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公开(公告)号：US10856086B2
公开(公告)日：2020-12-01
申请号：US16499553
申请日：2018-03-29
发明人： Masahide Tamura , Tadao Sunahara , Koji Hamada , Ryuta Suzuki
摘要： A piezoelectric sounding element includes a diaphragm made of metal and a piezoelectric element provided on at least one surface of the diaphragm. A non-fixed portion of the diaphragm includes the pair of long sides facing each other, a pair of short sides, shorter than the long sides, that face each other, and a pair of recesses, provided in the pair of long sides, that protrude so as to approach each other. The piezoelectric element is provided in a region between the pair of recesses of the diaphragm and the contour shapes of the non-fixed portion of the diaphragm and the piezoelectric element are defined so as to be symmetric with respect to a first imaginary line that bisects the pair of short sides and symmetric with respect to a second imaginary line that bisects the pair of long sides.
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公开(公告)号：US20200350134A1
公开(公告)日：2020-11-05
申请号：US16935781
申请日：2020-07-22
申请人： ANDEN CO., LTD.
发明人： Tomoko ISHIKAWA , Makoto KAMIYA
摘要： An electromagnetic relay includes a movable element, a movable yoke, a fixed yoke, a movable section, and a stopper. The movable element includes a movable contact point. The movable yoke is connected to the movable element to move together with the movable element. The movable section includes a movable core made of an inorganic magnetic material and a shaft made of an inorganic material. The fixed yoke is made of an inorganic magnetic material and disposed between the movable core and the movable yoke. The stopper protrudes from either one of the fixed yoke or the movable section toward the other to contact with the other when the movable section moves toward the fixed yoke. The stopper is integrally formed with the either one of the fixed yoke or the movable section.
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公开(公告)号：US20190295796A1
公开(公告)日：2019-09-26
申请号：US16360071
申请日：2019-03-21
申请人： ANDEN CO., LTD. , DENSO CORPORATION
IPC分类号： H01H50/54
摘要： An electromagnetic relay includes: an exciting coil; a movable core driven by the exciting coil; a movable contactor having a first movable contact and a second movable contact to operate with the movable core; a first fixed terminal having a first fixed contact with which the first movable contact abuts when the movable contactor is moved by energizing the exciting coil; and a second fixed terminal having a second fixed contact with which the second movable contact abuts when the movable contactor is moved by energizing the exciting coil. An inclination angle of a central axis of the first movable contact with respect to a central axis of the first fixed contact and an inclination angle of a central axis of the second movable contact with respect to a central axis of the second fixed contact are inclined in opposite directions from each other.
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公开(公告)号：US10363868B2
公开(公告)日：2019-07-30
申请号：US16060992
申请日：2016-11-22
申请人： ANDEN CO., LTD.
发明人： Chikara Yamamoto , Kazushi Yokota
IPC分类号： B60Q5/00 , H04R3/00 , B60R16/023 , H04R3/04 , H04R29/00
摘要： A vehicle approach notification device includes a speaker disposed between push-pull circuits. The push-pull circuits amplify power of a notification sound signal by their push-pull outputs, and output the amplified notification sound signal to the speaker so that the speaker emits a notification sound for notification of an approach of a vehicle. When the push-pull outputs of the push-pull circuits are stopped, and the microcomputer outputs a high-level signal between a common connection terminal and ground, the microcomputer determines that there is a wire-discontinuity failure in the speaker when a voltage between common connection terminals is equal to or higher than a predetermined value.
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公开(公告)号：US20190165564A1
公开(公告)日：2019-05-30
申请号：US16106650
申请日：2018-08-21
申请人： ANDEN CO., LTD.
发明人： Tomokatsu FUSEYA , Naoyuki YASUDA , Manabu MORITA
摘要： An overcurrent protection device is to be provided between a power supply and a load circuit including an electric load and an electric wire electrically connected with each other, and includes a switching element, a current detector, a characteristic estimation portion, and a controller. The switching element switches flowing and interrupting of a load current that flows from the power supply to the electric load. The current detector detects the load current. The characteristic estimation portion estimates a thermal characteristic of the electric wire based on the load current detected by the current detector. The controller outputs an overcurrent protection signal for interrupting the load current so as to protect the load circuit from an overcurrent to the switching element based on the thermal characteristic estimated by the characteristic estimation portion and the load current detected by the current detector.
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公开(公告)号：US10261532B1
公开(公告)日：2019-04-16
申请号：US16106742
申请日：2018-08-21
申请人： ANDEN CO., LTD.
发明人： Naoyuki Yasuda , Tomokatsu Fuseya , Manabu Morita
摘要： A load drive circuit is configured to control driving of an electric load that is a direct current load, and includes a controller, a switching element, and a current detection portion. The controller generates and outputs a control signal for controlling a flowing state of a load current that flows to the electric load. The switching element switches flowing and interrupting of the load current based on the control signal. The current detection portion detects the load current. The controller includes a type determination portion and a control signal output portion. The type determination portion determines a type of the electric load based on the load current detected by the current detection portion. The control signal output portion generates and outputs the control signal based on the type determined by the type determination portion.
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公开(公告)号：US10242787B2
公开(公告)日：2019-03-26
申请号：US15358766
申请日：2016-11-22
发明人： Ken Tanaka , Shota Iguchi , Tomoaki Tanaka
摘要： A solenoid device includes two electromagnetic coils, two stationary cores, two plungers and a yoke that surrounds the two electromagnetic coils. When a first electromagnetic coil is energized, magnetic flux flows through a first magnetic circuit that includes the first stationary core. When the two electromagnetic coils are energized, magnetic flux of the first electromagnetic coil flows through the first magnetic circuit, and magnetic flux of the second electromagnetic coil flows through a second magnetic circuit that includes a second stationary core. When energization of the first electromagnetic coil is stopped while maintaining energization of the second electromagnetic coil, the magnetic flux of the second electromagnetic coil continues to flow through the second magnetic circuit and a third magnetic circuit that includes the two stationary cores. A magnetism limiting portion is disposed in a portion of the second magnetic circuit that does not overlap the third magnetic circuit.
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48.发明授权公开(公告)号：US10141145B2
公开(公告)日：2018-11-27
申请号：US15087318
申请日：2016-03-31
发明人： Ken Tanaka , Shota Iguchi
摘要： A relay apparatus incorporates at least first and second relays having respective first and second electromagnetic coils, with a single yoke partially surrounding each of the coils. When current is passed through only the first electromagnetic coil, to activate the first relay, resultant magnetic flux acting on the armature of the second relay is attenuated by passing a current through the second electromagnetic coil to produce opposing-direction magnetic flux. When current is passed in the opposite direction through the second coil, to activate the second relay, the magnetic fluxes produced by the first and second electromagnetic coils become mutually reinforced, thereby reducing the power consumption required to activate both of the relays and to maintain that activated state.
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公开(公告)号：US20180145581A1
公开(公告)日：2018-05-24
申请号：US15807757
申请日：2017-11-09
申请人： ANDEN CO., LTD.
发明人： Koichi WATANABE
摘要： An overcurrent protection apparatus that protects, from overcurrent, a load drive system including a load circuit having an electric load and a semiconductor switch electrically connected to the load circuit so as to control a drive of the load circuit is provided. The overcurrent protection apparatus includes: an energization state acquisition part that is configured to acquire an energization state of load current flowing through the semiconductor switch and the load circuit when the semiconductor switch is ON; a change part that is configured to change an acquisition condition of the energization state at the energization state acquisition part in accordance with a driving state of the load circuit; and a protection operator that is configured to execute overcurrent protective operation of protecting the load drive system from the overcurrent based on the energization state acquired by the energization state acquisition part.
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公开(公告)号：US09960001B2
公开(公告)日：2018-05-01
申请号：US15045805
申请日：2016-02-17
发明人： Ken Tanaka , Shota Iguchi , Tomoaki Tanaka
CPC分类号： H01H47/325 , H01H9/541 , H01H9/542 , H01H47/002 , H01H50/546 , H01H51/20 , H02H9/001
摘要： A relay system is provided which is designed to avoid flow of inrush current through a capacitor in a pre-charge mode wherein the capacitor is pre-charged. The relay system includes a pair of power lines, a capacitor, a series-connected assembly, a control circuit, and a relay module. The relay module includes two main switches, a main coil, and a sub-coil. In the pre-charge mode, the control circuit energizes both the main and sub-coils to turn on only one of the main switches. Before entering the pre-charge mode, the control circuit diagnoses the sub-coil. When the sub-coil is determined as being malfunctioning, the control circuit inhibits the pre-charge mode from being entered.
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