549results about How to "Avoid short circuit conditions" patented technology

The present invention relates generally to capacitor cells and the utilization of separator materials that interact with one or more surfactants in such cells. More specifically, the present invention is related to capacitor cells that include separators that are impregnated with a surfactant or that absorb and / or interact with a surfactant that is included in an electrolyte placed within the capacitor cell.

The invention relates to a motor and a cooling fan provided with the same. The motor consists of a base, a stator, a rotor, a circuit board and a heat-conducting insulator. The base is provided with a cooling bottom board, the stator is arranged on the base, and the rotor is rotatably combined with the base and is opposite to the stator. The circuit board is combined with the base and is electrically connected with the stator. The heat-conducting insulator is arranged between the circuit board and the cooling bottom board and respectively connected with one surface of the circuit board and the cooling bottom board in a propping manner. The high heat conductivity and electric insulation properties of the heat-conducting insulator between the cooling bottom board and the circuit board are utilized, thus not only can the short circuit of the circuit board be avoided, but also the heat generated by the circuit board can be effectively radiated to the outside.

The invention discloses a reflective stripe for a solar cell component. The reflective stripe is elongated, a reflection structure is arranged on the reflective stripe which is provided with a soleplate made from an insulated or semi-conductor material, the reflection structure for reflecting sunlight and a metallic diaphragm layer; the reflection structure is a protrusion formed on the upper surface of the soleplate, the metallic diaphragm layer is formed on the upper surface of a reflection mechanism; and the reflective stripe is also provided with an insulation structure which can separate adjacent cell sheets at both sides of the reflective stripe in an insulation mode. The reflective stripe in the invention can favorably reflect sunlight to the cell sheets, improves the efficiency of the solar cell component, has favorable insulation performance, avoids short-circuit conditions possibly occurring between the cell sheets and ensures the safety performance of the cell component.

The present invention relates generally to capacitor cells and the utilization of enhanced separator materials in such cells. More specifically, the present invention is related to the utilization of track-etched materials as the separator materials in capacitor cells. Methods of making a capacitor cell having a track-etched separator material is also disclosed.

The present invention provides a method for manufacturing a sealed cell, capable of reducing labor and time for managing members of an insulated member and a down-lead body, preventing the down-lead body from contacting with an inner surface of a cell tank, and thinning the cell. An insertion throughhole (27) of the down-lead body (13) is cooperated in a matching pin (39) of a mold (35), the down-lead body is embedded between a pair of holding pins (41, 41) of the mold, and the down-lead body is mounted in an inner space of the mold. Then, a melting resin is injected into the inner space of the mold, such that the insulated member (11) covers the front and the back, the left and the right and the top of the down-lead body, such that the insulated member is integrated and formed on the down-lead body. Moreover, a negative terminal (12) is inserted in the throughhole (25) crossing a cover (3) in a mode of the intervention of the sealing member (10), the lower end part of the negative terminal is mounted with the down-lead body together with the insulated member, and the lower side of the down-lead body is connected with a cathode collector down-lead (9) extending from an electrode body (2).

The invention relates to the field of shipbuilding industry, in particular a ship propeller. The ship propeller includes a bottom plate, an underwater gear box, a rotary mechanism, a telescopic mechanism and a control system; A placing hole is arranged at that tail part of the bottom plate of the ship, the hollow rotating shaft penetrates the place hole, one end of the hollow rotating shaft located on the bottom plate of the ship is sequentially connected with the propulsion motor through a spline shaft and a linkage, and the other end of the hollow rotating shaft is connected with the gear ofthe underwater gear box, and the underwater gear box is provided with a propeller; The rotary mechanism is used for rotating the propeller, and the telescopic mechanism is used for moving the propeller up and down. The control system is used for automatically controlling the operation of the rotary mechanism and the telescopic mechanism. The ship propeller of the invention can automatically expand and contract the propeller up and down according to the water consumption of the ship, and can arbitrarily adjust the rotation angle of the ship.

Provided is a level shifting circuit capable of preventing a power device from a malfunction also when a dv / dt transient signal is supplied with time difference. A high-potential side power device driving circuit has a clock signal generation circuit generating the so-called internal clock signal by outputting a pulse in a constant cycle for driving NMOS transistors and an iterative pulse generation circuit monitoring the state of an external input signal in synchronization with an output signal of the clock signal generation circuit, receiving a pulsing input signal generated with reference to a ground potential and generating pulsing ON and OFF signals.

The invention relates to the technical field of micro-mechanical processing of quartz, and particularly relates to a processing method for surface electrodes of a three-dimensional quartz micro-mechanical structure. The processing method comprises the steps of cleaning the surface of a metal film of the three-dimensional quartz micro-mechanical structure, spraying glue on the cleaned surface of the metal film to obtain an photoetching adhesive layer, then exposing and developing the photoetching adhesive layer, and finally hardening the photoetching adhesive layer; and corroding the metal film with a chemical corrosion method by taking the photoetching adhesive layer as a mask, and then removing the photoetching adhesive layer to accomplish the processing of the surface electrodes of the three-dimensional micro-mechanical structure. According to the processing method, wafers of different sizes and shapes can be sprayed with glue, and meanwhile, the side wall with a large depth-to-width ratio of the three-dimensional quartz micro-mechanical structure can be uniformly coated with glue. Through an ultrasonic glue spray manner, the uniformity of the photoetching adhesive layer on the three-dimensional micro-mechanical structure can be improved. As an ultrasonic cleaning procedure is added to the developing step, the adhesion of the photoetching adhesive layer to substrate materials of the three-dimensional quartz micro-mechanical structure is lowered, and thus a short-circuit situation during the electrode processing is completely eradicated.

A CCFL power converter circuit is provided using a high-efficiency zero-voltage-switching technique that eliminates switching losses associated with the power MOSFETs. An optimal sweeping-frequency technique is used in the CCFL ignition by accounting for the parasitic capacitance in the resonant tank circuit. Additionally, the circuit is self-learning and is adapted to determine the optimum operating frequency for the circuit with a given load. An over-voltage protection circuit can also be provided to ensure that the circuit components are protected in the case of open-lamp condition.

The invention relates to a method for switching the phase lines of a three-phase circuit and capable of preventing inter-phase short-circuit and a phase change switch device, which belong to the field of transformation and distribution devices. A phase line switch and a self-resetting single-phase switch are arranged in the shell body of the phase change switch; when load switching needs to be carried out, first the self-resetting single-phase switch is controlled to be off, and the external power supply of the phase change switch device is cut off; then the moving contact of an electric rotation switch is rotated and a 'one-from-three' rotation switch method is adopted, so that the phase sequence of the phase line input end of a single-phase power supply is switched to specified phase lines; and finally the self-resetting single-phase switch to be on, and the external power supply of the phase change switch device is recovered. Because the 'one-from-more' rotation switch method is adopted, the connection with a load end is cut off when in switching, the phenomenon that two phase lines are short-circuited when the phase change switch fails to work is thoroughly overcome, the whole switching process is safe and reliable, and the safety of power supply is improved. The invention can be widely applied to the field of low-voltage power supply and the operation of power grids.

The invention belongs to the field of charging control technology, and provides an automatic charging control device and a charging method for an unmanned aerial vehicle. The automatic charging control device comprises a rechargeable undercarriage, a charging adapter and a power supply. The automatic charging control device is mainly and technologically characterized in that the undercarriage with a charging function is utilized; an electromechanical connector with polarity adaption capability is utilized; and through automatic control of a charging control board, an in-position charging technical solution for the battery of the unmanned aerial vehicle is realized. The automatic charging control device and the charging method can be widely applied on an unmanned aerial vehicle landing device or a charging station.

The invention discloses a package-free LED structure and a manufacturing method thereof. The package-free LED structure comprises a substrate having surface deposition of a circuit layer and at least one LED flip chip which is arranged on the substrate. The electrodes of the LED flip chips are connected with the circuit layer of the substrate through a soldering mode. A groove used for accommodating overflowing tin paste is arranged at the periphery of the tin soldering part. The structure of the substrate is optimized, and the groove is arranged at the periphery of the tin soldering part of the substrate for accommodating the overflowing molten tin paste so that the production yield rate in the packaging process of the flip chips can be effectively enhanced and the situation of short circuit of the LED can be avoided.

The invention discloses an intelligent clothes drying machine and method. The intelligent clothes drying machine comprises a main body, a fan, a heating device, a clothes hanger and a humidity detector. The main body is a columnar space defined by a side wall, an upper cover and a base plate. The clothes hanger is arranged in the main body and connected to the center of the upper cover of the main body through a connecting shaft, the inner side wall of the main body is provided with the humidity detector, two symmetric side walls of the main body are provided with two symmetric through holes, the heating device is arranged on the through hole in the inner side of the main body, and the fan is arranged on the through hole in the outer side of the main body. According to the intelligent clothes drying machine, the fan and the heating device are arranged on the side of the main body, and short-circuit conditions caused by water dripping from clothes are effectively avoided by combination with a partition and a flow guide plate. An exhaust fan can accelerate gas flow in the main body, a low-speed motor drives the clothes hanger to rotate, so that the clothes are in all-dimensional contact with hot air moving at a high speed, and drying efficiency is high.

The invention discloses a sound-light integrated self-induction anti-bird robot. The robot comprises an overhead track, a movable trolley, a polling robot and a control center, wherein the movable trolley is arranged on the overhead track, the polling robot is arranged on the movable trolley, and the control center is connected with the polling robot. A bird detecting module, a vision checking module, a bird dispelling module, a bird nest clearing module, a control module and a communication module are arranged on the polling robot, the bird nest clearing module comprises a bird nest picking mechanism and a bird nest storing mechanism, and the control module is in signal connection with the movable trolley, the bird detecting module, the vision checking module, the bird dispelling module, the bird nest clearing module and the communication module. Through the polling robot, birds on a power transmission line or birds on the way are dispelled, and it is avoided that the birds rest on poles and towers or surroundings, so that a power transmission network is damaged; the polling robot is provided with the bird nest picking mechanism, in this way, bird nests on the poles and powers or lines can be cleared away, and the safety of bird descendents when the birds have babies is protected.

A lithium ion battery comprises a shell, electrolyte, an isolating membrane, a positive plate and a negative plate, wherein the isolating membrane is arranged between the positive plate and the negative plate in a clamping way, electrolyte is filled among the positive plate, the negative plate and the isolating membrane, and the positive plate is formed by coating positive active material slurry on a graphite foil current collector. The graphite foil is used as a positive current collector material, so that burrs caused by adopting an aluminum foil can be avoided, and the safety performance is improved; and meanwhile, the heat conduction rate of the graphite foil is higher than that of the aluminum foil, and the heat resistance is lower than that of the aluminum foil, so that the bonding strength between the active material and the current collector can be improved, the contact bonding situation between the active material and the current collector can be improved, and the cycle life of the lithium ion battery under the high temperature and large-ratio charging-discharging situation can be prolonged.

The invention relates to a method for avoiding metal line short circuit in an OLED display device. The method comprises the steps that an inorganic layer is formed on a substrate; a patterned metal layer is formed on the inorganic layer; the patterned metal layer comprises more than two metal lines; a patterned organic layer is formed on the patterned metal layer; an island area with low height is between every two adjacent metal lines on the edge of the patterned organic layer; and an ITO layer is formed on the patterned organic layer. According to the invention, the island areas with low height are arranged on the edge of the organic layer, thus ITO parts deposited on the edge of the organic layer are deposited on the island areas; the ITO on the island areas can be completely etched and removed in a later lithography process; and the residual ITO on the edge of the organic layer is no longer continuous between two adjacent metal lines, thus the situation of short circuit of two adjacent metal lines, which is caused by the residual ITO, is avoided.

A method for manufacturing a light-emitting diode (LED) is disclosed. In the method, a substrate is firstly provided, in which a first conductivity type cladding layer, an active layer, a second conductivity type cladding layer, a superlattice contact layer and a transparent conductive oxide layer are stacked on the substrate in sequence. Next, an etching mask layer is formed on a portion of the transparent conductive oxide layer, in which the etching mask layer is an insulator. Then, a definition step is performed by using the etching mask layer to remove an exposed portion of the transparent conductive oxide layer, and the superlattice contact layer, the second conductivity type cladding layer and the active layer under the exposed portion of the transparent conductive oxide layer until the first conductivity type cladding layer is exposed. The etching mask layer is then removed. Subsequently, a first conductivity type electrode is formed on the exposed portion of the first conductivity type cladding layer, and a second conductivity type electrode is formed on the transparent conductive oxide layer.

The invention discloses an LED lamp and a circuit connecting method of the LED lamp. The LED lamp comprises a power supplying device and an LED light source module, the LED light source module comprises a metal substrate and an LED light source arranged on the metal substrate, the LED lamp further comprises a connecting board and a connecting pin, the connecting board is arranged on the metal substrate and is electrically connected with the metal substrate, one end of the connecting pin penetrates through the metal substrate and is welded to the connecting board, the other end of the connecting pin is fixedly connected with a power supplying device in a welding mode, and therefore the connecting pin is electrically connected with the power supplying device and the LED light source module. Compared with the prior art, according to the LED lamp and the circuit connecting method of the LED lamp, due to the fact that the connecting pin and the connecting board are connected with the power supplying device and the LED light source module and connecting welding points are arranged on the connecting board, false welding and cold joint caused by good heat dissipation performance of the metal substrate are avoided; in addition, the occurrence of short circuit due to the situation that conductive wires are broken caused by being scratched by the metal substrate can be avoided. The LED lamp is easy to weld and conductive wires to be welded are not needed to be fixed manually.

The invention relates to the technical field of heat dissipation structures, and discloses a heat dissipation waterproof structure and a set top box of the heat dissipation waterproof structure. The heat dissipation waterproof structure comprises an upper cover and a top cover, wherein the upper cover is provided with a ventilation window used for ventilation; the top cover is arranged above the ventilation window and is detachably connected with the upper cover through a connecting assembly; a heat dissipation interval used for heat dissipation and ventilation is formed between the upper cover and the top cover; the upper cover below the top cover is provided with heat dissipation holes and a waterproof assembly. The set top box comprises the heat dissipation waterproof structure. The heat dissipation waterproof structure is attractive in appearance, good in heat dissipation, good in waterproof effect, capable of being detached and convenient to maintain. The use reliability and safety of the set top box provided with the heat dissipation waterproof structure are improved.

The invention provides a connection structure of a battery pack case and an individual lithium battery. The connection structure comprises a battery support, insulating plates and battery trays. A plurality of individual lithium batteries uniform in electrode orientation are radially abreast arrayed and fixed between an upper battery supporting frame and a lower battery supporting frame and form asquare battery block along with the battery supporting frame. Multiple battery blocks are radially abreast arrayed between the two insulating plates in horizontal arrangement vertically and form a square battery pack along with the insulating plates, and the multiple battery blocks are serially connected and then connected between a main positive connector and a main negative connector of the battery pack. An inner cavity of the battery pack case is partitioned into a plurality of battery chambers by partition plates horizontally put in the battery pack case, and the battery trays are fixedlyconnected to the bottom surfaces of the battery chambers. A great quantity of individual lithium batteries can be contained in limited battery pack space, the problem of short circuit in the batterypack due to shedding of the individual lithium batteries in vibration of an electric automobile is effectively prevented, and battery pack reliability is improved.

The invention discloses a short-circuit-proof restorable fuse, which comprises an insulating shell with a square cavity inside. The two ends of the insulating shell are fixedly connected with a firstbinding post and a second binding post respectively. The inside of the insulating shell is fixedly connected with a partition plate. The partition plate and the inner wall of the insulating shell jointly seal and are connected in a sliding manner with a first piston plate and a second piston plate. When the current is too high due to the short circuit danger in the circuit, the heat generated by asecond resistance wire is much more than that of a first resistance wire, so that the air pressure on one side of the second resistance wire is higher than that on the other side. A rotating plate ispushed to rotate to make the air on one side of the second resistance wire flow to the other side, and the two piston plates are pushed to move to achieve a circuit breaking effect. After the whole device is cooled, a conductive column can not resume electrical connection with a third binding post, so that the occurrence of short circuit again is avoided. The staff should check whether there is ashort circuit before manually replacing the fuse.

The invention provides a portable testing device of electric automobile charging equipment. The portable testing device comprises a box body, a battery charging base, cables, conversion terminals, a test circuit air switch KK1, a control guiding air switch KK2, a control unit, a man-machine interaction unit and a data acquisition unit, wherein the battery charging base, the cables, the conversion terminals, the test circuit air switch KK1, the control guiding air switch KK2, the control unit, the man-machine interaction unit and the data acquisition unit are arranged inside the box body. A charging plug of tested charging equipment is connected with the battery charging base, and adjustable loads are connected with the conversion terminals. The battery charging base and the conversion terminals are connected through the cables. The test circuit air switch comprises two air switches, wherein one air switch is connected with a connection terminal DC+ of the battery charging base and a corresponding conversion terminal, and the other air switch is connected with a connection terminal DC- of the battery charging base and a corresponding conversion terminal. The control guiding air switch is an air switch which is connected with a connection terminal S+ and a connection terminal S- of the battery charging base. When the testing device is used for testing the charging equipment, the charging equipment is directly connected with the outside through the charging plug arranged on the charging equipment self, and a plurality of connection terminals included in the charging plug do not need to be connected with the outside respectively.

Disclosed is manufacturing method of a shallow groove structure, which includes firstly providing a substrate with a formed patterned mask layer which is provided with an opening, then forming a gap wall on the lateral wall of the patterned mask layer, the gap wall has an obtuse angle between the lateral wall on the opening side and the upper surface of the patterned mask layer, and then, using the patterned mask layer and the gap wall as masks, and forming a groove in the substrate, afterward, filling a dielectric layer in the groove, and finally removing the patterned mask layer and the gap wall.

The invention discloses a stirring bubble trap. The stirring bubble trap comprises a shell and a stirring mechanism, wherein the stirring mechanism comprises a driving part, a hollow stirring shaft and a stirring paddle; a propeller is fixedly connected with the bottom end of the stirring shaft, and a low-pressure suction filtering device is arranged inside; a vibration device is arranged in eachstirring paddle and comprises a holding tank, a vibration piece and a vibration driving piece, the vibrating device is arranged on the stirring shaft, so that bubbles in slurry are effectively discharged, bubbles in the slurry are sucked out by the low-pressure suction filtering device, the bubble trap effect is better, and fired porcelain has higher hardness and strength; by arranging the propeller at the bottom, the slurry at the bottom is lifted up, prevented from settling, and is more fully contacted with the low-pressure suction filtering device while being more fully stirred and vibrated, the stirring effect is better, the obtained slurry is more delicate, the bubble trap efficiency is improved, cracking is less likely to occur, and the cracking rate is reduced.

The invention discloses an insulated framework, which comprises a first insulated framework and a second insulated framework arranged at the two ends of a motor stator core respectively. The first insulated framework is provided with at least two line incoming ports / line outgoing ports in the place corresponding to each stator tooth of the stator core; the outer side of the first insulated framework is provided with layered line passing grooves; and the line passing grooves run through the line incoming ports / line outgoing ports. According to the insulated framework, the layered line passing grooves can provide non-crossed winding paths for phase lines, so that the case of intercrossing of the phase lines does not occur, and the case of short circuit between the phase lines can be effectively prevented. The invention also provides a stator having the insulated framework and a stator assembly method.

The invention relates to a production technology of an electrical core of a lithium ion battery, and belongs to the technical field of lithium ion batteries. The technology comprises the following steps of packaging in which the electrical core is packaged; pre-hot-pressing in which the electrical core is placed in a hot pressing device and pre-hot-pressing is carried out, so that a hot melt adhesive of the electrical core is bonded to a plastic aluminum film; baking in which the electrical core is baked; liquid injecting in which a liquid is injected to the electrical core; and standing in which the electrical core is kept standing. Compared with the prior art, the pre-hot-pressing step is set, so that the electrical core is avoided from the phenomenon that a bare electrical core cannot be bonded to the plastic aluminum film in the standing step, the bare electrical core is prevented from playing the plastic aluminum film in the falling-off process, a diaphragm of the bare electricalcore is avoided from being folded and causing short circuit of the battery, and the safety of the lithium ion battery is improved.

The invention relates to the field of communication, in particular to a movable energy-saving communication machine room. The movable energy-saving communication machine room comprises a base frame and a communication machine room body; openings are symmetrically formed in the left and right sides of the bottom of the base frame; electric hydraulic telescopic rods are arranged on the left and right sides of the top of an inner cavity of the base frame correspondingly; a fixing plate is arranged at the bottoms of the electric hydraulic telescopic rods, and idler wheels are arranged on the leftand right sides of the bottom of the fixing plate correspondingly and penetrate through the openings; a groove is formed in the top of the base frame, and damping mechanisms are evenly arranged in thegroove; a supporting plate is arranged at the tops of the damping mechanisms; and limiting bolts are arranged at the four corners of the top of the supporting plate, and the lower ends of the limiting bolts penetrate through the supporting plate to be fixedly connected with the base frame. According to the movable energy-saving communication machine room, the design is novel, using is convenient,moving and fixing in the using process are facilitated, a solar power generation panel at the top of the machine room can further be automatically cleared, the photoelectric conversion efficiency ofthe solar power generation panel is improved, and the movable energy-saving communication machine room is suitable for being used and popularized.