50results about How to "Reduce standby loss" patented technology

The present disclosure relate to a controller system and method for use in storage-style water heating systems that offers significant opportunities for energy saving. The controller system can adjust the water heating system in response to energy demand patterns of user fixtures. The controller system can detect quantity of heated water usage and produce a heated water usage profile. The controller system can determine the quantity or volume of the used heated water without a mechanical flow meter. The controller system can include a cost-effective, accurate, and easy-to-install water temperature sensors that provide measurements of the differentials between water temperatures without direct contact with the water. The water temperature sensors can be cost-effective and easy-to-install sensors that are attached to the water pipes through a strap or other attachment methods.

The invention discloses a vertical type hybrid magnetic suspension flywheel energy storage system. A high-speed permanent magnet motor is a charging and power generating integrated motor, the input / output end is connected with a matrix converter, a flywheel body which can rotate at high speed is used in cooperation, and then the system has the energy storage and energy release bi-directional functions. A permanent magnet offset shaft and radial hybrid magnetic bearings are used as a main supporting structure, a mechanical rolling bearing provides system instability protection, standby losses of the flywheel energy storage system are reduced, and energy conversion efficiency is improved. A metal shell of the system is thick, a vacuum chamber is formed, rotor windmill losses of the system are reduced, and meanwhile the supporting and protection effects are achieved. A base is large, so that the center of gravity of the system is lowered and stability of the system is improved. The system has the advantages of being large in capacity, high in rotating speed and power density, low in standby loss and the like, and can be used for the occasions such as a power grid peak-load regulation occasion, an uninterruptible power supply and a hybrid power locomotive.

The invention relates to a circuit assembly for operating at least one lighting means. The circuit assembly comprises at least one master device (M1); at least one slave device (SL1-1); and a bus system having at least one bus (BM1), by means of which bus system the at least one master device and the at least one slave device are coupled, wherein the bus is designed as a two-wire cable, the at least one master device has at least one feeding connection (SPM1) coupled to the bus and designed to place a control signal (USM1) on the bus, the at least one master device is coupled to a first voltage supply (UVM1), the at least one slave device (SL1-1) comprises a non-feeding connection coupled to the bus, the slave device (SL1-1) comprises a connection for at least one lighting means, a second voltage supply (UVM1S1), and a read-out device for reading out the control signal on the bus, the read-out device comprises a potential-isolating device (D14, Q8) and the connection for the at least one lighting means and the second voltage supply are provided on the side of the read-out device isolated from the bus with regard to potential.

The invention relates to an Internet of things node and a miniaturization integration method thereof. The Internet of things node consists of five efficient solar cells, one polymer lithium ion battery, one main control circuit board, one wireless transmission circuit and various sensors, wherein the main control circuit, the polymer lithium ion battery and the wireless transmission circuit are stacked and interconnected in an MCM (Multi Chip Module) encapsulating way; each layer is connected with an adjacent layer through a double-row 50-foot pin header 2*50; and four surrounding solar cells are connected in parallel with one solar cell covered on the top, a lithium battery is charged during the day, and power is supplied to the wireless transmission circuit through the lithium ion battery at night, so that long service life of the node is ensured. The Internet of things node is characterized in that: 1, the size is only 18 cm<3>, and the volume power density is up to 20.5Wh / l; 2, the service life of the Internet of things node is long, and the Internet of things node can continuously work normally for 28 days on cloudy days according to calculation of once data transmission per hour; 3, the power consumption of the main control circuit is low, the working current is 24muA, and the static current is lower than 1muA; and 4, the non-shielded transmission distance is 700 meters. A new thought is provided for future throwing type miniaturized Internet of things.

A direct current charging pile charging method based on the module maximum current output and alternate rest comprises: and calculating the module maximum output current Imax in the required voltage according to the constant power curve of a single charging module, wherein the charging module number required being put into Num=IBCL / Imax, the minimum module communication address in the work modules is recorded through the charging pile, and the charging piles of the other modules stops work for rest. According to the algorithm mentioned above, the modules put into work starts from the next address recorded at the last time when the next charging is started. The direct current charging pile charging method based on the module maximum current output and alternate rest can reduce the standby loss of the charging piles, improve the operation efficiency of the charging piles and reduce the waste of electric power and the cost of users. Less harmonic wave and improved power factors can reduce the pollution in the electric energy, and the module alternate rest improves the service life of the modules and reduces the maintenance cost.

The present invention provides a display control system and a display screen. The system includes: a sending card, a processing module, a switch module, and a display assembly; the display assembly includes at least one of a receiving card, an adapter card, and a display module; The control end of the switch module is connected to the sending card, the first end of the switch module is used to connect to the power supply, and the second end of the switch module is connected to at least one of the receiving card, the adapter card and the display module; The processing module sends the SDI signal; through the processing module, the SDI signal output by the sending card is detected to determine whether the display component is working. In the open state, at least one of the receiving card, the adapter card and the display module is disconnected from the power supply, and there is no need for user operation to cut off the power, which can reduce the standby power consumption of the display screen and save electric energy.

An energy-saving DC charging method, comprising the following steps: (1) configuring an AC contactor in the main circuit of a DC charging pile; (2) disconnecting the AC contactor before starting charging to reduce the standby loss of the charging module; (3) closing the AC contactor when starting charging. The contactor and the charging module are put into use according to the current demand, which improves the operating efficiency of the charging module and saves power; (4) the AC contactor is disconnected after charging to reduce the standby loss of the charging module; (5) the power fan is controlled by the temperature inside the charging pile cabinet Start and stop to avoid waste of power when the power fan is running. The invention can reduce the standby and operation loss of DC charging piles in the industry before, during and after charging, and improve operating efficiency.

The invention relates to a cascaded electric welding machine power supply topological structure. The cascaded electric welding machine power supply topological structure comprises an electric welding machine power supply host and a wire feeding machine; the electric welding machine power supply host comprises an electric welding machine main loop, a primary isolating switch power supply, a secondary isolating switch power supply, an electric welding machine controller and an electric welding machine secondary step-down switch power supply; the wire feeding machine comprises a secondary step-down switch power supply A, a secondary step-down switch power supply B, a wire feeding machine controller and a human-computer interaction interface which is used for inputting a control instruction to the wire feeding machine controller; the electric welding machine controller is connected with the wire feeding machine controller through a communication line. The cascaded electric welding machine power supply topological structure has the advantages of being small in size, low in cost, low in standby loss, high in comprehensive efficiency and high in reliability.