CN217507058U

CN217507058U - Dry-type transformer that radiating effect is good

Info

Publication number: CN217507058U
Application number: CN202221627923.6U
Authority: CN
Inventors: 徐学文; 李德生; 黄向辉
Original assignee: Nanyang Ruiguang Transformer Co ltd
Current assignee: Nanyang Ruiguang Transformer Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-09-27
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a dry-type transformer with good heat dissipation effect, which comprises an iron core, an upper fixing clamp, a coil and a lower fixing clamp, wherein the upper fixing clamp and the lower fixing clamp correspondingly clamp the upper part and the lower part of the fixed iron core; three vertical cores of the iron core are sleeved with coils, each coil comprises a low-voltage coil and a high-voltage coil, and a gap is reserved between the outer wall of each low-voltage coil and the inner wall of each high-voltage coil and is a cooling chamber; the lower fixing clamp is provided with three cooling shells used for corresponding to the supporting coils, the outer wall of the vertical core body of the iron core is sleeved with the cooling shells, and a ring groove is formed in the side face, abutted against the lower portion of the coil, of each cooling shell. The utility model discloses a fan is bloied to the inner chamber of cooling housing, and wind enters into in the cooling chamber through the annular to can blow the cooling to low-voltage coil and high-voltage coil, improve cooling efficiency greatly, wind-force upwards weakens the not good problem of coil radiating effect when having solved traditional fan bottom setting.

Description

Dry-type transformer that radiating effect is good

Technical Field

The utility model relates to a dry-type transformer technical field specifically is a dry-type transformer that radiating effect is good.

Background

Dry-type transformers are widely used in local lighting, high-rise buildings, mechanical equipment and other places, and simply speaking, dry-type transformers refer to transformers in which iron cores and windings are not immersed in insulating oil. The cooling mode of the dry-type transformer is divided into natural air cooling and forced air cooling, and when the dry-type transformer is subjected to natural air cooling, the transformer can continuously run for a long time under the rated capacity; during forced air cooling, the output capacity of the transformer can be improved by 50%, the transformer is suitable for discontinuous overload operation or emergency accident overload operation, the conventional dry-type transformer is usually cooled by adopting forced air, a fan is generally arranged at the bottom of the dry-type transformer and is used for blowing air to the surface of a coil for cooling, the wind force is weakened when the fan blows air upwards, the heat dissipation effect on the upper part of the surface of the coil and the inside of the coil is not ideal, and the heat dissipation performance is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a dry-type transformer that radiating effect is good, blow to the inner chamber of cooling housing through the fan, wind enters into in the cooling chamber through the annular to can blow the cooling to low-voltage coil and high-voltage coil, improve cooling efficiency greatly, wind-force upwards weakens the not good problem of coil radiating effect when having solved traditional fan bottom and setting up, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a dry-type transformer with good heat dissipation effect comprises an iron core, an upper fixing clamp, a coil and a lower fixing clamp, wherein the upper fixing clamp and the lower fixing clamp correspondingly clamp the upper part and the lower part of the fixed iron core; the three vertical cores of the iron core are sleeved with coils, the coils comprise a low-voltage coil and a high-voltage coil, the low-voltage coil is positioned on the inner side of the high-voltage coil, a gap is reserved between the outer wall of the low-voltage coil and the inner wall of the high-voltage coil, and the gap is a cooling chamber; the lower fixation clamp is provided with three cooling shells used for corresponding to the support coil, the outer wall of the vertical core body of the iron core is sleeved with the cooling shell, an annular groove is formed in the side face, abutted to the lower portion of the coil, of the cooling shell, the annular groove is opposite to the cooling cavity, and the outer wall of the cooling shell is further provided with a fan blowing air to the inner cavity of the fan.

Preferably, the fan includes the casing, and the casing passes through the support and is connected with lower fixed clamp is fixed, is equipped with the fan in the casing, and the casing passes through inlet air channel and the inner chamber intercommunication of cooling housing.

Preferably, go up the fixation clamp and all include two channel-section steels with the fixation clamp structure is unanimous, the double-phase opposite of two channel-section steels corresponds with the iron core and contradicts, and two channel-section steels are taut through two sets of lead screws and four nuts.

Preferably, the lower part of lower fixation clamp is equipped with the supporting baseplate who is used for bearing iron core bottom, and supporting baseplate is equipped with two, and supporting baseplate passes through the channel-section steel fixed connection of bolt and nut group and lower fixation clamp.

Preferably, the cross-sectional width of the ring groove is smaller than the cross-sectional width of the cooling chamber.

Preferably, the upper part of the lower fixing clip is provided with a mounting groove for placing the cooling shell.

Compared with the prior art, the beneficial effects of the utility model are that: support the coil through setting up the cooling casing, the annular of cooling casing is just to the cooling cavity, blows to the inner chamber of cooling casing through the fan, and wind enters into the cooling cavity through the annular to can blow the cooling to low-voltage coil and high-voltage coil, improve cooling efficiency greatly, wind-force upwards weakens the not good problem of coil radiating effect when having solved traditional fan bottom and setting.

Drawings

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

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

fig. 4 is a schematic view of a local structure of the present invention.

In the figure: 1 iron core, 2 go up fixation clamp, 3 coils, 3.1 low pressure coil, 3.2 cooling chamber, 3.3 pressure coil, 4 lower fixation clamps, 4.1 mounting grooves, 5 cooling casings, 5.1 annular, 6 fans, 6.1 supports, 6.2 casings, 6.3 fans, 7 inlet air channels, 8 supporting baseplate, 8.1 bolt and nut group.

Detailed Description

In the following description, the technical solution of the present invention will be described with reference to the accompanying drawings in the embodiment of the present invention, it should be understood that, if there are the indicated positions or positional relationships such as "upper", "lower", "front", "rear", "left", "right", etc., it only corresponds to the drawings of the present invention, and for convenience of description, it is not intended to indicate or imply that the indicated device or element must have a specific position:

referring to fig. 1-4, the present invention provides a technical solution: a dry-type transformer with good heat dissipation effect comprises an iron core 1, an upper fixing clamp 2, a coil 3 and a lower fixing clamp 4, wherein the upper fixing clamp 2 and the lower fixing clamp 4 correspondingly clamp and fix the upper part and the lower part of the iron core 1; three vertical cores of the iron core 1 are sleeved with coils 3, each coil 3 comprises a low-voltage coil 3.1 and a high-voltage coil 3.3, the low-voltage coil 3.1 is connected with low-voltage electricity, the high-voltage coil 3.3 is connected with high-voltage electricity to realize voltage reduction, the low-voltage coil 3.1 is positioned on the inner side of the high-voltage coil 3.3, a gap is reserved between the outer wall of the low-voltage coil 3.1 and the inner wall of the high-voltage coil 3.3, and the gap is a cooling chamber 3.2; the lower fixing clamp 4 is provided with three cooling shells 5 used for correspondingly supporting the coil 3, the cooling shells 5 are sleeved on the outer wall of the vertical core body of the iron core 1, the side surface, abutted against the lower part of the coil 3, of each cooling shell 5 is provided with a ring groove 5.1, each ring groove 5.1 is opposite to a cooling chamber 3.2, and the outer wall of each cooling shell 5 is further provided with a fan 6 blowing air to the inner cavity of the cooling shell;

it can be understood that the coil 3 is supported by the cooling shell 5, the ring groove 5.1 of the cooling shell 5 is opposite to the cooling chamber 3.2, air is blown to the inner cavity of the cooling shell 5 through the fan 6, and the air enters the cooling chamber 3.2 through the ring groove 5.1, so that the low-voltage coil 3.1 and the high-voltage coil 3.3 can be cooled by blowing, and the cooling efficiency is greatly improved;

specifically, the fan 6 comprises a shell 6.2, the shell 6.2 is fixedly connected with the lower fixing clamp 4 through a support 6.1, a fan 6.3 is arranged in the shell 6.2, the shell 6.2 is communicated with an inner cavity of the cooling shell 5 through an air inlet channel 7, the fan 6.3 is arranged in the shell 6.2, and when the fan 6.3 works, air is blown into the inner cavity of the cooling shell 5 through the air inlet channel 7;

furthermore, the upper fixing clamp 2 and the lower fixing clamp 4 both comprise two channel steels in a consistent structure, two opposite surfaces of the two channel steels are correspondingly abutted against the iron core 1, the two channel steels are tensioned through two groups of screw rods and four nuts, the nuts at two ends of the screw rods are correspondingly abutted against the two channel steels, the two channel steels are tensioned by screwing the nuts, and the upper part and the lower part of the iron core 1 are fixed;

furthermore, the lower part of the lower fixing clamp 4 is provided with two supporting bottom plates 8 for supporting the bottom of the iron core 1, and the supporting bottom plates 8 are fixedly connected with channel steel of the lower fixing clamp 4 through bolt and nut groups 8.1;

further, the section width of the ring groove 5.1 is smaller than that of the cooling chamber 3.2, so that the sealing effect is improved, wind can completely enter the cooling chamber 3.2 through the ring groove 5.1, and if the section width of the cooling chamber 3.2 is larger than that of the ring groove 5.1, the wind is blown out from a gap;

in addition, the upper part of lower fixation clamp 4 is equipped with mounting groove 4.1 for placing cooling housing 5, is convenient for install fixed cooling housing 5.

The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims.

Claims

1. The utility model provides a dry-type transformer that radiating effect is good, includes iron core (1), goes up fixation clamp (2), coil (3) and lower fixation clamp (4), its characterized in that: the upper fixing clamp (2) and the lower fixing clamp (4) correspondingly clamp the upper part and the lower part of the fixed iron core (1); the three vertical cores of the iron core (1) are all sleeved with coils (3), each coil (3) comprises a low-voltage coil (3.1) and a high-voltage coil (3.3), the low-voltage coils (3.1) are located on the inner sides of the high-voltage coils (3.3), gaps are reserved between the outer walls of the low-voltage coils (3.1) and the inner walls of the high-voltage coils (3.3), and the gaps are cooling chambers (3.2); lower fixation clamp (4) are equipped with three cooling casing (5) that are used for corresponding support coil (3), and the outer wall of the vertical core of iron core (1) is located to cooling casing (5) cover, and annular (5.1) have been seted up to the side that cooling casing (5) contradict with coil (3) lower part, and annular (5.1) are just to cooling chamber (3.2), and the outer wall of cooling casing (5) still is equipped with fan (6) of blowing to its inner chamber.

2. The dry-type transformer with good heat dissipation effect as claimed in claim 1, wherein: fan (6) include casing (6.2), and casing (6.2) are equipped with fan (6.3) through support (6.1) and lower fixation clamp (4) fixed connection in casing (6.2), casing (6.2) through inlet air channel (7) and the inner chamber intercommunication of cooling housing (5).

3. The dry-type transformer with good heat dissipation effect as claimed in claim 1, wherein: go up fixation clamp (2) and all include two channel-section steels with lower fixation clamp (4) structure unanimously, the two opposite of two channel-section steels corresponds with iron core (1) and contradicts, and two channel-section steels are taut through two sets of lead screws and four nuts.

4. The dry-type transformer with good heat dissipation effect as claimed in claim 3, wherein: the lower part of lower fixation clamp (4) is equipped with supporting baseplate (8) that are used for bearing iron core (1) bottom, and supporting baseplate (8) are equipped with two, and supporting baseplate (8) are through the channel-section steel fixed connection of bolt and nut group (8.1) and lower fixation clamp (4).

5. The dry-type transformer with good heat dissipation effect as claimed in claim 1, wherein: the section width of the ring groove (5.1) is smaller than that of the cooling cavity (3.2).

6. The dry-type transformer with good heat dissipation effect as claimed in claim 1, wherein: the upper part of the lower fixing clamp (4) is provided with a mounting groove (4.1) for placing a cooling shell (5).