Transformer and power supply device including the same
First Claim
Patent Images
1. A transformer comprising:
- a coil assembly including a magnetic core and first and second coil parts disposed in the magnetic core; and
a base including an accommodation portion including a seating part having the coil assembly seated therein and a side wall protruding from the seating part,wherein the first coil part includes a multilayer substrate formed by stacking layers having inductor patterns formed thereon,the second coil part is disposed on at least one of upper and lower portions of the first coil part and is insulated by surrounding a conductive wire by two or more insulating papers,the second coil part has a thickness less than that of the multilayer substrate,the conductive wire and a conductive pattern formed on a layer of the first coil part constituting an inductor pattern closest to the second coil part are electrically insulated from each other and have an insulation distance based on the two or more insulating papers,the side wall of the accommodation portion has a coil outlet as a passage through which the second coil part is led out to an external surface of the accommodation portion,the transformer further comprises a first terminal portion and a second terminal portion, andthe second terminal portion includes a terminal strip supporting the second coil part led out from the accommodation portion and a fastening recess to which an end of the second coil part is fastened.
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Abstract
A transformer includes a magnetic core, a first coil unit and a second coil unit. The first coil unit is disposed within the magnetic core and includes a laminated board having layers laminated therein and conductive patterns. Respective ones of the conductive patterns are disposed on the laminated layers. The second coil unit includes a conductive wire spaced apart from the conductive patterns of the laminated board by an insulating distance. The conductive wire includes a triple-insulated wire surrounded by three sheets of insulating paper to maintain the insulating distance from the conductive patterns.
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Citations
12 Claims
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1. A transformer comprising:
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a coil assembly including a magnetic core and first and second coil parts disposed in the magnetic core; and a base including an accommodation portion including a seating part having the coil assembly seated therein and a side wall protruding from the seating part, wherein the first coil part includes a multilayer substrate formed by stacking layers having inductor patterns formed thereon, the second coil part is disposed on at least one of upper and lower portions of the first coil part and is insulated by surrounding a conductive wire by two or more insulating papers, the second coil part has a thickness less than that of the multilayer substrate, the conductive wire and a conductive pattern formed on a layer of the first coil part constituting an inductor pattern closest to the second coil part are electrically insulated from each other and have an insulation distance based on the two or more insulating papers, the side wall of the accommodation portion has a coil outlet as a passage through which the second coil part is led out to an external surface of the accommodation portion, the transformer further comprises a first terminal portion and a second terminal portion, and the second terminal portion includes a terminal strip supporting the second coil part led out from the accommodation portion and a fastening recess to which an end of the second coil part is fastened. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification