface is 5 μm or more, and a maximum height Rz2 of surface roughness of the adhesive layer is 3 μm or more.

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 electrochemical device is provided capable of maintaining good electrical connection and providing good sealability. An electrochemical device 1 includes: a case 10 including a recessed container 11 having a bottom 111 and a side wall 112, and a cap 12 that covers the opening of the recessed container 11; a power generation element 20 having a laminate with an electrode layer 21, an electrode layer 22 and a solid electrolyte layer 23 laminated together and housed in the interior space of the case 11 such that the bottom 111 and electrode layer 21 face each other; and a conductive plate 30 positioned adjacent to the opening of the recessed container 11 and between the electrode layer 22 and cap 12. The recessed container 11 includes a plurality of supports 115 on the inner peripheral surface of the side wall 112. The conductive plate 30 includes a plurality of supported portions 31 located on its edges and corresponding in position to the supports 115. With each supported portion 31 supported by its associated support 115, the power generation element 20 is pushed by a spring piece 33 of the conductive plate 30 toward the bottom 111 of the recessed container 11.

The present application discloses an aluminum electrolytic capacitor with a heat dissipation structure, and relates to the technical field of capacitors. The present application includes: a mounting plate, on which an inner core is mounted, and pins are mounted on the inner core; a mounting shell, which is mounted on the mounting plate, and the mounting shell is used to accommodate the inner core. The present application mounts the inner core on the mounting plate, and mounts the mounting shell on the mounting plate, and a top hole, an upper air duct and a lower air duct are provided on the mounting shell, so that the inside of the mounting shell is connected with the outside, so that the mounting shell can directly transfer heat while indirectly transferring heat, and according to the influence of air density, the inner outlet position of the upper air duct inside the mounting shell is lower than the outer outlet, which is convenient for the discharge of hot air, and the upper outlet of the lower air duct is opened in the mounting shell, and the lower outlet is opened outside the mounting shell, which is convenient for the cold air outside to enter the mounting shell, and further facilitates the air exchange inside and outside the mounting shell, thereby increasing the heat dissipation effect of the device.

To provide an exterior material for a power storage device which is difficult to be deformed even when being pressurized under high temperature environment.SOLUTION: An exterior material for a power storage device includes a base material layer, a barrier layer, a thermal adhesive resin layer or an adhesive layer, and a sealant layer which are laminated in this order, wherein when the thermal adhesive resin and the sealant layer, or the sealant layer is represented by (I), and the base material layer is represented by (II), a loop stiffness value of (I) is 10 mN or more and 80 mN or less, a loop stiffness value of (II) is 2 mN or more and 20 mN or less, a ratio (I / II) in the loop stiffness value of (I) to (II) is 1.0 or more and 15 or less, and a ratio (I / II) in the thickness of (I) to (II) is 1.0 or more and 8.0 or less.SELECTED DRAWING: Figure 1

A capacitor assembly package structure, capacitor structure and method of manufacturing the same, and electronic device. The capacitor assembly package structure includes a capacitor assembly, an insulating package body and an electrode assembly. The capacitor assembly includes a plurality of capacitor structures that are stacked in sequence and electrically connected to each other. The insulating package body is configured to encapsulate a plurality of the capacitor structures. The electrode assembly includes a first electrode structure and a second electrode structure. Each of the capacitor structures includes a sintered silver layer, and the sintered silver layer includes more than 95% pure silver material. The average thickness of the sintered silver layer can be less than or equal to 1 μm, and the resistivity of the sintered silver layer can be less than the resistivity of a silver glue material formed by mixing epoxy resin and silver powder.