35results about How to "Solve serious fever problems" patented technology

The invention discloses a hydraulic control valve unit for a rotating-vane type steering engine, belonging to the field of hydraulic control valve units. The hydraulic control valve unit comprises an electromagnetic reversing vale, a shuttle valve, a pilot-operated relief valve, a first cartridge valve, a second cartridge valve, a third cartridge valve, a fourth cartridge valve, a fifth cartridge valve, a sixth cartridge valve and a seventh cartridge valve; an oil inlet of the hydraulic control valve unit is communicated with a first oil inlet of the seventh cartridge valve and a first oil inlet of the electromagnetic reversing vale; a second oil inlet of the seventh cartridge valve is communicated with the oil outlet of the hydraulic control valve unit; an oil control port of the seventh cartridge valve is communicated with an oil inlet and an oil outlet of the pilot-operated relief valve; and the oil outlet of the pilot-operated relief valve is communicated with the oil outlet of the hydraulic control valve unit. The heating of a hydraulic system is reduced, thus the size of an oil tank of a hydraulic pump station is reduced, and the space in a ship is saved.

The invention discloses a high-reliability constant voltage mode semiconductor laser driver with continuously adjustable output light power, and relates to a semiconductor laser driver. The driver solves the problems of serious amplifier heating and slow current limiting protection response in the high power of a conventional semiconductor laser. A voltage sampling circuit of the driver is used for acquiring the voltage of a laser diode. A current sampling circuit of the driver is used for acquiring the current of the laser diode. Constant current control circuit is used for controlling the intensity of the current flowing through the laser diode. The sampling signal output end of the voltage sampling circuit is connected with the sampling signal input end of a micro control unit (MCU). The sampling signal output end of the current sampling circuit is connected with the sampling signal input end of the constant current control circuit. The control signal input end of the constant current control circuit is connected with the constant current control signal output end of the MCU. A thermal resistor is used for acquiring the temperature of the laser diode. A thermoelectric cooler (TEC) is used for cooling the laser diode. The driver is suitable for use as a novel high-reliability constant voltage mode light source with the continuously adjustable output light power.

The electrically heated oil roller system consists of one oil roller assembly, one oil roller supporting and rotating assembly, one oil roller heating assembly and one oil roller energy storing assembly. The oil roller supporting and rotating assembly has bearings on cooling bearing seats. The oil roller heating assembly is set inside the cavity between the inside heating jacket and the outer heating jacket inside the oil roller assembly. There are one guide unit of hot oil conveying pipeline communicated to the oil roller energy storing assembly in the left end of the oil roller assembly, and one collector ring in the right end of the oil roller assembly. The electrically heated oil roller system of the present invention has high heat energy utilizing rate, capacity of increasing the service life of bearing, simple structure, high use efficiency and less maintenance.

The invention relates to a power drive system of an electric automobile, in particular to a motor with a mixed-flow fan for circulating inner and outer air paths. The invention solves the problems that the traditional electronic automobile has low reliability, heat radiation at low speed and poor effect when a self-ventilation motor is used as well as large size, difficult heat radiation and low peak powder and overload capacity when a fully-closed motor is used. The power drive system comprises an enclosure, an end cover, an inner cooling air path and a rotor; a mixed flow forced cooling fanis arranged on a non-driving end shaft of the motor; an engine seat shell of the enclosure is provided with U-shaped channel steel closely covering on paired air holes to form an enclosure inner air duct; a fan cover is arranged outside the enclosure, covers U-shaped channel steel and then is welded between two flanges form an enclosure outer air duct together with the engine seat shell; and air holes are formed on the two flanges of the enclosure as well as at the position of the motor end cover, which corresponds to the enclosure outer air duct. The device can better protect the inside of the motor from being intruded by dust and rain water and can ensure heat dissipation, smaller volume and weight requirement.

The invention discloses a high-precision thick foil scissor cutter shaft system. A cutter shaft is in a forging integrated type, a supporting bearing at the rear end of the front part of the cutter shaft system is a cylindrical roller bearing, wherein an inner ring of the cylindrical roller bearing is a conical face, the inner ring and an outer ring of the cylindrical roller bearing are separable, and the inner ring is completely fixed on the cutter shaft through a nut. Two spacer bushes are mounted between a first angular contact ball bearing and a second angular contact ball bearing at the front end of the front part of the cutter shaft system, the inner ring is locked on the cutter shaft through the nut. The supporting bearing at the rear end of the cutter shaft system is the cylindrical roller bearing with the inner ring being the conical face and the inner ring and the outer ring being separable, the inner ring of the bearing can be fixed on an inner conical sleeve through the nut, a separation ring is arranged on the inner ring of the bearing, and an outer conical sleeve is fixed on the cylindrical face of the rear end of the cutter through a screw. The high-precision thick foil scissor cutter shaft system can obviously improve the cutting precision, the heating problem of the bearings in the high speed operation process is solved, mounting and adjusting are convenient, and the production efficiency of shearing equipment is improved.

The present invention proposes a pre-modulated broadband power output device for an intermediate frequency therapeutic instrument and a method thereof. The output device includes a treatment input unit, a low-frequency signal unit, a pre-modulated power output unit, an intermediate frequency signal unit, and a broadband inverter unit; The low-frequency signal unit is connected to one end of the pre-modulation power output unit, the other end of the pre-modulation power output unit and the intermediate frequency signal unit are respectively connected to one end of the broadband inverter unit, and the other end of the broadband inverter unit is connected to an external treatment electrode sheet. The steps of the method are as follows: S1, inputting treatment requirements; S2, generating a low-frequency signal, a DC power signal, and an intermediate frequency signal; S3, using the low-frequency signal to pre-modulate the DC power signal; S4, modulating the pre-modulated DC power signal through the intermediate-frequency signal, Obtain the modulated intermediate frequency power signal. The output device and method of the invention can obtain output signals with the same effect and better high-frequency characteristics, and the structure is simple and the work efficiency is high.

The invention discloses a drive device for an ultrasonic probe and a drive method thereof. The drive device comprises a power supply regulating circuit, a control unit, an output circuit and a variable voltage regulating circuit, wherein the power supply regulating circuit is used for providing required voltages to each part of the drive device; the control unit is used for outputting driving voltage command signals and power supply voltage control signals according to settings of users; the output circuit comprises a power amplifier for outputting driving signals to the ultrasonic probe after amplifying the driving voltage command signal output by the control device; and the variable voltage regulating circuit is used for outputting variable power supply voltage to the power amplifier responding to the control unit. By adopting the invention, the power consumed on the power amplifier is reduced, the problem of serious heat generation of the drive device is solved, and the efficiency of the drive unit is improved.

The invention discloses a display device, a backlight module and a field emission light source device thereof. The field emission light source device comprises an anode formed on a substrate, the anode including an anode electrode layer provided on the substrate, and a luminescent material layer disposed on the anode electrode layer wherein the anode electrode layer comprises: a thermally conductive layer on the substrate and a transparent conductive film on the thermally conductive layer. The luminescent material layer is arranged on the transparent conductive film. The thermally conductive layer is made of metal materials and has a grid structure. The invention also provides a backlight module and a display device with the field emission light source device. According to the invention, the problem with severe heating of a field emission light source device can be resolved.

The invention discloses a wireless charging single-coil transmitting and receiving positioning charging system, which relates to the technical field of wireless charging; an automatic switching module switches the working state of the main coil to the transmitting or receiving state, and a magnetic switch for switching coordination is arranged around the main coil , Gravity switch and photoelectric switch; the power input terminal inputs the power to the wireless charging transmission drive module, the wireless charging transmission drive module is electrically connected to the automatic switching module, the automatic switching module is connected to the terminal of the main coil, magnetic switch, gravity switch, photoelectric switch All are connected to the input end of the automatic switching module; the present invention effectively solves the serious problem of heat generation in the wireless charging transmission state and wireless reception state in poor coupling; the wireless charging efficiency is higher, power waste is avoided, the temperature is reduced, and the safety performance is improved. Charging is more convenient and fast; the product is lighter and thinner, easier to carry, effectively reducing costs, and the structure is more stable and reliable, avoiding unnecessary waste of resources.

The invention provides a terminal, a charger and a charging method. The terminal and the charger are connected. The terminal comprises a first transmitting unit, a second transmitting unit and a charging unit. The first transmitting unit sends a voltage reduction request to the charger according to a voltage-reduction charging protocol when the charger charges the terminal through a first charging line in a universal serial bus. The second transmitting unit sends a voltage reduction control command to the charger to enable the charger to reduce the charging voltage to a target charging voltage required by the terminal when the terminal receives a voltage reduction request response from the charger. The charging unit receives the target charging voltage of the terminal through a second charging line in the universal serial bus to enable the charger to provide the target charging voltage for the terminal and charge the terminal at the target charging voltage. By adopting the technical scheme of the invention, the problem that a terminal produces a lot of heat in the charging process can be solved, and the user experience can be enhanced.

The invention relates to the field of control technology, in particular to a flashlight control circuit and a mobile terminal. The flash lamp control circuit includes a flash lamp and a current amplifying structure; the current amplifying structure includes a first triode and a second triode, the current output terminal of the first triode is connected to the second triode The current input terminals are connected; the current amplified by the current amplification structure flows into the flash lamp. The invention solves the serious problem of triode heat generation and reduces the heat generation in the flashlight control circuit.