Cell module
A cell module includes: a cylindrical cell; a fixing member having a through-hole in which one end of the cylindrical cell is held; and a solidified adhesive bonding together the cylindrical cell and the fixing member. The through-hole has an outer part and an inner part. A shape of the outer part is partially enlarged compared with a shape of the inner part so as to form a liquid pocket, and matches the shape of the inner part on the side opposite from the liquid pocket. Relative to the fixing member, the cylindrical cell is held in an inclined state, such that another end of the cylindrical cell is located closer to the liquid pocket side than the one end of the cylindrical cell is.
1. A cell module, comprising:
a cylindrical cell;
a fixing member formed substantially in a plane, and having a through-hole in which one end of the cylindrical cell is received, the through-hole having an outer part that is a part on a side of the one end of the cylindrical cell in a thickness direction of the fixing member, and an inner part that is a part on a side of another end of the cylindrical cell in the thickness direction of the fixing member, a shape of the outer part and a shape of the inner part being partially different from each other such that the through-hole has a stepped shape, the shape of the outer part being partially enlarged compared with the shape of the inner part so as to form a liquid pocket, and substantially matching the shape of the inner part on a side opposite from the liquid pocket; and
a solidified adhesive disposed in a clearance between a side surface of the cylindrical cell and a wall surface of the through-hole and bonding together the cylindrical cell and the fixing member, wherein
the cylindrical cell is held in an inclined state relative to the plane of the fixing member, with an interval between the cylindrical cell and a wall surface of the inner part on a liquid pocket side being smaller than an interval between the cylindrical cell and the wall surface of the inner part on the side opposite from the liquid pocket, such that the other end of the cylindrical cell is located closer to the liquid pocket side than the one end of the cylindrical cell.
2. The cell module according to claim 1 , further comprising a holding member located on the side of the other end of the cylindrical cell, wherein the cylindrical cell is disposed so as to be inclined relative to the plane of the fixing member and the holding member.
3. The cell module according to claim 1 , further comprising a holding member located on the side of the other end of the cylindrical cell, wherein
the holding member has a seat surface that comes in contact with an end face at the other end of the cylindrical cell, and
the seat surface has an inclined surface of which the liquid pocket side, in a direction connecting the liquid pocket side and the opposite side in the outer part of the fixing member, is located closer to the fixing member.
4. The cell module according to claim 1 , further comprising a holding member located on the side of the other end of the cylindrical cell, wherein
the holding member has a seat surface that comes in contact with an end face at the other end of the cylindrical cell, and
the seat surface is inclined such that a distance between the seat surface and the fixing member is shorter in a perpendicular direction from the liquid pocket side of the fixing member to the seat surface than in a perpendicular direction from the side of the fixing member opposite from the liquid pocket to the seat surface.
5. The cell module according to claim 1 , wherein the cylindrical cell is located approximately at a center of the through-hole in a direction perpendicular to a direction connecting the liquid pocket and the opposite side.