Radio frequency power amplifier with detachable shielding cover

Abstract

The utility model belongs to the technical field of radio frequency power amplifiers, and particularly relates to a radio frequency power amplifier with a detachable shielding cover, which comprises a radio frequency power amplifier main body, the upper end of the radio frequency power amplifier main body is in contact with the shielding cover, and a sliding block is slidably connected in the radio frequency power amplifier main body. The upper end of the sliding block is fixedly connected with a clamping block, a clamping groove is formed in the shielding cover, a threaded rod is rotationally connected into the radio frequency power amplifier body, the outer side of the threaded rod is fixedly connected with a baffle ring, and the baffle ring makes contact with the inner wall of the radio frequency power amplifier body. According to the radio frequency power amplifier, the components such as the sliding block, the clamping block and the threaded rod are arranged, the threaded rod can be rotated to drive the clamping block through the sliding block to be not clamped with the shielding cover any more, then the shielding cover can be disassembled, and the problems that the shielding cover of the radio frequency power amplifier is inconvenient to disassemble and overhaul are solved.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency power amplifier technology, specifically to a radio frequency power amplifier with a removable shield. Background Technology

[0002] As a key component of modern wireless communication systems, radio frequency (RF) power amplifiers (AFAs) undertake the core task of efficiently amplifying weak RF signals. Their built-in metal shielding is a crucial design element for ensuring stable operation and effectively addressing electromagnetic interference (EMI). In complex electromagnetic environments, the high-frequency radiation generated by the amplifier during operation can interfere with nearby electronic devices and even affect its own performance. The shielding, through a closed structure formed by conductive materials, confines the electromagnetic field within its internal space, preventing internal signal leakage and contamination, while also blocking the intrusion of external stray signals. This physical isolation mechanism significantly enhances the amplifier's anti-interference capability, ensuring the purity and stability of the output signal. The shielding design also considers heat dissipation requirements. Its surface undergoes special treatment to optimize heat conduction efficiency, and combined with the internal heat dissipation structure, it can quickly dissipate the heat generated during amplification, preventing overheating from affecting device lifespan.

[0003] According to the utility model disclosed in patent authorization announcement number CN211352158U, the radio frequency power amplifier includes at least one stage amplifier, and the radio frequency power amplifier further includes at least one withstand circuit, each of the withstand circuits being connected in series between the output terminal of the amplifier and the operating power supply; the withstand circuit is used to clamp the saturation output voltage and current of the corresponding amplifier.

[0004] The shielding of RF power amplifiers presents numerous inconveniences in practical applications, the most prominent being the difficulty of disassembly. During routine maintenance, repairs, or equipment upgrades, the difficulty in removing the shielding often requires significant time and effort from staff. This not only reduces work efficiency but can also damage the shielding or the amplifier itself due to improper handling. Furthermore, in emergency situations requiring rapid repair, the cumbersome disassembly process may delay repairs, affecting the normal operation of the equipment and causing unnecessary losses and inconvenience to users. Utility Model Content

[0005] The purpose of this invention is to provide an RF power amplifier with a removable shield, which solves the problem that the shield of the RF power amplifier is inconvenient to remove and is not convenient for maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a radio frequency power amplifier with a detachable shield, comprising a radio frequency power amplifier body, the upper end of which contacts a shield, a slider is slidably connected inside the radio frequency power amplifier body, a locking block is fixedly connected to the upper end of the slider, a locking groove is provided inside the shield, a threaded rod is rotatably connected inside the radio frequency power amplifier body, a retaining ring is fixedly connected to the outer side of the threaded rod, the retaining ring contacts the inner wall of the radio frequency power amplifier body, and a sealing mechanism is provided on the shield.

[0007] Preferably, the card block contacts the main body of the RF power amplifier, and the card block is slidably connected to the card slot. The design of the card block can limit the position of the shielding cover.

[0008] Preferably, the outer side of the threaded rod is provided with positive and negative threads, and the threaded rod is connected to the slider by threads. Through the design of the threaded rod, two sliders can be moved simultaneously.

[0009] Preferably, a knob is fixedly connected to the end of the threaded rod away from the main body of the RF power amplifier. The knob is rotatably connected to the main body of the RF power amplifier, and the design of the knob allows for easy rotation of the threaded rod.

[0010] Preferably, the sealing mechanism includes a support rod, the lower end of the shielding cover is fixedly connected to the support rod, a sealing gasket is slidably sleeved on the outer side of the support rod, a fixing block is fixedly connected to the outer side of the support rod, the fixing block is slidably connected to the sealing gasket, a limiting frame is fixedly connected inside the sealing gasket, the limiting frame contacts the support rod, the limiting frame is slidably connected to the fixing block, and a spring is provided on the outer side of the limiting frame. Through the design of the sealing mechanism, the sealing performance between the RF power amplifier body and the shielding cover can be increased.

[0011] Preferably, the sealing gasket is slidably connected to the shielding cover, and the sealing gasket is in contact with the main body of the radio frequency power amplifier. Through the design of the sealing gasket, the radio frequency power amplifier main body and the shielding cover can be sealed.

[0012] Preferably, one end of the spring contacts the fixing block, and the other end of the spring contacts the sealing gasket. Through the design of the spring, the sealing gasket can be driven to fit into the main body of the radio frequency power amplifier.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by incorporating components such as a slider, a locking block, and a threaded rod, allows the shielding cover to be disassembled by rotating the threaded rod, which in turn causes the locking block to disengage from the shielding cover via the slider. This solves the problem of inconvenient disassembly and maintenance of the shielding cover of the RF power amplifier.

[0015] 2. This utility model, by incorporating components such as a sealing gasket, a support rod, and a spring, allows the sealing gasket to move on the support rod via the spring force, thereby ensuring that the sealing gasket fits snugly against the main body of the RF power amplifier and effectively increasing the sealing performance between the shielding cover and the main body of the RF power amplifier. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 A three-dimensional view of the local structure;

[0018] Figure 3 For the present utility model Figure 1 A partial structural front sectional view;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of part A of the structure.

[0020] In the diagram: 1. Main body of RF power amplifier; 2. Shielding cover; 3. Slider; 31. Locking block; 32. Locking slot; 33. Threaded rod; 34. Retaining ring; 35. Knob; 4. Sealing mechanism; 41. Support rod; 42. Sealing gasket; 43. Fixing block; 44. Limiting bracket; 45. Spring. Detailed Implementation

[0021] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 A radio frequency power amplifier with a detachable shielding cover includes a radio frequency power amplifier body 1, a shielding cover 2 in contact with the upper end of the radio frequency power amplifier body 1, a slider 3 slidably connected inside the radio frequency power amplifier body 1, a locking block 31 fixedly connected to the upper end of the slider 3, a locking groove 32 opened inside the shielding cover 2, the locking block 31 in contact with the radio frequency power amplifier body 1, and the locking block 31 and the locking groove 32 slidably connected. Through the design of the locking block 31, the shielding cover 2 can be limited.

[0023] Please see Figure 2-4The main body 1 of the radio frequency power amplifier has a threaded rod 33 rotatably connected inside. The outer side of the threaded rod 33 is provided with positive and negative threads. The threaded rod 33 is connected to the slider 3 by threads. Through the design of the threaded rod 33, two sliders 3 can be moved at the same time. A retaining ring 34 is fixedly connected to the outer side of the threaded rod 33. The retaining ring 34 contacts the inner wall of the main body 1 of the radio frequency power amplifier. A knob 35 is fixedly connected to the end of the threaded rod 33 away from the main body 1 of the radio frequency power amplifier. The knob 35 is rotatably connected to the main body 1 of the radio frequency power amplifier. Through the design of the knob 35, the threaded rod 33 can be easily rotated. A sealing mechanism 4 is provided on the shielding cover 2.

[0024] Please see Figure 2-4 The sealing mechanism 4 includes a support rod 41. The lower end of the shielding cover 2 is fixedly connected to the support rod 41. A sealing gasket 42 is slidably sleeved on the outside of the support rod 41. The sealing gasket 42 is slidably connected to the shielding cover 2 and contacts the RF power amplifier body 1. Through the design of the sealing gasket 42, the RF power amplifier body 1 and the shielding cover 2 can be sealed. A fixing block 43 is fixedly connected to the outside of the support rod 41. The fixing block 43 is slidably connected to the sealing gasket 42. A limit frame 44 is fixedly connected inside the sealing gasket 42. The limit frame 44 contacts the support rod 41 and is slidably connected to the fixing block 43. A spring 45 is provided on the outside of the limit frame 44. One end of the spring 45 contacts the fixing block 43, and the other end of the spring 45 contacts the sealing gasket 42. Through the design of the spring 45, the sealing gasket 42 can be driven to fit against the RF power amplifier body 1. Through the design of the sealing mechanism 4, the sealing performance between the RF power amplifier body 1 and the shielding cover 2 can be increased.

[0025] The specific implementation process of this utility model is as follows: When the shielding cover 2 is installed with the radio frequency power amplifier body 1, the sealing gasket 42 is brought into contact with the radio frequency power amplifier body 1, so that the sealing gasket 42 can slide on the support rod 41 and squeeze the spring 45. The spring force of the spring 45 can drive the sealing gasket 42 to move, so that the sealing gasket 42 fits with the radio frequency power amplifier body 1, thereby effectively increasing the sealing between the shielding cover 2 and the radio frequency power amplifier body 1.

[0026] By rotating the knob 35, the knob 35 drives the threaded rod 33 to rotate, causing the threaded rod 33 and the slider 3 to move in a threaded motion. This causes the slider 3 to move on the threaded rod 33, which in turn causes the locking block 31 to move. The locking block 31 then slides in the slot 32, so that the locking block 31 is no longer locked to the shielding cover 2. This releases the limit on the shielding cover 2, allowing the shielding cover 2 to be disassembled.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A radio frequency power amplifier with a removable shield, comprising a radio frequency power amplifier body (1), characterized in that: The upper end of the RF power amplifier body (1) is in contact with a shield (2). A slider (3) is slidably connected inside the RF power amplifier body (1). A locking block (31) is fixedly connected to the upper end of the slider (3). A slot (32) is opened inside the shield (2). A threaded rod (33) is rotatably connected inside the RF power amplifier body (1). A retaining ring (34) is fixedly connected to the outside of the threaded rod (33). The retaining ring (34) is in contact with the inner wall of the RF power amplifier body (1). A sealing mechanism (4) is provided on the shield (2).

2. The RF power amplifier with a removable shielding cover according to claim 1, characterized in that: The card block (31) contacts the main body (1) of the radio frequency power amplifier, and the card block (31) is slidably connected to the card slot (32).

3. The RF power amplifier with a removable shielding cover according to claim 1, characterized in that: The threaded rod (33) is provided with positive and negative threads on its outer side, and the threaded rod (33) is connected to the slider (3) by threads.

4. The RF power amplifier with a removable shielding cover according to claim 1, characterized in that: A knob (35) is fixedly connected to one end of the threaded rod (33) away from the RF power amplifier body (1), and the knob (35) is rotatably connected to the RF power amplifier body (1).

5. The RF power amplifier with a removable shielding cover according to claim 1, characterized in that: The sealing mechanism (4) includes a support rod (41). The lower end of the shield (2) is fixedly connected to the support rod (41). A sealing gasket (42) is slidably sleeved on the outside of the support rod (41). A fixing block (43) is fixedly connected to the outside of the support rod (41). The fixing block (43) is slidably connected to the sealing gasket (42). A limiting frame (44) is fixedly connected inside the sealing gasket (42). The limiting frame (44) is in contact with the support rod (41). The limiting frame (44) is slidably connected to the fixing block (43). A spring (45) is provided on the outside of the limiting frame (44).

6. The RF power amplifier with a removable shielding cover according to claim 5, characterized in that: The sealing gasket (42) is slidably connected to the shielding cover (2), and the sealing gasket (42) is in contact with the main body (1) of the radio frequency power amplifier.

7. The RF power amplifier with a removable shielding cover according to claim 5, characterized in that: One end of the spring (45) is in contact with the fixing block (43), and the other end of the spring (45) is in contact with the sealing gasket (42).

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