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公开(公告)号：US20240204505A1
公开(公告)日：2024-06-20
申请号：US18522413
申请日：2023-11-29
发明人： Kotaro ASABA , Daisuke UEO , Nobutaka TANAKA , Junya MATSUSHITA , Yohei IMAI , Ryota TANABE
CPC分类号： H02H3/087 , H02H1/0007 , H02J7/00304 , H02J2310/48
摘要： An overcurrent protection device includes a first input terminal, a second input terminal, a first output terminal, a second output terminal, a breaker, a current sensor, and a comparator. A positive terminal and a negative terminal of a power source are connected to the first input terminal and the second input terminal. The second output terminal is connected to the second input terminal. The breaker includes a switch connected between the first input terminal and the first output terminal and opening upon reception of an interrupt command signal. The current sensor measures a difference between a current flowing between the first input terminal and the first output terminal, and a current flowing between the second input terminal and the second output terminal. The comparator sends the interrupt command signal to the breaker when a measurement value of the current sensor exceeds a first current threshold value.
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公开(公告)号：US20240047981A1
公开(公告)日：2024-02-08
申请号：US18211629
申请日：2023-06-20
发明人： Daisuke UEO , Ryota TANABE , Yohei IMAI
CPC分类号： H02J7/00308 , H02J7/0068 , H02M3/155
摘要： Disclosed herein is a power supply device and a control method for the power supply device. The power supply device includes: a battery; an external interface electrically connected to the battery and electrically attachable to or detachable from an external device; a voltage converter provided between the battery and the external interface; a low-voltage circuit that branches from an interface connection circuit connecting the external interface and the voltage converter and is connected to a low-voltage load having a rated voltage lower than a voltage of the battery; an interrupt circuit provided in the low-voltage circuit and configured to electrically interrupt the low-voltage circuit and the interface connection circuit; and an electronic control unit configured to control operations of the voltage converter and the interrupt circuit. The electronic control unit operates the interrupt circuit when a voltage of the interface connection circuit exceeds the rated voltage of the low-voltage load.
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公开(公告)号：US20210175771A1
公开(公告)日：2021-06-10
申请号：US17154697
申请日：2021-01-21
申请人： DENSO CORPORATION
发明人： Ryota TANABE , Yuta HASHIMOTO , Tomohisa SANO , Tomoyuki SHINKAI
摘要： A rotary electric machine unit including a rotary electric machine, and an electric power conversion device having a plurality of power modules. The rotary electric machine includes a stator, a rotor, and a housing. The housing includes a housing flow path through which a refrigerant flows. The power modules of the electric power conversion device and the rotary electric machine are configured to be cooled by the refrigerant.
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公开(公告)号：US20200176168A1
公开(公告)日：2020-06-04
申请号：US16784514
申请日：2020-02-07
申请人： DENSO CORPORATION
IPC分类号： H01F27/10 , H01F27/255 , H02M7/48 , H01F37/00
摘要： A reactor cooling structure includes: a plurality of reactors that are stacked on one another, each reactor including a coil configured to produce magnetic flux when energized; and a cooling mechanism that cools the plurality of reactors, wherein each of the reactors has an exterior member that has: heat radiation surfaces respectively on both sides of the corresponding one of the reactors in a stacking direction of the stacked reactors i.e. a first direction, the heat radiation surfaces of the exterior member of each of the reactors being arranged to cool the coil of the corresponding one of the reactors; the cooling mechanism includes a cooling flow path for directly cooling the first and second heat radiation surfaces of the exterior member of each of the reactors by a refrigerant.
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公开(公告)号：US20180109253A1
公开(公告)日：2018-04-19
申请号：US15784825
申请日：2017-10-16
申请人： DENSO CORPORATION
发明人： Ryota TANABE , Kazuya TAKEUCHI
摘要： An electric power conversion apparatus includes at least one semiconductor module, a capacitor, a pair of positive and negative busbars and an insulator. The positive busbar includes a positive busbar base protruding from the capacitor in a Y direction and at least one positive busbar terminal extending perpendicular to an X direction. The negative busbar includes a negative busbar base protruding from the capacitor in the Y direction and at least one negative busbar terminal extending perpendicular to the X direction. The positive and negative busbar bases are arranged to have their major surfaces facing each other in a Z direction. The positive and negative busbar terminals at least partially overlap each other in the X direction with the insulator interposed therebetween. The at least one semiconductor module has a pair of positive and negative power terminals connected respectively to the positive and negative busbar terminals.
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公开(公告)号：US20160157381A1
公开(公告)日：2016-06-02
申请号：US14919161
申请日：2015-10-21
申请人： DENSO CORPORATION
发明人： Kazuya TAKEUCHI , Makoto OKAMURA , Yuuichi HANDA , Naoki HIRASAWA , Hiromi ICHIJO , Ryota TANABE , Tetsuya MATSUOKA
CPC分类号： H05K7/20927 , H01G2/08 , H01G4/236 , H01G4/35 , H01G4/40 , H01L23/473 , H01L2023/4025 , H02M7/003 , Y02T10/7022
摘要： An electric power converter includes a semiconductor module constituting a power conversion circuit, a capacitor electrically connected to the semiconductor module, and a cooling member for cooling the capacitor. The capacitor includes an element body provided with internal electrode, and a pair of end-face-electrodes provided on both end faces of the element body and connected to the internal electrode. The pair of end-face-electrodes are connected with a pair of bus bars, respectively, in a manner of surface contact. The capacitor is disposed in a state where one of the pair of end-face-electrodes is facing the cooling member. The end-face-electrode facing the cooling member is in contact with the cooling member via the bus bar.
摘要翻译： 电力转换器包括构成功率转换电路的半导体模块，与半导体模块电连接的电容器和用于冷却电容器的冷却构件。 电容器包括设置有内部电极的元件本体和设置在元件体的两个端面上并连接到内部电极的一对端面电极。 一对端面电极分别与一对母线以表面接触的方式连接。 电容器设置在一对端面电极中的一个面对冷却部件的状态。 面向冷却部件的端面电极经由母线与冷却部件接触。
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公开(公告)号：US20200262119A1
公开(公告)日：2020-08-20
申请号：US16866293
申请日：2020-05-04
申请人： DENSO CORPORATION
发明人： Akifumi KURITA , Yohei YOSHIMURA , Ryota TANABE
摘要： A conductive member module has a pair of conductive members formed in a plate shape and facing each other, and a sealing part for sealing the pair of conductive members. The conductive member module is produced by performing an accommodation step, a sealing step, and an extraction step. In the sealing step, the conductive members are sealed with a resin injected into a die while a force is applied by the resin to the individual conductive members in directions to approach each other in a facing orientation of the pair of conductive members.
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公开(公告)号：US20200262114A1
公开(公告)日：2020-08-20
申请号：US16866373
申请日：2020-05-04
申请人： DENSO CORPORATION
发明人： Akifumi KURITA , Yohei YOSHIMURA , Ryota TANABE
IPC分类号： B29C45/14
摘要： A conductive member module has a pair of conductive members formed in a plate shape and facing each other, and a sealing part. The conductive member module is produced by performing an accommodation step, a sealing step, and an extraction step. In the accommodation step, the two individual conductive members are sandwiched in the facing orientation thereof by outer support members abutting outer surfaces of the conductive members, and inner support members abutting inner surfaces of the conductive members. Outer recesses are formed in the outer surfaces by the outer support members, and inner recesses are formed in the inner surfaces by the inner support members. The outer recesses are deeper in the Z direction than the inner recesses.
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公开(公告)号：US20200177093A1
公开(公告)日：2020-06-04
申请号：US16782158
申请日：2020-02-05
申请人： DENSO CORPORATION
IPC分类号： H02M7/00 , H01L25/18 , H02M7/5387 , H01L23/473
摘要： A power conversion apparatus has a positive electrode bus bar and a negative electrode bus bar. The power conversion apparatus has a first semiconductor module incorporating an upper-arm switching element and including a positive electrode terminal and a second semiconductor module incorporating a lower-arm switching element and including a negative electrode terminal. The first semiconductor module and the second semiconductor module are placed such that the positive electrode terminal and the negative electrode terminal face each other in a direction orthogonal to a protruding direction. The positive electrode bus bar and the negative electrode bus bar respectively have coexisting parts placed together between the positive electrode terminal and the negative electrode terminal as seen in the protruding direction of power terminals. The coexisting parts are at least partially placed in a space between the positive electrode terminal and the negative electrode terminal.
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公开(公告)号：US20210175780A1
公开(公告)日：2021-06-10
申请号：US17156903
申请日：2021-01-25
申请人： DENSO CORPORATION
发明人： Tomohisa SANO , Yuki TAKAHASHI , Ryota TANABE , Yuta HASHIMOTO , Wataru FUNATSU , Norihiro HAYASHI
摘要： A rotating electric machine includes: a field element that includes a magnet portion that includes a plurality of magnetic poles; an armature that includes an armature winding of multiple phases; and a power converter that is electrically connected to the armature winding.
The rotating electric machine also includes: a plurality of electrical components that configure the power converter; and a housing member that includes a cylindrical portion that is provided on a radially inner side of a magnetic circuit portion that includes the magnet portion and the armature winding, and to which the plurality of electrical components are disposed. The cylindrical portion is provided with a coolant passage through which a coolant flows. The plurality of electrical components are arranged in the housing member on a radially inner side of the cylindrical portion, in a circumferential direction along the cylindrical portion.
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