CN216980874U

CN216980874U - Shielding piece, shielding piece assembly and antenna

Info

Publication number: CN216980874U
Application number: CN202220973349.3U
Authority: CN
Inventors: 刘鹏; 孙静; 王永强
Original assignee: Rosenberger Technologies Co Ltd
Current assignee: Prologis Communication Technology Suzhou Co Ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-07-15
Anticipated expiration: 2032-04-25
Also published as: WO2023207136A1

Abstract

The utility model discloses a shielding piece, a shielding piece assembly and an antenna, wherein the shielding piece comprises a body, a grounding part and a clamping part. The body is provided with a through hole for the conductor to penetrate through, and the shielding piece is respectively provided with a grounding part and a clamping part corresponding to the two ends of the through hole. The grounding part is used for grounding, and the clamping part is used for butting an external component. The body corresponds to the edge of the through hole and is close to one side of the grounding part, and at least one first boss extends towards the central area of the through hole to form a grounding part. Meanwhile, the body extends towards one side of the outer assembly to form at least one second boss so as to form a clamping part. The shielding piece is grounded through the first boss, so that the signal shielding effect is achieved, and signal leakage is avoided. Simultaneously, one side that the through-hole edge just is close to the joint plate is located to first boss to extend towards through-hole central zone, more be favorable to shielding part body laminating outside subassembly, shielding effect is better, and the ground connection effect is also more secure.

Description

Shielding piece, shielding piece assembly and antenna

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a shield, a shield assembly, and an antenna.

Background

With the rapid development of modern technologies, 5G Communication Technology (5th Generation Mobile Communication Technology) is becoming more and more mature. The 5G communication technology has the characteristics of high speed, low time delay, large connection and the like, is a network infrastructure for realizing man-machine-object interconnection, and is widely applied to various fields. The Massive antenna technology Massive MIMO (Massive Multiple-Input Multiple-Output) greatly increases the number of antennas, greatly improves the system capacity and the transmission efficiency, and is one of the 5G key technologies.

However, in the prior art, the shielding structure commonly used for the radiating element in the Massive MIMO antenna cannot be well attached to the joint plate and the feeding plate, and the shielding effect is poor. In addition, a medium is often provided between the conductive member and the shield member, which is costly and tends to cause signal loss and affect the radiation performance of the antenna.

Therefore, how to improve the technical defects in the prior art is always a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shielding piece, a shielding piece assembly and an antenna, which have better shielding effect, are beneficial to improving the radiation performance of the antenna and realize mass production.

The technical scheme provided by the utility model is as follows:

a shield, comprising:

the body, the grounding part and the clamping part;

the body is provided with a through hole for the conductor to penetrate through, and the grounding part and the clamping part are respectively arranged at two ends of the body corresponding to the through hole;

the grounding part is used for grounding, and the clamping part is used for butting an external part;

the body corresponds to the edge of the through hole and one side close to the grounding part, and at least one first boss extends towards the central area of the through hole to form the grounding part; and

at least one second boss extends from one side of the body facing the external part to form the clamping part.

In some embodiments, a gap is left between the shield and the conductor.

In some embodiments, the first boss is of a rectangular plate-like configuration;

and/or

The second boss is of a rectangular plate-shaped configuration.

In some embodiments, the first bosses are evenly spaced;

and/or

The second bosses are uniformly distributed at intervals.

In some embodiments, the shield is made of a metallic material.

The present invention also provides a shield assembly comprising:

the shielding piece comprises a feed board, a reflecting board, a connector board, a conductor and any one of the shielding pieces which are arranged in sequence;

the conductor penetrates through the feed board, the reflecting board, the joint board and the shielding piece;

the reflecting plate is provided with a containing hole for containing the shielding piece.

In some embodiments, a gap is left between the receiving hole and the shield.

In some embodiments, the joint plate is welded to the first boss;

and/or

And the conductor is welded and fixed with the joint plate.

In some embodiments, the feed board has a fixing hole corresponding to the second boss region, and the second boss penetrates through the fixing hole to fixedly connect the feed board and the shielding member.

The utility model also provides an antenna comprising the shielding component provided by any one of the above items.

The utility model has the technical effects that:

1. in this patent, the shielding part is through making first boss ground connection to make the shielding part can play the effect of shielding signal, avoid signal leakage. Moreover, in this patent, the one side that the through-hole edge just is close to the joint position is located to first boss to extend towards through-hole central zone, more be favorable to shielding part body laminating joint position, when making the shielding effect better, the ground connection effect is also more secure. It is worth noting that in the patent, the conductor directly penetrates through the through hole arranged on the shielding element body, so that the original medium is omitted, the signal loss is reduced, and the radiation performance of the antenna is improved. Meanwhile, the medium is saved, so that the cost can be greatly reduced, and the mass production is realized.

2. In this patent, leave the clearance between shield and the conductor to produce certain impedance, further improved the radiation performance of antenna. In contrast, a gap is also reserved between the accommodating hole and the shielding piece, so that the shielding piece can be prevented from directly contacting the reflecting plate, short circuit is caused, and the service performance of the shielding piece is influenced.

3. In this patent, first boss can also arrive certain positioning action when with joint plate welded fastening for joint plate and first boss installation accuracy are higher and with low costs. Relatively, the feed board is in embedded fit with the second boss, so that a user can maintain and replace the feed board conveniently, and the feed board is convenient to disassemble and assemble and high in efficiency.

Drawings

The utility model is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a perspective view of a shield assembly provided in accordance with the present invention in one state;

FIG. 2 is a perspective view of the shield assembly provided in accordance with the present invention in another state;

FIG. 3 is an exploded perspective view of the shield assembly shown in FIG. 2;

FIG. 4 is a perspective view of the shield of the present invention in one state;

fig. 5 is a perspective view of the shield according to another embodiment of the present invention.

The reference numbers illustrate:

100. a shield; 110. a body; 111. a through hole; 120. a first boss; 130. a second boss;

200. a conductor; 210. supporting;

300. a joint plate; 310. welding a port;

400. a feed board; 410. a fixing hole;

500. a reflective plate; 510. a receiving hole.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the utility model, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "a" means not only "only one of this but also a case of" more than one ".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present application, the terms "first," "second," and the like are used only to distinguish descriptions, and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-5, a shield 100, a shield assembly, and an antenna are provided according to an embodiment of the present invention. The shielding member 100 includes a body 110, a grounding portion and a clamping portion, the body 110 has a through hole 111 for the conductor 200 to pass through, and the shielding member 100 has a grounding portion and a clamping portion respectively corresponding to two ends of the through hole 111. The grounding part is used for grounding, and the clamping part is used for butting an external part.

The body 110 has at least one first protrusion 120 extending toward a central region of the through hole 111, corresponding to an edge of the through hole 111 and near the grounding portion, to form the grounding portion. The body 110 has at least one second protrusion 130 extending toward one side of the outward connecting part to form the above-mentioned clamping portion.

In this embodiment, the shielding element 100 is grounded through the first boss 120, so that the shielding element 100 can shield signals and prevent signal leakage. In addition, in this embodiment, the first protrusion 120 is disposed on a side of the body 110 corresponding to the edge of the through hole 111 and close to the grounding portion, and extends toward the central region of the through hole 111, which is more beneficial for the body 110 of the shielding member 100 to attach to the grounding portion, so that the shielding effect is better and the grounding effect is better guaranteed.

In contrast, the second boss 130 is disposed on a side of the body 110 facing the external connection member to abut against the external connection member. In this embodiment, to ensure the shielding effect of the shielding element 100, the body 110 should also be attached to the external member. At this time, the area of the external component corresponding to the second boss 130 should be provided with a fixing hole 410 for the second boss to pass through, so that the body 110 of the shielding element 100 can be attached to the external component, thereby achieving a better shielding effect. Meanwhile, the second boss 130 can also play a certain positioning role, and is convenient and quick to install.

In addition, in the present embodiment, the conductor 200 directly penetrates through the through hole 111 formed in the main body 110 of the shielding element 100, so that a medium commonly used in the prior art is omitted, signal loss is reduced, and radiation performance of the antenna is improved. Meanwhile, the cost can be greatly reduced by omitting the medium, the medium does not need to be replaced frequently, the mass production of the shielding part 100 is facilitated, the daily maintenance of the shielding part 100 is facilitated, and the practicability of the shielding part 100 is improved.

It should be noted that a gap should be left between the shielding member 100 and the conductor 200, so as to generate a certain impedance, and further improve the radiation performance of the antenna.

Preferably, referring to fig. 3-5, shield 100 and conductor 200 are each preferably cylindrical in configuration and are coaxially disposed. At this time, the size of the gap between the shielding element 100 and the conductor 200 is equal everywhere, and the generated impedance is more uniform, thereby further improving the radiation performance of the antenna.

In practical production, the size of the gap between the shielding element 100 and the conductor 200 should be flexibly set according to practical requirements, and is not described herein again and falls within the protection scope of the present invention.

Specifically, referring to fig. 4 and 5, the first boss 120 has a rectangular plate-shaped configuration, and the second boss 130 has a rectangular plate-shaped configuration. Of course, in actual production, the first boss 120 may also have other polygonal plate-shaped structures, and should be flexibly arranged according to actual situations, which are not described herein and are within the protection scope of the present invention.

In contrast, the specific configuration of the second boss 130 can be flexibly configured according to practical situations, such as a cylindrical configuration, a triangular prism configuration, etc., without limitation, and is within the scope of the present invention.

Preferably, referring to fig. 4 and 5, the first bosses 120 are uniformly spaced apart, and the second bosses 130 are uniformly spaced apart. Thus, the shielding element 100 can be more firmly butted with the connector board 300 and the feed board 400, so that the strength of the whole structure is improved, the stress performance is better, the service performance of the shielding element 100 is greatly improved, and the service life of the shielding element is greatly prolonged.

In the present embodiment, the number of the first bosses 120 is four, and the number of the second bosses 130 is two. Of course, in practical production, the number of the first bosses 120 and the second bosses 130 can be flexibly set according to practical requirements, and is within the protection scope of the present invention.

Furthermore, the shielding member 100 is made of a metal material, so that the shielding effect is better, signal leakage can be effectively avoided, and the radiation performance of the antenna is improved. Preferably, the body 110, the first boss 120 and the second boss 130 are integrally formed. Compared with other forming modes, the shielding part 100 formed by integrally forming the structure has higher strength and low cost, is beneficial to mass production of the shielding part 100, and greatly improves the economic benefit of the shielding part 100.

Referring to fig. 1 to 3, the present invention further provides a shielding component, which may specifically include a feeding board 400, a reflecting board 500, a connector board 300, a conductor 200, and the shielding component 100 provided in any one of the above embodiments. The conductor 200 is disposed through the feeding board 400, the reflection board 500, the connector board 300 and the shielding element 100, and the reflection board 500 is opened with a receiving hole 510 for receiving the shielding element 100.

The conductor 200 is used to connect the circuit between the feeding board 400 and the connector board 300, so as to realize signal transmission. The reflective plate 500 is made of a metal material, preferably an aluminum alloy.

In this case, the grounding portion mentioned in the above embodiment is the connector plate 300, and the shielding element 100 is fixed to the connector plate 300 through the first boss 120. In contrast, the external connection component is the feeding board 400, and the shielding component 100 is butted with the feeding board 400 through the second boss 130.

Preferably, a gap should be left between the accommodating hole 510 and the shielding element 100, and the accommodating hole 510 and the shielding element 100 are coaxially arranged, so as to prevent the shielding element 100 from directly contacting the reflection plate 500, thereby causing a short circuit, which may affect signal transmission, interfere with communication, burn out a circuit, damage an antenna, and endanger personal equipment safety of a communication department.

In practical production, the size of the gap between the accommodating hole 510 and the shielding member 100 can be flexibly set according to practical requirements, and it is sufficient to ensure that no short circuit occurs, and the utility model is not limited herein and falls within the protection scope of the utility model.

In one embodiment, the connector board 300 is fixed to the first boss 120 by soldering, preferably by SMT (Surface Mount Technology) reflow soldering. Reflow soldering is the most commonly used method for bonding electronic components to a printed circuit board in surface mount technology, and aims to gradually melt solder and slowly heat the bonding interface to avoid rapid heating and damage to the electronic components.

It should be noted that, referring to fig. 3, the joint plate 300 is provided with a welding opening 310 corresponding to the first boss 120, and the welding opening 310 and the first boss 120 are arranged in a one-to-one correspondence manner, so as to play a certain positioning role, have a simple structure and a low cost, ensure the welding precision, improve the welding consistency, and greatly reduce the influence caused by poor welding.

In contrast, the conductor 200 and the connector board 300 are also fixed by welding, and preferably adopt the SMT reflow soldering technique, so that the welding time is reduced, the cost is saved, and meanwhile, good welding consistency can be ensured, and the overall performance of the shielding component assembly is more stable. At this time, the abutting table 210 is disposed at one end of the conductor, and when the other end of the conductor sequentially passes through the connector board 300, the reflection plate 500 and the feeding board 400, the abutting table 210 abuts against the connector board 300 to perform a limiting function. Specifically, the conductor can be welded and fixed on the joint plate 300 through the abutment 210, so that the welding precision is higher, and the welding consistency is further improved.

Specifically, referring to fig. 2 and 3, a fixing hole 410 is formed in a region of the feeding board 400 corresponding to the second boss 130, and the second boss 130 penetrates through the fixing hole 410 to fixedly connect the feeding board 400 and the shielding member 100.

In this embodiment, the fixing hole 410 and the second boss 130 are matched with each other to achieve a certain positioning effect, so that the installation is more convenient and faster. Meanwhile, in the embodiment, the second bosses 130 directly penetrate through the fixing holes 410, so that the feed board 400 is fixedly connected with the shielding member 100, the feed board 400 and the reflecting board 500 can be maintained and replaced by a user, the disassembly and the assembly are more convenient and efficient, and the time cost is reduced.

Further, in order to improve the fixed connection between the feeding board 400 and the shielding element 100, a fastening structure may be further disposed on the feeding board 400 and the shielding element 100, and the feeding board 400 is fixed to the shielding element 100 through the fastening and embedding of the fastening structure, so that the feeding board 400 is convenient to disassemble and assemble and is fixed firmly. Certainly, after the feeding board 400 and the shielding element 100 are assembled, a clamp or other limiting member may be sleeved on the second boss 130 to prevent the feeding board 400 from moving relative to the second boss 130, so that the feeding board 400 and the shielding element 100 are connected more stably, and the overall stability of the shielding element assembly provided by this embodiment is improved.

Of course, in practical production, the connection mode between the feeding board 400 and the shielding member 100 may be flexibly set according to practical situations, and is not limited herein and is within the protection scope of the present invention.

Preferably, the two ends of the shielding element 100, which are provided with the grounding portion and the clamping portion, should be respectively attached to the connector board 300 and the feeding board 400, so that a gap is not left as much as possible, thereby ensuring that the shielding element 100 can exert the maximum shielding effect, avoiding signal leakage, and improving the radiation performance of the antenna.

The utility model also provides an antenna comprising the shielding component provided by any one of the embodiments. In particular, the antenna is a Massive MIMO antenna, which is widely used in 5G communication networks.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

1. A shield, comprising:

the body, the grounding part and the clamping part;

2. The shield of claim 1,

a gap is left between the shield and the conductor.

3. Shielding according to claim 1 or 2,

the first boss is in a rectangular plate-shaped structure;

and/or

The second boss is in a rectangular plate-shaped structure.

4. Shield according to claim 1 or 2,

the first bosses are uniformly distributed at intervals;

and/or

The second bosses are uniformly distributed at intervals.

5. Shield according to claim 1 or 2,

the shielding piece is made of metal materials.

6. A shield assembly, comprising:

a feed board, a reflection board, a connector board, a conductor and the shielding member of claims 1-5 arranged in sequence;

7. The shield assembly of claim 6,

a gap is reserved between the accommodating hole and the shielding piece.

8. The shield assembly of claim 6 or 7,

the joint plate is welded and fixed with the first boss;

and/or

And the conductor is welded and fixed with the joint plate.

9. Shield assembly according to claim 6 or 7,

the feed board is provided with fixing holes corresponding to the second boss areas, and the second bosses penetrate through the fixing holes so as to fixedly connect the feed board with the shielding pieces.

10. An antenna comprising a shield assembly according to any one of claims 6 to 9.