IP Library › Granted Patent US 12,439,531
Granted Patent B2
US 12,439,531 · App. 17/815,172 · Granted Oct 7, 2025

System of reducing acoustic energy in an information handling system

Inventors: Chih-Chia Huang (Taipei, TW); Wan-Nien Chen (New Taipei, TW); Hung-Chih Chuang (Taipei, TW); Chung-Chien Wu (New Taipei, TW)
Assignee: Dell Products L.P.
H05K5/0204H05K5/03
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Quick Facts
Patent No.
US 12,439,531
App. No.
17/815,172
Granted
Oct 7, 2025
Kind
B2
Abstract

In one or more embodiments, an information handling system may include multiple fans, a chassis configured to house components of the information handling system, and at least one mat fastened to the chassis, among others. For example, the chassis may include multiple holes through the chassis. For instance, the at least one mat may cover the multiple holes. In one or more embodiments, the at least one mat and the multiple holes may be configured to reduce acoustic energy within the chassis produced by the multiple fans.

Claims (22)

1. An information handling system, comprising:

at least one processor;

a memory medium, coupled to the at least one processor, that stores an operating system and at least one application executable by the at least one processor;

a plurality of fans;

a chassis configured to house components of the information handling system, the chassis including:

a lid; and

a body including a bottom sidewall, a first sidewall, a second sidewall, a front sidewall, and a back sidewall,

wherein the chassis includes a plurality of holes through the chassis,

wherein the lid includes a first subset of holes of the plurality of holes, wherein the bottom sidewall includes a second subset of holes of the plurality of holes,

wherein the first sidewall includes a third subset of holes of the plurality of holes,

wherein the second sidewall includes a fourth subset of holes of the plurality of holes; and

a plurality of mats fastened to the chassis via at least one adhesive;

wherein the plurality of mats cover the plurality of holes and is in direct contact with the plurality of holes such that the plurality of mats cover are directly adjacent to the plurality of holes,

wherein a first mat of the plurality of mats is fastened to the lid of the chassis and covers the first set of holes of the plurality of holes,

wherein a second mat of the plurality of mats is a single mat and fastened to the first, second, and bottom sidewalls and covers the second, third, and fourth sets of holes of the plurality of holes,

wherein the plurality of mats and the plurality of holes are configured to reduce reflected acoustic energy within the chassis produced by the plurality of fans.

2. The information handling system of claim 1 , wherein the plurality of mats are configured to impede at least seventy percent (70%) air, at five pounds per square inch (PSI) of pressure or lower, from passing through the at least one mat.

3. The information handling system of claim 1 , wherein the plurality of mats are configured to prevent air from passing through the plurality of holes.

4. The information handling system of claim 1 , wherein the memory medium includes a hard disk drive.

5. The information handling system of claim 1 , wherein the plurality of mats include foam rubber.

6. The information handling system of claim 1 , wherein the plurality of mats include a polymer material.

7. The information handling system of claim 1 , wherein the plurality of mats are configured to absorb a portion of sound energy generated by the plurality of fans.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 26, 2022
From: HUANG, CHIH-CHIA; CHEN, WAN-NIEN; CHUANG, HUNG-CHIH; WU, CHUNG-CHIEN
To: DELL PRODUCTS L.P.
Reel/Frame 060630/0424 →
Continuity (1)
Related Publication 20240040715A1 · Feb 1, 2024
References Cited (2)
US 20200068741A1 · Waters · 2020 [cited by examiner]
US 20210407549A1 · Niss · 2021 [cited by examiner]