268results 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.

The invention discloses a braille point display device. According to the Braille point display, the shape memory alloy material is used as the lifting structure, and the lifting structure is controlled to deform under the power-on condition, so that the point display part is driven to extend or retract relative to the mounting main body. Compared with piezoelectric driving and electromagnetic driving equipment, the shape memory alloy material can adjust the deformation quantity through the power-on state, large deformation quantity can be generated through a small structural material, the size of a lifting structure does not need to be increased, the driving structure of the braille convex points is effectively simplified, the size of the equipment is reduced, and the production cost of the equipment is reduced. And meanwhile, the locking mechanism is arranged, so that the telescopic state of the point display part is kept, the situation that the lifting structure is always kept in a power-on state is avoided, and the power consumption of equipment is reduced.

The invention discloses a geological survey device, and belongs to the technical field of geological survey, the geological survey device comprises a base, the top of the base is provided with a collection frame and an electric lifting mechanism, and the top of the electric lifting mechanism is provided with a mounting plate; a plurality of connecting springs are fixedly connected between the collecting frame and the mounting plate, a sliding hole is formed in the top of the mounting plate, an adjusting plate is slidably mounted in the sliding hole, a linkage rod is hinged to the bottom of the adjusting plate, and the other end of the linkage rod is hinged to the top of the collecting frame; the sampling mechanism comprises a sampling barrel, a hollow shaft and a driving mechanism. Through the electric lifting mechanism and the sampling mechanism, stones can be crushed while soil sampling is achieved, the drilling speed and the feeding speed can be automatically adjusted according to feeding resistance, when the feeding resistance reaches a certain degree, the compressed gas storage tank is matched to improve the crushing effect on the stones, and the sampling efficiency is guaranteed.

The invention relates to the technical field of size detection, in particular to a size detection device and method special for a perfume bottle cap, and the device comprises a detection part which comprises a detection box body. Light emitted by the LED light source is refracted by the convex lens and then is flatly emitted to the projection curtain through the light cylinder and the open openings of the plurality of light barriers in parallel, and a part of the light is shielded by the bottle cap, so that a shadow is formed in the middle of the projection curtain; the camera shoots the front-back width and height of the shadow part on the projection curtain and compares the front-back width and height with the scale marks on the projection curtain, the width and height size of the bottle cap can be measured, multiple times of measurement are not needed, the detection efficiency is improved, the servo clamping jaw is driven to rotate through the output shaft of the angle adjusting motor, and the detection precision is improved. In the rotating process of the bottle cap, the two cameras carry out shooting continuously, the multi-dimensional angle of the bottle cap is measured, and the flexibility of size detection of the bottle cap is improved.

The invention discloses a river channel desilting device for water conservancy projects, and belongs to the technical field of water conservancy projects, the river channel desilting device comprises a collecting box used for storing sludge, a sludge pump is fixedly mounted at the top of the collecting box, and a feeding pipe and a discharging pipe are respectively communicated in a feeding port and a discharging port of the sludge pump; the extraction mechanism is used for extracting sludge, and the extraction mechanism comprises a mounting seat, an extraction pipe and a connecting pipe; the dewatering mechanism is used for dewatering sludge and comprises a collecting hopper and a dewatering cylinder, a conveying shaft is rotatably mounted in the dewatering cylinder, a spiral auger is fixedly mounted on the outer side of the conveying shaft, and the collecting hopper is slidably connected to the upper portion of the dewatering cylinder. Through the cooperation of the extraction mechanism and the dehydration mechanism, automatic extraction and dehydration of river silt can be achieved, the crushing mechanism is matched to achieve cutting and scattering of the silt, the scattering effect can be adjusted according to the flowing degree of the silt, the fluidity of the silt is improved, silt blockage is avoided, and the desilting efficiency is improved.

The invention discloses a power semiconductor device continuous switch test circuit and method, and relates to the field of power electronics, and the test circuit comprises a current generator which is used for generating a test current; the voltage balance module is used for generating test voltage; the auxiliary module is connected with the current generator and the voltage balance module and is used for providing test voltage and test current required in a continuous switching state for the power semiconductor device T1 to be tested; the capacitor discharging module is used for controlling the magnitude of voltage connected to the two ends of the power semiconductor device T1 to be tested; wherein the voltage balance module comprises a power semiconductor device Tc2 and a capacitor C1; the power semiconductor device Tc2 controls the capacitor C1 to apply voltage to the inductor L in the auxiliary module, and the voltage at the two ends of the inductor L is balanced. According to the application, the continuous switching condition simulation of the power semiconductor device T1 to be tested is met, and voltage and current stress decoupling is realized, so that a voltage source does not need higher voltage stress, and the requirement on a power supply is reduced.

The invention discloses a robot joint structure, a robot control method and a robot. The robot joint structure comprises a driver. The driving circuit, the control circuit, the speed measuring circuit, the accelerometer circuit and the gyroscope circuit are arranged on the first surface of the control panel, and the first surface of the control panel is correspondingly arranged close to the motor; the first bus capacitor module and the first temperature sensor module are arranged on a first surface of the power board, and one surface of the power board is correspondingly arranged close to a second surface of the control board; the second bus capacitor module, the second temperature sensor module, the power MOS tube module, the third temperature sensor module, the current sensor module and the fourth temperature sensor module are arranged on the second surface of the power board, and the second surface of the power board is correspondingly arranged close to the inner side wall of the shell. The problems that in the prior art, when a robot electric drive joint is under the high explosion working condition, the output current of a driver is insufficient, the structure is not compact enough, and the safety monitoring of a robot on unexpected actions is insufficient are solved.

The invention is suitable for the technical field of voltage converters, and provides a power supply circuit and a voltage converter. The power supply circuit comprises a comparison module, a first logic module, a second logic module, a first switch module and a second switch module, the comparison module is electrically connected with the first logic module and the second logic module, the first switch module is electrically connected with the second switch module and the first logic module, and the second switch module is electrically connected with the second logic module. The comparison module is used for receiving an enable signal, an input voltage of a voltage conversion module in the voltage converter and an output voltage of the voltage conversion module, the first switch module is used for receiving the input voltage, the second switch module is used for receiving the output voltage, and the first switch module and the second switch module are both used for being electrically connected with the gate driving module. According to the power supply circuit provided by the embodiment of the invention, when the enable signal is a low-level signal and the output voltage is greater than the input voltage, the current can be ensured to be relatively small and controllable, and a chip is not influenced.

The invention discloses a P-type gallium oxide horizontal diode device structure and a preparation method thereof, and mainly solves the problems of small current and poor voltage endurance capability of the existing similar device. The device structure comprises a gallium oxide insulating substrate (1), a gallium oxide P-type layer (2), cathode metal (3) and anode metal (4). Wherein the nickel oxide P-type layer is realized by performing ion implantation and annealing activation processes on the surface of the gallium oxide insulating substrate, and compared with the existing heterogeneous material deposition process, the implantation process has no interface defect, and the voltage endurance capability of the device can be improved. As the extension performance improvement of the device structure, a nickel oxide layer (5) can be additionally arranged between the gallium oxide P-type layer and the cathode to improve the conductivity of the device, or a field plate structure (6) is additionally arranged on the anode metal to further improve the voltage endurance capability of the device. The invention has the advantages of good conductivity and strong voltage endurance capability, and can be used for high-voltage high-power circuits such as high-voltage power grids, current inverters and data center power.

The invention discloses a nonlinear time-delay regulation and control device, which solves the problem that an electric appliance is unstable when the electric appliance is connected into a circuit when the current in the circuit is nonlinear and has large fluctuation, and comprises a box body, a control panel is arranged on the front surface of the box body, and wiring terminals are symmetrically arranged on the two sides of the box body. A power connection adjusting assembly is installed in the box body and used for controlling and adjusting, a top adjusting and controlling assembly is installed at the top end of the box body and used for adjusting non-linear current, the power connection adjusting assembly comprises a transverse plate movably installed in the box body, and end contacts are symmetrically installed at the two ends of the transverse plate. A normal power connection unit is installed on the transverse plate and used for power connection adjustment. In the working process, when the arranged transverse plate is located on the lower portion, a circuit can be normally connected into an electric appliance, after the transverse plate moves upwards, the circuit can be connected into regulation and control equipment, and the circuit can be conveniently regulated and controlled.

The invention relates to an outdoor communication cabinet which comprises a cabinet body and further comprises a bearing box, a gas storage part, a gas spraying pipe and a driving part. An air storage part is installed above the bearing box, an opening in the right end of the bearing box communicates with the cabinet, and a dustproof net is fixed in the bearing box; the air storage part comprises a shell and a piston plate, an elastic cylinder is connected between the piston plate and a rear side plate of the shell, an air inlet valve is arranged on the rear side plate of the shell, a first sliding hole is formed in the top plate, on the right side of the dustproof net, of the bearing box, and the upper end of the air spraying pipe penetrates through the first sliding hole and extends into the piston plate. The elastic cylinder is communicated with the upper end of the gas ejector pipe through a one-way gas outlet valve arranged on the piston plate; the driving part comprises a connecting box and a rotating shaft, the interior of the connecting box is divided into an upper cavity and a lower cavity through a partition plate, the rotating shaft is rotationally arranged in the upper cavity, the upper portion of the rotating shaft is connected with a pull rope, and the other end of the pull rope backwards penetrates through the shell to be connected with the piston plate. According to the invention, the problem that the dustproof net of the outdoor communication cabinet for isolating dust is easily blocked by dust is solved.

The utility model provides a connector male seat, a connector female seat and a floating connector, and belongs to the technical field of connectors. The COB connector solves the problems that welding is difficult and the display effect is not ideal due to the fact that power signal pins and transmission signal pins of an existing COB connector are the same, the COB connector comprises a male seat body and a female seat body, two rows of contact pins are arranged on the male seat body, and the single row of contact pins on each side comprise contact pins of two power pins, contact pins of two grounding pins and contact pins of signal pins. The female seat body is provided with two rows of jacks, the single row of jacks at each side comprises jacks of two power supply pins, jacks of two grounding pins and jacks of signal pins, and the widths of the power supply pins and the grounding pins are greater than the width of the signal pins, so that the current bearing capacity of the floating connector is improved; the COB module is applied to the COB module.

The invention provides a driving protection circuit, a gate driving chip and equipment, and the driving protection circuit comprises a temperature detection circuit which is configured to output a first temperature detection signal when the temperature is greater than or equal to a preset temperature, and output a second temperature detection signal when the temperature is lower than the preset temperature; the first end of the overvoltage protection circuit is connected with the power supply voltage, the second end of the overvoltage protection circuit is grounded, the third end of the overvoltage protection circuit is connected with the output end of the temperature detection circuit, and the overvoltage protection circuit is configured to pull down the power supply voltage when receiving the first temperature detection signal and pull down the power supply voltage when receiving the second temperature detection signal. And the power supply voltage remains unchanged. The temperature detection circuit provides the first temperature detection signal or the second temperature detection signal for the overvoltage protection circuit according to the temperature change, so that the overvoltage protection circuit can adjust the power supply voltage along with the temperature to reduce the risk of circuit damage caused by the increase of the power supply voltage or the high temperature.

The invention discloses a streamer sterilization device and a control method thereof, electronic equipment and a storage medium. The streamer sterilization device comprises a power supply driving circuit for boosting, a plasma generator and a driving mechanism, the power supply driving circuit comprises a booster circuit, a current detection circuit and a microcontroller. The low-voltage side power supply supplies power to the positive electrode of the plasma generator after being boosted by the boosted circuit, and the current detection circuit is arranged between the negative electrode and the grounding end; the microcontroller is provided with a first port for outputting a PWM signal and a second port for outputting a control signal, the input side of the booster circuit is provided with a switching tube for conducting control based on the PWM signal, and the driving mechanism comprises a motor rotating based on the control signal and an adjusting mechanism driven by the motor and used for adjusting the distance between the positive electrode and the negative electrode. In this way, the adjusting mechanism is controlled to adjust the distance between the positive electrode and the negative electrode based on the control signal, and the influence of electrode aging in the working process of the streamer sterilization device is effectively reduced.

The invention belongs to the technical field of optical detection, and particularly relates to a broadband self-driven photoelectric detector which sequentially comprises a metal In point electrode, a metal Pd front electrode, a PdTe2 modified Sb2O3 two-dimensional thin film layer, a Si single crystal substrate and a metal In back electrode from top to bottom. The Sb2O3 two-dimensional thin film layer prepared through modification of PdTe2 is prepared through magnetron sputtering, chemical vapor deposition and other methods. Test results show that the prepared thin film device shows good self-driven light detection performance under illumination from deep ultraviolet to infrared light, and has the advantages of stable performance and the like.

The invention relates to the technical field of switch cabinets, in particular to a ventilation pressure relief device and a switch cabinet thereof.The ventilation pressure relief device comprises a top box and a mounting seat arranged on the rear side of the lower surface of the top box, and the mounting seat is sequentially provided with an exhaust assembly used for exhausting air in the switch cabinet, an overturning piece and an air inlet assembly used for blowing air into the switch cabinet from bottom to top; a driving part used for driving the overturning part and the air inlet assembly to rotate is arranged in the top box. In a normal state, heat dissipation work of the switch cabinet can be achieved through cooperation of the air inlet assembly and the exhaust assembly, the air blowing direction of the air inlet assembly is changed through driving, the overturning piece is in an open state, meanwhile, the top plate moves upwards to enable the exhaust hole to be communicated with the interior of the switch cabinet, and the purpose of rapid pressure relief is achieved.

The utility model discloses subway foundation pit dewatering monitoring equipment which comprises a transverse pipe, a measuring pipe is arranged in the middle of the transverse pipe, a power source is arranged at the top of the measuring pipe, a sealing shell is arranged on the side face of the measuring pipe, through holes which are evenly distributed are formed in the side face, corresponding to an inner cavity of the sealing shell, of the measuring pipe, and elastic leather sheaths are arranged in the through holes. Electric shock pieces are arranged on the sides, located in the sealing shell, of the elastic leather sheaths, resistor pieces are arranged in the positions, corresponding to the electric shock pieces, of the sealing shell, a warning indicator is arranged on a shell of the power source, and the electric shock pieces are connected in series. The subway foundation pit precipitation monitoring equipment is simple in structure, can be installed along the track of the foundation pit, can monitor precipitation ponding conditions at different positions in the foundation pit in real time, can give corresponding warning in time according to the ponding depth in the foundation pit, can achieve low-delay warning, does not need manual inspection and reminding, can save manpower and is convenient to use.

The invention discloses a digital multimeter with an anti-misoperation function, which comprises a shell, and is characterized in that the interior of the shell is of a hollow structure, an anti-skid patch is fixedly connected to one side of the shell, a threaded column is fixedly connected to the bottom of the inner wall of the shell, a circuit module is fixedly connected to the top of the threaded column, and the anti-skid patch is fixedly connected to the bottom of the inner wall of the shell. The top of the circuit module is fixedly connected with a first needle seat and a second needle seat, one side of the inner wall of the shell is fixedly connected with a heater, the top of the circuit module is fixedly connected with an electromagnetic circuit breaker, the electromagnetic circuit breaker comprises a rear contact plate, the bottom of the rear contact plate is fixedly connected with the first needle seat, and the bottom of the rear contact plate is fixedly connected with the second needle seat. According to the universal meter, the possibility that the universal meter slips in a low-temperature and humid environment is reduced, the situation that the circuit module is touched by mistake due to short circuit or the circuit module is damaged due to the fact that the circuit module is stained with water is reduced, and the reliability and the safety of equipment are improved.

The present invention discloses a plasma cutting device for producing marine cold storage, which belongs to the field of plasma cutting technology, and comprises: a base; a driving mechanism, the driving mechanism comprises a fixed frame, a mobile frame and a mounting plate, the mobile frame is fixedly mounted with a mobile plate on the top, the front side of the fixed frame is fixedly mounted with a first driving motor, and the output shaft of the first driving motor is fixedly connected with a first screw rod; a self-adjusting mechanism, the self-adjusting mechanism comprises a connecting plate, an adjusting plate and two balls, and the connecting plate is fixedly mounted on the bottom of the mounting plate; a plasma cutting gun, the plasma cutting gun comprises a plasma emitter and a cutting gun body arranged at the bottom of the plasma emitter. The present invention can automatically adjust the moving speed and working power of the plasma cutting gun when cutting workpieces of different thicknesses through the self-adjusting mechanism to meet the needs, thereby being able to adapt to the cutting work of complex components in marine cold storage.

The invention discloses a transformer power-saving device for efficient power production equipment, which comprises a box body and a power supply mechanism, a cooling plate and a grid plate are arranged in the box body, the power supply mechanism is electrically connected with the cooling plate, the grid plate is arranged on the upper side of the cooling plate, the inner side wall of the box body is also fixedly connected with a permeable plate, and the permeable plate is fixedly connected with the box body. The ventilation plate is arranged on the upper portion of the box body, a space formed by the upper portion of the box body and the ventilation plate is communicated with the outside, a plurality of ventilation openings are formed in the ventilation plate, and a control device is arranged in each ventilation opening. The device has the advantages that when the temperature in the box body is low, the memory spring is in a contraction state, so that the sealing block seals the air outlet, impurities such as dust, rainwater and liquid in external air cannot enter the box body, and a good isolation effect between the box body and the outside is guaranteed; the inside of the box body is communicated with the outside, so that ventilation and heat dissipation are realized, and the temperature inside the box body is reduced.

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.

A plug connector is designed in such a way that a mating part of the plug connector can be plugged together with the plug connector in a connection direction. The plug connector has a contact socket via which an electrical contact can be made with a correspondingly designed contact connector mating part. The contact socket is formed in such a way that an electrical contact with the plug connector mating part can be achieved via a contact pin and / or a mating contact socket of the plug connector mating part.

The utility model belongs to the technical field of power electronic devices, and particularly relates to a split mounting type common mode inductor which comprises a base, a fully-closed magnetic circuit magnetic core, a splicing coil and a splicing part, and the fully-closed magnetic circuit magnetic core, the splicing coil and the splicing part are arranged on the base. The edge of the base is provided with a first groove matched with the first direction of the full-closed magnetic circuit magnetic core. The splicing coil is arranged in the second direction of the full-closed magnetic circuit magnetic core in a sleeving mode, a through hole matched with the tail end of a terminal of the splicing coil is formed in the base, and the end of the splicing coil penetrates through the through hole and then is fixed to the base through the splicing part.

The invention provides an ultra-bright flash control system for a machine vision light source, which comprises a power supply, a controller, a power supply circuit and a control circuit, and is characterized in that the power supply can output different voltages to respectively supply power to the controller, the power supply circuit and the control circuit, and the power supply supplies power to the light source through the power supply circuit; the output end, connected with the power supply circuit, of the power source is a first output end, the controller controls on-off of the light source through the control circuit, the power supply circuit comprises an operational amplifier U9A and an MOS tube U7, the MOS tube U7 is a PMOS tube, the positive input end of the operational amplifier U9A is connected with the 65V output end of the power source through a first circuit, and the negative input end of the operational amplifier U9A is connected with the 65V output end of the power source through a second circuit. The output end of the operational amplifier U9A is connected with the grid electrode of the MOS tube U7 through a second circuit, the source electrode of the MOS tube U7 is connected with the first output end through a third circuit, a resistor R26 is arranged on the third circuit, the negative input end of the MOS tube U7 is connected to the part, located between the MOS tube U7 and the resistor R26, of the third circuit through a fourth circuit, and the drain electrode of the MOS tube U7 is connected with a first wiring end.

The utility model discloses a display panel and a display terminal. The display panel comprises a substrate and a thin film transistor, the thin film transistor comprises an active part, a gate insulating layer and a gate electrode, and the active part comprises a main body part and an edge part; the gate insulating layer is arranged on one side of the active part and comprises a first insulating part aligned with the main body part and a second insulating part aligned with the edge part; the gate is arranged on the surface of the gate insulating layer away from one side of the active part; wherein the orthographic projection of the second insulating part on the substrate at least covers the orthographic projection of the edge part on the substrate, and the capacitance of the gate oxide layer corresponding to the second insulating part is smaller than that of the gate oxide layer corresponding to the first insulating part. The capacitance of the gate oxide layer corresponding to the second insulating part is set to be smaller than the capacitance of the gate oxide layer corresponding to the first insulating part, so that the thin film transistor corresponding to the edge part is more difficult to open, the influence of a hump effect is reduced, the current of the thin film transistor in a working interval is increased, and the charging capability of the thin film transistor is improved.

The present disclosure provides a connector having a semiconductor cooling device, and an automobile. The connector includes a lead wire (22), a terminal (23) and a semiconductor cooling device (30). One end of the terminal (23) is connected to the lead wire (22), and the other end thereof is used to be connected to an external electrical structure. The semiconductor cooling device (30) includes a refrigeration portion (31) that absorbs heat of the terminal and a heat dissipation portion (32). The present disclosure mitigates the technical problems of high heat generation at a connection point between the lead wire and the terminal and frequent burnout of the connection point.

The invention provides a titanium dioxide nanosheet loaded iridium dioxide nanoparticle catalyst as well as a preparation method and application thereof. In an XRD (X-Ray Diffraction) spectrogram of the catalyst, a characteristic peak of titanium dioxide with an anatase structure and a characteristic peak of iridium dioxide exist. The preparation process of the catalyst is characterized in that reduction of a titanium source and complexation of an iridium element are realized by using a simple sol-gel method, and a complexed metal precursor is calcined to form a composite metal oxide. When the prepared material is used as a proton exchange membrane (PEM) acidic electrolytic cell anode catalyst, titanium dioxide is resistant to corrosion and has a large specific surface area, and compared with traditional commercial iridium black and iridium oxide catalysts, the prepared catalyst has the advantages of being low in cost, high in activity and long in durability.

The embodiment of the invention discloses a semiconductor structure and a preparation method thereof, and the semiconductor structure comprises a substrate, the surface of which is provided with a plurality of grooves which are arranged along a first direction and extend along a second direction; wherein the second direction is the channel length direction, the first direction and the second direction intersect, and the first direction and the second direction are parallel to the substrate plane; the channel layer is located on the substrate and covers the side wall and the bottom of the groove; and the gate structure is located on the channel layer and fills the groove.

The invention relates to a method for producing a material connection, in particular a welded connection, between an upper joining part (52) and a lower joining part (54), in which the following method steps are carried out: first, the upper joining part (52) is connected to the lower joining part (54); an upper engagement part (52) having a substantially flat first contact surface (66) is arranged above a lower engagement part (54) having a projection or projection (56). The arrangement is then supported by a load-bearing or support structure (50). A punctiform, flat welding head (64) is then positioned above the contact area (70) between the upper joining part (52) and the lower joining part (54). Finally, a material connection, in particular a welded connection, is produced in the contact region (70).