Abstract: A coil component includes a support substrate and a coil portion disposed on the support substrate, a body in which the support substrate and the coil portion are embedded, first and second lead portions extending from the coil portion and respectively exposed to a surface of the body, a surface insulating layer disposed on the surface of the body and having openings respectively exposing the first and second lead portions, and first and second external electrodes disposed on the surface insulating layer and connected to the first and second lead portions exposed through the openings. Each of the first and second external electrodes includes a first metal layer formed of a metal and in direct contact with the first and second lead portions.

Abstract: The present disclosure relates to the field of power electronics, and proposes a power conversion system, including a power cabinet, a first divider and a plurality of power modules. The power cabinet includes a first high voltage compartment and a first low voltage compartment. The first divider is arranged in the power cabinet, and extends along a height direction of the power cabinet to separate the first high voltage compartment and the first low voltage compartment. The plurality of power modules are arranged in the power cabinet, each power module includes a high voltage input terminal and a low voltage output terminal; the high voltage input terminal is arranged in the first high voltage compartment, and the low voltage output terminal is arranged in the first low voltage compartment.

Abstract: An inductor includes an air-core coil assembled with a T-shaped core and a composite magnetic material and resin mixture embedding the T-shaped core and the air-core coil. The air-core coil has: a coil member having a coil axis and first and second sides opposite to each other; and first and second leads that are integrally connected to the coil member. The first and second leads respectively have: first and second bent members at the first side; first and second ends at the second side; and first and second bottom extensions respectively connected between the first and second bent members and the first and second ends. The first and second bent members extend in a first direction parallel to the coil axis, the first and second ends extend in a second direction parallel to the coil axis, and the first and second bottom extensions extend perpendicular to the coil axis.

Abstract: A magnetic resonance imaging (MRI) coil device is provided. The device includes a first receiver coil portion, a second receiver coil portion, and a locking mechanism. The second receiver coil portion is configured to fit with the first receiver coil portion to provide a receiver coil assembly. The second receiver coil portion is moveable relative to the first receiver coil portion. The locking mechanism is configured to limit relative movement between the first receiver coil portion and the second receiver coil portion when the first receiver coil portion and the second receiver coil portion are fit together.

Abstract: The present disclosure concerns a haptic solenoid assembly for transmission of amplified vibrations to a vibrated member, the haptic solenoid assembly comprising a stationary pole comprising a casing defining a plunger-receiving cavity opening out in the casing and a coil at least partially surrounding the plunger-receiving cavity; a mobile pole comprising a mobile pole body at least partially received in the plunger-receiving cavity and displaceable therein when an electric current is provided to the coil; and a lever-mounting portion protruding outwardly from the plunger-receiving cavity and engageable to the vibrated member; and a solenoid vibration-damping system engaged to the stationary pole and at least partially surrounding the plunger-receiving cavity. The present disclosure also concerns a haptic solenoid system comprising a haptic solenoid assembly and a vibration-transmitting member connected to the lever-mounting end portion of the mobile pole and engageable to the vibrated member.

Abstract: Disclosed herein is a coil component that includes a winding core part and first and second wires wound around the winding core part. The first and second wires constitute at least three winding layers on the winding core part. The same turns of the first and second wires are positioned in mutually different winding layers over a plurality of turns.

Abstract: Disclosed herein is a coil component that includes a winding core part, and first and second wires wound around the winding core part. The first and second wires constitute at least three winding layers on the winding core part. A i-th (i is an integer equal to or larger than 1) turn, a (i+1) turn, and a (i+2) turn of each of the first and second wires are positioned in mutually different winding layers.

Abstract: A winding assembly for a transformer, in particular with a medium operating voltage of Um?79.5 kV, wherein the winding assembly includes at least one winding, which ends in a winding conductor, where the winding conductor is connected to a switching line, which is configured to interconnect the winding to other windings, and where the connection of the switching line to the winding conductor is arranged inside the winding so as to reduce the danger of partial discharges and flashovers in the high-voltage end-line region for high-temperature applications.

Abstract: A wire harness including: a plurality of wires each including a core wire whose transverse cross-sectional shape is a flat shape, and an insulating sheath covering an outer circumference of the core wire; a plurality of outer covers into which the plurality of wires are inserted respectively, wherein the outer covers are independent of each other and each have a flat tubular shape; and a clamp that is attached to an outer circumferential surface of the outer covers and that fix the outer covers to a vehicle body.

Abstract: A magnetic piece, a multilayer magnetic piece and a multilayer core with an adhesive agent of excellent saturation magnetic flux density are provided. The magnetic piece includes a soft magnetic amorphous alloy ribbon 1 and a resin layer 2 provided on at least one surface of the soft magnetic amorphous alloy ribbon. The resin layer contains a resin whose Shore D hardness is not more than 60. The resin may have a Shore D hardness of not more than 25 or may have a Shore D hardness of not less than 1.

Abstract: The invention relates to a sensor arrangement (140) for a foreign object detection device which includes a current input (142) and a current output (143), a multitude of detection cells (144.1-144.9), each comprising a sense coil and a capacitive element, forming a resonant tank. The sensor arrangement (140) further has a multitude of inputs leads (148a-148c) and a multitude of output leads (150a-150c), the total number of input and output leads being equal or smaller than the number of detection cells (144.1-144.9). Each detection cell is connected between one of the input leads (148a-148c) and one of the output leads (150a-150c), in a way that each of the detection cells (144.1-144.9) is connected to a different pair of input and output leads (148a-148c, 150a-150c).

Abstract: A linear compressor includes one spring assembly including a plurality of spring parts fixed to both side surfaces of a supporter and a rear cover and configured to support a load generated in the compressor. In addition, both side portions of the spring part are provided with fixing brackets coupled to the supporter and the rear cover, and the fixing bracket is provided with an insertion member or a bracket coupling member so that the coupling force of the spring part can be increased.

Abstract: A direct-current superimposing circuit includes differential signal lines, capacitors, a common mode choke coil, a winding-type coil component, and a DC power supply which are disposed at a circuit board. The winding-type coil component includes a core, two pairs of terminal electrodes, and two windings (a first winding and a second winding). On the end surface of a flange portion, the terminal electrodes in one of the two pairs and the terminal electrodes in the other one of the two pairs are placed to face each other across the winding center of a winding core. The winding start and winding end of the first winding are connected to the terminal electrodes in one of the two pairs. The winding start and winding end of the second winding are connected to the terminal electrodes in the other one of the two pairs.

Abstract: An electric motor having has a rotor and a stator with a stator core as well as an insulation assembly, which extend along a common longitudinal axis from a first end face to a second end face of the stator. The stator core is formed with bars arranged uniformly distributed on the circumference to accommodate conducting wires wound into coils. The insulation assembly has a first insulation element, second insulation elements, and a third insulation element. The first insulation element is arranged between conducting wires and the stator core; a respective second insulation element is arranged in an intermediate space formed between coils arranged to fit closely to one another; and the third insulation element is arranged on an inner side of the stator, the inner side pointing inward in the radial direction, in a manner so as to seal the inner side.

Abstract: A dust core includes a compact containing a soft magnetic powder and also includes a cover coat for the compact. The cover coat contains a polyamideimide-modified epoxy resin. An electric/electronic component includes the dust core, a coil, and a connection terminal connected to each end portion of the coil. At least one portion of the dust core is placed so as to be located in an induced magnetic field generated by the current flowing in the coil through the connection terminal. An electric/electronic device includes the electric/electronic component.

Abstract: An inductor includes a coil that is constituted by a conductor having a coating layer and includes a winding portion where the conductor is wound and an extended portion extended from the winding portion, a base body that envelops the coil and is constituted by a magnetic body containing magnetic powder and resin, and an outer electrode that is arranged on a surface of the base body and connected to the extended portion. The extended portion of the coil includes a conductor portion that does not have the coating layer in an end portion of the extended portion, and the conductor portion includes a first region connected to the outer electrode and a second region in contact with the magnetic body.

Abstract: The coil winding apparatus is for manufacturing a coil by winding a wire rod around a winding core rotated by a rotating mechanism, wherein the winding core has a base plate and a plurality of winding pins erected on the base plate, and a circumferential groove into which a wire rod are put is formed on the periphery of the plurality of winding pins. The rotation mechanism is provided with a rotatable rotating plate, a drive mechanism for rotating the rotating plate, and a pair of columnar members erected on the rotating plate so as to put a rotation center with between a pair of the columnar members. An inner base plate is mounted to a tip of the pair of columnar members, and the coil winding apparatus is provided with an outer winding core moving mechanism.

Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion. The base portion has at least one ridge portion at which the upper surface and a side surface are in linear contact with each other. The pair of extended portions are each disposed such that a flat surface portion connected to a flat surface portion disposed at an inner side portion of a conductive wire located at an outer peripheral portion of the wound portion is close to the ridge portion.

Abstract: A tool for arranging voice coil leadouts in a microspeaker comprises an expanding collet constructed and arranged for positioning at an interior of a bobbin having an inner diameter, the expanding collet including a hole that extends through an interior in a longitudinal direction of the expanding collet; a center pin extending through the hole of the expanding collet, the expanding collet applying a force against the inner diameter of the bobbin in response to a position of the center pin in the hole of the expanding collet relative to the interior of the expanding collet; and a forming mandrel including a hole that extends through an interior in a longitudinal direction of the forming mandrel. The expanding collet extends through the hole in, and coaxial with, the forming mandrel. The expanding collet rotates the bobbin about the longitudinal direction of the expanding collet relative to the forming mandrel to form helical leadout regions of a voice coil about the bobbin.

Abstract: A conductor (31) wound into a multiple-layered helical shape, and an insulating member (32) provided between layers of the conductor are provided.

Abstract: A method and an apparatus for compact insertion of thick wire multiphase pseudo helical wave winding into a ferromagnetic core of an electrical machine, achieving high fill factor of the core slots, resulting in better heat transfer between the winding and the core, low mass and volume, and overall higher efficiency of electrical machine. An apparatus being fully programmable and physically adaptable to wide range of electric machine dimensions, where process is automated, simple, accurate, reliable and quick, while being suitable for mass production.

Abstract: Intraocular pressure sensors, systems, and methods of use. Implantable intraocular pressure sensing devices that are hermetically sealed and adapted to wirelessly communicate with an external device. The implantable devices can include a hermetically sealed housing, the hermetically sealed housing including therein: an antenna in electrical communication with a rechargeable power source, the rechargeable power source in electrical communication with an ASIC, and the ASIC in electrical communication with a pressure sensor.

Abstract: A coil component includes an insulating substrate; a coil portion disposed on at least one surface of the insulating substrate; and a body embedding the insulating substrate and the coil portion and having an active portion in which the coil portion is disposed, and a cover portion disposed on the active portion. A ratio of a thickness (T2) of the cover portion to a thickness (T1) of the insulating substrate satisfies 3<T2/T1<6, and the thickness (T2) of the cover portion satisfies 90 ?m<T2<120 ?m.

Abstract: A stator assembly includes an annular body extending about a central axis and a plurality of stator teeth extending axially from the annular body and spaced circumferentially about the annular body. The stator assembly includes at least one conduction coil and at least one bobbin configured to support the at least one conduction coil. The at least one bobbin is coupled to a first stator tooth such that the at least one conduction coil extends about the first stator tooth. The stator assembly further includes at least one insulation member configured to couple to a second stator tooth and extend into a slot between the second stator tooth and the at least one conduction coil. The at least one insulation member includes an end wall configured to cover the distal end of the second stator tooth when the at least one insulation member is coupled to the second stator tooth.

Abstract: A powder core includes a compact including a soft magnetic powder, and an outer coating of the compact. The outer coating contains polyethersulfone. An electric or electronic component including the powder core, and an electric or electronic device having the electric or electronic component mounted therein are also provided.

Abstract: The present disclosure relates to the field of power electronics technology, and proposes a power module, including: a case and an isolating part disposed in the case; a first air duct and a second air duct stacked to each other, separated by the isolating part, and penetrated in a front-to-rear direction in the case; a high-voltage power unit; a low-voltage power unit; and a transformer, including a high-voltage portion and a low-voltage portion, wherein the high-voltage portion includes a first magnetic core and a high-voltage coil disposed on the first magnetic core, and the low-voltage portion includes a second magnetic core and a low-voltage coil disposed on the second magnetic core, wherein the high-voltage power unit and the high-voltage portion are disposed in the first air duct, and the low-voltage power unit and the low-voltage portion are disposed in the second air duct.

Abstract: [Problem] The present invention provides a brake hydraulic pressure controller capable of suppressing vibrations of the brake hydraulic pressure controller by lowering a position of center of gravity of the brake hydraulic pressure controller at the time of being mounted on a vehicle. [Means for Resolution] A brake hydraulic pressure controller for a four-wheeled motor vehicle that controls a hydraulic pressure of a brake hydraulic circuit includes: a housing; a motor mounted on a first surface of the housing; and plural electromagnetic control valves mounted on a second surface that opposes the first surface of the housing. The plural electromagnetic control valves are arranged in plural rows from a near side to a far side from a third surface that continues perpendicularly from both of the first surface and the second surface. Two circuit control valves and four booster regulators are arranged in the same row.

Abstract: A multilayer substrate includes a laminated body including thermoplastic resin layers, a conductor pattern, a level-difference eliminating through hole, and a thickness adjustment member. The conductor pattern is on a main surface of one of the resin layers and is in the laminated body. The level-difference eliminating through hole is located at a position different from the conductor pattern in a planar view of the laminated body and penetrates the resin layer in a thickness direction. The thickness adjustment member is made of the same material as the resin layers, is located in the through hole, and has a thickness greater than a thickness of the resin layer.

Abstract: Methods for fabricating wires insulated by low porosity glass coatings are provided, as are high temperature electromagnetic (EM) devices containing such wires. In embodiments, a method for fabricating a high temperature EM device includes applying a glass coating precursor material onto a wire. The glass coating precursor material contains a first plurality of glass particles having an initial softening point. After application onto the wire, the glass coating precursor material is heat treated under process conditions producing a crystallized intermediary glass coating having a modified softening point exceeding the initial softening point. The crystallized intermediary glass coating is then infiltrated with a filler glass precursor material containing a second plurality of glass particles.

Abstract: Disclosed are a method for manufacturing a coil, a coil, and an electronic device. The method includes: bonding a first side of a metal sheet onto a laser-transmitting substrate by an adhesive layer; cutting a coil pattern on a second side of the metal sheet by the laser to form a coil running through the two sides of the metal sheet on the metal sheet; bonding the second side of the metal sheet onto an adhesive tape; transmitting the laser through the laser-transmitting substrate to act on the adhesive layer to detach the laser-transmitting substrate and the adhesive layer from the first side of the metal sheet; exposing the coil pattern on the first side of the metal sheet; and forming an encapsulation layer on the coil to encapsulate the first side of the coil.

Abstract: A panel (31) for assembly into a sensing head for a metal detector comprising: a. a first layer (34) for supporting at least one sensing coil (33), b. a second layer (35) for providing electromagnetic shielding, and c. a moisture resistant barrier layer (36).

Abstract: A structure for forming inductor windings includes a first portion and a second portion of a clamshell casing. The first portion includes a first set of electrically conductive segments, a first inner carrier, and a first outer carrier. The second portion includes a second set of electrically conductive segments, a second inner carrier, and a second outer carrier. An inductor core is mountable between the first inner carrier and the first outer carrier within the first portion. A control assembly aligns and joins the first portion to the second portion of the clamshell casing such that the first set of electrically conductive segments arranged in the first pattern that correspond to first half-turns of the inductor windings, are attached to the second set of electrically conductive segments arranged in the second pattern that correspond to second half-turns of the inductor windings, to form continuous turns around the inductor core.

Abstract: A method of forming a winding for an electric machine includes forming a plurality of conductors having a substantially identical wire form with a plurality of end turns joining a plurality of slot segments, defining a first portion of the plurality of conductors as first conductors, rotating a second portion of the plurality of conductors about a central axis to mirror the first conductors, defining the second portion of the plurality of conductors as second conductors, combining select ones of the first conductors and select ones of the second conductors to form conductor pairs, and combining a plurality of conductor pairs to form a multi-conductor winding.

Abstract: A coil component manufacturing method includes embedding coils in a flat plate-shaped element body defined by a molded body including magnetic particles such that the coils are in a matrix and winding axes of the coils extend in a thickness direction of the element body, one end portion of each of the coils is exposed to one main surface of the element body, and the other end portion of each of the coils is exposed to the other main surface of the element body, forming electrode films defining input/output terminals on both main surfaces of the element body so as to make contact with one of the end portions of each of the coils, and performing segmentation into individual coil components by cutting the element body at location between the coils adjacent to each other in the thickness direction.

Abstract: A multi-phase integrated power inductor component assembly includes a plurality of conductive windings on an integrated magnetic core structure accepting each of the plurality of conductive windings in a spaced apart, non-coupled arrangement with respect to one another. The integrated magnetic core structure includes a series of magnetic gaps each being respectively centered on one of the plurality of conductive windings. The windings include surface mount terminations for connection to a circuit board.

Abstract: A button deck assembly includes a button deck having at least one mechanical pushbutton, the pushbutton includes a lens cap, a liquid-crystal display (LCD) panel, and an optical block configured to transmit images from the LCD panel for display through the lens cap, a bottom surface of the optical block is positioned on the LCD panel, an air gap is defined between a top surface of the optical block and the lens cap. The assembly also includes a printed circuit board (PCB) assembly defining a PCB aperture, the PCB aperture is sized to receive the optical block, and an elastomeric membrane defining a membrane aperture sized to receive the optical block, the optical block extends from the LCD panel through the PCB and membrane apertures, the membrane channels fluid flow to outer edges of the membrane and around the PCB assembly and the LCD panel.

Abstract: A ferromagnetic lamination, a magnetic conductive member of an electrical machine, an electrical machine having the magnetic conductive member of the electrical machine, a winding structure of an electrical machine, an electrical machine having the winding structure of the electrical machine, and an electric energy and magnetic energy conversion device are provided. The magnetic conductive member of the electrical machine includes winding slots, and multiple cavities are formed on an inner wall of each of the winding slots. With the magnetic conductive member of the electrical machine, a liquid insulating medium can be effectively retained and fixed by means of a cavity structure when an insulating treatment is performed on the magnetic conductive member of the electrical machine, and a rooted intermediate elastic base is formed at a ferromagnetic boundary after the liquid insulating medium is solidified, thereby effectively preventing the insulating medium from peeling, splitting or falling off.

Abstract: A coil component and an insulating bobbin are provided with a first insulating bobbin having a first flange portion, a first rib, and a pair of locking claw portions and a second insulating bobbin having a second flange portion, a second rib, and a pair of locking opening portions. The pair of locking claw portions and the pair of locking opening portions are locked in a state where both end portions of a coil winding portion in a coil axis direction are covered with the first and second flange portions and and the first and second ribs and are respectively fitted into first and second slits and of the coil winding portion. As a result, adequate insulation performance can be ensured and workability can be improved when a coil insulating member is assembled to the coil winding portion.

Abstract: Provided is a coil component 100 including a first coil element 111 and a second coil element 112 each formed in an angular-tubular shape and disposed in parallel, and an interconnection part 113 for connecting the both coil elements 111, 112. The interconnection part 113 is configured with a first connecting part 123A, a second connecting part 123B, an intermediate part 123C, and an inverted part 123D. The first connecting part 123A is configured with a flatwise-bending portion 123A1 and an edgewise-winding portion 123A2. The second connecting part 123B is configured with a flatwise-bending portion 123B1 and an edgewise-winding portion 123B2. The intermediate part 123C is provided to extend over a gap part 115 between the second coil element 112 and the first coil element 111 on a front end-face side without being twisted.

Abstract: The disclosure relates to a method of manufacturing an implantable defibrillation coil for a lead of an active implantable medical device, the defibrillating coil includes at least one elongate conductive coil which includes a plurality of non-contiguous turns. The method includes inserting a tube of polymeric material within the elongated conductive coil, supplying thermal energy to soften the tube, applying pressure on the assembly formed by the elongate conductive coil and causing the tube to deform the tube wall by insertion of the tube wall between the turns of the elongate conductive coil.

Abstract: The present disclosure relates to a fabrication process for a current transformer. For example, the process may include wrapping first windings around a first core half of a magnetic core of a current transformer. The process may include wrapping second windings around a second core half of the magnetic core. The magnetic core may be inserted into an overmold tool. The process may include overmolding a first overmold over the first core half of the magnetic core and a second overmold over the second core half of the magnetic core. After overmolding, the magnetic core may be cut in half.

Abstract: The present disclosure relates to a gel polymer electrolyte including an imide salt, and a lithium secondary battery including the same and having a protective film formed on a cathode tab. Disclosed are a gel polymer electrolyte that allows the production of a secondary battery having excellent quality with no corrosion of a cathode, while using, as an electrolyte, an imide-based salt effective for improvement of output quality and high-temperature storability, as well as a secondary battery including the same.

Abstract: A core body includes a central iron core, an outer peripheral iron core surrounding the central iron core, and a single hoop material wound body formed by winding a hoop material. At least three iron portions of an outer circumferential surface of the hoop material wound body are bent radially inward thereof. The central iron core includes at least three iron cores, each of which having a cut tip, is made by cutting at least three projection portions of the hoop material wound body. Each of the at least three projection portions is located between the at least three portions.

Abstract: A coil unit may include coil holding member configured to hold a coil; and a coil held by the coil holding member and formed by a conducting wire in a wound state. A direction perpendicular to a length direction of the conducting wire is a thickness direction of the coil. The coil holding member may include an abutment surface configured to abut against one end surface in the thickness direction of the coil, a convex unit protruding from the abutment surface and around which the conducting wire is wound, and a coil pressing unit extending from a front end surface of the convex unit and configured to press the other end surface in the thickness direction of the coil.

Abstract: A mother substrate that enables winding cores to be obtained in a manner in which the mother substrate is divided along x-direction division lines and y-direction division lines is prepared. Subsequently, x-direction division grooves are formed along the x-direction division lines on a first main surface of the mother substrate, y-direction division grooves are formed along the y-direction division lines on the first main surface, and shallow bottom surface exposure grooves, for exposing surfaces that are to be core portion bottom surfaces, are formed on the first main surface. The mother substrate is divided by performing a flattening process on a second main surface of the mother substrate that is opposite the first main surface until the second main surface reaches the x-direction division grooves and the y-direction division grooves to obtain the winding cores that are separated from each other.

Abstract: A winding-start receiving groove in which a winding-start lead wire of a field coil is received is formed in an inner surface of a flange of an insulation bobbin. A holder is disposed on the flange and located on a radially outer side of the winding-start receiving groove. The holder is formed with a holder groove located on an extension line of the winding-start receiving groove and extending at an angle relative to a radial direction of the insulation bobbin. The winding-start lead wire of the field coil is received in the winding-start receiving groove and the holder groove and held by the holder. This makes it possible to obtain a rotor of a rotary electrical machine with a simplified configuration at low cost not only to improve winding workability but also to enhance electrical reliability and durability.

Abstract: A coil component includes an element body having a rectangular main surface; a coil provided within the element body, wherein the coil having a lower coil portion and an upper coil portion; terminal electrodes provided at positions corresponding to corners of the main surface; extracting conductors connected within the element body to both end portions of the coil, wherein the extracting conductors extending from the end portions of the coil to terminal electrodes provided on the main surface; and a dummy electrode provided on the main surface at a position different from those of the terminal electrodes, wherein the dummy electrode is conducted to neither of the extracting conductors.

Abstract: A manufacturing apparatus of an electrical rotating machine includes a coil segment shaping section for shaping a linear wire rod with a predetermined length into a coil segment with a predetermined shape consisting of a pair of slot insertion portions extending substantially in parallel with each other and a linking portion for coupling the pair of slot insertion portions, and a coil assembling section for assembling a coil by circularly arranging the coil segments shaped in the coil segment shaping section. The coil segment shaping section and the coil assembling section are constituted to continuously perform the shaping and the assembling of the coil segment in each coil segment unit, based on control data set depending on a coil to be fabricated.

Abstract: A common-mode choke coil having; a core that extends in a predetermined direction; and first and second wires that are intertwined and wound together around the core.

Abstract: A surface mounted inductor is equipped with a coil formed by winding a conductive wire, and a formed body in which the coil is sealed with a sealing material that mainly contains metal magnetic powder and a resin. The coil is embedded so that surfaces of lead-out ends are exposed on surfaces of the formed body. The resin at portions of surfaces of the formed body where external terminals are formed is removed, and the metal magnetic powder and a plating layer forming the external terminals are joined to each other, thereby connecting the external terminals and the lead-out ends of the coil.