Broadband self-bias driving amplifier

Abstract

The utility model relates to the technical field of drive amplifier devices, in particular to a broadband self-bias drive amplifier which comprises a box body, an interface is arranged on the outer side of the box body, a groove body is arranged on the side face of the top end of the box body towards the bottom end, a clamping frame is arranged in the groove body, and a shielding assembly is arranged at the top end of the box body. The shielding assembly comprises a shielding plate, a separation frame arranged at the bottom end of the shielding plate and a separation plate arranged in the separation frame, a side separation plate is arranged on the outer side of the separation frame, through holes are formed in the separation frame and the separation plate, and a shielding rubber ring is arranged at the bottom end of the shielding plate; the problem that internal working devices of a driving amplifier in the prior art generate electromagnetic interference mutually is solved, meanwhile, the position of an internal structure and the cable trend are standardized, the interior is more concise and convenient to overhaul, an external shielding rubber ring structure can achieve interference connection through interference fit between the external shielding rubber ring structure and a clamping frame, and the service life of the driving amplifier is prolonged. On one hand, connection is enhanced, and on the other hand, the internal structure is assisted to prevent electromagnetic interference.

Description

TECHNICAL FIELD

[0001] The utility model relates to drive amplifier device technical field, concretely relates to a wideband self bias drive amplifier. BACKGROUND

[0002] The power amplifier component is an indispensable component in the high-power transmitting system, and high requirements are put forward for electromagnetic shielding. If electromagnetic radiation is not well managed, the high-power electromagnetic waves will interfere with each other in the regional environment, causing damage to the communication system, directly affecting the normal work of electronic equipment and instruments, and causing information failure, control failure and poor communication. An effective way to control electromagnetic radiation pollution is to install an electromagnetic shielding device. The electromagnetic shielding device is a closed shell made of metal material. When the alternating electromagnetic field is transmitted to the metal shell, the amplitude is attenuated, thereby reducing the harmful electromagnetic intensity to within the allowable range.

[0003] However, the internal working devices of the drive amplifier of the prior art will interfere with each other, which is easy to cause power amplifier stray, so that the drive amplifier cannot work normally. CONTENT OF THE UTILITY MODEL

[0004] TECHNICAL PROBLEM

[0005] In view of the above shortcomings of the prior art, the utility model provides a wideband self bias drive amplifier, which can effectively solve the problem that the internal working devices of the drive amplifier of the prior art will interfere with each other, which is easy to cause power amplifier stray, so that the drive amplifier cannot work normally.

[0006] TECHNICAL SCHEME

[0007] In order to achieve the above purpose, the utility model realizes the following technical scheme:

[0008] The utility model provides a wideband self bias drive amplifier, which comprises a box body, an interface is arranged on the outer side of the box body, a groove is formed in the top side of the box body from the top end to the bottom end, and a clamping frame is arranged in the groove, a shielding assembly is arranged on the top end of the box body, the shielding assembly comprises a shielding plate, a partition frame arranged at the bottom end of the shielding plate and a partition plate arranged in the partition frame, a side partition plate is arranged on the outer side of the partition frame, through holes are formed in the partition frame and the partition plate, a shielding rubber ring is arranged at the bottom end of the shielding plate, a positioning plate with positioning holes is fixed to the outer wall of the shielding plate, a connecting plate structure with positioning holes is arranged on the outer side of the box body, and the connecting plate and the positioning plate are fixedly connected through bolts and nuts.

[0009] Further, a groove with a size matching that of the partition frame is formed in the top end of the shielding plate.

[0010] Further, the shielding assembly is made of electromagnetic wave shielding material, and the shielding rubber ring is made of conductive silicone rubber material.

[0011] Further, the inner diameter of the clamping frame is smaller than the outer diameter of the shielding rubber ring, and the two are in interference fit.

[0012] Further, grooves are formed at the four corners of the shielding plate and the cover plate, and threaded grooves are formed at the four corners of the top end of the box body.

[0013] Further, the through hole is positioned to match the position of the interface.

[0014] Advantages

[0015] Compared with the known prior art, the technical scheme of the utility model has the following advantages:

[0016] The shielding assembly structure is arranged in the box body, and can be directly placed in the partition frame separated by the partition plate. The through hole structure is arranged in the partition plate and the partition frame, which facilitates the connection of the internal cable and the communication of the structures in the partition frame. The independent partition space structure solves the problem of electromagnetic interference between the internal working devices of the driving amplifier in the prior art, and regulates the position of the internal structure and the cable direction, so that the internal structure is more simple and convenient for maintenance. The shielding rubber ring structure is connected with the clamping frame through interference fit, which strengthens the connection and realizes auxiliary electromagnetic interference protection of the internal structure.

[0017] In the device, the box body, the shielding assembly and the cover plate are connected and fixed by the connecting plate and the positioning plate, and are connected by the positioning hole. The connection is achieved by bolts and nuts, which facilitates the disassembly and maintenance of the internal structure, facilitates on-site operation, and reduces economic loss caused by direct replacement. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is one of the structural split views of the utility model;

[0021] Figure 3 It is the second structure split drawing of the utility model;

[0022] Figure 4 It is the structure diagram of the shielding assembly of the utility model;

[0023] Figure 5 It is the structure split drawing of the shielding assembly of the utility model.

[0024] The reference numerals in the drawing represent respectively: 1, box body; 11, clamping frame; 12, connecting plate; 2, interface; 3, shielding assembly; 31, shielding plate; 32, partition frame; 33, partition plate; 331, through hole; 34, side partition plate; 35, positioning plate; 36, shielding rubber ring; 37, positioning hole; 4, cover plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] The utility model will be further described below in combination with embodiments.

[0027] Embodiment: a broadband self-bias drive amplifier, referring to the accompanying Figure 1 - the accompanying Figure 5 , including box body 1, the outside of box body 1 is provided with interface 2, the top end side of box body 1 is opened with groove to bottom end, and clamping frame 11 is provided in groove, the top end of box body 1 is provided with shielding assembly 3, shielding assembly 3 includes shielding plate 31, partition frame 32 arranged at the bottom end of shielding plate 31 and partition plate 33 arranged in partition frame 32, the outside of partition frame 32 is provided with side partition plate 34, through hole 331 is opened in partition frame 32 and partition plate 33, the bottom end of shielding plate 31 is provided with shielding rubber ring 36, the outer wall of shielding plate 31 is fixed with positioning plate 35 with positioning hole 37, the outside of box body 1 is provided with the structure of connecting plate 12 with positioning hole 37, connecting plate 12 and positioning plate 35 are fixedly connected by bolt and nut; the structure of box body 1-shielding assembly 3-cover plate 4 is connected and fixed by connecting plate 12-positioning plate 35, and is connected by positioning hole 37, wherein bolt-nut connecting mode is used, which is convenient for users to disassemble and overhaul the internal structure, is convenient for on-site operation, reduces the economic loss caused by direct replacement.

[0028] The top end of the shielding plate 31 is provided with a groove with a size matching that of the partition frame 32; the shielding assembly 3 is made of a material capable of shielding electromagnetic waves, and the shielding rubber ring 36 is made of conductive silicone; the inner diameter of the clamping frame 11 is smaller than the outer diameter of the shielding rubber ring 36, and the two are in interference fit; the shielding plate 31 and the cover plate 4 are provided with groove structures at the four corners, and the top end of the box body 1 is provided with a threaded groove; the position of the through hole 331 matches that of the interface 2; the shielding assembly 3 is arranged in the box body 1, and can be directly placed in the partition frame 32 separated by the partition plate 33; the through hole 331 is arranged in the partition plate 33 and the partition frame 32, which facilitates the connection of the internal cable and the communication of the structures in each partition frame 32; the independent partition space structure solves the problem of electromagnetic interference between the internal working devices of the drive amplifier in the prior art, and standardizes the position of the internal structure and the cable layout, making the internal structure more simple and convenient for maintenance; the external shielding rubber ring 36 is in interference fit with the clamping frame 11, which realizes interference connection, strengthens the connection, and assists the internal structure in resisting electromagnetic wave interference.

[0029] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not change the essence of the corresponding technical solutions out of the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A wideband self-biased driver amplifier characterized by, The utility model provides a box body (1) is provided with interface (2) on the outside, and the top end of box body (1) is opened with the slot body to the bottom end, and the slot body is provided with clamping frame (11) in, the top end of box body (1) is provided with shielding assembly (3), and shielding assembly (3) includes shielding plate (31), the partition frame (32) of setting up in shielding plate (31) bottom end and the baffle (33) of setting up in partition frame (32), the outside of partition frame (32) is provided with side baffle (34), and the through hole (331) is opened in partition frame (32) and baffle (33), the bottom end of shielding plate (31) is provided with shielding rubber ring (36), and the outside wall of shielding plate (31) is fixed with the positioning plate (35) with positioning hole (37), and the outside of box body (1) is provided with the connecting plate (12) structure of positioning hole (37), and the connecting plate (12) and positioning plate (35) are fixedly connected through bolt and nut.

2. A wideband self-biased driver amplifier according to claim 1, characterized in that, The top end of the shielding plate (31) is opened with a slot body with a size suitable for the size of the partition frame (32).

3. A wideband self-biased driver amplifier according to claim 1, wherein, The shielding assembly (3) is made of a material that can shield electromagnetic waves, and the shielding rubber ring (36) is made of conductive silicone.

4. A wideband self-biased driver amplifier according to claim 1, wherein, The inner diameter size of the clamping frame (11) is smaller than the outer diameter size of the shielding rubber ring (36), and the two are interference fit.

5. A wideband self-biased driver amplifier according to claim 4, characterized in that, Slot structures are formed through the four corners of the shielding plate (31) and the cover plate (4), and threaded grooves are formed in the top four corners of the box body (1).

6. A wideband self-biased driver amplifier according to claim 1, wherein, The position of the through hole (331) is adapted to the position of the interface (2).

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