Outer rotor gardening tool motor with integrated motor and controller

Abstract

The invention relates to a motor and controller integrated outer rotor gardening tool motor, which comprises a stator assembly and a rotor assembly, and is characterized in that the stator assembly comprises an aluminum front support, bearings are installed in the two ends of the aluminum front support, a stator iron core sleeves the outer side of one end of the aluminum front support, and an outgoing line sheath is embedded in the outer side of the aluminum front support; a controller is mounted in the aluminum front bracket; the controller is installed on the front aluminum support, the controller dissipates heat through the front aluminum support, a heat dissipation shell of the controller is omitted, a connecting part of the motor and the controller is omitted, the cost is low, and the occupied space of the whole machine is small. The controller is integrated on the front aluminum support and the stator end plate, and the controller is positioned through a screw structure of the stator end plate. The controller is fixed on the aluminum front support through screws, and the controller is waterproof and dustproof through pouring sealant.

Description

technical field [0001] The invention relates to the technical field of garden equipment processing, in particular to an outer rotor garden tool motor with an integrated motor and controller. Background technique [0002] The rotor casing of the outer rotor motor is made of steel materials, and the magnets are glued to the surface of the casing. This method has high parts processing costs, complicated bonding of the magnets, and the risk of the magnets falling off; [0003] The shaft of the outer rotor motor and the aluminum fan blade are matched tightly with the aluminum fan blade after the shaft is punched, which requires high tolerance precision of the parts. During mass production, it is easy to loosen the shaft if the matching tolerance is not processed well, resulting in the risk of motor failure; [0004] The aluminum fan blades of the outer rotor motor and the casing are fixed by tight fit and glue. There are no mechanical parts to prevent rotation. The processing pre...

AI Technical Summary

Problems solved by technology

[0002] The rotor casing of the outer rotor motor is made of steel materials, and the magnets are glued to the surface of the casing. This method has high parts processing costs, complicated bonding of the magnets, and the risk of the magnets falling off;

[0003] The shaft of the outer rotor motor and the aluminum fan blade are matched tightly with the aluminum fan blade after the shaft is punched, which requires high tolerance precision of the parts. During mass production, it is easy to loosen the shaft if the matching tolerance is not processed well, resulting in the risk of motor failure;

[0004] The aluminum fan blades of the outer rotor motor and the casing are fixed by tight fit and glue. There are no mechanical parts to prevent rotation. The processing precision of the parts is high, the production process is complicated, and there is a risk of the casing falling off;

[0005] The aluminum front bracket of the outer rotor motor and the stator core are fixed by tight fit and glue, there are no mechanical parts to prevent rotation, the processing precision of parts is high, the production process is complicated, and there is a risk of shell falling off;

[0006] The controller and the motor are separate entities, and the wiring harness and terminals of the connecting part are expensive and occupy a large space

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