CN209087545U - A kind of winding construction suitable for high-power high frequency transformer - Google Patents

A kind of winding construction suitable for high-power high frequency transformer Download PDF

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Publication number
CN209087545U
CN209087545U CN201822097977.6U CN201822097977U CN209087545U CN 209087545 U CN209087545 U CN 209087545U CN 201822097977 U CN201822097977 U CN 201822097977U CN 209087545 U CN209087545 U CN 209087545U
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China
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winding
permeability magnetic
power
magnetic
foil shape
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CN201822097977.6U
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Chinese (zh)
Inventor
陈为
郑健博
张丽萍
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Fuzhou University
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Fuzhou University
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Abstract

The utility model relates to a kind of winding constructions suitable for high-power high frequency transformer, including the wound foil shape conductor winding of foil and are set to the permeability magnetic material of foil shape conductor winding end.The utility model winding construction can substantially reduce foil shape winding overhang high frequency eddy current losses.

Description

A kind of winding construction suitable for high-power high frequency transformer
Technical field
The utility model relates to a kind of winding constructions suitable for high-power high frequency transformer.
Background technique
With the development of high-power electric and electronic component and its control technology, electric power electric transformer (Power Electronic Transformer, PET) or solid-state transformer (Solid State Transformer, SST) conduct one kind Highly controllable power transformation equipment can reduce volume and improve power quality, in recent years in intelligence compared with traditional Industrial Frequency Transformer It is had received widespread attention in the fields such as power distribution network.High-power high frequency transformer is the core devices of PET, in the primary electricity of isolation Vital role is play in terms of pressure and transimission power.Currently, for power electronic equipments such as inverter, Switching Power Supplies It is more that conventional low small-power high frequency transformer magnetic core type selecting enriches (E type, U-shaped, PQ type, PM type, RM type etc.), winding arrangement Become (lamination, sandwich, coordinated transposition etc.), conductor structure multiplicity (copper foil, rope-lay strand, copper-clad aluminum conductor, PCB winding etc.), if It is mature to count process CIMS.But for the high pressures such as PET, large capacity application, loss, insulation and the heat dissipation of high frequency transformer are Critical issue.To high current application, foil shape (such as copper foil, aluminium foil, copper-clad aluminium foil) conductor winding simple process, current-carrying capability is big, It is easy coiling and heat dissipation is convenient.For high-voltage isulation, required between former and deputy side winding and between winding and magnetic core there are Enough biggish insulation distances.High-power high frequency transformer mostly uses U-shaped or E-type magnetic core and the wound foil shape of foil at present Winding scheme considers that there are biggish insulation distances for winding overhang and main magnetic circuit magnetic core needs, thus foil shape conductor for insulation There are the biggish magnetic fields vertically into foil shape conductive surface close to the region of core portion for winding, lead to winding overhang vortex damage Consumption is serious, so that winding loss is serious with fever greatly.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of windings suitable for high-power high frequency transformer Structure can substantially reduce foil shape winding overhang high frequency eddy current losses.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of winding construction suitable for high-power high frequency transformer, include: the wound foil shape conductor winding of foil and It is set to the permeability magnetic material of foil shape conductor winding end.
Further, the permeability magnetic material of stating is sheet, and permeability magnetic material width m meets m >=W, and wherein W is foil shape winding End thickness.
Further, the permeability magnetic material is channel-shaped, and permeability magnetic material width m meets m-2n > W, the two sides height of slot h1Meet h1- h > D, wherein h is permeability magnetic material thickness value, and n is the width of slot, D be foil shape conductor winding end and magnetic conductive groove it Between insulation distance.
Further, the permeability magnetic material thickness h value meets permeability magnetic material unsaturation.
Further, distance A and C meet insulating requirements between the foil shape conductor winding and permeability magnetic material and main magnetic core, And the distance between foil shape conductor winding and permeability magnetic material D meet insulating requirements.
Further, the permeability magnetic material includes silicon steel sheet, ferrite, powder core, nanocrystalline, amorphous.
Further, the relative permeability of the permeability magnetic material is greater than 50.
The utility model has the advantages that compared with prior art
The utility model helps to reduce using foil shape conductor is vortexed damage caused by the magnetic-field component of foil shape conductor plane Consumption, and permeability magnetic material is set, so that the eddy-current loss of foil shape winding overhang greatly reduces.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that permeability magnetic material is sheet in an embodiment of the present invention
Fig. 2 is the structural schematic diagram that permeability magnetic material is channel-shaped in an embodiment of the present invention
Fig. 3 is that the wound foil shape winding overhang of foil does not have the winding window magnetic force of permeability magnetic material in an embodiment of the present invention Line distribution map;
Fig. 4 is the winding window magnetic line of force that the wound foil shape winding overhang of foil has permeability magnetic material in an embodiment of the present invention Distribution map;
Fig. 5 is the top view of winding construction simple form in an embodiment of the present invention;
Fig. 6 is permeability magnetic material structural schematic diagram in an embodiment of the present invention;
In figure: 3- transformer main magnetic core magnetic circuit, 4- permeability magnetic material, 5- foil shape conductor winding.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and embodiments.
Referring to Fig.1 and 2, the utility model provides a kind of winding knot suitable for high-power high frequency transformer Structure includes: the wound foil shape conductor winding of foil and the permeability magnetic material for being set to foil shape conductor winding end.
In an embodiment of the present invention, as shown in Fig. 6 (a), the permeability magnetic material of stating is sheet, and permeability magnetic material width M meets m >=W, and wherein W is foil shape winding overhang thickness;The permeability magnetic material thickness h value meets permeability magnetic material unsaturation.
In an embodiment of the present invention, as shown in Fig. 6 (b), the permeability magnetic material is channel-shaped, and permeability magnetic material width m Meet m-2n > W, the two sides height h of slot1Meet h1- h > D, wherein h is permeability magnetic material thickness value, and n is the width of slot, and D is Insulation distance between foil shape conductor winding end and magnetic conductive groove;The permeability magnetic material thickness h value meets permeability magnetic material unsaturation.
In an embodiment of the present invention, distance A and C are full between the foil shape conductor winding and permeability magnetic material and main magnetic core Sufficient insulating requirements, and the distance between foil shape conductor winding and permeability magnetic material D meet insulating requirements, former and deputy side is around group distance B Insulating requirements should be met.
In an embodiment of the present invention, the permeability magnetic material includes silicon steel sheet, ferrite, powder core, nanocrystalline, non- It is brilliant.
In an embodiment of the present invention, the relative permeability of the permeability magnetic material is greater than 50.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the patents it is equal Deng variation and modification, it should all belong to the covering scope of the utility model.

Claims (5)

1. a kind of winding construction suitable for high-power high frequency transformer characterized by comprising the wound foil shape conductor of foil Winding and the permeability magnetic material for being set to foil shape conductor winding end.
2. a kind of winding construction suitable for high-power high frequency transformer according to claim 1, it is characterised in that: The permeability magnetic material is sheet, and permeability magnetic material width m meets m >=W, and wherein W is foil shape winding overhang thickness.
3. a kind of winding construction suitable for high-power high frequency transformer according to claim 1, it is characterised in that: The permeability magnetic material is channel-shaped, and permeability magnetic material width m meets m-2n > W, the two sides height h of slot1Meet h1- h > D, wherein H is permeability magnetic material thickness value, and n is the width of slot, insulation distance of the D between foil shape conductor winding end and magnetic conductive groove.
4. a kind of winding construction suitable for high-power high frequency transformer according to claim 2 or 3, feature exist In: the permeability magnetic material thickness h value meets permeability magnetic material unsaturation.
5. a kind of winding construction suitable for high-power high frequency transformer according to claim 1, it is characterised in that: Distance A and C meet insulating requirements between the foil shape conductor winding and permeability magnetic material and main magnetic core, and foil shape conductor winding with lead The distance between magnetic material D meets insulating requirements.
CN201822097977.6U 2018-12-14 2018-12-14 A kind of winding construction suitable for high-power high frequency transformer Active CN209087545U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822097977.6U CN209087545U (en) 2018-12-14 2018-12-14 A kind of winding construction suitable for high-power high frequency transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822097977.6U CN209087545U (en) 2018-12-14 2018-12-14 A kind of winding construction suitable for high-power high frequency transformer

Publications (1)

Publication Number Publication Date
CN209087545U true CN209087545U (en) 2019-07-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822097977.6U Active CN209087545U (en) 2018-12-14 2018-12-14 A kind of winding construction suitable for high-power high frequency transformer

Country Status (1)

Country Link
CN (1) CN209087545U (en)

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