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1. 发明公开

CN105914711A 一种断电保护电路无效
公开(公告)号：CN105914711A
公开(公告)日：2016-08-31
申请号：CN201610453066.5
申请日：2016-06-21
申请人：浙江金美电动工具有限公司
发明人：高金云 , 丰志明
IPC分类号： H02H7/08 , H02H3/24
CPC分类号： H02H7/08 , H02H3/24 , H02H7/0859
摘要：本发明属于涉及一种断电保护电路，其包括交流电输入端、整流降压电路、自锁电路、可控硅触发电路、可控硅、主控开关、第一负载输入端和第二负载输入端；所述的可控硅的阴极连接交流电输入端的N极，交流电输入端的L极通过主控开关连接第一负载输入端，可控硅的阳极连接第二负载输入端；所述的整流降压电路与交流电输入端连接，整流降压电路分别与自锁电路和可控硅触发电路连接；所述的可控硅触发电路用于为可控硅提供导通的触发电压信号；所述自锁电路用于为可控硅触发电路提供导通的触发电压信号。本发明的有益效果在于：采用了由主开关和辅助开关组成的联动开关，以及采用了自锁电路，保证了断电保护电路的稳定可靠运行。

2. 发明公开

CN106887824A 斜槽风机防自启保护装置无效
公开(公告)号：CN106887824A
公开(公告)日：2017-06-23
申请号：CN201510956163.1
申请日：2015-12-16
申请人：天津渤天化工有限责任公司
发明人：刘凯 , 李绍奎 , 李维忠 , 马跃军
IPC分类号： H02H7/085
CPC分类号： H02H7/0859
摘要：一种斜槽风机防自启保护装置，用于锅炉除尘系统中，对电机的防护。包括灰仓，灰仓与下料管之间通过给料机相连接，灰仓顶部与给料机之间设有送风管，送风管通过与其连接的斜槽风机送风，所述的斜槽风机与自控保护装置相连接，并由自控保护装置控制运行。其有益效果是：当斜槽风机因为堵灰等原因跳闸之后无法自动恢复，不能自动重新启动，并有保护信号，使得运行人员可以得知电机状态，从而对吹灰管路进行清理后再复位保护装置，大大降低电机的烧毁频率，降低了生产成本，保证了吹灰质量。

3. 发明公开

CN105811372A 一种电机保护电路及基于该电路校准最优死区时间的方法有权
公开(公告)号：CN105811372A
公开(公告)日：2016-07-27
申请号：CN201610203616.8
申请日：2016-03-31
申请人：广东美的环境电器制造有限公司 , 美的集团股份有限公司
发明人：郭新生 , 刘锦泉
IPC分类号： H02H7/085
CPC分类号： H02H7/0859 , H02H7/0854
摘要：本发明涉及一种电机保护电路及基于该电路校准最优死区时间的方法，所述电路包括：感性电流泄放开关电路,并联在单相交流电机或其主副绕组的两端；单相交流电开关电路,与单相交流电机或其主副绕组串联；脉冲控制电路，与感性电流泄放开关电路、单相交流电开关电路和滤波采样电路均相连，用于产生死区时间为预设死区时间的两路对称脉冲信号，并分别输入至感性电流泄放开关电路和单相交流电开关电路，然后采集滤波采样电路上的采样电流，根据采样电流计算得到最优死区时间；滤波采样电路还与单相交流电开关电路相连，用于产生采样电流。本发明通过采样电流的变化智能化计算出最优死区时间，提高电机保护电路的可靠性。

4. 发明授权

US4542324A Overtemperature speed control for a variable speed drive 失效
标题翻译：变速驱动器的过温度控制
公开(公告)号：US4542324A
公开(公告)日：1985-09-17
申请号：US451368
申请日：1982-12-20
申请人： John M. Leuthen
发明人： John M. Leuthen
IPC分类号： H02H7/085 , H02P23/10 , H02P5/40
CPC分类号： H02P23/10 , H02H7/0859
摘要： A variable speed drive for an AC motor has features to reduce the speed of the motor if excess temperature is encountered in the variable speed drive system. The system has a rectifier that converts AC supply voltage into DC voltage on the positive and negative rails. Frequency switches switch the DC voltage to power conductors in a sequence and at a rate to determine the selected frequency. The frequency switches are controlled by a DC demand voltage. A temperature sensor provides an electrical response corresponding to the temperature in the system. The temperature response is compared to a reference voltage, and if it exceeds the reference voltage, the comparator provides an output that draws down the demand voltage by a value corresponding to the difference. Lowering the demand voltage lowers the speed of the motor to allow the system to cool under reduced load conditions.
摘要翻译：用于交流电动机的变速驱动器具有在变速驱动系统中遇到过温度时降低电动机的速度的特征。该系统具有将AC电源电压转换为正极和负极轨道上的直流电压的整流器。频率开关将直流电压按顺序和速率切换到电源导线，以确定选定的频率。频率开关由直流需求电压控制。温度传感器提供对应于系统中的温度的电响应。将温度响应与参考电压进行比较，如果超过参考电压，则比较器提供一个输出，该输出将需求电压降低一个对应于差值的值。降低需求电压会降低电机的转速，从而使系统在降低负载条件下进行冷却。

5. 发明授权

US4452292A Automatic door opener 失效
标题翻译：自动开门机
公开(公告)号：US4452292A
公开(公告)日：1984-06-05
申请号：US490988
申请日：1983-05-10
申请人： Simon Leivenzon , Zvi Leivenzon
发明人： Simon Leivenzon , Zvi Leivenzon
IPC分类号： E05F15/00 , E05F15/10 , E06B9/70 , E06B9/80 , E06B9/86 , H02H7/085 , E06B9/204
CPC分类号： H02H7/0859 , E06B9/70 , E06B9/86 , E05F15/41 , E05F15/603 , E05Y2201/214 , E05Y2201/244 , E05Y2201/726 , E05Y2400/554 , E05Y2900/00 , E05Y2900/106 , E06B2009/6854 , E06B2009/6881 , E06B2009/805
摘要： A door is provided having an automatic opening means for the door and a key locking facility for mechanically locking the door in a door closed position and electric circuit means connected with the motor means to sense a change in the electrical operating conditions of the motor above that which is normal for operation of the motor and to remove the above normal power thereby supplied to the motor in such circumstances.The sensing means preferably comprises a means which switches off the power once the electrical operating conditions are sensed above that which is normal and whereby it returns the power some time later and should the motor then reexperience electrical operating conditions above that which is normal the sensing means will again switch off the power to the motor.The sensing means desirably comprise a bimetallic cut out switch means.
摘要翻译：门具有用于门的自动开启装置和用于将门机械地锁定在门关闭位置的钥匙锁定装置，以及与电动机装置连接的电路装置，用于感测电动机的电动操作条件的变化，这在电动机的操作中是正常的，并且在这种情况下去除上述正常功率从而提供给电动机。感测装置优选地包括一旦在电动操作条件被检测到高于正常值并且由此在稍后一段时间返回电力之后关闭电力的装置，并且如果电动机然后再经验电气操作条件超过感测装置正常的电气操作条件将再次关闭电机的电源。感测装置理想地包括双金属切断开关装置。

6. 发明授权

US4933800A Motor overload detection with predetermined rotation reversal 失效
标题翻译：电机过载检测，预定旋转反转
公开(公告)号：US4933800A
公开(公告)日：1990-06-12
申请号：US354453
申请日：1989-05-19
申请人： Tai-Her Yang
发明人： Tai-Her Yang
IPC分类号： G05B19/4062 , H02H7/085
CPC分类号： H02H7/0859 , G05B19/4062
摘要： An apparatus is provided for controlling an electric motor that is doing some sort of work, whereby the apparatus automatically senses the presence of a work overload. Once the work overload is sensed, the apparatus automatically reverses the direction of rotation of the motor to eliminate the work overload. The reversed rotation is limited to either a predetermined period of time or to a predetermined number of reverse rotations. Once the predetermined limit of reverse rotation is reached, the apparatus automatically resumes normal rotation of the motor.
摘要翻译：提供了一种用于控制正在进行某种工作的电动机的装置，由此该装置自动检测工作过载的存在。一旦感测到工作过载，设备将自动反转电机的旋转方向，以消除工作过载。反转被限制在预定时间段或预定数量的反向旋转。一旦达到预定的反转极限，装置就自动地恢复电动机的正常旋转。

7. 发明授权

US4494162A Starter thermal overload protection system 失效
标题翻译：起动机热过载保护系统
公开(公告)号：US4494162A
公开(公告)日：1985-01-15
申请号：US316640
申请日：1981-10-30
申请人： Francis R. Eyler
发明人： Francis R. Eyler
IPC分类号： H02H3/087 , H02H7/085 , H02H5/04
CPC分类号： F02N11/10 , H02H3/087 , H02H7/0859
摘要： A system for protecting the starter of an internal combustion engine from overheating as a result of cranking for an excessive period of time when the engine is difficult to start. Override circuitry is electrically interposed between a manually operable starter switch and the engine starter to apply a prescribed ON and OFF cranking sequence to the starter and thereby limit the duty cycle even though the operator continuously operates the switch. Preferably, the overall maximum duration of the start attempt (the duration of the ON and OFF cranking sequence) is limited by termination circuitry. The ON and OFF cranking intervals and, optionally, the overall maximum duration of the start attempt are particularly selected so as to allow sufficient time for motor winding heat to dissipate into the starter housing. This limited cranking duty cycle protects the starter from overheating. Also, when employed in combination with a thermostatic switch mounted on the starter housing and arranged to prevent starter energization when a predetermined temperature is reached, the limited starter ON time and intermediate resting periods permit the housing and the thermostatic switch to more closely follow winding temperature. As a further aspect, in order to maintain optimum operation of the protection system as starter load conditions vary, starter current is sensed and the starter ON/OFF duty cycle is appropriately modified in response.
摘要翻译：一种用于在发动机难以启动时由于起动一段时间而保护内燃机的起动器免于过热的系统。覆盖电路电连接在可手动启动的起动开关和发动机起动器之间，以便对起动器施加规定的开启和关闭起动顺序，从而即使操作者连续地操作开关来限制占空比。优选地，启动尝试的总最大持续时间（ON和OFF启动序列的持续时间）受终端电路的限制。特别地选择ON和OFF起动间隔以及可选地启动尝试的整体最大持续时间，以便允许足够的时间使电动机绕组热消散到起动器壳体中。这个有限的启动占空比保护起动器免于过热。此外，当与安装在起动机壳体上的恒温开关组合使用并且布置成当达到预定温度时防止起动器通电，限制起动器接通时间和中间静止时间允许壳体和恒温开关更接近于绕组温度。作为另一方面，为了在起动器负载条件变化的情况下保持保护系统的最佳操作，检测起动器电流并且响应地适当地修改起动器ON / OFF占空比。

8. 发明授权

EP0007617B1 Disconnect and overload bypass arrangement for a portable tool 失效
标题翻译：对便携式工具进行断开和过载旁路安排
公开(公告)号：EP0007617B1
公开(公告)日：1983-08-03
申请号：EP79102621.4
申请日：1979-07-24
申请人： Black & Decker Inc.
发明人： Alessio, Lorenzo Ercole
IPC分类号： H01H5/04 , H01H75/08 , H02H3/06 , H02H7/085 , H02H9/02
CPC分类号： H02H9/02 , H02H3/04 , H02H3/06 , H02H7/0859 , Y10S388/934

9. 发明授权

US5689160A Vehicle window lift control 失效
标题翻译：车窗升降控制
公开(公告)号：US5689160A
公开(公告)日：1997-11-18
申请号：US395983
申请日：1995-02-28
申请人： Kouichi Shigematsu , Osamu Kawanobe
发明人： Kouichi Shigematsu , Osamu Kawanobe
IPC分类号： E05F15/00 , H02H7/085 , H02P7/00
CPC分类号： H02H7/0851 , E05F15/41 , E05Y2900/55 , H02H7/0858 , H02H7/0859
摘要： A drive control device for an opening/closing member may be advantageously utilized in vehicular power window systems and the like. The drive control device is active to detect occurrence of pinching of an object obstructing the path of motion of the opening/closing member and, upon detection of such pinching during closing operation is controlled so as to move in the opening direction for a predetermined distance for preventing serious pinching from being applied to, for example, a persons hand or arm which may be blocking a power window while being closed by a vehicle driver. The drive control device further includes timing functions such that closing operation may not be immediately resumed after pinch detection, until a predetermined time period has elapsed. The pinch detection operation is effective to compensate for overrun of the opening/closing member caused by a lag between the time a closing control signal is stopped and the acutal motion of the opening/closing member finally and completely stops.
摘要翻译：用于打开/关闭构件的驱动控制装置可以有利地用于车辆动力窗系统等中。驱动控制装置有效地检测妨碍打开/关闭构件的运动路径的物体的夹持的发生，并且在关闭操作期间检测到这种夹持被控制以便在打开方向上移动预定距离以供防止严重的夹紧被施加到例如由车辆驾驶员关闭时可能阻挡动力窗的人手或手臂。驱动控制装置还包括定时功能，使得在夹紧检测之后可能不立即恢复关闭操作，直到经过预定时间段。夹紧检测操作有效地补偿由关闭控制信号停止的时间和开闭部件的最终运动之间的滞后而导致的开闭部件的超限，并且完全停止。

10. 发明授权

US4901181A Motor control device 失效
标题翻译：电机控制装置
公开(公告)号：US4901181A
公开(公告)日：1990-02-13
申请号：US308935
申请日：1989-02-09
申请人： Choshich Miyanaga , Kanji Yokomizo
发明人： Choshich Miyanaga , Kanji Yokomizo
IPC分类号： H02H7/085
CPC分类号： H02H7/0859
摘要： A motor control device controls a motor driving mechanism which drives a motor according to a motor drive signal for providing a normal drive signal and a locked condition signal. When the motor becomes overloaded while being driven by the motor driving mechanism according to the motor drive signal, the motor driving mechanism is controlled by controlling circuitry which inhibits the motor drive signal from being supplied to the motor driving mechanism. The controlling circuitry, while the motor is in the overloaded state, controls the motor driving mechanism so that power is supplied intermittently to the motor, or so that the supply of power for the regular and reverse rotation is given alternately. The controlling circuitry, when the load of the motor becomes normal, allows driving of the motor according to the motor drive signal.
摘要翻译：电动机控制装置控制电动机驱动机构，其根据用于提供正常驱动信号的电动机驱动信号和锁定状态信号来驱动电动机。当电动机根据电动机驱动信号被电动机驱动机构驱动时变得过载时，通过控制电路来控制电动机驱动机构，该控制电路阻止电动机驱动信号被供给到电动机驱动机构。控制电路在电动机处于过载状态时控制电动机驱动机构，使得电动机间歇地供给电动机，或者交替地给定常规和反向旋转供电。控制电路，当电机负载正常时，允许根据电机驱动信号驱动电机。

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