Abstract:
A system includes an equipment case configured to hold equipment, a strengthening bracket, and one or more releasable couplers physically coupled to the equipment case and the strengthening bracket. The releasable couplers may be configured to release the strengthening bracket from the equipment case without requiring a tool. In some embodiments, the strengthening bracket comprises a first end and a second end, and one of the releasable couplers are coupled to each end of the strengthening bracket. In some embodiments, the releasable couplers each comprise a flexing member and a protrusion member coupled to the flexing member and the first end and the second end of the strengthening bracket each comprise a slot for receiving the protrusion member of a corresponding coupling member. A corresponding method includes coupling the strengthening bracket to the equipment case with the at least one releasable coupler.

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates generally to electronic equipment and specifically to rack mountable electronic equipment. 
     Electronic equipment such as computers, servers, storage devices, storage arrays, audio equipment, and video equipment are often rack mountable into a rack mount housing in order to facilitate orderly installation of the equipment in a room or facility that is dedicated to the operation and storage of such equipment. Examples include datacenters, control rooms, electronic closets, and the like. In some cases, equipment is pre-mounted on racks in the rack mount housing previous to shipping to, and installation at, a customer site. 
     SUMMARY 
     A system includes an equipment case configured to hold equipment, a strengthening bracket, and one or more releasable couplers physically coupled to the equipment case and the strengthening bracket. The releasable couplers may be configured to release the strengthening bracket from the equipment case without requiring a tool. In some embodiments, the strengthening bracket comprises a first end and a second end and one of the releasable couplers are coupled to each end of the strengthening bracket. In some embodiments, the releasable couplers each comprise a flexing member and a protrusion member coupled to the flexing member and the first end and the second end of the strengthening bracket each comprise a slot for receiving the protrusion member of a corresponding coupling member. A corresponding method includes coupling the strengthening bracket to the equipment case with the at least one releasable coupler. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIGS. 1A and 1B  are perspective view illustrations depicting one example of an equipment strengthening system in accordance with one or more embodiments disclosed herein; 
         FIGS. 2 and 3  are perspective view illustrations depicting one example of a releasable coupler, included in the embodiment of  FIGS. 1A and 1B , and in accordance with one or more embodiments disclosed herein; 
         FIG. 4  is a perspective view illustration depicting selected portions of one example of a strengthening bracket, included in the embodiment of  FIGS. 1A and 1B , and in accordance with one or more embodiments disclosed herein; and 
         FIG. 5  is a flowchart depicting one example of an equipment strengthening method in accordance with one or more embodiments disclosed herein. 
     
    
    
     DETAILED DESCRIPTION 
     The embodiments disclosed herein strengthen equipment during transport and installation while retaining the serviceability of the equipment after installation. 
     As used herein “Rack mount housings,” refers to the relatively large outer housings that include rack mount hardware for rack mounting one, or more, “pieces of equipment” (also sometimes herein called “components”). Typically each piece of equipment will have its own housing, which can be mounted within the larger housing of the rack mount housing. For the sake of clarity, as used herein: (i) the terms “case” or “casing” refers to the housing portion of a piece of equipment; and (ii) the term “housing” will refer to the larger housing in which one, or more, pieces of equipment can be installed. 
     Some systems integrators and equipment vendors have elected to pre-mount equipment within racks previous to transport and installation within a customer&#39;s facility. However, the equipment cases provided by equipment manufacturers are typically not engineered to withstand the shocks and stresses associated with shipping and installation—particularly when mounted in a rack. For example, the ends of an equipment case (that is the left and right sides when facing the rack mounted component) may be fixed to a rack while the middle of the case may be free to flex and/or oscillate. Consequently, the jolts and jars associated with transport may impose forces on the equipment case that are different from, and beyond those, associated with normal equipment operation. As a result, some equipment may arrive at the customer&#39;s facility in an inoperable state resulting in increased delays and costs for systems integrators, equipment vendors, and customers. The embodiments disclosed herein address at least some of these issues. 
     For example,  FIGS. 1A and 1B  are perspective view illustrations depicting one example of an equipment strengthening system  100  in accordance with one or more embodiments of the present invention. As depicted, the equipment strengthening system  100  includes a strengthening bracket  110 , a pair of releasable couplers  120 , an equipment case  130 , and a pair of slideout arms  140 . The equipment strengthening system  100  effectively strengthens equipment while enabling tool-less removal of the strengthening bracket  110  in order to service the equipment. 
     As shown in  FIG. 1A , the depicted strengthening bracket  110  has a concave, box-like shape that allows space for various piece parts extending rearwardly from the back end of server  150  (note: equipment case  130  encloses, and forms a part of server  150 ). The ends of the strengthening bracket  110  are C-shaped in order to fit over the releasable couplers  120  and latch into place, as will be explained in more detail, below. The depicted strengthening bracket  110  includes a meshed panel  112  than facilitates airflow to the equipment within the equipment case  130 . In the depicted embodiment, the meshed panel  112  comprises a metal material that has a hexagonal honeycomb pattern formed therein that provides a high strength-to-weight ratio. 
     The depicted strengthening bracket  110  also includes one or more mating elements  116  (i.e.,  116 A and  116 B) that facilitate mating the strengthening bracket  110  to the equipment case  130  (or equipment encased therein). In the depicted embodiment, the mating elements  116 A are U-shaped brackets that each have a sloped end that vertically guides the depicted strengthening bracket  110  into place relative to the equipment case  130 . In contrast, the mating elements  116 B are rounded tabs that mate with slots within the equipment case  130  (or equipment encased therein) and horizontally guide the depicted strengthening bracket  110  into place relative to the equipment case  130  (or equipment encased therein). 
     The equipment case  130  encases electronic equipment, or the like, and protects the equipment. In the depicted embodiment, two slideout arms  140  are fixedly mounted, respectively to the right and left hand sides of equipment case  130 . The slideout arms slidably engage with slideout arm engagement hardware  142  of a rack mount housing (not much shown in the drawings) so that the slideout arms, the equipment case and the server can slide, in the direction of double arrow A, as a unit with respect to the rack mount housing in which they reside. This arrangement enables service personnel to slide the equipment case between an operational position (not shown) and a service position. In the depicted embodiment, each of the releasable couplers  120  physically couple the strengthening bracket  110  to the equipment case  130  via the slideout arms  140  and fasteners  151 . In other embodiments, the releasable couplers  120  are directly coupled to the equipment case  130 . 
       FIGS. 2 and 3  are perspective view illustrations depicting one example of the releasable couplers  120  in greater detail. Referring now to  FIGS. 2 and 3 , while continuing to refer to  FIG. 1 , each of the releasable couplers  120  have a press-in cantilever spring latch mechanism provided with a flexing member  210  and one or more protrusions  122  (attached to the flexing member  210 ) that mate with slots  118  within the strengthening bracket  110 . In the depicted embodiment, the flexing member  210  is a cantilevered plate that is attached to the releasable coupler at the edge of the cantilevered plate that is closest to the equipment case  130 . 
     The depicted strengthening bracket  110  and the releasable couplers  120  are provided with release apertures  220  that enable a user to press (e.g., with a finger) against the flexing member  210  and move the protrusions  122  out of the slots  118  and thereby release the releasable coupler  120 . Note that no tool is needed to effect the release in this embodiment. Once released, the strengthening bracket  110  may be removed to facilitate access to the portion of the equipment that was covered by the strengthening bracket  110 . Subsequently, the strengthening bracket  110  may be pushed into place over the releasable couplers  120  and guided into position by the mating elements  116 . In response thereto, the protrusions  122  may snap into place within the slots  118  and thereby couple the strengthening bracket  110  to equipment case  130  of server  150 . 
       FIG. 4  is a perspective view illustration depicting selected portions of one example of the strengthening bracket  110  in accordance with one or more embodiments of the present invention. Referring now to  FIG. 4 , while continuing to refer to  FIG. 1 , the depicted strengthening bracket  110  includes an access aperture  114  that enables access to a portion the server  150 . For example, the access aperture  114  may be used to install cable connections used by the server  150 . 
       FIG. 4  also shows the right C-Shaped end of the strengthening bracket  110  after it has been fully installed and engaged/retained by the cantilever spring latch. As previously explained, the protrusions  122  snap into place and protrude through the slots  118  in the C-Shaped end of the strengthening bracket  110  thereby coupling the strengthening bracket  110  to the equipment case  130 . Once engaged, the protrusions  122  and flexing members  210  retain the bracket in place and prevent unintentional disengagement from the equipment case  130  (e.g., during shipping, earthquakes, or accidents). To remove the strengthening bracket  110 , the flexing member  210  is deflected via the release aperture  220 . In response thereto, the protrusions  122  retract from the slots  118  and enable removal of the strengthening bracket  110 . 
       FIG. 5  is a flowchart depicting one example of an equipment strengthening method  500  in accordance with one or more embodiments of the present invention. As depicted, the equipment strengthening method  500  includes providing ( 510 ) an equipment case, providing ( 520 ) a strengthening bracket, and coupling ( 530 ) the strengthening bracket to the equipment case. The equipment strengthening method  500  strengthens equipment while enabling tool-less removal of the strengthening bracket in order to service the equipment. 
     Providing ( 510 ) an equipment case may include providing equipment that is packaged in a case. Examples of such equipment includes computers, servers, storage devices and storage arrays, audio equipment, video equipment, or other types of electronic equipment. Oftentimes, such equipment is rack mountable and may be mounted in a rack previous to transport and installation. However, the cases for such equipment may not be engineered to withstand the shocks involved with many forms of transport—particularly over long distance. 
     Providing ( 520 ) a strengthening bracket may include providing a bracket that is engineered to provide strength to an equipment case. The equipment case may encase equipment such as blade servers and storage arrays. The strengthening bracket may have a concave shape that increases strength. The strengthening bracket may also be meshed in order to reduce weight and enable airflow. 
     Coupling ( 530 ) the strengthening bracket to the equipment case may include coupling the strengthening bracket to the equipment case with one or more releasable couplers that enable releasing the strengthening bracket from the equipment case without requiring a tool. Releasing the strengthening bracket may enable a technician to service the equipment while mounted in a rack or the like. Subsequently, the strengthening bracket may be re-coupled to the equipment case. 
     One of skill in the art will appreciate that the embodiments disclosed herein provide additional strength to an equipment case both during shipping and continued operation while enabling service personnel to service the equipment via tool-less removal of a strengthening bracket. Additionally, the embodiments disclosed herein are able to effectively strengthen, and/or stiffen, an equipment case to withstand stresses and shocks that are beyond normal operational requirements so that the equipment stored therein is protected from earthquakes and other disasters. 
     Some possible variations to the embodiment of  FIGS. 1A and 1B  will now be discussed with reference to  FIGS. 1A and 1B . For this discussion of alternative embodiments, it is helpful to think of the equipment strengthening assembly as potentially including for sub-assemblies as follows: (i) a component sub-assembly (which, in the embodiment of  FIGS. 1A and 1B  includes server  150 , equipment case  130  and slideout arms  141 ); (ii) a rack mount housing sub-assembly (which, in the embodiment of  FIGS. 1A and 1B  includes an outer shell (not shown in the drawings, but familiar to those of skill in the art), left and right side rack mount posts (not shown in the drawings, but familiar to those of skill in the art) and slideout arm engagement hardware  142 ); (iii) bracket sub-assembly (which, in the embodiment of  FIGS. 1A and 1B  includes strengthening bracket  110 ); and (iv) intermediate coupling sub-assembly (which, in the embodiment of  FIGS. 1A and 1B  includes couplers  120 , protrusions  122  and flexing members  210 ). For the following discussion of variations and alternative embodiments, it is also helpful to understand that the construction and layout of the rack mount housing sub-assembly and/or the component sub-assembly will define the following dimensions: up/down; left side/right side; and front/back. 
     In some embodiments, the rack mount housing sub-assembly may be omitted. 
     In some embodiments, the functionality of that intermediate coupling sub-assembly (that is, tool-less releasable engagement of the bracket sub-assembly to the main assembly) may be built into the component sub-assembly and/or the bracket sub-assembly, rather than being a separate sub-assembly. 
     In the embodiment of  FIGS. 1A and 1B , the component sub-assembly includes slidable arms. Alternatively, the component sub-assembly may not include slidable arms (for example, the bracket sub-assembly may releasably mechanically connect to the equipment casing. In the embodiment of  FIGS. 1A and 1B , the component sub-assembly slides in the front/back direction with respect to the rack mount housing sub-assembly. Alternatively, the component sub-assembly may be fixedly mechanically connected to the rack mount housing sub-assembly. As a further alternative, the hardware mechanically connecting the component sub-assembly to the rack mount housing sub-assembly may provide for other types of relative motion between the rack mount housing sub-assembly and the component sub-assembly. 
     In the embodiment of  FIGS. 1A and 1B , the bracket sub-assembly is releasably attached across: (i) the left side/right side dimension of the component sub-assembly; and (ii) the up/down dimension of the component sub-assembly. That means that, in that embodiment, the bracket sub-assembly enhances stiffness with respect to both the side-to-side direction and the up-and-down direction. In the embodiment of  FIGS. 1A and 1B , the side-to-side stiffening enhancement is probably most important because the component sub-assembly is elongated in the side-to-side direction. Alternatively or additionally, in the case of an especially tall component sub-assembly, the up/down dimension stiffening may take on more practical importance. Generally speaking, in various embodiments of the present disclosure, the bracket sub-assembly will be connected across and will provide enhanced stiffness in at least one of the following directions: (i) side-to-side; (ii) up/down; and/or (iii) front/back. 
     In the embodiment of  FIGS. 1A and 1B , the stiffening bracket is releasably mechanically connected, through intermediate coupling sub-assembly, to the component sub-assembly. Alternatively, the bracket sub-assembly could be alternatively, or additionally, be releasably mechanically connected to the rack mount housing sub-assembly (for example, to mounting rails (not shown in the Figures) in the rack mount housing sub-assembly). This tool-lessly-releasable mechanical connection between the bracket sub-assembly and the rack mount housing sub-assembly ma, or may not, employ an intermediate coupling sub-assembly. 
     Whether the bracket sub-assembly is mechanically connected to the component sub-assembly, the rack mount housing sub-assembly, or both, the connection may not entirely rigid with respect to all directions. For example, a side-to-side stiffening bracket sub-assembly may be mechanically connected to have some “play” in the up/down and/or front/back dimensions with respect to the sub-assembly(ies) to which the bracket sub-assembly is connected. 
     In the embodiment of  FIGS. 1A and 1B , the bracket enhances damage resistance primarily through a relatively stiff, relatively inelastic bracket that can absorb significant stresses with little strain and no failure. Alternatively, the bracket may be partially, or wholly, made of more elastic material so that stresses are absorbed by strain in the elastic material, which recovers its shape when the stress stops. 
     In the embodiment of  FIGS. 1A and 1B , the bracket sub-assembly is located behind the rear end of the component sub-assembly. Alternatively or additionally, the bracket sub-assembly could be located over any exterior surface, side or end of the component sub-assembly. Of course, the side of the component sub-assembly over which the bracket sub-assembly extends will largely determine the directions of stiffening of strengthening. For example, if the bracket sub-assembly extends from the front end of the left side surface of the component sub-assembly to the back end of the left side surface of the component sub-assembly, then it will tend to strengthen against: (i) compressive tensile stress applied in the front/back direction in the vicinity of the left side; and (ii) up/down stresses in the vicinity of the left side (especially if the bracket has a substantial up/down direction height). 
     The embodiment of  FIGS. 1A and 1B  uses hand operable, spring loaded latch hardware to effect the tool-less releasability of the bracket sub-assembly. Alternatively or additionally, other types of tool-lessly releasable mechanical connection hardware may be used, such as the following: friction or force fit; hand operated threadable engagement hardware (for example, a hand operable screw); magnetic connector (for example, a solenoid mechanical latch); etc. 
     One of skill in the art will appreciate that a variety of adjustments may be made to the depicted embodiments that fit within the spirit and intent of the claimed invention. Consequently, it should be noted that this description is not intended to limit the invention. On the contrary, the embodiments presented are intended to cover some of the alternatives, modifications, and equivalents, which are included in the spirit and scope of the invention as defined by the appended claims. Further, in the detailed description of the disclosed embodiments, numerous specific details are set forth in order to provide a comprehensive understanding of the claimed invention. However, one skilled in the art would understand that various embodiments may be practiced without such specific details. 
     Although the features and elements of the embodiments disclosed herein are described in particular combinations, each feature or element can be used alone without the other features and elements of the embodiments or in various combinations with or without other features and elements disclosed herein. 
     This written description uses examples of the subject matter disclosed to enable any person skilled in the art to practice the same, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the subject matter is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims.