Communication equipment and antenna housing for communication equipment

Abstract

The antenna housing comprises a housing body, the housing body comprises a plane part and an annular side wall surrounding the edge of the plane part, the annular side wall and the plane part define a cavity with an opening in one side, and the side, away from the plane part, of the annular side wall is provided with a mounting plane; a containing cavity is formed in the fastener installation cabin, a first metal fastener is arranged in the containing cavity, and a gap is formed between the first metal fastener and the inner wall of the containing cavity in the axial direction and / or the radial direction of the containing cavity; wherein the fastener installation cabin is formed in the annular side wall, and the annular side wall is provided with an installation channel which is communicated with the interior of the containing cavity from the installation plane.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a communication device and a radome used for the communication device. Background Art

[0002] MMU (Massive MIMO Unit) is a large-scale antenna technology integrated unit, which is the core equipment for improving network coverage, user experience, and system capacity in the fifth generation of mobile communications (5G). The radome of MMU is used to protect the antenna system. It has good electromagnetic wave penetration characteristics in electrical performance and can withstand the impact of harsh external environments in mechanical performance. Outdoor antennas are usually placed in the open air and are directly attacked by storms, ice and snow, dust, and solar radiation in nature. The radome can effectively protect the antenna and reduce the impact of these factors on the antenna's accuracy, life, and working reliability.

[0003] There are three types of MMU radomes currently used on the market: (1) The front screwing solution adopts the form of radome body + annular surround. It adopts a two-piece assembly and requires two sets of molds. Among them, the radome body is surrounded by annular surrounds, but there is a gap between the radome body and the annular surround, which cannot be completely closed; (2) The back screwing solution requires that the antenna cover body be sealed with a decorative strip around the edges. There are gaps around the edges and sides of the antenna cover body. In addition, there are many parts to be assembled manually, which results in high labor costs. At least three sets of molds are required, resulting in high manufacturing costs. (3) The solution of hot-melt nuts with screws on the back. Due to the different materials of the nuts and the antenna cover, there is a risk of cracking of the plastic around the nuts under high and low temperatures. Summary of the invention

[0004] An embodiment of the present application provides a communication device and an antenna cover for the communication device. The cover body adopts an integrated structure, and the fastener installation compartment and the cover body are formed as one body, which can not only ensure the aesthetics but also avoid the risk of cracking of the material around the fastener.

[0005] In one embodiment of the present application, a radome is provided, comprising: A cover body, the cover body comprising a plane portion and an annular side wall surrounding an edge of the plane portion, the annular side wall and the plane portion enclose a cavity having an opening on one side, wherein a side of the annular side wall facing away from the plane portion has a mounting plane flush with the opening; A fastener installation chamber, wherein a receiving cavity is formed inside the fastener installation chamber, a first metal fastener is installed in the receiving cavity, and a gap is formed between the first metal fastener and the inner wall of the receiving cavity in the axial direction and / or radial direction of the receiving cavity; Wherein, the fastener installation chamber is formed in the annular side wall, and the annular side wall has an installation channel that passes through the installation plane and the interior of the accommodating cavity.

[0006] In one embodiment, the axial direction of the accommodating cavity is consistent with the extension direction of the annular side wall; The second metal fastener is threadably engaged with the first metal fastener via a rotational action about the axial direction.

[0007] In one embodiment, the fastener installation compartment includes a first installation compartment and a second installation compartment that are docked with each other.

[0008] In one embodiment, the inner wall of the first installation chamber and / or the inner wall of the second installation chamber has a first limiting portion, and the first limiting portion limits the relative position of the first metal fastener with respect to the accommodating cavity in the rotation direction around the axial direction.

[0009] In one embodiment, the second installation chamber is adjacent to the installation plane, and the second installation chamber has a through hole connected to the installation channel.

[0010] In one embodiment, the first installation chamber includes a first base and a first annular side wall formed on the first base, and the second installation chamber includes a second base and a second annular side wall formed on the second base; The outer wall of the first annular side wall and the inner wall of the second annular side wall respectively form threads that match each other.

[0011] In one embodiment, the first metal fastener includes a first shaft portion having a first diameter and a second shaft portion having a second diameter, wherein the first diameter is smaller than the second diameter; The first annular side wall encloses and forms a first accommodating cavity for receiving the first shaft portion, and the top edge of the first annular side wall forms a second limiting portion for limiting the first metal fastener in the axial direction of the first metal fastener.

[0012] In one embodiment, the second base has a through hole connected to the mounting channel.

[0013] In one embodiment, the cover and the fastener mounting bay are made of the same dielectric material.

[0014] In one embodiment, it includes: Another embodiment of the present application further provides a communication device, including: a housing in which an antenna is mounted; and As for the radome as described above, the shell is threadedly matched with the first metal fastener of the radome via the second metal fastener, so as to be connected to the radome as a whole.

[0015] This embodiment provides a communication device and an antenna cover for the communication device. The cover body adopts an integrated structure, and the fastener installation compartment and the cover body are formed as one body, which can ensure airtightness and avoid the risk of cracking of materials around the fasteners.

[0016] In this embodiment, the metal fastener is not directly mounted on the cover body 10, but is integrally formed in the annular side wall 12 of the cover body 10 via the fastener installation chamber 20. By providing the fastener installation chamber 20, the fastener installation chamber 20 is made of the same material as the cover body 10, and the integrated formation method can form a structure with the same expansion rate as the cover body 10, and there will be no problem of material cracking due to different expansion rates. The first metal fastener 21 located in the fastener installation chamber 20 has a gap with the inner wall of the fastener installation chamber 20 to provide deformation space for the first metal fastener 21 and the fastener installation chamber 20. Furthermore, since the fastener installation chamber 20 is integrally formed in the annular side wall 12 of the cover body 10, it is not necessary to provide an installation operation space for the first metal fastener 21. Therefore, the cover body 10 can be formed into an integrated structure, and there is no gap throughout the entire cover body 10, ensuring the closedness and aesthetics. Furthermore, all the fastener installation compartments 20 have the same structure, and the structure of the cover body 10 only requires one mold to be implemented. The fastener installation compartments 20 can be directly formed in the cover body 10 by, for example, injection molding, saving a large number of fastener installation steps and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings are only used to illustrate and explain the present application, and do not limit the scope of the present application: Figure 1a and Figure 1b This is a schematic diagram of the structure of the radome of the present application; Figure 2 It is a schematic structural diagram of the fastener installation compartment of the antenna cover in the embodiment of the present application.

[0018] Figure 3 It is a partial cross-sectional view of the antenna cover in the embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to have a clearer understanding of the technical features, purposes and effects of the invention, specific embodiments of the invention are now described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0020] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0021] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0022] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0023] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0024] In this article, "equal", "same" and the like are not strictly limited in the mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use. Unless otherwise specified, the numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0026] like Figures 1a to 3 As shown, an embodiment of the present application provides an MMU radome, comprising: The cover body 10 includes a plane portion 11 and an annular side wall 12 surrounding an edge of the plane portion 11, wherein the annular side wall 12 and the plane portion 11 are integrally formed to enclose a cavity having an opening on one side, wherein a side of the annular side wall 12 facing away from the plane portion 11 has a mounting plane 13 flush with the opening; A fastener installation chamber 20, wherein a receiving cavity is formed inside the fastener installation chamber 20, and a first metal fastener 21 is installed in the receiving cavity and has a gap with an inner wall of the receiving cavity in an axial direction and / or a radial direction of the receiving cavity; The fastener installation chamber 20 is formed in the annular side wall 12 , and the accommodating cavity is communicated with the installation plane 13 , and the second metal fastener is threadedly matched with the first metal fastener 21 via the installation plane 13 .

[0027] In the prior art, the radome needs to be connected to the body or shell of the MMU. In order to provide a mounting position for the fastener, the radome is usually composed of a plane portion and an annular portion surrounding the plane portion. The plane portion and the annular portion are split structures, so there must be a joint gap between the split plane portion and the annular portion, which affects the aesthetics. In addition, the fastener and the radome are usually formed of materials with different expansion rates, so there is a risk of expansion cracking under the hot and cold changes in the use environment.

[0028] In this embodiment, the metal fastener is not directly mounted on the cover body 10, but is integrally formed in the annular side wall 12 of the cover body 10 via the fastener installation chamber 20. By providing the fastener installation chamber 20, the fastener installation chamber 20 is made of the same material as the cover body 10, and the integrated formation method can form a structure with the same expansion rate as the cover body 10, and there will be no problem of material cracking due to different expansion rates. The first metal fastener 21 located in the fastener installation chamber 20 has a gap with the inner wall of the fastener installation chamber 20 to provide deformation space for the first metal fastener 21 and the fastener installation chamber 20. Furthermore, since the fastener installation chamber 20 is integrally formed in the annular side wall 12 of the cover body 10, it is not necessary to provide an installation operation space for the first metal fastener 21. Therefore, the cover body 10 can be formed into an integrated structure, and there is no gap throughout the entire cover body 10, ensuring the closedness and aesthetics. Furthermore, all the fastener installation compartments 20 have the same structure, and the structure of the cover body 10 only requires one mold to be implemented. The fastener installation compartments 20 can be directly formed in the cover body 10 by, for example, injection molding, saving a large number of fastener installation steps and reducing production costs.

[0029] Among them, the cover body 10 and the fastener installation compartment 20 are both made of dielectric materials that meet the radio frequency performance, such as modified ASA (acrylonitrile-styrene-acrylic rubber polymer), ABS (acrylonitrile-butadiene-styrene) or PC (polycarbonate) and other weather-resistant plastic materials. Injection molding technology (insert molding) can be used to combine the fastener installation compartment 20 equipped with the first metal fastener 21 with the cover body 10 through injection molding, and the first metal fastener 21 made of metal material and the fastener installation compartment 20 made of plastic material are separated.

[0030] Optionally, the cover body 10 and the fastener mounting compartment 20 may also be made of different materials having similar expansion coefficients.

[0031] The side of the annular side wall 12 facing away from the plane portion 11 has a mounting plane 13 flush with the opening, and the mounting plane 13 is formed as a plane that docks with the housing of the communication device. The antenna cover is connected to the housing of the communication device by connecting the first metal fastener 21 and the second metal fastener. Generally, the first metal fastener 21 and the second metal fastener are in the form of threaded fit, and the connection is achieved by rotating around the central axis of the first metal fastener 21.

[0032] There is a gap between the first metal fastener 21 and the inner wall of the fastener installation chamber 20, that is, the first metal fastener 21 and the fastener installation chamber 20 are separated from each other, and are not tightly fitted with the cover body of the antenna cover as in the prior art. The separation arrangement allows a space to accommodate expansion and deformation between the first metal fastener 21 and the fastener installation chamber 20, so as to prevent the two parts made of different materials from expanding and deforming and causing cracking when the ambient temperature changes.

[0033] The annular side wall 12 has an installation passage that penetrates from the installation plane 13 and the interior of the accommodating cavity of the fastener installation compartment 20 , and the second metal fastener is threadedly matched with the first metal fastener 21 via the installation passage.

[0034] Specifically, the axial direction of the accommodating cavity is consistent with the extension direction of the annular side wall 12; the second metal fastener and the first metal fastener 21 are threadedly engaged via a rotation action around the axial direction.

[0035] The annular side wall 12 extends in a direction perpendicular to the plane portion 11, and the axial directions of the first metal fastener 21 and the accommodating cavity are perpendicular to the plane portion 11. The mounting channel also extends in the axial direction, and the second metal fastener extends into the accommodating cavity of the fastener mounting compartment 20 through the mounting channel to be threadedly connected with the first metal fastener 21.

[0036] In a specific example, the fastener installation compartment 20 includes a first installation compartment 20a and a second installation compartment 20b that are docked with each other.

[0037] The inner wall of the first installation chamber 20a and / or the inner wall of the second installation chamber 20b has a first limiting portion 22, and the first limiting portion 22 limits the relative position of the first metal fastener 21 with respect to the accommodating cavity in the rotation direction around the axial direction.

[0038] In a specific example, for example, the first limiting portion 22 is disposed on the inner wall of the first installation chamber 20a. The cross section of the first installation chamber 20a is generally circular, and the first limiting portion 22 is configured as a plane portion that causes the inner diameter of the first installation chamber 20a to shrink, so as to interfere with the first metal fastener 21 in the first installation chamber 20a in the rotation direction around the axial direction, and prevent the first metal fastener 21 from rotating relative to the first installation chamber 20a. Then, when the second metal fastener is threadedly connected to the first metal fastener 21 by rotation, the position of the first metal fastener 21 is relatively fixed.

[0039] Correspondingly, the second installation chamber 20 b is adjacent to the installation plane 13 , and the second installation chamber 20 b has a through hole connected to the installation channel.

[0040] In a specific example, the first installation chamber 20a includes a first base 201 and a first annular side wall 202 formed on the first base 201, and the second installation chamber 20b includes a second base 211 and a second annular side wall formed on the second base 211; The outer wall of the first annular side wall 202 and the inner wall of the second annular side wall respectively form threads that match each other.

[0041] Specifically, the first metal fastener 21 includes a first shaft portion having a first diameter and a second shaft portion having a second diameter, wherein the first diameter is smaller than the second diameter; The first annular side wall 202 encloses and forms a first accommodating cavity for receiving the first shaft portion, and the top edge of the first annular side wall 202 forms a second limiting portion for limiting the first metal fastener 21 in the axial direction of the first metal fastener 21 .

[0042] The second base 211 has a through hole connected to the installation channel.

[0043] It is understandable that the first installation chamber 20a and the second installation chamber 20b can be connected by threads, or by interference riveting, ultrasonic welding, or the like.

[0044] In a specific example, this includes: The waterproof strip 30 is installed on the installation plane 13 and surrounds the annular side wall 12 , wherein the waterproof strip 30 is located on a side of the fastener installation compartment 20 facing the accommodating cavity.

[0045] Another embodiment of the present application further provides a communication device, including: a housing in which an antenna is mounted; and like Figures 1a to 3 In the radome shown, the shell is threadedly matched with the first metal fastener 21 of the radome via the second metal fastener to be connected to the radome as a whole.

[0046] In this embodiment, the metal fastener is not directly mounted on the cover body 10, but is integrally formed in the annular side wall 12 of the cover body 10 via the fastener installation chamber 20. By providing the fastener installation chamber 20, the fastener installation chamber 20 is made of the same material as the cover body 10, and the integrated formation method can form a structure with the same expansion rate as the cover body 10, and there will be no problem of material cracking due to different expansion rates. The first metal fastener 21 located in the fastener installation chamber 20 has a gap with the inner wall of the fastener installation chamber 20 to provide deformation space for the first metal fastener 21 and the fastener installation chamber 20. Furthermore, since the fastener installation chamber 20 is integrally formed in the annular side wall 12 of the cover body 10, it is not necessary to provide an installation operation space for the first metal fastener 21. Therefore, the cover body 10 can be formed into an integrated structure, and there is no gap throughout the entire cover body 10, ensuring the closedness and aesthetics. Furthermore, all the fastener installation compartments 20 have the same structure, and the structure of the cover body 10 only requires one mold to be implemented. The fastener installation compartments 20 can be directly formed in the cover body 10 by, for example, injection molding, saving a large number of fastener installation steps and reducing production costs.

[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A radome, characterized in that: include: A cover body (10), the cover body (10) comprising a plane portion (11) and an annular side wall (12) surrounding an edge of the plane portion (11), the annular side wall (12) and the plane portion (11) being integrally formed to enclose a cavity having an opening on one side, wherein a side of the annular side wall (12) facing away from the plane portion (11) has a mounting plane (13) flush with the opening; A fastener installation chamber (20), wherein a receiving cavity is formed inside the fastener installation chamber (20), and a first metal fastener (21) is installed in the receiving cavity and has a gap with an inner wall of the receiving cavity in an axial direction and / or a radial direction of the receiving cavity; The fastener installation chamber (20) is formed in the annular side wall (12), and the annular side wall (12) has an installation channel that passes through the installation plane (13) and the interior of the accommodating cavity.

2. The radome according to claim 1, characterized in that: The cover body (10) and the fastener installation compartment (20) are made of the same dielectric material.

3. The radome according to claim 1, characterized in that: The axial direction of the accommodating cavity is consistent with the extension direction of the annular side wall (12); The second metal fastener is threadably engaged with the first metal fastener (21) via a rotational action around the axial direction.

4. The radome according to claim 1, characterized in that: The fastener installation chamber (20) comprises a first installation chamber (20a) and a second installation chamber (20b) that are butted against each other.

5. The radome according to claim 4, characterized in that: The inner wall of the first installation chamber (20a) and / or the inner wall of the second installation chamber (20b) has a first limiting portion (22), and the first limiting portion (22) limits the relative position of the first metal fastener (21) relative to the accommodating cavity in a rotation direction around the axial direction.

6. The radome according to claim 4, characterized in that: The second installation chamber (20b) is adjacent to the installation plane (13), and the second installation chamber (20b) has a through hole connected to the installation channel.

7. The radome according to claim 4, characterized in that: The first installation chamber (20a) comprises a first base (201) and a first annular side wall (202) formed on the first base (201), and the second installation chamber (20b) comprises a second base (211) and a second annular side wall formed on the second base (211); The outer wall of the first annular side wall (202) and the inner wall of the second annular side wall respectively form mutually matching threads.

8. The radome according to claim 7, characterized in that: The first metal fastener (21) comprises a first shaft portion having a first diameter and a second shaft portion having a second diameter, wherein the first diameter is smaller than the second diameter; The first annular side wall (202) encloses a first accommodating cavity for receiving the first shaft portion, and the top edge of the first annular side wall (202) forms a second limiting portion for limiting the first metal fastener (21) in the axial direction of the first metal fastener (21).

9. The radome according to claim 8, characterized in that The second base (211) has a through hole connected to the installation channel.

10. A communication device, characterized in that: include: a housing in which an antenna is installed; and According to the radome as claimed in any one of claims 1 to 9, the shell is threadedly matched with the first metal fastener (21) of the radome via the second metal fastener to be connected to the radome as a whole.

Images