CN219162354U

CN219162354U - Embracing ring assembly of phased array radar

Info

Publication number: CN219162354U
Application number: CN202223494026.5U
Authority: CN
Inventors: 黄江常; 刘利杰; 张怡雪; 郭明凯; 王志忠
Original assignee: Beijing Huahang Radio Measurement Research Institute
Current assignee: Beijing Huahang Radio Measurement Research Institute
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-09
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to a embracing ring assembly of a phased array radar, belongs to the technical field of radar thermal control, and solves the problem that a radar liquid cooling system in the prior art can only cool a large structural member and is not beneficial to direct heat dissipation of a chip. The utility model comprises the following steps: a holding ring and a T/R cold plate; the T/R cold plate is arranged between two adjacent groups of T/R components of the phased array radar and is in direct contact with the T/R components; the T/R cold plates are multiple and are arranged at intervals with the multiple side-by-side T/R assemblies; the periphery of the T/R assembly is provided with a holding ring, and an in-plate flow passage is arranged in the T/R cold plate; the multiple groups of in-plate flow passages are connected in parallel, and the in-plate flow passages are communicated with the in-ring flow passages of the holding ring. According to the utility model, the direct flow of the liquid cooling liquid into the T/R cold plate is realized, and the in-plate flow channels of the T/R cold plate are connected in parallel through the flow channels in the holding ring, so that the direct heat dissipation of the T/R assembly is realized.

Description

Embracing ring assembly of phased array radar

Technical Field

The utility model relates to the technical field of radar thermal control, in particular to a embracing ring assembly of a phased array radar.

Background

The phased array radar seeker has the outstanding advantages of anti-stealth, anti-interference and the like, and is the key point and the hot point of the current research of the precise guidance technology at home and abroad. The radar seeker system is rapidly developed towards high integration, ultra wideband, multifunction and intellectualization. Phased array radars are classified into active and passive types, where active phased array radars perform several orders of magnitude higher than passive phased array radars, with higher reliability. The active phased array antenna is characterized by a transmitting/receiving (T/R) module, wherein the T/R module of each radiating element performs power amplification when transmitting signals, performs low-noise amplification when receiving signals, and performs phase-shifting control of beam control. However, with the high integration of electronic components, the power of the T/R module is increasing, and the amount of heat generated is rapidly increasing.

The temperature of the T/R assembly in a narrow space rises instantaneously during the flight of the aircraft. The high temperature of the equipment easily causes the amplitude-phase characteristics of the phased array antenna to drift, and the high temperature and the temperature difference between components are extremely easy to cause hardware faults. The peak power and the transmit duty cycle (the ratio of the length of the energized operation to the total length of time) of the phased array T/R assembly during operation are severely limited in order to avoid performance instability due to overheating. Temperature control is increasingly becoming a common bottleneck problem restricting the development of phased array radars.

The T/R assembly cannot transfer heat outside the cabin to dissipate heat due to the fact that the air is limited by the closed environment of the aircraft, the aircraft continuously develops towards the supersonic speed direction, and the cabin is heated by air through the pneumatic heating effect, so that the T/R heat dissipation condition is more severe. On the other hand, the radar is limited by the limitation of a narrow space of an aircraft platform, the radar structure design is very compact, and the space reserved for a thermal control system is very limited.

The existing T/R thermal control scheme mostly adopts a thermal control means of sensible heat of a radar structural member and latent heat of a phase change material, and the temperature control is realized by absorbing heat of a T/R component through the material. However, the passive heat storage technology is limited by factors such as material heat conductivity, heat conduction path and the like, so that the temperature uniformity is poor, and the main problem of heat control is changed into a heat transfer problem along with the improvement of T/R heating density. Because the heat transfer resistance is too large, the phase change material has not started to change the phase to absorb heat and the T/R chip is overtemperature.

The active liquid cooling technology performs heat exchange by forced convection of liquid working medium, and can transfer heat for a long distance, so that the active liquid cooling technology becomes a main heat dissipation choice of modern electronic equipment. However, due to the assembly relation between a narrow space and a structure, most of the air vehicle radar liquid cooling system only flows through a large structural member to perform liquid cooling and temperature equalization or heat dissipation, so that the heat transfer distance and the heat resistance between a heating device and a heat sink are greatly increased, and the direct heat dissipation of a chip is not facilitated.

Therefore, it is desirable to provide a new embracing ring assembly for a phased array radar that improves the heat dissipation effect on the T/R assembly of the phased array radar.

Disclosure of Invention

In view of the above analysis, the utility model aims to provide a embracing ring assembly of a phased array radar, which is used for solving the problem that the existing radar liquid cooling system can only cool a large structural member and is not beneficial to direct heat dissipation of a chip.

The aim of the utility model is mainly realized by the following technical scheme:

a clasp assembly for a phased array radar, comprising: a holding ring and a T/R cold plate; the T/R cold plate is arranged between two adjacent groups of T/R components of the phased array radar and is in direct contact with the T/R components; the T/R cold plates are multiple and are arranged at intervals with the multiple side-by-side T/R assemblies; the periphery of the T/R assembly is provided with a holding ring, and an in-plate flow passage is arranged in the T/R cold plate; the multiple groups of in-plate flow passages are connected in parallel, and the in-plate flow passages are communicated with the in-ring flow passages of the holding ring.

Further, the intra-annular runner of the hugging ring includes: a first C-shaped flow passage and a second C-shaped flow passage.

Further, the holding ring is also provided with a water inlet hole and a water outlet hole.

Further, the first C-shaped flow passage is communicated with the water inlet.

Further, the second C-shaped flow passage is communicated with the water outlet.

Further, a plurality of T/R cold plates are arranged in parallel, and in-plate flow paths of the T/R cold plates are connected in parallel.

Further, the in-plate flow path includes: the first winding displacement runner, the second winding displacement runner and the third winding displacement runner.

Further, the first winding displacement runner, the second winding displacement runner and the third winding displacement runner are three groups of linear runners which are mutually connected in parallel and are communicated with the in-board runner.

Further, one end of the in-plate flow channel is communicated with the first C-shaped flow channel, and the other end of the in-plate flow channel is communicated with the second C-shaped flow channel.

Further, the water inlet hole is used for filling cooling liquid into the ring-in flow channel; the water outlet hole is used for discharging the cooling liquid in the ring-in flow passage.

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

1. according to the embracing ring assembly of the phased array radar, two groups of parallel flow channels are arranged, one group is a first intra-ring flow channel and the other group is an intra-ring flow channel and an intra-plate flow channel inside a T/R cold plate, cooling liquid simultaneously flows through the embracing ring, the temperature equalizing plate and the T/R cold plate, and the T/R cold plate is cooled through the groups of parallel intra-plate flow channels, so that the T/R assembly is cooled directly, short-distance contact between the cooling liquid flowing in circulation channel and the T/R assembly is realized, and direct cooling of the T/R assembly is realized.

2. The embracing ring component of the phased array radar can be used for installing the T/R components on two sides of a single T/R cold plate, and is small in occupied volume and high in integration level; the liquid cooling heat exchange can transfer heat for a long distance, so that space is saved.

3. According to the embracing ring assembly of the phased array radar, two groups of C-shaped flow channels are arranged inside the embracing ring, and the in-plate flow channels provided with a plurality of groups of T/R cold plates are communicated with the C-shaped flow channels, so that the parallel connection of the flow channels in the plurality of groups of plates is realized, and cooling liquid simultaneously flows through the plurality of groups of T/R cold plates to synchronously dissipate heat of the plurality of groups of T/R assemblies.

In the utility model, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the utility model 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 utility model. The objectives and other advantages of the utility model may 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 utility model, like reference numerals being used to refer to like parts throughout the several views.

FIG. 1 is a schematic diagram of the working principle of the hoop assembly in the liquid cooling circulation system;

FIG. 2 is a schematic diagram of a communication structure of a T/R cold plate runner and an in-loop runner of a clasp ring;

FIG. 3 is a schematic diagram of an inboard flow channel configuration for a T/R cold plate.

Reference numerals:

1-embracing a ring; 2-T/R cold plate; a 3-T/R assembly; 4-connecting pipelines; 5-a circulation pump; 6-a heat storage structure; 101-a water inlet hole; 102-a water outlet hole; 103-a first C-shaped flow channel; 104-a second C-shaped flow channel; 201-in-plate flow channels; 202-a first flat cable runner; 203-a second winding displacement runner; 204-third winding displacement runner.

Detailed Description

The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.

Example 1

In one embodiment of the present utility model, a hoop assembly for a phased array radar is provided, as shown in fig. 1, comprising: a holding ring 1 and a T/R cold plate 2. Wherein the T/R cold plate 2 is arranged between two adjacent groups of T/R components 3 of the phased array radar and is in direct contact with the T/R components 3; the T/R cold plates 2 are multiple and are arranged at intervals with the multiple side-by-side T/R assemblies 3; an in-board flow path 201 is arranged inside the T/R cold plate 2; the utility model realizes the direct cooling of the T/R assembly 3 by flowing cooling liquid through the in-board flow channel 201 inside the T/R cold plate 2. Specifically, the outer periphery of the T/R assembly 3 is provided with a holding ring 1, and the in-board flow channel 201 of the T/R cold plate 2 is communicated with the in-ring flow channel of the holding ring 1, as shown in fig. 2.

In the utility model, the T/R cold plate 2 is in direct contact with the T/R assembly 3, and is a main heat dissipation path of the T/R assembly 3. Specifically, T/R cold plate 2 is attached with a T/R assembly 3. And processing an in-plate runner 201 in the T/R cold plate 2, and connecting the in-plate runner 201 with an in-ring runner of the holding ring 1 in a sealing manner to form the T/R cold plate runner.

When in use, the utility model is characterized in that: the holding ring 1 is communicated with the circulating pump 5 and the heat storage structure 6 through the connecting pipeline 4 to form a circulating passage, cooling liquid circulates in the circulating passage, and the circulating pump 5 is used for driving the cooling liquid to circulate between the holding ring assembly and the heat storage structure 6. According to the utility model, the embracing ring assembly is connected into the circulation passage, the circulating pump 5 drives the low-temperature cooling liquid to flow into the embracing ring assembly, the low-temperature cooling liquid absorbs heat in the embracing ring assembly and then heats up, and the low-temperature cooling liquid flows into the heat storage structure 6 under the driving of the circulating pump 5 after heating up, exchanges heat with the phase change material in the heat storage structure 6, reduces the high-temperature cooling liquid into the low-temperature cooling liquid, and completes one-time liquid cooling circulation. Through multiple liquid cooling cycles, the rapid heat dissipation of the T/R component 3 of the phased array radar can be realized.

In one embodiment of the present utility model, as shown in fig. 2, the ring runner of the shroud 1 includes: a first C-shaped flow passage 103 and a second C-shaped flow passage 104.

The embracing ring assembly omits an intermediate link of a traditional liquid cooling heat dissipation transmission path, the T/R cold plate 2 is directly processed into the liquid cooling cold plate, an inboard flow channel 201 is processed in the T/R cold plate 2, cooling liquid flows in the inboard flow channel 201, and the T/R assembly 3 is directly contacted with the T/R cold plate 2 to transmit heat, as shown in figures 1 and 2.

Specifically, two connectors are mounted at both ends of the T/R cold plate 2 for communicating the in-loop flow passage and the in-plate flow passage 201 of the T/R cold plate 2. Specifically, a connecting pipe is arranged in the connector, and rubber rings are arranged at two ends of the connecting pipe; the connector is communicated with an in-plate flow channel 201 of the T/R cold plate 2 and an in-ring flow channel of the holding ring 1 through connecting pipes, and the two rubber rings are respectively in sealing contact with the in-plate flow channel 201 and the in-ring flow channel.

As shown in fig. 2, the shroud ring 1 is further provided with a water inlet 101 and a water outlet 102; the water inlet 101 and the water outlet 102 are respectively communicated with two ends of the ring-in flow channel. Specifically, the water inlet hole 101 is used for filling the cooling liquid into the ring-in flow channel; the water outlet 102 is used for discharging the cooling liquid in the ring flow channel.

Further, as shown in fig. 2, the in-loop flow passage includes: a first C-shaped flow passage 103 and a second C-shaped flow passage 104; the first C-shaped flow passage 103 is communicated with the water inlet hole 101; the second C-shaped flow passage 104 communicates with the water outlet hole 102.

As shown in fig. 1 and 2, a plurality of the T/R cold plates 2 are arranged in parallel, and the in-plate flow paths 201 of the plurality of the T/R cold plates 2 are connected in parallel. Specifically, one end of the in-plate flow channel 201 communicates with the first C-shaped flow channel 103, and the other end communicates with the second C-shaped flow channel 104.

As shown in fig. 3, the in-plate flow path 201 includes: a first bus bar flow channel 202, a second bus bar flow channel 203, and a third bus bar flow channel 204; the first winding displacement runner 202, the second winding displacement runner 203 and the third winding displacement runner 204 are three groups of linear runners which are mutually connected in parallel.

As shown in fig. 3, the inboard flow channel 201 in the T/R cold plate 2 communicates with the first bus bar flow channel 202, the second bus bar flow channel 203, and the third bus bar flow channel 204, ensuring good convective heat transfer between the fluid and the T/R assembly 3.

In one embodiment of the present utility model, the heat storage structure 6 is a heat reservoir. The heat reservoir is filled with phase change materials and is communicated with the circulating pump 5 and the embracing ring assembly through the connecting pipeline 4; the phase change material is used for absorbing heat of cooling liquid flowing through the inner part of the embracing ring assembly.

In practice, as shown in fig. 1, in the closed circulation path, the circulation pump 5 powers the liquid cooling system to circulate fluid between the T/R cold plate 2 and the heat storage structure 6. The cooling liquid flows through the T/R cold plate 2 to carry heat generated by the T/R assembly 3, and the temperature of the cooling liquid rises; the heated cooling liquid flows out of the T/R cold plate 2 and flows into the heat storage structure 6, the heat storage structure 6 absorbs heat, and the temperature of the cooling liquid is reduced; the cooling liquid after heat exchange flows into the T/R cold plate 2 again for heat exchange, so that circulation of flowing heat exchange is realized.

Notably, are: for the purpose of illustrating the function of the clasp assembly of the present utility model, the connecting pipe 4, the circulation pump 5 and the heat storage structure 6 are introduced for illustration, but not as a limitation of the scope of the present utility model.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. A clasp assembly for a phased array radar, comprising: a holding ring (1) and a T/R cold plate (2); the T/R cold plates (2) are arranged between two adjacent groups of T/R assemblies (3) of the phased array radar and are in direct contact with the T/R assemblies (3); the T/R cold plates (2) are multiple and are arranged at intervals with the multiple side-by-side T/R assemblies (3); the periphery of the T/R assembly (3) is provided with a holding ring (1), and the inside of the T/R cold plate (2) is provided with a plate inner flow passage (201); the multiple groups of in-plate flow channels (201) are connected in parallel, and the in-plate flow channels (201) are communicated with the in-ring flow channels of the holding ring (1).

2. A clasp assembly of a phased array radar according to claim 1, characterized in that the in-loop flow channel of the clasp (1) comprises a first C-shaped flow channel (103) and a second C-shaped flow channel (104).

3. The embracing ring assembly of the phased array radar according to claim 2, wherein the embracing ring (1) is further provided with a water inlet (101) and a water outlet (102).

4. A clasp assembly of a phased array radar according to claim 3, characterized in that the first C-shaped flow channel (103) communicates with the water inlet (101).

5. The embracing ring assembly of a phased array radar of claim 4, wherein the second C-shaped flow channel (104) communicates with a water outlet aperture (102).

6. The embracing ring assembly of a phased array radar according to claim 5, characterized in that a plurality of the T/R cold plates (2) are arranged side by side and in that the in-plate flow channels (201) of the plurality of T/R cold plates (2) are connected in parallel with each other.

7. The embracing ring assembly of a phased array radar of claim 6, wherein the inboard runner (201) comprises a first runner (202), a second runner (203) and a third runner (204).

8. The embracing ring assembly of a phased array radar of claim 7, wherein the first (202), second (203) and third (204) cabling channels are three sets of linear channels connected in parallel with each other and each in communication with an in-board channel (201).

9. The embracing ring assembly of a phased array radar according to claim 8, wherein the inboard runner (201) communicates at one end with a first C-runner (103) and at the other end with the second C-runner (104).

10. A embracing ring assembly of a phased array radar according to claim 9, the inlet opening (101) being adapted to fill the in-ring flow channel with cooling liquid; the water outlet hole (102) is used for discharging the cooling liquid in the ring-in flow channel.