56results about "Fixed capacitor details" patented technology

The invention relates to the technical field of capacitor films, and discloses a modified polypropylene base film for a capacitor and a preparation method of the modified polypropylene base film. The modified polypropylene base film for the capacitor is prepared from the following raw materials in parts by weight: 90 to 110 parts of polypropylene, 20 to 30 parts of hyperbranched organic silicon, 10 to 15 parts of a composite modifier, 3 to 5 parts of a compatilizer, 0.3 to 0.6 part of an antioxidant and 0.5 to 1.5 parts of a lubricant, according to the base film, polypropylene is used as a main raw material, hyperbranched organic silicon, a composite modifier, a compatilizer and other auxiliaries are added for modification, the polypropylene base film is endowed with excellent breakdown resistance, dielectric property and high temperature resistance, and the base film has wide application prospects in capacitors.

The invention relates to the technical field of materials, in particular to a polypropylene dielectric film based on graded biaxial stretching, a preparation method and application. The preparation method comprises the following steps: step 1, mixing polypropylene and a crystal regulating agent to obtain a mixture, and carrying out melt blending and hot press molding on the mixture to obtain a sheet to be stretched; wherein the polypropylene accounts for 90-99.5 parts by mass, and the crystal regulating agent accounts for 0.5-10 parts by mass; and 2, carrying out two-stage stretching on the to-be-stretched sheet obtained in the step 1 to obtain the required dielectric film, the polypropylene film material which has the characteristics of high breakdown strength and low leakage current density and is suitable for being used as a polymer-based dielectric film is prepared by utilizing a polymer biaxial stretching technology under the condition of no high-dielectric-constant filler.

The invention relates to a multi-dimensional metal-insulator-metal capacitor. Embodiments described herein relate to various structures, integrated assemblies, and memory devices. In some embodiments, an integrated assembly includes a device region. The device region includes a capacitor structure including a horizontally disposed first conductive helical structure and a horizontally disposed second conductive helical structure. In some embodiments, the second conductive helical structure is interleaved with the first conductive helical structure.

The utility model discloses a low noise capacitor, and specifically relates to the power capacitor technology field, comprising a capacitor housing, the left and right side walls of the capacitor housing are welded with connecting frames, the two connecting frames are internally provided with filter frames, the filter frames are connected with filter screens, the filter frames are symmetrically welded with two spacing seats, and the spacing seats are arranged on the two spacing seats. A connecting seat is welded on the surface of the capacitor shell, a sliding seat is movably arranged on the surface of the connecting seat in a penetrating mode, one end of the sliding seat is connected with a socket connected with the limiting seat in an inserted mode, and an extrusion spring is connected between the connecting seat and the sliding seat; through the arrangement of the structure, limiting mounting or dismounting cleaning of the filter frame and the filter screen can be rapidly and conveniently achieved, and the practicability of the device is improved.

The invention discloses a capacitor module integrating EMC boosting, fuse and four-stage EMC filtering functions, and relates to the technical field of capacitors. A capacitor module integrating EMC boosting, fuse and four-stage EMC filtering functions is used for an electric automobile motor control circuit and comprises a frame body, two capacitor cores are arranged in the frame body side by side, one capacitor core is a filtering capacitor C1, the other capacitor core is a direct-current supporting thin-film capacitor C2, and the other capacitor core is a direct-current supporting thin-film capacitor C2. An EMC (Electro Magnetic Compatibility) boosting module, a fuse module and a four-stage EMC filtering module are integrated; through the design of high integration, four-stage EMC filtering, an anti-circulation circuit, double fusing protection, heat dissipation performance optimization, easy installation and maintenance and the like, the performance, reliability and stability of the system are remarkably improved, and the overall cost is reduced.

A capacitor module is provided between a power storage body and an inverter. The capacitor module comprises a first film capacitor and a second film capacitor that are wound. The first film capacitor includes a first outer peripheral surface. The second film capacitor is connected in parallel to the first film capacitor and includes a second outer peripheral surface opposed to the first outer peripheral surface. A space x between the first outer peripheral surface and the second outer peripheral surface meets a predetermined expression.

The invention provides a space optimization type capacitor installation framework and an integrated capacitor structure, and relates to the technical field of capacitors, the space optimization type capacitor installation framework comprises a main installation frame, a lower heat dissipation frame, a middle capacitor frame and a capacitor device, the lower part of the main installation frame is horizontally and slidably connected with the lower heat dissipation frame, and the upper part of the main installation frame is horizontally and slidably connected with the middle capacitor frame; capacitors are placed on the top of the middle capacitor frame, a scissor telescopic frame is arranged on the lower portion of the main mounting frame, a rotating shaft of the scissor telescopic frame is slidably connected with the sliding groove connecting frame, a telescopic cylinder is fixedly connected to the tail of the main mounting frame, and an upper moving frame is horizontally slidably connected to the middle of the main mounting frame. When the capacitors run in a high-load mode, the shear fork telescopic frame drives the upper moving frame to reduce the distance between the capacitors at equal intervals, so that the wind speed of the surfaces of the capacitors is increased from the wind speed of an air outlet of a draught fan, and the convection heat exchange efficiency is improved. And dynamic adjustment cannot be carried out according to load working conditions.

Methods and apparatuses for use in tuning reactance are described. Open loop and closed loop control for tuning of reactances are also described. Tunable inductors and / or tunable capacitors may be used in filters, resonant circuits, matching networks, and phase shifters. Ability to control inductance and / or capacitance in a circuit leads to flexibility in operation of the circuit, since the circuit may be tuned to operate under a range of different operating frequencies.

The objective of the present invention is to provide a low-power instrument transformer having a temperature compensation function, in which a circuit whose output is adjusted according to a temperature is added to the inside of a signal converter without additionally implementing the temperature compensation function in a merge unit. The low-power instrument transformer having a temperature compensation function, according to one embodiment of the present invention, may comprise: a detection unit for detecting a voltage of an object to be measured; and a temperature compensation unit for compensating for a change, according to temperature, in voltage information measured by the detection unit, and outputting same to the merge unit.

The invention relates to a capacitor with a capacitive element arranged in a housing, wherein a gas dissipation element is arranged in or on the housing and / or wherein the capacitor has an electrolyte comprising an organic acid with a pKa value of 4.1 or higher and / or wherein the capacitor has an OMS value of 20% or higher.

For a capacitor (1), in particular an intermediate circuit capacitor for a multiphase system, comprising a first surface electrode (11) and a second surface electrode (12) opposite it at a first distance (d1), and comprising at least one capacitor structure (20) having at least one dielectric arranged between the first surface electrode (11) and the second surface electrode (12), wherein a conductor surface section (13) adjoins the first surface electrode (11), which is angled at an edge (11a) of the first surface electrode (11) in the direction of the second surface electrode (12) and at least partially covers a first side wall (21) of the capacitor structure (20),with at least one first terminal (31) for electrically contacting the first surface electrode (11) and with a second terminal (32) parallel to the first terminal (31) and separated by a second gap (d2) for electrically contacting the second surface electrode (12), wherein the first terminal (31) projects outwards at an end of the conductor surface section (13) that is directed away from the first surface electrode (11), it is proposed that the capacitor (1) has at least one electrically conductive shielding element (14) fixed to the capacitor (1), wherein the electrically conductive shielding element (14) covers a second side wall (22) of the capacitor structure (20) perpendicular to the first surface electrode (11) and the second surface electrode (12) and to the conductor surface section (13).

The utility model provides an explosion-proof metallized film, a conductive grid in a first conductive grid area and a conductive grid in a second conductive grid area are electrically connected with a grid edge part, and the grid edge part, the conductive grid in the first conductive grid area and the conductive grid in the second conductive grid area are all made of metallized filaments. A fuse is arranged at the joint of each grid in the first conductive grid area and the grid edge part, a fuse is also arranged at the joint of each grid in the second conductive grid area, and when the current value of the capacitor is normal, the first conductive grid area and the second conductive grid area are communicated with each other; when the current value of the capacitor reaches a specific threshold value, the fuses at all positions are fused due to self-heating, so that the polar plate units where the breakdown points are located are integrally isolated from the polar plates of the capacitor, large inrush current is effectively prevented from entering the breakdown points, the problems of multi-layer medium continuous breakdown and large-area burn possibly caused by continuous self-healing breakdown are avoided, and the service life of the capacitor is prolonged. And the safety of the capacitor in the self-healing process is ensured.

The application discloses a reactive macromolecular dielectric reinforcing agent, a polypropylene composite material and preparation and application thereof. The application prepares an activated macromolecular dielectric reinforcing agent through a free radical polymerization reaction of an acrylamide type polar monomer, wherein 1,3-butadiene is used for end capping; then, the activated macromolecular dielectric reinforcing agent is reacted with ethylene to obtain a reactive macromolecular dielectric reinforcing agent. The application also adds the reactive macromolecular dielectric reinforcing agent into a polypropylene polymerization reaction to prepare a polypropylene composite material with a high dielectric constant through coordination polymerization. The application macromolecularizes an amide group, can obviously improve the compatibility of a polar group amide group and non-polar polypropylene, solves the problems of precipitation, dispersion and uneven dispersion of the polar group amide group in a polypropylene matrix, endows the polypropylene composite material with the characteristics of high efficiency and durability of dielectric properties, and is suitable for being used in related products, such as thin film capacitors and lithium battery separators, which need a high dielectric constant.

The present invention relates to the technical field of capacitors, and in particular to a high thermal conductivity film capacitor of graphite material and a preparation method thereof, comprising spraying a graphene dispersion on a film surface, judging a conductive state of a coating, adjusting winding parameters to control movement of a spraying device; judging whether a graphene layer is evenly distributed, checking a dispersion concentration, or checking an actual layer thickness; judging a dispersion state of a graphene dispersion, determining a cause of an uneven distribution of a graphene layer, adjusting an ultrasonic treatment duration, or adjusting spraying parameters; adjusting spraying parameters according to whether an actual layer thickness meets a curing requirement, or drying and curing; determining a curing degree of a graphene coating, winding a film coil into a capacitor core package, or conducting a thermal stability test on the capacitor core package, adjusting a criterion for judging a conductive state of a coating and a distribution of a graphene layer, and adjusting an initial detection length; the present invention reduces a temperature of a capacitor during operation by coating a high thermal conductivity graphene material.

The utility model discloses a metallized film capacitor with a dustproof structure, which comprises a capacitor inner shell, a capacitor outer shell is arranged outside the capacitor inner shell, and the center line of the capacitor outer shell and the center line of the capacitor inner shell are on the same vertical plane. One side of the capacitor inner shell is provided with a dismounting structure used for rapid dismounting. According to the metallized film capacitor with the dustproof structure, the threaded part is arranged, when the metallized film capacitor needs to be disassembled and assembled, the threaded lantern ring is rotated to be separated from the outside of the threaded part, then the threaded lantern ring is disassembled from the outside of the positioning disc, and then the positioning disc can be disassembled from one side of the inner shell of the capacitor, so that the inner core of the capacitor can be disassembled conveniently; after inspection is completed, one side of the inner shell of the capacitor is covered with the positioning disc, then the threaded part is sleeved with the threaded lantern ring, the threaded lantern ring is screwed tightly, the positioning pressing ring is attached to one side of the positioning disc, and therefore the positioning disc is positioned through the positioning pressing ring, and the problem that rapid disassembly and assembly cannot be achieved is solved.

The invention belongs to the field of electronic functional materials and devices, and particularly relates to a lead scandium tantalate thin film with high energy storage performance and high electrocaloric performance and a preparation method of the lead scandium tantalate thin film. The lead scandium tantalate thin film is composed of a substrate, a ferroelectric thin film layer and a top electrode, and the chemical formula of the thin film is PbSc0. 5Ta0. 5O3 (PST). The preparation method is a sol-gel method, scandium nitrate, lead acetate and ethyoxyl tantalum are used as precursor raw materials, ethylene glycol monomethyl ether is used as a solvent, concentrated nitric acid is used for regulating the pH value, ethanolamine is used as a stabilizer, and the PST film is obtained after aging, glue homogenizing, drying, pyrolysis and layer-by-layer annealing. Compared with other preparation methods, the preparation process has the advantages of being simple, low in cost, high in production efficiency and the like. The energy storage density of the lead scandium tantalate thin film can reach 40.4 J / cm < 3 > in a medium electric field, and the energy storage efficiency exceeds 71.8%. The adiabatic temperature change of the lead scandium tantalate thin film in a low electric field can reach 4.75 K, and the lead scandium tantalate thin film has high temperature stability. The high energy storage characteristic of the lead scandium tantalate thin film can provide low-loss capacitance for a pulse power amplifier, a base station energy storage unit and the like, the high electrocaloric effect can provide a solid-state refrigeration solution for the heat management field of electronic devices such as chips and the like, and in addition, a new generation of multifunctional integrated devices are expected to be developed by utilizing the synergistic effect of energy storage and heat management of the lead scandium tantalate thin film.

The invention discloses a release film for a multilayer ceramic capacitor and a preparation method of the release film in the field of polymer composites.The release film is characterized in that polyethylene glycol terephthalate is adopted as a matrix, and specific spherical silicon dioxide and aluminum oxide are matched to form a bimodal nanoparticle system; and a bifunctional modifier containing perfluoroalkyl and siloxane and a hyperbranched multi-arm block polyester siloxane synergistic interface regulating agent are innovatively introduced. The preparation method comprises the key steps of nano particle surface modification, functional master batch melt blending extrusion, two-way stretching forming and the like. Through the synergistic effect of the two special modifiers, the dispersity of nanoparticles in a matrix is remarkably improved, and the interface bonding strength is enhanced, so that the obtained release film has extremely low surface roughness, excellent anti-bonding performance and good heat resistance and dimensional stability at the same time, and completely meets the requirements of a high-end multilayer ceramic capacitor preparation process.

The invention discloses a high-voltage dry-type direct-current support capacitor for rail transit, which comprises a shell, a core module, a wiring terminal assembly and filled resin, and is characterized in that the shell comprises a shell body, a shell bottom, a shell cover and a mounting bar, and the mounting bar comprises a mounting bar body and a mounting nut; the core module comprises a first core, a second core, a core inter-group insulator, a core wrapping insulator and a bottom insulator, and the first core comprises a first element group, a first outlet copper foil, a second outlet copper foil, a first bus copper bar, a second bus copper bar, a first inter-group insulator, a second inter-group insulator, a third inter-group insulator and a first insulation protection piece; the second core comprises a second element group, a third outlet copper foil, a fourth outlet copper foil, a third bus copper bar, a fourth bus copper bar, a fourth inter-group insulator, a fifth inter-group insulator, a sixth inter-group insulator and a second insulation protection piece; the wiring terminal assembly comprises an insulator, a conducting rod, a first insulating plate, a first electrode copper bar, a second insulating plate, a second electrode copper bar, a third insulating plate, a third electrode copper bar and a fixing nut. The direct-current support capacitor is simple in structure and convenient to install and use, and can meet the requirements of long-term safe, stable and reliable work of the direct-current support capacitor for rail transit.

The present disclosure relates to the technical field of passive devices, and provides a capacitive device and an electronic apparatus. The capacitive device comprises a substrate, a capacitor, and a first electrode layer. The substrate has a first side and a second side that face away from each other in the thickness direction of the substrate. The capacitor comprises a first electrode plate, a dielectric layer, and a second electrode plate which are stacked on the second side. The first electrode layer is arranged on the first side and is electrically connected to the first electrode plate. The first electrode layer is used for being connected to an external circuit by means of soldering. In this way, the connection between the capacitive device and a printed circuit board is firmer.

To provide electronic components that reduce delamination between inductor elements and capacitor elements and also reduce delamination between inductor elements and insulating layers.SOLUTION: An electronic component 1 has a capacitor element 7, an inductor element 2, and an interlayer insulating layer 62. The interlayer insulating layer has a first main surface 62a, a second main surface 62b, and via holes 610. The capacitor element is disposed on the second main surface side of the interlayer insulating layer and has a first electrode layer 71, a second electrode layer 72, and a dielectric layer 74. The inductor element is disposed on the first main surface side of the interlayer insulating layer and further has an inductor wiring including an inductor portion 210 disposed on the first main surface and a via portion 211 that connects the inductor portion and the second electrode layer through the via hole. The inductor wiring has an adhesion layer 201, a conducting layer 202 formed in contact with the adhesion layer, and a metal layer 203 formed in contact with the conducting layer. The adhesion layer continuously comes into contact with the first main surface, the inner surface of the via hole, and the second electrode layer.SELECTED DRAWING: Figure 2

The present invention discloses a capacitor module integrating EMC boosting, fuses, and four-stage EMC filtering functions, relating to the technical field of capacitors. The module, which integrates EMC boosting, fuses, and four-stage EMC filtering functions, is used in electric vehicle motor control circuits. The module comprises a frame body within which two capacitor cores are arranged side by side: one is a filter capacitor C1, and the other is a DC support film capacitor C2. The module also integrates an EMC boosting module, a fuse module, and a four-stage EMC filtering module. Through high integration, four-stage EMC filtering, anti-circulation circuitry, dual fuse protection, optimized heat dissipation, and ease of installation and maintenance, the present invention significantly improves system performance, reliability, and stability, while reducing overall costs.

The invention belongs to the field of capacitors, particularly relates to a hierarchical capacitor device, and aims to solve the existing fixing problem, the hierarchical capacitor device comprises a fixing frame, a plurality of fixing plates are mounted in the fixing frame, capacitors are mounted at the tops of the fixing plates, fixing holes are formed in the tops of the fixing plates, and fixing rods are slidably mounted in the fixing holes; one end of the fixing rod extends to the upper part of the fixing plate, the other end of the fixing rod extends to the lower part of the fixing plate, the end, extending to the upper part of the fixing plate, of the fixing rod is fixedly connected with the bottom of the capacitor, storage grooves are formed in the two sides of the fixing plate, telescopic rods are slidably mounted in the storage grooves, and one ends of the telescopic rods extend into the storage grooves. And the other end of the telescopic rod extends out of the storage groove. According to the invention, the capacitor is fixedly connected with the fixing frame through the fixing rod and the fixing plate, so that the use of screws for fixing is avoided, and the capacitor can work and be used for a long time.

The utility model discloses a microstrip line analog capacitor, which relates to the technical field of electrical elements, and is characterized by comprising a substrate for fixing, at least one through hole is arranged on the substrate in a penetrating manner, a top microstrip line and a bottom microstrip line are respectively arranged on two sides of the substrate, a connecting band is arranged in the through hole, and the top microstrip line and the bottom microstrip line are connected through the connecting band. The top layer microstrip line and the bottom layer microstrip line are connected with corresponding ends of the connecting band; the length and the width of the top layer microstrip line and the bottom layer microstrip line are both smaller than the corresponding length and the corresponding width of one side of the substrate. According to the utility model, the top-layer microstrip line and the bottom-layer microstrip line are covered on the substrate, and the top-layer microstrip line and the bottom-layer microstrip line are connected by the connecting band in the through hole to form a capacitor with a corresponding specification, so that the space occupation of the capacitor on the coupling plate is reduced, the material cost is reduced, and the index consistency of the coupling plate is improved; and the requirement of reducing the shape of the filter is met.

The invention provides a capacitor device and electronic equipment, and relates to the technical field of passive devices. The capacitor device comprises a substrate, a capacitor and a first electrode layer, the substrate is provided with a first side and a second side which are opposite in the thickness direction of the substrate, the capacitor comprises a first pole plate, a dielectric layer and a second pole plate which are arranged on the second side in a stacked mode, the first electrode layer is arranged on the first side and electrically connected with the first pole plate, and the second electrode layer is electrically connected with the dielectric layer. The first electrode layer is used for being connected with an external circuit in a welded mode. And the connection between the capacitor device and the printed circuit board is firmer. And the connection between the capacitor device and the printed circuit board is firmer.

The invention relates to the field of material technology, and in particular to a polypropylene dielectric film based on graded biaxial stretching, a preparation method and an application thereof, comprising the following steps: step 1: mixing polypropylene and a crystal regulator to obtain a mixture, and subjecting the mixture to melt blending and hot pressing to obtain a sheet to be stretched; wherein, by weight, the polypropylene is 90 to 99.5 parts and the crystal regulator is 0.5 to 10 parts; step 2: subjecting the sheet to be stretched obtained in step 1 to double-stage stretching to obtain a desired dielectric film; the invention utilizes polymer biaxial stretching technology to prepare a polypropylene film material having high breakdown strength and low leakage current density characteristics and suitable for being used as a polymer-based dielectric film without a high dielectric constant filler.

The utility model provides an insulating isolation cylinder and a film capacitor with the same, the insulating isolation cylinder comprises a cylinder body, the cylinder body comprises a bottom wall part and a side wall part, the side wall part is annular and is arranged around the bottom wall part, a core bag accommodating cavity is formed between the bottom wall part and the side wall part, the side wall part is provided with a through diversion hole, and a distance is formed between the diversion hole and the bottom wall part. According to the insulation isolation cylinder and the film capacitor with the insulation isolation cylinder, the through diversion hole is formed in the side wall part of the insulation isolation cylinder, the gap is formed between the diversion hole and the bottom wall part, and the gap between the insulation isolation cylinder and the core package can be communicated with the gap between the shell and the insulation isolation cylinder through the diversion hole; in the glue filling process, glue liquid can flow on the inner side and the outer side of the insulation isolation cylinder through the flow guide holes, the flowing path of the glue liquid is increased, and the glue filling efficiency of the thin film capacitor is improved.

The invention relates to the technical field of capacitor films, in particular to a capacitor film for high-temperature application and a preparation method thereof.The preparation method comprises the steps that modified polyimide resin, modified montmorillonite nanosheets, a cross-linking agent and an antioxidant are dispersed in N, N-dimethylacetamide, and mixed slurry is obtained after high-temperature stirring; and carrying out film casting, hot-pressing crosslinking and stripping stretching treatment on the mixed slurry to prepare the capacitor film for high-temperature application. A small amount of trifluoromethyl is introduced into a molecular chain of polyimide, and the trifluoromethyl group has strong electronegativity and chemical stability, so that the breakdown and dielectric properties of a capacitor film and the heat resistance of the film can be improved; the broadband-gap high-insulation montmorillonite nanosheet is adopted as a core, aluminum nitrate is reduced into metal aluminum particles through the dopamine polymer middle layer, the metal aluminum particles are loaded on the metal aluminum particles, and the dielectric property, the breakdown strength and the high-temperature energy storage performance of the capacitor film are improved.

The utility model discloses a thin-film capacitor and electrical equipment, and belongs to the field of thin-film capacitors. The thin-film capacitor comprises a heat dissipation plate, the heat dissipation plate is arranged outside the thin-film capacitor, the heat dissipation plate is composed of heat dissipation areas and a communication structure, and each heat dissipation area corresponds to one heating point of the thin-film capacitor, so that the heat dissipation effect of the thin-film capacitor is guaranteed, the area of the heat dissipation plate is reduced, the thin-film capacitor does not need to be completely covered by the heat dissipation plate, and the heat dissipation efficiency is improved. And materials are greatly saved. Every two adjacent heat dissipation areas are connected through one communicating structure, the communicating structures are arranged to connect the two heat dissipation areas, the two heat dissipation areas can be integrally formed during production, and production is facilitated; and meanwhile, the communication structure can conduct heat between the heat dissipation areas, heat dissipation is assisted, and the heat dissipation effect is enhanced. The width of the heat dissipation area is larger than that of the communication structure, so that the material consumption of the communication structure can be reduced, and the material is further saved.

The invention relates to an electronic device with a reduced electric field in a superficial layer and a method of manufacturing the same. A galvanic isolation device includes a metal cap layer extending over a top metal layer of a galvanic isolation module. The metal cap layer is in electrical contact with the top metal layer at a central portion of the top metal layer. The buffer layer separates the metal cap layer from the top metal layer at a peripheral portion of the top metal layer. Electric field peaks at the edges of the metal cap layer and the top metal layer are decoupled from each other by recessing side edges of the metal cap layer a distance (e.g., greater than 1 micron) from corresponding edges of the top metal layer.

The utility model discloses a single-electrode anti-aging capacitor film, which comprises a film base layer and a metal coating, the metal coating is arranged in the middle of the surface of one side of the film base layer, the surface of the other side of the film base layer is provided with an anti-aging layer, and a plurality of ultraviolet-proof particles are distributed in the anti-aging layer. Heat conduction glue layers are arranged on the film base layer and located on the two sides of the metal coating, heat collection strips and heat dissipation strips are embedded in the heat conduction glue layers, the two edges of the anti-aging layer protrude upwards to form edge sealing parts, and the edge sealing parts cover the outer edges of the heat conduction glue layers. Oxidation and ultraviolet radiation in the external environment are effectively resisted through the anti-aging layer, so that the anti-aging effect of the film base layer is enhanced, meanwhile, the heat dissipation effect of the capacitor film is enhanced through the arrangement of the heat-conducting glue layer, the heat collection strips and the heat dissipation strips, heat accumulation in the capacitor film is reduced, aging of the capacitor film is further slowed down, and the service life of the capacitor film is prolonged. And the service life of the capacitor film is prolonged, so that the use safety and stability of the capacitor are maintained.