Printing light-emitting packaging device based on magnetic resonance wireless power supply technology and design methodTechnical Field
The invention relates to the technical field of wireless power supply luminous display packaging, in particular to a printing luminous packaging device based on a magnetic resonance wireless power supply technology and a design method.
Background
Magnetic resonance wireless charging technology, consisting of an energy transmitting device and an energy receiving device, which can exchange energy with each other when both devices are tuned to the same frequency, or resonate at a specific frequency.
The carbon-based water-based conductive ink can conduct electricity through graphite particles in the ink, and the conductivity of the ink is close to that of copper, so that a flexible printed circuit can be realized.
The printing OLED technology can only realize partial printing of the display device, namely the printing of the OLED material, but does not form a breakthrough on the printing of the TFT backboard. Compared with the traditional evaporation process, the printing type has the advantages of simple process, low cost, high material utilization rate and more suitability for large-size panels, and once the bottleneck of mass production is crossed in OLED printing, great development opportunities are met.
However, if a conventional light-emitting circuit and a wireless charging circuit are adopted, or a battery is arranged in a package, the cost is increased, potential safety hazards are brought to transportation, and meanwhile, the on-off of the circuit is difficult to operate externally; the wires of the external power supply can bring inconvenience to carrying and transportation, and meanwhile, if the bulbs or the diodes are used, the overall shape of the packing box can be affected, and carrying and transportation can be hindered.
Disclosure of Invention
The invention aims to solve the technical problem of providing a printing luminous packaging device based on a magnetic resonance wireless power supply technology and a design method aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a printing light-emitting packaging device based on a magnetic resonance wireless power supply technology, which comprises a printing coil, a printing circuit, a printing capacitor and a printing light-emitting module, wherein the printing coil, the printing circuit, the printing capacitor and the printing light-emitting module are arranged in a packaging box body; the printed coil, the printed capacitor and the printed light-emitting module are mutually connected through a printed circuit, the printed coil and the printed capacitor are mutually connected in parallel to form a receiving end of magnetic resonance wireless power supply, a transmitting end of the magnetic resonance wireless power supply is arranged outside the packaging box body, the receiving end transmits the electric energy to the printed light-emitting module by receiving the electric energy of the transmitting end, and the function of commodity packaging light-emitting display is realized through an electroluminescence principle; wherein: the printed coil, the printed circuit and the printed capacitor are printed on a piece of PET plastic film by conductive ink, and the PET plastic film is attached inside the packaging box body.
Furthermore, the printing light-emitting module comprises a three-layer structure, wherein a conductive ink cathode, an OLED light-emitting layer and an indium tin oxide anode are respectively arranged from the part close to the packaging box body to the part far away from the packaging box body, and are attached to the outer surface of the packaging box body through three times of printing.
Furthermore, the printed capacitor comprises a front electrode plate and a back electrode plate which are respectively arranged on two sides of the PET plastic film; a plurality of holes are formed in the PET plastic film; the printed coil, the front electrode plate of the printed capacitor and the printed light-emitting module are connected through a printed circuit and are all arranged on the same side of the PET plastic film; the back side polar plate of the printed capacitor is arranged on the other side of the PET plastic film, the front side polar plate and the back side polar plate are connected with each other through a printed circuit penetrating through the hole, and the hole is filled with conductive ink.
Furthermore, the printed coil is a planar rectangular coil wound with a plurality of turns, and two ends of the printed coil are respectively positioned at the outer side of the printed coil and the central position of the printed coil; the outer side end of the printed coil is connected with the positive electrode plate of the printed capacitor; the number of the holes is three, and the three holes comprise a first hole, a second hole and a third hole; the connecting line of the central end of the printed coil passes through the first hole, and one end of the printed circuit passes through the second hole, so that the central end of the printed coil and the printed circuit realize jumper connection on the surface of the reverse side polar plate; the second hole and the third hole are connected through a printed circuit, and the printed circuit penetrates through the third hole, so that the reverse side pole plate and the printed circuit are connected with each other; the parallel connection of the printed capacitor and the printed coil with two poles respectively arranged on the two surfaces is realized.
Further, the conductive ink of the present invention is a carbon-based aqueous conductive ink.
Further, the fixing arrangement mode of the PET plastic film in the packaging box body comprises the following steps: the packaging box body is arranged on one surface of the packaging box body or a plurality of surfaces of the packaging box body; if the packaging box is arranged on a plurality of surfaces of the packaging box body, the printed circuits on the PET plastic films at the folding positions of two adjacent surfaces are provided with ink layer thickening positions through thickening treatment.
Further, the printed coil, the printed capacitor and the printed circuit of the present invention are processed by one-time printing.
The invention provides a design method of a printing luminous packaging device based on a magnetic resonance wireless power supply technology, which comprises the following steps:
step 1, determining an inductance value L of a printed coil and a capacitance value C of a printed capacitor according to the working frequency of magnetic resonance wireless power supply;
step 2, determining the outer diameter of the printed coil according to the size of the packaging box body;
step 3, calculating the number of turns, the line width and the line spacing of the printed coil, and determining the shape and the size of the printed capacitor; the calculation formula is as follows:
Wherein a ═ a
0-N(g+ω),b=b
0-N(g+ω),
a0The dimension of the outline of the long side of the rectangular printed coil is the dimension; b0The outline size of the short side of the rectangular printed coil is obtained; a is the average length of the rectangular printed coil; b is the average width of the rectangular printed coil; omega is the width of the wire; g is the line spacing; t is the cross-sectional height; n is the number of turns of the coil; mu.s0For vacuum permeability, values of 4 π 10-10(ii) a The value of p depends on the actual coil processing technology and is between 1.75 and 1.85; the obtained inductance unit isHenry;
capacitance C ═ ε rS/4 π kd
Wherein, epsilonr is the dielectric constant of the plastic film, d is the thickness of the plastic film, S is the area of the printed capacitor, and k is the electrostatic force constant;
step 4, determining the shape and size of the printed circuit according to the size of the packaging box body;
and 5, drawing by using plane software according to the calculated parameters, making a plate, printing, laminating, and connecting and printing the light-emitting module.
The invention has the following beneficial effects: according to the printing luminous packaging device and the design method based on the magnetic resonance wireless power supply technology, the luminous display elements are added to the commodity package, so that the package is endowed with stronger attraction, and meanwhile, the potential safety hazard of a built-in battery and the inconvenience caused by external power supply wires and a bulb diode are avoided; compare coil and the circuit that the copper line is constituteed, electrically conductive ink printed circuit is almost totally flat, does not occupy any space inside the packing box, and weight is very light simultaneously, thereby can not increase too much weight for whole package because of wireless power supply module and hinder the transportation, in addition, electrically conductive ink printed circuit's cost is very cheap, can not let the packing increase too much cost when bringing the function for the packing. The printed light emitting module can display a very exquisite light emitting pattern with extremely low power consumption, and has a better visual effect than a single bulb or diode.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic representation of the front side print of a printed plastic film of an embodiment of the present invention;
FIG. 2 is a schematic reverse side print of a printed plastic film according to an embodiment of the present invention;
FIG. 3 is a schematic view of the relative positions of a printed plastic film and a packaging box according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a printed light module according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a printing method according to an embodiment of the present invention;
FIG. 6 is a schematic circuit diagram of an embodiment of the present invention;
in the figure: 1-printing a coil, 2-printing a positive electrode plate, 3-printing a light-emitting module, 4-holes, 5-printing an ink layer thickening part, 6-printing a negative electrode plate, 7-packaging a box body and 8-printing a PET plastic film.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-3, the printed light-emitting packaging device based on the magnetic resonance wireless power supply technology of the embodiment of the invention comprises a printedcoil 1, a printed circuit, a printed capacitor and a printed light-emitting module 3 which are arranged inside apackaging box 7; the printedcoil 1, the printed capacitor and the printed light-emitting module 3 are mutually connected through a printed circuit, the printedcoil 1 and the printed capacitor are mutually connected in parallel to jointly form a receiving end of magnetic resonance wireless power supply, a transmitting end of the magnetic resonance wireless power supply is arranged outside thepackaging box body 7, the receiving end transmits the electric energy to the printed light-emittingmodule 3 by receiving the electric energy of the transmitting end, and the function of commodity packaging light-emitting display is realized through an electroluminescence principle; wherein: the printedcoil 1, the printed circuit and the printed capacitor are all printed on a piece of PETplastic film 8 by conductive ink, and the PETplastic film 8 is attached inside thepackaging box body 7.
As shown in fig. 4, thelight emitting module 3 is not on the plastic film, and this position is used to correspond to the outer surface of the package box, and the printedlight emitting module 3 includes a three-layer structure, which is a conductive ink cathode, an OLED light emitting layer, and an indium tin oxide anode from the position close to thepackage box 7 to the position far from thepackage box 7, and is attached to the outer surface of thepackage box 7 by three times of printing.
The printed capacitor comprises afront electrode plate 2 and aback electrode plate 6 which are respectively arranged on two sides of a PETplastic film 8; a plurality ofholes 4 are formed in the PETplastic film 8; the printedcoil 1, thefront electrode plate 2 of the printed capacitor and the printed light-emitting module 3 are connected through a printed circuit and are all arranged on the same side of the PETplastic film 8; theback plate 6 of the printed capacitor is arranged on the other side of the PETplastic film 8, thefront plate 2 and theback plate 6 are connected with each other through a printed circuit penetrating through thehole 4, and thehole 4 is filled with conductive ink.
Because conventional electric capacity is too big, be not suitable for on the printed packaging, so need adopt printed capacitance, but the electric capacity of condenser needs the capacitance value big enough, needs great area, and designs on same side, and the area is big enough. Therefore, the invention adopts the mode of arranging the capacitors on the front and back surfaces, and can meet the requirement on the capacitance value on the premise of ensuring small volume.
The printedcoil 1 is a planar rectangular coil wound with a plurality of circles, and two ends of the printed coil are respectively positioned at the outer side of the printed coil and the central position of the printed coil; the outer side end of the printed coil is connected with thefront electrode plate 2 of the printed capacitor; the number of theholes 4 is three, and the holes comprise a first hole, a second hole and a third hole; the connecting line of the central end of the printed coil passes through the first hole, and one end of the printed circuit passes through the second hole, so that the central end of the printed coil and the printed circuit realize jumper connection on the surface of the reverse sidepolar plate 6; the second hole and the third hole are connected through a printed circuit, and the printed circuit penetrates through the third hole, so that the back sidepolar plate 6 and the printed circuit are connected with each other; the parallel connection of the printed capacitor and the printedcoil 1 with two poles respectively arranged on two surfaces is realized.
The conductive ink is carbon-based water-based conductive ink.
The fixed mode of setting of PETplastic film 8 insidepacking carton 7 includes: arranged on one face of thepacking box body 7 or on a plurality of faces of thepacking box body 7; when the printed circuit board is provided on a plurality of surfaces of thepackaging box body 7, the printed circuit boards on the PETplastic films 8 at the folding positions of the two adjacent surfaces are provided with the ink layer thickenedparts 5 through thickening treatment.
The printedcoil 1, the printed capacitor, and the printed circuit are formed by one-time printing.
The design method of the printing luminous packaging device based on the magnetic resonance wireless power supply technology comprises the following steps:
step 1, determining an inductance value L of a printed coil and a capacitance value C of a printed capacitor according to the working frequency of magnetic resonance wireless power supply;
step 2, determining the outer diameter of the printed coil according to the size of the packaging box body;
step 3, calculating the number of turns, the line width and the line spacing of the printed coil, and determining the shape and the size of the printed capacitor; the calculation formula is as follows:
Wherein a ═ a
0-N(g+ω),b=b
0-N(g+ω),
a0The dimension of the outline of the long side of the rectangular printed coil is the dimension; b0The outline size of the short side of the rectangular printed coil is obtained; a is the average length of the rectangular printed coil; b is the average width of the rectangular printed coil; omega is the width of the wire; g is the line spacing; t is the cross-sectional height; n is the number of turns of the coil; mu.s0For vacuum permeability, values of 4 π 10-10(ii) a The value of p depends on the actual coil processing technology and is between 1.75 and 1.85; the inductance unit obtained is Henry;
capacitance C ═ ε rS/4 π kd
Wherein, epsilonr is the dielectric constant of the plastic film, d is the thickness of the plastic film, S is the area of the printed capacitor, and k is the electrostatic force constant;
step 4, determining the shape and size of the printed circuit according to the size of the packaging box body;
and 5, drawing by using plane software according to the calculated parameters, making a plate, printing, laminating, and connecting and printing the light-emitting module.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.