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公开(公告)号：US11626724B2
公开(公告)日：2023-04-11
申请号：US17472757
申请日：2021-09-13
Applicant: DENSO ELECTRONICS CORPORATION
Inventor： Yukiko Matsubara , Kazunori Ozawa
Abstract: A load control device includes a power supply terminal connected to a power source via a fuse, a load driver configured to drive loads by electric power supplied from the power source via the fuse and the power supply terminal, a current detector configured to detect load currents that flow through the loads, respectively, and a controller. The controller is configured to calculate a total current that flows through the fuse based on the load currents detected by the current detector, calculate a physical quantity correlating with the total current and related to a connecting member that connects between the fuse and the power supply terminal in response to that the total current is equal to or higher than a predetermined current value, and limit at least one of the load currents in response to that the physical quantity is equal to or greater than a reference value.
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公开(公告)号：US11587752B2
公开(公告)日：2023-02-21
申请号：US16935781
申请日：2020-07-22
Applicant: DENSO ELECTRONICS CORPORATION
Inventor： Tomoko Ishikawa , Makoto Kamiya
Abstract: 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：US20230005689A1
公开(公告)日：2023-01-05
申请号：US17940499
申请日：2022-09-08
Applicant: DENSO CORPORATION , DENSO ELECTRONICS CORPORATION
Inventor： Jun KOMATSU , Hiroshi NAGURA , Naoki UEJIMA
Abstract: An electromagnetic relay device includes a mover, a plunger, and a solenoid unit that causes the plunger to reciprocate. The mover includes a movable contact movable to abut onto or separate from a stationary contact. The plunger causes the mover to reciprocate to accordingly cause the movable contact to abut onto or separate from the stationary contact. A heat-resistant member is interposed between the insulator and the mover. The plunger enables indirect abutment onto the mover through the insulator and the heat-resistant member. A heat-resistant temperature of the heat-resistant member is set to be higher than that of the insulator.
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公开(公告)号：US11458931B2
公开(公告)日：2022-10-04
申请号：US16872411
申请日：2020-05-12
Applicant: DENSO ELECTRONICS CORPORATION
Inventor： Manabu Morita , Shigekazu Sugimoto
IPC: B60S1/08 , H02P1/18 , B60R16/033 , H02J9/06 , H02P1/02
Abstract: When a power failure does not occur, power supply to a first terminal of a wiper motor is performed by a first battery, and power supply to a second terminal of the wiper motor is performed by a second battery. When a power failure occurs in one of the first battery or the second battery, power supply to the wiper motor is performed by the other battery that is not in power failure.
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公开(公告)号：US20220275557A1
公开(公告)日：2022-09-01
申请号：US17674916
申请日：2022-02-18
Applicant: DENSO ELECTRONICS CORPORATION
Inventor： Manabu MORITA
Abstract: A washer control device includes a computer configured to: monitor a motor current value that is a value of electric current supplied to a washer motor; acquire an energization time for which the electric current is supplied to the washer motor; and calculate a usage amount of a washer fluid from the motor current value and the energization time, and calculate, as a margin of the washer fluid, a remaining amount of the washer fluid in a washer tank based on the usage amount.
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Patent Agency Ranking
公开(公告)号：US11335525B2
公开(公告)日：2022-05-17
申请号：US16427795
申请日：2019-05-31
Applicant: DENSO ELECTRONICS CORPORATION
Inventor： Mitsugu Fujiwara , Makoto Kamiya
Abstract: An electromagnetic relay includes: a coil; a housing that supports the coil; a non-movable portion supported by the housing and including a fixed core and a fixed magnetic path defining member; and a movable portion provided to be reciprocally movable along a center axis line of the coil according to an energization state of the coil. The movable portion includes a movable core disposed to face the fixed core along the center axis line. The movable portion integrally has a flange portion protruding in a coil radial direction perpendicular to the center axis line to define a separation distance and/or a facing area in a magnetic gap between the fixed magnetic path defining member and the movable core by abutting against the non-movable portion.
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公开(公告)号：US11046246B2
公开(公告)日：2021-06-29
申请号：US16795407
申请日：2020-02-19
Applicant: DENSO ELECTRONICS CORPORATION
Inventor： Toshiaki Nakayama
Abstract: An alarm apparatus mounted on a vehicle is provided to output an alarm sound around the vehicle. The alarm apparatus generates a sound wave signal having a frequency that is hardly masked by an environmental sound, and outputs an alarm sound based on the sound wave signal.
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公开(公告)号：US11043346B2
公开(公告)日：2021-06-22
申请号：US16444260
申请日：2019-06-18
Applicant: DENSO ELECTRONICS CORPORATION
Inventor： Tomoko Ishikawa , Makoto Kamiya
Abstract: An electromagnetic relay includes a base frame including a main body supporting a fixed element, and a bottom plate having a plate thickness direction in an extending direction orthogonal to a central-axis line direction. An intermediate cover includes a covering plate facing a contact mechanism unit. An outer cover includes a top plate facing the bottom plate across the contact mechanism unit, and a first side plate extending from one end of the top plate and facing the covering plate. A first gap between the covering plate and the bottom plate in the extending direction and a second gap between the covering plate and the top plate in the extending direction are arranged to be substantially symmetric across the covering plate in the extending direction, the first gap and the second gap being on the first side plate.
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公开(公告)号：US20250095938A1
公开(公告)日：2025-03-20
申请号：US18965411
申请日：2024-12-02
Applicant: DENSO CORPORATION , DENSO ELECTRONICS CORPORATION
Inventor： Ryota KUNIYOSHI , Tomohiro YASUDA , Shingo KURITA , Takashi KAWASHIMA , Hiroshi NAGURA
Abstract: An electromagnetic relay includes a sealed housing, a fixed contact, a movable element having a movable contact, a shaft, a movable core, a fixed core, a return spring, an electromagnetic coil and a sleeve. The shaft is slidably inserted in a through-hole formed in the fixed core. The sleeve has a support part supporting the movable core so as to define a position of the movable core relative to the fixed core when no magnetic attraction acts therebetween. At a front end of the sleeve, there is formed a position adjustment part for adjusting a positional relationship between the fixed core and the support part during the direct or indirect fixing of the sleeve to the fixed core.
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公开(公告)号：US20230389196A1
公开(公告)日：2023-11-30
申请号：US18449535
申请日：2023-08-14
Applicant: DENSO ELECTRONICS CORPORATION
Inventor： Susumu MIYATA
CPC classification number: H05K5/0069 , H05K5/0217 , H05K5/0247 , H05K1/181
Abstract: An electric device includes an electric board having a board hole, a housing accommodating the electric board, a shaft portion disposed in the housing and inserted into the board hole, a recessed portion disposed in the housing, and a bonding portion. The bonding portion is interposed between the shaft portion and the recessed portion and between the recessed portion and a hole peripheral portion of the electric board that forms a peripheral edge of the board hole, and bonds the shaft portion, the hole peripheral portion, and the recessed portion. The board hole has a size such that a radial gap is provided between the hole peripheral portion of the electric board and the shaft portion.
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