Patents by Inventor Sung Wook Na
Sung Wook Na has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240128136Abstract: A wafer level package includes: a substrate; an element portion disposed on one surface of the substrate; a cap disposed on the substrate to cover the element portion; a connection portion electrically connected to the element portion; and a bonding portion disposed on an outer side of the connection portion, wherein the bonding portion is disposed on a first surface of one of the substrate and the cap, wherein one end portion of the connection portion is disposed on a second surface having a step difference from the first surface, and wherein the connection portion and the bonding portion are formed of a eutectic material.Type: ApplicationFiled: February 16, 2023Publication date: April 18, 2024Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Seung Wook PARK, Seong Hun NA, Jae Hyun JUNG, Kwang Su KIM, Sung Jun LEE, Yong Suk KIM, Dong Hyun PARK
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Patent number: 11843141Abstract: A thermal management system for a fuel cell vehicle includes a first line including a coolant pump and a fuel cell stack, a second line including a coolant heater and a phase change material (PCM) and connected to the first line to form a first loop in which the coolant pump, the stack, the coolant heater, and the PCM are arranged, a third line including a radiator and connected to the first line to form a second loop in which the coolant pump, the stack, and the radiator are arranged, and an opening and closing valve opening and closing each of the first line, the second line, and the third line to allow the coolant to circulate in at least one of the first loop and the second loop, wherein the PCM is configured to be heat-exchanged with the coolant heater and the coolant.Type: GrantFiled: August 23, 2021Date of Patent: December 12, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Hyuck Roul Kwon, Nam Woo Lee, Sung Wook Na
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Patent number: 11777112Abstract: A heat exchange apparatus for cooling water of a fuel cell includes a body, through which a cooling water pipe having cooling water flowing therethrough to be supplied to a fuel cell stack, passes; and a heat accumulator provided in an interior of the body and filled with a PCM heat accumulation material that exchanges heat with the cooling water. The body includes a medium space provided between the cooling water pipe and the heat accumulator such that the heat accumulator is spaced apart from the cooling water pipe. The PCM heat accumulation material exchanges heat with the cooling water by a medium of the medium space.Type: GrantFiled: August 12, 2022Date of Patent: October 3, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Nam Woo Lee, Hyuck Roul Kwon, Sung Wook Na
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Patent number: 11701743Abstract: An apparatus for manufacturing a heat exchanger for a vehicle has a plurality of cooling panels bonded to each other by pressing a cooling panel module where the plurality of cooling panels are stacked vertically, including: a fixing portion for supporting top and bottom ends of the cooling panel module; and a pair of elastic portions that are provided between the top or bottom end of the cooling panel module and the fixing portion, and are arranged symmetrically based on a top or bottom surface of the cooling panel module to compress the cooling panel module.Type: GrantFiled: November 13, 2018Date of Patent: July 18, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sung Wook Na, Hun Woo Park, Chi Myung Kim, Il Hwan Kim, Sung Bok Yoo, Soo Hwan Park
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Publication number: 20220393194Abstract: A heat exchange apparatus for cooling water of a fuel cell includes a body, through which a cooling water pipe having cooling water flowing therethrough to be supplied to a fuel cell stack, passes; and a heat accumulator provided in an interior of the body and filled with a PCM heat accumulation material that exchanges heat with the cooling water. The body includes a medium space provided between the cooling water pipe and the heat accumulator such that the heat accumulator is spaced apart from the cooling water pipe. The PCM heat accumulation material exchanges heat with the cooling water by a medium of the medium space.Type: ApplicationFiled: August 12, 2022Publication date: December 8, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Nam Woo LEE, Hyuck Roul KWON, Sung Wook NA
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Patent number: 11476474Abstract: A heat exchange apparatus for cooling water of a fuel cell includes a body, through which a cooling water pipe having cooling water flowing therethrough to be supplied to a fuel cell stack, passes; and a heat accumulator provided in an interior of the body and filled with a PCM heat accumulation material that exchanges heat with the cooling water. The body includes a medium space provided between the cooling water pipe and the heat accumulator such that the heat accumulator is spaced apart from the cooling water pipe. The PCM heat accumulation material exchanges heat with the cooling water by a medium of the medium space.Type: GrantFiled: January 24, 2020Date of Patent: October 18, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Nam Woo Lee, Hyuck Roul Kwon, Sung Wook Na
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Publication number: 20210384534Abstract: A thermal management system for a fuel cell vehicle includes a first line including a coolant pump and a fuel cell stack, a second line including a coolant heater and a phase change material (PCM) and connected to the first line to form a first loop in which the coolant pump, the stack, the coolant heater, and the PCM are arranged, a third line including a radiator and connected to the first line to form a second loop in which the coolant pump, the stack, and the radiator are arranged, and an opening and closing valve opening and closing each of the first line, the second line, and the third line to allow the coolant to circulate in at least one of the first loop and the second loop, wherein the PCM is configured to be heat-exchanged with the coolant heater and the coolant.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Hyuck Roul KWON, Nam Woo LEE, Sung Wook NA
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Patent number: 11143316Abstract: The present disclosure provides a seal member that is applied to a valve assembly. The seal member includes: a cylindrical metal part supporting the seal member and defining a channel through which cooling water flows; and a valve seat provided to surround an outer surface of the cylindrical metal part and keeping the valve assembly hermetic, in which the valve seat has a first sealing portion protruding from a second end of the cylindrical metal part in an opposite direction to a direction in which the cylindrical metal part extends.Type: GrantFiled: October 8, 2020Date of Patent: October 12, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Hun Woo Park, Sung Wook Na
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Patent number: 11139491Abstract: A thermal management system for a fuel cell vehicle includes a first line including a coolant pump and a fuel cell stack, a second line including a coolant heater and a phase change material (PCM) and connected to the first line to form a first loop in which the coolant pump, the stack, the coolant heater, and the PCM are arranged, a third line including a radiator and connected to the first line to form a second loop in which the coolant pump, the stack, and the radiator are arranged, and an opening and closing valve opening and closing each of the first line, the second line, and the third line to allow the coolant to circulate in at least one of the first loop and the second loop, wherein the PCM is configured to be heat-exchanged with the coolant heater and the coolant.Type: GrantFiled: December 6, 2016Date of Patent: October 5, 2021Assignee: HYUNDAI MOTOR COMPANYInventors: Hyuck Roul Kwon, Nam Woo Lee, Sung Wook Na
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Publication number: 20210108731Abstract: The present disclosure provides a seal member that is applied to a valve assembly. The seal member includes: a cylindrical metal part supporting the seal member and defining a channel through which cooling water flows; and a valve seat provided to surround an outer surface of the cylindrical metal part and keeping the valve assembly hermetic, in which the valve seat has a first sealing portion protruding from a second end of the cylindrical metal part in an opposite direction to a direction in which the cylindrical metal part extends.Type: ApplicationFiled: October 8, 2020Publication date: April 15, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Hun Woo PARK, Sung Wook NA
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Patent number: 10865673Abstract: An apparatus for discharging water in exhaust fluid is disclosed. The apparatus includes a body having an inlet disposed on an exhaust path for exhausting exhaust fluid exhausted from a fuel cell stack to the outside and through which the exhaust fluid is introduced, an outlet communicating with the outside, an interior space allowing the inlet and the outlet to communicate each other, and a discharge passage communicating with the outside to discharge water in the interior space. The apparatus further includes a first resistance unit disposed on a flow path along which the exhaust fluid flows in the interior space and having first fine holes through which at least a portion of the exhaust fluid passes, and a second resistance unit disposed on a discharge path along which the water in the interior space is discharged through the discharge passage and having second fine holes through which the water passes.Type: GrantFiled: April 8, 2020Date of Patent: December 15, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sung Wook Na, Hun Woo Park, Myung Ju Jung, Hyun Young Park, Ju Chan Jang, Jun Ho Jang
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Patent number: 10816100Abstract: A sealing member of a multi-direction changeover valve for maintaining air-tightness between an orifice formed in a valve body rotatably installed in a valve housing and a port through which fluid flows into or out of the valve housing. The sealing member includes an annular seal part and an annular frame inserted into the seal part to support the seal part such that the seal part is brought into close contact with an inner circumferential surface of the port.Type: GrantFiled: March 15, 2019Date of Patent: October 27, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sung Wook Na, Hun Woo Park
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Patent number: 10818944Abstract: Disclosed is a heat exchange apparatus for cooling water of a fuel cell, the heat exchange apparatus including a body, through which a cooling water pipe, through which cooling water that is to be supplied to a fuel cell stack flows, passes, and a heat accumulator provided in the interior of the body and filled with a PCM heat accumulation material that is to exchange heat with the cooling water. The body includes a medium space provided between the cooling water pipe and the heat accumulator and filled with a medium material. The PCM heat accumulation material exchanges heat with the cooling water by the medium material.Type: GrantFiled: October 30, 2017Date of Patent: October 27, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Nam Woo Lee, Hyuck Roul Kwon, Sung Wook Na
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Patent number: 10753479Abstract: A mechanical valve for adjusting coolant flow which may be opened and closed based on the pressure of a coolant and a fuel cell cooling system using the same are provided. The valve has a mechanical valve structure to be opened and closed by the pressure of a coolant introduced into a coolant inlet and thus blocks and permits the coolant circulated to an ion filter line during operation of a fuel cell stack at the maximum output. The valve performs a coolant flow blocking function executed by a conventional electronic valve and thus a fuel cell cooling system has a simplified structure using the valve.Type: GrantFiled: December 11, 2018Date of Patent: August 25, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sung Wook Na, Hun Woo Park
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Publication number: 20200232358Abstract: An apparatus for discharging water in exhaust fluid is disclosed. The apparatus includes a body having an inlet disposed on an exhaust path for exhausting exhaust fluid exhausted from a fuel cell stack to the outside and through which the exhaust fluid is introduced, an outlet communicating with the outside, an interior space allowing the inlet and the outlet to communicate each other, and a discharge passage communicating with the outside to discharge water in the interior space. The apparatus further includes a first resistance unit disposed on a flow path along which the exhaust fluid flows in the interior space and having first fine holes through which at least a portion of the exhaust fluid passes, and a second resistance unit disposed on a discharge path along which the water in the interior space is discharged through the discharge passage and having second fine holes through which the water passes.Type: ApplicationFiled: April 8, 2020Publication date: July 23, 2020Inventors: Sung Wook Na, Hun Woo Park, Myung Ju Jung, Hyun Young Park, Ju Chan Jang, Jun Ho Jang
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Publication number: 20200161676Abstract: A heat exchange apparatus for cooling water of a fuel cell includes a body, through which a cooling water pipe having cooling water flowing therethrough to be supplied to a fuel cell stack, passes; and a heat accumulator provided in an interior of the body and filled with a PCM heat accumulation material that exchanges heat with the cooling water. The body includes a medium space provided between the cooling water pipe and the heat accumulator such that the heat accumulator is spaced apart from the cooling water pipe. The PCM heat accumulation material exchanges heat with the cooling water by a medium of the medium space.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Inventors: Nam Woo LEE, Hyuck Roul KWON, Sung Wook NA
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Patent number: 10648379Abstract: An apparatus for discharging water in exhaust fluid is disclosed. The apparatus includes a body having an inlet disposed on an exhaust path for exhausting exhaust fluid exhausted from a fuel cell stack to the outside and through which the exhaust fluid is introduced, an outlet communicating with the outside, an interior space allowing the inlet and the outlet to communicate each other, and a discharge passage communicating with the outside to discharge water in the interior space. The apparatus further includes a first resistance unit disposed on a flow path along which the exhaust fluid flows in the interior space and having first fine holes through which at least a portion of the exhaust fluid passes, and a second resistance unit disposed on a discharge path along which the water in the interior space is discharged through the discharge passage and having second fine holes through which the water passes.Type: GrantFiled: November 30, 2017Date of Patent: May 12, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA Motors CorporationInventors: Sung Wook Na, Hun Woo Park, Myung Ju Jung, Hyun Young Park, Ju Chan Jang, Jun Ho Jang
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Publication number: 20200141501Abstract: A sealing member of a multi-direction changeover valve for maintaining air-tightness between an orifice formed in a valve body rotatably installed in a valve housing and a port through which fluid flows into or out of the valve housing. The sealing member includes an annular seal part and an annular frame inserted into the seal part to support the seal part such that the seal part is brought into close contact with an inner circumferential surface of the port.Type: ApplicationFiled: March 15, 2019Publication date: May 7, 2020Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sung Wook Na, Hun Woo Park
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Patent number: 10608263Abstract: A coolant bypass structure includes a main loop forming a channel in which coolant circulates; a bypass loop connected to the main loop and forming a selective bypass channel; and a stack bypass valve provided between the main loop and the bypass loop to open and close the bypass loop according to a predetermined temperature, and provided with an outlet temperature sensor. The coolant bypass structure may improve marketability by decreasing the starting time of the fuel cell vehicle in a frozen state and improve power efficiency.Type: GrantFiled: September 15, 2015Date of Patent: March 31, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sung Wook Na, Sun Heum Baek, Hyung Kook Kim, Hun Woo Park, Dae Jong Kim, Su Dong Han
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Patent number: 10535887Abstract: A fuel cell system includes: a first line provided with a fuel cell stack and allowing a coolant to be circulated therethrough; and a second line provided with an air conditioning system and connected to the first line to allow a portion of the coolant to be selectively circulated therethrough, wherein the air conditioning system includes: a first flow path including a first inlet through which first air is introduced; a second flow path including a second inlet through which second air is introduced, and one or more communication holes communicating with the first flow path; an opening and closing device independently opening and closing the second inlet and the communication holes; a cooler disposed in the first flow path and cooling the air passing through the first flow path; and a heater core disposed in the second flow path and exchanging heat between the coolant passing through the second line and the air passing through the second flow path.Type: GrantFiled: December 4, 2017Date of Patent: January 14, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Nam Woo Lee, Hyuck Roul Kwon, Sung Wook Na