Patents by Inventor Yeon Soon Choi

Yeon Soon Choi 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).

  • Patent number: 9460877
    Abstract: An electromagnetic switching device is provided that includes a junction box having an accommodating space formed to be one side open by side plates and a bottom plate and a relay having fixed contacts and movable contacts within a casing and detachable to and from the accommodating space, where the junction box includes a pair of protrusions that protrude from the side plates to an opposite side to the accommodating space, the relay includes a lever hinge-coupled to the casing and engaged by the pair of protrusions and the lever is configured to press the relay toward the bottom plate when rotating in one direction and to press the relay away from the bottom plate when rotating in an opposite direction, thereby enabling the relay to be easily detachable from the junction box.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 4, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Tae Woon Ahn, Yeon Soon Choi
  • Patent number: 9431200
    Abstract: An electromagnetic relay includes a housing, a fixed contact provided within the housing, a movable contact movable to contact or be separated from the fixed contact, and a driving unit configured to drive the movable contact to be in contact with or separated from the fixed contact, and including a coil, a yoke disposed within the coil and having an inner section for forming a magnetic path inside and outside of the coil, a movable core disposed within the coil to be attractable by the inner section, and a shaft having one end connected to the movable core and another end connected to the movable contact, capable of facilitating an assembling process of a shaft and a movable core by eliminating a welding process.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: August 30, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Yeon Soon Choi
  • Publication number: 20150213981
    Abstract: An electromagnetic relay includes a housing, a fixed contact provided within the housing, a movable contact movable to contact or be separated from the fixed contact, and a driving unit configured to drive the movable contact to be in contact with or separated from the fixed contact, and including a coil, a yoke disposed within the coil and having an inner section for forming a magnetic path inside and outside of the coil, a movable core disposed within the coil to be attractable by the inner section, and a shaft having one end connected to the movable core and another end connected to the movable contact, capable of facilitating an assembling process of a shaft and a movable core by eliminating a welding process.
    Type: Application
    Filed: October 14, 2014
    Publication date: July 30, 2015
    Applicant: LSIS CO., LTD.
    Inventor: Yeon Soon CHOI
  • Publication number: 20150187522
    Abstract: Disclosed is an electromagnetic switching device, including: a junction box having an accommodating space formed to be one side open by side plates and a bottom plate; and a relay having fixed contacts and movable contacts within an casing and detachable to and/or from the accommodating space, wherein the junction box includes a pair of protrusions which are protruded from the side plates to an opposite side to the accommodating space; wherein the relay includes a lever which is hinge-coupled to the casing and caught by the pair of protrusions; and wherein the lever is configured to press the relay toward the bottom plate when rotating in one direction, and to press the relay toward a direction to become distant from the bottom plate when rotating in opposite direction, thereby enabling the relay to be easily detachable from the junction box.
    Type: Application
    Filed: December 12, 2014
    Publication date: July 2, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Tae Woon AHN, Yeon Soon CHOI
  • Patent number: 8766750
    Abstract: In an electromagnetic switching apparatus, a fixed core is fixedly-installed at a lower side, and a movable core driven by an electromagnetic force is installed at an upper side so as to be directly connected to a movable contact. This may require no shaft, and thus simplify the entire structure.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: July 1, 2014
    Assignee: LSIS Co., Ltd.
    Inventor: Yeon Soon Choi
  • Patent number: 8729986
    Abstract: An electromagnetic switching device includes: a housing; first contacts coupled to the housing; a second contact which is brought into contact with the first contacts and separated from the first contacts; and an actuator for driving the second contact such that the second contact is brought into contact with the first contacts and separated from the first contacts, wherein any one of the first contacts and the second contact includes an elastic deformation portion elastically deformed when the first contacts and the second contact are brought into contact. Vibration and noise generated when contacts are brought into contact can be suppressed.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: May 20, 2014
    Assignee: LSIS Co., Ltd.
    Inventor: Yeon Soon Choi
  • Patent number: 8558648
    Abstract: Disclosed is an electromagnetic switching apparatus capable of reducing noise occurring when a movable contact comes in contact with or is separated from a fixed contact, and capable of enhancing a function to extinguish arcs. The electromagnetic switching apparatus includes a fixed terminal fixed in a manner to penetrate through a housing, a fixed contact configured to approach to or to be separated from the fixed terminal, an elastic member fixed between the fixed terminal and the fixed contact, and providing an elastic force to a direction to separate the fixed contact from the fixed terminal, a movable contact configured to contact or to be separated from the fixed terminal, and a moving unit configured to move the movable contact so as to contact or to be separated from the fixed contact.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: October 15, 2013
    Assignee: LSIS Co., Ltd.
    Inventor: Yeon Soon Choi
  • Patent number: 8269585
    Abstract: An electromagnetic switch includes: a stationary contact; a movable contact movably provided with respect to the stationary contact; a coil configured to move the movable contact to a side of the stationary contact by means of current conduction; and a shaft provided inside the coil such that the movable contact is provided at an end portion thereof, wherein a snap-fit portion having a pair of hooks disposed to face each other is provided at an end portion of the shaft, and the movable contact is fixed between the end portion of the shaft and the hook.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: September 18, 2012
    Assignee: LSIS Co., Ltd.
    Inventor: Yeon Soon Choi
  • Publication number: 20120092096
    Abstract: An electromagnetic switching device includes: a housing; first contacts coupled to the housing; a second contact which is brought into contact with the first contacts and separated from the first contacts; and an actuator for driving the second contact such that the second contact is brought into contact with the first contacts and separated from the first contacts, wherein any one of the first contacts and the second contact includes an elastic deformation portion elastically deformed when the first contacts and the second contact are brought into contact. Vibration and noise generated when contacts are brought into contact can be suppressed.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 19, 2012
    Inventor: Yeon Soon CHOI
  • Publication number: 20120092098
    Abstract: In an electromagnetic switching apparatus, a fixed core is fixedly-installed at a lower side, and a movable core driven by an electromagnetic force is installed at an upper side so as to be directly connected to a movable contact. This may require no shaft, and thus simplify the entire structure.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 19, 2012
    Inventor: Yeon Soon CHOI
  • Publication number: 20120092097
    Abstract: An electromagnetic switch includes: a stationary contact; a movable contact movably provided with respect to the stationary contact; a coil configured to move the movable contact to a side of the stationary contact by means of current conduction; and a shaft provided inside the coil such that the movable contact is provided at an end portion thereof, wherein a snap-fit portion having a pair of hooks disposed to face each other is provided at an end portion of the shaft, and the movable contact is fixed between the end portion of the shaft and the hook.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 19, 2012
    Inventor: Yeon Soon CHOI
  • Publication number: 20120092100
    Abstract: Disclosed is an electromagnetic switching apparatus capable of reducing noise occurring when a movable contact comes in contact with or is separated from a fixed contact, and capable of enhancing a function to extinguish arcs. The electromagnetic switching apparatus includes a fixed terminal fixed in a manner to penetrate through a housing, a fixed contact configured to approach to or to be separated from the fixed terminal, an elastic member fixed between the fixed terminal and the fixed contact, and providing an elastic force to a direction to separate the fixed contact from the fixed terminal, a movable contact configured to contact or to be separated from the fixed terminal, and a moving unit configured to move the movable contact so as to contact or to be separated from the fixed contact.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 19, 2012
    Inventor: Yeon Soon CHOI