CN102684524B - A kind of high-efficiency inverter - Google Patents
A kind of high-efficiency inverter Download PDFInfo
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- CN102684524B CN102684524B CN201110349918.3A CN201110349918A CN102684524B CN 102684524 B CN102684524 B CN 102684524B CN 201110349918 A CN201110349918 A CN 201110349918A CN 102684524 B CN102684524 B CN 102684524B
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- 238000004804 winding Methods 0.000 claims abstract description 36
- 239000008358 core component Substances 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000011796 hollow space material Substances 0.000 claims abstract description 10
- 239000000306 component Substances 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims description 16
- 230000005855 radiation Effects 0.000 abstract description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of high-efficiency inverter, comprise the transformer and some electronic switching tubes of being with main thermal component, magnetic core component is ultracrystalline magnetic core, there is circle ring column shape wound portion, main thermal component comprises interconnective blower fan and metal heat sink, metal heat sink comprises the first radiator and the second radiator that are interconnected by an insulating element, one end of first armature winding connects the first radiator and is electrically connected conducting with the first radiator, and the other end is connected with positive source from the axial side of wound portion through after the hollow space of circle ring column shape wound portion; One end of second armature winding connects the second radiator and is electrically connected conducting with the second radiator, and the other end is connected with positive source from the axial opposite side of wound portion through after the hollow space of circle ring column shape wound portion.Thermal diffusivity of the present invention is splendid, and heat conduction efficiency is high, greatly can improve the heat radiation power of transformer, and significantly improves complete machine operating efficiency.
Description
Technical field
The present invention relates to transformer, particularly relate to a kind of high-efficiency inverter with high efficient heat dissipation performance.
Background technology
Inverter (Inverter) is that direct current energy (battery, accumulator jar) is transformed into alternating current (being generally 220v, 50Hz sine or square wave), generally, inverter is a kind of device direct current (DC) being converted into alternating current (AC), and it is made up of inverter bridge, control logic and filter circuit.In direct current input, exchange in the inverter of output, the usual voltage of input stage is lower, adopts push-pull type working method so normal.Figure 1 shows that the main circuit of push-pull dc-to-ac, inverter is by having centre-tapped transformer T
t, two switching tube V
1, V
2with two diode D
1, D
2forming, is a kind of version of full symmetric, and V
1and V
2emitter is connected on the negative pole of power supply, drives very convenient, also need not isolate.Transformer T
tthe equal turn numbers of two armature windings, i.e. W
11=W
12=W
1, the number of turn of secondary winding is W
2, input dc power is added on transformer T
tprimary center tap on, transformer T
telementary another two exits with connecting under two electronic switches respectively.
Transformer adopts ferrite transformer usually, Chinese patent CN1989579A discloses a kind of transformer for inverter, comprise: bobbin, it coil winding part comprising at least one barrier between a pair opposing sidewalls and be divided into low voltage side and high-voltage side by described barrier, two strands or more strand circles are wrapped in around the described coil winding part of described low voltage side, and the ferrite core be inserted in described bobbin, described ferrite core surrounds described bobbin and guides magnetic flux.Generally be around in line bag by elementary in such transformer, draw with pin and be welded on pcb board, this mode is unfavorable for that transformer dispels the heat in high-power applications.
Summary of the invention
For above-mentioned Problems existing, the object of this invention is to provide a kind of high-efficiency inverter, greatly can improve the heat radiation power of transformer, and significantly improve complete machine operating efficiency.
The object of the invention is to be achieved through the following technical solutions:
A kind of high-efficiency inverter, comprise the transformer and some electronic switching tubes of being with main thermal component, described transformer comprises primary coil section, magnetic core component and secondary coil portion, described some electronic switching tubes are metal-oxide-semiconductor, the source electrode of described metal-oxide-semiconductor is connected with power cathode respectively, described primary coil section is two armature windings with the equal number number of turn, wherein:
Described magnetic core component has circle ring column shape wound portion, and multiply coil is wrapped in the circle ring column shape wound portion of described magnetic core component, forms described secondary coil portion;
Described main thermal component comprises interconnective blower fan and metal heat sink, and described metal heat sink comprises the first radiator and the second radiator that are interconnected by an insulating element, and described two armature windings comprise the first armature winding and the second armature winding; One end of described first armature winding connects described first radiator and is electrically connected conducting with described first radiator, and the other end is connected with positive source from the axial side of described circle ring column shape wound portion through after the hollow space of described circle ring column shape wound portion; One end of described second armature winding connects described second radiator and is electrically connected conducting with described second radiator, and the other end is connected with positive source from the axial opposite side of described circle ring column shape wound portion through after the hollow space of described circle ring column shape wound portion;
The drain electrode of described some electronic switching tubes to be close to respectively on described metal heat sink and to be electrically connected conducting with described metal heat sink.
Above-mentioned high-efficiency inverter, wherein, described magnetic core component is ultracrystalline magnetic core.
Above-mentioned high-efficiency inverter, wherein, the number of turn of two described armature windings is 1 to 3 circle.
Above-mentioned high-efficiency inverter, wherein, described magnetic core component and described blower fan are respectively in the both sides of described metal heat sink.
Above-mentioned high-efficiency inverter, wherein, described some electronic switching tube composition push-pull circuits.
Above-mentioned high-efficiency inverter, wherein, described some electronic switching tubes are four metal-oxide-semiconductors or six metal-oxide-semiconductors or eight metal-oxide-semiconductors, and are distributed in equably on described first radiator and described second radiator.
Above-mentioned high-efficiency inverter, wherein, the structure that described blower fan, described metal heat sink, described four electronic switching tubes, described primary coil section, described magnetic core component and described secondary coil portion are formed is axial symmetry distribution.
Above-mentioned high-efficiency inverter, wherein, the axis of described magnetic core component is horizontal direction and parallel with described metal heat sink.
Compared with the prior art, beneficial effect of the present invention is:
The magnetic core component 1, with cylindrical wound portion around on after secondary coil, before being fixed on metal heat sink, the air-flow around such transformer is maximum, is conducive to heat radiation;
2,2 armature windings of primary coil section connect in axial symmetry mode, and not only make the length of 2 armature windings short, resistance loss is little, and owing to being open type, thermal diffusivity is splendid, and simultaneously owing to being directly be electrically connected on radiator, radiator also can help armature winding to dispel the heat;
3, the drain electrode of electronic switching tube to be close to respectively on metal heat sink and to be electrically connected conducting with metal heat sink, and heat conduction efficiency is high.
Accompanying drawing explanation
Fig. 1 draws the main circuit of push-pull dc-to-ac in prior art;
Fig. 2 draws the oblique view of a most preferred embodiment according to high-efficiency inverter of the present invention;
Fig. 3 draws another oblique view of a most preferred embodiment according to high-efficiency inverter of the present invention
Fig. 4 draws the front view of a most preferred embodiment according to high-efficiency inverter of the present invention;
Fig. 5 draws the left view of Fig. 4;
Fig. 6 draws the vertical view of Fig. 4.
Embodiment
Below in conjunction with the most preferred embodiment of schematic diagram and concrete operations, the invention will be further described.
Fig. 2 ~ Fig. 6 shows the view of all angles of high-efficiency inverter of the present invention, the part of making mark in figure is the agent structure of transformer substantially, other parts on circuit board are the prior art about inverter, therefore major part is omitted, and also please ignore the structure of the part unrelated to the invention without mark.
Shown in figure, high-efficiency inverter of the present invention comprises the transformer 1 and some electronic switching tubes 2 of being with main thermal component, transformer 1 comprises primary coil section 11, magnetic core component 12 and secondary coil portion 13, some electronic switching tubes 2 are metal-oxide-semiconductor, the source electrode of metal-oxide-semiconductor is connected with power cathode respectively, and primary coil section 11 is for having two armature windings 11 of the equal number number of turn.
Magnetic core component 12 has circle ring column shape wound portion, and multiply coil is wrapped in the circle ring column shape wound portion of magnetic core component 12, forms secondary coil portion.Main thermal component comprises interconnective blower fan 3 and metal heat sink 4, metal heat sink 4 comprises the first radiator 41 of being interconnected by an insulating element (not drawing in the drawings) and the second radiator 42, two armature windings 11 comprise the first armature winding 111 and the second armature winding 112.One end of first armature winding 111 connects the first radiator 41 and is electrically connected conducting with the first radiator 41, and the other end is connected with positive source from the axial side of circle ring column shape wound portion through after the hollow space of circle ring column shape wound portion.One end of second armature winding 112 connects the second radiator 42 and is electrically connected conducting with the second radiator 42, and the other end is connected with positive source from the axial opposite side of circle ring column shape wound portion through after the hollow space of circle ring column shape wound portion.
The drain electrode of some electronic switching tubes 2 to be close to respectively on metal heat sink 4 and to be electrically connected conducting with metal heat sink 4, and this structure makes heat conduction efficiency high.Electronic switching tube 2 is four metal-oxide-semiconductors or six metal-oxide-semiconductors or eight metal-oxide-semiconductors, composition push-pull circuit, and the watt level specifically needed for reality and circuit form and set, and the first radiator 41 and the second radiator 42 are respectively equipped with 2 metal-oxide-semiconductors.
Further, magnetic core component is ultracrystalline magnetic core.Ultracrystallite, also known as nano amorphous, is a kind of novel magnetic materials.Ultracrystalline magnetic core has the advantages such as high magnetic permeability, high squareness ratio, core loss low and high temperature good stability, also has higher saturation induction density in addition, high magnetic permeability, low-coercivity, low-loss and good stability, resistance to wear and corrosion resistance.In this most preferred embodiment, because the inductance of this kind of magnetic core is comparatively large, so only need around 1 circle at DC low-voltage power supply-charging side armature winding, the number of turn of two armature windings be 1, and namely wire is through the hollow space of magnetic core component 12.Except this optimum embodiment, 2 circles or 3 circle armature windings can also be set according to the watt level of reality, but preferably not more than 3 circles, otherwise the advantage that the unfavorable winding realizing primary coil section 11 of the present invention is convenient and simple.
Magnetic core component 12 and blower fan are respectively in the both sides of metal heat sink 4.The magnetic core component 12 with cylindrical wound portion around on after secondary coil 13, before being fixed on metal heat sink 4, the air-flow around such transformer 1 is maximum, is conducive to heat radiation.The structure that blower fan 3, metal heat sink 4, four electronic switching tubes 2, primary coil section 11, magnetic core component 12 and secondary coil portions 13 are formed is axial symmetry distribution, 2 armature windings of primary coil section 11 connect in axial symmetry mode, not only make the length of 2 armature windings short, resistance loss is little, and owing to being open type, thermal diffusivity is splendid, and simultaneously owing to being directly be electrically connected on radiator 4, radiator 4 also can help armature winding to dispel the heat.The axis of magnetic core component 12 is horizontal direction and parallel with metal heat sink 4.
In sum, high-efficiency inverter magnetic core component of the present invention is ultracrystalline magnetic core, there is circle ring column shape wound portion, main thermal component comprises interconnective blower fan and metal heat sink, primary coil section is two wires, is connected in opposite directions respectively from the both sides of magnetic core component through after the hollow space of circle ring column shape magnetic core component with positive source.Thermal diffusivity of the present invention is splendid, and heat conduction efficiency is high.
Be described in detail specific embodiments of the invention above, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications that this high-efficiency inverter is carried out and substituting also all among category of the present invention.Therefore, equalization conversion done without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.
Claims (8)
1. a high-efficiency inverter, comprise the transformer and some electronic switching tubes of being with main thermal component, described transformer comprises primary coil section, magnetic core component and secondary coil portion, described some electronic switching tubes are metal-oxide-semiconductor, the source electrode of described metal-oxide-semiconductor is connected with power cathode respectively, described primary coil section is two armature windings with the equal number number of turn, it is characterized in that:
Described magnetic core component has circle ring column shape wound portion, and multiply coil is wrapped in the circle ring column shape wound portion of described magnetic core component, forms described secondary coil portion;
Described main thermal component comprises interconnective blower fan and metal heat sink, and described metal heat sink comprises the first radiator and the second radiator that are interconnected by an insulating element, and described two armature windings comprise the first armature winding and the second armature winding; One end of described first armature winding connects described first radiator and is electrically connected conducting with described first radiator, and the other end is connected with positive source from the axial side of described circle ring column shape wound portion through after the hollow space of described circle ring column shape wound portion; One end of described second armature winding connects described second radiator and is electrically connected conducting with described second radiator, and the other end is connected with positive source from the axial opposite side of described circle ring column shape wound portion through after the hollow space of described circle ring column shape wound portion;
The drain electrode of described some electronic switching tubes to be close to respectively on described metal heat sink and to be electrically connected conducting with described metal heat sink.
2. high-efficiency inverter according to claim 1, is characterized in that, described magnetic core component is ultracrystalline magnetic core.
3. high-efficiency inverter according to claim 2, is characterized in that, the number of turn of two described armature windings is 1 to 3 circle.
4. high-efficiency inverter according to claim 1, is characterized in that, described magnetic core component and described blower fan are respectively in the both sides of described metal heat sink.
5. high-efficiency inverter according to claim 1, is characterized in that, described some electronic switching tube composition push-pull circuits.
6. high-efficiency inverter according to claim 5, is characterized in that, described some electronic switching tubes are four metal-oxide-semiconductors or six metal-oxide-semiconductors or eight metal-oxide-semiconductors, and are distributed in equably on described first radiator and described second radiator.
7. high-efficiency inverter according to claim 6, it is characterized in that, the structure that described blower fan, described metal heat sink, described some electronic switching tubes, described primary coil section, described magnetic core component and described secondary coil portion are formed is axial symmetry distribution.
8. high-efficiency inverter according to claim 1, is characterized in that, the axis of described magnetic core component is horizontal direction and parallel with described metal heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110349918.3A CN102684524B (en) | 2011-11-08 | 2011-11-08 | A kind of high-efficiency inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110349918.3A CN102684524B (en) | 2011-11-08 | 2011-11-08 | A kind of high-efficiency inverter |
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| Publication Number | Publication Date |
|---|---|
| CN102684524A CN102684524A (en) | 2012-09-19 |
| CN102684524B true CN102684524B (en) | 2015-12-23 |
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|---|---|---|---|
| CN201110349918.3A Active CN102684524B (en) | 2011-11-08 | 2011-11-08 | A kind of high-efficiency inverter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153870B (en) * | 2020-09-25 | 2023-09-29 | 厦门科华数能科技有限公司 | Heat radiation structure and inverter |
| CN112543581B (en) * | 2020-11-18 | 2025-02-25 | 纽福克斯光电科技（上海）有限公司 | A heat dissipation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201130588Y (en) * | 2007-10-15 | 2008-10-08 | 张韶英 | High-efficiency energy-saving environment protection miniature primary-sublevel insulation type high-frequency transformer |
| CN101521095A (en) * | 2008-11-20 | 2009-09-02 | 武汉长江通信产业集团股份有限公司 | High frequency switching mode power supply transformer |
| CN101800121A (en) * | 2010-04-20 | 2010-08-11 | 江苏泰昌电子有限公司 | Asymmetric thin high-frequency switching power supply transformer |
| CN201966021U (en) * | 2011-01-17 | 2011-09-07 | 宁波市镇海跃阳电器厂(普通合伙) | High frequency transformer |
| CN202309555U (en) * | 2011-11-08 | 2012-07-04 | 纽福克斯光电科技（上海）有限公司 | High-efficiency inverter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5359749B2 (en) * | 2009-09-30 | 2013-12-04 | Ｔｄｋ株式会社 | Transformer and switching power supply |
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2011
- 2011-11-08 CN CN201110349918.3A patent/CN102684524B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201130588Y (en) * | 2007-10-15 | 2008-10-08 | 张韶英 | High-efficiency energy-saving environment protection miniature primary-sublevel insulation type high-frequency transformer |
| CN101521095A (en) * | 2008-11-20 | 2009-09-02 | 武汉长江通信产业集团股份有限公司 | High frequency switching mode power supply transformer |
| CN101800121A (en) * | 2010-04-20 | 2010-08-11 | 江苏泰昌电子有限公司 | Asymmetric thin high-frequency switching power supply transformer |
| CN201966021U (en) * | 2011-01-17 | 2011-09-07 | 宁波市镇海跃阳电器厂(普通合伙) | High frequency transformer |
| CN202309555U (en) * | 2011-11-08 | 2012-07-04 | 纽福克斯光电科技（上海）有限公司 | High-efficiency inverter |
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| CN102684524A (en) | 2012-09-19 |
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