CN114126346A - Novel efficient balanced heat dissipation system - Google Patents

Novel efficient balanced heat dissipation system Download PDF

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Publication number
CN114126346A
CN114126346A CN202111229348.4A CN202111229348A CN114126346A CN 114126346 A CN114126346 A CN 114126346A CN 202111229348 A CN202111229348 A CN 202111229348A CN 114126346 A CN114126346 A CN 114126346A
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China
Prior art keywords
subsystem
heat dissipation
hood
fan
air channel
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CN202111229348.4A
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Chinese (zh)
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方雄灿
车宏
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Zhejiang Dali Technology Co ltd
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Zhejiang Dali Technology Co ltd
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Priority to CN202111229348.4A priority Critical patent/CN114126346A/en
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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
    • 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

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Telescopes (AREA)

Abstract

The utility model provides a novel high-efficient balanced cooling system, including the hood subsystem, the refrigeration subsystem, the radiator fan module, balanced heat dissipation wind channel subsystem, adopt the parallelly connected binary channels air inlet wind channel system of double fan, wind channel trompil through special design carries each detector and light window department with cold wind from different position, can high-efficient accurate heat dissipation, and the reliability through redundant design has improved cooling system, the fan adopts PID speed governing strategy or other high accuracy fan speed governing tactics speed governing respectively speed governing, the wind channel that combines special design makes near primary and secondary mirror module atmospheric pressure even, be favorable to the detector formation of image, be favorable to the even heat dissipation of different detectors simultaneously.

Description

Novel efficient balanced heat dissipation system
Technical Field
The invention relates to a novel efficient balanced heat dissipation system, and belongs to the technical field of airborne photoelectric products.
Background
With the increasing functions and the increasing integration of the photoelectric detector, the self heat productivity is increased, but the specification and the temperature of the self are unchanged. Accordingly, the head has an increasing demand for heat dissipation systems.
The head of the nacelle is generally integrated with three photoelectric detectors, namely infrared detectors, television detectors and laser detectors, and the number of the detectors is different. These detectors are themselves sensitive to temperature, particularly infrared detectors. Therefore, heat dissipation is required for each detector, which puts higher demands on the design of the heat dissipation air duct.
The optical window is a critical component of the imaging system and can have a severe impact on the imaging if the temperature is too high. Due to the fact that the temperature of the optical window is high due to pneumatic heating in the flight process, the optical window needs to be designed to dissipate heat.
The heat dissipation of the head of a common pod mainly adopts an air cooling mode, and the high-pressure fan directly blows to the detector and the primary and secondary mirror modules, so that the pressure difference near the primary and secondary mirror modules is large, and the primary and secondary mirror modules are unevenly stressed. The primary and secondary mirror modules are stressed unevenly for a long time, and imaging of the detector is influenced. The single fan is adopted for heat dissipation, so that the flow field trend of the detector and the optical window is not easy to control, and further the heat dissipation efficiency is low.
Therefore, it is very important to design a novel efficient balanced heat dissipation system to meet the situation that multiple detectors and optical windows all have high-precision heat dissipation requirements.
Disclosure of Invention
The technical problem solved by the invention is as follows: aiming at the problems that in the prior art, the primary and secondary mirror modules are stressed unevenly for a long time and imaging of a photoelectric detector is influenced due to the common air cooling mode for cooling the head of the pod, a novel efficient balanced cooling system is provided.
The technical scheme for solving the technical problems is as follows:
the utility model provides a novel high-efficient balanced cooling system, includes hood subsystem, refrigeration subsystem, radiator fan module, balanced heat dissipation wind channel subsystem, wherein:
the inside photoelectric detector equipment that is provided with of hood subsystem, continuously generate heat under operating condition, the refrigeration subsystem is used for refrigerating for the hood subsystem, be provided with the light window on the hood subsystem, the radiator fan module provides air flow power for the balanced cooling system that hood subsystem, refrigeration subsystem, radiator fan module, balanced radiating air duct subsystem are constituteed to carry out the fan speed governing according to the inside temperature-sensing feedback of hood subsystem in order to satisfy photoelectric detector equipment heat dissipation demand, balanced radiating air duct subsystem provides the radiating air runner for refrigeration subsystem, radiator fan module, and supplementary hood subsystem dispels the heat.
The hood subsystem is provided with 5 optical windows, including head optical window, top optical window, bottom optical window, preceding optical window, side direction optical window, blows off cold wind through the refrigeration subsystem and dispels the heat.
The cooling fan module comprises a fan and a fan controller, the fan provides air flow power for the refrigeration subsystem, the fan controller is used for controlling the rotating speed of the fan, a temperature feedback device is arranged in the hood subsystem, and the fan controller adjusts the rotating speed of the fan in real time according to a temperature signal in the hood subsystem sent by the temperature feedback device so as to meet the cooling requirement.
The number of the fans and the number of the fan controllers are 2, the fans are automatically regulated under the control of the fan controllers, and the automatic speed regulation strategy adopts PID (proportion integration differentiation) speed regulation or linear speed regulation.
The balanced heat dissipation air channel subsystem comprises a refrigeration subsystem air outlet pipeline, a head main frame lateral air channel, a side plate forward air channel and a hood side plate lateral air channel, the refrigeration subsystem air outlet pipeline is connected with the refrigeration subsystem and is connected with each fan respectively, the head main frame lateral air channel provides a heat dissipation air channel for the hood subsystem, the head light window, the top light window, the bottom light window and the photoelectric detector device, the side plate forward air channel provides a heat dissipation air channel for the forward light window and the photoelectric detector device, and the hood side plate lateral air channel provides a heat dissipation air channel for the lateral light window.
The openings of the side plate front air duct and the hood side plate lateral air duct are different in size.
The two fans are respectively installed in different branches of an air outlet pipeline of the refrigeration subsystem.
The balanced heat dissipation system also comprises a primary mirror module and a secondary mirror module, when the internal environment temperature of the head cover system or the temperature of a photoelectric detector component or the temperature of an optical window is higher than a corresponding temperature threshold value, the refrigeration subsystem starts to work, the fan passes through an air outlet pipeline of the refrigeration subsystem of the balanced heat dissipation air channel subsystem, a lateral air channel of the head main frame, a lateral forward air channel of a lateral plate and a lateral air channel of a hood lateral plate, cold air is extracted from the refrigeration subsystem, the cold air is uniformly distributed in a flow field around the primary mirror module through the lateral air channel of the head main frame, and the cold air is collected after passing through the lateral air channel of the hood lateral plate, flows to the lateral optical window and the photoelectric detector to absorb heat, and flows back to the refrigeration subsystem through an air channel backflow hole to complete heat dissipation circulation.
The side air duct of the main head frame is provided with two branches, and cold air blown out by the fan rotates in the two branches and then is blown to the primary mirror module and the secondary mirror module.
The lateral air duct of the hood side plate is provided with double branches, and the branches are asymmetrically arranged and are communicated to the air duct return holes.
Compared with the prior art, the invention has the advantages that:
according to the novel efficient balanced heat dissipation system, the double-channel air inlet duct system with the double fans connected in parallel is adopted, cold air is conveyed to each detector and each optical window from different directions through the specially designed duct openings, efficient and accurate heat dissipation can be achieved, the reliability of the heat dissipation system is improved through the redundancy design, the fans are respectively regulated in speed by adopting a PID speed regulation strategy or other high-precision fan speed regulation strategies, the air pressure near the primary and secondary mirror modules is uniform by combining the specially designed ducts, imaging of the detectors is facilitated, and uniform heat dissipation of different detectors is facilitated.
Drawings
FIG. 1 is a general assembly view of the embodiment provided by the present invention;
FIG. 2 is a view of an embodiment of an optical window provided by the present invention;
FIG. 3 is a view of an embodiment air duct subsystem provided by the present invention;
FIG. 4 is a left side view of an embodiment of the present invention;
FIG. 5 is a right side view of an embodiment provided by the invention;
FIG. 6 is a view of an embodiment of a hood duct provided by the present invention;
FIG. 7 is a view of an embodiment of a return air duct provided by the present invention;
Detailed Description
The utility model provides a novel high-efficient balanced cooling system, adopt the parallelly connected binary channels air inlet duct system of double fan, each detector and light window department are carried with cold wind from different position to wind channel trompil through special design, can high-efficient accurate heat dissipation, the redundancy design who utilizes the double fan has improved cooling system's reliability, the wind channel that combines special design makes near primary and secondary mirror module group atmospheric pressure even, be favorable to the detector formation of image, be favorable to the even heat dissipation of different detectors simultaneously, mainly include the hood subsystem, the refrigeration subsystem, the radiator fan module, balanced radiating duct subsystem, wherein:
the inside photoelectric detector equipment that is provided with of hood subsystem lasts the themogenesis under operating condition, the refrigeration subsystem is used for refrigerating for the hood subsystem, be provided with the light window on the hood subsystem, the radiator fan module provides air flow power for the balanced cooling system that hood subsystem, refrigeration subsystem, radiator fan module, balanced radiating air duct subsystem are constituteed to carry out the fan speed governing according to the inside temperature-sensitive feedback of hood subsystem in order to satisfy photoelectric detector equipment heat dissipation demand, balanced radiating air duct subsystem provides the radiating air runner for refrigeration subsystem, radiator fan module, and supplementary hood subsystem dispels the heat.
Specifically, 5 optical windows are arranged on the hood subsystem, and comprise a head optical window, a top optical window, a bottom optical window, a forward optical window and a lateral optical window, and cold air is blown out by the refrigeration subsystem to dissipate heat;
the cooling fan module comprises a fan and a fan controller, the fan provides air flow power for the refrigeration subsystem, the fan controller is used for controlling the rotating speed of the fan, a temperature feedback device is arranged in the hood subsystem, and the fan controller adjusts the rotating speed of the fan in real time according to a temperature signal in the hood subsystem sent by the temperature feedback device so as to meet the cooling requirement;
the number of the fans and the number of the fan controllers are 2, the fans are automatically regulated under the control of the fan controllers, and the automatic speed regulation strategy adopts PID (proportion integration differentiation) speed regulation or linear speed regulation;
the balanced heat dissipation air channel subsystem comprises a refrigeration subsystem air outlet pipeline, a head main frame lateral air channel, a lateral plate forward air channel and a hood lateral air channel, the refrigeration subsystem air outlet pipeline is connected with the refrigeration subsystem and is connected with each fan respectively, the head main frame lateral air channel provides a heat dissipation air channel for the hood subsystem, the head light window, the top light window, the bottom light window and the photoelectric detector device, the lateral plate forward air channel provides a heat dissipation air channel for the forward light window and the photoelectric detector device, and the hood lateral plate lateral air channel provides a heat dissipation air channel for the lateral light window.
Preferably, the openings of the side plate forward air duct and the hood side plate lateral air duct are different in size, and the two fans are respectively installed in different branches of the air outlet pipeline of the refrigeration subsystem.
The balanced heat dissipation system also comprises a primary mirror module and a secondary mirror module, when the internal environment temperature of the head cover system or the temperature of a photoelectric detector component or the temperature of an optical window is higher than a corresponding temperature threshold value, the refrigeration subsystem starts to work, the fan passes through an air outlet pipeline of the refrigeration subsystem of the balanced heat dissipation air channel subsystem, a lateral air channel of the head main frame, a lateral forward air channel of a lateral plate and a lateral air channel of a hood lateral plate, cold air is extracted from the refrigeration subsystem, the cold air is uniformly distributed in a flow field around the primary mirror module through the lateral air channel of the head main frame, and the cold air is collected after passing through the lateral air channel of the hood lateral plate, flows to the lateral optical window and the photoelectric detector to absorb heat, and flows back to the refrigeration subsystem through an air channel backflow hole to complete heat dissipation circulation.
Furthermore, the lateral air channel of the head main frame is provided with double branches, cold air blown out by the fan is blown to the primary mirror module and the secondary mirror module after rotating in the double branches, the lateral air channel of the hood side plate is provided with the double branches, and the branches are asymmetrically arranged and are communicated to the air channel backflow hole.
The following is further illustrated with reference to specific examples:
in the present embodiment, as shown in fig. 1 to 7, the novel efficient balanced heat dissipation system includes a head cover subsystem 1, a refrigeration subsystem 2, a heat dissipation fan module, and a balanced heat dissipation air channel subsystem, where the refrigeration subsystem 2 employs phase-change heat exchange, the refrigeration subsystem 2 includes an evaporator, a heat exchanger, a refrigerant, a compressor, and other related refrigeration devices, 5 optical windows 3 are installed on the head cover subsystem 1, the optical windows 3 include 5 optical windows in total, which are respectively a head optical window 3-1, a top optical window 3-2, a bottom optical window 3-3, a forward optical window 3-4, and a lateral optical window 3-5, and the balanced heat dissipation air channel subsystem includes a refrigeration subsystem air outlet duct 4, a head main frame lateral air channel 5, lateral side plate forward air channels 7 and 8, and a head cover side plate lateral air channel 9;
the cooling fan module comprises 2 cooling fans and a controller, and the two fans are respectively installed in two branch pipelines of an air outlet pipeline of the refrigeration subsystem.
When the internal environment temperature T of the head cover0Or the temperature T of each detector, optical window and other key componentsnHigher than a certain threshold T corresponding to each1At that time, the refrigeration subsystem begins to operate. Two radiator fans draw cold air from the inside of the refrigeration subsystem, the air channels 7 and 8 are forwards arranged through the lateral air channel 5 of the head main frame of the balanced radiating air channel subsystem and the lateral air channel 9 of the side plates, the left and right openings of the lateral air channel 5 of the head main frame are asymmetric, the cold air has certain rotation through the air channels on the two sides of the main frame, and the cold air does not directly blow to the primary mirror module 6 after passing through the air channels, so that the flow fields around the primary mirror and the secondary mirror are uniformly distributed.
The lateral air channel of the side plate of the hood is asymmetric left and right, so that the air discharged from the left side and the right side flows to the rear optical window and the detector after being collected in the middle, finally flows into the refrigeration subsystem through the air channel backflow hole, and is changed into cold air after being subjected to heat exchange with a refrigerant in the evaporator, and a cycle is completed. When the detector or the optical window is unevenly cooled, the fan speed regulation strategy is started to respectively control the rotating speeds of the two fans, so that the air quantity flowing out of the air channels on the two sides is controlled, and accurate and efficient heat dissipation is realized.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Those skilled in the art will appreciate that the details of the invention not described in detail in this specification are well within the skill of those in the art.

Claims (10)

1. The utility model provides a novel high-efficient balanced cooling system which characterized in that:
including hood subsystem, refrigeration subsystem, radiator fan module, balanced heat dissipation wind channel subsystem, wherein:
the inside photoelectric detector equipment that is provided with of hood subsystem, continuously generate heat under operating condition, the refrigeration subsystem is used for refrigerating for the hood subsystem, be provided with the light window on the hood subsystem, the radiator fan module provides air flow power for the balanced cooling system that hood subsystem, refrigeration subsystem, radiator fan module, balanced radiating air duct subsystem are constituteed to carry out the fan speed governing according to the inside temperature-sensing feedback of hood subsystem in order to satisfy photoelectric detector equipment heat dissipation demand, balanced radiating air duct subsystem provides the radiating air runner for refrigeration subsystem, radiator fan module, and supplementary hood subsystem dispels the heat.
2. The new and effective balanced heat dissipation system of claim 1, further comprising:
the hood subsystem is provided with 5 optical windows, including head optical window, top optical window, bottom optical window, preceding optical window, side direction optical window, blows off cold wind through the refrigeration subsystem and dispels the heat.
3. The new and effective balanced heat dissipation system of claim 1, further comprising:
the cooling fan module comprises a fan and a fan controller, the fan provides air flow power for the refrigeration subsystem, the fan controller is used for controlling the rotating speed of the fan, a temperature feedback device is arranged in the hood subsystem, and the fan controller adjusts the rotating speed of the fan in real time according to a temperature signal in the hood subsystem sent by the temperature feedback device so as to meet the cooling requirement.
4. The new and effective balanced heat dissipation system of claim 3, wherein:
the number of the fans and the number of the fan controllers are 2, the fans are automatically regulated under the control of the fan controllers, and the automatic speed regulation strategy adopts PID (proportion integration differentiation) speed regulation or linear speed regulation.
5. The novel efficient balanced heat dissipation system of claim 4, wherein:
the balanced heat dissipation air channel subsystem comprises a refrigeration subsystem air outlet pipeline, a head main frame lateral air channel, a side plate forward air channel and a hood side plate lateral air channel, the refrigeration subsystem air outlet pipeline is connected with the refrigeration subsystem and is connected with each fan respectively, the head main frame lateral air channel provides a heat dissipation air channel for the hood subsystem, the head light window, the top light window, the bottom light window and the photoelectric detector device, the side plate forward air channel provides a heat dissipation air channel for the forward light window and the photoelectric detector device, and the hood side plate lateral air channel provides a heat dissipation air channel for the lateral light window.
6. The new and effective balanced heat dissipation system of claim 5, wherein:
the openings of the side plate front air duct and the hood side plate lateral air duct are different in size.
7. The new and effective balanced heat dissipation system of claim 5, wherein:
the two fans are respectively installed in different branches of an air outlet pipeline of the refrigeration subsystem.
8. The new and effective balanced heat dissipation system of claim 3, wherein:
the balanced heat dissipation system also comprises a primary mirror module and a secondary mirror module, when the internal environment temperature of the head cover system or the temperature of a photoelectric detector component or the temperature of an optical window is higher than a corresponding temperature threshold value, the refrigeration subsystem starts to work, the fan passes through an air outlet pipeline of the refrigeration subsystem of the balanced heat dissipation air channel subsystem, a lateral air channel of the head main frame, a lateral forward air channel of a lateral plate and a lateral air channel of a hood lateral plate, cold air is extracted from the refrigeration subsystem, the cold air is uniformly distributed in a flow field around the primary mirror module through the lateral air channel of the head main frame, and the cold air is collected after passing through the lateral air channel of the hood lateral plate, flows to the lateral optical window and the photoelectric detector to absorb heat, and flows back to the refrigeration subsystem through an air channel backflow hole to complete heat dissipation circulation.
9. The new and effective balanced heat dissipation system of claim 8, wherein:
the side air duct of the main head frame is provided with two branches, and cold air blown out by the fan rotates in the two branches and then is blown to the primary mirror module and the secondary mirror module.
10. The new and effective balanced heat dissipation system of claim 9, wherein:
the lateral air duct of the hood side plate is provided with double branches, and the branches are asymmetrically arranged and are communicated to the air duct return holes.
CN202111229348.4A 2021-10-21 2021-10-21 Novel efficient balanced heat dissipation system Pending CN114126346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111229348.4A CN114126346A (en) 2021-10-21 2021-10-21 Novel efficient balanced heat dissipation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111229348.4A CN114126346A (en) 2021-10-21 2021-10-21 Novel efficient balanced heat dissipation system

Publications (1)

Publication Number Publication Date
CN114126346A true CN114126346A (en) 2022-03-01

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Application Number Title Priority Date Filing Date
CN202111229348.4A Pending CN114126346A (en) 2021-10-21 2021-10-21 Novel efficient balanced heat dissipation system

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CN (1) CN114126346A (en)

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