285results about How to "Avoid overheating damage" patented technology

A silicon carbide ceramic foam solar energy air heat absorber uses silicon carbide ceramic foam materials as solar energy absorber. The silicon carbide ceramic foam absorber is wrapped with an insulating layer (2). A radiant heat flux (3) projects onto the surface of the silicon carbide ceramic foam absorber (1) or into an artificial blackbody cavity (9) and is received by the silicon carbide ceramic foam absorber (1). Cold air (4) flows in from the side of the silicon carbide ceramic foam absorber (1) positive to the radiant heat flux (3). Hot air (5) is obtained through heat exchange of thecold air and the radiant heat flux. Or the cold air (4) flows in from the side of the silicon carbide ceramic foam absorber (1) positive to the radiant heat flux (3) or back to the radiant heat flux (3). The hot air (5) of 700 to 1300 DEG C is obtained through the heat exchange of the cold air and the radiant heat flux through a quartz window (10). The silicon carbide ceramic foam absorber (1) buries an air diversion channel (8) beforehand. The invention can effectively receive radiant heat and emit heat to the air and take advantage of self-sensible heat to store heat at the same time.

The invention is a nano-particulate demulsifying agent used in demulsification of trinary oil recovery produced fluid. The application of new technique of trinary oil recovery enhances the crude oil recovery, where the polymer injection oil-recovery technique increases the oil, obviously, but also causes the difficulty in demulsifying the produced fluid at the same time. Its character lies in that: the nano-particulate demulsifying agent is composed of particle nucleating material which processes the surface of nano silicon oxide material by silane coupler and fluorine compound and reacting solvent containing arenes as dimethylbenzene, as well as polyether demulsifying agent as multicomponent polyether, amine polyether and resin polyether. It effectively solve the problem about the demulsification of trinary oil recovery polymer injection produced fluid, field used quantity little, demulsifying speed rapid, dehydrating efficiency high and oil-water interface regular.

The invention relates to an assisted control system and method based on MCU hill holding and hill starting. The method comprises the following steps of judging whether a vehicle enters a hill-holding mode or not in real time according to a control signal of the vehicle and a motor speed, wherein VCU vehicle operation mode judgment is not needed; after the vehicle enters the hill-holding mode, under the control of the MCU, switching a torque mode to a speed mode; under the speed mode, controlling the speed given to zero speed by the MCU to realize hill holding; in order to achieve zero speed constancy under the speed mode, adjusting output torque by a drive motor according to different gravity components corresponding to different slope angles; and identifying and controlling the entire hill-holding process completely and independently by the MCU, and high precision of torque control and strong real-time capability are achieved.

The invention provides a permanent-magnetic brushless motor, the Hall position sensor and the motor stator of which are separately positioned. The brushless motor of the invention pertains to technical filed of motors, is characterized by being provided with a phase-change sensing device of the Hall position sensor separately positioned with the motor rotor and has the structure that: a permanent-magnetic phase-change rotor and a phase-change Hall position sensor support which is matched with the rotor are arranged; the permanent-magnetic phase-change rotor and the motor permanent-magnetic rotor are connected with each other and synchronized; the Hall position sensor support and the motor stator are fixedly connected; the Hall position senor is fixedly arranged at the phase position the Hall position sensor support, which is opposite to the permanent-magnetic phase-change rotor. The invention is characterized by effectively preventing the damage to the Hall position sensor caused by overheating, thereby greatly reducing the repair rate of the brushless motor, improving working efficiency, causing the repairing to be more convenient, flexible and fast with low cost and having long service life. In addition, the brushless motor of the invention can be applied to various motors.

The invention relates to a circuit board with a conductive structure, comprising a bearing board, a first conductive structure, a first dielectric layer, a second dielectric layer and a second conductive structure. The bearing board is provided with a first surface, a second surface and at least one through hole, and the first surface and the second surface are opposite; the first conductive structure comprises a conductive hole in the through hole, a first conductive surface arranged on the first surface of the bearing board and a second conductive surface arranged on the second surface; the first dielectric layer is arranged on the first surface of the bearing board and provided with a first opening so as to expose the first conductive surface; the second dielectric layer is arranged on the second surface of the bearing board and provided with at least one second opening so as to expose part of the second conductive surface; and the second conductive structure is arranged in the second opening and connected with the second conductive surface. The circuit board with the conductive structures also comprises a semiconductor element and a radiation element, wherein the passive surface of the semiconductor element is connected with the first conductive surface, and the radiation element is formed on the exposed surface of the second conductive structure so that heat can be radiated from the first conductive structure, the second conductive structure and the semiconductor element, and the semiconductor element and the circuit board can be protected against damage.

The invention provides a water-cooling water chilling unit and a control method thereof. Cooling water is utilized for cooling and heat dissipation for a frequency converter, temperature of a frequency converter radiator is relatively constant, parts are prevented from being damaged caused by overheating, radiator condensation is prevented from producing disadvantageous influence on the frequency converter, and work stability of the frequency converter is improved. A cooling water pump drives the cooling water to flow in a circulation mode in a circulation pipeline and drives the cooling water to flow in a cooling branch pipeline of the frequency converter, and the frequency converter is cooled by the cooling water flowing through the frequency converter. The frequency converter is provided with a temperature sensing part, a self-reliance type temperature regulating valve is arranged in the cooling branch pipeline of the frequency converter, the self-reliance type temperature regulating valve regulates aperture of the valve by comparing difference values of temperature signals and set temperature of the frequency converter, quantity of the cooling water flowing through the cooling branch pipeline of the frequency converter is further controlled, and temperature of the frequency converter achieves a constant value.

The invention discloses an all-terrain vehicle storage battery heat dissipation mounting box. The all-terrain vehicle storage battery heat dissipation mounting box comprises an outer frame; a heat dissipation plate is fixedly connected between the two sides of the inner wall of the outer frame; the two sides of the top of the heat dissipation plate are fixedly connected with inner frames respectively; the bottom of the inner wall of each inner frame is glidingly connected with a damping apparatus; the top of each damping apparatus is fixedly connected with a buffer plate; the top of each buffer plate is fixedly connected with a storage battery; and fixed apparatuses are fixedly connected between the two sides of the inner walls of the inner frames. The invention relates to the technical field of the all-terrain vehicle. By virtue of the all-terrain vehicle storage battery heat dissipation mounting box, the storage battery can be clamped and fixed conveniently; and in the use process ofthe all-terrain vehicle, collision and damage of the storage battery can be prevented, normal driving of the all-terrain vehicle is ensured, damage of the storage battery due to overheat can be prevented, the normal temperature of the storage battery is maintained, the service life of the storage battery is prolonged, disorder arrangement of electric wires is avoided, the wires can be arranged more tidily, mutual tangling of the electric wires can be avoided, and wiring stability is improved.

The invention provides a heat radiation failure protection device of an LED illumination module. The device mainly comprises an LED lamp cluster, a power supply unit and a heat radiation fan; the heat radiation fan is connected on the main power supply circuit in series or in parallel, a controlling circuit is additionally arranged between the main power supply circuit and the heat radiation fan, and a current controlling component (like a field effect transistor, a three electrode tube, a relay, or a thyristor, etc.) is arranged between the controlling circuit and the main power supply circuit; when the heat radiation fan of the LED illumination module runs abnormally, the power supply current flow quantity of the main power supply circuit can be weakened or in an interruption state through the controlling circuit and the reaction action of the current controlling component, to lead the LED lamp cluster to be transformed and in faint light or power off state, and thereby achieving the protection effect of effectively preventing the over heated damage and the explosion of the LED lamp cluster, in order to further improve the operational safety and the quality of the LED illumination module, and to lead the LED illumination module to have the practical progression.

The invention discloses a temperature control method and device for an air conditioner, the air conditioner, a storage medium and a processor. The method comprises the steps of obtaining the current temperature of a heating device in the air conditioner, wherein the heating device comprises a power module, a heat sink and inductors for a PCB and a PFC, and the current temperature of the heating device is the minimum one in the temperatures of the heating device; determining whether the value of the current temperature of the heating device is equal to or higher than a first preset temperaturevalue or not; if the value of the current temperature of the heating device is equal to or higher than the value of first preset temperature, controlling a cooling fan of the air conditioner to run ata set high blow gear; and if the value of the current temperature of the heating device is lower than the value of the first preset temperature, controlling the cooling fan of the air conditioner torun at a set low blow gear. According to the control method, the power devices run within a safe work temperature range, and the power devices can be prevented from being damaged by overheating.

The invention discloses a device for protecting a solar Stirling engine heat absorber. The Stirling engine comprises a heat absorber, wherein the heat absorber is provided with a daylight opening (2). The protecting device comprises at least one light-tight cover plate (3), wherein the cover plate (3) is in rotary connection with a front body (16) of the heat absorber, so that the cover plate (3) can be rotated to a first position for shading the daylight opening (2) or rotated to a second position for uncovering the daylight opening (2). By using such structure, the cover plate can be rotated to the first position in emergency, so that the purpose of shading the daylight opening is achieved, and light energy gathered by a light-gathering device on a heat absorption pipe can be cut off, thereby achieving an effect of protecting the heat absorption pipe and greatly prolonging the service life of the heat absorber. The invention also discloses a method for protecting the solar Stirling engine heat absorber.

The invention discloses a centrosymmetric radial bipolar plate flow field structure for solid polymer electrolyte (SPE) electrolysis. The centrosymmetric radial bipolar plate flow field structure for SPE electrolysis comprises a bipolar plate body, an internal radial flow channel, an external radial flow channel, a pressure equalizing transition belt, an outlet notch and a communication region, wherein the bipolar plate body is provided with a water inlet and an outlet; the internal radial flow channel is composed of a plurality of internal ring ridges which extend in the radial direction of the bipolar plate body and are centrally symmetrical, and the external radial flow channel is composed of a plurality of external ring ridges; the pressure equalizing transition belt is arranged between the internal radial flow channel and the external radial flow channel; the outlet notch communicates with the tail end of the external radial flow channel; the communication region communicates with the outlet notch and the outlet; and the water inlet is located in the center of the bipolar plate body and communicates with the internal radial flow channel. According to the centrosymmetric radial bipolar plate flow field structure for SPE electrolysis, the centrally-symmetrical radial ridges form the flow channels, so that the distances of the flow channels are shortened; and the pressure in all flow channel units is evenly distributed through the pressure equalizing transition belt, and the distribution uniformity of the pressure and water in a flow field is kept under the condition that the number of water inlets is not increased, so that the hydrogen yield of an SPE electrolytic tank manufactured based on the centrosymmetric radial bipolar plate flow field structure can be increased by increasing the catalyst loading areas or/and the overlapping number of membrane electrode assemblies (MEAs), the electrolytic efficiency is improved, and the service life is prolonged.

The invention discloses a pressed adsorption router, belonging to routers in the technical field of electronic products. The pressed adsorption router can be adsorbed at the wall corner, so that the router is less likely to fall down by touch and is more stable in adsorption. The router comprises a router body with a fan-shaped cross section. The router body comprises an upper fan surface, a lower fan surface, two rectangular side surfaces and a cylindrical surface. Two rectangular side surfaces are vertical to each other. A plurality of RJ45 interfaces are uniformly distributed on the cylindrical surface. An adsorption device is installed on the rectangular side surface. Main suckers are correspondingly arranged at four corners of the adsorption device. Mouths of the main suckers are outward. An annular sucker with a hemispheroid cross section is arranged outside the main sucker. The main sucker and the annular sucker are integrated. The pressed adsorption router is applicable to the router.

The invention discloses an ultrasonic waveguide provided with a cooling system. The ultrasonic waveguide comprises an ultrasonic waveguide casing and an ultrasonic transducer, wherein openings are formed in the top and the bottom of the ultrasonic waveguide casing; the ultrasonic transducer is connected with the ultrasonic waveguide casing through the opening in the top of the ultrasonic waveguide casing; a heat exchanger is arranged on the outer wall of the ultrasonic waveguide casing; and a cooling medium inlet and a cooling medium outlet are formed in the heat exchanger. According to the ultrasonic waveguide provided with the cooling system, a waveguide cap is added at the top end of a small opening of a conventional ultrasonic waveguide structure, so that an accurate spacial position relation between an ultrasonic focal spot and a conductive film interface at a waveguide cap top part is guaranteed, and three-dimensional precise positioning is not required for calibration. Therefore, the use efficiency is greatly improved and the use cost is reduced; and the heat produced in a working process of the ultrasonic transducer is taken away through a flowing cooling medium, and the temperature can be regulated, so that overheat damage caused by long-time working of a device is avoided.

The invention discloses a high voltage starting circuit and a control method thereof. Electricity can be directly taken from an input voltage, and a controller is started, and self-turn-off can be realized under the condition of not receiving any external signal, so that the starting power consumption can be saved; besides, during power failure protection, the high voltage starting circuit can be self-opened, so that the high voltage starting circuit can be guaranteed to be self-recovered after power failures are removed. Meanwhile, the high voltage starting circuit is simple in structure, small in size and miniature encapsulation can be carried out.

The invention discloses a valve control method and device for an engine. The valve control method comprises the following steps: collecting the actual opening of a target valve; inquiring a duty ratiolimiting value corresponding to the actual opening of the valve in a preset duty ratio limiting value table; and taking the duty ratio limiting value as the duty ratio limiting value of the target valve. According to the invention, by giving the valve different duty ratio limiting values at different openings, the condition that the valve is overheated and damaged is avoided while the demand forduty ratio of the engine is met, so that the reliability of the valve is improved, and the unnecessary resource waste is reduced.

The invention discloses a solar battery module protection circuit, a solar junction box and a power generation system, relating to the overheating protection field of a solar battery module generating system, particularly relating to the overheating protection of a solar battery module consisting of multiple series-wound solar cells, and more particularly relating to the overheating protection of a solar cell module protection circuit connected in parallel with a bypass diode. The solar battery module protection circuit is accomplished by the following technical project: the solar battery module protection circuit comprises a bypass diode and a normally-on overheating protection switch device, wherein the solar battery module protection circuit is reversely connected in parallel with a solar cell module consisting of series-wound solar cells, and the normally-on overheating protection switch device is connected in parallel and thermally coupled with the bypass diode can capable of automatically and electrically cut out the bypass circuit at a set temperature; and the normally-on overheating protection switch device can automatically return to the off normal state at the other set temperature. By using the protection circuit, the working temperature of the bypass diode can be automatically within the safe working temperature range.

The invention discloses a protection device of a solar Stirling engine heat absorber. A Stirling engine comprises the heater absorber, the heater absorber is provided with a daylight opening, the protective device comprises a lightproof light screen, and the light screen is connected with an outer shell of the heat absorber in a rotating mode, so that the light screen rotates to a first position for shielding the daylight opening, or to a fourth position for opening the daylight opening completely, or to a second position and a third position which partially open the daylight opening. The protection device of the solar Stirling engine heat absorber can rapidly and effectively cut off the light path projected on the heat absorber to avoid overheating and overburning of the heat absorber.

The invention discloses a smoke waste heat recovery and re-circulating temperature adjusting method and system of a natural gas oxygen-rich combustion furnace. The method comprises the following steps: enabling one part of smoke discharged from a hearth of the natural gas oxygen-rich combustion furnace to enter a re-circulating flue, treating the smoke by utilizing a circulating fan and an electric dust collector arranged in the re-circulating flue, then returning the smoke to the hearth, cooling the hearth, repeating the process, and completing the temperature adjustment in the hearth; and enabling the remaining smoke discharged from the hearth of the natural gas oxygen-rich combustion furnace to enter a metal radiation heat exchanger to exchange heat with a combustion-supporting oxygen-rich gas, recycling the waste heat of the smoke, and discharging the heat-exchanged smoke from a chimney. By means of re-circulating way of the smoke and heat exchanging by the metal radiation heat exchanger, the temperature in the hearth of an industrial kiln and a boiler when in oxygen-rich combustion can be effectively controlled, the excessive oxidation or burning of furnace burden and overheating and damage of a furnace body can be avoided, and the recycling of the waste heat of the discharged smoke can be realized.