Abstract: A magnetic field shielding sheet and a wireless power transfer module that includes the same are provided. The magnetic field shielding sheet, according to an exemplary embodiment of the present invention, which is applied to a combo-type antenna unit that includes at least two antennas using different frequency bands of magnetic fields, comprises: a first sheet layer that includes a metal component that shields a first frequency band of a magnetic field and concentrates the magnetic field in a designated direction; a second sheet layer that shields a second frequency band of a magnetic field and concentrates the magnetic field in a designated direction; and a micro-piece separation and oxidation preventing member provided on a side surface of the first sheet layer in order to prevent a micro-piece from being separated from the side surface of the first sheet or to prevent the side surface from being oxidized.

Abstract: A wireless power transmission module is provided. According to an exemplary embodiment of the present disclosure, a wireless power transmission module includes an antenna unit, a magnetic field shielding sheet, and a planar heat radiating plate. The antenna unit includes at least one wireless power transfer antenna. The magnetic field shielding sheet shields a magnetic field generated by the antenna unit to suppress external leakage of the magnetic field and concentrate the magnetic field in a desired direction. The planar heat radiating plate which is disposed on one surface of the magnetic field shielding sheet to release heat generated by the antenna unit. The wireless power transmission module is equipped or embedded in a vehicle to be used to charge a main battery of a portable terminal.

Abstract: Provided are a hybrid metal sheet for magnetic shielding and a wireless power transmission module including the same. The hybrid metal sheet for magnetic shielding according to an embodiment of the present invention comprises: a first sheet layer made of a ribbon sheet of an amorphous alloy having a first width; and a plurality of second sheet layers stacked in multiple layers on one side of the first sheet layer, wherein the second sheet layer may be a sheet layer formed by arranging a plurality of divided sheets having a second width narrower than the first width and made of a ribbon sheet of a nano-crystal alloy on the same plane.

Abstract: A multifunctional integrated module is provided. The multifunctional integrated module includes an antenna unit including heterogeneous antennas and a magnetic field shielding unit, disposed on one surface of the antenna unit, including a magnetic field shielding layer which includes shredded Fe-based alloy fragments and a dielectric filling at least a part of gaps between at least a part of some adjacent ones of the shredded Fe-based alloy fragments, to improve the characteristics of the antennas and condense a magnetic flux toward the antennas. According to this, although the functions are performed simultaneously, the respective functions are excellently expressed at the same time, and the durability can be ensured by preventing the deterioration of the function even with external physical shocks during use.

Abstract: Disclosed is an antenna module, which forms a radiation pattern for near-field communication and a radiation pattern for electronic payment on a flexible printed circuit board, and then couples it with a magnetic sheet, thereby implementing the performance equal to or superior to that of a conventional antenna module while simplifying the manufacturing process. The disclosed antenna module includes a flexible magnetic sheet and an antenna sheet on which a radiation pattern and an insertion hole are formed, and the magnetic sheet is formed with an extension portion formed on one short side, and the extension portion is penetrated and inserted into the insertion hole to be coupled with the antenna sheet.

Abstract: Provided is a heat radiation unit for radiating heat generated during operation of a wireless power transmitting or receiving device and includes a plurality of thermally conductive metal layers stacked in two or more layers and an adhesive layer for attaching the thermally conductive metal layers, to prevent lowering of the charging efficiency and improve the heat radiation performance.

Abstract: A magnetic field shielding unit according to one embodiment of the present disclosure comprises: a first shielding sheet having a first magnetic field shielding layer formed of fragments of an Fe-based alloy to enhance an antenna characteristic for wireless charging in order to enhance flexibility and reduce an eddy current; and a second shielding sheet having a second magnetic field shielding layer formed of fragments of ferrite to enhance an antenna characteristic for short range communication in order to enhance the flexibility of the shielding unit.

Abstract: Disclosed is a method of manufacturing a magnetic field shielding sheet. The method of manufacturing a magnetic field shielding sheet formed as a plurality of divided pieces includes preparing a magnetic sheet formed of a magnetic material and having a first area and punching the magnetic sheet to form a shielding sheet using a mold such that the shielding sheet having a second area which is narrower than the first area is separated from the magnetic sheet, wherein the punching of the magnetic sheet to form the shielding sheet includes forming at least one linear slit in an inner region of the second area using the mold such that the shielding sheet is divided into a plurality of pieces while the shielding sheet is separated from the magnetic sheet to have the second area.

Abstract: A multifunctional integrated module is provided. The multifunctional integrated module includes an antenna unit including heterogeneous antennas and a magnetic field shielding unit, disposed on one surface of the antenna unit, including a magnetic field shielding layer which includes shredded Fe-based alloy fragments and a dielectric filling at least a part of gaps between at least a part of some adjacent ones of the shredded Fe-based alloy fragments, to improve the characteristics of the antennas and condense a magnetic flux toward the antennas. According to this, although the functions are performed simultaneously, the respective functions are excellently expressed at the same time, and the durability can be ensured by preventing the deterioration of the function even with external physical shocks during use.

Abstract: Provided are a magnetic field shield sheet for a wireless charger, a method of manufacturing the sheet, and a receiver for the wireless charger by using the sheet. The sheet includes at least one layer thin magnetic sheet made of an amorphous ribbon separated into a plurality of fine pieces; a protective film that is adhered on one surface of the thin magnetic sheet via a first adhesive layer provided on one side of the protective film; and a double-sided tape that is adhered on the other surface of the thin magnetic sheet via a second adhesive layer provided on one side of the double-sided adhesive tape, wherein gaps among the plurality of fine pieces are filled by some parts of the first and second adhesive layers, to thereby isolate the plurality of fine pieces.

Abstract: A shielding unit for a wireless power transfer module and the wireless power transfer module including the same are provided. The shielding unit for the wireless power transfer module according to an embodiment of the present invention comprises a magnetic field shielding sheet for shielding a magnetic field generated in a predetermined frequency band and condensing the same in a desired direction, and a magnetic body receiving portion which is formed through the magnetic field shielding sheet such that a magnetic body for including magnetic force lines generated from a permanent magnet can be inserted therein, wherein the magnetic body receiving portion is arranged to have a relatively larger size than the magnetic body.

Abstract: Provided are a shielding unit for wireless charging and a wireless power transfer module including the same. The shielding unit for wireless charging includes a first sheet for a wireless power transfer antenna, and a second sheet for another antenna operating in a different frequency band from that of the wireless power transfer antenna. The first sheet is provided in a first region which is disposed on a side of a virtual boundary line, and the second sheet is provided in a second region which is disposed on the opposite side of the first region.

Abstract: Provided is a transmission device for a wireless charger. A transmission device for a wireless charger in accordance with exemplary embodiments of the present invention comprises: a plurality of planar coils which transmit a wireless power signal for wireless charging and which are arranged so as to be at least partially overlapped with each other; a shielding sheet which has an attachment surface to which a part or all of the planar coils are fixed by the medium of an adhesive layer, and which shields a magnetic field generated from the planar coils; and a height deviation compensation means which is provided on the attachment surface and which compensates for individual height deviation between each planar coil and the attachment surface.

Abstract: A magnetic field shielding unit according to one embodiment of the present disclosure comprises: a first shielding sheet having a first magnetic field shielding layer formed of fragments of an Fe-based alloy to enhance an antenna characteristic for wireless charging in order to enhance flexibility and reduce an eddy current; and a second shielding sheet having a second magnetic field shielding layer formed of fragments of ferrite to enhance an antenna characteristic for short range communication in order to enhance the flexibility of the shielding unit.

Abstract: Provided are a magnetic field shield sheet for a wireless charger, a method of manufacturing the sheet, and a receiver for the wireless charger by using the sheet. The sheet includes at least one layer thin magnetic sheet made of an amorphous ribbon separated into a plurality of fine pieces; a protective film that is adhered on one surface of the thin magnetic sheet via a first adhesive layer provided on one side of the protective film; and a double-sided tape that is adhered on the other surface of the thin magnetic sheet via a second adhesive layer provided on one side of the double-sided adhesive tape, wherein gaps among the plurality of fine pieces are filled by some parts of the first and second adhesive layers, to thereby isolate the plurality of fine pieces.

Abstract: There is provided a magnetic field shielding sheet for wireless power transmission. The present disclosure to provide a magnetic field shielding sheet for wireless power transmission that includes a first shielding sheet for shielding a magnetic field generated from a first wireless power transmission antenna operable in a magnetic induction method, a second shielding sheet for shielding a magnetic field generated from a second wireless power transmission antenna operable in a magnetic resonance method, and a third shielding sheet which is stacked on the same surface of the first shielding sheet and the second shielding sheet so as to cover the first shielding sheet and the second shielding sheet, for shielding the magnetic field generated from the second wireless power transmission antenna.

Abstract: A magnetic field shielding sheet and a wireless power transfer module that includes the same are provided. The magnetic field shielding sheet, according to an exemplary embodiment of the present invention, which is applied to a combo-type antenna unit that includes at least two antennas using different frequency bands of magnetic fields, comprises: a first sheet layer that includes a metal component that shields a first frequency band of a magnetic field and concentrates the magnetic field in a designated direction; a second sheet layer that shields a second frequency band of a magnetic field and concentrates the magnetic field in a designated direction; and a micro-piece separation and oxidation preventing member provided on a side surface of the first sheet layer in order to prevent a micro-piece from being separated from the side surface of the first sheet or to prevent the side surface from being oxidized.

Abstract: Provided is a transmission device for a wireless charger. A transmission device for a wireless charger in accordance with exemplary embodiments of the present invention comprises: a plurality of planar coils which transmit a wireless power signal for wireless charging and which are arranged so as to be at least partially overlapped with each other; a shielding sheet which has an attachment surface to which a part or all of the planar coils are fixed by the medium of an adhesive layer, and which shields a magnetic field generated from the planar coils; and a height deviation compensation means which is provided on the attachment surface and which compensates for individual height deviation between each planar coil and the attachment surface.

Abstract: Disclosed is a magnetic field shielding unit. The magnetic field shielding sheet includes a magnetic field shielding sheet and a metallic protecting member attached to a surface of the magnetic field shielding sheet via an adhesive layer for protecting the magnetic field shielding sheet as well as to for radiating heat generated from a heat source.

Abstract: A wireless power transmission module is provided. According to an exemplary embodiment of the present disclosure, a wireless power transmission module includes an antenna unit, a magnetic field shielding sheet, and a planar heat radiating plate. The antenna unit includes at least one wireless power transfer antenna. The magnetic field shielding sheet shields a magnetic field generated by the antenna unit to suppress external leakage of the magnetic field and concentrate the magnetic field in a desired direction. The planar heat radiating plate which is disposed on one surface of the magnetic field shielding sheet to release heat generated by the antenna unit. The wireless power transmission module is equipped or embedded in a vehicle to be used to charge a main battery of a portable terminal.