A microwave communication radio

Abstract

The utility model relates to radio frequency device field discloses a microwave communication radio frequency device, including outer shielding cover, the outer shielding cover bottom and both sides all are established spring hole no.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency devices, and more particularly to a microwave communication radio frequency device. Background Technology

[0002] Early microwave communication radio frequency devices existed as discrete component assemblies, with basic protection and signal shielding achieved through metal casings. Gradually, they evolved into independent modules with signal processing and energy conversion functions, becoming a key link connecting the signal source and antenna in traditional microwave communication systems, laying the foundation for subsequent applications in fields such as broadcast television transmission and long-distance telephone communication.

[0003] Existing microwave communication radio frequency devices mainly consist of a transmitting link and a receiving link. Their working principle is based on electromagnetic oscillation and signal processing. Through the cooperation of various components, they complete the mutual conversion between baseband signals and microwave signals, realizing efficient and accurate transmission and reception of signals in the microwave frequency band.

[0004] Traditional microwave communication RF devices have weak resistance to external electromagnetic interference. The shielding design of their transmit and receive links is often inadequate due to cost or size limitations. When there are interference sources such as industrial electromagnetic radiation or communication signals in adjacent frequency bands, the interference signals can easily break through the suppression range of the receiving filter and mix into the target microwave signal, resulting in a decrease in the signal-to-noise ratio at the receiving end, signal distortion, and an increase in the bit error rate. Furthermore, the heat dissipation of traditional microwave communication RF devices mostly relies on a single heat sink or small fan, which has a limited heat dissipation area and low heat conduction efficiency. When the device operates at high power for a long time, the internal temperature is prone to continuous rise, which can not only lead to a decrease in the linearity of the power amplifier and unstable output power, but may also cause the device to age faster due to overheating, shortening the service life of the device. Therefore, a new microwave communication RF device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a microwave communication radio frequency device, which aims to improve the problems of poor interference shielding and poor heat dissipation of traditional microwave communication radio frequency devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A microwave communication radio frequency device includes an outer shield, with spring holes on the bottom and both sides of the outer shield. A spring is fixedly connected to one end of the inner wall of each spring hole, and a baffle is fixedly connected to one end of the spring. A limit pin is fixedly connected to one side of the baffle. A middle shield is engaged with the inner wall of the outer shield. A spring hole is provided at the bottom of the middle shield, with a spring fixedly connected to one end of the inner wall of the second spring hole. A baffle is fixedly connected to one end of the second spring, and a limit pin is fixedly connected to one side of the baffle. An inner shield is engaged with the inner wall of the middle shield, and sliding rods are fixedly connected to both sides of the inner wall of the inner shield.

[0007] As a further description of the above technical solution: The inner wall of the inner shielding cover is slidably connected to a placement box. A thermally conductive silicone pad is provided at the bottom of the inner wall of the placement box. Multiple thermally conductive pillars are evenly arranged on both sides of the top of the thermally conductive silicone pad. The main body of the radio frequency device is provided in the middle of the thermally conductive silicone pad. A fan is fixedly connected to the top of the placement box.

[0008] As a further description of the above technical solution: Air inlets are provided on both sides of the outer shielding surface, and the air inlets extend into the interior of the placement box. Air outlets are provided on the top of the outer shielding surface, and the air outlets extend into the interior of the placement box.

[0009] As a further description of the above technical solution: Both the air inlet and the air outlet are equipped with spiral shielding blades on their inner walls, and dustproof nets are fixedly connected inside both the air inlet and the air outlet.

[0010] As a further description of the above technical solution: The placement box has sliding grooves on both sides, and the sliding rod is slidably connected inside the sliding grooves.

[0011] As a further description of the above technical solution: The bottom and both sides of the middle layer shielding cover are provided with a limiting hole, which engages with the limiting pin.

[0012] As a further description of the above technical solution: The bottom of the inner shielding cover has a second limiting hole, which engages with the second limiting pin.

[0013] As a further description of the above technical solution: The bottom of the outer shielding cover is fixedly connected to multiple bases, and the bottom of each base is fixedly connected to a shock-absorbing pad.

[0014] This utility model has the following beneficial effects: 1. In this utility model, a stable shielding structure is constructed by nesting multiple layers of outer, middle and inner shielding covers, which are engaged by springs, limiting pins and corresponding limiting holes. External electromagnetic interference first comes into contact with the outer shielding cover, and part of it is reflected and absorbed. After the residual interference penetrates, it is attenuated by the middle and inner shielding covers in sequence. At the same time, the spiral shielding blades of the air inlet and outlet cause the interference signal to be reflected and lost multiple times. Combined with the dustproof net to block impurities, electromagnetic interference is weakened in all aspects, creating a low-interference environment for the main body of the radio frequency device and ensuring its stable operation.

[0015] 2. In this utility model, the fan actively operates to accelerate the airflow inside the placement box. The heat generated by the main body of the RF device is conducted to the heat-conducting column through the thermally conductive silicone pad, increasing the heat dissipation area. At the same time, external cold air is introduced through the air inlet. After the spiral shielding blades attenuate the interference, it forms a circulation with the hot air inside the placement box. The hot air carries heat and is discharged from the air outlet. The dustproof net blocks dust. The multi-layer structure works together to achieve efficient heat dissipation and ensure the stable operation of the RF device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a microwave communication radio frequency device proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a microwave communication radio frequency device placement box proposed in this utility model; Figure 3 This is a schematic diagram of the structure of a spring in a microwave communication radio frequency device proposed in this utility model; Figure 4 This is a schematic diagram of the structure of a slide bar for a microwave communication radio frequency device proposed in this utility model; Figure 5 This is a schematic diagram of the structure of a spring-heat-conducting column for a microwave communication radio frequency device proposed in this utility model. Figure 6 This is a schematic diagram of the structure of spring 2 in a microwave communication radio frequency device proposed in this utility model.

[0017] Legend: 1. Outer shielding cover; 2. Air inlet; 3. Air outlet; 4. Base; 5. Anti-vibration pads; 6. Middle shielding cover; 7. Inner shielding cover; 8. Placement box; 9. RF unit body; 10. Thermal conductive silicone pad; 11. Spring hole one; 12. Baffle one; 13. Spring one; 14. Spiral shielding blades; 15. Baffle two; 16. Spring hole two; 17. Limiting pin one; 18. Limiting hole one; 19. Spring two; 20. Slide rod; 21. Slide groove; 22. Dustproof net; 23. Limiting hole two; 24. Fan; 25. Heat-conducting column; 26. Limiting pin two. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-4 and Figure 6 This utility model provides an embodiment of a microwave communication radio frequency device, including an outer shield 1. The outer shield 1 serves as the outermost protective structure, initially blocking external electromagnetic interference and physical impacts, creating a basic protective environment for internal components. Spring holes 11 are provided on the bottom and both sides of the outer shield 1. A spring 13 is fixedly connected to one end of the inner wall of each spring hole 11, and a baffle 12 is fixedly connected to one end of each spring 13. A limit pin 17 is fixedly connected to one side of the baffle 12. When the middle shield 6 is installed, the elastic force of the spring 13 pushes the baffle 12, causing the limit pin 17 to extend and engage with the corresponding limit hole in the middle shield 6, achieving a stable connection between the outer and middle shields. Furthermore, the spring structure can buffer impacts and enhance protection. For structural stability, the inner wall of the outer shield 1 is fitted with the middle shield 6. The bottom of the middle shield 6 has a spring hole 16. One end of the inner wall of the spring hole 16 is fixedly connected to a spring 19. One end of the spring 19 is fixedly connected to a baffle 15. One side of the baffle 15 is fixedly connected to a limit pin 26. The spring 19, the baffle 15 and the limit pin 26 cooperate to connect the middle and inner shields 7, further strengthening the connection stability and buffer protection capability of the multi-layer shielding structure. The multi-layer nesting can gradually attenuate external electromagnetic interference. The inner wall of the middle shield 6 is fitted with the inner shield 7. Both sides of the inner wall of the inner shield 7 are fixedly connected to sliding rods 20. The sliding rods 20 provide guidance and support for the sliding of the placement box 8, ensuring that the sliding process of the placement box 8 is stable and smooth.

[0020] Reference Figure 5The inner shield 7 has a sliding connection to a placement box 8, which can slide relative to the inner shield 7, facilitating the installation and maintenance of the RF device body 9 and improving operational convenience. A thermally conductive silicone pad 10 is provided at the bottom of the inner wall of the placement box 8. The thermally conductive silicone pad 10 has good thermal conductivity and flexibility, closely adhering to the bottom of the RF device body 9 to dissipate the operating heat of the RF device body 9, while also providing cushioning and shock absorption to protect the RF device body 9. Multiple thermally conductive pillars 25 are evenly arranged on both sides of the top of the thermally conductive silicone pad 10, increasing the heat transfer area. Together with the thermally conductive silicone pad 10, this accelerates the dissipation of heat from the RF device body 9 to the placement box 8 and surrounding air. The RF device body 9 is located in the middle of the thermally conductive silicone pad 10. A fan 24 is fixedly connected to the top of the placement box 8. The operation of the fan 24 accelerates the airflow inside the placement box 8, quickly carrying away the heat dissipated by the thermally conductive structure, achieving active heat dissipation, ensuring that the RF device body 9 operates in a suitable temperature environment, and avoiding performance or lifespan issues due to overheating.

[0021] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 The outer shield 1 has air inlets 2 on both sides of its surface. The air inlets 2 extend into the interior of the placement box 8. The air inlets 2 provide a channel for external cold air to enter, replenish the air consumed by heat dissipation in the placement box 8, and maintain air circulation. The top of the outer shield 1 has air outlets 3. The air outlets 3 extend into the interior of the placement box 8 and are used to exhaust the heated air in the placement box 8, forming an air circulation path to ensure continuous and effective heat dissipation.

[0022] Reference Figures 3-5 Both the air inlet 2 and the air outlet 3 are equipped with spiral shielding blades 14 on their inner walls. The spiral shielding blades 14 utilize the electromagnetic shielding principle to reflect and attenuate incoming electromagnetic interference signals multiple times. While ventilating, they also block external electromagnetic interference from entering, ensuring a clean internal electromagnetic environment. Both the air inlet 2 and the air outlet 3 are fixedly connected with dustproof nets 22. The dustproof nets 22 filter dust and impurities in the air, preventing them from entering the equipment and accumulating inside, thus avoiding affecting heat dissipation efficiency and the normal operation of the radio frequency device.

[0023] Reference Figure 4 and Figure 5 The placement box 8 has sliding grooves 21 on both sides, and the sliding rod 20 is slidably connected inside the sliding groove 21. The sliding groove 21 and the sliding rod 20 cooperate to limit the sliding trajectory of the placement box 8, so that the sliding process is smooth and the placement box 8 is easy to disassemble and assemble.

[0024] Reference Figure 5 and Figure 6Limiting holes 18 are provided at the bottom and on both sides of the middle layer shielding cover 6. The limiting holes 18 engage with the limiting pins 17. Through the engagement of the limiting holes and the limiting pins, a reliable connection between the outer layer and the middle layer shielding cover 6 is achieved, thus constructing a multi-layer shielding system and improving the electromagnetic shielding effect.

[0025] Reference Figures 1-3 The bottom of the inner shielding cover 7 has a limiting hole 23, which engages with the limiting pin 26 to ensure a stable connection between the middle layer and the inner shielding cover 7, further strengthening the multi-layer shielding structure and enhancing electromagnetic protection for the main body 9 of the radio frequency device.

[0026] Reference Figure 1 The bottom of the outer shield 1 is fixedly connected to multiple bases 4. The bases 4 support the outer shield 1 and internal components, keeping the equipment at a certain distance from the mounting surface, which is conducive to air circulation at the bottom and heat dissipation. The bottom of the base 4 is fixedly connected to anti-vibration pads 5. The anti-vibration pads 5 are made of shock-absorbing material, which can absorb external vibration and impact, reduce the impact of vibration on precision components such as the radio frequency unit body 9, and ensure stable operation of the equipment.

[0027] Working principle: When electromagnetic interference needs to be prevented, the outer shield 1, middle shield 6, and inner shield 7 form a multi-layer shielding structure. The spring 13 inside the spring hole 11 pushes the baffle 12, causing the limiting pin 17 to engage with the limiting hole 18 of the middle shield 6, thus achieving a stable engagement between the outer and middle shields 6. The spring 19 inside the spring hole 16 pushes the baffle 15, causing the limiting pin 26 to engage with the limiting hole 23 of the inner shield 7, thus completing the engagement between the middle and inner shields 7. The nested layers enhance the shielding effect. At the same time, the spiral shielding blades 14 on the inner walls of the air inlet 2 and air outlet 3, while ensuring ventilation and heat dissipation, can reflect and attenuate the incoming electromagnetic interference signals multiple times, further blocking the intrusion of external electromagnetic interference, thus constructing an electromagnetic protection system and ensuring that the main body of the radio frequency device 9 operates stably in a low electromagnetic interference environment.

[0028] When heat dissipation is required, the fan 24 on the top of the housing 8 will start actively to accelerate the airflow inside the housing 8. At this time, part of the heat generated by the RF device body 9 is conducted through contact with the thermal conductive silicone pad 10 at the bottom. After being dispersed by the thermal conductive silicone pad 10, it is further transferred outward by the multiple thermal conductive pillars 25 on both sides. At the same time, the fan 24 drives the airflow to carry the heat. Together with the external cold air introduced by the air inlets 2 on both sides of the outer shield 1, heat exchange is formed inside the housing 8. The dust filter 22 at the air inlet 2 can filter impurities to prevent dust from entering and affecting the equipment. The heat is finally discharged through the air outlet 3 on the top of the outer shield 1, realizing heat dissipation of the RF device body 9 and ensuring its stable operation in a suitable temperature environment.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A microwave communication radio frequency device, comprising an outer shield (1), characterized in that: The outer shield (1) has spring holes (11) at the bottom and on both sides. A spring (13) is fixedly connected to one end of the inner wall of the spring hole (11). A baffle (12) is fixedly connected to one end of the spring (13). A limit pin (17) is fixedly connected to one side of the baffle (12). The inner wall of the outer shield (1) is fitted with a middle shield (6). The bottom of the middle shield (6) has a spring hole (16). A spring (19) is fixedly connected to one end of the inner wall of the spring hole (16). A baffle (15) is fixedly connected to one end of the spring (19). A limit pin (26) is fixedly connected to one side of the baffle (15). The inner wall of the middle shield (6) is fitted with an inner shield (7). A slide rod (20) is fixedly connected to both sides of the inner wall of the inner shield (7).

2. The microwave communication radio frequency device according to claim 1, characterized in that: The inner shield (7) is slidably connected to a placement box (8). A thermally conductive silicone pad (10) is provided at the bottom of the inner wall of the placement box (8). Multiple thermally conductive pillars (25) are evenly arranged on both sides of the top of the thermally conductive silicone pad (10). The radio frequency unit body (9) is provided in the middle of the thermally conductive silicone pad (10). A fan (24) is fixedly connected to the top of the placement box (8).

3. A microwave communication radio frequency device according to claim 2, characterized in that: The outer shield (1) has air inlets (2) on both sides of its surface, and the air inlets (2) penetrate into the interior of the placement box (8). The outer shield (1) has air outlets (3) on its top, and the air outlets (3) penetrate into the interior of the placement box (8).

4. A microwave communication radio frequency device according to claim 3, characterized in that: The inner walls of the air inlet (2) and the air outlet (3) are provided with spiral shielding blades (14), and dustproof nets (22) are fixedly connected inside the air inlet (2) and the air outlet (3).

5. A microwave communication radio frequency device according to claim 2, characterized in that: The placement box (8) has grooves (21) on both sides, and the slide rod (20) is slidably connected inside the grooves (21).

6. A microwave communication radio frequency device according to claim 1, characterized in that: The middle layer shield (6) has a limiting hole (18) at the bottom and on both sides, and the limiting hole (18) engages with the limiting pin (17).

7. A microwave communication radio frequency device according to claim 1, characterized in that: The bottom of the inner shield (7) is provided with a limiting hole (23), which engages with the limiting pin (26).

8. A microwave communication radio frequency device according to claim 1, characterized in that: The bottom of the outer shield (1) is fixedly connected to multiple bases (4), and the bottom of the bases (4) is fixedly connected to anti-vibration pads (5).

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