Novel ultra-thin flat flyback transformer
The utility model relates to a transformer technical field specifically indicates a novel ultra-thin dull and stereotyped flyback transformer.
The existing common transformer has the basic types as follows: comprises two groups of coils wound with conducting wires, and the two groups of coils are called together in an inductive mode. When an alternating current having a known frequency flows through one of the coils, an alternating voltage having the same frequency is induced in the other coil, and the magnitude of the induced voltage depends on the coupling and flux linkage between the two coils. The transformer belongs to a high-frequency flyback transformer, and has the defects that the working life and the cost are high, the size is large, the production process and the flow need manual work, and uncontrollable quality risks exist among winding and assembling stations in the manufacturing process.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is defect in traditional transformer structure and function, provides a design simple structure, the volume is less, convenient equipment, production efficiency is high novel ultra-thin dull and stereotyped flyback transformer.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a novel ultra-thin dull and stereotyped flyback transformer, includes the PCB board, be equipped with the winding in the PCB board, be equipped with the copper foil on the PCB board, PCB board upper left corner is equipped with control circuit, PCB board right-hand member is equipped with terminal group one, and the lower left corner is equipped with terminal group two, two tops of terminal group are equipped with the condenser on the PCB board, PCB board and copper foil, control circuit, terminal group one, terminal group two and condenser electric connection.
Compared with the prior art, the utility model the advantage lie in: this novel ultra-thin dull and stereotyped flyback transformer is equipped with the winding in the PCB board to adopt the copper foil to replace skeleton and magnetic core in the traditional transformer, adopt the adhesive tape between the PCB board winding, reduced the manufacturing cost of transformer, make its production process can accomplish through automation equipment at to a great extent, improved the efficiency of production, the convenience is carried out the accuse to its quality in its production process simultaneously.
The winding in the PCB board comprises a primary winding I, a primary winding II, a primary auxiliary power supply winding and a secondary winding, wherein the primary winding I, the primary winding II and the secondary winding adopt a flyback winding form.
Fig. 1 is a product assembly diagram of the novel ultra-thin flat flyback transformer of the present invention.
Fig. 2 is a circuit diagram of the novel ultra-thin flat flyback transformer of the utility model.
Fig. 3 is the utility model relates to a novel winding layout in ultra-thin flat flyback transformer's PCB inboard.
As shown in the figure: 1. the transformer comprises a PCB (printed circuit board), 2, windings, 3, copper foils, 4, a control circuit, 5, first and second terminal sets, 6, second and 7 terminal sets, a capacitor, 21, first and second primary windings, 22, second and 23 primary windings, a primary auxiliary power supply winding, 24 and a secondary winding.
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses when concrete implementation, a novel ultra-thin dull and stereotyped flyback transformer is provided, including PCB board 1, be equipped with winding 2 in the PCB board 1, be equipped with copper foil 3 on the PCB board 1, 1 upper left corner of PCB board is equipped with control circuit 4, 1 right-hand member of PCB board is equipped with a terminal group 5, and the lower left corner is equipped with terminal group two 6, terminal group two 6 top is equipped with condenser 7 on the PCB board 1, PCB board 1 and copper foil 3, control circuit 4, terminal group 5, terminal group two 6 and condenser 7 electric connection.
The winding 2 in the PCB 1 comprises a primary winding I21, a primary winding II 22, a primary auxiliary power supply winding 23 and a secondary winding 24, wherein the primary winding I21, the primary winding II 22 and the secondary winding 24 adopt a flyback winding form, so that a circuit is simpler, used components are reduced, the cost is reduced, the integral volume is reduced, and the amplitude of output voltage modulated by a duty ratio is higher.
The utility model discloses a theory of operation: this novel ultra-thin flat flyback transformer, for improving prior art's defect and not enough, with high frequency transformer's design, adopt the copper foil to replace skeleton and magnetic core in the traditional transformer, adopt the adhesive tape between the PCB board winding, the winding set is in the PCB inboard for this novel ultra-thin flat flyback transformer's design is more simple, and whole volume diminishes the attenuation, and the equipment is lighter, and the efficiency of equipment is higher. The traditional transformer achieves voltage and current conversion and output among all windings through a coil and a magnetic core, and the novel ultrathin flat flyback transformer achieves voltage and current output through copper foil wiring and a PCB.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.