Switch structure and explosion-proof device
AssigneeAzbil Corporation
InventorsYoshiro HONDA, Takashi WATANABE
Life of this patent
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Abstract
A switch that includes a hermetically sealed container including a container wall separating an inside of the hermetically sealed container from an outside of the hermetically sealed container, a magnetic sensor arranged in the hermetically sealed container and configured to be turned ON/OFF by a magnetic field of a magnet acting from the outside of the hermetically sealed container through the container wall of the hermetically sealed container, and a first magnetic body provided at the container wall of the hermetically sealed container and serving as a path of the magnetic field acting on the magnetic sensor from the magnet.
Claims15
A switch, comprising:
- a hermetically sealed container including a container wall separating an inside of the hermetically sealed container from an outside of the hermetically sealed container;
- a magnetic sensor arranged in the hermetically sealed container and configured to be turned ON/OFF by a magnetic field of a magnet acting from the outside of the hermetically sealed container through the container wall of the hermetically sealed container;
- and
- a first magnetic body provided at the container wall of the hermetically sealed container and serving as a path of the magnetic field acting on the magnetic sensor from the magnet.
A sealed electronic device comprising:
- a switch including
- a hermetically sealed container including a container wall separating an inside of the hermetically sealed container from an outside of the hermetically sealed container;
- a magnetic sensor arranged in the hermetically sealed container and configured to be turned ON/OFF by a magnetic field of a magnet acting from the outside of the hermetically sealed container through the container wall of the hermetically sealed container;
- and
- a first magnetic body provided at the container wall of the hermetically sealed container and serving as a path of the magnetic field acting on the magnetic sensor from the magnet;
- and
- an electronic device configured to be controlled by the magnetic sensor, the electronic device being electrically connected to the magnetic sensor and provided inside the hermetically sealed container.
Dependencies are inferred from the claim text.