CN108039276B - Winding method of civil aviation multi-winding isolation transformer - Google Patents
Winding method of civil aviation multi-winding isolation transformer Download PDFInfo
- Publication number
- CN108039276B CN108039276B CN201711095538.5A CN201711095538A CN108039276B CN 108039276 B CN108039276 B CN 108039276B CN 201711095538 A CN201711095538 A CN 201711095538A CN 108039276 B CN108039276 B CN 108039276B
- Authority
- CN
- China
- Prior art keywords
- winding
- layer
- isolation transformer
- copper foil
- transformer
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/061—Winding flat conductive wires or sheets
Abstract
The invention discloses a winding method of a civil aviation multi-winding isolation transformer, and belongs to the technical field of civil aviation transformer devices. Winding a copper foil winding I on the outer side of a multi-winding transformer framework to serve as a first layer of winding of the multi-winding isolation transformer; the width of the copper foil winding II is smaller than that of the copper foil winding I, and the copper foil winding II is wound on the outer side of the first layer of winding of the multi-winding isolation transformer; and the third copper foil winding is wound on the outer side of the second layer of winding of the multi-winding isolation transformer to complete winding of the coil winding. The secondary side triangular winding of the multi-winding isolation transformer is arranged on the first layer, the primary side winding is arranged on the second layer, and the secondary side star-shaped winding is arranged on the third layer.
Description
Technical Field
The invention discloses a winding method of a civil aviation multi-winding isolation transformer, and belongs to the technical field of civil aviation transformer devices.
Background
At present, in order to balance the current output by each group of rectifier bridges, a method of adding a balance reactor is adopted in the aviation transformer rectifier, so that the weight of the whole machine is increased.
At present, the cooling method of the high-power voltage transformation rectifier for aviation comprises liquid cooling and forced air cooling. For the transformer rectifier using forced air cooling, it is required to operate continuously for a period of time to ensure the power supply of the load under the condition of cooling loss (fan does not rotate), and for the transformer of the main heating element in the transformer rectifier, the heating value of the transformer is reduced by adopting the method of reducing the current density of the winding. This increases the overall weight. Problems existing in the prior art: under the action of no balance reactor, the output current of each group of rectifier bridges has large unbalance, and the balance reactor can cause the whole transformer rectifier to be heavy. For aviation onboard transformer rectifiers, it is required to operate continuously for a period of time under the condition of loss of cooling (without forced ventilation) to ensure the power supply of a load, which requires that the winding current density on a key component isolation transformer in the transformer rectifier is low, but the weight of the transformer rectifier is increased.
Disclosure of Invention
The purpose of the invention is as follows: the invention changes the winding method of the multi-winding isolation transformer in the transformer rectifier, thereby ensuring that the output current of each group of rectifier bridges is more balanced under the condition of no balance reactor of the transformer rectifier device, and improving the heat dissipation condition of the transformer winding under the condition of not reducing the current density of the multi-winding isolation transformer winding.
The technical scheme of the invention is as follows: a winding method of a civil aviation multi-winding isolation transformer comprises the following steps:
1) winding the first copper foil winding on the outer side of the multi-winding transformer framework to serve as a first layer of winding of the multi-winding isolation transformer; the width of the copper foil winding II is smaller than that of the copper foil winding I, and the copper foil winding II is wound on the outer side of the first layer of winding of the multi-winding isolation transformer; the width of the copper foil winding III is smaller than that of the copper foil winding II, and the copper foil winding III is wound on the outer side of the second layer of winding of the multi-winding isolation transformer to complete winding of the coil winding;
2) winding three groups of coil windings according to the method in the step 1, wherein the first layer of the three groups of coil windings are connected end to serve as a secondary side triangular winding of the multi-winding isolation transformer; the tail ends of the second layer of windings of the three groups of coil windings are connected to be used as a primary side star winding of the multi-winding isolation transformer; the tail ends of the third layer of windings of the three groups of coil windings are connected to be used as a secondary side star winding of the multi-winding isolation transformer.
The invention has the advantages that: the secondary side triangular winding of the multi-winding isolation transformer is arranged on the first layer, the primary side winding is arranged on the second layer, and the secondary side star winding is arranged on the third layer. By the method of decreasing the width of each layer of winding (copper foil winding) of the multi-winding isolation transformer, each layer of winding is exposed outside, so that the self heat dissipation condition of the multi-winding isolation transformer can be improved, and the aim of reducing the weight of a product is fulfilled.
Drawings
FIG. 1 front view of a multi-winding isolation transformer 1
FIG. 2 front view of a multi-winding isolation transformer 2
FIG. 3 front view of a multi-winding isolation transformer 3
FIG. 4 top view of a multi-winding isolation transformer
Wherein, 1 is a transformer iron core; 2, a first layer of windings, namely secondary side triangular windings; a second layer of winding 3 is a primary winding, a triangle or star winding; 4, a third layer of winding, namely a secondary side star winding; and 5 is a transformer framework.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A winding method of a civil aviation multi-winding isolation transformer comprises the following steps:
1) winding the first copper foil winding on the outer side of the multi-winding transformer framework to serve as a first layer of winding of the multi-winding isolation transformer; the width of the copper foil winding II is smaller than that of the copper foil winding I, and the copper foil winding II is wound on the outer side of the first layer of winding of the multi-winding isolation transformer; the width of the copper foil winding III is smaller than that of the copper foil winding II, and the copper foil winding III is wound on the outer side of the second layer of winding of the multi-winding isolation transformer to complete winding of the coil winding;
2) winding three groups of coil windings according to the method in the step 1, wherein the first layer of the three groups of coil windings are connected end to serve as a secondary side triangular winding of the multi-winding isolation transformer; the tail ends of the second layer of windings of the three groups of coil windings are connected to be used as a primary side star winding of the multi-winding isolation transformer; the tail ends of the third layer of windings of the three groups of coil windings are connected to be used as a secondary side star winding of the multi-winding isolation transformer.
The invention provides a winding method of a civil aviation multi-winding isolation transformer.
The transformer rectifier aims to solve the problem that the output current of each group of rectifier bridges is very unbalanced under the condition that a balance reactor is not arranged in a civil aviation transformer rectifier device, and the weight of the whole transformer rectifier is increased for reducing the current density of a multi-winding isolation transformer winding in the transformer rectifier under the condition of cooling loss. The invention adopts a new technical scheme that:
the winding of the multi-winding isolation transformer in the airborne twelve-pulse voltage transformation rectifier is divided into 3 layers of windings, a primary winding and two secondary windings. The primary side is a star winding or a triangular winding, and the two secondary windings are respectively a star winding and a triangular winding.
A multi-winding isolation transformer in an airborne twelve-pulse voltage transformation rectifier is a working mode of outputting low-voltage large current, and in order to reduce copper loss and temperature rise and reduce high-frequency interference generated when a primary side is coupled to a magnetic core of a transformer, an arrangement mode that two sets of secondary windings clamp a primary side winding is adopted.
In order to make the output currents of two groups of rectifier bridges in the twelve-pulse transformer rectifier more balanced, the impedances of two sets of secondary windings of a multi-winding isolation transformer in the transformer rectifier are matched. The number of turns of the secondary delta winding is the number of turns of the secondary star winding for a multi-winding isolation transformer
And the secondary side triangular winding is arranged on the first layer and is close to the innermost layer of the multi-winding transformer framework, so that the winding perimeter of the winding can be effectively reduced, and the effect of reducing impedance is achieved. The primary winding is placed on the second layer for winding, and the star-shaped winding is placed on the third layer for winding, so that the winding perimeter of the winding can be increased, and the purpose of increasing impedance is achieved. Therefore, the impedance of the two sets of secondary windings is matched, and the purpose of relatively balancing the output currents of the two sets of rectifier bridges in the twelve-pulse voltage transformation rectifier is achieved.
Aiming at the working mode that the multi-winding isolation transformer outputs low-voltage large current, the windings are wound by copper foil, and the current density of each layer of windings can take the same value. The width value of the first layer of winding copper foil is larger than that of the second layer of winding, and the width of the second layer of winding copper foil is larger than that of the third layer of winding, so that the multi-winding isolation transformer obtains a better heat dissipation condition under the condition of refrigeration, and the purpose of improving the power density of the multi-winding isolation transformer is achieved.
Fig. 1 is a front view 1 of a multi-winding isolation transformer, wherein the width of winding (copper foil winding) layers is gradually reduced from inside to outside, the lower side of each layer of winding is aligned, and each layer of upper side is provided with a place exposed outside. Fig. 2 is a front view 2 of the multi-winding isolation transformer, the width of the winding (copper foil winding) layers is gradually reduced from inside to outside, the upper side of each layer of winding is aligned, and each layer of winding at the lower side is exposed outside. Fig. 3 is a front view 3 of the multi-winding isolation transformer, the width of each winding (copper foil winding) layer is gradually reduced from inside to outside, and the upper side and the lower side of each winding layer are exposed outside.
Fig. 4 is a top view of the multi-winding isolation transformer, and fig. 2 shows a first layer of windings, namely secondary side triangular windings, which are tightly attached to the transformer bobbin 5. After the first layer is wound, the second layer, namely the primary winding, is wound. And after the second layer of winding is wound, a third layer of winding, namely a secondary side star winding, is wound.
Examples
The secondary side delta winding of the multi-winding isolation transformer is arranged on the first layer (clinging to the transformer framework), the primary side winding is arranged on the second layer, the primary side winding is a star winding or a delta winding, and the secondary side star winding is arranged on the third layer, as shown in fig. 4.
The width of the winding (copper foil winding) layer of the multi-winding isolation transformer is gradually reduced from inside to outside, the lower side of the winding is aligned, and each layer on the upper side is exposed outside, as shown in fig. 1.
The width of the winding (copper foil winding) layer of the multi-winding isolation transformer is gradually reduced from inside to outside, the upper sides of the winding layers are aligned, and each winding layer at the lower side is exposed outside, as shown in fig. 2.
The width of the winding (copper foil winding) layer of the multi-winding isolation transformer is gradually reduced from inside to outside, and the upper side and the lower side of each layer of winding are exposed outside, as shown in fig. 3.
Claims (1)
1. A winding method of a civil aviation multi-winding isolation transformer is characterized by comprising the following steps:
1) winding the first copper foil winding on the outer side of the multi-winding transformer framework to serve as a first layer of winding of the multi-winding isolation transformer; the width of the copper foil winding II is smaller than that of the copper foil winding I, and the copper foil winding II is wound on the outer side of the first layer of winding of the multi-winding isolation transformer; the width of the copper foil winding III is smaller than that of the copper foil winding II, and the copper foil winding III is wound on the outer side of the second layer of winding of the multi-winding isolation transformer to complete winding of the coil winding;
2) winding three groups of coil windings according to the method in the step 1, wherein the first layer of the three groups of coil windings are connected end to serve as a secondary side triangular winding of the multi-winding isolation transformer; the tail ends of the second layer of windings of the three groups of coil windings are connected to be used as a primary side star winding of the multi-winding isolation transformer; the tail ends of the third layer of windings of the three groups of coil windings are connected to be used as a secondary side star winding of the multi-winding isolation transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711095538.5A CN108039276B (en) | 2017-11-08 | 2017-11-08 | Winding method of civil aviation multi-winding isolation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711095538.5A CN108039276B (en) | 2017-11-08 | 2017-11-08 | Winding method of civil aviation multi-winding isolation transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108039276A CN108039276A (en) | 2018-05-15 |
| CN108039276B true CN108039276B (en) | 2020-04-03 |
Family
ID=62093349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711095538.5A Active CN108039276B (en) | 2017-11-08 | 2017-11-08 | Winding method of civil aviation multi-winding isolation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108039276B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007007130U1 (en) * | 2007-05-18 | 2007-08-16 | Sunrise Power Transformers Gmbh | Amorphous metal alloy and aluminum foils used transformers |
| CN201229838Y (en) * | 2008-07-22 | 2009-04-29 | 常州特种变压器有限公司 | Dry type rectifier transformer |
| CN102290230A (en) * | 2011-04-28 | 2011-12-21 | 上海固缘电力科技有限公司 | Winding method for three-dimensional amorphous alloy transformer core |
| CN103560674A (en) * | 2013-10-15 | 2014-02-05 | 南京航空航天大学 | Three-phase three-level LLC resonance direct current converter and control method of three-phase three-level LLC resonance direct current converter |
| CN206584804U (en) * | 2017-02-22 | 2017-10-24 | 戴芬 | A kind of triangle three-dimensional reel iron core transformer iron core and coil |
-
2017
- 2017-11-08 CN CN201711095538.5A patent/CN108039276B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007007130U1 (en) * | 2007-05-18 | 2007-08-16 | Sunrise Power Transformers Gmbh | Amorphous metal alloy and aluminum foils used transformers |
| CN201229838Y (en) * | 2008-07-22 | 2009-04-29 | 常州特种变压器有限公司 | Dry type rectifier transformer |
| CN102290230A (en) * | 2011-04-28 | 2011-12-21 | 上海固缘电力科技有限公司 | Winding method for three-dimensional amorphous alloy transformer core |
| CN103560674A (en) * | 2013-10-15 | 2014-02-05 | 南京航空航天大学 | Three-phase three-level LLC resonance direct current converter and control method of three-phase three-level LLC resonance direct current converter |
| CN206584804U (en) * | 2017-02-22 | 2017-10-24 | 戴芬 | A kind of triangle three-dimensional reel iron core transformer iron core and coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108039276A (en) | 2018-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB201111727D0 (en) | Transformer for an inverter system and an inverter system comprising the transformer | |
| CN203277071U (en) | Three-phase twelve-pulse-wave rectifier transformer structure | |
| CN103730237A (en) | Multi-winding water-cooled inductor | |
| CN108039276B (en) | Winding method of civil aviation multi-winding isolation transformer | |
| CN204596607U (en) | Flat printed substrate welded type power transformer | |
| CN203850132U (en) | Amorphous alloy transformer coil | |
| CN208478093U (en) | The transformer of winding construction | |
| CN206471214U (en) | A kind of multipath magnetic circuit phase-shifting transformer | |
| CN204375532U (en) | A kind of replaceable insulation cushion transformer | |
| US20140085757A1 (en) | Surge blocking inductor | |
| De et al. | Achieving the desired transformer leakage inductance necessary in DC-DC converters for energy storage applications | |
| CN206451584U (en) | A kind of secondary terminals arrangement of the dry-type rectifier transformer of frequency control | |
| CN102881412A (en) | Energy-generation transformer | |
| CN202650806U (en) | Dry type transformer coil and iron core assembling structure | |
| CN206250028U (en) | A kind of integrated high frequency transformer of single-phase high-power magnetic | |
| CN204178895U (en) | A kind of low-voltage coil structure of transformer | |
| CN204348488U (en) | The transformer framework of electricity economizer for three phase balance system | |
| CN204632542U (en) | high-voltage dry transformer | |
| CN204270818U (en) | Superhigh radiating iron core | |
| WO2016070393A1 (en) | Cooling method and apparatus for forced-directed cooling mixing type transformer winding | |
| CN204270838U (en) | There is the single-phase transformer loop construction of symmetrical iron core | |
| CN103824688B (en) | Filter transformer with three phases changed into single phase | |
| CN209312559U (en) | Transformer | |
| CN208570277U (en) | Oil immersed type high frequency transformer | |
| CN205282217U (en) | High -frequency transformer |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |