CN111261980A

CN111261980A - Switch assembly and antenna device

Info

Publication number: CN111261980A
Application number: CN201811458325.9A
Authority: CN
Inventors: 段方清; 赵虎; 廖志强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-06-09
Anticipated expiration: 2038-11-30
Also published as: CN111261980B; WO2020108609A1

Abstract

The embodiment of the application discloses a switch assembly, which is used for switching different switch networks and comprises a cavity, a transmission assembly, a pull rod assembly and at least one group of PCB assemblies, wherein each PCB assembly comprises an upper PCB, a lower PCB and a middle PCB; the middle PCB is fixed in the cavity, the cavity comprises a metal part, the metal part is parallel to the middle PCB, and the metal part is grounded; the upper PCB and the lower PCB are fixed on the pull rod assembly along a direction perpendicular to the extension direction of the pull rod assembly, and the upper PCB and the lower PCB are distributed on two sides of the middle PCB and are parallel to the middle PCB; the lever assembly is connected to the transmission assembly, the upper PCB is coupled to the middle PCB and the lower PCB is coupled to the metal part when the lever assembly moves to a first position, and the lower PCB is coupled to the middle PCB and the upper PCB is coupled to the metal part when the lever assembly moves to a second position.

Description

Switch assembly and antenna device

Technical Field

The application relates to the technical field of communication equipment, and features relate to a switch assembly and antenna equipment.

Background

With the development of mobile communication technology, in order to adapt to different application scenarios, a base station antenna needs to support switching between a wide beam, a narrow beam, or a split beam. Antenna switching may be achieved by a radio frequency switch.

Electromechanical relay switches are a common class of radio frequency switches and are widely used due to their high power and absence of non-linear devices. In the prior art, an electromechanical relay switch switches between different switch networks by horizontally moving the relative position between a switching input/output port and a transmission line.

In the prior art, because different switch networks are horizontally arranged, certain length is required to be spaced between transmission lines, usually about 30 mm, in order to avoid radio frequency signal radiation interference. Resulting in a large rf switch size and increased installation difficulty.

Disclosure of Invention

The embodiment of the application provides a switch assembly and antenna equipment, which are used for switching different switch networks, can effectively reduce the size of the switch assembly and are convenient to install.

A first aspect of an embodiment of the present application provides a switch assembly, including a cavity, a transmission assembly, a pull rod assembly, and at least one set of PCB assemblies including an upper PCB, a lower PCB, and a middle PCB; the middle PCB is fixed in the cavity, the cavity comprises a metal part, the metal part is parallel to the middle PCB, and the metal part is grounded; the upper PCB and the lower PCB are fixed on the pull rod assembly along a direction vertical to the extension direction of the pull rod assembly, and the upper PCB and the lower PCB are distributed on two sides of the middle PCB and are parallel to the middle PCB; the pull rod assembly is connected with the transmission assembly, when the pull rod assembly moves to a first position, the upper PCB is coupled with the middle PCB, the lower PCB is coupled with the metal part, when the pull rod assembly moves to a second position, the lower PCB is coupled with the middle PCB, and the upper PCB is coupled with the metal part.

The switch component can realize the switching of different wave beam types of the antenna equipment through the switching among different switch networks so as to adapt to various application scenes. The switch assembly comprises a cavity, a transmission assembly, a pull rod assembly and at least one group of PCB assemblies, wherein each PCB assembly comprises an upper PCB, a lower PCB and a middle PCB. The cavity comprises a grounded metal part, the middle PCB is fixed in the cavity and is parallel to the metal part, the upper PCB and the lower PCB are fixed on the pull rod assembly along the direction perpendicular to the extension direction of the pull rod assembly, the upper PCB and the lower PCB are distributed on two sides of the middle PCB and are parallel to the middle PCB, the pull rod assembly is connected with the transmission assembly, when the pull rod assembly moves to a first position, the upper PCB is coupled with the middle PCB, the lower PCB is coupled with the metal part, when the pull rod assembly moves to a second position, the lower PCB is coupled with the middle PCB, and the upper PCB is coupled with the metal part.

Therefore, under the drive of the transmission assembly and the pull rod assembly, the switch assembly can switch different switch networks to realize the switching between different beams of the antenna, and in the switch assembly, the PCB and the metal part which are not communicated with the switch networks are both grounded, so that the radio frequency signal radiation interference caused to the switched-on switch networks can be avoided, the moving distance when the switch networks are switched can be smaller, the size of the switch assembly can be effectively reduced, and the installation is convenient.

In one possible embodiment of the first aspect, the metal part comprises a metal interlayer located between a first PCB assembly of the at least one set of PCB assemblies and a second PCB assembly of the at least one set of PCB assemblies, the metal interlayer being provided with a through hole through which the tie rod assembly extends.

When having multiunit PCB subassembly, the switch module that this application embodiment provided has set up the metal interlayer between the PCB subassembly, and when switch module switched to a operating position, the PCB that does not communicate can be with the coupling of metal interlayer ground connection like this, avoids the interference to the switch network of switch-on.

In a possible implementation manner of the first aspect, the pull rod assembly includes a pull rod and an elastic member, the elastic member is disposed on a surface of the pull rod, a PCB groove is disposed on a surface of the elastic member, an extending direction of the PCB groove is perpendicular to an extending direction of the pull rod, the PCB groove is used for fixing the upper PCB or the lower PCB, and the elastic member includes a rubber member, a plastic spring sheet or a metal spring sheet.

The switch module that this application embodiment provided, pull rod assembly include pull rod and elastic component, and the elastic component surface sets up PCB groove and is used for fixed PCB or this PCB down, because the elastic component can take place deformation, consequently can compensate the error, has improved the precision of coupling.

In a possible implementation manner of the first aspect, the pull rod assembly further includes a guide portion disposed on a surface of the pull rod, the guide portion is disposed at an end of the elastic member, a surface of the guide portion is provided with a guide groove, an extending direction of the guide groove is perpendicular to an extending direction of the pull rod, and an aperture of the guide groove along the extending direction of the pull rod is greater than or equal to an aperture of the PCB groove along the extending direction of the pull rod.

The upper and lower PCBs are provided with a relief groove corresponding to the guide portion, the relief groove being used to make the guide portion not contact with the upper and lower PCBs.

According to the switch component provided by the embodiment of the application, the guide part is arranged on the surface of the pull rod, so that the upper PCB and the lower PCB are convenient to assemble.

In a possible embodiment of the first aspect, the tie rod surface is provided with a first area, in which the resilient member is provided, and a second area for guiding the rotation of the upper PCB or the lower PCB into the first area.

The switch component that this application embodiment provided, the pull rod surface has set up the second region, is convenient for go up PCB and lower PCB card through the rotation and goes into the PCB groove on the elastic component surface of first region, has promoted switch component's practicality.

In a possible embodiment of the first aspect, the tie rod assembly includes a screw, a sealing ring, and a sealing ring seat, the screw penetrates through the sealing ring and the sealing ring seat, a groove hole is formed in a surface of the sealing ring seat along an extending direction of the PCB assembly, the upper PCB or the lower PCB is installed in the groove hole through the sealing ring, and the screw is used for fixing the sealing ring, the sealing ring seat, the upper PCB and the lower PCB on the transmission assembly.

The embodiment of the application provides another structure of a pull rod assembly, and the structural diversity of the switch assembly can be increased.

In a possible embodiment of the first aspect, the transmission assembly includes a rotation rod and a transmission conversion rod, the transmission conversion rod is provided with an inclined slot, an end of the pull rod assembly away from the cavity is provided with a through hole, the conversion rod penetrates through the through hole and the inclined slot, and the rotation rod is connected with the pull rod assembly through the inclined slot.

The embodiment of the application provides a possible structure of the transmission assembly, and the realizability of the structure of the switch assembly can be increased.

In one possible embodiment of the first aspect, the drawbar assembly is threadedly coupled with the drive assembly.

The embodiment of the application provides another possible structure of the transmission assembly, and the structural diversity of the switch assembly can be increased.

In one possible implementation of the first aspect, the switch assembly further comprises: and the power source is arranged outside the cavity and is connected with the transmission assembly, and the power source comprises a motor.

The switch assembly provided by the embodiment of the application can further comprise a power source, power of the transmission assembly is provided, and the realizability of the scheme is improved.

A second aspect of the embodiments of the present application provides an antenna apparatus, including a radiating element and the switch component provided in any one of the embodiments of the first aspect of the present application.

According to the technical scheme, the embodiment of the application has the following advantages:

the switch component provided by the embodiment of the application, the upper PCB and the lower PCB are fixed on the pull rod component, the upper PCB and the lower PCB can be driven to slide in the cavity along the direction perpendicular to the extending direction of the PCB component through the pull rod component, when the pull rod component moves to the first position, the upper PCB is coupled with the middle PCB to be communicated with the first switch network, when the pull rod component moves to the second position, the lower PCB is coupled with the middle PCB to be communicated with the second switch network, and switching of different switch networks can be achieved. When the pull rod assembly moves to the first position, the lower PCB is coupled and grounded with the metal part of the cavity, or when the pull rod assembly moves to the second position, the upper PCB is coupled and grounded with the metal part of the cavity, so that radio frequency signal radiation interference cannot be caused to a switched-on switch network, the moving distance of the switch assembly can be set within 3 millimeters when the switch network is switched, the moving distance is small, the size of the switch assembly can be effectively reduced, and the installation is convenient.

Drawings

FIG. 1 is a schematic view of a suspension stripline;

FIG. 2 is a schematic structural diagram of an embodiment of a switch assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of another embodiment of a switch assembly according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another embodiment of a switch assembly according to an embodiment of the present application;

FIG. 5 is a schematic structural view of an embodiment of a tie rod assembly according to the present disclosure;

FIG. 6 is a schematic structural view of another embodiment of a tie rod assembly according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of the overall structure of the switch assembly in the embodiment of the present application;

FIG. 8 is a schematic view of an explosion-proof connection of the switch assembly in the embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a switch assembly according to an embodiment of the present application;

fig. 10 is another overall structural view of the switch assembly in the embodiment of the present application;

FIG. 11 is a schematic cross-sectional view of a switch assembly according to an embodiment of the present application;

FIG. 12 is a schematic cross-sectional view of another embodiment of a switch assembly of the present application;

fig. 13 is a schematic structural diagram of an antenna apparatus in an embodiment of the present application.

Detailed Description

The embodiment of the application provides a switch assembly for switching between different transmission paths is realized, the size of the switch assembly can be reduced, and the installation difficulty is reduced.

The switching of the base station antenna between the various beams may be accomplished by switching different transmission lines of the network in the radio frequency switch. A suspended microstrip line is a commonly used microwave transmission line. Please refer to fig. 1, which is a schematic diagram of a suspension strip line.

The suspended strip line is a microwave transmission line composed of two ground layers and a conductor strip disposed between the ground layers. The ground layer 1 and the ground layer 2 are metal ground layers, and a conductor strip is arranged between the two ground layers. In the figure, d1 is the distance between the middle conductor strip and the upper ground layer, d2 is the distance between the middle conductor strip and the lower ground layer, and d1 is equal to d2 when the same material is filled between the middle conductor strip and the upper and lower ground layers.

Microstrip lines may be used as transmission structures in Printed Circuit Boards (PCBs). In the embodiment of the application, different switch networks can be formed by coupling a plurality of PCBs, so that the effect of the radio frequency switch on antenna beam switching is realized.

Referring to fig. 2, a schematic structural diagram of an embodiment of a switch assembly according to an embodiment of the present application is shown.

A switch assembly is characterized by comprising a cavity 201, a transmission assembly 202, a pull rod assembly 203 and at least one group of Printed Circuit Board (PCB) assemblies, wherein each PCB assembly comprises an upper PCB 2041, a lower PCB 2042 and a middle PCB 2043; the intermediate PCB2043 is secured within the cavity. The cavity includes a metal portion 2011, which is a portion of the cavity parallel to the middle PCB2043, and the metal portion may be grounded through a wire, thereby avoiding radio frequency signal radiation interference to the switch network. The bottom and top of the cavity shown in fig. 2 are metal parts 2011. The middle PCB2043 is parallel to the upper and lower surfaces of the cavity, and the distance between the middle PCB2043 and the upper surface of the cavity and the distance between the middle PCB2043 and the lower surface of the cavity are equal.

The upper PCB 2041 and the lower PCB 2042 can be fixed on the rod assembly, and respectively distributed on two sides of the middle PCB2043, and the upper PCB 2041 and the lower PCB 2042 are parallel to the middle PCB 2043. The distance between the upper PCB 2041 and the lower PCB 2042 is equal to the distance between the middle PCB2043 and the cavity bottom.

The transmission assembly is connected with the pull rod assembly, the transmission assembly can drive the pull rod assembly to move up and down, and the connection mode of the transmission assembly and the pull rod assembly is not limited here. Since the upper PCB 2041 and the lower PCB 2042 are both fixed to the drawbar assembly along a direction perpendicular to the extension direction of the drawbar assembly, the upper PCB 2041 and the lower PCB 2042 move up or down in the cavity along with the drawbar assembly. When the pull rod assembly moves to the lowest end or the highest end, two fixed states are formed, please refer to fig. 3, which is a schematic structural view of another embodiment of the switch assembly in the embodiment of the present application.

In a first state: the lever assembly moves to a first position, i.e., the lowermost end, and the upper PCB 2041 is coupled to the middle PCB 2043. At this time, the upper PCB 2041 and the middle PCB2043 are coupled to form a conductor strip of the first switch network, and the lower PCB 2042 is coupled to the metal part, i.e., the lower wall of the cavity, and is grounded, so that interference to the first switch network can be avoided;

in the second state, the lever assembly moves to the second position, i.e., the uppermost position, and the lower PCB 2042 is coupled to the middle PCB 2043. At this time, the lower PCB 2042 and the middle PCB2043 are coupled to form a conductor strip of the second switch network, and the upper PCB 2041 and the metal portion, i.e., the upper wall of the cavity, are coupled to ground, so that interference to the second switch network can be avoided.

Therefore, under the driving of the transmission assembly and the pull rod assembly, the switch assembly can switch different switch networks to realize the switching between different beams of the antenna, and in the switch assembly, the PCB and the metal part which are not communicated with the switch networks are grounded, so that the radio frequency signal radiation interference caused to the switched-on switch networks can be avoided, and therefore the moving distance when the switch networks are switched can be smaller, for example, within 3 millimeters, so that the size of the switch assembly can be effectively reduced, and the installation is convenient.

The switch module that this application embodiment provided, according to the polarization condition of the radiation unit of connecting, can set up multiunit PCB subassembly, for example the switch module that contains a set of PCB subassembly is applied to and connects single polarization radiation unit, and the switch module that contains two sets of PCB subassemblies can be applied to and connects dual polarization radiation unit. Therefore, the switch assembly provided by the embodiment of the present application may include multiple sets of PCB assemblies, and the number of PCB assemblies is not limited herein.

In the present embodiment, a switch assembly including two sets of PCB assemblies is described. Please refer to fig. 4, which is a schematic structural diagram of another embodiment of a switch assembly according to an embodiment of the present application.

The switch module includes two sets of PCB subassemblies, and first PCB subassembly includes: an upper PCB 2041, a lower PCB 2042, and a middle PCB 2043; the second PCB assembly includes: an upper PCB 2044, a lower PCB 2045, and a middle PCB 2046. The upper PCB 2041 and the upper PCB 2044 may be PCBs having the same circuit structure, and similarly, the lower PCB 2042 and the lower PCB 2045, and the middle PCB2043 and the middle PCB 2046 may be PCBs having the same circuit structure, respectively.

Metal portion 2011 includes a metal spacer layer 2012 that separates the cavity into two lumens, a first lumen 2013 and a second lumen 2014. Wherein the first set of PCB assemblies is disposed within the first cavity and the second set of PCB assemblies is disposed within the second cavity.

Similar to a switch assembly having a set of PCB assemblies, two fixed states will be established when the lever assembly is moved to the lowermost or uppermost end.

In a first state, the pull rod assembly moves to a first position, namely the lowest end, in the first inner cavity, the upper PCB 2041 is coupled with the middle PCB2043 to form a conductor strip of the first switch network, and the lower PCB 2042 is coupled with the metal interlayer, namely the lower wall of the first inner cavity, and grounded, so that interference on the first switch network can be avoided; in the second inner cavity, the upper PCB 2044 is coupled with the middle PCB 2046 to form a conductor strip of the first switch network, and the lower PCB 2045 is coupled with the metal part, i.e., the lower wall of the second inner cavity, and grounded, so that interference to the first switch network can be avoided.

In a second state, the pull rod assembly moves to a second position, namely the uppermost end, in the first inner cavity, the lower PCB 2042 is coupled with the middle PCB2043 to form a conductor strip of a second switch network, and the upper PCB 2041 is coupled with the metal part, namely the upper wall of the first inner cavity, and is grounded, so that interference on the second switch network can be avoided; in the second inner cavity, the lower PCB 2045 is coupled with the middle PCB 2046 to form a conductor strip of the second switch network, and the upper PCB 2044 is coupled with the metal part, i.e., the upper wall of the second inner cavity, and is grounded, so that interference to the second switch network can be avoided.

Therefore, under the drive of the transmission assembly and the pull rod assembly, the switch assembly can switch different switch networks by moving a small distance, meanwhile, radio frequency signal radiation interference on the switched-on switch network is avoided, and switching between different beams of the antenna is realized.

Because the switch subassembly passes through the pull rod subassembly and drives the PCB coupling and form different switch networks, consequently have higher requirement to the coupling precision of upper and lower direction, this application embodiment has adopted the transmission design that the size chain compensated the error, can satisfy the requirement of coupling precision. The tie rod assembly of the embodiments of the present application may have different structures, which are described below.

A first pull rod assembly.

Please refer to fig. 5, which is a schematic structural diagram of an embodiment of a tie rod assembly according to an embodiment of the present disclosure.

The pull rod assembly 203 is composed of a pull rod 2031 and an elastic member 2032. The elastic member 2032 is used for fixing the PCB and absorbing the tolerance of the link with the upper and lower dimensions by deformation, thereby meeting the requirement of the coupling dimension. Alternatively, the elastic member 2032 may be a rubber member, a plastic spring, or a metal spring. The following description will be given taking the elastic member 2032 as a rubber member.

Alternatively, the rubber member and the pull rod can be molded by two-material injection molding. The surface of the elastic part is provided with a PCB groove, the extending direction of the PCB groove is perpendicular to the extending direction of the pull rod, and the PCB groove is used for fixing the upper PCB or the lower PCB, so that when the upper PCB and the lower PCB are driven by the rubber part of the pull rod assembly to move up and down, the tolerance of a size link can be absorbed through the deformation of the rubber part, and the requirement of a coupling size is met.

Optionally, to facilitate hanging the PCB into the rubber, the pull rod assembly 203 may further include a guide portion 2033. The guide part is arranged at the end part of the elastic piece, the surface of the guide part is provided with a guide groove, and the extending direction of the guide groove is vertical to the extending direction of the pull rod.

The guide part forms a guide groove at the adjacent position of the side of the PCB groove formed by the rubber part, and the caliber of the guide groove along the extension direction of the pull rod is larger than or equal to the caliber of the PCB groove along the extension direction of the pull rod. Optionally, the caliber of the side of the guide groove far away from the PCB groove along the extension direction of the pull rod is slightly larger than the caliber of the PCB groove along the extension direction of the pull rod, and the caliber of the side of the guide groove near the PCB groove along the extension direction of the pull rod is the same as the caliber of the PCB groove along the extension direction of the pull rod. Like this, when pull rod assembly rotated, PCB hung the one side notch that the rubber spare was kept away from to the guide part earlier, because the guide way makes PCB groove along this pull rod extending direction's bore reduce gradually through certain inclination, like this, PCB can hang in the rubber spare notch under guide part's effect.

After continuing to rotate to the position, PCB and lower PCB are hung to the rubber spare, go up and can set up the groove of stepping down on PCB and the lower PCB, when rotatory completion, go up PCB and lower PCB's the groove of stepping down and correspond to the guide part, like this, draw the in-process of PCB motion at draw bar assembly, if the rubber spare takes place deformation, at this moment because the guide part corresponds the groove of stepping down at PCB, consequently can not lead to the fact the extrusion to PCB.

Optionally, the surface of the tie rod 2031 is provided with a first area where the elastic member is disposed and a second area 2034 for guiding the upper PCB or the lower PCB to rotate into the PCB groove of the surface of the elastic member of the first area. When the upper PCB or the lower PCB is assembled and fixed to the pull rod, the second area of the pull rod faces the extending direction of the upper PCB or the lower PCB, then the pull rod is rotated in the axial direction, so that the first area of the pull rod faces the extending direction of the upper PCB or the lower PCB, and at this time, the upper PCB or the lower PCB can be screwed into the PCB groove arranged on the surface of the elastic element in the first area. Optionally, the first region is provided with a guide portion located at a position between the rubber member and the second region.

Alternatively, the coefficient of friction of the guide portion 2033 is smaller than that of the rubber member. Optionally, the guide portion is made of plastic.

Optionally, the end of the pull rod 2031 is further provided with a through hole 2035, which has a penetrating direction perpendicular to the extending direction of the pull rod, and can be used for connecting with a transmission assembly.

The pull rod assembly provided by the embodiment of the application can fix the PCB at a preset position, and the elastic piece can absorb the tolerance of a size link through deformation, so that the requirement of a coupling size is met. In addition, the handle assembly may further include a guide portion so that the handle assembly is easy to install.

Second, a second pull rod assembly.

Please refer to fig. 6, which is a schematic structural diagram of another embodiment of the tie rod assembly in the embodiment of the present application.

The pull rod assembly includes a screw 2036, a seal ring seat 2037 and a seal ring 2038, the screw penetrates through the seal ring and the seal ring seat, a groove hole along the extending direction of the PCB assembly is provided on the surface of the seal ring seat, the upper PCB or the lower PCB is mounted in the groove hole through the seal ring, and the screw is used to fix the seal ring, the seal ring seat, the upper PCB and the lower PCB on the transmission assembly. Therefore, the sealing rings are arranged between the upper PCB or the lower PCB and the sealing ring seat, and the sealing rings can absorb the tolerance of a size link through deformation in the process that the pull rod assembly drives the upper PCB and the lower PCB to move, so that the requirement of coupling size precision is met. It will be appreciated that for ease of assembly, a plurality of gasket seats may be provided, for example as shown in figure 6, with a first gasket seat being provided between the upper PCB and the end cap of the screw and a second gasket seat being provided between the upper PCB and the lower PCB in a first set of PCB assemblies.

As can be seen from the embodiment corresponding to fig. 5 and the embodiment, the pull rod assembly may be connected to the transmission assembly through a screw thread, or may be connected to the transmission assembly through a through hole formed in the pull rod, and the connection form between the pull rod assembly and the transmission assembly is not limited herein.

The pull rod assembly that this application embodiment provided can fix PCB in predetermined position through screw, sealing washer seat and sealing washer, and the tolerance of size link can be absorbed through deformation to the sealing washer, satisfies the requirement of coupling size.

The switch module that this application embodiment provided, transmission assembly can have multiple structure, introduces respectively below:

firstly, the transmission assembly moves along the extension direction of the pull rod assembly.

Fig. 7 to 9 are a schematic overall structure diagram, an explosion-connected structure diagram and a schematic cross-sectional structure diagram of a switch assembly according to an embodiment of the present application.

According to the switch assembly provided by the embodiment of the application, the extending direction of the transmission assembly is the same as that of the pull rod assembly, and the transmission assembly moves along the extending direction of the pull rod assembly.

Optionally, the pull rod in the pull rod assembly is connected with the transmission rod of the transmission assembly through threads. The connection mode between the pull rod assembly and the transmission assembly is not limited herein.

Optionally, the switch assembly may further include a fixing member, the transmission assembly is directly connected to the lever assembly in the vertical direction and is connected to the cavity through the fixing member, and an end of the transmission assembly is defined inside the fixing member so as not to be separated from the cavity when the transmission assembly moves relative to the cavity.

Optionally, the power source may be an electric motor, and the transmission assembly moves in the vertical direction under the action of the power source to drive the pull rod assembly to move upward or downward, so as to switch the switch network.

Optionally, the cavity may further be provided with a plurality of coaxial cable interfaces, the coaxial cable interfaces may be disposed on the cavity in a welding manner, and the coaxial cable is connected to the switch network and the metal portion of the cavity, and is connected to the device outside the switch assembly through the coaxial cable interfaces.

And secondly, the transmission assembly moves perpendicular to the extension direction of the pull rod assembly.

Fig. 10 to 12 are a schematic overall structure diagram, a schematic longitudinal sectional structure diagram, and a schematic transverse sectional structure diagram of a switch assembly according to an embodiment of the present application.

The switch assembly provided by the embodiment of the present application, the transmission assembly includes a rotating rod 2021 and a transmission switching rod 2022.

The transmission conversion rod 2022 is provided with an inclined slot 2023, one end of the pull rod assembly far away from the cavity is provided with a through hole, and the conversion rod penetrates through the through hole and the inclined slot and is connected with the pull rod assembly.

The specific process of driving the pull rod assembly to move by the transmission assembly is as follows: the power source drives the transmission conversion rod 2022 to move in the horizontal direction perpendicular to the extending direction of the transmission assembly, i.e. in fig. 11, and the rotating rod penetrates through the inclined slot hole on the transmission conversion rod and the through hole of the pull rod, so that the rotating rod slides in the inclined slot hole, and the rotating rod moves in the extending direction of the pull rod, i.e. in the vertical direction in fig. 11, relative to the cavity, so that the pull rod moves in the extending direction of the pull rod under the driving of the rotating rod.

Optionally, the power source of the switch assembly may be a motor, and the transmission assembly moves under the action of the power source to drive the pull rod assembly to move in the direction perpendicular to the extending direction of the PCB, so as to switch the switch network.

The switch assembly provided by the embodiment of the application can be applied to a base station antenna or other various devices related to radio frequency signal switching. Taking a base station antenna as an example, please refer to fig. 13, which is a schematic structural diagram of an antenna apparatus in the embodiment of the present application.

The base station antenna provided by this embodiment includes a radiation unit, a switch assembly, and an antenna connector, and optionally, may further include a combiner, a filter, or an antenna cover.

The switch assembly comprises a switching device and a switch network, and the switch assembly is connected with the radiation unit. If the base station antenna comprises a filter or a combiner, the switch element may be connected to the antenna connection via the filter or the combiner. Wherein the filter can pass, block, separate or synthesize signals of certain frequencies. The combiner can realize the joint function of a plurality of filters, and filters with different center frequencies or different bandwidths are integrated together. In addition, the base station antenna may further include a radome, which is an outer shell of the base station antenna and may provide protection for internal components.

The switch component included in the base station antenna may be the switch component provided in any of the above embodiments, and details are not described here.

The base station antenna that this embodiment provided can switch different switch networks through switch module auto-change over device, realizes being applicable to the multiple wave beam of different scenes, because transmission is vertical switch among the switch module, can reduce base station antenna size, the installation of being convenient for.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A switch component is characterized by comprising a cavity, a transmission component, a pull rod component and at least one group of PCB components, wherein the PCB components comprise an upper PCB, a lower PCB and a middle PCB;

the middle PCB is fixed in the cavity, the cavity comprises a metal part, the metal part is parallel to the middle PCB, and the metal part is grounded;

the upper PCB and the lower PCB are fixed on the pull rod assembly along a direction perpendicular to the extension direction of the pull rod assembly, and the upper PCB and the lower PCB are distributed on two sides of the middle PCB and are parallel to the middle PCB;

the lever assembly is connected to the transmission assembly, the upper PCB is coupled to the middle PCB and the lower PCB is coupled to the metal part when the lever assembly moves to a first position, and the lower PCB is coupled to the middle PCB and the upper PCB is coupled to the metal part when the lever assembly moves to a second position.

2. The switch assembly of claim 1, wherein the metal portion includes a metal spacer layer between a first PCB assembly of the at least one set of PCB assemblies and a second PCB assembly of the at least one set of PCB assemblies, the metal spacer layer being provided with a through hole through which the tie bar assembly extends.

3. The switch assembly according to claim 1 or 2, wherein the pull rod assembly comprises a pull rod and an elastic member, the elastic member is disposed on a surface of the pull rod, a PCB groove is disposed on a surface of the elastic member, an extending direction of the PCB groove is perpendicular to an extending direction of the pull rod, the PCB groove is used for fixing the upper PCB or the lower PCB, and the elastic member comprises a rubber member, a plastic spring sheet or a metal spring sheet.

4. The switch assembly according to claim 3, wherein the pull rod assembly further comprises a guide portion disposed on a surface of the pull rod, the guide portion is disposed on an end of the elastic member, a surface of the guide portion is provided with a guide groove, an extending direction of the guide groove is perpendicular to an extending direction of the pull rod, and a diameter of the guide groove along the extending direction of the pull rod is greater than or equal to a diameter of the PCB groove along the extending direction of the pull rod;

the upper PCB and the lower PCB are provided with a yielding groove corresponding to the guide part, and the yielding groove is used for enabling the guide part not to be in contact with the upper PCB and the lower PCB.

5. The switch assembly of claim 3 or 4, wherein the surface of the pull rod is provided with a first area and a second area, the elastic member is provided in the first area, and the second area is used for abutting against the upper PCB or the lower PCB to rotate into the PCB groove.

6. The switch assembly according to claim 1 or 2, wherein the pull rod assembly comprises a screw, a sealing ring and a sealing ring seat, the screw penetrates through the sealing ring and the sealing ring seat, a groove hole is formed in the surface of the sealing ring seat along the extending direction of the PCB assembly, the upper PCB or the lower PCB is mounted in the groove hole through the sealing ring, and the screw is used for fixing the sealing ring, the sealing ring seat, the upper PCB and the lower PCB on the transmission assembly.

7. The switch assembly according to any one of claims 1 to 6, wherein the transmission assembly comprises a rotation lever and a transmission shift lever; the transmission conversion rod is provided with an inclination slotted hole, one end of the pull rod assembly, which is far away from the cavity, is provided with a through hole, and the conversion rod penetrates through the through hole and the inclination slotted hole; the dwang passes through the inclination slotted hole with pull rod assembly links to each other.

8. The switch assembly of any one of claims 1 to 6, wherein the pull rod assembly is threadably connected to the transmission assembly.

9. The switch assembly of any one of claims 1 to 7, further comprising: the power source is arranged outside the cavity and connected with the transmission assembly, and the power source comprises a motor.

10. An antenna device comprising a radiating element and a switch assembly according to any one of claims 1 to 9.