Novel power amplifier case

Abstract

The utility model discloses a novel power amplifier case, which comprises a U-shaped case, a front panel and a rear panel are respectively mounted on two sides of the U-shaped case, a bottom plate is mounted on the side surface of the rear panel and positioned at the upper part of the U-shaped case, and a radiator and a fan sealing cover are respectively mounted on the upper surface of the bottom plate. A plurality of sets of fans are installed on the portion, located on the upper portion of the bottom plate, of the side face of the fan sealing cover, supporting frames are symmetrically installed on the inner walls of the two sides of the U-shaped machine shell, machine box partition plates are installed on the upper portions of the two sets of supporting frames through transverse connecting rods, and a plurality of sets of wiring open grooves are formed in the middles of the machine box partition plates; a plurality of groups of wiring slots are formed in the rear panel, buckles are mounted in each group of wiring slots, an interface mounting plate is mounted in the middle of the rear panel in a penetrating manner, and a plurality of groups of interfaces for wiring are formed in the middle of the interface mounting plate, so that the overall structure improves the maintenance convenience and reduces the material loss and the production cost while ensuring the strength of the case.

Description

Technical Field

[0001] This utility model relates to the field of power amplifier technology, specifically a novel power amplifier chassis. Background Technology

[0002] A power amplifier (PA) is a crucial electronic device whose core function is to amplify low-power input signals into high-power signals to drive loads such as speakers and antennas. In the field of communications, PAs, as signal processing devices, are widely used at the end of the base station transmission link to drive antennas to radiate signals. In military radar systems, PAs can improve power density and efficiency, enhancing detection capabilities. In the field of electronic warfare, PAs are used to increase the strength of jamming signals and improve countermeasures effectiveness.

[0003] Traditional power amplifier chassis generally suffer from structural design deficiencies: internal components are scattered and use a non-removable integrated structure, making equipment maintenance and component replacement extremely inconvenient; at the same time, with the increasing integration of power amplifier circuits, traditional heat dissipation designs are no longer sufficient to cope with the increasingly concentrated heat accumulation problem. These problems seriously affect the operational stability, lifespan, and maintenance efficiency of power amplifier equipment.

[0004] According to the authorization announcement number CN 214757330 U, a novel audio power amplifier chassis structure is disclosed, including a front panel, a rear panel, a bottom panel, side panels, and a cover plate. The side panels are fixed to both sides of the bottom panel, the front panel is fixed to the front side of the bottom panel, the rear panel is fixed to the rear side of the bottom panel, and the cover plate is disposed on the top of the bottom panel. A set of fixing buckles is disposed on the upper surface of the front panel, and a set of mounting threaded holes is provided on the rear side wall of the rear panel. A set of bottom box fixing holes is provided on the outer side wall of each side panel, and a set of sliding grooves is provided on the upper surface of each side panel. A set of fixing grooves is provided on the front side of the bottom of the cover plate, a set of C-shaped buckles is provided on both the left and right sides of the bottom of the cover plate, and a mounting hole is provided on the rear side of the bottom of the cover plate.

[0005] Existing power amplifier chassis have a dispersed internal structure, resulting in messy wiring and other problems. The non-removable overall design makes maintenance difficult and replacement inconvenient. Therefore, a new type of power amplifier chassis is needed. Utility Model Content

[0006] The purpose of this utility model is to provide a novel power amplifier chassis, which avoids the problems of scattered internal structure and difficult chassis maintenance through modular layout design and detachable chassis, thereby solving the technical problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel power amplifier chassis includes a U-shaped housing, with a front panel and a rear panel respectively installed on both sides of the U-shaped housing. A base plate is installed on the side of the rear panel above the U-shaped housing. A heat sink and a fan enclosure are respectively installed on the upper surface of the base plate. Several sets of fans are installed on the side of the fan enclosure above the base plate.

[0009] The inner walls on both sides of the U-shaped housing are symmetrically equipped with support frames. The upper part of the two sets of support frames is equipped with a chassis partition through a horizontal connecting rod. Several sets of wiring slots are opened in the middle of the chassis partition. Each set of wiring slots is equipped with a buckle. Several sets of power modules are snapped onto the upper part of the chassis partition.

[0010] An interface mounting plate is installed through the center of the rear panel, and the interface mounting plate has several sets of interfaces for wiring in the center.

[0011] Preferably, fixed support plates are symmetrically installed on both sides of the radiator, and both sets of fixed support plates are installed on the upper surface of the base plate by bolts.

[0012] Preferably, a window is provided in the middle of the front panel corresponding to the fan, and a fan baffle is installed in the middle of the window.

[0013] Preferably, the fan damper adopts a louvered structure design, and the blades of the fan damper are arranged in a downward inclined manner.

[0014] Preferably, the rear panel has a plurality of heat dissipation holes in the middle corresponding to the heat sink, and the plurality of heat dissipation holes are arranged in an array.

[0015] Preferably, the upper part of the chassis partition is provided with several sets of slots, and each set of power modules is snapped into the interior of the corresponding slot.

[0016] Preferably, the front panel has a screen mounting slot in the middle of the upper part of the fan baffle, and the front panel has a number of button holes in the screen mounting slot.

[0017] Preferably, the front panel has several sets of positioning holes symmetrically opened in the middle for mounting handles, and the several sets of positioning holes are evenly distributed on both sides of the fan baffle.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The modular layout design of the support frame and chassis partitions effectively solves the problem of the scattered internal structure of traditional chassis. This not only facilitates the quick installation and removal of power modules but also achieves more rational space utilization. Cable management slots and clips on the chassis partitions allow for neat and organized cable management, and the centralized interface mounting plates prevent cable clutter from the outset. The rear panel connects to the bottom plate, allowing for the complete removal of components such as heatsinks and fans from the bottom plate during maintenance, greatly improving maintenance convenience. The overall structure ensures chassis strength while improving maintenance convenience and reducing material waste and production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the upper structure of the chassis partition of this utility model;

[0022] Figure 3 This is a schematic diagram of the lower structure of the chassis partition of this utility model;

[0023] Figure 4 This is a schematic diagram showing the disassembled upper structure of the U-shaped housing of this utility model.

[0024] In the diagram: 1. U-shaped casing; 2. Front panel; 3. Rear panel; 4. Base plate; 5. Heat sink; 6. Fan enclosure; 7. Fan; 8. Support frame; 9. Chassis partition; 10. Cable routing groove; 11. Clip; 12. Power module; 13. Fixing plate; 14. Fan baffle; 15. Heat dissipation holes; 16. Screen mounting slot; 17. Button holes; 18. Positioning holes; 19. Interface mounting plate; 20. Interface. Detailed Implementation

[0025] 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.

[0026] This utility model provides: a novel power amplifier chassis, such as Figures 1-4As shown, the system includes a U-shaped housing 1, with a front panel 2 and a rear panel 3 mounted on its two sides. A base plate 4 is mounted on the side of the rear panel 3 above the U-shaped housing 1. A heat sink 5 and a fan enclosure 6 are mounted on the upper surface of the base plate 4. Several sets of fans 7 are mounted on the side of the fan enclosure 6 above the base plate 4. The U-shaped housing 1 serves as the main frame of the chassis, providing basic structural support for the entire power amplifier chassis. Its regular shape facilitates the orderly installation and layout of internal components. It connects the front panel 2, rear panel 3, and base plate 4 into a whole, forming a relatively enclosed space that provides physical protection for the internal electronic components. The window in the middle corresponding to the fans 7 and the fan baffle 14 ensure ventilation and heat dissipation while preventing foreign objects from entering the chassis.

[0027] Fan 7 uses the Delta AFB1212HH high-performance axial fan, which has an air volume of 120 CFM and can meet the temperature control requirements of power amplifiers at ≤85℃ under full load. Its dual ball bearing design ensures long life and stable operation, while supporting PWM speed regulation, which can dynamically adjust the air volume according to the temperature to balance heat dissipation and noise. Its industrial-grade protection features enable it to work reliably in harsh environments and are suitable for high heat density equipment such as power amplifier chassis.

[0028] Support frames 8 are symmetrically installed on the inner walls of both sides of the U-shaped chassis 1. Chassis partitions 9 are mounted on the upper part of the two sets of support frames 8 via horizontal connecting rods. Several cable routing slots 10 are cut into the middle of the chassis partitions 9, and each slot 10 has a clip 11 installed inside. Several power modules 12 are snapped onto the upper part of the chassis partitions 9. The symmetrically installed support frames 8 on both sides of the U-shaped chassis 1, together with the chassis partitions 9 mounted on the horizontal connecting rods, create a stable internal support structure for the chassis. The support frames 8 share the weight of the chassis partitions 9 and the power modules 12 installed on them, preventing the chassis partitions 9 from deforming due to excessive load, thus enhancing the structural strength and stability of the entire chassis. The chassis partitions 9 divide the internal space of the U-shaped chassis 1, allowing for the partitioning of components with different functions and avoiding cable clutter.

[0029] An interface mounting plate 19 is installed through the center of the rear panel 3. Several sets of wiring interfaces 20 are provided in the center of the interface mounting plate 19. By centrally mounting the interface mounting plate 19 in the center of the rear panel 3, all wiring interfaces 20 are concentrated in one place, facilitating cable connection and management for users. This centralized design allows users to quickly and accurately locate the required interface, reducing wiring errors and improving work efficiency.

[0030] Preferably, fixed support plates 13 are symmetrically installed on both sides of the radiator 5. Both sets of fixed support plates 13 are bolted to the upper surface of the base plate 4. By symmetrically setting fixed support plates 13 on both sides of the radiator 5 and firmly installing them on the base plate 4 with bolts, the radiator 5 can be stably fixed in the designated position inside the chassis. The symmetrical fixing method ensures that the radiator 5 is subjected to uniform force, avoiding displacement or loosening of the radiator due to vibration or other factors during use, and ensuring that it reliably performs its heat dissipation function.

[0031] Furthermore, a window is provided in the middle of the front panel 2 corresponding to the fan 7, and a fan baffle 14 is installed in the middle of the window. The louvered fan baffle 14 can effectively guide airflow while ensuring a certain degree of protection, so that the air blown out by the fan 7 can be discharged from the chassis more smoothly, improving heat dissipation efficiency and ensuring that the heat inside the chassis can be dissipated in time to maintain the normal operating temperature of the equipment. The louvered design makes the internal structure invisible when viewed from the front or from below, which is more aesthetically pleasing and does not affect the heat dissipation efficiency of the chassis.

[0032] Preferably, the fan damper 14 adopts a louvered structure design, and the blades of the fan damper 14 are arranged in a downward tilting manner. The downward tilting of the blades can effectively prevent backflow of airflow and improve the stability of system operation. This structure can reduce forward wind resistance and ensure ventilation efficiency, while blocking reverse airflow and preventing pollutants from entering; at the same time, it has the advantages of high mechanical strength, strong deformation resistance, and easy maintenance.

[0033] Furthermore, the rear panel 3 has several sets of ventilation holes 15 in the center corresponding to the heat sink 5. These ventilation holes 15 are arranged in an array, which increases the air exchange area between the inside and outside of the chassis. This allows the air heated by the heat sink 5 to be expelled from the chassis more quickly, accelerating air circulation. Cool air enters from other parts of the chassis, while hot air is expelled through these ventilation holes, creating good convection and significantly improving heat dissipation efficiency. This helps maintain the normal operating temperature of the components inside the chassis and ensures stable operation of the equipment.

[0034] It is worth noting that the upper part of the chassis partition 9 has several sets of slots. Each power module 12 is snapped into the corresponding slot. When installing the power module 12, you only need to align it with the slot and gently insert it to complete the installation. No additional tools are required, which greatly saves installation time. The staff can easily remove the power module from the slot, which reduces the difficulty and time cost of maintenance and improves the maintainability of the equipment.

[0035] Specifically, a screen mounting slot 16 is provided in the middle of the front panel 2, above the fan baffle 14, and several sets of button holes 17 are provided in the screen mounting slot 16 in the middle of the front panel 2. The screen mounting slot 16 and button holes 17 on the upper part of the fan baffle 14 make reasonable use of the front panel space. This does not affect the ventilation and heat dissipation function of the fan baffle, and provides suitable positions for the installation of the screen and buttons, making the layout of the front panel more compact and reasonable, making full use of limited space resources, and improving the overall space utilization rate of the chassis.

[0036] More specifically, the front panel 2 has several sets of symmetrically arranged positioning holes 18 for mounting handles in the center. These positioning holes 18 are evenly distributed on both sides of the fan baffle 14. The positioning holes 18 are used to install handles, allowing operators to more easily move and transport the chassis. The symmetrically distributed handle design ensures that the chassis is subjected to even force during transport, making it less prone to tilting or falling, thus ensuring the safety and stability of transport and reducing the risk of damage to internal components due to improper handling.

[0037] 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 novel power amplifier chassis, comprising a U-shaped housing (1), characterized in that: The U-shaped housing (1) is equipped with a front panel (2) and a rear panel (3) on its two sides respectively. The side of the rear panel (3) is equipped with a base plate (4) on the upper part of the U-shaped housing (1). The upper surface of the base plate (4) is equipped with a radiator (5) and a fan shroud (6). The side of the fan shroud (6) is equipped with several sets of fans (7) on the upper part of the base plate (4). The inner walls on both sides of the U-shaped housing (1) are symmetrically equipped with support frames (8). The upper part of the two sets of support frames (8) is equipped with a chassis partition (9) through a horizontal connecting rod. The middle part of the chassis partition (9) is provided with several sets of wiring slots (10). Each set of wiring slots (10) is equipped with a buckle (11). The upper part of the chassis partition (9) is snapped with several sets of power modules (12). An interface mounting plate (19) is installed through the middle of the rear panel (3), and the interface mounting plate (19) has several sets of interfaces (20) for wiring in the middle.

2. The novel power amplifier chassis according to claim 1, characterized in that: Fixed support plates (13) are symmetrically installed on both sides of the radiator (5), and both sets of fixed support plates (13) are installed on the upper surface of the base plate (4) by bolts.

3. The novel power amplifier chassis according to claim 2, characterized in that: The front panel (2) has a window in the middle corresponding to the fan (7), and a fan baffle (14) is installed in the middle of the window.

4. The novel power amplifier chassis according to claim 3, characterized in that: The fan baffle (14) adopts a louvered structure design, and the blades of the fan baffle (14) are arranged in a downward inclined manner.

5. A novel power amplifier chassis according to claim 4, characterized in that: The rear panel (3) has several sets of heat dissipation holes (15) in the middle corresponding to the heat sink (5), and the several sets of heat dissipation holes (15) are arranged in an array.

6. A novel power amplifier chassis according to claim 5, characterized in that: The upper part of the chassis partition (9) is provided with several sets of slots, and each set of power modules (12) is snapped into the interior of the corresponding slot.

7. A novel power amplifier chassis according to claim 6, characterized in that: The front panel (2) has a screen mounting slot (16) located above the fan baffle (14) in the middle, and the front panel (2) has a number of button holes (17) located in the screen mounting slot (16).

8. A novel power amplifier chassis according to claim 7, characterized in that: The front panel (2) has several sets of positioning holes (18) symmetrically opened in the middle for mounting handles, and the several sets of positioning holes (18) are evenly distributed on both sides of the fan baffle (14).

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