Cooling fin structure

A cooling fin structure used in a cooler for an electric device includes a plurality of pin fins (71) arranged in a zigzag form in a coolant passage (80). Each of the pin fins (71) has a circular portion (72) having a circular cross-section, and irregularly shaped portions (73) provided contiguously...

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Bibliographic Details
Main Authors Kawaura Masanori, Yoshida Tadafumi, Matsui Hirohito
Format Patent
LanguageEnglish
Published 20.12.2016
Subjects
BASIC ELECTRIC ELEMENTS
BLASTING
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HEAT EXCHANGE IN GENERAL
HEATING
LIGHTING
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
MECHANICAL ENGINEERING
PRINTED CIRCUITS
SEMICONDUCTOR DEVICES
WEAPONS
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Summary:A cooling fin structure used in a cooler for an electric device includes a plurality of pin fins (71) arranged in a zigzag form in a coolant passage (80). Each of the pin fins (71) has a circular portion (72) having a circular cross-section, and irregularly shaped portions (73) provided contiguously on the upstream and downstream sides of the circular portion (72) as viewed in a direction of flow of the coolant. The irregularly shaped portions (73) have an outer peripheral surface (75) that is formed along a circumference (130) having a center at a center point (101) of the circular portion (72) of a pin fin (71, 71B) that is located adjacent to the pin fin (71, 71A) having the irregularly shaped portions (73), in an oblique direction relative to the direction of flow of the coolant.
Bibliography:Application Number: US201214112328