Abstract: Electronic equipment includes a body case, a control unit, a partition board, and a heat exchanger attached to the partition board. The heat exchanger includes a hot-air passage for carrying hot air heated in the body case; a first blower for blowing the hot air into the hot-air passage; a cool-air passage for carrying cooling air from outside the body case, the cooling air being lower in temperature than the hot air; and a second blower for blowing the cooling air into the cool-air passage.

Abstract: A heat exchanger includes an apparatus body, a motor, an air-exhaust fan casing, an air-supply fan casing, heat exchanging devices, an air-supply air-flow path, and an air-exhaust air-flow path. A first stacking pitch of heat transfer plates in the heat exchanging devices placed at positions other than that immediately after an outdoor suction port in the air-supply air-flow path and at positions other than that immediately after a indoor suction port in the air-exhaust air-flow path is smaller than a second stacking pitch of heat transfer plates in the heat exchanging devices immediately after the outdoor suction port in the air-supply air-flow path and immediately after the indoor suction port in the air-exhaust air-flow path.

Abstract: The present invention provides an air path forming plate used for heat exchangers having an intake air path between an outdoor intake port for capturing outdoor air and an indoor flow-in port and having an exhaust air path between an indoor intake port for capturing indoor air and an outdoor exhaust port. Each of the intake air path and the exhaust air path is made of a metal plate having a bend section on which press marks aligned like a perforation line are formed.