Antenna electrical tilt adjustment device, antenna and base station

Abstract

The present application provides an antenna electrical tilt adjustment device, an antenna, and a base station. The antenna electrical tilt adjustment device includes a main drive mechanism, which includes a main drive shaft and one or more main drive gears, each of which is fixedly arranged around the circumference of the main drive shaft; multiple switch mechanisms, each corresponding to a main drive gear and one or more output gears, each switch mechanism being used to control the connection or disconnection between the corresponding main drive gear and the corresponding one or more output gears; and multiple phase shifters, each of which is connected to a corresponding phase shifter, each of which is used to adjust the electrical tilt of the antenna. When the main drive mechanism rotates, the main drive mechanism drives the output gear connected to the corresponding main drive gear to rotate, thereby adjusting the position of the phase shifter connected to the output gear. The antenna electrical tilt adjustment device is compact, has high adjustment efficiency, and can achieve parallel control.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of antenna technology, and in particular to an antenna electrical tilt adjustment device, an antenna, and a base station. Background Art

[0002] Cell signal coverage in mobile communications is achieved by installing base station antennas at base stations and ensuring that their beams cover the planned area. Based on factors such as the cell's geographic characteristics and user distribution, the radiation direction of the base station antenna beams needs to be adjusted. This adjustment typically involves adjusting the vertical downtilt angle and the horizontal azimuth angle.

[0003] The adjustment of vertical downtilt angle and horizontal azimuth angle can be divided into two categories according to the implementation scheme. The first category is to adjust the physical position of the entire base station antenna through mechanical devices; the second category is that the physical position of the base station antenna remains unchanged, and the signal phase of each unit inside the antenna is changed by adjusting the phase shifter inside the antenna, thereby achieving a change in beam pointing. The first type of solution is generally implemented by designing a rotatable device on the mounting bracket of the base station antenna and designing an electrically controlled power output device inside the antenna. The second type of solution is generally implemented by designing a phase shifter connecting each unit inside the antenna and a controller that can control the phase of each output port of the phase shifter, that is, a mechanical electric downtilt device (MET) or a remote electric downtilt device (RET).

[0004] However, existing technical solutions have at least the following common drawbacks: 1. Remote electronic adjustment devices capable of independently controlling multiple phase shifters are bulky and costly; 2. Remote electronic adjustment devices can only adjust corresponding phase shifters one by one, i.e., achieve serial adjustment of phase shifters. This results in long test and adjustment times, low adjustment efficiency, and inability to achieve online switching of arbitrary phase shifters for parallel control. Summary of the Invention

[0005] In view of this, it is necessary to provide an antenna electrical tilt adjustment device, an antenna, and a base station that are small in size, have high adjustment efficiency, and can achieve parallel control.

[0006] To achieve the above objectives, in a first aspect, the present application provides an antenna electrical tilt adjustment device, comprising: a main drive mechanism, the main drive mechanism comprising a main drive shaft and one or more main drive gears, each of the main drive gears being fixedly arranged around the circumference of the main drive shaft, i.e., being non-rotatable relative to the main drive shaft; a plurality of switch mechanisms, each corresponding to a main drive gear and one or more output gears, each switch mechanism being used to control the connection or disconnection between the corresponding main drive gear and the corresponding one or more output gears; a plurality of phase shifters, each of the output gears being connected to a corresponding phase shifter, the phase shifters being used to adjust the electrical tilt of the antenna; when the main drive mechanism rotates, the main drive mechanism drives the output gear connected to the corresponding main drive gear to rotate, thereby adjusting the position of the phase shifter connected to the output gear. The circumference of the main drive shaft is a surface formed by a circle around the axis corresponding to the main drive shaft, and the surface can be a circular surface or other shapes, such as a hexagon. The circumference of the other shaft bodies in the present application is similar.

[0007] In the above solution, one or more main drive gears can be provided on a main drive shaft, and each main drive gear corresponds to one or more output gears. When the corresponding main drive gear and the output gear are connected by adjusting the switch mechanism, the rotation of one main drive shaft causes the output gear connected to the main drive gear provided on the main drive shaft to rotate together, thereby achieving the effect of simultaneously adjusting multiple phase shifters, avoiding the need to control only a single phase shifter each time, improving the adjustment efficiency, and realizing parallel control of multiple phase shifters.

[0008] In one possible design, each switching mechanism includes a bridge gear and a switching device. The switching device is connected to the bridge gear and is used to adjust the position of the bridge gear to control the connection or disconnection between the bridge gear and the corresponding main drive gear and one or more corresponding output gears. Therefore, by controlling the meshing of the bridge gear with the output gear, or the meshing of the bridge gear with the main drive gear, the connection or disconnection of the output gear and the main drive gear can be effectively controlled.

[0009] In one possible design, the bridge gear meshes with the corresponding main drive gear, and the switching device is used to adjust the position of the bridge gear so that it engages or disengages with the corresponding output gear, thereby controlling the connection or disconnection between the main drive gear corresponding to the bridge gear and the corresponding output gear. Therefore, the switching device can effectively control or adjust the position of the bridge gear so that it engages or disengages with the output gear.

[0010] In a possible design, the antenna electric tilt adjustment device further includes a shift mechanism, the shift mechanism including a first shift shaft and a shift gear; the shift gear is sleeved on the first shift shaft, the shift gear can slide along the axial direction of the first shift shaft and cannot rotate relative to the first shift shaft; the switching device includes an adjusting gear, an adjusting screw and an adjusting nut; the adjusting nut is sleeved on the adjusting screw and threadedly connected to the adjusting screw, the adjusting gear is fixed around the circumference of the adjusting screw, that is, it cannot rotate relative to the adjusting screw, the The bridge gear is rotatably connected to the adjustment nut via a first bridge shaft; wherein the axial directions of the first shift shaft, the adjustment screw, the first bridge shaft, and the output gear are all parallel to the axial direction of the main drive shaft; when the shift gear slides along the first shift shaft until it engages with the adjustment gear, and the shift gear rotates with the first shift shaft, the shift gear drives the adjustment gear to rotate, thereby driving the adjustment screw to rotate, driving the bridge gear to slide along the adjustment screw with the adjustment nut to adjust the position of the bridge gear. Therefore, by controlling the shift gear to slide along the first shift shaft, the position of the bridge gear is effectively controlled or adjusted, causing the bridge gear to engage or disengage with the output gear.

[0011] In one possible design, the antenna electrical tilt adjustment device further includes a first drive source connected to the first shift shaft for driving the first shift shaft to rotate. Therefore, the provision of the first drive source enables power output to effectively drive the first shift shaft to rotate.

[0012] In one possible design, the shift mechanism further includes a shift rack and a drive gear; the shift rack includes a sliding portion and a drive rack; the sliding portion is sleeved on the first shift shaft and can slide along the axial direction of the first shift shaft, and the shift gear is rotatably connected to the sliding portion; the extension direction of the drive rack is parallel to the axial direction of the main drive shaft, and the drive rack is meshed with the drive gear; when the drive gear rotates, the drive rack meshed with the drive gear drives the shift rack to slide, thereby driving the shift gear to slide along the first shift shaft. Therefore, due to the arrangement of the drive gear and the drive rack, the drive gear and the drive rack mesh with each other, so that the shift rack drives the shift gear to slide along the first shift shaft through the drive gear and the drive rack. This structure is simple and easy to implement, and because the transmission between the gear and the rack has high efficiency characteristics, it can effectively shorten the shifting time.

[0013] In one possible design, the main drive mechanism further includes an input gear fixedly disposed about the circumference of the main drive shaft, i.e., non-rotatable relative to the main drive shaft. When the shift gear slides along the first shift shaft until it engages with the input gear, and the shift gear rotates along with the first shift shaft, the shift gear drives the input gear to rotate, thereby driving the main drive gear to rotate, thereby driving the output gear connected to the corresponding main drive gear to rotate. Therefore, the provision of the input gear effectively prevents direct engagement of the shift gear with the corresponding main drive gear, thereby preventing interference.

[0014] In one possible design, the antenna electrical tilt adjustment device further includes a second drive source connected to the drive gear for controlling the shift rack to slide along the first shift shaft. Therefore, the provision of the second drive source enables power output to effectively control the shift rack to slide along the first shift shaft.

[0015] In one possible design, two switching mechanisms are stacked together, with the main drive shaft positioned between them. The corresponding bridge gears of the two switching devices mesh with the main drive gear. Therefore, by stacking the two switching mechanisms, independent control of multiple phase shifters or simultaneous multi-channel control can be achieved without taking up too much space.

[0016] In one possible design, the bridge gear meshes with the corresponding output gear, and the switching device is used to adjust the position of the bridge gear so that the bridge gear meshes with or disengages the corresponding main drive gear, thereby controlling the connection or disconnection between the main drive gear corresponding to the bridge gear and the corresponding output gear. Therefore, by controlling the meshing of the bridge gear with the main drive gear, the connection or disconnection of the output gear with the main drive gear is effectively controlled.

[0017] In one possible design, the switching device includes a fixed frame and a shift box, wherein the shift box is rotatably connected to the fixed frame via a second shift shaft; the bridge gear is disposed within the shift box and is rotatably connected to the shift box via a second bridge shaft; the output gear is sleeved on the second shift shaft and can rotate relative to the second shift shaft; one side of the bridge gear is engaged with the output gear, and the other side of the bridge gear is disposed corresponding to the main drive gear; wherein the axial directions of the second shift shaft and the second bridge shaft are both parallel to the axial direction of the main drive shaft; when the shift box rotates around the second shift shaft, the shift box drives the bridge gear to rotate to adjust the engagement or disengagement of the bridge gear with the corresponding main drive gear. Therefore, by setting the specific structure of the switching device, the position of the bridge gear can be effectively controlled or adjusted so that the bridge gear is engaged or disengaged with the main drive gear.

[0018] In one possible design, the switching device further includes a self-locking mechanism comprising a first elastic member and a self-locking block. Along a first direction perpendicular to the second shift shaft, the ends of the self-locking block can be elastically abutted against the fixed frame and the shift box, respectively, via the first elastic member. When the self-locking block is away from the shift box, the shift box can rotate; when the self-locking block abuts against the shift box, the shift box cannot rotate. Therefore, the provision of the self-locking block effectively ensures the positional accuracy of the bridge gear in either the engaged or disengaged state, and ensures that the gear does not disengage when subjected to force.

[0019] In one possible design, the switching device further includes a first actuating mechanism and a second actuating mechanism. The first actuating mechanism is connected to the self-locking block and is used to drive the self-locking block toward or away from the shift box in a first direction. The second actuating mechanism is connected to the shift box in a second direction perpendicular to the second shift shaft and is used to drive the shift box to rotate. The second direction is the rotation direction of the shift box, and the first direction is perpendicular to the second direction. Therefore, the arrangement of the first and second actuating mechanisms can effectively control the rotation of the shift box, thereby effectively controlling or adjusting the position of the bridge gear.

[0020] In a possible design, the switching device further includes a fixing plate and a second elastic member; along the second direction, two ends of the second elastic member elastically abut against the fixing plate and the shift box respectively.

[0021] In one possible design, the first and second actuating mechanisms are relays, memory metals, or solenoid valves. Therefore, by configuring the first and second actuating mechanisms, the rotation of the shift box can be effectively controlled, thereby effectively controlling or adjusting the position of the bridge gear.

[0022] In one possible design, the antenna electrical tilt adjustment device further includes a first drive source connected to the main drive shaft to drive the main drive shaft to rotate. Therefore, the provision of the first drive source effectively achieves power output, thereby controlling the main drive gear to drive the corresponding output gear to rotate.

[0023] In one possible design, when there are multiple main drive gears, the multiple main drive gears are spaced apart along the axial direction of the main drive shaft, and the multiple switch mechanisms are spaced apart along the axial direction of the main drive shaft corresponding to the positions of the main drive gears. Therefore, the multiple switch mechanisms can correspond to one or more main drive gears, and the positional arrangement relationship between the switch mechanisms and the main drive gears is not limited.

[0024] In one possible design, each of the output gears meshes with a first bevel gear, which is arranged in a direction perpendicular to the axial direction of the main drive shaft and is connected to the phase shifter; or each of the output gears meshes with an output rack, which is arranged in a direction perpendicular to the axial direction of the main drive shaft and is connected to the phase shifter; or each of the output gears meshes with a second bevel gear, which is connected to an output screw, both of which are arranged in a direction perpendicular to the axial direction of the main drive shaft, and an output nut is provided on the output screw, which is threadedly connected to the output nut, and the output nut is connected to the phase shifter. Therefore, the output gear can output torque to the corresponding phase shifter through different connection mechanisms, such as bevel gears, racks, screw nuts, etc., thereby controlling the position adjustment of the phase shifter.

[0025] In a second aspect, the present application further provides an antenna, comprising the antenna electrical tilt adjustment device described in any one of the designs of the first aspect.

[0026] In a third aspect, the present application also provides a base station, comprising the antenna described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of a specific implementation method of the second type of solution.

[0029] Figure 2 This is a functional block diagram of the antenna electrical tilt adjustment device in an embodiment of the present application.

[0030] Figure 3 Schematic diagram of the structure of the antenna electrical tilt adjustment device in an embodiment of the present application.

[0031] Figure 4 for Figure 3 The schematic diagram of the structure of the antenna electrical tilt adjustment device at another angle is shown.

[0032] Figure 5 for Figure 3 The figure shows a schematic diagram of the structure of the switch mechanism in the antenna electrical tilt adjustment device.

[0033] Figure 6 for Figure 5 A schematic structural diagram of the switch mechanism shown at another angle.

[0034] Figure 7 for Figure 5 Schematic diagram of the state when the bridge gear and output gear in the switch mechanism are engaged.

[0035] Figure 8 for Figure 5 Schematic diagram of the state when the bridge gear and the output gear in the switch mechanism are disconnected.

[0036] Figure 9 for Figure 3 The diagram shows the state when the shift gear and the adjustment gear in the antenna electrical tilt adjustment device are engaged.

[0037] Figure 10 for Figure 3 The diagram shows the state when the shift gear and the input gear in the antenna electric tilt adjustment device are engaged.

[0038] Figure 11 for Figure 3 The schematic diagram shown is a schematic diagram of an antenna electrical tilt adjustment device controlling a single-channel phase shifter through a switch mechanism.

[0039] Figure 12 for Figure 3 The schematic diagram shown is of an antenna electrical tilt adjustment device controlling a multi-path phase shifter through a switch mechanism.

[0040] 13A to 13D Schematic diagram of the switch mechanism of the antenna electrical tilt adjustment device in different states in an embodiment of the present application.

[0041] Figure 14A and Figure 14B This is a schematic diagram of the first application scenario of the antenna electrical tilt adjustment device for implementing electrical tilt adjustment in an embodiment of the present application.

[0042] Figure 15 This is a schematic diagram of a second application scenario in which the antenna electrical tilt adjustment device in an embodiment of the present application implements electrical tilt adjustment.

[0043] Figure 16 This is a schematic diagram of a third application scenario in which the antenna electrical tilt adjustment device in the embodiment of the present application implements electrical tilt adjustment.

[0044] Figure 17A and Figure 17B This is a schematic diagram of two switch mechanisms corresponding to one main driving gear in the antenna electrical tilt adjustment device in an embodiment of the present application.

[0045] Figure 18A and Figure 18B Schematic diagram of another structure of the antenna electrical tilt adjustment device in an embodiment of the present application.

[0046] Figure 19 This is a schematic diagram of the first torque output mode of the antenna electrical tilt adjustment device in an embodiment of the present application.

[0047] Figure 20 This is a schematic diagram of the second torque output mode of the antenna electrical tilt adjustment device in an embodiment of the present application.

[0048] Figure 21 This is a schematic diagram of the third torque output mode of the antenna electrical tilt adjustment device in an embodiment of the present application.

[0049] Figure 22 This is a schematic diagram of an embodiment of the present application in which the driving source of the antenna electrical tilt adjustment device is disposed in an active module.

[0050] Figure 23 Schematic diagram of another structure of the antenna electrical tilt adjustment device in an embodiment of the present application.

[0051] Figure 24 for Figure 23 A schematic diagram of the antenna electrical tilt adjustment device at another angle is shown.

[0052] Figure 25 for Figure 23 The diagram shows the state of the bridge gear and the main drive gear in the antenna electrical tilt adjustment device when they are engaged.

[0053] Figure 26 for Figure 23 The diagram shows the state when the bridge gear and the main drive gear in the antenna electrical tilt adjustment device are disconnected.

[0054] Figure 27 for Figure 23 The diagram shows a case where the antenna electrical tilt adjustment device is provided with multiple switch mechanisms.

[0055] Figure 28 for Figure 27 A schematic diagram of the antenna electrical tilt adjustment device at another angle is shown.

[0056] Description of main component symbols

[0057] Antenna electrical tilt adjustment device 100, 200 Phase shifters PS1-PS6 Driving source 11

[0058] First driving source 111 Second driving source 112 Shift mechanism 12 Shift rack 121

[0059] First shift shaft 123 Shift gear 125 Drive gear 126 Drive rack 127

[0060] Drive gear 128 Main drive mechanism 13, 23 Main drive shaft 131, 231

[0061] Input gear 133 Main drive gear 135, 233 Switch mechanism 15, 15a, 15b, 25

[0062] Bridge gear 150, 250 Switch bracket 151 Switching device 153, 251

[0063] Adjusting gear 1530 Adjusting screw 1531 Adjusting nut 1532 Clamping part 1535

[0064] First bevel gear 1536 Output rack 1537 Output screw 1538 Output nut 1539

[0065] Output gears 155, 155a, 258, fixed frame 252, shift box 253, self-locking mechanism 254

[0066] Self-locking block 2541 First elastic member 2542 First notch 253a Second notch 253b

[0067] Second shift shaft 255 First actuating mechanism 256 Second actuating mechanism 257

[0068] The second elastic member 259

[0069] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0070] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying 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 making creative efforts shall fall within the scope of protection of the present invention.

[0071] In the description of the present invention, it should be understood that the term "height" refers to the projected length in a direction perpendicular to a reference stratum. Terms such as "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0072] Currently, the commonly used solution for adjusting the antenna downtilt angle is to design a phase shifter connecting each unit in the antenna and a controller that can control the phase of each output port of the phase shifter, namely a mechanical electric downtilt device (MET) or a remote electric downtilt device (RET). For example, please refer to Figure 1 In one implementation, the antenna has several electrically adjustable phase shifter devices (i.e., RETs) inside. Beamforming control for different frequency bands is achieved by individually adjusting the corresponding RET devices. The solution installs a gear clutch device on each electrically adjustable control device to facilitate both electrical and manual control. Furthermore, when the adjustment mode is switched, the position sensor installed at the drive output end is not affected in its perception of changes in the phase shifter stroke (if it is affected, it will cause phase shifter stroke calibration errors). However, each phase shifter in the solution is equipped with an independent RET drive device, which makes the overall drive device larger and more expensive.

[0073] Furthermore, with the increasing number of mobile communication standards and frequency bands, acquiring site resources has become increasingly difficult, making site sharing (co-site, where network operators share the same site location) a key requirement for operators. In this scenario, to avoid visual pollution caused by installing too many antennas with different frequency bands atop base station towers and to avoid increasing the load-bearing capacity of base station towers, multi-frequency antennas (i.e., integrating multiple frequency bands into a single antenna) have become a key trend in base station antenna development. To enable multi-frequency antennas to have the aforementioned beam pointing adjustment functionality, adopting the aforementioned solution presents drawbacks such as excessive internal control devices and a significant increase in antenna size. This drawback is particularly pronounced for multi-frequency antennas integrated with remote radio units (RRUs), such as active antenna units (AAUs). Multi-frequency antennas are inherently larger than single-frequency antennas, and the integration of an RRU further increases the overall size, posing challenges to the environmental reliability of tower-mounted equipment (e.g., wind load performance). Secondly, to ensure stable broadband access for users, multi-beam antennas like AAUs require real-time adjustments of user-level beams based on user distribution. This requires rapid response from remote electronic control devices. For these technical reasons, miniaturization and rapid response of multi-drive MET or RET devices are fundamental to the successful application of these antennas.

[0074] At the same time, with the widespread application of AAUs, customized control requirements for their special usage scenarios have led to more diverse requirements for phase shifter control methods. In traditional antennas, a single phase shifter generally controls the beam direction of a frequency band array, and the beam generally consists of +45° and -45° polarized beams. In an AAU, there may be a single phase shifter with +45° and -45° polarized beams that need to be controlled independently; or multiple phase shifters with +45° polarized beams and -45° polarized beams that need to be controlled simultaneously. These different control methods have led to new requirements for electronic control, such as a larger number of controls and the ability to arrange phase shifter connections as needed.

[0075] Based on this, embodiments of the present application provide an antenna electrical tilt adjustment device, and further provide an antenna incorporating the antenna electrical tilt adjustment device and a base station employing the antenna. The antenna electrical tilt adjustment device comprises a main drive mechanism, multiple switch mechanisms, and multiple phase shifters. The main drive mechanism comprises a main drive shaft and one or more main drive gears. Each main drive gear is fixedly disposed around the circumference of the main drive shaft, i.e., it is non-rotatable relative to the main drive shaft. Each switch mechanism corresponds to a main drive gear and one or more output gears, and each switch mechanism is used to control the connection or disconnection between the corresponding main drive gear and the corresponding one or more output gears. Each output gear is connected to a corresponding phase shifter, which is used to adjust the antenna electrical tilt. When the main drive mechanism rotates, it drives the output gear connected to the corresponding main drive gear to rotate, thereby adjusting the position of the phase shifter connected to the output gear. In other words, the antenna electrical tilt adjustment device is used to selectively connect the main drive mechanism to one or more phase shifters via the corresponding switch mechanisms to adjust the position of the phase shifters, ultimately adjusting the antenna electrical tilt. The use of the antenna electrical tilt adjustment device and the corresponding antenna of the present application can improve the antenna adjustment efficiency and reduce the antenna size; the base station using the antenna can also have a smaller size or have more space to layout other equipment.

[0076] It should be noted that the circumferential surface of the main drive shaft mentioned above is the surface formed by the axis corresponding to the main drive shaft around one circle. This surface can be a circular surface or other shapes, such as a hexagon. The definition of the circumferential surface of the other multiple shaft bodies mentioned later in this application is similar and will not be repeated here.

[0077] In one possible design, each switching mechanism includes a bridge gear and a switching device; the switching device is connected to the bridge gear and is used to adjust the position of the bridge gear to control the connection or disconnection between the bridge gear and the corresponding main drive gear and the corresponding one or more output gears.

[0078] Based on the above design, there are two possible implementations. In one possible implementation, the bridge gear always maintains meshing with the corresponding main drive gear, but can be meshed or dismeshed with the corresponding output gear by adjusting the position of the switching device, that is, connected or disconnected. In another possible implementation, the bridge gear always maintains meshing with the corresponding output gear, but can be meshed or dismeshed with the corresponding main drive gear by adjusting the position of the switching device, that is, connected or disconnected.

[0079] The following is a detailed description of the first implementation method mentioned above, that is, the bridge gear is engaged with the corresponding main drive gear, and the switching device is used to adjust the position of the bridge gear so that the bridge gear is engaged or disconnected with the corresponding output gear, so as to control the connection or disconnection between the main drive gear corresponding to the bridge gear and the corresponding output gear.

[0080] Specifically, see Figure 2 , Figure 2 The figure shows the functional module diagram of the antenna electrical tilt adjustment device in the embodiment of the present application. The antenna electrical tilt adjustment device 100 includes a driving source 11, a main driving mechanism 13, a switching mechanism 15 and a phase shifter. In the embodiment of the present application, the number of the phase shifters is one or more. For example, Figure 2 There are six shown in FIG, namely phase shifters PS1-PS6.

[0081] In the embodiment of the present application, the driving source 11 is connected to the main driving mechanism 13 and the switching mechanism 15. The switching mechanism 15 is connected to the main driving mechanism 13. First, by switching or selecting each switching mechanism 15, the connection or disconnection of the corresponding phase shifter and each switching mechanism 15 is controlled. In this way, the phase shifter can be connected or disconnected with the main driving mechanism 13 through the corresponding switching mechanism 15. Then, the main driving mechanism 13 drives a phase shifter connected thereto or drives multiple phase shifters connected thereto at the same time, thereby adjusting the position of the phase shifter and finally adjusting the electrical tilt angle of the antenna. For example, Figure 2 As shown, if any one of the phase shifters PS1-PS6 (e.g., phase shifter PS1) is controlled to connect to the corresponding switch mechanism 15 by switching or selecting each switch mechanism 15, the main drive mechanism 13 can drive the connected phase shifter (e.g., phase shifter PS1) via the corresponding main drive gear on its main drive shaft. Similarly, if any multiple of the phase shifters PS1-PS6 (e.g., all phase shifters PS1-PS6) are controlled to connect to the corresponding switch mechanism 15 by switching or selecting each switch mechanism 15, the main drive mechanism 13 can simultaneously drive any multiple of the connected phase shifters via the corresponding main drive gear on its main drive shaft. That is, the antenna electrical tilt adjustment device 100 can adjust or control a single connected phase shifter or simultaneously adjust or control multiple connected phase shifters via the main drive mechanism 13.

[0082] Please also refer to Figure 3 and Figure 4 , Figure 3 Shown Figure 3 One of the specific embodiments of the antenna electrical tilt adjustment device 100. Figure 4 for Figure 3The schematic diagram of the antenna electrical tilt adjustment device 100 at another angle is shown. In an embodiment of the present application, the antenna electrical tilt adjustment device 100 further includes a shifting mechanism 12. The shifting mechanism 12 is transmission-connected to the main drive mechanism 13 or the switch mechanism 15. In this embodiment, the number of the switch mechanisms 15 is two, and each switch mechanism 15 corresponds to a phase shifter. Of course, in the embodiment of the present application, there is no restriction on the number of the switch mechanisms 15, the number of phase shifters, and the number of phase shifters corresponding to each switch mechanism 15, and they can be set according to specific needs. For example, one switch mechanism 15 can correspond to one phase shifter or multiple phase shifters. That is, one switch mechanism 15 is used in combination with one phase shifter or multiple phase shifters.

[0083] See also Figure 4 In the embodiment of the present application, the shift mechanism 12 includes a shift rack 121, a first shift shaft 123, and a shift gear 125. The shift rack 121 includes a sliding portion 126 and a drive rack 127. The sliding portion 126 is sleeved on the first shift shaft 123 and can slide along the axial direction of the first shift shaft 123. The shift gear 125 is sleeved on the first shift shaft 123. The shift gear 125 can slide along the axial direction of the first shift shaft 123 and cannot rotate relative to the first shift shaft 123. It can be understood that the first shift shaft 123 can be a shaft body with a polygonal or irregular circumference, which is adapted to the circumferential shape of the first shift shaft 123. The opening of the first shift shaft 123 through which the shift gear 125 is sleeved can also be a shape that matches the first shift shaft 123, but its aperture can be slightly larger than the first shift shaft 123 to achieve sleeve installation. In this way, the shift gear 125 can slide on the first shift shaft 123 but does not rotate relative to the first shift shaft 123 , that is, when the first shift shaft 123 rotates, the shift gear 125 also rotates.

[0084] The shift gear 125 is rotatably connected to the sliding portion 126. The drive rack 127 can cooperate with, for example, mesh with, a drive gear 128. Thus, when the drive gear 128 rotates, the drive gear 128, via the meshed drive rack 127, drives the shift rack 121 to slide, for example, along the axial direction of the first shift shaft 123, thereby driving the shift gear 125 to slide along the first shift shaft 123 to adjust the position of the shift gear 125.

[0085] It can be understood that in the embodiment of the present application, since the shift mechanism 12 is provided with a drive gear 128 and a drive rack 127, the drive gear 128 and the drive rack 127 are engaged with each other, so that the position of the shift gear 125 can be adjusted through the drive gear 128 and the drive rack 127. This structure is simple and easy to implement, and since the transmission between the gear and the rack has a high efficiency characteristic, the shifting time can be effectively shortened.

[0086] It will be understood that in the embodiment of the present application, the main drive mechanism 13 includes a main drive shaft 131, an input gear 133, and a main drive gear 135. The main drive shaft 131 is disposed corresponding to the first shift shaft 123. For example, the main drive shaft 131 is spaced apart and arranged parallel to the first shift shaft 123. The input gear 133 is disposed on the main drive shaft 131, for example, fixedly disposed around the circumference of the main drive shaft 131, i.e., it is non-rotatable relative to the main drive shaft 131.

[0087] In the embodiment of the present application, the number of the main drive gears 135 is the same as the number of the switch mechanisms 15. For example, one main drive gear 135 corresponds to one switch mechanism 15. The main drive gear 135 is disposed on the main drive shaft 131. The main drive gear 135 is fixedly disposed around the circumference of the main drive shaft 131 and is non-rotatable relative to the main drive shaft 131.

[0088] Please also refer to Figure 5 In the embodiment of the present application, the switch mechanism 15 includes a bridge gear 150 and a switching device 153 150. The switch mechanism 15 can be disposed in a switch bracket 151. The switching device 153 is connected to the bridge gear 150 and is used to adjust the position of the bridge gear 150 to control the connection or disconnection between the bridge gear 150 and the corresponding main drive gear 135 and the corresponding one or more output gears 155.

[0089] In one embodiment, each switch mechanism 15 corresponds to a main drive gear 135. The switching device 153 includes an adjusting gear 1530, an adjusting screw 1531 and an adjusting nut 1532. The adjusting gear 1530 is fixedly arranged around the circumference of the adjusting screw 1531 and cannot rotate relative to the adjusting screw 1531. The adjusting nut 1532 is arranged, for example, sleeved on the adjusting screw 1531 and threadedly connected to the adjusting screw 1531. One end of the adjusting nut 1532 is provided with a generally U-shaped clamping portion 1535 for clamping the bridge gear 150. The bridge gear 150 can rotate relative to the adjusting nut 1532. For example, the bridge gear 150 can be arranged on the clamping portion 1535 via a first bridge shaft (not shown in the figure) and can rotate around the first bridge shaft. Thus, when the adjusting nut 1532 slides along the adjusting screw 1531 , for example, along the axial direction of the adjusting screw 1531 , the adjusting nut 1532 also drives the bridge gear 150 to slide, thereby adjusting the position of the bridge gear 150 .

[0090] Please also refer to Figure 6 One side of the bridge gear 150 is always engaged with the main drive gear 135 on the main drive shaft 131, and the other side can be engaged or disconnected with the corresponding output gear 155 by changing its axial position. Figure 7 When the axle gear 150 meshes with the output gear 155, the output gear 155 is connected to the phase shifter because one side of the axle gear 150 is always meshed with the main drive gear 135. Therefore, the phase shifter is connected to the main drive gear 135, enabling the main drive mechanism 13 to control the phase shifter, such as adjusting the phase shifter.

[0091] Please also refer to Figure 8 When the axle gear 150 is disconnected from the output gear 155, the phase shifter is disconnected from the main drive gear 135, i.e., the phase shifter is no longer connected. In other words, in this embodiment of the present application, the switching device 153 is used to adjust the position of the axle gear 150, causing it to engage or disengage with the corresponding output gear 155, thereby controlling the connection or disconnection between the main drive gear 135 and the corresponding output gear 155, thereby achieving on-off regulation.

[0092] In the embodiment of the present application, the axial directions of the first shift shaft 123 , the adjusting screw 1531 , the first bridge shaft, and the output gear 155 are all parallel to the axial direction of the main drive shaft 131 .

[0093] It is understood that in the embodiment of the present application, there are two drive sources 11. That is, the antenna electrical tilt adjustment device 100 includes a first drive source 111 and a second drive source 112. The first drive source 111 is connected to the first shift shaft 123 to drive the first shift shaft 123 to rotate.

[0094] The second driving source 112 is connected to the driving gear 113 to control the shift rack 121 to slide along the first shift shaft 123 .

[0095] It is understood that in the embodiment of the present application, the first drive source 111 and the second drive source 112 are both motors. The motors may be DC motors, AC motors, or asynchronous motors, and are not specifically limited herein. Of course, in the embodiment of the present application, the first drive source 111 and the second drive source 112 may also be other types of drive sources, and the types of the first drive source 111 and the second drive source 112 are not limited herein.

[0096] Obviously, in the first implementation described above, by providing the main drive shaft 131, one or more main drive gears 135 are provided on the main drive shaft 131. Thus, the first drive source 111 can transmit power to the main drive shaft 131 and the main drive gears 135 via the first shift shaft 123 and the shift gear 125, thereby causing all the main drive gears 135 provided on the main drive shaft 131 to drive the single output gear 155 or multiple output gears 155 connected thereto to rotate simultaneously, thereby achieving simultaneous adjustment of the single phase shifter or multiple phase shifters connected to the output gears 155.

[0097] It is understood that in the embodiment of the present application, the first drive source 111 indirectly drives the main drive shaft 131 and the main drive gear 135 to rotate. In other embodiments, the method of driving the main drive shaft 131 and the main drive gear 135 to rotate is not limited. For example, the main drive shaft 131 can be directly connected to a drive source, so that the drive source directly drives the main drive shaft 131 and the main drive gear 135 to rotate.

[0098] Please also refer to Figure 9, is a schematic diagram of the antenna electrical tilt adjustment device 100 implementing switch adjustment. When the second drive source 112 drives the shift rack 121 and the shift gear 125, causing the shift gear 125 to engage with the torque input interface (i.e., the adjustment gear 1530) on the switch mechanism 15, the torque of the first drive source 111 can be transmitted to the adjustment gear 1530 via the first shift shaft 123 and the shift gear 125. In this way, the adjustment gear 1530 drives the adjustment screw 1531 to rotate, causing the adjustment nut 1532 to move axially along the adjustment screw 1531 and drive the bridge gear 150 to move axially. Since one side of the bridge gear 150 is always engaged with the main drive gear 135 on the main drive shaft 131, the other side can achieve engagement or disengagement with the output gear 155 by changing its axial position.

[0099] Please also refer to Figure 10 , is a schematic diagram illustrating load adjustment achieved by the antenna electrical tilt adjustment device 100. Specifically, after one or more switch mechanisms 15 requiring adjustment have completed adjustment or shifting, for example, when the switch mechanism 15 connects the corresponding phase shifter, connecting it to the main drive gear 135 via the output gear 155 and the bridge gear 150, the second drive source 112 can continue to move the shift rack 121 and the shift gear 125, causing the shift gear 125 to engage the input gear 133 on the main drive shaft 131. In this manner, the first drive source 111 can output power to the main drive shaft 131 and the main drive gear 135 via the first shift shaft 123, the shift gear 125, and the input gear 133, for example, controlling the rotation of the main drive gear 135, thereby driving the output gear 155 to rotate via the bridge gear 150, thereby adjusting the connected phase shifter.

[0100] It can be understood that in the embodiment of the present application, the input gear 133 is used to effectively prevent interference caused by direct engagement between the shift gear 125 and the corresponding main drive gear 135 .

[0101] It can be understood that in the embodiment of the present application, the antenna electrical tilt adjustment device 100 can realize the individual control of any phase shifter or the parallel control of any multiple phase shifters through the multiple switch mechanisms 15 .

[0102] In the first case, please also refer to Figure 11 , Figure 11The antenna electrical tilt adjustment device 100 controls a single phase shifter through the switch mechanism 15. Specifically, in the first case, the antenna electrical tilt adjustment device 100 is provided with two switch mechanisms 15, and each switch mechanism 15 corresponds to one phase shifter.

[0103] In the first scenario, it is assumed that the axle gear 150 in the left switch mechanism 15 is engaged with the output gear 155, and the output gear 155 is connected to the phase shifter. In this way, the output gear 155 is connected to the main drive gear 135 via the axle gear 150, thereby connecting the left phase shifter through the switch mechanism 15. In the right switch mechanism 15, the axle gear 150 is disconnected from the output gear 155, thereby disconnecting the right phase shifter via the right switch mechanism 15. In the first scenario, the first drive source 111 can adjust the left phase shifter via the first shift shaft 123, the shift gear 125, the input gear 133, the main drive shaft 131, the main drive gear 135, the axle gear 150, and the output gear 155, thereby controlling a single-path phase shifter (see path P1).

[0104] In the second case, please also refer to Figure 12 , Figure 12 The antenna electrical tilt adjustment device 100 controls multiple phase shifters through the switch mechanism 15. Specifically, in the second case, the antenna electrical tilt adjustment device 100 is provided with two switch mechanisms 15, and each switch mechanism 15 corresponds to one phase shifter.

[0105] In the second case, the two phase shifters are arranged in parallel, and it is assumed that both the left and right switch mechanisms 15 are engaged with the output gear 155 via corresponding bridge gears 150, that is, the two phase shifters on the left and right sides are connected through the corresponding switch mechanisms 15. In the second case, as shown in Figure 13, the position of the shift rack 121 in the shift mechanism 12 can be adjusted by the second drive source 112 to drive the shift gears 125 on the first shift shaft 123 to slide. When one of the shift gears 125, such as the left shift gear 125, is engaged with the input gear 133, the first drive source 111 can adjust the left phase shifter via the first shift shaft 123, the left shift gear 125, the input gear 133, the main drive shaft 131, the left main drive gear 135, the left bridge gear 150, and the left output gear 155 (see path P2). At the same time, the first driving source 111 adjusts the phase shifter on the right side (see path P3) through the first shift shaft 123, the shift gear 125 on the left, the input gear 133, the main drive shaft 131, the main drive gear 135 on the right side, the right bridge gear 150 (not shown) and the right output gear 155.

[0106] As described above, in the second scenario, the antenna electrical tilt adjustment device 100 can control two phase shifters via the main drive mechanism 13 and the switch mechanism 15. Of course, it will be appreciated that in this embodiment of the present application, there is no limitation on the number of switch mechanisms 15 and phase shifters. For example, there may be multiple switch mechanisms 15, and the multiple switch mechanisms 15 may share a single main drive mechanism 13.

[0107] It is understandable that Figures 2 to 12 As shown, in the above embodiment, each switch mechanism 15 corresponds to one phase shifter. Of course, in the embodiment of the present application, there is no limitation on the number of the switch mechanisms 15 and phase shifters. For example, each switch mechanism 15 may also correspond to two or more phase shifters.

[0108] For details, please refer to 13A to 13D , showing a case where one switch mechanism 15a corresponds to two phase shifters. In this case, the switch mechanism 15a has the same structure as the switch mechanism 15 described in the previous embodiment, differing in that it corresponds to two output gears 155a. Each output gear 155a is connected to a corresponding phase shifter. In this case, the connection between the carrier gear 150 and the output gears 155a is controlled to control the connection between the corresponding phase shifter and the main drive gear 135.

[0109] For example, see also Figure 13AIn the first case, the carrier gear 150 of the switch mechanism 15a is in an unloaded state. This unloaded state means that the carrier gear 150 is not engaged with any output gear 155a. In this unloaded state, the phase shifters corresponding to the switch mechanism 15a, namely the left and right phase shifters, are both disconnected, and the first drive source 111 does not drive the two phase shifters connected to the switch mechanism 15a.

[0110] It can be understood that when the bridge gear 150 of the switch mechanism 15a is connected to a certain output gear 155a, the phase shifter corresponding to the output gear 155a is in a connected state, and the phase shifter corresponding to the other output gear 155a is in a disconnected state. The first driving source 111 can drive the switch mechanism 15a to control one of the connected phase shifters.

[0111] For example, see also Figure 13B In the second case, the axle gear 150 of the switch mechanism 15a engages only with the right output gear 155a and is disconnected from the left output gear 155a. In this case, the main drive gear 135 is connected to the right output gear 155a via the axle gear 150 and is disconnected from the left output gear 155a. In this case, only the right phase shifter is connected to the main drive gear 135 via the right output gear 155a, and the first drive source 111 can only drive the connected right phase shifter controlled by the switch mechanism 15a.

[0112] Please also refer to Figure 13C In the third case, the carrier gear 150 of the switch mechanism 15a engages only with the left output gear 155a and is disconnected from the right output gear 155a. In this case, the main drive gear 135 is connected to the left output gear 155a via the carrier gear 150 and is disconnected from the right output gear 155a. In this case, only the left phase shifter is connected to the main drive gear 135 via the left output gear 155a, and the first drive source 111 can only drive the connected left phase shifter controlled by the switch mechanism 15a.

[0113] It will be appreciated that in this embodiment of the present application, when the bridge gear 150 of the switch mechanism 15a is positioned between the two output gears 155a, thereby simultaneously connecting the two output gears 155a, both phase shifters corresponding to the switch mechanism 15a are in a connected state. Thus, the first drive source 111 can simultaneously drive the two connected phase shifters controlled by the switch mechanism 15a.

[0114] For example, see also Figure 13DIn the fourth scenario, the bridge gear 150 of the switch mechanism 15a moves between the two output gears 155a, meshing with both output gears 155a simultaneously. In this scenario, the main drive gear 135 is connected to both the left and right phase shifters via the bridge gear 150. The first drive source 111 can simultaneously drive the two connected phase shifters controlled by the switch mechanism 15a, effectively placing both phase shifters in their output state.

[0115] Please also refer to Figure 14A and Figure 14B , which is a schematic diagram of a first application scenario of the antenna electrical tilt adjustment device 100 for achieving electrical tilt adjustment. In this scenario, the antenna electrical tilt adjustment device 100 is provided with a plurality of switch mechanisms 15a, and each switch mechanism 15a corresponds to two phase shifters.

[0116] In the described scenario, Figure 14A The schematic diagram of the shifting process implemented by the antenna electrical tilt adjustment device 100 is shown. The second drive source 112 first drives the shift mechanism 12 to sequentially adjust the state of each switch mechanism 15a, thereby adjusting the connection state between the phase shifter corresponding to each switch mechanism 15a and the main drive mechanism 13. For example, in the described scenario, the power input by the second drive source 112 causes the shift mechanism 12 to move, thereby causing only the bridge gear 150 of the first switch mechanism 15a on the left to engage with the output gear 155a on its right. The remaining switch mechanisms 15a are all in the disconnected state, that is, none of the phase shifters in the remaining switch mechanisms 15a are connected to the corresponding main drive mechanism 13.

[0117] Next, please also refer to Figure 14B , a schematic diagram illustrating the angle setting process of the antenna electrical tilt adjustment device 100. The second drive source 112 continues to drive the shift mechanism 12, causing the shift gear 125 of the shift mechanism 12 to mesh with the input gear 133 of the main drive mechanism 13. The first drive source 111 then outputs torque through the meshed shift gear 125 and input gear 133 to control the right phase shifter in the first switch mechanism 15.

[0118] Please also refer to Figure 15 , which is a schematic diagram of a second application scenario of the antenna electrical tilt adjustment device 100 for achieving electrical tilt adjustment. In the scenario, the antenna electrical tilt adjustment device 100 is provided with a plurality of switch mechanisms 15a, and each switch mechanism 15a corresponds to two phase shifters.

[0119] In this scenario, the second drive source 112 first drives the shift mechanism 12 to sequentially adjust the state of each switch mechanism 15a, thereby adjusting the connection between the phase shifter corresponding to each switch mechanism 15a and the main drive mechanism 13. For example, in this scenario, the power input from the second drive source 112 causes the shift mechanism 12 to move, causing the carrier gear 150 of the first switch mechanism 15a on the left to engage with its left and right output gears 155a. The remaining switch mechanisms 15a are all disconnected, meaning that none of the phase shifters in these remaining switch mechanisms 15a are connected to the corresponding main drive mechanism 13.

[0120] Then, the second driving source 112 continues to drive the shift mechanism 12 to move, so that the shift gear 125 of the shift mechanism 12 meshes with the input gear 133 of the main driving mechanism 13. In this way, the first driving source 111 outputs torque through the meshed shift gear 125 and input gear 133 to control the two phase shifters in the first switching mechanism 15a. In other words, Figure 16 The main purpose is to realize the application scenario of controlling multiple channels corresponding to a single switch mechanism 15a, for example, two phase shifters at the same time.

[0121] Please also refer to Figure 16 , which is a schematic diagram of a third application scenario of the antenna electrical tilt adjustment device 100 for achieving electrical tilt adjustment. In the scenario, the antenna electrical tilt adjustment device 100 is provided with a plurality of switch mechanisms 15a, and each switch mechanism 15a corresponds to two phase shifters.

[0122] In this scenario, the second drive source 112 first drives the shift mechanism 12 to sequentially adjust the state of each switch mechanism 15a, thereby adjusting the connection between the phase shifter corresponding to each switch mechanism 15a and the main drive mechanism 13. For example, in this scenario, the power input from the second drive source 112 causes the shift mechanism 12 to move, causing the carrier gear 150 of each switch mechanism 15a to engage with its output gear 155a, for example, the left output gear. The right phase shifter corresponding to each switch mechanism 15a is disconnected.

[0123] Next, the second drive source 112 continues to drive the shift mechanism 12 to move, so that the shift gear 125 of the shift mechanism 12 engages with the input gear 133 of the main drive mechanism 13. In this way, the first drive source 111 then outputs torque through the meshed shift gear 125 and input gear 133 to achieve control of one of the phase shifters in each switching mechanism 15a. In other words, Figure 17 primarily illustrates an application scenario in which simultaneous control of one phase shifter corresponding to different switching mechanisms 15a can be achieved. In this application scenario, simultaneous polarization adjustment of different phase shifters can be achieved. For example, simultaneous +45° polarization movement or -45° polarization movement of the four phase shifters in the figure can be achieved.

[0124] It will be appreciated that in the present embodiment, there is no specific limitation on the number and positional relationship between the switch mechanisms 15, 15a and the main drive gears 135 in the main drive mechanism 13. For example, when there are multiple main drive gears 135, the multiple main drive gears 135 may be spaced apart along the axial direction of the main drive shaft 131, and the switch mechanisms 15, 15a may be spaced apart along the axial direction of the main drive shaft 131 corresponding to the positions of the main drive gears 135.

[0125] Please also refer to Figure 17A and Figure 17B , is a schematic diagram of the positional relationship between two switch mechanisms 15b and one main drive gear 135. In this example, the two switch mechanisms 15b are stacked and share the same main drive mechanism 13, thereby effectively saving space. Specifically, in the embodiment of the present application, the two switch mechanisms 15b are stacked up and down, and the main drive shaft 131 of the main drive mechanism 13 is arranged between the two switch mechanisms 15b and respectively engages with the bridge gear 150 in the switch mechanism 15b. By driving the bridge gear 150 to move along the axial position, it is engaged with or disconnected from the corresponding output gear 155, so that the corresponding output gear 155 is connected to or disconnected from the main drive gear 135 of the main drive mechanism 13 through the corresponding bridge gear 150.

[0126] Please refer again Figure 17A and Figure 17B In the embodiment of the present application, the switch mechanism 15b corresponds to one phase shifter. Of course, in other embodiments, there is no limit on the number of phase shifters corresponding to the switch mechanism 15b. For example, please refer to Figure 18A and Figure 18B In another case, each of the switch mechanisms 15b corresponds to two phase shifters. In this case, the structure and working principle of each of the switch mechanisms 15b corresponding to two phase shifters are the same as those of Figure 13AThe structure and working principle of each of the switch mechanisms 15a shown are similar and will not be described in detail here.

[0127] like Figure 18A and Figure 18B As shown, four switch mechanisms 15b are provided between the first driving source 111 and the second driving source 112, and the four switch mechanisms 15b are stacked in pairs in the corresponding switch bracket 151. Each switch mechanism 15b corresponds to two phase shifters. Therefore, by providing four switch mechanisms 15b between the first driving source 111 and the second driving source 112, eight phase shifters can be provided. Similarly, four switch mechanisms 15b are also provided on the right side of the second driving source 112, which also correspond to eight phase shifters. Figure 18A and Figure 18B In the solution shown, multiple phase shifters, such as eight phase shifters or more phase shifters, can be independently controlled or multi-channel controlled simultaneously.

[0128] It is understood that in the embodiment of the present application, there is no limitation on the connection method between the output gear 155 and the phase shifter, that is, there is no limitation on the method of outputting torque by the output gear 155. For example, the output gear 155 can output torque to the corresponding phase shifter through a connection mechanism such as a bevel gear, a rack, a screw and a nut.

[0129] For example, in the first case, Figure 19 The figure shows a case where the output gear 155a outputs torque via the first bevel gear 1536. In this first case, the output gear 155a meshes with the first bevel gear 1536. The first bevel gear 1536 is arranged perpendicular to the axial direction of the main drive shaft 131 and is connected to the phase shifter. In this way, the output gear 155a can directly output torque via the first bevel gear 1536, thereby using torque to control the phase shifter position.

[0130] In the second case, please also refer to Figure 20 , showing the output gear 155a outputting torque via the output rack 1537. In this second embodiment, the output gear 155a meshes with the output rack 1537. The output rack 1537 is arranged perpendicular to the axial direction of the main drive shaft 131 and is connected to the phase shifter. In this manner, the output gear 155a outputs push and pull forces via the output rack 1537, thereby controlling the phase shifter position using linear motion.

[0131] In the third case, please also refer to Figure 21, showing the situation where the output gear 155a outputs torque through the output screw 1538 and the output nut 1539. In the third case, the output gear 155a is meshed with a second bevel gear (not shown). The second bevel gear is connected to an output screw 1538. The output screw 1538 and the second bevel gear are both arranged in a direction perpendicular to the axial direction of the main drive shaft 131. In addition, the output screw 1538 is provided with, for example, a corresponding output nut 1539 is sleeved thereon. The output nut 1539 is threadedly connected to the output screw 1538 and is connected to the phase shifter. In this way, the output gear 155a can achieve push-pull force output through the output screw 1538 and the output nut 1539, and the phase shifter position is controlled using linear motion.

[0132] It is understood that in the embodiments described above, the first driving source 111 and the second driving source 112 are shown as being separately arranged. Of course, in the embodiments of the present application, the positions and arrangements of the driving sources, such as the first driving source 111 and the second driving source 112, are not limited. For example, please refer to Figure 22 In another embodiment, the first drive source 111 and the second drive source 112 can be connected by means of a gear or other mechanism, and the first drive source 111 and the second drive source 112 can be placed in the same active module 114 to achieve centralized control of the active module 114. This allows for easy repair or direct replacement of the active module 114 if it becomes damaged, ensuring the long-term reliability of the antenna.

[0133] It will be understood that in the aforementioned embodiment, the bridge gear 151 of the antenna electrical tilt adjustment device 100 is primarily shown as being engaged with the corresponding main drive gear 135, and the switching device 153 is used to adjust the position of the bridge gear 151 so that the bridge gear 151 engages or disengages with the corresponding output gear 155, thereby controlling the connection or disconnection between the main drive gear 135 corresponding to the bridge gear 151 and the corresponding output gear 155. Of course, in other embodiments, other methods may be used to control the connection or disconnection between the bridge gear 151 and the corresponding main drive gear 135 and one or more corresponding output gears 155. The second implementation method described above will be described in detail below.

[0134] Please also refer to Figure 23 and Figure 24 , which shows another specific embodiment of the antenna electrical tilt adjustment device in the embodiment of the present application. In the embodiment, the antenna electrical tilt adjustment device 200 includes a main driving mechanism 23 and a switch mechanism 25.

[0135] It can be understood that in the embodiment of the present application, the difference between the antenna electrical tilt adjustment device 200 and the antenna electrical tilt adjustment device 100 in the previous embodiment is that the structure of the main driving mechanism 23 is different from the structure of the main driving mechanism 13 in the above embodiment.

[0136] For details, please refer to Figure 24 In this embodiment, the main drive mechanism 23 is directly connected to the switch mechanism 25. The main drive mechanism 23 includes a main drive shaft 231 and a main drive gear 233. Obviously, the difference between the main drive mechanism 23 and the main drive mechanism 13 is that the main drive mechanism 23 does not include an input gear. The main drive shaft 231 is arranged above the switch mechanism 25 and is arranged along a first direction, such as the Y-axis direction. The main drive shaft 231 can be connected to the first drive source. The main drive gear 233 is arranged on, for example, sleeved on, the main drive shaft 231, and the two cannot rotate relative to each other.

[0137] It can be understood that in the embodiment of the present application, the antenna electrical tilt adjustment device 200 is different from the antenna electrical tilt adjustment device 100 in the previous embodiment in that the structure of the switch mechanism 25 is different from the structure of the switch mechanism 15 in the above embodiment.

[0138] Specifically, in the embodiment of the present application, the switch mechanism 25 includes a bridge gear 250 and a switching device 251. The switching device 251 includes a fixing frame 252, a shift box 253, a self-locking mechanism 254, a first action mechanism 256 and a second action mechanism 257.

[0139] In the embodiment of the present application, the fixed frame 252 is used to accommodate the shift box 253. The shift box 253 is rotatably connected to the fixed frame 252 via the second shift shaft 255. The bridge gear 250 and the output gear 258 are both disposed in the shift box 253. Specifically, the bridge gear 250 is disposed in the shift box 253 and is rotatably connected to the shift box 253 via a second bridge shaft (not shown). The output gear 258 is disposed on, for example, the second shift shaft 255 and can rotate relative to the second shift shaft 255. One side of the bridge gear 250 is always engaged with the output gear 258. The other side of the bridge gear 250 is disposed corresponding to the main drive gear 233.

[0140] In the embodiment of the present application, the axial directions of the second shift shaft 255 and the second axle shaft are both parallel to the axial direction of the main drive shaft 231. When the shift box 253 rotates around the second shift shaft 255, the shift box 253 drives the axle gear 250 to rotate, thereby adjusting the meshing or disengagement of the axle gear 250 with the corresponding main drive gear 233.

[0141] The self-locking mechanism 254 is used to self-lock the position of the shift box 253 when the bridge gear 250 moves to the engaged or disengaged state, so as to ensure its position accuracy and the gear does not disengage when subjected to force in the engaged or disengaged state. The self-locking mechanism 254 includes a self-locking block 2541 and a first elastic member 2542. In particular, along the second direction perpendicular to the second shift shaft 255 (for example, the X-axis direction), the two ends of the self-locking block 2541 can be elastically abutted against the fixed frame 252 and the shift box 253 respectively through the first elastic member 2542. When the self-locking block 2541 is away from the shift box 253, the shift box 253 can rotate. When the self-locking block 2541 abuts against the shift box 253, the shift box 253 cannot rotate.

[0142] Specifically, one end of the self-locking block 2541 is connected to the first action mechanism 256, and the other end is provided with a corresponding locking portion 2543. The locking portion 2543 is used to lock the first position on the side of the shift box 253 when the bridge gear 250 is engaged with the main drive gear 233, for example, the first notch 253a of the shift box 253 facing the self-locking block 2541 (see Figure 25 The locking portion 2541 is also used to lock the shift box 253 at a second position on one side of the shift box 253 when the axle gear 250 is disconnected from the main drive gear 233, for example, the shift box 253 is facing the second notch 253b on the side of the self-locking block 2541 (see FIG. Figure 25 and Figure 26 In this way, when the bridge gear 250 moves to the engaged or disengaged state, the self-locking mechanism 254 can be used to self-lock, thereby ensuring its positional accuracy in the engaged or disengaged state and preventing the gear from disengaging when subjected to force. In this embodiment, the height of the second notch 253b is higher than the height of the first notch 253a.

[0143] The first elastic member 2542 can be a leaf spring or other elastic element, which is not limited here. The first elastic member 2542 is disposed within the self-locking block 2541 and is connected to the first actuating mechanism 256 via the self-locking block 2541. The two ends of the first elastic member 2542 are respectively connected to the two ends of the self-locking block 2541. When the first actuating mechanism 256 is activated, for example, by pulling the first actuating mechanism 256 to the left, the self-locking block 2541 slides to the left to disengage from the shift box 253.

[0144] The first action mechanism 256 is connected to the self-locking block 2541 to generate a force in the second direction. Specifically, the first action mechanism 256 is used to drive the self-locking block 2541 to move closer to or away from the shift box 253 in the second direction. The second action mechanism 257 is connected to the shift box 253 along a third direction (for example, the Z-axis direction) to generate a force in the third direction to control the rotation of the shift box 253, so that the bridge gear 250 provided in the shift box 253 rotates, that is, to control the position of the bridge gear 250, so that the bridge gear 250 is engaged or disengaged with the main drive gear 233 on the main drive shaft 231. Obviously, the third direction is the rotation direction of the shift box 253. The third direction is perpendicular to the first direction and the second direction.

[0145] In the embodiment of the present application, the first actuating mechanism 256 and the second actuating mechanism 257 can be relays, memory metals and other elements that can generate linear push-pull forces. The specific types and structures of the first actuating mechanism 256 and the second actuating mechanism 257 are not limited here.

[0146] It can be understood that in the embodiment of the present application, the switching device 251 also includes a fixed plate (not shown) and a second elastic member 259. The second elastic member 259 can also be a spring or other elastic element, which is not limited here. Along the third direction, the two ends of the second elastic member 259 elastically abut against the fixed plate and the shift box 253 respectively. When the second action mechanism 257 is acted on, for example, the second action mechanism 257 is pulled upward, so that the shift box 253 rotates along the second shift shaft 255, and then the bridge gear 250 is engaged with the main drive gear 233, the second elastic member 259 is in a compressed state.

[0147] Below is Figure 25 and Figure 26 Taking the antenna electrical tilt adjustment device 200 as an example, the working principle of selecting the output state of the switch mechanism 25 is described in detail. Figure 25 FIG. 2 shows a state in which the carrier gear 250 is meshed with the main drive gear 233 . Figure 26 FIG. 2 shows a state where the carrier gear 250 is disconnected from the main drive gear 233 .

[0148] In this embodiment of the present application, the axle gear 250 and the output gear 258 are always in meshing engagement, and the axle gear shaft (not shown) is fixed to the shift box 253. The shift box 253 is rotatable about the second shift shaft 255. For example, when the shift box 253 rotates clockwise, the axle gear 250 can mesh with the main drive gear 233. When the shift box 253 rotates counterclockwise, the axle gear 250 can disengage from the main drive gear 233.

[0149] The first action mechanism 256 is connected to the self-locking block 2541. When shifting, the first action mechanism 256 is in a working state to generate a pulling force to the left (see Figure 24 ), so that the self-locking block 2541 slides to the left to disengage from the shift box 253. The second action mechanism 257 is connected to the shift box 253 and can generate an upward pulling force as shown in the figure (see FIG. Figure 24 ), so that the shift box 253 rotates around the second shift shaft 255, so that the axle gear 250 is engaged with the main drive gear 233, and then the output gear 258 is connected to the main drive gear 233 through the axle gear 250. Then, the first action mechanism 256 is in a non-working state. At this time, the self-locking block 2541 slides to the right under the action of the first elastic member 2542 to cooperate with the shift box 253, for example, to engage with the first notch 253a of the shift box 253, so as to lock the shift box 253 and prevent the shift box 253 from rotating around the second shift shaft 255 (see Figure 25 ).

[0150] When the first action mechanism 256 is in a working state and the second action mechanism 257 is in a non-working state, the shift box 253 rotates counterclockwise under the action of the second elastic member 259. At this time, the bridge gear 250 is disconnected from the main drive gear 233, that is, the output gear 258 is disconnected from the main drive gear 233 through the bridge gear 250. Then, the first action mechanism 256 is in a non-working state. Similarly, the self-locking block 2541 slides to the right under the action of the first elastic member 2542 to cooperate with the shift box 253. For example, the self-locking block 2541 is engaged with the second notch 253b of the shift box 253 to lock the shift box 253 and prevent the shift box 253 from rotating along the second shift shaft 255 (see Figure 26 ), thereby completing the selection of the output state of the switch mechanism 25.

[0151] Understandably, Figures 23 to 26The described embodiment only shows a scenario where a single switch mechanism 25 corresponds to a single phase shifter. Of course, the antenna electrical tilt adjustment device 200 can also be provided with multiple switch mechanisms 25 to achieve multi-phase shifter output. For example, please refer to Figure 27 and Figure 28 When implementing multiple switch mechanisms 25 (e.g., the five switch mechanisms 25 shown in the figure) and a multi-path phase shifter layout, the multiple switch mechanisms 25 can be arranged in parallel and can share a single main drive shaft 231 (i.e., main drive mechanism 23). Accordingly, the main drive shaft 231 of the main drive mechanism 23 is provided with multiple main drive gears 233. The number of main drive gears 233 corresponds to the number of switch mechanisms 25. This allows for multi-path transmission output.

[0152] It can be understood that in the embodiment of the present application, the arrangement of the multiple switch mechanisms 25 is not limited. They can be arranged in sequence, for example, on the same side of the main drive shaft 231, or staggered on both sides of the main drive shaft 231.

[0153] It will be appreciated that in this embodiment of the present application, the output state of each switch mechanism 25 is independent, meaning that the output state of each switch mechanism 25 can be controlled independently. When single- or multi-channel output is desired, the respective switch mechanisms 25 are first used to control the connection or disconnection between the respective phase shifters and the corresponding switch mechanisms 25. Next, the first drive source is used to input the corresponding power, which is transmitted to the corresponding main drive shaft 231 and main drive gear 233. The main drive gear 233 then outputs the torque to the activated phase shifter.

[0154] It is understood that in the embodiment of the present application, similar to the antenna electrical tilt adjustment device 100, the antenna electrical tilt adjustment device 200 is not limited to the type of its output force, for example, it can realize direct torque output, rack push-pull force output or nut push-pull force output, etc. Its specific structure and working principle can be referred to. Figures 19 to 21 , I will not go into details here.

[0155] It will be appreciated that in the second embodiment described above, the main drive shaft 231 is provided with one or more main drive gears 233. The main drive shaft 231 is connected to a first drive source. In this way, the first drive source can directly transmit power to the main drive shaft 231 and the main drive gears 233, thereby causing all main drive gears 233 provided on the main drive shaft 231 to simultaneously rotate the single output gear 258 or multiple output gears 258 connected thereto, thereby achieving simultaneous adjustment of the single phase shifter or multiple phase shifters connected to the output gears 258.

[0156] It is understood that in the embodiment of the present application, the first driving source directly drives the main driving shaft 231 and the main driving gear 233 to rotate. In other embodiments, the method of driving the main driving shaft 231 and the main driving gear 233 to rotate is not limited.

[0157] It will be appreciated that, as described above, the antenna electrical tilt adjustment devices in the embodiments of the present application, such as antenna electrical tilt adjustment devices 100 and 200, can not only adjust a single phase shifter, but can also achieve synchronous adjustment of multiple or all phase shifters. This allows simultaneous adjustment of all beams during antenna testing, significantly reducing adjustment time and improving production testing efficiency. Furthermore, during the adjustment of multiple phase shifters, each switching mechanism can share a single main drive mechanism, enabling a single main drive mechanism to control the movement of multiple phase shifters. Because the embodiments of the present application utilize only a single main drive mechanism to adjust the antenna electrical tilt, the volume and weight of the control mechanism within the antenna can be reduced, effectively controlling the cost and size of the antenna. Furthermore, the embodiments of the present application utilize the spatial distribution of the switching mechanism, output gear, and phase shifters along the circumference of the main drive shaft, further reducing the size of the antenna electrical tilt adjustment device 100, thereby reducing the size and weight of the antenna and conserving space.

[0158] It can be understood that in the embodiment of the present application, when the antenna is used online, its control can be switched from the normal single-channel phase shifter adjustment to the adjustment method of multiple phase shifters in parallel such as 4T4R / 8T8R (i.e. 4 receive and 4 transmit or 8 receive and 8 transmit), so that the antenna does not need to be changed, and only the corresponding RRU needs to be replaced to upgrade to the beam control method required by the next generation communication standard.

[0159] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent replacements of the technical solutions of the present invention may be made without departing from the spirit and scope of the technical solutions of the present invention. Those skilled in the art may also make other changes within the spirit of the present invention and apply them to the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made in accordance with the spirit of the present invention should all be included in the scope of protection claimed by the present invention.

Claims

1. An antenna electrical tilt adjustment device, characterized in that: include: A main drive mechanism, the main drive mechanism comprising a main drive shaft and one or more main drive gears, each of the main drive gears being fixedly disposed around the circumference of the main drive shaft; a plurality of switch mechanisms, each corresponding to a main drive gear and one or more output gears, each switch mechanism being configured to control the connection or disconnection between the corresponding main drive gear and the corresponding one or more output gears; wherein each switch mechanism comprises a bridge gear and a switching device, the switching device being connected to the bridge gear and configured to adjust the position of the bridge gear to control the connection or disconnection between the bridge gear and the corresponding main drive gear and the corresponding one or more output gears; A plurality of phase shifters, each of the output gears is connected to a corresponding phase shifter, and the phase shifter is used to adjust the electrical tilt angle of the antenna; When the main driving mechanism rotates, the main driving mechanism drives the output gear connected to the corresponding main driving gear to rotate, so as to adjust the position of the phase shifter connected to the output gear.

2. The antenna electrical tilt adjustment device according to claim 1, wherein: The bridge gear is engaged with the corresponding main drive gear, and the switching device is used to adjust the position of the bridge gear so that the bridge gear is engaged or disconnected with the corresponding output gear, so as to control the connection or disconnection between the main drive gear corresponding to the bridge gear and the corresponding output gear.

3. The antenna electrical tilt adjustment device according to claim 2, wherein: The antenna electric tilt adjustment device further includes a shift mechanism, the shift mechanism including a first shift shaft and a shift gear; the shift gear is sleeved on the first shift shaft, the shift gear can slide along the axial direction of the first shift shaft and cannot rotate relative to the first shift shaft; The switching device includes an adjusting gear, an adjusting screw and an adjusting nut; the adjusting nut is sleeved on the adjusting screw and threadedly connected to the adjusting screw, the adjusting gear is fixedly arranged around the circumference of the adjusting screw, and the bridge gear and the adjusting nut are rotatably connected via a first bridge shaft; The axial directions of the first shift shaft, the adjusting screw, the first bridge shaft and the output gear are all parallel to the axial direction of the main drive shaft; When the shift gear slides along the first shift shaft to engage with the adjusting gear, and the shift gear rotates with the first shift shaft, the shift gear drives the adjusting gear to rotate to drive the adjusting screw to rotate, and drives the bridge gear to slide along the adjusting screw with the adjusting nut to adjust the position of the bridge gear.

4. The antenna electrical tilt adjustment device according to claim 3, wherein: The antenna electrical tilt adjustment device further includes a first driving source connected to the first shift shaft for driving the first shift shaft to rotate.

5. The antenna electrical tilt adjustment device according to claim 3 or 4, characterized in that: The shift mechanism further includes a shift rack and a drive gear; the shift rack includes a sliding portion and a drive rack; the sliding portion is sleeved on the first shift shaft and can slide along the axial direction of the first shift shaft, and the shift gear is rotatably connected to the sliding portion; the extension direction of the drive rack is parallel to the axial direction of the main drive shaft, and the drive rack is meshed with the drive gear; When the driving gear rotates, the driving rack meshing with the driving gear drives the shift rack to slide, thereby driving the shift gear to slide along the first shift shaft.

6. The antenna electrical tilt adjustment device according to claim 3 or 4, characterized in that: The main drive mechanism further includes an input gear, which is fixedly arranged around the circumference of the main drive shaft; When the shift gear slides along the first shift shaft to engage with the input gear, and the shift gear rotates along with the first shift shaft, the shift gear drives the input gear to rotate to drive the main drive gear to rotate, and drives the output gear connected to the corresponding main drive gear to rotate.

7. The antenna electrical tilt adjustment device according to claim 5, wherein: The antenna electrical tilt adjustment device further includes a second driving source connected to the driving gear for controlling the shift rack to slide along the first shift shaft.

8. The antenna electrical tilt adjustment device according to any one of claims 2 to 4, characterized in that: There are two switch mechanisms, which are stacked together. The main drive shaft is arranged between the two switch mechanisms, and the bridge gears corresponding to the two switching devices are both engaged with the main drive gear.

9. The antenna electrical tilt adjustment device according to claim 1, wherein: The bridge gear is engaged with the corresponding output gear, and the switching device is used to adjust the position of the bridge gear so that the bridge gear is engaged with or disconnected from the corresponding main drive gear, so as to control the connection or disconnection between the main drive gear corresponding to the bridge gear and the corresponding output gear.

10. The antenna electrical tilt adjustment device according to claim 9, wherein: The switching device includes a fixed frame and a shift box, wherein the shift box is rotatably connected to the fixed frame via a second shift shaft; the bridge gear is disposed in the shift box and is rotatably connected to the shift box via the second bridge shaft; the output gear is sleeved on the second shift shaft and can rotate relative to the second shift shaft; one side of the bridge gear is engaged with the output gear, and the other side of the bridge gear is disposed corresponding to the main drive gear; Wherein, the axial directions of the second shift shaft and the second bridge shaft are parallel to the axial direction of the main drive shaft; When the shift box rotates around the second shift shaft, the shift box drives the bridge gear to rotate, so as to adjust the engagement or disengagement of the bridge gear with the corresponding main drive gear.

11. The antenna electrical tilt adjustment device according to claim 10, wherein: The switching device further includes a self-locking mechanism, which includes a first elastic member and a self-locking block; along a first direction perpendicular to the second shift shaft, two ends of the self-locking block can be elastically abutted against the fixing frame and the shift box respectively through the first elastic member; When the self-locking block is away from the shift box, the shift box can rotate; when the self-locking block is against the shift box, the shift box cannot rotate.

12. The antenna electrical tilt adjustment device according to claim 11, wherein: The switching device further includes a first actuating mechanism and a second actuating mechanism, wherein the first actuating mechanism is connected to the self-locking block and is used to drive the self-locking block toward or away from the shift box in the first direction; the second actuating mechanism is connected to the shift box in a second direction perpendicular to the second shift shaft and is used to drive the shift box to rotate; The second direction is the rotation direction of the shift box, and the first direction is perpendicular to the second direction.

13. The antenna electrical tilt adjustment device according to claim 12, wherein: The switching device further includes a fixing plate and a second elastic member; along the second direction, two ends of the second elastic member elastically abut against the fixing plate and the shift box respectively.

14. The antenna electrical tilt adjustment device according to claim 12, wherein: The first action mechanism and the second action mechanism are relays, memory metals or solenoid valves.

15. The antenna electrical tilt adjustment device according to claim 9, wherein: The antenna electrical tilt adjustment device further includes a first driving source, which is connected to the main driving shaft to drive the main driving shaft to rotate.

16. The antenna electrical tilt adjustment device according to any one of claims 1 to 4 and 9 to 15, characterized in that: When there are multiple main drive gears, the multiple main drive gears are spaced apart along the axial direction of the main drive shaft, and the multiple switch mechanisms are spaced apart along the axial direction of the main drive shaft corresponding to the positions of the main drive gears.

17. The antenna electrical tilt adjustment device according to any one of claims 1 to 4 and 9 to 15, wherein: Each of the output gears is engaged with a first bevel gear, the first bevel gear is arranged in a direction perpendicular to the axial direction of the main drive shaft and is connected to the phase shifter; or Each of the output gears is engaged with an output rack, the output rack being arranged in a direction perpendicular to the axial direction of the main drive shaft and connected to the phase shifter; or Each of the output gears is engaged with a second bevel gear, and the second bevel gear is connected to an output screw. The output screw and the second bevel gear are both arranged in a direction perpendicular to the axial direction of the main drive shaft. An output nut is provided on the output screw, and the output screw and the output nut are connected by threads, and the output nut is connected to the phase shifter.

18. An antenna, characterized in that: The invention comprises the antenna electrical tilt adjustment device as described in any one of claims 1 to 17.

19. A base station, characterized in that: Comprising the antenna of claim 18.

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