Coil unit and electronic apparatus using the same
A coil unit includes a coil including a coil wire, a magnetic substance for receiving magnetic force lines generated by the coil, a first substrate, and a temperature detection element disposed on the first substrate.
1. A coil unit, comprising:
a coil including a coil wire;
a magnetic substance that receives magnetic lines of force generated by the coil;
a first substrate; and
a temperature detection element disposed on the first substrate, wherein:
if one surface of the coil is referred to as a transmission surface and the other surface of the coil is referred to as a non-transmission surface, the magnetic substance is disposed on a side of the non-transmission surface of the coil, and
the first substrate is disposed between the non-transmission surface of the coil and the magnetic substance, and directly contacts the magnetic substance.
2. The coil unit according to claim 1 , the coil being a flat coil formed by winding the coil wire,
the magnetic substance being a magnetic sheet, and
the first substrate being a flexible substrate.
3. The coil unit according to claim 1 , the coil being an air-core coil, and
the temperature detection element being disposed in an air-core of the air-core coil.
4. The coil unit according to claim 1 , further comprising
a second substrate having a coil housing,
a side surface of the coil housing being one of side surfaces of the second substrate,
the coil being housed in the coil housing,
a first electrode provided on the first substrate being connected to a second electrode provided on the second substrate.
5. The coil unit according to claim 4 , each of the first substrate and the second substrate having a positioning hole through which a fixture is passed at a time of assembly so that the first substrate and the second substrate are positioned.
6. The coil unit according to claim 5 ,
the magnetic sheet being a flexible material.
7. The coil unit according to claim 6 ,
the magnetic sheet contacting the coil and the first substrate.
8. The coil unit according to claim 7 , further comprising:
a protection sheet that protects at least the coil and covers both the transmission surface of the first substrate and the coil,
the protection sheet having a position hole that corresponds to a position hole on the second substrate.
9. The coil unit according to claim 1 , the coil wire being wound around the magnetic substance so that the magnetic substance is a magnetic core of the coil, and
if one surface of the magnetic substance is referred to as a transmission surface of the coil and the other surface of the magnetic substance is referred to as a non-transmission surface of the coil, the first substrate is disposed on a side of the non-transmission surface of the coil.
10. An electronic apparatus comprising
the coil unit according to claim 1 .
11. A coil unit, comprising:
a coil including a coil wire, the coil being an air-core coil and having an air-core;
a magnetic substance that receives magnetic lines of force generated by the coil;
a first substrate; and
a temperature detection element disposed on the first substrate, the temperature detection element being disposed in the air-core of the coil, wherein:
if one surface of the coil is referred to as a transmission surface and the other surface of the coil is referred to as a non-transmission surface, the magnetic substance is disposed on a side of the non-transmission surface of the coil, and
the first substrate is disposed between the non-transmission surface of the coil and the magnetic substance.