Patents by Inventor Tiantian Hu
Tiantian Hu 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).
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Patent number: 11970812Abstract: A driving system having a hollow shaft, a solid shaft arranged in the hollow shaft, a stator, a rotor connected to the hollow shaft, a clutch mechanism selectively engaged to one of the stator and the rotor, and a speed reduction mechanism having a planetary carrier assembly engaged to the clutch mechanism, and a planetary gear train connected between the solid shaft and the rotor, wherein where the clutch mechanism is engaged to the stator in a transmission manner, the planetary carrier assembly is connected with the stator, and the rotor drives the solid shaft and the hollow shaft to operate at a differential speed, and where the clutch mechanism is engaged to the rotor in the transmission manner, the planetary carrier assembly is connected with the rotor, and the rotor drives the solid shaft and the hollow shaft to operate at a same speed by the planetary gear train.Type: GrantFiled: October 26, 2020Date of Patent: April 30, 2024Assignees: GUANGDONG WELLING MOTOR MANUFACTURING CO., LTD., MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.Inventors: Yiming Hu, Tiantian Yan, Ping Li, Di Wu, Jintao Chen
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Patent number: 11955876Abstract: An electrical fan and an electric appliance are provided. The fans has a driving structure, an impeller, a wind hood and a diffuser. The impeller has a cover plate installed on the driving structure. The wind hood is covered on the impeller and has an air inlet and an air outlet communicated to each other. The diffuser is located at one end of the impeller facing the air outlet. The diffuser has a first protrusion connected to the driving structure. The first protrusion protrudes in a direction of the wind hood. The diameter of an end of the first protrusion adjacent the cover plate is smaller than the diameter of an end away from the cover plate. The diffuser has an inner ring arm connected to the first protrusion and an outer ring arm sleeved outside the inner ring arm.Type: GrantFiled: November 5, 2021Date of Patent: April 9, 2024Assignee: MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.Inventors: Tiantian Yan, Yiming Hu
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Patent number: 11947078Abstract: A camera optical lens is provided. The camera optical lens includes, from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The camera optical lens satisfies the following conditions: 0.90?f1/f?2.00; and 2.50?d13/d14?12.00, where f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, d13 denotes an on-axis thickness of the seventh lens, and d14 denotes an on-axis distance from an image side surface of the seventh lens to an object side surface of the eighth lens. The camera optical lens according to the present invention has better optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.Type: GrantFiled: December 25, 2020Date of Patent: April 2, 2024Assignee: Changzhou Raytech Optronics Co., Ltd.Inventor: Tiantian Hu
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Publication number: 20240091892Abstract: The present disclosure discloses a rolling ring shrink fitting tool for rotary equipment, including a lifting frame; a movement slot is formed in a bottom surface of a top of the lifting frame; an output end of a first motor is connected with a main gear; guide rollers are embedded in a lifting seat through bearings; shrink fitting plates are two semicircular structures; lifting lugs are welded on outer sides of the shrink fitting plates; tooth rings are arranged outside the shrink fitting plates; stop rods are fixed on inner walls of the tooth rings; supporting screw rods are embedded at sunken positions on inner walls of the shrink fitting plates through bearings.Type: ApplicationFiled: November 27, 2023Publication date: March 21, 2024Inventors: Le LI, Rui YANG, Huaijun JI, Qianbiao XU, Haoji DENG, Yongjie SUN, Hong YANG, Yincheng ZHOU, Bo HU, Jie REN, Lie WANG, Longfei MIAO, Hansi BAI, Tiantian HU, Jinxin ZHAO, Yizhuan QIAN, Changbao CHEN, Xingzheng YANG, Xiaoli GUO, Lihui DU
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Patent number: 11926004Abstract: The present disclosure discloses a rolling ring shrink fitting tool for rotary equipment, including a lifting frame; a movement slot is formed in a bottom surface of a top of the lifting frame; an output end of a first motor is connected with a main gear; guide rollers are embedded in a lifting seat through bearings; shrink fitting plates are two semicircular structures; lifting lugs are welded on outer sides of the shrink fitting plates; tooth rings are arranged outside the shrink fitting plates; stop rods are fixed on inner walls of the tooth rings; supporting screw rods are embedded at sunken positions on inner walls of the shrink fitting plates through bearings.Type: GrantFiled: November 27, 2023Date of Patent: March 12, 2024Assignee: ZHONGJIAN WUZHOU ENGINEERING EQUIPMENT CO., LTDInventors: Le Li, Rui Yang, Huaijun Ji, Qianbiao Xu, Haoji Deng, Yongjie Sun, Hong Yang, Yincheng Zhou, Bo Hu, Jie Ren, Lie Wang, Longfei Miao, Hansi Bai, Tiantian Hu, Jinxin Zhao, Yizhuan Qian, Changbao Chen, Xingzheng Yang, Xiaoli Guo, Lihui Du
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Patent number: 11662553Abstract: Provided is a camera optical lens, including first to fifth lenses. The camera optical lens satisfies: ?3.50?f2/f??1.50; 10.00?d1/d2?35.00; 1.80?(R5+R6)/(R5?R6)?8.00; R9/d9??15.00; and ?30.00?R2/R1??10.00, where f denotes a focal length of the camera optical lens; f2 denotes a focal length of the second lens; d1 denotes an on-axis thickness of the first lens; d2 denotes an on-axis distance from an image side surface of the first lens to an object side surface of the second lens; R5 and R6 denote curvature radiuses of an object side surface and an image side surface of the third lens, respectively; d9 denotes an on-axis thickness of the fifth lens; and R1 and R2 denote curvature radiuses of an object side surface and the image side surface of the first lens. The camera optical lens has good optical performance and satisfies the requirement for ultra-thin design.Type: GrantFiled: December 23, 2020Date of Patent: May 30, 2023Assignee: AAC Optics (Changzhou) Co., Ltd.Inventor: Tiantian Hu
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Publication number: 20220075146Abstract: A camera optical lens is provided. The camera optical lens includes, from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The camera optical lens satisfies following conditions: 0.90?f1/f?2.00; and 2.50?d13/d14?12.00, where f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, d13 denotes an on-axis thickness of the seventh lens is defined as d13, and d14 denotes an on-axis distance from an image side surface of the seventh lens to an object side surface of the eighth lens. The camera optical lens according to the present invention has better optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.Type: ApplicationFiled: December 25, 2020Publication date: March 10, 2022Inventor: Tiantian Hu
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Publication number: 20210263280Abstract: Provided is a camera optical lens, including first to fifth lenses. The camera optical lens satisfies: ?3.50?f2/f??1.50; 10.00?d1/d2?35.00; 1.80?(R5+R6)/(R5?R6)?8.00; R9/d9??15.00; and ?30.00?R2/R1??10.00, where f denotes a focal length of the camera optical lens; f2 denotes a focal length of the second lens; d1 denotes an on-axis thickness of the first lens; d2 denotes an on-axis distance from an image side surface of the first lens to an object side surface of the second lens; R5 and R6 denote curvature radiuses of an object side surface and an image side surface of the third lens, respectively; d9 denotes an on-axis thickness of the fifth lens; and R1 and R2 denote curvature radiuses of an object side surface and the image side surface of the first lens. The camera optical lens has good optical performance and satisfies the requirement for ultra-thin design.Type: ApplicationFiled: December 23, 2020Publication date: August 26, 2021Inventor: Tiantian Hu