Radar antenna framework and method of manufacturing the same

Abstract

The application provides a radar antenna framework, which comprises a middle framework, two side frameworks oppositely arranged on two sides of the middle framework and detachably assembled with the middle framework, a middle reflecting plate laid on the middle framework and a side reflecting plate laid on the side framework, wherein an electric connector is arranged between the middle reflecting plate and the side reflecting plate, the electric connector comprises a connector A installed on the middle reflecting plate, a connector B installed on the side reflecting plate and a spring piece installed on the connector A or the connector B and in contact with both of them. The application also provides a manufacturing method of the radar antenna framework. The electric continuity of the middle reflecting plate and the side reflecting plate after assembly is realized through the compression contact of the spring piece, so that the disassembly efficiency of the antenna framework is ensured on the premise of guaranteeing the electric connection characteristics of the antenna. Moreover, the elasticity of the spring piece has a large adaptive allowance for the precision of butt joint and the gap of assembly, so that the installation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radio frequency signal transmitting and receiving equipment, in particular to a radar antenna framework and a manufacturing method thereof. BACKGROUND

[0002] The antenna array of a radar is responsible for the transmission and reception of radio frequency signals. With the continuous improvement of radar performance indicators, the structure form of the antenna array has become an important guarantee condition for radar performance indicators.

[0003] The antenna framework is often divided into multiple blocks for assembly due to transportation limits, resulting in seams in the assembled position of the reflector plate affecting the electrical performance, and therefore a quick and reliable electrical connection method is needed to improve the installation efficiency of the antenna framework. SUMMARY

[0004] In order to solve the technical problems in the background art, the present application provides a radar antenna framework and a manufacturing method thereof.

[0005] The radar antenna framework provided by the present application comprises a middle framework, two side frameworks arranged opposite to the two sides of the middle framework and detachably assembled with the middle framework, a middle reflector plate laid on the middle framework, and a side reflector plate laid on the side framework, wherein:

[0006] An electrical connector is arranged between the middle reflector plate and the side reflector plate, and the electrical connector comprises a connector A mounted on the middle reflector plate, a connector B mounted on the side reflector plate, and a spring piece mounted on the connector A or the connector B and in contact with both.

[0007] Preferably, the two ends of the spring piece are fixed on the connector A, and the middle part of the spring piece is arched towards the connector B.

[0008] Preferably, the mounting position of the connector A in the direction of the line connecting the middle reflector plate and the side reflector plate is adjustable.

[0009] Preferably, a waist hole is arranged on the connector A, the connector A is mounted on the middle reflector plate through a threaded fastener matched with the waist hole, and the length direction of the waist hole is consistent with the direction of the line connecting the middle reflector plate and the side reflector plate.

[0010] Preferably, a plurality of flanges A are welded on the assembly surface of the middle framework opposite to the side framework, a plurality of flanges B are welded on the assembly surface of the side framework opposite to the middle framework, each flange B corresponds to each flange A in order and is connected to each other through a threaded fastener to form the detachable assembly of the side framework and the middle framework.

[0011] Preferably, the middle reflector plate and the side reflector plate are both grid-shaped plates composed of a plurality of longitudinally and transversely arranged strip-shaped reflector plates.

[0012] Preferably, the middle skeleton together with its corresponding middle reflector plate, and the edge skeleton together with the corresponding edge reflector plate are subjected to a hot-dip galvanizing process to form a protective layer on their surfaces.

[0013] The present application provides a manufacturing method of a radar antenna skeleton, comprising the following steps:

[0014] S1, respectively processing the middle reflector plate, the edge reflector plate, and the middle skeleton and the edge skeleton;

[0015] S2, providing a skeleton processing table and a welding tool, mounting the flange A and the flange B on the welding tool, and fixing the welding tool on the skeleton processing table;

[0016] S3, placing the middle skeleton and the edge skeleton on the skeleton processing table, and making the assembly surfaces of the middle skeleton and the edge skeleton respectively abut against the flange A and the flange B;

[0017] S4, welding the flange A to the middle skeleton, welding the flange B to the edge skeleton, connecting the flange A and the flange B by using fasteners to form the assembly of the edge skeleton and the middle skeleton, mounting the middle reflector plate on the middle skeleton, and mounting the edge reflector plate on the edge skeleton;

[0018] S5, separating the edge skeleton and the middle skeleton, and subjecting the middle skeleton together with the middle reflector plate, and the edge skeleton together with the edge reflector plate to a hot-dip galvanizing process;

[0019] S6, reassembling the edge skeleton and the middle skeleton, and mounting the electrical connector.

[0020] Preferably, in S1, the processing method of the middle reflector plate and the edge reflector plate is as follows:

[0021] S11, processing a row of notches on the strip-shaped reflector plate at a predetermined interval;

[0022] S12, providing a reflector plate processing table, the tabletop of the reflector plate processing table is provided with a plurality of longitudinally and transversely arranged transverse grooves and longitudinal grooves, and the width of the longitudinal grooves and the transverse grooves matches the thickness of the strip-shaped reflector plate, so as to ensure that the strip-shaped reflector plate can be inserted thereinto;

[0023] inserting the strip-shaped reflector plate with notches into each transverse groove and longitudinal groove, and making each notch on the strip-shaped reflector plate in the transverse groove and each notch on the strip-shaped reflector plate in the longitudinal groove both be at the intersection of the transverse groove and the longitudinal groove and be mutually clamped;

[0024] S13, respectively welding the clamped parts, so as to mutually fix the strip-shaped reflector plate in the transverse groove and the strip-shaped reflector plate in the longitudinal groove to form an integral whole.

[0025] The present application realizes the electrical continuity of the middle reflector plate and the side reflector plate after assembly by the compression contact of the elastic sheet. The structure can be disconnected when the middle frame and the side frame are separated, and can be automatically connected after the assembly of the two, thereby ensuring the disassembly efficiency of the antenna frame under the premise of ensuring the electrical connection characteristics of the antenna. Moreover, the elasticity of the elastic sheet has a large adaptive allowance for the precision of the butt joint and the gap of the assembly, thereby reducing the installation difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A structure diagram of a radar antenna frame is provided for the present application.

[0027] Figure 2 A structure diagram of the electrical connector in the radar antenna frame is provided for the present application.

[0028] Figure 3 An exploded view of the electrical connector in the radar antenna frame is provided for the present application.

[0029] Figure 4 A structure diagram of the middle frame in the radar antenna frame is provided for the present application.

[0030] Figure 5 A structure diagram of the side frame in the radar antenna frame is provided for the present application.

[0031] Figure 6 A partial diagram of the middle reflector plate in the radar antenna frame is provided for the present application.

[0032] Figure 7 A structure diagram of the strip-shaped reflector plate in the manufacturing method of the radar antenna frame is provided for the present application.

[0033] Figure 8 A structure diagram of the reflector plate processing platform in the manufacturing method of the radar antenna frame is provided for the present application.

[0034] Figure 9 A welding diagram of the flange A and the flange B in the manufacturing method of the radar antenna frame is provided for the present application. DETAILED DESCRIPTION

[0035] REFERENCE Figure 1 The present application provides a radar antenna frame, which comprises a middle frame 1, two side frames 2 arranged opposite to both sides of the middle frame 1 and detachably assembled with the middle frame 1, a middle reflector plate 3 laid on the middle frame 1, and a side reflector plate 4 laid on the side frame 2.

[0036] REFERENCE Figures 2-3The electric connecting piece 5 is arranged between the middle reflecting plate 3 and the side reflecting plate 4, and the electric connecting piece 5 comprises a connecting piece A 501, a connecting piece B 502 and a spring piece 503, the connecting piece A 501 is arranged on the middle reflecting plate 3, the connecting piece B 502 is arranged on the side reflecting plate 4, the two ends of the spring piece 503 are fixed on the connecting piece A 501, and the middle part of the spring piece 503 is arched towards the connecting piece B 502 and is in contact with the connecting piece B 502, so that the electric continuity of the middle reflecting plate 3 and the side reflecting plate 4 after assembly is realized through the compression contact of the spring piece 503. Therefore, the middle skeleton 1 and the side skeleton 2 can be disconnected when the middle skeleton 1 and the side skeleton 2 are separated, and the middle skeleton 1 and the side skeleton 2 can be automatically connected after assembly, and the elasticity of the spring piece 503 has a large adaptive allowance for the accuracy of the butt joint and the gap of the assembly.

[0037] Specifically, the connecting piece A 501 is provided with a waist hole, the connecting piece A 501 is arranged on the middle reflecting plate 3 through a threaded fastener matched with the waist hole, and the length direction of the waist hole is consistent with the direction of the line connecting the middle reflecting plate 3 and the side reflecting plate 4, so that the installation position of the connecting piece A 501 in the direction of the line connecting the middle reflecting plate 3 and the side reflecting plate 4 is adjustable.

[0038] Specifically, the connecting piece A 501 is an angle code, one of the right-angled edges thereof faces upwards, the other of the right-angled edges thereof faces the side reflecting plate 4, the waist hole is arranged on the right-angled edge facing upwards, and the spring piece 503 is fixed on the right-angled edge facing the side reflecting plate 4. The connecting piece B 502 is an angle code, one of the right-angled edges thereof faces upwards and is fixed on the side reflecting plate 4, and the other of the right-angled edges thereof is opposite to the right-angled edge where the spring piece 503 is located.

[0039] Referring to Figures 4-5 A plurality of flanges A 6 are welded on the assembly faces of the middle skeleton 1 and the side skeleton 2 opposite to each other, a plurality of flanges B 7 are welded on the assembly faces of the side skeleton 2 and the middle skeleton 1 opposite to each other, each flange B 7 corresponds to each flange A 6 in sequence and is connected to each flange A 6 through a threaded fastener to form the detachable assembly of the side skeleton 2 and the middle skeleton 1. The middle skeleton 1 and the side skeleton 2 are connected through the flanges A 6 and the flanges B 7 to realize the detachable assembly of the middle skeleton 1 and the side skeleton 2. Compared with the existing method of directly placing the middle skeleton 1 and the side skeleton 2 on a machine tool to process and install the interface, the processing difficulty is reduced and the processing efficiency is improved.

[0040] Referring to Figure 6 The middle reflecting plate 3 and the side reflecting plate 4 are both grid-shaped plates composed of a plurality of strip-shaped reflecting plates arranged in a longitudinal and transverse cross pattern. The grid-shaped structure design meets the complex working environment such as rain and snow, and has extremely strong bearing capacity, facilitating the subsequent installation and maintenance of the array surface. At the same time, the grid-shaped reflecting plate structure is simple and suitable for mass production.

[0041] In this embodiment, the middle skeleton 1 together with its corresponding middle reflecting plate 3, and the edge skeleton 2 together with the corresponding edge reflecting plate 4 are formed with a protective layer on the surface by hot-dip galvanizing process. The hot-dip galvanizing protection process can not only ensure the continuous closure of the reflecting plate grid hole and ensure its telecommunication waveguide effect, but also effectively solve the three-proofing problem, improve the production efficiency and reduce the cost. In addition, a reasonable process hole is given to the closed pipe cavity of the skeleton to ensure the safety and reliability of the hot-dip galvanizing process and improve the universality of this way.

[0042] The manufacturing method of the radar antenna skeleton provided by the application comprises the following steps:

[0043] S1, respectively processing the middle reflecting plate 3, the edge reflecting plate 4, and the middle skeleton 1 and the edge skeleton 2;

[0044] The processing method of the middle reflecting plate 3 and the edge reflecting plate 4 is as follows:

[0045] S11, a row of clamping holes is processed on the strip-shaped reflecting plate at a predetermined interval, as shown in Figure 7 ;

[0046] S12, a reflecting plate processing table 10 is provided, a plurality of longitudinally and transversely arranged transverse grooves and longitudinal grooves are arranged on the table top of the reflecting plate processing table 10, and the width of the longitudinal groove and the transverse groove is matched with the thickness of the strip-shaped reflecting plate, so as to ensure that the strip-shaped reflecting plate can be inserted thereinto, as shown in Figure 8 ;

[0047] The strip-shaped reflecting plate with the clamping hole is respectively inserted into each transverse groove and longitudinal groove, and each clamping hole on the strip-shaped reflecting plate in the transverse groove and each clamping hole on the strip-shaped reflecting plate in the longitudinal groove are all located at the intersection of the transverse groove and the longitudinal groove and are clamped with each other;

[0048] S13, the clamping parts are respectively welded, so that the strip-shaped reflecting plate in the transverse groove and the strip-shaped reflecting plate in the longitudinal groove are fixed with each other to form an integral whole;

[0049] S2, a skeleton processing table 8 and a welding tool 9 are provided, the flange A6 and the flange B7 are installed on the welding tool 9, and the welding tool 9 is fixed on the skeleton processing table 8, as shown in Figure 9 ;

[0050] S3, the middle skeleton 1 and the edge skeleton 2 are placed on the skeleton processing table 8, and the assembly surfaces of the middle skeleton 1 and the edge skeleton 2 are respectively attached to the flange A6 and the flange B7, as shown in Figure 9 ;

[0051] S4, welding the flange A6 to the middle skeleton 1, welding the flange B7 to the side skeleton 2, connecting the flange A6 and the flange B7 by fasteners to form the assembly of the side skeleton 2 and the middle skeleton 1, installing the middle reflecting plate 3 on the middle skeleton 1, and installing the side reflecting plate 4 on the side skeleton 2;

[0052] S5, separating the side skeleton 2 and the middle skeleton 1, and carrying out hot-dip galvanizing treatment on the middle skeleton 1 together with the middle reflecting plate 3 and the side skeleton 2 together with the side reflecting plate 4;

[0053] S6, reassembling the side skeleton 2 and the middle skeleton 1, and installing the electric connecting piece 5.

[0054] From the above, the radar antenna skeleton and the manufacturing method thereof provided by the application have the following advantages:

[0055] 1, the elastic electric connecting structure is adopted to ensure the quick electric connection of the reflecting plate when the antenna skeleton is assembled, and the installation efficiency is improved;

[0056] 2, the grid-shaped reflecting plate structure is provided to improve the environmental adaptability and the maintainability of the antenna skeleton;

[0057] 3, the hot-dip galvanizing protection process is adopted for the grid-shaped reflecting plate to ensure the closed continuity of the grid holes, realize the electric communication waveguide effect of the reflecting plate, and improve the production efficiency and reduce the cost;

[0058] 4, the assembly mode of the flanges on the middle skeleton and the side skeleton reduces the machining cost.

[0059] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A radar antenna skeleton, characterized by The utility model relates to a kind of solar reflector, including: Middle skeleton (1), two side skeletons (2) being oppositely arranged on both sides of middle skeleton (1) and being detachably assembled with middle skeleton (1), and middle reflecting plate (3) being laid on middle skeleton (1) and side reflecting plate (4) being laid on side skeleton (2), wherein: Middle reflecting plate (3) and side reflecting plate (4) are provided with electrical connector (5) between, electrical connector (5) includes connector A (501) being installed on middle reflecting plate (3), connector B (502) being installed on side reflecting plate (4), and spring (503) being installed on connector A (501) or connector B (502) and being in contact with both of them; Two ends of spring (503) are fixed on connector A (501), and the middle part of spring (503) is arched to the direction of connector B (502) and is in contact with connector B (502), to realize the electrical connection of middle reflecting plate (3) and side reflecting plate (4) after assembly by the compression contact of spring (503).

2. The radar antenna skeleton according to claim 1, characterized in that The installation position of connector A (501) in the direction of the line of middle reflecting plate (3) and side reflecting plate (4) is adjustable.

3. The radar antenna skeleton according to claim 2, characterized in that Waist hole is provided on connector A (501), and connector A (501) is installed on middle reflecting plate (3) by threaded fastener matched with waist hole, and the length direction of waist hole is consistent with the direction of the line of middle reflecting plate (3) and side reflecting plate (4).

4. The radar antenna skeleton of claim 1, wherein, A plurality of flanges A (6) are welded on the assembly surface of middle skeleton (1) and side skeleton (2) oppositely, a plurality of flanges B (7) are welded on the assembly surface of side skeleton (2) and middle skeleton (1) oppositely, each flange B (7) and each flange A (6) are sequentially corresponding one by one and are connected with each other by threaded fastener to form the detachable assembly of side skeleton (2) and middle skeleton (1).

5. The radar antenna skeleton of claim 1, wherein, Middle reflecting plate (3) and side reflecting plate (4) are both grid-shaped plate composed of a plurality of longitudinally and transversely arranged strip-shaped reflecting plates.

6. The radar antenna skeleton of claim 1, wherein, Middle skeleton (1) forms a protective layer on its surface by hot-dip galvanizing process together with its corresponding middle reflecting plate (3) and side skeleton (2) together with corresponding side reflecting plate (4).

7. A method of manufacturing a radar antenna framework, characterized by, Including the following steps: S1, middle reflecting plate (3), side reflecting plate (4), and middle skeleton (1) and side skeleton (2) are respectively processed; S2, a skeleton processing table (8) and a welding tool (9) are provided, flange A (6) and flange B (7) are installed on the welding tool (9), and the welding tool (9) is fixed on the skeleton processing table (8); S3, middle skeleton (1) and side skeleton (2) are placed on the skeleton processing table (8), and the assembly surface of middle skeleton (1) and side skeleton (2) respectively abuts against flange A (6) and flange B (7); S4, flange A (6) is welded to middle skeleton (1), flange B (7) is welded to side skeleton (2), and flange A (6) and flange B (7) are connected by fastener to form the assembly of side skeleton (2) and middle skeleton (1), middle reflecting plate (3) is installed on middle skeleton (1), and side reflecting plate (4) is installed on side skeleton (2); S5, separate the edge skeleton (2) from the middle skeleton (1), and hot dip galvanize the middle skeleton (1) together with the middle reflecting plate (3) and the edge skeleton (2) together with the edge reflecting plate (4); S6, reassemble the edge skeleton (2) and the middle skeleton (1), and install the electrical connector (5).

8. The method of manufacturing a radar antenna skeleton according to claim 7, characterized in that, In S1, the processing method of the middle reflecting plate (3) and the edge reflecting plate (4) is as follows: S11, process a row of notches on the strip-shaped reflecting plate at a predetermined interval; S12, provide a reflecting plate processing table (10), the tabletop of the reflecting plate processing table (10) is provided with a plurality of longitudinally and transversely arranged transverse grooves and longitudinal grooves, and the width of the transverse grooves and the longitudinal grooves is matched with the thickness of the strip-shaped reflecting plate, so as to ensure that the strip-shaped reflecting plate can be inserted therein; Insert the strip-shaped reflecting plate with notches into each transverse groove and longitudinal groove, and make each notch on the strip-shaped reflecting plate in the transverse groove and each notch on the strip-shaped reflecting plate in the longitudinal groove all be at the intersection of the transverse groove and the longitudinal groove and be mutually clamped; S13, weld the clamped parts respectively, so as to mutually fix the strip-shaped reflecting plate in the transverse groove and the strip-shaped reflecting plate in the longitudinal groove to form an integral whole.

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