WO2022267580A1

WO2022267580A1 - Sheet metal oscillator and antenna

Info

Publication number: WO2022267580A1
Application number: PCT/CN2022/082259
Authority: WO
Inventors: 段红彬; 郑桂鑫; 陈宏亮; 王钦源; 吴兆建; 黄明达
Original assignee: 京信射频技术(广州)有限公司; 京信通信技术(广州)有限公司
Priority date: 2021-06-23
Filing date: 2022-03-22
Publication date: 2022-12-29
Also published as: CN215070400U

Abstract

The present application provides a sheet metal oscillator, comprising a radiation plate. The radiation plate is bent to form feed sheets. At least one face of the feed sheets protrudes to form a reinforcing rib extending along a length direction thereof. The reinforcing rib extends from the feed sheet to the radiation plate. The reinforcing ribs are formed on the feed sheets, and the reinforcing ribs are connected to the feed sheets and the radiation plate, so that the connection strength between the feed sheets and the radiation plate is improved, and the feed sheets maintain high strength and structural stability after being bent. The feed sheets are not easily deformed, so that the consistency of the spacing dimension of the feed sheets is ensured, and the consistency of the performance of each oscillator is ensured. In addition, the feed sheets having higher strength are also more beneficial to automatic welding of the sheet metal oscillator, and the batch production efficiency is improved.

Description

A sheet metal vibrator and antenna

technical field

The present application relates to the technical field of antennas, in particular to a sheet metal vibrator and an antenna.

Background technique

Large-scale and lightweight antenna array design is the primary problem to be solved by 5G communication technology. Compared with die-casting vibrators, sheet metal vibrators have obvious advantages in weight and cost. However, the currently used sheet metal vibrator and the radiating plate are mostly flat plate-shaped structures, and then the feeding sheet formed by flanging and bending the radiating plate is welded and fixed. The structure of this kind of sheet metal vibrator is weak, and the feeding piece is easily deformed after being bent, resulting in unstable spacing between the feeding pieces, which may easily cause inconsistent performance between the vibrators on the 5G antenna, and is not conducive to the automatic welding of the sheet metal vibrator. Production efficiency is extremely low.

application content

The primary purpose of the present application is to provide a sheet metal vibrator that improves the performance consistency of the vibrator.

Another object of the present application is to provide an antenna using the above-mentioned sheet metal vibrator.

In order to achieve the above object, the application provides the following technical solutions:

A sheet metal vibrator, comprising a radiating plate, the radiating plate is bent to form a feeding sheet, at least one side of the feeding sheet protrudes to form a reinforcing rib extending along the length direction of the feeding sheet, the The reinforcing rib extends from the feed sheet to the radiation plate.

It is further provided that one side of the feed sheet is punched and protruded to form the reinforcing rib, and the other side is formed with a groove.

Further configuration: the reinforcing rib is arranged on the inner side of the bending structure of the feed sheet.

It is further provided that: the outer periphery of the radiation plate is bent and extended to form an extension part.

It is further provided that: the extension part of the outer periphery of the radiant plate extends along the circumferential direction of the radiant plate to form a continuous structure.

It is further provided that the extension part is formed by forming the radiant plate through a stretching process.

It is further provided that: the extension part is bent and extended toward the bending direction of the feeding sheet.

It is further provided that: the feed sheet is formed by punching out the radiating plate and then flanging and bending it.

Further setting: the thickness of the radiation plate is 0.4mm to 0.6mm.

The present application also provides an antenna, including the above-mentioned sheet metal vibrator.

Compared with the prior art, the scheme of the present application has the following advantages:

1. In the sheet metal vibrator involved in this application, the reinforcing rib is formed on the feeding sheet, and the reinforcing rib connects the feeding sheet and the radiating plate to improve the connection strength between the feeding sheet and the radiating plate, so that after the feeding sheet is bent, Maintain high strength and structural stability, and the feeder is not easy to deform, thus ensuring the consistency of the spacing of the feeder and the consistency of the performance of each vibrator. In addition, a higher strength feeder is also more conducive to sheet metal The automatic welding of the gold vibrator improves the efficiency of mass production.

2. In the sheet metal vibrator involved in this application, the outer periphery of the radiation plate is stretched to form an extension, and the extension is a continuous structure, which can effectively strengthen the structural strength of the radiation plate and ensure that the radiation plate is not easily deformed, and can be passed The formed extension portion improves the impedance convergence and beam width consistency of the sheet metal vibrator, thereby simplifying the boundary of the sheet metal vibrator.

3. In the antenna involved in this application, by using the above-mentioned sheet metal vibrator, the radiation performance consistency of each sheet metal vibrator is improved, the overall performance stability of the antenna is improved, and the automatic welding of the sheet metal vibrator and the antenna PCB board is also effectively improved. The qualification rate and improve the antenna production efficiency.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and will become apparent from the description, or may be learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a schematic structural diagram of the front of a sheet metal vibrator in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of the back of a sheet metal vibrator in an embodiment of the present application.

detailed description

As shown in Figure 1 and Figure 2, the present application provides a sheet metal vibrator, which is processed by sheet metal technology, and includes a radiation plate 1, which is bent to form a feed sheet 2, and the feed plate 1 At least one side of the electric sheet 2 protrudes to form a reinforcing rib 3 extending along the length direction of the feeding sheet 2 , and the reinforcing rib 3 extends from the feeding sheet 2 to the radiation plate 1 .

By forming reinforcing ribs 3 on the feeding sheet 2, the reinforcing ribs 3 connect the feeding sheet 2 and the radiating plate 1, thereby improving the connection strength between the feeding sheet 2 and the radiating plate 1, and keeping the feeding sheet 2 relatively tight after being bent. High strength and structural stability, the feeding sheet 2 is not easy to deform, thus ensuring the consistency of the spacing between the feeding sheets 2 and the consistency of the performance of each vibrator. In addition, the higher strength feeding sheet 2 It is not easy to deform during the welding process, and it is also more conducive to the automatic welding of sheet metal vibrators, improving the efficiency of mass production.

In this embodiment, four feeding sheets 2 are arranged on the radiating plate 1, wherein two feeding sheets 2 in a diagonal relationship are arranged parallel to each other, and two adjacent feeding sheets 2 are perpendicular to each other. set up.

In this embodiment, the feeding sheet 2 is roughly rectangular, and is formed by punching out the radiating plate 1 and then flanging and bending. Hollow holes 11 are left on the radiating plate 1 after the feeding sheet 2 is bent. . The size of the hollow hole 11 is slightly larger than the size of the feed sheet 2 . In the process of processing, the slits are sequentially carried out on the specified positions on the flat metal plate, and the flanging at the slits is bent to form the feed sheet 2. Only one short side of the feed sheet 2 is connected to the radiation plate 1. The other three sides of the electric sheet 2 are separated from the radiation plate 1 .

Further, one side of the feeding sheet 2 is punched and protruded to form the reinforcing rib 3 , and the other side is formed with a groove 4 . The reinforcing rib 3 is extended from the feeding sheet 2 to the radiating panel 1, so the positions corresponding to the reinforcing rib 3 on the feeding sheet 2 and the radiating panel 1 are processed by stamping, forming one side convex and one side concave Structure.

The ribs 3 are formed by stamping at the connection between the root of the feeding sheet 2 and the radiating panel 1. The reinforcing ribs 3 can effectively strengthen the structural strength of the feeding sheet 2, ensuring that the feeding sheet 2 can reliably support the radiating panel 1, thereby ensuring The feed sheet 2 and the radiation plate 1 do not collapse and deform. Using the stamping processing and forming method, a structure with one side concave and one side protruding is formed on the feed sheet 2 and the radiation plate 1, and the structure of the reinforcing rib 3 can be formed relatively quickly, the processing and forming difficulty is low, and the material loss is reduced. Waste, reduce the throwing rate of the sheet metal vibrator.

Further, the reinforcing rib 3 is arranged on the inner side of the bending structure of the feeding sheet 2, that is, the reinforcing rib 3 is arranged on the side of the feeding sheet 2 close to the center of the radiation plate 1, and the groove 4 is arranged on the feeding sheet 2. The electric sheet 2 is away from the side of the center of the radiation plate 1 .

Thus, the ribs 3 located inside the feed sheet 2 connect the feed sheet 2 and the radiating panel 1, and pull the feeding sheet 2 and the radiating panel 1, so that the feeding sheet 2 and the radiating panel 1 are connected after being bent. If it is kept vertical, the feed sheet 2 is not easily deformed, and the rib 3 itself will not be torn due to the bending deformation of the feed sheet 2, which further improves the structural stability of the sheet metal vibrator.

In this embodiment, only one reinforcing rib 3 is provided on the feed sheet 2, and the reinforcing rib 3 is located on the symmetrical center line of the feed sheet 2. In other embodiments, the reinforcing rib 3 is also Two or more reinforcement ribs 3 may be arranged evenly along the width direction of the feed sheet 2 .

Further, the outer periphery of the radiant panel 1 is bent and extended with an extension part 12 . In this embodiment, the outer contour of the radiation board 1 is square, and the four sides of the radiation board 1 are respectively bent and extended to form the extension portion 12 . Preferably, the extension portion 12 of the outer periphery of the radiant panel 1 extends along the circumferential direction of the radiant panel 1 to form a continuous structure. In this embodiment, the entire radiant panel 1 is formed by a sheet metal stretching process, and the radiant panel 1 is formed by a stretching process to form the extension portion 12 .

The extension part 12 is formed by bending and extending the outer periphery of the radiant panel 1, and the extension part 12 has a continuous extension structure. The radiant panel 1 is formed by a sheet metal stretching process, and the extension part 12 is stretched to form the four sides of the radiant panel 1. The integrated structure effectively strengthens the structural strength of the radiating panel 1 and ensures that the radiating panel 1 is not easily deformed.

In this embodiment, the extension portion 12 is bent and extended toward the bending direction of the feeding sheet 2 . By bending the extension part 12 on the radiation board 1, the overall structural strength of the radiation board 1 can be improved, and the extension part 12 formed by stretching the radiation board 1 can effectively improve the impedance convergence and beam width consistency of the sheet metal vibrator properties, thereby simplifying the boundary of the sheet metal vibrator.

In this embodiment, the thickness of the radiation plate 1 is 0.4 mm to 0.6 mm, preferably 0.5 mm. By adopting the structure of stretching the extension part 12 on the radiating plate 1, the structural strength of the sheet metal vibrator with a thickness of 0.5 mm is equivalent to the structural strength of the existing sheet metal vibrator using a flat plate-shaped radiating plate with a thickness of 0.8 mm. Under the requirement of the same structural strength, the thickness of the material can be greatly reduced, thereby reducing the production cost and the weight of the sheet metal vibrator.

In one of the embodiments, the performance of the sheet metal vibrator can be adjusted by opening a groove structure on the radiating plate 1 or adjusting the stretched shape and stretched height of the extension part 12 .

The present application also provides an antenna, which includes an antenna PCB board and the above-mentioned sheet metal vibrator, and the four feeding pieces 2 of the sheet metal vibrator are connected to the power dividing network of the antenna PCB board. By adopting the above-mentioned sheet metal vibrator, the structural strength of the feed sheet 2 in the sheet metal vibrator is improved, and the deformation is not easy to occur, and the performance consistency of each sheet metal vibrator is improved, which is conducive to improving the overall radiation performance stability of the antenna. In addition, the feed The improvement of the strength of the sheet 2 is also beneficial to reduce the difficulty of automatic welding of the sheet metal vibrator and the antenna PCB board, improve the welding qualification rate, and improve the production efficiency.

In summary, the scheme of the present application has the following advantages:

1. In the sheet metal vibrator involved in this application, the reinforcing rib 3 is formed on the feeding sheet 2, and the reinforcing rib 3 connects the feeding sheet 2 and the radiating plate 1, thereby improving the connection strength between the feeding sheet 2 and the radiating plate 1 , so that the feeding sheet 2 maintains high strength and structural stability after being bent, and the feeding sheet 2 is not easily deformed, thereby ensuring the consistency of the spacing size of the feeding sheet 2 and the consistency of the performance of each vibrator. In addition, The higher-strength feeder 2 is also more conducive to the automatic welding of the sheet metal vibrator, improving the efficiency of mass production.

2. In the sheet metal vibrator involved in this application, the outer periphery of the radiation plate 1 is stretched to form an extension portion 12, and the extension portion 12 is a continuous structure, which can effectively strengthen the structural strength of the radiation plate 1 and ensure that the radiation plate 1 is not easily damaged. The deformation can also improve the impedance convergence and beam width consistency of the sheet metal vibrator through the formed extension part 12, thereby simplifying the boundary of the sheet metal vibrator.

Claims

A sheet metal vibrator, comprising a radiating plate, the radiating plate is bent to form a feeding sheet, and it is characterized in that: at least one side of the feeding sheet protrudes to form a reinforcement extending along the length direction of the feeding sheet ribs, and the reinforcing ribs extend from the feed sheet to the radiation plate.
The sheet metal vibrator according to claim 1, characterized in that: one side of the feed sheet is punched and protruded to form the reinforcing rib, and the other side is formed with a groove.
The sheet metal vibrator according to claim 2, characterized in that: the reinforcing rib is arranged inside the bending structure of the feed sheet.
The sheet metal vibrator according to claim 1, characterized in that: the outer periphery of the radiating plate is bent and extended to have an extension part.
The sheet metal vibrator according to claim 4, wherein the extension part of the outer periphery of the radiating plate extends along the circumferential direction of the radiating plate to form a continuous structure.
The sheet metal vibrator according to claim 5, wherein the extension part is formed by forming the radiating plate through a stretching process.
The sheet metal vibrator according to claim 4, wherein the extension part is bent and extended toward the bending direction of the feeding piece.
The sheet metal vibrator according to claim 1, characterized in that: the feed piece is formed by punching out the radiating plate and then flanging and bending it.
The sheet metal vibrator according to claim 1, characterized in that: the thickness of the radiation plate is 0.4 mm to 0.6 mm.
An antenna, characterized by comprising the sheet metal vibrator according to any one of claims 1-9.