Current detection device
AssigneesKabushiki Kaisha Tokai Rika Denki Seisakusho, Toyota Jidosha Kabushiki Kaisha
InventorTatsuyuki Yamaguchi
Life of this patent
Estimating the term…
Abstract
A first bent portion whose extending direction changes in the order of +z, +x, +z, −x, and +z is formed in a first current path, wherein a direction in which two current paths extend in parallel as the z-direction of the x-y-z orthogonal coordinate system and a second bent portion whose extending direction changes in the order of +z, +y, +z, −y, and +z is formed in a second current path. Either one of the z-coordinate range of the middle part of the first bent portion and the z-coordinate range of the middle part of the second bent portion includes the other one and a magnetic flux density detection device that detects the x-direction magnetic flux density and the y-direction magnetic flux density is disposed within the included z-coordinate region.
Claims10
A current detection device that detects the value of a current passing through each of a first current path and a second current path each having a bent portion and extending in parallel except for the bent portion, comprising:
- an x-direction bent portion whose extending direction changes in the order of +z, +x, +z, −x, and +z, formed as the bent portion in the first current path, wherein a direction in which the fiat current path and the second current path extend in parallel is the z-direction of the x-y-z orthogonal coordinate system;
- a y-direction bent portion whose extending direction changes in the order of +z, +y, +z, −y, and +z, formed as the bent portion in the second current path;
- a y-direction magnetic flux density detection device disposed in a region that is on an x-z plane to which the x-direction bent portion is included and is positioned between a +x part extending in the +x direction of the first current path and a −x part extending in the −x direction of the first current path;
- an x-direction magnetic flux density detection device disposed in a region that is on a y-z plane to which the y-direction bent portion is included and is positioned between a +y part extending in the +y direction of the second current path and a −y part extending in the −y direction of the second current path;
- and
- a frame of a magnetic material that surrounds the x-direction bent portion and the y-direction bent portion.
The current detection device according to claim , wherein a third current path that extends in parallel with the first current path and the second current path is provided, the first current path, the second current path and the third current path are disposed in the order of the first current path, the second current path and the third current path in the y-z plane, and the direction from the third current path to the first current path is the +y direction.
Dependencies are inferred from the claim text.