Patent ID: 11912107
Assignee: NIO TECHNOLOGY (ANHUI) CO., LTD
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B

Claim 4:
5. The air outflow device according to claim 3, wherein a first auxiliary mounting groove and a second auxiliary mounting groove are formed in the end of the column sleeve close to the output portion of the second electric motor, the first auxiliary mounting groove is in communication with the end of the first helical groove close to the output portion of the second electric motor, and the second auxiliary mounting groove is in communication with the end of the second helical groove close to the output portion of the second electric motor; and/or
a third auxiliary mounting groove and a fourth auxiliary mounting groove are formed in the end of the column sleeve remote from the output portion of the second electric motor, the third auxiliary mounting groove is in communication with the end of the first helical groove remote from the output portion of the second electric motor, and the fourth auxiliary mounting groove is in communication with the end of the second helical groove remote from the output portion of the second electric motor.