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Securities Star News: According to data from Qichacha, PRULDE (301353) has obtained a new design patent authorization, named "Charger (0.6A)", with patent application number CN202330685346. X, and the authorization date is April 19, 2024.Patent abstract: 1 The name of this design product is Charger (0.6A). 2. The purpose of this appearance design product is to charge the battery pack of electric tools. 3. The design key point of this appearance design product is its shape. 4. The image or photo that best illustrates the key points of the design: a stereoscopic image.Attached drawings of patent abstractSince the beginning of this year, PRULDE has obtained 8 new patent authorizations, a decrease of 33.33% compared to the same period last year. Based on the company's mid year financial data for 2023, the company invested 10.8836 million yuan in research and development in the first half of 2023, a year-on-year decrease of 8.68%.
2024
On June 4, 2024, according to Tianyancha's intellectual property information, Shenzhen Raymax New Energy Co., Ltd. applied for an auxiliary circuit, wireless charging receiver, and wireless charging system, with the public number CN202410301002.8 and the application date being March 2024.The patent abstract shows that the present invention discloses an auxiliary circuit, a wireless charging receiving end, and a wireless charging system. The auxiliary circuit includes a voltage divider rectifier circuit, which is connected to a receiving coil in the power circuit to obtain AC voltage, and rectifies the AC voltage into DC voltage and divides the DC voltage; Filter circuit, the input terminal of the filter circuit is connected to the voltage divider rectifier circuit to obtain DC voltage and filter the DC voltage; Protect the switch circuit by connecting the input end of the protection switch circuit to the output end of the filtering circuit, and connecting the output end of the protect...
Securities Star News: According to data from Qichacha, LEXY (603355) has recently obtained a utility model patent authorization, titled "A charging dock for cleaning equipment", with patent application number CN202322518739.9 and authorization date of June 14, 2024.Patent Abstract: This utility model discloses a charging stand for cleaning equipment, comprising a base body, a charging unit, and a dust cover block. The base body has a cleaning area for placing cleaning equipment; The charging unit and the dust cover block are both set on the base body, and the charging unit comprises conductive parts and a support seat set on the base body. The conductive parts are fixedly connected to the support seat, and a pin area is formed on the outer side of the support seat. The conductive parts include conductive pins, which are at least partially located within the pin area for electrical connection with the battery; The shading block is located on the upper side of the pin insertion area and...
Securities Star News: According to data from Qichacha, Yuxin Electronics (301107) has obtained a new invention patent authorization, titled "A DC power supply circuit with adjustable output voltage for fuel frequency conversion generator sets". The patent application number is CN201811488261.7, and the authorization date is June 11, 2024.Patent abstract: A direct current power supply circuit with adjustable output voltage for a fuel frequency conversion generator set, including a three-phase half controlled full bridge rectification and filtering circuit, a DC DC conversion module circuit, a PWM drive control module, and a sampling module; The input end of the three-phase half controlled full bridge rectification and filtering circuit is connected to the three-phase AC end; The output end of the three-phase half controlled full bridge rectification and filtering circuit is connected to the input end of the DC/DC conversion module circuit; The sampling module is used to collect input e...
Securities Star News: According to data from Qichacha, SOUTHCHIP (688484) has obtained a new invention patent authorization, titled "A Circuit Topology for Voltage Conversion". The patent application number is CN202210002855.2, and the authorization date is June 11, 2024.Patent Abstract: The present invention belongs to the field of power management technology, specifically relating to a circuit topology for achieving voltage conversion. The present invention mainly addresses the problem of high cost due to the use of too many semiconductor devices in traditional methods, which makes it impossible to popularize low-cost charging devices. It proposes to integrate switch mode power supplies and switch capacitors, so that switch mode power supplies and switch capacitors can reuse some switching tubes to reduce the number of semiconductor devices used and lower the cost of charging schemes.Attached drawings of patent abstractSince the beginning of this year, SOUTHCHIP has obtained 10 new...