CN102709038A - Structure of main transformer composed of multiple transformers in inverter power sources - Google Patents
Structure of main transformer composed of multiple transformers in inverter power sources Download PDFInfo
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- CN102709038A CN102709038A CN2012102307975A CN201210230797A CN102709038A CN 102709038 A CN102709038 A CN 102709038A CN 2012102307975 A CN2012102307975 A CN 2012102307975A CN 201210230797 A CN201210230797 A CN 201210230797A CN 102709038 A CN102709038 A CN 102709038A
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Abstract
The invention provides a structure of a main transformer composed of multiple transformers in inverter power sources. The structure comprises a plurality of transformers, primary windings of the plurality of transformers are mutually connected in parallel, and secondary windings are connected in series to serve as secondary outputs. The primary windings use enameled wires to wind on frameworks which are fixed on printed circuit boards (PCBs); wires are printed in the PCBs, copper bars are welded on the PCBs, and copper bars are connected with wires in the PCB to form secondary windings of the transformers together; and magnetic cores are sleeved on peripheries of the copper bars and pressed tightly with the copper bars, and the frames are surrounded inside the magnetic cores. The structure has the advantages that the secondary windings of the main transformer are connected in series, uneven flow phenomena caused by parallel usage of main transformers in inverter power sources are overcome, and reliabilities of main circuit are improved; copper bars and PCBs are combined to form secondary windings, so that heat-dissipation problem of primary windings and secondary windings in transformers and fixing problems of the main transformer are solved; and heat dissipation of the main transformer and whole inverter power source circuits is facilitated, and reliabilities of inverter power source circuits are improved.
Description
Technical field
The present invention relates to the structure of a plurality of transformers composition main transformers in a kind of inverter, belong to the inverter field.
Background technology
In existing inverter, main transformer need use two or more relatively little transformers to use as a main transformer altogether sometimes.The main transformer of general inverter adopts parallel way; It is also parallel connection of the secondary B of elementary A parallel connection; As shown in Figure 1 and since its connected mode determined the electric current that flows through on each transformer be inhomogeneous promptly be unequal (because the winding material of each transformer and resistance that other factors can influence it).Thereby, require the parameter consistency of each transformer to get well, could satisfy the requirement of circuit like this.Because the inferior of transformer had influence on its heat radiation to a certain extent extremely tightly around elementary skin, make to be difficult for the heat that transformer produces down in working order distributing on the other hand.Therefore, have influence on the stability of main circuit work.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, the structure of a plurality of transformers composition main transformers in a kind of inverter is provided, make when satisfying circuit requirement,, be convenient to heat radiation the parameter request reduction of transformer.
According to technical scheme provided by the invention; A plurality of transformers are formed the structure of main transformer in the said inverter; Comprise a plurality of transformers; Said transformer comprises elementary winding, secondary winding and magnetic core, and the elementary winding of said a plurality of transformers is parallel connection mutually, and said a plurality of Secondary winding of transformer series connection back is as secondary output.
Said elementary winding adopts enamelled wire on skeleton, and skeletal fixation is in printed board; Be printed with lead in the said printed board, be welded with copper bar in the printed board, copper bar is electrically connected with the interior lead of printed board, constitutes Secondary winding of transformer jointly; Magnetic core is enclosed within the copper bar periphery, compresses with copper bar, and said skeleton is surrounded in the magnetic core.
Further, said elementary winding is surrounded by insulating barrier outward.Said copper bar is centered around outside the elementary winding, and leaves the gap between the elementary winding.Be fixed between a plurality of transformers in the printed board and leave the gap.Leave the gap between the said transformer copper bar arranged side by side.
Be series connection between the copper bar of said transformer.
Advantage of the present invention is: the secondary series system that adopted of main transformer, overcome main transformer parallel connection use in the inverter and the uneven flow phenomenon of generation, and improved the reliability of main circuit; Combine with printed board to form secondary winding with copper bar, both solved the heat radiation difficult problem of the elementary winding of transformer, solved the fixation problem of the heat dissipation problem and the main transformer of secondary winding again; This structure helps the heat radiation of main transformer and the heat radiation of whole inverter power circuit, has improved the reliability of inverter power circuit.
Description of drawings
Fig. 1 is the circuit theory diagrams that a plurality of transformers of inverter are formed main transformer in the prior art.
Fig. 2 is circuit theory diagrams of the present invention.
Fig. 3 is the structural representation that two transformers of the embodiment of the invention are formed main transformer.
Fig. 4 is that the A of Fig. 3 is to profile.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
The present invention adopts another kind of main transformer connected mode.With the elementary winding A parallel connection mutually of a plurality of transformers,, as shown in Figure 2 after its secondary windings in series as secondary B output.
Like Fig. 3, shown in 4, transformer 1 comprises elementary winding 2, secondary winding and magnetic core 3, and said elementary winding 2 adopts enamelled wires on skeleton 4, and skeleton 4 is fixed in the printed board 5; Be printed with lead in the said printed board 5, be welded with copper bar 6 in the printed board 5, copper bar 6 is electrically connected with printed board 5 interior leads, constitutes the secondary winding of transformer 1 jointly; Magnetic core 3 is enclosed within copper bar 6 peripheries, compresses with copper bar 6, and said skeleton 4 is surrounded in the magnetic core 3.Magnetic core 3 docks for upper and lower two E type magnetic cores, and magnetic core is surrounded winding.
The said elementary winding 2 outer insulating barriers 7 that are surrounded by.Copper bar 6 is centered around outside the elementary winding 2, and leaves the gap between the elementary winding 2.Be series connection between the copper bar 6 of transformer 1.As shown in Figure 4, copper bar 6 is through bump 9 and the welding of printed board 5 reverse side.
What a plurality of transformers 1 were arranged is fixed in the printed board 5, leaves the gap between the transformer 1.The secondary terminal 1-2 of final main transformer draws from printed board 5, and the enamelled wire exit 1-1 of the elementary winding 2 of each transformer 1 is connected in parallel and forms the elementary terminal of main transformer.Installing hole 8 is set in the printed board 5, is used for the fixed installation of main transformer.
Below analyze explanation from three aspects.
1. two of inverter transformers 1 use altogether; Adopt the secondary series system of elementary parallel connection; Its advantage is: because the secondary series system that adopted, guaranteed that the electric current that flows through secondary transformer equates, made that also the electric current of main transformer on elementary is the same.Like this, thoroughly overcome main transformer parallel connection use in the inverter and the uneven flow phenomenon of generation, improved the reliability of main circuit.
2. because main transformer adopts elementary parallel connection; The open coiling of secondary series connection; The secondary of main transformer is to combine to have formed secondary winding with copper bar 6 with printed board 5, and 6 gaps that a broad is arranged of two copper bars of series connection, copper bar 5 and be not tightly on elementary winding 2; Printed board 5 both can be used as the lead of coil and had used; Transformer 1 usefulness that can fix had again so both solved the heat radiation difficult problem of the elementary winding 2 of transformer, had solved the fixation problem of the heat dissipation problem and the main transformer of secondary winding again.
3. main transformer line bag combines (transformer line bag is formed by the enamelled wire coiling usually) by enamelled wire, copper bar 6, printed board 5.Turn to the main transformer assembly by enamelled wire, copper bar 6, printed board 5; Make an independent device; This device radiation property is good, is convenient for people to according to the air channel in the inverter, places in place; Help the heat radiation of main transformer and the heat radiation of whole inverter power circuit like this, improved the reliability of inverter power circuit.
Claims (7)
1. a plurality of transformers are formed the structure of main transformers in the inverter; Comprise a plurality of transformers (1); Said transformer (1) comprises elementary winding (2), secondary winding and magnetic core (3); It is characterized in that: the elementary winding (2) of said a plurality of transformers (1) is parallel connection mutually, and the secondary winding series connection back of said a plurality of transformers (1) is as secondary output.
According to claim 1 in the inverter a plurality of transformers form the structure of main transformers, it is characterized in that said elementary winding (2) adopts enamelled wire on skeleton (4), skeleton (4) is fixed in the printed board (5); Said printed board is printed with lead in (5), is welded with copper bar (6) in the printed board (5), and copper bar (6) is electrically connected with the interior lead of printed board (5), constitutes the secondary winding of transformer (1) jointly; Magnetic core (3) is enclosed within copper bar (6) periphery, compresses with copper bar (6), and said skeleton (4) is surrounded in the magnetic core (3).
3. form the structure of main transformer like a plurality of transformers in the said inverter of claim 2, it is characterized in that, the outer insulating barrier (7) that is surrounded by of said elementary winding (2).
4. form the structure of main transformer like a plurality of transformers in the said inverter of claim 2, it is characterized in that said copper bar (6) is centered around outside the elementary winding (2), and leave the gap between the elementary winding (2).
5. form the structure of main transformer like a plurality of transformers in the said inverter of claim 2, it is characterized in that, be fixed between a plurality of transformers (1) in the printed board (5) and leave the gap.
6. form the structure of main transformers like a plurality of transformers in the said inverter of claim 2, it is characterized in that, leave the gap between said transformer (1) copper bar (6) arranged side by side.
7. form the structure of main transformer like a plurality of transformers in the said inverter of claim 2, it is characterized in that, be series connection between the copper bar (6) of said transformer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102307975A CN102709038A (en) | 2012-07-04 | 2012-07-04 | Structure of main transformer composed of multiple transformers in inverter power sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102307975A CN102709038A (en) | 2012-07-04 | 2012-07-04 | Structure of main transformer composed of multiple transformers in inverter power sources |
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| CN102709038A true CN102709038A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102307975A Pending CN102709038A (en) | 2012-07-04 | 2012-07-04 | Structure of main transformer composed of multiple transformers in inverter power sources |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854839A (en) * | 2012-12-05 | 2014-06-11 | 苏州市申浦电源设备厂 | Middle-high-frequency high power transformer |
| CN104078217A (en) * | 2013-03-29 | 2014-10-01 | 台达电子工业股份有限公司 | Transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010314A (en) * | 1990-03-30 | 1991-04-23 | Multisource Technology Corp. | Low-profile planar transformer for use in off-line switching power supplies |
| CN1685595A (en) * | 2003-08-29 | 2005-10-19 | 松下电器产业株式会社 | Power converting module device and power unit using it |
| CN101009154A (en) * | 2006-02-20 | 2007-08-01 | 艾默龙电子科技（嘉兴）有限公司 | A high-density and high current transformer structure |
| CN201081806Y (en) * | 2007-08-24 | 2008-07-02 | 艾默生网络能源系统有限公司 | Planar transformer |
| CN201590320U (en) * | 2009-12-16 | 2010-09-22 | 艾默生网络能源有限公司 | Vertical-type flat-plate transformer |
| CN101882878A (en) * | 2010-02-08 | 2010-11-10 | 金华大维电子科技有限公司 | High-power high-frequency high-voltage rectifier transformer for electric precipitation |
| CN202695100U (en) * | 2012-07-04 | 2013-01-23 | 无锡汉神电气有限公司 | Structure of main transformer consisting of multiple transformers in inverse power supply |
-
2012
- 2012-07-04 CN CN2012102307975A patent/CN102709038A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010314A (en) * | 1990-03-30 | 1991-04-23 | Multisource Technology Corp. | Low-profile planar transformer for use in off-line switching power supplies |
| CN1685595A (en) * | 2003-08-29 | 2005-10-19 | 松下电器产业株式会社 | Power converting module device and power unit using it |
| CN101009154A (en) * | 2006-02-20 | 2007-08-01 | 艾默龙电子科技（嘉兴）有限公司 | A high-density and high current transformer structure |
| CN201081806Y (en) * | 2007-08-24 | 2008-07-02 | 艾默生网络能源系统有限公司 | Planar transformer |
| CN201590320U (en) * | 2009-12-16 | 2010-09-22 | 艾默生网络能源有限公司 | Vertical-type flat-plate transformer |
| CN101882878A (en) * | 2010-02-08 | 2010-11-10 | 金华大维电子科技有限公司 | High-power high-frequency high-voltage rectifier transformer for electric precipitation |
| CN202695100U (en) * | 2012-07-04 | 2013-01-23 | 无锡汉神电气有限公司 | Structure of main transformer consisting of multiple transformers in inverse power supply |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854839A (en) * | 2012-12-05 | 2014-06-11 | 苏州市申浦电源设备厂 | Middle-high-frequency high power transformer |
| CN103854839B (en) * | 2012-12-05 | 2016-06-15 | 苏州市申浦电源设备厂 | A kind of medium-high frequency high-power transformer |
| CN104078217A (en) * | 2013-03-29 | 2014-10-01 | 台达电子工业股份有限公司 | Transformer |
| CN104078217B (en) * | 2013-03-29 | 2016-08-17 | 台达电子工业股份有限公司 | Potential device |
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Application publication date: 20121003 |