CN104460885B - Cabinet and storage device - Google Patents

Cabinet and storage device Download PDF

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Publication number
CN104460885B
CN104460885B CN201410705824.9A CN201410705824A CN104460885B CN 104460885 B CN104460885 B CN 104460885B CN 201410705824 A CN201410705824 A CN 201410705824A CN 104460885 B CN104460885 B CN 104460885B
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CN
China
Prior art keywords
room
return piece
accommodating area
cabinet
dividing plate
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Active
Application number
CN201410705824.9A
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Chinese (zh)
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CN104460885A (en
Inventor
许寿标
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201410705824.9A priority Critical patent/CN104460885B/en
Publication of CN104460885A publication Critical patent/CN104460885A/en
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Publication of CN104460885B publication Critical patent/CN104460885B/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/18Packaging or power distribution
    • G06F1/183Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/18Packaging or power distribution
    • G06F1/181Enclosures

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The present invention discloses a kind of cabinet, including the first accommodating area and the second accommodating area being arranged side by side.Dividing plate is additionally provided with the cabinet, first accommodating area is separated into the first Room and second Room by the dividing plate, first Room communicates with the second Room with second accommodating area, ventilating opening is provided between first Room and the second Room, the ventilating opening is close to second accommodating area.The cabinet also includes the first anti-return piece and the second anti-return piece, ventilating opening is between the first anti-return piece and the second accommodating area, and ventilating opening is between the second anti-return piece and the second accommodating area, the first anti-return piece can rotate with the second anti-return piece relative to the dividing plate, for opening or closing the passage of first Room and the second Room.The present invention also provides a kind of storage device.The present invention can ensure that the radiating of storage device is normal, so as to ensure storage device normal work.

Description

Cabinet and storage device
Technical field
The present invention relates to technical field of network equipment, more particularly to a kind of storage device applied to server.
Background technology
With the high speed development of computer technology and network technology, the extensive use of big data, for storage system Performance And Reliability requires to improve constantly.One of the accessory of storage device as server is widely used, and in currently designed, deposits Storage equipment includes cabinet, and dividing plate is set in cabinet, to divide the chassis into multiple regions, in each region installation controller and with institute Interface card corresponding to controller, the corresponding interface card of the controller access are stated, while controller can also access next door The interface card in region.In order to ensure the normal work of controller, each controller is required to set fan, is in respective region Interface card and controller radiating.
In the case that some controller is pulled out maintenance, the fan in the region where the controller being pulled out is also required to stop Only work.But the interface card corresponding to the controller by being pulled out still is accessed by the controller in next door, it is still necessary to dissipates Heat.So, it is bad because radiating, easily there is the system failure, influence the normal work of storage office.
Therefore, how to ensure that single controller is extracted under maintenance condition, the radiating of corresponding interface card has no problem, and is exactly Current technology difficult point.
The content of the invention
The technical problems to be solved by the invention are, for solving storage device of the prior art, in single control Device is extracted under maintenance condition, the heat dissipation problem of corresponding interface card, and the present invention can ensure that the radiating of storage device is normal, so as to Ensure storage device normal work.
To achieve these goals, embodiment of the present invention provides following technical scheme:
On the one hand, the invention provides a kind of cabinet, the cabinet includes the first accommodating area being arranged side by side and second and received Hold area;It is additionally provided with dividing plate in the cabinet, first accommodating area is separated into the first Room and second Room by the dividing plate, and described One Room is communicated with the second Room with second accommodating area, and ventilating opening is provided between first Room and the second Room, The ventilating opening is close to second accommodating area;The cabinet also includes the first anti-return piece and the second anti-return piece, and described One anti-return piece is located at first Room, and the second anti-return piece is located at the second Room, and the ventilating opening is positioned at described the Between one anti-return piece and second accommodating area, and the ventilating opening is located at the second anti-return piece and housed with described second Between area, the first anti-return piece can rotate with the second anti-return piece relative to the dividing plate, to open or close institute State the passage of the first Room and the second Room.
Wherein, the cabinet includes bottom wall, roof and a pair of sidewalls being connected between the bottom wall and the roof, institute State that the front-end and back-end of cabinet are opening-like, the opening of the front end is used to controller installing first Room and described the Two Room, the opening of the rear end are used to interface board being attached to second accommodating area, the dividing plate be connected to the bottom wall and Between the roof, the dividing plate opens in the space between the opening of the front end and the first anti-return piece with the front end Mouth is isolated with the space between the second anti-return piece.
Wherein, it is additionally provided with support in the cabinet, the support is connected between the pair of side wall and by the cabinet First accommodating area and second accommodating area are separated into, close to the support, the support is used to install the ventilating opening Backboard, space is provided between the support and the roof, so as to lead between first accommodating area and second accommodating area Wind.
Wherein, the ventilating opening is arranged on the dividing plate, or the ventilating opening is arranged at the dividing plate and the branch Between frame.
Wherein, the first anti-return piece by a pair of axis of rotation be connected to the dividing plate and the pair of side wall it Between, the pair of rotating shaft is located at the both sides of the side of the close roof of the first anti-return piece, prevents back when described first When flow rotates relative to the dividing plate and opens the passage of first Room, the first anti-return piece fits in the roof.
On the other hand, the present invention also provides a kind of storage device, including the first controller, second controller, first interface Plate, second interface plate and cabinet, the cabinet include the first accommodating area and the second accommodating area being arranged side by side;In the cabinet also Provided with dividing plate, first accommodating area is separated into the first Room and second Room, first Room and the second Room by the dividing plate Communicated with second accommodating area, ventilating opening is provided between first Room and the second Room, the ventilating opening is close to institute State the second accommodating area;The cabinet also includes the first anti-return piece and the second anti-return piece, and the first anti-return piece is located at institute State the first Room, the second anti-return piece is located at the second Room, the ventilating opening be located at the first anti-return piece with it is described Between second accommodating area, and the ventilating opening is between the second anti-return piece and second accommodating area, and described first Anti-return piece and the second anti-return piece can rotate relative to the dividing plate, to open or close first Room and described the The passage of two Room;First controller and the second controller are contained in first Room and the second Room, institute respectively State first interface plate and the second interface plate is contained in second accommodating area, the first interface plate and the described first control Device and second controller interconnection, the second interface plate also interconnect with first controller and the second controller, First controller side wall adjacent with the dividing plate is provided with opening, the second controller side wall adjacent with the dividing plate Also opening is provided with, the opening is relative with the ventilating opening.
Wherein, the cabinet includes bottom wall, roof and a pair of sidewalls being connected between the bottom wall and the roof, institute State that the front-end and back-end of cabinet are opening-like, first controller and the second controller opening from the front end respectively Mouth is attached in first Room and the second Room, the first interface plate and second interface plate the opening from the rear end Mouthful second accommodating area is attached to, the dividing plate is connected between the bottom wall and the roof, and the dividing plate is before described The opening at end extends to the side of the opening away from the front end of the first, second anti-return piece.
Wherein, it is additionally provided with support in the cabinet, the support is connected between the pair of side wall and by the cabinet First accommodating area and second accommodating area are separated into, the ventilating opening also wraps close to the support, the storage device Backboard is included, the backboard is attached to the support, and space is provided between the backboard and the roof, so that described first houses Divulged information between area and second accommodating area.
Wherein, the ventilating opening is arranged on the dividing plate, or the ventilating opening is arranged at the dividing plate and the branch Between frame.
Wherein, the first anti-return piece by a pair of axis of rotation be connected to the dividing plate and the pair of side wall it Between, the pair of rotating shaft is located at the both sides of the side of the close roof of the first anti-return piece, prevents back when described first When flow rotates relative to the dividing plate and opens the passage of first Room, the first anti-return piece fits in the roof.
The present invention sets first to prevent back by setting ventilating opening between the first chamber and the second chamber, and in the first Room and second Room Flow and the second anti-return piece, when the controller in the first Room or second Room takes out maintenance or changed, the control in next door The air-flow of device flows into second Room by ventilating opening and entered back into the second accommodating area, and the first anti-return piece and the second anti-return piece are set Airflow reflux can be prevented by putting, and so as to ensure that the interface board for maintaining to take out controller side normally radiates, ensure interface board just Often work.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, the required accompanying drawing used in embodiment will be made below Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained such as these accompanying drawings.
Fig. 1 is the schematic perspective view for the cabinet that one embodiment of the present invention provides;
Fig. 2 is the schematic perspective view of the first controller of the storage device that one embodiment of the present invention provides;
Fig. 3 is the storage device floor map that one embodiment of the present invention provides;
When Fig. 4 is in the first controller insertion cabinet for the storage device that one embodiment of the present invention provides, first is anti- The schematic diagram of the location status of backflow piece;And
Fig. 5 is first anti-when the first controller of the storage device that one embodiment of the present invention provides is removed cabinet The schematic diagram of the location status of backflow piece, wherein arrow represent the direction of air current flow;
Fig. 6 is another when the first controller of the storage device that one embodiment of the present invention provides is removed cabinet The floor map in direction, wherein arrow represent the direction of air current flow.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear Chu, it is fully described by.
The present invention relates to the technical field of memory in server, is commonly stored equipment and is referred to as NAS (Network Attached Storage-network attached storage) head is exactly one nas server of addition in existing network, there is provided The storage of NAS file-level service, i.e. file.Usually in the front end of server or SAN network environmental front end addition NAS. The present invention relates to the structure design of the cabinet of storage device and storage device.Structure.
Referring to Fig. 1, cabinet 10 includes the first accommodating area 12 and the second accommodating area 14 being arranged side by side.First accommodating area 12 Positioned at the anterior section of close cabinet 10, for housing controller.Second accommodating area 14 is located at close to the rear portion section of cabinet 10, For housing interface card.Dividing plate 16 is additionally provided with the cabinet 10, first accommodating area 12 is separated into by the dividing plate 16 One Room 122 and second Room 124, first Room 122 communicate with the second Room 124 with second accommodating area 14.First Room 122 and second Room 124 are respectively used to house a controller.It is provided between first Room 122 and the second Room 124 logical Air port 18, the ventilating opening 18 is close to second accommodating area 14.Multiple regions can also be divided into second accommodating area 14, To house the interface card of difference in functionality.Generally, controller inserts the first Room 122 or second Room 124, interface from the front end of cabinet 10 Block from the rear end of cabinet 10 and insert the second accommodating area 14.
The cabinet 10 also includes the first anti-return piece 15 and the second anti-return piece 17, and the first anti-return piece 15 is positioned at described First Room 122, the second anti-return piece 17 are located in the second Room 124.The ventilating opening 18 is located at the first anti-return piece Between 15 and second accommodating area 14, and the ventilating opening 18 is located at the second anti-return piece 17 and second accommodating area Between 14.The first anti-return piece 15 is used to close the described away from the side of the second accommodating area 14 of the ventilating opening 18 The passage of first Room 122, the second anti-return piece 17 are used for remote second accommodating area 14 for closing the ventilating opening 18 The passage of the second Room 124 of side.The first anti-return piece 15 can be relatively described with the second anti-return piece 17 Dividing plate 16 rotates, and realizes that the passage of the first Room 122 is opened or closed to the first anti-return piece 15 by spinning movement, and same Two anti-return pieces 17 are used for the passage for opening or closing the second Room 124.
When controller is inserted into the first Room 122, during controller inserts, the opposed separators of the first anti-return piece 15 are promoted 16 rotate, and open the passage of the first Room 122, enter controller.When controller is taken out, the return of the first anti-return piece 15, The passage of the first Room 122 is closed again.The operating principle of second anti-return piece 17 is identical with the first anti-return piece 15, no longer retouches State.
The present invention between the first Room 122 and second Room 124 by setting ventilating opening 18, and in the first Room 122 and second Room First anti-return piece 15 and the second anti-return piece 17 are set respectively in 124, the controller in the first Room 122 or second Room 124 When taking out maintenance or change, the air-flow of the controller in next door flows into second Room 124 by ventilating opening 18 and enters back into the second receipts Hold in area 14, the setting of the first anti-return piece 15 and the second anti-return piece 17 can prevent airflow reflux, so as to ensure that maintenance takes The interface board for going out controller side normally radiates, and ensures interface board normal work.
Specifically, the cabinet 10 includes bottom wall 11, roof (not shown) and is connected to the bottom wall 11 and the top A pair of sidewalls 13 between wall, the front-end and back-end of the cabinet 10 are opening-like, and the opening of the front end is used for will control Device is attached to first Room 122 and the second Room 124, and the opening of the rear end is used to interface board being attached to described second Accommodating area 14, the dividing plate 16 are connected between the bottom wall 11 and the roof, and the dividing plate 16 is by the opening of the front end Space between the first anti-return piece isolates with the space between the front opening and the second anti-return piece, That is one end of dividing plate 16 is located at the opening position of the opening of the front end, the other end of dividing plate 16 is located at the first anti-return piece Between the second accommodating area 14, the first anti-return piece 15 is set 15 (or second anti-return pieces 17) side by side with the second anti-return piece 17 Put.
It is additionally provided with support 19 in the cabinet 10, the support 19 is connected between the pair of side wall 13 and by the machine Case 10 is separated into first accommodating area 12 and second accommodating area 14, and the ventilating opening 18 is described close to the support 19 Support 19 is used to install backboard, and backboard is used to realize the electrical connection between controller and interface board.The support 19 and the top Space is provided between wall, so as to be divulged information between first accommodating area 12 and second accommodating area 14.Generally, support 19 is close The bottom wall of cabinet 10 is set, and gap is left between backboard and the roof of interface board and cabinet 10, for ventilation.
In present embodiment, the ventilating opening 18 is arranged on the dividing plate 16, and ventilating opening 18 is arranged on leaning on for dividing plate 16 One end of nearly second accommodating area 14.In other embodiment, the ventilating opening 18 is arranged at the dividing plate 16 and the support 19 Between, that is to say, that by the length reduction of dividing plate 16 so that retain the space that can be divulged information between dividing plate 16 and support 19, make The first Room 122 is obtained to communicate with second Room 124.
The mode of rotation connection between first anti-return piece 15 and the second anti-return piece 17 and dividing plate 16 is not limited to one kind, First anti-return piece 15 and the second anti-return piece 17 can be rotationally connected with by dividing plate 16 and side wall 13 by rotating shaft, also or to incite somebody to action First anti-return piece 15 and the second anti-return piece 17 are rotationally connected with roof or bottom wall 11.In present embodiment, described first is anti- Backflow piece 15 is connected between the dividing plate 16 and the pair of side wall 13 by a pair of axis of rotation, and the pair of rotating shaft is located at The both sides of the side of the close roof of the first anti-return piece 15, when the 15 relatively described dividing plate of the first anti-return piece 16 rotate and when opening the passage of first Room 122, and the first anti-return piece 15 fits in the roof, when the first Room When controller in 122 takes out, the first anti-return piece 15 is in the presence of its own gravity, self-return, closes the first Room 122 Passage.The rotary principle of second anti-return piece 17 is identical with the rotary principle of the first anti-return piece 15, no longer describes.
Referring to Fig. 3, the present invention also provides a kind of storage device 100, including the first controller 20, second controller 40, First interface plate 30, second interface plate 50 and above-mentioned cabinet 10.First controller 20 and the second controller 40 are distinguished First Room 122 and the second Room 124 are contained in, the first interface plate 30 and the second interface plate 50 are contained in institute The second accommodating area 14 is stated, the first interface plate 30 interconnects with first controller 20 and the second controller 40, described Second interface plate 50 also interconnects with first controller 20 and the second controller 40.That is, first interface plate 30 It can carry out data transmission between first controller 20, data biography can also be carried out between the second controller 40 It is defeated.Second interface plate 50 is also such.
Referring to Fig. 2, Fig. 2 show the schematic diagram of the first controller 20, the controller 20 of second controller 40 and first Structure is identical, and first controller 20 and the second controller 40 side wall 13 adjacent with the dividing plate 16 are equipped with opening 90, the opening 90 is relative with the ventilating opening 18 on the cabinet 10.
The opening 90 of first controller 20 and the second controller 40 respectively from the front end of the cabinet 10 is installed In to first Room 122 and the second Room 124, the first interface plate 30 and the second interface plate 50 are from the rear end Opening 90 be attached to second accommodating area 14.
When opening 90 of first controller 20 from the front end of the cabinet 10 is inserted into the first Room 122, the first controller 20 During insertion, the opposed separators 16 of the first anti-return piece 15 are promoted to rotate, i.e. the first anti-return piece 15 is by the first controller 20 Jack up and, the passage of the first Room 122 is opened, referring to Fig. 4, making the first controller 20 be attached on backboard, to realize the first control Device 20 processed interconnects with first interface card and second interface card.
Referring to Fig. 5, when the first controller 20 is taken out, the first anti-return piece 15 returns in the presence of its own gravity Position, the passage of the first Room 122 is closed again.Referring to Fig. 6, when the first controller 20 is removed, radiating airflow controls from second The ventilating opening 18 of opening 90 and cabinet 10 of the device 40 through second controller enters the first Room 122, and the first anti-return piece 15 stops gas Flow back to so that air flow direction first interface plate 30, so as to ensure the proper heat reduction of first interface plate 30 and normal work.Fig. 5 With the direction in terms of the arrow in Fig. 6 being air-flow.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (10)

1. a kind of cabinet, it is characterised in that the cabinet includes the first accommodating area and the second accommodating area being arranged side by side;The machine Be additionally provided with dividing plate in case, first accommodating area is separated into the first Room and second Room by the dividing plate, first Room with it is described Second Room is communicated with second accommodating area, and ventilating opening, the ventilating opening are provided between first Room and the second Room Close to second accommodating area;
The cabinet also includes the first anti-return piece and the second anti-return piece, and the first anti-return piece is located at first Room, The second anti-return piece is located at the second Room, and the ventilating opening is located at the first anti-return piece and second accommodating area Between, and the ventilating opening is between the second anti-return piece and second accommodating area, the first anti-return piece with The second anti-return piece can rotate relative to the dividing plate, and the first anti-return piece is used to opening or closing first Room Passage, the second anti-return piece are used for the passage for opening or closing the second Room.
2. cabinet as claimed in claim 1, it is characterised in that the cabinet includes bottom wall, roof and is connected to the bottom wall A pair of sidewalls between the roof, the front-end and back-end of the cabinet are opening-like, and the opening of the front end is used for will Controller installs first Room and the second Room, and the opening of the rear end is used to interface board being attached to second collecting Area, the dividing plate are connected between the bottom wall and the roof, and the dividing plate prevents the opening of the front end and described first Space between backflow piece isolates with the space between the front opening and the second anti-return piece.
3. cabinet as claimed in claim 2, it is characterised in that support is additionally provided with the cabinet, the support is connected to institute State between a pair of sidewalls and the cabinet is separated into first accommodating area and second accommodating area, the ventilating opening is close The support, the support are used to install backboard, and space is provided between the support and the roof, so that described first houses Divulged information between area and second accommodating area.
4. cabinet as claimed in claim 3, it is characterised in that the ventilating opening is arranged on the dividing plate, or described logical Air port is arranged between the dividing plate and the support.
5. cabinet as claimed in claim 2, it is characterised in that the first anti-return piece is connected to by a pair of axis of rotation Between the dividing plate and the pair of side wall, the pair of rotating shaft is located at the side of the close roof of the first anti-return piece The both sides on side, when the first anti-return piece rotates relative to the dividing plate and opens the passage of first Room, described first Anti-return piece fits in the roof.
6. a kind of storage device, including the first controller, second controller, first interface plate, second interface plate and cabinet, it is special Sign is that the cabinet includes the first accommodating area and the second accommodating area being arranged side by side;Dividing plate is additionally provided with the cabinet, it is described First accommodating area is separated into the first Room and second Room by dividing plate, and first Room is received with the second Room with described second Hold area to communicate, ventilating opening is provided between first Room and the second Room, the ventilating opening is close to second accommodating area;
The cabinet also includes the first anti-return piece and the second anti-return piece, and the first anti-return piece is located at first Room, The second anti-return piece is located at the second Room, and the ventilating opening is located at the first anti-return piece and second accommodating area Between, and the ventilating opening is between the second anti-return piece and second accommodating area, the first anti-return piece with The second anti-return piece can rotate relative to the dividing plate, to open or close the logical of first Room and the second Room Road;
First controller and the second controller are contained in first Room and the second Room respectively, and described first connects Oralia and the second interface plate are contained in second accommodating area, the first interface plate and first controller and described Second controller interconnects, and the second interface plate also interconnects with first controller and the second controller, and described first The controller side wall adjacent with the dividing plate is provided with opening, and the second controller side wall adjacent with the dividing plate is also provided with and opened Mouthful, the opening is relative with the ventilating opening.
7. storage device as claimed in claim 6, it is characterised in that the cabinet includes bottom wall, roof and is connected to described A pair of sidewalls between bottom wall and the roof, the front-end and back-end of the cabinet are opening-like, first controller and The second controller is attached in first Room and the second Room from the opening of the front end respectively, the first interface Plate and the second interface plate are attached to second accommodating area from the opening of the rear end, and the dividing plate is connected to the bottom wall Between the roof, the dividing plate extends to the remote described of the first, second anti-return piece from the opening of the front end The side of the opening of front end.
8. storage device as claimed in claim 7, it is characterised in that support, the support connection are additionally provided with the cabinet First accommodating area and second accommodating area, the ventilating opening are separated between the pair of side wall and by the cabinet Close to the support, the storage device also includes backboard, and the backboard is attached to the support, the backboard and the roof Between be provided with space, so as to be divulged information between first accommodating area and second accommodating area.
9. storage device as claimed in claim 8, it is characterised in that the ventilating opening is arranged on the dividing plate, Huo Zhesuo Ventilating opening is stated to be arranged between the dividing plate and the support.
10. storage device as claimed in claim 7, it is characterised in that the first anti-return piece passes through a pair of axis of rotation It is connected between the dividing plate and the pair of side wall, the pair of rotating shaft is located at the close top of the first anti-return piece The both sides of the side of wall, when the first anti-return piece rotates relative to the dividing plate and opens the passage of first Room, institute State the first anti-return piece and fit in the roof.
CN201410705824.9A 2014-11-27 2014-11-27 Cabinet and storage device Active CN104460885B (en)

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CN104460885B true CN104460885B (en) 2018-01-23

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Publication number Priority date Publication date Assignee Title
US9968009B2 (en) * 2016-05-03 2018-05-08 Quanta Computer Inc. System with fresh air flow toward downstream components for cooling
CN107832856A (en) * 2017-10-27 2018-03-23 国网江苏省电力公司南通供电公司 Operation management APP method
CN107818371A (en) * 2017-10-27 2018-03-20 国网江苏省电力公司南通供电公司 Operation management APP method
CN109152295B (en) * 2018-09-28 2021-02-09 新华三技术有限公司 Plug-in module and frame type equipment

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CN102339093A (en) * 2010-07-21 2012-02-01 英业达股份有限公司 Server
CN102637064A (en) * 2012-02-14 2012-08-15 华为技术有限公司 Small-sized machine and small-sized machine system

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CN201820172U (en) * 2010-09-30 2011-05-04 英业达股份有限公司 Rack server
CN102637064A (en) * 2012-02-14 2012-08-15 华为技术有限公司 Small-sized machine and small-sized machine system

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