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公开(公告)号：EP2843791A1
公开(公告)日：2015-03-04
申请号：EP13781453.9
申请日：2013-02-20
申请人： Yazaki Corporation
摘要： A protector for an electricity supply circuit includes: a power switch (11) capable to switch between connection and disconnection of the electricity supply circuit; a controller (12) configured to output a switching command signal to the power switch (11) in accordance with an input signal; and a current detector (11) for detecting current flowing to the electricity supply circuit. The controller (12) includes: a lower limit threshold determination unit (27) configured to determine whether or not an estimated temperature of a power line has dropped below a lower limit threshold; a timer (22) for counting the time that passes after a load (RL) has been turned off, when the load (RL) is turned off by the power switch (11); and a mode switching unit (23) configured to switch the controller (12) to a sleep mode when a predetermined time (Q1) is counted by the timer (22) and the lower limit threshold determination unit (27) determines that the estimated temperature of the power line has dropped below the lower limit threshold.
摘要翻译： 一种用于供电电路的保护器包括：能够在供电电路的连接和断开之间切换的电源开关（11） 控制器（12），被配置为根据输入信号向所述电源开关（11）输出开关命令信号; 和用于检测流向电源电路的电流的电流检测器（11）。 控制器（12）包括：下限阈值确定单元（27），被配置为确定电力线的估计温度是否下降到下限阈值以下; 计时器（22），用于在负载（RL）被电源开关（11）断开时，对负载（RL）关断后经过的时间进行计数; 以及模式切换部（23），其在由所述计时器（22）计数了规定时间（Q1）时，将所述控制部（12）切换为睡眠模式，所述下限阈值决定部（27）判断为所述推定温度 的电力线已经下降到低于下限阈值。
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公开(公告)号：EP2843783A1
公开(公告)日：2015-03-04
申请号：EP13781786.2
申请日：2013-02-20
申请人： Yazaki Corporation
CPC分类号： H02H3/0935 , H02H3/06 , H02H3/085 , H02H6/00
摘要： When a power switch (11) is turned off, a protection device for an electricity supply circuit starts keeping time using a timer (22) and turns on a disconnection flag. Then the protection device turns off the disconnection flag when the timer (22) has counted a predetermined time. When the power switch (11) is turned off, the disconnection flag does not subsequently turn off until the predetermined time (Q1) has passed. Therefore, it is possible to prevent an excessive temperature increase in the power switch (11) and prevent damage to the power switch (11).
摘要翻译： 当电源开关（11）断开时，用于供电电路的保护装置使用定时器（22）开始保持时间并打开断开标志。 然后，当定时器（22）计数了预定时间时，保护装置断开断开标志。 当电源开关（11）断开时，断开标志在预定时间（Q1）过去之前不会关闭。 因此，可以防止电源开关（11）过度升温并防止损坏电源开关（11）。
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公开(公告)号：EP2649693A1
公开(公告)日：2013-10-16
申请号：EP11813454.3
申请日：2011-11-29
申请人： Yazaki Corporation
摘要： A load circuit disconnection detector includes: a current sensor (16) for detecting current flowing through a wire (W1) of a load circuit; and a protective device (100) for estimating temperature of the wire (W1) based on the detected current and forcibly turning off a semiconductor switch (Q1) if the estimated temperature of the wire reaches threshold temperature. The load circuit disconnection detector determines that there is a connection failure in the load circuit if a temperature increase calculated by a temperature calculation unit (24) is zero even a predetermined time (P1) after the semiconductor switch (Q1) is turned on.
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公开(公告)号：EP2276135A1
公开(公告)日：2011-01-19
申请号：EP09731931.3
申请日：2009-04-15
申请人： Yazaki Corporation
摘要： A protection apparatus of a load circuit, comprises: a temperature estimation unit configured to estimate a temperature of an electric wire based on a pseudo-temperature arithmetic expression; and a breaking control unit configured to break a switch portion when the temperature estimated by the temperature estimation unit has reached an allowed temperature of the electric wire. The pseudo-temperature arithmetic expression is set in such a manner that, in a temperature arithmetic expression of the electric wire, the temperature arithmetic expression using the elapsed time counted by the timer, the current detected by the current detection unit, and a heat capacity and conductor resistance of the electric wire, a pseudo-heat capacity smaller than the heat capacity of the electric wire is assigned to the heat capacity, and a pseudo-conductor resistance larger than the conductor resistance of the electric wire is assigned to the conductor resistance.
摘要翻译： 一种负载电路的保护装置，包括：温度估计单元，被配置为基于伪温度运算表达式估计电线的温度; 以及断开控制单元，其被配置为当由所述温度估计单元估计出的温度达到所述电线的允许温度时断开开关部。 假温度运算表达式是这样设置的：在电线的温度运算表达式中，使用由计时器计数的经过时间，由电流检测单元检测的电流和热容量的温度运算表达式 电线的导体电阻，比电线的热容量小的假热容量分配给热容量，并且将比电线的导体电阻大的伪导体电阻分配给导体电阻 。
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公开(公告)号：EP3561825B1
公开(公告)日：2020-09-30
申请号：EP17884002.1
申请日：2017-10-12
申请人： Yazaki Corporation
发明人： CHIDA, Chiaki , MARUYAMA, Akinori
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公开(公告)号：EP2842210A1
公开(公告)日：2015-03-04
申请号：EP13722855.7
申请日：2013-04-05
申请人： Yazaki Corporation
IPC分类号： H02H5/04
摘要： A switching circuit protector switches a semiconductor device (11) provided in a switching circuit connecting a power supply (VB) to a load (RL), from a PWM drive state to a DC drive state when an estimated temperature of a cable of the switching circuit estimated by a temperature estimator (22) exceeds a threshold temperature (Tth), in the state where the semiconductor device (11) is controlled to operate in the PWM drive state to drive the load (RL). Therefore, when an overcurrent is caused in the cable, the estimated temperature exceeds the threshold temperature (Tth) so as to break the semiconductor device (11). Accordingly, the switching circuit can surely be protected by the switching circuit protector.
摘要翻译： 切换电路保护器将设置在将电源（VB）连接到负载（RL）的开关电路中的半导体器件（11）从PWM驱动状态切换到DC驱动状态，当切换的电缆的估计温度 在半导体器件（11）被控制为在PWM驱动状态下工作以驱动负载（RL）的状态下，由温度估计器（22）估计的电路超过阈值温度（Tth）。 因此，当在电缆中产生过电流时，估计温度超过阈值温度（Tth），从而破坏半导体器件（11）。 因此，开关电路确实可以被开关电路保护器保护。
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公开(公告)号：EP2649692A1
公开(公告)日：2013-10-16
申请号：EP11810698.8
申请日：2011-11-18
申请人： Yazaki Corporation
摘要： A load circuit protective device calculates increasing temperature of wire of a load circuit with a first predetermined sampling period (dt1) determined by a clock signal for normal operation when a semiconductor relay (Q1) is on to estimate the temperature of the wire. The temperature of the wire is therefore estimated with high accuracy. Moreover, when the semiconductor relay (Q1) is off, the load circuit protective device calculates decreasing temperature of the wire of the load circuit with a second predetermined sampling period (dt2) to estimate the temperature of the wire. The second predetermined sampling period (dt2) is determined by a clock signal for power-saving operation and is longer than the first predetermined sampling period (dt1). Accordingly, the calculation times of the temperature can be reduced, and the power consumption is therefore reduced.
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公开(公告)号：EP3623200A1
公开(公告)日：2020-03-18
申请号：EP19191619.6
申请日：2019-08-14
申请人： YAZAKI CORPORATION
发明人： MARUYAMA, Akinori
摘要： A bidirectional two-phase chopper circuit (50) boosts a voltage of direct-current power converted by an AC/DC converter (40) to output it to a high-voltage battery (20) and steps down a voltage of direct-current power being supplied to a low-voltage load unit (4) from the high-voltage battery (20). A connector (61) is connected to a quick charger (5) supplying direct-current power. A connector (62) is connected to a superquick charger (6) supplying direct-current power having a higher voltage than that of the quick charger (5).
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