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US 11,964,852 B1Granted
Electrically propelled towing apparatus
AssigneeZhejiang Nowvow Mechanical and Electrical Co., Ltd.
InventorsLitian Zhang, Chunxiang Zhang, Jun Zhou, Renyi Zhang
Life of this patent
Estimating the term…
Abstract
An electrically propelled towing apparatus includes a housing, in the housing being provided a reel, a stator, and a rotor configured to drive the reel; a mounting cavity is defined in the housing; and the stator is exposed and fixed in the mounting cavity. With elimination of the conventional housing of drive motor, the invention improves heat-dissipation effect.
Claims8
An electrically propelled towing apparatus comprising:
- a housing, in the housing being provided a reel, a stator, and a rotor configured to drive the reel, wherein a mounting cavity is defined in the housing, and the stator is exposed in the mounting cavity and fixed in the mounting cavity, the housing comprising an inner cartridge,
- wherein the inner cartridge is provided with a shaft hole for a rotary shaft of the rotor to pass through, a supporting seat configured to position the rotary shaft and rotatably connected to the rotary shaft being provided at the shaft hole, the rotary shaft being connected to a connecting shaft sleeve, a convex ring being provided surrounding a peripheral side of the shaft hole, a variable diameter rectangular spring being provided between the convex ring and the connecting shaft sleeve, the variable diameter rectangular spring abutting against an inner wall of the convex ring and an outer sidewall of the connecting shaft sleeve.
Dependencies are inferred from the claim text.