CN212259354U

CN212259354U - Wireless communication base station

Info

Publication number: CN212259354U
Application number: CN202020418630.1U
Authority: CN
Inventors: 童恩东; 王细冬; 张明俊
Original assignee: Shenzhen Tatfook Technology Co Ltd
Current assignee: Shenzhen Tatfook Technology Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-29
Anticipated expiration: 2030-03-27

Abstract

The utility model relates to a wireless communication base station, including dustcoat, antenna array, wave filter, PCB board and radiator, antenna array, wave filter and PCB board set up in the cavity between dustcoat and the radiator, the reflecting plate of antenna array is followed certain radian and is gradually changed in succession in the width by the rectangular flat board that lies in different planes respectively more than at least two, the feed board of antenna array the shape with the shape looks adaptation of reflecting plate. Compared with the prior art, the utility model discloses wireless communication basic station's antenna array sets up on a plurality of planes, and the radiation face is wide, and the transmission of each direction is more even with received signal strength, has avoided the phenomenon that direction signal is weak a bit of direction signal is strong a bit of.

Description

Wireless communication base station

Technical Field

The utility model relates to a communication technology field, in particular to wireless communication basic station.

Background

The wireless communication base station refers to a radio transceiver station for information transmission between a wireless terminal and a wireless communication switching center in a certain radio coverage area. The receiving mode of the base station is that an antenna receives signals, the signals are transmitted to a PCB through a filter, and specifically, the signals are transmitted to a core network through a low-noise discharge circuit, a digital intermediate frequency module and an optical module in sequence and then through optical fibers. The transmission mode of the base station is that data of a core network is transmitted to a PCB board through optical fibers, and specifically, the data is transmitted to an antenna end through an optical module, a digital intermediate frequency module and a power amplifier circuit in sequence and then is transmitted to the antenna end through a filter for transmission.

The signal receiving and transmitting of the wireless communication base station need to be multidirectional, however, the antenna array of the existing wireless communication base station is basically arranged on the same plane, which is not beneficial to the multidirectional receiving and transmitting of the signal, and the signal strength in different directions has differences.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, avoid prior art's weak point and propose a wireless communication basic station that each position is received and transmitted signal intensity is even.

The utility model provides a technical scheme that its technical problem adopted does:

the utility model provides a wireless communication base station, includes dustcoat, antenna array, wave filter, PCB board and radiator, antenna array, wave filter and PCB board set up in the cavity between dustcoat and radiator, the reflecting plate of antenna array is followed certain radian continuous gradual change and is formed by the rectangular flat board that is located different planes respectively more than at least two on the width, the shape of the feed board of antenna array with the shape of reflecting plate is adapted.

Further:

connecting lines between the planes are positioned on the same cambered surface; the outer cover is a cambered surface, and the radian of the outer cover is the same as that of the cambered surface where connecting lines between the planes of the reflecting plates of the antenna array are located.

The width of each long flat plate is the same.

And convex strips extend from the connecting lines of the adjacent planes on one surface of the feed board close to the outer cover, and the convex strips divide the feed board into a plurality of areas.

The connecting lines of two adjacent planes of the reflecting plate close to the outer cover are provided with convex edges which are embedded with the grooves of the feeding plate far away from the outer cover.

The filter is arranged on one surface of the reflecting plate far away from the outer cover.

The filter includes a filter body and a filter cover that covers the filter body on the reflection plate.

The filter comprises a filter cover and is characterized in that a first elastic salient point is arranged on the inner side of the vertical wall of the filter cover, and the first elastic salient point is compressed when the filter body is embedded into the filter cover.

The filter comprises a filter cover and is characterized in that a second elastic salient point is arranged on the inner side of the vertical wall of the filter cover, a concave pit matched with the second elastic salient point is formed in the bottom of the filter body, and the second elastic salient point is embedded into the concave pit when the filter body is embedded into the filter cover.

And the periphery of the filter cover is provided with a flange which is fixed with the transmitting plate.

Each filter is connected with the PCB board through a pin connector, one end of each pin connector, which is connected with the filter, is a spherical end, and the filter is provided with a spherical concave pit matched with the spherical end. And one end of the pin connector, which is connected with the PCB, is of an elastic thimble structure.

The radiator comprises a heat dissipation plate, heat dissipation teeth and arc supporting plates, the heat dissipation teeth extend outwards from the heat dissipation plate vertically, and the arc supporting plates extend inwards from two ends of the heat dissipation plate vertically.

The arc-shaped supporting plate at one end of the radiator is provided with a junction box, and the junction box and the box body can be integrally formed with the arc-shaped supporting plate.

The reflecting plate of the antenna array is formed by eight long flat plates which are respectively positioned on different planes in a continuously gradual change mode along a certain radian on the width.

The reflector plate of the antenna array is integrally formed.

The antenna array, the filter and the PCB are arranged in a cavity between the outer cover and the radiator, the outer cover and a reflecting plate of the antenna array are arc-shaped, and the shape of a feed board of the antenna array is matched with that of the reflecting plate.

Compared with the prior art, the utility model discloses wireless communication base station's antenna array sets up on a plurality of planes, and the radiation face is wide, is favorable to diversified receipt and the transmission of signal. The strength of the transmitting and receiving signals in all directions is uniform, and the phenomenon that some direction signals are strong and some direction signals are weak is avoided.

And, the utility model discloses compact structure has, small, convenient assembling and with low costs technical effect.

Drawings

Fig. 1 is a schematic axial view of an embodiment of a wireless communication base station according to the present invention;

fig. 2 is a schematic axial view of an embodiment of a wireless communication base station according to the present invention with the outer cover removed;

fig. 3 is an exploded view of an embodiment of a wireless communication base station according to the present invention;

fig. 4 is a schematic structural diagram of a filter of an embodiment of the wireless communication base station according to the present invention, which is mounted on a reflection plate;

fig. 5 is a schematic cross-sectional view of an embodiment of the wireless communication base station of the present invention;

fig. 6 is a schematic diagram of the filter axis measurement of the embodiment of the wireless communication base station of the present invention;

fig. 7 is an exploded view of a filter according to an embodiment of the present invention;

fig. 8 is a second exploded view of the filter of the wireless communication base station of the present invention;

fig. 9 is a schematic cross-sectional view of a filter according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a heat sink structure of an embodiment of the wireless communication base station of the present invention.

Detailed Description

As shown in fig. 1 to 5, a wireless communication base station 100, which has a shape of a greenhouse as a whole, includes a housing 10, an antenna array 20, a filter 30, a PCB 40, a heat sink 50, and a pin connector 70. The outer cover 10 is a cambered surface and is arranged on the radiator 50. The antenna array 20, filter 30, pin connectors 70 and PCB board 40 are disposed in a cavity between the housing 10 and heat sink 50. An antenna array 20 is arranged next to the inside of the housing 10, the antenna array 20 includes a reflection plate 21, a feeding plate 22, a support 23 and a radiation sheet 24, and the feeding plate 22 is attached to the reflection plate 21. A plurality of supporting seats 23 are arranged on the feed board 22 or are integrally formed with the feed board 22, the supporting seats 23 are perpendicular to the feed board 22, the radiation sheets 24 are arranged on the supporting seats 23 and are perpendicular to the supporting seats 23, and the radiation sheets 24 are parallel to the feed board and the reflecting board. In some embodiments, the radiation plate 24 is engaged with the support base 23. The antenna array 20 is weldless, simple to assemble, has improved production efficiency, higher product consistency, and low material cost and production cost.

The reflecting plate 21 and the feeding plate 22 of the antenna array 20 are formed by continuously gradually changing the width of three or more than three long flat plates which are respectively positioned on different planes along a certain radian, connecting lines between the planes of the reflecting plate 21 are positioned on the same cambered surface, and connecting lines between the planes of the feeding plate 22 are also positioned on the same cambered surface. The reflection plate 21 is integrally formed. The radian of the arc surface of the outer cover 10 is the same as the radian of the arc surface where the connecting lines between the planes of the reflecting plates of the antenna array are located, and the radian of the arc surface where the connecting lines between the planes of the feed plates are located. In some embodiments, each elongate flat plate is uniform in width; in this embodiment, the feeding board 22 and the reflecting board 21 are formed by eight long flat boards respectively located on different planes, and the widths of the eight long flat boards are continuously and gradually changed along the curvature of the outer cover.

In some embodiments, the feeding board 22 is formed by continuously tapering a plurality of strip plates respectively located on different planes, and a convex strip 221 is provided on a surface close to the housing 10, the convex strip 221 partitions the feeding board into a plurality of regions, and a surface of each region is plated with a metal or a plated metal and is provided with a supporting seat 23. In some embodiments, the protruding strip 221 is disposed on the connecting line of two adjacent planes, and the protruding strip 221 may be integrally formed with the feeding board. The supporting seat 23 and the feeding board 22 can be integrally formed by plastic injection molding process, and the plastic can be made of low-cost modified plastic material.

The reflecting plate 21 is an aluminum plate and is formed by a plurality of planes continuously, and the connecting lines of two adjacent planes close to one surface of the outer cover 10 are provided with convex ribs 211 which are matched with the grooves of the surface of the feed plate 22 far from the outer cover 10. The other surface of the reflection plate 21, i.e., the surface far from the housing 10, is fixedly connected with a filter 30.

The filter 30 is a dielectric filter such as a ceramic dielectric filter, and as shown in fig. 5, a plurality of filters 30 are fixed to the reflection plate 21.

As shown in fig. 6 to 9, the filter 30 includes a filter body 31 and a filter cover 32, and in the present embodiment, the filter 30 is a square body. The filter body 31 is housed in a filter cover 32, and the filter cover 32 covers the filter body 31 on the reflection plate 21. The inner side of the vertical wall of the filter cover 32 is provided with a first elastic bump 321, and when the filter body 31 is embedded into the filter cover 32, the first elastic bump 321 is compressed to ensure that the filter body 31 is tightly fixed in the filter cover 32. The first elastic salient point can be a convex cambered surface or a hemispherical shape. The inner side of the bottom plate of the filter cover 32 is provided with a second elastic bump 324, the bottom of the filter body is provided with a concave pit 311 matched with the second elastic bump 324, and when the filter body 31 is embedded into the filter cover 32, the second elastic bump 324 is tightly matched with the concave pit 311. The first elastic bump may be a convex arc surface or a hemispherical surface, and the concave pit 311 is a concave arc surface or a concave spherical surface, respectively. The filter housing 32 is provided with a flange 322 on the periphery, by means of which the filter 30 is fixed, for example welded or screwed, to the radiation plate 21.

As shown in fig. 5, the pin connector 70 is used to conduct signals of the filter 30 to the PCB 40, and one end 71 of the pin connector 70 is connected to the filter 30 and the other end 72 is connected to the PCB 40. The pin connectors 70 connected to the PCB 40 are parallel to each other, and the filters 30 are disposed on the reflecting plate 21 having a plurality of planes and similar to a curved surface, so that the pin connectors 70 and the filters 30 are connected at different angles. In order to ensure good contact between the pin connector 70 and each filter 30, as shown in fig. 8 and 9, the filter cover 32 is provided with a through hole 323 at the bottom thereof and a spherical recess 312 at a corresponding position of the filter body 31. Meanwhile, one end 71 of the pin connector 70 is designed to be spherical. As shown in fig. 5, the ball-shaped end 71 of the pin connector 70 is inserted into the spherical recess 312 of the filter body 31 beyond the through hole 323 to ensure excellent contact of the pin connector 70 with the filter 30. The other end 72 of the one end 71 of the pin connector 70 is an elastic pin structure, and the pin connector 70 is tightly connected with the PCB 40 by means of elasticity.

As shown in fig. 5, in the arch-shaped space between the filter 30 and the heat sink 50, the PCB board 40 is disposed. The PCB 40 includes a power amplifier circuit, a digital intermediate frequency circuit, an optical module, a power module, and the like. In this embodiment, the PCB 40 is provided with two pieces. The high power device is disposed on the PCB board close to the heat sink 50 as much as possible, and disposed on the side of the PCB board and the heat sink 50 as much as possible. The principle of the layout of the electronic components and chips on the PCB 40 is: on the premise that the thickness of the heat dissipation plate is as small as possible, the high-power device with large heat dissipation requirement can be attached to the heat dissipation plate. According to this principle, when the components and chips are arranged on the PCB 5, the high-power devices and electronic components having substantially the same thickness are arranged on the surface to be bonded to the heat dissipation plate. Generally, a chip and a component having a small thickness are arranged on one surface of a PCB to be bonded to a heat sink, and a component having a large thickness is arranged on the other surface of the PCB. Otherwise, if the chip and the component with large thickness difference are arranged on the surface attached with the heat dissipation plate, in order to ensure that each chip and component are attached with the heat dissipation plate for conduction and heat dissipation, the thickness of the heat dissipation plate needs to be locally increased, which can result in the increase of the volume and the weight of the whole base station.

As shown in fig. 5, a step 41 is provided on the edge of the PCB 40 close to the heat sink 50, and the edge of the integrated arc-like element of the filter 30 and the antenna array 20 overlaps the step 41.

As shown in fig. 10, the heat sink 50 includes a heat radiating plate 51, heat radiating teeth 52, and arc-shaped support plates 53 extending perpendicularly and inwardly from both ends of the heat radiating plate 51. The arc-shaped support plate 53 is used for supporting the arc-shaped surface-like component integrated with the filter 30 and the antenna array 20. Meanwhile, the arc support plate 53 has a function of preventing the heat radiating plate from being deformed. Air holes 531 are formed in the arc-shaped supporting plate 53. The heat radiating teeth 52 extend perpendicularly outward from the heat radiating plate 51. The heat that electronic components and chip on the cloth laid PCB board gived off all distributes away through installing the heating panel and the heat dissipation tooth at the basic station back, and it compares with the preceding, back, lower extreme and the side of whole basic station all is provided with the heat dissipation tooth among the prior art, and not only the radiating effect is good, has reduced volume and weight moreover.

As shown in fig. 10, a junction box 60 is disposed on the arc-shaped support plate 53 at one end of the heat sink 50, and the junction box 60 and the box body may be integrally formed with the arc-shaped support plate 53.

In other embodiments, the housing and the reflector plate of the antenna array are both arc-shaped, and the shape of the feed plate of the antenna array is matched with the shape of the reflector plate.

It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and that such modifications and substitutions are intended to be included within the scope of the appended claims.

Claims

1. A wireless communication base station comprises an outer cover, an antenna array, a filter, a PCB and a radiator, wherein the antenna array, the filter and the PCB are arranged in a cavity between the outer cover and the radiator, and the wireless communication base station is characterized in that: the reflecting plate of the antenna array is formed by continuously and gradually changing the width of at least two strip flat plates which are respectively positioned on different planes along a certain radian, and the shape of the feed board of the antenna array is matched with that of the reflecting plate.

2. The wireless communication base station of claim 1, wherein: connecting lines between the planes are positioned on the same cambered surface; the outer cover is a cambered surface, and the radian of the outer cover is the same as that of the cambered surface where connecting lines between the planes of the reflecting plates of the antenna array are located.

3. The wireless communication base station of claim 1, wherein: the width of each long flat plate is the same.

4. The wireless communication base station of claim 1, wherein: and convex strips are arranged on one surface of the feed board close to the outer cover from the connecting lines of the adjacent planes, and the convex strips divide the feed board into a plurality of areas.

5. The wireless communication base station of claim 3, wherein: the connecting lines of two adjacent planes of the reflecting plate close to the outer cover are provided with convex edges which are embedded with the grooves of the feeding plate far away from the outer cover.

6. The wireless communication base station of claim 1, wherein: the filter is arranged on one surface of the reflecting plate far away from the outer cover.

7. The wireless communication base station of claim 6, wherein: the filter includes a filter body and a filter cover that covers the filter body on the reflection plate.

8. The wireless communication base station of claim 7, wherein: the filter comprises a filter cover and is characterized in that a first elastic salient point is arranged on the inner side of the vertical wall of the filter cover, and the first elastic salient point is compressed when the filter body is embedded into the filter cover.

9. The wireless communication base station of claim 8, wherein: the filter comprises a filter cover and is characterized in that a second elastic salient point is arranged on the inner side of the vertical wall of the filter cover, a concave pit matched with the second elastic salient point is formed in the bottom of the filter body, and the second elastic salient point is embedded into the concave pit when the filter body is embedded into the filter cover.

10. The wireless communication base station of claim 7, wherein: and the periphery of the filter cover is provided with a flange which is fixed with the transmitting plate.

11. The wireless communication base station of claim 1, wherein: each filter is connected with the PCB by a pin connector, one end of each pin connector, which is connected with the filter, is a spherical end, a spherical concave pit matched with the spherical end is arranged on the filter, and one end of each pin connector, which is connected with the PCB, is an elastic thimble structure.

12. The wireless communication base station of claim 1, wherein: the radiator comprises a heat dissipation plate, heat dissipation teeth and arc supporting plates, the heat dissipation teeth extend outwards from the heat dissipation plate vertically, and the arc supporting plates extend inwards from two ends of the heat dissipation plate vertically.

13. The wireless communication base station of claim 12, wherein: the arc-shaped supporting plate at one end of the radiator is provided with a junction box, and the junction box and the box body can be integrally formed with the arc-shaped supporting plate.

14. The wireless communication base station of claim 1, wherein: the reflecting plate of the antenna array is formed by eight long flat plates which are respectively positioned on different planes in a continuously gradual change mode along a certain radian on the width.

15. The wireless communication base station according to any of claims 1 to 14, characterized by: the reflector plate of the antenna array is integrally formed.

16. A wireless communication base station comprises an outer cover, an antenna array, a filter, a PCB and a radiator, wherein the antenna array, the filter and the PCB are arranged in a cavity between the outer cover and the radiator, and the wireless communication base station is characterized in that: the outer cover and the reflecting plate of the antenna array are arc-shaped, and the shape of the feed board of the antenna array is matched with that of the reflecting plate.