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1. 发明公开

US20240373573A1 WIRING STRUCTURE AND ELECTRICAL BOX 审中-公开
公开(公告)号：US20240373573A1
公开(公告)日：2024-11-07
申请号：US18685874
申请日：2022-05-25
申请人： Sungrow Power Supply Co., Ltd.
发明人： Zhanliang Shen , Yanfei Yu , Peng Chen , Xiaoxun Li
IPC分类号： H05K5/02
CPC分类号： H05K5/0247
摘要： A wiring structure and an electrical box are provided. The wiring structure includes a first mounting member and a second mounting member, the first mounting member is used for being arranged outside the electrical box, and is provided with a plurality of conductive connectors; the conductive connectors extend into the electrical box to be connected to an internal device; the second mounting member is used for being detachably connected to the first mounting member, and is internally provided with a plurality of conductive fitting members; the conductive fitting members are connected to external cables; the external cables are slidably fitted with the second mounting member in a sealed manner, and the conductive fitting members are used for being connected to the conductive connectors in a fitting manner when the second mounting member is connected to the first mounting member in a fitting manner.

2. 发明授权

US12132278B2 Unlocking circuit for charging station when powered off 有权
公开(公告)号：US12132278B2
公开(公告)日：2024-10-29
申请号：US17380108
申请日：2021-07-20
申请人： Sungrow Power Supply Co., Ltd.
发明人： Xin Chen , Yuefeng Yang , Linchong Xu
IPC分类号： B60L53/16 , H01R13/639 , H01R13/70
CPC分类号： H01R13/639 , B60L53/16 , H01R13/70 , H01R2201/26
摘要： An unlocking circuit for a charging station when powered off is provided. A microcontroller unit outputs a first level signal and a second level signal when an auxiliary power supply is cut off. A first signal processing circuit receives the first level signal and converts the first level signal into a first control signal for unlocking an electronic lock. A second signal processing circuit receives the second level signal and converts the second level signal into a second control signal including information about action effectiveness of the electronic lock. An action execution circuit receives the first control signal and the second control signal, and responds to the first control signal and the second control signal to unlock the electronic lock.

3. 发明授权

US12119644B2 Control method for photovoltaic rapid switching-off system, and application apparatus and system therefor 有权
公开(公告)号：US12119644B2
公开(公告)日：2024-10-15
申请号：US17914702
申请日：2021-03-08
申请人： Sungrow Power Supply Co., Ltd.
发明人： Yu Yang , Yanfei Yu , Jun Xu , Qiaodi Chen
IPC分类号： H02J3/00 , H02J3/38
CPC分类号： H02J3/001 , H02J3/38 , H02J2300/26
摘要： A method for controlling a photovoltaic rapid shutdown system, an inverting system, and a photovoltaic rapid shutdown system. In the photovoltaic rapid shutdown system, the inverting system determines whether the photovoltaic rapid shutdown system is to enter a safe mode, introduces fluctuations onto a direct-current bus in the photovoltaic rapid shutdown system in response to the photovoltaic rapid shutdown system being not to enter the safe mode, and otherwise does not introduce the fluctuations onto the direct-current bus. A shutdown device for a photovoltaic module determines according to an output parameter thereof whether an electrical parameter on the direct-current bus connected to the shutdown device meets a preset condition, controls itself to be turned on or maintains itself being on in response to the electrical parameter meeting the preset condition, and otherwise controls itself to be turned off or maintains itself being off.

4. 发明公开

US20240213787A1 CHARGING PILE, POWER MODULE, AND METHOD FOR CONTROLLING THE SAME 审中-公开
公开(公告)号：US20240213787A1
公开(公告)日：2024-06-27
申请号：US18351457
申请日：2023-07-12
申请人： Sungrow Power Supply Co., Ltd.
发明人： Xuanzhe Peng , Zijiao Pan , Enzan Tan , Yilong Liang
IPC分类号： H02J7/00 , B60L53/16 , B60L53/31
CPC分类号： H02J7/0042 , B60L53/16 , B60L53/31 , H02J7/00032 , B60L2210/10 , B60L2210/30 , H02J2207/20 , H02J2207/30
摘要： A charging pile, a power module, and a method for controlling the same. In response to receiving a signal of operation, samples of an input voltage of three relays corresponding to three phases, respectively, at an input of a power module are acquired to determine whether a line voltage between inputs of two of the three relays is within a predetermined voltage range. The two relays are closed to pre-charge a bus capacitor in a converting circuitry of the power module, in response to determining that the line voltage is within the predetermined voltage range. The predetermined voltage range comprises zero voltage, such that each relay can be closed when a voltage at its input is close to zero. An impulse current is decreased without help of an arc quenching device, thereby saving an internal space of the charging pile.

5. 发明公开

US20240147649A1 INVERTER AND INTEGRATED PLATFORM HAVING SAME 审中-公开
公开(公告)号：US20240147649A1
公开(公告)日：2024-05-02
申请号：US18279844
申请日：2022-01-27
申请人： Sungrow Power Supply Co., Ltd.
发明人： Xiaohu Wang , Qiyao Zhu , Xianwei Zhang , Jun Tan
IPC分类号： H05K7/14 , H02M7/00 , H05K5/02 , H05K7/20
CPC分类号： H05K7/14325 , H02M7/003 , H05K7/206 , H05K5/0214
摘要： An inverter and an integrated platform having the same are provided. The inverter includes a cabinet having a cabinet door; an inverter body arranged in the cabinet; and a heat exchanger arranged on an outer side of the cabinet, where the inverter body has an alternating-current side, and the cabinet door is arranged on the alternating-current side or an opposite side of the alternating-current side of the inverter body.

6. 发明公开

US20240146067A1 PHOTOVOLTAIC RAPID SHUTDOWN SYSTEM AND CONTROL METHOD THEREFOR 审中-公开
公开(公告)号：US20240146067A1
公开(公告)日：2024-05-02
申请号：US18279141
申请日：2022-03-03
申请人： Sungrow Power Supply Co., Ltd.
发明人： Qiaodi Chen , Yu Yang , Jun Xu
IPC分类号： H02J3/38 , H02J3/00 , H02J3/01
CPC分类号： H02J3/38 , H02J3/001 , H02J3/01 , H02J2300/26
摘要： A rapid shutdown system and a method for controlling the rapid shutdown system are provided. A disturbance is applied to a direct-current side of an inverter in the rapid shutdown system only when the inverter does not meet a starting condition, i.e., before the inverter starts. Once meeting the starting condition, the inverter normally operates. A shutdown device in the rapid shutdown system determines its state by determining whether the electrical signal at its output end meets the preset condition, and switches itself on or off in response to its determination.

7. 发明公开

US20240113638A1 SINGLE-STAGE MULTI-PATH DIRECT CURRENT ACCESS CONVERTER AND CONTROL METHOD THEREOF 审中-公开
公开(公告)号：US20240113638A1
公开(公告)日：2024-04-04
申请号：US18350035
申请日：2023-07-11
申请人： Sungrow Power Supply Co., Ltd.
发明人： Lu Zhang , Hao Wang , Yu Gu , Linhai Zhao , Qiaodi Chen
IPC分类号： H02M7/493 , H02M7/537
CPC分类号： H02M7/493 , H02M7/537
摘要： A single-stage multi-path direct current access converter and a control method thereof are provided. The single-stage multi-path direct current access converter includes an AC-side conversion circuit; at least two DC-side conversion circuits; and transformers corresponding to the at least two DC-side conversion circuits. AC sides of the at least two DC-side conversion circuits are respectively connected to primary windings of the corresponding transformers; secondary windings of the transformers are connected in parallel to a first side of the AC-side conversion circuit; each of the at least two DC-side conversion circuits is configured to invert DC power received by the DC-side conversion circuit, or to rectify AC power received by the DC-side conversion circuit; and the AC-side conversion circuit is configured to perform AC frequency conversion.

8. 发明公开

US20240021358A1 TRANSFORMER 审中-公开
公开(公告)号：US20240021358A1
公开(公告)日：2024-01-18
申请号：US18037518
申请日：2021-05-06
申请人： Sungrow Power Supply Co., Ltd.
发明人： Guoqing Cai , Jiacai Zhuang , Jun Xu , Wei Liu
IPC分类号： H01F27/30 , H01F27/24 , H01F27/29
CPC分类号： H01F27/306 , H01F27/24 , H01F27/29
摘要： The present invention provides a transformer, which is applied to the technical field of power transmission and distribution, the transformer comprising an iron core, body windings, and a semi-conductive layer, the body windings being sleeved on a core post of the iron core, and the semi-conductive layer being correspondingly provided with the body windings. Auxiliary circuits are connected to the body windings, the auxiliary circuits and preset positions of the body windings have equal potentials, and an equipotential connection point of the semi-conductive layer is provided by the auxiliary circuits. After the semi-conductive layer is connected to the auxiliary circuits, the effect of balancing the electric field distribution of a winding can be achieved. In the transformer provided in the present invention, an equipotential connection point having an equal potential with the preset positions of the body windings of the transformer is provided by means of the auxiliary circuits, and the semi-conductive layer is directly connected to the equipotential connection point, thereby achieving set effects of the semi-conductive layer, that is, improving the electric field distribution of windings, and improving the high-voltage insulation performance of the transformer without damaging the insulation between litz wire strands.

9. 发明授权

US11841724B2 MLPE photovoltaic system and method for photovoltaic string control in MLPE photovoltaic system 有权
公开(公告)号：US11841724B2
公开(公告)日：2023-12-12
申请号：US17519659
申请日：2021-11-05
申请人： Sungrow Power Supply Co., Ltd.
发明人： Yu Yang , Yuqi Peng , Jun Xu
IPC分类号： G05F1/67 , G05F1/06 , G05F1/573
CPC分类号： G05F1/06 , G05F1/5735
摘要： A module level power electronics (MLPE) photovoltaic system and a method for photovoltaic string control are provided. The method is applied to a control unit in the MLPE photovoltaic system. The control unit detects an output current of each photovoltaic string in the MLPE photovoltaic system, and then controls, for photovoltaic strings connected in parallel to a same inverter in the MLPE photovoltaic system, a voltage of a photovoltaic string with larger output current to be reduced, or controls a voltage of a photovoltaic string with smaller output current to be increased, so that backflow current can be reduced to preset range tolerable for MLPE device. The method is from a perspective of the MLPE photovoltaic system, the backflow current is limited by controlling voltage change of associated photovoltaic string without additional hardware cost, effectively protecting MLPE device in the MLPE photovoltaic system.

10. 发明授权

US11831184B2 Method and device for acquiring charging electricity amount, and electronic device 有权
公开(公告)号：US11831184B2
公开(公告)日：2023-11-28
申请号：US17718718
申请日：2022-04-12
申请人： Sungrow Power Supply Co., Ltd.
发明人： Xingfeng Shui , Zijiao Pan , Peng Zhang , Laibao Li
IPC分类号： G01R31/00 , H02J7/00 , B60L53/66 , G01R22/06 , G06Q50/06
CPC分类号： H02J7/00032 , B60L53/665 , G01R22/068 , G06Q50/06 , H02J7/0047
摘要： A method and a device for acquiring a charging electricity amount, and an electronic device are provided. When a controller determines based on at least operation state information of an external electric meter that the external electric meter is in a fault state, the first amount of electricity, outputted by the charging pile when the external electric meter is in the fault state, can be calculated based on at least first electric energy output data of the charging pile acquired by the charging module of the charging pile when the external electric meter is in the fault state. That is, the amount of electricity consumed by the charging pile can be calculated even when the external electric meter is in the fault state, so that the controller calculates the cost based on the amount of electricity consumed by the charging pile.

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