4results about How to "Avoid leakage current" patented technology

Embodiments of the present application provide a power supply voltage sampling circuit, a power supply device and a vehicle. The power supply voltage sampling circuit is electrically connected with a power module of a vehicle control system, and the power module of the vehicle control system is electrically connected with a first power supply. The first power supply provides power for the power module. The power supply voltage sampling circuit comprises a first controllable switch and a voltage dividing module. The voltage dividing module is electrically connected with the first power supply through the first controllable switch. Based on an effective signal output by the power module, the first controllable switch is in a first state, and the first controllable switch in the first state makes a pass between the voltage dividing module and the first power supply. Based on an ineffective signal output by the power module, the first controllable switch is in a second state, and the first controllable switch in the second state makes a break between the voltage dividing module and the first power supply.

This application relates to the field of power converter technology, specifically to a power module and a power converter. This application aims to solve the technical problem of excessive parasitic inductance introduced into the circuit board, leading to significant power loss in the power converter. Embodiments of this application provide a power module, including a package, a first power chip, and a second power chip. Both the first and second power chips are packaged within the package. The power module also includes connecting lines disposed within the package. The first and second power chips are electrically connected via these connecting lines, facilitating the integration of the power module and improving the power density of the power converter. Because the connecting lines are disposed within the package, and the first and second power chips are electrically connected via these connecting lines, the trace distance on the circuit board can be reduced, lowering the parasitic inductance on the circuit board and thus reducing the power loss of the power converter.

The present disclosure provides a battery control device for a generator set and a vehicle, and relates to the technical field of generator sets, wherein the device comprises a first battery pack, a second battery pack, a negative electrode contactor, a positive electrode contactor and a change-over switch. One end of the negative electrode contactor is connected to the negative electrode of a first set starting motor and the negative electrode of a second set starting motor, and the other end is connected to the negative electrode of the first battery pack and the negative electrode of the second battery pack. One end of the positive electrode contactor is connected to the positive electrode of the first set starting motor and the positive electrode of the first battery pack, and the other end is connected to the positive electrode of the second set starting motor and the positive electrode of the second battery pack. The output end of the change-over switch is connected to the control end of the negative electrode contactor and the control end of the positive electrode contactor. When the change-over switch is in the first gear, the negative electrode contactor and the positive electrode contactor are disconnected. The device can effectively prevent the battery from being depleted, without the need for regular starting of the generator set or external charging maintenance of the battery.

This invention discloses a puncture-resistant shielded wire, relating to the field of wire technology. It includes a wire body with an auxiliary mechanism. The auxiliary mechanism includes a circular ring block and a circular ring groove. Two symmetrical rectangular grooves are formed on one side of the circular ring block. Two locking holes are formed on the outer wall of the circular ring block. Two locking blocks are arranged inside each locking hole. A first sliding groove is formed on the inner wall of each locking hole. Two sliders are slidably connected inside each first sliding groove. A round rod is fixed inside each rectangular groove. This invention, by setting the auxiliary mechanism, enables the puncture-resistant shielded wire to have a rapid heat dissipation function, thus avoiding situations where heat cannot be quickly dissipated, affecting the insulation performance of the wire, shortening its service life, and increasing the fire hazard. This improves both the effectiveness and efficiency of the puncture-resistant shielded wire.