CN112635953A - Liquid cooling system and liquid cooling method thereof - Google Patents

Abstract

The invention relates to a liquid cooling system and a liquid cooling method thereof, belongs to the technical field of phased array antennas, and solves the problem that the antenna performance is influenced by the temperature rise of an antenna array surface due to the large heat flux density of the antenna array surface of the phased array antenna in the prior art. The liquid cooling system of the present invention includes: the intelligent micro-controller, the liquid cold source, the liquid inlet pipeline, the liquid return pipeline and the liquid cooling plate; the intelligent microcontroller is used for controlling the working state of the liquid cooling system; the liquid cooling source is used for providing cooling liquid required by cooling heat exchange; the liquid inlet pipeline is used for injecting cooling liquid into the liquid cooling plate; the liquid return pipeline is used for recovering cooling liquid after heat exchange in the liquid cooling plate; the liquid cooling plate is in contact with the phased array antenna, so that cooling and heat dissipation of the phased array antenna are achieved.

Description

Liquid cooling system and liquid cooling method thereof

Technical Field

The invention relates to the technical field of phased array antennas, in particular to a liquid cooling system and a liquid cooling method thereof.

Background

The application of the active phased array antenna is more and more extensive in military and civil use, and hundreds of T/R components are distributed on one antenna array surface. In the environment of an aircraft, the arrangement is compact, the heat dissipation space is small, the system integration coupling degree is high, the heat flow density of an antenna array surface is high, if the heat cannot be taken away from the antenna array surface in time, the temperature of the antenna array surface is increased, the performance of a T/R assembly is reduced and even fails, the electrical performance of the antenna is affected, and the performance of a radar is deteriorated. Therefore, the thermal design of the active phased array antenna is directly related to the electrical performance index of the antenna, and finally influences the detection, tracking and other performances of the active phased array radar.

The liquid cooling plate technology utilizes the liquid in the cavity of the liquid cooling device to perform forced convection heat exchange with the cavity, and uses continuous liquid supply and heat dissipation to dissipate heat of the heat dissipation source, thereby dissipating heat of the heating device. The heat transfer coefficient of the liquid cooling working medium is more than 20 times of that of air, so that forced liquid cooling is usually used under the condition of large heat flow density. The advantage of forced liquid cooling is that heat dispersion is comparatively even, and the radiating efficiency is high.

The space of the radar of the aircraft is special and narrow, the array element spacing of the phased array antenna must meet the constraints of half-wavelength design and the like, and the number of receiving and transmitting channels of the common-caliber dual-frequency dual-polarized antenna is required to be increased by 2-4 times under the condition that the space volume is severely limited, so that the difficulties of space arrangement design, high-integration-degree dense connection, high-power heat consumption and the like are increased sharply. Nearly thousands of radio frequency connectors need to be arranged in the antenna with the diameter of 230mm, the total heating power of the phased array antenna can reach more than 3000W, and the structural design of the phased array antenna needs to meet the requirements of structural strength, rigidity, heat dissipation, connection reliability, maintainability and the like.

Disclosure of Invention

In view of the foregoing analysis, the present invention is directed to a liquid cooling system and a liquid cooling method thereof, so as to solve the problem that the heat flow density of the antenna array of the conventional phased array antenna is large, and if the heat cannot be taken away from the antenna array in time, the temperature of the antenna array may increase, which may cause performance degradation and even failure of the T/R component, thereby affecting the electrical performance of the antenna.

The purpose of the invention is mainly realized by the following technical scheme:

a liquid cooling system, comprising: the intelligent micro-controller, the liquid cold source, the liquid inlet pipeline, the liquid return pipeline and the liquid cooling plate; the intelligent microcontroller is used for controlling the working state of the liquid cooling system; the liquid cooling source is used for providing cooling liquid required by cooling heat exchange; the liquid inlet pipeline is used for injecting cooling liquid into the liquid cooling plate; the liquid return pipeline is used for recovering cooling liquid after heat exchange in the liquid cooling plate; the liquid cooling plate is in contact with the phased array antenna and used for cooling and radiating the phased array antenna.

Further, the liquid cooling source includes: the cooling system comprises a storage tank for storing cooling liquid, a variable frequency circulating pump for providing circulating power of the cooling liquid and an electronic expansion valve capable of adjusting the liquid inlet flow of a liquid inlet pipeline.

Furthermore, a liquid inlet monitor is installed on the liquid inlet pipeline, and a liquid return monitor is installed on the liquid return pipeline.

Further, the liquid inlet monitor is used for monitoring the pressure, the temperature and the flow of liquid in the liquid inlet pipeline; the liquid return monitor is used for monitoring the pressure, the temperature and the flow of liquid in the liquid return pipeline.

Further, the liquid cooling system further includes: a liquid inlet and outlet joint and an adapter; the two liquid inlet and outlet joints are respectively a first liquid inlet and outlet joint and a second liquid inlet and outlet joint; the adapter has two, is first adapter and second adapter respectively. And a temperature sensor is arranged on the phased array antenna and used for monitoring the temperature of the antenna.

Further, the feed liquor pipeline includes: the first liquid cooling pipe, the first liquid inlet and outlet joint and the first adapter joint; the liquid return pipeline includes: second liquid cooling pipe, second business turn over liquid joint, second adapter.

Further, the first liquid cooling pipe is connected with the liquid cooling source and the first liquid inlet and outlet joint; the first adapter is connected with the first liquid inlet and outlet connector and the liquid inlet of the liquid cooling plate; the second adapter is connected with a liquid outlet of the liquid cooling plate and a second liquid inlet and outlet joint; the second liquid cooling pipe is connected with the second liquid inlet and outlet joint and the liquid cooling source.

Further, first business turn over liquid connects and second business turn over liquid joint structure is the same, includes: a liquid inlet joint and a liquid outlet joint; the liquid inlet joint and the liquid outlet joint are communicated through splicing.

Further, the liquid cooling plate is provided with an internal cavity for circulating cooling liquid; a plurality of parallel flow channels which are arranged in parallel are arranged in the inner cavity; and a first radio frequency channel for mounting the phased array antenna is arranged on the metal substrate between the adjacent parallel flow channels.

A liquid cooling method of a liquid cooling system comprises the following steps:

step S1: the controller controls the starting of cooling liquid circulation in the liquid cooling system;

step S2: after the circulation of the cooling liquid is started, the variable-frequency circulating pump pumps the cooling liquid in the storage tank into the liquid inlet pipeline; the cooling liquid flows into the liquid cooling plate through the liquid inlet pipeline, and the phased array antenna on the liquid cooling plate is cooled and heat exchanged in the process that the cooling liquid flows through the liquid cooling plate;

step S3: the cooling liquid after heat exchange flows back to the liquid cold source from the liquid return pipeline;

step S4: repeating the step S2 and the step S3 to circularly dissipate heat of the phased array antenna;

in the steps S2-S4, the temperatures of the liquid inlet pipeline, the liquid return pipeline and the phased array antenna are respectively monitored in real time through a liquid inlet monitor, a liquid return monitor and a temperature sensor in the phased array; and the temperature information of the liquid inlet pipeline, the liquid return pipeline and the phased array antenna is transmitted to the intelligent microcontroller.

The technical scheme of the invention can at least realize one of the following effects:

1. the invention relates to a liquid cooling system for a phased array antenna. The system has the advantages of short heat transfer path, small heat transfer resistance, high heat dissipation efficiency, high structural integration level, reliable connection of the liquid cooling circulating system and better adaptability to vibration, impact and other environments.

2. The liquid cooling system for the phased array antenna monitors the temperature of the phased array antenna and the state of a liquid cooling pipeline in real time. And according to the temperature and the running state, the flow rate of the cooling liquid and the temperature control mode are adjusted.

3. According to the liquid cooling plate of the liquid cooling phased array antenna, the spoilers which penetrate through the cavity and are arranged in disorder are processed in the water diversion cavity and the water collection cavity. The turbulator can ensure that the cooling liquid flows in the cavity in an unordered manner, can promote the cooling liquid to be uniformly distributed to each parallel flow channel, and simultaneously promotes the fluid to enter a turbulent flow state, thereby further improving the heat exchange efficiency between the cooling liquid and the metal cavity.

In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.

FIG. 1 is an exploded view of a liquid cooled phased array antenna of the present invention;

FIG. 2 is a liquid cooling system for a phased array antenna;

FIG. 3 is a bottom view of a liquid cooled phased array antenna of the present invention;

FIG. 4 is a top view of a liquid cooled phased array antenna of the present invention;

FIG. 5 is a cross-sectional view of a liquid cooling system;

FIG. 6 is a first view of a liquid cooled plate;

FIG. 7 is a second view of a liquid cooled plate;

FIG. 8 is a liquid cooled plate and adapter;

FIG. 9 is a transverse cross-sectional view of a liquid cooled plate;

FIG. 10 is a longitudinal cross-sectional view of the liquid cooled panel;

FIG. 11 is a first view of the TR assembly;

FIG. 12 is a second view of the TR assembly;

FIG. 13 is a TR assembly and support structure;

FIG. 14 is an assembled view of the support structure;

FIG. 15 is an exploded view of the support structure;

figure 16 is an adapter;

figure 17 is an adapter half-section configuration;

FIG. 18 is a view showing a structure of a liquid outlet joint;

FIG. 19 is a view of a liquid inlet joint;

FIG. 20 is a perspective view of the movable sleeve;

FIG. 21 is a front view of the movable sleeve;

FIG. 22 is a view showing the use state of the liquid inlet and outlet joint;

fig. 23 is a schematic diagram of a phased array antenna cooling system.

Reference numerals:

1-liquid cooling plate; 2-an antenna disc; a 3-TR module; 4-a radio frequency coaxial connector; 5-sealing ring; 6-adapter; 7-a support structure; 8-liquid inlet and outlet joints; 9-a first liquid-cooled tube; 10-a second liquid-cooled tube;

101-liquid inlet; 102-a liquid outlet; 103-a first radio frequency channel; 104-a water diversion cavity; 105-a spoiler; 106-parallel channels; 107-water catchment cavity; 108-a first set screw; 106-1-lower level parallel channels; 106-2-upper level parallel channels;

301-threaded hole; 302-support lug; 303-first mounting hole; 304-a second mounting hole; 305-a beam; 306-a third radio frequency channel; 307-a second set screw;

61-a third set screw;

71-first half mask; 72-a second half-cover; 701-a third mounting hole; 702-a fourth mounting hole;

801-liquid inlet joint metal base; 802-a liquid inlet channel; 803-liquid inlet valve block; 804-a first resilient member; 805-a first elastic internal resistance check ring; 806-elastic external check ring; 807-promotion pins; 808-a circular pushing platform; 809-fixing the end cover; 810-a first thrust stage; 811-a movable sleeve; 812-a liquid outlet valve block; 813-second elastic outer check ring; 814-a liquid outlet channel; 815-liquid outlet joint metal base body; 816-a second elastic element; 817-tapered thread section; 818-an arc-shaped notch; 819-a linear slot; 820-a first restriction site; 821-second restriction site.

Detailed Description

The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.

Example 1

One embodiment of the present invention, as shown in fig. 1-23, discloses a liquid cooling system for a phased array antenna, comprising: liquid cooling plate 1, liquid inlet pipeline, liquid return pipeline, liquid inlet monitor, liquid return monitor, liquid cold source and intelligent microcontroller.

The working area of the liquid cooling system is arranged on the liquid cooling plate 1 and the liquid cooling source, cooling liquid at the liquid cooling source is communicated with the liquid cooling plate 1 through a liquid inlet pipeline, the cooling liquid absorbs heat at the liquid cooling plate 1 to take away heat generated by the working of the phased array antenna, and the temperature of the cooling liquid is raised; the heated cooling liquid flows back to the liquid cold source through the liquid return pipeline; after the cooling liquid flows through the condenser at the liquid cooling source to release heat, the cooling liquid is cooled, and the cooled cooling liquid returns to the circulating pipeline to enter the next cooling circulation.

Specifically, a temperature sensor is arranged at the phased array antenna; and a liquid inlet monitor is arranged on the liquid inlet pipeline and used for monitoring the temperature, flow and pressure of the cooling liquid flowing into the liquid cooling plate. And a liquid return detector is arranged on the liquid return pipeline and used for monitoring the temperature and the pressure of the cooling liquid of the flowing liquid cooling plate.

Phased array antennas operate with a significant amount of heat generation. If this heat cannot be removed, the sensitive components within the antenna will not operate. Therefore, the liquid cooling system of the phased array antenna of the present invention is provided with a temperature detector (not shown) to monitor the temperature of the phased array antenna.

Further, when the phased array antenna works, the liquid inlet monitor, the liquid return monitor and the temperature sensor in the phased array can monitor the temperature of the liquid inlet pipeline, the temperature of the liquid return pipeline and the temperature of the phased array antenna in real time.

In one embodiment of the present invention, the liquid cooling source includes: the variable-frequency circulating pump provides power for circulation of cooling liquid, and the electronic expansion valve can adjust the liquid inlet flow of the liquid inlet pipeline according to instructions of the intelligent microcontroller.

Further, the liquid cooling source still includes the bin that is used for storing the coolant liquid, the frequency conversion circulating pump can be with the coolant liquid pump income liquid pipeline in the bin, and then dispels the heat to the antenna through feed liquor pipeline injection liquid cold drawing 1. After heat exchange and temperature rise, the cooling liquid releases heat through a condenser in the liquid return pipeline and then flows back to the storage tank.

Furthermore, the intelligent microcontroller can control the start and stop of the variable-frequency circulating pump and the electronic expansion valve at the liquid cold source and the opening degree of the electronic expansion valve, and the flow of the liquid inlet pipeline is adjusted through the opening degree of the electronic expansion valve.

10min before the phased array antenna starts to work, the intelligent microcontroller controls the liquid cold source to start to work, performs circulating heat exchange on the phased array antenna installed on the liquid cold plate 1, and controls the flow and the temperature of the liquid inlet pipeline to be initial set values.

Further, the intelligent microcontroller can compare the temperature and the pressure value of coolant liquid in the liquid inlet pipeline and the liquid outlet pipeline of feed liquor monitor and the transmission of returning the liquid monitor, judges whether reliable work is done to liquid cold plate 1, and then judges the cooling effect of liquid cold plate 1 to phased array antenna.

In a specific embodiment of the invention, an upper limit temperature and a lower limit temperature for normal operation of the phased array antenna are set; meanwhile, the upper limit pressure of the liquid return pipeline for normal work is set.

Furthermore, when the pressure value of the liquid return pipeline is abnormal, the intelligent microcontroller controls the phased array antenna to reduce power and work, and the phased array antenna works by depending on the solid heat sink of the liquid cooling plate.

Further, when the temperature sensor in the phased array antenna monitors that the temperature value of the phased array antenna exceeds the preset upper limit temperature, the intelligent microcontroller controls the liquid cooling source to increase the flow of the cooling liquid of the liquid inlet pipeline until the temperature value of the phased array antenna monitored by the temperature sensor is lower than the preset upper limit temperature.

Further, when the monitoring value of the temperature sensor in the phased array antenna is lower than the preset lower limit temperature, the intelligent microcontroller controls the liquid cooling source to reduce the flow of the cooling liquid of the liquid inlet pipeline until the temperature sensor monitors that the temperature value of the phased array antenna is higher than the preset lower limit temperature.

The specific structure and the working principle of the liquid cooling system are as follows:

in one embodiment of the present invention, the liquid inlet pipeline includes: a first liquid cooling pipe 9, a liquid inlet and outlet joint 8 and an adapter 6; the liquid return pipeline includes: a second liquid cooling pipe 10, a liquid inlet and outlet joint 8 and an adapter 6.

Furthermore, the phased array antenna is arranged on the liquid cooling plate 1, and cooling liquid can flow through the liquid cooling plate 1 to dissipate heat of the phased array antenna; specifically, adapters 6 are installed at two ends of the liquid cooling plate 1, and an internal cavity of the liquid cooling plate 1 is communicated with an internal flow channel of the adapter 6; two groups of adapters 6 and liquid inlet and outlet connectors 8 are arranged, and two ends of the liquid cooling plate 1 are respectively communicated with a first liquid cooling pipe 9 and a second liquid cooling pipe 10 through the adapters 6 and the liquid inlet and outlet connectors 8; as shown in fig. 2. The first liquid cooling pipe 9 is used for injecting cooling liquid into the liquid cooling plate 1, and the second liquid cooling pipe 10 is used for recovering the cooling liquid.

In a specific embodiment of the invention, the two ends of the liquid cooling plate 1 are both connected with the adapters 6, the adapters 6 are communicated with the inner cavity of the liquid cooling plate 1, and the sealing ring 5 is arranged between the adapters 6 and the liquid cooling plate 1.

In a specific embodiment of the invention, the adapter 6 is connected with the liquid cooling pipe through the liquid inlet and outlet joint 8, and the liquid cooling plate 1 is connected into the liquid cooling system through the adapter 6 and the liquid inlet and outlet joint 8. Specifically, the access liquid connects includes: a liquid inlet joint and a liquid outlet joint. During the use, liquid inlet joint and adapter 6 fixed connection, go out liquid joint and liquid cooling pipe fixed connection, through liquid inlet joint and the grafting of going out the liquid joint fixed, liquid inlet joint and the inside intercommunication of liquid joint realize the intercommunication of adapter 6 and liquid cooling pipe, and then realize inserting liquid cooling board 1 into the liquid cooling system.

Further, the adapter 6 and the liquid cooling plate 1 are connected and fixed by a third fixing screw 61.

Two adapters 6 are provided, namely a first adapter and a second adapter respectively; two liquid inlet and outlet joints 8 are provided, namely a first liquid inlet and outlet joint and a second liquid inlet and outlet joint respectively; the liquid-cooled tube includes: a first liquid-cooled tube 9 and a second liquid-cooled tube 10. The first adapter and the second adapter are respectively connected to two ends of the liquid cooling plate, the first adapter is communicated with the first liquid cooling pipe 9 through the first liquid inlet and outlet connector, and the second adapter is communicated with the second liquid cooling pipe 10 through the second liquid inlet and outlet connector.

In one embodiment of the present invention, as shown in fig. 17, the pipe inside the adapter 6 is L-shaped. The adapter 6 of L shape runner can make inlet 101 can extend the direction of perpendicular to liquid cooling plate 1, can make the first liquid cooling pipe 9 of liquid cooling plate 1 perpendicular to, the second liquid cooling pipe 10 inserts the liquid cooling system, easy to assemble with fixed. The other end of the adapter 6 is provided with a liquid inlet and outlet joint 8 which is in butt joint with the liquid cooling pipeline through the liquid inlet and outlet joint 8.

The specific structure of the liquid cooling plate 1 and the liquid inlet and outlet joint 8 is described as follows:

1) first, the structure of the liquid-cooled panel 1 of the present invention is described;

the main body of the liquid cooling plate 1 is a metal substrate having an internal cavity for circulating a cooling liquid. The internal cavity structure includes: a water diversion cavity 104, a parallel flow passage 106 and a water collection cavity 107; the parallel flow channel 106 is a plurality of linear flow channels arranged in parallel. The water diversion cavity 104 and the water collection cavity 107 are arranged on two sides of the parallel flow passage 106, and the water diversion cavity 104 and the water collection cavity 107 are communicated through the parallel flow passage 107.

Further, both ends of the liquid cooling plate 1 are provided with a liquid inlet 101 and a liquid outlet 102, and the liquid inlet 101 and the liquid outlet 102 are communicated with the internal cavity for realizing the inflow and outflow of the cooling liquid. Specifically, one end of the water diversion cavity 104 is communicated with the liquid inlet 101, and the other end is communicated with the parallel flow channel 106; the water collecting chamber 107 has one end communicating with the parallel flow path 106 and the other end communicating with the liquid outlet 102.

Further, a plurality of first radio frequency channels 103 distributed in an array are arranged on a metal substrate of the liquid cooling plate 1, specifically, the first radio frequency channels 103 are arranged on the metal substrate between adjacent parallel flow channels 106, and the first radio frequency channels 103 penetrate through the metal substrate.

The first radio frequency channel 103 is provided with a radio frequency coaxial connector 4, and two ends of the radio frequency coaxial connector 4 are connected with the antenna disc 2 and the TR component. Wherein, TR subassembly 3 and antenna dish 2 are common fixed connection on liquid cold plate 1, and antenna dish 2 is attached in the front of liquid cold plate 1, and TR subassembly 3 is attached at the back of liquid cold plate 1, and radio frequency coaxial connector 4 runs through liquid cold plate 1 and links to each other TR subassembly 3 and antenna dish 2, has set up complete signal transmission passageway.

Specifically, a plurality of first radio frequency channels 103 distributed in an array are arranged on the liquid cooling plate 1, the radio frequency coaxial connectors 4 are installed in the first radio frequency channels 103, or the radio frequency coaxial connectors 4 penetrate through the first radio frequency channels 103 to connect the antenna radiation units and the TR assemblies 3 on two sides of the liquid cooling plate 1.

Further, the liquid cooling plate 1 is formed in a disk shape. The liquid cooling plate 1 is used for dissipating heat of the TR component 3 attached to the surface of the liquid cooling plate, and the heat dissipated when the TR component 3 works is taken away through circulating cooling liquid (water or other liquid).

As shown in fig. 9, the liquid cooling plate 1 is provided with a water diversion chamber 104, a parallel flow passage 106 and a water collection chamber 107 from left to right. The water diversion cavity 104 drains the cooling liquid input into the liquid cooling plate 1 into each parallel flow channel 106, and the water collection cavity 107 converges the cooling liquid flowing out of each parallel flow channel 106 to the liquid outlet 102, so as to flow out of the liquid cooling plate 1.

As shown in fig. 9, the parallel flow channels 106 distributed in parallel on the liquid cooling plate 1 form a heat exchange working area of the liquid cooling plate 1, which completely covers the contact area between the liquid cooling plate 1 and the TR module 3. The working area of the liquid cooling plate 1 is provided with a first radio frequency channel 103 through which the radio frequency coaxial connector 4 passes.

Further, the first radio frequency channels 103 are distributed on the liquid cooling plate 1 in an array manner, a group of parallel flow channels 106 are arranged between every two rows of the first radio frequency channels 103, and the longitudinal sections of the parallel flow channels 106 are rectangular.

Further, the rectangular size of the cross section of the first rf channel 103 is determined by fluid mechanics simulation, and when the rectangular aspect ratio is 3:1, the heat exchange efficiency is the highest.

Further, the parallel flow channel 106 connecting the water diversion cavity 104 and the water collection cavity 107 is divided into two layers of flow channels: a lower layer of parallel flow channels 106-1 and an upper layer of parallel flow channels 106-2. The distance between the two layers of the flow channels of the lower layer parallel flow channel 106-1 and the upper layer parallel flow channel 106-2 is 2mm, so that the heat exchange area of the liquid and the metal substrate in the heat exchange working area in unit volume is increased to the maximum.

As shown in fig. 5, turbulence generators 105 which penetrate through the cavities and are arranged in disorder are processed in the water diversion cavity 104 and the water collection cavity 107. The spoiler 105 is a columnar structure communicating the upper and lower surfaces of the cavity, and the diameter of the spoiler 105 is 3 mm. The turbulator 105 can enable the cooling liquid to flow in disorder in the cavity, can enable the cooling liquid to be evenly distributed to the parallel flow channels 106, and meanwhile enables the fluid to enter a turbulent flow state, so that the heat exchange efficiency between the cooling liquid and the metal cavity is further improved.

The overall appearance of the liquid cooling plate 1 is shown in fig. 6, the transverse cross-sectional view of the liquid cooling plate 1 at the position of the parallel flow channels 106 is shown in fig. 9, and the longitudinal cross-sectional view of the liquid cooling plate 1 at the position of the parallel flow channels 106 is shown in fig. 10.

Because the structure of the inner cavity of the liquid cooling plate 1 is complex, the liquid cooling plate 1 is formed by splicing a plurality of layers, and all the layers are fixed by welding or bonding.

Further, as shown in fig. 16, the adapter 6 is fixedly connected to the liquid cooling plate 1 through a mounting lug on the end cover, specifically, a threaded hole is formed in the adapter 6, and the adapter is connected to the liquid cooling plate 1 through a screw.

When radiating phased array antenna through liquid cooling board 1: as shown in fig. 5 and 9, the cooling fluid flows into liquid-cooled plate 1 from fluid inlet 101 through adapter 6, flows through water diversion chamber 104, parallel flow passage 106 and water collection chamber 107 in sequence, flows out of liquid-cooled plate 1 through fluid outlet 102, and flows back to the cooling system through adapter 6.

The liquid cooling plate 1 comprises a metal substrate, a liquid inlet 101, a liquid outlet 102, a water distribution cavity 104, a water collection cavity 107, a parallel flow channel 106, a spoiler 105 and a first radio frequency channel 103; furthermore, the liquid cooling plate 1 is made of rustproof aluminum with good welding performance and high heat conductivity. The liquid cooling plate 1 is fixed with the phased array radar through holes 108 uniformly distributed along the circumferential direction. The liquid cooling plate 1 is a heat dissipation device which is connected into a heat dissipation system through the adapter 6, the whole structure is compact, the function areas are reasonably distributed, the welding realizability is good, the cooling liquid can be ensured to be fully heat-exchanged in the liquid cooling structure, and meanwhile, the liquid cooling plate has good adaptability to the environments such as vibration, impact and the like.

2) Next, a specific structure of the liquid inlet and outlet joint 8 of the present invention is described:

as shown in fig. 18, 19 and 22, the liquid inlet/outlet joint 8 of the present invention includes: a liquid inlet joint and a liquid outlet joint.

The liquid outlet joint and the liquid inlet joint are butted along the axis, so that the interiors of the liquid outlet joint and the liquid inlet joint are communicated and used for circulating cooling liquid; the liquid cooling plate 1 of the phased array antenna can be connected into a liquid cooling circulating system of the phased array antenna through the liquid inlet and outlet joint.

Wherein:

the liquid inlet joint includes: the liquid inlet joint metal base body 801, the liquid inlet valve block 803, the first elastic piece 804 and the circular pushing platform 808 are arranged in an inner cavity of the liquid inlet joint metal base body 801; the circular pushing platform 808 is fixedly connected with a liquid inlet joint metal substrate 801; the liquid inlet valve block 803 is sleeved on the circular pushing platform 808 and used for sealing the liquid inlet channel 802; a first elastic element 804 is arranged between the inlet valve block 803 and the inlet joint metal base 801.

The liquid outlet joint comprises: a liquid outlet joint metal base 815, a liquid outlet valve block 812 and a second elastic member 816; a liquid outlet valve block 812 and a second elastic piece 816 are arranged in the inner cavity of the liquid outlet joint metal base 815; the liquid outlet valve block 812 is used for sealing a liquid outlet channel of the liquid outlet joint metal base 815, and a second elastic piece 816 is arranged between the liquid outlet valve block 812 and the liquid outlet joint metal base 815.

As shown in fig. 22, after the liquid inlet joint is butted with the liquid outlet joint, the liquid inlet joint and the liquid outlet joint can be communicated. When the liquid outlet joint is communicated, the liquid outlet joint can be inserted into the inner cavity of the liquid inlet joint, the liquid inlet joint is overlapped with the liquid outlet joint, and at the moment, the circular pushing platform 808 pushes the liquid outlet valve block 812 to move inwards (away from the liquid outlet channel) and compress the second elastic piece 816; the liquid outlet joint metal base 815 pushes the liquid inlet valve block 803 to move inwards (away from the liquid inlet channel direction) and compresses the first elastic element 804, and the cooling liquid flows out from the liquid outlet channel, and the liquid outlet joint is communicated with the liquid inlet joint.

As shown in fig. 19, the liquid inlet joint has the following specific structure:

further, the circular pushing platform 808 is columnar, and the circular pushing platform 808 is coaxial with the liquid inlet joint metal matrix 801; the circular pushing platform 808 and the liquid inlet joint metal base 801 are fixedly connected or integrally structured. Specifically, the end surface of the circular pushing platform 808 is flush with the end surface of the liquid inlet joint metal base 801.

Further, the liquid inlet valve block 803 is a circular ring structure, and the inner diameter of the liquid inlet valve block is in clearance fit with the outer surface of the circular pushing platform 808 and the inner surface of the liquid outlet joint metal base 801.

Specifically, an annular liquid inlet valve block 803 is sleeved outside the circular pushing platform 808, and the liquid inlet valve block 803 can seal a liquid inlet channel 802 of the liquid inlet joint metal base 801; that is, the inner side of the inlet valve block 803 is fitted to the outer surface of the circular pushing table 808, and the outer side of the inlet valve block 803 is fitted to the inner wall surface of the inlet joint metal base 801.

Further, the first elastic member 804 and the liquid inlet valve block 803 are sleeved outside the circular pushing platform 808 in parallel, and the first elastic member 804 and the liquid inlet valve block 803 are arranged in parallel along the axis of the circular pushing platform 808; the first elastic member 804 is provided between the inlet valve block 803 and the end surface of the cavity of the inlet joint metal base 801, that is, the first elastic member 804 is provided between the side surface of the inlet valve block 803 and the end surface of the cavity of the inlet joint metal base 801.

Further, in order to ensure the sealing effect of the liquid inlet valve block 803 on the liquid inlet channel 802, a first elastic inner blocking ring 805 and an elastic outer blocking ring 806 are arranged to seal the liquid inlet channel 802; specifically, a first elastic internal resistance check ring 805 is arranged between the liquid inlet valve block 803 and the circular pushing platform 808, and the first elastic internal resistance check ring 805 is used for sealing a gap between the liquid inlet valve block 803 and the circular pushing platform 808; an elastic outer check ring 806 is arranged between the liquid inlet valve block 803 and the inner wall surface of the liquid inlet joint metal base body 801, and the elastic outer check ring 806 is used for sealing a gap between the liquid inlet valve block 803 and the liquid inlet joint metal base body 801.

Further, a first elastic inner resistance check ring 805 and an elastic outer resistance check ring 806 are fixedly installed on the circular pushing platform 808 and the liquid inlet joint metal base 801 respectively.

Specifically, the first elastic internal resistance check ring 805 is fixedly mounted on the cylindrical side surface of the circular pushing platform 808 in a bonding or clamping manner, and the elastic external resistance check ring 806 is fixedly mounted on the inner wall surface of the liquid inlet joint metal base 801 in a bonding or clamping manner. The first elastic inner resistance check ring 805 protrudes out of the outer surface of the circular pushing platform 808, the elastic outer resistance check ring 806 protrudes out of the inner wall surface of the liquid outlet joint metal base 801, and the liquid inlet valve block 803 is in interference fit with the first elastic inner resistance check ring 805 and the elastic outer resistance check ring 806 to maintain the tightness of the liquid inlet channel.

Furthermore, a boosting pin 807 is arranged on the outer side surface of the liquid inlet joint and is used for matching with the movable sleeve 811; one end of the liquid inlet joint is provided with a liquid inlet channel 802, the other end of the liquid inlet joint is provided with a fixed end cover 809, and the fixed end cover 809 is used for being connected with the adapter 6.

As shown in fig. 18, the liquid outlet joint has the following specific structure:

the liquid outlet joint comprises: a liquid outlet joint metal base 815, a liquid outlet valve block 812 and a second elastic member 816; the liquid outlet valve block 812 is used for sealing a liquid outlet channel 814 of the liquid outlet joint metal base 815, a second elastic piece 816 is arranged between the liquid outlet valve block 812 and the left end face of the liquid outlet joint metal base 815, the liquid outlet valve block 812 is pressed to slide to the left, the liquid outlet joint can be opened, and cooling liquid in the liquid outlet joint flows out of the liquid outlet channel 814.

Further, a second elastic internal resistance retainer ring 813 is arranged between the liquid outlet valve block 812 and the inner wall surface of the liquid outlet joint metal base 815.

Specifically, the second elastic internal resistance retainer ring 813 is fixed to the liquid outlet valve block 812 by means of adhesion or snap connection, and can move along with the liquid outlet valve block 812. The second elastic internal resistance retainer ring 813 protrudes out of the surface of the liquid outlet valve block 812, and the liquid outlet valve block 812 blocks the liquid outlet channel 814 under the thrust of the second elastic member 816 and is sealed by the second elastic internal resistance retainer ring 813, as shown in fig. 18.

Further, one end of the liquid outlet joint metal base 815 is provided with a liquid outlet channel 814, and the other end is provided with a conical threaded section 817, and is in threaded connection with the first cooling pipe 9 through the conical threaded section 817.

Further, the outer side of the liquid outlet joint metal base 815 is sleeved with a movable sleeve 811. And the movable sleeve 811 is fitted on the liquid outlet joint metal base 815, and the movable sleeve 811 and the liquid outlet joint metal base 815 can rotate relatively but cannot move relatively in the axial direction.

Specifically, the movable sleeve 811 is provided with a guide groove, and the guide groove includes: an arcuate notch 818 and a linear notch 819; a linear slot 819 extends in the axial direction of the movable sleeve 811; the arcuate slot 818 communicates with the linear slot 819 at one end and extends to the opening of the movable sleeve 811 at the other end. Further, the linear slot 819 has a first restriction 820 and a second restriction 821 at opposite ends thereof.

When the liquid inlet joint is in butt joint with the liquid outlet joint and is in butt joint through the movable sleeve 811, the boosting pin 807 of the liquid inlet joint can slide along the arc-shaped notch 818, after the boosting pin 807 moves to the first limit point 820, the external force is applied by loosening, the first elastic piece 804 and the second elastic piece 816 push the liquid outlet joint and the liquid inlet joint to be away from each other, the boosting pin 807 moves from the first limit point 820 to the second limit point 821, and the butt joint of the liquid inlet joint and the liquid outlet joint is completed, as shown in fig. 22.

In one embodiment of the present invention, the first elastic member 804 and the second elastic member 816 are metal springs.

Further, in one embodiment of the present invention: a first push-stop platform 810 is arranged at the liquid inlet channel 802 of the liquid inlet joint. The first pushing platform 810 protrudes out of the inner wall of the liquid inlet channel 802 and is used for blocking the liquid inlet valve block 803; a second protruding pushing platform is arranged on the inner wall of the liquid outlet channel 814 of the liquid outlet joint, and the second pushing platform is used for blocking the liquid outlet valve block 812.

As shown in fig. 18, the liquid outlet channel 814 of the liquid outlet joint is matched with the metal base 815 of the liquid outlet joint to block liquid leakage, the liquid outlet valve block 812 is pushed by the second elastic member 816 on the left side to abut against the second pushing platform of the liquid outlet channel 814, and the liquid outlet valve block is limited by the right pushing platform at a fixed position in the metal base. The liquid outlet valve block 812 is a cylindrical structure, and the outer diameter of the liquid outlet valve block is in clearance fit with the inner diameter of the metal base body. The second elastic internal resistance check ring 813 protrudes out of the outer surface of the liquid outlet valve block 812, and the second elastic internal resistance check ring 813 is in interference fit with the metal substrate to maintain the tightness of the liquid outlet channel 814.

As shown in fig. 19, a liquid inlet valve block 803 and a circular pushing platform 808 are arranged at a liquid inlet channel 802 of the liquid inlet joint to cooperate with each other to block liquid leakage, the liquid inlet valve block 803 is pushed by a right first elastic member 804 to abut against a first pushing platform 810 of the liquid inlet channel 802, and the liquid inlet valve block 803 is limited by the left pushing platform at a fixed position in a metal matrix.

Further, a certain distance is reserved between the liquid inlet valve block 803 and the circular pushing platform 808 and the liquid inlet channel 802 (the end surface of the metal base 801 of the liquid inlet joint), namely, the liquid inlet valve block 803 and the circular pushing platform 808 are recessed into the liquid inlet channel 802, so that the liquid outlet channel 813 is convenient to butt joint along the inner wall surface of the liquid inlet channel 802.

As shown in fig. 22, when the liquid inlet connector is plugged into the liquid outlet connector, that is, when the liquid outlet channel 814 is inserted into the liquid inlet channel 802, the liquid outlet channel 814 is in contact with and pressed by the liquid inlet valve block 803, the first elastic member 804 is compressed, the liquid inlet valve block 803 moves to the right, the liquid inlet valve block 803 is separated from the first elastic inner resistance retaining ring 805 and the elastic outer resistance retaining ring 806, and the liquid inlet channel 802 is communicated (opened). Meanwhile, the left end of the circular pushing platform 808 is in contact with and extrudes the liquid outlet valve block 812, the second elastic piece 816 is compressed, the liquid outlet valve block 812 moves leftwards, the liquid outlet valve block 812 is separated from the second elastic internal resistance check ring 813 and the liquid outlet channel 814, the liquid outlet channel 814 is communicated (opened), and at the moment, fluid flows into the liquid inlet channel 802 through the liquid outlet channel 814, so that the communication between the liquid inlet joint and the liquid outlet joint is realized.

Specifically, when the liquid inlet joint and the liquid outlet joint are inserted, the boosting pin 807 of the liquid inlet joint is aligned with the opening of the movable sleeve 811. Under the compression of the external force, the push-up pin 807 slides along the arc-shaped notch 818 from the opening to the first limit point 820 along with the rotation of the movable sleeve 811. At this time, the applied external force is omitted, so that the liquid inlet joint and the liquid outlet joint are naturally separated under the action of the first elastic element 804 and the second elastic element 816. The push-assist pin 807 will slide along the linear slot 819 to the final second limit 821, completing the docking.

When the liquid inlet joint and the liquid outlet joint are pulled out, the push-up pin 807 slides from the second stopper 821 to the first stopper 820 by the pressing of the external force. At this time, the applied external force is omitted, so that the liquid inlet joint and the liquid outlet joint are naturally separated under the action of the first elastic element 804 and the second elastic element 816. The push-aid pin 807 will slide out of the opening along the arcuate slot 818 from the first limit point 820, completing the extraction.

The phased array antenna liquid cooling system formed by the cold liquid plate 1, the liquid inlet pipeline, the liquid return pipeline, the liquid inlet monitor, the liquid return monitor, the liquid cooling source and the intelligent microcontroller is compact in overall structure and high in reliability, gives consideration to both passive and active flow control strategies, can ensure that cooling liquid generates sufficient heat exchange in the liquid cooling structure, enables the phased array antenna to work in a stable environment, and has good adaptability to the environments of vibration, impact and the like of an aircraft.

Example 2

A liquid-cooled phased array antenna adopts the system of the embodiment 1 to dissipate heat, is arranged on a liquid-cooled plate 1 of a liquid-cooled system, and adopts the liquid-cooled system of the embodiment 1 to cool the phased array antenna.

Specifically, the liquid-cooled phased array antenna of the present embodiment includes: the antenna comprises a liquid cooling plate 1, an antenna disc 2, a TR component 3, a radio frequency coaxial connector 4, an adapter 6, a liquid inlet and outlet adapter 8, a first liquid cooling pipe 9 and a second liquid cooling pipe 10; wherein, a plurality of antenna radiation units are arranged on the antenna disk 2 in an array manner; one end of the TR component 3 is connected with an antenna, and the other end is connected with an intermediate frequency processing unit, thereby forming a wireless transceiving system. The antenna disc 2 and the TR components are respectively fixedly arranged on the upper side and the lower side of the liquid cooling plate 1 and are in signal connection through the radio frequency coaxial connector 4. Adapter 6 is installed at 1 both ends of liquid cooling board, and adapter 6 passes through business turn over liquid joint 8 and liquid cooling union coupling, with 1 access liquid cooling system of liquid cooling board, makes the inside circulation coolant liquid of 1 liquid cooling boards, cools off phased array antenna.

As shown in fig. 1-5, the liquid-cooled plate 1 of the phased array antenna is the primary liquid-cooled heat sink. Adapter 6 is all installed to water inlet, the delivery port department of the both sides of liquid cooling board 1, and adapter 6 and liquid cooling board 1 intercommunication. The adapter 6 is radially fixed with the liquid cooling plate 1 through a flange, and the adapters 6 on two sides are respectively connected with the first liquid cooling pipe 9 and the second liquid cooling pipe 10 through the liquid inlet and outlet joints 8, so that the liquid cooling plate 1 is connected into the liquid cooling system.

Specifically, the radio frequency coaxial connector 4 penetrates through the liquid cooling plate 1, and two ends of the radio frequency coaxial connector 4 are respectively connected with the antenna radiation unit on the antenna disc 2 and the radio frequency channel of the TR component 3.

Further, install multiunit TR subassembly 3 on the liquid cooling board 1, supporting structure 7 is established to multiunit TR subassembly 3's outside cover, and supporting structure 7 passes through the screw connection with the TR subassembly to fixed mounting is on liquid cooling board 1 for support TR subassembly 3.

Furthermore, a wireless transceiving system is formed by connecting one end of the TR component 3 with an antenna and one end of the TR component with an intermediate frequency processing unit.

Further, the TR modules 3 are plate-shaped structures, and a plurality of TR modules 3 are installed in parallel below the liquid-cooled panel 1.

Specifically, an assembly mounting hole 301 is formed in the TR assembly 3, and the assembly mounting hole 301 is formed in support lugs 302 on two sides of an upper cross beam 305 of the TR assembly 3; the second fixing screw 307 is installed in the component installation hole 301 and fixed with the metal base of the liquid cooling plate 1.

Further, a third rf channel 306 is disposed on the beam 305, and the TR component 3 is connected to the lower end of the rf coaxial connector 4 through the third rf channel 306.

Further, the side surface of the TR component 3 is provided with a first mounting hole 303 and a second mounting hole 304; mounting screws in the first mounting hole 303 and the second mounting hole 304 fixedly connect the TR assembly 3 with the support structure 7. (ii) a

Further, the support structure 7 is a cover structure and can cover the TR component 3; the support structure 7 comprises: a first half cover 71 and a second half cover 72; specifically, the first half cover 71 and the second half cover 72 are each provided with a third mounting hole 701 and a fourth mounting hole 702. The third mounting hole 701 and the fourth mounting hole 702 on the support structure 7 correspond to the first mounting hole 303 and the second mounting hole 304 on the TR component 3 one by one, and are connected by screws.

Further, adapter 6 is all connected at the both ends of liquid cooling board 1, and adapter 6 and the inner chamber intercommunication of liquid cooling board 1 set up sealing washer 5 between adapter 6 and the liquid cooling board 1.

Further, the adapter 6 is connected with the liquid cooling pipe through the liquid inlet and outlet connector 8, and the liquid cooling plate 1 is connected into the liquid cooling system through the adapter 6 and the liquid inlet and outlet connector 8. Specifically, the access liquid connects includes: a liquid inlet joint and a liquid outlet joint. During the use, liquid inlet joint and adapter 6 fixed connection, go out liquid joint and liquid cooling pipe fixed connection, through liquid inlet joint and the grafting of going out the liquid joint fixed, liquid inlet joint and the inside intercommunication of liquid joint realize the intercommunication of adapter 6 and liquid cooling pipe, and then realize inserting liquid cooling board 1 into the liquid cooling system.

Furthermore, there are two adapters 6, which are a first adapter and a second adapter respectively; two liquid inlet and outlet joints 8 are provided, namely a first liquid inlet and outlet joint and a second liquid inlet and outlet joint respectively; the liquid-cooled tube includes: a first liquid-cooled tube 9 and a second liquid-cooled tube 10. First adapter and second adapter are connected respectively at the both ends of liquid cold plate 1, and specifically, adapter 6 is connected fixedly through third set screw 61 with liquid cold plate 1. The first adapter is communicated with the first liquid cooling pipe 9 through a first liquid inlet and outlet joint, and the second adapter is communicated with the second liquid cooling pipe 10 through a second liquid inlet and outlet joint.

As shown in fig. 18, after the liquid cooling plate 1 of the present invention is connected to the liquid cooling system, the intelligent microcontroller controls whether the liquid cooling system starts the circulation flow and the flow speed of the cooling liquid; the cooling liquid of the liquid cooling source flows into the liquid cooling plate 1 through the liquid inlet pipeline to carry out liquid cooling heat dissipation on the phased array antenna array, and the cooling liquid after heat exchange flows back to the liquid cooling source through the liquid outlet pipeline.

Specifically, the first liquid cooling pipe 9 serves as a liquid inlet pipeline, and the second liquid cooling pipe 10 serves as a liquid outlet pipeline; through first liquid-cooled pipe 9 to the injection coolant liquid of liquid-cooled plate 1, the coolant liquid passes through business turn over liquid joint 8 and adapter 6 and liquid-cooled plate 1 intercommunication, the coolant liquid flows into branch water cavity 104 and then disperses to each parallel runner 106 under the vortex effect through spoiler 105 from inlet 101, when the coolant liquid flows through parallel runner 106, can cool off the heat transfer to the phased array antenna of installing on liquid-cooled plate 1, the coolant liquid after the heat transfer assembles the back through converging water cavity 107 and flows out from liquid outlet 102, and through adapter 6, business turn over liquid joint 8 flows into second liquid-cooled pipe 10, flow back to the liquid cooling system.

Example 3

This embodiment provides a liquid cooling method for dissipating heat of a phased array antenna using the liquid cooling system of embodiment 1, including the steps of:

step S1: the intelligent microcontroller controls the starting of cooling liquid circulation in the liquid cooling system;

specifically, in step S1, 10min before the phased array antenna starts to operate, the intelligent microcontroller controls the start of the liquid cold source, and the intelligent microcontroller controls the variable frequency circulating pump and the electronic expansion valve at the liquid cold source to open; the liquid cooling plate 1 is provided with circulating cooling liquid through the liquid cooling source, the phased array antenna installed on the liquid cooling plate 1 is subjected to circulating heat exchange through the cooling liquid, and the flow and the temperature of the liquid inlet pipeline are controlled to be initial set values through the intelligent microcontroller.

Step S2: after the circulation of the cooling liquid is started, the frequency conversion circulating pump pumps the cooling liquid in the storage tank into the liquid inlet pipeline. Cooling liquid flows into the liquid cooling plate 1 through the liquid inlet pipeline, and the phased array antenna on the liquid cooling plate 1 is cooled and heat exchanged in the process that the cooling liquid flows through the liquid cooling plate 1;

in step S2, the opening of the electronic expansion valve is adjusted by the intelligent microcontroller, so that the flow rate of the cooling liquid in the liquid inlet pipeline can be adjusted, and the heat exchange efficiency of the cooling liquid is controlled.

Step S3: the cooling liquid after heat exchange flows back to the liquid cold source from the liquid return pipeline;

in step S3, the liquid return line circulates the heat-exchanged coolant with an increased temperature, a condenser is disposed in the liquid return line, and the coolant is cooled by the condenser and then flows back to the storage tank of the liquid cooling source for the next coolant circulation (liquid cooling heat dissipation circulation).

Step S4: and repeating the step S2 and the step S3 to circularly dissipate heat of the phased array antenna.

In the step S2 and the step S3, the temperatures of the liquid inlet pipeline, the liquid return pipeline and the phased array antenna are respectively monitored in real time through the liquid inlet monitor, the liquid return monitor and the temperature sensor in the phased array; and the temperature information of the liquid inlet pipeline, the liquid return pipeline and the phased array antenna is transmitted to the intelligent microcontroller.

In the steps S2-S4, the intelligent microcontroller compares the temperature and pressure values of the cooling liquid in the liquid inlet pipeline and the liquid outlet pipeline, which are transmitted by the liquid inlet monitor and the liquid return monitor, to determine whether the liquid cooling plate 1 works reliably, and further determine the cooling effect of the liquid cooling plate 1 on the phased array antenna.

In the step S3, when the pressure value of the liquid return pipeline is abnormal, the intelligent microcontroller controls the phased array antenna to reduce power to work, and the phased array antenna works by the solid heat sink of the liquid cooling plate.

In the steps S2-S4, when the temperature sensor in the phased array antenna monitors that the temperature value of the phased array antenna exceeds the predetermined upper limit temperature, the intelligent microcontroller controls the liquid cooling source to increase the flow rate of the cooling liquid in the liquid inlet pipeline until the temperature value of the phased array antenna monitored by the temperature sensor is lower than the predetermined upper limit temperature.

In the steps S2-S4, when the monitoring value of the temperature sensor in the phased array antenna is lower than the predetermined lower limit temperature, the intelligent microcontroller controls the liquid cooling source to reduce the flow rate of the cooling liquid in the liquid inlet pipeline until the temperature sensor monitors that the temperature value of the phased array antenna is higher than the predetermined lower limit temperature.

Further, in step S2, the cooling process of the antenna by the cooling liquid in the liquid cooling plate 1 includes:

step S21: cooling liquid flows into the liquid cooling plate 1 from the liquid inlet 101; specifically, the liquid cooling plate 1 is fixedly connected with the adapter 6, and an internal channel of the adapter 6 is communicated with the liquid inlet 101 of the liquid cooling plate 1; the adapter 6 is communicated with the liquid cooling system.

Step S22: cooling liquid flows into the water diversion cavity 104 of the liquid cooling plate 1 from the liquid inlet 101 and is diverted to the parallel flow channel 106 through the water diversion cavity 104; the phased array antenna mounted on the liquid cooling plate 1 can be cooled while the coolant flows through the parallel flow channels 106;

specifically, a first radio frequency channel 103 is arranged on the metal base body between the adjacent parallel flow channels 106, a radio frequency coaxial connector 4 is installed in the first radio frequency channel 103, and two ends of the radio frequency coaxial connector 4 are respectively connected with the antenna radiation unit and the TR component 3.

During heat exchange, the cooling liquid in the parallel flow channel 106 exchanges heat with the metal base body, the metal base body exchanges heat with the radio frequency coaxial connector 4, the radio frequency coaxial connector 4 exchanges heat with the antenna radiation unit and the TR component 3, and finally the phased array antenna is cooled.

Step S23: the cooling liquid after cooling and heat exchange flows out from the parallel flow passage 106, flows through the water converging cavity 107, is converged to the liquid outlet 102 through the water converging cavity 107, and finally flows out from the liquid outlet 102.

In the steps S22 and S23, a plurality of spoilers 105 are provided in both the water diversion cavity 104 and the water collection cavity 107; when the cooling liquid circulates in the water diversion cavity 104 and the water collection cavity 107, the turbulence generator 105 in the water diversion cavity 104 can uniformly disperse the cooling liquid into the plurality of parallel flow channels 106; the turbulators 105 in the water collection chamber 107 are capable of pooling the cooling fluid at the outlet 102.

Further, the turbulator 105 can enable the cooling liquid to flow in the cavity in an unordered manner, can enable the cooling liquid to be evenly distributed to the parallel flow channels 106, and meanwhile enables the fluid to enter a turbulent flow state, so that the heat exchange efficiency between the cooling liquid and the metal cavity is further improved.

Further, the parallel flow channel 106 connecting the water diversion cavity 104 and the water collection cavity 107 is divided into two layers of flow channels: a lower layer of parallel flow channels 106-1 and an upper layer of parallel flow channels 106-2. The distance between the two layers of the flow channels of the lower layer parallel flow channel 106-1 and the upper layer parallel flow channel 106-2 is 2mm, so that the heat exchange area of the liquid and the metal substrate in the heat exchange working area in unit volume is increased to the maximum.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims (10)

1. A liquid cooling system, comprising: the intelligent micro-controller, the liquid cold source, the liquid inlet pipeline, the liquid return pipeline and the liquid cooling plate (1); the intelligent microcontroller is used for controlling the working state of the liquid cooling system; the liquid cooling source is used for providing cooling liquid required by cooling heat exchange; the liquid inlet pipeline is used for injecting cooling liquid into the liquid cooling plate (1); the liquid return pipeline is used for recovering cooling liquid after heat exchange in the liquid cooling plate (1); the liquid cooling plate (1) is in contact with the phased array antenna and used for cooling and radiating the phased array antenna.

2. The liquid cooling system of claim 1, wherein an inlet monitor is mounted on the inlet line.

3. The liquid cooling system of claim 2, wherein a liquid return monitor is mounted on the liquid return line.

4. The liquid cooling system of claim 3, wherein the inlet monitor is configured to monitor pressure, temperature, and flow rate of liquid in the inlet line; the liquid return monitor is used for monitoring the pressure, the temperature and the flow of liquid in the liquid return pipeline.

5. The liquid cooling system of claim 2 or 3, further comprising: a liquid inlet and outlet joint (8) and an adapter (6); the two liquid inlet and outlet joints (8) are respectively a first liquid inlet and outlet joint and a second liquid inlet and outlet joint; the adapter (6) has two, is first adapter and second adapter respectively.

6. The liquid cooling system of claim 5, wherein the liquid inlet line comprises: the first liquid cooling pipe (9), the first liquid inlet and outlet joint and the first adapter joint; the liquid return pipeline includes: a second liquid cooling pipe (10), a second liquid inlet and outlet joint and a second adapter.

7. The liquid cooling system of claim 6, wherein the first liquid cooling tube (9) connects the liquid cooling source and the first liquid inlet and outlet joint; the first adapter is connected with the first liquid inlet and outlet connector and a liquid inlet (101) of the liquid cooling plate (1); the second adapter is connected with a liquid outlet (102) of the liquid cooling plate (1) and a second liquid inlet and outlet joint; and the second liquid cooling pipe (10) is connected with the second liquid inlet and outlet joint and the liquid cooling source.

8. The liquid cooling system of claim 7, wherein the first and second fluid inlet and outlet connectors are identical and comprise: a liquid inlet joint and a liquid outlet joint; the liquid inlet joint and the liquid outlet joint are communicated through splicing.

9. The liquid cooling system according to claim 1, characterized in that the liquid-cooled plate (1) is provided with an internal cavity for circulating a cooling liquid; a plurality of parallel flow channels (106) which are arranged in parallel are arranged in the inner cavity; a first radio frequency channel (103) for mounting a phased array antenna is arranged on the metal matrix between the adjacent parallel flow channels (106).

10. A method of liquid cooling of a liquid cooling system according to any one of claims 1-9, comprising the steps of:

step S1: the controller controls the starting of cooling liquid circulation in the liquid cooling system;

step S2: after the circulation of the cooling liquid is started, the variable-frequency circulating pump pumps the cooling liquid in the storage tank into the liquid inlet pipeline; cooling liquid flows into the liquid cooling plate (1) through the liquid inlet pipeline, and the phased array antenna on the liquid cooling plate (1) is cooled and heat exchanged in the process that the cooling liquid flows through the liquid cooling plate (1);

step S3: the cooling liquid after heat exchange flows back to the liquid cold source from the liquid return pipeline;

step S4: and repeating the step S2 and the step S3 to circularly dissipate heat of the phased array antenna.

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