CN202695100U - Structure of main transformer consisting of multiple transformers in inverse power supply - Google Patents
Structure of main transformer consisting of multiple transformers in inverse power supply Download PDFInfo
- Publication number
- CN202695100U CN202695100U CN 201220323064 CN201220323064U CN202695100U CN 202695100 U CN202695100 U CN 202695100U CN 201220323064 CN201220323064 CN 201220323064 CN 201220323064 U CN201220323064 U CN 201220323064U CN 202695100 U CN202695100 U CN 202695100U
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- CN
- China
- Prior art keywords
- transformers
- printed board
- main transformer
- copper bar
- inverter
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- 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
Links
- 238000004804 winding Methods 0.000 claims abstract description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 claims abstract description 31
- 239000010949 copper Substances 0.000 claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Inverter Devices (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a structure of a main transformer consisting of multiple transformers in an inverse power supply. The structure comprises the multiple transformers whose primary windings are mutually connected in parallel and secondary windings are connected in series as secondary outputs. The primary windings are wound on a skeleton by enamelled wires, and the skeleton is fixed on a printed board; leads are printed inside the printed board, and copper bars are welded on the printed board and electrically connected with the leads in the printed board, so as to form the secondary windings of the transformers together; and a magnetic core is sleeved around the copper bars and compacted with the copper bars, and the skeleton is enclosed inside the magnetic core. The structure has the following advantages as follows: as the secondary windings of the main transformer are connected in series, the uneven flow caused by the parallel connection of the main transformer in the inverse power supply can be avoided, and the reliability of a main circuit can be enhanced; as the copper bars are combined with the printed board to form the secondary windings, the problem for heat dissipation of the primary windings and the secondary windings of the transformers and the problem of fixing the main transformer can be solved; and the structure is good for the heat dissipation of the main transformer and the whole inverse power supply circuit, and the reliability of the inverse power supply circuit can be enhanced.
Description
Technical field
The utility model relates to the structure of a plurality of transformers composition main transformers in a kind of inverter, belongs to the inverter field.
Background technology
In existing inverter, main transformer needs to use as a main transformer altogether with two or more relatively little transformers sometimes.The main transformer of general inverter adopts parallel way, be that elementary A secondary B in parallel is also in parallel, as shown in Figure 1, since its connected mode determined the electric current that flows through on each transformer be inhomogeneous namely be unequal (because the winding material of each transformer and resistance that other factors can affect it).Thereby, require the parameter consistency of each transformer to get well, could satisfy like this requirement of circuit.On the other hand because the inferior of transformer had influence on its heat radiation to a certain extent extremely tightly around elementary skin, so that the heat that transformer produces down in working order is difficult for distributing.Therefore, have influence on the stability of main circuit work.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a plurality of transformers form the structure of main transformers in a kind of inverter, so that when satisfying circuit requirement, the parameter request of transformer is reduced, and is convenient to heat radiation.
The technical scheme that provides according to the utility model, a plurality of transformers form the structure of main transformer in the described inverter, comprise a plurality of transformers, described transformer comprises armature winding, secondary winding and magnetic core, the armature winding of described a plurality of transformers is in parallel mutually, and the secondary winding series connection of described a plurality of transformers is rear as secondary output.
Described armature winding adopts enamelled wire on skeleton, and skeleton is fixed in the printed board; Be printed with wire in the described printed board, be welded with copper bar in the printed board, the wire in copper bar and the printed board is electrically connected, and jointly consists of the secondary winding of transformer; Magnetic core is enclosed within the copper bar periphery, compresses with copper bar, and described skeleton is surrounded in the magnetic core.
Further, described armature winding is surrounded by insulating barrier outward.Described copper bar is centered around outside the armature winding, and leaves the gap between the armature winding.Be fixed between a plurality of transformers in the printed board and leave the gap.Leave the gap between the described transformer copper bar arranged side by side.
Be series connection between the copper bar of described transformer.
The utility model has the advantages that: the secondary series system that adopted of main transformer, overcome in parallel use of main transformer in the inverter and the uneven flow phenomenon of generation, improved the reliability of main circuit; Be combined with printed board with copper bar and form secondary winding, both solved the heat radiation difficult problem of the armature winding of transformer, solved again the fixation problem of heat dissipation problem and the main transformer of secondary winding; This structure is conducive to 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 form main transformer in the prior art.
Fig. 2 is circuit theory diagrams of the present utility model.
Fig. 3 is the structural representation that two transformers of the utility model embodiment form main transformer.
Fig. 4 is that the A of Fig. 3 is to profile.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model adopts another kind of main transformer connected mode.The armature winding A of a plurality of transformers is in parallel mutually, export as secondary B after its secondary windings in series, as shown in Figure 2.
Such as Fig. 3, shown in 4, transformer 1 comprises armature winding 2, secondary winding and magnetic core 3, and described armature winding 2 adopts enamelled wire on skeleton 4, and skeleton 4 is fixed in the printed board 5; Be printed with wire in the described printed board 5, be welded with copper bar 6 in the printed board 5, the wire in copper bar 6 and the printed board 5 is electrically connected, and jointly consists of the secondary winding of transformer 1; Magnetic core 3 is enclosed within copper bar 6 peripheries, compresses with copper bar 6, and described 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 described armature winding 2 outer insulating barriers 7 that are surrounded by.Copper bar 6 is centered around outside the armature winding 2, and leaves the gap between the armature winding 2.Be series connection between the copper bar 6 of transformer 1.As shown in Figure 4, copper bar 6 is by 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 armature 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 come analytic 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, also so that the electric current of main transformer on elementary is the same.Like this, thoroughly overcome in parallel use of main transformer 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 have formed secondary winding with copper bar 6 and printed board 5 combinations, and 6 of two copper bars of series connection have a wider gap, copper bar 5 and be not tightly on armature winding 2, printed board 5 both can be used as the wire of coil and had used, transformer 1 usefulness can fix again, so both solve the heat radiation difficult problem of the armature winding 2 of transformer, solved again the fixation problem of heat dissipation problem and the main transformer of secondary winding.
3. main transformer line bag combines (the transformer wire 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 independently device, this device radiation is good, be convenient for people to according to the air channel in the inverter, place in place, be conducive to like this heat radiation of main transformer and the heat radiation of whole inverter power circuit, improved the reliability of inverter power circuit.
Claims (7)
1. a plurality of transformers form the structure of main transformers in the inverter, comprise a plurality of transformers (1), described transformer (1) comprises armature winding (2), secondary winding and magnetic core (3), it is characterized in that: the armature winding (2) of described a plurality of transformers (1) is in parallel mutually, and the secondary winding series connection of described a plurality of transformers (1) is rear as secondary output.
As claimed in claim 1 in the inverter a plurality of transformers form the structure of main transformers, it is characterized in that described armature winding (2) adopts enamelled wire on skeleton (4), skeleton (4) is fixed in the printed board (5); Described printed board is printed with wire in (5), is welded with copper bar (6) in the printed board (5), and the wire in copper bar (6) and the printed board (5) is electrically connected, and jointly consists of the secondary winding of transformer (1); Magnetic core (3) is enclosed within copper bar (6) periphery, compresses with copper bar (6), and described skeleton (4) is surrounded in the magnetic core (3).
As claimed in claim 2 in the inverter a plurality of transformers form the structure of main transformers, it is characterized in that the outer insulating barrier (7) that is surrounded by of described armature winding (2).
As claimed in claim 2 in the inverter a plurality of transformers form the structure of main transformers, it is characterized in that described copper bar (6) is centered around outside the armature winding (2), and leave the gap between the armature winding (2).
As claimed in claim 2 in the inverter a plurality of transformers form the structure of main transformers, it is characterized in that, be fixed between a plurality of transformers (1) in the printed board (5) and leave the gap.
As claimed in claim 2 in the inverter a plurality of transformers form the structure of main transformers, it is characterized in that, leave the gap between described transformer (1) copper bar (6) arranged side by side.
As claimed in claim 2 in the inverter a plurality of transformers form the structure of main transformers, it is characterized in that, be series connection between the copper bar (6) of described transformer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323064 CN202695100U (en) | 2012-07-04 | 2012-07-04 | Structure of main transformer consisting of multiple transformers in inverse power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323064 CN202695100U (en) | 2012-07-04 | 2012-07-04 | Structure of main transformer consisting of multiple transformers in inverse power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695100U true CN202695100U (en) | 2013-01-23 |
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ID=47550682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220323064 Expired - Fee Related CN202695100U (en) | 2012-07-04 | 2012-07-04 | Structure of main transformer consisting of multiple transformers in inverse power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695100U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709038A (en) * | 2012-07-04 | 2012-10-03 | 无锡汉神电气有限公司 | Structure of main transformer composed of multiple transformers in inverter power sources |
| CN106104723A (en) * | 2014-03-12 | 2016-11-09 | 日立汽车系统株式会社 | Transformer and the power inverter using this transformer |
| CN106920662A (en) * | 2017-05-04 | 2017-07-04 | 山东民生电气设备有限公司 | A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer |
-
2012
- 2012-07-04 CN CN 201220323064 patent/CN202695100U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709038A (en) * | 2012-07-04 | 2012-10-03 | 无锡汉神电气有限公司 | Structure of main transformer composed of multiple transformers in inverter power sources |
| CN106104723A (en) * | 2014-03-12 | 2016-11-09 | 日立汽车系统株式会社 | Transformer and the power inverter using this transformer |
| CN106920662A (en) * | 2017-05-04 | 2017-07-04 | 山东民生电气设备有限公司 | A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer |
| CN106920662B (en) * | 2017-05-04 | 2018-07-13 | 山东民生电气设备有限公司 | A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180704 |