66results about How to "Improve charging quality" patented technology

The invention discloses an initial charging method of a flow battery and a circuit. The circuit comprises a first circuit breaker, a second circuit breaker, a third circuit breaker, a contactor, a step-down transformer, a charging resistor, an electric reactor, a power conversion module, a fourth circuit breaker and a controller, wherein an input end of the first circuit breaker is connected with three-phase alternating current; the second circuit breaker, the third circuit breaker and the contactor are respectively connected with an output end of the first circuit breaker; the step-down transformer is connected with the second circuit breaker in series; the charging resistor is connected with the third circuit breaker in series; the electric reactor is respectively connected with a secondary end of the step-down transformer, the contactor and the charging resistor; an input end of the power conversion module is connected with the electric reactor; an input end of the fourth circuit breaker is connected with an output end of the power conversion module; and the controller is respectively connected with the contactor, the second circuit breaker, the third circuit breaker and the power conversion module. According to the initial charging method of the flow battery and the circuit disclosed by the invention, initial charging of the flow battery can be realized by sufficiently utilizing a self structure of an energy-storing converter, so that the hardware cost is saved and different charging paths can be completely and automatically switched; and therefore, the efficient, convenient and intelligent initial charging of the flow battery can be realized.

Embodiments of the invention disclose a wireless charger capable of prompting position adjustment, a prompting method and chargeable implantable medical equipment. The wireless charger comprises a driver used for generating a high-frequency waveform signal, a resonance circuit used for generating and radiating electromagnetic waves according to the high-frequency waveform signal, and a prompting module used for prompting a user to adjust the position of the wireless charger when abnormal charging of the wireless charger is detected, wherein the driver is connected with the resonance circuit; and the prompting module is connected with the resonance circuit. Whether the current position of the wireless charger is a proper position or not can be detected according to the voltage changes on one side of the charger in wireless charging; prompting can be sent to the user when the wireless charger is in an improper position, so that the user can adjust the position of the wireless charger according to the prompting so as to avoid the problem that the implantable equipment is relatively far from the wireless charger and cannot be charged; and therefore, the charging quality and efficiency of the implantable equipment are improved.

The invention discloses a control system and control method for an electric vehicle charger. The control system comprises a control module, an execution module for transforming electrical energy, a battery management system and a touch screen, wherein after the system is initialized and has no faults after self-inspection, a charging plug is connected into an automobile charging interface; if the connection is failed, the system can automatically identify and alarm; if the connection is successful, a charging mode is selected from the touch screen according to the type of a battery pack; if the battery pack is a lead-acid cell, a conventional charging mode is selected, and a three-staged charging method based on a PID (Proportion Integration Differentiation) control algorithm is adopted; if the battery pack is a lithium ion battery, a charging method is selected according to residual electric quantity of the lithium ion battery; when the residual electric quantity of the lithium ion battery is smaller than 10 percent, an intermittent variable current-constant voltage charging method based on a sliding mode variable structure control algorithm is adopted for charging; otherwise, an intermittent variable voltage-constant voltage charging method based on the sliding mode variable structure control algorithm is adopted for charging. The control system and the control method disclosed by the invention play an important significance on improving the charging efficiency, enhancing the robustness and protecting the service life of the battery.

The invention discloses a heat dissipation charging cable for a new energy vehicle, which includes a cylindrical skeleton arranged at the middle position of the cable and several charging cable units. The cylindrical skeleton is provided with several plate-shaped Skeleton, the plate-shaped skeleton is evenly spaced on the cylindrical skeleton, and is set to point to the center of the cylindrical skeleton; and each of the plate-shaped skeletons is also provided with a water storage cavity inside There are several water cavities arranged inside the same plate-shaped framework, and the water storage chambers are continuously arranged in a row inside the same plate-shaped framework. When the device is in use, the heat generated by charging will be gradually absorbed by the water body in the water storage chamber, and the heat generated will be transferred to the water storage chamber, reducing the heat burden of the charging cable unit itself and increasing the charging time of the cable. Safety and improve charging quality and efficiency; and after charging is completed, the heat dissipation efficiency of the water body is also fast, which can repeatedly absorb heat and dissipate heat, and increase the service life of the cable.