218results about How to "Speed up export" patented technology

The invention discloses a phase change heat-conducting thermal silicone grease composition for central processing unit (CPU) radiating. The phase change heat-conducting thermal silicone grease composition is prepared from the following raw materials in parts by weight: 5-10 parts of base oil, 5-10 parts of paraffin, 1-3 parts of vinyl trimethoxy silane, 80-90 parts of heat-conducting filler. The method for preparing the phase change heat-conducting thermal silicone grease composition for CPU radiating comprises the following steps: 1) performing particle size distribution on the heat-conducting filler; 2) mixing the compounded heat-conducting filler and vinyl trimethoxy silane in ethanol, regulating the pH of the solution to be 3-4, heating to the temperature of 70-80 DEG C, stirring for 2-4 hours, removing ethanol, and obtaining a modified inorganic filler; and 3) heating 5-10 parts by weight of paraffin to be melted, adding 5-10 parts by weight of base oil and the modified inorganic filler prepared in the previous step, and fully mixing to prepare the phase change heat-conducting thermal silicone grease composition. The phase change heat-conducting thermal silicone grease is high in heat-conducting coefficient and high in heat transfer capacity, and the excessive heat of the CPU can be rapidly derived, so that the service life of the CPU is prolonged, and the preparation process is simple.

The invention relates to an organic waste biochemical processor comprising a fermenting and drying chamber with a U-shaped cross section, wherein the upper end of the fermenting and drying chamber is provided with a feeding hole, and the lower end of the fermenting and drying chamber is provided with a discharging hole which is sealed by a discharging hole baffle plate; a hollow mixing shaft passes through both sides of the fermenting and drying chamber, the left end and the right end of the mixing shaft are respectively connected with a steam input pipe and a condensed water outlet pipe, the right end of the mixing shaft is connected with a reducing motor by a driving device, a hollow mixing blade is arranged on the mixing shaft, a cavity of the mixing blade is communicated with a cavity of the mixing shaft, the inner upper part of the fermenting and drying chamber is provided with an air distributing pipe, an air inlet of the air distributing pipe is communicated to an air outlet of a heat exchanger outside the fermenting and drying chamber, an air outlet of the air distributing pipe is positioned into the fermenting and drying chamber, and the upper part of the fermenting and drying chamber is provided with a humidity discharging hole which is communicated to an inlet of a dust collector of a waste gas processing device by a humidity discharging duct. The organic waste biochemical processor has low pollution and can sufficiently ferment and dry the organic waste by oxygen.

The invention relates to an LED lamp with high power, which comprises a heat-conducting and insulating substrate and a heat conducting pillar which has the same thickness of the substrate and is embedded in the substrate; the lower surface of the pillar is connected with a heat dissipating plate, and the upper surface thereof is fixed with a chip; the upper surface of the substrate is fixed with a transparent housing and is provided with a circuit and electrodes; the periphery of the substrate is provided with a through hole used for the circuit passing through; the bottom of the through hole is connected with a conductive electrode plate; and a lens is encapsulated on the transparent housing of the substrate. The LED lamp with high power has unique structure, breaks through the design of traditional LED lamp, can improve the reliability and consistency of the products; and simultaneously, by utilizing machinery equipments for production, the production efficiency is greatly improved and the product cost is reduced.

The invention discloses a high performance XNBR rubber containing graphene oxide and its preparation method. The preparation method comprises the following steps: adding graphite oxide into a surface modifier for ultrasonic stripping; carrying out centrifugal separation so as to obtain surface modified single-layer graphene oxide; mixing the single-layer graphene oxide with XNBR rubber latex; then successively adding an anti-aging agent and a flocculant and preparing a rubber mixture by using a co-coagulation method; and adding a vulcanizing agent for vulcanization so as to obtain graphene oxide-containing XNBR vulcanized rubber with high mechanical properties and high thermal conductivity. According to the invention, since the surface modifier is added in the process of stripping, stability and surface tension of graphene oxide suspension are changed, graphene oxide and the latex are allowed be uniformly mixed, and the degree of homodisperse of graphene oxide in a polymer is improved, and therefore, the purpose of improving mechanical strength of XNBR is achieved.

The invention relates to a large-power module cooling structure of an electric vehicle controller, which comprises at least one heat pipe and a radiation bottom plate which is arranged on a large-power module, wherein the heat pipe has an inner cavity in which a phase-change material is provided; the heat pipe comprises a heat pipe main body and at least one extension part; the heat pipe main body is inserted into the radiation bottom plate and tightly contacted with the radiation bottom plate; the extension part is communicated with the heat pipe main body and extends and exposes out of the radiation bottom plate from the heat pipe main body; preferably, two extension parts are arranged at the two ends of the heat pipe main body respectively; the heat pipe main body is horizontally inserted into the radiation bottom plate; and the large-power module cooling structure also comprises an auxiliary radiation device which is arranged in combination with the extension parts for radiating heat of the extension parts. The large-power module cooling structure of the electric vehicle controller of the invention has ingenuous design and improves the radiation, stability and reliability of the large-power module, so that the performance of the controller and the whole vehicle performance are improved. Moreover, the large-power module cooling structure of the electric vehicle controller has a simple structure and is suitable for large-scale popularization and application.

The invention discloses a semiconductor packaging structure for stacking and a manufacturing method thereof. The semiconductor packaging structure comprises a bottom substrate, a chip, an annular switchover substrate and packaging colloid. The bottom substrate is provided with a plurality of welding pads and a chip bearing area; the chip is fixedly arranged on the chip bearing area of the bottom substrate; a plurality of switchover assemblies and an opening are arranged on the annular switchover substrate; the switchover assemblies surround the opening and are electrically connected with the welding pads of the bottom substrate; the packaging colloid is filled in a gap between the bottom substrate and the annular switchover substrate, and is filled in the opening of the annular switchover substrate; and the packaging colloid in the opening is exposed to one top surface of the chip. With the adoption of the annular switchover substrate, the upper side and the lower side of a packaged body are slightly different in coefficient of thermal expansion, so that the warping rate is relatively lowered.

The invention discloses a low-voltage distribution cabinet with a heat dissipation and dust prevention function. The low-voltage distribution cabinet comprises a cabinet body and a heat dissipation plate, wherein a top cover is arranged at the top of the cabinet body; the bottom of the cabinet body is fixed on a base; a cabinet door is arranged on the front surface of the cabinet body; a mountingplate is fixed in the cabinet body; an air outlet is formed in the back surface of the cabinet body; the heat dissipation plate is attached to the back surface of the mounting plate; a heat circulating pipe is arranged on the heat dissipation plate; a pump shell is fixed on the heat circulating pipe; the inside of the pump shell is connected with a rotating shaft of a motor in a rotatable manner;a first fan blade is fixed on the rotating shaft in the pump shell; the motor is fixed on the air outlet through a fixing rod. According to the low-voltage distribution cabinet with the heat dissipation and dust prevention functions, through combination of the heat dissipation plate and the heat circulating pipe, heat conduction liquid in the heat circulating pipe is circulated through the first fan blade to accelerate discharging of heat; convection is formed on the surfaces of heat dissipation fins through a second fan blade, so that the heat dissipation effect is enhanced; electrical elements are isolated from external air flow, so that entry of dust is prevented, and the dust prevention effect is thorough.

The invention discloses a system and method for pyrolyzing coal. The system comprises a moving bed pyrolysis reactor and a spray tower; the reactor comprises a coal material inlet, a semicoke outlet, regenerative radiant tubes, oil gas exporting pipelines, a stirring device and gas collecting tubes; the regenerative radiant tubes are arranged in the reactor in the height direction of the reactor for multiple layers, and multiple regenerative radiant tubes which are parallel to one another in the horizontal direction are arranged on each layer; through holes are formed in the pipe walls of the oil gas exporting pipelines; the stirring device comprises a stirring shaft and multiple stirring rods connected to the stirring shaft; the gas collecting tubes comprise the gas collecting header tube and the gas collecting branch tubes, and the gas collecting header tube is connected with the spray tower. According to the system, powdered coal can be effectively treated, and the treatment efficiency is high; meanwhile, oil gas resources generated through pyrolysis can be quickly exported, secondary reactions are few, the tar oil quality is high, and the content of light components in tar oil is high; in addition, due to the fact that the regenerative radiant tubes are adopted in the pyrolysis reactor and rotatable inner elements are arranged in the regenerative radiant tubes, heat transfer among particles and between the particles and the radiant tubes is increased, and the heat transfer efficiency is high.

The invention discloses graphite phase-change thermal conduction silicone grease and a preparation method thereof. The preparation method comprises the steps as follows: heating and melting high-precision paraffin; adding nano porous graphite into the molten high-precision paraffin and stirring to obtain nano porous graphite encapsulated in the high-precision paraffin; and mixing the nano porous graphite encapsulated in the high-precision paraffin with organosilicon oil to obtain high thermal conductivity silicone grease taking a nano porous graphite based phase-change material as the filling material. The preparation method provided by the invention is simple and feasible; and the obtained high thermal conductivity silicone grease product has an excellent temperature reduction effect when used on light-focusing cells, can be used repeatedly, and has a relatively service life.

The invention provides an antibacterial hygienic material made from bamboo proto fibers and a manufacturing process and application thereof. The material consists of the following raw materials in percentage by mass: 30 to 60 percent of one of waste bamboo proto fibers or bamboo proto fibers or mixture of waste bamboo proto fibers and bamboo proto fibers, 10 to 60 percent of viscose fibers, 0 to 30 percent of polyester fibers, and 8 to 12 percent of one of hot melt fibers or hot melt powder or latex. The material is prepared according to different raw material formulas and manufacturing processes; the high-permeable moisture-transfer natural antibacterial hygienic material is mainly applied to disposable hygienic products, ensures comfort of the human excretion part, can effectively inhibit bacteria from infringing upon the human body, and is safe, efficient, healthy and environment-friendly; and the process has the advantages of short production flow, simple operation, high efficiency and low cost. The waste bamboo proto fibers are reclaimed wastes generated in the textile processing process, so environmental pollution is lightened, and resources are saved.

The invention provides a user identity-based input association recommendation method. The method comprises the steps of identifying a user identity according to a search scene of a user, and trackinga search behavior log corresponding to the user identity; adding the search behavior log to an existing input association candidate model, and generating input association candidate word banks after fusion; receiving a search query input by the user, and sorting the input association candidate word banks after fusion in combination with the search query; and recommending the sorted input association candidate word banks as a recommendation result of the search query. Therefore, the user identity can be uniquely identified in a complex network environment, a search clicking behavior of the useris stably and continuously recorded, and a foundation is laid for subsequently providing recommendation information for the user pointedly. According to the method, the required information can be recommended for the user more accurately; the exporting and importing of input association are greatly improved; the search cost of the user is reduced; and the search experience of the user is improved.

The invention relates to glass with antistatic, hydrophobic and anti-reflection functions and a preparation method of the glass. The preparation method comprises the steps of firstly, respectively preparing anti-reflection sol and anti-static hydrophobic sol by adopting a sol-gel method, and then plating a certain layer and number of anti-reflection films and anti-static hydrophobic films on the surface of the glass by using a lifting coating method. In the process, the thickness of the films, the dosage of a modifier and a heat treatment system are controlled, performance indexes such as therefractive index, the transmittance and the reflectivity of the films can be regulated and controlled, and the prepared glass has multiple functions of static electricity prevention, hydrophobizationand anti-reflection, is particularly suitable for being used as a solar cell cover plate without cleaning and maintenance and is applied to arid and dusty areas.

The invention relates to an insulating heat conduction coating, which comprises the following components in part by weight: 110 to 180 parts of organic solvent, 100 to 150 parts of plastic substrate and 30 to 50 parts of inorganic filler, wherein the organic solvent is one or a mixture of more than two of tetralin, trichlorobenzene, dimethylbenzene, cyclohexanone, acetate, ethane, benzene and trichloromethane; the plastic substrate is one or a mixture of more than two of polypropylene plastics, polyethylene plastics and polyphenylene sulfide plastics; and the inorganic filler is one or a mixture of more than two of magnesium oxide powder, aluminum oxide powder and silicon carbide powder. A preparation method for the insulating heat conduction coating comprises the following steps of: performing hot melting, stirring and mixing. The insulating heat conduction coating serving as a main layer is coated in an inner cavity of a metal shell of a lithium ion battery, so that the heat dissipated by the battery in the using process can be led out quickly; and the integral shell is insulated from the battery to prevent electrolyte in the long-term using process from corroding the metal shell, so the thermorunaway and sealing failure of the lithium ion battery can be reduced effectively.

The invention relates to a packaging structure of a light source of a high power light emitting diode (LED), especially to a packaging structure of a light source of a high power LED, wherein a low temperature co-fired ceramic (LTCC) technology is applied to the packaging structure. The packaging structure comprises a ceramic substrate, an LED chip and a metal heat-dissipating base, wherein the LED chip is fixed on the substrate. According to the invention, the LTCC substrate is a slice; a conductive channel is printed on the slice; and the conductive channel is mutually independent with other electrical conductors. Besides, layers of the LTCC and a circuit layout in the LTCC are set according to a design demand. Moreover, in order to improve a heat conducting property of the structure, a large area of a metal material is employed to enable heat at the bottom of the chip to be rapidly led out to the metal heat-dissipating base. On the whole, the packaging structure provided in the invention is suitable for packaging with high power and multiple chips as well as can be applied to packaging of a three primary color light source and a white light LED light source.

The embodiment of the invention provides a flexible display panel, a manufacturing method thereof and a flexible display device, and relates to the technical field of displaying. On the premise that good bending performance and display performance of the flexible display panel are guaranteed, the cooling performance of the flexible display panel is improved. The flexible display panel comprises aflexible substrate body and a display layer arranged on the flexible substrate body; the flexible substrate body comprises at least two flexible substrates, and at least one flexible substrate is doped with a particulate material with heat-conducting performance; moreover, in the direction away from the display layer, the concentration of the particulate material doped in the flexible substrates is gradually increased. The flexible display panel is used for achieving image display.

The invention discloses a piece of manual tufting carpet with moisture absorption and moisture guide functions and a weaving method of the manual tufting carpet. The carpet is woven by Coolmax fiber subjected to alkali weight reducing processing, after the Coolmax fiber is subjected to the alkali weight reducing processing, the cross section of the Coolmax fiber has special groove structures, the surface area is increased, the moisture absorption and moisture guide functions are further improved, fiber broken end and loop end alternate arrangement at intervals is adopted in the weaving method, the loop end and broken end height difference is regulated, the three-dimensional effect of veins is enhanced, the contact area between the Coolmax fiber and the air is increased, the moisture absorption and moisture guide speed is accelerated, and the function is enhanced. Bottom cloth with nonuniform warp and weft yarns, thick warp yarns, thin weft yarns and low density is used at the bottom of the carpet, so gap passages are formed on contact surfaces between the bottom and the ground, air with high humidity can be fast guided out from the bottom of the carpet, the moisture absorption and moisture guide effects of the carpet are promoted, the use comfort of the carpet is improved, the Coolmax cheese weight reducing time is controlled in the weaving process, and the twist degree of the weight reducing fiber is properly increased, so the softness of the carpet is enhanced, and the falling cannot easily occur.

The invention relates to a novel air-cooled motor based on heat pipe heat-conduction technology. The novel air-cooled motor comprises a stator, heat pipes and a fin set. The heat pipes for heat conduction connect the stator with the fin set therebetween. The novel air-cooled motor based on the heat pipe heat-conduction technology further comprises a shaft, a rotor, magnetic steel, a winding, an end cover and a support. The shaft drives the rotor to rotate. The magnetic steel is fixed on the rotor. The winding is fixed on the stator. The stator is arranged in a manner of surrounding the rotor. The base is arranged in a manner of surrounding the stator. The end cover is fixed to the end of the base. The shaft penetrates through the end cover. The novel air-cooled motor has high heat radiation effect. A spiral water channel in the housing according to prior art is not required. The novel air-cooled motor has advantages of realizing simple and compact structure, reducing risk that cooling water accidentally enters the motor, and reducing burden of an automotive water cooling system. The novel air-cooled motor belongs to the technical field of components of new-energy vehicles.

The invention provides a cooling device used in a respirator. The cooling device comprises a shell body (1) and an air flow barrel, a sealing cavity is formed between the shell body and the air flow barrel and used for accommodating cooling agent, and the inner wall and the outer wall of the air flow barrel are respectively provided with heat exchange sheets. High temperature oxygen in the respirator inters into the air flow barrel, blocked by a guide flow blocking plate of the heat exchange sheets inside the air flow barrel, and guided to guide flow holes; accordingly heat conduction performance is enhanced, heat of high temperature air is quickly transmitted to the outside of the air flow barrel and then performed with fusing heat absorption through the cooling agent to efficiently lower temperature, temperature of the high temperature air is brought out, and further temperature of the high temperature air is quickly dropped to below 35 DEG C to be provided for human bodies to breathe. The cooling device used in the respirator effectively solves the cooling problem of rescue and working respirator; overcomes the shortcomings that existing chemical oxygen generation respirators are not provided with cooling devices, can only be applied to self-rescue, and cannot be used for working; expands application range of rescue and working respirators, enables respirator users to be more comfortable and smoother in breathing, and ensures safety of the users.

The invention discloses a laser emitter which comprises a driving circuit, an AlN substrate and a laser tube core. Components of the driving circuit are integrated on the AlN substrate; the laser tubecore is attached to the AlN substrate; and the driving circuit is electrically connected with the laser tube core. According to the laser emitter, components of the driving circuit and a laser arrayare integrated, the parasitic impedance of the driving circuit and a laser path is reduced, fewer technical steps are included, heave-current narrow-pulse laser emission under a temperature control condition can be provided, and an optical collimation function is provided.

The invention discloses an LED (light-emitting diode) tube core with a ZnO-micron and nano composite structure and a preparation method of the composite structure. The LED tube core is prepared in a way that a ZnO-micron graphic array grows on a luminous surface of the LED tube core and a nano rod vertically grows on the ZnO-micron graphic array.; The preparation method comprises the following steps: (1) planting an LED epitaxial wafer and preparing the LED tube core with a complete structure; (2) sputtering a layer of ZnO seed layer on the LED luminous surface; (3) preparing a photoresist micron periodic pattern on the LED surface; (4) taking the photoresist micron periodic pattern as a template to grow the ZnO-micron graphic array; (5) removing photoresist by glue removing liquid to obtain the ZnO-micron graphic array; (6) sputtering a layer of ZnO seed layer on the ZnO-micron graphic array, and (7) growing a ZnO nano rod array on the ZnO-micron graphic array. According to the invention, not only can the emitted light be extracted at higher ratio, but also the uniformity of light emitted from the entire light emitting surface of the light emitting diode is guaranteed.

The invention relates to the technical field of new energy vehicles, in particular to a battery heat dissipation device special for a new energy vehicle. The battery heat dissipation device special for the new energy vehicle comprises a battery pack heat exchange mechanism, a radiator and a heat exchange liquid circulation assembly, wherein the battery pack heat exchange mechanism comprises a main heat exchange shell formed by assembling an upper shell and a lower shell, a first cavity used for heat exchange of a battery pack is formed in an inner cavity of the upper shell, and a second cavity used for letting in cooling liquid is formed in an inner cavity of the lower shell. A partition plate used for partitioning the upper shell and the lower shell and a supporting piece used for bearing the battery pack are sequentially arranged in an inner cavity of the main heat exchange shell from bottom to top. The device has the beneficial effects that an immersion type heat exchange mode is adopted, the heat exchange efficiency is better, heat generated during operation of the battery pack can be rapidly guided out so as to avoid long-time accumulation of the heat in the battery, the risk of causing a fire disaster is reduced, and the whole battery is safer in the practical process.

The invention relates to a separated heat radiation type novel motor based on a heat pipe. The separated heat radiation type novel motor comprises a motor core, a motor housing, a water-cooled circulating system and the heat pipe. The motor core is arranged in the motor housing. The heat pipe for heat conduction connects the motor housing with the water-cooled circulating system. The water-cooled circulating system is separated from the motor core and the motor housing. The separated heat radiation type novel motor has advantages of small integral weight, compact structure, small size and high heat radiation speed. The separated heat radiation type novel motor is particularly suitable for new-energy vehicles and belongs to the technical field of components of the new-energy vehicles.

The invention discloses a pressure relief type shock absorber for drill stems. The pressure relief type shock absorber for the drill stems comprises a shock absorption unit and a pressure relief unit. The pressure relief unit comprises a cylinder sleeve and a pressure relief piston. The cylinder sleeve is arranged on the inner wall of a connection barrel coaxially to form a first sealing plane. The upper portion and the lower portion of the periphery of the pressure relief piston are concave in the radial direction to form a first groove, the middle of the periphery of the pressure relief piston is concave inwards to form a second groove, and a first sealing piece is arranged in the first groove annularly. At least one first pressure relief hole is formed in the portion, between a shock absorption piston and the pressure relief piston, of a drainage pipe in the radial direction. At least one second pressure relief hole is formed in the portions, below the first pressure relief holes, of the connection cylinder and the cylinder sleeve in the radial direction. The diameter of the second pressure relief holes is smaller than the axial length of the second groove. According to the pressure relief type shock absorber for the drill stems, pressure can be relieved through the pressure relief unit when the shock impact of the drill stems is larger than the limitation of shock absorption force, shock is absorbed through the shock absorption unit when the shock impact of the drill stems is smaller than the limitation of shock absorption force, and harmful shock generated by drill bits and the drill stems in the drilling process can be effectively absorbed.

The invention relates to a radiating structure of electronic assemblies, which comprises a radiating fin, an aluminum radiating base arranged on the radiating fin and at least one electronic assembly arranged on the aluminum radiating base, wherein at least one copper column heat conductor is arranged on the aluminum radiating base via a mold in a forcibly-pressed manner with the position corresponding thereto, so that heat conduction for the electronic assemblies can be realized, thus achieving the advantages of low manufacturing cost, fast production, reduced manufacturing procedures, good environmental friendliness and high radiating efficiency.

The invention discloses a soil remediation device for ecological environmental protection engineering and a remediation method thereof, and relates to the technical field of soil remediation devices.In order to pretreat soil before remediation and improve the remediation effect of a remediation agent on the soil conveniently, the soil remediation device specifically comprises a shell, a crushingassembly and a stirring assembly, a supporting plate is welded to the inner wall of one side of the shell, a base is welded to the outer wall of the top of the supporting plate, two lead screw slidingtable assemblies are fixed to the outer wall of the top of the supporting plate through bolts, first fixing frames are fixed to the sliding ends of the two lead screw sliding table assemblies throughbolts correspondingly, connecting rods are rotatably connected to the inner walls of the two first fixing frames through rotating shafts correspondingly, a filtering box is connected to the outer wall of the top of the base through a hinge, and two second fixing frames are fixed to the outer wall of the bottom of the filtering box through bolts. By arranging a first electric push rod and a pressing plate, soil can be extruded through external force, and a filtering plate can increase the filtering rate of large particles such as stones in the soil.

The invention belongs to a secure system of a nuclear power plant, and in particular relates to an active and passive combined containment sump water cooling system. The system comprises a cooling water tank, a sump hydrothermal exchanger, a cold water pipeline, a hot water pipeline, an inlet isolation valve, an outlet isolation valve, an injection pump and a water taking pipeline. After the nuclear power plant meets an accident, the active and passive combined containment sump water cooling system is used for cooling containment sump water so as to finally guide heat in a containment out to the environment; therefore, temperature rise and pressure rise, which are caused by boiling of sump water, of the containment are prevented, and the completeness of the containment is finally kept.

The invention relates to a straw guide mechanism. The straw guide mechanism comprises guide crawlers arranged below the low ends of evening rods, the crawler surfaces of the guide crawlers are horizontal and are parallel to the vehicle length direction, two groups of guiding conveying clamping rollers are arranged at outlets of the guide crawlers, roller cores of the two groups of guiding conveying clamping rollers are horizontal and perpendicular to the length directions of the guide crawlers, the two groups of guiding conveying clamping rollers are arranged in the vertical direction, the roller surfaces fit, a power unit drives the guiding conveying clamping rollers to reversely rotate, the guide crawlers rotate for guiding and conveying straw to the portion located between the two groups of guiding conveying clamping rollers, and the straw is located on the guide crawlers and show the jagged stage. High-speed guiding conveying of the straw is achieved through the two groups of guiding conveying clamping rollers rotating at high speed, the straw is horizontally and rapidly guided out of the portion between the two groups of guiding conveying clamping rollers, accelerating of straw guiding is achieved accordingly, it is guaranteed that the straw is guided out to be guide out according to the flushing state of the straw, aligning operation of the straw is achieved, alignment ofone ends of the straw is achieved accordingly, and it is guaranteed that the straw guiding into planting holes can be evenly distributed in the planting holes.

The invention discloses an LED street lamp and an LED street lamp display system; the LED street lamp comprises a lamp shell and a lamp holder which are fixedly connected; the lamp shell is provided with a radiating device, the lamp holder is provided with at least one group of LED units, and any one LED unit comprises a package body and at least two LED film chips which are mutually stacked; at least two pairs of P-N junctions are arranged in each LED film chip, and each pair of P-N junctions comprise an interface; all the interfaces are mutually connected or stacked; the lamp holder also comprises a metal alloy PCB, and all groups of LED units are arranged on the metal alloy PCB; the lamp shell is provided with a light outlet which is used for emitting the light given off by all groups of LED units outside; in addition, transparent silicone layers are arranged between the light outlet and all the LED units; and the LED street lamp display system comprises at least two LED street lamps and a control device. The LED street lamp has the advantages of high brightness, low loss and concentrated illumination.

The invention discloses a high-power pulse width tunable semiconductor laser light source module, which utilizes optoelectronic integrated packaging technology to integrate laser drive control and a laser for package, performs fiber output on semiconductor laser coupling through a polarization combining technique and a self-focusing lens fiber coupling technology to achieve high peak power, smallvolume and narrow pulse, and uses an external trigger signal to realize pulse width tunable function. Compared with fiber lasers and solid lasers, the high-power pulse width tunable semiconductor laser light source module has obvious advantages in performance, cost and photoelectric conversion efficiency.

The invention relates to a hydraulic pump for an excavator. The hydraulic pump comprises a shell, a pair of rotary hydraulic cylinders arranged in the shell, and a pair of rotating shafts arranged parallelly to the rotary hydraulic cylinders, a supporting wall extends in the shell, a piston capable of reciprocating is arranged in each rotary hydraulic cylinder, the rotating shafts are connected through a coupler and used for driving the rotary hydraulic cylinders to rotate around the central axes, and an inclined disc used for receiving and guiding the corresponding piston is arranged for each rotary hydraulic cylinder and fixed relatively to the corresponding rotating shaft. The hydraulic pump is characterized in that the supporting wall is provided with a mounting hole, and the coupler is supported in the mounting hole through a sliding bearing. The invention further relates to the excavator comprising the hydraulic pump.