CN114243285A

CN114243285A - Low-wind-resistance antenna device and antenna housing

Info

Publication number: CN114243285A
Application number: CN202111668253.2A
Authority: CN
Inventors: 杨仲凯; 周亮飞; 刘培涛; 王强; 肖飞; 段红彬
Original assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-03-25

Abstract

The invention relates to a low wind resistance antenna device and an antenna housing. The outer surface of the cover body is provided with at least one diversion trench arranged along the length direction of the cover body, and the outer surface of the cover body is also provided with a diversion rod correspondingly arranged in the diversion trench. The guide rod can rotate in the guide groove, and part of the outer wall surface of the guide rod is exposed through the notch of the guide groove. In the process of air flow passing through the outer surface of the cover body, the guide rod is rotationally arranged in the guide groove, and part of the outer wall surface of the guide rod is exposed through the notch of the guide groove, so that when the boundary layer air flow 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, the guide rod can change the boundary layer air flow on the outer surface of the cover body, the separation of the air flow is delayed, further the wind resistance of the antenna is greatly reduced, the pressure difference resistance of the antenna is greatly reduced, the safety of an iron tower is improved, the width size of the antenna does not need to be increased, and the obvious reduction of the wind resistance can be realized.

Description

Low-wind-resistance antenna device and antenna housing

Technical Field

The invention relates to the technical field of antennas, in particular to a low-wind-resistance antenna device and an antenna housing.

Background

With the development of mobile communication technology, frequency bands and systems are increasing, the number of base station antennas for transmitting and receiving wireless signals is increasing, the size of the antennas is also increasing, and the wind resistance of the antennas is increased, so that the load of an iron tower is increased, and the safety of the iron tower is affected. In the existing technology for reducing the wind load of the antenna, the wind resistance of the antenna is reduced by increasing the transition fillets around the radome. However, the design has the antenna house of big fillet to reduce partly windage, and the range that nevertheless the fillet increases is limited, and too big fillet can influence arranging of the inside oscillator of antenna house, leads to the width that needs extra increase antenna house, will produce bigger windage like this, and product weight is heavier simultaneously, and the load that leads to the iron tower is great, and the security is relatively poor.

Disclosure of Invention

Therefore, it is necessary to overcome the defects of the prior art, and provide a low wind resistance antenna device and an antenna housing, which can reduce the wind resistance of the antenna on the premise of not increasing the size of the antenna, thereby reducing the load of the iron tower and improving the safety of the iron tower.

The technical scheme is as follows: a radome, the radome comprising: the cover body, be provided with on the surface of cover body along its length direction at least one guiding gutter of arranging, still be equipped with on the surface of cover body and correspond and install the inside guide rod of guiding gutter, the guide rod can the guiding gutter internal rotation, a part outer wall of guide rod passes through the notch of guiding gutter exposes.

When the antenna housing is applied to an antenna device to work, air flow passes through the outer surface of the housing body, the guide rods are rotatably arranged in the guide grooves, and part of the outer wall surface of each guide rod is exposed through the notches of the guide grooves, so that boundary layer air flow on the outer surface of the housing body flows on the outer surface of the housing body, the guide rods are correspondingly driven to rotate, the guide rods can change the boundary layer air flow on the outer surface of the housing body, the separation of the air flow is delayed, the wind resistance of the antenna is greatly reduced, the differential pressure resistance of the antenna is greatly reduced, the safety of an iron tower is improved, the width size of the antenna does not need to be increased, and the wind resistance can be remarkably reduced.

In one embodiment, the guide rod is an insulating rod and is formed by integrated extrusion forming, integrated injection molding and integrated plastic suction molding.

In one embodiment, a first cross-section of the guide rod is taken 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 centrosymmetric figure, and the edge of the first cross section is provided with an inner concave part which is concave towards the center of the first cross section or an outer convex part which is convex towards the direction far away from the center of the first cross section.

In one embodiment, the concave surface of the inner concave part and/or the convex surface of the outer convex part is provided with a rough surface.

In one embodiment, the radome further comprises two end covers respectively and correspondingly arranged at two ends of the radome body; the end cover includes the end panel and set up in curb plate on the end panel, be equipped with on the curb plate towards keep away from in the concave recess of dodging that establishes of the surface direction of cover body, the tip of guiding gutter is located dodge in the concave recess.

In one embodiment, a second cross section of the cover body is taken in a direction perpendicular to the central axis of the cover body, the second cross section is square, and four corners of the second cross section are rounded corners and/or oblique corners respectively.

In one embodiment, the outer surface of the cover body is provided with a first air deflector and a second air deflector which are arranged at intervals, and the first air deflector and the second air deflector enclose to form the diversion trench.

In one embodiment, the flow guide groove is a plurality of flow guide grooves, and the flow guide grooves are arranged on the outer surface of the cover body at intervals.

In one embodiment, a straight line passing through the center axis of the shell body and perpendicular to the outer surface of the shell body is defined as a reference line M, and the plurality of flow channels are arranged axisymmetrically with respect to the reference line M.

In one embodiment, the first air deflector, the second air deflector and the cover body are integrally extruded, molded and formed by integral injection molding and integrally formed by plastic suction molding; or the first air deflector and the second air deflector are detachably arranged on the outer surface of the cover body; or the first air deflector and the second air deflector are fixedly bonded on the outer surface of the cover body.

In one embodiment, the first air guiding plate and the second air guiding plate are both arc-shaped plates.

In one embodiment, the flow 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 that of the guide groove.

The utility model provides a low windage antenna device, low windage antenna device include the antenna house, still including set up in the inside oscillator of cover body.

When the antenna device with the low wind resistance works, the air flow passes through the outer surface of the cover body, the guide rod is rotationally arranged in the guide groove, and part of the outer wall surface of the guide rod is exposed through the notch of the guide groove, so that the boundary layer air flow on the outer surface of the cover body correspondingly drives the guide rod to rotate when flowing on the outer surface of the cover body, the guide rod can change the boundary layer air flow on the outer surface of the cover body to flow, the separation of the air flow is delayed, the wind resistance of the antenna is greatly reduced, the differential pressure resistance of the antenna is greatly reduced, the safety of an iron tower is improved, the width size of the antenna does not need to be increased, and the remarkable reduction of the wind resistance can be realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an antenna cover according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cover body of a radome according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

fig. 4 is a schematic structural view illustrating a guide rod is mounted on a radome body of the radome according to an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is an enlarged schematic view of FIG. 5 at B;

FIG. 7 is a first cross-sectional view of a guide rod according to an embodiment of the present invention;

FIG. 8 is a schematic view of a first cross-section of a guide rod according to another embodiment of the present invention;

fig. 9 is a structural view of a first section of a guide rod according to another embodiment of the present invention.

10. A cover body; 11. a diversion trench; 111. a notch; 12. a first air deflector; 13. a second air deflector; 14. a second cross-section; 20. a guide rod; 21. a first cross-section; 211. an inner concave portion; 212. an outer convex portion; 30. an end cap; 31. an end panel; 32. a side plate; 321. avoiding the concave part.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 to 3, fig. 1 shows a structural schematic diagram of a radome according to an embodiment of the present invention, fig. 2 shows a structural schematic diagram of a radome body 10 of the radome according to an embodiment of the present invention, and fig. 3 shows an enlarged structural schematic diagram of fig. 2 at a. An embodiment of the present invention provides an antenna radome, which includes a radome body 10. The outer surface of the cover body 10 is provided with at least one flow guide groove 11 arranged along the length direction thereof, and the outer surface of the cover body 10 is also provided with a flow guide rod 20 correspondingly installed inside the flow guide groove 11. The guide rod 20 can rotate 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.

Referring to fig. 4 to 6, fig. 4 shows a structural schematic diagram of a radome body 10 of a radome according to an embodiment of the present invention, where a guide rod 20 is mounted on the radome body, fig. 5 shows another view angle structural schematic diagram of fig. 4, and fig. 6 shows an enlarged structural schematic diagram of fig. 5 at B. When the antenna housing is applied to an antenna device to work, airflow passes through the outer surface of the housing body 10, the guide rods 20 are rotatably arranged in the guide grooves 11, and part of the outer wall surface of each guide rod 20 is exposed through the notches 111 of the guide grooves 11, so that when boundary layer airflow on the outer surface of the housing body 10 flows on the outer surface of the housing body 10, the guide rods 20 are correspondingly driven to rotate, the guide rods 20 can change the boundary layer airflow on the outer surface of the housing body 10 to flow, the separation of the airflow is delayed, the wind resistance of the antenna is greatly reduced, the pressure difference resistance of the antenna is greatly reduced, the safety of an iron tower is improved, the width size of the antenna does not need to be increased, and the remarkable reduction of the wind resistance can be realized.

It should be noted that, the length direction refers to a direction from the bottom end of the antenna housing to the top end of the antenna housing after the antenna is installed on the iron tower in a normal posture.

In one embodiment, the guide rod 20 is an insulating rod, and the guide rod 20 includes, but is not limited to, a guide rod formed by integral extrusion molding, integral injection molding, and integral plastic molding.

Referring to fig. 7 to 9, fig. 7 to 9 respectively show structural schematic diagrams of the first cross section 21 of the guide rod 20 in three different embodiments. In one embodiment, the first cross-section 21 of the air guide rod 20 is taken in a direction perpendicular to the central axis of the air guide rod 20. The first cross-section 21 is circular; alternatively, the first cross section 21 is a central symmetrical figure, and the edge of the first cross section 21 is provided with an inner concave part 211 which is concave towards the center of the first cross section 21 or an outer convex part 212 which is convex towards the direction far away from the center of the first cross section 21. Therefore, the effect of delaying the separation of the air flow is better, the stability of the cover body 10 is better, and the wind resistance of the antenna can be greatly reduced.

Referring to fig. 7 to 9, in one embodiment, the concave surface of the concave portion 211 and/or the convex surface of the convex portion 212 are provided with rough surfaces. Therefore, the effect of delaying the separation of the air flow is better, the stability of the cover body 10 is better, and the wind resistance of the antenna can be greatly reduced.

Referring to fig. 1, 5 and 6, in one embodiment, the radome further includes two end caps 30 respectively mounted at two ends of the radome body 10. Specifically, the end cap 30 includes an end plate 31 and a side plate 32 provided on the end plate 31. The side plate 32 is provided with an escape recess 321 recessed in a direction away from the outer surface of the cover body 10, and the end of the baffle groove 11 is provided in the escape recess 321. Thus, the end cap 30 is provided with the avoiding concave portion 321, and in the process of being installed on the top end or the bottom end of the cover body 10, the avoiding concave portion 321 is smoothly inserted into the end portion of the diversion trench 11, so that better assembling efficiency can be ensured; in addition, the two end covers 30 are respectively sealed at the two ends of the mask body 10, which not only can ensure the sealing performance of the mask body 10, but also can limit the guide rod 20 in the guide groove 11, i.e. only allow the guide rod 20 to rotate in the guide groove 11, and can prevent the guide rod 20 from separating out from the guide groove 11.

Referring to fig. 1, 2, 5 and 6, in one embodiment, a second cross section 14 of the mask body 10 is taken in a direction perpendicular to the central axis of the mask body 10, the second cross section 14 is square, and four corners of the second cross section 14 are rounded and/or beveled, respectively. Thus, the four corners of the second cross-section 14 may be rounded, or may be beveled, or two of them may be rounded and the other two may be beveled. Thus, by setting the four corners of the second cross section 14 having a square shape to four oblique angles, the wind resistance of the antenna can be reduced.

Of course, it should be noted that the second cross section 14 is not limited to the square shape in the above embodiment, and may be designed into other shapes, which are not limited herein and may be set according to actual requirements.

Note that the center axis of the cover body 10 is a line connecting the center positions of the end plates 31 of the two end caps 30.

Referring to fig. 1, 3 and 6, in an embodiment, a first air guiding plate 12 and a second air guiding plate 13 are disposed on an outer surface of the hood body 10 at an interval, and the first air guiding plate 12 and the second air guiding plate 13 enclose to form a guiding gutter 11.

Referring to fig. 1, 3 and 6, in one embodiment, the flow guide groove 11 is a plurality of flow guide grooves 11, and the plurality of flow guide grooves 11 are arranged on the outer surface of the mask body 10 at intervals.

Specifically, when the number of the guiding channels 11 is multiple, the number of the first air deflectors 12 and the number of the second air deflectors 13 are multiple, and the multiple first air deflectors 12 and the multiple second air deflectors 13 are enclosed to form multiple guiding channels 11 in a one-to-one correspondence manner. Correspondingly, the number of the guide rods 20 is multiple, and the guide rods 20 are rotatably arranged in the guide grooves 11 in a one-to-one correspondence manner. Therefore, when the number of the guide rods 20 is large enough, the separation effect of delaying the airflow is good, and the wind resistance of the antenna can be greatly reduced. Specifically, the number of the baffle grooves 11 illustrated in fig. 1 in the present embodiment is four, and the four baffle grooves 11 are specifically provided at intervals on the windward side of the shroud body 10. Of course, the number of the flow guide grooves 11 may also be, for example, one, two, three, five or other numbers, which are not limited herein.

Referring to fig. 2, 3 and 6, in one embodiment, a straight line passing through the central axis of the mask body 10 and perpendicular to the outer surface of the mask body 10 is defined as a reference line M, and the plurality of guide grooves 11 are arranged axisymmetrically with respect to the reference line M. Therefore, the effect of delaying the separation of the air flow is better, the stability of the cover body 10 is better, and the wind resistance of the antenna can be greatly reduced.

Specifically, the number of channels 11 on one side of the reference line on the outer surface of the shell body 10 is, for example, one, two, three, or another number, and the number of channels 11 on the other side of the reference line is, for example, one, two, three, or another number.

Of course, the plurality of flow channels 11 on the outer surface of the cover body 10 need not be arranged symmetrically with respect to the reference axis, and may be set according to actual requirements.

Referring to fig. 2 and 3, in an embodiment, the first air guiding plate 12, the second air guiding plate 13 and the cover body 10 are integrally formed by extrusion, injection and plastic; or, the first air guiding plate 12 and the second air guiding plate 13 are detachably disposed on the outer surface of the cover body 10; alternatively, the first air guiding plate 12 and the second air guiding plate 13 are fixed to the outer surface of the hood body 10 by bonding.

Referring to fig. 2, 3 and 6, in an embodiment, the first air guiding plate 12 and the second air guiding plate 13 are both arc-shaped plates. Therefore, the first air deflector 12 and the second air deflector 13 are both arc-shaped plates, on one hand, the inner wall of the guide groove 11 formed by the first air deflector 12 and the second air deflector 13 in a surrounding manner is an arc-shaped wall, so that the guide rod 20 can rotate smoothly in the guide groove 11; on the other hand, the outer side surfaces of the first air guiding plate 12 and the second air guiding plate 13 facing away from each other are arc-shaped surfaces, so that the wind resistance of the antenna can be further reduced.

Referring to fig. 2, 3 and 6, in one embodiment, the baffle slot 11 extends from the bottom end face of the mask body 10 to the top end face of the mask body 10. The length of the guide rod 20 is the same as that of the guide groove 11. Therefore, the length of the diversion trench 11 is designed to be long enough, so that the length of the diversion rod 20 can be designed to be large enough correspondingly, thereby being beneficial to delaying the separation effect of the airflow and greatly reducing the wind resistance of the antenna. In addition, since the length of the guide rod 20 is the same as that of the guide groove 11, the guide rod 20 is just completely installed in the guide groove 11.

As an alternative, the diversion trench 11 does not necessarily extend to the bottom end face and/or the top end face of the cover body 10, and may also extend to other positions on the outer surface of the cover body 10, which are not limited herein, and may be set according to actual requirements.

Referring to fig. 1 to 3, in an embodiment, a low wind resistance antenna device includes the radome of any one of the above embodiments, and further includes an oscillator disposed inside the radome body 10.

When the antenna device with low wind resistance works, air flow passes through the outer surface of the cover body 10, because the guide rod 20 is rotatably arranged in the guide groove 11, and part of the outer wall surface of the guide rod 20 is exposed through the notch 111 of the guide groove 11, thus when the boundary layer air flow on the outer surface of the cover body 10 flows on the outer surface of the cover body 10, the guide rod 20 is correspondingly driven to rotate, the guide rod 20 can change the boundary layer air flow on the outer surface of the cover body 10, the separation of air flow is delayed, the wind resistance of the antenna is greatly reduced, the pressure difference resistance of the antenna is greatly reduced, the safety of an iron tower is improved, the width size of the antenna does not need to be increased, and the obvious reduction of the wind resistance can be realized.

The "escape recess 321" may be a "part of the side plate 32", that is, the "escape recess 321" and "the other part of the side plate 32" are integrally formed; the "escape recess 321" may be made separately from the "other part of the side plate 32" and may be integrated with the "other part of the side plate 32". In one embodiment, as shown in FIG. 1, the "relief recess 321" is a part of the "side plate 32" that is integrally formed.

It should be noted that the "outer protrusion 212" may be a part of the "guide rod 20", that is, the "outer protrusion 212" and the "other part of the guide rod 20" are integrally formed; the "convex portion 212" may be made separately and then combined with the "other portion of the air guide bar 20" into a whole. In one embodiment, as shown in FIG. 1, the "male portion 212" is a part of the "draft bar 20" that is integrally formed.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A radome, comprising:

the cover body, be provided with on the surface of cover body along its length direction at least one guiding gutter of arranging, still be equipped with on the surface of cover body and correspond and install the inside guide rod of guiding gutter, the guide rod can the guiding gutter internal rotation, a part outer wall of guide rod passes through the notch of guiding gutter exposes.

2. The radome of claim 1, wherein the guide rod is an insulating rod, and the guide rod is formed by integrated extrusion molding, integrated injection molding and integrated plastic uptake molding.

3. The radome of claim 1, wherein a first cross section of the guide rod is taken in a direction perpendicular to a central axis of the guide rod; the first cross section is circular; or the first cross section is a centrosymmetric figure, and the edge of the first cross section is provided with an inner concave part which is concave towards the center of the first cross section or an outer convex part which is convex towards the direction far away from the center of the first cross section.

4. The radome of claim 3, wherein the concave surface of the concave portion and/or the convex surface of the convex portion is provided with a rough surface.

5. The radome of claim 1, further comprising two end caps respectively mounted at two ends of the radome body; the end cover includes the end panel and set up in curb plate on the end panel, be equipped with on the curb plate towards keep away from in the concave recess of dodging that establishes of the surface direction of cover body, the tip of guiding gutter is located dodge in the concave recess.

6. The radome of claim 1, wherein a second cross section of the cover body is taken in a direction perpendicular to a central axis of the cover body, the second cross section has a square shape, and four vertex angles of the second cross section are rounded corners and/or beveled corners, respectively.

7. The radome of claim 1, wherein a first air deflector and a second air deflector are disposed on an outer surface of the radome body at an interval, and the first air deflector and the second air deflector enclose to form the guiding gutter.

8. The radome of claim 7, wherein the guide groove is plural, and the plurality of guide grooves are arranged on the outer surface of the radome body at intervals.

9. The radome of claim 8, wherein a straight line passing through the central axis of the radome body and perpendicular to the outer surface of the radome body is defined as a reference line M, and the plurality of the channels are arranged axisymmetrically with respect to the reference line M.

10. The radome of claim 7, wherein the first air deflector, the second air deflector and the radome body are integrally formed by extrusion, injection and plastic; or the first air deflector and the second air deflector are detachably arranged on the outer surface of the cover body; or the first air deflector and the second air deflector are fixedly bonded on the outer surface of the cover body.

11. The radome of claim 7, wherein the first wind deflector and the second wind deflector are both curved plates.

12. The radome of claim 1, wherein the flow guide grooves extend from a bottom end surface of the radome body to a top end surface of the radome body; the length of the guide rod is the same as that of the guide groove.

13. A low wind resistance antenna device, characterized in that it comprises a radome according to any one of claims 1 to 12, further comprising an oscillator arranged inside the radome body.