CN108831712A - The structure of multiple transformer composition main transformers in inverter - Google Patents
The structure of multiple transformer composition main transformers in inverter Download PDFInfo
- Publication number
- CN108831712A CN108831712A CN201810655157.6A CN201810655157A CN108831712A CN 108831712 A CN108831712 A CN 108831712A CN 201810655157 A CN201810655157 A CN 201810655157A CN 108831712 A CN108831712 A CN 108831712A
- Authority
- CN
- China
- Prior art keywords
- copper bar
- inverter
- transformer
- printed board
- transformers
- 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.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2866—Combination of wires and sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
- H01F2027/065—Mounting on printed circuit boards
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The present invention provides a kind of structures of transformers multiple in inverter composition main transformer, including multiple transformers, the armature winding of the multiple transformer to be mutually in parallel, as secondary output after secondary windings series connection.The armature winding is wound on skeleton using enameled wire, and skeleton is fixed in printed board；It is printed with conducting wire in printed board, copper bar is welded in printed board, copper bar is electrically connected with the conducting wire in printed board, collectively forms the secondary windings of transformer；Magnetic core is covered in copper bar periphery, is compressed with copper bar, and skeleton is surrounded in magnetic core.Advantage is：Main transformer secondary uses series system, overcomes the uneven flow phenomenon of the generation used in parallel of main transformer in inverter, improves the reliability of main circuit；Secondary windings is formed in conjunction with printed board with copper bar, solves the fixation problem of primary winding, the heat dissipation problem of secondary windings and main transformer；Conducive to the heat dissipation of main transformer and entire inverter power circuit, the reliability of inverter power circuit is improved.
Description
The present invention relates to a kind of structures of transformers multiple in inverter composition main transformer, belong to inverter neck
Domain.
In existing inverter, main transformer is made altogether sometimes for two or more relatively small transformers
It is used for a main transformer.The main transformer of general inverter uses parallel way, i.e. primary A secondary B in parallel is also simultaneously
Connection, as shown in Figure 1, being unevenly unequal since its connection type determines that the electric current flowed through on each transformer is
(because the winding material and other factors of each transformer will affect its resistance value).To, it is desirable that the parameter of each transformer
Consistency will be got well, and just be able to satisfy the requirement of circuit in this way.On the other hand since the secondary pole of transformer is tightly around in primary outer layer, one
The heat dissipation for determining to have influenced it in degree, so that the heat that transformer generates in the operating condition, is not easy to distribute.Therefore,
Influence the stability of main circuit work.
The purpose of the present invention is overcoming the deficiencies in the prior art, multiple transformer groups in a kind of inverter are provided
At the structure of main transformer, while so that meeting circuit requirement, the parameter request of transformer is reduced, convenient for heat dissipation.
According to technical solution provided by the invention, the structure of multiple transformer composition main transformers in the inverter,
Including multiple transformers, the transformer includes armature winding, secondary windings and magnetic core, the armature winding of the multiple transformer
It is mutually in parallel, as secondary output after the secondary windings series connection of the multiple transformer.
The armature winding is wound on skeleton using enameled wire, and skeleton is fixed in printed board；Printing in the printed board
Have conducting wire, copper bar be welded in printed board, copper bar is electrically connected with the conducting wire in printed board, collectively form transformer it is secondary around
Group；Magnetic core is covered in copper bar periphery, is compressed with copper bar, and the skeleton is surrounded in magnetic core.
Further, insulating layer is surrounded by outside the armature winding.The copper bar is centered around outside armature winding, with armature winding
Between there are gaps.It is fixed between multiple transformers in printed board that there are gaps.Between transformer copper bar arranged side by side
There are gaps.
It is series connection between the copper bar of the transformer.
It is an advantage of the invention that：Main transformer secondary uses series system, overcomes in inverter main transformer simultaneously
Connection uses and the uneven flow phenomenon of generation, improves the reliability of main circuit；Secondary windings is formed in conjunction with printed board with copper bar,
Not only it had solved the heat dissipation difficult problem of the armature winding of transformer, but also has solved the heat dissipation problem and main transformer of secondary windings
Fixation problem；This structure is conducive to the heat dissipation of main transformer and the heat dissipation of entire inverter power circuit, improves inverter
The reliability of circuit.
Detailed description of the invention
Fig. 1 is the circuit diagram of the multiple transformer composition main transformers of inverter in the prior art.
Fig. 2 is circuit diagram of the invention.
Fig. 3 is the structural schematic diagram of two transformer composition main transformers of the embodiment of the present invention.
Fig. 4 is the A of Fig. 3 to sectional view.
Present invention will be further explained below with reference to the attached drawings and examples.
The present invention is using another main transformer connection type.The armature winding A of multiple transformers is mutually in parallel, secondly
It is exported after grade windings in series as secondary B, as shown in Figure 2.
As shown in figures 3 and 4, transformer 1 includes armature winding 2, secondary windings and magnetic core 3, and the armature winding 2 is using paint
Envelope curve is wound on skeleton 4, and skeleton 4 is fixed in printed board 5；It is printed with conducting wire in the printed board 5, is welded in printed board 5
Copper bar 6, copper bar 6 are electrically connected with the conducting wire in printed board 5, collectively form the secondary windings of transformer 1；3 sets of magnetic core outside copper bar 6
It encloses, is compressed with copper bar 6, the skeleton 4 is surrounded in magnetic core 3.Magnetic core 3 is that the docking of upper and lower two E-type magnetic cores is got up, and magnetic core will
Winding is surrounded.
Insulating layer 7 is surrounded by outside the armature winding 2.Copper bar 6 is centered around outside armature winding 2, between armature winding 2 there are
Gap.It is series connection between the copper bar 6 of transformer 1.As shown in figure 4, copper bar 6 is welded by bump 9 and 5 reverse side of printed board.
What multiple transformers 1 arranged is fixed in printed board 5, and there are gaps between transformer 1.Time of final main transformer
Grade terminal 1-2 is drawn from printed board 5, and the enameled wire exit 1-1 of the armature winding 2 of each transformer 1 is connected in parallel shape
At the primary terminals of main transformer.Mounting hole 8, the fixed installation for main transformer are set in printed board 5.
Carry out analytic explanation in terms of three below.
1. two transformers 1 of inverter are used in combination, using primary parallel secondary tandem mode, its advantage is that：
Since secondary uses series system, it ensure that the electric current for flowing through secondary transformer is equal, but also in main transformer primary
Electric current is the same.In this way, thoroughly overcome main transformer in inverter it is used in parallel and generate uneven flow phenomenon, improve
The reliability of main circuit.
2. the secondary of main transformer is with copper bar 6 since main transformer uses primary parallel, secondary tandem open coiling
It is combined with printed board 5 and constitutes secondary windings, and have a wider gap between concatenated two copper bars 6, copper bar 5 and be not
Tightly around on armature winding 2, the conducting wire that printed board 5 not only can be used as coil is used, but also can be used as fixed transformer 1, is both solved in this way
Determined transformer armature winding 2 heat dissipation difficult problem, and solve the heat dissipation problem and main transformer of secondary windings
Fixation problem.
3. main transformer line packet be composed of enameled wire, copper bar 6, printed board 5 (usual transformer wire packet is by painting
Made of envelope curve coiling).Main transformer component is turned to by enameled wire, copper bar 6, printed board 5, is made into an independent device,
The device radiation is good, facilitates people according to the air duct in inverter, places in place, be conducive to main transformer pressure in this way
The heat dissipation of device and the heat dissipation of entire inverter power circuit, improve the reliability of inverter power circuit.
Claims (7)
1. the structure of multiple transformer composition main transformers in inverter, including multiple transformers (1), the transformer (1)
Including armature winding (2), secondary windings and magnetic core (3), it is characterized in that：The armature winding (2) of the multiple transformer (1) is mutual
Parallel connection, as secondary output after the secondary windings series connection of the multiple transformer (1).
2. the structure of multiple transformer composition main transformers in inverter as described in claim 1, characterized in that the primary
Winding (2) is wound on skeleton (4) using enameled wire, and skeleton (4) is fixed on printed board (5)；It is printed in the printed board (5)
Conducting wire is welded with copper bar (6) in printed board (5), and copper bar (6) is electrically connected with the conducting wire in printed board (5), collectively forms transformer
(1) secondary windings；Magnetic core (3) is covered in copper bar (6) periphery, is compressed with copper bar (6), and the skeleton (4) is surrounded on magnetic core (3)
It is interior.
3. the structure of multiple transformer composition main transformers in inverter as claimed in claim 2, characterized in that the primary
Insulating layer (7) are surrounded by outside winding (2).
4. the structure of multiple transformer composition main transformers in inverter as claimed in claim 2, characterized in that the copper bar
(6) it is centered around armature winding (2) outside, there are gaps between armature winding (2).
5. the structure of multiple transformer composition main transformers in inverter as claimed in claim 2, characterized in that be fixed on print
There are gaps between multiple transformers (1) in making sheet (5).
6. the structure of multiple transformer composition main transformers in inverter as claimed in claim 2, characterized in that the transformation
There are gaps between device (1) copper bar (6) arranged side by side.
7. the structure of multiple transformer composition main transformers in inverter as claimed in claim 2, characterized in that the transformation
It is series connection between the copper bar (6) of device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655157.6A CN108831712A (en) | 2018-06-23 | 2018-06-23 | The structure of multiple transformer composition main transformers in inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655157.6A CN108831712A (en) | 2018-06-23 | 2018-06-23 | The structure of multiple transformer composition main transformers in inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108831712A true CN108831712A (en) | 2018-11-16 |
Family
ID=64138051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810655157.6A Withdrawn CN108831712A (en) | 2018-06-23 | 2018-06-23 | The structure of multiple transformer composition main transformers in inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108831712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188129A (en) * | 2021-11-18 | 2022-03-15 | 北京卫星制造厂有限公司 | Transformer and preparation method thereof |
-
2018
- 2018-06-23 CN CN201810655157.6A patent/CN108831712A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188129A (en) * | 2021-11-18 | 2022-03-15 | 北京卫星制造厂有限公司 | Transformer and preparation method thereof |
| CN114188129B (en) * | 2021-11-18 | 2024-05-28 | 北京卫星制造厂有限公司 | Transformer and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181116 |
|
| WW01 | Invention patent application withdrawn after publication |