Patent ID: 9088194
Filing Date: 2015-07-21
Classification: H02K

Abstract:
1. A structure for heat dissipation of motors, comprising a heat dissipation component, the heat dissipation component comprising an inner area, an outer area, a center point, and a periphery; wherein: a plurality of bosses is arranged at intervals on the bottom of the heat dissipation component and an airflow passage is formed at the periphery of each boss; the heat dissipation component is a motor controller or an end cover; the bosses are arranged along a plurality of curves; the plurality of curves is arc lines bending from central points of the heat dissipation component towards edges of the heat dissipation component; the bosses are evenly distributed along the plurality of curves; the plurality of curves is spaced from one another and a plurality of airflow passages is formed between adjacent curves; the bosses that are disposed at an inner end of each of the plurality of curves are circumferentially distributed and are spaced from one another; a plurality of openings is formed between adjacent bosses that are disposed at the inner end of each of the plurality of curves; the plurality of openings has equal widths; the plurality of bosses forms a plurality of concentric circles; the center of the plurality of concentric circles is superposed with the center point; one of the plurality of concentric circles separates the inner area from the outer area; a first part of the plurality of concentric circles is disposed in the inner area; a second part of the plurality of concentric circles is disposed in the outer area; each of the concentric circles in the first part of the plurality of concentric circles comprises a first number of bosses; each of the concentric circles in the second part of the plurality of concentric circles comprises a second number of bosses; and the second number is greater than the first number.