630results about "Wound capacitors" patented technology

An apparatus suitable for use in an air-conditioning system and configured to provide a plurality of selectable capacitance values includes a plurality of capacitive devices and a pressure interrupter cover assembly. Each of the capacitive devices has a first capacitor terminal and a second capacitor terminal. The pressure interrupter cover assembly includes a deformable cover, a set of capacitor cover terminals, a common cover terminal, and a set of insulation structures. The apparatus also includes a conductor configured to electrically connect the second capacitor terminal of at least one of the capacitive devices to the common cover terminal.

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.

A hard start capacitor replacement unit includes a capacitor container having a cover, a plurality of capacitors received within the container, each of said capacitors having a capacitance value, a common terminal mounted on the cover and electrically connected to a common terminal of each of said plurality of capacitors, a plurality of cover terminals mounted on the cover spaced apart from the common terminal and from each other, each cover terminal respectively electrically connected to one of the plurality of capacitors, a relay having contacts and being capable of opening and closing said contacts in response to a monitored condition of the motor, the relay having relay terminals, a fuse electrically connected to one of the relay terminals by a first wire wherein the fuse electrically disconnects the hard start capacitor replacement unit and the motor upon a failure, and a second wire electrically connecting one of the relay terminals and the motor, a third wire electrically connecting the common terminal and one of the relay terminals, a fourth wire electrically connecting one or more cover terminals to one of the relay terminals, wherein the contacts of the relay close to electrically connect one or more capacitors of the plurality of capacitors to the motor, and the contacts of the relay open to electrically disconnect the one or more capacitors of the plurality of capacitors from the motor.

A hard start capacitor replacement unit has a plurality of capacitors in a container sized to fit in existing hard start capacitor space. The capacitors are 4 metallized film capacitors wound in a single cylindrical capacitive element. The container has a common terminal and capacitors value terminals for the plurality of capacitors, which may be connected singly or in combination to provide a selected capacitance. An electronic or other relay connects the selected capacitance in parallel with a motor run capacitor. The hard start capacitor replacement unit is thereby adapted to replace a wide variety of hard start capacitors.

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.

An apparatus includes a case capable of receiving a plurality of capacitive elements, each capacitor element having at least two capacitors, and each capacitor having a capacitive value. The apparatus also includes a cover assembly with a peripheral edge secured to the case. The cover assembly includes, for each of the plurality of capacitive elements, a cover terminal that extends upwardly from the cover assembly generally at a central region of the cover assembly. Each cover terminal is connected to one of the at least two capacitors of the respective one of the plurality of capacitive elements. The cover assembly also includes, for each of the plurality of capacitive elements, a cover terminal that extends upwardly from the cover assembly at a position spaced apart from the cover terminal generally at the central region of the cover assembly.

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. A pressure interrupter cover assembly is sealingly secured to the open end of case for the elements and has a deformable cover with a centrally mounted common cover terminal and a plurality of section cover terminals mounted at spaced apart locations. A conductor frangibly connects the common element terminal of the capacitor section to the common cover terminal and conductors respectively frangibly connect the capacitor section terminals to the section cover terminals. Deformation of the cover caused by failure of the capacitor element breaks at least some of the frangible connections sufficient to disconnect the capacitive element from an electric circuit in which it is connected. A cover insulation barrier mounted on the deformable cover, has a barrier cup substantially surrounding the common cover terminal and a plurality of barrier fins each extending radially outwardly from the barrier cup, and deployed between adjacent section cover terminals.

An apparatus includes a case having an elliptical cross-section capable of receiving a plurality of capacitive elements. One or more of the capacitive elements provide at least one capacitor having a first capacitor terminal and a second capacitor terminal. The apparatus also includes a cover assembly that includes a deformable cover mountable to the case, and, a common cover terminal having a contact extending from the cover. The cover assembly also includes at least three capacitor cover terminals, each of the at least three capacitor cover terminals having at least one contact extending from the deformable cover. The deformable cover is configured to displace at least one of the at least three capacitor cover terminals upon an operative failure of at least one of the plurality of the capacitive elements. The cover assembly also includes at least four insulation structures. One of the four insulation structures is associated with one of the at least three capacitor cover terminals. The apparatus also includes a first conductor capable of electrically connecting the first capacitor terminal of a capacitor provided by one of the plurality of capacitive elements to one of the at least three capacitor cover terminals and a second conductor capable of electrically connecting the second capacitor terminal of the capacitor provided by one of the plurality of capacitive elements to the common cover terminal.

An apparatus includes a case having an elliptical cross-section capable of receiving a plurality of capacitive elements. One or more of the capacitive elements provide at least one capacitor having a first capacitor terminal and a second capacitor terminal. The apparatus also includes a cover assembly that includes a deformable cover mountable to the case, and, a common cover terminal having a contact extending from the cover. The cover assembly also includes at least three capacitor cover terminals, each of the at least three capacitor cover terminals having at least one contact extending from the deformable cover. The deformable cover is configured to displace at least one of the at least three capacitor cover terminals upon an operative failure of at least one of the plurality of the capacitive elements. The cover assembly also includes at least four insulation structures. One of the four insulation structures is associated with one of the at least three capacitor cover terminals. The apparatus also includes a first conductor capable of electrically connecting the first capacitor terminal of a capacitor provided by one of the plurality of capacitive elements to one of the at least three capacitor cover terminals and a second conductor capable of electrically connecting the second capacitor terminal of the capacitor provided by one of the plurality of capacitive elements to the common cover terminal.

An apparatus suitable for use in an air-conditioning system and configured to provide a plurality of selectable capacitance values includes a plurality of capacitive devices and a pressure interrupter cover assembly. Each of the capacitive devices has a first capacitor terminal and a second capacitor terminal. The pressure interrupter cover assembly includes a deformable cover, a set of capacitor cover terminals, a common cover terminal, and a set of insulation structures. The apparatus also includes a conductor configured to electrically connect the second capacitor terminal of at least one of the capacitive devices to the common cover terminal.

To provide a film that allows production of a capacitor exhibiting superior operability of safety functions and that maintains withstand voltage at high temperatures, thereby yielding a capacitor with high withstand voltage at high temperatures.SOLUTION: A film has at least an A layer, wherein (1) the A layer contains, based on 100 mass%, 55 mass% or more and 97 mass% or less of a polypropylene resin and 3 mass% or more and 45 mass% or less of a polymer having an alicyclic structure in a side chain, and (2) a reduced peak height Spk of at least one surface is 0.02 μm or more and 0.15 μm or less.SELECTED DRAWING: None

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.

The invention provides a capacitor core rod plug dismounting device, and belongs to the technical field of capacitor preparation, and the device comprises a strip-shaped frame which is vertical and is provided with two open ends, and the front and rear inner side surfaces are provided with guide grooves; the clamping assembly comprises two movable rods arranged on the two sides of the strip-shaped frame respectively, the axes of the two movable rods are coaxial and are perpendicular to the side face of the strip-shaped frame, and the opposite ends of the two movable rods are elastically arranged in a telescopic mode along the axes and are provided with clamping plates; the two movable rods are synchronously and oppositely arranged along the axis in a moving manner; the pair of bearing rods is horizontally arranged below the strip-shaped frame and perpendicular to the side face of the strip-shaped frame, and the two bearing rods are movably arranged in the width direction of the strip-shaped frame; the dismantling assembly comprises two pairs of top plates which are vertically arranged below the corresponding guide grooves respectively, and the top plates are movably arranged in the width direction of the strip-shaped frame and the axis direction of the movable rod; the two bearing rods respectively penetrate through the two pairs of top plates; and the transmission assembly is arranged between the movable rod and the bearing rod. The dismounting device can achieve the purpose of automatically pulling out the plug, and the production efficiency of the thin film capacitor is improved.

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.

A capacitor device (5) includes a capacitor (30), a capacitor bus bar (29), and a heat dissipation bus bar (26). One end of a capacitor bus bar (29) is electrically connected to the capacitor, the other end is electrically connected to the electrical component, and the capacitor bus bar extends in the arrangement direction of the capacitor and the electrical component. The heat dissipation bus bar (26) is provided with an end portion on the capacitor bus bar so as not to be present in the capacitor bus bar in the extending direction of the capacitor bus bar, and dissipates heat of the capacitor. Consequently, it is possible to suppress an increase in inductance of the capacitor bus bar and to improve heat dissipation of the capacitor at the same time.

An apparatus suitable for use in an air-conditioning system and configured to provide a plurality of selectable capacitance values includes a plurality of capacitive devices and a pressure interrupter cover assembly. Each of the capacitive devices has a first capacitor terminal and a second capacitor terminal. The pressure interrupter cover assembly includes a deformable cover, a set of capacitor cover terminals, a common cover terminal, and a set of insulation structures. The apparatus also includes a conductor configured to electrically connect the second capacitor terminal of at least one of the capacitive devices to the common cover terminal.

To provide a film for a capacitor, which is excellent in high-temperature dielectric breakdown strength (high-temperature BDV), which has blocking resistance, and which restrains a nucleating agent and the like from bleeding out, even when it is preserved for long periods.SOLUTION: In a multi-layered polypropylene film for a capacitor according to the present invention, an obverse side layer or a reverse side layer, which is made from a propylene polymer (Y), is provided on at least one surface of a base layer made from a propylene polymer composition containing 0.0001-0.05 mass% of a propylene homopolymer (X) and a polymeric α-crystal nucleating agent (C), and the base layer and the obverse side layer or the reverse side layer are stretched.SELECTED DRAWING: None

A system for a capacitor of an inverter of an electric vehicle. A system includes an inverter for converting direct current (DC) power from a battery to alternating current (AC) power to drive an electric machine, where the inverter includes: a capacitor assembly including: a planar busbar including a first DC busbar and a second DC busbar; a capacitor on the same side of the first DC busbar and the second DC busbar, the capacitor including a first end cap extending in a direction substantially perpendicular to a longitudinal direction of the planar busbar; and a first connection plate disposed at the first end cap to connect the capacitor to the first DC bus bar, and a second connection plate disposed at the second end cap to connect the capacitor to the second DC bus bar.

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.

A system including an inverter to convert direct current (DC) power from a battery to alternating current (AC) power to drive a motor, wherein the inverter includes: a capacitor assembly, the capacitor assembly including: a planar busbar including a first DC busbar and a second DC busbar; a capacitor on a same side of the first DC busbar and the second DC busbar, the capacitor including a first end cap extending in a direction substantially perpendicular to a longitudinal direction of the planar busbar; and a first connection plate shaped to transfer heat from the first end cap of the capacitor and the first connection plate to a first external surface.

The invention discloses a workshop field round element metallized film winding tension device and method, and the device comprises a base, a back frame assembly fixedly connected to the top of the base, a winding roller movably connected to the front surface of the back frame assembly through a bearing, a transmission assembly fixedly connected to the front side of the top of the base, and an electric control assembly fixedly connected to the right side of the back frame assembly. The left side of the back frame assembly is fixedly connected with a tension adjusting mechanism, the tension adjusting mechanism comprises a machine base, the top of the machine base is fixedly connected with a motor, the output end of the motor is fixedly connected with a screw rod, the surface of the screw rod is in threaded connection with a screw block, and the front face and the back face of the screw block are fixedly connected with first special-shaped plates. According to the winding tension device, the phenomenon that the tension cannot be changed according to the lack of workshop site'calibration 'or'calibration' in the prior art is changed, the convex rod is adopted to drive the winding roller to be adjusted upwards, the tension needed by metallized films with different production requirements can be adapted, and the machining quality of the metallized films cannot be affected.

The invention relates to a capacitive element (1) comprising: - a cylindrical casing (10) extending along a longitudinal axis (X); - a core (3) extending along the longitudinal axis (X) between an upper end (31) and a lower end (32); - a roll (2), housed inside the casing (10) and formed: o of a first film (20) provided with a first insulating portion (200) extended by a first conductive portion (201), and o of a second film (21) provided with a second insulating portion (210) extended by a second conductive portion (211), the two films (20, 21) being stacked and wound around the core (3) so that the first insulating portion (200) is in contact with the second insulating portion (210) and so that the first conductive portion (201) and the second conductive portion (211) are opposite along a longitudinal axis of the capacitive element (1), the first conductive portion (201) forming a first end of the roll, the second conductive portion (211) forming a second end of the roll, - a first metallized layer (40) formed on an upper surface of the roll at the location of the first end of the roll; - a second metallized layer (41) formed on a lower surface of the roll at the location of the second end of the roll; - two radial outlets (50, 51), one of the two radial outlets (50) being in electrical connection with the first metallized layer (40), the other of the two radial outlets (51) being in electrical connection with the second metallized layer (41), the two radial outlets (50, 51) being mounted at least partially projecting from an upper surface (100) of the casing (10), characterized in that the core (3) is made at least partially from a metal material, and has an outer surface at least partially covered with a layer of insulating material (30).

A capacitor module that includes: a plurality of capacitors each including: a first electrode and a second electrode that face each other, and a side surface joining the first electrode and the second electrode, the side surface having a pair of flat portions that face each other, and a pair of curved portions joining the pair of flat portions to each other, the plurality of capacitors being arrayed in a row such that the flat portions of adjacent capacitors face each other; at least one metal sheet arranged in any of spaces between the flat portions of the adjacent capacitors, the at least one metal sheet being in contact with the first electrode of at least one of the adjacent capacitors; a first bus-bar electrically connected to the at least one metal sheet; and a second bus-bar electrically connected to each of the second electrodes of the plurality of capacitors.

This invention discloses a metallized film and a metallized film capacitor. The metallized film includes an organic thin film layer, a high sheet resistance layer, and multiple thickened ribs. The width of the organic thin film layer is greater than the width of the high sheet resistance layer, creating an unplated area through the width difference between the organic thin film layer and the high sheet resistance layer. The high sheet resistance layer is deposited on one side of the organic thin film layer, and the multiple thickened ribs are spaced apart on the other side of the high sheet resistance layer opposite to the organic thin film layer. This effectively increases the interlayer air gap of the metallized film capacitor, prevents incomplete self-healing and short circuits due to small interlayer air gaps during self-healing, and ensures the safety of the metallized film capacitor.

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.

A capacitor roll of an intermediate circuit capacitor having a first metallization layer serving as a positive potential and a second metallization layer serving as a negative potential, and having at least one region serving as a return path for a common mode current, and an intermediate circuit capacitor having a common mode current derivation function are provided, the capacitor roll having a first metallization layer serving as a positive potential and a second metallization layer serving as a negative potential, the region comes from at least one of the metallization layers and is formed electrically isolated therefrom.