Sector Phase Shifter Cable Fixing Device and Base Station Antenna

Abstract

The present invention provides a sector phase shifter cable fixing device and a base station antenna. The above-mentioned sector phase shifter cable fixing device includes: a support base and a cable fixing seat. The support base is configured to be connected to the sector phase shifter, and a T-shaped installation groove penetrating along its length direction is formed at the top of the support base; the cable fixing seat is provided with a cable buckle, and the cable fixing seat is slidably arranged in the T-shaped installation groove. Thus, in actual installation, multiple cable fixing seats can be arranged in the T-shaped installation groove. Then, when fixing the band wire, the installation position of the cable fixing seat can be adaptively adjusted in the T-shaped installation groove according to the installation requirements of different band wire spacings. It can be seen that the sector phase shifter cable fixing device provided by the present invention can meet the installation requirements of different band wire spacings, has strong applicability, and is convenient to install.

Description

Technical Field

[0001] The present invention relates to the technical field of communication antennas, and particularly to a cable fixing device for a sector phase shifter and a base station antenna. Background Art

[0002] The base station antenna realizes the beam downtilt adjustment of the base station antenna through a phase shifter, and has the advantages of a large adjustable range of the downtilt angle, high precision, good pattern control, strong anti-interference ability, easy control, etc. The phase shifter is a necessary component of the base station antenna. This device adjusts the downtilt angle of the antenna beam by changing the relative phase between the antenna elements, thereby facilitating the optimization of the communication network.

[0003] With the rapid development of communication technology, the structure of the base station antenna is becoming more and more complex. Among them, in the existing base station antenna, it is usually necessary to weld the strip line on the phase shifter to input the signal into the phase shifter and transmit the phase-adjusted signal to the oscillator. However, the existing phase shifter components usually have a relatively large overall size and occupy a large area in the reflector plane space. At the same time, there are many types of phase shifters, and there are many types of strip lines and installation requirements. The structure for fixing the strip line in the phase shifter component is fixed, resulting in different fixing structures being required for strip lines with different installation requirements.

[0004] That is to say, the structure for fixing the strip line in the existing phase shifter component is relatively single. For different phase shifters or strip line spacings with different requirements, different cable fixing devices need to be configured, resulting in a small applicability of the existing phase shifter component and a high production cost of the entire base station antenna. Summary of the Invention

[0005] In order to at least partially solve the above technical problems, the present invention provides a cable fixing device for a sector phase shifter and a base station antenna, which is used to solve the technical problem that different cable fixing devices need to be configured for different phase shifters or strip line spacings with different requirements in the prior art, and finally achieve the technical effect that the installation requirements of different strip line spacings can be satisfied by means of the same fixing device.

[0006] According to a first aspect of the present invention, there is provided a cable fixing device for a sector phase shifter, including:

[0007] A support base configured to be connected to the sector phase shifter, and a T-shaped installation groove extending along its length direction is formed at the top of the support base;

[0008] A cable fixing seat provided with a cable buckle, and the cable fixing seat is slidably arranged in the T-shaped installation groove.

[0009] A cable fixing device for a sector phase shifter according to the present invention, wherein a plurality of protruding portions are provided on the inner wall surface of the T-shaped mounting groove, and the plurality of protruding portions are arranged at intervals along the length direction of the support base, and the cable fixing seat is provided with engaging portions that can engage with the protruding portions.

[0010] A cable fixing device for a sector phase shifter according to the present invention, wherein the inner wall surface of the T-shaped mounting groove includes a first inner wall surface, a second inner wall surface and a third inner wall surface. Among them, the third inner wall surface is perpendicular to the height direction of the support base, the first inner wall surface and the second inner wall surface are arranged oppositely, and are respectively arranged on both sides of the third inner wall surface in the width direction of the support base;

[0011] The protruding portions are provided on the first inner wall surface and the second inner wall surface, and the cable fixing seat is provided with the engaging portions on both sides in the width direction of the support base.

[0012] A cable fixing device for a sector phase shifter according to the present invention, wherein the engaging portion includes a limiting elastic piece and a guiding elastic piece, wherein,

[0013] The limiting elastic piece and the guiding elastic piece are located on the same side of the cable fixing seat in the width direction of the support base, and the protruding portion can be clamped between the limiting elastic piece and the guiding elastic piece.

[0014] A cable fixing device for a sector phase shifter according to the present invention, wherein the protruding portion has an inclined surface and a supporting surface, the inclined surface is inclined with respect to the length direction of the support base and faces the inner wall surface on the opposite side, and the supporting surface is located on the other side of the inclined surface in the length direction of the support base;

[0015] One end of the limiting elastic piece close to the guiding elastic piece is provided with a first abutting surface, and one end of the guiding elastic piece close to the limiting elastic piece is provided with a second abutting surface. In a state where the protruding portion is clamped between the limiting elastic piece and the guiding elastic piece, the first abutting surface can abut against the inclined surface, and the second abutting surface can abut against the supporting surface.

[0016] A cable fixing device for a sector phase shifter according to the present invention, wherein the limiting elastic piece and the guiding elastic piece are further respectively provided with arc outer wall surfaces that can guide the movement of the protruding portion.

[0017] A cable fixing device for a sector phase shifter according to the present invention, wherein the support base is further provided with a stacking boss and a stacking buckle;

[0018] Wherein, the stacking bosses and the stacking buckles are both arranged at two ends of the support base in the length direction thereof, and the stacking bosses and the stacking buckles are respectively located on two sides of the support base in the height direction thereof, and the shapes of the stacking bosses and the stacking buckles are adapted to each other.

[0019] According to a sector phaser cable fixing device provided by the present invention, the support base is further provided with guide posts and guide grooves;

[0020] Wherein, the guide posts and the guide grooves are both arranged at two ends of the support base in the length direction thereof, and the guide posts and the guide grooves are respectively located on two sides of the support base in the height direction thereof, and the shapes of the guide posts and the guide grooves are adapted to each other.

[0021] According to a sector phaser cable fixing device provided by the present invention, the support base is further provided with assembly through grooves and positioning elastic pieces,

[0022] Wherein, the number of the assembly through grooves is two, and the two assembly through grooves both extend along the width direction of the support base and penetrate through both ends, and the two assembly through grooves are both located at the bottom of the support base and are arranged opposite to each other;

[0023] One end of the positioning elastic piece is fixed, and the other end extends outward along the width direction of the support base to form a free end, and a positioning bump is arranged on the free end of the positioning elastic piece on a side close to the assembly through groove in the height direction of the support base.

[0024] According to a second aspect of the present invention, a base station antenna is further provided, which includes a sector phaser and the sector phaser cable fixing device according to any one of the first aspects of the present invention, and the sector phaser cable fixing device is arranged on the sector phaser.

[0025] The sector phaser cable fixing device provided by the present invention includes a support base and a cable fixing seat. Wherein, the support base is provided with a T-shaped installation groove, and the cable fixing seat can be slidably arranged in the T-shaped installation groove. Thus, in actual installation, a plurality of cable fixing seats can be arranged in the T-shaped installation groove, and then when fixing the lead wires, the installation positions of the cable fixing seats can be adaptively adjusted in the T-shaped installation groove according to the installation requirements of different lead wire spacings. It can be seen that the sector phaser cable fixing device provided by the present invention can meet the installation requirements of different lead wire spacings, has strong applicability, and is convenient for installation. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 is a schematic structural diagram of a sector phase shifter cable fixing device according to an embodiment of the present invention;

[0028] Figure 2 is Figure 1 a schematic structural diagram of a support base in the sector phase shifter cable fixing device shown;

[0029] Figure 3 is Figure 2 a schematic structural diagram of another perspective of the support base shown;

[0030] Figure 4 is Figure 2 a top view of the support base shown;

[0031] Figure 5 is Figure 2 a partial enlarged view of a T-shaped installation groove in the support base shown;

[0032] Figure 6 is Figure 1 a schematic structural diagram of a cable fixing seat in the sector phase shifter cable fixing device shown;

[0033] Figure 7 is Figure 1 a schematic structural diagram of the connection between the sector phase shifter cable fixing device and an installation substrate shown;

[0034] Figure 8 is a schematic structural diagram of the sector phase shifter cable fixing device fixing a cable according to an embodiment of the present invention;

[0035] Figure 9 is another schematic structural diagram of the sector phase shifter cable fixing device fixing a cable according to an embodiment of the present invention;

[0036] Figure 10 is a schematic structural diagram of the stacked arrangement of the sector phase shifter cable fixing devices according to an embodiment of the present invention.

[0037] Reference numerals:

[0038] 100. Support base; 110. T-shaped installation groove; 111. First inner wall surface; 112. Second inner wall surface; 113. Third inner wall surface; 114. First limiting plate; 115. Second limiting plate; 120. Protrusion; 121. Inclined surface; 122. Support surface; 131. Stacking boss; 132. Stacking buckle; 133. Guide post; 134. Guide groove; 135. Assembly through slot; 136. Positioning elastic piece; 137. Positioning bump; 200. Cable fixing base; 210. Cable buckle; 221. Guide elastic piece; 222. Limiting elastic piece; 300. Installation substrate; 301. Positioning hole; 400. Lead wire. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0040] According to an embodiment of the present invention, a cable fixing device for a sector phase shifter is provided. The cable fixing device for the sector phase shifter can be arranged between a reflector and a phase shifter of a base station antenna. The device can meet the installation requirements of different lead wire spacings and can be adapted to different sector phase shifters. The following will be combined with Figures 1 to 10 Describe the cable fixing device for the sector phase shifter of the present invention.

[0041] Specifically, as Figures 1 to 6 shown, the cable fixing device for the sector phase shifter in this embodiment includes: a support base 100 and a cable fixing base 200. Exemplarily, both the support base 100 and the cable fixing base 200 are plastic parts.

[0042] Among them, the support base 100 is configured to be connected to the sector phase shifter, and a T-shaped installation groove 110 penetrating along its length direction is formed at the top of the support base 100.

[0043] The cable fixing base 200 is provided with a cable buckle 210, and the cable fixing base 200 is detachably arranged in the T-shaped installation groove 110. For example, as Figure 6 shown, the cable buckle 210 includes two oppositely arranged arc-shaped structures, and the lead wire to be fixed can be clamped between the two arc-shaped structures.

[0044] In this embodiment, the support base 100 is a long strip-shaped structure, the T-shaped installation groove 110 is arranged penetrating along the length direction of the support base 100, and the cable fixing base 200 can slide from one end of the T-shaped installation groove 110 to the other end.

[0045] Thus, in actual use, the cable fixing base 200 that can fix the lead wire can be selected according to the specification of the lead wire first, and then these cable fixing bases 200 are arranged in the T-shaped installation groove 110. After that, according to the installation requirements of different lead wire spacings, the position of the cable fixing base 200 in the T-shaped installation groove 110 is adjusted.

[0046] Exemplarily, as Figure 8 shown, when the fan-shaped phase shifter cable fixing device needs to be installed on both sides of the six-port fan-shaped phase shifter respectively, each fan-shaped phase shifter cable fixing device needs to fix three lead wires 400. At this time, 3 cable fixing bases 200 that can fix the lead wire 400 can be arranged in the T-shaped installation groove 110, and then the installation positions of the 3 cable fixing bases 200 in the T-shaped installation groove 110 are adjusted, and finally the installation of the lead wire is realized.

[0047] As Figure 9 shown, when the fan-shaped phase shifter cable fixing device needs to be installed on both sides of the eight-port fan-shaped phase shifter respectively, each fan-shaped phase shifter cable fixing device needs to fix four lead wires 400. At this time, 4 cable fixing bases 200 that can fix the lead wire 400 can be arranged in the T-shaped installation groove 110, and then the installation positions of the 4 cable fixing bases 200 in the T-shaped installation groove 110 are adjusted, and finally the installation of the lead wire is realized.

[0048] In order to effectively fix the cable fixing base 200, as Figure 2 , Figure 4 and Figure 5 shown, a plurality of protrusions 120 are provided on the inner wall surface of the T-shaped installation groove 110. The plurality of protrusions 120 are arranged at intervals along the length direction of the support base 100. For example, the distance between adjacent protrusions 120 can be 5 mm. The cable fixing base 200 is provided with a clamping portion that can engage with the protrusion 120.

[0049] Thus, in actual use, after the cable fixing base 200 moves to a predetermined position in the T-shaped installation groove 110, the cable fixing base 200 can be effectively positioned by means of the cooperation between the protrusion and the clamping portion.

[0050] It can be understood that a plurality of protrusions 120 are provided in the T-shaped installation groove 110, and different protrusions 120 correspond to different installation positions. When fixing the lead wire, the protrusion 120 to be used can be determined according to the installation requirements first, and then the cable fixing base 200 is installed to a predetermined position in the T-shaped installation groove 110. Under the cooperation of the protrusion 120 and the clamping portion, the cable fixing base 200 can be effectively fixed in the T-shaped installation groove 110.

[0051] Furthermore, asFigure 5 As shown, the inner wall surface of the T-shaped mounting groove 110 includes a first inner wall surface 111, a second inner wall surface 112, and a third inner wall surface 113.

[0052] Among them, the third inner wall surface 113 is perpendicular to the height direction of the support base 100. The first inner wall surface 111 and the second inner wall surface 112 are respectively arranged on both sides of the third inner wall surface 113 in the width direction of the support base 100 and are oppositely arranged. The convex portion 120 is arranged on the first inner wall surface 111 and the second inner wall surface 112; the cable fixing base 200 is provided with clamping portions on both sides in the width direction of the support base 100.

[0053] It can be understood that the first inner wall surface 111, the third inner wall surface 113, and the second inner wall surface 112 are connected in sequence and are roughly formed into a U-shaped groove. After the cable fixing base 200 is installed into the T-shaped mounting groove 110, the cable fixing base 200 is located between the first inner wall surface 111 and the second inner wall surface 112, and the bottom surface of the cable fixing base 200 can abut against the third inner wall surface 113. At the same time, the clamping portions on both sides of the cable fixing base 200 can be respectively engaged with the convex portion 120 on the first inner wall surface 111 and the convex portion 120 on the second inner wall surface 112.

[0054] Thus, through the engagement of the clamping portions on both sides of the cable fixing base 200 with the convex portion 120 in the T-shaped mounting groove 110, the cable fixing base 200 can be fixed from both sides in the width direction of the support base 100.

[0055] Of course, in other embodiments, the convex portion 120 can also be provided only on the first inner wall surface 111 or the second inner wall surface 112. Correspondingly, the cable fixing base 200 only needs to be provided with a clamping portion on one side. At this time, the side of the cable fixing base 200 without the clamping portion can form a flat structure, and this flat structure can abut against the inner wall surface without the convex portion 120 when the cable fixing base 200 is installed into the T-shaped mounting groove 110.

[0056] Furthermore, in this embodiment, as Figure 6 shown, the clamping portion includes a limiting elastic piece 222 and a guiding elastic piece 221.

[0057] Among them, the limiting elastic piece 222 and the guiding elastic piece 221 are located on the same side of the cable fixing base 200 in the width direction of the support base 100, and the convex portion 120 can be clamped between the limiting elastic piece 222 and the guiding elastic piece 221.

[0058] In an alternative embodiment, in order to facilitate the movement of the protrusion 120 between the limiting elastic piece 222 and the guiding elastic piece 221, and to facilitate the movement of the protrusion 120 out from between the limiting elastic piece 222 and the guiding elastic piece 221, the limiting elastic piece 222 and the guiding elastic piece 221 are respectively provided with arc outer wall surfaces capable of guiding the movement of the protrusion 120.

[0059] Specifically, during actual installation, after the cable fixing base 200 slides into the T-shaped installation groove 110, the arc outer wall surface of the guiding elastic piece 221 first contacts the protrusion 120. Since both the protrusion 120 and the guiding elastic piece 221 are made of plastic, under the action of an external thrust, both the protrusion 120 and the guiding elastic piece 221 undergo elastic deformation. The cable fixing base 200 continues to slide forward. When the protrusion 120 reaches between the guiding elastic piece 221 and the limiting elastic piece 222, the protrusion 120 and the guiding elastic piece 221 return to their initial states. At this time, the protrusion 120 is clamped between the guiding elastic piece 221 and the limiting elastic piece 222.

[0060] In an alternative embodiment, the guiding elastic piece 221 and the limiting elastic piece 222 are respectively located on both sides of the cable fixing base 200 in the length direction of the support base 100. One end of the guiding elastic piece 221 away from the limiting elastic piece 222 is fixed, and the other end extends towards the limiting elastic piece 222 to form a free end. At the same time, there is a sufficient gap between the free end of the guiding elastic piece 221 close to the limiting elastic piece 222 and the cable buckle 210 in the width direction of the support base 100, so that there is sufficient deformation space when the guiding elastic piece 221 contacts the protrusion 120 and undergoes elastic deformation.

[0061] In order to prevent the cable fixing base 200 from shifting in position in the T-shaped installation groove 110, it is necessary to stably and effectively clamp the protrusion 120 by means of the guiding elastic piece 221 and the limiting elastic piece 222.

[0062] For this, in this embodiment, as Figure 5 shown, the protrusion 120 has an inclined surface 121 and a support surface 122. The inclined surface 121 is inclined with respect to the length direction of the support base 100 and faces the inner wall surface of the opposite side. The support surface 122 is located on the other side of the inclined surface 121 in the length direction of the support base 100. Optionally, the support surface 122 can be perpendicular to the inner wall surface where the protrusion 120 is located. At this time, the protrusion 120 can be formed into a right-angled helical tooth structure. With this structure, the directional sliding of the cable fixing base 200 can be realized.

[0063] Correspondingly, a first abutting surface is provided at an end of the limiting elastic piece 222 close to the guiding elastic piece 221, and a second abutting surface is provided at an end of the guiding elastic piece 221 close to the limiting elastic piece 222. In a state where the convex portion 120 is clamped between the limiting elastic piece 222 and the guiding elastic piece 221, the first abutting surface can abut against the inclined surface 121, and the second abutting surface can abut against the supporting surface 122.

[0064] Thus, in practical applications, after the convex portion 120 slides between the limiting elastic piece 222 and the guiding elastic piece 221, by virtue of the abutment between the first abutting surface and the inclined surface 121, and the abutment between the second abutting surface and the supporting surface 122, the cable fixing base 200 can be stably and effectively positioned. Exemplarily, the first abutting surface can be an arc surface, which can not only abut against the inclined surface 121, but also play a guiding role when the cable fixing base 200 is further moved subsequently. The second abutting surface can be a flat surface, which can play a limiting role when abutting against the supporting surface 122.

[0065] After that, when it is necessary to adjust the position of the cable fixing base 200, the cable fixing base 200 can be continuously pushed forward. Since the limiting elastic piece 222 is also made of plastic, at this time, the limiting elastic piece 222 will also generate elastic deformation when further abutting against the convex portion 120.

[0066] In this embodiment, since the limiting elastic piece 222 is also provided with an arc outer wall surface, the convex portion 120 can also gradually disengage from the cable fixing base 200 under the guidance of the arc outer wall surface.

[0067] Correspondingly, in order to enable the limiting elastic piece 222 to generate elastic deformation, one end of the limiting elastic piece 222 far from the guiding elastic piece 221 is fixed, and the other end extends towards the guiding elastic piece 221 to form a free end. At the same time, there is a sufficient gap between the free end of the limiting elastic piece 222 close to the guiding elastic piece 221 and the cable buckle 210 in the width direction of the support base 100, so that there is sufficient deformation space when the limiting elastic piece 222 contacts the convex portion 120 and generates elastic deformation.

[0068] In an alternative embodiment, both the guiding elastic piece 221 and the limiting elastic piece 222 can be configured as arc-shaped strip structures.

[0069] Furthermore, in order to effectively position the cable fixing base 200 in the height direction of the support base 100, in this embodiment, as Figure 5As shown, for the T-shaped mounting groove 110, on one side of the first inner wall surface 111 away from the third inner wall surface 113, there is a first limiting plate 114 extending towards the second inner wall surface 112, and on one side of the second inner wall surface 112 away from the third inner wall surface 113, there is a second limiting plate 115 extending towards the first inner wall surface 111. Moreover, both the first limiting plate 114 and the second limiting plate 115 extend along the length direction of the support base 100.

[0070] Thus, after the cable fixing base 200 is installed into the T-shaped mounting groove 110, in the height direction of the support base 100, the clamping portions at both ends of the cable fixing base 200 can be respectively clamped between the first limiting plate 114 and the third inner wall surface 113, and between the second limiting plate 115 and the third inner wall surface 113.

[0071] In this embodiment, the support base 100 can also adopt a stacked fixed setting method in its height direction.

[0072] Specifically, as Figure 2 and Figure 3 shown, the support base 100 is further provided with a stacking boss 131 and a stacking buckle 132.

[0073] Among them, both the stacking boss 131 and the stacking buckle 132 are arranged at both ends of the support base 100 in the length direction, and are respectively located on both sides of the support base 100 in the height direction. The shape of the stacking boss 131 is adapted to the shape of the stacking buckle 132.

[0074] Thus, when multiple support bases 100 are stacked, for two adjacent support bases 100, the stacking boss 131 of one support base 100 can be engaged into the stacking buckle 132 of the adjacent other support base 100.

[0075] In this embodiment, the stacking boss 131 is arranged on the top of the support base 100 and extends outward along the length direction of the support base 100. At the same time, the stacking boss 131 has an arc surface that can be clamped to the stacking buckle 132. The stacking buckle 132 is arranged at the bottom of the support base 100 and is provided with an opening that can accommodate the stacking boss 131. As Figure 10 shown, the stacking boss 131 located on the lower support base 100 can be clamped into the stacking buckle 132 of the upper support base 100.

[0076] Furthermore, in order to facilitate the positioning of multiple stacked support bases 100, in this embodiment, as Figure 2 and Figure 3 shown, the support base 100 is further provided with a guide post 133 and a guide groove 134.

[0077] Among them, the guide posts 133 and the guide grooves 134 are both arranged at two ends of the support base 100 in the length direction, and are respectively located on both sides of the support base 100 in the height direction of the support base 100. The shapes of the guide posts 133 and the guide grooves 134 are adapted to each other.

[0078] Thus, when multiple support bases 100 are stacked, for two adjacent support bases 100, the guide posts 133 of one support base 100 can be inserted into the guide grooves 134 of the adjacent other support base 100.

[0079] In this embodiment, the guide posts 133 are arranged on the top of the support base 100 and extend upward along the height direction of the support base 100. The guide grooves 134 are arranged at the bottom of the support base 100, and the guide grooves 134 extend downward along the height direction of the support base 100. At the same time, the guide grooves 134 are provided with openings capable of accommodating the guide posts 133. As Figure 10 shown, the guide posts 133 located on the lower support base 100 can be inserted into the guide grooves 134 of the upper support base 100.

[0080] It can be understood that with the continuous development of communication technology, the complexity of antennas is getting higher and higher. In the layout where antenna devices are placed vertically or stacked, by setting the stacking bosses 131 and stacking buckles 132, as well as the guide posts 133 and guide grooves 134 in this embodiment, the problem of shaking during stacking of the sector phase shifters can be solved, and the sector phase shifters with different strip line spacings can be matched.

[0081] In addition, the support base 100 needs to be arranged on the mounting substrate 300 of the phase shifter. For the convenience of installation, in this embodiment, as Figure 2 and Figure 3 shown, the support base 100 is further provided with an assembly through groove 135 and a positioning elastic piece 136.

[0082] Among them, the number of the assembly through grooves 135 is two. The two assembly through grooves 135 both extend along the width direction of the support base 100 and penetrate through both ends. The two assembly through grooves 135 are both located at the bottom of the support base 100 and are arranged opposite to each other; one end of the positioning elastic piece 136 is fixed, and the other end extends outward along the width direction of the support base 100 to form a free end. And the positioning elastic piece 136 is provided with a positioning bump 137 on the side close to the assembly through groove 135 in the height direction of the support base 100.

[0083] In this embodiment, the assembly through grooves 135 can be arranged on the opposite side walls of the two guide grooves 134 and at the top of the guide grooves 134.

[0084] During actual installation, asFigures 7 to 10 As shown, the bottom surface of the support base 100 and the top surface of the mounting substrate 300 can be brought closer to each other and lie in the same plane, and two opposite sides of the mounting substrate 300 are respectively inserted into two assembly through grooves 135 at the bottom of the support base 100. Then, the support base 100 is pushed in the width direction of the support base 100 so that the two sides of the mounting substrate 300 fully enter the assembly through grooves 135. When the bottom surface of the support base 100 gradually adheres to the top surface of the mounting substrate 300 and reaches a predetermined position, the positioning bumps 137 on the positioning elastic pieces 136 are clamped into the positioning holes 301 of the mounting substrate 300. Thus, in a side-sliding manner, by means of the assembly through grooves 135 and the positioning bumps 137 on the positioning elastic pieces 136, the support base 100 can be stably and accurately fixed on the mounting substrate 300 without screw fastening, and the installation is quick and convenient.

[0085] Exemplarily, in the present embodiment, as Figure 7 shown, two oval positioning holes 301 are provided on the mounting substrate 300, and correspondingly, two oval positioning elastic pieces 136 are provided on the support base 100.

[0086] In the present embodiment, a base station antenna is further provided. The base station antenna includes a sector phase shifter and the sector phase shifter cable fixing device in the above embodiment, wherein the sector phase shifter cable fixing device is arranged on the sector phase shifter.

[0087] It can be seen that the sector phase shifter cable fixing device in the present embodiment has the following advantages:

[0088] (1) By adopting the design method of the chute, a plurality of cable fixing seats can be installed in the T-shaped installation groove of the support base, and according to the installation requirements of the tape line spacing, the positions of the cable fixing seats can be flexibly adjusted to facilitate adaptation to a variety of different phase shifters;

[0089] (2) With the cooperation between the convex portion and the clamping portion, the cable fixing seat can be effectively fixed in the T-shaped installation groove. At the same time, since both the support base and the cable fixing seat can generate elastic deformation, the cable fixing seat can also be conveniently removed according to the installation requirements;

[0090] (3) Through the cooperation between the stacking bosses and the stacking buckles, and the cooperation between the guiding posts and the guiding grooves, the stacked installation of the tape lines can be realized, which can meet more installation requirements;

[0091] (4) Based on the setting method of the assembly through grooves and the positioning elastic pieces, the whole assembly can be made more convenient and fast, and at the same time, the structural stability can be ensured.

[0092] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0093] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cable fixing device for a sector phase shifter, characterized in that, Comprising: A support base configured to be connected to a sector phase shifter, and a T-shaped mounting groove extending through the top of the support base along its length direction is formed; A cable fixing seat provided with a cable buckle, and the cable fixing seat is slidably arranged in the T-shaped mounting groove; The support base is further provided with an assembly through groove and a positioning elastic piece, wherein, the number of the assembly through grooves is two, both of the two assembly through grooves extend along the width direction of the support base and penetrate through both ends, and both of the two assembly through grooves are located at the bottom of the support base and are arranged opposite to each other; One end of the positioning elastic piece is fixed, and the other end extends outward along the width direction of the support base to form a free end, and a positioning bump is arranged on one side of the free end of the positioning elastic piece close to the assembly through groove in the height direction of the support base.

2. The cable fixing device of the sector phase shifter according to claim 1, characterized in that A plurality of protruding portions are arranged on the inner wall surface of the T-shaped mounting groove, and the plurality of protruding portions are arranged at intervals along the length direction of the support base, and the cable fixing seat is provided with a clamping portion capable of engaging with the protruding portions.

3. The sector phase shifter cable fixing device according to claim 2, characterized in that, The inner wall surface of the T-shaped mounting groove includes a first inner wall surface, a second inner wall surface and a third inner wall surface, wherein, the third inner wall surface is perpendicular to the height direction of the support base, the first inner wall surface and the second inner wall surface are arranged opposite to each other, and are respectively arranged on both sides of the third inner wall surface in the width direction of the support base; The protruding portions are arranged on the first inner wall surface and the second inner wall surface, and the clamping portions are arranged on both sides of the cable fixing seat in the width direction of the support base.

4. The sector phase shifter cable fixing device according to claim 2, characterized in that, The clamping portion includes a limiting elastic piece and a guiding elastic piece, wherein, the limiting elastic piece and the guiding elastic piece are located on the same side of the cable fixing seat in the width direction of the support base, and the protruding portion can be clamped between the limiting elastic piece and the guiding elastic piece.

5. The sector phase shifter cable fixing device according to claim 4, characterized in that, The protruding portion has an inclined surface and a supporting surface, the inclined surface is inclined to the length direction of the support base and faces the inner wall surface of the opposite side, and the supporting surface is located on the other side of the inclined surface in the length direction of the support base; A first abutting surface is arranged at one end of the limiting elastic piece close to the guiding elastic piece, a second abutting surface is arranged at one end of the guiding elastic piece close to the limiting elastic piece, and in a state where the protruding portion is clamped between the limiting elastic piece and the guiding elastic piece, the first abutting surface can abut against the inclined surface, and the second abutting surface can abut against the supporting surface.

6. The sector phase shifter cable fixing device according to claim 4, wherein The limiting elastic piece and the guiding elastic piece are further respectively provided with an arc outer wall surface capable of guiding the movement of the protruding portion.

7. The sector phase shifter cable fixing device according to any one of claims 1 to 6, characterized in that The support base is further provided with a stacking boss and a stacking buckle; wherein, the stacking boss and the stacking buckle are both arranged at both ends of the support base in the length direction, and the stacking boss and the stacking buckle are respectively located on both sides of the support base in the height direction of the support base, and the shapes of the stacking boss and the stacking buckle are mutually adapted.

8. The sector phase shifter cable fixing device according to any one of claims 1 to 6, characterized in that, The support base is further provided with a guiding column and a guiding groove; Wherein, the guiding columns and the guiding grooves are respectively arranged at two ends of the supporting base in the length direction thereof, and the guiding columns and the guiding grooves are respectively located at two sides of the supporting base in the height direction thereof, and the shapes of the guiding columns and the guiding grooves are adapted to each other.

9. A base station antenna, characterized in that, It includes a sector phase shifter and a sector phase shifter cable fixing device as described in any one of claims 1 to 8, and the sector phase shifter cable fixing device is arranged on the sector phase shifter.

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