Ultra-multiple channel transmit-receive antenna array forming process

Abstract

The application provides a super multi-channel transceiving antenna array forming process and relates to the technical field of antenna array forming. In the embodiment of the application, the connector and the solder ring are precisely positioned in the connector mounting hole of the reflecting plate through an elastic tool, and then are integrally welded in a vacuum gas phase furnace, so that high-precision welding of the connector and the reflecting plate is realized; and the elastic tool elastically presses the connector through a spring pressing rod, so that deformation or even damage of the reflecting plate or the connector caused by excessive pressing is avoided; the multi-channel transceiving assembly is slowly and uniformly pressed through a loading tool, so that the multi-channel transceiving assembly is ensured to be installed in place, and damage of the reflecting plate, the connector and the multi-channel transceiving assembly in the assembly process is avoided.

Description

Technical Field

[0001] This invention relates to the field of antenna array forming technology, and more specifically to a forming process for a multi-channel transceiver antenna array. Background Technology

[0002] With the development of phased array radar technology, multi-channel transceiver antennas are receiving increasing attention, showing a trend of increasing number of channels and higher frequency bands. Furthermore, the amplitude and phase consistency and stability requirements between channels are high, which puts forward higher requirements for the forming process of multi-channel transceiver antennas.

[0003] In the traditional multi-channel antenna array forming process, the antenna vibrator is screwed to the front face of the reflector, and the rear face of the reflector is integrally welded to the connector. The reflector with the connector welded on is then blindly paired with the multi-channel transceiver assembly.

[0004] However, as the number of channels in antenna arrays increases, traditional forming processes are finding it increasingly difficult to meet the requirements for forming ultra-high-channel transceiver antenna arrays; specifically, this is reflected in:

[0005] The reflector needs to be successfully soldered to a large number of connectors in one go, which is very difficult. Traditional soldering processes use hot plate welding or low-temperature vacuum brazing, which results in serious solder overflow and problems such as incomplete soldering and low welding precision.

[0006] Multi-channel transceiver components require high installation precision. Traditional blind fitting methods, which involve pressing the components with screws that cannot be easily removed from both sides, can easily damage the connectors and make it difficult to install the transceiver components properly. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a forming process for a multi-channel transceiver antenna array, which solves the problems of poor connector soldering and poor installation of multi-channel transceiver components in the forming process of multi-channel transceiver antenna arrays.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A forming process for a multi-channel transceiver antenna array, the forming process comprising the following steps:

[0012] S1, Connector soldering

[0013] Solder rings and connectors are placed sequentially into the connector mounting holes of the reflector, and then the connectors are positioned and elastically pressed using a flexible tool.

[0014] The reflector plate with the solder ring and connector loaded, along with the elastic fixture, is placed into the vacuum gas phase furnace for integrated welding. After welding is completed, the elastic fixture is removed.

[0015] S2, Antenna element installation

[0016] The antenna element is threadedly connected to the reflector.

[0017] S3, Multi-channel transceiver assembly

[0018] The reflector is placed inside the antenna frame, and the multi-channel transceiver assembly is inserted along the guide rail on the inner wall of the antenna frame. The multi-channel transceiver assembly is evenly pressed using a loading fixture to achieve the insertion of the multi-channel transceiver assembly into the connector and the pin connection with the reflector.

[0019] The reflector is provided with several first pin holes on both sides and several connector mounting holes and vibrator mounting holes in the middle.

[0020] The elastic tooling is provided with spring bars corresponding to the connector mounting holes and second pin holes corresponding to the first pin holes; the second pin holes are aligned with the first pin holes and fixed by pins, and the spring bars elastically press the connector.

[0021] The loading fixture includes: a bracket, a support rod, a slide rod, a U-shaped pressure block, and a flexible pad;

[0022] The support rod is fixed above the antenna frame by a bracket. The slide rod is slidably connected to the support rod. The U-shaped pressure block is inverted on the slide rod. The slide rod is provided with an upwardly extending screw. The screw passes through the U-shaped pressure block and is threadedly connected to a nut. A return spring is provided between the slide rod and the U-shaped pressure block. A flexible pad is provided at the bottom of the U-shaped pressure block.

[0023] Preferably, after the multi-channel transceiver assembly is assembled, both sides of the multi-channel transceiver assembly are fixed to the antenna frame with screws.

[0024] Preferably, the solder ring is a Sn63Pb37 solder ring.

[0025] Preferably, the multi-channel transceiver assembly is provided with a positioning pin corresponding to the first pin hole.

[0026] Preferably, the positioning pin has an accuracy requirement of no more than 0.03 mm.

[0027] Preferably, the dimensions of the multi-channel transceiver assembly are 485mm × 150mm × 12.5mm.

[0028] Preferably, the multi-channel transceiver assembly is provided with blind mating holes corresponding to the connectors. Precision CNC machining technology is used to ensure the assembly accuracy of the blind mating holes. After rough machining, the housing of the multi-channel transceiver assembly is heat-leveled to ensure that the flatness of the large surface is no more than 0.03mm.

[0029] Preferably, the multi-channel transceiver assembly is laser-sealed, and after the multi-channel transceiver assembly is sealed, the deformation is corrected by applying an appropriate amount of excessive pressure to ensure that the flatness of the large surface of the multi-channel transceiver assembly is no more than 0.05mm.

[0030] (III) Beneficial Effects

[0031] This invention provides a process for forming a multi-channel transceiver antenna array. Compared with existing technologies, it has the following advantages:

[0032] In this invention, in the embodiments thereof, the connector and solder ring are precisely positioned in the connector mounting hole of the reflector plate using an elastic tooling, and then integrally welded in a vacuum gas phase furnace, achieving high-precision welding between the connector and the reflector plate; furthermore, the elastic tooling uses a spring-loaded rod to elastically press the connector, avoiding excessive pressure that could cause deformation or even damage to the reflector plate or connector; the multi-channel transceiver assembly is slowly and evenly pressurized by a loading tooling, ensuring that the multi-channel transceiver assembly is installed in place, and preventing damage to the reflector plate, connector, and multi-channel transceiver assembly during assembly. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a top-view isometric view of the flexible tooling in an embodiment of the present invention;

[0035] Figure 2 This is a bottom-view isometric view of the flexible tooling in an embodiment of the present invention;

[0036] Figure 3 This is a cross-sectional view of the elastic tooling in an embodiment of the present invention;

[0037] Figure 4 for Figure 3 The large image at point A in the middle;

[0038] Figure 5 This is a schematic diagram of the connector structure in an embodiment of the present invention;

[0039] Figure 6This is a schematic diagram of the structure of the multi-channel transceiver component in an embodiment of the present invention;

[0040] Figure 7 This is an isometric view of the multi-channel transceiver assembly with tooling loaded in an embodiment of the present invention;

[0041] Figure 8 This is a top view of the multi-channel transceiver assembly with the loading fixture in an embodiment of the present invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] This application provides a forming process for a multi-channel transceiver antenna array, which solves the problems of poor connector soldering effect and poor installation effect of multi-channel transceiver components in the forming process of multi-channel transceiver antenna arrays.

[0044] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0045] In this embodiment of the invention, the connector and solder ring are precisely positioned within the connector mounting hole of the reflector using an elastic fixture, and then integrally welded in a vacuum gas phase furnace, achieving high-precision welding between the connector and the reflector. Furthermore, the elastic fixture uses a spring-loaded rod to elastically press the connector, preventing excessive pressure that could deform or damage the reflector or connector. The multi-channel transceiver assembly is slowly and evenly pressurized using a loading fixture, ensuring proper installation and preventing damage to the reflector, connector, and multi-channel transceiver assembly during assembly.

[0046] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0047] Example:

[0048] like Figures 1 to 8 As shown, the present invention provides a forming process for a multi-channel transceiver antenna array, the forming process comprising the following steps:

[0049] S1, Connector soldering

[0050] A solder ring and a connector 20 are sequentially placed in the connector mounting hole 11 of the reflector 10, and then the connector 20 is positioned and elastically pressed by the elastic tooling 30.

[0051] The reflector plate 10, which is loaded with solder ring and connector 20, together with the elastic fixture 30, is placed into a vacuum gas phase furnace for integrated welding. After welding is completed, the elastic fixture 30 is removed.

[0052] S2, Antenna element installation

[0053] The antenna element is threadedly connected to the reflector plate 10;

[0054] S3, Multi-channel transceiver assembly

[0055] The reflector 10 is placed inside the antenna frame 40. The multi-channel transceiver assembly 50 is inserted along the guide rail 41 on the inner wall of the antenna frame 40. The loading fixture 60 applies pressure evenly to the multi-channel transceiver assembly 50 to achieve the insertion of the multi-channel transceiver assembly 50 into the connector 20 and the pin connection with the reflector 10.

[0056] The reflector plate 10 has several first pin holes 12 on both sides and several connector mounting holes 11 and vibrator mounting holes 13 in the middle.

[0057] The elastic tooling 30 is provided with spring rods 31 corresponding one-to-one with the connector mounting holes 11, and second pin holes 32 corresponding one-to-one with the first pin holes 12. The second pin holes 32 are aligned with the first pin holes 12 and fixed by pins, realizing the positioning and installation of the elastic tooling 30 and the reflector plate 10. The spring rods 31 elastically press the connector 20 to ensure the accurate positioning of the connector 20 and the solder ring, and avoid excessive pressing that could cause deformation or even damage to the reflector plate 10 or the connector 20. The reflector plate 10, the solder ring and the connector 20, which are accurately positioned by the elastic tooling 30, are integrally welded in a vacuum gas phase furnace with high welding precision.

[0058] The loading fixture 60 includes: a bracket 61, a support rod 62, a slide rod 63, a U-shaped pressure block 64, and a flexible pad 65;

[0059] The support rod 62 is fixed above the antenna frame 40 by the bracket 61. The slide rod 63 is slidably connected to the support rod 62. The U-shaped pressure block 64 is inverted on the slide rod 63. The slide rod 63 is provided with an upwardly extending screw. The screw passes through the U-shaped pressure block 64 and is threadedly connected to the nut. A return spring is provided between the slide rod 63 and the U-shaped pressure block 64. The flexible pad 65 is provided at the bottom of the U-shaped pressure block 64. During the operation of the loading fixture 60, the slide rod 63 slides to directly above the multi-channel transceiver assembly 50 to be loaded. By tightening the nut, the U-shaped pressure block 64 is driven to press down, so that the flexible pad 65 slowly and evenly applies pressure to the multi-channel transceiver assembly 50. This ensures that the multi-channel transceiver assembly 50 is subjected to slow and even force during assembly, and avoids damage to the reflector 10, connector 20 and multi-channel transceiver assembly 50 during assembly.

[0060] After the multi-channel transceiver assembly 50 is assembled, both sides of the multi-channel transceiver assembly 50 are fixed to the antenna frame 40 with screws.

[0061] The solder ring is made of Sn63Pb37 solder ring.

[0062] The multi-channel transceiver assembly 50 is provided with a positioning pin 51 corresponding to the first pin hole 12.

[0063] The accuracy requirement for the positioning pin is no greater than 0.03mm.

[0064] The multi-channel transceiver assembly 50 has external dimensions of 485mm × 150mm × 12.5mm.

[0065] The multi-channel transceiver assembly 50 is provided with blind mating holes corresponding to the connector 20. Precision CNC machining technology is used to ensure the assembly accuracy of the blind mating holes. After rough machining, the housing of the multi-channel transceiver assembly 50 is heat-leveled to ensure that the flatness of the large surface is no more than 0.03mm.

[0066] The multi-channel transceiver component 50 is laser-sealed. To prevent deformation of the multi-channel transceiver component 50 after sealing from affecting blind mating with the connector 20, an appropriate amount of excessive pressure is applied to correct the deformation, prevent springback after correction, and ensure that the flatness of the large surface of the multi-channel transceiver component 50 is no more than 0.05mm.

[0067] The bracket 61, support rod 62, slide rod 63, U-shaped pressure block 64, screw, return spring, and nut are made of stainless steel, aluminum alloy, or copper alloy.

[0068] The flexible pad 65 is made of materials such as polytetrafluoroethylene or polyimide.

[0069] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0070] In this embodiment of the invention, the connector and solder ring are precisely positioned in the connector mounting hole of the reflector plate using an elastic fixture, and then integrated and welded in a vacuum gas phase furnace, achieving high-precision welding between the connector and the reflector plate. Furthermore, the elastic fixture uses a spring-loaded rod to elastically press the connector, avoiding excessive pressure that could cause deformation or even damage to the reflector plate or connector. The multi-channel transceiver assembly is slowly and evenly pressurized by a loading fixture, ensuring that the multi-channel transceiver assembly is installed in place and preventing damage to the reflector plate, connector, and multi-channel transceiver assembly during assembly.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A process for forming a multi-channel transceiver antenna array, characterized in that, The forming process includes the following steps: S1, Connector soldering A solder ring and a connector (20) are placed in sequence in the connector mounting hole (11) of the reflector (10), and then the connector (20) is positioned and elastically pressed by the elastic tool (30); The reflector plate (10) loaded with solder ring and connector (20) is placed into the vacuum gas phase furnace together with the elastic fixture (30) for integrated welding. After welding is completed, the elastic fixture (30) is removed. S2, Antenna element installation The antenna element is threadedly connected to the reflector (10); S3, Multi-channel transceiver assembly The reflector (10) is placed inside the antenna frame (40), and the multi-channel transceiver assembly (50) is inserted along the guide rail (41) on the inner wall of the antenna frame (40). The multi-channel transceiver assembly (50) is uniformly pressed by the loading fixture (60) to realize the insertion of the multi-channel transceiver assembly (50) with the connector (20) and the pin connection with the reflector (10). The reflector (10) has several first pin holes (12) on both sides and several connector mounting holes (11) and vibrator mounting holes (13) in the middle. The elastic tooling (30) is provided with spring rods (31) corresponding to the connector mounting holes (11) and second pin holes (32) corresponding to the first pin holes (12); the second pin holes (32) are aligned with the first pin holes (12) and fixed by pins, and the spring rods (31) elastically press the connector (20); The loading fixture (60) includes: a bracket (61), a support rod (62), a slide rod (63), a U-shaped pressure block (64), and a flexible pad (65). The support rod (62) is fixed above the antenna frame (40) by the bracket (61). The slide rod (63) is slidably connected to the support rod (62). The U-shaped pressure block (64) is upside down on the slide rod (63). The slide rod (63) is provided with an upwardly extending screw. The screw passes through the U-shaped pressure block (64) and is threadedly connected to the nut. A return spring is provided between the slide rod (63) and the U-shaped pressure block (64). A flexible pad (65) is provided at the bottom of the U-shaped pressure block (64). The multi-channel transceiver assembly (50) is provided with blind mating holes corresponding to the connector (20). Precision CNC machining technology is used to ensure the assembly accuracy of the blind mating holes. After rough machining, the housing of the multi-channel transceiver assembly (50) is heat-leveled to ensure that the flatness of the large surface is no more than 0.03mm. The multi-channel transceiver assembly (50) is laser-sealed. After the multi-channel transceiver assembly (50) is sealed, the deformation is corrected by applying an appropriate amount of excessive pressure to ensure that the flatness of the large surface of the multi-channel transceiver assembly (50) is not greater than 0.05mm.

2. The multi-channel transceiver antenna array forming process as described in claim 1, characterized in that, After the multi-channel transceiver assembly (50) is assembled, both sides of the multi-channel transceiver assembly (50) are fixed to the antenna frame (40) by screws.

3. The multi-channel transceiver antenna array forming process as described in claim 1, characterized in that, The solder ring is made of Sn63Pb37 solder ring.

4. The multi-channel transceiver antenna array forming process as described in claim 1, characterized in that, The multi-channel transceiver assembly (50) is provided with a positioning pin (51) corresponding to the first pin hole (12).

5. The multi-channel transceiver antenna array forming process as described in claim 4, characterized in that, The accuracy requirement for the positioning pin is no greater than 0.03mm.

6. The multi-channel transceiver antenna array forming process as described in claim 1, characterized in that, The multi-channel transceiver assembly (50) has external dimensions of 485mm × 150mm × 12.5mm.

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