CN118368875A - Double-cold-source energy-saving heat management device for cabinet - Google Patents
Double-cold-source energy-saving heat management device for cabinet Download PDFInfo
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- CN118368875A CN118368875A CN202410781357.1A CN202410781357A CN118368875A CN 118368875 A CN118368875 A CN 118368875A CN 202410781357 A CN202410781357 A CN 202410781357A CN 118368875 A CN118368875 A CN 118368875A
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- air outlet
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- 238000005057 refrigeration Methods 0.000 claims abstract description 25
- 239000003507 refrigerant Substances 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 12
- 230000005494 condensation Effects 0.000 description 9
- 238000009833 condensation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 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
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
- H05K5/0214—Venting apertures; Constructional details thereof with means preventing penetration of rain water or dust
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- 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
- H05K7/14—Mounting supporting structure in casing or on frame or rack
-
- 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
- H05K7/20181—Filters; Louvers
-
- 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
- H05K7/202—Air circulating in closed loop within enclosure wherein heat is removed through heat-exchangers
-
- 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
- H05K7/20209—Thermal management, e.g. fan control
-
- 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
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20309—Evaporators
-
- 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
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
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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
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
-
- 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
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20336—Heat pipes, e.g. wicks or capillary pumps
-
- 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
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20354—Refrigerating circuit comprising a compressor
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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
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20381—Thermal management, e.g. evaporation control
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a double-cold-source energy-saving heat management device for a cabinet, which comprises: the cabinet body is internally provided with a baffle plate, and the baffle plate divides the interior of the cabinet body into a first chamber and a second chamber which are independent in a sealing way; the first chamber is provided with a first air inlet and a first air outlet; a first fan is arranged in the first air outlet; the second chamber is provided with a second air inlet, a second air outlet and a third air outlet; a second fan is arranged in the second air outlet, and a third fan is arranged in the third air outlet; the cabinet body is internally provided with a phase-change heat pipe heat exchanger penetrating through the first chamber and the second chamber; an evaporator is arranged in the first chamber, a refrigeration compressor, an air-cooled condenser and a throttling element are arranged in the second chamber, and the refrigeration compressor, the air-cooled condenser, the throttling element and the evaporator are sequentially connected to form a refrigerant loop. The invention realizes the integration and modularization of the double-cold-source heat exchange, is convenient to assemble, disassemble and maintain, and saves energy.
Description
Technical Field
The invention relates to the technical field of energy-saving heat management of outdoor cabinets, in particular to a double-cold-source energy-saving heat management device for a cabinet.
Background
At present, temperature control equipment for an outdoor communication base station cabinet mainly comprises a door-mounted air conditioner adopting a compressor for refrigeration, a heat exchanger adopting a sensible heat exchanger and a natural ventilator adopting a fan. However, these types of temperature control devices have limitations, and cannot meet the temperature in the control cabinet, and cannot achieve the purpose of energy saving at the same time.
For example, the working efficiency of the heat exchanger depends on the temperature difference between the interior and the exterior of the cabinet, the equipment in the cabinet is not more, the total heat productivity is not great, and the heat exchanger is effective when the temperature of the external natural environment is low, but when the temperature of the environment is high in summer, the heat exchanger can not meet the requirement of temperature control in the cabinet, thereby leading to high-temperature alarm and even the condition that the communication equipment is taken out of service.
For example, a mode of installing natural ventilation equipment is adopted, mainly an exhaust fan, and fresh air outside the cabinet is directly used for cooling the interior of the cabinet. Although the mode of natural ventilation can play certain cooling effect, but in the external air of cabinet directly gets into the cabinet, caused the serious excessive standard of dust cleanliness factor in the cabinet, steam can bring the potential safety hazard for communication equipment operation, and the comdenstion water that produces when temperature variation can cause electrical equipment's damage even.
In the case that the power consumption and the heat productivity of the communication equipment are further increased, how to quickly and conveniently improve the performance of the air conditioner, reduce the power consumption and prolong the service life of the air conditioner at lower cost by adopting the temperature control mode of the door-mounted air conditioner refrigerated by the compressor has become a highly focused pain point in the field of outdoor communication base stations.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a double-cold-source energy-saving heat management device for a cabinet.
The invention provides a double-cold-source energy-saving heat management device for a cabinet, which comprises: the device comprises a cabinet body, a partition plate, a phase-change heat pipe heat exchanger, a refrigeration compressor, an air-cooled condenser, a throttling element, an evaporator, a first fan, a second fan and a third fan;
the partition board is vertically arranged in the cabinet body and extends along a first horizontal direction, the partition board partitions the interior of the cabinet body into a first chamber and a second chamber which are sequentially arranged along a second horizontal direction perpendicular to the first horizontal direction, and the first chamber and the second chamber are sealed and independent;
The cabinet body comprises a first side wall and a second side wall which are opposite to each other in the first horizontal direction, a first air inlet is formed in the position, corresponding to the first cavity, of the first side wall, and the first air inlet is used for being connected with an air outlet of the cabinet; a first air outlet is formed in the position, corresponding to the first cavity, of the second side wall, and the first air outlet is used for being connected with an air inlet of the cabinet; the first side wall and the second chamber are provided with a second air inlet corresponding to each other, the second air inlet is used for being connected with the natural environment, the cabinet body is provided with a second air outlet on a third side wall which is in a second horizontal direction and is adjacent to the second chamber, and the second air outlet is used for being connected with the natural environment; a third air outlet is formed in the position, corresponding to the second cavity, of the second side wall, and the third air outlet is used for being connected with the natural environment;
The phase-change heat pipe heat exchanger is arranged in the first cavity, and one end of the phase-change heat pipe heat exchanger penetrates through the partition plate and stretches into the second cavity; the evaporator is arranged in a first cavity between the phase-change heat pipe exchanger and the first air outlet, the refrigeration compressor, the air-cooled condenser and the throttling element are all arranged in a second cavity, the air-cooled condenser is close to the second air outlet, and the refrigeration compressor, the air-cooled condenser, the throttling element and the evaporator are sequentially connected to form a refrigerant loop; the first fan is installed in first air outlet, and the second fan is installed in the second air outlet, and the third fan is installed in the third air outlet.
Preferably, the phase-change heat pipe heat exchanger comprises one or more first phase-change heat pipe heat exchange components, the first phase-change heat pipe heat exchange components comprise a plurality of first micro-channel flat pipes which are sequentially arranged at intervals from top to bottom, the first micro-channel flat pipes are all arranged along a second horizontal direction, each first micro-channel flat pipe is filled with a first phase-change medium, and the first phase-change medium is changed from a liquid state to a gas state after absorbing heat and is changed from the gas state to the liquid state after releasing heat;
When the plurality of first phase-change heat pipe heat exchange assemblies are arranged, the plurality of first phase-change heat pipe heat exchange assemblies are sequentially arranged at intervals along the first horizontal direction.
Preferably, each first microchannel flat tube is welded with a first aluminum fin.
Preferably, the first aluminum fin is flat-sheet, corrugated-sheet or windowed-sheet.
Preferably, a plurality of first micro-channel flat tubes in each first phase-change heat pipe heat exchange assembly are connected end to end in sequence to form a continuous first micro-channel flat tube runner.
Preferably, the phase-change heat pipe heat exchanger further comprises one or more second phase-change heat pipe heat exchange components, and the one or more second phase-change heat pipe heat exchange components are arranged on one side, close to the first air outlet, of the one or more first phase-change heat pipe heat exchange components in a one-to-one correspondence manner;
The second phase-change hot air pipe heat exchange assembly comprises a plurality of second micro-channel flat pipes which are sequentially arranged at intervals from top to bottom, each second micro-channel flat pipe is filled with a second phase-change medium, and the second phase-change medium is changed from a liquid state to a gas state after absorbing heat and is changed from the gas state to a liquid state after releasing heat;
The second micro-channel flat pipes in each second phase-change hot air pipe heat exchange assembly and the first micro-channel flat pipes in the corresponding first phase-change heat exchange assembly are arranged in a staggered manner in the height direction.
Preferably, each second microchannel flat tube is welded with a second aluminum fin.
Preferably, the second aluminum fin is flat-sheet, corrugated-sheet or windowed-sheet.
Preferably, a plurality of second micro-channel flat pipes in each second-phase hot air pipe heat exchange assembly are connected end to end in sequence to form a continuous second micro-channel flat pipe runner.
Preferably, the second phase change medium is the same as or different from the first phase change medium.
Preferably, the air inlet direction of the air-cooled condenser is parallel to the air inlet direction of the second air outlet.
Preferably, a filter screen is installed in the second air inlet.
Preferably, a shutter is installed at one end of the third air outlet far away from the interior of the cabinet body.
Preferably, the intelligent cabinet temperature control system further comprises a controller and a temperature acquisition mechanism which is arranged in the cabinet and used for acquiring real-time temperature in the cabinet, wherein the temperature acquisition mechanism, the first fan, the second fan, the third fan, the refrigeration compressor and the throttling element are respectively and electrically connected with the controller.
According to the double-cold-source energy-saving heat management device for the cabinet, the partition board is arranged in the cabinet body, the two closed independent first chambers and the second chambers are formed in the cabinet body, the first chambers and the cabinet interior form internal circulation through the first air inlet and the first air outlet, dust in natural environment cannot enter the first chambers and the cabinet interior, and cleanliness of the first chambers and the cabinet interior can be effectively maintained;
then, the phase-change heat pipe heat exchangers penetrating through the first cavity and the second cavity are used for carrying out phase-change heat exchange by utilizing air in natural environment when the temperature in the first cavity is in a lower high temperature range (namely a first preset temperature range), so that the energy consumption is greatly reduced, and the energy is effectively saved;
Then, the air in the first chamber is compressed and refrigerated through the refrigerating compressor, the air-cooled condenser, the throttling element, the evaporator, the second fan and the third fan in a high temperature range (namely a second preset temperature range and a third preset temperature range) in the first chamber, so that the refrigerating effect on the air in the first chamber can be effectively ensured, and the aim of cooling in the cabinet is fulfilled;
Finally, the phase-change heat pipe heat exchanger, the refrigeration compressor, the air-cooled condenser, the throttling element and the evaporator, the first fan, the second fan and the third fan are all integrally installed inside the cabinet body, the integration and modularization of double-cold-source heat exchange are realized, all parts are not required to be installed in the cabinet in a scattered mode, the cabinet is easy to transport and assemble, and the cabinet is connected with the cabinet only through pipelines, so that the cabinet is convenient to assemble, disassemble and maintain, and the workload in the process of disassembling and operating is greatly reduced.
Drawings
Fig. 1 is a schematic perspective view of a dual-cold-source energy-saving heat management device for a cabinet according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a dual-cold-source energy-saving heat management device for a cabinet according to an embodiment of the invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 and 2, the dual-cold-source energy-saving thermal management device for a cabinet according to the present invention includes: the device comprises a cabinet body 1, a partition plate 2, a phase-change heat pipe heat exchanger 3, a refrigeration compressor 6, an air-cooled condenser 5, a throttling element 7, an evaporator 4, a first fan 9, a second fan 11 and a third fan 10;
The partition board 2 is vertically arranged in the cabinet body 1 and extends along a first horizontal direction, the partition board 2 partitions the interior of the cabinet body 1 into a first chamber and a second chamber which are sequentially arranged along a second horizontal direction perpendicular to the first horizontal direction, and the first chamber and the second chamber are sealed and independent;
The cabinet body 1 comprises a first side wall and a second side wall which are opposite to each other in the first horizontal direction, a first air inlet communicated with the first chamber is formed in the position, corresponding to the first chamber, of the first side wall, and the first air inlet is used for being connected with an air outlet of the cabinet; a first air outlet communicated with the first chamber is formed in the position, corresponding to the first chamber, of the second side wall, and the first air outlet is used for being connected with an air inlet of the cabinet; a second air inlet communicated with the second chamber is formed in the corresponding position of the first side wall and the second chamber, the second air inlet is used for being connected with the natural environment, a second air outlet communicated with the second chamber is formed in the third side wall, adjacent to the second chamber, of the cabinet body 1 in the second horizontal direction, and the second air outlet is used for being connected with the natural environment; a third air outlet communicated with the second cavity is formed in the position, corresponding to the second cavity, of the second side wall, and the third air outlet is used for being connected with the natural environment;
The phase-change heat pipe heat exchanger 3 is arranged in the first cavity, and one end of the phase-change heat pipe heat exchanger 3 penetrates through the partition plate 2 and stretches into the second cavity; the evaporator 4 is arranged in a first cavity between the phase-change heat pipe heat exchanger 3 and the first air outlet, the refrigeration compressor 6, the air-cooled condenser 5 and the throttling element 7 are all arranged in a second cavity, the air-cooled condenser 5 is close to the second air outlet, and the refrigeration compressor 6, the air-cooled condenser 5, the throttling element 7 and the evaporator 4 are sequentially connected to form a refrigerant loop; the first fan 9 is installed in first air outlet, and the second fan 11 is installed in the second air outlet, and the third fan 10 is installed in the third air outlet.
When the phase-change heat pipe heat exchanger is particularly used, the part of the phase-change heat pipe heat exchanger 3 positioned in the first cavity is called as an evaporation end of the phase-change heat pipe heat exchanger 3, and the part of the phase-change heat pipe heat exchanger 3 positioned in the second cavity is called as a condensation end of the phase-change heat pipe heat exchanger 3;
When the temperature in the cabinet is in a first preset temperature range, the first fan 9 and the third fan 10 are started, the second fan 11 is stopped, and the refrigeration compressor 6 and the throttling element 7 are not started; at this time, the first fan 9 sends the high-temperature air in the cabinet to the evaporation end of the phase-change heat pipe heat exchanger 3 from the first air inlet, so that the first phase-change medium in the phase-change heat pipe heat exchanger 3 absorbs heat in the air to generate phase change, the heat is transferred to the condensation end of the phase-change heat pipe heat exchanger 3, and the air after heat exchange in the first chamber enters the cabinet from the first air inlet; meanwhile, the third fan 10 sends natural wind in the natural environment to the condensation end of the phase-change heat pipe heat exchanger 3 from the second air inlet and discharges the natural wind from the third air outlet so as to take away heat, and the purpose of cooling the air in the first chamber is achieved through the phase-change heat exchange of the phase-change heat pipe heat exchanger 3, so that the purpose of cooling the interior of the cabinet is achieved;
When the temperature in the cabinet is in a second preset temperature range, the first fan 9 and the second fan 11 are started and the third fan 10 is stopped, and the refrigeration compressor 6 and the throttling element 7 are started when the second preset temperature range is larger than the first preset temperature range; at this time, the first fan 9 sends the high-temperature air in the cabinet to the evaporator 4 from the first air inlet, so that the refrigerant in the evaporator 4 absorbs heat in the air to generate phase change, the heat is transferred to the condenser, and the air after heat exchange in the first chamber enters the cabinet from the first air inlet; meanwhile, the second fan 11 sends natural wind in the natural environment to the condenser from the second air inlet and discharges the natural wind from the second air outlet so as to take away heat, and the purpose of cooling the air in the first chamber is achieved by matching the refrigeration compressor 6, the air-cooled condenser 5, the throttling element 7, the evaporator 4 and the second fan 11, so that the purpose of cooling the interior of the cabinet is achieved;
When the temperature in the cabinet is in a third preset temperature range, the third preset temperature range is larger than the second preset temperature range, the first fan 9, the second fan 11 and the third fan 10 are all started, and the refrigeration compressor 6 and the throttling element 7 are controlled to be started; at this time, the first fan 9 sends the high-temperature air in the cabinet to the evaporation end of the phase-change heat pipe heat exchanger 3 and the evaporator 4 from the first air inlet, so that the first phase-change medium in the phase-change heat pipe heat exchanger 3 and the refrigerant in the evaporator 4 absorb heat in the air to generate phase change, the heat is transferred to the condensation end of the phase-change heat pipe heat exchanger 3 and the condenser, and the air after heat exchange in the first chamber enters the cabinet from the first air inlet; meanwhile, the third fan 10 sends natural wind in the natural environment to the condensation end of the phase-change heat pipe heat exchanger 3 from the second air inlet and discharges the natural wind from the third air outlet; meanwhile, natural wind in the natural environment is sent to the condenser through the second air inlet and is discharged through the second air outlet to take away heat, and the purpose of cooling air in the first chamber is achieved through the cooperation of the phase-change heat pipe heat exchanger 3, the refrigeration compressor 6, the air-cooled condenser 5, the throttling element 7, the evaporator 4, the second fan 11 and the third fan 10, so that the purpose of cooling the interior of the cabinet is achieved.
According to the invention, the partition board 2 is arranged in one cabinet body 1, two airtight independent first chambers and second chambers are arranged in the cabinet body 1, the first chambers and the interior of the cabinet form internal circulation through the first air inlet and the first air outlet, dust in natural environment cannot enter the interior of the first chambers and the interior of the cabinet, and cleanliness of the interior of the first chambers and the interior of the cabinet can be ensured;
Then, the phase-change heat pipe heat exchanger 3 penetrating through the first cavity and the second cavity is used for carrying out phase-change heat exchange by utilizing air in natural environment when the temperature in the first cavity is in a lower high temperature range (namely a first preset temperature range), so that the energy consumption is greatly reduced, and the energy is effectively saved;
Then, the air in the first chamber is compressed and refrigerated through the refrigerating compressor 6, the air-cooled condenser 5, the throttling element 7, the evaporator 4, the second fan 11 and the third fan 10 in a high temperature range (namely a second preset temperature range and a third preset temperature range) in the first chamber, so that the refrigerating effect on the air in the first chamber can be effectively ensured, and the aim of cooling in the cabinet is fulfilled;
Finally, the phase-change heat pipe heat exchanger 3, the refrigeration compressor 6, the air-cooled condenser 5, the throttling element 7, the evaporator 4, the first fan 9, the second fan 11 and the third fan 10 are integrally installed inside the cabinet body 1, so that the integration and modularization of double-cold-source heat exchange are realized, all parts are not required to be installed in a cabinet in a dispersing manner, the cabinet is easy to transport and assemble, and the cabinet are connected only through pipelines, so that the cabinet is convenient to assemble, disassemble and maintain, and the workload in the disassembling operation is greatly reduced.
In this embodiment, the air inlet direction of the air-cooled condenser 5 is parallel to the air inlet direction of the second air outlet, so as to improve the condensation effect of the air-cooled condenser 5.
In the present embodiment, a drier-filter 8 is also included, the drier-filter 8 being connected between the air-cooled condenser 5 and the throttling element 7.
In the present embodiment, the device further comprises a controller 13 and a temperature acquisition mechanism installed in the cabinet and used for acquiring real-time temperature in the cabinet, wherein the temperature acquisition mechanism, the first fan 9, the second fan 11, the third fan 10, the refrigeration compressor 6 and the throttling element 7 are respectively electrically connected with the controller 13.
Specifically, the controller 13 is mounted on the cabinet 1.
When the cooling device is particularly used, the control module is used for controlling the first fan 9, the second fan 11, the third fan 10, the refrigeration compressor 6 and the throttling element 7 to act in a coordinated manner according to the real-time temperature in the cabinet so as to finish cooling of the cabinet.
When the temperature in the cabinet is in a first preset temperature range, the controller 13 controls the first fan 9 and the third fan 10 to be started and the second fan 11 to be stopped, and controls the refrigeration compressor 6 and the throttling element 7 to be closed;
When the temperature in the cabinet is in the second preset temperature range, the controller 13 controls the first fan 9 and the second fan 11 to be started and the third fan 10 to be stopped, and controls the refrigeration compressor 6 and the throttling element 7 to be started;
when the temperature in the cabinet is in the third preset temperature range, the controller 13 controls the first fan 9, the second fan 11 and the third fan 10 to be started, and controls the refrigeration compressor 6 and the throttling element 7 to be started.
In this embodiment, a filter 14 is installed in the second air inlet to prevent dust from entering the second chamber.
In this embodiment, a damper louver 12 is installed at one end of the third air outlet, which is far away from the interior of the cabinet 1.
When the second fan 11 is in a stop state and the third fan 10 is started, air in the natural environment enters the second cavity through the second air inlet and passes through the phase-change heat pipe heat exchanger 3 to the third air outlet, the air door louver 12 is automatically blown up, the air freely passes through, and the air in the natural environment cools the condensation end of the phase-change heat pipe heat exchanger 3; when the third fan 10 is shut down, the air door louver 12 is automatically closed due to gravity, and air in the natural environment cannot enter the second cavity through the second air inlet to cool the condensation end of the phase-change heat pipe heat exchanger 3, so that the heat in the air in the natural environment can be effectively prevented from being conducted to the condensation end of the phase-change heat pipe heat exchanger 3, the phase-change heat pipe heat exchanger 3 is prevented from transferring heat into the first cavity, and the heat is effectively prevented from being brought into the cabinet by the air passing through the first cavity.
In order to effectively improve the heat exchange effect of the phase-change heat pipe heat exchanger 3, in the embodiment, the phase-change heat pipe heat exchanger 3 comprises one or more first phase-change heat pipe heat exchange components, the first phase-change heat pipe heat exchange components comprise a plurality of first micro-channel flat pipes which are sequentially arranged at intervals from top to bottom, the first micro-channel flat pipes are all arranged along a second horizontal direction, a first phase-change medium is filled in each first micro-channel flat pipe, and the first phase-change medium is changed from a liquid state to a gaseous state after absorbing heat and is changed from a gaseous state to a liquid state after releasing heat;
When the plurality of first phase-change heat pipe heat exchange assemblies are arranged, the plurality of first phase-change heat pipe heat exchange assemblies are sequentially arranged at intervals along the first horizontal direction.
In a further embodiment, a plurality of first micro-channel flat tubes in each first phase-change heat pipe heat exchange assembly are sequentially connected end to form a continuous first micro-channel flat tube runner, so that the heat exchange effect of the first phase-change heat pipe heat exchange assembly is further improved.
In a further embodiment, each first microchannel flat tube is welded with a first aluminum fin to increase the heat dissipation area in contact with air, thereby accelerating heat dissipation.
The first aluminum fin is flat, corrugated or windowed, so as to enhance disturbance when air flows through, and further improve heat exchange efficiency.
In order to further improve the heat exchange effect of the phase-change heat pipe heat exchanger 3, in a further embodiment, the phase-change heat pipe heat exchanger 3 further comprises one or more second phase-change heat pipe heat exchange components, and the one or more second phase-change heat pipe heat exchange components are arranged on one side of the one or more first phase-change heat pipe heat exchange components, which is close to the first air outlet, in a one-to-one correspondence manner;
The second phase-change hot air pipe heat exchange assembly comprises a plurality of second micro-channel flat pipes which are sequentially arranged at intervals from top to bottom, each second micro-channel flat pipe is filled with a second phase-change medium, and the second phase-change medium is changed from a liquid state to a gas state after absorbing heat and is changed from the gas state to a liquid state after releasing heat;
The second micro-channel flat pipes in each second phase-change hot air pipe heat exchange assembly and the first micro-channel flat pipes in the corresponding first phase-change heat exchange assembly are arranged in a staggered manner in the height direction.
In a further specific embodiment, a plurality of second micro-channel flat tubes in each second phase heating air tube heat exchange assembly are sequentially connected end to form a continuous second micro-channel flat tube runner so as to further improve the heat exchange effect of the second phase heating air tube heat exchange assembly.
In a further embodiment, each of the second microchannel flat tubes is welded with a second aluminum fin to increase the heat dissipation area in contact with air, thereby accelerating heat dissipation.
The second aluminum fin is flat, corrugated or windowed, so as to enhance disturbance when air flows through, and further improve heat exchange efficiency.
In one embodiment, the second phase change medium is the same as the first phase change medium.
Specifically, the second phase change medium and the first phase change medium are both R-134a refrigerant or R410a refrigerant.
Of course, in other embodiments, the first phase change medium and the second phase change medium may be other more environmentally friendly refrigerant species.
In another specific embodiment, the second phase change medium is different from the first phase change medium to effectively ensure the phase change heat exchange effect.
Specifically, the first phase change medium is R134a refrigerant and the second phase change medium is R410a refrigerant.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. A dual-cold source energy-saving thermal management device for a cabinet, comprising: a cabinet body (1),
A partition board (2) extending along a first horizontal direction is arranged in the cabinet body (1), the partition board (2) partitions the interior of the cabinet body (1) into a first chamber and a second chamber which are sequentially arranged along a second horizontal direction perpendicular to the first horizontal direction, and the first chamber and the second chamber are closed and independent;
The cabinet body (1) comprises a first side wall and a second side wall which are opposite to each other in the first horizontal direction, a first air inlet communicated with the first cavity and a second air inlet communicated with the second cavity are formed in the first side wall, a first air outlet communicated with the first cavity and a third air outlet communicated with the second cavity are formed in the second side wall, and a second air outlet is formed in the third side wall, adjacent to the second cavity, of the cabinet body (1) in the second horizontal direction;
A phase-change heat pipe heat exchanger (3) and an evaporator (4) positioned between the phase-change heat pipe heat exchanger (3) and the first air outlet are arranged in the first chamber, and one end of the phase-change heat pipe heat exchanger (3) penetrates through the partition plate (2) and stretches into the second chamber; a refrigeration compressor (6), an air-cooled condenser (5) close to a second air outlet and a throttling element (7) are arranged in the second chamber, and the refrigeration compressor (6), the air-cooled condenser (5), the throttling element (7) and the evaporator (4) are sequentially connected to form a refrigerant loop; a first fan (9) is arranged in the first air outlet, a second fan (11) is arranged in the second air outlet, and a third fan (10) is arranged in the third air outlet.
2. The double-cold-source energy-saving heat management device for a cabinet according to claim 1, wherein the phase-change heat pipe heat exchanger (3) comprises one or more first phase-change heat pipe heat exchange assemblies, each first phase-change heat pipe heat exchange assembly comprises a plurality of first micro-channel flat pipes which are sequentially arranged at intervals from top to bottom, each first micro-channel flat pipe is arranged along a second horizontal direction, each first micro-channel flat pipe is filled with a first phase-change medium, and the first phase-change medium changes from a liquid state to a gas state after absorbing heat and changes from the gas state to a liquid state after releasing heat;
When the plurality of first phase-change heat pipe heat exchange assemblies are arranged, the plurality of first phase-change heat pipe heat exchange assemblies are sequentially arranged at intervals along the first horizontal direction.
3. The dual-cold-source energy-saving thermal management device for a cabinet of claim 2, wherein the plurality of first microchannel flat tubes in each first phase-change heat pipe heat exchange assembly are connected end to end in sequence to form a continuous first microchannel flat tube flow channel.
4. A double-cold-source energy-saving thermal management device for a cabinet according to claim 2 or 3, wherein the phase-change heat pipe heat exchanger (3) further comprises one or more second phase-change heat pipe heat exchange components, and the one or more second phase-change heat pipe heat exchange components are arranged on one side of the one or more first phase-change heat pipe heat exchange components close to the first air outlet in a one-to-one correspondence manner;
The second phase-change hot air pipe heat exchange assembly comprises a plurality of second micro-channel flat pipes which are sequentially arranged at intervals from top to bottom, each second micro-channel flat pipe is filled with a second phase-change medium, and the second phase-change medium is changed from a liquid state to a gas state after absorbing heat and is changed from the gas state to a liquid state after releasing heat;
The second micro-channel flat pipes in each second phase-change hot air pipe heat exchange assembly and the first micro-channel flat pipes in the corresponding first phase-change heat exchange assembly are arranged in a staggered manner in the height direction.
5. The dual-cold-source energy-saving thermal management device for a cabinet of claim 4, wherein the plurality of second microchannel flat tubes in each second phase hot air duct heat exchange assembly are connected end to end in sequence to form a continuous second microchannel flat tube flow channel.
6. The dual cold source energy saving thermal management device for a cabinet of claim 4, wherein the second phase change medium and the first phase change medium are the same or different.
7. The double-cold-source energy-saving thermal management device for a cabinet according to claim 1, wherein the air inlet direction of the air-cooled condenser (5) is parallel to the air inlet direction of the second air outlet.
8. The double-cold-source energy-saving thermal management device for a cabinet according to claim 1, wherein a filter screen (14) is installed in the second air inlet.
9. The double-cold-source energy-saving heat management device for a cabinet according to claim 1, wherein a damper shutter (12) is installed at one end of the third air outlet far away from the interior of the cabinet body (1).
10. The double-cold-source energy-saving thermal management device for a cabinet according to claim 1, further comprising a controller (13) and a temperature acquisition mechanism installed in the cabinet and used for acquiring real-time temperature in the cabinet, wherein the temperature acquisition mechanism, the first fan (9), the second fan (11), the third fan (10), the refrigeration compressor (6) and the throttling element (7) are respectively electrically connected with the controller (13).
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| CN202410781357.1A CN118368875B (en) | 2024-06-18 | 2024-06-18 | Double-cold-source energy-saving heat management device for cabinet |
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| CN202410781357.1A CN118368875B (en) | 2024-06-18 | 2024-06-18 | Double-cold-source energy-saving heat management device for cabinet |
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| CN102748824A (en) * | 2012-07-24 | 2012-10-24 | 上海龙创自控系统有限公司 | Heat removal device of air conditioning heat pipe all-in-one machine in communication machine room |
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| CN220871007U (en) * | 2023-09-28 | 2024-04-30 | Tcl空调器(中山)有限公司 | Cabinet air conditioner |
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2024
- 2024-06-18 CN CN202410781357.1A patent/CN118368875B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102748824A (en) * | 2012-07-24 | 2012-10-24 | 上海龙创自控系统有限公司 | Heat removal device of air conditioning heat pipe all-in-one machine in communication machine room |
| CN205678782U (en) * | 2016-06-08 | 2016-11-09 | 苏州浩佳节能科技有限公司 | Energy-saving three-dimensional heat pipe machine cabinet air-conditioner |
| CN207948008U (en) * | 2018-03-23 | 2018-10-09 | 深圳市英维克科技股份有限公司 | A kind of outdoor warehouse separated type independent temperature cabinet |
| JP2019209777A (en) * | 2018-06-01 | 2019-12-12 | 株式会社日章冷凍 | On-vehicle cooling device |
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| CN220871007U (en) * | 2023-09-28 | 2024-04-30 | Tcl空调器(中山)有限公司 | Cabinet air conditioner |
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| CN118368875B (en) | 2024-10-01 |
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