An electrical appliance for connecting to a high voltage includes an active part, which is provided with a magnetizable core and at least two winding assemblies, each surrounding a core section of the core and having windings that are inductively coupled to one another. The active part is entirely arranged a tank, which can be filled with an insulating fluid. The tank has two end casings and a central part arranged between the end casings. The electrical appliance is compact and has a low tare weight. The central part forms a hollow body for each winding assembly, through which a respective one of the core sections extends, which is surrounded by an associated winding assembly. The hollow bodies are connected to one another on the inside and only via the internal volume of the end casings.

The present disclosure concerns a magnetic component (1), especially for a wireless charging transformer, including a magnetic core (2), at least one flat pre-wound major electrical coil (3) disposed on the magnetic core (2) and at least one minor electrical coil (4) wound around the magnetic core (2). The present disclosure also concerns a transformer (100) including the magnetic component (1) as a primary magnetic component (101).

To provide a circuit module capable of suppressing a decrease in an area for mounting an electronic component on a substrate even when a wire for shielding the electronic component is connected to the substrate. A circuit module according to the present disclosure includes a substrate, a first component mounted on the substrate and including a ground terminal on an upper surface, first wires that connect the ground terminal to the substrate, and a second component mounted on the substrate, in which overlapping first wires in plan view.

The present disclosure provides a magnetic element, including: a magnetic core with at least one magnetic column extending along a first direction; a first winding surrounding the magnetic column; a second winding at least partially surrounding the first winding; and a third winding at least partially surrounding the second winding. The number of turns of the second winding is less than or equal to the number of turns of the first winding. The number of turns of the third winding is less than or equal to the number of turns of the first winding.

The present disclosure provides a magnetic element, including: a magnetic column extending along a first direction; a first winding surrounding the magnetic column, connected to a first terminal located on a first side of the magnetic element, and the first terminal has a first projection of the first terminal on a first side surface of the magnetic element; and a second winding surrounding the magnetic column and at least partially outside the first winding, wherein the second winding has a first projection of the second winding on the first side surface of the magnetic element, the first projection of the first terminal is at least partially outside the first projection of the second winding, the second winding is a flatwise-wound winding, and the number of turns of the first winding is greater than or equal to the number of turns of the second winding.

A transformer includes iron cores and a winding structure. The iron cores are stacked on each other at intervals, and iron core gaps are formed between the iron cores, wherein relative positions between the iron core gaps are fixed. The winding structure is disposed around the iron cores and includes a plurality of coils. A position of at least one of the iron core gaps corresponds to a position of at least one of coils.

Disclosed is a design approach for intrinsically safe electromagnetic devices such as electrically actuated valves, motors, generators, or transformers intended for and capable of safe operation in explosive atmospheres or environments. The design employs a plurality of electrically insulated, intrinsically safe circuits cooperating to induce, or in the case of a generator, create a relatively large magnetic flux in the ferromagnetic core, or iron, of these devices. A method to construct such intrinsically safe devices is disclosed. These devices can be practically used in machines, mechanisms, valves, and manned or unmanned vehicles intended for safe operation in hazardous environments, for example underground coal mines or ATEX or EX classified facilities.

Disclosed is a design approach for intrinsically safe electromagnetic devices such as electrically actuated valves, motors, generators, or transformers intended for and capable of safe operation in explosive atmospheres or environments. The design employs a plurality of electrically insulated, intrinsically safe circuits cooperating to induce, or in the case of a generator, create a relatively large magnetic flux in the ferromagnetic core, or iron, of these devices. A method to construct such intrinsically safe devices is disclosed. These devices can be practically used in machines, mechanisms, valves, and manned or unmanned vehicles intended for safe operation in hazardous environments, for example underground coal mines or ATEX or EX classified facilities.

An apparatus for a transformer with an insulating divider includes a primary winding proximate to a primary magnetic core assembly and a secondary winding proximate to a secondary magnetic core assembly. The primary magnetic core assembly and the secondary magnetic core assembly are made of materials with a high magnetic permeability. The apparatus includes a divider placed between the primary and secondary magnetic core assemblies. The divider includes an electrically insulating material. The apparatus includes an electrically insulating potting material surrounding each of the magnetic core assemblies in a vicinity of the divider.

Disclosed are a transfer-molded inductor and a manufacturing method thereof. The inductor comprises a magnet formed by transfer molding with a soft magnetic colloid; and a prefabricated coil assembly comprising an air-core coil and electrode sheets connected at two ends of the air-core coil. The method comprises steps of: connecting a prefabricated air-core coil and an electrode sheet by welding to form a coil assembly, and placing the coil assembly in a cavity of a mold; performing transfer molding with a soft magnetic colloid in a gelatinous state so that the coil is entirely buried in the colloid while the electrode sheets at two ends of the air-core coil are at least partially exposed outside the colloid to serve as terminal electrodes; and performing demolding after the colloid is cured to form a magnet, and finishing the terminal electrodes to obtain the inductor.