A linear motor for a sliding door

Abstract

The invention relates to a linear motor for a sliding door. The linear motor comprises a mover component, a stator component and controllers controlling the mover component to move. The stator component is electrically connected with the controller; the stator component comprises two or more than two stators; the controllers are arranged between every two adjacent stators; end portions of the stators on the two sides of the controllers are provided with Hall devices. The controllers are arranged between every two adjacent stators, so that the mover component can move on both the left sides andthe right sides of the controllers and the moving travel of the mover component is increased; the end portions of the stators on the two sides of the controllers are provided with the Hall devices, so that the travel of moving to the left sides and the right sides of the mover component is further increased; thus, even the length of the stator component stays the same, the linear motor system canadapt to wider door openings and the adaptability of the system is greatly improved.

Description

technical field [0001] The invention relates to a stator assembly, in particular to a linear motor for a sliding door. Background technique [0002] Traditional linear devices or systems use rotary motors to convert to linear motion through intermediate conversion devices (such as chains, wire ropes, transmission belts, racks or screw rods, etc.). Since these devices or systems have intermediate conversion transmission mechanisms, the entire drive system has problems such as large volume, low efficiency, and difficult maintenance. Electric doors currently on the market are generally driven by a rotating stator assembly, and are pulled by gears and racks, worm gears and worms, sprockets and chains, friction clutches or wire ropes. In the transmission process, there is a process of converting rotary motion into linear motion, and its structure is complex, easy to wear and malfunction. Patent CN2844362Y discloses a linear motor-driven automatic induction door, using a linear ...

AI Technical Summary

Problems solved by technology

Compared with ordinary traditional electric doors, this linear motor-driven automatic door has obvious progress, but there is still room for improvement. The patent only sets Hall sensors at one end of the iron core coil group, and each Hall sensor The distance between them is only 0.5 times the length of the core coil. The disadvantage of this method is that once the length of the core coil is determined, the position of the Hall sensor is also determined. In this way, the system can only be installed in a specific In the width of the door opening, that is to say, it needs to be customized and developed according to the width of the door opening in actual use, and it does not have the ability to adapt to a variety of door opening widths. In real life, door openings have multiple widths. If each width must be customized development, the cost will be greatly increased, and it will not be possible to achieve large-scale, large-scale production and application

Images