CN103680880A - High-power high-frequency transformer - Google Patents
High-power high-frequency transformer Download PDFInfo
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- CN103680880A CN103680880A CN201210349237.1A CN201210349237A CN103680880A CN 103680880 A CN103680880 A CN 103680880A CN 201210349237 A CN201210349237 A CN 201210349237A CN 103680880 A CN103680880 A CN 103680880A
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- transformer
- circles
- secondary coil
- magnetic core
- coiling
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Abstract
The invention provides a high-power high-frequency transformer. The transformer comprises a ferrite annular magnetic core. Insulating resins are sprayed on the surface of the magnetic core. A primary coil is made of 6 mm<2> multi-strand varnished wires, and the outsides of the wires are protected by polyester film, and the primary coil is wound for 24 turns. A secondary coil is made of 25 mm<2> multi-strand soft copper stranded wires, and the outsides of the wires are protected by high-temperature polyvinyl chloride silicone fiberglass sleevings. The secondary coil is wound for 2 turns, and the center is tapped. The transformer has the advantages that the transformer actual consumption is low, the transformer temperature rise is small during full-load outputting of each channel, natural air cooling is achieved, and the design of a cooling system is greatly simplified.
Description
Technical field
The present invention relates to a kind of transformer, especially relate to a kind of high-power high-frequency transformer.
Background technology
Domestic ultracrystallite material is subject to the restriction of its production technology at present, crystallite band in process of production furnace temperature is difficult to evenly, the consistency of material has comparatively significantly difference, will bring harmful effect like this for the consistency of high power switching power supply inside multi-channel parallel structure.If adopt the ultracrystallite material price of international import very high again.Switching Power Supply has very strong nonstandard property in addition, and personalization is very strong, and product is difficult to the unified production of shaping.Amorphous or the ultracrystallite magnetic core of the selection of material consistency shortcoming carry out coiling high frequency transformer, the topological structure of transformer is restricted, be unfavorable for realizing on the one hand the diversity of product, the power of single transformer carrying is large on the other hand, the electric current that winding passes through is large, select wire diameter thick, increased the coiling difficulty of transformer.Some factories produce family's employing copper pipe as the winding of secondary large electric current, and the technique of coiling copper pipe is more more complex than coiling copper cash, and copper pipe inside will lead to cooling circulating water, and this has increased again the design difficulty of cooling system.
Summary of the invention
The object of this invention is to provide a kind of simple in structure, high-power high-frequency transformer that intensity is really up to the mark, safe and reliable.
Technical scheme of the present invention is:
A high-power high-frequency transformer, comprises ferritic ring-shaped magnetic core, magnetic core surface spraying insulating resin, and primary coil adopts 6mm
2multiply enamelled wire, line protects polyester film outward, coiling 24 circles, secondary coil adopts many 25mm
2multiply annealed copper strand wire, protects the yellow cured pipe of high temperature outward, coiling 2 circles, centre cap.
The transformer group being formed by high-power high-frequency transformer, described transformer group comprises some transformers, and every transformer is around 24 circles, and the series connection of the primary coil of every two transformers becomes an elementary group, and a plurality of elementary groups are connected in parallel; Secondary coil coiling 2 circles, the twisted wire that secondary coil adopts passes from some transformer centers, and negative level copper bar arranges to realize centre cap as conversion terminal.
Advantage and good effect that the present invention has are:
Owing to adopting technique scheme, a plurality of transformers combine neatly, to realize the large gradient of power, cross over, and different DC processes parameters output requirement.The general secondary current of transformer of Switching Power Supply is larger, and secondary winding transformer wire diameter is thicker, adopts a plurality of transformer connection in series-parallel, secondary, also can change flexibly output voltage according to customer requirement be a circle in the situation that.Transformer active loss is little, and during the fully loaded output in Mei road, transformer temperature rise is little, has realized natural air cooledly, has greatly simplified the design of cooling system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure:
1, magnetic core 2, primary coil 3, secondary coil
Embodiment
Below in conjunction with the drawings and the specific embodiments, the invention will be further described.
As shown in Figure 1, the present invention includes 10 transformers that formed by ferritic ring-shaped magnetic core 1, magnetic core 1 surface spraying insulating resin, primary coil 2 adopts 6mm
2multiply enamelled wire, line protects polyester film outward, and secondary coil 3 adopts 16 25mm
2multiply annealed copper strand wire, protects the yellow cured pipe of high temperature outward.Every transformer 2 is around 24 circles, and primary coil 2 series connection of every two transformers become an elementary group, and 5 elementary groups are connected in parallel; Secondary coil 3 coiling 2 circles, 8 twisted wires form a circle, and 16 twisted wires pass from 10 transformer centers, and negative level copper bar arranges to realize centre cap as conversion terminal.
In use, transformer active loss is little, and during the fully loaded output in Mei road, transformer temperature rise is little, has realized natural air cooledly, has greatly simplified the design of cooling system.
Above execution mode has been described in detail the present invention, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the present patent application scope and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (2)
1. a high-power high-frequency transformer, is characterized in that: comprise ferritic ring-shaped magnetic core (1), magnetic core (1) surface spraying insulating resin, primary coil (2) employing 6mm
2multiply enamelled wire, line protects polyester film outward, coiling 24 circles, secondary coil (3) adopts many 25mm
2multiply annealed copper strand wire, protects the yellow cured pipe of high temperature outward, coiling 2 circles, centre cap.
2. the transformer group being formed by high-power high-frequency transformer claimed in claim 1, it is characterized in that: described transformer group comprises some transformers, every transformer (2) is around 24 circles, the primary coil of every two transformers (2) series connection becomes an elementary group, and a plurality of elementary groups are connected in parallel; Secondary coil (3) coiling 2 circles, the twisted wire that secondary coil adopts passes from some transformer centers, and negative level copper bar arranges to realize centre cap as conversion terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210349237.1A CN103680880A (en) | 2012-09-18 | 2012-09-18 | High-power high-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210349237.1A CN103680880A (en) | 2012-09-18 | 2012-09-18 | High-power high-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103680880A true CN103680880A (en) | 2014-03-26 |
Family
ID=50318147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210349237.1A Pending CN103680880A (en) | 2012-09-18 | 2012-09-18 | High-power high-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103680880A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599820A (en) * | 2015-01-06 | 2015-05-06 | 江苏东方四通科技股份有限公司 | Water-cooled transformer for high-power medium-high frequency power supply |
| CN105931821A (en) * | 2016-06-20 | 2016-09-07 | 华中科技大学 | Medium-high-frequency transformer capable of being used in high-temperature downhole environment and parameter acquisition method therefor |
-
2012
- 2012-09-18 CN CN201210349237.1A patent/CN103680880A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599820A (en) * | 2015-01-06 | 2015-05-06 | 江苏东方四通科技股份有限公司 | Water-cooled transformer for high-power medium-high frequency power supply |
| CN105931821A (en) * | 2016-06-20 | 2016-09-07 | 华中科技大学 | Medium-high-frequency transformer capable of being used in high-temperature downhole environment and parameter acquisition method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |