An induction heater for a device for heating tobacco or aromatic herbs, in particular of the heat-not-burn type. The induction heater includes at least one inductor having at least one electrically insulating layer and at least one electrically conductive track fixed to the at least one electrically insulating layer. The at least one inductor is adapted to be arranged about a metal tube in which part of a cigarette can be inserted, and the metal tube is adapted to be heated by induction by the at least one inductor.

Provided are a coil capable of further improvement in heat dissipation performance and a method for manufacturing the same. A coil includes a helical structure formed of a hollow flat conductor.

Provided are a coil capable of further improvement in heat dissipation performance and a method for manufacturing the same. A coil includes a helical structure formed of a hollow flat conductor.

The present disclosure relates to a coil assembly. According to a first embodiment of the present disclosure, there is provided a coil assembly including a coil including a multilayer film which is extended between a first longitudinal end and a second longitudinal end of the multilayer film, which are opposite to each other, and which is wound to form a plurality of loops which are substantially concentric, wherein the multilayer film includes: cut edges which are extended between the first longitudinal end and the second longitudinal end, and are opposite to each other and are substantially parallel to each other; a metal layer; and a magnetic layer disposed on the metal layer, wherein, at one or more of the first longitudinal end and the second longitudinal end of the multilayer film, the metal layer is electrically connected to a conductive terminal.

The present disclosure relates to a coil assembly. According to a first embodiment of the present disclosure, there is provided a coil assembly including a coil including a multilayer film which is extended between a first longitudinal end and a second longitudinal end of the multilayer film, which are opposite to each other, and which is wound to form a plurality of loops which are substantially concentric, wherein the multilayer film includes: cut edges which are extended between the first longitudinal end and the second longitudinal end, and are opposite to each other and are substantially parallel to each other; a metal layer; and a magnetic layer disposed on the metal layer, wherein, at one or more of the first longitudinal end and the second longitudinal end of the multilayer film, the metal layer is electrically connected to a conductive terminal.

A coil component may include a body having one surface and the other surface facing each other, and including a molded portion having a core and a cover portion disposed on the molded portion; a wound coil disposed between the molded portion and the cover portion and wound around the core; and a first accommodation groove and a second accommodation groove disposed on the one surface of the body to be spaced apart from each other, and respectively disposed outside of a region of the body corresponding to the core, wherein both end portions of the wound coil are respectively disposed in the first and second accommodation grooves, and a minimum value of a distance between the first and second accommodation grooves is greater than a diameter of the core.

A coil component may include a body having one surface and the other surface facing each other, and including a molded portion having a core and a cover portion disposed on the molded portion; a wound coil disposed between the molded portion and the cover portion and wound around the core; and a first accommodation groove and a second accommodation groove disposed on the one surface of the body to be spaced apart from each other, and respectively disposed outside of a region of the body corresponding to the core, wherein both end portions of the wound coil are respectively disposed in the first and second accommodation grooves, and a minimum value of a distance between the first and second accommodation grooves is greater than a diameter of the core.

A laminated coil and manufacturing method therefor are disclosed. The laminated coil comprises multiple lamination units formed after a base body is folded. The lamination unit comprises an opening, a first common edge, and a second common edge; opening directions of two adjacent lamination units are opposite; the lamination unit is separately jointed with two adjacent lamination units by means of the first common edge and the second common edge, so that the base body in a laminated state forms a spiral power-on path. The base body is sequentially folded to form multiple lamination units, so that the base body in the laminated state forms the spiral power-on path to improve energy efficiency of a rectangular coil. In addition, on the basis of the laminated coil structure, the manufacturing method provided is adopted, and high precision of laminated coil can be highly efficiently manufactured.

A coil component 100 includes a first coil element 111 and a second coil element 112 each formed in an angular-tubular shape and disposed in parallel by winding and laminating a single flat wire 101 in one direction with edgewise-winding between one end portion 101A and another end portion 101B and bending the wound and laminated coil into two, and includes an interconnection part 113 for connecting the both elements. The interconnection part 113 includes a coil element winding end portion side raised part 123A, a coil element winding start portion side raised part 123B, and an intermediate part 123C extended between the two raised parts 123A and 123B.

A coil component 100 includes a first coil element 111 and a second coil element 112 each formed in an angular-tubular shape and disposed in parallel by winding and laminating a single flat wire 101 in one direction with edgewise-winding between one end portion 101A and another end portion 101B and bending the wound and laminated coil into two, and includes an interconnection part 113 for connecting the both elements. The interconnection part 113 includes a coil element winding end portion side raised part 123A, a coil element winding start portion side raised part 123B, and an intermediate part 123C extended between the two raised parts 123A and 123B.