US 12,278,511 B2
Battery switch on circuit and lithium battery
Ming Liu, Shanghai (CN); Lu Shi, Shanghai (CN); Jinfeng Xiang, Shanghai (CN); and Xiaoyin Cao, Shanghai (CN)
Assigned to PYLON TECHNOLOGIES, CO. LTD, Shanghai (CN)
Appl. No. 17/788,398
Filed by PYLON TECHNOLOGIES, CO. LTD, Shanghai (CN)
PCT Filed May 19, 2020, PCT No. PCT/CN2020/091100
§ 371(c)(1), (2) Date Jun. 23, 2022,
PCT Pub. No. WO2021/128711, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 201911366543.4 (CN), filed on Dec. 26, 2019; and application No. 201922381615.4 (CN), filed on Dec. 26, 2019.
Prior Publication US 2023/0025702 A1, Jan. 26, 2023
Int. Cl. H02J 7/00 (2006.01); G06F 1/26 (2006.01); G06F 1/3287 (2019.01); H03K 17/22 (2006.01)
CPC H02J 7/0063 (2013.01) [G06F 1/263 (2013.01); G06F 1/3287 (2013.01); H02J 7/0031 (2013.01); H03K 17/223 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A battery switch on circuit, comprising a communication control module, a relay, a communication control circuit, a switch, and a communication connection terminal,
the relay comprising a power input terminal, at least one common contact, at least one first contact, at least one second contact, and a coil for controlling a connection between the at least one common contact and the at least one first contact and a connection between the at least one common contact and the at least one second contact based on the voltage at the power input terminal,
wherein the communication control module comprises a communication signal terminal, connected to a first contact of the relay, wherein the at least one common contact of the relay is connected to at least one communication connection terminal of the communication connection terminal; wherein the coil of the relay is powered on by a battery power supply at the power input terminal to control a connection between the at least one common contact of the relay and the at least one first contact of the relay, and is powered down by the power input terminal to control a connection between the at least one common contact of the relay and the at least one second contact of the relay; and wherein the communication connection terminal is connected to an upper computer;
the switch comprises a first terminal, a second terminal, and a control terminal for controlling conduction or disconnection between the first terminal and the second terminal, wherein the first terminal of the switch is connected to the battery power supply, wherein the second terminal of the switch is connected to the power input terminal, and wherein after the power input terminal is powered on, the coil of the relay is powered on by the battery power supply; and
the communication control circuit comprises at least one communication input terminal and a control output terminal, wherein the at least one communication input terminal is connected to the at least one second contact of the relay, and the control output terminal is connected to the control terminal of the switch,
wherein when power on is needed, the switch is configured to receive a signal at the control terminal to cause the first terminal and the second terminal to be in conduction each other.