4782results about "Transformers/inductances cooling" patented technology

The invention discloses a transformer equipment oil leakage monitoring method and system based on image recognition, relates to the technical field of image processing, and effectively eliminates static background interference by constructing a standardized image sequence S (t), performing gray gradient analysis and pixel feature extraction, recognizing candidate oil spot areas and constructing a disturbance active score Sx. The edge structure and the morphological stability coefficient of the dynamic oil stain suspected area are further extracted, and the credible level quantitative judgment of the dynamic oil stain suspected area is realized by integrating the characteristic indexes and the morphological stability coefficient, so that the dynamic identification capability and the anti-interference capability are realized; the oil leakage identification accuracy and the system automation risk response capability in a complex environment are improved, false alarm and missing alarm are effectively avoided, and the operation safety of equipment is guaranteed.

The invention belongs to the technical field of power system control, and discloses an intelligent adjusting system and method for a transformer. The method comprises the following steps: inputting transformer operation data and weather data collected in real time into a pre-trained load prediction model to obtain predicted load data; inputting the acquired physical parameters and operation data and preset calibration parameters into a pre-constructed digital twinborn model to obtain a cooling capacity index; calculating the total heat source power of the copper loss and the iron loss according to the predicted load data and the electrical parameters of the transformer collected in real time, and dynamically quantifying the balance state of the total heat source power and the cooling capacity index through a matching degree evaluation function in combination with the cooling capacity index to obtain a matching degree evaluation index; and the problem of dynamic unbalance between the heat dissipation capability of the transformer and the load demand in an extreme environment is systematically solved.

The invention discloses a dry-type transformer. The dry-type transformer comprises a transformer body, a housing, a bottom plate and a fan, wherein the transformer body is formed by a plurality of groups of encapsulated windings in an array mode, a supporting rod is arranged at the bottom of the transformer body and allow the encapsulated windings in each group to connect with each other, the supporting rod is arranged in a crossed mode, and first threaded holes penetrate the supporting rod; the transformer body is integrally arranged in the cavity of the housing, and the bottom of the transformer body is fixedly positioned with the bottom plate, and meanwhile, the transformer body is arranged in the housing through the fan, the whole device achieves dispelling the heat in the transformerbody, and the graphite material of housing side is protruding simultaneously, and the heat from the housing is diffused quickly, and the protrusion of the array distribution can reduce the air great dust entering the inner wall of the housing through air vents.

The invention relates to the technical field of transformers and discloses a high-frequency small planar transformer which comprises a transformer body, the transformer body comprises a lower magnetic core, an upper magnetic core is installed at the top end of the lower magnetic core, and a base plate, a cooling mechanism and a distance adjusting mechanism are arranged on the inner side of the upper magnetic core and the inner side of the lower magnetic core correspondingly. The cooling mechanism is arranged on the transformer body, more excellent heat dissipation and installation functions are achieved, a movable frame and a pull block are driven to move through reset of a first spring, an insertion block is clamped into a positioning groove to form an inverted-L-shaped layout, an upper magnetic core is transversely and longitudinally limited, and the upper magnetic core can be conveniently and rapidly installed. And meanwhile, the substrate is in contact with the cavity network, the internal high-performance fluorinated liquid absorbs heat and is changed from a liquid state to a gas state, enters the condenser through the conveying pipe after phase change, is cooled by the cooling fins to be in a liquid state and then circulates back to the cavity network through the water pump and the conveying pipe, local overheating is avoided, and the heat dissipation efficiency is improved.

An electronic device has a substrate, a signal wiring and a heat radiating wiring. The substrate has one surface and the other surface opposite to the one surface. The signal wiring is formed on an insulating layer of the substrate. The heat radiating wiring is formed on the insulating layer and thermally connected to the signal wiring on a same plane as the signal wiring.

The invention relates to the technical field of direct-current transformers, in particular to a direct-current transformer for a power distribution network, which comprises an iron core, a coil and insulating oil, an insulating assembly is arranged between the coil and the iron core, and the insulating assembly comprises an insulating paperboard, an insulating cushion block, an insulating contour semi-ring and a semi-ring groove, the insulating paper board is of a structure with a round inner wall and an octagonal outer wall. Through the unique design of the insulating paperboards, the insulating partition strips and the insulating partition blocks, the longitudinal oil ducts and the transverse oil ducts are effectively reserved, the oil flow path of the transformer is optimized, the cooling efficiency is improved, and stable operation of the transformer is ensured; through the bisection splicing structure of the insulating cardboard and the overturning action of the insulating parting strip, the quick clamping assembly of the insulating cardboard and the iron core is realized, the time for adapting the winding on site is saved, the tightness and uniformity of the winding are improved, and the reliability and safety of the transformer are enhanced.

The invention discloses a high-power miniature electronic transformer, and relates to the technical field of miniature transformers, the high-power miniature electronic transformer comprises a main body, the main body comprises a lower magnetic core, the top end and the inner side of the lower magnetic core are respectively provided with an upper magnetic core and a base, one side of the outer surface of the base is provided with pins and an adjusting mechanism, and the outer surface of each pin is provided with a heat dissipation mechanism. Fixing mechanisms are arranged on the surfaces of the upper magnetic core and the lower magnetic core, more excellent compatibility and space utilization rate are achieved, a threaded rod is taken down through a rotating handle, then a clamping block is driven to move by moving a connecting rod, and then a reset spring is driven by the clamping block to stretch out and draw back on the inner side of a containing groove. Then the number of the pins can be reduced or increased according to the size of the space, adjustment of the distance between the pins is completed, then the clamping blocks drive the multiple sets of pins to move synchronously through resetting of the reset springs, and the pins of different sizes can be replaced according to needs to adapt to different placement spaces.

The invention discloses a high-safety station explosion-proof transformer and a using method, and relates to the technical field of transformers. The explosion-proof transformer comprises a transformer body arranged in an explosion-proof shell, a plurality of cooling fins are arranged on the side portion of the transformer body, the explosion-proof transformer further comprises a pressure relief unit, the pressure relief unit comprises a plurality of pressure relief boxes arranged in the explosion-proof shell, and a pressure relief assembly is arranged in each pressure relief box; a pressure monitoring sensor for monitoring and releasing the internal pressure of the transformer main body is arranged in the pressure relief assembly, and an adjusting assembly and a heat dissipation assembly are arranged on each pressure relief box. The transformer has the advantages that multi-point pressure monitoring can be carried out on the interior of the transformer body, whether high voltage occurs in the transformer body or not is monitored in real time, targeted pressure relief and explosion prevention can be carried out on a high-voltage part after the high voltage is monitored, the heat dissipation range and the heat dissipation efficiency can be improved in a targeted mode according to the pressure relief condition, and the heat dissipation efficiency is improved. Synchronous explosion-proof treatment of the inside and the outside is realized, and the explosion-proof safety is higher.

The invention provides an air-cooling and water-cooling integrated dry-type transformer, and relates to the field of transformers. The air-cooling and water-cooling integrated dry-type transformer comprises a transformer body, an annular gap is reserved between a primary winding insulating layer and a secondary winding insulating layer of the transformer body, a cooling pipeline is installed in the annular gap, a liquid inlet channel and a liquid outlet channel are arranged in the cooling pipeline, and the section of the cooling pipeline is in an 8 shape; according to the air-cooling and water-cooling integrated dry-type transformer, air cooling and water cooling are cooperatively used for heat dissipation, the heat dissipation efficiency is improved, the 8-shaped cooling pipeline is arranged, cooling liquid circularly absorbs heat of the winding through the liquid inlet channel and the liquid outlet channel, the spiral design increases the contact area and duration, the air cooling channel conducts double air cooling on the surface of the winding and the surface of the cooling liquid pipeline through the air spraying holes, and the cooling efficiency is improved. And the splayed structure of the gas spraying holes promotes gas-liquid heat exchange, the synergistic effect of assisting water cooling with air cooling and promoting air cooling with water cooling is formed, and the heat dissipation efficiency is greatly improved.

The invention belongs to the technical field of transformer heat dissipation, and particularly relates to a transformer finned radiator convenient to maintain, which comprises an oil tank, a shell, an electric turntable and the like, a wind direction sensor is arranged on the oil tank; an oil tank is fixedly connected inside the shell; a chamber is arranged between the shell and the oil tank; the chassis is fixedly connected with an electric turntable, and a rotating part of the electric turntable is fixedly connected with the shell; a plurality of air inlets are formed in the surface of the shell, and air outlets opposite to the air inlets are formed in the surface of the shell; a plurality of cooling fins are fixedly connected to each side of the oil tank, cavities are formed in the cooling fins, and the cooling fins penetrate through the shell; a plurality of ventilation holes are formed in the portion, located in the cavity, of the cooling fin. The heat dissipation device has the advantages that in the heat dissipation process, the electric rotating disc drives the oil tank and the shell to rotate, external air is introduced into the cavity and flows in the cavity, cooling oil and cooling fins in the oil tank are subjected to primary heat dissipation, and the heat dissipation effect is improved.

The invention discloses an inductor heat dissipation installation structure, an integrated heat dissipation inductor structure and a converter, and the structure comprises a liquid cooling radiator which is internally provided with a first liquid cooling flow channel, is suitable for the circulation of a cooling liquid, and is provided with a heat dissipation surface; the liquid cooling radiator is provided with a first interface and a second interface which are communicated with the inlet end and the outlet end of the first liquid cooling flow channel; the inductor shell is defined by the side plates in the circumferential direction and located on the heat dissipation face so as to be matched with the liquid cooling radiator to form a containing cavity suitable for containing the inductor body; a second liquid cooling flow channel is arranged in a side plate of the inductor shell and is suitable for circulating cooling liquid, and a third interface and a fourth interface which are used for forming an inlet end and an outlet end of the second liquid cooling flow channel are formed in the side plate; at least part of the bottom surface of the accommodating cavity is a heat dissipation surface; the first connector communicates with the third connector, and the second connector communicates with the fourth connector. By adopting the inductor heat dissipation mounting structure, the heat dissipation effect of the inductor can be improved.

The invention discloses a transformer with a noise reduction function, and relates to the technical field of transformers, the transformer comprises a shell, an air outlet and an air inlet of the shell are formed in the upper side and the lower side respectively, a connecting shell is fixedly connected to the top of the shell, and a plurality of transformer bodies are arranged in the shell; a radiator used for radiating heat of the transformer body is arranged in the shell, air cylinders symmetrically distributed along the shell are fixedly connected into the shell, and a fixing frame is fixedly connected to the side, close to an air outlet, of the interior of the shell. The multiple first sound absorption plates distributed in the N shape are arranged close to the air outlet, a complex labyrinth type airflow channel is formed, sound waves need to be reflected and refracted multiple times in the transmission process, part of sound wave energy can be consumed in each reflection, meanwhile, noise can be prevented from being transmitted out from hinge shaft seams of the first rotating plates through the noise reduction pads, and therefore the noise reduction effect is improved. The leakage of most noise is blocked, so that the effect of attenuating the noise is achieved.

The invention provides a power transformer electromagnetic loss control method and device in an intelligent power grid environment, and relates to the field of intelligent power grids, and the method comprises the steps: carrying out the cooling demand prediction of a transformer according to a predicted power load sequence and a space temperature sequence, and outputting a predicted cooling load sequence; and with meeting of the predicted cooling load sequence as a constraint and minimization of energy consumption and oil temperature fluctuation as optimization targets, cooling parameters of the forced oil cooling device are optimized, an optimal cooling parameter sequence is output, and the forced oil cooling device is controlled to dissipate heat of the transformer. The method aims to solve the technical problems that a traditional control method lacks cooling strategy dynamic adjustment capacity, temperature rise abnormity is prone to occurring in a high-load or high-temperature environment, transformer iron core loss and winding loss are remarkably increased, and electromagnetic loss is high, accurate and efficient cooling control can be achieved, the electromagnetic loss is effectively reduced, and the service life of a transformer is prolonged. And the operation efficiency and stability of the transformer are improved.

The invention discloses a high-heat-dissipation dry-type transformer. The high-heat-dissipation dry-type transformer comprises a transformer body and a supporting bottom block, wherein the supporting bottom block is used for supporting and installing the transformer body; the air guide assembly is detachably installed above the supporting bottom block and used for feeding air into the transformer body so as to accelerate air flowing; the diffusion assembly is arranged on the transformer body and used for diffusing and changing the area and direction of air supplied by the air guide assembly, and the air guide assembly can guide the air output by the air blower into the transformer body to form forced convective circulation; air entering the transformer body diffuses the coverage area range of the air through the diffusion assembly, the heat dissipation capacity of the winding and the iron core is further improved, meanwhile, the vertically-entering air is adjusted to be in a spiral rising state, the standing time of the air flow in the transformer body is prolonged through the centrifugal effect, and the heat dissipation efficiency is improved. Meanwhile, the contact area range with the winding and the iron core is increased, and the heat exchange efficiency is enhanced.

The invention relates to the technical field of transformers, in particular to a high-safety transformer which comprises a transformer body and a monitoring mechanism, and the monitoring mechanism comprises a processor, a base, a control core, a driving wheel and a visual assembly. The base is provided with a containing cavity, an input flow channel and an output flow channel, the input flow channel and the output flow channel extend to the containing cavity, and the other ends of the input flow channel and the output flow channel communicate with an oil tank. A filtering assembly is arranged in the output flow channel, and the visual assembly is embedded in the inner wall of the output flow channel. The control core is rotationally matched with the containing cavity and provided with a radial through hole, and a control rod is arranged in the radial through hole in a sliding fit mode. The driving wheel is rotatably matched with the base. One end of the control rod is eccentrically hinged to the driving wheel. The visual component is used for acquiring image data of the surface of the filter component, and the processor is used for evaluating the impurity content in the insulating oil according to the impurity quality of the surface of the filter component. According to the utility model, the automatic monitoring of the insulating oil can be realized in the operation process, prompts can be given out in time, and the safety supervision strength is effectively improved.

The invention relates to the technical field of transformers, in particular to an oil-immersed power transformer which comprises a hollow rod, a first round rod, a first piston, a first spring, a cylinder, a second round rod, a second piston, a limiting block and a ventilation assembly. A hollow rod is fixedly connected to the diaphragm; a first round rod is slidably connected to the hollow rod. A first piston is fixedly connected to the first round rod and makes contact with the lower end of the hollow rod. A cylinder is fixedly connected to the box body; through cooperation of the hollow rod, the first round rod, the first piston, the first spring, the cylinder, the second round rod, the second piston, the second spring and the limiting block, pressure relief operation can be automatically completed when pressure in the transformer body is increased abnormally, and therefore the transformer body can be protected; and the transformer oil sprayed out at a high speed can be intercepted and prevented from being sprayed to the outside to pollute the environment, the intercepted transformer oil is gathered on the upper side of the diaphragm, manual collection of the transformer oil can be facilitated, and waste is avoided.

The invention relates to the technical field of transformers, in particular to a transformer with a high-temperature early warning device, which comprises a base and a transformer body fixedly mounted on the base, and further comprises a temperature control system, and the temperature control system is used for monitoring the temperature of the transformer body and dynamically analyzing the transformer body. A plurality of sets of cooling fins are fixedly connected to the outer portion of the transformer body, and a plurality of sets of mounting frames are fixedly connected to the base. In the invention, aiming at the defect of incomplete monitoring of a traditional temperature sensor, the temperature control system can realize comprehensive temperature monitoring and dynamic operation analysis of the transformer body, accurately capture internal complex temperature field distribution, and avoid the problem of insulation aging acceleration caused by local high-temperature leak detection; compared with an existing single threshold value control mode, intelligent early warning is achieved through a dynamic analysis technology, a control strategy can be adjusted according to real-time temperature changes, and the limitation that a traditional method lacks state perception is overcome.

The invention belongs to the technical field of transformer heat dissipation control, and particularly discloses a transformer operation intelligent heat dissipation control system, which comprises a heat dissipation equipment layout module, a temperature monitoring module, a hot spot identification module, a hot spot diffusion analysis module, an airflow control module and an execution feedback module which are sequentially coupled and connected, an infrared thermal imaging sensor array and a fan group are arranged in a transformer according to heat source distribution, surface temperature distribution is collected in real time through the infrared thermal imaging sensor array, and a hot spot area and the diffusion direction of the hot spot area are recognized; and upstream, midstream and downstream fans are selected, and a directional relay cooling airflow chain is constructed through time sequence difference pulse and rotating speed hierarchical control, so that prospective intervention on a current hot spot and a potential diffusion path is realized, heat dissipation control has local accurate regulation and control capability with dynamic evolution characteristics, and the fan energy consumption is reduced while the heat dissipation efficiency is improved.

The invention provides a self-monitoring transformer, and belongs to the technical field of transformers. Wherein the piston is arranged on the first reference pipe, and the piston rod penetrates through the sealing plate. The filter plate is arranged in the first reference pipe. The piston rod is provided with a conveying flow channel, and the area between the piston and the filter plate is communicated with the conveying flow channel. A first one-way assembly is arranged in the conveying flow channel. A second one-way assembly is arranged at the end, away from the sealing plate, of the first reference pipe. The plug rod is driven by the driving assembly in a reciprocating mode. The visual assembly is arranged in the first reference tube. The processor is used for judging the health degree of the insulating oil in the transformer body according to the image data acquired by the visual assembly. The transformer insulating oil monitoring system can continuously and autonomously monitor the actual condition of the transformer insulating oil, avoids the defects of manual monitoring, and effectively improves the operation safety of the transformer.

The utility model discloses a dry type three-dimensional roll iron core transformer, including transformer body, shell and radiating fin, transformer body is fixedly connected in the interior of shell, shell is triangular setting, radiating fin all is provided on the triangular face of shell, the inner side of radiating fin is fixedly connected with slider, and the slider is fixed in the shell. The two sliding blocks are symmetrically arranged about the central axis of the cooling fin, and sliding grooves used in cooperation with the sliding blocks are formed in the surface of the shell. According to the utility model, by arranging the modularized radiating fins, the radiating fins can be singly replaced, so that the replacement cost of the radiating fins is reduced, and the problems that in the actual use process, the equipment adopts an integrated structure of the shell and the radiating fins, when an operator needs to replace the radiating fins, the whole shell needs to be replaced, and the replacement cost is reduced are solved. And the radiating fins on one side cannot be replaced independently, so that the later maintenance cost is increased.

The invention relates to the technical field of transformers, and particularly discloses a small-size and strong-short-circuit-current-resistant transformer, which comprises a transformer body, the transformer body comprises an iron core, a plurality of iron cores, a plurality of short-circuit-current-resistant coils, a plurality of short-circuit-current-resistant coils and a plurality of short-circuit-current-resistant coils, the insulating cylinder is arranged on the outer side of the core column in a sleeving manner; the winding sleeves the outer side of the insulating cylinder, the winding comprises a circular coil wound on the outer wall of the insulating cylinder and a plurality of layers of elliptical coils wound on the outer side of the circular coil, and the trend of the elliptical coils is parallel to magnetic lines generated by the circular coil; heat dissipation channels parallel to the axis of the core column are formed between the circular coils and the oval coils and between every two adjacent oval coils. The space of the core column can be effectively utilized, the elliptical ring can fill the external space, the magnetic field trend of the outer elliptical coil is parallel to that of the inner circular coil, high-frequency loss caused by the proximity effect and eddy-current loss during short circuit can be effectively reduced, and the normal operation efficiency and short-circuit endurance capacity of the transformer are improved.

A dry-type transformer relates to the technical field of dry-type transformers and comprises an iron core, an upper clamp and a lower clamp are arranged at the upper end and the lower end of the iron core respectively and detachably connected with the iron core, three low-voltage windings sleeve the outer side of the iron core, and high-voltage windings sleeve the outer sides of the low-voltage windings. A plurality of cushion blocks are detachably arranged at the bottom of the upper clamping piece, a plurality of supporting assemblies are arranged at the top of the lower clamping piece, the tops and the bottoms of the low-voltage winding and the high-voltage winding abut against the cushion blocks and the supporting assemblies correspondingly, six tapping taps arranged in a staggered mode are arranged on the outer wall of the high-voltage winding, inserting holes are formed in the ends of the tapping taps, and two supporting U-shaped plates are arranged on the side of the high-voltage winding. The upper ends and the lower ends of the supporting U-shaped plates are detachably connected with the upper clamping piece and the lower clamping piece correspondingly, and a lifting U-shaped plate is arranged between the two supporting U-shaped plates. The problem that the transformation ratio adjusting process of an existing dry-type transformer is complex is solved; and cooling air is not uniformly distributed, so that the heat dissipation effect is poor.

The utility model belongs to the technical field of electromagnet coils, particularly relates to a magnetic suspension electromagnet coil, and aims to solve the problems that a coil with a large number of turns can generate a strong magnetic field under the same current, so that the coil with a large number of turns can be adopted to generate a strong and stable magnetic field, but the large number of turns can cause some problems. In order to solve the problems that the energy loss is further increased and even the coil is possibly damaged due to the fact that the resistance of the coil is increased and heating is increased, the utility model provides the following scheme: the coil comprises a hollow framework, a plurality of turns of coils are wound on the hollow framework, and a protective sleeve is wound on the whole outer wall of the plurality of turns of coils; and the outer wall of a single copper wire of the multi-turn coil is covered and sprayed with an insulating layer. When the magnetic suspension electromagnet coil is used, through the design of the protective sleeve, the ceramic insulating coating, the heat dissipation fins, the heat extraction fan, the heat dissipation holes and the like which are made of polyimide film materials, the heat dissipation efficiency and durability of the coil are effectively improved, and stable operation of a magnetic suspension electromagnet is ensured.

The invention relates to the technical field of oil-immersed power transformers, in particular to an oil-immersed power transformer which comprises an oil-immersed power transformer body, a transformer oil conservator is fixedly mounted on the oil-immersed power transformer body, and a fixing frame is fixedly connected to the transformer oil conservator. The sunshade curtains are fixedly connected to the two sides of one end of the fixing frame, the transmission mechanism is fixedly connected to the fixing frame, the curtain pulling frame is arranged on the fixing frame in a sliding fit mode, the oil conservator cleaning mechanism is arranged at the bottom end of the middle of the curtain pulling frame in a sliding fit mode, and the air guide mechanisms are fixedly connected to the fixing frame. The curtain pulling frame is driven by the transmission mechanism to move, so that the sunshade curtain can be unfolded to block above the transformer oil conservator, and sunshade protection is performed on the transformer oil conservator. Direct irradiation of the sun to the oil conservator can be effectively shielded, sunlight radiation heat transfer is reduced, the temperature of the oil conservator is prevented from being too high, and then the temperature of oil in the transformer is effectively reduced.

The invention belongs to the technical field of transformer decontamination, and particularly relates to a cleaning and decontamination structure suitable for oil change of an oil-immersed transformer. Comprising a shell, the shell is provided with an oil conservator, the lower side of the shell is fixedly connected and communicated with an oil discharge pipe, fixing plates distributed in a rectangular shape are arranged in the shell, the fixing plates are fixedly connected with scrapers, the two symmetrically-distributed fixing plates are fixedly connected with sliding rods, the fixing plates are fixedly connected with fixing blocks, and the sliding rods are fixedly connected with the fixing blocks. The fixing block is in spline connection with a driving rod, the driving rod is fixedly connected with pressing rods distributed at equal intervals, and the scraping plate is fixedly connected with guide blocks distributed at equal intervals. The extrusion rods are driven by the driving rods to extrude the adjacent guide blocks, so that the scraping plates are gradually close to the inner wall of the shell, oil dirt on the inner wall of the shell is scraped layer by layer, the oil dirt scraping effect is improved, and the situation that a large amount of oil dirt is accumulated below the scraping plates and is difficult to scour subsequently is avoided in the layer-by-layer scraping mode.

The invention relates to the field of transformers, in particular to an oil-immersed transformer which comprises a shell, a transformer core is installed in the middle of the interior of the shell, first heat dissipation fins which are evenly distributed are arranged on the two sides of the shell correspondingly, cross rods are fixedly connected to the upper portions and the lower portions of the first heat dissipation fins correspondingly, and sliding rods are slidably connected to the interiors of the cross rods correspondingly; the middles of the sliding rods are provided with guide grooves, the two ends of each sliding rod are provided with balancing weights, the middles of the first cooling fins are provided with openings, the middles of the openings are rotationally connected with rotating shafts, one sides of the middles of the rotating shafts are fixedly connected with rotating plates, and the upper portions and the lower portions of the peripheries of the rotating shafts are provided with tooth grooves. According to the invention, the problems that the heat dissipation of the internal and external insulating oil is not uniform when the traditional insulating oil stands, and the internal high-temperature insulating oil can continuously cause negative effects on the heat dissipation process are solved.

The invention belongs to the technical field of transformers, and discloses an explosion-proof sealed oil-immersed transformer which comprises an oil-immersed transformer body, a mounting frame is fixedly mounted at the top of the oil-immersed transformer body, an oil conservator is fixedly mounted on the mounting frame, the bottom of the oil conservator communicates with an explosion-proof oil pipe, and the explosion-proof oil pipe communicates with an oil storage tank. The explosion-proof oil pipe penetrates through and extends into the oil-immersed transformer main body, an oil pump is arranged on the explosion-proof oil pipe, an automatic pressure relief mechanism is arranged on the oil-immersed transformer main body, and the automatic pressure relief mechanism comprises a pressure relief valve cylinder. According to the scheme, through a spring-sealing plug linkage structure in the automatic pressure relief mechanism, when the internal pressure exceeds a threshold value, a sealing plug is pressed to move upwards, a pressure relief hole communicates with a pressure relief cavity, high-pressure gas is directionally exhausted through a one-way exhaust valve, and shell burst is avoided; after the pressure recovers, the reset spring automatically resets the sealing plug, the sealing performance is maintained, external impurities are prevented from invading, manual intervention is not needed, and repeated and reliable pressure relief is achieved.

The invention relates to the technical field of transformers, in particular to a power electronic transformer with a shielding structure, which mainly comprises a transformer body, a radiator is fixedly mounted on the side surface of the transformer body, a cooling fan is fixedly mounted at the end part of the radiator, and a weak current box is fixedly mounted at the end part of the transformer body. Double oil mist separation is achieved through the deoiler, one is that spiral ascending airflow is formed through guiding of the jet pipe, oil mist in gas is removed according to the centrifugal demisting principle, and the other is that residual oil mist in the gas is secondarily intercepted through the filter element pipe, so that the oil mist in respiratory airflow can be effectively removed, the oil mist interception efficiency is remarkably improved, and the oil mist separation efficiency is greatly improved. Meanwhile, the elastic membrane of the buffer can absorb sudden pressure change of the oil conservator through elastic deformation, so that the pressure fluctuation amplitude is reduced when the load changes suddenly, pulverization or structural damage of the drying agent caused by strong airflow impact is avoided, it is ensured that the moisture absorption drying agent is always in a clean and stable working environment, and the efficient dehumidification capacity is maintained.

The invention discloses a manufacturing method of an encapsulation type driver transformer with high heat dissipation efficiency, and belongs to the technical field of power electronic equipment manufacturing. The invention aims to solve the technical problems of low heat dissipation efficiency and insufficient long-term reliability caused by limited heat-conducting property of a potting material, simple surface heat dissipation structure and difficulty in coordination of internal thermal stress of the existing driver transformer. The method comprises the following steps: constructing a three-dimensional digital model of a reinforced heat dissipation structure with a boss array and a groove array, and preparing a corresponding forming mold; a magnetic core and a winding are used as inserts to be positioned in a mold cavity, insulating colloids with different mechanical and heat conduction characteristics are poured in a vacuum environment in batches, internal gaps are fully filled with flexible colloids and stress is buffered through a segmented curing process, meanwhile, high-heat-conduction rigid colloids form an external main body and a heat dissipation structure, and an integrated potting body is formed. The method is used for manufacturing the driver transformer suitable for scenes with high power density and high heat dissipation requirements, and the heat dissipation capability and the operation reliability of the driver transformer can be remarkably improved.

The invention relates to the technical field of transformers, in particular to a transformer convenient to disassemble and assemble, which comprises a transformer body, a supporting frame is fixedly mounted below the transformer body, limiting grooves are formed in two sides of the supporting frame, limiting plates are slidably mounted in the limiting grooves, and a driving mechanism is arranged between the two limiting plates. The device comprises a supporting frame, a rotatable rotating shaft is arranged in the supporting frame, fan blades are fixedly installed outside the rotating shaft, groove bodies are formed in the two sides of the lower portion of the supporting frame, two sets of roller shafts are rotatably installed in the groove bodies, the two sets of roller shafts are jointly and movably sleeved with a conveying piece, and a heat dissipation opening is formed in the bottom of the supporting frame. According to the transformer convenient to disassemble and assemble, by arranging the limiting plate, the supporting plate can drive the limiting plate to move after making contact with the limiting plate, so that the limiting plate can clamp the place where installation is needed, the transformer body is convenient to assemble and disassemble, and operation is easy.