CN201788782U - High-frequency transformer - Google Patents
High-frequency transformer Download PDFInfo
- Publication number
- CN201788782U CN201788782U CN2010202328164U CN201020232816U CN201788782U CN 201788782 U CN201788782 U CN 201788782U CN 2010202328164 U CN2010202328164 U CN 2010202328164U CN 201020232816 U CN201020232816 U CN 201020232816U CN 201788782 U CN201788782 U CN 201788782U
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- epoxy
- folder
- iron core
- insulation guiding
- winding
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Abstract
The utility model discloses a high-frequency transformer. A primary winding and a secondary winding are wound in grooves of epoxy frames, are arranged on the whole periphery of a microcrystalline alloy core at identical intervals and are formed by parallel and cross winding of double wires, two epoxy frames are respectively arranged at the upper end and the lower end of the microcrystalline alloy core in parallel, the centers of the epoxy frames are concentric with the center of the microcrystalline alloy core, the primary winding and the secondary winding are wound in the inner grooves and the outer grooves of the epoxy frames along the inner surface and the outer surface of the microcrystalline alloy core, a polyurethane rubber press block is arranged between the microcrystalline alloy core and an upper insulation guide clamping component and between the microcrystalline alloy core and a lower insulation guide clamping component, and a stainless steel nut is screwed at the end of an epoxy pull rod to tighten the upper insulation guide clamping component and the lower insulation guide clamping component, thereby forming a firm structure. The high-frequency transformer has the advantages of compact structure, high reliability, low leakage inductance and low additional loss, and solves the problems that the leakage inductance of the large-capacity high-frequency transformer is high and the primary winding and the secondary winding can not be wound easily.
Description
Technical field
The utility model relates to the transformer technology field, more specifically relates to a kind of high frequency transformer, and it is applicable to big capacity Switching Power Supply output transformer.
Background technology
In big capacity high frequency switch power, adopt high frequency transformer to be used for electrical isolation and output impedance coupling usually.The performance of high frequency transformer to the global index of Switching Power Supply play a part to cause close important.The coil winding form of high frequency transformer mostly is former limit winding and secondary winding layering arranged crosswise at present.The shortcoming of the high frequency transformer of said structure is that former secondary winding leakage inductance is bigger, and the peak voltage that is produced by leakage inductance can make the high frequency ripple of output direct current bigger.Leakage inductance can produce eddy current loss on the metal material around the high frequency transformer, reduce the operating efficiency of high frequency transformer.
Summary of the invention
The purpose of this utility model is to be to provide a kind of high frequency transformer, compact conformation, reliability height, the high frequency transformer that leakage inductance is little, supplementary load loss are little, process consistency is good.It is bigger to have solved big capacity high frequency transformer leakage inductance, former secondary winding technique difficulty, the problem of winding physical dimension, electric parameter consistency difference.
In order to realize above-mentioned purpose, the utility model adopts following technical measures:
A kind of high frequency transformer, it by epoxy skeleton, Polyurethane rubber press, epoxy pull bar, go up insulation guiding folder, microcrystallizing alloy iron core, the folder of insulation guiding down, former limit winding, secondary winding, insulation wire-fixed clip and form.Its annexation is: former limit winding and secondary winding technique are in the groove of epoxy skeleton, whole circumference equal intervals at the microcrystallizing alloy iron core is arranged, former limit winding and secondary winding adopt two-wire and around, intersect mutually, form the form of " former limit "-" secondary "-" former limit "-" secondary ".Two epoxy skeletons are arranged in parallel in the top and bottom of microcrystallizing alloy iron core respectively, the center of circle of epoxy skeleton is concentric with the center of circle of microcrystallizing alloy iron core, former limit winding and secondary winding are wound in the inside and outside groove of epoxy skeleton along the surfaces externally and internally of microcrystallizing alloy iron core, microcrystallizing alloy unshakable in one's determination with under the insulation guiding folder insulation lead and put into the Polyurethane rubber press between the folder, four epoxy pull bars are passed the fixing hole of insulation guiding folder and down insulation guiding folder, screw in the stainless steel nut in the end of epoxy pull bar and tighten up insulation guiding folder and down insulation guiding folder, form a robust structure.The overall dimension of this epoxy skeleton is the interior external diameter according to the microcrystallizing alloy iron core, and the external diameter of winding conducting wire is determined.The corresponding whole circumference of the groove of epoxy skeleton inside and outside circle is divided into m part, and interior round recessed differs with outer round recessed
Angle.The width of groove is consistent with former auxiliary winding lead overall width side by side, and the degree of depth of groove is consistent with the external diameter of former auxiliary winding lead.
Be lined with the Polyurethane rubber press between the unshakable in one's determination and last insulation guiding of described microcrystallizing alloy folder, the down insulation guiding folder, make microcrystallizing alloy unshakable in one's determination fixing by the epoxy pull bar.
Describedly go up the upper and lower that insulation guiding folder, the folder of insulation guiding down are arranged in parallel in the microcrystallizing alloy iron core, microcrystallizing alloy unshakable in one's determination with under the insulation guiding folder insulation lead and put into the Polyurethane rubber press between the folder.
Fixing insulation folder, the epoxy pull bar form of adopting of the iron core of described high frequency transformer.
The utility model compared with prior art has the following advantages and effect:
The high-frequency transformer coils coiling of said structure is convenient, and former secondary leakage inductance is little, but on the output transformer of extensive use and high power switching power supply.Can reach compact conformation, reliability height, leakage inductance is little, supplementary load loss are little, process consistency is good requirement fully.
Description of drawings
Fig. 1 is a kind of high frequency transformer structural representation
Fig. 2 is the layout plan of a kind of winding on the epoxy skeleton
Fig. 3 is a kind of epoxy skeleton profile schematic diagram
Wherein: epoxy skeleton 1, Polyurethane rubber press 2, epoxy pull bar 3, upward insulation guiding folder 4, microcrystallizing alloy iron core 5, following folder 6, former limit winding 7, secondary winding 8, the insulation wire-fixed clip 9 of leading that insulate.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
A kind of high frequency transformer, it by epoxy skeleton 1, Polyurethane rubber press 2, epoxy pull bar 3, go up insulation guiding folder 4, microcrystallizing alloy iron core 5, the folder 6 of insulation guiding down, former limit winding 7, secondary winding 8, insulation wire-fixed clip 9 and form.
Its annexation is: former limit winding 7 is wound in the groove of epoxy skeleton 1 with secondary winding 8, whole circumference equal intervals at microcrystallizing alloy iron core 5 is arranged, former limit winding 7 and secondary winding 8 adopt two-wires and around, intersect mutually, form the form of former limit-secondary-former limit-secondary.Two epoxy skeletons 1 are arranged in parallel in the upper surface and the lower surface of microcrystallizing alloy iron core 5 respectively.The center of circle of epoxy skeleton 1 is concentric with the center of circle of microcrystallizing alloy iron core 5.Former limit winding 7, secondary winding 8 are arranged in juxtaposition, and turn back be passed down through the circular window of microcrystallizing alloy iron core 5 along the inner groovy of epoxy skeleton 1 after, are wound in the outer groove of epoxy skeleton 1 along the outer surface of microcrystallizing alloy iron core 5.Each circle of winding is all according to this order coiling.After finishing, coiling fixes the lead of former limit windings 7, secondary winding 8 with insulation wire-fixed clip 9.To avoid winding loosening.The iron core that winds coil is placed down on the insulation guiding folder 6, between microcrystallizing alloy unshakable in one's determination 5 and down insulation guiding folder 6, put into Polyurethane rubber press 2, last insulation guiding folder 4 is arranged in parallel in the top of microcrystallizing alloy iron core 5, microcrystallizing alloy unshakable in one's determination 5 with on insulation lead and put into Polyurethane rubber press 2 between the folder 4.Four epoxy pull bars 3 are passed the fixing hole of insulation guiding folder 4 and down insulation guiding folder 6.Screw in the stainless steel nut in the end of epoxy pull bar 3 and tighten up insulation guiding folder 4 and down insulation guiding folder 6, promptly form a robust structure.
Be lined with Polyurethane rubber press 2 between described microcrystallizing alloy unshakable in one's determination 5 and last insulation guiding folder 4, the down insulation guiding folder 6, make microcrystallizing alloy unshakable in one's determination 5 fixing by epoxy pull bar 3.
Describedly go up the upper and lower that insulation guiding folder 4, the folder 6 of insulation guiding down are arranged in parallel in microcrystallizing alloy iron core 5, microcrystallizing alloy unshakable in one's determination 5 with on 4 times insulation of insulation guiding folder lead and put into Polyurethane rubber press 2 between the folder 6.
The high-frequency transformer coils coiling of said structure is convenient, and former secondary leakage inductance is little, but on the output transformer of extensive use and high power switching power supply.
Claims (2)
1. high frequency transformer, it is by epoxy skeleton (1), epoxy pull bar (3), last insulation guiding folder (4), microcrystallizing alloy iron core (5), following insulation guiding folder (6), former limit winding (7), secondary winding (8) is formed, it is characterized in that: former limit winding (7) is wound in the groove of epoxy skeleton (1) with secondary winding (8), whole circumference equal intervals at microcrystallizing alloy iron core (5) is arranged, former limit winding (7) and secondary winding (8) adopt two-wire and around, intersect mutually, two epoxy skeletons (1) are arranged in parallel in the top and bottom of microcrystallizing alloy iron core (5) respectively, the center of circle of epoxy skeleton (1) is concentric with the center of circle of microcrystallizing alloy iron core (5), former limit winding (7) is wound in the inside and outside groove of epoxy skeleton (1) with the surfaces externally and internally of secondary winding (8) along microcrystallizing alloy iron core (5), between microcrystallizing alloy iron core (5) and last insulation guiding folder (4) down insulation guiding folder (6), put into Polyurethane rubber press (2), four epoxy pull bars (3) are passed the fixing hole of insulation guiding folder (4) and the folder of insulation guiding down (6), screw in the stainless steel nut in the end of epoxy pull bar (3) and tighten up insulation guiding folder (4) and the folder of insulation guiding down (6) formation one robust structure.
2. a kind of high frequency transformer according to claim 1 is describedly gone up the upper and lower that insulation guiding folder (4), the folder of insulation guiding down (6) are arranged in parallel in microcrystallizing alloy iron core (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202328164U CN201788782U (en) | 2010-06-13 | 2010-06-13 | High-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202328164U CN201788782U (en) | 2010-06-13 | 2010-06-13 | High-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788782U true CN201788782U (en) | 2011-04-06 |
Family
ID=43820739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202328164U Expired - Fee Related CN201788782U (en) | 2010-06-13 | 2010-06-13 | High-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788782U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698043A (en) * | 2019-02-15 | 2019-04-30 | 佛山市顺德区伊戈尔电力科技有限公司 | The conducting wire of for transformer winding and a kind of transformer |
| CN111834099A (en) * | 2019-04-22 | 2020-10-27 | 深圳市德光变压器有限公司 | Fixing structure and fixing method of transformer iron core |
| JP2023529044A (en) * | 2021-05-07 | 2023-07-07 | 浙江江山変圧器股▲ふん▼有限公司 | Dry-type transformer cast and molded using polyurethane resin and its processing method |
-
2010
- 2010-06-13 CN CN2010202328164U patent/CN201788782U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698043A (en) * | 2019-02-15 | 2019-04-30 | 佛山市顺德区伊戈尔电力科技有限公司 | The conducting wire of for transformer winding and a kind of transformer |
| CN109698043B (en) * | 2019-02-15 | 2024-03-12 | 广东伊戈尔智能电器有限公司 | Wire for transformer winding and transformer |
| CN111834099A (en) * | 2019-04-22 | 2020-10-27 | 深圳市德光变压器有限公司 | Fixing structure and fixing method of transformer iron core |
| CN111834099B (en) * | 2019-04-22 | 2023-07-04 | 深圳市德光变压器有限公司 | Fixing structure and fixing method of transformer iron core |
| JP2023529044A (en) * | 2021-05-07 | 2023-07-07 | 浙江江山変圧器股▲ふん▼有限公司 | Dry-type transformer cast and molded using polyurethane resin and its processing method |
| JP7377371B2 (en) | 2021-05-07 | 2023-11-09 | 浙江江山変圧器股▲ふん▼有限公司 | Processing method for dry type transformer cast using polyurethane resin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20110613 |