Magnetic sensor for an elevating motor
OwnerChen-Hui Koinventor
Life of this patent
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Abstract
A magnetic sensor for an elevating motor, and more particularly to a magnetic sensor whose magnetic induction elements are sealed within a magnetically non-permeable minor sleeve. Meanwhile, a signal transmission line is extended therefrom. In addition, the minor sleeve and the magnetic induction elements are disposed within a gear box of the elevating motor. Since the magnetic sensor in accordance with the invention is designed in a built-in type, it is not easily affected and damaged by the external environment. As a result, the service life may be prolonged. Moreover, it is modularized for a compact structure and a practical installation. In addition, it approaches more to the rotational and magnetic pole, thereby enhancing the measuring accuracy.
Claims7
A magnetic sensor for an elevating motor, comprising:
- a) a gear box internally having a reduction gear unit and a transmission gear meshed with the reduction gear unit;
- b) a motor secured to the outside of the gear box for driving the gears within the gear box;
- and
- c) a screw rod passing through the gear box and screwed with the transmission gear,
- wherein the gear box is provided with a mounting hole for the insertion of a magnetic sensor into the gear box, thereby creating a built-in structure for detecting magnetic elements rotatable with the transmission gear such that the change of the internal magnetic force lines within the housing may be detected by the magnetic sensor, thereby achieving a non-contact rotation detection;
- and
- wherein the magnetic sensor includes:
- i) a circuit board provided with magnetic induction elements;
- and
- ii) a transmission line extended outwards from the circuit board for sending out detection signals.
Dependencies are inferred from the claim text.