The utility model discloses a circuit board insulation packaging body which comprises a semi-closed
metal shell and a
metal heat dissipation body, two sides of the
metal shell are provided with fixing lugs, two ends of the metal shell are both provided with installation pieces, the metal shell is provided with an accommodating cavity, the accommodating cavity can accommodate a circuit board, and the metal heat dissipation body and the circuit board are fixedly assembled through bolts. The metal heat dissipation body abuts against one side of the circuit board, an electrical insulation spacer is arranged between the other side of the circuit board and the metal shell, heat conduction insulation
colloid is filled among the circuit board, the metal heat dissipation body, the electrical insulation spacer and the containing cavity in a sealed mode, and the fixing lugs can bend towards the heat conduction insulation
colloid. And the fixing lugs can be inserted into the heat-conducting insulating rubber body until the fixing lugs can abut against the heat-conducting insulating rubber body or the fixing lugs can be inserted into the heat-conducting insulating rubber body, so that a mutual limiting trend is formed. The circuit board is prevented from being damaged due to shaking and
impact, the circuit board is prevented from breaking down due to
moisture of attached water drops, and the heat dissipation effect of the circuit board is improved.