CN203521134U - Low-leakage-inductance stranded wire transformer - Google Patents
Low-leakage-inductance stranded wire transformer Download PDFInfo
- Publication number
- CN203521134U CN203521134U CN201320625842.7U CN201320625842U CN203521134U CN 203521134 U CN203521134 U CN 203521134U CN 201320625842 U CN201320625842 U CN 201320625842U CN 203521134 U CN203521134 U CN 203521134U
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- primary coil
- coil
- secondary coil
- leg
- transformer
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- 238000004804 winding Methods 0.000 claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000004888 barrier function Effects 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract 3
- 238000003466 welding Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 101150012579 ADSL gene Proteins 0.000 description 1
- 102100020775 Adenylosuccinate lyase Human genes 0.000 description 1
- 108700040193 Adenylosuccinate lyases Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a low-leakage-inductance stranded wire transformer which comprises a winding frame with a hollow portion, a primary coil and a secondary coil. The primary coil and the secondary coil are wound on the winding frame, welding feet are arranged on the winding frame, the primary coil comprises a copper wire and an insulation layer wrapping the copper wire, the secondary coil is a copper wire, and the primary coil and the secondary coil are wound on the winding frame together. Due to the insulation layer arranged outside the primary coil, in the process of winding, the primary coil and the secondary coil conduct winding together, compared with the winding mode that a primary coil and a second coil of a traditional transformer are respectively and independently wound and then an insulation layer is arranged to separate the primary coil and the secondary coil, the winding mode of the transformer is simple in process and short in consumed time, and improves the production efficiency, leakage inductance of the transformer is reduced, the production first pass yield and the longitudinal balance of the transformer are improved, and therefore the product quality and the performance of the transformer are improved.
Description
Technical field
The utility model relates to field transformer technology, refers in particular to a kind of low leakage inductance twisted wire transformer.
Background technology
In electric equipment and radio-circuit, transformer is commonly used for lifting voltage, matched impedance, safety isolation etc.In generator, no matter be that coil movement is passed through magnetic field or Movement in Magnetic Field by fixed coil, all can be in coil induced potential, these two kinds of situations, the value of magnetic flux is all constant, but has change with the magnetic flux quantity of coil intersecting chain, this is the principle of mutual induction.Transformer is exactly that a kind of undesirable mutual electromagnetic inductance of utilizing is answered, voltage of transformation, the device of electric current and impedance.
The transformer that high-speed data communication in the digital subscriber lines such as common ADSL, VDSL is equipped with modulator-demodulator generally comprises drum stand and is wound in primary coil and the secondary coil on drum stand, traditional winding mode is generally prior to being wound around one deck primary coil on drum stand, then be wound around a layer insulating, be wound around again one deck secondary coil, primary coil and secondary coil are separated by insulating barrier, the transformer that adopts this winding mode to make, when frequency is 2.2MHz, longitudinal balance is 30dB; When frequency is 30MHz, longitudinal balance is 10dB; When frequency is 2.2MHz or 30MHz, leakage inductance is 5-10uH, if leakage inductance is reduced to 1uH left and right, need coiling 7-9 layer, coiling is about 300 seconds man-hour, produces first-pass yield approximately 95%, from above-mentioned parameter, this class transformer leakage inductance is high, and coiling man-hours requirement is longer, produces first-pass yield low, therefore, for above-mentioned defect, tackle this class transformer and improve, to make up above-mentioned defect.
Utility model content
In view of this, the utility model is for the disappearance of prior art existence, its main purpose is to provide a kind of low leakage inductance twisted wire transformer, by primary coil, insulating barrier being set outward, during coiling, primary coil winds the line together with secondary coil, processing procedure is simple, consuming time short, and, reduce transformer leakage inductance, improved the product quality and performances of transformer.
For achieving the above object, the utility model adopts following technical scheme:
A kind of low leakage inductance twisted wire transformer, comprise that one has the drum stand of hollow bulb and is wound in primary coil and the secondary coil on this drum stand, on this drum stand, be provided with leg, wherein, described primary coil comprises copper cash and is coated on the insulating barrier of copper cash outside, this secondary coil is copper cash, and this primary coil is wound on drum stand together with secondary coil.
As a kind of preferred version: the winding section that described drum stand comprises two base portions that are arranged side by side and is integrally formed at two base portions tops, above-mentioned primary coil and secondary coil are around on this winding section.
As a kind of preferred version: described leg comprises the first leg and the second leg, this first leg is arranged at wherein on a base portion, and above-mentioned primary coil is connected with this first leg; This second leg is arranged on another base portion, and above-mentioned secondary coil is connected with this second leg.
As a kind of preferred version: described hollow bulb is arranged on above-mentioned winding section, and this hollow bulb is manhole.
As a kind of preferred version: described primary coil and secondary coil tangle mutually, and during coiling, primary coil is wound around together with secondary coil.
As a kind of preferred version: on described drum stand, primary coil and secondary coil outermost layer are coated with insulating outer layer.
As a kind of preferred version: described transformer also includes a housing, it is outside that this housing is wrapped in above-mentioned drum stand, is provided with a magnetic core matching with above-mentioned hollow bulb on this housing, and this magnetic core is plugged in hollow bulb.
As a kind of preferred version: be coated with insulating outer layer on described hull outside wall.
The utility model compared with prior art has obvious advantage and beneficial effect, particularly, as shown from the above technical solution, by insulating barrier being set in primary coil outward, during coiling, primary coil winds the line together with secondary coil, with respect to traditional transformer primary coil and secondary coil coiling separately respectively, the winding mode that insulating barrier is kept apart both is set again, this winding mode processing procedure is simple, consuming time short, improved production efficiency, and, reduced transformer leakage inductance, transformer production first-pass yield and longitudinal balance have been improved, thereby, the product quality and performances of transformer have been improved.
For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, be described in detail.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the utility model;
Fig. 2 is another visual angle schematic perspective view of the utility model;
Fig. 3 is drum stand, coil and the housing assembling schematic perspective view of the utility model;
Fig. 4 is the exploded perspective schematic diagram of Fig. 3;
Fig. 5 is primary coil and the secondary coil schematic cross-section of the utility model;
Fig. 6 is the coil schematic diagram of the utility model.
accompanying drawing identifier declaration:
10, drum stand 11, base portion
111, the first leg 112, the second leg
12, winding section 121, hollow bulb
20, coil 21, primary coil
211, copper cash 212, insulating barrier
22, secondary coil 30, insulating outer layer
40, housing 41, magnetic core.
Embodiment
As shown in Figures 1 to 6, a kind of low leakage inductance twisted wire transformer, includes drum stand 10 and coil 20 to the utility model, wherein:
This drum stand 10 comprises that two base portions that are arranged side by side 11 and one are connected in the winding section 12 of two base portion 11 tops, in base portion 11 lower ends wherein, be provided with the first leg 111, in another base portion lower end, be provided with the second leg 112, and on winding section 12, be provided with the hollow bulb 121 of a manhole shape.
This coil 20 comprises primary coil 21 and secondary coil 22, this primary coil 21 comprises copper cash 211 and is coated on the insulating barrier 212 of copper cash 211 outsides, this secondary coil 22 is copper cash 211, this primary coil 21 forms twisted wire together with tangling with secondary coil 22, during coiling, this primary coil 21 is wound on the winding section 12 of drum stand 10 together with secondary coil 22, and primary coil 21 is connected with the first leg 111 on above-mentioned base portion 11, secondary coil 22 is connected with above-mentioned the second leg 112, after primary coil 21 and secondary coil 22 have wound the line, in coil outermost layer, be coated with insulating outer layer 30, in drum stand 10, be outside equipped with a housing 40, be provided with the magnetic core corresponding with the hollow bulb 121 of drum stand 10 41 on this housing 40, this magnetic core 41 is inserted and is turned in hollow bulb 121, and is coated with insulating outer layer 30 on hull outside wall.
Principle of the present utility model is as follows: primary coil 21 is set to the structure that copper cash 211 and insulating barrier 212 combine, when coiling, primary coil 21 winds the line together with secondary coil 22, the transformer that adopts this processing procedure to produce, when frequency is 2.2MHz, longitudinal balance is about 60dB, when 30MHz, longitudinal balance is about 30dB, and, when frequency is 2.2MHz to 30MHz, leakage inductance is less than 1uH, approximately 80 seconds man-hours of whole coiling, produce first-pass yield and be greater than 99%, the transformer made from respect to traditional winding mode, this transformer all has outstanding advantage on processing procedure He in performance.
Design focal point of the present utility model is, by primary coil, insulating barrier being set outward, during coiling, primary coil winds the line together with secondary coil, with respect to traditional transformer primary coil and secondary coil coiling separately respectively, then the winding mode that insulating barrier is kept apart both is set, this winding mode processing procedure is simple, consuming time short, improved production efficiency, and, reduced transformer leakage inductance, improved transformer production first-pass yield and longitudinal balance, thereby, the product quality and performances of transformer improved.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore every foundation technical spirit of the present utility model, to any trickle modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solutions of the utility model.
Claims (8)
1. one kind low leakage inductance twisted wire transformer, comprise that one has the drum stand of hollow bulb and is wound in primary coil and the secondary coil on this drum stand, on this drum stand, be provided with leg, it is characterized in that: described primary coil comprises copper cash and is coated on the insulating barrier of copper cash outside, this secondary coil is copper cash, and this primary coil is wound on drum stand together with secondary coil.
2. low leakage inductance twisted wire transformer according to claim 1, is characterized in that: the winding section that described drum stand comprises two base portions that are arranged side by side and is integrally formed at two base portions tops, above-mentioned primary coil and secondary coil are around on this winding section.
3. low leakage inductance twisted wire transformer according to claim 2, is characterized in that: described leg comprises the first leg and the second leg, and this first leg is arranged at wherein on a base portion, and above-mentioned primary coil is connected with this first leg; This second leg is arranged on another base portion, and above-mentioned secondary coil is connected with this second leg.
4. low leakage inductance twisted wire transformer according to claim 2, is characterized in that: described hollow bulb is arranged on above-mentioned winding section, and this hollow bulb is manhole.
5. low leakage inductance twisted wire transformer according to claim 1, is characterized in that: described primary coil and secondary coil tangle mutually, and during coiling, primary coil is wound around together with secondary coil.
6. low leakage inductance twisted wire transformer according to claim 1, is characterized in that: on described drum stand, primary coil and secondary coil outermost layer are coated with insulating outer layer.
7. low leakage inductance twisted wire transformer according to claim 1, it is characterized in that: described transformer also includes a housing, it is outside that this housing is wrapped in above-mentioned drum stand, is provided with a magnetic core matching with above-mentioned hollow bulb on this housing, and this magnetic core is plugged in hollow bulb.
8. low leakage inductance twisted wire transformer according to claim 7, is characterized in that: on described hull outside wall, be coated with insulating outer layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625842.7U CN203521134U (en) | 2013-10-11 | 2013-10-11 | Low-leakage-inductance stranded wire transformer |
| TW103217928U TWM505683U (en) | 2013-10-11 | 2014-10-08 | Transformer with low inductance leakage strand wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625842.7U CN203521134U (en) | 2013-10-11 | 2013-10-11 | Low-leakage-inductance stranded wire transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521134U true CN203521134U (en) | 2014-04-02 |
Family
ID=50380025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320625842.7U Expired - Lifetime CN203521134U (en) | 2013-10-11 | 2013-10-11 | Low-leakage-inductance stranded wire transformer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203521134U (en) |
| TW (1) | TWM505683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269251A (en) * | 2014-08-25 | 2015-01-07 | 东莞联宝光电科技有限公司 | Transformer |
-
2013
- 2013-10-11 CN CN201320625842.7U patent/CN203521134U/en not_active Expired - Lifetime
-
2014
- 2014-10-08 TW TW103217928U patent/TWM505683U/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269251A (en) * | 2014-08-25 | 2015-01-07 | 东莞联宝光电科技有限公司 | Transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM505683U (en) | 2015-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |