277results about How to "Control on and off" patented technology

The invention discloses a proportional electromagnetic valve for an electrically controlled high-pressure common-rail fuel injection system of a diesel engine and relates to an electromagnetic valve. A position at which a fixed iron core (8) and a movable iron core (3) of the electromagnetic valve attract each other is a conical polar plane. The fixed iron core (8), the movable iron core (3), a guide pipe (18), a spiral spring (15), an electromagnetic coil (4), a square iron core (19), a shell (14) and a valve body (1) jointly form the electromagnetic valve in an assembling way. When driving current is input into the electromagnetic coil, a magnetic field is generated through a magnetic path in the valve, electromagnetic force with magnitude which is in proportion with the magnitude of the driving current and is not related to a stroke is generated relative to the movable iron core, the movable iron core is enabled to overcome spring force to move, the movable iron core stops moving at a balance point of the two kinds of force and therefore is kept at a stable position, and the movable iron core can proportionally and continuously move according to the magnitude of the driving current to control the opening of the valve. Under complex working conditions under which the diesel engine works, the electromagnetic valve not only can stably control the on/off of a fuel path, but also can accurately and proportionally control the flow of the fuel path according to the driving current.

The invention relates to a DC power supply product, in particular to a wide-range DC power supply with the constant power output characteristic. The power supply comprises a preceding-stage DC power supply, a voltage reducing circuit, a sampling circuit and a CPU control circuit. The voltage reducing circuit comprises an MOS switching tube, a diode, an energy storage inductor, a current sampling resistor, an output filtering capacitor and a load resistor. The sampling circuit collects the current, the voltage and the power value of a load and feeds the current, the voltage and the power value of the load back to the CPU control circuit. The CPU control circuit outputs a control signal by comparing sampling values and given values to control on-off of the MOS switching tube. In a certain power range, the high-voltage or large-current output capability can be achieved respectively. Meanwhile, constant-power output in a working zone can be achieved, and therefore the automatic range outputting characteristic is achieved.

The invention relates to a charging pile for charging of new energy automobiles. The charging pile comprises a body, a center control mechanism and a charging mechanism. The charging mechanism comprises a fixed socket, a charging gun, a wire and a wire winding mechanism. The wire winding mechanism comprises a driving assembly, a transmission assembly and a wire winding assembly. The transmission assembly comprises a belt wheel, a driven shaft, a transmission gear, a driving gear and a transmission frame. The wire winding assembly comprises a wire frame and a wire winding wheel. A working power module comprises a working power circuit. According to the charging pile for charging of the new energy automobiles, the wire at the position of the charging gun after charging is completed is reliably wound through a limiting mechanism, and therefore the practicality of the charging pile is improved. Thus, in the working power circuit, an integrated circuit acquires and detects input and output voltage in real time, therefore, a triode is controlled to be switched on and off, and the reliability of the charging pile is improved.

The invention relates to the technical field of machines. Pulse cleaning equipment for a water supply pipeline comprises pipeline cleaning equipment. The pipeline cleaning equipment is provided with a pulse air outlet. The pulse air outlet of the pipeline cleaning equipment is detachably connected with the pipeline to be cleaned. The pipeline cleaning equipment is further provided with a high-pressure air inlet. The high-pressure air inlet of the pipeline cleaning equipment is connected with an air compressor and communicated with the pulse air outlet through a first pipeline. An electromagnetic valve used for controlling on-off of airflow in the first pipeline is arranged on the first pipeline. The first pipeline is located inside the pipeline cleaning equipment. The electromagnetic valve is connected with a control system. The control system is also connected with a clock module. According to the pulse cleaning equipment for the water supply pipeline, the electromagnetic valve is controlled to open and close intermittently through the clock module, so that air pulses are achieved; through the combination of water flow in the pipeline to be cleaned and the high-pressure air delivered intermittently, the pipeline cleaning effect is improved, and cleaning dead corners are avoided while the pipeline is not corroded.

The invention relates to a variable-frequency air conditioning system with large refrigeration capacity, an air conditioner and a control method for a throttling device of the variable-frequency air conditioning system. The variable-frequency air conditioning system comprises a controller, the throttling device, a four-way valve, a condenser, an evaporator, a compressor, a gas-liquid separator, a pressure sensor and an exhausting temperature wrap. The throttling device comprises an electronic expansion valve and a capillary throttle valve. The electronic expansion valve communicates with the condenser and the evaporator. The capillary throttle valve communicates with the condenser and the evaporator. The air conditioner comprises the variable-frequency air conditioning system with large refrigeration capacity. The control method comprises the following steps that the exhausting pressure value and the exhausting temperature value of the variable-frequency air conditioning system are obtained; when the exhausting pressure value is smaller than the preset pressure threshold, the temperature difference between the exhausting temperature value and the preset pressure threshold is calculated; the condition that the temperature difference is within the target exhausting temperature range or not is judged; if yes, a control signal is generated; and the control signal is sent to the throttling device. Different target exhausting temperature values can be set according to different environment temperatures, so that the reliability of the variable-frequency air conditioning system is improved.

The invention relates to a solar power supply control system, which comprises a solar photovoltaic panel, a storage battery, a direct current stable-voltage power supply and a controller, wherein the controller is connected with the solar photovoltaic panel, the storage battery and the direct current stable-voltage power supply and can control the on and off of the solar photovoltaic panel, the storage battery and the direct current stable-voltage power supply. The invention also relates to a solar power supply control method. In the method, when sunlight is sufficient, photovoltaic power is used preferably; when the voltage or current of the photovoltaic panel reduces to a preset value, the lead-acid storage battery is switched to and used; and the direct-current stable-voltage power supply is switched to only when both the photovoltaic power and the lead-acid storage battery can be used. In the invention, the solar power supply, the storage battery and the common stable-voltage direct-current power supply are integrated to form a diversified solar power supply system which can be switched automatically without disturbance, and the solar power supply system is free from the influences of weather conditions such as season turning, day and night alternation, weather change and the like.

Provided is an automobile intelligent relay. A control circuit is connected between the two input ends of an original relay in series and is mainly composed of a single-chip microcomputer and a sensor, the single-chip microcomputer is connected with the sensor, and the body of the control circuit is packaged in an outer shell of the relay. The automobile relay is a complete system, and can be controlled to be powered on and off by itself when necessary.

The invention relates to an air managing system of a lithium-air secondary battery pack and solves the technical problems that the air managing system of the lithium-air secondary battery pack in the prior art occupies a large space, consumes great energy and generates noises in the working process. The air managing system of the lithium-air secondary battery pack comprises a natural wind air supplying system, a forced air supplying system and a lithium-air secondary battery pack power supply system, wherein the natural wind air supplying system monitors the air flow speed of an outer environment to control a working state of the forced air supplying system, so as to continuously supply air to the lithium-air secondary battery pack. According to the air managing system of the lithium-air secondary battery pack, disclosed by the invention, the occupying space of the battery pack is small; the high-speed air can be sent out to move under relatively-low power loss; and the noises are small in the working process. The air managing system disclosed by the invention can realize the automatic control, can also provide sufficient air flows for the lithium-air secondary battery pack, and is suitable for other metal-air batteries.

The invention discloses an integrated type filter fuel oil heating and water level sensing device, and relates to the technical field of diesel vehicle fuel oil filtering. The device comprises a shell. An oil inlet and an oil outlet are formed in the shell. The oil inlet is communicated with an oil leak opening, leading to a filter, in the bottom of the shell. The bottom of the shell is connected with an oil outlet pipe. The oil outlet pipe is communicated with the oil outlet and can be inserted in the filter from an upper cover opening of the filter. A heating assembly is arranged in the oil outlet pipe, and a circuit control module of the heating assembly is arranged in the shell and can be connected with a vehicle-mounted power source through a wire. A water level sensor is arranged at the bottom of the oil outlet pipe and can be connected with a vehicle ECU through a wire. The device is rapid in heat transfer and high in heat efficiency and safety coefficient, the space is saved, heating, temperature control and water level monitoring can be integrated conveniently, and the defects in existing heaters are overcome fundamentally.

The related control method for LED used as decorative lighting lamp comprises: applying IR technology to remote control the LED, using MCU or ASIC to code or random control signal, arranging an external analog electric signal input interface and pre-set remote control coding data memory, using embedded-MPU to receive signal and generate digital PWC signal to control RGB current of every LED. This invention is benefit to build individual dynamic lighting atmosphere.

The invention discloses an anti-creep alarming power distribution box, which comprises a power distribution box body, wherein the left side of the power distribution box body is fixedly connected with two hinges through bolts; the power distribution box body is hinged with a box door through the hinges; an opening handle is clamped in the middle of the right side of the box door; a door lock is embedded into the opening handle; a power distribution box is clamped in the middle of the power distribution box body; a zero-sequence current transformer is clamped in the middle of the left side of the power distribution box body; a current sensor is welded at the lower part of the left side of the power distribution box body; a controller is welded in the middle of the bottom end of the power distribution box body; a storage battery fixing box is arranged at the right side of the bottom end of the power distribution box body; and an alarm box is arranged at the right side of the top end of the power distribution box body. According to the anti-creep alarming power distribution box, emergency measures are made and an alarm is given when the power distribution box body is in a short circuit or electric leakage through arranging the controller and an alarm apparatus in the power distribution box body, thereby achieving the targets of reducing the potential danger and improving the power distribution security; and meanwhile, the inside of the power distribution box body can be cooled by the power distribution box.

An infrared induction ceiling lamp comprises an LED light source module capable of emitting light, and further comprises a controller having data analysis and intelligent control functions, an illumination sensor used for detecting external illumination intensity, and an infrared ray detection device used for detecting infrared rays. The controller is connected with the LED light source module, the illumination sensor and the infrared ray detection device. Compared with traditional technologies, the infrared induction ceiling lamp is provided with the controller, the illumination sensor and the infrared ray detection device on the basis of the prior art, solves the unintelligent problems that conventional illuminating lamps waste electric energy and need to be turned on or off with hand, is more convenient to use and saves energy. The invention further provides a monitoring system comprising a camera and the infrared induction ceiling lamp. The infrared induction ceiling lamp comprises the controller, and the controller is connected with the camera. The camera is controlled by the infrared induction ceiling lamp and started to record videos only when external infrared rays change, recording of mass useless videos is avoided, and energy is saved.

This invention relates to automobile high voltage DC insulation monitor circuit, wherein two input ends are connected to the high voltage output end; one end of the filter is connected to ground and the two output ends of the filter are connected to the two input ends of the protector; two output ends of the protector are connected to the two input ends of amplifier; output end of the amplifier is connected to the other end of the voltage comparing circuit; one end of the high voltage is connected to the one end of the division circuit and the other end of the division circuit is connected to the input end of the voltage comparing circuit.

The invention relates to a leveraged input device micro switch key which can be used in computer peripherals, electronic instruments and man-machine control systems. The leveraged input device micro switch key comprises a switch control body and a PCB (printed circuit board) which are split, and the switch control body can be replaced and chosen as needed. The switch control body comprises a leveraged touch structure, a switch function structure, and a pressing section falling structure. The leveraged touch structure is employed to achieve an amplified trigger stroke through a micro stroke so as to control the switch function structure, and the pressing section falling structure produces clear falling sound of the pressing section of the key. The leveraged touch structure is a sliding lever structure with adjustable pressing force or a fixed lever structure with single fixed pressing force. The switch function structure is a light path type photoelectric switch function structure or a metal contact point/elastic sheet contact type switch function structure.

The invention discloses a mahjong tile transiting and conveying device of an automatic mahjong machine. The mahjong tile transiting and conveying device comprises a fixed frame, a mahjong tile inletting turnplate arranged on the fixed frame, an outer stop ring surrounding outside the mahjong tile inletting turnplate and fixed on the fixed frame, and an inner stop ring arranged on the inner side of the mahjong tile inletting turnplate and rotates along with the same, a mahjong tile outlet, a mahjong tile inlet and a mahjong tile return port are arranged on the outer stop ring, the mahjong tile outlet is used for outputting mahjong tiles, and the mahjong tile inlet and the mahjong tile return port are communicated with a mahjong tile shuffling disc. The mahjong tile transiting and conveying device of the automatic mahjong machine has the advantages that no magnet is required, operating noise is effectively lowered, production cost is decreased, the mahjong tile inlet can be immediately blocked off after the mahjong tiles in one group of tile turnover mechanisms are enough in amount, extra mahjong tiles are enabled to return back to the tile shuffling disc to enter the next group of mechanisms as soon as possible, tile shuffling time is shortened, and tile shuffling accuracy is increased.

The invention discloses a clinical cooling device for emergency treatment. The clinical cooling device comprises a pillow body, a hook fastener bandage and a water bag, wherein the upper portion of the pillow body is covered with a temperature conduction pad; a water storage tank is installed in the middle of the lower portion of the pillow body; water pipes are connected to the front side and therear side of the water storage tank; circulating pumps are installed in the middles of the water pipes; a display screen is installed on the outer wall of the left side of the water storage tank; a controller is connected to the right end face of the display screen; battery boxes are installed on the left side and the right side of the water storage tank; battery packs are arranged in the batteryboxes; the hook fastener bandage is connected to the lower portion of the left side of the pillow body; a loop fastener bandage is installed on the lower portion of the right side of the pillow body;the water bag is arranged in the pillow body; and a first groove is formed in the middle of the upper surface of the pillow body. The whole cooling device body is arranged to be in the shape of a pillow, so that a cooling mechanism and the pillow are effectively combined, the cooling device can be used as the pillow when cooling is not needed, and the functionality of the whole device is expanded.

The invention relates to a four-way wireless remote control switch. The four-way wireless remote control switch comprises a wireless emitting system and a wireless receiving system, wherein the wireless emitting system comprises a key module, an encoding module and a wireless emitting module; the wireless receiving system comprises a wireless receiving module, a decoding module and a relay module. According to the four-way wireless remote control switch, firstly, the bit number of a required control circuit is input through a key circuit, an encoding circuit is simultaneously started to generate a coded pulse signal carrying address coding information and switch state information, and the signal is emitted out through a wireless emitting circuit; a wireless receiving circuit carries out encode address confirmation on the received coded pulse signal through a decoding circuit and confirms whether an encode address is the address of the remote control switch; if the encode address is the address of the remote control switch, the decoding circuit generates corresponding output signals to control a relay circuit and a switch circuit to work, but if the encode address is not the address of the remote control switch, the decoding circuit does not work, the relay circuit does not respond, and the switch circuit does not do any action.

The invention discloses a smart mattress comprising a mattress body. The smart mattress also comprises a trigger module (1), a controller (2) and a power supply (3). The trigger module (1), the controller (2) and the power supply (3) are connected in turn. The trigger module (1) is arranged in the mattress body. The trigger module (1) comprises a trigger device which comprises multiple electrically connected key trigger switches. The controller (2) comprises a micro-control unit MCU (201), a receiving unit (202) and an analysis unit (203). The key trigger switches, the receiving unit (202), the analysis unit (203) and the MCU (201) are connected in turn. Smart control of other equipment can be performed by identification of the controller for the electric signals generated by the trigger device.

The invention discloses a remote control system of an impurity removing machine. The remote control system can be used for controlling operation parameters of the impurity removing machine in cigarette manufacturing, and belongs to the technical field of tobacco processing. The remote control system of the impurity removing machine comprises a total wireless router which is in wire or wireless connection with various industrial personal computers on a cigarette production site, and a network card is inserted in the total wireless router which is further connected with a system industrial personal computer and a wireless communication module controlling operation of the total wireless router. According to the remote control system, the industrial personal computers on the side and the system industrial personal computer are connected together to form a local area network through the total wireless router, the total wireless router has access to the internet through the network card, and therefore all the industrial personal computers in the local area network can have access to the internet through the total wireless router. Meanwhile, the system industrial personal computer in a different place can have access to the industrial personal computers on the site through the internet, and the system industrial personal computer in the different place can remotely debug the industrial personal computers on the site through remote control software installed on the industrial personal computers.

The invention discloses liquid crystal glasses which can selectively reduce the highlight brightness during car meeting at night. The liquid crystal glasses comprise a glasses frame, lenses and a head band; an image collecting unit is arranged at the center of the position right ahead of the head band, and a CCD chip, a liquid crystal drive circuit, a microprocessor, a buffer, a power supply, an image recognizing unit, an image processing unit, an information extracting unit and a gray level data generating unit are arranged in the head band.

A superconduct magnet contactless power supply device is provided. An output terminal of an alternating current power supply is serially connected with a compensation capacitor and then connected withone end of a primary winding. the other output of AC power supply is connected to the other end of primary winding, the primary winding wound by Leeds wire is arranged on the top surface of cryogenicvessel, the two ends of secondary winding wound by superconducting wire are connected with superconducting magnet load through superconducting bridge respectively, and the turns ratio of primary winding to secondary winding is greater than 1; The primary winding and the secondary winding are respectively wound on a disk-shaped coil skeleton, and the secondary winding and the coil skeleton, the superconducting bridge and the superconducting magnet load are all packaged in a cryogenic vessel. The invention solves the problems of large heat leakage of the lead wire, low efficiency of the low-temperature system, easy to induce quenching and the like existing in the contact power supply mode of the external driving power supply, and has the advantages of simple structure, high transmission efficiency, large working air gap and the like.

The invention relates to an intelligent medical warming blanket which comprises a blanket body, heat transfer wires, heating wires, a high temperature wire and a controller. The blanket body is provided with a wire outlet hole; two heat transfer wires are arranged in parallel in the blanket body; the two heat transfer wires are led out of the wire outlet hole to be connected with the controller; a plurality of threading slots are uniformly distributed in the blanket body; one heating wire is inserted in each threading slot; each heating wire is provided with a connection terminal; the connection terminals are respectively connected in parallel to cathodes of the heat transfer wires and one high temperature wire in a staggered manner; a temperature sensor is fixedly arranged on the heating wires; the sensor is connected with the controller by two transmission wires. The controller in the medical warming blanket carries out analysis and distribution on temperature data acquired by the temperature sensor by a singlechip and a control circuit, so that a function of realizing intelligent heating of the medical warming blanket is expanded; and the temperature sensor is in physical contact with the heating wires, so that the temperature can be directly acquired and the data is fed back to a temperature controller.