A linear actuator for active antenna phase adjustment and antenna device

Abstract

The present invention proposes a linear actuator for active antenna phase adjustment, comprising: a main body; a wheel set, which is arranged on one side of the main body and connected to the main body. And a connecting tooth, which is arranged in a sleeve, and the connecting tooth is meshed with the inner teeth of the sleeve. The inner teeth of the sleeve are meshed with the wheel set; wherein the central axis of the connecting tooth is in the same straight line as the central axis of the wheel set. The linear actuator for active antenna phase adjustment proposed by the present invention greatly reduces the number of parts, assembly errors, overall size and weight, and has the application value of improving production efficiency and yield.

Description

Technical Field

[0001] The invention relates to the field of base station equipment, and in particular to a linear execution device for active antenna phase adjustment and an antenna device. Background Art

[0002] 5G base stations are the core equipment of 5G networks, providing wireless coverage within a certain area and realizing wireless signal transmission between wired communication networks and wireless terminals. The active antenna phase adjustment structure is one of the core components of base station equipment. During use, the volume of 5G base station antennas accounts for a large proportion. It is unable to meet the demand of 5G antennas for increasingly tight internal space, and it is also difficult to provide large torque for the movement of the antenna.

[0003] Therefore, how to reduce the size of active antennas has become an urgent problem to be solved. Summary of the invention

[0004] In view of the above defects, the present application proposes a linear actuator for phase adjustment of an active antenna and an antenna device, wherein a wheel set and a screw rod are connected through a threaded shaft with an embedded thread. The wheel set is used to reduce the rotation speed and increase the torque, and the threaded shaft is used to convert the rotational motion into the linear motion of the screw rod. The volume of the active antenna is reduced, meeting the antenna's demand for increasingly tight internal space.

[0005] To achieve the above and other purposes, the present application proposes a linear actuator for active antenna phase adjustment, comprising:

[0006] Main body;

[0007] a wheel set, arranged on one side of the main body and connected to the main body; and

[0008] A connecting tooth is disposed in the sleeve and meshes with an internal tooth of the sleeve;

[0009] wherein the inner teeth of the sleeve mesh with the wheel set;

[0010] Wherein, the central axis of the connecting tooth and the central axis of the wheel set are on the same straight line.

[0011] In one embodiment of the present application, the linear actuator for active antenna phase adjustment further includes a motor gear, and the motor gear is meshed with the wheel set.

[0012] In one embodiment of the present application, the linear actuator for active antenna phase adjustment further includes a guide sleeve, and the guide sleeve is arranged on one side of the sleeve.

[0013] In one embodiment of the present application, the central axis of the guide sleeve and the central axis of the sleeve are on the same straight line.

[0014] In one embodiment of the present application, the wheel set includes a first fixing plate and a second fixing plate, and central axes of the first fixing plate and the second fixing plate are on the same straight line.

[0015] In one embodiment of the present application, the second fixing plate includes a first support shaft and a second support shaft, and the shaft diameter of the first support shaft is greater than the shaft diameter of the second support shaft.

[0016] In one embodiment of the present application, the connecting tooth is located on the first support shaft.

[0017] In one embodiment of the present application, the active antenna phase adjustment structure further includes a screw rod, and a central axis of the screw rod coincides with a central axis of the wheel set.

[0018] In one embodiment of the present application, the screw rod includes a guide hole, and a central axis of the guide hole is perpendicular to a central axis of the screw rod.

[0019] Based on the same concept, the present application also proposes an antenna device, comprising:

[0020] Antenna receiving module; and

[0021] A linear actuator for active antenna phase adjustment, used to move the antenna receiving module, comprising:

[0022] Main body;

[0023] a wheel set, arranged on one side of the main body and connected to the main body; and

[0024] A connecting tooth is disposed in the sleeve and meshes with an internal tooth of the sleeve;

[0025] wherein the inner teeth of the sleeve mesh with the wheel set;

[0026] Wherein, the central axis of the connecting tooth and the central axis of the wheel set are on the same straight line.

[0027] In summary, the present application proposes a linear actuator and antenna device for active antenna phase adjustment, in which a wheel set and a screw rod are connected through a threaded shaft with an embedded thread. The wheel set is used to reduce the rotation speed and increase the torque, and the threaded shaft is used to convert the rotational motion into the linear motion of the screw rod. The volume of the active antenna phase adjustment structure is reduced, meeting the antenna's demand for increasingly tight internal space. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of the composition of a linear actuator for active antenna phase adjustment in one embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of the wiring strip structure in one embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of assembling an active antenna phase adjustment structure in one embodiment of the present application;

[0032] Figure 4 This is a schematic diagram of the main body structure assembly in one embodiment of the present application;

[0033] Figure 5 A schematic diagram of the active antenna phase adjustment structure in one embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of the main body power assembly structure assembly in one embodiment of the present application;

[0035] Figure 7 This is a schematic diagram of the structure of the main body power assembly in one embodiment of the present application;

[0036] Figure 8 This is a schematic diagram of the wheel structure in one embodiment of the present application;

[0037] Fig. 9 The first fixing plate structure in one embodiment of the present application is schematically shown in FIG. Figure 1 ;

[0038] Fig.10 The first fixing plate structure in one embodiment of the present application is schematically shown in FIG. Figure 2 ;

[0039] Fig.11 This is a schematic diagram of the structure of a second fixing plate in one embodiment of the present application;

[0040] Fig.12 This is a schematic diagram of a nut structure in one embodiment of the present application;

[0041] Fig.13 A schematic diagram of a transmission component in one embodiment of the present application;

[0042] Fig.14This is a schematic diagram of the outer shell structure in one embodiment of the present application;

[0043] Fig.15 A schematic diagram of an internal gear ring in one embodiment of the present application;

[0044] Fig.16 This is a schematic diagram of the screw rod structure in one embodiment of the present application;

[0045] Fig.17 This is a schematic diagram of the threaded shaft structure in one embodiment of the present application;

[0046] Fig.18 This is a schematic diagram of the assembly of a screw rod assembly in one embodiment of the present application;

[0047] Fig.19 A schematic diagram of the position of the guide sleeve in one embodiment of the present application;

[0048] Fig. 20 The guide sleeve structure in one embodiment of the present application is shown in FIG. Figure 1 ;

[0049] Fig.21 The guide sleeve structure in one embodiment of the present application is shown in FIG. Figure 2 ;

[0050] Fig. 22 FIG. 1 is a schematic diagram of an antenna device in an embodiment of the present application.

[0051] Description of labels:

[0052] 10. Main body;

[0053] 101 Wiring Strip;

[0054] 1011 first terminal;

[0055] 1012 second terminal;

[0056] 1013 Connect the power supply;

[0057] 1014 Connecting strip;

[0058] 102 interface;

[0059] 103 motor gear;

[0060] 104 Powertrain components;

[0061] 1041 first end cap;

[0062] 1042 support frame;

[0063] 1043 rotor;

[0064] 1044 second end cap;

[0065] 1045 Cover;

[0066] 105 outer cylinder;

[0067] 106 magnet assembly;

[0068] 107 Capping;

[0069] 20 wheels;

[0070] 201 first fixing plate;

[0071] 2011 First Gear;

[0072] 2012 Second Gear;

[0073] 2013 Third Gear;

[0074] 2014 Fourth Gear;

[0075] 202 second fixing plate;

[0076] 2021 First gear shaft;

[0077] 20211 First set of teeth;

[0078] 2022 Second gear shaft;

[0079] 20221 Second set of teeth;

[0080] 2023 Third gear shaft;

[0081] 20231 Third set of teeth;

[0082] 2024 First Axis;

[0083] 2025 Second Axis;

[0084] 2026 threaded shaft;

[0085] 20261 Bushing;

[0086] 20262 1st bearing;

[0087] 20263 Fastening ring;

[0088] 20264 Second bearing;

[0089] 30 screw rod;

[0090] 301 shaft pin;

[0091] 302 pin hole;

[0092] 40 sleeve;

[0093] 401 outer shell;

[0094] 4011 Connecting teeth;

[0095] 402 Nut;

[0096] 4021 first nut;

[0097] 4022 second nut;

[0098] 4023 Third nut;

[0099] 403 internal gear ring;

[0100] 4031 prism;

[0101] 50 guide bushing;

[0102] 501 guide hole;

[0103] 502 limit slot;

[0104] 100 antenna assembly;

[0105] 200 Active antenna phase adjustment structure;

[0106] 300 Antenna receiving module. DETAILED DESCRIPTION

[0107] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0108] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0109] This embodiment provides a linear actuator for active antenna phase adjustment and an antenna device, wherein a wheel set and a screw rod are connected via a threaded shaft with an embedded thread, the wheel set is used to reduce the rotation speed and increase the torque, and the threaded shaft is used to convert the rotational motion into the linear motion of the screw rod.

[0110] See also Figure 1 , Figure 1The present invention is a schematic diagram of the composition of a linear actuator for active antenna phase adjustment in one embodiment of the present invention. The present invention proposes a linear actuator for active antenna phase adjustment. In one embodiment of the present invention, the structure of the linear actuator for active antenna phase adjustment may include a main body 10, a wheel set 20, a screw rod 30, a sleeve 40 and a guide sleeve 50. In one embodiment of the present invention, the main body 10 may be connected to a wiring belt 101. The wheel set 20 may include a first fixing plate 201 and a second fixing plate 202, and the screw rod 30 may be arranged on one side of the second fixing plate 202. The wheel set 20 may be located in the sleeve 40, and when the main body 10 is working, the main body 10 drives the wheel set 20 to increase the torque. The wheel set 20 and the sleeve 40 drive the screw rod 30 to perform linear motion through the meshing relationship between the gears, and use the nut and the bracket to transmit the push-pull force. In one embodiment of the present invention, a guide sleeve 50 may be arranged at one end of the screw rod 30, and the central axis of the guide sleeve 50 coincides with the central axis of the screw rod 30. In other embodiments of the present application, the central axis of the guide sleeve 50 may also be on the same straight line as the central axis of the sleeve 40 .

[0111] See also Figure 2 , Figure 2 Schematic diagram of the wiring strip structure in one embodiment of the present application. In one embodiment of the present application, the wiring strip 101 may include a first wiring terminal 1011, a second wiring terminal 1012, a power connector 1013, and a connecting strip 1014. The first wiring terminal 1011 may be provided at one end of the connecting strip 1014, the second wiring terminal 1012 may be provided at the other end of the connecting strip 1014, and the power connector 1013 may be located on the wiring terminal 1012. In one embodiment of the present application, the first wiring terminal 1011 of the wiring strip 101 is connected to the main body 10. The wiring terminal 1012 of the wiring strip 101 is electrically connected to an external device through the power connector 1013.

[0112] See also Figure 1 as well as Figure 3 , Figure 3 The active antenna phase adjustment structure assembly diagram in one embodiment of the present application is shown in FIG. In one embodiment of the present application, the sleeve 40 is connected to the main body 10, and the wheel set 20 is located inside the sleeve 40. The guide sleeve 50 is arranged on one side of the sleeve 40, and the screw rod 30 passes through the guide hole of the guide sleeve 50, and the guide sleeve 50 can prevent the screw rod 30 from rotating during linear motion.

[0113] See also Figure 4 as well as Figure 3 , Figure 4 1 is a schematic diagram of the main body structure assembly in one embodiment of the present application. In one embodiment of the present application, one end of the main body 10 can be connected to the motor gear 103 , and the other end of the main body 10 is connected to the wiring belt 101 through the interface 102 .

[0114] See also Figure 5 as well as Figure 4 , Figure 5 Schematic diagram of the active antenna phase adjustment structure in one embodiment of the present application. In one embodiment of the present application, the main body 10 may include a power component 104, an outer cylinder 105, a magnet component 106 and a cover 107, and the motor gear 103 may be arranged on one side of the cover 107. The bottom of the outer cylinder 105 may be provided with an interface 102, and the brush component may be arranged on the side wall of the outer cylinder 105. In this embodiment, the magnet component 106 may be arranged in the outer cylinder 105, and the magnet component 106 may be, for example, a cross-shaped structure. In other embodiments of the present application, the magnet component 106 may also be, for example, a hexagon, an octagon or other structure. In this embodiment, the central axis of the magnet component 106 may be in the same straight line as the central axis of the outer cylinder 105. The magnet component 106 may be a magnetic bead disk, and a through hole structure may be arranged at the end of the magnetic bead disk, and the magnetic beads may be arranged inside the through hole. In one embodiment of the present application, the power assembly 104 can be arranged on one side of the magnet assembly 106, and the power assembly 104 can be located in the outer cylinder 105, and the side wall wiring of the power assembly 104 can be connected to the side wall brush assembly of the outer cylinder 105. In this embodiment, the central axis of the power assembly 104 can be in the same straight line with the central axis of the magnet assembly 106. The cover 107 can be arranged on the rotating shaft side of the power assembly 104, and the central axis of the cover 107 can be in the same straight line with the central axis of the power assembly 104. In this embodiment, a through hole can be set in the center of the cover 107, and the motor gear 103 can be located in the central through hole of the cover 107. In this embodiment, the central axis of the motor gear 103 and the central axis of the cover 107 are in the same straight line. When the main body 10 is in working state, the power assembly 104 and the magnet assembly 106 drive the motor gear 103 to rotate under the electric drive to output the power of the main body 10.

[0115] See also Figure 6 as well as Figure 7 , Figure 6 This is a schematic diagram of the main body power assembly structure assembly in one embodiment of the present application. Figure 7Schematic diagram of the main body power assembly structure in one embodiment of the present application. In one embodiment of the present application, the power assembly 104 may include a first end cover 1041, a support frame 1042, a rotor 1043, a second end cover 1044 and a cover plate 1045. The rotor 1043 may be arranged in the support frame 1042, one end of the support frame 1042 may be connected to the first end cover 1041, and the other end of the support frame 1042 may be connected to the second end cover 1044. The cover plate 1045 may be arranged on a side of the second end cover 1044 relative to the rotor 1043, and the central axes of the cover plate 1045, the second end cover 1044, the rotor 1043, the support frame 1042 and the first end cover 1041 may be on the same straight line. In this embodiment, the power assembly 104 provides power for the main body 10.

[0116] See also Figure 8-Figure 10 , Figure 8 This is a schematic diagram of the wheel structure in one embodiment of the present application. Fig. 9 The first fixing plate structure in one embodiment of the present application is schematically shown in FIG. Figure 1 , Fig.10 The first fixing plate structure in one embodiment of the present application is schematically shown in FIG. Figure 2In one embodiment of the present application, the wheel set 20 may include a first fixing plate 201 and a second fixing plate 202, and the central axes of the first fixing plate 201 and the second fixing plate 202 are on the same straight line. The first gear 2011 may be arranged on one side of the first fixing plate 201, and the second gear 2012, the third gear 2013 and the fourth gear 2014 may be arranged on the side of the first fixing plate 201 opposite to the first gear 2011. In one embodiment of the present application, the second gear 2012, the third gear 2013 and the fourth gear 2014 may be triangularly symmetrical structures, and the second gear 2012, the third gear 2013 and the fourth gear 2014 may be meshed with the motor gear 103 at the same time. The second fixing plate 202 may include a plurality of holes. In this embodiment, the number of holes located on the second fixing plate 202 may be four. The main shaft hole is located at the center of the second fixing plate 202, and the shaft holes are arranged in a circular array on the outer ring of the second fixing plate 202. In other embodiments of the present application, the number of shaft holes may also be, for example, 4, 6, 8 or other numbers. In this embodiment, the first gear shaft 2021, the second gear shaft 2022 and the third gear shaft 2023 can be arranged in the shaft hole of the second fixing plate 202. The first set of teeth 20211 can be arranged on the first gear shaft 2021, the second set of teeth 20221 can be arranged on the second gear shaft 2022, and the third set of teeth 20231 can be arranged on the third gear shaft 2023. In one embodiment of the present application, the first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231 can be in a triangular symmetrical structure, and the first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231 can mesh with the first gear 2011 at the same time.

[0117] See also Fig.11 , Fig.11 2 is a schematic diagram of the structure of the second fixed plate in one embodiment of the present application. In one embodiment of the present application, the second fixed plate 202 may further include a first support shaft 2024 and a second support shaft 2025. In this embodiment, the first support shaft 2024 is located on the side of the second fixed plate 202 away from the first set of teeth 20211, and the shaft diameter of the first support shaft 2024 may be greater than the shaft diameter of the second support shaft 2025. When the main body 10 is in a working state, the power is transmitted to the second gear 2012, the third gear 2013 and the fourth gear 2014 through the motor gear 103. The second gear 2012, the third gear 2013 and the fourth gear 2014 drive the first gear 2011 to rotate through the first fixed plate 201. The first gear 2011 is meshed with the first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231, and the first gear 2011 drives the first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231 to rotate. The wheel set 20 reduces the rotation speed of the output shaft and increases the output torque.

[0118] See also Figure 12-Figure 15 as well as Fig.11 , Fig.12 This is a schematic diagram of a nut structure in one embodiment of the present application. Fig.13 It is a schematic diagram of the transmission composition in one embodiment of the present application. Fig.14 This is a schematic diagram of the outer shell structure in one embodiment of the present application. Fig.15 Schematic diagram of the inner tooth ring in one embodiment of the present application. In one embodiment of the present application, the nut 402 and the inner tooth ring 403 can be arranged inside the outer shell 401. The nut 402 can include a first nut 4021, a second nut 4022 and a third nut 4023, and one end of the nut 402 is in contact with the outer shell 401, and the other end of the nut 402 is in contact with the second fixing plate 202. The inner wall of the inner tooth ring 403 can be provided with internal teeth to facilitate meshing transmission with the gear. The outer wall of the inner tooth ring 403 can be provided with a prism 4031, and the outer wall prism 4031 of the inner tooth ring 403 can be embedded in the groove of the side wall of the outer shell 401, so as to fix the inner tooth ring 403 and the outer shell 401. In one embodiment of the present application, the cross section of the prism 4031 can be, for example, a trapezoid. In other embodiments of the present application, the cross section of the prism 4031 can also be, for example, a rectangle, a triangle or other figures. In one embodiment of the present application, the axis of the prism 4031 can be parallel to the central axis of the inner gear ring 403. The connecting tooth 4011 can be arranged inside the outer shell 401, and the connecting tooth 4011 can mesh with the inner gear ring 403. In this embodiment, a through hole is opened in the center of the connecting tooth 4011 to accommodate the first support shaft 2024, and the connecting tooth 4011 can be arranged on the first support shaft 2024. When the main body 10 is in a working state, the power assembly 104 and the magnet assembly 106 drive the motor gear 103 to rotate under the electric drive to output the power of the main body 10. The power is transmitted to the second gear 2012, the third gear 2013 and the fourth gear 2014 through the motor gear 103. The second gear 2012, the third gear 2013 and the fourth gear 2014 drive the first gear 2011 to rotate through the first fixed plate 201. The first gear 2011 is meshed with the first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231, and the first gear 2011 drives the first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231 to rotate. The first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231 are meshed with the inner gear ring 403, and the inner gear ring 403 is meshed with the connecting teeth 4011 located inside the outer shell 401. Through the above movement process, the power of the main body 10 can be transmitted to the connecting teeth 4011, while reducing the number of revolutions output by the main body and increasing the torque.

[0119] See also Figure 16-18 , Fig.16Schematic diagram of the screw rod structure in one embodiment of the present application. Fig.17 This is a schematic diagram of the threaded shaft structure in one embodiment of the present application. Fig.18 Schematic diagram of the assembly of the screw rod assembly in one embodiment of the present application. In one embodiment of the present application, the screw rod 30 may include an axle pin 301 and a pin hole 302. The pin hole 302 may penetrate the screw rod 30, and the central axis of the pin hole 302 may be perpendicular to the central axis of the screw rod 30. In one embodiment of the present application, the central axis of the screw rod 30 may coincide with the central axis of the wheel set 20. One end of the screw rod 30 may be connected to the second support shaft 2025, and the other end of the screw rod 30 may be connected to the guide sleeve 50. In this embodiment, the cross-section of the axle pin 301 and the pin hole 302 is circular. In other embodiments of the present application, the cross-section of the axle pin 301 and the pin hole 302 may also be, for example, square, triangle, trapezoid or other graphics. The threaded shaft 2026 may be arranged on the second support shaft 2025, and the threaded shaft 2026 may include a sleeve 20261, a first bearing 20262, a fastening ring 20263 and a second bearing 20264. The fastening ring 20263 may be disposed between the first bearing 20262 and the second bearing 20264 to connect the first bearing 20262 and the second bearing 20264. In this embodiment, the threaded shaft 2026 may be located on one side of the first support shaft 2024, and the sleeve 20261 may be located on one side of the first bearing 20262. The sleeve 20261 may be disposed on the second support shaft 2025 to block the axial movement of the threaded shaft 2026. The threaded shaft 2026 is provided with threads inside, and the connecting teeth 4011 may be provided on the second bearing 20264. When the connecting teeth 4011 rotate, the threaded shaft 2026 is driven to rotate, and the rotational motion is converted into the linear motion of the screw rod 30 through the built-in threads of the threaded shaft 2026.

[0120] See also Figure 19-21 , Fig.19 Schematic diagram of the position of the guide sleeve in one embodiment of the present application. Fig. 20 The guide sleeve structure in one embodiment of the present application is shown in FIG. Figure 1 , Fig.21 The guide sleeve structure in one embodiment of the present application is shown in FIG. Figure 2. In one embodiment of the present application, the guide sleeve 50 may include a guide hole 501 and a limit groove 502. The screw rod 30 passes through the guide hole 501, and the size and shape of the limit groove 502 on the guide sleeve 50 are the same as the shaft pin 301, so as to prevent the screw rod 30 from rotating and play a role of anti-slip limit. In one embodiment of the present application, the central axis of the guide sleeve 50 can coincide with the central axis of the screw rod 30. In one embodiment of the present application, when the main body 10 is in a working state, the power assembly 104 and the magnet assembly 106 drive the motor gear 103 to rotate under electric drive to output the power of the main body 10. The power is transmitted to the second gear 2012, the third gear 2013 and the fourth gear 2014 through the motor gear 103. The second gear 2012, the third gear 2013 and the fourth gear 2014 drive the first gear 2011 to rotate through the first fixed plate 201. The first gear 2011 is meshed with the first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231, and the first gear 2011 drives the first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231 to rotate. The first set of teeth 20211, the second set of teeth 20221 and the third set of teeth 20231 are meshed with the inner gear ring 403, and the inner gear ring 403 is meshed with the connecting teeth 4011 located inside the outer shell 401. Through the above movement process, the power of the main body 10 can be transmitted to the connecting teeth 4011, while reducing the number of revolutions output by the main body and increasing the torque. The threaded shaft 2026 is provided with threads inside, and the connecting teeth 4011 can be provided on the second bearing 20264. When the connecting teeth 4011 rotates, the threaded shaft 2026 is driven to rotate, and the rotational motion is converted into the linear motion of the screw rod 30 through the built-in threads of the threaded shaft 2026.

[0121] See also Fig. 22 as well as Figure 1-Figure 21 , Fig. 22Schematic diagram of an antenna device in one embodiment of the present application. The present application also proposes an antenna device. In one embodiment of the present application, the antenna device 100 may include an active antenna phase adjustment structure 200 and an antenna receiving module 300. The active antenna phase adjustment structure 200 may include a main body 10, a wheel set 20, a screw 30, a sleeve 40 and a guide sleeve 50. The wheel set 20 may include a first fixing plate 201 and a second fixing plate 202, and the screw 30 may be arranged on one side of the second fixing plate 202. The wheel set 20 may be located in the sleeve 40. When the main body 10 is working, the main body 10 drives the wheel set 20 to increase the torque. The wheel set 20 and the sleeve 40 are meshed with each other through the gears, and the screw 30 is driven to perform linear motion by the nut and the bracket to transmit the push-pull force. The active antenna phase adjustment structure 200 is connected to the antenna receiving module 300. The antenna receiving module 300 collects signals from the satellite, and the low noise amplifier of the antenna receiving module 300 amplifies the acquired signals, thereby enhancing the signal strength, while reducing the noise increase, and reducing the impact of cable and other losses on the signal-to-noise ratio. The phase adjustment of the antenna device is achieved under the adjustment of the active antenna phase adjustment structure 200 and the antenna receiving module 300.

[0122] In summary, the present application proposes a linear actuator and antenna device for active antenna phase adjustment, in which a wheel set and a screw rod are connected through a threaded shaft with an embedded thread. The wheel set is used to reduce the rotation speed and increase the torque, and the threaded shaft is used to convert the rotational motion into the linear motion of the screw rod. The volume of the active antenna phase adjustment structure is reduced, meeting the antenna's demand for increasingly tight internal space.

[0123] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, such as the technical solution formed by replacing the above features with the technical features with similar functions disclosed in this application (but not limited to). In addition to the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described in detail here.

Claims

1. A linear actuator for active antenna phase adjustment, characterized in that: include: Main body; A wheel set, arranged on one side of the main body and connected to the main body; as well as A connecting tooth is disposed in the sleeve and meshes with the inner teeth of the sleeve, wherein the inner teeth of the sleeve mesh with the wheel set, and the central axis of the connecting tooth is in the same straight line as the central axis of the wheel set; A motor gear, the motor gear meshing with the wheel set; A guide sleeve, wherein the guide sleeve is disposed on one side of the sleeve, and a central axis of the guide sleeve is in the same straight line as a central axis of the sleeve; and A screw rod, wherein the central axis of the screw rod coincides with the central axis of the wheel set, wherein the screw rod comprises a guide hole, and the central axis of the guide hole is perpendicular to the central axis of the screw rod.

2. The linear actuator for active antenna phase adjustment according to claim 1, characterized in that: The linear actuator for active antenna phase adjustment also includes a motor gear, and the motor gear is meshed with the wheel set.

3. The linear actuator for active antenna phase adjustment according to claim 1, characterized in that: The active antenna phase adjustment structure also includes a guide sleeve, and the guide sleeve is arranged on one side of the sleeve.

4. The linear actuator for active antenna phase adjustment according to claim 3, characterized in that: The central axis of the guide sleeve and the central axis of the sleeve are on the same straight line.

5. The linear actuator for active antenna phase adjustment according to claim 1, characterized in that: The wheel set includes a first fixing plate and a second fixing plate, and central axes of the first fixing plate and the second fixing plate are on the same straight line.

6. The linear actuator for active antenna phase adjustment according to claim 5, characterized in that: The second fixing plate includes a first support shaft and a second support shaft, and the shaft diameter of the first support shaft is larger than the shaft diameter of the second support shaft.

7. The linear actuator for active antenna phase adjustment according to claim 6, characterized in that: The connecting tooth is located on the first support shaft.

8. The linear actuator for active antenna phase adjustment according to claim 1, characterized in that: The active antenna phase adjustment structure also includes a screw rod, and the central axis of the screw rod coincides with the central axis of the wheel set.

9. The linear actuator for active antenna phase adjustment according to claim 8, characterized in that: The screw rod comprises a guide hole, and a central axis of the guide hole is perpendicular to a central axis of the screw rod.

10. An antenna device, characterized in that: include: Antenna receiving module; as well as A linear actuator for active antenna phase adjustment, used to move the antenna receiving module, comprising: Main body; a wheel set, arranged on one side of the main body and connected to the main body; and A connecting tooth is disposed in the sleeve and meshes with the inner teeth of the sleeve, wherein the inner teeth of the sleeve mesh with the wheel set, and the central axis of the connecting tooth is in the same straight line as the central axis of the wheel set; A motor gear, the motor gear meshing with the wheel set; A guide sleeve, wherein the guide sleeve is disposed on one side of the sleeve, and a central axis of the guide sleeve is in the same straight line as a central axis of the sleeve; and A screw rod, wherein the central axis of the screw rod coincides with the central axis of the wheel set, wherein the screw rod comprises a guide hole, and the central axis of the guide hole is perpendicular to the central axis of the screw rod.

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