Patents Assigned to ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
  • Patent number: 12240290
    Abstract: A heat pump system for a vehicle includes a compressor; a four-way valve for transferring refrigerant to external or internal heat exchanger; the external heat exchanger for heat-exchanging between the external air and the refrigerant, the internal heat exchanger for heat-exchanging between the refrigerant and the air supplied to the interior of the vehicle, or for heat-exchanging between the refrigerant and the air supplied to the interior of the vehicle; an electric component cooling circuit which absorbs the heat from electric components in the vehicle, to emit same through electric component radiator, or which absorbs heat, and heat-exchanges with refrigerant/electric component coolant heat exchanger for heat-exchanging between the refrigerant and a coolant; a first expansion means for expanding the refrigerant; and a battery chiller which heat-exchanging between a battery and the refrigerant and transferring the refrigerant to the internal heat exchanger.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: March 4, 2025
    Assignee: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Jong Won Kim, Ho Young Jang, Seong Yeob Lee
  • Publication number: 20250033436
    Abstract: Proposed is an electric vehicle air conditioning system and a control method therefor, the air conditioning system being capable of preventing a phenomenon in which flash fogging occurs on a windshield. The method for the electric vehicle air conditioning system includes determining whether a current air conditioning mode is set to a cooling mode or a heating mode, determining whether a request for entering an internal heat exchanger dry mode is received when the current air conditioning mode is set to the heating mode, entering the internal heat exchanger dry mode and performing an drying operation of an internal heat exchanger for a predetermined time when the request for entering the internal heat exchanger dry mode is received, and operating a set normal heating mode when the internal heat exchanger dry mode is finished.
    Type: Application
    Filed: November 22, 2022
    Publication date: January 30, 2025
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Jin Woo PARK, Ho Young JANG, Doe Hyung LEE, Sung Won KANG, Dong Yeon KIM, Seong Yeob LEE, Kwang Woo NAM
  • Publication number: 20250018770
    Abstract: A heating apparatus for a vehicle of an embodiment of the present invention comprises: a body having an accommodation space with one open side surface formed therein; a heat-generating portion which is installed in the open surface of the accommodation space, and provides heat; and an inlet/outlet portion which is connected to the body so that a heat transfer medium can be input/output into/from the accommodation space, wherein, as the heat-generating portion is installed, a flow path that is in communication with the inlet/outlet portion is formed between the body and the heat-generating portion, and thus, the productivity of the items is noticeably improved.
    Type: Application
    Filed: November 1, 2022
    Publication date: January 16, 2025
    Applicants: YURA TECH CO., LTD., ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Yong Jun PARK, Keun Hyeong KIM, Byung Wook KWON, Sung Won KANG
  • Publication number: 20250003698
    Abstract: An integrated plate-type heat exchanger includes: a condenser configured to condense refrigerant by heat exchange between first coolant and the refrigerant; a chiller configured to cool second coolant by heat exchange between the refrigerant passing through the condenser and the second coolant; an internal heat exchanger configured to facilitate heat exchange between the refrigerant coming from the condenser and the refrigerant coming from the chiller; an expansion valve configured to expand the refrigerant discharged from the internal heat exchanger; a connecting plate unit positioned between the internal heat exchanger and the chiller to form a flow path for the refrigerant; and one or more refrigerant outlets to discharge the refrigerant from the connecting plate unit. The connecting plate unit comprises first and second connecting plates positioned to adhere to each other.
    Type: Application
    Filed: November 15, 2022
    Publication date: January 2, 2025
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Young Sam SHIN, Jun Ho CHOI, Seong Yeob LEE
  • Publication number: 20240044581
    Abstract: A heat exchanger for vehicles includes: a plurality of first stacked plates forming a condensing portion in which a refrigerant is condensed through heat exchange between a coolant and the refrigerant; a receiver container for storing the refrigerant passing through the condensing portion; a plurality of second stacked plates forming a sub-cooling portion for cooling the refrigerant through heat exchange between the coolant and the refrigerant discharged from the receiver container; and an intermediate plate between the first stacked plates and the second stacked plates and comprising through holes through which the refrigerant and the coolant respectively move.
    Type: Application
    Filed: October 22, 2021
    Publication date: February 8, 2024
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Young Sam SHIN, Jeong Kyu PARK, Jun Ho CHOI
  • Publication number: 20240039357
    Abstract: Proposed is an electric compressor for a vehicle configured such that an electrical connection structure between a winding coil of an electric motor and a sealing terminal that connects an inverter unit to the electric motor is improved, thereby being capable of increasing assemblability of a product and reducing a production cost. The electric compressor includes an electric motor provided with a stator, a rotor, and a rotary shaft, a compression unit configured to compress a refrigerant according to a rotation of the rotary shaft, an inverter configured to control driving of the electric motor, a sealing terminal electrically connecting the electric motor to the inverter, and a cluster integrally formed on a portion of the stator, the cluster having an inner portion thereof provided with multiple connection terminals for electrically connecting a coil wound on the stator to multiple connection pins provided at the sealing terminal.
    Type: Application
    Filed: December 3, 2021
    Publication date: February 1, 2024
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventor: Geun Soo LEE
  • Publication number: 20230331066
    Abstract: A heat exchanger for a vehicle configured to perform heat exchange between coolant and refrigerant includes: a plurality of stacked plates sequentially stacked to form a plurality of refrigerant spaces filled with the refrigerant and a plurality of coolant spaces filled with the coolant; a thermal expansion valve disposed in the vicinity of the plurality of the stacked plates; and a connection block disposed between the thermal expansion valve and the plurality of stacked plates. The connection block comprises a refrigerant inlet passage for introducing the refrigerant introduced through the thermal expansion valve into the plurality of the stacked plates and a refrigerant discharge passage for introducing the refrigerant discharged from the plurality of the stacked plates into the thermal expansion valve.
    Type: Application
    Filed: September 29, 2021
    Publication date: October 19, 2023
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Young Sam SHIN, Jeong Kyu PARK, Jun Ho CHOI
  • Patent number: 11649811
    Abstract: A variable capacity swash plate type compressor includes: a cylinder block forming a plurality of cylinder bores; a first housing connected to the cylinder block and forming a crank chamber; a second housing; a drive shaft; a rotor mounted on the drive shaft to rotate with the drive shaft; a swash plate connected to the rotor by a hinge mechanism to rotate together with the rotor; and a plurality of pistons that are respectively disposed in the plurality of the cylinder bores and are connected the swash plate to undergo a linear reciprocating motion by a rotational motion of the swash plate. The hinge mechanism includes: a guide groove provided in the rotor; a connecting arm connected to the swash plate and having a cylindrical receiving space; and a cylindrical guide roller that is disposed in the receiving space in a state of being arranged in the guide groove.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: May 16, 2023
    Assignee: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Jae Bin Seok, Young Ho Bae, Sung Hoon Ryu, Jae Hoon Seo
  • Publication number: 20230008587
    Abstract: A heat exchanger for vehicles includes a condenser configured such that coolant and refrigerant performs heat exchange while flowing in a state separated from each other and being formed by a stacking of a plurality of first heat exchange plates; a gas-liquid separator for separating gaseous components from the refrigerant that has passed through the condenser; a supercooler configured such that the coolant having passed the condenser and the coolant having passed the gas-liquid separator performs heat exchange while flowing in a separated state from each other and being formed by a stacking of a plurality of second heat exchange plates; and a connector that is interposed between the condenser and the supercooler and forms a coolant passage allowing the coolant to flow from the condenser to the supercooler and a refrigerant passage allowing the refrigerant to flow from the condenser to the supercooler via the gas-liquid separator.
    Type: Application
    Filed: December 14, 2020
    Publication date: January 12, 2023
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Young Sam SHIN, Jong Won KIM, Jun Ho CHOI, Yeong Geun JUNG
  • Patent number: 11179994
    Abstract: A heat pump for a vehicle is provided in which the heat pump includes a compressor, an inner heat exchanger, an outer heat exchanger, a first expansion unit, a second expansion unit, an evaporator, an accumulator, a third heat exchanger, a first directional control valve, a second directional control valve, and a dehumidification line, and performs cooling, heating, defrosting, and dehumidifying operations according to the flow of a refrigerant.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 23, 2021
    Assignee: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Jong Won Kim, Ho Young Jang, Jun Ho Choi
  • Publication number: 20210222683
    Abstract: A variable capacity swash plate type compressor includes: a cylinder block forming a plurality of cylinder bores; a first housing connected to the cylinder block and forming a crank chamber; a second housing; a drive shaft; a rotor mounted on the drive shaft to rotate with the drive shaft; a swash plate connected to the rotor by a hinge mechanism to rotate together with the rotor; and a plurality of pistons that are respectively disposed in the plurality of the cylinder bores and are connected the swash plate to undergo a linear reciprocating motion by a rotational motion of the swash plate. The hinge mechanism includes: a guide groove provided in the rotor; a connecting arm connected to the swash plate and having a cylindrical receiving space; and a cylindrical guide roller that is disposed in the receiving space in a state of being arranged in the guide groove.
    Type: Application
    Filed: September 14, 2018
    Publication date: July 22, 2021
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Jae Bin SEOK, Young Ho BAE, Sung Hoon RYU, Jae Hoon SEO
  • Publication number: 20200406703
    Abstract: An air mixing device that is arranged in a space where hot air passing through a heater core of an HVAC module and cold air passing through an evaporator core converge to mix the warm air and the cold air includes: a plurality of warm air guide tubes respectively forming a warm air guide passage for guiding the warm air to a defrost outlet; a first cold air guide provided on a downstream side of the warm air guide tube so that a cold air guide passage guiding the cold air to a vent outlet and a foot outlet is formed between the warm air guide tubes; and a second cold air guide installed to divide air flow through the cold air guide passage. The warm air guide tube is provided with a warm air branching window formed such that a portion of the warm air flowing through the warm air guide passage is branched and mixed with the cold air passing through the cold air guide passage.
    Type: Application
    Filed: October 19, 2017
    Publication date: December 31, 2020
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Jae Ho JEONG, Jae Chang PARK, Jin Hwa KIM