257results about How to "Avoid short circuit" patented technology

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 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 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 discloses a power connection device. The power connection device comprises a power connection base and a power connection plug, wherein the power connection base is fixedly arranged in a wall body; the power connection plug is connected with equipment; the power connection base comprises an insertion slot of which an opening faces a front end, and power connection slots which are arranged in two side walls of the insertion slot symmetrically; back ends of the power connection slots are further provided with longitudinal sliding slots; inner sides of the longitudinal sliding slots are provided with through slots which communicate with the insertion slot; baffle plates are arranged in the longitudinal sliding slots in a sliding way; mandrels are arranged in the through slots in a sliding way; outer side ends of the mandrels are fixedly connected with back ends of the baffle plates; inner side ends of the mandrels extend into the insertion slot; elastic parts are fixedly arranged in back end walls of the longitudinal sliding slots; front ends of the elastic parts are fixedly connected with back end walls of the baffle plates; and the conductive elastic sheets are arranged in the power connection slots.

The purpose of the present invention is to suppress the occurrence of shavings produced by interference of a contact probe with a guide plate. [Solution] An electrical contact provided with: a contact part (2) having a layered structured in which an intermediate metal layer (12) is sandwiched by outer-side metals layers (11, 13), and used for making contact with an object to be inspected; an elastic deformation part (4) for elastically deforming by compressive force in the lengthwise direction so as to bend in a bending direction (N) set in advance; and a distal end part (3) formed between the contact part (2) and the elastic deformation part (4) and supported by a through-hole (121) in a guide plate (120) so that the contact part (2) is able to move in the lengthwise direction. The side surfaces of the distal end part (3) formed in the bending direction (N) of the elastic deformation part (4) and the direction (N') opposite thereto are composed of the three metal layers (11 to 13), and said side surfaces are configured so that the intermediate metal layer (12) protrudes more greatly than the outer-side metal layers (11, 13).

The invention discloses lead frame and packaging structure forming methods. The packaging structure forming method comprises the following steps: a lead frame is provided, wherein the lead frame comprises a first surface and a second surface which is opposite to the first surface, the lead frame is provided with a plurality of bearing units which are arranged in a matrix manner and medium-strength ribs for fixing the bearing units, each bearing unit comprises a plurality of discrete pins, and a first opening is formed between every two neighboring pins; a first plastic packaged layer for filling the first openings is formed; an insulating layer is formed on the first surface of the lead frame and the surface of the first plastic packaged layer, wherein second openings for exposing surfaces of the pins are formed in the insulating layer; a plurality of semiconductor chips are provided, wherein each semiconductor chip is provided with a plurality of bonding pads, and metal bumps are formed on the bonding pads; and the plurality of semiconductor chip are arranged on the lead frame in a flipping manner, and the metal bumps on the semiconductor chips and the surfaces of the pins exposed out from the second openings are soldered together to form a plurality of packaging units which are arranged in a matrix manner. According to the method of the invention, the packaging efficiency can be improved.

The invention discloses a preparation method of a high-performance composite diaphragm. The preparation method comprises the following steps of 1, smearing a layer of processing liquid on one side of a dry-method unilaterally stretched polyolefin diaphragm; 2, dissolving binary organic anhydride and organic diamine in a polarity aprotic solvent to obtain polyimide, and re-dissolving the polyimide in the polar aprotic solvent to obtain a spinning crude solution; 3, spraying the spinning crude solution on the polyolefin diaphragm processed in the step 1 by utilizing an electrostatic spinning method to form a primary polymer composite diaphragm with an oriented nano polyimide fiber layer; and 4, processing the primary polymer composite diaphragm obtained in the step 3 in the hot air of 50 to 100 DEG C for 1 hour to 12 hours to be dried, and after-treating (such as hot-pressing for shaping) the composite diaphragm to obtain the polymer composite diaphragm. The invention also discloses a composite diaphragm prepared by utilizing the preparation method. The prepared composite diaphragm has the advantages that the strength and safety of the dry-method unilaterally stretched polyolefin diaphragm can be effectively improved.

A portable information terminal such as mobile communication terminal having an earphone jack for sound input/output, PHS (personal handy-phone system), PDA (personal digital assistants), and mobile personal computer; a digital camera to connect to the portable information terminal, a digital camera connected portable terminal device comprising the portable information terminal and the digital camera, as well as to a method of controlling such a portable information terminal. The existing earphone jack provided on portable information terminals can be adopted as the plug for the digital camera or insertion plug for the connector of USB cable, so that the cost can be lowered and the system made compact to provide a highly flexible portable information terminal and a digital camera for use with the portable information terminal.

The invention discloses a sealing material of a medium temperature plate type solid-oxide fuel battery stack, which comprises the following components: Al2O3 powder, glass powder and an organic additive which is taken as a binder and a plasticizer, wherein the glass powder is composed of BaO with mass percentage of 20%-25%, B2O3 with mass percentage of 10%-15%, MgO with mass percentage of 20%-25%, ZnO with mass percentage of 10-15% and SiO2 with mass percentage of 30%-35%, its particle size is about 5-10mum; and the particle size of the Al2O3 powder is about 1-10mum. The invention also discloses a method for using the sealing material to seal the medium temperature plate type solid-oxide fuel battery stack. According to the invention, the tight accumulation of the sealing particles can be realized, the leakage rate of the sealing materials can be reduced, the mechanical properties of the materials can be increased, and the gas sealing can be effectively realized by the sealing mode which is convenient for operating and processing.

The invention discloses a novel integrated junction box for a three-phase shunt electric energy meter. The novel integrated junction box comprises a voltage connection module, a current connection module, a neutral line connection module, a voltage fuse protection connection module, a 485 communication and uncapping connection module, a spare fuse, a spare connector, a current socket special for field calibration, and a junction box body, wherein the spare fuse is arranged at one end of the surface of the junction box body; the spare connector is arranged at the other end of the junction box body; the current socket special for field calibration is arranged in the middle of the surface of the junction box body; the voltage connection module is arranged inside the junction box body; and thecurrent connection module is arranged on one side of the voltage connection module. Voltage output and current short-circuit are interlocked, a sliding connecting piece is removed, complicated operations performed according to operating procedures are not needed, and the condition that open circuit of a current transformer and short circuit of a voltage transformer are caused by operation errorsis avoided, so that the whole operation and recovery process is safe, accurate, reliable and rapid.

The invention discloses a chip-grade LED (Light Emitting Diode) packaging device with a controllable light emitting angle and a packaging process. According to the LED packaging device, first white wall adhesive layers are arranged on side faces of an LED chip, a diffusion layer and a fluorescent adhesive layer and are used as reflection surfaces; the reflection surfaces with different shapes can be designed aiming at requirements on different light emitting angles, so that the LED packaging device with the controllable light emitting angle is obtained; furthermore, the diffusion layer is arranged between the LED chip and the fluorescent adhesive layer, and the diffusion layer has a refractive index higher than that of a fluorescent adhesive; the difference between the refractive indexes of the LED chip and the fluorescent adhesive layer is reduced; the refractive indexes of the LED chip, the diffusion layer and the fluorescent adhesive layer have a certain gradient and the light emitting efficiency of the LED chip is improved, so that the luminous flux of the device is improved; the refractive indexes of diffusion powder and a packaging adhesive in the diffusion layer are different, and the condition that light emission of blue light of the LED chip is not uniform can be improved, so that the space color uniformity of the device is improved; and the design of a concave groove and white wall structure is adopted, so that the reliability problem of a product is greatly improved.

The invention relates to a battery pack comprising a connecting device connected with two batteries. The connecting device is in a strip-type sheet shape and comprises a soldering point arranged on the lower surface of the connecting device and soldered with cathode tabs and a wire joining arranged on the upper surface of the connecting device and connected with an external wire. One surface of the sheet-shaped connecting device is soldered with the cathode tabs of the batteries, and the other surface is connected with the external wire, which avoids that two wires are simultaneously soldered on the cathode tabs of the middles of the batteries and effectively reduces the thickness of the battery pack.

The invention discloses a method and a structure for filling clearances among stacked multi-layer wafers. According to the method, a wafer stacking structure is provided. The wafer stacking structure comprises a substrate and a plurality of wafers which are stacked on the substrate vertically. At least one primer clearance is formed between any two stacked wafers, and a height difference is formed between the primer clearance and the substrate. Then, the wafer stacking structure is overturned, and the wafers of the wafer stacking structure are dipped into an underfill material, wherein the underfill material is stored in an underfill material storage tank and keeps flowing to fill in the primer clearance. Finally, the wafer stacking structure is taken out and heated to solidify the underfill material in the primer clearance. Therefore, the problem that the clearances among the conventional stacked multi-layer wafers cannot be filled by dispensing can be solved, and a plurality of primer clearances can be filled once, so that production efficiency is improved greatly.

Disclosed is an external medium voltage power supply system for a motor train unit. The external medium voltage power supply system comprises a normal external medium voltage power supply circuit and an emergency external medium voltage power supply circuit; the external medium voltage power supply system is characterized in that the two sides of an external power supply contactor are connected with an AC/DC conversion power supply module through a diode separately; and the other end of the AC/DC conversion power supply module is connected with an external medium voltage power supply through a normally-open contact of an emergency external phase sequence detection contactor. The apparatus has the following three remarkable effects: 1, the system is provided with a hard line interlocking circuit, so that vehicle safety can be ensured; when a misoperation is done by a person for external connection before falling down, it is ensured that a pantograph type current collector automatically falls down when an external power supply is not inserted in the vehicle, namely when an external key is pulled off, in order to ensure that external power supply and high voltage power supply do not supply power concurrently; 2, the external key is provided, so that only one external power supply can be connected to the whole motor train unit in order to prevent interphase short circuit of two power supplies; and 3, the emergency power supply circuit is provided, so that it is ensured that a charger can be started through an external power supply interface to charge a storage battery when the vehicle storage battery is out of power while a control power supply is not available.

The invention discloses a liquid crystal display device, which comprises a color film substrate, an array substrate arranged opposite to the color film substrate, a conducting layer arranged on the color film substrate, an insulation layer arranged on the array substrate, a data line layer arranged in the insulation layer, a section difference layer arranged on the array substrate of a non-date line region, and a frame sealing rubber layer arranged between the array substrate and the color film substrate, wherein a space between the array substrate and the color film substrate is called as the thickness of a liquid crystal box; the region having the data line layer is defined as a data line region; the region without the data line layer is defined as the non-date line region; and a plurality of gold balls are arranged in the frame sealing rubber layer. The liquid crystal display device effectively prevents short circuit of the data line at the frame sealing rubber coating part on the array substrate and a common electrode on the color film substrate caused by the gold balls in the frame sealing rubber, and reduces the occurrence of displaying bad phenomena so as to improve yield and dependency for long-term use of products.

The invention discloses a collector ring applied to alternators and a manufacturing method thereof, which can retain and simplify the characteristic of the overall shaping of the collector rings and avoid the defect of short circuit between the positive and negative electrodes of collector rings, thereby optimizing the manufacture technique of collector rings. The collector ring comprises a positive electrode ring, a negative electrode ring, lead wires of the positive electrode ring and the negative electrode ring, and, an insulation caulking ring arranged between the positive electrode ring and the negative electrode ring and used for separating the positive electrode ring and the negative electrode ring. The manufacturing method of the collector ring is that: firstly, the positive electrode ring and the negative electrode ring of the collector ring are processed respectively; secondly, the positive electrode ring and the negative electrode ring are positioned at the upper end and the lower end of the insulation caulking ring respectively; thirdly, the positive electrode ring, the negative electrode ring and the insulation caulking ring are injected integrally.

The invention discloses an intelligent charging pile with a solar auxiliary power generation function. The intelligent charging pile comprises a diesel generator, an LED advertisement display screen, dehumidifiers and a humidity sensor; a storage battery is fixedly mounted at the bottom of a pile body; a solar photovoltaic panel and a warning light are both fixedly connected to the top of the pile body; the diesel generator is arranged on one side of the pile body, and a lightning arrester is mounted on the other side of the pile body; charging heads are connected to the two sides of the pile body correspondingly; a temperature display screen and the LED advertisement display screen are embedded on the outer side of the pile body; controllers, an IC card sensing device and an IC card balance display screen are embedded on the outer wall of the pile body; and the dehumidifiers, the humidity sensor and a temperature sensor are embedded in the inner chamber of the pile body. According to the intelligent charging pile with the solar auxiliary power generation function, disclosed by the invention, due to the arrangement of the diesel generator and the solar photovoltaic panel, charging can be performed during power outage; due to the arrangement of the LED advertisement display screen, advertising can be codnucted; and due to the embedding of the dehumidifiers, the internal moisture can be removed.

The invention relates to a charging gun having good heat conduction and heat dissipation performances. The charging gun comprises a gun body, a terminal, an insulated sleeve and a metal heat-dissipation part; the rear end part of the terminal is arranged on the sleeve in a penetrating manner; an installation hole used for fixing the sleeve in a penetrating manner is arranged on the metal heat-dissipation part; and the heat-dissipation part is fixed on the gun body. Compared with the prior art, the charging gun having good heat conduction and heat dissipation performances disclosed by the invention has the advantages that: because the metal heat-dissipation part is used as the main body for fixing the terminal and the metal heat-dissipation part and the terminal are separated by the insulated sleeve, short-circuiting is avoided; the traditional large ceramic part for fixing the terminal is eliminated; the easy breaking problem due to trepanning on the large ceramic part is avoided; bothprocesses of processing the sleeve and forming the installation hole on the metal heat-dissipation part are relatively convenient and low in processing difficulty; more importantly, the heat dissipation performance of metal is good; the metal heat-dissipation part is used as the main body for fixing the terminal; therefore, the heat dissipation effect is greatly improved; and relatively high heatdissipation requirements of the charging gun can be satisfied.

The invention provides a power distribution cabinet with a dust removal device. The power distribution cabinet comprises a cabinet, an electrical apparatus element is arranged in the cabinet body, suspended hoods are arranged at the upper end in the cabinet body and on the two sides in the cabinet body, the suspended hoods are connected to air draft fans through air pipes at the rear ends of the suspended hoods, filter screens are arranged in the air pipes, and dust recovery boxes are arranged on the filter screens. The suspended hoods are arranged in the cabinet body, the air draft fans are used for removing dust in the cabinet body, the situation that the dust is attached to a circuit to cause a short circuit is avoided, the interior and exterior of the cabinet body are detected through smoke and dust detectors, the air draft fans are automatically started to work, the working life of the power distribution cabinet in the working environment with a large amount of conductive dust is prolonged, and potential safety hazards are reduced.

The invention discloses a water-proof electric heating actuator. A drive element of the water-proof electric heating actuator comprises a temperature sensing bulb fixing sleeve (3) which is installed inside a handle shell (1), a temperature sensing bulb (4) which is arranged inside the temperature sensing bulb fixing sleeve (3), and a reset part (5), wherein a rod part (41) which extends out or draws back inside the temperature sensing bulb (4) along with the change of temperatures is arranged inside the temperature sensing bulb (4) so that when extending out, the rod part (41) can push a transmission push rod (2) to move downwards, when the rod part(41) draws back, the reset part (5) drives the transmission push rod (2) to reset; a through hole which enables a lead line (6) to penetrate out is formed in the side wall of the temperature sensing bulb fixing sleeve (3), and the lead line (6) further penetrates through the through hole through a sealing pad (71) to seal. The structural design of the water-proof electric heating actuator can enable the actuator to have the water-proof performance, and therefore the water-proof electric heating actuator can work in a humid environment for a long time and the phenomenon of circuit cutting-out or arcing is prevented from occurring.

The invention relates to a lithium battery electrode sheet cleaning device and method, and aims to provide the lithium battery electrode sheet cleaning device and the lithium battery electrode sheet cleaning method capable of cleaning metal filings and dust on the surface of an electrode sheet and metal filings and dust on a cut part at the edge of the electrode sheet. The lithium battery electrode sheet cleaning device comprises an upper adsorption conveying belt, a lower adsorption conveying belt, an upper vacuum adsorption plate, a lower vacuum adsorption plate, an edge cleaning device, a lower surface cleaning device and an upper surface cleaning device, wherein the conversion of upper/lower surface adsorption is realized through an internal adsorption cavity of the upper vacuum adsorption plate on the upper adsorption conveying belt and the lower vacuum adsorption plate on the lower adsorption conveying belt; and the cleaning is performed through a left edge cleaning device, a right edge cleaning device, the lower surface cleaning device and the upper surface cleaning device in sequence. The lithium battery electrode sheet cleaning device and the lithium battery electrode sheet cleaning method have the beneficial effects that the metal filings and the dust on the surface of the electrode sheet and the metal filings and the dust on the cut part at the edge of the electrode sheet can be cleaned and on-line continuous cleaning can be realized.

The invention relates to a short circuit overheating protection plug. The plug comprises a shell and a plurality of conducting plates, wherein the shell is in a hollow structure; the conducting platesare slidably connected to a side wall of the shell; a connecting plate is adhesively fixed on the plurality of conducting plates; an upper end of the shell is provided with a chute; a control rod isslidably connected in the chute; a first spring is adhesively fixed on the control rod; and one end, away from the control rod, of the first spring is adhesively fixed on an inner wall of the shell. The short circuit overheating protection plug has the advantages that when the conducting plates emit heat due to poor contact with a metal shrapnel in a socket, a steel ball strikes the connecting plate and drives the conducting plates to vibrate and moves at a distance toward the socket direction, at this time, the conducting plates and a thermoelectric power generation strip are out of contact so that an electromagnet is deenergized; the steel ball resets under the action of a second spring; the abovementioned operations are repeated so that the conducting plates and the socket are connectedmore tightly to prevent the dangerous condition that the short circuit is caused by overheating of the plug due to poor contact.

The invention discloses an intelligent earth wire for connecting an automobile emergency startup power supply with an automobile storage battery. According to the invention, an MCU is adopted as a control chip and combined with a power supply circuit, a temperature detection circuit, a voltage detection circuit, a working state prompting circuit, a load access detection circuit, a load connectionstate identification circuit, a connection control circuit and other peripheral circuits. In this way, an automobile storage battery externally connected with the earth wire can be detected. By meansof the MCU, the connection state of the automobile storage battery can be judged. Meanwhile, when the automobile storage battery is in a positive connection state, the electric connection between a first negative electrode connecting end and a second negative electrode connecting end is connected through a connection control circuit control switch. The automobile emergency startup power supply andthe automobile storage battery are connected in parallel. In this way, the formation of a short circuit at the two ends of the earth wire is avoided. Meanwhile, the occurrence of a safety accident caused by the reverse connection of the automobile storage battery is avoided, so that the product is safer and more reliable.

The invention discloses an intermediate connector special for fireproof cables. The intermediate connector special for the fireproof cables is characterized by comprising a copper pipe (1), a ceramic ring sleeve (2), terminal bolts (3), terminal nuts (4) and compression rings (5), wherein the ceramic ring sleeve (2) is arranged on the inner wall of the copper pipe (1); the two ends of the copper pipe (1) are connected with the terminal bolts (3); and each terminal bolt (3) is in threaded connection with one terminal nut (4). In the intermediate connector special for the fireproof cables, the strength of a branch box can be effectively increased by connecting the terminal bolts with the terminal nuts, and heat can be effectively insulated and a good insulation effect can be achieved by arranging the ceramic ring sleeve; and because the branch points and the joints of the fireproof cables are the weakest parts of the fireproof cables for insulation, an inter-phase short circuit, a short circuit between wires and a short circuit between a wire core and an outer sheath can be effectively prevented by a ceramic liner.

The invention provides a semiconductor memory device structure and a manufacturing method thereof. The memory device structure comprises a semiconductor substrate, word line structures and contact structures, wherein the semiconductor substrate comprises an active area and a groove isolation structure, the word line structures are formed in the semiconductor substrate and crossed with the active area, a long end tail part is arranged at one end of any word line structure, a short end tail part is arranged at the other end of the word line structure, the long end tail parts and the short end tail parts of adjacent two word line structures are arranged in a staggering manner, and the contact structures are formed at the long end tail parts of the word line structures so that electric lead-out of the word line structure can be realized. According to the semiconductor memory device structure and the manufacturing method thereof, mask design is performed to word line grooves, the word linestructures with the tail parts arranged in a long and short staggering manner are prepared, the occupied areas of the whole regions of the contact structures are not required to be increased, the manufacturing windows of the contact structures can be increased, and the short circuit of adjacent word line structures due to the contact structures is avoided. The tail parts of the word line structures are not required to be bent, the technology complexity is reduced, and the locating difficulty of the contact structures is reduced.

The invention discloses a protection device for a battery pack of a new energy automobile. The protection device comprises a battery box, wherein a lower support strip plate, an upper support strip plate and a grid plate are arranged in the battery box; the grid plate is distributed at the bottom end of an inner cavity of the battery box in a square way; the bottom end of the grid plate is fixedlywelded with the center of the bottom end of the battery box; the lower support strip plate is fixedly welded at the bottom end of the inner cavity of the battery box in the grid plate; the side end of the lower support strip plate is fixedly welded with the grid plate. The protection device for the battery pack of the new energy automobile has the advantages that when the automobile is driven insunny days and does not encounter with water pits, a cover plate and a plug valve are opened to exchange heat with outside cold air flow to carry away heat, and the air cooling type is matched with the water cooling type of the automobile self, so that the good heat radiating property is realized; when the automobile is driven in rainy days or encounters with water pits, the cover plate is covered, and the plug valve is closed, so that the outside water is prevented from entering the battery box, and the short-circuiting of the battery of the battery box due to water is avoided; the whole heatradiating property is better, and the waterproof effect is good.

The invention discloses a device and method for compositely machining a curved hole through magnetic field guide and electrolysis electric sparks. The method and the device are suitable for micro machining of non-magnetic materials and belong to the field of non-traditional machining in a manufacturing technology. According to the device and the method, a guide ring comprises a left electromagnetic device and a right electromagnetic device, wherein the left electromagnetic device and the right electromagnetic device load voltage to generate different magnetic fields through a digitally controlled stabilized voltage supply; the guide ring is arranged in a sliding rail to continuously output magnetic field force to an electrode; a tool electrode generates a tilt angle in a universal joint due to the magnetic field force; a flexible hose is fed along the swing direction of the tool electrode under the drive of a vertical feed motor; the tool electrode is electrochemically discharged in the direction to etch off a workpiece material; a circulating pump in the device conveys an electrolyte to the flexible hose, and the electrolyte flows to the electrode through a reserved micro-pore in the universal joint, thereby achieving the effects of discharging scraps and supplementing the electrolyte; and a computer in the device controls the magnetic field intensity through regulating output voltage of the digitally controlled stabilized voltage supply, and the rotating speed and the corner of a corner stepper motor and the feed velocity of a vertical feed motor are controlled through a control card.

The invention discloses a mask and a fabrication method of a thin film transistor, belonging to the technical field of displays and solving the technical problem of low yield when a channel width is relatively small. The mask comprises a light-proof region, a partial transmitting region and a full transmitting region, wherein the partial transmitting region comprises a channel pattern of the thin film transistor, the channel pattern is shaped like a horseshoe and comprises a buckling part and two straight line extension parts, and the width of the buckling part is greater than the width of each straight line extension parts.

The invention provides a motor insulating framework and a motor having the framework. The motor insulating framework comprises an upper framework and a lower framework. The upper framework and the lower framework are fixedly connected. The lower framework comprises a first side wall and a second side wall. The second side wall is arranged in a way to be spaced from the first side wall to form a wire winding groove of the lower framework. One second side wall side far away from the wire winding groove is provided with a plurality of wire arranging grooves. The wire arranging grooves are sequentially arranged along the height direction of the lower framework. The motor insulating framework further comprises a winding part located between the first side wall and the second wall and connected with both the first side wall and the second side wall. By means of the motor insulating framework, windings of different phase lines can be separated in terms of the direction. Therefore, a short circuit caused by intersection of different phase-line windings can be prevented.

The invention discloses a power distribution network electrical equipment monitoring system which comprises a sensor group and a data collection mainframe, wherein the data collection mainframe is connected with the sensor group which comprises an ultrasonic wave sensor, an electromagnetic sensor, an ultraviolet sensor and an infrared sensor, the ultrasonic wave sensor and the electromagnetic sensor are jointly used for detecting local discharge signals, the ultraviolet sensor is used for detecting arc light, and the infrared sensor is used for detecting temperature. According to the power distribution network electrical equipment monitoring system, the defect of the electrical equipment can be found in advance, the failure is prevented, and preventive measures can be taken in advance.