Broadband white noise amplification device

Abstract

The utility model relates to the technical field of broadband white noise, and discloses a broadband white noise amplifying device which comprises an amplifier body and further comprises a shielding shell arranged on the outer side of the amplifier body, and a clamping cover used for sealing the shielding shell is arranged on the outer side of the shielding shell. According to the utility model, the amplifier main body is sealed inside by the shielding case consisting of the shielding shell and the clamping cover, and the shielding shell is made of materials capable of shielding electromagnetic waves, such as aluminum or copper. Aluminum or copper is excellent in electromagnetic shielding performance and excellent in conductivity, an efficient electromagnetic shielding layer can be formed, leakage and interference of electromagnetic waves are reduced, and the working stability of the amplifier body is improved. The conductive particles (such as silver-plated glass and silver-plated aluminum) are uniformly distributed in the silicone rubber to prepare the conductive rubber, and the conductive rubber can show good conductivity and electromagnetic shielding performance under certain pressure intensity, so that the influence of external electromagnetic interference (EMI) and radio frequency interference (RFI) on the amplifier is reduced.

Description

Technical Field

[0001] This utility model relates to the field of broadband white noise technology, specifically a broadband white noise amplification device. Background Technology

[0002] A broadband noise source amplifier is an electronic device specifically designed to amplify the noise component of a signal over a wide frequency range. Its core functions include amplifying the noise signal, optimizing bandwidth control, and improving the system signal-to-noise ratio. These amplifiers play a crucial role in communication systems, precision measurement, and radio frequency receivers.

[0003] Broadband noise source amplifiers are susceptible to external electromagnetic interference (EMI) and radio frequency interference (RFI) during use. EMI or RFI can couple into the circuit through the op-amp's input pins, generating additional noise and affecting the performance of the broadband noise source amplifier. Utility Model Content

[0004] The purpose of this invention is to provide a broadband white noise amplification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a broadband white noise amplification device, comprising an amplifier body, and further comprising:

[0006] A shielding shell is disposed on the outside of the amplifier body. The outside of the shielding shell is provided with a cover to close the shielding shell. The outside of the cover is provided with a snap-fit ​​assembly to connect it to the shielding shell.

[0007] A rubber layer is fixedly connected inside the shielding shell, and a heat sink is provided on the rubber layer to dissipate heat from the amplifier body.

[0008] Preferably, the shielding shell is made of aluminum.

[0009] Preferably, the interior of the rubber layer contains uniformly distributed glass-plated silver conductive particles.

[0010] Preferably, the heat sink penetrates the shielding shell and the rubber layer, and heat sink fins are fixedly connected to its outer side.

[0011] Preferably, the snap-fit ​​assembly includes a snap rod rotatably connected to the outside of the snap cover, a fixing block is fixedly connected to the outside of the shielding shell, and a snap-fit ​​groove is formed inside the fixing block.

[0012] Preferably, the card cover has a through slot inside for connecting wires and the amplifier body.

[0013] Preferably, a rubber sealing gasket is fixedly connected to the inner side of the card cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes a shielding shell and a cover to enclose the amplifier body internally. The shielding shell is made of materials such as aluminum or copper that can shield electromagnetic waves. Aluminum or copper performs exceptionally well in electromagnetic shielding, exhibiting excellent conductivity and forming a highly efficient electromagnetic shielding layer, reducing electromagnetic wave leakage and interference, and improving the operational stability of the amplifier body. The amplifier is made by uniformly distributing conductive particles (such as silver-plated glass or silver-plated aluminum) within silicone rubber. Under certain pressure, the conductive rubber exhibits good conductivity and electromagnetic shielding performance, reducing the impact of external electromagnetic interference (EMI) and radio frequency interference (RFI) on the amplifier. Attached Figure Description

[0016] Figure 1 A schematic diagram of the broadband white noise amplification device provided by this utility model;

[0017] Figure 2 A schematic diagram of the shielding shell structure provided by this utility model;

[0018] Figure 3 A schematic diagram of the internal structure of the shielding shell provided by this utility model;

[0019] Figure 4 A schematic diagram of the card cover structure provided by this utility model;

[0020] Figure 5 Another perspective view of the card cover provided by this utility model;

[0021] Figure 6 A schematic diagram of the fixing block structure provided by this utility model.

[0022] In the diagram: 1. Amplifier body; 2. Shielding shell; 3. Cover; 4. Rubber layer; 5. Heat sink; 6. Heat sink fins; 7. Snap-fit ​​assembly; 701. Clip rod; 702. Fixing block; 703. Slot; 8. Through slot; 9. Rubber sealing gasket. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6As shown, a broadband white noise amplification device includes an amplifier body 1 and a shielding shell 2. The shielding shell 2 is hollow inside, and its size is adapted to the corresponding specifications of the amplifier. The amplifier body 1 can be installed inside it. The shielding shell 2 is located on the outside of the amplifier body 1. The shielding shell 2 is provided with a cover 3 on the outside of the shielding shell 2. The cover 3 is made of the same material as the shielding shell 2 and surrounds the amplifier body 1 to form a complete shielding space. The cover 3 is provided with a snap-fit ​​assembly 7 on the outside of the cover 3 to connect it to the shielding shell 2. The snap-fit ​​assembly 7 is used to detachably install the cover 3 on the shielding shell 2, so as to facilitate the removal of the amplifier body 1. A rubber layer 4 is fixedly connected to the inside of the shielding shell 2. A heat dissipation plate 5 is provided on the rubber layer 4 to dissipate heat from the amplifier body 1. The rubber layer 4 can isolate the shielding shell 2 and the amplifier body 1 and provide protection for the amplifier body 1. The heat dissipation plate 5 can dissipate the heat generated inside the shielding shell 2 and the amplifier body 1 during operation.

[0025] It should be noted that the shielding cover consisting of the shielding shell 2 and the card cover 3 protects the amplifier body 1 inside, which can effectively block the penetration of high-frequency electromagnetic waves and improve the stability and reliability of the broadband white noise amplifier.

[0026] The shielding shell 2 is made of materials such as aluminum or copper that can shield electromagnetic waves. Aluminum or copper perform well in electromagnetic shielding, with excellent conductivity, and can form a highly efficient electromagnetic shielding layer, reducing electromagnetic wave leakage and interference, and improving the working stability of the amplifier body 1.

[0027] The interior of rubber layer 4 contains uniformly distributed conductive particles such as glass-plated silver and aluminum-plated silver. By uniformly distributing conductive particles within silicone rubber, the conductive rubber exhibits excellent conductivity and electromagnetic shielding performance under certain pressure.

[0028] The heat sink 5 penetrates the shielding shell 2 and the rubber layer 4, and is fixedly connected to the outer side with heat dissipation fins 6. The heat sink 5 can be made of graphene material, and its inner side contacts the amplifier body 1 in the shielding shell 2. It absorbs the heat generated by the amplifier body 1 during operation and transfers the heat to the heat dissipation fins 6 through the heat sink 5. The fins are made of aluminum or copper, and the high thermal conductivity of the fin material ensures that the heat is quickly diffused to the entire fin surface. The heat on the fin surface is transferred to the air through convection with the surrounding air. The airflow (natural convection or forced convection) carries away the heat, reduces the fin temperature, and thus dissipates the heat generated by the amplifier body 1 during operation, preventing the amplifier body 1 from being damaged due to the heat not being dissipated while operating in the shielding shell 2.

[0029] The snap-fit ​​assembly 7 includes a snap-fit ​​rod 701 rotatably connected to the outside of the snap-fit ​​cover 3, and a fixing block 702 fixedly connected to the outside of the shielding shell 2. The fixing block 702 has a snap-fit ​​groove 703 inside. The snap-fit ​​rod 701 is C-shaped, with one end of its opening rotatably connected to the snap-fit ​​cover 3. When the snap-fit ​​rod 701 is flipped toward the shielding shell 2, the fixing block 702... Figure 6 One side is curved, and the lever 701 is made of metal and has a certain degree of elasticity. Therefore, during the pressing process, the lever 701 will deform under force and engage with the slot 703 inside the fixing block 702, thereby connecting the cover 3 to the shielding shell 2 and sealing the shielding shell 2. To open the shielding shell 2, simply insert the lever 701 as shown. Figure 5 In the indicated state, pull counterclockwise to separate it from the slot 703 using the elasticity of the lever 701.

[0030] The inside of the cover 3 is provided with a through groove 8 for connecting wires and the amplifier body 1; a rubber sealing gasket 9 is fixedly connected to the inside of the cover 3. The size of the through groove 8 is opened according to the existing specifications of the connector. The connector can pass through the through groove 8 and be inserted into the connector on the amplifier body 1. When the cover 3 and the shielding shell 2 are engaged, the rubber sealing gasket 9 is located between the shielding shell 2 and the cover 3, which can improve the sealing between the cover 3 and the shielding shell 2 and prevent dust and other pollutants from entering the interior of the shielding shell 2 and causing pollution.

[0031] Working Principle: The amplifier body 1 is enclosed within a shielding enclosure consisting of a shielding shell 2 and a cover 3. The shielding shell 2 is made of materials such as aluminum or copper, which can shield electromagnetic waves. Aluminum or copper performs well in electromagnetic shielding, exhibiting excellent conductivity and forming a highly efficient electromagnetic shielding layer, reducing electromagnetic wave leakage and interference, and improving the operational stability of the amplifier body 1. Conductive particles (such as silver-plated glass or silver-plated aluminum) are evenly distributed within silicone rubber. This conductive rubber exhibits good conductivity and electromagnetic shielding performance under certain pressure. Heat is transferred to the heat dissipation fins 6 via a heat sink 5. The fins are made of aluminum or copper, and the high thermal conductivity of the fin material ensures rapid heat diffusion across the entire fin surface. The heat on the fin surface is then transferred to the air through convection with the surrounding air. Airflow (natural or forced convection) carries away the heat, lowering the fin temperature and dissipating the heat generated by the amplifier body 1 during operation. This prevents damage to the amplifier body 1 caused by undissipated heat within the shielding shell 2. The amplifier body 1 in this application uses a Zener high-voltage noise diode with reverse breakdown, and is a low-noise broadband flat amplifier with multi-stage tuning, outputting a broadband white noise RF signal with a power of approximately -2dBm. The actual noise spectrum exhibits good flatness below 2.6GHz, with slight fluctuations between 2.6GHz and 3GHz.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[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. A broadband white noise amplification device comprising an amplifier body (1), characterized in that, Also include: Shielding shell (2) is arranged outside the amplifier body (1), the outside of the shielding shell (2) is provided with the cover (3) that closes shielding shell (2), the outside of the cover (3) is provided with the clamping assembly (7) that is connected with shielding shell (2); Rubber layer (4) is fixedly connected inside the shielding shell (2), the rubber layer (4) is provided with the heat dissipation plate (5) that is treated to the heat dissipation of amplifier body (1).

2. A wideband white noise amplification device as claimed in claim 1, characterized in that: The shielding shell (2) is made of aluminum material.

3. A broadband white noise amplification device as claimed in claim 1, characterized in that: The inside of the rubber layer (4) is uniformly distributed with glass silver-coated conductive particles.

4. A broadband white noise amplification device as claimed in claim 1, characterized in that: The heat dissipation plate (5) penetrates the shielding shell (2) and the rubber layer (4), and the outside is fixedly connected with the heat dissipation fin (6).

5. A broadband white noise amplification device as claimed in claim 1, characterized in that: The clamping assembly (7) includes the clamping rod (701) rotatably connected to the outside of the cover (3), the outside of the shielding shell (2) is fixedly connected with the fixed block (702), and the inside of the fixed block (702) is provided with the clamping groove (703).

6. A broadband white noise amplification device as claimed in claim 1, characterized in that: The inside of the cover (3) is provided with the through slot (8) for connecting lines and the like to be connected with the amplifier body (1).

7. A broadband white noise amplification device as claimed in claim 1, characterized in that: The inside of the cover (3) is fixedly connected with the rubber sealing gasket (9).

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