404 results about "Solid-state relay" patented technology

The invention discloses a power distribution management system of an intelligent charging pile, and belongs to the technical field of electric vehicle charging facilities and intelligent power grids. The load prediction module carries out space-time alignment fusion on historical data and real-time monitoring data to generate a power distribution demand prediction value, and the edge calculation controller executes a model prediction control algorithm based on multi-source data to generate a real-time control strategy containing relay time sequence parameters and a capacitance compensation scheme. And the dynamic power distribution adjustment module executes strategy parameters through the solid-state relay array and the parallel compensation capacitor bank. Self-adaptive adjustment of the power distribution network is achieved through a real-time monitoring-prediction-optimization closed-loop control mechanism, the harmonic content of the power grid is effectively reduced, the energy distribution efficiency of the charging pile group is improved, and the method is suitable for intelligent electric energy management of public charging stations and other scenes.

The invention discloses a server power supply board testing method and system, electronic equipment and a storage medium, and relates to the technical field of server power supply board testing, and the method comprises the steps: inputting a testing power supply signal to a server power supply board, and verifying the triggering accuracy of overvoltage protection and undervoltage protection functions of the server power supply board; after a preset power supply signal is converted by a solid-state relay, voltage loading and detection are carried out on a power supply input interface one by one channel, and after it is verified that a power supply protection function and an input interface state are normal, multi-type load fluctuation and communication protocol interaction requirements of a server are dynamically reproduced through a function analog signal. The output stability and protocol compatibility of the server power supply board are evaluated by combining an electronic load dynamic discharge test with a digital signal collaborative feedback mechanism, so that the technical problems of relatively low test efficiency and relatively high test cost of the server power supply board in related technologies are solved, and the purposes of reducing the test cost, improving the test efficiency and improving the test efficiency are achieved. And the test coverage rate is increased.

The invention discloses a gas generator frequent starting system without a starting motor and an implementation method, and belongs to the technical field of generator control. The gas generator frequent starting system comprises a charging and discharging circuit, a charging control circuit and a discharging control circuit; the storage battery is connected with an inverter and a plurality of super capacitors through a normally open contact of the relay, each super capacitor is connected with a coil of a solid-state relay, the storage battery is further connected with a rectification voltage stabilizer, the inverter and the rectification voltage stabilizer are connected with a coil of a gas generator, the coil of the gas generator is further connected with a coil KMC-0 of an 8 # relay, and the coil KMC-0 of the 8 # relay is connected with the storage battery. A starting mode of directly driving a generator coil is adopted, an external starting motor is not needed, and therefore the problems that a conventional starter slips, cannot be separated and is abraded are solved.

The invention discloses an automatic multi-channel solid-state relay testing device, and belongs to the technical field of electrical element detection and intelligent manufacturing testing. The device comprises an insulation and voltage resistance test module, a direct current function test module, an alternating current function test module, an automatic load test module and an MES execution management module. The device has the advantages of complete testing functions, high precision, high automation degree, wide adaptation range and the like, and is suitable for delivery inspection and life verification of various solid-state relays.

The invention discloses an intelligent insulation parameter dynamic monitoring and regulation system based on a GD32 microcontroller, and belongs to the field of power electronic insulation monitoring. According to the system, a distributed monitoring network is constructed by taking GD32 as a core processor, a multi-channel time-sharing sampling and dynamic impedance measurement algorithm is integrated, GA / GB dual-channel independent sampling is realized by virtue of a state machine, and the sampling efficiency is improved by 80% compared with that of a traditional scheme. A programmable resistance network and a low-noise operational amplifier are adopted, 1 pF to 100 nF impedance matching and 5-200-time dynamic gain adjustment are achieved, an optical coupler switching dynamic impedance measurement method is originally created, four sets of voltage are adopted for time-sharing conduction of a solid-state relay, and 1.5% high precision is achieved through an improved voltage division model. LC-pi type filtering is adopted at a signal input end, and the high-frequency noise suppression ratio is larger than 20 dB; and a CAN module is newly added, so that a CAN2.0B extension frame and an adjustable Baud rate of 10k-1Mbps are supported. Actual measurement shows that the system can measure 10-65M omega insulation resistance in new energy and rail transit scenes, the dynamic response is smaller than or equal to 200ms, the system is suitable for the fields of medical equipment, industrial sensors and the like, and the overall performance is improved by three times compared with that of a traditional scheme.

The invention discloses an active sleep cooling device, and belongs to the field of intelligent temperature control. According to the equipment, semiconductor chilling plates (20-100 W, COP > = 1.5 and delta T = 25 DEG C) are adopted to form a refrigeration module, the cold end is connected with a circulation pipeline through a buckle type water cooling head, and the hot end is coated with dynamically-adjusted heat-conducting silicone grease (the contact pressure is 0.1-0.3 MPa). The liquid cooling system (the flow is automatically adjusted along with power and temperature difference) is innovatively designed to be in redundancy fit with the air cooling system, and the hot end is less than or equal to 65 DEG C. Non-contact conduction of cooling liquid is achieved through the composite uniform temperature layer (cotton and polyurethane), and the temperature difference gradient smaller than or equal to 2 DEG C / cm is formed. Precise temperature control of + / -0.5 DEG C is achieved based on an STM32 PID control system (the parameter adjustable range Kp is equal to 0.8-1.2), and the temperature is reduced by 7 DEG C or more within 10 minutes. The safety system integrates a condensation sensor (which is triggered for 10 minutes after the humidity is greater than or equal to 70%) and a double-metal protector (cold end lt; 13 DEG C / hot end gt; 65 DEG C), via a solid state relay (in response to lt; and the double protection is realized. The power consumption of the whole machine is smaller than or equal to 120 W, the noise is smaller than or equal to 30 dB (A), the energy efficiency is improved by 50% compared with a traditional scheme, and 72-hour hydrolysis test (the strength is kept to be larger than or equal to 90%) and IP54 certification are passed. The equipment can be integrated on a mattress or a pillow or used as an independent device, is suitable for family sleep optimization, medical care and outdoor scenes, and has remarkable market application value.

The invention discloses an electrical stimulation device for cycle-by-cycle myoelectricity feedback regulation. An electrical stimulation circuit of the electrical stimulation device is used for releasing a stimulation pulse cycle signal; the electrical value acquisition circuit is used for acquiring electrical value signals of muscle nerves during a stimulation interval and feeding back the electrical value signals to the electrical stimulation circuit; the electric value acquisition circuit comprises an acquisition input module, a frequency selection amplification module and a charge discharge module; the acquisition end of the acquisition input module is connected with the frequency-selecting amplification module through the solid-state relay; a bleeder resistor of the charge discharge module is connected with the frequency-selecting amplification module through a solid-state relay; by adopting the solid-state relay, higher switching speed and silent switching can be realized, and the cycle-by-cycle quick switching of acquisition and stimulation is realized. And the electrical stimulation circuit adjusts electrical stimulation parameters and intensity of stimulation physiotherapy according to the feedback signal, so that the stimulation parameters are adjusted and controlled periodically one by one, and the physiotherapy effect is more accurate and more effective.

The invention discloses an electric aircraft high-voltage power distribution control method and system, a medium and a product thereof, and relates to the technical field of high-voltage power distribution, and the method comprises the steps: receiving a DC power supply outputted by a power battery pack, and achieving the power-on soft start through a pre-charging loop; distributing electric energy to a motor controller, an auxiliary power supply module, an air conditioning system and an electric heating system through a power distribution level according to the load priority; the power distribution stage integrates multiple solid-state relays or contactors to form load branches. An independent protection unit is configured for each load branch at a load output stage, and the independent protection units monitor voltage, current and temperature parameters in real time and execute fault isolation operation when the monitored parameters exceed corresponding preset thresholds. According to the invention, high-voltage power distribution control with load priority scheduling and branch-level rapid fault isolation is realized under the condition of high power density.

The invention discloses a double-layer heating cooperative temperature control structure, which adopts a double-layer structure comprising an outer-layer heating module, an inner-layer heating module and an isolating layer, wherein the outer-layer heating module is used for quickly heating and compensating heat loss through a spirally wound high-power density element; the inner layer heating module is embedded into an experimental object through a net-wound low thermal inertia heater to realize local fine temperature control, and thermal coupling interference between the inner layer heating module and the experimental object is reduced through an aerogel or ceramic fiber isolation layer with the thickness of 5-10 mm. The cooperative temperature control unit integrates fuzzy PID composite control, a self-adaptive robust control algorithm and multi-mode strategy dynamic adjustment, thermal coupling strength is fed back in real time through a heat flow sensor, an outer-layer high-power element and an inner-layer low-thermal-inertia element are controlled in a decoupling mode through a solid-state relay, and a double-ring framework is formed. The problems that a traditional single-layer heating system is large in temperature gradient, low in response speed, high in energy consumption and the like are solved, and the temperature control precision and the energy efficiency ratio are remarkably improved.

The invention discloses a double-range current measurement system based on a solid-state relay, and relates to the technical field of current measurement. The system comprises a closed-loop Hall current sensor, a first shunt resistor, a second shunt resistor, a solid state relay (SSR), a Hall conditioning IC and an external controller. Two shunt resistors with different resistance values are dynamically switched through a solid-state relay, and compatibility of low-current high-precision measurement and high-current wide-range measurement is achieved. The method solves the problems that the precision and range of an existing single-range sensor are difficult to consider, double sensors are high in cost, mechanical relays have defects and the like, has the advantages of low cost, high reliability, good measurement precision and the like, and is suitable for wide-dynamic-range current measurement scenes such as an energy storage system and the like.

A control device includes a triac and a first diode that is series-connected between the triac and a first terminal of the device that is configured to be connected to a cathode gate of a thyristor. A second terminal of the control device is configured to be connected to an anode of the thyristor. The triac has a gate connected to a third terminal of the device that is configured to receive a control signal. The thyristor is a component part of one or more of a rectifying bridge circuit, an in-rush current limiting circuit or a solid-state relay circuit.

The comfort control system includes an auxiliary heat source, a temperature sensor, and a controller. The auxiliary heat source may be coupled to a heat pump. The sensor and / or the controller may be communicatively coupled to the auxiliary heat source and / or the heat pump. The controller may engage the auxiliary heat source to provide supplemental heat to selectively increase the air temperature output from the heat pump system. The controller may include a pulse width modulation (PWM) controller and a solid-state relay (SSR). The SSR may efficiently engage and disengage the auxiliary heat source. The PWM may regulate the auxiliary heat source by precisely adjusting the electrical pulse duration of the SSR. Advantageously, the use of the PWM with the SSR may operate more efficiently than known methods to use less auxiliary heat while maintaining thermal comfort.

The invention provides a rapid switching dual-power switch device and a control method thereof, and the device is characterized in that the device comprises a main power input module, a standby power input module, a rapid switching module, a control module, a monitoring module, and an output module; the main power supply input module, the rapid switching module and the output module are connected in sequence; the main power supply input module and the standby power supply module are connected with a monitoring module; the rapid switching module is connected with the control module; the output module is connected with a load and used for outputting electric energy. Millisecond-level power supply switching is achieved through the solid-state relay and the power semiconductor device, and the system has the advantages of being high in switching speed, reliability and intellectualization and is suitable for a high-reliability power supply field.

The present invention discloses a motor speed regulation system. The pulse signal generation circuit in this application can generate a pulse signal corresponding to the target speed set by the user, and the solid-state relay can be turned on and off under the control of the pulse signal, so as to control the input voltage of the motor to be adjusted, and the motor speed can be controlled to the target speed. The speed selection device, the pulse signal generation circuit, and the solid-state relay circuit can all be composed of conventional electronic components. Therefore, the volume of the motor speed regulation system in this application is usually much smaller than that of the reactor, occupying less space and being convenient for transportation. In addition, the solid-state relay itself can achieve isolation between the control end and the load end, preventing the large current of the motor from affecting the control circuit, and has high safety.

The present invention relates to an AC solid-state relay with a state detection function, which belongs to the technical field of AC solid-state relays and includes an input control module and an output detection module. The input control module is connected to the output detection module and is responsible for controlling the operation of the switching device in the output detection module. The output detection module is connected to the load and is responsible for detecting and supplying power to the load under the control of the input control module. The AC solid-state relay with a state detection function provided by the present invention realizes fault detection of thyristor short circuit, external load disconnection and no power supply at the power supply network end by setting the output detection module. Since the overall circuit structure is simple, the volume of the entire solid-state relay is reduced. In addition, since the output detection module leads to a first test terminal and a second test terminal, it can be conveniently connected to an external MCU, facilitating remote monitoring.

The invention discloses a molten salt energy storage device and method based on nitrate, and the device comprises a plurality of resistors, a plurality of MOS tubes, a plurality of operational amplifiers, a plurality of diodes, a triode, a capacitor, a solid-state relay, a potentiometer, and a counter. The output end of an operational amplifier U7 in the plurality of operational amplifiers is connected with five pins of the potentiometer U2, and the anti-phase end inputs a temperature parameter signal IN1; the in-phase end is connected with eight pins of the potentiometer U2 and one end of the resistor R5; the six pins of the potentiometer U2 are connected with one end of a resistor R16 and the drain electrode of a PMOS tube Q2; the grid electrode of the PMOS transistor Q2 is connected with the output end of the operational amplifier U8, and the source electrode is connected with a power supply and meets the positive voltage requirement; the inverting end of the operational amplifier U8 is connected with a reference signal, and the in-phase end of the operational amplifier U8 is connected with the grid electrode of the NMOS tube Q1, one end of the resistor R4 and the collector electrode of the NMOS tube Q1; a base electrode of the triode U1 is connected with one end of the resistor R6; the drain electrode of the NMOS tube Q1 is connected with the other end of the resistor R6, one end of a resistor R7 and four pins of the solid-state relay U3; the other end of the resistor R7 is connected with one end of the capacitor C1.

The application discloses a plug-in electronic normally closed solid-state relay with LED indication and relates to the technical field of solid-state relays, which comprises a protection assembly for protecting the plug-in electronic normally closed solid-state relay; and a first movable plate located at one end of the protection assembly and movably connected with the protection assembly. The application has the beneficial effect that since the second clamping tooth on the dialing shaft is in meshing connection with the third clamping tooth on the left side of the first movable hole in the first linkage disc, a counterclockwise dialing force can be generated on the first linkage disc, the linkage disc is rotated clockwise under the action of the rotating rod, the first linkage disc, the first sleeve, the first sleeve rod and the first movable plate are upwardly deviated, the first movable plate is rotated clockwise with the rotating column as the base point, the gap covered by the bottom of the first movable plate is directly exposed, some slight open-circuit or poor contact conditions can be manually adjusted, and simple maintenance can be realized without completely disassembling the solid-state relay.

This utility model discloses a heat dissipation mechanism for a solid-state relay, including a housing for mounting the relay body, a top cover fixedly connected to the inner wall of the housing, an air inlet and an air outlet on both sides of the housing, an air inlet pipe fixedly connected to one side of the housing corresponding to the air inlet, a filter screen fixedly connected to the inner wall of the air inlet pipe, a support shaft fixedly connected to one side of the housing, a rotating arm rotatably connected to one end of the support shaft, and bristles fixedly connected to the side of the rotating arm near the filter screen. When the bristles rotate to below the air inlet pipe, a movable column contacts a fixed column, and the fixed column presses against the movable column, causing the movable column to move towards the side closer to the filter screen. This compresses a spring and drives a sliding rod to move, which in turn moves a movable plate away from the rotating arm, cleaning the bristles. This allows the heat dissipation mechanism for the solid-state relay to effectively clean the bristles, preventing dust adhering to the bristles from affecting the subsequent cleaning of the filter screen.

The utility model relates to the technical field of optical precision injection molds, and discloses an efficient optical precision injection mold temperature control system which comprises a rectifier and a power line. The direct-current positive and negative rotation solid-state relay is electrically connected to Peltier temperature control equipment through a power line, a heat dissipation device is arranged on the top of the Peltier temperature control equipment, a fixed mold core is arranged outside the Peltier temperature control equipment, and an insert is arranged on the upper portion of the fixed mold core; and one end of the ventilation pipeline is fixedly connected to the output end of the air blower. According to the utility model, the direct current rectified by the rectifier is introduced into the electric copper sheet through the direct current positive and negative rotation solid-state relay, so that the problem of non-uniform product shrinkage due to limited heat transfer performance of water and oil in the prior art and scheme such as water and oil circulation temperature control is solved.

The utility model relates to a remote control device for medical equipment, which comprises a signal transmitting mechanism and a signal receiving mechanism, the signal transmitting mechanism is in wireless signal connection with the signal receiving mechanism, and the signal transmitting mechanism comprises a wireless signal transmitting module and a plurality of pedals. The signal receiving mechanism comprises a wireless signal receiving module and a plurality of signal transmission units, the remote control device for the medical equipment adopts an MOSFET output solid-state relay with an optical coupling isolation function, and then the wireless signal transmitting module of the STR885 model is matched with the wireless signal receiving module of the SRX885 model, so that the remote control device for the medical equipment is realized. According to the relay, on-off control of an external load can be achieved, the relay does not need to consider the voltage matching problem of an original driving circuit, mechanical contact bidirectional conduction is avoided, the adaptability and compatibility are improved, and the practical value is improved.

The present invention relates to a solid-state relay based on a printed circuit board. A bidirectional solid-state switch includes: a first bus bar; a second bus bar; a first solid-state switch implemented on a first printed circuit board (PCB), which includes a first control terminal, a first terminal electrically connected to the first bus bar, and a second terminal; and a second solid-state switch implemented on a second PCB, which includes a second control terminal; a third terminal electrically connected to the second terminal of the first solid-state switch, and a fourth terminal electrically connected to the second bus bar.

The application discloses a solid-state relay and a manufacturing method thereof, and comprises the following steps: S1, a power component manufacturing process; S2, a printed board component manufacturing process; S3, combining and packaging the power component manufactured through the step S1 and the printed board component manufactured through the step S2 to form an integral whole; the manufacturing method of the solid-state relay provided by the application improves the production efficiency and reduces the cost by separately processing and combining the power component and the printed board component; the solid-state relay provided by the application is reliable and durable according to the above manufacturing method; the solid-state relay provided by the application is provided with a built-in driving circuit, is suitable for AC power grid terminal control, has reliable performance guarantee, and can effectively reduce the conducted disturbance.

The invention discloses a high-reliability miniature solid-state relay, which comprises a plastic shell, a relay core and a relay core, wherein the plastic shell is formed by injection molding; the integrated power module comprises two silicon carbide (SiC) MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) chips which are connected in parallel, and the chips are connected through a silver sintering technology; the multilayer ceramic substrate is prepared by adopting an LTCC (Low Temperature Co-Fired Ceramic) process and comprises a first insulating layer and a second insulating layer; the invention provides a gel sealing system and a pin assembly. The high-reliability miniature solid-state relay is light in weight, lower in cost and longer in service life. The invention further discloses a manufacturing method of the high-reliability miniature solid-state relay.

This invention discloses a control circuit based on a hybrid switching timing of relays and thyristors. By connecting the thyristor in parallel with the relay, the thyristor bears the load current before and after the relay is closed, thus avoiding contact arcing. The control unit triggers the thyristor at the AC zero-crossing point, reducing switching losses and electromagnetic interference, and combines an RC snubber circuit with optocoupler isolation to improve reliability. This device can increase the relay lifespan from 20,000 cycles to 500,000 cycles, and its cost is only 1 / 3 that of a solid-state relay, making it particularly suitable for soft-start control of high-current inductive loads.

The invention provides a substrate processing apparatus and a substrate processing method, which can perform stricter control when substrate processing in which AC voltage needs to be applied to a load part is performed. This substrate processing device is provided with: an ON signal generation unit (22) that periodically outputs an ON signal; and a relay control unit (23) that, when an ON signal that is shorter than the half-wave time over time is input, performs an operation that does not cause the ON signal to pass through the solid-state relay (24) and prolongs the ON signal that is input next time over time of the ON signal that does not pass through the solid-state relay (24). An extended turn-on signal having a time length longer than the half-wave time of the turn-on signal is generated and transmitted to the solid-state relay (24).

The utility model discloses an automatic temperature control sampling device capable of prolonging system calibration response time. The automatic temperature control sampling device comprises a sampling unit and a temperature control unit, according to the utility model, the pneumatic angle seat valve is introduced at the outlet of the sampling pipe, which is a core component of the sampling unit, and the valve is tightly matched with the sealing ring by driving the telescopic hammer through the cylinder, so that the efficient and reliable cut-off operation of a sampling pipe gas circuit is realized; in the system calibration process, the standard gas is effectively limited to circulate in the device, the problems that the concentration of the standard gas is reduced and the calibration time is prolonged due to gas leakage in a traditional design are solved, and therefore the accuracy and high efficiency of the calibration process are ensured. According to the design of the temperature control unit, the heater is directly arranged outside the cavity in a sleeving mode, and accurate temperature control is achieved through the temperature controller and the solid-state relay. According to the integrated design, the complex installation process that a temperature control box needs to be externally hung or cable leads need to be additionally arranged in a traditional probe is simplified, and the manufacturing cost and the maintenance difficulty are greatly reduced.

The utility model discloses full-automatic temperature detection equipment for a protector, relates to the field of temperature detection equipment, and solves the problems that the reading and recording of temperature values depend on manual operation, so that the detection precision is not high, the detection is easily influenced by human factors, and the working efficiency is high. Comprising a PLC control module, an oil tank control system, a display screen, a transmission mechanism, a detection mechanism, a sorting mechanism, a feeding mechanism, a discharging mechanism, a stirring mechanism and a machine body frame. The oil tank control system consists of a PLC (Programmable Logic Controller), a servo driver, four oil tanks (a low-temperature tank, a high-temperature tank, a low-return tank and a high-return tank), a heating pump solid-state relay and a cooling pump contactor, the four oil tanks are electrically connected with the machine body frame, the PLC controls the servo driver, the equipment replaces manual repeated labor, the labor intensity of workers is reduced, and compared with a manual test process method, the test efficiency is greatly improved. The production efficiency is improved, the unit labor cost is reduced, the quality of the protector is improved, and the market competitiveness of the protector is improved.

1. The name of this design product: solid-state relay (guide rail type). 2. Purpose of this design product: solid-state relay used for control circuits. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

An electrical distribution system for personal water craft. The primary components include a digital switching device; a series of power lines; and one or more remote controls, a control panel, or both. The digital switching device is preferably a bank of solid state relay switches controlled by an MCU. The control panel also has an MCU. The control panel MCU communicates with the digital switching device MCU. This allows signals from the control panel to travel on a single communication cable to the digital switching device, significantly reducing the control panel footprint compared to prior art control panels. When a radio frequency (RF) receiver is provided, the electrical distribution system may receive signals from a remote control. The remote control may be utilized in addition to or in lieu of the control panel. Power lines run from the digital switching device to wherever power is desired in the vessel.

The utility model provides an electrode switching device. The electrode switching device comprises a controller, an H-bridge upper tube circuit, an H-bridge lower tube circuit and a solid-state relay, the controller is electrically connected with the solid-state relay; one end of the H-bridge upper tube circuit is connected with the first power supply, and the other end of the H-bridge upper tube circuit is electrically connected with the solid-state relay; one end of the H-bridge lower tube circuit is electrically connected with the H-bridge upper tube circuit, and the other end of the H-bridge lower tube circuit is grounded; the H-bridge upper tube circuit is switched on to switch a positive electrode, and the H-bridge lower tube circuit is switched on to switch a negative electrode; the controller is used for controlling on or off of the solid-state relay; and the solid-state relay is used for switching on or switching off the H-bridge upper tube circuit. The H-bridge upper tube circuit, the H-bridge lower tube circuit and the solid-state relay are integrated on one electrode switching device, the electrode switching device can be directly connected with a direct-current power supply, free switching of the positive electrode and the negative electrode is controlled, the manufacturing cost is low, and the universality of the electrode switching device is also improved.