Disclosed herein is a coil component that includes first and second substrates, a first coil pattern formed on one surface of the first substrate, a second coil pattern formed on one surface of the second substrate, a first terminal electrode connected to one end of the first coil pattern and protruding from the first substrate, and a second terminal electrode connected to one end of the second coil pattern and protruding from the second substrate. The first and second substrates are laminated such that the first and second terminal electrodes overlap each other and are connected to each other.

A common mode inductor includes a bobbin with two windings. A first winding is positioned between a first end flange and a first offset flange. A second winding is positioned between a second end flange and a second offset flange. The windings are spaced apart by a center section without windings. A pair of E-cores, each having a pair of outer legs and a center leg, are positioned in a passageway of the bobbin such that the center leg of each E-core is surrounded by a respective one of the two windings. First and second I-bars are positioned in the center section of the bobbin between the two offset flanges. The two I-bars are positioned on opposite sides of the passageway. The two I-bars increase leakage inductance between the two windings to improve the suppression of electromagnetic interference caused by common mode noise in the two windings.

A transformer includes: an upper primary substrate (110) which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns; a lower secondary substrate (120) which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns, in which the lower secondary substrate is positioned below the upper primary substrate (110) in such a way that the lower secondary substrate comes into contact with the upper primary substrate (110) or is spaced apart from the upper primary substrate (110); and a secondary coil element (200) of a planar shape to produce an induced current by a current applied to the upper primary substrate (110) and the lower primary substrate (120).

Provided is an air conditioner capable of preventing a soldering defect when a circuit element is installed on a circuit board. The air conditioner includes a circuit board configured to form a circuit, a choke coil installed on the circuit board and having a wire wound around on a core, and a support device installed at a lower side of the choke coil to support the choke coil, and provided with a through-hole allowing the wire to pass therethrough, wherein the support device includes a support portion that protrudes from a lower surface of the support device to support the choke coil installed on the circuit board at an interval from the circuit board, the support portion disposed to be spaced apart from the through-hole in a direction away from an outer edge of the support device.

An output wire joining structure of a winding seat for a transformer or an inductor is disclosed. The winding seat includes a winding portion and a support portion. The winding portion is disposed on top of the support portion for winding a coil. Two sides of the support portion are provided with pin holders for insertion of output wires of the coil. At least one joining plate is disposed beneath the pin holders corresponding in position to the output wires. The output wires of the coil and metal pins of the pin holders are soldered to the joining plate respectively, so that the output wires and the metal pins are quickly soldered and fixed to form a connection, which has the advantages of increasing the rated current and facilitating the operation.

A transformer includes a magnetic core having an inner space, a coil unit disposed within the magnetic core and including a primary coil and a secondary coil in which layers formed with conductive patterns are laminated, and a base configured to receive the magnetic core and the coil unit. A portion of the base is inserted into and disposed in the coil unit to be interposed between an output terminal coupled to the secondary coil and the magnetic core.

The application relates to a galvanic separating apparatus, including a printed circuit board, the printed circuit board including a first soldering pad, a second soldering pad and a recess, whereby the pads are arranged on a lower side of the printed circuit board thereby defining a clearance and/or creepage distance between the pads, and the recess is arranged between the pads, a primary insulated winding layer connected to the first soldering pad and a second insulated winding layer connected to the second soldering part, whereby the winding layers are arranged on an upper side of the printed circuit board, and an insulating layer, whereby the insulating layer extends from the upper side through the recess and protrudes on the lower side beyond the printed circuit board thereby increasing the clearance and/or creepage distance.

An electrical device (1) has a terminal region (2) for connection with a printed circuit board. The terminal region (2) has a stranded wire (3) and an enclosure piece (4) surrounding the stranded wire (3). The enclosure piece (4) is connected with the stranded wire (3) for example by thermal diffusion bonding.

A coil body with a hollow housing body is provided that has on a first side an opening for the intake of a coil into the housing body along an inserting direction and a housing wall that extends between the first side of the housing body and a second side that is located opposite. The coil body further comprises multiple electric contacts and a plurality of guiding grooves that are disposed along the housing wall and that are each formed for guiding of a connection wire in order to connect a coil, which has been absorbed by the housing body, to the contacts. The contacts are thereby disposed on the second side on the housing body.

An adapter is provided and having a circuit board, primary components and secondary components installed on the circuit board, a shielding plate disposed between the primary components and the secondary components, and a transformer installed on the circuit board. The transformer has a bobbin, an iron core set assembled with the bobbin, at least one movable pin, at least one first winding, and at least one second winding. The movable pin is able to be positioned at an upper position for allowing the iron core set to be assembled with the bobbin or for allowing the first winding and the second winding to be wound onto the winding portion, and the movable pin is able to be positioned at a lower position when the transformer is installed onto the circuit board. Thereby, the adapter can be assembled in an automated process with improved assembly efficiency and high production yields.