Low wind resistance antenna device and radome

Abstract

The present invention relates to a low wind resistance antenna device and an antenna cover, wherein the antenna cover comprises a cover body. The outer surface of the cover body is provided with at least one guide groove arranged along the length direction thereof, and the outer surface of the cover body is also provided with a guide rod correspondingly installed inside the guide groove. The guide rod can rotate in the guide groove, and a part of the outer wall surface of the guide rod is exposed through the notch of the guide groove. In the process of airflow passing through the outer surface of the cover body, since the guide rod is rotatably arranged in the guide groove, and a part of the outer wall surface of the guide rod is exposed through the notch of the guide groove, when the boundary layer airflow on the outer surface of the cover body flows on the outer surface of the cover body, the guide rod is correspondingly driven to rotate, and the guide rod can change the boundary layer airflow on the outer surface of the cover body, delay the separation of the airflow, and thus greatly reduce the wind resistance of the antenna, greatly reduce the pressure difference resistance of the antenna, improve the safety of the iron tower, and achieve a significant reduction in wind resistance without increasing the width of the antenna.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to a low wind resistance antenna device and a radome. Background Art

[0002] With the development of mobile communication technology, the frequency bands and standards are constantly increasing. The number of base station antennas for transmitting and receiving wireless signals is increasing, and the size of antennas is getting larger and larger. The wind resistance of antennas is increasing, which increases the load on the tower and affects the safety of the tower. In the existing technology for reducing the wind load of antennas, the wind resistance of antennas is reduced by increasing the transition radius around the antenna cover. However, antenna covers designed with large radius can reduce some wind resistance, but the increase in radius is limited. Excessively large radius will affect the arrangement of the oscillators inside the antenna cover, resulting in the need to increase the width of the antenna cover, which will produce greater wind resistance. At the same time, the product is heavy, resulting in a large load on the tower and poor safety. Summary of the invention

[0003] Based on this, it is necessary to overcome the defects of the prior art and provide a low wind resistance antenna device and antenna cover, which can reduce the wind resistance of the antenna without increasing the size of the antenna, thereby reducing the load on the tower and improving the safety of the tower.

[0004] The technical solution is as follows: an antenna cover, which includes: a cover body, the outer surface of which is provided with at least one guide groove arranged along its length direction, and the outer surface of the cover body is also provided with a guide rod correspondingly installed inside the guide groove, the guide rod can rotate in the guide groove, and a part of the outer wall surface of the guide rod is exposed through the notch of the guide groove.

[0005] When the above-mentioned antenna cover is used on the antenna device, when the airflow passes through the outer surface of the cover body, since the guide rod is rotatably arranged in the guide groove, and a part of the outer wall surface of the guide rod is exposed through the notch of the guide groove, when the boundary layer airflow on the outer surface of the cover body flows on the outer surface of the cover body, the guide rod is driven to rotate accordingly. The guide rod can change the boundary layer airflow on the outer surface of the cover body, delay the separation of the airflow, and thus greatly reduce the wind resistance of the antenna, greatly reduce the pressure difference resistance of the antenna, improve the safety of the tower, and achieve a significant reduction in wind resistance without increasing the width of the antenna.

[0006] In one embodiment, the guide rod is an insulating rod, and the guide rod is formed by integrated extrusion molding, integrated injection molding, or integrated vacuum molding.

[0007] In one embodiment, a first cross-section of the guide rod is obtained in a direction perpendicular to the central axis of the guide rod; the first cross-section is circular; or, the first cross-section is a centrally symmetrical figure, and an edge of the first cross-section is provided with a concave portion concave toward the center of the first cross-section or a convex portion convex toward a direction away from the center of the first cross-section.

[0008] In one embodiment, a rough surface is provided on the concave surface of the inner concave portion and / or the convex surface of the outer convex portion.

[0009] In one embodiment, the antenna cover also includes two end covers respectively installed at the two ends of the cover body; the end cover includes an end panel and a side panel arranged on the end panel, and the side panel is provided with an avoidance recess recessed toward the direction away from the outer surface of the cover body, and the end of the guide groove is arranged in the avoidance recess.

[0010] In one embodiment, a second cross section of the cover body is obtained in a direction perpendicular to the central axis of the cover body, the second cross section is square, and four vertex angles of the second cross section are rounded corners and / or beveled corners.

[0011] In one of the embodiments, a first air guide plate and a second air guide plate are provided on the outer surface of the cover body, and the first air guide plate and the second air guide plate are enclosed to form the guide groove.

[0012] In one embodiment, there are a plurality of guide grooves, and the plurality of guide grooves are arranged at intervals on the outer surface of the cover body.

[0013] In one of the embodiments, a straight line passing through the central axis of the cover body and perpendicular to the outer surface of the cover body is defined as a reference line M, and the plurality of guide grooves are arranged symmetrically about the reference line.

[0014] In one embodiment, the first air guide plate, the second air guide plate and the cover body are integrally extruded, injection molded, or vacuum-formed; or, the first air guide plate and the second air guide plate are detachably arranged on the outer surface of the cover body; or, the first air guide plate and the second air guide plate are adhesively fixed to the outer surface of the cover body.

[0015] In one embodiment, the first air guide plate and the second air guide plate are both arc-shaped plates.

[0016] In one of the embodiments, the guide groove extends from the bottom end surface of the cover body to the top end surface of the cover body; the length of the guide rod is the same as the length of the guide groove.

[0017] A low wind resistance antenna device comprises the antenna cover and a vibrator arranged inside the cover body.

[0018] When the above-mentioned low wind resistance antenna device is working, when the airflow passes through the outer surface of the cover body, since the guide rod is rotatably arranged in the guide groove, and a part of the outer wall surface of the guide rod is exposed through the notch of the guide groove, when the boundary layer airflow on the outer surface of the cover body flows on the outer surface of the cover body, the guide rod is driven to rotate accordingly. The guide rod can change the boundary layer airflow on the outer surface of the cover body, delay the separation of the airflow, and thus greatly reduce the wind resistance of the antenna, greatly reduce the pressure difference resistance of the antenna, improve the safety of the iron tower, and achieve a significant reduction in wind resistance without increasing the width of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0021] Figure 1 A schematic structural diagram of a radome according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic structural diagram of a cover body of a radome according to an embodiment of the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A;

[0024] Figure 4 It is a structural schematic diagram of a radome in which a guide rod is installed on the radome body according to an embodiment of the present invention;

[0025] Figure 5 for Figure 4 Another perspective structural diagram of;

[0026] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at B;

[0027] Figure 7 It is a structural schematic diagram of a first cross section of a guide rod according to an embodiment of the present invention;

[0028] Figure 8is a structural schematic diagram of a first cross section of a guide rod according to another embodiment of the present invention;

[0029] Fig. 9 The figure is a schematic structural diagram of a first cross section of a guide rod according to another embodiment of the present invention.

[0030] 10. hood body; 11. guide groove; 111. notch; 12. first air guide plate; 13. second air guide plate; 14. second section; 20. guide rod; 21. first section; 211. inner recess; 212. outer protrusion; 30. end cover; 31. end panel; 32. side panel; 321. avoidance recess. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] See also Figures 1 to 3 , Figure 1 FIG. 1 is a schematic diagram showing the structure of a radome according to an embodiment of the present invention. Figure 2 FIG. 1 is a schematic structural diagram of a radome body 10 of an embodiment of the present invention. Figure 3 Shows Figure 2 An enlarged structural diagram at A. An embodiment of the present invention provides a radome, the radome comprising a radome body 10. The outer surface of the radome body 10 is provided with at least one guide groove 11 arranged along its length direction, and the outer surface of the radome body 10 is also provided with a guide rod 20 correspondingly installed inside the guide groove 11. The guide rod 20 can rotate in the guide groove 11, and a portion of the outer wall surface of the guide rod 20 is exposed through the notch 111 of the guide groove 11.

[0033] See also Figures 4 to 6 , Figure 4 The schematic diagram of the structure of the antenna cover according to one embodiment of the present invention is a schematic diagram of a guide rod 20 installed on the cover body 10. Figure 5 Shows Figure 4 Another perspective structural diagram, Figure 6 Shows Figure 5The enlarged structural diagram at B. When the above-mentioned antenna cover is applied to the antenna device, when the airflow passes through the outer surface of the cover body 10, since the guide rod 20 is rotatably arranged in the guide groove 11, and a part of the outer wall surface of the guide rod 20 is exposed through the notch 111 of the guide groove 11, when the boundary layer airflow on the outer surface of the cover body 10 flows on the outer surface of the cover body 10, the guide rod 20 is driven to rotate accordingly. The guide rod 20 can change the boundary layer airflow on the outer surface of the cover body 10, delay the separation of the airflow, and thus greatly reduce the wind resistance of the antenna, greatly reduce the pressure difference resistance of the antenna, improve the safety of the iron tower, and achieve a significant reduction in wind resistance without increasing the width of the antenna.

[0034] It should be noted that the length direction refers to the direction from the bottom end of the radome to the top end of the radome after the antenna is installed on the tower in a normal posture.

[0035] In one embodiment, the guide rod 20 is an insulating rod, and the guide rod 20 includes but is not limited to being formed by integrated extrusion molding, integrated injection molding, and integrated vacuum molding.

[0036] See also Figures 7 to 9 , Figures 7 to 9 The schematic diagrams of the structures of the first section 21 of the guide rod 20 in three different embodiments are respectively shown. In one embodiment, the first section 21 of the guide rod 20 is obtained in a direction perpendicular to the central axis of the guide rod 20. The first section 21 is circular; or, the first section 21 is a centrally symmetrical figure, and the edge of the first section 21 is provided with an inner concave portion 211 concave toward the center of the first section 21 or an outer convex portion 212 convex toward the direction away from the center of the first section 21. In this way, the effect of delaying the separation of the airflow is better, the stability of the cover body 10 is better, and the wind resistance of the antenna can be greatly reduced.

[0037] See also Figures 7 to 9 In one embodiment, a rough surface is provided on the concave surface of the inner concave portion 211 and / or the convex surface of the outer convex portion 212. In this way, the effect of delaying the separation of the airflow is better, the stability of the cover body 10 is better, and the wind resistance of the antenna can be greatly reduced.

[0038] See also Figure 1 , Figure 5 and Figure 6In one embodiment, the antenna cover further includes two end caps 30 respectively mounted at the two ends of the cover body 10. Specifically, the end cap 30 includes an end panel 31 and a side panel 32 arranged on the end panel 31. The side panel 32 is provided with an escape recess 321 which is recessed in a direction away from the outer surface of the cover body 10, and the end of the guide groove 11 is arranged in the escape recess 321. In this way, since the end cap 30 is provided with the escape recess 321, during the process of being mounted on the top or bottom end of the cover body 10, the escape recess 321 is smoothly inserted into the end of the guide groove 11, thereby ensuring good assembly efficiency; in addition, the two end caps 30 are respectively blocked at the two ends of the cover body 10, which can not only ensure the sealing of the cover body 10, but also limit the guide rod 20 in the guide groove 11, that is, only allow the guide rod 20 to rotate in the guide groove 11, and prevent the guide rod 20 from escaping from the guide groove 11 to the outside.

[0039] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 In one embodiment, the second cross section 14 of the cover body 10 is obtained in a direction perpendicular to the central axis of the cover body 10, the second cross section 14 is square, and the four vertex angles of the second cross section 14 are rounded and / or beveled. In this way, the four vertex angles of the second cross section 14 can all be rounded, or can all be beveled, or two of them are rounded and the other two are beveled. In this way, by setting the four vertex angles of the square second cross section 14 as four beveled angles, the wind resistance of the antenna can be reduced.

[0040] Of course, it should be noted that the second cross section 14 is not limited to the square shape in the above embodiment, and can also be designed into other shapes, which are not limited here and can be set according to actual needs.

[0041] It should also be noted that the central axis of the cover body 10 refers to a line connecting the center positions of the end panels 31 of the two end covers 30 .

[0042] See also Figure 1 , Figure 3 and Figure 6 In one embodiment, a first air guide plate 12 and a second air guide plate 13 are provided on the outer surface of the cover body 10 , and the first air guide plate 12 and the second air guide plate 13 are enclosed to form a guide groove 11 .

[0043] See also Figure 1 , Figure 3 and Figure 6 In one embodiment, there are a plurality of guide grooves 11 , and the plurality of guide grooves 11 are arranged at intervals on the outer surface of the cover body 10 .

[0044] Specifically, when there are multiple guide grooves 11, the first guide plates 12 and the second guide plates 13 are both multiple, and the multiple first guide plates 12 and the multiple second guide plates 13 are enclosed in a one-to-one correspondence to form multiple guide grooves 11. Correspondingly, there are multiple guide rods 20, and the multiple guide rods 20 are rotatably arranged in the multiple guide grooves 11 in a one-to-one correspondence. In this way, when the number of guide rods 20 is large enough, the effect of delaying the separation of the airflow is better, thereby greatly reducing the wind resistance of the antenna. Specifically, the attached in this embodiment Figure 1 The illustrated guide grooves 11 are provided in four numbers, and the four guide grooves 11 are specifically provided at intervals on the windward surface of the cover body 10. Of course, the number of the guide grooves 11 can also be one, two, three, five or other numbers, which are not limited here.

[0045] See also Figure 2 , Figure 3 and Figure 6 In one embodiment, a straight line passing through the central axis of the cover body 10 and perpendicular to the outer surface of the cover body 10 is defined as a reference line M, and a plurality of guide grooves 11 are arranged symmetrically about the reference line. In this way, the effect of delaying the separation of the airflow is better, the stability of the cover body 10 is better, and the wind resistance of the antenna can be greatly reduced.

[0046] Specifically, there are one, two, three or other number of guide grooves 11 on one side of the reference line on the outer surface of the cover body 10, and there are one, two, three or other number of guide grooves 11 on the other side of the reference line.

[0047] Of course, the multiple guide grooves 11 on the outer surface of the cover body 10 do not need to be arranged symmetrically about the reference line axis, and can be arranged according to actual needs.

[0048] See also Figure 2 and Figure 3 In one embodiment, the first air guide plate 12, the second air guide plate 13 and the cover body 10 are integrally extruded, injection molded, or vacuum-formed; or, the first air guide plate 12 and the second air guide plate 13 are detachably arranged on the outer surface of the cover body 10; or, the first air guide plate 12 and the second air guide plate 13 are adhesively fixed to the outer surface of the cover body 10.

[0049] See also Figure 2 , Figure 3 and Figure 6In one embodiment, the first wind guide plate 12 and the second wind guide plate 13 are both arc-shaped plates. In this way, the first wind guide plate 12 and the second wind guide plate 13 are both arc-shaped plates. On the one hand, the inner wall of the guide groove 11 formed by the first wind guide plate 12 and the second wind guide plate 13 is an arc-shaped wall, which can facilitate the smooth rotation of the guide rod 20 in the guide groove 11; on the other hand, the outer side surfaces of the first wind guide plate 12 and the second wind guide plate 13 facing away from each other are both correspondingly arc-shaped surfaces, which can further reduce the wind resistance of the antenna.

[0050] See also Figure 2 , Figure 3 and Figure 6 In one embodiment, the guide groove 11 extends from the bottom end surface of the cover body 10 to the top end surface of the cover body 10. The length of the guide rod 20 is the same as the length of the guide groove 11. In this way, the length of the guide groove 11 is designed to be long enough, so that the length of the guide rod 20 can be designed to be large enough accordingly, which is beneficial to delay the separation of the airflow and greatly reduce the wind resistance of the antenna. In addition, since the length of the guide rod 20 is the same as the length of the guide groove 11, the guide rod 20 is just completely installed in the guide groove 11.

[0051] As an optional solution, the guide groove 11 does not have to extend to the bottom end surface and / or the top end surface of the cover body 10, and can also extend to other positions on the outer surface of the cover body 10. This is not limited here and can be set according to actual needs.

[0052] See also Figures 1 to 3 In one embodiment, a low wind resistance antenna device includes the antenna cover of any of the above embodiments, and also includes a vibrator arranged inside the cover body 10.

[0053] When the above-mentioned low wind resistance antenna device is working, when the airflow passes through the outer surface of the cover body 10, since the guide rod 20 is rotatably arranged in the guide groove 11, and a part of the outer wall surface of the guide rod 20 is exposed through the notch 111 of the guide groove 11, when the boundary layer airflow on the outer surface of the cover body 10 flows on the outer surface of the cover body 10, the guide rod 20 is driven to rotate accordingly. The guide rod 20 can change the boundary layer airflow on the outer surface of the cover body 10, delay the separation of the airflow, and thus greatly reduce the wind resistance of the antenna, greatly reduce the pressure difference resistance of the antenna, improve the safety of the iron tower, and achieve a significant reduction in wind resistance without increasing the width of the antenna.

[0054] It should be noted that the "avoidance recess 321" can be "a part of the side panel 32", that is, the "avoidance recess 321" is integrally formed with "other parts of the side panel 32"; it can also be an independent component that can be separated from "other parts of the side panel 32", that is, the "avoidance recess 321" can be independently manufactured and then combined with "other parts of the side panel 32" into a whole. Figure 1 As shown, in one embodiment, the “avoidance recess 321 ” is a part of the “side panel 32 ” that is integrally formed.

[0055] It should be noted that the "external protrusion 212" can be "a part of the guide rod 20", that is, the "external protrusion 212" is integrally formed with the "other parts of the guide rod 20"; it can also be an independent component that can be separated from the "other parts of the guide rod 20", that is, the "external protrusion 212" can be manufactured independently and then combined with the "other parts of the guide rod 20" into a whole. Figure 1 As shown, in one embodiment, the "external protrusion 212" is a part of the "guide rod 20" that is integrally formed.

[0056] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A radome, characterized in that: The radome comprises: A cover body, wherein the outer surface of the cover body is provided with at least one guide groove arranged along the length direction thereof, and the outer surface of the cover body is also provided with a guide rod correspondingly installed inside the guide groove, the guide rod can rotate in the guide groove, and a part of the outer wall surface of the guide rod is exposed through the notch of the guide groove; the outer surface of the cover body is provided with a first air guide plate and a second air guide plate arranged at intervals, and the first air guide plate and the second air guide plate enclose the guide groove.

2. The radome according to claim 1, characterized in that: The guide rod is an insulating rod, and the guide rod is formed by integrated extrusion molding, integrated injection molding, or integrated vacuum molding.

3. The radome according to claim 1, characterized in that: A first cross-section of the guide rod is obtained in a direction perpendicular to the central axis of the guide rod; the first cross-section is a circle; or, the first cross-section is a centrally symmetrical figure, and an edge of the first cross-section is provided with a concave portion concave toward the center of the first cross-section or a convex portion convex toward a direction away from the center of the first cross-section.

4. The radome according to claim 3, characterized in that: A rough surface is provided on the concave surface of the inner concave portion and / or the convex surface of the outer convex portion.

5. The radome according to claim 1, characterized in that: The antenna cover also includes two end covers respectively installed at the two ends of the cover body; the end cover includes an end panel and a side panel arranged on the end panel, and the side panel is provided with an avoidance recess recessed toward the direction away from the outer surface of the cover body, and the end of the guide groove is arranged in the avoidance recess.

6. The radome according to claim 1, characterized in that: A second cross section of the cover body is obtained in a direction perpendicular to the central axis of the cover body, the second cross section is square, and four vertex angles of the second cross section are rounded corners and / or beveled corners.

7. The radome according to claim 1, characterized in that: There are a plurality of guide grooves, and the plurality of guide grooves are arranged at intervals on the outer surface of the cover body.

8. The radome according to claim 7, characterized in that: A straight line passing through the central axis of the cover body and perpendicular to the outer surface of the cover body is defined as a reference line M, and the plurality of guide grooves are arranged axially symmetrically about the reference line.

9. The radome according to claim 1, characterized in that: The first air guide plate, the second air guide plate and the cover body are integrally extruded, injection-molded or vacuum-molded; or, the first air guide plate and the second air guide plate are detachably arranged on the outer surface of the cover body; or, the first air guide plate and the second air guide plate are adhesively fixed to the outer surface of the cover body.

10. The radome according to claim 1, characterized in that The first air guide plate and the second air guide plate are both arc-shaped plates.

11. The radome according to claim 1, characterized in that The guide groove extends from the bottom end surface of the cover body to the top end surface of the cover body; the length of the guide rod is the same as the length of the guide groove.

12. A low wind resistance antenna device, characterized in that: The low wind resistance antenna device comprises the antenna cover according to any one of claims 1 to 11, and also comprises a vibrator arranged inside the cover body.

Images