Abstract: Disclosed is a core for a current transformer, which forms an upper core in a round shape, and is disposed at a position lower than the center of a power line having both ends of the upper core received, thereby minimizing the stress of a magnetic path, and increases the permeability, thereby enhancing the magnetic induction efficiency. The disclosed core for the current transformer includes an upper core curved in a semi-circular shape to have a receiving groove formed therein, and having both ends extended downwards to be disposed to be spaced apart from each other and a lower core disposed on the lower portion of the upper core, and having both ends extended upwards to be disposed to face both ends of the upper core.

Abstract: Disclosed is a wireless power transmitting module comprising: a coil unit provided with a coil body in which a conductive member having a predetermined length is wound in one direction, and with a planar coil including a pair of terminal portions extending from the coil body by a predetermined length for electrical connection; a main shielding sheet arranged on one surface of the coil unit to shield a magnetic field generated from the coil unit; an accommodating portion formed through the main shielding sheet so as to accommodate the thickness of at least one of the pair of terminal portions; and an auxiliary shielding sheet attached to one surface of the main shielding sheet so as to cover the accommodating portion in order to shield a magnetic field leaking through the accommodating portion, wherein the auxiliary shielding sheet has a relatively thinner thickness than the main shielding sheet.

Abstract: Presented is an electronic meter for supplying driving power to a battery module charged by wireless power transmission. The presented electronic meter includes a usage detection module for detecting energy usage of a consumer, a control module for generating meter data based on the energy usage detected by the usage detection module, a communication module for transmitting the meter data generated by the control module to a meter reading server or a repeater, a battery module composed of a secondary cell, and for supplying driving power to the usage detection module, the control module, and the communication module, and a wireless power receiving module for receiving power wirelessly from a wireless power transmission device to charge the battery module.

Abstract: A rear combination lamp installed on a vehicle comprises: a first rear lamp module installed on a later part of the rear side of the vehicle; and a second rear lamp module installed on a back door located at the rear side of the vehicle to be arranged adjacent to the first rear lamp module. The first rear lamp module includes a main light source and a sub-light source. The main light source generates light output from the first rear lamp module, and the sub-light source generates light provided to the second rear lamp module. The second rear lamp module includes a light reception unit and a light direction changing unit. The light reception unit receives light from the sub-light source. The light direction changing unit changes a progressing direction of light received in the light reception unit to output light to the outside.

Abstract: A manhole cover and a manhole management system are provided. A manhole cover according to one embodiment includes: a cover body; an electronic unit including at least one sensing unit configured to sense information inside a manhole and at least one communication module configured to transmit information which is obtained through the sensing unit to the outside, and embedded in the cover body; a battery providing driving power to the electronic unit; and a wireless power reception antenna embedded in the cover body to receive wireless power supplied from the outside and provide the wireless power to the battery.

Abstract: Disclosed are: a skin care device which determines whether, on the basis of a voltage fluctuation according to contact with the skin, the skin care device has been rubbed, and which blocks the output of current through an electrode when rubbing does not occur for at least a set time; and a control method therefor. The disclosed skin care device determines the state of the skin care device on the basis of sensing voltage corresponding to a change in current of a transformation module according to the outputting of alternating current into the skin through contact electrodes, and blocks the output of current of an electrode module if the skin care device is in a fixed state.

Abstract: A detachable seat wireless power transfer and communication system includes: a seat assembly including a seat receiver configured to receive power wirelessly and a seat controller to control the seat receiver; a vehicle assembly spaced apart from the seat assembly at a lower end of the seat assembly; a front hook spaced apart from the seat assembly at a lower end of a front portion of the seat assembly in a length direction to fix a first end of the seat assembly to a vehicle body; a rear latch spaced apart from the seat assembly at a lower end of a rear portion of the seat assembly in the length direction to fix a second end of the seat assembly to the vehicle body; and a front hook switch spaced apart from the vehicle assembly. The vehicle assembly includes a vehicle transmitter configured to wirelessly transmit the power to the seat assembly, and a vehicle controller configured to control the vehicle transmitter.

Abstract: A wireless power transmission apparatus having a first coil configured to wirelessly charge a battery of a first electronic device; a second coil formed to have a size relatively greater than that of the first coil and configured to wirelessly charge a battery of a second electronic device; a shielding member configured to shield a magnetic field generated from the first coil and the second coil; and a case configured to accommodate the first coil, the second coil, and the shielding member, wherein the first coil is disposed so that a portion corresponding to a first width of a coil body overlaps a coil body of the second coil, and a portion corresponding to a remaining second width excluding the portion corresponding to the first width is located in a hollow part formed in the coil body of the second coil.

Abstract: Provided are a core for a current transformer and a manufacturing method for the same in which high permittivity is formed in order to optimize electric power acquisition efficiency by magnetic induction at a low current. The provided method of manufacturing a core through the steps of winding a metal ribbon, heat treating a core base, impregnating, cutting and polishing, wherein after the core base which is inserted into a mold is heat treated to implement a shape, the core base separated from the mold is heat treated to manufacture the core for the current transformer having high permittivity.

Abstract: Provided is a heating element having a fuse function. The heating element having a fuse function according to an exemplary embodiment of the present invention includes a plurality of heat sources which generate heat when power is applied, a fuse member of which both end portions are physically connected to two heat sources disposed to be spaced apart from each other by a gap to connect the two heat sources in series and which is fused to electrically disconnect the two heat sources when a temperature is higher than or equal to a preset temperature, and an insulating member which surrounds the plurality of heat sources and the fuse member.

Abstract: An embodiment of the present disclosure provides an electromagnetic inductive power supply apparatus comprising: an upper housing disposed on the upper side of a lower housing and having an elevating guide; a base disposed above the upper housing; a pressing support disposed on the lower side of the base part and having a guide bar which is coupled to the elevating guide so as to move up and down while being guided by the elevating guide, and one end of which is fastened to the lower housing; a lower core installed in the lower housing; and an upper core installed in the upper housing and forming a magnetic circuit inner space through which a line passes when the upper core is connected to the lower core.

Abstract: A detachable seat wireless power transfer and communication system includes: a seat assembly including a seat receiver configured to receive power wirelessly and a seat controller to control the seat receiver; a vehicle assembly spaced apart from the seat assembly at a lower end of the seat assembly; a front hook spaced apart from the seat assembly at a lower end of a front portion of the seat assembly in a length direction to fix a first end of the seat assembly to a vehicle body; a rear latch spaced apart from the seat assembly at a lower end of a rear portion of the seat assembly in the length direction to fix a second end of the seat assembly to the vehicle body; and a front hook switch spaced apart from the vehicle assembly. The vehicle assembly includes a vehicle transmitter configured to wirelessly transmit the power to the seat assembly, and a vehicle controller configured to control the vehicle transmitter.

Abstract: Disclosed is an electromagnetic-inductive power supply apparatus, which switches so that a plurality of coils winding around a current transformer core is connected in series to a rectification unit based on the voltage induced in the current transformer, thereby producing the power within the set range even in a state where the voltage outside the reference is induced. The disclosed electromagnetic-inductive power supply apparatus senses the voltage induced in the current transformer and switches the plurality of unit coils is connected to the rectification unit based on the voltage sensed.

Abstract: Disclosed is an apparatus for controlling the output of a skin care device, which can reduce a peak power to be output to the skin, by suppressing a sudden current change when a direct current voltage is converted into an alternating current voltage. The disclosed apparatus for controlling the output of a skin care device: amplifies a direct current voltage and outputs same; converts the output direct current voltage into an alternating current voltage with a set frequency and outputs same to a pair of contact electrodes; and detects the skin current according to changes in the resistance of the skin to which the alternating current voltage is applied, so as to control the amplification of the direct current voltage.

Abstract: Disclosed is a magnetic induction power supply device, which switches the unit coil having the smallest number of windings to a rectification unit at the initial operation, thereby preventing the parts damaged due to an excessive inrush voltage. The disclosed magnetic induction power supply device switches the unit coil having the smallest number of windings to the rectification unit when emergency power is applied from a first power supply unit or a second power supply unit. The second power supply unit can supply the power source induced in the unit coils to a sensing unit as the emergency power.

Abstract: A power supply device includes a current transformer module capable of adjusting a power induction ratio in order to induce a certain power even when the current of a power line is changed and the current transformer module capable of minimizing the loss in power conversion while providing a certain power even when the current of the power line is changed. The disclosed current transformer module includes a magnetic core constituting a closed loop, a plurality of unit coils wound around the magnetic core, and a switch unit connected to the plurality of unit coils, and the plurality of unit coils include a plurality of unit coils for power-generation.

Abstract: A rear combination lamp installed on a vehicle comprises: a first rear lamp module installed on a later part of the rear side of the vehicle; and a second rear lamp module installed on a back door located at the rear side of the vehicle to be arranged adjacent to the first rear lamp module. The first rear lamp module includes a main light source and a sub-light source. The main light source generates light output from the first rear lamp module, and the sub-light source generates light provided to the second rear lamp module. The second rear lamp module includes a light reception unit and a light direction changing unit. The light reception unit receives light from the sub-light source. The light direction changing unit changes a progressing direction of light received in the light reception unit to output light to the outside.

Abstract: A wireless power transmission apparatus having a first coil configured to wirelessly charge a battery of a first electronic device; a second coil formed to have a size relatively greater than that of the first coil and configured to wirelessly charge a battery of a second electronic device; a shielding member configured to shield a magnetic field generated from the first coil and the second coil; and a case configured to accommodate the first coil, the second coil, and the shielding member, wherein the first coil is disposed so that a portion corresponding to a first width of a coil body overlaps a coil body of the second coil, and a portion corresponding to a remaining second width excluding the portion corresponding to the first width is located in a hollow part formed in the coil body of the second coil.

Abstract: Disclosed are: a skin care device which determines whether, on the basis of a voltage fluctuation according to contact with the skin, the skin care device has been rubbed, and which blocks the output of current through an electrode when rubbing does not occur for at least a set time; and a control method therefor. The disclosed skin care device determines the state of the skin care device on the basis of sensing voltage corresponding to a change in current of a transformation module according to the outputting of alternating current into the skin through contact electrodes, and blocks the output of current of an electrode module if the skin care device is in a fixed state.

Abstract: Provided is a wireless power transfer antenna core. In the wireless power transfer antenna core according to an exemplary embodiment of the present invention, a conductive member configured to serve as an antenna for transmitting or receiving wireless power is wound multiple times along a longitudinal direction. The wireless power transfer antenna core is made of a magnetic body and comprises: a first portion having a first cross-sectional area; and a second portion extending with a predetermined length from an end of the first portion and second cross-sectional area that is relatively larger than the first cross-sectional area, wherein the conductive member is wound multiple times on the first portion.