245results about "Wound capacitors" patented technology

A capacitor provides a plurality of selectable capacitance values, by selective connection of six capacitor sections of a capacitive element each having a capacitance value. The capacitor sections are provided in a plurality of wound cylindrical capacitive elements. Two vertically stacked wound cylindrical capacitance elements may each provide three capacitor sections. There may be six separately wound cylindrical capacitive elements each providing a capacitor section. The capacitor sections have a common element terminal.

This metallized film manufacturing device comprises: a supply unit that supplies a dielectric film in a lengthwise direction; a printing roll that has a rotational axis in the width direction of the dielectric film, and that prints an insulation pattern on a surface of the dielectric film; and a deposition unit that forms a metal deposition electrode at positions, except where the insulation pattern is, on the surface of the dielectric film. The printing roll has protrusions that are formed axially extending on the outer circumferential surface of the printing roll, and that correspond to the insulation pattern. A reinforcing part is formed at one end of each protrusion in the axial direction of the protrusion.

Provided is a capacitor that is lightweight yet can reduce moisture absorption. The capacitor comprises a capacitor element and a protective film. The capacitor element has a first end-face electrode, a second end-face electrode, and an outer peripheral surface. The second end-face electrode exists at the side opposite to the first end-face electrode. The outer peripheral surface exists between the first end-face electrode and the second end-face electrode. The protective film has a first protective part, a second protective part, and a third protective part. The first protective part protects the peripheral edge part of the first end-face electrode. The second protective part protects the peripheral edge part of the second end-face electrode. The third protective part is connected to the first protective part and the second protective part, and protects the outer peripheral surface.

Method for producing a dielectric for a capacitor, method for producing a capacitor and capacitor The present application relates to a method for producing a dielectric for a capacitor, a method for producing a capacitor, and a capacitor. The method includes the production of a polymer chain from a monomer by polymerization. In this method, some repeat units in the polymer chain are functionalized with a reactive group. The reactive groups are branched from each polymer chain. Furthermore, the reactive groups are suitable for reacting with a linker molecule. The reactive groups are thus suitable for forming a covalent bond with the linker molecule. As a further method step, linker molecules are added to the polymer chain, each linker molecule having at least two chemical connection points, each of which is suitable for forming a covalent bond with a reactive group. Finally, cross-linking of the polymer chain is achieved by reaction of the linker molecules having two reactive groups.

The utility model relates to the technical field of capacitors, and discloses a low-noise capacitor for starting and operating a fan motor, which comprises a thin film A. The outer wall of the thin film A is wound with a thin film B through a winding needle, and the tail ends of the thin film A and the thin film B are provided with metal cleaning layers with specific lengths through electrode short-circuit cleaning of a winding machine. An outer wrapping film is pasted on the outer wall of the metal cleaning layer, the film A is a polypropylene film, the thickness of the film A ranges from 6 micrometers to 8 micrometers, good insulation performance can be provided, zinc-aluminum alloy is evaporated on the surface of the film A, the evaporation thickness is the square resistance value of 6-15 omega / square, the film A is used for improving the self-healing capacity and bearing higher voltage, and the film B is a polypropylene film and is used for improving the self-healing capacity and bearing higher voltage. And the heat resistance of the capacitor is enhanced. According to the utility model, by adopting a base film evaporation plasma treatment technical means, the problems that the PP film is a non-polar material, the surface tension is low, and the film layer fitting effect is poor are effectively solved.

The present invention addresses a problem of providing a polypropylene film that has excellent voltage resistance characteristics and reliability in a high-temperature environment and is suitable for capacitor applications or the like used under a high temperature and a high voltage. Provided is a polypropylene film including a cyclic olefin resin, in which in a case where a strength in a main orientation direction measured at 23°C is F(A23) and a strength in a main orientation orthogonal direction measured at 23°C is F(B23), F(A23) + F(B23) is 120 MPa or more and 1000 MPa or less, and a shrinkage rate in the main orientation direction measured at 150°C is -2.0% or more and 3.0% or less.

The present invention is a film for a capacitor or a film comprising a crystalline dicyclopentadiene ring-opening polymer hydrogenate having a crystal long period in a penetration direction of 120 angstrom or less as measured by small-angle X-ray scattering method.

The utility model discloses a film capacitor for flexible direct current power transmission, which belongs to the technical field of capacitors and comprises a shell, a plurality of capacitor cores and extraction electrodes, the shell is made of metal materials, the plurality of capacitor cores are grouped to form a plurality of capacitor core independent groups, and the extraction electrodes are arranged in the shell. Each capacitor core independent group is connected with a tinned copper plate, the lead-out electrode is provided with a laminated busbar and is connected with the tinned copper plate in a matched manner through the laminated busbar, and the plurality of capacitor core independent groups are packaged in the shell through a potting material. The thin-film capacitor can simultaneously meet the performance requirements of low self-inductance, low temperature rise, high energy density, light weight and long service life, thereby effectively improving the safety and reliability of the thin-film capacitor for flexible direct-current power transmission.

A film capacitor that includes: a dielectric resin film having a first surface and a second surface opposite each other; a first metal layer on the first surface; and a second metal layer on the second surface, wherein in a mapping image of nitrogen atoms observed by energy dispersive X-ray spectroscopy in a section of the dielectric resin film along a thickness direction of the dielectric resin film, a ratio of an area of nitrogen atom aggregation regions to an entire observation area is 35% or less.

Provided is a stretched film having high dielectric breakdown strength even under a high temperature environment of 120°C or higher, and further capable of imparting excellent withstand voltage performance to a capacitor element even under a room temperature (for example, 25°C) and a high temperature environment of 120°C or higher.　The present invention is a stretched film that contains a polypropylene-based resin, and the number of regions R1 measured by a prescribed method is 10 or more. Alternatively, the present invention is a stretched film that contains a polypropylene-based resin, and the average value of the maximum lengths of regions 2 in the thickness direction, which are measured by a prescribed method, is 10-300 nm. Alternatively, the present invention is a stretched film that contains a polypropylene-based resin, and the average value of the maximum lengths of regions 3 in a direction orthogonal to the thickness direction, which are measured by a prescribed method, is 30 nm or more.

A capacitor includes: a capacitor element that includes a first electrode disposed on one end surface of the capacitor element, a second electrode disposed on another end surface of the capacitor element, and a circumferential surface connecting the first electrode to the second electrode; a first bus bar and a second bus bar that are connected to the first electrode and the second electrode, respectively; a case that houses the capacitor element; and a filler resin in which the capacitor element, a part of the first bus bar, and a part of the second bus bar are embedded, the filler resin being filled inside the case. The circumferential surface includes a plane face. The first bus bar includes an opposing portion that has a flat-plate-shape and faces the plane face. The opposing portion includes a protrusion that protrudes toward the plane face and abuts the plane face.

A capacitor module according to the present disclosure comprises: a case that has a bottom surface and lateral surfaces; a capacitor element that has a first electrode and a second electrode; a first bus bar that is connected to the first electrode; a second bus bar that is connected to the second electrode; a cooling plate that is placed between the first bus bar and the second bus bar, is in contact with the inner sides of lateral surfaces of the case, and is in contact with at least one of the first bus bar and the second bus bar; a sealing resin that fills the inside of the case; and a locking part that locks the cooling plate and the at least one of the first bus bar and the second bus bar.

This electronic component has a first external electrode, a base body part, and a second external electrode that are disposed in order in a first direction. A direction opposite to the first direction is defined as a second direction. A direction orthogonal to the first direction is defined as an orthogonal direction. The first external electrode includes: a first external electrode body which is spaced apart from the base body part and disposed in a second direction relative to the second external electrode; and a first external electrode extension part extending in the first direction from an edge section of the first external electrode body. The second external electrode includes: a second external electrode body which is spaced apart from the base body part and disposed in the first direction relative to the first external electrode; and a second external electrode extension part extending in the second direction from an edge section of the second external electrode body. A portion of the first external electrode extension part and a portion of the second external electrode extension part constitute a pair of facing parts facing each other in the orthogonal direction. An insulating layer is provided between the pair of facing parts.

The invention discloses a feed-through capacitor with ultralow inductance, which relates to the technical field of capacitors, and comprises a capacitor core, a positive bus, a negative bus, a shell and a filler, the capacitor core is formed by continuously winding the same metallized film, and comprises a plurality of groups of positive annular belt layers and reverse annular belt layers which are coaxially and alternately distributed; insulating sleeves are arranged between the adjacent forward annular belt layers and the reverse annular belt layers, axial openings are formed in the pipe walls of the insulating sleeves, a through copper pipe is arranged in the center of the capacitor core, insulating coatings are arranged on the inner wall and the outer wall of the through copper pipe, and the positive bus and the negative bus are arranged in the through copper pipe in parallel in a penetrating mode and are separated through an insulating plate. The positive bus is conducted with all the forward annular belt layers at one end of the capacitor core, the negative bus is conducted with all the reverse annular belt layers at the other end of the capacitor core, the outer side of the capacitor core is sleeved with the shell, and the filler is poured between the capacitor core and the shell. According to the invention, the inductance of the capacitor is effectively reduced, and a more reliable solution with better performance is provided.

A capacitor module according to the present disclosure comprises a capacitor element having an end surface on which an electrode is provided, and a bus bar which has a plate-shaped main body portion arranged so as to cover the electrode, and a joint portion extending from the main body portion and joined to the electrode, wherein the joint portion is at least partially embedded in the electrode, and the joint portion is provided with a thin-walled portion that is thinner than the main body portion.

To provide a capacitor prevented from abnormal heat generation and capable of realizing low ESL. A capacitor 1 includes: a plurality of capacitor elements 10A including a first end surface electrode 12A and a second end surface electrode 13A; a first conductor 20 in contact with and electrically connected to the first end surface electrode 12A; a second conductor 30 in contact with and electrically connected to the second end surface electrode 13A; a third conductor 40 adjacent to the first conductor 20, the third conductor 40 including an embedded part 41A positioned in a first section that overlaps with the first conductor 20 and an exposed part 42A positioned in a second section separate from the first section; and a sealing resin part 50 sealing the third conductor 40 to embed the embedded part 41A and expose the exposed part 42A.

The present invention provides a capacitor module that can reduce inductance while miniaturizing the capacitor module. [Solution] The capacitor module of this disclosure comprises a capacitor element having a first electrode, a second electrode, and a side surface; a first busbar electrically connected to the first electrode; and a second busbar electrically connected to the second electrode, wherein the first busbar has a first extension, a first connection, a second extension, and a first terminal; and the second busbar has a second contact, a third extension, a second connection, a fourth extension, and a second terminal, wherein the second extension and the fourth extension are arranged to overlap at least a portion when viewed from a direction perpendicular to the planes on which the second and fourth extensions extend.

The invention relates to a mounting structure (3) for a capacitor (4) in a housing part (9). The housing part (9) comprises a bottom (5) and a cover (9C) part. The mounting structure (3) is an integral part of the bottom (5) of the housing part (9): The mounting structure (3) is at least defined by a first pair (11) and a second pair (12) of two opposing holding elements (13). The housing (2) comprises at least one pair of locking features (42) that interact with the at least one pair of extensions (40). The pair of extensions (40) limit a radial defection (DR) of the opposing holding elements (13) and thereby secure the capacitor (4) in the mounting structure (3).

Provided is a copolymer capable of suppressing coloration even after heating. A copolymer containing a constitutional unit (A) derived from 11-dicyanoethylene and a constitutional unit (B) derived from a compound represented by the following general formula (I):in which the copolymer includes the following four kinds of triad structures (U-1) to (U-4) composed of the constitutional unit (A) and the constitutional unit (B),and a total content of (U-2) and (U-3) in a total amount of the four kinds of triad structures is 9.0 mol % or less.

To reduce material and processing costs while improving fluidity of a sealing resin in a film capacitor in which a plurality of capacitor elements connected to a bus bar are sealed with the sealing resin.SOLUTION: The first bus bar 2 includes the extending portions 20b and 30b disposed between the side surface portions of the plurality of first capacitor elements 10A and the second capacitor elements 10B, and the connecting portions 23, 24, and 25 connected to the first end surface electrodes 12A and 12B of the first and second capacitor elements 10A and 10B, and the passageway 26 for the flow of the sealing resin before being cured is formed in the extending portion 20b. As a result, the uncured resins are caused to flow to both sides sandwiching the extension portion 20b via the passages 26 of the extension portion 20b. In addition, the first bus bars 2 are connected to the first end surface electrodes 10A and 10B by the connecting parts 232425 and without largely detouring around the outside of the plurality of capacitor elements 12A and 12B.SELECTED DRAWING: Figure 3

To provide a film capacitor which is manufactured with good workability without using special equipment, has high heat dissipation at the center of a capacitor element, and has a metallized film wound uniformly.SOLUTION: Film capacitor 1 includes capacitor element 10. The capacitor element 10 has a wound body 6 and a pair of end surface electrodes 7 provided on both end surfaces of the wound body 6. The wound body 6 includes the core 20 around which the preceding wound film 2 is wound, and the metallized film 5 that includes the dielectric film 3 and the metal film 4 provided on the dielectric film 3 and is wound around the core 20. The leading film 2 includes an electrically insulating film 8 and a thermally conductive film 9 provided on the film 8.SELECTED DRAWING: Figure 1

A capacitor 1 comprises: a capacitor element 10 having an element body 11 and an external electrode 12a provided on an end surface of the element body 11; a lead-out terminal 20 electrically connected to the external electrode 12a; and an exterior case 30 in which the capacitor element 10 is housed. The exterior case 30 has a bottomed cylindrical shape having an opening part 31, and includes a bottom part 32 facing the opening part 31 in a first direction D1, and a side wall part 33 extending in the first direction D1 from the bottom part 32 toward the opening part 31. The lead-out terminal 20 is led out of the opening part 31 onto an outer surface 33a of the side wall part 33 while being bent, and extends from the opening part 31 side toward the bottom part 32 side in the first direction D1. The lead-out terminal 20 has a first surface 20a facing the outer surface 33a of the side wall part 33 in a second direction D2 perpendicular to the outer surface 33a of the side wall part 33, and a second surface 20b opposite the first surface 20a in the second direction D2. The outer surface 33a of the side wall part 33 is provided with a guard part 50 facing the second surface 20b of the lead-out terminal 20 in the second direction D2.

This invention provides a capacitor module that suppresses cracking of the sealing resin even when the capacitor element expands due to moisture absorption. [Solution] The capacitor module 1 comprises a capacitor element 10 having a first external electrode 12a and a second external electrode 12b, a first busbar 20 electrically connected to the first external electrode 12a, a second busbar 30 electrically connected to the second external electrode 12b, an insulator 40 sandwiched between the first busbar and the second busbar so as to form a laminated structure together with the first busbar and the second busbar, a case 50 in which the capacitor element is housed, and a sealing resin 60 filled inside the case in which the capacitor element is embedded and the first busbar, the second busbar and the insulator are drawn out from the inside to the outside, wherein the first busbar and the insulator are locked together inside the sealing resin, and the second busbar and the insulator are locked together inside the sealing resin.

A resin composition capable of providing a film or the like that can suppress coloration even after heating is provided. Further, a molded product, a film, a conductive film, a film capacitor, a polarized material, an electrostatic induction conversion device, and a touch panel using the resin composition are provided. A resin composition including: a copolymer (A) containing a constitutional unit (a1) derived from 1,1-dicyanoethylene and a constitutional unit (a2) derived from a compound represented by the following general formula (I); and a Bronsted acidic compound (B), in which a content of the Bronsted acidic compound (B) in the resin composition is 0.1 to 95,000 ppm by mass.

The metallized film of the present invention comprises a dielectric film and a metal vapor-deposited electrode formed on the surface of the dielectric film, wherein the metal vapor-deposited electrode is arranged such that an insulating margin extending in the longitudinal direction of the dielectric film is provided at one end in the width direction of the dielectric film, the metal vapor-deposited electrode has a plurality of protrusions facing the insulating margin at an end facing the insulating margin, and the plurality of protrusions have flat portions along the extension direction of the insulating margin.

To provide a capacitor unit capable of suitably cooling a capacitor.SOLUTION: A capacitor unit includes a plurality of capacitors 30 arranged in a row and having a metallikon electrode 32A at one axial end, and a housing case in which the plurality of capacitors 30 are housed, the plurality of capacitors 30 are arranged in a direction intersecting the axial direction of the capacitors 30 with the metallikon electrode 32A facing in one direction, the housing case includes a rib interposed between two adjacent capacitors 30, and a bottom wall portion 61 of the housing case facing the metallikon electrode 32A forms a part of a refrigerant flow path R1.SELECTED DRAWING: Figure 11

A substrate-type multi-layer polymer capacitor (MLPC), including a casing, a core, and two electroplated terminals. The core is arranged in an inner cavity of the casing. The casing is formed by joining two first packaging plates and two second packaging plates. The two electroplated terminals are formed by electroplating. One of the two electroplated terminals is configured to cover one end of the casing to form an anode, and the other of the two electroplated terminals is configured to cover the other end of the casing to form a cathode electrically led out from the core. The first packaging plate includes a substrate, an electrode plate and two metal plates. The electroplated terminals are integrally sealed with the casing.

To provide a capacitor capable of improving heat dissipation from a capacitor element.SOLUTION: In the film capacitor, a plurality of capacitor elements 100 are arranged in two rows and disposed in a case such that a first electrode faces an opening of the case and a second electrode 120 faces a bottom surface portion of the case. Second bus bar 300 includes an overlapping part that is located between the opening of the case and the first electrode terminal part of the first bus bar in the filler resin and overlaps the first electrode terminal part, two electrode terminal parts 310 that are respectively connected to second electrodes 120 of capacitor elements 100 in two corresponding rows, and two first coupling parts 350 that sandwich the plurality of capacitor elements 100 from outside and connect the overlapping part and two electrode terminal parts 310.SELECTED DRAWING: Figure 3