CN208126995U - A kind of low magnetic leakage high frequency transformer - Google Patents
A kind of low magnetic leakage high frequency transformer Download PDFInfo
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- CN208126995U CN208126995U CN201721752255.9U CN201721752255U CN208126995U CN 208126995 U CN208126995 U CN 208126995U CN 201721752255 U CN201721752255 U CN 201721752255U CN 208126995 U CN208126995 U CN 208126995U
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- voltage winding
- high frequency
- frequency transformer
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Abstract
The utility model relates to transformer technology fields, more particularly to a kind of low magnetic leakage high frequency transformer, including conductive column, the high-voltage winding coil being sheathed on outside the conductive column, enclose the conductive shell for being set to high-voltage winding coil and the first conductive plate and the second conductive plate that are located at the conductive shell both ends, the both ends of the conductive column are pierced by from the first conductive plate, the second conductive plate respectively, the conductive column is hollow sealing structure, is filled with heat-conducting medium in the conductive column.Low magnetic leakage high frequency transformer structure in the utility model is simple, and heat-conducting medium is full of in conductive column, the temperature of entire low magnetic leakage high frequency transformer can be further decreased, prolong its service life.
Description
Technical field
The utility model relates to transformer technology fields, and in particular to a kind of low magnetic leakage 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.
The high frequency transformer that the manufacturer of Switching Power Supply uses at present is usually all the first coiling high pressure on toroidal core
Winding, then the coiling low pressure winding outside high-voltage winding.Since high frequency switch power is usually used for the field of low-voltage and high-current
It closes, therefore low pressure winding generallys use heavy gauge wire around to 1 circle or 2 circles, but the low pressure winding for lacking the number of turns in this way is difficult and high-voltage winding
Sufficiently coupling, causes transformer leakage inductance very big.For this purpose, industry generates a kind of transformer of entitled beetle, though this transformer
It so can solve the big problem of leakage inductance, but the production of this transformer is complicated, causes production efficiency low, and production cost is higher.Cause
This, up for createing the high frequency transformer that a leakage inductance is small and manufacturing cost is low.
Utility model content
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide a kind of low magnetism leakages
High frequency transformer.
The purpose of this utility model is achieved through the following technical solutions：A kind of low magnetic leakage high frequency transformer, including conductive column,
The high-voltage winding coil being sheathed on outside the conductive column, enclose set on high-voltage winding coil conductive shell and be located at the conduction
First conductive plate and the second conductive plate at shell both ends, the both ends of the conductive column are worn from the first conductive plate, the second conductive plate respectively
Out, the first insulating layer, the high-voltage winding coil and conduction are equipped between the outer surface of the conductive column and high-voltage winding coil
It is equipped with second insulating layer between shell, is folded with the first bakelite plate between first conductive plate and high-voltage winding coil, described the
The second bakelite plate is folded between two conductive plates and high-voltage winding coil and conductive shell, one end of the conductive shell is conductive with first
Plate leans, and the other end is separated by the second bakelite plate and the second conductive plate, and the conductive column is hollow sealing structure, described to lead
Heat-conducting medium is filled in electric column.
Preferably, the heat-conducting medium is transformer oil.
Preferably, first conductive plate, second conductive plate are provided with through-hole, the both ends difference of the conductive column
Across two through-holes, the both ends lateral wall of the conductive column is provided with screw thread, and the nut that is threadedly engaged screws togather fixation.
Preferably, the high-voltage winding coil is multiple, and multiple high-voltage winding coils are sheathed on the conduction side by side
Column is provided with third bakelite plate between the adjacent high-voltage winding coil.
Preferably, the conductive shell is provided with circular hole, and the lead for the high-voltage winding coil is pierced by.
Preferably, each high-voltage winding coil includes an annular core and the coil that is wrapped on the annular core,
The coil is thin copper belt, and the outer surface of the thin copper belt is coated with packet paint.
Preferably, the conductive column is copper post or aluminium column.
Preferably, the wall thickness of the conductive column is 0.5-1mm.
Preferably, input terminal of the high-voltage winding coil as high frequency transformer, the both ends of the conductive column are in conduction
Part outside plate is the output end of high frequency transformer.
The beneficial effects of the utility model are：Low magnetic leakage high frequency transformer structure in the utility model is simple, thus
Save the cost, the conductive column are equivalent to low pressure winding coil, and sectional area is very big, so allowing through big electric current without sending out
Heat can effectively prevent temperature excessively high and damage, since one end and the first conductive plate of the conductive shell are connected, the other end with
Second conductive plate is separated by the second bakelite plate, can be used as a part of low pressure winding coil, and closely enclose set on high voltage winding
The periphery of group coil not only effectively reduces leakage field, but also as protection shell, to improve the protective capacities of transformer；?
It is full of heat-conducting medium in conductive column, the temperature of entire low magnetic leakage high frequency transformer can be further decreased, prolonged its service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Appended drawing reference is：1, conductive column；2, high-voltage winding coil；21, iron core；22, coil；3, conductive shell；4, it first leads
Battery plate；5, the second conductive plate；6, the first insulating layer；7, second insulating layer；8, the first bakelite plate；9, the second bakelite plate；10, it leads
Thermal medium；11, nut.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made into one below with reference to examples and drawings 1
The explanation of step, the content that embodiment refers to not are the restriction to the utility model.
See Fig. 1, a kind of low magnetic leakage high frequency transformer, including conductive column 1, the high-voltage winding being sheathed on outside the conductive column 1
Coil 2, enclose set on high-voltage winding coil 2 conductive shell 3 and be located at first conductive plate 4 and second at 3 both ends of conductive shell
Conductive plate 5, the both ends of the conductive column 1 are pierced by from the first conductive plate 4, the second conductive plate 5 respectively, the appearance of the conductive column 1
It is equipped with the first insulating layer 6 between face and high-voltage winding coil 2, second is equipped between the high-voltage winding coil 2 and conductive shell 3 absolutely
Edge layer 7 is folded with the first bakelite plate 8, second conductive plate 5 and height between first conductive plate 4 and high-voltage winding coil 2
It is folded with the second bakelite plate 9 between pressure winding coil 2 and conductive shell 3, one end of the conductive shell 3 offsets with the first conductive plate 4
It leans on, the other end is separated by the second bakelite plate 9 with the second conductive plate 5, and the conductive column 1 is hollow sealing structure, the conduction
Heat-conducting medium 10 is filled in column 1.
First insulating layer 6 is set between conductive column 1 and high-voltage winding coil 2, for making conductive column 1 and high-voltage winding line
It mutually insulate between circle 2, which can also be able to be to be set to conductive column set on painting in the insulating film of 1 outer peripheral surface of conductive column
The insulation material layer of 1 outer peripheral surface.Each high-voltage winding coil 2 includes an annular core 21 and the line being wrapped on the annular core
Circle 22, the annular core 21 can be the annular soft magnetic materials iron core such as ultracrystallite soft magnetic core or annular ferrite core.First electricity
Plank 8 is circular ring shape plate, and inner hole is just passed through for conductive column 1, and outer diameter is identical as 2 periphery of high-voltage winding coil, will
High-voltage winding coil 2 is separated with the first conductive plate 4.It is folded between second conductive plate 5 and adjacent high-voltage winding coil 2
Second bakelite plate 9.Second bakelite plate 9 is circular ring shape plate, and inner hole is just passed through for conductive column 1, and outer diameter, which is not less than, leads
The outer diameter of electric shell 3.I.e. described each first bakelite plate 8 is spaced apart high-voltage winding coil 2 and the first conductive plate 4, and conductive shell 3
End be resisted against on the first conductive plate 4；Second bakelite plate 9 separates the second conductive plate 5 with conductive shell 3, meanwhile, by second
Conductive plate 5 is separated with adjacent high-voltage winding coil 2.Second insulating layer is equipped between the high-voltage winding coil 2 and conductive shell
7, the outer surface of high-voltage winding coil 2 and the inner surface of conductive shell 3 are separated.The second insulating layer 7 is set on high-voltage winding
The insulating film of the whole outer peripheral surface of coil 2, can also be set to the insulation material layer of conductive shell inner surface for painting.
Low magnetic leakage high frequency transformer structure in the utility model is simple, thus save the cost, the conductive column 1 is quite
In low pressure winding coil, sectional area is very big, thus allow by big electric current without generate heat, temperature can be effectively prevent excessively high and
Damage, since one end and the first conductive plate 4 of the conductive shell 3 are connected, the other end and the second conductive plate 5 pass through the second electricity
Plank 9 separates, and can be used as a part of low pressure winding coil, and closely enclose set on the periphery of high-voltage winding coil 2, both effectively
Ground reduces leakage field, and as protection shell, to improve the protective capacities of transformer；Thermally conductive Jie is full of in conductive column 1
Matter 10 can further decrease the temperature of entire low magnetic leakage high frequency transformer, prolong its service life.
Preferably, the heat-conducting medium 10 is transformer oil.
The specific heat of transformer oil is big, can be used as coolant, and the speed that oil temperature rises is much more slowly than what thermally conductive column temperature rose
Speed can slow down the raising of transformer temperature.
Preferably, first conductive plate 4, second conductive plate 5 are provided with through-hole, the both ends of the conductive column 1
Two through-holes are each passed through, the both ends lateral wall of the conductive column 1 is provided with screw thread, and the nut 11 that is threadedly engaged screws togather
It is fixed.
First conductive plate 4 and the second conductive plate 5 are respectively rectangle tabular, and inner hole is worn for the both ends of conductive column 1
Out.The both ends of the conductive column 1 are respectively equipped with external screw thread in the surface outside the first conductive plate 4 and the second conductive plate 5, wear respectively
It crosses after the first conductive plate 4 and the second conductive plate 5 and fixation is screwed togather by nut 11 again.First conductive plate 4 and second in the present embodiment
Conductive plate 5 can be copper sheet, aluminium sheet, copper-aluminum composite board or other plate bodys to conduct electricity very well.
Preferably, the high-voltage winding coil 2 is multiple, and multiple high-voltage winding coils 2 are sheathed on described lead side by side
Electric column 1 is provided with third bakelite plate between the adjacent high-voltage winding coil 2.
High-voltage winding coil 2 is multiple, in use, multiple high-voltage winding coils 2 are connected in parallel, the conductive column 1 worn
Low pressure winding coil is constituted, since it is also cross the center of all high-voltage winding coils 2, that is, several secondary are 1
The coil of circle is connected in series, so both can by changing the number of high-voltage winding coil 2, arbitrarily adjust output voltage etc.
Grade can also adjust the size of output power by changing the number of high-voltage winding coil 2, and structure is simple, thus save at
This.Third bakelite plate is set between adjacent high-voltage winding coil 2, for adjacent high-voltage winding coil 2 is spaced apart.
Preferably, the conductive shell 3 is provided with circular hole, and the lead for the high-voltage winding coil 2 is pierced by.
Preferably, each high-voltage winding coil 2 includes an annular core and the coil being wrapped on the annular core, described
Coil is thin copper belt, and the outer surface of the thin copper belt is coated with packet paint.
Thin copper belt is the very strong conducting wire of insulating properties, and electric conductivity is good, very thin, small in size, is suitble to use in transformer.
Preferably, the conductive column 1 is copper post or aluminium column.
Conductive column 1 be copper post or aluminium column, electric conductivity is good, in other embodiments or Copper-Aluminum compound column or
The good material of other electric conductivities of person.
Preferably, the wall thickness of the conductive column 1 is 0.5-1mm.
The wall thickness of conductive column 1 is 0.5-1mm, and sectional area is very big, so allowing to have by big electric current without generating heat
Effect prevents temperature excessively high and damages.
Preferably, input terminal of the high-voltage winding coil 2 as high frequency transformer, the both ends of the conductive column 1 are in leading
Part outside battery plate is the output end of high frequency transformer.
1, above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other
Mode realizes that any obvious replacement is in the protection of the utility model without departing from the concept of the premise utility
Within the scope of.
Claims (9)
1. a kind of low magnetic leakage high frequency transformer, it is characterised in that：Including conductive column, the high-voltage winding being sheathed on outside the conductive column
Coil, enclose set on high-voltage winding coil conductive shell and be located at first conductive plate at the conductive shell both ends and second conductive
Plate, the both ends of the conductive column are pierced by from the first conductive plate, the second conductive plate respectively, the outer surface of the conductive column and high voltage winding
Group coil between be equipped with the first insulating layer, between the high-voltage winding coil and conductive shell be equipped with second insulating layer, described first
The first bakelite plate, second conductive plate and high-voltage winding coil and conductive shell are folded between conductive plate and high-voltage winding coil
Between be folded with the second bakelite plate, one end of the conductive shell leans with the first conductive plate, the other end pass through the second bakelite plate
It is separated with the second conductive plate, the conductive column is hollow sealing structure, is filled with heat-conducting medium in the conductive column.
2. low magnetic leakage high frequency transformer according to claim 1, it is characterised in that：The heat-conducting medium is transformer oil.
3. low magnetic leakage high frequency transformer according to claim 1, it is characterised in that：First conductive plate, described second
Conductive plate is provided with through-hole, and the both ends of the conductive column are each passed through two through-holes, the both ends outside of the conductive column
Wall is provided with screw thread, and the nut that is threadedly engaged screws togather fixation.
4. low magnetic leakage high frequency transformer according to claim 1, it is characterised in that：The high-voltage winding coil be it is multiple,
Multiple high-voltage winding coils are sheathed on the conductive column side by side, and third electricity is provided between the adjacent high-voltage winding coil
Plank.
5. low magnetic leakage high frequency transformer according to claim 4, it is characterised in that：The conductive shell is provided with circular hole, uses
It is pierced by the lead of the high-voltage winding coil.
6. low magnetic leakage high frequency transformer according to claim 4, it is characterised in that：Each high-voltage winding coil includes
One annular core and the coil being wrapped on the annular core, the coil are thin copper belt, and the outer surface of the thin copper belt coats
There is packet to paint.
7. low magnetic leakage high frequency transformer according to claim 1, it is characterised in that：The conductive column is copper post or aluminium column.
8. low magnetic leakage high frequency transformer according to claim 1, it is characterised in that：The wall thickness of the conductive column is 0.5-
1mm。
9. low magnetic leakage high frequency transformer according to claim 1, it is characterised in that：The high-voltage winding coil is as high frequency
The input terminal of transformer, part of the both ends of the conductive column outside conductive plate are the output end of high frequency transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721752255.9U CN208126995U (en) | 2017-12-13 | 2017-12-13 | A kind of low magnetic leakage high frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721752255.9U CN208126995U (en) | 2017-12-13 | 2017-12-13 | A kind of low magnetic leakage high frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208126995U true CN208126995U (en) | 2018-11-20 |
Family
ID=64209548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721752255.9U Active CN208126995U (en) | 2017-12-13 | 2017-12-13 | A kind of low magnetic leakage high frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208126995U (en) |
-
2017
- 2017-12-13 CN CN201721752255.9U patent/CN208126995U/en active Active
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