CN103165265A - High-frequency water-cooling transformer based on aluminum profile heat dissipater - Google Patents
High-frequency water-cooling transformer based on aluminum profile heat dissipater Download PDFInfo
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- CN103165265A CN103165265A CN2011104106251A CN201110410625A CN103165265A CN 103165265 A CN103165265 A CN 103165265A CN 2011104106251 A CN2011104106251 A CN 2011104106251A CN 201110410625 A CN201110410625 A CN 201110410625A CN 103165265 A CN103165265 A CN 103165265A
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Abstract
The invention discloses a high-frequency water-cooling transformer based on an aluminum profile heat dissipater. A magnetic core of the transformer is made of ultracrystallite soft magnetic materials and is in an annular shape. A transformer secondary coil is composed of a concave copper sleeve also serving as a protective sleeve of the transformer. After insulation treatment to the secondary coil, a primary high-voltage winding is directly wound on the secondary copper sleeve, and therefore the coupling degree of a transformer primary coil and the secondary coil is effectively enhanced. A leading-out end of a secondary winding of the transformer and a leading-out end of a center tap are welded on three conflux plates on one side of the magnetic core through a plurality of copper bars. Gaps are arranged among the conflux plates. The conflux plate closest to the one side of the magnetic core is a center tap of the transformer secondary coil so that heat dissipating effects of the transformer are improved and stress born by the magnetic core of the transformer is lowered. The center tap of the secondary winding of the transformer is converged and fixed on the aluminum profile heat dissipater through a fastening method with screws, and encapsulation treatment is carried out on seams between the magnetic core of the transformer and the heat dissipater through electronic pouring sealant with high thermal conductive performance and high insulating performance.
Description
Technical field
The present invention relates to a kind of high-frequency water-cooling transformer, particularly a kind of magnetic core adopts super-micro crystallite soft magnetic material, based on the high-frequency water-cooling transformer of aluminum profile heat radiator.
Background technology
Along with the development of power electronic technology, Switching Power Supply is used widely in the every field such as industry with advantages such as its high efficiency, High Power Factor, small sizes.
In the design of high frequency switch power, the design of high frequency transformer is very crucial, and the quality of its performance will directly affect the overall performance of high frequency switch power, and its importance is self-evident.
In order to give full play to the advantage that switch power efficiency is high, the complete machine power density is high, just must reduce high frequency transformer loss, improve switching frequency and reduce the volume of high frequency transformer, this has just proposed new challenge to high frequency transformer in the selection of core material and the design of heat radiation etc.; In addition, along with the reduction of high frequency transformer secondary voltage, the increase of electric current, more and more harsher to the requirement of radiating effect, the radiating mode of traditional employing forced air cooling can not practical requirement.
Summary of the invention
The object of the invention is to: adopt super-micro crystallite soft magnetic material as the magnetic core of high frequency transformer, the magnetic core of transformer and the centre cap of secondary winding are adopted the aluminium section bar water cooling method, thereby reduce the temperature rise of high frequency transformer, improve the performance of high frequency transformer when reducing the high frequency transformer volume.
In order to achieve the above object, technical scheme of the present invention is as follows:
Low-voltage, high-current water-cooled aluminum hull transformer is comprised of super-micro crystallite soft magnetic material magnetic core, high pressure winding, low pressure winding, cylinder manifold, insulating sleeve, aluminum profile heat radiator etc., it is characterized in that:
1, adopt annular super-micro crystallite soft magnetic material as the magnetic core of transformer, the low pressure winding is the double U-shaped copper sheathing of making the transformer sheath, two secondary low-voltage winding exits of transformer and secondary centre tap exit are positioned at the same side of transformer, and the secondary low-voltage winding exit of three transformers is welded on respectively on three cylinder manifolds; Wherein the cylinder manifold of close magnetic core is the centre cap of secondary low-voltage winding, and this cylinder manifold directly is connected with aluminum profile heat radiator by the screw fastening mode; Other two cylinder manifolds support fixing by the glass filament plate, realize simultaneously being isolated from each other between three cylinder manifolds.
2, the aluminum profile heat radiator profile is square, and a looping pit is drawn in inside, and the diameter in this hole is as the criterion with the magnetic core of transformer that can put down after complete primary and secondary winding; Be to strengthen the radiating effect of transformer, radiator inside has two to advance two water channels of scene 2, is distributed in respectively four jiaos and bottom of square aluminum Section Bar Heat Sinks.
3, the centre cap cylinder manifold with transformer is fixed on aluminum profile heat radiator by the screw fastening mode, in this way at first can be directly the secondary winding of transformer be dispelled the heat, the large heating of the secondary current of transformer is more severe, and this mode can improve the radiating effect of transformer greatly; Secondly, in this way, magnetic core of transformer can be fixed on radiator, the stress when reducing the transformer installation prevents the damage of transformer.
4, for strengthening the radiating effect of transformer, after being fixed on magnetic core of transformer on aluminum profile heat radiator, adopting the electron pouring sealant of high-termal conductivity, high electrical insulation properties to carry out embedding to the gap between magnetic core of transformer and aluminum profile heat radiator processes, can greatly reduce the temperature rise of transformer like this, improve the reliability of transformer.
5, two exits that cylinder manifold is transformer secondary winding in the aluminum hull transformer outside are also that the output of transformer connects row, and this connection row can directly be crimped on output full-wave rectification diode; Draw the stressed burden of copper rod in order to alleviate the secondary winding, strengthen the intensity that transformer output connects row, support fixing between the end face of cylinder manifold and aluminum profile heat radiator by a glass filament plate.
The magnetic core of transformer adopts super-micro crystallite soft magnetic material, is shaped as annular; Transformer secondary output is comprised of the double matrix copper sheathing of making the sheath of transformer, to secondary finish insulation processing after, elementary high pressure winding directly on the secondary copper sheathing of transformer, can effectively be strengthened primary and secondary degree of coupling like this; The secondary winding exit of transformer and centre cap exit are welded on three cylinder manifolds of magnetic core one side by some copper rods, and a fixed gap is all arranged between cylinder manifold; The cylinder manifold of the most close magnetic core one side is the centre cap of transformer secondary output, for the radiating effect that improves transformer and reduce the stress that magnetic core of transformer bears, the centre cap bus-bar of transformer secondary winding is drawn by the screw fastening mode be fixed on aluminum profile heat radiator, and adopt the electron pouring sealant of high heat conduction, high insulating property to carry out embedding to the place, gap of magnetic core of transformer and radiator and process.
Owing to adopting above-mentioned technology, compared with the prior art the present invention has the following advantages:
1, not only magnetic permeability is high, coercive force is low, iron loss is little for the super-micro crystallite soft magnetic material magnetic core, and saturation induction density is high, good stability, so have advantages of that with the high frequency transformer of this Magnetic Core Design loss is little, efficient is high, volume is little.
2, transformer adopting aluminium section bar water-cooling pattern directly dispels the heat to the pyrotoxin magnetic core; Aluminum profile heat radiator density is little, and quality is light, heat conduction, conducts electricity very well, corrosion resistance is strong, and inside has two to advance two water channels of scene 2 simultaneously, is distributed in respectively four jiaos and bottom of square aluminum Section Bar Heat Sinks, can reduce the temperature rise of transformer, alleviate the weight of transformer, improve transformer performance.
3, the centre cap cylinder manifold of transformer is fixed on aluminum profile heat radiator by the screw fastening mode, can be directly the secondary winding of transformer be dispelled the heat, and effectively reduces the temperature rise of transformer secondary output winding, greatly improves the radiating effect of transformer.
4, the double output of making transformer of transformer secondary output winding cylinder manifold connects row, makes the structure of transformer compacter, and volume is less, and weight is lighter; Support by the glass filament plate between cylinder manifold simultaneously, the stress when reducing the transformer installation prevents the damage of transformer; Output connects row and can directly be crimped on the secondary rectifier diode, makes transformer and being connected of secondary rectifier diode convenient, reliable.
5, transformation is simple and compact for structure, easy to assembly, produces in batches very convenient.
Description of drawings
Fig. 1 is the structure chart of transformer
Fig. 2 is the front view of transformer
Fig. 3 is the vertical view of transformer
Fig. 4 is the structure chart of aluminum profile heat radiator
Fig. 5 is the front view of aluminum profile heat radiator
Fig. 6 is the right view of aluminum profile heat radiator.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
Low-voltage high-current high frequency water-cooled aluminium section bar transformer of the present invention is comprised of super-micro crystallite soft magnetic material magnetic core, high pressure winding, low pressure winding, cylinder manifold, insulating sleeve, aluminum profile heat radiator etc., and its structure as shown in Figure 1.Fig. 2 is its front view, and Fig. 3 is its vertical view.
As shown in Fig. 2,3, the ultracrystallite magnetic core (2) of transformer stands up, one side of magnetic core is connecting three cylinder manifolds, it is the centre cap exit of transformer secondary winding apart from the nearest cylinder manifold of magnetic core (7), this cylinder manifold is fixed on aluminum profile heat radiator by the screw fastening mode, and and magnetic core between certain space is arranged; Another two cylinder manifolds (4,5) are the exit of transformer secondary winding, between two cylinder manifolds, certain space are arranged, and respectively support fixing by a glass filament plate (3,6).
Magnetic core of transformer (2) is fixed in (1) in aluminum profile heat radiator by electron pouring sealant, and the structure of aluminum profile heat radiator as shown in Figure 4.Aluminum profile heat radiator inside has two to advance two water channels of scene 2, is distributed in respectively four jiaos (as shown in Figure 6) and the bottom (as shown in Figure 5) of square aluminum Section Bar Heat Sinks, reaches the effect of directly magnetic core being dispelled the heat.Water channel by aluminum hull inside between the water fittings of aluminum profile heat radiator (8) is connected to each other; Be increasing heat radiation area, the centre cap exit (7) of transformer secondary winding also is fixed in the end face of aluminum hull radiator (1).Adopt this aluminium section bar water cooling method, can greatly improve the radiating effect of transformer, increasing heat radiation area reduces the temperature rise of transformer, reduces the volume of transformer, improves the performance of transformer.
Cylinder manifold is drawn and be soldered to the secondary winding of transformation and secondary centre tap by some copper rods (2), the two ends of these copper rods are connected with secondary centre cap exit cylinder manifold with the transformer secondary exit cylinder manifold of magnetic core both sides respectively, are welded on respectively on three cylinder manifolds.
Coiling high pressure winding outside the insulating sleeve of magnetic core of transformer, directly draw the exit of winding, high-tension winding evenly distributes between each copper rod of low pressure winding (2), and high pressure winding and low pressure winding coupled are tight, greatly reduce leakage field, reduced the loss of transformer.
Connect row away from the double output of making transformer of two cylinder manifolds (4,5) of magnetic core one side, make the structure of transformer compacter, volume is less, and weight is lighter; Output simultaneously connects row and can directly be crimped on the secondary rectifier diode, makes transformer and being connected of secondary rectifier diode convenient, reliable.This transformer simple in structure, easy to assembly is convenient to batch production.
Claims (5)
1. low-voltage, high-current water-cooled aluminum hull transformer is comprised of super-micro crystallite soft magnetic material magnetic core, high pressure winding, low pressure winding, cylinder manifold, insulating sleeve, aluminum profile heat radiator etc., it is characterized in that:
Adopt annular super-micro crystallite soft magnetic material as the magnetic core of transformer, the low pressure winding is the double U-shaped copper sheathing of making the transformer sheath, and three secondary winding lead to transformer one side; Adopt aluminum profile heat radiator directly transformer to be dispelled the heat, aluminum profile heat radiator adopts water-cooling pattern; The centre cap of transformer is fixed on aluminum profile heat radiator by the screw fastening mode, realizes the direct heat radiation to secondary winding; Adopting the electron pouring sealant of high-termal conductivity, high electrical insulation properties to carry out embedding to the gap between magnetic core of transformer and aluminum profile heat radiator processes.
2. transformer according to claim 1 is characterized in that: the magnetic core of transformer adopts annular super-micro crystallite soft magnetic material; The elementary high pressure winding of transformer is directly outside the insulating sleeve of magnetic core; The secondary winding of transformer is welded by the spill copper sheathing, and the secondary winding exit is welded on magnetic core of transformer one side three cylinder manifolds at regular intervals by some copper rods; The aluminum profile heat radiator profile is square or circular, and a looping pit is drawn in inside, and the diameter in this hole is as the criterion with the magnetic core of transformer size that can put down after complete primary and secondary winding; Four jiaos of radiator and bottom even divide water distribution channel.
3. transformer according to right 1 is characterized in that: the cylinder manifold outside the aluminium section bar transformer is the exit of transformer secondary winding, the output that is also transformer connects row, this connection row can be crimped on output secondary commutation diode, and the material of cylinder manifold is the metal material of the high conduction performances such as copper or aluminium.
4. transformer according to right 1 is characterised in that: the secondary centre tap cylinder manifold of transformer directly is fixed on aluminum profile heat radiator by screw fastening or welding manner; And the space between magnetic core and aluminum profile heat radiator is adopted the electron pouring sealant embedding of high heat conduction, high insulating property.
5. transformer according to right 1 is characterised in that: water-filled radiator material used is the metal material that aluminium or copper etc. have high thermal conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104106251A CN103165265A (en) | 2011-12-12 | 2011-12-12 | High-frequency water-cooling transformer based on aluminum profile heat dissipater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104106251A CN103165265A (en) | 2011-12-12 | 2011-12-12 | High-frequency water-cooling transformer based on aluminum profile heat dissipater |
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| CN103165265A true CN103165265A (en) | 2013-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593840A (en) * | 2021-06-28 | 2021-11-02 | 南京南瑞继保工程技术有限公司 | High-frequency transformer with built-in cold plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0629130A (en) * | 1992-07-13 | 1994-02-04 | Toshiba Corp | Transformer |
| CN201229829Y (en) * | 2008-06-18 | 2009-04-29 | 张宝魁 | Aluminum channel type transformer water-cooling heat radiating system |
| CN101430960A (en) * | 2008-08-28 | 2009-05-13 | 张宝魁 | Transformer component for high-frequency water-cooling electric plating power source |
| CN201514838U (en) * | 2009-09-24 | 2010-06-23 | 成都汇能高科电器有限公司 | High-frequency power transformer component |
| CN201638633U (en) * | 2010-01-08 | 2010-11-17 | 北京京仪椿树整流器有限责任公司 | Low-voltage high-current high frequency water-cooled transformer |
-
2011
- 2011-12-12 CN CN2011104106251A patent/CN103165265A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0629130A (en) * | 1992-07-13 | 1994-02-04 | Toshiba Corp | Transformer |
| CN201229829Y (en) * | 2008-06-18 | 2009-04-29 | 张宝魁 | Aluminum channel type transformer water-cooling heat radiating system |
| CN101430960A (en) * | 2008-08-28 | 2009-05-13 | 张宝魁 | Transformer component for high-frequency water-cooling electric plating power source |
| CN201514838U (en) * | 2009-09-24 | 2010-06-23 | 成都汇能高科电器有限公司 | High-frequency power transformer component |
| CN201638633U (en) * | 2010-01-08 | 2010-11-17 | 北京京仪椿树整流器有限责任公司 | Low-voltage high-current high frequency water-cooled transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593840A (en) * | 2021-06-28 | 2021-11-02 | 南京南瑞继保工程技术有限公司 | High-frequency transformer with built-in cold plate |
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Application publication date: 20130619 |