CN211016703U

CN211016703U - Transformer with iron core air passage

Info

Publication number: CN211016703U
Application number: CN201922062535.2U
Authority: CN
Inventors: 倪国仙; 戚文华; 陈杰; 徐坚理; 王刚
Original assignee: Hangzhou Qiantang River Electric Group Co Ltd
Current assignee: Hangzhou Qiantang River Electric Group Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-14
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to a transformer of air flue unshakable in one's determination, affiliated transformer technical field, including the transformer box, transformer box lower extreme is equipped with the transformer base, and transformer box upper end is equipped with the case lid, is equipped with transformer core subassembly in the transformer box, and the case lid upper end is equipped with a plurality ofly to the full insulating sleeve of low pressure and the full insulating sleeve of high pressure with transformer core subassembly looks circuit intercommunication, and the full insulating sleeve of low pressure and transformer core subassembly are within a definite time, are equipped with the relay between high pressure full insulating sleeve and transformer core subassembly. The transformer iron core component comprises an iron core block, an upper iron yoke is arranged between the iron core block and the box cover, a lower iron yoke is arranged between the iron core block and the transformer base, windings extending out of two ends of the iron core block are arranged in the iron core block, and heat dissipation air channel frames are arranged at two ends of the iron core block. The heat dissipation structure has the characteristics of good air circulation performance, good heat dissipation effect and long service life. The problem of local overheating of the iron core is solved. The heat dissipation effect of the transformer is improved, and the operation condition of the transformer is improved.

Description

Transformer with iron core air passage

Technical Field

The utility model relates to a transformer technical field, concretely relates to transformer of air flue unshakable in one's determination in area.

Background

The air channel is not arranged in the iron core of the general dry-type transformer, heat generated by the iron core of the transformer can be dissipated into the air only through the outer surface when the transformer operates, and the heat inside the iron core is difficult to dissipate, so that the iron core is locally overheated, the overall heat dissipation effect of the iron core is poor, and the normal operation and the service life of the transformer are adversely affected.

Disclosure of Invention

The utility model discloses mainly solve and have among the prior art that the circulation of air performance is poor, the radiating effect is poor and life is short not enough, provide a transformer of air flue unshakable in one's determination, it has that circulation of air performance is good, the radiating effect is good and long service life's characteristics. The problem of local overheating of the iron core is solved. The heat dissipation effect of the transformer is improved, and the operation condition of the transformer is improved.

The above technical problem of the present invention can be solved by the following technical solutions:

the utility model provides a transformer of area air flue unshakable in one's determination, includes transformer box, transformer box lower extreme be equipped with the transformer base, transformer box upper end be equipped with the case lid, transformer box in be equipped with transformer core subassembly, case lid upper end be equipped with a plurality ofly to the full insulation support of low pressure and the full insulation support of high pressure with transformer core subassembly looks circuit intercommunication, the full insulation support of low pressure and transformer core subassembly between, the full insulation support of high pressure and transformer core subassembly between be equipped with the relay with transformer box looks screw-up. The transformer iron core component comprises an iron core block, an upper iron yoke is arranged between the iron core block and the box cover, a lower iron yoke is arranged between the iron core block and the transformer base, windings extending out of two ends of the iron core block are arranged in the iron core block, and heat dissipation air channel frames sleeved with the windings are arranged at two ends of the iron core block.

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

Preferably, the heat dissipation air flue frame comprises a plurality of groups of transition long air flue pipes which are arranged at equal intervals, a plurality of heat dissipation short air flue pipes which are arranged at equal intervals and communicated with the transition long air flue pipes are arranged at the upper end and the lower end of each transition long air flue pipe, and a plurality of silicon steel sheets are arranged between each heat dissipation short air flue pipe and the iron core block. The silicon steel sheet and the heat dissipation short air channel pipe are fixedly connected on the insulating clamping plate in an adhesive manner.

Preferably, the cross sections of the transition long air channel pipe and the heat dissipation short air channel pipe are both in a hollow square pipe structure, and the transition long air channel pipe and the heat dissipation short air channel pipe are made of aluminum alloy.

Preferably, a winding installation cavity sleeved with the winding at intervals is arranged between the transition long air flue pipes of the two adjacent groups.

Preferably, a framework is arranged between the winding and the iron core block.

Preferably, the upper end and the lower end of the heat dissipation air flue frame and the iron core block are respectively provided with an insulating clamping plate fastened with the iron core block through bolts.

Preferably, the two side edges of the transformer box body are provided with heat dissipation barrier side plates which are fixedly connected with the transformer box body in an inserted manner.

Preferably, the high-voltage all-insulation sleeve and the low-voltage all-insulation sleeve are distributed and arranged in a pairwise symmetrical mode.

The utility model discloses can reach following effect:

the utility model provides a transformer of air flue unshakable in one's determination, compare with prior art, have that circulation of air performance is good, the radiating effect is good and long service life's characteristics. The problem of local overheating of the iron core is solved. The heat dissipation effect of the transformer is improved, and the operation condition of the transformer is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a transformer core assembly according to the present invention.

Fig. 3 is a schematic structural diagram of the heat dissipation air duct frame of the present invention.

Fig. 4 is a schematic structural view of the transition long airway tube of the present invention.

Fig. 5 is a schematic cross-sectional view of a heat-dissipating short airway tube according to the present invention.

In the figure: the transformer comprises a transformer box body 1, a box cover 2, a low-voltage full-insulation sleeve 3, a high-voltage full-insulation sleeve 4, a relay 5, a heat dissipation barrier side plate 6, a transformer iron core assembly 7, a transformer base 8, a lower iron yoke 9, a framework 10, an upper iron yoke 11, an iron core block 12, an insulation clamping plate 13, a winding 14, a heat dissipation air channel frame 15, a transition long air channel pipe 16, a heat dissipation short air channel pipe 17, a silicon steel sheet 18 and a winding installation cavity 19.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1-5, a transformer with an air passage with an iron core comprises a transformer tank 1, and two side edges of the transformer tank 1 are provided with heat dissipation barrier side plates 6 which are fixedly connected with the transformer tank 1 in an inserting manner. The lower extreme of transformer box 1 is equipped with transformer base 8, and 1 upper end of transformer box is equipped with case lid 2, is equipped with transformer core subassembly 7 in the transformer box 1, and 2 upper ends of case lid are equipped with 3 full insulation support 3 of low pressure and the full insulation support 4 of high pressure to communicating with 7 looks circuits of transformer core subassembly, and the full insulation support 4 of high pressure is two bisymmetry formula distribution arrangement with the full insulation support 3 of low pressure. Relays 5 which are fastened with the transformer box body 1 through screws are arranged between the low-voltage full-insulation sleeve 3 and the transformer core assembly 7 and between the high-voltage full-insulation sleeve 4 and the transformer core assembly 7. The transformer iron core assembly 7 comprises an iron core block 12, an upper iron yoke 11 is arranged between the iron core block 12 and the box cover 2, a lower iron yoke 9 is arranged between the iron core block 12 and the transformer base 8, windings 14 extending two ends of the iron core block 12 are arranged in the iron core block 12, and a framework 10 is arranged between the windings 14 and the iron core block 12. The two ends of the core block 12 are provided with heat dissipation air channel frames 15 which are sleeved with the windings 14. The upper end and the lower end of the heat dissipation air flue frame 15 and the iron core block 12 are respectively provided with an insulating clamping plate 13 which is fastened with the iron core block 12 through bolts. The heat dissipation air channel frame 15 comprises 3 groups of 8 transition long air channel pipes 16 which are arranged at equal intervals, and a winding installation cavity 19 which is sleeved with the winding 14 at intervals is arranged between the transition long air channel pipes 16 of two adjacent groups. 42 heat dissipation short air duct pipes 17 which are arranged at equal intervals and communicated with the transition long air duct pipe 16 are arranged at the upper end and the lower end of the transition long air duct pipe 16, and 2 silicon steel sheets 18 are arranged between the heat dissipation short air duct pipes 17 and the iron core block 12. The cross sections of the transition long air passage pipe 16 and the heat dissipation short air passage pipe 17 are both in a hollow square pipe structure, and the transition long air passage pipe 16 and the heat dissipation short air passage pipe 17 are made of aluminum alloy.

In summary, the transformer with the core air passage has the characteristics of good air circulation performance, good heat dissipation effect and long service life. The problem of local overheating of the iron core is solved. The heat dissipation effect of the transformer is improved, and the operation condition of the transformer is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The utility model provides a transformer of area iron core air flue, includes transformer box (1), transformer box (1) lower extreme be equipped with transformer base (8), transformer box (1) upper end be equipped with case lid (2), its characterized in that: a transformer core assembly (7) is arranged in the transformer box body (1), a plurality of pairs of low-voltage full-insulation sleeves (3) and high-voltage full-insulation sleeves (4) which are communicated with the transformer core assembly (7) in a phase circuit are arranged at the upper end of the box cover (2), and relays (5) which are fastened with the transformer box body (1) through screws are arranged between the low-voltage full-insulation sleeves (3) and the transformer core assembly (7) and between the high-voltage full-insulation sleeves (4) and the transformer core assembly (7); the transformer iron core assembly (7) comprises an iron core block (12), an upper iron yoke (11) is arranged between the iron core block (12) and the box cover (2), a lower iron yoke (9) is arranged between the iron core block (12) and the transformer base (8), windings (14) extending two ends of the iron core block (12) are arranged in the iron core block (12), and heat dissipation air channel frames (15) sleeved with the windings (14) are arranged at two ends of the iron core block (12).

2. A transformer with core air ducts as claimed in claim 1, characterized in that: the heat dissipation air flue frame (15) include that a plurality of groups are equidistant transition long air flue pipe (16) of arranging, transition long air flue pipe (16) about both ends be equipped with a plurality of heat dissipation short air flue pipes (17) that are equidistant range and are linked together with transition long air flue pipe (16), heat dissipation short air flue pipe (17) and iron core piece (12) between be equipped with a plurality of silicon steel sheets (18).

3. A transformer with core air ducts as claimed in claim 2, characterized in that: the long air duct pipe of transition (16), the short air duct pipe of heat dissipation (17) cross section all be hollow square tubular structure, the long air duct pipe of transition (16), the material of the short air duct pipe of heat dissipation (17) be the aluminum alloy.

4. A transformer with core air ducts as claimed in claim 2, characterized in that: a winding installation cavity (19) which is sleeved with the winding (14) at intervals is arranged between the two adjacent groups of the transition long air channel pipes (16).

5. A transformer with core air ducts as claimed in claim 1, characterized in that: a framework (10) is arranged between the winding (14) and the iron core block (12).

6. A transformer with core air ducts as claimed in claim 1, characterized in that: and the upper end and the lower end of the heat dissipation air flue frame (15) and the iron core block (12) are respectively provided with an insulating clamping plate (13) which is fastened with the iron core block (12) through bolts.

7. A transformer with core air ducts as claimed in claim 1, characterized in that: and the two side edges of the transformer box body (1) are provided with heat dissipation barrier side plates (6) which are fixedly connected with the transformer box body (1) in an inserting manner.

8. A transformer with core air ducts as claimed in claim 1, characterized in that: the high-voltage full-insulation sleeve (4) and the low-voltage full-insulation sleeve (3) are distributed and arranged in a pairwise symmetrical mode.