US 12,110,918 B2
Motor case assembly
Jin Qian, Shenzhen (CN)
Assigned to ASIA VITAL COMPONENTS (CHINA) CO., LTD., Shenzhen (CN)
Filed by ASIA VITAL COMPONENTS (CHINA) CO., LTD., Shenzhen (CN)
Filed on Jan. 13, 2022, as Appl. No. 17/575,599.
Prior Publication US 2023/0220866 A1, Jul. 13, 2023
Int. Cl. F04D 29/42 (2006.01); F16B 21/18 (2006.01)
CPC F16B 21/186 (2013.01) [F04D 29/4226 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A motor case assembly comprising:
a shaft having a connection end, the connection end being formed with a groove and a lower section, the lower section being positioned under the groove; and
a motor case including a top wall, the top wall having a top wall outer face and a top wall inner face, the top wall being formed with a perforation for assembling and connecting with the shaft, a hub section protruding from the top wall inner face along a rim of the perforation, the hub section being in communication with the perforation, the hub section having an outer face and an inner face, the outer face being perpendicularly connected under the top wall inner face, the connection end of the shaft being inserted in the hub section and the perforation, whereby the groove is positioned under the top wall inner face corresponding to the inner face of the hub section, an external means being used to apply an external force to the outer face of the hub section so as to make the hub section tightly hoop the connection end of the shaft, by means of the external force, the inner face being partially intruded into the groove of the shaft to form an intrusion body connected with the groove under the top wall inner face, the inner face further having a lower tight hoop section positioned under the intrusion body for tightly enclosing the lower section of the connection end, whereby the motor case and the shaft are securely connected with each other.