Antenna phase adjusting device and antenna equipment
By adopting a combined structure of a drive shaft and a shift module in the antenna phase adjustment device, the problems of complex structure and low reliability of the existing device are solved, and the antenna performance and cost reduction are improved.
Patent Information
- Application Number
- CN202510654306.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2045-05-21
AI Technical Summary
The existing antenna phase adjustment device has a complex structure, resulting in large antenna size, low reliability and high maintenance costs, making it difficult to meet the high requirements of communication base stations for antenna performance.
Using an antenna phase adjustment device including at least two drive shafts and a shift module, phase adjustment is achieved through the coordination of the moving structure and the rotating structure, simplifying the structure and improving reliability.
The antenna structure is simplified, the device reliability is improved, and the cost is reduced, and the communication base station has high requirements for antenna performance.
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Figure CN120222015A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication technologies, and in particular, to an antenna phase adjustment device and an antenna device. Background Art
[0002] With the rapid development of mobile communication technologies, the performance and functions of communication base station antennas are continuously optimized to meet the growing communication demands. In the prior art, in order to achieve multi-band signal transmission and beam adjustment of base station antennas, complex phase adjustment devices are usually adopted. These devices adjust the phase of the antenna through means such as gear transmission and motor drive, so as to achieve the adjustment of the azimuth angle of the beam.
[0003] However, the structure of the phase adjustment device in the prior art is complex and includes multiple components, resulting in a relatively large volume of the antenna, which is not conducive to the compact layout and aesthetics of the base station antenna. Moreover, the complex structure increases the fault points of the device, reduces the reliability, and increases the maintenance cost. Summary of the Invention
[0004] This application aims to at least solve one of the technical problems existing in the prior art, and provides an antenna phase adjustment device and an antenna device, which can simplify the structure, improve the reliability and reduce the cost, so as to meet the high requirements of communication base stations for antenna performance.
[0005] To achieve the above object, an embodiment of this application provides an antenna phase adjustment device, including: at least two drive shafts and a shift module, where the shift module includes a moving structure and a rotating structure. Among them, the moving structure is in transmission cooperation with the at least two drive shafts and is used to selectively drive the phase shifter slide corresponding to any one of the drive shafts to adjust the phase;
[0006] Among them, the rotating structure is rotatably connected to the moving structure, and the rotating structure is used to rotate through different transmission positions, and at different transmission positions, drive the moving structure to be in transmission cooperation with one of the at least two drive shafts.
[0007] In some embodiments, the rotating structure includes a shift component and at least two rotating components. The shift component and the at least two rotating components are both rotatably connected to the moving structure, and each of the transmission positions, each of the rotating components, and each of the drive shafts corresponds one by one;
[0008] The shift component is used to be in transmission cooperation with the corresponding rotating component at any one of the transmission positions to drive the rotating component to rotate to a position in transmission cooperation with the corresponding drive shaft; and is also used to drive the rotating component to rotate away from the position during the process of leaving this transmission position, so that the rotating component is disengaged from the corresponding drive shaft, and the shift component is disengaged from the corresponding rotating component after leaving this transmission position.
[0009] In some embodiments, at least two of the drive shafts are distributed around the rotation center line of the shift member and are parallel to the rotation center line of the shift member; the rotation center line of the shift member is parallel to the moving direction of the moving structure;
[0010] Each of the rotating members is coaxially arranged with the corresponding drive shaft and is rotatably arranged on the moving structure around the axis of the corresponding drive shaft.
[0011] In some embodiments, each drive shaft is provided with a first mating structure; the shift member is provided with a first transmission structure; each rotating member is provided with a second mating structure and a second transmission structure;
[0012] The first transmission structure is used to be in transmission cooperation with the second transmission structure of the rotating member corresponding to this transmission position at any transmission position, so as to drive the rotating member to rotate from the non-mating position to the mating position in transmission cooperation with the corresponding drive shaft; the second mating structure of the rotating member located at this mating position is in transmission cooperation with the first mating structure of the corresponding drive shaft;
[0013] The shift member is further used to drive the rotating member corresponding to this transmission position to rotate from the mating position to the non-mating position during the process of leaving this transmission position, so that the second mating structure is disengaged from the first mating structure; and after the shift member leaves this transmission position, the first transmission structure is disengaged from the second transmission structure of the corresponding rotating member.
[0014] In some embodiments, the rotating member is annular and is arranged around the corresponding drive shaft;
[0015] The second mating structure is at least one convex portion formed on the inner peripheral surface of the rotating member;
[0016] The first mating structure is a concave channel structure formed on the outer periphery of the drive shaft, and the concave channel structure is configured such that when the rotating member is in the mating position, the concave channel structure is in limit cooperation with each convex portion in the moving direction of the moving structure; when the rotating member is in the non-mating position, the concave channel structure is disengaged from each convex portion.
[0017] In some embodiments, the recessed channel structure includes at least one first recessed channel extending along the moving direction of the moving structure, and at least one group of second recessed channel groups. Each of the first recessed channels and each of the second recessed channel groups are arranged alternately along the circumferential direction of the driving shaft; each group of the second recessed channel groups includes a plurality of second recessed channels arranged at intervals along the moving direction of the moving structure, and each of the second recessed channels extends along the circumferential direction of the driving shaft;
[0018] The number of the groups of the second recessed channel groups is the same as the number of the convex portions. And when the rotating member is in the mating position, each of the convex portions is located in any one of the second recessed channels in each of the second recessed channel groups one by one, and is in limiting fit with the side wall surface of the second recessed channel along the moving direction of the moving structure;
[0019] The number of the first recessed channels is the same as the number of the convex portions. And when the rotating member is in the non-mating position, each of the convex portions is located in each of the first recessed channels one by one.
[0020] In some embodiments, multiple groups of convex portion groups are formed on the outer peripheral surface of the driving shaft. The multiple groups of convex portion groups are arranged at intervals along the circumferential direction of the driving shaft, and the intervals between adjacent two groups of the convex portion groups form the first recessed channels;
[0021] Each group of the convex portion groups includes a plurality of convex portions arranged at intervals along the moving direction of the moving structure. The intervals between each adjacent two convex portions form the second recessed channels; the number of the convex portions in different convex portion groups is the same, and the positions of the convex portions in different convex portion groups are in one-to-one correspondence along the moving direction of the moving structure;
[0022] Reduction portions are formed at both ends of each of the convex portions along the circumferential direction of the driving shaft, and the thickness of the reduction portion along the moving direction of the moving structure decreases in the direction extending from the middle position of the convex portion to the edge position.
[0023] In some embodiments, the second transmission structure is at least one slot formed on the outer peripheral surface of the rotating member; the first transmission structure is a fork structure formed on the outer periphery of the shifting member;
[0024] During the process of the shifting member rotating to any one of the transmission positions, the fork structure moves into the slot of the rotating member corresponding to this transmission position, and drives the rotating member to rotate from the non-mating position to the mating position during the moving-in process; during the process of the shifting member leaving this transmission position, the fork structure moves out of the slot, and drives the rotating member to be converted from the mating position to the non-mating position during the moving-out process.
[0025] In some embodiments, the moving structure includes a first shift cover plate and a second shift cover plate which are sequentially stacked and connected to each other along the moving direction of the moving structure, an accommodation space is formed between the first shift cover plate and the second shift cover plate, and the rotating structure is rotatably disposed in the accommodation space;
[0026] At least two first through holes are coaxially arranged in the first shift cover plate and the second shift cover plate, and the driving shafts are correspondingly and sequentially passed through the first through holes in the first shift cover plate and the second shift cover plate along the moving direction of the moving structure.
[0027] In some embodiments, the antenna phase adjustment device also includes a first driving module, which is transmission-connected to at least one of the first shift cover plate and the second shift cover plate, and is used to drive the first shift cover plate and the second shift cover plate to move along the moving direction of the moving structure.
[0028] In some embodiments, the first driving module includes a first motor and a driving screw, one end of the driving screw is connected to the driving shaft of the first motor, and the other end passes through a through hole respectively arranged in the first shift cover plate and a threaded hole in the second shift cover plate in sequence, and the external thread of the driving screw cooperates with the internal thread of the threaded hole.
[0029] In some embodiments, the antenna phase adjustment device further includes a second driving module, which is transmission-connected to the shift component and is used to drive the shift component to rotate.
[0030] In some embodiments, the second driving module includes a shift lever and a second motor, wherein one end of the shift lever is connected to the driving shaft of the second motor, and the other end is matched with the shift component in a limit position in a direction around the rotation center line of the shift component, and is relatively movable along the moving direction of the moving structure, and the second motor is used to drive the shift component to rotate through the shift lever.
[0031] In some embodiments, a non-circular through hole is provided in the shift component, the shift lever passes through the non-circular through hole along the moving direction of the moving structure, and the outer peripheral surface shape of the shift lever is matched with the hole wall shape of the non-circular through hole.
[0032] In some embodiments, the antenna phase adjustment device further includes a mounting module. The mounting module includes a first driving cover plate, in which at least two mounting holes are provided. At least two of the driving shafts are respectively passed through at least two of the mounting holes. A buffer member is provided in each of the mounting holes. The buffer member is configured to keep the other driving shafts that do not move with the moving structure stationary when one of the driving shafts moves with the moving structure.
[0033] In some embodiments, the antenna phase adjustment device further includes a mounting module. The mounting module includes a second driving cover plate and at least one guiding rod. Among them, the second driving cover plate is relatively arranged on a side of the first shifting cover plate away from the second shifting cover plate; at least one guiding rod is parallel to the moving direction of the moving structure; one end of the guiding rod is fixedly connected to the second driving cover plate, and the other end sequentially passes through a second through hole coaxially arranged in the first shifting cover plate and the second shifting cover plate, and relatively moves along the moving direction of the moving structure through the second through hole with the first shifting cover plate and the second shifting cover plate.
[0034] As another technical solution, an antenna device provided by an embodiment of the present application includes:
[0035] A phase shifter, including at least two phase shifter sliders of different frequency bands, for adjusting the beam azimuth angle of the corresponding frequency band; and
[0036] The above antenna phase adjustment device provided by the embodiment of the present application.
[0037] By reading the specification, claims and drawings of the present application, other objects and features of the present application will be clear. Description of the Drawings
[0038] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:
[0039] Figure 1 is a structural diagram of the antenna phase adjustment device provided by the embodiment of the present application;
[0040] Figure 2 is a structural diagram of the driving shaft adopted by the embodiment of the present application;
[0041] Figure 3 is an external assembly diagram of the moving structure and the rotating structure adopted by the embodiment of the present application;
[0042] Figure 4 is an assembly diagram of the shifting component and at least two rotating components inside the moving structure adopted by the embodiment of the present application;
[0043] Figure 5 It is a structural diagram of a shifting component adopted in an embodiment of the present application;
[0044] Figure 6 It is a structural diagram of a rotating component adopted in an embodiment of the present application;
[0045] Figure 7 It is a diagram showing the cooperation relationship between a shifting component and at least two rotating components adopted in an embodiment of the present application;
[0046] Figure 8 It is a partial enlarged view of a drive shaft at a first fitting structure adopted in an embodiment of the present application;
[0047] Figure 9 It is an exploded view of a moving structure adopted in an embodiment of the present application;
[0048] Figure 10 It is a structural diagram of an antenna phase adjustment device provided in an embodiment of the present application after removing the housing.
[0049] Main element symbol description:
[0050] 100, antenna phase adjustment device; 10, drive shaft; 101, shaft body; 102, first fitting structure; 102a, first recess; 102b, second recess; 102b1, side wall surface; 102c, mounting recess; 102d, protrusion; 102d1, reduction part; 20, rotating structure; 21, moving structure; 211, first shifting cover plate; 212, second shifting cover plate; 213, first through hole; 214, center hole; 215, second through hole; 22, shifting component; 221, first transmission structure; 222, non-circular through hole; 23, rotating component; 231, second fitting structure; 232, second transmission structure; 30, first drive module; 31, first motor; 32, drive screw; 40, second drive module; 41, second motor; 42, shifting lever; 51, housing; 52, guide rod; 53, second drive cover plate; 531, first through hole; 532, second through hole; 54, first drive cover plate; 541, mounting hole; 542, buffer component; A, rotation center line of the shifting component; B, drive module; C, multi-frequency phase module. Detailed implementation manners
[0051] The following details the implementation manners of the present application. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.
[0052] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.
[0053] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the connection inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0054] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.
[0055] In the description of this specification, the descriptions referring to terms such as "one embodiment", "certain embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0056] Please refer to Figure 1 , an antenna phase adjustment device 100 is provided in an embodiment of this application, which is used to drive the phase shifter slide of the antenna device to adjust the phase, so as to precisely control the direction of the antenna beam. The antenna device is, for example, a base station antenna. Additionally, for the case where the antenna device includes multiple phase shifters, each phase shifter is responsible for adjusting the signal of a specific frequency band. In this case, the antenna phase adjustment device 100 provided in the embodiment of this application can realize the beam direction adjustment of multiple frequency bands by independently controlling the slide positions of these phase shifters. In a specific embodiment, the phase shifter generally consists of a main printed circuit board and a movable slide printed circuit board. Transmission line traces are provided on the main printed circuit board, and the slide printed circuit board can move on the main printed circuit board. By changing the position of the slide printed circuit board, the transmission path length of the radio frequency signal is changed, thereby changing the phase of the signal.
[0057] The antenna phase adjustment device 100 provided in the embodiment of this application includes: at least two drive shafts 10 and a shift module. The shift module includes a moving structure 21 and a rotating structure 20. Among them, at least two drive shafts 10 are used to be connected to the phase shifter slides of at least two different frequency bands in a one-to-one correspondence. All the drive shafts 10 together form a drive module B, which is used as the drive component for the phase shifter slides of all frequency bands. The drive module B and the rotating structure 20 together form a multi-frequency phase module C for realizing the beam direction adjustment of multiple frequency bands.
[0058] The moving structure 21 is in transmission cooperation with at least two drive shafts 10 and is used to selectively drive the phase shifter slide corresponding to any one of the drive shafts 10 to perform phase adjustment. The rotating structure 20 is rotatably connected to the moving structure 21. The rotating structure 20 is used to rotate through different transmission positions and drive the moving structure 21 to be in transmission cooperation with one of the at least two drive shafts 10 at different transmission positions. It is easy to understand that the transmission position refers to the position where the rotating structure 20 is located after rotating a preset angle. Each transmission position corresponds to one drive shaft 10. The rotating structure 20 drives the moving structure 21 to be in transmission cooperation with the drive shaft 10 corresponding to this transmission position at one of the transmission positions, while the drive shafts 10 corresponding to other transmission positions are all in a state of being disengaged from transmission cooperation with the moving structure 21. When the rotating structure 20 switches between different transmission positions by rotating, it is possible to realize the switching between the transmission cooperation of the moving structure 21 with different drive shafts 10. Driven by the moving structure 21, the drive shaft 10 in transmission cooperation with it drives the corresponding phase shifter slide to perform phase adjustment. While the other drive shafts 10 not in transmission cooperation with the moving structure 21 remain stationary, so that the phase shifter slides corresponding to these drive shafts 10 also remain stationary. Thus, a gear shifting operation (that is, switching between adjusting the signal phases of different frequency bands) can be realized. In practical applications, according to the frequency band to be adjusted, the rotating structure 20 can be rotated to the corresponding transmission position, and then driven by the moving structure 21, the drive shaft 10 in transmission cooperation with it drives the corresponding phase shifter slide to perform phase adjustment.
[0059] In practical applications, the number of drive shafts 10 can be adjusted according to the frequency band requirements of the antenna device. For example, for an antenna device that needs to adjust 8 frequency bands, 8 drive shafts 10 can be set, and each drive shaft 10 corresponds to the phase shifter slide of one frequency band.
[0060] The antenna phase adjustment device 100 provided by the embodiment of the present application realizes the switching between different transmission positions by the rotation of the rotating structure 20, so that the moving structure 21 switches between the transmission cooperation with different drive shafts 10, and finally realizes the gear shifting operation (that is, switching between adjusting the signal phases of different frequency bands). The structure of this gear shifting module is simpler, and the gear shifting operation is more accurate and reliable. On this basis, by rotatably connecting the rotating structure 20 and the moving structure 21 in the present application, the two can be moved as a whole, so that the driving force can be directly applied to this whole, thus simplifying the structure and improving the integration of the device. Moreover, this integrated design can reduce the number of transmission components, and the compact structure enables the device to better adapt to the limited installation space. Especially in application scenarios with high space requirements such as base station antennas, the advantages of this design are particularly obvious. In addition, the integrated design also reduces the manufacturing cost and assembly difficulty, and at the same time reduces the failure rate of the device and improves the convenience of maintenance.
[0061] In some embodiments, the rotating structure 20 includes a shifting component 22 and at least two rotating components 23. Both the shifting component 22 and the at least two rotating components 23 are rotatably connected to the moving structure 21. Each transmission position, each rotating component 23, and each drive shaft 10 correspond to each other one by one. The shifting component 22 is used to be in transmission cooperation with the corresponding rotating component 23 at any one transmission position to drive the rotating component 23 to rotate to a position in transmission cooperation with the corresponding drive shaft 10. It is also used to drive the rotating component 23 to rotate away from the above position during the process of leaving this transmission position, so that the rotating component 23 is disengaged from the corresponding drive shaft 10, and the shifting component 22 is disengaged from the corresponding rotating component 23 after leaving this transmission position.
[0062] Specifically, during the process of the shifting component 22 rotating and reaching any one transmission position, it is in transmission cooperation with the rotating component 23 corresponding to this transmission position to drive the rotating component 23 to rotate to a position in transmission cooperation with the corresponding drive shaft 10. During the process of the shifting component 22 continuing to rotate in the same direction and leaving this transmission position, it drives the rotating component 23 to rotate away from the position in transmission cooperation with the corresponding drive shaft 10, that is, the rotating component 23 is disengaged from the corresponding drive shaft 10. And, the shifting component 22 will also be disengaged from the corresponding rotating component 23 during the process of leaving this transmission position. Then, if the shifting component 22 continues to rotate in the same direction, it will reach the next transmission position, that is, realize the switching between different transmission positions. The above-mentioned shifting component 22 and each rotating component 23 are both integrated into the moving structure 21 and can all rotate relative to the moving structure 21. In this way, the shifting component 22 and each rotating component 23 can move as a whole with the moving structure 21, so that the driving force can be directly applied to this whole instead of individual transmission components, thus simplifying the transmission structure and improving the integration degree of the device. Moreover, this integrated design can reduce the number of transmission components, and the compact structure enables the device to better adapt to the limited installation space. Especially in application scenarios with high space requirements such as base station antennas, this design advantage is particularly obvious. In addition, the integrated design also reduces the manufacturing cost and assembly difficulty, and at the same time reduces the failure rate of the device and improves the convenience of maintenance.
[0063] Further, in some embodiments, at least two drive shafts 10 are arranged around the rotation center line A of the shifting component 22 and are parallel to the rotation center line A of the shifting component 22. In one example, all the drive shafts 10 are, for example, evenly distributed around the rotation center line A of the shifting component 22. Please refer to Figure 2, each drive shaft 10 includes, for example, a columnar shaft body 101, and the axis of the shaft body 101 is parallel to the rotation center line A of the shifting member 22. Each rotating member 23 is coaxially arranged with the corresponding drive shaft 10 and is rotatably arranged on the moving structure 21 around the axis of the corresponding drive shaft 10. By arranging at least two drive shafts 10 around the rotation center line A of the shifting member 22, each rotating member 23 can be compactly arranged around the shifting member 22. At the same time, by coaxially arranging each rotating member 23 with the corresponding drive shaft 10 and rotatably arranging it on the moving structure 21 around the axis of the corresponding drive shaft 10, the occupied space of each rotating member 23 and each drive shaft 10 can be saved, thereby improving the structural compactness of the device and better adapting to the limited installation space.
[0064] Please refer to Figures 2 to 6 , and in combination with Figure 1 , each drive shaft 10 is provided with a first mating structure 102. The first mating structure 102 is, for example, a structure formed on the outer periphery of the shaft body 101. The shifting member 22 is provided with a first transmission structure 221; each rotating member 23 is provided with a second mating structure 231 and a second transmission structure 232. The first transmission structure 221 is used to be in transmission cooperation with the second transmission structure 232 of the rotating member 23 corresponding to this transmission position at any transmission position to drive the rotating member 23 to rotate from the non-mating position to the mating position in transmission cooperation with the corresponding drive shaft 10; the second mating structure 231 of the rotating member 23 located at this mating position is in transmission cooperation with the first mating structure 102 of the corresponding drive shaft 10; the shifting member 22 is further used to drive the rotating member 23 corresponding to this transmission position to rotate from the above-mentioned mating position to the non-mating position during the process of leaving this transmission position, so that the second mating structure 231 is disengaged from the first mating structure 102; and after the shifting member 22 leaves this transmission position, the first transmission structure 221 is disengaged from the second transmission structure 232 of the corresponding rotating member 23.
[0065] Specifically, please refer to Figure 7, the shifting component 22 is used to selectively rotate to any one of the transmission positions. During the rotation to this transmission position, its first transmission structure 221 is in transmission cooperation with the second transmission structure 232 of the rotating component 23 corresponding to this transmission position. Under the action of this cooperation, it can drive the rotating component 23 to rotate, so that it rotates from the non-cooperating position to the cooperating position. That is, when the shifting component 22 is in the transmission position, the rotating component 23 corresponding to this transmission position is in the cooperating position. In this cooperating position, the second cooperating structure 231 of the rotating component 23 is in transmission cooperation with the first cooperating structure 102 of the corresponding drive shaft 10. Under the action of this cooperation, the drive shaft 10 coaxial with the rotating component 23 can move together with the moving structure 21. That is, the drive shaft 10 can move along the direction parallel to the rotation center line A of the shifting component 22 under the drive of the moving structure 21, thereby driving the phase shifter slide connected to the drive shaft 10 to move, and further realizing the signal phase adjustment of the corresponding frequency band of the phase shifter slide.
[0066] During the process that the shifting component 22 continues to rotate in the same direction to leave the current transmission position, it drives the rotating component 23 corresponding to this transmission position to rotate from the above-mentioned cooperating position to the non-cooperating position. In this non-cooperating position, the second cooperating structure 231 of the rotating component 23 is disengaged from the first cooperating structure 102 of the corresponding drive shaft 10, so that the drive shaft 10 coaxial with the rotating component 23 does not move with the moving structure 21. That is, the drive shaft 10 remains stationary when the moving structure 21 moves along the direction parallel to the rotation center line A of the shifting component 22, so that the position of the phase shifter slide connected to the drive shaft 10 remains unchanged.
[0067] After that, during the process that the shifting component 22 further continues to rotate in the same direction, the first transmission structure 221 is disengaged from the second transmission structure 232 of the corresponding rotating component 23. At this time, the rotating component 23 remains in the non-cooperating position and does not rotate with the shifting component 22.
[0068] In a specific embodiment, all the drive shafts 10 are evenly distributed around the rotation center line A of the shifting component 22. In this case, the shifting component 22 realizes the sequential rotation to each transmission position by sequentially rotating the same angle in the same direction. For example, as Figure 4 and Figure 7As shown, eight drive shafts 10 are evenly distributed around the rotation center line A of the shift component 22. Correspondingly, eight rotating components 23 are evenly distributed around the rotation center line A of the shift component 22. That is, the central angle between the rotation centers of two adjacent rotating components 23 is 45°. In this case, the shift component 22 reaches a transmission position every 45° of rotation in the same direction. After the shift component 22 rotates the same angle (i.e., the above central angle), its first transmission structure 221 is in transmission cooperation with the second transmission structure 232 of one of the rotating components 23. And during the process of the shift component 22 rotating from the current transmission position to the next transmission position, the first transmission structure 221 is disengaged from the second transmission structure 232 of the rotating component 23 corresponding to the current transmission position. After the shift component 22 rotates one full circle, the first transmission structure 221 is in transmission cooperation with the second transmission structures 232 of all the rotating components 23 once and is disengaged once. In practical applications, by setting a multiple (from 1 to N times, where N is the number of transmission positions, for example, 8) of the rotation angle of the shift component 22 (i.e., 360° divided by N), the shift component 22 can be rotated to the desired transmission position.
[0069] It is easy to understand that during the process of the shift component 22 approaching any one of the transmission positions, it will drive the rotating component 23 corresponding to that transmission position to rotate so that it rotates from the non-cooperating position to the cooperating position. Then, by making the shift component 22 stay at that transmission position, the rotating component 23 corresponding to that transmission position can be made to stay at the cooperating position. For example Figure 4 the position of the leftmost rotating component 23 in [example]. Thus, the second cooperation structure 231 of the rotating component 23 and the first cooperation structure 102 of the corresponding drive shaft 10 can be maintained in a state of transmission cooperation. At this time, the drive shaft 10 can move in a direction parallel to the rotation center line A of the shift component 22 under the drive of the moving structure 21. After the corresponding phase shifter slide moves, if it is necessary to switch to other frequency bands, the shift component 22 is made to leave the current transmission position and rotate to other transmission positions. During the process of the shift component 22 leaving the current transmission position, it will drive the rotating component 23 corresponding to that transmission position to rotate from the above-mentioned cooperating position to the non-cooperating position. In this non-cooperating position, the second cooperation structure 231 of the rotating component 23 is disengaged from the first cooperation structure 102 of the corresponding drive shaft 10. For example Figure 4All the rotating components 23 except the leftmost rotating component 23 are in the non-mating position. Subsequently, the first transmission structure 221 is disengaged from the second transmission structure 232 of the rotating component 23 corresponding to the current transmission position. At this time, the rotating component 23 remains in the non-mating position and does not rotate with the shifting component 22, so that the drive shaft 10 coaxial with the rotating component 23 does not move with the moving structure 21. That is, the drive shaft 10 remains stationary when the moving structure 21 moves in a direction parallel to the rotation center line A of the shifting component 22. Thus, the position of the phase shifter slide connected to the drive shaft 10 remains unchanged. Accordingly, according to specific requirements, by rotating the shifting component 22 by a corresponding angle, the signal phase of any frequency band can be freely selected and adjusted.
[0070] The antenna phase adjustment device 100 provided in the embodiment of the present application realizes the switching between the first transmission structure 221 and the second transmission structures 232 of the respective rotating components 23 between mating and non-mating states by rotating the shifting component 22, so that the respective rotating components 23 are switched between the mating position and the non-mating position, thereby realizing the shifting operation (i.e., switching between adjusting the signal phases of different frequency bands). This shifting structure is simpler than the structure of the prior art (such as using gear transmission to realize shifting), and the shifting operation is more accurate and reliable, avoiding the problems of jamming or wear that may occur in traditional gear transmission.
[0071] In some embodiments, as Figure 6 shown, the rotating component 23 is annular and is arranged around the coaxial drive shaft 10; the second mating structure 231 is at least one convex portion formed on the inner circumferential surface of the rotating component 23. For example, Figure 6 shows 4 convex portions, and the 4 convex portions can be evenly distributed along the circumferential direction of the rotating component 23. As Figure 8 shown, the first mating structure 102 is a concave channel structure formed on the outer circumference of the drive shaft 10, and the concave channel structure is arranged such that when the rotating component 23 is in the mating position, the concave channel structure is in limit mating with the respective convex portions in a direction parallel to the rotation center line A of the shifting component 22 (i.e., in the moving direction of the moving structure 21). Under this mating action, the rotating component 23 can drive the drive shaft 10 to move in a direction parallel to the rotation center line A of the shifting component 22 when the moving structure 21 moves. When the rotating component 23 is in the non-mating position, the concave channel structure is disengaged from the respective convex portions. At this time, the rotating component 23 moves alone with the moving structure 21, while the drive shaft 10 remains stationary.
[0072] By nesting the above-mentioned annular rotating member 23 with the drive shaft 10, the fit between the rotating member 23 and the drive shaft 10 is made closer, improving the stability and reliability of the device, and at the same time facilitating the reduction of the device volume. On this basis, through the cooperation of the convex portion and the concave channel structure, the precise switching of the motion state of the drive shaft 10 can be achieved. It is easy to understand that the disengagement of the concave channel structure from each convex portion may refer to the disengagement of the limit fit between the concave channel structure and each convex portion in the direction parallel to the rotation center line A of the shift member 22, and each convex portion may still be located in the concave channel structure, or it may refer to the removal of each convex portion from the concave channel structure to achieve the disengagement of the fit with the concave channel structure.
[0073] There can be various concave channel structures for realizing the above functions. In some embodiments, please refer to Figure 8 , the concave channel structure includes at least one first concave channel 102a extending in the direction parallel to the rotation center line A of the shift member 22 (i.e., the moving direction of the moving structure 21), and at least one group of second concave channel groups. Each first concave channel 102a and each second concave channel group are alternately arranged in the circumferential direction of the drive shaft 10; each group of second concave channel groups includes a plurality of second concave channels 102b arranged at intervals in the direction parallel to the rotation center line A of the shift member 22, and each second concave channel 102b extends in the circumferential direction of the drive shaft 10; the number of groups of second concave channel groups is the same as the number of convex portions, and when the rotating member 23 is in the mating position, each convex portion is correspondingly located in any one of the second concave channels 102b in each group of second concave channel groups and is in limit fit with the side wall surface of the second concave channel 102b in the direction parallel to the rotation center line A of the shift member 22; the number of first concave channels 102a is the same as the number of convex portions, and when the rotating member 23 is in the non-mating position, each convex portion is correspondingly located in each first concave channel 102a.
[0074] Specifically, taking Figure 6 the 4 convex portions shown, and the 4 convex portions are evenly distributed along the circumferential direction of the rotating member 23 as an example, there are 4 first concave channels 102a, and there are four groups of second concave channel groups. The 4 first concave channels 102a and the four groups of second concave channel groups are alternately arranged in the circumferential direction of the drive shaft 10, that is, there is a group of second concave channel groups between each adjacent two first concave channels 102a. Each second concave channel 102b in each group of second concave channel groups is communicated with the adjacent first concave channel 102a.
[0075] When the rotating member 23 is in the non-mating position, each convex portion is correspondingly located in each first recess 102a. Since the second recess 102b extends in a direction parallel to the rotation center line A of the shifting member 22, the convex portion located in the first recess 102a can move in the first recess 102a relative to the drive shaft 10 in a direction parallel to the rotation center line A of the shifting member 22. As a result, the limit fit between the convex portion and the recess structure in the direction parallel to the rotation center line A of the shifting member 22 is released, while each convex portion can still be located in the recess structure (i.e., in the first recess 102a).
[0076] When the rotating member 23 is in the mating position, each convex portion is correspondingly located in any one of the second recesses 102b in each second recess group. Since the second recess 102b extends circumferentially along the drive shaft 10, the side wall surface 102b1 of the second recess 102b can be in limit fit with the convex portion located in the second recess 102b in a direction parallel to the rotation center line A of the shifting member 22, thereby realizing the limit fit between the convex portion and the recess structure in the direction parallel to the rotation center line A of the shifting member 22. In addition, by providing each second recess group, including a plurality of second recesses 102b arranged at intervals in a direction parallel to the rotation center line A of the shifting member 22, when the rotating member 23 is switched from the non-mating position to the mating position, the convex portion located in the first recess 102a can be moved into the second recess 102b at the corresponding position. It is easy to understand that the greater the distribution density of the second recesses 102b in each second recess group 102b in the direction parallel to the rotation center line A of the shifting member 22, the easier it is to realize that the convex portion located in the first recess 102a can be moved into the second recess 102b at the corresponding position at any position. Of course, on this basis, the distribution density of the second recess 102b should also be increased on the premise that the side wall of the second recess 102b has sufficient strength to be in limit fit with the convex portion.
[0077] Through the design of the first recess 102a and the second recess group, the fitting accuracy between the drive shaft 10 and the rotating member 23 is improved. Moreover, the alternately arranged first recess 102a and second recess group make the switching of the motion state of the drive shaft 10 more flexible.
[0078] There can be multiple ways to form the above-mentioned concave channel structure. In some embodiments, multiple groups of protrusion groups are formed on the outer peripheral surface of the drive shaft 10. The multiple groups of protrusion groups are arranged at intervals along the circumferential direction of the drive shaft 10. The interval between two adjacent groups of protrusion groups constitutes the first concave channel 102a; each group of protrusion groups includes a plurality of protrusions 102d arranged at intervals in a direction parallel to the rotation center line A of the shifting member 22. The interval between two adjacent protrusions 102d constitutes the second concave channel 102b; the number of protrusions 102d in different protrusion groups is the same, and their positions in the direction parallel to the rotation center line A of the shifting member 22 correspond one by one.
[0079] Further, in some embodiments, in order to ensure that the convex portions located in the first concave channel 102a can be more smoothly moved into the corresponding second concave channel 102b, reduction portions 102d1 are formed at both ends of each protrusion 102d in the circumferential direction of the drive shaft 10. The thickness of the reduction portion 102d1 in the direction parallel to the rotation center line A of the shifting member 22 decreases along the direction extending from the middle position of the protrusion 102d to the edge position. The reduction portion 102d1 can play a guiding role for the convex portion, enabling it to be smoothly moved into the corresponding second concave channel 102b, thereby improving the reliability of the device. In addition, with the help of the reduction portion 102d1, even when the position of the convex portion and the position of the nearest second concave channel 102b are not completely aligned, the convex portion can also be guided into the second concave channel 102b.
[0080] In addition, in some embodiments, in order to facilitate the sleeving of the rotating member 23 on the drive shaft 10, at least one installation concave channel 102c is provided at one end of the drive shaft 10. One end of each installation concave channel 102c is located at the end surface of one end of the drive shaft 10 (the end far from the end connected to the phase shifter slide), and the other end of each installation concave channel 102c extends toward the concave channel structure in a direction parallel to the rotation center line A of the shifting member 22 and is in one-to-one communication with each first concave channel 102a. In this way, when the rotating member 23 is sleeved on the drive shaft 10, the convex portions on the rotating member 23 can pass through the respective installation concave channels 102c one by one and enter the corresponding first concave channels 102a.
[0081] In some embodiments, as Figure 6 shown, the second transmission structure 232 is at least one slot formed on the outer peripheral surface of the rotating member 23. The slot is, for example, a U-shaped slot (i.e., the opening size remains unchanged as the depth increases) as Figure 6 shown or a C-shaped slot (i.e., the opening size decreases as the depth increases) as Figure 7 shown. The axial direction of the slot coincides with the radial direction of the rotating member 23, for example. As Figure 5 and Figure 7As shown, the first transmission structure 221 is a fork structure formed on the outer periphery of the shift component 22. For example, the fork structure is a concave-convex structure formed on the outer periphery of the shift component 22. The concave-convex structure includes, for example, a convex portion and concave portions located on both sides of the convex portion. When the shift component 22 rotates, the side surface of the convex portion in the outer peripheral direction of the shift component 22 can abut against the side surface of the slot of any one of the rotating components 23, thereby driving the rotating component 23 to rotate. The convex portion of the concave-convex structure protrudes radially along the shift component 22. The function of the concave portion in the concave-convex structure is to expose the side surface of its convex portion so that it can abut against the side surface of the slot of any one of the rotating components 23. Two concave portions are provided on both sides of the convex portion to adapt to the two opposite rotation directions of the shift component 22, namely clockwise and counterclockwise, so that no matter whether the shift component 22 rotates clockwise or counterclockwise, it can abut against the side surface of the slot of any one of the rotating components 23. As Figure 4 shown, when the convex portion of the concave-convex structure is inserted into the slot and the opening direction of the slot is parallel to the radial direction of the shift component 22, the rotation of the shift component 22 is stopped. At this time, the rotating component 23 is in a non-mating position, and the convex portion of the rotating component 23 is located in the corresponding second concave channel 102b. During the continuous rotation of the convex portion of the concave-convex structure from this position, the convex portion of the concave-convex structure moves out of the slot and drives the rotating component 23 to continue rotating until it is converted from the non-mating position to the mating position.
[0082] During the rotation of the shift component 22 to any transmission position, the fork structure can move into the slot of the rotating component 23 corresponding to this transmission position, and drive the rotating component 23 to rotate and be converted from the non-mating position to the mating position during the moving-in process; when the shift component 22 continues to rotate in the same direction, the fork structure can move out of the slot, and drive the rotating component 23 to rotate and be converted from the mating position to the non-mating position during the moving-out process. That is to say, when the shift component 22 rotates, the fork structure can move into the slot of the corresponding rotating component 23, drive the rotating component 23 to rotate, and realize the shifting operation. When the shift component 22 continues to rotate, the fork structure can move out of the slot, and the rotating component 23 returns to the non-mating position. The cooperation between the fork structure and the slot realizes efficient transmission and improves the accuracy and reliability of shifting.
[0083] In some embodiments, please refer to Figure 1 、 Figure 4 、 Figure 9 and Figure 10The moving structure 21 includes a first shift cover plate 211 and a second shift cover plate 212 which are sequentially stacked and connected to each other in a direction parallel to the rotation center line A of the shift component 22. An accommodation space is formed between the first shift cover plate 211 and the second shift cover plate 212. The rotating structure 20 (i.e., the shift component 22 and each rotating component 23) is rotatably arranged in the accommodation space. The accommodation space is, for example, formed by a groove formed in at least one of the surfaces of the first shift cover plate 211 and the second shift cover plate 212 facing each other. Moreover, at least two first through holes 213 are coaxially arranged in the first shift cover plate 211 and the second shift cover plate 212. Each drive shaft 10 is sequentially passed through each first through hole 213 in the first shift cover plate 211 and the second shift cover plate 212 in a one-to-one correspondence in a direction parallel to the rotation center line A of the shift component 22 (i.e., the moving direction of the moving structure 21). When the first shift cover plate 211 and the second shift cover plate 212 move, the drive shaft 10 that does not move with the moving structure 21 can be stationary relative to the first shift cover plate 211 and the second shift cover plate 212 via the corresponding first through hole 213 .
[0084] By utilizing the accommodation space formed by the first shift cover plate 211 and the second shift cover plate 212, a stable supporting platform can be provided for the shift component 22 and the rotating component 23, thereby enhancing the structural stability of the entire device. Moreover, the design of the accommodation space enables the shift component 22 and the rotating component 23 to be integrated into the mobile structure 21, so that these components can be moved as a whole, thereby simplifying the transmission structure and improving the integration of the device. This integrated design not only improves the reliability of the device, but also significantly reduces the manufacturing cost of the device. In addition, each drive shaft 10 that does not move with the mobile structure 21 can use the first through hole 213 to generate relative movement with the mobile structure 21.
[0085] In some embodiments, see Figure 1 and Figure 10 The antenna phase adjustment device 100 further includes a first driving module 30, which is in transmission connection with at least one of the first shift cover plate 211 and the second shift cover plate 212, and is used to drive the first shift cover plate 211 and the second shift cover plate 212 to move in a direction parallel to the rotation centerline A of the shift component 22 (i.e., the moving direction of the moving structure 21). The first driving module 30 is used to realize automatic control of the device. Of course, in practical applications, the first driving module 30 can also be omitted. In this case, the movement of the first shift cover plate 211 and the second shift cover plate 212 can be realized by manual drive.
[0086] Further, in some embodiments, the first driving module 30 includes a first motor 31 and a driving screw 32, one end of the driving screw 32 is connected to the driving shaft of the first motor 31, and the other end passes through the through hole in the first shift cover plate 211 and the threaded hole in the second shift cover plate 212, respectively, and the external thread of the driving screw 32 cooperates with the internal thread of the threaded hole. When the first motor 31 drives the driving screw 32 to rotate, the first shift cover plate 211 and the second shift cover plate 212 can be moved relative to the driving screw 32 along the axial direction of the driving screw 32 (i.e., parallel to the direction of the rotation center line A of the shift component 22) under the cooperation of the external thread of the driving screw 32 and the internal thread of the threaded hole, that is, the driving screw 32 is used to play a transmission role, converting the rotational power of the first motor 31 into a linear power along the axial direction of the driving screw 32, and transmitting it to the first shift cover plate 211 and the second shift cover plate 212. Of course, in practical applications, the first drive module 30 may also adopt other driving modes, such as using a linear motor to drive the first shift cover plate 211 and the second shift cover plate 212 to move. The first motor 31 may use a high-precision stepper motor, for example, to achieve precise driving of the shifting components, thereby ensuring that each shifting operation can be completed accurately.
[0087] In some embodiments, the antenna phase adjustment device 100 further includes a second driving module 40, which is in driving connection with the shift component 22 and is used to drive the shift component 22 to rotate around the rotation centerline A of the shift component 22. In the embodiment including the first driving module 30, since the second driving module 40 drives the shift component 22 separately, the first driving module 30 drives the first shift cover plate 211 and the second shift cover plate 212 separately, the rotation control of the shift component 22 can be completely decoupled from the movement control of the first shift cover plate 211 and the second shift cover plate 212, thereby reducing the control difficulty and improving the reliability of the device.
[0088] Further, in some embodiments, the second drive module 40 includes a shift lever 42 and a second motor 41, wherein one end of the shift lever 42 is connected to the drive shaft of the second motor 41, and the other end cooperates with the shift component 22 in the upper limit direction around the rotation center line A of the shift component 22, and can cooperate to move relatively in the direction parallel to the rotation center line A of the shift component 22. The second motor 41 is used to drive the shift component 22 to rotate around the rotation center line A of the shift component 22 through the shift lever 42. In this way, on the basis of the second motor 41 driving the shift component 22 to rotate around the rotation center line A of the shift component 22 through the shift lever 42, the shift lever 42 and the shift component 22 can be allowed to generate relative movement in the direction parallel to the rotation center line A of the shift component 22, that is, when the shift component 22 moves with the moving structure 21, the shift lever 42 is stationary. Figure 3 andFigure 9 As shown, in an embodiment provided with a first shift cover plate 211 and a second shift cover plate 212, a central hole 214 is provided on the first shift cover plate 211 for the shift lever 42 to pass through, so as to be able to extend into the accommodation space formed by the first shift cover plate 211 and the second shift cover plate 212 to cooperate with the shift component 22.
[0089] There are various ways for the shift lever 42 and the shift component 22 to be limited and cooperate in the direction around the rotation center line A of the shift component 22. In some embodiments, such as Figure 5 As shown, a non-circular through hole 222 is provided in the shift component 22, the shift lever 42 passes through the non-circular through hole 222 along a direction parallel to the rotation center line A of the shift component 22, and the outer peripheral surface shape of the shift lever 42 is adapted to the hole wall shape of the non-circular through hole 222. The cooperation between the non-circular through hole 222 and the outer peripheral surface of the non-circular shift lever 42 can limit the relative rotation between the shift lever 42 and the shift component 22, so that the second motor 41 can drive the shift component 22 to rotate around the rotation center line A of the shift component 22 through the shift lever 42. The outer peripheral surface shape of the shift lever 42 and the hole wall shape of the non-circular through hole 222 include polygons such as quadrilaterals, hexagons, or ellipses or special shapes, etc.
[0090] In some embodiments, such as Figure 1 and Figure 10 As shown, the antenna phase adjustment device 100 further includes an installation module. The installation module includes a first drive cover plate 54. At least two installation holes 541 are provided in the first drive cover plate 54. At least two drive shafts 10 are correspondingly inserted into at least two installation holes 541. A buffer component 542 is provided in each installation hole 541. The buffer component 542 is configured to keep the other drive shafts 10 that do not move with the moving structure 21 fixed when one of the drive shafts 10 moves with the moving structure 21. This design not only improves the structural stability of the device, but also realizes the fixation and protection of the drive shafts 10 through the buffer component 542, ensuring the reliability and stability of the device during operation. The buffer component 542 is, for example, an annular flexible member such as a silica gel sleeve. The silica gel sleeve is arranged around the corresponding drive shaft 10. When the drive shaft 10 moves with the moving structure 21, the drive shaft 10 can move relative to the first drive cover plate 54 against the resistance of the silica gel sleeve; when the drive shaft 10 does not move with the moving structure 21, the drive shaft 10 can be fixed relative to the first drive cover plate 54 under the resistance of the silica gel sleeve.
[0091] In the embodiment provided with the above-mentioned installation module, the installation module may further include a second drive cover plate 53 and at least one guide rod 52. Among them, the second drive cover plate 53 is relatively arranged on the side of the first shift cover plate 211 away from the second shift cover plate 212; at least one guide rod 52 is arranged around the rotation center line A of the shift member 22 and is parallel to the rotation center line A of the shift member 22; one end of the guide rod 52 is fixedly connected to the second drive cover plate 53, and the other end sequentially passes through the second through holes 215 coaxially arranged in the first shift cover plate 211 and the second shift cover plate 212 (as Figure 9 shown), and can generate relative movement in the direction parallel to the rotation center line A of the shift member 22 through the second through holes 215, that is, the first shift cover plate 211 and the second shift cover plate 212 move relative to the guide rod 52. This design not only improves the structural stability of the device, but also realizes precise guidance of the moving structure 21 through the guide rod 52, ensuring the stability and reliability of the moving structure 21 during the moving process. In addition, at least two first through holes 531 are provided on the second drive cover plate 53 for the drive shaft 10 to pass through one by one; a second through hole 532 is also provided on the second drive cover plate 53 for the shift lever 42 to pass through.
[0092] In addition, as Figure 1 shown, the installation module may further include a housing 51, which is used to accommodate and install the motors in the above-mentioned first drive module 30 and second drive module 40, and provides an installation basis for components such as the second drive cover plate 53, the guide rod 52 and the first drive cover plate 54.
[0093] As another technical solution, an embodiment of the present application further provides an antenna device, including: a phase shifter and the above-mentioned antenna phase adjustment device 100 provided by the embodiment of the present application. Among them, the phase shifter includes at least two phase shifter sliders of different frequency bands for adjusting the beam azimuth angle of the corresponding frequency band.
[0094] The antenna device provided by the embodiment of the present application can simplify the structure, improve the reliability and reduce the cost by adopting the above-mentioned antenna phase adjustment device 100 provided by the embodiment of the present application, so as to meet the high requirements of communication base stations for antenna performance.
[0095] It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present application, but the present application is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present application, and these modifications and improvements are also regarded as the protection scope of the present application.
Claims
1. An antenna phase adjustment device, characterized in that: include: At least two drive shafts and a shift module, wherein the shift module includes a moving structure and a rotating structure, wherein the moving structure cooperates with the at least two drive shafts to selectively drive a phase shifter slide corresponding to any one of the drive shafts to perform phase adjustment; The rotating structure is rotationally connected to the moving structure, and the rotating structure is used to rotate through different transmission positions, and drive the moving structure to cooperate with one of the at least two driving shafts in transmission at different transmission positions.
2. The antenna phase adjustment device according to claim 1, characterized in that: The rotating structure comprises a shifting component and at least two rotating components, the shifting component and the at least two rotating components are both rotatably connected to the moving structure, and each of the transmission positions, each of the rotating components and each of the driving shafts corresponds to each other; The shift component is used to cooperate with the corresponding rotating component in any transmission position to drive the rotating component to rotate to a position where it cooperates with the corresponding driving shaft; it is also used to drive the rotating component to rotate away from the position when leaving the transmission position to release the rotating component from the corresponding driving shaft, and the shift component releases the transmission cooperation with the corresponding rotating component after leaving the transmission position.
3. The antenna phase adjustment device according to claim 2, characterized in that: At least two of the driving shafts are distributed around the rotation center line of the shift component and are parallel to the rotation center line of the shift component; the rotation center line of the shift component is parallel to the moving direction of the moving structure; Each of the rotating components is coaxially arranged with the corresponding driving shaft, and is rotatably arranged on the moving structure around the axis of the corresponding driving shaft.
4. The antenna phase adjustment device according to claim 2 or 3, characterized in that: Each of the driving shafts is provided with a first matching structure; the shifting component is provided with a first transmission structure; each of the rotating components is provided with a second matching structure and a second transmission structure; The first transmission structure is used to, at any transmission position, be in transmission cooperation with the second transmission structure of the rotating component corresponding to the transmission position, so as to drive the rotating component to rotate from a non-cooperating position to a coupling position in transmission cooperation with the corresponding driving shaft; the second coupling structure of the rotating component located at the coupling position is in transmission cooperation with the first coupling structure of the corresponding driving shaft; The shift component is also used to drive the rotating component corresponding to the transmission position to rotate from the mating position to the non-mating position in the process of leaving the transmission position, so that the second mating structure is disengaged from the first mating structure; and after the shift component leaves the transmission position, the first transmission structure and the corresponding second transmission structure of the rotating component are disengaged.
5. The antenna phase adjustment device according to claim 4, characterized in that: The rotating component is annular and is arranged around the corresponding driving shaft; The second matching structure is at least one convex portion formed on the inner circumferential surface of the rotating component; The first mating structure is a recessed channel structure formed on the outer periphery of the driving shaft, and the recessed channel structure is configured such that: when the rotating component is in the mating position, the recessed channel structure and each of the protrusions are engaged with each other in the upper limit position of the moving direction of the moving structure; when the rotating component is in the non-mating position, the recessed channel structure and each of the protrusions are released from engagement.
6. The antenna phase adjustment device according to claim 5, characterized in that: The groove structure includes at least one first groove extending along the moving direction of the moving structure, and at least one group of second groove groups, each of the first grooves and each of the second groove groups are alternately arranged along the circumference of the driving shaft; each group of the second groove groups includes a plurality of second grooves arranged at intervals along the moving direction of the moving structure, and each of the second grooves extends along the circumference of the driving shaft; The number of the second groove groups is the same as the number of the convex parts, and when the rotating member is in the matching position, each convex part is located in any one of the second grooves in each of the second groove groups in a one-to-one correspondence, and is limitedly matched with the side wall surface of the second groove along the moving direction of the moving structure; The number of the first recesses is the same as the number of the protrusions, and when the rotating component is located at the non-matching position, the protrusions are located in the first recesses in a one-to-one correspondence.
7. The antenna phase adjustment device according to claim 6, characterized in that: The outer circumferential surface of the drive shaft is formed with a plurality of protrusion groups, the plurality of protrusion groups are arranged at intervals along the circumference of the drive shaft, and the interval between two adjacent protrusion groups constitutes the first concave channel; Each group of the protrusions comprises a plurality of protrusions arranged at intervals along the moving direction of the moving structure, and the interval between each two adjacent protrusions constitutes the second concave channel; the number of the protrusions in different protrusion groups is the same, and the positions along the moving direction of the moving structure correspond one to one; Each of the protrusions is formed with a tapered portion at both ends along the circumferential direction of the driving shaft, and the thickness of the tapered portion in the moving direction of the moving structure decreases along the direction extending from the middle position of the protrusion to the edge position.
8. The antenna phase adjustment device according to claim 4, characterized in that: The second transmission structure is at least one slot formed on the outer circumference of the rotating component; the first transmission structure is a shift fork structure formed on the outer circumference of the shift component; During the process of the shift component rotating to any one of the transmission positions, the shift fork structure moves into the slot of the rotating component corresponding to the transmission position, and drives the rotating component to rotate from the non-matching position to the matching position during the moving-in process; during the process of the shift component leaving the transmission position, the shift fork structure moves out of the slot, and drives the rotating component to be converted from the matching position to the non-matching position during the moving-out process.
9. The antenna phase adjustment device according to claim 1, characterized in that: The moving structure comprises a first shift cover plate and a second shift cover plate which are sequentially stacked and connected to each other along the moving direction of the moving structure, an accommodation space is formed between the first shift cover plate and the second shift cover plate, and the rotating structure is rotatably disposed in the accommodation space; At least two first through holes are coaxially arranged in the first shift cover plate and the second shift cover plate, and the driving shafts are correspondingly and sequentially passed through the first through holes in the first shift cover plate and the second shift cover plate along the moving direction of the moving structure.
10. The antenna phase adjustment device according to claim 9, characterized in that: The antenna phase adjustment device also includes a first driving module, which is transmission-connected to at least one of the first shift cover plate and the second shift cover plate, and is used to drive the first shift cover plate and the second shift cover plate to move along the moving direction of the moving structure.
11. The antenna phase adjustment device according to claim 10, characterized in that: The first driving module includes a first motor and a driving screw, one end of the driving screw is connected to the driving shaft of the first motor, and the other end passes through the through hole in the first shift cover plate and the threaded hole in the second shift cover plate respectively, and the external thread of the driving screw cooperates with the internal thread of the threaded hole.
12. The antenna phase adjustment device according to claim 2 or 3, characterized in that: The antenna phase adjustment device further includes a second driving module, which is transmission-connected to the shift component and is used to drive the shift component to rotate.
13. The antenna phase adjustment device according to claim 12, characterized in that: The second driving module includes a shift lever and a second motor, wherein one end of the shift lever is connected to the driving shaft of the second motor, and the other end is matched with the shift component in a limit position in a direction around the rotation center line of the shift component, and is relatively movable along the moving direction of the moving structure. The second motor is used to drive the shift component to rotate through the shift lever.
14. The antenna phase adjustment device according to claim 13, characterized in that: A non-circular through hole is provided in the shift component, the shift rod passes through the non-circular through hole along the moving direction of the moving structure, and the outer peripheral surface shape of the shift rod is matched with the hole wall shape of the non-circular through hole.
15. The antenna phase adjustment device according to claim 1, characterized in that: The antenna phase adjustment device also includes an installation module, which includes a first drive cover plate, in which at least two installation holes are arranged, and at least two drive shafts are correspondingly inserted into the at least two installation holes, and each of the installation holes is provided with a buffer component, and the buffer component is configured to keep the other drive shafts that do not move with the moving structure stationary when one of the drive shafts moves with the moving structure.
16. The antenna phase adjustment device according to claim 9, characterized in that: The antenna phase adjustment device also includes an installation module, which includes a second drive cover plate and at least one guide rod, wherein the second drive cover plate is relatively arranged on the side of the first shift cover plate away from the second shift cover plate; at least one guide rod is parallel to the moving direction of the moving structure; one end of the guide rod is fixedly connected to the second drive cover plate, and the other end passes through second through holes coaxially arranged in the first shift cover plate and the second shift cover plate in sequence, and generates relative movement with the first shift cover plate and the second shift cover plate along the moving direction of the moving structure through the second through hole.
17. An antenna device, characterized in that: include: A phase shifter, comprising at least two phase shifter slides of different frequency bands; as well as An antenna phase adjustment device as described in any one of claims 1 to 16.
Citation Information
Patent Citations
Antenna shifting mechanism
CN109244671A