Antenna assembly

Abstract

The invention provides an antenna assembly which can be installed on a fixing piece and is provided with a plurality of installation holes. Comprising a cover body and a base connected to the lower end of the cover body, a containing space is formed between the base and the cover body, the upper surface of the base can be provided with an antenna element which operates at at least one frequency and is contained in the containing space, the lower surface of the base is provided with locking mechanisms extending downwards, and the locking mechanisms correspond to the mounting holes and are equal to the mounting holes in number. The locking mechanisms can be arranged in the corresponding mounting holes in an extending and penetrating manner; the fastening accessory is matched with the locking mechanism so that the base can be fixed on the fixing piece; a sealing ring is arranged on the lower surface of the base and surrounds the two locking mechanisms. The lower end face of the base is provided with an RF grounding elastic sheet protruding downwards. After the antenna assembly provided by the embodiment of the invention is mounted on the fixed part, at least the rotation condition can be avoided, and the antenna assembly further has better waterproofness.

Description

[0001] This application is a divisional application with application number "201810106875.8", application date "February 2, 2018", and invention name "antenna assembly". Technical Field

[0002] The present invention relates to the technical field of vehicle-mounted antennas, and in particular to an antenna assembly. Background Art

[0003] The description in this section merely provides background information related to the present disclosure and does not constitute prior art.

[0004] The vehicle-mounted antenna assembly is mounted on a vehicle surface such as a roof, trunk, hood, etc. to ensure that the antenna assembly has an unobstructed view upward or toward the sky, and can be connected to electronic devices such as radio receivers, touch displays, navigation devices, cellular phones, etc. in the vehicle cab, so that the antenna assembly can operate to send signals to the above-listed electronic devices, and / or receive signals from the above-listed electronic devices.

[0005] In a known embodiment, a vehicle-mounted antenna assembly may include a cover body and a base connected to the cover body, and a downwardly extending locking mechanism is provided on the lower surface of the base. The locking mechanism can be inserted into a mounting hole provided on a vehicle surface (generally speaking, a fixing part) such as a roof, a trunk, or a hood, and the base can be mounted on the fixing part with the aid of a matching fastening member (such as a bolt) to achieve fixed installation of the antenna assembly.

[0006] In the known embodiment, the base is matched with the lower end of the cover, that is, the cross-sectional shape of the base and the lower end surface of the cover are the same and the cross-sectional area is substantially equal. However, the number of locking mechanisms provided on the base is only one, so that the base has a tendency to rotate on the fixing member around the one locking mechanism.

[0007] In addition, the increase in performance or function of the antenna assembly requires that the contact area between the base and the fixing member also be increased, which further aggravates the tendency of the antenna assembly to rotate.

[0008] Furthermore, only one locking mechanism is provided on the base, which is difficult to meet the waterproof reliability requirements of the antenna assembly.

[0009] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present invention and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the present invention. Summary of the invention

[0010] Based on the above-mentioned defects of the prior art, an embodiment of the present invention provides an antenna assembly, which can at least avoid rotation after being installed on a fixing member, and can further have better waterproof performance.

[0011] In order to achieve the above object, the present invention provides the following technical solutions.

[0012] An antenna assembly can be mounted on a fixing member, wherein the fixing member is provided with a plurality of mounting holes; the antenna assembly comprises:

[0013] Cover body;

[0014] A base connected to the lower end of the cover body, an accommodating space is formed between the base and the cover body, an antenna element that operates at at least one frequency and is accommodated in the accommodating space can be provided on the upper surface of the base, and a locking mechanism extending downward is provided on the lower surface of the base, the locking mechanisms correspond to the mounting holes and are equal in number, and the locking mechanisms can extend through the corresponding mounting holes; the number of the locking mechanisms is two; the cross-sectional area of ​​the base is smaller than the area of ​​the lower end surface of the cover body; the base is in the shape of a rectangular plate, and the two locking mechanisms are provided at positions of the base close to the edge along its length direction;

[0015] A fastening accessory, wherein the fastening accessory cooperates with the locking mechanism so that the base can be fixed on the fixing member; the fastening accessory further comprises: a clamping element, wherein the clamping element comprises a bottom and a spring sheet connected to the bottom and extending obliquely upward;

[0016] The locking mechanism is equipped with a plurality of corresponding fastening accessories, wherein the plurality of spring pieces of the clamping element contact the fixing member to cooperate to form a grounding point between the antenna assembly and the fixing member;

[0017] A sealing ring is provided on the lower surface of the base, and the sealing ring surrounds the two locking mechanisms;

[0018] The lower end surface of the base is provided with an RF grounding spring sheet protruding downward.

[0019] Preferably, a threaded hole is provided in the locking mechanism;

[0020] The fastening fitting comprises a fastening bolt, and the fastening bolt is screwed into the threaded hole.

[0021] Preferably, the side wall of the locking mechanism is formed with a plurality of guide slopes;

[0022] The fastening accessory further comprises: a positioning cap, the positioning cap comprising:

[0023] A ring-shaped body, wherein the body is sleeved outside the locking mechanism;

[0024] Anchor claws are arranged on the lower end surface of the body, the anchor claws correspond to the inclined guide surfaces and are equal in number, the anchor claws are inclined radially inward and touch the corresponding inclined guide surfaces;

[0025] A positioning claw is arranged on the lower end surface of the main body, and the positioning claw extends downward. The lower end of the positioning claw extends radially outward to form a hanging portion, and the hanging portion has a hanging surface; when the locking mechanism extends and passes through the corresponding mounting hole, the hanging surface fixes the lower surface of the fixing member.

[0026] Preferably, the base is provided with a through hole for the fastening bolt to pass through, the spring sheets correspond to the deflection guide anchor claws and are equal in number, and the inner wall of the spring sheet is clamped on the outer wall of the corresponding deflection guide anchor claw.

[0027] Preferably, a lower end surface of the locking mechanism extends downward to form an anti-rotation protrusion, and the anti-rotation protrusion is embedded between two adjacent spring sheets when the locking mechanism extends and passes through the corresponding mounting hole.

[0028] Preferably, a positioning protrusion is formed around each of the locking mechanisms, and the fixing member can be reinforced between the upper end of the spring sheet and the positioning protrusion.

[0029] Preferably, the number of the RF grounding spring is one.

[0030] The antenna assembly of an embodiment of the present invention is configured by disposing multiple locking mechanisms corresponding to the mounting holes of the fixing member on the lower surface of the base. After the locking mechanisms extend through the corresponding mounting holes, the locking mechanisms are fixed to the fixing member by fastening accessories, so that the multiple locking mechanisms can inhibit the circumferential rotation of the base through the mounting holes that cooperate with them, thereby preventing the antenna assembly from rotating.

[0031] In the embodiment of the present invention, a sealing ring may be provided on the lower surface of the base, and the sealing ring may surround a plurality of locking mechanisms therein. Furthermore, since there are a plurality of locking mechanisms and the area of ​​the base is reduced compared to the prior art, the sealing ring may be compacted better, so that the mounting hole may be sealed to prevent water, dust, dirt, etc. from entering the vehicle through the mounting hole, and the waterproof and dustproof effect is better.

[0032] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not thereby limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents.

[0033] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0034] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes and are used to help understand the present invention. They do not specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances. In the drawings:

[0036] Figure 1 is a schematic structural diagram of an antenna assembly according to an embodiment of the present invention;

[0037] Figure 2 is an exploded schematic diagram of an antenna assembly according to a first embodiment of the present invention;

[0038] Figure 3 FIG. 4 is an exploded schematic diagram of an antenna assembly according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0040] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. In addition, in the description of the present invention, unless otherwise stated, the meaning of "multiple" is two or more.

[0042] like Figures 1 to 3 As shown, an embodiment of the present invention provides an antenna assembly 100 , which can be mounted on a fixing member 200 .

[0043] The fixing member 200 may be roughly in the shape of a plate, and may be provided with a plurality of mounting holes 201. In a feasible embodiment, the fixing member 200 may be directly the outer wall or shell of any object that needs to be equipped with the antenna assembly 100. Specifically, for example, the fixing member 200 may be the roof, trunk, hood, etc. of a vehicle; or, it may also be the hull shell of a ship, etc., and the present invention is not limited to the above examples.

[0044] In another feasible embodiment, the fixing member 200 may also be an additionally configured plate-shaped component. After the antenna assembly 100 is fixedly installed on the additionally configured fixing member 200, the fixing member 200 is then installed on the outer wall or shell of the object on which the antenna assembly 100 is required to be configured, such as the roof, trunk, hood of the vehicle listed above, or the hull of a ship.

[0045] like Figure 3 As shown, the antenna assembly 100 may include an antenna element 109 capable of operating at at least one frequency, a cover body 101, and a base 102 connected to the lower end of the cover body 101 and having a generally plate-like structure. The antenna element 109 may be disposed on the base 102, and the cover body 101 and the base 102 define a accommodating space in which the antenna element 109 can be accommodated.

[0046] It should be noted that the antenna element is not a necessary component. In some embodiments, the antenna assembly 100 may not include an antenna element, and the protection scope of the present invention is not limited thereto.

[0047] The antenna element 109 can be a patch antenna as provided in the publication number CN104466432A and the title "Multi-band MIMO vehicle-mounted antenna assembly with DSRC function", which is suitable for scenarios such as the Global Positioning System (GPS), the Global System for Mobile communication (GSM) or the Long Term Evolution (LTE).

[0048] Alternatively, the antenna element 109 may be a helical antenna element formed by a printed circuit board (PCB) and at least one conductor (e.g., a conductive trace, a metal wire, etc.) as provided in the publication number CN205104600U and the title Antenna and Vehicle Antenna Assembly for Remote Control Vehicle Purposes, wherein the at least one conductor may be arranged on the printed circuit board in a manner such as winding, coiling, twisting, or coiling.

[0049] The antenna element 109 can be set on a printed circuit board (generally speaking, a substrate or mounting plate) by means of a snap-fit ​​connection, a mechanical fastener connection such as a bolt, other fastening structure, welding such as ultrasound, solvent, laser, etc., hot melting, clamping, snap connection, hook connection, integrated fastening features, etc., and the printed circuit board on which the antenna element 109 is set or supported is set on the base 102, so that the antenna element 109 extends upward approximately in a direction perpendicular to the base 102 to be accommodated in the accommodating space.

[0050] The cover body 101 is generally a hollow shell structure with an open lower end, which can be as follows: Figures 1 to 3 The illustrated shark fin structure is suitable for use on the roof of a vehicle and has aesthetic comfort and is aerodynamic. The antenna assembly 100 having such a structure may be referred to as a shark fin antenna assembly.

[0051] The cover 101 and the base 102 can be detachably connected by bolts. Figure 1 and Figure 2 As shown, the inner wall of the cover body 101 may be provided with a plurality of connecting columns 1011 at intervals along the circumferential direction, and threaded holes are provided in the connecting columns 1011. The edge of the base 102 extends outward to form a plurality of connecting parts 1021 corresponding to the connecting columns 1011, and through holes 1021a are provided on the connecting parts 1021. Bolts are passed through the through holes 1021a, and the bolts can be screwed into the corresponding threaded holes, thereby realizing a detachable connection between the cover body 101 and the base 102.

[0052] like Figure 2As shown, the lower surface of the base 102 can be provided with a locking mechanism 103 extending downward, the locking mechanism 103 corresponds to the mounting holes 201 and the number is equal, the locking mechanism 103 can extend through the corresponding mounting holes 201, and the locking mechanism 103 can be fixed on the fixing member 200 by the fastening accessories 104 cooperating therewith.

[0053] The antenna assembly 100 of the embodiment of the present invention is configured with a plurality of locking mechanisms 103 corresponding to the mounting holes 201 of the fixing member 200 on the lower surface of the base 102. After the locking mechanisms 103 extend through the corresponding mounting holes 201, the locking mechanisms 103 can be fixed to the fixing member 200 by fastening accessories 104, so that the plurality of locking mechanisms 103 can mutually inhibit the circumferential rotation of the base 102 through the mounting holes 201 that cooperate therewith, thereby preventing the antenna assembly 100 from rotating.

[0054] In this embodiment, the number of the locking mechanisms 103 is multiple, and specifically, it can be at least two. In practice, considering that setting two locking mechanisms 103 can meet the above-mentioned anti-rotation requirements, and taking into account the simplification of the structure, the simplicity of the preparation process and the reduction of costs, it is preferred to set the number of the locking mechanisms 103 to two. Figure 2 As shown, further preferably, the base 102 may be roughly in the shape of a rectangular plate, and the two locking mechanisms 103 may be arranged at positions close to the edge of the base 101 along its length direction.

[0055] In addition, as described in the background art, the cross-sectional shape of the base and the lower end surface of the cover in the known embodiment are the same and the cross-sectional area is roughly equal. However, due to the limitation that the fixing of a locking mechanism can cover or radiate a small area, the contact area between the base and the fixing part is small. As such, in the known embodiment, the base designed with the cross-sectional area equal to that of the lower end surface of the cover not only has no benefit on the anti-rotation effect of the antenna assembly, but also increases the complexity of the structure and the cost of consumables.

[0056] In view of this, the embodiment of the present invention designs the cross-sectional area of ​​the base 102 to be smaller than the area of ​​the lower end surface of the cover body 101. Thus, by providing a plurality of locking mechanisms 103, each locking mechanism 103 has its own fixed radiation area, thereby increasing the contact area between the base 102 and the fixing member 200, which not only simplifies the structure and reduces the cost, but also improves the anti-rotation effect of the antenna assembly 100.

[0057] like Figure 2As shown, the locking mechanism 103 may be roughly cylindrical, and a threaded hole 1031 may be provided therein. The fastening accessory 104 may include a fastening bolt 1041, which may be screwed into the threaded hole 1031, and its nut may be fixed on the lower surface of the fixing member 200, thereby achieving the fixing of the locking mechanism 103 and the fixing member 200.

[0058] Furthermore, the side wall of the locking mechanism 103 may be formed with a plurality of guide bevels 1032. Specifically, the locking mechanism 103 may include a body in a body shape (for example, a cylindrical or prism shape), and the side wall of the body is provided with a plurality of ridges (for example, Figure 2 As shown in FIG. 4 , the upper ends of the plurality of edges are inclined downward to form a guide slope 1032 .

[0059] Correspondingly, the fastening accessory 104 may further include a positioning cap 1042, which may include an annular body 1042a, which is sleeved outside the locking mechanism 103; a guide bevel anchor claw 1042b provided on the lower end surface of the body 1042a, the guide bevel anchor claw 1042b corresponds to the guide bevel surface 1032 and is equal in number, and the guide bevel anchor claw 1042b is radially inclined inward and can touch the corresponding guide bevel surface 1032; a positioning claw 1042c provided on the lower end surface of the body 1042a and extending downward, the lower end of the positioning claw 1042c extends radially outward to form a hanging portion 1042d, and the upper end surface of the hanging portion 1042d forms a hanging surface (not shown). The hanging surface can fix the lower surface of the fixing member 200 when the locking mechanism 103 extends and penetrates the corresponding mounting hole 201.

[0060] In this embodiment, the outer wall of the positioning claw 1042c is inclined and made of a soft elastic material. With this structural design, when the positioning cap 1042 is sleeved on the locking mechanism 103 and inserted into the mounting hole 201 together with the locking mechanism 103, the inclined outer wall of the positioning claw 1042c can contact the inner wall of the mounting hole 201 and undergo radial contraction and deformation under the action of the contact until the positioning claw 1042c passes through the mounting hole 201 and rebounds to its original shape, so that the upper surface of the hanging portion 1042d, i.e., the hanging surface, presses or contacts the lower surface of the fixing member 200 located at the edge of the mounting hole 201, thereby realizing the positioning or locking of the locking mechanism 103, i.e., the base 102 is pre-positioned or locked on the fixing member 200.

[0061] The positioning cap 1042 having a main body 1042a and a plurality of guide anchor claws 1042b disposed on the lower end surface of the main body 1042a and extending obliquely inwardly can be roughly in the shape of a hollow cone. The number of the guide anchor claws 1042b can be as follows: Figure 2In fact, as long as the guide bevel anchor claws 1042b are arranged correspondingly to the guide bevel surface 1032, the number of the guide bevel anchor claws 1042b can be freely set, and the present invention does not limit this.

[0062] By providing the guide bevel anchor claws 1042 b corresponding to the plurality of guide bevel surfaces 1032 , the cooperation between the positioning cap 1042 and the locking mechanism 103 can be limited to achieve the positioning and cooperation installation between the two, thereby preventing the locking mechanism 103 from rotating during the insertion into the installation hole 201 .

[0063] like Figure 2 As shown, further, the fastening accessory 104 may also include a clamping element 1043, which may include a bottom 1043a and a spring piece 1043c connected to the bottom 1043a and extending obliquely upward. The bottom 1043a may be provided with a through hole 1043b for the fastening bolt 1041 to pass through, the spring piece 1043c corresponds to the guide bevel anchor claw 1042b and the number is equal, the inner wall of the spring piece 1043c may be clamped on the outer wall of the corresponding guide bevel anchor claw 1042b, and a radially inward encircling force is applied to the guide bevel anchor claw 1042b, so that the positioning cap 1042 can be fixed to prevent it from falling off.

[0064] In addition, the lower end surface of the locking mechanism 103 may extend downward to form an anti-rotation protrusion 1033 (one or more, one anti-rotation protrusion 1033 is located between two adjacent guide inclined surfaces 1032), and the anti-rotation protrusion 1033 may be embedded between two adjacent spring sheets 1043c when the locking mechanism 103 extends and penetrates the corresponding mounting hole 201. In this way, the anti-rotation protrusion 1033 can stop the spring sheet 1043c and prevent the clamping element 1043 from rotating.

[0065] In this embodiment, the upper end of the spring sheet 1043c is slightly bent outward to increase the contact area between it and the lower surface of the fixing member 200, so as to improve the stability of anchoring. In addition, a plurality of positioning protrusions 105 may be formed around each locking mechanism 103 (the plurality of positioning protrusions 105 may correspond to or may not correspond to the plurality of spring sheets 1043c), and the fixing member 200 may be clamped and fixed between the upper end of the spring sheet 1043c and the positioning protrusions 105, so as to avoid the fixing member 200 being loosely fixed due to an uneven surface.

[0066] The reason why it is difficult to meet the waterproof reliability requirements of the antenna assembly by setting up a locking mechanism in the known embodiments is that if the opening area on the roof sheet metal, that is, the fixing part, is large (in fact, only one locking mechanism is used to fix the antenna assembly, and in order to meet the requirements of installation stability, the opening area is generally set larger), then only one locking mechanism may cause the waterproof sealing ring (with a correspondingly large coverage area) to be unevenly compressed and have a higher risk of water leakage.

[0067] In addition, if the size of the antenna cover is relatively large, the matching of only one locking mechanism and the fixing piece may also cause an uneven matching gap between the two, thereby causing the sealing ring to be unevenly compacted, resulting in poor waterproofing effect.

[0068] In the embodiment of the present invention, a sealing ring 106 may be provided on the lower surface of the base 102, and the sealing ring 106 may surround the plurality of locking mechanisms 103. Furthermore, since there are a plurality of locking mechanisms 103 and the area of ​​the base 102 is reduced compared to the prior art, the sealing ring 106 can be compacted better and the compaction force is more uniform, so that the mounting hole 201 can be sealed to prevent water, dust, dirt, etc. from entering the vehicle through the mounting hole 201, and the waterproof and dustproof effect is better.

[0069] like Figure 2 and Figure 3 As shown, the base 102 may be provided with an opening 1022, the antenna element 109 may be connected to the connector 107 by welding, and the connector 107 may be inserted into the opening 1022. In addition, the fixing member 200 may be provided with another through hole 202 corresponding to the opening 1022 and used for the connector 107 to pass through. Thus, the relay line or wiring harness connected to the in-vehicle electronic device may be connected to the antenna element 109 through the connector 107, so that the connection between the antenna element 109 and the in-vehicle electronic device becomes simple.

[0070] In this embodiment, the opening 1022 is spaced apart from the plurality of locking mechanisms 103. Preferably, the opening 1022 can be disposed at a position close to the center of the rectangular plate-shaped base 102 and between two locking mechanisms 103. In this way, the connector 107 inserted into the opening 1022 is disposed away from the two locking mechanisms 103, so that the connector 107 does not cause structural interference to the locking mechanisms 103. In this way, the cooperation between the locking mechanisms 103 and the fastening accessories 104 makes it more convenient to realize the fixed installation of the antenna assembly 100.

[0071] The number of openings 1022 can be set according to the number of connectors 107, which can be one or more. For example, if the number of connectors 107 is two, then a larger opening 1022 can be set, or, Figure 3 As shown, two openings 1022 are provided, and the two openings 1022 are arranged side by side corresponding to the two connectors 107 and are located approximately close to the center of the base 102. The advantage of such an arrangement is that the strength of the base 102 will not be greatly lost.

[0072] like Figure 1 and Figure 2As shown, the lower end surface of the base 102 may be provided with a downwardly protruding RF grounding spring sheet 108 , and the number of the RF grounding spring sheet 108 is one.

[0073] Generally, two RF grounding springs are generally provided on the base of the antenna assembly in the known embodiments, while the present invention adopts a structural design of multiple locking mechanisms 103, and a plurality of corresponding fastening accessories 104 are provided in a matching manner, wherein the multiple springs 1043c of the multiple clamping elements 1043 touch the fixing member 200 (in practice, touch the roof sheet metal). As a result, the antenna assembly 100 and the fixing member 200 of the embodiment of the present invention have enough grounding points to maintain stable grounding performance. Therefore, the embodiment of the present invention sets the number of RF grounding springs 108 to one, so that the antenna assembly 100 can still achieve the same grounding effect.

[0074] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the foregoing claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended to be a waiver of such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed inventive subject matter.

Claims

1. An antenna assembly, which can be mounted on a fixing member, wherein the fixing member is provided with a plurality of mounting holes; characterized in that: The antenna assembly comprises: Cover body; A base connected to the lower end of the cover body, an accommodating space is formed between the base and the cover body, an antenna element that operates at at least one frequency and is accommodated in the accommodating space can be provided on the upper surface of the base, and a locking mechanism extending downward is provided on the lower surface of the base, the locking mechanisms correspond to the mounting holes and are equal in number, and the locking mechanisms can extend through the corresponding mounting holes; the number of the locking mechanisms is two; the cross-sectional area of ​​the base is smaller than the area of ​​the lower end surface of the cover body; the base is in the shape of a rectangular plate, and the two locking mechanisms are provided at positions of the base close to the edge along its length direction; A fastening accessory, wherein the fastening accessory cooperates with the locking mechanism so that the base can be fixed on the fixing member; the fastening accessory further comprises: a clamping element, wherein the clamping element comprises a bottom and a spring sheet connected to the bottom and extending obliquely upward; The locking mechanism is equipped with a plurality of corresponding fastening accessories, wherein the plurality of spring pieces of the clamping element contact the fixing member to cooperate to form a grounding point between the antenna assembly and the fixing member; A sealing ring is provided on the lower surface of the base, and the sealing ring surrounds the two locking mechanisms; The lower end surface of the base is provided with an RF grounding spring sheet protruding downward.

2. The antenna assembly according to claim 1, wherein: A threaded hole is provided in the locking mechanism; The fastening fitting comprises a fastening bolt, and the fastening bolt is screwed into the threaded hole.

3. The antenna assembly according to claim 2, wherein: The side wall of the locking mechanism is formed with a plurality of guide slopes; The fastening accessory further comprises: a positioning cap, the positioning cap comprising: A ring-shaped body, wherein the body is sleeved outside the locking mechanism; Anchor claws are arranged on the lower end surface of the body, the anchor claws correspond to the inclined guide surfaces and are equal in number, the anchor claws are inclined radially inward and touch the corresponding inclined guide surfaces; A positioning claw is arranged on the lower end surface of the main body, and the positioning claw extends downward. The lower end of the positioning claw extends radially outward to form a hanging portion, and the hanging portion has a hanging surface; when the locking mechanism extends and passes through the corresponding mounting hole, the hanging surface fixes the lower surface of the fixing member.

4. The antenna assembly according to claim 3, characterized in that The base is provided with a through hole for the fastening bolt to pass through, the spring pieces correspond to the deflection guide anchor claws and are equal in number, and the inner wall of the spring piece is clamped on the outer wall of the corresponding deflection guide anchor claw.

5. The antenna assembly according to claim 4, characterized in that The lower end surface of the locking mechanism extends downward to form an anti-rotation protrusion, and the anti-rotation protrusion is embedded between two adjacent spring sheets when the locking mechanism extends and passes through the corresponding mounting hole.

6. The antenna assembly according to claim 4, wherein: A positioning protrusion is formed around each locking mechanism, and the fixing member can be reinforced between the upper end of the spring sheet and the positioning protrusion.

7. The antenna assembly according to claim 1 or 6, characterized in that: The number of the RF grounding spring is one.

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