Heat dissipation mechanism of electric vehicle controller

Abstract

The utility model provides a heat dissipation mechanism of an electric vehicle controller, which relates to the technical field of electric vehicle controllers, and comprises a main controller and an upper shell, the upper part of the main controller is provided with the upper shell, the top of the main controller is provided with upper heat dissipation sheets in an array at intervals, and the upper shell is provided with a hanging lug, a wiring terminal, a heat dissipation hole and an interface; the main controller and a vehicle are installed, an upper cooling fin of the main controller and a shell where the upper cooling fin is located are both made of aluminum alloy metal materials, electronic components in the main controller transmit heat to the upper cooling fin through heat conduction silica gel and the like, the contact face between protrusions of the upper cooling fin and air is increased, and the heat exchange area during heat dissipation is increased. The upper shell of the metal structure can also serve as a heat dissipation part, the heat dissipation face is increased, when the heat dissipation effect needs to be further improved, it is guaranteed that the temperature is stable under the working conditions such as continuous low-speed uphill, hot days in summer and continuous low-speed traffic jam, and the situation of overheating protection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle controllers, in particular to a heat dissipation mechanism of an electric vehicle controller. Background Art

[0002] The electric vehicle controller is the control brain for the state conversion of the electric vehicle such as forward and reverse, motor, and battery charging and discharging. The electric vehicle controller is equipped with various electronic components such as the main control chip. The use of the electric vehicle controller will also generate a lot of heat.

[0003] The heat of the existing electric vehicle controller electronic components is transferred to the external metal shell, and the metal shell performs passive heat dissipation through the external heat sink. However, as the electric vehicle controller increases the power current of the controlled motor, the heat generated will also increase synchronously. In some low-speed and summer working conditions, the passive shell of the metal shell cannot meet the heat dissipation of the electric vehicle controller, causing the electric vehicle controller to have a high temperature alarm and limit its own operation. Utility Model Content

[0004] In order to make up for the above deficiencies, the present application provides a heat dissipation mechanism for an electric vehicle controller, aiming to improve the problems mentioned in the above background technology.

[0005] The embodiment of the present application provides a heat dissipation mechanism for an electric vehicle controller, specifically comprising: a main controller (1) and an upper shell (2); the upper shell (2) is arranged on the upper part of the main controller (1), and the top of the main controller (1) is provided with an upper heat sink (101) in an array.

[0006] Furthermore, the upper shell (2) is also provided with a hanging ear (201), a wiring terminal (202), a heat dissipation hole (203), and an interface (204); the wiring terminal (202) and the interface (204) receive external power and signals and transmit control signals; the heat dissipation hole (203) further increases the heat dissipation effect.

[0007] Optionally, the wiring terminal (202) is installed on one side of the upper shell (2), and is provided with a B connection terminal, a G connection terminal, a Y connection terminal, a positive power connection terminal, and a negative power connection terminal, and the wiring cavities of the positive power connection terminal and the negative power connection terminal are raised; the heat dissipation holes (203) are adjacent to the wiring terminals (202) and are evenly spaced on the upper shell (2); and the interface (204) is located in a recessed portion of the upper shell (2).

[0008] Furthermore, the heat sink (101) has a thickness of 3 mm and a spacing of 7.12 mm.

[0009] Optionally, the hanging ears (201) are used for fixed connection, and the number is 2.

[0010] Optionally, there are 10 heat dissipation holes (203) in total.

[0011] The utility model provides a heat dissipation mechanism for an electric vehicle controller, which has the following beneficial effects:

[0012] The main controller is installed on the vehicle. The upper heat sink and the shell of the main controller are both made of aluminum alloy. The electronic components inside the main controller transfer heat to the upper heat sink through thermal conductive silicone, etc. The bulge of the upper heat sink increases the contact surface with the air, thereby increasing the heat exchange area during heat dissipation.

[0013] The upper shell of the metal structure can also be used as a part of the heat dissipation to increase the heat dissipation surface. When the heat dissipation effect needs to be further improved, the temperature of the working conditions such as continuous low-speed uphill, hot summer days, and continuous low-speed traffic jams can be guaranteed to be stable, reducing the situation of overheating protection; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0015] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] In the attached picture:

[0017] Figure 1 A first axial schematic diagram of the present application is shown;

[0018] Figure 2 A second axis schematic diagram of the present application is shown;

[0019] Figure 3 A cross-sectional structural schematic diagram of the present application is shown;

[0020] Figure 4 A left side schematic view of the present application is shown.

[0021] Reference numerals list

[0022] 1. Main controller; 101. Upper heat sink;

[0023] 2. Upper shell; 201. Mounting ear; 202. Wiring terminal; 203. Heat dissipation hole; 204. Interface. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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.

[0025] Please refer to Figures 1 to 4 :

[0026] The utility model proposes a heat dissipation mechanism of an electric vehicle controller, comprising: a main controller 1 and an upper shell 2, wherein an upper heat sink 101 is arranged in an array at the top of the main controller 1, and an upper shell 2 is arranged on the upper part of the main controller 1, and a hanging ear 201, a wiring terminal 202, a heat dissipation hole 203, and an interface 204 are arranged on the upper shell 2. The wiring terminal 202 and the interface 204 receive external power and signals and transmit control signals. The heat dissipation hole 203 is arranged to further increase the heat dissipation effect. The wiring terminal 202 is installed on one side of the upper shell 2, and the wiring terminal 202 has B, G, and Y connection terminals and positive and negative power connection terminals. The wiring cavity of the positive and negative power connection terminals is raised to facilitate connection and adjustment. The heat dissipation holes 203 are adjacent to the wiring terminals 202 and are evenly spaced, with a total of 10 holes. The interface 204 is located in the recess of the upper shell 2.

[0027] The lugs 201 are used for fixed connection to the vehicle, and there are two of them in total. The heat sink 101 has a thickness of 3 mm and a spacing of 7.12 mm.

[0028] Working principle of this embodiment: the main controller 1 is installed on the vehicle, the upper heat sink 101 of the main controller 1 and the housing are both made of aluminum alloy metal material, the electronic components inside the main controller 1 transfer heat to the upper heat sink 101 through thermal conductive silica gel, etc., the bulge of the upper heat sink 101 increases the contact surface with the air, and increases the heat exchange area during heat dissipation, the upper shell 2 of the metal structure can also be used as a part of the heat dissipation, increasing the heat dissipation surface, when it is necessary to further improve the heat dissipation effect, to ensure the temperature stability of working conditions such as continuous low-speed uphill, hot summer days, continuous low-speed traffic jams, etc., and reduce the situation of overheating protection;

[0029] In this article, there are a few points to note:

[0030] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0031] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0032] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A heat dissipation mechanism for an electric vehicle controller, comprising: A main controller (1) and an upper shell (2); characterized in that an upper shell (2) is arranged on the upper part of the main controller (1); an upper heat sink (101) is arranged in an array at the top of the main controller (1); and the upper shell (2) is also provided with a hanging ear (201), a wiring terminal (202), a heat dissipation hole (203), and an interface (204); the wiring terminal (202) and the interface (204) receive external power and signals and transmit control signals; the heat dissipation hole (203) further increases the heat dissipation effect.

2. The heat dissipation mechanism of an electric vehicle controller according to claim 1, characterized in that: The wiring terminal (202) is installed on one side of the upper shell (2), and is provided with a B connection terminal, a G connection terminal, a Y connection terminal, a positive power connection terminal, and a negative power connection terminal, and the wiring cavities of the positive power connection terminal and the negative power connection terminal are raised; the heat dissipation holes (203) are adjacent to the wiring terminals (202) and are evenly spaced and arranged on the upper shell (2); and the interface (204) is located in a recessed portion of the upper shell (2).

3. The heat dissipation mechanism of an electric vehicle controller according to claim 1, characterized in that: The heat sink (101) has a thickness of 3 mm and a spacing of 7.12 mm.

4. The heat dissipation mechanism of an electric vehicle controller according to claim 2, characterized in that: The hanging ears (201) are used for fixed connection and are two in number.

5. The heat dissipation mechanism of an electric vehicle controller according to claim 3, characterized in that: There are a total of 10 heat dissipation holes (203).

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