WO2021158075A1 - 안테나 장치 - Google Patents
안테나 장치 Download PDFInfo
- Publication number
- WO2021158075A1 WO2021158075A1 PCT/KR2021/001578 KR2021001578W WO2021158075A1 WO 2021158075 A1 WO2021158075 A1 WO 2021158075A1 KR 2021001578 W KR2021001578 W KR 2021001578W WO 2021158075 A1 WO2021158075 A1 WO 2021158075A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- worm wheel
- tilt
- coupled
- tilt arm
- unit
- Prior art date
- 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.)
- Ceased
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Classifications
-
- 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
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/125—Means for positioning
- H01Q1/1264—Adjusting different parts or elements of an aerial unit
-
- 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
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
- H01Q3/06—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation over a restricted angle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/32—Vertical arrangement of element
- H01Q9/34—Mast, tower, or like self-supporting or stay-supported antennas
Definitions
- the present invention relates to an antenna device (ANTENNA APPARATUS), and more particularly, to a multiple input/output antenna device used in a wireless communication technology such as a mobile communication terminal.
- ANTENNA APPARATUS an antenna device
- a multiple input/output antenna device used in a wireless communication technology such as a mobile communication terminal.
- a wireless communication technology for example, multiple input multiple output (MIMO) technology
- MIMO multiple input multiple output
- the transmitter transmits different data through each transmit antenna
- the receiver is a spatial multiplexing technique that classifies transmitted data through appropriate signal processing.
- the channel capacity increases, allowing more data to be transmitted. For example, if the number of antennas is increased to 10, about 10 times the channel capacity is secured using the same frequency band compared to the current single antenna system.
- Massive MIMO technology Up to 8 antennas are used in 4G LTE-Advanced, and products equipped with 64 or 128 antennas are being developed in the pre-5G stage, and base station equipment with a much larger number of antennas is expected to be used in 5G. , this is called Massive MIMO technology. While the current cell operation is 2-Dimensional, when Massive MIMO technology is introduced, 3D-Beamforming becomes possible, so it is also called FD-MIMO (Full Dimension).
- the base station antenna needs to change the direction of the signal transmitted and received from the antenna by tilting the antenna in order to eliminate the shadow area.
- an antenna device includes a pole, an antenna unit, a lower link unit, and a tilt driving unit.
- the lower link unit rotatably couples the lower portion of the antenna unit to the pole in the vertical direction.
- the tilt drive unit couples the top of the antenna unit to the pole.
- the tilt driving unit tilts the upper portion of the antenna unit by rotating it based on the rotation center of the lower link unit.
- the tilt driving unit includes a tilt motor, a worm gear, a first tilt arm, a second tilt arm, a first worm wheel and a second worm wheel.
- the worm gear is rotated by the driving force of the tilt motor.
- the first tilt arm is coupled to the antenna unit.
- the second tilt arm is coupled to the pole.
- the first worm wheel is rotated by rotation of the worm gear to rotate the first tilt arm.
- the second worm wheel is rotated by the rotation of the worm gear to rotate the second tilt arm.
- a radio unit may be coupled to the antenna unit.
- the radio unit may be disposed in an inner space formed by the pole, the antenna unit, the lower link unit, and the tilt driving unit.
- the antenna device may further include an upper mounting bracket and a lower mounting clamp.
- the upper mounting bracket may be coupled to an upper portion of the antenna unit.
- a first coupling portion may be formed to protrude toward the pole on the upper mounting bracket.
- the upper mounting clamp may be coupled to an upper portion of the pole.
- a second coupling portion may be formed to protrude toward the antenna unit in the upper mounting clamp.
- a lower portion of the first tilt arm may be rotatably coupled to the first coupling part.
- An upper portion of the first tilt arm may be coupled to a rotation shaft of the first worm wheel.
- a lower portion of the second tilt arm may be rotatably coupled to the second coupling unit.
- An upper portion of the second tilt arm may be coupled to a rotation shaft of the second worm wheel.
- the first coupling part may be formed of a pair of first coupling parts spaced apart from each other in a lateral direction of the antenna unit.
- the second coupling part may be formed of a pair of second coupling parts spaced apart from each other laterally of the antenna unit.
- the first tilt arm may include a first tilt arm body, a first extension, and a second extension. Both lower portions of the first tilt arm body may be rotatably coupled to the pair of first coupling portions.
- the first extension portion may extend upwardly from an upper end of one side of the first tilt arm body.
- the first extension portion may be coupled to one end of a rotation shaft of the first worm wheel.
- the second extension portion may extend upwardly from an upper end of the other side of the second tilt arm body.
- the second extension portion may be coupled to the other end of the rotation shaft of the first worm wheel.
- the second tilt arm may include a second tilt arm body, a third extension, and a fourth extension. Both lower portions of the second tilt arm body may be rotatably coupled to the pair of second coupling portions.
- the third extension portion may extend upwardly from an upper end of one side of the second tilt arm body.
- the third extension portion may be coupled to one end of the rotation shaft of the second worm wheel.
- the fourth extension portion may extend upwardly from an upper end of the other side of the second tilt arm body.
- the fourth extension portion may be coupled to the other end of the rotation shaft of the second worm wheel.
- the antenna device may further include a tilt drive housing.
- the tilt driving housing may be disposed between the first extension part and the third extension part, and the second extension part and the fourth extension part.
- the tilt motor, the worm gear, the first worm wheel, and the second worm wheel may be accommodated in the tilt drive housing.
- One of the first extension part and the second extension part may be detachably fastened to the first tilt arm body.
- One of the third extension part and the fourth extension part may be detachably fastened to the second tilt arm body.
- the rotation shaft of the first worm wheel may include a first rotation shaft part and a second rotation shaft part.
- the first worm wheel may be coupled to an outer periphery of the first rotating shaft portion.
- An outer end of the first rotation shaft may be coupled to any one of the first extension and the second extension.
- the second rotation shaft portion may be integrally formed with the other one of the first extension portion and the second extension portion.
- the second rotation shaft portion may be fastened to an inner end of the first rotation shaft portion.
- a rotation shaft of the second worm wheel may include a third rotation shaft portion and a fourth rotation shaft portion.
- the second worm wheel may be coupled to an outer periphery of the third rotating shaft portion.
- An outer end of the third rotation shaft may be coupled to any one of the third extension and the fourth extension.
- the fourth rotation shaft part may be integrally formed with the other one of the third extension part and the fourth extension part.
- the fourth rotation shaft portion may be fastened to an inner end of the third rotation shaft portion.
- a first locking protrusion extending from the outside to the center may be formed on any one of the opposite surfaces of the inner end of the first rotating shaft and the inner end of the second rotating shaft.
- a first locking groove extending to the center in the outer direction may be formed in the other one of the opposite surfaces of the inner end of the first rotating shaft and the inner end of the second rotating shaft. The first locking protrusion may be inserted into the first locking groove.
- a second locking protrusion extending from the outside to the center may be formed on any one of the opposite surfaces of the inner end of the third rotating shaft and the inner end of the fourth rotating shaft.
- the other one of the opposite surfaces of the inner end of the third rotating shaft and the inner end of the fourth rotating shaft may have a second locking groove extending to the center in the outer direction. The second locking protrusion may be inserted into the second locking groove.
- a first stopper may protrude from opposite surfaces of the first tilt arm body and the second tilt arm body. Each of the first stoppers may be in contact with each other when the antenna unit is tilted to the minimum.
- a second stopper may be protruded from the motor driving housing.
- at least one of the first extension part and the second extension part may contact the second stopper.
- at least one of the third extension part and the fourth extension part may contact the second stopper.
- An internal open space may be formed in each of an upper portion of the first tilt arm body and an upper portion of the second tilt arm body.
- the inner open space may be formed such that opposing surfaces of the first tilt arm body and the second tilt arm body are opened.
- a first opening hole may be formed in each of a lower portion of the first tilt arm body and a lower portion of the second tilt arm body.
- the first opening hole may be formed to pass through the pole from the antenna unit.
- a second opening hole may be further formed in each of the lower side of the first tilt arm body and the lower side of the second tilt arm body.
- the second opening hole may be formed to communicate with the first opening hole.
- the lower link unit may include a lower mounting bracket and a lower mounting clamp.
- the lower mounting bracket may be coupled to a lower portion of the antenna unit.
- a third coupling portion may be formed to protrude toward the pole on the lower mounting bracket.
- the lower mounting clamp may be coupled to a lower portion of the pole.
- a fourth coupling portion may be formed to protrude toward the antenna unit in the lower mounting clamp.
- the third coupling part and the fourth coupling part may be rotatably coupled to each other in the vertical direction, and the lower link unit may be rotatably coupled in the vertical direction.
- the third coupling part may be formed of a pair of third coupling parts spaced apart from each other in a lateral direction of the antenna unit.
- the fourth coupling part may be formed of a pair of fourth coupling parts spaced apart from each other in a lateral direction of the antenna unit.
- the worm gear may be disposed between the first worm wheel and the second worm wheel.
- the worm gear may be rotated in a circumferential direction of the first worm wheel and the second worm wheel to adjust the clearance between the first worm wheel and the second worm wheel.
- a reduction gear may be further accommodated in the tilt drive housing.
- the reducer may amplify the output torque of the tilt motor and transmit it to the worm gear.
- the worm gear may be installed to protrude from the reduction gear. Since the reducer is rotatably installed in the tilt drive housing in the circumferential direction of the worm wheel and the second worm wheel, the worm gear may be rotatable in the circumferential direction of the first worm wheel and the second worm wheel.
- the first coupling portion of the upper mounting bracket may be vertically rotatably coupled to the first tilt arm.
- the second coupling portion of the upper mounting clamp may be vertically rotatably coupled to the second tilt arm.
- the antenna device according to the present invention may further include a steering unit and a clutch unit.
- the steering unit may be coupled to the pole.
- the steering unit may rotate the upper mounting clamp in a horizontal direction.
- the clutch unit may be coupled to the pawl to fix the lower mounting clamp.
- the clutch unit may be disengaged from the pole when the steering unit rotates the upper mounting clamp in the horizontal direction to be rotatable in the horizontal direction.
- An upper portion of the first tilt arm may be rotatably coupled to the first coupling part.
- a lower portion of the first tilt arm may be coupled to a rotation shaft of the first worm wheel.
- An upper portion of the second tilt arm may be rotatably coupled to the second coupling unit.
- a lower portion of the second tilt arm may be coupled to a rotation shaft of the second worm wheel.
- the antenna device may further include a plurality of shaft end caps.
- the plurality of shaft end caps may couple the first tilt arm to both ends of the rotation shaft of the first worm wheel through bolts, respectively.
- the plurality of shaft end caps may couple the second tilt arm to both ends of the rotation shaft of the second worm wheel through bolts, respectively.
- a bolt head receiving groove in which the head of each of the bolts is accommodated may be formed in the plurality of shaft end caps, respectively.
- An adhesive for fixing the head of each bolt may be filled in each of the bolt head receiving grooves.
- Each of the bolt head receiving groove and the head of each bolt may be formed in a polygonal shape.
- each bolt may be fixed to the rotation shaft of the first worm wheel or the rotation shaft of the second worm wheel through a screw fixing agent.
- the antenna device has an effect of securing an installation space for antenna-related parts by tilting the antenna unit, and also eliminating a shadow area of a signal transmitted and received from the antenna.
- the antenna device according to the present invention tilts the antenna unit using two worm wheels, there is an effect that the antenna unit can be quickly tilted compared to the case of tilting the antenna unit with one worm wheel.
- the antenna device when an external force such as wind acts on the outside of the antenna device, the external force is distributed to the two worm wheels. It also has the effect of improving structural stability.
- the first tilt arm is coupled to both ends of the rotation shaft of the first worm wheel through bolts, respectively
- the second tilt arm is coupled to both ends of the rotation shaft of the second worm wheel through bolts, respectively.
- a plurality of shaft end caps wherein the plurality of shaft end caps have bolt head receiving grooves for receiving the heads of the respective bolts, respectively, and the respective bolt head receiving grooves have the heads of the respective bolts. Since the adhesive for fixing the Since it is possible to fix the assembly position of the rotation shaft in the horizontal direction, it is possible to easily balance the operation of the first tilt arm and the second tilt arm.
- FIG. 1 is a perspective view showing an antenna device according to an embodiment of the present invention.
- FIG. 2 is a side view showing an antenna device according to an embodiment of the present invention.
- FIG. 3 is an exploded perspective view of FIG. 1;
- FIG. 4 is a view showing a state in which the radio unit is coupled to the antenna unit shown in FIG. 1;
- Figure 5 is a perspective view showing a first embodiment of the tilt drive unit shown in Figure 3;
- Figure 6 is an exploded perspective view of Figure 5;
- FIG. 7 is a cut-away perspective view of FIG. 5;
- Figure 8 is a side cross-sectional view showing the tilt drive unit shown in Figure 3;
- FIG. 9 is an exploded perspective view of one side showing the tilt drive unit shown in FIG. 3;
- FIG. 10 is an exploded perspective view of the other side showing the tilt drive unit shown in FIG. 3;
- FIG. 11 is a cross-sectional view schematically showing the inside of the housing body shown in FIG. 8;
- FIG. 12 is a cross-sectional view showing a second embodiment of the tilt drive unit shown in FIG. 3;
- FIG. 13 is a cross-sectional view showing a third embodiment of the tilt drive unit shown in FIG. 3;
- FIG. 14 is a cross-sectional view showing a fourth embodiment of the tilt drive unit shown in FIG. 3;
- FIG. 15 is a view showing an antenna device according to another embodiment of the present invention.
- FIG. 16 is a view showing an antenna device according to another embodiment of the present invention.
- FIG. 17 is a cut-away perspective view showing the tilt drive unit shown in FIG. 16;
- FIG. 18 is an exploded perspective view of one side showing the main part of the tilt driving unit shown in FIG. 17;
- FIG. 19 is an exploded perspective view of the other side showing a main part of the tilt driving unit shown in FIG.
- pole (pole) 20 antenna unit
- first coupling part 70 upper mounting clamp
- worm gear 436 first worm wheel
- 436S1, 436S2 axis of rotation of the first worm wheel 437: the second worm wheel
- 437S1, 437S2 rotation shaft of the second worm wheel 440: shaft end cap
- FIG. 1 is a perspective view showing an antenna device according to an embodiment of the present invention
- FIG. 2 is a side view showing an antenna device according to an embodiment of the present invention
- FIG. 3 is an exploded perspective view of FIG. 1
- FIG. 4 is the antenna shown in FIG. It is a diagram showing a state in which the radio unit is coupled to the unit.
- the antenna device may include a pole 10 , an antenna unit 20 , a lower link unit 30 and a tilt driving unit 40 . there is.
- the pole 10 may be formed in a vertical bar shape.
- the pole 10 may be formed in a bar shape having a circular cross-section.
- the pole 10 may support the configuration of the antenna device according to the embodiment of the present invention except for itself.
- the antenna unit 20 may be formed in a substantially rectangular cylindrical shape.
- a substrate on which an antenna element is mounted may be installed inside the antenna unit 20 .
- the lower link unit 30 may rotatably couple the lower portion of the antenna unit 20 to the pole 10 in the vertical direction.
- the tilt driving unit 40 may couple the upper portion of the antenna unit 20 to the pole 10 .
- the tilt driving unit 40 may tilt the upper portion of the antenna unit 20 by rotating it based on the rotation center of the lower link unit 30 .
- the tilt driving unit 40 may be formed in a downwardly folded shape when the antenna unit 20 is vertically disposed.
- the pole 10 may be disposed rearwardly spaced apart from the antenna unit 20 .
- the antenna unit 20 may be disposed to be spaced apart from the pole 10 in the front.
- the lower link unit 30 may be disposed to be spaced downward from the tilt driving unit 40 .
- the lower link unit 30 may connect between the pole 10 and the antenna unit 20 .
- the tilt driving unit 40 may be disposed to be spaced upward from the lower link unit 30 .
- the tilt driving unit 40 may connect between the pole 10 and the antenna unit 20 .
- a radio unit (RU) 50 may be coupled to the antenna unit 20 .
- the radio unit 50 may be disposed on the rear surface of the antenna unit 20 .
- the radio unit 50 may be disposed in the inner space S formed by the pole 10 , the antenna unit 20 , the lower link unit 30 , and the tilt driving unit 40 .
- the antenna unit 20 may transmit/receive a radio signal to/from the radio unit 50 .
- the radio unit 50 may process the radio signal received from the antenna unit 20 .
- the radio unit 50 is not necessarily installed in the inner space (S). That is, the radio unit 50 is not installed on the rear surface of the antenna unit 20 , and only the antenna unit 20 may be provided. Alternatively, other components related to the antenna may be installed instead of the lido unit 50 on the rear surface of the antenna unit 20 .
- the antenna device according to the embodiment of the present invention may be used by a communication service provider that installs a base station.
- the antenna device according to the embodiment of the present invention may be used by a network equipment company making the base station. .
- An upper mounting bracket 60 may be coupled to an upper portion of the antenna unit 20 .
- a first coupling portion 60A may be formed to protrude toward the pole 10 on the upper mounting bracket 60 .
- a first coupling portion 60A may be formed to protrude rearwardly to the upper mounting bracket 60 .
- the first coupling part 60A may be vertically rotatably coupled to the first tilt arm 410 (refer to FIGS. 5 and 6 ) of the tilt driving unit 40 .
- the first coupling portion 60A may be formed of a pair of first coupling portions 60A spaced apart from each other laterally of the antenna unit 20 .
- the upper mounting bracket 60 may include a front upper mounting bracket 61 and a rear upper mounting bracket 62 .
- the front upper mounting bracket 61 may be disposed in front of the rear upper mounting bracket 62 .
- the rear upper mounting bracket 62 may be disposed behind the front upper mounting bracket 61 .
- the front upper mounting bracket 61 and the rear upper mounting bracket 62 may be fastened to each other through a plurality of screws.
- the front upper mounting bracket 61 may be formed to be long left and right. Both ends of the front upper mounting bracket 61 may be bent forward and fastened to both sides of the antenna unit 20 through a plurality of screws, respectively.
- the rear upper mounting bracket 62 may be formed to be long left and right.
- the rear upper mounting bracket 62 may be formed to have a shorter left and right length than the front upper mounting bracket 61 .
- the pair of first coupling portions 60A may be respectively bent backward at both ends of the rear upper mounting bracket 62 to be formed.
- An upper mounting clamp 70 may be coupled to an upper portion of the pole 10 .
- a second coupling portion 70A may be formed to protrude toward the antenna unit 20 in the upper mounting clamp 70 .
- a second coupling portion 70A may be formed to protrude forward in the upper mounting clamp 70 .
- the second coupling part 70A may be vertically rotatably coupled to the second tilt arm 420 (refer to FIGS. 5 and 6 ) of the tilt driving unit 40 .
- the second coupling portion 70A may be formed of a pair of second coupling portions 70A spaced apart from each other laterally of the antenna unit 20 .
- the left and right lengths of the front part of the upper mounting clamp 70 may be formed to be the same as the left and right lengths of the rear upper mounting bracket 62 .
- the pair of second coupling portions 70A may be formed by bending forward, respectively, at both ends of the front portion of the upper mounting clamp 70 .
- the lower link unit 30 may include a lower mounting bracket 31 and a lower mounting clamp 32 .
- the lower mounting bracket 31 may be coupled to the lower portion of the antenna unit 20 .
- the lower mounting bracket 31 may have a third coupling portion 31A protruding toward the pole 10 .
- the lower mounting bracket 31 may have a third coupling portion 31A protruding toward the rear.
- the third coupling part 31A may be formed of a pair of third coupling parts 31A spaced apart from each other laterally of the antenna unit 20 .
- the lower mounting bracket 31 may include a front lower mounting bracket 33 and a rear lower mounting bracket 34 .
- the front lower mounting bracket 33 may be disposed in front of the rear lower mounting bracket 34 .
- the rear lower mounting bracket 34 may be disposed behind the front lower mounting bracket 33 .
- the front lower mounting bracket 33 and the rear lower mounting bracket 34 may be fastened to each other through a plurality of screws.
- the front lower mounting bracket 33 may be formed in the same shape and size as the front upper mounting bracket 61 . That is, the front lower mounting bracket 33 may be formed to be long left and right. Both ends of the front lower mounting bracket 33 may be bent forward and fastened to both sides of the antenna unit 20 through a plurality of screws, respectively.
- the rear lower mounting bracket 34 may be formed to be long left and right.
- the rear lower mounting bracket 34 may be formed to have a shorter left and right length than the front lower mounting bracket 33 .
- the pair of third coupling portions 31A may be formed to protrude rearward, respectively, from the rear surface of the rear lower mounting bracket 34 .
- a lower mounting clamp 32 may be coupled to a lower portion of the pole 10 .
- a fourth coupling portion 32A may be formed to protrude toward the antenna unit 20 in the lower mounting clamp 32 .
- a fourth coupling portion 32A may be formed to protrude rearwardly to the lower mounting clamp 32 .
- the fourth coupling portion 32A may be formed of a pair of fourth coupling portions 32A spaced apart from each other laterally of the antenna unit 20 .
- the pair of fourth coupling portions 32A may be respectively bent forward at both ends of the front portion of the lower mounting clamp 32 .
- the third coupling part 31A and the fourth coupling part 32A are rotatably coupled to each other in the vertical direction, and the lower link unit 30 may be rotatably coupled in the vertical direction.
- each of the pair of third coupling portions 31A may have a first hinge hole passing in the left and right directions
- each of the pair of fourth coupling portions 32A may have a first hinge hole in each of the pair of fourth coupling portions 32A.
- the first hinge protrusions are respectively inserted and rotatably disposed with respect to each of the first hinge holes, so that the lower link unit 30 may be rotatably coupled in the vertical direction.
- Each of the first hinge holes and each of the first hinge protrusions may be a rotation center of the lower link unit 30 .
- the first coupling part 60A, the second coupling part 70A, the third coupling part 31A, and the fourth coupling part 32A may be formed in a plate shape.
- tilt driving unit 40 will be described in detail.
- FIG. 5 is a perspective view showing a first embodiment of the tilt drive unit shown in Figure 3
- Figure 6 is an exploded perspective view of Figure 5
- Figure 7 is a cutaway perspective view of Figure 5
- Figure 8 is the tilt drive unit shown in Figure 3
- 9 is an exploded perspective view of one side showing the tilt driving unit shown in FIG. 3
- FIG. 10 is an exploded perspective view of the other side showing the tilt driving unit shown in FIG. 3 .
- the tilt drive unit 40 may include a first tilt arm 410 , a second tilt arm 420 and a tilt drive unit 430 .
- the first tilt arm 410 may be coupled to the antenna unit 20 . Specifically, a lower portion of the first tilt arm 410 may be rotatably coupled to the first coupling portion 60A of the upper mounting bracket 60 .
- second hinge protrusions 411A may be formed on both lower sides of the first tilt arm 410 , and second hinge holes passing in the left and right directions are provided in each of the pair of first coupling portions 60A. can be formed.
- Each of the second hinge protrusions 411A is inserted into each of the second hinge holes to be rotatably disposed, so that the lower portion of the first tilt arm 410 may be rotatably coupled to the first coupling portion 60A. .
- the second tilt arm 420 may be coupled to the pole 10 . Specifically, the lower portion of the second tilt arm 420 may be rotatably coupled to the second coupling portion 70A of the upper mounting clamp 70 .
- third hinge protrusions 421A may be formed on both lower sides of the second tilt arm 420 , and third hinge holes passing in the left and right directions are provided in each of the pair of second coupling parts 70A. can be formed.
- Each of the third hinge protrusions 421A is inserted into each of the third hinge holes to be rotatably disposed, so that the lower portion of the second tilt arm 420 may be rotatably coupled to the second coupling portion 70A. .
- the tilt drive unit 430 may include tilt drive housings 431 and 432 , a tilt motor 433 , a reducer 434 , a worm gear 435 , a first worm wheel 436 , and a second worm wheel 437 .
- the tilt driving housings 431 and 432 may form the exterior of the tilt driving unit 430 .
- a tilt motor 433 , a reducer 434 , a worm gear 435 , a first worm wheel 436 , and a second worm wheel 437 may be accommodated in the tilt drive housings 431 and 432 .
- the tilt drive housings 431 and 432 include a housing body 431 having an internal space in which the tilt motor 433, the reducer 434, the worm gear 435, the first worm wheel 436 and the second worm wheel 437 are accommodated. ) and a housing cover 432 covering the opened side of the housing body 431 .
- the tilt motor 433 may be a driving source for tilting the antenna unit 20 .
- the reducer 434 may amplify and output the driving force input from the tilt motor 433 .
- a plurality of gears may be meshed with each other inside the reducer 434 .
- the plurality of gears may have different rotation ratios.
- the reducer 434 receives the rotational speed of the rotational shaft of the tilt motor 433 and reduces the rotational speed output through the plurality of gears, thereby outputting a torque higher than the rotational force of the rotational shaft of the tilt motor 433. Even this small motor can make it possible to tilt the antenna unit 20 . That is, the reducer 434 may amplify the output torque of the tilt motor 433 and transmit it to the worm gear 435 .
- the worm gear 435 may be rotated by the driving force of the tilt motor 433 .
- the worm gear 435 may be vertically disposed between the first worm wheel 436 and the second worm wheel 437 .
- the worm gear 435 may mesh with the first worm wheel 436 and the second worm wheel 437 .
- the first worm wheel 436 may be rotated by the rotation of the worm gear 435 to rotate the first tilt arm 410 .
- the second worm wheel 436 may be rotated by the rotation of the worm gear 435 to rotate the second tilt arm 420 .
- An upper portion of the first tilt arm 410 may be coupled to the rotation shafts 436S1 and 436S2 of the first worm wheel 436 .
- An upper portion of the second tilt arm 420 may be coupled to the rotation shafts 437S1 and 437S2 of the second worm wheel 437 .
- the first tilt arm 410 may include a first tilt arm body 411 , a first extension part 412 , and a second extension part 413 .
- Both lower portions of the first tilt arm body 411 may be rotatably coupled to a pair of first coupling portions 60A formed in the upper mounting bracket 60 . That is, second hinge protrusions 411A respectively inserted into the second hinge holes formed in the pair of first coupling portions 60A, respectively, and rotatably disposed on both sides of the lower portion of the first tilt arm body 411 are provided. can be formed.
- the first extension portion 412 may extend upwardly from an upper end of one side of the first tilt arm body 411 .
- An upper portion of the first extension 412 may be coupled to one end of the rotation shafts 436S1 and 436S2 of the first worm wheel 436 .
- An upper portion of the second extension portion 413 may extend upward from the upper end of the other side of the second tilt arm body 411 .
- the second extension 413 may be coupled to the other end of the rotation shaft of the first worm wheels 436S1 and 436S2.
- the second tilt arm 420 may include a second tilt arm body 421 , a third extension 422 , and a fourth extension 423 .
- Both lower portions of the second tilt arm body 421 may be rotatably coupled to a pair of second coupling portions 70A formed in the upper mounting clamp 70 . That is, the third hinge protrusions 421A are respectively inserted into the third hinge holes respectively formed in the pair of second coupling portions 70A on both lower sides of the second tilt arm body 421 to be rotatably disposed. can be formed.
- the third extension 422 may extend upwardly from an upper end of one side of the second tilt arm body 421 .
- the third extension 422 may be coupled to the rotation shafts 437S1 and 437S2 of the second worm wheel 437 .
- the fourth extension 423 may extend upward from the upper end of the other side of the second tilt arm body 421 .
- the fourth extension 423 may be coupled to the rotation shafts 437S1 and 437S2 of the second worm wheel 437 .
- the first extension part 412 , the second extension part 413 , the third extension part 422 , and the fourth extension part 423 may be formed in a plate shape.
- the tilt driving housings 431 and 432 may be disposed between the first extension part 412 and the third extension part 422 , and the second extension part 413 and the fourth extension part 423 . Accordingly, since the vertical length of the tilt driving unit 40 is shortened, the size of the inner space S formed by the pole 10 , the antenna unit 20 , the lower link unit 30 and the tilt driving unit 40 is reduced. can be obtained as much as possible.
- first extension part 412 and the second extension part 413 may be detachably fastened to the first tilt arm body 411 .
- first extension 412 is detachably fastened to the first tilt arm body 411 through a plurality of screws 5 .
- one of the third extension part 422 and the fourth extension part 423 may be detachably fastened to the second tilt arm body 421 .
- the third extension 422 is detachably fastened to the second tilt arm body 421 through a plurality of screws 6 . Thanks to this separable structure, the tilt drive unit 40 can be quickly assembled, and even when the tilt drive unit 430 is malfunctioning, it can be repaired quickly.
- the rotation shafts 436S1 and 436S2 of the first worm wheel 436 may include a first rotation shaft part 436S1 and a second rotation shaft part 436S2 .
- a first worm wheel 436 may be coupled to the outer periphery of the first rotation shaft portion 436S1.
- the outer end of the first rotation shaft portion 436S1 may be coupled to any one of the first extension portion 412 and the second extension portion 413 .
- the outer end of the first rotation shaft portion 436S1 is fastened to the second extension portion 413 .
- the screw 1 is inserted into the hole formed in the upper portion of the second extension portion 413 from the outside of the second extension portion 413 , it passes through the hole formed in the housing cover 432 , and the first rotation shaft portion It can be fastened by being inserted into the groove formed at the outer end of the 436S1.
- the second rotation shaft portion 436S2 may be integrally formed with the other one of the first extension portion 412 and the second extension portion 413 .
- the second rotation shaft portion 436S2 is integrally formed with the first extension portion 412 .
- the second rotation shaft part 436S2 may be fastened to an inner end of the first rotation shaft part 436S1 . Specifically, after the bolt 3 is inserted into the hole formed on the upper portion of the first extension portion 412 from the outside of the first extension portion 412 , the hole formed through the center of the second rotation shaft portion 436S2 in the axial direction. Through the , it can be inserted and fastened into a groove formed in the axial direction at the center of the inner end of the first rotating shaft portion (436S1).
- the rotation shafts 437S1 and 437S2 of the second worm wheel 437 may include a third rotation shaft part 437S1 and a fourth rotation shaft part 437S2.
- a second worm wheel 437 may be coupled to the outer periphery of the third rotation shaft portion 437S1.
- An outer end of the third rotation shaft portion 437S1 may be coupled to any one of the third extension portion 422 and the fourth extension portion 423 .
- the outer end of the third rotation shaft portion 437S1 is coupled to the fourth extension portion 423 .
- the screw 2 is inserted into the hole formed on the upper portion of the fourth extension portion 423 from the outside of the fourth extension portion 423 , it passes through the hole formed on the housing cover 432 , and the third rotation shaft portion It can be fastened by being inserted into the groove formed at the outer end of the 437S1.
- the fourth rotation shaft portion 437S2 may be integrally formed with the other one of the third extension portion 422 and the fourth extension portion 423 .
- the fourth rotation shaft portion 437S2 is integrally formed with the third extension portion 422 .
- the fourth rotation shaft portion 437S2 may be fastened to an inner end of the third rotation shaft portion 437S1 . Specifically, after the bolt 4 is inserted into the hole formed on the upper portion of the third extension portion 422 from the outside of the third extension portion 422 , the hole formed through the center of the fourth rotation shaft portion 437S2 in the axial direction. Through the , it may be inserted into a groove formed in the axial direction at the center of the inner end of the third rotation shaft portion 437S1 and fastened.
- a first locking protrusion 436P extending from the outside to the center may be formed.
- a first engaging groove 436F extending to the center in the outer direction may be formed.
- the first locking projection (436P) is formed on the opposite surface of the inner end of the second rotation shaft portion (436S2)
- the first locking groove (436F) is the opposite surface of the inner end of the first rotation shaft portion (436S1) is formed in
- the first locking protrusion 436P is spaced apart from each other in the circumferential direction of the rotation shafts 436S1 and 436S2 of the first worm wheel 436 and may be formed of a plurality of first locking projections 436P. 1 is formed with a locking projection (436P).
- the first locking groove 436F may be spaced apart from each other in the circumferential direction of the rotation shafts 436S1 and 436S2 of the first worm wheel 436 to form a plurality of first locking grooves 436F, and in this embodiment, 3 It is formed with the first locking groove 436F.
- the first locking protrusion 436P and the first locking groove 436F may be formed in the same number.
- the first locking protrusion 436P may be inserted into the first locking groove 436F.
- the first locking protrusion 436P is inserted into the first locking groove 436F, so that the first The rotational force of the rotating shaft part 436S1 may be transmitted to the second rotating shaft part 436S2 without being lost.
- a second locking protrusion 437P extending from the outside to the center may be formed on any one of the opposite surfaces of the inner end of the third rotation shaft portion 437S1 and the inner end of the fourth rotation shaft portion 437S2 .
- a second locking groove 437F extending to the center in the outer direction may be formed.
- the second locking protrusion 437P is formed on the opposite surface of the inner end of the fourth rotation shaft portion 437S2
- the second locking groove 437F is the opposite surface of the inner end of the third rotation shaft portion 437S1.
- the second locking protrusion 437P is spaced apart from each other in the circumferential direction of the rotation shafts 437S1 and 437S2 of the second worm wheel 437 and may be formed of a plurality of second locking protrusions 437P. It is formed of two locking projections (437P).
- the second locking grooves 437F may be spaced apart from each other in the circumferential direction of the rotation shafts 437S1 and 437S2 of the second worm wheel 437 to form a plurality of second locking grooves 437F, and in this embodiment, 3 It is formed with two second locking grooves 437F.
- the second locking protrusion 437P and the second locking hole 437F may be formed in the same number.
- the second locking protrusion 437P may be inserted into the second locking groove 437F.
- the second locking protrusion 437P is inserted into the second locking groove 437F, so that the third The rotational force of the rotating shaft part 437S1 may be transmitted to the fourth rotating shaft part 437S2 without being lost.
- First stoppers 411S and 421S may protrude from opposite surfaces of the first tilt arm body 411 and the second tilt arm body 412 , respectively. Each of the first stoppers 411S and 421S may contact each other when the antenna unit 20 is tilted to the minimum. Accordingly, noise can be prevented by preventing the first tilt arm body 411 and the second tilt arm body 421 from collide with each other while retracting.
- the first stoppers 411S and 421S may include a 1-1 stopper 411S and a 1-2 stopper 421S.
- the 1-1 stopper 411S may be formed to protrude from the rear surface of the first tilt arm body 411 .
- the 1-1 stopper 411S may be formed of a plurality of 1-1 stoppers 411S formed to be spaced apart from each other in the left and right directions on the rear surface of the first tilt arm body 411 .
- the 1-2 stopper 421S may be formed to protrude from the front surface of the second tilt arm body 421 .
- the 1-2 stoppers 421S may be formed of a plurality of 1-2 stoppers 421S formed to be spaced apart from each other in the left and right directions on the front surface of the second tilt arm body 421 .
- a second stopper 432S may protrude from the outer surfaces of the motor driving housings 431 and 432 .
- the second stopper 432S may be formed to protrude from the outer surface of the housing cover 432 .
- the second stopper 432S may be formed in a circular shape.
- a motor support hole 433A into which one end of the tilt motor 433 is inserted and supported may be formed on the inner surface of the second stopper 432S.
- the antenna unit 20 When the antenna unit 20 is tilted to the maximum, at least one of the first extension 412 and the second extension 413 may contact the second stopper 432S. Also, when the antenna unit 20 is tilted to the maximum, at least one of the third extension 422 and the fourth extension 423 may contact the second stopper 432S. In the present embodiment, when the antenna unit 20 is tilted to the maximum, the second extension 413 and the fourth extension 423 contact the second stopper 432S. Accordingly, it is possible to prevent noise by preventing the first tilt arm body 411 and the second tilt arm body 421 from collide with each other as they spread apart.
- internal open spaces 411D and 421D may be formed in the upper portion of the first tilt arm body 411 and the upper portion of the second tilt arm body 421 , respectively.
- the internal open spaces 411D and 421D may be formed such that opposite surfaces of the first tilt arm body 411 and the second tilt arm body 421 are opened. Since the internal open spaces 411D and 421D are formed, the weight of the first tilt arm 410 and the second tilt arm 420 can be reduced.
- first opening holes 411B and 421B may be formed in a lower portion of the first tilt arm body 411 and a lower portion of the second tilt arm body 421 , respectively.
- the first opening holes 411B and 421B may be formed to pass from the antenna unit 20 to the pole 10 .
- the first opening holes 411B and 421B may be formed to pass through in the front-rear direction. Since the first opening holes 411B and 421B are formed, the weight of the first tilt arm 410 and the second tilt arm 420 can be reduced.
- the internal open spaces 411D and 421D may be formed on the upper side with respect to the first stoppers 411S and 421S, and the first opening holes 411B and 421B may be formed on the lower side with respect to the first stoppers 411S and 421S. can be formed.
- second opening holes 411C and 421C may be further formed on the lower side of the first tilt arm body 411 and the lower side of the second tilt arm body 421 , respectively.
- the second opening holes 411C and 421C may be formed to communicate with the first opening holes 411B and 421B.
- the second opening holes 411C and 421C may extend downward from the bottom surface of the first opening holes 411B and 421B. Since the second opening holes 411C and 421C are formed, the weight of the first tilt arm 410 and the second tilt arm 420 can be reduced.
- first bearing 436B1 may be installed on the outer peripheral surface of the outer end of the first rotation shaft portion 436S1
- second bearing 436B2 may be installed on the outer peripheral surface of the inner end portion of the first rotation shaft portion 436S1.
- the first bearing 436B1 and the second bearing 436B2 may rotatably support the first rotation shaft portion 436S1 .
- a first bearing support portion 432B1 into which the first bearing 436B1 is inserted and supported may be formed on the inner surface of the housing cover 432 , and on the inner surface of the housing body 431 opposite to the housing cover 432 , A second bearing support portion 431B1 in which the second bearing 436B2 is inserted and supported may be formed.
- the second rotation shaft part 436S2 integrally formed with the first extension part 412 is fastened with the first rotation shaft part 436S1
- the second rotation shaft part 436S2 is attached to the housing body 431 with the second bearing support part ( After being inserted into a hole formed in communication with the inner side of the 431B1 and passing through the center of the second bearing 436B2 , it may be fastened to the inner end of the first rotating shaft portion 436S1 through the bolt 3 .
- the third bearing 437B1 may be installed on the outer peripheral surface of the outer end of the third rotation shaft portion 437S1
- the fourth bearing 437B2 may be installed on the outer peripheral surface of the inner end portion of the third rotation shaft portion 437S1.
- the third bearing 437B1 and the fourth bearing 437B2 may rotatably support the second rotation shaft portion 437S1 .
- a third bearing support portion 432B2 in which the third bearing 437B1 is inserted and supported may be formed on the inner surface of the housing cover 432 , and on the inner surface of the housing body 431 opposite to the housing cover 432 , A fourth bearing support portion 431B2 in which the fourth bearing 437B2 is inserted and supported may be formed.
- the fourth rotation shaft part 437S2 integrally formed with the third extension part 422 is fastened with the third rotation shaft part 437S1
- the fourth rotation shaft part 437S2 is attached to the housing body 431 with the fourth bearing support part ( After being inserted into a hole formed in communication with the inner side of the 431B2 and passing through the center of the fourth bearing 437B2 , it may be fastened to the inner end of the third rotating shaft portion 437S1 through the bolt 4 .
- FIG. 11 is a cross-sectional view schematically showing the inside of the housing body shown in FIG. 8 .
- the clearance between the worm gear 435 and the first worm wheel 436 and the clearance with the second worm wheel 437 may be adjusted to prevent backlash. Since the worm gear 435 is disposed between the first worm wheel 436 and the second worm wheel 437, the worm gear 435 is rotated in the circumferential direction of the worm wheels 436 and 437 to move toward the first worm wheel 436, or By moving to the 2 worm wheel 437 side, the play between the worm gear 435 and the first worm wheel 436 can be adjusted, and the play between the worm gear 435 and the second worm wheel 437 can be adjusted.
- the reducer 434 in which the worm gear 435 is installed to protrude downward, is rotatably installed in the housing body 431 in the circumferential direction of the worm wheels 436 and 437, so that as the reducer 434 is rotated
- the worm gear 435 may be rotated together with the reducer 434 to move toward the first worm wheel 436 or move toward the second worm wheel 437 .
- a motor for rotating the speed reducer 434 in the circumferential direction of the worm wheels 436 and 437 may be installed in the housing body 431 .
- FIG. 12 is a cross-sectional view illustrating a second embodiment of the tilt driving unit shown in FIG. 3 .
- the same reference numerals are assigned to those having the same functions as those of the above-described first embodiment, and detailed descriptions thereof will be omitted, and only different points will be described.
- the tilt driving unit 400 according to the second embodiment is different from the tilt driving unit 40 according to the first embodiment described above.
- the tilt drive unit 40 according to the first embodiment is provided with a worm gear 435 as one, and a first worm wheel 436 and a second worm wheel (436) between the first worm wheel 436 and the second worm wheel 437 ( 437), but the tilt driving unit 400 according to the second embodiment is provided with two worm gears 435A and 435B, and the worm gears 435A and 435B are a first worm gear 435A and a second worm gear ( 435B).
- the first worm gear 435A and the second worm gear 435B are installed to the speed reducer 434 to protrude in opposite directions.
- the first worm gear 435A rotates the first worm wheel 436 connected to the first tilt arm 410
- the second worm gear 435B is the second worm wheel 437 connected to the second tilt arm 420 . rotate the
- FIG. 13 is a cross-sectional view illustrating a third embodiment of the tilt driving unit shown in FIG. 3 .
- the same reference numerals are assigned to those having the same functions as those of the above-described first embodiment, and detailed descriptions thereof will be omitted, and only different points will be described.
- the tilt driving unit 4000 according to the third embodiment is different from the tilt driving unit 40 according to the first embodiment described above.
- the first worm wheel 436 is connected to the first tilt arm 410 and the rotation shafts 436S1 and 436S2 to rotate the first tilt arm 410 .
- the second worm wheel 437 is connected to the second tilt arm 420 and the rotation shafts 437S1 and 437S2 to rotate the second tilt arm 420, but the tilt drive unit 4000 according to the third embodiment ) is further provided with a first pinion gear PG1 and a second pinion gear PG2 as compared to the tilt drive unit 40 according to the first embodiment, and the first pinion gear PG1 is the first tilt arm 410 ), and the second pinion gear (PG2) is connected to the second tilt arm 420, so that the first worm wheel 436 is meshed with the first pinion gear (PG1) through the first pinion gear (PG1).
- the tilt arm 410 is rotated, and the second worm wheel 437 is meshed with the second pinion gear PG2 to rotate the second tilt arm 420 through the second
- FIG. 14 is a cross-sectional view illustrating a fourth embodiment of the tilt driving unit shown in FIG. 3 .
- the same reference numerals are assigned to those having the same functions as those of the above-described first embodiment, and detailed descriptions thereof will be omitted, and only different points will be described.
- the tilt driving unit 40000 according to the fourth embodiment is different from the tilt driving unit 40 according to the first embodiment described above.
- the worm gear 435 is disposed between the first worm wheel 436 and the second worm gear 437, and the first worm wheel 436 and the second worm wheel ( 437 , but in the tilt driving unit 40000 according to the fourth embodiment, the worm gear 435 is disposed on one side of the second worm wheel 437 to mesh with the second worm wheel 437 .
- the worm gear 435 may be disposed on one side of the first worm wheel 436 to mesh with the first worm wheel 436 . That is, the worm gear 435 may be disposed on one side of any one of the first worm wheel 436 and the second worm wheel 437 to mesh with any one of the worm wheels.
- the first worm wheel 436 and the second worm wheel 437 may mesh with each other.
- FIG. 15 is a diagram illustrating an antenna device according to another embodiment of the present invention.
- the same reference numerals are given to the same reference numerals as those of the antenna device of the above-described embodiment, and detailed description thereof will be omitted, and only different points will be described.
- the antenna device according to another embodiment of the present invention is different from the antenna device of the above-described embodiment.
- the antenna device of this embodiment further includes a steering unit 80 and a clutch unit 90 as compared to the antenna device of the above-described embodiment.
- the upper mounting clamp 70 is not directly installed on the pole 10
- the steering unit 80 is installed and fixed on the pole 10
- the upper mounting clamp 70 is attached to the steering unit 80 . It is rotatably coupled in the horizontal direction.
- the steering unit 80 may rotate the upper mounting clamp 70 in a horizontal direction.
- a hole 81 into which a vertical axis formed in the upper mounting clamp 70 is inserted is formed in the steering unit 80 .
- the vertical shaft may be inserted into the hole 81 to be coupled to the shaft formed inside the steering unit 80 .
- a motor for rotating the vertical axis may be installed inside the steering unit 80 .
- the lower mounting clamp 32 is not directly installed on the pawl 10 , but is fixed to the pawl 10 through the clutch unit 90 .
- the clutch unit 90 may be coupled to the pawl 10 to fix the lower mounting clamp 32 .
- the clutch unit 90 may be disengaged from the pawl 10 to be rotatable in the horizontal direction.
- the clutch unit 90 may include two parts surrounding the periphery of the pawl 10 , and when electricity is applied to the clutch unit 90 , the two parts spread apart so that the lower mounting clamp 32 is connected to the pawl 10 . ) to be loosely coupled to the lower mounting clamp 32 is rotatable in the circumferential direction of the pole 10 .
- the two parts tightly wrap the circumference of the pawl 10 , so that the lower mounting clamp 32 does not rotate in the circumferential direction of the pawl 10 .
- the steering unit 80 rotates the vertical axis to horizontally position the upper mounting clamp 70 .
- the position of the antenna unit 20 may be adjusted while rotating in the circumferential direction of the pole 10 .
- FIG. 16 is a diagram illustrating an antenna device according to another embodiment of the present invention.
- the same reference numerals are used for the same elements as those of the above-described embodiment with reference to FIGS. 1 to 11 , and detailed description thereof will be omitted, and only different points will be described.
- the antenna device according to another embodiment of the present invention is different from the antenna device of the embodiment described above with reference to FIGS. 1 to 11 .
- the tilt driving unit 40 is formed in a shape folded downward when the antenna unit 20 is vertically disposed, but in the antenna device of this embodiment, the tilt driving unit 40 is the antenna unit. (20) may be formed in an upwardly folded shape when in a vertically disposed state.
- the upper portion of the first tilt arm 410 may be rotatably coupled to the first coupling portion 60A of the upper mounting bracket 60 , and the lower portion of the first tilt arm 410 may be 1 It may be coupled to the rotation shaft of the worm wheel (436).
- the upper portion of the second tilt arm 420 may be rotatably coupled to the second coupling portion 70A of the upper mounting clamp 70 , and the lower portion of the second tilt arm 420 may be 2 It may be coupled to the rotation shaft of the worm wheel (437).
- FIG. 17 is a cut-away perspective view showing the tilt driving unit shown in FIG. 16
- FIG. 18 is an exploded perspective view showing a main part of the tilt driving unit shown in FIG. 17
- FIG. 19 is a main part of the tilt driving unit shown in FIG. This is an exploded perspective view of the other side.
- shaft end caps 440 may be installed at both ends of the rotation shaft 437S of the second worm wheel 437 , respectively.
- the shaft end cap 440 is provided with a plurality of shaft end caps 440 , and may be respectively installed at both ends of the rotation shaft of the first worm wheel 436 .
- a total of four shaft end caps 440 are provided, two shaft end caps 440 are installed one at both ends of the rotation shaft of the first worm wheel 436, and the other two shaft end caps 440 are provided.
- One may be installed at both ends of the rotation shaft (437S) of the second worm wheel (437).
- the plurality of shaft end caps 440 may couple the second tilt arm 420 to both ends of the rotation shaft 437S of the second worm wheel 437 through bolts 450 , respectively.
- the plurality of shaft end caps 440 may couple the first tilt arm 410 to both ends of the rotation shaft of the first worm wheel 436 through bolts, respectively.
- An insertion part 441 inserted into the inside of the tilt driving housing after penetrating the first tilt arm 410 or the second tilt arm 420 may protrude from the inner surface of the plurality of shaft end caps 440 .
- An insertion groove 442 into which one end of the rotation shaft of the first worm wheel 436 or one end of the rotation shaft 437S of the second worm wheel 437 is inserted may be formed in the insertion part 441 .
- the plurality of shaft end caps 440 may be fastened to the first tilt arm 410 or the second tilt arm 420 through a plurality of screws, and the insertion part 441 may be rotatable with respect to the tilt drive housing. there is. Therefore, when the rotation shaft 437S of the first worm wheel 436 or the rotation shaft 437S of the second worm wheel 437 is rotated, the plurality of shaft end caps 440 are the rotation shafts of the first worm wheel 436 or the second worm wheel 437 ) may be rotated together with the rotation shaft 437S, and at the same time, the first tilt arm 410 or the second tilt arm 420 may be rotated.
- An O-ring 460 may be installed on the outer circumferential surface of the insertion part 441 .
- the O-ring 460 may be disposed in the tilt drive housing so that the insert 441 does not easily fall out of the tilt drive housing within the tilt drive housing, and the tilt drive housing from the outside of the tilt drive housing It is possible to prevent foreign substances from entering the inside of the
- the rotation shaft of the first worm wheel 436 is provided with two rotation shaft parts 436S1 and 436S2
- the rotation shaft of the second worm wheel 437 also includes two rotation shaft parts ( 437S1, 437S2).
- the two rotation shaft portions 436S1 and 436S2 are engaged by a locking protrusion 436P and a locking groove 436F
- the two rotation shaft portions 437S1 and 437S2. is engaged by a locking projection (437P) and a locking groove (437F).
- the axial surfaces of both ends of the rotation shaft of the first worm wheel 436 and the axial surfaces of both ends of the rotation shaft 437S of the second worm wheel 437 are formed in a flat plane without protrusions or grooves. may be, and may be formed as a flat surface in which no protrusions or grooves are formed in the axial direction in the insertion groove 442 . Accordingly, both ends of the rotation shaft of the first worm wheel 436 and both ends of the rotation shaft 437S of the second worm wheel 437 are inserted into the insertion groove 442 of the insertion part 441 formed in each shaft end cap 440 . Since it can slide finely in the horizontal direction at there is.
- each bolt 450 is firmly fixed.
- the plurality of shaft end caps 440 may have bolt head receiving grooves 443 in which the heads 451 of each bolt 450 are accommodated, respectively, and in each of the bolt head receiving grooves 443 , respectively.
- An adhesive 470 fixing the head 451 of the bolt 450 may be filled.
- the adhesive 470 is an epoxy adhesive, but is not limited to an epoxy adhesive. It is filled in the bolt head receiving groove 443 and can be fixed so that the head 451 of the bolt 450 is not rotated. Adhesives may be included.
- Each bolt head receiving groove 443 may be formed in the axial direction on the outer surface of the plurality of shaft end caps 440 , and the threaded portion 452 of each bolt 450 is each bolt head receiving groove 443 . ) through the communication hole 444 formed in communication with the insertion groove 442, and inserted into the hole formed in the axial direction at the end of the rotation shaft of the first worm wheel 436, coupled to the rotation shaft of the first worm wheel 436, or
- the second worm wheel 437 may be inserted into a hole 437SH formed in the axial direction at the end of the rotation shaft 437S and coupled to the rotation shaft 437S of the second worm wheel 437 .
- each bolt head receiving groove 443 and the head 451 of each bolt 450 may be formed in a hexagonal shape.
- each bolt head receiving groove 443 and the head 451 of each bolt 450 are formed in a hexagonal shape, each bolt head receiving groove 443 is filled with an adhesive 470 to each bolt 450 .
- the head 451 of the head 451 is fixed, compared to the case where the head 451 of each bolt head receiving groove 443 and each bolt 450 is formed in a circular shape, the head of each bolt 450 is 451 may not be easily rotated.
- each bolt head receiving groove 443 and the head 451 of each bolt 450 are not limited to being formed in a hexagonal shape, and may be formed in a polygonal shape.
- the threaded portion 452 of each bolt 450 is the rotational shaft of the first worm wheel 436 or the rotational shaft 437S of the second worm wheel 437 through a screw fixing agent.
- the screw fixing agent may be liquid or semi-liquid applied to the screw portion 452 of the bolt 450 , or may be a Teflon tape wound around the screw portion 452 of the bolt 450 .
- the antenna device tilts the antenna unit 20 to secure an installation space for the radio unit 50, which is an antenna-related component, and changes the direction of a signal transmitted and received from the antenna.
- the shadow area of the signal transmitted and received from the antenna can be eliminated.
- the antenna device according to the embodiment of the present invention tilts the antenna unit 20 using two worm wheels 436 and 437, compared to the case of tilting the antenna unit 20 with one worm wheel, The antenna unit 20 can be quickly tilted.
- the antenna device when an external force such as wind is applied to the outside of the antenna device, the external force is distributed to the two worm wheels 436 and 437, so that the antenna unit ( 20), it is possible to increase the structural stability of the gear parts 435, 436, and 437 compared to the case of tilting.
- the first tilt arm 410 is coupled to both ends of the rotation shaft of the first worm wheel 436 through bolts, respectively, and the second tilt arm 420 is connected to the second worm wheel
- a plurality of shaft end caps 440 are respectively coupled to both ends of the rotation shaft 437S of 437 through bolts 450, and the plurality of shaft end caps 440 have the heads of each bolt 450 (
- Each bolt head receiving groove 443 in which 451 is accommodated is formed, and the adhesive 470 for fixing the head 451 of each bolt 450 is filled in each of the bolt head receiving grooves 443 .
- the first worm wheel after solving the horizontal assembly tolerance between the rotation shaft of the first worm wheel 436 and the rotation shaft 437S of the second worm wheel 437 , the first worm wheel from the outside of the tilt drive unit 40 through the adhesive 470 . Since the horizontal assembly position of the rotation shaft 436 and the rotation shaft 437S of the second worm wheel 437 can be fixed, it is possible to easily balance the operation of the first tilt arm 410 and the second tilt arm 420 there is.
- the present invention provides an antenna device that can tilt an antenna unit to secure an installation space for antenna-related parts and to eliminate a shadow area of a signal transmitted and received from an antenna.
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- Engineering & Computer Science (AREA)
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Abstract
Description
Claims (22)
- 폴(pole);안테나 유닛;상기 안테나 유닛의 하부를 상기 폴에 상하방향으로 회전 가능하게 결합하는 하부 링크 유닛; 및상기 안테나 유닛의 상부를 상기 폴에 결합하고, 상기 안테나 유닛의 상부를 상기 하부 링크 유닛의 회전중심을 기준으로 회전시켜서 틸트시키는 틸트 구동 유닛;을 포함하고,상기 틸트 구동 유닛은,틸트 모터;상기 틸트 모터의 구동력에 의해 회전되는 웜기어;상기 안테나 유닛에 결합되는 제1 틸트 암;상기 폴에 결합되는 제2 틸트 암;상기 웜기어의 회전에 의해 회전되어 상기 제1 틸트 암을 회전시키는 제1 웜휠; 및상기 웜기어의 회전에 의해 회전되어 상기 제2 틸트 암을 회전시키는 제2 웜휠;을 포함하는 안테나 장치.
- 청구항 1에 있어서,상기 안테나 유닛에 결합되고, 상기 폴, 상기 안테나 유닛, 상기 하부 링크 유닛 및 상기 틸트 구동 유닛이 이루는 내측 공간에 배치되는 라디오 유닛을 더 포함하는 안테나 장치.
- 청구항 1에 있어서,상기 안테나 유닛의 상부에 결합되고, 제1 결합부가 상기 폴을 향해 돌출 형성된 상부 마운팅 브래킷과,상기 폴의 상부에 결합되고, 제2 결합부가 상기 안테나 유닛을 향해 돌출 형성된 상부 마운팅 클램프를 더 포함하고,상기 제1 틸트 암은, 하부가 상기 제1 결합부에 회전 가능하게 결합되고, 상부가 상기 제1 웜휠의 회전축에 결합되며,상기 제2 틸트 암은, 하부가 상기 제2 결합부에 회전 가능하게 결합되고, 상부가 상기 제2 웜휠의 회전축에 결합되는 안테나 장치.
- 청구항 3에 있어서,상기 제1 결합부는 상기 안테나 유닛의 측방으로 서로 이격된 한 쌍의 제1 결합부로 형성되고,상기 제2 결합부는 상기 안테나 유닛의 측방으로 서로 이격된 한 쌍의 제2 결합부로 형성되며,상기 제1 틸트 암은,상기 한 쌍의 제1 결합부에 양측 하부가 회전 가능하게 결합되는 제1 틸트 암 본체와,상기 제1 틸트 암 본체의 일측 상단에서 상측으로 연장되고, 상기 제1 웜휠의 회전축의 일단에 결합되는 제1 연장부와,상기 제2 틸트 암 본체의 타측 상단에서 상측으로 연장되고, 상기 제1 웜휠의 회전축의 타단에 결합되는 제2 연장부를 포함하고,상기 제2 틸트 암은,상기 한 쌍의 제2 결합부에 양측 하부가 회전 가능하게 결합되는 제2 틸트 암 본체와,상기 제2 틸트 암 본체의 일측 상단에서 상측으로 연장되고, 상기 제2 웜휠의 회전축의 일단에 결합되는 제3 연장부와,상기 제2 틸트 암 본체의 타측 상단에서 상측으로 연장되고, 상기 제2 웜휠의 회전축의 타단에 결합되는 제4 연장부를 포함하는 안테나 장치.
- 청구항 4에 있어서,상기 제1 연장부 및 상기 제3 연장부와, 상기 제2 연장부 및 상기 제4 연장부와의 사이에 배치되고, 상기 틸트 모터, 상기 웜기어, 상기 제1 웜휠 및 상기 제2 웜휠이 내부에 수용되는 틸트 구동 하우징을 더 포함하는 안테나 장치.
- 청구항 4에 있어서,상기 제1 연장부 및 상기 제2 연장부 중 하나는 상기 제1 틸트 암 본체에 분리가능하게 체결되고,상기 제3 연장부 및 상기 제4 연장부 중 하나는 상기 제2 틸트 암 본체에 분리가능하게 체결되는 안테나 장치.
- 청구항 6에 있어서,상기 제1 웜휠의 회전축은,상기 제1 웜휠이 외주에 결합되고, 상기 제1 연장부 및 상기 제2 연장부 중 어느 하나와 외측단이 체결되는 제1 회전축부와,상기 제1 연장부 및 상기 제2 연장부 중 다른 하나와 일체로 형성되고, 상기 제1 회전축부의 내측단에 체결되는 제2 회전축부를 포함하고,상기 제2 웜휠의 회전축은,상기 제2 웜휠이 외주에 결합되고, 상기 제3 연장부 및 상기 제4 연장부 중 어느 하나와 외측단이 체결되는 제3 회전축부와,상기 제3 연장부 및 상기 제4 연장부 중 다른 하나와 일체로 형성되고, 상기 제3 회전축부의 내측단에 체결되는 제4 회전축부를 포함하는 안테나 장치.
- 청구항 7에 있어서,상기 제1 회전축부의 내측단 및 상기 제2 회전축부의 내측단의 대향면 중 어느 하나에는, 외측에서 중심으로 연장되는 제1 걸림돌기가 형성되고,상기 제1 회전축부의 내측단 및 상기 제2 회전축부의 내측단의 대향면 중 다른 하나에는, 외측방향에서 중심으로 연장되고 상기 제1 걸림돌기가 삽입되는 제1 걸림홈이 형성되며,상기 제3 회전축부의 내측단 및 상기 제4 회전축부의 내측단의 대향면 중 어느 하나에는, 외측에서 중심으로 연장되는 제2 걸림돌기가 형성되고,상기 제3 회전축부의 내측단 및 상기 제4 회전축부의 내측단의 대향면 중 다른 하나에는, 외측방향에서 중심으로 연장되고 상기 제2 걸림돌기가 삽입되는 제2 걸림홈이 형성되는 안테나 장치.
- 청구항 4에 있어서,상기 제1 틸트 암 본체 및 상기 제2 틸트 암 본체의 대향면 각각에는, 상기 안테나 유닛이 최소로 틸트되었을 시 서로 접촉되는 제1 스토퍼가 돌출 형성되는 안테나 장치.
- 청구항 5에 있어서,상기 모터 구동 하우징에는, 상기 안테나 유닛이 최대로 틸트되었을 시, 상기 제1 연장부 및 상기 제2 연장부 중 적어도 하나와, 상기 제3 연장부 및 상기 제4 연장부 중 적어도 하나가 접촉되는 제2 스토퍼가 돌출 형성되는 안테나 장치.
- 청구항 4에 있어서,상기 제1 틸트 암 본체의 상부 및 상기 제2 틸트 암 본체의 상부 각각에는, 상기 제1 틸트 암 본체 및 상기 제2 틸트 암 본체의 대향면이 개구된 내부오픈공간이 형성되는 안테나 장치.
- 청구항 4에 있어서,상기 제1 틸트 암 본체의 하부 및 상기 제2 틸트 암 본체의 하부 각각에는, 상기 안테나 유닛에서 상기 폴로 통하는 제1 개구홀이 형성되는 안테나 장치.
- 청구항 12에 있어서,상기 제1 틸트 암 본체의 하측 및 상기 제2 틸트 암 본체의 하측 각각에는, 상기 제1 개구홀과 통하는 제2 개구홀이 더 형성되는 안테나 장치.
- 청구항 1에 있어서,상기 하부 링크 유닛은,상기 안테나 유닛의 하부에 결합되고, 제3 결합부가 상기 폴을 향해 돌출 형성된 하부 마운팅 브래킷과,상기 폴의 하부에 결합되고, 제4 결합부가 상기 안테나 유닛을 향해 돌출 형성된 하부 마운팅 클램프를 포함하고,상기 제3 결합부 및 상기 제4 결합부는 상하방향으로 회전 가능하게 서로 결합되어, 상기 하부 링크 유닛은 상하방향으로 회전 가능하게 결합되는 안테나 장치.
- 청구항 14에 있어서,상기 제3 결합부는 상기 안테나 유닛의 측방으로 서로 이격된 한 쌍의 제3 결합부로 형성되고,상기 제4 결합부는 상기 안테나 유닛의 측방으로 서로 이격된 한 쌍의 제4 결합부로 형성되는 안테나 장치.
- 청구항 5에 있어서,상기 웜기어는 상기 제1 웜휠 및 상기 제2 웜휠 사이에 배치되고, 상기 제1 웜휠 및 상기 제2 웜휠의 원주방향으로 회전되어 상기 제1 웜휠과의 유격과 상기 제2 웜휠과의 유격을 조절하는 안테나 장치.
- 청구항 16에 있어서,상기 틸트 구동 하우징 내에 수용되고, 상기 틸트 모터의 출력 토크를 증폭시켜 상기 웜기어로 전달하는 감속기를 더 포함하고,상기 웜기어는 상기 감속기에 돌출되게 설치되고,상기 감속기는 상기 틸트 구동 하우징에 상기 웜휠 및 상기 제2 웜휠의 원주방향으로 회전 가능하게 설치되어, 상기 웜기어는 상기 제1 웜휠 및 상기 제2 웜휠의 원주방향으로 회전 가능한 안테나 장치.
- 청구항 1에 있어서,상기 안테나 유닛의 상부에 결합되고, 상기 제1 틸트 암에 상하방향으로 회전 가능하게 결합되는 제1 결합부가 상기 폴을 향해 돌출 형성된 상부 마운팅 브래킷과,상기 폴의 상부에 결합되고, 상기 제2 틸트 암에 상하방향으로 회전 가능하게 결합되는 제2 결합부가 상기 안테나 유닛을 향해 돌출 형성된 상부 마운팅 클램프를 더 포함하고,상기 하부 링크 유닛은,상기 안테나 유닛의 하부에 결합되고, 제3 결합부가 상기 폴을 향해 돌출 형성된 하부 마운팅 브래킷과,상기 폴의 하부에 결합되고, 상기 제3 결합부에 상하방향으로 회전 가능하게 결합되는 제4 결합부가 상기 안테나 유닛을 향해 돌출 형성된 하부 마운팅 클램프를 포함하고,상기 폴에 결합되어, 상기 상부 마운팅 클램프를 수평방향으로 회전시키는 스티어링 유닛과,상기 폴에 결합되어 상기 하부 마운팅 클램프를 고정시키고, 상기 스티어링 유닛이 상기 상부 마운팅 클램프를 수평방향으로 회전시킬 시, 상기 폴에 결합이 해제되어 수평방향으로 회전 가능해지는 클러치 유닛을 더 포함하는 안테나 장치.
- 청구항 1에 있어서,상기 안테나 유닛의 상부에 결합되고, 제1 결합부가 상기 폴을 향해 돌출 형성된 상부 마운팅 브래킷과,상기 폴의 상부에 결합되고, 제2 결합부가 상기 안테나 유닛을 향해 돌출 형성된 상부 마운팅 클램프를 더 포함하고,상기 제1 틸트 암은, 상부가 상기 제1 결합부에 회전 가능하게 결합되고, 하부가 상기 제1 웜휠의 회전축에 결합되며,상기 제2 틸트 암은, 상부가 상기 제2 결합부에 회전 가능하게 결합되고, 하부가 상기 제2 웜휠의 회전축에 결합되는 안테나 장치.
- 청구항 1에 있어서,상기 제1 틸트 암을 상기 제1 웜휠의 회전축 양단에 각각 볼트를 통해 결합하고, 상기 제2 틸트 암을 상기 제2 웜휠의 회전축 양단에 각각 볼트를 통해 결합하는, 복수개의 축 엔드 캡을 더 포함하고,상기 복수개의 축 엔드 캡에는 상기 각각의 볼트의 머리가 수용되는 볼트 머리 수용홈이 각각 형성되고,상기 각각의 볼트 머리 수용홈에는 상기 각각의 볼트의 머리를 고정하는 접착제가 충진되는 안테나 장치.
- 청구항 20에 있어서,상기 각각의 볼트 머리 수용홈과, 상기 각각의 볼트의 머리는, 다각형으로 형성되는 안테나 장치.
- 청구항 20에 있어서,상기 각각의 볼트의 나사부는 나사고정제를 통해 상기 제1 웜휠의 회전축 또는 상기 제2 웜휠의 회전축에 고정되는 안테나 장치.
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| JP2025518423A (ja) * | 2022-06-03 | 2025-06-16 | ケーエムダブリュ・インコーポレーテッド | アンテナ用クランピング装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114556695B (zh) * | 2019-07-18 | 2025-04-29 | 株式会社Kmw | 天线用夹持装置 |
| JP7433452B2 (ja) * | 2020-02-07 | 2024-02-19 | ケーエムダブリュ・インコーポレーテッド | アンテナ装置 |
| CN217086858U (zh) * | 2022-05-06 | 2022-07-29 | 康普技术有限责任公司 | 用于基站天线的安装装置和基站天线系统 |
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| EP2256857A1 (en) * | 2009-05-15 | 2010-12-01 | Bonczyk, Michael Francis | Rotating mounting assembly |
| CN104901013A (zh) | 2015-03-04 | 2015-09-09 | 赖少山 | 一种移动通信天线的自动电调系统 |
| US10944169B2 (en) * | 2016-07-11 | 2021-03-09 | Radiarc Technologies, Llc | Wireless telecommunication antenna mount and control system |
| US11431091B2 (en) * | 2016-07-11 | 2022-08-30 | Radiarc Technologies, Llc | Wireless telecommunication antenna mount and control system and methods of operating the same |
| US10601132B2 (en) | 2016-09-22 | 2020-03-24 | National Sun Yat-Sen University | Active phase switchable array |
| CN207852901U (zh) | 2018-03-09 | 2018-09-11 | 南京华脉科技股份有限公司 | 一种基于电动调节的基站天线安装支架 |
| JP7433452B2 (ja) * | 2020-02-07 | 2024-02-19 | ケーエムダブリュ・インコーポレーテッド | アンテナ装置 |
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- 2021-02-05 JP JP2022546474A patent/JP7433452B2/ja active Active
- 2021-02-05 WO PCT/KR2021/001578 patent/WO2021158075A1/ko not_active Ceased
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2022
- 2022-08-05 US US17/882,515 patent/US12034220B2/en active Active
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2024
- 2024-05-28 US US18/676,483 patent/US12525713B2/en active Active
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| JP2005051409A (ja) * | 2003-07-31 | 2005-02-24 | Hitachi Cable Ltd | アンテナ装置 |
| US20180159199A1 (en) * | 2012-05-18 | 2018-06-07 | Fasmetrics S.A. | Apparatus and method for accurate and precise positioning of cellular antennas |
| WO2018013602A2 (en) * | 2016-07-11 | 2018-01-18 | Sentenia Systems, Inc. | Wireless telecommunication antenna mount and control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2025518225A (ja) * | 2022-06-03 | 2025-06-12 | ケーエムダブリュ・インコーポレーテッド | アンテナ用クランピング装置 |
| JP2025518423A (ja) * | 2022-06-03 | 2025-06-16 | ケーエムダブリュ・インコーポレーテッド | アンテナ用クランピング装置 |
| JP7815481B2 (ja) | 2022-06-03 | 2026-02-17 | ケーエムダブリュ・インコーポレーテッド | アンテナ用クランピング装置 |
| JP7830704B2 (ja) | 2022-06-03 | 2026-03-16 | ケーエムダブリュ・インコーポレーテッド | アンテナ用クランピング装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20220384946A1 (en) | 2022-12-01 |
| JP2023512085A (ja) | 2023-03-23 |
| JP7433452B2 (ja) | 2024-02-19 |
| US12034220B2 (en) | 2024-07-09 |
| US20240332792A1 (en) | 2024-10-03 |
| US12525713B2 (en) | 2026-01-13 |
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