An active heat dissipation type shielded box for base station testing

Abstract

This utility model discloses an active heat dissipation shielding box for base station testing, relating to the field of shielding box technology. It includes a shielding box body with a fixed base plate at its bottom and a placement plate fixedly connected to the center of the interior. Heat dissipation grooves are provided on both the left and right sides of the shielding box body, and a cleaning and heat dissipation mechanism is installed on the right side of the shielding box body for heat dissipation and cleaning the heat dissipation grooves. This active heat dissipation shielding box for base station testing utilizes the heat dissipation grooves on both sides of the shielding box body to provide auxiliary heat dissipation. A fan inside the heat dissipation box blows air into the interior of the shielding box body, thereby accelerating airflow and achieving auxiliary heat dissipation. A dust filter on the right side of the heat dissipation box prevents dust from entering the interior of the shielding box body while avoiding dust ingress.

Description

Technical Field

[0001] This utility model relates to the field of shielding box technology, specifically to an active heat dissipation shielding box for base station testing. Background Technology

[0002] Active cooling shielded test enclosures are professional equipment used in scenarios such as wireless communication testing and electromagnetic compatibility testing. They have active cooling capabilities, which can effectively solve the problem of excessive temperature caused by prolonged operation of the equipment during testing, ensuring the accuracy and stability of the test. In traditional test enclosures, the internal temperature rises due to prolonged use, which shortens the lifespan of internal electronic components and affects the lifespan of the test enclosure itself.

[0003] To overcome the aforementioned deficiencies, existing technology (Chinese Patent No. CN207070588U, Publication Date: 2018-03-02) provides a shielding box with heat dissipation function. The shielding box includes a main body with a door on the front. A fixing device is provided between the left side of the door and the main body. A cooling fan is located on the left side of the main body, and a heat dissipation grille is located on the right side. A workbench is located at the bottom of the interior of the main body. Lighting lamps are located on the bottom left and right sides of the inner wall of the main body. A slide rail is located at the top of the main body, and a viewing window fixing plate is located above the slide rail. The top of the slide rail is slidably connected to a pulley at the bottom of the viewing window fixing plate. A viewing window is located in the middle of the viewing window fixing plate. A shielding glove is located on the back of the main body. This shielding box with heat dissipation function has a simple structure, is easy to use, and has good heat dissipation effect.

[0004] The aforementioned mechanism achieves heat dissipation by utilizing the cooperation of heat dissipation grilles and cooling fans. However, in actual use, after prolonged use, dust will accumulate on the surface of the heat dissipation grilles due to static electricity, which can easily lead to dust clogging of the heat dissipation grilles during subsequent use, affecting the subsequent heat dissipation performance. Utility Model Content

[0005] The purpose of this invention is to provide an active heat dissipation shielding box for base station testing, in order to solve the problem mentioned in the background art that, in actual use, dust accumulates on the surface of the heat dissipation grid due to electrostatic adsorption after a long period of use, which leads to dust clogging of the heat dissipation grid during subsequent use and affects the subsequent heat dissipation performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an active heat dissipation shielding box for base station testing, comprising a shielding box body, a fixed base plate fixedly connected to the bottom end of the shielding box body, and a placement plate fixedly connected to the middle position inside the shielding box body; heat dissipation slots are provided on both the left and right sides of the shielding box body, and a cleaning and heat dissipation mechanism for heat dissipation inside the shielding box body and cleaning the heat dissipation slots is installed on the right side of the shielding box body, the cleaning and heat dissipation mechanism comprising a heat dissipation box, and the heat dissipation box is fixedly connected to the right side of the shielding box body, a fan is installed on the right side inside the heat dissipation box, and the position of the fan corresponds to the position of the heat dissipation slots; an automatic dust removal mechanism for deflecting and cleaning dust is provided at the bottom end of the heat dissipation box.

[0007] Furthermore, a motor is provided at the upper end of the front end of the heat dissipation box, and the output end of the motor extends into the interior of the heat dissipation box and is equipped with a threaded rod. A movable block is connected to the external thread of the threaded rod, and a cleaning brush is installed on the left side of the movable block. The left side of the cleaning brush is in contact with the right side of the heat dissipation groove.

[0008] Furthermore, the automatic dust removal mechanism includes a drive gear, which is fixedly connected to the outside of the motor output end. A rack meshes with the side of the drive gear. A movable plate is rotatably connected to the bottom of the heat dissipation box, and pressing plates are installed at both the front and rear ends of the movable plate. The position of the rack corresponds to the position of the pressing plate.

[0009] Furthermore, both the front and rear ends of the movable plate extend to the outside of the heat sink and are wound with torsion springs, and the movable plate and the heat sink form an elastic structure through the torsion springs.

[0010] Furthermore, slide rails are provided at both the front and rear ends of the heat sink, and sliders that match the slide rails are fixedly connected to the inner side of the rack. The rack and the heat sink are slidably connected through the slide rails and sliders to form a sliding mechanism.

[0011] Furthermore, a positioning mechanism is installed at each of the four corners of the bottom of the fixed base plate. The positioning mechanism includes a suction cup, and the suction cup is fixedly connected to the four corners of the bottom of the fixed base plate. A piston is slidably connected inside the suction cup, and a pull rod is fixedly connected to the top of the piston. The top of the pull rod passes through and extends to the top of the fixed base plate, and a sealing gasket is attached to the top of the fixed base plate outside the pull rod.

[0012] Furthermore, a connecting spring is wound around the upper end of the outer side of the pull rod, and the pull rod and the fixed base plate form an elastic structure through the connecting spring.

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

[0014] 1. The heat dissipation slots on both sides of the shielding box can play a role in auxiliary heat dissipation. The fan installed inside the heat dissipation box can blow air into the shielding box, thereby accelerating airflow and achieving auxiliary heat dissipation. The right side of the heat dissipation box is a dust filter, which can prevent dust from entering the interior of the shielding box while preventing dust from entering the interior of the heat dissipation box.

[0015] Furthermore, the output end of the motor can drive the threaded rod to rotate. The threaded rod and the movable block are connected by a thread, so that the movable block synchronously drives the cleaning brush to move on the surface of the heat dissipation slot. The cleaning brush can clean the dust adsorbed by static electricity on the surface of the heat dissipation slot, reduce dust residue, and thus ensure better heat dissipation between the fan and the heat dissipation slot.

[0016] Furthermore, when the motor output rotates, it can synchronously drive the drive gear to rotate. The drive gear meshes with the rack, which drives the rack to move downward. When the rack moves downward, it pushes the pressing plate to move synchronously. The movable plate and the heat dissipation box are rotatably connected, which causes the movable plate to deflect. After the movable plate deflects, the dust falling on the surface of the movable plate will slide off due to the angle deflection. When the motor rotates in the opposite direction, the movable plate will automatically reset synchronously through the elastic force of the torsion spring, thereby realizing the closure of the movable plate. The up and down movement of the rack and the rotation of the movable plate stably realize the automatic discharge of dust.

[0017] 2. By pressing the fixed base plate downwards, the gas inside the suction cup is expelled. Then, by pressing the pull rod, the pull rod pushes the piston downwards in sync. After the piston moves to the lower end of the suction cup, pressing the suction cup pushes the excess air from the suction cup to the upper end of the suction cup. The pull rod returns to its original position, and the piston blocks the upper end of the suction cup. At the same time, the return of the pull rod compresses the air inside the suction cup, increasing the gas pressure. The increased gas pressure is squeezed out through the through holes at the four corners of the top of the fixed base plate. Simultaneously, the sealing gasket moves upwards due to the gas compression force, and the gas is automatically squeezed out.

[0018] Furthermore, by utilizing the elasticity of the connecting spring, the sealing gasket and the pull rod can flexibly and automatically control their own positions and reset as needed when moving up and down and resetting, increasing the overall flexibility during use. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model.

[0020] Figure 2 This is a side view of the structure of this utility model.

[0021] Figure 3This is a schematic diagram of the automatic ash removal mechanism of this utility model.

[0022] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model.

[0023] Figure 5 This is a schematic diagram of the cleaning and heat dissipation mechanism of this utility model.

[0024] Figure 6 This is a partially enlarged structural diagram of the automatic dust removal mechanism of this utility model.

[0025] In the diagram: 1. Shielding box body; 2. Placement plate; 3. Heat dissipation groove; 4. Fixed base plate; 5. Heat dissipation box; 6. Fan; 7. Motor; 8. Drive gear; 9. Threaded rod; 10. Movable block; 11. Rack; 12. Movable plate; 13. Torsion spring; 14. Pressing plate; 15. Suction cup; 16. Piston; 17. Pull rod; 18. Connecting spring; 19. Sealing gasket; 20. Cleaning brush; 21. Slide rail; 22. Slider. Detailed Implementation

[0026] 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.

[0027] Example 1: As Figure 1 , Figure 2 , Figure 5 and Figure 6The technical solution shown addresses the problem that, during actual use, dust accumulates on the surface of the heat dissipation grille due to electrostatic adsorption after prolonged use, leading to dust blockage and affecting subsequent heat dissipation performance. This active cooling base station test shielding box discloses a cleaning and heat dissipation mechanism, including a shielding box body 1. A fixed base plate 4 is fixedly connected to the bottom of the shielding box body 1, and a placement plate 2 is fixedly connected to the middle position inside the shielding box body 1. Heat dissipation slots 3 are provided on both the left and right sides of the shielding box body 1, and a useful... The cleaning and heat dissipation mechanism includes a heat dissipation box 5, which is fixedly connected to the right side of the shielding box body 1. A fan 6 is installed on the right side inside the heat dissipation box 5, and the position of the fan 6 corresponds to the position of the heat dissipation trough 3. A motor 7 is provided at the upper end of the front end of the heat dissipation box 5, and the output end of the motor 7 extends into the interior of the heat dissipation box 5 and is equipped with a threaded rod 9. A movable block 10 is connected to the external thread of the threaded rod 9, and a cleaning brush 20 is installed on the left side of the movable block 10. The left side of the cleaning brush 20 is in contact with the right side of the heat dissipation trough 3.

[0028] In this example, the item to be tested is placed inside the shielding box body 1. The heat dissipation slots 3 on both sides of the shielding box body 1 can assist in heat dissipation. The fan 6 installed inside the heat dissipation box 5 can blow air into the shielding box body 1, thereby accelerating airflow and achieving auxiliary heat dissipation. The right side of the heat dissipation box 5 is a dust filter, which prevents dust from entering the interior of the shielding box body 1 while preventing dust from entering the interior of the heat dissipation box 5. The output end of the motor 7 can drive the threaded rod 9 to rotate. The threaded rod 9 is threadedly connected to the movable block 10, so that the movable block 10 synchronously drives the cleaning brush 20 to move on the surface of the heat dissipation slot 3. The cleaning brush 20 can clean the dust adsorbed by static electricity on the surface of the heat dissipation slot 3, reduce dust residue, and thus ensure better heat dissipation between the fan 6 and the heat dissipation slot 3.

[0029] Example 2: Figure 1 , Figure 2 and Figure 3The technical solution shown addresses the following problem: The shielding box for testing an active heat dissipation base station discloses an automatic dust removal mechanism. The bottom of the heat dissipation box 5 is equipped with an automatic dust removal mechanism that deflects the dust at an angle. The automatic dust removal mechanism includes a drive gear 8, which is fixedly connected to the outside of the output end of the motor 7. A rack 11 meshes with the side of the drive gear 8. A movable plate 12 is rotatably connected to the bottom of the heat dissipation box 5, and pressing plates 14 are installed at both the front and rear ends of the movable plate 12. The positions of the rack 11 and the pressing plates 14 correspond to each other. Both the front and rear ends of the movable plate 12 extend to the outside of the heat dissipation box 5 and are wound with torsion springs 13. The movable plate 12 and the heat dissipation box 5 form an elastic structure through the torsion springs 13. Slide rails 21 are provided at both the front and rear ends of the heat dissipation box 5, and sliders 22 matching the slide rails 21 are fixedly connected to the inner side of the rack 11. The rack 11 and the heat dissipation box 5 are slidably connected through the slide rails 21 and the sliders 22 to form a sliding mechanism.

[0030] In this example, when the output end of motor 7 rotates, it can synchronously drive the drive gear 8 to rotate. The drive gear 8 meshes with the rack 11, so that the rack 11 can be driven and move downward. When the rack 11 moves downward, it pushes the pressing plate 14 to move synchronously. The movable plate 12 is rotatably connected to the heat dissipation box 5, so that the angle of the movable plate 12 deflects. After the angle of the movable plate 12 deflects, the dust falling on the surface of the movable plate 12 will slide off due to the angle deflection. When motor 7 rotates in the opposite direction, the movable plate 12 will automatically reset synchronously through the elastic force of torsion spring 13, thereby realizing the closure of the movable plate 12. The up and down movement of rack 11 and the rotational connection of movable plate 12 stably realize the automatic discharge of dust, increasing the flexibility of use. In addition, during the up and down movement of rack 11, rack 11 can drive slider 22 to slide up and down inside slide rail 21, so that rack 11 can move more smoothly during the movement, increasing the overall stability during use.

[0031] Example 3: Figure 1 , Figure 2 and Figure 4 The technical solution shown addresses the following problem: The shielding box for testing an active heat dissipation base station discloses a positioning mechanism. Positioning mechanisms are installed at the four corners of the bottom of the fixed base plate 4. Each positioning mechanism includes a suction cup 15, which is fixedly connected to the four corners of the bottom of the fixed base plate 4. A piston 16 is slidably connected inside the suction cup 15, and a pull rod 17 is fixedly connected to the top of the piston 16. The top of the pull rod 17 passes through and extends to the top of the fixed base plate 4. A sealing gasket 19 is attached to the top of the fixed base plate 4 outside the pull rod 17. A connecting spring 18 is wound around the upper end of the outer side of the pull rod 17, and the pull rod 17 and the fixed base plate 4 form an elastic structure through the connecting spring 18.

[0032] In this example, by pressing the fixed base plate 4 downwards, the gas inside the suction cup 15 is expelled. Then, by pressing the pull rod 17, the pull rod 17 pushes the piston 16 downwards in sync. After the piston 16 moves to the lower end of the suction cup 15, pressing the suction cup 15 pushes the excess air from the suction cup to the upper end of the suction cup 15. The pull rod 17 returns to its original position, and the piston 16 blocks the upper end of the suction cup 15. At the same time, the return of the pull rod 17 compresses the air inside the suction cup 15, increasing the gas pressure. The increased gas pressure is squeezed out from the through holes at the four corners of the top of the fixed base plate 4. Simultaneously, the sealing gasket 19 moves upwards due to the gas compression. After the gas is expelled, the sealing gasket 19 automatically returns to its original position and seals the through hole by the elastic force of the connecting spring 18. The elastic force of the connecting spring 18 allows the sealing gasket 19 and the pull rod 17 to flexibly control their positions and return to their original positions as needed when moving up and down and returning to their original positions, increasing the overall flexibility during use.

[0033] 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. An active heat dissipation type shielding box for testing base stations, comprising a shielding box body (1), wherein a fixed base plate (4) is fixedly connected to the bottom end of the shielding box body (1), and a placement plate (2) is fixedly connected to the middle position inside the shielding box body (1). characterized in that The shielding box body (1) has heat dissipation slots (3) on both the left and right sides. A cleaning and heat dissipation mechanism for dissipating heat inside the shielding box body (1) and cleaning the heat dissipation slots (3) is installed on the right side of the shielding box body (1). The cleaning and heat dissipation mechanism includes a heat dissipation box (5), which is fixedly connected to the right side of the shielding box body (1). A fan (6) is installed on the right side inside the heat dissipation box (5), and the position of the fan (6) corresponds to the position of the heat dissipation slots (3). The bottom of the heat sink (5) is equipped with an automatic dust removal mechanism that deflects the dust to clean it.

2. The active heat dissipation type shielded box for base station testing according to claim 1, characterized in that: A motor (7) is provided at the upper end of the front end of the heat sink (5), and the output end of the motor (7) extends into the interior of the heat sink (5) and is equipped with a threaded rod (9). The threaded rod (9) is connected to a movable block (10) by external threads, and a cleaning brush (20) is installed on the left side of the movable block (10). The left side of the cleaning brush (20) is in contact with the right side of the heat sink (3).

3. The active heat dissipation type shielded box for base station testing according to claim 2, characterized in that: The automatic ash removal mechanism includes a drive gear (8), which is fixedly connected to the outside of the output end of the motor (7). A rack (11) meshes with the side of the drive gear (8). A movable plate (12) is rotatably connected to the bottom of the heat dissipation box (5). Pressing plates (14) are installed at both the front and rear ends of the movable plate (12). The position of the rack (11) corresponds to the position of the pressing plate (14).

4. The active heat dissipation type shielded box for base station testing according to claim 3, characterized in that: Both ends of the movable plate (12) extend to the outside of the heat sink (5) and are wound with torsion springs (13), and the movable plate (12) and the heat sink (5) form an elastic structure through the torsion springs (13).

5. The active heat dissipation type shielded box for base station testing according to claim 4, characterized in that: The heat sink (5) has slide rails (21) at both the front and rear ends, and a slider (22) matching the slide rail (21) is fixedly connected to the inner side of the rack (11). The rack (11) and the heat sink (5) are slidably connected through the slide rail (21) and the slider (22) to form a sliding mechanism.

6. The active heat dissipation type shielded box for base station testing according to claim 5, characterized in that: Positioning mechanisms are installed at the four corners of the bottom of the fixed base plate (4). The positioning mechanisms include suction cups (15) and the suction cups (15) are fixedly connected to the four corners of the bottom of the fixed base plate (4). A piston (16) is slidably connected inside the suction cups (15), and a pull rod (17) is fixedly connected to the top of the piston (16). The top of the pull rod (17) passes through and extends to the top of the fixed base plate (4). A sealing gasket (19) is attached to the top of the fixed base plate (4) outside the pull rod (17).

7. The active heat dissipation type shielded box for base station testing according to claim 6, characterized in that: A connecting spring (18) is wound around the upper end of the outer side of the pull rod (17), and the pull rod (17) and the fixed base plate (4) form an elastic structure through the connecting spring (18).

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