Patent Description:
In a conventional arrangement, server systems are usually mounted from the front of the server system rack like a drawer, and therefore it has been intuitive to arrange the majority of storage drives of the server systems at location(s) that is near a user for easy accessibility. In other words, the storage drives (e.g., hard drives) are usually arranged at the front part of the server systems, and therefore the storage drives are typically inserted or removed from a front face or a top face of the server systems. However, insertion from the front face of the server systems naturally limits the number of the storage drives by the front face area due to industrial specified width and height; insertion from the top face of the server systems requires the user to reach from above of the server systems while inserting or removing a storage drive, which is not convenient. On the other hand, insertion from the side faces of the server systems (e.g., the flank of the server system body) may increase the number of the storage drives as well as maintain easy accessibility to each storage drives. However, having more storage drives means more heat is produced within the server system. Furthermore, more storage drives under industrial specified width and height also means less available space for cooling. Therefore, side insertion of the storage drives usually has a thermal problem, which is highly undesirable to server systems.

<CIT> discloses a server system comprising a base, a front panel arranged on the base and defining a collecting space; two doors arranged on opposite sides of the base, and being perpendicular to the front panel; two storage cases arranged between the doors in a back to back arrangement, and configured to receive multiple rows and columns of a plurality of storage drives horizontally, wherein two first corridors are each defined between one of the doors and one of the storage case facing the one door; two circuit boards arranged between the two storage cases, wherein the two circuit boards comprise a plurality of slits, wherein a second corridor is defined between the two circuit boards; a storage cover disposed above the base over the two first corridors, the second corridor, the two storage cases, and the two circuit boards.

<CIT> discloses a server chassis including a chassis, a motherboard, a processing assembly and a storage assembly. The chassis includes a bottom plate. The bottom plate has a front side and a rear side that are opposite to each other. The chassis has a first area and a second area. The first area is located adjacent to the front side, and the second area is located adjacent to the rear side. The motherboard is disposed on the bottom plate and located between the front side and the rear side. The processing assembly is disposed on the bottom plate and selectively disposed in the first area or the second area. The storage assembly is disposed on the bottom plate and located adjacent to the front side.

<CIT> discloses a streamlined air baffle for directing air flow from a fan unit to a heat sink. The streamlined air baffle has a top cover plate and a pair of side walls. The side walls are connected to the top cover plate. The top cover plate and one ends of the side walls define an inlet. A curved surface of the top cover plate defines the outlet with the opposite ends of the side walls. The cross section area of the outlet is smaller than the cross section area of the inlet.

The present disclosure provides a new arrangement of a side loading server system that incorporates enhanced heat management capability, as provided by the aspects of independent claims <NUM> and <NUM>. Preferred features are provided by the dependent claims. It will be appreciated that various aspects and embodiments of the invention may work in combination. It will also be appreciated that features of the various aspects and embodiments may be interchanged.

The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the disclosure.

It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth to provide a thorough understanding of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.

According to one embodiment of the present disclosure, <FIG> illustrates a server system <NUM> mounted to a rack <NUM>; <FIG> illustrates an exploded view of the server system <NUM> without the rack <NUM>; <FIG> illustrates the arrangements in the server system <NUM>. Referring to <FIG> and <FIG>, the server system <NUM> has an enclosure. The enclosure comprises a deck (base) <NUM>, a top cover <NUM> disposed over the deck <NUM>, a front panel <NUM> disposed between the top cover <NUM> and the deck <NUM>, a back panel <NUM> parallel to the front panel <NUM>, a pair of side walls <NUM> parallel to each other, two component housings (i.e., storage module)<NUM>, two circuit boards <NUM>, a fan module <NUM>, a pair of fan mounts <NUM>, a board insulator <NUM>, a motherboard (not shown), and a power module <NUM>. The pair of side walls <NUM> are arranged to be perpendicular to the back panel <NUM> and the stress supporting member <NUM>. Further, the pair of side walls <NUM> are arranged to be perpendicular to the front panel <NUM>. In some embodiments, the enclosure further comprises two side doors <NUM> parallel to each other. The pair of side doors <NUM> are arranged to be perpendicular to the front panel <NUM> and the stress supporting member <NUM>. Further, the pair of side doors <NUM> are arranged to be perpendicular to the back panel <NUM>. Each of the pair of side doors <NUM> are arranged to be at a substantially straight angle with a corresponding side wall <NUM>. In one embodiment, the deck <NUM> is a rectangular plate having two longer sides and two shorter sides. The front panel <NUM> and the back panel <NUM> are each arranged at one of the two shorter sides of the deck <NUM>; the side walls <NUM> and the side doors <NUM> are arranged at the longer sides of the deck <NUM>. Each longer side of the deck <NUM> has a side wall <NUM> proximal to the back panel <NUM> and a side door <NUM> proximal to the front panel <NUM>. In some embodiments, the side doors <NUM> are mechanically attached to enclosure. In some embodiments, portions of the enclosure act as jambs to the side doors <NUM> where mechanical attachments are formed. In an exemplary embodiment, the side doors are hinged to the top cover <NUM> and configured to angle away from the enclosure. Furthermore, the side wall <NUM> and the side door <NUM> on the same side of the deck <NUM> are substantially aligned with each other. The side wall <NUM> and the side door <NUM> are disposed between the top cover <NUM> and the deck <NUM>. The component housings <NUM>, the circuit boards <NUM>, the fan module <NUM>, the board insulator <NUM>, the motherboard, and the power module <NUM> are disposed on the deck <NUM>. The component housings <NUM> comprises a receiving frame structure (storage case) <NUM>, and a plurality of device docks (drive bays) <NUM>. The device docks <NUM> are configured to carry a plurality of electronic devices (i.e., storage drives, storage components) D, and the storage drives D can be inserted into the receiving frame structure <NUM> horizontally with the device docks <NUM> from the front end of the component housing <NUM>. In some embodiments, the component housing <NUM> is configured to receive the plurality of storage components D in a stacked array formation. In one embodiment, the device docks <NUM> can be integrated into the receiving frame structure <NUM>, and thus the receiving frame structure <NUM> can receive the storage drives D by itself. Thus, the device docks <NUM> may be arranged in a stacked array formation as well. In some embodiments, the component housing <NUM> has a top surface and a bottom surface respectively fastened to the top cover <NUM> and the deck <NUM>. In some other embodiments, the component housing <NUM> has a front end and a back end opposite the front end. The front end is facing outward the enclosure and the back end is facing inward the enclosure. In some embodiments, the component housing includes a main body where openings between the front end and the back end of the main body allow access between the front end and back end of the component housing. The component housings <NUM> are arranged between the side doors <NUM> in a back-to-back arrangement. Each of the component housings <NUM> is facing one of the side doors <NUM>. In other words, the front end of the component housings <NUM> are facing outward from the longer side of the deck <NUM>. The component housings <NUM> are at a distance from a periphery of the corresponding longer side of the deck <NUM>. Since the component housings <NUM> are facing the side doors <NUM>, the device docks <NUM> and the storage drives D cannot be removed from the receiving frame structure <NUM> when the side doors <NUM> are closed. In some embodiments, the front end of the component housing <NUM> is at a distance from the side door <NUM>.

In some embodiments, the pair of circuit boards <NUM> are arranged between the pair of component housings <NUM>. The pair of circuit boards <NUM> are at a distance from each other. Each of the circuit boards <NUM> is vertically arranged with respect to the deck <NUM> at the back end of one of the component housings <NUM>, so the circuit boards <NUM> are standing behind and covering the back end of the component housings <NUM>. In some embodiments, the circuit boards are covering the back end of the component housings by having the planar surface (i.e., side of the circuit board having the largest surface area) of the circuit board <NUM> arranged projectively within the periphery of the back end of the component housing <NUM>. In some embodiments, the circuit board <NUM> may arranged to extend from the periphery of the back end of the component housing <NUM>. In an exemplary embodiment, the planar surface of the circuit board <NUM> may be disposed over the opening at the back end of the main body of the component housing <NUM>. In some embodiments, each of the circuit boards <NUM> may be arranged at an angle from the deck <NUM>. In an exemplary embodiment, the circuit boards <NUM> are arranged to be substantially perpendicular to the deck <NUM>. Further, the circuit board <NUM> may be abutting the back end of the component housing <NUM>. In some embodiments, the circuit board <NUM> is mechanically fastened to the back end of the component housing17. In some embodiments, the circuit boards <NUM> can be electrically coupled to the storage drives D in the component housings <NUM> without cables in between. Thus, in some embodiments, the storage drives D and the circuit boards are coupled to each other using board-to-board connectors. Further, the circuit boards <NUM> are configured to form electrical coupling between the storage drives D and the motherboard.

The fan module <NUM> is arranged between the side walls <NUM> and configured to cool the component housings <NUM> and the circuit boards <NUM>. The pair of fan mounts <NUM> are arranged separately in proximity to different side walls <NUM>, and the fan module <NUM> can be installed to the server system <NUM> by coupling to the pair of fan mounts <NUM>. As such, the fan module <NUM> sits across the deck <NUM> in a side-to-side direction in the server system <NUM>. The motherboard is arranged on the board insulator <NUM> between the fan module <NUM> and the back panel <NUM>, and the motherboard is electrically coupled to the circuit boards <NUM>, the fan module <NUM>, and the power module <NUM>. The power module <NUM> is arranged between the side walls <NUM> closer to the back panel <NUM> than the fan module <NUM>, and the back of the power module <NUM> is aligned with the back panel <NUM>, and thus the back panel <NUM> does not cover the back of the power module <NUM> as such. Therefore, the power module <NUM> can be removed from the server system <NUM> independently. The top cover <NUM> is disposed above the deck <NUM> over the component housings <NUM>, the circuit boards <NUM>, the fan module <NUM>, the motherboard, and the power module <NUM>. Therefore, the deck <NUM>, the top cover <NUM>, the front panel <NUM>, the back panel <NUM>, the side walls <NUM>, the doors <NUM>, and the power module <NUM> together form an enclosure accommodating the component housings <NUM>, the circuit boards <NUM>, the fan module <NUM>, the fan mounts <NUM>, the board insulator <NUM>, and the motherboard.

In one embodiment of the present disclosure, the top cover <NUM> comprises a storage cover <NUM> covering over the component housings <NUM> and the circuit boards <NUM>, a fan cover <NUM> covering over the fan module <NUM>, and a motherboard cover <NUM> covering over the motherboard. Therefore, the component housings <NUM> with the circuit boards <NUM>, the fan module <NUM>, and the motherboard can be accessed individually from the top of the server system <NUM> for maintenance by removing corresponding portion of the top cover <NUM>.

<FIG> is a top view of <FIG> and <FIG> is a simplified partial layout PL of <FIG> according to one embodiment of the present disclosure. Referring to <FIG> and <FIG>, a cooling arrangement of the server system <NUM> in accordance to an embodiment of the instant disclosure (e.g., for the component housings <NUM> and the circuit boards <NUM> thereof) will be described below.

To cool the server system <NUM>, the fan module <NUM> is configured to draw air into the server system <NUM> from the front panel <NUM> and blow air out of the server system <NUM> at the back panel <NUM>. Between the front panel <NUM> and the back panel <NUM>, the air driven by the fan module <NUM> flows through and cool the component housings <NUM> and the circuit boards <NUM>. More specifically, as shown in <FIG>, the air flows into a collecting space CS in the front panel <NUM> through multiple air inlets <NUM> of the front panel <NUM>, and then the air exits the front panel <NUM> through multiple air outlets <NUM> at the sides of the collecting space CS. And then, the air flows into two periphery corridors (first corridors) FC between the front panel <NUM> and the component housings <NUM>. In some embodiments, the periphery corridor FC is defined by a lateral separation between the front end of the component housing <NUM>, one of the side door <NUM>, and a portion of a stress distributing member <NUM>. The periphery corridor FC is further defined by the vertical separation between the deck <NUM> and the top cover <NUM>. In other words, a flow path is defined by an enclosure formed using the front end of the component housing <NUM>, the side door <NUM>, a portion of a stress distributing member <NUM>, the deck <NUM>, and the top cover <NUM>. As shown in <FIG>, the portion of the stress distributing member <NUM> arranged between side doors <NUM> and the component housing <NUM> form a seal for the periphery corridor FC. Further, the stress distributing member <NUM> forms a barrier between a front section and a rear section of the deck <NUM>. The front section is further defined by a space between the pair of side doors <NUM>. The rear section is further defined by a space between the pair of side walls <NUM>. The pair of periphery corridors FC refer to the space situated inside the doors <NUM> and in front of the component housings <NUM> as shown in <FIG>, so each of the two periphery corridors FC is defined between one of the doors <NUM> and one of the component housings <NUM> facing the door <NUM>. The server system <NUM> further comprises a stress distributing member (first support) <NUM> arranged at the end of the periphery corridor FC and on a side closer to the back panel <NUM> of the component housings <NUM>, and the stress distributing member <NUM> acting as an air stopper is configured to stop the air in the periphery corridor FC from flowing toward the fan module <NUM> without passing through the component housings <NUM> and the circuit boards <NUM>. In some embodiments, the air flowing though the periphery corridor FC is exhausted by the fan module <NUM> to enter the component housing <NUM> through the front end and exit the component housing <NUM> through the plurality of slits <NUM> of the circuit boards <NUM>. The stress distributing member <NUM> traverses the entire width of the deck <NUM>. In some embodiments, the stress distributing member <NUM> is fastened to the deck <NUM> and the top cover <NUM>. The stress distributing member <NUM> and the component housing <NUM> are arranged to abut each other. In one embodiment, the server system <NUM> can comprise other types of air stoppers disposed at the end of the two periphery corridors FC instead of or in addition to the stress distributing member <NUM>, for example, airtight sealant, airtight foam, airtight tape, etc. As a result, the air flows from the two periphery corridors FC into the component housings <NUM> through multiple air holes <NUM> at the front end, and then the air leaves the component housing <NUM> from the multiple slits <NUM> on the circuit boards <NUM>. As such, the air enters a central corridor (second corridor) SC which is a space defined between the circuit boards <NUM>. As the fan module <NUM> continues drawing, the air from the central corridor SC is driven through an opening <NUM> of the stress distributing member <NUM> between the central corridor SC and the fan module <NUM>. The opening <NUM> may be formed by a perforation on the stress distributing member <NUM> aligned with the central corridor SC. In the end, the air passes through the fan module <NUM> and leaves the server system <NUM> from the back panel <NUM>. The two periphery corridors FC are parallel to the central corridor SC, whereas the collecting space CS is perpendicular to the central corridor SC. It should be noted that, the collecting space CS in the front panel <NUM> should not be in direct communication with the central corridor SC between the component housings <NUM>.

<FIG> illustrates a boning structure according to one embodiment of the present disclosure. In some embodiments, the enclosure is divided into a front section and a rear section. A boning structure of the enclosure is configured to provide structural support to the enclosure when experiencing load force. In some embodiments, the boning structure includes the stress distributing member <NUM>, the side walls <NUM> fastened to the ends of the stress distributing member <NUM>, and a spine <NUM> disposed between the deck <NUM> and the stress distributing member <NUM>. The spine <NUM> may be disposed substantially equidistantly to the pair of side walls <NUM>. In some embodiments, the stress distributing member <NUM> further includes a holding bracket <NUM> configured to hold down the spine <NUM> when experiencing load force. The holding bracket <NUM> forming an arch in the bottom part of the stress distributing member <NUM>.

In addition to the stress distributing member <NUM> being arranged to define a rear section of the enclosure from the front section, the stress distributing member <NUM> may be used as a structural beam capable of withstanding load. In some embodiments, a server rack is configured to receive a plurality of enclosure. When a user need to access the enclosure, the user may pull the enclosure partially away from the server rack. In this way, a portion of the enclosure is without support from the rack. When in use, the enclosure may be partially hanging out of the server rack and may be without support for the front section. The stress distributing member is configured form a cantilever for the enclosure when a portion (i.e. front section) of the enclosure is hanging. The front section of the enclosure is defined by an area between the front panel <NUM> and the stress distributing member <NUM>. In some embodiments, the component housings <NUM> are arranged in the front section of the enclosure. In this way, the center of gravity of the enclosure is positioned in the front section. In some embodiments, the stress distributing member <NUM> extends beyond the component housings <NUM>. In some embodiments, ends of the stress distributing member <NUM> extending beyond the front end of the component housings act as air stoppers in the periphery corridor FC.

In some embodiments, the spine <NUM> may form a channel having a web <NUM> and flanges <NUM> protruding from sides of the web <NUM>. In some embodiments, the web <NUM> traverses across the whole length of front section and extending partially into the rear section. Further, the web <NUM> is fastened to the deck <NUM>. In some other embodiment, depending on the material of the spine, the web <NUM> may extent partially into the fron section and the rear section. In some embodiments, the flanges <NUM> are extending towards the direction of the top cover <NUM>. In some embodiments, the flanges <NUM> are mechanically fastened to the stress distributing member <NUM>. Further, the ends of the flanges form L-channels <NUM>. In some embodiments, the L-channel may be a structure where a pair of planar structures are arranged to form an L shaped cross section. In some embodiments, the angle between the planar structures may be perpendicular to each other. In some other embodiments, the angle between the planar structures may be less than <NUM> degrees. In an exemplary embodiment, the flanges <NUM> are mechanically fastened to a side of the stress distributing member <NUM> facing the front section. In particular, a portion of the L-channel <NUM> disposed parallel to a surface of the stress distributing member <NUM> are fastened to the stress distributing member <NUM> using a fastener <NUM>. Further, in some embodiments, the flanges <NUM> are mechanically fastened to the front panel <NUM>. In an exemplary embodiment, the flanges are mechanically fastened to the internal frame <NUM> of front panel <NUM>. In particular, a portion of the L-channel <NUM> disposed parallel to a internal frame132 are fastened to the stress distributing member <NUM> using a fastener <NUM>.

Referring across the width of the stress distributing member <NUM>, when a weight load of the storage devices is applied to the front section of the enclosure, the spine <NUM> may present a load force to the stress distributing member <NUM> and the side walls <NUM> may each present support reaction force to the ends of the stress distributing member <NUM>. Referring across the length of the enclosure, when a weight load of the storage devices D is applied to the front section of the enclosure, the stress distributing member <NUM> and the spine <NUM> may form a cantilever structure. In an exemplary embodiment, when the storage devices D are equally divided between the pair of component housings <NUM>, the storage devices D may exert substantially constant loading on the length of the spine disposed across the front section.

Furthermore, the side walls <NUM> are arranged on the rear section of the enclosure. The side walls <NUM> of the enclosure are abutting the ends of the stress distributing member. In some embodiments, the side walls <NUM>, the deck <NUM>, and the top cover <NUM> are fastened to the stress distributing member <NUM>. In this way, the structural integrity of the enclosure is supported by the stress distributing member <NUM> and, further, by the spine <NUM>. When a force is applied to any of the side walls <NUM>, the deck <NUM>, and the top cover <NUM>, the stress distributing member <NUM> may absorb at least a portion of the stress generated on the enclosure by the force applied.

<FIG> illustrates a side door structure according to one embodiment of the present disclosure. In further embodiments, a seal strip <NUM> (as shown in <FIG>) is disposed between the side door <NUM> and the jamb to the side door <NUM> on the enclosure. The seal strip <NUM> is configured to prevent air from entering the side door <NUM>. In some embodiment, the seal strip <NUM> may be used as a barrier for the space between the jamb of the side door <NUM> and the side door <NUM>. In an exemplary embodiment, the jamb of the side door <NUM> is a portion of the top cover <NUM>. The seal strip <NUM> (as shown in <FIG>) is disposed between the deck <NUM> and the top cover <NUM>. The seal strip <NUM> is disposed between the side door <NUM> and the top cover <NUM>, where the seal strip <NUM> is attached to an inner surface of the top cover <NUM>. The seal strip <NUM> is configured to prevent air from entering through a space between the side door and the top cover.

<FIG> illustrates a cross sectional view of a side door structure according to one embodiment of the present disclosure. In some embodiments, the side door <NUM> (as shown in <FIG>) includes a door panel <NUM> and a sealing flange <NUM> formed at an angle from the door panel <NUM>. In some embodiments, the sealing flange <NUM> is perpendicular to the door panel <NUM>. In some other embodiments, an angle between the sealing flange <NUM> and the door panel <NUM> may be greater, or less, than <NUM> degrees. When the angle between the sealing flange <NUM> and the door panel <NUM> is greater than <NUM> degrees, the sealing flange <NUM> may form a barrier for a gap between the door panel <NUM> and the top cover <NUM>.

The door panel <NUM> is configured to angle away from a corresponding side wall <NUM> (as shown in <FIG>). In other words, when the side door <NUM> is opened and/or moved away from the enclosure, an angle between the side wall <NUM> and the side door <NUM> may increase. The sealing flange <NUM> is configured to angle away from the top cover <NUM>. In other words, when the side door <NUM> is opened and or moved away from the enclosure, an angle between the sealing flange <NUM> and an inner surface of the top cover <NUM> may increase. Further, when the side door <NUM> is opened, the front end of the component housing <NUM>(as shown in <FIG>) may be exposed and the user may gain access to the electronic components stored within the component housing <NUM>.

In some embodiments, when the side door <NUM> is closed, the sealing flange <NUM> forms a barrier between the outside environment and the periphery corridor. Although the sealing flange <NUM> may not be directly touching the top cover <NUM> or the seal strip <NUM>, the air flow from outside environment may still be prevented from entering the periphery corridor and the air flow within the periphery corridor may be prevented from leaking out of the enclosure. Further, when the side door <NUM> is closed, depending on the mechanism used, the side doors may be at rest. In other words, the side door <NUM> may be covering the front end of the component housing <NUM> when no force (e.g., pulling force) is applied to the side door <NUM>.

In some embodiments, when the seal strip <NUM> is attached to the inner surface of the top cover <NUM> and is disposed adjacent to the side door <NUM>, the thickness of the seal strip <NUM> is no less than a distance between the top cover <NUM> and the sealing flange <NUM> when the side door <NUM> is closed. In some other embodiments, when the door is closed, the sealing flange <NUM> and the seal strip <NUM> may be substantially abutting each other.

In some other embodiments, the periphery of the top cover <NUM> arranged above the side doors <NUM> may be folded. Thus, the thickness of the seal strip <NUM> may further have additional thickness of the top cover <NUM> and the thickness that is no less than a distance between the top cover <NUM> and the sealing flange <NUM> when the side door <NUM> is closed.

In some other embodiments, the thickness of the seal strip <NUM> is less than a distance between the inner surface of the top cover <NUM> and the top row of device docks <NUM>. In some such embodiments, when the top row of device docks <NUM> are removed from the enclosure, the seal strip <NUM> may not impede on the path of the device docks <NUM>. In some other embodiments, the thickness of the seal strip <NUM> is less than a distance between the inner surface of the top cover <NUM> and the top row of storage drives D (as shown, e.g., in <FIG>). Consequently, when the top row of storage drives D is removed from the enclosure, the seal strip <NUM> may not impede on the path of the storage drives D.

In some embodiments, the stress distributing member <NUM> may include a pair of door stops <NUM> protruding from areas of the stress distributing member <NUM> arranged between the side doors <NUM> and the component housings <NUM>. The door stops <NUM> are configured to seal a gap between the side doors <NUM> and the side walls <NUM>.

<FIG> illustrates the front panel <NUM> being disassembled according to one embodiment of the present disclosure. The front panel <NUM> comprises an external frame <NUM>, and an internal frame <NUM> opposite the external frame <NUM>. Multiple air inlets <NUM> are formed on the external frame <NUM> through perforations. Multiple air outlets <NUM> are formed on the internal frame <NUM> through perforations. The front panel <NUM> can be installed to the server system <NUM> by coupling the internal frame <NUM> between the side of component housings <NUM> and the deck <NUM>. In other words, the component housings abut the internal frame. In some other embodiments, the component housing is further arranged to be fastened to the front panel <NUM>. And, the external frame <NUM> is coupled to the internal frame <NUM> to form the collecting space CS. In some embodiments, the collecting space CS is formed between the external frame <NUM> and the internal frame <NUM>. In some embodiments, the collecting space CS is arranged to collect particles from outside environment. However, the use of the collecting space CS is not limited thereto. The multiple air inlets <NUM> are arranged on the external frame <NUM>. In addition, the multiple air inlets <NUM> comprise a major air inlet 133a arranged at the front of the front panel <NUM> and a minor air inlet 133b arranged at the top and/or at the bottom (not shown) of the front panel <NUM>. In other words, the major air inlet 133a and the minor air inlet 133b are arranged at different faces of the front panel <NUM>. The multiple air outlets <NUM> are arranged to the sides of the internal frame <NUM>, and thus corresponding to the two periphery corridors FC in position. In some embodiments, the perforations (i.e., multiple air outlets <NUM>) on the internal frame <NUM> are formed in an area projectively across the extending part of the stress distributing member <NUM>. In particular, the multiple air outlets <NUM> are formed in an area of the internal frame <NUM> arranged between the front end of the component housing and the side door. In some embodiments, the area of perforation of the external frame is greater than an area of perforation of the internal frame. In comparison, the total area of the multiple air inlets <NUM> is larger than the total area of the multiple air outlets <NUM>, as such compressing the air and increasing the flowrate around the multiple air outlets <NUM>.

In one embodiment of the present disclosure, <FIG> shows the storage cover <NUM> comprising a cover punch <NUM> if the minor air inlet 133b is arranged at the top of the front panel <NUM>, and the cover punch <NUM> is corresponding to the minor air inlet 133b in position. Therefore, the air can be drawn through the cover punch <NUM> of the storage cover <NUM> that leads into the collecting space CS of the front panel <NUM>. In another embodiment of the present disclosure, <FIG> shows the deck <NUM> comprising a deck punch <NUM> if the minor air inlet 133b is arranged at the bottom of the front panel <NUM>, and the deck punch <NUM> is corresponding to the minor air inlet 133b in position. Therefore, the air can be drawn through the deck punch <NUM> of the deck <NUM> that leads into the collecting space CS of the front panel <NUM>. Back to <FIG>, in one embodiment of the present disclosure, each of the doors <NUM> comprises a stepped structure <NUM> which divides the door <NUM> into an upper portion 16U and a lower portion <NUM>, and the lower portion <NUM> is dented into the server system <NUM> with respect to the upper portion 16U. Therefore, the doors <NUM> are configured to receive racking rails <NUM> beneath the stepped structures <NUM> when the server system <NUM> is completely within the rack <NUM> as shown in <FIG>, such that the overall weight of the server system <NUM> can be evenly distributed between the front panel <NUM> and the back panel <NUM> without fixing the racking rails <NUM> to the doors <NUM>.

<FIG> is a side view of the server system <NUM> with the door <NUM> opened according to one embodiment of the present disclosure. The server system <NUM> depicted in <FIG> is a 2U rack mount server unit, and each receiving frame structure <NUM> of the two component housings <NUM> is configured to carry twelve device docks <NUM>, hence twelve storage drives D as shown. Therefore, the server system <NUM> with two component housings <NUM> is configured to load twelve storage drives D on each side, and twenty-four storage drives D in total as such. In an exemplary, the enclosure may be able to twenty-four storage drives D, each weighing around <NUM> grams. In some embodiments, the enclosure is able to support around <NUM> worth of electronic device weight inserted into the enclosure. In particular, the boning structure of the enclosure allows the enclosure to support <NUM> worth of load while hanging from the server rack. Further, in some other embodiments, the boning structure of the enclosure allows the enclosure to support more than <NUM> worth of load in the front section while hanging from the server rack. Of which, other load source other than storage devices may be included. In some other embodiments, the enclosure may be able to support hanging load greater than <NUM> (i.e. front section having a load weight around <NUM>. However, the embodiments are not limited thereto. In some embodiments, the loading limit of the enclosure may be changed according to the size and material of the enclosure. The multiple air inlets <NUM> are arranged at the front of the device docks <NUM> in the component housings <NUM>. Since both the air outlets <NUM> and the air holes <NUM> are in communication with the periphery corridors FC, and thus allowing the air drawn by the fan module <NUM> flows from the collecting space CS into the device docks <NUM>. The length Ld of the doors <NUM> is equal to or longer than the length Ls of the component housings <NUM>, that not only shields the component housings <NUM> from dust, but also ensures the periphery corridors FC defined inside the doors <NUM> communicating all the air holes <NUM> when the doors <NUM> are closed, such that all the air from the multiple air outlets <NUM> can flow into the component housing <NUM>. Since the doors <NUM> should be longer than the component housings <NUM>, the side walls <NUM> is not overlapped with the component housings <NUM>. Though the length Ls of the component housing <NUM> is equal to the length of the receiving frame structure <NUM> in this embodiment. In another embodiment where a receiving frame structure <NUM> is not provided, the length Ls can represent an overall length of a plurality of storage drives D that is mounted to the server system <NUM> on one side.

According to one embodiment of the present disclosure, <FIG> illustrates one of the component housings <NUM> with a circuit board <NUM> behind; <FIG> illustrates a A-A cross-sectional view of <FIG>; <FIG> illustrates one of the receiving frame structures <NUM>. As shown in <FIG>, the twelve storage drives D in the receiving frame structure <NUM> are arranged horizontally in a three (rows) by four (columns) arrangement. Referring to <FIG>, the receiving frame structure <NUM> comprises three column partitions <NUM> and a plurality of row rails <NUM>, and each column partition <NUM> has a double layered structure with the plurality of row rails <NUM> integrated thereon. Back to <FIG>, as the air drawn from the periphery corridors FC entering the component housings <NUM> via the air holes <NUM> on the device docks <NUM>, the air passes passages P next to the storage drives D. In one embodiment, the passages P are defined by spaces above the top of the storage drives D. When the air travels through the passages P, the air is in direct contact with the storage drives D, and thus taking heat away mostly from top of the storage drives D. After passing through the passages P, the air leaves the component housings <NUM> and enters the central corridor SC via slits <NUM> on the circuit boards <NUM> which are behind the component housings <NUM>.

<FIG> illustrates a storage module according to one embodiment of the present disclosure. The storage module may be formed by the component housing <NUM> and the circuit board <NUM>. In some embodiments, the circuit boards <NUM> are perforated to form a plurality of slits <NUM>. The plurality of slits 181A may be formed on the planar profile of the circuit boards <NUM>. In some embodiments, the plurality of slits are in an array 181A formation. When the circuit board <NUM> is covering the back end of the component housing <NUM>, the plurality of slits <NUM> may be arranged to expose the back ends of the storage components. In some embodiments, the plurality of slits 181B are further formed by the circuit board <NUM> in combination with the component housing <NUM>. In an exemplary embodiment, a portion of the slits 181B are formed by a notch <NUM> on the periphery of the circuit board <NUM> and a corresponding peripheral side <NUM> on the back end the component housing <NUM>. In an exemplary embodiment, the number of the plurality slits <NUM> of the circuit board <NUM> is the same as the number of storage components that can be carried by the component housing <NUM>. Further, a number of slits may be further formed by the bottom area of the circuit board and the component housing. However, the number of the plurality slits is not limited thereto. In some embodiments, the number of the plurality slits may be greater than or less than the number of storage components that can be carried by the component housing depending on the arrangement of the slits in the circuit boards.

In some other embodiments, the component housing <NUM> further comprises flanges <NUM> extending from the sides of the component housing <NUM>. In some embodiments, the flanges <NUM> can correspondingly overlap the front panel <NUM> and the stress distributing member <NUM>. Further, the flanges <NUM> can correspondingly fastened top surface of the front panel <NUM> and top surface of the stress distributing member <NUM>.

According to one embodiment of the present disclosure, <FIG> illustrates <FIG> without showing the device docks <NUM> and the storage drives D. As depicted by <FIG>, when all the device docks <NUM> and the storage drives D are removed from the receiving frame structure <NUM> of a component housing <NUM>, the circuit board <NUM> arranged behind the component housing <NUM> can be seen from the front thereof. In other words, the receiving frame structure <NUM> is a box with its front being empty and back being the circuit board <NUM>. In one embodiment, one circuit board <NUM> comprises multiple columns of slits <NUM>, and the number of columns of slits <NUM> is corresponding to the number of columns of storage drives D. In other words, each column of device docks <NUM> with storage drives D therein can have a column of slits <NUM> therebehind. Therefore, air passing through the passages P of the component housings <NUM> can flow into the central corridor SC effectively without converging horizontally. In one embodiment of the present disclosure, the slits <NUM> comprise at least a major slit <NUM> and a minor slit <NUM>. As depicted in <FIG>, the major slits <NUM> are arranged at non-edge portion of the circuit board <NUM>, whereas the minor slits <NUM> are arranged at edge portion of the circuit board <NUM>. In other words, the major slits <NUM> are holes on the circuit board <NUM>, and the minor slits <NUM> are notches at the edge of the circuit board <NUM>. In one embodiment of the present disclosure, the circuit board <NUM> comprises at least a minor slit <NUM> at its top edge. In another embodiment, the circuit board <NUM> comprises minor slits <NUM> at both top edge and bottom edge thereof. In yet another embodiment, the circuit board <NUM> further comprises a plurality of drive connectors <NUM> configured to couple to the storage drives D. Since the drive connectors <NUM> is one of the major components that retains heat, each of the drive connectors <NUM> is arranged in proximity to any one of the slits <NUM> for effective cooling thereof. Though the slits <NUM> are shown long and narrow, it should be understood that the slits <NUM> are not limited in shape in practice as long as they allow the air from the passages P to pass through. For example, each slit <NUM> can be substituted with multiple equivalent round holes.

<FIG> is a partial enlargement PE of <FIG> according to one embodiment of the present disclosure. The stress distributing member <NUM> is arranged across the deck <NUM> in a side-to-side direction between the side walls <NUM> with respect to the server system <NUM> and configured to increase the structural strength of the deck <NUM> of the server system <NUM>. The stress distributing member <NUM> comprises a frame <NUM> and a plurality of dividers <NUM>. The stress distributing member <NUM> is perforated to form a plurality of openings <NUM>. The plurality of openings <NUM> are defined between the plurality of dividers <NUM> within the frame <NUM>. In some embodiments, the plurality of openings <NUM> are aligned to the lateral separation between the circuit boards. In other words, the area of the stress distributing member aligned to the central corridor is perforated. The plurality of openings <NUM> not only allows the air drawn by the fan module <NUM> from the central corridor SC to pass the stress distributing member <NUM>, but also allows cables (not shown) coupled to the circuit boards <NUM> to pass through as well, and hence the cables can couple to the motherboard. The server system <NUM> further comprises a spine (second support) <NUM> arranged between the component housings <NUM> and is perpendicular to the stress distributing member <NUM> and the front panel <NUM> as such. Furthermore, the spine <NUM> comprises a web (body) <NUM> and a plurality of flanges (wings) <NUM>. The web <NUM> arranged between the front panel <NUM> and the stress distributing member <NUM> has two ends; one end of the web <NUM> extends toward the front panel <NUM>, whereas the other end of the web <NUM> extends toward the stress distributing member <NUM>. The plurality of flanges <NUM> extending perpendicularly to the deck <NUM> at the two ends of the web <NUM> are configured to couple the spine <NUM> to the stress distributing member <NUM> and the internal frame <NUM>. As such, the structural strength of the server system <NUM> between the stress distributing member <NUM> and the front panel <NUM> is increased by the spine <NUM>. It should be noted that, the spine <NUM> is not necessary to be in direct contact with the deck <NUM>. However, the support <NUM> can be connected directly to the deck <NUM> and/or the component housings <NUM> for further structural reinforcement of the server system <NUM>. In one embodiment of the present disclosure, the spine <NUM> comprises two flanges <NUM> at each end. At the end proximal to the stress distributing member <NUM>, and the two flanges <NUM> each couple to one of the dividers <NUM> of the stress distributing member <NUM>, and thus allowing air and cables (not shown) from the circuit boards <NUM> to pass through therebetween. At the end proximal to the front panel <NUM>, the cables (not shown) from a UI module <NUM> pass between the flanges <NUM>. In sum, both cables from the circuit boards <NUM> and the UI module <NUM> can be neatly arranged between the flanges <NUM> of the spine <NUM>.

According to one embodiment of the present disclosure, <FIG> illustrates a front view of the front panel <NUM>; <FIG> is a simplified illustration of a B-B cross-sectional view of <FIG>. The server system <NUM> further comprises an UI module <NUM> installed in the middle of the front panel <NUM> between the external frame <NUM> and the internal frame <NUM>, such that at least partially divides the collecting space CS into two equal sections. Moreover, the UI module <NUM> is configured to separate the collecting space CS from the central corridor SC.

<FIG> illustrates the server system <NUM>, and <FIG> shows a partial enlargement PE of <FIG>. In one embodiment of the present disclosure, in the periphery corridor FC, the deck <NUM> further comprises a bump <NUM> between a component housing <NUM> and a door <NUM> corresponding to the component housing <NUM>. In other words, the bump <NUM> is protruding from a planar surface of the deck <NUM> and arranged between the front end of the component housing <NUM> and a periphery of the deck <NUM>. The bump <NUM> is configured to support the device docks <NUM> and the storage drives D at the most bottom row of the component housing <NUM> when the storage drives D are inserted to or removed from the receiving frame structure <NUM> of the component housing <NUM>. Therefore, the device docks <NUM> at the most bottom row are prevented from rubbing against the deck <NUM> due to the weight of the storage drives D.

In one embodiment of the present disclosure, the fan module <NUM> comprises a fan bracket <NUM> and a plurality of fan units <NUM> disposed therein as shown in <FIG>. <FIG> illustrates the server system <NUM> having the fan mounts <NUM>, and <FIG> shows a partial enlargement PE of <FIG>; <FIG> illustrates a front view of the fan module <NUM>, and <FIG> illustrates a bottom view of the fan module <NUM>; <FIG> is a simplified illustration of C-C cross-section of <FIG>. In one embodiment of the present disclosure, the pair of fan mounts <NUM> are fixed to the side walls <NUM> without direct connection to the deck <NUM>. In other words, the pair of fan mounts <NUM> are floating with respect to the deck <NUM>. Each of the fan mounts <NUM> comprises a guiding structure <NUM> which is configured to couple to the fan module <NUM>. As shown in <FIG>, the fan bracket <NUM> of the fan module <NUM> comprises two recess portions <NUM>, which looks like a notch at each lower corner, is arranged one at a side of the fan bracket <NUM>. In <FIG>, the fan bracket <NUM> further comprises two receiving structures <NUM> integrated on the recess portions <NUM> and configured to receive the guiding structures <NUM> of the fan mounts <NUM>. As depicted by <FIG>, the guiding structure <NUM> can be an upward protrusion standing vertically with respect to the deck <NUM> ; the receiving structures <NUM> can be apertures located at a downward facing portion of the recess portions <NUM> as shown in <FIG>. Therefore, installation of the fan bracket <NUM> of the fan module <NUM> to the server system <NUM> can be guided by alignment between the receiving structures <NUM> and corresponding guiding structures <NUM>. It should be noted that, the recess portions <NUM> of the fan bracket <NUM> is not only configured to guide the installation to the fan mounts <NUM> by the receiving structures <NUM> formed thereon, but also to allows the cables <NUM> from the circuit boards <NUM> and the UI module <NUM> to bypass the fan module <NUM> between corners of the fan module <NUM>, the side walls <NUM>, and the deck <NUM>. As shown in <FIG>, a cable channel CC is defined between the side walls <NUM>, the deck <NUM>, and the recess portions <NUM> of the fan bracket <NUM>, and the cable channel CC is configured to accommodate the cables <NUM> and which run from the circuit boards <NUM> and the UI module <NUM> to the motherboard arranged behind the fan module <NUM>. Therefore, bypassing of the fan module <NUM> is achieved by the cable channel CC below the recess portions <NUM>. In another embodiment, a plurality of fan units <NUM> can be installed to the server system <NUM> without the fan bracket <NUM>, in which the plurality of fan units <NUM> are arranged in a door to door direction with respect to the server system <NUM>.

<FIG> is a partial enlargement of <FIG>. In one embodiment of the present disclosure, the door <NUM> can comprise at least one seal <NUM>. As depicted by <FIG>, the door <NUM> comprises two seals <NUM> on inner face thereof and a door hinge <NUM> coupled to the top cover <NUM>. As such, the door <NUM> can be opened by lifting one end proximal to the deck <NUM>. However, in another embodiment, the door hinge <NUM> can also be coupled to the deck <NUM>, such that facilitate the door <NUM> to be opened by dropping one end proximal to the top cover <NUM>. When the door <NUM> is closed, one seal <NUM> is arranged proximal to the deck <NUM>, whereas the other seal <NUM> is arranged proximal to the top cover <NUM>. In other words, one seal <NUM> is installed near the door hinge <NUM>, while the other is installed away from the door hinge <NUM>.

In one embodiment of the present disclosure, the plurality of storage drives D is <NUM>-inch in size. A <NUM>-inch storage drive usually outperforms a <NUM>-inch storage drive in cache size, RPM (revolution per minute), maximum storage capacity, data transfer speed, and price. However, the <NUM>-inch storage drive has a higher power consumption than a <NUM>-inch storage drive, hence higher operational temperature. The high operational temperature in combination with the component housing <NUM> being tightly packed with the <NUM>-inch storage drives D, cooling of the server system <NUM> becomes a very serious issue. According to a cooling test result shown in <FIG>, the cooling arrangement in <FIG> cools the storage drives D in operation with a result of temperature difference at <NUM> degrees Celsius and highest temperature at <NUM> degrees Celsius between the storage drives D. The low temperature difference shows an even and balance cooling across the storage drives D, whereas the highest temperature being lower than <NUM> degrees Celsius satisfies the general industrial standard of being safe and stable. It should be noted that, the air flowing within the server system <NUM> between the fan module <NUM> and the front panel <NUM> is laminar flow, and the air flowing between the fan module <NUM> and the back panel <NUM> is turbulent flow, and the same cooling arrangement can be applied to the storage drives D in <NUM> inch, as long as the physical capacity of the receiving frame structure <NUM> occupied by the device docks <NUM> and the storage drives D is more than <NUM>%.

Moreover, the weight of a <NUM>-inch storage drive is approximately four times of the weight of a <NUM>-inch storage drive. Therefore, carrying twenty-four <NUM>-inch storage drives D at a front portion FP of the server system <NUM> as shown in <FIG> puts a lot of stress to the deck <NUM>. <FIG> illustrates the server system <NUM> with a third support <NUM> according to one embodiment of the present disclosure. To further enhance the structural strength of the deck <NUM>, the third support <NUM>, other than the stress distributing member <NUM> and the spine <NUM>, can be included in the central corridor SC and coupled between the stress distributing member <NUM> and the internal frame <NUM>. However, the server system <NUM> can include at least one from the stress distributing member <NUM>, the spine <NUM>, and the third support <NUM> in any combination thereof according to one embodiment of the present disclosure.

It should be noted that, though all the exemplary illustrations are decked on a 2U rack mount server, any embodiment of the present disclosure can be incorporated in any other rack mount servers with different dimension, such as 4U, 6U, and 8U rack mount servers.

<FIG> illustrates an isometric view of a server system mounted to a rack according to one embodiment of the present disclosure. In some embodiments, the racking rails <NUM> (as shown in <FIG>) includes an outer rail <NUM>, an inner rail <NUM> mechanically attached to the outer rail <NUM>, and a supporting bracket 603a, 603b, 603c, and 603d mechanically attached to the inner rail <NUM>. In some embodiments, the inner rail <NUM> are arranged to mechanically move along the outer rail <NUM>. In some embodiments, the supporting bracket 603a (as shown in <FIG>) may be a plate bracket having one end fastened to the inner rail <NUM> and the other end fastened to the enclosure <NUM>. In an exemplary embodiment, the supporting bracket 603a is fastened to the side wall of the enclosure <NUM>. The plate bracket may be an L-shaped plate bracket. In some embodiments, the supporting bracket 603b (as shown in <FIG>) may be a triangle support bracket having one side fastened to the inner rail <NUM> and another side fastened to the enclosure <NUM>. Further, the supporting bracket 603b has a gusset fastened to the ends of the two sides. In an exemplary embodiment, the supporting bracket 603b is fastened to the back panel of the enclosure <NUM>. In some embodiments, the supporting bracket 603c (as shown in <FIG>) may be a triangle support bracket having one side fastened to the inner rail <NUM> and another side fastened to the enclosure <NUM>. In an exemplary embodiment, the supporting bracket 603c is fastened to the back panel of the enclosure <NUM>. Further, the supporting bracket 603c has two gussets. A first gusset is fastened to the ends of the two sides. A second gusset fastened between the first gusset and the side fastened to the inner rail <NUM>. In some embodiments, the supporting bracket 603d (as shown in <FIG>) may be a triangle support bracket having one side fastened to the inner rail <NUM> and another side fastened to the enclosure <NUM>. Further, the supporting bracket 603d has a gusset fastened to the ends of the two sides. Also, the supporting bracket 603d has a flange extending from the side fastened to the inner rail <NUM>. The flange having an end fastened to the side wall of the enclosure <NUM>.

Accordingly, one aspect of the instant disclosure provides an enclosure that comprises a deck; a top cover disposed over the deck; a pair of side walls, a pair of side doors, and a front panel disposed between the deck and the top cover, wherein the pair of side doors being arranged perpendicular to the front panel, each of the pair of side doors being arranged at substantially straight angle with one of the pair of side walls, the enclosure having a rear section defined by an area between the pair of side walls and a front section defined by an area between the pair of side doors; a pair of component housings arranged in the front section, wherein each of the component housing having a front end facing one of the side doors and a back end facing another one of the side doors; and a pair of circuit boards respectively arranged to cover the back ends of the component housings, wherein each of the circuit boards are perforated to form a plurality of slits, a central corridor is defined by a distance between the pair of circuit boards, the plurality of slits are configured to allow air exhausted from the front end of the component housing to flow towards the central corridor; the slits are arranged to expose back ends of the storage component.

In some embodiments, the enclosure further comprises a stress distributing member that traverses an entire width of the deck, the stress distributing member being arranged perpendicular to the pair of side walls and the pair of side doors.

In some embodiments, the stress distributing member comprises a pair of door stops protruding from areas of the stress distributing member and arranged between the side doors and the component housings, the door stops configured to seal a gap between the side doors and the side walls.

In some embodiments, the enclosure further comprises a spine mechanically attached to the deck and traversing across a length of the front section and extending beyond the stress distributing member.

In some embodiments, the pair of side walls are fastened to ends of the stress distributing member.

In some embodiments, the pair of side doors are mechanically attached to the top cover and configured to angle away from the enclosure.

In some embodiments, each of the pair of side doors comprises a door panel configured to angle away from a corresponding side wall; and a sealing flange configured to angle away from the top cover.

In some embodiments, the enclosure further comprises a seal strip disposed between the deck and the top cover and attached to the top cover. A thickness of the seal strip is no less than a distance between the top cover and the sealing flange when the side door is at rest.

In some embodiments, each of the component housing has a top surface and a bottom surface respectively fastened to the top cover and the deck.

In some embodiments, the component housing is configured to receive electronic devices in a stacked array formation.

In some embodiments, the front panel comprises an external frame; and an internal frame opposite the external frame. A collecting space is formed between the external frame and the internal frame. The components housing abuts the internal frame. An area of perforation of the external frame is greater than an area of perforation of the internal frame. The internal frame is perforated in an area projectively across the extending part of the stress distributing member.

Accordingly, one aspect of the instant disclosure provides an enclosure that comprises a deck; a top cover disposed over the deck; a pair of side doors, and a front panel disposed between the deck and the top cover; a stress distributing member that traverses an entire width of the deck; a pair of component housings arranged between the stress distributing member and the front panel. Each of the component housing has a front end and a back end opposite the front end, the stress distributing member extends beyond the front ends of the component housings, the front end of the component housings, the side door, the top cover, the deck, and an extending portion of the stress distributing member form a lateral separation that defines a periphery corridor.

In some embodiments, the enclosure further comprises a spine disposed between the stress distributing member and the deck, arranged perpendicular to the stress distributing member, and extending in opposite directions of the stress distributing member.

In some embodiments, the enclosure further comprises a pair of circuit boards arranged between the pair of component housings and each at an angle from the deck, wherein each of the circuit boards are perforated to form a plurality of slits, a central corridor is defined by a distance between the pair of circuit boards, the front end of the component housing are perforated to allow air from outside the component housing to flow towards the central corridor through the slits, the slits are arranged along the back end of the component housing.

In some embodiments, the enclosure further comprises a pair of side walls fastened to corresponding ends of the stress distributing member.

In some embodiments, the enclosure further comprises a seal strip disposed between the side door and the top cover, the seal strip configured to prevent air from entering through a space between the side door and the top cover.

In some embodiments, the front panel comprises an external frame that is perforated; and an internal frame that is perforated and disposed opposite the external frame. A collecting space is formed between the external frame and the internal frame, the components housing is fastened to the front panel, an area of perforation of the external frame is greater than an area of perforation of the internal frame, the area of perforation of the internal frame is arranged between the front end of the component housing and the side door.

Claim 1:
An enclosure, comprising:
a deck (<NUM>);
a top cover (<NUM>) disposed over the deck (<NUM>);
a pair of side walls (<NUM>), a pair of side doors (<NUM>), and a front panel (<NUM>) disposed between the deck (<NUM>) and the top cover (<NUM>), wherein:
the pair of side doors (<NUM>) are arranged perpendicular to the front panel (<NUM>),
each of the pair of side doors (<NUM>) is arranged at substantially straight angle with one of the pair of side walls (<NUM>), and
the enclosure has a rear section defined by an area between the pair of side walls (<NUM>) and a front section defined by an area between the pair of side doors (<NUM>);
a pair of component housings (<NUM>) arranged in the front section, wherein each of the component housings (<NUM>) has a front end facing one of the side doors (<NUM>) and a back end facing another one of the side doors (<NUM>);
a stress distributing member (<NUM>) traversing an entire width of the deck (<NUM>), the stress distributing member being arranged perpendicular to the pair of side walls and the pair of side doors;
a pair of door stops (<NUM>) protruding from areas of the stress distributing member (<NUM>) and arranged between the side doors (<NUM>) and the component housings (<NUM>), the pair of door stops (<NUM>) configured to seal a gap between the side doors (<NUM>) and the side walls (<NUM>); and
a pair of circuit boards (<NUM>) respectively arranged to cover the back ends of the component housings (<NUM>), wherein:
each of the circuit boards (<NUM>) is perforated to form a plurality of slits (<NUM>),
a central corridor (SC) is defined by a distance between the pair of circuit boards (<NUM>),
the plurality of slits (<NUM>) is configured to allow air exhausted from the front end of the component housings (<NUM>) to flow towards the central corridor (SC), and
the slits (<NUM>) are arranged to expose back ends of a plurality of storage components.