96results about How to "Uninterrupted power supply" patented technology

The invention relates to the field of headset charging, in particular to a charging box and headset in a headset charging system. A charging box charging management circuit provides a COM common linewith power; a common pin of a charging box MCU is connected with the COM common line; a GND pin of the charging box MCU is connected with a GND line; a headset charging management circuit takes the power from a COM' common line; a common pin of a headset MCU is connected with the COM' common line; the GND pin of the headset MCU is connected with a GND' line; an input end of the headset charging management circuit is also connected to the COM' common line through a capacitor C2; when the headset is inserted into the charging box, powered terminals on the headset are butted with power supply terminals on the charging box, so that the COM common line conducts the COM' common line and the GND line conducts the GND' line; normal power supply and data interaction are carried out between the charging box and the headset through the COM common line and the COM' common line; and when level of the COM' common line is lowered, the capacitor C2 is slowly discharged to the headset charging management circuit and the headset charging management circuit is charged for a while, thereby ensuring uninterrupted power supply for the charging box and the headset during data interaction.

A common-mode filter device and system for regulating aspects of power conversion by a power converter from external source such as solar panels to another external circuit wherein the common-mode filter device substantially attenuates common-mode voltage at the switching frequency plus harmonics of the power converter. The power converter can be single phase, but is preferably a multiple phase.

The invention discloses an electromagnetic induction-type self-energy-storage wireless mouse, and relates to a mouse. The electromagnetic induction-type self-energy-storage wireless mouse comprises a mouse body, a mouse control module, a power supply module, a data encoding module, a wireless transmitting module, a wireless receiving module and a data decoding module, wherein the power supply module comprises a permanent magnet, a circular orbit provided with a slide groove, a slide element, a coil and a rechargeable battery; two ends of the permanent magnet can be fixed on the lower part of the circular orbit by the slide element moving along the circular orbit; the coil is horizontally fixed on the outer periphery of the circular orbit; two ends of the coil are joined up with the rechargeable battery; when the mouse moves, the slide element slides in the circular orbit because of the inertial effect, so that the magnetic flux of the permanent magnet in the coil is changed; inductive electromotive force is generated in the coil; and two ends of the coil are joined up with the rechargeable battery and a load so as to form a closed loop circuit, and inductive current is generated in the closed loop. According to the electromagnetic induction-type self-energy-storage wireless mouse, multiple defects that an existing automatic power supply wireless mouse device is inconvenient to use and the device is complex are overcome.

The invention relates to an intelligent and commutation type three-phase current imbalance automatic adjusting device. The device comprises a main controller, a phase converter, a first current transformer and an anti-power-off electrical appliance element combination; the main controller is a control terminal and is electrically connected with an outgoing line side bus of a distribution transformer; and the phase converter is an execution terminal and is electrically connected with a user line and a user load of a three-phase branch through the anti-power-off electric appliance element combination. Relay current zero-crossing cutting and voltage zero-crossing input technologies are adopted, so that it is guaranteed that no arc exists at the moment of cutting and no inrush current exists at the moment of input, the service life of a relay is prolonged, and the operation reliability of the relay is improved; and a magnetic latching relay with a switching state feedback signal output endis adopted, so that the problem of interphase short circuit caused by improper execution of a switching action of the magnetic latching relay is avoided.

Provided is lateral pressure-type equipment special for cleaning a high-rise glass curtain wall. A rack 38 of the equipment is provided with trundles 2, guiding wheels 34, auxiliary wheels 19 and a balance weight water tank 5 and can move stably among the wall body of the glass curtain wall 33. A cleaning box 22 and a wind power box 25 are hoisted through a hoisting motor 39 and a steel wire ropewinding drum 6; the cleaning box 22 is internally provided with a water pump 48, a brush roller 31, a first-level scraping plate 32 and a second-level scraping plate 23, the wind power box 25 is internally provided with a fan motor 26 and a fan 24, and the equipment can tightly fit the surface of the glass curtain wall 33 to achieve rough cleaning and precise cleaning. Electric power is supplied to the cleaning box 22 and the wind power box 25 through a cable winding drum 15 and a cable 16. The cleaning equipment runs stably, supplies electric power and water constantly, conducts cleaning thoroughly without a dead angle and is applicable to cleaning of the high-rise glass curtain wall, and balance weights are flexible and easy to operate.

The invention relates to an energy storage-containing arc furnace energy-supply power system and a control method thereof. The system comprises a power grid access and measuring unit, a network-side variable flow unit, a direct current bus, an energy storage power control unit, a high power energy storage device, an inverter unit and a main controller. According to the method, the power supply of an arc furnace is kept stable when a power grid is abnormal, the impact on the power grid is reduced, and the problems that the power factor of power grid access points is low and three phases are imbalanced caused by the arc furnace are solved. When the power grid voltage flickers and power fails in a short time, the power can be uninterruptedly and stably supplied to the arc furnace, so that the furnace temperature is stabilized and the quality of metallurgical products is ensured; meanwhile, the adverse effects on the power grid caused by factors of power fluctuation and low power factor of the arc furnace can be reduced.

The invention provides a design method of a direct-current low-voltage self-power supply device of a driving system of a driving motor for an electric automobile, belonging to the application field of the electric automobiles. The direct-current low-voltage self-power supply device of the driving system of the driving motor for the electric automobile comprises a controller DC/DC converter, a vehicle-mounted direct-current low-voltage power supply detecting device, a control circuit and the like. The controller DC/DC converter is used for converting a direct-current high-voltage power supply of a driving circuit of the driving motor into a direct-current low-voltage power supply available for the control circuit; the vehicle-mounted direct-current low-voltage power supply detecting device is used for detecting whether a vehicle-mounted direct-current low-voltage power supply normally works or not; and the control circuit is used for controlling the state of the driving motor. When the vehicle-mounted direct-current low-voltage power supply is in fault, the controller DC/DC converter supplies the direct-current low-voltage power for the control circuit of the motor, and meanwhile, the vehicle-mounted direct-current low-voltage power supply detecting device sends out an early warning notice to the control circuit of the motor when detecting that the vehicle-mounted direct-current low-voltage power supply is in fault, thereby the control circuit controls the motor to stop.

The invention discloses an unmanned outdoor spectral irradiance meter system based on a GPRS (general packet radio service) remote wireless communication technology. The unmanned outdoor spectral irradiance meter system comprises a visible light to short wave infrared band spectral irradiance measurement system, a remote wireless communication system based on GPRS, an outdoor wind-solar power supply and an intelligent humidity monitoring system. The communication system disclosed by the invention realizes full-automatic remote wireless transmission by adopting a GPRS network communication technology, a short message parsing technology and an internet technology, so that a user can receive irradiance data of a far place in real time without going out, and working states of instruments in the place can be remotely controlled through the internet; a power supply system adopts the wind-solar complementary power supply, so that the long-time non-intermittent power supplying of the system is guaranteed; the system is also provided with the humidity monitoring system, so that the instruments can reliably work for a long time in the outdoor place under a changeable weather condition.

The invention discloses a high-reliability floating type offshore wind measurement mobile platform wind-solar storage DC power system and a control method, and belongs to the fields of ship and oceanengineering and new energy application. The system adopts an annular DC bus, and comprises a power generation system, a measurement system and a monitoring system. The power generation system comprises four identical wind-solar storage power generation devices which are respectively connected in parallel to a DC bus through solid-state circuit breakers, wind power generation units, photovoltaic power generation units and energy storage units of the wind-solar storage power generation devices; and the monitoring system comprises a local monitoring center and a satellite communication unit. According to the invention, the system employs the four identical wind-solar storage power generation devices, so when one or more power supply units break down or wind power generation and photovoltaic power generation are insufficient during normal work, the remaining systems can form a one-stage micro-grid or two-stage micro-grid structure through on-off control over a solid-state circuit breaker,and the high-reliability power supply of a platform power system is ensured.

The invention discloses an AC/DC power supply configuration structure and a flexible transformer substation. An integrated multi-port converter and a rectifier in the AC/DC power supply configurationstructure convert an external power supply into DC voltage sources with various voltage amplitudes, and the power supply diversity of the external power supply is improved; the AC/DC power supply configuration structure is connected with various external power supplies, and when a certain external power supply fails, the external power supply is normally operated to supply power to the branch circuit by controlling the on-off of the switch module, thereby ensuring the uninterrupted power supply of the power supply. The coordination control and energy management system of the flexible transformer substation collects the operation state of an AC/DC power supply configuration structure, the operation state of a power grid, the load of a data center and a local area network thereof, and functional station information. The power grid dispatching system timely adjusts the AC/DC power supply configuration structure and the function station operation state according to the information collected by the coordination control and energy management system, and achieves the optimal control of the power grid through the adjustment of the load of the data center and the local area network.

The invention provides a water-gas integrated online monitoring system and method. The water-gas integrated online monitoring system comprises a buoy unit, an anchoring unit and a data management center; the buoy unit is used for detecting water-gas multi-item monitoring index information and transmitting the multi-item monitoring index information to the data management center; the buoy unit comprises a buoy body, a power management module, a protection module, a sensor module and a wireless communication module; the buoy body is used for floating on the water surface; the data management center is used for receiving, processing and storing data transmitted by the buoy unit; a database interface implements automatic display update and storage; and unattended, continuous online water-gas integrated monitoring is achieved. The water-gas integrated online monitoring system provided by the invention can effectively utilize the light energy and the wind energy to ensure long-term water-gasobservation in a water area, so that the power supply can be still continuously provided in harsh environments, the maintenance is reduced, unattended operation is achieved, and the operation cost isgreatly reduced.

The invention discloses a safe power distribution cabinet, which comprises a vented box body, a front border and a front door, wherein the vented box body consists of a top plate, a bottom plate, a rear side plate, a left side plate and a right side plate; the front border and the front door are formed along the vented box body; the front door comprises a left side door and a right side door; the top of the top plate also comprises one layer of top cover; the bottom of the top cover is a plane; and the center of the top of the top cover is extruded. The power distribution cabinet is also provided with a safe circuit device, wherein the safe circuit device comprises an anti-electric-shock circuit and an anti-thunder circuit.

The invention provides a power supply system for a data center and a control method thereof. The power supply system for the data center comprises first standby power supply equipment, second standby power supply equipment, a first distribution unit, a second distribution unit, battery equipment and a switching unit, wherein the first distribution unit is connected with one end of the first standby power supply equipment, and the second distribution unit is connected with one end of the second standby power supply equipment; the other end of the first standby power supply equipment and the other end of the second standby power supply equipment are both connected to the battery equipment; and the switching unit is arranged between the other end of the first standby power supply equipment and the battery equipment and between the other end of the second standby power supply equipment and the battery equipment. According to the power supply system for the data center and the control method thereof, battery sharing is achieved, the situation that the number of standby single-side fault batteries is reduced is avoided, single-path fault tail end electric equipment in a multi-path redundant system does not sense faults, simple seamless switching is achieved by adopting direct current on a battery side, and power supply of the tail end equipment is not interrupted.

The embodiment of the invention provides a switching method and device for an island model and a grid-connected model of a microgrid, relates to the technical field of power transmission and distribution, and solves the problem that the system cannot reliably run during switching of the microgrid among different working modes. The switching method comprises the steps of receiving a grid-connectedinstruction; synchronizing voltage phase angles in the microgrid and a large power grid according to the grid-connected instruction, and inputting a first target angle value to grid connection; and switching the microgrid to the grid-connected mode from the island mode by a changeover switch when the voltage amplitude in the microgrid and the large power grid are synchronized, and resetting a PI controller in the grid-connected mode. The switching method is used for switching running modes of the microgrid.

The invention provides a power supply method used for emergency or short-time power supply in local power utilization areas, and relates to the fields of clean energy technology and distributed energy supply. The power supply method comprises the following steps that S1) the power supply state of an external electrical network is monitored in real time, and when the external electrical network is disconnected or fluctuates, a storage battery is used to supply power, and a direct carbon fuel battery is started; S2) after the direct carbon fuel battery is started, the direct carbon fuel battery is used to replace the storage battery to supply power to the local power utilization area; S3) when the external electrical network recovers, the external electrical network is responsible for supplying power to the local power utilization area, the direct carbon fuel cell starts a shutdown program, and needed electrical energy is provided by the external electrical network; and S4) the external electrical network is used to charge the storage battery, and the step S1 is repeated after charging is completed. According to the power supply method, characteristics of the direction carbon fuel cell are combined with those of the storage battery, requirements for the starting performance of a power supply in emergent power utilization can be met, and the requirement of long-term large-power power supply by power users can be also met.

The invention relates to a lamp battery box and a lighting lamp. The lamp battery box comprises a box cover, a box body and a battery, wherein the box cover and the box body are fastened to each other, and the battery is arranged in the box body. A first sealing gasket is arranged at the edge of the box cover contacting with the box body, a drainage hole used for draining out water accumulated in the box body is arranged at the bottom of the box body, the box cover is provided with a breather used for guaranteeing smoothness of air inside and outside of the battery box, and the joint of the breather and the box cover is sealed by a second sealing gasket. A lead connected with the battery is led out from the box cover, and the joint of the lead and the box cover is sealed by a third sealing gasket. Waterproof sealing measures are utilized at many positions of the lamp battery box, so that the integral waterproofing performance of the lamp battery box is guaranteed. When in use of the lamp battery box, the lighting lamp with waterproof rating reaching IP (international protection) 23, which can be moved portably, can be formed by assembling a lamp holder onto the lamp battery box, and accordingly, requirements for outdoor lighting in different environments can be met.

The invention discloses an electrodynamic force supply highway traffic system and an electrodynamic force acquisition method. The system comprises a road network power accumulation station network which comprises a live line (201), null lines (202) and a plurality of road network power accumulation stations. The live line (201) is erected over a road, the null lines (202) are erected over the roador laid on the road, and the road network power accumulation stations are connected through a road network power supply circuit, provides electrodynamic force for electric vehicles running on the road through the line (201) erected over a road and leads current out to the null lines (202) erected over the road or laid on the road. The electrodynamic force supply highway traffic system and the electrodynamic force acquisition method have advantages that power supply of common electric vehicles is realized, high-voltage safety power consumption of the electric vehicles is realized, automatic accessing and releasing of the electric vehicles are benefited, and the requirement of the vehicles running on expressways can be met.

The invention discloses a data center efficient power supply system. Energy storage circuits are equipped for all server nodes, parallel power supply is adopted for each server node to power the datacenter, in case of power failure, the power supply system of a data center server can be ensured to run continuously, and uninterrupted power supply of the data center is realized; in addition, a power conversion link of the data center efficient power supply system realizes the primary power conversion only through a module power supply circuit, therefore, compared with the power supply system inthe prior art, the data center efficient power supply system of the whole data center is simplified, safe and reliable, and the power supply efficiency of the system is also greatly improved.

The invention discloses a tunnel lighting device and relates to the technical field of lighting. The tunnel lighting device comprises a transformer and a lighting lamp which is in circuit connection with the transformer and is arranged in a tunnel. The lighting lamp is electrically connected with a storage battery. The storage battery is electrically connected with a solar cell panel and an electric quantity monitoring module. The electric quantity monitoring module is connected with a control module. The control module is electrically connected with the storage battery through a first relay and electrically connected with the transformer through a second relay. Compared with the prior art, the tunnel lighting device can be used for solving the problems of energy consumption and capital consumption for tunnel lighting.

The application discloses a lightning-protection power distribution cabinet, comprising a cabinet body and a lightning-protection power supply circuit. The lightning-protection power supply circuit comprises a lightning protection circuit, indication equipment and an output unit, wherein the input end of the lightning protection circuit is connected with a power supply system; the output end of the lightning protection circuit is connected with the output unit, and is used for removing a lightning surge voltage from the power supply system; the lightning protection circuit internally comprises a primary discharge unit, a secondary choke unit and a third clamping unit, which are sequentially connected with one another; the indication equipment is connected with the lightning protection circuit, and is used for displaying various phases of currents and voltages of each path in the lightning protection circuit; and the output end of the output unit is connected with equipment to be protected, and is used for supplying power to the equipment to be protected. The lightning-protection power distribution cabinet utilizes the lightning-protection power supply circuit inside the cabinet body to remove the lightning surge voltage from the power supply system in a three-level manner, thus avoiding the damage on the equipment to be protected, caused by the lightning surge voltage from the power supply system.