Abstract: A mobile communication terminal side button structure according to an aspect of the present invention comprises: a frame having a button hole formed thereon; a button inserted into the button hole, a pressurizing protrusion being formed on the inner surface of the button; a piezoelectric element, one surface of which contacts the pressurizing protrusion; and a support member arranged on the other surface of the piezoelectric element so as to support both side edges of the piezoelectric element.

Abstract: Disclosed is a battery module, which includes a battery cell assembly including a plurality of battery cells stacked on each other along a vertical direction, a heatsink configured to cover one side of the battery cell assembly, and a pair of cooling plates connected to the heatsink to cover both side surfaces of the battery cell assembly, respectively, the pair of cooling plates having a coolant channel formed along a stacking direction of the plurality of battery cells.

Abstract: Disclosed herein is a battery pack including at least one battery module including a battery cell stack constituted by two or more stacked battery cells that can be charged and discharged and a pack case for surrounding an outside of the battery module, wherein a liquid refrigerant isolated from an inner space of the pack case removes heat conducted from the battery cells through cooling of the pack case.

Abstract: Disclosed is a radiofrequency (RF) module including a surface acoustic wave (SAW) device that includes a piezoelectric substrate, an interdigital transducer (IDT) electrode and an input/output electrode formed on one surface of the piezoelectric substrate, and a bump joined to the input/output electrode, a printed circuit board (PCB) that includes a terminal corresponding to the input/output electrode and on which the SAW device is mounted to join the bump to the terminal, a molding portion that covers the SAW device, and a dam portion that surrounds the IDT electrode, the input/output electrode, and the bump not to allow a molding material that forms the molding portion to penetrate a space in which the IDT electrode, the input/output electrode, and the bump are arranged.

Abstract: A battery module including an array of cooling fins having different thicknesses is provided. The battery module includes: a plurality of battery units arranged in one direction; a plurality of cooling fins between adjacent battery units; and a heat sink coupled to ends of the plurality of cooling fins, wherein each cooling fin has a structure in which a pair of sub-cooling fins are face-to-face coupled to each other, and thicknesses of the plurality of cooling fins are reduced toward the side region from the central region due to a difference in a thickness of at least one of the pair of sub-cooling fins. Since heat is not accumulated at the central region, the battery module has uniform temperature distribution while being charged or discharged.

Abstract: According to an aspect of the present disclosure, there is provided a cell cover for a secondary battery, which accommodates at least one secondary battery in an internal space and is mounted in a groove formed on a top surface of a cooling plate having an uneven plate shape, the cell cover including a first side plate and a second side plate facing each other to form opposite side surfaces of the internal space, a top plate forming a top surface of the internal space and connecting upper edges of the first side plate and the second side plate, and a first bottom plate extending from a lower edge of the first side plate and a second bottom plate extending from a lower edge of the second side plate to face the first bottom plate, the first bottom plate and the second bottom plate forming a bottom surface of the internal space, in which the first bottom plate and the second bottom plate are inclined downwardly at an angle with respect to a horizontal plane, respectively.

Abstract: Provided herein is a battery module that is capable of improving cooling efficiency despite a compact structure without using numerous members. The battery module according to the present disclosure includes a battery stack where batteries are stacked; and a battery management system, and includes a heat radiation paint coating layer that includes a heat radiation material in at least a portion of the constituting components.

Abstract: The present disclosure describes a voltage equalization apparatus for equalizing voltages of adjacent power storage unit racks included in a power storage system. The voltage equalization apparatus according to the present disclosure includes a resistor to which a current flowing from a high-voltage unit rack to a low-voltage unit rack is applied; and a circuit breaker for voltage equalization installed on a line through which the current flows.

Abstract: Disclosed herein is a battery pack including at least one battery module including a battery cell stack constituted by two or more stacked battery cells that can be charged and discharged and a pack case for surrounding an outside of the battery module, wherein a liquid refrigerant isolated from an inner space of the pack case removes heat conducted from the battery cells through cooling of the pack case.

Abstract: Disclosed is a unit rack for power storage having a plurality of cell modules which are series- or parallel-connected with each other; a housing for accommodating the cell modules; a receiving part of a circuit breaker, formed or installed in the housing, and having a ground clearance higher than the highest ground clearance of the cell modules; a circuit breaker received in the receiving part and connected between the connection lines; and a receiving part cover for closing the receiving part of the circuit breaker.

Abstract: The present disclosure describes a power storage apparatus including a housing made of a durable material and defining an installation space of a plurality of secondary batteries; a plurality of secondary batteries accommodated in the housing and connected to each other in series or in parallel; a Battery Management System (BMS) for controlling charge and discharge of the plurality of secondary batteries and monitoring an electric characteristic value thereof; and a status setting switch for setting a status of the BMS. According to the present disclosure, a power storage system may be easily configured by means of a simple BMS setting. Also, if any one of the power storage apparatuses is not working properly, the power storage apparatus with a problem may be easily distinguished by the naked eyes of a manager, which facilitates easy maintenance and repair.

Abstract: The present disclosure describes a voltage equalization apparatus for equalizing voltages of adjacent power storage unit racks included in a power storage system. The voltage equalization apparatus according to the present disclosure includes a resistor to which a current flowing from a high-voltage unit rack to a low-voltage unit rack is applied; and a circuit breaker for voltage equalization installed on a line through which the current flows.

Abstract: The present disclosure describes a power storage apparatus including a housing made of a durable material and defining an installation space of a plurality of secondary batteries; a plurality of secondary batteries accommodated in the housing and connected to each other in series or in parallel; a Battery Management System (BMS) for controlling charge and discharge of the plurality of secondary batteries and monitoring an electric characteristic value thereof; and a status setting switch for setting a status of the BMS. According to the present disclosure, a power storage system may be easily configured by means of a simple BMS setting. Also, if any one of the power storage apparatuses is not working properly, the power storage apparatus with a problem may be easily distinguished by the naked eyes of a manager, which facilitates easy maintenance and repair.

Abstract: Disclosed is a unit rack for power storage having a plurality of cell modules which are series- or parallel-connected with each other; a housing for accommodating the cell modules; a receiving part of a circuit breaker, formed or installed in the housing, and having a ground clearance higher than the highest ground clearance of the cell modules; a circuit breaker received in the receiving part and connected between the connection lines; and a receiving part cover for closing the receiving part of the circuit breaker.

Abstract: A LED lighting assembly includes a substrate defining a body and a central hole surrounded by the body, a conductive mass positioned in the central hole of the substrate, a LED chip defining a bottom attached to the conductive mass, and a shell mounted on the body and forming a room together with the body.

Abstract: A LED lighting device includes a substrate defining a groove formed by a sidewall and a bottom, a LED chip received in the groove, a reflector attached to the side wall, a circuit protection module electrically connected with the LED chip, and a notch defined on the bottom for receiving the circuit protection module.

Abstract: Disclosure is a forward-looking 3D imaging radar, comprising: a transmitting unit which generates RF signals to be radiated for observing object in front of the radar; a transmitting antenna which radiates the RF signal generated by the transmitting unit; a receiving antenna which receives signals radiated from the transmitting antenna and reflected by the object in front of the radar; a receiving unit which mixes the signal received by the receiving antenna and the branched signal from the transmitting unit, and converts the signal to digital signal; and a signal processor which controls the operations of the transmitting unit and receiving unit, sends command to the transmitting unit to generate RF signals, receives the digitally converted signal from the receiving unit and extracts phase information of the object in front of the radar, and generates 3D radar image by producing altitude information based on the principle of interferometer.

Abstract: Disclosure is a forward-looking 3D imaging radar, comprising: a transmitting unit which generates RF signals to be radiated for observing object in front of the radar; a transmitting antenna which radiates the RF signal generated by the transmitting unit; a receiving antenna which receives signals radiated from the transmitting antenna and reflected by the object in front of the radar; a receiving unit which mixes the signal received by the receiving antenna and the branched signal from the transmitting unit, and converts the signal to digital signal; and a signal processor which controls the operations of the transmitting unit and receiving unit, sends command to the transmitting unit to generate RF signals, receives the digitally converted signal from the receiving unit and extracts phase information of the object in front of the radar, and generates 3D radar image by producing altitude information based on the principle of interferometer.

Abstract: A radio frequency switching apparatus wherein a filter for a transmitter module passes a transmission frequency to an antenna in a transmission mode and isolates the antenna and the transmitter module from each other in a reception mode. The radio frequency switching apparatus comprises a filter connected between the transmitter module and the antenna for passing a transmitted signal from the transmitter module to the antenna in the transmission mode. The filter also acts to cut off a reception frequency in the reception mode. The switching apparatus further comprises a first switching device for isolating the transmitter module and the antenna from each other in the reception mode, and a second switching device for isolating the antenna and a receiver module from each other in the transmission mode. No separate ¼ wavelength strip line is required, making the circuitry of the switching apparatus simpler and, thus, the size thereof smaller.

Abstract: A radio frequency switching apparatus wherein a filter for a transmitter module passes a transmission frequency to an antenna in a transmission mode and isolates the antenna and the transmitter module from each other in a reception mode. The radio frequency switching apparatus comprises a filter connected between the transmitter module and the antenna for passing a transmitted signal from the transmitter module to the antenna in the transmission mode. The filter also acts to cut off a reception frequency in the reception mode. The switching apparatus further comprises a first switching device for isolating the transmitter module and the antenna from each other in the reception mode, and a second switching device for isolating the antenna and a receiver module from each other in the transmission mode. No separate 1/4 wavelength strip line is required, making the circuitry of the switching apparatus simpler and, thus, the size thereof smaller.