Heat dissipation device of minitype detection equipment

The utility model relates to a heat dissipation device of minitype detection equipment. The heat dissipation device comprises a housing, the interior of the housing is provided with a metal heat sink used for being installed under a heat-generating part, the metal heat sink is connected with a lower cover plate arranged on the housing through a conductive heat dissipation layer, and the lower cover plate is provided with radiating grooves; in addition, the metal heat sink is provided with heat outlets, the radiating grooves and the heat outlets are arranged in the same plane, heat generated by the heat-generating part of the minitype detection equipment passes through the heat outlets and is transmitted to the radiating grooves through the conductive heat dissipation layer and is discharged out of the housing quickly. According to the utility model, the interior of the housing is provided with the metal heat sink installed under the heat-generating part, heat is transmitted to the radiating grooves through the conductive heat dissipation layer, heat is directly conducted to the housing, and the heat transmission path is shortest and the thermal resistance is lowest, the heat transmission capability of the metal heat sink to the housing is optimum, the problem that seal and heat dissipation are ambivalent is effectively solved, and the energy consumption is reduced.