CN-224218195-U - Main unit heat radiation structure of electric vehicle

Abstract

The utility model provides a heat dissipation structure of a host machine of an electric vehicle, which comprises a motor shell, wherein a spiral heat dissipation structure is arranged on the outer side wall of the motor shell, the outer side wall of the motor shell is movably connected with a guide cover through an elastic buckle device, a high-efficiency heat dissipation structure is arranged on the outer side wall of the guide cover, the outer side wall of the motor shell is rotationally connected with a motor output shaft, and the outer side wall of the motor output shaft is rotationally connected with a fan.

Inventors

• XU HUAJIAN
• XIE HUIYAN
• CHEN HONGYU

Assignees

• 天津萝贝智能机器人有限公司

Dates

Publication Date

20260508

Application Date

20250515

Claims (6)

1. 1. The utility model provides an electric motor car host computer heat radiation structure, includes motor housing (2), its characterized in that, the lateral wall of motor housing (2) is provided with spiral heat radiation structure, the lateral wall of motor housing (2) has kuppe (1) through elasticity buckle device swing joint, the lateral wall of kuppe (1) is provided with high efficiency heat radiation structure, the lateral wall of motor housing (2) rotates and is connected with motor output shaft (23), the lateral wall of motor output shaft (23) rotates and is connected with fan (22).
2. 2. The heat dissipation structure of the electric vehicle host machine according to claim 1, wherein the spiral heat dissipation structure comprises spiral diversion trenches (21) and (21), the spiral diversion trenches (21) and (21) are formed in the outer side wall of the motor housing (2), and the bottom sections of the spiral diversion trenches (21) and (21) are V-shaped.
3. 3. The heat dissipation structure of the electric vehicle host machine according to claim 1, wherein the elastic clamping device comprises an elastic clamping block (24) and a clamping groove (25), the clamping groove (25) is formed in the outer side wall of the motor shell (2), the elastic clamping block (24) is fixedly connected to the inner side wall of the air guide sleeve (1), one end of the elastic clamping block (24) is triangular, and the elastic clamping block (24) is matched with the clamping groove (25).
4. 4. The heat radiation structure of the electric vehicle host machine according to claim 1, wherein the high-efficiency heat radiation structure comprises an air inlet hole (11), an air deflector (12) and an air outlet hole (13), wherein the air inlet hole (11) is formed in one end of the air deflector (1), the cross section of the air inlet hole (11) is arc-shaped, the air deflector (12) is arranged at the edge of the air inlet hole (11), the air outlet hole (13) is formed in the other end of the air deflector (1), and the cross section of the air outlet hole (13) is honeycomb-shaped.
5. 5. The heat dissipation structure of an electric vehicle host machine according to claim 1, wherein the inner side wall of the air guide sleeve (1) is filled with ceramic fiber heat insulation cotton for heat insulation.
6. 6. The heat dissipation structure of the electric vehicle host machine according to claim 1, wherein a rubber sealing strip is arranged at the edge of the air guide sleeve (1).

Description

Main unit heat radiation structure of electric vehicle Technical Field The utility model relates to the field of electric car main machine heat dissipation, in particular to an electric car main machine heat dissipation structure. Background The motor of the electric vehicle can heat under the condition of long-time high-speed riding, which is caused by the discharge of large current, but if the temperature exceeds 60-70 ℃, the motor is abnormally damaged, the insulation of the enameled wire of the motor can be possibly removed, short circuit is caused, the high temperature of the magnetic steel can lose magnetism, and the motor is scrapped; The existing heat radiation structure of the electric vehicle driving system (such as a motor and a controller) is mostly dependent on active heat radiation (such as a fan and liquid cooling) or simple air duct design, and has the following problems that the energy consumption is high, the active heat radiation devices such as the fan consume electric energy, the endurance mileage is shortened, the heat radiation is uneven, the traditional heat radiation fins are single in layout, the heat is easy to gather in a local area, the structure is complex, the liquid cooling system needs additional pipelines and a pump body, and the installation and maintenance cost is high. Disclosure of utility model In order to solve the problems that the existing electric vehicle driving system such as a motor and a controller has a heat radiation structure which depends on active heat radiation such as a fan, liquid cooling or simple air duct design, has high energy consumption, shortens the endurance mileage due to consumption of electric energy by active heat radiation devices such as the fan, has uneven heat radiation, has single traditional heat radiation fin layout, easily gathers heat in a local area, has a complex structure, requires additional pipelines and a pump body for a liquid cooling system, and has high installation and maintenance cost The utility model provides a heat dissipation structure of an electric vehicle host, which adopts the following technical scheme: The utility model provides an electric motor car host computer heat radiation structure, includes the motor housing, the lateral wall of motor housing is provided with spiral heat radiation structure, the lateral wall of motor housing has the kuppe through elasticity buckle device swing joint, the lateral wall of kuppe is provided with high efficiency heat radiation structure, the lateral wall of motor housing rotates and is connected with the motor output shaft, the lateral wall of motor output shaft rotates and is connected with the fan; further, the spiral heat dissipation structure comprises a spiral diversion trench, the outer side wall of the motor shell is provided with the spiral diversion trench, and the bottom section of the spiral diversion trench is of a V shape; Further, the elastic buckle device comprises an elastic clamping block and a clamping groove, the clamping groove is formed in the outer side wall of the motor shell, the elastic clamping block is fixedly connected to the inner side wall of the air guide sleeve, one end of the elastic clamping block is triangular, and the elastic clamping block is matched with the clamping groove for use; Further, the high-efficiency heat dissipation device comprises an air inlet, an air deflector and an air outlet, wherein the air inlet is formed in one end of the air guide sleeve, the cross section of the air inlet is arc-shaped, the air deflector is arranged at the edge of the air inlet, the air outlet is formed in the other end of the air guide sleeve, and the cross section of the air outlet is honeycomb-shaped; Further, the inner side wall of the air guide sleeve is filled with ceramic fiber heat insulation cotton for heat insulation; further, a rubber sealing strip is arranged at the edge of the air guide sleeve. In summary, the beneficial effects of the utility model are as follows: The spiral cooling structure is added, the spiral diversion trench extends along the axial direction and forms an included angle of 30-45 degrees with the running direction of the vehicle, the spiral acceleration effect is formed by utilizing the air flow in the running process, the air flow velocity of a cooling surface is enhanced, the bottom of the spiral diversion trench is V-shaped, the cooling area is increased, the air flow is guided to form turbulent flow, the heat exchange efficiency is improved, the front end of the diversion cover is increased, the angles of the air inlet guide plates are sequentially decreased by 5 degrees from front to back, the air inflow and wind resistance under different speeds are balanced, the honeycomb air outlet holes are formed at the rear end of the diversion cover, the air flow noise is reduced through the porous structure, and meanwhile, the negative pressure effect is utilized to accelerate the hot air discharge. Drawings FIG. 1 is