33results 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 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 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 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.

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.

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.

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).

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.

The present invention relates high power stacked 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 stacked 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 stacked flux cancelling inductor permits the levels of AC and DC current to be efficiently monitored as such currents are separated.

The embodiment of the invention provides a power converter, and relates to the technical field of energy. The power converter comprises a shell, a power circuit and one or more inductors. The shell is used for accommodating the power circuit; the power circuit is used for converting direct current from the photovoltaic module or the energy storage battery into alternating current; the inductor is fixed relative to the position of the shell and comprises a frame magnetic core, a separation magnetic core, a winding magnetic core, a first coil and a second coil, and the separation magnetic core is located in the space defined by the frame magnetic core and divides the frame magnetic core into a first containing cavity and a second containing cavity; the first accommodating cavity is used for accommodating a winding magnetic core, and the winding magnetic core is used for winding a first coil; the second containing cavity is used for containing the second coil, and the first coil is electrically connected with the second coil. According to the technical scheme, the possibility that the inductance value of the inductor is greatly reduced can be reduced, and the inductor in an overload scene can restrain current.

A power conversion device (10) has a plurality of heat-generating components (12) mounted side by side on a base part (11), which is a component assembly part, and a cooling part (13) integrally provided on the base part, which cools the plurality of heat-generating components. The cooling part has a flow passage (15) that forms a refrigerant flow passage (14) in the direction in which the plurality of heat-generating components are arranged, and a fin (18) that extends from an upstream side to an downstream side in the refrigerant flow passage.The heat generation section on the upstream side and the heat generation section on the downstream side of the heat generation sections in the cooling section differ in terms of a fin structure, and in the heat generation section on the downstream side, the number of fins that are separated from each other in a refrigerant circulation direction is greater than that in the heat generation section on the upstream side.

The pulse power circuit (30, 31, 32) includes an inductor (55) having a hybrid core including a switch magnetic material positioned and selected to function as a magnetic switch and a damping magnetic material positioned and selected to damp energy reflections without interfering with the function of the switch magnetic material as a magnetic switch, such that the circuit can mitigate reflected energy induced resonance without significantly degrading the switching function as part of a saturable reactor inductor.

The invention relates to a filter for an electric machine. The filter comprises an inductor and a capacitor, the inductor being a coil. The coil has a plurality of windings, and each turn of the windings comprises at least one conductor designed to be flat. Due to the flat conductors of the coil, the capacitance of the filter is formed in the coil itself. In the manufacture, the surface of one conductor is arranged opposite the surface of an adjacent conductor.

A reactor core of the magnetically coupled reactor includes a first outer core portion including two first leg portions extending in a first direction and a first base portion linking the two first leg portions, a second outer core portion including two second leg portions extending in the first direction and a second base portion linking the two second leg portions, and an intermediate core portion integrally extending continuously in the first direction and connecting the first leg portions and the second leg portions, in which a first connection portion, to which the first leg portions and the intermediate core portion are connected, is positioned in which a first coil portion is wound in the first direction, and a second connection portion, to which the second leg portions and the intermediate core portion are connected, is positioned in which the second coil portion is wound in the first direction.

A shunt reactor includes a primary winding and a steel core. The steel core includes a bottom yoke, a top yoke, a first core limb, a second core limb, and a main limb. The first core limb, the second core limb and the main limb are arranged in parallel and in between the top yoke and the bottom yoke to form a support for a magnetic flux through the steel core. The primary winding is wound around the main limb. The shunt reactor further includes an auxiliary winding wound around the bottom yoke, top yoke, first core limb, or second core limb, and is configured to generate auxiliary power. The primary and the auxiliary windings are electrically insulated from the steel core and from each other. A cooling fan is configured to be driven by the auxiliary power generated by the auxiliary winding.

An inductor and a related apparatus are provided. The inductor includes an upper magnet yoke and a lower magnet yoke that are straight-shaped and are disposed in parallel. A first winding disposed on a first fiber post, and a second winding disposed on a second fiber post. The upper magnet yoke, a first upper fiber post, and a second upper fiber post are integrally molded. The lower magnet yoke, a first lower fiber post, and a second lower fiber post are integrally molded. A clockwise / counterclockwise direction of a current in the first winding is consistent with a clockwise / counterclockwise direction of a current in the second winding.

A power conversion device has heat generating components mounted to a base part, which is a component mounting part, side by side, and a cooling part that is integrally provided to the base part and cools the heat generating components. The cooling part has a flow passage formation part that forms a refrigerant flow passage in a direction in which the heat generating components are arranged, and a fin that extends from an upstream side to a downstream side in the refrigerant flow passage. The heat generating portion on the upstream side and the heat generating portion on the downstream side of the heat generating portions in the cooling part differ in fin structure, and at the heat generating portion on the downstream side, the number of fins separated from each other in a refrigerant circulation direction is larger than that at the heat generating portion on the upstream side.

The present disclosure relates to a reactor and a manufacturing method thereof. The reactor is provided with a coil, a gap being ensured between adjacent windings; a core, inserted through the coil; and a heat sink, in contact with a side surface of the coil. The heat sink is inserted between the adjacent windings of the coil. Further, the thickness of the heat sink on the outer side of the coil in the axial direction of the coil is thinner than the thickness of the heat sink between the windings. By thinning the heat sink on the outer side of the coil, which contributes little to cooling of the coil, it is possible to suppress the amount of the heat sink without reducing the cooling performance for the coil.

A coupled inductor includes a core assembly, at least two first windings, and a second winding. The core assembly includes a first core and a second core. The first core includes a first base plate, two first non-winding posts, and at least two first winding posts disposed between the two first non-winding posts. The two first non-winding posts and the first winding posts are connected to the first base plate. Each of the first windings is wound around a corresponding first winding post. The second winding covers the at least two first windings. The at least two first windings and the second winding are disposed along a first direction. A first wound direction of the at least two first windings and a second wound direction of the second winding are parallel to each other.

A magnetic core including a magnetic powder. A total area ratio of particles of the magnetic powder in a cross section of the magnetic core is 75% or more and 90% or less. An average circularity of large size particles is 0.70 or more when the large size particles are particles extracted from the particles of the magnetic powder in the cross section of the magnetic core in the order of size from the largest size until a cumulative area ratio of the extracted particles reaches a smallest area ratio exceeding 20% of the total area ratio of the particles of the magnetic powder.

Provided is a reactor including a coil and a magnetic core. The coil includes a winding portion, the number of winding portions is one, the winding portion has a rectangular tubular shape, the magnetic core is an assembly obtained by combining a first core portion and a second core portion, and the first core portion and the second core portion are constituted by compacts made of different materials.