WO2023246332A1

WO2023246332A1 - New-type lens antenna outer cover, and antenna device

Info

Publication number: WO2023246332A1
Application number: PCT/CN2023/092502
Authority: WO
Inventors: 李梓萌
Original assignee: 广州司南技术有限公司
Priority date: 2022-06-20
Filing date: 2023-05-06
Publication date: 2023-12-28
Also published as: CN114937864A

Abstract

Disclosed in the present application is a new-type lens antenna outer cover, comprising an outer cover, a support partition and an upper end cap. The outer cover comprises an outer cover body with openings on two sides, and a lower end cap arranged at the opening on one side of the outer cover body, and the outer cover body and the lower end cap are integrally formed; the support partition is arranged inside the outer cover; and the upper end cap is arranged at the opening on the other side of the outer cover body, so as to seal the outer cover.

Description

A new type of lens antenna cover and antenna device

Technical field

The present application relates to the technical field of lens antenna devices, and specifically to a new type of lens antenna housing and antenna device.

Background technique

Today's lens antenna covers are generally manufactured by hand lay-up FRP process. The hand lay-up process not only takes a long time and has low production efficiency, but also requires bonding of special-shaped structures, which makes the mechanical structure fragile. It will exist when working outdoors in bad weather, such as when a typhoon comes. Big risk. In addition, the cost of hand-laying FRP lens radomes is very expensive, and the hand-laying process can easily lead to uneven wall thickness of the radome, resulting in poor electrical performance.

Chinese patent CN209266574U discloses a dielectric lens multi-beam antenna device, which includes a dielectric lens column, an array antenna, a cover, an end cover and a mounting bracket. The cover is an integrated antenna cover; the dielectric lens column and the array antenna are covered together in the cover. ;The end caps are located at both ends of the outer cover; the outer cover is installed on the mounting bracket. This patent splits the radome into a radome, an upper end cover and a lower end cover for separate designs, which has the following shortcomings: 1. Since the lens material is mainly supported by the lower end cover, rivets or screws are generally used to connect the lower end cover and the outer cover. Then use waterproof silicone glue to bond it together. When the weight of the lens material is too large (more than 30kg), the design will easily fail to support the weight of the lens material. And as outdoor use gradually ages, this risk will greatly increase. If If used outdoors for a long time, the lens material will easily fall off, and the waterproofing of the entire antenna will easily fail, making the antenna unable to work. 2. The special-shaped structure easily makes the pultrusion process complicated or impossible to manufacture. The mold cost of a single outer cover is more than 500,000 yuan, and the cost of a single outer cover is also more than 3,000 yuan, making the overall cost of the antenna very high and not cost-effective. .

US patent US9819094B2 discloses an antenna system with a lens. The lens antenna system includes a first row of radiating elements with a first longitudinal axis and a first angle, and a second row of radiating elements with a second longitudinal axis and a second angle. and a radio frequency lens having a third longitudinal axis. The first longitudinal axis, the second longitudinal axis and the third longitudinal axis are all aligned, so that the azimuth elements that generate the beam through the radiating element array are used for the radio frequency lens. In addition, the multi-beam antenna device system also includes a radome that accommodates the radiating element array and the radio frequency lens. The radome is composed of two parts, one is a semicircular structure and the other is a U-shaped structure. First, put these two parts together. An outer cover is formed by bonding and connecting with rivets and glue, and then the outer cover and the upper and lower end caps form the outer cover of the antenna. Although this arrangement can reduce manufacturing difficulty and cost, it still does not solve the problem of unreliable structure. If used outdoors for a long time, the lens material will easily fall off, and the waterproofing of the entire antenna will easily fail, making the antenna unable to work.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the present application provides a new lens antenna cover with a simple manufacturing process, low cost and stable structure, and an antenna device having the same, which has great market promotion value.

The technical solutions adopted by this application to solve its problems are:

A new type of lens antenna housing, including:

An outer cover, which includes an outer cover main body with openings on both sides and a lower end cover disposed at one side opening of the outer cover main body, and the outer cover main body and the lower end cover are integrally formed;

A support partition arranged inside the outer cover;

An upper end cap is provided at the opening on the other side of the housing body to seal the housing.

The lens antenna cover of the present application is integrally formed by the cover main body and the lower end cover. The integrated structure is not only waterproof, but also ensures that its strength can support the lens material installed in the cover to avoid damage caused by long-term outdoor use. Risk of lens material falling off, stable structure and high reliability.

Further, the outer cover is provided with a plurality of first reinforcing ribs.

Therefore, providing a plurality of first reinforcing ribs can further increase the strength of the outer cover and extend its service life.

Further, the outer cover is integrally formed of plastic using a rotational molding process.

Therefore, the rotational molding process can not only produce large-sized shells to meet the size requirements of the outer cover, but also has low manufacturing costs. The mold fee and single product price are 15%-20% of other processes. In addition, the outer cover made by rotational molding process has the characteristics of high load-bearing strength, strong pressure resistance, and wear resistance.

Further, the outer cover is made of polyethylene material.

Since the dielectric constant of polyethylene material is low (around 2.3), the dielectric loss is also small, so it is suitable for manufacturing antenna covers.

Further, the polyethylene is high density polyethylene or low density polyethylene or linear low density polyethylene.

Further, the polyethylene is modified polyethylene, which includes chlorinated polyethylene, chlorosulfonated polyethylene, cross-linked polyethylene and blended modified polyethylene.

Further, an anti-ultraviolet UV agent is added to the polyethylene.

Therefore, by adding an anti-UV agent to the polyethylene, the problem of aging caused by ultraviolet radiation when the cover is used outdoors for a long time can be avoided, thereby extending the service life of the cover.

Further, the wall thickness of the outer cover is 2 to 20 mm.

Further, the outer cover is integrally formed of plastic using a blow molding process.

Further, the support partition is a closed annular columnar structure or a U-shaped structure with an opening.

Further, a plurality of second reinforcing ribs are provided on the support partition.

Therefore, providing a plurality of second reinforcing ribs can further increase the strength of the supporting partition and increase its service life.

Further, the support partition is integrally formed by a rotational molding process.

Further, the support partition is made of plastic or fiberglass and is integrally formed using a pultrusion process.

Therefore, the support partition is integrally formed using the rotational molding process or the pultrusion process. Not only is the mold manufacturing simple, but the mold cost and single product price are also low.

Further, the upper end cover is integrally formed by blister molding, rotational molding or injection molding.

Therefore, the upper end cap made by the blister process has the advantages of low price and high production efficiency.

In addition, this application also provides an antenna device, including the above-mentioned lens antenna cover, array antenna and lens, wherein:

The support partition is used to accommodate the array antenna;

The lens is arranged inside the outer cover, and the lower end cap is used to support the lens.

To sum up, the new lens antenna housing and antenna device of the present application have the following beneficial effects:

(1) The lens antenna cover of this application is integrally formed by the main body of the cover and the lower end cover. The integrated structure is not only waterproof, but also ensures that its strength can support the lens material installed in the cover to avoid prolonged outdoor use. There is no risk of lens material falling off after use. The structure is stable and reliable.

(2) For the lens antenna cover of this application, the rotational molding process can not only produce a large-sized housing to meet the size requirements of the cover, but also has a low manufacturing cost. Its mold fee and single product price are 15% of those of other processes. -20%. In addition, the outer cover made by rotational molding process has the characteristics of high load-bearing strength, strong pressure resistance, and wear resistance.

(3) Since the dielectric constant of the polyethylene material of the lens antenna cover of the present application is low (around 2.3), the dielectric loss is also small, so it is suitable for manufacturing the antenna cover. In addition, by adding an anti-UV agent to the polyethylene, the aging problem of the cover caused by ultraviolet radiation when used outdoors for a long time can be avoided, thereby extending the service life of the cover.

(4) The support partition of the lens antenna cover of this application is integrally formed using a rotational molding process or a pultrusion process. Not only is the mold manufacturing simple, but the mold cost and single product price are also low.

(5) The lens antenna cover of this application uses an upper end cover made by a blister process, which has the advantages of low price and high production efficiency.

Description of the drawings

Figure 1 is a schematic structural diagram of the lens antenna cover of the present application;

Figure 2 is a schematic structural diagram of the lens antenna cover of the present application after the upper end cover is hidden;

Figure 3 is a schematic structural diagram of the outer cover of the lens antenna cover of the present application;

Figure 4 is a schematic structural diagram of Figure 3 from another perspective;

Figure 5 is a schematic structural diagram of the support partition in the lens antenna housing of the present application;

Figure 6 is a schematic structural diagram of the upper end cover of the lens antenna housing of the present application;

Figure 7 is an exploded schematic diagram of the antenna device of the present application;

Figure 8 is a schematic structural diagram of Figure 7 from another perspective;

Figure 9 is a schematic structural diagram of the antenna device of the present application;

Figure 10 is an exploded schematic diagram of an antenna device according to another embodiment of the present application;

Figure 11 is a schematic structural diagram of Figure 10 from another perspective;

Figure 12 is a schematic structural diagram of an antenna device according to another embodiment of the present application.

Among them, the reference symbols have the following meanings:
1. Lens antenna cover; 11. Cover; 111. Cover main body; 1111. Main body part; 1112.
Attachment part; 112. Lower end cover; 1121. Through hole; 113. First reinforcing rib; 12. Support partition; 13. Upper end cover; 12. Support partition; 121. First support member; 1211. Second reinforcement rib ; 122. Second support member; 123. Third support member; 2. Lens; 3. Array antenna.

Detailed ways

For better understanding and implementation, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

In the description of this application, it should be noted that the terms "upper", "lower", "front", The orientations or positional relationships indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions shown in the accompanying drawings or positional relationship is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing specific embodiments only and is not intended to limit the application.

Embodiment 1

Referring to Figures 1-6, this application first provides a new type of lens antenna housing 1, which includes a housing 11, a supporting partition 12 and an upper end cover 13. The housing 11 includes a housing body 111 with openings on both sides and a The lower end cover 112 at the side opening, the cover main body 111 and the lower end cover 112 are integrally formed. The support partition 12 is arranged inside the outer cover 11 to support and strengthen the outer cover 11 . The upper end cap 13 is provided at the other opening of the outer cover body 111 to seal the outer cover 11 .

In this embodiment, the outer cover 11 is integrally formed of plastic using a rotational molding process. Of course, in other embodiments, it can also be integrally molded from plastic using a blow molding process, which is not limited here.

Therefore, the outer cover 11 is integrally formed by the outer cover main body 111 and the lower end cover 112. The integrally formed structure is not only waterproof, but also ensures that its strength can support the lens material installed in the outer cover 11 to avoid damage caused by long-term outdoor use. Risk of lens material falling off, stable structure and high reliability. In addition, the rotational molding process can not only produce a large-sized shell to meet the size requirements of the outer cover 11, but also has a low manufacturing cost. The mold fee and single product price are 15%-20% of those of other processes. In addition, the outer cover 11 made by the rotational molding process has the characteristics of high load-bearing strength, strong pressure resistance, and wear resistance.

In this embodiment, a number of first reinforcing ribs 113 are provided on the outer surface of the cover main body 111 and the end surface of the lower end cover 112 facing away from the cover main body 111, thereby increasing the strength of the cover 11 and improving the performance of the cover. Increases its service life.

Specifically, the outer cover 11 is made of polyethylene (polyethylene, PE for short) material. Since the polyethylene (PE) material has a low dielectric constant (around 2.3) and a small dielectric loss, it is suitable for manufacturing antenna covers. The polyethylene (PE) may be high density polyethylene (HDPE) or low density polyethylene (LDPE) or linear low density polyethylene (LLDPE).

Of course, in other embodiments, the polyethylene can also be modified polyethylene, including chlorinated polyethylene (CPE), chlorosulfonated polyethylene (CSM), cross-linked polyethylene (XLPE) and blend modification Polyethylene, not restricted here.

In addition, in this embodiment, an anti-UV agent is added to the polyethylene, thereby preventing the outer cover 11 from aging due to ultraviolet radiation when used outdoors for a long time, thereby extending the service life of the outer cover 11 .

In this embodiment, the wall thickness of the outer cover 11 is between 2 and 20 mm.

Referring again to Figures 1-6, the cover main body 111 includes a main body part 1111 and an accessory part 1112. The main body part 1111 is a cylinder with a semicircular or approximately semicircular cross section, and the accessory part 1112 is a U-shaped or approximately semicircular cross section. It is a U-shaped hollow frame, and the cylinder and the hollow frame are connected to each other. The attachment portion 1112 is used to accommodate the support partition 12 , and the outer shape of the support partition 12 is adapted to the internal shape of the attachment portion 1112 . Specifically, the support partition 12 is a closed annular columnar structure or a U-shaped structure with an opening, and a second reinforcing rib 1211 is provided on the outer surface of the support partition 12 .

In this embodiment, the support partition 12 includes a first support member 121 and a second support member 122 with the same structure and symmetrically arranged left and right. Both the first support member 121 and the second support member 122 are closed annular columnar structures. , and are arranged symmetrically around the circumferential direction, forming a larger annular columnar structure. Of course, in other embodiments, the first support member 121 and the second support member 122 may also be a U-shaped structure with an opening, and they are arranged symmetrically around the circumferential direction, thereby forming a larger U-shape. The structure is not restricted here.

In addition, the support partition 12 in the lens antenna housing 1 is integrally formed using a rotational molding process, which not only makes the mold manufacturing simple, but also lowers the mold cost and single product price.

Of course, in other embodiments, the support partition 12 can also be integrally formed from plastic or fiberglass using a pultrusion process, which is not limited here.

In addition, the upper end cover 13 of the lens antenna housing 1 is integrally formed by a blister process. Therefore, the upper end cover 13 made by the blister process has the advantages of low price and high production efficiency.

Of course, in other embodiments, the upper end cover 13 can also be made by rotational molding or injection molding, which is not limited here.

Embodiment 2

Referring to Figures 7-9, this application also provides an antenna device, including the lens antenna housing 1 of Embodiment 1, the array antenna 3 and the lens 2. The support partition 12 is used to accommodate the array antenna 3. The lower end of the housing 11 A number of through holes 1121 are opened in the cover 112 for installing the array antenna 3 . The lens 2 is arranged inside the outer cover 11 and is located between the main body portion 1111 of the outer cover main body 111 and the support partition 12 . The lower end cover 112 is used to support the lens 2 .

In this embodiment, the lens 2 is an electromagnetic lens; the array antenna 3 is a high-frequency 4-beam electrically adjustable antenna, and each beam is independently electrically adjustable.

Embodiment 3

Referring to Figures 10-12, the difference between the antenna device provided in this embodiment and that in Embodiment 2 lies in that the structures of the array antenna 3 and the supporting partition 12 are different. Specifically, the array antenna 3 is a low-frequency 3-beam and high-frequency 6-beam lens antenna; the support partition 12 includes a first support member 121 and a second support member 122 with the same structure and symmetrically arranged left and right, and a first support member located on the first support member. The third support member 123 between 121 and the second support member 122. The first support member 121, the second support member 122 and the third support member 123 are all closed annular columnar structures, and the three of them surround each other in the circumferential direction in turn. arranged to form a larger annular columnar structure.

To sum up, the new lens antenna housing 1 and antenna device of the present application have the following beneficial effects:

(1) Lens antenna cover 1 of the present application. The cover 11 is integrally formed by the cover main body 111 and the lower end cover 112. The integrated structure is not only waterproof but also ensures its strength. It can support the lens material installed in the outer cover 11 to avoid the risk of the lens material falling off after long-term outdoor use, and has a stable structure and high reliability.

(2) For the lens antenna cover 1 of this application, the rotational molding process can not only produce a large-sized shell to meet the size requirements of the cover 11, but also has a low manufacturing cost. Its mold cost and single product price are higher than those of other processes. 15%-20%. In addition, the outer cover 11 made by the rotational molding process has the characteristics of high load-bearing strength, strong pressure resistance, and wear resistance.

(3) The lens antenna cover 1 of the present application has a low dielectric constant (around 2.3), so the dielectric loss is also small, so it is suitable for manufacturing antenna covers. In addition, by adding an anti-UV agent to the polyethylene, the aging problem of the outer cover 11 caused by ultraviolet radiation when used outdoors for a long time can be avoided, thereby extending the service life of the outer cover 11 .

(4) The support partition 12 of the lens antenna housing 1 of the present application is integrally formed using a rotational molding process or a pultrusion process. Not only is the mold manufacturing simple, but the mold cost and single product price are also low.

(5) The lens antenna cover 1 of this application adopts the upper end cover 13 made by the blister process, which has the advantages of low price and high production efficiency.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. , rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation on the present application.

In addition, in the description of this application, "plurality" and "several" mean two or more, unless otherwise clearly and specifically limited.

The technical means disclosed in the solution of this application are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for Those of ordinary skill in the art can make several improvements and modifications without departing from the principles of the present application, and these improvements and modifications are also regarded as the protection scope of the present application.

Claims

A new type of lens antenna cover is characterized by including:

An outer cover, which includes an outer cover main body with openings on both sides and a lower end cover disposed at one side opening of the outer cover main body, and the outer cover main body and the lower end cover are integrally formed;

A support partition arranged inside the outer cover;

An upper end cap is provided at the opening on the other side of the housing body to seal the housing.
The lens antenna cover according to claim 1, wherein a plurality of first reinforcing ribs are provided on the cover.
The lens antenna cover according to claim 1 or 2, characterized in that the cover is integrally formed of plastic using a rotational molding process.
The lens antenna cover according to claim 3, characterized in that the cover is made of polyethylene material.
The lens antenna housing according to claim 4, wherein the polyethylene is high density polyethylene, low density polyethylene or linear low density polyethylene.
The lens antenna cover according to claim 4, wherein the polyethylene is modified polyethylene, including chlorinated polyethylene, chlorosulfonated polyethylene, cross-linked polyethylene and blended modified polyethylene.
The lens antenna cover according to claim 4, wherein an anti-ultraviolet UV agent is added to the polyethylene.
The lens antenna housing according to claim 3, wherein the wall thickness of the housing is 2 to 20 mm.
The lens antenna cover according to claim 1 or 2, wherein the cover is integrally formed of plastic using a blow molding process.
The lens antenna housing according to claim 1, wherein the supporting partition is a closed annular columnar structure or a U-shaped structure with an opening.
The lens antenna housing according to claim 1, wherein a plurality of second reinforcing ribs are provided on the supporting partition.
The lens antenna housing according to claim 1, 10 or 11, characterized in that the support partition is integrally formed by a rotational molding process.
The lens antenna housing according to claim 1, 10 or 11, characterized in that the support partition is made of plastic or fiberglass and is integrally formed by a pultrusion process.
The lens antenna cover according to claim 1, wherein the upper end cover is integrally formed by blister molding, rotational molding or injection molding.
An antenna device, characterized by comprising the lens antenna housing, array antenna and lens according to any one of claims 1-14, wherein:

The support partition is used to accommodate the array antenna;

The lens is arranged inside the outer cover, and the lower end cover is used to support the lens.