142results about How to "Increase heat conduction area" patented technology

The present application provides a pole, a terminal assembly and a battery, the pole comprising: a base having a first surface; the column body is arranged on the first surface and provided with a second surface deviating from the base, and a heat conduction groove is formed in the second surface and filled with a heat conduction material. The heat conduction groove is formed in the second surface, deviating from the base, of the post body of the post, and the heat conduction groove is filled with the heat conduction material, so that heat dissipation of the post can be accelerated, heat accumulation of the post is avoided, and the risk of thermal runaway of the battery is reduced.

The utility model discloses a lava lamp which comprises a base, a light source, a wax bottle and a PTC (Positive Temperature Coefficient) constant-temperature heating sheet at the bottom of the wax bottle. Wherein the light source is installed in the base and emits light towards the wax bottle, the PTC constant-temperature heating piece is installed at the bottom of the wax bottle and used for heating the wax bottle, constant-temperature heating is achieved, and it is guaranteed that the lava lamp generates the stable floating effect. The slow and flowing wax effect and the soft light of the lava lamp can help create a quiet and relaxed environment, and the artistic sense of the environment is increased.

The invention relates to the field of laser equipment, and discloses a three-dimensional graphene structure heat dissipation lath amplifier, which comprises a base, a shading cover plate covering the base, and a lens and a light-transmitting panel arranged in the base, the lower end of the inner side of the base is communicated downwards through a plurality of air ports, the air ports are arranged in an inclined manner, and the light-transmitting panel is arranged on the shading cover plate. The lens comprises a supporting shell, a lens body and a heat conduction component, the supporting shell is arranged outside the lens body in a sleeving mode, the inclined arrangement of an air opening and the size difference of end openings increase the speed of air flowing, the uniformity of air flowing is improved, when an air compressor is started, the air opening can rapidly introduce cold air into the base, the cold air exchanges with hot air in the base, and therefore the heat conduction performance of the air compressor is improved. By means of the design, the temperature in the base is effectively reduced, and performance reduction and damage caused by long-time high-temperature work of the laser amplifier are avoided.

The invention discloses a demolding device convenient to convey and used for a metal casting mold and a using method of the demolding device, and belongs to the technical field of metal casting molds. Two mold bases are far away from each other, so that a gear can be meshed with teeth in the moving process, the gear drives a plurality of cams to rotate through a connecting shaft, and the protruding ends of the cams can extrude a blocking cover in the rotating process of the cams; when the protruding end of the cam is separated from the blocking cover, the connecting plate can be driven by the pulling force of the springs to get close to the die holder, the knocking strips can rapidly return and knock the die holder, the die holder vibrates, and along with continuous rotation of the cam, the connecting plate can drive the knocking strips to continuously knock the die holder. And in the process that the knocking strip knocks the mold base, generated vibration is transmitted to the whole mold cavity in the mold base, so that the casting in the mold cavity is stressed uniformly, the casting is not prone to deformation or abrasion, and the quality of a casting product is guaranteed.

The invention relates to the technical field of motors, and particularly discloses a dual-redundancy servo motor which comprises a shell, and the interior of the shell is hollow. The driving mechanism comprises a permanent magnet alternating current servo motor and a transmission shaft, the permanent magnet alternating current servo motor comprises a stator and a rotor, and the stator drives the transmission shaft to rotate; the two brushless resolver engines are arranged adjacent to the transmission shaft, the two brushless resolver engines are both provided with resolver parts, and the resolver parts are connected with two annular resolver parts arranged at the two ends of the interior of the shell; the heat dissipation mechanism comprises a heat dissipation annular plate, a heat dissipation spiral pipe and a peristaltic pump; the servo motor overcomes the defects that in the prior art, the temperature control of the servo motor is poor, and the utilization rate of the internal space is low.

The utility model relates to the technical field of sensors, and discloses a temperature sensor, which comprises a base and a mounting end at the front end of the base, a cavity is formed in the mounting end, a probe is fixedly arranged at the lower end of the cavity through a hollow support, the upper end of the probe extends into the cavity, and the lower end of the probe extends out of the hollow support. On the premise that the length of the sensor is not increased, a medium space is formed outside the probe, so that the probe is in full contact with a measured medium, the effective heat transfer of the measured medium is increased, and the probe can fully and quickly respond to the temperature change of the medium.

The invention discloses a display device and a manufacturing method thereof, the display device comprises a driving backboard and a plurality of display units located on the driving backboard, and each display unit comprises a carrier plate; the carrier plate comprises a plurality of bonding pads; at least two light-emitting chips, wherein the colors of emergent light of the light-emitting chips are different; one light-emitting chip is positioned on one bonding pad and is electrically connected with the bonding pad; the common electrode is positioned on one bonding pad and is electrically connected with the bonding pad; the side, away from the carrier plate, of each light-emitting chip is connected to the common electrode. The light-emitting chip in the display unit is of a vertical structure, the light-emitting area proportion is higher, a smaller chip can be used under the same brightness requirement, and the chip cost is reduced. Only one electrode is arranged at the bottom of the light-emitting chip, and the size of the electrode is the same as that of the light-emitting chip, so that a series of risks such as short circuit and metal migration caused by too small electrode distance are reduced. The light-emitting chip adopting the vertical structure is larger in heat conduction area and lower in thermal resistance.

The utility model relates to the technical field of curling iron, in particular to a curling iron head structure which comprises a front cover, a heat conduction piece, a rear cover, a heating piece and comb teeth, the heat conduction piece is exposed and fixed between the front cover and the rear cover, a containing cavity is formed among the front cover, the heat conduction piece and the rear cover, an inner support is arranged in the containing cavity, and the heating piece is arranged between the inner support and the heat conduction piece. The comb teeth are connected with the inner support in a clamping mode after penetrating through the heat conduction piece. According to the arrangement, the heat conduction piece is integrally exposed and fixed between the front cover and the rear cover, then the inner support and the heating piece are arranged in the containing cavity, the heating piece is located between the inner support and the heat conduction piece, finally the comb teeth penetrate through the heat conduction piece to be connected with the inner support in a clamping mode, the heat conduction piece is exposed, the heat conduction area is larger, and the heat conduction efficiency is higher; the hair planting mode of the comb teeth is changed from an inner hair planting mode to an outer hair planting mode, the comb teeth are assembled from the outside of the heat conduction piece to be fixed to the inner support, the inner space of the head of the curling iron is increased, and therefore more space is provided for containing heating pieces, and the heating area is increased.

The invention discloses an electric local anesthetic injection device and relates to the technical field of medical instruments, a fixed sliding rail is mounted at the top of a rotating flat head, fixed sliding blocks are slidably mounted at two ends in the fixed sliding rail, a bidirectional screw is rotatably mounted in the fixed sliding rail, a clamping plate is connected to the top of each fixed sliding block, and a handle is clamped in the middle of the clamping plate; a limiting sliding groove is formed in one end of the top of the handle, a fixing frame is installed at the other end of the top of the handle, a heat preservation electric heating plate is installed at the bottom of the fixing frame, and an injector is placed at the top of the fixing frame. The labor intensity of anesthetists is greatly reduced, when intramuscular injection is carried out on a patient, a needle head can be rapidly positioned, injection is convenient and fast, electric quantitative injection can also be carried out, two operation modes are adopted, and the anesthetic syringe is suitable for being used under different conditions, more comprehensive and reasonable in operation and suitable for being used and popularized.

The invention discloses a sea water desalination device capable of comprehensively utilizing ocean energy, and relates to the technical field of sea water desalination. The bottom of a connecting frame is connected with a condensation cover, the bottom of the condensation cover is connected with a U-shaped groove, the output end of an adjusting motor is connected to one end of the bottom of a supporting plate, and one end of the top of the supporting plate is connected with a reflection focus lens through a universal joint; by controlling the adjusting motor and the adjusting electric push rod to be matched with the universal joint and the rotating seat, multi-angle adjustment of the reflecting focus lens is achieved, the adjusting motor and the adjusting electric push rod are matched with the universal joint and the rotating seat, and the adjusting motor and the adjusting electric push rod are matched with the universal joint and the rotating seat to adjust the reflecting focus lens. The stirring motor drives the stirring rod and the scraping rod to stir seawater in the evaporation boiler, so that separated crystal salt is prevented from covering the water surface and hindering evaporation of water, the operation stability of the device is ensured, and the fresh water preparation speed is increased.

The utility model discloses a smelting furnace's water-cooling flue structure, including water-cooling pipe layer and shell, the inner side of water-cooling pipe layer is fixed with heat conduction pipe, and the heat conduction pipe and water-cooling pipe layer are welded and fixed, there are a plurality of heat conduction pipe, and the outer wall of heat conduction pipe is fixed with first heat conduction fin, the tail end of heat conduction pipe is fixed with second heat conduction fin, and the second heat conduction fin is fixed with the water-cooling pipe layer. And the second heat conduction piece and the heat conduction pipe are fixed in a welded mode, the shell is fixed to the outer portion of the water cooling pipe layer, and a sintering layer is fixed to the inner wall of the heat conduction pipe. Compared with an existing water-cooling flue structure, the water-cooling flue structure of the smelting furnace is provided with the efficient heat conduction mechanism, the heat conduction area of the device is effectively increased, the device can fully absorb heat of flue gas, the water-cooling effect and the waste heat utilization rate of the device can be improved, meanwhile, the device is provided with the anti-corrosion coating structure, and the service life of the device is prolonged. The device can be effectively prevented from being corroded by flue gas, and the abrasion of the device is reduced, so that the service life of the device is prolonged.

The application provides a heating and heat preservation device and a mobile modified rubber asphalt production equipment, and relates to the technical field of asphalt production and heat preservation. The heating and heat preservation device comprises a storage tank and a turnover heat conduction mechanism. A pipe rod is arranged through the axis of the storage tank and rotates, a rotating drive assembly is installed on the driving end shaft of the end of the storage tank and rotates. An oil inlet assembly is rotatably and communicatively arranged with a front pipe cylinder, an oil return assembly is rotatably and communicatively arranged with a rear pipe cylinder, a front coil pipe is symmetrically arranged on both sides of a front shaft, and a rear coil pipe is symmetrically arranged on both sides of a rear shaft. The front coil pipe and the rear coil pipe are arranged in the middle of the storage tank, the rotated front coil pipe and the rear coil pipe further increase the heat conduction area, the front coil pipe and the rear coil pipe can stir the asphalt oil in the storage tank, the heated asphalt oil in the storage tank is more uniform, the uniformity of the rubber powder and the asphalt oil in the storage tank is improved, and the deposition of the rubber powder is reduced.

The invention relates to the technical field of armored heating cables, and provides a high-stability armored heating cable which comprises a heating wire and an insulating sleeve which is arranged outside the heating wire and forms an insulating wire core. When the positioning sleeve absorbs heat, heat energy can be guided into the heat storage cavity through the heat conduction rod, so that the expansion material is promoted to expand, the plug plate is pushed to enable cooling liquid to flow to the water flow groove for cooling, and the armored heating cable is prevented from losing efficacy at the extreme temperature; through the spiral water flow grooves, the contact area of cooling liquid and the positioning sleeve can be increased, turbulent flow is increased, the flowing uniformity is improved, and the heat exchange efficiency is improved; the temperature is reduced through the heat absorption dissolution reaction, the spare inner balloon is further arranged in the fractured micro balloon, and the cooling effect continues to be provided or the same time double cooling effect is achieved when the temperature rises next time; the insulating wire cores can be stabilized, the overall structural stability of the cable is improved, meanwhile, the excellent heat conduction performance is provided, and the stability and safety of the electrical performance are ensured.

The utility model discloses a novel new energy battery cell flame-retardant sheet which comprises a heat insulation layer, the two flame-retardant layers are fixedly connected to the two sides of the heat insulation layer respectively; the two phase change layers are fixedly connected to the sides, away from each other, of the two flame-retardant layers respectively, each phase change layer comprises a first heat conduction plate, one side of each first heat conduction plate is fixedly connected with the corresponding flame-retardant layer, the other side of each first heat conduction plate is provided with a containing groove, and the containing grooves are filled with phase change microcapsules; and the second heat conducting plate is fixedly connected to the side, provided with the containing groove, of the first heat conducting plate. The utility model can prevent thermal runaway and restrain flame spread.

The present invention relates to the field of laser equipment, and discloses a slat amplifier, comprising a base, a shading cover plate arranged on the base, and a lens and a light-transmitting panel arranged in the base. The lower end of the inner side of the base is downwardly connected through a plurality of air ports, and the air ports are arranged at an angle. The lens comprises a supporting shell, a lens, and a heat-conducting component, and the supporting shell is sleeved outside the lens. The inclined arrangement of the air ports and the difference in port sizes not only increase the air flow rate, but also improve the uniformity of the air flow. When the air compressor is started, the air ports can quickly introduce cold air into the interior of the base, exchange with the hot air inside, and discharge it through heat dissipation port 2. This design effectively reduces the temperature inside the base and avoids the performance degradation and damage of the laser amplifier caused by long-term high-temperature operation.

The invention relates to the technical field of waste heat utilization, in particular to a hazardous waste incineration waste heat power generation system which comprises a shell, an air bag and a power generation unit and further comprises a drainage pipe, a water pump, a lower flow pipe, a flow guide pipe, an upper flow pipe, a heat exchange pipe, a flow adjusting assembly and a constant pressure assembly. The lower flow pipe is connected to the other end of the drainage pipe, the flow guide pipe array is connected to the lower side of the air bag, the multiple upper flow pipes are connected with the multiple flow guide pipes correspondingly, the heat exchange pipe array is connected to the lower sides of the upper flow pipes, the flow adjusting assembly is connected with the heat exchange pipes, and the constant pressure assembly is connected with the flow adjusting assembly. A water inlet is formed in the lower side of the heat exchange pipe, a water outlet is formed in the upper side of the heat exchange pipe, the flow of water flow at the water inlet and the water outlet in the heat exchange pipe is changed, then the pipeline is twisted within a limited range, and then the purpose of removing acidic condensate water is achieved.

The utility model discloses a cosmetic plastic bottle blow molding full-automatic assembly line which comprises a cosmetic plastic bottle blow molding full-automatic assembly line base, and an automatic heating assembly, an automatic blow molding device and an automatic cooling assembly are arranged at the top end of the cosmetic plastic bottle blow molding full-automatic assembly line base. The distance between the mounting frame and the bottom adaptive cavity can be quickly adjusted according to the height parameter of the cosmetic plastic bottle needing to be processed, so that the height parameter of the positioning cavity is adjusted to be matched with the height parameter of the cosmetic plastic bottle needing to be processed, and when particle materials are clamped and conveyed, the height parameter of the positioning cavity is adjusted to be matched with the height parameter of the cosmetic plastic bottle needing to be processed. By extruding the wrapping balloons on the two sides, the wrapping balloons deform and wrap the outer wall of the top end of the granular material, potential energy is released in a self-adaptive mode through reset springs, then the clamping effect is improved, meanwhile, silica gel protruding blocks arranged in the wrapping balloons are extruded, and the clamping effect is further improved.

The utility model relates to the field of decoders, and discloses a high-definition decoder, which comprises a decoder shell, a bottom heat-conducting plate arranged at the bottom of the inner side of the decoder shell, supporting legs respectively arranged at four corners above the bottom heat-conducting plate, an upper heat-conducting plate arranged on the plurality of supporting legs, a circuit substrate arranged above the upper heat-conducting plate, and an upper heat-conducting plate arranged above the circuit substrate. The circuit substrate is electrically connected with a decoder element, heat dissipation grooves are formed in the left side and the right side of the decoder shell respectively, a heat dissipation assembly is arranged on the bottom heat conduction plate, an annular groove is formed in the upper portion of the decoder shell, a heat dissipation hole plate is connected in the annular groove in a sliding mode, a decoder shell cover is arranged on the upper portion of the heat dissipation hole plate, and a heat removal assembly is arranged on the decoder shell cover. The heat dissipation assembly comprises a micro heat dissipation fan arranged on the inner side of the left heat dissipation groove, a connecting groove pipe is arranged on the right side of the micro heat dissipation fan, a square groove is formed in the upper portion of the connecting groove pipe, a guide frame is arranged on the connecting groove pipe, and efficient heat dissipation treatment can be conducted on the high-definition decoder.

The utility model provides a kind of laser range finder suitable for near-earth orbit environment, it is related to laser ranging technical field.It includes transmitting and receiving component, circuit bin, circuit component, the rear side of transmitting and receiving component is plane and with external fixed equipment detachably connected, circuit bin is connected with transmitting and receiving component, circuit component is connected in the inside of circuit bin and with transmitting and receiving component electricity is connected, the inside of circuit bin can form enclosed space.Circuit bin inside formed enclosed space, can limit the propagation of radiation, high-energy particles need to pass through the cover of circuit bin to reach sensitive device, effectively reduce the influence of high-energy particles on circuit.The plane of the rear side of transmitting and receiving component can form sufficient contact with external fixed equipment, increase the heat transfer area, the heat inside laser range finder can be transferred to outside in time, so that structure layout is more reasonable, increase overall heat dissipation efficiency, effectively solve the heat dissipation problem under vacuum environment.

The utility model discloses a mattress which comprises a refrigerating assembly, and the refrigerating assembly comprises a refrigerating device, a heating device and a heating device, the radiating part comprises a plurality of radiating fins which are arranged in sequence; the number of the heat conduction parts is one or more, through holes corresponding to the heat conduction parts are formed in the cooling fins respectively, all the through holes corresponding to the same heat conduction part are coaxially formed, one end of each heat conduction part is fixed to the hot end of the refrigeration device, and the other end of each heat conduction part penetrates through the corresponding through hole and is fixed to the corresponding cooling fin. According to the refrigeration assembly, the heat conduction part is arranged to conduct heat generated by the refrigeration device to the heat dissipation part, heat dissipation is conducted through the heat dissipation part, on one hand, the heat dissipation device can be arranged away from the refrigeration device, the situation that the dissipated heat influences refrigeration of the refrigeration device is avoided, and the refrigeration effect is guaranteed. On the other hand, the heat conduction part is arranged to conduct heat, the heat conduction area is increased, the conduction effect is improved, and the heat dissipation effect is improved.

The utility model relates to dimethyl silicone oil production and processing technical field especially relates to a dimethyl silicone oil mixed type reation kettle with heat exchange function. Including reation kettle body and first sealing plate, the first sealing plate top is fixedly arranged with push rod motor, the output of push rod motor is through first sealing plate, and the output bottom fixedly connected with electric heating bin, and electric heating bin bottom is fixedly arranged with second sealing plate, the electric heating bin is built -in and is through second sealing plate's thermocouple, and thermocouple bottom side fixedly connected multiple heat conduction bin body, the heat conduction bin body is built -in and has heating fluid. The utility model solves the technical problem that is: in dimethyl silicone oil production procedure, heat exchange efficiency is limited, and product quality is influenced.

The application relates to a heat dissipation device with a heat recovery function and an electronic device, wherein the heat dissipation device with the heat recovery function comprises a heat conduction box body with a first heat conduction box wall and a second heat conduction box wall; a thermoelectric conversion structure comprises a first thermoelectric conversion assembly arranged in the heat conduction box body, the first thermoelectric conversion assembly comprises at least one first thermoelectric conversion sheet, each first thermoelectric conversion sheet has a first cold surface and a first hot surface arranged oppositely, the first hot surface is attached to the inner surface of the first heat conduction box wall, and the first cold surface is adapted to indirectly contact the inner surface of the second heat conduction box wall; a heat dissipation assembly comprises a first heat dissipation fin, a substrate and a first heat conduction pipe group, the substrate is arranged between a heat source of the electronic device and the first heat conduction box wall, and two oppositely arranged surfaces are directly in contact with the heat source and the first heat conduction box wall respectively; the heat conduction box body is arranged between the first heat dissipation fin and the substrate, and the substrate is connected with the first heat dissipation fin through the first heat conduction pipe group; and the thermoelectric conversion effect and the heat dissipation efficiency are both high.

The utility model discloses a novel cooler, which is characterized by comprising a back plate and at least one cooling water pipe, the cooling water pipe is formed by bending a pipe body, two ends of the cooling water pipe are respectively provided with a first water inlet and a first water outlet, and each cooling water pipe is connected with the back plate; a plurality of anchoring parts are arranged on the outer wall of the cooling water pipe, and the inner end of each anchoring part is connected with the outer wall of the cooling water pipe. The novel cooler is good in cooling effect and low in manufacturing cost.

The utility model discloses an intelligent heating desk without electromagnetic radiation, relates to the technical field of desks, and aims to solve the problems that when an existing desk is used in a poor and cold area, heat supply operation cannot be carried out, the function and the structure are single, and the use comfort of students is insufficient. According to the technical scheme, the desk is characterized by comprising a desk support, a storage box is fixedly installed at the upper end of the inner side of the desk support, a desk plate is fixedly installed on the upper surface of the storage box, a mounting groove is formed in the upper surface of the desk plate, and a plurality of insulating seats are fixedly installed on the inner end face of the mounting groove; an electric heating quartz tube is fixedly installed between every two adjacent insulating seats, a metal table plate is installed at the upper end opening of each installation groove, each insulating seat comprises a ceramic seat, and an installation through groove is formed in the side surface of each ceramic seat. And the effects that heat can be supplied to the user in the cold weather, and the use comfort of the user is improved are achieved.

The application provides a trench power device with a back source structure and a preparation method thereof. The preparation method comprises the following steps: forming a P-type body region and an N-type drift region on a surface layer of an N-type substrate; forming a trench, wherein the trench extends from the P-type body region to the N-type substrate; forming a gate dielectric layer on a surface of the trench, and filling a gate layer in the trench; forming an isolation layer, and forming a drain through hole in the isolation layer; performing N-type ion implantation on the drain through hole to form an N-type drain region in the N-type drift region; forming a drain electrode; etching a back surface of the N-type substrate to form a source through hole, wherein the source through hole exposes the P-type body region; and depositing a source electrode on the back surface of the N-type substrate and in the source through hole, wherein the source electrode is connected with the N-type substrate and the P-type body region. The drain electrode and the gate electrode are integrated on the front surface of the device, the trench gate structure is adopted to improve the unit density and the channel control ability, and the source electrode is connected with the P-type body region through the back surface deep groove contact, so that the source contact resistance is effectively reduced, and the heat dissipation capacity is improved.

The invention discloses a KR stirring head with a locking function at the end, and relates to the technical field of KR stirring heads. The KR stirring head with the locking function at the end comprises a stirring connector, the stirring connector comprises a flange plate, a locking sleeve is fixedly connected to the bottom of the flange plate, a stirring core rod is inserted into the locking sleeve, the surface of the stirring core rod is sleeved with a refractory layer, a heat dissipation sleeve is fixedly connected to the top of the refractory layer, and the heat dissipation sleeve is fixedly connected to the bottom of the flange plate. The heat dissipation sleeve comprises a sleeve seat and a heat dissipation mesh enclosure, the bottom of the sleeve seat is fixedly connected with the top of the fireproof layer, and the bottom of the heat dissipation mesh enclosure is fixedly connected with the top of the sleeve seat. According to the KR stirring head with the locking function at the end, by arranging the friction sleeve, the blade frame gas guide pipe and the deformation layer between the fireproof layer and the core rod, the friction force is improved by utilizing the heating expansion of the friction sleeve, the probability of loosening and falling is reduced, the adverse effect of the thermal shock phenomenon is reduced, and the reliability of the stirring head is improved.

The present application discloses a solution internal circulation evaporation system, comprising an evaporation device, a steam compression device and a solution delivery device, wherein the steam compression device is installed on one side of the evaporation device, and the solution delivery device is installed on the other side of the evaporation device, and the steam compression device and the solution delivery device are both connected to the evaporation device. The present application uses a thousand-page heat synchronous exchanger to concentrate and evaporate the liquid to be concentrated, and the installation of gaps in multiple folding pages increases the heat conduction area, and at the same time sprays a non-stick layer, and facilitates the cleaning of precipitated attachments generated during evaporation and concentration.

The embodiment of the utility model provides a laser emission module and a laser radar, and relates to the technical field of laser radars. The laser emission module comprises a circuit board, a laser device and a bottom filling layer, the laser device is electrically connected with the circuit board, the bottom filling layer is arranged between the circuit board and the laser device and makes contact with the circuit board and the laser device at the same time, the heat conduction area between the circuit board and the laser device is increased through the bottom filling layer, and the heat dissipation effect of the laser emission module is improved; and good performance of the laser is ensured.

The drying device comprises a drying cylinder and fixing plates, the fixing plates are symmetrically arranged at the two ends of the drying cylinder, rotating shafts are symmetrically and fixedly installed on the drying cylinder, the rotating shafts are movably installed in the fixing plates, a first driving mechanism is arranged on the side wall of the fixing plate at one end, and a second driving mechanism is arranged on the side wall of the fixing plate at the other end. According to the resveratrol extraction device, the drying cylinder is arranged, before resveratrol is extracted, fresh polygonum cuspidatum needs to be dried until the water content is lower than 25%, then the polygonum cuspidatum is smashed into raw material powder with the particle size of 180-200 meshes in the smashing machine, the polygonum cuspidatum raw material is dried through the drying cylinder, and the resveratrol extraction device can be used for extracting resveratrol. The first driving motor can be controlled through the control equipment, the drying cylinder can be made to rotate, the polygonum cuspidatum raw materials in the drying cylinder can be rolled, the polygonum cuspidatum raw materials at the bottom can also be fully dried, and the polygonum cuspidatum drying device has the advantages of being high in practicability and good in drying effect.