CN206250021U - A kind of high withstand voltage transformer - Google Patents
A kind of high withstand voltage transformer Download PDFInfo
- Publication number
- CN206250021U CN206250021U CN201621360510.0U CN201621360510U CN206250021U CN 206250021 U CN206250021 U CN 206250021U CN 201621360510 U CN201621360510 U CN 201621360510U CN 206250021 U CN206250021 U CN 206250021U
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- magnetic core
- shaped magnetic
- section
- coil winding
- withstand voltage
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Abstract
The utility model discloses a kind of high withstand voltage transformer, including two U-shaped magnetic cores being oppositely arranged, primary coil winding and secondary coil winding are respectively equipped with described two U-shaped magnetic cores；The section of the U-shaped magnetic core is relative two-by-two, and the air gap composition closed magnetic circuit at magnetic core interval, the U-shaped magnetic core and magnetic core interval is left in the middle of the section of U-shaped magnetic core, and solid insulation sealer is provided with outside the U-shaped magnetic core.The beneficial effects of the utility model：By setting two section U-shaped magnetic cores facing each other, and magnetic core interval is left in the middle of the section of U-shaped magnetic core, realize the High-Voltage Insulation of secondary coil winding in the way of dielectric fluid is filled completely in gap, effectively reduce cost, realize wattage transformer and isolate the pressure-resistant problem can not done Shang Qu, the pressure-resistant problem of isolation of wattage transformer is thoroughly solved, so that for the resistance to voltage source application of high isolation provides technical support.
Description
Technical field
The utility model is related to transmission system technical field, it particularly relates to a kind of high withstand voltage transformer.
Background technology
Transformer is exactly that one kind utilizes mutual electromagnetic inductance, voltage of transformation, the device of electric current and impedance.It is general to have primary and secondary
Two separate coils of level, when the alternating current on primary is logical, the alternating current just as frequency, transformer can be induced in secondary
Primary and secondary coil turn ratio be equal to voltage ratio.
In flexible transmission system regions, the demand of power supplies for high voltage circuit often occurs.It is required that the isolation of power supply is pressure-resistant
It is very high.The isolation of power supply relies primarily on its internal transformer and realizes isolation.Therefore, the pressure-resistant of transformer determines isolated from power
Pressure-resistant height.But current wattage transformer isolation is pressure-resistant can not to be done up, and the isolation of small-power transformer with small volume is pressure-resistant to ask
Topic is a technical bottleneck in industry.
For the problem in correlation technique, effective solution is not yet proposed at present.
Utility model content
The purpose of this utility model is to provide a kind of high withstand voltage transformer, can solve the problem that existing wattage transformer isolation is resistance to
Pressure such as can do Shang Qu at the technical problem.
The purpose of this utility model is achieved through the following technical solutions：
A kind of high withstand voltage transformer, it includes two U-shaped magnetic cores being oppositely arranged, the section two of described two U-shaped magnetic cores
With magnetic core interval between two two relative and relative sections, the air gap structure at the U-shaped magnetic core and magnetic core interval
Into closed magnetic circuit, primary coil winding and secondary coil winding are respectively equipped with described two U-shaped magnetic cores, outside the U-shaped magnetic core
Portion is provided with solid insulation sealer.
Further, the solid insulation sealer is the fluent material of silica gel, pitch, cement, resin or glass solution
Pour and form.
Further, the magnetic core interval is more than or equal to 0.1mm.
Further, the number of turn of the secondary coil winding is less than or equal to 50000 circles.
Further, the cross section of the U-shaped magnetic core is square, circular or rectangle.
The beneficial effects of the utility model：By setting two section U-shaped magnetic cores facing each other, and in U-shaped magnetic core
Magnetic core interval is left in the middle of section, realizes that the high pressure of secondary coil winding is exhausted in the way of dielectric fluid is filled completely in gap
Edge, effectively reduces cost, realizes wattage transformer and isolates the pressure-resistant problem can not done Shang Qu, thoroughly solves small-power transformation
The pressure-resistant problem of isolation of device, so that for the resistance to voltage source application of high isolation provides technical support.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of the high withstand voltage transformer according to the utility model embodiment；
In figure：
1st, U-shaped magnetic core；2nd, magnetic core interval；3rd, primary coil winding；4th, secondary coil winding；5th, solid insulation sealer.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art are obtained all belongs to
In the scope of the utility model protection.
As shown in figure 1, a kind of high withstand voltage transformer, including two U-shaped magnetic cores 1 being oppositely arranged, the U-shaped magnetic core 1
Section is relative two-by-two, and the cross section of the U-shaped magnetic core 1 does not limit, and can be circular, square, rectangle or other shapes,
Leave width in the middle of the section of U-shaped magnetic core 1 to be spaced more than or equal to 0.1mm magnetic cores, the sky at the U-shaped magnetic core 1 and magnetic core interval 2
Gas gap constitutes closed magnetic circuit；Primary coil winding 3 and secondary coil winding 4, institute are respectively equipped with described two U-shaped magnetic cores 1
The number of turn for stating secondary coil winding 4 is less than or equal to 50000 circles.
Solid insulation sealer 5 is provided with outside the U-shaped magnetic core 1, the solid insulation sealer 5 can be plastics, glass
Any one of fluent materials such as glass solution are poured and formed, and are preferably chosen plastic material, reduces cost, and dielectric fluid is filling out
The mode filled fills two gaps of U-shaped magnetic core, is uniformly distributed, and realizes the High-Voltage Insulation of secondary coil winding 4, effectively reduces
Cost, realizes wattage transformer and isolates the pressure-resistant problem can not done Shang Qu, with low cost.
A kind of high withstand voltage transformer described in the utility model, by setting two section U-shaped magnetic cores facing each other, and
Left in the middle of the section of U-shaped magnetic core magnetic core interval, gap completely by dielectric fluid fill in the way of realize secondary coil around
The High-Voltage Insulation of group, effectively reduces cost, realizes wattage transformer and isolates the pressure-resistant problem can not done Shang Qu, thoroughly solves
The pressure-resistant problem of isolation of wattage transformer, so that for the resistance to voltage source application of high isolation provides technical support.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of high withstand voltage transformer, it is characterised in that it includes two U-shaped magnetic cores being oppositely arranged（1）, it is described two U-shaped
Magnetic core（1）Relative two-by-two and relative two sections in section between with magnetic core interval（2）, the U-shaped magnetic core（1）
It is spaced with magnetic core（2）The air gap constitute closed magnetic circuit, described two U-shaped magnetic cores（1）On be respectively equipped with primary coil winding
（3）With secondary coil winding（4）, the U-shaped magnetic core（1）Outside is provided with solid insulation sealer（5）.
2. a kind of high withstand voltage transformer according to claim 1, it is characterised in that the solid insulation sealer（5）For
The fluent material of plastics, silica gel, pitch, cement, resin or glass solution is poured and formed.
3. a kind of high withstand voltage transformer according to claim 1, it is characterised in that the magnetic core interval（2）More than or wait
In 0.1mm.
4. a kind of high withstand voltage transformer according to claim 1, it is characterised in that the secondary coil winding（4）Circle
Number is less than or equal to 50000 circles.
5. a kind of high withstand voltage transformer according to claim 1, it is characterised in that the U-shaped magnetic core（1）Cross section be
Square, circular or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360510.0U CN206250021U (en) | 2016-12-13 | 2016-12-13 | A kind of high withstand voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360510.0U CN206250021U (en) | 2016-12-13 | 2016-12-13 | A kind of high withstand voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206250021U true CN206250021U (en) | 2017-06-13 |
Family
ID=59006237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621360510.0U Active CN206250021U (en) | 2016-12-13 | 2016-12-13 | A kind of high withstand voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206250021U (en) |
-
2016
- 2016-12-13 CN CN201621360510.0U patent/CN206250021U/en active Active
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