US 12,083,910 B1
Device for adjusting polarities of vehicle clamps and starting system
Jing Lu, Guangdong (CN)
Assigned to SHENZHEN DOMORE TECHNOLOGY LTD, Shenzhen (CN)
Filed by SHENZHEN DOMORE TECHNOLOGY LTD, Guangdong (CN)
Filed on Apr. 8, 2024, as Appl. No. 18/629,869.
Claims priority of application No. 202420266356.9 (CN), filed on Feb. 2, 2024.
Int. Cl. H02J 7/00 (2006.01); B60L 53/16 (2019.01); H02J 7/02 (2016.01); H02J 7/14 (2006.01)
CPC B60L 53/16 (2019.02) [H02J 7/02 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A device for adjusting positive and negative polarities of clamps for vehicle charging, comprising: a polarity determining module, a polarity conversion module having a first input and two outputs, a first clamp and a second clamp;
wherein the polarity determining module comprises a first resistor, a second resistor, a third resistor, a fourth resistor and a Microcontroller unit (MCU), wherein an eighth pin of the MCU is connected to one end of the second resistor and one end of the fourth resistor respectively, an other end of the fourth resistor is configured to connect to a negative electrode of an external power supply, and an other end of the second resistor is connected to the first input of the polarity conversion module, the other end of the second resistor is further configured to connect to a positive electrode of the external power supply, an eleventh pin of the MCU is respectively connected to one end of the first resistor and one end of the third resistor, an other end of the third resistor is configured to connect to the negative electrode of the external power supply, and an other end of the first resistor is connected to the second clamp;
wherein the polarity determining module is configured to determine positive and negative polarities of two electrodes of a vehicle battery to which the first clamp and the second clamp are respectively connected;
wherein the polarity conversion module further includes a second input, a third input and a fourth input respectively connected to different pins of the MCU, and the two outputs of the polarity conversion module are both connected to the first clamp and to the second clamp;
wherein the polarity conversion module is configured to control the positive and negative polarities adjustment according to the determining result of the polarity determining module so that the first clamp and the second clamp are respectively connected with the positive electrode and the negative electrode of the external power supply and circuits are turned on for vehicle charging, or the first clamp and the second clamp are respectively connected with the negative electrode and the positive electrode of the external power supply and circuits are turned on for vehicle charging; and
wherein the first clamp and the second clamp are configured to connect to the two electrodes of the vehicle battery respectively.