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    • 7. 发明申请
    • ELECTROMAGNETIC CONTACTOR
    • 电磁接触器
    • US20130106543A1
    • 2013-05-02
    • US13664580
    • 2012-10-31
    • Masaru ISOZAKIOsamu KASHIMURAHiroyuki TACHIKAWAKouetsu TAKAYAYasuhiro NAKAYuji SHIBA
    • Masaru ISOZAKIOsamu KASHIMURAHiroyuki TACHIKAWAKouetsu TAKAYAYasuhiro NAKAYuji SHIBA
    • H01H9/44
    • H01H9/443H01H50/14H01H50/22H01H50/546H01H51/065H01H51/2209H01H2050/025
    • An electromagnetic contactor has a contact device including a contact housing for housing a pair of fixed contact pieces and a movable contact piece disposed to contact with and separate away from the pair of fixed contact pieces, a pair of arc-extinguishing inner permanent magnets disposed on inner peripheral surfaces of the contact housing, and a pair of arc-extinguishing outer permanent magnets disposed on outer peripheral surfaces of the contact housing at a section facing the arc-extinguishing inner permanent magnets. Magnetic pole surfaces of the arc-extinguishing inner permanent magnets are arranged in a close vicinity of the movable contact piece and are magnetized to have the same polarity facing each other. The arc-extinguishing outer permanent magnets are magnetized in the same direction as the arc-extinguishing inner permanent magnets disposed nearby and coercive force of the arc-extinguishing outer permanent magnets is greater than of that the arc-extinguishing inner permanent magnets.
    • 一种电磁接触器具有接触装置,该接触装置包括用于容纳一对固定接触片的接触壳体和与一对固定接触件接触和分离的可动接触片,一对灭弧内部永磁体, 所述接触壳体的内周面和一对灭弧外部永磁体,其在与所述灭弧内部永磁体相对的一侧设置在所述接触壳体的外周面上。 灭弧的内部永磁体的磁极表面布置在可动接触片的紧密附近,并被磁化以具有彼此面对的相同极性。 灭弧外部永久磁铁沿与设置在附近的灭弧内置永久磁铁相同的方向被磁化,灭弧外部永磁体的矫顽力大于灭弧内部永久磁铁的矫顽力。
    • 8. 发明申请
    • ELECTROMAGNETIC CONTRACTOR
    • 电磁承包商
    • US20120175345A1
    • 2012-07-12
    • US13344223
    • 2012-01-05
    • Hiroyuki TACHIKAWAMasaru ISOZAKIOsamu KASHIMURAKouetsu TAKAYAYasuhiro NAKAYuji SHIBA
    • Hiroyuki TACHIKAWAMasaru ISOZAKIOsamu KASHIMURAKouetsu TAKAYAYasuhiro NAKAYuji SHIBA
    • H01H33/18
    • H01H9/443H01H50/546
    • An electromagnetic contactor includes a first stationary contact having a stationary contact portion and a stationary terminal portion for connecting to a power supply; a second stationary contact having a stationary contact portion and a stationary terminal section for connecting to a load; a stationary-contact supporting case supporting the stationary terminal portions of the first and second stationary contacts to protrude the contact support casing, and maintaining a predetermined distance in between; a moving-contact portion contactable to and separable from the stationary contact portion of the first and second stationary contact and arranged in the stationary-contact supporting case; and a pair of arc-extinguishing magnets arranged in parallel to sandwich the moving-contact portion in the longitudinal direction and having same magnetic polarity at opposing magnetic pole surfaces. A driving mechanism drives the moving-contact portion contactable to and separable from the stationary contact portions of the first and second stationary contacts.
    • 电磁接触器包括具有固定接触部分和用于连接到电源的固定端子部分的第一固定触头; 具有固定接触部分和用于连接到负载的固定端子部分的第二固定触头; 固定接触支撑壳体,其支撑所述第一固定触头和所述第二固定触头的固定端子部分以使所述触点支撑壳体突出,并且在其间保持预定的距离; 可移动接触部分,其可接触并分离于第一和第二固定接触件的固定接触部分并且布置在固定接触支撑壳体中; 以及一对平行排列的灭弧磁体,以在纵向方向上夹持活动接触部分,并且在相对的磁极表面具有相同的磁极性。 驱动机构驱动与第一和第二静止触点的固定接触部分可接触并可分离的移动接触部分。