CN210640093U - High-efficiency heat dissipation type dry-type transformer - Google Patents

High-efficiency heat dissipation type dry-type transformer Download PDF

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Publication number
CN210640093U
CN210640093U CN201921281198.XU CN201921281198U CN210640093U CN 210640093 U CN210640093 U CN 210640093U CN 201921281198 U CN201921281198 U CN 201921281198U CN 210640093 U CN210640093 U CN 210640093U
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China
Prior art keywords
voltage coil
support
pressing block
low
voltage
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Active
Application number
CN201921281198.XU
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Chinese (zh)
Inventor
翁遂波
向群
李静
张繁
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Hubei Edian Deli Electrical Co ltd
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Hubei Edian Deli Electrical Co ltd
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Priority to CN201921281198.XU priority Critical patent/CN210640093U/en
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Abstract

The utility model discloses a high-efficient heat dissipation type dry-type transformer, lower carriage fixed mounting is on the base, the upper portion and the lower part of iron core are blocked respectively and are put in upper bracket and lower carriage, have seted up the through-hole on upper bracket and lower carriage respectively, connecting screw wears to put in the through-hole of upper bracket and lower carriage, coupling nut puts on connecting screw soon, wind scooper fixed mounting is on the lower carriage, is provided with the barrel that is linked together with the wind scooper is inside on the upper portion of wind scooper, is provided with the limiting plate on the inner wall of barrel, the iron core is worn to put in wind scooper and barrel, forms first annular ventilation groove between barrel and iron core, the fixed cover of low-voltage coil is put in the barrel outside, the utility model discloses the advantage is: the interior is fully cooled, so that the heat dissipation effect is greatly improved, and the normal and stable work of the transformer is effectively guaranteed.

Description

High-efficiency heat dissipation type dry-type transformer
Technical Field
The utility model relates to a technical field of transformer, more specifically say so and relate to dry-type transformer's technical field.
Background
A transformer is a stationary electrical device that converts ac power of one voltage class to ac power of another voltage class using the principle of electromagnetic induction, and the main role of a transformer in an electrical power system is to transform voltage to facilitate power transmission. The transformer can be divided into a dry type transformer and an oil immersed transformer according to a cooling mode, the common dry type transformer in the market at present usually carries out heat dissipation by installing a fan on a transformer body, however, when the dry type transformer is cooled by the fan, air flow cannot well flow through the inside of the transformer body, so that the heat dissipation effect is not ideal, and the normal and stable work of the transformer cannot be well ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure in order to solve above-mentioned not enough, reasonable in design has fine radiating effect, can effectively ensure the high-efficient heat dissipation type dry-type transformer of transformer normal stable work.
The utility model discloses a solve above-mentioned technical problem and the technical solution who adopts as follows:
the high-efficiency heat dissipation dry-type transformer comprises an iron core, a high-voltage coil, a low-voltage coil, a base, an upper support, a lower support, an air blower, an upper pressing block, a lower pressing block, an air guide cover, a connecting screw rod, a connecting nut, a locking bolt, a zero line copper bar and a high-voltage access terminal, wherein the lower support is fixedly arranged on the base, the upper part and the lower part of the iron core are respectively clamped in the upper support and the lower support, through holes are respectively formed in the upper support and the lower support, the connecting screw rod penetrates through the through holes of the upper support and the lower support, the connecting nut is screwed on the connecting screw rod, the air guide cover is fixedly arranged on the lower support, a cylinder communicated with the inside of the air guide cover is arranged at the upper part of the air guide cover, a limiting plate is arranged on the inner wall of the cylinder, the iron core penetrates through the air guide cover, the low-voltage coil is fixedly sleeved outside the cylinder body, the high-voltage coil is sleeved outside the low-voltage coil, a second annular ventilation groove is formed between the high-voltage coil and the low-voltage coil, the upper pressing block and the lower pressing block are respectively provided with a first boss and a second boss, the lower pressing block is fixedly arranged on the air guide cover, the high-voltage coil and the low-voltage coil are arranged on the lower pressing block, the second boss of the lower pressing block is clamped in the second annular ventilation groove, the upper pressing block is pressed on the top of the high-voltage coil, the low-voltage coil and the cylinder body, the first boss of the upper pressing block is clamped in the second annular ventilation groove, the upper bracket is provided with a screw hole, the locking bolt is screwed in the screw hole and is pressed against the upper pressing block, the upper part of the air guide cover is provided with air outlet holes which are distributed annularly and correspond to the second annular ventilation groove, the side part of the air guide cover is provided with, the air blower is communicated with an air inlet of the air guide cover, the zero line copper bar is fixedly mounted on the upper support through a first insulator, one end of the low-voltage coil is provided with a low-voltage wiring end, the other end of the low-voltage coil is fixedly and electrically connected with the zero line copper bar, the head end of the high-voltage coil is electrically connected with the tail end of the next high-voltage coil sequentially through a connecting rod, the high-voltage access terminal is fixedly mounted on the upper support through a second insulator, and the high-voltage access terminal is electrically connected with the head end of the high-voltage coil.
The iron core is made of silicon steel sheets.
The utility model adopts the beneficial effect that above-mentioned technical solution can reach is: air is supplied into the air guide cover through the air blower, one part of air flow entering the air guide cover flows through the first annular ventilation groove, the other part of air flow is discharged from the air outlet hole and flows through the second annular ventilation groove, and the inside of the dry transformer is sufficiently cooled, so that the heat dissipation effect is greatly improved, and the normal stable work of the transformer is effectively guaranteed.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side cross-sectional view of FIG. 1;
FIG. 3 is a top cross-sectional view of FIG. 2;
fig. 4 is a cross-sectional view a-a of the present invention shown in fig. 3;
fig. 5 is a partially enlarged schematic view of a portion B in fig. 1.
Detailed Description
As shown in fig. 1, 2 and 3, the high-efficiency heat dissipation dry-type transformer includes an iron core 1, a high-voltage coil 2, a low-voltage coil 3, a base 4, an upper bracket 5, a lower bracket 6, an air blower 7, an upper press block 8, a lower press block 9, an air guide cover 10, a connecting screw rod 11, a connecting nut 12, a locking bolt 13, a zero line copper bar 14 and a high-voltage access terminal 15, wherein the lower bracket 6 is fixedly mounted on the base 4, the upper part and the lower part of the iron core 1 are respectively clamped in the upper bracket 5 and the lower bracket 6, as shown in fig. 5, through holes 16 are respectively formed in the upper bracket 5 and the lower bracket 6, the connecting screw rod 11 is inserted in the through holes 16 of the upper bracket 5 and the lower bracket 6, and the connecting nut 12 is screwed on the connecting screw rod 11. The wind scooper 10 is fixedly arranged on the lower bracket 6, a cylinder 17 communicated with the inside of the wind scooper 10 is arranged at the upper part of the wind scooper 10, a limit plate 18 is arranged on the inner wall of the cylinder 17, the iron core 1 penetrates through the wind scooper 10 and the cylinder 17, a first annular ventilation groove 19 is formed between the cylinder 17 and the iron core 1, the iron core 1 is made of silicon steel sheets, the low-voltage coil 3 is fixedly sleeved outside the cylinder 17, the high-voltage coil 2 is sleeved outside the low-voltage coil 3, a second annular ventilation groove 20 is formed between the high-voltage coil 2 and the low-voltage coil 3, a first boss 21 and a second boss 22 are respectively arranged on the upper pressing block 8 and the lower pressing block 9, the lower pressing block 9 is fixedly arranged on the wind scooper 10, the high-voltage coil 2 and the low-voltage coil 3 are arranged on the lower pressing block 9, the second boss 22 of the lower pressing block 9 is clamped in the second annular ventilation groove, the upper pressing block 8 is pressed on the tops of the high-voltage coil 2, the low-voltage coil 3 and the cylinder 17, the first boss 21 of the upper pressing block 8 is clamped in the second annular ventilation groove 20, the upper support 5 is provided with a screw hole 23, the locking bolt 13 is screwed in the screw hole 23, and the locking bolt 13 is pressed on the upper pressing block 8. The upper part of the wind scooper 10 is provided with air outlet holes 24 which are distributed annularly and correspond to the second annular ventilation groove 20, the lateral part of the wind scooper 10 is provided with an air inlet 25, the air blower 7 is fixedly arranged on the base 4, and the air blower 7 is communicated with the air inlet 25 of the wind scooper 10. Zero line copper bar 14 is through first insulator 26 fixed mounting on upper bracket 5, and a tip setting of low voltage coil 3 is low voltage wiring end 27, and another tip 32 and zero line copper bar 14 fixed electric of low voltage coil 3 are connected, the head end 29 of high voltage coil 2 loops through coupling lever 28 and is connected with the tail end 30 electricity of next high voltage coil 2, high pressure access terminal 15 passes through second insulator 30 fixed mounting on upper bracket 5, and high pressure access terminal 15 is connected with the head end 29 electricity of high voltage coil 2 through connecting wire 31 respectively.

Claims (2)

1. High-efficient heat dissipation type dry-type transformer, its characterized in that: the low-voltage coil air conditioner comprises an iron core, a high-voltage coil, a low-voltage coil, a base, an upper support, a lower support, an air blower, an upper pressing block, a lower pressing block, an air guide cover, a connecting screw rod, a connecting nut, a locking bolt, a zero line copper bar and a high-voltage access terminal, wherein the lower support is fixedly arranged on the base, the upper portion and the lower portion of the iron core are respectively clamped in the upper support and the lower support, through holes are respectively formed in the upper support and the lower support, the connecting screw rod penetrates through the through holes in the upper support and the lower support, the connecting nut is screwed on the connecting screw rod, the air guide cover is fixedly arranged on the lower support, a cylinder body communicated with the inside of the air guide cover is arranged at the upper portion of the air guide cover, a limiting plate is arranged on the inner wall of the cylinder body, the iron core penetrates through the air guide cover and the cylinder body, the high-voltage coil is sleeved outside the low-voltage coil, a second annular ventilation groove is formed between the high-voltage coil and the low-voltage coil, the upper pressing block and the lower pressing block are respectively provided with a first boss and a second boss, the lower pressing block is fixedly arranged on the air guide cover, the high-voltage coil and the low-voltage coil are arranged on the lower pressing block in an erected mode, the second boss of the lower pressing block is clamped in the second annular ventilation groove, the upper pressing block is pressed on the top of the high-voltage coil, the low-voltage coil and the barrel body, the first boss of the upper pressing block is clamped in the second annular ventilation groove, the upper support is provided with a screw hole, the locking bolt is screwed in the screw hole and is pressed against the upper pressing block, the upper portion of the air guide cover is provided with air outlet holes which are distributed in an annular mode and correspond to the second annular ventilation groove, the side portion of the air guide cover is provided with an air inlet, the zero line copper bar is fixedly mounted on the upper support through a first insulator, one end of the low-voltage coil is provided with a low-voltage wiring end, the other end of the low-voltage coil is fixedly and electrically connected with the zero line copper bar, the head end of the high-voltage coil is electrically connected with the tail end of the next high-voltage coil through a connecting rod in sequence, the high-voltage access terminal is fixedly mounted on the upper support through a second insulator, and the high-voltage access terminal is electrically connected with the head end of the high-voltage coil through a connecting wire.
2. A high efficiency heat dissipating dry-type transformer as claimed in claim 1, wherein: the iron core is made of silicon steel sheets.
CN201921281198.XU 2019-08-08 2019-08-08 High-efficiency heat dissipation type dry-type transformer Active CN210640093U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921281198.XU CN210640093U (en) 2019-08-08 2019-08-08 High-efficiency heat dissipation type dry-type transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921281198.XU CN210640093U (en) 2019-08-08 2019-08-08 High-efficiency heat dissipation type dry-type transformer

Publications (1)

Publication Number Publication Date
CN210640093U true CN210640093U (en) 2020-05-29

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Application Number Title Priority Date Filing Date
CN201921281198.XU Active CN210640093U (en) 2019-08-08 2019-08-08 High-efficiency heat dissipation type dry-type transformer

Country Status (1)

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CN (1) CN210640093U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112038044A (en) * 2020-09-01 2020-12-04 广州优讯环保科技有限公司 Environment-friendly dry-type power transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112038044A (en) * 2020-09-01 2020-12-04 广州优讯环保科技有限公司 Environment-friendly dry-type power transformer

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