CN103366933B - A kind of integral high frequency power transformer - Google Patents

A kind of integral high frequency power transformer Download PDF

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Publication number
CN103366933B
CN103366933B CN201310325959.8A CN201310325959A CN103366933B CN 103366933 B CN103366933 B CN 103366933B CN 201310325959 A CN201310325959 A CN 201310325959A CN 103366933 B CN103366933 B CN 103366933B
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pedestal
substrate
center pillar
magnetic core
window
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CN201310325959.8A
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CN103366933A (en
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杜贵平
何莉丹
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

The present invention discloses a kind of integral high frequency power transformer structure, comprises toroidal transformer magnetic core, transformer primary side winding, pedestal and substrate.Described transformer primary side winding is around on toroidal transformer magnetic core by multiply enamelled wire uniform ring and forms, and the toroidal transformer magnetic core being wound with former limit winding is positioned in the annular groove of pedestal; The substrate center pillar that substrate is provided with passes the pedestal window had in toroidal transformer magnetic core and pedestal, the substrate window that the pedestal center pillar be provided with in pedestal is provided with through toroidal transformer magnetic core and substrate; Substrate center pillar and pedestal center pillar form two windings of transformer secondary, and pedestal and substrate are electrically connected to form the centre tap of vice-side winding.Compact conformation of the present invention, simple, good heat dissipation effect, very easily realizes High-current output, can be applicable to the high-power high-frequency switch field of power supplies of air-cooled, water-cooled or oil cooling.

Description

A kind of integral high frequency power transformer
Technical field
The present invention relates to a kind of high-power high-frequency switch power supply being applied to industry, be specifically related to a kind of integral high frequency power transformer structure.
Background technology
At present, low-voltage, high-current high frequency switch power secondary commutation circuit adopts full-wave rectifying circuit mostly, but because high-frequency power transformer forms transformer secondary winding with centre tap form, and transformer secondary winding is generally made up of copper bar or wire, but due to large by electric current, frequency is high, be subject to the impacts such as kelvin effect, the effective conductive area of transformer secondary winding switching conductor is diminished, resistance increases, heating is serious, simultaneously because transformer toroidal core circular hole limits the sectional area of vice-side winding conductor, make to reduce heating by increase vice-side winding sectional area to be restricted.In addition, full-wave rectifying circuit needs two vice-side winding, when exporting high frequency big current, form two windings, complex structure, technological requirement are high, installation difficulty is large, and transformer heat radiation is undesirable, and magnetic core of transformer, former limit, secondary temperature are fallen apart and do not gone out, cause whole transformer temperature higher, whole aircraft reliability is low.
Summary of the invention
Technical problem to be solved by this invention, namely the object of the invention is open a kind of compact conformation, simply, good heat dissipation effect, easily realizes the integral high frequency power transformer structure of High-current output.
The present invention is for achieving the above object, and the technical scheme adopted is as follows: a kind of integral high frequency power transformer structure, comprises toroidal transformer magnetic core, transformer primary side winding, pedestal and substrate; Described transformer primary side winding is around on toroidal transformer magnetic core by multiply enamelled wire uniform ring and forms, and the transformer toroidal core being wound with former limit winding is positioned in the annular groove of pedestal; The substrate center pillar that substrate is provided with passes the pedestal window had in toroidal transformer magnetic core and pedestal, the substrate window that the pedestal center pillar be provided with in pedestal is provided with through toroidal transformer magnetic core and substrate; Substrate center pillar and pedestal center pillar form two windings of transformer secondary, and pedestal and substrate are electrically connected to form the centre tap of vice-side winding.
Described pedestal is cuboid conductor material, cuboid one side center has described annular groove, the mid portion of described annular groove is as described pedestal center pillar, this pedestal center pillar is along the remaining half of its center longitudinally cutting, extended to the another side of cuboid by the part of cutting always, and form described pedestal window at this another side; Described annular groove size is wound with the toroidal transformer magnetic core of former limit winding described in be able to putting into; Described substrate is an electric conducting material, the one side center of substrate is connected with substrate center pillar, this substrate center pillar is along the remaining half of its center longitudinally cutting, extended to the another side of substrate by the part of cutting always, and forming described substrate window at this another side, substrate center pillar is equal with the radius of pedestal center pillar.
The described toroidal transformer magnetic core being wound with former limit winding is positioned in the annular groove of pedestal, substrate center pillar is through the pedestal window bottom pedestal, pedestal center pillar is through the substrate window on substrate, be electrically connected between substrate with pedestal, but be not electrically connected between substrate center pillar with pedestal window, between pedestal center pillar with substrate window.
Described integral high frequency power transformer vice-side winding is a circle, as formed the power transformer of multiturn vice-side winding, then changes center pillar number.
Compared with prior art, the present invention has the following advantages and technique effect: the present invention adopts unitary conductive material to form transformer secondary winding, its conductive area than copper bar or wire conductive cross-sectional area much bigger, this structure can improve transformer radiating effect greatly, realize High-current output very simple, be particularly suitable for large-power occasions, and the type of cooling of forced air cooling, water-cooled or oil cooling can be made as required.Whole transformer device structure is simple, compact, succinct, good heat dissipation effect, has very high reliability.
Accompanying drawing explanation
Fig. 1 is the integral high frequency power transformer structural representation of execution mode;
Fig. 2 is base structure schematic diagram in Fig. 1;
Fig. 3 is board structure schematic diagram in Fig. 1;
Fig. 4 is the toroidal core schematic diagram with former limit winding in Fig. 1.
In figure: 1. pedestal, 2. annular groove, 3. pedestal center pillar, 4. pedestal window, 5. substrate, 6. substrate center pillar, 7. substrate window, 8. toroidal transformer magnetic core, 9. transformer primary side winding.
Embodiment
Below in conjunction with accompanying drawing and concrete enforcement, the present invention is further described in detail.
As shown in Figure 1, a kind of integral high frequency power transformer structure, it comprises pedestal 1, annular groove 2, pedestal center pillar 3, pedestal window 4, substrate 5, substrate center pillar 6, substrate window 7, toroidal transformer magnetic core 8, transformer primary side winding 9.Described transformer primary side winding 9 is around on toroidal transformer magnetic core 8 by multiply enamelled wire uniform ring and forms, and the toroidal core being wound with former limit winding is positioned in the annular groove 2 of pedestal; The substrate center pillar 5 that substrate is provided with is through the pedestal window 3 had in toroidal transformer magnetic core 7 and pedestal, and the pedestal center pillar 2 be provided with in pedestal is through the substrate window 7 that toroidal transformer magnetic core 7 and substrate have; Substrate center pillar 6 and pedestal center pillar 3 form two windings of transformer secondary, and pedestal 1 and substrate 5 are electrically connected to form the centre tap of vice-side winding.
As shown in Figure 2, described pedestal 1 is cuboid conductor material, conductor material centre bit is equipped with an annular groove 2, this groove size be able to put the toroidal core 8 being wound with former limit winding 9 into, the mid portion of annular groove is a cylinder, using remaining for its center longitudinally cutting half as pedestal center pillar 3, extended to the another side of cuboid by the part of cutting always, and form a pedestal window 4 in this face.
As shown in Figure 3, described substrate is an electric conducting material, and its one side center is electrically connected with a cylinder, using remaining for its center longitudinally cutting half as substrate center pillar 6, extended to substrate another side by the part of cutting always, and form a substrate window 7 in this face.
As shown in Fig. 1 ~ 4, described substrate center pillar 6 enough becomes a winding of transformer secondary through pedestal window 3, described pedestal center pillar 2 forms another winding of transformer secondary through substrate window 7, pedestal 1 and substrate 5 are electrically connected to form the centre tap of transformer secondary winding, but are not electrically connected between substrate center pillar 6 with pedestal window 4, between pedestal center pillar 3 with substrate window 7.
The integral high frequency power transformer structure of said structure is closely, succinctly, easy for installation, builds standardization, is applicable to suitability for industrialized production.Transformer secondary output adopts unitary conductive material to form transformer secondary winding, and its conductive area is large, and good heat dissipation effect, very easily does forced air cooling, water-cooled or oil cooling, above the high-power high-frequency switch power supply being particularly suitable for big current.
Specific embodiment described herein is only illustrating spirit of the present invention; those skilled in the art can make various amendment to this specific embodiment or supplement or adopt similar mode to substitute under the prerequisite without prejudice to principle of the present invention and essence, but these changes all fall into protection scope of the present invention.Therefore the technology of the present invention scope is not limited to above-described embodiment.

Claims (1)

1. an integral high frequency power transformer structure, comprises toroidal transformer magnetic core, transformer primary side winding, pedestal and substrate; Described transformer primary side winding is around on toroidal transformer magnetic core by multiply enamelled wire uniform ring and forms, and the transformer toroidal core being wound with former limit winding is positioned in the annular groove of pedestal; The substrate center pillar that substrate is provided with passes the pedestal window had in toroidal transformer magnetic core and pedestal, the substrate window that the pedestal center pillar be provided with in pedestal is provided with through toroidal transformer magnetic core and substrate; Substrate center pillar and pedestal center pillar form two windings of transformer secondary, and pedestal and substrate are electrically connected to form the centre tap of vice-side winding; Described pedestal is cuboid conductor material, cuboid one side center has described annular groove, the mid portion of described annular groove is as described pedestal center pillar, this pedestal center pillar is along the remaining half of its center longitudinally cutting, extended to the another side of cuboid by the part of cutting always, and form described pedestal window at this another side; Described annular groove size is wound with the toroidal transformer magnetic core of former limit winding described in be able to putting into; Described substrate is an electric conducting material, the one side center of substrate is connected with substrate center pillar, this substrate center pillar is along the remaining half of its center longitudinally cutting, extended to the another side of substrate by the part of cutting always, and forming described substrate window at this another side, substrate center pillar is equal with the radius of pedestal center pillar; The described toroidal transformer magnetic core being wound with former limit winding is positioned in the annular groove of pedestal, substrate center pillar is through the pedestal window bottom pedestal, pedestal center pillar is through the substrate window on substrate, be electrically connected between substrate with pedestal, but be not electrically connected between substrate center pillar with pedestal window, between pedestal center pillar with substrate window.
CN201310325959.8A 2013-07-31 2013-07-31 A kind of integral high frequency power transformer Active CN103366933B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103973133A (en) * 2014-04-04 2014-08-06 华南理工大学 Full-water-cooling high-frequency power transformer and secondary rectifying module structure
CN103956913A (en) * 2014-04-04 2014-07-30 华南理工大学 High-power full-water-cooling synchronous rectification structure
CN105826065B (en) * 2016-04-23 2019-08-13 惠州永锋纳米科技有限公司 A kind of method and device thereof increasing transformer output power
CN106783077A (en) * 2017-01-03 2017-05-31 中山市鑫中亚电源科技有限公司 A kind of transformer

Citations (5)

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Publication number Priority date Publication date Assignee Title
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
CN201594444U (en) * 2010-01-26 2010-09-29 于小冬 Water-cooled radiating system of high-frequency switching power supply
CN202067628U (en) * 2011-05-18 2011-12-07 佛山市杰创科技有限公司 High frequency switch transformer employing shell as low voltage winding
CN102956350A (en) * 2012-11-12 2013-03-06 华南理工大学 Integrated high-frequency power transformer
CN203366967U (en) * 2013-07-31 2013-12-25 华南理工大学 Integrated high-frequency power transformer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090322460A1 (en) * 2008-06-25 2009-12-31 Lin Hsun-I High-frequency switching-type direct-current rectifier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN201594444U (en) * 2010-01-26 2010-09-29 于小冬 Water-cooled radiating system of high-frequency switching power supply
CN202067628U (en) * 2011-05-18 2011-12-07 佛山市杰创科技有限公司 High frequency switch transformer employing shell as low voltage winding
CN102956350A (en) * 2012-11-12 2013-03-06 华南理工大学 Integrated high-frequency power transformer
CN203366967U (en) * 2013-07-31 2013-12-25 华南理工大学 Integrated high-frequency power transformer

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