Manufacturing method of flat coil and electronic apparatus
A flat coil, a manufacturing method thereof and an electronic apparatus are disclosed. The manufacturing method comprises: rolling a metal foil lamination onto a carrier roller to form a foil rod, wherein the metal foil lamination includes at least one layer of metal foil; sliding the foil rod from the carrier roller; slicing the foil rod into thin disks; and processing the thin disks to form at least one flat coil, wherein a pressing roller is pressed against the carrier roller via the metal foil lamination with a controlled pressing force as the metal foil lamination is rolled.
1. A method for manufacturing a flat coil, the method comprising:
rolling a metal foil lamination onto a carrier roller to form a foil rod;
sliding the foil rod from the carrier roller;
slicing the foil rod into thin disks; and
processing the thin disks to form at least one flat coil,
wherein:
the metal foil lamination includes at least one layer of metal foil, and
a pressing roller is pressed against the carrier roller via the metal foil lamination with a controlled pressing force as the metal foil lamination is rolled.
2. The method according to claim 1 , wherein the carrier roller has a starting slit, and one end of the metal foil lamination is inserted and fixed in the starting slit.
3. The method according to claim 1 , wherein the metal foil lamination includes at least two layers of metal foils.
4. The method according to claim 1 , wherein processing the thin disks further comprises:
grinding the thin disks to a preset thickness;
coating the thin disks with a passivation layer; and
forming terminals of the thin disks.
5. The method according to claim 1 , wherein the metal foil is a Cu foil.
6. The method according to claim 1 , wherein the foil rod is sliced by using at least one of blade dicing, wire cutting, and wire electrical discharging machining.
7. The method according to claim 1 , wherein the metal foil contains an insulation layer with adhesive.
8. A method for manufacturing a flat coil, the method comprising:
rolling a metal foil lamination onto a carrier roller to form a foil rod;
sliding the foil rod from the carrier roller;
slicing the foil rod into thin disks; and
processing the thin disks to form at least one flat coil,
wherein:
the metal foil lamination includes at least one layer of metal foil, and
processing the thin disks further comprises:
grinding the thin disks to a preset thickness;
coating the thin disks with a passivation layer; and
forming terminals of the thin disks.
9. The method according to claim 8 , wherein the carrier roller has a starting slit, and one end of the metal foil lamination is inserted and fixed in the starting slit.
10. The method according to claim 8 , wherein the metal foil lamination includes at least two layers of metal foils.
11. The method according to claim 8 , wherein the metal foil is a Cu foil.
12. The method according to claim 8 , wherein either:
the foil rod is sliced by using at least one of blade dicing, wire cutting, and wire electrical discharging machining; or
the metal foil contains an insulation layer with adhesive.
13. A method for manufacturing a flat coil, the method comprising:
rolling a metal foil lamination onto a carrier roller to form a foil rod;
sliding the foil rod from the carrier roller;
slicing the foil rod into thin disks; and
processing the thin disks to form at least one flat coil,
wherein:
the metal foil lamination includes at least one layer of metal foil, and
the metal foil contains an insulation layer with adhesive.
14. The method according to claim 13 , wherein the carrier roller has a starting slit, and one end of the metal foil lamination is inserted and fixed in the starting slit.
15. The method according to claim 13 , wherein the metal foil lamination includes at least two layers of metal foils.
16. The method according to claim 13 , wherein processing the thin disks further comprises:
grinding the thin disks to a preset thickness;
coating the thin disks with a passivation layer; and
forming terminals of the thin disks.
17. The method according to claim 13 , wherein either:
the metal foil is a Cu foil; or
the foil rod is sliced by using at least one of blade dicing, wire cutting, and wire electrical discharging machining.