US 12,325,087 B2
Portable spot welder
Xiaowei Huang, Hunan (CN)
Assigned to Shenzhen Jueqi Technology Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Jueqi Technology Co., Ltd., Guangdong (CN)
Filed on May 19, 2022, as Appl. No. 17/748,202.
Claims priority of application No. 202121960561.8 (CN), filed on Aug. 19, 2021.
Prior Publication US 2023/0055533 A1, Feb. 23, 2023
Int. Cl. B23K 3/03 (2006.01); B23K 37/02 (2006.01)
CPC B23K 3/0323 (2013.01) [B23K 3/0338 (2013.01); B23K 37/0205 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A portable spot welder, comprising: a control board, a logic chip being arranged on the control board;
a battery, the battery being electrically connected to the control board;
an analog-to-digital converter (ADC) detection module, the ADC detection module being electrically connected to the control board;
a light emitting diode (LED) module, the LED module being electrically connected to the control board;
a key module, the key module being electrically connected to the control board;
a power metal oxide semiconductor (MOS) module, the power MOS module being electrically connected to the battery, and being used for adjusting output power;
an optical-coupler isolation driving module, the optical-coupler isolation driving module being electrically connected to the power MOS module and the control board;
a battery protection module, the battery protection module being electrically connected to the battery and the control board, and being used for performing overcharge, overdischarge, overcurrent and short-circuit protection on the battery;
a power supply module, the power supply module being electrically connected to the battery protection module and the control board, and being provided with a charging interface and a discharging interface; and
a soldering iron module, the soldering iron module being electrically connected to the battery protection module, and being provided with spot welding pen interfaces, wherein
the ADC detection module is used for detecting the battery, the power supply module and the soldering iron module and feeding data back to the control board.