Transport device, specimen analysis system comprising transport device, and specimen pre-treatment device comprising transport device
The present invention inhibits an inductance of each winding of a conveyance device from varying with position. The conveyance device for conveying a conveyance target object having a magnetic material includes a plurality of teeth 20 a, 20 b , and 20 c formed by a magnetic material, a plurality of windings 30 wound around each of the teeth 20 a, 20 b , and 20 c , a yoke 40 in a shape of a lattice formed by a magnetic material that is magnetically connected to the teeth 20 a, 20 b , and 20 c in order to support the teeth 20 a, 20 b , and 20 c , and an additional yoke 45 formed by a magnetic material that is magnetically connected to an outer end of the yoke 40.
1 . A conveyance device for conveying a conveyance target object having a magnetic material, the conveyance device comprising:
a plurality of teeth formed by a magnetic material;
a plurality of windings wound around each of the plurality of teeth;
a yoke in a shape of a lattice formed by a magnetic material that is magnetically connected to the plurality of teeth in order to support the plurality of teeth; and
an additional yoke formed by a magnetic material that is magnetically connected to an outer end of the yoke,
wherein auxiliary teeth formed by a magnetic material with no winding are magnetically connected to the additional yoke.
2 . The conveyance device according to claim 1 , wherein the additional yoke is coupled to an outer periphery of the yoke.
3 . The conveyance device according to claim 1 , wherein the additional yoke is molded integrally with the yoke.
4 . The conveyance device according to claim 1 , wherein the additional yoke magnetically connects the teeth on an outer side of a magnetic circuit section to other teeth.
5 . The conveyance device according to claim 4 , wherein the additional yoke magnetically connects the teeth on the outer side of the magnetic circuit section to the teeth on an inner side of the magnetic circuit section.
6 . The conveyance device according to claim 4 , wherein the additional yoke magnetically connects the teeth on the outer side of the magnetic circuit section to at least two other teeth.
7 . The conveyance device according to claim 4 , wherein the additional yoke magnetically connects at least two of the teeth on the outer side of the magnetic circuit section with each other.
8 . The conveyance device according to claim 1 , wherein a height of the auxiliary teeth is less than a height of the teeth wound with the windings.
9 . The conveyance device according to claim 1 , wherein a plurality of the auxiliary teeth is disposed along one side of the conveyance device substantially shaped like a quadrilateral and become thicker and/or longer from a center of the one side toward a corner.
10 . The conveyance device according to claim 1 , wherein a width of the additional yoke increases from a center of one side of the conveyance device substantially shaped like a quadrilateral toward a corner.
11 . The conveyance device according to claim 1 , wherein a location of the conveyance target object is detected on a basis of a current value of each winding.
12 . A specimen analysis system comprising:
the conveyance device according to claim 1 .
13 . A specimen pretreatment device comprising:
the conveyance device according to claim 1 .
14 . A conveyance device for conveying a conveyance target object having a magnetic material, the conveyance device comprising:
a plurality of teeth formed by a magnetic material;
a plurality of windings wound around each of the plurality of teeth;
a yoke in a shape of a lattice formed by a magnetic material that is magnetically connected to the plurality of teeth in order to support the plurality of teeth; and
an additional yoke formed by a magnetic material that is magnetically connected to an outer end of the yoke,
wherein a width of the additional yoke increases from a center of one side of the conveyance device substantially shaped like a quadrilateral toward a corner.