Antenna holding device

Abstract

Disclosed is a clamping device for an antenna. According to an embodiment of the present disclosure, a clamping device for an antenna is provided, including: a housing configured to be combined with a holding pole on one side; a driving part accommodated in the inside of the housing and including a motor and a gear box connected with the motor; a shaft configured to be connected with the driving part and to rotate in linkage with the rotational movement of the motor; a nut configured to be combined with the shaft and to move in a direction parallel to the extension direction of the shaft in linkage with the rotational movement of the shaft; at least one pivot part configured to pivot about a pivot line in linkage with the linear movement of the nut; and a pivot support part configured to be combined with an antenna module on one side and to pivot in linkage with the pivoting movement of the at least one pivot part, thereby causing the antenna module to pivot about the pivot line in linkage with the pivoting movement of the at least one pivot part.

Description

Technical Field

[0001] This disclosure relates to an antenna clamping device. Background Technology

[0002] The contents described in this section are merely for providing background information for this invention and do not constitute prior art.

[0003] Wireless communication technologies, such as Multiple Input Multiple Output (MIMO), are typically used to significantly increase data transmission capacity by utilizing multiple antennas. It is a spatial multiplexing technique in which the transmitter uses each transmit antenna to transmit different data, while the receiver uses appropriate signal processing to distinguish the transmitted data.

[0004] Therefore, by simultaneously increasing the number of transmit and receive antennas, channel capacity can be increased, allowing more data to be transmitted. For example, increasing the number of antennas to 10 will ensure approximately 10 times the channel capacity compared to a single antenna system using the same frequency band.

[0005] Furthermore, as the number of antennas increases, the number of transmitters and filters also increases. Even so, due to rental costs or space constraints at installation sites, the reality is that smaller, lighter, and lower-cost RF components (antennas / filters / power amplifiers / transceivers, etc.) need to be manufactured. Massive multiple-input multiple-output (MIMO) requires high power to extend coverage, and the power consumption and heat generated by this high power consumption negatively impact the reduction in weight and size.

[0006] In particular, MIMO antennas are constructed by stacking modules consisting of RF components and electronic components. When installing such MIMO antennas in a limited space, in order to maximize ease of installation or make efficient use of space, it is necessary to design the multi-layer structure that constitutes the MIMO antenna to be compact and miniaturized. Moreover, there is an urgent need for an antenna device that can be mounted on a support pole and has the ability to freely adjust its direction.

[0007] Existing antenna clamping devices are installed between the support column and the antenna assembly to adjust the antenna direction, but they suffer from very slow adjustment speeds. Furthermore, if the clamping device becomes larger, the distance between the support column and the antenna assembly increases, potentially causing problems due to the increased load on the antenna assembly.

[0008] In addition, due to the special requirements of the antenna device's installation location, the clamping device may require a shock-resistant design. Summary of the Invention

[0009] (a) Technical problems to be solved Therefore, the main objective of this disclosure is to provide an antenna clamping device that is compact in size and shape and has shock resistance, and can quickly adjust the orientation of the antenna device in order to solve the above problems.

[0010] (II) Technical Solution To achieve the above objectives, according to an embodiment of this disclosure, an antenna clamping device is provided, comprising: a housing configured to be coupled to a support pole on one side; a driving unit housed inside the housing and including a motor and a gearbox connected to the motor; a shaft configured to be connected to the driving unit and capable of interacting and rotating based on the rotational movement of the motor; a nut configured to be coupled to the shaft and move in a direction parallel to the extension direction of the shaft as the shaft rotates; at least one pivot unit configured to pivot about a pivot axis center as the nut moves linearly; and a pivot bracket unit configured to be coupled to the antenna module on one side and capable of pivoting through interaction with the pivotal movement of the at least one pivot unit, thereby causing the antenna module to rotate about the pivot axis center as the at least one pivot unit pivots.

[0011] (III) Beneficial Effects As described above, this embodiment provides an antenna clamping device that is compact in overall size and dimensions, has shock resistance, and can quickly adjust the direction of the antenna device. Attached Figure Description

[0012] Figure 1 This is an exploded perspective view and an enlarged view of a portion of the structure of an antenna clamping device provided in an embodiment of this disclosure.

[0013] Figure 2 This is a perspective view of an antenna clamping device provided in an embodiment of the present disclosure, arranged between a mast and an antenna module.

[0014] Figure 3 This is a diagram of an antenna clamping device provided in an embodiment of the present disclosure in a non-pivoting state, wherein some components are omitted.

[0015] Figure 4 This is a diagram showing the antenna clamping device provided in one embodiment of the present disclosure in a pivoted state, wherein some components are omitted.

[0016] Figure 5This is a diagram showing the antenna clamping device provided in one embodiment of the present disclosure in a state of pivoting in another direction, wherein some components are omitted.

[0017] Figure 6 This is a diagram illustrating the tilting of the pole relative to the ground surface according to an embodiment of this disclosure. Detailed Implementation

[0018] The following is a detailed description of some embodiments of the present disclosure with reference to the accompanying drawings. When labeling the various figures, the same reference numerals are used as much as possible, even if the same constituent elements appear in different figures. Throughout this specification, detailed descriptions of known constituent elements and functions are omitted if it is believed that such detailed descriptions would obscure the subject matter of the present disclosure.

[0019] In describing the constituent elements according to embodiments of this disclosure, symbols such as first, second, i), ii), a), and b) may be used. These symbols are used only to distinguish constituent elements from other constituent elements and are not intended to limit the nature, order, or sequence of the corresponding constituent elements. Throughout the specification, if a constituent element "comprises" or "possesses" another constituent element, unless otherwise stated, it shall be understood that the constituent element further includes the other constituent element, rather than that the constituent element excludes the other constituent element.

[0020] Figure 1 This is an exploded perspective view and an enlarged view of a portion of the structure of an antenna clamping device provided in an embodiment of this disclosure.

[0021] Figure 2 This is a perspective view of an antenna clamping device provided in an embodiment of the present disclosure, arranged between a mast and an antenna module.

[0022] Figure 3 This is a diagram of an antenna clamping device provided in an embodiment of the present disclosure in a non-pivoting state, wherein some components are omitted.

[0023] Reference Figures 1 to 3An embodiment of this disclosure provides an antenna clamping apparatus 10, which includes all or part of the following: housing 100, driving unit 120, shaft 130, nut 140, multiple bearing units 160, at least one pivot unit 170, pivot bracket unit 180, multiple first connecting units 150, and multiple second connecting units 190.

[0024] The housing 100 is configured to be connected to the support pole 250 on one side. For example, a fixing bracket unit 110 is arranged between the housing 100 and the support pole 250, so that the housing 100 can be fixed to the support pole 250 to prevent the housing 100 from moving or rotating relative to the support pole 250.

[0025] Figure 1 The outer shell 100 is shown as being composed of two components that can be joined together, but it is not limited to this and can also be composed of a single component.

[0026] The drive unit 120 is housed inside the housing 100 and includes a motor 122 and a gearbox 124 connected to the motor 122. By being housed inside the housing 100, the drive unit 120 is protected from external impacts or sources of contamination.

[0027] The gearbox 124 may be located at one end of the motor 122, and the gearbox 124 may be formed perpendicular to the motor axis (not shown) of the motor 122. This is to minimize the overall width of the drive unit 120 in the parallel direction of the motor axis. Moreover, in order to minimize the overall size of the housing 100, the drive unit 120 may be arranged close to the inner surface of the housing 100, for example, it may also be fixed to the inner surface of the housing 100.

[0028] The gearbox 124 has at least one gear arranged inside, which can function as a speed reducer.

[0029] Shaft 130 is configured to be connected to drive unit 120 and to rotate in conjunction with the rotational motion of motor 122. The rotational motion of motor 122 is transmitted to shaft 130 via gearbox 124.

[0030] The extension direction of shaft 130 is different from that of motor shaft 122, but they can be parallel to each other. More specifically, shaft 130 is spaced apart from motor 122 in a direction perpendicular to motor shaft, so that at least a portion of motor 122, gearbox 124 and shaft 130 can be formed as a whole into a 'C' shape, thereby minimizing the overall width of antenna clamping device 10 in the direction parallel to motor shaft.

[0031] The nut 140 is configured to engage with the shaft 130 and move in a direction parallel to the extension direction of the shaft 130 as the shaft 130 rotates. That is, the nut 140 can serve as a medium capable of converting rotational motion into linear motion.

[0032] In addition, to enable the nut 140 to move linearly, at least a portion of the shaft 130 may be formed with a trapezoidal thread 135. In this case, the nut 140 may be configured to engage with the trapezoidal thread 135 by means of a screw. Therefore, when the shaft 130 rotates, the nut 140 may move to one side or the other side of the extension direction of the shaft 130 along its rotation direction.

[0033] The total length formed by the trapezoidal screw 135 determines the movement distance of the nut 140, which further determines the pivot range of at least one pivot portion 170. That is, the longer the total length formed by the trapezoidal screw 135, the larger the pivot range of the antenna module 200, and the shorter the total length, the smaller the pivot range of the antenna module 200.

[0034] Compared to existing clamping devices that utilize worm gears, the antenna clamping device 10 using trapezoidal screws 135 offers high strength while rapidly converting rotational motion into linear motion. Therefore, the overall pivoting speed of the antenna clamping device 10 can be increased, allowing it to stably support internal components even during strong vibrations such as earthquakes.

[0035] Multiple bearing portions 160 are mounted on the shaft 130 on both sides of the shaft 130 in the extending direction, in a manner that surrounds at least a portion of the shaft 130. For example, the multiple bearing portions 160 may be arranged to be spaced apart by the total length distance of the trapezoidal screws 135 formed on the shaft 130.

[0036] At this time, in order to stably support the multiple bearing sections 160, the multiple bearing sections 160 can be configured such that any one of them contacts the inner surface of the housing 100, and the other contacts one side of the drive section 120.

[0037] At least one pivot portion 170 may be configured to pivot about the pivot axis (PA) as the nut 140 moves linearly. Figure 1The illustration shows that at least one pivot portion 170 is composed of two pivot portions 170, which are joined in a direction parallel to the pivot axis PA. However, it is not limited to this and can also be composed of a single pivot portion 170 with the same or similar joining shape as the two pivot portions 170.

[0038] The pivot support portion 180 is configured to pivot in conjunction with the pivoting movement of at least one pivot portion 170, and is configured to be able to be combined with the antenna module 200 on one side, so that the antenna module 200 can rotate about the pivot axis PA as the pivoting movement of at least one pivot portion 170 occurs.

[0039] In addition, for structural stability, at least one pivot portion 170 and pivot support portion 180 may be formed symmetrically with reference to a virtual plane, which is perpendicular to the pivot axis PA and passes through the center of axis 130.

[0040] As a result, the rotational motion of the motor 122 is converted into linear motion by the nut 140. The linear motion of the nut 140 can cause at least one pivot portion 170 to pivot. Through the pivoting of at least one pivot portion 170, the pivot support portion 180 can pivot, thereby enabling the antenna module 200 to rotate around the pivot axis PA.

[0041] An embodiment of the present disclosure provides an antenna clamping device 10 with the advantages of compact structure and the ability to quickly adjust the orientation of the antenna module 200.

[0042] The pivot axis PA can be perpendicular to the direction parallel to the extension direction of shaft 130. For example, the direction parallel to the extension direction of shaft 130 can be... Figures 1 to 3 In the direction parallel to the X-axis, the pivot axis PA can be... Figure 1 and Figure 2 The direction parallel to the Y-axis.

[0043] Additionally, the pivot axis PA can be perpendicular or parallel to the length direction of the mast 250. That is, Figure 1 and Figure 2 The central axis PA can be perpendicular to the length direction of the boom 250, such as the Z-axis direction, but is not limited to this.

[0044] For example, Figures 1 to 3 The pivot axis PA is shown in the diagram as being parallel to the Y-axis; the pivot axis PA can also be parallel to the Z-axis. In this case, Figure 2 The antenna clamping device 10 can be arranged between the mast 250 and the antenna module 200 in a state that can be rotated 90 degrees clockwise or counterclockwise.

[0045] Therefore, the antenna clamping device 10 provided in one embodiment of this disclosure can tilt the antenna module 200 between the mast 250 and the antenna module 200 according to the arrangement direction, and can also steering the antenna module 200. Tilting refers to tilting the antenna module 200 at a predetermined angle relative to the ground surface, and steering refers to moving it along an arc at the same height relative to the ground surface.

[0046] Additionally, when using a direction perpendicular to both the motor shaft and the pivot axis PA as a reference, for example... Figures 1 to 3 With the Z-axis as the reference, the pivot axis PA can be located between motor 122 and shaft 130.

[0047] At this point, when taking a direction perpendicular to both the motor shaft and the pivot axis PA as a reference, the components arranged inside the housing 100 can be, in sequence, the shaft 130, the pivot axis PA, and the motor 122. As described above, by arranging the pivot axis PA between the shaft 130 and the motor 122, the overall size of the antenna clamping device 10 can be made more compact.

[0048] A plurality of first connecting portions 150 extend at least a portion of each in a direction parallel to the pivot axis PA, and are fixed to both sides of the nut 140 with reference to the direction parallel to the pivot axis PA. Each of the plurality of first connecting portions 150 is connected to at least one pivot portion 170 at a predetermined distance from the pivot axis PA.

[0049] Therefore, the multiple first connecting portions 150 can move linearly together with the linear movement of the nut 140, which can drive the pivoting of at least one pivot portion 170.

[0050] Furthermore, when the total length of the trapezoidal screw 135 is constant, the pivot range of at least one pivot portion 170 may vary depending on the distance between each of the plurality of first connecting portions 150 and the pivot axis PA.

[0051] Furthermore, each of at least one pivot portion 170 may include a through hole 175, which is formed in a direction parallel to the pivot axis PA in a region spaced at a certain distance from the pivot axis PA. In this case, each of the plurality of first connecting portions 150 is received in the through hole 175 with at least a portion in contact with the inner peripheral surface of the through hole 175.

[0052] Therefore, as the plurality of first connecting portions 150 move linearly, at least one pivot portion 170 can pivot around the pivot axis PA. In order to pivot smoothly, the cross-sectional area of ​​the portion accommodated in the through hole 175 of each of the plurality of first connecting portions 150 can be smaller than the cross-sectional area of ​​the through hole 175.

[0053] A plurality of second connecting portions 190 are formed spaced apart in a direction parallel to the pivot axis PA. Each of the plurality of second connecting portions 190 is connected on one side to at least one pivot portion 170 and on the other side to a pivot support portion 180. Therefore, pivoting of at least one pivot portion 170 can be transmitted to the pivot support portion 180 through the plurality of second connecting portions 190.

[0054] Each of the plurality of second connecting portions 190 may have at least a portion disposed outside the housing 100, in which case the pivot support portion 180 may be configured to surround at least a portion of the housing 100, such as at least a portion of the two opposite sides of the housing 100 in the pivot axis PA direction and the side of the antenna module 200. Therefore, the housing 100 and its internal components are protected from external impacts.

[0055] Figure 4 This is a diagram showing the antenna clamping device provided in one embodiment of the present disclosure in a pivoted state, wherein some components are omitted.

[0056] Figure 5 This is a diagram showing the antenna clamping device provided in one embodiment of the present disclosure in a state of pivoting in another direction, wherein some components are omitted.

[0057] Figure 4 and Figure 5 Unlike Figure 3 The diagram shows the entire nut 140.

[0058] Reference Figure 4 and Figure 5 As the nut 140 moves linearly, the antenna module 200 can pivot at angles θ1 and θ2, for example, the absolute values ​​of θ1 and θ2 can be up to 25°.

[0059] Figure 6 This is a diagram illustrating the tilting of the pole relative to the ground surface according to an embodiment of this disclosure.

[0060] Reference Figure 6 The mast 250 is tilted at an angle θ3 relative to the ground surface, but the antenna module 200 is perpendicular to the ground surface. In this case, the antenna clamping device 10 provided in one embodiment of the present disclosure may include an acceleration sensor (not shown) that can appropriately rotate the antenna module 200 so that the antenna module 200 is perpendicular to the ground surface.

[0061] The above description is merely illustrative of the technical concept of this embodiment. For those skilled in the art, various modifications and variations can be made without departing from the essential characteristics of this embodiment. Therefore, this embodiment is for illustration, not limitation, of the technical concept, and these embodiments are not intended to limit the scope of the technical concept of this embodiment. The scope of protection of this embodiment is interpreted based on the appended claims, and all technical concepts within the equivalent scope should be interpreted as falling within the scope of the rights of this embodiment.

[0062] [Explanation of reference numerals in the attached figures] 10: Antenna clamping device; 100: Housing 110: Fixed bracket part; 120: Drive part 122: Motor; 124: Gearbox 130: Shaft; 135: Trapezoidal screw 140: Nut; 150: Multiple first connecting parts 160: Multiple bearing sections; 170: At least one pivot section 175: Through hole; 180: Pivot support section 190: Multiple second connecting parts; 200: Antenna module 250: Pole support PA: Pivot axis [Cross-references to related applications] This patent application claims priority to Korean Patent Application No. 10-2023-0153848, filed with the Korean Patent Office on November 8, 2023, and Korean Patent Application No. 10-2023-0177705, filed with the Korean Patent Office on December 8, 2023, the contents of which are incorporated herein by reference.

Claims

1. A clamping device for an antenna, characterized in that, include: The housing is designed so that one side can be attached to the pole. A drive unit, which is housed inside the housing, includes a motor and a gearbox connected to the motor; A shaft, configured to be connected to the drive unit and rotate in conjunction with the rotational motion of the motor; A nut, configured to engage with the shaft and move in a direction parallel to the extension direction of the shaft as the shaft rotates; At least one pivot portion configured to pivot about a pivot axis center in accordance with the linear movement of the nut; and The pivot support portion is configured to be able to be combined with the antenna module on one side, and pivots in conjunction with the pivoting movement of the at least one pivot portion, thereby causing the antenna module to rotate around the pivot axis as the at least one pivot portion pivots.

2. The antenna clamping device as described in claim 1, characterized in that, The pivot axis is perpendicular to the parallel direction of the extension direction of the shaft.

3. The antenna clamping device as described in claim 2, characterized in that, The pivot axis is perpendicular or parallel to the length direction of the support rod.

4. The antenna clamping device as described in claim 1, characterized in that, The direction of extension of the shaft is different from the direction of the motor shaft of the motor, but they are parallel to each other.

5. The antenna clamping device as described in claim 1, characterized in that, When the reference is taken as a direction that is perpendicular to both the motor shaft and the pivot axis of the motor, the pivot axis is located between the motor and the shaft.

6. The antenna clamping device as described in claim 1, characterized in that, A trapezoidal screw is formed on at least a portion of the shaft, and the nut is engaged with the trapezoidal screw in a screw manner.

7. The antenna clamping device as claimed in claim 1, characterized in that, The drive unit is arranged close to the inner surface of the housing.

8. The antenna clamping device as claimed in claim 1, characterized in that, It further includes a plurality of bearing portions mounted on the shaft on both sides of the shaft extending in the direction of extension, surrounding at least a portion of the shaft.

9. The antenna clamping device as described in claim 8, characterized in that, One of the plurality of bearing portions is in contact with the inner surface of the housing, and the other is in contact with one side of the drive portion.

10. The antenna clamping device as claimed in claim 1, characterized in that, It further includes a plurality of first connecting portions, each of which has at least a portion extending along a direction parallel to the pivot axis and fixed to both sides of the nut with reference to the direction parallel to the pivot axis. Each of the plurality of first connecting portions is connected to the at least one pivot portion at a position at a predetermined distance from the pivot axis.

11. The antenna clamping device as claimed in claim 10, characterized in that, Each of the at least one pivot portion includes a through hole formed in a direction parallel to the pivot axis in a region separated from the pivot axis, each of the plurality of first connecting portions is accommodated in the through hole with at least a portion in contact with the inner peripheral surface of the through hole, and the cross-sectional area of ​​the portion accommodated in the through hole of each of the plurality of first connecting portions is smaller than the cross-sectional area of ​​the through hole.

12. The antenna clamping device as claimed in claim 1, characterized in that, It further includes a plurality of second connecting portions spaced apart along the parallel of the pivot axis, each at least a portion of which is arranged outside the housing, each of the plurality of second connecting portions having one side connected to the at least one pivot portion and the other side connected to the pivot support portion.

13. The antenna clamping device as claimed in claim 1, characterized in that, The pivoting range centered on the pivot axis of the pivot portion is -25° to 25°.

14. The antenna clamping device as claimed in claim 1, characterized in that, The at least one pivot portion and the pivot support portion are formed symmetrically with respect to a virtual plane, which is perpendicular to the pivot axis and passes through the center of the axis.

15. The antenna clamping device as claimed in claim 1, characterized in that, It further includes an acceleration sensor disposed inside the housing for detecting the tilt of the pole relative to the ground surface.

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