HEAT EXCHANGER FOR COOLING SWITCH CABINET AND CORRESPONDING COOLING ARRANGEMENT Russian patent published in 2018 - IPC H05K7/20 

FIELD: electricity.

SUBSTANCE: invention relates to a heat exchanger for cooling a switch cabinet and to a corresponding cooling arrangement. Result is achieved due to that heat exchanger (1) for cooling a switch cabinet has first pipe system (2) for a first coolant and at least one second pipe system (3) for a second coolant hydraulically separated from first pipe system (2). First and second pipe systems (2, 3) are thermally coupled through multiple lamellae (4). Adjacent lamellae (4) form an air flow channel through heat exchanger (1). One of the pipe systems is an integral part of an active cooling circuit, and the other is an integral part of a passive cooling circuit, and the pipe system of the passive cooling circuit is located in the direction of air flow through the heat exchanger upstream of the pipe system of the active cooling circuit.

EFFECT: technical result is the creation of a heat exchanger for cooling a switch cabinet and the corresponding switch cabinet, that provide energy-efficient and reliable cooling of the switch cabinet, with the possibility of particularly flexible adaptation of the cooling unit to individual characteristics: such as the power loss of the switch cabinet components and the ambient temperature of the switch cabinet, and the possibility for improving heat exchange if one circulation circuit is disconnected by heat exchange between air passing through a plurality of lamellae of the entire heat exchanger and a coolant circulating in another circuit.

12 cl, 8 dwg