Cabinet and server

Abstract

A cabinet and a server, wherein the cabinet includes a shell, a front bracket, and a rear bracket. The shell includes side panels and a bottom panel, a mounting space is formed inside the shell, and an opening is provided on the front side of the shell. The front bracket is slidably disposed on the bottom shell plate, the front bracket can be slid out or slid into the mounting space through the opening, the front bracket is formed with a lower holding area and a front holding area, the front holding area is located on top of the lower holding area, the lower holding area is used to hold an expansion card, and the front holding area is used to hold a hardware, and the hardware is inserted into the expansion card. The rear bracket is secured to the front bracket, and a rear containment area is formed in the rear bracket for mounting a fan, the rear containment area being located above the lower containment area and behind the front containment area, and a flip plate is provided on top of the rear bracket, and the flip plate can be flipped relative to the rear bracket to open the rear containment area so that the fan can be removed from the rear containment area without having to dismantle the shell's housing.

Description

[Technical Field]

[0001] This application relates to the field of server structure technology, specifically a host shell and a server. [Previous Technology]

[0002] Currently, servers are usually equipped with fans. During the use of the server, the fans need to be removed from the server periodically for maintenance or replacement. However, due to the compact structure of the server, it is usually necessary to use tools to open the outer shell of the host to remove the fan. The operation is complicated and time-consuming, so there is a problem of inconvenience in maintenance. [Summary of the Invention]

[0003] In view of this, it is necessary to provide a main unit housing that facilitates the disassembly and assembly of the fan and a server having the main unit housing.

[0004] In one embodiment of this application, a host housing is provided, including a housing, a front bracket, and a rear bracket. The housing includes a side shell plate and a bottom shell plate connected perpendicularly. An installation space is formed inside the housing next to the side shell plate, and an opening communicating with the installation space is provided on the front side of the housing. The front bracket is slidably disposed on the bottom shell plate. The front bracket can slide out or slide into the installation space through the opening. A lower receiving area and a front receiving area are formed inside the front bracket. The front receiving area is located above the lower receiving area. The lower receiving area is used to receive an expansion card, and the front receiving area is used to receive hardware, which is inserted into the expansion card. The rear bracket is fixed to the front bracket. A rear receiving area for installing a fan is formed inside the rear bracket. The rear receiving area is located above the lower receiving area and behind the front receiving area. A flip plate is provided on the top of the rear bracket. The flip plate can be flipped relative to the rear bracket to open or cover the rear receiving area.

[0005] When the front bracket and the rear bracket slide out of the installation space, the flip plate is outside the opening, so that the flip plate can open the rear receiving area for the fan to enter and exit the rear receiving area; when the flip plate covers the rear receiving area, the rear bracket and the front bracket can slide into the installation space so that the fan and the expansion card can be connected to the motherboard of the main unit case.

[0006] When using the aforementioned host case, if it is necessary to remove the fan inside the host case, simply pull out the front bracket. The rear bracket will slide out of the installation space along with the front bracket. After sliding out, the flip panel is located outside the opening. Then, rotate the flip panel to open the rear receiving area, and the fan can be removed from the rear receiving area. After putting the fan back into the rear receiving area, simply push back the front bracket. The rear bracket will slide into the installation space along with the front bracket, and the fan and expansion card will naturally connect to the host case's motherboard. The host case improves the convenience of fan installation and removal through the above method, eliminating the need to disassemble the host case's outer shell, making fan installation and removal easier.

[0007] In some embodiments, the front bracket includes a base plate, the base plate protruding towards the bottom shell plate to form a ridge, the ridge is provided with a groove, the groove passes through the rear end of the ridge to form a through hole, the bottom shell plate is provided with a plurality of pins arranged along the length of the ridge, the pins can slide in the groove, when the front bracket slides into or out of the installation space, the pins can enter or leave the groove through the through hole, the head of the pin is used to limit the front bracket so that the front bracket does not detach from the bottom shell plate.

[0008] In some embodiments, the front support further includes a first side plate and a second side plate, which are respectively connected to opposite sides of the base plate. The first side plate is the side of the front support away from the side shell plate, and the second side plate is the side of the front support close to the side shell plate. A lower receiving area is formed between the base plate, the first side plate and the second side plate, and a front receiving area is formed between the first side plate and the second side plate. A rear support is installed behind the first side plate and the second side plate. The length of the lower receiving area is greater than or equal to the sum of the lengths of the front receiving area and the rear receiving area.

[0009] In some embodiments, the front bracket is equipped with a layered plate in the lower receiving area, which divides the lower receiving area into an upper layer and a lower layer. The expansion card is located in the upper layer and is supported by the layered plate. The main housing also includes a cable chain, one end of which extends from the rear end of the layered plate to the upper layer and connects to the rear end of the expansion card. The other end of the cable chain is located in the lower layer and is fixed to the bottom housing plate by a fixing piece. The cable chain is used to accommodate the cable of the expansion card. The bottom of the first side plate is provided with a clearance opening, and the fixing piece extends out of the clearance opening to be fixed to the bottom housing plate. The clearance opening allows the front bracket to avoid the fixing piece when sliding.

[0010] In some embodiments, the rear support includes a third side plate, a fourth side plate and a top plate. The third side plate and the fourth side plate are disposed on opposite sides of the top plate. The third side plate is installed on the first side plate and the fourth side plate is installed on the second side plate. A rear receiving area is formed between the third side plate and the fourth side plate. The rear support has a right-angle plate in the rear receiving area. The horizontal plate of the right-angle plate is used to support the fan. The vertical plate of the right-angle plate is connected to the flip plate by a pivot. The flip plate rotates around the pivot.

[0011] In some embodiments, the top plate is provided with a positioning hole, and the flip plate includes a pressure plate and a positioning plate that are perpendicular to each other. The positioning plate is provided with a positioning pin. When the positioning pin is inserted into the positioning hole, the pressure plate presses down on the fan and presses the fan onto the horizontal plate to fix the fan. When the positioning pin is disengaged from the positioning hole, the flip plate can rotate around the pivot to open the rear receiving area.

[0012] In some embodiments, the side shell plate is provided with a fan connector, and the fourth side plate is provided with a notch aligned with the fan connector. When the front bracket and the rear bracket slide into the installation space, the fan connector is inserted into the fan to power the fan. The notch is used to avoid the fan connector.

[0013] In some embodiments, the vertical plate is provided with a vent for the fan to pass through the vertical plate so that the fan can dissipate heat from the hardware.

[0014] In some embodiments, the base plate is provided with a first through hole, the bottom shell plate is provided with a second through hole, the base plate is provided with a spring piece, one end of the spring piece is fixed to the base plate, and the other end extends out to form a handle. The spring piece is provided with an insert piece. When the front bracket slides into the installation space, the first through hole is aligned with the second through hole, and the insert piece passes through the first through hole and the second through hole to position the front bracket. When the handle is lifted, the insert piece disengages from the first through hole and the second through hole, so that the front bracket can slide out of the installation space.

[0015] In one embodiment of this application, a server is provided, including a fan and a host housing as described in any of the above embodiments.

Implementation Method

[0016] The technical solution of this application will be described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments.

[0017] It should be noted that when an element is considered to be "connected to" or "located on" another element, it can be directly connected to the other element or may have an element centrally located. In this application, unless otherwise expressly specified and limited, the terms "installed," "connected," "fixed," etc., should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0018] In the description of the embodiments of this application, the meaning of "multiple" can also be two or more, unless otherwise explicitly specified. The shape descriptions such as length, thickness, and width in the embodiments of this application are merely illustrative and should not constitute any absolute limitation on this application. The terms "vertical" and "horizontal" are used to describe the ideal state between two components. In actual production or use, there may be a state that is approximately vertical or horizontal.

[0019] The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Where there is no conflict, the various embodiments in this application may be combined with each other.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms “comprising,” “having,” and “equipped with,” and any variations thereof, in the specification, claims, and foregoing description of the drawings, are intended to cover non-exclusive inclusion.

[0021] Currently, servers are usually equipped with fans. During the use of the server, the fans need to be removed from the server periodically for maintenance or replacement. However, due to the compact structure of the server, it is usually necessary to use tools to open the outer shell of the host to remove the fan. The operation is complicated and time-consuming, so there is a problem of inconvenience in maintenance.

[0022] In view of this, it is necessary to provide a main unit housing that facilitates the installation and removal of the fan and a server having the main unit housing. The main unit housing includes a casing, a front bracket, and a rear bracket. The casing includes a side shell plate and a bottom shell plate that are perpendicularly connected. An installation space is formed inside the casing next to the side shell plate, and an opening communicating with the installation space is provided on the front side of the casing. The front bracket is slidably mounted on the bottom shell plate. The front bracket can slide out or slide into the installation space through the opening. A lower receiving area and a front receiving area are formed inside the front bracket. The front receiving area is located above the lower receiving area. The lower receiving area is used to receive an expansion card, and the front receiving area is used to receive hardware, which is inserted into the expansion card. The rear bracket is fixed to the front bracket. A rear receiving area for installing the fan is formed inside the rear bracket. The rear receiving area is located above the lower receiving area and behind the front receiving area. A flip plate is provided on the top of the rear bracket. The flip plate can be flipped relative to the rear bracket to open or cover the rear receiving area. When the front and rear brackets slide out of the mounting space, the flip plate is outside the opening, allowing the flip plate to open the rear receiving area for the fan to enter and exit the rear receiving area; when the flip plate covers the rear receiving area, the rear and front brackets can slide into the mounting space so that the fan and expansion card can connect to the motherboard of the main unit case.

[0023] When using the aforementioned host case, if it is necessary to remove the fan inside the host case, simply pull out the front bracket. The rear bracket will slide out of the installation space along with the front bracket. After sliding out, the flip panel is located outside the opening. Then, rotate the flip panel to open the rear receiving area, and the fan can be removed from the rear receiving area. After putting the fan back into the rear receiving area, simply push back the front bracket. The rear bracket will slide into the installation space along with the front bracket, and the fan and expansion card will naturally connect to the host case's motherboard. The host case improves the convenience of fan installation and removal by means of the above method, without having to disassemble the host case's outer shell, making it easier to install and remove the fan.

[0024] Some embodiments of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] Please refer to Figures 1 to 5. In one embodiment of this application, a server 200 is provided, including a host housing 100 and a fan 300. The host housing 100 includes a shell 10, a front bracket 20, and a rear bracket 30. The shell 10 includes a side shell plate 11 and a bottom shell plate 12 that are perpendicularly connected. An installation space 13 is formed inside the shell next to the side shell plate 11. An opening 14 communicating with the installation space 13 is provided on the front side of the shell 10. The front bracket 20 is slidably disposed on the bottom shell plate 12. The front bracket 20 can slide out or slide into the installation space 13 through the opening 14. A lower receiving area 20a and a front receiving area 20b are formed inside the front bracket 20. The front receiving area 20b is located above the lower receiving area 20a. The lower receiving area 20a is used to receive an expansion card 201, and the front receiving area 20b is used to receive hardware 202. The hardware 202 is inserted into the expansion card 201. The rear bracket 30 is fixedly installed on the front bracket 20. The rear bracket 30 has a rear receiving area 30a for installing the fan 300. The rear receiving area 30a is located above the lower receiving area 20a and behind the front receiving area 20b. The top of the rear bracket 30 is provided with a flip plate 40. The flip plate 40 can be flipped relative to the rear bracket 30 to open or cover the rear receiving area 30a, so that the fan 300 can enter and exit the rear receiving area 30a.

[0026] As an example, the expansion card 201 is a Riser card, which can provide an additional slot on the motherboard of the server 200, so that the server 200 can connect more hardware 202. The hardware 202 is a PCIe (peripheral component interconnect express) card, which is a high-speed, high-bandwidth serial interconnect technology specifically designed to connect various peripherals on the computer motherboard, such as graphics cards, audio cards, network cards or hard disk drives.

[0027] When it is necessary to remove the fan 300 inside the main unit casing 100, the user only needs to pull out the front bracket 20 by hand. The rear bracket 30 will slide out of the installation space 13 along with the front bracket 20. After sliding out, the flip plate 40 is located outside the opening 14. Then the user only needs to open the rear receiving area 30a with the flip plate 40 and take out the fan 300 from the rear receiving area 30a.

[0028] When it is necessary to install the fan 300 back into the main unit case 100, the user only needs to place the repaired fan 300 back into the rear receiving area 30a, then cover the flip plate 40, and then push the front bracket 20 back. The rear bracket 30 will slide into the installation space 13 along with the front bracket 20. After sliding all the way in, the fan 300 and the expansion card 201 will naturally plug into the motherboard of the main unit case 100. As can be seen from the above, the main unit case 100 can improve the convenience of removing and installing the fan 300 by means of the above method, without having to disassemble the outer shell of the main unit case 100, making it easier to remove and install the fan 300.

[0029] In some embodiments, please refer to Figures 5 to 7. The front bracket 20 includes a base plate 21. The base plate 21 protrudes towards the bottom shell plate 12 to form a ridge 211. The ridge 211 is provided with a groove 212. The groove 212 passes through the rear end of the ridge 211 to form a through-hole 213. The bottom shell plate 12 is provided with a plurality of pins 121 arranged along the length of the ridge 211. The pins 121 can slide within the groove 212. When the front bracket 20 slides into or out of the mounting space 13, the pins 121 can enter or leave the groove 212 through the through-hole 213. The head of the pin 121 is used to limit the front bracket 20 so that the front bracket 20 does not detach from the bottom shell plate 12.

[0030] In some embodiments, the front support 20 further includes a first side plate 22 and a second side plate 23, the first side plate 22 and the second side plate 23 being respectively connected to opposite sides of the base plate 21. The first side plate 22 is the side of the front support 20 away from the side shell plate 11, and the second side plate 23 is the side of the front support 20 close to the side shell plate 11. The lower receiving area 20a is formed between the base plate 21, the first side plate 22 and the second side plate 23, and the front receiving area 20b is formed on the first side plate. Between the first side plate 22 and the second side plate 23, the rear bracket 30 is installed behind the first side plate 22 and the second side plate 23. The length of the lower receiving area 20a is greater than or equal to the sum of the lengths of the front receiving area 20b and the rear receiving area 30a. Because the expansion card 201 is placed horizontally in the lower receiving area 20a and the length of the expansion card 201 is relatively long, the hardware 202 and the fan 300 are placed above the expansion card 201, with the hardware 202 in front and the fan 300 in the back, in order to improve space utilization.

[0031] In some embodiments, the front bracket 20 is equipped with a layered plate 24 in the lower receiving area 20a, which divides the lower receiving area 20a into an upper layer 20a1 and a lower layer 20a2. The expansion card 201 is located in the upper layer 20a1 and is supported by the top surface of the layered plate 24. The main housing 100 also includes a cable chain 50, one end of which extends from the rear end of the layered plate 24 to the upper layer 20a1 and connects to the rear end of the expansion card 201. The other end of the cable chain 50 is located in the lower layer 20a2 and is fixed to the bottom housing plate 12 by a fixing piece 51. The interior of the cable chain 50 is used to accommodate the cable of the expansion card 201, which is used to electrically connect the expansion card 201 and the main housing. The bottom of the first side plate 22 is provided with a recess 22a, and the fixing piece 51 extends out of the recess 22a and is installed in the bottom housing plate 12 by screws. The recess 22a allows the front bracket 20 to avoid the fixing piece 51 when sliding, preventing interference.

[0032] In some embodiments, please refer to Figures 5, 8 and 9. The rear support 30 includes a third side plate 31, a fourth side plate 32 and a top plate 33. The third side plate 31 and the fourth side plate 32 are disposed on opposite sides of the top plate 33. The third side plate 31 is installed on the first side plate 22 and the fourth side plate 32 is installed on the second side plate 23. The rear receiving area 30a is formed between the third side plate 31 and the fourth side plate 32. The rear support 30 is provided with a right-angle plate 60 in the rear receiving area 30a. The horizontal plate 61 of the right-angle plate 60 is used to support the fan 300. The vertical plate 62 of the right-angle plate 60 is connected to the flip plate 40 by a pivot 70. The flip plate 40 can rotate around the pivot 70.

[0033] In some embodiments, the top plate 33 is provided with a positioning hole 331, and the flip plate 40 includes a pressure plate 41 and a positioning plate 42 perpendicular to each other. The positioning plate 42 is provided with a positioning pin 421. When the positioning pin 421 is inserted into the positioning hole 331, the pressure plate 41 presses down on the fan 300 and presses the fan 300 against the horizontal plate 61 to fix the fan 300. When the positioning pin 421 is disengaged from the positioning hole 331, the flip plate 40 can rotate around the pivot 70 to open the rear receiving area 30a.

[0034] In some embodiments, please refer to Figures 3, 4, and 8. The side shell 11 is provided with a fan connector 80, and the fourth side plate 32 is provided with a notch 321, which is aligned with the fan connector 80. When the front bracket 20 and the rear bracket 30 slide into the mounting space 13, the fan connector 80 automatically engages with the fan 300, energizing the fan 300. The notch 321 is used to avoid interference between the fan connector 80 and the fourth side plate 32.

[0035] In some embodiments, the vertical plate 62 is provided with a vent 621, through which the air from the fan 300 passes to dissipate heat from the hardware 202.

[0036] In some embodiments, please refer to Figures 10 to 12. The base plate 21 is provided with a first through hole 21a, and the bottom shell plate 12 is provided with a second through hole 12a. A spring piece 90 is provided on the base plate 21. One end of the spring piece 90 is fixed to the base plate 21, and the other end extends out of the opening 14 to form a handle 91. The spring piece 90 is provided with an insert 92. When the front bracket 20 slides into the mounting space 13, the first through hole 21a is aligned with the second through hole 12a, and the insert 92 passes through the first through hole 21a and the second through hole 12a to position the front bracket 20. When the handle 91 is lifted by the user, the insert 92 disengages from the first through hole 21a and the second through hole 12a, allowing the front bracket 20 to slide out of the mounting space 13.

[0037] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the spirit and scope of this application shall fall within the scope of disclosure of this application. [Simplified Explanation of the Diagram]

[0038] Figure 1 is a perspective view of a portion of the server and host housing in one embodiment of this application.

[0039] Figure 2 is a perspective view of the main unit housing in Figure 1 when the front bracket and the rear bracket slide into the installation space.

[0040] Figure 3 is a perspective view of the main unit housing in Figure 2 when the front bracket and rear bracket slide out of the installation space.

[0041] Figure 4 is a perspective view of the main unit housing in Figure 3 after the fan has been removed from the rear housing space.

[0042] Figure 5 is an exploded view of the main unit casing in Figure 4.

[0043] Figure 6 is a perspective view of the bottom of the support in Figure 5.

[0044] Figure 7 is a perspective view of the top of the support in Figure 6.

[0045] Figure 8 is a perspective view of the rear side of the support in Figure 5.

[0046] Figure 9 is an enlarged view of point A in Figure 5.

[0047] Figure 10 is a perspective view of the handle of the main unit housing in one embodiment of this application.

[0048] Figure 11 is a perspective view of the main body shell in Figure 10 after the shell is removed from the handle.

[0049] Figure 12 is a three-dimensional view of the structure in Figure 11 from a top perspective.

Claims

1. A host housing, wherein the improvement is that the host housing comprises: A housing, comprising a side shell plate and a bottom shell plate perpendicularly connected, an installation space formed inside the housing next to the side shell plate, and an opening communicating with the installation space on the front side of the housing; a front bracket, slidably mounted on the bottom shell plate, the front bracket being able to slide out or slide into the installation space through the opening, the front bracket having a lower receiving area and a front receiving area formed therein, the front receiving area being located above the lower receiving area, the lower receiving area being used to receive an expansion card, and the front receiving area being used to receive hardware, the hardware being inserted into the expansion card; and a rear bracket, fixed to the front bracket, the rear bracket having a rear receiving area formed therein for installing a fan, the rear receiving area being located above the lower receiving area and behind the front receiving area, the top of the rear bracket having a flip plate, the flip plate being able to flip relative to the rear bracket to open or cover the rear receiving area;When the front bracket and the rear bracket slide out of the mounting space, the flip plate is located outside the opening, allowing the flip plate to open the rear receiving area for the fan to enter and exit the rear receiving area; when the flip plate covers the rear receiving area, the rear bracket and the front bracket can slide into the mounting space, allowing the fan and the expansion card to connect to the motherboard of the main unit housing; the front bracket includes a base plate, the base plate protruding towards the bottom shell plate to form a ridge, the ridge having a groove, the groove passing through the rear end of the ridge to form a through opening, the bottom shell plate having a plurality of pins arranged along the length of the ridge, the pins being able to slide within the groove, when the front bracket slides into or out of the mounting space, the pins being able to enter or disengage from the groove through the through opening, the head of the pin being used to limit the front bracket, so that the front bracket does not detach from the bottom shell plate; The front support also includes a first side plate and a second side plate, which are respectively connected to opposite sides of the bottom plate. The first side plate is the side of the front support away from the side shell plate, and the second side plate is the side of the front support close to the side shell plate. The lower receiving area is formed between the bottom plate, the first side plate, and the second side plate. The front receiving area is formed between the first side plate and the second side plate. The rear support is installed behind the first side plate and the second side plate. The length of the lower receiving area is greater than or equal to the sum of the lengths of the front receiving area and the rear receiving area. The rear support includes a third side plate, a fourth side plate, and a top plate. The third and fourth side plates are located on opposite sides of the top plate. The third side plate is mounted on the first side plate, and the fourth side plate is mounted on the second side plate. The rear receiving area is formed between the third and fourth side plates. A right-angle plate is provided within the rear receiving area of ​​the rear support. The horizontal plate of the right-angle plate supports the fan, and the vertical plate of the right-angle plate is connected to the flip plate via a pivot. The flip plate rotates around the pivot. The top plate has a positioning hole. The flip plate includes a perpendicular pressure plate and a positioning plate. The positioning plate has a positioning pin. When the positioning pin is inserted into the positioning hole, the pressure plate presses down on the fan, pressing it against the horizontal plate to fix the fan. When the positioning pin disengages from the positioning hole, the flip plate can rotate around the pivot to open the rear receiving area.

2. The host casing as described in claim 1, wherein: The front bracket is equipped with a layered plate in the lower receiving area, which divides the lower receiving area into an upper layer and a lower layer. The expansion card is located in the upper layer and is supported by the layered plate. The main housing also includes a cable chain, one end of which extends from the rear end of the layered plate to the upper layer and connects to the rear end of the expansion card. The other end of the cable chain is located in the lower layer and is fixed to the bottom shell plate by a fixing piece. The cable chain is used to accommodate the cable of the expansion card. The bottom of the first side plate is provided with a clearance opening, and the fixing piece extends out of the clearance opening to be fixed to the bottom shell plate. The clearance opening allows the front bracket to avoid the fixing piece when sliding.

3. The host casing as described in claim 1, wherein: The side panel is provided with a fan connector, and the fourth side panel is provided with a notch. The notch is aligned with the fan connector. When the front bracket and the rear bracket slide into the mounting space, the fan connector is inserted into the fan to power the fan. The notch is used to avoid the fan connector.

4. The host casing as described in claim 1, wherein: The vertical plate is provided with a ventilation opening, through which the airflow from the fan passes to dissipate heat from the hardware.

5. The host casing as described in claim 1, wherein: The base plate has a first through hole, the bottom shell plate has a second through hole, and the base plate has a spring piece. One end of the spring piece is fixed to the base plate, and the other end extends out of the opening to form a handle. The spring piece has an insert. When the front bracket slides into the mounting space, the first through hole aligns with the second through hole, and the insert passes through the first through hole and the second through hole to position the front bracket. When the handle is lifted, the insert disengages from the first through hole and the second through hole, allowing the front bracket to slide out of the mounting space.

6. A server, improved in that: the server includes a fan and a host housing as described in any one of claims 1 to 5.

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