IP Library Granted Patent US 11,963,333
Granted Patent B2
US 11,963,333 · App. 17/656,908 · Granted Apr 16, 2024

Electronic apparatus, cooling device, and method for manufacturing cooling device

Inventors: Masahiro Kitamura (Yokohama, JP); Akinori Uchino (Yokohama, JP); Shusaku Tomizawa (Yokohama, JP)
Assignee: LENOVO (SINGAPORE) PTE. LTD.
H05K7/20336G06F1/203H05K7/2039
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Quick Facts
Patent No.
US 11,963,333
App. No.
17/656,908
Granted
Apr 16, 2024
Kind
B2
Abstract

An electronic apparatus includes: a chassis; a heat generating element provided in the chassis; and a cooling device that has a cooling fin, a heat pipe connecting the cooling fin and the heat generating element, and a pressing assembly pressing the heat pipe against the heat generating element, and is provided in the chassis. The heat pipe has: a heat absorbing section that absorbs heat generated by the heat generating element; and a thin plate section having a thickness which is smaller than that of the heat absorbing section. The pressing assembly has: a base assembly relatively fixed to the chassis; and a bridge section that is provided integrally with the base assembly and placed on a surface of the thin plate section in such a manner as to extend over the heat pipe in a width direction.

Claims (6)

1. An electronic apparatus comprising: a chassis; a heat generating element in the chassis; and a cooling device that has a cooling fin, a heat pipe connecting the cooling fin and the heat generating element, and a pressing assembly pressing the heat pipe against the heat generating element, wherein the cooling device is in the chassis, wherein the heat pipe has: a heat absorbing section that absorbs heat generated by the heat generating element; a heat dissipating section that dissipates the heat absorbed by the heat absorbing section to the cooling fin; and a thin plate section at an end portion that is on an opposite side from the heat dissipating section, and has a thickness which is smaller than that of the heat absorbing section, and the pressing assembly has: a base assembly fixed to the chassis; and a bridge section that is integral with the base assembly and is on a surface of the thin plate section to thereby extend over the heat pipe; wherein a first surface of the heat pipe is higher than a second surface of the heat pipe, thereby the thin plate section is thinner than the heat absorbing section, the bridge section is on a surface of a first surface side of the thin plate section, a surface of the bridge section is flush with or lower than the first surface of the heat pipe wherein the pressing assembly further has a second bridge section that sandwiches the heat absorbing section between itself and the bridge section, and extends over the heat pipe.

2. The electronic apparatus according to claim 1 ,

wherein the second surface is connected to the heat generating element, and the first surface opposes an inner surface of the chassis.

3. The electronic apparatus according to claim 1 , wherein the second bridge section is on the second surface of the heat pipe.

4. The electronic apparatus according to claim 3 ,

wherein the thin plate section is at a position not overlapping the heat generating element.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2025
From: LENOVO (SINGAPORE) PTE LTD.
To: LENOVO PC INTERNATIONAL LIMITED
Reel/Frame 070269/0077 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2025
From: LENOVO PC INTERNATIONAL LIMITED
To: LENOVO SWITZERLAND INTERNATIONAL GMBH
Reel/Frame 070269/0092 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 29, 2022
From: KITAMURA, MASAHIRO; UCHINO, AKINORI; TOMIZAWA, SHUSAKU
To: LENOVO (SINGAPORE) PTE. LTD.
Reel/Frame 059421/0706 →
Continuity (1)
Related Publication 20220369512A1 · Nov 17, 2022
Cited By (1)
US 12,238,897