Antenna, phase shift regulation and control device and phase shift transmission assembly

Abstract

The utility model relates to an antenna, a phase shift regulation and control device and a phase shift transmission assembly. The phase shift transmission assembly comprises a reduction gearbox and a screw transmission mechanism. The screw transmission mechanism comprises a mounting seat arranged on the antenna bottom plate, a first transmission part rotatably connected to the mounting seat, a screw rotatably connected with the mounting seat, a screwing part in threaded fit with the screw, and a push rod connected with the screwing part. The first transmission part comprises a first bevel gear located outside the shielding box and a rotating shaft which is connected with the first bevel gear and extends into the reduction gearbox to be connected with the output end of the reduction gearbox, the screw rod is connected with a second bevel gear, and the push rod is slidably arranged on the mounting seat in the axial direction of the screw rod. The first bevel gear and the second bevel gear are matched with each other to play a reversing role, so that the rotating shaft can penetrate out of the shielding box in the direction perpendicular to the antenna bottom plate, the screw and the push rod can be arranged in the direction parallel to the antenna bottom plate, connection with a phase shifter is facilitated, the overall structure is compact, and occupied space is small.

Description

Technical Field

[0001] The present application relates to the field of mobile communication technology, and in particular to an antenna, a phase shift control device and a phase shift transmission component. Background Art

[0002] In the coverage of mobile communication networks, the electrically-adjustable antenna is one of the key devices for covering the network. The electrically-adjustable antenna mainly includes an antenna array, a phase shifter connected to the antenna array, and a driving device and a control module for controlling the phase shifter to perform phase adjustment. Under the control of the control module, the driving device completes the phase adjustment action of the phase shifter. However, the frequency of the signal when the antenna array is working is different from the frequency of the control signal of the control module, which makes it easy for the signals between the antenna array and the control module to interfere with each other, especially affecting the illumination intermodulation and reflection intermodulation indicators of the antenna system, thereby affecting the radiation performance of the antenna system.

[0003] In the related art, a shielding box is used to install a control module and a driving device, and an axial hole is opened on the shielding box. The driving shaft of the driving device passes through the axial hole and extends to the outside of the shielding box, and is connected to the phase shifting medium of the phase shifter. However, when the phase shifter and the shielding box are arranged on the same side of the antenna base plate, the driving shaft can be directly connected to the phase shifting medium of the phase shifter after passing through the axial hole, but it occupies a large space, making it impossible to achieve miniaturization; when the phase shifter and the shielding box are arranged on opposite sides of the antenna base plate, the space occupied can be reduced, but the driving shaft cannot be connected to the phase shifter because it is on both sides of the antenna base plate with the phase shifter. Summary of the invention

[0004] Based on this, it is necessary to overcome the defects of the prior art and provide an antenna, a phase shift control device and a phase shift transmission assembly, which can achieve a compact structure, reduce the occupied space, and at the same time achieve connection with the phase shifter.

[0005] A phase-shift transmission assembly, comprising:

[0006] A reduction box, the reduction box is used to be arranged inside the shielding box, and the input end of the reduction box is used to be connected to the output shaft of the motor; and

[0007] A screw transmission mechanism, which is used to be installed on the antenna base plate, and the screw transmission mechanism includes a mounting base installed on the antenna base plate, a first transmission member rotatably connected to the mounting base, a screw rotatably connected to the mounting base, a screw threadedly matched with the screw and a push rod connected to the screw thread, the first transmission member includes a first bevel gear located outside the shielding box and a rotating shaft connected to the first bevel gear and extending through the interior of the reduction gear box and connected to the output end of the reduction gear box, the screw is connected to a second bevel gear meshing with the first bevel gear, and the push rod is slidably arranged on the mounting base along the axial direction of the screw, and the push rod is used to be connected to a phase shifter.

[0008] In one embodiment, the reduction gearbox includes a driving gear and a driven gear meshing with the driving gear; the driving gear is connected to the output shaft of the motor, the driven gear is connected to the first transmission member, and the driving gear and the driven gear are both configured as bevel gears.

[0009] In one embodiment, the reduction gear box also includes a chassis, and the driving gear and the driven gear are rotatably arranged in the chassis; the chassis includes a detachably connected fixing block and a mounting block, and a first recess and a second recess are respectively formed on two side surfaces connected to each other by the fixing block and the mounting block, the first recess and the second recess are communicated with each other and form a first active chamber for accommodating the driving gear and the driven gear, and a first axial hole and a second axial hole communicated with the first active chamber, the connecting shaft of the driving gear is rotatably inserted into the first axial hole, and the connecting shaft of the driven gear is rotatably inserted into the second axial hole.

[0010] In one embodiment, the mounting seat includes a first clamp block and a second clamp block that are detachably connected; a third recess and a fourth recess are respectively formed on two side surfaces of the first clamp block and the second clamp block that are connected to each other, the third recess and the fourth recess are interconnected to form a second active chamber for accommodating the first bevel gear and the second bevel gear, and a third axial hole and a fourth axial hole that are connected to the second active chamber, the connecting shaft of the first bevel gear is rotatably inserted into the third axial hole, and the connecting shaft of the second bevel gear is rotatably inserted into the fourth axial hole.

[0011] In one of the embodiments, the screw rod is provided with a first stop portion and a second stop portion along its axial direction, and the screw-in component is provided with a third stop portion and a fourth stop portion along its axial direction; when the screw-in component moves to a first extreme position along its axial direction, the third stop portion and the first stop portion abut against each other for limiting position; when the screw-in component moves to a second extreme position along its axial direction, the fourth stop portion and the second stop portion abut against each other for limiting position.

[0012] A phase-shift control device, the phase-shift control device includes the phase-shift transmission assembly, the phase-shift control device also includes an antenna base plate, a shielding box installed on the antenna base plate, and a motor and an electronic control mainboard installed inside the shielding box, the electronic control mainboard is electrically connected to the motor, the output shaft of the motor is connected to the input end of the reduction gearbox, a first through hole is provided at the bottom of the shielding box, a second through hole is provided on the antenna base plate opposite to the first through hole, and the first transmission member is respectively penetrated through the first through hole and the second through hole.

[0013] In one embodiment, the phase shift control device also includes a shielding component arranged between the antenna base plate and the shielding box, and the shielding component is circumferentially arranged around the first through hole and the second through hole respectively, and the orthographic projection of the shielding component on the base plate of the shielding box is located at the periphery of the first through hole, and the orthographic projection of the shielding component on the antenna base plate is located at the periphery of the second through hole.

[0014] In one embodiment, the shielding assembly includes a first protrusion connected to the bottom of the shielding box and a second protrusion connected to the antenna base plate; the first protrusion forms a first groove, the second protrusion extends into the first groove and is spaced apart from the inner wall of the first groove; or, the second protrusion forms a second groove, the first protrusion extends into the second groove and is spaced apart from the inner wall of the second groove.

[0015] In one embodiment, the shielding box includes a main shell, a first cover that can be openably mounted on the top surface of the main shell, and a second cover that can be openably mounted on the side surface of the main shell; at least one circle of first conductive glue is provided at the connection position between the main shell and the first cover, and at least one circle of second conductive glue is provided at the connection position between the main shell and the second cover.

[0016] An antenna comprises the phase shift control device.

[0017] When the above antenna, phase shift control device and phase shift transmission assembly are in use, the motor drives the reduction box to move, and the reduction box can stably drive the first transmission member to rotate. The first transmission member drives the screw to rotate through the first bevel gear and the second bevel gear. When the screw rotates, it drives the screw-fitting member to move, and then drives the push rod to move back and forth in a straight line to adjust the phase shifter to achieve phase adjustment. It can be seen that the first bevel gear and the second bevel gear cooperate with each other to play a reversing role, so that the shaft can pass through the outside of the shielding box perpendicular to the direction of the antenna bottom plate, and the screw and the push rod can be arranged in a direction parallel to the antenna bottom plate, which is convenient for connection with the phase shifter, and at the same time can achieve a compact overall structure and reduce the occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a structural diagram of a phase shift control device according to an embodiment of the present application.

[0019] FIG. 2 is a cross-sectional structural diagram of a phase shift control device according to an embodiment of the present application.

[0020] FIG. 3 is an enlarged structural diagram of point A in FIG. 2 .

[0021] FIG. 4 is a structural diagram of a reduction gearbox according to an embodiment of the present application.

[0022] FIG. 5 is a cross-sectional structural diagram of the structure shown in FIG. 4 .

[0023] FIG. 6 is a structural diagram of a screw transmission structure according to an embodiment of the present application.

[0024] FIG. 7 is a top view of the structure shown in FIG. 6 .

[0025] FIG. 8 is a structural diagram of a screw rod according to an embodiment of the present application from one perspective.

[0026] FIG. 9 is a structural diagram of the structure shown in FIG. 8 from another viewing angle.

[0027] FIG. 10 is a structural diagram of a screw-fitting member and a push rod according to an embodiment of the present application.

[0028] 10. reduction box; 11. driving gear; 12. driven gear; 13. chassis; 131. fixing block; 132. mounting block; 133. first movable chamber; 134. first shaft hole; 135. second shaft hole; 20. screw transmission mechanism; 21. mounting seat; 211. first clamping block; 212. second clamping block; 213. second movable chamber; 214. third shaft hole; 215. fourth shaft hole; 22. first transmission member; 221. first bevel gear; 222. rotating shaft; 23. screw; 2 31. First stopper; 232. Second stopper; 24. Screw-on; 241. Third stopper; 242. Fourth stopper; 25. Push rod; 26. Second bevel gear; 30. Shielding box; 301. First through hole; 31. Main shell; 32. First cover; 33. Second cover; 40. Motor; 50. Antenna base plate; 51. Second through hole; 60. Electronic control main board; 70. Shielding assembly; 71. First protrusion; 711. First groove; 72. Second protrusion; 80. Supporting part. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] Referring to Figures 1 to 3, Figure 1 shows a structural diagram of a phase-shifting control device according to an embodiment of the present application. Figure 2 shows a cross-sectional structural diagram of a phase-shifting control device according to an embodiment of the present application. Figure 3 shows an enlarged structural diagram of Figure 2 at point A. A phase-shifting transmission component provided in an embodiment of the present application comprises: a reduction box 10 and a screw transmission mechanism 20. The reduction box 10 is used to be arranged inside a shielding box 30, and the input end of the reduction box 10 is used to be connected to the output shaft of a motor 40. The screw transmission mechanism 20 is used to be installed on an antenna base plate 50, and the screw transmission mechanism 20 comprises a mounting seat 21 installed on the antenna base plate 50, a first transmission member 22 rotatably connected to the mounting seat 21, a screw 23 rotatably connected to the mounting seat 21, a screw member 24 threadedly matched with the screw 23, and a push rod 25 connected to the screw member 24. The first transmission member 22 includes a first bevel gear 221 located outside the shielding box 30 and a rotating shaft 222 connected to the first bevel gear 221 and extending through the reduction box 10 and connected to the output end of the reduction box 10. The screw rod 23 is connected to a second bevel gear 26 meshing with the first bevel gear 221. The push rod 25 is slidably disposed on the mounting seat 21 along the axial direction of the screw rod 23, and the push rod 25 is used to be connected to a phase shifter (not shown in the figure).

[0031] It should be noted that the threaded fit between the screw member 24 and the screw rod 23 refers to the screw member 24 being formed with threads adapted to the threads of the screw rod 23. Optionally, the screw member 24 can be a screw sleeve sleeved outside the screw rod 23, or a moving block located on one side of the screw rod 23, and a thread adapted to the screw rod 23 is formed on the side of the moving block facing the screw rod 23. In this way, when the screw rod 23 rotates, and under the guidance of the push rod 25, the screw member 24 can be driven to move along the axial direction of the screw rod 23 to adjust the position, thereby adjusting the phase of the phase shifter.

[0032] When the above-mentioned phase shift transmission assembly is in use, the motor 40 drives the reduction box 10 to move, and the reduction box 10 can stably drive the first transmission member 22 to rotate. The first transmission member 22 drives the screw 23 to rotate through the first bevel gear 221 and the second bevel gear 26. When the screw 23 rotates, it drives the screw member 24 to move, and then drives the push rod 25 to move back and forth in a straight line to adjust the phase shifter to achieve phase adjustment. It can be seen that the first bevel gear 221 and the second bevel gear 26 cooperate with each other to play a reversing role, so that the rotating shaft 222 can pass through the outside of the shielding box 30 perpendicular to the direction of the antenna bottom plate 50, and the screw 23 and the push rod 25 can be arranged in a direction parallel to the antenna bottom plate 50, which is convenient for connection with the phase shifter, and at the same time can achieve a compact overall structure and reduce the occupied space.

[0033] Please refer to Figures 3 to 5. In some embodiments, the reducer 10 can be set as a reversing reducer so that the axial direction of the output shaft of the motor 40 is perpendicular to the axial direction of the first transmission member 22, and the axial direction of the output shaft of the motor 40 is parallel to the board surface of the antenna base plate 50. In this way, the motor 40 and the reducer 10 are arranged in a direction parallel to the board surface of the antenna base plate 50. Compared with the arrangement of the motor 40 and the reducer 10 in a direction perpendicular to the board surface of the antenna base plate 50, the structural arrangement is more compact and the volume size is smaller. It can also be unnecessary to be set as a reversing reducer, that is, the direction of the input end of the reducer 10 is the same as the direction of the output end of the motor 40, so that the output shaft of the motor 40 is axially parallel to the axial direction of the first transmission member 22.

[0034] Please refer to Figures 3 to 5. In one embodiment, the reduction box 10 includes a driving gear 11 and a driven gear 12 meshing with the driving gear 11. The driving gear 11 is connected to the output shaft of the motor 40, and the driven gear 12 is connected to the first transmission member 22. The driving gear 11 and the driven gear 12 are both configured as bevel gears. When the output shaft of the motor 40 rotates, the driving gear 11 is driven to rotate, the driving gear 11 drives the driven gear 12 to rotate, and the driven gear 12 drives the first transmission member 22 to rotate. Since the driving gear 11 and the driven gear 12 are both bevel gears, the two can achieve reversal when they cooperate, that is, the axial direction of the output shaft of the motor 40 is perpendicular to the axial direction of the first transmission member 22.

[0035] Please refer to Figures 3 to 5, in which the output shaft of the motor 40 is coaxially arranged with the driving gear 11. For example, the driving gear 11 is provided with a mounting hole, the output shaft of the motor 40 is installed in the mounting hole, and is fixedly connected with the driving gear 11 by fasteners, for example; or the axial cross-sectional profile of the mounting hole is set to be non-circular, such as elliptical, polygonal, etc., so that the output shaft of the motor 40 and the driving gear 11 can rotate synchronously. Similarly, the first transmission member 22 is coaxially arranged with the driven gear 12, and the specific arrangement is similar to the arrangement of the output shaft of the motor 40 and the driving gear 11, which will not be repeated here.

[0036] Please refer to FIGS. 3 to 5 . In one embodiment, the reduction box 10 further includes a chassis 13. The driving gear 11 and the driven gear 12 are rotatably disposed in the chassis 13. The chassis 13 includes a detachably connected fixing block 131 and a mounting block 132. A first recess and a second recess are respectively formed on two sides connected to each other by the fixing block 131 and the mounting block 132. The first recess and the second recess are communicated with each other to form a first movable chamber 133 for accommodating the driving gear 11 and the driven gear 12, and a first shaft hole 134 and a second shaft hole 135 communicated with the first movable chamber 133. The connecting shaft of the driving gear 11 is rotatably penetrated in the first shaft hole 134, and the connecting shaft of the driven gear 12 is rotatably penetrated in the second shaft hole 135. In this way, the chassis 13 adopts a structural form of a detachably connected fixing block 131 and a mounting block 132, which can facilitate the assembly operation of the reduction box 10.

[0037] Please refer to FIG. 3, FIG. 6 and FIG. 7. In one embodiment, the mounting seat 21 includes a first clamping block 211 and a second clamping block 212 that are detachably connected. A third recess and a fourth recess are respectively formed on two sides of the first clamping block 211 and the second clamping block 212 that are connected to each other. The third recess and the fourth recess are connected to each other and form a second active chamber 213 for accommodating the first bevel gear 221 and the second bevel gear 26, and a third shaft hole 214 and a fourth shaft hole 215 that are connected to the second active chamber 213. The connecting shaft of the first bevel gear 221 is rotatably inserted into the third shaft hole 214, and the connecting shaft of the second bevel gear 26 is rotatably inserted into the fourth shaft hole 215. In this way, the mounting seat 21 adopts a combination of the first clamping block 211 and the second clamping block 212 that are detachably connected, which can facilitate the assembly operation of the mounting seat 21.

[0038] Please refer to Figures 5 to 10. In one embodiment, the screw rod 23 is provided with a first stop portion 231 and a second stop portion 232 along its axial direction. The screw member 24 is provided with a third stop portion 241 and a fourth stop portion 242 along its axial direction. When the screw member 24 moves to the first limit position along its axial direction, the third stop portion 241 and the first stop portion 231 abut against each other for limiting position; when the screw member 24 moves to the second limit position along its axial direction, the fourth stop portion 242 and the second stop portion 232 abut against each other for limiting position. In this way, when the screw member 24 moves to the first limit position or the second limit position, the stroke calibration can be performed, thereby improving the accuracy of the phase shift adjustment of the phase shifter.

[0039] In some embodiments, the screw rod 23 and the output shaft of the motor 40 are arranged parallel to each other and parallel to the antenna base plate 50. In this way, the overall structure is compact and occupies little space.

[0040] Please refer to Figures 1 to 3. In one embodiment, a phase-shift control device includes the phase-shift transmission assembly of any of the above embodiments, and further includes an antenna base plate 50, a shielding box 30 installed on the antenna base plate 50, and a motor 40 and an electric control mainboard 60 installed inside the shielding box 30. The electric control mainboard 60 is electrically connected to the motor 40, the output shaft of the motor 40 is connected to the input end of the reduction box 10, a first through hole 301 is provided at the bottom of the shielding box 30, a second through hole 51 opposite to the first through hole 301 is provided on the antenna base plate 50, and the first transmission member 22 is respectively penetrated in the first through hole 301 and the second through hole 51.

[0041] The above-mentioned phase shift control device, on the one hand, when in use, the motor 40 drives the reduction box 10 to move, and the reduction box 10 can stably drive the first transmission member 22 to rotate, and the first transmission member 22 drives the screw 23 to rotate through the first bevel gear 221 and the second bevel gear 26. When the screw 23 rotates, it drives the screw member 24 to move, and then drives the push rod 25 to move back and forth in a straight line to adjust the phase shifter to achieve phase adjustment. It can be seen that the first bevel gear 221 and the second bevel gear 26 cooperate with each other to play a reversing role, so that the rotating shaft 222 can pass through the outside of the shielding box 30 perpendicular to the direction of the antenna bottom plate 50, and the screw 23 and the push rod 25 can be arranged in a direction parallel to the antenna bottom plate 50, which is convenient for connection with the phase shifter, and at the same time can achieve a compact overall structure and reduce the occupied space. On the other hand, the electronic control main board 60, the motor 40 and the reduction gearbox 10 are all arranged inside the shielding box 30. The shielding box 30 can play the function of shielding signals to prevent the signals of the electronic control main board 60 and the motor 40 from interfering with the antenna array located outside the shielding box 30 and causing unstable antenna performance defects, that is, it can improve the stability of the antenna.

[0042] The first through hole 301 and the second through hole 51 may cause the antenna array on the back of the antenna base plate 50 and the components on the front of the antenna base plate 50 to interfere with each other, thereby causing the antenna to be unstable.

[0043] Please refer to FIG. 2 and FIG. 3. In one embodiment, the phase shift control device further includes a shielding component 70 disposed between the antenna bottom plate 50 and the shielding box 30. The shielding component 70 is disposed around the circumference of the first through hole 301 and the second through hole 51, respectively, and the orthographic projection of the shielding component 70 on the bottom plate of the shielding box 30 is located at the periphery of the first through hole 301, and the orthographic projection of the shielding component 70 on the antenna bottom plate 50 is located at the periphery of the second through hole 51. In this way, the shielding component 70 can improve the shielding effect at the location of the first through hole 301 and the second through hole 51, achieve a complete shielding effect, and prevent the signals of the electric control mainboard 60 and the motor 40 from interfering with the antenna array located outside the shielding box 30, thereby preventing the antenna performance from being unstable due to the mutual interference of signals, thereby improving the stability of the antenna.

[0044] Please refer to FIG. 2 and FIG. 3. In one embodiment, the shielding assembly 70 includes a first protrusion 71 connected to the bottom of the shielding box 30 and a second protrusion 72 connected to the antenna bottom plate 50. The first protrusion 71 is formed with a first groove 711, and the second protrusion 72 extends into the first groove 711 and is spaced apart from the inner wall of the first groove 711; or, the second protrusion 72 is formed with a second groove, and the first protrusion 71 extends into the second groove and is spaced apart from the inner wall of the second groove. In this way, the first protrusion 71 and the second protrusion 72 are nested and matched to form a maze structure, which has a better shielding effect.

[0045] In addition, in order to form a gap between the first protrusion 71 and the second protrusion 72 without direct contact, the phase shift control device optionally further includes one or more supporting portions 80 connected between the shielding box 30 and the antenna bottom plate 50. The shielding box 30 is connected to the antenna bottom plate 50 through the supporting portions 80, so that the shielding box 30 is stably mounted on the antenna bottom plate 50.

[0046] Please refer to FIG. 2 and FIG. 3. In one embodiment, the shielding box 30 includes a main shell 31, a first cover 32 openably mounted on the top surface of the main shell 31, and a second cover 33 openably mounted on the side surface of the main shell 31. At least one circle of first conductive adhesive is provided at the connection position between the main shell 31 and the first cover 32, and at least one circle of second conductive adhesive is provided at the connection position between the main shell 31 and the second cover 33. In this way, the first conductive adhesive can effectively eliminate the assembly gap between the first cover 32 and the main shell 31, and improve the anti-interference ability of the internal and external signals of the shielding box 30; similarly, the second conductive adhesive can effectively eliminate the assembly gap between the second cover 33 and the main shell 31, and improve the anti-interference ability of the internal and external signals of the shielding box 30.

[0047] In one embodiment, an antenna includes the phase shift control device of any one of the above embodiments.

[0048] When the antenna is in use, the motor 40 drives the reduction box 10 to move, and the reduction box 10 can stably drive the first transmission member 22 to rotate. The first transmission member 22 drives the screw 23 to rotate through the first bevel gear 221 and the second bevel gear 26. When the screw 23 rotates, it drives the screw member 24 to move, and then drives the push rod 25 to move back and forth in a straight line to adjust the phase shifter to achieve phase adjustment. It can be seen that the first bevel gear 221 and the second bevel gear 26 cooperate with each other to play a reversing role, so that the rotating shaft 222 can pass through the outside of the shielding box 30 perpendicular to the direction of the antenna bottom plate 50, and the screw 23 and the push rod 25 can be arranged in a direction parallel to the antenna bottom plate 50, which is convenient for connection with the phase shifter, and at the same time can achieve a compact overall structure and reduce the occupied space.

[0049] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0050] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0052] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A phase-shift transmission assembly, characterized in that: The phase-shift transmission assembly comprises: A reduction box, the reduction box is used to be arranged inside the shielding box, and the input end of the reduction box is used to be connected to the output shaft of the motor; and A screw transmission mechanism, which is used to be installed on the antenna base plate, and the screw transmission mechanism includes a mounting base installed on the antenna base plate, a first transmission member rotatably connected to the mounting base, a screw rotatably connected to the mounting base, a screw threadedly matched with the screw and a push rod connected to the screw thread, the first transmission member includes a first bevel gear located outside the shielding box and a rotating shaft connected to the first bevel gear and extending through the interior of the reduction gear box and connected to the output end of the reduction gear box, the screw is connected to a second bevel gear meshing with the first bevel gear, and the push rod is slidably arranged on the mounting base along the axial direction of the screw, and the push rod is used to be connected to a phase shifter.

2. The phase-shift transmission assembly according to claim 1, characterized in that: The reduction box includes a driving gear and a driven gear meshing with the driving gear; the driving gear is connected to the output shaft of the motor, the driven gear is connected to the first transmission member, and both the driving gear and the driven gear are configured as bevel gears.

3. The phase-shift transmission assembly according to claim 2, characterized in that: The reduction box also includes a chassis, and the driving gear and the driven gear are rotatably arranged in the chassis; the chassis includes a detachably connected fixing block and a mounting block, and a first recess and a second recess are respectively formed on two side surfaces connected to each other by the fixing block and the mounting block, the first recess and the second recess are communicated with each other and form a first movable chamber for accommodating the driving gear and the driven gear, and a first axial hole and a second axial hole communicated with the first movable chamber, the connecting shaft of the driving gear is rotatably penetrated in the first axial hole, and the connecting shaft of the driven gear is rotatably penetrated in the second axial hole.

4. The phase-shift transmission assembly according to claim 1, characterized in that: The mounting seat includes a first clamp block and a second clamp block which are detachably connected; a third recess and a fourth recess are respectively formed on two side surfaces of the first clamp block and the second clamp block which are connected to each other, the third recess and the fourth recess are communicated with each other and form a second active chamber for accommodating the first bevel gear and the second bevel gear, and a third axial hole and a fourth axial hole communicated with the second active chamber, the connecting shaft of the first bevel gear is rotatably inserted into the third axial hole, and the connecting shaft of the second bevel gear is rotatably inserted into the fourth axial hole.

5. The phase-shift transmission assembly according to claim 1, characterized in that: The screw rod is respectively provided with a first stop portion and a second stop portion along its axial direction, and the screw-in component is respectively provided with a third stop portion and a fourth stop portion along its axial direction; when the screw-in component moves to a first extreme position along its axial direction, the third stop portion and the first stop portion abut against each other for limiting position; when the screw-in component moves to a second extreme position along its axial direction, the fourth stop portion and the second stop portion abut against each other for limiting position.

6. A phase shift control device, characterized in that: The phase-shift control device includes the phase-shift transmission assembly as described in any one of claims 1 to 5, and the phase-shift control device also includes an antenna base plate, a shielding box installed on the antenna base plate, and a motor and an electronic control mainboard installed inside the shielding box, the electronic control mainboard is electrically connected to the motor, the output shaft of the motor is connected to the input end of the reduction gearbox, a first through hole is provided on the bottom of the shielding box, a second through hole is provided on the antenna base plate opposite to the first through hole, and the first transmission member is respectively passed through the first through hole and the second through hole.

7. The phase shift control device according to claim 6, characterized in that: The phase shift control device also includes a shielding component arranged between the antenna base plate and the shielding box, and the shielding component is arranged circumferentially around the first through hole and the second through hole respectively, and the orthographic projection of the shielding component on the base plate of the shielding box is located at the periphery of the first through hole, and the orthographic projection of the shielding component on the antenna base plate is located at the periphery of the second through hole.

8. The phase shift control device according to claim 7, characterized in that: The shielding assembly includes a first protrusion connected to the bottom of the shielding box and a second protrusion connected to the antenna base plate; the first protrusion forms a first groove, the second protrusion extends into the first groove and is spaced apart from the inner wall of the first groove; or the second protrusion forms a second groove, the first protrusion extends into the second groove and is spaced apart from the inner wall of the second groove.

9. The phase shift control device according to claim 6, characterized in that: The shielding box includes a main shell, a first cover openably mounted on the top surface of the main shell, and a second cover openably mounted on the side surface of the main shell; at least one circle of first conductive adhesive is provided at the connection position between the main shell and the first cover, and at least one circle of second conductive adhesive is provided at the connection position between the main shell and the second cover.

10. An antenna, characterized in that: The antenna comprises the phase shift control device as described in any one of claims 6 to 9.

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