Multilayer magnetic sheet
A multilayer magnetic sheet comprises ten or more layers of magnetic strips each formed in a band shape with a short side and a long side. The magnetic strips are aligned and arranged in a plate shape in each of the layers such that the long sides of the magnetic strips are adjacent to each other. The layers comprise first layers, in which the long sides of the adjacent magnetic strips overlap, and second layers, in which the long sides of the adjacent magnetic strips do not overlap. The first layers comprise at least two stacked layers. A position of the long side in one layer included in the second layers is separated from a position of the long side in another layer included in the second layers by 0.5 mm or more in a direction in which the short side extends.
1 . A multilayer magnetic sheet comprising
ten or more layers of magnetic strips each formed in a band shape with a short side and a long side, wherein
the magnetic strips are aligned and arranged in a plate shape in each of the layers such that the long sides of the magnetic strips are adjacent to each other,
the layers comprise first layers, in each of which the long sides of the magnetic strips adjacent to each other overlap in the same layer, and second layers, in each of which the long sides of the magnetic strips adjacent to each other do not overlap,
the first layers comprise at least two stacked layers, and
a position of the long side in one layer included in the second layers is separated from a position of the long side in another layer included in the second layers by 0.5 mm or more in a direction in which the short side extends.
2 . The multilayer magnetic sheet according to claim 1 , wherein a position of the long side in still another layer included in the second layers is separated from the positions of the long sides in the one layer included in the second layers and the another layer included in the second layers by 0.5 mm or more in the direction in which the short side extends.
3 . The multilayer magnetic sheet according to claim 1 , wherein the multilayer magnetic sheet has a width of 100 mm or more and 1000 mm or less and a length of 100 mm or more and 1000 mm or less.
4 . The multilayer magnetic sheet according to claim 1 , wherein the magnetic strips comprise an amorphous alloy strip or a nanocrystalline alloy strip.
5 . The multilayer magnetic sheet according to claim 1 , wherein at least one of the magnetic strips comprise a nanocrystalline alloy strip and comprises pieces.
6 . The multilayer magnetic sheet according to claim 1 , further comprising an adhesive layer provided on one surface of each of the magnetic strips, wherein the adhesive layer comprises a support formed in a band shape and an adhesive provided on each of a first surface and a second surface of the support.
7 . The multilayer magnetic sheet according to claim 6 , wherein a width A that is a dimension of the adhesive layer in a direction intersecting a longitudinal direction of the adhesive layer and a width B that is a dimension of each of the magnetic strips in a direction intersecting a longitudinal direction of the magnetic, satisfy a relationship of 0.2 mm≤(width A-width B)≤3 mm.
8 . The multilayer magnetic sheet according to claim 1 , further comprising:
an adhesive layer comprising a support formed in a band shape and an adhesive provided on each of a first surface and a second surface of the support; and
a resin sheet that is a film-shaped member formed using a resin and that is bonded to the adhesive layer, wherein
the adhesive layer and the resin sheet are provided on the magnetic strip at a first stacking end or on the magnetic strip at a second stacking end opposite to the first stacking end in a direction in which the magnetic strips are stacked.
9 . The multilayer magnetic sheet according to claim 2 , wherein the multilayer magnetic sheet has a width of 100 mm or more and 1000 mm or less and a length of 100 mm or more and 1000 mm or less.
10 . The multilayer magnetic sheet according to claim 2 , wherein the magnetic strips comprise an amorphous alloy strip or a nanocrystalline alloy strip.
11 . The multilayer magnetic sheet according to claim 2 , wherein at least one of the magnetic strips comprise a nanocrystalline alloy strip and comprises pieces.
12 . The multilayer magnetic sheet according to claim 2 , further comprising an adhesive layer provided on one surface of each of the magnetic strips, wherein the adhesive layer comprises a support formed in a band shape and an adhesive provided on each of a first surface and a second surface of the support.
13 . The multilayer magnetic sheet according to claim 12 , wherein a width A that is a dimension of the adhesive layer in a direction intersecting a longitudinal direction of the adhesive layer and a width B that is a dimension of each of the magnetic strips in a direction intersecting a longitudinal direction of each of the magnetic strips satisfy a relationship of 0.2 mm ≤(width A-width B)≤3 mm.
14 . The multilayer magnetic sheet according to claim 2 , further comprising:
an adhesive layer comprising a support formed in a band shape and an adhesive provided on each of a first surface and a second surface of the support; and
a resin sheet that is a film-shaped member formed using a resin and that is bonded to the adhesive layer, wherein
the adhesive layer and the resin sheet are provided on the magnetic strip at a first stacking end or on the magnetic strip at a second stacking end opposite to the first stacking end in a direction in which the magnetic strips are stacked.