Heat dissipation assembly of aviation ground power supply

Abstract

The utility model relates to the technical field of aviation ground power supplies, and particularly discloses a heat radiation assembly of an aviation ground power supply, which comprises a heat radiator positioned in a power supply case, a suction opening arranged at the rear end of the power supply case, an air outlet arranged at the bottom of the power supply case, a shutter arranged on the suction opening, and an air guide cover sleeved outside the heat radiator. A fan is arranged at the bottom of the wind scooper, the upper end of the wind scooper is communicated with the suction opening through a water blocking air duct, and the end, connected with the wind scooper, of the water blocking air duct is higher than the end, connected with the suction opening, of the water blocking air duct; according to the utility model, the suction opening is arranged at the rear end of the power supply case and is provided with the shutter, so that rainwater is prevented from directly entering the case from top to bottom, meanwhile, the rainwater can be prevented from entering the wind scooper through the water-blocking air duct, the waterproof effect is improved, an additional waterproof structure is prevented from being added on the outer side of the power supply case, the space is saved, and the cost is reduced. And the air suction opening can be prevented from being shielded.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation ground power supplies, in particular to a heat dissipation component of an aviation ground power supply. Background Art

[0002] The ground power supply is a power supply device that supplies power to the aircraft when it is on the ground. Power is required most of the time when the aircraft is working on the ground. The ground power supply can convert the mains electricity into the voltage and frequency required by the aircraft.

[0003] When the aviation ground power supply supplies power to the aircraft, the power supply is usually installed outdoors for use, which places high requirements on the power supply's rainproofness, especially at island-type airports, where the power supply's protection level is required to reach IP56. However, the power module inside the power supply emits a lot of heat, and sufficient air volume is required to discharge it out of the power supply box. Increasing the air inlet may result in the protection level not meeting the requirements, causing water to enter the power supply, which in turn easily causes the power supply's power device or circuit to fail.

[0004] At present, there are generally two types of air inlets for power supplies, one is bottom air inlet and top air outlet; the other is top air inlet and bottom air outlet. In order to prevent rain, it is generally necessary to add a brim above the power supply chassis to block the rain. This method not only occupies a large space above the power supply, but also has an unsatisfactory rainproof effect. Utility Model Content

[0005] The utility model aims at the above-mentioned deficiencies in the prior art and provides a heat dissipation component for an aviation ground power supply. An exhaust port is arranged at the rear end of a power supply chassis and a shutter is installed to prevent rainwater from directly entering the chassis from top to bottom. At the same time, a water-blocking air duct can be used to prevent rainwater from entering the air guide cover, thereby improving the waterproof effect and avoiding adding an additional waterproof structure on the outside of the power supply chassis. This not only saves space but also avoids blocking the exhaust port.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A heat dissipation component for an aviation ground power supply includes a radiator located in a power supply chassis, an air intake port is provided at the rear end of the power supply chassis, an air outlet is provided at the bottom of the power supply chassis, a shutter is provided on the air intake port, an air guide cover is provided on the outer side of the radiator, a fan is provided at the bottom of the air guide cover, the upper end of the air guide cover is connected to the air intake port through a water-blocking air duct, and the end of the water-blocking air duct connected to the air guide cover is higher than the end connected to the air intake port.

[0008] Preferably, water outlet holes connected to the air outlet are provided around the shutter.

[0009] Preferably, the wind guide cover includes a vertical wind guide cover which is sleeved on the outside of the radiator, the lower end of the vertical wind guide cover is connected to a lower wind guide cover, the fan is fixed to the bottom of the lower wind guide cover, and the upper end of the vertical wind guide cover is connected to an upper wind guide cover which is connected to the water-blocking air duct.

[0010] Preferably, a mounting plate is provided on the side wall of the lower air guide cover, and the mounting plate is located below the water-blocking air duct.

[0011] Preferably, a guide rail is provided on the inner wall of the power supply chassis, and a support plate cooperating with the guide rail is provided on the side wall of the lower air guide cover.

[0012] Preferably, both upper and lower ends of the fins of the heat sink are inclined edges.

[0013] Preferably, the lower end surface of the water-blocking air duct is inclined.

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

[0015] 1. The utility model arranges the air exhaust port at the rear end of the power supply chassis and installs a shutter to prevent rainwater from directly entering the chassis from top to bottom. At the same time, the water-blocking air duct can prevent rainwater from entering the air guide cover, thereby improving the waterproof effect and avoiding adding an additional waterproof structure on the outside of the power supply chassis. This not only saves space but also avoids blocking the air exhaust port.

[0016] 2. The utility model provides a mounting plate on the lower wind shield, which can be used to install power supply parts, thereby realizing the rational use of the space inside the power supply chassis; the lower wind shield is supported by the guide rail, which facilitates the disassembly and assembly of the lower wind shield and improves the convenience of maintenance of the fan.

[0017] 3. The utility model sets the two ends of the fins of the radiator as bevel edges, which reduces wind resistance and noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the power supply chassis;

[0019] Figure 2 The structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 3 The structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 4 is a structural schematic diagram of a radiator;

[0022] Figure 5 It is a structural schematic diagram of the lower air guide cover;

[0023] Figure 6It is a structural schematic diagram of the water-blocking air duct;

[0024] In the figure: 1-power supply chassis; 101-guide rail; 102-water outlet; 103-air outlet; 2-louver; 3-radiator; 4-air duct; 401-lower air guide cover; 402-vertical air guide cover; 403-upper air guide cover; 404-support plate; 405-mounting plate; 5-fan; 6-water-blocking air duct. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-3 As shown, a heat dissipation component of an aviation ground power supply includes a radiator 3 located in a power supply chassis 1. The radiator 3 is a finned radiator 3, which is arranged vertically. An exhaust port is arranged at the rear end of the power supply chassis 1, and an air outlet 103 is arranged at the bottom of the power supply chassis. A shutter 2 is arranged on the exhaust port to prevent rainwater from entering. An air guide cover is sleeved on the outer side of the fins of the radiator 3. The air guide cover is arranged vertically, and adopts a way that the airflow enters from the top and exits from the bottom. A fan 5 is arranged at the bottom of the air guide cover for exhaust. The upper end of the air guide cover is connected to the exhaust port through a water-blocking air duct 6. The end of the water-blocking air duct 6 connected to the air guide cover is higher than the end connected to the exhaust port. The lower end face of the water-blocking air duct 6 is arranged obliquely to prevent rainwater from entering the air guide cover.

[0027] like Figure 6 As shown, water outlet holes 102 connected to the air outlet are provided around the shutter 2, so that rainwater entering the shutter 2 can flow out along the water outlet holes 102. Here, horizontal water outlet holes are provided on both sides of the air outlet, and vertical water outlet holes are provided at the bottom of the air outlet, so that water can flow out when the ground power supply is placed vertically or horizontally.

[0028] The wind guide cover includes a vertical wind guide cover 402 which is sleeved on the outside of the radiator 3. The vertical wind guide cover 402 is a U-shaped structure composed of three plates and is sleeved on the outside of the fins of the radiator 3. The upper and lower ends of the vertical wind guide cover 402 are open structures. The lower end of the vertical wind guide cover 402 is connected to the lower wind guide cover 401, and the fan 5 is fixed at the bottom of the lower wind guide cover 401. The upper end of the vertical wind guide cover 402 is connected to the upper wind guide cover 403 which is connected to the water-blocking air duct 6.

[0029] like Figure 5As shown, a mounting plate 405 is provided on the side wall of the lower air guide cover 401, and the mounting plate 405 is located below the water-blocking air duct 6. The mounting plate 405 can be used to install other components inside the power supply, such as filter capacitors, etc., to achieve reasonable use of space.

[0030] In order to facilitate the maintenance of the fan 5, a guide rail 101 is provided on the inner wall of the power supply chassis 1, and a support plate 404 cooperating with the guide rail 101 is provided on the side wall of the lower air guide cover 401. The support plate 404 and the guide rail 101 are connected by bolts. By opening the bolts, the lower air guide cover 401 and the fan 5 can be directly pulled out from the power supply chassis 1, so that the fan 5 can be quickly replaced.

[0031] like Figure 4 As shown, in order to reduce wind resistance and noise, the upper and lower ends of the fins of the radiator 3 are set as inclined edges.

[0032] When cooling, the fan 5 draws air, and the external cold air enters through the shutter 2, flows to the fins of the radiator 3 through the water-blocking air duct 6 and the air guide cover, cools the radiator 3, and the heat is discharged from the bottom of the chassis to achieve heat dissipation.

[0033] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A heat dissipation assembly for an aviation ground power supply, comprising a heat sink located in a power supply chassis, characterized in that: An exhaust port is provided at the rear end of the power supply chassis, and an air outlet is provided at the bottom of the power supply chassis. A shutter is provided on the exhaust port, an air guide cover is provided on the outer side of the radiator, a fan is provided at the bottom of the air guide cover, and the upper end of the air guide cover is connected to the exhaust port through a water-blocking air duct, and the end of the water-blocking air duct connected to the air guide cover is higher than the end connected to the exhaust port.

2. The heat dissipation component of an aviation ground power supply according to claim 1, characterized in that: Water outlet holes connected with the air outlet are arranged around the shutter.

3. The heat dissipation assembly of an aviation ground power supply according to claim 1, characterized in that: The wind guide cover includes a vertical wind guide cover sleeved on the outside of the radiator, the lower end of the vertical wind guide cover is connected to a lower wind guide cover, the fan is fixed to the bottom of the lower wind guide cover, and the upper end of the vertical wind guide cover is connected to an upper wind guide cover connected to the water-blocking air duct.

4. The heat dissipation assembly of an aviation ground power supply according to claim 3, characterized in that: A mounting plate is provided on the side wall of the lower air guide cover, and the mounting plate is located below the water-blocking air duct.

5. The heat dissipation assembly of an aviation ground power supply according to claim 3, characterized in that: A guide rail is arranged on the inner wall of the power supply chassis, and a supporting plate matched with the guide rail is arranged on the side wall of the lower air guide cover.

6. The heat dissipation assembly of an aviation ground power supply according to claim 1, characterized in that: The upper and lower ends of the fins of the radiator are inclined edges.

7. The heat dissipation assembly of an aviation ground power supply according to claim 1, characterized in that: The lower end surface of the water-blocking air duct is arranged inclined.

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