Chiller outdoor unit

Abstract

Provided is an outdoor unit for a refrigerator that cools heat-generating components using a heat pipe and can suppress a reduction in reliability. The outdoor unit (10) is provided with: an outdoor fan (18) that generates an outdoor air flow (AF); an outdoor unit housing (40); a high-heat-generating electrical component (65); 76); a power distribution box (50) for accommodating a compressor control board (76); and a first cooling unit (80) for cooling high-heat-generating electrical components (65). The first cooling unit (80) has: a heat pipe (83); a plurality of first cooling unit fins (81) arranged on the flow path of the outdoor airflow (AF); and a heat pipe (83) and the first cooling unit interposed therebetween Between the fins (81), the first cooling unit body part (82) thermally connects the heat pipe (83) and the first cooling unit fins (81). The heat pipe (83) is located in the distribution box (50), adjacent to the high-heating electrical component (65).

Description

technical field

[0001] The present invention relates to refrigerator outdoor units. Background technique

[0002] Conventionally, on a refrigerator outdoor unit, the air flow generated by a fan cools electrical components (heat-generating components) that generate heat when energized. On the other hand, power devices such as IGBTs (Insulated Gate Bipolar Transistor) or power modules including such power devices generate a particularly large amount of heat compared with other heat-generating components, and it is difficult to ensure reliability by cooling only by air flow. Cool down sufficiently. Therefore, in order to increase the cooling capacity of these heat-generating components, for example, the outdoor unit of the air conditioner shown in Patent Document 1 (Japanese Unexamined Patent Publication No. 2006-266547 ) is cooled by a heat pipe provided with a cooling material. In Patent Document 1, a heat pipe is thermally connected to a heat generating member and a heat d...

Images