Johnson Electric is the technology and market leader for door lock motor technologies and module subsystems. Within the vehicle door lock segment, several applications can be addressed with custom modifications to Johnson Electric’s door lock motor platforms. Central Door Locks, Child Locks, Truck Locks and Fuel Lit Locks require motors and subsystems with different specifications.
Johnson Electric door lock motor platforms are designed with precision components to deliver high reliability and low power budgets high stall torque and low cogging torque. High reliability and low power budget are critical door lock system requirements. Custom engineering services ensure that platform motors are modified to meet the exact requirements of each door lock application, e.g. torque, stall current, worm gears, EMC, and environmental specifications.
Johnson Electric’s automotive door lock product line delivers the highest performance with the lowest power budget. An innovative hybrid worm gear technology has been developed to replace the traditional D-cut worm gear in this application. The press fitting of the hybrid worm overcomes the inherent loose fitting disadvantages associated with traditional D-cut designs. The door lock motors deploying this hybrid worm gear provide the highest performance in all critical design parameters; life cycle, pull off force, TIR and twisting torque. This new door lock motor product line also provides a viable alternative to brass worm gears in the most demanding applications.
Johnson Electric’s automotive switch product line under the Saia-Burgess brand sets a new standard for high reliability in door locking systems. The technology leading line of N9 microswitches increases temperature range, reduces the switching current to 1 mA, and increases environmental resistance and robustness in a smaller package. N9 switches are custom engineered for application specific terminal designs and contact platings. The pdf product datasheet provides performance details of these switches.