Thermally conductive polymer enclosure for an electrical system

An enclosure comprising:

• a single-piece base made of a thermally conductive polymer material, the single-piece base comprising:
• a first side configured to receive a power converter comprising one or more controllable switches that generate heat in use;
• a second side;
• and
• heat dissipating elements that extend from the second side, wherein the one or more heat dissipating elements are configured to dissipate heat generated by the one or more controllable switches, and each of the one or more heat dissipating elements is made of the thermally conductive polymer material;
• a single-piece thermally conductive spreader between the power converter and the first side, wherein the single-piece thermally conductive spreader is positioned over all of the heat dissipating elements, and the single-piece thermally conductive spreader is configured to distribute heat generated from the one or more controllable switches among the heat dissipating elements;
• and
• a mounting structure comprising:
• a first portion at the second side of the single-piece base;
• and
• side portions that extend from the first portion, wherein, when the mounting structure is attached to the second side of the single-piece base, the first portion extends over the heat dissipating elements.