195results about How to "Affect heat dissipation" patented technology

In an assembly of an electronic device and a heat-dissipating module, the electronic device includes an electronic component disposed within a housing provided with an air outlet port, and the heat-dissipating module includes a heat-dissipating fin base disposed within the housing adjacent to the air outlet port, and a dust removing mechanism disposed on the heat-dissipating fin base. The heat-dissipating fin base includes two spaced-apart upright sidewalls, and a plurality of heat-dissipating fins arranged between the upright sidewalls. The dust removing mechanism includes a scraping plate disposed between the upright sidewalls and accessible outwardly of the air outlet port. The scraping plate has scraping teeth extending respectively into clearances among the heat-dissipating fins. By manipulating the scraping plate to displace upwardly and downwardly relative to the heat-dissipating fin base, dust that accumulates among the heat-dissipating fins can be scraped off.

A heat dissipation device is provided for dissipating heat generated by electronic components mounted on a printed circuit board in an electronic system. The electronic components have different heights. The heat dissipation device includes a connecting plate, at least two elastic members mounted on the connecting plate, and a heat sink having a substrate mounted on the connecting plate and located above one of the electronic components. A number of joining members extend through the printed circuit board and engage with the substrate to attach the substrate on the one electronic component on the printed circuit board. A distance between the substrate and the connecting plate is adjustable by adjusting the joining members to make the substrate intimately contact the one electronic component.

The invention discloses a new energy street lamp with heat dissipation and dust removal functions. The new energy street lamp comprises a shell, a cover housing is fixedly connected to the inner wallof the shell, a lead screw nut is rotatably connected to the side wall of the shell, impellers are uniformly distributed and fixedly connected to the side wall of the lead screw nut, a metal arc-shaped plate is rotatably connected to the opposite inner walls of the shell, and bristles attached to the surface of the cover housing are fixedly connected to the side wall of the metal arc-shaped plate.When the internal temperature of the shell reaches the metamorphic temperature of a memory spring; the memory spring contracts to enable a lead screw to move outside the shell; the lead screw nut drives an impeller to rotate; further, bristles on the side wall of the metal arc-shaped plate are driven to remove dust on the cover housing; and in the rotating process of the impeller, a magnetic sliding plug can slide back and forth in the arc-shaped cavity under the action of the spring, so that a cooling liquid in the cavity can circularly flow, dissipation of heat in the shell is accelerated,and the service life of the street lamp is prolonged.

The invention relates to a high / low-temperature shunting engine cooling system. The system comprises a high-temperature circular cooling system and a low-temperature circular cooling system; and the high-temperature circular cooling system has three cooling liquid flowing ways of big circulation, small circulation and delayed circulation. In the big circulation and the small circulation, cooling liquid is shunted after passing through a cylinder cover water jacket; one part enters the cylinder body water jacket, and the other part enters warm wind; in the big circulation and the small circulation, an ultrahigh-temperature loop is included; and the high-temperature circular cooling system and the low-temperature circular cooling system respectively adopt single expansion water tanks. As the high-temperature circular cooling system is added with an electric control auxiliary water pump, the delayed circulation is realized, and the cooling liquid is shunted into the cylinder body water jacket and the warm wind after passing through the cylinder cover water jacket, the warming demands of all parts after engine stop can be preferably adapted to, and the circular cooling flowing direction problems among different parts are solved; and the single expansion water tanks are provided, so that the engine knocking probability can be reduced.

The invention relates to an engine cooling system. The engine cooling system comprises a high-temperature circulation cooling system and a low-temperature circulation cooling system. The high-temperature circulation cooling system is provided with a large cycle cooling liquid flow path, a small cycle cooling liquid flow path and a delay cycle cooling liquid flow path. In the large cycle and the small cycle, cooling liquid passes through a cylinder cover water jacket and then is diverted, one part of cooling liquid enters a cylinder water jacket, and the other part of cooling liquid enters warm air. Independent expansion water tanks are adopted in the high-temperature circulation cooling system and the low-temperature circulation cooling system. An electric control auxiliary water pump is additionally arranged for the high-temperature circulation cooling system, the delayed cycle is achieved, the cooling liquid is diverted into the cylinder water jacket and the warm air after passing through the cylinder cover water jacket, and the engine cooling system can better meet the heat supply requirement of various components after engine shutdown. The problem about the flowing direction of cooling circulation between different components is solved, and the engine knock probability can be reduced by arranging the independent expansion water tanks.

A heat dissipation device is provided for dissipating heat generated by a plurality of electronic components mounted on a printed circuit board and having different heights. The heat dissipation device includes a connecting member and a first base mounted on the connecting member and located at above one of the electronic components. A number of joining members extend through the printed circuit board and engage with the first base to assemble the first base on the one of the electronic components on the printed circuit board. A distance between the first base and the one of the electronic components is adjustable by adjusting the joining members to make the first base intimately contact with the one of the electronic components.

The invention relates to the technical field of new energy and discloses new energy power battery fixing device comprising a placement box. A sealing strip is arranged at the top of the placement box,a clamping device is arranged in the placement box, a cooling fan is fixedly installed on the surface of the placement box, a sealing device is arranged on the surface of the cooling fan, and a threading hole is formed in the surface of the placement box. According to the new energy power battery fixing device, the top of the fixing device is sealed through the sealing strip; dust of the coolingfan is filtered through the filter screen; when the cooling fan rotates, a cleaning brush is driven to rotate so as to clean dust on the surface of the filter screen; the fixing device is convenient to seal, dust on the surface of the filter screen is convenient to clean, the probability of blockage of the filter screen is reduced, accumulation of dust on the surface of the filter screen is reduced, the heat dissipation effect is improved, the sealing performance of the fixing device is improved, and the content of dust in the fixing device is reduced.

The invention discloses an electrical cabinet with insect expelling and high heat dissipation functions. The cabinet comprises a cabinet body, through holes are formed in the side wall of the cabinetbody; a plurality of impellers are rotationally connected into the through holes through rotating shafts; and circular rings are fixedly connected to the inner walls of the through holes, annular cavities are formed in the circular rings, two magnetic plates are symmetrically and fixedly connected to the positions over and under the inner wall of the annular cavity, the magnetism of the sides, close to each other, of the two magnetic plates is opposite, and two sliding plates are symmetrically and slidably connected to the inner walls of the annular cavities. According to the invention, the evaporated liquid is continuously heated and cooled; strip-shaped magnet slides up and down in a strip-shaped cavity; the magnetic poles of the strip-shaped magnets are replaced back and forth; the strip-shaped magnetic strips drive the sliding plates to periodically rotate clockwise and anticlockwise on the inner walls of the annular cavities under the action of magnetic force of the magnetic plates, cooling liquid in a heat absorption cavity and a heat exchange cavity circularly flows to be replaced, and the cooling liquid is kept at a low temperature all the time to absorb heat in the cabinetbody.

A heat dissipation device is provided for dissipating heat generated by a plurality of electronic components mounted on a printed circuit board and having different heights. The heat dissipation device includes a connecting member and a first base mounted on the connecting member and located at above one of the electronic components. A number of joining members extend through the printed circuit board and engage with the first base to assemble the first base on the one of the electronic components on the printed circuit board. A distance between the first base and the one of the electronic components is adjustable by adjusting the joining members to make the first base intimately contact with the one of the electronic components.

The invention belongs to the field of street lamps, and discloses an LED solar street lamp. The LED solar street lamp comprises a lamp post. A solar cell panel is fixed to the top of the lamp post through a support. A mounting rod which extends laterally is fixed to the lamp post and located below the support. An LED lamp source and a lampshade are fixed below the mounting rod. The LED solar street lamp further comprises an automatic dust collection device. The automatic dust collection device comprises a gas storage system and a gas release system. The gas storage system comprises a gas storage tank and a gas intake mechanism used for collecting gas into the gas storage tank. The gas release system comprises a gas release spray head. The gas release spray head is used for spraying out gasin the gas storage tank 711 so as to remove dust accumulated on the lampshade. According to the LED solar street lamp, the automatic dust collection device can automatically remove dust accumulated on the lampshade without power from the outside or manual control.

A power distribution cabinet with heat dissipation and fire extinguishing functions disclosed by the present invention comprises a cabinet body, stepped ventilation openings are symmetrically formed in the two sides of the cabinet body, each ventilation opening is composed of an inner ventilation opening and an outer ventilation opening which are communicated from inside to outside, and a flashing board is rotatably mounted on the inner wall of the upper end of the side, away from the inner ventilation opening, of the outer ventilation opening through a rotating shaft. The flashing board and the inner wall of the lower end of one side of the outer ventilation opening are jointly connected with an arc-shaped corrugated pipe in a sealed mode, the side, close to the inner ventilation opening, of the flashing board is fixedly connected with a frame-shaped sealing gasket in a glued mode, the sealing gasket is larger than the inner ventilation opening in shape and size, the arc-shaped corrugated pipe is connected with a deflation pipe, and an electromagnetic valve is installed on the deflation pipe. The power distribution cabinet has the advantages that one power source has multiple purposes, heat dissipation and vibration removal of impurities on meshes are separately carried out by flexibly utilizing the arrangement direction of the fan blades and the one-way bearing, in addition, the flashing board is opened through an arc-shaped corrugated pipe for heat dissipation or closed through the arc-shaped corrugated pipe for fire extinguishing, and creativity is high.

The invention discloses a method for preparing electronic-grade nickel sulfate from nickel powder, a crystallization device and a control method of the crystallization device, and relates to the technical field of non-ferrous metal hydrometallurgy. The method comprises the steps of oxidation, cooling, acid leaching, copper removal, acid adjustment, concentration, cooling crystallization, drying and screening, and secondary leaching, and is characterized in that in the oxidation step, the temperature of nickel powder in a calcining furnace is controlled to be 400-700 DEG C, the use amount of compressed air for each kilogram of nickel powder is 1-5 m3, and the reaction is carried out for 1.0-2.5 hours; the acid leaching comprises the following steps: putting the cooled nickel oxide in a reactor, controlling the temperature to be 45-70 DEG C, adding dilute sulfuric acid to control the pH value to be 0.5-1.5, and reacting for 1-3 hours. The invention also provides a crystallization device and a control method of the crystallization device. According to the method, metal nickel can be oxidized into divalent nickel oxide, hydrogen cannot be released when acid is added for dissolution, a large number of oxidizing agents do not need to be additionally added, new impurity ions are not added in the process, the nickel ion concentration is relatively improved, and nickel sulfate crystal particles are uniform.

The invention provides a threaded hole processing method for a PCB (printed circuit board), which comprises the steps of hole routing and thread tapping, wherein a ball type routing machine is adopted to carry out hole routing at the position where a heat dissipation copper block is inlaid in a PCB with a copper sheet, and a thread tap with a chip removing slot is adopted to carry out thread tapping on a through hole of the PCB so as to acquire a threaded hole used for fixing the heat dissipation copper block. The threaded hole processing method provided by the invention for the PCB can process a threaded hole in an epoxy resin PCB with the thickness reaching up to 5mm, the processed threaded hole of the PCB is high in precision, and the processing qualified rate of the PCB is ensured. The threaded hole can be processed in the PCB, so that a screw thread can be processed at the periphery of the heat dissipation copper block correspondingly, and the heat dissipation copper block is enabled to be locked on the PCB through the screw thread, thereby avoiding a problem that overall heat dissipation of the PCB is affected because of untight, loosened or even falling-off connection between the heat dissipation copper block and the PCB.

The invention discloses a mounting and fixing mechanism for a pulse driving power supply of a laser pulse light source. The pulse driving power supply comprises a pulse driving power supply body, a fixing frame and a supporting device, and a handle is fixedly connected to the left side of the control panel, the bottom of the fixing frame is fixedly connected with the top of the supporting device,and a cleaning device is slidably connected between the top and the bottom of the inner wall of the fixing frame through a straight sliding rail. The mounting and fixing mechanism for the pulse driving power supply of the laser pulse light source comprises a base, pulling handle, the cleaning cotton on the cleaning device is driven by the connecting rod to clean the surface of the power supply; onone hand, static electricity can be eliminated, the power supply is not prone to dust absorption, on the other hand, dust on the surface of the power supply can be removed, dust accumulation is prevented from influencing heat dissipation of the pulse driving power supply body, the service life of the power supply is prolonged, the fixing structure has more functions, and practicability is improved.

The invention discloses an unshaped refractory material spraying device. The unshaped refractory material spraying device comprises a device box body, a fixed frame is installed in the middle inside the device box body, sound insulation boards are arranged at both sides of the inner wall of the device box body, a stirring bin is fixed to the middle of the fixed frame, electrostatic dust removers are symmetrically installed at the portion, closer to the two sides of the bottom of the stirring bin, at the bottom of the fixed frame, a discharging pipe is connected to the middle of the bottom of the stirring bin, a feed storage box is connected to the bottom of the discharging pipe, and a stirring shaft is installed in the middle of the top inside the stirring bin. Through the arrangement of asound insulation machine cover and the sound insulation boards, sound absorption and noise lowering of equipment are achieved, noise pollution is prevented, a healthy and comfortable working environment is easily built for workers, the work efficiency of the workers is improved, the electrostatic dust removers are arranged to adsorb dust, the dust is prevented from being attached to parts to influence cooling of the parts, efficient cooling of the parts is guaranteed, and the spraying cost is greatly lowered.

The invention discloses a flexible printed circuit board used for a vehicle lamp circuit in the flexible printed circuit board technology field. The flexible printed circuit board comprises a flexiblebase material plate. The top and the bottom of the flexible base material plate are provided with bonding layers. One side of each bonding layer, which is far away from the flexible base material plate, is provided with a heat conduction layer. One side of the heat conduction layer, which is far away from each bonding layer, is provided with a heat dissipation layer. The inner cavity of a grooveis vertically provided with a metal heat dissipation rod. The other end of the metal heat dissipation rod is connected to the heat conduction layer. The outer wall of the inner cavity of the groove isuniformly provided with honeycomb heat dissipation holes. A heat dissipation cavity is arranged in the heat dissipation layer. One side of the heat dissipation layer, which is far away from the heatconduction layer, is provided with a heat dissipation fin. The two surfaces of the flexible printed circuit board carry out heat dissipation, heat dissipation efficiency is rapid and heat dissipationquality is high; through arranging the heat conduction layer, the heat generated by the flexible base material plate during usage is conducted away and is transmitted into the heat dissipation layer through the metal heat dissipation rod; and a metal heat dissipation wire uniformly disperses the heat and the heat is timely discharged through the heat dissipation fin so that a whole electrical component can be prevented from being damaged.

An automatic battery heat-preserving box for an electric automobile battery in a cold region mainly comprises an automatic heat-preserving box base shell fixed to a chassis of an electric automobile, a rear box plate shell, a detachable left box plate shell, a right box plate shell, a front box plate shell and an a cover plate shell. When temperature of a temperature sensor is lower than a set value, after an electric heating wire controller of a rear box plate of the automatic battery heat-preserving box is started, a box plate electric heating wire generates heat, temperature rises, and when temperature of the heat-preserving box reaches a set value, work of the rear box plate electric heating wire of the heat-preserving box is interrupted. Due to the fact that the inner layer of the heat-preserving box shell is filled with efficient heat-preserving material aerogel, the automatic heat-preserving box for the electric automobile battery can preserve heat for a long time, the electric automobile battery is protected to normally work in a cold state, repeated heating of the rear box plate electric heating wire of the automatic heat-preserving box for the electric automobile battery is not needed, power consumption is greatly reduced, and the running distance of the automobile is increased. Due to the fact that part of box plates can be fast detached when it becomes hot, the automobile battery can still normally work.

The invention discloses a liquid cooling plate support buffer structure and a battery pack, and belongs to the technical field of energy storage devices. The liquid cooling plate support buffer structure comprises an elastic heat-insulating support portion, wherein one end of the elastic heat-insulating support portion is in surface contact with a liquid cooling plate, and the other end of the elastic heat insulating support portion is disposed on the bottom of a battery pack box body. The elastic heat-insulating support portion is configured to support and buffer the liquid cooling plate. Firstly, the elastic heat-insulating support portion has a low hardness and certain elasticity, is slowly restorable after deformation, and cannot wear or impact the box body and the liquid cooling platewhen impacted and squeezed, thereby reducing the risk of deformation and leakage of the battery pack. Secondly, the elastic heat-insulating support portion is in surface contact with the liquid cooling plate, and the liquid cooling plate cannot be deformed due to uneven stressed points, thereby avoiding the deformation of the liquid cooling plate due to uneven stressed points when the uneven stressed points is supported by springs, avoiding causing a gap between the liquid cooling plate and the battery pack, and further avoiding affecting the heat dissipation of the battery pack by the liquidcooling plate. In addition, the elastic heat-insulating support portion can be used directly as heat-insulating cotton to save costs.

An exemplary LED module includes a board and an LED package mounted on the plate. The LED package includes a base, an LED chip mounted on a top surface of the base, two electrodes formed on the base and electrically connected to the LED chip and the board, and an encapsulant encapsulating the LED chip. A plurality of grooves are defined in the bottom surface of the base. When the LED package is secured on the plate via solder paste, the grooves function as a container for receiving excessive solder paste, thereby preventing the solder paste from spilling and floating or inclination of the LED package.

The invention relates to a heat sink having a cleaning function. The heat sink comprises a heat sink body, a driving mechanism and a transmission mechanism, wherein a plurality of cooling fins are arranged on an upper surface of the heat sink body, the driving mechanism and the transmission mechanism are arranged at an end part of a front end of the heat sink body, a movable cleaning mechanism is arranged between adjacent cooling fins, the cleaning mechanism comprises a vertical plate and a ball screw, the ball screw is arranged at the bottom of a gap among the cooling fins, the vertical plate is arranged on a ball nut of the ball screw, cleaning sheets are movably connected with an outer side of the vertical plate, and the driving mechanism is connected with an end part of the ball screw via the transmission mechanism. By the heat sink, automatic cleaning of the cooling fins can be achieved, time and labor are saved during operation, the heat dissipation effect of the heat sink is improved, and the heat sink has good practicability.

The invention discloses a charging pile facilitating cleaning and dust removal of air inlet, which includes a housing, the charging pile body is fixedly installed on the bottom inner wall of the shell, one side of the housing is provided with a first through hole, A dust-proof plate is arranged in that first through hole, the top inner wall of the first through hole is provided with a mounting groove whose one side is an opening, a connecting seat is fixedly installed on the top of the dust-proof plate, the top of the connector is rotatably mounted in the mounting groove, The bottom inner wallof the first through hole is provided with a first groove, a fixing rod is slidably installed in the first groove, the top end of the fixing rod extends into the first through hole, a wedge-shaped groove with an opening on one side is arranged at the bottom of the dust-proof plate, a clamping groove is arranged on the top inner wall of the wedge-shaped groove, and the top end of the fixing rod penetrates the wedge-shaped groove. The invention has the advantages of simple structure, reasonable design, convenient and rapid opening and closing of the dust-proof plate, thereby facilitating peopleto clean the dust-proof net, avoiding the influence of the dust-proof net on the heat dissipation of the charging pile body, and providing great convenience for people to maintain at a later stage.

The invention relates to an electronic device which comprises a shell, a first heat source, a second heat source and a flow guide structure, wherein the shell is provided with an air inlet side and an air outlet side; the first heat source is arranged in the shell and positioned between the air inlet side and the air outlet side, and the second heat source is arranged in the shell and positioned between the first heat source and the air outlet side; the flow guide structure is arranged in the shell and provided with a flow channel, and an air inlet and an air outlet are respectively formed in the two opposite ends of the flow channel; the air inlet is toward the air inlet side, and the air outlet is toward the second heat source. The flow guide structure comprises a retaining wall, and the retaining wall is arranged between the first heat source and the second heat source.

The invention discloses a charging pile with a good protecting performance and a safety measure. The charging pile with the good protecting performance and the safety measure comprises a pile body; anawning is arranged above the pile body; a solar cell panel is laid on the surface of the awning; a supporting rod is arranged on one side of the pile body; a hook is arranged on the supporting rod; an article carrying plate is arranged under the supporting rod; a charging cable groove and a fire-fighting groove are formed in one side, far away from the article carrying plate, of the pile body; acharging cable is arranged in the charging cable groove; a wire spool is arranged in the charging cable groove; a fire extinguisher is arranged in the fire-fighting groove; a base is arranged at the bottom end of the pile body; and collision-protection strips are arranged around the base. The charging pile with the good protecting performance and the safety measure has the advantages that rain andsun can be shielded to prevent the pile body from being directly flushed by rainwater and irradiated by the sun in summers, and therefore, the service life of the pile body is prolonged; and meanwhile, as the fire extinguishing equipment is mounted on the pile body, fire extinguishing treatment can be guaranteed at the first time when the pile body unexpectedly catches a fire, and therefore, thesafety is enhanced and accidental loss is reduced.

The invention discloses an efficient thickener, comprising a cone. A cross beam is fixedly connected to the top of the cone via bolts; the top of the left wall of the cone is provided with an overflownotch; one end of a support plate is mounted above the overflow notch via bolts; one side of the support plate is fixedly connected with one end of a cylinder via bolts; the cylinder is electricallyconnected with a single-chip microcomputer; a push plate is fixedly welded to the top end of a piston rod of the cylinder; a feed pipe is connected with one side of the top of the cross beam in run-through manner; the bottom end of the feed pipe is positioned in the cone; a ball bearing is fixedly connected to the top center of the cross beam via bolts; a stirring shaft is fixedly welded to the inner wall of the ball bearing; the bottom end of the stirring shaft running through the middle of the cross beam is positioned at the bottom of the cone and is fixedly connected with a rake arm via bolts; a first belt pulley is fixedly welded to the top end of the stirring shaft. The efficient thickener herein for mineral separation is compact in structure and convenient to use and is effective inpreventing a rake being compressed.

The invention discloses a one-station type cement production system which comprises a grinding aid metering proportioning device, a grinding aid stirring device, an automatic grinding agent and cementraw material proportioning device, a grinding dust collection device, a sealed tube type conveyer belt, cement tank discharge equipment, cement lifting conveying equipment and packaging filling equipment, wherein a discharge hole of the grinding aid metering proportioning device is connected with the grinding aid stirring device through a conveyer belt; the discharge hole of the grinding aid stirring device is connected with the automatic grinding agent and cement raw material proportioning device through the conveyer belt; and the discharge hole of the automatic grinding agent and cement rawmaterial proportioning device is connected with the grinding dust collection device through the conveyer belt. The one-station type cement production system has the beneficial effects that grinding aids are automatically proportioned, accurate proportions are ensured, raw material waste is avoided, meanwhile the proportioning efficiency is improved, high stirring and mixing efficiency is achieved, and the labor is saved.

The invention discloses a flue gas waste heat recovery device. The flue gas waste heat recovery device comprises a filter device and a cleaning device, wherein the filter device comprises an air inlet, movable grooves with integrated structures are formed in the two sides in the air inlet, connecting springs are fixed to the two sides in the movable grooves, a connecting ring plate is connected between the connecting springs, a vibrator is fixed to the bottom, relative to the inner sides of the connecting springs, of the connecting ring plate, and a ring groove is formed in the top, relative to the surface of the connecting ring plate, of the vibrator; through the filter device designed in a waste heat recovery device body, dust and particles can be conveniently blocked outside the waste heat recovery device, so that the situation that the use of the waste heat recovery device is affected due to the accumulation of the dust and particles in the waste heat recovery device is avoided; and through the cleaning device arranged at the bottom of the waste heat recovery device body, workers can conveniently clean the bottom surface of the waste heat recovery device body after work is finished, and the heat dissipation of the waste heat recovery device body is prevented from being influenced by the accumulation of dust.

The invention relates to the technical field of central controllers, and discloses a micro-grid central controller which comprises a central controller body, a filter device is arranged in the central controller body and comprises a filter screen, and the outer surface of the filter screen is fixedly connected with the inner wall of the central controller body. According to the central controller, through the arrangement of the special shape of the filter screen, it is guaranteed that hot air blown out from the interior of the central controller body better impacts dust attached to the surface of the filter screen, part of the dust can be blown down to be cleaned, a knocking plate is driven by an elastic film to deflect, and therefore the dust on the surface of the filter screen can be removed. The knocking frame is driven to knock the filter screen through the pulling force of the elastic rope, so that dust on the surface of the filter screen can be vibrated down, and the dust is prevented from accumulating on the surface of the filter screen to influence normal heat dissipation of the central controller body.

The invention discloses a high-voltage direct-current transformer connected with a diode clamping power switch in series, belonging to the technical field of electrical and electronic applications. The high-voltage direct-current transformer connected with the diode clamping power switch in series can be applied to direct direct-current electric energy voltage grade transformation in a high-voltage high-power occasion, such as direct-current transmission. The invention discloses a high-voltage direct-current transformer connected with a unilateral diode clamping power switch in series; a topological structure included in the invention is used for enabling voltage between capacitors included in the topological structure to be balanced and enabling voltage between power switches to be balanced; and simultaneously, the topological structure is used respectively in combination with auxiliary circuits, such that voltage at two ends of the power switches included in the topological structure can be limited. To realize bidirectional transformation of direct-current voltage of the direct-current transformer, the invention further discloses a high-voltage direct-current transformer connected with a bidirectional diode clamping power switch in series; and the technical problem to be solved by the invention is to provide the high-voltage direct-current transformer connected with the diode clamping power switch in series, which can enable voltage at two ends of the serial power switches to be balanced, limit voltage at two ends of the power switches, and satisfy high-voltage high-power application.