Micro base station antenna sealing structure
By adopting an integrated injection molded sealing ring structure in the micro base station antenna, the problems of high operation difficulty and cost in the traditional sealing method are solved, production efficiency and product reliability are improved, and sealing performance is ensured.
Patent Information
- Application Number
- CN202420717146.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-08
AI Technical Summary
The sealing structure of micro base station antennas has problems such as high operational difficulty, high cost and insufficient reliability. The traditional sealant method consumes work hours and is difficult to repair, and the sealing ring solution is poor in versatility and high cost.
The integrated injection molding of the connecting seal ring is adopted on the first annular abutment structure on the top side of the bottom plate and the second abutment structure on the bottom side of the radome are used to form a sealing structure, reducing the number of materials, reducing assembly time, and improving reliability.
It realizes the reduction of assembly time, cost reduction, product reliability, guarantee sealing performance, simplify assembly process and reduce rework rate.
Smart Images
Figure CN222365719U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of communications, and in particular relates to a sealing structure of a micro base station antenna. Background Art
[0002] With the rapid development of mobile communications, the fully deployed 4G and the 5G being vigorously promoted are bound to face many problems such as low spectrum utilization and insufficient channel capacity. Traditional macro base stations are gradually unable to meet the above needs, and the use of small-volume micro base stations as their supplementary equipment can effectively improve the current situation. As an indispensable part of mobile communications, micro base station antennas play a decisive role in the operation of micro base station systems.
[0003] The appearance of the microcomputer station antenna is mainly composed of the base plate and the radome. Because it is used outdoors for a long time, the micro base station antenna generally requires a sealing design for the connection interface between the base plate and the radome to ensure reliability. There are two main types of traditional sealing structures, one is a sealing ring and the other is a sealant. Both types of sealing structures can meet the sealing connection between the base plate and the radome of the microcomputer station antenna.
[0004] However, both solutions have their own drawbacks: the sealant method takes time to apply glue, the residual glue on the surface requires a special cleaning station, and the product is difficult to return for repair. If the sealing ring solution uses wire, the sealing of the interface is unreliable; if a special sealing ring is used, the versatility is poor, the cost is high, and the assembly of the sealing ring during the production process takes time.
[0005] It can be seen that the sealing method of the base plate and the antenna cover of the microcomputer station antenna in the related art still has the problems of high operating difficulty, high cost and insufficient reliability. Utility Model Content
[0006] The technical purpose of the utility model is to provide a micro base station antenna sealing structure, aiming to solve at least one of the technical problems existing in the micro base station antenna sealing structure of the related technology mentioned in the background technology.
[0007] In order to solve the above technical problems, the utility model is implemented as follows: a micro base station antenna sealing structure is provided, comprising a bottom plate and a radome covering the bottom plate, the top side of the bottom plate is provided with a ring-shaped first abutment structure, the bottom side of the radome is provided with a second abutment structure whose shape and position match those of the first abutment structure, and a sealing ring integrally injection-molded and connected to the bottom side of the second abutment structure;
[0008] When the antenna cover is covered on the base plate, the sealing ring abuts against the first abutment structure to achieve sealing, and the antenna cover, the base plate, the first abutment structure, the second abutment structure and the sealing ring together form a receiving cavity for installing the antenna assembly.
[0009] Furthermore, the first abutment structure comprises a first abutment ring protruding upward from the top side of the bottom plate, and the bottom side of the sealing ring abuts against the upward surface of the first abutment ring to achieve sealing.
[0010] Furthermore, a groove is provided on the top side of the first abutment ring, and when the antenna cover and the base plate are covered, the sealing ring is embedded in the groove, and the bottom surface and side surface of the sealing ring are respectively interference fit with the bottom wall and side wall of the groove.
[0011] Further, the sealing ring is at least partially embedded in the second abutting structure, and the second abutting structure is at least partially embedded in the sealing ring.
[0012] Furthermore, the second abutment structure includes a second abutment ring protruding downward from the bottom side of the antenna cover, and the sealing ring at least covers the bottom surface of the second abutment ring.
[0013] Furthermore, both the inner side surface and the outer side surface of the second abutting ring are provided with embedding grooves, the sealing ring covers at least a portion of the inner side surface and at least a portion of the outer side surface of the sealing ring, and a portion of the sealing ring is embedded in the embedding grooves.
[0014] Furthermore, the second abutting structure is made of hard plastic material, the sealing ring is made of soft elastic plastic material, and the sealing ring is integrally connected to the second abutting structure by secondary injection molding.
[0015] Furthermore, the sealing ring is made of silicone material or rubber material.
[0016] Furthermore, a fixing column and / or a fixing hole for fixing the antenna assembly is provided in an area on the top side of the bottom plate and located inside the first abutting structure.
[0017] Furthermore, the contour of the first abutment structure at least partially shrinks inwardly, so that a clearance area is formed on the outer side of the first abutment structure, an assembly hole is provided in the clearance area of the bottom plate, and the antenna cover is provided with a mounting structure matching the assembly hole.
[0018] Compared with the prior art, the sealing structure of the micro-base station antenna of the utility model has the following beneficial effects:
[0019] In this solution, the sealing ring is integrally injection molded on the bottom side of the second abutting structure, and the sealing ring and the antenna cover are formed into an integrated structure as one material. This can reduce the number of materials and the material cost. During the assembly process, there is no need to apply glue or install a sealing ring separately, which can reduce the installation time, improve production efficiency, improve product reliability, reduce the return rate, and ensure sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of a three-dimensional exploded structure of a micro base station antenna sealing structure in an embodiment of the utility model;
[0021] Figure 2 2 is a schematic structural diagram of a radome of a micro base station antenna sealing structure in an embodiment of the utility model;
[0022] Figure 3 It is a cross-sectional schematic diagram of the cooperation between the second abutment structure and the sealing structure in the antenna cover of the micro base station antenna sealing structure in the embodiment of the utility model.
[0023] In the accompanying drawings, the reference numerals represent: 1, bottom plate; 11, first abutment structure; 2, antenna cover; 21, second abutment structure; 22, sealing ring; 211, embedding groove. DETAILED DESCRIPTION
[0024] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.
[0025] 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", "circumferential", "radial" and the like indicate positions or positional relationships based on the positions 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 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 on the present invention. In the present solution, the directions of "top" and "bottom" are only based on the directions shown in the attached drawings. Figure 1 For reference only and not intended to limit the specific orientation of the corresponding structure.
[0026] 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 one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0027] Combination Figure 1-3 , provides a micro base station antenna sealing structure, including a base plate 1 and an antenna cover 2 covering the base plate 1, the top side of the base plate 1 is provided with an annular first abutment structure 11, the bottom side of the antenna cover 2 is provided with a second abutment structure 21 whose shape and position match the first abutment structure 11, and a sealing ring 22 which is integrally injection-molded and connected to the bottom side of the second abutment structure 21; wherein, when the antenna cover 2 covers the base plate 1, the sealing ring 22 abuts against the first abutment structure 11 to achieve sealing, and the antenna cover 2, the base plate 1, the first abutment structure 11, the second abutment structure 21 and the sealing ring 22 jointly enclose a receiving cavity for installing an antenna component.
[0028] In the present solution, the sealing ring 22 is integrally injection molded on the bottom side of the second abutting structure 21, so that the sealing ring 22 and the antenna cover 2 form an integrated structure as one material, which can reduce the number of materials and the material cost. During the assembly process, there is no need to apply glue or install the sealing ring 22 separately, which can reduce the installation time, improve production efficiency, improve product reliability, reduce the return rate, and ensure the sealing performance.
[0029] Further, the first abutment structure 11 includes a first abutment ring protruding upward from the top side of the bottom plate 1, and the bottom side of the sealing ring 22 abuts against the upward surface of the first abutment ring to achieve sealing. Specifically, a groove is provided on the top side of the first abutment ring, and when the antenna cover 2 and the bottom plate 1 are covered, the sealing ring 22 is embedded in the groove, and the bottom surface and side surface of the sealing ring 22 are respectively interference fit with the bottom wall and side wall of the groove. Since the sealing ring 22 is directly connected to the second abutment structure 21 by injection molding as a whole, when assembling the micro base station antenna, it is only necessary to correspond the position of the sealing ring 22 of the antenna cover 2 to the position of the groove, and then the antenna cover 2 is buckled onto the bottom plate 1, so that the sealing ring 22 can be embedded in the groove, and the bottom surface and side surface of the sealing ring 22 are respectively interference fit with the bottom wall and side wall of the groove, ensuring the reliability of the seal, convenient positioning during installation, and simple and fast assembly process with high efficiency. In some embodiments, the first abutment structure 11 can be the top side surface of the bottom plate 1, and the groove is directly opened on the top side of the bottom plate 1.
[0030] Furthermore, the sealing ring 22 is at least partially embedded in the second abutting structure 21, and at least partially embedded in the sealing ring 22. Specifically, in this embodiment, the second abutting structure 21 includes a second abutting ring protruding downward from the bottom side of the antenna cover 2, and the sealing ring 22 at least covers the bottom surface of the second abutting ring; the inner side surface and the outer side surface of the second abutting ring are both provided with an embedding groove 211, the sealing ring 22 covers at least part of the inner side surface and at least part of the outer side surface of the sealing ring 22, and part of the sealing ring 22 is embedded in the embedding groove 211.
[0031] By setting the embedding groove 211 on the inner side and the outer side of the second abutting ring in the extension direction thereof, the cross section of the second abutting ring is similar to having a head and a neck, and the position of the embedding groove 211 is equivalent to the neck. In this way, the position of the head and the position of the neck are equivalent to the reserved glue drawing position, and the sealing ring 22 is covered on the head by glue drawing, and part of the sealing ring 22 is filled into the embedding groove 211. In this way, the sealing ring 22 is embedded in the embedding groove 211, which is equivalent to the structure of the sealing ring 22 embedded in the second abutting ring, and the head of the second abutting ring is covered by the sealing ring 22, which is equivalent to the head of the second abutting ring embedded in the sealing ring 22. By embedding each other, the connection between the sealing ring 22 and the second abutting ring can be made tighter and more reliable, not easy to fall off, higher reliability, and longer life. It should be understood that the mutually embedded structures can be adaptively adjusted according to actual conditions, and are not limited here. For example, the surface of the second abutting ring can be provided with both protrusions or depressions, the protrusions are embedded in the sealing ring 22, and the sealing ring 22 is filled in the groove.
[0032] Furthermore, the second abutting structure 21 is made of hard plastic material, the sealing ring 22 is made of soft elastic plastic material, and the sealing ring 22 is integrally connected to the second abutting structure 21 by secondary injection molding, so as to ensure the strength of the structure and the sealing reliability when the radome 2 and the base plate 1 are connected.
[0033] Furthermore, the sealing ring 22 may be made of silicone material or rubber material. The second abutting structure 21 and the bottom plate 1 are actually an integrated structure, and may be made of engineering plastics, PC (polycarbonate) material, PE (polyethylene) material, and the like.
[0034] Furthermore, a fixing column and / or a fixing hole for fixing the antenna assembly is provided in the area inside the first abutting structure 11 on the top side of the bottom plate 1. The antenna assembly is installed in the receiving space through the fixing column or the fixing hole, thereby realizing the basic antenna function. Due to the sealing structure setting of this solution, the sealing performance of the receiving space can be guaranteed, and waterproof and dustproof properties can be achieved, thereby ensuring the reliable performance of the micro base station antenna.
[0035] Furthermore, the contour of the first abutting structure 11 is at least partially contracted inwardly, so that a clearance area is formed on the outer side of the first abutting structure 11, and an assembly hole is provided in the clearance area of the bottom plate 1, and the antenna cover 2 is provided with a mounting structure matching the assembly hole. The shapes of the second abutting structure 21 and the sealing ring 22 are adapted to the first abutting structure 11, so the trend of the annular structure used for sealing can be adaptively adjusted to adapt to the mounting structure of the antenna cover 2 and the bottom plate 1.
[0036] The above description is only a preferred embodiment of the present invention and is 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. A micro base station antenna sealing structure, characterized in that: It comprises a bottom plate and a radome covering the bottom plate, wherein the top side of the bottom plate is provided with a first annular abutment structure, the bottom side of the radome is provided with a second abutment structure whose shape and position match those of the first abutment structure, and a sealing ring integrally injection-molded and connected to the bottom side of the second abutment structure; When the antenna cover is covered on the base plate, the sealing ring abuts against the first abutment structure to achieve sealing, and the antenna cover, the base plate, the first abutment structure, the second abutment structure and the sealing ring together form a receiving cavity for installing the antenna assembly.
2. The micro base station antenna sealing structure according to claim 1, characterized in that: The first abutment structure comprises a first abutment ring protruding upward from the top side of the bottom plate, and the bottom side of the sealing ring abuts against the upward surface of the first abutment ring to achieve sealing.
3. The micro base station antenna sealing structure according to claim 2, characterized in that: A groove is provided on the top side of the first abutment ring. When the antenna cover and the base plate are covered, the sealing ring is embedded in the groove, and the bottom surface and side surface of the sealing ring are respectively interference fit with the bottom wall and side wall of the groove.
4. The micro base station antenna sealing structure according to claim 1, characterized in that: The sealing ring is at least partially embedded in the second abutting structure, and the second abutting structure is at least partially embedded in the sealing ring.
5. The micro base station antenna sealing structure according to claim 2, characterized in that: The second abutment structure includes a second abutment ring protruding downward from the bottom side of the antenna cover, and the sealing ring at least covers the bottom surface of the second abutment ring.
6. The micro base station antenna sealing structure according to claim 5, characterized in that: The inner side surface and the outer side surface of the second abutting ring are both provided with embedding grooves, the sealing ring covers at least a part of the inner side surface and at least a part of the outer side surface of the sealing ring, and a part of the sealing ring is embedded in the embedding grooves.
7. The micro base station antenna sealing structure according to claim 4, characterized in that: The second abutting structure is made of hard plastic material, the sealing ring is made of soft elastic plastic material, and the sealing ring is integrally connected to the second abutting structure by secondary injection molding.
8. The micro base station antenna sealing structure according to claim 7, characterized in that: The sealing ring is made of silicone material or rubber material.
9. The micro base station antenna sealing structure according to claim 1, characterized in that: A region on the top side of the bottom plate located inside the first abutting structure is provided with a fixing column and / or a fixing hole for fixing the antenna assembly.
10. The micro base station antenna sealing structure according to claim 1, characterized in that: The contour of the first abutting structure is at least partially contracted inwardly, so that a clearance area is formed on the outer side of the first abutting structure. An assembly hole is provided in the clearance area of the bottom plate, and the antenna cover is provided with a mounting structure matching the assembly hole.