CN203085322U - Water-cooling high-power high-frequency power transformer - Google Patents

Water-cooling high-power high-frequency power transformer Download PDF

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Publication number
CN203085322U
CN203085322U CN 201220591247 CN201220591247U CN203085322U CN 203085322 U CN203085322 U CN 203085322U CN 201220591247 CN201220591247 CN 201220591247 CN 201220591247 U CN201220591247 U CN 201220591247U CN 203085322 U CN203085322 U CN 203085322U
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CN
China
Prior art keywords
transformer
copper pipe
font
magnetic core
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220591247
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Chinese (zh)
Inventor
杜贵平
何正东
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South China University of Technology SCUT
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South China University of Technology SCUT
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Filing date
Publication date
Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Priority to CN 201220591247 priority Critical patent/CN203085322U/en
Application granted granted Critical
Publication of CN203085322U publication Critical patent/CN203085322U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a water-cooling high-power high-frequency power transformer. The power transformer comprises an annular transformer magnet core, a transformer primary winding, a first U-shaped copper pipe and a second U-shaped copper pipe. Multi-strand enameled wires uniformly wind the annular transformer magnet core so as to form the transformer primary winding. One end of the first U-shaped copper pipe and one end of the second U-shaped copper pipe pass through the annular transformer magnet core so as to form a transformer secondary winding together. When the transformer works, the two copper pipes are cooled by water. The transformer of the utility model possesses the advantages that the structure is compact and concise; a heat dissipation effect is good; copper materials are saved and so on. The transformer can be applied in the water-cooling high-power high-frequency switch power supply field.

Description

A kind of water-cooled high-power high-frequency power transformer
Technical field
The utility model relates to a kind of high power DC Switching Power Supply of exporting low-voltage, high-current, is specifically related to a kind of water-cooled high-power high-frequency power transformer structure.
Background technology
At present, the transformer secondary output rectification circuit of low-voltage, high-current high frequency switch power adopts full-wave rectifying circuit mostly ,High-frequency power transformer forms transformer secondary winding with the centre tap form, and transformer secondary winding generally is made of copper bar or lead, but because big by electric current, frequency is high, be subjected to influence such as kelvin effect, makes that the effective conductive area of transformer secondary winding bonding conductor diminishes, resistance increases, heating is serious.Simultaneously because high-frequency power transformer toroidal core circular hole has limited the increase of secondary winding conductor sectional area, make by increasing secondary winding sectional area and reduce heating and be restricted.All there is line in the transformer secondary winding that copper bar or lead constitute, and length, complex structure, technological requirement height, installation difficulty are big, shortcomings such as the transformer heat radiation is undesirable, cause high-frequency power transformer and secondary winding temperature rise height thereof, space availability ratio low, reduced the reliability of complete machine simultaneously.
The utility model content
The utility model purpose is providing a kind of good cooling results, compact conformation, simple, the connection water-cooled high-power high-frequency power transformer structure that resistance is little, the phase mutual interference is little.
The purpose of this utility model can realize by the following technical solutions: a kind of water-cooled high-power high-frequency power transformer structure, and it comprises toroidal transformer magnetic core, the former limit of transformer winding, a U font copper pipe, the 2nd U font copper pipe; The former limit of described transformer winding evenly is around on the toroidal transformer magnetic core by the multiply enamelled wire and constitutes; The one U font copper pipe and the 2nd U font copper pipe respectively have an end to pass the toroidal transformer magnetic core, constitute transformer secondary winding jointly, and during transformer work, cooling water flows through two U font copper pipes copper pipe is cooled off.
A described U font copper pipe and the 2nd U font copper pipe curve the U font with a hollow copper tubing respectively, and the outside bending of an end that a U font copper pipe passes the toroidal transformer magnetic core is connected with the end that the 2nd U font copper pipe does not pass the toroidal transformer magnetic core, and the end that the 2nd U font copper pipe does not pass the toroidal transformer magnetic core bends inwards.
An end that does not pass the toroidal transformer magnetic core of a described U font copper pipe is used to connect the anode of one group of common cathode rectifier diode module of the full-wave rectifying circuit of transformer secondary output, and the other end is used to connect the negative terminal of the full-wave rectifying circuit of transformer secondary output; The end that the 2nd U font copper pipe passes the toroidal transformer magnetic core is used to connect the anode of another group common cathode rectifier diode module of the full-wave rectifying circuit of transformer secondary output, and the other end is used to connect the negative terminal of the full-wave rectifying circuit of transformer secondary output.
Two groups of common cathode rectifier diode modules of the full-wave rectifying circuit of described transformer secondary output all comprise a plurality of rectifier diode modules.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts two copper pipes to curve two approximate U fonts, two copper pipes respectively have an end to pass the toroidal transformer magnetic core, the common scheme that constitutes transformer secondary winding, well solved transformer secondary winding heat dissipation problem, because adopt transformer secondary winding that copper bar or lead constitute with air cooling or natural cooling, radiating effect is undesirable, and the utility model constitutes transformer secondary winding employing water cooling with two copper pipes, its radiating effect is fine, the copper pipe temperature is only high 1 ℃-5 ℃ than cooling water, and adopt two U font copper pipes to pass the toroidal transformer magnetic core and constitute transformer secondary winding, make whole high-frequency power transformer structure very compact, succinctly, good heat dissipation effect, and saved a large amount of copper materials, had very high reliability and good economic benefits.
Description of drawings
Fig. 1 is the water-cooled high-power high-frequency power transformer structural representation of execution mode;
Fig. 2 is a U font copper pipe structural representation among Fig. 1;
Fig. 3 is the 2nd a U font copper pipe structural representation among Fig. 1.
Among the figure: 1. toroidal transformer magnetic core, the 2. former limit of transformer winding, 3. a U font copper pipe, 4. the 2nd U font copper pipe.
Embodiment
Below in conjunction with accompanying drawing and concrete enforcement, the utility model further is described in detail.
As shown in Figure 1, a kind of water-cooled high-power high-frequency power transformer structure is characterized in that comprising toroidal transformer magnetic core 1, the former limit of transformer winding 2, a U font copper pipe 3, the 2nd U font copper pipe 4; The former limit of described transformer winding 2 evenly is around on the toroidal transformer magnetic core 1 by the multiply enamelled wire and constitutes; The one U font copper pipe 3 and the 2nd U font copper pipe 4 respectively have an end to pass toroidal transformer magnetic core 1, constitute transformer secondary winding jointly, and during transformer work, cooling water flows through 3,4 pairs of copper pipes of two U font copper pipes and cools off.
A described U font copper pipe 3 and the 2nd U font copper pipe 4 curve the U font with a hollow copper tubing respectively, and the end that a U font copper pipe 3 passes toroidal transformer magnetic core 1 outwards bends (as shown in Figure 2) and is connected with the end that the 2nd U font copper pipe 4 does not pass toroidal transformer magnetic core 1, and the end that the 2nd U font copper pipe 4 does not pass toroidal transformer magnetic core 1 bends inwards (as shown in Figure 3).
As preferably, the water-cooled high-power high-frequency power transformer of said structure can be used for the secondary full-wave rectifying circuit of water-cooling type high-power high-frequency switch power transformer, that is: an end that does not pass toroidal transformer magnetic core 1 of a described U font copper pipe 3 is used to connect the anode of one group of common cathode rectifier diode module of the full-wave rectifying circuit of transformer secondary output, and the other end is used to connect the negative terminal of the full-wave rectifying circuit of transformer secondary output; The end that the 2nd U font copper pipe 4 passes toroidal transformer magnetic core 1 is used to connect the anode of another group common cathode rectifier diode module of the full-wave rectifying circuit of transformer secondary output, and the other end is used to connect the negative terminal of the full-wave rectifying circuit of transformer secondary output.Because U font copper pipe sectional area is bigger, can bear the big electric current of high frequency switch power, cooling water flows through two U font copper pipes during transformer work simultaneously, and copper pipe is played effective cooling effect, has improved the reliability of high frequency switch power.Two groups of common cathode rectifier diode modules of the full-wave rectifying circuit of described transformer secondary output all comprise a plurality of rectifier diode modules.
The utility model constitutes transformer secondary winding with two copper pipes and adopts water cooling, its radiating effect is fine, the copper pipe temperature is only high 1 ℃-5 ℃ than cooling water, and adopt two U font copper pipes to pass the toroidal transformer magnetic core and constitute transformer secondary winding, make whole high-frequency power transformer structure very compact, succinct, good heat dissipation effect, and a large amount of copper materials have been saved, have very high reliability and good economic benefits, be particularly suitable for being applied in above the high-power high-frequency switch power supply of low-voltage, high-current.
Specific embodiment described herein only is specifying the utility model spirit; those skilled in the art can make various modifications to this specific embodiment or replenish or adopt similar mode to substitute under the prerequisite of principle of the present utility model and essence, but these are changed and all fall into protection range of the present utility model.Therefore the utility model technical scope is not limited to the foregoing description.

Claims (4)

1. a water-cooled high-power high-frequency power transformer is characterized in that comprising toroidal transformer magnetic core, the former limit of transformer winding, a U font copper pipe, the 2nd U font copper pipe; The former limit of described transformer winding evenly is around on the toroidal transformer magnetic core by the multiply enamelled wire and constitutes; The one U font copper pipe and the 2nd U font copper pipe respectively have an end to pass the toroidal transformer magnetic core, constitute transformer secondary winding jointly, and during transformer work, cooling water flows through two U font copper pipes copper pipe is cooled off.
2. water-cooled high-power high-frequency power transformer according to claim 1, it is characterized in that a described U font copper pipe and the 2nd U font copper pipe curve the U font with a hollow copper tubing respectively, and the outside bending of an end that a U font copper pipe passes the toroidal transformer magnetic core is connected with the end that the 2nd U font copper pipe does not pass the toroidal transformer magnetic core, and the end that the 2nd U font copper pipe does not pass the toroidal transformer magnetic core bends inwards.
3. water-cooled high-power high-frequency power transformer according to claim 1, an end that does not pass the toroidal transformer magnetic core that it is characterized in that a described U font copper pipe is used to connect the anode of one group of common cathode rectifier diode module of the full-wave rectifying circuit of transformer secondary output, and the other end is used to connect the negative terminal of the full-wave rectifying circuit of transformer secondary output; The end that the 2nd U font copper pipe passes the toroidal transformer magnetic core is used to connect the anode of another group common cathode rectifier diode module of the full-wave rectifying circuit of transformer secondary output, and the other end is used to connect the negative terminal of the full-wave rectifying circuit of transformer secondary output.
4. water-cooled high-power high-frequency power transformer according to claim 3 is characterized in that two groups of common cathode rectifier diode modules of the full-wave rectifying circuit of described transformer secondary output all comprise a plurality of rectifier diode modules.
CN 201220591247 2012-11-12 2012-11-12 Water-cooling high-power high-frequency power transformer Expired - Fee Related CN203085322U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220591247 CN203085322U (en) 2012-11-12 2012-11-12 Water-cooling high-power high-frequency power transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220591247 CN203085322U (en) 2012-11-12 2012-11-12 Water-cooling high-power high-frequency power transformer

Publications (1)

Publication Number Publication Date
CN203085322U true CN203085322U (en) 2013-07-24

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CN 201220591247 Expired - Fee Related CN203085322U (en) 2012-11-12 2012-11-12 Water-cooling high-power high-frequency power transformer

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102956343A (en) * 2012-11-12 2013-03-06 华南理工大学 Water-cooled high-power high-frequency power transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102956343A (en) * 2012-11-12 2013-03-06 华南理工大学 Water-cooled high-power high-frequency power transformer

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130724

Termination date: 20171112

CF01 Termination of patent right due to non-payment of annual fee