6502results about How to "Avoid short circuit" patented technology

The invention provides a power-dissipation-free and energy-saving type start protector of a single phase AC motor and belongs to the technical field of refrigeration compressors. The power-dissipation-free and energy-saving type start protector comprises a shell, a shell cover, an overload protector, a power-dissipation-free starter and an external terminal mechanism. The shell is provided with an overload protector seat, a power-dissipation-free starter accommodation cavity, an external terminal mechanism cavity and a start controller accommodation cavity. The shell cover is provided with a first three-terminal jack and a second three-terminal jack. The overload protector is arranged in an overload protector accommodation cavity. The power-dissipation-free starter comprises a power-dissipation-free starter body and a start controller. The external terminal mechanism is matched with the external terminal mechanism cavity. The start protector is characterized in that the external terminal mechanism cavity comprises a first insertion cavity, a second insertion cavity and a third insertion cavity, the second insertion cavity is formed in the left side of the shell, and the bottom wall of the second insertion cavity is provided with a second shell insertion groove; the first insertion cavity and the third insertion cavity are formed in the right side of the shell, a first shell insertion groove is formed in the bottom wall of the first insertion cavity, and a third shell insertion groove is formed in the bottom wall of the third insertion cavity; the external terminal mechanism comprises a first insertion piece and a second insertion piece, the first insertion piece is matched with the second shell insertion groove in an inserted mode, and the second insertion piece is matched with the first shell insertion groove in an inserted mode.

The invention discloses a singlechip-based induction motor variable frequency speed regulation control system. The system comprises a main circuit, an auxiliary power circuit, an inverter circuit, a control part, an over-current protection circuit, a rotation speed detection circuit and other peripheral circuits. A 16-bit high-performance signal controller dsPIC30F4011 which is produced by the Microchip Company is used as a control core by the system to perform speed regulation based on vector control motor excitation. A digital signal controller dsPIC30F4011 of the America Microchip Technology Company is used as a chip special for motor control, a digital signal processor (DSP) inner core is embedded, and the chip has quick data processing capacity and is provided with abundant input and output equipment and interface circuits; an intelligent power module (IPM) IRAMSIOUP 60A of the IR Company is an inverter switching device, so that the variable frequency speed regulation control system of an asynchronous motor is constructed; and the system has the characteristics that the system is simple to drive and easy to realize.

The invention discloses a lithium ion battery composite diaphragm and a preparation method and an application thereof, belonging to the technical field of lithium ion batteries. The composite diaphragm comprises a polyolefin microporous membrane, a polymer microsphere based coating on one side surface of the polyolefin microporous membrane, and an inorganic ceramic-based coating on the other side surface of the polyolefin microporous membrane. The lithium ion battery composite diaphragm has good air permeability, liquid retaining capability and high-temperature resistance and can remarkably improve the security and the circulation property of the battery. The melting point or softening point of the polymer microsphere-based coating in the composite diaphragm is 90-140 DEG C, and when the temperature of the battery is increased, the polymer microsphere based coating is molten or swelled within a short time, then the apertures of the polyolefin microporous membrane are blocked rapidly, the thermal turn-off effect of the diaphragm is achieved, a lithium ion conveying channel is cut off, and short circuit inside the battery is prevented; meanwhile as ceramic grains inside the inorganic ceramic-based coating have the high-temperature resistance property, the polyolefin microporous membrane is effectively prevented from shrinkage, and the situation that positive and negative films directly come into contact to cause short circuit of the battery.

The invention relates to a method for manufacturing a three-dimensional flow enclosed-type impeller inter-impeller passage and a special clamp thereof. A specially designed and manufactured molding or quasi-molding tool cathode is used for numerical control electrolytic processing to remove most remainder, then a specially designed and manufactured molding or quasi-molding tool electrode is used for numerical control electric spark precision processing to achieve the design requirement, thereby the three-dimensional flow enclosed-type impeller inter-impeller passage that can not be processed resulting from interference of numerical control milling cutter and undercutting can be manufactured, besides, the method has the technical and economical characteristics of high precision and efficiency, and low cost compared with the prior three manufacturing methods of integral casting, divided processing rewelding and numerical control milling.

The invention provides an infrared receiver and a manufacturing method thereof. A metallic reflecting layer, a dielectric layer, a sacrifice layer, a sensitive material detecting layer and a metallic electrode are precipitated on a silicon bulk of the infrared receiver in sequence. The metallic reflecting layer is provided with a metallic reflection pattern. The height of the dielectric layer and the height of the metallic reflecting layer are the same. The invention also provides the manufacturing method of the infrared receiver, comprising the following steps: the metallic reflecting layer is formed on the silicon bulk and patterning is carried out on the metallic reflecting layer; the dielectric layer is formed on the metallic reflecting layer and planarization is carried out on the dielectric layer; medium is etched and reserved on the surface of a metallic layer, and the height of the dielectric layer and the height of the metallic reflecting layer are confirmed to be the same; the sacrifice layer is precipitated; and a microbridge infrared absorption structure is fabricated.

The invention relates to the new SO2 absorption device with three function areas, namely deamination zone, desulfuration zone and oxidization zone. It has purification air exhaust at the top of the SO2 absorption device, top of the inside of the tower composed of water and liquid separator of the flush water distributor, deamination circulation absorbing distributor connected to its inlet under the air and liquid separation component, under the deamination zone set with desulfuration circulation absorbing outlet connected liquid absorbing distributor, under which set the desulfuration zone, with absorbent liquid overflow outlet on the tower, and oxidization crystallization zone under the overflow outlet. It is low in investment, small in energy consumption, strong in gas treatment ability, high in efficiency, applicable for mass mode industrial application.

The invention relates to a non-resistance pressure balance anti-resistance device of heat pump of ground water, and relative system, wherein the outer frame (1) of anti-resistance device has external water inlet (6) and external water outlet (7); the rotation filter cylinder (3) is inside the outer frame (1); the rotation filter cylinder (3) is divided into internal water inlet area (4-1) and internal water outlet area (4-2); the internal water inlet area (4-1) is connected to the internal water inlet area outlet (8) and the internal water outlet area (4-2) is connected to the internal water outlet area inlet (9). The invention has stable water pressure and stable flux, with small size and low cost.

The invention discloses an adjustable coaxial laser nozzle for sending powder, comprising a laser head, a protection lens, a water-cooling sleeve for the protection lens and a column laser cavity arranged on the upper part, a coaxial conical laser cavity which is formed by the inner layer of a laser sleeve and arranged in the middle part, wherein a powder cavity, a secondary external protective cavity and an external water-cooling cavity are arranged on the lower part of the external part of the laser sleeve; the powder cavity is formed between the laser sleeve and a power cavity sleeve screwed together; the secondary external protective cavity is formed between the powder cavity and a protective air casing screwed together; the powder cavity and the protective sir casing are screwed together and adjustable between 1mm to 3mm; 4 to 6 power transmitting pipes and 4 to 6 air tubes are respectively positioned around the top parts of the cones of the powder cavity and the protective air cavity. The adjustable coaxial laser nozzle for sending powder has the advantages that the focus length of the focus lamp fit for the coaxial powder-sending nozzle is between 100mm to 300mm, which ensures convenient assembly and disassembly, even velocity, flexible adjustment of the powder converge diameter, convenient changeable lower coaxial conical parts (the powder cavity, the air casing and the water cavity).

The invention relates to a flexible tubular solid liquid processor, with filter, heat exchange and thermal extraction functions, wherein the filter element at least comprises one flexible tubular membrane unit, upper flange room and lower flange room; the hydraulic extracting system comprises pressure container, extract pump and tubes; the material liquid of container can be filtered by the tubular filter membrane of membrane unit, and said material liquid can be used as work medium to extract the concentrated material liquid in the filter room of membrane unit and discharge filter slag; the pressure container or the filter room of membrane unit can be filled with medium to exchange heat, to realize thermal filter or extraction; the filter element is arranged on the bearing base inside the pressure container; the filter rotator can rotate the filter element to realize cross-flow filter; and the invention can be arranged with gas or water reverse tube and vacuum filter tube; the slag discharge system comprises slag discharger or tubular inner/outer membrane scraper, or vibration slag discharger, or compression slag discharger.

The invention discloses a packaging structure and a packaging method for a fingerprint recognition chip. The packaging structure comprises a substrate, a sensing chip, a plurality of wires and a plastic package layer. The substrate is provided with a first surface, and the first surface of the substrate is provided with a first welding pad layer. The sensing chip is located on the first surface of the substrate and provided with a first surface and a second surface, the second surface of the sensing chip is located on the first surface of the substrate, the first surface of the sensing chip is provided with a sensing area and a peripheral area, and the surface of the portion, in the peripheral area, of the sensing chip is provided with a second welding pad layer. The two ends of the wires are electrically connected with the first welding pad layer and the second welding pad layer respectively, the wires have top points with the maximum distance to the surface of the substrate, and a first distance is reserved between the top points and the first surface of the sensing chip. The plastic package layer is located on the surface of the substrate and the surface of the sensing chip and surrounds the wires and the sensing chip, and a second distance is reserved between the surface of the plastic package layer and the first surface of the sensing chip and is larger than the first distance. According to the packaging structure, the requirement for the sensitivity of the sensing chip is lowered, and application is wider.

The invention relates to a water-based zinc-manganese single flow battery; a positive electrode active material is an oxide of manganese, a metal composite oxide, a metal oxide or a carbon material, a negative electrode is a zinc electrode, an electrolyte solution is a nearly neutral aqueous solution containing a zinc salt and a manganese salt, positive electrode active ions and negative electrode active ions can coexist in one electrolyte solution, and an ion exchange membrane is not required for separating the positive electrode and the negative electrode; in processes of charging and discharging, the electrolyte solution constantly flows between an electrolyte solution storage tank and an electric pile through a pipeline under pushing of a liquid pump. During charging, zinc ions are deposited onto a negative electrode current collector from the electrolyte solution, the zinc ions and manganese ions are co-embedded into the positive electrode active substance at the same time, and the manganese ions are subjected to oxidation deposition; during discharging, the negative electrode deposited zinc is dissolved into the electrolyte solution, and the positive electrode manganese oxide is partially reduced and dissolved and is extricated to the electrolyte solution with the zinc ions simultaneously. The battery has the outstanding characteristics of simple manufacture, relatively high specific energy and specific power, low cost, long cycle life, environmental friendly and the like, and is widely applied in electric power, transportation, electronics and other fields.

The invention relates to the technical field of connectors, in particular to a manufacturing method of a USB connector with a double-face inserting function. The method includes the following steps that firstly, first injection molding of an upper terminal is carried out; secondly, a lower terminal and the upper terminal subjected to first inject molding are subjected to laser processing together; thirdly, a conducting terminal subjected to laser processing is subjected to second injection molding. The upper terminal and the lower terminal are processed in a twice injection molding mode, the short-circuit phenomenon possibly happening in the first injection molding process is avoided, and the possibility of generating defective products is effectively reduced. The USB connector manufactured according to the method can be freely inserted into equipment without considering the positive direction and reverse direction, can be easily recognized by the equipment and is very convenient to use and effectively prevents connectors from being damaged in the insertion process.

The invention discloses a lithium ion liquid flow battery, belonging to a chemical energy storage battery technology field. A fixed electrode layer is arranged between an electrode reaction chamber and a diaphragm of the lithium ion liquid flow battery of the invention, thereby avoiding the direct contact between the diaphragm and a flowing electrode suspension liquid, effectively avoiding internal short circuit of the battery, and raising safety performance and work efficiency of the battery.

The present invention addresses the problem of providing: a bipolar all-solid-state battery wherein breakage of a collector of a bipolar electrode is prevented, thereby suitably preventing the occurrence of a short circuit; and a method for manufacturing the bipolar all-solid-state battery. The present invention solves the above-described problem by providing a bipolar all-solid-state battery which comprises: a bipolar electrode that comprises a collector and an electrode active material layer which is composed of a positive electrode active material layer that is formed on one surface of the collector and contains a positive electrode active material and a negative electrode active material layer that is formed on the other surface of the collector and contains a negative electrode active material; and a solid electrolyte layer that contains a solid electrolyte, in said bipolar all-solid-state battery, a plurality of the bipolar electrodes being laminated with the solid electrolyte layer interposed between each two of the bipolar electrodes. The bipolar all-solid-state battery is characterized in that the electrode active material layer is formed inside the end portions of the collector and a reinforcing layer, which is formed on the surface of the collector, is arranged between each end portion of the electrode active material layer and the surface of the collector.

The invention provides a manufacturing method of a TFT (Thin Film Transistor) substrate structure. According to the manufacturing method of the TFT substrate structure, via holes and a groove are formed in a planarization layer through single exposure by utilizing a halftone photomask, and half-exposure is realized through half-light-transmitting patterns on the halftone photomask; the groove with smaller depth is formed in the planarization layer of a fan-out area, so that the slope of the groove in the planarization layer of the fan-out area is decreased, the phenomenon of residue of a transparent conductive layer at corners of the groove caused by non-thorough photoresist exposure at the corners of the groove during photoresist exposure developing is avoided, and the phenomenon of short circuit between metal lines of the fan-out area is further avoided; meanwhile, the aperture ratio of an effective display area is not influenced, and the display quality of a liquid crystal display panel is greatly improved; moreover, by widening the groove in the planarization layer of the fan-out area, the phenomenon of reduction of an adhesion force of a frame sealing adhesive caused by decrease of the slope of the groove and reduction of the depth of the groove is avoided, and the adhesion property of the frame sealing adhesive in the liquid crystal display panel is further protected from being influenced.

The invention discloses an energy-saving type single-phase alternating current machine starting protector, and belongs to the technical field of refrigerating compressor. The energy-saving type single-phase alternating current machine starting protector comprises a shell, a single-phase alternating current machine starter, a single-phase alternating current machine protector and a shell cover; a positive temperature coefficient thermistor cavity and a single-phase alternating current machine protector cavity are formed in a shell cavity; the single-phase alternating current machine starter comprises a positive temperature coefficient thermistor, a first pin and a second pin; the single-phase alternating current machine protector is arranged in the single-phase alternating current machine protector cavity; the shell cover is matched with the shell. The energy-saving type single-phase alternating current machine starting protector is characterized in that a plug-in piece is extended from a reed of the first pin, and a plug-in-piece hole, a first pin hole, a second pin hole and a protector pin hole are formed in the shell; a pair of bottom-wall top embossments are formed in the cavity bottom wall of the positive temperature coefficient thermistor cavity, side-wall top embossments are formed in the side cavity walls and the rear cavity wall, the lower portion of the positive temperature coefficient thermistor is supported by the pair of bottom-wall top embossments, the front side of the positive temperature coefficient thermistor is contacted with the front cavity wall top embossments, and the rear side of the positive temperature coefficient thermistor is contacted with the rear cavity wall top embossments. The energy-saving type single-phase alternating current machine starting protector has the advantages that the energy-saving effect is good, the size is small, and the weight is light; the installation is convenient; a mold structure is simplified; electric short-circuit is prevented; the assembling efficiency is high.

The invention discloses a non-woven fabric based multi-layer composite diaphragm for a lithium ion battery and a preparation method of the multi-layer composite diaphragm. The non-woven fabric based multi-layer composite diaphragm comprises a non-woven fabric base material, an intermediate thermoplastic material coating and an outer-layer ceramic coating. The preparation method comprises the following steps of (1) mixing and uniformly stirring thermoplastic material particles, a binding agent and a solvent to form a mixed emulsion 1, and mixing and uniformly stirring inorganic particles, the binding agent and the solvent to form a mixed emulsion 2; and (2) uniformly applying the mixed emulsion 1 on one surface of the non-woven fabric base material, drying the mixed emulsion 1 to form the thermoplastic material coating, applying the mixed emulsion 2 on the thermoplastic material coating, drying the mixed emulsion 2 to form a ceramic coating, and rolling the ceramic coating to prepare a three-layer composite diaphragm. The three-layer composite diaphragm prepared according to the method has high-temperature obturator performance, favorable liquid absorption capability and mechanical property.

The invention discloses an energy-saving integrated type single-phase alternating current motor protection device and belongs to the technical field of refrigeration compressors. The energy-saving integrated type single-phase alternating current motor protection device comprises a shell, a single-phase alternating current motor starter, a single-phase alternating current motor protector and a shell cover. A positive temperature coefficient thermistor cavity and a single-phase alternating current motor protector cavity are formed inside a shell cavity in an enclosed mode. The single-phase alternating current motor starter comprises a positive temperature coefficient thermistor, a first pin and a second pin, a first pin transition sheet and a second pin transition sheet extend from the first pin and the second pin respectively, and a first pin reed and a second pin reed are arranged on the first pin transition sheet and the second pin transition sheet respectively. The single-phase alternating current motor protector is arranged inside the single-phase alternating current motor protector cavity. The shell cover is matched with the shell and is provided with a grounding pin, a pin N and a pin L. The energy-saving integrated type single-phase alternating current motor protection device is characterized in that a pair of bottom wall protrusions are formed on the bottom wall of the positive temperature coefficient thermistor cavity, and the front wall and the back wall of the positive temperature coefficient thermistor cavity are both provided with side wall protrusions. The energy-saving integrated type single-phase alternating current motor protection device is good in energy-saving effect, small in size, light in weight, convenient and quick to install, simplified in structure and capable of preventing electrical short circuits, and guarantees the stability and reliability standards of the pins.

Multiple-refrigeration Middle-delivery aerial condenser belongs to thermodynamic equipment technology domain. It composes of multi stages, and every stage is connected by the channels; every stage has two flow stages in which the steam floats to opposite direction; the air input is connected with the first channel , and the first channel is connected with the second channel by a row of parallel distribution heat exchange tube of the first stage; the second channel is connected with the heat exchange tube of next stage; apostrophe ,until get to the last channel; there are fins set out of the heat exchange tube; the shell is set out of the heat exchange tube and fins. The steam is put into the heat exchange tube of the first stage to refrigerate through the steam input and the first channel, and the air-liquid mixture flows into channel, and then the liquid and the air are separated; the steam gets into the heat exchange tube of next stage. This invention is suitable for large power engineering refrigeration, and it has efficient condensation capacity and large coefficient of heat transmission; the heat transfer area of the equipment is made use of sufficiently and efficiently; the fabric is flexible and smart, the applicability of the space is high.

The invention relates to the technical field of lithium batteries and in particular relates to a composite negative electrode of a solid-state lithium battery and a preparation method of the compositenegative electrode. The composite negative electrode of the solid-state lithium battery comprises a solid-state electrolyte thin film layer and a lithium negative electrode layer, wherein the lithiumnegative electrode layer comprises a lithium metal negative electrode material; the lithium metal negative electrode material is combined on the solid-state electrolyte thin film layer at a molten state to form the lithium negative electrode layer. The lithium metal negative electrode material is combined on the solid-state electrolyte thin film layer at the molten state to form the lithium negative electrode layer; the wetting performance between the lithium negative electrode layer and the solid-state electrolyte thin film layer can be improved very well and the formation of lithium dendritic crystals is inhibited very well; the safety performance of the lithium battery with a negative electrode structure is improved; meanwhile, the interface impedance between the lithium negative electrode layer and the solid-state electrolyte thin film layer is reduced very well, the migration rate of conductive ions between the lithium negative electrode layer and the solid-state electrolyte thinfilm layer is improved and the conductivity of the lithium negative electrode layer is improved.