A kind of assembly type transformer
Technical field
The present invention relates to switch power technology field, and in particular to for a kind of assembly type transformer in Switching Power Supply.
Background technology
Traditional transformer is generally made up of FERRITE CORE, skeleton, winding.Winding sub-thread or multiply enamel-covered wire or three
Layer insulated copper wire forms on skeleton winding slot along the axial direction coiling of magnetic core center pillar, different around component layers coiling, between layers
Wind insulating tape insulation.The transformer winding complex process of this traditional winding mode, the difficult control of performance parameter of transformer
System, discreteness is big, and it is bad to be easily caused power source performance;When wire casing is wider, the Area comparison of the naked leakage of winding is big, electromagnetic noise spoke
Penetrate stronger, the electromagnetic interference for being easily caused power supply is strong;When for comparing in large power supply, because line footpath is big, complex process, no
Beneficial to automated production, high processing costs;Volume is big, and weight is big, causes the power density of power supply low.
As shown in Figure 4 and Figure 5, majority is by the winding of FERRITE CORE, multi-layer PCB generation to known planar transformer
Or the winding of multimetal offset plate generation is formed, when the number of turn that the winding of this transformer needs is more, then PCB or metal plate
The number of plies is more, and the leakage inductance between primary and secondary is big, and conversion efficiency is low, and processing and manufacturing difficulty is big, and cost is high;Moreover, PCB copper-clad by
Technique limits thickness, thus the winding resistance generated is bigger, is not suitable for flowing through big electric current;When primary and secondary
Between need insulation even reinforced insulation when, multi-layer PCB generation winding or multimetal offset plate generation winding be difficult meet
It is required that.
The content of the invention
The goal of the invention of the present invention is to provide a kind of assembly type transformer, it is possible to achieve automatic group of mechanical arm, robot
Dress, improves processing efficiency, reduces cost;Export high-power, high current and compact-sized high power density;Performance parameter is held
Stabilization easy to control, discreteness are small.
In order to reach above goal of the invention, the present invention provides a kind of assembly type transformer, including by the first magnetic core and second
The housing with cavity that magnetic core pieces together;Formed with magnetic pole in the housing;First is arranged with successively in the magnetic pole
Armature winding, insulation film, secondary windings, assists winding and/or the second armature winding.
Preferably, in addition to the first skeleton and the second skeleton, and it is respectively provided with the through hole passed through for the magnetic pole;Described logical
The edge in hole is along its axis direction formed with raised bobbin;First armature winding and the second armature winding are by outsourcing
The wire of insulating materials stacks close to root in the bobbin of first skeleton and the second skeleton and is wound into individual layer or more than two layers
Planar coil winding.
Preferably, first armature winding and the second armature winding stacked by wire be wound into individual layer plane around
Group composition, or folded be wound into individual layer plane windings in series by the wire of two and the above and formed.
Preferably, the wire of the outsourcing insulating materials is self-adhesion flat enamel-covered wire or self-adhesion circle enamel-covered wire.
Preferably, the secondary windings is to be stacked to be wound into the flat of individual layer or more than two layers by the wire of outsourcing insulating materials
Planar coil winding.
Preferably, the outsourcing insulating materials be three layers and more than three layers insulated wires of self-adhesion flat or self-adhesion it is circular three layers and
More than three layers insulated wires.
Preferably, the assists winding with two-sided thin plate PCB etchings by being formed;Or justified by self-adhesion flat enamel-covered wire or self-adhesion
Shape enamel-covered wire stacks and is wound into individual layer plane winding.
Preferably, first armature winding and the second armature winding wrap around first skeleton and the second skeleton
Bobbin on form the first skeleton component and the second skeleton component;Insulation film, secondary windings, assists winding and second bone
Frame component, which stacks gradually to be set on the bobbin of first skeleton, forms entirety.
Preferably, one is provided with the through hole edge of first skeleton can pass through the wire hole of described secondary windings the end of a thread;
The groove of stitch and fixed the end of a thread formed with connection winding the end of a thread on first skeleton and the second skeleton.
Preferably, first armature winding and the second armature winding are individually to be wound on the bobbin of first skeleton
A component is formed close to root side;Or it is wound on respectively on the bobbin of first skeleton and the second skeleton close to root one
Side forms two components;The buttock line head that rises of first armature winding and the second armature winding is respectively wound around first skeleton
On the stitch of the second skeleton;The bobbin winding head that rises of the secondary windings is led through the aperture on first skeleton or the second skeleton
Go out the groove to fixed the end of a thread.
From the above content of the invention, technical scheme provided by the invention has the advantages that:
First, armature winding is directly to be wound on using Self-binding cord on the bobbin of skeleton, can use automatic coil winding machine around bone
Frame, winding, insulation film are all stand-alone assemblies, it is possible to achieve mechanical arm, robot assemble automatically, improve processing efficiency, drop
Low cost;
Secondly, secondary windings can use three layers and more than three layers insulated wires of self-adhesion flat, can be very easy to realize just
Reinforced insulation requirement and high withstand voltage requirement between secondary;
Meanwhile winding uses flat insulated wire coiling, sectional area of wire can be made bigger, and the resistance of winding is small, fit
High-power, high current the transformer of output is made in conjunction;
Moreover winding uses the individual layer plane winding of flat insulated wire coiling, the occupation efficiency of winding is big, compact-sized,
Volume-diminished, the power density of transformer is improved, leans on closer between primary and secondary, leakage inductance is small, efficiency high, is cut around linear window
Area is small, and electromagnetic noise radiation is smaller;
In addition, the coiling and assembling of winding can all realize Machine automated production, thus performance parameter is easily controlled stabilization,
Discreteness is small.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the present invention will be implemented below
The required accompanying drawing used is briefly described in the description of example or prior art.It should be evident that drawings in the following description
Only part of the embodiment of the invention, for those of ordinary skill in the art, is not paying creative labor
Under the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structure chart of the embodiment of assembly type transformer of the present invention;
Fig. 2 is a kind of installation diagram of the embodiment of assembly type transformer of the present invention;
Fig. 3 is the outside drawing in kind after a kind of assembling of the embodiment of assembly type transformer of the present invention;
Fig. 4 is a kind of existing flat surface transformer structural representation;
Fig. 5 is existing another flat surface transformer structural representation.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In order to solve prior art problem, Fig. 1 is referred to, the present embodiment provides a kind of assembly type transformer, including by the
The housing with cavity that one magnetic core 1 and the second magnetic core 2 piece together, formed with magnetic pole 14 in housing.In magnetic pole 14 successively
It is arranged with the first armature winding 5, insulation film 8, secondary windings 6, the armature winding 9 of assists winding 7 and/or second.
More specifically, also including the first skeleton 3 and the second skeleton 4, and the through hole passed through for magnetic pole 14 is respectively provided with thereon,
At the edge of through hole along its axis direction formed with raised bobbin 11.The wherein magnetic pole of magnetic pole 14 including the first magnetic core 1 and the
The magnetic pole of two magnetic cores 2.One is provided with the through hole edge of the first skeleton 3 can pass through the wire hole of the end of a thread of secondary windings 6;First skeleton
3 and second the stitch 10 formed with connection winding the end of a thread on skeleton 4 and fixed the end of a thread groove 12.
Wherein the first armature winding 5 and the second armature winding 9 are the wire by outsourcing insulating materials in the He of the first skeleton 3
The bobbin 11 of second skeleton 4 stacks the planar coil winding for being wound into individual layer or more than two layers close to root, and portion is equal in the windings
Formed with the hole that can be passed through for magnetic pole 13..
First armature winding 5 and the second armature winding 9 stack by a wire is wound into individual layer plane winding composition, or
It is wound into individual layer plane windings in series by the wire of two and the above is folded and is formed.Preferably, the wire of outsourcing insulating materials is certainly
Viscous flat enamel-covered wire or self-adhesion circle enamel-covered wire.
Wherein secondary windings 6 is that the planar coil for being wound into individual layer or more than two layers is stacked by the wire of outsourcing insulating materials
Winding.Preferably, outsourcing insulating materials be circular three layers and three layers of three layers and more than three layers insulated wires of self-adhesion flat or self-adhesion with
Upper insulated wire.
Wherein assists winding 7 can be etched with two-sided thin plate PCB and formed, and be provided with can be through the first magnetic core 1 and the at middle part
The hole of the center magnetic pole 14 of two magnetic cores 2;It can also be stacked by self-adhesion flat enamel-covered wire or self-adhesion circle enamel-covered wire and be wound into individual layer
Plane winding.
First armature winding 5 and the second armature winding 9 are individually to be wound on the bobbin 11 of the first skeleton 3 close to root one
Side forms a component;Or it is wound on respectively on the bobbin 11 of the first skeleton 3 and the second skeleton 4 and forms two close to root side
Component;The pin for playing buttock line head and being respectively wound around the first skeleton 3 and the second skeleton 4 of first armature winding 5 and the second armature winding 9
On pin 10;The bobbin winding head that rises of secondary windings 6 exports to the recessed of fixed the end of a thread through the aperture on the first skeleton 3 or the second skeleton 4
Groove 12.
In assembling process, the first armature winding 5 and the second armature winding 9 wrap around the first skeleton 3 and the second bone
The component of the first skeleton 3 and the component of the second skeleton 4 are formed on the bobbin 11 of frame 4.First skeleton 3 is deposited after winding the first armature winding 5
In exposed bobbin 11, insulation film 8, secondary windings 6 and assists winding 7 are stacked gradually and are set on the exposed bobbin 11;
The wire hole 15 that the end of a thread 13 of secondary windings 6 has to pass through secondary windings the end of a thread exports to the recessed of the upper fixed line head of the first skeleton 3
Groove 12;Then, the component of the second skeleton 4 is reassembled, between the component of the first skeleton 3 and the junction of the component of the second skeleton 4
Be connected fixed using Instant cement or hot pressing to fix or be fitted close pressure solid;Again, by the first magnetic core 1, second magnetic core 2
Center magnetic pole 14 is inserted in the middle part perforate of the first skeleton 3 and the second skeleton 4, is assembled into transformer as shown in Figure 3.It is wherein exhausted
Edge film 8, secondary windings 6, assists winding 7, the component of the second skeleton 4 are assembled on the component of the first skeleton 3 and the and of the first magnetic core 1
Second magnetic core 2 is assembled on the first skeleton 3 and the second skeleton 4 and can assembled automatically using automation equipment.
The transformer that the present embodiment provides, its armature winding is directly wound on the bobbin 11 of skeleton using Self-binding cord, can
Around, skeleton, winding, insulation film 8 to be all stand-alone assembly with automatic coil winding machine, it is possible to achieve automatic group of mechanical arm, robot
Dress, improves processing efficiency, reduces cost;Secondly, secondary windings 6 can be insulated using three layers and more than three layers of self-adhesion flat
Line, the reinforced insulation requirement that can be very easy to realize between primary and secondary and high withstand voltage requirement;Meanwhile winding is insulated using flat
Line coiling, sectional area of wire can be made bigger, and the resistance of winding is small, be adapted to make high-power, high current the transformer of output;
Moreover winding uses the individual layer plane winding of flat insulated wire coiling, the occupation efficiency of winding is big, compact-sized, volume-diminished,
The power density of transformer is improved, leans on closer between primary and secondary, leakage inductance is small, efficiency high, and coiling window section product is small, electricity
Magnetic noise radiation is smaller;In addition, the coiling and assembling of winding can all realize Machine automated production, thus performance parameter is easy
Control is stable, and discreteness is small.
Embodiment described above, the restriction to the technical scheme protection domain is not formed.It is any in above-mentioned embodiment party
Modifications, equivalent substitutions and improvements made within the spirit and principle of formula etc., should be included in the protection domain of the technical scheme
Within.