Power amplifier for shielding test
By adopting a combined structure of protective box and baffle in the power amplifier, the damage caused by equipment shaking during transportation is solved, and dust is prevented from entering through filters and sealing plates, effectively protecting the equipment and extending its service life.
Patent Information
- Application Number
- CN202421551398.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing power amplifiers are prone to vibrating and shaking during transportation, causing damage to the equipment, and when not in use, dust can easily enter the connection socket, affecting use.
A power amplifier for shielding tests is designed, using a combined structure of protective box and baffle to prevent equipment from colliding due to shaking during transportation, and to prevent dust from entering through filters and sealing plates.
It effectively prevents damage to the equipment due to shaking during transportation, and prevents dust from entering the connecting socket, extending the service life of the equipment and maintaining its normal operation.
Smart Images
Figure CN222928615U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of power amplifiers, and particularly relates to a power amplifier for shielding test. Background Art
[0002] The power amplifier in shielding test is a key device, which is mainly used to enhance the power of the input signal to meet the requirements of shielding test. In shielding test, in order to accurately evaluate the shielding effect of the object under test on the external electromagnetic field, an electromagnetic field with a certain intensity and frequency needs to be applied to it. The role of the power amplifier in this process is to amplify the low-power test signal to a sufficiently high power level, so as to generate an electromagnetic field that can effectively penetrate or act on the shielded body under test.
[0003] And the current power amplifier, by setting a positioning mechanism, the positioning rod plays a role in quickly fixing the top cover, avoiding the situation that the top cover shakes on the top of the power amplifier. By setting a transmission mechanism, the movable plate plays a role in quickly driving the two positioning rods to move through the connecting column and the extrusion block, avoiding the situation that the top cover cannot be detached from the fixed state when the top cover needs to be taken out. By setting a connecting block and a connecting groove, the docking of the connecting block and the connecting groove plays a role in preventing the top cover from shaking during the docking process of the top cover and the power amplifier. By setting a connecting hole and a positioning groove, the connecting hole plays a role in quickly docking the positioning rod with the positioning groove. By setting a movable hole, the movable hole avoids the situation that the transmission rod contacts the inner wall of the fixed block and generates friction when moving.
[0004] However, the current power amplifier will vibrate and shake during transportation, which is easy to damage the amplifier and affect its normal use. At the same time, when the power amplifier is not in use, dust is easy to adhere to the display or enter the inside of the connection socket, thus affecting the use of the connection socket.
[0005] Therefore, it is necessary to provide a power amplifier for shielding test to solve the above technical problems. Summary of the Utility Model
[0006] The utility model provides a power amplifier for shielding test, which solves the problems that the current power amplifier will vibrate and shake during transportation, is easy to damage the amplifier, and dust will enter the inside of the connection socket when not in use.
[0007] To solve the above technical problems, a power amplifier for shielding test provided by the utility model includes:
[0008] A protective box, with a body disposed inside the protective box. There is an installation groove inside the protective box, and a magnet is fixedly connected inside the installation groove. A plurality of filter elements are arranged inside the protective box, and a storage groove is formed inside the protective box;
[0009] Two sliding grooves, both of which are arranged inside the protective box. Sliding blocks are slidably connected inside both of the two sliding grooves. A moving frame is fixedly connected to one side of both of the two sliding blocks. A rotating rod is rotatably connected to one side of the moving frame. A connecting block is fixedly connected to the top of the rotating rod. A baffle is fixedly connected to the top of the connecting block, and a concave handle is formed inside the baffle.
[0010] Preferably, both of the two sliding grooves are formed inside the protective box and are respectively arranged on both sides of the storage groove.
[0011] Preferably, both ends of the rotating rod are rotatably connected to both sides of the two moving frames respectively. The top of the connecting block is fixedly connected to the bottom of the baffle and the bottom is fixedly connected to the top of the rotating rod.
[0012] Preferably, a plurality of reset grooves are formed inside the protective box, and reset blocks are slidably connected inside the plurality of reset grooves.
[0013] Preferably, a reset spring is arranged on the top of the reset block, and a sealing plate is fixedly connected to one side of the reset block.
[0014] Preferably, a connecting rod is fixedly connected to the top of the sealing plate, and two moving blocks are fixedly connected to the bottom of the sealing plate.
[0015] Preferably, a moving frame is slidably connected inside the sliding groove, and a plurality of moving grooves are formed inside the moving frame.
[0016] Compared with the related art, a power amplifier for shielding test provided by the present utility model has the following beneficial effects:
[0017] The present utility model provides a power amplifier for shielding test. Through the cooperation of the protective box and the baffle, the body is protected, so as to prevent the body from colliding with other objects due to shaking during transportation. While protecting the body, the baffle can prevent dust from entering the inside of the connection socket inside the body. At the same time, through a plurality of filter elements, the air enters the inside of the body and then is discharged from the other side, thereby dissipating heat from the inside of the body. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic structural diagram of the first embodiment of a power amplifier for shielding test provided by the present utility model;
[0019] Figure 2 is Figure 1 a schematic structural view of the protective box shown;
[0020] Figure 3 is Figure 2 a schematic structural view of the rotating rod shown;
[0021] Figure 4 is Figure 3 a schematic enlarged view of part A shown;
[0022] Figure 5 is Figure 2 a schematic enlarged view of part B shown;
[0023] Figure 6 is a schematic structural view of the second embodiment of a power amplifier for shielding test provided by the present utility model;
[0024] Figure 7 is Figure 6 a schematic enlarged view of part C shown.
[0025] Reference numerals in the figure: 1, protective box; 2, body; 3, installation groove; 4, magnet; 5, sliding groove; 6, sliding block; 7, moving frame; 8, rotating rod; 9, connecting block; 10, baffle; 11, concave handle; 12, filter element; 13, storage groove; 14, reset groove; 15, reset block; 16, reset spring; 17, sealing plate; 18, moving groove; 19, moving block; 20, moving frame. Specific embodiments
[0026] The present utility model will be further described below with reference to the accompanying drawings and embodiments.
[0027] First embodiment
[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein, Figure 1 is a schematic structural view of the first embodiment of a power amplifier for shielding test provided by the present utility model; Figure 2 is Figure 1 a schematic structural view of the protective box shown; Figure 3 is Figure 2 a schematic structural view of the rotating rod shown; Figure 4 is Figure 3 a schematic enlarged view of part A shown; Figure 5 is Figure 2 a schematic enlarged view of part B shown. A power amplifier for shielding test includes:
[0029] Protective box 1, inside which there is a body 2. Inside the protective box 1, there is an installation groove 3. Inside the installation groove 3, a magnet 4 is fixedly connected. Inside the protective box 1, multiple filter elements 12 are provided. Inside the protective box 1, a storage groove 13 is formed.
[0030] Two sliding grooves 5 are both arranged inside the protective box 1. Inside both of the two sliding grooves 2, a sliding block 6 is slidably connected. On one side of each of the two sliding blocks 6, a moving frame 7 is fixedly connected. On one side of the moving frame 7, a rotating rod 8 is rotatably connected. On the top of the rotating rod 8, a connecting block 9 is fixedly connected. On the top of the connecting block 9, a baffle 10 is fixedly connected. Inside the baffle 10, a concave handle 11 is formed.
[0031] The concave handle 11 is used to facilitate the rotation of the baffle 10. The body 2 is a power amplifier.
[0032] Installation grooves 3 are formed both inside the baffle 10 and the protective box 1. Inside both of the two installation grooves 3, a magnet 4 is fixedly connected. When the baffle 10 protects the body 2, after the magnet 4 inside the baffle 10 adsorbs with the magnet inside the protective box 1, it limits the position between the baffle 10 and the protective box 1.
[0033] The filter element 12 can be a dust-proof net or a filter screen. Multiple filter elements 12 are fixedly installed on both sides of the protective box 1. Inside the body 2, a heat dissipation groove with the same size as the filter element 12 is formed. It is used for the air to enter the inside of the body 2 from one side and then discharge from the other side for heat dissipation. At the same time, the air entering the body 2 through the multiple filter elements 12 is filtered by the filter elements 12 to prevent dust from entering the inside of the body 2.
[0034] Both of the two sliding grooves 5 are formed inside the protective box 1 and are respectively arranged on both sides of the storage groove 13.
[0035] Both ends of the rotating rod 8 are respectively rotatably connected to both sides of the two moving frames 7. The top of the connecting block 9 is fixedly connected to the bottom of the baffle 10 and is fixedly connected to the top of the rotating rod 8 at the bottom.
[0036] The working principle of a power amplifier for shielding test provided by the present utility model is as follows:
[0037] During use, by rotating the baffle 10 to one side, the rotating rod 8 is driven to rotate to one side. When the baffle 10 rotates to a suitable position to one side, push the baffle 10 to move to one side, driving the two sliding blocks 6 to move to one side respectively inside the two sliding grooves 5. When the baffle 10 is placed at a suitable position inside the storage groove 13, it is okay.
[0038] When the baffle 10 is taken out from the inside of the storage groove 13 and rotated to one side to a proper position, the magnets 4 inside the baffle 10 and the magnets inside the protective box 1 are adsorbed to each other, so as to limit the position between the baffle 10 and the protective box 1.
[0039] Compared with the related art, a power amplifier for shielding test provided by the present utility model has the following beneficial effects:
[0040] The present utility model provides a power amplifier for shielding test. The protective box 1 cooperates with the baffle 10 to protect the body 2, so as to prevent the body 2 from colliding with other objects due to shaking during transportation. While protecting the body 2, the baffle 10 can prevent dust from entering the inside of the connection socket inside the body 2.
[0041] Second Embodiment
[0042] Please refer to Figure 6 and Figure 7 Based on a power amplifier for shielding test provided in the first embodiment of the present application, a second embodiment of the present application proposes another power amplifier for shielding test. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.
[0043] Specifically, the difference of a power amplifier for shielding test provided in the second embodiment of the present application is that, for a power amplifier for shielding test, a plurality of reset grooves 14 are formed inside the protective box 1, and a reset block 15 is slidably connected inside each of the plurality of reset grooves 14.
[0044] A reset spring 16 is arranged on the top of the reset block 15, and a sealing plate 17 is fixedly connected to one side of the reset block 15.
[0045] Reset springs 16 are arranged on the tops of the plurality of reset blocks 15 and inside the plurality of reset grooves 14.
[0046] A connecting rod is fixedly connected to the top of the sealing plate 17, and two moving blocks 19 are fixedly connected to the bottom of the sealing plate 17.
[0047] A plurality of sealing plates 17 are slidably connected inside the protective box 1. The plurality of sealing plates 17 are connected by a plurality of connecting rods, and at the same time, both ends of the plurality of sealing plates 17 are fixedly connected to one side of the plurality of reset blocks 15 respectively.
[0048] Two moving blocks 19 are fixedly connected to the bottoms of the two lowermost sealing plates 17 among the plurality of sealing plates 17 on both sides of the protective box 1.
[0049] A moving frame 20 is slidably connected inside the sliding groove 5, and a plurality of moving grooves 18 are formed inside the moving frame 20.
[0050] The plurality of moving grooves 18 are all arc grooves, and the plurality of moving blocks 19 are all arc-shaped blocks adapted to the plurality of moving grooves 18, and are used for the moving blocks 19 to move to one side inside the moving grooves 18 when the moving frame 20 moves to one side.
[0051] The working principle of a power amplifier for shielding test provided by the present utility model is as follows:
[0052] During use, when the two sliding blocks 6 move and reset to one side, they drive the moving frame 20 to move to one side, so that the plurality of moving blocks 19 move upward inside the plurality of moving grooves 18. When the plurality of moving blocks 10 move upward, they drive the two lowermost sealing plates 17 to move upward, and at the same time drive the other sealing plates 17 to move upward through a plurality of connecting rods, thereby driving the plurality of reset blocks 15 to move upward inside the plurality of reset grooves 14 while squeezing the plurality of reset springs 16. When the sliding blocks 6 move to a suitable position, the plurality of moving blocks 19 are separated from the plurality of moving grooves 18, and at the same time, the plurality of sealing plates 17 seal the plurality of filter elements 12.
[0053] When the baffle 10 moves into the storage groove 13 and moves to one side, driving the two sliding blocks 6 to move to one side, while the moving frame 20 moves to one side, the plurality of reset springs 16 push the plurality of reset blocks 15 connected to the plurality of sealing plates 17 to move downward, so that the plurality of moving blocks 19 can enter the plurality of moving grooves 18.
[0054] Compared with the related art, a power amplifier for shielding test provided by the present utility model has the following beneficial effects:
[0055] The present utility model provides a power amplifier for shielding test. When the sliding block 6 moves to one side and resets, it drives the moving frame 20 to move to one side, so that the plurality of sliding blocks 6 move out of the plurality of sliding grooves 5, and the plurality of sealing plates 17 cooperate with the plurality of connecting rods to move upward to seal the plurality of filter elements 12. Thus, when the main body 2 is not in use, the plurality of sealing plates 17 seal the plurality of filter elements 12 to prevent moisture from entering the inside of the main body 2.
[0056] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.
Claims
1. A power amplifier for shielding testing, characterized in that: include: A protective box, wherein a body is arranged inside the protective box, a mounting groove is arranged inside the protective box, a magnet is fixedly connected inside the mounting groove, a plurality of filters are arranged inside the protective box, and a storage groove is opened inside the protective box; Two sliding grooves, both of which are arranged inside the protective box, both of which are slidably connected to sliding blocks, one side of each of which is fixedly connected to a moving frame, one side of the moving frame is rotatably connected to a rotating rod, the top of the rotating rod is fixedly connected to a connecting block, the top of the connecting block is fixedly connected to a baffle, and a concave handle is provided inside the baffle.
2. A power amplifier for shielding testing according to claim 1, characterized in that: The two sliding grooves are both opened inside the protection box and are respectively arranged on both sides of the storage groove.
3. A power amplifier for shielding testing according to claim 1, characterized in that: The two ends of the rotating rod are respectively rotatably connected to the two sides of the two moving frames, the top of the connecting block is fixedly connected to the bottom of the baffle, and the bottom is fixedly connected to the top of the rotating rod.
4. A power amplifier for shielding testing according to claim 2, characterized in that: A plurality of reset grooves are provided inside the protection box, and reset blocks are slidably connected inside the plurality of reset grooves.
5. A power amplifier for shielding testing according to claim 4, characterized in that: A reset spring is arranged on the top of the reset block, and a sealing plate is fixedly connected to one side of the reset block.
6. A power amplifier for shielding testing according to claim 5, characterized in that: The top of the sealing plate is fixedly connected with a connecting rod, and the bottom of the sealing plate is fixedly connected with two moving blocks.
7. A power amplifier for shielding testing according to claim 2, characterized in that: The interior of the sliding groove is slidably connected with a moving frame, and the interior of the moving frame is provided with a plurality of moving grooves.