99results about How to "Speed up distribution" patented technology

The utility model relates to the technical field of VPX, and discloses an expansion structure of a VPX backboard, which comprises a backboard main body, the front end of the backboard main body is provided with radiating fins, the front end of the backboard main body is provided with a radiating fan, the front end of the backboard main body is provided with sliding grooves at the upper and lower parts, a protective cover plate is inserted in the sliding grooves, and the protective cover plate is connected with the radiating fan. A magnetic attraction block is arranged on the inner side of the front end of the protective cover plate, a rear limiting barrier strip is arranged on the outer side of the protective cover plate, and side metal blocks are arranged on the two sides of the sliding groove. According to the utility model, through the arrangement of the extended heat dissipation structure, a large amount of heat can be generated when VPX is used, and the two groups of protective cover plates slide in the sliding grooves at the front end of the backboard main body during operation, so that the magnetic attraction blocks on the protective cover plates are in magnetic contact with the side metal blocks at the two sides of the sliding grooves; and then the cooling fins and the cooling fan at the front end of the backboard main body are exposed, so that the heat generated by the operation in the VPX box can be dissipated quickly, and the heat dissipation function can be expanded.

The utility model discloses an FFC flexible flat cable high resolution transmission device, which relates to the FFC flat cable technology field, and comprises a connector main body and an interface slot, the interface slot is provided with a flat cable main body, and the joint of the flat cable main body and the interface slot is provided with a flat cable protection mechanism. The flat cable protection mechanism comprises a contraction cylinder, a straight cylinder and an expansion cylinder which sleeve one end, close to the interface slot, of the flat cable main body, the contraction cylinder and the expansion cylinder are positioned on two sides of the straight cylinder and are arranged in a mirror image manner, and the longitudinal sections of the expansion cylinder and the straight cylinder are semicircles which are gradually reduced towards the straight cylinder; according to the utility model, a progressive protection channel is formed through the flat cable protection mechanism composed of the contraction cylinder, the straight cylinder and the expansion cylinder, the diameter of the inlet end of the contraction cylinder is large, flat cables can enter smoothly, and the semi-arc-shaped raised lines on the inner wall of the straight cylinder are made of elastic rubber materials, so that the frictional wear between the flat cables and the channel is reduced, and the service life of the flat cables is prolonged. And the outlet end of the expansion cylinder is gradually expanded, so that the bending stress of the flat cable is effectively relieved.

The utility model discloses a heat dissipation structure and a heat dissipation battery pack, and relates to the technical field of battery pack heat dissipation, the heat dissipation structure comprises a heat dissipation assembly, the heat dissipation assembly comprises a heat dissipation main body and a heat conduction plate, the heat conduction plate is used for being connected with the battery pack and transmitting heat generated by the battery pack, and the heat dissipation main body is connected with the heat dissipation main body. A heat dissipation cavity is defined by the heat dissipation main body and the heat conduction plate; and the heat conduction plate can transfer heat generated by the battery pack to the heat dissipation cavity. According to the technical scheme provided by the utility model, the problems that in the driving process of the new energy automobile, the battery pack is in a long-term working state, heat accumulation is easily caused, then the battery pack is damaged, and even serious safety accidents such as battery short circuit and fire are possibly caused can be solved.

The utility model relates to the technical field of medicinal plant raw material extraction, especially relates to a low-temperature press of sea buckthorn seed oil. A low-temperature press of sea buckthorn seed oil has a support, a press cylinder, a first servo motor, a spiral oil press roller, an oil storage tank and an arc-shaped heat dissipation fin group, the press cylinder is installed at the top of the support, the right side of the press cylinder is provided with the first servo motor, the output shaft of the first servo motor is fixedly connected with the spiral oil press roller, the space inside the press cylinder and the spiral oil press roller gradually decreases from right to left, the lower part of the press cylinder is fixedly connected with the oil storage tank, and the upper part of the press cylinder is fixedly connected with the arc-shaped heat dissipation fin group in a symmetrical manner around the periphery. The utility model adopts the design that the spiral oil press roller and the internal space of the press cylinder gradually decrease, and is combined with the arc-shaped heat dissipation fin group, so that the oil extraction rate is improved, the effective heat dissipation system is matched to maintain a low-temperature operation environment, the nutritional ingredients in the sea buckthorn seed oil are maximally reserved, and the quality of the product is improved.

According to the effluent pump for the alkylation device, a gap between a throat shaft sleeve and a throat lining, a gap between a first-stage shell wear ring and a first-stage impeller wear ring, a gap between an interstage shaft sleeve and an interstage lining and a gap between a balance shaft sleeve and a balance sleeve are arranged; and gaps between the secondary shell wear ring and the secondary impeller wear ring are modified, so that heat generated by an overflowing part can be dissipated in an accelerated manner, the situation that equipment is damaged due to the fact that a rotating part and the wear rings are heated to expand and stick to each other due to short-time flow insufficiency is effectively avoided, and meanwhile, the service life of the equipment is prolonged. And the situation that equipment is damaged due to local overheating caused by partial flow channel blockage due to too small interstage gaps of large-particle impurities carried in a medium can be avoided.

The utility model discloses a main shaft box structure for lathe main shaft cooling, main shaft box body, the axle cavity on main shaft box body is connected through bearing with main shaft, the inner peripheral wall of axle cavity is equipped with medium flow structure, and the beginning of medium flow structure is communicated with at least one medium import end that is equipped with on main shaft box body, and the end is communicated with at least one medium export end that is equipped with on main shaft box body. The utility model can adopt the mode of oil cooling or water cooling, and the heat of main shaft is accelerated to radiate, and better heat dissipation effect can be played together with air cooling. The main shaft box body adopts symmetrical structure, and the structure is simple, and the commonality is strong, and the problem of uneven temperature distribution when temperature rise is solved to a certain extent, thereby reducing the thermal deformation of main shaft.

This invention discloses a protective garment for epicondylitis of the humerus based on an antibacterial and thermally conductive composite material, belonging to the field of medical protective gear technology. It includes a forearm support and an upper arm support, which are rotatably connected by an adjusting mechanism. The upper arm and forearm sleeves are 3D printed using an antibacterial and thermally conductive composite material, which comprises a polylactic acid matrix, a graphene oxide-silver nanoparticle-carbon nanotube ternary composite filler, and phase change microcapsules, with a thermal conductivity of 1.5-4.0 W·m. ‑1 ·K ‑1 With an antibacterial rate of ≥95%, it solves the problems of poor thermal conductivity, lack of antibacterial properties, and uneven heat therapy in existing protective gear.

The invention discloses a transformer capable of reducing loss, and relates to the technical field of transformers, the transformer comprises a shell and an adjusting assembly, a guide plate is arranged at the upper part in the shell, a housing is arranged in the middle of the guide plate, the adjusting assembly is arranged at the inner side of the housing, the adjusting assembly comprises a shaft rod, and the shaft rod is arranged at the inner side of the housing; an adjusting cavity is formed in the lower portion of the shaft rod. When the device is used, the device can be automatically adjusted according to the temperature change in the transformer, so that when the temperature rises, the circulating flowing speed of oil liquid is increased, heat dissipation is accelerated, the heat dissipation efficiency of the device is positively correlated to be matched with the temperature change of the device, it is guaranteed that the device can dissipate heat in time, and the service life of the device is prolonged. According to the device, the temperature of the oil liquid is increased, additional loss increase caused by too high temperature is avoided, oil sludge mingled in the oil liquid can be separated and removed when the oil liquid is circulated, and the situation that the oil sludge adheres to the device, the heat dissipation performance of the device is reduced or the additional loss of the device is increased is avoided.

The utility model relates to the technical field of analysis and detection, and discloses environment-friendly odor-removing gel odor release detection equipment which comprises a protective shell, a base plate is fixedly connected to the inner wall of the bottom end of the protective shell, a power shaft is rotatably connected to the inner wall of the bottom end of the base plate, and a connecting column is rotatably connected to the interior of the power shaft. Two limiting blocks are fixedly connected to the exterior of the power shaft, rotating shafts are rotatably connected to the interiors of the close sides of the two limiting blocks, a supporting strip is fixedly connected to the exterior of each rotating shaft, a first supporting column is fixedly connected to the top of the rear end of each supporting strip, and a limiting disc is fixedly connected to the top end of each first supporting column; and an ejector rod is fixedly connected to the interior of the front side of the supporting strip, and a first rotating wheel is fixedly connected to the bottom end of the ejector rod. According to the utility model, the problem of long detection and analysis time caused by slow gas release in use of environment-friendly odor-removing gel odor release detection equipment is effectively solved.

The utility model discloses a high-power charging power supply, which comprises a shell, a PCB (Printed Circuit Board), an AC (Alternating Current) connecting line, a CAN (Controller Area Network) communication line and a battery connecting line, the shell is provided with a containing cavity, and a plurality of heat dissipation fins are arranged on the top face of the shell. The PCB is arranged in the containing cavity, and the AC connecting line, the CAN communication line and the battery connecting line are all arranged on the shell and connected with the PCB. The heat dissipation fins are arranged on the top surface of the shell, so that the heat dissipation area of the shell is increased, heat generated by the charging power supply can be quickly dissipated to the outside, the internal temperature of the charging power supply during charging is effectively reduced, internal electronic elements are effectively protected, and the service life of the charging power supply is effectively prolonged.

The invention relates to a rotor iron core part and an assembling device thereof, and relates to the technical field of rotor iron cores, and the rotor iron core part comprises a rotor part and a stator iron core. The assembling device comprises a base, a supporting column, a working platform, a stamping die, a positioning mechanism, a middle cylinder, a rotating part, a position correcting mechanism, a limiting pressing mechanism, an extruding mechanism, a supporting electric push rod, a sliding column and a supporting mechanism. The rotation stability of the subsequent rotor is easily influenced by the higher temperature, the magnetic conduction effect of the iron core is also easily influenced by the high temperature of the rotor, and the iron core is easily deformed due to the high temperature; and lamination of the existing stator iron core mostly depends on welding or bolt fixation, the process is complex, and the integrity of the iron core is easily influenced by assembly errors.

The utility model discloses an adjusting device for sliding contact line connection, which belongs to the technical field of sliding contact lines and comprises a copper head sliding contact line, a steel base is slidably connected in the copper head sliding contact line, adjusting plates are in threaded connection with the middles of the two sides of the steel base through bolts, stress plates are fixedly connected with the bottom ends of the two sides of the steel base, and the stress plates are in threaded connection with the steel base through bolts. A mounting groove is formed in the middle of one side of the stress plate, and a heat dissipation assembly is fixedly connected to the position, located on the edge of the mounting groove, of one side of the stress plate. Through the arrangement of the steel base, the adjusting plate and the bolt, a gap is reserved between the adjusting plate and the steel base so as to adapt to the deformation of the copper head sliding contact wire, so that the copper head sliding contact wire always has good contact, and the phenomena that resistance is increased, the power transmission efficiency is reduced, sparks and even safety accidents are caused, and the production stability and safety are influenced are avoided; the dustproof net can prevent dust from affecting normal operation of the induced draft fan, and the induced draft fan can accelerate heat dissipation of the surface of the copper head sliding contact line.

The utility model relates to vacuum ion coating pretreatment equipment technical field, especially vacuum ion coating pretreatment equipment, including device body, device body is provided with connecting mechanism, connecting mechanism contains setting exhaust component on device body upper section, device body lower section is provided with connecting component, device body middle section is provided with cooling assembly. Cooling assembly through the combination of cooling fan and cooling fin, can quickly send away the heat generated by equipment operation, effectively reduce the device body internal temperature, the fixed connection of slide holder and exhaust hood can move with exhaust hood, slide on the fixed slide rod, realize the flexible heat dissipation to device different area. The cooperation of collocation fixed rod, limit spring and L shape frame guarantees the stability when heat dissipation part moves, avoids the influence equipment performance and workpiece pretreatment effect because of temperature is too high, prolongs equipment life, guarantees the continuous and stable development of pretreatment work.

This utility model discloses an anti-slip double-row tapered roller bearing, comprising an outer ring and an inner ring. The outer ring has an internal groove, and a hard alloy layer is laid on the inner surface of the internal groove. A transition layer is laid on the outer surface of the hard alloy layer, and a soft magnetic alloy layer is laid on the outward side of the internal groove. A permanent magnet array is laid on the outer surface of the inner ring, and a cage is laid on the permanent magnet array. A cage pocket is formed on the outer surface of the cage, and a groove is formed inside the cage pocket. This device uses magnetic attraction technology to reinforce the rollers, ensuring that the rollers are tightly fitted with the raceway during high-speed operation, effectively preventing slippage and improving the stability and service life of the bearing.

This utility model discloses an intelligent human-computer interaction terminal, belonging to the field of intelligent terminals. A bottom frame is installed at the lower end of the blackboard, and a front baffle is provided at the front end of the bottom frame. A chalk compartment is formed between the bottom frame and the front baffle. The wall of the chalk compartment is equipped with a cable management conduit, which facilitates the wiring of the terminal. Multiple through slots are opened at the upper end of the bottom frame. The cable management conduit and metal spring clips form channels within the arc-shaped shell, providing an orderly and convenient arrangement and routing path for the wires, avoiding wire clutter and improving the safety and reliability of the layout. The sealed design of the cable management conduit also prevents dust and moisture intrusion, protecting the wires and internal components. The heat dissipation mechanism efficiently conducts heat through heat dissipation fins, heat-conducting blocks, heat-conducting strips, and thermal grease, rapidly dissipating heat from the terminal's heating components. This not only reduces the operating temperature and improves operational stability and service life, but the metal fasteners also ensure the stability and durability of the heat dissipation effect.

The application discloses a kind of high thermal conductivity R-T-B rare earth permanent magnet and preparation method thereof, to R-T-B main alloy is added rich R auxiliary alloy, and high thermal conductivity additive powder is added simultaneously, obtain the magnet material with larger thermal conductivity;The mass ratio of main alloy, auxiliary alloy is 7.5~49:1;High thermal conductivity additive powder mass dosage is 0.1wt.%~5.0wt.% of the total mass of main alloy, auxiliary alloy.The application increases the thermal conductivity of magnet by adding the additive with higher thermal conductivity than R-T-B, accelerates the dissipation of magnet heat, reduces the temperature when magnet is used.Compared with the traditional method of adding insulation phase to improve the resistivity and resistance temperature coefficient of magnet, the application can effectively inhibit the loss of magnetic performance of motor magnet in alternating magnetic field.

The utility model belongs to the technical field of illumination, and relates to an underwater multispectral plant production lamp which comprises a heat dissipation column, a transparent shell, an upper cavity cover and a lower cavity cover, the heat dissipation column is hollow, a light source plate is arranged on the periphery of the heat dissipation column, and threaded connectors are further arranged at the two ends of the heat dissipation column. The transparent shell is arranged outside the heat dissipation column in a sleeving manner; the upper cavity cover and the lower cavity cover are connected to the upper end and the lower end of the heat dissipation column through the threaded connectors respectively, clamping grooves are further formed in the upper cavity cover and the lower cavity cover, and the two ends of the transparent shell are clamped in the clamping grooves of the upper cavity cover and the clamping grooves of the lower cavity cover respectively. According to the underwater lamp, the heat dissipation column is adopted as a core structure, the light source plate is installed on the periphery of the heat dissipation column, and the heat dissipation column enables light emitted by the light source plate to be irradiated at the 360-degree all-dimensional angle. The omnibearing illumination mode can ensure that all parts of underwater plants such as seaweeds in a deep water area can receive light uniformly.

The utility model relates to a kind of aluminium material forming rapid cooling device, belong to aluminium material processing technical field, including: conveying mechanism, for conveying aluminium profile;Water mist spray head, be set in the below of conveying mechanism, for spraying water mist;Air cooling mechanism, including fan, air pipe and air outlet, the air pipe both ends are connected fan and air outlet respectively, the air outlet is located at the side of water mist spray head;Air collection mechanism, set with the above of conveying mechanism;Condensing mechanism, with air collection mechanism is connected, for condensing hot gas.This application can realize the rapid cooling of aluminium profile by combining water mist spray head and air cooling mechanism;The fine water mist sprayed by water mist spray head can quickly absorb the heat on the surface of aluminium profile, while air cooling mechanism further accelerates the emission of heat by the strong wind generated by fan.This double cooling mechanism significantly improves the cooling efficiency, shortens the cooling time of aluminium profile, thereby improves production efficiency.

The utility model relates to a switch with high heat dissipation efficiency, which relates to the technical field of switches, and comprises a switch main body, a cabinet door rotatably connected to the outer end of the switch main body, an air hole dug in the outer end of the switch main body and located on the upper side of the cabinet door, an air outlet hole dug in the right end of the switch main body, and an exhaust fan installed in the air outlet hole. A square annular groove located on the outer side of the air hole is formed in the outer end of the switch body, a filter screen frame is inserted into the square annular groove, a first filter screen is fixedly connected to the inner wall of the filter screen frame, four evenly-distributed storage grooves are formed in the inner bottom end of the square annular groove, and insertion rods fixedly connected with the filter screen frame are inserted into the storage grooves. Springs are fixedly connected between the insertion rods and the bottom ends in the storage grooves, mounting holes are formed in the left end and the right end of the filter screen frame, and baffles are inserted into the mounting holes, so that the surface of the filter screen can be cleaned, the ventilation efficiency of the filter screen is improved, dust entering the switch is reduced, and the heat dissipation efficiency of the switch is improved.

The utility model relates to the field of molds, and discloses an infusion apparatus ejector block core-pulling type mold which comprises a lower mold, a plurality of sliding rods are fixedly connected to the top of the lower mold, sliding plates are slidably connected to the outer sides of the sliding rods, injection molding openings are formed in the sliding plates, and injection molding channels are formed in the sliding plates. A plurality of infusion apparatus upper molds are fixedly connected to the bottom of the sliding plate, a plurality of cavities are formed in the lower mold, heat dissipation assemblies are arranged in the cavities, and an ejection assembly is arranged in the lower mold. According to the automatic demolding device, through mutual cooperation of the motor, the rotating rod, the first bevel gear, the connecting rod, the second bevel gear, the cam, the spring, the ejection frame, the ejection block and other structures, automatic and efficient demolding is achieved, and compared with a traditional manual demolding mode, the production efficiency is greatly improved, and the production period is shortened.

The utility model relates to the field of motors, and discloses an optimized cooling structure of a dry-type installation submersible motor, which can improve the cooling efficiency of the dry-type installation submersible motor and solve the problem that the temperature rise of a motor bearing is too fast. Comprising a pump body, a stator, a rotor, a motor shell, a cooling jacket, a wire holder, a connecting seat and a pump cover. The end of the rotor shaft sequentially penetrates through the connecting base and the pump cover to be connected to the pump body, the stator surrounds the outer side of the rotor, the motor shell surrounds the outer side of the stator, and the two ends of the motor shell are in sealed connection with the wire holder and the connecting base respectively to form a first sealed cavity in the motor shell. The cooling jacket is sleeved outside the motor shell, and two ends of the cooling jacket are respectively connected with the wire holder and the connecting seat in a sealing manner, so that a second closed cavity is formed between the cooling jacket and the motor shell. The second end side of the rotor is provided with an axial-flow fan blade, the axial-flow fan blade rotates around the axis of the bearing to form airflow, the airflow flows to the first end side of the rotor from the second end side of the rotor and then flows back to the second end side to form circular flow, and heat exchange is conducted in the process that the airflow flows back to the second end side from the first end side.

The environment-friendly and renewable decorative plate raw material crushing device relates to the technical field of crushers and comprises a base assembly, which is composed of a first support and a second support. A crushing assembly is installed above the first support, a circulating water pump is integrated in the second support, a crushing cavity is arranged in the crushing assembly, a rotating shaft penetrates through the crushing cavity and is provided with multiple groups of moving knives and circumferentially distributed crushing blade heat dissipation systems comprising first and second heat dissipation pipes, which form a closed-loop water circuit through the circulating water pump and adopt a spiral layout to increase the heat exchange area. An air inlet and a first fan are arranged at the top of the crushing cavity, and a second fan is arranged on the rear baffle to reduce the temperature of the cavity through forced convection. A heat dissipation cavity is arranged in the first support, and external copper-aluminum composite heat dissipation fins are arranged to accelerate heat diffusion. The device effectively controls the temperature of the crushing cavity through water cooling and air cooling, high-temperature-resistant cutter design and modular structure, avoids the softening and caking of PVC materials, and improves the operation safety and maintenance efficiency.

The utility model relates to the technical field of circuit boards, and discloses a circuit board wiring structure which comprises an insulating substrate, the top of the insulating substrate is fixedly connected with an insulating plate, the top of the insulating plate is fixedly connected with a conductive plate, and a plurality of positioning holes are formed in the insulating substrate, the insulating plate and the conductive plate in a penetrating mode. And heat conduction columns are slidably connected into the multiple positioning holes, heat conduction plates are fixedly connected to the tops of the multiple heat conduction columns, an S-shaped heat dissipation pipe is fixedly connected into the insulating base plate, the left end of the S-shaped heat dissipation pipe communicates with a heat dissipation liquid box, and a filling opening is fixedly connected to the top of the heat dissipation liquid box. According to the utility model, good heat dissipation performance is realized, the temperature of the current-conducting plate and internal electronic components is effectively reduced, the performance reduction or damage of the components caused by overheating is avoided, the service life of the electronic components is prolonged, and stable operation of the circuit board and long-term use of the components of the circuit board are ensured.

This utility model discloses an explosion-proof pressure relief protection device for a chemical hazardous materials storage tank, relating to the field of pressure relief technology. The device includes a liquefied petroleum gas (LPG) storage tank. A valve seat is welded to the top of the LPG storage tank, and a tee pipe is threaded onto the valve seat. A pressure relief and cooling structure is located on the LPG storage tank and includes a cooling pipe, a control valve, a pressure relief pipe, and multiple heat dissipation fins. During emergency pressure relief, high-pressure gas first flows through the cooling pipe. Multiple heat dissipation fins fixedly fitted to the outer surface of the cooling pipe quickly absorb the heat transferred from the high-temperature gas inside the pipe. Compared to the single-wall heat dissipation of ordinary straight pipes, the heat dissipation area is significantly increased, enhancing air convection and further accelerating heat dissipation. This causes the temperature of the high-temperature gas inside the cooling pipe to drop rapidly, preventing prolonged exposure of the cooling pipe wall to high temperatures, effectively slowing down the aging rate of the cooling pipe and extending its service life.

The utility model relates to the technical field of vehicle-mounted radars, and particularly discloses a vehicle-mounted radar waveguide antenna structure, which comprises a vehicle-mounted radar mechanism, an anti-collision mechanism assembled at the front end of the vehicle-mounted radar mechanism, and a waveguide antenna mechanism assembled inside the vehicle-mounted radar mechanism, the vehicle-mounted radar mechanism comprises a first shell, a second shell is fixedly mounted at the front end of the first shell, and a heat dissipation plate is clamped and fixed between the first shell and the second shell; a mounting seat is fixedly mounted in the first shell; the anti-collision mechanism comprises an anti-collision plate slidably mounted at the front end of the second shell; according to the utility model, heat accumulated inside can be directly led out through the frame position, heat accumulation inside the first shell and the second shell is effectively relieved, the waveguide antenna body can be in a proper operation environment, the signal transmission effect of the waveguide antenna is prevented from being influenced, and more convenience is brought to use.

The utility model relates to the field of rasping machines, and discloses a novel rasping machine saw blade which comprises a saw blade seat installed on a rasping machine, a saw blade body is installed on the saw blade seat through a detachable structure, saw teeth are arranged at the bottom of the saw blade body, and the saw teeth are arranged to be variable in tooth pitch. A wear-resistant coating is arranged on the surface of the saw blade body, a plurality of heat dissipation grooves are formed in the saw blade body in the length direction, and the heat dissipation grooves are in a wave shape. A mounting hole is formed in the saw blade seat, a mounting rod is mounted on the inner wall of the rear side of the mounting hole, a mounting hole matched with the mounting rod is formed in the saw blade body, the tooth pitches of the saw teeth are sequentially increased from left to right, and the tooth pitches of the saw teeth are sequentially increased from 8 mm to 12 mm from left to right. The saw blade has the following advantages and effects that efficient and accurate saw cutting, good heat dissipation, wear resistance, durability and convenient disassembly and assembly are achieved through the variable-tooth-pitch sawteeth, the wavy heat dissipation grooves, the wear-resistant coating and the convenient detachable structure, and the machining quality and efficiency are improved.

The utility model relates to an ultrathin flexible silica gel heat-conducting gasket which comprises a silica gel heat-conducting gasket body, a first protective film is arranged at the top of the silica gel heat-conducting gasket body, a second protective film is arranged at the bottom of the silica gel heat-conducting gasket body, and hand tearing blocks are arranged at one end of the first protective film and one end of the second protective film. The main body of the silica gel heat-conducting gasket is formed by compositing a plurality of layers of structures, the contact layer has high heat conductivity and can quickly conduct heat and achieve efficient heat dissipation, the heat-conducting layer can accelerate transverse heat conduction, and the micropores and the protrusions on the heat dissipation enhancement layer can promote air circulation and prevent heat from being accumulated on the surface. The contact area with external air or heat dissipation media is increased, heat can be dissipated to the surrounding environment more quickly, and the heat dissipation speed is increased.

The utility model provides a heat dissipation type diamond roller. The heat dissipation type diamond roller comprises a roller body and a heat dissipation assembly. The roller body comprises a base body of an annular column structure, a grinding part of an annular structure, a diamond particle layer arranged on the annular outer surface of the grinding part and a mounting annular plate connecting the base body and the grinding part, wherein the grinding part and the base body are coaxially arranged. A heat dissipation cavity is defined by the inner end face of the mounting ring plate, the outer side wall of the base body and the inner side wall of the grinding part, and a plurality of ventilation holes communicating with the heat dissipation cavity are formed in the mounting ring plate; the heat dissipation assembly is installed in the heat dissipation cavity and comprises a first side annular plate attached to the inner ring side wall of the grinding part, a second side annular plate attached to the outer side wall of the base body and located in the heat dissipation cavity area, and annular fan blades arranged on the first side annular plate and the second side annular plate in a covering mode. And a spiral flow deflector which is spirally arranged in the axial direction is arranged on the inner side wall of the first side annular plate. According to the heat dissipation type diamond roller, the heat dissipation assembly is arranged in the roller, the heat dissipation efficiency of the diamond roller can be effectively improved, and the service life of the roller is prolonged.

The utility model relates to the technical field of LED street lamps, in particular to an efficient heat dissipation LED street lamp shell which comprises a shell body, a top cover, a gasket and a flow guide assembly. The top cover is mounted at the top end of the shell and is integrally arranged with the shell, and a heat dissipation assembly which extends towards the inner side of the shell and transmits heat of the inner side of the shell to the upper part of the top cover for heat dissipation is arranged at the top end of the top cover; the flow guide assembly is installed at the top end of the top cover and located above the heat dissipation assembly. The gasket is installed at the top end of the top cover and located on the edge of the bottom end of the heat dissipation assembly. The heat dissipation assembly extends into the shell from the top end of the top cover and makes direct contact with a heat source, heat is transmitted to the outer side of the top cover, the heat dissipation assembly makes contact with outside air for heat exchange, the air channel is formed between the flow guide assembly and the top cover, natural wind moves along the outer surface of the top cover through the heat dissipation assembly, and the heat dissipation efficiency is improved. And heat dissipation of the heat dissipation assembly is accelerated, so that the heat dissipation efficiency is remarkably improved.

The utility model discloses a frequency converter mounting base height adjusting and supporting device, which relates to the technical field of frequency converter bases, and comprises a base body, two groups of accommodating grooves are formed in the base body, supporting plates are inserted into the two groups of accommodating grooves, and the front end and the rear end of each supporting plate are respectively and fixedly connected with a mounting block. According to the utility model, through the arrangement of the supporting plate and the accommodating groove, the height of the base body can be adjusted during use through the mutual cooperation of the accommodating groove and the supporting plate in the use process, so that an air convection channel is formed, heat is accelerated to be dissipated to the outside, and overload protection or device aging caused by too high temperature is prevented; by arranging the hole plate and the clamping block, in the using process, through the arrangement of the hole plate, the supporting area of the frequency converter can be increased, and therefore the downward pressing force of the frequency converter can be effectively dispersed, local stress concentration is reduced, the risks of base deformation and damage are reduced, and the service life of the frequency converter is prolonged.