Patents by Inventor Dongjing Song

Dongjing Song has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10971764
    Abstract: The present invention relates to a charging apparatus, which comprises: a first charging interface and a second charging interface, which respectively and detachably connected to a first energy storage apparatus and a second energy storage apparatus; a power supply conversion circuit, converting external power supply into charging energy; a charging circuit, outputting charging energy output by the power supply conversion circuit to the first charging interface and the second charging interface, wherein the charging circuit comprises a first charging mode and a second charging mode. In the first charging mode, the charging circuit outputs charging energy to both the first charging interface and the second charging interface, and in the second charging mode, the charging circuit selectively outputs charging energy to the first charging interface or the second charging interface.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: April 6, 2021
    Assignee: Positec Power Tools (Suzhou) Co., Ltd.
    Inventors: Don Zhendong Gao, Guoliang Mu, Mingming Chen, Dongjing Song
  • Publication number: 20190288534
    Abstract: The present invention relates to a charging apparatus, which comprises: a first charging interface and a second charging interface, which respectively and detachably connected to a first energy storage apparatus and a second energy storage apparatus; a power supply conversion circuit, converting external power supply into charging energy; a charging circuit, outputting charging energy output by the power supply conversion circuit to the first charging interface and the second charging interface, wherein the charging circuit comprises a first charging mode and a second charging mode. In the first charging mode, the charging circuit outputs charging energy to both the first charging interface and the second charging interface, and in the second charging mode, the charging circuit selectively outputs charging energy to the first charging interface or the second charging interface.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 19, 2019
    Inventors: Don Zhendong Gao, Guoliang Mu, Mingming Chen, Dongjing Song
  • Patent number: 10105838
    Abstract: An automatic moving device and a control method therefor. The automatic moving device comprises a battery pack providing power. The automatic moving device can work within a working area and automatically return to a charging station for charging. The control method comprises monitoring the power level of the battery pack; if the power level of the battery pack is less than or equal to a preset power level, initiating an action of returning the automatic moving device to the charging station; and after a preset time period, stopping the travel. By setting a preset time period simultaneously with initiating a return action, and executing a return action within the preset time period, the control method prevents damage to the battery pack from over-discharging caused by the automatic moving device continually returning, thus achieving the effects of protecting the battery pack and extending the life thereof.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: October 23, 2018
    Assignee: Positec Power Tools (Suzhou) Co., Ltd
    Inventors: Guoliang Mou, Jiaofeng Tian, Xiaochu Sheng, Hongbing Wu, Dongjing Song
  • Publication number: 20160318178
    Abstract: An automatic moving device and a control method therefor. The automatic moving device comprises a battery pack providing power. The automatic moving device can work within a working area and automatically return to a charging station for charging. The control method comprises the following steps: monitoring the power level of the battery pack; if the power level of the battery pack is less than or equal to a preset power level, initiating an action of returning the automatic moving device to the charging station; and after a preset time period, stopping the travel. By setting a preset time period simultaneously with initiating a return action, and executing a return action within the preset time period, the control method prevents damage to the battery pack from over-discharging caused by the automatic moving device continually returning, thus achieving the effects of protecting the battery pack and extending the life thereof.
    Type: Application
    Filed: July 13, 2016
    Publication date: November 3, 2016
    Inventors: Guoliang MOU, Jiaofeng TIAN, Xiaochu SHENG, Hongbing WU, Dongjing SONG
  • Patent number: 9440350
    Abstract: An automatic moving device and a control method therefor. The automatic moving device comprises a battery pack providing power. The automatic moving device can work within a working area and automatically return to a charging station for charging. The control method comprises the following steps: monitoring the power level of the battery pack; if the power level of the battery pack is less than or equal to a preset power level, initiating an action of returning the automatic moving device to the charging station; and after a preset time period, stopping the travel. By setting a preset time period simultaneously with initiating a return action, and executing a return action within the preset time period, the control method prevents damage to the battery pack from over-discharging caused by the automatic moving device continually returning, thus achieving the effects of protecting the battery pack and extending the life thereof.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 13, 2016
    Assignee: Positec Power Tools (Suzhou) Co., LTD
    Inventors: Guoliang Mou, Jiaofeng Tian, Xiaochu Sheng, Hongbing Wu, Dongjing Song
  • Publication number: 20150105904
    Abstract: An automatic moving device and a control method therefor. The automatic moving device comprises a battery pack providing power. The automatic moving device can work within a working area and automatically return to a charging station for charging. The control method comprises the following steps: monitoring the power level of the battery pack; if the power level of the battery pack is less than or equal to a preset power level, initiating an action of returning the automatic moving device to the charging station; and after a preset time period, stopping the travel. By setting a preset time period simultaneously with initiating a return action, and executing a return action within the preset time period, the control method prevents damage to the battery pack from over-discharging caused by the automatic moving device continually returning, thus achieving the effects of protecting the battery pack and extending the life thereof.
    Type: Application
    Filed: February 28, 2013
    Publication date: April 16, 2015
    Inventors: Guoliang Mou, Jiaofeng Tian, Xiaochu Sheng, Hongbing Wu, Dongjing Song