A kind of isolating transformer
Technical field
The utility model relates to transformer, more specifically refers to a kind of isolating transformer.
Background technology
General isolating transformer, in order to strengthen the coupling of armature winding and secondary winding, improves the efficiency of transformer, armature winding and secondary winding under the condition meeting electric clearance, armature winding and secondary winding gap little as far as possible.This transformer is less at armature winding input supply harmonic, when power supply is purer, can obtain higher delivery efficiency.But when input supply harmonic is larger, during unloaded input, due to harmonic influence, the loss of transformer is comparatively large, the easy magnetic saturation of iron core.
Utility model content
In order to overcome the impact of harmonic wave on transformer, the utility model provides a kind of isolating transformer, and by the structural design of its uniqueness, the utility model effectively can reduce the impact of harmonic wave on transformer, reduce core loss when no-load transformer and load, improve iron core magnetic saturation point.
The technical solution adopted in the utility model is: a kind of isolating transformer, comprise iron core, secondary winding and armature winding, it is characterized in that: this secondary winding is arranged on the inside of this iron core, this armature winding winding is in the periphery of this secondary winding, insulating barrier is provided with between this secondary winding and this armature winding, be provided with separator between the side of this secondary winding and the side of armature winding, the two ends end to end of this secondary winding and the two ends end to end of this armature winding are provided with insulating stay.
This separator is epoxy plate.
This armature winding is copper strips.
This secondary winding is flat type copper wire.
Of the present utility modelly by beneficial effect be: the utility model is by increasing insulating stay at the two ends end to end of armature winding and secondary winding, separator is increased in the two sides of armature winding and secondary winding, meanwhile, by elementary low pressure winding outside secondary high pressure winding.Like this, reduce coupling that is elementary and secondary winding, increase elementary low-pressure end winding leakage inductance.Because magnetic resistance increases, thus greatly reduce harmonic wave to the impact of transformer.The utility model under the condition not increasing product design size, effectively can reduce transformer noload losses, improves the efficiency of transformer.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model.
Embodiment
Be illustrated in figure 1 one of the present utility model preferably specific embodiment, a kind of isolating transformer, comprise iron core 1, secondary winding 2 and armature winding 3, wherein, this secondary winding 2 is arranged on the inside of this iron core 1, this armature winding 3 winding is in the periphery of this secondary winding 2, insulating barrier 5 is provided with between this secondary winding 2 and this armature winding 3, be provided with separator 4 between the side of this secondary winding 2 and the side of armature winding 3, the two ends end to end of this secondary winding 2 and the two ends end to end of this armature winding 3 are provided with insulating stay 6.
This separator 4 is epoxy plate.
This armature winding is copper strips.
This secondary winding is flat type copper wire.
The utility model will realize, and by increasing insulating stay at the two ends end to end of armature winding and secondary winding, increases separator in the two sides of armature winding and secondary winding, meanwhile, by elementary low pressure winding outside secondary high pressure winding.Like this, reduce coupling that is elementary and secondary winding, increase elementary low-pressure end winding leakage inductance.Because magnetic resistance increases, thus greatly reduce harmonic wave to the impact of transformer.The utility model under the condition not increasing product design size, effectively can reduce transformer noload losses, improves the efficiency of transformer.
Embodiment of the present utility model and accompanying drawing are just in order to show design concept of the present utility model, and protection range of the present utility model should not be confined to this embodiment.
By above describe can find out that purpose of design of the present utility model can effectively be implemented.The portion shows of embodiment the purpose of this utility model and implement function and structure theme, and comprise other equivalent replacement.
Therefore, right of the present utility model forms the equivalence comprising other and implements, concrete right range reference claim.