38results about How to "Improve overvoltage" patented technology

The invention belongs to the metallurgical field, and in particular relates to an environment-friendly high-efficient electrolytic selenium-free manganese metal additive and a preparation method for the same. The environment-friendly high-efficient electrolytic selenium-free manganese metal additive is characterized in that: the additive is prepared by raw materials of water-soluble polyacrylamides, animal glue, polyethylene glycol, boric acids and water. The content of various raw materials by weight percent is as follows: 5 to 10 percent of polyacrylamides; 8 to 15 percent of animal glue; 30 to 40 percent of polyethylene glycol; 3 to 5 percent of boric acids; and residual water. The sum of the content of various raw materials by weight percent is 100 percent. The additive is nontoxic and non-corrosive; volatilization and so on can not be generated during the electrolysis process; the operation is convenient and safe; and the environmental protection performance is good. Moreover, the additive is used for electrolytic manganese and is characterized by high current efficiency and good product quality of the electrolytic manganese.

Provided are a solid battery which can reduce overvoltage and a regeneration method thereof. The solid battery comprises: an anode capable of absorbing and releasing an alkali metal ion or alkaline earth metal ion; a solid electrolyte layer containing a solid electrolyte having ion conductivity and disposed in a manner to contact the anode; a cathode capable of releasing and absorbing the alkali metal ion or alkaline earth metal ion which moves between the anode and cathode; a heating device to heat the anode to a temperature at which it softens; and a fastening device capable of applying force to closely contact the solid electrolyte layer with the anode. The regeneration method comprises the steps of heating the anode to a temperature at which it softens, and compressing the softened anode, in a direction intersecting a face of the anode which contacts with the solid electrolyte layer.

An object of the present invention is to provide a carbonaceous molded body for a battery electrode having high charge/discharge capacity, high initial charge/discharge efficiency, and excellent cycle life. The aforementioned object can be achieved by a carbonaceous molded body for a battery electrode of the present invention, including: carbon fibers where lithium can be doped and dedoped; and a carbonaceous material; wherein the thickness is 1 mm or less, atomic ratio (H/C) between hydrogen atoms and carbon atoms based on elemental analysis is 0.1 or less, porosity determined from bulk density of the molded body and true density of butanol is from 25 to 80%, and volatile matter content is 5.0 wt. % or less.

The present invention provides an overvoltage protection method for backlight drive circuit of 2D/3D mode and a backlight drive circuit using the method. The method includes: providing a liquid crystal display, the liquid crystal display having a 2D mode and a 3D mode, the liquid crystal display including a backlight drive circuit; the backlight drive circuit using the first overvoltage protection voltage level as an overvoltage protection voltage level when the liquid crystal display is set in the 2D mode; and the backlight drive circuit using the second the overvoltage protection voltage level as an overvoltage protection voltage level when the liquid crystal display is set in the 3D mode, the second the overvoltage protection voltage level being greater than the first overvoltage protection voltage level. Different overvoltage protection voltage levels are provided for the 2D and 3D modes so as to alleviate impact on components by over voltage.

The invention discloses a DC charging pile with fault clearing function, A plug terminal is telescopically arranged on the charging gun head, A through hole is axially formed in the center of the cylinder of the plug end, a plurality of first channels are arranged on the periphery of the through hole, a pair of half cross-sectional bodies are movably arranged in the through hole, a plurality of second channels corresponding to the first channels are arranged on the periphery of the half cross-sectional bodies, and the first channels and the second channels are butted to form a conductive plughole for inserting a charging pin interface of an automobile. A half-conical cavity is axially formed in the cross section of the half-section body, a conical cylinder is telescopically arranged in the semi-conical cavity on the left and right sides, Semi-annular grooves are respectively arranged on the side walls of the left and right semi-conical cavities, an annular bump is correspondingly protruded from the outer periphery of the conical cylinder, the annular bump is confined in the semi-annular groove, the width of the semi-annular groove is larger than the width of the annular bump, andthe diameter is larger than the diameter of the annular bump. The invention solves the technical problem that the fault of the DC charging pile is not removed in time.

The invention relates to a sock, in particular for use during sports, said sock comprising cushioned sections. A ventilation channel (16), which is preferably positioned between at least two parallel cushioned sections (21), is situated on the dorsum of the foot (17).

The invention discloses a waterproof and ventilative outdoor power distribution box with a mobile function. The waterproof and ventilative outdoor power distribution box is characterized by comprising a box body, wherein a box door is arranged on the front side of the box body; a small ridge A-bracket box cover is arranged at the top of the box body; weather boards are arranged on two sides of the box cover; trough type air holes are formed between two sides of the box body and the weather boards; two wheels are arranged on each of two ends of the bottom of the box body; a wire inlet hole and a wire outlet hole are formed in the bottom of the box body; a disconnecting link and a breaker are arranged in the box body; a power inlet wire is sequentially connected with the disconnecting link and the breaker. The top cover of the power distribution box adopts a small ridge to exhaust in two ways and to ventilate from two sides; the weather boards are used for preventing rainwater from entering; the safety of electric control equipment can be effectively protected; over-voltage, under-voltage and faulted neutral line protection can be added on the basis of electric leakage and short circuit protection functions through improvement of the breaker; the power supply reliability and stability are increased.

The invention relates to a device (10) for sucking away the discharge during processing for a processing apparatus, particularly for a laser processing apparatus. The device includes a pump channel (15) for guiding the discharge, wherein the pump channel (15) is effectively connected with a tool (20) capable of generating low pressure. The at least one sectional part (21) of the pump channel (15) is arranged in the effective connection with a mechanism (25) for generating overpressure, and the mechanism (25) applies a pneumatic overpressure to the flow cross-section of the pump channel (15).

The invention relates to a constant current source device for driving a laser diode and a control method. A remote control interface is connected with an MCU through an RS232 interface, a current setting and feedback interface is connected with the MCU, a power interface is connected with a power module and a DCDC module, the MCU is connected with an MOS tube driving module, the MOS tube driving module is in driving connection with a BUCK circuit of the DCDC module, the BUCK circuit is connected with a laser diode interface, the voltage measuring circuit and the current measuring circuit are respectively connected with the ADC module and respectively connected with the MOS tube driving module, the temperature sensor is connected with the ADC module, and the MCU is connected with the ADC module. A constant current source driving device which is wide in self-adaptive working voltage, wide in working current range and high in efficiency is adopted to achieve driving which is easy to integrate, small in size, low in cost and low in heating value, the working voltage ranges from 5 V to 30 V, the maximum working current reaches 20 A, the requirement for most laser diodes is met, and the maximum working voltage and the maximum working current can be set.

The invention discloses a DC power distribution network energy router based on a PWM/diode hybrid rectification structure, and a control method for the DC power distribution network energy router. Theenergy router comprises a high-voltage side power transformation unit, a low-voltage side PWM/diode hybrid rectification unit, and a medium-high frequency three-phase AC transformer, and is used forachieving the interconnection of DC buses at different voltage levels in a DC power distribution network in a power distribution network. The low-voltage side PWM/diode hybrid rectification unit comprises a low-voltage side PWM rectification unit and a plurality of low-voltage side diode rectification units. The low-voltage side PWM rectification unit employs the AC/DC transformation topology based on a full-control device, and the low-voltage side diode rectification units employ the three-phase non-control rectification topology based on a diode non-control device. The medium-high frequencythree-phase AC transformer employs one-input multi-output coupling mode. The energy router can achieve the bidirectional transmission of electric energy, is simple and reliable in control, is strong in through-current capability, is small in number of used devices, and greatly reduces the cost. When the power of a load fluctuates, the power output can be adaptively adjusted.

The invention relates to a device for bending at least one glass pane (I), at least comprising a gravity bending mold (1), which has a supporting surface (2), which is suitable for arranging at least one glass pane (I) thereon, an upper shaping tool (3) arranged opposite the supporting surface (2), which upper shaping tool is suitable for producing an overpressure on the surface (O) of the at least one glass pane (I) arranged on the supporting surface (2) that faces away from the supporting surface (2), wherein the shaping tool (3) has a cover (8), which forms a cavity (5) open toward the gravity bending mold (1), and is equipped with a sealing lip (7), which is arranged on an edge segment (4) of the cover (8), for contacting the surface (O) of the at least one glass pane (I) that faces away from the supporting surface (2), and wherein the shaping tool (3) is equipped with means for introducing a gas into the cavity (5) in order to produce the overpressure.