CN219226021U - Distribution transformer with good contact - Google Patents

Abstract

The utility model discloses a distribution transformer with good contact, wherein a plurality of oil collecting tanks are slidably embedded in clamping grooves of the oil collecting tanks, a heat dissipation motor is arranged at the power input end through a fan barrel, a fan is arranged at the output end of the heat dissipation motor, a pump is arranged at the top end of a side-end radiating fin, the output end of the pump is connected with the top end of a transformer tank through an oil collecting pipe, the input end of the pump is connected with one end of two oil collecting tanks through the oil collecting pipe, and the inside of the transformer tank is connected with an inner structure.

Description

Distribution transformer with good contact

Technical Field

The utility model relates to the technical field of distribution transformers, in particular to a distribution transformer with good contact.

Background

Distribution transformers, abbreviated as "distribution transformers", are static electric appliances in a distribution system for converting ac voltage and current according to the law of electromagnetic induction to transmit ac power, and power transformers with voltage levels below 35 KV (mostly 10KV and below) are called "distribution transformers", abbreviated as "distribution transformers", and places where "distribution transformers" are installed, namely power substations.

However, most of the existing distribution transformers with good contact have larger improvement in terms of heat dissipation, most of the existing transformers are not easy to improve in terms of heat dissipation due to the limitation of the self structure, and a large amount of manpower and material resources are required to be input in terms of installation and subsequent maintenance due to the self-inherent structure, so that the machine consumption cost is high, and the installation of the power output insulating sleeve can be improved.

Disclosure of Invention

The utility model provides a distribution transformer with good contact, which can effectively solve the problems that most of the prior art is greatly improved in heat dissipation, most of the prior transformers are difficult to improve in heat dissipation due to the limitation of the self structure, and a large amount of manpower and material resources are required to be input in installation and subsequent maintenance due to the self-inherent structure, so that the machine consumption cost is high, and the installation of an electric power output insulating sleeve can be improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a distribution transformer with good contact comprises a transformer box, wherein the top end of the transformer box is connected with an external structure;

the external structure comprises a standby oil tank;

the power input end and the corresponding end of the transformer tank are respectively provided with a plurality of side-end cooling fins, the power output end and the other end of the transformer tank are respectively provided with a plurality of main cooling fins, the middle parts of the main cooling fins are respectively provided with a plurality of heat dissipation holes, one end of each main cooling fin is respectively provided with an oil collecting tank clamping groove, the inside of each oil collecting tank clamping groove is slidably embedded with an oil collecting tank, the electric power input end is provided with a heat dissipation motor through a fan barrel, the output end of the heat dissipation motor is provided with a fan, one end of the heat dissipation motor is provided with a pump at the top end of the side-end radiating fin, the output end of the pump is connected with the top end of the transformer box through an oil collecting pipe, and the input end of the pump is connected with one ends of two oil collecting tanks through oil collecting pipes.

Preferably, the spare oil tank is installed through the pedestal mounting in transformer tank top, the transformer seat is installed to transformer tank bottom, every side fin and main fin are all fixed with the transformer tank through the fin seat, the hole has all been seted up to the junction of transformer tank and side fin and main fin, and the junction has all been embedded with the rubber strip, a plurality of oil holes that sink have been seted up to the oil tank inboard that sink.

Preferably, coil fixing plates are clamped in the middle of the main coil and the two secondary coils, coil footrests are installed at the top ends of the main coil and the two secondary coils, and two ends of the coil footrests are fixed with the inside of the transformer box through bolts.

Preferably, an internal structure is connected inside the transformer box, and the internal structure comprises an iron core clamping groove;

the transformer tank is characterized in that the bottom section inside the transformer tank is connected with a clamping groove fixing block through a bolt, an iron core clamping groove is arranged at the top end of the clamping groove fixing block, an iron core is embedded inside the iron core clamping groove, and a main coil and two secondary coils are wound on the surface of the iron core.

Preferably, the electric power input shaft is installed on the transformer tank top, a plurality of full rolling number output shafts are installed on the transformer tank top, a plurality of half rolling output shafts are installed on the transformer tank top, the fin fixed plate is all installed to side end fin and main fin top and bottom, and the draw-in groove stopper is installed in the main fin outside of air-out end, two the heat dissipation motor is all connected with the fan section of thick bamboo through the heat dissipation electric power frame, electric power input shaft, full rolling number output shafts and half rolling output shafts are all through insulating sleeve bolt and insulating sleeve bolt hole one-to-one even connection, the insulating sleeve bolt is electrically conductive material.

Preferably, the primary coil and the two secondary coils are connected with a high-voltage-transformation wire through full rolling, connected with a low-voltage-transformation wire through half rolling, and the high-voltage-transformation wire and the low-voltage-transformation wire cannot be connected at the same time, insulating oil is placed in the transformer tank, and the transformer tank, the side end radiating fins and the main radiating fins are all communicated.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure, safe and convenient use,

1. through setting up side fin, main fin, louvre and heat dissipation motor, the setting through side fin and main fin makes the heat dissipation capacity increase of whole transformer, and the heat dissipation capacity reinforcing, and the setting of louvre and heat dissipation motor makes the heat dissipation capacity of main fin more superior, and the heat dissipation surface is wider for the device also can have better working capacity in the three-volt day.

2. Through setting up, pump, oil collecting tank and oil collecting pipe, collect the inside insulating oil of main fin together through oil collecting tank for subsequent work can go on fast smoothly, and pump and oil collecting pipe's setting, then can circulate the insulating oil that gathers and flow, make the inside oil circulation flow of transformer tank, heat dissipation that can be more even.

3. Through converging oil tank draw-in groove, fin seat and draw-in groove stopper, through converging oil tank draw-in groove set up make the converging oil tank in installation and follow-up maintenance and dismantlement installation can be more smooth quick going on, and the setting of draw-in groove stopper then can make the converging oil tank establish in the settlement position that can be accurate card, and the setting of fin seat then can make things convenient for follow-up maintenance more, has avoided the large-scale device of maintenance in-process to change.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a schematic diagram of a backup tank structure of the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional structure of a tank truck of the present utility model;

FIG. 3 is a schematic diagram of the structure of the oil collecting tank of the present utility model;

FIG. 4 is a schematic diagram of a heat sink base according to the present utility model;

FIG. 5 is a schematic cross-sectional view of a fan according to the present utility model;

FIG. 6 is a schematic view of a fan cartridge of the present utility model;

fig. 7 is a schematic diagram of the structure of the insulating sleeve bolt hole of the present utility model;

fig. 8 is a schematic view of the core structure of the present utility model;

FIG. 9 is a schematic diagram of a coil top base structure according to the present utility model;

FIG. 10 is a schematic view of a coil fixing plate structure of the present utility model;

reference numerals in the drawings: 1. a transformer tank;

2. an outer structure; 201. a standby oil tank; 202. a power input shaft; 203. full rolling number output shaft; 204. side end radiating fins; 205. a primary heat sink; 206. a heat radiation hole; 207. oil collecting tank; 208. oil collecting holes; 209. a blower cylinder; 210. a heat dissipation motor; 211. a fan; 212. oil collecting pipe; 213. a pump; 214. a tank clamping groove for collecting oil; 215. a clamping groove limiter; 216. a heat sink fixing plate; 217. a heat sink base; 218. a heat dissipation electric machine frame; 219. semi-rolling an output shaft; 220. an insulating sleeve bolt; 221. an insulating sleeve bolt hole; 222. a transformer base;

3. an internal structure; 301. an iron core clamping groove; 302. a clamping groove fixing block; 303. an iron core; 304. a main coil; 305. a secondary coil; 306. a high voltage transformation wire; 307. a coil fixing plate; 308. a coil top base; 309. low voltage transformation wire.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples: as shown in fig. 1-10, the utility model provides a technical scheme of a distribution transformer with good contact, and the distribution transformer with good contact comprises a transformer box 1, wherein the top end of the transformer box 1 is connected with an external structure 2;

the external structure 2 comprises a backup tank 201;

in order to increase the heat radiation capacity of the whole device, a plurality of side end cooling fins 204 are arranged at the power input end and the corresponding end of the transformer tank 1, a plurality of main cooling fins 205 are arranged at the power output end and the other end of the transformer tank 1, heat radiation holes 206 are formed in the middle of the main cooling fins 205, oil collecting tank clamping grooves 214 are formed at one end of the main cooling fins 205, oil collecting tanks 207 are slidingly embedded in the oil collecting tank clamping grooves 214, a heat radiation motor 210 is arranged at the power input end through a fan cylinder 209, a fan 211 is arranged at the output end of the heat radiation motor 210, a pump 213 is arranged at the top end of the side end cooling fins 204, the output end of the pump 213 is connected with the top end of the transformer tank 1 through an oil collecting pipe 212, the input end of the pump 213 is connected with one ends of the two oil collecting tanks 207 through the oil collecting pipe 212, the power input shaft 202 is arranged at the top end of the transformer tank 1, a plurality of full-rolling output shafts 203 are arranged at the top end of the transformer tank 1, a plurality of half-rolling output shafts 219 are arranged at the top end of the transformer box 1, radiating fin fixing plates 216 are arranged at the top end and the bottom end of each of side radiating fins 204 and main radiating fins 205, clamping groove limiters 215 are arranged at the outer sides of the main radiating fins 205 at the air outlet end, two radiating motors 210 are connected with a fan barrel 209 through a heat dissipation electric frame 218, the electric power input shafts 202, the full rolling output shafts 203 and the half-rolling output shafts 219 are uniformly connected one by one through insulating sleeve bolts 220 and insulating sleeve bolt holes 221, the insulating sleeve bolts 220 are conductive materials, a standby oil tank 201 is arranged at the top end of the transformer box 1 through a base, a transformer seat 222 is arranged at the bottom end of the transformer box 1, each of side radiating fins 204 and main radiating fins 205 are connected and fixed with the transformer box 1 through radiating fin seats 217, holes are formed at the connecting positions of the transformer box 1 and the side radiating fins 204 and the main radiating fins 205, rubber strips are embedded in the joints, a plurality of oil collecting holes 208 are formed in the inner side of the oil collecting tank 207, and the inside of the transformer tank 1 is connected with an inner structure 3;

the inner structure 3 includes a core clamping groove 301;

for convenience of subsequent maintenance and repair, the bottom section inside the transformer tank 1 is connected with the clamping groove fixing block 302 through bolts, the iron core clamping groove 301 is installed at the top end of the clamping groove fixing block 302, the iron core 303 is embedded inside the iron core clamping groove 301, the surface of the iron core 303 is wound with the main coil 304 and the two secondary coils 305, the coil fixing plates 307 are clamped in the middle of the main coil 304 and the two secondary coils 305, the coil top seats 308 are installed at the top ends of the main coil 304 and the two secondary coils 305, the two ends of the coil top seats 308 are fixed with the inside of the transformer tank 1 through bolts, the main coil 304 and the two secondary coils 305 are connected with the high-voltage-transformation wire 306 through full rolling, the low-voltage-transformation wire 309 is connected through half rolling, the high-voltage-transformation wire 306 and the low-voltage-transformation wire 309 cannot be connected at the same time, insulating oil is placed inside the transformer tank 1, and the side end radiating fins 204 and the main radiating fins 205 are all communicated.

The working principle and the using flow of the utility model are as follows: when an operator needs to connect the iron core clamping groove 301 with the bottom of the inner side of the transformer tank 1 through the clamping groove fixing block 302, then clamp the iron core 303 with the finished winding inside the iron core clamping groove 301, clamp the coil fixing plate 307 from top to bottom outside the primary coil 304 and the secondary coil 305 after the clamping is finished, connect the input end of the high-voltage transformation wire 306 with the output end of the primary coil 304 after the clamping is finished, connect the output end of the high-voltage transformation wire 306 with the full-rolling input end of the secondary coil 305, finally connect the full-rolling output end of the secondary coil 305 with the full-rolling input end of the second secondary coil 305, connect the input end of the low-voltage transformation wire 309 with the output end of the primary coil 304 after the connection is finished, connect the output end of the low-voltage transformation wire 309 with the half-rolling input end of the secondary coil 305, and finally connect the half-rolling output end of the secondary coil 305 with the second secondary coil 305, and fix the whole internal structure 3 with the inner wall of the transformer tank 1 through the coil top seat 308 after the limiting connection is finished;

after the fixing is completed, the side end radiating fins 204 are installed at the corresponding end of the electric power input end machine of the transformer tank 1 through the radiating fin seats 217, the main radiating fins 205 are installed at the corresponding end of the electric power output end machine of the transformer tank 1 through the radiating fin seats 217, the advantages of the method are that the subsequent maintenance, replacement and maintenance of the radiating fins are facilitated, after all the radiating fins are installed, the radiating fin fixing plates 216 are installed at the bottom ends and the top ends of the side end radiating fins 204 and the main radiating fins 205, the radiating fins can be well fixed to prevent interference caused by high wind, the stability of the radiating fins is ensured, after the installation is completed, the oil collecting tank 207 is slidably embedded into the oil collecting tank clamping groove 214, the clamping groove limiter 215 can ensure that the oil collecting tank 207 can accurately reach the designated position, after the installation is completed, the fan cylinder 209 is arranged at the electric power input corresponding end of the main cooling fin 205, the cooling motor 210 is arranged in the fan cylinder 209 through the cooling electric frame 218, the fan 211 at the output end of the cooling motor 210 can continuously ventilate the inside of the cooling hole 206 after rotating so that the cooling capacity of the main cooling fin 205 is more excellent, finally insulating oil is injected into the transformer tank 1, the transformer tank 1 is covered after the injection is finished, the electric power input and output line is connected and arranged one by one through the insulating sleeve bolt 220 and the insulating sleeve bolt hole 221, the standby oil tank 201 is arranged at the top end of the transformer tank 1 through the base after the installation is finished, then the pump 213 is arranged at the top end of the side end cooling fin 204 at one end, the input end is connected with one end of the oil collecting tank 207 through the oil collecting pipe 212, the output end of the pump 213 is connected with the top end of the transformer tank 1, this enables the heated insulating oil to circulate inside the main fin 205 to be uniformly and rapidly radiated.

Finally, it should be noted that: the foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A distribution transformer with good contact, comprising a transformer tank (1), characterized in that: the top end of the transformer box (1) is connected with an external structure (2);

the external structure (2) comprises a backup tank (201);

the utility model discloses a transformer tank, including transformer tank (1), fan (211) are installed to the electric power input end of transformer tank (1) and corresponding end all install a plurality of side fin (204), a plurality of main fin (205) middle part has all been seted up louvre (206), a plurality of oil tank draw-in groove (214) are all seted up to main fin (205) one end, a plurality of oil tank draw-in groove (214) are inside to slide the embedding, heat dissipation motor (210) are installed through fan barrel (209) to the electric power input end, fan (211) are installed to heat dissipation motor (210) output, one end side fin (204) top is installed pump (213), the output of pump (213) is connected with transformer tank (1) top through oil pipe (212), the input of pump (213) is connected with two oil tank (207) one end through oil pipe (212).

2. The distribution transformer with good contact according to claim 1, wherein an electric power input shaft (202) is installed at the top end of the transformer box (1), a plurality of full-rolling output shafts (203) are installed at the top end of the transformer box (1), a plurality of half-rolling output shafts (219) are installed at the top end of the transformer box (1), heat dissipation plate fixing plates (216) are installed at the top ends and the bottom ends of the side heat dissipation plates (204) and the main heat dissipation plates (205), a clamping groove limiter (215) is installed at the outer side of the main heat dissipation plates (205) at the air outlet end, two heat dissipation motors (210) are connected with a fan barrel (209) through heat dissipation electric frames (218), the electric power input shaft (202), the full-rolling output shafts (203) and the half-rolling output shafts (219) are uniformly connected one by one through insulating sleeve bolts (220) and insulating sleeve bolt holes (221), and the insulating sleeve bolts (220) are made of conductive materials.

3. The distribution transformer with good contact according to claim 1, wherein a spare oil tank (201) is installed at the top end of the transformer tank (1) through a base, a transformer seat (222) is installed at the bottom end of the transformer tank (1), each side end radiating fin (204) and each main radiating fin (205) are connected and fixed with the transformer tank (1) through a radiating fin seat (217), holes are formed at the connection positions of the transformer tank (1) and the side end radiating fins (204) and the main radiating fins (205), rubber strips are embedded at the connection positions, and a plurality of oil collecting holes (208) are formed in the inner side of the oil collecting tank (207).

4. A well-contacted distribution transformer according to claim 1, characterized in that the transformer tank (1) is internally connected with an internal structure (3), the internal structure (3) comprising a core clamping slot (301);

the transformer box is characterized in that the inner bottom section of the transformer box (1) is connected with a clamping groove fixing block (302) through bolts, an iron core clamping groove (301) is arranged at the top end of the clamping groove fixing block (302), an iron core (303) is embedded in the iron core clamping groove (301), and a main coil (304) and two secondary coils (305) are wound on the surface of the iron core (303).

5. The distribution transformer with good contact according to claim 4, wherein a coil fixing plate (307) is clamped in the middle of the primary coil (304) and the two secondary coils (305), coil top bases (308) are installed at the top ends of the primary coil (304) and the two secondary coils (305), and two ends of the coil top bases (308) are fixed with the inside of the transformer box (1) through bolts.

6. A well-contacted distribution transformer according to claim 4, characterized in that the primary winding (304) and the two secondary windings (305) are connected with high-voltage transforming wires (306) by full rolling, with low-voltage transforming wires (309) by half rolling, and the high-voltage transforming wires (306) cannot be connected with the low-voltage transforming wires (309) at the same time, the transformer tank (1) is internally placed with insulating oil, and the transformer tank (1), the side-end cooling fins (204) and the main cooling fins (205) are all in communication.

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