66results about "Fixed inductances" patented technology

Connection assembly (100) for establishing an electrical connection between at least one electrical load and an electrical voltage source, comprising at least three terminal bodies (10, 11, 12) and at least three active electrical components or at least three passive electrical components (20, 21, 22), wherein the at least three terminal bodies (10, 11, 12) are provided for connection to at least three outer conductors of the voltage source, characterized by that the at least three connection bodies (10, 11, 12) are inseparably connected without tools to the at least three active electrical components or the at least three passive electrical components (20, 21, 22).

A power module has an inductor assembly and a device assembly beneath it. The inductor assembly has a magnetic core with a winding at least partially embedded. The winding has a first end and a second end exposed on a bottom surface of the inductor assembly, and the first end provides an output voltage. The device assembly has a die substrate, a first power die having a first switch, and a second power die having a second switch. The switches are electrically connected in series between an input voltage and ground reference. The second power die is embedded in the die substrate, having metal contacts on both its top side and bottom side. A first plurality of metal contacts of the first power die and the metal contacts on the top side of the second power die are electrically connected together and both to the second end of the winding.

A drive for a mobile compressor includes an EMI and transient protection circuit, a second choke, a converter, and an inverter. The EMI and transient protection circuit includes a common mode choke and at least one component, respectively. Each of the common mode chokes is configured to receive a first DC voltage and is connected to a first ground and a second ground. The at least one component is connected to a third ground. The first ground, the second ground, and the third ground are at different voltage potentials. The second choke is connected downstream of the common mode chokes. The converter is connected to an output of the second choke and is configured to collectively provide a second DC voltage to a DC bus. The inverter is connected to the DC bus and is configured to convert the second DC voltage to an AC voltage to power the mobile compressor downstream of the inverter.

Disclosed are a high power flux cancelling current steering inductor without a gap and processes of making and using same. When properly configured and wired such inductors, separate the AC component and DC component of a high power current thus allowing the smaller AC fraction of the overall current to be carried by much smaller cross-sectional litz wires. Such a high power flux cancelling current steering inductor without a gap are more efficient at avoiding core saturation compared to standard inductors, do not require core gaps, yet they are less expensive without the need for large cross-sectional litz AC carrying wires. In addition to the aforementioned benefits, such a high power flux cancelling current steering inductor without a gap permits the levels of AC and DC current to be efficiently monitored as such currents are separated.

A power module comprises a device layer and an inductor assembly. The device layer has a first surface, an opposite second surface, and two pairs of switches. The inductor assembly, whose second surface attaches to the device layer’s first surface, has a magnetic core, a first winding, a second winding, a third winding, and a fourth winding. These windings are at least partially embedded in the magnetic core and expose ends on the second surface of the inductor assembly. The first and third windings and the magnetic core form a first transformer, and the second and fourth windings and the magnetic core form a second transformer. The third and fourth windings are electrically connected in series. The first and second windings each have a horizontal section parallel to the inductor assembly’s first surface, while the third and fourth windings are under these horizontal sections.

An electronic module includes: a substrate or lead frame including a primary conductive pattern and a secondary conductive pattern; a magnetic core on or above the substrate or the lead frame and including a gap; a block coil including: a resin body on or above the substrate or the lead frame and extending on the magnetic core; a first terminal on or embedded in the resin body and connected to the primary conductive pattern; and a second terminal on or embedded in the resin body, and connected to the secondary conductive pattern; and an electronic component on the substrate or the lead frame.

An inductor array according to one or more embodiments of the invention includes: a plurality of internal conductors spaced apart from each other along a reference axis; a magnetic base body; a plurality of first external electrodes each connected to one end of associated one of the plurality of internal conductors; and a plurality of second external electrodes each connected to the other end of associated one of the plurality of internal conductors. The magnetic base body may include: a body portion having the plurality of internal conductors embedded therein; and a first high-permeability portion having a higher relative permeability than the body portion.

The present invention addresses the problem of providing an electronic component having excellent high-temperature durability. The problem is solved by an electronic component including a metal part and a film on the entirety or a portion of the metal part, in which the film comprises an amino group-modified epoxy resin or a salt thereof which is obtained by reacting a specific epoxy resin (A1) and a specific amine compound (A2).

The present invention provides a reactor in which a coil is potted inside a container having a bottom surface with which a refrigerant comes into contact, including: a bus bar which is joined to the coil such that electricity can pass therethrough; and an insulation and heat dissipation sheet (connecting part) which connects the bus bar and the container while electrically disconnecting and freely transferring heat between the bus bar and the container.

The invention provides a reactor which can efficiently cool a bus bar electrically connected with a coil even if the coil is sealed in a container by resin. The present invention is a reactor (1) in which a coil (3) is encapsulated in a container (2) having a bottom surface in contact with a refrigerant (R), the reactor (1) being characterized by comprising a bus bar (4) that can be electrically joined to the coil (3), and insulating fins (5d, a connection part) that electrically isolate the bus bar (4) from the container (2) and connect the bus bar (4) and the container (2) in a heat-transfer manner.

The present disclosure relates to the technical field of electronic power, and particularly discloses a power supply module, a power supply system and a multi-phase anti-coupling inductor. The power supply module comprises an anti-coupling inductor and a plurality of half-bridge modules arranged on the anti-coupling inductor. The anti-coupling inductor comprises a plurality of windings and a magnetic core. The plurality of windings are linear windings between a first plane and a second plane. A first magnetic core and a second magnetic core are respectively located at two ends of the windings. A magnetic core column connects the first magnetic core and the second magnetic core. The magnetic core column is a plurality of magnetic core columns, and forms a plurality of magnetic core units with the first magnetic core and the second magnetic core. The magnetic core units are arranged in correspondence with the windings. The plurality of magnetic core units all extend from the first plane to the second plane in the same direction around the corresponding windings. A closed region is arranged in one-to-one correspondence with the windings. Each half-bridge module is connected in one-to-one correspondence with the windings, and a midpoint of a bridge arm of each half-bridge module is electrically coupled with a first end of the corresponding winding.

A voltage regulation module with low thermal resistance is provided. The voltage regulation module includes a top inductor and a bottom assembly. The top inductor includes a magnetic core and a winding, and the winding includes a first winding and a second winding; the bottom assembly comprises a bottom substrate and an IPM unit. The first winding and the second winding both comprise a first pin and a second pin. The first pin and the second pin are both arranged on the bottom surface of the magnetic core and are electrically connected with the bottom substrate; and the inductor. The IPM unit and the bottom substrate are sequentially stacked. The upward thermal resistance of the voltage regulation module is reduced by optimally designing the shape structure of the inductor winding and optimizing the thermal connection between the inductor winding and the IPM unit.

A disruptive improvement in reactors is disclosed. The operating principal of this invention is to create an abrupt change, in the stored potential energy, Wm, in magnetic flux (77), via at least one localized increase (87) and at least one localized decrease (82), of the magnetic field intensity, within the boundaries of a flux loop. Since current flow through a reactor can not change abruptly, a paradox is created. To counteract mentioned paradox, at least some magnetic flux (77a) components, may be forced to jump a non- magnetic-section (88), dependent on the power level, of the frequency, components in mentioned flux. The disclosed arrangement may cause a non-linear response, resulting in advantages over a prior art reactor, (with a linear response); including: reduce reactance, reduced apparent power and increased true power factor, at the fundamental power frequency, f(fundamental). A new circuit symbol (70), for the invention, is suggested.

An electronic module includes a substrate or a lead frame including a primary conductive pattern and a secondary conductive pattern; a magnetic core that is located on or above the substrate or the lead frame and that includes a gap; a block coil including a resin body that is located on or above the substrate or the lead frame and that extends over the magnetic core, a first terminal that is on or embedded in the resin body and that is connected to the primary conductive pattern, and a second terminal that is on or embedded in the resin body and that is connected to the secondary conductive pattern; and an electronic component located on the substrate or the lead frame.

An electronic module includes: a substrate or a lead frame including a conductive pattern; a magnetic core on or above the substrate or the lead frame; a first block coil and a second block coil connected by a bridge to define a single integral assembly, each of the first block coil and the second block coil includes a resin body on or above the substrate or the lead frame and extending above the magnetic core, and a first terminal on or embedded in the resin body and connected to the conductive pattern; an electronic component on the substrate or the lead frame; and an insulating material covering the substrate or the lead frame, the magnetic core, and the bulk coil.

The magnetic core includes a middle core, a first end core, a second end core, a first side core, and a second side core. At least either the first side core or the second side core includes an inward recessed portion provided in an inward face that faces the first winding portion in a Y direction. In a plan view of the magnetic core from a Z direction, at least a portion of the inward recessed portion is overlapped with a range corresponding to the length of the first winding portion in an X direction. The X direction is a direction conforming to the axial direction of the middle core, the Y direction is a direction in which the middle core, the first side core, and the second side core are side-by-side, and the Z direction is a direction orthogonal to the X direction and the Y direction.

An inductor includes an encapsulation shell with an inductive component encapsulated inside; an input electrode exposed on a surface of the encapsulation shell and configured to receive an alternating voltage; an output electrode exposed on the surface of the encapsulation shell and configured to output a direct current voltage, where the input electrode and the output electrode are electrically isolated by the encapsulation shell; and a metal shield layer asymmetrically covering the surface of the encapsulation shell and electrically connected to the output electrode, where the metal shield layer keeps the input electrode electrically isolated from the output electrode. An inductor fabrication method and a power supply circuit containing an inductor are further provided to resolve prior-art problems such as small range and poor effect of electromagnetic shielding and potential instability of the inductor, thereby achieving a better electromagnetic shielding effect and keeping the potential of the inductor stable.

This application relates to the field of inductor technology and provides an inductor including: multiple sets of coils and a magnetic core; the magnetic core includes: an upper base plate and a lower base plate arranged parallel to each other, multiple winding posts located between the upper base plate and the lower base plate and wound with the multiple sets of coils, and at least one non-winding post disposed between the upper base plate and the lower base plate; the number of turns of the coils on at least two of the winding posts is different, and the direction of the current in the coils is opposite; each of the at least two winding posts with different numbers of turns has an air gap, and the size of the air gap on each winding post is different. The inductor in this embodiment can be configured with different ratios of magnetic loss and copper loss according to the different heat dissipation conditions of the environment in which the inductor is located, realizing differentiated design of the inductor.

A structure for wireless communication having a plurality of conductor layers, an insulator layer separating each of the conductor layers, and at least one connector connecting two of the conductor layers wherein an electrical resistance is reduced when an electrical signal is induced in the resonator at a predetermined frequency. The structure is capable of transmitting or receiving electrical energy and / or data at various near and far field magnetic coupling frequencies.

The present invention relates high power AC steering flux cancelling inductors and processes of making and using same. When properly configured and wired such inductors, separate the AC component and DC component of a high power current thus allowing the smaller AC fraction of the overall current to be carried by much smaller cross-sectional litz wires. Such high power AC steering flux cancelling inductors are more efficient at avoiding core saturation compared to standard inductors, yet they are less expensive without the need for large cross-sectional litz AC carrying wires. In addition to the aforementioned benefits, such high power AC steering flux cancelling inductor permits the levels of AC and DC current to be efficiently monitored as such currents are separated.

This power converter (100) is provided with: a housing (1) comprising a main body (10) within which a receiving space (S) is defined, and a refrigerant flow path (11) formed in the main body; coil parts (3) arranged in the receiving space and cooled by a refrigerant flowing through the refrigerant flow path; and a power conversion circuit (2) arranged in the receiving space and electrically connected to the coil parts.The coil components are provided with: a coil housing (30) made of a thermally conductive material; a coil (33) comprising a core (33a) arranged within the coil housing and a winding section (33b) in which a section between one end and the other end, which is connected to the power conversion circuit, is wound around the core; and an insulating section (36) arranged within the coil housing, which electrically insulates the coil housing from the coil. The main body has an opening section (10h) through which part of the refrigerant flow path to the receiving space opens. The coil housing is attached to the main body in such a way that it closes the opening section.

This reactor comprises: a magnetic core including a core portion which is configured in a prismatic shape; and a coil which includes a first winding portion disposed on the outer periphery of the core portion, and a second winding portion disposed on the outer periphery of the first winding portion. The first winding portion is composed of a first winding wire which is spirally wound along the outer peripheral surface of the core portion. The second winding portion is composed of a second winding wire which is wound along the outer peripheral surface of the first winding portion. The first winding wire and the second winding wire are continuous winding wires. The number of turns of the first winding portion is less than the number of turns of the second winding portion. The outer peripheral surface of the core portion includes a first plane having a plurality of groove portions arranged in a direction along the axis of the core portion. Parts of the first winding wire in each turn of the first winding portion are disposed in respective ones of the plurality of groove portions.

The disclosure relates to an inductor package (100) for a multi-phase power converter. The inductor package (100) comprises: a printed circuit board (PCB) (104); at least two coils (103) placed next to each other on the PCB (104), each coil being associated to a respective phase of the multi-phase power converter; and a non-magnetic metal armature (101) placed on the PCB (104) above and between the at least two coils (103). The non-magnetic metal armature (101) is configured to reduce a magnetic coupling between the at least two coils (103) and to dissipate heat generated by the at least two coils (103) and the PCB (104). The disclosure further relates to a multi-phase power converter (700) comprising such inductor package (100).

The application provides an integrated inductor and a power module. The integrated inductor includes a magnetic core, comprising: two winding columns disposed in parallel, each provided with an air gap; a first cover plate disposed under the two winding columns; a second cover plate disposed above the two winding columns, and opposite to the first cover plate; and a common column connected between the first and second cover plates, and disposed on one or both sides of the two winding columns; and two windings are respectively wound on the two winding columns, wherein a line frequency current component of a current flowing through each of the two windings surrounds the winding columns in the same direction, a phase of high-frequency current component of the current flowing through each of the two windings differs by 180°, and a coupling coefficient between the two windings is less than 0.1.

To provide a high-power telescoped transformer that can be used to provide efficient power conversion in an electric vehicle (EV) fast charger.SOLUTION: The telescoped transformer includes a pair of concentric toroidal magnetic cores 400, 402, where a primary winding set consisting of long windings 404a and short windings 404b wraps around both cores, and where a secondary winding set 406 wraps around one of the cores. By using a shorter total length of wire for the windings, resistive power losses are reduced, compared with conventional transformer and inductance combinations. This also results in a reduced volume of the EV fast charger. Multiple transformer modules can be coupled in series to form a high-power EV charger.SELECTED DRAWING: Figure 6

A reactor includes a core main body including an outer peripheral core, at least three cores, and at least three coils. Gaps, which can be magnetically coupled together, are formed respectively between two adjacent cores. The reactor includes a vibration suppressing section fixing at least three cores. The vibration suppressing section includes two fixing plates and a bar-like member that clamps the two fixing plates. At least one of the two fixing plates includes at least three notches extending from an edge toward the center of the fixing plate.

A power conversion device (10) is provided with a plurality of heat-generating components (12) which are arranged and mounted on a base part (11), which is a component mounting part, and a cooling part (13) which is integrally provided on the base part and cools the plurality of heat-generating components. The cooling part has a flow path forming part (15) that forms a refrigerant flow path (14) in the direction in which the plurality of heat-generating components are arranged, and fins (18) that extend from the upstream side to the downstream side in the refrigerant flow path, and the portions of the base part corresponding to the heat-generating components are heat-generating portions, respectively. In each of the heat-generating regions, the fin structures at the upstream-side heat-generating region and the downstream-side heat-generating region differ from each other, and the number of fins separated from each other in the refrigerant flow direction at the downstream-side heat-generating region is larger than the number of fins separated from each other at the upstream-side heat-generating region.

A power inductor includes windings having a first coil defining an axially extending cavity and a core have at least first and second core segments extending axially through at least a portion of the cavity. The segments are radially spaced from each other to define a molding channel. Molding is disposed in the molding channel and configured to urge the first and second core segments radially apart such that outer surfaces of the core segments are in direct contact with inner surfaces of the coil.