CN202940115U - Leakage inductance transformer - Google Patents
Leakage inductance transformer Download PDFInfo
- Publication number
- CN202940115U CN202940115U CN 201220599239 CN201220599239U CN202940115U CN 202940115 U CN202940115 U CN 202940115U CN 201220599239 CN201220599239 CN 201220599239 CN 201220599239 U CN201220599239 U CN 201220599239U CN 202940115 U CN202940115 U CN 202940115U
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- Prior art keywords
- leakage inductance
- transformer
- coil
- metal pieces
- primary coil
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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
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- 239000000696 magnetic material Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000011796 hollow space material Substances 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a leakage inductance transformer. The leakage inductance transformer comprises a magnetic material rod, a primary coil and a secondary coil, wherein the primary coil and the secondary coil are inside and outside wound on the magnetic material rod; and the leakage inductance transformer further comprises two metal pieces, wherein the metal pieces are respectively fixed between the primary coil and the secondary coil which are arranged on the left side and the right side, and the metal pieces are made of hollow materials. The leakage inductance transformer disclosed by the utility model solves the problems of high working temperature, larger volume and short service life of the transformer producing leakage inductance in the prior art; because the two hollow metal pieces are arranged between the two coils, when the required leakage inductance is produced, the metal pieces can be used as air passages and radiating fins of the transformer, so that the temperature of the transformer is greatly reduced; and when the same inductance is required, the number of turns of the coils can be relatively reduced, the cost of a product is further reduced, the volume of the product is reduced, and application prospects are great.
Description
Technical field
The utility model has related to a kind of transformer, and the transformer of leakage inductance characteristic is used, needed to especially a kind of high-frequency inverter.
Background technology
Transformer is the electronic building brick that often uses in various electric equipment, in order to adjust different voltage, makes it reach the scope that electrical equipment can be suitable for.Usually, the control of transformer magnetic leakage sense is seemed very important for power supply changeover device, because it will have influence on the power conversion efficiency of power supply changeover device.
The design that existing transformer produces leakage inductance normally realizes by increase air gap in magnetic material.But in this scheme, there is rim effect in magnetic material near air gap, can make near the electric conducting material excess Temperature of air gap, thereby the excess Temperature that makes magnetic material is the asymptotic Curie temperature point even, and too high temperature can make the insulating material in transformer aging, has shortened the life-span of product.And owing to there being air gap in magnetic material, need the more number of turns of coil winding when the identical inductance numerical value of needs, make the volume of product become large, and cost also can increase accordingly.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of leakage inductance transformer, reduce coupling by increasing by two distances between coil, to produce the leakage inductance that needs, reduce the temperature of two coils by the air channel of the leakage inductance production part between coil, coil winding is carefully and neatly done, the small volume of transformer.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of leakage inductance transformer, comprise bar of magnetic material, primary coil and secondary coil, be wound on described bar of magnetic material inside and outside described primary coil and secondary coil, also comprise two metalworks, described metalwork is separately fixed between the primary coil and secondary coil of the left and right sides.
Aforementioned leakage inductance transformer is characterized in that: described metalwork is hollow material.
Aforesaid leakage inductance transformer is characterized in that: comprise that also two are separately fixed at the primary coil of both sides, up and down and the metal derby between secondary coil.
Aforesaid leakage inductance transformer is characterized in that: described metalwork adopts aluminum to make.
Aforesaid leakage inductance transformer is characterized in that: described metal derby adopts aluminum to make.
The beneficial effects of the utility model are: by two hollow metalworks are set between two coils, when producing the leakage inductance that needs, can as air channel and the fin of transformer, significantly reduce the temperature of transformer; Because bar of magnetic material has formed closed magnetic circuit, can avoid because rim effect causes coil temperature too high, simultaneously when the identical inductance of needs, thereby can relatively reduce the cost that wire circle has reduced product, dwindled the volume of product, had a good application prospect.
Description of drawings
Fig. 1 is the structural representation of leakage inductance transformer of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
as shown in Figure 1, a kind of leakage inductance transformer, comprise bar of magnetic material 1, primary coil 2 and secondary coil 3, be wound on described bar of magnetic material 1 inside and outside described primary coil 2 and secondary coil 3, also comprise two metalworks 4, described metalwork 4 is separately fixed between the primary coil 2 and secondary coil 3 of the left and right sides, increased distance between two coils by metalwork 4, reduce coupling, produced the leakage inductance that transformer needs, and can be according to actual needs, select corresponding metalwork 4, regulate by the different in width of different metalworks the leakage inductance that transformer produces.
Be fixed with respectively two metal derbies 5 between the primary coil 2 of both sides, up and down and secondary coil 3, this design can not only reduce the coupling of transformer, produce the leakage inductance that needs, and can make the more smooth of outer coil coiling, the coil that coiling is completed is more carefully and neatly done, has reduced the volume of whole transformer.
Described metalwork 4 is hollow material, is that metal can not only increase the distance between coil, produces leakage inductance, can also form the air channel between coil, thereby can significantly reduce the temperature of two coils.
Described metalwork 4 and metal derby 5 are all to adopt aluminum to make, in the distance that increases between two coils, aluminum device itself also can use as a kind of fin because of its good radiating effect, increase the area of dissipation of coil, reduced the temperature of transformer.
In sum, a kind of leakage inductance transformer that the utility model provides, reduce coupling by increasing by two distances between coil, to produce the leakage inductance that needs, reduce the temperature of two coils by the air channel of the leakage inductance production part between coil, coil winding is carefully and neatly done, the small volume of transformer, also significantly reduced the temperature of transformer, reduced the cost of product, had a good application prospect.
Above demonstration and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is by appending claims and equivalent circle thereof.
Claims (5)
1. leakage inductance transformer, comprise bar of magnetic material (1), primary coil (2) and secondary coil (3), be wound on described bar of magnetic material (1) inside and outside described primary coil (2) and secondary coil (3), it is characterized in that: also comprise two metalworks (4), described metalwork (4) is separately fixed between the primary coil (2) and secondary coil (3) of the left and right sides.
2. a kind of leakage inductance transformer according to claim 1 is characterized in that: described metalwork (4) is hollow material.
3. a kind of leakage inductance transformer according to claim 1 and 2, is characterized in that: comprise that also two are separately fixed at the primary coil (2) of both sides, up and down and the metal derby (5) between secondary coil (3).
4. a kind of leakage inductance transformer according to claim 3 is characterized in that: described metalwork (4) adopts aluminum to make.
5. a kind of leakage inductance transformer according to claim 4 is characterized in that: described metal derby (5) adopts aluminum to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599239 CN202940115U (en) | 2012-11-14 | 2012-11-14 | Leakage inductance transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599239 CN202940115U (en) | 2012-11-14 | 2012-11-14 | Leakage inductance transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940115U true CN202940115U (en) | 2013-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220599239 Expired - Fee Related CN202940115U (en) | 2012-11-14 | 2012-11-14 | Leakage inductance transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107007A (en) * | 2012-11-14 | 2013-05-15 | 苏州爱知电机有限公司 | Leakage inductance transformer |
-
2012
- 2012-11-14 CN CN 201220599239 patent/CN202940115U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107007A (en) * | 2012-11-14 | 2013-05-15 | 苏州爱知电机有限公司 | Leakage inductance 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 |
Granted publication date: 20130515 Termination date: 20151114 |
|
| EXPY | Termination of patent right or utility model |