157 results about "Burning out" patented technology

The invention discloses a waste gas purification method, and belongs to the technical field of environmental protection. The method comprises the following steps: converting nitrogen-containing substances into NOO and adding the NOO into a high-temperature non-combustion area at the tail end of a hearth or the front end of a flue in combustion equipment, wherein fuel is burnt out; nO is cracked in the region to generate active free radicals; the free radicals oxidize NO in the flue gas to generate NO, and oxidize SOO, CO and VOCs to generate oxidation products; continuously cracking the generated NOs to form chain circulation; and the oxidation product is removed in a subsequent purification system. The NOs comprise pure NOs and dimers NO (nitrogen tetroxide) thereof, and NO is decomposed into NOs to participate in the reaction at high temperature. According to the invention, by optimizing the NO adding position, collaborative purification of multiple pollutants such as NOx, SOs, CO, VOCs and the like is realized, a reducing agent does not need to be added, ammonia escape is avoided, the investment and operation cost is low, and the method is particularly suitable for treatment of high-concentration CO and VOCs flue gas in industries such as coking and the like.

This invention discloses an electric tool. This electric tool solves the problem of motor overheating and burning out during prolonged operation of electric tools in related technologies. During operation, the electric tool utilizes a closed-loop current compensation control circuit formed by the motor, current conversion module, current compensation module, vector control module, and motor drive module. The current compensation module adjusts the reference current input to the vector control module to a minimum and make it adjustable. Furthermore, the closed-loop current compensation control circuit automatically adjusts the compensation current under different loads, effectively reducing bus current and phase current, thereby reducing motor overheating and protecting the motor and electric tool from damage due to excessive or unadjustable current.

The invention discloses a hot water circulating pump with couplings, and relates to the field of centrifugal pumps, the hot water circulating pump comprises a base, the top surface of the base is fixedly connected with a base plate, a protective cover, a first support and a pump body, and the end face of the pump body is provided with a machine seal gland. Therefore, maintenance cost is reduced, potential safety hazards are reduced, the coaxiality calibration process is simplified, repeated measurement and adjustment of the position of the motor are not needed, time and labor are saved, coaxiality can be guaranteed, overload protection can be achieved, overload burning of the motor can be avoided, safety accidents are reduced, the operation safety of the whole hot water circulation system is improved, and the service life of the hot water circulation system is prolonged. And overload protection can be adaptively changed according to the size of the motor, so that coaxiality calibration and overload protection adjustment are synchronously carried out, secondary measurement and adjustment are not needed, and the automation degree of the device is improved while time and labor are saved.

The utility model discloses an electric heating module which comprises an electric heating main body, a cavity is arranged in the electric heating main body, and an electric heating device used for heating liquid and a safety control device used for protecting the electric heating device from being burnt out due to overheating are arranged on the electric heating main body. An inlet mechanism and a discharge mechanism are arranged on the electric heating body, the inner end and the outer end of the inlet mechanism are higher than the inner surface and the outer surface of a cavity of the electric heating body respectively, and the inner end and the outer end of the discharge mechanism are higher than the inner surface and the outer surface of the cavity of the electric heating body respectively. The peripheral face of the blocking mechanism is of a cambered surface structure. The problem that dirt is easily generated and a pipeline is blocked when liquid is heated is solved, the user experience is improved, and better market competitiveness is achieved.

The utility model discloses a novel furnace body cloth wet type slag tapping gasification furnace which comprises a gasification furnace main body, a circulating water interlayer is arranged on the side face of the gasification furnace main body, a feeding hopper is arranged in the middle of the upper surface of the gasification furnace main body, a level gage is installed on the upper portion of the side face of the feeding hopper, and an auger is connected to the top of the feeding hopper. The furnace body cloth wet type deslagging gasification furnace is provided with an inner-layer and outer-layer interlayer structure, circulating water is introduced during operation, the temperature of the furnace body on one side of the hearth is effectively reduced, the furnace body is provided with an air inlet, air is blown to the air chamber through the fan, gas for gasification of raw materials in the furnace is met, air distribution is relatively uniform, deviant combustion cannot be generated, and the furnace body can be used for gasification of the raw materials in the furnace. The air pipe is cooled through circulating water in the circulating water interlayer, the temperature of an air outlet pipe opening is low, coking is not prone to occurring, and in conclusion, it can be known that the device can prevent the fire grate from slagging to block the air outlet, and the fire grate is prevented from being burnt out by high temperature.

The utility model discloses a smoking oven with adjustable smoke output, which relates to the field of aromatherapy ovens and comprises an oven body, the upper end of the oven body is provided with an opening, a smoke exhaust oven cover is detachably mounted in the opening, the bottom surface of the smoke exhaust oven cover is provided with an air supply component used for driving airflow to blow upwards, and an incense placing plate is arranged below the smoke exhaust oven cover. When the generated smoke is too large, the adjusting cover is installed on the upper surface of the smoke discharging furnace cover, at the moment, the air outlet grooves in the surfaces of the adjusting cover and the smoke discharging furnace cover are staggered, formed through holes become small, and then the smoke discharging amount is adjusted; after the incense coil is burnt out, the scraper at the lower end of the scraping rod is driven by rotating the scraping rod to abut against the surface of the incense containing plate, incense ash on the surface of the incense containing plate is scraped off, the ash is prevented from being attached to the furnace body in the whole cleaning process, the cleaning effect is clean and thorough, and practicability is improved.

The application discloses a kind of pressurized suction cooling type air float centrifugal air compressor and working method, the system includes air inlet pipeline, centrifugal impeller, exhaust volute, permanent magnet synchronous motor main shaft and shell, air float thrust disc, air float radial bearing, pressurized impeller and its air inlet pipeline, stator core and winding, fixed structure, motor cold air outlet ring cavity, suction pipeline and suction ring cavity, the main stream area and cold gas flow area structure of air float centrifugal air compressor are proposed in the application, for the problem that high-speed synchronous motor generates large amount of heat, small heat dissipation space, easy to burn out, on the basis of the main stream area and cold gas flow area structure of air float centrifugal air compressor, the technical scheme for solving pressurized cold gas and outlet suction air combination is proposed, the cold gas flow rate and flow can be maximized to ensure that the heat generated by high-speed synchronous motor design operating condition long time operation is taken out in time, to ensure the operation safety of entire unit.

The utility model provides a power supply circuit with current detection, a current detection circuit and an electronic overload protection system. The power supply circuit with current detection comprises a current sampling module, an overpower protection module and a power supply module. The power supply module is used for supplying power to the main control module according to the current on the current sampling module; and the overpower protection module is used for conducting when the current on the current sampling module exceeds a preset current threshold value so as to shunt the power supply module. According to the application, the over-power protection module is arranged, and the protection function of the over-power protection module is utilized, so that the over-power protection module can be conducted when the current on the current sampling module exceeds the preset current threshold value to shunt the power supply module, the generated heat can be reduced, the risk of burnout is reduced, and the service life is further prolonged.

The utility model discloses a connecting terminal with an open circuit protection structure, which comprises a base, a wire pressing terminal, a split terminal, a conductive metal piece, a contact piece and an elastic piece, the wire pressing terminal is arranged on the base and used for connecting a cable, the split terminal is arranged on the base and used for connecting an insertion end, the contact piece is rotatably arranged on the base through a first rotating shaft, and the conductive metal piece is arranged on the base. One part of the conductive metal piece is electrically connected with the wire pressing terminal, and the other part of the conductive metal piece is electrically connected with the contact piece through a soft wire; one end of the elastic piece is fixedly connected with the part, far away from the split terminal, of the contact piece, the other end of the elastic piece is relatively fixed with the line pressing terminal, and the elastic piece is in a stretched state. Circuit connection can be automatically disconnected when the internal temperature of the connection terminal is too high, the connection terminal is prevented from being burnt out due to temperature rise, and circuit safety is protected.

The utility model discloses a heat exchange cooling device which comprises an exploring tube, a pushing air cylinder and a control unit, the rear end of the exploring tube is respectively provided with a cooling liquid inlet and a cooling liquid outlet, and an air cooler, a liquid storage box and a water pump are sequentially connected between the cooling liquid outlet and the cooling liquid inlet through pipelines. A flow meter and a pressure sensor are installed in the pipeline, a temperature sensor is installed in the pipeline connected with the cooling liquid outlet, and the control unit is electrically connected with the flow meter, the pressure sensor and the temperature sensor on one hand, and is electrically connected with the pushing air cylinder and a draught fan of the air cooler on the other hand. Under the abnormal condition, the exploring tube can be withdrawn from the kiln in time, so that the risk that the exploring tube is burnt out is reduced, and a gas analysis device or a hearth flame monitoring device in the exploring tube can be prevented from being damaged.

The invention belongs to the technical field of intelligent locks, and particularly relates to a fireproof lock with a fireproof and fireproof structure, which comprises a door body, an intelligent lock is arranged on the door body, a T-shaped handle is arranged at the bottom end of a panel of the intelligent lock, and a display and keys are arranged at the top end of the panel of the intelligent lock. A square frame is fixed to the top end of a panel of the intelligent lock through a first mounting assembly, a displayer and keys are located in the square frame, one end of the square frame is slidably connected with a sealing plate through a connecting assembly, a box body is fixed to the bottom end of the panel of the intelligent lock through a second mounting assembly, and a T-shaped handle is located in the box body. According to the intelligent lock, by arranging the square frame and the sealing plate, the panel of the intelligent lock can be prevented from being burnt out when a fire disaster occurs, the service life of the intelligent lock is prolonged, and meanwhile, under the normal condition, the panel of the intelligent lock can be protected, and the phenomena that the panel is damaged by collision and the like are avoided.

The utility model relates to electrical system technical field discloses a kind of energy storage devices, it at least includes the first shell and second shell arranged along gravity direction, and the first shell and second shell accommodate energy storage battery respectively.The first shell is equipped with first explosion venting component, and the second shell is equipped with second explosion venting component.The ratio of the communication distance between first explosion venting component and second explosion venting component and the distance of both in gravity direction is at least greater than 1.1, obstructs the transmission path of flame between first explosion venting component and second explosion venting component, avoids the flame of lower layer's explosion venting component to burn out upper layer's explosion venting component as far as possible, avoids the heat runaway of lower layer to spread to upper layer, reduces the risk of heat runaway of energy storage device spread.

The secondary combustion-supporting type energy-saving stove comprises a shell, the inner wall of the shell is fixedly connected with an inner sleeve, and the bottom of a connecting base is attached to the outer wall of the inner sleeve. The utility model relates to the technical field of stoves, in particular to a secondary combustion-supporting type energy-saving stove with a detachable furnace pipe, which realizes that a furnace pipe component is detached from the inside of an inner sleeve to be replaced through the matching among a clamping column, a vertical groove and a transverse groove, and solves the problems that when the existing stove works, the furnace pipe in the traditional stove is fixedly welded in a stove body, and the furnace pipe is difficult to replace. The problems that after the stove is used for a long time, the internal furnace of the stove is easy to burn out, the burnt-out furnace cannot be maintained, the stove is scrapped, and a brand new stove needs to be replaced are solved, and the problems that a traditional stove generally does not have a secondary combustion-supporting function, combustible gas released and decomposed from coal cannot be completely combusted, and the energy consumption is low are solved. And harmful gas is discharged into the atmosphere to cause pollution.

The invention relates to the field of carbon fiber preparation, and discloses a carbon fiber in-situ carbonization method which is characterized in that in the process of realizing PAN fiber pre-oxidation and carbonization in a tubular furnace, the PAN fiber is subjected to in-situ carbonization through the change of a carbonization boundary caused by the movement of a furnace plug; the effective pre-oxidized fibers between the pre-oxidized boundaries in the pre-oxidized process before the furnace plug moves are all located in the carbonization boundary entrainment, so that the phenomenon that the PAN fibers are burnt out in the carbonization process due to the influence of the carbonization process on the non-effective pre-oxidized fibers is avoided, and finally the carbon fibers in a fixed carbonization mode are obtained.

The application discloses a sludge incineration device and method for a rotary kiln with staged air distribution and flue gas recirculation, which sends sludge and primary air into the rotary kiln from the kiln head; sends secondary air from the kiln head to the ignition section of the rotary kiln; and sends recirculated flue gas from the kiln head to the stable combustion section of the rotary kiln. The staged air distribution can form an oxygen-deficient fuel-rich zone in the initial combustion stage to inhibit the generation of NO x ; and the remaining air required for combustion is sent in the form of secondary air in the later combustion stage to make the fuel burn out; the flue gas recirculation can moderately reduce the oxygen content in the furnace and strengthen the reducing atmosphere in the combustion zone, which is beneficial to further reducing the emission of NO x in the sludge incineration process. The application uses the staged air distribution and flue gas recirculation, not only reduces the emission of NO x , but also avoids the problem that the SNCR method commonly used in the denitration of the rotary kiln incinerator needs to add ammonia water and external equipment, thereby reducing the operation cost and having good economic efficiency and application prospect.

The utility model discloses a temperature control protection type heater, which relates to the technical field of heaters, and comprises a heater main body and a lifting structure for assisting in lifting the heater main body, the lifting structure comprises fixing plates, the fixing plates are arranged at the front end and the rear end of the heater main body, a cavity is formed in each fixing plate, and the heating device is arranged in the cavity. And electromagnets are installed on the two sides of the interior of the cavity, a sliding rod is transversely installed between the electromagnets, two magnetic blocks are slidably connected to the outer wall of the sliding rod, and the outer wall of the sliding rod between the magnetic blocks is sleeved with a telescopic spring. Under the counter-acting force of the fixed spring, the positioning rod pushes the push plate, and under the simultaneous action of the positioning rod and the push rod, the push plate pushes downwards to drive the heater main body to ascend, so that the heater main body is pulled out of a container, and at the moment, the heater main body can be taken down to stop heating, so that heating protection of the heater is realized by the structure, and the service life of the heater is prolonged. The heater is prevented from burning out the liquid.

A coating method comprising: an electrostatic coating step of electrostatically coating a metal object supported by a metal hanger grounded to the ground; and a laser irradiation step of, after removing the object from the hanger, burning out, by laser irradiation, a coating material having adhered in the electrostatic coating step to a contact portion, said contact portion being the portion of the hanger that was in contact with the object in the electrostatic coating step.　

This utility model discloses an electronic cigarette circuit and electronic cigarette with anti-self-starting mechanism. The circuit is disposed inside the electronic cigarette's body, which includes the body and a bottle, with a magnet inside the bottle. It includes a control module, a switching circuit, and an atomizer connected in sequence. The control module controls the switching circuit to operate normally based on whether it senses the magnetic force of the magnet, thereby controlling the atomizer to operate normally. This design avoids the problem of the heating element burning out, scorching, or breaking when the e-liquid bottle is not connected before vaping. Normal vaping can only be performed after the e-liquid bottle is connected. It also eliminates the risk of self-starting during transportation or storage.

This invention relates to the field of silica gel recycling technology, and discloses a crushing device and recycling method for recycling waste silica silica gel. The crushing device for recycling waste silica silica gel includes a support frame and a twin-shaft crusher. A mixing mechanism is provided on the upper part of the support frame for mixing silica gel and lubricating powder. The mixing mechanism includes a mixing chamber, which is fixedly connected to the upper part of the support frame. A feed inlet is fixedly connected to the side of the mixing chamber away from the twin-shaft crusher. Multiple rollers are rotatably connected inside the mixing chamber. This invention uses the mixing mechanism to evenly coat the strip-shaped waste silica gel with lubricating powder, thereby reducing the adhesion and accumulation of silica gel on the surface of the moving blades of the twin-shaft crusher due to softening and high viscosity. This not only reduces the operating load of the motor and avoids the risk of motor overheating, tripping, or burning out, but also maintains the sharpness of the moving blade teeth, ensuring stable shearing and tearing effects and preventing excessive compression and clumping of materials.

The utility model belongs to the field of carbonization furnaces, and provides a carbonization furnace with double furnace return air passages, which aims to solve the problems of air passage ignition, influence on production load, gas backflow and possible flash explosion in the traditional carbonization furnace structure process, and comprises a furnace body, and a cavity in the furnace body is a carbonization chamber. The lower part of the carbonization chamber is divided into a plurality of mutually independent coke discharge ports by partition walls; an upper gas passage and a lower gas passage which are independent are respectively arranged on the partition wall and the inner wall of the furnace body corresponding to the partition wall in height, a plurality of fire holes communicated with the carbonization chamber are respectively formed in the gas passages, the gas passages comprise an air passage and a gas passage, and the air passage is arranged above the gas passage in parallel. According to the utility model, returned coal gas and returned air respectively enter the carbonization furnace from the two independent air passages, so that the problems that mixed gas of air and coal gas exists in the air passages, a lattice wall is easily burnt out, or flash explosion is caused in a pipeline and the like are solved, the temperature in the carbonization furnace can be conveniently and automatically controlled and adjusted, and the heat utilization efficiency is improved.

The present invention provides a laser welding method in which the laser beam does not enter the gap between a pair of flat wires and burn out the coating. [Solution] In the first step, the tip of the first flat wire 71L is melted by irradiating the center of the first tip surface of the first flat wire 71L with the first laser beam LB, thereby forming a first molten portion 72L on the first flat wire 71L. In the second step, the tip of the second flat wire 71R is melted by irradiating the center of the second tip surface of the second flat wire 71R with the second laser beam LB, thereby forming a second molten portion 72R on the second flat wire 71R. The irradiation start position of the third laser beam LB is set to a position on the surface of the second molten portion 72R that is shifted outward from the center of the second tip surface. In the third step, the third laser beam LB is moved from the irradiation start position toward the first molten portion 72L.

The invention discloses a liquid cooling unit, a pipeline switching method thereof and an energy storage converter, the liquid cooling unit is provided with a cooling liquid cache box with a gravity liquid supplementing and expansion tank two-in-one function, the cooling liquid cache box is communicated with a main pipeline through a liquid adding port and a liquid returning port, and corresponding branch valves are arranged on the two branch pipelines; a main pipeline valve is arranged between a first liquid passing opening and a second liquid passing opening which are used for connecting the cooling liquid temporary storage box and the main pipeline, so that the valve assembly can be in different states, the connection relation between the cooling liquid temporary storage box and the main pipeline can be switched among parallel connection, cut-off and series connection, the requirements of different scenes and working conditions of the liquid cooling unit are met, and the working efficiency is improved. During normal operation, reliable and automatic liquid supplementing can be achieved, liquid can be conveniently added when the liquid level of the liquid supplementing box is low, and the problem that a circulating pump is burnt out during rapid liquid injection is not prone to occurring.

The utility model belongs to the technical field of circuit board drilling, and particularly relates to a multilayer circuit board drilling device which comprises a bottom plate. Supporting frames are fixedly connected to the two sides of the top of the bottom plate. The side walls of the bottoms of the multiple supporting frames are fixedly connected with a first linear driver. A second linear driver is fixedly connected to a sliding block on the side wall of the first linear driver. A connecting block is fixedly connected to a sliding block on the side wall of the second linear driving machine. The side wall of the connecting block is fixedly connected with a third linear driver. A fixing block is fixedly connected to a sliding block on the side wall of the third linear driver. The bottom of the fixed block is fixedly connected with an electric drill; a condensation box is installed on the side wall of the end of the electric drill. The middle part of the condensation box is hollowed out; when the multi-layer circuit board is drilled by the electric drill, the phenomenon of heating and hot burning can occur, and the circuit board can be burnt out and even melted due to overhigh temperature, so that the electric drill can be cooled by the condensation box mounted on the side wall of the electric drill, and the influence of the temperature generated by the electric drill on the multi-layer circuit board is reduced.

The utility model provides an energy-saving cloth drying oven which comprises a drying oven body used for drying cloth, openings are formed in the two sides of the drying oven body, three guide rollers used for guiding the cloth are rotationally connected to the inner walls of the front side and the rear side of the drying oven body, a plurality of heating pipes are arranged in the drying oven body, and the heating pipes are arranged on the inner walls of the front side and the rear side of the drying oven body. A distance adjusting mechanism is arranged between the heating pipe and the drying box. According to the energy-saving cloth drying oven, the distance between the heating pipe and cloth can be adjusted, so that the heating temperature is appropriate, the situation that the cloth is burnt out due to the too short distance and more energy is consumed due to the fact that the drying efficiency is reduced due to the too long distance is avoided, moisture in hot air can be absorbed through the water absorption sponge, and the drying efficiency is improved. The situation that water vapor in hot air is blown to the cloth again, and consequently the drying effect and efficiency are reduced is avoided, water in the water absorption sponge can be extruded out regularly, the water absorption effect of the water absorption sponge is guaranteed, and the dehumidification effect is improved.

The utility model belongs to the technical field of safe electricity utilization, and particularly relates to a safe electricity utilization device which comprises a shell, a baffle and a protective cylinder, the baffle is fixedly connected to the outer side of the shell, the protective cylinder is arranged on the inner side of the baffle, a communicating pipe is movably inserted into the inner side of the baffle and penetrates through the inner wall of the protective cylinder, a through hole is formed in the inner wall of the protective cylinder, and the through hole is communicated with the baffle. The heat dissipation device is used for dissipating heat in the pile casing, and the inner wall of the pile casing is sleeved with a protection assembly. According to the utility model, through the arrangement of the gas spring, the telescopic end of the gas spring can contract, so that the sleeve can move upwards for a certain distance to counteract part of pulling force, and meanwhile, by matching with the use of the rubber gasket, large friction force can be generated between the sleeve and a line sheath to counteract the residual pulling force; therefore, the circuit on the inner side of the air switch is prevented from loosening when the circuit pulling space is insufficient or the pulling force is too large, the wiring position of the circuit is prevented from loosening, and the air switch is prevented from being burnt out.

1. The name of the design product: resistance (constant voltage module). 2. The use of the design product: by connecting the resistance in series in the circuit, the current size in the circuit is limited, and other elements in the circuit are protected from being damaged by excessive current. For example, in the LED lighting circuit, a suitable resistance needs to be connected in series to limit the current flowing through the LED to prevent it from being burned out due to excessive current. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view. 5. No design points, omit other views.

The utility model discloses a display module and display device. One embodiment of the display module includes: a first substrate, the first substrate includes oppositely arranged first surface and second surface, an electrostatic discharge layer on the second surface, and a drive circuit board, wherein the drive circuit board includes a first binding part and a second binding part, the first binding part is bound to the first surface, and the second binding part is attached to the surface of the electrostatic discharge layer away from the first substrate. The display module of the utility model sets up the electrostatic discharge layer on the second surface of the first substrate, and the structure of the drive circuit board is designed, the static electricity generated on the surface of the first substrate is conducted to the electrostatic discharge layer, the static electricity is released through the second binding part from the electrostatic discharge layer to the second binding part, the static electricity is avoided to burn out the drive signal line of the first substrate and cause black screen defect, and the internal voltage of the display module is avoided to be influenced by the static electricity and cause the remaining display abnormality and other defects.

The application provides an electric roller for logistics sorting, and relates to the field of material transportation. The electric roller for logistics sorting comprises a roller main body, the roller main body comprises an outer layer cylinder and an inner layer cylinder, the inner side of the outer layer cylinder is fixedly provided with a protruding block in contact with the inner layer cylinder, an arc-shaped plate is rotatably arranged in the slot of the inner layer cylinder, one end of the arc-shaped plate is in contact with the outer layer cylinder, an oil cylinder for containing hydraulic oil is fixedly arranged in the inner layer cylinder, and the outer side of the oil cylinder is communicated with a hydraulic pipe. The electric roller for logistics sorting is linked through the protruding block, the arc-shaped plate, the hydraulic pressure and the sliding piece. The heavier the goods are, the closer the sliding piece is to the end of the moment piece, the greater the force arm is, and the more labor-saving the driving is. The problem that the fixed parameters of the traditional electric roller are difficult to adapt to heavy loads is solved, the motor is prevented from being overloaded and burned out, the gradual sliding of the protruding block along the arc-shaped plate is realized, the heavy load instantaneous impact is offset through the hydraulic buffer, no additional weighing equipment needs to be additionally arranged, and subsequent sorting is facilitated.

The utility model provides a heat dissipation structure of an annular wire coil, and relates to the induction cooker technology, in particular to the heat dissipation structure of the annular wire coil, which comprises an annular support structure and two closed structures arranged in pairs, and the two closed structures are respectively arranged on two sides of the support structure. The closed structure and the supporting structure are mutually spliced to jointly form an annular air duct; two through openings are formed in the outer side wall of one closed structure, and a fan communicated with the other through opening is installed in the other through opening. The fan introduces outside cold air into the annular air duct through the through opening, and meanwhile, the annular air duct guides heat accumulated between the two closed structures to the other through opening to be discharged; through the annular air duct structure, heat can be quickly discharged from the closed structure, so that the heat dissipation efficiency of the annular wire coil is improved; therefore, the problem that the working performance of the annular wire coil is affected by rapid temperature rise caused by heat accumulation in the machine shell is avoided, and the problem that the annular wire coil is burnt out possibly due to overheating is also prevented.

The utility model relates to the technical field of notebook computer heat dissipation supports, in particular to a low-noise large-air-volume saucer-shaped fan applied to a notebook computer heat dissipation support, which comprises a fan frame, a mounting assembly, a cleaning assembly and a heat dissipation assembly, the mounting assembly comprises extension blocks, the two extension blocks are fixed at the lower end of the fan frame, a base is arranged below the fan frame, and the cleaning assembly is arranged on the base. Two extending blocks are arranged in the fan frame, three positioning bolts are arranged in each extending block in a threaded mode, the lower ends of the positioning bolts are arranged in the extending blocks in a threaded mode, two pairs of sliding grooves are formed in the inner side of the fan frame, and two pairs of sliding blocks are fixedly arranged above the base. The top cover is rotated to enable the cleaning brush to clean the fan frame, dust in the fan frame is cleaned, influences on work of electronic elements in the fan are prevented, heat dissipation is conducted on the interior of the fan frame through cooperation of the rectangular holes, the heat dissipation holes and the heat dissipation blocks, and the electronic elements in the fan are prevented from being burnt out.