31results about How to "Enough cooling area" patented technology

The invention provides an LED bulb which comprises a lamp cap, a lamp holder, a light source module provided with an LED and a circuit board and a radiating column that is used for realizing omnibearing lighting angel by increasing the height of a light source and has the function of radiating; wherein, the lamp holder is a radiator, one end of which is connected with the lamp cap, and the other end is provided with the radiating column; the free end of the radiating column is fixed with the light source module; thus, the radiating column can heighten the position of the light source to shift the light source out of the lamp holder and increase the irradiation angle of the light source, thus realizing approximate 360-degree lighting effect of the LED bulb and improving the defect that the light rays of the LED are blocked out by the lamp holder since the LED is installed at the rear part of a base plate of the lamp holder, close to the horizontal direction; the radiating column also has the function of radiating, so that the heat generated by the LED in the working period can be quickly transferred to the radiating aluminum lamp holder contacted with the air through the radiating column, thus enlarging the radiating area, fully guaranteeing the radiating requirements and the service life of the LED, reducing the weight of the high-power LED bulb and not increasing the size of the bulb.

The invention discloses a reflection type LED (Light-Emitting Diode) high beam for a vehicle. The high beam comprises a reflector cup, an LED mounting column, a reflector cup bracket and a radiating shell; the inner surface of the reflector cup is a regular curve; the cross section of the LED mounting column is a polygon; the LED mounting column is arranged at the inner side of the regular curve and pointed to the focus of the regular curve; an LED chip is arranged on at least one surface of the LED mounting column and located in the focus of the regular curve; and the reflector cup bracket is arranged between the reflector cup and the radiating shell and used for supporting the reflector cup.

The invention discloses a reinforcement construction method and particularly relates to a construction method for reinforcing a large rock slope deep weak structural plane. The construction method comprises the following steps: A, excavating a main tunnel along the direction of the deep weak structural plane of a rock slope, performing temporary support, and then drilling drainage holes on a tunnel soffit; B, excavating branch tunnels from two side walls of the main tunnel to the top wall and bottom wall directions of the deep weak structural plane, performing temporary support and then drilling drainage holes on tunnel soffits; and C, backfilling concretes into the main tunnel and the branch tunnels, and arranging steel bars to reinforce the backfilled concrete, wherein concrete backfilling is at least divided into two following construction period: in the first construction period, the backfilled concretes are backfilled along the peripheral inner walls of the main tunnel and the branch tunnels in a covering way, backfilling layers of the first construction period are formed on the walls of the main tunnel and the branch tunnels after the first construction period of concrete backfilling is finished, and the residual spaces of the main tunnel and the branch tunnels are utilized as grouting galleries; and after the backfilled concretes of the first construction period are solidified, the backfilled concretes of the residual construction period are utilized to fill the whole grouting galleries.

The invention provides a heat-conducting bonding pad and a package structure of a QFP chip with the heat-conducting bonding pad. The heat-conducting bonding pad comprises a bonding pad region and a peripheral region, wherein the bonding pad region is provided with a plurality of bonding pad parts which are arranged in an array; and gaps are formed among the bonding pad parts. The bonding pad parts of the heat-conducting bonding pad are arranged in the array and are isolated from one another, and the area of the bonding pad parts is greatly reduced, so that, on one hand, the escape path of a gas generated by soldering flux pyrolysis in a solder paste in a high-temperature welding process is shortened; and on the other hand, the gaps between the adjacent bonding pad parts provide channels for escape of the gas; the gas can timely escape; the area and the quantity of bubbles are effectively reduced; the condition that the chip has enough heat radiating area is ensured; and the heat radiating effect is improved. Meanwhile, the effective area of a conductor formed by the bonding pad is increased, so that the grounding impedance of the chip is reduced; and the reliability of the chip is improved. The welding effect of the heat-conducting bonding pad is improved; and excessive floating of the chip is avoided, so that the welding reliability of peripheral pins is improved.

The invention relates to a heat dissipating structure of a cylindrical battery module. The heat dissipating structure comprises a fixing bracket, batteries and a busbar, wherein the batteries are mounted on the fixing bracket and are distributed in parallel, and the busbar is integrated into the fixing bracket; the fixing bracket is made from heat-conducting plastics, and a heat conducting block structure is formed, so that two poles of each battery are fixedly arranged in a heat conducting block separately; the busbar is of a heat conductor, and the heat conductor is embedded in the heat conducting block. According to the heat dissipating structure, a battery mounting bracket is made from a heat conducting material, so that the batteries have a sufficient heat dissipating area, and the heat dissipating efficiency is relatively high; the metallic busbar inside the battery bracket is also used for conducting heat, and the overall temperature difference of the battery bracket can be controlled while heat is transferred rapidly due to the high heat conductivity of the battery bracket, so that the concentration of heat cannot be caused; a liquid cooling plate is additionally arranged outside the battery module, so that the heat dissipating effect is improved.

The invention relates to the technical field of vacuum metallurgical equipment, in particular to an electro-magnetic induction internal thermal type metallic magnesium vacuum reduction furnace which comprises a furnace body. A material basket (8) is arranged in the furnace body, and a central channel penetrating through the bottom face of the material basket (8) is formed in the center of the material basket (8). One or more heating cylinders (7) are concentrically arranged in the material basket (8). The material basket (8) and the heating cylinders (7) are filled with furnace burdens (9). A rectangular iron core is arranged in the furnace body. One long edge of the rectangular iron core penetrates through the central channel of the material basket (8), and a primary side coil (12) is wound around the other long edge of the rectangular iron core. The leading-out end of a copper winding of the primary side coil (12) is led out of the furnace through an insulated sealing device on the furnace body and is connected with a power source device. The electro-magnetic induction internal thermal type metallic magnesium vacuum reduction furnace is reasonable in design, distribution of a temperature field of the reduction furnace can be regulated, and heat transfer efficiency is high; the vacuum reduction furnace is used for high-vapor-pressure metallothermics production of magnesium, lithium, strontium, calcium and the like.

The present invention relates to a virtual instrument platform. The platform comprises a housing, a board card and a mainboard, wherein the mainboard and the board card can be detachably connected to each other, both the board card and the main board are located out of the housing, a board card interface hole is pre-arranged on the surface of the housing, and a board card interface that connects the board card with an external device is exposed outside by means of the board card interface hole. The virtual instrument platform further comprises a touch display screen, wherein the touch display screen is mounted on the housing and forms a panel structure together with the housing. In the implementation mode of the present invention, the housing further comprises a body and a side cover, wherein the side cover and the body can be detachably connected with each other and the side cover is located on one side of the board card. Compared with the prior art, the virtual instrument platform provided by the present invention has an in-built board card, has relatively high mobility and stability and has a better weak three-proofing ability, without being limited by the application environment and the scenarios.

The invention discloses an LED lamp heat dissipation structure and an LED energy-saving lamp with the same. A first heat dissipation component is an outer side heat dissipation component of the LED lamp heat dissipation structure, and a second heat dissipation component is an inner side heat dissipation component of the LED lamp heat dissipation structure; a plurality of protruding second heat dissipation fins are distributed on the outer side face of the second heat dissipation component in a connected mode, the first heat dissipation component is arranged on the outer side of the second heat dissipation component in a connected mode, a plurality of protruding first heat dissipation fins are distributed on the inner side face and the outer side face of the body of the first heat dissipation component in a connected mode, and heat dissipation height separation space where heat generated when an LED chip works is rapidly conducted to the second heat dissipation component and radiated in convective air is reserved between the bottom end of the inverted first heat dissipation component and the outer side of the second heat dissipation component. The LED lamp heat dissipation structure has sufficient heat dissipation areas, has more heat dissipation areas than a conventional heat dissipation aluminum piece, has more convective air mass flow, can rapidly produce cross ventilation of an inner cavity and an outer cavity of the heat dissipation aluminum piece, and reaches the effect that the heat is rapidly scattered.

The invention provides an LED bulb which comprises a lamp cap, a lamp holder, a light source module provided with an LED and a circuit board and a radiating column that is used for realizing omnibearing lighting angel by increasing the height of a light source and has the function of radiating; wherein, the lamp holder is a radiator, one end of which is connected with the lamp cap, and the other end is provided with the radiating column; the free end of the radiating column is fixed with the light source module; thus, the radiating column can heighten the position of the light source to shiftthe light source out of the lamp holder and increase the irradiation angle of the light source, thus realizing approximate 360-degree lighting effect of the LED bulb and improving the defect that thelight rays of the LED are blocked out by the lamp holder since the LED is installed at the rear part of a base plate of the lamp holder, close to the horizontal direction; the radiating column also has the function of radiating, so that the heat generated by the LED in the working period can be quickly transferred to the radiating aluminum lamp holder contacted with the air through the radiating column, thus enlarging the radiating area, fully guaranteeing the radiating requirements and the service life of the LED, reducing the weight of the high-power LED bulb and not increasing the size of the bulb.

The invention discloses a plug-in mounting type quick radiating electricity generator. The plug-in mounting type quick radiating electricity generator comprises a generator shell, a stator and a rotor; a fan for supplying air to radiating rib strips is arranged on a rotor shaft; sector grooves are formed in the edges of rotor stamping sheets, and magnetic shoes are arranged in the sector grooves. When the plug-in mounting type quick radiating electricity generator works, as the rotor shaft rotates to drive the fan to rotate synchronously, and the fan cools the radiating rib strips with the air, the radiating speed of the generator shell can be increased, the temperature of the stator of the electricity generator can drop more quickly, and long-time stable work of the electricity generator can be guaranteed. A rotating magnetic field is formed by the rotor through the magnetic shoes, the magnetic flux density of a stator coil is larger, so that the size of the electricity generator is smaller, and the electricity generation efficiency is higher. When the magnetic shoes are assembled, the positions of the magnetic shoes can be limited through the sector grooves, so that the problem that the positions of the magnetic shoes are difficult to fix due to the influences of magnetic force is solved; the assembly efficiency can be greatly improved.

The invention discloses a high-efficiency street lamp heat-radiating structure which comprises a lamp body, wherein a main support is arranged in the lamp body, an LED (light-emitting diode) light source module is arranged at the lower part of the lamp body, heat-radiating cavities communicated with the main support are arranged at two sides of the main support respectively, a downward side heat-radiating support is arranged in each heat-radiating cavity, an upward baffle heat-radiating support is arranged below each side heat-radiating support, a side ventilating plate is arranged below eachbaffle heat-radiating support, the lower parts of the main support and the side ventilating plates are respectively provided with lower venting holes, each side heat-radiating support of the high-efficiency street lamp heat-radiating structure is of a downward structure, the side heat-radiating supports and the baffle heat-radiating supports are arranged inside the lamp body, and the lower parts of the main support and the side ventilating plates are respectively provided with the lower ventilating holes, therefore, water accumulation and dust coverage are avoided, and a long-term heat-radiating effect is ensured; in addition, aluminum profile materials can be combined into the lateral heat-radiating supports and the baffle heat-radiating supports, and therefore, the weight of the street lamp is lightened by half compared with the traditional street lamp in the premise of ensuring enough heat-radiating area, not only the materials are saved, but also a long-term heat-radiating effect is ensured.

The invention relates to the field of manufacturing technologies for products such as heat radiators, and discloses an embedment technology of a section extruding structure and a pressure casting structure of dense blades. The technology comprises the following steps that firstly, a section extruding piece is manufactured; secondly, a pressure casting face is machined; thirdly, a pressure casting mold is designed; fourthly, the pressure casting mold is manufactured; and fifthly, in-mold pressure casting is carried out. The work efficiency of products manufactured through the technology is high, production in an assembly line scale manner can be achieved, and the machining amount is small, so that the embedment technology is completed, the reject ratio of the products is low, and meanwhile the production cost is reduced. Meanwhile, later CNC machining procedures can be reduced, high stability is achieved after the products are directly embedded, the overall structural strength is higher, and the service life of the products is longer. The products manufactured through the embedment technology are good in attachment performance and sealing performance, the section extruding structure and the pressure casting structure are perfectly embedded, good heat conduction capacity is achieved after embedment, the enough heat radiation area is achieved, and therefore the products overall have good heat radiation performance.

The invention discloses a light emitting diode (LED) automobile high beam, which comprises a reflecting cup. The high beam is characterized in that: the reflecting cup comprises a first parabolic surface, a second parabolic surface, a third parabolic surface and a fourth parabolic surface; the first parabolic surface is connected with the fourth parabolic surface; the first parabolic surface is totally symmetrical with the third parabolic surface, the second parabolic surface and the fourth parabolic surface are restrained by the same parabolic surface equation, and the area of the fourth parabolic surface is greater than that of the second parabolic surface; and the focal points of all the parabolic surfaces are superposed, an LED luminous source group is arranged at the focal points, and the LED luminous source group is fixed on an LED installation base. By adopting the automobile high beam, the emergent light spot is a rectangular light spot at the same time of ensuring that the emergent light is parallel light, and dizziness of the high beam and irradiation on human eyes are furthest reduced.

The invention discloses a novel process for processing sections of a finned radiator, and relates to the technical field of radiator section processing, which aims to solve the technical problems of poor physical properties, poor mechanical properties and short service life of existing sections of the finned radiator. The novel process comprises the following steps of (1) treating aluminum blocksas raw materials so as to obtain aluminum alloy sections; (2) performing preliminary extrusion forming on a cooling plate on the aluminum alloy sections; (3) straightening and aging a workpiece whichis extruded in the previous step; (4) performing secondary extrusion forming on the cooling plate on the aluminum alloy sections; (5) straightening and aging the workpiece which is extruded in the previous step; (6) preparing before assembly; and (7) assembling, performing surface treatment, spraying, inspecting, packaging and warehousing. The novel process has the advantages of good mechanical properties, high production efficiency, low cost and long service life.

The invention discloses a high beam and low beam integrated vehicle lamp. The vehicle lamp comprises a shell, and a reflecting mirror, an LED light source and a lens which are sequentially arranged inthe shell. The light source comprises a low-beam light source and a high-beam light source, the reflecting mirror comprises a low-beam reflecting mirror and a high-beam reflecting mirror, a light blocking piece is arranged between the low-beam light source and the lens, and light emitted by the low-beam light source passes through the low-beam reflecting mirror, then is converged on the light blocking piece and then is emitted out through the lens to form a low-beam light type; the high-beam light source is arranged at the focus of the high-beam reflecting mirror, and light emitted by the high-beam light source passes through the high-beam reflecting mirror and then is emitted out through the lens to form a high-beam light type. The vehicle lamp is simple in structure, structures such asa light type switching movable device and a cooling fan are not needed, the complexity of the device is greatly reduced, the cost of the device is reduced, meanwhile, the light stability is high during light type switching, and the lighting effect is good.

The embodiment of the invention discloses a manufacturing method of an LED lamp body with a heat dissipating structure and the LED lamp body, wherein the LED lamp body comprises a plurality of LED light sources, a plurality of first connecting bodies and a metal plate body, wherein the first connecting bodies are distributed at intervals and used as connecting lines among the LED light sources; the metal plate bodies are used for dissipating heat; the first connecting bodies are distributed in gaps on the metal plate body at intervals; and the LED light sources are electrically connected among the first connecting bodies through respective electrodes and connected with the metal plate body through respectively heat conducting base plate. The embodiment of the invention forms the LED lamp body with heat dissipating structure by processing a metal plate and has simple mode; and in addition, the formed heat dissipating structure has no insulating base material, thereby having good heat conducting effect.

The present invention relates to a virtual instrument platform. The platform comprises a housing, a board card and a mainboard, wherein the mainboard and the board card can be detachably connected to each other, both the board card and the main board are located out of the housing, a board card interface hole is pre-arranged on the surface of the housing, and a board card interface that connects the board card with an external device is exposed outside by means of the board card interface hole. The virtual instrument platform further comprises a touch display screen, wherein the touch display screen is mounted on the housing and forms a panel structure together with the housing. In the implementation mode of the present invention, the housing further comprises a body and a side cover, wherein the side cover and the body can be detachably connected with each other and the side cover is located on one side of the board card. Compared with the prior art, the virtual instrument platform provided by the present invention has an in-built board card, has relatively high mobility and stability and has a better weak three-proofing ability, without being limited by the application environment and the scenarios.

The invention relates to a single-spiral embedded excitation type magnesium vacuum reduction furnace adopting electromagnetic induction inner heating. The magnesium vacuum reduction furnace comprisesa furnace body, wherein a plurality of cylindrical baskets are arranged in the furnace body in a honeycomb shape, a single excitation coil is embedded in the wall of each basket body, is introduced from the bottom of the wall of the basket body, rises spirally, and is led out from the top; the excitation coils of the plurality of baskets are connected in series, and then led outside the furnace body by an insulating sealing device on the furnace body to be connected with a power device; electric energy is transmitted to the baskets in a contactless manner to heat reaction furnace charge; the whole heating body is uniformly heated and cannot be damaged by local high temperature. The problems of severe excitation coil loss, high inductance leakage and high cost of required reactive power compensation capacitance of existing electric internal heating type vacuum reduction furnaces are solved. The vacuum reduction furnace is reasonable in design, distribution of the temperature field of the reduction furnace can be adjusted, and heat transfer efficiency is high. The vacuum reduction furnace is mainly used for high vapor pressure production of metals such as magnesium, lithium, strontium, calcium and the like with a thermal reduction method.

The invention discloses an LED lampwick for street lamp which has great heat dispersion, simple structure, low cost and convenience of improving original street lamps, comprising a circuit board and an LED mounted on the circuit board, further a base connected with a front cover of a lamp cover of original street lamps and made of heat radiating material, a first support element mounted on the circuit board and made of heat radiating material, a plurality of second support elements for supporting the first support element and made of heat radiating material and at least a radiating piece mounted between the base and the first supporting element; one end of the second supporting element is connected with the first supporting element and the other end is connected with the base. A pitch exists between two adjacent second supporting element; one end of the radiating piece is connected with the first supporting element and the other end is connected with the base.

The invention discloses an LED lampwick for street lamp which has great heat dispersion, simple structure, low cost and convenience of improving original street lamps, comprising a circuit board and an LED mounted on the circuit board, further a base connected with a front cover of a lamp cover of original street lamps and made of heat radiating material, a first support element mounted on the circuit board and made of heat radiating material, a plurality of second support elements for supporting the first support element and made of heat radiating material and at least a radiating piece mounted between the base and the first supporting element; one end of the second supporting element is connected with the first supporting element and the other end is connected with the base. A pitch exists between two adjacent second supporting element; one end of the radiating piece is connected with the first supporting element and the other end is connected with the base.

The invention discloses an LED lamp body type heat pipe radiating system comprising a lamp body in which a hollow cavity is arranged, an opening of the inner cavity of the lamp body is provided with a sealing glass plate, a fixing mechanism is arranged in the inner cavity of the lamp body, a liquid medium storing cavity for storing a radiating medium is formed between the sealing glass plate and the fixing mechanism, and an LED optical system is arranged in the liquid medium storing cavity, is connected to the surface of the fixing mechanism and faces the sealing glass plate; and a liquid filling hole is arranged at one side of the lamp body and is communicated with the liquid medium storing cavity. A body type heat pipe can be made into any sizes so as to arrange enough radiation area for a lamp; radiating fins of the body type heat pipe can be vertically arranged to avoid dust retention, and rainwater can ensure the cleanness of the radiating fins; the vertically arranged radiating fins have the radiation effect of strengthening natural convection; and the body type heat pipe has the function of rapidly equalizing the temperature of a bottom plate through fluid convection heat transfer.

The invention belongs to the field of electrical technology, in particular to a stainless steel piecewise adjustable resistor and an adjustable brake resistor. The adjustable resistor comprises a resistor body formed by welding a plurality of sub resistors end to end and U-shaped insulators. The head end of the sub resistor on one side and the tail end of the sub resistor on the other side form aresistor input end and a resistor output end respectively. Shorting copper bars are arranged on the resistor body. The U-shaped insulators are fixedly arranged between the stainless steel strips of the sub resistors. Through different lapping modes of the shorting copper bars, the resistor can output different resistances. The piecewise adjustable resistor is put into water to form a break resistor, and the resistance of the piecewise adjustable resistor and water determine the resistance of the brake resistor together. The piecewise adjustable resistor is in full contact with water. With theincrease of water temperature, the water absorbs a large amount of heat converted from electric energy. Thus, the safety of the piecewise adjustable resistor under very high current density is ensured, and fast speed reduction of a high-power and large-capacity motor is realized. The formed brake resistor has the advantages of high power, high current, resistance to high voltage and high energy absorption.

The invention discloses an optical machine for digital light processing. An optical modulation module and a second optical path module are stacked on the upper end of the first optical path module, so that in a three-dimensional coordinate system with the connection point between the optical modulation module and the first optical path module as the coordinate origin Among them, the propagation direction of the optical path is: reaching the projection lens along the negative direction of the X axis, the positive direction of the Z axis, and the positive direction of the X axis in turn; the projected area on the XOZ plane is larger than the projected area of ​​the digital light processing optical machine on the XOY plane; the first optical path module The side wall is provided with support feet extending along the negative direction of the Z-axis, and the support feet are used to support the first optical path module, so that there is an interval between the lower cover and the end face of the worktable; A plurality of terminals for optical device connection, and a plurality of thermal vias provide channels for conducting heat. The heat dissipation effect of the digital light processing optical engine is improved, and the total area of ​​the digital light processing optical engine is also reduced.

The invention discloses a reinforcement construction method and particularly relates to a construction method for reinforcing a large rock slope deep weak structural plane. The construction method comprises the following steps: A, excavating a main tunnel along the direction of the deep weak structural plane of a rock slope, performing temporary support, and then drilling drainage holes on a tunnel soffit; B, excavating branch tunnels from two side walls of the main tunnel to the top wall and bottom wall directions of the deep weak structural plane, performing temporary support and then drilling drainage holes on tunnel soffits; and C, backfilling concretes into the main tunnel and the branch tunnels, and arranging steel bars to reinforce the backfilled concrete, wherein concrete backfilling is at least divided into two following construction period: in the first construction period, the backfilled concretes are backfilled along the peripheral inner walls of the main tunnel and the branch tunnels in a covering way, backfilling layers of the first construction period are formed on the walls of the main tunnel and the branch tunnels after the first construction period of concrete backfilling is finished, and the residual spaces of the main tunnel and the branch tunnels are utilized as grouting galleries; and after the backfilled concretes of the first construction period are solidified, the backfilled concretes of the residual construction period are utilized to fill the whole grouting galleries.

The invention discloses a light emitting diode (LED) automobile high beam, which comprises a reflecting cup. The high beam is characterized in that: the reflecting cup comprises a first parabolic surface, a second parabolic surface, a third parabolic surface and a fourth parabolic surface; the first parabolic surface is connected with the fourth parabolic surface; the first parabolic surface is totally symmetrical with the third parabolic surface, the second parabolic surface and the fourth parabolic surface are restrained by the same parabolic surface equation, and the area of the fourth parabolic surface is greater than that of the second parabolic surface; and the focal points of all the parabolic surfaces are superposed, an LED luminous source group is arranged at the focal points, and the LED luminous source group is fixed on an LED installation base. By adopting the automobile high beam, the emergent light spot is a rectangular light spot at the same time of ensuring that the emergent light is parallel light, and dizziness of the high beam and irradiation on human eyes are furthest reduced.

The invention discloses a heat dissipation structure of an LED lamp and an LED energy-saving lamp adopting the heat dissipation structure, wherein the first heat dissipation component is an outer heat dissipation component of the LED light heat dissipation structure, and the second heat dissipation component is an inner heat dissipation component of the LED light heat dissipation structure; The outer surface of the second heat dissipation member is connected with a plurality of protruding second heat dissipation fins. A heat dissipation fin, the bottom end of the inverted first heat dissipation member and the outside of the second heat dissipation member leave a heat dissipation height separation space that conducts the heat generated by the LED chip to the second heat dissipation member and quickly radiates it in the convective air. With sufficient heat dissipation area, it has more heat dissipation area than conventional heat dissipation aluminum parts, and has more convective air flow, which can quickly generate air convection in the inner and outer cavity of heat dissipation aluminum parts, and achieve the effect of rapid heat evacuation.

The invention relates to the technical field of vacuum metallurgical equipment, in particular to an electro-magnetic induction internal thermal type metallic magnesium vacuum reduction furnace which comprises a furnace body. A material basket (8) is arranged in the furnace body, and a central channel penetrating through the bottom face of the material basket (8) is formed in the center of the material basket (8). One or more heating cylinders (7) are concentrically arranged in the material basket (8). The material basket (8) and the heating cylinders (7) are filled with furnace burdens (9). A rectangular iron core is arranged in the furnace body. One long edge of the rectangular iron core penetrates through the central channel of the material basket (8), and a primary side coil (12) is wound around the other long edge of the rectangular iron core. The leading-out end of a copper winding of the primary side coil (12) is led out of the furnace through an insulated sealing device on the furnace body and is connected with a power source device. The electro-magnetic induction internal thermal type metallic magnesium vacuum reduction furnace is reasonable in design, distribution of a temperature field of the reduction furnace can be regulated, and heat transfer efficiency is high; the vacuum reduction furnace is used for high-vapor-pressure metallothermics production of magnesium, lithium, strontium, calcium and the like.

The invention discloses a digital light processing machine, which is characterized in that a light modulation module and a second light path module are stacked at the upper end of a first light path module, so that in a three-dimensional coordinate system taking a connecting point of the light modulation module and the first light path module as an origin of coordinates, the light path propagation direction reaches a projection lens in the negative direction of an X axis, the positive direction of a Z axis and the positive direction of the X axis in sequence; the projection area on the XOZ plane is larger than the projection area of the digital light processing machine on the XOY plane; supporting legs extending in the negative direction of the Z axis are arranged on the side wall of the first light path module and used for supporting the first light path module, so that an interval space exists between the lower cover plate and the end face of the workbench; and the interval space accommodates a plurality of wiring terminals connected with an optical device in the first optical path module, and provides a heat conduction channel for the plurality of heat conduction holes. The overall heat dissipation effect of the digital optical processing machine is improved, and the overall occupied area of the digital optical processing machine is also reduced.

The invention discloses a high-efficiency street lamp heat-radiating structure which comprises a lamp body, wherein a main support is arranged in the lamp body, an LED (light-emitting diode) light source module is arranged at the lower part of the lamp body, heat-radiating cavities communicated with the main support are arranged at two sides of the main support respectively, a downward side heat-radiating support is arranged in each heat-radiating cavity, an upward baffle heat-radiating support is arranged below each side heat-radiating support, a side ventilating plate is arranged below eachbaffle heat-radiating support, the lower parts of the main support and the side ventilating plates are respectively provided with lower venting holes, each side heat-radiating support of the high-efficiency street lamp heat-radiating structure is of a downward structure, the side heat-radiating supports and the baffle heat-radiating supports are arranged inside the lamp body, and the lower parts of the main support and the side ventilating plates are respectively provided with the lower ventilating holes, therefore, water accumulation and dust coverage are avoided, and a long-term heat-radiating effect is ensured; in addition, aluminum profile materials can be combined into the lateral heat-radiating supports and the baffle heat-radiating supports, and therefore, the weight of the street lamp is lightened by half compared with the traditional street lamp in the premise of ensuring enough heat-radiating area, not only the materials are saved, but also a long-term heat-radiating effect is ensured.

The invention discloses a multi-path high-performance server capable of improving heat dissipation performance and a heat dissipation method thereof, and belongs to the technical field of server heatdissipation. According to the multi-path high-performance server for improving the heat dissipation performance, a case is designed into an upper layer and a lower layer, a complete machine fan and aCPU radiator are arranged on the upper layer of the case, the whole machine fan is arranged at the rear end of the case, the CPU radiator is arranged at the front end of the case, the CPU radiator comprises a CPU radiator fin and a CPU cooling fan, the CPU cooling fan is connected to the CPU radiator fin, and the CPU cooling fan is arranged on the front side of the CPU cooling fin; and a power module, a hard disk storage module and a panel cooling fan are arranged on the lower layer of the case, the hard disk storage module is arranged at the front end of the case, the power supply module is arranged at the rear part of the case, and the panel cooling fan is arranged at the rear end of the case. According to the multi-path high-performance server for improving the heat dissipation performance, the heat dissipation can be enhanced, so that the reliability of server products is improved, and the popularization and application values are good.