CN113359090A - Accurate distribution device of jumbo size liquid cooling panel flow - Google Patents

Accurate distribution device of jumbo size liquid cooling panel flow Download PDF

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Publication number
CN113359090A
CN113359090A CN202110556680.5A CN202110556680A CN113359090A CN 113359090 A CN113359090 A CN 113359090A CN 202110556680 A CN202110556680 A CN 202110556680A CN 113359090 A CN113359090 A CN 113359090A
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flow
liquid cooling
cooling panel
liquid
size
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CN202110556680.5A
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CN113359090B (en
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战栋栋
钱吉裕
梅源
束瑛
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CETC 14 Research Institute
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CETC 14 Research Institute
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a large-size liquid cooling panel flow accurate distribution device, relates to the technical field of cooling devices, and particularly comprises a large-size liquid cooling panel, wherein a liquid cooling panel water distribution cavity and a liquid cooling panel water collection cavity are respectively arranged on the surface of the large-size liquid cooling panel, and a liquid unit cold plate is arranged on the surface of the large-size liquid cooling panel. According to the invention, by arranging the self-adaptive flow matching device, the plurality of liquid using unit cold plates, the liquid supply ports and the liquid outlet, the problems of high-integration large-size liquid cooling array surface, thousands of flows of accurate distribution and flow self-adaptive distribution are effectively solved, a high-efficiency solution is provided for the flow distribution and temperature uniformity control of the high-power and high-pointing accuracy radar array surface, the accurate matching of the flows of all the liquid using units of the array surface can be realized by adopting the self-adaptive flow matching device with the same size, and the throttling element or the valve does not need to be designed and adjusted independently according to different liquid using units, so that the time and labor are saved.

Description

Accurate distribution device of jumbo size liquid cooling panel flow
Technical Field
The invention relates to a cooling device, in particular to a large-size liquid cooling panel flow accurate distribution device.
Background
With the continuous improvement of detection power and detection precision requirements, the integration level and the power density of the active phased array radar are higher and higher. A power supply, a transmitting component, a processing module and the like are integrated on a large active phased array radar array surface, and liquid using units are thousands of units. On the one hand, in order to realize high integration of the array, the structure function integrated design is adopted, the cooling liquid distribution pipeline and the structure integrated design are adopted, the cold plate is connected with the back plate (large panel) through a blind-plugging water connector, and the array surface is free of hose connection and valves. On the other hand, the requirement on the temperature uniformity of the radio frequency unit on the array surface is high, the requirement on the temperature uniformity of the array surface is controlled within +/-3 ℃ in certain wave bands, and extremely high requirements are provided for the distribution accuracy of the cooling liquid. In the past, radars with lower integration level and less liquid using units generally adopt the same-path design of cooling liquid and the adjustment of a local valve or a throttling ring to realize accurate flow distribution. However, for a high-integration-level integrated radar array surface, a large-size liquid cooling panel is of a highly integrated structure, a cooling runner is directly machined and formed inside a large panel, the structure is compact, a static pressure cavity is small in size, and a valve cannot be arranged; meanwhile, the distribution points are thousands of, the workload of flow regulation through a throttling ring and the like is huge, and accurate flow distribution is difficult to realize. Uneven flow distribution can cause the temperature of part of the radio frequency components to rise, the temperature uniformity of the array surface cannot meet the requirement, and if the distribution is seriously uneven, serious faults such as liquid shortage, over-temperature and even overheating and burning of individual radio frequency components can be caused.
In the existing flow distribution technology, CN110219623A discloses a branch pipeline flow distribution device and a metering method thereof, which implement branch pipeline flow distribution by monitoring pressure and adjusting a restrictor. CN209756792U a coolant flow distributor and electric automobile, proposes water valve actuating mechanism control flow distribution. CN205978954U a reducing pipe for flow distributor, can freely adjust the internal diameter of reducing pipe according to actual conditions requirement, can satisfy the high accuracy internal diameter regulation demand. However, the flow distributors with different inner diameters need to be arranged at different positions, and the above patent needs material throttling elements and the like for adjustment, is relatively complex and is not suitable for flow distribution of large-size liquid cooling panels.
Disclosure of Invention
The invention aims to provide a large-size liquid cooling panel flow accurate distribution device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an accurate distributor of jumbo size liquid cooling panel flow, includes jumbo size liquid cooling panel, the surface of jumbo size liquid cooling panel is provided with liquid cooling panel water diversion chamber and liquid cooling panel chamber of catchmenting respectively, the surface of jumbo size liquid cooling panel is provided with liquid unit cold drawing, one side that liquid cooling panel water diversion chamber is close to with liquid unit cold drawing is provided with coolant liquid supply port, one side that liquid cooling panel chamber of catchmenting is close to liquid unit cold drawing is provided with liquid unit cold drawing liquid outlet, the other end of this coolant liquid supply port is provided with self-adaptation flow matching device, the coolant liquid supply port passes through the terminal surface fixed connection of self-adaptation flow matching device and liquid unit cold drawing.
As a further scheme of the invention: the adaptive flow matching device is provided with an air bag structure adaptive flow matching device or a spring structure adaptive flow matching device, the air bag structure adaptive flow matching device comprises an annular air bag, an orifice plate structural member, a central circulation hole and peripheral circulation holes, the central circulation hole and the peripheral circulation holes are formed in the surface of the orifice plate structural member, the central circulation hole is arranged on the outer side of the peripheral circulation holes, and the annular air bag is arranged on the surface of the orifice plate structural member in a protruding position.
As a further scheme of the invention: the spring structure self-adaptive flow matching device comprises a spring, a circulation pipe, a sleeve, a central circulation hole and a side wall circulation hole, wherein the central circulation hole and the side wall circulation hole are formed in two end faces and a side wall of the circulation pipe, the sleeve is movably sleeved on the surface of the circulation pipe, the spring is movably connected inside the sleeve, and one end of the sleeve is movably connected with one end of the circulation pipe.
As a further scheme of the invention: the sizes of the circulation holes on the periphery are matched with the size of a liquid supply port of the water distribution cavity of the liquid cooling panel.
As a further scheme of the invention: and the other side of the large-size liquid cooling panel is provided with four contraction fixing devices.
As a still further scheme of the invention: the contraction fixing device comprises a containing groove and a rotating fixing plate, the containing groove is formed in the back face of the large-size liquid cooling panel, the rotating fixing plate is rotatably connected inside the containing groove, and a fixing hole for fixing is formed in the other end face of the rotating fixing plate.
Compared with the prior art, the invention has the beneficial effects that:
by arranging the self-adaptive flow matching device, the liquid using units, the cold plates, the liquid supply ports and the liquid outlets, the problems of high-integration large-size liquid cooling array surface, thousands of flows of accurate distribution and flow self-adaptive distribution are effectively solved, and a high-efficiency solution is provided for the flow distribution and temperature uniformity control of the high-power high-pointing accuracy radar array surface.
The adaptive flow matching device has universality, accurate matching of the flow of all liquid units on the array surface can be realized by adopting the adaptive flow matching device with the same size, and a throttling element or a valve does not need to be independently designed and adjusted according to different liquid units, so that time and labor are saved.
Drawings
Fig. 1 is a schematic view of an overall structure of a large-sized liquid cooling panel flow accurate distribution device.
Fig. 2 is a schematic diagram of an installation of an adaptive flow matching device of a large-sized liquid cooling panel flow accurate distribution device.
Fig. 3 is a free state structure diagram of an adaptive flow matching device based on an airbag structure in a large-size liquid cooling panel flow accurate distribution device.
Fig. 4 is a schematic view of a compressed state structure of an adaptive flow matching device based on an airbag structure in a large-size liquid cooling panel flow accurate distribution device.
Fig. 5 is a schematic view of the installation of a spring structure based adaptive flow matching device in a large-size liquid cooling panel flow accurate distribution device.
Fig. 6 is a free state structure diagram of a spring structure based adaptive flow matching device in a large-size liquid cooling panel flow accurate distribution device.
Fig. 7 is a schematic view of a compressed state structure of a spring structure-based adaptive flow matching device in a large-size liquid cooling panel flow accurate distribution device.
FIG. 8 is a schematic view of a shrinking fixture in a large-sized liquid cooling panel flow rate precise distribution device.
As shown in the figure: 1. a liquid cooling panel; 2. a self-adaptive flow matching device; 3. the liquid cooling panel divides the water cavity; 4. a liquid supply port; 5. cooling the plate with a liquid unit; 6. a liquid outlet; 7. a liquid cooling panel water collecting cavity; 8. an annular air bag; 9. a perforated plate structure; 10. a central flow aperture; 11. a flow-through hole; 12. a spring; 13. a sleeve; 14. a central flow aperture; 15. a sidewall flow aperture; 16. a sidewall flow aperture; 17. an adaptive flow matching device based on an air bag structure; 18. the self-adaptive flow matching device is based on a spring structure; 19. a receiving groove; 20. the fixed plate is rotated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 8, in an embodiment of the present invention, an apparatus for accurately distributing flow of a large-sized liquid cooling panel includes the following embodiments:
example one
A large-size liquid cooling panel flow accurate distribution device is structurally shown in figure 1 and comprises a large-size liquid cooling panel 1, a liquid unit cold plate 5 is arranged on the surface of the large-size liquid cooling panel 1, a liquid cooling panel water distribution cavity 3 is provided with a cooling liquid supply port 4 at one side close to the liquid unit cold plate 5, the other end of the cooling liquid supply port 4 is provided with a self-adaptive flow matching device 2, the self-adaptive flow matching device 2 is arranged at the position of the cooling liquid supply port 4 of the liquid cooling panel water distribution cavity 3 (at the connecting position with the liquid unit cold plate 5), cooling liquid flows through the liquid cooling panel water distribution cavity 3 and the self-adaptive flow matching device 2 to realize flow accurate matching and then flows into the liquid unit cold plate 5, after heat exchange with electronic equipment, flows into a liquid cooling panel water collection cavity 7 from the liquid unit liquid outlet 6, and the liquid unit cold plates 5 on the liquid cooling panel are generally designed by parallel liquid supply, the cooling liquid is parallelly connected to each liquid unit cold plate 5.
The adaptive flow matching device 2 is an adaptive flow matching device 17 based on an air bag structure, the adaptive flow matching device 17 based on the air bag structure comprises an annular air bag 8, a pore plate structural part 9, a central circulation hole 10 and a circulation hole 11, and nitrogen or dry air is pre-filled in the annular air bag 8 and used for supporting or contracting the annular air bag 8; install on orifice plate structure 9, the central opening 10 of orifice plate structure 9 with set up opening 11 all around and be used for the liquid circulation, annular gasbag 8 pre-charge pressure, the size of central opening 10 and opening 11 all around need be according to liquid cooling panel divide the chamber to supply liquid mouth 4 size, supply back the liquid maximum pressure difference scope, with liquid unit cold plate 5 flow demand, resistance characteristic etc. design, through rational design, adopt a self-adaptation flow matching device 2 can realize that whole battle array face uses the accurate matching of flow of liquid unit.
Based on 17 flow regulation principles of the air bag structure adaptive flow matching device: when the flow distribution is different, the pressure difference at two sides of the cold plate 5 of the liquid unit is changed, if the flow exceeds the designed value, the inlet pressure is increased, the pressure compresses the annular air bag 8, the annular air bag 8 shields the area of the peripheral circulation holes 11 on the orifice plate structural part 9, when the inlet pressure is further increased, the annular air bag 8 is further compressed, and finally the peripheral through holes 11 on the orifice plate structural component 9 are completely shielded, the cooling liquid can only flow through the central through hole 10 of the orifice plate structural component 9, through reducing flow area, improve local resistance, reduce the flow of cold drawing of flowing through, realize flow self-adaptation and match, if the flow is less than the design value, entry pressure reduces, and annular gasbag 8 relaxs, reduces sheltering from to circulation hole 11 all around on the orifice plate structure 9, and increase flow area reduces local resistance to increase the flow, realize flow self-adaptation and match.
The other side of jumbo size liquid cooling panel 1 is provided with the shrink fixing device, this shrink fixing device's quantity is four, the shrink fixing device is including accomodating groove 19 and rotation fixed plate 20, accomodating groove 19 is seted up at jumbo size liquid cooling panel 1's back, rotation fixed plate 20 rotates and connects in the inside of accomodating groove 19, the fixed orifices that is used for fixing is seted up to rotation fixed plate 20's another terminal surface, during the installation, at first, need rotate rotation fixed plate 20 from the inside of accomodating groove 19, then pass the fixed orifices with the screw, make it fix in required position.
Example 2
A large-size liquid cooling panel flow accurate distribution device is structurally shown in figure 1 and comprises a large-size liquid cooling panel 1, a liquid unit cold plate 5 is arranged on the surface of the large-size liquid cooling panel 1, a liquid cooling panel water distribution cavity 3 is provided with a cooling liquid supply port 4 at one side close to the liquid unit cold plate 5, the other end of the cooling liquid supply port 4 is provided with a self-adaptive flow matching device 2, the self-adaptive flow matching device 2 is arranged at the position of the cooling liquid supply port 4 of the liquid cooling panel water distribution cavity 3 (at the connecting position with the liquid unit cold plate 5), cooling liquid flows through the liquid cooling panel water distribution cavity 3 and the self-adaptive flow matching device 2 to realize flow accurate matching and then flows into the liquid unit cold plate 5, after heat exchange with electronic equipment, flows into a liquid cooling panel water collection cavity 7 from the liquid unit liquid outlet 6, and the liquid unit cold plates 5 on the liquid cooling panel are generally designed by parallel liquid supply, the cooling liquid is parallelly connected to each liquid unit cold plate 5.
The self-adaptive flow matching device 2 is a self-adaptive flow matching device 18 based on a spring structure and comprises a spring 12, a circulation pipe 13 and a sleeve 14, wherein two end faces and side walls of the circulation pipe 13 are provided with a central circulation hole 15 and a side wall circulation hole 16, the circulation pipe 13 can move in the sleeve 14, the circulation area of cooling liquid is changed through movement, and the self-adaptive flow matching device 18 based on the spring structure adjusts the principle: when the flow distribution is different, the pressure difference between the two sides of the cold plate 5 of the liquid unit changes, if the flow exceeds the designed value, the inlet pressure is increased, the pressure compresses the spring 12, the circulating pipe 13 moves towards the interior of the sleeve 14, part of the side wall circulating holes 16 on the circulating pipe 13 are shielded by the sleeve, when the inlet pressure is further increased, the spring 12 is further compressed, the circulating pipe 13 completely enters the sleeve 14, finally the side wall circulating holes 16 are completely shielded, the cooling liquid can only flow through the central circulating hole 15 of the circulating pipe 13, the local resistance is improved by reducing the circulating area, the flow passing through the cold plate 5 of the liquid unit is reduced, the self-adaptive matching of the flow is realized, if the flow is lower than the designed value, the inlet pressure is reduced, the spring 12 is relaxed, the circulating pipe 13 moves towards the outer side of the sleeve 14, the shielding of the side wall circulating holes 16 on the circulating pipe 13 by the sleeve 14 is reduced, the circulating area is increased, and the local resistance is reduced, thereby increasing the flow and realizing the adaptive matching of the flow.
The other side of jumbo size liquid cooling panel 1 is provided with the shrink fixing device, this shrink fixing device's quantity is four, the shrink fixing device is including accomodating groove 19 and rotation fixed plate 20, accomodating groove 19 is seted up at jumbo size liquid cooling panel 1's back, rotation fixed plate 20 rotates and connects in the inside of accomodating groove 19, the fixed orifices that is used for fixing is seted up to rotation fixed plate 20's another terminal surface, during the installation, at first, need rotate rotation fixed plate 20 from the inside of accomodating groove 19, then pass the fixed orifices with the screw, make it fix in required position.
The working principle of the invention is as follows:
when the device is used, cooling liquid is introduced into the liquid cooling panel water distribution cavity 3, then the cooling liquid enters each cooling liquid supply port 4 in parallel, then the cooling liquid reaches a plurality of cooling liquid supply ports 15 through the adaptive flow matching device 2, after the cooling liquid passes through the cooling liquid outlet 6 of the liquid unit, the cooling liquid flows into the liquid cooling panel water collection cavity 7 through the cooling liquid outlet 6 of the liquid unit, the problems of high-integration large-size liquid cooling array surface, thousands of accurate flow distribution and flow adaptive distribution are effectively solved, and an efficient solution is provided for high-power and high-pointing-precision radar array surface flow distribution and temperature uniformity control.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides an accurate distributor of jumbo size liquid cooling panel flow, including jumbo size liquid cooling panel (1), a serial communication port, the surface of jumbo size liquid cooling panel (1) is provided with liquid cooling panel water distribution chamber (3) and liquid cooling panel water collection chamber (7) respectively, the surface of jumbo size liquid cooling panel (1) is provided with liquid unit cold drawing (5), one side that liquid cooling panel water distribution chamber 3 is close to with liquid unit cold drawing (5) is provided with coolant liquid supply mouth (4), one side that liquid cooling panel water collection chamber (7) are close to liquid unit cold drawing (5) is provided with liquid unit cold drawing liquid outlet (6), the other end of this coolant liquid supply mouth (4) is provided with self-adaptation flow matching device (2), coolant liquid supply mouth (4) is through the terminal surface fixed connection of self-adaptation flow matching device (2) and liquid unit cold drawing (5).
2. The accurate flow distribution device for the large-size liquid cooling panel according to claim 1, wherein the adaptive flow matching device (2) has two structures of an air bag structure adaptive flow matching device (17) and a spring structure adaptive flow matching device (18), the air bag structure adaptive flow matching device (17) comprises an annular air bag (8), an orifice plate structural member (9), a central flow hole (10) and peripheral flow holes (11), the central flow hole (10) and the peripheral flow holes (11) are formed in the surface of the orifice plate structural member (9), the central flow hole (10) is formed outside the peripheral flow holes (11), and the annular air bag (8) is formed in the surface of the orifice plate structural member (9) in a protruding position.
3. The accurate flow distribution device for the large-size liquid cooling panel as claimed in claim 2, wherein the adaptive flow matching device (18) with the spring structure comprises a spring (12), a flow pipe (13), a sleeve (14), a central flow hole (15) and a side wall flow hole (16), the central flow hole (15) and the side wall flow hole (16) are arranged on two end faces and a side wall of the flow pipe (13), the sleeve (14) is movably sleeved on the surface of the flow pipe (13), the spring (12) is movably connected inside the sleeve (14), and one end of the sleeve (14) is movably connected with one end of the flow pipe (13).
4. The device for accurately distributing the flow of the large-size liquid cooling panel as claimed in claim 2, wherein the size of the peripheral circulation holes (11) is matched with the size of the liquid supply port (4) of the water diversion cavity of the liquid cooling panel.
5. The large-sized liquid cooling panel flow accurate distribution device according to claim 1, wherein the other surface of the large-sized liquid cooling panel (1) is provided with four shrinkage fixing devices.
6. The accurate flow distribution device for large-size liquid cooling panels as claimed in claim 1, wherein the shrinking and fixing device comprises a storage groove (19) and a rotating and fixing plate (20), the storage groove (19) is formed on the back surface of the large-size liquid cooling panel 1, the rotating and fixing plate (20) is rotatably connected inside the storage groove (19), and the other end surface of the rotating and fixing plate (20) is provided with a fixing hole for fixing.
CN202110556680.5A 2021-05-21 2021-05-21 Accurate flow distribution device for large-size liquid cooling panel Active CN113359090B (en)

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CN107454804A (en) * 2017-08-25 2017-12-08 北京无线电测量研究所 A kind of liquid cooling apparatus based on the design of high hot-fluid TR components uniform temperature
CN109786924A (en) * 2019-03-05 2019-05-21 成都雷电微力科技有限公司 A kind of heat dissipation T/R module certainly and the phased array antenna using the T/R module
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CN112670696A (en) * 2020-12-25 2021-04-16 北京华航无线电测量研究所 Liquid cooling plate of liquid cooling phased array antenna and cooling method thereof

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