CN114284732A - Phase adjustment mechanism and electrically tunable antenna - Google Patents
Phase adjustment mechanism and electrically tunable antenna Download PDFInfo
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- CN114284732A CN114284732A CN202210088432.7A CN202210088432A CN114284732A CN 114284732 A CN114284732 A CN 114284732A CN 202210088432 A CN202210088432 A CN 202210088432A CN 114284732 A CN114284732 A CN 114284732A
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Abstract
The invention relates to the technical field of communication antennas, and particularly discloses a phase adjusting mechanism and an electric tilt antenna, wherein the phase adjusting mechanism comprises a plurality of mounting brackets, a plurality of positioning screw rods, a gear shifting assembly and a positioning driving assembly: the mounting bracket is used for mounting and fixing the phase shifter; each positioning screw rod penetrates through one mounting bracket; the gear shifting assembly is used for enabling part of the position adjusting screw rods to be in transmission connection with the position adjusting driving assembly; the positioning driving assembly is used for driving the positioning screw rods which are established with the transmission connection relation to rotate, so that the corresponding mounting supports do linear motion along the positioning screw rods. The phase adjusting mechanism and the electric tilt antenna provided by the invention can be used for carrying out independent position adjustment on a plurality of phase shifters, and are beneficial to reducing the cost and the volume of the electric tilt antenna.
Description
Technical Field
The invention relates to the technical field of communication antennas, in particular to a phase adjusting mechanism and an electric tilt antenna.
Background
In mobile communication, an electrically tunable antenna is generally used to optimize signal coverage and suppress signal interference to neighboring cells. Specifically, the phase shifter and the phase adjusting mechanism for adjusting the position of the phase shifter are necessary components of the electrically tunable antenna, and the performance adjustment of the electrically tunable antenna can be realized by adjusting the position of the phase shifter through the phase adjusting mechanism.
The existing phase adjusting mechanism can only adjust one phase shifter, so that the existing electrically tunable antenna needs to be provided with an independent phase adjusting mechanism for each phase shifter. In the past, the phase shifters in one electrically-tunable antenna are not enough, so that the problem is not great even if each phase shifter is provided with a phase adjusting mechanism. Nowadays, with the popularization of 5G communication technology, a multi-frequency antenna has become a demand trend.
Along with the increase of the antenna frequency fusion demand, the number of the phase adjusting mechanisms is more and more, so that the weight, the cost, the volume and the like of the electric tuning antenna are larger and larger, and the development trend of miniaturization cannot be met.
Therefore, the existing phase adjusting mechanism needs to be improved to solve the problems that the whole cost of the electrically tunable antenna is higher and the volume is larger because only one phase shifter can be adjusted.
The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is currently known to one of ordinary skill in the art.
Disclosure of Invention
One object of the present invention is to provide a phase adjustment mechanism and an electrically tunable antenna, which can achieve position adjustment of multiple phase shifters by using a group of shift assemblies and a group of position adjustment driving assemblies, thereby greatly reducing the size and cost of a multi-frequency antenna and being beneficial to meeting the market demand of miniaturization.
To achieve the above object, in one aspect, the present invention provides a phase adjustment mechanism, which includes a plurality of mounting brackets, a plurality of positioning screws, a gear shift assembly and a positioning driving assembly:
the mounting bracket is used for mounting and fixing the phase shifter;
each positioning screw rod penetrates through one mounting bracket;
the gear shifting assembly is used for enabling part of the position adjusting screw rods to be in transmission connection with the position adjusting driving assembly;
the positioning driving assembly is used for driving the positioning screw rods which are established with the transmission connection relation to rotate, so that the corresponding mounting supports do linear motion along the positioning screw rods.
Optionally, the positioning screw rod includes:
the screw rod main body is in threaded connection with the corresponding mounting bracket;
the sliding sleeve is sleeved at one end, close to the gear shifting assembly, of the screw rod main body and is in sliding connection with the end part of the screw rod main body;
the clutch gear is fixed on the sliding sleeve;
and the elastic component is used for driving the sliding sleeve to slide to the clutch gear to be separated from the positioning driving assembly.
Optionally, a sliding groove for inserting the screw rod main body is formed in the end face, close to the screw rod main body, of the sliding sleeve, and the elastic component is located in the sliding groove.
Optionally, the shift assembly comprises:
a shifting press block;
and the shifting linear driving mechanism is connected with the shifting press block and is used for driving the shifting press block to move to a position far away from one end of the screw rod main body with different sliding sleeves to be abutted, so that the corresponding clutch gear on the sliding sleeve is in transmission connection with the positioning driving assembly.
Optionally, the shift linear drive mechanism comprises:
the gear shifting screw rod is in threaded connection with the gear shifting pressing block, and the position adjusting screw rods are arranged along the direction parallel to the length of the gear shifting screw rod;
and one end of the gear shifting joint is in transmission connection with the gear shifting screw rod, and the other end of the gear shifting joint is provided with a gear shifting interface for the gear shifting motor to access.
Optionally, the positioning driving assembly includes:
a rotating rod;
and each driving gear is sleeved on the rotating rod and is arranged in one-to-one correspondence with each clutch gear.
Optionally, the positioning driving assembly further includes:
and one end of the positioning joint is in transmission connection with the rotating rod, and the other end of the positioning joint is provided with a positioning interface for a positioning motor to be connected.
Optionally, an intermediate gear is disposed between each clutch gear and the driving gear.
In another aspect, an electrically tunable antenna is provided, which includes a plurality of phase shifters and any one of the phase adjusting mechanisms.
The invention has the beneficial effects that: the phase adjusting mechanism is provided, under the general condition, each positioning screw rod is in a state of being separated from a positioning driving assembly, and the positioning screw rod driving assembly cannot realize the position adjusting function of a mounting bracket. When the position of a certain phase shifter needs to be adjusted, the gear shifting assembly moves to the position corresponding to the phase shifter to be adjusted, so that the position adjusting screw rod corresponding to the phase shifter is in transmission connection with the position adjusting driving assembly through the gear shifting assembly. And then starting the position adjusting driving assembly, wherein the position adjusting screw rod which establishes a transmission connection relation with the position adjusting driving assembly only through the gear shifting assembly can rotate to further drive the corresponding mounting bracket to move, and the position adjusting screw rod which does not establish the transmission connection relation can not rotate, so that the independent position control of each phase shifter is realized.
Therefore, phase place adjustment mechanism and electricity accent antenna that this embodiment provided uses a set of subassembly and a set of positioning drive assembly of shifting to realize the position control that a plurality of phase shifters, very big reduction the volume and the cost of multifrequency antenna, be favorable to satisfying miniaturized market demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is an overall schematic view of a phase adjustment mechanism provided in an embodiment;
FIG. 2 is an internal schematic view of a phase adjustment mechanism according to an exemplary embodiment;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic side view of the positioning screw rod and the positioning driving assembly engaged according to the embodiment.
In the figure:
1. a frame;
2. mounting a bracket;
3. adjusting a position screw rod; 301. a lead screw body; 302. a sliding sleeve; 303. a clutch gear; 304. an elastic member;
4. a shift assembly; 401. a shifting press block; 402. a gear shifting screw rod; 403. a shift joint; 4031. a shift interface;
5. a positioning driving component; 501. a rotating rod; 502. a drive gear; 503. a position adjusting joint; 5031. a positioning interface; 504. an intermediate gear; 5041. a tapered portion; 5042. a cylindrical portion.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
The invention provides a phase adjusting mechanism and an electrically tunable antenna with the phase adjusting mechanism, which are suitable for application scenes of position adjustment of phase shifters, and the position adjustment of a plurality of phase shifters can be realized by using a group of gear shifting assemblies and a group of position adjusting driving assemblies, so that the size and the cost of a multi-frequency antenna are greatly reduced, and the miniaturized market demand is favorably met.
Referring to fig. 1 to 4, in the present embodiment, the electrically tunable antenna includes a phase adjustment mechanism and a plurality of phase shifters. The phase adjusting mechanism comprises a frame 1, a plurality of mounting brackets 2, a plurality of positioning screw rods 3, a gear shifting assembly 4 and a positioning driving assembly 5.
Each mounting bracket 2 can be provided with one or more fixed phase shifters, the frame 1 is provided with a plurality of longitudinal guide rods parallel to the positioning screw rods 3, and the mounting brackets 2 can slide back and forth in the frame 1 along the longitudinal guide rods.
Each positioning screw rod 3 penetrates through one mounting bracket 2 and is in threaded connection with the mounting bracket 2, so that when the positioning screw rods 3 rotate, the mounting brackets 2 can drive the phase shifters to move back and forth under the limiting action of the longitudinal guide rods, and further the adjustment of the downward inclination angle is realized.
The gear shifting assembly 4 is used for enabling part of the positioning screw rods 3 to be in transmission connection with the positioning driving assembly 5; the positioning driving assembly 5 is used for driving the positioning screw rod 3 which has established the transmission connection relation to rotate, so that the corresponding mounting bracket 2 makes linear motion along the positioning screw rod 3.
It can be understood that, in this embodiment, generally, each positioning screw 3 is in a state of being separated from the positioning driving assembly 5, and the positioning screw 3 driving assembly cannot achieve the position adjusting function of the mounting bracket 2. When the position of a certain phase shifter needs to be adjusted, the gear shifting assembly 4 moves to the position corresponding to the phase shifter to be adjusted, so that the position adjusting screw rod 3 corresponding to the phase shifter is in transmission connection with the position adjusting driving assembly 5 through the gear shifting assembly 4. And then, starting the position adjusting driving assembly 5, and only the position adjusting screw rods 3 which establish a transmission connection relation with the position adjusting driving assembly 5 through the gear shifting assembly 4 can rotate to drive the corresponding mounting brackets 2 to move, and the position adjusting screw rods 3 which do not establish the transmission connection relation can not rotate, so that the independent position control of each phase shifter is realized.
Therefore, phase place adjustment mechanism and electricity accent antenna that this embodiment provided uses a set of subassembly 4 and a set of position adjustment drive assembly 5 of shifting to realize a plurality of phase shifters's position control, very big reduction multifrequency antenna's volume and cost, be favorable to satisfying miniaturized market demand.
In this embodiment, the positioning screw 3 includes a screw body 301, a sliding sleeve 302, a clutch gear 303, and an elastic component 304. The lead screw main body 301 is rotatably mounted on the frame 1 through a bearing and is in threaded connection with the corresponding mounting bracket 2. The sliding sleeve 302 is sleeved at one end of the screw rod main body 301 close to the gear shifting assembly 4 and is connected with the end part of the screw rod main body 301 in a sliding manner; further, a sliding groove for inserting the lead screw main body 301 is formed in the end face, close to the lead screw main body 301, of the sliding sleeve 302, and the elastic component 304 is located in the sliding groove. The clutch gear 303 is fixed on the sliding sleeve 302 and can slide back and forth along with the sliding sleeve 302. In a natural state, the elastic component 304 drives the sliding sleeve 302 to slide until the clutch gear 303 is disengaged from the positioning driving assembly 5. Optionally, the elastic component 304 is a compression spring, and of course, in some other embodiments, it may also be an elastic rubber column, and the like, which is not limited in the present invention.
The shifting unit 4 comprises a shifting block 401 and a shifting linear drive. The shifting linear driving mechanism is connected with the shifting press block 401 and used for driving the shifting press block 401 to move to abut against one end, far away from the lead screw main body 301, of different sliding sleeves 302, so that the corresponding clutch gear 303 on the sliding sleeve 302 is in transmission connection with the positioning driving assembly 5.
In this embodiment, the shift linear driving mechanism includes a shift screw 402 and a shift joint 403. The gear shifting screw rod 402 is in threaded connection with the gear shifting pressing block 401, and the positioning screw rods 3 are arranged in a direction parallel to the length of the gear shifting screw rod 402; one end of the gear shifting joint 403 is in transmission connection with the gear shifting screw rod 402, and the other end of the gear shifting joint is provided with a gear shifting interface 4031 for the gear shifting motor to be connected. Optionally, the frame 1 is further provided with a transverse guide rod slidably connected to the shift press block 401, and the transverse guide rod is parallel to the shift screw 402, so that the shift press block 401 can slide left and right under the action of the shift screw 402. Alternatively, in some other embodiments, the shift linear driving mechanism may also be a telescopic cylinder, a rodless cylinder, an electric cylinder, or the like, which is not limited in the present invention.
The positioning driving assembly 5 comprises a rotating rod 501, a plurality of driving gears 502, a positioning joint 503 and an intermediate gear 504. Each of the driving gears 502 is sleeved on the rotating rod 501, can rotate along with the rotating rod 501, and is arranged in one-to-one correspondence with each of the clutch gears 303. One end of the positioning connector 503 is in transmission connection with the rotating rod 501, and the other end is provided with a positioning interface 5031 for the positioning motor to access. Optionally, an intermediate gear 504 is disposed between each clutch gear 303 and the driving gear 502. Each of the intermediate gears 504 is mounted on the frame 1 through a fixed rotating shaft, and can only rotate relative to the frame 1, but cannot slide up and down or back and forth relative to the frame 1. Alternatively, the driving gear 502 is a bevel gear, the clutch gear 303 is a cylindrical gear, and the intermediate gear 504 includes a tapered portion 5041 for meshing with the driving gear 502 and a cylindrical portion 5042 for meshing with the clutch gear 303.
Generally, the elastic component 304 pushes the clutch gear 303 forward, the clutch gear 303 is in a disengaged state with the intermediate gear 504, and the positioning driving assembly 5 cannot drive the positioning screw rod 3 to rotate; when the sliding sleeve 302 is pushed backwards by the gear shifting pressing block 401, the clutch gears 303 can slide to positions right below the corresponding intermediate gears 504 and are meshed with the corresponding intermediate gears 504, when the positioning motor works, the rotating rod 501 rotates to further enable all the driving gears 502 and the intermediate gears 504 to rotate, at the moment, only the clutch gears 303 in a meshed state with the intermediate gears 504 can rotate, other clutch gears 303 cannot rotate, only the screw rod main bodies 301 corresponding to the clutch gears 303 in a meshed state can rotate, further, the designated mounting support 2 is driven to move forwards and backwards, and downward inclination angle adjustment is achieved.
When the phase adjustment mechanism provided in this embodiment needs to adjust the position of a certain phase shifter, the working process is as follows:
(1) the gear shifting motor works first, so that the gear shifting press block 401 slides to the position-adjusting screw rod 3 corresponding to the phase shifter to be adjusted,
(2) the sliding sleeve 302 is propped against by the shifting press block 401 and slides backwards by overcoming the elasticity of the elastic component 304, and at the moment, the clutch gear 303 slides backwards along with the sliding sleeve 302 and enters a meshing state meshed with the intermediate gear 504;
(3) the positioning motor works, the rotating rod 501 is driven to rotate through the transmission rod and other components, the rotating rod 501 drives all the driving gears 502 and the intermediate gears 504 to rotate, at the moment, only the clutch gear 303 which is in a meshing state with the intermediate gear 504 rotates to further drive the corresponding lead screw main body 301 to rotate, the position of the corresponding phase shifter is changed, other clutch gears 303 which are not in the meshing state do not rotate, and therefore the positions of other phase shifters are kept unchanged.
The phase adjustment mechanism provided by the embodiment has the following advantages:
firstly, each phase shifter is required to be provided with a motor lead screw driving component, and even if a plurality of phase shifters are arranged, only one gear shifting motor and one positioning motor are needed, the cost of the motor is the highest in the whole control module, and the cost can be effectively reduced by reducing the number of the motors;
the volume can be effectively reduced while the number of the motors is reduced, and precious space is reserved for the overall layout of the miniaturized antenna;
thirdly, through the structural design of the intermediate gear 504, the rotating rod 501 can be positioned above the positioning screw rod 3, the structural mode of vertical layout can reduce the occupied area in the horizontal direction, and the compactness of the equipment is improved.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a phase place adjustment mechanism which characterized in that, includes a plurality of installing supports, a plurality of positioning lead screw, the subassembly of shifting and positioning drive assembly:
the mounting bracket is used for mounting and fixing the phase shifter;
each positioning screw rod penetrates through one mounting bracket;
the gear shifting assembly is used for enabling part of the position adjusting screw rods to be in transmission connection with the position adjusting driving assembly;
the positioning driving assembly is used for driving the positioning screw rods which are established with the transmission connection relation to rotate, so that the corresponding mounting supports do linear motion along the positioning screw rods.
2. The phase adjustment mechanism of claim 1, wherein the positioning screw comprises:
the screw rod main body is in threaded connection with the corresponding mounting bracket;
the sliding sleeve is sleeved at one end, close to the gear shifting assembly, of the screw rod main body and is in sliding connection with the end part of the screw rod main body;
the clutch gear is fixed on the sliding sleeve;
and the elastic component is used for driving the sliding sleeve to slide to the clutch gear to be separated from the positioning driving assembly.
3. The phase adjustment mechanism according to claim 2, wherein a sliding groove for inserting the lead screw main body is provided on an end surface of the sliding sleeve close to the lead screw main body, and the elastic member is located in the sliding groove.
4. The phase adjustment mechanism of claim 2, wherein the shift assembly comprises:
a shifting press block;
and the shifting linear driving mechanism is connected with the shifting press block and is used for driving the shifting press block to move to a position far away from one end of the screw rod main body with different sliding sleeves to be abutted, so that the corresponding clutch gear on the sliding sleeve is in transmission connection with the positioning driving assembly.
5. The phase adjustment mechanism according to claim 4, wherein the shift linear drive mechanism comprises:
the gear shifting screw rod is in threaded connection with the gear shifting pressing block, and the position adjusting screw rods are arranged along the direction parallel to the length of the gear shifting screw rod;
and one end of the gear shifting joint is in transmission connection with the gear shifting screw rod, and the other end of the gear shifting joint is provided with a gear shifting interface for the gear shifting motor to access.
6. The phase adjustment mechanism of claim 4, wherein the positioning drive assembly comprises:
a rotating rod;
and each driving gear is sleeved on the rotating rod and is arranged in one-to-one correspondence with each clutch gear.
7. The phase adjustment mechanism of claim 6, wherein the positioning drive assembly further comprises:
and one end of the positioning joint is in transmission connection with the rotating rod, and the other end of the positioning joint is provided with a positioning interface for a positioning motor to be connected.
8. The phase adjustment mechanism according to claim 6, wherein an intermediate gear is provided between each of the clutch gears and the drive gear.
9. An electrically tunable antenna comprising a plurality of phase shifters and a phase adjustment mechanism according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210088432.7A CN114284732A (en) | 2022-01-25 | 2022-01-25 | Phase adjustment mechanism and electrically tunable antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210088432.7A CN114284732A (en) | 2022-01-25 | 2022-01-25 | Phase adjustment mechanism and electrically tunable antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114284732A true CN114284732A (en) | 2022-04-05 |
Family
ID=80881544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210088432.7A Pending CN114284732A (en) | 2022-01-25 | 2022-01-25 | Phase adjustment mechanism and electrically tunable antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114284732A (en) |
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2022
- 2022-01-25 CN CN202210088432.7A patent/CN114284732A/en active Pending
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