1528results about How to "Heat dissipation fast" patented technology

The invention relates to the technical field of electric control cabinets, and discloses an electric control cabinet and a using method and application thereof in crane construction, the electric control cabinet comprises a shell assembly, the shell assembly comprises a cabinet body and a mounting assembly arranged in the cabinet body, one side of the mounting assembly is provided with a heat dissipation adjusting assembly, and the heat dissipation adjusting assembly is arranged on the other side of the cabinet body. The installation assembly comprises a fixing frame, the fixing frame is connected with the inner wall of the cabinet body, damping springs are arranged at the four corners of the surface of the fixing frame, and an installation frame is arranged at the end, away from the damping springs, of the fixing frame. Through cooperation of the mounting assembly and the heat dissipation adjusting assembly, the interval between every two adjacent heat dissipation fins is adjusted in real time according to different temperatures of different positions, the ventilation quantity between an adjusting plate and a ventilation groove is adjusted, and therefore rapid heat dissipation is achieved, the vibration amplitude of the mounting frame is reduced when external wind power is too large, and normal operation of electrical elements is ensured.

The invention discloses a fluid optimization method for a hydraulic torque converter, which comprises the following steps of: constructing a geometric model of the hydraulic torque converter, generating a hydraulic torque converter model, and further performing grid division on the hydraulic torque converter model; setting a preset fluid model, setting fluid attributes of the preset fluid model, and further setting a preset boundary condition and an initial flow field condition; calculating an internal flow field of the hydraulic torque converter by adopting a preset solving method, analyzing a flow field result and identifying an abnormal region with energy loss exceeding a preset range; carrying out preset structure optimization on the hydraulic torque converter, generating a hydraulic torque converter optimization model, carrying out fluid dynamic simulation, and verifying an optimization result; and circulating the optimization process until the optimization model of the hydraulic torque converter meets a preset optimization requirement. According to the fluid optimization method for the hydraulic torque converter, the distribution of the flow field in the hydraulic torque converter can be deeply researched through analogue simulation, an energy loss source is found out, and a targeted optimization scheme is put forward.

The invention discloses a preparation process of a high-thermal-conductivity composite substrate, and the process comprises the steps: fixing a pre-prepared skeleton on an insulating base layer, and enabling branches of the skeleton and the surface of the insulating base layer to jointly define a plurality of heat dissipation spaces; dividing the plurality of heat dissipation spaces into at least one high heat dissipation space and at least one low heat dissipation space according to the layout and heating characteristics of a predetermined electronic component; a first heat-conducting filler is injected into the high-heat-dissipation space, a second heat-conducting filler is injected into the low-heat-dissipation space, curing treatment is conducted, the heat conductivity coefficient of the first heat-conducting filler is larger than that of the second heat-conducting filler, and the first heat-conducting filler and the second heat-conducting filler are combined with the framework to form a heat-conducting layer; a functional layer of the printed circuit board is fixed on the surface of the heat conduction layer, the area, corresponding to the high-heat-dissipation space, of the functional layer is used for installing high-heat-dissipation electronic elements, and the area, corresponding to the low-heat-dissipation space, of the functional layer is used for installing low-heat-dissipation electronic elements According to the technical scheme, different heat conduction measures can be adopted for different heating elements.

The invention relates to the technical field of control panels, and discloses a PLC control panel with a heat dissipation function, the PLC control panel comprises a casing, the left side of the casing is fixedly connected with a display assembly, the right side of the casing is provided with a heat dissipation port, and the inner wall of the casing is provided with a fan assembly; a cleaning mechanism is arranged on the right side of the machine shell, and a drying mechanism is arranged on the inner wall of the machine shell. While heat dissipation is carried out, dust removal is carried out on a heat dissipation opening through movement of a motor cleaning brush roller, the situation that dust accumulation causes blockage of the heat dissipation opening and affects air inlet is prevented, the heat dissipation effect is improved, and the equipment is more stable and reliable during heat dissipation; and during cleaning, the first pulley drives the cleaning and brushing roller to rotate to clean the heat dissipation opening, so that the cleaning area is larger, the service life of the equipment is prolonged, the cleaning cost is reduced, the overall working efficiency of the equipment is improved, and the heat dissipation efficiency of the equipment is better.

The invention is suitable for the technical field of permanent magnet all-in-one machines, and provides a permanent magnet all-in-one machine with an internal heat dissipation structure. Heat dissipation ribs; a rear housing; a vent; a motor shaft; the heat dissipation plate is fixed in the rear shell; the radiating fins are uniformly mounted on the radiating plate; the bowl-shaped wind shielding piece is fixed on one side, far away from the heat dissipation plate, of the heat dissipation sheet; the fan shaft is rotationally connected with the motor shaft; the heat dissipation blades are installed at the ends, located in the rear shell, of the heat dissipation blades; the connecting shaft is rotationally connected with the front shell and is parallel to the fan shaft; the adjusting gear pair is respectively connected with the fan shaft and the connecting shaft; a thermal inductance driving mechanism used for connecting the motor shaft and the connecting shaft is arranged in the front shell; the thermal inductance driving mechanism is driven by the transmission adjusting mechanism to automatically switch the operation state. The transmission adjusting mechanism is arranged in the motor shaft and comprises a second memory alloy part and a first memory alloy part; the LED lamp has a good heat dissipation effect.

The invention relates to the technical field of phase change materials, in particular to an intrinsic flame-retardant solid-solid phase change material and a preparation method and application thereof. The invention provides an intrinsic flame-retardant solid-solid phase change material which is prepared from the following raw materials in parts by mass: 65-75 parts of polyethylene glycol, 7-17 parts of epoxy resin and 18-33 parts of a flame retardant, the flame retardant is prepared from phosphorus pentoxide, expanded graphite and melamine; the epoxy resin comprises epoxy resin glue and an epoxy curing agent. The intrinsic flame-retardant solid-solid phase change material can solve the technical problems that a phase change material is easy to leak and easy to burn.

The utility model discloses a rapid cooling device for a graphitization furnace, which is applied to the graphitization furnace and comprises a protective box, the inner wall of the protective box is fixedly connected with the graphitization furnace, the top wall of the protective box is fixedly connected with a water tank, an electric pump is mounted in the water tank, a water suction pipe is mounted on the side wall of the electric pump, and a water outlet pipe is fixedly mounted on the other side wall of the electric pump. The bottom end of the water outlet pipe penetrates through the protection box and extends downwards, the bottom end of the water outlet pipe is fixedly connected with a spiral pipe, and the spiral pipe is arranged on the outer wall of the graphitization furnace in a surrounding mode. The stirring rods drive the vertical rods to rotate, the multiple sets of stirring rods rotate, the material mixing effect is better, the inner wall of the graphitization furnace is cleaned by arranging the supporting rods in cooperation with the scraping plates, it is avoided that impurities are accumulated on the inner wall of the graphitization furnace, the heat dissipation effect of the graphitization furnace is affected, and the heat dissipation effect of the graphitization furnace is better.

The invention discloses an energy-saving uniform-temperature open type sintering furnace applied to production of a DCB copper-clad ceramic substrate, and belongs to the technical field of sintering furnaces, the energy-saving uniform-temperature open type sintering furnace comprises a sintering furnace body, a feeding table and a discharging table are arranged on the two sides of the sintering furnace body respectively, and a sintering hearth is formed in the sintering furnace body. By arranging the holding port, the heat dissipation port and the four-channel heat exchanger, a copper-clad ceramic substrate just entering the sintering furnace body can be preheated, so that energy consumption caused by preheating is reduced, by arranging the heating pipe, high-temperature gas can be further used for driving the waste heat driving mechanism, and by arranging the preheating detection mechanism, the heat dissipation efficiency of the sintering furnace is improved. By arranging the waste heat driving mechanism, air pressure can be provided for the dust removal port, so that the dust removal port has a dust removal function on the copper-clad ceramic substrate, the copper-clad ceramic substrate can be positioned by the sliding plate and the connecting clamping plate on the reciprocating screw, and the copper-clad ceramic substrate is kept in the middle on the material conveying belt, so that the heating efficiency is improved.

The invention discloses a phase change heat transfer motor stator heat dissipation structure and a design method, and belongs to the technical field of motor heat management, the structure comprises a stator iron core, a copper wire winding and a flattening type phase change heat transfer device, the copper wire winding is arranged on the inner side of the stator iron core, and the flattening type phase change heat transfer device is arranged on the outer side of the stator iron core; the flattening type phase change heat transfer device is arranged in a groove, in contact with the stator core, in the radial interior of the copper wire winding. The invention further discloses a design method of the heat dissipation structure. By adopting the heat dissipation structure and the design method, the thermal control technology of the motor stator winding is researched and developed based on the phase change heat transfer device, and the purposes of greatly reducing the peak temperature of the motor, enhancing the temperature uniformity of the motor and realizing high-overload-multiple safe operation are achieved.

The utility model relates to the technical field of batteries, and discloses a battery module and a battery pack, and the battery module comprises a battery cell assembly and a heat management assembly. A plurality of battery cell assemblies are arranged; the heat management assembly comprises a first liquid cooling plate and a second liquid cooling plate which are oppositely arranged as well as cross beams and longitudinal beams which are connected between the first liquid cooling plate and the second liquid cooling plate, the cross beams and the longitudinal beams divide the space between the first liquid cooling plate and the second liquid cooling plate into a plurality of first accommodating spaces, and the plurality of battery cell assemblies are correspondingly arranged in the first accommodating spaces respectively; and the first liquid cooling plate, the second liquid cooling plate, the cross beam and the longitudinal beam are respectively connected with the battery cell assembly in a limiting manner. According to the utility model, the battery cell assembly and the thermal management assembly are integrated, so that the structure of the battery module is more compact, and the energy density of a battery pack is favorably improved; when the battery module is assembled with the battery pack shell, the whole battery module and the battery pack are directly positioned, mounted and fixed at one time, so that the positioning connection of the battery core assembly, the heat management assembly and the battery pack shell can be realized, and the assembly process is saved.

The utility model discloses a transformer insulating oil micro-water monitoring sensor which comprises a shell, a protection structure is installed on one side of the shell and comprises a sealing strip, a wear-resisting plate, a damping block and wear-resisting lines, the sealing strip is installed on one side of the shell, an installation base is installed at the top end of a permanent magnet, and a shell body is installed at the top end of the installation base. The top end of the shell is provided with a connecting block, and the top end of the connecting block is provided with a plug. According to the utility model, the mounting plate is connected with the connecting plate and is fixedly connected with the fan, the fan rotates at a high speed to generate airflow to blow away internal hot air so as to cool the interior of the sensor, meanwhile, the cooling fins are mounted at the bottom end of the fan, the cooling holes are formed in the cooling fins, and the cooling fins are made of metal materials with strong thermal conductivity; when the transformer insulating oil micro-water monitoring sensor is used, the cooling fins can absorb heat, and the surface area of the cooling fins is large, so that heat dissipation can be quickly carried out, and the purpose of heat dissipation of the transformer insulating oil micro-water monitoring sensor is achieved.

The invention relates to an automobile capacitor and a manufacturing method thereof, and relates to the technical field of capacitors, and the automobile capacitor comprises a housing, capacitor bodies arranged in the housing at intervals, and a pouring sealant which is poured into the inner cavity of the housing to wrap the capacitor bodies. A first contact piece and a second contact piece which extend out of the shell are respectively arranged at two ends of the capacitor body, a heat dissipation hole is formed in the bottom of the shell, and a metal heat dissipation piece for dissipating heat of the first contact piece and the second contact piece is arranged in the heat dissipation hole; stepped grooves are formed in the metal radiating fins in the circumferential direction, and embedded convex rings matched with the stepped grooves are arranged at the radiating holes of the shell. With the adoption of the structure, heat of the capacitor body can be radiated through the metal radiating fins by arranging the metal radiating fins, so that the radiating effect of the capacitor is improved, and the capacitor is not easy to damage.

The invention discloses a low-loss high-impedance power transformer which comprises a voltage transformation assembly, the voltage transformation assembly comprises a second shell, a power transformer body is arranged in the second shell, a driving box is embedded in the second shell and located on the ground and underground, and a ball reciprocating lead screw and a driving motor are arranged in the driving box; one end of a driving motor shaft is connected with one end of the ball reciprocating screw, and an impedance assembly is arranged at one end of the second shell; the impedance assembly comprises a first shell located at one end of the second shell, a heat dissipation and dust removal assembly is arranged on one side of the first shell, and an opening is formed in the other side of the first shell; the heat dissipation and dust removal assembly comprises a box body fixed to one side of the first shell, the bottom of the first shell is connected with the ball reciprocating lead screw, and an electric reactor is arranged in the first shell and electrically connected with the power transformer body. According to the device, the power transformer main body and the reactor can be maintained conveniently while independent heat dissipation of the power transformer main body and the reactor is guaranteed.

The I-type linear motor comprises a stator and a rotor, the rotor comprises a coil holder and an I-type coil assembly, the I-type coil assembly comprises a left coil, a right coil and a cooling system arranged between the left coil and the right coil, the cooling system comprises a plurality of heat dissipation pipes, a water inlet pipeline and a water outlet pipeline are arranged in the coil holder, and the water inlet pipeline is communicated with the water outlet pipeline. And two ends of the radiating pipe are respectively communicated with a water inlet pipeline and a water outlet pipeline. According to the invention, heat dissipation is uniform and fast, the stability of motor operation can be effectively improved, and the stability of positioning precision and response speed during equipment operation is further ensured.

A robot-controlled electrochemical ultrasonic shear rheological polishing manufacturing method comprises the following steps: dissolving the anode surface of a workpiece and forming a passive film by using electrochemical reaction, enabling nano abrasive particles in an electrochemical polishing solution to generate micro jet flow to shear and remove the passive film by using an ultrasonic cavitation-shear composite effect, and then continuing to perform the electrochemical reaction. The invention discloses a robot-controlled electrochemical ultrasonic shear rheological polishing manufacturing device which comprises a box body, an ultrasonic auxiliary assembly, a power supply auxiliary assembly, an electrochemical polishing solution circulation auxiliary assembly, a polishing assembly and a robot control assembly. The ultrasonic auxiliary assembly, the power supply auxiliary assembly, the electrochemical polishing liquid circulation auxiliary assembly and the robot control assembly are located at the outer end of the box body. According to the method, the polishing efficiency can be greatly improved, and the near-atomic-scale polishing precision of atoms can be achieved.

The invention discloses a double-temperature-zone liquid cooling heat management system, an operation method and an energy storage system applying the double-temperature-zone liquid cooling heat management system. The double-temperature-zone liquid cooling heat management system comprises a first temperature zone heat management subsystem and a second temperature zone heat management subsystem. A first circulating pump, a heater, a first heat exchanger and a liquid cooling medium channel of a first radiator of the first temperature zone heat management subsystem are sequentially and circularly communicated; a second circulating pump, a second radiator and a liquid cooling medium channel of a second heat exchanger of the second temperature zone heat management subsystem are sequentially and circularly communicated; the first temperature zone heat management subsystem and the second temperature zone heat management subsystem can selectively operate independently and can also selectively communicate with each other to operate. The invention mainly solves the problem of how to provide a heat management system with double temperature zones for an energy storage system. According to the invention, the thermal management temperature zone requirements of the battery pack and the power conversion device can be met more effectively, and the system has the characteristics of high integration level, rich functions, good thermal management effect, low energy consumption and good economical efficiency.

The invention discloses a thin-wall sheath cable and a rapid forming process thereof, and the thin-wall sheath cable comprises a cable core, an insulating layer wrapping the cable core, and a sheath at the outermost layer. Wherein the cable core is formed by twisting a plurality of copper single wires; the insulating layer is made of a flame-retardant cross-linked polyethylene material; the sheath is made of a modified nylon material. Printing marks of the thin-wall sheath cable body are arranged on the insulating surface, the insulating layer and the sheath are extruded in a segmented mode, and the cable is formed at a time. The thin-wall sheath cable has the characteristics of flame retardance, environmental protection, wear resistance, small outer diameter, light weight, fast heat dissipation, large relative current-carrying capacity, easiness in pipe penetrating construction and the like.

The invention relates to the technical field of leather processing, in particular to a leather forming processing device for automotive trim. The device comprises a pretreatment device and a mold device, the rear side of the mold device is connected and provided with a trimming device, the front side of the mold device is connected and provided with a heating device, and the mold device is internally provided and connected with a cooling device. The pretreatment device is used for improving the quality and the processing efficiency of leather, improving the consistency of products and effectively shortening the production cycle, the mold device is used for forming the leather, ensuring the size accuracy and effectively improving the consistency of the products, and the heating device is used for softening the leather, facilitating subsequent processing, improving the process effect and effectively improving the quality of the products. The cooling device is used for rapidly cooling leather, stabilizing the size and effectively improving the product precision, the trimming device is used for finely adjusting the leather and improving the finished product quality, and the safety monitoring device is used for guaranteeing the safety of the machining process and effectively improving the operation safety.

The utility model relates to the technical field of projection equipment, in particular to a projector, which comprises a shell, and a projection assembly, an air uniformizing structure and a cooling fan which are arranged on the shell, a containing cavity is formed in the shell, an air duct inlet communicated with the containing cavity is formed in the shell, and the projection assembly is arranged in the containing cavity; the air inlet end of the air uniformizing structure is connected with an air outlet of the cooling fan, and the air outlet end of the air uniformizing structure is connected with the air channel inlet. According to the projector provided by the embodiment of the invention, the air uniformizing structure is arranged between the cooling fan and the air duct inlet, so that airflow blown by the cooling fan passes through the air uniformizing structure and then enters the accommodating cavity of the shell to dissipate heat of the internal projection assembly, thereby enabling the airflow entering the accommodating cavity to be distributed more uniformly; the problem of poor local heat dissipation effect caused by non-uniform distribution of heat dissipation airflow in the existing projector can be effectively solved.

The invention relates to the technical field of plastic forming, and particularly discloses a forming mold for processing an ultrahigh polyethylene wear-resistant pipe based on a pipeline compensator lining, which comprises a base, a lower mold and an upper mold, and further comprises an inner core which is in the shape of a hollow cylinder and is arranged in a mold cavity, and the end cover is sleeved on the outer wall of the inner core. The upper mold is moved upwards, then the lifting seat is moved upwards, the inner core drives the lining to ascend, the bottom of the cured lining is separated from the lower mold, and finally the drawing rod, the inner core and the end cover are driven to move outwards through the second telescopic part and the third telescopic part to take out the lining. And finally, the lining is pulled outwards while rotating from the outer wall of the inner core to complete demolding, compared with a demolding mode in the prior art, the demolding mode is faster, and the lining is not prone to deformation during demolding.

The utility model relates to the technical field of metal material processing, and discloses an aluminum-magnesium series alloy ingot smelting cooling device, which comprises a cooling tank, a heat exchanger, a heat exchanger and a heat exchanger, the smelting tank is arranged at the top of the cooling pool; the first cooling structure comprises a fixed water jacket, and the fixed water jacket is fixedly mounted on the outer wall of the smelting tank; the second cooling structure comprises six groups of stirring blades, and the stirring blades are arranged in the cooling tank; the water pump is fixedly mounted at the top of the cooling pond; the control panel is fixedly installed at the top of the cooling pond, the first cooling structure further comprises a first water conveying pipe and a second water conveying pipe which are fixedly installed at the two ends of the fixed water jacket correspondingly, the purpose of conducting rapid heat dissipation on the device is achieved, the cooling effect of cooling water is improved, the cooling rate of the smelting furnace is increased, and the using convenience of the device is improved; the device can conveniently collect high-temperature alloy liquid, and resource waste is reduced.

The utility model discloses a signal output detection tool of a terahertz signal up-down frequency converter, and belongs to the field of frequency converter detection equipment. The problems that internal circuits are prone to interweaving and winding and the heat dissipation performance is poor are solved. A connecting column is fixedly installed on one side of the shell, a cover body is fixedly installed on the top of the shell, a wire arranging assembly and an adjusting mechanism are movably installed in the shell, the wire arranging assembly is located below the adjusting mechanism, a transmission line and a fan are fixedly installed in the shell, the transmission line is located above the adjusting mechanism, and the fan is located on one side of the wire arranging assembly. According to the utility model, the fixing ring is used for fixing lines, so that the lines in the shell are arranged, the internal lines are effectively prevented from being easily interwoven and wound, the signal quality and accuracy are improved, meanwhile, the rotating rod is rotated to drive the baffle to move, a heat dissipation gap is formed in one side of the shell, and the heat dissipation effect is improved through the cooperation of the fan and the heat dissipation gap. And the heat dissipation performance in the detection tool is effectively improved.

The invention provides an elliptical gear flow meter, belongs to the technical field of flow meters, and solves the technical problem that an existing signal receiver cannot bear the temperature of 100 DEG C or above, so that the flow meter cannot be applied to a scene of 100 DEG C or above. An elliptical gear flowmeter comprises a flow base, a shell arranged on the flow base and two communicated gear cavities formed in the shell, a pair of flow channels are formed in the flow base, one ends of the two flow channels are communicated with the corresponding gear cavities, a pair of elliptical gears are rotationally connected to the flow base, and the elliptical gears are arranged in the elliptical gears. The two elliptical gears are located in the corresponding gear cavities and meshed with each other, a pair of first magnets is arranged on the top face of one elliptical gear, an upper end cover is arranged on the shell, and a shifting wheel is rotationally connected to the upper end cover. The flow meter has the advantages that heat cannot be concentrated and accumulated, heat dissipation is fast, the heat-resistant temperature of the flow meter is increased, the service life is prolonged, and the flow meter is suitable for various high-temperature scenes.

The present invention relates to the technical field of waste heat recovery, and discloses a steel slag cooling waste heat recovery device and method, comprising a support frame, on which are mounted an air-cooled slag-forming mechanism, a waste heat transfer mechanism and a heat exchanger, the air-cooled slag-forming mechanism being connected to the tuyere end of the heat exchanger for providing hot air to the heat exchanger; the waste heat transfer mechanism being connected to the water inlet end of the heat exchanger for supplying water to the heat exchanger, and the water in the heat exchanger being used to absorb the heat in the hot air to realize waste heat recovery. The present invention solves the problem that waste of steel slag heat causes waste heat and also causes serious environmental pollution.

The invention discloses a PET electrical insulation adhesive tape and a preparation method thereof, the PET electrical insulation adhesive tape comprises a PET layer and a pressure-sensitive adhesive layer coated on the PET layer, the pressure-sensitive adhesive layer is formed by coating an acrylic acid pressure-sensitive adhesive, and the acrylic acid pressure-sensitive adhesive is prepared by the following steps: adding methyl methacrylate, acrylic acid, hydroxyethyl acrylate and a functional monomer into deionized water, and stirring to obtain a mixture; stirring at a constant speed, adding sodium persulfate and a surfactant, heating to 80-85 DEG C, continuously stirring and reacting for 2-4 hours to prepare an acrylic pressure-sensitive adhesive; according to the present invention, the excellent electrical insulation property of the PET material endows the substrate with the excellent insulation property, and in order to solve the problem of poor heat conduction and heat dissipation of the existing PET adhesive tape, the high thermal conductivity acrylic acid pressure-sensitive adhesive is prepared, such that the PET electrical insulation adhesive tape can rapidly dissipate heat.

The utility model discloses a portable energy storage equipment box which comprises a storage box, and a heat dissipation mechanism and a taking mechanism are arranged on the surface of the storage box. The heat dissipation mechanism comprises heightening supporting legs, an air inlet and an air outlet are formed in the bottom and the top of the storage box respectively, a supporting shell is arranged on the inner side of the storage box, first heat dissipation fins are fixed to the surface of the supporting shell, a plurality of heat conduction pipes are fixed to the inner wall of the storage box, and second heat dissipation fins are fixed to the surfaces of the heat conduction pipes. And the taking mechanism comprises a box cover, the box cover is hinged to the top of the storage box, a mounting plate is arranged in the storage box, movable wheels are fixed to the bottom of the mounting plate, a guide rod is fixed to the inner wall of the storage box, and a sliding block is slidably connected to the surface of the guide rod. The energy storage equipment box has the advantages that effective heat dissipation can be realized without an external power supply, the heat dissipation effect of the battery is improved, and the problem that the heat of the battery is inconvenient to dissipate in the conventional energy storage equipment box is solved.

The invention provides a cooling device for a laser 3D printer. The cooling device comprises a 3D printer body, a lifting table, a laser head, a middle partition conduction mechanism, a heat transfer circulation flow part, a backflow supply part and an air cooling module. The lifting table is arranged in the 3D printer body, the laser head is arranged on the lifting table, the middle partition conduction mechanism is arranged on the lifting table and the laser head, and the heat transfer circulating flow part is arranged on the 3D printer body, the lifting table and the middle partition conduction mechanism. The backflow supply part is arranged on the heat transfer circulation part, and the air cooling module is arranged on the 3D printer body; according to the cooling device for the laser 3D printer, a heating source is accurately, effectively and stably cooled for a long time in an efficient heat dissipation mode, heat transmission is fundamentally reduced, an air cooling module is used for assisting with traditional air cooling heat dissipation, it is guaranteed that the excellent cooling effect is obtained under the combined action of double measures, and the cooling effect is improved. The temperature in the 3D printer body is practically and effectively controlled within a reasonable range, and stable work and high-quality printing of the 3D printer body are ensured.

The invention relates to the technical field of adhesive tapes, and particularly discloses a double-sided adhesive tape with excellent weather resistance and a preparation method thereof.The double-sided adhesive tape comprises a first release film layer, a first adhesive layer, a base material layer, a second adhesive layer and a second release film layer, the adhesive layer is prepared from an adhesive through simple processes of coating, drying and the like, industrial production is easy, and the adhesive tape has good weather resistance. The adhesive is obtained by mixing an acrylate polymer, modified polyvinyl alcohol, a defoaming agent and a plasticizer, the acrylate polymer and the modified polyvinyl alcohol have excellent adhesive power and can be firmly adhered to various materials, the raw materials of the adhesive form a stable composite system through structural complementation, and through chemical bonding and physical effects, the adhesive can be firmly adhered to various materials. The comprehensive performance of the double-sided adhesive tape is further improved, and the double-sided adhesive tape has excellent toughness and stability, is not easy to age and fall off, and is improved in weather resistance, adhesion and tensile strength, so that the double-sided adhesive tape is more durable in the use process.

The invention relates to a power module and a power device, the power module is arranged on the power device, the power device comprises a first substrate, the first substrate is provided with a power bonding pad, and the power module comprises a plastic package body; the lining plate is arranged on the plastic package body, the lining plate comprises a first surface and a second surface which are oppositely arranged, and the second surface of the lining plate extends towards the top of the plastic package body; the chip is arranged on the first surface of the lining plate; the first end of the metal column is connected with the first surface of the lining plate, the second end of the metal column extends towards the bottom of the plastic package body to form an exposed part, and the exposed part is in compression joint with the power bonding pad. The top space of the plastic package body is not shielded, the heating amount of the chip can be conducted to the second surface of the lining plate from the first surface of the lining plate, and the heating amount of the element of the first substrate can be conducted to the second surface of the lining plate through the metal columns, so that rapid heat dissipation is realized, and the long-term operation reliability of the power module is ensured.

The invention relates to a lithium battery with a good high-temperature-resistant effect, and belongs to the technical field of lithium batteries, the lithium battery comprises a placement box, a lithium battery main body, a heat dissipation assembly, a ventilation assembly and a protection assembly, one end of the placement box is hinged to a box cover, support rods are fixedly mounted on two sides of the bottom of the placement box, and mounting holes are formed in four sides of the placement box; a movable mounting plate is mounted in the mounting hole through a driving part, mounting grooves are symmetrically formed in the bottom of the placement box and one end of the box cover, the ventilation assembly is mounted in the mounting grooves, a square hole is formed in the middle of the upper end of the box cover, and a T-shaped lifting plate is inserted into the square hole, so that heat generated by the lithium battery main body can be transferred to the cooling fins; heat on the heat dissipation fins is discharged through the exhaust fan, rapid heat dissipation is carried out on the heat dissipation fins, the heat dissipation effect is good, the high-temperature-resistant effect of the lithium battery main body is improved, when the lithium battery main body is collided and shaken by external force, the impact force is buffered through the spring and the buffer air bag, the lithium battery main body is prevented from being damaged, and the service life of the lithium battery main body is prolonged.