Hardware interface structure for electrical interconnection between high-frequency boards

Abstract

The utility model discloses a high-frequency inter-board electrical interconnection hardware interface structure, which is characterized in that the upper end and the lower end of an installation structure body are respectively and fixedly connected with an antenna radiation plate and a microwave radio frequency plate in a staggered manner through fasteners, the area of the installation structure body is larger than that of the antenna radiation plate and the microwave radio frequency plate, and an inter-board electrical interface is arranged in the installation structure body. According to the utility model, the antenna can be used under the conditions of high-density, low-space and welding-free electrical interconnection of a high-frequency circuit, reduces the time and cost of production, assembly and maintenance, can meet the requirements of airborne and spaceborne products with high requirements on size and weight, is beneficial to the stabilization of technical states, and improves the working efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a high-frequency inter-board electrical interconnection hardware interface structure. Background Technology

[0002] Due to the rapid pace of technological updates and iterations, the number of antenna elements in high-frequency communication and radar equipment has increased dramatically. Traditional inter-board radio frequency (RF) electrical interconnection methods are insufficient to meet the needs of equipment space, production assembly, and subsequent maintenance. Traditional RF electrical interconnection methods typically involve soldering RF coaxial connectors onto circuit boards. After soldering RF coaxial connectors onto two electrically connected circuit boards, they are then electrically interconnected through an RF coaxial adapter. This type of electrical interconnection increases the workload of the production process, the space occupied by the equipment, and the weight of the product. Furthermore, if the number of electrical interconnection interfaces is large, it will cause difficulties in equipment assembly, inconvenience in subsequent maintenance, and a corresponding increase in costs.

[0003] Therefore, designing a hardware interface structure for high-frequency inter-board electrical interconnection to enable high-frequency circuit electrical interconnection to be used in a high-density, low-space, and solderless manner has become a direction for further improvement. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a high-frequency board-to-board electrical interconnection hardware interface structure.

[0005] This utility model provides the following technical solution: a high-frequency inter-board electrical interconnection hardware interface structure, including a mounting structure, an antenna radiating board, a microwave radio frequency board, and an inter-board electrical interface. The upper and lower ends of the mounting structure are respectively fixedly connected to the antenna radiating board and the microwave radio frequency board by fasteners in an alternating manner. The area of ​​the mounting structure is larger than that of the antenna radiating board and the microwave radio frequency board. The inter-board electrical interface is provided inside the mounting structure.

[0006] Preferably, the mounting structure is made of aluminum alloy.

[0007] Preferably, the mounting structure has a plurality of screw holes and mounting holes evenly arranged in an array, and the mounting holes are interference-fitted with the inter-board electrical interface.

[0008] Preferably, the inter-board electrical interface has an annular protrusion in the middle.

[0009] Preferably, the fasteners include screws and washers, and the antenna radiating plate is fixed in the screw hole by screws and washers; the microwave radio frequency plate is fixed in the screw hole by screws and washers, and the screws on the antenna radiating plate and the screws on the microwave radio frequency plate are staggered.

[0010] Preferably, the diameter of the mounting hole is different from the diameter of the screw hole.

[0011] Compared with existing technologies, the beneficial effects of this utility model are:

[0012] (1) This utility model features an antenna radiating plate and a microwave radio frequency board that are fixedly connected to the upper and lower ends of a mounting structure using fasteners in an alternating manner. The area of ​​the mounting structure is larger than that of the antenna radiating plate and the microwave radio frequency board, and an inter-board electrical interface is provided within the mounting structure. This utility model can be used in situations requiring high-density electrical interconnection of high-frequency circuits, low space requirements, and no soldering, reducing production, assembly, and maintenance time and costs. It also meets the high size and weight requirements of airborne and spaceborne products, contributing to stable technical status and improving work efficiency. Attached Figure Description

[0013] Figure 1 This is an exploded view of the present invention;

[0014] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0015] like Figures 1 to 2 As shown, a high-frequency inter-board electrical interconnection hardware interface structure includes a mounting structure 1, an antenna radiating board 2, a microwave radio frequency board 3, an inter-board electrical interface 4, screw holes 5, mounting holes 6, annular protrusions 7, screws 8, and washers 9.

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figures 1 to 2 As shown, the upper and lower ends of the mounting structure 1 are respectively fixedly connected to the antenna radiating plate 2 and the microwave radio frequency plate 3 by fasteners in an alternating manner. The area of ​​the mounting structure 1 is larger than that of the antenna radiating plate 2 and the microwave radio frequency plate 3. The mounting structure 1 is provided with an inter-board electrical interface 4. The mounting structure 1 is made of aluminum alloy.

[0020] The mounting structure 1 has multiple screw holes 5 and mounting holes 6 evenly arranged in an array. The mounting holes 6 are interference-fitted with the inter-board electrical interface 4, and the inter-board electrical interface 4 has a ring-shaped protrusion 7 in the center. The assembled electrical interconnection hardware interface structure is aesthetically pleasing.

[0021] The fasteners include screws 8 and washers 9. The antenna radiating plate 2 is fixed in the screw hole 5 by screws 8 and washers 9; the microwave RF board 3 is fixed in the screw hole 5 by screws 8 and washers 9. The screws 8 on the antenna radiating plate 2 and the screws 8 on the microwave RF board 3 are staggered, and the diameter of the mounting hole 6 is different from the diameter of the screw hole 5. This effectively distinguishes the screws 8 that need to be installed from the inter-board electrical structure 4, reducing the difficulty of installation.

[0022] For communication and radar equipment used in airborne and spaceborne applications, this board-to-board electrical interface 4 design can meet the requirements of ultra-high density, small space size, light weight, and simple production and assembly.

[0023] The inter-board electrical interface 4 is interference-fitted onto the mounting structure 1, resulting in high structural strength. The microwave radio frequency board 3 and the antenna radiating board 2 are simultaneously mounted and attached to both sides of the structure, achieving high heat dissipation efficiency and enhancing the radio frequency anti-interference capability, thereby improving the design reliability of the equipment.

[0024] This utility model has a simple overall structure and can be effectively applied to relevant X-band phased array antenna products. It greatly reduces the spatial envelope size and product weight, and makes production, assembly, debugging and subsequent maintenance simple and convenient. At the same time, it greatly reduces costs and fully meets the actual use needs of the product.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high-frequency inter-board electrical interconnection hardware interface structure, characterized in that: The device includes an installation structure (1), an antenna radiating plate (2), a microwave radio frequency board (3), and an inter-board electrical interface (4). The upper and lower ends of the installation structure (1) are respectively fixedly connected to the antenna radiating plate (2) and the microwave radio frequency board (3) by fasteners. The area of ​​the installation structure (1) is larger than that of the antenna radiating plate (2) and the microwave radio frequency board (3). The installation structure (1) is provided with an inter-board electrical interface (4).

2. The high-frequency inter-board electrical interconnection hardware interface structure according to claim 1, characterized in that: The mounting structure (1) is made of aluminum alloy.

3. The high-frequency inter-board electrical interconnection hardware interface structure according to claim 2, characterized in that: The mounting structure (1) has a plurality of screw holes (5) and mounting holes (6) evenly arranged, and the mounting holes (6) are interference-fitted with the inter-board electrical interface (4).

4. The high-frequency inter-board electrical interconnection hardware interface structure according to claim 3, characterized in that: The inter-board electrical interface (4) has an annular protrusion (7) in the middle.

5. The high-frequency inter-board electrical interconnection hardware interface structure according to claim 3, characterized in that: The fasteners include screws (8) and washers (9). The antenna radiating plate (2) is fixed in the screw hole (5) by screws (8) and washers (9). The microwave radio frequency plate (3) is fixed in the screw hole (5) by screws (8) and washers (9). The screws (8) on the antenna radiating plate (2) and the screws (8) on the microwave radio frequency plate (3) are staggered and opposite to each other.

6. The high-frequency inter-board electrical interconnection hardware interface structure according to claim 5, characterized in that: The diameter of the mounting hole (6) is different from the diameter of the screw hole (5).

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