Abstract: A battery module and an energy storage device including a battery rack including a plurality of battery modules, and a rack fuse cutting off a circuit when an overcurrent occurs in the battery rack, each of the plurality of battery modules includes a battery cell and a module fuse that cuts off a circuit when an overcurrent occurs in the battery module, the module fuse has a voltage specification capable of corresponding to an output voltage of the battery rack, and has a short circuit specification lower than a short circuit specification of the rack fuse.

Abstract: A fuse according to an embodiment disclosed herein includes a printed circuit board (PCB); a conductive pattern disposed on the PCB; a film disposed at lateral sides of the conductive pattern or on a partial region of the conductive pattern to leave an open region; and a coating disposed on the conductive pattern and the film.

Abstract: The present invention relates to a pattern fuse including a flame retardant coating layer and an opening, the pattern fuse being configured to prevent fire outbreak due to overcurrent generated when a circuit pattern is operated and to designate a breakage position, a flexible printed circuit board including the same, and a battery module including the same, wherein it is possible to prevent fire outbreak even when the pattern fuse is heated to a high temperature as the result of operation of the pattern fuse, and the pattern fuse is broken by fusing at a specific position thereof.

Abstract: A pattern fuse includes a lower film layer, an adhesive layer stacked on the lower film layer, a circuit pattern made of a conductive material and provided on the adhesive layer, an upper film layer stacked on the adhesive layer and the circuit pattern and a coating layer configured to cover the opening of the upper film layer, wherein the coating layer includes a flame retardant material. The upper film layer has an opening formed therein that is configured to allow a part or the entirety of the circuit pattern to be exposed therethrough. A method of manufacturing the pattern fuse is also provided.

Abstract: An integrated switching device in which a contactor unit which is capable of controlling a continuity state of an electric circuit, a blocking unit which is capable of cutting a contactor and blocking a current when abnormality is generated in the contactor or a current having a size exceeding a permitted current range of the contactor is generated, and a current measuring unit which is capable of measuring a current by using shunt resistor are integrated into one device, thereby performing various functions only with one device.

Abstract: A pattern fuse includes a lower film layer, an adhesive layer stacked on the lower film layer, a circuit pattern made of a conductive material and provided on the adhesive layer, an upper film layer stacked on the adhesive layer and the circuit pattern and a coating layer configured to cover the opening of the upper film layer, wherein the coating layer includes a flame retardant material. The upper film layer has an opening formed therein that is configured to allow a part or the entirety of the circuit pattern to be exposed therethrough. A method of manufacturing the pattern fuse is also provided.

Abstract: An integrated switching device in which a contactor unit which is capable of controlling a continuity state of an electric circuit, a blocking unit which is capable of cutting a contactor and blocking a current when abnormality is generated in the contactor or a current having a size exceeding a permitted current range of the contactor is generated, and a current measuring unit which is capable of measuring a current by using shunt resistor are integrated into one device, thereby performing various functions only with one device.

Abstract: An integrated switching device in which a contactor unit which is capable of controlling a continuity state of an electric circuit, a blocking unit which is capable of cutting a contactor and blocking a current when abnormality is generated in the contactor or a current having a size exceeding a permitted current range of the contactor is generated, and a current measuring unit which is capable of measuring a current by using shunt resistor are integrated into one device, thereby performing various functions only with one device.

Abstract: A battery module in an energy storage device used with a plurality of battery modules in a battery rack and including a rack fuse that cuts off a circuit when an overcurrent occurs includes a battery cell and a module fuse for cutting off a circuit when overcurrent occurs, the module fuse starts to melt later than a melting completion time point of the rack fuse.

Abstract: A fusing apparatus including a main connection member provided on a main path and having one side and the other side electrically connected to the main path, respectively, a sub connection member provided on a sub path and having one side and the other side electrically connected to the sub path, respectively, and a shifting member provided between the main connection member and the sub connection member and configured to be moved and coupled from the main connection member to sub connection member to shift a connection relation from a connected state of the main connection member to a connected state of the sub connection member.

Abstract: A battery module and an energy storage device including a battery rack including a plurality of battery modules, and a rack fuse cutting off a circuit when an overcurrent occurs in the battery rack, each of the plurality of battery modules includes a battery cell and a module fuse that cuts off a circuit when an overcurrent occurs in the battery module, the module fuse has a voltage specification capable of corresponding to an output voltage of the battery rack, and has a short circuit specification lower than a short circuit specification of the rack fuse.

Abstract: An energy storage system (ESS) including a plurality of battery modules and a battery protection unit, the battery protection unit includes a microcontroller (MCU) for controlling charge and discharge of the ESS, a first main contactor and a second main contactor connecting or disconnecting between the plurality of battery modules and an output terminal of the ESS under control of the MCU, and a disconnector disposed between the first main contactor and the second main contactor and connecting or disconnecting the plurality of battery modules, the first main contactor, and the second main contactor, the first main contactor and the second main contactor are turned on or off, by the MCU, depending on whether a predetermined voltage is applied.

Abstract: The present invention relates to an apparatus and a method for protecting a MOSFET relay by using a voltage detector and a signal fuse, which calculate a detection voltage value through a voltage detector from an electrically conducted current value of a MOSFET relay provided in a battery main circuit for a vehicle and pre-block current applied to the MOSFET relay by operating a signal fuse when the calculated voltage value is more than a predetermined threshold to protect the MOSFET relay from being burned.

Abstract: A fusing apparatus including a main connection member provided on a main path and having one side and the other side electrically connected to the main path, respectively, a sub connection member provided on a sub path and having one side and the other side electrically connected to the sub path, respectively, and a shifting member provided between the main connection member and the sub connection member and configured to be moved and coupled from the main connection member to sub connection member to shift a connection relation from a connected state of the main connection member to a connected state of the sub connection member.

Abstract: An integrated switching device in which a contactor unit which is capable of controlling a continuity state of an electric circuit, a blocking unit which is capable of cutting a contactor and blocking a current when abnormality is generated in the contactor or a current having a size exceeding a permitted current range of the contactor is generated, and a current measuring unit which is capable of measuring a current by using shunt resistor are integrated into one device, thereby performing various functions only with one device.

Abstract: The present invention relates to an apparatus and a method for protecting a MOSFET relay by using a voltage detector and a signal fuse, which calculate a detection voltage value through a voltage detector from an electrically conducted current value of a MOSFET relay provided in a battery main circuit for a vehicle and pre-block current applied to the MOSFET relay by operating a signal fuse when the calculated voltage value is more than a predetermined threshold to protect the MOSFET relay from being burned.