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公开(公告)号：EP4318537A1
公开(公告)日：2024-02-07
申请号：EP22921471.3
申请日：2022-08-16
发明人： XIA, Xiaomin , CHEN, Xiaohai , ZHENG, Fajin , TANG, Fan
摘要： A circuit breaker includes a shell and at least two L poles, wherein an electric leakage protection electrode is disposed between the two L poles; an electromagnetic coil of an electromagnetic system is disposed on one side of a third operating mechanism of the electric leakage protection electrode, and a connecting rod is rotatably assembled on one side of the electromagnetic coil. The third operating mechanism is coordinated with operating mechanisms of the two adjacent L poles through the connecting rod. When the circuit breaker is closed, the connecting rod rotates to a closing position along with the electric leakage protection electrode and the operating mechanisms of the two adjacent L poles. When the circuit breaker is opened, the connecting rod rotates towards an opening direction along with the operating mechanisms of the two L poles adjacent to the electric leakage protection electrode, but the third operating mechanism does not act; and in the event of an electric leakage fault, the third operating mechanism drives the operating mechanisms of the two adjacent L poles to jointly rotate towards an opening direction through the connecting rod. According to the present invention, the electric leakage protection electrode is in linkage connection with the two adjacent L poles through the connecting rod, so that the degree of cooperation between the circuit breaker poles of the circuit breaker is improved.
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2.发明公开
公开(公告)号：EP4227444A1
公开(公告)日：2023-08-16
申请号：EP22779106.8
申请日：2022-03-31
发明人： SHEN, Qi , LIN, Junyu , ZHENG, Jianyong , HU, Yiming , WANG, Chuan , LIN, Rongzhen , JI, Shen , XU, Zhengli , ZHOU, Jinyu , ZENG, Lang
摘要： The present invention relates to the field of material technologies, and more particularly to a compound dispersant which is composed of distilled water, a nonionic surfactant, an anionic surfactant and a wetting agent. The nonionic surfactant is a Tween compound, and the anionic surfactant is hydrocarbyl sulfate salts; and the compound dispersant can block or slow down agglomeration of graphene in a dispersion solution. The present invention further relates to a preparation method of the compound dispersant, which is simple to operate. The present invention further relates to a mixed electroplating solution containing the compound dispersant, in which the graphene is dispersed uniformly and stably. The present invention further relates to a preparation method of the mixed electroplating solution, in which graphene is distributed uniformly and stably.
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公开(公告)号：EP4117010A1
公开(公告)日：2023-01-11
申请号：EP21765252.8
申请日：2021-02-12
发明人： CHEN, Zaiwei
摘要： A miniature circuit breaker comprises a housing and a handle, wherein an overload protection device and an operating mechanism connected to a moving contact are arranged in the housing; the overload protection device includes a temperature control assembly equipped with a bimetal sheet; an incoming wire connecting terminal connected to the moving contact is arranged on one side, close to the moving contact, inside the housing; a static contact that cooperates with the moving contact is arranged on one side of the moving contact, and the temperature control assembly is arranged on the other side of the moving contact; when overloaded, the temperature control assembly drives a temperature control protection device arranged on the housing to trigger the circuit breaker to trip; the temperature control protection device includes a partition plate and a thermal tripping rod, wherein the partition plate separates the moving contact and the thermal tripping rod in two different planes; and the temperature control assembly includes a bimetal sheet and a current-carrying conductor. When the circuit breaker is overloaded, a movable end of the bimetal sheet drives the thermal tripping rod to rotate to trigger the circuit breaker to trip. According to the miniature circuit breaker of the present invention, the length of the current-carrying conductor of the temperature control assembly is shortened, which reduces the internal resistance and heat generation, thereby avoiding a damage to the parts caused by the overheating of the temperature control assembly.
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公开(公告)号：EP4060706A1
公开(公告)日：2022-09-21
申请号：EP20887459.4
申请日：2020-11-14
发明人： GE, Weijun , LU, Kejun , GU, Xiangyi
IPC分类号： H01H71/04
摘要： The invention relates to the field of low-voltage electrical appliances, in particular to a plug-in circuit breaker. The operating button includes a button inner end inserted inside the circuit breaker and a button outer end, an indicator slot is arranged inside the operating button, an indicating hole is arranged on the button outer end, the plug-in circuit breaker further includes an indicating member, which is slidably inserted inside the indicator slot, and one end of which is provided with a make-contact indicating surface and a break-contact indicating surface, when the plug-in circuit breaker is in a break-contact state, the break-contact indicating surface is arranged opposite to the indicating hole, thus during pressing the operating button, the indicating member moves inside the indicator slot, after make-contact state, the make-contact indicating surface is arranged opposite to the indicating hole. In the plug-in circuit breaker of the present invention, the indicating member is arranged inside the operating button, thereby saving the internal assembly space of the housing, and the indicating member can indicate the break-contact and make-contact state through the indicating hole, thereby facilitating observation.
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公开(公告)号：EP3905297A1
公开(公告)日：2021-11-03
申请号：EP19905157.4
申请日：2019-12-24
发明人： LU, Kejun , GU, Xiangyi
摘要： The invention relates to the field of low-voltage electric appliances, and more particularly, to a miniature circuit breaker, which includes a circuit breaker housing, a button mechanism, and an indicating apparatus, wherein the circuit breaker housing includes an indicating hole arranged in one side thereof, the button mechanism is in sliding fit with the circuit breaker housing, the indicating apparatus is in driving fit with the button mechanism, and when the button mechanism is pressed to switch on the miniature circuit breaker, the button mechanism drives the indicating apparatus to shield the indicating hole; and according to the miniature circuit breaker of the invention, the indicating apparatus thereof may indicate a switching-on state of the circuit breaker when the circuit breaker is switched on, thus improving a safety of electricity consumption.
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公开(公告)号：EP3319102B1
公开(公告)日：2020-09-23
申请号：EP16817229.4
申请日：2016-06-28
发明人： JIA, Feng , ZHENG, Jiexin , XI, Hong , ZENG, Ping , LI, Sihong , HUANG, Beiming
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公开(公告)号：EP3389073B1
公开(公告)日：2020-09-16
申请号：EP16872238.7
申请日：2016-10-24
发明人： XU, Ping , HU, Yujia , ZHANG, Xingdong , ZHANG, Zhiwen , XIAO, Tifeng
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公开(公告)号：EP3226358B1
公开(公告)日：2019-10-30
申请号：EP15862196.1
申请日：2015-11-20
发明人： XU, Ruoliang , YU, Xuefeng , YANG, Yaoke , CHEN, Ting , PU, Qicheng
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公开(公告)号：EP3179494A4
公开(公告)日：2018-04-11
申请号：EP15830389
申请日：2015-07-23
发明人： WAN XIANGJUN , SU BEILU , WANG JUN , CHEN ZHENGXIN , FENG JING
CPC分类号： H01F38/20 , H01F3/10 , H01F27/245 , H01F27/2828 , H01F27/324 , H01F30/04 , H01F38/28 , H01F38/30
摘要： The present invention discloses a current transformer which comprises a closed magnetic circuit and a secondary winding. A first part of the closed magnetic circuit completely surrounds a primary conductor, and a second part of the closed magnetic circuit forms the secondary winding, the second part of the closed magnetic circuit serves as a magnetic core of the secondary winding. The closed magnetic circuit forms a plurality of branch magnetic circuits at the second part, and a secondary winding is formed on each branch magnetic circuit, each branch magnetic circuit serves as a magnetic core of a corresponding secondary winding, each secondary winding is staggered with each other in at least one of the length, the height and the thickness. The current transformer of the present invention fully utilizes the idle space therein. A plurality of secondary windings are arranged in a spatial interleaving manner and a plurality of secondary windings are arranged in a spatial interleaving manner, the plurality of secondary windings significantly increase a total energy outputted by the circuit transformer. Larger output energy is obtained under a same volume, and a performance of the circuit breaker under a small current condition can be improved.
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公开(公告)号：EP3176803A4
公开(公告)日：2018-04-04
申请号：EP15827157
申请日：2015-07-23
发明人： YU FEI , GU CHANGXUN , GE SHUNFENG , ZHANG DI , FENG YUGANG , SHI YAWEN , ZENG PING
CPC分类号： H01H47/02 , H01H47/223 , H01H47/325 , H02M1/12 , H02M7/04
摘要： A controller for an alternating current contactor. The controller comprises: a filtering and rectification circuit (101, 102), which filters and rectifies external alternating current; an electromagnet component (103), which is driven by an output of the filtering and rectification circuit and performs actions of attraction, holding or releasing; a power transistor circuit (104), which is connected to the electromagnet component; and a microcontroller (112), which controls on or off of the power transistor circuit to control the electromagnet component so as to perform the actions of attraction, holding or releasing. The controller further comprises: a voltage control loop, which provides a voltage feedback signal to the microcontroller and the microcontroller generates a control signal according to the voltage feedback signal, wherein the control signal is a PWM control signal having different duty cycles during the attraction and holding of the electromagnet component so that the current does not exceed a predetermined current threshold during the attraction and holding of the electromagnet component; and a current control loop, which provides a current feedback signal to the microcontroller and the microcontroller turns off the power transistor circuit upon detecting an overcurrent exceeding the current threshold.
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