US 12,266,911 B2
Inverter junction box
Xiang Zhao, Beijing (CN); Hao Zhang, Beijing (CN); and Gabriel Gallegos Lopez, Beijing (CN)
Assigned to JING-JIN ELECTRIC TECHNOLOGIES CO., LTD., Beijing (CN)
Appl. No. 17/997,845
Filed by Jing-Jin Electric Technologies Co., Ltd., Beijing (CN)
PCT Filed Feb. 5, 2021, PCT No. PCT/CN2021/075551
§ 371(c)(1), (2) Date Nov. 3, 2022,
PCT Pub. No. WO2021/244062, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 202020979078.3 (CN), filed on Jun. 2, 2020.
Prior Publication US 2023/0170680 A1, Jun. 1, 2023
Int. Cl. H02G 3/08 (2006.01); H01R 9/24 (2006.01); H01R 13/713 (2006.01); H02M 7/00 (2006.01)
CPC H02G 3/085 (2013.01) [H01R 9/24 (2013.01); H01R 13/713 (2013.01); H02M 7/003 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An inverter junction box comprising:
a casing;
a cover plate that is detachably connected with a top part of the casing;
a knockout pin having a first end that is detachably connected with a bottom part of the cover plate, and a second end configured to abut against a protection device on an inverter; and
a high-voltage busbar terminal that includes an insulating body and two conductive columns that are respectively inserted in the insulating body,
wherein:
one side of the casing includes a connecting part that is connected with an external cable, and
a bottom part of the casing is a hollow structure and abuts against an incoming terminal of the inverter,
in a first orientation of the inverter junction box, the incoming terminal of the inverter is connected to the external cable via the two conductive columns of the high-voltage busbar terminal,
in a second orientation of the inverter junction box, the external cable is directly connected with the incoming terminal of the inverter after entering the inverter junction box and does not use the high-voltage busbar terminal, and
when the knockout pin abuts against the protection device, high-voltage protection will not be triggered, when the cover plate of the inverter junction box is opened, so that the knockout pin is fixedly connected with the cover plate and separated from the protection device, the high-voltage protection will be triggered.