CN110944496A - Double-cold-source network cabinet heat dissipation equipment without overflow of condensed water - Google Patents
Double-cold-source network cabinet heat dissipation equipment without overflow of condensed water Download PDFInfo
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- CN110944496A CN110944496A CN201911309871.0A CN201911309871A CN110944496A CN 110944496 A CN110944496 A CN 110944496A CN 201911309871 A CN201911309871 A CN 201911309871A CN 110944496 A CN110944496 A CN 110944496A
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- 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
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
-
- 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
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20754—Air circulating in closed loop within cabinets
-
- 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
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/208—Liquid cooling with phase change
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a double-cold-source network cabinet heat dissipation device without condensed water overflow, which is used for forming a relatively closed airflow circulating system with a cabinet, and comprises: the air conditioner comprises a condenser heat dissipation and fresh air enhancement channel, an airflow internal circulation channel, an airflow external circulation channel, an airflow switching valve and a fresh air control valve. The multifunctional cooling equipment has the functions of cooling the condenser and cooling fresh air, greatly simplifies the design of the modular machine room cabinet, reduces the production cost of the whole system and also reduces the energy consumption.
Description
Technical Field
The invention mainly relates to the technical field of data center air conditioners, in particular to a double-cold-source network cabinet heat dissipation device based on an integrated air conditioner, which is applied to a network cabinet.
Background
With the advent of the big data era, various data centers have become important economic infrastructures for various industries, and the importance of the data centers in the working life of people is more and more prominent. At the same time, the scale of data centers is moving towards two polarizations: large data centers are getting larger and larger; and the scales of small and miniature data centers and network node computer rooms are smaller and smaller. In order to meet the environmental and instantaneous requirements of terminal services, small and miniature data centers or network node rooms must be built even under some extreme environments, such as: outdoor, light current well on the floor, business hall at the street, certain office place in office building, etc. At present, in these application scenarios, a scheme adopted more frequently is to configure a closed dustproof cabinet system. However, because the cabinet is closed, when the forced cooling system such as the air conditioner compressor stops operating due to reasons, heat generated by the equipment powered by the UPS in the cabinet cannot be normally discharged out of the cabinet. For such a situation, the currently adopted solutions mainly include: an emergency ventilation door is added on the cabinet, and a cabinet door emergency bouncing device is added on the cabinet; however, the schemes not only increase the production cost of the system, but also cannot fully utilize the ambient temperature cold source to cool the interior of the cabinet when the ambient temperature outside the cabinet is low, so that the energy consumption of the system is increased meaninglessly, and the energy-saving and emission-reducing policies of the country are not met.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the enhanced fresh air heat dissipation equipment of the double-cold-source network cabinet, which is combined with the prior art and starts from practical application, has the enhanced fresh air cooling function and the multifunctional cooling equipment with the condenser cooling function, greatly simplifies the design of the cabinet, reduces the production cost of the whole system and also reduces the energy consumption.
The technical scheme of the invention is as follows:
a double-cold-source network cabinet heat dissipation device without condensate water overflow is used for forming a relatively closed airflow circulating system with a cabinet, and the device comprises:
the forced cooling channel is internally provided with a refrigeration side of a compressor forced refrigeration system, namely an evaporator and a circulating fan; the negative pressure generated by the fan return air inlet of the circulating fan can suck hot air in the cabinet from the return air inlet and send the hot air into the airflow switching channel through the circulating fan air outlet;
an airflow switching channel, the airflow switching channel inlet end being in communication with the forced cooling channel, the airflow switching channel having two switchable airflow outlets: the air flow switching valve is controlled by a control system in the channel, so that the air flow entering the air flow switching channel is discharged between the internal interface and the fresh air heat discharging port;
the fresh air control channel is connected with the airflow switching channel through an internal interface and is provided with an air supply outlet communicated with the interior of the cabinet, a fresh air inlet used for introducing low-temperature airflow outside the system and a fresh air control valve;
the forced heat dissipation channel is provided with a heat dissipation air inlet and a condensation heat dissipation opening for introducing external air flow of the system, and a heat dissipation side of a universal compressor forced refrigeration system: namely a compressor, a condenser, a pressure reducing device and a connecting copper pipe;
and a fresh air heat exhaust opening of the airflow switching channel is connected with the forced heat dissipation channel.
The air flow switching valve is used for switching between the internal interface and the fresh air heat exhaust port, so that one port is closed while the other port is opened, and the fresh air control valve is used for controlling the opening and closing of the fresh air inlet.
The valve component also comprises a traction mechanism, and the traction mechanism simultaneously controls the action of the airflow switching valve and the action of the fresh air control valve.
The air current switches over the valve and is connected with first valve pivot, first valve extension spring and first extension spring support that resets, the air current switches over the valve and realizes the turnover motion through first valve pivot, first valve extension spring both ends that reset are connected with first extension spring support and air current switching valve respectively, first valve extension spring that resets is towards air current switches over the valve with the confined direction application of force of new trend heat extraction mouth.
The fresh air control valve is connected with a second valve rotating shaft and a second valve reset torsion spring, the fresh air control valve realizes turnover motion through the second valve rotating shaft, and the second valve reset torsion spring applies force to the fresh air inlet in the direction closed by the fresh air control valve.
The traction mechanism comprises a valve tractor, and the valve tractor is connected with the airflow switching valve and the fresh air control valve through a traction rope and a pulley.
The outside of the fresh air inlet is provided with a fresh air filter screen.
The low-temperature parts of the airflow switching channel and the fresh air control channel adopt physical heat preservation and heat insulation.
The air flow switching valve and the fresh air control valve are driven by a bidirectional motor to perform overturning motion.
The invention has the beneficial effects that:
1. the invention and cabinet form a relatively closed air current circulation system, the condenser forced circulation cooling of the invention and fresh air cooling share a circulating fan, control system and some air current channels, the invention realizes the fresh air cooling function when the ambient temperature is lower, the cold air is introduced after being filtered from the outside of the system, and is discharged from the inside of the system to the outside of the cabinet after absorbing heat in the cabinet; at higher ambient temperatures, the air stream circulates inside the cabinet system without filtration, and the circulating air stream is cooled by a condenser.
2. The design of the forced cooling channel can greatly improve the heat dissipation effect of the equipment, so that the equipment can be applied to the structure of a network cabinet based on an integrated air conditioner.
3. The invention can solve the defects in the prior art and well solve the problems of heat dissipation, fresh air heat dissipation and emergency heat dissipation of the small and miniature modular data center network cabinet condenser; meanwhile, through reasonable internal and external circulation switching, unnecessary system energy consumption can be reduced, energy conservation and emission reduction are achieved, and equipment in the cabinet cannot be damaged due to overhigh temperature when the condenser stops refrigerating due to reasons.
4. The airflow valve switching assembly designed by the invention has the advantages of simple structure, low cost, stable operation and capability of flexibly switching the opening and closing of the corresponding interface; can not bring in debris when guaranteeing to introduce external air current through the filter screen that sets up, can ensure through the heat preservation insulating layer that sets up that the air current switches the outside of passageway, fresh air control passageway and is unlikely to influence the use after the low temperature dewfall, can derive the outside of system with the comdenstion water that the condenser condenses through the water collector and the comdenstion water delivery port that set up, avoid influencing the normal operating of system.
Drawings
FIG. 1 is a schematic diagram of the principle structure of the present invention.
Fig. 2 is a sectional view of a portion a-a of fig. 1.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
As shown in fig. 1, the invention provides a heat dissipation device for a dual cold source network cabinet without overflowing condensed water. The equipment can be arranged at the upper part, the lower part or the periphery of the network cabinet and forms an airflow internal circulation system and an airflow external circulation system together with the cabinet space.
The apparatus comprises:
the forced cooling channel 2 is internally provided with a return air inlet 1, an evaporator 3 and a circulating fan 4 which are communicated with the inside of the cabinet, wherein the circulating fan 4 is provided with a circulating fan return air inlet 4-1, a circulating fan rotating blade 4-2 and a circulating fan air outlet 4-3, the negative pressure generated by the circulating fan return air inlet 4-1 can suck hot air in the cabinet from the return air inlet 1 into the forced cooling channel 2, and the hot air is sent into an air flow switching channel 5 through the circulating fan air outlet 4-3; the airflow switching channel 5 is provided with an internal interface 6 and a fresh air exhaust port 9; the fresh air control channel 7 is provided with an air supply outlet 8 communicated with the interior of the cabinet and a fresh air inlet 10 used for introducing air flow outside the system, and the fresh air control channel 7 is communicated with the air flow switching channel 5 through an internal interface 6; the forced heat dissipation channel 19 always works in an external circulation mode, heat dissipation air is discharged through a heat dissipation air inlet 20, a heat dissipation fan 18, a condenser 22 and a condensation heat exhaust port 21, the compressor 23 is used for enabling refrigerant to be in forced circulation to enable the evaporator 3 to be cooled, the heat dissipation air inlet 20, the condenser 22 and the condensation heat exhaust port 21 are used for discharging heat released by the refrigerant, and the forced heat dissipation channel 19 is communicated with the airflow switching channel 5 through a fresh air heat exhaust port 9; and the valve assembly is used for controlling the opening and closing of the fresh air exhaust opening 9, the internal interface 6 and the fresh air inlet 10.
In the above structure of the invention, the valve assembly includes an airflow switching valve 12 and a fresh air control valve 13, the airflow switching valve 12 is used for switching between the internal interface 6 and the fresh air heat exhaust port 9, so that one of the ports is closed while the other port is opened, even if the internal interface 6 is closed, the fresh air heat exhaust port 9 is opened, and when the internal interface 6 is opened, the fresh air heat exhaust port 9 is closed, and the fresh air control valve 13 is used for controlling the opening and closing of the fresh air inlet 10. Specifically, the valve assembly of the present invention further comprises a traction mechanism, and the traction mechanism can simultaneously control the actions of the airflow switching valve 12 and the fresh air control valve 13.
The air flow switching valve 12 provided by the invention has the following specific structure: the air flow switching valve 12 is connected with a first valve rotating shaft 12-1, a first valve reset tension spring 12-2 and a first tension spring support 12-3, the air flow switching valve 12 realizes overturning motion through the first valve rotating shaft 12-1, two ends of the first valve reset tension spring 12-2 are respectively connected with the first tension spring support 12-3 and the air flow switching valve 12, and the first valve reset tension spring 12-2 applies force towards the direction that the air flow switching valve 12 seals the fresh air heat discharging opening 9. The specific structure of the fresh air control valve 13 is as follows: the fresh air control valve 13 realizes turnover movement through the second valve rotating shaft 13-1, and the second valve reset torsion spring 13-2 applies force to the fresh air inlet 10 in the direction towards the fresh air control valve 13 in which the fresh air inlet 10 is closed. The traction mechanism comprises a valve tractor 14, wherein the valve tractor 14 is connected with the airflow switching valve 12 and the fresh air control valve 13 through a traction rope and a pulley.
The heat dissipating apparatus of the present invention has an inner circulation mode and an outer circulation mode.
Wherein the working state of each component in the internal circulation mode is as follows: the compressor 23 is started, the evaporator 3 is in a low-temperature state, the circulating fan 4 and the heat dissipation fan 18 are operated, heat absorbed by the evaporator 3 is pushed by the compressor 23 to be circularly transmitted to the condenser 22, outdoor air sucked by the heat dissipation air inlet 20 is heated by the condenser 22 and then is discharged from the heat discharge port 21, and therefore heat emitted by the refrigerant is taken away. At this time, the valve retractor 14 is in a release state, the airflow switching valve 12 resets and blocks the fresh air exhaust opening 9 under the tension action of the first valve reset tension spring 12-2, the internal interface 6 is unblocked, and the fresh air control valve 13 resets and blocks the fresh air inlet 10 under the torsion action of the second valve reset torsion spring 13-2. At the moment, the invention and the cabinet form a relatively closed internal airflow circulating system, and the airflow working process is as follows: the negative pressure generated by the air return opening 4-1 of the circulating fan sucks hot air in the cabinet from the air return opening 1 into the forced cooling channel 2, the hot air is cooled by the evaporator 3 and then pressurized by the circulating fan 4, the pressurized cold air flow is sent to the air flow switching channel 5 from the air outlet 4-3 of the circulating fan, the cold air flow enters the fresh air control channel 7 through the internal interface 6, and the higher-pressure cold air flow is sent into the network cabinet from the air supply opening 8, so that the aim of radiating equipment in the cabinet is fulfilled; the first heat insulation layer 16, the second heat insulation layer 16-1 and the third heat insulation layer 16-2 ensure that the outer sides of the airflow switching channel 5 and the fresh air control channel 7 are not condensed due to low temperature; the condensed water condensed on the evaporator 3 falls into the water receiving tray 17 and is guided out by the condensed water guide outlet 17-1.
Working states of components in an external circulation mode are as follows: the compressor 23 stops working, the evaporator 3 stops refrigerating, the circulating fan 4 and the cooling fan 18 operate, the valve tractor 14 operates, the first traction rope 14-1 is partially wound into the valve tractor 14 to be shortened, the second traction rope 14-5 follows the first traction rope 14-1 to operate, the airflow switching valve 12 is dragged to block the internal interface 6, the fresh air exhaust opening 9 is unblocked, the fresh air control valve 13 is dragged to be opened, and the fresh air inlet 10 is unblocked.
Workflow of the external circulation mode: the negative pressure generated by the air return opening 4-1 of the circulating fan sucks hot air in the cabinet from the air return opening 1 into the forced heat dissipation channel 2, at the moment, the evaporator 3 does not work, hot air flows are pressurized by the circulating fan 4 after passing through the evaporator 3, the pressurized hot air flows are sent to the air flow switching channel 5 from the air outlet 4-3 of the circulating fan, the internal interface 6 is blocked by the air flow switching valve 12, the hot air with higher pressure is discharged into the forced heat dissipation channel 19 from the fresh air heat discharge opening 9, and then is discharged out of the system through the condenser 22 and the heat discharge opening 21 under the condition that the heat dissipation fan 18 is pressurized again; on the other hand, the negative pressure generated by the return air inlet 4-1 of the circulating fan reduces the internal air pressure of the cabinet through the forced cooling channel 2 and the return air inlet 1, so that the air pressure of the air supply outlet 8 and the fresh air control channel 7 connected with the cabinet is reduced, low-temperature air outside the system enters the fresh air control channel 7 through the fresh air filter screen 11 and the fresh air inlet 10 and enters the cabinet through the air supply outlet 8, and the aim of dissipating heat of equipment in the cabinet is fulfilled.
The multifunctional cooling equipment has the fresh air cooling function and the condenser cooling function, so that the design of the cabinet is greatly simplified, the production cost of the whole system is reduced, and the energy consumption is also reduced.
Claims (10)
1. A double-cold-source network cabinet heat dissipation device without condensate water overflow is used for forming a relatively closed airflow circulating system with a cabinet, and is characterized by comprising:
the forced cooling channel is internally provided with a refrigeration side of a compressor forced refrigeration system, namely an evaporator and a circulating fan; the negative pressure generated by the fan return air inlet of the circulating fan can suck hot air in the cabinet from the return air inlet and send the hot air into the airflow switching channel through the circulating fan air outlet;
an airflow switching channel, the airflow switching channel inlet end being in communication with the forced cooling channel, the airflow switching channel having two switchable airflow outlets: the air flow switching valve is controlled by a control system in the channel, so that the air flow entering the air flow switching channel is discharged between the internal interface and the fresh air heat discharging port;
the fresh air control channel is connected with the airflow switching channel through an internal interface and is provided with an air supply outlet communicated with the interior of the cabinet, a fresh air inlet used for introducing low-temperature airflow outside the system and a fresh air control valve;
the forced heat dissipation channel is provided with a heat dissipation air inlet and a condensation heat dissipation opening for introducing external air flow of the system, and a heat dissipation side of a universal compressor forced refrigeration system: namely a compressor, a condenser, a pressure reducing device and a connecting copper pipe.
2. The dual cold-source network cabinet heat dissipation device without overflowing of condensed water as claimed in claim 1, wherein the fresh air exhaust port of the airflow switching channel is connected to the forced heat dissipation channel.
3. The dual cold source network cabinet heat dissipation apparatus without condensate overflow of claim 1, wherein the airflow switching valve is configured to switch between the internal interface and the fresh air exhaust port, such that one port is closed while the other port is open, and the fresh air control valve is configured to control opening and closing of the fresh air inlet.
4. The dual cold source network cabinet heat sink apparatus without condensate overflow of claim 3, wherein the valve assembly further comprises a pulling mechanism, and the pulling mechanism controls the air flow switching valve and the fresh air control valve to operate simultaneously.
5. The dual-cold-source network cabinet heat dissipation device without overflowing of condensed water as claimed in claim 4, wherein the airflow switching valve is connected to a first valve rotating shaft, a first valve return tension spring and a first tension spring support, the airflow switching valve is turned over through the first valve rotating shaft, two ends of the first valve return tension spring are respectively connected to the first tension spring support and the airflow switching valve, and the first valve return tension spring applies force to the airflow switching valve in a direction that the fresh air exhaust opening is closed.
6. The dual cold source network cabinet heat dissipation device without overflowing of condensed water as claimed in claim 5, wherein the fresh air control valve is connected to the second valve rotating shaft and a second valve reset torsion spring, the fresh air control valve is turned over by the second valve rotating shaft, and the second valve reset torsion spring applies force to the fresh air control valve in a direction of closing the fresh air inlet.
7. The dual cold source network cabinet heat dissipation apparatus without overflowing of condensed water of claim 6, wherein the pulling mechanism comprises a valve puller, and the valve puller is connected with the airflow switching valve and the fresh air control valve through a pulling rope and a pulley.
8. The dual-cold-source network cabinet heat dissipation device without overflowing of condensed water as claimed in claim 1, wherein a fresh air filter screen is disposed outside the fresh air inlet.
9. The dual-cold-source network cabinet heat dissipation device without overflowing of condensed water as recited in claim 1, wherein the low-temperature parts of the airflow switching channel and the fresh air control channel are insulated by physical heat preservation.
10. The dual cold source network cabinet heat sink apparatus without overflowing of condensed water of claim 1, wherein the airflow switching valve and the fresh air control valve are driven by a bidirectional motor for turning over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911309871.0A CN110944496B (en) | 2019-12-18 | 2019-12-18 | Double-cold-source network cabinet heat dissipation equipment without condensate water overflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911309871.0A CN110944496B (en) | 2019-12-18 | 2019-12-18 | Double-cold-source network cabinet heat dissipation equipment without condensate water overflow |
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| CN110944496A true CN110944496A (en) | 2020-03-31 |
| CN110944496B CN110944496B (en) | 2024-08-02 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634477A (en) * | 2008-07-25 | 2010-01-27 | 华为技术有限公司 | Heat exchanger and communication device |
| WO2017118213A1 (en) * | 2016-01-05 | 2017-07-13 | 中兴通讯股份有限公司 | Modular refrigeration apparatus |
| CN108901189A (en) * | 2018-09-10 | 2018-11-27 | 南京吉左网络科技股份有限公司 | A kind of cooling equipment of double cold sources of network cabinet |
| CN109041547A (en) * | 2018-09-10 | 2018-12-18 | 南京吉左网络科技股份有限公司 | A kind of double cold source cooling connector devices of network cabinet |
| CN211240602U (en) * | 2019-12-18 | 2020-08-11 | 南京吉左网络科技股份有限公司 | Double-cold-source network cabinet heat dissipation equipment without overflow of condensed water |
-
2019
- 2019-12-18 CN CN201911309871.0A patent/CN110944496B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634477A (en) * | 2008-07-25 | 2010-01-27 | 华为技术有限公司 | Heat exchanger and communication device |
| WO2017118213A1 (en) * | 2016-01-05 | 2017-07-13 | 中兴通讯股份有限公司 | Modular refrigeration apparatus |
| CN108901189A (en) * | 2018-09-10 | 2018-11-27 | 南京吉左网络科技股份有限公司 | A kind of cooling equipment of double cold sources of network cabinet |
| CN109041547A (en) * | 2018-09-10 | 2018-12-18 | 南京吉左网络科技股份有限公司 | A kind of double cold source cooling connector devices of network cabinet |
| CN211240602U (en) * | 2019-12-18 | 2020-08-11 | 南京吉左网络科技股份有限公司 | Double-cold-source network cabinet heat dissipation equipment without overflow of condensed water |
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