CN208767138U - A kind of high frequency transformer with function of shielding - Google Patents
A kind of high frequency transformer with function of shielding Download PDFInfo
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- CN208767138U CN208767138U CN201821444829.0U CN201821444829U CN208767138U CN 208767138 U CN208767138 U CN 208767138U CN 201821444829 U CN201821444829 U CN 201821444829U CN 208767138 U CN208767138 U CN 208767138U
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- high frequency
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Abstract
The utility model discloses a kind of high frequency transformers with function of shielding, are related to high frequency transformer technical field.The high frequency transformer with function of shielding, including high frequency transformer ontology and pedestal；The pedestal includes bottom shield plate, the dynamic barricade of sideslip, side shield plate and perpendicular Abdeckschieber plate, closed frame structure is constituted by barricade, so that high frequency transformer ontology is in closing frame structure, the problem that existing high frequency transformer leakage inductance is big, parasitic capacitance is big and easily causes the electromagnetic interference of Switching Power Supply big is avoided；It is to be slidably connected that sideslip, which moves barricade and perpendicular Abdeckschieber plate with side shield plate, can be dismantled, to overhaul and replace high frequency transformer ontology.
Description
Technical field
The utility model belongs to high frequency transformer technical field more particularly to a kind of high frequency transformation with function of shielding
Device.
Background technique
Transformer is the equipment for changing alternating voltage using the principle of electromagnetic induction, have voltage transformation, current transformation,
The functions such as impedance transformation, isolation and pressure stabilizing.Wherein, high frequency transformer is the power supply transformation that working frequency is more than intermediate frequency (10kHz)
Device is mainly used for making high-frequency switch power transformer in high frequency switch power, also have for high frequency electric source and Inverter Welder
In make high frequency inverter transformer.
Since there are high-frequency currents, voltage change in high frequency switch power, and pass through the conduction of conducting wire, and parasitic electricity
Feel, the coupled mode Conducted EMI of parasitic capacitance, while the variation of electric current, voltage forms radiation with the variation of magnetic field, electric field
EMI, therefore, the Switching Power Supply of all topological forms have the problem of electromagnetic interference.In specific power circuit, cause electromagnetism
The main reason for interference, is the unreasonable of transformer device structure design, causes transformer leakage inductance and parasitic capacitance big, leads to metal-oxide-semiconductor
The high frequency change dramatically of drain current, voltage produces serious electromagnetic interference by the coupling of transformer parasitic capacitance.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of high frequency transformer with function of shielding, by right
The improvement of high-frequency transformer structure, to solve, existing high frequency transformer leakage inductance is big, parasitic capacitance is big and easily causes Switching Power Supply
The big problem of electromagnetic interference.
The utility model is to solve above-mentioned technical problem by the following technical solutions: a kind of with function of shielding
High frequency transformer, including high frequency transformer ontology and pedestal；The pedestal includes bottom shield plate, sideslip dynamic barricade, side
Barricade and perpendicular Abdeckschieber plate；The side shield plate includes three pieces, and three blocks of side shield plates, which join end to end, to enclose side and open
The frame structure of mouth；The bottom shield plate is mounted on the bottom of two blocks of opposite side shield plates；In two pieces of opposite side shields
Symmetrically offer the first sideslip slot and the second sideslip slot on plate in the horizontal direction, and in two blocks of opposite side shield plates close to opening
Perpendicular sliding slot is symmetrically offered along the vertical direction at mouthful；The size of barricade is moved in the sideslip and the size of the first sideslip slot is mutually fitted
It answers, the size of the perpendicular Abdeckschieber plate and the size of perpendicular sliding slot are adapted；
Draw runner is symmetrically equipped in the two sides of the high frequency transformer ontology；The size of the draw runner and setting height and the
The size and setting height of two sideslip slots are adapted.
The high frequency transformer that the utility model is proposed first passes through draw runner and plugs in high frequency transformer ontology when being installed
Enter into the second sideslip slot, so that high frequency transformer ontology is in frame structure；Sideslip moves barricade and passes through the first sideslip slot
It is inserted into frame structure, Abdeckschieber plate is erected by perpendicular sliding slot and is inserted into frame structure, barricade, perpendicular Abdeckschieber are moved by sideslip
Plate, bottom shield plate and side shield plate constitute closed frame structure, so that high frequency transformer ontology is in closing framework knot
In structure, the problem that existing high frequency transformer leakage inductance is big, parasitic capacitance is big and easily causes the electromagnetic interference of Switching Power Supply big is avoided；
There are gaps between bottom shield plate and perpendicular Abdeckschieber plate and side shield plate, are the reserved of the pin on high frequency transformer ontology
Position.This dismountable structure of the high frequency transformer of the utility model can either play shielding action, and can be in high frequency transformation
It overhauls and replaces in time when the damage of device ontology or failure.
Further, the bottom shield plate, sideslip are moved used by barricade, side shield plate and perpendicular Abdeckschieber plate
Material is polypropylene.
Further, the cross-sectional structure of the high frequency transformer ontology successively includes support frame, first from inside to outside
Winding, the first shielding copper foil, the second winding, the tertiary winding, secondary shielding copper foil, the 4th winding and protective layer；
First shielding copper foil and secondary shielding copper foil further reduce the leakage inductance and electromagnetism spoke of high frequency transformer ontology
Blackberry lily is disturbed, while playing the role of conductor.
Further, the protective layer is fibrous layer.
Further, line used by first winding, the second winding, the tertiary winding and the 4th winding is enamel-cover
Line, magnet wire insulation prevent line short.
Further, the cross-sectional structure of the enameled wire is followed successively by copper core, PEI insulating layer, PAI insulation from inside to outside
Layer, enameled wire lubricant layer.
Further, first winding, the second winding, the tertiary winding and the 4th winding wind at least one circle insulation
Every group of winding can be further isolated in adhesive tape, insulating tape, increase insulation performance.
Further, the high frequency transformer ontology is ellipsoidal structure.
Compared with prior art, the high frequency transformer provided by the utility model with function of shielding, including high frequency become
Depressor ontology and pedestal；The pedestal includes bottom shield plate, the dynamic barricade of sideslip, side shield plate and perpendicular Abdeckschieber
Plate constitutes closed frame structure by barricade, so that high frequency transformer ontology is in closing frame structure, avoids existing
There is the problem that high frequency transformer leakage inductance is big, parasitic capacitance is big and easily causes the electromagnetic interference of Switching Power Supply big；Barricade is moved in sideslip
It is slidably connected, can dismantle, to overhaul and replace high frequency transformer ontology with side shield plate with perpendicular Abdeckschieber plate；
The utility model structure is simple, easy for installation.
Detailed description of the invention
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only one embodiment of the utility model, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of the high frequency transformer with function of shielding of the utility model；
Wherein: 1- high frequency transformer ontology, 2- pedestal, 3- bottom shield plate, 4- the first sideslip slot, 5- the second sideslip slot,
6- erects sliding slot, 7- draw runner, 8- side shield plate.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, to this implement the technical solution in novel carry out it is clear, complete
Site preparation description, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative labor
Every other embodiment, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of high frequency transformer with function of shielding provided by the utility model, including high frequency transformation
Device ontology 1 and pedestal 2；Pedestal 2 includes bottom shield plate 3, the dynamic barricade of sideslip, side shield plate 8 and perpendicular Abdeckschieber plate；
Side shield plate 8 includes three pieces, and three blocks of side shield plates 8, which join end to end, encloses the frame structure of a side opening；Bottom shield plate 3 is pacified
Mounted in the bottom of two blocks of opposite side shield plates 8；Symmetrically offer in the horizontal direction on two blocks of opposite side shield plates 8
One sideslip slot 4 and the second sideslip slot 5, and symmetrically opened up along the vertical direction in two blocks of opposite side shield plates 8 close to opening
There is perpendicular sliding slot 6；The size of the dynamic barricade of sideslip and the size of the first sideslip slot 4 are adapted, and are erected the size of Abdeckschieber plate and are erected
The size of sliding slot 6 is adapted；
Draw runner 7 is symmetrically equipped in the two sides of high frequency transformer ontology 1；Size and setting height and the second cross of draw runner 7
The size and setting height of sliding slot 5 are adapted.
The high frequency transformer that the utility model is proposed first passes through draw runner 7 for high frequency transformer ontology 1 when being installed
It is inserted into the second sideslip slot 5, so that high frequency transformer ontology 1 is in frame structure；It is horizontal by first that barricade is moved in sideslip
Sliding slot 4 is inserted into frame structure, erects Abdeckschieber plate by perpendicular sliding slot 6 and is inserted into frame structure, moves barricade, perpendicular sliding by sideslip
Barricade, bottom shield plate 3 and side shield plate 8 constitute closed frame structure, so that high frequency transformer ontology 1 is in closing
In frame structure, avoid that existing high frequency transformer leakage inductance is big, parasitic capacitance is big and easily causes the electromagnetic interference of Switching Power Supply big
The problem of；It is on high frequency transformer ontology 1 there are gap between bottom shield plate 3 and perpendicular Abdeckschieber plate and side shield plate 8
The reserved place of pin.This dismountable structure of the high frequency transformer of the utility model, can either play shielding action, and can
It overhauls and replaces in time in the damage of high frequency transformer ontology 1 or failure.
Material used by bottom shield plate 3, the dynamic barricade of sideslip, side shield plate 8 and perpendicular Abdeckschieber plate is poly- third
Alkene.
The cross-sectional structure of high frequency transformer ontology 1 successively includes support frame, the first winding, the first shielding from inside to outside
Copper foil, the second winding, the tertiary winding, secondary shielding copper foil, the 4th winding and protective layer；First shielding copper foil and secondary shielding
Copper foil further reduces the leakage inductance and electromagnetic interference of high frequency transformer ontology 1, while playing the role of conductor.
Line used by first winding, the second winding, the tertiary winding and the 4th winding is enameled wire, and enameled wire is exhausted
Edge prevents line short.The cross-sectional structure of enameled wire is followed successively by copper core, PEI insulating layer, PAI insulating layer, enamel-cover from inside to outside
Line lubricant layer.
First winding, the second winding, the tertiary winding and the 4th winding wind at least one circle insulating tape, insulating tape
Every group of winding can further be isolated, increase insulation performance.
Above disclosed is only specific embodiment of the present utility model, but the protection scope of the utility model not office
It is limited to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in change
Change or modification, should be covered within the scope of the utility model.
Claims (8)
1. a kind of high frequency transformer with function of shielding, including high frequency transformer ontology and pedestal；It is characterized by: described
Pedestal includes bottom shield plate, the dynamic barricade of sideslip, side shield plate and perpendicular Abdeckschieber plate；The side shield plate includes three
Block, three blocks of side shield plates, which join end to end, encloses the frame structure of a side opening；The bottom shield plate is mounted on opposite two
The bottom of block side shield plate；The first sideslip slot and second are symmetrically offered in the horizontal direction on two blocks of opposite side shield plates
Sideslip slot, and perpendicular sliding slot is symmetrically offered along the vertical direction close to opening in two blocks of opposite side shield plates；The sideslip
The size of dynamic barricade and the size of the first sideslip slot are adapted, the size and the size phase of perpendicular sliding slot of the perpendicular Abdeckschieber plate
It adapts to；
Draw runner is symmetrically equipped in the two sides of the high frequency transformer ontology；Size and setting height and the second cross of the draw runner
The size and setting height of sliding slot are adapted.
2. a kind of high frequency transformer with function of shielding as described in claim 1, it is characterised in that: the bottom shield
Material used by plate, the dynamic barricade of sideslip, side shield plate and perpendicular Abdeckschieber plate is polypropylene.
3. a kind of high frequency transformer with function of shielding as described in claim 1, it is characterised in that: the high frequency transformer
The cross-sectional structure of ontology successively includes support frame, the first winding, the first shielding copper foil, the second winding, third from inside to outside
Winding, secondary shielding copper foil, the 4th winding and protective layer.
4. a kind of high frequency transformer with function of shielding as claimed in claim 3, it is characterised in that: the protective layer is fibre
Tie up layer.
5. a kind of high frequency transformer with function of shielding as claimed in claim 3, it is characterised in that: first winding,
Line used by second winding, the tertiary winding and the 4th winding is enameled wire.
6. a kind of high frequency transformer with function of shielding as claimed in claim 5, it is characterised in that: the cross of the enameled wire
Cross section structure is followed successively by copper core, PEI insulating layer, PAI insulating layer, enameled wire lubricant layer from inside to outside.
7. a kind of high frequency transformer with function of shielding as claimed in claim 3 or 5, it is characterised in that: described first around
Group, the second winding, the tertiary winding and the 4th winding wind at least one circle insulating tape.
8. a kind of high frequency transformer with function of shielding as described in claim 1, it is characterised in that: the high frequency transformer
Ontology is ellipsoidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821444829.0U CN208767138U (en) | 2018-09-05 | 2018-09-05 | A kind of high frequency transformer with function of shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821444829.0U CN208767138U (en) | 2018-09-05 | 2018-09-05 | A kind of high frequency transformer with function of shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208767138U true CN208767138U (en) | 2019-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821444829.0U Active CN208767138U (en) | 2018-09-05 | 2018-09-05 | A kind of high frequency transformer with function of shielding |
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| Country | Link |
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| CN (1) | CN208767138U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034938A (en) * | 2020-08-07 | 2020-12-04 | 东莞市硕擎能源科技有限公司 | UPS power supply and case with magnetic shielding function |
| WO2021103556A1 (en) * | 2019-11-28 | 2021-06-03 | 深圳威迈斯新能源股份有限公司 | Integrated transformer and vehicle-mounted charger having integrated transformer |
-
2018
- 2018-09-05 CN CN201821444829.0U patent/CN208767138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021103556A1 (en) * | 2019-11-28 | 2021-06-03 | 深圳威迈斯新能源股份有限公司 | Integrated transformer and vehicle-mounted charger having integrated transformer |
| CN112034938A (en) * | 2020-08-07 | 2020-12-04 | 东莞市硕擎能源科技有限公司 | UPS power supply and case with magnetic shielding function |
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