US 12,003,100 B2
Jumper cable, starting power supply and jump start device
Chunyi Zhu, Shenzhen (CN); and Maolin Liang, Shenzhen (CN)
Assigned to Shenzhen Caross Co., Ltd, Shenzhen (CN)
Filed by SHENZHEN CAROSS CO., LTD, Shenzhen (CN)
Filed on Sep. 13, 2022, as Appl. No. 17/943,228.
Application 17/943,228 is a continuation of application No. 17/683,223, filed on Feb. 28, 2022, granted, now 11,482,860.
Claims priority of application No. 202111555269.2 (CN), filed on Dec. 17, 2021.
Prior Publication US 2023/0198255 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 1/10 (2006.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01)
CPC H02J 1/122 (2020.01) [H02J 7/0034 (2013.01); H02J 7/00711 (2020.01); H02J 7/342 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A jumper cable, comprising:
a first input terminal configured to be electrically connected with a positive electrode of a starting power supply; a second input terminal configured to be electrically connected with a negative electrode of the starting power supply; a first clamp configured to be clamped to a positive electrode of a vehicle battery; and a second clamp configured to be clamped to a negative electrode of the vehicle battery; wherein the second input terminal and the second clamp are electrically connected;
a switching device having a controlling terminal, wherein the first input terminal and the first clamp are electrically connected through the switching device; and
a controlling circuit electrically connected with the controlling terminal of the switching device, and configured to control the switching device to be switched on when the first clamp and the second clamp are properly connected to the electrodes of the vehicle battery such that a path is formed between the starting power supply and the vehicle battery; and configured to not control the switching device to be switched on when the first clamp and the second clamp are reversely connected to the electrodes of the vehicle battery such that no path is formed between the starting power supply and the vehicle battery; wherein the controlling circuit does not include a MCU,
wherein, the controlling circuit further comprises a triggering terminal, the triggering terminal is connected in circuit between the first clamp and the switching device; when the first clamp and the second clamp are properly connected to the electrodes of the vehicle battery, the triggering terminal gets electricity from the positive electrode of the vehicle battery through the first clamp, the controlling circuit is triggered to control the switching device to be switched on; and when the first clamp and the second clamp are reversely connected to the electrodes of the vehicle battery, the triggering terminal is unable to get electricity from the first clamp which is connected to the negative electrode of the vehicle battery, the controlling circuit is not triggered and fails to control the switching device to be switched on.