Air cooling structure of electric control assembly of electric vehicle

Abstract

The utility model belongs to the technical field of electric carriers, in particular to an air cooling structure of an electric control assembly of an electric carrier, which comprises the electric control assembly and a heat dissipation aluminum plate, the heat dissipation aluminum plate comprises a bottom plate, an assembly station is arranged on the bottom surface of the bottom plate, a plurality of heat dissipation fins are distributed on the bottom plate on the periphery of the assembly station at intervals, and the heat dissipation fins are arranged on the bottom plate. A first air flow guiding channel is formed between every two adjacent cooling fins, a cooling fan is arranged on the assembly station, an air flow flowing space exists between the cooling fan and the bottom face of the bottom plate, and the air inlet end of each first air flow guiding channel is communicated with the air flow flowing space. According to the utility model, by optimizing the position design of the radiating fins, sufficient assembly stations can be vacated for the radiating fan, so that the horizontal height of the air outlet part of the radiating fan can extend into the horizontal height of the radiating fins, and air flow generated by the radiating fan can be directly blown into the bottom plate firstly; and then the airflow is turned into each airflow guide channel I through the airflow flowing distance, so that the heat dissipation effect is better.

Description

Technical field:

[0001] The utility model belongs to the technical field of electric vehicles, and particularly relates to an air cooling structure of an electric control assembly of an electric vehicle. Background technology:

[0002] An electric vehicle is a mobile vehicle that uses electricity as its motive force and is driven by a traction motor. Common electric vehicles include electric cars, electric motorcycles, and electric power-assisted bicycles. Compared with traditional vehicles, electric vehicles are equipped with batteries that supply power to the motor and an electronic control unit that performs motor drive control. During operation, the motor, battery, and electronic control unit will generate a large amount of heat. Therefore, a corresponding cooling mechanism needs to be configured to remove the heat to prevent high-temperature overload of electronic components.

[0003] The fan assembly, motor controller and electric vehicle disclosed in the existing Chinese utility model patent (authorization announcement number CN207604130U), wherein the motor controller includes a radiator and a fan assembly, wherein the fan assembly is arranged on the radiator, and the radiator is provided with a plurality of heat dissipation ribs, and the heat dissipation ribs are provided with bayonet holes, and the bracket buckle is engaged with the bayonet holes. That is, the fan assembly is directly connected to the heat dissipation ribs of the radiator by means of a bayonet, and the airflow generated by the fan assembly is blown toward the heat dissipation ribs and the heat dissipation channel formed between the two heat dissipation ribs to achieve the purpose of air cooling. However, due to the obstruction of the position of the heat dissipation ribs, most of the airflow generated by the fan assembly cannot effectively enter the heat dissipation channel, and the heat dissipation effect is poor. Summary of the invention:

[0004] The purpose of the utility model is to provide an air-cooling structure for an electric vehicle electronic control assembly, which optimizes the position coordination between the heat dissipation fins and the heat dissipation fan so that the airflow generated by the heat dissipation fan can be directly blown into the bottom plate first, and then turned to each airflow guide channel through the airflow flow spacing, thereby achieving a better heat dissipation effect.

[0005] The utility model is achieved in this way:

[0006] A wind-cooling structure for an electric vehicle electronic control assembly includes an electronic control assembly and a heat dissipation aluminum plate arranged at the bottom of the electronic control assembly, wherein the heat dissipation aluminum plate includes a base plate, an assembly station is provided on the bottom surface of the base plate, a plurality of heat dissipation fins are spaced apart on the base plate located at the periphery of the assembly station, an airflow guide channel 1 is formed between two adjacent heat dissipation fins, a heat dissipation fan is provided on the assembly station, the heat dissipation fan can generate an airflow blowing toward the bottom surface of the base plate, and there is an airflow flow spacing between the heat dissipation fan and the bottom surface of the base plate, the height of which is less than that of the heat dissipation fins, and the air inlet end of each airflow guide channel 1 is connected to the airflow flow spacing.

[0007] In the above-mentioned air-cooling structure of the electronic control assembly of an electric vehicle, a heat dissipation groove is opened on the base plate, the assembly station and the heat dissipation fins are arranged in the heat dissipation groove, and an airflow guide channel 2 is formed between the heat dissipation fins and the heat dissipation groove, and the airflow guide channel 2 is connected to a part of the airflow guide channel 1 or the airflow flow spacing.

[0008] In the above-mentioned air-cooling structure of the electric vehicle electronic control assembly, a plurality of support columns are arranged on the assembly station, and assembly screw holes are opened on the end faces of the support columns along their axial directions. The cooling fan is screwed and fixed to the corresponding assembly screw holes through fasteners.

[0009] In the above-mentioned air cooling structure of the electric vehicle electronic control assembly, the assembly station has a plurality of airflow diversion protrusions evenly distributed circumferentially around the airflow center of the cooling fan, and the airflow diversion protrusions are arranged radially along the airflow center of the cooling fan.

[0010] In the above-mentioned air cooling structure of the electronic control assembly of an electric vehicle, the vertical cross-section of the airflow diversion protrusion is a triangular structure, and the triangular slopes of the airflow diversion protrusion are respectively a gentle slope and a steep slope with a slope greater than the gentle slope, and the gentle slope is located radially outside the steep slope.

[0011] The outstanding advantages of the utility model compared with the prior art are:

[0012] The utility model discloses the utility model has a simple structure, reasonable design and low cost, and on the basis of the existing technical structure, can spare sufficient assembly positions for the heat dissipation fan by optimizing the position design of the heat dissipation fins, so that the horizontal height of the air outlet of the heat dissipation fan can be extended between the horizontal heights of the heat dissipation fins, so that the airflow generated by the heat dissipation fan can be directly blown into the bottom plate first, and then turned to each airflow guide channel through the airflow flow spacing, so that the heat dissipation effect is better. Description of the drawings:

[0013] Figure 1 It is a three-dimensional diagram of the whole machine of the utility model;

[0014] Figure 2 It is an exploded view of the whole machine of the utility model.

[0015] In the figure: 1. Electronic control assembly; 2. Base plate; 3. Assembly station; 4. Heat dissipation fins; 5. Air flow guide channel 1; 6. Cooling fan; 7. Air flow guide channel 2; 8. Support column; 9. Assembly screw hole; 10. Air flow guide protrusion. Specific implementation method:

[0016] The present invention is further described below with reference to specific embodiments. Figure 1 —2:

[0017] A wind-cooling structure for an electric vehicle electronic control assembly includes an electronic control assembly 1 and a heat dissipation aluminum plate arranged at the bottom of the electronic control assembly 1, wherein the heat dissipation aluminum plate includes a base plate 2, an assembly station 3 is provided on the bottom surface of the base plate 2, a plurality of heat dissipation fins 4 are spaced apart on the base plate 2 located at the periphery of the assembly station 3, an airflow guide channel 5 is formed between two adjacent heat dissipation fins 4, a heat dissipation fan 6 is provided on the assembly station 3, the heat dissipation fan 6 can generate an airflow blowing toward the bottom surface of the base plate 2, and there is an airflow flow spacing between the heat dissipation fan 6 and the bottom surface of the base plate 2, the height of which is less than that of the heat dissipation fins 4, and the air inlet end of each airflow guide channel 5 is connected to the airflow flow spacing.

[0018] The utility model has a simple structure, reasonable design and low cost. On the basis of the existing technical structure, by optimizing the position design of the heat dissipation fins 4, sufficient assembly stations 3 can be vacated for the heat dissipation fan 6, so that the horizontal height of the air outlet of the heat dissipation fan 6 can be extended between the horizontal heights of the heat dissipation fins 4, so that the airflow generated by the heat dissipation fan 6 can be directly blown into the bottom plate 2 first, and then turned to each airflow guide channel 5 through the airflow flow spacing, so that the heat dissipation effect is better.

[0019] Furthermore, in the present embodiment, the heat dissipation fins 4 and the base plate 2 are an integrated structure, and the specific structure is: a heat dissipation groove is opened on the base plate 2, the assembly station 3 and the heat dissipation fins 4 are both arranged in the heat dissipation groove, and an airflow guide channel 2 7 is formed between the heat dissipation fins 4 and the heat dissipation groove, and the airflow guide channel 2 7 is connected to a part of the airflow guide channel 1 5 or the airflow flow spacing.

[0020] In order to form an airflow gap between the cooling fan 6 and the bottom surface of the bottom plate 2 and ensure that the cooling fan 6 can be fixed on the assembly station 3, a plurality of support columns 8 are provided on the assembly station 3, and assembly screw holes 9 are provided on the end surfaces of the support columns 8 along the axial direction thereof, and the cooling fan 6 is screwed and fixed with the corresponding assembly screw holes 9 by fasteners. Of course, the fixing method between the cooling fan 6 and the bottom plate 2 can also directly adopt the snap-fit ​​assembly in the prior art; and the height of the support columns 8 is the size of the airflow gap.

[0021] At the same time, in order to enable the airflow to be effectively dispersed to the surrounding airflow guide channel 1 5 or airflow guide channel 2 7 in the airflow flow interval, the assembly station 3 is evenly distributed with a plurality of airflow diversion protrusions 10 around the airflow center of the cooling fan 6, and the airflow diversion protrusions 10 are arranged radially along the airflow center of the cooling fan 6.

[0022] The structure of the airflow flow protrusion is further optimized. The vertical section of the airflow diversion protrusion 10 is a triangular structure. The triangular slopes of the airflow diversion protrusion 10 are a gentle slope and a steep slope with a slope greater than the gentle slope, and the gentle slope is located radially outside the steep slope.

[0023] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An air cooling structure for an electric vehicle electric control assembly, comprising an electric control assembly (1) and a heat dissipation aluminum plate arranged at the bottom of the electric control assembly (1), characterized in that: The heat dissipation aluminum plate comprises a base plate (2), the bottom surface of the base plate (2) is provided with an assembly station (3), a plurality of heat dissipation fins (4) are spaced apart on the base plate (2) located at the periphery of the assembly station (3), an air flow guide channel (5) is formed between two adjacent heat dissipation fins (4), a heat dissipation fan (6) is arranged on the assembly station (3), the heat dissipation fan (6) can generate an air flow blowing toward the bottom surface of the base plate (2), and there is an air flow spacing between the heat dissipation fan (6) and the bottom surface of the base plate (2) whose height is less than that of the heat dissipation fins (4), and the air inlet end of each air flow guide channel (5) is connected to the air flow spacing.

2. The air cooling structure of the electric vehicle electronic control assembly according to claim 1, characterized in that: The bottom plate (2) is provided with a heat dissipation groove, the assembly station (3) and the heat dissipation fins (4) are both arranged in the heat dissipation groove, an airflow guide channel 2 (7) is formed between the heat dissipation fins (4) and the heat dissipation groove, and the airflow guide channel 2 (7) is connected to a part of the airflow guide channel 1 (5) or the airflow flow interval.

3. The air cooling structure of the electric vehicle electronic control assembly according to claim 1 or 2, characterized in that: The assembly station (3) is provided with a plurality of support columns (8), and assembly screw holes (9) are provided on the end faces of the support columns (8) along their axial directions. The heat dissipation fan (6) is screwed and fixed to the corresponding assembly screw holes (9) via fasteners.

4. The air cooling structure of the electric vehicle electronic control assembly according to claim 1 or 2, characterized in that: The assembly station (3) is provided with a plurality of airflow guiding protrusions (10) uniformly distributed in the circumferential direction around the airflow center of the heat dissipation fan (6), and the airflow guiding protrusions (10) are arranged along the radial direction of the airflow center of the heat dissipation fan (6).

5. The air cooling structure of the electric vehicle electronic control assembly according to claim 4, characterized in that: The vertical cross-section of the airflow guiding protrusion (10) is a triangular structure, and the triangular inclined surfaces of the airflow guiding protrusion (10) are respectively a gentle inclined surface and a steep inclined surface with a slope greater than the gentle inclined surface, and the gentle inclined surface is located radially outside the steep inclined surface.

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