32results about How to "Good cooling function" patented technology

The utility model discloses a CVT (continuously variable transmission) gearbox, which relates to the technical field of gearboxes and comprises a case, a first transmission wheel set is rotatably connected to one side of the interior of the case, and a second transmission wheel set is rotatably connected to the other side of the interior of the case. By the adoption of the structure, friction elements in the CVT gearbox can be guaranteed to be fully lubricated due to the automatic lubricating function of the gearbox, the requirement for manual lubrication is reduced, and therefore maintenance cost is reduced, normal work of parts in the CVT gearbox can be guaranteed due to the good automatic lubricating system, friction and abrasion are reduced, and the service life of the CVT gearbox is prolonged. According to the CVT gearbox, the self-lubricating function is achieved, so that the service life of parts is prolonged, it can be guaranteed that the CVT gearbox can keep a good lubricating state under various working conditions through the self-lubricating function, the reliability and stability of a system are improved, energy loss can be reduced through good lubrication, the transmission efficiency is improved, and therefore the CVT gearbox has better performance and fuel economy.

A high-voltage and high-current fast fuse comprises an end cover, a contact, a fuse tube, a fuse body, a fuse body guide column, arc extinguishing filler and a fastening screw, characterized in that two or more fuse body guide columns are arranged in the fuse tube, the fuse body is fixed on the fuse body guide column in a spiral winding manner, the contact is provided with a fuse body perforation, the fuse body is welded on the outer end surface of the contact through the perforation, the end cover end surface is overlapped on the outer end of the contact and is connected and fixed with the contact through the fastening screw installed hole of the end cover and the contact and the fastening screw. The disadvantages of poor welding are overcome to the maximum extent. In the case of not increasing the length of the fuse tube or even shortening the length, the rated voltage and the rated current of the fuse can be effectively improved, the anti-impact and anti-bumping capabilities of the fuse are improved, and the fuse can be used to protect the integrated power system of a ship, a large energy storage and power transmission system and other high-voltage and high-current power transmission systems.

The invention discloses a dual-purpose water bed with refrigeration and temperature adjustment functions, the dual-purpose water bed comprises a water bed mattress and a circulating cold-heat exchange mechanism, the water bed mattress comprises a multi-layer structure, the multi-layer structure comprises a first fixing layer, a circulating hose and a second fixing layer from top to bottom, the circulating hose is clamped and fixed between the first fixing layer and the second fixing layer, and the circulating hose is clamped and fixed between the first fixing layer and the second fixing layer. The circulating hose extends outwards to form a circulating water inlet pipe and a circulating water outlet pipe; the device is characterized in that the circulating cold-heat exchange mechanism comprises a water cup, a water cup water inlet pipe, a water cup water outlet pipe, a microcomputer controller, a micro circulating water pump and a heating rod with a temperature measuring function; the water mattress disclosed by the invention is reasonable in structure, has dual-purpose functions of refrigeration and temperature regulation, and can be conveniently assembled with the water cup and the water mattress through the connection of the circulating hose, and the water cup and the water cup cover are also of an assembled structure to facilitate replacement of water and ice, so that the refrigeration and temperature regulation functions are improved.

The invention provides a tray and a cooling device capable of realizing a more excellent cooling function. The tray can be positioned in front of an outlet for blowing out cold air in a cooling chamber of the cooling device. The tray includes a tray body and a cover. The tray body has a space that opens upward. The cover covers at least a portion of the opening of the tray body.

A kind of heat dissipation structure for LED light strip, including mounting bracket and at least one heat dissipation part on mounting bracket, characterized in that, the heat dissipation part is attached with LED light strip by mounting bracket, the two sides of mounting bracket have mounting slot, for heat dissipation part to limit, the opening of mounting slot is through, the outside of heat dissipation part in mounting slot has plug-in unit, the outside of plug-in unit is provided with extension plate, the fin on the extension plate is used to conduct heat absorbed by heat dissipation part outward;Mounting bracket is made of soft material as a whole, can be well fitted on bendable light band, and the cooperation mode of mounting bracket bottom surface slot and heat dissipation part makes it possible to achieve better heat conduction and heat dissipation function at each part of light band bending, solves the problem that conventional metal heat dissipation fin cannot bend with light band, leading to part of light band cannot be covered by heat dissipation.

The bidirectional combined pump with the heat dissipation function comprises motor shells and a pump body, one sides of the two motor shells are fixedly connected through a connecting cover, the other sides of the two motor shells are fixedly connected through a connecting plate, the ends of the motor shells are fixedly connected with one end of the pump body in a sealed mode, and the other end of the pump body is fixedly connected with a pump cover in a sealed mode. A pump cavity is formed in the pump body, the gear assembly is rotationally arranged in the pump cavity, the gear assembly is fixedly connected with one end of the output shaft, the other end of the output shaft penetrates through the pump body and then is fixedly connected with a rotating part of the stator and rotor assembly, and a fixed part of the stator and rotor assembly is fixedly arranged on the inner wall of the motor shell. A first liquid cavity and a second liquid cavity which are matched with the gear assembly are formed in the pump cavity, and the first liquid cavity and the second liquid cavity communicate with the interior of the motor shell through pressure relief channels correspondingly. The combined pump not only can realize bidirectional rotation, but also has a better heat dissipation function, can be used for a long time, is small in occupied space, and meets the requirements of compact equipment.

The tool bit structure comprises a temperature changing piece and a heat dissipation piece, the temperature changing piece is connected with the heat dissipation piece in a heat conduction mode, and the heat dissipation piece is provided with a plurality of heat dissipation holes capable of increasing the heat dissipation area. According to the utility model, the heat dissipation piece is provided with the plurality of heat dissipation holes, so that the heat dissipation area is increased, the heat dissipation effect of the whole tool bit structure is improved, and the generated heat can be more effectively transferred to the surrounding environment; meanwhile, the heat dissipation holes are formed in the heat dissipation piece, the weight of the product can be reduced, and the size of the heat dissipation piece can be reduced to achieve the purpose of reducing the overall size of the product.

A vehicle door map pocket structure with a refrigeration function and a vehicle, the vehicle door map pocket structure comprises a vehicle door, a mounting groove is formed in the vehicle door, and the mounting groove is communicated with a map pocket of the vehicle door; the refrigerating device is arranged in the mounting groove and is fixed on the vehicle door; the refrigerating device comprises a compressor, a condenser and a refrigerating pipeline; the condenser is connected with the compressor, one end of the refrigeration pipeline is connected with the compressor, and the other end of the refrigeration pipeline is connected with the condenser. The refrigerating device is integrated in the vehicle door and communicated with the map bag, cold air generated by the refrigerating device flows into the map bag, the function of the map bag is increased, the storage requirement can be met, articles placed in a map can be refrigerated, the map bag is of an open structure and can participate in whole vehicle refrigeration at the same time, and the map bag is convenient to use. The comfort of the whole vehicle is improved, and the use experience of passengers is improved.

The protective lampshade for the illuminating lamp relates to the technical field of protective lampshades and comprises an upper lampshade body, a lower lampshade body is fixedly connected to the bottom end of the upper lampshade body, a plurality of connecting pieces are fixedly connected to the position, close to the top end, in the upper lampshade body, and an electric net is movably connected to the center in the upper lampshade body through the connecting pieces. The top end of the upper shade body is rotationally connected with a lampshade base, and an air exchange assembly is fixedly connected to the position, close to the center, in the lampshade base. The end, close to the inner portion, of the abutting rod is fixedly connected with the abutting block, the inclined face of the abutting block corresponds to the outer wall of the abutting ring, and the limiting groove with a certain height is fixedly connected to the position, close to the top end, in the upper cover body, so that the power grid can slide in the limiting groove; the power grid can be supported upwards and moved by a certain distance, the multiple connecting pieces drive the abutting ring to slide upwards, the power grid is disengaged, and therefore the problems that the device is difficult to disassemble and troublesome to clean are avoided, and the illuminating lamp is prevented from being damaged during cleaning.

The invention relates to the technical field of forging production, and discloses a free forging hydraulic press lower anvil with cooling and rotating functions and a method thereof, and the method is realized through a lower anvil structure and comprises the following steps: forging, when an upper anvil punches downwards, a workpiece transmits pressure to a rotating disc, the rotating disc extrudes a buffer assembly and then is in contact with an anvil block, and the anvil block transmits the pressure to the ground; forging is completed; the hydraulic motor is used for conveying high-pressure oil to the interior of the anvil block, and the hydraulic motor drives the rotating disc to rotate; and cooling is conducted, specifically, high-pressure gas enters the anvil block through a serial flow channel in the anvil block and is conveyed to the hydraulic motor and the rotating disc along the serial flow channel and the assembling gap of the lower anvil, and cooling is completed by converting high pressure into low pressure. Rotating and cooling functions are integrated in the limited and narrow lower anvil structure, the risk that the lower anvil is prone to deformation at high temperature is reduced, meanwhile, the borne impact force is buffered, the service life of the anvil block and the hydraulic motor is prolonged, the forging capacity is improved, and the lower anvil structure can be suitable for various hydraulic devices.

A display device is disclosed, comprising: a display panel, which is arranged on the lower surface of the cover member; and a buffer plate, which is arranged on the lower surface of the display panel, wherein the buffer plate includes an embossing layer and a metal foam layer with a porous structure, wherein the buffer plate includes a main body and at least one protrusion connected to the cover member.

The utility model relates to a powder material embedded water tank type composite mixing and cooling machine, belongs to powder material mixing and cooling equipment technical field. Purpose at providing a powder material embedded water tank type composite mixing and cooling machine of cooling area big, high efficiency while mixing. Adopt following technical scheme, including box, cooling water tank, stirring device and aerator, cooling water tank and stirring device all set up in the inside of box, and aerator sets up at the bottom of box, the cooling water tank is flat, and multiple cooling water tanks are evenly arranged as two rows of horizontal alignment, and are fixed on the inner wall of the two sides of box perpendicularly, and one stirring shaft is located between two rows of cooling water tanks, and both ends are rotatably installed on the box, and one end is connected with transmission device, and multiple stirring blades are uniformly distributed on the stirring shaft, multiple stirring blades are arranged along the length direction of stirring shaft, and the stirring blade extends between the cooling water tank of two sides. The utility model is used for mixing powder material and cooling it.

The utility model discloses a photovoltaic grid-connected box of anti -reverse flow protection, including photovoltaic grid-connected box, be equipped with three installation groove body in photovoltaic grid-connected box, including left installation groove, right installation groove and lower installation groove, left installation groove is equipped with first anti -reverse flow device, second anti -reverse flow device and intelligent circuit breaker, right installation groove is equipped with current transformer, lower installation groove is equipped with photovoltaic isolation knife switch, surge protector and photovoltaic grid-connected switch, and the rear side of photovoltaic grid-connected box is equipped with air -cooled fin. The utility model discloses through first anti -reverse flow device, second anti -reverse flow device in photovoltaic grid-connected box, the current, voltage etc. of demarcation point's data are measured, and the real -time power value, power direction are calculated, whether " reverse flow " exists is detected in real time, if the reverse flow can carry out real -time regulation control to photovoltaic control equipment's output, prevent electric energy backflow to the electric network, the rear side of photovoltaic grid-connected box adds air -cooled fin, can realize better heat dissipation effect, novel structure, strong practicality, is fit for promoting.

The utility model provides an intelligent composite air cooling device which comprises an outer shell, a draught fan, a dry type air cooling unit, a water collecting device, a spraying pipe, an evaporative cooling unit and a circulating water tank are sequentially arranged in the outer shell from top to bottom, and the dry type air cooling unit is communicated with the evaporative cooling unit. A working medium can be led out after sequentially passing through the dry-type air cooling unit and the evaporative cooling unit, and a medium leading-out pipe communicated with the evaporative cooling unit is mounted on the outer shell; the fresh air channel is arranged between the dry-type air cooling unit and the water collecting device, so that outside air can penetrate through the electric shutter to enter the fresh air channel, newly introduced cold air and wet and hot air penetrating through the water collecting device are mixed to achieve the cooling purpose, the original logarithmic temperature difference of an air cooling section is improved, and the cooling efficiency is improved. Meanwhile, the total heat load of the evaporation section can be reduced, the water consumption of the evaporation section is reduced, and the total amount of water vapor entering the air cooling section is reduced.

The utility model discloses a conductive heat dissipation buffer gasket for a computer mainboard. The conductive heat dissipation buffer gasket comprises a silica gel protective film and a gasket main body assembly, the silica gel protective film is attached to the middle of the gasket body assembly. The gasket main body assembly comprises a silica gel block, a double-sided adhesive layer, a single-sided copper foil adhesive tape assembly and a single-sided mylar adhesive tape assembly; the silica gel block is attached to the silica gel protective film, the size of the silica gel block is smaller than that of the single-face copper foil adhesive tape assembly, and the silica gel block is located in the middle of the single-face copper foil adhesive tape assembly; the single-sided mylar adhesive tape assembly is arranged between the single-sided copper foil adhesive tape assemblies; a foam block is attached to the position, not provided with the silica gel block, of the single-face copper foil adhesive tape assembly. The buffer protection device has excellent conductive, heat dissipation, buffer and shielding functions, and can realize different buffer protection effects.

The utility model discloses a bearing wheel with a good heat dissipation function, and belongs to the technical field of bearing wheels. The bearing wheel with the good heat dissipation function comprises a wheel body and a wheel shaft, the wheel body is installed on the wheel shaft in a rotating mode, the wheel body comprises a wheel core and a wheel face arranged on the outer side of the wheel core, at least one end of the wheel core is provided with a heat dissipation ring capable of rotating along with the wheel body, and heat dissipation blades are arranged on the outer side of the heat dissipation ring. The heat dissipation blades are distributed in a spiral radial shape, and a spiral flow guide groove is formed between every two adjacent heat dissipation blades. According to the bearing wheel, the heat dissipation ring is arranged at the end of the wheel core, heat dissipation airflow is generated through the heat dissipation blades when the bearing wheel rotates, the heat dissipation performance of the bearing wheel is improved, the working temperature of the bearing wheel can be greatly reduced, the service life of the bearing wheel is prolonged, and the working stability of the bearing wheel is improved.

The utility model provides a buckling type liquid cooling radiator which is used for heat dissipation of a power device. The buckling type liquid cooling radiator comprises a fixing clip, a water pipe for liquid circulation and a detachable buckling body. The water pipe is partially accommodated in the buckling body; the side surface of the buckling body is attached to the power device for heat dissipation; the two ends of the fixing clip elastically abut against the power device so as to clamp the buckling body and the power device. Compared with the prior art, the buckling type liquid cooling radiator provided by the utility model has the advantages that the buckling body is arranged to be of a detachable structure so as to be convenient to disassemble and assemble, and the water pipe is partially accommodated in the buckling body so that the cooling liquid circulates from the inside of the buckling body, so that the side surface of the buckling body can be attached to a power device so as to dissipate heat; and a fixing clip is arranged to clamp the power device on the side surface of the buckling body and enable the buckling body to be in tight contact with the water pipe, so that good heat dissipation is ensured, and the buckling type liquid cooling radiator provided by the utility model is also convenient to disassemble and assemble while a good heat dissipation function is ensured.

The utility model discloses high -efficient server small -size transformer, including wire frame and core and winding coil on wire frame, and core passes wire frame, wire frame is horizontal, and the bottom of wire frame is equipped with base, and the side portion of base is provided with terminal, and the bottom of base is equipped with lead groove, core cooperation is in base, and the outgoing terminal of coil extends downward, and through lead groove, is connected with terminal. Coil outgoing terminal hides in lead groove of base bottom, and base is installed on circuit board, thus, the outgoing terminal of coil is hidden, avoids the outgoing terminal of coil to be influenced by external environment. Transformer structure can form the confluence of vertical airflow and horizontal airflow, is favorable to the ventilation heat dissipation of coil, and promotes efficiency.

In order to solve the problem that the PC panel adopted by the existing floodlight is not suitable for use in an oily air environment, the present invention proposes an intelligent module floodlight with an anti-oil function, which comprises: a U-shaped bracket 1, a connector 3, a light-emitting module 5, and a power supply assembly 7, characterized in that: the raised light-emitting module 5 also includes a glass panel 53 and a drainage ring 6, a circle of grooves is arranged on the inner side of the downward raised part 522, the glass panel 53 is fixed in the circle of grooves on the inner side of the downward raised part 522, the inner side of the drainage ring 6 is coated on the inner side of the downward raised part 522, and the outer side of the drainage ring 6 is embedded in the outer groove 523, and a plurality of screw holes are provided on the drainage ring 6, which just match the screw holes on the heat dissipation silicone ester layer 52, and are fixed by screws, so that the drainage ring 6 can be tightly combined with the heat dissipation silicone ester layer 52, so that external moisture cannot enter the interior of the light-emitting module 5.

The utility model relates to the technical field of protective devices, in particular to a photoelectric sensor protective device. The utility model provides a photoelectric sensor protection device with shock absorption and heat dissipation effects. A photoelectric sensor protection device comprises a sensor, a connecting wire, a main body box, a connecting hole plate, square rotating plates, a protection shell, a connecting cylinder, a mounting shell, a fan and the like, the main body box is slidably connected with the sensor, the sensor is fixedly connected with the connecting wire, the main body box is fixedly connected with the connecting hole plate, the main body box is rotatably connected with the paired square rotating plates, and the main body box is fixedly connected with the protection shell. The protective shell is slidably connected with a connecting cylinder, the main body box is fixedly connected with a mounting shell, and the mounting shell is rotatably connected with a longitudinally-distributed fan. The photoelectric sensor protection device has good damping effect and heat dissipation function through components such as the connecting cylinder and the fan, the photoelectric sensor can be better prevented from being damaged, and the protection effect of the photoelectric sensor protection device is enhanced.

The present invention provides a water-cooled energy storage container, including a box body, a battery assembly, a heat exchange assembly, and also includes: an air guide assembly, the air guide assembly includes: a first air inlet, connected to the second cavity to form a first air inlet channel; a second air inlet, connected to the second cavity to form a second air inlet channel; an exhaust port, connecting the second cavity with the external space of the box body; an air suction hood, having a first opening and a second opening, the first opening is connected to the second air inlet, and the second opening faces downward; a control assembly, including: a first sensor module, forming first flow data and second flow data; a control module, receiving the first flow data and the second flow data, forming a control instruction; a motor module, controlling the air suction hood to open or close the second opening. After adopting the above technical solution, even when the original air inlet is blocked by snow, it can operate at a low cost without changing the air intake and exhaust conditions.

The present application belongs to the technical field of household textiles, and particularly relates to a preparation method of cool microcapsules, cool polyester fiber fabric and a production method thereof. The preparation method of the cool microcapsules comprises the following steps: adding polymethyl methacrylate and an emulsifier into water to obtain a dispersion liquid; adding xylitol into the dispersion liquid to obtain a suspension liquid; and performing spray drying on the suspension liquid to obtain the cool microcapsules. In the present application, the xylitol is prepared into microcapsules, so that the technical problem that the xylitol is easily dissolved in water and the washability of the fabric is poor (i.e. the cool function rapidly decreases after washing) in the prior art is solved.

This invention discloses a safety monitoring device for university laboratories, belonging to the field of monitoring equipment technology. The invention includes a top frame, monitoring components, an electrical control box, a fire extinguishing component, and a heat dissipation component. Multiple monitoring components are arranged at the bottom of the top frame. The top frame rotates via a rotating mechanism and rises and falls via a lifting mechanism. Each monitoring component includes a mounting plate with a camera body fixed through its center. A support lug is provided at the top of the mounting plate. A crossbeam is integrally formed in the middle of the top frame. This invention enhances the security of the safety monitoring device by incorporating a fingerprint recognition module, a speaker, and various sensors. The fire extinguishing component provides fire-fighting capabilities, and the heat dissipation component improves heat dissipation, thus solving the problems of limited functionality and insufficient security in existing safety monitoring devices.

The present invention belongs to the technical field of extruders, and in particular to an automatic quantitative cold-feeding vertical extruder, comprising a frame and a three-plate four-column mold frame arranged on the top of the frame, the three-plate four-column mold frame being fixedly connected to the frame, an adjusting mechanism being arranged on the rear side of the three-plate four-column mold frame, the adjusting mechanism being fixedly connected to the three-plate four-column mold frame, and an automatic quantitative cold-feeding system for feeding being arranged on the top of the adjusting mechanism; by arranging the automatic quantitative cold-feeding vertical extruder, the designed stirring hopper and automatic cooling rotating hopper overcome the shortcomings of heat condensation and poor feeding of some materials during the processing process, increase the cooling and stirring functions outside the mold, ensure the continuous stability of powder material processing and feeding, and the accurate and stable PLC control system and the intuitive and easy-to-understand human-machine interface configuration are convenient for monitoring and tracing of production operations and production processes, and can effectively promote the popularization and application of new materials and new processes.

The present invention relates to a passive condensation tank cooling system of a passive auxiliary feedwater system and, more specifically, to a passive condensation tank cooling system of a passive auxiliary feedwater system, the cooling system having a passive condensation tank that includes an inner wall and an outer wall, having a cooling means interposed between the inner wall and the outer wall so that the temperature of heat-exchange water can be prevented from rising during condensation in the passive condensation tank, and thus the cooling performance of the passive auxiliary feedwater system can be improved, and being capable of contributing to the ensuring of a long-term cooling function during an extreme disaster accident. To this end, provided is the passive condensation tank cooling system of a passive auxiliary feedwater system, the cooling system comprising: the passive condensation tank having a water storage space in which the heat-exchange water is stored; and the passive auxiliary feedwater system including a condenser submerged in the heat-exchange water of the passive condensation tank, wherein the passive condensation tank includes: the outer wall for forming the outermost wall of the passive condensation tank; and the inner wall spaced from the outer wall to form the water storage space, and the cooling means capable of absorbing heat of the heat-exchange water is interposed between the outer wall and the inner wall.

The improved grinding cylinder comprises a grinding structure, the grinding structure is installed in a transmission structure, the transmission structure is installed in a magnetic structure, a cooling structure is installed on the peripheral side of the magnetic structure, the bottom end of the magnetic structure is connected with a driving structure, and the magnetic structure is connected with the driving structure. And a lifting structure is mounted on the driving structure. The magnetic stirring and grinding device has the beneficial effects that the grinding structure is arranged on the transmission structure, so that the grinding structure is used for grinding workpieces and driving grinding materials and grinding liquid through the magnetic structure and the driving structure, efficient magnetic stirring and grinding are carried out, and meanwhile, the interior of the magnetic stirring and grinding device has a better cooling function through the arranged cooling structure; the temperature rise caused by grinding friction is reduced, and the convenience of mounting and taking out the grinding structure is improved through the lifting structure.

The utility model discloses a variable adjusting structure for a hydraulic variable valve control mechanism, which comprises a motor, a shifting fork shaft, a shifting fork, a control valve sleeve, a control valve core and a valve core driving tappet, the control valve sleeve is arranged on the shifting fork shaft through the shifting fork, a straight groove is arranged on the shifting fork, a ball body is arranged on the control valve sleeve, and the valve core driving tappet is arranged on the ball body. The ball body slides in the straight groove; the shifting fork shaft is connected with a motor through a worm and gear mechanism; according to the multi-cylinder hydraulic variable valve control mechanism, the multi-cylinder hydraulic variable valve control mechanism is installed on the same shifting fork shaft through the shifting fork, variable adjustment of the multiple hydraulic variable valve control mechanisms is achieved through rotation of the shifting fork shaft, and compared with an existing one-cylinder and one-motor control mode, the structure of a control system is simplified, and meanwhile cost is reduced.

The utility model discloses a multi-output carbon dioxide cleaning device which comprises a base, a plurality of sets of supporting frames, a first carbon dioxide pressure transmitter and a first compressed air pressure transmitter, the supporting frames are installed on the upper end face of the inner side of the base, and the first carbon dioxide pressure transmitter and the first compressed air pressure transmitter are installed on the base. A first carbon dioxide pressure transmitter is arranged on the upper end face of the inner side of the base, and a first compressed air pressure transmitter is arranged on one side of the first carbon dioxide pressure transmitter. The equipment meets the requirement for complex product structure or large cleaning surface through multi-path carbon dioxide output, independent control and adjustment, compressed boosting gas and carbon dioxide diaphragm valve gas are independently input and adjusted, the phenomena of unstable air pressure and carbon dioxide spray interruption are avoided, the carbon dioxide flow and pressure are monitored in real time, and the cleaning efficiency is improved. Alarm feedback is given out when spraying is stopped or pressure is insufficient, independent heating control is achieved through boosting gas, condensate water generated by dry ice cleaning is avoided, and condensate water can be eliminated through auxiliary gas heating monitoring.

The present invention relates to the technical field related to encoders, and discloses an encoder suitable for extreme temperature environments, including a shell and an end cover sealed and connected to an opening of the shell, a through hole is provided in the center of the end cover, a first shaft sleeve is rotatably arranged in the through hole, the first shaft sleeve extends into the shell and is connected to a second shaft sleeve, the end cover has a first normal temperature cavity, a laser emitting component is arranged in the first normal temperature cavity, a temperature insulating annular cylinder is arranged in the inner cavity of the shell, the temperature insulating annular cylinder has an annular cavity, a transparent annular cover is sealed and arranged at the annular opening of the annular cavity, the transparent annular cover divides the inner cavity of the shell into a temperature-resistant cavity and a second normal temperature cavity, the temperature-resistant cavity is located between the first normal temperature cavity and the second normal temperature cavity, when the device switches to low temperature resistance, the internal circulation is started, part of the gas in the first normal temperature cavity passes through the air inlet, flows through the heating resistor wire, and flows back to the negative pressure gap through the second air outlet, the hot gas circulates back and forth in the first normal temperature cavity and the second normal temperature cavity, providing a good working temperature for the electronic components.