WO2017151128A1

WO2017151128A1 - Bezels for computing devices

Info

Publication number: WO2017151128A1
Application number: PCT/US2016/020528
Authority: WO
Inventors: David Thomas BYARGEON; David Brent SPOMER
Original assignee: Hewlett Packard Enterprise Development Lp
Priority date: 2016-03-02
Filing date: 2016-03-02
Publication date: 2017-09-08

Abstract

Examples herein relate to bezels for computing devices. For example, a bezel for a computing device includes a cover rotatably coupled to the bezel. The cover includes an inner panel coupled to an outer panel. Each panel includes a downward facing louvre assembly to prevent a line of sight to components of the computing device and to allow airflow from the computing device.

Description

BEZELS FOR COMPUTING DEVICES

BACKGROUND

[0001] The Federal Information Processing Standard (FIPS) Publication 140-2 is a U.S. government computer security standard designed to coordinate the

requirements and standards for cryptography modules that include both hardware and software components. FIPS 140-2 defines four levels of security, in which level 1 provides the lowest level of security and level 4 provides the highest level of security. The security standards include requirements that prevent unauthorized users from viewing, tampering, or damaging internal components of computing devices. For example, level 2 generally requires a tamper evidence enclosure that is visually opaque.

BRIEF DESCRIPTION OF THE DRAWINGS

[0002] Some examples of the present application are described with respect to the following figures:

[0003] FIG. 1 depicts an exploded view of an inner panel and on outer panel of a bezel cover with each panel including downward facing louvres, according to an example of the present disclosure;

[0004] FIG. 2 depicts an isometric view of the bezel cover with the inner and outer panels adhered together, according to an example of the present disclosure;

[0005] FIG. 3 is a cross-sectional side view of the bezel including the cover, removably attached to a chassis of a computing device, according to an example of the present disclosure; and

[0006] FIG. 4 is a method of forming a bezel for a computing device, according to an example of the present disclosure. DETAILED DESCRIPTION

[0007] Examples described herein relate to bezels for computing devices. In particular, the examples relate bezels that meet the FIPS requirements while substantially minimizing or reducing airflow restrictions, thereby maintaining performance of computing devices. As explained above, FIPS (e.g., level 2) specifies enhanced security mechanisms for a cryptographic module by requiring tamper evidence (e.g., tamper-evident coatings or seals, pick-resistant locks) which must be broken to attain physical access to the plain text cryptographic keys and critical security parameters within the module, and a tamper-evident enclosure that is visually opaque. Thus, compliance with FIPS requirement may be difficult to achieve and may significantly increase heating within the module (i.e., computing devices such as servers, storage devices, networking devices, etc.), which may adversely affect the operation and performance of the module.

[0008] Examples described herein address the above challenges by providing a bezel including a cover (e.g., a bezel door) having double louvres that prevent line of sight and access to components of the computing device while minimally limiting airflow from the computing device. The cover is formed by adhering two panels (an inner and an outer panel), where a set of downward facing louvres are punched in each of the panels. Thus, the resulting cover is a single unit comprising matching louvres facing opposite directions. The cover is rotatably hinged to the bezel, and the bezel can be removably attached to a chassis of the computing device to prevent visual access and to facilitate airflow from the computing device to the external environment. Further, a lock assembly can be place on the cover to prevent the cover from being opened via the hinge.

[0009] In one example, a bezel for a computing device includes a cover rotatably coupled to the bezel. The cover includes an inner panel coupled to an outer panel. Each panel includes a downward facing louvre assembly to prevent a line of sight to components of the computing device and to allow airflow from the computing device.

[0010] In another example, a system includes a computing device including a chassis and a bezel for enclosing the chassis. The bezel includes a cover movably attached to the bezel. The cover includes an inner panel including a first plurality of downward facing louvres and an outer panel including a second plurality of downward facing louvres in an opposite direction from the first plurality of downward facing louvres. The first and second plurality of downward facing louvres are to prevent a line of sight access to components of the computing device and to facilitate airflow from the computing device.

[0011] In another example, a method includes forming a first set of downward facing louvres on a first panel and forming a second set of downward facing louvres on a second panel. The method includes adhering the first panel to the second panel to form a cover of a bezel, the first set of louvres facing an opposite direction from the second set of louvres. The method includes removably mounting the bezel to a chassis of a computing device, the first set of louvres and the second set of louvres are to prevent a line of sight access to components of the computing device and to direct airflow out of the computing device.

[0012] Referring now to the figures, FIG. 1 depicts an exploded view of an inner panel and on outer panel of a bezel cover with each panel including downward facing louvres, according to an example of the present disclosure. Cover 100 includes an inner panel 120 and an outer panel 140. Inner panel 120 and outer panel 120 can be made of sheet metal or any other material of sufficient strength that cannot be easily damaged using reasonable force, such that evidence of the force would show physical damage to the cover 100.

[0013] Inner panel 120 includes downward facing louvres 122 and outer panel 140 includes downward facing louvres 142. Downward facing louvres 122 and 142 can be formed by punching the louvres 122 and 142 into the sheet metal material of the inner panel 120 and the outer panel 140, respectively, or through any other fabrication process. Downward facing louvres 122 of the inner panel 120 are formed facing an opposite direction from downward facing louvres 142 of the outer panel 140. Inner panel 120 and outer panel 140 are adhered or affixed together to form a single unit double louvered cover 100. Inner panel 120 and outer panel 140 can be adhered (or coupled) together using any coupling processes and/or solutions (e.g., epoxy, welding, etc.).

[0014] The double louvered cover 100 formed by coupling the inner panel 120 to the outer panel 140 creates an inverted "U-shaped" louvre assembly that facilitates or directs airflow out of the computing device and also prevents a line of sight access to the computing device when the cover is placed on the chassis of the computing device. The inner panel 120 is in closer proximity to, and faces chassis of the computing device, and the outer panel 140 is further from the chassis of the computing device and faces the external environment. Thus, the louvre assembly 122 of the inner panel 120 is downward facing towards a direction of the chassis of the computing device and the louvre assembly 142 of the outer panel 140 is downward facing towards a direction of the external environment.

[0015] Holes 160 are formed on opposite ends of each of the inner panel 120 and the outer panel 140. Holes 160 are used to mount a lock assembly 162. Lock assembly 162 can include a head portion 162a to receive a lock key, a washer 162b, and a rear portion 162c to provide a locking mechanism. In some examples, the lock assembly 162 can include fewer or more parts, or different parts than those shown in FIG. 1. In some examples, the head portion 162a is mounted on the surface of the outer panel 140 and the washer 162b and lock rear portion 162c are mounted on the surface of the inner panel 120 (i.e., towards the chassis of the computing device). The lock assembly 162 is to prevent the cover 100 from being opened (e.g., like a door) when affixed to the bezel.

[0016] FIG. 2 depicts an isometric view of the bezel cover with the inner and outer panels adhered together, according to an example of the present disclosure. Cover 100 includes the inner panel 120 adhered to the outer panel 140 to form a single unit. The louvre assemble 122 of the inner panel 120 are downward facing and the louvre assembly 142 (not shown) of the outer panel 140 are downward facing on the opposite side of the cover 100. In the example of FIG. 2, the lock assembly 162 is mounted on the cover to provide added security by preventing unauthorized access to the chassis of the computing device (i.e., prevent opening of the cover 100 when it is in a closed position).

[0017] FIG. 3 is a cross-sectional side view of the bezel including the cover, removably attached to a chassis of a computing device, according to an example of the present disclosure. Bezel 320 can be removably attached to the chassis 300 of the computing device via attachment members 360. Attachment members 360 can be, for example, captive screws, mounting buttons, or any other mounting device to removably mount the bezel 320 to the surface of the chassis 300 of the computing device. Bezel 320 can be mounted at the front and/or back of the chassis 300 of the computing device.

[0018] Cover 100 can be rotatably coupled to the bezel 320 via a hinge 340. Accordingly, cover 100 can rotate about the hinge 340 to move the cover 100 between an open position and a closed position. In some examples, the cover 100 can open downwards about the hinge 340 if the hinge 340 is located at the bottom portion of the bezel 320. In other examples, the cover 100 can open upwards about the hinge 340 if the hinge 340 is located at the top portion of the bezel 320.

[0019] Cover 100 includes an inner panel 120 and an outer panel 140 adhered together to form a single unit. Inner panel 120 and outer panel 140 can be made of a metallic material such as a sheet metal. Inner panel 120 includes a plurality of downward facing louvres 122 and outer panel 140 includes a plurality of downward facing louvres 142. Downward facing louvres 122 and 142 can be punched or extruded through the inner panel 120 and outer panel 140, respectively, or by any other fabrication means or processes. The joining of the inner panel 120 and the outer panel 140 to form a single unit creates an inverted "U-shaped" double louvered cover 100, where the louvres 122 of the inner panel 120 are in an opposite direction (i.e., facing the chassis 300) from the louvres 142 of the outer panel 140 (i.e., facing the external environment). The inverted "U-shaped" double louvered cover 100 of the bezel 320, when mounted on the chassis 300, prevents a line of sight (LOS) access to the chassis (and components) of the computing device, and facilitates airflow (AF) from the chassis of the computing device to the external environment. Accordingly, the described solution significantly minimizes airflow (AF) restriction from the computing device, thereby maintaining the performance of the computing device while complying with the FIPS requirements.

[0020] FIG. 4 is a method 400 of forming a bezel for a computing device, according to an example of the present disclosure. It should be apparent to those of ordinary skill in the art that method 400 represents a generalized illustration and that other operations may be added or existing operations may be removed, modified, or rearranged without departing from a scope of the method 400.

[0021] Method 400 includes forming a first set of downward facing louvres on a first panel, at 410, and forming a second set of downward facing louvres on a second panel, at 420. For example, a first set of downward louvres 122 can be formed on the inner panel 120 by a punching or extruding mechanism or process. Similarly, a second set of downward facing louvres 142 can be formed on the outer panel 140 using a punching or extrusion fabrication process. Inner panel 120 and outer panel 140 can be a sheet metal, for example.

[0022] Method 400 includes adhering the first panel to the second panel to form a cover of a bezel, where the first set of louvres are facing an opposite direction from the second set of louvres, at 430. For example, the inner panel 120 can be adhered or joined to the outer panel 140 to form the cover 100 (i.e., a single unit), using any adhering methods (e.g., epoxy, spot welding, etc.). The resulting cover 100 includes the first set of louvres 122 facing an opposite direction from the second set of louvres 142 (i.e., an inverted "U-shaped" double louvered solution).

[0023] Method 400 also includes removably mounting the bezel to a chassis of a computing device, where the first and second set of louvres are to prevent a line of sight access to components within the chassis of the computing device and to direct airflow out of the computing device, at 440. For example, the bezel 320 can be removably mounted to the chassis 300 of the computing device using attachment members 360 (e.g., captive screws). The double louvered solution created by adhering the inner panel 120 to the outer panel 140 prevents line of sight access to components of the computing device and also directs airflow out of the computing device to the external environment.

[0024] In the foregoing description, numerous details are set forth to provide an understanding of the present disclosure. However, it will be understood by those skilled in the art that the present disclosure may be practiced without these details. While the present disclosure has been disclosed with respect to a limited number of examples, those skilled in the art will appreciate numerous modifications and variations therefrom. It is intended that the appended claims cover such modifications and variations as fall within the true spirit and scope of the present disclosure.

Claims

CLAIMS What is claimed is:

1. A bezel for a computing device, comprising:

a cover rotatably coupled to the bezel, the cover comprising:

an inner panel coupled to an outer panel, each panel comprising:

a downward facing louvre assembly to:

prevent a line of sight to components of the computing device; and

allow airflow from the computing device.

2. The bezel of claim 1, wherein the louvre assembly of the inner panel is facing an opposite direction from the louvre assembly of the outer panel.

3. The bezel of claim 1, wherein an airflow path is defined across the louvre assembly of the inner panel to the louvre assembly of the outer panel.

4. The bezel of claim 1, wherein the bezel is removably attached to a chassis of the computing device via attachment members.

5. The bezel of claim 4, wherein the bezel is removably attached to at least one of a front chassis and a rear chassis of the computing device.

6. The bezel of claim 1, wherein the cover is rotatably coupled to the bezel via a hinge and wherein the inner and outer panels rotate about the hinge between an open position and a closed position.

7. The bezel of claim 6, comprising locking members to prevent rotation of the cover to the open position.

8. A system, comprising:

a computing device including a chassis; and

a bezel for enclosing the chassis, the bezel comprising:

a cover movably attached to the bezel, the cover comprising:

an inner panel comprising a first plurality of downward facing louvres; and

an outer panel comprising a second plurality of downward facing louvres in an opposite direction from the first plurality of downward facing louvres,

the first plurality and second plurality of downward facing louvres to:

prevent a line of sight access to components of the computing device; and

facilitate airflow from the computing device.

9. The system of claim 8, wherein the inner panel and the outer panel form a single unit of the cover.

10. The system of claim 8, wherein the cover is movably attached to the bezel via a hinge and wherein the cover is movable about the hinge between an open position and a closed position.

11. The system of claim 10, comprising a locking assembly disposed within the cover to prevent movement of the cover to the open position when the cover is in the closed position.

12. The system of claim, wherein the bezel includes attachment members to removably couple the bezel to the chassis of the computing device.

13. A method, comprising:

forming a first set of downward facing louvres on a first panel;

forming a second set of downward facing louvres on a second panel;

adhering the first panel to the second panel to form of a cover of a bezel, the first set of louvres facing an opposite direction from the second set of louvres; and

removably mounting the bezel to a chassis of a computing device, the first set of louvres and the second set of louvres to:

prevent a line of sight access to components within the chassis of the computing device; and

direct airflow out of the computing device.

14. The method of claim 13, wherein the first and second panels comprise a metallic material.

15. The method of claim 13, comprising:

forming holes on the cover of the bezel; and

mounting a lock assembly through the holes, the lock assembly to prevent opening of the cover.