Cooled electronic system with thermal spreaders coupling electronics cards to cold rails

US8493738B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Timothy J. Chainer · Mahopac, US
• Michael A. Gaynes · Vestal, US
• David P. Graybill · Staatsburg, US
• Madhusudan K. Iyengar · Woodstock, US
• Vinod Kamath · Raleigh, US
• Bejoy J. Kochuparambil · Apex, US
• Roger R. Schmidt · Poughkeepsie, US
• Mark D. Schultz · Ossining, US
• Daniel P. Simco · Pound Ridge, US
• Mark E. Steinke · Durham, US

Key dates

• Filing date: May 6, 2011
• Grant date: Jul 23, 2013
• Expiry date: Aug 4, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49002
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Liquid-cooled electronic systems are provided which include an electronic assembly having an electronics card and a socket with a latch at one end. The latch facilitates securing of the card within the socket or removal of the card from the socket. A liquid-cooled cold rail is disposed at the one end of the socket, and a thermal spreader couples the electronics card to the cold rail. The thermal spreader includes first and second thermal transfer plates coupled to first and second surfaces on opposite sides of the card, and thermally conductive extensions extending from end edges of the plates, which couple the respective transfer plates to the liquid-cooled cold rail. The thermally conductive extensions are disposed to the sides of the latch, and the card is securable within or removable from the socket using the latch without removing the cold rail or the thermal spreader.