A shielding cover for a base station radio frequency power amplifier module

Abstract

The utility model discloses a shielding cover for a base station radio frequency power amplifier module, which relates to the technical field of base station radio frequency power amplifier modules. It includes a main cover body component and a cover assembly. The cover assembly is installed on the top of the main cover body component, and fixing blocks are symmetrically arranged at the lower edges of the left and right sides of the main cover body component. A welding strip is embedded at the bottom edge of the main cover body component, and shielding coatings are sprayed on the outer surfaces of the main cover body component and the cover assembly. For this shielding cover of the base station radio frequency power amplifier module, by setting the main cover body component and using its structure in cooperation with the cover assembly, it can provide good structural protection for the internal radio frequency power amplifier module. At the same time, by using the shielding coatings sprayed on the surfaces of both, it can provide a good shielding effect against external interference as much as possible, thereby ensuring the stable operation of the radio frequency power amplifier module. At the same time, the structural settings of the fixing blocks in cooperation with the main cover body component and the welding strip can achieve different installation methods to ensure the flexibility and convenience of use.

Description

Technical Field

[0001] This utility model relates to the technical field of base station radio frequency power amplifier modules, specifically a shielding cover for a base station radio frequency power amplifier module. Background Technology

[0002] The base station radio frequency (RF) power amplifier module is a core component of a radio transmission system. Its essence is to amplify weak radio frequency signals to sufficient power to achieve long-distance transmission or strong interference effects. In drone countermeasures, the performance of the RF power amplifier module directly determines key indicators such as interference distance, frequency band coverage, and energy efficiency.

[0003] The working principle of an RF power amplifier module is based on the transistor effect. By applying a bias voltage, the transistor operates in the amplification region, converting the weak energy of the input RF signal into high-power output. This energy conversion process enables the RF signal to cover a greater distance or produce a stronger interference effect.

[0004] Conventional shielding structures are relatively thin and have limited effectiveness in structural protection. In addition, their installation methods are relatively simple and difficult to adapt and adjust to different installation structures within a certain range. Utility Model Content

[0005] The purpose of this invention is to provide a shielding cover for a base station radio frequency power amplifier module to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shielding cover for a base station radio frequency power amplifier module, comprising a main cover component and a cover assembly. The cover assembly is installed on the top of the main cover component, and fixing blocks are symmetrically arranged on the lower edges of the left and right sides of the fixing blocks. A heat-absorbing plate is installed in the middle of the bottom surface of the cover assembly. A welding strip is embedded in the bottom edge of the main cover component, and the outer surfaces of both the main cover component and the cover assembly are coated with a shielding coating. The main cover component includes a shielding cover body, heat sink, bottom frame, fixing holes, welding grooves, protective frame, docking ports, and reinforcing ribs. Heat sinks are arranged on both sides of the shielding cover body, and a bottom frame is provided on the bottom edge of the shielding cover body. Fixing holes are vertically opened at the four opposite corners of the bottom frame, and welding grooves are opened at the bottom of the bottom frame. A protective frame is provided on the top of the shielding cover body, and docking ports are vertically opened at the four opposite corners of the protective frame. Reinforcing ribs are provided at the connection between the bottom of the protective frame and the interior of the shielding cover body.

[0007] Furthermore, the reinforcing ribs are arranged in a triangular structure and are equidistantly placed on the upper left and right sides inside the shielding cover body, and the shielding cover body, bottom frame, protective frame and reinforcing ribs are connected by welding.

[0008] Furthermore, the shielding cover body and the heat sink are fixedly connected, and the outer surface structure of the shielding cover body and the heat sink matches the inner surface structure of the welding groove.

[0009] Furthermore, the cover assembly includes a shielding cover, a support frame, heat dissipation fins, an embedding groove, and a docking post. The shielding cover has a support frame at its edge, heat dissipation fins on its top surface, an embedding groove in the middle of its bottom surface, and docking posts vertically arranged at the four opposite corners of its bottom.

[0010] Furthermore, the shielding cover, support frame, and docking pile are integrated into a single structure, and the heat dissipation fins are fixedly connected to the top surface of the shielding cover.

[0011] Furthermore, the inner surface structure of the embedding groove matches the outer surface structure of the heat absorption plate, and the heat absorption plate is tightly attached to the inner surface of the embedding groove; the outer surface structure of the docking pile matches the inner surface structure of the docking socket.

[0012] Furthermore, the fixing block includes a main block body, an assembly hole, and a docking structure. The main block body has an assembly hole vertically opened at one end away from the main cover component.

[0013] Furthermore, the main block is arranged in a "Z" shape, and the main block and the main cover are movably connected. The surface structure of the docking structure matches the side surface structure of the bottom frame.

[0014] This utility model provides a shielding cover for a base station radio frequency power amplifier module, which has the following beneficial effects:

[0015] 1. This utility model, through the main cover component and the protective cover assembly, wherein the entire protective cover assembly utilizes the interlocking structure between the docking pins at the bottom of the shielding cover and the docking ports located at the four opposite corners of the protective frame, to achieve rapid docking and assembly or structural disassembly between the main cover component and the protective cover assembly. Utilizing the above-mentioned structural design, the detachable shielding cover and shielding cover, combined with the shielding coating sprayed on the surface, can ensure the entire structure provides excellent structural isolation from external electromagnetic interference to the greatest extent, while also providing effective structural protection. This provides sufficient structural protection for the RF power amplifier module and ensures its stable operation. Furthermore, the structure of heat sinks, heat absorption plates, and heat dissipation fins allows the entire device structure to provide effective structural heat dissipation during use, preventing heat dissipation and conduction issues within the combined and closed main cover component and protective cover assembly from affecting the normal operation of the internal RF power amplifier module, thus achieving a good structural protection effect.

[0016] 2. This utility model features a bottom frame at the bottom edge of the shielding cover body, with a welding groove on the bottom surface of the bottom frame and a welding strip embedded inside the groove. This structure allows the entire main shielding component to be fixed to the mounting surface via welding. Additionally, fixing holes at the four opposite corners of the bottom frame, used with screws, also secure the main shielding component to the mounting surface. Furthermore, the fixing blocks, through their structural compatibility with the bottom frame's side surfaces, allow the fixing blocks to mate with any of the four sides of the bottom frame. The number of fixing blocks can be flexibly adjusted according to installation needs. Combined with the mounting holes and screws, this provides a secure mounting structure for the entire main shielding component. This structure allows for flexible adaptation and adjustment within a certain range based on different mounting surfaces, enabling the selection of any installation method and ensuring the flexibility and convenience of the device structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the axial side view of the shielding cover for a base station radio frequency power amplifier module according to the present invention.

[0018] Figure 2 This is an exploded structural diagram of the shielding cover for a base station radio frequency power amplifier module according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the main cover component of a base station radio frequency power amplifier module shielding cover according to the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the cover assembly of a base station radio frequency power amplifier module shielding cover according to the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the fixing block of the shielding cover for a base station radio frequency power amplifier module according to the present invention.

[0022] In the diagram: 1. Main shielding component; 101. Shielding shield body; 102. Heat sink; 103. Base frame; 104. Fixing hole; 105. Welding groove; 106. Protective frame; 107. Butt joint; 108. Reinforcing rib; 2. Protective cover assembly; 201. Shielding cover; 202. Support frame; 203. Heat sink fins; 204. Embedded groove; 205. Butt joint; 3. Fixing block; 301. Main block; 302. Assembly hole; 303. Butt joint structure; 4. Heat absorber plate; 5. Welding strip; 6. Shielding coating. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1 to 5 As shown, a base station radio frequency power amplifier module shielding cover includes a main cover component 1 and a cover assembly 2. The cover assembly 2 is installed on the top of the main cover component 1, and fixing blocks 3 are symmetrically arranged on the lower edges of the left and right sides of the main cover component 1. A heat-absorbing plate 4 is installed in the middle of the bottom surface of the cover assembly 2. Welding strips 5 are embedded in the bottom edge of the main cover component 1, and the outer surfaces of both the main cover component 1 and the cover assembly 2 are coated with a shielding coating 6. The main cover component 1 includes a shielding cover body 101, heat sinks 102, a bottom frame 103, fixing holes 104, welding grooves 105, a protective frame 106, a mating socket 107, and reinforcing ribs 108. Heat sinks 102 are arranged on both sides of the shielding cover body 101, and a bottom frame 103 is provided on the bottom edge of the shielding cover body 101. Fixing holes 104 are vertically opened at the four diagonal corners of the bottom frame 103, and welding grooves 105 are opened at the bottom of the bottom frame 103. The top of the shield body 101 is provided with a protective frame 106, and the four opposite corners of the protective frame 106 are vertically provided with docking ports 107. The bottom of the protective frame 106 and the connection between it and the interior of the shield body 101 are provided with reinforcing ribs 108. The reinforcing ribs 108 adopt a triangular structure and are equidistantly arranged on the upper left and right sides of the interior of the shield body 101. The shield body 101, the bottom frame 103, the protective frame 106 and the reinforcing ribs 108 are connected by welding. The shield body 101 and the heat sink 102 are fixedly connected. The outer surface structure of the shield body 101 and the heat sink 102 matches the inner surface structure of the welding groove 105. By using the docking post 205 at the bottom of the shield cover 201 and the docking ports 107 at the four opposite corners of the protective frame 106 to insert into each other, the main shield component 1 and the cover assembly 2 can be quickly connected and assembled, or the structure can be disassembled.

[0025] like Figures 1 to 5As shown, the cover assembly 2 includes a shielding cover 201, a support frame 202, heat dissipation fins 203, an embedding groove 204, and a docking post 205. The shielding cover 201 has a support frame 202 along its edge, and heat dissipation fins 203 on its top surface. An embedding groove 204 is formed in the center of the bottom surface of the shielding cover 201, and docking posts 205 are vertically positioned at the four opposite corners of the bottom of the shielding cover 201. The shielding cover 201, support frame 202, and docking posts 205 are integrally formed. The heat dissipation fins 203 are fixedly connected to the top surface of the shielding cover 201. The inner surface structure of the embedding groove 204 matches the outer surface structure of the heat absorption plate 4, and the heat absorption plate 4 is tightly fitted to the inner surface of the embedding groove 204. The outer surface structure of the docking post 205 matches the inner surface of the docking socket 107. The components are mutually matched. The fixing block 3 includes a main block 301, an assembly hole 302, and a docking structure 303. The main block 301 has an assembly hole 302 vertically opened at the end away from the main cover component 1. The main block 301 is arranged in a "Z" shape and is movably connected to the main cover component 1. The surface structure of the docking structure 303 matches the side surface structure of the bottom frame 103 and can be fixed to the mounting structure surface by welding. At the same time, the fixing holes 104 opened at the four opposite corners of the bottom frame 103, together with the use of screws, can also fix the entire main cover component 1 to the mounting structure surface. In addition, the structure of the fixing block 3, together with the assembly hole 302 and the use of screws, provides different installation and fixing methods for the entire main cover component 1.

[0026] In summary, as Figures 1 to 5 As shown, when using the shielding cover for the base station radio frequency power amplifier module, first select an appropriate installation method according to the setting of the installation structure surface. If welding strip 5 is required, simply embed the welding strip 5 into the welding groove 105 opened on the bottom surface of the bottom frame 103, and then cover the entire main cover component 1 around the base station radio frequency power amplifier module. With the help of the electric welding pen, weld the main cover component 1 to the installation structure surface.

[0027] Alternatively, the fixing holes 104 at the four opposite corners of the base frame 103 can be selected, and screws can be used to directly fix the entire main cover component 1 to the mounting structure surface. Or, an appropriate number of fixing blocks 3 can be fastened to the side of the base frame 103 using the docking structure 303, and an appropriate number of screws can be screwed into the assembly hole 302 at one end of the main block 301, thereby using the fixing blocks 3 to fix and limit the main cover component 1.

[0028] After the main housing component 1 is installed, the heat absorption plate 4 is embedded into the embedding groove 204 opened in the center of the bottom of the shielding cover 201. At the same time, the docking pins 205 at the four opposite corners of the bottom of the shielding cover 201 are vertically inserted into the docking sockets 107 at the four opposite corners of the protective frame 106. This achieves a quick docking and assembly between the main housing component 1 and the protective cover assembly 2. With the shielding coating 6, it provides good anti-interference shielding for the internal radio frequency power amplifier module. The heat dissipation fins 203 and heat sink 102, together with the heat absorption plate 4, play an assisting role in heat conduction, thereby dissipating heat for the interior of the closed main housing component 1 and protective cover assembly 2.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A shielding cover for a base station radio frequency power amplifier module, comprising a main cover component (1) and a protective cover assembly (2), characterized in that: The main cover component (1) is equipped with a cover assembly (2) on its top, and fixing blocks (3) are symmetrically arranged on the lower edges of the left and right sides of the main cover component (1). A heat-absorbing plate (4) is installed in the middle of the bottom surface of the cover assembly (2). Welding strips (5) are embedded in the bottom edge of the main cover component (1). The outer surfaces of the main cover component (1) and the cover assembly (2) are both coated with a shielding coating (6). The main cover component (1) includes a shielding cover body (101), a heat sink (102), a bottom frame (103), fixing holes (104), a welding groove (105), a protective frame (106), a docking port (107), and a reinforcement. The shielding body (101) has heat sinks (102) on both sides, a bottom frame (103) on the bottom edge, a fixing hole (104) at each of the four opposite corners, a welding groove (105) at the bottom of the bottom frame (103), a protective frame (106) on the top, a mating socket (107) at each of the four opposite corners, and a reinforcing rib (108) at the bottom of the protective frame (106) where it connects to the inside of the shielding body (101).

2. The shielding cover for a base station radio frequency power amplifier module according to claim 1, characterized in that, The reinforcing ribs (108) are arranged in a triangular structure and are equidistantly placed on the upper left and right sides inside the shield body (101). The shield body (101), the bottom frame (103), the protective frame (106) and the reinforcing ribs (108) are connected by welding.

3. The shielding cover for a base station radio frequency power amplifier module according to claim 1, characterized in that, The shield body (101) and the heat sink (102) are fixedly connected, and the outer surface structure of the shield body (101) and the heat sink (102) matches the inner surface structure of the welding groove (105).

4. A shielding cover for a base station radio frequency power amplifier module according to claim 1, characterized in that, The cover assembly (2) includes a shielding cover (201), a support frame (202), heat dissipation fins (203), an embedding groove (204), and a docking post (205). The shielding cover (201) has a support frame (202) on its edge, and heat dissipation fins (203) on its top surface. The shielding cover (201) has an embedding groove (204) in the middle of its bottom surface, and docking posts (205) are vertically arranged at the four opposite corners of the bottom of the shielding cover (201).

5. A shielding cover for a base station radio frequency power amplifier module according to claim 4, characterized in that, The shielding cover (201), the support frame (202) and the docking pile (205) are integrated into one structure, and the heat dissipation fins (203) are fixedly connected to the top surface of the shielding cover (201).

6. A shielding cover for a base station radio frequency power amplifier module according to claim 4, characterized in that, The inner surface structure of the embedding groove (204) matches the outer surface structure of the heat absorption plate (4), and the heat absorption plate (4) is tightly attached to the inner surface of the embedding groove (204). The outer surface structure of the docking pile (205) matches the inner surface structure of the docking socket (107).

7. A shielding cover for a base station radio frequency power amplifier module according to claim 1, characterized in that, The fixing block (3) includes a main block (301), an assembly hole (302) and a docking structure (303). The main block (301) has an assembly hole (302) vertically opened at one end away from the main cover component (1).

8. A shielding cover for a base station radio frequency power amplifier module according to claim 7, characterized in that, The main block (301) is arranged in a "Z" shape, and the main block (301) and the main cover component (1) are connected in a movable manner. The surface structure of the docking structure (303) matches the side surface structure of the bottom frame (103).

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