CN208637277U - A kind of noise reduction antipole high frequency transformer - Google Patents
A kind of noise reduction antipole high frequency transformer Download PDFInfo
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- CN208637277U CN208637277U CN201821041526.4U CN201821041526U CN208637277U CN 208637277 U CN208637277 U CN 208637277U CN 201821041526 U CN201821041526 U CN 201821041526U CN 208637277 U CN208637277 U CN 208637277U
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- coil
- magnetic core
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- primary
- antipole
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Abstract
The utility model discloses a kind of noise reduction antipole high frequency transformers, it includes magnetic core, bakelite skeleton and coil, the coil uniform winding is at the middle part of bakelite skeleton, the center pillar of magnetic core passes through the iron core receiving opening among bakelite skeleton, it is perpendicular with the coil that is wound on bakelite skeleton, air gap is offered on the center pillar of the magnetic core, one layer in the coil near bakelite skeleton is the first primary coil, the top of first primary coil is secondary coil, the top of secondary coil is the second primary coil, between first primary coil and secondary coil, insulating layer is provided between secondary coil and the second primary coil, the outer surface of second primary coil is provided with insulating layer, the air gap is filled with bicomponent epoxy resin glue.The transformer uses the center pillar of epoxy resin glue sticking magnetic core, strengthens the conjugation of iron core, the building block of fixed transformer, reduction electric current is excessive and causes the noise of component vibration sending.
Description
Technical field
The utility model relates to field transformer, especially a kind of noise reduction antipole high frequency transformer.
Background technique
High frequency transformer is the critical component of all kinds of high frequency switch powers, and performance directly influences the property of Switching Power Supply
Energy.
For traditional antipole transformer in the magnetic core of fixed double E shapes, the method for use is engaged on the both sides of magnetic core
Place's point epoxide-resin glue, and the joint of magnetic core is often all naked is exposed on the external, and can be seen, influence beauty, simultaneously
Since magnetic core center pillar offers air gap, and center pillar is not bonded, when transformer passes through biggish electric current, the portion of transformer
Part can generate vibration to issue high frequency cry.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of noise reduction antipole high frequency transformer, should
Transformer uses the center pillar of epoxy resin glue sticking magnetic core, strengthens the conjugation of iron core, fixes the building block of transformer,
The noise that electric current is excessive and component vibration is caused to issue is reduced, " sandwich " structure of secondary coil is wrapped up using primary coil,
Increase the efficient coupling area between primary and secondary coil, the biggish leakage inductance for reducing transformer reduces due to voltage spikes caused by leakage inductance.
The purpose of this utility model is achieved through the following technical solutions: a kind of noise reduction antipole high frequency transformer, it
Including magnetic core, bakelite skeleton and coil, the coil uniform winding is passed through in the middle part of bakelite skeleton, the center pillar of magnetic core
Iron core receiving opening among bakelite skeleton, the center pillar of the magnetic core perpendicular with the coil that is wound on bakelite skeleton
On offer air gap, one layer in the coil near bakelite skeleton is the first primary coil, the first primary coil it is upper
Portion is secondary coil, and the top of secondary coil is the second primary coil, between first primary coil and secondary coil, secondary
It is provided with insulating layer between grade coil and the second primary coil, the outer surface of second primary coil is provided with insulation
Layer, the air gap are filled with bicomponent epoxy resin glue.
Further, the magnetic core is double E shape magnetic cores.
Further, first primary coil, secondary coil and the second primary coil are copper coil.
Further, the insulating layer includes three-layer insulated adhesive tape.
Further, the ratio that glue host and curing agent are bonded in the bicomponent epoxy resin glue is 5:1.
The beneficial effects of the utility model are: the utility model provides a kind of noise reduction antipole high frequency transformer, the transformation
Device uses the center pillar of epoxy resin glue sticking magnetic core, strengthens the conjugation of iron core, and the building block of fixed transformer is reduced
The noise that electric current is excessive and component vibration is caused to issue, can effectively promote the working efficiency of transformer, reduce cost, reduce body
Product.Using " sandwich " structure of primary coil package secondary coil, increase the efficient coupling area between primary and secondary coil, it is larger
Reduction transformer leakage inductance, reduce due to voltage spikes caused by leakage inductance, so that the voltage stress of MOSFEF reduces, common mode interference is electric
Stream can also reduce simultaneously, can also reduce the distribution capacity between primary.
Detailed description of the invention
Fig. 1 is the top view of transformer；
Fig. 2 is the transverse sectional view of transformer；
Fig. 3 is the longitudinal sectional view of transformer；
Fig. 4 is the magnetic core schematic diagram of transformer；
In figure, 1- magnetic core, 2- bakelite skeleton, 3- coil, 4- air gap, 5- insulating layer, the first primary coil of 6-, 7- grade
Coil, the second primary coil of 8-.
Specific embodiment
The technical solution of the utility model, but the protection scope of the utility model are described in further detail with reference to the accompanying drawing
It is not limited to as described below.
As shown in fig. 1 to fig. 4, a kind of noise reduction antipole high frequency transformer, it includes magnetic core 1, bakelite skeleton 2 and coil 3,
3 uniform winding of coil is at the middle part of bakelite skeleton 2, and the magnetic core 1 is double E shape magnetic cores, double E mirror settings,
The center pillar of magnetic core 1 passes through the iron core receiving opening among bakelite skeleton 2, hangs down with 3 phase of coil being wound on bakelite skeleton 2
It directly, is the first primary coil 6 near one layer of bakelite skeleton 2 in the coil 3, the top of the first primary coil 6 is secondary
Grade coil 7, the top of secondary coil 7 are the second primary coil 8, between first primary coil 6 and secondary coil 7, secondary
It is provided with insulating layer 5 between grade coil 7 and the second primary coil 8, the outer surface of second primary coil 8 is provided with absolutely
Edge layer 5 offers air gap 4 on the center pillar of the magnetic core 1, is in the ratio that air gap 4 fills bonding glue host and curing agent
Two E shape magnetic cores 1 are fixed together by the bicomponent epoxy resin glue of 5:1.Epoxide-resin glue is also by magnetic core and electricity simultaneously
Wooden frame bonds together.
Further, first primary coil 6, secondary coil 7 and the second primary coil 8 are copper coil.
Further, the insulating layer 5 includes three-layer insulated adhesive tape.
The noise reduction antipole high frequency transformer of the utility model uses the center pillar and bone of the double E shape magnetic cores of epoxy resin glue sticking
Frame strengthens the conjugation of iron core, and the building block of fixed transformer, reduction electric current is excessive and causes making an uproar for component vibration sending
Sound can effectively promote the working efficiency of transformer, reduce cost, reduce volume.Using " the three of primary coil package secondary coil
Mingzhi " structure, increases the efficient coupling area between primary and secondary coil, and the biggish leakage inductance for reducing transformer reduces leakage inductance and causes
Due to voltage spikes, so that the voltage stress of MOSFEF reduces, common-mode interference current can also reduce simultaneously, can also reduce transformer
Distribution capacity between primary.
Claims (4)
1. a kind of noise reduction antipole high frequency transformer, it includes magnetic core (1), bakelite skeleton (2) and coil (3), the coil
(3) at the middle part of bakelite skeleton (2), the center pillar of magnetic core (1) passes through bakelite skeleton (2) intermediate iron core and accommodates to be led to uniform winding
Hole, it is perpendicular with the coil (3) that is wound on bakelite skeleton (2), it is characterised in that: to be opened on the center pillar of the magnetic core (1)
Equipped with air gap (4), one layer in the coil (3) near bakelite skeleton (2) is the first primary coil (6), and first is primary
The top of coil (6) is secondary coil (7), and the top of secondary coil (7) is the second primary coil (8), and described first is primary
It is provided with insulating layer (5) between coil (6) and secondary coil (7), between secondary coil (7) and the second primary coil (8), it is described
The outer surface of the second primary coil (8) be provided with insulating layer (5), the air gap (4) is filled with bicomponent epoxy resin
Glue.
2. a kind of noise reduction antipole high frequency transformer according to claim 1, it is characterised in that: the magnetic core (1) is
Double E shape magnetic cores.
3. a kind of noise reduction antipole high frequency transformer according to claim 1, it is characterised in that: first primary coil
(6), secondary coil (7) and the second primary coil (8) are copper coil.
4. a kind of noise reduction antipole high frequency transformer according to claim 1, it is characterised in that: insulating layer (5) packet
Include three-layer insulated adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821041526.4U CN208637277U (en) | 2018-07-03 | 2018-07-03 | A kind of noise reduction antipole high frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821041526.4U CN208637277U (en) | 2018-07-03 | 2018-07-03 | A kind of noise reduction antipole high frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208637277U true CN208637277U (en) | 2019-03-22 |
Family
ID=65736554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821041526.4U Active CN208637277U (en) | 2018-07-03 | 2018-07-03 | A kind of noise reduction antipole high frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208637277U (en) |
-
2018
- 2018-07-03 CN CN201821041526.4U patent/CN208637277U/en active Active
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