阅读说明：本技术 一种油浸式防爆变压器 (Oil-immersed explosion-proof transformer ) 是由 武林 王彦 李亚洲 于 2021-10-08 设计创作，主要内容包括：本发明公开了一种油浸式防爆变压器,包括变压器组件,所述变压器组件的内部活动安装有铁芯组件,所述变压器组件的顶端活动安装有顶盖,所述顶盖的顶端一侧固定安装有三个固定台,所述固定台的顶端均设有高压端子,所述顶盖的顶端另一侧设有三个低压端子。本发明通过密封圆环使油箱内部的油无法进入铁芯的内部,防止装置在使用的过程中,铁芯与上铁轭之间装配时的缝隙使油流入其中,导致铁芯在使用时发生意外。(The invention discloses an oil-immersed explosion-proof transformer which comprises a transformer assembly, wherein an iron core assembly is movably arranged in the transformer assembly, a top cover is movably arranged at the top end of the transformer assembly, three fixed tables are fixedly arranged on one side of the top end of the top cover, high-voltage terminals are arranged at the top ends of the fixed tables, and three low-voltage terminals are arranged on the other side of the top end of the top cover. According to the invention, the oil in the oil tank can not enter the iron core through the sealing ring, so that the phenomenon that the oil flows into the gap between the iron core and the upper iron yoke when the device is assembled in the using process, and the iron core is in an accident in the using process is prevented.)

1. The utility model provides an explosion-proof transformer of oil-immersed, includes transformer subassembly (1), its characterized in that: the transformer assembly is characterized in that an iron core assembly (5) is movably mounted inside the transformer assembly (1), a top cover (2) is movably mounted at the top end of the transformer assembly (1), three fixed tables (7) are fixedly mounted on one side of the top end of the top cover (2), high-voltage terminals (8) are arranged at the top ends of the fixed tables (7), three low-voltage terminals (9) are arranged on the other side of the top end of the top cover (2), a pressure release valve (6) is movably mounted at the top end of the top cover (2), an oil conservator assembly (3) is fixedly mounted at the top end of the top cover (2), two bases (4) are fixedly mounted at the bottom end of the transformer assembly (1), and a grounding wire (10) is fixedly mounted at the bottom end of the transformer assembly (1);

the transformer assembly (1) comprises an oil tank (101), a heat dissipation plate (102), vent holes (103), a pressure relief pipe (104), a ventilation grid (105) and heat dissipation fans (106), wherein two ventilation grids (105) are fixedly mounted on the rear side surface of the oil tank (101), two heat dissipation fans (106) are movably mounted inside the ventilation grids (105), a plurality of heat dissipation plates (102) are fixedly mounted on the rest three side surfaces of the oil tank (101), the surfaces of the heat dissipation plates (102) are provided with the vent holes (103), and the pressure relief pipe (104) is fixedly mounted at the top end of the oil tank (101);

the utility model provides a fuel tap, including conservator subassembly (3), defeated oil pipe (302), oil delivery pump (303), bracing piece (304) and oil level gaugember (305), the bottom fixed mounting of conservator (301) has defeated oil pipe (302), the fixed surface of defeated oil pipe (302) installs oil delivery pump (303), the equal fixed mounting in bottom both sides of conservator (301) has bracing piece (304), the rear side surface fixed mounting of conservator (301) has oil level gaugember (305), the positive side surface of conservator (301) is equipped with the oil filler point.

2. The oil-immersed explosion-proof transformer of claim 1, wherein: the iron core assembly (5) comprises a lower iron yoke (501), an iron core (502), an upper iron yoke (503), a lead wire (504), an insulating plate (505), a fixing rod (506), a winding (507), a sealing ring (508), a pressing block (509), a pressing block outer groove (510), a pressing block inner groove (511), an upper iron yoke inner groove (512), a spring plunger (513), a first compression spring (514), a second compression spring (515), a limiting buckle (516) and an upper iron yoke bottom groove (517);

the top fixed mounting of lower yoke (501) has three iron core (502), the top joint of iron core (502) is fixed with yoke (503), the bottom movable mounting of going up yoke (503) has two insulation boards (505), the top of going up yoke (503) is equipped with six and connects lead wire (504), the bottom fixed mounting of going up yoke (503) has a plurality of dead levers (506), the outside surface of iron core (502) all is equipped with winding (507), the equal movable mounting in surface of dead lever (506) has sealed ring (508), the bottom of going up yoke (503) is equipped with three yoke kerve (517), the inside of going up yoke kerve (517) is all gone into to the top of iron core (502), the inside of going up yoke kerve (517) all is equipped with four briquetting outer grooves (510), the inside of briquetting outer groove (510) all is equipped with briquetting inner groove (511), the inside of briquetting inside groove (511) all is equipped with indisputable yoke inside groove (512), the equal movable mounting in inside of briquetting water jacket (510) has briquetting (509), the equal fixed mounting in inboard surface of briquetting (509) has spring plunger (513), spring plunger (513) all block in the inside of briquetting inside groove (511), the equal fixed mounting in inboard surface of first compression spring (514) has spacing knot (516), the inside of indisputable yoke inside groove (512) is gone into all to spacing knot (516), the inside of briquetting inside groove (511) all is equipped with first compression spring (514), the inside of going up indisputable yoke inside groove (512) all is equipped with a plurality of second compression spring (515).

3. The oil-immersed explosion-proof transformer of claim 2, wherein: the spring plungers (513) are clamped in the first compression spring (514), and the inner side surfaces of the limit buttons (516) are attached to the surface of the second compression spring (515).

4. The oil-immersed explosion-proof transformer of claim 2, wherein: the surfaces of the pressing blocks (509) are attached to the surface of the sealing ring (508).

5. The oil-immersed explosion-proof transformer of claim 1, wherein: the oil delivery pipe (302) is clamped into the oil tank (101), and the pressure relief pipe (104) is clamped into the pressure relief valve (6).

6. The oil-immersed explosion-proof transformer of claim 2, wherein: the lead wires (504) are electrically connected with the high-voltage terminal (8) and the low-voltage terminal (9), and the top ends of the sealing circular rings (508) are clamped into the bottom groove (517) of the upper iron yoke.

7. The oil-immersed explosion-proof transformer of claim 2, wherein: the bottom end of the upper iron yoke (503) is connected with the top end surface of the top cover (2) in a welding mode.

8. The oil-immersed explosion-proof transformer of claim 2, wherein: the surface of the sealing ring (508) is provided with a through hole, and the fixing rods (506) are clamped into the through holes.

Technical Field

The invention relates to the technical field of oil-immersed transformers, in particular to an oil-immersed explosion-proof transformer.

Background

With the rapid development of social economy, the use of a transformer becomes one of the very common machines in daily life of people, a distribution transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings, and a low-voltage winding of an oil-immersed transformer generally adopts a cylindrical structure with copper foil around a shaft except for a small-capacity copper conductor; the high-voltage winding adopts a multi-layer cylindrical structure, so that the ampere-turn distribution of the winding is balanced, the magnetic flux leakage is small, the mechanical strength is high, and the short-circuit resistance is strong.

However, when the conventional oil-immersed transformer is used, oil often enters internal components to cause failure and failure of the components, so that the device is prone to explosion danger, and the heat dissipation effect of the device is poor.

Disclosure of Invention

The invention aims to provide an oil-immersed explosion-proof transformer, which solves the problems that the oil-immersed transformer proposed in the background art is often used, because oil is immersed into internal parts, parts are failed and invalid, further, the device is easy to explode and is not good in heat dissipation effect, and the like.

In order to achieve the purpose, the invention provides the following technical scheme: an oil immersed type explosion-proof transformer comprises a transformer assembly, wherein an iron core assembly is movably mounted inside the transformer assembly, a top cover is movably mounted at the top end of the transformer assembly, three fixed tables are fixedly mounted on one side of the top end of the top cover, high-voltage terminals are arranged at the top ends of the fixed tables, three low-voltage terminals are arranged on the other side of the top end of the top cover, a pressure release valve is movably mounted at the top end of the top cover, an oil conservator assembly is fixedly mounted at the top end of the top cover, two bases are fixedly mounted at the bottom end of the transformer assembly, and a grounding wire is fixedly mounted at the bottom end of the transformer assembly;

the transformer assembly comprises an oil tank, a heat dissipation plate, ventilation holes, a pressure relief pipe, a ventilation grid and heat dissipation fans, wherein two ventilation grids are fixedly installed on the rear side surface of the oil tank;

the conservator subassembly includes conservator, defeated oil pipe, fuel delivery pump, bracing piece, oil level gaugember, the bottom fixed mounting of conservator has defeated oil pipe, defeated oil pipe's fixed surface installs the fuel delivery pump, the equal fixed mounting in bottom both sides of conservator has the bracing piece, the rear side fixed mounting of conservator has the oil level gaugember, the positive side surface of conservator is equipped with the oil filler point.

Preferably, the iron core assembly comprises a lower iron yoke, an iron core, an upper iron yoke, lead wires, insulating plates, fixing rods, windings, a sealing ring, a pressing block, an outer pressing block groove, an inner upper iron yoke groove, a spring plunger, a first compression spring, a second compression spring, a limiting buckle and an upper iron yoke bottom groove, wherein three iron cores are fixedly arranged at the top end of the lower iron yoke, the upper iron yoke is fixedly connected with the top end of the iron core in a clamping manner, two insulating plates are movably arranged at the bottom end of the upper iron yoke, six lead wires are arranged at the top end of the upper iron yoke, a plurality of fixing rods are fixedly arranged at the bottom end of the upper iron yoke, the windings are arranged on the outer side surfaces of the iron cores, the sealing ring is movably arranged on the surfaces of the fixing rods, three upper iron yoke bottom grooves are arranged at the bottom end of the upper iron yoke, the top ends of the iron cores are clamped into the inner iron yoke bottom groove, and four outer pressing block grooves are arranged in the upper iron yoke bottom groove, the inside of briquetting water jacket all is equipped with the briquetting inside groove, the inside of briquetting inside groove all is equipped with indisputable yoke inside groove, the equal movable mounting in inside of briquetting water jacket has the briquetting, the equal fixed mounting in inboard surface of briquetting has spring plunger, spring plunger all blocks the inside of briquetting inside groove, the equal fixed mounting in inboard surface of first compression spring has spacing knot, the inside of indisputable yoke inside groove is gone into to the equal card of spacing knot, the inside of briquetting inside groove all is equipped with first compression spring, the inside of going up indisputable yoke inside groove all is equipped with a plurality of second compression spring.

Preferably, the spring plunger is clamped in the first compression spring, and the inner side surface of the limit buckle is attached to the surface of the second compression spring.

Preferably, the surface of the pressing block is attached to the surface of the sealing ring.

Preferably, the oil delivery pipe is clamped into the oil tank, and the pressure relief pipe is clamped into the pressure relief valve.

Preferably, the lead wires are electrically connected with the high-voltage terminal and the low-voltage terminal, and the top ends of the sealing rings are clamped in the bottom groove of the upper iron yoke.

Preferably, the bottom end of the upper iron yoke is welded and connected with the top end surface of the top cover.

Preferably, the surface of the sealing ring is provided with a through hole, and the fixing rods are clamped into the through holes.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the oil tank, the oil in the oil tank cannot enter the iron core through the sealing ring, so that the phenomenon that the oil flows into a gap between the iron core and the upper iron yoke when the oil tank is assembled in the using process of the oil tank is avoided, and accidents happen to the iron core when the oil tank is used;

through the matching of the pressing block and the first compression spring, the pressing block can be tightly attached to the surface of the iron core on the surface of the sealing ring through the extrusion of the first compression spring and the second compression spring, so that the possibility of oil leakage is further reduced, and accidents are prevented;

make the device when dismantling the maintenance through spacing knot, can make the briquetting can not pop out the device because of first compression spring's extrusion, lead to device spare part impaired and unable use, make things convenient for the device to carry out the dismouting.

2. According to the invention, by installing the plurality of heat dissipation plates and the plurality of air vents on the outer surface of the oil tank, the flowing speed of air can be increased through the air vents, and the heat dissipation efficiency of the device is further increased; when the device is in use, the rear side surface is usually close to a wall surface or a column body, so that the ventilation area is small, the ventilation grille and the cooling fan are matched, the air flow of the rear side surface of the device is improved, and the internal parts are prevented from being burnt due to temperature concentration.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a cross-sectional elevation view of the invention in its entirety;

FIG. 3 is a rear elevational view of the invention as a whole;

FIG. 4 is a cross-sectional side view of the sealing ring of the present invention;

FIG. 5 is a cross-sectional top view of the sealing ring of the present invention;

FIG. 6 is a cross-sectional top view of a compact of the present invention.

In the figure: 1. a transformer assembly; 101. an oil tank; 102. a heat dissipation plate; 103. a vent hole; 104. a pressure relief pipe; 105. a ventilation grille; 106. a heat radiation fan; 2. a top cover; 3. a conservator assembly; 301. an oil conservator; 302. an oil delivery pipe; 303. an oil transfer pump; 304. a support bar; 305. an oil level gauge; 4. a base; 5. an iron core assembly; 501. a lower iron yoke; 502. an iron core; 503. an upper iron yoke; 504. connecting a lead; 505. an insulating plate; 506. fixing the rod; 507. a winding; 508. sealing the circular ring; 509. briquetting; 510. a briquetting outer groove; 511. pressing an inner groove; 512. an inner groove of the upper iron yoke; 513. a spring plunger; 514. a first compression spring; 515. a second compression spring; 516. a limit buckle; 517. an upper iron yoke bottom groove; 6. a pressure relief valve; 7. a fixed table; 8. a high voltage terminal; 9. a low voltage terminal; 10. and a ground line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 6, an embodiment of the present invention includes: the utility model provides an oil-immersed explosion-proof transformer, including transformer subassembly 1, transformer subassembly 1's inside movable mounting has iron core subassembly 5, transformer subassembly 1's top movable mounting has top cap 2, top one side fixed mounting of top cap 2 has three fixed station 7, the top of fixed station 7 all is equipped with high voltage terminal 8, top cap 2's top opposite side is equipped with three low voltage terminal 9, top movable mounting of top cap 2 has relief valve 6, top fixed mounting of top cap 2 has conservator subassembly 3, transformer subassembly 1's bottom fixed mounting has two bases 4, transformer subassembly 1's bottom fixed mounting has earth connection 10.

Further, the transformer assembly 1 comprises an oil tank 101, a heat dissipation plate 102, ventilation holes 103, a pressure relief pipe 104, a ventilation grille 105 and a heat dissipation fan 106, wherein two ventilation grills 105 are fixedly installed on the rear side surface of the oil tank 101, two heat dissipation fans 106 are movably installed inside the ventilation grills 105, a plurality of heat dissipation plates 102 are fixedly installed on the rest three side surfaces of the oil tank 101, a plurality of ventilation holes 103 are arranged on the surface of each heat dissipation plate 102, the pressure relief pipe 104 is fixedly installed at the top end of the oil tank 101, the air flow of the rear side surface of the device is improved through the matching of the ventilation grills 105 and the heat dissipation fans 106, and internal parts are prevented from being burnt out due to temperature concentration.

Further, the conservator component 3 comprises an conservator 301, an oil delivery pipe 302, an oil delivery pump 303, a support rod 304 and an oil level gauge 305, the oil delivery pipe 302 is fixedly installed at the bottom end of the conservator 301, the oil delivery pump 303 is fixedly installed on the surface of the oil delivery pipe 302, the support rod 304 is fixedly installed on two sides of the bottom end of the conservator 301, the oil level gauge 305 is fixedly installed on the rear side surface of the conservator 301, an oil filling hole is formed in the front side surface of the conservator 301, the inside of the oil tank 101 can be kept in a full oil state all the time through the conservator 301, and the stability of the device is improved.

Further, the iron core assembly 5 comprises a lower iron yoke 501, an iron core 502, an upper iron yoke 503, lead wires 504, insulating plates 505, fixing rods 506, windings 507, a sealing ring 508, a pressing block 509, a pressing block outer groove 510, a pressing block inner groove 511, an upper iron yoke inner groove 512, a spring plunger 513, a first compression spring 514, a second compression spring 515, a limit buckle 516 and an upper iron yoke bottom groove 517, wherein three iron cores 502 are fixedly arranged at the top end of the lower iron yoke 501, the top end of the iron core 502 is fixedly clamped with the upper iron yoke 503, two insulating plates 505 are movably arranged at the bottom end of the upper iron yoke 503, six lead wires 504 are arranged at the top end of the upper iron yoke 503, a plurality of fixing rods 506 are fixedly arranged at the bottom end of the upper iron yoke 503, the windings 507 are arranged on the outer side surface of the iron core 502, the sealing ring 508 is movably arranged on the surface of the fixing rods 506, three upper iron yoke bottom grooves 517 are arranged at the bottom end of the upper iron yoke 503, the top end of the iron core 502 is clamped into the upper yoke 517, four press block outer grooves 510 are respectively arranged inside the upper iron yoke bottom grooves 517, press block inner grooves 511 are respectively arranged inside the press block outer grooves 510, upper iron yoke inner grooves 512 are respectively arranged inside the press block inner grooves 511, press blocks 509 are respectively movably arranged inside the press block outer grooves 510, spring plungers 513 are respectively fixedly arranged on the inner side surfaces of the press blocks 509, the spring plungers 513 are respectively clamped inside the press block inner grooves 511, limit buckles 516 are respectively fixedly arranged on the inner side surfaces of the first compression springs 514, the limit buckles 516 are respectively clamped inside the upper iron yoke inner grooves 512, first compression springs 514 are respectively arranged inside the press block inner grooves 511, a plurality of second compression springs 515 are respectively arranged inside the upper iron yoke inner grooves 512, and the press blocks 509 are matched with the first compression springs 514 so that the press blocks 509 can enable the surface of the sealing ring 508 to be tightly attached to the surface of the iron core 502 through the extrusion of the first compression springs 514 and the second compression springs 515 on the surface of the sealing ring 508, further reducing the likelihood of oil leakage.

Further, the spring plungers 513 are all clipped into the interior of the first compression spring 514, and the inside surfaces of the position-limiting buttons 516 are all attached to the surface of the second compression spring 515.

Further, the surfaces of the pressing blocks 509 are all attached to the surface of the sealing ring 508.

Further, the oil delivery pipe 302 is clamped in the oil tank 101, the pressure relief pipe 104 is clamped in the pressure relief valve 6, the pressure in the oil tank 101 is controlled through the pressure relief valve 6, and accidents caused by overhigh pressure are prevented.

Further, the lead wires 504 are electrically connected to the high-voltage terminal 8 and the low-voltage terminal 9, and the top ends of the seal rings 508 are fitted into the bottom grooves 517 of the upper iron yokes.

Further, the bottom end of the upper yoke 503 is welded to the top end surface of the top cover 2.

Further, the surface of the sealing ring 508 is provided with a through hole, the fixing rod 506 is clamped into the through hole, and the sealing ring 508 can be simply dismounted to be maintained when the device is dismounted through the through hole.

When the oil tank is used, oil in the oil tank 101 cannot enter the iron core 502 through the sealing ring 508, so that oil is prevented from flowing into a gap between the iron core 502 and the upper iron yoke 503 when the oil tank is assembled in the using process of the oil tank, and accidents happen to the iron core 502 when the oil tank is used; through the cooperation of the pressing block 509 and the first compression spring 514, the pressing block 509 can enable the sealing ring 508 to be tightly attached to the surface of the iron core 502 on the surface of the sealing ring 508 through the extrusion of the first compression spring 514 and the second compression spring 515, the possibility of oil leakage is further reduced, and accidents are prevented;

when the device is disassembled and maintained through the limit buckle 516, the pressing block 509 cannot be ejected out of the device due to extrusion of the first compression spring 514, so that parts of the device are damaged and cannot be used, and the device is convenient to disassemble and assemble. When the device is used, the rear side surface is usually close to a wall surface or a column, so that the ventilation area is small, and the ventilation grille 105 and the heat dissipation fan 106 are matched, so that the air flow on the rear side surface of the device is improved, and the internal parts are prevented from being burnt due to temperature concentration.