Large-flow wind scooper structure

Abstract

The utility model discloses a large-flow wind scooper structure, and aims to provide a large-flow wind scooper structure which is simple in structure, modular in design and capable of actively increasing the volume of air flowing through a radiator by arranging a wind guide pipe structure. The radiator comprises a wind scooper assembly, a cooling fan and a radiator assembly, the wind scooper assembly comprises a wind scooper shell and a cooling fan fixing support, the wind scooper shell comprises a square air suction cavity and a circular air guide pipe, the circular air guide pipe is arranged on the air guide side of the square air suction cavity, and the square air suction cavity is communicated with the cooling fan fixing support. The cooling fan is arranged in the square air suction cavity and connected with the circular air guide pipe through the cooling fan fixing support, the radiator assembly comprises a cooling frame and a plurality of cooling fins, the cooling fins are arranged in the middle of the cooling frame, the cooling frame is connected with the connecting side of the square air suction cavity, and the square air suction cavity is connected with the cooling fan fixing support. And the cooling fan is matched with the plurality of cooling fins. The automobile radiator is applied to the technical field of automobile radiators.

Description

Technical Field

[0001] The utility model is applied to the technical field of automobile radiators, and particularly relates to a large-flow air guide cover structure. Background Art

[0002] With the large-scale development of the domestic new energy bus industry in the past few years, domestic new energy buses have gradually begun to replace traditional fuel buses, and the technology has become more and more mature. Since the motors and electronic controls of new energy buses will generate a lot of heat when working, in order to enable the vehicle to work normally during driving, a cooling system for cooling will be designed on the vehicle. At present, most domestic new energy buses use liquid cooling. Its working principle is that when the vehicle is running, the electronic hydraulic pump in the liquid cooling system works, and the coolant coming out of the radiator assembly is pressurized by the electronic hydraulic pump and flows into the motor controller and motor. After the coolant with lower temperature flows through the motor controller and motor, it absorbs heat and the temperature rises, thereby taking away the heat of the motor controller and motor. The coolant with higher temperature flows into the radiator assembly, and the cooling fan inside the radiator assembly works, forcing the air outside the vehicle body to be guided and flow through the heat exchanger on the radiator assembly. The heat in the coolant is transferred to the air passing through the heat exchanger through the heat exchanger, and finally achieves the heat dissipation effect. With the continuous upgrade of vehicle range and power, the requirements for heat dissipation are also getting higher and higher. A common method is to match a more powerful cooling fan when designing the cooling system. Although this method can improve the heat dissipation performance of the liquid cooling system, it will reduce the ride comfort of the entire vehicle. For example, a certain 500W cooling fan has a maximum sound intensity of 80dB when working, which is far higher than the ambient noise and can easily make people feel uncomfortable. Generally speaking, the greater the power of the cooling fan, the greater its working noise. If a large-flow air guide cover structure with a simple structure and modular design can be designed, which actively increases the air volume flowing through the radiator by setting an air guide duct structure, the above problems can be solved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a large-flow air guide cover structure with a simple structure and modular design, which actively increases the air volume flowing through the radiator by setting an air guide pipe structure.

[0004] The technical solution adopted by the utility model is: the utility model includes an air scoop assembly, a cooling fan and a radiator assembly, the air scoop assembly includes an air scoop shell and a cooling fan fixing bracket, the air scoop shell includes a square air suction chamber and a circular air duct, the circular air duct is arranged on the air guiding side of the square air suction chamber, the cooling fan is arranged inside the square air suction chamber and connected to the circular air duct through the cooling fan fixing bracket, the radiator assembly includes a cooling frame and a plurality of cooling fins, the cooling frame is connected to the connecting side of the square air suction chamber, and the cooling fan cooperates with the plurality of cooling fins.

[0005] Furthermore, the inner diameter of the circular air guide duct is smaller than the inner side length of the square air suction cavity.

[0006] Furthermore, the cooling fan fixing bracket includes a bracket body, a plurality of fixed welding plates are evenly arranged on the outer edge of the bracket body, the bracket body is connected to the inner wall of the air inlet end of the circular air duct through the ends of the plurality of fixed welding plates, and a bypass air duct is arranged between the bracket body and the circular air duct.

[0007] Furthermore, a plurality of connection blocks are provided on one side of the cooling fan, and the bracket body is provided with first connection holes adapted to the plurality of connection blocks, and the cooling fan is connected to the bracket body via a plurality of fan fixing screws, a plurality of the connection blocks and a plurality of the first connection holes.

[0008] Furthermore, a plurality of air guide cover connecting plates are evenly arranged on the connecting side of the square air suction cavity, and the air guide cover connecting plates are provided with second connecting holes. The square air suction cavity is connected to the heat dissipation frame through a plurality of cavity fixing screws and a plurality of the second connecting holes.

[0009] Furthermore, a plurality of fixed vertical plates are arranged between the square air suction cavity and the circular air guide duct.

[0010] The beneficial effect of the utility model is that the square air suction cavity is provided with a circular air duct at the air outlet, and the heat dissipation bracket is separated from the circular air duct by a certain distance through the heat fan fixing bracket, so that a bypass air duct is formed. When the heat dissipation fan is working, the heat dissipation fan forcibly sucks air from the square air suction cavity, that is, the air outside the vehicle body is forced to flow through the plurality of heat dissipation fins, and the air is then blown out from the air duct cavity of the air guide cover. Since the inner diameter of the circular air duct is smaller than the inner side length of the square air suction cavity, the circular air duct can be made The flow rate inside is accelerated. When the airflow enters the square air suction chamber, most of the airflow will be directly passed through the circular air duct by the cooling fan. During this process, a local negative pressure area is formed on the inner side of the circular air duct. The air dynamic pressure on the inner side of the circular air duct is less than the air pressure of the bypass air duct close to it. Part of the airflow flowing into the square air suction chamber will eventually flow out from the inner side of the circular air duct close to the bypass air duct, thereby actively increasing the air flow through the heat exchanger plate of the radiator assembly and increasing the heat dissipation ventilation volume by nearly 10%. By increasing the ventilation volume, the heat dissipation performance of the liquid cooling system can be improved. At the same time, by optimizing the structure of the air duct, the structural strength of the air duct is improved. The resonance intensity of the air duct structure caused by the cooling fan when working is reduced, and the noise is reduced. Compared with the direct-through air blowing heat dissipation of the radiator, it has a higher improvement, simple structure and significant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional view of the utility model;

[0012] Figure 2 It is an exploded view of the utility model;

[0013] Figure 3 It is a schematic diagram of the gas flow direction from the cross-sectional perspective of the utility model;

[0014] Figure 4 is a three-dimensional view of the air guide cover assembly;

[0015] Figure 5 is a three-dimensional view of the cooling fan fixing bracket;

[0016] Figure 6 is a three-dimensional view of the cooling fan;

[0017] Figure 7 is a three-dimensional view of the radiator assembly. DETAILED DESCRIPTION

[0018] like Figures 1 to 7As shown, in this embodiment, the utility model includes an air scoop assembly 1, a heat dissipation fan 2 and a radiator assembly 3, the air scoop assembly 1 includes an air scoop housing 11 and a heat dissipation fan fixing bracket 12, the air scoop housing 11 includes a square air suction chamber 111 and a circular air duct 112, the circular air duct 112 is arranged on the air-guiding side of the square air suction chamber 111, the heat dissipation fan 2 is arranged inside the square air suction chamber 111 and connected to the circular air duct 112 through the heat dissipation fan fixing bracket 12, the radiator assembly 3 includes a heat dissipation frame 31 and a plurality of heat dissipation fins 32, the plurality of heat dissipation fins 32 are arranged in the middle of the heat dissipation frame 31, the heat dissipation frame 31 is connected to the connecting side of the square air suction chamber 111, and the heat dissipation fan 2 cooperates with the plurality of heat dissipation fins 32. It can be seen that the air scoop housing 11 is a sheet metal structure, which is easy to process and has low manufacturing cost. It is mainly divided into a square air suction chamber 111 and a circular air guide chamber 112. The square air suction chamber is welded from multiple steel plates, and the interior is a hexagonal cavity. The connection side has a quadrilateral opening for connecting to the plurality of heat sinks 32 of the radiator assembly 3. The air guide side is a rectangular plate with a large circular hole in the middle, and the large circular hole is used to connect to the large cylinder of the circular air guide chamber 112.

[0019] like Figures 1 to 4 As shown, in this embodiment, the inner diameter of the circular air duct 112 is smaller than the inner side length of the square air suction cavity 111. It can be seen that the inner diameter of the circular air duct 112 is smaller than the inner side length of the square air suction cavity 111, which will form a pressure difference between the circular air duct 112 and the square air suction duct 111 when the cooling fan 2 is working, thereby achieving the effect of increasing the outlet flow rate.

[0020] like Figure 2 , Figure 4 as well as Figure 5 As shown, in this embodiment, the cooling fan fixing bracket 12 includes a bracket body 121, and a plurality of fixed welding plates 122 are evenly arranged on the outer edge of the bracket body 121. The bracket body 121 is connected to the inner wall of the air inlet end of the circular air duct 112 through the ends of the plurality of fixed welding plates 122, and a bypass air duct 9 is arranged between the bracket body 121 and the circular air duct 112. It can be seen that the bracket body 121 is structurally designed with four call number fixed welding plates 122 with a spacing of 90°. The cooling fan 2 can be installed and fixed on the bracket body 121 by bolts, and the bracket body 121 and the circular air duct 112 can be connected together to form a whole, and separated by a certain distance, so that four bypass air ducts 9 are formed between the bracket body 121 and the circular air duct 112.

[0021] like Figure 5 and6 As shown in the figure, in this embodiment, a plurality of connection blocks 4 are provided on one side of the heat dissipation fan 2, and the bracket body 121 is provided with first connection holes 123 adapted to the plurality of connection blocks 4, and the heat dissipation fan 2 is connected to the bracket body 121 through a plurality of fan fixing screws 5, a plurality of the connection blocks 4, and a plurality of the first connection holes 123. It can be seen that the heat dissipation fan 2 can be stably connected to the bracket body through the corresponding plurality of connection blocks 4.

[0022] like Figure 1 , Figure 2 as well as Figure 5 As shown, in this embodiment, a plurality of air guide cover connecting plates 6 are evenly arranged on the connecting side of the square air suction cavity 111, and the air guide cover connecting plates 6 are provided with second connecting holes 7. The square air suction cavity 111 is connected to the heat dissipation frame 31 through a plurality of cavity fixing screws 8 and a plurality of the second connecting holes 7. It can be seen that the stable connection between the square air suction cavity 111 and the heat dissipation frame 31 can ensure the overall sealing and prevent airflow leakage.

[0023] like Figure 4 As shown, in this embodiment, a plurality of fixed vertical plates 113 are arranged between the square air suction chamber 111 and the circular air guide 112. It can be seen that the circular air guide chamber is a short cylinder welded from a steel plate, one end of which is welded to the rectangular plate with a large circular hole on the square air suction chamber, and is welded together through four fixed vertical plates 113. These four fixed vertical plates 113 can effectively reduce the rotation vibration amplitude of the cooling fan 2, reduce the structural resonance of the rectangular plate with a large circular hole, and reduce the working noise of the cooling system assembly.

[0024] The working principle of the utility model is as follows: when the vehicle starts and needs to be cooled, the cooling fan 2 starts to work, and the cooling fan 2 forcibly sucks air from the air suction chamber of the square air guide chamber 111, that is, forces the air outside the vehicle body to flow through the plurality of the heat sinks 32, and the air is then blown out from the air guide end of the square air guide chamber 111. In this process, a local negative pressure area is formed inside the circular air guide chamber 112, and the air dynamic pressure inside the circular air guide chamber 112 is less than the air pressure of the plurality of the bypass air guide ducts 9 close to it. At the same time, since the air molecules blown out from the cooling fan 2 have higher kinetic energy and are directed directly toward the outlet direction, this part of the air will not flow to the inside of the circular air guide chamber 112. As a result, part of the air flowing through the plurality of the heat sinks 32 is sucked into the plurality of the bypass air guide ducts 9, and finally flows out close to the inner side of the circular air guide chamber 112, thereby improving the heat dissipation performance of the radiator assembly, thereby actively increasing the flow of the air guide cover.

[0025] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A large-flow air guide cover structure, comprising an air guide cover assembly (1), a cooling fan (2) and a radiator assembly (3), characterized in that: The air scoop assembly (1) comprises an air scoop shell (11) and a cooling fan fixing bracket (12); the air scoop shell (11) comprises a square air suction chamber (111) and a circular air duct (112); the circular air duct (112) is arranged on the air guiding side of the square air suction chamber (111); the cooling fan (2) is arranged inside the square air suction chamber (111) and is connected to the circular air duct (112) via the cooling fan fixing bracket (12); the radiator assembly (3) comprises a cooling frame (31) and a plurality of cooling fins (32); the plurality of cooling fins (32) are arranged in the middle of the cooling frame (31); the cooling frame (31) is connected to the connecting side of the square air suction chamber (111); and the cooling fan (2) cooperates with the plurality of cooling fins (32).

2. A large flow air guide cover structure according to claim 1, characterized in that: The inner diameter of the circular air guide pipe (112) is smaller than the inner side length of the square air suction cavity (111).

3. A large flow air guide cover structure according to claim 1, characterized in that: The cooling fan fixing bracket (12) comprises a bracket body (121), a plurality of fixing welding plates (122) are evenly arranged on the outer edge of the bracket body (121), the bracket body (121) is connected to the inner wall of the air inlet end of the circular air duct (112) through the ends of the plurality of fixing welding plates (122), and a bypass air duct (9) is arranged between the bracket body (121) and the circular air duct (112).

4. A large flow air guide cover structure according to claim 3, characterized in that: A plurality of connection blocks (4) are provided on one side of the heat dissipation fan (2); the bracket body (121) is provided with first connection holes (123) adapted to the plurality of connection blocks (4); and the heat dissipation fan (2) is connected to the bracket body (121) via a plurality of fan fixing screws (5), a plurality of connection blocks (4) and a plurality of first connection holes (123).

5. The large flow air guide cover structure according to claim 1, characterized in that: A plurality of air guide cover connection plates (6) are evenly arranged on the connection side of the square air suction cavity (111), and the air guide cover connection plates (6) are provided with second connection holes (7). The square air suction cavity (111) is connected to the heat dissipation frame (31) via a plurality of cavity fixing screws (8) and a plurality of the second connection holes (7).

6. A large flow air guide cover structure according to claim 1, characterized in that: A plurality of fixed vertical plates (113) are provided between the square air suction cavity (111) and the circular air guide pipe (112).

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