CN102714931B - Device case and communication equipment - Google Patents
Device case and communication equipment Download PDFInfo
- Publication number
- CN102714931B CN102714931B CN201280000365.3A CN201280000365A CN102714931B CN 102714931 B CN102714931 B CN 102714931B CN 201280000365 A CN201280000365 A CN 201280000365A CN 102714931 B CN102714931 B CN 102714931B
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- Prior art keywords
- fan
- cabinet
- slot
- rear class
- wind
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- 238000004891 communication Methods 0.000 title claims abstract description 62
- 239000012634 fragment Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 abstract 2
- 238000009423 ventilation Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/2019—Fan safe systems, e.g. mechanical devices for non stop cooling
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Provided is a device case and communication equipment, the device case comprising a fan, and communication components. Back-draft prevention fins are arranged between the fan and the communication components, and a constant-pressure cavity is formed between the back-draft prevention fins and the communication components. By means of the constant-pressure cavity formed between the fan and the communication components, the present invention allows supplementary air to flow to a ventilation passage providing protection of the fan, thus avoiding the risks associated with heat dispersal.
Description
Technical field
The present invention relates to the communication technology, particularly relate to a kind of cabinet and communication equipment.
Background technology
Generally comprise multiple cabinet in communication equipment, be provided with the various communication component such as internal memory, hard disk in each cabinet, these communication components can produce heat in the course of the work; In order to ensure the normal operation of above-mentioned parts, being necessary for these parts and dispelling the heat in time, so be also provided with fan frame in the chassis.Cabinet be divide into two parts space by fan frame and communication component, and a part of space of cabinet is for holding communication component, and another part space arranges fan frame near this communication component.
Generally be provided with in fan frame and organize fan more, fan passes through main board power supply by the power module in cabinet.Can air-flow be produced during fan work, air-flow by directly enter with fan near communication component region in, and the Clearance Flow between each communication component, is formed air channel, and is taken away by the heat that communication component produces by the air-flow in air channel.Because fan is near communication component, and air-flow directly enters the communication component region corresponding with position of fan, dispels the heat so each group fan is mainly used for the part communication component corresponding to position.When fan to produce more for a long time service time damage time, need to be serviced; Fan maintenance mode conventional at present, because fan frame position is in the chassis fixed, so must give communication equipment power-off, and is hauled out whole for cabinet from communication equipment, open chassis cover, carry out the replacing of fan.
In above-mentioned fan maintenance mode, must communication equipment power-off be given and cabinet is hauled out from communication equipment and opened chassis cover and just can carry out fan replacing, attended operation is very complicated, and the time that fan must be made to safeguard is comparatively of a specified duration, affects the normal operation of equipment; But, after removing certain group fan, air-flow on the air channel of position corresponding to this group fan will inevitably obviously reduce, affect this air channel the heat radiation of communication component of process, and longer fan preventive maintenance time will inevitably make the communication system in cabinet easily occur risk of dispelling the heat.
Summary of the invention
One aspect of the present invention is to provide a kind of cabinet, to reduce communication system heat radiation risk.
Another aspect of the present invention is to provide a kind of communication equipment, to reduce communication system heat radiation risk.
Cabinet provided by the invention, comprises fan and communication component; Be provided with anti-return sheet between described fan and communication component, formed between described anti-return sheet and described communication component and all press chamber.
Communication equipment provided by the invention, comprising: cabinet of the present invention.
The technique effect of cabinet of the present invention and communication equipment is: by arranging anti-return sheet between fan and communication component, make to be formed between anti-return sheet and described communication component all to press chamber, thus on the air channel that air-flow can be made to add to safeguard corresponding to fan, avoid system to produce heat radiation risk.
Accompanying drawing explanation
Fig. 1 is the fan frame structural representation in cabinet one embodiment of the present invention;
Fig. 2 is the application structure schematic diagram of the fan frame in cabinet one embodiment of the present invention;
Fig. 3 is the operation principle schematic diagram of cabinet one embodiment of the present invention;
Fig. 4 is the fan frame structural representation in another embodiment of cabinet of the present invention;
Fig. 5 is the structural representation of a cabinet of the present invention embodiment again;
Fig. 6 is the structural representation of the fan frame of cabinet of the present invention again in an embodiment.
Embodiment
Embodiments provide a kind of cabinet, in this cabinet, comprise fan and communication component; Between fan and communication component, be provided with anti-return sheet, formed between this anti-return sheet and described communication component and all press chamber.All press chamber by not safeguarding that the air dispersion of fan is on air channel corresponding to maintained fan, ensures the timely heat radiation of the communication component that this air channel is corresponding, heat radiation risk can be reduced by this.
Embodiment one
The present embodiment is the cabinet of the fan frame with top plug-type is example, and the structure of cabinet is described; That is, fan is arranged in fan frame; The cabinet of other types also has structure as described below, such as, have the cabinet etc. of front plug-type fan frame, repeat no more.
In order to structure and the principle of clearer statement cabinet, first the structure of the fan frame in cabinet is described below, and describes the operation principle of the present embodiment cabinet in conjunction with the structure of this fan frame:
Fig. 1 is the fan frame structural representation in cabinet one embodiment of the present invention, and as shown in Figure 1, this fan frame comprises blower tray 11, is provided with multiple fan slot 12 in blower tray 11, and this fan slot 12 is for holding fan 13.Concrete, fan slot 12 is equivalent to a holding tank, and fan 13 can insert in this fan slot 12, or pulls out from fan slot 12 and change.Three groups of fans are shown, such as one of them fan group A in Fig. 1, in this fan group A, have included two fan slots 12; Be separated by by dividing plate 14 between each fan group, this dividing plate 14 is simultaneously as the sidewall of fan slot 12.
In the present embodiment, anti-return sheet 15 can be fixed on the blower tray 11 of fan frame, and blower tray 11 is also fixed with Fan Monitor and Control Board 16.Wherein, anti-return sheet 15 is between the communication component for being arranged in fan and cabinet, so it is arranged on the rear portion of blower tray 11.See Fig. 2, Fig. 2 is the application structure schematic diagram of the fan frame in cabinet one embodiment of the present invention, when this fan frame is loaded in cabinet, between the communication component 17 of anti-return sheet 15 just in fan 13 and cabinet, fan 13 runs the air-flow 18 formed and enters through after this anti-return sheet 15 in the air channel in communication component region.Optionally, be also provided with cabinet mainboard in this cabinet, Fan Monitor and Control Board 16 is for connecting length adjustable cable 19, and this adjustable in length cable 19 is connected to cabinet mainboard, and the length of this adjustable in length cable 19 can be stretched.
The operation principle of the cabinet of the present embodiment is described below in conjunction with Fig. 3, and Fig. 3 is the operation principle schematic diagram of cabinet one embodiment of the present invention:
When certain the group fan such as fan group A in fan frame damage need to change time, can haul out whole for fan frame 20 from cabinet 21, now, between the communication component in fan frame 20 and cabinet 21, form a cavity 22; Because the adjustable in length cable 19 be connected between cabinet mainboard and Fan Monitor and Control Board 16 can stretch, so in the process of hauling out fan frame 20, adjustable in length cable 19 will extend, and support the hauling-out of fan frame, keep safeguarding that in fan process, mainboard is to the normal power supply of fan.
Further, owing to being provided with anti-return sheet 15 between fan 13 and communication component, anti-return sheet 15 automatically can be closed under the effect of cabinet inside air pressure, plays the effect of anti-return; Fan group B then in fan frame and fan group C is in operation the air-flow 18 formed, and be can not flow out from the logical dummy section formed after removing fan group A, air-flow 18 can be enclosed in cabinet by anti-return sheet 15.In addition, owing to employing adjustable in length cable 19, this adjustable in length cable 19 supports the hauling-out of fan frame, so can open chassis cover no longer as prior art and cause fan frame the electricity went off, the present embodiment can not open chassis cover, directly by charged for fan frame hauling-out cabinet, that is, the top of cavity 22 is also closed, is closed by chassis cover, so air-flow 18 also can not flow out cabinet from top.To sum up, in fact cavity 22 forms a closed cavity, and air-flow can not flow out, and this cavity 22 is for all to press chamber.
On this basis, the air-flow that fan group B and fan group C produces just can be uniformly distributed in this cavity 22, air-flow will add on the air channel corresponding to fan group A, thus makes communication component that fan group A is corresponding also can proper heat reduction, thus avoids system to produce heat radiation risk.
The cabinet of the present embodiment, by arranging anti-return sheet between fan and communication component, make to be formed between anti-return sheet and described communication component all to press chamber, thus on the air channel that air-flow can be made to add to safeguard corresponding to fan, avoid system to produce heat radiation risk.
Embodiment two
Fig. 4 is the fan frame structural representation in another embodiment of cabinet of the present invention, and the present embodiment is described for the structure of top plug-type to fan frame; And the structure of the fan frame in the cabinet in embodiment one has been done further improve, wherein, the place that the present embodiment pair and embodiment one distinguish is described in detail, and identical structure only makes a brief description, can see described in embodiment one.
As shown in Figure 4, fan 13 in the fan frame of the present embodiment vertically can be extracted from fan slot 12, and, this fan frame comprises three groups of fans, such as fan group A, often organize fan comprise prime fan slot 12a and rear class fan slot 12b, prime fan slot 12a compared with rear class fan slot 12b further from the communication component in cabinet.
Optionally, the anti-return sheet 15 of the present embodiment can be arranged near fan 13, the volume of the cavity formed between fan frame and communication component can be made so larger, and then air-flow is distributed more uniformly in cavity, add to preferably and safeguard to get in the air channel corresponding to fan, radiating effect is better.
Optionally, for the structure with prime and rear class fan slot in the present embodiment, the shell fragment 23 that keeps out the wind can be set on the sidewall of rear class fan slot 12b.Wherein, described sidewall can be dividing plate 14 as shown in Figure 4, and the shell fragment 23 that keeps out the wind can be fixed on described sidewall by elasticity gyroaxis.The operating characteristic of this elasticity gyroaxis is, when fan 13 is placed in fan slot 12, elasticity gyroaxis rotates under the pressure effect of fan 13, and the shell fragment 23 that makes to keep out the wind is close to sidewall, is suppressed and be contained in fan slot 12 by fan 13; And when fan 13 is extracted from fan slot 12, elasticity gyroaxis is due to the no longer automatic rotation by the compacting of fan 13, the shell fragment 23 that makes to keep out the wind is upturned, block the top of the fan slot at fan 13 place, can prevent air-flow from flowing out from the top of the fan slot vacated like this, improve the seal of above-mentioned cavity.
Such as, as shown in Figure 4, the quantity of the shell fragment 23 that keeps out the wind of the present embodiment can be two, and the shell fragment 23 that keeps out the wind described in two is separately positioned on two relative sidewalls of rear class fan slot.When only safeguarding rear class fan, fan is extracted when safeguarding from rear class fan slot, these two shell fragments 23 that keep out the wind are by rotation 90 degree, the top of fan slot is blocked, ensure that the air-flow of the fan of prime fan slot can not flow out from the top of rear class fan slot, and guarantee that cavity remains one and all presses chamber, air-flow can add in the air channel corresponding to maintained fan by consistent, evades the heat radiation risk brought when safeguarding fan.
Optionally, the end face of the blower tray of the present embodiment and bottom surface are respectively arranged with sealing strip 24, and sealing bar 24 is for sealing gap between fan frame and cabinet; This gap refers to the gap between the end face of fan frame and cabinet end face, and the gap between the bottom surface of fan frame and cabinet bottom surface, this gap is generally extracted out for the ease of fan frame and establishes from cabinet.Intercepting above-mentioned gap by arranging sealing strip, can prevent air-flow from leaking from gap location, improve the sealing of cavity further, air-flow can be more even, and the effect of supplementing the corresponding air channel of maintained fan can be better.
Such as, above-mentioned sealing strip 24 can be rubber elastomeric material.
Optionally, angle of inclination and the installation site of the anti-return sheet 15 in the present embodiment can adjust according to actual conditions.Such as, anti-return sheet 15 is preferably arranged on the position near fan, but if according to the actual requirement of machine tank arrangement structure, the back of fan needs to arrange some other parts, then also anti-return sheet 15 can be arranged and fan has certain interval, and described parts are arranged on interval; Now, the volume of the cavity between fan and communication component can reduce, and likely can reduce the supplementary result of air-flow a little, but also can play the effect of heat radiation.
In addition, by the angle of inclination of adjustment anti-return sheet 15, fan group can be adjusted and produce the speed of air-flow and the speed of anti-return sheet closedown.Such as, if the angle of inclination of anti-return sheet 15 is arranged less, then the speed that the air-flow that fan group produces enters cavity can compare mitigation, and the speed that anti-return sheet is closed can be very fast; If the angle of inclination of anti-return sheet 15 is arranged comparatively large, then the air-flow that fan group produces enters the speed of cavity can than comparatively fast, and the speed that anti-return sheet is closed can be slow a little.
In addition, fan frame in the present embodiment can also do following application in actual use: when some is special, as device temperature alarm needs localized reason etc., fan frame can be pulled out, make to be formed between all the other equipment in fan frame and cabinet larger all pressures chamber, the air-flow in each air channel can be made more even, radiating effect is better, the PQ(pressure-flow of fan can be improved) characteristic, improves systematic air flow, reduces the heat radiation risk of device.
The cabinet of the present embodiment, by arranging anti-return sheet between fan and communication component, make to be formed between anti-return sheet and described communication component all to press chamber, thus on the air channel that air-flow can be made to add to safeguard corresponding to fan, avoid system to produce heat radiation risk.
Embodiment three
Fig. 5 is the structural representation of a cabinet of the present invention embodiment again, Fig. 6 is the structural representation of the fan frame of cabinet of the present invention again in an embodiment, shown in the present embodiment is the fan frame of front plug-type, the direction of the fan plug in the type fan frame is different from embodiment two, plugs from front.
As shown in Figure 5, fan frame 20 can overallly from cabinet 21 be hauled out, then is extracted from fan frame 20 by fan 13 and change.Can in conjunction with shown in Figure 3, cabinet 21 is also provided with cabinet mainboard, and cabinet mainboard is connected by adjustable in length cable 19 with the Fan Monitor and Control Board in fan frame; When fan frame 20 is hauled out from cabinet 21, adjustable in length cable 19 can stretch.
Optionally, can arrange chute 28 in cabinet 21, described adjustable in length cable 19 is fixed on this chute.Concrete, chute can be arranged on fan below or side 29, it act as regular length adjustable cable 19, and according to the Plug Action of fan frame, auto zoom cable, does not hinder the Plug Action of fan frame, makes the placement of adjustable in length cable save space and easy to operate; Such as, this chute can be the variable diamond structure of shape, by the changeability adjustment length of cable of diamond structure.
Optionally, the conveniently plug of fan frame, can also arrange guide tracked traction structure.Such as, 25 can be provided with sliver 26 outside the side plate of the blower tray of fan frame, with outside the side plate of blower tray, 25 relative madial walls arrange guide rail 27 at cabinet, sliver 26 matches with guide rail 27.
As shown in Figure 6, the structure difference in this fan frame and embodiment two is, the rear class fan slot of the fan frame of the present embodiment no longer arranges the shell fragment that keeps out the wind; Because the fan frame of this structure, the fan of prime fan slot and the fan of rear class fan slot overallly can only extract fan frame out, and the position that this group fan is corresponding is logical empty, and does not have fan, just there is no need to arrange the shell fragment that keeps out the wind again.Other structures are identical with the structure of embodiment two, repeat no more.
The cabinet of the present embodiment, by arranging anti-return sheet between fan and communication component, make to be formed between anti-return sheet and described communication component all to press chamber, thus on the air channel that air-flow can be made to add to safeguard corresponding to fan, avoid system to produce heat radiation risk; Further, after adopting the structure of the present embodiment, when safeguarding fan, chassis cover need not be opened again, directly fan frame be extracted out, make the maintenance of fan simple and convenient, also need not give cabinet power-off again, fan frame power-off can not be caused, achieve the hot plug that fan is safeguarded.
The structure of various embodiments of the present invention can be suitable for mutually, such as, the alternate configurations of the cabinet in embodiment three also goes for embodiment one or embodiment two, and it is third-class that the alternate configurations (such as keep out the wind shell fragment, sealing strip etc.) of the fan frame in embodiment two goes for embodiment equally.
Embodiment four
Present invention also offers a kind of communication equipment, this equipment comprises the cabinet described in any embodiment of the present invention, such as, can comprise multiple cabinet in this equipment.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, foregoing routine can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a cabinet, is characterized in that, comprises fan and communication component; Anti-return sheet is provided with between described fan and communication component, described fan is arranged in fan frame, described anti-return sheet is fixed on the blower tray of described fan frame, described fan frame can be loaded into described cabinet or haul out from described cabinet, described fan frame is formed between described anti-return sheet and described communication component and all presses chamber after being hauled out from described cabinet;
Be provided with multiple fan slot in described blower tray, described fan is placed in described fan slot;
Described fan slot comprises prime fan slot and rear class fan slot, described prime fan slot comparatively rear class fan slot away from communication component;
The sidewall of described rear class fan slot is provided with the shell fragment that keeps out the wind, described in the shell fragment that keeps out the wind be fixed on described sidewall by elasticity gyroaxis;
Wherein, described in the shell fragment that keeps out the wind be fixed on described sidewall by elasticity gyroaxis, comprising:
When described fan is placed in described rear class fan slot, described elasticity gyroaxis rotates under the pressure of described fan, and the shell fragment that keeps out the wind described in making is close to described sidewall;
When described fan is extracted from described rear class fan slot, described elasticity gyroaxis is due to the no longer automatic rotation by the compacting of described fan, and the shell fragment that keeps out the wind described in making is upturned, and blocks the top of the described rear class fan slot at described fan place.
2. cabinet according to claim 1, is characterized in that, described anti-return sheet is arranged near described fan.
3. cabinet according to claim 1, is characterized in that, the quantity of the shell fragment that keeps out the wind described in each rear class fan slot is two, and the shell fragment that keeps out the wind described in two is separately positioned on two relative sidewalls of described rear class fan slot.
4. cabinet according to claim 1, is characterized in that, described fan slot is fan top plug-type or fan front plug-type.
5. cabinet according to claim 1, is characterized in that, the end face of described blower tray and bottom surface are respectively arranged with the sealing strip for sealing gap between fan frame and cabinet.
6. cabinet according to claim 5, is characterized in that, described sealing strip is rubber.
7. cabinet according to claim 6, is characterized in that, is also provided with cabinet mainboard in described cabinet, and described cabinet mainboard is connected by adjustable in length cable with the Fan Monitor and Control Board in described fan frame.
8. cabinet according to claim 7, is characterized in that, also comprises chute in described cabinet, and described adjustable in length cable is fixed on described chute.
9. cabinet according to claim 8, it is characterized in that, the side plate arranged outside of the blower tray of described fan frame has sliver, and the madial wall relative with outside the side plate of described blower tray of described cabinet is provided with guide rail, and described sliver matches with described guide rail.
10. a communication equipment, is characterized in that, comprises the arbitrary described cabinet of claim 1-9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/071164 WO2012092904A2 (en) | 2012-02-15 | 2012-02-15 | Device case and communication equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102714931A CN102714931A (en) | 2012-10-03 |
| CN102714931B true CN102714931B (en) | 2015-04-08 |
Family
ID=46457763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280000365.3A Active CN102714931B (en) | 2012-02-15 | 2012-02-15 | Device case and communication equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102714931B (en) |
| WO (1) | WO2012092904A2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325446B (en) * | 2016-11-01 | 2019-02-15 | 广东浪潮大数据研究有限公司 | A kind of cabinet and radiator |
| CN107256073A (en) * | 2017-06-12 | 2017-10-17 | 郑州云海信息技术有限公司 | Fixing device, server component, server and the method for changing blower module |
| JP6613284B2 (en) * | 2017-10-31 | 2019-11-27 | ファナック株式会社 | Fan unit |
| CN109270495A (en) * | 2018-11-06 | 2019-01-25 | 上海航天电子通讯设备研究所 | A kind of radar inner-outer circulation forced air cooling radiator structure and radar |
| TWI743732B (en) * | 2020-04-08 | 2021-10-21 | 緯創資通股份有限公司 | Fan module and electronic device |
| CN114721476B (en) * | 2022-03-28 | 2024-04-09 | 西安易朴通讯技术有限公司 | Heat abstractor and server |
| CN117998807A (en) * | 2022-10-31 | 2024-05-07 | 锐捷网络股份有限公司 | Heat dissipation system and electronic equipment using same |
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| CN101217858A (en) * | 2008-01-09 | 2008-07-09 | 华为技术有限公司 | Heat radiation method and system for communication device |
| CN201422220Y (en) * | 2008-03-11 | 2010-03-10 | 诺基亚西门子通信公司 | Case for flat component |
| CN102159057A (en) * | 2010-01-20 | 2011-08-17 | 富士通株式会社 | Backflow prevention device, electronic apparatus, and method for producing backflow prevention device |
| EP2391198A2 (en) * | 2010-05-28 | 2011-11-30 | Rockwell Automation Technologies, Inc. | Air cooling of medium voltage drive components |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2630544Y (en) * | 2003-05-13 | 2004-08-04 | 华为技术有限公司 | Fan frame |
| CN102279633B (en) * | 2011-08-26 | 2013-04-24 | 华为技术有限公司 | Server |
-
2012
- 2012-02-15 CN CN201280000365.3A patent/CN102714931B/en active Active
- 2012-02-15 WO PCT/CN2012/071164 patent/WO2012092904A2/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217858A (en) * | 2008-01-09 | 2008-07-09 | 华为技术有限公司 | Heat radiation method and system for communication device |
| CN201422220Y (en) * | 2008-03-11 | 2010-03-10 | 诺基亚西门子通信公司 | Case for flat component |
| CN102159057A (en) * | 2010-01-20 | 2011-08-17 | 富士通株式会社 | Backflow prevention device, electronic apparatus, and method for producing backflow prevention device |
| EP2391198A2 (en) * | 2010-05-28 | 2011-11-30 | Rockwell Automation Technologies, Inc. | Air cooling of medium voltage drive components |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012092904A2 (en) | 2012-07-12 |
| CN102714931A (en) | 2012-10-03 |
| WO2012092904A3 (en) | 2013-01-24 |
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Effective date of registration: 20220118 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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