Antenna reflector

Abstract

The present invention is applicable to the technical field of base station antenna equipment, and provides an antenna reflector. The antenna reflector of the present invention comprises a plurality of lobed bodies, an inner connecting ring and an outer connecting ring, wherein the plurality of lobed bodies are assembled to form a parabolic reflecting surface, each lobed body is provided with a back rib, and the back ribs of the plurality of lobed bodies are sequentially arranged at intervals along the circumference of the reflecting surface, the inner connecting ring is detachably connected to the plurality of back ribs, the outer connecting ring is arranged at the periphery of the inner connecting ring and is detachably connected to the plurality of lobed bodies, and since the lobed bodies are detachable, the plurality of lobed bodies can be overlapped and packaged, which greatly reduces the packaging size, facilitates hoisting and transportation, and greatly saves transportation costs.

Description

Technical Field

[0001] The present invention relates to the technical field of base station antenna equipment, and in particular to an antenna reflector. Background Art

[0002] Transmitting or receiving antennas that work in the meter-wave, centimeter-wave, millimeter-wave and other wave bands are collectively called microwave antennas. Microwaves are mainly propagated by space waves. In order to increase the communication distance, the antenna is erected higher. Among microwave antennas, parabolic antennas are the most widely used, and parabolic reflectors are one of the main components of parabolic microwave antennas.

[0003] Large-aperture microwave antennas have the advantages of long transmission distance and high gain, and have a large market demand in the modern mobile communication market. Currently, large-aperture parabolic reflectors are mostly integrated structures. Due to their large size and high loading and transportation costs, they have increasingly lost their competitive advantage in the increasingly competitive base station antenna market. Summary of the invention

[0004] The object of the present invention is to provide an antenna reflector, aiming to solve the technical problem of high loading and transportation costs of existing large-caliber parabolic reflectors.

[0005] The present invention is implemented in this way: an antenna reflector comprises:

[0006] A plurality of petal bodies are assembled to form a parabolic reflecting surface, each of the petal bodies is provided with a back rib, and the back ribs of the plurality of petal bodies are arranged at intervals along the circumference of the reflecting surface;

[0007] An inner connecting ring, detachably connected to the plurality of back ribs respectively; and

[0008] The outer connecting ring is arranged at the periphery of the inner connecting ring and is detachably connected to the plurality of back ribs respectively.

[0009] In one embodiment of the present invention, each of the back ribs is provided with a splicing assembly which is detachably connected to the inner connecting ring and the outer connecting ring respectively, and the splicing assembly includes a base provided on the petal body, and a fixing plate provided on the base and extending in a direction away from the petal body, and the inner connecting ring and the outer connecting ring are detachably connected to the corresponding fixing plates respectively.

[0010] In one embodiment of the present invention, the fixing plate is tilted toward the center line of the reflecting surface, and the inner connecting ring and the outer connecting ring are respectively attached to a side of the corresponding fixing plate away from the center line of the reflecting surface.

[0011] In one embodiment of the present invention, the fixing plate further comprises a supporting portion extending toward one side of the fixing plate, and the inner connecting ring and the outer connecting ring respectively abut against a side of the corresponding supporting portion away from the petal body.

[0012] In one embodiment of the present invention, the splicing assembly further includes screws, and the inner connecting ring and the outer connecting ring are respectively arranged on the corresponding fixing plates through the corresponding screws.

[0013] In one embodiment of the present invention, the curvature of the back rib is the same as the curvature of the petal body.

[0014] In one embodiment of the present invention, the petal body includes an arcuate edge located at an end of the inner connecting ring away from the outer connecting ring, and an arcuate flange located at an end of the outer connecting ring away from the inner connecting ring.

[0015] In one embodiment of the present invention, the antenna reflector further comprises a back ring arranged on a side of the inner connecting ring away from the outer connecting ring, and the plurality of petal bodies are respectively detachably connected to the back ring.

[0016] In one embodiment of the present invention, the antenna reflector further comprises a plurality of L-shaped connecting pieces, and the back ring is detachably connected to the petal body via the connecting pieces.

[0017] In one embodiment of the present invention, the antenna reflector includes six petal bodies, and two back ribs are spaced apart on each petal body.

[0018] The antenna reflector provided by the present invention comprises a plurality of lobed bodies, an inner connecting ring and an outer connecting ring, wherein the plurality of lobed bodies are assembled to form a parabolic reflecting surface, each lobed body is provided with a back rib, the back ribs of the plurality of lobed bodies are arranged in sequence and at intervals along the circumference of the reflecting surface, the inner connecting ring is detachably connected to the plurality of back ribs, the outer connecting ring is arranged on the outer periphery of the inner connecting ring and is detachably connected to the plurality of lobed bodies, and since the lobed bodies are detachable, the plurality of lobed bodies can be overlapped and packaged, thereby greatly reducing the packaging size, facilitating lifting and transportation, and greatly saving transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of an antenna reflector provided by an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the three-dimensional structure of a petal body provided by an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the three-dimensional structure of the back muscles provided by an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the three-dimensional structure of the inner connecting ring and the outer connecting ring provided in an embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the back circle provided in an embodiment of the present invention.

[0025] Among them, the reference numerals in the figure are:

[0026] 1-valve body; 2-dorsal circle;

[0027] 3- back muscles; 31- base;

[0028] 32-fixed plate; 321-supporting part;

[0029] 4-inner connecting ring; 5-outer connecting ring;

[0030] 6-connecting piece; 61-vertical portion;

[0031] 62- transverse portion; 711- first mounting hole;

[0032] 712-first fixing hole; 721-second mounting hole;

[0033] 722 - second fixing hole; 731 - third mounting hole;

[0034] 732-third fixing hole. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0036] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0037] In order to illustrate the technical solution of the present invention, a detailed description is given below in conjunction with specific drawings and embodiments.

[0038] See also Figure 1 , an embodiment of the present invention provides an antenna reflector, comprising:

[0039] A plurality of petal bodies 1, wherein the plurality of petal bodies 1 are assembled to form a parabolic reflecting surface (i.e., the reflecting surface of the antenna reflector), a back rib 3 is provided on the back of each petal body 1, and the back ribs 3 of the plurality of petal bodies 1 are arranged at intervals along the circumference of the reflecting surface, and the back ribs 3 of the plurality of petal bodies 1 are arranged symmetrically in a radial shape, wherein the back side of the petal body 1 refers to a side of the petal body 1 away from the reflecting surface;

[0040] The inner connecting ring 4 is detachably connected to the plurality of back ribs 3, and specifically can be but not limited to connected by screws; and

[0041] The outer connecting ring 5 is arranged at the outer periphery of the inner connecting ring 4 and is detachably connected to the plurality of back ribs 3 , and can be connected by screws, but is not limited to the connection.

[0042] The antenna reflector of the embodiment of the present invention includes a plurality of lobed bodies 1, an inner connecting ring 4 and an outer connecting ring 5, wherein the plurality of lobed bodies 1 are assembled to form a parabolic reflecting surface, each lobed body 1 is provided with a back rib 3, and the back ribs 3 of the plurality of lobed bodies 1 are arranged at intervals along the circumference of the reflecting surface, the inner connecting ring 4 is respectively detachably connected to the plurality of back ribs 3, the outer connecting ring 5 is arranged on the outer periphery of the inner connecting ring 4 and is respectively detachably connected to the plurality of lobed bodies 1. Since the lobed bodies 1 are detachable, the plurality of lobed bodies 1 can be overlapped and packaged, which greatly reduces the packaging size, facilitates lifting and transportation, and greatly saves transportation costs. At the same time, since each lobed body 1 is respectively connected to the inner connecting ring 4 and the outer connecting ring 5, the assembled antenna reflector is more solid.

[0043] Optionally, the shapes and sizes of the petal bodies 1 may be the same or different. Preferably, in order to facilitate unified processing and manufacturing, the shapes and sizes of the petal bodies 1 are set to be the same, so that the petal bodies 1 can be made from the same set of molds, which greatly reduces the production cost of the petal bodies 1. In addition, during transportation, multiple petal bodies 1 can be completely overlapped, which can greatly reduce the packaging size, facilitate lifting and transportation, and greatly save transportation costs.

[0044] Furthermore, when the number of the petal bodies 1 is small, it is not convenient to hoist or transport them due to the large volume of a single petal body 1; when the number of the petal bodies 1 is too large, the on-site assembly efficiency will be reduced. Considering the convenience of transportation and assembly efficiency, the number of the petal bodies 1 should be set to 3 to 8, preferably 6, so as to facilitate transportation while ensuring good assembly efficiency. It is understandable that the number of petal bodies 1 can also be appropriately modified according to the actual needs, for example, the number of petal bodies 1 can also be more than 8, and this embodiment is not limited here.

[0045] Specifically, among the six petal bodies 1 in the embodiment of the present invention, each petal body 1 is in the shape of a parabola divided into six equal parts, which is formed by cutting a complete parabola into six equal parts, and specifically by cutting six planes passing through the center line of the parabola respectively. The end of the petal body 1 away from the center line of the parabola (reflecting surface) is defined as the distal end, and the end close to the center line of the parabola (reflecting surface) is defined as the proximal end. The arc length of the petal body 1 gradually decreases from the distal end to the proximal end.

[0046] Alternatively, if Figure 2 As shown, the back rib 3 can be arranged on the back side of the lobed body 1 by means of a connecting piece. For example, the back rib 3 can be riveted to the back side of the lobed body 1 by means of rivets before leaving the factory or at the installation site of the antenna reflector. According to the actual situation, in order to omit the assembly step of the back rib 3, the back rib 3 can also be integrally formed with the lobed body 1. This embodiment is not limited here.

[0047] In one embodiment of the present invention, Figures 1 to 4 Each back rib 3 is provided with a splicing assembly which is detachably connected to the inner connecting ring 4 and the outer connecting ring 5 respectively. The splicing assembly includes a base 31 arranged on the back of the petal body 1, and a fixing plate 32 arranged on the base 31 and extending in a direction away from the petal body 1. Two fixing plates 32 corresponding to the inner connecting ring 4 and the outer connecting ring 5 are arranged on the base 31 at intervals. The base 31 is provided with inner connecting rings 4 and outer connecting rings 5 ​​at intervals, which are detachably connected to the corresponding fixing plates 32 respectively, and can be connected by screws, but is not limited to.

[0048] Furthermore, the fixing plate 32 is inclined toward the direction close to the center line of the parabola (reflecting surface), and the inner connecting ring 4 and the outer connecting ring 5 are respectively attached to the side of the corresponding fixing plate 32 away from the center line of the parabola (reflecting surface). The shape of the petal body 1 is special, and the arc length of the petal body 1 gradually decreases from the distal end to the proximal end. The inner connecting ring 4 and the outer connecting ring 5 apply a centripetal push force toward the center line of the parabola (reflecting surface) to the fixing plate 32, so that the side surfaces of each petal body 1 are tightly connected to achieve an almost seamless connection effect. The structure of the antenna reflector is compact, and the mechanical strength of the antenna reflector is greatly improved.

[0049] Specifically, Figure 3 and Figure 4 As shown, the splicing assembly also includes screws, and a first fixing hole 712 can be set on the fixing plate 32, and first mounting holes 711 are respectively set on the inner connecting ring 4 and the outer connecting ring 5 corresponding to the first fixing hole 712. The screws pass through the first mounting holes 711 and are threadedly connected to the corresponding first fixing holes 712, so that the inner connecting ring 4 and the outer connecting ring 5 are set on the corresponding fixing plate 32, which is convenient for disassembly and assembly, thereby reducing the workload of on-site installation of the base station.

[0050] Furthermore, the fixing plate 32 also includes a support portion 321 extending toward a side away from the proximal end, and one end of the inner connecting ring 4 and the outer connecting ring 5 close to the petal body 1 respectively abuts against the side of the corresponding support portion 321 away from the petal body 1. On the one hand, the support portion 321 can play a positioning role, so that the connection position of the inner connecting ring 4 and the corresponding different fixing plates 32 is the same, and the connection position of the outer connecting ring 5 and the corresponding different fixing plates 32 is the same, so as to ensure that each fixing plate 32 is subjected to uniform force, so that the centripetal resistance force of each petal body 1 is equal, which effectively improves the stability of the installation of the antenna reflector and improves the assembly efficiency on the other hand.

[0051] Furthermore, at least one back rib 3 is provided on each petal body 1, and a plurality of back ribs 3 are evenly arranged in the circumferential direction, so that the inner connecting ring 4 and the outer connecting ring 5 respectively and evenly apply centripetal resisting force to the petal body 1. In the antenna reflector of the embodiment of the present invention, a total of 6 petal bodies 1 are included, each petal body 1 is provided with 2 back ribs 3, that is, a total of 12 back ribs 3 are provided, and the 12 back ribs 3 are evenly distributed at a spacing of 30° in the circumferential direction, and are radially symmetrically arranged, which effectively improves the stability and mechanical strength of the antenna reflector installation.

[0052] Preferably, the curvature of the back rib 3 is the same as that of the lobed body 1, specifically, the curvature of the base 31 of the back rib 3 is the same as that of the lobed body 1. When the base 31 of the back rib 3 is riveted to the back of the lobed body 1 with rivets, the base 31 fits tightly against the lobed body 1, thereby effectively improving the riveting strength between the base 31 and the lobed body 1, so that the back rib 3 is stably connected to the lobed body 1.

[0053] In one embodiment of the present invention, Figure 1 and Figure 5 As shown, the antenna reflector also includes a back ring 2 arranged on the side of the inner connecting ring 4 away from the outer connecting ring 5. The back ring 2 is an annular ring, and the shape can be but is not limited to a circular ring structure. The multiple petal bodies 1 are respectively detachably connected to the back ring 2 to further improve the installation stability and mechanical strength of the antenna reflector.

[0054] Furthermore, the antenna reflector also includes a plurality of L-shaped connecting plates 6, which are evenly arranged along the circumference of the reflecting surface, and the connecting plates 6 include a vertical portion 61 and a transverse portion 62 having one end connected to one end of the vertical portion 61, wherein the vertical portion 61 is riveted to the back ring 2, and the transverse portion 62 is detachably connected to the plurality of petal bodies 1, that is, the back ring 2 is detachably connected to the petal body 1 via the connecting plates 6.

[0055] Specifically, Figure 2 and Figure 5 As shown, the vertical portion 61 of the connecting piece 6 is provided with a plurality of second mounting holes 721 at intervals, the transverse portion 62 is provided with a plurality of third mounting holes 731 at intervals, the second mounting holes 721 corresponding to the plurality of connecting pieces 6 on the back ring 2 are respectively provided with second fixing holes 722, the back side of the petal body 1 is provided with third fixing holes 732 corresponding to the plurality of third mounting holes 731 of the connecting piece 6, and the third fixing holes 732 of the plurality of petal bodies 1 are evenly distributed along the circumference of the reflecting surface, and rivets are used to pass through the second mounting holes 721 and riveted to the corresponding second fixing holes 722 to achieve a rigid connection between the vertical portion 61 and the back ring 2, thereby effectively reducing the workload of on-site installation of the base station; and screws are used to pass through the third mounting holes 731 and threadedly connected to the corresponding third fixing holes 732 to achieve a detachable connection between the transverse portion 62 and the petal body 1, which is convenient for disassembly and assembly.

[0056] Specifically, combined Figure 1 and Figure 2 The lobed body 1 includes an arcuate edge located at the end of the inner connecting ring 4 away from the outer connecting ring 5, and an arcuate flange located at the end of the outer connecting ring 5 away from the inner connecting ring 4, that is, the arcuate edge is located at the proximal end of the lobed body 1, and the arcuate flange is located at the distal end of the lobed body 1. When a plurality of lobed bodies 1 are combined, the arcuate edges of the plurality of lobed bodies 1 form a complete circular edge, so that when the plurality of lobed bodies 1 press against each other, they are evenly stressed; a plurality of arcuate flanges form a complete circular flange, and the arcuate flanges can increase the contact area of ​​adjacent lobed bodies 1, so that the plurality of lobed bodies 1 are more securely assembled together, effectively improving the stability and mechanical strength of the antenna reflector installation.

[0057] Preferably, the diameter of a circle with the largest diameter of the reflective surface is defined as D, and the diameter of the back ring 2 is The diameter of the inner connecting ring 4 is The diameter of the outer connecting ring 5 is At this time, the stability and mechanical strength of the antenna reflector composed of multiple petal bodies 1 are optimal.

[0058] The specific processing process of the antenna reflector according to the embodiment of the present invention is further described below:

[0059] 1. Prepare the required parts, including one complete parabolic structure, one back ring 2, twelve back ribs 3, one inner connecting ring 4, and one outer connecting ring 5;

[0060] 2. Place the back rib 3 on the back of the parabolic structure, connect the inner connecting ring 4 and the outer connecting ring 5 to the back rib 3 by screws, and the back rib 3 is provided with through holes for riveting with the parabolic structure. Use a special tool for positioning, and make the same number of through holes on the parabolic structure through the through holes on the back rib 3, and then rivet it with rivets;

[0061] 3. Place the back ring 2 on the back of the parabolic structure and use a special tool to position it so that the back ring 2 and the parabolic structure are concentric. A plurality of connecting pieces 6 are connected to the back ring 2. The same number of third fixing holes 732 are provided on the parabolic structure through the third mounting holes 731 on the connecting pieces 6 of the back ring 2.

[0062] 4. Remove the inner connecting ring 4 and the outer connecting ring 5, remove the back ring 2, and divide the parabolic structure into six equal parts into six petal bodies 1.

[0063] In order to save costs, the petal body 1, the back ring 2, the inner connecting ring 4 and the outer connecting ring 5 can be transported to the base station site before being assembled. The assembly process is as follows:

[0064] 1. Place the inner connecting ring 4 and the outer connecting ring 5 on a dedicated mounting bracket, place a petal body 1 on the inner connecting ring 4 and the outer connecting ring 5, align the first fixing holes 712 of the plurality of back ribs 3 with the corresponding first mounting holes 711 of the inner connecting ring 4 and the outer connecting ring 5, tighten and fix them with screws, and assemble the remaining five petal bodies 1 in sequence;

[0065] 2. Place the back ring 2 on the back of the parabola formed by assembling the six petal bodies 1, align the third mounting hole 731 on the connecting piece 6 of the back ring 2 with the third fixing hole 732 on the petal body 1, and then tighten and fix them with screws;

[0066] 3. After the above assembly process, the six petal bodies 1 are spliced ​​into a complete parabolic antenna reflector.

[0067] The above descriptions are merely optional embodiments of the present invention and are 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 in the protection scope of the present invention.

Claims

1. An antenna reflector, characterized in that: include: A plurality of petal bodies are assembled to form a parabolic reflecting surface, each of the petal bodies is provided with a back rib, and the back ribs of the plurality of petal bodies are evenly spaced along the circumference of the reflecting surface; An inner connecting ring, detachably connected to the plurality of back ribs respectively; and An outer connecting ring, arranged at the periphery of the inner connecting ring and detachably connected to the plurality of back ribs respectively; Each of the back ribs is provided with a splicing assembly detachably connected to the inner connecting ring and the outer connecting ring, the splicing assembly comprises a base provided on the petal body, and a fixing plate provided on the base and extending in a direction away from the petal body, the inner connecting ring and the outer connecting ring are detachably connected to the corresponding fixing plates respectively; The antenna reflector further comprises a back ring arranged on a side of the inner connecting ring away from the outer connecting ring, and the plurality of petal bodies are respectively detachably connected to the back ring.

2. The antenna reflector according to claim 1, characterized in that The fixing plate is tilted toward the direction close to the center line of the reflecting surface, and the inner connecting ring and the outer connecting ring are respectively attached to a side of the corresponding fixing plate away from the center line of the reflecting surface.

3. The antenna reflector according to claim 1, characterized in that The fixing plate further includes a support portion extending toward one side of the fixing plate, and the inner connecting ring and the outer connecting ring respectively abut against a side of the corresponding support portion away from the petal body.

4. The antenna reflector according to claim 1, characterized in that The splicing assembly further includes screws, and the inner connecting ring and the outer connecting ring are respectively arranged on the corresponding fixing plates through the corresponding screws.

5. The antenna reflector according to any one of claims 1 to 4, characterized in that: The curvature of the back rib is the same as the curvature of the petal body.

6. The antenna reflector according to any one of claims 1 to 4, characterized in that: The petal body comprises an arcuate edge located at one end of the inner connecting ring away from the outer connecting ring, and an arcuate flange located at one end of the outer connecting ring away from the inner connecting ring.

7. The antenna reflector according to claim 1, characterized in that The antenna reflector further comprises a plurality of L-shaped connecting pieces, and the back ring is detachably connected to the petal body via the connecting pieces.

8. The antenna reflector according to any one of claims 1 to 4, characterized in that: The antenna reflector includes six petal bodies, and two back ribs are arranged on each petal body at intervals.

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