Patent ID: 11935815
Assignee: UACJ CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A heat sink configured to be mountable on a cooling-wall part, which cools a heat-generating body, in a heat exchanger, the heat sink having a coolant passageway configured such that coolant is flowable therethrough, wherein:
the coolant passageway comprises:
a coolant lead-in part, through which the coolant is introduced into the coolant passageway;
a coolant lead-out part, from which the coolant is led out of the coolant passageway;
a plurality of coolant-contact parts disposed spaced apart from one another along a coolant path leading from the coolant lead-in part to the coolant lead-out part, the coolant-contact parts being configured to bring the coolant into contact with the cooling-wall part;
a first coolant-transit part disposed between adjacent ones of the coolant-contact parts and through which the coolant transits from an upstream-side one of the coolant-contact parts to a downstream-side one of the coolant-contact parts in the coolant path; and
first connecting parts respectively interposed between the first coolant-transit part and the upstream-side one and the downstream-side of the coolant-contact parts, and

wherein the first connecting parts each have a passageway cross-sectional area that is smaller than passageway cross-sectional areas of the coolant-contact parts and the first coolant-transit part.