Abstract: A heat dissipation structure for photovoltaic inverter includes a photovoltaic inverter, a thermal module and at least one heat pipe. The thermal module has a heat dissipation backboard formed with at least one groove. The heat pipe is inlaid in the groove. The heat pipe has a plane face and an arcuate face. The plane face of the heat pipe is flush with the heat dissipation backboard and attached to the photovoltaic inverter. The arcuate face of the heat pipe is snugly attached to a wall of the groove. The processing cost and material cost of the heat dissipation structure are lowered and the heat dissipation efficiency of the heat dissipation structure is enhanced.

Abstract: A heat exchanger includes a body. Both sides of the body are provided with a first flowing path set and a second flowing path set. The first flowing path set and the second flowing path set are provided with a plurality of flow-disturbing portions on both sides of the body respectively. The body is provided with an inlet and an outlet in communication with the first flowing path set and the second flowing path set. A working fluid circulates in the first flowing path set and the second flowing path set. The flow-disturbing portions make the working fluid to generate separated eddies to increase the strength of turbulent flow and to improve the heat-conducting efficiency of the heat exchanger greatly.