Large-cantilever phased-array antenna heat dissipation and vibration resistance integrated structure

Abstract

The invention discloses a heat dissipation and vibration resistance integrated structure of a large-cantilever phased-array antenna. The heat dissipation and vibration resistance integrated structure comprises a mounting bottom plate, a radio frequency part and an inclined supporting part, the radio frequency part and the mounting bottom plate are arranged at a preset angle through the inclined supporting part; according to the scheme, the radio frequency part and the mounting bottom plate are arranged at the preset angle through the inclined supporting part, and in a traditional phased-array antenna scheme, the antenna array elements and the radio frequency part are often tightly connected with a mounting platform; the antenna has the advantages that the overall height of the antenna is low, and the vibration impact amplification is small; the structural form is simple, and installation is convenient; the defect is that the array element scale is possibly limited by the area of an installation platform; the antenna radiating surface is vertical to the mounting platform, and the action direction may be limited by platform mounting; according to the scheme, the radio frequency part is obliquely supported through the oblique supporting part, the scale of the array element is not limited by the size of the mounting platform, the array element can be arranged in a narrow space, and the whole design is more flexible by adjusting the outward radiation angle through the oblique supporting part during design.

Description

Technical Field

[0001] This invention relates to the field of phased array antenna technology, and in particular to an integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna. Background Technology

[0002] Electronic devices generate significant heat during operation. To ensure their normal operation and extend their service life, further improvements are needed. In fields such as communication and navigation, phased array antennas are widely used due to their beam scanning flexibility and high reliability. However, with increasing performance requirements, their design faces a triple challenge: the increasing density of array elements, the rising power consumption of a single element, and the increasing complexity of the operating environment (such as the need to balance airflow, heat dissipation, and sealing in confined airborne spaces). Existing technological solutions are insufficient to address these issues in a coordinated manner. In terms of structural design, traditional cantilever frames use local reinforcement at the root to resist moment effects, which increases weight. Furthermore, the variable stiffness design of large-span cantilever frames relies on complex stiffeners, resulting in high processing costs and difficulty in controlling assembly precision. In terms of heat dissipation design, the air-cooled structure of the low-frequency phased array needs to be connected to the outside, which compromises the airtightness. The sealed design requires the addition of independent heat dissipation modules to the internal components, which makes the system weight exceed the limit. In the compact layout of the high-frequency band, the heat dissipation layer is placed between the radio frequency and control layers. Although this improves the heat conduction efficiency, the cross-layer cable needs an independent sealed channel, which increases the structural complexity and reduces reliability. Therefore, there is an urgent need for an integrated structure that can be assembled in a confined space while simultaneously optimizing structural strength, heat dissipation efficiency, and vibration stability, in order to overcome the technical bottlenecks of existing technologies in terms of integration, reliability, and environmental adaptability. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna, addressing the aforementioned shortcomings. This solves the problems of existing technologies, such as the inability to efficiently assemble the antenna in a confined space, low structural strength, low heat dissipation efficiency, and poor stability.

[0004] This invention is achieved through the following scheme: An integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna includes a mounting base plate, a radio frequency (RF) section, and an oblique support section; the RF section is set at a predetermined angle to the mounting base plate via the oblique support section.

[0005] Based on the above-mentioned integrated structure of heat dissipation and vibration resistance of a large cantilever phased array antenna, the oblique support is discretely set into multiple groups, and the length of each group of oblique support is set differently.

[0006] Based on the above-mentioned integrated structure of heat dissipation and vibration resistance of a large cantilever phased array antenna, a cooling unit is also provided on the mounting base plate. The cooling unit is provided with a cavity that cooperates with the radio frequency section, and the radio frequency section is located in the cavity of the cooling unit.

[0007] Based on the above-mentioned integrated structure of heat dissipation and vibration resistance of a large cantilever phased array antenna, a functional module is also provided on the end face of the cooling unit away from the radio frequency part, and the functional module is fixedly connected to the cooling unit by bolts.

[0008] Based on the above-mentioned integrated structure of heat dissipation and vibration resistance of a large cantilever phased array antenna, the radio frequency unit includes an antenna array element and a signal transceiver component; the antenna array element is connected to the signal transceiver component.

[0009] Based on the above-mentioned integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna, the cooling unit adopts liquid cooling and includes a liquid cooling plate and a liquid cooling pipe. The liquid cooling pipe is embedded in the liquid cooling plate, and the surface of the liquid cooling plate is provided with an array element cavity and an accessory cavity. The antenna array element is located in the array element cavity, and the signal transceiver component is located in the accessory cavity. The back of the liquid cooling plate is also provided with a liquid cooling connector for connecting to an external liquid cooling pipeline.

[0010] Based on the above-mentioned integrated structure of heat dissipation and vibration resistance of a large cantilever phased array antenna, the mounting base is a rectangular structure. The mounting base plate is provided with mounting holes for mounting to an external mounting platform, fixing holes for mounting to a liquid cooling plate, and mating holes for connecting to the inclined support part. The inclined support part is obliquely arranged between the mounting base plate and the liquid cooling plate.

[0011] Based on the above-mentioned integrated structure of heat dissipation and vibration resistance of a large cantilever phased array antenna, the oblique support includes two parallel reinforcing ribs; one end of the reinforcing rib is connected to the mounting base plate, and the other end is connected to the liquid cooling plate back plate, so that the liquid cooling plate, the mounting base plate and the reinforcing rib form a triangular structure.

[0012] Based on the above-mentioned integrated structure of heat dissipation and vibration resistance of a large cantilever phased array antenna, the liquid cooling pipe is arranged in a cyclic bending configuration within the liquid cooling plate.

[0013] Based on the above-mentioned integrated structure of heat dissipation and vibration resistance of a large cantilever phased array antenna, the liquid cooling plate is set perpendicular to the mounting platform so that the electromagnetic wave radiation direction is parallel to the plane of the mounting platform.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1) In this solution, the radio frequency (RF) unit can be set at a predetermined angle to the mounting base via the oblique support. In traditional phased array antenna solutions, the antenna elements and RF unit are often tightly connected to the mounting platform. The advantages of this approach are that the overall antenna height is low, resulting in a small amplification due to vibration and shock, and the structure is simple and easy to install. The disadvantages are that the size of the array elements may be limited by the area of ​​the mounting platform, and the antenna radiating surface is perpendicular to the mounting platform, so the direction of action may be limited by the platform installation. In contrast, this solution uses the oblique support to obliquely support the RF unit, so the size of its array elements is not limited by the size of the mounting platform. It can be set up in a small space, and the angle of outward radiation can be adjusted during the design process through the oblique support, making the entire design more flexible. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the entire invention; Figure 2 This is a schematic diagram of the rear three-dimensional structure of the entire invention; Figure 3 This is a schematic diagram of the front three-dimensional structure of the entire invention; Figure 4 This is a schematic diagram of the liquid cooling pipe in this invention; Figure 5 This is a schematic cross-sectional view of the liquid cooling plate in this invention; Figure 6 This is a schematic diagram of the usage state of the present invention; Reference numerals: 1. Mounting base plate; 2. Radio frequency section; 3. Angled support section; 4. Functional module; 5. Liquid cooling plate; 6. Liquid cooling pipe; 7. Liquid cooling connector; 8. Reinforcing rib; 9. Mounting platform; 51. Array element cavity; 52. Accessory cavity. Detailed Implementation

[0016] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0017] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0018] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a predetermined orientation, or be constructed and operated in a predetermined orientation. Therefore, they should not be construed as limitations on this invention.

[0019] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0020] Example 1 like Figures 1-6 As shown, the present invention provides a technical solution: An integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna includes, but is not limited to, a mounting base plate 1, a radio frequency section 2, and an oblique support section 3; the radio frequency section 2 is set at a predetermined angle to the mounting base plate 1 via the oblique support section 3.

[0021] Based on the above structure, the radio frequency (RF) unit 2 in this solution can be set at a predetermined angle to the mounting base 1 via the oblique support 3. In traditional phased array antenna solutions, the antenna elements and the RF unit 2 are often tightly connected to the mounting platform 9. The advantages are that the overall height of the antenna is low, the amplification due to vibration and shock is small, and the structure is simple and easy to install. The disadvantages are that the size of the array elements may be limited by the area of ​​the mounting platform 9, and the antenna radiating surface is perpendicular to the mounting platform 9, so the direction of action may be limited by the platform installation. In this solution, the RF unit 2 is obliquely supported by the oblique support 3, so the size of its array elements is not limited by the size of the mounting platform 9. It can be set in a small space, and the angle of outward radiation can be adjusted during the design by using the oblique support 3, making the whole design more flexible.

[0022] As an example, the inclined support 3 is discretely set into multiple groups, and the length of each group of inclined support 3 is set differently; when assembling the RF unit 2, the appropriate inclined support 3 is selected according to the required installation angle so that the final formed RF angle meets the preset requirements.

[0023] As an example, a cooling unit is also provided on the mounting base plate 1, and a cavity that cooperates with the radio frequency unit 2 is provided in the cooling unit. The radio frequency unit 2 is located in the cavity of the cooling unit.

[0024] Based on the above structure, the embedded structure allows for a larger contact area between the entire RF unit 2 and the cooling unit, thereby increasing the heat dissipation efficiency of the RF unit 2.

[0025] As an example, a functional module 4 may also be provided on the end face of the cooling unit away from the radio frequency unit 2, and the functional module 4 is fixedly connected to the cooling unit by bolts.

[0026] Based on the above structure, the functional module 4 is set close to the cooling unit. The heat generated by it can be dissipated through the coolant in the liquid cooling plate 5. At the same time, the back of the liquid cooling plate 5 has a large usable area, which can be customized to install various functional modules 4 and realize the heat dissipation of these models, so that the entire functional module 4 unit can operate more stably.

[0027] As an example, the radio frequency unit 2 may include an antenna array element and a signal transceiver assembly; the antenna array element is connected to the signal transceiver assembly. Based on the above structure, the radio frequency unit 2 mainly realizes the antenna microwave transmission, reception and beam control. Its normal plane is the antenna radiation plane, which is the main embodiment of the antenna's electrical function.

[0028] As an example, the cooling unit can be cooled by liquid cooling. The cooling unit can include a liquid cooling plate 5 and a liquid cooling pipe 6. The liquid cooling pipe 6 is embedded in the liquid cooling plate 5. An array element cavity 51 and an accessory cavity 52 are provided on the surface of the liquid cooling plate 5. The antenna array element is provided in the array element cavity 51, and the signal transceiver component is provided in the accessory cavity 52. ​​A liquid cooling connector 7 is also provided on the back of the liquid cooling plate 5 to connect with the external liquid cooling pipe 6. Based on the above structure, this solution allows for independent cooling of the antenna array elements and signal transceiver components by setting array element cavities 51 and accessory cavities 52 on the liquid cooling plate 5. This enables the cooling unit to efficiently cool the entire RF section 2. Cooling is achieved by the cooling system entering the liquid cooling pipe 6 from external pipes, removing the heat generated by the RF section 2 through heat exchange. The liquid cooling plate 5 serves as the main support structure and heat sink for the antenna. The liquid cooling plate 5 has threaded holes in its inner cavity, allowing the RF front-end to be installed inside. The liquid cooling plate 5 contains a liquid cooling channel in the middle, where the main heat-generating components of the RF front-end come into contact with the liquid cooling plate 5, enabling high-density heat to be carried away from the antenna body through the coolant, thus meeting the thermal environment requirements of the internal components of the antenna. The liquid cooling connector 7 is installed on the liquid cooling plate 5, connecting the internal channel of the liquid cooling plate 5 to the external liquid cooling pipe 6.

[0029] As an example, the mounting base can be a rectangular structure. The mounting base plate 1 is provided with mounting holes for mounting to the external mounting platform 9, fixing holes for mounting to the liquid cooling plate 5, and mating holes for connecting to the inclined support part 3. The inclined support part 3 is inclinedly arranged between the mounting base plate 1 and the liquid cooling plate 5.

[0030] Based on the above structure, the mounting base plate 1 is fixed to the mounting platform 9 through mounting holes, the bottom of the liquid cooling plate 5 is fixed through fixing holes, and the radio frequency angle can be tilted through the inclined support part 3, making the whole device more flexible in use.

[0031] As an example, the inclined support 3 may include two parallel reinforcing ribs 8; one end of the reinforcing rib 8 is connected to the mounting base plate 1, and the other end is connected to the back plate of the liquid cooling plate 5, so that the liquid cooling plate 5, the mounting base plate 1 and the reinforcing rib 8 form a triangular structure.

[0032] Based on the above structure, two parallel reinforcing ribs 8 can support the left and right sides of the liquid cooling plate 5. At the same time, the liquid cooling plate 5, the mounting base plate 1, and the reinforcing ribs 8 form a triangular structure, which can make the whole structure more stable and enable it to withstand greater impacts, thereby improving the overall rigidity of the antenna.

[0033] As an example, the liquid cooling pipe 6 is arranged in a loop within the liquid cooling plate 5. This increases the length of the liquid cooling pipe 6 within the liquid cooling plate 5, resulting in better cooling performance.

[0034] As an example, the liquid cooling plate 5 is set perpendicular to the mounting platform 9 so that the direction of electromagnetic wave radiation is parallel to the plane of the mounting platform 9.

[0035] This invention provides an integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna. It can achieve small platform installation, large antenna aperture, high-density array element arrangement, adjustable cantilever angle for radiation direction, high heat flux density liquid cooling, and high rigidity and shock and vibration resistance. It can be applied to certain specific platforms for modification.

[0036] The mounting surface is located on the mounting base plate 1 at the bottom of the antenna. The mounting base plate secures the antenna to the mounting platform 9 with screws passing through the mounting holes, forming a cantilever structure between the antenna array and the mounting platform 9. The antenna radiation direction is no longer the traditional vertical mounting platform 9, but is instead controlled by the angle of the cantilever.

[0037] The liquid cooling plate 5 features mounting holes on both its front and back sides. The RF front-end can be mounted on the front to ensure the antenna array elements radiate electromagnetic waves and perform antenna functions. The functional module 4 can be mounted on the back to support normal antenna operation or extend antenna functionality. The RF front-end contains components for signal transmission, reception, and beam control, generating significant heat with concentrated heat flux. Ineffective heat dissipation can severely impact antenna performance. The liquid cooling plate 5 utilizes internal liquid cooling channels to dissipate heat from both its front and back sides as the coolant flows through these channels.

[0038] Two reinforcing ribs 8 are present in the antenna, one on the left and one on the right, mounted on the liquid cooling plate 5 and the mounting base plate 1 with screws, forming two sets of stable triangular structures to improve the overall rigidity of the antenna cantilever. In traditional single-plate cantilever structures, the cantilever tip has relatively weak rigidity, resulting in large deformation under impact and vibration, which can easily cause damage such as solder joint detachment and pin breakage of internal electrical components, rendering the antenna malfunctioning. By designing two reinforcing ribs 8, a stable triangular shape is formed in the overall structural configuration, greatly enhancing the rigidity of the entire antenna, especially the cantilever tip, and effectively avoiding the amplified effects of impact and vibration on the electrical components at the cantilever tip.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna, characterized in that, It includes a mounting base plate (1), a radio frequency unit (2), and an inclined support unit (3); the radio frequency unit (2) is set at a predetermined angle to the mounting base plate (1) through the inclined support unit (3).

2. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 1, characterized in that: The inclined support (3) is discretely set into multiple groups, and the length of each group of inclined support (3) is different.

3. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 2, characterized in that: A cooling unit is also provided on the mounting base plate (1), and a cavity that cooperates with the radio frequency unit (2) is provided in the cooling unit. The radio frequency unit (2) is located in the cavity of the cooling unit.

4. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 3, characterized in that: A functional module (4) is also provided on the end face of the cooling unit away from the radio frequency part (2), and the functional module (4) is fixedly connected to the cooling unit by bolts.

5. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 4, characterized in that: The radio frequency unit (2) includes an antenna array element and a signal transceiver component; the antenna array element is connected to the signal transceiver component.

6. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 5, characterized in that: The cooling unit is cooled by liquid cooling. The cooling unit includes a liquid cooling plate (5) and a liquid cooling pipe (6). The liquid cooling pipe (6) is embedded in the liquid cooling plate (5). The liquid cooling plate (5) has an array element cavity (51) and an accessory cavity (52) on its surface. The antenna array element is located in the array element cavity (51), and the signal transceiver assembly is located in the accessory cavity (52). The back of the liquid cooling plate (5) is also provided with a liquid cooling connector (7) that connects to the external liquid cooling pipe (6).

7. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 6, characterized in that: The mounting base is a rectangular structure. The mounting base plate (1) is provided with mounting holes for mounting to the external mounting platform (9), fixing holes for mounting to the liquid cooling plate (5), and mating holes for connecting to the inclined support part (3). The inclined support part (3) is obliquely arranged between the mounting base plate (1) and the liquid cooling plate (5).

8. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 7, characterized in that: The inclined support (3) includes two parallel reinforcing ribs (8); one end of the reinforcing rib (8) is connected to the mounting base plate (1), and the other end is connected to the back plate of the liquid cooling plate (5), so that the liquid cooling plate (5), the mounting base plate (1) and the reinforcing rib (8) form a triangular structure.

9. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 8, characterized in that: The liquid cooling pipe (6) is arranged in a loop within the liquid cooling plate (5).

10. The integrated structure for heat dissipation and vibration resistance of a large cantilever phased array antenna according to claim 9, characterized in that: The liquid cooling plate (5) is set perpendicular to the mounting platform (9) so that the electromagnetic wave radiation direction is parallel to the plane of the mounting platform (9).

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