Indoor small cell

Abstract

The utility model discloses an indoor small base station, the indoor small base station includes: upper cover subassembly, PCBA subassembly and radiator, upper cover subassembly is connected with radiator, and the accommodation space is formed between upper cover subassembly and radiator, and PCBA subassembly is located in the accommodation space, and PCBA subassembly is fixedly connected with the side of radiator to upper cover subassembly, and the side of upper cover subassembly to PCBA subassembly is equipped with contact, and the side of PCBA subassembly to upper cover subassembly is equipped with the elastic sheet, and the elastic sheet is contacted with contact connection. Through this kind of three-piece whole machine architecture, guarantee the miniaturization and light weight of the indoor small base station. On the one hand, the volume of the indoor small base station can be effectively reduced, and the weight of the indoor small base station is reduced, on the other hand, the cost of the indoor small base station can be effectively controlled, and the economy of the indoor small base station is improved.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication technology, and in particular to an indoor small base station. Background Technology

[0002] Indoor base stations are small base station devices deployed in indoor environments to provide indoor wireless communication coverage. They are designed to address issues such as insufficient indoor signal coverage and capacity, and to provide high-quality voice calls and data transmission.

[0003] Indoor base stations are typically installed in indoor environments such as office buildings, shopping malls, subway stations, train stations, airports, and hospitals. They are usually ceiling-mounted or wall-mounted, with installation methods close to the user population, thus requiring miniaturization and lightweight design. However, with the development of multi-band, multi-antenna indoor base stations, while integration and performance have improved, the existing multi-component architecture of indoor base stations has gradually become a bottleneck for miniaturization and lightweighting, creating a certain degree of obstruction. Furthermore, due to EIRP regulations, indoor base stations have lower output power, and compared to macro base stations, their coverage radius is limited, resulting in a relatively large number of units deployed. Therefore, the demand for low cost is becoming increasingly strong. Existing indoor base stations, due to the large number of components and the stacking of installation methods, suffer from problems such as large size, heavy weight, and high cost. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] In view of this, the present invention provides an indoor small base station, which forms a three-piece overall structure through a top cover assembly, a PCBA assembly, and a heat sink, ensuring the miniaturization and lightweight of the indoor small base station. On the one hand, it can effectively reduce the size and weight of the indoor small base station; on the other hand, it can effectively control the cost of the indoor small base station and improve its economic efficiency.

[0006] Specifically, the following technical solutions are included:

[0007] This utility model provides an indoor small base station, which includes: a top cover assembly, a PCBA assembly, and a heat sink. The top cover assembly is connected to the heat sink, and an accommodating space is formed between the top cover assembly and the heat sink. The PCBA assembly is located within the accommodating space. The PCBA assembly is fixedly connected to the side of the heat sink facing the top cover assembly. A contact point is provided on the side of the top cover assembly facing the PCBA assembly, and a spring contact is provided on the side of the PCBA assembly facing the top cover assembly. The spring contact is in contact with the contact point.

[0008] Optionally, the contact includes a GND contact and an RF contact; the spring includes a GND spring and an RF spring, the GND spring being in contact with the GND contact and the RF spring being in contact with the RF contact.

[0009] Optionally, the upper cover assembly includes:

[0010] A cover body is disposed on the radiator, and the cover body and the radiator form the receiving space;

[0011] An antenna assembly is disposed on the side of the cover body facing the PCBA assembly, and the antenna assembly is located within the receiving space.

[0012] Optionally, the antenna assembly includes:

[0013] A fixing plate is fixedly connected to the cover body;

[0014] A connecting block is disposed at one end of the fixing plate, and the GND contact and the RF contact are provided on the side of the connecting block facing the PCBA assembly.

[0015] Optionally, the PCBA assembly includes:

[0016] PCB board, on which the GND spring and the RF spring are provided;

[0017] A sheet metal shielding cover is fixedly mounted on the PCB board.

[0018] Optionally, the sheet metal shielding cover includes:

[0019] The lower frame of the shielding cover is fixedly connected to the PCB board;

[0020] The shielding cover is fitted onto the lower frame of the shielding cover.

[0021] Optionally, the upper cover of the shielding cover is interference-fitted with the lower frame of the shielding cover.

[0022] Optionally, the top cover assembly is detachably connected to the radiator; the detachable connection is a snap-fit ​​connection, a hinged connection, a threaded connection, or a bolt connection.

[0023] Optionally, the indoor small base station further includes:

[0024] Indicator light: The upper cover assembly has a receiving groove, and the indicator light is disposed in the receiving groove.

[0025] Optionally, the GND contact and the RF contact are gold-plated contacts, and the GND spring and the RF spring are gold-plated springs.

[0026] The indoor small base station provided in this embodiment includes a top cover assembly, a PCBA assembly, and a heat sink arranged sequentially. The top cover assembly and the heat sink are combined to form a protective shell, creating an accommodating space. The PCBA assembly is located within this accommodating space. The top cover assembly has a contact point on the side facing the PCBA assembly, and the PCBA assembly has a spring contact on the side facing the top cover assembly. The communication effect of the indoor small base station is achieved through the contact point contact between the spring contact and the contact point. Simultaneously, the PCBA assembly is positioned within the accommodating space, with sufficient contact space for the spring contact and the contact point to press together. This reduces the height of the accommodating space, thereby reducing the overall thickness and weight of the indoor small base station, and consequently, lowering the production cost and improving its economic efficiency.

[0027] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is an internal schematic diagram of an indoor small base station according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of a top cover assembly according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of a PCBA assembly according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of an antenna assembly according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of a sheet metal shielding cover according to an embodiment of the present invention.

[0034] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0035] 100 Indoor small base station, 110 Top cover assembly, 111 Cover body, 112 Antenna assembly, 1121 Fixing plate, 1122 Connecting block, 1123 GND contact, 1124 RF contact, 120 PCBA assembly, 121 PCB board, 122 Sheet metal shielding cover, 1221 Shielding cover lower frame, 1222 Shielding cover upper cover, 123 GND spring, 124 RF spring, 130 Heat sink. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] Before providing a further detailed description of the embodiments of this utility model, the directional terms used in the embodiments of this utility model, such as "upper part", "lower part" and "side part", do not have the meaning of limiting the scope of protection of this utility model.

[0038] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0039] Figure 1 This is an internal schematic diagram of an indoor small base station according to an embodiment of the present invention.

[0040] like Figure 1 As shown, one embodiment of the present invention provides an indoor small base station 100, which includes: an upper cover assembly 110, a PCBA assembly 120, and a heat sink 130. The upper cover assembly 110 is connected to the heat sink 130, and an accommodating space is formed between the upper cover assembly 110 and the heat sink 130. The PCBA assembly 120 is located in the accommodating space. The PCBA assembly 120 is fixedly connected to the side of the heat sink 130 facing the upper cover assembly 110. A contact is provided on the side of the upper cover assembly 110 facing the PCBA assembly 120, and a spring is provided on the side of the PCBA assembly 120 facing the upper cover assembly 110. The spring is in contact with the contact.

[0041] The indoor small base station 100 includes a top cover assembly 110, a PCBA assembly 120, and a heat sink 130 arranged sequentially. The top cover assembly 110 and the heat sink 130 are combined to form a protective shell, creating an accommodating space. The PCBA assembly is located within this accommodating space. The top cover assembly 110 has a contact point on the side facing the PCBA assembly 120, and the PCBA assembly 120 has a spring contact on the side facing the top cover assembly 110. The communication effect of the indoor small base station 100 is achieved through contact between the spring contact and the contact point. Simultaneously, the PCBA assembly 120 is positioned within the accommodating space, with sufficient contact space for the spring contact and the contact point to press together. This reduces the height of the accommodating space, thereby reducing the overall thickness and weight of the indoor small base station 100, and consequently, lowering the production cost and improving the economic efficiency of the indoor small base station 100.

[0042] It should be noted that many components on the PCB board 121 generate heat during operation, thus requiring timely heat dissipation to extend their lifespan and consequently improve the lifespan of the indoor small base station 100. The heat sink 130 includes a substrate and multiple heat sinks vertically arranged on the substrate. These heat sinks are spaced apart and arranged parallel to each other. Alternatively, the substrate can be divided into multiple regions, each with multiple heat sinks arranged parallel to each other, while adjacent regions have heat sinks arranged vertically. The arrangement of multiple heat sinks effectively increases the heat dissipation area of ​​the heat sink 130, improving its heat dissipation efficiency. The top cover assembly 110 is connected to the substrate.

[0043] Understandably, the heat sink 130 is made of aluminum. The aluminum heat sink 130 is lighter, which reduces the weight of the indoor small base station 100. Aluminum has high thermal conductivity, which provides good heat dissipation and better protects the components. Aluminum is also cheaper, which further improves the economics of the indoor small base station 100 and makes it more widely applicable.

[0044] In one feasible implementation, the contacts include a GND contact 1123 and an RF contact 1124; the spring includes a GND spring and an RF spring, with the GND spring in contact with the GND contact 1123 and the RF spring in contact with the RF contact 1124.

[0045] Specifically, the indoor small base station 100 includes a top cover assembly 110 and a PCBA assembly 120 connected to the top cover assembly 110. The top cover assembly 110 has a GND contact 1123 and an RF contact 1124, and the PCBA assembly 120 has a GND spring 123 and an RF spring 124. The communication function of the indoor small base station 100 is realized by the direct connection between the contacts of the top cover assembly 110 and the springs of the PCBA assembly 120. At the same time, since the contacts of the top cover assembly 110 are directly connected to the springs of the PCBA assembly 120, the height of the indoor small base station 100 can be effectively reduced. On the one hand, the volume of the indoor small base station 100 can be effectively reduced, thereby reducing the weight of the indoor small base station 100. On the other hand, the cost of the indoor small base station 100 can be effectively controlled, improving the economic efficiency of the indoor small base station 100.

[0046] It should be noted that GND contact 1123 is a grounding contact, and RF contact 1124 is a radio frequency contact. The cooperation between the grounding contact and the radio frequency contact can improve the reliability and stability of radio frequency signal transmission and ensure the quality of signal transmission. There can be one or more GND contacts 1123. Setting only one GND contact 1123 can easily cause unstable radio frequency signal transmission. Setting a ring-shaped GND contact 1123 will increase the production cost of the indoor small base station 100. Therefore, this embodiment sets two GND contacts 1123, which are located on both sides of the RF contact 1124. On the one hand, it can ensure the quality of radio frequency signal transmission, and on the other hand, it can reduce the manufacturing cost of the indoor small base station 100 and improve the economy of the indoor small base station 100.

[0047] Figure 2 This is a schematic diagram of a top cover assembly according to an embodiment of the present invention.

[0048] In one feasible implementation, such as Figure 2 As shown, the upper cover assembly 110 includes:

[0049] The cover body 111 is disposed on the radiator 130, and the cover body 111 and the radiator 130 form an accommodating space;

[0050] Antenna assembly 112 is disposed on the side of cover body 111 facing PCBA assembly 120, and antenna assembly 112 is located within the receiving space.

[0051] The cover body 111 typically has multiple antenna assemblies 112 attached to it with adhesive backing. Usually, there is an even number of antenna assemblies 112. The number of antenna assemblies 112 is selected according to different supported frequency bands. Usually, an even number of antenna assemblies 112 of the same frequency band are used for installation. In this embodiment, eight antenna assemblies 112 are used. Four of the eight antenna assemblies 112 are located at the four corners of the cover body 111, and the other four antenna assemblies 112 are located at the center of the four sides of the cover body 111. This arrangement can make the antenna assemblies 112 of the same frequency band far apart, thereby improving the isolation between the antenna assemblies 112 of the same frequency band and avoiding interference between the antenna assemblies 112 of the same frequency band.

[0052] It should be noted that no additional antenna bracket is needed to support the antenna assembly 112. The antenna assembly 112 is attached and fixed to the side of the cover body 111 facing the PCBA assembly 120, forming an integral upper cover assembly 110, which realizes the function of the indoor small base station 100. This effectively reduces the height of the cover body 111, thereby reducing the overall size and weight of the indoor small base station 100. The antenna assembly 112 is interconnected with the signal through the GND and RF springs of the PCBA assembly 120.

[0053] Figure 4 This is a schematic diagram of an antenna assembly according to an embodiment of the present invention.

[0054] In one feasible implementation, such as Figure 4 As shown, the antenna assembly 112 includes:

[0055] The fixing plate 1121 is fixedly connected to the cover body 111;

[0056] A connecting block 1122 is disposed at one end of a fixing plate 1121. The connecting block 1122 has a GND contact 1123 and an RF contact 1124 on the side facing the PCBA assembly 120.

[0057] The connecting block 1122 includes a right-angle flexible plate and a rigid plate. The right-angle flexible plate includes a first right-angle plate and a second right-angle plate that are vertically arranged. The right-angle flexible plate is integrally formed with the fixing plate 1121. The first right-angle plate is arranged opposite to the fixing plate 1121, and the second right-angle plate is connected to the fixing plate 1121. There is a certain distance between the first right-angle plate and the fixing plate 1121. The rigid plate is set at this position to support the right-angle flexible plate and ensure that the GND spring 123 and the GND contact 1123 are in contact. That is, the rigid plate is set on the side of the first right-angle plate facing the cover body 111. At the same time, the RF spring 124 is in contact with the RF contact 1124. The first right-angle plate is provided with the GND contact 1123 and the RF contact 1124.

[0058] It should be noted that the fixing plate 1121 and the right-angle flexible board are FPC flexible boards, the rigid board is a PCB rigid board, and the cover body 111 is made of plastic. The fixing plate 1121 has adhesive backing on the side facing the cover body 111, so that the fixing plate 1121 is fixedly connected to the cover body 111 by the adhesive backing. The rigid board can improve the support strength for the GND contact 1123 and RF contact 1124. Therefore, adhesive backing can also be provided on the side of the first right-angle plate facing the cover body 111, and the first right-angle plate is fixedly connected to the rigid board by the adhesive backing.

[0059] Figure 3 This is a schematic diagram of a PCBA assembly according to an embodiment of the present invention.

[0060] In one feasible implementation, such as Figure 3 As shown, PCBA assembly 120 includes:

[0061] PCB board 121, on which GND spring 123 and RF spring 124 are provided;

[0062] The sheet metal shielding cover 122 is fixedly mounted on the PCB board 121.

[0063] Among them, the GND spring 123 and RF spring 124 are soldered on the PCB board 121, and the sheet metal shielding cover 122 is soldered on the PCB board 121. The sheet metal shielding cover 122 contains radio frequency related components and power supply related components. The sheet metal shielding cover 122 can avoid electronic interference between the components, ensure the normal operation of the related components, and thus ensure the working stability of the indoor small base station 100.

[0064] It should be noted that the PCB board 121 also has other components and contacts, which are the basic settings of the indoor small base station 100. They are not related to the reduction of the height and volume of the indoor small base station 100, the reduction of cost, and the improvement of economic efficiency in this application, and will not be described in detail.

[0065] The PCBA assembly 120 includes multiple sheet metal shielding covers 122. By directly welding the sheet metal shielding covers 122 onto the PCB board 121, the height of the sheet metal shielding covers 122 can be reduced, further reducing the overall height of the cover body 111, thereby reducing the overall volume of the indoor small base station 100 and effectively reducing the weight of the indoor small base station 100.

[0066] Figure 5 This is a schematic diagram of a sheet metal shielding cover according to an embodiment of the present invention.

[0067] In one feasible implementation, such as Figure 5 As shown, the sheet metal shielding cover 122 includes:

[0068] The lower frame of the shielding cover 1221 is fixedly connected to the PCB board 121;

[0069] The shielding cover 1222 is fitted onto the lower frame 1221 of the shielding cover.

[0070] The lower frame 1221 of the shielding cover is directly soldered onto the PCB board 121. A suction cup is provided inside the lower frame 1221 of the shielding cover. A robotic arm picks up the suction cup and fixes it onto the PCB board 121 for soldering, which improves the positioning accuracy of the lower frame 1221 of the shielding cover. Some components have partial protrusions, so the corresponding upper cover 1222 of the shielding cover has a clearance protrusion. Some components are basically flat, so there is no need to set a clearance protrusion on the upper cover 1222 of the shielding cover.

[0071] It should be noted that the two-piece detachable design of the lower frame 1221 and the upper cover 1222 of the shielding cover facilitates the maintenance, monitoring and debugging of the internal components of the sheet metal shielding cover 122, improves the debugging efficiency of the PCBA assembly 120, and thus improves the production efficiency of the indoor small base station 100.

[0072] In summary, by combining the antenna assembly 112 and the cover body 111 into an integrated upper cover assembly 110, and then combining the PCB board 121 and the sheet metal shielding cover 122 into an integrated PCBA assembly 120, and then connecting it with the heat sink 130, the indoor small base station 100 is modularized, which effectively reduces the height of each module (upper cover assembly 110 and PCBA assembly 120), thereby directly reducing the overall volume, weight and production cost of the indoor small base station 100.

[0073] In one feasible implementation, the upper cover 1222 of the shielding cover and the lower frame 1221 of the shielding cover are connected by an interference fit.

[0074] The lower frame of the shielding cover 1222 is made of sheet metal through a one-piece stamping process, ensuring that there are no gaps around the edges and corners of the lower frame 1221, i.e., the corners are rounded. Meanwhile, the upper cover 1222 of the shielding cover uses a micro-interference fit to ensure a tight fit between the upper cover 1222 and the upper frame 1221. Experiments have shown that, combined with optimized layout on the PCB board 121, the reliability of the sheet metal shielding cover 122 in the indoor small base station 100 can be guaranteed. This integration of the PCB board 121 and the shielding cover 122 effectively reduces the height of the indoor small base station 100.

[0075] It should be noted that the shielding cover in the related technology is manufactured by bending process. Due to the limitations of the processing technology, gaps exist around the edges, and the isolation of the components inside the shielding cover can only reach 40dBc to 50dBc. This application uses sheet metal stamping process to effectively remove the gaps in the lower frame 1222 of the shielding cover. At the same time, the interference fit between the lower frame 1222 and the upper cover 1222 of the shielding cover further improves the isolation of the internal components. The sheet metal shielding cover 122 of this application can achieve an isolation of 70dBc to 80dBc, thereby reducing electromagnetic interference between components, ensuring the stability and reliability of signal transmission of the indoor small base station 100, and avoiding safety risks caused by high voltage and high power components, that is, improving the safety of use of the indoor small base station 100.

[0076] In one possible implementation, the top cover assembly 110 is detachably connected to the radiator 130; the detachable connection is a snap-fit ​​connection, a hinged connection, a threaded connection, or a bolted connection.

[0077] In order to facilitate the maintenance and replacement of PCBA assembly 120 and antenna assembly 112, the substrate of heat sink 130 and cover body 111 are usually set to be detachably connected. The detachable connection method can be snap connection, hinge connection, threaded connection or bolt connection, or other methods that can realize the detachment of the substrate of heat sink 130 and cover body 111. These will not be listed one by one here.

[0078] It should be noted that this embodiment uses a snap-fit ​​connection to achieve a detachable connection between the base plate of the heat sink 130 and the cover body 111. Specifically, an mounting port can be provided on the base plate of the heat sink 130 or the cover body 111. Correspondingly, a retaining plate is provided on the cover body 111 or the base plate of the heat sink 130. The base plate of the heat sink 130 and the cover body 111 are snapped together through the retaining plate and the mounting port. At the same time, a prying opening is provided on the base plate of the heat sink 130 or the cover body 111. When repair or replacement is required, a flathead screwdriver or other tools can be inserted into the prying opening to separate the heat sink 130 and the cover assembly 110. Compared with other connection methods, the snap-fit ​​connection can reduce the production and assembly time of the indoor small base station 100, thereby reducing the production cost of the indoor small base station 100 and improving economic efficiency.

[0079] In one feasible implementation, the indoor small base station 100 further includes:

[0080] The indicator light is housed in a recess within the top cover assembly 110.

[0081] In this design, by providing a receiving groove on the cover body 111 of the upper cover assembly 110 to accommodate indicator lights, cross-lighting caused by multiple indicator lights is avoided through physical isolation. This reduces the use of light guide columns, lowers the cost of the indoor small base station 100, and improves its economic efficiency. On the other hand, it reduces the installation difficulty of the indoor small base station 100 and improves its installation efficiency.

[0082] It should be noted that the indoor small base station 100 is controlled via OM software. The OM software can be used to add on / off and brightness adjustment functions for the indicator lights. During nighttime hours, such as from 10:00 PM to 6:00 AM, the indicator lights can be turned off to avoid light pollution and disturbance to residents. The indicator light off time shown here is just an example; it can be set according to actual needs.

[0083] In one feasible implementation, the GND contact 1123 and the RF contact 1124 are gold-plated contacts, and the GND spring 123 and the RF spring 124 are gold-plated springs.

[0084] The contacts and springs are all gold-plated, which improves their resistance to oxidation and corrosion, extending the service life of the indoor small base station 100. Gold also has good conductivity, maintaining high conductivity of the contacts and springs even at high temperatures or in corrosive environments, ensuring the stability of the indoor small base station 100. Due to the good lubricity of gold, the contacts and springs are not easily worn, further improving the service life of the indoor small base station 100. Gold can be directly connected by soldering, reducing the manufacturing difficulty of the PCBA assembly 120 and the antenna assembly 112.

[0085] It should be noted that this indoor small base station 100 includes: a top cover assembly 110, a PCBA assembly 120, and a heat sink 130. The top cover assembly 110 and the heat sink 130 are combined to form a housing assembly, and an accommodating space is formed between the top cover assembly 110 and the heat sink 130. The PCBA assembly 120 is located within the accommodating space. The PCBA assembly 120 and the side of the heat sink 130 facing the top cover assembly 110 are fixedly connected by screws. The top cover assembly 110 has a built-in antenna, and an antenna connection contact point is provided on the side of the top cover assembly 110 facing the PCBA assembly 120. An antenna signal connection spring is provided on the side of the PCBA assembly 120 facing the top cover assembly 110, and the spring makes contact with the contact point. This three-piece overall architecture ensures the miniaturization and lightweight of this indoor small base station 100. On the one hand, it can effectively reduce the size and weight of the indoor small base station 100; on the other hand, it can effectively control the cost of the indoor small base station 100 and improve its economic efficiency.

[0086] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0087] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0088] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An indoor small base station, characterized in that, The indoor small base station includes: a top cover assembly, a PCBA assembly, and a heat sink. The top cover assembly is connected to the heat sink, and an accommodating space is formed between the top cover assembly and the heat sink. The PCBA assembly is located within the accommodating space. The PCBA assembly is fixedly connected to the side of the heat sink facing the top cover assembly. A contact point is provided on the side of the top cover assembly facing the PCBA assembly, and a spring contact is provided on the side of the PCBA assembly facing the top cover assembly. The spring contact is in contact with the contact point.

2. The indoor small base station according to claim 1, characterized in that, The contacts include GND contacts and RF contacts; the springs include GND springs and RF springs, with the GND springs contacting and connecting to the GND contacts, and the RF springs contacting and connecting to the RF contacts.

3. The indoor small base station according to claim 2, characterized in that, The upper cover assembly includes: A cover body is disposed on the radiator, and the cover body and the radiator form the receiving space; An antenna assembly is disposed on the side of the cover body facing the PCBA assembly, and the antenna assembly is located within the receiving space.

4. The indoor small base station according to claim 3, characterized in that, The antenna assembly includes: A fixing plate is fixedly connected to the cover body; A connecting block is disposed at one end of the fixing plate, and the GND contact and the RF contact are provided on the side of the connecting block facing the PCBA assembly.

5. The indoor small base station according to claim 2, characterized in that, The PCBA assembly includes: PCB board, on which the GND spring and the RF spring are provided; A sheet metal shielding cover is fixedly mounted on the PCB board.

6. The indoor small base station according to claim 5, characterized in that, The sheet metal shielding cover includes: The lower frame of the shielding cover is fixedly connected to the PCB board; The shielding cover is fitted onto the lower frame of the shielding cover.

7. The indoor small base station according to claim 6, characterized in that, The upper cover of the shielding cover and the lower frame of the shielding cover are connected by an interference fit.

8. The indoor small base station according to claim 1, characterized in that, The top cover assembly is detachably connected to the radiator; the detachable connection is a snap-fit ​​connection, a hinged connection, a threaded connection, or a bolt connection.

9. The indoor small base station according to claim 1, characterized in that, The indoor small base station also includes: Indicator light: The upper cover assembly has a receiving groove, and the indicator light is disposed in the receiving groove.

10. The indoor small base station according to any one of claims 2 to 7, characterized in that, The GND contact and the RF contact are gold-plated contacts, and the GND spring and the RF spring are gold-plated springs.

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