42results about How to "Safety at Work" patented technology

The invention discloses a large-caliber reflection-type light guide machine and a working method thereof, belonging to the technical field of solar energy application. The large-caliber reflection-type light guide machine consists of an azimuth angle drive device, a height angle drive device, a focus lens group, a sun location system, a focusing device and an optical fiber beam. The focusing device is used for adjusting a receiving end surface of the optical fiber beam to a focal point of the focus lens group, and the focus lens group is driven by the azimuth angle drive device and the height angle drive device, so that the focus lens group can follow the sun, the infrared ray in the incidence light is eliminated by utilizing a filter lens of the focus lens group, and the uniformity of the intensity of the focus spot can be realized by virtue of a light homogenizing cavity of the focus lens group; the sun location system adopts a photosensitive element to provide a sun roughly location signal and utilizes a high temperature sensor to provide a precise position signal of the focus spot. By adopting the large-caliber reflection-type light guide machine, the infrared ray in the sun focus light is eliminated, the uniformity of the intensity of the focal spot can be realized, the service life of the optical fiber beam can be greatly prolonged, and the position detection reliability of the focus spot can be improved by utilizing the high temperature sensor.

The invention provides a radiating device for a controller of an air conditioner, the air conditioner and a control method. The radiating device for the controller of the air conditioner is characterized in that the radiating device comprises the controller (1) and a heat pipe assembly (2); the heat pipe assembly (2) comprises heat pipe condensing ends (21) and a heat pipe evaporation end (22), and the heat pipe evaporation end (22) can conduct heat absorption cooling on the controller (1); and the heat pipe condensing ends (21) are connected to the at least one position, between an outlet ofa condenser (4) and an air suction port of a compressor (3) in a refrigerant circulation system of the air conditioner, of a refrigerant pipeline so as to release heat to the positions of the refrigerant pipeline. According to the radiating device, the heat pipe evaporation end can conduct heat absorption cooling on the controller and transfers heat to the refrigerant pipeline of the refrigerant circulation system through the heat pipe condensing ends, thus the radiating efficiency of the controller of the air conditioner is improved effectively, normal and safe working of the controller is guaranteed, the air conditioner can operate reliably in the high-temperature environment, and the operation environmental temperature range of the air conditioner is enlarged.

The invention discloses a bionic microcapsule containing molybdenum disulfide and a preparing method and application of the microcapsule. The bionic microcapsule comprises a core material and a wall material. The core material is wrapped in the wall material through an emulsion reaction of molybdenum disulfide. Urea resin is adopted as the wall material. Methylbenzene is used as an external waterphase, a urea resin prepolymer and a molybdenum disulfide suspension are slowly added to the external water phase for an emulsion reaction, and pH is controlled to be 3-3.8; after the reaction ends, centrifugal separation, cleaning and drying are conducted to obtain the bionic microcapsule. The invention further discloses a water lubricated bearing bionic material which is prepared by mixing the bionic microcapsule containing molybdenum disulfide with a high polymer substrate material. The obtained water lubricated bearing bionic material has wear resistance to a certain extent; meanwhile, itis avoided that when a composite is prepared, the compatibility difference of different materials is quite large, the composite is prone to cracks, additives are prone to leakage and filling lubricants can hardly have lubricating and wear reduction functions under the extreme conditions.

The invention provides a multiple on-line self-adaption defrosting control method. The method comprises the steps that S1, the upper limit value of the needed time for defrosting of multiple on-line single units is set to be A, and the lower limit value of the needed time for defrosting of the multiple on-line single units is set to be B; S2, the time tmax used by the unit with the longest defrosting time in a multiple on-line and the time tmin used by the unit with the shortest defrosting time are obtained; S3, tmax and A as well as tmin and B are compared, and when tmax>=A, the frequencies of compressors of the corresponding units are increased; and when tmin<=B, the frequencies of the compressors of the corresponding units are decreased. According to the multiple on-line self-adaption defrosting control method, the heating effect of the multiple on-line can be improved, and the defrosting time of the whole multiple on-line is reduced.

The invention provides a heat-pipe heat exchanger, an air-conditioner controller cooling assembly, an air-conditioner outdoor unit and an air conditioner. The heat-pipe heat exchanger comprises a heat pipe (1), a condensation end (2) and an evaporation end (3), wherein the heat pipe (1) can form a circulating loop, and two-phase fluid flows in the heat pipe (1); the condensation end (2) is formed at one end of the heat pipe (1) and can exchange heat with outside air; and the evaporation end (3) comprises heat-exchange component (31) which is provided with a groove structure and can accommodate the heat pipe (1) to allow the heat pipe (1) to penetrate through the groove structure, the heat-exchange component (31) is attached to the heat pipe (1), and heat of an air-conditioner controller (4) can be absorbed through the heat-exchange component (31). According to the heat-pipe heat exchanger, the air-conditioner controller cooling assembly, the air-conditioner outdoor unit and the air conditioner, after passing through the condensation end, refrigerants can absorb heat of the controller through the heat pipe and the heat-exchange component at the evaporation end, so that the purpose of cooling the controller is achieved; and compared with a scheme that a heat pipe is mounted at an evaporation end, the heat-exchange area is effectively enlarged, the cooling efficiency for the air-conditioner controller is improved, and accordingly normal work of the controller is ensured.

The invention relates to villus removing equipment, in particular to villus removing equipment for wool for writing brush making. The technical problem to be solved by the invention is to provide the villus removing equipment for the wool for writing brush making, the villus removing equipment can help staff fix the wool, and thus working is convenient. The provided villus removing equipment for the wool for writing brush making comprises an installation frame, support rods, placing plates, first springs, combs, an elastic rope and the like. The support rods are arranged at the bottom in the installation frame in a bilateral symmetry mode. Placing plates are connected to the top ends of the support rods. The first springs are arranged on the parts, on the front sides of the support rods, at the bottom in the installation frame in a bilateral symmetry mode. The first springs are arranged on the inner sides of the support rods. The combs are connected to the top ends of the first springs. The elastic rope is connected to the lower portion of the inner left wall of the installation frame. According to the villus removing equipment, the wool is fixed to the placing plates first through fixing devices, then villus removing treatment is conducted on the wool through the combs, and combed villi are cut off with scissors when the wool is fixed.

The invention relates to an oil, abrasion and corrosion resistant sheathing material for marine work cables. The oil, abrasion and corrosion resistant sheathing material comprises, by weight, 100 parts of modified polyurethane, 10 to 30 parts of mica nanosheets, 10 to 20 parts of kaolin nanosheets, 5 to 15 parts of a methyl methacrylate-acrylate-styrene copolymer, 1 to 3 parts of dicumyl peroxide, 1 to 2 parts of zinc stearate, 1 to 2 parts of glycerol monostearate, 5 to 8 parts of 2-octyl-4-isothiazolin-3-one, and 2 to 5 parts of 4, 5-dichloro-2-octyl-4-isothiazolin-3-one. The oil, abrasion and corrosion resistant sheathing material has excellent functions of oil resistance, good toughness, abrasion resistance, cold resistance, water resistance, aging resistance, acid and alkali resistance, weather resistance, long service life, UV resistance and energy release.

The invention discloses a battery over-current charging protection circuit. The circuit comprises a V2I voltage-to-current conversion module, an over-current charging protection threshold voltage setting module, a comparator, a negative high voltage bearing module, a positive power input port VDD, a grounding input port VSS, an input port OCP and an input port CS. The V2I voltage-to-current conversion module is electrically connected with the over-current charging pack threshold voltage setting module, the comparator is respectively connected with the negative high voltage bearing module and the over-current charging protection threshold voltage setting module in parallel, and the positive power supply input port VDD is a positive power supply. The grounding input port VSS is a negative power supply; the input port CS is a current induction input port, and the input port CS is connected with the battery. The invention belongs to the technical field of battery charging, and particularlyprovides a battery over-current charging protection circuit which is high in process adaptability, high in precision, high in safety and capable of covering wider application.

An integrated environment control device and an environment control method, belonging to the technical field of power transformation and ventilation equipment, including an integrated body installed in a power distribution room; the body separates a heat dissipation cavity and an indoor cavity; the heat dissipation cavity A heat dissipation passage is provided; the indoor cavity is provided with a fresh air passage and an indoor return air passage. When the temperature outside the power distribution room is lower than the temperature inside the power distribution room, the temperature of the power distribution room is reduced by introducing fresh air with a low external temperature without turning on the evaporator. This scheme of reducing the indoor temperature by replacing the air greatly reduces the working power required by the equipment, and has the advantages of energy saving and high efficiency. At the same time, since the replaced air contains toxic gas and dust, the introduction of fresh air ensures the air safety of the working environment inside the power distribution room.

The invention discloses an electric leakage prevention heating floor and a manufacturing method of the electric leakage prevention heating floor. The electric leakage prevention heating floor comprises a heating plate and a heat preservation plate, wherein the heating plate and the heat preservation plate are packed in a retracting film in a plastic mode, the heating plate comprises a carbon crystal heating plate and a polyester glue film, and the carbon crystal heating plate is packed in the polyester glue film in a plastic mode. The electric leakage prevention heating floor is simple in structure, leaked currents under the wet laying condition of the heating floor are reduced greatly, a small number of leaked currents are led to the underground, the potential safety hazard is avoided, and the electric leakage prevention heating floor can work normally and safely.

The invention discloses a large-caliber reflection-type light guide machine and a working method thereof, belonging to the technical field of solar energy application. The large-caliber reflection-type light guide machine consists of an azimuth angle drive device, a height angle drive device, a focus lens group, a sun location system, a focusing device and an optical fiber beam. The focusing device is used for adjusting a receiving end surface of the optical fiber beam to a focal point of the focus lens group, and the focus lens group is driven by the azimuth angle drive device and the height angle drive device, so that the focus lens group can follow the sun, the infrared ray in the incidence light is eliminated by utilizing a filter lens of the focus lens group, and the uniformity of the intensity of the focus spot can be realized by virtue of a light homogenizing cavity of the focus lens group; the sun location system adopts a photosensitive element to provide a sun roughly location signal and utilizes a high temperature sensor to provide a precise position signal of the focus spot. By adopting the large-caliber reflection-type light guide machine, the infrared ray in the sun focus light is eliminated, the uniformity of the intensity of the focal spot can be realized, the service life of the optical fiber beam can be greatly prolonged, and the position detection reliability of the focus spot can be improved by utilizing the high temperature sensor.

The invention relates to an automatic dust removing type electric appliance box, an outdoor unit and an air conditioning unit. The automatic dust removing type electric appliance box comprises an electric appliance box shell. Windows are formed in the electric appliance box shell and provided with filter screens. The electric appliance box shell is provided with automatic dust removing devices which comprise dust removing components. The dust removing components can reciprocate along the filter screens so as to clean the filter screens. Due to the fact that the automatic dust removing devices are arranged in the positions of the filter screens, dust accumulated on the filter screens can be automatically removed, it is guaranteed that air flows into the windows normally to take away heat in the electric appliance box, and safe and normal work of electronic elements is guaranteed.

The invention relates to villus removing equipment, in particular to villus removing equipment for wool for writing brush making. The technical problem to be solved by the invention is to provide the villus removing equipment for the wool for writing brush making, the villus removing equipment can help staff fix the wool, and thus working is convenient. The provided villus removing equipment for the wool for writing brush making comprises an installation frame, support rods, placing plates, first springs, combs, an elastic rope and the like. The support rods are arranged at the bottom in the installation frame in a bilateral symmetry mode. Placing plates are connected to the top ends of the support rods. The first springs are arranged on the parts, on the front sides of the support rods, at the bottom in the installation frame in a bilateral symmetry mode. The first springs are arranged on the inner sides of the support rods. The combs are connected to the top ends of the first springs. The elastic rope is connected to the lower portion of the inner left wall of the installation frame. According to the villus removing equipment, the wool is fixed to the placing plates first through fixing devices, then villus removing treatment is conducted on the wool through the combs, and combed villi are cut off with scissors when the wool is fixed.

A magnetic coupling relates to a transmission device, and is simple in process, easy in assembly, firm in fixing of permanent magnets, high in use reliability and capable of preventing the permanent magnets from shedding and from sliding along the surface of a rotor. Two end rings are integrally made at two ends of a sleeve respectively, a plurality of rectangular grooves are uniformly arranged on the outer circumferential surface of each end ring, partitions are axially arranged on the outer side of the sleeve, two ends of the partitions are inserted into the corresponding rectangular grooves of the end rings, a mounting groove is formed among the outer side of the sleeve, each two adjacent partitions and the two end rings, a plurality of outer permanent magnets are inlaid in the mounting grooves, the sleeve inlaid with the outer permanent magnets and the two end rings are placed in a shell together, the two end rings are connected with the shell, the outer edge of the radial cross section of an inner rotor yoke is a polygon, an inner permanent magnet is adhered on each outer side of the inner rotor yoke, the inner rotor yoke adhered with the inner permanent magnets is placed in a casing together, and the casing is placed in the sleeve. The magnetic coupling is used for motors.

The invention discloses a gallium nitride power tube driving circuit with an overcurrent protection function, which comprises a first under-voltage detection module, a low-dropout voltage stabilizing circuit, a second under-voltage detection module, a first level conversion module, an overcurrent detection module, an input module, a logic control module, a second level conversion module and a driving module, the over-current detection module is connected with the logic control module, the logic control module is connected with the second level conversion module, the second level conversion module is connected with the driving module, and current flowing through the gallium nitride power tube generates sampling voltage on the current sampling resistor R1. When a GaN power tube is over-current, the voltage of the PGND is higher than a preset threshold voltage of the over-current detection module, the over-current detection module outputs a high level after over-current is maintained for a certain time, the OUT pin is set to be a low level through the logic control module, and the GaN power tube over-current protection circuit is simple in structure and can provide an over-current protection function of the GaN power tube.

The invention discloses a multi-roller rope withdrawing and releasing device comprising a base. A guide roller bracket is fixed to each side of the base correspondingly, a plurality of rope withdrawing and releasing rollers are mounted at the outer end of each guide roller bracket, a middle connecting frame is connected to the inner ends of the guide roller brackets, a rope releasing rotating shaft is connected to the middles of the two guide roller brackets, a plurality of rope pressing devices are arranged at both ends of the rope releasing rotating shaft, a reel bracket is arranged at each end of the middle connecting frame correspondingly, a rope withdrawing rotating shaft is arranged between the two reel brackets, rope withdrawing reels matched with the rope pressing devices on the side are arranged at both ends of the rope withdrawing rotating shaft, a rope hanging roller component is arranged on each rope withdrawing reel, a limiting collision block is arranged on each rope hanging roller component, a limit switch is arranged on each limiting collision block in a matched manner, and a rope guide device is arranged on each guile roller bracket. The multi-roller rope withdrawing and releasing device has the advantages of reliable and stable working, high safety and long service life.