30results about "Capacitor details" patented technology

The application provides a production method of an aluminum-plastic film and an aluminum electrolytic capacitor formation foil, relates to the field of formation foil production, and is characterized by an aluminum-plastic film structure and a preparation process of the formation foil. The aluminum-plastic film comprises, from inside to outside, an aluminum electrolytic capacitor formation foil, a bonding layer and a heat-sealing layer. The bonding layer is composed of maleic anhydride modified polyolefin, diisocyanate and glycidyl ether type epoxy resin, and the heat-sealing layer is composed of polypropylene and polyphenylene sulfide. The production of the formation foil is realized through multi-stage electrolytic oxidation and optimized combination of various additives, so that the thickness and compactness of the oxidation film are gradually improved, the voltage resistance, specific capacity and mechanical strength of the formation foil are significantly improved, and the leakage current is reduced.

Disclosed herein are charge or electricity generating devices and methods of making and use thereof.

This utility model discloses a vehicle-mounted capacitor fixing device for installing and fixing capacitors. It includes a support frame body, a capacitor fastening structure disposed at one end of the support frame body for fastening the bottom end of the capacitor, a plurality of clamping springs disposed on the side of the support frame body for holding the capacitor, and fixing pins extending from the other end of the support frame body for fixing the capacitor to a circuit board. The support frame body has a square frame structure and a capacitor receiving space for accommodating the capacitor. After the capacitor is accommodated in the capacitor receiving space, it is fixed by the capacitor fastening structure and the clamping springs, and then fixed to the circuit board by the fixing pins. This vehicle-mounted capacitor fixing device can stably and securely install and fix the capacitor to the circuit board, and effectively reduce vibration, preventing premature damage to the capacitor due to resonance between the capacitor and the vehicle body.

The utility model discloses an aluminum electrolytic capacitor with a heat dissipation structure, particularly relates to the technical field of aluminum electrolytic capacitors, and comprises a capacitor body, and the upper end and the lower end of the outer surface of the capacitor body are symmetrically and movably connected with bearing assemblies. A plurality of supporting mechanisms are fixedly connected to the sides, close to each other, of the outer portions of the two bearing assemblies in an annular array mode, a plurality of heat conduction mechanisms are fixedly connected to the sides, close to each other, of the supporting mechanisms at intervals, and heat dissipation mechanisms are fixedly connected to the sides, close to each other, of the heat conduction mechanisms. According to the aluminum electrolytic capacitor with the heat dissipation structure, the bearing assembly can be supported through the supporting mechanism, and heat emitted by the capacitor body during working can be absorbed through the heat conduction mechanism. And under the action of the heat dissipation mechanism, the heat absorbed by the plurality of heat conduction mechanisms can be timely dissipated to the outside, so that the practicability and universality of the device are improved.

The invention belongs to the technical field of metallurgy, and particularly relates to high-apparent-density tantalum oxide and a preparation method thereof. The invention provides a preparation method of high-apparent-density tantalum oxide, which comprises the following steps: adding a urea solution into a fluotantalic acid solution, and carrying out first neutralization reaction to obtain a fluotantalic acid neutralization solution; adding ammonia water into the fluorine tantalic acid neutralization solution, and carrying out a second neutralization reaction to obtain tantalum hydroxide; and calcining the tantalum hydroxide to obtain the high-apparent-density tantalum oxide. According to the present invention, the traditional process is adjusted, the high apparent density tantalum oxide is prepared by using the two-stage neutralization method, the urea is used for neutralization in the first-stage neutralization, the solubility of the urea is high, the dispersion degree of the urea in the solution is good, and the urea is added in the first-stage neutralization so as to form the uniform and fine crystal nucleus without generating the precipitate; and adding ammonia water to slowly neutralize, so that a crystal nucleus slowly grows, and tantalum oxide which is easy to wash and filter, not easy to agglomerate, good in dispersity, regular in crystal form, uniform in morphology and high in loose density is formed.

The invention relates to the technical field of tantalum core manufacturing, and discloses a forming method for reducing shape damage of a tantalum core, which comprises the following steps: S1, preparing a wax dragging liquid: weighing stearic acid, dissolving the stearic acid in an ethylene glycol solution, and stirring until the stearic acid is completely dissolved to obtain the wax dragging liquid of the stearic acid; s2, smearing wax dragging liquid: selecting a forming die, dipping the wax dragging liquid and uniformly smearing the wax dragging liquid in an inner cavity of a female die; s3, compression molding: pouring the tantalum core raw powder into a molding mold, and performing compression molding to obtain a molded tantalum core; s4, pre-sintering: pre-sintering the molded tantalum core in an environment of lower than 200 DEG C; s5, sintering: sintering the molded tantalum core in an environment of higher than 1000 DEG C to obtain an anode tantalum core; and S6, forming, wherein the anode tantalum core is placed in a dilute nitric acid aqueous solution, and constant pressure forming is adopted. Through mold treatment, technological parameter control and material matching, the problem of shape damage in the tantalum core forming process of the high-energy hybrid tantalum capacitor is solved, and the anode tantalum core quality and the capacitor reliability are remarkably improved.

The utility model discloses a kind of vehicle-mounted capacitor shock absorber for installing and fixing capacitor, it includes support seat, capacitor fastening structure for being set to the one end of support seat to be used for fastening capacitor bottom, a plurality of clamping spring for being set to the side of support seat and extending to the direction away from capacitor fastening structure to be used for clamping capacitor, and fixed sheet for being set to the other end of support seat, for capacitor is fixedly installed to the fixed sheet on circuit board;Wherein, the extension direction of the fixed sheet is same with the extension direction of the clamping spring.The utility model vehicle-mounted capacitor shock absorber can effectively constrain capacitor, realize the shock absorption of capacitor, prevent capacitor and vehicle body resonance lead to the damage of capacitor.

The utility model relates to the technical field of tantalum capacitors, in particular to an ultra-high-voltage chip tantalum capacitor, which comprises a tantalum capacitor limiting mechanism, a chip capacitor limiting mechanism and a chip capacitor limiting mechanism, the fixing mechanism is fixed at the upper top of the placing box and can limit the ultrahigh-voltage chip tantalum capacitor; and the guide mechanism slides in one side of the placing box and can adjust the electrical connection position. According to the utility model, the designed placement box is fixed on the circuit board, so that a regular placement space can be provided for a plurality of ultrahigh-voltage chip tantalum capacitors, and compared with a traditional series connection mode without a fixing mechanism, the ultrahigh-voltage chip tantalum capacitors are orderly arranged in the storage box, so that random distribution on the circuit board is avoided; the occupied space of the circuit board is greatly reduced, the layout of the circuit board is more compact and reasonable, and miniaturization and integration of electronic equipment are facilitated.

The utility model discloses a horizontal vehicle capacitor, including capacitor body and be used for installing and fixing capacitor body's fixed bolster, capacitor body includes aluminium shell, core bag, apron and set up on the outgoing terminal of apron, fixed bolster includes first fixed clamp, second fixed clamp, the cross -lay reinforcing rib of connecting first fixed clamp with second fixed clamp and the fixed pin of outgoing from first fixed clamp and second fixed clamp respectively, wherein, first fixed clamp and second fixed clamp are used for respectively fastening capacitor body's both ends, the fixed pin sets up in first fixed clamp and second fixed clamp same side, to be used for installing and fixing fixed bolster on circuit board or external device, the utility model discloses horizontal vehicle capacitor can install and fix capacitor stably on circuit board, and effectively restricts capacitor, prevents capacitor and car body resonance and leads to capacitor's premature damage.

The utility model provides an LED driver shell structure convenient to maintain. The LED driver shell structure convenient to maintain comprises an upper cover, a lower cover and a PCB installed in the lower cover. The upper cover is connected with the lower cover; the lower cover comprises a mounting plate and a movable plate which are separated from each other, and the mounting plate and the movable plate are respectively connected with the upper cover through bolts; and the PCB is mounted on the movable plate. A capacitor is installed on the PCB, the capacitor is a bolt type aluminum electrolytic capacitor, and the capacitor is installed on the PCB through a bolt. According to the LED driver, a traditional lower cover integrated structure is changed into a separated structure, the PCB can be independently detached and separated during maintenance, the bolt type aluminum electrolytic capacitor on the PCB can be detached and replaced, and the purpose of prolonging the service life of the LED driver is achieved.

The utility model discloses a surface-mounted aluminum electrolytic capacitor, which relates to the technical field of aluminum electrolytic capacitors and comprises a fixed base, a capacitor is rotatably connected in the fixed base, a clamping assembly is arranged on the outer side of the capacitor, a rebounding assembly is arranged in the fixed base, and a gear shifting assembly is arranged in the fixed base. A fixing assembly is arranged in the fixing base. According to the utility model, by pressing the driving lever, the driving lever is rotated, so that the bottom of the driving lever enters the interior of the fixed base, then the capacitor is rotated anticlockwise, so that the fixed column abuts against the push plate, then the capacitor is extruded along with the first spring, and the driving lever is loosened, so that the driving lever returns to the original position under the action of the second spring, and then the capacitor is loosened. And the second spring drives the pushing plate to push the fixing column to abut against the bottom of the shifting rod, so that the capacitor is fixed, the capacitor is more convenient to install, and the capacitor is more convenient to replace.

The invention discloses a preparation method of a multi-color modulation electrochromic energy storage device based on Nb2O5 and a PANI electrode. The whole device is of a composite layered structure and sequentially comprises an electrochromic functional layer loaded with an Nb2O5 cathode film, an ion conduction layer formed by a lithium salt solution and an ion storage functional layer loaded with a PANI anode film from top to bottom. A 3M double-sided tape is used as a spacing layer between the two electrodes, and the device is sealed and packaged through an ultraviolet curing adhesive. The device is simple and convenient in preparation process and low in cost, can break through the limitation of single color switching of a traditional Nb2O5-based device, realizes rich multi-color regulation and control, has an energy storage function, can be widely applied to the fields of intelligent glasses, new energy automobile display parts and the like, and has a wide market application prospect.

A surface-mounted aluminum electrolytic capacitor comprises a capacitor body and a base, the base comprises a base body and a back plate, and the back plate is arranged on the base body; the seat body and the back plate form an accommodating space of the capacitor body, a lead groove is formed in the bottom of the seat body, the lead groove is in butt joint with a lead through hole in the seat body, and an arc-shaped protruding step is arranged at one end, close to the lead through hole, of the lead groove. According to the surface-mounted aluminum electrolytic capacitor of the utility model, one end, close to the aperture, of each of the two lead grooves of the base plate is provided with an arc-shaped protruding step, so that the stress area at the break angle of the lead is increased, right-angle bending is avoided, and the break angle is in a curved surface shape; therefore, the problems of poor stress resistance, lead tail end height difference and the like in the traditional design are effectively improved; meanwhile, the arc-shaped protruding steps can effectively reduce the tilting of the tail end of the lead after reflow soldering of the surface-mounted electrolytic capacitor.

According to the design scheme of the non-shell press-fitting-free concentrated insulation type aluminum electrolytic capacitor module, an aluminum shell of an aluminum electrolytic capacitor single body is omitted, the core bag is directly assembled with a nest hole cavity of the metal heat conduction base body component, an efficient heat conduction path is established between the hot spot center of the core bag and the metal heat conduction base body component, and the heat conduction efficiency is improved. Most of thermal resistance conducted to the metal heat conduction base body component by the heat of the core cladding is eliminated; and particularly, a press-fitting process is saved, so that the capacitor module is easy to manufacture, the performance and the reliability are improved, and the cost is also greatly reduced.

The invention relates to the technical field of capacitors, in particular to a combined aluminum electrolytic capacitor and a production process thereof, the combined aluminum electrolytic capacitor comprises a plurality of capacitor monomers which are detachably connected, each capacitor monomer is enclosed by a shell, a lower end cover and an upper end cover to form an accommodating cavity, and an electrode assembly, electrolyte and a liquid bag filled with thermal expansion liquid are arranged in the accommodating cavity; the two ends of the upper end cover are provided with a male connecting part and a female connecting part respectively, and the male connecting part and the female connecting part are detachably connected and provided with a male channel, a female channel, a male blocking assembly and a female blocking assembly, the problems that an aluminum electrolytic capacitor is insufficient in mechanical stability, uneven in electrolyte permeation, poor in electrochemical performance consistency and low in detection efficiency due to the fact that a core body is too thick can be solved, on-demand assembly is achieved through modular design, the liquid bag is used for driving the electrolyte circulation balance performance, the product reliability and the production yield are improved, and the production cost is reduced. And the method is suitable for high-power and miniaturized application scenes.

The utility model discloses a high heat dissipation electrolytic capacitor device, which belongs to the technical field of electrolytic capacitors, aims to solve the problems of limited heat dissipation capability and uneven heat dissipation of a capacitor device, and comprises a bottom plate, two sides, the front end and the rear end of the bottom plate are fixedly connected with mounting lugs, and the center position of the top of the bottom plate is fixedly connected with a positioning groove. According to the utility model, through the arrangement of the heat dissipation mechanism, when a capacitor operates, heat dissipation fans and a servo motor are turned on, the servo motor drives a gear to rotate, so that an outer gear ring meshed with the gear rotates along with the gear, and an annular sleeve drives the two heat dissipation fans at the top of the annular sleeve to rotate and circulate; and the operation of the cooling fan can promote the uniform flow of air around the capacitor, so that the problem of over-high local temperature can be avoided, the more uniform cooling effect of the surface and the periphery of the capacitor is ensured, the service life of the capacitor is prolonged, and the stability and the performance of the capacitor are improved.

The utility model discloses a kind of vertical vehicle-mounted capacitor, including capacitor body and the fixing device for installing and fixing capacitor body;The capacitor body includes aluminum shell, the core package encapsulated in aluminum shell, the cover plate for the core package encapsulation in aluminum shell, and the lead-out terminal being set on cover plate;The fixing device includes capacitor fixing seat, anti-explosion clamping spring piece and the fixed pin being set on capacitor fixing seat;Wherein, the capacitor fixing seat and the anti-explosion clamping spring piece form a containing space containing capacitor body;Capacitor body is contained in the containing space, and is installed and fixed on circuit board by the fixed pin and lead-out terminal.The utility model vertical vehicle-mounted capacitor can be stably and firmly installed and fixed on circuit board, prevent capacitor and vehicle body resonance cause capacitor's premature damage.

The invention relates to an electrolyte solution for an aluminum electrolytic capacitor and application of the electrolyte solution in a solid aluminum electrolytic capacitor with high capacitance, the electrolyte solution is prepared by compounding PEDOT: PSS dispersion liquid, a solvent and three additives (namely perfluorohexyl ethyl methyl dimethoxy silane, perfluorosulfonic acid resin and polyvinyl butyral), according to the additive, by reducing the water vapor transmission rate, inhibiting dissociation of acid sulfonic acid groups, enhancing the film foil interface adhesive force and inhibiting interface stripping and dielectric layer hydration thickening caused by moisture absorption expansion and reduction dedoping of PEDOT: PSS, the temperature resistance and the moisture resistance of the aluminum electrolytic capacitor are improved, and the service life of the aluminum electrolytic capacitor is prolonged.

The utility model discloses a kind of vehicle-mounted capacitor fixed shockproof devices, for installing and fixing capacitor, it includes capacitor fixed frame and the fixed foot led out from capacitor fixed frame;Wherein, the capacitor fixed frame is through square frame structure, capacitor fixed frame is provided with capacitor accommodation space, to accommodate capacitor;Fastening piece is arranged on the side surface of capacitor fixed frame staggeredly, to be used for fastening capacitor in capacitor accommodation space;The both ends of capacitor fixed frame are set to square opening, and the fixed foot is led out on the four corners of square opening in one end, and is fixedly installed on circuit board or external device by the fixed foot. The utility model vehicle-mounted capacitor fixed shockproof device can stably and firmly install capacitor on circuit board, and shock absorption is carried out to capacitor, shock absorption of capacitor is realized, to prevent capacitor and vehicle body resonance from causing capacitor damage.

The utility model relates to an integrated super energy storage module, which is characterized by comprising a shell and a capacitor monomer, wherein the shell is provided with an accommodating cavity; a plurality of capacitor monomers are mounted in the accommodating cavity; a positive collector plate and a negative collector plate which are used for collecting current are arranged on one side close to the pins of the capacitor monomers; positive pins of the capacitor monomers are connected in parallel with the positive collector plate; the negative electrode pins of the capacitor monomers are connected in parallel with the negative electrode collector plate. One end of the positive electrode collector plate is provided with a positive electrode output port, the positive electrode output port penetrates out of the shell and is exposed, one end of the negative electrode collector plate is provided with a negative electrode output port, and the negative electrode output port penetrates out of the shell and is exposed. The energy density and the integration degree of the module are greatly improved, the performance of the module is greatly enhanced, and the capacitor module has wide market requirements in the national strategic emerging industries such as rail transit, electric automobiles, photovoltaic energy storage and intelligent electric appliances.

The utility model discloses a vehicle-mounted anti-vibration capacitor, including capacitor body and capacitor shockproof fixed bolster, the capacitor body includes aluminium shell, the core bag of encapsulation in aluminium shell, the cover plate for the core bag encapsulation in aluminium shell to set up the outgoing terminal on the cover plate, the shockproof fixed bolster includes at least two annular cover, the multiple reinforcing bars of connecting annular cover and be used for the multiple fixed feet of capacitor fixed, wherein, two annular cover sets up respectively at the both ends of shockproof fixed bolster, and the center axis of two annular cover coincides with capacitor body, and two annular cover and the multiple reinforcing bars of connecting two annular cover form a cylindrical space to place capacitor body. The utility model discloses vehicle-mounted anti-vibration capacitor can be stably firmly installed and fixed on the circuit board, and the shock absorption of capacitor is carried out, the anti-vibration performance of capacitor is promoted, and the premature damage of capacitor and vehicle body resonance is prevented.

The invention is applicable to the technical field of materials, and provides a high-voltage electronic aluminum foil uniform corrosion preparation method which comprises the following steps: immersing degreased aluminum foil into a hydrochloric acid solution for activating treatment; the preparation method comprises the following steps: by taking aluminum foil as an anode and graphite as a cathode, carrying out constant-current electrochemical corrosion in a specific electrolyte solution which is a 0.1-0.15 M aqueous solution formed by mixing rubidium bromide, triethyl iodide sulfur and tetrabutylammonium bromide according to a molar ratio of (1-3): 1: 1, and under the process conditions that the temperature is 50-60 DEG C, the current density is 70-90mA / cm < 2 > and the corrosion time is 20-40s; and washing the pre-corroded aluminum foil with water, and carrying out main electrochemical corrosion to obtain a finished product. Uniform initial corrosion sites are formed through specific halide ions, tunnel holes are guided to uniformly grow along the (100) crystal face, the effective specific surface area and specific capacitance are remarkably improved, technological parameters are controllable, stability is high, the improvement cost is low, the method is suitable for industrial production, and related products are excellent in performance.

The invention relates to the technical field of conductive paste, in particular to conductive silver paste and a preparation method and application thereof. The conductive silver paste comprises a core-shell material, a matrix polymer, a third adhesive and an auxiliary agent; the core-shell material comprises a silver-coated metal organic framework-conductive polymer; the silver-coated metal organic framework-conductive polymer comprises a silver elementary substance, a conductive polymer, a metal organic framework, a first adhesive and a second adhesive. According to the conductive silver paste provided by the invention, the cost of the conductive silver paste can be reduced, and / or the laminated solid aluminum electrolytic capacitor prepared by using the conductive silver paste provided by the invention is relatively small in sheet resistance, relatively small in tangent value (tan delta) of a loss angle, relatively small in equivalent series resistance (ESR) and relatively small in leakage current.

The disclosure outlines a method for manufacturing a supercapacitor. The process involves laminating a first adhesive on one side of a metal foil, which has an active electrode material on its other side. The metal foil, active electrode material, and first adhesive are then cut to provide a singulated electrode reel with multiple singulated electrodes. This reel is transferred to a laminate foil layer, with the first adhesive positioned between the first side of the metal foil and the laminate foil layer. A connector tab is connected to each singulated electrode on the reel, creating a partial cell reel with multiple partial cell stacks. Finally, a separator with a second adhesive is applied to each partial cell stack on the partial cell reel.

The utility model discloses a vehicle-mounted anti-explosion capacitor, including capacitor body and the capacitor anti-explosion fixing device of installation capacitor body, wherein, capacitor body includes aluminum shell, the core bag of encapsulation in aluminum shell, the apron for the core bag encapsulation in aluminum shell to set up the lead-out terminal on the apron, the anti-explosion fixing device includes the sleeve of two ends through, sets up the reinforcing rib on the sleeve surface to and is used for the multiple fixed feet of capacitor installation fixed, the inside of sleeve forms cylindrical receiving space, capacitor body places in receiving space, and is installed and fixed on the circuit board through the fixed foot and the lead-out terminal on the apron, the utility model discloses vehicle-mounted anti-explosion capacitor can install and fix capacitor stably firmly on the circuit board, prevent capacitor and the body of the car resonance and lead to damage capacitor, and through effective restraint capacitor body, prevent capacitor internal explosion radiation impact, protect other devices on the circuit board.

The invention provides a relay device, which is provided with a relay with a mechanical contact, does not need to reset a count value when the relay is replaced, and can accurately judge the replacement time and the like even if the relay is replaced by a relay which is used in the midway. A relay device is configured from a relay mounting substrate (20) on which a relay (21) is mounted and which can be replaced in a state in which the relay (21) is mounted, a non-volatile memory (22) mounted on the relay mounting substrate (20), and an MPU (microprocessor) (32) provided separately from the relay mounting substrate (20) and which can be replaced in a state in which the relay (21) is mounted, the non-volatile memory (22) being mounted on the relay mounting substrate (20) and the MPU (microprocessor) (32) being mounted on the relay mounting substrate (20). Information relating to the relay (21) is written to a non-volatile memory (EEPROM 22).

The utility model discloses a kind of vehicle-mounted shock-absorbing capacitors, including capacitor body and the fixing device of fixed capacitor body;The capacitor body includes aluminum shell, core package, cover plate and the outgoing terminal being set on cover plate;The fixing device includes support frame main body, the fixed clamp being set at the both ends of support frame main body, the plurality of clamping spring pieces being set at the side of support frame main body for clamping capacitor body and the multiple fixed pins being set on one of fixed clamp;Wherein, the fixed clamp at the both ends of support frame main body is respectively used for fastening the both ends of capacitor body;The plurality of clamping spring pieces staggered clamping aluminum shell surface of capacitor body;The fixed pin is used to install and fix on circuit board with fixing device.The utility model vehicle-mounted shock-absorbing capacitor can stably and firmly install and fix capacitor on circuit board, and shock-absorbing is carried out to capacitor, prevent capacitor and vehicle body resonance premature damage.

The utility model discloses a vehicle-mounted capacitor explosion-proof shock absorption device, including support body, set up in the fixed clamp of support body both ends and set up a plurality of fixed pins on one of fixed clamp, wherein, support body includes first side plate, second side plate, third side plate and fourth side plate, be provided with clamping elastic sheet on first side plate with third side plate, second side plate with fourth side plate are sealed explosion -proof baffle, first side plate, second side plate, third side plate and fourth side plate are enclosed together, form a through capacitor containing space, to accommodate capacitor body. The utility model discloses vehicle-mounted capacitor explosion-proof shock absorption device can install and fix capacitor firmly and stably on the circuit board, and the capacitor is shock -absorbed, prevents capacitor and car body resonance premature damage, and effectively restricts capacitor body, prevents capacitor internal explosion radiation impact, protects other devices on the circuit board.

An aluminum electrolytic capacitor with high ripple current resistance comprises a shell, a core bag and a sealing element. The core bag is hermetically arranged in the shell through a sealing piece; a heat dissipation plate made of graphene or copper is arranged between the bottom of the core package and the bottom of the shell; the radiating plate is contacted with the bottom of the shell; and the cathode foil in the core package extends out of the bottom of the core package and is contacted with the radiating plate. According to the utility model, because the heat conduction coefficient of the heat dissipation plate made of graphene or copper is high, the heat generated in the core package can be quickly transmitted to the shell through the cathode foil, so that the purpose of heat dissipation is achieved, and the ripple current resistance of the product is improved.

A wet capacitor is provided, and the use of an insulation fluid composition in such a capacitor. The capacitor comprises a package of a metal foil and a polymeric insulating film, or of a metallized polymeric film, wherein the insulation composition comprises a synthetic or natural aromatic oil and a polymer. The insulation composition is configured to undergo a thermo-reversible oil-to-gel transition at a predefined gel-point temperature. Further, methods of producing such wet capacitors are provided, optionally comprising additional filling materials, and methods of sealing leaks in such capacitors.