Patents by Inventor CHAN HO BAEK
CHAN HO BAEK 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: 20240096888Abstract: A super-steep switching device and an inverter device using the same are disclosed. The super-steep switching device includes a semiconductor channel disposed on a substrate and made of a semiconductor material having impact ionization characteristic; a source electrode and a drain electrode in contact with the semiconductor channel, wherein the source electrode and the drain electrode are disposed on the substrate and are spaced apart from each other; and a gate electrode disposed on the semiconductor channel so as to overlap only a portion of the semiconductor channel, wherein a top surface of the semiconductor channel includes a first area overlapping the gate electrode, and a second area non-overlapping the gate electrode, wherein a ratio of a length of the first area and a length of the second area is in a range of 1:0.1 to 0.4.Type: ApplicationFiled: September 8, 2022Publication date: March 21, 2024Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Hae Ju CHOI, Tae Ho KANG, Chan Woo KANG, Hyeon Je SON, Jin Hong PARK, Sung Joo LEE, Sung Pyo BAEK
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Publication number: 20220376581Abstract: The present disclosure relates to a 3-phase connector integrated stator and an electric compressor including the same. The 3-phase connector integrated stator includes: a stator including a plurality of teeth formed to extend from a cylindrical core, insulators coupled to the core and the teeth so as to surround outer sides of the core and the teeth, and coils wound on outer sides of the insulators at the respective teeth; a motor cover coupled to an upper insulator in a central axis direction of the stator and having a connector coupling part protruding upwardly from an upper plate; and a 3-phase connector inserted into and coupled to the connector coupling part of the motor cover and having connection pins connected to 3-phase coils of the stator. Therefore, the 3-phase connector may be easily assembled to the stator, and the connector pins may be easily assembled to the 3-phase connector.Type: ApplicationFiled: May 11, 2022Publication date: November 24, 2022Inventors: Chan Ho BAEK, Sae Bom KIM, Gwang Hoon SONG, Hyo Keun JEON, Suk Jae CHUNG, Kyung Ah HONG
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Patent number: 11143174Abstract: A compressor that includes a casing, a compression mechanism provided inside the casing to compress a refrigerant, a rotary shaft transmitting a rotational force to the compression mechanism from a drive source provided outside the casing, a clutch connecting the drive source and the rotary shaft by a magnetic force generated when electric power is applied to the clutch and disconnecting the drive source and the rotary shaft by losing the magnetic force when the electric power applied thereto is cut off, and a rotation measurement means for receiving the magnetic force from the clutch to measure a change in magnetic flux according to the rotation of the rotary shaft and measure a rotational speed of the rotary shaft. Thus, it is possible to measure the rotational speed of the rotary shaft without including a permanent magnet.Type: GrantFiled: March 21, 2018Date of Patent: October 12, 2021Assignee: Hanon SystemsInventors: Chan Ho Baek, Jung Myung Kwak, Sang Dong Min, Kyung Jae Lee
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Publication number: 20190376497Abstract: A compressor that includes a casing, a compression mechanism provided inside the casing to compress a refrigerant, a rotary shaft transmitting a rotational force to the compression mechanism from a drive source provided outside the casing, a clutch connecting the drive source and the rotary shaft by a magnetic force generated when electric power is applied to the clutch and disconnecting the drive source and the rotary shaft by losing the magnetic force when the electric power applied thereto is cut off, and a rotation measurement means for receiving the magnetic force from the clutch to measure a change in magnetic flux according to the rotation of the rotary shaft and measure a rotational speed of the rotary shaft. Thus, it is possible to measure the rotational speed of the rotary shaft without including a permanent magnet.Type: ApplicationFiled: March 21, 2018Publication date: December 12, 2019Inventors: Chan Ho Baek, Jung Myung Kwak, Sang Dong Min, Kyung Jae Lee
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Patent number: 10476326Abstract: A rotor is for a permanent magnet embedded-type motor and a motor using the same. A rotor for a permanent magnet embedded-type motor includes a rotor core having a rotary shaft fixed to a center and having a plurality of magnet insertion holes formed to be spaced along a circumferential direction and a plurality of pairs of permanent magnets, respectively, inserted into each of the plurality of magnet insertion holes in a V-shape to be gradually spaced apart from each other toward a radially outer side. Each of the plurality of magnet insertion holes includes a pair of inner sides facing each other, and a barrier hole is formed to expand an inner space of each of the magnet insertion holes to protrude from the pair of inner sides, respectively.Type: GrantFiled: December 16, 2016Date of Patent: November 12, 2019Assignee: Hanon SystemsInventors: Jeong Gil Heo, Chan Ho Baek, Bong Kyun Seo
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Publication number: 20190242629Abstract: A method of controlling an electric compressor, includes aligning a position of a rotor after an electric compressor is powered on; determining whether a refrigerant is in a liquid phase or in a gas phase; preheating the refrigerant by applying power to the electric compressor according to the phase of the refrigerant; and controlling the electric compressor wherein the electric compressor is operated after the refrigerant is preheated.Type: ApplicationFiled: April 19, 2019Publication date: August 8, 2019Inventors: Jeong Gil Heo, Soo Cheol Jeong, Gun Woong Park, Chan Ho Baek, Jae Sik Son
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Patent number: 10309699Abstract: An electric compressor and a method of controlling the same, the electric compressor including a detection unit for detecting a phase of refrigerant in the electric compressor, a connection unit wound at a position adjacent to a passage of a housing for movement of a refrigerant in the electric compressor, and a control unit for performing control according to the phase of refrigerant by differently controlling power applied to the connection unit in response to data detected by the detection unit. The method including aligning a position of a rotor after an electric compressor is turned on, determining whether a refrigerant is in liquid phase or in gas phase, preheating the refrigerant by applying power to the electric compressor according to the phase of refrigerant, and controlling the electric compressor such that the electric compressor is normally operated after the refrigerant is preheated.Type: GrantFiled: April 10, 2015Date of Patent: June 4, 2019Assignee: HANON SYSTEMSInventors: Jeong Gil Heo, Soo Cheol Jeong, Gun Woong Park, Chan Ho Baek, Jae Sik Son
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Patent number: 10205366Abstract: Disclosed herein is an electric compressor. The electric compressor includes an inverter cover which is mounted to an outer surface of a compressor housing in which compression of refrigerant is implemented, and a printed circuit board which is disposed inside the inverter cover and mounted with a plurality of heat generating elements that come into surface contact with one surface of the compressor housing and perform heat transfer with low-temperature refrigerant supplied into the compressor housing.Type: GrantFiled: October 7, 2015Date of Patent: February 12, 2019Assignee: HANON SYSTEMSInventors: Il Young Park, Chan Ho Baek, Young Hun Lee
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Publication number: 20180205274Abstract: A rotor is for a permanent magnet embedded-type motor and a motor using the same. A rotor for a permanent magnet embedded-type motor includes a rotor core having a rotary shaft fixed to a center and having a plurality of magnet insertion holes formed to be spaced along a circumferential direction and a plurality of pairs of permanent magnets, respectively, inserted into each of the plurality of magnet insertion holes in a V-shape to be gradually spaced apart from each other toward a radially outer side. Each of the plurality of magnet insertion holes includes a pair of inner sides facing each other, and a barrier hole is formed to expand an inner space of each of the magnet insertion holes to protrude from the pair of inner sides, respectively.Type: ApplicationFiled: December 16, 2016Publication date: July 19, 2018Inventors: Jeong Gil Heo, Chan Ho Baek, Bong Kyun Seo
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Publication number: 20170214293Abstract: Disclosed herein is an electric compressor. The electric compressor includes an inverter cover which is mounted to an outer surface of a compressor housing in which compression of refrigerant is implemented, and a printed circuit board which is disposed inside the inverter cover and mounted with a plurality of heat generating elements that come into surface contact with one surface of the compressor housing and perform heat transfer with low-temperature refrigerant supplied into the compressor housing.Type: ApplicationFiled: October 7, 2015Publication date: July 27, 2017Inventors: Il Young Park, Chan Ho Baek, Young Hun Lee
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Publication number: 20160370038Abstract: An electric compressor and a method of controlling the same, the electric compressor including a detection unit for detecting a phase of refrigerant in the electric compressor, a connection unit wound at a position adjacent to a passage of a housing for movement of a refrigerant in the electric compressor, and a control unit for performing control according to the phase of refrigerant by differently controlling power applied to the connection unit in response to data detected by the detection unit. The method including aligning a position of a rotor after an electric compressor is turned on, determining whether a refrigerant is in liquid phase or in gas phase, preheating the refrigerant by applying power to the electric compressor according to the phase of refrigerant, and controlling the electric compressor such that the electric compressor is normally operated after the refrigerant is preheated.Type: ApplicationFiled: April 10, 2015Publication date: December 22, 2016Applicant: Hanon SystemsInventors: Jeong Gil Heo, Soo Cheol Jeong, Gun Woong Park, Chan Ho Baek, Jae Sik Son
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Patent number: 8836184Abstract: Disclosed is a motor-driven compressor for a vehicle adapted to fix a connector of an electric motor for a vehicle compressor. The compressor for a vehicle includes a rotor configured be rotated by an electromagnetic force generated when a current flow through a coil, a stator having at least one connector fixing slot, and a connector having a body fixed to the connector fixing slot.Type: GrantFiled: September 19, 2011Date of Patent: September 16, 2014Assignee: Halla Climate Control CorporationInventors: Seonk Kook Cho, Kyung Hun Jung, Kyung Seok Cho, Chan Ho Baek
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Patent number: 8664820Abstract: Disclosed is an electric motor-driven compressor having a structure capable of improving the performance of an electric motor of the electric motor-driven compressor for the vehicle. The electric motor-driven compressor has an angle which is formed by two straight lines passing through a center of the rotor and making contact with both end portions of one permanent magnet, and is in a range of about 48.7° to about 51°. The cogging torque and the torque ripples are minimized, the power of the electric motor is improved, and the electric motor is easily controlled.Type: GrantFiled: August 15, 2011Date of Patent: March 4, 2014Assignee: Halla Climate Control CorporationInventors: Seonk Kook Cho, Kyung Hun Jung, Kyung Seok Cho, Chan Ho Baek
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Publication number: 20120070322Abstract: Disclosed is an electric motor-driven compressor having a structure capable of improving the performance of an electric motor of the electric motor-driven compressor for the vehicle. The electric motor-driven compressor has an angle which is formed by two straight lines passing through a center of the rotor and making contact with both end portions of one permanent magnet, and is in a range of about 48.7° to about 51°. The cogging torque and the torque ripples are minimized, the power of the electric motor is improved, and the electric motor is easily controlled.Type: ApplicationFiled: August 15, 2011Publication date: March 22, 2012Applicant: HALLA CLIMATE CONTROL CORPORATIONInventors: SEONK KOOK CHO, KYUNG HUN JUNG, KYUNG SEOK CHO, CHAN HO BAEK
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Publication number: 20120070321Abstract: Disclosed is a motor-driven compressor for a vehicle adapted to fix a connector of an electric motor for a vehicle compressor. The compressor for a vehicle includes a rotor configured be rotated by an electromagnetic force generated when a current flow through a coil, a stator having at least one connector fixing slot, and a connector having a body fixed to the connector fixing slot.Type: ApplicationFiled: September 19, 2011Publication date: March 22, 2012Applicant: HALLA CLIMATE CONTROL CORPORATIONInventors: SEONK KOOK CHO, KYUNG HUN JUNG, KYUNG SEOK CHO, CHAN HO BAEK