25results about How to "High current" patented technology

A temperature control device includes a temperature detector, a difference operation unit, a controller, a saturation processing circuit unit, a rewritable storage unit, and a conversion unit. The difference operation unit operates a digital value corresponding to a difference value between a detected temperature value and a target temperature. The controller calculates a manipulated variable using the digital value operated by the difference operation unit. The saturation processing circuit unit includes a digital circuit to limit an output value of the controller to a pre-set upper limit value. The rewritable storage unit stores the upper limit value read from a storage area of the rewritable storage unit and input into the saturation processing circuit unit. The conversion unit converts the output value of the saturation processing circuit unit into an analog signal to output the converted value as a control command value to the heater.

A disconnector to reduce considerably high voltage and high frequency current generated during the service no-load opening and closing, the disconnector comprising a first main contact (10), a second main contact (20), a sliding contact (50) and an arcing horn (60) having a length (70), the disconnector having a connected state, an intermediate state and a disconnected state, wherein in the connected state a first electrical contact is established between the first main contact and the second main contact, in the intermediate state the first electrical contact is interrupted while a second electrical contact exists between the sliding contact and a contact position (160) on the length of the arcing horn, and in the disconnected state the first electrical contact and the second electrical contact are interrupted, wherein at least a part of the length of the arcing horn comprises an electrical filter (180) configured to provide a resistance and an inductance to an electrical current.

The utility model discloses a kind of welding strip stretching devices, including guide seat and multiple clamping structures, multiple clamping structures are evenly spaced clamped on welding strip, and multiple clamping structures are all slidably connected with guide seat;Multiple clamping structures are suitable for moving in the same direction under external force, and the distance of each clamping structure relative to guide seat is an arithmetic sequence.The tolerance between the adjacent two numbers in the arithmetic sequence is a constant value, that is, the distance of each clamping structure is a constant value, because multiple clamping structures are evenly spaced distributed on welding strip, so the stretching of each part on welding strip is the same, thereby realizing the uniform stretching of each part of welding strip.

This utility model discloses a water-cooled vacuum capacitor, comprising: an insulating shell and two electrode groups. Each electrode group includes an electrode disk and an electrode ring group fixed to the electrode disk. The insulating shell is sealed and connected to the two electrode disks to form a vacuum chamber. The two electrode ring groups are coupled and housed within the vacuum chamber. At least one electrode disk has a water-cooling chamber inside, and also has an inlet and an outlet communicating with the water-cooling chamber. By incorporating a water-cooling chamber within at least one electrode disk, this utility model can directly cool the electrode group from the heat source, significantly improving heat dissipation efficiency, enhancing the voltage withstand stability of the vacuum capacitor, reducing the impact of high temperature on capacitance, thereby ensuring impedance matching of the equipment, improving the electrical performance stability of the vacuum capacitor under high-frequency conditions, and meeting users' requirements for high current and voltage withstand stability of vacuum capacitors.

The utility model discloses a heavy current common mode choke of splayed pin mode, including magnet ring, first coil, second coil and bottom plate, first pin and second pin are respectively provided on the two sides of first coil, third pin and fourth pin are respectively provided on the two sides of second coil, and the bottom plate is provided with the first pin and the second pin. The bottom plate is provided with a first plug hole matched with the first pin, a second plug hole matched with the second pin, a third plug hole matched with the third pin, a fourth plug hole matched with the fourth pin, a third plug hole matched with the first pin, a third plug hole matched with the second pin, a fourth plug hole matched with the third pin and a fourth plug hole matched with the fourth pin. The first plug-in hole and the second plug-in hole incline upwards by 13 degrees along the center of the bottom plate, and the third plug-in hole and the fourth plug-in hole incline upwards by 13 degrees along the center of the bottom plate, so that a splayed pin outlet mode is formed, the space is saved, the installation and welding difficulty is reduced, and the situation that the heat dissipation performance of the inductor is possibly affected due to the fact that the distance between pins is small is avoided.

The remote power supply voltage regulation and control device comprises an inverter, an input reactor, an output reactor, a dry-type transformer, an input contactor, an output contactor and an isolating switch, and is characterized in that the dry-type transformer is arranged close to a motor load; the output end of the inverter is connected with the input end of the output reactor, the output end of the output reactor is connected to a primary winding of the dry-type transformer, one end of a secondary winding of the dry-type transformer is connected with a three-phase power supply, and the other end of the secondary winding of the dry-type transformer is connected with a motor load through the output contactor. According to the remote power supply voltage regulation and control device, the inverter and the dry-type transformer are used for compensating the voltage signal input to the motor load, the phenomenon that the voltage of the motor load is too low is avoided, the situation that the current in a power supply line between the power supply equipment and the motor load is too large is avoided, the electric energy loss of the power supply line is reduced, and the service life of the power supply line is prolonged. And the electricity utilization cost is saved for coal mine enterprises.

A current peak value measurement apparatus (100), a high voltage generator (200), and a therapeutic device for vascular calcification. The current peak value measurement apparatus (100) comprises a PCB Rogowski coil (10), a sampling resistor (11), a signal amplification circuit (12), an integration and voltage retaining circuit (13) and a micro-controller (14), wherein the PCB Rogowski coil (10) is used for sensing a current signal in a line to be tested, and for obtaining a corresponding induced electromotive force; the sampling resistor (11) is connected to the PCB Rogowski coil (10); the signal amplification circuit (12) is connected to the sampling resistor (11); the integration and voltage retaining circuit (13) is connected to the signal amplification circuit (12); and the micro-controller (14) is connected to the integration and voltage retaining circuit (13), and is used for performing ADC sampling on the maximum value of a voltage signal, and for obtaining a current peak value of the current signal in the line to be tested according to ADC sampling data and preset current rating data. The apparatus (100) can realize real-time monitoring over a pulse current and accurately measure a current peak value of the pulse current, which does not affect an original high-voltage discharge loop, and the apparatus has the advantages of a high safety, a fast response speed, a stable process, a high consistency and a low cost.

The application relates to the technical field of optical fiber connectors, and discloses an anti-loosening optical fiber connector which comprises a connector main body, a transmitting end fixedly connected to the side surface of the connector main body, a connecting block fixedly connected to the side surface of the connector main body away from the transmitting end, a clamping mechanism fixedly connected to the side surface of the connecting block away from the connector main body, a protective sleeve fixedly connected to the side surface of the clamping mechanism away from the connector main body, a self-locking mechanism movably connected to one side of the protective sleeve close to the clamping mechanism, and a detection mechanism movably connected to the other side of the protective sleeve away from the clamping mechanism. The optical fiber cable is placed in the limiting block and the lower half screw rod, the upper half screw rod and the lower half screw rod are in contact with each other, the optical fiber cable is fixed between the upper half screw rod and the lower half screw rod, finally the threaded sleeve is turned into the outside of the upper half screw rod and the lower half screw rod, the upper half screw rod and the lower half screw rod are fixed, the position of the optical fiber cable is fixed, and the installation is more firm.

The object of the present invention is to provide a thermal power generation battery with excellent battery characteristics. The above problem can be solved by a thermal power generation element that does not require a temperature gradient, wherein a first part comprising a semiconductor which produce thermally excited electron and hole, a second part comprising an electrolyte in which an charge transport ion pair can be moved therein, and a third part comprising a substance that is an electrode, are in contact with each other in this order, and wherein a valance band potential of the semiconductor of the first part is positive with respect to a redox potential of a charge transport ion pair; and an ion which is more susceptible to oxidation among the two ions is oxidized at an interface between the first part and the second part; and an ion which is more susceptible to reduction among the two ions is reduced at an interface between the third part and the second part; and wherein the thermal power generation element satisfies the following formula (I): L / IDT=1−20 wherein L is a "shortest distance between the first part and the third part", and IDT is "ion diffusion thickness."

The present application provides a preparation method and application of a crystalline silicon solar cell having a shallow junction diffusion emitter. The preparation method comprises a diffusion process and a chain oxidation process, the diffusion process comprises low temperature diffusion and high temperature propulsion, and the chain oxidation process comprises high-temperature chain oxidation. According to the present application, firstly, a low-doped diffusion shallow junction having a depth of 0.15 um is prepared by means of optimization of the diffusion process, and doping with a certain dose concentration is formed on the surface of a diffusion layer by using photon thermal activation radiation energy of high-temperature chain oxidation, so as to solve the mismatch problem of alloy ohmic contact subsequently formed with silver paste, and finally, the photoelectric conversion efficiency is improved to a high degree.

Embodiments of the present disclosure provide a display panel and a display device, and relate to the technical field of display, and are used for improving the display effect of the display panel. The display panel comprises a substrate and a plurality of sub-pixels. The sub-pixel comprises a pixel circuit, and the pixel circuit comprises a driving sub-circuit, a coupling sub-circuit, a data writing sub-circuit and a first control sub-circuit. The coupling sub-circuit is connected with the driving sub-circuit. The data writing sub-circuit is connected with the coupling sub-circuit. The first control sub-circuit is connected with a first control signal line, a first reference voltage signal line and the coupling sub-circuit respectively. Wherein, the plurality of sub-pixels comprise a first color sub-pixel and a second color sub-pixel, the first reference voltage signal line comprises a first sub-signal line and a second sub-signal line, the first sub-signal line is connected with the first control sub-circuit of the pixel circuit in the first color sub-pixel, and the second sub-signal line is connected with the first control sub-circuit of the pixel circuit in the second color sub-pixel. The display panel is used for displaying an image.

The invention provides a converter control method and device, control equipment and a converter, and belongs to the technical field of power supplies. The converter comprises at least one inversion module, and the inversion module comprises a negative direct current switch and a first buffer unit; the first buffer unit comprises a first buffer switch and a first buffer resistor which are connected in series; the left and right sides of the first buffer unit and the left and right sides of the negative DC switch are respectively provided with a first grounding branch and a second grounding branch, and the first grounding branch and the second grounding branch are provided with Y capacitors and are connected with the same reference ground. The method comprises the following steps: when an inversion module is controlled to work, controlling a negative direct current switch to be closed; and after the negative direct-current switch is detected to be closed, the first buffer switch is controlled to be closed. According to the invention, generation of large impact current can be avoided, reference ground voltage bounce caused by the large impact current can be avoided, stable and reliable starting of the inversion module can be realized, and the safety of each device in the inversion module is protected.

The invention provides an energy storage and discharge system applied to a laser therapeutic instrument, and relates to the technical field of energy storage and discharge, the system comprises a power supply input interface, a slow charging unit, a slow charging switch unit, an energy storage unit and an enabling control unit, the output end of the slow charging unit is connected with the first port of the slow charging switch unit; the second port of the slow charging switch unit is connected with the energy storage unit, the control end of the slow charging switch unit is connected with the enabling control unit, and the slow charging switch unit is in an off state. According to the invention, the enabling control unit controls the slow charging switch unit to be switched on so as to control the charging time of the energy storage unit through the power supply input interface, and current limiting is carried out through the slow charging unit, so that the problem that the energy storage unit is damaged due to overlarge current in the energy storage process is avoided.

The present application relates to a kind of main hoist remaining life prediction method and device, wherein, method includes: S1, the vibration time series data and working condition parameter time series data of the main hoist to be measured are acquired, and the measured vibration signal and measured working condition parameter signal of single operation are segmented, detection data group is constructed and time information is generated;S2, using detection data group to identify working condition, input the first self-encoding model corresponding to working condition, obtain the vibration signal after reconstruction and physical constraint residual, and the model is based on physical constraint dynamics equation to build;S3, total deviation is calculated according to reconstructed signal and physical constraint residual, and deviation sequence is obtained according to time sequence;S4, failure curve is generated based on deviation sequence, and then the remaining life is obtained.The present application can effectively separate working condition influence, fusion physical priori knowledge, realize accurate and reliable life prediction under the condition of variable working condition and variable load.

The invention relates to the technical field of cooling water systems, in particular to an all-environment process cooling water system which comprises a bottom frame, a frame is mounted on the upper surface of the bottom frame, a cooling water assembly is mounted in a space formed by the bottom frame and the frame, an end plate is mounted on the upper portion of one side face of the frame and parallel to a second side plate, and a round opening is formed in one face of the end plate. The cooling fan is arranged on the inner side of the round opening and connected with the end plate, and the current adjusting piece is arranged on the side, away from the round opening, of the cooling fan and electrically connected with the cooling fan to be used for adjusting the working current of the cooling fan. The cooling fan has the following beneficial effects that the whole rotating speed adjusting process of the cooling fan is automatically triggered by temperature changes, depending on the thermal expansion and cold contraction characteristics of mercury and a mechanical linkage structure, manual control or real-time monitoring of maintenance personnel is not needed, and the overall energy consumption of a system can be reduced after long-term use.

This utility model discloses a color-mixing flash wheel, comprising: a wheel fork bracket and rivets. The wheel fork bracket has annular synchronous positioning components on both sides. Each set of synchronous positioning components has an annular flange on its outer side. A first bearing is mounted on the synchronous positioning component. A positioning light ring is mounted outside the first bearing. An annular circuit board is mounted inside the positioning light ring. The circuit board is electrically connected to multiple flash lamps, which emit multiple colors of light. A wheel core is mounted outside the positioning light ring. A second bearing is mounted outside the wheel core. The outer edge of the wheel core is recessed inward to form a placement groove adapted to the flash lamps. The flash lamps are connected to the circuit board via bent metal wires. The metal wires extend above the placement grooves to facilitate the placement of the flash lamps within the grooves. This utility model solves the defect that the small size of the light lamps prevents the mixing of multiple colors of light as the wheel rotates.

The application provides a method and device for protecting a stretch limit position, a vehicle and a storage medium. The method comprises: obtaining a vehicle speed value when it is determined that the vehicle enters a preset stretch limit position protection mode; increasing the current of a shock absorber in the vehicle according to the vehicle speed value; and increasing the damping force generated by the shock absorber according to the increased current, so as to protect the stretch limit position of the shock absorber. The above method obtains the vehicle speed of the shock absorber, and increases the current of the shock absorber at different speeds according to the vehicle speed of the shock absorber, so as to increase the damping force of the shock absorber at different speeds. When facing a larger impact, the problem of abnormal sound of the stretch limit position of the shock absorber can be better avoided by increasing the damping of the shock absorber, and the hard contact of the buffer device in the shock absorber is reduced, so as to reduce the influence on the durability of the shock absorber.

This invention discloses an electroplating apparatus and an electroplating production line, comprising: an electroplating tank and a clamping and conveying structure; wherein, the clamping and conveying structure is disposed on the open side of the electroplating tank; the clamping and conveying structure conveys the film to be coated along the conveying direction, and the clamping and conveying structure includes at least two sets of clamping and conveying mechanisms; each clamping and conveying mechanism includes an electroplating clamp, a closing clamp assembly, and an opening clamp assembly; on one clamping and conveying mechanism, the closing clamp assembly and the opening clamp assembly are disposed at both ends of the clamping and conveying mechanism along the conveying direction; along the conveying direction of the film to be coated, the closing clamp assembly and the opening clamp assembly of two adjacent clamping and conveying mechanisms are spaced apart and form an adjustable interval. This structure, by providing an adjustable interval, corrects the error caused by the asynchronous electroplating clamps in the previous clamping and conveying mechanism when the film to be coated enters the next stage of the clamping and conveying mechanism; thus greatly solving the synchronization problem.

The utility model provides a kind of stacked grid laser secondary injection repair equipment, comprising: conveyor belt;Feeding assembly, feeding assembly includes first feeding mechanism and second feeding mechanism in power-off state available;First double laser assembly;Second double laser assembly;Carrying assembly;Rotary table;Feeding assembly, rotary table, discharging assembly are sequentially arranged, and carrying assembly is located in the side of rotary table, to realize the position switching of product between conveyor belt and rotary table.The utility model can be applicable to different sizes of battery piece, and the action contact time of laser and battery piece is increased by four times positioning of different sizes of battery piece by laser, and ohmic contact is better, current is increased, silver silicon microcrystalline is promoted to form, junction is fully fired, and the filling factor of battery piece is improved.

This invention discloses an oil-based binder, anode slurry, a composite silicon anode, and an all-solid-state battery, belonging to the technical field of all-solid-state battery energy storage materials. The oil-based binder comprises component A and component B; component A is a copolymer composed of acrylate, long-chain ether oxygen bonds, and epoxy active groups, while component B is a styrene-ethylene-butene-styrene block copolymer. This binder is prepared through free radical polymerization and physical blending, is soluble in weakly polar solvents, and is suitable for composite silicon anode systems based on sulfide solid electrolytes. The binder provided by this invention possesses excellent ion conduction ability, mechanical properties, and interfacial adhesion, effectively buffering the volume expansion of the silicon anode, maintaining electrode structural stability and interfacial ion transport, thereby significantly improving the rate performance and long-cycle stability of the all-solid-state battery.

The application belongs to the field of positioning accuracy measurement, and provides a positioning accuracy measurement device for push-out photoelectric equipment, which comprises a sleeve, the sleeve is fixedly connected with the outer wall of the shell, a piston rod is slidingly connected in the sleeve, a rotating rod is rotatably connected between the piston rod and the eccentric position of the rotating seat, the sleeve is connected with an angle measurement mechanism, the angle measurement mechanism can measure the rotating angle of the rotating seat through liquid level change, the telescopic end of the electric telescopic rod is fixedly connected with a connecting assembly, the inner side end surface of the shell is fixedly connected with a buffer mechanism, the buffer mechanism is rotatably connected with the connecting assembly, and the buffer mechanism can be telescopic under the pushing of the connecting assembly, and the buffer mechanism is connected with a stroke measurement mechanism. In the application, under the cooperation of the angle measurement mechanism and the stroke measurement mechanism, whether the equipment body is positioned to the predetermined position can be determined through the respective liquid level changes.

The invention relates to a traction network (1) in an electric or hybrid vehicle, comprising a first traction line (2) and a second traction line (4), which each have an insulating sheath (3, 5), wherein at least one conductor loop (6) having at least one coil is arranged at the traction line (2, 4), wherein the traction line (2, 4) is electrically insulated from the at least one conductor loop (6).

The invention discloses a fault monitoring method and device of a range hood, an intelligent range hood and a storage medium, the fault monitoring method of the range hood can be applied to the technical field of intelligent kitchen appliances, and the method comprises the following steps: acquiring a real-time structure resistance coefficient in the running process of the range hood; when the real-time structure resistance coefficient is larger than a first preset coefficient threshold value, the current of the range hood motor is continuously increased with a preset current threshold value as the upper limit; the real-time structure resistance coefficient is updated according to a preset detection period from the beginning of current increasing, the state of the check valve is determined based on the real-time structure resistance coefficient of the current detection period, and updating of the real-time structure resistance coefficient is stopped until the state of the check valve is obtained; the state of the check valve indicates whether the sticking and blocking conditions of the check valve of the range hood are relieved or not; and executing a fault prompting action corresponding to the state of the check valve and a current control action corresponding to the state of the check valve. According to the invention, the damage risk caused by long-term overload operation of the motor is avoided, and accurate identification of the fault type is realized.

The application provides a multi-value transistor and a multi-value logic circuit, and relates to the field of multi-value transistors. The multi-value transistor comprises a channel layer, a gate, a source and a drain arranged on the channel layer, and an electron filtering structure. The electron filtering structure has at least one filtering energy band gap, and is connected with the source to filter the electrons flowing to the source within the filtering energy band gap, or is connected with the drain to filter the electrons flowing to the drain within the filtering energy band gap. At least one filtering energy band gap is located within the barrier change range of the channel layer, so that the current of the channel layer does not change to form a current platform when the barrier conduction band bottom level of the channel layer falls within the range of the filtering energy band gap. By arranging the electron filtering structure, the filtering energy band gap is used to filter the electrons flowing to the channel layer, so that the current change curve of the channel layer appears a current platform to form a middle state during the increase of the gate voltage, and the three-value or more-value function is realized.

The utility model provides a kind of heat tracing band control system and self-limiting temperature heat tracing band, heat tracing band control system is connected with self-limiting temperature heat tracing band body, and heat tracing band control system includes temperature detection module and variable resistance module;Temperature detection end of temperature detection module is correspondingly set with self-limiting temperature heat tracing band body, and the first output end of temperature detection module is connected with the control end of variable resistance module, and variable resistance module is connected with self-limiting temperature heat tracing band body in series. The temperature of self-limiting temperature heat tracing band body is detected by setting temperature detection module, and then the resistance of variable resistance module connected with self-limiting temperature heat tracing band body in series is adjusted, so as to adjust the total resistance of the branch where self-limiting temperature heat tracing band body is located, limit the current of the branch, avoid excessive current due to the resistance of self-limiting temperature heat tracing band body being too low in low temperature environment, and improve the safety of self-limiting temperature heat tracing band.