Combiner with lightning protection function

Abstract

The utility model relates to a combiner with a lightning protection function, which comprises a cavity, the upper side and the lower side of the cavity are respectively connected with an upper cover and a lower cover, the front side and the rear side of the cavity are in threaded connection with three connectors, the left side and the right side of the cavity are provided with a plurality of tuning screw rods, each tuning screw rod is in threaded connection with a tuning rod fixing nut, and the tuning rod fixing nuts are in threaded connection with the tuning rod fixing nuts. The cavity is internally provided with a resonance rod and a transmission sheet, the resonance rod is provided with a coupling sheet and a tapping sheet, the cavity is also internally provided with a circuit board installation cavity, and the circuit board installation cavity is internally provided with a first lightning protection PCB and a second lightning protection PCB. The two lightning protection PCBs are arranged in the combiner, the two-stage lightning protection design can be suitable for atrocious weather environments, and when a base station and an antenna in a thunder and lightning area are impacted by thunder and lightning, the use of the product is still not affected.

Description

Technical Field

[0001] The utility model relates to the field of combiners, in particular to a combiner with a lightning protection function. Background Art

[0002] The development of mobile communications is very mature at present. The network covers an increasingly wide area. Wherever people can reach, there must be mobile network coverage. The current mobile communications is an intelligent era of interconnected everything. The infrastructure construction of mobile communication networks is still progressing rapidly. Wherever there is mobile signal coverage, the distance between each other can be shortened to the screen. Mobile communication signal coverage requires densely distributed communication equipment. At the same time, aircraft, satellites, radars, telemedicine, etc. all need to be equipped with transmitting and receiving equipment. The signal of communication equipment products must be stable to better serve mankind.

[0003] The market demands from all walks of life are increasing, the signal frequency bands are complex, and the mutual interference is increasing. The base station combiner can play the role of a frequency-selective combiner in mobile communications, filter invalid communication signals, select and transmit signals in useful frequency bands, and improve the signal interference between various operations. The combiner is connected to the back stage of the antenna in the base station. The signal received by the antenna is transmitted to the base station receiver through the combiner frequency selection filter. The signal of the transmitter can also be combined through the combiner filter, transmitted to the antenna, and emitted by the antenna. However, combiners often work in some special environments, such as base stations in areas with frequent lightning and areas that are easily struck by lightning. Ordinary conventional combiners often cannot be used normally due to lightning. Utility Model Content

[0004] The utility model aims to provide a combiner with a lightning protection function, so as to effectively improve the lightning protection capability of the combiner.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a combiner with a lightning protection function, including a cavity, wherein the upper and lower sides of the cavity are respectively connected to an upper cover and a lower cover, the front and rear sides of the cavity are threadedly connected with three connectors, and the left and right sides of the cavity are installed with a plurality of tuning screws, each tuning screw is threadedly connected with a tuning rod fixing nut, a resonance rod and a transmission plate are installed in the cavity, a coupling plate and a tap plate are installed on the resonance rod, a circuit board installation cavity is also opened in the cavity, and a first lightning protection PCB board and a second lightning protection PCB board are installed in the circuit board installation cavity.

[0006] Furthermore, the first lightning protection PCB board and the second lightning protection PCB board are both fixed in the circuit board installation cavity by PCB board screws.

[0007] Furthermore, the area of ​​the first lightning protection PCB board is larger than that of the second lightning protection PCB board.

[0008] Furthermore, the three connectors are a NEX 10 connector, an SMA connector and an ANT connector, the SMA connector is fixed to the 433MHz port with screws, the NEX10 connector is fixed to the 850MHz port of the cavity with screws, and the ANT connector is fixed to the ANT port of the cavity.

[0009] Furthermore, the upper cover is fixedly connected to the top of the cavity by a plurality of upper cover fixing screws.

[0010] Furthermore, the lower cover is fixedly connected to the bottom of the cavity by a plurality of lower cover fixing screws.

[0011] Furthermore, the coupling plate is fixedly mounted on the resonant rod by means of coupling plate fixing screws and insulating washers.

[0012] Furthermore, the transmission piece is fixed in the cavity by means of a transmission piece support and a transmission piece fixing screw.

[0013] Furthermore, the transmission sheet is also fixedly connected to the resonance rod, and a high temperature resistant insulation film is provided between the transmission sheet and the resonance rod.

[0014] The utility model provides a combiner with lightning protection function, which has the advantages of:

[0015] The beneficial effect described in the present application relative to the existing technology is that the resonance rod is installed horizontally, which makes the product size smaller and the cavity height can be reduced, which is conducive to base station installation, saves internal space of the antenna, and reduces costs.

[0016] The present application provides two lightning protection PCB boards in the combiner. The two-level lightning protection design can be used in harsh climate environments. When base stations and antennas in areas with frequent lightning are struck by lightning, the use of the product is still not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the combiner of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall structure of the combiner of the utility model from another angle.

[0020] Figure 3 It is a structural schematic diagram of the combiner of the utility model without the upper cover.

[0021] Figure 4It is an exploded view of the combiner described in the utility model.

[0022] In the figure: 1. Lower cover fixing screws; 2. Lower cover; 3. SMA connector; 4. NEX10 connector; 5. Cavity; 6. Connector fixing screws; 7. Tuning screw; 8. Tuning rod fixing nut; 9. First coupling plate; 10. First high temperature resistant insulating film; 11. First lightning protection PCB board; 12. Tap plate; 13. Second lightning protection PCB board; 14. Insulating gasket; 15. Second coupling plate; 16. Coupling plate fixing screws; 17. Second high temperature resistant insulating film; 18. Transmission plate support; 19. Transmission plate fixing screws; 20. ANT connector; 21. Transmission plate; 22. Upper cover; 23. Upper cover fixing screws; 24. Resonance rod. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Combination Figure 1-4 The present application provides a combiner with a lightning protection function, including a cavity 5, wherein the upper and lower sides of the cavity 5 are respectively connected with an upper cover 22 and a lower cover 2, wherein the upper cover 22 is fixedly connected to the cavity 5 by a plurality of upper cover fixing screws 23, and the lower cover 2 is fixedly connected to the cavity 5 by a plurality of lower cover fixing screws 1, so that the three form a whole.

[0025] The front and rear sides of the cavity 5 are threadedly connected with three connectors. Specifically, the three connectors are a NEX10 connector 4 and an SMA connector 3 arranged on the front surface of the cavity 5, and an ANT connector 20 arranged on the rear surface of the cavity 5. The SMA connector 3 is fixed to the 433MHz port with a connector fixing screw 6, the NEX10 connector 4 is fixed to the 850MHz port of the cavity 5 with a connector fixing screw 6, and the ANT connector 20 is fixed to the ANT port of the cavity 5 by the connector fixing screw 6.

[0026] Meanwhile, a plurality of tuning screws 7 are installed on the left and right sides of the cavity 5 , and a tuning rod fixing nut 8 is threadedly connected to each tuning screw 7 .

[0027] A resonance rod 24 is installed in the cavity 5. The resonance rod 24 is fixed in the cavity 5 by a screw made of polyetheretherketone. The resonance rod 24 is arranged parallel to the upper cover and the lower cover 2, so that the resonance rod 24 is installed in the cavity 5 in a transverse manner, thereby effectively reducing the volume of the cavity 5.

[0028] The resonant rod 24 is provided with a coupling plate and a tap plate 12. Specifically, the coupling plate includes a first coupling plate 9 and a second coupling plate 15, both of which are fixedly mounted on the resonant rod 24 by coupling plate fixing screws 16 and insulating gaskets 14. The tap plate 12 includes one, which is fixedly mounted on the resonant rod 24 by a tap plate screw.

[0029] At the same time, a transmission sheet 21 is also installed in the cavity 5, a part of the transmission sheet 21 is fixedly installed on the cavity 5, and the other part is fixedly installed on the resonance rod 24, wherein the part of the transmission sheet 21 fixed on the cavity is fixed in the cavity 5 by a transmission sheet support 18 and a transmission sheet fixing screw 19. Specifically, the transmission sheet support 18 is integrally arranged in the cavity 5, and a threaded hole is opened on the transmission sheet support 18. After the transmission sheet 21 is placed on the transmission sheet support 18, the transmission sheet 21 is fixed to the transmission sheet support 18 by the transmission sheet fixing screw 19. At the same time, the other part of the transmission sheet 21 is fixedly arranged on the resonance rod 24, and the transmission sheet 21 is also fixed to the resonance rod 24 by the transmission sheet fixing screw 19, and a first high temperature resistant insulating film 10 and a second high temperature resistant insulating film 17 are also arranged between the transmission sheet 21 and the resonance rod 24.

[0030] Meanwhile, two circuit board installation cavities are provided in the cavity 5 , and a first lightning protection PCB board 11 and a second lightning protection PCB board 13 are installed in the two circuit board installation cavities respectively.

[0031] The first lightning protection PCB board 11 and the second lightning protection PCB board 13 are both fixed in the circuit board installation cavity by PCB board screws.

[0032] Furthermore, the area of ​​the first lightning protection PCB board 11 is larger than that of the second lightning protection PCB board 13 .

[0033] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A combiner with lightning protection function, characterized in that: It includes a cavity, wherein the upper and lower sides of the cavity are respectively connected with an upper cover and a lower cover, the front and rear sides of the cavity are threadedly connected with three connectors, the left and right sides of the cavity are installed with a plurality of tuning screws, each tuning screw is threadedly connected with a tuning rod fixing nut, a resonance rod and a transmission plate are installed in the cavity, a coupling plate and a tap plate are installed on the resonance rod, a circuit board installation cavity is also opened in the cavity, and a first lightning protection PCB board and a second lightning protection PCB board are installed in the circuit board installation cavity.

2. The combiner with lightning protection function according to claim 1, characterized in that: The first lightning protection PCB board and the second lightning protection PCB board are both fixed in the circuit board installation cavity by PCB board screws.

3. The combiner with lightning protection function according to claim 1, characterized in that: The area of ​​the first lightning protection PCB board is larger than that of the second lightning protection PCB board.

4. The combiner with lightning protection function according to claim 1, characterized in that: The three connectors are a NEX 10 connector, an SMA connector and an ANT connector. The SMA connector is fixed to the 433MHz port with screws, the NEX10 connector is fixed to the 850MHz port of the cavity with screws, and the ANT connector is fixed to the ANT port of the cavity.

5. The combiner with lightning protection function according to claim 1, characterized in that: The upper cover is fixedly connected to the upper part of the cavity by a plurality of upper cover fixing screws.

6. The combiner with lightning protection function according to claim 1, characterized in that: The lower cover is fixedly connected to the bottom of the cavity by a plurality of lower cover fixing screws.

7. The combiner with lightning protection function according to claim 1, characterized in that: The coupling plate is fixedly mounted on the resonance rod through coupling plate fixing screws and insulating gaskets.

8. The combiner with lightning protection function according to claim 1, characterized in that: The transmission sheet is fixed in the cavity by a transmission sheet support and a transmission sheet fixing screw.

9. The combiner with lightning protection function according to claim 1, characterized in that: A high temperature resistant insulating film is arranged between the transmission plate and the resonance rod.

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