Phase shifter fixing component, phase shifter and base station antenna

Abstract

The present invention discloses a phase shifter fixing component, a phase shifter and a base station antenna, belonging to the field of communication technologies. The phase shifter fixing component includes: a sliding piece fixing block, on which N fixing structures are provided, where N is a positive integer; a sliding piece, on which N first waist-shaped slots are provided; a PCB fixing circuit board; N second waist-shaped slots are provided on the PCB fixing circuit board; N rotating buckles; each fixing structure respectively passes through the first waist-shaped slot and the second waist-shaped slot and is buckled with a corresponding rotating buckle. In the present invention, the sliding piece fixing block and the rotating buckle are buckled, which can improve the assembly and maintenance efficiency of the phase shifter. The heights of the rotating buckles are consistent, and the pressures when the rotating buckles and the sliding piece fixing block are tightly fitted are the same, so that the frictional resistances when the sliding piece and the PCB fixing circuit board slide relative to each other are the same, ensuring the reliability, consistency and smoothness of the sliding of the phase shifter, and ensuring the stability of the electrical performance of the phase shifter.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of communication technologies, and particularly to a phase shifter fixing component, a phase shifter, and a base station antenna. Background Art

[0002] With the rapid development of communication technologies, the performance indicators and stability requirements of base station antennas are getting higher and higher, and there are also higher requirements for cost control and the convenience of later maintenance. Therefore, the design difficulty of base station antennas is getting higher and higher, the cost control of assembly and repair is getting stricter, and the challenges are also getting greater. As a core component inside the base station antenna, how to design the structure of the phase shifter simply and reliably and improve production efficiency is the direction pursued by this industry.

[0003] The existing conductor sliding type phase shifter can change the electrical length of the phase shifter by moving the conductor to achieve the purpose of phase change. The phase shifter usually includes a PCB (Printed Circuit Board) fixing circuit and a sliding piece, and the sliding piece and the PCB fixing circuit board are connected by rivets or screws.

[0004] When connecting the sliding piece and the PCB circuit board by rivets or screws, too much time is occupied for assembly and repair, resulting in low efficiency; and because the pressure of each rivet or each screw during press fit is inconsistent, the frictional resistance during the relative sliding between the sliding piece and the PCB fixing circuit board is inconsistent, making it difficult to ensure the reliability and consistency of the phase shifter, and it has gradually become unsuitable for the current modern industrial production requirements. Summary of the Invention

[0005] Embodiments of the present invention provide a phase shifter fixing component, a phase shifter, and a base station antenna to solve the problems in the prior art. The technical solutions are as follows:

[0006] On the one hand, a phase shifter fixing component is provided, and the phase shifter fixing component includes:

[0007] A sliding piece fixing block, on which N fixing structures are provided, where N is a positive integer;

[0008] A sliding piece, on which N first waist-shaped slots are provided;

[0009] A printed circuit board PCB fixing circuit board; N second waist-shaped slots are provided on the PCB fixing circuit board;

[0010] N turnbuckles;

[0011] Each fixing structure respectively passes through the first waist-shaped slot and the second waist-shaped slot and is buckled with a corresponding turnbuckle.

[0012] In a possible implementation, each fixed structure includes a rotation center column and M card slots, where M is a positive integer;

[0013] The rotation center column is a convex structure located on the slide fixing block, and the M card slots are located within the slide fixing block.

[0014] In a possible implementation, each rotating buckle includes a rotating buckle guide groove and M hooks located in the upper half of the rotating buckle;

[0015] The rotation center column passes through the first waist-shaped groove and the second waist-shaped groove respectively, and is inserted into the rotating buckle guide groove in a corresponding rotating buckle;

[0016] After the rotating buckle rotates, the M hooks are respectively engaged with the M card slots.

[0017] In a possible implementation, a fixing groove is provided at the top of the rotation center column, and a fixing buckle is provided at the top of the rotating buckle guide groove;

[0018] After the rotating buckle rotates, the fixing buckle is engaged with the fixing groove.

[0019] In a possible implementation, the upper half or the lower half of the rotating buckle is connected to a transmission unit in the phase shifter, and the transmission unit is used to adjust the electrical length of the phase shifter.

[0020] In a possible implementation, the slide fixing block further includes multiple groups of guide posts, and each group of guide posts includes at least one guide post;

[0021] The slide moves horizontally under the cooperation of the guide posts and the second waist-shaped groove.

[0022] In a possible implementation, the distance between each group of guide posts and a corresponding rotation center column is less than a predetermined distance threshold.

[0023] In a possible implementation, N is 2.

[0024] In a possible implementation, M is 2.

[0025] On the one hand, a phase shifter is provided, and the phase shifter includes the phase shifter fixing assembly as described above.

[0026] On the one hand, a base station antenna is provided, and the base station antenna includes the phase shifter as described above.

[0027] The beneficial effects of the technical solution provided by the embodiments of the present invention at least include:

[0028] The phase shifter fixing component includes a sliding piece fixing block and a rotating buckle. Each fixing structure passes through the first waist-shaped slot on the sliding piece and the second waist-shaped slot on the PCB fixing circuit board respectively, and is buckled with a corresponding rotating buckle, so as to fix the sliding piece and the PCB fixing circuit board. Since the sliding piece fixing block and the rotating buckle are buckled, workers can completely operate manually during assembly and maintenance without the aid of tools, which is convenient for workers to directly repair or replace components. Compared with the traditional connection methods of rivets and screws, the working hours of this station can be greatly reduced, that is, the assembly and maintenance efficiency of the phase shifter can be improved. In addition, since the N rotating buckles are the same, the heights of the N rotating buckles are consistent. In this way, after buckling, the pressures of the rotating buckle and the sliding piece fixing block during pressing fit are consistent, so that the frictional resistances when the sliding piece and the PCB fixing circuit board slide relative to each other are consistent, ensuring the reliability, consistency and smoothness of the sliding of the phase shifter, and ensuring the stability of the electrical performance of the phase shifter. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0030] Figure 1 is an exploded view of a phase shifter fixing component in an embodiment of the present invention;

[0031] Figure 2 is a side view of a sliding piece fixing block in an embodiment of the present invention;

[0032] Figure 3 is a top view of a sliding piece fixing block in an embodiment of the present invention;

[0033] Figure 4 is a schematic diagram of a rotating buckle in an embodiment of the present invention;

[0034] Figure 5 is a schematic diagram of the installation of a sliding piece fixing block and a rotating buckle in an embodiment of the present invention;

[0035] Figure 6 is a schematic diagram of the installation of a sliding piece fixing block and a rotating buckle in an embodiment of the present invention;

[0036] Figure 7 is a schematic diagram of the installation of a sliding piece fixing block and a rotating buckle in an embodiment of the present invention;

[0037] Figure 8 is a side view of a phase shifter fixing component in an embodiment of the present invention;

[0038] Figure 9 is a top view of a phase shifter fixing component in an embodiment of the present invention;

[0039] Figure 10 is a schematic diagram of a phase shifter in an embodiment of the present invention;

[0040] Figure 11 is an exploded view of a fixing plate, a transmission unit and a phase shifter fixing component in an embodiment of the present invention;

[0041] Figure 12 is a schematic diagram of the front and back sides after the fixing plate, the transmission unit and the phase shifter fixing component are installed in an embodiment of the present invention. Detailed implementation manners

[0042] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will further describe the embodiments of the present invention in detail with reference to the accompanying drawings.

[0043] Please refer to Figure 1 , which shows a phase shifter fixing component provided by an embodiment of the present invention. The phase shifter fixing component includes: a sliding piece fixing block 110, a sliding piece 120, a PCB fixing circuit board 130, and N buckle buttons 140.

[0044] In this embodiment, the sliding piece fixing block 110 and the buckle buttons 140 can clamp the sliding piece 120 and the PCB fixing circuit board 130 from opposite sides, so as to fix the sliding piece 120 and the PCB fixing circuit board 130.

[0045] Among them, N fixing structures may be provided on the sliding piece fixing block 110. The sliding piece fixing block 110 cooperates with the N buckle buttons 140 through the N fixing structures to fix the sliding piece 120 and the PCB fixing circuit board 130. The positions of the N fixing structures on the sliding piece fixing block 110 can be arbitrary. For example, the N fixing structures are arranged in a row on the sliding piece fixing block 110, or the N fixing structures are arranged in a column on the sliding piece fixing block 110. This embodiment does not make a limitation.

[0046] N can be any positive integer, Figure 1 takes N as 2, and the two fixing structures are arranged in a row on the sliding piece fixing block 110 as an example for illustration.

[0047] In this embodiment, N first waist-shaped grooves 121 are provided on the sliding piece 120, and N second waist-shaped grooves 131 are provided on the PCB fixing circuit board 130 to facilitate passing through the fixing structures and the buckle buttons 140. That is, each fixing structure respectively passes through the first waist-shaped groove 121 and the second waist-shaped groove 131 and is buckled with a corresponding buckle button 140.

[0048] The following describes the fixed structure, the structure of the rotary buckle 140, and the buckling method between the two.

[0049] Each fixed structure in this embodiment may include a rotation center column 111 and M card slots 112. Among them, the rotation center column 111 is a protruding structure located on the slide piece fixing block 110, and the M card slots 112 are located inside the slide piece fixing block 110. Among them, M can be any positive integer. Figure 1 An example is given with M being 2.

[0050] Please refer to Figure 2 the side view of the slide piece fixing block 110 shown in Figure 2 in which two rotation center columns 111 are shown.

[0051] Please refer to Figure 3 the top view of the slide piece fixing block 110 shown in Figure 3 in which two fixed structures are shown, and each fixed structure includes a rotation center column 111 and two card slots 112.

[0052] Each rotary buckle 140 in this embodiment includes a rotary buckle guide groove 141 and M hooks 142 located in the upper half of the rotary buckle 140. Among them, the number of the hooks 142 is the same as the number of the card slots 112, so that each hook 142 can be buckled with a card slot 112. Please refer to Figure 4 the schematic diagram of the rotary buckle 140 shown in Figure 4 An example is given with M being 2.

[0053] When buckling the fixed structure and the rotary buckle 140, the hook 142 can be guided in the vertical direction through the rotation center column 111, so that the rotation center column 111 can respectively pass through the first waist-shaped groove 121 and the second waist-shaped groove 131 and be inserted into the rotary buckle guide groove 141 in a corresponding rotary buckle 140. After that, the rotary buckle 140 can be rotated. After the rotary buckle 140 rotates, the M hooks 142 are respectively buckled with the M card slots 112, thus completing the buckling of the fixed structure and the rotary buckle 140.

[0054] In order to prevent the rotary buckle 140 from loosening due to reverse rotation after the fixed structure and the rotary buckle 140 are buckled, in this embodiment, a fixing groove 113 is provided at the top of the rotation center column 111, and a fixing buckle 143 is provided at the top of the rotary buckle guide groove 141. The fixing buckle 143 can be a protruding structure. In this way, after the rotary buckle 140 rotates, the fixing buckle 143 can be buckled with the fixing groove 113, thereby preventing the rotary buckle 140 from reverse rotation.

[0055] Please refer to Figures 5 - 7 the installation schematic diagram of the slide piece fixing block 110 and the rotary buckle 140 shown in. The slide piece 120 and the PCB fixing circuit board 130 are not shown in the figure. During installation,Figure 5 The first step shown is to insert the rotation center post 111 into the rotary buckle guiding groove 141. Figure 6 The second step shown is to rotate the rotary buckle 140 clockwise so that the hook 142 engages with the slot 112. Figure 7 Shown is the sliding plate fixing block 110 and the rotary buckle 140 after engagement.

[0056] In this embodiment, the sliding plate fixing block 110 further includes multiple groups of guiding posts 114, and each group of guiding posts 114 includes at least one guiding post 114; the sliding plate 120 moves horizontally under the cooperation of the guiding posts 114 and the second waist-shaped groove 131.

[0057] Among them, each group of guiding posts 114 can be located around the rotation center post 111. That is, the distance between each group of guiding posts 114 and a corresponding rotation center post 111 is less than a predetermined distance threshold, and the value of the predetermined distance threshold is not limited in this embodiment.

[0058] The phase shifter fixing assembly in this embodiment can be applied to a phase shifter. The phase shifter further includes a transmission unit, and the upper half 1 or the lower half 2 of the rotary buckle 140 is connected to the transmission unit in the phase shifter. The transmission unit is used to adjust the electrical length of the phase shifter. Please refer to Figure 4 , Figure 4 which shows the upper half 1 and the lower half 2 of the rotary buckle 140.

[0059] Please refer to Figure 8 and 9 , Figure 8 which shows a side view of the installed phase shifter fixing assembly. Figure 9 which shows a top view of the installed phase shifter fixing assembly.

[0060] In summary, for the phase shifter fixing assembly provided in this embodiment, the phase shifter fixing assembly includes a sliding plate fixing block and a rotary buckle, and each fixing structure respectively passes through the first waist-shaped groove on the sliding plate and the second waist-shaped groove on the PCB fixing circuit board and engages with a corresponding rotary buckle to fix the sliding plate and the PCB fixing circuit board. Since the sliding plate fixing block and the rotary buckle are engaged, workers can completely operate manually during assembly and maintenance without the aid of tools, which is convenient for workers to directly repair or replace components. Compared with the traditional connection methods of rivets and screws, the working hours of this station can be greatly reduced, that is, the assembly and maintenance efficiency of the phase shifter can be improved. In addition, since the N rotary buckles are the same, the heights of the N rotary buckles are consistent. In this way, after engagement, the pressures during the pressing fit between the rotary buckle and the sliding plate fixing block are consistent, so that the frictional resistances when the sliding plate and the PCB fixing circuit board slide relative to each other are consistent, ensuring the reliability, consistency, and smoothness of the sliding of the phase shifter and ensuring the stability of the electrical performance of the phase shifter.

[0061] Please refer to Figure 10 , in Figure 10 In one embodiment shown, the phase shifter may include a fixed cavity 210, a transmission unit 220, and a phase shifter fixing component 230. The transmission unit 220 is fixed on the inner surface of the fixed cavity 210, and the phase shifter fixing component 230 is fixed on the outer surface of the fixed cavity 210. The lower half 2 of the turnbuckle 140 passes through the fixed cavity 210 and is connected to the transmission unit 220. In this way, the transmission unit 220 can adjust the electrical length of the phase shifter by moving, thereby adjusting the downward tilt angle of the antenna beam. That is, the electrical length of the phase shifter changes with the movement of the transmission unit 220, and the electrical length is used to adjust the downward tilt angle of the antenna beam.

[0062] Please refer to Figure 11 , Figure 11 An exploded view of the fixing plate 240, the transmission unit 220, and the phase shifter fixing component 230 is shown in Figure 11 In the transmission unit 220, the sliding piece fixing block 110, the sliding piece 120, the PCB fixing circuit board 130, the fixing plate 240, and two turnbuckles 140 are shown, and the upper half 1 of the turnbuckle 140 is connected to the transmission unit 220.

[0063] Please refer to Figure 12 , Figure 12 The front and back sides after the fixing plate 240, the transmission unit 220, and the phase shifter fixing component 230 are installed are shown.

[0064] This embodiment also provides a base station antenna with a phase shifter assembly. The base station antenna may include a phase shifter, and the phase shifter includes a phase shifter fixing component as in Figures 1 to 9 above.

[0065] The above does not serve to limit the embodiments of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiments of the present invention shall be included within the protection scope of the embodiments of the present invention.

Claims

1. A phase shifter fixing component, characterized in that The phase shifter fixing component includes: A sliding piece fixing block, on which there are N fixing structures, where N is a positive integer; A sliding piece, on which there are N first waist-shaped slots; A printed circuit board (PCB) fixing circuit board; on the PCB fixing circuit board, there are N second waist-shaped slots; N rotating buckles; Each fixing structure respectively passes through the first waist-shaped slot and the second waist-shaped slot and is buckled with a corresponding rotating buckle; Each fixing structure includes a rotating central column and M card slots, where M is a positive integer; the rotating central column is a protruding structure located on the sliding piece fixing block, and the M card slots are located inside the sliding piece fixing block; Each rotating buckle includes a rotating buckle guiding slot and M hooks located in the upper half of the rotating buckle; the rotating central column respectively passes through the first waist-shaped slot and the second waist-shaped slot and is inserted into the rotating buckle guiding slot in a corresponding rotating buckle; after the rotating buckle rotates, the M hooks are respectively buckled with the M card slots; At the top of the rotating central column, there is a fixing slot, and at the top of the rotating buckle guiding slot, there is a fixing buckle, which is a protruding structure; after the rotating buckle rotates, the fixing buckle is buckled with the fixing slot to prevent the rotating buckle from rotating in the reverse direction; The sliding piece fixing block further includes multiple groups of guiding columns, and each group of guiding columns includes at least one guiding column; the sliding piece moves horizontally under the cooperation of the guiding columns and the second waist-shaped slots; The distance between each group of guiding columns and a corresponding rotating central column is less than a predetermined distance threshold.

2. The phase shifter fixing component according to claim 1, wherein The upper half or the lower half of the rotating buckle is connected to a transmission unit in the phase shifter, and the transmission unit is used to adjust the electrical length of the phase shifter.

3. The phase shifter fixing component according to claim 1, wherein The N is 2, and the M is 2.

4. A phase shifter, characterized in that, The phase shifter includes the phase shifter fixing component according to any one of claims 1 to 3.

5. A base station antenna, characterized in that, The base station antenna includes the phase shifter according to claim 4.

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