A radar power amplifier housing with multi-directional heat dissipation fins

By incorporating a heat-conducting plate and a rectangular frame design, combined with a cooling fan and dust filter, the problem of easily damaged heat sink fins is solved, achieving efficient heat dissipation and system stability, while reducing maintenance frequency and costs.

CN224538613UActive Publication Date: 2026-07-21NANJING NAT ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING NAT ELECTRONIC TECH CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The heat sink fins of existing radar power amplifiers are directly exposed to the outside, making them susceptible to damage from accidental impacts or scratches, which affects heat dissipation efficiency and system reliability.

Method used

It adopts an embedded heat-conducting plate and rectangular frame design. The surface of the heat-conducting plate has a mesh-like heat dissipation channel. Combined with a cooling fan and dust filter, it provides multi-directional heat dissipation path and physical protection by embedding a die-cast shell through the mounting holes.

Benefits of technology

It effectively protects the heat sink fins from damage, improves heat dissipation efficiency, ensures stable system operation, and reduces maintenance frequency and costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a radar power amplifier casing with multidirectional radiating fin belongs to radar power amplifier parts technical field. This radar power amplifier casing with multidirectional radiating fin, include: die casting casing and heat abstract mechanism, the surface of die casting casing is set up with mounting hole, the heat abstract mechanism includes the heat conduction board embedded installation in the inside of mounting hole, the surface of heat conduction board is set up with the network formula radiating passage, the heat conduction board and network formula radiating passage cooperate and constitute multidirectional radiating fin, the surface of heat conduction board is equipped with the rectangular frame, the surface of rectangular frame is set up with the evenly distributed air guide hole, the heat abstract mechanism is embedded installation in the inside of mounting hole through heat conduction board, makes multidirectional radiating fin no longer direct exposure, effectively reduces the risk of accidental collision or scratch damage. The surface of heat conduction board is equipped with the rectangular frame, and the air guide hole is set up on the surface of rectangular frame, provides airflow channel as the physical barrier protection fin simultaneously.
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Description

Technical Field

[0001] This utility model relates to the technical field of radar power amplifier components, and in particular to a radar power amplifier housing with multi-directional heat dissipation fins. Background Technology

[0002] The radar power amplifier housing is made of metal and precision engineering, integrating heat dissipation, shielding, and protection functions. It achieves efficient heat dissipation through external multi-directional heat dissipation fins. It supports intermediate frequency signal amplification and SC band upconversion, and works with digitally controlled attenuators and phase shifters to achieve gain adjustment and precise modulation, ensuring that the signal radiation power is consistent with the real echo characteristics, and guaranteeing the high performance and long life of the equipment.

[0003] However, this design also exposes the heat sink fins directly to the external environment, posing a risk of deformation or damage due to accidental collisions, scratches, or impacts from foreign objects, which may affect heat dissipation efficiency and the long-term reliability of the system. Utility Model Content

[0004] Therefore, it is necessary to provide a radar power amplifier housing with multi-directional heat dissipation fins to address the problem that existing external multi-directional heat dissipation fins are easily damaged by foreign objects, thus affecting heat dissipation.

[0005] A radar power amplifier housing with multi-directional heat dissipation fins includes: a die-cast housing and a heat dissipation mechanism, wherein mounting holes are provided on the surface of the die-cast housing.

[0006] In one embodiment, the heat dissipation mechanism includes a heat-conducting plate embedded in the mounting hole, the surface of the heat-conducting plate having a mesh-like heat dissipation channel, the heat-conducting plate and the mesh-like heat dissipation channel cooperating to form a multi-directional heat dissipation fin, the surface of the heat-conducting plate being fitted with a rectangular frame, the surface of the rectangular frame having uniformly distributed air guide holes.

[0007] In one embodiment, the mesh-type heat dissipation channel is composed of multiple horizontal channels and multiple vertical channels orthogonally connected, and the depth of the mesh-type heat dissipation channel is in a 4:5 ratio to the thickness of the heat-conducting plate.

[0008] In one embodiment, a cooling fan is fixedly connected between the heat-conducting plate and the rectangular frame, and the exhaust end of the cooling fan faces the mesh-type heat dissipation channel.

[0009] In one embodiment, four threaded posts are fixedly connected to the side end of the heat-conducting plate. One end of each threaded post extends through a cooling fan. A first nut that contacts the cooling fan is threaded onto the surface of each threaded post. The first nut is located on the side of the cooling fan away from the heat-conducting plate.

[0010] In one embodiment, one end of one of the two threaded posts extends through the rectangular frame, and the surfaces of the two threaded posts are threadedly connected to a second nut that contacts the rectangular frame. The second nut is located on the side of the rectangular frame facing away from the cooling fan.

[0011] In one embodiment, a dustproof mesh, which is a nylon material component, is adhered to the inside of the air vent.

[0012] In one embodiment, a reinforcing rib that contacts the dust filter is fixedly connected inside the air duct. The reinforcing rib located on the air intake side of the cooling fan is located on the side adjacent to the dust filter facing the cooling fan, and the reinforcing rib located on the air outlet side of the cooling fan is located on the side adjacent to the dust filter facing away from the cooling fan.

[0013] In one embodiment, the reinforcing rib is in the shape of a grid and is made of stainless steel.

[0014] Beneficial effects

[0015] 1. The radar power amplifier housing with multi-directional heat dissipation fins described above has a heat dissipation mechanism embedded in the mounting hole via a heat-conducting plate, preventing the multi-directional heat dissipation fins from being directly exposed and effectively reducing the risk of accidental collisions or scratches. A rectangular frame is fitted onto the surface of the heat-conducting plate, and air vents are formed on the surface of the rectangular frame, providing airflow channels while also acting as a physical barrier to protect the fins.

[0016] 2. The multi-directional heat dissipation fins consist of a heat-conducting plate and a mesh-type heat dissipation channel. The mesh-type heat dissipation channel is composed of multiple horizontal and multiple vertical channels that are orthogonally connected. The depth to the thickness of the heat-conducting plate is four to five, which greatly increases the effective heat dissipation area and provides multi-directional ventilation paths to achieve rapid and uniform heat distribution and efficient heat dissipation, significantly improving heat dissipation efficiency.

[0017] 3. The cooling fan is securely connected to the heatsink and rectangular frame via threaded posts, a first nut, and a second nut, ensuring stable assembly and good contact. The cooling fan provides active forced air cooling, enhancing heat exchange between the airflow and the fins, thereby achieving ultra-high heat dissipation efficiency, preventing localized overheating, and ensuring stable amplifier operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

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

[0020] Figure 2 This is a schematic diagram of the heat dissipation mechanism in this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the heat dissipation mechanism in this utility model;

[0022] Figure 4 This is a partial exploded view of the heat dissipation mechanism in this utility model;

[0023] Figure 5 This is an exploded view of the air guide holes, dustproof net, and reinforcing ribs in this utility model.

[0024] Figure label:

[0025] 100. Die-cast housing; 110. Mounting hole; 200. Heat dissipation mechanism; 210. Heat conduction plate; 211. Mesh-type heat dissipation channel; 220. Rectangular frame; 221. Air vent; 230. Cooling fan; 240. Threaded post; 250. First nut; 260. Second nut; 270. Dustproof mesh; 280. Reinforcing rib. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The following is combined Figure 1 - Figure 5 This invention describes a radar power amplifier housing with multi-directional heat dissipation fins.

[0028] In one embodiment, a radar power amplifier housing with multi-directional heat dissipation fins includes: a die-cast housing 100 and a heat dissipation mechanism 200, wherein the surface of the die-cast housing 100 is provided with mounting holes 110.

[0029] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the heat dissipation mechanism 200 includes a heat-conducting plate 210 embedded in the mounting hole 110. The surface of the heat-conducting plate 210 has a mesh-like heat dissipation channel 211. The heat-conducting plate 210 and the mesh-like heat dissipation channel 211 cooperate to form a multi-directional heat dissipation fin. It is composed of multiple orthogonally connected transverse and longitudinal channels, with a depth-to-thickness ratio of four to five. This design greatly increases the effective heat dissipation area and provides multi-directional ventilation paths, achieving rapid and uniform heat distribution and efficient heat dissipation.

[0030] A rectangular frame 220 is fitted onto the surface of the heat-conducting plate 210, and evenly distributed air vents 221 are formed on the surface of the rectangular frame 220. This design provides a smooth airflow channel and also acts as the first physical barrier, effectively protecting the fragile internal heat dissipation fins from direct impact and scratches.

[0031] A cooling fan 230 is fixedly connected between the heat-conducting plate 210 and the rectangular frame 220, with the exhaust end of the cooling fan 230 facing the mesh-type heat dissipation channel 211. The cooling fan 230 is securely connected to the heat-conducting plate 210 and the rectangular frame 220 as a whole via a threaded post 240 passing through it, and a first nut 250 and a second nut 260 tightened on the threaded post 240. This reliable mechanical connection method ensures stable assembly and good contact of the components, while the cooling fan 230 provides powerful active forced air cooling, which can significantly improve the heat exchange efficiency between the airflow and the fins.

[0032] The 230 cooling fan is the Bi-sonic 4C-230HB, suitable for the heat dissipation needs of radar power amplifier housings. It has a rated voltage of AC220V / 230V, a frame size of 120×120×38mm, and fits most housing spaces. Its 22W power is more energy-efficient, and its 89CFM maximum airflow meets cooling requirements. The ball bearings are suitable for continuous operation, and the aluminum alloy housing provides both heat dissipation and shielding. Power supply must be matched to the voltage and have sufficient power margin. Properly connect the live, neutral, and ground wires, and use a slow-blow fuse in series. Ensure secure installation, identify the airflow direction, and disconnect power before operation. This model offers balanced parameters, moderate cost, and excellent performance; check the latest specifications before selection.

[0033] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a dustproof mesh 270 is bonded inside the air vent 221. The dustproof mesh 270 is a nylon material component that can effectively intercept particulate pollutants such as dust and lint in the air, preventing them from entering the interior of the mechanism and accumulating, thereby avoiding the decrease in heat dissipation performance and the increase in maintenance costs caused by dust blockage. A reinforcing rib 280 that contacts the dustproof mesh 270 is also fixedly connected inside the air vent 221. The reinforcing rib 280 located on the air intake side of the cooling fan 230 is located on the side of the dustproof mesh 270 facing the fan, while the one on the air outlet side is located on the side away from the fan. The reinforcing rib 280 is mesh-shaped and is a stainless steel component. It provides solid mechanical support for the soft nylon dustproof mesh 270, effectively preventing the dustproof mesh 270 from deforming, denting or breaking due to fan suction, airflow pressure or accidental external contact, ensuring the durability and reliability of the protective function.

[0034] In this embodiment, the heat generated by the radar power amplifier is first conducted to the die-cast housing 100, and then transferred to the heat-conducting plate 210 embedded therein through the mounting hole 110. The heat is rapidly diffused in the heat-conducting plate 210 and the mesh-like heat dissipation channels 211 opened on its surface. At the same time, the cooling fan 230 is started, drawing in cold air from the air vents 221 on the rectangular frame 220 and forcibly blowing it into the mesh-like heat dissipation channels 211. This design, which is composed of multiple horizontal and vertical channels that are orthogonally connected, creates a huge effective heat dissipation area and multi-directional ventilation path, so that the high-speed airflow can fully exchange heat with the fins, and finally remove the heat efficiently and evenly. This achieves a heat dissipation efficiency far exceeding that of natural convection, avoids local overheating, provides an extremely stable and reliable working environment for the amplifier, and ensures its high performance and long life.

[0035] Working principle: The entire heat dissipation mechanism 200 is embedded in the mounting hole 110 of the die-cast housing 100, so that the heat conduction plate 210 and the mesh heat dissipation channel 211 are no longer directly exposed. Instead, a sturdy rectangular frame 220 forms the first line of external defense, which can effectively resist accidental collisions or scratches and disperse impact forces. In terms of protection, the air vents 221 on the rectangular frame 220 are bonded with nylon dustproof mesh 270, and are supported and reinforced by mesh-like reinforcing ribs 280 made of stainless steel. This design can effectively intercept dust, particles and other foreign objects, preventing them from blocking the heat dissipation channel or affecting the operation of the cooling fan 230, thereby greatly improving the mechanical reliability and damage resistance of the entire heat dissipation structure. The efficient filtration protection ensures the long-term stability of heat dissipation performance and significantly reduces maintenance frequency and cost.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A radar power amplifier housing with multi-directional heat dissipation fins, characterized in that, include: A die-cast housing (100) has mounting holes (110) on its surface; The heat dissipation mechanism (200) includes a heat-conducting plate (210) embedded in the mounting hole (110). The surface of the heat-conducting plate (210) is provided with a mesh-type heat dissipation channel (211). The heat-conducting plate (210) and the mesh-type heat dissipation channel (211) cooperate to form a multi-directional heat dissipation fin. A rectangular frame (220) is fitted on the surface of the heat-conducting plate (210). The surface of the rectangular frame (220) is provided with uniformly distributed air guide holes (221).

2. The radar power amplifier housing with multi-directional heat dissipation fins according to claim 1, characterized in that, The mesh-type heat dissipation channel (211) is composed of multiple horizontal channels and multiple vertical channels orthogonally connected, and the depth of the mesh-type heat dissipation channel (211) is in a ratio of four to five to the thickness of the heat-conducting plate (210).

3. The radar power amplifier housing with multi-directional heat dissipation fins according to claim 1, characterized in that, A cooling fan (230) is fixedly connected between the heat-conducting plate (210) and the rectangular frame (220), and the exhaust end of the cooling fan (230) faces the mesh-type heat dissipation channel (211).

4. The radar power amplifier housing with multi-directional heat dissipation fins according to claim 3, characterized in that, The heat-conducting plate (210) has four threaded posts (240) fixedly connected to its side end. One end of each threaded post (240) passes through the cooling fan (230). The surface of each threaded post (240) is threaded with a first nut (250) that contacts the cooling fan (230). The first nut (250) is located on the side of the cooling fan (230) away from the heat-conducting plate (210).

5. The radar power amplifier housing with multi-directional heat dissipation fins according to claim 4, characterized in that, One end of one of the two threaded posts (240) extends through the rectangular frame (220), and the surfaces of the two threaded posts (240) are threadedly connected to a second nut (260) that contacts the rectangular frame (220). The second nut (260) is located on the side of the rectangular frame (220) facing away from the cooling fan (230).

6. The radar power amplifier housing with multi-directional heat dissipation fins according to claim 5, characterized in that, The air vent (221) is fitted with a dustproof mesh (270), which is a nylon material component.

7. The radar power amplifier housing with multi-directional heat dissipation fins according to claim 6, characterized in that, The air duct (221) is internally fixedly connected with a reinforcing rib (280) that contacts the dustproof net (270). The reinforcing rib (280) located on the air intake side of the cooling fan (230) is located on the side adjacent to the dustproof net (270) facing the cooling fan (230), and the reinforcing rib (280) located on the air outlet side of the cooling fan (230) is located on the side adjacent to the dustproof net (270) facing away from the cooling fan (230).

8. The radar power amplifier housing with multi-directional heat dissipation fins according to claim 7, characterized in that, The reinforcing rib (280) is in the shape of a grid and is made of stainless steel.