CN107394403A - RCU transmission mechanisms built in multifrequency electrical tilt antenna - Google Patents
RCU transmission mechanisms built in multifrequency electrical tilt antenna Download PDFInfo
- Publication number
- CN107394403A CN107394403A CN201710595373.1A CN201710595373A CN107394403A CN 107394403 A CN107394403 A CN 107394403A CN 201710595373 A CN201710595373 A CN 201710595373A CN 107394403 A CN107394403 A CN 107394403A
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- China
- Prior art keywords
- output shaft
- bit selecting
- electrical tilt
- transmission mechanisms
- tilt antenna
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
Landscapes
- Gears, Cams (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to RCU transmission mechanisms built in a kind of multifrequency electrical tilt antenna, belong to the technical field of antenna of mobile communication base station.RCU transmission mechanisms built in the multifrequency electrical tilt antenna of the present invention, including the first motor, the second motor, bit selecting disk, the first output shaft, at least two second output shafts, and at least two the 3rd output shafts；Bit selecting disk includes circle disk body, internal gear and bit selecting portion；First output shaft is engaged with the second output shaft, and bit selecting portion is engaged with the second output shaft, and the second output shaft with the 3rd output shaft is separable engages.RCU transmission mechanisms design built in the multifrequency electrical tilt antenna of the present invention is simple, Stability Analysis of Structures, and can realize bit selecting transmission agency；Quick with compact-sized, output between centers conversion, light weight, reliability are high, save the characteristics of number of motors, can significantly reduce cost and improve transmission performance.
Description
Technical field
The present invention relates to the technical field of antenna of mobile communication base station, it is more particularly related to which a kind of multifrequency is electric
Adjust built-in antenna RCU transmission mechanisms.
Background technology
, it is necessary to which the radiation angle of antenna is adjusted using antenna drive mechanism in mobile communication technology, to reach covering
Different communication zone effects.Antenna drive mechanism has significant impact to the cost, weight and size of antenna.In the market
The shortcomings of cost is high, space-consuming is big and assembling is difficult be present in the embedded transmission mechanism of multifrequency electrical tilt antenna.
The content of the invention
In order to solve above-mentioned technical problem existing for prior art, it is an object of the invention to provide a kind of multifrequency electricity to adjust day
RCU transmission mechanisms built in line.
In order to realize foregoing invention purpose, present invention employs following technical scheme：
RCU transmission mechanisms built in a kind of multifrequency electrical tilt antenna, it is characterised in that including：First motor, the second motor, bit selecting
Disk, the first output shaft, at least two second output shafts, and at least two the 3rd output shafts；The bit selecting disk includes circle disk body, set
Put the internal gear on the inside of the circle disk body and be arranged on the circular backboard at the circle disk body back side, set on the circular backboard
It is equipped with bit selecting portion；Second output shaft is evenly distributed on the week of first output shaft centered on first output shaft
Enclose, second output shaft and the 3rd output shaft correspond, and the second end of second output shaft and the described 3rd defeated
The first end of shaft passes through the separable engagement of spline；Second motor is nibbled by the internal gear of gear shaft and bit selecting disk
Merging, which can drive the first end in the bit selecting portion and the second output shaft to coordinate, causes second output shaft and the first output shaft
Gear engages and the second end of second output shaft is passed through spline engagement with the first end of corresponding 3rd output shaft；It is described
First motor is engaged with the first output shaft by splined shaft and drives first output shaft to drive the second output being engaged with
Axle rotates, and the second output shaft synchronous that the 3rd output shaft engages rotates, and the rotation of the 3rd output shaft output is real
The change of existing phase shifter phase.
Wherein, the 3rd output shaft is thread spindle.
Wherein, the built-in RCU transmission mechanisms also include shell, the first positioning housing, the second positioning housing and bearing；Institute
Bit selecting disk is stated to be arranged between the shell and first positioning housing；First output shaft and the second output shaft are arranged on
Between first positioning housing and the second positioning housing, between the gear of second output shaft and second positioning housing
Also it is arranged with back-moving spring；3rd output shaft is arranged between second positioning housing and the bearing；Wherein, it is described
For first positioning housing with the second positioning housing respectively by being fixed parallel to the linking arm of axial direction with the shell, described first is electric
The splined shaft of machine engages through the shell with first positioning housing with first output shaft；The tooth of second motor
Wheel shaft engages through the shell with the internal gear of the bit selecting disk；The first end of second output shaft is fixed through described first
The through hole of position shell, the second end of second output shaft pass through the through hole of the described second positioning shell.
Wherein, first output shaft, the second output shaft and the 3rd output shaft are made up of engineering plastics.
Wherein, the circle disk body of the bit selecting disk, internal gear and circular backboard are integrally formed by engineering plastics.
Wherein, the engineering plastics are selected from melmac, polycarbonate resin, polyphenylene sulfide, epoxy resin
Or one kind in modified epoxy.
Wherein, the bit selecting portion is the bulge-structure with the curved surface being engaged with second output shaft, the projection
Structure hot adhesion is on the circular backboard.
Wherein, the bit selecting portion is process by metal material, preferably magnesium alloy.
Wherein, the shear strength between the bit selecting portion and the circular backboard is more than 8.0MPa, and peel strength is more than
2.0N/mm。
The second aspect of the present invention also includes a kind of multifrequency electrical tilt antenna, and it includes transmission mechanism and phase shifter, the biography
Motivation structure is selected from RCU transmission mechanisms built in above-mentioned multifrequency electrical tilt antenna；The phase shifter is defeated by bindiny mechanism and the described 3rd
Go out axis connection, and by rotating the corresponding phase for adjusting the phase shifter of output on the 3rd output shaft.
Compared with immediate prior art, RCU transmission mechanisms built in multifrequency electrical tilt antenna of the invention have and following had
Beneficial effect：
RCU transmission mechanisms design built in the multifrequency electrical tilt antenna of the present invention is simple, Stability Analysis of Structures, and the structure of bit selecting disk
Simply, stably, durability it is good, and bit selecting transmission agency can be conveniently realized；It is fast with compact-sized, output between centers conversion
Speed, light weight, reliability are high, save the characteristics of number of motors, can significantly reduce cost and improve transmission performance.
Brief description of the drawings
Fig. 1 is the structural representation of RCU transmission mechanisms built in the multifrequency electrical tilt antenna of the present invention.
Fig. 2 is the disassemblying structure schematic diagram in RCU transmission mechanisms built in the multifrequency electrical tilt antenna of the present invention.
Fig. 3 is the positive structure schematic of the bit selecting disk in the built-in RCU transmission mechanisms of the present invention.
Fig. 4 is the structure schematic diagram of the bit selecting disk in the built-in RCU transmission mechanisms of the present invention.
Wherein, the implication represented by each reference is respectively：The motors of 1- first, the motors of 2- second, 3- shells, 4- first
Positioning housing, the positioning housings of 5- second, 6- bearings, 7- bit selectings disk, the gear shaft of the motors of 8- second, the spline of the motors of 9- first
Axle, 10- main output shafts, 11- power transmission shafts, 12- output shafts, 13- back-moving springs.
Embodiment
RCU transmission mechanisms built in the multifrequency electrical tilt antenna of the present invention are further explained below with reference to specific embodiment
State, to make more complete and clear explanation to technical scheme.
As Figure 1-4, RCU transmission mechanisms built in multifrequency electrical tilt antenna of the invention include：First the 1, second electricity of motor
Machine 2, bit selecting disk 7, the first output shaft 10, at least two second output shafts 11, and at least two the 3rd output shafts 12, shell 3,
One positioning housing 4, the second positioning housing 5 and bearing 6.Bit selecting disk 7 is arranged between the positioning housing 4 of shell 3 and first；First is defeated
The output shaft 11 of shaft 10 and second is arranged between the first positioning housing 4 and the second positioning housing 5, the gear of the second output shaft 11
Back-moving spring 13 is arranged between the second positioning housing 5.3rd output shaft 12 be arranged on the second positioning housing 5 and bearing 6 it
Between.First positioning housing 4 is with the second positioning housing 5 respectively by being fixed parallel to the linking arm of axial direction with shell 3.Bit selecting Pan Bao
Include circle disk body, the internal gear being arranged on the inside of circle disk body and the bit selecting portion for being arranged on the circle disk body back side.Second output shaft 11 with
It is evenly distributed on centered on first output shaft 10 around first output shaft 10.Second output shaft 11 and the 3rd exports
Axle 12 corresponds, and the first end of the second end of second output shaft 11 and the 3rd output shaft 12 can by spline
The engagement of separation.The splined shaft 9 of first motor 1 engages through shell 3 with the first positioning housing 4 with the first output shaft 10.Second
The gear shaft 8 of motor 2 engages through shell 3 with the internal gear of bit selecting disk 7.The first end of second output shaft 11 positions through first
The through hole of shell 4, the second end of the second output shaft 11 pass through the through hole of the second positioning shell 5.Second motor 2 passes through gear
The internal gear of axle 8 and bit selecting disk 7 is engaged and can drive first end cooperation of the bit selecting portion with the second output shaft 11 so that described
Second output shaft 11 engages with the gear of the first output shaft 10 and makes the second end and the corresponding 3rd of second output shaft 11
The first end of output shaft 12 passes through spline engagement.
In the present invention, first output shaft, the second output shaft and the 3rd output shaft are made up of engineering plastics, and institute
Engineering plastics are stated in melmac, polycarbonate resin, polyphenylene sulfide, epoxy resin or modified epoxy
One kind.Specifically, above-mentioned output shaft can be formed by being molded or pouring into a mould, or can also be by purchased in market.And the bit selecting
Circle disk body, internal gear and the circular backboard of disk are integrally formed by engineering plastics.The bit selecting portion be with it is described second defeated
The bulge-structure for the curved surface that shaft is engaged, the bulge-structure hot adhesion is on the circular backboard.The bit selecting portion is by light
Matter universal metal-magnesium alloy is process, the advantages of being advantageous to play its light weight and good wearability using magnesium alloy.It is existing
In order to ensure the hot sticky knotting strength between metal and plastics in technique, generally use vulcanizes affixed technique and (and/or coordinates gap
To increase contact area), but engineering plastics of the present invention be not suitable for vulcanization it is affixed (be generally used for rubber, nylon etc. with
Metal it is affixed), and gap easily causes gap, so as to easily cracking separation in use.In order to improve magnesium and close
Hot sticky knotting strength between golden and above-mentioned engineering plastics, the present invention is first to the one of bulge-structure and the engineering plastics hot adhesion
Face is surface-treated using inorganic agent, and heats melting to the region of circular backboard hot adhesion, then by after surface treatment
Bulge-structure, which is placed on the region of heating melting and applies 0.1~0.5MPa pressure, carries out hot adhesion.In the present invention, institute
State inorganic agent by 5~10g/L imidazoles, 1~5g/L benzenethiol, 1~10g/L hexafluoride, 3~6g/L boron trioxide
And aqueous solvent composition；The pH value of the inorganic agent is 3~6, can use conventional inorganic acid such as phosphoric acid or organic acid, example
Such as conventional carboxylic acid such as acetic acid, oxalic acid adjusts pH value to defined scope.The imidazoles can for example select 1- benzyls-
2-methylimidazole, 1- 1-cyanoethyl-2-methylimidazoles or 1- cyanoethyls -2-ethyl-4-methylimidazole, and preferably containing cyanoalkyl
Imidazoles, such as 1- 1-cyanoethyl-2-methylimidazoles or 1- cyanoethyls -2-ethyl-4-methylimidazole.The diphenyl sulfide of selection for example can be with
Select 2- alkyl diphenyl sulfide, 2- alkoxy benzenes thiophenol, 2,5- dialkyl benzenes thiophenol, 2,5- dialkoxy benzenethiols etc..Described
Hexafluoride is selected from least one of hexafluorosilicate, fluotitanic acid and fluorine zirconic acid.The organic solvent is ethanol water,
And wherein the content of ethanol is 3.0~20.0wt%.The boron trioxide of addition in acid condition can be in magnesium with hexafluoride etc.
Alloy surface forms the complex system of complexity, is advantageous to be bonded with the engineering plastics melted and keeps permanent caking property.Heat
Cohesive comprises the following steps that：Oil removal treatment is carried out to bulge-structure first, such as can be removed by Solvent degreasing, alkalescence
Oily technique carries out oil removal treatment and with water rinsed clean, and bulge-structure then is immersed in into 5~30 points of impregnation in inorganic agent
Clock (time for implementing impregnation in sample and comparative sample is 10 minutes), then take out and be heating and curing that (temperature is for example
For 120 DEG C) 10 minutes.The hot sticky tie region of the circular backboard of bit selecting disk is carried out into heating melting afterwards (can use selective laser
Heating), and the bulge-structure after processing is disposed thereon and then applies 0.1~0.5MPa and (implements sample and comparative sample
The middle pressure used is 0.15MPa) pressure carry out hot adhesion.Used by table 1 below shows each sample and comparative sample
The composition and content of inorganic agent (solvent is the aqueous solution that ethanol content is 5wt%).
Table 1 (contained component content, g/L, and pH value in per L inorganic agents)
Respectively using circular backboard made of polycarbonate resin and epoxy resin as the example of engineering plastics, each reality is tested
The heat adhesiveness for applying sample and comparative sample can be (each to implement sample or comparative sample tests measurement its cutting at room temperature of averaging for 5 times
Shearing stress and peel strength), as a result respectively as shown in table 2 (polycarbonate resin) and table 3 (epoxy resin).
Table 2
Table 3
Each reality will be tried as the example of engineering plastics using circular backboard made of polycarbonate resin and epoxy resin respectively
It is 60 DEG C that sample and comparative sample, which are applied, in temperature, after placing 10d burin-in process in the insulating box that humidity is 50RH, then tests each reality
The heat adhesiveness for applying sample and comparative sample can be (each to implement sample or comparative sample tests measurement its cutting at room temperature of averaging for 5 times
Shearing stress and peel strength), as a result respectively as shown in table 4 (polycarbonate resin) and table 5 (epoxy resin).
Table 4
Table 5
For the multifrequency electrical tilt antenna of the present invention, engaged simultaneously with the first output shaft 10 by splined shaft 9 by the first motor 1
First output shaft 10 is driven to drive the second output shaft 11 being engaged with to rotate, and the 3rd output shaft 11 engages the
The synchronous axial system of two output shaft 12, and the change of corresponding phase shifter phase is realized in the rotation output of the 3rd output shaft 12, from
And the angle of radiation of antenna can be changed.When needing to be adjusted the phase of other phase shifters, pass through the first motor 1 and choosing
The synchronous rotary of position disk 7 and when rotating to the number of turns of setting, can cause bit selecting portion to match somebody with somebody with the second output shaft disengaging before
Close, the restoring force that now back-moving spring 13 provides can cause the second output shaft to reset, so as to terminate the first foregoing output shaft
With the cooperation of the second output shaft, the second output shaft that bit selecting disk can select to be engaged with the phase shifter for needing to adjust is rotated again
It is engaged, then starts the first motor and carry out phase adjusted, to change the angle of radiation of its antenna.
For the ordinary skill in the art, simply the present invention is exemplarily described for specific embodiment,
Obviously present invention specific implementation is not subject to the restrictions described above, and is entered as long as employing the inventive concept and technical scheme of the present invention
The improvement of capable various unsubstantialities, or it is not improved by the present invention design and technical scheme directly apply to other occasions
, within protection scope of the present invention.
Claims (10)
- A kind of 1. RCU transmission mechanisms built in multifrequency electrical tilt antenna, it is characterised in that including：First motor, the second motor, bit selecting Disk, the first output shaft, at least two second output shafts, and at least two the 3rd output shafts；The bit selecting disk includes circle disk body, set Put the internal gear on the inside of the circle disk body and be arranged on the bit selecting portion at the circle disk body back side；Second output shaft is with institute State and be evenly distributed on around first output shaft centered on the first output shaft, second output shaft and the 3rd output shaft one One correspondence, and the second end of second output shaft and the first end of the 3rd output shaft are nibbled by the way that spline is separable Close；Second motor is engaged by the internal gear of gear shaft and bit selecting disk and the bit selecting portion can be driven to be exported with second The first end of axle coordinates second output shaft is engaged with the gear of the first output shaft and makes second output shaft the Two ends pass through spline engagement with the first end of corresponding 3rd output shaft；First motor passes through splined shaft and the first output shaft Engage and drive first output shaft to drive the second output shaft rotation being engaged with, and the 3rd output shaft engages the Two output shaft synchronous are rotated, and the change of phase shifter phase is realized in the rotation output of the 3rd output shaft.
- 2. RCU transmission mechanisms built in multifrequency electrical tilt antenna according to claim 1, it is characterised in that：3rd output Axle is thread spindle.
- 3. RCU transmission mechanisms built in multifrequency electrical tilt antenna according to claim 1, it is characterised in that：The built-in RCU is passed Motivation structure also includes shell, the first positioning housing, the second positioning housing and bearing；The bit selecting disk is arranged on the shell and institute State between the first positioning housing；First output shaft and the second output shaft are arranged on first positioning housing and the second positioning Between housing, back-moving spring is also arranged between the gear of second output shaft and second positioning housing；Described 3rd Output shaft is arranged between second positioning housing and the bearing；Wherein, first positioning housing and the second positioning shell Body respectively by being fixed parallel to the linking arm of axial direction with the shell, the splined shaft of first motor through the shell and First positioning housing engages with first output shaft；The gear shaft of second motor passes through the shell and the choosing The internal gear engagement of position disk；For the first end of second output shaft through the through hole of the described first positioning shell, described second is defeated Through hole of second end of shaft through the described second positioning shell.
- 4. RCU transmission mechanisms built in multifrequency electrical tilt antenna according to claim 1, it is characterised in that：First output Axle, the second output shaft and the 3rd output shaft are made up of engineering plastics.
- 5. RCU transmission mechanisms built in multifrequency electrical tilt antenna according to claim 1, it is characterised in that：The bit selecting disk Circle disk body, internal gear and circular backboard are integrally formed by engineering plastics.
- 6. RCU transmission mechanisms built in the multifrequency electrical tilt antenna according to claim 4 or 5, it is characterised in that：The engineering plastic Expect one kind in melmac, polycarbonate resin, polyphenylene sulfide, epoxy resin or modified epoxy.
- 7. RCU transmission mechanisms built in multifrequency electrical tilt antenna according to claim 5, it is characterised in that：The bit selecting portion is Bulge-structure with the curved surface being engaged with second output shaft, the bulge-structure hot adhesion is in the circular backboard On.
- 8. RCU transmission mechanisms built in multifrequency electrical tilt antenna according to claim 5, it is characterised in that：The bit selecting portion by Magnesium alloy is process.
- 9. RCU transmission mechanisms built in multifrequency electrical tilt antenna according to claim 8, it is characterised in that：The bit selecting portion with Shear strength between the circular backboard is more than 8.0MPa, and peel strength is more than 2.0N/mm.
- 10. a kind of multifrequency electrical tilt antenna, including transmission mechanism and phase shifter, it is characterised in that：The transmission mechanism is selected from right It is required that RCU transmission mechanisms built in multifrequency electrical tilt antenna described in any one of 1-9；The phase shifter passes through bindiny mechanism and described the Three output axis connections, and by rotating the corresponding phase for adjusting the phase shifter of output on the 3rd output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595373.1A CN107394403B (en) | 2017-07-20 | 2017-07-20 | RCU transmission mechanisms built in multifrequency electrical tilt antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595373.1A CN107394403B (en) | 2017-07-20 | 2017-07-20 | RCU transmission mechanisms built in multifrequency electrical tilt antenna |
Publications (2)
| Publication Number | Publication Date |
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| CN107394403A true CN107394403A (en) | 2017-11-24 |
| CN107394403B CN107394403B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710595373.1A Active CN107394403B (en) | 2017-07-20 | 2017-07-20 | RCU transmission mechanisms built in multifrequency electrical tilt antenna |
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| CN109216925A (en) * | 2018-10-11 | 2019-01-15 | 广东盛路通信科技股份有限公司 | The transmission device that antenna lower decline angle is adjusted |
| CN109244672A (en) * | 2018-11-06 | 2019-01-18 | 深圳市鑫龙通信技术有限公司 | A kind of antenna gearshift |
| CN109611515A (en) * | 2018-12-28 | 2019-04-12 | 广东司南通信科技有限公司 | RCU transmission mechanism and application built in multifrequency electrical tilt antenna |
| CN109659697A (en) * | 2018-12-28 | 2019-04-19 | 广东司南通信科技有限公司 | RCU transmission mechanism and its application built in a kind of multifrequency electrical tilt antenna |
| CN110600883A (en) * | 2019-09-17 | 2019-12-20 | 武汉虹信通信技术有限责任公司 | Phase shifter driving device and electrically tunable antenna |
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| CN108493614B (en) * | 2018-05-11 | 2023-11-10 | 京信通信技术(广州)有限公司 | Multi-path transmission device and electric tuning antenna transmission device |
| CN109216925A (en) * | 2018-10-11 | 2019-01-15 | 广东盛路通信科技股份有限公司 | The transmission device that antenna lower decline angle is adjusted |
| CN109216925B (en) * | 2018-10-11 | 2023-08-04 | 广东盛路通信科技股份有限公司 | Transmission device for electric downtilt angle adjustment of antenna |
| CN109244672A (en) * | 2018-11-06 | 2019-01-18 | 深圳市鑫龙通信技术有限公司 | A kind of antenna gearshift |
| CN109659697A (en) * | 2018-12-28 | 2019-04-19 | 广东司南通信科技有限公司 | RCU transmission mechanism and its application built in a kind of multifrequency electrical tilt antenna |
| CN109659697B (en) * | 2018-12-28 | 2023-09-08 | 广州司南技术有限公司 | Built-in RCU transmission mechanism of multi-frequency electrically-tunable antenna and application thereof |
| CN109611515A (en) * | 2018-12-28 | 2019-04-12 | 广东司南通信科技有限公司 | RCU transmission mechanism and application built in multifrequency electrical tilt antenna |
| CN110600883A (en) * | 2019-09-17 | 2019-12-20 | 武汉虹信通信技术有限责任公司 | Phase shifter driving device and electrically tunable antenna |
| CN110600883B (en) * | 2019-09-17 | 2021-03-12 | 武汉虹信通信技术有限责任公司 | Phase shifter driving device and electrically tunable antenna |
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| CN107394403B (en) | 2018-08-28 |
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