CN117524650A - Three-phase isolation high-impedance transformer with built-in reactor - Google Patents
Three-phase isolation high-impedance transformer with built-in reactor Download PDFInfo
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- CN117524650A CN117524650A CN202311778039.1A CN202311778039A CN117524650A CN 117524650 A CN117524650 A CN 117524650A CN 202311778039 A CN202311778039 A CN 202311778039A CN 117524650 A CN117524650 A CN 117524650A
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- 238000002955 isolation Methods 0.000 title claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 5
- 241000883990 Flabellum Species 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 9
- 238000007664 blowing Methods 0.000 abstract description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 12
- 238000003825 pressing Methods 0.000 description 8
- 230000008093 supporting effect Effects 0.000 description 8
- 229910000976 Electrical steel Inorganic materials 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000001976 improved effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses a three-phase isolation high-impedance transformer with a built-in reactor, which relates to the technical field of transformers and comprises a protective cover, wherein a transformer main body and a reactance assembly are arranged in the protective cover, the top of the protective cover is fixedly connected with a plurality of cylinder bodies, a plurality of locking rings which are uniformly distributed are sleeved on a first insulating cylinder, clamping grooves are formed in two ends of an opening of each locking ring, a third cylinder body is arranged between the two clamping grooves, and two ends of each third cylinder body are respectively provided with a cavity. According to the invention, through the cylinder body, the rotation of the plurality of belt wheels drives the first driving wheel and the second driving wheel to rotate through the first driving belt, the second driving wheel drives the connecting wheel to rotate through the second driving belt, and meanwhile, the connecting wheel rotates together with the rotating shaft, so that the fan blades rotate under the action of the rotating shaft, the fan blades blow air in the first blower and the second blower to the first cooling bracket and the second cooling bracket through the ventilation pipes, and continuously dissipate heat through blowing air into the ventilation grooves through the blowing holes.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a three-phase isolation high-impedance transformer with a built-in reactor.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil and an iron core, and the main functions of the transformer are as follows: the transformer is basic equipment of power transmission and distribution, is widely applied to the fields of industry, agriculture, traffic, urban communities and the like, and has a large energy-saving potential, wherein the transformer loss accounts for about 40% of the power transmission and distribution power loss.
Chinese patent application No. 202111178536.9 discloses a high impedance transformer with built-in reactor, comprising: three coil assemblies arranged in such a way that the center point is located at the apex of the regular triangle, and a fixing assembly for connecting the coil assemblies; the fixing assembly comprises an upper pressing plate positioned above the coil assembly, an upper clamping piece positioned on the upper pressing plate, a lower supporting plate positioned below the coil assembly, a lower clamping piece positioned below the lower supporting plate and three rod-shaped tensioning mechanisms penetrating through the coil assembly, one end of each rod-shaped tensioning mechanism penetrates through the upper pressing plate to be fixedly connected with the upper clamping piece, and the other end of each rod-shaped tensioning mechanism penetrates through the lower supporting plate to be fixedly connected with the lower clamping piece. The invention adopts the built-in series reactor, and the reactor body adopts the delta arrangement, thereby obviously reducing the weight, having high production efficiency, low cost and reliable performance. And the processing is simple, the noise of the product is reduced, the volume and the mass are small, and the movement and the installation are convenient. And, adopt the setting of "article" font, can ensure that three-phase magnetic leakage balances each other, avoid taking place the overheated phenomenon, reduce the loss, can also reduce the potential safety hazard, but the transformer can produce great heat its iron core when using, adopts the setting of "article" font to make the heat gather easily and intensifies, influences the normal work of transformer and reactor.
The utility model provides a chinese patent of 202010852925.4 discloses a take transformer of water-cooling reactor, its structure includes the wiring end, a transformer, the lightning rod is linked firmly with the bottom of transformer, the wiring end is installed in the upper end position of transformer, the high strength electric current that produces through the radiating mechanism when the wiring end takes place the short circuit can lead into inside the separation piece fast, thereby make the separation piece break away from with heat dissipation pottery fast backward because of intensity decompression, and the separation piece after breaking away from can adsorb the surface at the radiating mechanism with the joint plate, so the air current that makes the wobble plate produce, can dispel the heat inside the separation piece, the recoil that breaks away from the bottom plate through the separation piece can make the linkage piece rock back and forth under the cooperation of elastic strip, and rock back and forth through the cooperation of linkage piece, thereby can lead into the heat on the play the bottom plate and lead into on the compound elastic strip, but the transformer is the switch-on state when using, ageing or reveal and become the conductor easily, thereby influence the work of transformer and reactor for a long time.
When the transformer is in normal operation, the iron core generates heat due to iron loss, and the larger the weight and the volume of the iron core, the more heat generated by the iron core is, the transformer is easy to age at the temperature of more than 95 ℃, so that the temperature of the surface of the iron core is controlled below the temperature as much as possible, and the heat of the iron core can be rapidly emitted by the heat-radiating structure of the iron core. However, the transformer can be better protected by continuously radiating according to the working temperature of the transformer, the safety performance is improved, the requirements of energy conservation and protection are met, and the three-phase isolation high-impedance transformer with the built-in reactor is provided.
Disclosure of Invention
The invention aims to provide a three-phase isolation high-impedance transformer with a built-in reactor, which aims to solve the problems that the temperature of the transformer is easily aged above 95 ℃ and short-circuit protection is caused by heat generated by iron loss in the iron core proposed in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a three-phase isolation high impedance transformer of built-in reactor, includes the protection casing, be provided with transformer main part and reactance subassembly in the protection casing, the top fixedly connected with of protection casing is a plurality of cylinders, every the cylinder body is including first cylinder body, the top fixedly connected with second cylinder body of first cylinder body, the bottom fixedly connected with heat collecting plate of first cylinder body, the inside heat insulating board that is provided with of first cylinder body, the top fixedly connected with sleeve of first cylinder body, sliding connection has the slide bar in the sleeve, the bottom and the heat insulating board fixed connection of slide bar, the top fixedly connected with backup pad of first cylinder body, the backup pad internal rotation is connected with the band pulley, the both sides eccentric first stand and the second stand that are provided with of band pulley, the articulated first connecting rod in the slide bar, first connecting rod and first stand rotate to be connected, sealed sliding connection has first piston in the second cylinder body, first piston fixedly connected with first piston rod, the one end of first piston rod articulates there is the second connecting rod, second connecting rod rotate with the second stand.
Preferably, the transformer main part is provided with the iron core, the cover is equipped with first insulating cylinder in the iron core outside, the cover is equipped with evenly distributed's a plurality of locking rings on the first insulating cylinder, the draw-in groove has been seted up at locking ring opening part both ends, is located two be provided with the third cylinder body between the draw-in groove, the cavity has been seted up respectively at the both ends of third cylinder body, every equal sealing sliding connection has the second piston in the cavity, every equal fixedly connected with second piston rod on the second piston, second piston rod and third cylinder body sliding sealing connection, the second piston rod is located the outside fixedly connected with fixed block of third cylinder body, articulated in the fixed block have the movable block, the other one end of movable block articulates there is the fixture block, every equal sliding connection of fixture block is in the draw-in groove.
Preferably, the locking ring outside cover is equipped with low-voltage coil group, low-voltage coil group outside cover is equipped with the second insulating cylinder, second insulating cylinder outside cover is equipped with high-voltage coil group, iron core top both sides fixedly connected with goes up the fixed bolster, the bottom both sides fixedly connected with lower fixed bolster of iron core, go up the fixed bolster and all be provided with a plurality of hold-down assembly in the outside of lower fixed bolster, hold-down assembly includes the cushion, the last plane fixedly connected with gasbag support of cushion, the gasbag support is provided with dodges the hole, dodges downthehole spring that is provided with, plane fixedly connected with clamp plate on the gasbag support, the both ends of spring respectively with cushion and clamp plate contact, the bottom fixedly connected with a plurality of supports of transformer main part, every support and lower fixed bolster fixed connection, reactance assembly and support fixed connection, reactance assembly includes first reactor and second reactor and third reactor.
Preferably, the bottom fixedly connected with first cooling support and the second cooling support of every, the bottom of first cooling support and second cooling support all with the interior bottom surface fixed connection of protection casing, the top of first cooling support and second cooling support all is provided with a plurality of blast holes, the first hair-dryer of one end fixedly connected with of first cooling support, the one end fixedly connected with second hair-dryer of second cooling support, all be provided with the flabellum in first hair-dryer and the second hair-dryer, fixedly connected with pivot on the flabellum, first hair-dryer and second hair-dryer are mirror image state distribution, all fixedly connected with ventilation pipe respectively with each of first hair-dryer and second hair-dryer, every the ventilation pipe all runs through protection casing and outside intercommunication, all be provided with the filter screen in the every ventilation pipe.
Preferably, the top of protection casing fixedly connected with support frame, the top of protection casing is located between the support frame and has been seted up dodges the groove, the support frame rotation is connected with first drive wheel and second drive wheel, first drive wheel and second drive wheel fixed connection, every the band pulley is connected through first drive belt with first drive wheel.
Preferably, the rotating shafts of the first blower and the second blower are fixedly connected through a connecting wheel, the connecting wheel is in transmission connection with the second driving wheel through a second driving belt, and the second driving belt penetrates through the avoidance groove.
Preferably, the high-voltage coil set and the low-voltage coil set are both provided with ventilation grooves, the ventilation holes correspond to the ventilation grooves, the low-voltage coil set is fixedly connected with copper bars, six taps are arranged on the outer side of each high-voltage coil set, and every two taps are connected through a high-voltage connecting rod.
Preferably, a plurality of insulators are respectively arranged on two sides of the upper fixing support, the high-voltage coil assembly is fixedly connected with a high-voltage terminal, and the high-voltage terminal is fixedly connected with the insulators.
Preferably, the two sides of the protective cover are respectively provided with a protective door, and the top of the protective cover is provided with a low-voltage wire passing hole and a high-voltage wire passing hole.
Preferably, the air vents are arranged on two sides of the protective cover, the air vents on two sides of the protective cover are corresponding, the air vent filter plates are arranged on two sides of the top of the protective cover, and the filter holes of each air vent filter plate are corresponding.
The beneficial effects of the invention are as follows:
1. the invention prevents dust and floaters in the air from adhering to the transformer main body 2 and the reactance component through the protective cover, prevents the transformer main body and the reactance component from generating partial discharge, and prevents other workers from touching the transformer main body by mistake because the adhered dust impurities are easy to generate conductors when being wetted, and can effectively control the fluctuation of the output voltage of the transformer main body by changing the impedance of a circuit to control the voltage and the current in the circuit through connecting the first reactor in series at the low-voltage output end of the transformer main body, improve the stability and the reliability of a power system, effectively reduce the line current, avoid the fault and the power failure of the power system, connect the second reactor between the neutral point and the ground of the transformer main body, supply inductive current when one phase of a three-phase power grid is grounded, compensate the capacitive current flowing through the grounding point, prevent the arc from being easy to ignite, and eliminate the overvoltage caused by repeated re-ignition of the arc, and the third reactor is used for connecting the external electrical equipment in series, can limit the starting current and prevent the damage of the external equipment.
2. According to the invention, when the locking ring transformer main body works, the iron core heats, the plurality of locking rings which are uniformly distributed are sleeved on the first insulating cylinder, the iron core is wrapped by the locking rings, the third cylinder body is tightly attached to the iron core, diethyl ether is placed in a space formed between the second piston and the second piston rod in the cavity, and when the diethyl ether is in thermal expansion, the two second pistons in the third cylinder body and the second piston rod are pushed to be close to each other, so that a clamping block in the clamping groove moves together with the second piston rod, a gap between the third cylinder body and the locking rings is reduced, the iron core is continuously locked, and gaps of silicon steel sheets of the iron core are prevented, so that the iron core is tightly attached, and therefore, magnetic saturation and iron loss are prevented, noise is reduced, and the integral insulating performance of the transformer main body is stabilized.
3. According to the invention, through the cylinder body, the rotation of the plurality of belt wheels drives the first driving wheel and the second driving wheel to rotate through the first driving belt, the second driving wheel drives the connecting wheel to rotate through the second driving belt, and meanwhile, the connecting wheel rotates together with the rotating shaft, so that the fan blades rotate under the action of the rotating shaft, the fan blades blow air in the first blower and the second blower to the first cooling bracket and the second cooling bracket through the ventilation pipes, and continuously dissipate heat through blowing air into the ventilation grooves through the blowing holes.
Drawings
FIG. 1 is a schematic diagram of a three-phase isolation high-impedance transformer with a built-in reactor according to the present invention;
fig. 2 is a schematic diagram of a reactance module according to the present invention;
FIG. 3 is a schematic diagram of a second belt structure according to the present invention;
fig. 4 is a schematic view of a first blower according to the present invention;
FIG. 5 is a schematic view of the structure of the ventilating duct according to the present invention;
FIG. 6 is a schematic view of a locking ring according to the present invention;
fig. 7 is a schematic diagram of a second blower according to the present invention;
FIG. 8 is a cross-sectional view of the cylinder structure of the present invention;
figure 9 is a partial cross-sectional view of a locking ring of the present invention;
fig. 10 is a cross-sectional view of the compression assembly of the present invention.
In the figure: 1. a protective cover; 101. a vent hole; 102. a vent filter plate; 2. a transformer body; 3. a reactance assembly; 301. a first reactor; 302. a second reactor; 303. a third reactor; 4. a cylinder; 401. a first cylinder; 402. a second cylinder; 403. a heat insulating plate; 404. a sleeve; 405. a slide bar; 406. a support plate; 407. a belt wheel; 408. a first link; 409. a first piston; 410. a first piston rod; 411. a second link; 412. a first upright; 413. a second upright; 414. a heat collecting plate; 5. an iron core; 6. a first insulating cylinder; 7. a locking ring; 701. a clamping groove; 702. a third cylinder; 703. a chamber; 704. a second piston; 705. a second piston rod; 706. a fixed block; 707. a movable block; 708. a clamping block; 8. a low voltage coil group; 801. a copper bar; 9. a second insulating cylinder; 10. a high voltage coil group; 111. a high voltage terminal; 112. a tap; 113. a high pressure connecting rod; 11. an upper fixing bracket; 12. a lower fixing bracket; 13. a compression assembly; 131. a cushion block; 132. an air bag bracket; 133. avoidance holes; 134. a spring; 135. a pressing plate; 14. a bracket; 15. a first cooling rack; 16. a second cooling rack; 17. a blowing hole; 18. a first blower; 19. a second blower; 20. a fan blade; 201. a rotating shaft; 21. a ventilation pipe; 22. a filter screen; 23. a support frame; 24. an avoidance groove; 25. a first driving wheel; 26. a second driving wheel; 27. a first belt; 28. a fifth wheel; 29. a second belt; 30. a ventilation groove; 31. an insulator; 32. a protective door; 33. a low voltage via; 34. high voltage via holes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
As shown in fig. 1 and 2, the three-phase isolation high-impedance transformer with the built-in reactor provided by the embodiment comprises a protective cover 1, wherein a transformer main body 2 and a reactance component 3 are arranged in the protective cover 1, the protective cover 1 is used for preventing dust and floaters in air from adhering to the transformer main body 2 and the reactance component 3, thereby preventing the transformer main body 2 and the reactance component 3 from generating partial discharge, and adhering dust impurities are easy to generate conductors to cause partial discharge when being wetted, so that other staff are prevented from mistakenly touching the transformer main body 2.
As shown in fig. 1 and 4, two sides of the protection cover 1 are respectively provided with a protection door 32, and a low-voltage wire through hole 33 and a high-voltage wire through hole 34 are formed at the top of the protection cover 1.
As shown in fig. 2, the bottom of the transformer main body 2 is fixedly connected with a plurality of brackets 14, each bracket 14 is fixedly connected with the lower fixed bracket 12, the reactance component 3 is fixedly connected with the brackets 14, the reactance component 3 comprises a first reactor 301, a second reactor 302 and a third reactor 303, when the transformer main body 2 is to be operated and connected, a power supply is disconnected before the connection, the first reactor 301 is connected in series with a low-voltage output end of the transformer main body 2, the voltage and the current in a circuit are controlled by changing the impedance of the circuit, the fluctuation of the output voltage of the transformer main body 2 can be effectively controlled, the stability and the reliability of a power system are improved, the line current can be effectively reduced, faults and power failure of a power system are avoided, the second reactor 302 is connected between a neutral point of the transformer main body 2 and the ground, the inductive current is supplied when one phase of a three-phase power grid is grounded, the capacitive current flowing through the ground is compensated, the capacitive current flowing through the ground point is not easy to ignite, the overvoltage caused by the repeated arcing is eliminated, the third reactor 303 is used for being connected in series with an external electric device, the starting current can be limited, and the external device can be prevented from being damaged.
As shown in fig. 2, 4, 6, 9, the transformer main body 2 is provided with an iron core 5, a first insulating cylinder 6 is sleeved outside the iron core 5, a plurality of locking rings 7 which are uniformly distributed are sleeved on the first insulating cylinder 6, clamping grooves 701 are formed at two ends of an opening of each locking ring 7, a third cylinder 702 is arranged between the two clamping grooves 701, two ends of each third cylinder 702 are respectively provided with a chamber 703, a second piston 704 is hermetically connected in each chamber 703, a second piston rod 705 is fixedly connected on each second piston 704, the second piston rods 705 are in sliding sealing connection with the third cylinders 702, the second piston rods 705 are fixedly connected with a fixed block 706 outside the third cylinders 702, movable blocks 707 are hinged in the fixed blocks 706, the other ends of the movable blocks 707 are hinged with clamping blocks 708, each clamping block 708 is slidably connected in the clamping groove 701, the iron core 5 is made of silicon steel sheets with larger resistivity, the silicon steel sheets are mutually overlapped, the transformer main body 2 heats the iron core 5 when working, the temperature is unstable, the silicon steel sheets change, the temperature of the silicon steel sheets can influence the change, when the magnetic flux density is high, the magnetic flux can lead to the high-density steel sheets, the transformer main body 2 can further reduce the magnetic field loss, and the magnetic field loss can further reduce the vibration of the transformer main body 2, and the transformer main body can further reduce the vibration loss, and the vibration loss can further reduce the vibration of the transformer main body 2, and the vibration loss can further reduce the vibration loss when the transformer main body 2, and the magnetic flux can further reduce the vibration loss, and the vibration loss can cause the main body 2, and the vibration loss can further reduce the vibration loss when the main body is more greatly and the vibration-reducing the vibration loss due to the magnetic-absorbing material, the iron core 5 heats when the transformer main body 2 works, a plurality of locking rings 7 which are uniformly distributed are sleeved on the first insulating cylinder 6, the iron core 5 is wrapped by the locking rings 7, diethyl ether is placed in a space formed between the second piston 704 and the second piston rod 705 in the chamber 703, when the diethyl ether is heated and expanded, the two second pistons 704 in the third cylinder 702 and the second piston rod 705 are pushed to be close to each other, a clamping block 708 in the clamping groove 701 moves together with the second piston rod 705, a gap between the third cylinder 702 and the locking rings 7 is reduced, the iron core 5 is continuously locked, and the generation of a silicon steel sheet gap of the iron core 5 is prevented, so that the iron core 5 is more tightly attached, magnetic saturation and iron loss are prevented, noise is reduced, and the integral insulating performance of the transformer main body 2 is stabilized.
As shown in fig. 3, 6 and 10, the locking ring 7 is sleeved with the low-voltage coil set 8, the outer side of the low-voltage coil set 8 is sleeved with the second insulating cylinder 9, the outer side of the second insulating cylinder 9 is sleeved with the high-voltage coil set 10, two sides of the top of the iron core 5 are fixedly connected with the upper fixing support 11, two sides of the bottom of the iron core 5 are fixedly connected with the lower fixing support 12, the outer sides of the upper fixing support 11 and the lower fixing support 12 are both provided with a plurality of compression assemblies 13, each compression assembly 13 comprises a cushion block 131, the upper plane of the cushion block 131 is fixedly connected with an air bag support 132, the air bag support 132 is provided with an avoidance hole 133, a spring 134 is arranged in the avoidance hole 133, the upper plane of the air bag support 132 is fixedly connected with a pressing plate 135, two ends of the spring 134 are respectively contacted with the cushion block 131 and the pressing plate 135, the upper fixing support 11 and the lower fixing support 12 are further fastened, the upper fixing support 11 and the lower fixing support 12 are prevented from being loose to affect the normal use of the iron core 5, when the transformer main body 2 does not work, the spring 134 presses the cushion block 131 and the pressing plate 135, nuts of the upper fixing support 11 and the lower fixing support 12 are fixed, the upper fixing support 11 and the lower fixing support 12 are further pressed, and the upper fixing support 12 are further pressed by the nuts, and the upper fixing support 11 and the lower fixing support 12 are further pressed by the pressing the upper fixing support 11 and the upper fixing support 12, and the lower fixing support 11, and the lower fixing support 2, and the fixing support 2.
Example two
The inventor finds that when the above embodiment is actually used, the intermittent air cooler is adopted to cool the transformer main body 2, so that the temperature of the transformer main body 2 cannot be timely reduced, the transformer main body 2 can have good working temperature after waiting for the air cooler to work for a period of time, and the transformer main body 2 cannot be continuously cooled along with the work of the transformer main body 2, so that the above embodiment is further improved.
As shown in fig. 1, 2 and 8, the top of the protection cover 1 is fixedly connected with a plurality of cylinders 4, each cylinder 4 comprises a first cylinder 401, the top of the first cylinder 401 is fixedly connected with a second cylinder 402, the bottom of the first cylinder 401 is fixedly connected with a heat collecting plate 414, a heat insulating plate 403 is arranged inside the first cylinder 401, a certain gap is reserved between the heat insulating plate and the inner wall of the first cylinder 401, the top of the first cylinder 401 is fixedly connected with a sleeve 404, a sliding rod 405 is slidably connected in the sleeve 404, the bottom end of the sliding rod 405 is fixedly connected with the heat insulating plate 403, the heat insulating plate 403 is made of a heat insulating material, the top of the first cylinder 401 is fixedly connected with a supporting plate 406, the supporting plate 406 is rotationally connected with a belt pulley 407, two sides of the belt pulley 407 are eccentrically provided with a first upright post 412 and a second upright post 413, a first connecting rod 408 is hinged in the sliding rod 405, the first connecting rod 408 is rotationally connected with the first upright post 412, a first piston 409 is fixedly connected with the first piston 409 in a sealing sliding manner in the second cylinder 402, one end of the first piston 410 is hinged with a second connecting rod 411, and the second upright 413 is rotationally connected with the second connecting rod 413.
As shown in fig. 2, 4 and 7, the bottom of each support 14 is fixedly connected with a first cooling support 15 and a second cooling support 16, the bottoms of the first cooling support 15 and the second cooling support 16 are fixedly connected with the inner bottom surface of the protective cover 1, the tops of the first cooling support 15 and the second cooling support 16 are respectively provided with a plurality of blowing holes 17, one end of the first cooling support 15 is fixedly connected with a first blower 18, one end of the second cooling support 16 is fixedly connected with a second blower 19, fan blades 20 are respectively arranged in the first blower 18 and the second blower 19, rotating shafts 201 are fixedly connected to the fan blades 20, the first blower 18 and the second blower 19 are distributed in a mirror image state, the first blower 18 and the second blower 19 are respectively fixedly connected with ventilating pipes 21, each ventilating pipe 21 is communicated with the outside through the protective cover 1, a filter screen 22 is respectively arranged in each ventilating pipe 21, and impurities in the air can be prevented from entering the protective cover 1 through the ventilating pipes 21.
As shown in fig. 1 and 3-5, a supporting frame 23 is fixedly connected to the top of the protection cover 1, an avoidance groove 24 is formed between the supporting frames 23 at the top of the protection cover 1, a first driving wheel 25 and a second driving wheel 26 are rotatably connected to the supporting frames 23, the first driving wheel 25 is fixedly connected with the second driving wheel 26, each belt pulley 407 is connected with the first driving wheel 25 through a first driving belt 27, as shown in fig. 3 and 7, a rotating shaft 201 of the first blower 18 and a rotating shaft 201 of the second blower 19 are fixedly connected through a connecting wheel 28, the connecting wheel 28 and the second driving wheel 26 are in transmission connection through a second driving belt 29, the second driving belt 29 penetrates through the avoidance groove 24, as shown in fig. 3, 5 and 6, a ventilation groove 30 is formed between the high-voltage coil assembly 10 and the low-voltage coil assembly 8, six taps 112 are formed on the outer side of each high-voltage coil assembly 10, each tap 112 is connected through a high-voltage connecting rod 113, as shown in fig. 2, 3 and 6, a plurality of high-voltage terminals 31 are respectively formed on the two sides of the upper fixed support 11, and high-voltage terminals 111 are fixedly connected with the high-voltage terminals 111. Vent holes 101 are formed in two sides of the protective cover 1, the vent holes 101 in two sides of the protective cover 1 correspond to each other, vent filter plates 102 are arranged in two sides of the top of the protective cover 1, and filter holes of each vent filter plate 102 correspond to each other.
As shown in fig. 1, 3-5, 7 and 8, when the transformer main body 2 works, heat generated by the transformer main body 2 rises in the protective cover 1 to reach the top of the protective cover 1, the top of the protective cover 1 is in a bow-shaped arrangement, the purpose of the arrangement is to collect rising hot gas, and the top of the protective cover 1 at the position corresponding to each cylinder 4 is provided with a bulge, so that the heat is helpful to collect the hot gas to the heat collecting plate 414, the heat collecting plate 414 is helpful to collect the heat rapidly and raise the temperature, the heated heat collecting plate 414 transfers the heat to the cavity of the first cylinder 401, the gas in the first cylinder 401 expands under the action of the heat collecting plate 414, the expanding gas pushes the first piston 409 and the first piston rod 410 to move upwards in the second cylinder 402, and the cylinder body 4 is mostly outside the protective cover 1, and the heat insulating plate 403 is arranged in the first cylinder 401, and the heat insulating plate 403 isolates the hot expanding gas in the first cylinder 401 from the cold air, and drives the second connecting rod 411 to move at the same time, so that the second connecting rod 411 moves under the action of the second connecting rod 413 and the first connecting rod 403, the first connecting rod 405 rotates under the action of the second connecting rod 403 and the first connecting rod 405, the sliding rod 405 rotates under the action of the sliding rod 408, and the sliding rod 405 is connected with the first connecting rod 405 under the action of the sliding rod 405, and the sliding rod 405 under the action of the first connecting rod 405.
In summary, the heat collection plate 414 collects heat to expand the air in the first cylinder 401, the expanding air pushes the first piston 409 to move upwards, the first piston rod 410 and the second connecting rod 411 move upwards, the second upright 413 pushes the belt pulley 407 to rotate, the first upright 412 rotates with the belt pulley 407 through the inertia force generated when the belt pulley 407 rotates, the first connecting rod 408 swings, the slide rod 405 moves downwards, the heat insulation plate 403 moves close to the heat collection plate 414, at the same time, the first piston 409 slides in the second cylinder 402 to an intermediate position, at the same time, the part of the first cylinder 401, which is in contact with the external air, is cooled, the pressure of the cooling air at the top is reduced, the external pressure forces the first piston 409 to move downwards, and reaches the bottom of the second cylinder 402, the rotation of the belt pulley 407 affects the heat insulation plate 403, the heat insulation plate 403 rises again under the action of the first connecting rod 408, the first piston 409 returns to the intermediate position again, and is reciprocated in this cycle, the rotation of the plurality of belt pulleys 407 drives the first driving wheel 25 to rotate the second driving wheel 26 through the first driving belt 27, the second driving wheel 26 drives the second driving wheel 29 to rotate the second driving wheel 29, and simultaneously drives the second driving wheel 29 to rotate the second driving wheel 28 to rotate the second driving wheel 21 and the fan blade 201 to rotate together with the second fan blade 201 and the second fan blade 201 to rotate in the second fan blade 20 through the second fan support frame 20 and the fan support frame 20, and the fan blade 20 continuously rotates in the second fan support frame 20, and the fan blade 20 continuously through the cooling air duct 20, and the cooling air duct 20 continuously through the cooling air duct 20, and the cooling duct 20.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a three-phase isolation high impedance transformer of built-in reactor, includes the protection casing, be provided with transformer main part and reactance subassembly in the protection casing, its characterized in that: the top fixedly connected with a plurality of cylinders of protection casing, every the cylinder body is including first cylinder body, the top fixedly connected with second cylinder body of first cylinder body, the bottom fixedly connected with heat collecting plate of first cylinder body, the inside heat insulating board that is provided with of first cylinder body, the top fixedly connected with sleeve of first cylinder body, sliding connection has the slide bar in the sleeve, the bottom and the heat insulating board fixed connection of slide bar, the top fixedly connected with backup pad of first cylinder body, backup pad swivelling joint has the band pulley, the both sides eccentric first stand and the second stand that are provided with of band pulley, articulated in the slide bar have first connecting rod, first connecting rod and first stand swivelling joint, sealed sliding connection has first piston in the second cylinder body, first piston fixedly connected with first piston rod, the one end of first piston rod articulates there is the second connecting rod, second connecting rod and second stand swivelling joint.
2. A three-phase isolated high-impedance transformer with built-in reactor according to claim 1, wherein: the transformer main part is provided with the iron core, the cover is equipped with first insulating cylinder in the iron core outside, the cover is equipped with evenly distributed's a plurality of locking rings on the first insulating cylinder, the draw-in groove has been seted up at locking ring opening part both ends, is located two be provided with the third cylinder body between the draw-in groove, the cavity has been seted up respectively at the both ends of third cylinder body, every equal sealing sliding connection has the second piston in the cavity, every equal fixedly connected with second piston rod on the second piston, second piston rod and third cylinder body sliding sealing connection, the second piston rod is located the outside fixedly connected with fixed block of third cylinder body, articulated in the fixed block have the movable block, the other one end of movable block articulates there is the fixture block, every equal sliding connection of fixture block is in the draw-in groove.
3. A three-phase isolated high-impedance transformer with built-in reactor according to claim 2, wherein: the locking ring outside cover is equipped with low-voltage coil group, low-voltage coil group outside cover is equipped with the second insulating cylinder, second insulating cylinder outside cover is equipped with high-voltage coil group, iron core top both sides fixedly connected with goes up the fixed bolster, the bottom both sides fixedly connected with lower fixed bolster of iron core, go up the fixed bolster and all be provided with a plurality of compression assemblies in the outside of lower fixed bolster, compression assemblies includes the cushion, the last plane fixedly connected with gasbag support of cushion, the gasbag support is provided with dodges the hole, dodge downthehole spring that is provided with, plane fixedly connected with clamp plate on the gasbag support, the both ends of spring contact with cushion and clamp plate respectively, the bottom fixedly connected with a plurality of supports of transformer main part, every support and lower fixed bolster fixed connection, reactance assembly and support fixed connection, reactance assembly includes first reactor and second reactor and third reactor.
4. A three-phase isolated high-impedance transformer with built-in reactor according to claim 3, wherein: every the bottom fixedly connected with first cooling support and second cooling support of support, the bottom of first cooling support and second cooling support all with the interior bottom surface fixed connection of protection casing, the top of first cooling support and second cooling support all is provided with a plurality of blowholes, the one end fixedly connected with first hair-dryer of first cooling support, the one end fixedly connected with second hair-dryer of second cooling support, all be provided with the flabellum in first hair-dryer and the second hair-dryer, fixedly connected with pivot on the flabellum, first hair-dryer is mirror image state distribution with the second hair-dryer, first hair-dryer all fixedly connected with ventilation pipe respectively with second hair-dryer, every the ventilation pipe all runs through protection casing and outside intercommunication, every all be provided with the filter screen in the ventilation pipe.
5. A three-phase isolated high-impedance transformer with built-in reactor according to claim 1, wherein: the top fixedly connected with support frame of protection casing, the top of protection casing is located between the support frame and has been seted up dodges the groove, the support frame swivelling joint has first drive wheel and second drive wheel, first drive wheel and second drive wheel fixed connection, every the band pulley is connected through first drive belt with first drive wheel.
6. A three-phase isolated high-impedance transformer with built-in reactor according to claim 1, wherein: the rotary shafts of the first blower and the second blower are fixedly connected through the connecting wheel, the connecting wheel is in transmission connection with the second driving wheel through the second driving belt, and the second driving belt penetrates through the avoidance groove.
7. A three-phase isolated high-impedance transformer with built-in reactor according to claim 1, wherein: the high-voltage coil sets and the low-voltage coil sets are respectively provided with a ventilation groove, the ventilation holes correspond to the ventilation grooves, the low-voltage coil sets are fixedly connected with copper bars, six taps are arranged on the outer sides of each high-voltage coil set, and every two taps are connected through a high-voltage connecting rod.
8. A three-phase isolated high-impedance transformer with built-in reactor according to claim 1, wherein: the high-voltage coil assembly is characterized in that a plurality of insulators are respectively arranged on two sides of the upper fixing support, the high-voltage coil assembly is fixedly connected with a high-voltage terminal, and the high-voltage terminal is fixedly connected with the insulators.
9. A three-phase isolated high-impedance transformer with built-in reactor according to claim 1, wherein: the protective cover is characterized in that protective doors are respectively arranged on two sides of the protective cover, and a low-voltage wire passing hole and a high-voltage wire passing hole are formed in the top of the protective cover.
10. A three-phase isolated high-impedance transformer with built-in reactor according to claim 1, wherein: the air vent is set on two sides of the protective cover, the air vent on two sides of the protective cover is corresponding, the air vent filter plates are set on two sides of the top of the protective cover, and the filter holes of each air vent filter plate are corresponding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311778039.1A CN117524650A (en) | 2023-12-22 | 2023-12-22 | Three-phase isolation high-impedance transformer with built-in reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311778039.1A CN117524650A (en) | 2023-12-22 | 2023-12-22 | Three-phase isolation high-impedance transformer with built-in reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117747273A (en) * | 2024-02-08 | 2024-03-22 | 山西壹泰科电工设备有限公司 | Reactor coil structure |
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2023
- 2023-12-22 CN CN202311778039.1A patent/CN117524650A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117747273A (en) * | 2024-02-08 | 2024-03-22 | 山西壹泰科电工设备有限公司 | Reactor coil structure |
| CN117747273B (en) * | 2024-02-08 | 2024-05-14 | 山西壹泰科电工设备有限公司 | Reactor coil structure |
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