Charger for mobile phone and PCB transformer thereofTechnical field
The present invention relates to a kind of charger for mobile phone and PCB transformer thereof.
Background technology
Along with people improve constantly the miniaturization of charger for mobile phone and the requirement of quick charge capability, the designing requirement of the power of the transformer in charger for mobile phone and the flexibility of current output capability and installation convenience is also improved constantly.Existing transformer cannot ensure the larger raising of power output and electric current while realizing miniaturization, cannot reach the requirement of quick charge.
Summary of the invention
The technical problem to be solved in the present invention be transformer in order to overcome charger for mobile phone of the prior art realize miniaturized while cannot reach the defect of the requirement of quick charge, provide a kind of charger for mobile phone and PCB transformer thereof.
A kind of PCB transformer, its feature is, comprise pcb board, first magnetic core lid, second magnetic core lid, a winding and secondary winding, described first magnetic core lid and described second magnetic core lid are equipped with a magnetic core center pillar, described pcb board offers a centre bore, described pcb board is furnished with a described winding of mutually insulated and secondary winding described at least one around described centre bore, and with described centre bore for symmetrical centre, described first magnetic core lid and described second magnetic core lid pass through fixing to cover respectively by described centre bore for respective magnetic core center pillar, and wrap up described pcb board.
In this programme, described first magnetic core lid and described second magnetic core lid pass through fixing to cover respectively by described centre bore for respective magnetic core center pillar, and wrap up described pcb board, whole transformer can be made integrally, be convenient to fixing and dismounting is installed, effectively increase thick magnetic core center pillar to improve output current and power output under can determining the prerequisite of volume of transformer for the PCB transformer of this kind of structure, realize the requirement of quick charge.
Preferably, described first magnetic core lid and described second magnetic core lid are that E shape is covered, described first magnetic core lid and described second magnetic core lid include first protruding and the second projection, first projection of described first magnetic core lid and the first projection of described second magnetic core lid are that relative laminating is fixed, and the second projection of described first magnetic core lid and the second projection of described second magnetic core lid are that relative laminating is fixed.
Preferably, first the first projection that is protruding and described second magnetic core lid of described first magnetic core lid adopts to glued joint fixes, and the second projection of described first magnetic core lid adopts to glued joint with the second projection of described second magnetic core lid and fixes.
In this programme, the first magnetic core lid and the second magnetic core lid first protruding with the second projection respectively relative fit and adopt to glued joint to fix wrap up the pcb board being full of a winding and secondary winding, facilitate installing/dismounting.
Preferably, described magnetic core center pillar is round rectangle perpendicular to the cross sectional shape covering plane.
Preferably, described first magnetic core lid and described second magnetic core lid are round rectangle lid.
Preferably, described magnetic core center pillar is circular perpendicular to the cross sectional shape covering plane.
Preferably, the material of described first magnetic core lid and the material of described second magnetic core lid are soft magnetic ferrite.
A kind of charger for mobile phone, its feature is, comprises described PCB transformer.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is: the present invention is when ensureing PCB transformer Miniaturization Design, the sectional area of thick magnetic core center pillar can be increased neatly to improve output current and the power output of PCB transformer, be easy for installation and removal, and it is fixing to make PCB transformer integrally be convenient to installation, greatly improves the practicality of PCB transformer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the PCB transformer of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the first magnetic core lid of the embodiment of the present invention 1.
Fig. 3 is the structural representation of the second magnetic core lid of the embodiment of the present invention 1.
Fig. 4 is the structural representation of the pcb board of the embodiment of the present invention 1.
Fig. 5 is the structural representation of the first magnetic core lid of the embodiment of the present invention 2.
Fig. 6 is the structural representation of the second magnetic core lid of the embodiment of the present invention 2.
Fig. 7 is the structural representation of the pcb board of the embodiment of the present invention 2.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Embodiment 1
As shown in Figure 1, a kind of PCB transformer, comprise PCB (PrintedCircuitBoard, printed circuit board) plate 3, first magnetic core lid 1, second magnetic core lid 2, a winding and secondary winding, pcb board 3 offers a centre bore 301 and be provided with the wire turn layout district 302 of a winding and secondary winding, pcb board 3 is furnished with a described winding of mutually insulated and secondary winding described at least one on described centre bore 301, and with described centre bore 301 for symmetrical centre, a described winding and secondary winding are all arranged in described wire turn and arrange in district 302, the shape of centre bore 301 is round rectangle.
First magnetic core lid 1 and the second magnetic core lid 2 are respectively equipped with magnetic core center pillar, and the magnetic core center pillar of the first magnetic core lid 1 is the magnetic core center pillar of the first magnetic core center pillar 101, second magnetic core lid 2 is the second magnetic core center pillar 201.First magnetic core lid 1 and the second magnetic core lid 2 by covering fixing by respective magnetic core center pillar respectively by described centre bore 301, and wrap up pcb board 3.By described pcb board 3 is covered, radio frequency interference can be suppressed preferably, and this PCB transformer integrally, install fixing by the miscellaneous part of the manhole node on pcb board 3 and charger for mobile phone, drastically increase the practicality of PCB transformer.
In this programme, the first magnetic core lid 1 and the second magnetic core lid 2 cover for E shape, and the cross sectional shape being wrapped part of described pcb board 3 is round rectangle, and the first magnetic core lid 1 and the second magnetic core lid 2 include first protruding and the second projection.
First magnetic core lid 1 comprises the second projection 103 of the first protruding 102 and first magnetic core lid of the first magnetic core lid, first magnetic core center pillar 101 between the second projection 103 of the first protruding 102 and first magnetic core lid of the first magnetic core lid, between the first magnetic core center pillar 101 and the first projection 102 of the first magnetic core lid and the wire turn that all can hold pcb board 3 between the first magnetic core center pillar 101 and the second projection 103 of the first magnetic core lid arrange district 302.
Second magnetic core lid 2 comprises the second projection 203 of the first protruding 202 and first magnetic core lid of the second magnetic core lid, second magnetic core center pillar 201 between the second projection 203 of the first protruding 202 and second magnetic core lid of the second magnetic core lid, between the second magnetic core center pillar 201 and the first projection 202 of the second magnetic core lid and the wire turn that all can hold pcb board 3 between the second magnetic core center pillar 201 and the second projection 203 of the second magnetic core lid arrange district 302.
First projection 202 of the first protruding 102 and second magnetic core lid of the first magnetic core lid adopts to glued joint fixes, and the second projection 103 of the first magnetic core lid and second protruding 203 of described second magnetic core lid adopts to glued joint fixes.By glueing joint, fixing and dismounting conveniently can be installed.
The magnetic core center pillar of the first magnetic core lid and the second magnetic core lid be round rectangle perpendicular to the cross sectional shape covering plane, the material of the first magnetic core lid 1 and the second magnetic core lid 2 is soft magnetic ferrite, and the shape of magnetic core center pillar and the material of the first magnetic core lid and the second magnetic core lid are not limited thereto.
In this programme, output current and the power output of PCB transformer can be changed by the thickness and flexible shapes changing magnetic core center pillar, the output current of PCB transformer can be increased by increasing thick magnetic core center pillar, improve the charging loaded current of charger for mobile phone to improve the power output of charger for mobile phone, under the prerequisite ensureing the miniaturization of PCB transformer, and the wire diameter that can increase copper cash in a thick winding and secondary winding when improving output current improves the current carrying capacity of PCB transformer, the caloric value of PCB transformer is reduced further while realizing quick charge.
A kind of charger for mobile phone, comprises described PCB transformer.
Embodiment 2
As shown in Figures 5 to 7, present embodiments provide a kind of PCB transformer, the PCB transformer of the present embodiment is substantially identical with the PCB transformer of embodiment 1, difference is: the first magnetic core lid 1 and the second magnetic core lid 2 of the present embodiment are round rectangle lid, the first magnetic core center pillar 101 and the second magnetic core center pillar 201 be circle perpendicular to the cross sectional shape covering plane.
First magnetic core lid 1 and the shape of the second magnetic core lid 2 and the shape of magnetic core center pillar are not limited to the above, can select, repeat no longer one by one here according to actual conditions.
A kind of charger for mobile phone, comprises described PCB transformer.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.