Resonance inductor integrated transformer module

Abstract

The present invention relates to a resonant inductor integrated transformer module comprising: a transformer; the resonance inductor is arranged on one side of the transformer, is in a spiral coil shape and is used for performing resonance action with electrostatic capacity built in the transformer, and the transformer comprises a flat plate-shaped primary coil with a first hollow part formed in the center; and a flat-plate-shaped secondary coil that generates an induced current by means of a current applied to the primary coil and has a second hollow portion formed in the center, the primary coil being formed by winding a first adhesive-type coated square wire in a coil form so as to form a first hollow portion in the center, the first adhesive-type coated square wire comprising: a copper fine wire square block; the thin copper wire is formed by arranging thin copper wire metal wires in contact with each other, the whole arrangement is square, and the thin copper wire metal wires are formed by twisting thin copper wires into a plurality of strands. The insulating sheath is coated along the outer surface of the copper thin wire metal wire square block; and an adhesive layer for applying an adhesive to the outer peripheral surface of the insulating sheath.

Description

Technical Field

[0001] This invention relates to a transformer. Background Technology

[0002] Plug-in hybrid electric vehicles (PHEVs) and electric vehicles (EVs) (hereinafter collectively referred to as electric vehicles) require a charging device that can charge the high-voltage battery that drives the vehicle's motor using 200V alternating current (AC), and this is called an on-board charger (OBC).

[0003] The OBC built into the electric vehicle has an inductor-inductor-capacitor (LLC) converter circuit with a transformer for converting high-frequency AC voltage to a higher voltage and providing physical insulation between the 220V AC and the high-voltage battery.

[0004] However, since the transformer and inductor in the LLC converter circuit set in the OBC of electric vehicles are physically separated from each other, there is a problem of increased size of the OBC and increased number of mounting components on the PCB. Summary of the Invention

[0005] This invention addresses the problems of the prior art described above, and provides a resonant inductor integrated transformer module with the following objectives:

[0006] First, by setting a resonant inductor in the transformer itself, the transformer's built-in electrostatic capacitance and resonance effect can be realized, thereby providing a high-efficiency, low-heat transformer.

[0007] Secondly, by integrating the resonant inductor and transformer into a single unit, the space occupied is reduced, which is beneficial for circuit design on the PCB substrate. Furthermore, when the circuit is designed as a single unit, the size of the components and the PCB can be reduced.

[0008] Third, the phenomenon of controlling reflection characteristics can be based on the zero-crossing point.

[0009] Fourth, while maintaining the characteristics of the transformer and resonant inductor, the heat generated by the transformer is dissipated, thereby improving the heat dissipation efficiency of the transformer.

[0010] Fifth, the primary coil, secondary coil, and resonant inductor of the transformer are all shielded by the magnetic core, which can improve the efficiency and temperature characteristics caused by ideal resonance.

[0011] Sixth, the copper wires of the primary and secondary coils are shaped into square shapes, covered with an insulating outer sheath, and an adhesive layer is formed on top of it. The first and second adhesive-type covered square wires, which are tightly wound face to face, are joined together by welding to form a coil shape. This results in excellent face-to-face tightness and, compared with the conventional method of making with metal wires, excellent space utilization for the same number of coils.

[0012] Seventh, by reducing the size of the transformer used in the OBC, the space occupied in the OBC board can be minimized.

[0013] Eighth, it has excellent face-to-face fit and, compared with the previous method of using metal wire, it has excellent space utilization for the same number of rolls, thereby minimizing leakage current.

[0014] Ninth, even at high voltages of several kV to tens of kV, insulation failure will not occur, and the efficiency between the primary and secondary coils can be maintained.

[0015] Tenth, it can supply large current and high voltage in a small size.

[0016] The resonant inductor integrated transformer module of the present invention, for achieving the aforementioned purpose, is characterized in that it comprises: a transformer; and a resonant inductor disposed on one side of the transformer, in the shape of a spiral coil, for resonating with the capacitance built into the transformer itself.

[0017] The resonant inductor integrated transformer module of the present invention is characterized in that the transformer includes: a planar primary coil with a first hollow portion formed in the center; a planar secondary coil that generates an induced current by means of a current applied to the primary coil and has a second hollow portion formed in the center; the primary coil is formed by winding a first adhesive-coated square conductor in a coil shape with the first hollow portion formed in the center; the first adhesive-coated square conductor includes: a copper wire block, which is made by arranging copper wires in contact with each other in a square shape; the copper wires are made by twisting copper wires into multiple strands; an insulating outer sheath covering the outer surface of the copper wire block; and an adhesive layer coated with an adhesive on the outer peripheral surface of the insulating outer sheath. The primary coil winds the first adhesive-coated square conductor multiple times in a face-to-face, tightly pressed and wound manner, and then the coated adhesive layer melts and solidifies, thereby forming a coil shape by welding the tightly pressed and wound first adhesive-coated square conductors together.

[0018] The resonant inductor integrated transformer module of the present invention is characterized in that the secondary coil is formed by winding a second adhesive-coated square conductor in a coil shape with a second hollow portion in the center. The second adhesive-coated square conductor includes: a copper wire block, which is made by arranging copper wires in contact with each other in a square shape. The copper wires are made by twisting copper wires into multiple strands; an insulating outer sheath covering the outer surface of the copper wire block; and an adhesive layer coated with an adhesive on the outer peripheral surface of the insulating outer sheath. The secondary coil winds the second adhesive-coated square conductor multiple times in a face-to-face, tightly wrapped manner, and then the adhesive layer melts and solidifies, thereby forming a coil shape by welding the face-to-face, tightly wrapped second adhesive-coated square conductors together.

[0019] The resonant inductor integrated transformer module of the present invention having the above structure has the following advantages.

[0020] First, by setting a resonant inductor in the transformer itself, the transformer's built-in electrostatic capacitance and resonance effect can be realized, resulting in a transformer that can provide high efficiency and low heat generation.

[0021] Secondly, by integrating the resonant inductor and transformer into a single unit, the following effects are achieved: the space occupied is reduced, which is beneficial for circuit design on the PCB substrate, and the overall size of components and PCB can be reduced when the circuit design is integrated.

[0022] Third, it has the effect of controlling the reflection characteristics based on the zero crossing point.

[0023] Fourth, while maintaining the characteristics of the transformer and resonant inductor, it dissipates the heat generated by the transformer, thereby improving the transformer's heat dissipation efficiency.

[0024] Fifth, the primary coil, secondary coil, and resonant inductor of the transformer are all shielded by the magnetic core, which improves the efficiency and temperature characteristics caused by ideal resonance.

[0025] Sixth, the copper wires of the primary and secondary coils are shaped into square shapes, covered with an insulating outer sheath, and an adhesive layer is formed on top of it. The first and second adhesive-type covered square wires, which are tightly wound face to face, are joined together by welding to form a coil shape. This has excellent face-to-face tightness and, compared with the conventional method of making with metal wire, it has a better space utilization rate for the same number of coils.

[0026] Seventh, it has the effect of minimizing the space occupied in the OBC board by reducing the size of the transformer used in the OBC.

[0027] Eighth, it has excellent face-to-face fit and, compared with the previous method of using metal wire, it has excellent space utilization for the same number of rolls, resulting in the ability to minimize leakage current.

[0028] Ninth, it has the effect of not causing insulation failure even under high voltages of several kV to tens of kV, and maintaining the efficiency between the primary and secondary coils.

[0029] Tenth, it has the ability to supply large current and high voltage in a small size.

[0030] Eleventh, a pair of support tubes are formed in the vertical direction with the second plate as the center. The first and second magnetic cores, primary coil and secondary coil can be held by the pair of support tubes. Furthermore, the structure of holding the first and second magnetic cores by the first and third mounting bases has the effect of assembling the entire transformer block stably without movement or interval by a small number of components. Attached Figure Description

[0031] Figure 1 This is a perspective view of a resonant inductor integrated transformer module 1 according to an embodiment of the present invention.

[0032] Figure 2 This is a front view of a resonant inductor integrated transformer module 1 according to an embodiment of the present invention.

[0033] Figure 3 This is a cross-sectional view of a resonant inductor integrated transformer module 1 according to an embodiment of the present invention.

[0034] Figure 4 This is an exploded perspective view of a resonant inductor integrated transformer module 1 according to an embodiment of the present invention.

[0035] Figure 5 This is an exploded perspective view of a resonant inductor integrated transformer module 1 according to an embodiment of the present invention, viewed from the bottom surfaces of the main outer cover 150, the main cover 160, the first magnetic core outer cover 250, the first magnetic core cover 260, the second magnetic core outer cover 350, and the second magnetic core cover 360.

[0036] Figure 6 This is a perspective view showing the primary coil 110, secondary coil 120, first resonant inductor 210, and second resonant inductor 310 in a resonant inductor integrated transformer module 1 according to an embodiment of the present invention.

[0037] Figure 7This is a conceptual illustration of a resonant inductor integrated transformer module 1 according to an embodiment of the present invention, which includes a first bonded covered square wire 110' and a second bonded covered square wire 120' forming a primary coil 110 and a secondary coil 120, and a third bonded covered square wire 210' and a fourth bonded covered square wire 310' forming a first resonant inductor 210 and a second resonant inductor 310.

[0038] Figure 7 (a) is a conceptual illustration of the first adhesive-coated square conductor 110', the second adhesive-coated square conductor 120', the third adhesive-coated square conductor 210', and the fourth adhesive-coated square conductor 310', all of which are covered with insulating outer sheaths 112, 122, 212, and 312.

[0039] Figure 7 (b) is a conceptual illustration of the first adhesive-coated square conductor 110', the second adhesive-coated square conductor 120', the third adhesive-coated square conductor 210', and the fourth adhesive-coated square conductor 310' with the insulating outer sheaths 112, 122, 212, and 312 partially exposed.

[0040] Figure 7 (c) is a conceptual diagram illustrating the first adhesive-type covered square conductor 110', the second adhesive-type covered square conductor 120', the third adhesive-type covered square conductor 210', and the fourth adhesive-type covered square conductor 310' of the adhesive layers 113, 123, 213, and 313.

[0041] Figure 7 (d) is a conceptual diagram illustrating the copper wires 111, 121, 211, and 311 used to twist copper wires Li into multiple strands to form a primary coil 110, a secondary coil 120, a first resonant inductor 210, and a second resonant inductor 310. Detailed Implementation

[0042] Hereinafter, preferred embodiments of the transformer module of the present invention will be described in detail with reference to the accompanying drawings.

[0043] The orientation in this specification is defined as follows: the input sections 110i and 120i and the output sections 110f and 120f of the primary coil 110 and the secondary coil 120 are arranged in the forward direction, and in the figure, the left side is the leftward direction.

[0044] exist Figures 1 to 6In the above text, the copper wires 111 and 121 and the bonding layers 113 and 123 are not shown in detail for the first bonded covered square wire 110' and the second bonded covered square wire 120' forming the primary coil 110 and the secondary coil 120, respectively. Similarly, the copper wires 211 and 311 and the bonding layers 213 and 313 are not shown in detail for the third bonded covered square wire 210' and the fourth bonded covered square wire 310' forming the first inductor 210 and the second inductor 310, respectively. Figures 1 to 6 The structures of the first inductor 210, the second inductor 310, the third bonded-type covered square wire 210', and the fourth bonded-type covered square wire 310' shown are as follows: Figure 7 As shown.

[0045] The resonant inductor integrated transformer module 1 according to the present invention includes: a transformer 10, and resonant inductors 210 and 310 disposed on one side of the transformer 10, in the form of a spiral coil, for resonating with the capacitance Cp built into the transformer 10 itself.

[0046] The transformer 10 includes: a flat primary coil 110 with a first hollow portion C1 formed in the center; and a flat secondary coil 120 that generates an induced current by means of a current applied to the primary coil 110, with a second hollow portion C2 formed in the center.

[0047] The primary coil 110 is formed by winding a first adhesive-coated square conductor 110' in a coil shape with a first hollow portion C1 in the center. The first adhesive-coated square conductor 110' includes: copper wire square blocks 111', which are arranged in contact with each other and their overall arrangement is square. The copper wires 111 are made by twisting copper wires Li into multiple strands; an insulating outer sheath 112, which covers the outer surface of the copper wire square blocks 111'; and an adhesive layer 113, which is coated with an adhesive on the outer peripheral surface of the insulating outer sheath 112.

[0048] Furthermore, the primary coil 110 winds the first adhesive-coated square wires 110' face-to-face tightly together and then winds them multiple times using a winding member (not shown). For example, the adhesive layer 113 is dissolved by a solvent (e.g., ethanol) or melted and solidified by applying heat (or hot air), thereby forming a coil shape by welding the first adhesive-coated square wires 110' that are tightly together and wound together.

[0049] The secondary coil 120 is formed by winding a second adhesive-coated square conductor 120' in a coil shape, with a second hollow portion C2 formed in the center. The second adhesive-coated square conductor 120' includes: copper wire square blocks 121', which are arranged in contact with each other and their overall arrangement is square. The copper wires 121 are made by twisting copper wires Li into multiple strands; an insulating outer sheath 122, which covers the outer surface of the copper wire square blocks 121'; and an adhesive layer 123, which is coated with an adhesive on the outer peripheral surface of the insulating outer sheath 122.

[0050] Furthermore, the secondary coil 120 winds the second adhesive-coated square wire 120' face-to-face tightly against each other and then winds it multiple times using a winding member (not shown). For example, the adhesive layer 123 is dissolved by a solvent (e.g., ethanol) or melted and solidified by applying heat (or hot air), thereby forming a coil shape by welding the two tightly against each other and winding the second adhesive-coated square wire 120' together.

[0051] The resonant inductors 210 and 310 are resonant coils used for resonant operation.

[0052] As described above, by providing resonant inductors 210 and 310 in the transformer 10 itself, the built-in capacitance of the transformer 10 is resonant.

[0053] Furthermore, by integrating the resonant inductors 210 and 310 with the transformer 10 into a single unit, the following advantages are achieved: the space occupied is reduced, which is beneficial for circuit design on the PCB substrate, and the overall size of the components and PCB can be reduced when the circuit design is integrated.

[0054] Furthermore, the resonant inductors 210 and 310 are integrated with the transformer 10, which can further reduce costs.

[0055] Furthermore, based on the structure of the integrated transformer 10 and resonant inductors 210 and 310, the copper wires 111 and 121 of the primary coil 110 and secondary coil 120 of the transformer are shaped into a square shape. An insulating outer sheath 112 and 122 is wrapped around their outer surface, and an adhesive layer 113 and 123 is formed on it. The first adhesive-type wrapped square wire 110' and the second adhesive-type wrapped square wire 120', which are tightly wound together face to face, are joined together by welding to form a coil shape. This has a very prominent face-to-face tightness, and compared with the conventional case of making it with metal wire, the space utilization is excellent for the same number of coils. Therefore, the volume of the transformer is reduced, which has the advantage of reducing the space occupied in the installed motherboard (e.g., on-board charger (OBC) board).

[0056] Furthermore, as mentioned above, it exhibits excellent face-to-face adhesion and, compared to conventional wire-based designs, it offers superior space utilization for the same number of coils, thereby minimizing leakage current.

[0057] Furthermore, even at high voltages of several kV to tens of kV, insulation failure will not occur, and the efficiency between the primary and secondary coils can be maintained.

[0058] Furthermore, based on the specific structure of the primary coil 110 and the secondary coil 120 as described above, a large current and high voltage can be supplied with a small size.

[0059] Moreover, as described above, since the primary coil 110 and the secondary coil 120 of the transformer are formed by welding, the tightness between the primary coil 110 and the secondary coil 120 of the transformer 10 is increased, and the tightness between the primary coil 110 and the secondary coil 120 is also increased, thereby reducing losses, further improving efficiency, and further reducing the height of the product while further reducing the size of the product.

[0060] Furthermore, as the height of the transformer is reduced and the size of the product is decreased, the size of the installed finished product (e.g., OBC) can be reduced, resulting in a smaller footprint and lighter weight in the electric vehicle, thereby improving the product competitiveness of the OBC in the electric vehicle.

[0061] Moreover, as mentioned above, since the primary coil 110 and secondary coil 120 of the transformer can be manufactured by winding jigs or winding machines, the automated production of the primary coil 110 and secondary coil 120 of the transformer can be realized, thereby reducing the assembly process, significantly improving productivity, and thus enhancing price competitiveness.

[0062] The winding component can be achieved using a winding jig or a winder.

[0063] The adhesive may be composed of adhesive coatings.

[0064] The present invention is characterized in that the copper wire metal wire square 111' forming the first adhesive-type covered square conductor 110' is formed by arranging the copper wire metal wire 111 tightly in an array in the up, down, left and right directions, and the copper wire metal wire square 121' forming the second adhesive-type covered square conductor 120' is formed by arranging the copper wire metal wire 121 tightly in an array in the up, down, left and right directions.

[0065] At this point, the squares of the copper wire blocks 111' and 121' can be either squares as shown in the figure, or they can be rectangles.

[0066] The square shapes of the copper wire blocks 111' and 121' of the first adhesive-coated square conductor 110' and the second adhesive-coated square conductor 120' can be formed by a square roller.

[0067] The insulating outer sheaths 112 and 122 are made of insulating tape.

[0068] The resonant inductors 210 and 310 include a first resonant inductor 210 disposed on one side of the transformer 10 and a second resonant inductor 310 disposed on the other side of the transformer 10.

[0069] The first resonant inductor 210 is formed by winding a third bonded-type covered square wire 210' in the form of a coil, with a third hollow portion C3 formed in the center. The third bonded-type covered square wire 210' includes: copper wire square blocks 211', which are arranged in contact with each other and their overall arrangement is square. The copper wire square blocks 211 are made by twisting copper wire Li into multiple strands; an insulating outer sheath 212, which covers the outer surface of the copper wire square blocks 211'; and an adhesive layer 213, which is coated with an adhesive on the outer peripheral surface of the insulating outer sheath 212.

[0070] At this time, the first resonant inductor 210 winds the third adhesive-coated square wire 210' multiple times with the two wires facing each other and tightly wrapped together using a winding component (not shown). Then, for example, the adhesive layer 213 is dissolved by a solvent (e.g., ethanol) or melted and solidified by applying heat (or hot air), so that the three adhesive-coated square wires 210' that are tightly wrapped together and tightly wrapped together are joined together by welding to form a coil shape.

[0071] Furthermore, the second resonant inductor 310 is formed by winding a fourth bonded-type covered square wire 310' in the form of a coil, with a fourth hollow portion C4 formed in the center. The fourth bonded-type covered square wire 310' includes: copper wire square blocks 311', which are arranged in contact with each other and their overall arrangement is square. The copper wire square blocks 311 are made by twisting copper wire Li into multiple strands; an insulating outer sheath 312, which covers the outer surface of the copper wire square blocks 311'; and an adhesive layer 313, which is coated with an adhesive on the outer peripheral surface of the insulating outer sheath 312.

[0072] The second resonant inductor 310 winds the fourth adhesive-coated square wire 310' multiple times with the two wires facing each other and tightly wrapped together using a winding component (not shown). Then, the adhesive layer 313 is dissolved by a solvent (e.g., ethanol) or melted and solidified by applying heat (or hot air), so that the four adhesive-coated square wires 310' that are tightly wrapped together and tightly wrapped together are joined together by welding to form a coil shape.

[0073] Furthermore, according to an embodiment of the present invention, the resonant inductor integrated transformer module 1 is characterized in that a primary coil 110 is formed by winding a primary coil in the form of a first adhesive-coated square wire 110' and a third adhesive-coated square wire 210', which are formed by the first adhesive-coated square wire 110' and the third adhesive-coated square wire 210', with a first hollow portion C1 formed in the center. A first resonant inductor 210 is formed by winding a primary coil in the form of a coil extending from the primary coil 110 and with a third hollow portion C3 formed in the center. The first resonant inductor 210 and the primary coil 110 are connected in series.

[0074] In the series connection between the first resonant inductor 210 and the primary coil 110, the output portion 210f of the first resonant inductor 210 and the input portion 110i of the primary coil 110 are connected to each other by a single wire, rather than by separately manufactured wires.

[0075] Furthermore, using a bonded-type covered square wire 120' and 310' formed by the second bonded-type covered square wire 120' and the fourth bonded-type covered square wire 310', a secondary coil 120 is formed by winding it in a coil shape with a second hollow portion C2 in the center. A second resonant inductor 310 is formed by extending from the secondary coil 120 and winding it in a coil shape with a fourth hollow portion C4 in the center. The second resonant inductor 310 and the secondary coil 120 are connected in series.

[0076] In the series connection between the second resonant inductor 310 and the secondary coil 120, the output portion 120f of the second resonant inductor 120 and the input portion 310i of the second resonant inductor 310 are connected to each other by a single wire, rather than by separately manufactured wires.

[0077] The input portion 210i of the first resonant inductor 210 and the output portion 110f of the primary coil 110 can be wound in the same direction, and the input portion 320i of the second resonant inductor 320 and the output portion 120f of the secondary coil 120 can be wound in the same direction.

[0078] As described above, by connecting the primary coil 110 and secondary coil 120 of transformer module 1, as well as the first resonant inductor 210 and the second resonant inductor 310, in series to an assembly, the height and size of transformer module 1 can be reduced. Furthermore, efficiency can be improved by reducing losses between the primary coil 110 and the secondary coil 120.

[0079] Furthermore, the present invention is characterized in that the copper wire metal wire square 211' forming the third bonding type covered square conductor 210' is formed by arranging the copper wire metal wire 211 tightly in an array in the upper, lower and left and right directions, and the copper wire metal wire square 311' forming the fourth bonding type covered square conductor 310' is formed by arranging the copper wire metal wire 311 tightly in an array in the upper, lower and left and right directions.

[0080] At this point, the square shape of the copper wire metal blocks 211' and 311' can be a square as shown in the figure, or it can be a rectangle.

[0081] The square shape of the copper wire blocks 211' and 311' of the third bonding type covered square conductor 210' and the fourth bonding type covered square conductor 310' can be formed by a square roller.

[0082] The insulating outer sheaths 312 and 322 are made of insulating tape. More preferably, the insulating tape may be, for example, polyimide tape.

[0083] According to an embodiment of the present invention, the integrated resonant inductor transformer module 1 is characterized in that it further includes: first resonant magnetic cores 220 and 230 disposed on the first resonant inductor 210 to increase the magnetic flux density generated by the current applied to the first resonant inductor 210; and second resonant magnetic cores 320 and 330 disposed on the second resonant inductor 310 to increase the magnetic flux density generated by the current applied to the second resonant inductor 310.

[0084] As described above, the first resonant inductor 210 and the second resonant inductor 310 each have a first resonant magnetic core 220, 230 and a second resonant magnetic core 320, 330, respectively. Thus, electromagnetic waves can detect reflection characteristics based on the zero crossing point, which has the advantage of being able to control this phenomenon.

[0085] The transformer 10 also includes main magnetic cores 130 and 140, which are disposed on the primary coil 110 and the secondary coil 120 to improve the magnetic flux density based on induced current.

[0086] The main magnetic cores 130 and 140 include: a first main magnetic core 130 disposed on the primary coil 110; and a second main magnetic core 140 disposed on the secondary coil 120.

[0087] The inner surfaces (upper surfaces based on the attached drawing) of the first resonant magnetic cores 220 and 230 facing the transformer 10 are in close contact with the outer surface (lower surface based on the attached drawing) of the first main magnetic core 130, and the inner surfaces (lower surfaces based on the attached drawing) of the second resonant magnetic cores 320 and 330 facing the transformer 10 are in close contact with the outer surface (upper surface based on the attached drawing) of the second main magnetic core 140.

[0088] This maintains the characteristics of transformer 10 and resonant inductors 210 and 310, and dissipates the heat generated by the transformer, thereby improving the heat dissipation efficiency of the transformer.

[0089] Furthermore, as described above, since the primary coil 110, the secondary coil 120, and the resonant inductors 210 and 310 are all shielded by the magnetic cores 130, 140, 220, 230, 320, and 330, and the main magnetic cores 130 and 140 and the resonant magnetic cores 220, 230, 320, and 330 are arranged in close contact with each other, there is an advantage of excellent efficiency and temperature characteristics due to ideal resonance.

[0090] The first main magnetic core 130 includes: a first main base 131 in the shape of a flat plate; a first main outer leg 132 protruding from the outside of the first main base 131; and a first main middle leg 133, which is separated from the first main outer leg 132 and protrudes from the center of the first main base 131, and is inserted into the first hollow portion C1 of the primary coil 110.

[0091] The second main magnetic core 140 includes: a second main base 141 in the shape of a flat plate; a second main outer leg 142 that protrudes from the outside of the second main base 141 and is in close contact with the first main outer leg 132; and a second main middle leg 143 that is separated from the second main outer leg 142 and protrudes from the center of the second main base 141 and is inserted into the second hollow portion C2 of the secondary coil 120.

[0092] The first resonant magnetic cores 220 and 230 include: a flat first resonant base 221; a first resonant outer leg 222 protruding from the outside of the first resonant base 221; a first resonant outer magnetic core 220, which is composed of a first resonant middle leg 223, which is separated from the first resonant outer leg 222 and protrudes from the center of the first resonant base 221, and is inserted into the third hollow portion C3 of the first resonant inductor 210; and a flat first resonant inner magnetic core 230, which contacts the middle leg 223 and the outer leg 222 of the first resonant outer magnetic core 220 to form a closed magnetic flux, and is in close contact with the first main base 131, forming a first resonant air gap g1 between the middle leg 223 of the first resonant outer magnetic core 220 and the first resonant inner magnetic core 230.

[0093] The second resonant magnetic cores 320 and 330 include: a flat second resonant base 321; a second resonant outer leg 322 protruding from the outside of the second resonant base 321; a second resonant outer magnetic core 320, which is composed of a second resonant middle leg 323, which is separated from the second resonant outer leg 322 and protrudes from the center of the second resonant base 321, and is inserted into the fourth hollow portion C4 of the second resonant inductor 310; and a flat second resonant inner magnetic core 230, which contacts the middle leg 323 and the outer leg 322 of the second resonant outer magnetic core 320 to form a closed magnetic flux, and is in close contact with the second main base 141, forming a second resonant air gap g2 between the middle leg 323 of the second resonant outer magnetic core 320 and the second resonant inner magnetic core 230.

[0094] As described above, a first air gap g1 and a second air gap g2 are formed between the middle legs 223 and 323 of the first resonant outer magnetic core 220 and the second resonant outer magnetic core 320 and the first inner magnetic core 230 and the second inner magnetic core 330, thereby achieving an ideal resonance effect in the resonant inductors 210 and 310.

[0095] The resonant outer magnetic cores 220 and 320 are RM type magnetic cores.

[0096] The air gaps g1 and g2 are, for example, 0.9 to 1.3 mm. More preferably, the air gaps g1 and g2 are, for example, 1.0 to 1.2 mm.

[0097] An air gap can also be formed between the middle leg of the first main magnetic core 130 and the middle leg of the second main magnetic core 140.

[0098] According to an embodiment of the present invention, the resonant inductor integrated transformer module 1 further includes: a main outer cover 150 of synthetic resin material, inserted into the space between the middle legs 133, 143 and the outer legs 132, 142 of the first main magnetic core 130 and the second main magnetic core 140, forming a main loading space Sa inside, so that the primary coil 110 and the secondary coil 120 are loaded; a main cover 160 of synthetic resin material, fastened to the main outer cover 150 to open and close the main loading space Sa of the main outer cover 150; and a shielding frame 170 of synthetic resin material, disposed inside the main outer cover 150, dividing the primary coil 110 and the secondary coil 120, and insulating the primary coil 110 and the secondary coil 120. A first magnetic core cover 250 made of synthetic resin is inserted into the space between the middle leg and the outer leg of the first resonant magnetic cores 220 and 230, for housing the first resonant inductor 210 in the internal space; a first magnetic core cover 260 made of synthetic resin is fastened to the first magnetic core cover 250, for opening and closing the internal space of the first magnetic core cover 250; a second magnetic core cover 350 made of synthetic resin is inserted into the space between the middle leg and the outer leg of the second resonant magnetic cores 320 and 330, for housing the second resonant inductor 310 in the internal space; a second magnetic core cover 360 made of synthetic resin is fastened to the second magnetic core cover 350, for opening and closing the internal space of the second magnetic core cover 350.

[0099] Furthermore, the primary coil 110 and the secondary coil 120 are fixed to the main loading space Sa without movement by an inward force (attraction) acting between the main outer cover 150 and the main cover 160.

[0100] The first inductor coil 210 is fixed without movement in the internal space formed by the first magnetic core cover 250 and the first magnetic core cover 260 by an inward force acting between the first magnetic core cover 250 and the first magnetic core cover 260.

[0101] The second inductor coil 310 is fixed without movement in the internal space formed by the second magnetic core cover 350 and the second magnetic core cover 360 by an inward force acting between the second magnetic core cover 350 and the second magnetic core cover 360.

[0102] Furthermore, the main outer cover 150 includes: a circular, flat main bottom 151 with a main central hole 151a; a main outer side wall 152, which is formed upright on the outer edge of the main bottom 151; a support tube 153, which protrudes upward from the inner periphery of the main central hole 151a of the main bottom 151 in such a way as to form a main loading space Sa between the support tube and the outer side wall 152, and has a main through hole 153a communicating with the main central hole 151a; and a wire guide block 154, which has a pair of input / output channels 154a, enabling the first adhesive-coated square wire 110' and the second adhesive-coated square wire 120' to stably enter and exit, for stably guiding the input / output of the first adhesive-coated square wire 110' of the primary coil 110 and the input / output of the second adhesive-coated square wire 120' of the secondary coil 120.

[0103] Furthermore, the shielding frame 170 includes: a circular, flat shielding bottom 171 with a shielding central hole 171a; a shielding outer side wall 172, which is formed upright on the outer edge of the shielding bottom 171; and a shielding support tube 173, which protrudes upward from the inner periphery of the shielding central hole 171a of the shielding bottom 171 in such a way as to form an insertion space Sb between the tube and the shielding outer side wall 172, and has a shielding through hole 173a communicating with the shielding central hole 171a.

[0104] The main cover 160 includes: a circular, flat plate portion 161 with a central hole 161a; an outer wall 162 that extends radially inward from the outer edge of the plate portion 161 and is perpendicularly formed; a cover support tube 163 that protrudes vertically from the inner periphery of the central hole 161a of the plate portion 161 in such a way as to form an insertion space between the tube and the outer wall 162, and has a through hole 163a communicating with the central hole 161a; and a cover wire guide block 164 that cooperates with the main wire guide block 154 and forms a pair of input / output channels 164a that allow the second adhesive-coated square wire 120' to stably enter and exit, for stably guiding the second adhesive-coated square wire 120' of the secondary coil 120 forward for input / output.

[0105] Furthermore, the outer wall 162 of the main cover 160 is formed by separating it from the edge of the plate portion 161 in the radial direction towards the inner side. An outer support rib 166a is formed on the outer edge of the plate portion 161 to cooperate with the outer wall 152 and support the outer wall 152. The cover support tube 163 of the main cover 160 is formed by separating it from the inner periphery of the central hole 161a of the cover in the radial direction towards the outer side. An inner support rib 166b is formed on the inner edge of the plate portion 161 to cooperate with the support tube 153 and support the support tube 153.

[0106] An outer support protrusion 152a is formed on the inner peripheral surface of the outer side wall 152, and an inner support protrusion 153a is formed on the inner peripheral surface of the outer side wall 152. In the shielding frame 170, the outer side wall 152 is supported by the outer support protrusion 152a, and the support tube 153 is supported by the inner support protrusion 153a. The main loading space Sa is divided into a lower loading space Sa1 and an upper loading space Sa2 and is disposed on the main outer cover 150.

[0107] The outer support rib 166a and inner support rib 166b of the main cover 160 are simultaneously fitted against the outer wall 152 and support tube 153 of the main outer cover 150. The outer wall 162 and support tube 163 of the main cover 160 are supported by the outer wall 172 and support tube 173 of the shielding frame 170, respectively. The outer wall 153 of the main outer cover 150 overlaps with the outer wall 163 of the main cover 160 and the outer wall 173 of the shielding frame 170 and is inserted externally. The support tube 153 of the main outer cover 150 overlaps with the support tube 163 of the main cover 160 and the support tube 173 of the shielding frame 170 and is inserted internally.

[0108] Furthermore, the shielding frame 170 is securely mounted in the main loading space Sa by means of a fastening force (gravity) toward the interior of the main outer cover 150 and the main cover 160, in which the primary coil 110 is loaded and the secondary coil 120 is loaded in the upper loading space Sa2.

[0109] Therefore, with a simple structure, the primary coil 110 and the secondary coil 120 can be installed without movement or gaps, and the primary coil 110 and the secondary coil 120 can be reliably insulated from each other.

[0110] Furthermore, the main cover 160 and the shielding frame 170 can be stably mounted on the main outer cover 150.

[0111] Furthermore, the first magnetic core cover 250 includes: a first plate portion 251 with a circular, flat shape, having a first central hole 251a; a first outer side wall 252, which is formed perpendicularly from the outer edge of the first plate portion 251 toward the first resonant inductor 210; a first support tube 253, which protrudes upward from the inner periphery of the first central hole 251a of the first plate portion 251 in such a way as to form an insertion space between itself and the first outer side wall 252, and has a first through hole 253a communicating with the first central hole 251a; and a first conductor block 254, which has a pair of input / output channels 254a that allow the third bonded-type covered square conductor 210' to stably enter and exit, for stably guiding the input and output of the third bonded-type covered square conductor 210' of the first resonant inductor 210.

[0112] The first magnetic core cover 260 includes: a first cover plate portion 261 with a circular, flat shape, having a first cover central hole 261a; a first cover outer side wall 262, which is formed perpendicularly from the outer edge of the first cover plate portion 261 toward the inner side in the radial direction; a first cover support tube 263, which is formed perpendicularly from the inner periphery of the first cover central hole 261a of the first cover plate portion 261 in such a way as to form an insertion space with the first cover outer side wall 262, and has a first cover through hole 263a communicating with the first cover central hole 261a; and a first cover wire guide block 264, which cooperates with the first wire guide block 254 and forms a pair of input / output channels 264a that enable the first adhesive-coated square wire 110' to stably enter and exit, for stably guiding the third adhesive-coated square wire 210' of the first resonant inductor 210 to input and output forward.

[0113] Furthermore, the first outer wall 262 of the first magnetic core cover 260 is formed by separating from the outer edge of the first cover plate portion 261 towards the inner side in the radial direction. A first outer support rib 266a is formed on the outer edge of the first cover plate portion 261 to cooperate with the first outer wall 252 and to support the first outer wall 252. The first cover support tube 263 of the first magnetic core cover 260 is formed by separating from the inner periphery of the first cover central hole 261a towards the outer side in the radial direction. A first inner support rib 266b is formed on the inner edge of the first cover plate portion 261 to cooperate with the first support tube 253 and to support the first support tube 253.

[0114] An outer support protrusion 252c is formed on the inner peripheral surface of the first outer side wall 252, and an inner support protrusion 253c is formed on the inner peripheral surface of the first support tube 253.

[0115] The first outer support rib 266a and the first inner support rib 266b of the first magnetic core cover 260 are simultaneously and tightly attached to the first outer wall 252 and the first support tube 253 of the first magnetic core cover 250. At the same time, the first outer wall 262 and the first support tube 263 of the first magnetic core cover 260 are respectively supported by the first outer wall 252 and the first support tube 253 of the first magnetic core cover 250. The first resonant inductor 210 is firmly set in the internal space of the first magnetic core cover 250 by means of the fastening force (attraction) towards the inside of the first magnetic core cover 250 and the first magnetic core cover 260.

[0116] Furthermore, the second magnetic core cover 350 includes: a circular, flat second plate portion 351 with a second central hole 351a; a second outer side wall 352, which is formed perpendicularly from the outer edge of the second plate portion 351 toward the second resonant inductor 310; a second support tube 353, which protrudes upward from the inner periphery of the second central hole 351a of the second plate portion 351 in such a way as to form an insertion space between the tube and the second outer side wall 352, and has a second through hole 353a communicating with the second central hole 351a; and a second conductor block 354, which has a pair of input / output channels 354a that enable the fourth bonded square conductor 310' to stably enter and exit forward, for stably guiding the fourth bonded square conductor 310' of the second resonant inductor 310 to input and output forward.

[0117] Furthermore, the second magnetic core cover 360 includes: a circular, flat second cover portion 361 with a second cover central hole 361a; a second cover outer side wall 362, which is formed perpendicularly from the outer edge of the second cover portion 361 toward the inner side in the radial direction; a second cover support tube 363, which is formed perpendicularly from the inner periphery of the second cover central hole 361a of the second cover portion 361 in such a way as to form an insertion space between it and the second cover outer side wall 362, and has a second cover through hole 363a communicating with the second cover central hole 361a; and a second cover wire guide block 364, which cooperates with the second wire guide block 354 and forms a pair of input / output channels 364a that enable the fourth bonded-type coated square wire 310' to stably enter and exit forward, for stably guiding the fourth bonded-type coated square wire 310' of the second resonant inductor 310 to input and output forward.

[0118] The second cover outer wall 362 of the second magnetic core cover 360 is formed by separating from the outer edge of the second cover plate portion 361 towards the inner side in the radial direction. A second cover outer support rib 366a is formed on the outer edge of the second cover plate portion 361 to cooperate with the second outer wall 352 and to support the second outer wall 352. The second cover support tube 363 of the second magnetic core cover 360 is formed by separating from the inner periphery of the second cover central hole 361a towards the outer side in the radial direction. A second cover inner support rib 366b is formed on the inner edge of the second cover plate portion 361 to cooperate with the second support tube 353 and to support the second support tube 353.

[0119] An outer support protrusion 352c is formed on the inner peripheral surface of the second outer side wall 352, and an inner support protrusion 353c is formed on the inner peripheral surface of the second support tube 353.

[0120] The second outer support rib 366a and the second inner support rib 366b of the second magnetic core cover 360 are simultaneously fitted against the second outer wall 352 and the second support tube 353 of the second magnetic core cover 350. At the same time, the second outer wall 362 and the second support tube 363 of the second magnetic core cover 360 are respectively supported by the second outer wall 352 and the second support tube 353 of the second magnetic core cover 350.

[0121] The second resonant inductor 310 is securely mounted in the interior space of the second magnetic core cover 350 by means of a fastening force (attraction) toward the interior of the second magnetic core cover 350 and the second magnetic core cap 360.

[0122] Therefore, with a simple structure, the primary coil 110 and the secondary coil 120 can be installed without movement or gaps, and the primary coil 110 and the secondary coil 120 can be reliably insulated from each other.

[0123] Furthermore, the main cover 160 and the shielding frame 170 can be stably mounted on the main outer cover 150.

[0124] According to an embodiment of the present invention, a resonant inductor integrated transformer module 1 is characterized in that it further comprises: a pair of first outer magnetic core movement prevention protrusions 267, protruding on the outer surface of the first cover plate portion 261 of the first magnetic core cover 260, to prevent movement or gap of the first resonant outer magnetic core 220 tightly attached to the first cover plate portion 261 of the first magnetic core cover 260, and to hold the first resonant base 221 of the first resonant outer magnetic core 220; and a pair of first inner magnetic core movement prevention protrusions 257, protruding on the outer surface of the first plate portion 251 of the first magnetic core cover 250, to prevent movement or gap of the first resonant inner magnetic core 230 tightly attached to the first plate portion 251 of the first magnetic core cover 250. The second resonant inner magnetic core 230 is held in place by a pair of second outer magnetic core movement prevention protrusions 367, which protrude from the outer surface of the second cover plate portion 361 of the second magnetic core cover 360 to prevent movement or gaps in the second resonant outer magnetic core 320 that is tightly attached to the second plate portion 361 of the second magnetic core cover 360, and hold the second resonant base 321 of the second resonant outer magnetic core 320; a pair of second inner magnetic core movement prevention protrusions 357, which protrude from the outer surface of the second plate portion 351 of the second magnetic core cover 350 to prevent movement or gaps in the second resonant inner magnetic core 330 that is tightly attached to the second plate portion 351 of the second magnetic core cover 350, and hold the second resonant inner magnetic core 330.

[0125] Furthermore, in the resonant inductor integrated transformer module 1 according to an embodiment of the present invention, the transformer 10, the first resonant cores 220 and 230 closely disposed on the first main magnetic core 130 of the transformer 10, the first resonant inductor 210 wound inside the first resonant cores 220 and 230, the second resonant cores 320 and 330 closely disposed on the second main magnetic core 140 of the transformer 10, and the second resonant inductor 310 wound inside the second resonant cores 320 and 330 are all installed in a housing (not shown) and integrally molded by insulating resin.

[0126] Furthermore, according to an embodiment of the present invention, the integrated transformer module 1 with resonant inductor is characterized in that the transformer 10, the first resonant magnetic cores 220 and 230 which are closely disposed on the first main magnetic core 130 of the transformer 10 and have the first resonant inductor 210 wound inside, and the second resonant magnetic cores 320 and 330 which are closely disposed on the second main magnetic core 140 of the transformer 10 and have the second resonant inductor 310 wound inside, can be attached to each other with adhesive tape.

[0127] According to an embodiment of the present invention, the resonant inductor integrated transformer module 1 is characterized in that the transformer 10 is an OBC transformer 10 for an electric vehicle.

[0128] As described above, preferred embodiments of the present invention have been presented. Besides the described embodiments, the present invention can be implemented in other specific forms without changing its technical concept or essential features, which will be obvious to those skilled in the art. Therefore, it should be understood that the embodiments are not restrictive but exemplary.

[0129] The scope of this invention is defined by the appended claims rather than the detailed description described herein, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included within the scope of this invention.

Claims

1. A transformer module integrating a resonant inductor, characterized in that, include: Transformer (10); Resonant inductors (210, 310), disposed on one side of the transformer (10), are in the shape of a spiral coil and are used to resonate with the capacitance (Cp) built into the transformer (10) itself. The transformer (10) includes: A flat primary coil (110) has a first hollow section (C1) formed in the center; The flat secondary coil (120) generates an induced current by means of the current applied to the primary coil (110), and a second hollow part (C2) is formed in the center. The primary coil (110) is formed by winding a first adhesive-type covered square wire (110') in a coil shape, such that a first hollow portion (C1) is formed in the center. The first adhesive-coated square conductor (110') includes: The copper wire block (111') is made by arranging copper wires (111) in contact with each other, and the overall shape of the arrangement is square. The copper wires (111) are made by twisting copper wires (Li) into multiple strands. An insulating outer sheath (112) covers the outer surface of the copper wire square (111'); An adhesive layer (113) is formed by applying an adhesive to the outer peripheral surface of the insulating outer sheath (112). The primary coil (110) winds the first adhesive-coated square wire (110') multiple times in a face-to-face, tightly pressed and wound manner, causing the coated adhesive layer (113) to melt and solidify, thereby forming a coil shape by fusing the tightly pressed and wound first adhesive-coated square wire (110') together. The secondary coil (120) is formed by winding a second adhesive-type covered square wire (120') in a coil shape, such that a second hollow portion (C2) is formed in the center. The second adhesive-coated square conductor (120') includes: The copper wire block (121') is made by arranging copper wires (121) in contact with each other, and the overall shape of the arrangement is square. The copper wires (121) are made by twisting copper wires (Li) into multiple strands. An insulating outer sheath (122) covers the outer surface of the copper wire square (121'); Adhesive layer (123): An adhesive is applied to the outer peripheral surface of the insulating outer sheath (122). The secondary coil (120) winds the second adhesive-coated square wire (120') multiple times in a face-to-face, tightly pressed and wound manner, so that the coated adhesive layer (123) melts and solidifies, thereby forming a coil shape by welding the face-to-face, tightly pressed and wound second adhesive-coated square wire (120') together.

2. The resonant inductor integrated transformer module according to claim 1, characterized in that, The copper wire block (111') that forms the first adhesive-coated square conductor (110') is formed into a square shape by arranging the copper wires (111) tightly together vertically and horizontally. The copper wire block (121') forming the second adhesive-type covered square conductor (120') is formed into a square by arranging the copper wire (121) tightly together vertically and horizontally.

3. The resonant inductor integrated transformer module according to claim 1, characterized in that, The resonant inductors (210, 310) include: A first resonant inductor (210) is disposed on one side of the transformer (10); A second resonant inductor (310) is disposed on the other side of the transformer (10). The first resonant inductor (210) is formed by winding a third bonded, covered square wire (210') in the form of a coil in such a way that a third hollow portion (C3) is formed in the center. The third adhesive-coated square conductor (210') includes: The copper wire block (211') is made by arranging copper wires (211) in contact with each other, and the overall shape of the arrangement is square. The copper wires (211) are made by twisting copper wires (Li) into multiple strands. An insulating outer sheath (212) covers the outer surface of the copper wire square (211'); Adhesive layer (213), an adhesive is applied to the outer peripheral surface of the insulating outer skin (212), After the first resonant inductor (210) winds the third adhesive-coated square wire (210') multiple times in a face-to-face, tightly pressed and wound manner, the coated adhesive layer (213) melts and solidifies, thereby forming a coil by fusing the tightly pressed and wound third adhesive-coated square wire (210') together. The second resonant inductor (310) is formed by winding a fourth bonded-type covered square wire (310') in the form of a coil in such a way that a fourth hollow portion (C4) is formed in the center. The fourth adhesive-coated square conductor (310') includes: The copper wire block (311') is made by arranging copper wires (311) in contact with each other, and the overall shape of the arrangement is square. The copper wires (311) are made by twisting copper wires (Li) into multiple strands. An insulating outer sheath (312) covers the outer surface of the copper wire square (311'); Adhesive layer (313): An adhesive is applied to the outer peripheral surface of the insulating outer sheath (312). The second resonant inductor 310 winds the fourth adhesive-coated square wire (310') multiple times in a face-to-face, tightly pressed and wound manner, causing the coated adhesive layer (313) to melt and solidify. This allows the tightly pressed and wound fourth adhesive-coated square wires (310') to be joined together by welding to form a coil shape. Using a bonded-type coated square wire (110', 210') continuously formed with the first bonded-type coated square wire (110') and the third bonded-type coated square wire (210'), a primary coil (110) is formed by winding it in a coil shape with a first hollow portion (C1) in the center. A first resonant inductor (210) is formed by extending from the primary coil (110) and winding it in a coil shape with a third hollow portion (C3) in the center. The first resonant inductor (210) and the primary coil (110) are connected in series. Using a bonded-type covered square wire (120', 310') continuously formed with a second bonded-type covered square wire (120') and a fourth bonded-type covered square wire (310'), a secondary coil (120) is formed by winding it in a coil shape in such a way that a second hollow portion (C2) is formed in the center. A second resonant inductor (310) is formed by extending from the secondary coil (120) and winding it in a coil shape in such a way that a fourth hollow portion (C4) is formed in the center. The second resonant inductor (310) and the secondary coil (120) are connected in series.

4. The resonant inductor integrated transformer module according to claim 3, characterized in that, The copper wire blocks (211') forming the third bonding-type covered square conductor (210') are formed into squares by arranging the copper wires (211) tightly together vertically and horizontally. The copper wire block (311') forming the fourth bonding type covered square conductor (310') is formed into a square by arranging the copper wire (311) tightly in the upper and lower and left and right sides.

5. The resonant inductor integrated transformer module according to claim 4, characterized in that, Also includes: A first resonant magnetic core (220, 230) is disposed in a first resonant inductor (210) to increase the magnetic flux density generated by the current applied to the first resonant inductor (210). A second resonant magnetic core (320, 330) is disposed in the second resonant inductor (310) to increase the magnetic flux density generated by the current applied to the second resonant inductor (310). The transformer (10) further includes main magnetic cores (130, 140), which are disposed on the primary coil (110) and the secondary coil (120) to improve the magnetic flux density based on induced current. The main magnetic cores (130, 140) include: The first main magnetic core (130) is disposed in the primary coil (110). The second main magnetic core (140) is disposed in the secondary coil (120). The first resonant magnetic core (220, 230) is disposed in close contact with the first main magnetic core (130). The second resonant magnetic core (320, 330) is disposed in close contact with the second main magnetic core (140). The first main magnetic core (130) includes: The first main base (131) is flat. The first main outer leg (132) protrudes from the outside of the first main base (131). The first main middle leg (133) is separated from the first main outer leg (132) and protrudes from the center of the first main base (131), and is inserted into the first hollow part (C1) of the primary coil (110). The second main magnetic core (140) includes: The second main base (141) is flat. The second main outer leg (142) protrudes from the outside of the second main base (141) and is closely attached to the first main outer leg (132). The second main middle leg (143) is separated from the second main outer leg (142) and protrudes from the center of the second main base (141), and is inserted into the second hollow part (C2) of the secondary coil (120). The first resonant magnetic core (220, 230) includes: The first resonant base (221) is in the shape of a flat plate. The first resonant outer leg (222) protrudes from the outside of the first resonant base (221). The first resonant outer magnetic core (220) is composed of the first resonant middle leg (223), which is separated from the first resonant outer leg (222) and protrudes from the center of the first resonant base (221), and is inserted into the third hollow part (C3) of the first resonant inductor (210). The first resonant inner magnetic core (230) contacts the middle leg (223) and outer leg (222) of the first resonant outer magnetic core (220) to form a closed magnetic flux, and is in close contact with the first main base (131). A first resonant air gap (g1) is formed between the middle leg (223) of the first resonant outer magnetic core (220) and the first resonant inner magnetic core (230). The second resonant magnetic core (320, 330) includes: A flat, second resonant base (321), The second resonant outer leg (322) protrudes from the outside of the second resonant base (321). The second resonant outer magnetic core (320) is composed of the second resonant middle leg (323), which is separated from the second resonant outer leg (322) and protrudes from the center of the second resonant base (321), and is inserted into the fourth hollow part (C4) of the second resonant inductor (310). The second resonant inner magnetic core (230) contacts the middle leg (323) and outer leg (322) of the second resonant outer magnetic core (320) to form a closed magnetic flux, and is in close contact with the second main base (141). A second resonant air gap (g2) is formed between the middle leg (323) of the second resonant outer magnetic core (320) and the second resonant inner magnetic core (230).

6. The resonant inductor integrated transformer module according to claim 5, characterized in that, The transformer (10), the first resonant cores (220, 230) closely attached to the first main magnetic core (130) of the transformer (10), the first resonant inductor (210) wound inside the first resonant cores (220, 230), the second resonant cores (320, 330) closely attached to the second main magnetic core (140) of the transformer (10), and the second resonant inductor (310) wound inside the second resonant cores (320, 330) are all integrally molded with insulating resin while being encased in an outer cover.

7. The resonant inductor integrated transformer module according to claim 5, characterized in that, Also includes: The main outer casing (150) is inserted into the space between the middle legs (133, 143) and outer legs (132, 142) of the first main magnetic core (130) and the second main magnetic core (140), forming a main loading space (Sa) inside, so that the primary coil (110) and the secondary coil (120) can be loaded. The main cover (160) is fastened to the main outer cover (150) to open and close the main loading space (Sa) of the main outer cover (150). A shielding frame (170), disposed inside the main outer casing (150), divides the primary coil (110) and the secondary coil (120) and insulates the primary coil (110) and the secondary coil (120). The first magnetic core outer casing (250) is inserted into the space between the middle leg and the outer leg of the first resonant magnetic core (220, 230) for housing the first resonant inductor (210) within the internal space. The first magnetic core cover (260) is fastened to the first magnetic core outer cover (250) and is used to open and close the first magnetic core outer cover (250). The second magnetic core outer casing (350) is inserted into the space between the middle leg and the outer leg of the second resonant magnetic core (320, 330) for housing the second resonant inductor (310) within the internal space. The second magnetic core cover (360) is fastened to the second magnetic core outer cover (350) and is used to open and close the second magnetic core outer cover (350). The primary coil (110) and secondary coil (120) are fixed without movement to the main loading space (Sa) by an inward force acting between the main outer cover (150) and the main cover (160). The first inductor coil (210) is fixed without movement within the internal space formed by the first magnetic core cover (250) and the first magnetic core cover (260) by an inward force acting between the first magnetic core cover (250) and the first magnetic core cover (260). The second inductor coil (310) is fixed without movement in the internal space formed by the second magnetic core cover (350) and the second magnetic core cover (360) by an inward force acting between the second magnetic core cover (350) and the second magnetic core cover (360).

8. The resonant inductor integrated transformer module according to claim 7, characterized in that, The main outer cover (150) includes: The flat-shaped main bottom (151) has a main central hole (151a). The main outer wall (152) is formed upright on the outer edge of the main bottom (151). The support tube (153) protrudes upward from the inner periphery of the main central hole (151a) of the main bottom (151) in such a way as to form a main insertion space (Sa) between itself and the outer side wall (152), and has a main through hole (153a) communicating with the main central hole (151a). The conductor block (154) forms a pair of input / output channels (154a) that allow the first adhesive-coated square conductor (110') and the second adhesive-coated square conductor (120') to stably enter and exit, thereby stably guiding the input / output of the first adhesive-coated square conductor (110') of the primary coil (110) and the input / output of the second adhesive-coated square conductor (120') of the secondary coil (120). The shielding frame (170) includes: The flat-shaped bottom of the shield (171) forms a central shielding hole (171a). The outer wall (172) of the shield is formed upward from the outer edge of the bottom edge of the shield (171). The shielding support tube (173) protrudes upward from the inner periphery of the shielding center hole (171a) of the shielding bottom (171) in such a way that it forms an insertion space (Sb) between itself and the shielding outer wall (172), and has a shielding through hole (173a) communicating with the shielding center hole (171a). The main cover (160) includes: The plate (161) has a covered central hole (161a). The outer wall (162) of the cover is spaced apart from the outer edge of the plate portion (161) and formed perpendicularly in the radial direction inward. A cover support tube (163) is formed perpendicularly from the inner periphery of the central hole (161a) of the cover portion (161) in such a way that it forms an insertion space with the outer wall (162) of the cover, and has a cover through hole (163a) communicating with the central hole (161a). The cover wire guide block (164) cooperates with the main wire guide block (154) and forms a pair of input / output channels (164a) that allow the second adhesive-coated square wire (120') to stably enter and exit, for stably guiding the input and output of the second adhesive-coated square wire (120') of the secondary coil (120). The outer wall (162) of the main cover (160) is formed by separating it from the edge of the plate portion (161) in the radial direction inward. An outer support rib (166a) for supporting the outer wall (152) is formed on the outer edge of the plate portion (161). The cover support tube (163) of the main cover (160) is formed by separating the inner periphery of the central hole (161a) of the cover from the outer side in the radial direction. An inner cover support rib (166b) is formed on the inner edge of the plate portion (161) to cooperate with the support tube (153) and to support the support tube (153). An outer support protrusion (152a) is formed on the inner circumferential surface of the outer side wall (152). An inner support protrusion (153a) is formed on the inner circumferential surface of the outer side wall (152). In the shielding frame (170), the outer wall (152) is supported by the outer support protrusion (152a), and the support tube (153) is supported by the inner support protrusion (153a), dividing the main loading space (Sa) into a lower loading space (Sa1) and an upper loading space (Sa2) and disposed on the main outer cover (150). The outer support rib (166a) and inner support rib (166b) of the main cover (160) are simultaneously fitted against the outer wall (152) and support tube (153) of the main outer cover (150). The outer wall (162) of the main cover (160) and the cover support tube (163) are respectively supported by the outer wall (172) and the support tube (173) of the shielding frame (170). The outer wall (153) of the main outer cover (150) overlaps with the outer wall (163) of the main cover (160) and the outer wall (173) of the shielding frame (170) and inserts outwards. The support tube (153) of the main outer cover (150) is inserted in an overlapping manner with the cover support tube (163) of the main cover (160) and the support tube (173) of the shielding frame (170). The shielding frame (170) is securely mounted in the main loading space (Sa) by means of a fastening force toward the interior of the main outer cover (150) and the main cover (160). A primary coil (110) is inserted into the lower insertion space (Sa1), and a secondary coil (120) is inserted into the upper insertion space (Sa2).

9. The resonant inductor integrated transformer module according to claim 7, characterized in that, The first magnetic core cover (250) includes: The first plate portion (251) has a first central hole (251a). The first outer sidewall (252) is formed perpendicularly from the outer edge of the first plate portion (251) toward the first resonant inductor (210). The first support tube (253) protrudes upward from the inner periphery of the first central hole (251a) of the first plate portion (251) in such a way as to form an insertion space between itself and the first outer side wall (252), and has a first through hole (253a) communicating with the first central hole (251a). The first conductor block (254) has a pair of input / output channels (254a) that allow the third bonded-type coated square conductor (210') to stably enter and exit, for stably guiding the input and output of the third bonded-type coated square conductor (210') of the first resonant inductor (210). The first magnetic core cover (260) includes: The first cover plate portion (261) has a first cover central hole (261a). The outer wall (262) of the first cover is formed perpendicularly to the outer edge of the first cover plate portion (261) and is spaced inward in the radial direction. The first cover support tube (263) is formed vertically from the inner periphery of the first cover center hole (261a) of the first cover plate portion (261) in such a way that it forms an insertion space with the outer wall (262) of the first cover, and has a first cover through hole (263a) communicating with the first cover center hole (261a). The first cover wire block (264) cooperates with the first wire block (254) and forms a pair of input / output channels (264a) that enable the first adhesive-coated square wire (110') to stably enter and exit, for stably guiding the input and output of the third adhesive-coated square wire (210') of the first resonant inductor (210). The first outer wall (262) of the first magnetic core cover (260) is formed by separating it from the outer edge of the first cover plate portion (261) in the radial direction inward. A first outer support rib (266a) is formed on the outer edge of the first cover plate portion (261) to cooperate with the first outer wall (252) and to support the first outer wall (252). The first cover support tube (263) of the first magnetic core cover (260) is formed by separating the inner periphery of the central hole (261a) of the first cover from the outer side in the radial direction. A first cover inner support rib (266b) is formed on the inner edge of the first cover plate portion (261) to cooperate with the first support tube (253) and to support the first support tube (253). An outer support protrusion (252c) is formed on the inner circumferential surface of the first outer sidewall (252). An inner support protrusion (2553c) is formed on the inner circumferential surface of the first support tube (253). The first outer support rib (266a) and the first inner support rib (266b) of the first main cover (260) are simultaneously fitted against the first outer wall (252) and the first support tube (253) of the first magnetic core outer cover (250). The first outer wall (262) of the first magnetic core cover (260) and the first cover support tube (263) are respectively supported by the first outer wall (252) and the first support tube (253) of the first magnetic core outer cover (250). The first resonant inductor (210) is securely mounted in the interior space of the first magnetic core housing (250) by means of a fastening force toward the interior of the first magnetic core housing (250) and the first magnetic core cover (260).

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