72results about How to "Solve the heat" patented technology

The invention provides a laser radar. The laser radar comprises a rotor, a laser emitting system and a receiving system; the rotor is provided with an emitting cabin and a receiving cabin which are separated from each other; the laser emitting system is arranged in the emitting cabin; the receiving system is arranged in the receiving cabin; the laser emitting system comprises an emitting circuit group, a first number of outgoing optical fibers, and an optical fiber fixing device; the emitting circuit group includes a second number of laser light sources; laser beams emitted by the laser lightsources are coupled to the outgoing optical fibers; the optical fiber fixing device comprises an optical fiber fixing plate; the optical fiber fixing plate has a first side surface and a second side surface; optical fiber fixing grooves are formed in the first side surface and/or the second side surface; and the optical fiber fixing grooves are used for fixing the outgoing optical fibers. According to the laser radar of the invention, an arbitrary number of optical fibers can be fixed by means of the combination of the optical fiber fixing device and the optical fiber coupling technology, so that the high wiring harness of the laser radar can be realized; the arrangement of the laser is more flexible; and the heat dissipation parts of a heat sink component and a top cover can be used in amatched manner, so that the heat dissipation problem of the laser radar can be solved.

The present invention provides a highly-protective, heat dissipating LED light source module that may be waterproof or non-waterproof. In an embodiment, the present invention provides an LED light source module comprising: a waterproof housing comprising a metal substrate and a plastic cover integrally disposed on one or more surfaces of the metal substrate; and at least one light emitting diode, electronic component, and power line disposed on and operably connected with the metal substrate and encapsulated thereon by the plastic cover. In other embodiments are provided LED light source modules comprising: a circuit board with at least two through holes disposed at selected positions; at least one light emitting diode, electronic component, and power line disposed on the circuit board and operably connected therewith; and a plastic cover comprising at least two pins disposed and shaped for interconnection with corresponding through holes of the circuit board. The simple LED light source models disclosed may be efficiently and inexpensively produced and are capable of withstanding the harsh environments in which they are sometimes used.

The invention provides a laser emitting device for a laser radar. The laser emitting device comprises a laser source used for emitting a laser beam and including an N pole and a P pole; and a heat sink component used for dissipating the heat of the laser source. The laser source is disposed on the heat sink component, and the P pole of the laser source is soldered to the heat sink component. The invention also provides a laser radar comprising a rotor, wherein the laser emitting device is disposed in an emitting bin of the rotor. According to the laser emitting device of the invention, the laser source is inverted on the heat sink component, and the heat sink component dissipates a large amount of heat generated by the laser source during operation, thereby effectively solving the problemthe laser source generates a large amount of heat and the heat is difficult to be exported, so that the laser source can be prevented from being damaged by excessively high temperature.

Disclosed is a method for producing a non-heat-treatable high strength aluminum sheet from aluminum scraps using a continuous caster. The method includes providing a molten aluminum non-heat-treatable alloy including Si about 0.7% max., Fe about 0.8% max., Cu about 0.3% max., Mn about 0.5-1.2%, Mg about 1.3-2.8%, Zn about 0.20% max., Cr about 0.2% max., Zr about 0.30% max., Sr about 0.30 max., the remainder aluminum, incidental elements and impurities; and continuously casting the molten aluminum alloy into a slab and rolling the slab into a sheet product with high strength and reasonable formability. Typically, the sheet product is used for the products, such as truck trailer siding panel or electrical conduits for the building industry.

The invention relates to the field of switching power supplies, in particular to an absorption circuit for absorbing spike voltage of a two-transistor forward converter. A resistor is replaced by an iron-silicon-aluminum magnet ring to serve as an absorption loop in a switching power supply, the technical problems that during absorption of the spike voltage by means of resistance-capacitance in the prior art, heat generation is high, energy loss is high and energy efficiency is low are solved, voltage spikes generated by reverse restoration of diodes can be effectively suppressed, reliable running of the circuit is guaranteed, the defect that the conventional RCD buffering absorption network is high in loss is avoided, RC absorption is fully replaced, heat generation is low, safety is higher, energy efficiency is high, and the absorption circuit is widely applicable to power supply products.

An energy-saving environment-friendly pig house relates to the technical field of pig breeding and comprises a rectangular enclosed wall and a roof at the top of the wall. The lateral side of the wall is provided with a window. A door is arranged at the front of the wall. The energy-saving environment-friendly pig house is characterized in that a through hole is reserved at the front of the wall and on one side of the door, a wet curtain is installed in the through hole and connected with a groundwater pipe, a suction fan is installed at the rear of the wall, and a heating house is disposed on one side of the wall and connected with the pig house through a heating passage inside the heating house. When outdoor temperature is high, the temperature of the pig house can be kept within a proper range by means of the thermal-insulation pig house and the exhaust ventilation wet curtain, and the problem that pigs are unable to stand high heat is solved effectively. When the outdoor temperature is low in winter, an underground flame path is used for heating, the house is warm inside, and a comfortable environment at the proper temperature is provided for pigs. Using the thermal-insulation exhaust ventilation pig house can solve a plurality of problems in raising pigs.

The invention relates to a bio-hydrogen production method by photosynthetic bacteria, which comprises the following step: (1) under an anaerobic condition, an organic acid is used as a fermentation substrate, the photosynthetic bacteria are fermented and cultured under one or a plurality of light sources with the wavelengths selected from the ranges of 400-500nm, 510-550nm, 575-600nm, 600-640nm and 780-880nm or the white light corresponding color temperature range of 2650-10000K, and the light intensity is 3000-7000Lux, so mixed gas is generated; and (2) hydrogen is separated from the generated mixed gas. With a proper light source, the invention can provide adequate light energy for hydrogen production by fermenting the photosynthetic bacteria, greatly increases the efficiency of energy conversion, and avoids the energy consumption steps of temperature reduction and the like on the whole fermentation system.

The invention discloses a nickel zinc ferrite material used in a high-frequency electrodeless lamp power coupler and a preparation method, wherein the main phase of the nickel zinc ferrite material is a spinel structure which comprises Fe2O3, ZnO, CuO, NiO and CoO, is characterized in that: the content of each composition is as follows as calculated according to oxide: Fe2O3 is 45 to 49 mol percent; ZnO is 23 to 31 mol percent; CuO is 2.5 to 4.8 mol percent; NiO is 14 to 25 mol percent; and CoO is 0.5 to 1.2 mol percent. The nickel zinc ferrite material, which has higher resistivity, has extremely low electromagnetic loss under high-temperature heavy current and particularly under 2.5 MHz to 3 MHz high frequency; meanwhile, the quality factor Q of the nickel zinc ferrite material is more than 200 all the time; therefore, the nickel zinc ferrite material effectively solves the problems that a high-frequency electrodeless lamp power coupler has low efficiency and high heat productivity. Moreover, the nickel zinc ferrite material also has excellent temperature stability, and the initial permeability of the material is always kept between 300 and 400 under a broad temperature range ranging from minus 20 DEG C to plus 100 DEG C; meanwhile, the specific temperature coefficient of the material is less than 9.0x10<-6>, which is propitious to maintain the operating stability of a power coupler.

Disclosed herein are a DC-DC boost converter circuit, which is capable of preventing power loss and stabilizing switching elements by implementing soft switching and improving efficiency by adding a charge pumping function, and a method for driving the same. The DC-DC boost converter circuit, in which an inductor and an output diode are connected in series and an output capacitor and a load are connected to an output port of the output diode in parallel, includes an output stabilization circuit in which first and second switching elements, a transformer, a plurality of boost capacitors, and a plurality of diodes are connected in series/parallel between the inductor and the output diode.

The invention discloses a power supply circuit for a constant current source. The power supply circuit comprises a main control chip, a direct voltage outputting module and a constant current outputting module, wherein the main control chip is connected with the direct voltage outputting module and the constant current outputting module respectively to be used for outputting a control instruction according to power supply voltage needed by a load circuit so as to regulate the output voltage of the direct voltage outputting module; the direct voltage outputting module is used for supplying a variable direct voltage for the load circuit; the constant current outputting module is used for outputting a constant electric current to the load circuit. The power supply circuit disclosed by the invention can reduce the calorific value and enlarge the scope of the output current.

The invention provides a transformer, which comprises a magnetic core assembly, a primary winding and a secondary winding, wherein the primary winding and the secondary winding are wound on the magnetic core assembly and are matched with the magnetic core assembly to be used, the primary winding comprises a first winding and a second winding, the first winding is coupled with the secondary winding in the axial direction, the second winding is coupled with the secondary winding in the radial direction, and/or the secondary winding comprises a third winding and a fourth winding, wherein the third winding is coupled with the primary winding in the axial direction, the fourth winding is coupled with the primary winding in the radial direction. Through the technical scheme of the transformer, the primary winding and the secondary winding in the transformer can be coupled in both the axial direction and the radial direction, in addition, the production cost of the transformer is reduced, and the heat radiation effect of the transformer is optimized.

The embodiment of the invention discloses an LED (Light-Emitting Diode) constant-current source which is used for solving the problem that heat of an LED lamp T2 is difficult to radiate. The LED constant-current source provided by the embodiment of the invention comprises a direct-current input end T1, the LED lamp T2, an MOS (Metal Oxide Semiconductor) tube T3, a DC (Direct-Current)/DC circuit T4, a constant-current control circuit T5, a controller T7 and a voltage fine turning control module T8, wherein the direct-current input end T1 is connected with the LED lamp T2; the LED lamp T2, the MOS tube T3 and the DC/DC circuit T4 are sequentially connected; the MOS tube T3 is connected with one end of the DC/DC circuit T4; the other end of the DC/DC circuit T4 is grounded; the controller T7 is connected with the MOS tube T3 through the constant-current control circuit T5; and the voltage fine turning control module T8 is connected with the DC/DC circuit T4. With the adoption of the LED constant-current source provided by the invention, the problem that the heat of the LED lamp T2 is difficult to radiate can be effectively solved.

The invention discloses an AC and DC digital input circuit. The circuit comprises an external control power supply circuit, a rectifying and filtering isolation input circuit, a detection isolation control circuit, a transient absorption circuit and a singlechip interface circuit. The circuit of the invention can realize AC and DC digital input signal acquisition without changing a hardware circuit structure; and the circuit is simple, reliable and low in cost. The circuit has higher practicability in the field of electrical engineering, particularly, in a power equipment protection device and an industrial automatic control situation.

The invention discloses a drawing leather roller sleeve bearing which comprises a bearing shell and a bearing core shaft. Two inner R-shaped trenches are formed in an inner hole of the bearing shell. An external cone circle part is arranged at one end of the bearing core shaft, and the taper and size of the external cone circle part are matched with those of an inner cone hole of a leather roller core shaft. Two external R-shaped trenches are formed in an external non-taper circle part of the bearing core shaft, and the position of the external trenches is matched with the inner R-shaped trenches of the bearing shell. Steel balls are arranged in the inner R-shaped trenches of the bearing shell and the corresponding external R-shaped trenches of the bearing core shaft in a sleeving mode. The steel balls are evenly spaced through holders. A sealing ring and a positioning loop are pressed into inner holes in the two ends of the bearing shell correspondingly. The sealing ring and the external cone circle part of the bearing core shaft are placed at the same end. The drawing leather roller sleeve bearing has the advantages of operation stability, low temperature rise, no oil leakage, long oil replenishing period and the like.

The invention relates to THF rectification equipment for PBT production, which includes a first rectification column, a second rectification column, a third rectification column and a fourth rectification column. The first rectification column is connected to a THF wastewater device. A top outlet of the first rectification column is connected to the middle upper part of the second rectification column. A gas phase outlet of the second rectification column is connected to an auxiliary reboiler shell inlet of the third rectification column. An auxiliary reboiler shell outlet of the third rectification column is connected to a recovery liquid tank and the middle upper part of the fourth rectification column in order. A side-draw outlet of the fourth rectification column is connected to a reflux tank of the first column through a side-draw pump, and a bottom product of the fourth rectification column is combined with the product of the first rectification column and then conveyed to a sewage treatment system. The bottom of the second rectification column is connected to the third rectification column through a pipeline, a heavy component is discharged from the bottom of the third rectification column and a THF product is produced from the column top. The equipment can effectively improve the THF yield, reduce energy consumption and effectively save the operation cost.

The invention discloses an itching-relieving liniment. The itching-relieving liniment is prepared from common cnidium fruits, radix sophorae flavescentis, radix stemonae, amur corktree bark and rhizoma atractylodis. All the Chinese herbs are taken at the same weight part and soaked with ethyl alcohol to prepare the itching-relieving liniment. The itching-relieving liniment is free of hormonal side effects, does not contain preservatives and has an ideal itching relieving effect.

The invention relates to a preparation method of modified glass fiber cloth. The method comprises the following steps of placing glass fiber base cloth in a suspension liquid for dipping and pulling, and then carrying out heat treatment, wherein the suspension liquid is prepared from the following components in parts by mass of 0.3 to 1 part of graphite, 0.1 to 0.2 part of carbon black, 0.1 to 0.5 part of inorganic micro powder, 0.5 to 2 parts of organic resin, 1 to 3 parts of alcohol and 2 to 4 parts of water; the inorganic micro powder is selected from at least one of aluminum oxide micro powder and magnesium oxide micro powder; and the organic resin is phenolic resin. The modified glass fiber cloth prepared by the preparation method has better heat-conducting property.

The medicine composition for treating laryngopharyngitis is prepared with rehmannia root 5-100 weight portions, date coating 3-100 weight portions, and tortoise plastron 5-200 weight portions. The preparation process includes the steps of decoction, filtering, concentrating the filtrate to obtain paste of density 1.00-1.15, dissolving the paste in alcohol, filtering, concentrating the filtrate to obtain dense paste of density 1.20-1.50 while recovering alcohol, and drying to obtain the medicine composition. The medicine composition is used in treating laryngopharyngitis, and has high safety, low cost, high effective component content and high stability.