High-integration blade type three-dimensional laminated subarray skeleton structure

Abstract

The invention discloses a high-integration blade type three-dimensional laminated subarray skeleton structure, which comprises a rear-end cold plate assembly and a front-end cold plate assembly, and is characterized in that the rear-end cold plate assembly is internally provided with a first cooling flow channel, and the front-end cold plate assembly is internally provided with a second cooling flow channel communicated with the first cooling flow channel, and the invention relates to the technical field of phased array radars. According to the high-integration blade type three-dimensional laminated sub-array framework structure, the assembling grooves are reserved in the rear-end cold plate assembly, convenience is provided for installation of the sensing modules, meanwhile, a reliable guarantee is provided for heat dissipation and cooling of the sensing modules through the first cooling flow channels, the front-end cold plate assembly and a plurality of wedge block pressing assemblies are arranged in a matched mode, and the assembly efficiency is improved. The second cooling flow channel is constructed and communicated with the first cooling flow channel while convenient conditions are provided for assembly and disassembly of the TR assembly, the requirements for high-precision positioning, convenient installation, reliable interconnection and efficient heat dissipation of all modules are met, and the TR module has the advantage of being high in integration degree.

Description

Technical Field

[0001] The present invention relates to the technical field of phased array radars, and in particular to a highly integrated blade-type three-dimensional laminated sub-array skeleton structure. Background Art

[0002] As the detection range of phased array radar continues to increase, the antenna array aperture and single-channel power also need to be continuously increased. However, as the radar operating frequency increases and the array scanning angle increases, the spacing between its array units becomes smaller and smaller, and the equipment inside the antenna array develops from a single functional module combination to a multi-functional, highly integrated, scalable, lightweight, and integrated direction.

[0003] As an integrated component unit of the phased array, the active sub-array integrates one or several electronic array array units with TR components, power division networks, wave control, power supplies and other equipment to form an array module. It has a complete structure and can be debugged independently, serving as a basic replaceable unit of the array surface.

[0004] The subarray skeleton in the active subarray is the key to the active subarray structural design and determines the specific architectural form of the subarray. The subarray skeleton provides installation space and support for the active subarray, and also provides an evacuation channel for the large amount of heat in the active subarray. There are many modules inside the active subarray, and the interconnection relationship is complex. Each module has different heat dissipation requirements, and all modules need to be installed, positioned and cooled through the skeleton. At the same time, the installation and positioning of the active subarray in the array surface also depends on the subarray skeleton, so the subarray skeleton is a high-precision complex structural part.

[0005] Common sub-array skeletons include brick-type, blade-type, and tile-type architectures. The brick-type generally uses multiple layers of cold plates in parallel, the blade-type uses a single-layer cold plate plate structure, and the tile-type uses a stacked structure. Among them, the brick-type architecture is suitable for scenarios with few back-end modules and array components at the front end, the blade-type architecture is suitable for scenarios with large unit spacing and ample space, and the tile-type architecture is suitable for chip-type array surfaces. However, the heat dissipation of each stacked module is complex. Therefore, there is an urgent need for a high-channel-density, highly integrated, integrated, and scalable active sub-array skeleton architecture. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a highly integrated blade-type three-dimensional stacked sub-array skeleton structure, which solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a highly integrated blade-type three-dimensional stacked sub-array skeleton structure, including a rear-end cold plate assembly and a front-end cold plate assembly, the front-end cold plate assembly is fixedly installed at the front end of the rear-end cold plate assembly, a first cooling channel is opened inside the rear-end cold plate assembly, a second cooling channel is opened inside the front-end cold plate assembly, and the first cooling channel and the second cooling channel are connected.

[0008] The present invention is further configured as follows: the rear end cold plate assembly includes a skeleton blank, the top and bottom of the skeleton blank are provided with a plurality of assembly grooves, and an electromagnetic shielding cover plate adapted to the assembly grooves is fixedly installed on the surface of the skeleton blank by bolts.

[0009] The present invention is further configured as follows: the first cooling channel includes two groups of butt-joint channels, the butt-joint channels are arranged on the periphery of the assembly groove and are opened in the skeleton blank; A plurality of guide grooves are staggeredly provided on the front and rear sides of the top of the skeleton blank, a plurality of longitudinal flow channels connected to the front and rear guide grooves are provided on the back of the skeleton blank, and the guide grooves and the longitudinal flow channels are connected in sequence, and a cover is fixedly installed on the top of the inner cavity of the guide groove; The two groups of docking flow channels are respectively arranged on both sides of a plurality of guide grooves, and the two groups of docking flow channels are respectively connected with the leftmost and rightmost guide grooves.

[0010] The present invention is further configured as follows: water joints communicating with the docking flow channel are respectively fixedly installed on both sides of the front side of the skeleton blank; Both sides of the front side of the skeleton blank are fixedly mounted with docking frames.

[0011] The present invention is further configured as follows: the front-end cold plate assembly comprises two bottom plates, two first fixing plates and two second fixing plates, both sides of the bottom plates are provided with grooves adapted to the first fixing plates, and bumps are fixedly installed inside the grooves, a through groove adapted to the bumps is provided on the surface of the first fixing plates, and the first fixing plates and the bottom plates are fixedly connected by screws; The front parts of both sides of the bottom plate are provided with convex grooves adapted to the second fixing plate, and the second fixing plate and the bottom plate are fixedly connected by screws; The two butt joint frames are provided with mounting grooves matched with the first fixing plate on the opposite sides thereof.

[0012] The present invention is further configured as follows: the second cooling flow channel includes two end flow channels and a plurality of transverse flow channels, the two end flow channels are respectively opened on the left and right sides of the front side of the bottom plate, the left and right sides of the bottom plate are both opened with processing grooves connected to the end flow channels, a plurality of transverse flow channels are arranged in parallel between the two end flow channels, and are evenly spaced and opened between the two processing grooves, and the surface of the bottom plate is opened with water holes connected to the end flow channels; A first labyrinth plate and a second labyrinth plate are respectively embedded and fixed in the two processing grooves, wherein the first labyrinth plate has a first reserved flow channel connected to an end flow channel and one end of a plurality of transverse flow channels, and the second labyrinth plate has a second reserved flow channel connected to the other end flow channel and the other end of a transverse flow channel; The first reserved flow channel and the second reserved flow channel are used to cooperate with the first labyrinth plate and the second labyrinth plate to connect a plurality of transverse flow channels in sequence, and to make the connecting paths in an S-shaped series; The top and bottom of the docking frame are both provided with water heads communicated with the docking flow channel, and the inner surface of the water hole is used in coordination with the outer surface of the water head.

[0013] The present invention is further configured as follows: a plurality of wedge block clamping assemblies are fixedly installed on the top and bottom of the base plate, the wedge block clamping assembly includes a mounting seat, wedge blocks are slidably installed on the front and rear sides of the top of the mounting seat, screw rods are penetrated and threadedly installed on the surfaces of the two wedge blocks, and the threads of the two screw rods are opened in opposite directions, and the opposite ends of the two screw rods are fixedly connected, the mounting seat is fixedly installed on the surface of the base plate, and a plug-in rack is fixedly installed on the side of the mounting seat away from the base plate, the plug-in rack is arranged on the outer periphery of the screw rod, and an isosceles trapezoidal plate is sleeved and slidably installed on the outer periphery top of the plug-in rack, and the two inclined surfaces of the isosceles trapezoidal plate are respectively used in conjunction with the inclined surfaces of the two wedge blocks; A screw cap is fixedly mounted on the front end of the screw rod.

[0014] The present invention is further configured such that a shielding pad is fixedly mounted on one side of the electromagnetic shielding cover plate.

[0015] The present invention provides a highly integrated blade-type three-dimensional stacked sub-array skeleton structure. It has the following beneficial effects: The present invention provides convenience for the installation of the sensor module by reserving an assembly groove in the rear end cold plate assembly, and at the same time uses the first cooling channel to provide reliable guarantee for the heat dissipation and temperature reduction of each sensor module. In conjunction with the setting of the front end cold plate assembly and a plurality of wedge clamping assemblies, convenient conditions for the assembly and disassembly of the TR assembly are provided, and a second cooling channel is constructed and connected with the first cooling channel, thereby meeting the requirements of high-precision positioning, convenient installation, reliable interconnection and efficient heat dissipation of each module, and has the advantage of high integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the external structure of the present invention from a rear side perspective; Figure 3 It is a schematic diagram of the structure of the skeleton blank and the first cooling channel of the present invention; Figure 4 It is a schematic diagram of the structure of the bottom plate and the second cooling channel of the present invention; Figure 5 It is a schematic diagram of the connection between the electromagnetic shielding cover plate and the shielding pad structure of the present invention; Figure 6It is a schematic diagram of the connection of the bottom plate, the wedge block pressing assembly, the first fixing plate, the second fixing plate and the docking frame structure of the present invention; Figure 7 It is a structural schematic diagram of the wedge clamping assembly, the first fixing plate, the second fixing plate and the docking frame of the present invention; Figure 8 is a schematic structural diagram of the second cooling channel of the present invention; Fig. 9 It is a structural schematic diagram of the wedge block pressing assembly of the present invention; Fig.10 It is a schematic structural diagram of the screw rod, the inserting frame and the isosceles trapezoidal plate of the present invention.

[0017] In the figure: 1. Rear cold plate assembly; 101. Frame blank; 102. Assembly slot; 103. Electromagnetic shielding cover; 104. Docking frame; 105. Water head; 106. Shielding pad; 107. Water joint; 2. Front cold plate assembly; 201. Bottom plate; 202. First fixing plate; 203. Second fixing plate; 204. Groove; 205. Protrusion; 206. Through groove; 207. Mounting groove; 208. Protrusion groove; 3. First cooling channel; 301. Butt channel; 302. Guide groove; 303. Longitudinal channel; 304. Cover; 4. Second cooling channel; 401. End channel; 402. Transverse channel; 403. Processing groove; 404. Water hole; 405. First labyrinth plate; 406. Second labyrinth plate; 407. First reserved channel; 408. Second reserved channel; 5. Wedge block clamping assembly; 501. Mounting seat; 502. Wedge block; 503. Screw rod; 504. Plug rack; 505. Isosceles trapezoidal plate; 506. Screw cap. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-10 The embodiment of the present invention provides the following technical solution: a highly integrated blade-type three-dimensional stacked sub-array skeleton structure, comprising: The rear end cold plate assembly 1 comprises a skeleton blank 101, a plurality of assembly grooves 102 are provided on the top and the bottom of the skeleton blank 101, and an electromagnetic shielding cover plate 103 adapted to the assembly groove 102 is fixedly installed on the surface of the skeleton blank 101 by bolts, a shielding pad 106 is fixedly installed on one side of the electromagnetic shielding cover plate 103, and an electromagnetic shielding coating is applied inside the shielding pad 106 to ensure its electromagnetic shielding performance. It is further explained that after the module is installed by using the assembly groove 102, in order to ensure the effective heat dissipation of the module, a first cooling channel 3 is processed in the interior of the skeleton blank 101 by deep hole drilling. Specifically, the first cooling channel 3 comprises two sets of docking channels 301, and the docking channels 301 are arranged on the periphery of the assembly groove 102, and And it is opened in the skeleton blank 101, and water joints 107 connected to the docking channel 301 are fixedly installed on both sides of the front side of the skeleton blank 101, and a plurality of guide grooves 302 are staggered on the front and rear sides of the top of the skeleton blank 101. A plurality of longitudinal flow channels 303 connected to the front and rear guide grooves 302 are opened on the back of the skeleton blank 101, and the guide grooves 302 and the longitudinal flow channels 303 are connected in sequence. A cover 304 is also fixedly installed on the top of the inner cavity of the guide groove 302. To ensure the sealing effect, the cover 304 is welded and fixed by electron beam welding. The two groups of docking flow channels 301 are respectively arranged on both sides of the plurality of guide grooves 302, and the two groups of docking flow channels 301 are respectively connected to the leftmost and rightmost guide grooves 302.

[0020] As a detailed description, after the docking flow channel 301 is processed by deep hole drilling, the exposed holes on the surface of the skeleton blank 101 are sealed by electron beam welding plugs.

[0021] As a preferred solution, in order to achieve high integration, docking frames 104 are fixedly installed on both sides of the front side of the skeleton blank 101, and the front end cold plate assembly 2 is fixedly installed through the two docking frames 104. Specifically, the front end cold plate assembly 2 includes two base plates 201, two first fixed plates 202 and two second fixed plates 203. Both sides of the base plate 201 are provided with grooves 204 that are compatible with the first fixed plates 202, and the inside of the grooves 204 is fixedly installed with protrusions 205. The surface of the first fixed plate 202 is provided with through grooves 206 that are compatible with the protrusions 205, and the first fixed plate 202 and the base plate 201 are fixedly connected by screws. The front parts of both sides of the base plate 201 are provided with convex head grooves 208 that are compatible with the second fixed plates 203, and the second fixed plates 203 and the base plate 201 are fixedly connected by screws. The opposite sides of the two docking frames 104 are provided with mounting grooves 207 that are compatible with the first fixed plates 202.

[0022] As a preferred solution, in order to realize convenient disassembly and assembly of the TR component in the base plate 201, a plurality of wedge clamping assemblies 5 are fixedly installed on the top and bottom of the base plate 201. The wedge clamping assembly 5 includes a mounting seat 501, and wedge blocks 502 are slidably installed on the front and rear sides of the top of the mounting seat 501. The surfaces of the two wedge blocks 502 are penetrated and threadedly installed with screw rods 503, and the threads of the two screw rods 503 are opened in opposite directions. The front end of the screw rod 503 arranged at the front end is fixedly installed with a screw cap 506, and the opposite ends of the two screw rods 503 are fixedly connected. The mounting seat 501 is fixedly installed on the surface of the base plate 201, and a plug-in rack 504 is fixedly installed on the side of the mounting seat 501 away from the base plate 201. The plug-in rack 504 is arranged on the outer periphery of the screw rod 503, and an isosceles trapezoidal plate 505 is sleeved and slidably installed on the outer periphery top of the plug-in rack 504, and the two inclined surfaces of the isosceles trapezoidal plate 505 are respectively used in conjunction with the inclined surfaces of the two wedge blocks 502.

[0023] As a preferred solution, in order to achieve uniform and effective cooling of the TR component, a second cooling channel 4 is opened in the bottom plate 201, and the second cooling channel 4 includes two end channels 401 and a plurality of transverse channels 402. The two end channels 401 are respectively opened on the left and right sides of the front of the bottom plate 201. For the end channels 401, the exposed part on the front of the bottom plate 201 is sealed by electron beam welding plugs. The left and right sides of the bottom plate 201 are opened with processing grooves 403 connected to the end channels 401. A plurality of transverse channels 402 are arranged in parallel between the two end channels 401 and are evenly spaced and opened between the two processing grooves 403. The surface of the bottom plate 201 is opened with water holes 404 connected to the end channels 401. The top and bottom of the docking frame 104 are opened with water heads 10 connected to the docking channel 301. 5, and the inner surface of the water hole 404 is used in conjunction with the outer surface of the water head 105, wherein, after the water hole 404 is sleeved on the water head 105, the exposed part of the water hole 404 is sealed by electron beam welding of a plug, and the first labyrinth plate 405 and the second labyrinth plate 406 are respectively embedded and fixed in the two processing grooves 403, and the first labyrinth plate 405 is provided with a first reserved flow channel 407 connected with one end flow channel 401 and one end of a plurality of transverse flow channels 402, and the second labyrinth plate 406 is provided with a second reserved flow channel 408 connected with the other end flow channel 401 and the other end of a transverse flow channel 402, and the first reserved flow channel 407 and the second reserved flow channel 408 are used to cooperate with the first labyrinth plate 405 and the second labyrinth plate 406 to connect the plurality of transverse flow channels 402 in sequence, and make the connecting paths in an S-shaped series.

[0024] After assembling each module in the assembly groove 102, install the electromagnetic shielding cover 103 to ensure the good electromagnetic shielding effect of the rear end cold plate assembly 1, and then place the two base plates 201 on the two docking frames 104 respectively, and make the water hole 404 cover the water head 105, and then cover the through groove 206 of the first fixed plate 202 on the two protrusions 205 on the same side, tighten the screws, and complete the fixation of the first fixed plate 202 to the two base plates 201 and the docking frame 104, and then assemble the second fixed plate 203 along the protrusion groove 208, and use screws to fix the second fixed plate 203 to the two base plates 201 and the docking frame 104 to complete the assembly of the front end cold plate assembly 2.

[0025] Place the TR assembly between the two bottom plates 201 so that the TR assembly falls between the two isosceles trapezoidal plates in the vertical direction, tighten the screw cap 506, the screw cap 506 drives the screw rod 503 to rotate, the screw rod 503 drives the two wedge blocks 502 to move closer, the wedge blocks 502 squeeze the isosceles trapezoidal plates 505 and move along the bracket 504 away from the bottom plate 201, squeeze and fix the TR assembly, and complete the assembly of the TR assembly.

[0026] During heat dissipation, the cooling medium enters the docking flow channel 301 through a water head 105, and part of the cooling medium directly enters the guide groove 302, flows along the longitudinal flow channel 303 to another guide groove 302, and finally flows into another docking flow channel 301, and flows out from another water head 105; Another part of the cooling medium enters an end flow channel 401 through the water joint 107 and the water hole 404, and with the cooperation of several transverse flow channels 402, the first labyrinth plate 405, the first reserved flow channel 407, the second labyrinth plate 406 and the second reserved flow channel 408, flows in an S shape in the bottom plate 201, and then enters another docking flow channel 301 through the other end flow channel 401.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly integrated blade-type three-dimensional stacked sub-array skeleton structure, characterized in that: The invention comprises a rear end cold plate assembly (1) and a front end cold plate assembly (2), wherein the front end cold plate assembly (2) is fixedly mounted at the front end of the rear end cold plate assembly (1), a first cooling channel (3) is provided inside the rear end cold plate assembly (1), a second cooling channel (4) is provided inside the front end cold plate assembly (2), and the first cooling channel and the second cooling channel (4) are connected.

2. According to claim 1, a highly integrated blade-type three-dimensional stacked sub-array skeleton structure is characterized by: The rear end cold plate assembly (1) comprises a skeleton blank (101), the top and bottom of the skeleton blank (101) are provided with a plurality of assembly slots (102), and an electromagnetic shielding cover plate (103) adapted to the assembly slots (102) is also fixedly mounted on the surface of the skeleton blank (101) by bolts.

3. The highly integrated blade-type three-dimensional stacked sub-array skeleton structure according to claim 2 is characterized in that: The first cooling flow channel (3) comprises two groups of docking flow channels (301), wherein the docking flow channels (301) are arranged on the periphery of the assembly groove (102) and are opened in the skeleton blank (101); A plurality of guide grooves (302) are staggeredly provided on the front and rear sides of the top of the skeleton blank (101); a plurality of longitudinal flow channels (303) connected to the front and rear guide grooves (302) are provided on the back of the skeleton blank (101); the guide grooves (302) and the longitudinal flow channels (303) are connected in sequence; and a cover (304) is fixedly installed on the top of the inner cavity of the guide groove (302); The two groups of docking flow channels (301) are respectively arranged on both sides of the plurality of guide grooves (302), and the two groups of docking flow channels (301) are respectively connected to the leftmost and rightmost guide grooves (302).

4. The highly integrated blade-type three-dimensional stacked sub-array skeleton structure according to claim 3 is characterized by: Water joints (107) communicating with the docking flow channel (301) are respectively fixedly mounted on both sides of the front side of the skeleton blank (101); Docking frames (104) are fixedly mounted on both sides of the front side of the skeleton blank (101).

5. The highly integrated blade-type three-dimensional stacked sub-array skeleton structure according to claim 4 is characterized in that: The front-end cold plate assembly (2) comprises two bottom plates (201), two first fixing plates (202) and two second fixing plates (203); grooves (204) matching the first fixing plates (202) are provided on both sides of the bottom plate (201); and bumps (205) are fixedly installed inside the grooves (204); a through groove (206) matching the bumps (205) is provided on the surface of the first fixing plates (202); and the first fixing plates (202) and the bottom plates (201) are fixedly connected by screws; The front parts of both sides of the bottom plate (201) are provided with convex grooves (208) adapted to the second fixing plate (203), and the second fixing plate (203) and the bottom plate (201) are fixedly connected by screws; The two opposite sides of the two docking frames (104) are each provided with a mounting groove (207) adapted to the first fixing plate (202).

6. The highly integrated blade-type three-dimensional stacked sub-array skeleton structure according to claim 5, characterized in that: The second cooling flow channel (4) comprises two end flow channels (401) and a plurality of transverse flow channels (402); the two end flow channels (401) are respectively provided on the left and right sides of the front surface of the bottom plate (201); the left and right sides of the bottom plate (201) are provided with machining grooves (403) connected to the end flow channels (401); the plurality of transverse flow channels (402) are arranged in parallel between the two end flow channels (401) and are evenly spaced between the two machining grooves (403); and the surface of the bottom plate (201) is provided with water holes (404) connected to the end flow channels (401); A first labyrinth plate (405) and a second labyrinth plate (406) are respectively embedded and fixed inside the two processing grooves (403); a first reserved flow channel (407) is provided inside the first labyrinth plate (405) and is connected to one end flow channel (401) and one end of a plurality of transverse flow channels (402); and a second reserved flow channel (408) is provided inside the second labyrinth plate (406) and is connected to another end flow channel (401) and the other end of a transverse flow channel (402); The first reserved flow channel (407) and the second reserved flow channel (408) are used to cooperate with the first labyrinth plate (405) and the second labyrinth plate (406) to connect the plurality of transverse flow channels (402) in sequence, and to make the connecting paths in an S-shaped series; The top and bottom of the docking frame (104) are both provided with water heads (105) that are in communication with the docking flow channel (301), and the inner surface of the water hole (404) is used in conjunction with the outer surface of the water head (105).

7. The highly integrated blade-type three-dimensional stacked sub-array skeleton structure according to claim 6 is characterized by: A plurality of wedge clamping assemblies (5) are fixedly installed on the top and bottom of the base plate (201), and the wedge clamping assemblies (5) include a mounting seat (501), and wedge blocks (502) are slidably installed on the front and rear sides of the top of the mounting seat (501), and screw rods (503) are penetrated and threadedly installed on the surfaces of the two wedge blocks (502), and the two screw rods (503) are opened in opposite directions, and the opposite ends of the two screw rods (503) are fixedly connected, and the mounting seat (501) is fixedly installed on the surface of the base plate (201), and a plug-in rack (504) is fixedly installed on the side of the mounting seat (501) away from the base plate (201), and the plug-in rack (504) is arranged on the periphery of the screw rod (503), and an isosceles trapezoidal plate (505) is sleeved and slidably installed on the top of the periphery of the plug-in rack (504), and the two inclined surfaces of the isosceles trapezoidal plate (505) are respectively used in conjunction with the inclined surfaces of the two wedge blocks (502); A screw cap (506) is fixedly mounted on the front end of the screw rod (503) arranged at the front end.

8. The highly integrated blade-type three-dimensional stacked sub-array skeleton structure according to claim 1 is characterized by: A shielding pad (106) is fixedly mounted on one side of the electromagnetic shielding cover plate (103).

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