19results about How to "Avoid charging" patented technology

The wireless elevator calling equipment comprises a self-generating device and a main control board, an elevator calling button is arranged at the input end of the self-generating device, and the elevator calling button can be pressed by external force to drive the self-generating device to work so as to generate electric energy; a power management module, a main control module and a wireless communication module are integrated on the main control board; the output end of the self-generating device is electrically connected with the main control module and the wireless communication module through the power management module. According to the wireless elevator calling equipment based on self power generation, an external power source is replaced by the self power generation device, the problems of charging and replacing of a battery are avoided, maintenance of a system is simplified, meanwhile, a wired calling mode is replaced by the wireless communication technology, the requirement of an elevator calling system for cable laying is lowered, and the service life of the elevator calling system is prolonged. The wiring amount in the elevator installation process is greatly reduced, and the construction difficulty and cost are reduced.

The embodiment of the utility model relates to the technical field of charging protection of electronic equipment, in particular to a charging switching protection device. The adapter comprises an adapter main body and a protection module, wherein the adapter main body is provided with an input port and an output port; the protection module is arranged in the adapter main body, the input end of the protection module is electrically connected with the input port, and the output end of the protection module is electrically connected with the output port; the protection module comprises a main control chip and a current detection assembly, the input end of the current detection assembly is connected with the output port, and the output end of the current detection assembly is connected with the signal enabling end of the main control chip. The protection device is reliable and effective, physical power failure is realized through a mode of detecting a load by the main control chip, the service life of a battery of the electronic equipment is prolonged, the overcharge potential safety hazard of the electronic equipment is reduced, meanwhile, the protection device does not need to change the configuration of an original charger, and the protection cost of a user is reduced while the electronic equipment is effectively prevented from being overcharged.

This application discloses an auxiliary power supply module and a power distribution terminal, belonging to the field of power supply. The auxiliary power supply module includes a charging circuit, an energy storage unit, a power failure detection delay circuit, a boost circuit, and a power output terminal. The charging circuit is connected to the energy storage unit and is used to charge the energy storage unit using the main power supply voltage when the main power supply voltage is normal. The power failure detection delay circuit is connected to both the charging circuit and the boost circuit and is used to output a working voltage to the boost circuit when the main power supply voltage is less than a first target voltage for a target duration. The energy storage unit is connected to the boost circuit and is used to output a stored energy voltage to the boost circuit. The boost circuit is connected to the power output terminal and is used to supply power at the working voltage, converting the stored energy voltage into a supply voltage and providing it to the power output terminal. The supply voltage is used to power the power distribution terminal. This application can improve the service life of the auxiliary power supply module and improve the stability of power supply.

Disclosed is a display device including: a display panel including a display area provided with pixels and a non-display area provided around the display area; and at least one gate driver configured to apply a scan signal and a light emission signal to the pixels. The compensation capacitor is short-circuited during the light emission period, but is applied with a DC voltage during at least one other driving period.

A battery protecting device and method according to embodiments of the present invention may identify accumulated charging time period of charging current applied to the battery cell and determine whether to permanently block charging and discharging of the battery cell by comparing the accumulated charging time period with a predetermined threshold time period, thereby preventing battery cell ignition due to lithium plating occurring in the battery cell caused from charging current.

The invention relates to the technical field of charging control of electrical automation equipment, in particular to a charging system of the electrical automation equipment, which comprises a storage battery module. The data acquisition module comprises a timer, a voltage sensor, an electric quantity determination assembly and a temperature sensor; the charging control module is used for analyzing the input voltage to determine single-time voltage fluctuation and fluctuation frequency so as to determine whether the stability of the input voltage is qualified or not, and is used for determining whether the residual electric quantity is corrected or not based on the open-circuit voltage so as to determine a switching sequence, a charging sequence and a preset charging duration of each standby battery based on the residual electric quantity; whether the preset charging duration is corrected or not is determined based on the charging temperature, and an alarm is given under the condition that the actual charging duration is greater than the preset charging duration; and switching to the storage battery module based on the unqualified input voltage, and controlling each standby battery based on the switching sequence and the charging sequence. The working efficiency of the electrical automation equipment is improved, and the service life of the electrical automation equipment is prolonged.

This invention discloses a vehicle. A vehicle includes: a power receiving unit for receiving power from an external source; a power storage device; a user input unit for accepting the setting of a timer charging schedule; and a control device for controlling timer charging of the power storage device using power supplied from an external source, according to the set schedule. The control device is configured to, when a vehicle system request is received before the charging start time specified by the schedule, initiate control based on the vehicle system request and charge standby until the charging start time specified by the schedule.

The present invention belongs to the technical field of battery charging management, and discloses a lithium battery low-temperature charging system and a charging method thereof; the method comprises: collecting battery characteristic data and battery environment data of a lithium battery in real time; processing the battery characteristic data to obtain battery processing data; analyzing the battery characteristic data and the battery processing data to determine whether to generate an early warning instruction, wherein the early warning instruction comprises an abnormal instruction, a semi-abnormal instruction and a temperature abnormal instruction; if a semi-abnormal instruction is generated, charging is interrupted, and the lithium battery is preheated, and after the preheating is completed, the battery characteristic data is recollected and the battery processing data is obtained, and it is determined again whether an abnormal instruction is generated; the present invention realizes full intelligent management of the low-temperature charging process of the lithium battery, thereby effectively preventing safety hazards from occurring during the low-temperature charging process, improving the charging efficiency and service life of the lithium battery in a low-temperature environment, and realizing more efficient and safe low-temperature charging.

The invention relates to a printing machine (01) designed as a sheet-fed printing press (01), having at least one printing head (09) and a roll unwinding device (24), wherein the printing machine (01) is provided with a transport path for transporting a printing substrate (02), and wherein the printing machine (01) has a central cylinder (07) as a printing substrate guide element (07), the printing head (09) being arranged pointing towards the central cylinder, and wherein the printing machine (01) has a charging device (03) having at least one charging electrode (04) designed as a DC voltage electrode (04), and wherein the region of the transport path for transporting the printing substrate (02) which is adjacent to the charging electrode (04) is arranged before the printing point (11) defined by the printing head (09), and wherein the central cylinder (07) is earthed, and wherein the printing head (09) is earthed, and wherein the minimum distance (c) between at least one spray opening (12) of the printing head (09) and at least one charging electrode (04) is at least 20 mm.

This invention relates to a mining positioning card and its charging protection method, belonging to the field of mining positioning card charging safety technology. The positioning card includes a charging detection module, a power management module, a battery pack unit, a main controller unit, and other functional units. The charging detection module receives power input from the charger, supplies power to the power management module, and detects the charging current and voltage. Based on the charging status, it outputs a first logic level signal to the power management module. The main controller unit performs protocol matching with the charger and outputs a second logic level signal to the power management module based on the protocol matching result. The power management module combines the first and second logic level signals to determine whether the battery pack unit is charging. This invention can protect the positioning card's mainboard components from damage caused by high voltage and high current, avoid affecting battery performance and lifespan, and ensure the positioning card operates normally, stably, and reliably underground.

Embodiments of this application provide a charging control method, an energy storage module, and a powered device. The method includes: obtaining a sampling voltage of an input port of a DC-DC unit; determining a charging parameter of the DC-DC unit for an energy storage unit based on the sampling voltage of the input port of the DC-DC unit and a preset constant voltage of the input port of the DC-DC unit, where a sum of a charging electricity quantity reflected by the charging parameter and a charging electricity quantity of a load is equal to a maximum output electricity quantity of an input source; and after the charging parameter is determined, charging the energy storage unit by using the charging electricity quantity reflected by the charging parameter. By using the method, in a scenario in which the input source is weak, the input source can always maintain maximum output power, and an input voltage of the energy storage module can be stabilized, thereby avoiding a phenomenon of repeated charging and discharging of the energy storage module. In addition, an increase in hardware costs can be avoided, and coupling between the energy storage module and another module can be reduced.

The utility model discloses a multipath double-open anti-electric shock protection device based on electric vehicle charging and discharging, and relates to the technical field of electric vehicles, the multipath double-open anti-electric shock protection device based on electric vehicle charging and discharging comprises a control box, the control box is provided with a protection mechanism for protecting the control box, and the protection mechanism is provided with an electric shock protection mechanism for protecting the control box. The protection mechanism comprises a plug, a socket, a gun head and a three-pole double-throw switch, the three-pole double-throw switch is located between the control box and the gun head, the three-pole double-throw switch and the control box are connected through an L-OUT line and an N-OUT line, and the plug and the control box are connected through an L line and an N line. By arranging the discharge selection resistor, the charging speed of the battery or the capacitor can be controlled, too fast or too slow charging can be avoided, the service life of the battery or the capacitor can be prolonged, and the battery or the capacitor can be prevented from being overcharged by selecting a proper resistance value through the proper discharge selection resistor.

The invention discloses a new energy vehicle high-voltage pre-charging control method, system and device, and relates to the field of vehicle high-voltage pre-charging, and the method comprises the steps: employing an all-in-one controller to connect with a low-voltage storage battery, and the all-in-one controller comprises a motor controller MCU and a DC-DC converter DCDC; the VCU controls a low-voltage storage battery to be boosted to a pre-charging target voltage through the all-in-one controller, and a first capacitor C1 of a motor controller MCU in the all-in-one controller is pre-charged through the low-voltage storage battery; and when the voltage of the first capacitor C1 reaches the pre-charging target voltage of a preset percentage within the pre-charging time, the pre-charging is successful. The low-voltage storage battery is adopted for pre-charging the first capacitor C1 of the MCU in the all-in-one controller, the risk that a pre-charging resistor R1 in a pre-charging branch is heated and fails during pre-charging is avoided, and the high-voltage safety of the whole vehicle is improved.

The invention discloses a fuel cell automobile energy management method based on a fixed time period, which comprises the following steps: after the whole automobile is started, determining whether to start a fuel cell system according to the SOC (State of Charge) of a power battery and the current working condition; after the fuel cell system is started, the output power of the fuel cell system is determined according to the energy consumption of the fixed time period. According to the fuel cell automobile energy management method based on the fixed time period, a simple and efficient energy management strategy is provided, the energy management strategy based on the fixed time period is optimized by adding a fuel cell system start-stop strategy and an output power correction coefficient, and the energy management efficiency of the fuel cell automobile is improved by optimizing an output power calculation method of the fuel cell system. According to the method, the # imgabs0 # of the power battery is maintained at the value during starting, unnecessary charging is avoided, the economical efficiency of the system is improved, meanwhile, the variable load of the fuel battery is reduced, the service life of the fuel battery is prolonged, and more efficient energy management is achieved on the basis that the service life of the fuel battery is guaranteed.

The utility model discloses a novel sealing rubber ring for heat exchanger pipeline belongs to heat exchanger technical field, including clamping flange no.

The utility model discloses a charging time control system of an intelligent charger, which comprises a voice offline identification module, a power supply master control module, a WIFI module, a gateway and a mobile phone APP installed on a mobile phone, and is characterized in that the voice offline identification module comprises a voice identification chip, an identification algorithm module, a microphone and a loudspeaker; the voice recognition chip is electrically connected with the recognition algorithm module, the microphone and the loudspeaker at the same time, and the recognition algorithm module is further electrically connected with the input end of the power source main control module. According to the utility model, a user can set the charging time of the intelligent charger to the mobile phone battery through the voice offline identification module, and can also set the charging time of the intelligent charger to the mobile phone battery through the cooperation of the mobile phone APP and the WIFI module; therefore, the long-time charging of the mobile phone battery is effectively avoided, and the service life of the mobile phone battery is greatly prolonged.

Provided is a long-life electret device preventing charge degradation of an electret element sealed in a closed space. The provided electret device includes: a package member; a lid member; and an electret element, the lid member seals the package member to thereby form a closed space, the electret element is placed in the closed space, and a hydrogen getter is included in at least part of an inside of the closed space.

This invention discloses a portable power unit and its crane. The battery is equipped with a temperature alarm module and is connected to a motor and a charging device via a circuit for storing and outputting electrical energy. The battery is also connected to a radiator via a circuit. The hydraulic pump includes at least one electronically controlled variable pump and at least one gear pump, and is connected to the crane's hydraulic system via hydraulic lines. The motor includes a drive motor that converts the electrical energy output from the battery into mechanical energy used by the hydraulic pump. The charging device includes a charging cable and a charger. This invention can be used in traditional fuel-powered cranes, overcoming the problems of expensive batteries and high costs associated with pure electric cranes. It also eliminates the need for complex chassis driving and onboard operation control systems. It can operate in pure electric or plug-in mode. In plug-in mode, it can effectively increase the continuous working time compared to pure electric cranes. Using plug-in mode avoids the need for the vehicle to be parked, turned off, and stopped for charging.