Anechoic chamber capable of improving wave absorption rate

Abstract

The utility model discloses an anechoic chamber capable of improving the wave absorption rate, which comprises a anechoic chamber floor, a anechoic chamber wall body built on the anechoic chamber floor, a wave absorption block arranged in the anechoic chamber wall body, a movable plate arranged in the anechoic chamber floor, and a mounting block arranged on the inner side of the movable plate, the mounting block is fixed on a darkroom floor through bolts, a first motor is mounted in the mounting block, a transverse adjusting rod is fixed at the output end of the first motor, and a mounting frame is mounted outside the transverse adjusting rod; and the vertical adjusting rod penetrates through the interior of the mounting frame, a second motor is connected to the upper end of the vertical adjusting rod, a bearing block is embedded in the outer side of the vertical adjusting rod, and a placement table is arranged at the other end of the transverse adjusting rod. According to the anechoic chamber capable of improving the wave absorption rate, the wave absorption rate is improved, the accuracy of a measurement result is ensured, meanwhile, the position of the measurement antenna is conveniently adjusted, and the use is flexible.

Description

Technical Field

[0001] The utility model relates to the technical field related to radio wave darkrooms, in particular to a radio wave darkroom with improved wave absorption rate. Background Art

[0002] Anechoic chamber is a closed shielded room mainly used to simulate open fields and to measure radiated radio interference (EMI) and radiated sensitivity (EMS). Anechoic chambers vary according to different measurement requirements, such as:

[0003] The utility model with announcement number CN219609079U discloses a radio wave darkroom with adjustment function, which relates to the technical field of radio wave darkroom, including a radio wave darkroom body, an inner wall of the radio wave darkroom body is attached with absorbing material, the inner side wall of the radio wave darkroom body is symmetrically provided with rectangular boxes, a moving component is provided between the two rectangular boxes, and the moving component includes two mutually symmetrical slides, the two slides move synchronously toward or away from each other, a winding roller is provided on one side of the slide, a shielding cloth is wound on the winding roller, the end of the shielding cloth is fixedly connected to the side of the slide, springs are symmetrically wound on both sides of the winding roller, a first U-shaped frame is further provided on one side of the winding roller, a reciprocating T-shaped plate is provided inside the first U-shaped frame, and a guide roller is provided inside the T-shaped plate; the utility model drives the shielding cloth to move by the synchronous movement of the slides toward or away from each other, and flexibly adjusts the size of the absorbing area between the slides, so as to facilitate the test of instruments of different sizes, and the operation is simple and efficient;

[0004] Most of the current anechoic chambers still have some defects, such as poor absorption, which affects the overall measurement results, and it is inconvenient to adjust the position of the measurement antenna, which is not flexible enough to use. Therefore, the utility model provides an anechoic chamber with improved absorption to solve the above problems. Summary of the invention

[0005] The purpose of the utility model is to provide an anechoic chamber with improved absorption rate, so as to solve the problems mentioned in the above background technology that the absorption rate is poor, affecting the overall measurement result, and it is inconvenient to adjust the position of the measurement antenna and the use is not flexible enough.

[0006] To achieve the above object, the utility model provides the following technical solution: an anechoic chamber with improved wave absorption rate, comprising a anechoic chamber floor, a anechoic chamber wall built on the anechoic chamber floor, and wave absorbing blocks arranged inside the anechoic chamber wall, and also comprising:

[0007] A movable plate is arranged inside the darkroom floor, a third motor for driving is installed at the end of the movable plate, connecting protrusions are integrally arranged on the surfaces of the movable plate and the darkroom wall, and a mounting plate is installed at the outer end of the connecting protrusion;

[0008] A mounting block is arranged on the inner side of the movable plate, the mounting block is fixed to the darkroom floor by bolts, a first motor is installed inside the mounting block, a lateral adjustment rod is fixed to the output end of the first motor, and a mounting frame is installed outside the lateral adjustment rod;

[0009] A vertical adjustment rod runs through the interior of the mounting frame, the upper end of the vertical adjustment rod is connected to a second motor, a bearing block is nested on the outer side of the vertical adjustment rod, and a measuring antenna is fixedly installed on the surface of the bearing block by bolts, and a placement table is provided at the other end of the lateral adjustment rod.

[0010] Preferably, a storage cavity for installing a movable panel is provided on the surface of the darkroom floor, and the storage cavity is symmetrically arranged front to back with respect to the transverse adjustment rod.

[0011] Preferably, the absorbing blocks are distributed in an array on the mounting plate, and the mounting plate and the connecting protrusions are snap-fitted and connected, and the absorbing blocks are evenly distributed in the darkroom wall.

[0012] Preferably, the connection between the mounting frame and the lateral adjustment rod is a threaded connection, and a supporting wheel that is arranged to fit the upper surface of the darkroom floor is installed at the bottom of the mounting frame.

[0013] Preferably, the bearing block and the vertical adjustment rod are connected by threads, and the bearing block and the mounting frame are connected by snap-fitting.

[0014] Preferably, the movable plate is connected to the darkroom floor in a rotational manner, and the upper surface of the movable plate is flush with the upper surface of the darkroom floor.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the anechoic chamber with improved wave absorption rate improves the wave absorption rate, ensures the accuracy of the measurement result, and is convenient for adjusting the position of the measurement antenna, and is flexible to use;

[0016] Through the rotation connection between the movable plate and the darkroom floor, the absorbing block in the storage cavity is rotated to the top of the darkroom floor during measurement, and the layout of the absorbing block is greatly improved in coordination with the absorbing block in the darkroom wall, which can effectively increase the absorption rate and improve the accuracy of the measurement results;

[0017] The threaded connection between the bearing block and the vertical adjustment rod facilitates the adjustment of the height position of the measuring antenna. At the same time, the threaded connection between the horizontal adjustment rod and the mounting bracket can adjust the distance between the measuring antenna and the placement table, which is flexible to use.

[0018] The threaded connection between the connecting protrusion and the mounting plate facilitates the disassembly of the local absorbing block, thereby facilitating the repair and replacement of the damaged absorbing block, with simple operation and low repair cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the mounting frame and the lateral adjustment rod connected to the utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the connection between the movable plate and the darkroom floor of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the absorbing block of the utility model in use state;

[0023] Figure 5 This is a schematic diagram of the overall structure of the connection between the absorbing block and the mounting plate of the utility model.

[0024] In the figure: 1. darkroom floor; 2. darkroom wall; 3. movable plate; 4. mounting block; 5. first motor; 6. mounting frame; 7. second motor; 8. vertical adjustment rod; 9. bearing block; 10. measuring antenna; 11. supporting wheel; 12. horizontal adjustment rod; 13. placing table; 14. third motor; 15. storage cavity; 16. connecting protrusion; 17. mounting plate; 18. absorbing block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model provides a technical solution: a radio wave darkroom for improving the wave absorption rate, comprising a darkroom floor 1, a darkroom wall 2, a movable plate 3, a mounting block 4, a first motor 5, a mounting frame 6, a second motor 7, a vertical adjustment rod 8, a bearing block 9, a measuring antenna 10, a support wheel 11, a lateral adjustment rod 12, a placement table 13, a third motor 14, a storage cavity 15, a connecting protrusion 16, a mounting plate 17 and an absorbing block 18, comprising a darkroom floor 1, a darkroom wall 2 built on the darkroom floor 1, and an absorbing block 18 arranged inside the darkroom wall 2, characterized in that it also includes: a movable plate 3, which is arranged inside the darkroom floor 1, a third motor 14 for driving is installed at the end of the movable plate 3, the surfaces of the movable plate 3 and the darkroom wall 2 are both integrally provided with connecting protrusions 16, and the outer end of the connecting protrusion 16 is installed with a mounting plate 17;

[0027] A mounting block 4 is arranged on the inner side of the movable plate 3, and the mounting block 4 is fixed to the darkroom floor 1 by bolts. A first motor 5 is installed inside the mounting block 4, and a lateral adjustment rod 12 is fixed to the output end of the first motor 5, and a mounting frame 6 is installed outside the lateral adjustment rod 12; a vertical adjustment rod 8 runs through the inside of the mounting frame 6, and a second motor 7 is connected to the upper end of the vertical adjustment rod 8, and a bearing block 9 is nested on the outer side of the vertical adjustment rod 8, and a measuring antenna 10 is fixedly installed on the surface of the bearing block 9 by bolts, and a placing table 13 is provided at the other end of the lateral adjustment rod 12, and the connection between the mounting frame 6 and the lateral adjustment rod 12 is a threaded connection, and a support wheel 11 is installed at the bottom of the mounting frame 6 to fit the upper surface of the darkroom floor 1, so as to ensure the stability of the movement of the mounting frame 6;

[0028] like Figure 2 As shown, firstly, the object to be measured is placed on the placement table 13, and then the first motor 5 is rotated to drive the lateral adjustment rod 12 threadedly connected to the mounting frame 6 to rotate, so that the horizontal distance between the measuring antenna 10 and the placement table 13 can be adjusted, and then the second motor 7 is used to drive the vertical adjustment rod 8 to rotate, and the vertical adjustment rod 8 is threadedly connected to the bearing block 9, and the bearing block 9 is engaged with the inside of the mounting frame 6, so that the height of the measuring antenna 10 can be adjusted, that is, the position of the measuring antenna 10 can be adjusted according to the demand;

[0029] like Figure 3 and Figure 4 As shown, the third motor 14 is then used to drive the movable plate 3 to rotate 180°, so that the absorbing block 18 located in the storage cavity 15 is rotated to the top of the darkroom floor 1, which can greatly improve the layout of the indoor absorbing block 18, thereby improving the overall absorption rate. After the measurement is completed, the absorbing block 18 on the movable plate 3 is rotated into the storage cavity 15, which can effectively protect it and also avoid affecting the movement of the staff; Figure 5 As shown, the mounting plate 17 and the connecting protrusion 16 are connected by a snap-fitting manner, which is convenient for disassembly and installation, so that the locally damaged absorbing block 18 can be replaced and repaired, and the operation is convenient.

[0030] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A radio wave darkroom with improved wave absorption rate, comprising a darkroom floor (1), a darkroom wall (2) built on the darkroom floor (1), and a wave absorbing block (18) arranged inside the darkroom wall (2), characterized in that: Also includes: A movable plate (3) is arranged inside the darkroom floor (1), a third motor (14) for driving is installed at the end of the movable plate (3), connecting protrusions (16) are integrally provided on the surfaces of the movable plate (3) and the darkroom wall (2), and a mounting plate (17) is installed at the outer end of the connecting protrusion (16); A mounting block (4) is arranged on the inner side of the movable plate (3), the mounting block (4) being fixed to the darkroom floor (1) by means of bolts, a first motor (5) being installed inside the mounting block (4), a lateral adjustment rod (12) being fixed to the output end of the first motor (5), and a mounting frame (6) being installed outside the lateral adjustment rod (12); A vertical adjustment rod (8) is inserted into the interior of the mounting frame (6); the upper end of the vertical adjustment rod (8) is connected to a second motor (7); a bearing block (9) is embedded on the outer side of the vertical adjustment rod (8); a measuring antenna (10) is fixedly mounted on the surface of the bearing block (9) by means of bolts; and a placement table (13) is provided at the other end of the lateral adjustment rod (12).

2. The anechoic chamber for improving wave absorption rate according to claim 1, characterized in that: The surface of the darkroom floor (1) is provided with a storage cavity (15) for installing a movable panel (3), and the storage cavity (15) is arranged symmetrically front and back with respect to the transverse adjustment rod (12).

3. The anechoic chamber for improving wave absorption rate according to claim 1, characterized in that: The absorbing blocks (18) are distributed in an array on the mounting plate (17), the mounting plate (17) and the connecting protrusions (16) are snap-fitted and connected, and the absorbing blocks (18) are evenly distributed in the darkroom wall (2).

4. The anechoic chamber for improving wave absorption rate according to claim 1, characterized in that: The connection between the mounting frame (6) and the lateral adjustment rod (12) is threaded, and a support wheel (11) is mounted at the bottom of the mounting frame (6) and is arranged to fit the upper surface of the darkroom floor (1).

5. The anechoic chamber for improving wave absorption rate according to claim 1, characterized in that: The bearing block (9) and the vertical adjustment rod (8) are connected by threads, and the bearing block (9) and the mounting frame (6) are connected by snap-fitting.

6. The anechoic chamber for improving wave absorption rate according to claim 1, characterized in that: The movable plate (3) is connected to the darkroom floor (1) in a rotational manner, and the upper surface of the movable plate (3) is arranged flush with the upper surface of the darkroom floor (1).

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