Suzhou Littelfuse Ovs Co., Ltd.

Du Cheng

Yanqiu Jia

Dan Jin

Yu Wang

Provided are approaches for integrating solenoids and fuses within a compact housing. In one approach, a fuse apparatus may include a housing including a main body, a cover coupled to a first side of the main body, and a base coupled to a second side of the main body, wherein the cover and the main body define a fuse cavity, and wherein the base and the main body define a main cavity. The fuse apparatus may further include a plurality of fuses disposed within the fuse cavity, and a plurality of solenoids electrically connected to a printed circuit board (PCB), wherein the plurality of fuses is disposed above the PCB, and wherein the PCB is positioned within the main cavity.

Fuse apparatus with integrated solenoids

Provided herein is an improved solenoid electrical switch. In some embodiments, a solenoid electrical switch may include a plunger at least partially disposed in a central aperture of a solenoid for rotation and axial reciprocation between at least two positions into and out of the central aperture relative to a magnetic coupling member. The plunger may include a first component including a main body and a central slot within the main body, and a second component at least partially disposed within the central slot, wherein the second component may include an engagement surface engaged with an inner surface of the central slot.

Two-part solenoid plunger

Provided are approaches for integrating solenoids and fuses within a compact housing. In one approach, a fuse apparatus () may include a housing () including a main body (), a cover () coupled to a first side () of the main body (), and a base () coupled to a second side () of the main body (), wherein the cover () and the main body () define a fuse cavity (), and wherein the base () and the main body () define a main cavity. () The fuse apparatus () may further include a plurality of fuses () disposed within the fuse cavity (), and a plurality of solenoids () electrically connected to a printed circuit board (PCB) (), wherein the plurality of fuses () is disposed above the PCB (), and wherein the PCB () is positioned within the main cavity ().

Provided herein are approaches for determining a status of a fuse or relay. In some embodiments, a system may include a first fuse or relay connected between a first input and a first output, and an optocoupler electrically connected with the first fuse or relay, wherein the optocoupler is operable to monitor a differential voltage of the first input or the first output. The system may further include an input/output (IO) expander receiving a status signal representing a state of the first fuse or relay, wherein only a single input port of the IO expander receives the status signal representing the state of the first fuse or relay.

Growing community of inventors

Suzhou, China

Du Cheng