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公开(公告)号：US12063025B2
公开(公告)日：2024-08-13
申请号：US17295041
申请日：2019-12-04
申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. , MIDEA GROUP CO., LTD.
发明人： Junfeng Hou , Jian Hu , Chengkai Ye
摘要： A system (10) applied in switch tube for suppressing conducted EMI and a domestic appliance are provided, and the system (10) includes a conduction EMI suppression circuit, an inductive load (1, 71, 81) and at least one switch tube (2, 72, 82). The conducted EMI suppression circuit includes one inductor (3, 73, 83, 123) and an RC circuit (4, 74, 84, 124). The inductor (3, 73, 83, 123) and each switch tube (2, 72, 82) are connected in series. The inductive load (1, 71, 82) and each switch tube (2, 72, 82) are connected. The inductor (3, 73, 83, 123) are connected in series with each switch tube (2, 72, 82), and further connected in parallel with the RC circuit (4. 74, 84, 124). The conduction EMI suppression circuit is configured to suppress conducted EMI generated by each switch tube (2, 72, 82) being turned off.
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公开(公告)号：US11937751B2
公开(公告)日：2024-03-26
申请号：US17287529
申请日：2018-11-09
申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. , MIDEA GROUP CO., LTD.
发明人： Pin Yang , Jiefeng Cheng , Xinjian Huang , Shuyun Wu , Junge Zhang
CPC分类号： A47L11/4011 , A47L11/24 , A47L11/4002 , A47L11/4038 , A47L11/4041 , A47L11/4066 , A47L11/4072 , G01N27/04 , G01N27/226 , A47L2201/04 , A47L2201/06
摘要： The present disclosure provides a movable electric device. The movable electric device includes a movable device body and a contact detection electrode. The movable device body has an electric drive means. The contact detection electrode is mounted on the movable device body. When the contact detection electrode _contacts diffusible dirt, a resistance, capacitance or impedance of the contact detection electrode varies.
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公开(公告)号：US11935845B2
公开(公告)日：2024-03-19
申请号：US17724416
申请日：2022-04-19
申请人： Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd. , Midea Group Co., Ltd.
发明人： Hao Lan , Yuxiang Feng
IPC分类号： H01L29/40 , H01L23/64 , H01L29/417 , H01L29/66 , H01L29/739
CPC分类号： H01L23/642 , H01L29/401 , H01L29/41708 , H01L29/41741 , H01L29/41775 , H01L29/6634 , H01L29/7398
摘要： Disclosed are a semiconductor device, a preparation method therefor and electrical equipment thereof. The semiconductor device includes: a silicon substrate on which an emitter, a gate, and a collector are formed; a bootstrap electrode formed on the silicon substrate; and an insulating layer, formed on the silicon substrate and disposed between the emitter and the bootstrap electrode. A bootstrap capacitor is formed between the emitter and the bootstrap electrode.
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公开(公告)号：US11910972B2
公开(公告)日：2024-02-27
申请号：US17285095
申请日：2018-11-09
申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. , MIDEA GROUP CO., LTD.
发明人： Jiefeng Cheng , Sungjin Kim , Qing Li , Site Hu , Zhonghua Li , Tao Fu
CPC分类号： A47L11/24 , A47L5/14 , A47L9/0477 , A47L9/08 , A47L9/2826 , A47L9/2852 , A47L2201/04 , A47L2201/06
摘要： Provided is a sweeping robot. The sweeping robot includes a chassis and a jet dust raising structure, and the jet dust raising structure is installed on the chassis, the jet dust raising structure has an air inlet, an air outlet and a jet channel connected to the air inlet and the air outlet, the air inlet is configured for air flow into the jet channel, the air outlet is located on a front side of the brush suction port of the sweeping robot.
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公开(公告)号：US11909229B2
公开(公告)日：2024-02-20
申请号：US17415731
申请日：2019-12-05
申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. , MIDEA GROUP CO., LTD.
发明人： Shouliang Gu , Kunren Yin , Yuanyang Zuo , Sanying Yu , Junfeng Hou
摘要： A wireless power transmission system includes: an electrical energy-receiving oscillation circuit including an electrical energy-receiving coil L2 and a compensation capacitor C2 connected in series, the electrical energy-receiving coil L2 sensing an alternating magnetic field and generating an induction current accordingly; a rectifier circuit connected to two ends of the electrical energy-receiving oscillation circuit; and a modulation circuit including multiple modulation sub-circuits, each of the modulation sub-circuits being separately connected to the electrical energy-receiving oscillation circuit, and the modulation circuit receiving a drive signal used to select a modulation sub-circuit matching a power level of a load of the wireless power transmission receiving circuit to operate, and the modulation sub-circuits receive, during a communication process, a communication signal and load the communication signal on a carrier signal to perform modulation.
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公开(公告)号：US20240000291A1
公开(公告)日：2024-01-04
申请号：US18369641
申请日：2023-09-18
申请人： Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd. , Midea Group Co., Ltd. , GD Midea Air-Conditioning Equipment Co., Ltd.
发明人： Wenpeng WANG
IPC分类号： A47L15/42
CPC分类号： A47L15/4291 , A47L15/4225 , A47L15/4223 , A47L15/4272 , F24H4/02
摘要： A heat pump dishwasher includes a chassis and a heat pump system. A liquid collecting groove is provided at an upper side of the chassis. The heat pump system includes an evaporator and a compressor, both the evaporator and the compressor are installed at the chassis, and the compressor is installed at the liquid collecting groove. Condensed water may be collected, and condensation water may be avoided in the liquid collecting groove and may reduce the corrosion of the liquid collecting groove and may reduce interruptions to the operation of electrical components.
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公开(公告)号：US11716037B2
公开(公告)日：2023-08-01
申请号：US17418243
申请日：2018-12-27
申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. , MIDEA GROUP CO., LTD.
发明人： Lei Yang , Ziqiang Zhu
CPC分类号： H02P6/182
摘要： A determination method and apparatus for a brushless direct current counter-electromotive force zero crossing point threshold and a storage medium, the method includes detecting counter-electromotive force zero crossing point time intervals of two adjacent sectors of a brushless direct current electric motor to obtain at least two first time intervals; utilizing the obtained at least two first time intervals to determine errors of a counter-electromotive force zero crossing point; converging the determined errors of the counter-electromotive force zero crossing point to obtain a counter-electromotive force zero crossing point threshold correction increment; and utilizing the obtained counter-electromotive force zero crossing point threshold correction increment to determine a counter-electromotive force zero crossing point threshold.
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公开(公告)号：US11661943B2
公开(公告)日：2023-05-30
申请号：US17283528
申请日：2018-12-21
申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. , MIDEA GROUP CO., LTD.
发明人： Xiaowen Hu , Site Hu , Hui Zhang , Rong Yi
CPC分类号： F04D19/024 , F04D25/06 , F04D25/08 , F04D25/166 , F04D29/325 , F04D29/582
摘要： A counter-rotating fan, comprising two impellers and a motor. The motor is used for driving the two impellers to rotate. The two impellers are axially spaced apart from each other, and are divided into a first-stage impeller and a second-stage impeller. When the counter-rotating fan operates, airflow is blown to the direction of the second-stage impeller by means of the first-stage impeller. At least one impeller has turns of blades arranged in the radial direction of the impeller. Blades of each turn are spaced apart from each other around a hub of the impeller, and a spacer ring is connected between two adjacent turns of blades. The counter-rotating fan is stable in rotation and good in cooling effect, it is not easy to deform, and the wind is strong in the center.
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公开(公告)号：US11601047B2
公开(公告)日：2023-03-07
申请号：US17286484
申请日：2018-12-21
申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. , MIDEA GROUP CO., LTD.
发明人： Jian Hu , Junfeng Hou , Dingjun Liang , Wei Zhang
摘要： Disclosed are an electric control assembly and an electrical device. The electric control assembly includes an electric control board and a metal plate arranged on one side of the electric control board in parallel. The electric control board includes a first filter circuit and a power supply line. The power supply line includes a power input terminal, a rectifier circuit, an intelligent power module and a power output terminal. The power input terminal, the rectifier circuit, the intelligent power module and the power output terminal are connected in sequence. A first end of the first filter circuit is connected with the power supply line. The metal plate and the electric control board are arranged at an interval. The metal plate is electrically connected with a shell of the electrical load. A second end of the first filter circuit is electrically connected with the metal plate.
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公开(公告)号：US11506211B2
公开(公告)日：2022-11-22
申请号：US17283534
申请日：2018-12-21
申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. , MIDEA GROUP CO., LTD.
发明人： Shuqi Li , Hui Zhang , Jizhe Zhang
摘要： A counter-rotating fan, comprising an impeller assembly and an air guide structure. The impeller assembly comprises a first stage impeller and a second stage impeller, of which the rotation directions are opposite. The pressure surfaces of first blades of the first stage impeller are configured to be opposite the suction surfaces of second blades of the second stage impeller, and from the blade root to the blade tip, each of the first blades and the second blades bends toward its own rotation direction. The air guide structure comprises a flow guide cover. The flow guide cover is provided at the center position of the air intake side of the first stage impeller, and the air intake side surface of the flow guide cover at least partially forms a flow guide surface, the flow guide surface extending along the axis of the first stage impeller in the direction away from the counter-rotating fan.
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