A resilient joint type base station antenna

Abstract

A resilient joint type base station antenna comprises a radome and a reflector, wherein a resilient joint seat is arranged on the reflector, an antenna joint is fixed on the resilient joint seat, and an opening corresponding to the resilient joint seat is arranged on the radome; the resilient joint seat comprises a lower fixing seat fixed on the reflector and an upper fixing seat connected to the antenna joint, a locking mechanism is arranged between the upper fixing seat and the lower fixing seat or between the upper fixing seat and the reflector for locking the upper fixing seat when the antenna joint is retracted into the radome with the upper fixing seat, and an elastic element is arranged between the upper fixing seat and the lower fixing seat or the reflector for pushing the upper fixing seat to make the antenna joint extend out of the radome when the locking mechanism is released. The resilient joint seat of the base station antenna enables the antenna joint to be pre-assembled on the reflector, and its retractable structure avoids adverse effects on the installation of the radome, overcomes the problems of cumbersome assembly and disassembly of the antenna back-out joint, poor operability, etc., and has a compact structure, which improves assembly efficiency.

Description

Technical Field

[0001] The invention relates to a communication base station antenna, in particular to a resilient joint type base station antenna. Background Art

[0002] The base station antenna is the main component used to transmit and receive wireless communication signals in a mobile communication base station. The base station antenna usually includes a radome, a reflector, a radiation unit for transmitting and receiving wireless signals, and electronic components for processing signals. The electronic components arranged in the radome are connected to external devices through the antenna connector on the radome. At present, some antennas adopt a structural form in which the antenna connector is arranged on the back of the radome (i.e., the side opposite to the back of the reflector), i.e., the antenna back connector. Since the antenna connector protrudes from the outer surface of the radome, in order not to hinder the assembly of the radome, the antenna connector cannot be pre-installed. It is necessary to wait until the internal components of the antenna are assembled and the radome is installed in place before installing the antenna connector. In the prior art, there are two main ways to fix the antenna back connector structure. One is that the radome has embedded nuts and the connector is directly fixed on the radome; the other is to use a support frame, and after the radome is installed, it is fixed to the support frame. These two methods are troublesome to install and disassemble, cannot be prefabricated and installed, and are not convenient for later maintenance. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defect that the above-mentioned antenna connector cannot be pre-installed, and to provide a resilient connector type base station antenna.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a resilient joint type base station antenna, comprising an antenna cover and a reflecting plate arranged in the antenna cover, a resilient joint seat is arranged on the reflecting plate, an antenna connector is fixed on the resilient joint seat, and an opening corresponding to the resilient joint seat is arranged on the antenna cover for allowing the antenna connector to be retracted or extended; the resilient joint seat comprises a lower fixing seat for fixing on the reflecting plate and an upper fixing seat for connecting the antenna connector, the upper fixing seat cooperates with the lower fixing seat, a locking mechanism is provided between the upper fixing seat and the lower fixing seat or between the upper fixing seat and the reflecting plate for locking the upper fixing seat when the antenna connector is retracted into the antenna cover with the upper fixing seat, and an elastic element is provided between the upper fixing seat and the lower fixing seat or the reflecting plate for pushing the upper fixing seat to make the antenna connector extend out of the antenna cover when the locking mechanism is released.

[0005] The locking mechanism comprises a limit clamping column arranged at the lower part of the upper fixing seat and a rebound fastener arranged on the reflecting plate or the lower fixing seat and used for locking the limit clamping column.

[0006] The reflective plate is provided with a rebound fastener mounting hole, and the rebound fastener mounting hole is engaged with a hook on the side of the rebound fastener.

[0007] A lower buckle is provided at the lower part of the lower fixing seat, and a lower fixing seat mounting hole matched with the lower buckle is provided on the reflecting plate.

[0008] The upper part of the lower fixing seat is provided with a guide column matched with the upper fixing seat, and the lower part of the upper fixing seat is provided with a positioning sleeve column matched with the guide column.

[0009] The end of the guide column is provided with an upper buckle which is used to pass through the positioning sleeve column and be clamped at its port.

[0010] The elastic element is a spring sleeved on the guide column.

[0011] The elastic element is a spring or a spring sheet arranged between the upper fixing seat and the lower fixing seat or the reflecting plate.

[0012] The upper fixing seat is provided with a cable fixing body for fixing cables, the side of the cable fixing body is provided with a side wire passing hole, and the upper part is provided with a top wire passing hole connected to the top surface of the upper fixing seat.

[0013] A line card is arranged in the cable fixing body.

[0014] The beneficial effects of the present invention are as follows: the connector seat of the base station antenna is divided into a matching upper fixing seat and a lower fixing seat, and a locking mechanism and an elastic element are provided to form a resilient connector seat, so as to realize the contraction, fixation and rebound of the antenna connector. The antenna connector can be pre-assembled on the reflector plate, and its retractable structure can be used to avoid adverse effects on the installation of the antenna cover. After the antenna cover is installed in place, it can rebound and extend out of the antenna cover to connect the antenna cable. This structure overcomes the problems of cumbersome assembly and disassembly of the antenna back connector and poor operability. It has a compact structure, realizes a simplified design for the assembly of the base station antenna back structure, and improves assembly efficiency.

[0015] Furthermore, a snap-on connection structure is used between the spring-back connector seat and the reflector, as well as between the internal components of the spring-back connector seat, which is convenient for installation and disassembly. All parts are plastic injection molded, with good insulation performance, ensuring the stability of the overall PIM performance of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric schematic diagram of the overall effect of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the springback joint seat of the present invention.

[0018] Figure 3 It is a structural schematic diagram of a rebound fastener in a rebound type joint seat.

[0019] Figure 4 It is a structural schematic diagram of the upper fixed seat in the rebound type joint seat.

[0020] Figure 5 It is a structural schematic diagram of the other side of the upper fixed seat.

[0021] Figure 6 It is a structural schematic diagram of the lower fixing seat in the rebound type joint seat.

[0022] Figure 7 It is a structural schematic diagram of the other side of the lower fixed seat.

[0023] Figure 8 It is a schematic diagram of the structure of the reflector.

[0024] Fig. 9 It is a schematic diagram of the spring-back joint seat in the pressed down state.

[0025] Fig.10 This is a schematic diagram of the antenna connector extending out of the antenna cover.

[0026] Markings in the figure: 1. Antenna cover, 2. Reflector, 3. Rebound connector seat, 4. Antenna connector, 5. Opening, 6. Lower fixing seat, 7. Upper fixing seat, 8. Limiting column, 9. Rebound fastener, 10. Rebound fastener mounting hole, 11. Lower buckle, 12. Lower fixing seat mounting hole, 13. Guide column, 14. Positioning sleeve column, 15. Upper buckle, 16. Spring, 17. Cable fixing body, 18. Side wire hole, 19. Top wire hole, 20. Wire clip, 21. Locking clip, 22. Hook, 23. Connector mounting hole, 24. Inlaid nut. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings and specific implementation methods. The specific contents listed in the following embodiments are not limited to the technical features necessary for the technical problems to be solved by the technical solutions recorded in the claims. At the same time, the enumerated embodiments are only part of the present invention, not all embodiments.

[0028] like Figure 1 As shown, the resilient joint type base station antenna of the present invention comprises a radome 1 and a reflector 2 disposed in the radome 1, a resilient joint seat 3 is disposed on the reflector 2, an antenna joint 4 is fixed on the resilient joint seat 3, and an opening 5 corresponding to the resilient joint seat 3 for receiving or extending the antenna joint 4 is disposed on the radome 1. When installing or removing the antenna, the antenna joint 4 can be pressed, the resilient joint seat 3 shrinks, and the antenna joint 4 is received in the radome, and after the installation is completed, the resilient joint seat 3 rebounds, and the antenna joint 4 extends from the radome.

[0029] like Figure 2As shown, the resilient connector seat 3 includes a lower fixing seat 6 and an upper fixing seat 7. The lower fixing seat 6 is fixed on the reflector 2, and the antenna connector is connected to the upper fixing seat 7. The upper fixing seat 7 cooperates with the lower fixing seat 6, for example Figure 4 As shown in FIG. 7 , the upper part of the lower fixing seat 6 is provided with a guide column 13 that cooperates with the upper fixing seat 7, and the lower part of the upper fixing seat 7 is provided with a positioning sleeve column 14 that cooperates with the guide column 13. The guide column 13 and the positioning sleeve column 14 cooperate with each other to play a guiding and positioning role in the process of the upper fixing seat 7 and the lower fixing seat 6 approaching or moving away from each other. The guiding and positioning role can also be adopted in other forms, for example, the lower fixing seat 6 as a whole has a hollow columnar structure, and the upper fixing seat 7 has a sleeve that cooperates with the columnar structure.

[0030] When the antenna connector 4 is pressed, the upper fixing seat 7 moves toward the lower fixing seat 6, and the antenna connector 4 can be retracted into the antenna cover 1. In order to maintain this position, a locking mechanism can be provided between the upper fixing seat 7 and the lower fixing seat 6 or between the upper fixing seat 7 and the reflector 2 to lock the upper fixing seat. The locking mechanism can be provided as follows: Figure 3 The rebound fastener 9 shown and a Figure 5 As shown, a limit clamping column 8 is arranged at the lower part of the upper fixing seat 7. The rebound fastener 9 can be fixed on the reflector 2 or on the lower fixing seat 6. It adopts a conventional spring pressing buckle to cooperate with the limit clamping column 8. When the antenna connector 4 is pressed to shrink, the limit clamping column 8 is pressed downward to the rebound fastener 9, and the locking clip 21 on the upper part of the rebound fastener 9 is compressed and retracted to close to the middle to clamp the limit clamping column 8, and the rebound fastener 9 is locked inside. When the antenna connector 4 is pressed, the rebound fastener 9 is compressed, and its internal locking structure is loosened, and the locking clip 21 opens to disengage the limit clamping column 8. The locking mechanism can also adopt other forms, for example, a clamping block is arranged on the upper fixing seat 7, and an elastic clamping hook is arranged on the lower fixing seat 6. The clamping hook can cooperate with the clamping block to lock the upper fixing seat 7, and the upper fixing seat 7 can be released by pressing the clamping hook to disengage it from the clamping block. For another example, the locking mechanism may be in the form of a rotation lock, where the upper fixing seat 7 is pressed into place and then rotated and locked by a hook on the lower fixing seat 6, and can be released by turning back.

[0031] like Figure 2 As shown, a spring-shaped elastic element is provided between the upper fixing seat 7 and the lower fixing seat 6, and the spring 16 is sleeved on the guide column 13. When the locking mechanism is released, the spring 16 resets and pushes the upper fixing seat 7 upward to make the antenna connector 4 extend out of the antenna cover 1. The elastic element can also be provided between the upper fixing seat 7 and the reflector 2. For example, the elastic element adopts a large spring, which is provided on the limit clamping column under the upper fixing seat, and the lower end of the spring directly abuts against the reflector 2. It can be foreseen that the elastic element can also adopt other forms, such as spring pieces, etc., as long as it can meet the requirements of pushing up and resetting the upper fixing seat 7 and the antenna connector 4.

[0032] like Figure 6 As shown in FIG. 8 , a lower buckle 11 is provided at the lower part of the lower fixing seat 6, and a snap-in hole 12 for matching with the lower buckle is provided on the reflector plate 2. An upper buckle 15 is provided at the end of the guide column 13 for passing through the positioning sleeve column 14 and snapping into the end thereof. The structure of the lower buckle 11 and the upper buckle 15 may include two back-to-back and spaced-apart hooks as shown in the figure. The two hooks are made of elastic material. When the buckle is inserted into the fixing hole, the inclined surface of the hook causes the buckle to be squeezed and bent toward the middle and enter the fixing hole. After passing through the fixing hole, it is reset and the hook is fastened to the edge of the fixing hole.

[0033] like Figure 4 As shown in FIG. 5 , the upper fixing seat 7 is provided with a cable fixing body 17 for fixing the cable, and the side of the cable fixing body is provided with a side wire hole 18, and the upper part is provided with a top wire hole 19 connected to the top surface of the upper fixing seat. A wire clamp 20 is provided in the cable fixing body 17, and the routing direction of the connector cable can be selected according to actual needs, and the connector cable can be fixed to the wire card to protect the connector cable from damage during installation. Most of the components of the resilient connector seat 3 can be molded by plastic injection molding, which has good mechanical and insulation properties, ensuring the stability of the overall PIM performance of the antenna.

[0034] In the present invention, the rebound fastener 9 and the reflector 2, the lower fixing seat 6 and the reflector, and the upper fixing seat 7 and the lower fixing seat 6 can all be fastened and installed by snap-fitting, and no tooling is required during installation. The antenna assembly process is as follows:

[0035] 1. Align the rebound fastener 9 with the rebound fastener mounting hole 10 on the reflective plate 2, press the rebound fastener so that its hook 22 fastens the reflective plate, and fasten the rebound fastener to the reflective plate;

[0036] 2. Align the lower buckle 11 of the lower fixing seat 6 with the lower fixing seat installation hole 12 on the reflector, press the lower fixing seat 6 so that the lower buckle 11 fastens the reflector, and fasten the lower fixing seat to the reflector;

[0037] 3. Put the spring 16 onto the guide column 13 of the lower fixed seat;

[0038] 4. Align the positioning sleeve column 14 of the upper fixing seat 7 with the guide column 13 of the lower fixing seat, press the upper fixing seat 7 to allow the upper buckle 15 above the guide column 13 of the lower fixing seat 6 to fasten the upper fixing seat;

[0039] 5. Align the antenna connector 4 with the connector mounting hole 23 of the upper fixing seat 7, and use stainless steel screws to fasten the antenna connector to the upper fixing seat 7. According to the requirements of the connector cable routing, select a suitable direction to fix the connector cable to the line card 20 of the upper fixing seat 7, and then weld the cable to the antenna device. The antenna connector is installed;

[0040] 6. Press the antenna crimping joint to move the upper fixing seat 7 downward, so that the limit clamping column 8 of the upper fixing seat is inserted into the locking clip 21 of the rebound fastener 9, and the upper fixing seat is clamped and fixed;

[0041] 7. Put the antenna cover 1 in, align the joint opening 5 on the antenna cover with the position of the antenna joint 4, press the antenna joint to disengage the limit clamp 8 of the upper fixing seat 7 from the locking clip 21 of the rebound fastener 9, make the upper fixing seat rebound to restore its original position, and the joint extends out of the antenna cover 1, and the installation is completed.

[0042] The antenna connector of the antenna structure adopts a snap-on and spring-back device installation method, which does not require tooling assistance during installation, is firm and reliable, and is easy to install and disassemble, thereby improving assembly efficiency.

[0043] The above description of the specific implementation mode is only used to help understand the technical concept and core idea of ​​the present invention. Although the technical solution is described and illustrated using a specific preferred embodiment, it should not be understood as a limitation of the present invention itself. Those skilled in the art may make various changes in form and details without departing from the technical concept of the present invention. These easily conceived changes or substitutions should all be included in the protection scope of the present invention.

Claims

1. A resilient joint type base station antenna, comprising a radome (1) and a reflector (2) arranged in the radome (1), characterized in that: A resilient joint seat (3) is provided on the reflector (2), the antenna joint (4) is fixed on the resilient joint seat (3), and an opening (5) corresponding to the resilient joint seat (3) and used for receiving or extending the antenna joint (4) is provided on the antenna cover (1); the resilient joint seat (3) comprises a lower fixing seat (6) used for fixing on the reflector (2) and an upper fixing seat (7) used for connecting the antenna joint, the upper fixing seat (7) and the lower fixing seat (6) being matched, a locking mechanism for locking the upper fixing seat when the antenna joint (4) is received into the antenna cover (1) along with the upper fixing seat (7) is provided between the upper fixing seat (7) and the lower fixing seat (6) or between the upper fixing seat (7) and the reflector (2), and an elastic element for pushing the upper fixing seat (7) to allow the antenna joint (4) to extend out of the antenna cover (1) when the locking mechanism is released is provided between the upper fixing seat (7) and the lower fixing seat (6) or the reflector (2); The upper fixing seat (7) is provided with a cable fixing body (17) for fixing cables on one side facing the lower fixing seat, and the side surface of the cable fixing body is provided with at least two side wire holes (18), and the upper part is provided with a top wire hole (19) connected to the top surface of the upper fixing seat; The cable fixing body (17) is provided with a cable clip (20); The upper portion of the lower fixing seat (6) is provided with a guide column (13) that cooperates with the upper fixing seat (7), and the lower portion of the upper fixing seat (7) is provided with a positioning sleeve column (14) that cooperates with the guide column (13); An upper buckle (15) is provided at the end of the guide column (13) for passing through the positioning sleeve column (14) and being clamped at the end thereof.

2. The resilient joint base station antenna according to claim 1, characterized in that: The locking mechanism comprises a limit clamping column (8) arranged at the bottom of the upper fixing seat (7) and a rebound fastener (9) arranged on the reflection plate (2) or the lower fixing seat (6) and used for locking the limit clamping column.

3. The resilient joint type base station antenna according to claim 2, characterized in that: The reflector plate (2) is provided with a rebound fastener mounting hole (10), and the rebound fastener mounting hole (10) is engaged with a hook (22) on the side of the rebound fastener (9).

4. The resilient joint type base station antenna according to claim 1, characterized in that: A lower buckle (11) is provided at the lower portion of the lower fixing seat (6), and a lower fixing seat mounting hole (12) cooperating with the lower buckle is provided on the reflective plate (2).

5. The resilient joint type base station antenna according to claim 1, characterized in that: The elastic element is a spring (16) sleeved on the guide column (13).

6. The resilient joint type base station antenna according to claim 1, characterized in that: The elastic element is a spring or a spring sheet arranged between the upper fixing seat and the lower fixing seat or the reflecting plate.

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