59results about How to "Reasonable heat dissipation" patented technology

The invention aims to provide a double-shaft double-motor ship ammonia-electricity hybrid power system with a fuel cell. The system comprises an ammonia fuel engine, a first reversible motor, a secondreversible motor, a third reversible motor, a diesel generator set, a storage battery, a super capacitor, a fuel cell, a propeller, a liquid ammonia storage and supply device, a power transformationdevice, a ship power grid, a ship load, a whole ship cooling system and an exhaust gas recirculation system. Hybrid propulsion of the ammonia fuel engine and the motor and coordinated power supply ofthe diesel generator set and the energy storage unit can be achieved. Meanwhile, multi-stage utilization of cold energy of the energy storage unit and the engine is achieved, waste gas of the fuel cell supplements gas for the waste gas turbine, the gas inlet efficiency is improved, ship energy consumption is reduced, the whole ship efficiency is improved, and the application range of the system iswidened.

A server is disclosed, including a case, a fan, power consumption component, thermosensitive element, air guide control module and air guide cover are arranged in the case, the power consumption component, the air guide cover and the fan are arranged in sequence in the longitudinal direction, the air guide cover is provided with an air duct communicating with the fan and the power consumption component, the thermosensitive element is arranged in correspondence with the power consuming element in the power consuming module and can detect the temperature of the corresponding power consuming element. The thermosensitive element is in signal connection with the air guide control module. The air guide control module is used for controlling the movement of the wind shield in the wind duct according to the detection result of the thermosensitive element to adjust the air volume blown to the corresponding power consuming element. In the server, the air quantity provided by the fan can be adjusted and distributed freely, so that the heat dissipation of the power consumption component in the case can be more balanced and reasonable, the distribution of the air volume can be more flexible, the air flow can be maximally utilized, and the unreasonable air flow loss can be avoided.

Disclosed in the invention is a power cabinet comprising a cabinet body formed by N independent cavities and an external cooling device arranged at the rear side of the cabinet body. Each cavity is provided with an inlet window and an air outlet; the air outlet is opposite to the external cooling device; and a temperature probe is also arranged inside each cavity. The external cooling device consists of a base plate, a support, an air box, a control box, and N exhausting units installed on the support; each exhausting unit corresponds to one air outlet; and the exhausting units include suction hoods, telescopic tubes I, L-shaped elbow pipes, telescopic tubes II, sliding blocks, and telescopic drivers. Compared with the prior art, the power cabinet has the following beneficial effects: no fan is arranged in the cabinet body and hot air inside the cabinet body is exhausted by the external cooling device; the draught fan as an air flow power unit is arranged isndie the external cooling device and a few part of vibration caused by the fan can be transmitted to the cabinet body, so that the influence caused by fan vibration is reduced and thus electrical equipment elements work normally. In addition, the invention also designs a cooling control method of the power cabinet.

The invention aims to provide a ship ammonia-electricity hybrid power system with a heat storage-cooling battery heat management system. The ship ammonia-electricity hybrid power system comprises an ammonia fuel engine, a reversible motor, a diesel generator set, a storage battery, a capacitor, a fuel battery, a propeller, a liquid ammonia storage and supply device, a power transformation device,a ship mainstream power grid, a ship load, a whole ship cooling system and a waste heat system. Hybrid propulsion of the ammonia fuel engine and the motor and coordinated power supply of the diesel generator set and the energy storage unit can be achieved, multi-stage utilization of cold energy of the energy storage unit and the engine is achieved, and the waste heat system can achieve multi-stageheat energy utilization and is integrated with the cooling system.

The invention discloses a multifunctional air compressor which comprises a machine case, an air inlet device, a motor, a pressurization air filter, a compressor, an oil-gas separator, a total heat recovery water heater and a centrifugal gas-liquid separator. The air inlet device, the motor, the pressurization air filter, the compressor, the oil-gas separator, the total heat recovery water heater and the centrifugal gas-liquid separator are arranged in the machine case. Air outside the machine case enters the machine case after dust filtering of a filter bag and noise elimination of a noise elimination pressure relief device, heat in the machine case is collected by a motor cooling heat collection cover and is conveyed into the pressurization air filter through a heat collection and air supply pipe, heat energy of gas and radiation heat energy of equipment are recycled, and cold oil is conveyed to the compressor through an oil return pipe after hot oil in a separator engine oil conveying pipe is cooled by the total heat recovery water heater. According to the multifunctional air compressor, three kinds of heat are recycled, the generated gas rises and is improved by more than 10 percent, gas input is smooth and small in resistance, the whole energy-saving equipment is arranged in the machine case, air for cooling is reduced, cooling electricity consumption is reduced, electricity used by the air compressor is less, and the energy efficiency ratio is high. The good vibration and noise reduction and cooling effects are achieved.

The invention discloses a double-layered fork-shaped radial gas hydrodynamic bearing based on a 3D printing technology. The double-layered fork-shaped radial gas hydrodynamic bearing is composed of two main elements including an integrated variable material bearing body (1) and a top-layer foil sheet (2), wherein the top-layer foil sheet (2) is of a thin-wall non-sealed annular structure, an outward stretching structure is formed at an opening of the top-layer foil sheet (2), and the top-layer foil sheet (2) is fixed with an inner fork-shaped structure of the integrated variable material bearing body (1) by welding or sticking. The integrated variable material bearing body (1) is integrally printed to be molded by applying the 3D printing technology, is a variable material distributed entity, and is mainly composed of four parts including an inner fork-shaped structure (3), an inner annular non-closed structure (4), an outer fork-shaped structure (5) and an outer annular closed structure (6) from inside to outside. A double-layered fork-shaped complicated structure of the bearing can meet relatively large rigidity and can obtain a relatively large bearing capability. The structure has deformation of a plurality of positions and has relatively large damping, and furthermore, relatively large coulomb damping exits between the inner layer fork shape structure and the top-layer foil sheet in a working process, so that the bearing has a relatively strong anti-impact capability. The double-layered fork-shaped radial gas hydrodynamic bearing has a plurality of hollow structures, so that materials are saved, the cost is reduced, the heat dissipation can also be increased, and the temperature rising of the bearing under high-speed running is reduced.

The application discloses a battery thermal management module, a battery module and a battery pack. The battery thermal management module comprises: a heat insulation module; two heat exchange modules, wherein the heat insulation module is clamped between the two heat exchange modules, and the heat exchange modules comprise heat exchange flow channels which are provided with flow inlets and flow outlets communicating with an external heat exchange system. The battery thermal management module can perform effective heat exchange with a battery monomer through a heat exchange medium in the heatexchange module to ensure the reasonable heat dissipation of the battery monomer and prevent the temperature of the battery monomer from too high, the heat insulation module can inhibit the diffusionof the heat when the battery monomer is out of thermal control to prevent the heat from being diffused to the whole battery module, improve the safety and the stability of the battery module and facilitate safe use for long time.

The invention discloses an LED lamp design verification method and LED lamp design verification method application to an externally-hung lamp or a headlamp. The design verification method includes the following steps that the structure of an LED lamp is determined, and the LED lamp and LED lamp beads are modeled; an LED lamp model and an LED lamp bead model are simplified; numerical simulation verification is performed on the simplified LED lamp model and the simplified LED lamp bead model; a conclusion is drawn, and whether heat-conduction arrangement and a heat-dissipation scheme of the LED lamp are practicable or not is determined. The conclusion is drawn through structure determination, modeling and numerical simulation solution, the LED lamp is structurally designed before being put into production, and the reasonable heat-conduction arrangement and the heat-dissipation scheme are obtained through performing simulation verification on heat and heat-dissipation requirements of all parts of the lamp in the working process; due to the efficient heat-dissipation design, the heat generated by a chip is conducted, effective exchange between the heat and the environment is performed, the heat of the LED lamp is reasonably dissipated when the LED lamp works, the LED chip works at a safe temperature, the lighting effect and reliability of the LED chip are improved, and the service life of the LED chip is prolonged.

The invention provides a temperature collection circuit and light receiving module and relates to the technical field of temperature collection. The temperature collection circuit comprises a temperature sensor, a signal amplification circuit, a temperature compensation circuit and a data storage device, wherein the temperature sensor is arranged on a trans-impedance amplifier so as to sense temperature of the trans-impedance amplifier and then generate electric signals; an input end of the signal amplification circuit is connected with an output end of the temperature sensor, and therefore the electric signals can be amplified; an input end of the temperature compensation circuit is connected with an output end of the signal amplification circuit, and therefore the amplified electric signals can be compensated; an input end of the data storage device is connected with an output end of the temperature compensation circuit, and therefore the compensated electric signals can be stored. Via the above arrangement, collected and stored temperature data can be used as a reference factor for heat dissipation of the trans-impedance amplifier, and therefore a problem that interference withwork of the trans-impedance amplifier is caused because unreasonable heat dissipation operation is performed on the trans-impedance amplifier based conventional technologies can be solved.

The invention relates to the related field of communication cabinets, and discloses a circulating heat dissipation device for an outdoor communication cabinet. The device comprises a main body box, wherein the main body box is internally provided with a fan cavity, the rear side of the fan cavity is communicated with an air inlet which extends backwards to be communicated with the outside, the left side of the fan cavity is communicated with a fan sliding block cavity, and the fan sliding block drives a fan rotating shaft to move up and down to realize up-and-down circulating heat dissipation,so that external air is blown into the communication machine cavity and exhausted through an exhaust port, the situation that fixed heat dissipation transfers hot air on the upper side to the lower side to gather hot air on the lower side is avoided, heat dissipation is more reasonable, and the cost is reduced. Meanwhile, a cabinet door rotates to drive a driving shaft gear to be engaged with a driven shaft gear, so that a cover plate moves rightwards, sun shading and rain shielding are achieved for maintainers during maintenance, the situation that the external environment interferes with the maintenance progress is avoided, and maintenance is smoothly and efficiently completed.

The invention aims to provide an ammonia-electricity hybrid power system of an alternating-current and direct-current main network ship. The system comprises an ammonia fuel engine, a first reversiblemotor, a second reversible motor, a third reversible motor, a hoisting motor, a diesel generator set, a storage battery, a capacitor, a fuel cell, a propeller, a liquid ammonia storage and supply device, a power transformation device, a ship power grid, a ship load and a whole ship cooling system. Hybrid propulsion of an ammonia fuel engine and double motors, coordinated power supply of a dieselgenerator set and an energy storage unit, cooperative work of an AC main network and a DC main network and multi-stage utilization of cold energy of the energy storage unit and the engine can be achieved, ship energy consumption is reduced, the whole ship efficiency is improved. The system is provided with a hoisting motor and is suitable for specific large ships.

The invention discloses a separable liquid-cooled Led (Light Emitting Diode) radiator. The separable liquid-cooled Led (Light Emitting Diode) radiator comprises a radiator base and heat radiating blocks, wherein a power plug and a clamping groove are arranged on the radiator base, each heat radiating block consists of a cooling liquid tank, large gears, blades, clamping pieces and a motor frame, the cooling liquid tank is sealed by using an insertion piece, the insertion piece is fixedly arranged between the large gears at the two ends, blade rods are arranged outside the cooling liquid tank, the blades sleeve the blade rods, the top end and the bottom end of the blade rods are respectively provided with a small gear, the small gears are engaged and connected with the large gears, the clamping pieces are arranged outside the small gears, sleeve the blade rods and are fixed by using nuts, the motor frame is arranged in the cooling liquid tank and is fixed on the clamping piece by using screws, and the clamping pieces are fit and connected with the clamping grooves. The radiator utilizes the feature of high specific heat capacity of liquid, a great amount of heat is taken away with the rotation of the cooling liquid tank, the blades rotate and drive surrounding air to flow and the heat radiating effect is increased. Since the distribution and the number of the heat radiating blocks can be adjusted according to actual situations, more reasonable LED heat radiation is realized.

The invention discloses electric hair clippers and a controlling method. The electric hair clippers comprise a shell (1), an upper cutter blade (2), a lower cutter blade (3), an electric motor (4) and an offset head (5), wherein the upper cutter blade (2), the lower cutter blade (3), the electric motor (4) and the offset head (5) are all arranged on the shell (1); an output shaft (6) of the electric motor (4) is connected with the upper cutter blade (2) by the offset head (5); a heat radiating fin (7) is arranged on the lower cutter blade (3); and a fan (8) for blowing the heat radiating fin (7) is arranged on the output shaft (6) of the electric motor (4). The key points of the method are that two switches are controlled according to room temperature T0 and cutter blade temperature Tx so as to realize switching of working modes of the fan (8). According to the electric hair clippers and the controlling method, the phenomenon that the cutter blades are heated in long-term working state so as to burn the skin can be avoided.

The invention discloses a wall base for a desk type integrated computer and mainly relates to computer bases. The wall base comprises lifting devices and a wall base body and is characterized in thatthe lifting devices are arranged on two sides of the bottom of the wall base body, the bottom wall of the wall base body is provided with a telescopic air inlet pipe, the bottom wall and the lateral wall of the wall base body are provided with cold-air pipes, a hot air collecting cavity, a heat-exchanging condenser pipe and a cold air collecting cavity are arranged in the bottom wall of a computerplacing groove, the bottom wall of the computer placing groove is provided with a telescopic air outlet pipe, and the top of the computer placing groove is further provided with an angle regulating device. The wall base has the advantages that the desk type integrated computer can be ascended and descended along a wall according to needs, the desk type integrated computer is descended to the lowest point when being used as a computer, the desk type integrated computer can be ascended to the highest point when being used as a television, the inclination angle of the screen of the computer canbe adjusted, comfortableness and convenience during use are achieved, and effective and reasonable radiating and cooling of the interior of the computer can be achieved.

The invention discloses a cooling fan variable-frequency control method and device. The method and the device are applied to a main motor, and solve the technical problems that in the prior art, the cooling effect on the main motor is poor, and too much electric energy is consumed. The main motor comprises a motor stator and a cooling fan, wherein the cooling fan variable-frequency control device comprises a controller, the controller is used for obtaining a temperature feedback value of the motor stator and obtaining a rotating speed feedback value of the main motor, when the temperature feedback value exceeds a first preset temperature value, the operation frequency of the cooling fan is controlled to be switched to the first frequency corresponding to the temperature feedback value, when the temperature feedback value is smaller than the second preset temperature value, the operation frequency of the cooling fan is controlled to be switched to a second frequency corresponding to the rotating speed feedback value, and the first frequency is greater than the second frequency.

The invention discloses electric hair clippers and a controlling method. The electric hair clippers comprise a shell (1), an upper cutter blade (2), a lower cutter blade (3), an electric motor (4) and an offset head (5), wherein the upper cutter blade (2), the lower cutter blade (3), the electric motor (4) and the offset head (5) are all arranged on the shell (1); an output shaft (6) of the electric motor (4) is connected with the upper cutter blade (2) by the offset head (5); a heat radiating fin (7) is arranged on the lower cutter blade (3); and a fan (8) for blowing the heat radiating fin (7) is arranged on the output shaft (6) of the electric motor (4). The key points of the method are that two switches are controlled according to room temperature T0 and cutter blade temperature Tx so as to realize switching of working modes of the fan (8). According to the electric hair clippers and the controlling method, the phenomenon that the cutter blades are heated in long-term working state so as to burn the skin can be avoided.

The invention discloses a three-dimensional LED circuit board and an LED illumination device which are used in the technical field of LED illumination. The LED illumination device comprises a lamplight housing. A connecting pillar is arranged at the bottom of the lamplight housing. A lamp holder is arranged at the bottom of the connecting pillar. A contact is arranged at the bottom of the lamp holder. The left side and the right side of an inner chamber of the lamplight housing are each provided with a support plate. The two support plates are the same in structure. According to the three-dimensional LED circuit board and the LED illumination device, through cooperation between a heat dissipation hole and a heat dissipation fan, heat generated in the LED illumination device can be conducted out in time; meanwhile, when the LED illumination device is used for a long time, a good heat dissipation effect can still be guaranteed, and the situation that the heat is not dissipated in time due to heat storage is avoided; and a central processor is electrically connected with the heat dissipation fan, the heat dissipation fan can be controlled to work and stop through the central processor, thus heat dissipation of the heat dissipation fan can be controlled, it is guaranteed that the heat dissipation fan can conduct heat dissipation reasonably, and energy is saved.

The invention discloses a high-voltage generator based on MOS transistor series discharge, belongs to the technical field of electronic and high-voltage measurement, and aims at solving the technicalproblem of how to overcome the defect of voltage reduction of a traditional resistor. The high-voltage generator comprises a MOS transistor series discharge circuit which comprises N voltage-sharing resistors and N MOS transistors connected in series, a capacitor C is connected in parallel between the grid electrode and the source electrode of each MOS transistor, and a voltage-limiting protectionelement MOV is connected in parallel between the source electrode and the drain electrode of each MOS transistor; the first end of the booster is electrically connected with the source electrode of the TN and is connected with the output A, and the second end is electrically connected with the grid electrode of the T1; the first end of the current-limiting resistor R is electrically connected with the drain electrode of the T1, and the second end is connected with the output B; the first end of the voltage stabilizing element W is electrically connected with the grid electrode of the T1; andthe first end of the anti-interference capacitor C1 is electrically connected with the grid electrode of T1, and the second end of the anti-interference capacitor C1 is electrically connected with thesecond end of the voltage stabilizing element W and connected with output B.

The invention discloses a large-scale video matrix exchange board and video processing board connecting structure which comprises a video matrix switching board, a video input-output processing board and a video channel connecting board. A first video channel connector is mounted at the upper end of one edge of the video channel connecting board and connected with the video matrix switching board, and two second video channel connectors are mounted in the middle of the other edge of the video channel connecting board and connected with the video input-output processing board. The connecting structure can realize a matrix function while having reasonable heat channels for heat radiation, input-output board cards are compatible with board cards for small-scale matrix cabinets, and the connecting structure does not need to be designed solely, thereby being reasonable in structure.

A new energy intelligent driving motor cooling system disclosed by the present invention comprises a water cooling end cover and a high heat conduction stator assembly, the high heat conduction stator assembly is fixed in the water cooling end cover, and the high heat conduction stator assembly comprises a stator iron core, a winding coil and a sealed heat conduction mechanism. A plurality of stator iron core tooth parts are arrayed on the surface of the stator iron core in the circumferential direction, the winding coil is installed on the stator iron core tooth parts, the sealing heat conduction mechanism is arranged between the water-cooling end cover and the stator iron core, a cooling loop is arranged in the water-cooling end cover, and the water-cooling end cover is connected with the stator iron core. And the cooling loop is provided with a strong heat exchange area corresponding to the back position of each winding coil. Through the design of the strong heat exchange areas, each group of winding coils can correspond to one strong heat exchange area, so that each group of winding coils can be subjected to emphasized heat dissipation, and the overall heat dissipation effect of the disc type motor is enhanced.

The invention discloses a traction converter, which includes a box body and a bracket arranged in the box body, the box body includes a front panel, a rear panel, a left side panel, a right side panel, an upper cover panel and a bottom panel , an air duct is formed on the bracket from the front panel to the rear panel, and the high-voltage input component, power inverter unit, low-voltage control unit and filter reactor are integrated in the box, so the box can be directly fixed on the vehicle and installed , The maintenance process is simple and convenient; at the same time, the length of the jumper cables between the modules is reduced, which further saves the equipment space and improves the reliability of the equipment; in addition, only one fan can reduce the heat generated in the box The large modules dissipate heat, thereby realizing the integration and unification of the heat dissipation system. The present invention rationally arranges the heat levels of the above-mentioned components, so that the flowing air first dissipates heat to the power inverter unit, and then conducts heat dissipation to the filter reactor. Heat dissipation, and achieved a good heat dissipation effect.

The invention provides a heat dissipation structure of a high-density digital power supply and a power supply assembly. The heat dissipation structure comprises a 3U case, a red copper radiator, a flow guide cover and a vapor chamber radiator, wherein functional modules form a convective heat exchange path in a cavity of the power supply case, the red copper radiator can rapidly exchange heat generated by a rectifier diode and an absorption resistor to the outside of the box body in an air convection mode, the vapor chamber radiator can further rapidly exchange heat generated by an insulated gate bipolar transistor to the outside of the box body in an air convection mode, therefore, the temperature rise of a heat-sensitive device mounting area of a rectifying circuit layout is reduced. Theheat dissipation structure is advantaged in that a heat dissipation channel is redefined and is improved on the basis of an original channel, temperatures of a rectifier diode, a resistor mounting area and an insulated gate bipolar transistor are reduced, and the service life of the device is prolonged; the working temperature of a power tube is reduced, and problems of power tube failure and system high-temperature shutdown protection are effectively solved.

The invention discloses a portable aerosol generator which comprises a rectangular box body, and a generating structure and a drying and evaporating structure are arranged in the rectangular box body; an air inlet filtering structure and a heat dissipation structure are arranged on the rectangular box body; a movable supporting structure is arranged on the lower wall surface of the rectangular box body; a transportation protection structure is arranged outside the rectangular box body; and a medicine mixing structure is arranged on the generating structure. The portable aerosol generator has the beneficial effects that the generation structure facilitates salt mist generation and liquid medicine discharge in the form of mist, so that the use effect is met; through the air inlet filtering structure, air can be conveniently injected into the rectangular box body, mist discharge is facilitated, and the device is reasonably used; and the heat dissipation structure facilitates internal heat dissipation after the device is used, so that the device is convenient to use next time.

The invention provides a rotating type bulb base which comprises a mounting support, a rotating frame, a bulb fixing cover used for mounting a bulb and a radiating fan, and a driving device. The rotating frame is arranged on the mounting support. The bulb fixing cover is fixedly arranged on the rotating frame. The bulb fixing cover and the rotating frame form a rotating combination which is arranged on the mounting support in a rotating mode. The driving device is connected to the rotating combination and is used for driving the rotating combination to rotate. When the projection direction of the bulb needs to be changed, only by driving of the driving device, the rotating combination body can rotate by 360 degrees freely, accordingly, the bulb is driven to rotate to the needed angle position, meanwhile, the bulb is fixed on the bulb fixing cover, the radiating fan and the bulb arranged on the bulb fixing cover are fixed in arranged position, and therefore even if the projection direction of the bulb is changed, the radiating fan can carry out reasonable radiating at the positions where temperature is highest and lowest in the bulb. The invention further provides a projector with the rotating type bulb base.

The invention discloses a motor controller heat dissipation protection device, which comprises a motor controller and a support. A heat dissipation mechanism and a supporting protection mechanism arearranged on the support. The heat dissipation mechanism is located above the supporting protection mechanism. The supporting protection mechanism mainly comprises a plurality of supporting columns, abaffle and a screen plate. The supporting columns are arranged on the left side and the right side of the support respectively and are separated at equal intervals. Circular through holes corresponding to the supporting columns in position are formed in the upper wall face of the baffle. The baffle is inserted into the supporting columns through the circular through holes. The reasonable heat dissipation can be carried out on the motor controller conveniently when the motor controller is used. The service life of the motor controller is prolonged. The surrounding high-temperature air flow is improved, and the motor controller is convenient to install.

The invention relates to an underground water source radiation plate type air conditioning system, which comprises an underground water radiant ceiling system, a freezing water system and a displacement ventilation system, and is characterized in that the underground water radiation ceiling system comprises an underground water inlet pipe, a life water tank, an air cooler and a ceiling radiation unit; the outlet end of the underground water inlet pipe is divided into a first bypass pipeline, a first bypass branch and a second bypass pipeline; the first bypass pipeline is connected with the ceiling radiation unit, the second bypass pipeline is connected with the life water tank, the first bypass branch is connected with the air cooler, and the water outlet of the air cooler is accessed into the first bypass pipeline; the freezing water system comprises a refrigeration unit and a combined air conditioning unit; the displacement ventilation system comprises the air cooler, the combined air conditioning unit, a plenum box, a 70-DEG C fire protective valve and displacement ventilators. The underground water source radiant panel air conditioning system has the advantages of energy economization and good comfort, and is applicable to buildings taking underground water as a main water supply source in cold regions or regions hot in summer and cold in winter.

The invention discloses a wall-hanging desk-type integrated computer, and mainly relates to the field of computers. The wall-hanging desk-type integrated computer comprises an integrated computer body, a wall support and a cooling device, air inlet holes and air outlet holes are formed in the back of the integrated computer body, an adjusting gear is arranged in the wall support, the cooling device comprises a computer body connection part, a middle connection part and a vertical connection part, the computer body connection part is detachably connected with the integrated computer body, a cooling fan is arranged inside the middle connection part, veering teeth which are matched with the adjusting gear are arranged at the top of the vertical connection part, the bottom of the vertical connection part is hinged to the bottom face of the wall support, and vent holes are formed in the outer side face of the vertical connection part. The wall-hanging desk-type integrated computer has the advantages that when the desk-type integrated computer serves as a television, the integrated computer body can be conveniently hung on the wall, the angle of a display screen of the integrated computer body can be adjusted according to needs, it is avoided that the screen of the television reflects light, and watching is more convenient and comfortable; heat dissipation and cooling can be more reasonably and effectively conducted.

The invention discloses a three-dimensional LED circuit board and an LED illumination device which are used in the technical field of LED illumination. The LED illumination device comprises a lamplight housing. A connecting pillar is arranged at the bottom of the lamplight housing. A lamp holder is arranged at the bottom of the connecting pillar. A contact is arranged at the bottom of the lamp holder. The left side and the right side of an inner chamber of the lamplight housing are each provided with a support plate. The two support plates are the same in structure. According to the three-dimensional LED circuit board and the LED illumination device, through cooperation between a heat dissipation hole and a heat dissipation fan, heat generated in the LED illumination device can be conducted out in time; meanwhile, when the LED illumination device is used for a long time, a good heat dissipation effect can still be guaranteed, and the situation that the heat is not dissipated in time due to heat storage is avoided; and a central processor is electrically connected with the heat dissipation fan, the heat dissipation fan can be controlled to work and stop through the central processor, thus heat dissipation of the heat dissipation fan can be controlled, it is guaranteed that the heat dissipation fan can conduct heat dissipation reasonably, and energy is saved.