Patents by Inventor Jizhong Pu

Jizhong Pu 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).

  • Publication number: 20240008153
    Abstract: An LED driving circuit includes a rectifying unit, a filtering unit, a power conversion unit and a leakage protection unit. The leakage protection unit includes: a main control chip capable of detecting an impedance of a power grid and turning on or off an LED driving circuit loop depending on whether the impedance of the power grid exceeds a set value; and a first switching element arranged outside the main control chip and controlled thereby to turn on or off the LED driving circuit loop synchronously with the main control chip. The present disclosure includes the first switching element capable of turning on or turning off the LED driving circuit loop, and the first switching element is arranged independently of the main control chip, achieving shunting of the current flowing through the leakage protection unit, reducing an operating temperature of the main control chip for compatibility with high power products.
    Type: Application
    Filed: February 9, 2023
    Publication date: January 4, 2024
    Inventors: Shengjun Cao, Tiantian Xu, Jizhong Pu
  • Patent number: 11841114
    Abstract: A pluggable lamp includes a light-emitting tube body, a lamp head and a lamp seat provided at two ends of the light-emitting tube body. The light-emitting tube body includes a heat-dissipating member, a light-emitting plate and a light-transmitting cover. A first mounting groove is opened on one side of the heat-dissipating member. The light-emitting plate has a bottom side overlapped against a groove bottom of the first mounting groove. At least one lamp head pressing element is provided on one side of the lamp head facing the light-emitting tube body, and at least one lamp seat pressing element is provided on one side of the lamp seat facing the light-emitting tube body. The lamp head pressing element and the lamp seat pressing element abut against the top side of the light-emitting plate adjacent the lamp head and the top side of the light-emitting plate adjacent the lamp seat, respectively.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: December 12, 2023
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jiejiang Guo, Jizhong Pu
  • Patent number: 11770886
    Abstract: An LED driving circuit, a light tube and an illumination device are provided. The LED driving circuit includes a first AC input end, a second AC input end, a driving module, a first protection unit, a first DC output end and a second DC output end. The first protection unit includes a voltage detection subunit and an abnormality cutoff subunit, and the voltage detection subunit is connected in parallel between two corresponding voltage nodes of the driving module, and the voltage detection subunit is configured to detect a voltage value of the driving module; and the abnormality cutoff subunit is connected in series between the second input end of the driving module and the second AC input end; the first protection unit is configured to cut off a circuit of the driving module when a voltage abnormality of the driving module is detected.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: September 26, 2023
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jiaming Zhou, Jizhong Pu
  • Patent number: 11754236
    Abstract: A recessed lamp which includes a surface ring defining a light exit opening, a diffusing plate, and a light emitting assembly. The surface ring has an inner side surface, an outer side surface, and a protruding ring arranged on the inner side surface to surround the light exiting opening. The diffusing plate is positioned to abut against the inner side of the surface ring to cover the light exiting opening, and is fusion sealed to the surface ring. The light emitting assembly includes a plurality of LED lamp beads arranged on a substrate to emit light towards the light exiting opening.
    Type: Grant
    Filed: April 2, 2022
    Date of Patent: September 12, 2023
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Wenqin Ruan, Jizhong Pu, Zegang Hang
  • Publication number: 20230071769
    Abstract: A pluggable lamp includes a light-emitting tube body, a lamp head and a lamp seat provided at two ends of the light-emitting tube body. The light-emitting tube body includes a heat-dissipating member, a light-emitting plate and a light-transmitting cover. A first mounting groove is opened on one side of the heat-dissipating member. The light-emitting plate has a bottom side overlapped against a groove bottom of the first mounting groove. At least one lamp head pressing element is provided on one side of the lamp head facing the light-emitting tube body, and at least one lamp seat pressing element is provided on one side of the lamp seat facing the light-emitting tube body. The lamp head pressing element and the lamp seat pressing element abut against the top side of the light-emitting plate adjacent the lamp head and the top side of the light-emitting plate adjacent the lamp seat, respectively.
    Type: Application
    Filed: November 14, 2022
    Publication date: March 9, 2023
    Inventors: Jienjiang Guo, Jizhong Pu
  • Publication number: 20220412523
    Abstract: The present invention provides a lamp and a lamp mounting structure, wherein the lamp includes a lamp panel as a light source; two lateral supports arranged opposite to each other, wherein the lamp panel in use is fixed to a lamp supporting structure through the two lateral supports; and a locking mechanism for securing the lamp panel between the two lateral supports. The lamp disclosed herein has a better versatility.
    Type: Application
    Filed: July 27, 2021
    Publication date: December 29, 2022
    Inventors: JIZHONG PU, JIANGFENG JIANG
  • Patent number: 11536425
    Abstract: The present invention provides a lamp and a lamp mounting structure, wherein the lamp includes a lamp panel as a light source; two lateral supports arranged opposite to each other, wherein the lamp panel in use is fixed to a lamp supporting structure through the two lateral supports; and a locking mechanism for securing the lamp panel between the two lateral supports. The lamp disclosed herein has a better versatility.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: December 27, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jizhong Pu, Jiangfeng Jiang
  • Patent number: 11530787
    Abstract: A collapse preventing lamp including a lamp panel and a lamp frame, wherein the lamp panel as a light source is installed in the lamp frame, and wherein a gap is defined between at least one side edge of the lamp panel and an edge of the lamp frame; and a baffle for shielding the gap is provided which is overlapped on the lamp frame, and the baffle is provided with an anti-collapse member for supporting a corresponding side edge of the lamp panel.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: December 20, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jizhong Pu, Jiangfeng Jiang
  • Publication number: 20220325858
    Abstract: Disclosed is a recessed lamp which includes a surface ring, a diffusing plate and a light emitting assembly, wherein the surface ring is provided with a light exiting opening and has an inner side surface and an outer side surface, and a protruding ring surrounding the light exiting opening is arranged on the inner side surface; the diffusing plate abuts against the inner side of the surface ring to cover the light exiting opening and is fusion sealed to the surface ring; and the light emitting assembly includes a substrate and LED lamp beads arranged on the substrate to emit light towards the light exiting opening.
    Type: Application
    Filed: April 2, 2022
    Publication date: October 13, 2022
    Inventors: WENQIN RUAN, JIZHONG PU, ZEGANG HANG
  • Patent number: 11437845
    Abstract: The present disclosure provides an LED straight light including a light tube with two pins at both ends, an LED installed in the light tube and a driving circuit. The driving circuit includes a mains branch and a signal branch. The mains branch is coupled to the pins at one end of the light tube for transmitting power to the LED for power supply. The signal branch is coupled to the pins at the other end of the light tube for transmitting external driving signals to control the on/off of the mains branch. The LED straight light of the present disclosure is powered by two ends, one of the two ends supplies power to the LED through the mains branch, and the other end receives driving signals to control the on/off of the mains branch.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: September 6, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jun Zhou, Jizhong Pu
  • Patent number: 11435061
    Abstract: A direct-lit panel light including a frame, a diffusion plate, a back plate and at least one light bar. The frame comprises a plurality of frame bars that are connected end-to-end, each frame bar having a first mounting surface and a second mounting surface; the diffusion plate is overlapped on the first mounting surface, the back plate is overlapped on the second mounting surface, and the center area of the back plate is fixed with the at least one light bar, and the edge area of the back plate is deformed and forms first convex ribs extending along peripheral sides of the back plate, and the first convex ribs abut against the diffusion plate and press it against the first mounting surface, and the first convex rib on each peripheral side of the back plate has a height gradually increasing from the middle thereof towards two ends thereof, respectively.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: September 6, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Junyu Zhang, Zegang Hang, Jizhong Pu
  • Patent number: 11412589
    Abstract: The invention provides a dimmable lighting apparatus, comprising a lamp body, and a driving circuit and a light emitting circuit in the lamp body. The driving circuit is configured to drive the light emitting circuit to emit light, and the driving circuit includes an input sub-circuit coupled to a mains and a dimming sub-circuit coupled to an external dimmer, the input sub-circuit, and the light emitting circuit. In particular, the input sub-circuit is grounded in a pre-stage manner, and the dimming sub-circuit is grounded in a post-stage manner.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: August 9, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Shengjun Cao, Jizhong Pu
  • Publication number: 20220240361
    Abstract: An LED driving circuit, a light tube and an illumination device are provided. The LED driving circuit includes a first AC input end, a second AC input end, a driving module, a first protection unit, a first DC output end and a second DC output end. The first protection unit includes a voltage detection subunit and an abnormality cutoff subunit, and the voltage detection subunit is connected in parallel between two corresponding voltage nodes of the driving module, and the voltage detection subunit is configured to detect a voltage value of the driving module; and the abnormality cutoff subunit is connected in series between the second input end of the driving module and the second AC input end; the first protection unit is configured to cut off a circuit of the driving module when a voltage abnormality of the driving module is detected.
    Type: Application
    Filed: March 8, 2021
    Publication date: July 28, 2022
    Inventors: JIAMING ZHOU, JIZHONG PU
  • Patent number: 11388793
    Abstract: The present invention provides a dimmable lighting apparatus, comprising a light emitting circuit and a driving circuit coupled with the light emitting circuit. The driving circuit comprises a rectifier module, a filtering module coupled between the light emitting circuit and the rectifier module, a constant current module coupled between the filtering module and the light emitting circuit, and a dimming module. In particular, the dimming module is configured to receive a driving signal supplied to the light emitting circuit from the constant current module, and feed the driving signal back to the constant current module to adjust an output power of the constant current module.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: July 12, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Shengjun Cao, Jizhong Pu
  • Publication number: 20220136680
    Abstract: A direct-lit panel light including a frame, a diffusion plate, a back plate and at least one light bar. The frame comprises a plurality of frame bars that are connected end-to-end, each frame bar having a first mounting surface and a second mounting surface; the diffusion plate is overlapped on the first mounting surface, the back plate is overlapped on the second mounting surface, and the center area of the back plate is fixed with the at least one light bar, and the edge area of the back plate is deformed and forms first convex ribs extending along peripheral sides of the back plate, and the first convex ribs abut against the diffusion plate and press it against the first mounting surface, and the first convex rib on each peripheral side of the back plate has a height gradually increasing from the middle thereof towards two ends thereof, respectively.
    Type: Application
    Filed: February 9, 2021
    Publication date: May 5, 2022
    Inventors: Junyu Zhang, Zegang Hang, Jizhong Pu
  • Patent number: 11313545
    Abstract: The application discloses a direct-type panel lamp with adjustable light emitting function, which comprises a frame, a diffusion plate, a back plate and at least one light bar; a central area of the back plate is arched to form a chamber for accommodating the light bar; the diffusion plate has a light-transmitting function, which is disposed opposite to the back plate to close the chamber; the frame is formed by connecting a plurality of frame bars, with each frame bar being connected to corresponding edges of the diffusion plate and the back plate; for the same light bar, the LED beads comprise a plurality of first LED beads and a plurality of second LED beads, and wherein the first LED beads and the second LED beads are alternately arranged, and the brightness or color temperature of the first and second LED beads are different.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: April 26, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jiangfeng Jiang, Jizhong Pu
  • Patent number: 11316364
    Abstract: The present disclosure provides an LED straight light including a light tube with two pins at both ends, an LED installed in the light tube and a driving circuit. The driving circuit includes a mains branch and a signal branch. The mains branch is coupled to the pins at one end of the light tube for transmitting power to the LED for power supply. The signal branch is coupled to the pins at the other end of the light tube for transmitting external driving signals to control the on/off of the mains branch. The LED straight light of the present disclosure is powered by two ends, one of the two ends supplies power to the LED through the mains branch, and the other end receives driving signals to control the on/off of the mains branch.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: April 26, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jun Zhou, Jizhong Pu
  • Patent number: 11287120
    Abstract: A direct-type panel lamp with a driving box and a package structure, including a frame, a diffusion plate, a back plate, a driving box and a lamp strip. A central region of the back plate bulges to form a chamber for accommodating the lamp strip. The chamber includes a flat bottom wall and inclined side walls. The diffusion plate is arranged opposite to the back plate to close the chamber. The frame is formed by connecting a number of frame strips, each frame strip is connected with respective edges of the diffusion plate and the back plate. The driving box is configured to receive a driving module electrically connected to the lamp strip. The driving box includes a box body with an opening and a top cove buckled over the opening. The box body has a through hole for wire through which a connecting wire of the driving module passes.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: March 29, 2022
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jiangfeng Jiang, Jizhong Pu
  • Publication number: 20220039227
    Abstract: The present invention provides a dimmable lighting apparatus, comprising a light emitting circuit and a driving circuit coupled with the light emitting circuit. The driving circuit comprises a rectifier module, a filtering module coupled between the light emitting circuit and the rectifier module, a constant current module coupled between the filtering module and the light emitting circuit, and a dimming module. In particular, the dimming module is configured to receive a driving signal supplied to the light emitting circuit from the constant current module, and feed the driving signal back to the constant current module to adjust an output power of the constant current module.
    Type: Application
    Filed: June 28, 2021
    Publication date: February 3, 2022
    Inventors: Shengjun Cao, Jizhong Pu
  • Publication number: 20220030679
    Abstract: The invention provides a dimmable lighting apparatus, comprising a lamp body, and a driving circuit and a light emitting circuit in the lamp body. The driving circuit is configured to drive the light emitting circuit to emit light, and the driving circuit includes an input sub-circuit coupled to a mains and a dimming sub-circuit coupled to an external dimmer, the input sub-circuit, and the light emitting circuit. In particular, the input sub-circuit is grounded in a pre-stage manner, and the dimming sub-circuit is grounded in a post-stage manner.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 27, 2022
    Inventors: SHENGJUN CAO, JIZHONG PU