CN213519521U - Flyback transformer based on sectional winding - Google Patents
Flyback transformer based on sectional winding Download PDFInfo
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- CN213519521U CN213519521U CN202022574669.5U CN202022574669U CN213519521U CN 213519521 U CN213519521 U CN 213519521U CN 202022574669 U CN202022574669 U CN 202022574669U CN 213519521 U CN213519521 U CN 213519521U
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Abstract
The utility model relates to a transformer manufacturing technical field, specific turn over transformer based on sectional type winding that rational in infrastructure, winding surfacing easily assemble and can show improvement product anti-electromagnetic interference performance that says so, a serial communication port, the transformer skeleton outside is equipped with the sectional type winding, the sectional type winding comprises at least two sections coil winding sections, and after the bottom of first group coil winding section was extended to the upper strata of first group coil winding section along the bottom of first group coil winding section, the bottom of extending to next coil winding section in the sectional type winding, compared with the prior art, the utility model, have that rational in infrastructure, the coil layer of winding is low with the layer between the electric capacity effect, anti-electromagnetic interference can the reinforce, with reasonable costs, advantage that the production efficiency height is showing.
Description
The technical field is as follows:
the utility model relates to a transformer manufacturing technical field, specific saying so one kind rational in infrastructure, winding surfacing easily assemble and can show the flyback transformer based on sectional type winding that improves product anti-electromagnetic interference performance.
Background art:
the flyback transformer means that when the primary coil of the transformer is just excited by the dc pulse voltage, the secondary coil of the transformer does not provide power output to the load, and the power output is provided to the load only after the excitation voltage of the primary coil of the transformer is turned off. The primary windings of the existing flyback transformer are densely wound layer by layer and distributed in order, and distributed capacitors are formed among primary and secondary windings to cause mutual interference of the primary and secondary windings.
In order to solve the problem, in the existing means, in order to increase a shielding winding layer, an enamelled wire or a copper foil is adopted to wind a shielding winding layer to shield a primary winding and a secondary winding, so that the conduction interference between the primary winding and the secondary winding is solved, the production cost is obviously increased, and the raw frying efficiency is reduced.
The invention content is as follows:
the utility model discloses to the shortcoming that exists among the prior art with not enough, provide a rational in infrastructure, the coiling is simple and convenient, can show the flyback transformer based on the sectional type winding that improves product anti-electromagnetic interference performance.
The utility model discloses a following measure reaches:
the flyback transformer based on the sectional type winding is provided with a transformer framework, an iron core and a winding and is characterized in that the sectional type winding is arranged on the outer side of the transformer framework and consists of at least two sections of coil winding sections, and the front end of a coil in the sectional type winding extends to the bottom layer of the next coil winding section after extending to the upper layer of the first coil winding section along the bottom layer of the first coil winding section.
Set up annular baffle between two coil winding sections in the transformer skeleton outside, annular baffle is for having the lamella form of a breach for accomplish the level and fill up of sunk position between the adjacent coil winding section, make the product winding have level and smooth outward appearance.
The outer side of the transformer framework of the utility model is provided with three coil winding sections, the number of winding layers of each coil winding section is the same, and the winding widths of the three coil winding sections are the same; further, the number of winding layers of each coil winding section is at least three.
Transformer skeleton has well cavity tube-shape main part, and the upside of well cavity tube-shape main part is equipped with the bearing board, and the base is connected to the downside, correspond respectively on bearing board and the base and set up the through-hole with well cavity tube-shape main part inner chamber UNICOM to accomplish the fixed of iron core, bearing board upside is equipped with two spacing bosss of parallel arrangement, and bearing board is circular on, the range of height of spacing boss is 0.5-2.0mm, and the edge that bearing board corresponds the spacing boss outside sets up the notch, and the wiring of being convenient for is walked.
The utility model reduces the maximum voltage difference between layers of each section of winding by adopting a multi-section winding method, weakens the capacitance effect, further reduces the distributed capacitance, and improves the electromagnetic interference problem of the switch transformer under the high-frequency working state; and a framework wire slot is not needed to be arranged on the transformer framework, and adjacent coil winding sections are isolated only by adding a winding partition plate or an end, so that the purpose of the invention can be achieved by adopting the existing framework structure without changing a die.
Compared with the prior art, the utility model, have that the coil layer of rational in infrastructure, winding is low with the layer electric capacity effect, anti-electromagnetic interference ability is strong, advantage that is showing such as with reasonable costs, production efficiency height.
Description of the drawings:
fig. 1 is a schematic structural diagram of a transformer bobbin and a winding in the present invention.
Fig. 2 is a schematic structural diagram of the winding in the present invention.
Fig. 3 is a schematic diagram of a winding structure in embodiment 1 of the present invention.
Reference numerals: transformer skeleton 1, coil winding section 2, annular baffle 3, upper bearing board 4, base 5, spacing boss 6, notch 7.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and examples.
As shown in the accompanying drawings, the utility model provides a flyback transformer based on sectional type winding is equipped with transformer skeleton, iron core and winding, the 1 outside of transformer skeleton is equipped with the sectional type winding, the sectional type winding comprises two sections at least coil winding sections 2, and after the coil front end in the sectional type winding extended to the upper strata of first coil winding section 2 along the bottom of first coil winding section 2, extended to the bottom of next coil winding section 2.
Set up annular baffle 3 between two coil winding sections 2 in the transformer skeleton outside, annular baffle 3 is for having the sheet metal form of a breach for accomplish the fill and level of sunk position between to adjacent coil winding section, make the product winding have level and smooth outward appearance.
The utility model is characterized in that three coil winding sections 2 are arranged outside the transformer framework 1, the number of winding layers of each coil winding section 2 is the same, and the winding widths of the three coil winding sections 2 are the same; further, the number of winding layers of each coil winding section 2 is at least three.
Transformer skeleton has cavity tube-shape main part, and the upside of cavity tube-shape main part is equipped with bearing plate 4, and base 5 is connected to the downside, correspond respectively on bearing plate 4 and the base 5 and set up the through-hole with cavity tube-shape main part inner chamber UNICOM to accomplish the fixed of iron core, bearing plate upside is equipped with two spacing bosss 6 of parallel arrangement, and bearing plate 4 is circularly on, the high range of spacing boss 6 is 0.5-2.0mm, and notch 7 is seted up to the edge that bearing plate 4 corresponds the 6 outsides of spacing boss, and the wiring of being convenient for is walked.
Example 1:
as shown in fig. 1 and fig. 3, this example provides a flyback transformer based on a segmented winding, which includes a transformer bobbin, an iron core, and a winding, where the transformer bobbin 1 is provided with the segmented winding at its outer side, the segmented winding is composed of at least two coil winding sections 2, and the front end of the coil in the segmented winding extends along the bottom layer of the first coil winding section 2 to the upper layer of the first coil winding section 2 and then to the bottom layer of the next coil winding section 2; an annular partition plate 3 is arranged between the two coil winding sections 2 on the outer side of the transformer framework, and the annular partition plate 3 is in a thin plate shape with a gap and is used for filling and leveling the concave position between the adjacent coil winding sections so that the product winding has a flat appearance;
in the embodiment, three coil winding sections 2 are arranged on the outer side of the transformer framework 1, the number of winding layers of each coil winding section 2 is the same, and the winding widths of the three coil winding sections 2 are the same; the number of winding layers of each coil winding section 2 is at least three;
the transformer framework has a hollow cylindrical main body, an upper bearing plate 4 is arranged on the upper side of the hollow cylindrical main body, a base 5 is connected to the lower side of the hollow cylindrical main body, through holes communicated with the inner cavity of the hollow cylindrical main body are correspondingly formed in the upper bearing plate 4 and the base 5 respectively to fix an iron core, two limiting bosses 6 arranged in parallel are arranged on the upper bearing plate, the upper bearing plate 4 is circular, the height range of the limiting bosses 6 is 0.5-2.0mm, and notches 7 are formed in the edges, corresponding to the outer sides of the limiting bosses 6, of the upper bearing plate 4, so that wiring is facilitated.
The utility model reduces the maximum voltage difference between layers of each section of winding by adopting a multi-section winding method, weakens the capacitance effect, further reduces the distributed capacitance, and improves the electromagnetic interference problem of the switch transformer under the high-frequency working state; and a framework wire slot is not needed to be arranged on the transformer framework, and adjacent coil winding sections are isolated only by adding a winding partition plate or an end, so that the purpose of the invention can be achieved by adopting the existing framework structure without changing a die.
Compared with the prior art, the utility model, have that the coil layer of rational in infrastructure, winding is low with the layer electric capacity effect, anti-electromagnetic interference ability is strong, advantage that is showing such as with reasonable costs, production efficiency height.
Claims (5)
1. The flyback transformer based on the sectional type winding is provided with a transformer framework, an iron core and a winding and is characterized in that the sectional type winding is arranged on the outer side of the transformer framework and consists of at least two sections of coil winding sections, and the front end of a coil in the sectional type winding extends to the bottom layer of the next coil winding section after extending to the upper layer of the first coil winding section along the bottom layer of the first coil winding section.
2. The flyback transformer of claim 1, wherein an annular spacer or an end band is disposed between two winding segments outside the bobbin, and the annular spacer is a thin plate with a gap.
3. The flyback transformer of claim 1, wherein three coil winding sections are disposed outside the transformer bobbin, the number of winding layers of each coil winding section is the same, and the winding widths of the three coil winding sections are the same.
4. The segmented winding based flyback transformer of claim 1, wherein the number of winding layers per coil winding segment is at least three.
5. The flyback transformer of claim 1, wherein the transformer bobbin has a hollow cylindrical body, an upper supporting plate is disposed on an upper side of the hollow cylindrical body, a lower side of the hollow cylindrical body is connected to the base, the upper supporting plate and the base are respectively provided with through holes communicating with an inner cavity of the hollow cylindrical body, so as to fix the iron core, the upper supporting plate is provided with two parallel limiting bosses, the upper supporting plate is circular, the height range of the limiting bosses is 0.5-2.0mm, and the upper supporting plate is provided with notches at edges corresponding to outer sides of the limiting bosses, so as to facilitate wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022574669.5U CN213519521U (en) | 2020-11-09 | 2020-11-09 | Flyback transformer based on sectional winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022574669.5U CN213519521U (en) | 2020-11-09 | 2020-11-09 | Flyback transformer based on sectional winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213519521U true CN213519521U (en) | 2021-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022574669.5U Active CN213519521U (en) | 2020-11-09 | 2020-11-09 | Flyback transformer based on sectional winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213519521U (en) |
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2020
- 2020-11-09 CN CN202022574669.5U patent/CN213519521U/en active Active
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