191results about How to "Solve the cooling problem" patented technology

The invention discloses a power MOSFET and a preparation method thereof, and belongs to the technical field of microelectronics. The power MOSFET comprises a substrate layer, an AlN buffer layer, a Ga2O3 buffer layer and a Ga2O3 epitaxial layer which are arranged from bottom to top, wherein the top surface of the Ga2O3 epitaxial layer is provided with a groove, and an oxide isolation layer is arranged in the groove; the drain electrode is arranged on one side of the Ga2O3 epitaxial layer and is adjacent to the oxide isolation layer; the source electrode is arranged in the middle area of the other side of the Ga2O3 epitaxial layer; second grooves are formed in the two sides of the source electrode; a NiO layer and an insulated gate dielectric layer are arranged on the second groove from bottom to top; a gate electrode with a non-planar gate structure is arranged on the insulated gate dielectric layer; and a gap part around the second groove and the gate electrode is filled with a first oxide isolation layer. Through structural design and material selection, the problems of serious heat dissipation and gate electrode electric leakage of existing similar devices are solved, and the voltage withstanding performance of the device is improved.

The utility model discloses a liquid crystal display module and electronic equipment, and belongs to the technical field of display. The liquid crystal display module comprises an upper iron frame, an FOG glass assembly, a middle frame, a backlight source and a lower aluminum alloy die casting. The lower aluminum alloy die casting is used for bearing a backlight source, and the back face of the lower aluminum alloy die casting is provided with a hollowed-out structure. The middle frame is used for fixing the backlight membrane material and bearing the FOG glass assembly; the lower aluminum alloy die casting is connected with the middle frame and the upper iron frame through buckles. According to the liquid crystal display module and the electronic equipment provided by the embodiment of the invention, the heat dissipation capability of the liquid crystal display module with medium and large sizes can be improved by improving the material and the structure, and the problems that a backlight LED light bar is lighted and emits heat, an element assembly on an FPC emits heat due to power consumption, and an LCD and an IC emit heat due to power consumption are solved; therefore, the problem of difficulty in heat dissipation of the large and medium-sized liquid crystal display module is solved.

The utility model discloses a moistureproof ventilation pump house, which relates to the technical field of pump houses and comprises a fire water tank and a pump house, ventilation mechanisms are arranged at two opposite ends of the pump house, and a telescopic communication mechanism is arranged on the upper end face of the pump house. According to the moisture-proof ventilation pump room, the ventilation mechanism capable of achieving two-way ventilation is arranged to solve the problems of moisture, heat dissipation and the like in the pump room, the communication mechanism can be lifted to be opened or kept closed according to needs, the interior of the pump room communicates with the outside after being lifted to be opened, air flow in the pump room is accelerated, and the ventilation effect is improved. And the heat dissipation operation on the equipment in the pump room is further realized.

The cable branch box comprises a box body, the box body is divided into an upper cavity and a lower cavity, a trapezoidal opening is formed in the front end of the upper cavity, a trapezoidal box door is hinged to the trapezoidal opening, a mounting plate is arranged in the upper cavity, three mounting holes are formed in the mounting plate, two-way sleeves are inserted into the three mounting holes, and the two-way sleeves are connected with the trapezoidal box door. One side of the upper cavity is provided with an electrified display and a grounding end, outgoing lines of the three bidirectional sleeves are bound into a whole through a winding pipe and are connected with a connecting line of the electrified display, a grounding line of the electrified display is connected with the grounding end, and the bottom of the lower cavity of the box body is provided with line outlet holes corresponding to the bidirectional sleeves in position. The cable branch box has remarkable advantages in the aspects of design and application of the cable branch box, and a more efficient and safer solution is provided for cable branch connection and monitoring.

The invention discloses an air-liquid mixed heat dissipation device of a high-performance computer inserted and pasted mixed layout mainboard, which comprises a support structure for fixing the mainboard and a heat dissipation suite, and the heat dissipation suite comprises a liquid cooling circulation pipeline with a liquid inlet and a liquid outlet. An upstream pipeline and a downstream pipeline of the liquid cooling circulation pipeline are provided with a plurality of branch pipelines which are connected in parallel, liquid cooling plates used for dissipating heat of chips on the mainboard are arranged on the branch pipelines in series, and cold conduction strips used for dissipating heat of components on the mainboard are further installed on the branch pipelines. The two sides of the supporting structure are provided with air channels used for air cooling and heat dissipation of the memory bank, the liquid cooling plate is installed on the main board in an inserted mode and located on the upper side of the chip, and the cold conduction strip is attached to the upper side of a component of the main board. The invention aims to realize the air-liquid mixed heat dissipation structure of the high-performance computer inserted and pasted mixed layout mainboard, and solves the heat dissipation problem and the maintenance problem under the condition of high-density assembly.

The invention discloses a silicon-free polyurethane heat-conducting gel and a preparation method thereof. The silicon-free polyurethane heat-conducting gel comprises a first component and a second component, the first component is prepared from the following components in parts by weight: 0.5 to 2.5 parts of first polyether polyol, 3 to 4.5 parts of first polyester polyol, 0.4 to 0.6 part of a molecular sieve, 0.05 to 0.1 part of a catalyst, 0.3 to 0.5 part of an antioxidant, 0.3 to 0.5 part of a first wetting dispersant and 92 to 94 parts of heat-conducting filler; the second component is prepared from the following components in parts by weight: 1 to 2 parts of second polyether polyol, 0.5 to 1.5 parts of second polyester polyol, 3 to 5 parts of isocyanate, 0.1 to 0.2 part of water removal agent, 0.3 to 0.5 part of second wetting dispersant and 92 to 94 parts of heat conduction filler. The invention provides the silicone-free polyurethane heat-conducting gel which does not contain organosilicone, and the silicone-free polyurethane heat-conducting gel has heat conductivity, flexibility, high temperature resistance, aging resistance and environmental friendliness.

The utility model discloses a CO catalytic oxidation reactor which comprises a reactor shell and a reactor top cover arranged on the top face of the reactor shell, a partition is fixedly arranged in the middle of the reactor shell, and a right air chamber and a left air chamber are arranged in the reactor shell and located on the two sides of the partition respectively. Module bases are arranged in the right gas chamber and the left gas chamber, catalyst modules are arranged on the top surfaces of the module bases, each catalyst module comprises a catalyst assembly frame, and a plurality of catalyst elements are arranged in each catalyst assembly frame. According to the CO catalytic oxidation reactor, a double-air-chamber series connection structure is adopted, air enters the right air chamber, air exits the left air chamber and is separated through the partition, flue gas flows through the catalyst module to form an inverted-U-shaped route so as to carry out catalytic reaction, the catalyst module is assembled and arranged so that a catalyst can be conveniently replaced, the height of the reactor is reduced as much as possible, and the service life of the reactor is prolonged. And the sealing performance and the heat preservation performance of the device are improved.

The utility model discloses a kind of heat pipe control inclined sky light, it is related to sky light technical field, including shell, face frame, mist blue diffusion plate, light source and radiator, the shell bottom is equipped with window, the radiator is embedded in window and outer surface is flush with shell outer contour, constitute the part of complete outer surface of shell;The shell has oblique outer convex side wall part, and the side wall part forms non-perpendicular angle with mist blue diffusion plate;The heat pipe control inclined sky light further includes warning component, it is located in the inside of the oblique outer convex side wall part, and includes: warning light source passage, the color change card movably arranged in warning light source passage, the drive part of driving color change card movement.This heat pipe control inclined sky light can improve heat dissipation efficiency, realize high temperature automatic warning and reduce the advantages of security risk.

The utility model relates to back adhesive technology field discloses the heat dissipation type breathable back adhesive, including polyester film, the polyester film top is provided with the heat conducting filler layer, is provided with the adhesive layer one between heat conducting filler layer with polyester film, heat conducting filler layer top is provided with graphite sheet, graphite sheet top is provided with the breathable microporous structure layer, the breathable microporous structure layer top is provided with adhesive layer two, heat conducting filler layer inside includes graphite sheet and boron nitride powder, graphite sheet with boron nitride powder is pasted together. In the utility model, through the high heat conduction performance of graphite sheet and boron nitride powder, the heat is conducted fast, and the intercommunication micropore of breathable microporous structure layer lets the air circulation and carries away the heat, and the heat dissipation problem is solved efficiently. The adhesive layer guarantees the close connection of each layer, maintains the stable overall structure, finally makes the object of being pasted stable operation under the suitable temperature, guarantees the normal use of relevant equipment or product.

This utility model discloses a novel composite heat exchange vehicle-mounted refrigerator, relating to the field of vehicle-mounted refrigeration technology. It includes a housing, a novel composite heat exchange system, and a control system. The novel composite heat exchange system includes: a main refrigeration unit, utilizing a cold source and a cold storage medium within an energy storage body for refrigeration or cold storage; and a secondary refrigeration unit, including a semiconductor refrigeration element. The cold end of the semiconductor refrigeration element is coupled to the system's airflow path or energy storage body to provide supplementary or deep refrigeration, while its hot end dissipates heat through a heat dissipation structure. The heat dissipation structure is immersed in the cold storage medium, utilizing the cold storage medium to absorb heat from the hot end. This utility model, by combining the main refrigeration unit and the secondary refrigeration unit and optimizing the thermal management of the secondary refrigeration unit, achieves stronger refrigeration capacity and can meet lower refrigeration temperature requirements.

The application belongs to the technical field of switches and discloses a dustproof and moistureproof sealing device for a communication switch port, which comprises a switch body, a sealing cover is arranged at the tail end of the switch body, and mounting legs are welded at the opening end of the sealing cover. The application is provided with a filter assembly with a flange joint on the sealing cover. Moisture and impurities in external air are adsorbed by activated carbon filter screens and desiccants filled in the hollow cylinder, and the activated carbon filter screens and the desiccants are connected with the flange joint through an external air outlet pipeline of a blowing equipment. The moisture and impurities are adsorbed, and a dustproof screen is used as an air vent to satisfy the drying and purification of air before the air enters the sealing cover. The dust accumulation and moisture erosion of the port are greatly reduced, and the heat dissipation problem of the tail end of the switch after the sealing cover is installed is solved. In combination with a rubber sealing ring at the tail end of the switch body and the sealing cover, the short board of the existing protection means in dustproof and moistureproof is solved.

The utility model provides a loudspeaker structure based on vibration sound transmission, which relates to the technical field of electroacoustic conversion devices, and comprises an upper cover assembly, a voice coil assembly, a magnetic circuit assembly and a lower cover assembly, and the surface of the upper cover assembly is provided with a heat dissipation hole I, a positioning hole and a fixing hole. According to the utility model, the magnetic circuit assembly and the voice coil assembly which are modularly designed are matched, an innovative structure that the voice coil is fixed and the magnetic circuit is movable is adopted, an electric signal is directly converted into mechanical vibration to be conducted to a human body, effective conversion from a sound signal to somatosensory vibration is realized, and the limitation that a traditional loudspeaker can only transmit sound waves through air is overcome; the heat dissipation holes and the ventilation grooves arranged in the upper and lower cover assemblies form convection heat dissipation channels, the heat conduction performance of the metal heat dissipation fins is matched, the heat dissipation problem during working of the vibration horn is effectively solved, long-time stable operation of equipment is guaranteed, meanwhile, the elastic supporting structure of the elastic pieces is utilized, vibration loss is reduced, and vibration conduction efficiency is improved.

The utility model provides a direct insertion type nine-pin half-bridge module device with NTC (Negative Temperature Coefficient). The direct insertion type nine-pin half-bridge module device is characterized in that pins are arranged on a packaging body; the G pole of the first MOSFET chip is connected to the first pin, the KS pole of the first MOSFET chip is connected to the second pin, and the S pole of the first MOSFET chip and the D pole of the second MO SFET chip are connected to the third pin; the D pole of the first MOSFET chip is connected to the fourth pin; the S pole of the second MOSFET chip is connected to the fifth pin; the KS pole of the second MOSFET chip is connected to the sixth pin; the G pole of the second MOSFET chip is connected to the seventh pin; the NTC thermistor is connected with the eighth pin and the ninth pin. The first MOSFET chip, the second MOS FET chip and the NTC thermistor are arranged in the packaging body; the circuit design can be simplified, the system size is reduced, the cost is reduced, and the heat dissipation problem is effectively solved.

This invention belongs to the field of space laser communication and deep space exploration technology, and discloses an integrated detection device for space laser communication monitoring and interaction. The device includes a main body, on which are integrated a solar panel, a navigation imaging device, a communication antenna, a communication receiver, a radar, a landing support, and functional components for communication monitoring, environmental perception, and interactive operation. This invention forms a closed-loop system through electrical, signal, and mechanical connections, enabling simultaneous execution of multiple tasks, significantly improving the device's space operation efficiency, reducing the load pressure on space launch vehicles, and adapting to the space constraints of on-orbit operations. The communication antenna and receiver achieve bidirectional signal interaction through a high-speed laser communication module and are linked with the navigation imaging device and environmental sensors to ensure stable transmission and status monitoring of laser communication signals, which is beneficial for practical applications and operations.

The utility model discloses a quick cooling device for white spirit production, and particularly relates to the technical field of white spirit production cooling, which comprises a support frame, and auxiliary cooling devices for white spirit production are mounted at the upper end and the lower end of the support frame; an operation controller is installed at the front end of the supporting frame, and the auxiliary cooling device for white spirit production comprises a cooling assembly and an accelerated cooling circulation assembly. Compared with the prior art, the quick cooling device for white spirit production has the advantages that cooled water flows into the cooling water accommodating groove, so that white spirit can be cooled and passes through the outer wall of the barrel, and the temperature of a white spirit body in the barrel can be reduced; according to the device, low-temperature water enters the cooling water containing groove to reduce the temperature of a liquor body in the liquor cooling passing barrel, the liquor body cooling problem is effectively solved, cooling is conducted through water circulation, and the cooling and environment-friendly performance of the whole device is greatly improved.

The application belongs to the chip packaging technical field, and particularly relates to a running control method based on a heterogeneous optoelectronic chip, steps of which are as follows: S101, obtaining a task quantity of a to-be-calculated task; and judging whether the task quantity is greater than a set first calculation threshold; when the judgment result of step S101 is yes, then step S102 is executed, that is, a type one photonic chip is recommended for the to-be-calculated task to execute calculation; when the judgment result of step S101 is no, then step S103 is executed, that is, a recommended calculation time consumption of the to-be-calculated task is obtained, and whether the recommended calculation time consumption of the to-be-calculated task is less than a set time length is judged; when the judgment result of step S103 is yes, then step S104 is executed, that is, a type two photonic chip is recommended for the to-be-calculated task to execute calculation; when the judgment result of step S103 is no, then step S102 is executed. The control method can realize flexible switching and stable high-speed running of the optoelectronic chip in an extreme environment.

This invention provides a liquid metal-based thermal grease, its preparation method, and its application. The liquid metal-based thermal grease comprises the following raw materials in parts by weight: 100 parts liquid metal, 2-5 parts silicone oil, 0.1-20 parts thermally conductive powder filler, and 0.1-3 parts other additives. The high-reliability liquid metal-based thermal grease provided by this invention possesses excellent high thermal conductivity, high processability, and high reliability. It can replace traditional thermal grease to solve the heat dissipation and cooling problem of high-power chips, thereby extending the lifespan of electronic products.

This invention provides the application of a mixture of methylstyrene with high para-isomer content in the preparation of polystyrene substitute copolymers, belonging to the field of polymer material synthesis technology. This invention is the first to directly utilize a low-cost mixture of methylstyrene isomers to replace high-purity styrene. Through a "boiling-condensation" cycle in the fluidized bed polymerization process, efficient and constant-temperature heat dissipation is achieved, effectively overcoming the heat transfer difficulties and temperature runaway risks of traditional bulk polymerization. This facilitates control of the polymerization mechanism and yields random copolymers with a narrow molecular weight distribution and mechanical properties comparable to general-purpose polystyrene. This method is simple and controllable, significantly reduces raw material costs, and combines economic benefits with environmental value. The resulting copolymers can be used in general plastics, packaging materials, and other fields.

The utility model belongs to the field of high -power test equipment especially relates to a heat pipe radiator for test equipment, including heat conduction matrix, heat pipe, heat dissipation matrix, heat conduction matrix is connected with heat dissipation matrix, it is equipped with a plurality of through -hole in the middle heat conduction matrix, the fixed connection of heat pipe has on heat dissipation matrix, the evaporation section of heat pipe is close to heat conduction matrix, the fixed connection of a plurality of radiating fins has on heat dissipation matrix, and the condensation section of radiating fin is close to heat pipe. Advantage is: has high -efficient heat dissipation, good dustproof, space utilization high -efficient, the advantage that heat is conducted downward, can effectively solve the heat dissipation problem of high -power test power supply equipment under special working condition, improves the operating stability and life of equipment.

The application provides an LED straight tube lamp, comprising: a lamp tube, the lamp tube comprising a diffusion coating covering the inner circumferential surface of the lamp tube; a lamp cap arranged at one end of the lamp tube; a lamp plate arranged in the lamp tube, the lamp plate being provided with a light source; a power supply, the power supply being in electrical communication with the light source through the lamp plate, the power supply comprising a circuit board and a power supply module arranged on the circuit board; the lamp plate is a flexible circuit board or a flexible substrate, the lamp plate having a part fixed on the inner circumferential surface of the lamp tube and a part located at both ends of the lamp plate and not fixed on the inner circumferential surface of the lamp tube, wherein the part not fixed on the inner circumferential surface of the lamp tube forms a free part, one end of the free part is deformed by being contracted towards the inside of the lamp tube, and the free part is directly welded to the circuit board of the power supply, the free part being an integral part of the flexible circuit board or the flexible substrate.

The application discloses a heat dissipation structure of an outdoor device and a centralized inverter integrated machine. The copper bar connected between an inverter and a transformer is connected with an internal cavity of an alternating current side of the inverter, heat generated by the copper bar is discharged to the inverter, and the heat exchanger in the inverter is used to discharge waste heat to the external environment. The heat dissipation problem of the copper bar connected between the inverter and the transformer and the connecting cavity is solved, and the cross-sectional size of the copper bar is reduced. The temperature of the copper bar connected between the inverter and the transformer and the connecting cavity is reduced, and the service life of internal devices is prolonged.

The utility model provides a kind of construction engineering construction temporary electricity protection box, belong to construction engineering construction equipment technical field, protection box includes box, door, protection mechanism and support structure, protection mechanism sets breathable side plate, its L-shaped breathable hole, top baffle, bottom butt sheet cooperate box clamping groove and water guide hole, and fixed by mounting piece and bolt, support structure sets support leg, support plate and reinforcing rib.The utility model solves the problems of insufficient rain and dust protection, poor heat dissipation and poor stability of existing protection boxes, and has the beneficial effects of stable structure, good rain and dust protection effect, efficient heat dissipation, easy installation and stable support.

The present invention provides a semi-separated BNCT neutron target system with a long life cycle, the neutron target system comprising: a functional component, the functional component comprising a continuous strip-shaped active layer and a bearing layer for bearing the active layer; one end of the functional component is mounted on an unwinding component, and the other end is mounted on a rewinding component, and a working area is formed between the unwinding component and the rewinding component, the working area being the incident area of ​​the incident particle line; an interception component, the interception component is located at the downstream side of the working area, and comprises a heat dissipation layer and a hydrogen storage layer arranged in contact with each other, the hydrogen storage layer is arranged opposite to one side of the bearing layer in the functional component, and contacts each other during the operation of the neutron target. The present invention solves the problem that the conventional fixed BNCT neutron target has a short service life, and the active layer separation caused by defects such as bubbling during use leads to the scrapping of the target.

The invention relates to a compact two-way direct current motor controller suitable for biaxial inertial navigation, and relates to the technical field of motor control. The controller comprises an upper-layer control board and a lower-layer driving board which are both 30mm * 40mm in size and are vertically butted through an inter-board connector. The control panel is used as a core and is responsible for algorithm execution and communication; the driving board takes two motor driving chips as a core and respectively drives two paths of direct-current brush motors. The control panel is powered by a single 5V power supply, and the voltage of the control panel is stabilized to 3.3 V through an LDO to supply power to the DSP. The control panel integrates two paths of RS422 differential serial ports, and has strong anti-interference communication capability. Through the innovative double-layer partition layout, large-current driving and a precise control circuit are physically isolated, the problems of heat dissipation and EMI in high-density design are solved, organic combination of low cost, miniaturization and high driving power (10A peak current driving capacity) is achieved, and the circuit is particularly suitable for automatic equipment with limited space.

The utility model relates to a phase shift rectifier transformer air duct, including insulating cylinder, comb-shaped stay, winding, coil outlet and air duct, comb-shaped stay is bonded on the outer surface of insulating cylinder, winding is wound on comb-shaped stay, the air duct is sleeved on the outer surface of comb-shaped stay, the air duct is provided with a plurality of air duct holes, the coil outlet of winding is led out through the air duct holes, and the air duct is connected with the insulating cylinder. Insulating glue is filled in a gap between the coil outlet head and the air duct head; the air duct is defined by one or more insulating plates, the inner clamping plate and the outer clamping plate are clamped on the two sides of the joint of the insulating plates, and the joint of the inner clamping plate, the joint of the outer clamping plate and the joint of the insulating plates are connected through bolts. And at the joint of the insulating plates, the mounting hole I of the insulating plate on one side is circular, and the mounting hole II of the insulating plate on the other side is oblong or elliptical. The special transformer solves the problem that an existing special transformer is poor in heat dissipation effect.

The application discloses a core cabin of a natural gas hydrate in-situ heat and pressure preserving coring device based on a gravity heat pipe, and belongs to the technical field of natural gas hydrate exploitation, and comprises a core cabin outer pipe assembly, wherein the core cabin outer pipe assembly comprises a first outer pipe, a second outer pipe, a third outer pipe, a fifth outer pipe, a sixth outer pipe and a seventh outer pipe which are sequentially connected from top to bottom, a chip removal groove is threadedly connected to the bottom of the seventh outer pipe, and a drill bit is threadedly connected to the bottom of the chip removal groove; the application uses thermoelectric refrigeration and heat pipe heat transfer principles to integrate a refrigeration mechanism on a hydrate coring device, breaks through the heat preservation technical bottleneck existing in conventional natural gas hydrate coring equipment and technology, and the integrated heat pipe enhanced heat transfer system solves the heat dissipation problem of the refrigeration mechanism of the coring device, so that the core in the core cabin of the coring device can keep the in-situ temperature, original and faithful samples are provided for reservoir evaluation and basic physical property research, and new equipment and technology are provided for marine natural gas hydrate heat and pressure preserving coring.

The utility model relates to the technical field of intelligent transportation, concretely relates to high -speed toll station vice node railing machine, including railing machine body, set up on railing machine body and show module of fee of snapshot module and, snapshot module and show module of fee set up in the one side of railing machine body front end facing the lane transaction area, be provided with communication module in the railing machine body, this communication module is used for with ETC lane antenna carries out data interaction, and the transaction data of lane antenna is received through communication module and is shown through show module of fee of railing machine body, the lower extreme of pole machine body is provided with base, and the fixed part of base and setting in the bottom of railing machine body is connected in sliding fit, and the bottom of base is the sliding fit connection of sliding slot and sliding rail, the utility model relates to a kind of high -speed toll station vice node railing machine, solve the problem that multiple stand, construction complex caused by traditional ETC lane snapshot and fee show device independent setting, railing machine is simultaneously realized convenient installation and position adjustment by sliding base.

The invention relates to the technical field of integrated inductors, and discloses an integrated high-power two-path power inductor and a processing mode thereof, the integrated high-power two-path power inductor comprises at least two inductance coils arranged in a magnetic core main body, and the at least two inductance coils share a middle column of the magnetic core main body; the magnetic core body is provided with an air gap acting on the inductance coils, the inductance coils comprise the first inductance coil and the second inductance coil, the first inductance coil is arranged on the first side column, the second inductance coil is arranged on the second side column, and the directions of magnetic circuit loops corresponding to the first inductance coil and the second inductance coil are the same. According to the high-power two-path power inductor with the integrated design and the processing mode thereof, the coil of the integrated inductor scheme of the structure is of a semi-open structure, the direct contact area with air in the surrounding space is large, heat dissipation is facilitated, therefore, the problem of coil heat dissipation can be effectively solved, the two side columns are synchronously processed, the consistency of air gaps of magnetic cores during batch production can be guaranteed, and the production efficiency is improved. And the problem of consistency of inductance parameters of two paths of inductors can be further solved.

The application discloses a 505 / 95R29 special high-load radial tire for nonferrous mine and a production process thereof, and relates to the technical field of tires. The application is characterized in that a concave V-shaped structure is arranged at the tire shoulder and the tire side, the transverse pattern groove of the tire tread extends to the tire side and is provided with a heat dissipation groove; the ring part is designed with full interference and is provided with anti-skid protrusions; a five-layer belt structure is adopted, the B1 belt layer is a two-piece small-angle split structure, and nylon reinforcing layers are arranged on both sides of the tire body. The application fills the design and development blank of the 505 / 95R29 special high-load radial tire for nonferrous mine by developing a new 505 / 95R29 special high-load radial tire for nonferrous mine and adopting a new production process, and solves the problems of insufficient load capacity of the current product of the large-tonnage wide-body vehicle and high failure.

The present invention discloses a safety protection device for a lithium battery pack, and relates to a field, including a protective shell and a power-off component, the power-off component including a first split block installed on a top cover, the top of the first split block is fixedly connected to a second split block, the first split block and the second split block are vertically arranged and the bottom ends are both conical, the power-off component is used to push the first split block and the second split block downward after the smoke alarm receives the smoke alarm, thereby pushing multiple groups of batteries in the lithium battery pack to the surroundings through the action of the first split block and the second split block, and after the spacing is expanded, the plug-in blocks are separated from each other and the power is cut off. The present invention can effectively protect the lithium battery pack safely by providing a power-off component, a sealing component and a fire-extinguishing component, and on this basis does not affect the normal heat dissipation of the lithium battery pack, thereby solving the problem that heat dissipation and safety protection cannot be taken into account in the prior art.