Patent Grant
11444407
The present application claims priority from and the benefit of Chinese Patent Application No. 201910597017.2, filed Jul. 4, 2019, the disclosure of which is hereby incorporated herein in its entirety.
The present disclosure relates generally to the field of base station antennas. More specifically, the present disclosure relates to a modular connector assembly for a base station antenna and the base station antenna including the same.
In order to connect input jumpers to a base station antenna, a plurality of connectors are typically fixed on an end cover of the base station antenna to facilitate the insertion of the input jumpers.
In practice, such means of fixing may have many drawbacks. Firstly, as shown in
An object of the present disclosure is to address one or more of the above-mentioned and other issues and to achieve additional advantages.
In the first aspect of the present disclosure, a modular connector assembly is provided which includes a support and a plurality of connectors mounted on the support. The support is configured as a one-piece support and provided with a plurality of through holes for mounting the plurality of connectors. Each of the plurality of connectors is configured to be formed of a first component and a second component, the first component being connectable to the second component. The first component and the second component of each of the plurality of connectors are located on opposite sides of the support, respectively; are connected to each other by passing through one of the plurality of through holes in the support; and sandwich the support therebetween, thereby fixedly mounting each of the plurality of connectors to the support.
According to an embodiment of the present disclosure, each of the plurality of connectors is configured as a coaxial connector that includes an inner contact and an outer contact.
According to an embodiment of the present disclosure, a component selected from the first component and the second component includes the inner contact and/or the outer contact.
According to an embodiment of the present disclosure, a component selected from the first component and the second component includes the inner contact, and a component selected from the first component and the second component includes the outer contact.
According to an embodiment of the present disclosure, the first component is connectable to the second component by a press fit.
According to an embodiment of the present disclosure, the first component is connectable to the second component by a thread fit.
According to an embodiment of the present disclosure, a component selected from the first component and the second component is provided with a boss on an outer circumference thereof, and the boss cooperates with an end surface of a different component selected from the first component and the second component to sandwich the support therebetween.
According to an embodiment of the present disclosure, each of the first component and the second component is provided with a boss on an outer circumference thereof, and the boss of the first component cooperates with the boss of the second component to sandwich the support therebetween.
According to an embodiment of the present disclosure, each of the plurality of through holes in the support has a non-circular shape for preventing a respective connector from rotating therein.
According to an embodiment of the present disclosure, the support is a plastic support.
According to an embodiment of the present disclosure, the modular connector assembly may form an end cover of a base station antenna.
According to an embodiment of the present disclosure, the modular connector assembly is fixed to an end cover of a base station antenna.
According to an embodiment of the present disclosure, the modular connector assembly is fixed to the end cover of the base station antenna by a quick lock nut.
According to an embodiment of the present disclosure, the quick lock nut is a plastic quick lock nut.
According to an embodiment of the present disclosure, the quick lock nut includes a locking element, and the end cover of the base station antenna includes a mating locking element that mates with the locking element of the quick lock nut.
According to an embodiment of the present disclosure, the support of the modular connector assembly includes a mating locking element that mates with the locking element of the quick lock nut.
According to an embodiment of the present disclosure, the locking element of the quick lock nut includes a locking bar. The locking bar is configured to be locked inside a slot included in the mating locking element of the end cover of the base station antenna.
According to an embodiment of the present disclosure, the locking bar is configured to be locked inside a slot included in the mating locking element of the support of the modular connector assembly.
According to an embodiment of the present disclosure, a first locating component selected from the support of the modular connector assembly and the end cover of the base station antenna is provided with a locating post, and a second locating component selected from the support of the modular connector assembly and the end cover of the base station antenna is provided with a locating hole for receiving the locating post.
According to an embodiment of the present disclosure, the locating post is configured as an integral part of the first locating component.
According to an embodiment of the present disclosure, the locating post includes a non-return feature. The non-return feature can prevent the locating post from being withdrawn from the locating hole when the non-return feature passes through the locating hole.
According to an embodiment of the present disclosure, the locating post is configured to comprise a stalk having a first diameter and a head having a second diameter, the second diameter being larger than the first diameter, wherein a lower surface of the head serves as the non-return feature.
According to an embodiment of the present disclosure, the locating post includes two or more resilient components flared away from each other, each of the two or more resilient components including a portion of the stalk and a portion of the head, wherein the head is able to pass through the locating hole when the two or more resilient components are converged, and the lower surface of the head is able to prevent the locating post from being withdrawn from the locating hole when the two or more resilient components are flared away from one another.
According to a second aspect of the present disclosure, a modular connector assembly is provided. The modular connector assembly comprises at least one connector configured to attach to a cable and a support configured to attach to a structure. The at least one connector includes: a first component including a portion of a first contact, the first contact corresponding to a first conductor of the cable; and a second component including a portion of a second contact, the second contact corresponding to a second conductor of the cable; wherein the first component is configured to connect to the second component; and wherein the support is sandwiched between the first component and the second component.
According to a third aspect of the present disclosure, a base station antenna is provided. The base station antenna comprises an end cover and at least one connector assembly mounted on the end cover. The connector assembly is configured as the modular connector assembly according to the present disclosure.
A plurality of aspects of the present disclosure will be better understood with reference to the following detailed description of the embodiments of the present disclosure in conjunction with the drawings, wherein:
The present disclosure will be described below with reference to the drawings, in which several embodiments of the present disclosure are shown. It should be understood, however, that the present invention may be implemented in many different ways and is not limited to the example embodiments described below. In fact, the embodiments described hereinafter are intended to make a more complete disclosure of the present invention and to adequately explain the scope of the present invention to a person skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide many additional embodiments.
It should be understood that the wordings in the specification are only used for describing particular embodiments and are not intended to limit the present invention. All the terms used in the specification (including technical and scientific terms) have the meanings as normally understood by a person skilled in the art, unless otherwise defined. For the sake of conciseness and/or clarity, well-known functions or constructions may not be described in detail.
The singular forms “a/an” and “the”, as used in the specification, unless clearly indicated, all contain the plural forms. The terms “comprising”, “containing” and “including” used in the specification indicate the presence of the claimed features, but do not preclude the presence of one or more additional features. The term “and/or” as used in the specification includes any and all combinations of one or more of the relevant items listed.
The terms “first” and “second” as used in the specification are only for ease of description and are not intended to be limiting. Any technical features represented by the terms “first” and “second” are interchangeable.
In the specification, terms describing spatial relationships such as “up”, “down”, “top”, “bottom” and the like may describe a relation of one feature to another feature in the drawings. It should be understood that these terms also encompass different orientations of the apparatus in use or operation, in addition to encompassing the orientations shown in the drawings. For example, when the apparatus in the drawings is turned over, the features previously described as being “below” other features may be described to be “above” other features at this time. The apparatus may also be otherwise oriented (rotated 90 degrees or at other orientations) and the relative spatial relationships will be correspondingly altered.
In the present disclosure, connectors may be integrated in a support to form a modular connector assembly, and the resulting modular connector assembly may then be fixed to a structure in a quick and simple manner. The structure may generally be any structure containing electrical cables which may be terminated at a connector along a cover plate. For example, the structure may include a base station antenna, and the modular connector assembly may be affixed to the end cover of the base station antenna. In some embodiments, the modular connector assembly may itself form or comprise an end cover for a base station antenna which may replace or overlap an existing end cover. For instance, the connectors may be integrated in a support as disclosed herein, and the support may itself be the end cover for a base station antenna.
Advantageously, the use of metal fasteners (such as screws) may not be required, thus not only significantly shortening the time taken to assemble and fix the connectors, but also avoiding or decreasing “crosstalk” between the connectors, which may be caused by the metal fasteners.
Referring to
The support 110 may be configured as a support plate and may have any suitable profile. The support 110 may be a plastic or polymer support that is formed by injection molding.
By means of the one-piece support 110, the plurality of connectors 120 can be integrated together to form the modular connector assembly 100 according to the present disclosure. In the embodiment shown in
Referring to
According to an embodiment of the present disclosure, the connector 120 comprises a 4.3-10 female connector interface. However, the connector 120 may comprise other types of the connector interfaces, such as a NEX10 connector interface, a 2.2-5 connector interface, an SMA connector interface, an N-type connector interface, a 7/16 radio frequency connector interface, and the like. Additionally, the connector 120 may also be other types of the connectors.
The first component 121 and the second component 122 of the connector 120 may include a first connection feature 1211 and a second connection feature 1221 that mate with each other, respectively. The first component 121 and the second component 122 of the connector 120 may be connected together by means of the first connection feature 1211 and the second connection feature 1221. In one embodiment of the present disclosure, the first connection feature 1211 includes a cylindrical cavity, while the second connection feature 1221 includes a cylindrical body that is receivable in the cylindrical cavity of the first connection feature 1211.
In the embodiment shown in
In the embodiment shown in
In the embodiments shown in
Returning to
In one embodiment according to the present disclosure, the support 110 may be sandwiched between a first surface on the first component 121 and a second surface on the second component 122. In one example, the end surface of the first component 121 includes a first sandwiching surface and the end surface of the second component 122 includes a second sandwiching surface for sandwiching the support 110 therebetween. In some embodiments, support 110 may be sandwiched between a boss including a sandwiching surface (for example, a first boss 1214 or a second boss 1224) disposed on the first component 121 or the second component 122 and an end surface including a sandwiching surface disposed on the other of the first component 121 or the second component 122. For example, one boss may be provided on the outer circumference of the first component 121 and/or the second component 122. For example, the second component 122 may be provided with a second boss 1224 on its outer circumference. In this embodiment, the support 110 is allowed to be sandwiched between the first component 121 and the second component 122 by an end surface of the first component 121 and the second boss 1224 of the second component 122. Specifically, the first connection feature 1211 of the first component 121 has an outer diameter designed to be larger than an inner diameter of the through hole 111 in the support 110, such that the first connection feature 1211 does not extend into the through hole 111. The second connection feature 1221 of the second component 122 extends from one side of the support 110 through the through hole 111 in the support 110 and projects out from the other side of the support 110. The portion of the second connection feature 1221 that projects out from the other side of the support 110 is inserted or screwed into the cylindrical cavity of the first connection feature 1211 of the first component 121 until the end surface of the first component 121 and the second bosses 1224 of the second component 122 abut against the first and the second surfaces of the support 110 from each side respectively. In this way, the support 110 is sandwiched between the first component 121 and the second component 122 by the end surface of the first component 121 and the second boss 1224 of the second component 122.
In one embodiment, when the through hole 111 in the support 110 has an inner surface in a non-circular shape, a portion of the second connection feature 1221 of the second component 122 to be located in the through hole 111 may be configured to have an outer surface in a corresponding non-circular shape, so as to prevent the connector 120 from rotating inside the through hole 111. Specifically, the second connection feature 1221 of the second component 122 may include a first portion and a second portion. When the connector 120 is mounted onto the support 110, the first portion of the second connection feature 1221 is located inside the through hole 111 of the support 110, whereas the second portion of the second connection feature 1221 extends out of the through hole 111. The first portion of the second connection feature 1221 has a non-circular outer surface that matches the non-circular inner surface of the through hole 111, and the second portion of the second connection feature 1221 has a feature that matches the first connection feature 1211 (for example, a corresponding press-fit feature or thread-fit feature).
Referring to
Correspondingly, mating locking elements 202 and 112 that cooperate with the locking bar 303 of the quick lock nut 300 are provided on the end cover 200 of the base station antenna and the support 110 of the modular connector assembly 100, respectively. As shown in
In some embodiments, a slot 113 may be provided on an inner surface of the first portion of the circular through hole. The slot 113 is also open at top end such that the locking bar 303 is also accessible to the slot 113 and movable along the extension path of the slot 113. The numbers of the slots 203 and 113 are equal to the number of the locking bars 303 respectively, such that each locking bar 303 is accessible to one corresponding slot 203 and one corresponding slot 113. The extension paths of the slots 203 and 113 are configured as curved extension paths having the same profile, such that when the locking bar 303 is moved along the curved extension paths to the bottom ends of the slots 203 and 113, the locking bar 303 is unable to automatically exit the slots 203 and 113, thereby being locked inside the slots 203 and 113.
In some embodiments, holes 201 may be provided on the end cover 200 of the base station antenna. The connectors 120 of the modular connector assembly 100 may pass through the holes 201. When mounting the modular connector assembly 100 to the end cover 200 of the base station antenna, the connectors 120 of the modular connector assembly 100 pass through the holes 201 in the end cover 200, and the mating locking element 202 on the end cover 200 extends into the mating locking element 112 in the support 110. The end cover 200 and the support 110 may abut against each other or be spaced apart from each other, and the slots 203 and 113 are aligned with each other. The locking bars 303 of the quick lock nut 300 may be inserted into the slots 203 and 113 from the top ends of the slots 203 and 113 (that is, each locking bar 303 is simultaneously put into a pair of slots 203 and 113 which are aligned with each other), and then the quick lock nut 300 may be rotated to move the locking bars 303 along the curved extension path of the slots 203 and 113 until the locking bars 303 are moved to the bottom ends of the slots 203 and 113. At this position, the locking bars 303 of the quick lock nut 300 are locked inside the slots 203 and 113, thereby fixing the modular connector assembly 100 to the end cover 200 of the base station antenna.
The quick lock nut 300 may be a plastic or polymer quick lock nut that may be formed by injection molding. The quick lock nut 300 may also be any other type of quick lock nut known to those skilled in the art.
Locating posts 204 for locating the modular connection assembly 100 may be provided on the end cover 200 of the base station antenna. Correspondingly, locating holes 114 for receiving the locating posts 204 may be provided in the support 110. When the modular connector assembly 100 is mounted on the end cover 200 of the base station antenna, the locating posts 204 may prevent the modular connector assembly 10 from rotating relative to the end cover 200. Moreover, the locating posts 204 may relieve the impact of the external force on the connectors 120, thereby protecting the connectors 120. In the embodiment shown in
A locating post is one embodiment of a protrusion for aligning and/or attaching the support to the end cover. The protrusion may be substantially cylindrical or may include substantially square, rectangular, or other polygonal shapes, or other generally prismatic protrusions. A locating hole is one embodiment of a channel configured to receive the locating post or protrusion. Substantially any channel may be used to receive the geometry of the protrusion, including holes and slots, each of which may be blind or pass through the underlying material and have a profile corresponding to the protrusion.
In a variant embodiment according to the present disclosure, each locating post or protrusion may include a non-return feature so that the locating post itself has a locking function. When the non-return feature of a locating post passes through a corresponding locating hole, the non-return feature can prevent the locating post from being withdrawn from the locating hole, thereby fixing the modular connector assembly to the end cover of the base station antenna. For example, the protrusion may be configured to comprise a post or stalk having a first diameter and a head disposed on an end of the post or stalk. The head may have a second diameter, and the second diameter may be larger than the first diameter. A lower surface of the head may serve as the non-return feature. For example, the first diameter of the stalk may be dimensioned to slip through or otherwise pass easily through a locating hole, while the second diameter of the head may be dimensioned to interfere with the third diameter of the locating hole and prevent, impede, or resist the insertion and/or removal of the protrusion. For example, the third diameter may be smaller than the second diameter.
In one embodiment, the head includes a substantially elastic resilient component. The head may be configured to compress, deform, and pass through a locating hole when the resilient component is deformed (for example, elastically deformed). After passing through the locating hole, the head may at least partially expand and return to its undeformed shape and resist withdrawal through the hole. For example, a lower surface of the head may be configured to flare out wider than an upper surface of the head so as to provide easier insertion into the locating hole in one direction while resisting withdrawal from the locating hole in a second and opposite direction.
As shown in
In the embodiments according to the present disclosure, the locating posts (for example, locating posts 204, 204′, and/or 1004) may be configured as an integral part of the end cover 200 or the support 1001. For example, the locating posts may be integrally formed with the end cover 200 or the support 1001 by injection molding.
The modular connector assembly according to the present disclosure may not require the use of metal fasteners such as screws, which not only reduces the number of parts that need to be used and shortens the time it takes to assemble and fix the connectors, but may also avoid or reduce “crosstalk” between the connectors which may be caused by metal fasteners, such as screws. In addition, it is not necessary to provide the connectors with a corresponding structure (for example, a flange) for the fasteners, advantageously aiding the miniaturization of the connectors.
Additionally, when the locating posts include non-return features, it may be possible to fix the modular connector assembly to the end cover of the base station antenna by the locating posts themselves without using the quick lock nut. This further reduces the number of parts required to fix the modular connector assembly and further reduces the time it takes to assemble and fix the connectors.
Although exemplary embodiments of this disclosure have been described, those skilled in the art should appreciate that many variations and modifications are possible in the exemplary embodiments without departing from the spirit and scope of the present disclosure. Accordingly, all such variations and modifications are intended to be included within the scope of this disclosure as defined in the claims.
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