3results about How to "Avoid accidental disconnection" patented technology

The utility model relates to a vehicle charging system, which comprises a non-vehicle-mounted charger, an electric vehicle, a vehicle interface and a voltage detection module, the non-vehicle-mounted charger comprises an auxiliary power supply, the electric vehicle comprises a battery pack, the vehicle interface comprises a vehicle plug and a vehicle socket, and the auxiliary power supply is used for charging the battery pack; the electric automobile further comprises a walking mechanism and a mechanical locking device, the output end of the voltage detection module is electrically connected with a voltage comparator, the output end of the voltage comparator is electrically connected with a coil of a first relay, and the mechanical locking device is connected with a normally-closed contact of the first relay. When it is detected that the vehicle plug is connected with the vehicle socket, the normally-closed contact of the first relay is disconnected, so that the mechanical locking device is powered off to attract and lock the walking mechanism, the electric vehicle cannot walk, the possibility that a charging gun is pulled by the vehicle in the charging process is reduced, and effective protection on the non-vehicle-mounted charger and the electric vehicle is achieved.

The utility model provides a totally-enclosed insulation disconnecting switch, which relates to the technical field of high-voltage power transmission and comprises a bottom frame, a knob is arranged above the bottom frame, the bottom end of the knob penetrates through the bottom frame and then is provided with a rotating shaft, and a gear is arranged in the bottom frame; according to the utility model, the rotary knob is rotated to drive the gear to rotate, and under the guiding action of the limiting block and the limiting groove, the transmission characteristics of the gear and the rack are utilized to realize the relative or opposite movement of the two groups of totally-enclosed insulating disconnecting switches, so that the two groups of totally-enclosed insulating disconnecting switches can be separated from each other to widen the cable arrangement space or approach each other to adapt to a compact installation environment; the device can quickly adjust the spacing of the disconnecting switches according to the differences of wire specifications and current loads, ensures that different types of wires can be reasonably arranged, and can resist fault magnetic interference and prevent the switches from being accidentally switched off through the fixing effect of the second spring on the knife switch and the clamping seat. And the reliability and the stability of the operation of the power system are obviously improved.

The utility model discloses a wiring loosening prevention structure and a battery. The wiring loosening prevention structure comprises a mounting part, a loosening prevention part and an elastic piece, the mounting part is used for being mounted on a main body structure with a wiring port; the anti-loosening part is movably mounted on the mounting part and is provided with an anti-loosening position and a loosening position in a moving stroke, when the anti-loosening part is located at the anti-loosening position, the anti-loosening part is located on a moving path where the connecting plug is separated from the wiring port so as to limit separation of the connecting plug inserted into the wiring port, and when the anti-loosening part is located at the loosening position, the anti-loosening part is located on a moving path where the connecting plug is separated from the wiring port. The anti-loosening part staggers the moving path of the connecting plug separated from the wiring port; the elastic piece is connected with the mounting part and the anti-loosening part and used for driving the anti-loosening part to reset to the anti-loosening position from the loosening position. According to the scheme, the connecting plug can be pulled out only by pulling the anti-loosening part, and after the anti-loosening part is loosened, the anti-loosening part can be automatically reset to the position for limiting the connecting plug, so that the operation of connecting a cable is relatively convenient when the battery is mounted and debugged or maintained and replaced.