Radiating Element with Support Frame and Base Station Antenna

Abstract

The present invention provides a radiation unit with a support frame, which includes a support frame, a plurality of radiation sheets and a feeding network board. The support frame is provided with a plurality of limiting platforms, and adjacent two limiting platforms are connected to each other through reinforcing ribs. At least one limiting structure is provided on the upper surface of each limiting platform. Each radiation sheet is respectively fixed to a limiting platform through the limiting structure. The feeding network board is installed on the lower surface of the support frame. The present invention also provides a base station antenna with the radiation unit having the support frame. Thereby, the radiation unit of the present invention is assembled by a physical fastening method without welding, avoiding the risks of repair and oxidation, greatly improving the production efficiency and reducing the production cost.

Description

Technical Field

[0001] The present invention relates to the field of mobile communication base station antennas, and particularly to a radiation unit with a support frame and a base station antenna. Background Art

[0002] A base station antenna is the most front-end passive device in a mobile wireless communication system. It receives radio information sent by a user mobile terminal and simultaneously sends radio information to the user mobile terminal, and is an important information hub in the mobile wireless communication system. At present, in the 5G antenna radiation unit structure, commonly used ones include PCB (Printed Circuit Board) radiation units, die-cast radiation units, plastic oscillator radiation units, etc. During the manufacturing process of existing radiation units, the feeding sheet and the radiation sheet are first assembled by welding, and then the completely assembled radiation unit is welded to the feeding network to form a non-detachable part, resulting in defects such as many solder joints, wasted working hours, high probability of repair, high production cost, and low production efficiency in existing radiation units.

[0003] In summary, it is obvious that there are inconveniences and defects in the prior art during actual use, so it is necessary to improve. Summary of the Invention

[0004] Aiming at the above-mentioned defects, the purpose of the present invention is to provide a radiation unit with a support frame and a base station antenna, which does not require welding, avoids the risks of repair and oxidation, can greatly improve production efficiency, and reduce production costs.

[0005] In order to solve the above technical problems, the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a radiation unit with a support frame, including a support frame, a plurality of radiation sheets, and a feeding network board; the support frame is provided with a plurality of limiting platforms, and adjacent two of the limiting platforms are connected to each other by reinforcing ribs, and at least one limiting structure is provided on the upper surface of each limiting platform; each radiation sheet is respectively fixed to one of the limiting platforms through the limiting structure; the feeding network board is installed on the lower surface of the support frame.

[0007] According to the radiation unit of the present invention, the reinforcing ribs of the support frame include hook reinforcing ribs and combined reinforcing ribs, the hook reinforcing ribs are arranged at the bottom of the limiting platform, and the combined reinforcing ribs respectively connect the hook reinforcing ribs of adjacent two of the limiting platforms.

[0008] According to the radiation unit of the present invention, the combined reinforcing ribs include strip-shaped reinforcing ribs and annular reinforcing ribs;

[0009] The support frame is provided with a limit platform array composed of M*N limit platforms, where M and N are integers greater than 1. Two adjacent limit platforms in the same column are connected to each other by the annular reinforcing rib, and two adjacent limit platforms in the same row are connected to each other by the strip-shaped reinforcing rib.

[0010] For the radiation unit according to the present invention, a plurality of first positioning posts are provided at the bottom of the combined reinforcing rib of the support frame, and the plurality of first positioning posts are arranged diagonally with respect to each other; and / or

[0011] A plurality of support posts are provided at the bottom of the hook-shaped reinforcing rib and / or the combined reinforcing rib of the support frame.

[0012] For the radiation unit according to the present invention, the support frame is made of plastic material; and / or

[0013] The support frame and the feed network board are fixedly connected by fasteners.

[0014] For the radiation unit according to the present invention, the fastener is a rivet. A mating hole is provided on the bottom surface of each limit platform. The rivet passes through the feed network board, and the top end of the rivet is placed in the mating hole and expanded for fixation.

[0015] For the radiation unit according to the present invention, the limiting structure includes at least one hook and at least one second positioning post extending towards the radiation sheet. The second positioning post abuts against the lower surface of the radiation sheet facing the feed network board; the hook penetrates the radiation sheet, and the end of the hook abuts against the upper surface of the radiation sheet.

[0016] For the radiation unit according to the present invention, the number of the hooks and the second positioning posts is two each. The two hooks are arranged diagonally, the two second positioning posts are arranged diagonally, and the connection line of the projection points of the two hooks on the radiation sheet is perpendicular to the connection line of the projection points of the two second positioning posts on the radiation sheet.

[0017] For the radiation unit according to the present invention, a first limiting hole corresponding to the second positioning post is provided on the radiation sheet, and the second positioning post penetrates through the first limiting hole;

[0018] A card slot corresponding to the hook is provided on the radiation sheet, and the hook penetrates through the card slot;

[0019] The hook includes two spaced hook seats. A buckle portion is provided at the end of each hook seat. The cross-sectional area of the buckle portion is larger than the cross-sectional area of the hook seat. The hook seat and the buckle portion are both made of elastic material.

[0020] In a second aspect, an embodiment of the present application provides a base station antenna, including at least one radiation unit with a support frame as described in any one of the above.

[0021] The radiation unit of the present invention is assembled by a physical fastening method without welding, which can meet the requirements of subsequent automated assembly.

[0022] The radiation unit of the present invention is assembled by fastening the radiation sheet to the support frame, removing the welding process in the assembly process, eliminating the welding risk, avoiding the rework and oxidation risks, and at the same time solving the positioning problem, being easy to assemble and fix, greatly reducing the requirements for assembly personnel, and at the same time being able to meet the automated requirements, greatly improving the production efficiency, and having a low overall cost. In addition, a plurality of limiting platforms can be provided on the support frame of the present invention, and each radiation sheet is respectively fixed to a limiting platform through a limiting structure, which can greatly improve the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of a radiation unit with a support frame provided by an embodiment of the present invention;

[0024] Figure 2 is a front structural schematic diagram of a support frame provided by an embodiment of the present invention;

[0025] Figure 3 is a back structural schematic diagram of a support frame provided by an embodiment of the present invention;

[0026] Figure 4 is an installation schematic diagram of a radiation unit with a support frame provided by an embodiment of the present invention.

[0027] Reference numerals: radiation unit with a support frame 1, support frame 11, radiation sheet 12, feed network board 13, fastener 14, hook 111, limiting platform 112, second positioning post 113, hook reinforcing rib 114, combined reinforcing rib 115, support column 116, first positioning post 117, mating hole 118. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiment", etc. in this specification mean that the described embodiment may include specific features, structures or characteristics, but not every embodiment must include these specific features, structures or characteristics. In addition, such expressions do not refer to the same embodiment. Further, when combining specific features, structures or characteristics with an embodiment, it has been shown that combining such features, structures or characteristics with other embodiments is within the knowledge of those skilled in the art, whether or not explicitly described.

[0030] In addition, in the specification and subsequent claims, certain terms are used to refer to specific components or parts. Those of ordinary skill in the art should understand that manufacturers may use different nouns or terms to refer to the same component or part. This specification and subsequent claims do not use the difference in names as a way to distinguish components or parts, but use the difference in the functions of components or parts as the criterion for distinction. The terms "comprising" and "including" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the term "connected" herein includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0031] Next, with reference to the accompanying drawings, through specific embodiments and their application scenarios, the radiation unit with a support frame provided by the embodiments of the present application will be described in detail.

[0032] Figures 1 to 4 The structure of a radiation unit with a support frame provided by this embodiment is shown. The radiation unit 1 with a support frame includes a support frame 11, a plurality of radiation sheets 12 and a feed network board 13. The radiation sheets 12 are installed on the upper surface of the support frame 11, and the feed network board 13 is installed on the lower surface of the support frame 11. Specifically, the support frame 11 is provided with a plurality of limiting platforms 112. Adjacent two limiting platforms 112 are connected to each other by reinforcing ribs. At least one limiting structure is provided on the upper surface of each limiting platform 112. Each radiation sheet 12 is fixed to a limiting platform 112 through the limiting structure. Preferably, the support frame 11 is made of plastic material.

[0033] The radiation unit 1 of the present invention is assembled by the fastening method of the radiation sheet 12 and the support frame 11, eliminating the welding process in the assembly process, eliminating the welding risk, avoiding the risks of repair and oxidation, being easy to assemble and fix, greatly reducing the requirements for assembly personnel, and at the same time meeting the automation requirements, which can greatly improve the production efficiency and the overall cost is low. In addition, a plurality of limiting platforms 112 can be provided on the support frame 11 of the present invention. Each radiation sheet 12 is fixed to a limiting platform 112 through the limiting structure, which can greatly improve the assembly efficiency.

[0034] As Figure 2 and Figure 3 shown, in this embodiment, the reinforcing ribs of the support frame 11 include hook reinforcing ribs 114 and combined reinforcing ribs 115. As Figure 2 and Figure 3 shown, the hook reinforcing ribs 114 are arranged at the bottom of the limiting platform 112, and the combined reinforcing ribs 115 are respectively connected to the hook reinforcing ribs 114 of two adjacent limiting platforms 112. Preferably, the combined reinforcing ribs 115 include strip-shaped reinforcing ribs and annular reinforcing ribs.

[0035] Optionally, in this embodiment, the support frame 11 is provided with a limiting platform array composed of M * N limiting platforms 112, where M and N are integers greater than 1. As Figure 2 and Figure 3 shown in the provided embodiment, the support frame 11 is provided with 4 * 3 limiting platforms 112, and every two adjacent limiting platforms 112 are connected to each other through reinforcing ribs, connecting the 4 * 3 limiting platforms 112 into a square structure. Preferably, two adjacent limiting platforms 112 in the same column are connected to each other through annular reinforcing ribs, and two adjacent limiting platforms 112 in the same row are connected to each other through strip-shaped reinforcing ribs. The present invention adopts the M * N array method, which can greatly improve the personnel assembly efficiency.

[0036] Optionally, a plurality of first positioning columns 117 are provided at the bottom of the combined reinforcing ribs 115 of the support frame 11. As Figure 3 shown, the first positioning columns 117 play a positioning role to prevent the rivet 14 from being stressed when the support frame 11 is subjected to an external force. Preferably, the plurality of first positioning columns 117 are arranged diagonally to each other, ensuring that normal assembly can still be carried out even when rotated 180 degrees, without the need for distinction, saving assembly time.

[0037] Optionally, a plurality of protruding support columns 116 are provided at the bottom of the combined reinforcing ribs 115 of the support frame 11. As Figure 3 shown, the support columns 116 are used to separate the radiation fins 12 from the feed network board 13, playing a role of support, positioning, and fixation.

[0038] Optionally, the support frame 11 and the feed network board 13 are fixedly connected through fasteners 14. As Figure 4 shown, preferably, a mating hole 118 is provided on the bottom surface of each limiting platform 112. Combining Figure 3 shown, the rivet 14 passes through the feed network board 13, and the top of the rivet 14 is placed into the mating hole 118 and expanded and fixed to prevent it from coming out, thereby installing the feed network board 13 on the bottom surface of the support frame 11.

[0039] Preferably, the limiting structure includes at least one hook 111 and at least one second positioning column 113. As Figure 1 andFigure 4 As shown, on each limiting platform 112 of the support frame 11, there are provided at least one hook 111 and at least one second positioning post 113 extending towards the radiation sheet 12. The second positioning post 113 abuts against the lower surface of the radiation sheet 12 facing the feed network board 13. The second positioning post 113 plays a limiting role and can prevent the radiation sheet 12 from shifting. The hook 111 penetrates through the radiation sheet 12, and the end of the hook 111 abuts against the upper surface of the radiation sheet 12. Through the mutual cooperation of the hook 111 and the second positioning post 113, that is, the hook 111 exerts a pulling force on the radiation sheet 12 towards the feed network board 13, and the second positioning post 113 exerts a pushing force on the radiation sheet 12 away from the feed network board 13, the radiation sheet 12 is stably fixed.

[0040] Optionally, the number of both the hook 111 and the second positioning post 113 is two. As Figure 1 and Figure 4 shown, the two hooks 111 and the two second positioning posts 113 are vertically offset and symmetrically designed at 45 degrees to each other, that is, the two hooks 111 are arranged diagonally, and the two second positioning posts 113 are arranged diagonally. Preferably, the connection line of the projection points of the two hooks 111 on the radiation sheet 12 is perpendicular to the connection line of the projection points of the two second positioning posts 113 on the radiation sheet 12, that is, the hook 111 and the second positioning post 113 are located at the four corners of a square. Through the staggered arrangement of the hook 111 and the second positioning post 113, the radiation sheet 12 can be stably fixed, ensuring the uniqueness of the direction of the radiation sheet 12.

[0041] Preferably, the hook 111 includes two spaced hook seats. The ends of the hook seats are both provided with buckle portions. The cross-sectional area of the buckle portion is larger than the cross-sectional area of the hook seat. Both the hook seat and the buckle portion have elasticity, that is, both the hook seat and the buckle portion are made of elastic materials. The elastic material is preferably plastic, etc. During actual assembly, press the two hooks 111 along the radial direction so that the two hooks 111 approach each other. After the buckle portion at the end of the buckle portion passes through the card slot, the bottom surface of the buckle portion will abut against the upper surface of the radiation sheet 12 through elasticity, thereby fixing the radiation sheet 12 on the support frame 11 and preventing the radiation sheet 12 from popping out.

[0042] Optionally, the radiation sheet 12 is provided with first limiting holes corresponding to the second positioning posts 113, and the second positioning posts 113 are inserted into the first limiting holes. The radiation sheet 12 is provided with card slots corresponding to the hooks 111, and the hooks 111 are inserted into the card slots. Preferably, the first limiting holes and the card slots are designed as circular.

[0043] Preferably, the radiation unit 1 with a support frame is a 5G radiation unit.

[0044] The present invention also provides a base station antenna, including at least one such as Figures 1 to 4The radiation unit 1 with a support frame as shown.

[0045] In summary, the radiation unit of the present invention is assembled by the fastening method of the radiation sheet and the support frame, eliminating the welding process in the assembly process, eliminating the welding risk, avoiding the repair and oxidation risks, solving the positioning problem at the same time, being easy to assemble and fix, greatly reducing the requirements for assembly personnel, meeting the automation requirements at the same time, greatly improving the production efficiency, and having a low overall cost. In addition, multiple limiting platforms can be provided on the support frame of the present invention, and each radiation sheet is respectively fixed to a limiting platform through a limiting structure, which can greatly improve the assembly efficiency.

[0046] Of course, the present invention can also have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A radiation unit with a support frame, characterized in that, It includes a support frame, a plurality of radiation fins, and a feed network board; the support frame is provided with a plurality of limiting platforms, and adjacent two of the limiting platforms are connected to each other by reinforcing ribs, and at least one limiting structure is provided on the upper surface of each of the limiting platforms; each of the radiation fins is fixed to one of the limiting platforms through the limiting structure; the feed network board is installed on the lower surface of the support frame; The reinforcing ribs of the support frame include hook reinforcing ribs and combined reinforcing ribs, the hook reinforcing ribs are provided at the bottom of the limiting platforms, and the combined reinforcing ribs connect the hook reinforcing ribs of adjacent two of the limiting platforms respectively; The combined reinforcing ribs include strip-shaped reinforcing ribs and annular reinforcing ribs; The support frame is provided with a limiting platform array composed of M*N limiting platforms, M and N are integers greater than 1, and adjacent two of the limiting platforms in the same column are connected to each other by the annular reinforcing ribs, and adjacent two of the limiting platforms in the same row are connected to each other by the strip-shaped reinforcing ribs; A plurality of first positioning posts are provided at the bottom of the combined reinforcing ribs of the support frame, and the plurality of first positioning posts are arranged diagonally to each other; and / or A plurality of support posts are provided at the bottom of the hook reinforcing ribs and / or the combined reinforcing ribs of the support frame.

2. The radiation unit according to claim 1, characterized in that The support frame is made of plastic material; and / or The support frame and the feed network board are fixedly connected by fasteners.

3. The radiation unit according to claim 2, wherein The fasteners are rivets, and a mating hole is provided at the bottom surface of each of the limiting platforms. The rivets pass through the feed network board, and the top ends of the rivets are placed into the mating holes and expanded for fixation.

4. The radiation unit according to claim 1, wherein The limiting structure includes at least one hook extending towards the radiation fin and at least one second positioning post. The second positioning post abuts against the lower surface of the radiation fin facing the feed network board; the hook penetrates through the radiation fin, and the end of the hook abuts against the upper surface of the radiation fin.

5. The radiation unit according to claim 4, wherein The number of both the hook and the second positioning post is two. The two hooks are arranged diagonally, the two second positioning posts are arranged diagonally, and the connecting line of the projection points of the two hooks on the radiation fin is perpendicular to the connecting line of the projection points of the two second positioning posts on the radiation fin.

6. The radiation unit according to claim 4, characterized in that A first limiting hole corresponding to the second positioning post is formed on the radiation fin, and the second positioning post penetrates through the first limiting hole; A card slot corresponding to the hook is formed on the radiation fin, and the hook penetrates through the card slot; The hook includes two spaced hook seats, and a buckle portion is provided at the end of each of the hook seats. The cross-sectional area of the buckle portion is larger than the cross-sectional area of the hook seat, and both the hook seat and the buckle portion are made of elastic materials.

7. A base station antenna, characterized in that, It includes at least one radiation unit having a support frame according to any one of claims 1 to 6.

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