阅读说明：本技术 一种相控阵天线转接冷却结构 (Phased array antenna switching cooling structure ) 是由 庄春跃 *** 刘宽耀 谢春辉 朱骏 刘洪生 黄阳 于 2019-09-20 设计创作，主要内容包括：本发明公开一种相控阵天线转接冷却结构,包含由上至下依次层叠连接的天线阵面、馈电转接结构、冷却部件和T/R组件模块,以及穿插在T/R组件模块的T/R组件内的均热板；馈电转接结构设有KK转接连接器,KK转接连接器的一端与馈电转接结构的射频连接器,另一端与T/R组件模块的T/R组件的通道接插件连接；均热板侧端贴合在T/R组件的发热芯片处且均热板上端贴合在冷却部件的冷却通道。本发明可解决现有天线阵面辐射单元与T/R组件通道无法直接相连的问题,既对天线阵面起到支撑作用,又避免因单元数太多导致的插拔安装困难度,同时实现不同排列天线阵面辐射单元与T/R组件各通道间的射频信号传递；保证整个T/R模块在工作状态下表面温度的均匀性,提高安装及维修效率。(The invention discloses a phased array antenna switching cooling structure, which comprises an antenna array surface, a feed switching structure, a cooling part, a T/R assembly module and a soaking plate, wherein the antenna array surface, the feed switching structure, the cooling part and the T/R assembly module are sequentially connected in a stacking mode from top to bottom; the feed switching structure is provided with a KK switching connector, one end of the KK switching connector is connected with the radio frequency connector of the feed switching structure, and the other end of the KK switching connector is connected with a channel connector of a T/R assembly of the T/R assembly module; the side end of the soaking plate is attached to the heating chip of the T/R assembly, and the upper end of the soaking plate is attached to the cooling channel of the cooling component. The invention can solve the problem that the radiation unit of the prior antenna array surface can not be directly connected with the channel of the T/R assembly, not only has a supporting function for the antenna array surface, but also avoids the difficulty of plugging and unplugging installation caused by too many units, and simultaneously realizes the radio frequency signal transmission between the radiation units of the antenna array surface with different arrangements and the channels of the T/R assembly; the uniformity of the surface temperature of the whole T/R module in the working state is ensured, and the installation and maintenance efficiency is improved.)

1. A phased array antenna switching cooling structure is characterized by comprising an antenna array surface (1), a feed switching structure (2), a cooling part, a T/R assembly module (5) and a soaking plate (4) inserted in a T/R assembly of the T/R assembly module (5), wherein the antenna array surface, the feed switching structure, the cooling part and the T/R assembly module are sequentially connected in a stacking mode from top to bottom;

the feed switching structure (2) is provided with a KK switching connector (23), one end of the KK switching connector (23) is connected with a radio frequency connector (27) of the feed switching structure (2), and the other end of the KK switching connector is connected with a channel connector (41) of a T/R assembly of the T/R assembly module (5) so as to realize switching transmission of radio frequency signals; the side end of the soaking plate (4) is attached to the heating chip of the T/R assembly, the upper end of the soaking plate (4) is attached to the cooling channel of the cooling part, and the cooling channel is used for uniform heat dissipation.

2. The phased array antenna handoff cooling structure of claim 1,

the feed switching structure (2) is cut into a plurality of blocks (21) in an up-down unequal mode, and the number of radiation units above each block (21) is the same as that of channels of the T/R assembly below the block.

3. The phased array antenna handoff cooling structure of claim 1,

the antenna array surface (1) is connected to the upper end of the feed switching structure (2) through threads.

4. The phased array antenna handoff cooling structure of claim 1,

the upper plane of the feed switching structure (2) is connected with each radiating unit of the antenna array surface (1) in a welding mode through pins, and the middle of the feed switching structure is led to the radio frequency connector (27) at the bottom through a cable assembly.

5. The phased array antenna handoff cooling structure of claim 1,

T/R subassembly module (5) contain 16 TR piecemeals (44), and every TR piecemeal contains 6T/R subassemblies (42), and whole T/R subassembly module (5) are the cross and arrange, the side of T/R subassembly module (5) lower extreme is fixed whole T/R subassembly module (5) through rectangular shape boundary beam (42) radially.

6. The phased array antenna handoff cooling structure of claim 1,

the antenna array surface (1) and the feeding switching structure (2) are integrally guided and positioned through a guide pin (22) and a guide pin hole (33) in the cooling component, and a screw penetrates through a through hole (26) in the feeding switching structure (2) and is fixedly installed at the upper end of the cooling component;

a plurality of process screws (11) penetrate through process holes (25) on the blocks (21) of the feed transfer structure (2) and press the cooling part.

7. The phased array antenna switching cooling structure according to claim 1 or 6, wherein the cooling component is a two-in two-out dual-channel circulating heat dissipation water cooling plate (3), each channel comprises two sealing water connectors (32), namely a water inlet connector and a water outlet connector, the water inlet connector and the water outlet connector are arranged adjacently, and four sealing water connectors (32) of two channels are respectively arranged around the water cooling plate (3) and are correspondingly symmetrical about the center of the water cooling plate (3).

8. The phased array antenna handoff cooling structure of claim 7,

and a channel (31) which penetrates through the KK switching connector (23) is arranged in the middle of the water cooling plate (3).

9. The phased array antenna handoff cooling structure of claim 7,

the soaking plate (4) comprises a plurality of integrated square soaking plate structures;

the two side ends of each soaking plate structure are attached to the positions of the heating chips of the two T/R assemblies (42), and the upper end of each soaking plate structure is attached to the flow channel of the water cooling plate (3); the arrangement direction of the flow channels of the water cooling plates (3) is parallel to the interpenetration direction of the square soaking plate structures.

10. The phased array antenna handoff cooling structure of claim 1,

the T/R assembly module (5) is attached to the water cooling plate (3) through a locking screw.

Technical Field

The invention relates to the technical field of phased array radars, is suitable for solving the problem of uniform heat dissipation of a T/R assembly of a phased array antenna, and particularly relates to a switching cooling structure of the phased array antenna.

Background

The phased array antenna array surface is formed by arranging a plurality of radiating elements at certain intervals so as to ensure that the amplitude excitation and the phase relation of each element of the antenna are controllable. Along with the antenna array surface and the T/R assembly are arranged more and more complexly, the distance size of the T/R channel cannot meet the antenna array surface element distance which is too small, the traditional method is more and more limited by customizing a new miniaturized T/R assembly to adapt to a new antenna array surface, and meanwhile, the manufacturing cost of a phased array system is too high.

The T/R component is a power module for realizing the transceiving function of the antenna and is also a component which generates the most concentrated heat in the whole phased array system, the heat productivity of the component is also increased rapidly along with the increase of the output power of the antenna, and in order to ensure the normal work of a power device of the T/R component and improve the service life of the device in the component, the component needs to be radiated reasonably. In addition, in order to ensure the radiation beam performance of the phased array antenna, the whole T/R component module is prevented from generating large temperature difference under the working state.

At present, the adopted heat dissipation mode is mainly forced air cooling, but the air cooling is influenced by the environment, the heat flux density and the space size, and the cooling capacity is difficult to meet the heat dissipation requirement of the high-power-consumption T/R assembly module. Some phased array antennas adopt a liquid-cooled heat dissipation mode, and the assembly is directly attached to the surface of a cold plate, but the uniform heat dissipation process is not considered, so that the local temperature difference of the assembly module is large, and the performance of the phased array antenna is influenced.

The utility model 'applied to heat dissipation device of active phased array antenna system' of the utility model patent of Yangming in 2016 (CN201521069868.3), proposed that the liquid cooling pipeline be connected through the coupling with the collector, the liquid cooling pipeline crimping in the cavity that two T/R subassemblies formed. The application range and the implementation mode of the method are greatly different from those of the invention. The invention of Chenshu Yun et al in 2013, 7.7.A heat dissipation device for an airborne phased array radar antenna (CN201110460197.3) proposes that a heat pipe is embedded at a position, close to a power device, on the outer side surface of the ground of a T/R box body, and liquid cooling plates are arranged on two sides of the T/R box body respectively and used as supporting mounting plates for heat dissipation. The invention relates to a heat dissipation structure of an active phased array antenna (CN201510589027.3), which is an invention patent of autumn and the like in 9/2015, and proposes that a heat transfer device added and held in two symmetrically arranged T/R components is inserted on a cold plate for heat dissipation, although the heat transfer device is similar in form, the heat dissipation problem of a complex arrangement switching structure cannot be met, and the application range of the heat dissipation structure is different from that of the invention.

The journal "electronic technology" in 2018, volume 31, and phase 7, of "study on thermal design of Ka phased array antenna module" by luxiayu et al, proposes that a base plate of an antenna array is used as a cold plate, a liquid flow channel is arranged on the cold plate, and flowing cooling liquid takes away heat generated by a T/R assembly, and well isolates the influence of heat on a front-end array antenna, which is different from the implementation mode and application range of the present invention. A paper "application of a micro-channel cold plate to an active phased-array antenna", which is published by wang conus et al in 2013, 2.s.n.2.s.in journal, "electronic mechanical engineering", volume 29, No. 1, 2013, proposes a design scheme of a rectangular micro-channel cold plate, and compared with a water-cooling plate which is connected with a plurality of KK connector channels in a penetrating manner, the design scheme is different from the application range of the invention.

Disclosure of Invention

The invention aims to provide a phased array antenna switching cooling structure, which is a cooling structure capable of realizing the connection between a radiation unit and each channel of a T/R component and the transmission of radio frequency signals without customizing components and improving the heat dissipation capacity of the whole phased array antenna, and can solve the heat dissipation problem caused by the fact that an antenna array surface and the T/R component cannot be directly connected and the channel distance of the T/R component is too small in the prior art.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a phased array antenna switching cooling structure comprises an antenna array surface, a feed switching structure, a cooling part, a T/R assembly module and a soaking plate, wherein the antenna array surface, the feed switching structure, the cooling part and the T/R assembly module are sequentially connected in a stacking mode from top to bottom; the feed switching structure is provided with a KK switching connector, one end of the KK switching connector is connected with the radio frequency connector of the feed switching structure, and the other end of the KK switching connector is connected with a channel connector of a T/R assembly of the T/R assembly module, so that switching transmission of radio frequency signals is realized; the side end of the soaking plate is attached to the heating chip of the T/R assembly, and the upper end of the soaking plate is attached to the cooling channel of the cooling part for uniform heat dissipation.

Preferably, the feed switching structure is cut into a plurality of blocks in an up-down unequal manner, and the number of the radiation units above each block is the same as that of the T/R component channels below the block.

Preferably, the antenna array is screwed to the upper end of the feed transfer structure.

Preferably, the upper plane of the feed adapter structure is connected with each radiating element of the antenna array by welding through a pin, and the middle of the feed adapter structure is led to the radio frequency connector at the bottom through a cable assembly.

Preferably, the T/R component module comprises 16 TR sub-blocks, each TR sub-block comprises 6T/R components, the whole T/R component module is arranged in a cross shape, and the side edge of the lower end of the T/R component module radially fixes the whole T/R component module through a long strip-shaped edge beam.

Preferably, the antenna array and the feed switching structure are integrally guided and positioned through a guide pin and a guide pin hole on the cooling component, and a screw is tightly installed at the upper end of the cooling component through a through hole on the feed switching structure; and a plurality of process screws penetrate through the process holes on the blocks of the feed switching structure to press the cooling part.

Preferably, cooling part is two and advances two binary channels circulation radiating water-cooling boards, and its every passageway contains two sealed water swivel, is a water swivel and a water swivel respectively, water swivel with water swivel adjacent arrangement, four sealed water swivels of binary channels set up respectively in water-cooling board just correspondingly about water-cooling board's central symmetry all around.

Preferably, a passage penetrating and connecting the KK adaptor connector is arranged in the middle of the water cooling plate.

Preferably, the vapor chamber comprises a plurality of integrated square vapor chamber structures; the two side ends of each soaking plate structure are attached to the positions of the heating chips of the two T/R components, and the upper end of each soaking plate structure is attached to the position of the runner of the water cooling plate; the arrangement direction of the water cooling plate flow channels is parallel to the interpenetration direction of each square soaking plate structure.

Preferably, the T/R assembly module is attached to the water cooling plate through a locking screw.

Compared with the prior art, the invention has the beneficial effects that: (1) the feed switching structure mainly solves the problem that the radiation unit of the prior antenna array surface can not be directly connected with the T/R component channel, adopts a multi-block mode of unequal cutting up and down, not only plays a role in supporting the antenna array surface, but also avoids the difficulty in plugging and pulling installation caused by too many units, and simultaneously realizes the radio frequency signal transmission between the radiation units of the antenna array surface in different arrangements and the channels of the T/R component; (2) in order to effectively improve the heat dissipation capacity of the T/R module, a two-in two-out two-channel circulating water cooling plate is arranged between the switching structure and the T/R module, and a channel for connecting a KK switching connector in a penetrating mode is arranged on the water cooling plate; (3) in order to ensure the uniformity of the surface temperature of the whole T/R module in a working state, an integrated strip-shaped soaking plate is arranged between two T/R components, the side surface of the soaking plate is attached to the position of a power chip of the component, and the upper surface of the soaking plate is attached to the position of a runner of a water cooling plate in parallel, so that the rapid and uniform heat dissipation of the component is effectively ensured; (4) the phased array antenna switching cooling structure provided by the invention connects the antenna radiation units arranged in different ways with the T/R component module through the feed switching structure, so that the installation and maintenance efficiency is effectively improved, and meanwhile, the problem of uniform heat dissipation of the T/R component is effectively solved due to the arrangement of the two-channel circulating water cooling plate and the integrated soaking plate.

Drawings

FIG. 1 is a schematic diagram of a phased array antenna switched cooling configuration of the present invention;

fig. 2-3 are schematic diagrams of the feed switching structure (with KK switching connector) of the present invention;

FIG. 4 is a schematic view of a water-cooled plate according to the present invention;

FIG. 5 is a block diagram of a T/R module according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.

As shown in fig. 1-5, the present invention provides a phased array antenna switching cooling structure, which comprises an antenna array 1, a feed switching structure 2, a heat dissipation structure and a T/R module 5, which are sequentially arranged from top to bottom. The feed adapter structure 2 and the framework of the antenna array face 1 are designed uniformly, so that the feed adapter structure not only plays a supporting role, but also is convenient for mounting, dismounting and assembling the internal adapter. The feed switching structure 2 ensures switching when the antenna array surface 1 and the T/R component module 5 cannot be directly connected, and the heat dissipation structure is used for improving the uniform heat dissipation capacity of the T/R component module 5.

In the sparse structure of the antenna array surface 1, the radiation units are mainly concentrated in the center of the array surface, and the whole antenna array surface 1 is installed at the upper end of the feed adapter structure 2 through the screw hole 24.

The T/R module 5 comprises a plurality of T/R components 42, and the T/R components 42 are used as transceiving function modules.

The heat dissipation structure comprises a double-channel circulating heat dissipation water cooling plate 3 and an integrated soaking plate 4. The water-cooling plate 3 is used as a cooling device of the whole phased-array system, the water-cooling plate 3 is arranged between the feed switching structure 2 and the T/R assembly module 5, and a channel for connecting the KK switching connector 23 in a penetrating manner is arranged in the middle of the water-cooling plate 3 (the KK switching connector 23 is a switching connector, the KK switching connector 23 is arranged at the lower end of the feed switching structure 2, one end of the KK switching connector 2 is connected with the radio-frequency connector 27 of the feed switching structure 2, and the other end of the KK switching connector is connected with the channel connector 41 of the TR assembly). The T/R component module 5 is attached to the water cooling plate 3 through locking screws.

The integrated soaking plate 4 comprises 15 integrated rectangular soaking plates and is inserted into the corresponding T/R assembly 42, so that the heat is effectively and uniformly transferred to the water cooling plate 3 for heat dissipation. Wherein, the two side surfaces of the soaking plate 4 are attached to the heating chip positions of the two T/R components 42, and the upper surface of the soaking plate 4 is attached to the runner of the water cooling plate 3, so as to ensure the uniform and effective heat transfer of the T/R components. The arrangement direction of the runners of the water cooling plates 3 is parallel to the installation direction of all the soaking plates 4, and cooling water takes away heat through the internal runners parallel to the directions of all the soaking plates 4.

The whole T/R component module 5 is formed by splicing 16 same TR sub-blocks 44, each TR sub-block is formed by 6 TR components 42, and the whole T/R component module 5 is arranged in a cross shape; the sides of the lower end of the T/R module 5 radially secure the entire module by means of the elongated edge beams 43.

The antenna array 1 and the feed transition structure 2 are connected through a process hole 25. The antenna array 1 and the feed adapting structure 2 are integrally guided and positioned through the guide pins 22 and the guide pin holes 33 on the water cooling plate 3, and screws penetrate through the through holes 26 of the feed adapting structure 2 to be tightly installed at the upper end of the water cooling plate 3.

The whole feed switching structure 2 adopts a multi-block mode of upper and lower unequal cutting, the antenna radiation units which are arranged in equal numbers are switched to be arranged in a T/R component channel, the array element interval of the antenna array surface 1 is ensured to be smoothly transited to the interval arrangement of the T/R component channel, the number of the upper plane radiation units of each block 21 is just the same as the number of the lower plane T/R component channels, the block testing feasibility is ensured, too large insertion and extraction force caused by too many channels is avoided, and the reliability of design is improved.

In this embodiment, the feed connection structure 2 is cut into eight sub-blocks 21 (as shown in fig. 2 by numerals 1 to 8, which respectively represent the sub-blocks) in an up-down unequal manner, and the number of upper plane radiating elements of each sub-block 21 is the same as the number of T/R module channels of the lower plane.

The feed adapting structure 2 is provided with a cable assembly inside, and the radiating element of the antenna array 1 can be smoothly connected to the radio frequency connector 27 at the bottom of the feed adapting structure 2. The upper plane of the feed switching structure 2 is welded with each radiating element of the antenna array surface through a pin, and is led to the radio frequency connector 27 on the lower bottom surface from the middle of the feed switching structure 2 through a cable assembly, and then is connected with the radio frequency connector 27 at the bottom of the feed switching structure 2 through one end of the KK switching connector 23, and the other end of the KK switching connector 23 is connected to the T/R assembly channel of the T/R assembly module 5 in a penetrating manner, so that the radio frequency signal switching transmission is completed.

As shown in fig. 1 and 2, during test assembly, auxiliary installation is performed on the bottom of the feed adapter structure 2 through the guide pin 22, and during repair disassembly, auxiliary disassembly is performed by pressing a plurality of (for example, two) process screws 11 through the process holes 25 on the block 21 of the feed adapter structure against the water cooling plate 3. Therefore, through the matching of the guide pin 22 and the technical screw 11, the condition of uneven force application in installation and disassembly caused by too many channels and too much insertion and extraction force is avoided, and the reliability of design is improved.

As shown in fig. 4, the water-cooling plate 3 adopts a two-inlet two-outlet two-channel circulation heat dissipation manner, four self-sealing water connectors 32 are symmetrically arranged around the water-cooling plate 3, two sealing water connectors 32 are distributed on each channel, namely a water inlet connector and a water outlet connector, and the water inlet connector and the water outlet connector are adjacently arranged; the double channels have four sealing water connectors. The cooling water takes away heat through the internal flow channels parallel to the directions of all the soaking plates 4, and avoids the channel 31 crossing the KK connector and the technical screw hole 11.

The sealed water swivel of every passageway contains a water supply connector and a water swivel, takes away the subassembly heat fast through two binary channels recirculated cooling water that advance two, has guaranteed effectively that the heat is even to be taken away through the flow of two binary channels recirculated cooling water promptly.

In conclusion, the whole switching cooling structure adopts an up-down stacking installation mode, is used for a feed switching structure connected between an antenna array surface and a T/R assembly channel, mainly comprises different cutting blocks, and greatly improves the installation and maintenance efficiency; according to the invention, one end of the KK switching connector is connected with the radio frequency connector at the bottom of the feed switching structure, and the other end of the KK switching connector passes through the hole of the water cooling plate channel and is connected with the T/R component channel, so that switching transmission of radio frequency signals is ensured; the integrated soaking plate insertion structure and the installation arrangement of the two-inlet and two-outlet water cooling plates can effectively improve the uniform heat dissipation capacity of the whole phased array system, and the structure is compact.

While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.