74results about How to "Improve internal heat dissipation" patented technology

The invention provides an integrated robot joint module. The integrated robot joint module comprises a joint output component, a harmonic reducer, a joint shell, a driving motor main body, a brake mechanism and an integrated circuit module; the joint output component is used for being connected with an external execution mechanism or a load; the harmonic reducer is used for adjusting the rotatingspeed of the joint output component; the joint shell is used for fixing the harmonic reducer and driving the motor main body, the brake mechanism and the integrated circuit module, and the driving motor main body is used for driving the harmonic reducer according to the instruction of the integrated circuit module; the brake mechanism is used for holding the driving motor main body according to aninstruction of the integrated circuit module; and the integrated circuit module drives the working state of the motor main body according to an instruction of an external upper computer, and the working state of the joint output component is used for driving the driving motor main body.

The invention discloses a point-contact-typed explosion-proof capacitor for a conductive column, and relates to the capacitor which comprises an aluminum shell and a capacitor body encapsulated in the aluminum shell. The upper end of the capacitor body and the lower end of the capacitor body are connected with first copper foil, the upper end of the aluminum shell is provided with an explosion-proof end cover, the inner side of the explosion-proof end cover is provided with a bridging-typed explosion-proof piece, and a fixed bridge is arranged between the bridging-typed explosion-proof piece and the explosion-proof end cover. The lower side of the bridging-typed explosion-proof piece is provided with second copper foil, a solid rivet is arranged in the bridging-typed explosion-proof piece, the bottom inside the aluminum shell is provided with a lower positioning sleeve, the capacitor body is inserted into the positioning sleeve, and the lower end of the bridging-typed explosion-proof piece is provided with an elongated baffle which abuts against the upper portion of the capacitor body. The point-contact-typed explosion-proof capacitor is simple in structure and easy to implement, the assembling procedures of the capacitor are simplified for a refrigerator with the capacitor, production efficiency is improved, internal heat dissipation is enhanced as well, and explosion-proof performance is enhanced.

This invention discloses a kind of apheliotropic module group including several lamp tubes, a diffusing board and a inside-vacant cooling reflecting board. The diffusing board is equipped above the lamp tubes, while the inside-vacant cooling reflecting board is equipped below the lamp tubes which is board-shape thermic tube structure and the surface just opposite the lamp tubes is the reflecting plane.

The invention relates to a pendular LED plant light compensating lamp set which comprises multiple LED plant light compensating lamps, a heat-radiating support and a heat-radiating fan. Each LED plant light compensating lamp comprises an LED lamp bead, a power source, a lamp head and a heat-radiating lamp shell, the top of the heat-radiating lamp shell of each LED plant light compensating lamp is connected with the lower end of a manipulator capable of oscillating leftwards and rightwards, the upper end of the manipulator is connected on a mounting plate, a synchronous motor controlling oscillation of the manipulator is arranged on the mounting plate which is connected with the heat-radiating support, and the heat-radiating fan is arranged on the upper portion of the heat-radiating support. Through the above improvement, the pendular LED plant light compensating lamp set has the advantages of being energy saving and environment friendly, free of burning plants due to high temperature, controllable in wavelength, suitable for plant growing, omnibearing and uniform in irradiating, good in inside heat-radiating effect, long service life and simple and convenient to operate.

The invention discloses an outdoor energy-saving and heat-dissipation alternating current low-voltage power distribution box, and relates to the field of a power distribution box. The outdoor energy-saving and heat-dissipation alternating current low-voltage power distribution box comprises a power distribution box body, wherein a left baffle and a right baffle which are connected are arranged at the upper end of the power distribution box body; the left baffle and the right baffle form an inverse V shape; the left baffle and the right baffle are provided with solar panels respectively; a plurality of heat dissipation strips are arranged on the top surface of the power distribution box body; a plurality of heat dissipation holes are formed between the adjacent heat dissipation strips; sliding grooves are formed in the symmetrical positions of the left baffle and the right baffle respectively; a mounting plate is arranged above the heat dissipation strips; a pulling handle is arranged at one end of the mounting plate; sliding rods are arranged on the two sides of the mounting plate respectively; the sliding rods are glidingly connected with the sliding grooves; a storage battery is arranged on the upper end plane of the mounting plate while an LED illuminating lamp is arranged on the lower end plane; the solar panels are both electrically connected with the storage battery; the LED illuminating lamp is electrically connected with the storage battery; a heat dissipation apparatus is arranged on the power distribution box body; and heat dissipation nets are arranged on the symmetrical side walls of the power distribution box body respectively. The outdoor energy-saving and heat-dissipation alternating current low-voltage power distribution box has rainproof and sunscreen functions, a good heat dissipation effect and long service life.

The invention discloses a high-speed packaging production line for a penicillin bottle. The high-speed packaging production line comprises a plastic film emptying mechanism, a support box forming mechanism, a stepping traction mechanism, a blanking mechanism, a switchover mechanical arm, a support box conveying platform, a support feeding conveying platform, a support separating conveying platform and a packing conveying platform which are distributed in the same direction, wherein the support feeding conveying platform is correspondingly provided with a support feeding mechanism, and the packing conveying platform is correspondingly provided with packing mechanism. The high-speed packaging production line is characterized in that the support feeding conveying platform is connected with the support separating conveying platform through a steering conveying platform, wherein an input end of the steering conveying platform is parallel to the output of the support feeding conveying platform, an output end of the steering conveying platform is perpendicular to the input of the support separating conveying platform, and the steering conveying platform comprises an arc-shaped track for steering a support box by 270 degrees. The high-speed packaging production line for the penicillin bottle is simple and compact in structure and high in production efficiency, and the high-speed packaging production of the penicillin bottle can be realized.

The invention relates to a focusable light source structure, which adopts a light guide pipe structure and comprises a luminous body and a condensing mechanism that are arranged on the same optical axis, wherein the distance between the luminous body and the condensing mechanism is continuously adjustable in the focal range at one side of the condensing mechanism. Particularly, the light source structure also comprises an inner sleeve and an outer sleeve which are arranged coaxially; the luminous body is arranged in the outer sleeve; one end of the inner sleeve is inserted into one end of the outer sleeve, and the other end of the inner sleeve is fixedly provided with the condensing mechanism; and the inner sleeve and the outer sleeve can slide relatively. In the focusable light source structure, the illuminance level of the emitted light can be effectively improved, the module test area is enlarged, the uniformity of the emitted light is guaranteed to meet the requirement, and the test accuracy and the optical efficiency are improved, so that the focusable light source structure can become an important structure form for large-area module measurement and simulation of the outer space environment measurement.

The invention discloses a frequency converter. The frequency converter comprises a box body shell (1); a plurality of component modules which are modularly designed and detachably mounted are arrangedin a box body cavity of the box body shell (1); and the plurality of the component modules are arranged in sequence in the up-down direction in the box body cavity and are arranged in a layered modein the front-back direction. According to the frequency converter, the modular and layered structure design modes are adopted, so that the structure in the box body cavity can be more compact and ordered, meanwhile the frequency converter is convenient to mount and maintain, and the internal heat dissipation effect is better.

The invention belongs to the technical field of navigation locators, and particularly relates to a vehicle-mounted Beidou navigation locator with a wireless communication function. In order to solve the problems that an existing Beidou navigator is poor in locating effect, internal heat dissipation and circuit board dismounting and mounting are inconvenient, and operation is inconvenient, the following scheme is provided. The vehicle-mounted Beidou navigation locator comprises a Beidou navigation locator body, wherein a vehicle-mounted system module is connected to the Beidou navigation locator body; a display module is connected to the vehicle-mounted system module; an antenna is connected to the Beidou navigation locator body; a wireless transmission module is connected to the antenna; the Beidou navigation locator body comprises a Beidou navigation locating module, a bottom shell, a shell cover and a circuit board; the Beidou navigation locating module is arranged on the circuit board; the shell cover is rotationally installed on one side of the bottom shell; and the circuit board is arranged in the bottom shell. The vehicle-mounted Beidou navigation locator is simple in structure and convenient to operate, the locating effect can be improved, and internal heat dissipation and circuit board dismounting and mounting are convenient.

The invention discloses a heat dissipation machine shell apparatus used for a windshield wiper motor. A windshield wiper motor mounting reinforcing shell consists of a motor shell, a worm shell and aturbine shell in integrated forming, so that internal components can be protected effectively; meanwhile, when the motor drives the turbine to rotate through the worm, the worm also can drive a secondary turbine to rotate, and the secondary turbine drives a first gear to rotate; the first gear and a second gear are meshed, so that rotation of the first gear can drive a rotating rod to rotate through the second gear, thereby driving fan blades to rotate, accelerating air flow in the motor shell and further accelerating internal heat dissipation; and therefore, the problem that the service lifeof the conventional windshield wiper motor is greatly shortened caused by easy motor damage in a high-temperature working environment due to relatively weak heat dissipation performance can be solved.

The invention relates to the technical field of vacuum coatings and discloses a vacuum coating device for automobile rearview mirror lens. The vacuum coating device comprises a vacuum coating device main body, wherein two first supporting plates in symmetrical distribution are fixedly connected to the inner wall of the vacuum coating device main body; first circular through holes are formed in onesides, which are opposite to each other, of the two first supporting plates; first rolling bearings are fixedly connected to hole walls of the first circular through holes; the inner walls of the twofirst rolling bearings are fixedly connected with a reciprocating lead screw; and the screw rod of the reciprocating lead screw is in matched connection with a lead screw nut. The vacuum coating device for automobile rearview mirror lens disclosed by the invention has the advantages that the drying speed of the rearview mirror lens is high, rapid cooling of the rearview mirror lens can be realized, the coating efficiency of the vacuum coating device is improved, the vacuum coating device does not need manual handling, time and labor can be saved, and the labor intensity of the workers is reduced. Meanwhile, the device is avoided from being damaged due to collision during handling, the device can be normally used, and the service life of the device can be ensured.

The invention relates to portable ideology and politics teaching projection equipment. The equipment comprises a case, a lens, a projection light source and an air inlet are arranged at a front part of the case; two threaded holes and loudspeakers are symmetrically arranged at a left side and a right side of the case; a U-shaped handle is further arranged on the case, and long holes are formed attwo ends of the U-shaped handle along the length direction, the long holes and the threaded holes are connected through thumb screws; a display screen and operation buttons are arranged at the upper part of the case; a multimedia signal interface, a charging interface and an air exhaust are arranged at the back part of the case, and the locations of the air inlet and the air exhaust are correspondingly arranged. The projection equipment disclosed by the invention has the advantages that a teacher can conveniently adjust the projection height of the equipment along the long hole direction of the U-shaped handle and then the equipment can be fastened through the thumb screws, and the thumb screws can be unscrewed, thereby conveniently carrying the projection equipment by gripping the U-shaped handle; furthermore, the locations of the air inlet and the air exhaust are correspondingly arranged so that the air can smoothly pass the internal of the projection equipment, and the internal radiating is convenient.

The invention discloses an adjustable safety transformer. The adjustable safety transformer comprises a transformer body, wherein fastening bolts are fixedly arranged at the top of the transformer body at equal intervals, an antenna rod is arranged among the fastening bolts and is arranged at the top of the transformer body, a fixed plate and a suspension ring are connected with one side, near tothe fastening bolts, of the antenna rod, the suspension ring is arranged at one side of the fixed plate, a right-angle bending plate is arranged at the bottom of the transformer body and is symmetricabout the center of the transformer body, a reinforcement rib is arranged at one side of the right-angle bending plate and is connected with the transformer body, a support plate is fixedly connectedbetween the reinforcement rib and the right-angle bending plate, a threaded hole is formed in the support plate and is adaptive to the support plate, and an output motor is fixedly connected with oneside of an inner wall of the transformer body. The adjustable safety transformer has the beneficial effects of high stability and good cooling effect and is convenient to use and install, the volumesof a lead and the transformer are not needed to be changed when a rotational direction of a sleeve is needed to be changed, the production cost is reduced, and the service lifetime of the transformeris prolonged.

The invention discloses a notebook computer structure for conduction and convection heat radiation by using an upper cover. The notebook computer structure comprises a cover A with a fin, an air inlet, a nozzle and a rotating shaft, a pair of fans, a heat conducting sheet and a circuit board, wherein the circuit board integrates a memory, a video memory, a CPU (Central Processing Unit), a graphics chip and a South Bridge chip and is jointed on the back surface of a display screen and located in the cover A. According to the notebook computer structure, components which easily dissipate heat in a computer are integrated on one circuit board, the circuit board is moved to the upper cover, the nozzle, the fan and the heat conducting sheet are arranged in the upper cover, the components which easily dissipate heat in the computer are subjected to heat radiation by adopting a principle of an air multiplier so that an internal heat radiation environment and an external heat radiation environment of the notebook computer are changed, and the problem of heat radiation of a high-power computer is effectively solved.

The invention discloses a DC capacitor for a super high power three-level inverter. The capacitor is formed by a shell, cores, wiring terminals, filled resin and a pressure release valve. The shell comprises a shell body, a shell bottom and a shell cover. Each of the cores comprises elements, a connection copper foil, an intermediate insulation piece, a fixed insulation plate, an insulation protection piece, a bottom insulation piece, an electrical wire outlet copper foil, corner protectors, a bandage and a cover insulation piece. The wiring terminals are installed on the capacitor shell cover and are connected to the electrical wire outlet copper foils of the cores, and each of the wiring terminals is formed by an insulator, a round nut, a guide rod and a sealing ring. The pressure release valve is installed on the capacitor shell cover. The filled resin comprises resin filled in the gaps between the cores, the gaps between the elements, and the gaps between the cores and the shell and is polyurethane. The DC capacitor of the invention has the advantages of a small heating quantity, good heat dissipation performance, high insulation and electric resistance, strong endurance to large current, low inductance, safe operation, dryness, no oil and no leakage.

The invention relates to the technical field of welding, and discloses a flux-cored wire for surfacing repair. The flux-cored wire comprises a flux-cored wire main body, wherein the flux-cored wire main body comprises a metal layer wrapping a flux core; the flux core comprises the following components in percentage by weight: 0.1 to 5 percent of C, 0.8 to 3 percent of Mn, 0.5 to 2 percent of Si, 3 to 25 percent of Cr, 1 to 4 percent of Mo, 1 to 10 percent of W and the balance of Fe. According to the flux-cored wire, Mo is added into a conventional flux core formula, so that the performance of high temperature resistance and abrasion resistance of a welding material is achieved, the strength of a welding seam is ensured, and a welding layer is favorably prevented from being stripped in large scale; by Mo in steel, the hardenability and the thermal strength can be improved, the temper brittleness is prevented, and the residual magnetism and the coercive force are improved; silicon does not form carbide, so that a powerful function of promoting the graphitization of carbon is realized.

The invention discloses a holographic projection type simulation training device for a tourist guide. The holographic projection type simulation training device for the tourist guide comprises a substrate, a projection plate, an isolation top plate, a holographic projection film and two side baffle plates; the projection plate, the isolation top plate, the holographic projection film and the two side baffle plates are all installed on the upper surface of the substrate; the substrate is provided with an air inlet which is matched with the air inlet end of an ion fan; and the air outlet end ofthe ion fan extends to the outer side of the upper surface of the substrate and is also movably provided with an air outlet grid. According to the holographic projection type simulation training device for the tourist guide, the air outlet grid is utilized to regulate a wind direction, and the ion fan is utilized to produce ion wind to perform blowing on the holographic projection film, thus, theion wind can prevent ash deposition and remove the static electricity on the holographic projection film at the same time, and the condition of electrostatic precipitation is avoided; and by utilizinga heat dissipation fan to blow out heat of heat dissipation fins, the heat dissipation fins are cooled, so that a temperature of a panel personal computer can be effectively lowered, and the condition that the panel personal computer is damaged by high temperature is avoided.

The invention discloses a high-efficiency energy-saving relay, and relates to the technical field of relays. The relay comprises a lifting support, a mounting support and a relay box, bidirectional threaded columns are arranged on the two opposite side faces of the lifting support, movable threaded sleeves are arranged on the circumferential side faces of the bidirectional threaded columns, movable rods are connected to the upper surfaces of the movable threaded sleeves, and movable blocks are connected to one ends of the movable rods and connected with a lifting plate; the lifting plate is connected with an installation support through supporting rods, damping springs are arranged on the bottom face of the inner wall of the installation support, one ends of the damping springs are connected with the relay box, pressing columns are arranged on the two opposite side faces of the installation support, pressing plates are fixedly installed at one ends of the pressing columns, and clampingcolumns are arranged on the upper surfaces of side plates of the installation support. By arranging the pressing columns and the clamping columns to be clamped and matched, relay boxes of different sizes can be fixed conveniently; the damping springs are arranged, so that damping protection on relay box is facilitated; and the lifting support is arranged to facilitate height adjustment of the relay box.

The invention belongs to the technical field of straw smashing and returning and particularly provides a straw smashing and returning method. The method comprises the following steps that a storage tank is fixedly connected to an inner top plate in the discharging end of a cover in a straw smashing and returning device and used for storing a nitrogen fertilizer, the bottom of the storage tank is provided with a spraying-scattering port, the spraying-scattering port is used for scattering the nitrogen fertilizer, the nitrogen fertilizer is mixed with straw conveyed out of a first conveying belt, the straw mixed with the nitrogen fertilizer naturally falls, the bottom of the cover is provided with a vibration screen, the straw mixed with the nitrogen fertilizer falls to the vibration screenand is screened, two sides of the vibration screen are provided with air bags, a composite biological microbial agent is arranged in the air bags, the tops of the air bags are provided with outlets, the top ends of the outlets are opened and inward, the outlets are used for spraying out the composite biological microbial agent, the straw sprayed with the composite biological microbial agent waitsfor decomposition in fields, and accordingly straw returning is achieved.

The invention relates to the field of wireless communication equipment, and particularly discloses an energy-saving 5G wireless communication receiving and adjusting device, which comprises a box body; the heat collection fin frame is connected with the interior of the box body; the receiving device is connected with the box body; the ventilation device is connected with the box body; the supercharging device is connected with the air interchanger; a stabilizing assembly; wherein the supercharging device comprises a first linkage adjusting device, a second linkage adjusting device, a third linkage adjusting device and a fourth linkage adjusting device, and the first linkage adjusting device is connected with the interior of the box body; according to the air exchange device, the first linkage adjusting device and the second linkage adjusting device are synchronously driven to operate while heat exchange driving is achieved through the air exchange device in the device, internal all-directional air blowing pressurization is achieved, the internal air circulation speed is increased, and the internal heat dissipation effect of the device is improved; and meanwhile, an external stabilizing assembly can be driven to achieve pressurization and fixation of the box body.

The invention belongs to the technical field of battery charging devices, in particular to a battery charging base integrated circularly charging lithium battery. The battery charging base integratedcircularly charging lithium battery comprises a charging base shell body, wherein sliding rails are fixedly installed on the inner walls of the two sides of the charging base shell body in the horizontal direction; first sliding blocks are installed on the two sliding rails in a sliding mode; the same placement plate is fixedly installed between the two first sliding blocks; a fixed plate and a vertical plate are fixedly installed at the top part of the placement plate; a heat dissipation metal sheet is fixedly installed at the top part of the placement plate; a movable hole matched with the placement plate in size is formed in the side, close to the vertical plate, of the charging base shell body; and a rotating hole is formed in one side of the vertical plate in the horizontal direction.The battery charging base integrated circularly charging lithium battery is simple in structure and convenient to use, lithium batteries of different specifications can be fixedly charged conveniently, internal heat dissipation of the charging base can be increased conveniently during charging, and the charging process is safer.

The invention relates to the technical field of equipment cabinet installing accessories, in particular to an adjustable installing support used for an electronic equipment cabinet. According to the adjustable installing support used for the electronic equipment cabinet disclosed by the invention, a bottom support frame welded at the corner position of the inner side of a main cabinet body is matched with a top limiting frame, a gap is reserved between an installing plate and the inner side surface of the main cabinet body when the installing plate is transversely arranged fixedly, bottom heatis facilitated to be discharged from the outer side, the internal circulation is maintained, the internal heat dissipation performance is promoted, a transversely arranged adjusting tank in which theinstalling support is arranged is formed in the upper surface of the transversely arranged installing plate, a top installing plate in which a bar-type assembly port is formed is arranged above the transversely arranged installing plate, and the installing support is fixed by using the bar-type assembly port in the top installing plate to be covered with the installing support, so that the wholestructure is adjustable, the installing support is simple and convenient to assemble, disassemble and adjust, and the installing support can be adapted to various specifications of electrical equipment.

The invention discloses a municipal warning lamp structure. The municipal warning lamp structure comprises a supporting column. A lightning arrester is mounted at the top of the supporting column and connected with the supporting column through a fastener. The bottom of the supporting column is located on a telescopic rod. The telescopic rod and the supporting column are welded together. The telescopic rod is located on a lamp post. The top of the lamp post extends in the telescopic rod. Indicator lights are arranged on the lamp post and connected with the lamp post through a lamp holder. A control cabinet is connected to the bottom of the lamp post. A heat dissipation mechanism is mounted in the control cabinet. Heat dissipation strips are connected to one side of the heat dissipation mechanism. One end of each heat dissipation strip is connected with the heat dissipation mechanism. The other end of each heat dissipation strip penetrates through the control cabinet. The lightning arrester and the indicator lights are all connected with the control cabinet through internal wires. The municipal warning lamp structure has good supporting performance and is unlikely to fall, the gravity center is stable, and using is not affected even in the thunderstorm weather; in addition, indication is obvious, the heat dissipation performance of the interior is good, and the phenomenon that internal circuits are damaged due to too high temperature can be avoided.

The invention relates to the field of electronic scales, in particular to a micro electronic scale which comprises an outer shell, anti-skid blocks, suckers, an inner shell, a weighing sensor, air holes, dustproof nets, a lithium battery, a single chip microcomputer, a Bluetooth transceiving module, an alarm lamp, a buzzer, a supporting seat, supporting rods, sleeves, sliding blocks, scale pans, aloudspeaker, sliding grooves, movable blocks, connecting rods and movable grooves. According to the invention, through the air holes and the dustproof nets in the air holes, internal heat dissipationof the outer shell is enhanced, and dust is prevented from entering; the single chip microcomputer controls the loudspeaker to sound to read out the weight of a weighed object; connection and transmission with a mobile phone are facilitated through the Bluetooth transceiving module; the single chip microcomputer controls flickering of the alarm lamp and sounding of the buzzer, so that the micro electronic scale is convenient to find; fixing and moving are convenient through the antiskid blocks and the suckers; and the two scale pans are separated, the scale pans slide through the sliding grooves and the sliding blocks at the top ends of the supporting rods, the scale pans slide through the movable grooves and the sliding blocks at the two ends of the connecting rods, the supporting rangeof the scale pans is adjusted, and use is convenient.

The invention provides a drying device of microbial fertilizers. One end of a tank body is provided with a cleaning mechanism, and the other end of the tank body is provided with a drying mechanism. Afirst motor is installed at the exterior of the tank body, and the first motor is connected with one end of a spiral conveying mechanism installed in the tank body. The spiral conveying mechanism penetrates through the cleaning mechanism and the drying mechanism and communicates with the cleaning mechanism and the drying mechanism separately. A feeding pipe and a water inlet pipe are installed above the cleaning mechanism, and a screening net is installed in the middle of the cleaning mechanism. A water filtering net is installed at the bottom of the cleaning mechanism. Heating mechanisms areinstalled both above and below the drying mechanism. An air inlet pipe is installed above the tank body. According to the drying device, cleaning and drying are combined together skillfully, slow conveying is achieved by using the spiral conveying mechanism, meanwhile, the cleaning effect and drying uniformity are ensured, a radiator is installed on the tank body to lower the temperature of the tank body fast, corrosion of microbial fertilizer volatilizing on the device is reduced, the inner heat dissipation effect is speeded up by forced air inlet cooling through a draught fan and the air inlet pipe, and the drying device has extensive applicability in the microbial fertilizer production field.

The invention relates to the technical field of urban power engineering facilities, and particularly relates to an outdoor installation box for an urban power engineering substation. The outdoor installation box comprises an outer box body that is fixed to the ground by a bolt and an inner box body welded and fixed on the inner side wall of the outer box body. The outdoor installation box for theurban power engineering substation disclosed by the invention is connected with a top supporting frame and the outer box body through an L-shaped connection supporting bracket, and a removable metal filter screen is inserted into the top supporting frame, so that the surface of the outer box body can be prevented from being exposed to the rain directly, the phenomenon that water pollutants are deposited on the surface due to the rain and may affect the heat dissipation effect can be prevented, and meanwhile, a partition plate with a metal heat conducting rod on the surface is fixed inside theinner box body, the metal heat conducting rod is connected to the bottom surface of the connection supporting bracket, and thus the internal heat can be quickly output, and the internal heat dissipation performance can be greatly improved without affecting the internal sealing performance.

The invention discloses a device for automatically detecting the two-dimensional shape of a wafer substrate and belongs to the semiconductor material nondestructive detection technical field. In the device, a plurality of paths of emergent light of N laser beams are emitted by one laser and pass through a beam splitting prism including a plurality of beam splitting surfaces; the light intensities of the plurality of paths of emergent light emitted out from the beam splitting prism can be identical through endowing different reflectivity and transmissivity for the plurality of beam splitting surfaces, namely, the plurality of paths of emergent light with the same light intensity are not emitted by a plurality of lasers, but are obtained through reflecting and refracting the light emitted by one laser by means of the beam splitting prism, and therefore, in a limited arrangement space, a large-sized laser can be selected; when the size of the laser is increased, the inner heat dissipation performance of the laser can be improved; a feedback circuit is additionally arranged in the laser, the internal parameters of the laser can be changed according to needs; and thus, the output power and wavelength stability of the laser can be enhanced.