CN204390867U - A kind of high frequency transformer - Google Patents
A kind of high frequency transformer Download PDFInfo
- Publication number
- CN204390867U CN204390867U CN201420648105.3U CN201420648105U CN204390867U CN 204390867 U CN204390867 U CN 204390867U CN 201420648105 U CN201420648105 U CN 201420648105U CN 204390867 U CN204390867 U CN 204390867U
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- winding layers
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- high frequency
- frequency transformer
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- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a kind of high frequency transformer, comprise magnetic core, skeleton, stitch, winding and insulating tape, it is characterized in that: described magnetic core is fixedly connected with skeleton, described stitch is located at the bottom at skeleton two ends and is fixedly connected with skeleton, described winding is wrapped in frame center, described winding is provided with primary winding layers from inside to outside successively, screen, secondary winding layers and elementary bias voltage winding layers, and between every layer, be equipped with the isolation of one deck insulating tape, described primary winding layers by two strands and around enamelled wire be wound around one deck at the outer surface uniform close of frame center, described screen is set to 1.2 ~ 1.4 circles and singly leads copper foil tape.The utility model transformer leakage inductance is little, and coupling performance is good.
Description
Technical field
The utility model relates to field transformer, particularly relates to a kind of high frequency transformer.
Background technology
High frequency transformer is as the topmost part of Switching Power Supply, is the vitals carrying out energy storage and transmission.Along with the development of power electronic technology, Switching Power Supply relies on the feature of its high frequency to be widely used in various electronics, electric equipment, among stored-program control exchange, communication, electric power checkout equipment power supply and control appliance power supply, current high frequency transformer normally by winding around in frame center, magnetic core is fixed on skeleton, then insulating tape is superscribed at skin, the transformer leakage inductance of this structure is large, and efficiency is low, poor anti jamming capability, shield effectiveness is bad, and EMI effect is also bad.
Utility model content
Technical problem to be solved in the utility model is: provide the high frequency transformer that a kind of shield effectiveness is good, antijamming capability is strong, leakage inductance is little, coupling ability is good.
For reaching above-mentioned technique effect, the technical solution adopted in the utility model is:
A kind of high frequency transformer, comprise magnetic core, skeleton, stitch, winding and insulating tape, it is characterized in that: described magnetic core is fixedly connected with skeleton, described stitch is located at the bottom at skeleton two ends and is fixedly connected with skeleton, described winding is wrapped in frame center, described winding is provided with primary winding layers from inside to outside successively, screen, secondary winding layers and elementary bias voltage winding layers, and between every layer, be equipped with the isolation of one deck insulating tape, described primary winding layers is wound around one deck by two strands of enamelled wires side by side at the outer surface uniform close of frame center, described screen is set to 1.2 ~ 1.4 circles and singly leads copper foil tape.
Further, described secondary winding layers is provided with the first secondary layer, second subprime layer, for the third time level layer and the 4th secondary layer, and is equipped with the isolation of one deck insulating tape between every layer.
Further, described first secondary layer is that three strands of enamelled wires side by side are closely wound around two-layer outward at screen, described second subprime layer is that three strands of enamelled wires side by side are closely wound around two-layer outward at the first secondary layer, described third time level layer and the 4th secondary layer to be all located at second subprime layer outer, and be jointly covered with a flood, described third time level layer and the 4th secondary layer be two bursts of enamelled wire coilings side by side and form.
Further, described elementary bias voltage winding layers is that two strands of enamelled wires side by side are closely wound around one deck, and elementary bias voltage winding layers is also provided with one deck insulating tape outward.
Further, described magnetic core outer surface is provided with one deck insulating tape.
Further, the two ends of described each winding layers enamelled wire are connected with corresponding stitch respectively.
The beneficial effects of the utility model are: be wound around one deck by two strands of enamelled wires side by side at the outer surface uniform close of frame center by described primary winding layers, described screen is set to 1.2 ~ 1.4 circles and singly leads copper foil tape, reduce the leakage inductance of transformer and improve coupling performance, also improve the kelvin effect of high frequency transformer simultaneously, improve shield effectiveness and antijamming capability.
Accompanying drawing explanation
Fig. 1 is the vertical view of the utility model high frequency transformer.
Fig. 2 is the A-A direction cutaway view of Fig. 1.
Fig. 3 is core portion front view.
In figure, each label and corresponding name are called:
1--magnetic core, 2--skeleton, 3--stitch, 40--winding, 41--primary winding layers, 42--screen, 43--first secondary layer, 44--second subprime layer, 45--third time level layer, 46--the 4th secondary layer, the elementary bias voltage winding layers of 47--.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further details:
A kind of high frequency transformer, comprise magnetic core 1, skeleton 2, stitch 3, winding 40 and insulating tape 5, it is characterized in that: described magnetic core 1 is fixedly connected with skeleton 2, described stitch 3 is located at the bottom at skeleton 2 two ends, and be fixedly connected with skeleton 2, described magnetic core 1 is fixedly connected with skeleton 2, described winding 40 is wrapped in skeleton 2 center, described winding 40 is provided with primary winding layers 41 from inside to outside successively, screen 42, secondary winding layers and elementary bias voltage winding layers 47, and between every layer, be equipped with the isolation of one deck insulating tape, described primary winding layers 41 is wound around one deck by two strands of enamelled wires side by side at the outer surface uniform close at skeleton 2 center, described screen 42 is set to 1.2 ~ 1.4 circles and singly leads copper foil tape.
Described secondary winding layers is provided with the first secondary layer 43, second subprime layer 44, for the third time level layer 45 and the 4th secondary layer 46, and is equipped with the isolation of one deck insulating tape between every layer.
Described first secondary layer 43 is that three strands of enamelled wires side by side are closely wound around two-layer outward at screen, described second subprime layer 44 is that three strands of enamelled wires are side by side two-layer in the outer closely winding of the first secondary layer 43, described third time level layer 45 and the 4th secondary layer 46 to be all located at second subprime layer 44 outer, and be jointly covered with a flood, described third time level layer 45 and the 4th secondary layer 46 be two bursts of enamelled wire coilings side by side and form.Described elementary bias voltage winding layers 47 is that two strands of enamelled wires side by side are closely wound around one deck, and elementary bias voltage winding layers 47 is outer is also provided with one deck insulating tape.Described magnetic core outer surface is provided with one deck insulating tape.The two ends of described each winding layers enamelled wire are connected with corresponding stitch 3 respectively.The utility model is wound around one deck by two strands of enamelled wires side by side at the outer surface uniform close at skeleton 2 center by described primary winding layers 41, described screen 42 is set to 1.2 ~ 1.4 circles and singly leads copper foil tape, reduce the leakage inductance of transformer and improve coupling performance, also improve the kelvin effect of high frequency transformer simultaneously, improve shield effectiveness and antijamming capability.
The utility model is not limited to above-mentioned concrete execution mode, and for the person of ordinary skill of the art from above-mentioned design, without performing creative labour, done all conversion, all drop within protection range of the present utility model.
Claims (6)
1. a high frequency transformer, comprise magnetic core, skeleton, stitch, winding and insulating tape, it is characterized in that: described magnetic core is fixedly connected with skeleton, described stitch is located at the bottom at skeleton two ends, and be fixedly connected with skeleton, described winding is wrapped in frame center, described winding is provided with primary winding layers from inside to outside successively, screen, secondary winding layers and elementary bias voltage winding layers, and between every layer, be equipped with the isolation of one deck insulating tape, described primary winding layers is wound around one deck by two strands of enamelled wires side by side at the outer surface uniform close of frame center, described screen is set to 1.2 ~ 1.4 circles and singly leads copper foil tape.
2. high frequency transformer according to claim 1, is characterized in that: described secondary winding layers is provided with the first secondary layer, second subprime layer, for the third time level layer and the 4th secondary layer, and is equipped with the isolation of one deck insulating tape between every layer.
3. high frequency transformer according to claim 2, it is characterized in that: described first secondary layer is that three strands of enamelled wires side by side are closely wound around two-layer outward at screen, described second subprime layer is that three strands of enamelled wires side by side are closely wound around two-layer outward at the first secondary layer, described third time level layer and the 4th secondary layer to be all located at second subprime layer outer, and be jointly covered with a flood, described third time level layer and the 4th secondary layer be two bursts of enamelled wire coilings side by side and form.
4. high frequency transformer according to claim 3, is characterized in that: described elementary bias voltage winding layers is that two strands of enamelled wires side by side are closely wound around one deck, and elementary bias voltage winding layers is also provided with one deck insulating tape outward.
5. high frequency transformer according to claim 4, is characterized in that: described magnetic core outer surface is provided with one deck insulating tape.
6. high frequency transformer according to claim 5, is characterized in that: the two ends of described each winding layers enamelled wire are connected with corresponding stitch respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648105.3U CN204390867U (en) | 2014-11-03 | 2014-11-03 | A kind of high frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648105.3U CN204390867U (en) | 2014-11-03 | 2014-11-03 | A kind of high frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204390867U true CN204390867U (en) | 2015-06-10 |
Family
ID=53363565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420648105.3U Expired - Fee Related CN204390867U (en) | 2014-11-03 | 2014-11-03 | A kind of high frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204390867U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206398A (en) * | 2015-10-16 | 2015-12-30 | 安科乐康（北京）诊断技术有限公司 | Transformer used for external defibrillator and external defibrillator |
| CN111081452A (en) * | 2019-12-27 | 2020-04-28 | 山西风行测控股份有限公司 | High-frequency transformer and winding method thereof |
| CN112820520A (en) * | 2019-11-15 | 2021-05-18 | 湖南银河电气有限公司 | Electric shielding belt, electric shielding structure applied to coil and manufacturing method of electric shielding structure |
| CN114927314A (en) * | 2022-05-26 | 2022-08-19 | 广安领创华财电子科技有限公司 | High-frequency transformer with anti-interference function |
-
2014
- 2014-11-03 CN CN201420648105.3U patent/CN204390867U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206398A (en) * | 2015-10-16 | 2015-12-30 | 安科乐康（北京）诊断技术有限公司 | Transformer used for external defibrillator and external defibrillator |
| CN112820520A (en) * | 2019-11-15 | 2021-05-18 | 湖南银河电气有限公司 | Electric shielding belt, electric shielding structure applied to coil and manufacturing method of electric shielding structure |
| CN111081452A (en) * | 2019-12-27 | 2020-04-28 | 山西风行测控股份有限公司 | High-frequency transformer and winding method thereof |
| CN114927314A (en) * | 2022-05-26 | 2022-08-19 | 广安领创华财电子科技有限公司 | High-frequency transformer with anti-interference function |
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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: 20150610 Termination date: 20151103 |
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| EXPY | Termination of patent right or utility model |