Huizhou (HK) Yingyuan Technology
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Securities Star News: According to data from Qichacha, KEBODA (603786) has obtained a new invention patent authorization, titled "Pre charging Device for High Voltage Bus Capacitors of New Energy Vehicles". The patent application number is CN202010157847.6, and the authorization date is May 14, 2024.Patent abstract: A pre charging device for a high-voltage bus capacitor of a new energy vehicle, comprising a bidirectional DC-DC conversion circuit, a capacitor voltage sampling circuit, and a controller; The bidirectional DC-DC conversion circuit is coupled between the high-voltage bus capacitor and the charging power supply, and the output end of the capacitor voltage sampling circuit is coupled with the input end of the controller. The bidirectional DC-DC conversion circuit includes an isolation transformer, a first rectifier/inverter circuit, a second rectifier/inverter circuit, an inductor Lf, a switching transistor Q7, a switching transistor Q8, and a capacitor Cbuffer. The controll...
2024
On April 1, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Apple had obtained an item entitled "detachable articulated power supply and data interface", the authorization announcement number was CN116114124B, and the application date was September 2020.The patent abstract shows that the connector insert and these connector sockets have a small shape, and when the connector insert and connector socket are matched, the connector insert can rotate relative to the electronic device accommodating the connector socket and perform joint motion. The connector socket can be connected to components in the electronic device through a flexible circuit board, which has a certain amount of slack or excess length to allow the connector socket and connector insert to rotate relative to the connected components. The bearing supporting the connector socket can engage in joint motion around the axis, allowing the connec...
On May 6, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, JONHON Technology Co., Ltd. applied for a project named "a liquid cooling plug", with the public number of CN117977271A, and the application date was December 2023.The patent abstract shows that the present invention relates to the field of conductive connection technology, particularly to a liquid cooled plug. The liquid cooling plug of the present invention will be used for installing cooling components and the installation chamber of the heat exchange part that accommodates conductive components. The installation position of the heat exchange part and the cooling component is divided into two areas in space. The heat exchange part is set in an area far away from the opening of the installation chamber, and the cooling component is set in an area close to the opening of the installation chamber. This way, when maintenance is needed on the cool...
On April 27, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Dongguan YONG SHENG Wire Technology Co., Ltd. obtained a project named "Plug Structure", with the authorization announcement number of CN220857086U and the application date of January 2023.The patent abstract shows that the present utility model relates to the field of plug technology, in particular to a plug structure comprising a male plug, a female plug, and a locking mechanism, with the male plug having several pins; The female plug has several pinholes corresponding to the pins; The locking mechanism is configured to detachably fix the male and female plugs. This utility model disassembles and sets the male and female plugs to avoid the occurrence of detachment between the male and female plugs during use, thereby affecting the transmission of signals or currents, and thus ensuring the normal use of the socket structure.Attached drawings...
On April 16, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, Dongguan Aohai Technology Co., Ltd. applied for a project entitled "Charging switch circuit, switching power supply circuit, charger and charging control method", with the public number of CN117895618A and the application date of January 2024.The patent abstract shows that the present invention discloses a charging switch circuit, a switching power supply circuit, a charger, and a charging control method. The charging switch circuit comprises a protocol chip, a BUCK circuit, a first switch circuit, and a second switch circuit; The first input terminal of the first switch circuit is connected to the input interface, the second input terminal of the first switch circuit is connected to the input interface through the BUCK circuit, and the output terminal of the first switch circuit is connected to the first output interface; The first input term...