CN220691827U

CN220691827U - Dry-type transformer with improved temperature control box

Info

Publication number: CN220691827U
Application number: CN202322345550.4U
Authority: CN
Inventors: 余明秀
Original assignee: Dingqi Technology Co ltd
Current assignee: Dingqi Technology Co ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-03-29
Anticipated expiration: 2033-08-30

Abstract

The utility model relates to the technical field of dry transformers, in particular to a dry transformer with an improved temperature control box, which comprises: the temperature regulating device is formed by a semiconductor refrigerating sheet, and the refrigerating surface of the semiconductor refrigerating sheet is arranged in the inner circulation channel; according to the utility model, the circulation of the gas in the inner cavity of the inner cylinder can be accelerated through the fan, the gas in the inner cylinder is uniformly distributed by the circularly flowing gas, and the redundant heat on the electric element in the inner cylinder is taken away; and cooperate attemperator and fan, can be great increase the heat dispersion of electrical component, the steady cooling is carried out to the internal recycle gas in proper order to can realize keeping constant temperature with the electrical component in the inner tube.

Description

Dry-type transformer with improved temperature control box

Technical Field

The utility model relates to the technical field of dry transformers, in particular to a dry transformer with an improved temperature control box.

Background

Dry transformers are widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply said dry transformers refer to transformers in which the iron cores and windings are not immersed in insulating oil. Existing dry transformers are classified into natural air cooling and forced air cooling. During natural air cooling, the transformer can continuously operate for a long time under rated capacity. When forced air cooling is performed, the output capacity of the transformer can be improved by 50%.

However, the forced air cooling takes away heat through wind, the taken away heat has a great relationship with the original wind temperature, and heat cannot be stably dissipated, so that the inside of the transformer is always kept at a constant temperature, and the heat dissipation performance is slightly insufficient. Namely, the forced air cooling heat dissipation performance in the existing dry-type transformer is slightly insufficient. In view of this, we propose a dry-type transformer with an improved temperature-controlled box.

Disclosure of Invention

In order to make up for the slightly insufficient cooling and heat dissipation performance of the forced air cooling in the existing dry-type transformer, the utility model provides the dry-type transformer with the improved temperature control box.

The technical scheme of the utility model is as follows:

the dry-type transformer with the improved temperature control box comprises a shell arranged on the periphery of a dry-type transformer body, wherein an inner circulation channel is arranged in the shell, and a fan is arranged in the inner circulation channel;

the temperature adjusting device is arranged on one side of the shell and is composed of a semiconductor refrigerating sheet, and the refrigerating surface of the semiconductor refrigerating sheet is arranged in the inner circulation channel.

Preferably, the shell is composed of an upper cover, a bottom plate, a partition plate, an upper shell, a lower shell and an inner cylinder, wherein a plurality of lower air holes are formed in the upper end of the inner cylinder, and a plurality of upper air holes are formed in the lower end of the inner cylinder.

Preferably, the upper cover and the bottom plate are respectively mounted at the upper end and the lower end of the inner cylinder, the upper shell and the lower shell are respectively mounted at the periphery of the inner cylinder, and the upper shell is mounted at the upper end of the lower shell.

Preferably, the upper housing is mounted below the upper cover, the lower housing is mounted above the bottom plate, the partition plate is mounted on the periphery of the inner cylinder, the upper side and the lower side of the partition plate are respectively connected with the upper housing and the lower housing, and the fan is mounted on the partition plate.

Preferably, the semiconductor cooling fin is mounted on the lower housing, an inner cooling fin is mounted on the inner side of the semiconductor cooling fin, the inner cooling fin and the inner cylinder are in contact with each other, and the inner cooling fin is arranged under the fan.

Preferably, an outer cooling fin is mounted on the outer side of the semiconductor cooling fin, a guide box is arranged on the periphery of the outer cooling fin, and the guide box is mounted on the lower shell.

Preferably, the outlet end of the guide box is provided with a net cover, and the guide box is provided with a plurality of air inlets.

Preferably, a fan is installed in the guide box.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the circulation of the gas in the inner cavity of the inner cylinder can be accelerated through the fan, the gas in the inner cylinder is uniformly distributed by the circularly flowing gas, and the redundant heat on the electric element in the inner cylinder is taken away; and cooperate attemperator and fan, can be great increase the heat dispersion of electrical component, the steady cooling is carried out to the internal recycle gas in proper order to can realize keeping constant temperature with the electrical component in the inner tube.

Drawings

FIG. 1 is an axial view of the present utility model;

FIG. 2 is an isometric cutaway view of the present utility model;

fig. 3 is a side cut-away view of the present utility model.

In the figure: 1. an upper cover; 2. a bottom plate; 3. a partition plate; 4. an upper housing; 5. a lower housing; 6. a guide box; 7. a mesh enclosure; 8. an air inlet hole; 9. an outer fin; 10. a semiconductor refrigeration sheet; 11. an inner fin; 12. a fan; 13. an inner cylinder; 14. a lower air hole; 15. an upper air hole; 16. a blower.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, the present utility model is described in detail by the following embodiments:

the dry-type transformer with the improved temperature control box comprises a shell arranged on the periphery of a dry-type transformer body, wherein the shell is composed of an upper cover 1, a bottom plate 2, a partition plate 3, an upper shell 4, a lower shell 5 and an inner cylinder 13, a plurality of lower air holes 14 are formed in the upper end of the inner cylinder 13, a plurality of upper air holes 15 are formed in the lower end of the inner cylinder 13, the upper cover 1 and the bottom plate 2 are respectively and fixedly installed at the upper end and the lower end of the inner cylinder 13 in a sealing mode, the upper shell 4 and the lower shell 5 are respectively installed on the periphery of the inner cylinder 13, the upper shell 4 is installed at the upper end of the lower shell 5, the upper shell 4 is fixedly installed below the upper cover 1 in a sealing mode, the lower shell 5 is fixedly installed above the bottom plate 2 in a sealing mode, round holes are formed in the partition plate 3, the upper side and the lower side of the partition plate 3 are respectively connected with the upper shell 4 and the lower shell 5, through holes are formed in the partition plate 3, and fans 12 are installed in the through holes in the partition plate 3.

It should be noted that, the inner cavity of the inner cylinder 13 is used for installing an electrical component for a transformer, an inner circulation channel is arranged in the shell, the inner circulation channel sequentially comprises an inner cavity of the inner cylinder 13, a plurality of upper air holes 15, an upper cover 1, a partition plate 3, a cavity between the upper shell 4 and the inner cylinder 13, a perforation in the partition plate 3, a cavity between the bottom plate 2, the partition plate 3, the lower shell 5 and the inner cylinder 13, a plurality of lower air holes 14 and an inner cavity of the inner cylinder 13, when the fan 12 in the perforation is in a working state, the fan 12 can accelerate the circulation of air in the shell, the circulated air distributes the air temperature in the inner cylinder 13 uniformly, and takes away redundant heat on the electrical component in the inner cylinder 13, so that the local temperature in the inner cylinder 13 is effectively avoided.

In this embodiment, the lower casing 5 is provided with a temperature adjusting device, the temperature adjusting device is composed of an outer cooling fin 9, a semiconductor cooling fin 10 and an inner cooling fin 11, the semiconductor cooling fin 10 is fixedly installed on the lower casing 5, a cooling surface of the semiconductor cooling fin 10 is arranged in an inner circulation channel, the inner cooling fin 11 is fixedly installed on the inner side of the semiconductor cooling fin 10, the inner cooling fin 11 and the inner cylinder 13 are in contact with each other, the inner cooling fin 11 is arranged under a fan 12, the outer cooling fin 9 is fixedly installed on the outer side of the semiconductor cooling fin 10, a guide box 6 is arranged on the periphery of the outer cooling fin 9, the guide box 6 is fixedly installed on the lower casing 5, a net cover 7 is fixedly installed at the outlet end of the guide box 6, a plurality of air inlets 8 are installed on the guide box 6, a fan 16 is fixedly installed in the guide box 6, and a plurality of air inlets 8 are arranged on the periphery of the outer cooling fin 9.

It should be noted that, the storage battery is fixedly installed on the lower shell 5, the storage battery is respectively connected with the semiconductor refrigerating fin 10, the fan 12 and the fan 16 through wires, the semiconductor refrigerating fin 10 is also called a thermoelectric refrigerating fin, which is a heat pump, the heat pump has the advantages that no sliding part is used, the application is limited in some space, the reliability requirement is high, the occasion of no refrigerant pollution is realized, the Peltier effect of semiconductor materials is utilized, when direct current passes through a couple formed by connecting two different semiconductor materials in series, the two ends of the couple can absorb heat and release heat respectively, the purpose of refrigeration can be realized, the temperature difference range of the semiconductor refrigerating fin 10 can be realized from positive temperature 90 ℃ to negative temperature 130 ℃, the refrigerating surface of the semiconductor refrigerating fin 10 is arranged in an inner circulation channel, the inner radiating fin 11 and the outer radiating fin 9 are both made of metal materials with smaller specific heat, the heat can be rapidly conducted, the inner radiating fin 11 and the outer radiating fin 9 are in the shape of a fence, the contact area with surrounding gas is increased, the inner fin 11 can increase the contact area of the inner circulating gas and the semiconductor refrigerating fin 10, the inner side and the semiconductor refrigerating fin 10 can be led to the outer radiating fin 9 to the outer side through the fan 16, the outer radiating fin 16 can be accelerated, the air can flow through the outer radiating fin 16, and the outer radiating fin 9 is in the state of the outer radiating fin 9 is in the outer side of the air cooling fin 6, and the air is in the state of the air cooling box is in the air cooling box, and the air is in the air cooling device is in the air cooling state.

In this embodiment, when cooling the electrical components in the inner cavity of the inner cylinder 13, the plurality of upper air holes 15, the cavity between the upper cover 1, the partition plate 3, the upper shell 4 and the inner cylinder 13, the perforation in the partition plate 3, the bottom plate 2, the partition plate 3, the lower shell 5 and the cavity between the inner cylinder 13, the plurality of lower air holes 14, and the circulation of the air in the inner cavity of the inner cylinder 13 can be accelerated by the fan 12, the circulating air distributes the air temperature in the inner cylinder 13 uniformly and takes away the redundant heat on the electrical components in the inner cylinder 13, the local temperature in the inner cylinder 13 is effectively avoided to be too high, then the semiconductor refrigeration sheet 10 is matched for refrigeration, the inner cooling sheet 11 can increase the heat exchange between the inner circulating air and the inner side of the semiconductor refrigeration sheet 10, and the inner cooling sheet 11 is positioned under the fan 12, the inner circulating air can be cooled in sequence, the cooled internal circulation gas can cool the electric element in turn, the semiconductor refrigerating sheet 10 greatly increases the heat radiation performance of the electric element, the external radiating fin 9 and the fan 16 are matched, the heat radiation of the outer side of the semiconductor refrigerating sheet 10 can be increased, when the fan 16 is in a working state, the fan 16 can extract the external gas through a plurality of air inlets 8, flow through the external radiating fin 9 and then be discharged through the outlet end of the guide box 6, namely the fan 16 accelerates the heat radiation of the external radiating fin 9 and the outer side of the semiconductor refrigerating sheet 10, thereby timely radiating the heating surface of the outer side of the semiconductor refrigerating sheet 10, the refrigerating stability of the refrigerating surface of the semiconductor refrigerating sheet 10 can be increased, namely the refrigerating temperature of the refrigerating surface of the semiconductor refrigerating sheet 10 is kept unchanged, and under the action of the matched fan 12, the gas temperature in the inner cylinder 13 is uniformly distributed, the gas in the inner cylinder 13 is driven to circulate stably to cool the electric element, thereby realizing that the electrical components in the inner cylinder 13 are kept at a constant temperature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The dry-type transformer with the improved temperature control box is characterized by comprising a shell arranged on the periphery of the dry-type transformer body, wherein an inner circulation channel is arranged in the shell, and a fan (12) is arranged in the inner circulation channel;

the temperature adjusting device is arranged on one side of the shell and is composed of a semiconductor refrigerating sheet (10), and the refrigerating surface of the semiconductor refrigerating sheet (10) is arranged in the inner circulation channel.

2. The dry-type transformer with improved temperature control box according to claim 1, wherein: the shell comprises an upper cover (1), a bottom plate (2), a partition plate (3), an upper shell (4), a lower shell (5) and an inner cylinder (13), wherein a plurality of lower air holes (14) are formed in the upper end of the inner cylinder (13), and a plurality of upper air holes (15) are formed in the lower end of the inner cylinder (13).

3. The dry-type transformer with improved temperature control box according to claim 2, wherein: the upper cover (1) and the bottom plate (2) are respectively arranged at the upper end and the lower end of the inner cylinder (13), the upper shell (4) and the lower shell (5) are respectively arranged at the periphery of the inner cylinder (13), and the upper shell (4) is arranged at the upper end of the lower shell (5).

4. The dry-type transformer with improved temperature control box according to claim 2, wherein: the upper shell (4) is arranged below the upper cover (1), the lower shell (5) is arranged above the bottom plate (2), the partition plate (3) is arranged on the periphery of the inner cylinder (13), the upper side and the lower side of the partition plate (3) are respectively connected with the upper shell (4) and the lower shell (5) mutually, and the fan (12) is arranged on the partition plate (3).

5. The dry-type transformer with improved temperature control box according to claim 2, wherein: the semiconductor refrigerating sheet (10) is arranged on the lower shell (5), an inner radiating sheet (11) is arranged on the inner side of the semiconductor refrigerating sheet (10), the inner radiating sheet (11) and the inner cylinder (13) are in contact with each other, and the inner radiating sheet (11) is arranged under the fan (12).

6. The dry-type transformer with improved temperature control box according to claim 2, wherein: an outer radiating fin (9) is arranged on the outer side of the semiconductor refrigerating fin (10), a guide box (6) is arranged on the periphery of the outer radiating fin (9), and the guide box (6) is arranged on the lower shell (5).

7. The dry-type transformer with improved temperature control box according to claim 6, wherein: the outlet end of the guide box (6) is provided with a net cover (7), and the guide box (6) is provided with a plurality of air inlets (8).

8. The dry-type transformer with improved temperature control box according to claim 6, wherein: a fan (16) is arranged in the guide box (6).