US 11,942,854 B2
Terminal connection structure of electric actuator
Seongsoo Kim, Osan-si (KR); Sung Su Shin, Ansan-si (KR); and Seung-Tae Yun, Ansan-si (KR)
Assigned to KEYANG ELECTRIC MACHINERY CO., LTD., Seoul (KR)
Filed by KEYANG ELECTRIC MACHINERY CO., LTD., Seoul (KR)
Filed on Feb. 10, 2022, as Appl. No. 17/668,787.
Claims priority of application No. 10-2021-0052931 (KR), filed on Apr. 23, 2021.
Prior Publication US 2022/0360134 A1, Nov. 10, 2022
Int. Cl. H02K 5/22 (2006.01); H01R 12/70 (2011.01); H01R 13/11 (2006.01); H02K 7/116 (2006.01); H02K 11/30 (2016.01)
CPC H02K 5/225 (2013.01) [H01R 12/7076 (2013.01); H01R 13/112 (2013.01); H02K 7/116 (2013.01); H02K 11/30 (2016.01); H01R 2201/10 (2013.01); H02K 2211/03 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A terminal coupling structure of an electric actuator, the structure comprising:
a housing constituting an appearance of the electric actuator and having multiple parts installed in the housing;
a motor assembly fixed to a side of the housing and having a motor assembly terminal so as to transmit power and various control signals to a motor and to generate a driving force;
a gear assembly installed inside the housing and connected to the motor assembly so as to be rotated by receiving the driving force of the motor assembly;
a circuit board fixed on a surface of the housing, the circuit board being configured to receive external power and various control signals so as to supply the power to the motor assembly and to control the motor assembly;
a connection groove formed to be recessed inside the housing such that the motor assembly terminal is inserted into and is disposed in the connection groove; and
a fork terminal installed on a surface of the circuit board, the fork terminal being inserted into the connection groove to be in contact with the motor assembly terminal,
wherein the fork terminal comprises:
a fixed plate made of a metal plate having a predetermined thickness and coupled fixedly to the circuit board;
a pair of contact plates formed by protruding forward from the fixed plate and disposed respectively on upper and lower sides of the motor assembly terminal;
a terminal insertion groove formed between the contact plates different from each other by being recessed by a predetermined depth therefrom such that the motor assembly terminal is inserted into the terminal insertion groove;
a contact protrusion formed to have a round shape on an end of each of the contact plates by protruding therefrom, the contact protrusion being in close contact with an upper or lower surface of the motor assembly terminal; and
a press rib formed on the end of the contact plate by extending therefrom, the press rib being in close contact with an inner surface of the connection groove so as to allow the contact protrusion to press the motor assembly terminal.