CN210378704U - Distribution transformer adopting iron core long round structure - Google Patents

Abstract

The utility model discloses an adopt distribution transformer of iron core class long circular structure, including the transformer case, the bottom of transformer incasement wall is provided with first iron core, second iron core and third iron core respectively, the top fixedly connected with roof of transformer case to the top of roof is provided with the fixed screw, the top of roof is provided with the sleeve pipe, the both sides of transformer case all are provided with the plate radiator, the bottom of transformer case both sides all is provided with the connecting seat, there is first wind channel between one side that first iron core and second iron core are relative. A distribution transformer who adopts iron core class long circular structure, first iron core, second iron core and the third iron core and first wind channel, second wind channel and the third wind channel that are equipped with long circular cross section can practice thrift transformer manufacturing cost, increase economic benefits can also increase transformer heat dispersion, bring better use prospect.

Description

Distribution transformer adopting iron core long round structure

Technical Field

The utility model relates to a distribution transformer technical field specifically is an adopt distribution transformer of iron core class long circle structure.

Background

A distribution transformer is a static electric appliance used in a distribution system for transforming alternating voltage and current according to the law of electromagnetic induction to transmit alternating current energy, Chinese transformer products can be generally divided into extra-high voltage (750KV and above), extra-high voltage (500KV) transformers, 220-plus-110 KV transformers, 35KV and below transformers according to voltage grades, the distribution transformer is a power transformer which is operated in a distribution network and directly supplies power to terminal users with the voltage grade of 10-35KV and the capacity of 6300KVA and below, the distribution power transformer is static electric equipment and is equipment used for changing alternating voltage (current) with a certain value into another voltage (current) with the same frequency or a plurality of values. When the primary winding is energized with an alternating current, an alternating magnetic flux is generated, and the alternating magnetic flux is magnetically conducted through the iron core, so that an alternating electromotive force is induced in the secondary winding.

Because the size of the transmission power of the power transformer depends on the material and the cross-sectional area of the iron core, in the transformer industry, the conventional view considers that the circular cross-sectional area is the largest and the circumference is the smallest, so that the iron core of the common transformer is of a circular structure, but the conventional view considers the consumption of copper but not the cost of silicon steel sheets of the transformer, and the iron core generally adopting an oblong structure has no obvious advantage in the aspect of heat dissipation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an adopt distribution transformer of iron core class long circle structure possesses to practice thrift under the condition that does not change transformer transmission power iron core cost and heat dissipation advantage such as good, has solved the higher problem of current transformer iron core cost.

(II) technical scheme

For realize above-mentioned not change under the condition of transformer transmission power practice thrift iron core cost and the good purpose of heat dissipation, the utility model provides a following technical scheme: the utility model provides an adopt distribution transformer of iron core class long circle structure, includes the transformer case, the bottom of transformer incasement wall is provided with first iron core, second iron core and third iron core respectively, the top fixedly connected with roof of transformer case to the top of roof is provided with the fixed screw, the top of roof is provided with the sleeve pipe, the both sides of transformer case all are provided with the plate radiator, the bottom of transformer case both sides all is provided with the connecting seat.

Preferably, there is first wind channel between the relative one side of first iron core and second iron core to be provided with first wind channel between the relative one side of second iron core and third iron core, the pitch arc department at second iron core top and bottom is provided with the second wind channel.

Preferably, the first iron core, the second iron core and the third iron core are fixedly connected in a delta shape, and a third air duct is arranged between one opposite sides of the first iron core, the second iron core and the third iron core.

Preferably, the cross sections of the first iron core, the second iron core and the third iron core are all of oblong structures.

Preferably, the coil is wound without blocking the second air ducts, and the coil is wound with reducing the cross-sectional area of the two sets of first air ducts.

Preferably, the core unit chips of the first core, the second core and the third core are silicon steel sheets.

Preferably, the material of the finned radiator is a high-quality cold-rolled steel plate, and the model of the cold-rolled steel plate is ST 13.

(III) advantageous effects

Compared with the prior art, the utility model provides an adopt distribution transformer of iron core class long circle structure possesses following beneficial effect:

1. this adopt distribution transformer of iron core class long circular structure, through under the circumstances at the constant cross-section, turn into long circular cross-section iron core with circular cross-section iron core, after the conversion, transformer copper's quantity can increase, silicon steel sheet's quantity can reduce, silicon steel sheet's price is greater than copper's price, so through the setting of long circular structure, make the transformer under the unchangeable circumstances of transmission power, the manufacturing cost of voltage ware has been reduced, economic benefits has been improved, better economic environment is provided for laying of transformer.

2. This kind of distribution transformer who adopts iron core class long circle structure, through the setting in first wind channel and second wind channel for after coil and iron core form the winding, can dispel the heat in horizontal direction, through the setting in third wind channel again, make the winding can dispel the heat in fore-and-aft direction, thereby showing improvement the heat dispersion of transformer, and guaranteed the normal life of transformer, avoided the transformer to damage because of overheated.

Drawings

Fig. 1 is a schematic view of the overall structure of a distribution transformer adopting an iron core long round structure according to the present invention;

fig. 2 is a schematic diagram of an iron core structure of a distribution transformer adopting an iron core long round structure according to the present invention;

fig. 3 is the utility model relates to an adopt distribution transformer iron core's of iron core class long circular structure cross section schematic diagram.

In the figure: 1. a transformer tank; 2. a first iron core; 3. a second iron core; 4. a third iron core; 5. a second air duct; 6. a first air duct; 7. a third air duct; 8. a top plate; 9. fixing screws; 10. a sleeve; 11. a finned heat sink; 12. a connecting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a distribution transformer adopting an iron core-like long round structure includes a transformer box 1, a first iron core 2, a second iron core 3 and a third iron core 4 are respectively disposed at the bottom of the inner wall of the transformer box 1, a top plate 8 is fixedly connected to the top of the transformer box 1, a fixing screw 9 is disposed at the top of the top plate 8, a sleeve 10 is disposed at the top of the top plate 8, plate radiators 11 are disposed at both sides of the transformer box 1, the plate radiators 11 are made of high-quality cold-rolled steel plates, and connecting seats 12 are disposed at the bottoms of both sides of the ST13 transformer box 1.

Furthermore, a first air duct 6 is arranged between one side, opposite to the first iron core 2 and the second iron core 3, of the second iron core 3 and one side, opposite to the third iron core 4, of the third iron core 3, a second air duct 5 is arranged at the top and the bottom of the second iron core 3, and through the arrangement of the first air duct 6 and the second air duct 5, after the coil and the iron cores form a winding, heat can be dissipated in the transverse direction, and heat dissipation performance is improved.

Furthermore, the first iron core 2, the second iron core 3 and the third iron core 4 are fixedly connected in a delta shape, a third air channel 7 is arranged between one side, opposite to the first iron core 2, the second iron core 3 and the third iron core 4, and the winding can radiate heat in the longitudinal direction through the arrangement of the third air channel 7, so that the radiating performance of the transformer is remarkably improved.

Furthermore, the cross sections of the first iron core 2, the second iron core 3 and the third iron core 4 are all of long circular structures, and the long circular structures are arranged, so that the manufacturing cost of the transformer is reduced, the economic benefit is improved, and a better economic environment is provided for better laying of the transformer under the condition that the transmission power of the transformer is not changed.

Furthermore, the coil cannot block the second air duct 5 during winding, the cross-sectional areas of the two groups of first air ducts 6 can be reduced during winding, and the heat dissipation function is not affected.

Further, the core unit chips of the first iron core 2, the second iron core 3 and the third iron core 4 are silicon steel sheets, so that better electromagnetic induction can be performed.

The working principle is as follows: the distribution transformer adopting the iron core type long circular structure converts the iron core with the circular cross section into the iron core with the long circular cross section under the condition of the equal cross section, after conversion, the copper consumption of the transformer is increased, the silicon steel sheet consumption is reduced, because the price of the silicon steel sheet is greater than that of the copper, the transformer reduces the manufacturing cost of the transformer under the condition of unchanged transmission power through the long circular structure, improves the economic benefit, provides a better economic environment for better laying of the transformer, after a coil and the iron core form a winding, the heat can be radiated in the transverse direction through the arrangement of the first air duct 6 and the second air duct 5, and the heat can be radiated in the longitudinal direction through the arrangement of the third air duct 7, so the heat radiation performance of the transformer is obviously improved, and the normal service life of the transformer is ensured, the transformer is prevented from being damaged due to overheating.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an adopt distribution transformer of iron core class long circle structure, includes transformer case (1), its characterized in that: the bottom of transformer case (1) inner wall is provided with first iron core (2), second iron core (3) and third iron core (4) respectively, all be equipped with the coil on first iron core (2), second iron core (3) and third iron core (4), the top fixedly connected with roof (8) of transformer case (1) to the top of roof (8) is provided with set screw (9), the top of roof (8) is provided with sleeve pipe (10), the both sides of transformer case (1) all are provided with plate radiator (11), the bottom of transformer case (1) both sides all is provided with connecting seat (12).

2. The distribution transformer adopting the iron core-like long round structure as claimed in claim 1, wherein: there is first wind channel (6) between first iron core (2) and the relative one side of second iron core (3) to be provided with first wind channel (6) between the relative one side of second iron core (3) and third iron core (4), the pitch arc department at second iron core (3) top and bottom is provided with second wind channel (5).

3. The distribution transformer adopting the iron core-like long round structure as claimed in claim 1, wherein: first iron core (2), second iron core (3) and third iron core (4) are article font fixed connection, be equipped with third wind channel (7) between first iron core (2), second iron core (3) and the relative one side of third iron core (4).

4. The distribution transformer adopting the iron core-like long round structure as claimed in claim 1, wherein: the cross sections of the first iron core (2), the second iron core (3) and the third iron core (4) are all of oblong structures.

5. The distribution transformer adopting the iron core-like long round structure as claimed in claim 1, wherein: the coil does not block the second air duct (5) when being wound, and the cross-sectional areas of the two groups of first air ducts (6) are reduced when the coil is wound.

6. The distribution transformer adopting the iron core-like long round structure as claimed in claim 1, wherein: the iron core unit chips of the first iron core (2), the second iron core (3) and the third iron core (4) are silicon steel sheets.

7. The distribution transformer adopting the iron core-like long round structure as claimed in claim 1, wherein: the finned radiator (11) is made of a high-quality cold-rolled steel plate, and the type of the cold-rolled steel plate is ST 13.

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