CN102751077A

CN102751077A - Transformer

Info

Publication number: CN102751077A
Application number: CN2012100002012A
Authority: CN
Inventors: 李紫薇
Original assignee: WUJIANG DONGTAI ELECTRIC POWER SPECIAL SWITCH CO Ltd
Current assignee: WUJIANG DONGTAI ELECTRIC POWER SPECIAL SWITCH CO Ltd
Priority date: 2012-01-04
Filing date: 2012-01-04
Publication date: 2012-10-24

Abstract

The invention provides a transformer which comprises a shell, an iron core and a coil winding. The coil winding is arranged on the iron core, a combination structure of the iron core and the coil winding is arranged in the shell, heat conduction pipes which are vertically arranged are uniformly distributed on an external facade of the shell, the upper and lower ends of each heat conduction pipe penetrate through oil holes which are arranged on the upper and lower portions of the shell to be connected with the interior of the shell, heat conduction ceramic pipes are arranged on each pair of corresponding oil holes located on the upper and lower portions of the shell, and the interior of the shell is filled with transformer oil. The transformer has the advantages that a circulation of the transformer oil in radiating pipes on the exterior of a radiator can be enhanced, and the heat dissipation capability of the transformer can be improved.

Description

A kind of transformer

Technical field

[0001] the present invention relates to the potential device field, especially, is a kind of transformer of perfect heat-dissipating.

Background technology

[0002] transformer is to utilize the principle of electromagnetic induction to change the device of alternating voltage, and main member is primary coil, secondary coil and iron core (magnetic core).In electric equipment and radio-circuit, up-down voltage, the matched impedance done commonly used, safety isolation etc.In generator, no matter be that coil movement is passed through magnetic field or Movement in Magnetic Field through fixed coil, all can be in coil induced potential, these two kinds of situation, the value of magnetic flux is all constant, but with the magnetic flux quantity of coil intersecting chain change is arranged, this is the principle of mutual induction.Transformer is exactly that a kind of undesirable mutual electromagnetic inductance of utilizing is answered voltage of transformation, the device of electric current and impedance.The function of transformer mainly contains: voltage transformation; Current transformation, impedance conversion; Isolate; Voltage stabilizing (magnetic saturation transformer) etc.

Produce loss during the transformer electric energy transmitting always, this loss mainly contains copper loss and iron loss, and copper loss and iron loss all can produce a large amount of heats; General civilian transformer all is employed in the inner perfusion of transformer transformer oil and takes away this part heat, and this part heat is circulated in the outside heat pipe of transformer case through conduction oil and dispels the heat, in summer during peak of power consumption; The transformer temperature sharply raises, and too high temperature makes the transformer internal resistance raise again, further aggravation heating; Make transformer work become unstable relatively, therefore heat radiation is a big key element of transformer steady operation, inserts several radiating tube passages on the shell vertical direction of common transformer; In transformer work (like Fig. 1), iron core and heating in winding have heated transformer oil, and transformer oil rises and gets into radiating tube; Sink to getting into the transformer bottom through the cooled transformer oil of radiating tube; Form circulation with this, but in fact transformer oil is in main casing, circulate (like Fig. 2), the oil that gets into radiating tube is after being sunk by the cold oil in the radiating tube; The fraction oil that sucks from the radiating tube top, so the circulation of the transformer oil in the radiating tube is slowly.

Summary of the invention

In order to address the above problem, the object of the present invention is to provide a kind of transformer, this transformer can strengthen the circulation of the transformer oil in the outside radiating tube of radiator, strengthens the heat-sinking capability of transformer.

The technical solution adopted for the present invention to solve the technical problems is:

This transformer comprises housing, iron core and coil windings; Said coil windings is arranged on the iron core, and said iron core and coil windings combining structure are arranged on said enclosure interior, is evenly equipped with vertically disposed heat pipe on the outer facade of said housing; The oilhole that is arranged on said housing top and the bottom is passed at the two ends up and down of said heat pipe; Connect said enclosure interior, said every pair is positioned at the corresponding oilhole in said housing top and the bottom and is provided with the thermal conductive ceramic pipe, and said enclosure interior is full of transformer oil.

As preferably, said thermal conductive ceramic pipe is identical with the inside caliber cross section of said heat pipe, the bar when effectively reducing circulation.

As preferably, said thermal conductive ceramic pipe is provided with heat exchange wall, and said heat exchange wall is arranged on the iron core.

As preferably, said thermal conductive ceramic pipe is alumina tube or beryllium oxide pipe.

The invention has the advantages that:

In the transformer work; Iron core and heating in winding have heated transformer oil; The transformer oil of heating makes the transformer oil rising in the thermal conductive ceramic pipe get into radiating tube simultaneously, and cooled transformer oil sinking gets into the bottom of thermal conductive ceramic pipe through radiating tube, forms the cycle heat radiation passage of stability and high efficiency with this; Radiating rate more originally improves a lot, and makes transformer work keep stable.

Description of drawings

Fig. 1 is common transformer transformer oil Ideal Cycle figure;

Fig. 2 is common transformer transformer oil actual cycle figure;

Fig. 3 is the planform sketch map of an embodiment of a kind of transformer of the present invention;

Fig. 4 is the transformer oil circulating path figure in Fig. 3 transformer.

Among the figure: 1, housing; 2, iron core; 3, coil windings; 4, heat pipe; 5, alumina ceramic tube; 51, heat exchange wall.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further specified:

Shown in Figure 1 is the planform sketch map of an embodiment of this transformer.

In the present embodiment; This transformer comprises housing 1, iron core 2 and coil windings 3; Said coil windings 3 is arranged on the iron core 2, and said iron core 2 and coil windings 3 combining structures are arranged on said enclosure interior 1, is evenly equipped with vertically disposed heat pipe 4 on the said housing 1 outer facade; The oilhole that is arranged on said housing 1 top and the bottom is passed at the two ends up and down of said heat pipe 4; Connect said housing 1 inside, said every pair is positioned at the corresponding oilhole in said housing 1 top and the bottom and is provided with alumina ceramic tube 5, and said housing 1 inside is full of transformer oil.

Above-mentioned transformer, said alumina ceramic tube 5 is identical with the inside caliber cross section of said heat pipe 4, the bar when effectively reducing circulation.

Above-mentioned transformer; Said alumina ceramic tube 5 is provided with heat exchange wall 51; Said heat exchange wall 51 is arranged on the iron core 2, and iron core 2 coolings can be taken away the coil windings 3 of contact iron core 2 and the heat of conduction oil, and the heat that alumina ceramic tube 5 is taken away is more.

Like Fig. 4 is the transformer oil circulating path figure in the above-mentioned transformer.

Said iron core and heating in winding have heated transformer oil; The transformer oil of heating and iron core make the transformer oil rising in the thermal conductive ceramic pipe get into radiating tube simultaneously; Cooled transformer oil sinking gets into the bottom of thermal conductive ceramic pipe through radiating tube, forms the cycle heat radiation passage of stability and high efficiency with this

The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. transformer; Comprise housing (1), iron core (2) and coil windings (3); Said coil windings (3) is arranged on the iron core (2), and said iron core (2) and coil windings (3) combining structure are arranged on said enclosure interior (1), are evenly equipped with vertically disposed heat pipe (4) on the outer facade of said housing (1); The oilhole that is arranged on said housing (1) top and the bottom is passed at the two ends up and down of said heat pipe (4); Connect said housing (1) inside, it is characterized in that: said every pair is positioned at the corresponding oilhole in said housing (1) top and the bottom and is provided with thermal conductive ceramic pipe (5), and said housing (1) inside is full of transformer oil.

2. transformer according to claim 1 is characterized in that: said thermal conductive ceramic pipe (5) is identical with the inside caliber cross section of said heat pipe (4).

3. transformer according to claim 1 is characterized in that: said thermal conductive ceramic pipe (5) is provided with heat exchange wall (51), and said heat exchange wall (51) is arranged on the iron core (2).

4. according to claim 1 or claim 2 or the described transformer of claim 3, it is characterized in that: said thermal conductive ceramic pipe (5) is alumina tube or beryllium oxide pipe.