Abstract: A small reactor capable of appropriately measuring the temperature of a coil is provided. The reactor includes a coil 2 including a pair of coil elements 2a and 2b and a magnetic core including a pair of inner core portions 31 disposed in the respective coil elements 2a and 2b and outer core portions that connect the inner core portions 31 to form a closed magnetic circuit. Each of the coil elements 2a and 2b has an end face shape having a rounded corner portion 21, which is a corner portion of a rectangle that is rounded. A temperature sensor 7 is disposed in a trapezoidal space between the rounded corner portions 21 of the coil elements 2a and 2b that face each other. The temperature sensor 7 is pressed so as to contact the rounded corner portions 21 by the sensor holder portion 54 provided on an insulator, and is capable of appropriately measuring the temperature of the coil 2.

Abstract: The invention comprises an electrical apparatus and method of manufacture. The apparatus includes a substantially annular inductor comprising an inductor core composed of at least a distributed gap material. The distributed gap material includes particles of alternating layers of magnetic and non-magnetic materials separated by a gap material. The particles comprise an average layer thickness of less than about one hundred micrometers, where a majority of said layered particles comprise an average cross sectional size of less than about one millimeter. The inductor is cooled using at least one of: a thermally conductive potting material, a liquid coolant in direct contact with the inductor, a cooling line through the potting material or liquid coolant, and a chill coil in a container about the potting material and/or the liquid coolant.

Abstract: A low cost and highly consistent metallized header electronic assembly. In one embodiment, a metallized header assembly having electronic circuitry as well as terminals manufactured from an LDS polymer is disclosed. The metallized header assembly also includes electronic component receiving cavities configured to house one or more wire-wound magnetic cores. The wire leads from the wire-wound magnetic cores are electrically coupled to the terminals on the metallized header assembly via a eutectic solder using well known soldering techniques such as hand soldering, solder dipping, resistance welding, and the like. Methods of manufacturing and using the aforementioned metallized header assembly are also disclosed.

Abstract: A method of manufacturing a coil device includes inserting planar insulating sheets into a single conductor formed in a solenoidal coil shape from a direction intersecting with a winding axis direction.

Abstract: Provided is an electromagnetic pipe expanding inductor in which the formation of voids during resin impregnation is suppressed, and electromagnetic reaction forces acting on the conductor periphery and on the interface between the shaft portion and the center-side fiber layer is diminished, and thereby durability is improved and the life of the inductor is prolonged. A glass cloth tape (3) capable of being impregnated with resin is wound around the peripheral surface of a shaft portion of a bobbin (2) to a predetermined thickness, further, a conductor strand (4) coated with a glass cloth tape (6) is wound spirally in the axial direction of the bobbin (2) to form a coil. Further, a glass cloth (7) is wound around the outside of the glass cloth tape (6) to a predetermined thickness and thereafter the glass cloth tapes (3, 6) and the glass cloth (7) are impregnated with resin to unite them.

Abstract: A reactor 1? includes one coil 2, a magnetic core 3 to which the coil 2 is arranged, and a case 4 containing an assembly 10 of the coil 2 and the magnetic core 3. The magnetic core 3 includes an inner core portion 31 inserted into the coil 2, and a coupling core portion 32 disposed around the coil 2. The coupling core portion 32 is made of a mixture of magnetic powder and resin. The coil 2 is covered with the coupling core portion 32 and is enclosed within the case 4 in a sealed state. The reactor 1? includes, in an outermost surface region exposed at an opening of the case 4, a magnetic shield layer 5 made of non-magnetic powder, having smaller specific gravity than the magnetic powder and having electrical conductivity, and the resin. A small reactor capable of reducing magnetic flux leaked to the outside is thereby provided.

Abstract: A reactor 1? includes a coil 2 formed by winding a wire 2w, a magnetic core 3 that is disposed inside and outside of the coil 2 and forms a closed magnetic circuit, and a case 4 that has an opening portion and a bottom surface 40 that opposes the opening portion and that houses an assembly 10 of the coil 2 and the magnetic core 3. At least the opening portion of the case 4 side of the magnetic core 3 is formed of a molded solid body that contains magnetic powder and resin. A surface layer 5, which prevents the magnetic powder from rusting, is provided on a surface of the magnetic core 3 on the opening portion of the case 4 side. The surface layer 5 has a resin portion formed of resin similar to the resin contained in the magnetic core 3. The resin portion is formed so as to be continuous with the resin contained in the magnetic core 3 without an interface formed therebetween.

Abstract: An induction device includes a casing, a coil retainer, a coil that is disposed in the casing and retained to the coil retainer and a core that is disposed in the casing. The coil extends spirally around the core. The core and the coil retainer are fixed to the casing separately.

Abstract: An auxiliary core portion and a main core portion, including a magnet if the magnet is attached, are covered by a resin film or an elastomer film and fixed as a single assembly. In this state, a coil is attached to the assembly and a side core portion is assembled to the assembly. The auxiliary core portion and the main core portion, including the magnet if it is attached, can be supplied, as the single assembly, to an automated assembly line for ignition coils. It is not necessary to position such components on the assembly line. Thus, the workability of the automated assembly can be enhanced.

Abstract: An inductor structure includes a powder core sinter, a coil, and a coating body. The powder core sinter includes a base and a convex column. The convex column is arranged on the base, so that the powder core sinter is in inverse T-shaped. An accommodation space is formed on the base and around the convex column. The coil includes a coiling body wrapping the convex column and being arranged in the accommodation space. The coiling body includes two electrode pins extended to lateral sides of the base. The coating body includes a fillister in inverse T-shaped. The fillister accommodates the powder core sinter and the coil. The coating body fully covers the powder core sinter and the coil except the two electrode pins extended outside of the coating body. The inductor structure has high current resistance and high heat resistance, and avoids the current leakage phenomenon.

Abstract: There is provided a shield case allowing efficient power delivery while ensuring environmental resistant such as strength and waterproof and provided a contactless feed system using the shield case. A contactless feed system includes: a feed-side device installed in a fixed body; a receive-side device installed in a mobile body and fed electric power from the feed-side device in a contactless manner, and a shield case used in the feed-side device of the contactless feed system includes: a case open toward the receive-side device; a coil housed in an interior of the case; and a cover covering an opening of the case, wherein a load support member extending from a bottom surface of the case to an inner surface of the cover is provided inside the case.

Abstract: An inductor comprises a ferromagnetic core, a litz wire conductor encircling the ferromagnetic core, a housing, a bobbin, a conductive pin, and a seal assembly. The housing encloses the ferromagnetic core and the litz wire conductor. The conductive pin is conductively attached to the litz wire conductor, and extends therefrom to form an external electrical contact. The bobbin supports the litz wire conductor and positions the conductive pin in alignment with an aperture in the housing which is sealed against fluid egress by the seal assembly.

Abstract: A transformer device includes: a transformer that includes a magnetic body core and a winding; a case that houses the transformer; an external terminal that is provided in the case; a relay section that is provided in the case and to which an end portion of the winding of the transformer is connected; and a conducting wire of which one end is wound around the external terminal and bonded thereto, and another end is connected to the relay section.

Abstract: A composite isolating transformer includes a main winding rack and a support rack. The main winding rack includes two winding portions coaxially formed to hold respectively a primary coil and a secondary coil, and a separating portion between the two winding portions. The support rack includes a first support half member and a second support half member coupling together to encase at least one winding portion. The first and second support half members have respectively a first cover and a second cover to cover two lateral sides of the winding portion, respectively a first insulating portion and a second insulating portion corresponding to the separating portion and extending towards the separating section to couple together, and respectively a first isolating portion and a second isolating portion extended from the first and second insulating portions towards the winding portion to cover another two lateral sides of the winding portion.

Abstract: A dry-type network transformer has a core and coil windings insulated by a combustion-inhibiting gas. The combustion-inhibiting gas, core and coil windings are disposed within a hermetically-sealed enclosure. The combustion-inhibiting gas is air, an inert gas or a mixture of gases. The dry-type network transformer may be connected to a network protector. The network protector is further connected to a secondary network. The network protector prevents power from flowing from a secondary network to the primary side of the transformer. The dry-type network transformer is installed in a vault that is underground or at ground level. The dry-type network transformer may be suspended near the ceiling of the vault or installed at the base of the vault.

Abstract: A common mode choke coil includes a quadrilateral core 4; first and second core covers 2, 3 disposed opposite to each other on the upper and lower surfaces of the core 4 so as to cover the outer periphery of the core 4; and rectangular copper wires 8 wound on the opposite side portions of the core 4 of the first and second core covers 2, 3. The second core cover 3 is disposed on a component-mounting face. The first and second core covers 2, 3 include a pair of linear portions surrounding the corresponding opposite sides of the core 4 which linear portions constitute winding portions 5. The lower surface of the second core cover 3 has a pedestal portion 6 which protrudes more toward the component-mounting face than the winding portions 5, and extends out along the component-mounting face in a direction perpendicular to axis lines of the winding portions 5.

Abstract: A reactor that can be disposed between stacked coolers, the reactor includes a flat case, a pair of coils, and core material. The pair of coils is (i) located in the flat case, (ii) wound in opposite directions from each other, and (iii) disposed adjacent to each other in a radial direction of the coils. The core material is covering the coils in the flat case.

Abstract: The present invention relates to a housing (100) for receiving an electric component, comprising a hollow housing body (110) with an opening (OS) on one side, which is characterized by a bottom (B) underneath the opening (OS), a lid (D) above the opening (OS), and two side walls (AS1, AS2) adjacent to the opening (OS), and at least two electric contacts (120a to 120f) provided on the bottom (B) of the housing body (110) on opposite housing sides, wherein a first contact (120a) of the electric contacts (120a to 120f) is situated in the region of the opening (OS).

Abstract: A stationary induction electric apparatus includes a porcelain tube, a connection conductor, a conductor, a casing, a lead, a terminal, a spacer, an electric connection member and a first and a second insulating medium. The connection conductor is disposed at one end of the porcelain tube. The conductor is disposed in the porcelain tube, and connected to the connection conductor. The casing covers a stationary induction electric apparatus main body, and has an opening part. The lead extends from the main body to the opening part. The terminal is disposed at an end part of the lead. The spacer seals the other end of the porcelain tube and the opening part. The member includes an electrode connected to the terminal and a joint part connected to the conductor, and penetrates the spacer. The first and second insulating media are respectively filled in the porcelain tube and the casing.

Abstract: In a spark plug ignition assembly for a spark plug, an ignition coil assembly has a steel laminated core, said core having a first core portion and a second core portion, and a primary winding around the first core portion and a secondary winding around the primary winding. A spark plug connecting member is provided for connecting the coil assembly to the spark plug. At least one of the first and second core portions has a slot therein with a magnet located in the slot.

Abstract: A magnetic assembly is formed by a Printed Circuit Board (PCB) and a cover. A plurality of magnetic elements is electrically disposed on the PCB, and the magnetic elements are connected to one another through an electric circuit on the PCB. An accommodation space is formed on the cover for receiving the magnetic elements. During the manufacturing of the magnetic assembly, a cover with an appropriate space is selected according to the size, quantity, and specification type of the magnetic elements. After the two components are assembled, adhesive is injected into the cover, so that the cover and the PCB are fixedly disposed, and the elements in the accommodation space are protected. Therefore, in a process of manufacturing the magnetic assembly, covers with different accommodation spaces are selected for collocation according to requirements of the assembled electrical elements.

Abstract: A reactor 1A of the present invention includes a sleeve-like coil 2, a magnetic core 3A having an inner core portion 31 disposed inside the coil 2 and an outer core portion 32A disposed outside the coil 2 to form a closed magnetic path with the inner core portion 31, and a case 4 storing the coil 2 and the magnetic core 3A. The case 4 is made of non-magnetic metal such as aluminum, and structured by a pair of bottomed sleeve-like bottomed case pieces 41 and 42. The outer core portion 32A is a mold product (a hardened mold product) of a mixture of magnetic powder and resin, and integrally molded with the bottomed case pieces 41 and 42. Since the case 4 and the outer core portion 32A are integrally molded, they exhibit excellent adhesion, and consequently, the heat dissipating characteristic of the reactor 1A can be enhanced. Further, since the case 4 and the outer core portion 32A are integrally molded, excellent assemblability is exhibited, and consequently, excellent productivity is also achieved.

Abstract: High- or medium-voltage equipment comprising an induction-activated portion, a tank surrounding the active portion and filled with a dielectric fluid, such as oil, and passive acoustic reduction means for reducing acoustic waves coming from the active portion and propagating in the dielectric fluid. According to the invention, the passive means create an interference field that divides the propagated waves into two groups of waves of opposite phase that interfere with each other in a zone that is at a distance from the walls of the tank so as to at least limit the amplitude of the waves before they make contact with said walls. The equipment provides an effective solution for significantly reducing the noise that is propagated by the dielectric fluid medium.

Abstract: A common mode choke coil includes a quadrilateral core 4; first and second core covers 2, 3 disposed opposite to each other on the upper and lower surfaces of the core 4 so as to cover the outer periphery of the core 4; and rectangular copper wires 8 wound on the opposite side portions of the core 4 of the first and second core covers 2, 3. The second core cover 3 is disposed on a component-mounting face. The first and second core covers 2, 3 include a pair of linear portions surrounding the corresponding opposite sides of the core 4 which linear portions constitute winding portions 5. The lower surface of the second core cover 3 has a pedestal portion 6 which protrudes more toward the component-mounting face than the winding portions 5, and extends out along the component-mounting face in a direction perpendicular to axis lines of the winding portions 5.

Abstract: A reactor of the present invention includes a coil 2, a magnetic core 3 in which the coil 2 is disposed, and a case that stores a combined product 10 made up of the coil 2 and the magnetic core 3. The case includes a bottom plate portion 40 made of a metal material, and a sidewall portion that is attached to the bottom plate portion 40 to surround the combined product 10. A joining layer 42 that fixes the coil 2 is provided at the inner face of the bottom plate portion 40. The region provided with the joining layer 42 has been subjected to surface roughening treatment. When anodic oxidation treatment is carried out as the surface roughening treatment, the bottom plate portion 40 includes an anodic oxide layer 43. The surface roughening treatment increases the contact area between the bottom plate portion 40 and the joining layer 42, whereby the joining strength between the bottom plate portion 40 and the coil 2 can be enhanced.

Abstract: A reactor is disclosed. The reactor is comprised of a housing, a solenoid coil, a center columnar member, and a core. The center columnar member provides first surfaces contacting with sandwich portions of the housing, and the core is comprised of resin including magnetic powder. The coil and the center columnar member are fixed in the core. A surface roughness (Rz2) of a second surface which contacts to the core is larger than a surface roughness (Rz1) of the first surfaces. The center columnar member further provides a basis surface of which roughness (Rz3) is smaller than the Rz2 and larger than the Rz1.

Abstract: A reactor is provided with a coil, a core, and a case. The coil generates magnetic flux in response to supply of current thereto. The core is made of magnetic powder-containing resin filled in spaces inside and outside of the core. The case accommodates therein the coil and the core. The reactor is also provided with a cooling pipe (cooling member), which is arranged to be in contact with the core. A power converter is provided with semiconductor modules, a cooler, and the reactor. In the power converter, the cooler is arranged partially being in contact with the core of the reactor.

Abstract: A vibration-suppressed transformer is fixed to a base plate and includes a magnetic lower core, two or more magnetic upper cores, primary and secondary coils. The lower core is on the base plate. The upper cores are arranged face to face over the lower core. The coils are arranged between the lower and upper cores. Each upper core contacts the lower core, on an outer side of the coils, with a first gap being provided between the upper and lower cores, on an inner side of the coils. The upper cores are extended towards each other from the outer to the inner side of the coils, with a second gap being provided therebetween. The second gap is provided therein with a non-magnetic pressing member to press the lower core against the base plate, on an inner side of the coils.

Abstract: There is provided an electronic equipment including: a first case that incorporates an electronic component; a second case having a first surface that is common with a surface of the first case, a second surface that has an angle with respect to the first surface and a third surface that has an angle with respect to the second surface; and electric power receiving coils built in parts that face respectively the second surface and the third surface.

Abstract: Provided is a reactor which uses a reactor core in which J-shaped iron cores are oppositely disposed in a ring shape. In the ring shape, an axial outer circumferential part of a first coil wound around a first gap and an axial outer circumferential part of a second coil wound around a second gap overlap each other in an axial direction. Regarding four holding stay parts disposed at four corners of the reactor, the rigidity of the holding stay parts close to the first gap and the second gap is lower than the rigidity of the holding stay parts far from the first gap and the second gap.

Abstract: A corona igniter 20 includes a coil 24 with a plurality of copper windings 26 extending longitudinally along a coil center axis ac. A magnetic core 30 is disposed along the coil center axis ac between the windings 26 and includes a plurality of discrete sections 32. The discrete sections 32 are spaced axially from one another by a core gap 34 filled with a non-magnetic gap filler 78. The magnetic core 30 has a core length lm and the coil 24 has a coil length lc less than the core length lm. A coil former 62 having a former thickness tf spaces the coil 24 from the magnetic core 30. A length difference ld between the core length lm and the coil length lc is preferably equal to or greater than the former thickness tf.

Abstract: A transcranial magnetic stimulation induction coil device (“TMS coil device”) is manufactured to contain coil windings of a predetermined size and shape and fixedly positioned at a predetermined location within and orientation in relation to a casing of the TMS coil device. In one embodiment, the coil windings are encased in a casting at a predetermined location within and orientation in relation to the casting, and the casting is fixedly positioned at a predetermined location within and orientation in relation to the casing. The size and shape of the coil windings and the casing within, and the location and orientation of the coil windings in relation to each other and the casing of, the TMS coil device are known with a high level of precision, such that navigated brain stimulation can be performed with the TMS coil device with a high degree of accuracy.

Abstract: A transformer includes an enclosed tank having an interior and an enclosed radiator spaced from the tank and in fluid communication with the interior. The radiator includes two panels joined to define a substantially enclosed space. The panels have opposing faces and bottom ends. The bottom ends of the panels are joined together by a first weld and portions of the opposing faces of the panels are joined together by a plurality of second welds. The first weld and the plurality of second welds are constructed and arranged such that when an over-pressure condition occurs in the tank and thus in the radiator, the second welds will break generally uniformly permitting the panels to balloon generally uniformly, directing a rupture of the radiator to occur at the first weld, without any rupture of the tank occurring.

Abstract: A transformer assembly includes a vertical bobbin and a shrouding element. The vertical bobbin includes a first winding portion, a second winding portion, and a flange. The flange is disposed between the first winding portion and the second winding portion. The flange includes a flange edge. The shrouding element, which substantially covers the first winding portion or the second winding portion, includes a shrouding edge that is operatively coupled to the flange edge. The flange edge and the shrouding edge have at least one complementary corrugation. In one example, the flange edge includes at least one groove and the shrouding edge includes at least one protrusion that is complementary to the groove. In another example, the shrouding edge includes at least one groove and the flange edge includes at least one protrusion that is complementary to the groove.

Abstract: A device connectable to an electric power line conductor including an electrically conductive insulated wire wound at least twice. A first end of the wire is configured to be connected to a first power line conductor and a second end of the wire is configured to be connected to a second power line conductor. A housing is mountable to the wire and includes an iron core power supply transformer configured to surround the wire to power a power supply module.

Abstract: A receptacle includes an electrically insulative bottom wall, and an electrically insulative upright wall upwardly extended from the border of the bottom wall, the upright wall having a back wall portion corresponding to the rear side of the bottom wall. The bottom wall is adapted for mounting at a circuit board or electronic device to hold a transformer in such a manner that the lead wires of the primary winding of the transformer are disposed at the front side of the bottom wall; the insulated lead wires of the secondary winding of the transformer are extended over the top edge of the back wall portion and then turned downwardly and bonded to the circuit board or electronic device.

Abstract: A reactor having a good heat dissipation effect is provided. The reactor includes one coil formed by winding a wire, a magnetic core arranged inside and outside the coil and forming a closed magnetic circuit, and a case for housing an assembly of the coil and the magnetic core. An end surface of the coil has a race track shape, and the coil is housed in the case such that the axial direction of the coil is parallel to an outer bottom surface of the case. A part of an outer peripheral surface of the coil is covered with the magnetic core (outer core portion), and a remaining part thereof not covered with the magnetic core is contacted with an inner bottom surface of the case. Since a part (mainly a linear portion) of the outer peripheral surface of the coil is directly contacted with the inner bottom surface of the case, heat of the coil can be directly dissipated such that the heat is released through the case to an installation target, e.g., a water cooling base, on which the case is installed.

Abstract: In various embodiments, a lamp base element for holding a transformer is provided. The lamp base element may include a transformer chamber which holds the transformer, wherein the transformer is held completely in the transformer chamber, and wherein the contact pins of the transformer are passed through a contact-making face of the transformer chamber, which contact-making face is opposite an opening face.

Abstract: A magnetic element may include a first core member, a second core member facing the first core member along an entire outer periphery thereof, a coil, and a base shaped body on which the first core member and the second core member are placed. The base shaped body is provided with a base member and a terminal member, and the terminal member is provided with a binding terminal part, which projects outward in a first corner part of the base member and projects from the base member on a side lower than a portion of a winding frame part side of one flange part. The second core member is provided with a cutout part at a portion corresponding to the first corner part of the base member for allowing insertion of an end drawn out from the winding frame part in a state of not contacting the second core member.

Abstract: According to one embodiment, there is provided a first magnetic core, a coil and a second magnetic core. The first magnetic core includes a first magnetic core including a plurality of first core portions which are arranged with a gap to each other. The coil is wound around the first magnetic core. The second magnetic core includes at least a second core portion which is arranged in the gap between the first core portions or arranged so as to face the gap. A magnetic reluctance of the first magnetic core is lower than a magnetic reluctance of the second magnetic core.

Abstract: A reactor including an assembly of a coil, a magnetic core on which the coil is disposed, and a case that houses the assembly. The case includes an installation face, a side wall that is removably attached to the installation face and surrounds the periphery of the assembly, and a heat dissipation layer formed on the inner face of the installation face and interposed between the installation face and the installation-side face of the coil. The installation face consists of aluminum, the side wall consists of an insulating resin, and the heat dissipation layer consists of an adhesive with high thermal conductivity and excellent insulation. The installation face is separate from the side wall, making it easy to form the heat dissipation layer, and having excellent heat dissipation. The side wall consists of an insulating resin, thus reducing the gap between it and the coil.

Abstract: An electronic component has a drum-shaped core member constituted by an assembly of soft magnetic alloy grains containing iron (Fe), silicate (Si) and chromium (Cr), a coil conductive wire wound around the core member, a pair of terminal electrodes connected to ends of the coil conductive wire, and an outer sheath resin part covering the wound coil conductive wire and constituted by a magnetic powder-containing resin; wherein there is an area where only the resin material in the magnetic powder-containing resin is permeated from the surface of the core member to a specified depth.

Abstract: A system comprises a tank, a radiator connected to the tank, and a component situated within the tank and susceptible to creating increasing pressure within system when under a fault condition. The radiator is configured to directionally vent pressure under excessive pressure conditions.

Abstract: A vibration-suppressed transformer is fixed to a base plate and includes a magnetic lower core, two or more magnetic upper cores, primary and secondary coils. The lower core is on the base plate. The upper cores are arranged face to face over the lower core. The coils are arranged between the lower and upper cores. Each upper core contacts the lower core, on an outer side of the coils, with a first gap being provided between the upper and lower cores, on an inner side of the coils. The upper cores are extended towards each other from the outer to the inner side of the coils, with a second gap being provided therebetween. The second gap is provided therein with a non-magnetic pressing member to press the lower core against the base plate, on an inner side of the coils.

Abstract: A rupture resistant system comprises a tank comprising a top member, a sidewall member, and a bottom member, and a component situated within the tank and susceptible to creating increasing pressure within the tank when under a fault condition. At least one of the top, sidewall, and bottom members is connected to another of the top, sidewall, and bottom members in a manner so as to cause an increase in inner volume of the tank under increased pressure conditions.

Abstract: The present invention is directed to a reactor 1 including a combined product 10 made up of a coil member 2 and a magnetic core 3, and a case 4 storing the combined product 10. The case 4 is formed by a combination of a side wall portion 41 surrounding the combined product 10 and a bottom plate portion 40 being a member separate from the side wall portion 41. Between the bottom plate portion 40 of the case 4 and the coil member 2 (coils 2a and 2b), an insulating sheet 42 is interposed. In order to fabricate the reactor 1, the insulating sheet 42 is disposed on the bottom plate portion 40, and the combined product 10 is disposed on the insulating sheet 42. Then, the side wall portion 41 is disposed from above the combined product 10, and the side wall portion 41 and the bottom plate portion 40 are engaged with each other.

Abstract: A common mode filter and a power supply device having the same are provided. The common mode filter includes a first inductor having a first winding number, a second inductor facing the first inductor and having a second winding number, a first intermediate terminal branching from an intermediate portion of a coil of the first inductor, and a second intermediate terminal branching from an intermediate portion of a coil of the second inductor. The effects of two filters are obtained from one common mode filter and the volume is reduced, so that a light, thin, short, and short module is provided.

Abstract: The size of a status indicator for monitoring a current in a power cable is reduced by integrating a bobbin for the secondary winding with a current transformer core and integrating a circuit board including output terminals with a current transformer assembly.

Abstract: Provided is a reactor having a small size with consideration of loss reduction. A reactor 1A includes a coil 10 and a magnetic core 20. The coil 10 is formed by winding a wire. The magnetic core 20 includes an internal core portion 21 that is inserted through the coil 10 and a couple core portion 23 that is coupled to an end of the internal core portion 21 and that covers an outer periphery of the coil 10. The core portions 21 and 23 form a closed magnetic path. An interposed core portion 25 is disposed between the coil 10 and the internal core portion 21. The reactor 1A satisfies 0<S2/S1<0.15, where S1 is an inner cross-sectional area of the coil 10 and S2 is a cross-sectional area of the interposed core portion 25; and satisfies B1>B2 and B1>B3, where B1 is a saturation magnetic flux density of the internal core portion 21, B2 is a saturation magnetic flux density of the couple core portion 23, and B3 is a saturation magnetic flux density of the interposed core portion 25.

Abstract: The present invention provides a reactor with which a sensor for measuring the physical quantity (temperature or the like) of the reactor and an external apparatus can be connected to each other in a stable manner. The reactor 1A of the present invention includes a coil 2, a magnetic core 3 at which the coil 2 is disposed, and a case 4 storing a combined product 10 made up of the coil 2 and the magnetic core 3. The case 4 includes a bottom plate portion and a side wall portion 41 surrounding the combined product 10. The side wall portion 41 is made of an insulating resin. A connector hooking portion 44 on which a connector portion 72, which is coupled via a line 71 to a sensor such as a temperature sensor for measuring the physical quantity of the reactor 1A is hooked is integrally molded with the side wall portion 41 by the resin structuring the side wall portion 41.