CN1652675A - Heat radiating system - Google Patents

Heat radiating system Download PDF

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Publication number
CN1652675A
CN1652675A CN 200410004115 CN200410004115A CN1652675A CN 1652675 A CN1652675 A CN 1652675A CN 200410004115 CN200410004115 CN 200410004115 CN 200410004115 A CN200410004115 A CN 200410004115A CN 1652675 A CN1652675 A CN 1652675A
Authority
CN
China
Prior art keywords
air channel
interpolation frame
air
auxiliary
rack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 200410004115
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Chinese (zh)
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CN100450334C (en
Inventor
洪宇平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CNB2004100041154A priority Critical patent/CN100450334C/en
Publication of CN1652675A publication Critical patent/CN1652675A/en
Application granted granted Critical
Publication of CN100450334C publication Critical patent/CN100450334C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores

Abstract

The cooling system includes following parts: cabinet including front door and back door; multiple insertion frames fixed on the cabinet, radiant single board or other functional module are inserted into insertion frames vertically; back boards of insertion frames and partition boards of heat exchange module of heat tubes partition the cabinet into upper and lower flues in front and back as frame flue and auxiliary flue; at least one fan frame setup at top part of the insertion frames; at least a group of auxiliary cooling fan setup in the said auxiliary flue including at least one air inlet and a air outlet. The cooling system also includes heat exchange modules of heat tube are setup inside frame flue and auxiliary flue.

Description

A kind of cooling system
Technical field
The present invention relates to the heat dissipation technology of the electronics or the communications field, specifically refer to a kind of cooling system.
Background technology
Along with the power of communication equipment constantly increases, its heat that is produced in running also constantly increases, and the ambient temperature that the increase of heat will cause electronic component or veneer to move rises, when temperature surpasses the temperature that electronic component or veneer allowed, will cause electronic component or veneer normally not to move, even damage electronic component or veneer, so it is just very necessary that communication equipment is dispelled the heat.
In the prior art, to the heat radiation of communication equipment, usually the technology of Cai Yonging is the heat dissipation wind channel technology, when concrete the application, following several concrete scheme is arranged:
First kind: interpolation frame series connection air channel, please refer to Fig. 1, in this scheme, the top of rack is equipped with aerofoil fan, the top at rack back door offers air outlet, the bottom of Door of communication apparatus cabinet offers air inlet, and is provided with a wind deflector in the rack bottom, during work, aerofoil fan is opened, hot-air in the rack is discharged by air outlet, and simultaneously extraneous cold air enters behind the rack along wind deflector successively by needing the veneer interpolation frame of heat radiation from air inlet, finishes the heat radiation to communication equipment.In this scheme, can replace aerofoil fan that the hot-air in the rack is discharged to reach the heat radiation purpose with centrifugal fan, specifically please refer to Fig. 2.
For above-mentioned first kind of scheme, there is following shortcoming:
1, owing to is the series connection air channel structure, so when air the bottom from rack bottom interpolation frame flow into take away the heat of veneer after, the temperature of the air that is flowed out can increase thereupon, and described hot-air can continue to flow into the interpolation frame heat radiation of top, and then cause the temperature difference of veneer and air in the interpolation frame of top to reduce the heat dispersion variation.
2, when the caloric value of each veneer interpolation frame is all bigger, as reach more than 300~400W, the air themperature that then enters the top interpolation frame may surpass allowable temperature, thereby causes communication equipment normally not move, even causes veneer to damage.
3,, need to increase air mass flow, thereby need to increase the power or the quantity of fan in order to reduce the temperature of air in the air channel.After air mass flow increased, the amount of dust that enters rack increased, and produced dustproof problem; After the power of fan and quantity increase, cause the noise of equipment to increase.
Second kind: the interpolation frame independent ventiduct, please refer to Fig. 3, in this scheme, each veneer interpolation frame top all is equipped with aerofoil fan, separates by wind deflector between two interpolation frames up and down, makes that the air channel of each interpolation frame is independent.The forward and backward door of rack all needs the large tracts of land setting into and out of the air port.During work, aerofoil fan is opened, the hot-air in the rack is discharged by air outlet, extraneous simultaneously cold air is finished the heat radiation to communication equipment from flowing into the interpolation frame of each independent ventilation after air inlet enters rack.In this scheme, can replace aerofoil fan that the heat discharge that each veneer interpolation frame in the rack is produced is reached the heat radiation purpose with centrifugal fan, specifically with reference to figure 4.
There is following shortcoming in above-mentioned second kind of scheme:
1,, and then taken the space of telecommunications equipment cabinet greatly owing to fan all will be installed and turnover, wind groove are set on each interpolation frame.
2, owing on each interpolation frame, all fan being installed, so increased the cost and the noise of heat radiation.
3, this kind mode need be provided with large-area air inlet and air outlet at the Qianmen and the back door of rack, and then has increased the dustproof and noise difficulty of rack.
Summary of the invention
The invention provides a kind of cooling system, not only radiating effect had been well but also lower-cost problem to solve in the prior art two kinds of schemes.
For achieving the above object, the invention provides following technical scheme:
A kind of cooling system comprises: rack, described rack include the Qianmen, reach the back door; A plurality of interpolation frames, described interpolation frame is fixed in the described rack, perpendicular veneer or other functional module of inserting heating in the interpolation frame, described cooling system also comprises: the backboard of interpolation frame and the dividing plate of radiating module, the backboard of described interpolation frame and the dividing plate of radiating module are separated into the air channel of former and later two upper and lower ventilations to rack, are called interpolation frame air channel and auxiliary air channel; At least one fan frame; Described fan frame is arranged at the top of described interpolation frame; At least one group of auxiliary cooling fan, described auxiliary cooling fan is arranged in the described auxiliary air channel; At least one air inlet; At least one air outlet and heat pipe heat exchanging module, described heat pipe heat exchanging module are positioned in described interpolation frame air channel and the auxiliary air channel.
Interpolation frame air channel and auxiliary air channel are to form to the top along the rack bottom, and the air in interpolation frame air channel and the auxiliary air channel does not mix in other zone except that rack bottom and top.
Described air inlet can be arranged at Door of communication apparatus cabinet, and at this moment, air flows into interpolation frame air channel and auxiliary air channel respectively by the air intake duct of rack bottom, and mix at the air inlet place with air in the auxiliary air channel in the interpolation frame air channel; Described air inlet also can be arranged at Door of communication apparatus cabinet and back door bottom, and at this moment, the dividing plate at air intake duct rear portion separates interpolation frame air channel and auxiliary air channel, and air does not mix; Header was or/and enclosure top after described air outlet was arranged at rack.
Described heat pipe heat exchanging module comprises: a plurality of fin, and some heat pipes that are interspersed in a plurality of fin, one with described fin dividing plate divided into two parts.
Described fin first is placed in the auxiliary air channel, and its width and auxiliary air channel are quite or less than auxiliary air channel.
The second portion of described fin is placed in the interpolation frame air channel, and its width and interpolation frame air channel are quite or less than the interpolation frame air channel.
First's fin of described fin can equate with the width of second portion fin or be unequal.
Described fin is the common plain fin or the corrugated fin of close-coupled.
Described dividing plate is identical with the interpolation frame width, aligns with the backboard of interpolation frame, makes that the air in interpolation frame air channel and the auxiliary air channel does not mix.
By above-mentioned scheme, the present invention has following advantage:
1, because the air channel design of uniqueness of the present invention can effectively reduce the air themperature that interpolation frame is imported and exported, solves the heat dissipation problem of high-power interpolation frame, improved the reliability of equipment.
2, with respect to interpolation frame polyphone air channel scheme, the present invention can reduce the ventilation quantity in the interpolation frame air channel, reduces number of fans in the interpolation frame, helps dustproof and noise reduction, solves the problem of high-power interpolation frame polyphone heat radiation.
3, with respect to interpolation frame independent ventiduct scheme, the present invention does not need the fan frame to each interpolation frame to be set, only need increase a small amount of fan is set in auxiliary air channel, so significantly reduced number of fans in the rack, helps reducing the rack noise.
4, with respect to interpolation frame independent ventiduct scheme, the present invention can reduce the quantity of fan frame and the volume of each interpolation frame top and bottom outlet and inlet conduit, help increasing the free space of other function device of rack, improve the integrated level and the compactness of equipment or can reduce the height of rack;
5, with respect to interpolation frame independent ventiduct scheme, the present invention can reduce the total ventilation quantity of rack, helps the dustproof of equipment;
6, with respect to interpolation frame independent ventiduct scheme, the present invention can reduce the area into and out of the air port of the forward and backward door of rack, helps realizing the noise reduction of rack level and preventing dust.
Description of drawings
Fig. 1 is the structure chart of first kind of scheme when adopting aerofoil fan in the prior art;
Fig. 2 is the structure chart of first kind of scheme when adopting centrifugal fan in the prior art;
Fig. 3 is the structure chart of second kind of scheme when adopting aerofoil fan in the prior art;
Fig. 4 is the structure chart of second kind of scheme when adopting centrifugal fan in the prior art;
Fig. 5 is the cooling system first example structure schematic diagram of the present invention;
Fig. 6 is the cooling system second example structure schematic diagram of the present invention;
Fig. 7 is radiating module structure schematic diagram in the cooling system of the present invention;
Fig. 8 is a cooling system fundamental diagram of the present invention.
Embodiment
Please refer to Fig. 5 for the invention provides the cooling system first example structure schematic diagram, described cooling system comprises: rack, described rack include the Qianmen, reach the back door; Three veneer interpolation frames, described veneer interpolation frame is fixed in the described rack; One air inlet, described air inlet is arranged at the bottom of described Door of communication apparatus cabinet; One air outlet, described air outlet is arranged at the top at described rack back door; Two heat pipe heat exchanging modules, described heat pipe heat exchanging module are arranged at the top by two veneer interpolation frames of rack bottom respectively; A fan frame is set with plurality of fans in the described fan frame, and described fan frame is arranged on the top of the top of rack veneer interpolation frame; Some auxiliary cooling fans, described auxiliary cooling fan is arranged near the described air outlet, its effect is the air flows that drives in the auxiliary air channel, thereby realize the heat exchange of rack rear portion air and interpolation frame import and export place air by the heat pipe heat exchanging module, reduce the temperature of interpolation frame import and export place air, help the heat radiation of the interior veneer of interpolation frame or other functional module.
Please refer to Fig. 6 for the invention provides the cooling system second example structure schematic diagram, described cooling system comprises: rack, described rack include the Qianmen, reach the back door; Three veneer interpolation frames, described veneer interpolation frame is fixed in the described rack; Two air inlets, one of them air inlet is arranged at the bottom of described Door of communication apparatus cabinet, is used for interpolation frame air channel air intake, and another air inlet is provided with the bottom with described rack back door, is used for auxiliary air channel air intake; One air outlet, described air outlet is arranged at the top of described rack; Two heat pipe heat exchanging modules, described heat pipe heat exchanging module are arranged at the top by two veneer interpolation frames of rack bottom respectively; A fan frame is set with plurality of fans in the described fan frame, and described fan frame is arranged on the top of the top of rack veneer interpolation frame; Some auxiliary cooling fans, described auxiliary cooling fan be provided with the heat pipe heat exchanging module be arranged in auxiliary air channel part above or below, its effect is the air flows that drives in the auxiliary air channel, thereby realize the heat exchange of rack rear portion air and interpolation frame import and export place air by the heat pipe heat exchanging module, reduce the temperature of interpolation frame import and export place air, help the heat radiation of the interior veneer of interpolation frame or other functional module.
Please refer to Fig. 7, be heat pipe heat exchanging modular structure schematic diagram in the cooling system of the present invention, as seen in heat pipe heat exchanging module scheme 1, each heat exchange thermal modules comprises: a plurality of fin, some heat pipes that are interspersed in a plurality of fin, one with described fin dividing plate divided into two parts.First is placed in the auxiliary air channel in described two parts, and its width and auxiliary air channel are quite or less than auxiliary air channel, described second portion is placed in the interpolation frame air channel, and its width and interpolation frame air channel are quite or less than the interpolation frame air channel.In radiating module first embodiment, the width of a plurality of fin be one to, and in heat pipe heat exchanging module scheme 2, the fin width that is positioned in the auxiliary air channel wants narrower.In heat pipe heat exchanging module scheme 1 and 2, described fin is for adopting simple straight heat exchange fin or complicated ripple heat exchange fin.
Please refer to Fig. 8, be cooling system fundamental diagram of the present invention, be specially: when work, cool ambient air enters interpolation frame air channel and auxiliary air channel respectively from the air intake duct of rack bottom or the air inlet at rack back door; The cold air that enters the interpolation frame air channel from down and on pass through each interpolation frame successively, veneer in the interpolation frame or other functional module are dispelled the heat, simultaneously after cold air is heated through interpolation frame, the flow through heat pipe heat exchanging module at interpolation frame top, utilize heat exchange module second portion fin and heat pipe with most of heat transferred to the fin of heat pipe heat exchanging module first; First's fin looses heat in the cold air of assisting in the air channel again, and after the Hot air quilt cooling that the bottom interpolation frame flows out, the interpolation frame that flows into the top again dispels the heat.
As seen, cooling system of the present invention has following advantage:
1, because the air channel design of uniqueness of the present invention can effectively reduce the air themperature that interpolation frame is imported and exported, solves the heat dissipation problem of high-power interpolation frame, improved the reliability of equipment.
2, with respect to interpolation frame polyphone air channel scheme, the present invention can reduce the ventilation quantity in the interpolation frame air channel, reduces number of fans in the interpolation frame, helps dustproof and noise reduction, solves the problem of high-power interpolation frame polyphone heat radiation.
3, with respect to interpolation frame independent ventiduct scheme, the present invention does not need the fan frame to each interpolation frame to be set, only need increase a small amount of fan is set in auxiliary air channel, so significantly reduced number of fans in the rack, helps reducing the rack noise.
4, with respect to interpolation frame independent ventiduct scheme, the present invention can reduce the quantity of fan frame and the volume of each interpolation frame top and bottom outlet and inlet conduit, help increasing the free space of other function device of rack, improve the integrated level and the compactness of equipment or can reduce the height of rack;
5, with respect to interpolation frame independent ventiduct scheme, the present invention can reduce the total ventilation quantity of rack, helps the dustproof of equipment;
6, with respect to interpolation frame independent ventiduct scheme, the present invention can reduce the area into and out of the air port of the forward and backward door of rack, helps realizing the noise reduction of rack level and preventing dust.

Claims (9)

1, a kind of cooling system comprises: rack, described rack include the Qianmen, reach the back door; A plurality of interpolation frames, described interpolation frame is fixed in the described rack, perpendicular veneer or other functional module of inserting heating in the interpolation frame, it is characterized in that, described cooling system also comprises: the backboard of interpolation frame and the dividing plate of radiating module, the backboard of described interpolation frame and the dividing plate of radiating module are separated into the air channel of former and later two upper and lower ventilations to rack, are called interpolation frame air channel and auxiliary air channel; At least one fan frame; Described fan frame is arranged at the top of described interpolation frame; At least one group of auxiliary cooling fan, described auxiliary cooling fan is arranged in the described auxiliary air channel; At least one air inlet; At least one air outlet and heat pipe heat exchanging module, described heat pipe heat exchanging module are positioned in described interpolation frame air channel and the auxiliary air channel.
2, cooling system as claimed in claim 1 is characterized in that, interpolation frame air channel and auxiliary air channel are to form to the top along the rack bottom, and the air in interpolation frame air channel and the auxiliary air channel does not mix in other zone except that rack bottom and top.
3, cooling system as claimed in claim 1, it is characterized in that described air inlet can be arranged at Door of communication apparatus cabinet, at this moment, air flows into interpolation frame air channel and auxiliary air channel respectively by the air intake duct of rack bottom, and mix at the air inlet place with air in the auxiliary air channel in the interpolation frame air channel; Described air inlet also can be arranged at Door of communication apparatus cabinet and back door bottom, and at this moment, the dividing plate at air intake duct rear portion separates interpolation frame air channel and auxiliary air channel, and air does not mix; Header was or/and enclosure top after described air outlet was arranged at rack.
4, cooling system as claimed in claim 1 is characterized in that, described heat pipe heat exchanging module comprises: a plurality of fin, and some heat pipes that are interspersed in a plurality of fin, one with described fin dividing plate divided into two parts.
5, cooling system as claimed in claim 4 is characterized in that, described fin first is placed in the auxiliary air channel, and its width and auxiliary air channel are quite or less than auxiliary air channel.
6, cooling system as claimed in claim 4 is characterized in that, the second portion of described fin is placed in the interpolation frame air channel, and its width and interpolation frame air channel are quite or less than the interpolation frame air channel.
As claim 5 or 6 described cooling systems, it is characterized in that 7, first's fin of described fin can equate with the width of second portion fin or be unequal.
8, cooling system as claimed in claim 4 is characterized in that, described fin is the common plain fin or the corrugated fin of close-coupled.
9, cooling system as claimed in claim 4 is characterized in that, described dividing plate is identical with the interpolation frame width, aligns with the backboard of interpolation frame, makes that the air in interpolation frame air channel and the auxiliary air channel does not mix.
CNB2004100041154A 2004-02-07 2004-02-07 Heat radiating system Expired - Fee Related CN100450334C (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN100450334C CN100450334C (en) 2009-01-07

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WO2007095846A1 (en) * 2006-02-24 2007-08-30 Huawei Technologies Co., Ltd. Temperature control device, management device, system and method
WO2008124981A1 (en) * 2007-04-17 2008-10-23 Huawei Technologies Co., Ltd. Method of heat dissipating for plug-in boxes in cabinet and air-guiding apparatus
WO2009076850A1 (en) * 2007-12-03 2009-06-25 Huawei Technologies Co., Ltd. Communication device
WO2009103215A1 (en) * 2008-02-22 2009-08-27 华为技术有限公司 A horizontal insertion frame and a communication machine-cabinet
CN101403522B (en) * 2008-10-29 2010-06-16 深圳市生瑞科技有限公司 High-efficiency heat exchange communication cabinet and its high-efficiency heat exchange method
CN101922878A (en) * 2010-08-11 2010-12-22 上海贝电实业股份有限公司 Modularized heat pipe air heat exchanger
CN102111974A (en) * 2010-12-28 2011-06-29 深圳雅图数字视频技术有限公司 Display device
CN102195451A (en) * 2010-03-16 2011-09-21 株洲南车时代电气股份有限公司 Auxiliary converter cabinet of electric locomotive
CN102270027A (en) * 2011-07-28 2011-12-07 浪潮电子信息产业股份有限公司 Multi-path radiating system for large-power server
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CN101662913B (en) * 2008-08-26 2012-03-21 华为技术有限公司 Insertion box, machine cabinet and machine room
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CN103052306A (en) * 2013-01-18 2013-04-17 赵敏 Novel electric locomotive chopper
CN103079386A (en) * 2012-12-31 2013-05-01 迈普通信技术股份有限公司 Heat dissipation structure of rack-mounted communication equipment
CN103153027A (en) * 2013-02-07 2013-06-12 广州汇安科技有限公司 Efficient heat dissipation cooling device of information technology (IT) equipment
CN103200802A (en) * 2012-01-06 2013-07-10 沈阳新松机器人自动化股份有限公司 Equipment cabinet system
CN104010469A (en) * 2013-02-25 2014-08-27 华为技术有限公司 Terminal equipment
CN105025678A (en) * 2015-07-28 2015-11-04 苏州市龙源电力科技股份有限公司 Turbine dust-removal/heat-dissipation electrical control cabinet
WO2016015513A1 (en) * 2014-07-30 2016-02-04 中兴通讯股份有限公司 Cabinet
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CN106163148A (en) * 2015-04-16 2016-11-23 日东工业株式会社 Electric equipment storage rack
CN106982535A (en) * 2016-01-15 2017-07-25 中兴通讯股份有限公司 The positive and negative exhausting air channel panel of veneer mends wind method and device
CN108668513A (en) * 2018-07-10 2018-10-16 广东宏达通信有限公司 A kind of data center apparatus cooling system
CN105451508B (en) * 2014-09-22 2018-11-13 中国移动通信集团广东有限公司 A kind of fluorine pump internal-circulation type secondary refrigerant loop server cabinet cooling system
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WO2007095846A1 (en) * 2006-02-24 2007-08-30 Huawei Technologies Co., Ltd. Temperature control device, management device, system and method
WO2008124981A1 (en) * 2007-04-17 2008-10-23 Huawei Technologies Co., Ltd. Method of heat dissipating for plug-in boxes in cabinet and air-guiding apparatus
CN101453856B (en) * 2007-12-03 2012-03-21 华为技术有限公司 Communication equipment
WO2009076850A1 (en) * 2007-12-03 2009-06-25 Huawei Technologies Co., Ltd. Communication device
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US8223492B2 (en) 2008-02-22 2012-07-17 Huawei Technologies Co., Ltd. Horizontal subrack and communication cabinet
WO2009103215A1 (en) * 2008-02-22 2009-08-27 华为技术有限公司 A horizontal insertion frame and a communication machine-cabinet
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CN101403522B (en) * 2008-10-29 2010-06-16 深圳市生瑞科技有限公司 High-efficiency heat exchange communication cabinet and its high-efficiency heat exchange method
CN102195451A (en) * 2010-03-16 2011-09-21 株洲南车时代电气股份有限公司 Auxiliary converter cabinet of electric locomotive
CN101922878A (en) * 2010-08-11 2010-12-22 上海贝电实业股份有限公司 Modularized heat pipe air heat exchanger
CN102111974A (en) * 2010-12-28 2011-06-29 深圳雅图数字视频技术有限公司 Display device
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CN102333432A (en) * 2011-07-15 2012-01-25 孙晨啸 Array type machine cabinet
CN102270027A (en) * 2011-07-28 2011-12-07 浪潮电子信息产业股份有限公司 Multi-path radiating system for large-power server
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CN102568619A (en) * 2012-02-08 2012-07-11 上海昱章电气成套设备有限公司 Nuclear power station control rod control device with double-door flat plate structure
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CN103079386A (en) * 2012-12-31 2013-05-01 迈普通信技术股份有限公司 Heat dissipation structure of rack-mounted communication equipment
CN103052306A (en) * 2013-01-18 2013-04-17 赵敏 Novel electric locomotive chopper
CN103153027B (en) * 2013-02-07 2014-07-23 广州汇安科技有限公司 Efficient heat dissipation cooling device of information technology (IT) equipment
CN103153027A (en) * 2013-02-07 2013-06-12 广州汇安科技有限公司 Efficient heat dissipation cooling device of information technology (IT) equipment
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CN105025678A (en) * 2015-07-28 2015-11-04 苏州市龙源电力科技股份有限公司 Turbine dust-removal/heat-dissipation electrical control cabinet
CN106982535A (en) * 2016-01-15 2017-07-25 中兴通讯股份有限公司 The positive and negative exhausting air channel panel of veneer mends wind method and device
CN106982535B (en) * 2016-01-15 2019-11-15 中兴通讯股份有限公司 The positive and negative exhausting air duct panel of veneer mends wind method and device
WO2019210632A1 (en) * 2018-05-04 2019-11-07 烽火通信科技股份有限公司 High-power transmission device cabinet and modular machine room
CN108668513A (en) * 2018-07-10 2018-10-16 广东宏达通信有限公司 A kind of data center apparatus cooling system

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