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US 9,805,853 B2Granted
Isolation transformer, and X-ray generating apparatus and radiography system including the same
AssigneeCanon Kabushiki Kaisha
InventorsKoji Yamazaki, Yasuhiro Hamamoto, Shuji Aoki
Life of this patent
Estimating the term…
Abstract
Both the size reduction and the increase in breakdown voltage of a high-voltage isolation transformer are realized, which is to be used in an insulating liquid in an X-ray generating apparatus. In the isolation transformer, an annular core and a primary coil wound around the annular core are housed in a first container, and a secondary coil is wound around the first container. A first opening through which an insulating liquid flows is provided in the first container.
Claims21
An isolation transformer, comprising:
- an annular core having an annular portion surrounding a bore portion pierced by an imaginary axis;
- one coil wound around the annular core;
- a first container housing the annular core and the one coil, the first container having an annular shape and an insulating property;
- a first lead-out line pair that is connected to the one coil and is extracted outside the first container;
- another coil wound around the first container;
- and
- a second lead-out line pair connected to the other coil,
- the isolation transformer being disposed in an insulating liquid,
- the first container having a first opening through which the insulating liquid flows.
6 more elements
An X-ray generating apparatus, comprising:
- an X-ray generating tube housed in a container;
- and
- a drive device configured to drive the X-ray generating tube,
- wherein a surplus space in the container is filled with an insulating liquid, and
- wherein the drive device comprises an isolation transformer in the container, the isolation transformer comprising:
- an annular core having an annular portion surrounding a bore portion pierced by an imaginary axis;
- one coil wound around the annular core;
- a first container housing the annular core and the one coil, the first container having an annular shape and an insulating property;
- a first lead-out line pair that is connected to the one coil and is extracted outside the first container;
- another coil wound around the first container;
- and
- a second lead-out line pair connected to the other coil,
- the isolation transformer being disposed in an insulating liquid,
- the first container having a first opening through which the insulating liquid flows.
11 more elements
A radiography system, comprising:
- an X-ray generating apparatus, the X-ray generating apparatus, comprising:
- an X-ray generating tube housed in a container;
- and
- a drive device configured to drive the X-ray generating tube,
- wherein a surplus space in the container is filled with an insulating liquid, and
- wherein the drive device comprises an isolation transformer in the container, the isolation transformer comprising:
- an annular core having an annular portion surrounding a bore portion pierced by an imaginary axis;
- one coil wound around the annular core;
- a first container housing the annular core and the one coil, the first container having an annular shape and an insulating property;
- a first lead-out line pair that is connected to the one coil and is extracted outside the first container;
- another coil wound around the first container;
- and
- a second lead-out line pair connected to the other coil,
- the isolation transformer being disposed in an insulating liquid,
- the first container having a first opening through which the insulating liquid flows;
- an X-ray detecting apparatus configured to detect an X-ray emitted from the X-ray generating tube and transmitted through an object;
- and
- a control apparatus configured to control the X-ray generating apparatus and the X-ray detecting apparatus in a coordinated manner.
15 more elements
Dependencies are inferred from the claim text.