# US 11,451,078 B2 · Electric tool power supply having vehicle starting function > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,451,078 B2 - Document ID: US11451078B2 - Status: Granted - Kind: B2 - Application number: 17/291,223 - Filed: 2019-05-08 - Published: 2021-12-02 - Granted: 2022-09-20 - Earliest claimed: 2018-11-13 - Assignees: Shenzhen Carku Technology Co., Limited - Applicants: Shenzhen Carku Technology Co., Limited - Inventors: Yun Lei - Web page: https://patentgrep.com/patent/US11451078B2 ## CPC - H02J 1/122: {Provisions for temporary connection of DC sources of essentially the same voltage, e.g. jumpstart cables} - H02J 7/855: {with circuits adapted for supplying loads from the battery} - F02N 11/12: Starting of engines by means of mobile, e.g. portable, starting sets - F02N 11/14: Starting of engines by means of electric starters with external current supply (F02N11/12 takes precedence) - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H01M 10/4257: {Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries} - H01M 10/441: {for several batteries or cells simultaneously or sequentially} - H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H02J 1/082: DC supplies with two or more different DC voltage levels - H02J 7/52: for charge balancing, e.g. equalisation of charge between batteries - H02J 7/575: {Parallel/serial switching of connection of batteries to charge or load circuit} - H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing} - H01M 2010/4278: {Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller} - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - H02J 2105/33: exchanging power with road vehicles - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - F02N: STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract The present disclosure discloses an electric tool power supply having a vehicle starting function. The electric tool power supply comprises a power supply component, a first output interface, and a second output interface. The power supply component is configured to store and provide electrical energy. The first output interface is electrically coupled to the power supply component. The power supply component is configured to provide operating voltage for an electric tool through the first output interface when the electric tool power supply is installed on the electric tool. The second output interface is electrically coupled to the power supply component. The power supply component is configured to output instantaneous large-current to a starter of a vehicle through the second output interface when the electric tool power supply is installed on the vehicle, so as to start the starter. ## Claims ### Claim 1 An electric tool power supply having a vehicle starting function comprising: a power supply component, configured to store and provide electrical energy; a first output interface, electrically coupled to the power supply component, wherein the power supply component is configured to provide operating voltage for an electric tool through the first output interface when the electric tool power supply is installed on the electric tool; and a second output interface, electrically coupled to the power supply component, wherein the power supply component is configured to output instantaneous large-current to a starter of a vehicle through the second output interface when the electric tool power supply is installed on the vehicle, so as to start the starter. ### Claim 2 (depends on 1) The electric tool power supply of claim 1, wherein the power supply component comprises a common terminal, a first output terminal, a second output terminal, a first battery pack, and a second battery pack, wherein the first battery pack and the second battery pack are coupled in series; wherein the first battery pack is electrically coupled between the common terminal and the second output terminal, and the second battery pack is electrically coupled between the first output terminal and the second output terminal; the first output interface comprises two first connection terminals, wherein the two first connection terminals are electrically coupled to the common terminal and the first output terminal in a one-to-one correspondence; and the second output interface comprises two second connection terminals, wherein the two second connection terminals are electrically coupled to the common terminal and the second output terminal in a one-to-one correspondence. ### Claim 3 (depends on 2) The electric tool power supply of claim 2, wherein the first battery pack comprises a plurality of battery modules coupled in series, and the second battery pack comprises at least one battery module. ### Claim 4 (depends on 3) The electric tool power supply of claim 3, wherein the first battery pack comprises four battery modules coupled in series, and the second battery pack comprises one battery module. ### Claim 5 (depends on 3) The electric tool power supply of claim 3, wherein each battery module comprises one or more energy storage units, wherein the energy storage unit comprises one of a lead-acid battery, a nickel-hydrogen battery, a lithium iron phosphate battery, a lithium cobalt oxide battery, a lithium titanate battery, a super capacitor power battery, a lithium-ion capacitor, and a ternary polymer lithium battery. ### Claim 6 (depends on 5) The electric tool power supply of claim 5, wherein when the battery module comprises a plurality of energy storage units, the plurality of energy storage units of the battery module are coupled in series or in parallel. ### Claim 7 (depends on 3) The electric tool power supply of claim 3, further comprising: an equalization module, comprising a plurality of equalization units, wherein the plurality of equalization units are electrically coupled to output terminals of the plurality of battery modules of the power supply component one by one; and a control module, electrically coupled to each equalization unit for controlling an operating state of each equalization unit; wherein when the voltage of one or more battery modules in the power supply component is higher than that of other battery modules in the power supply component, the control module turns on the equalization unit coupled to the battery module having the higher voltage, so as to perform equalization control on the voltage of the battery module having the higher voltage. ### Claim 8 (depends on 7) The electric tool power supply of claim 7, wherein the equalization unit is configured to control its corresponding battery module to discharge when the equalization unit is turned on; the control module is configured to control the equalization module to perform equalization control on the voltage of the battery module having the higher voltage during a charging process of the power supply component. ### Claim 9 (depends on 7) The electric tool power supply of claim 7, wherein when the control module detects that the voltage of the battery module having the higher voltage is equal to that of the other battery modules in the power supply component, the control module controls the corresponding equalization unit to stop working. ### Claim 10 (depends on 2) The electric tool power supply of claim 2, further comprising a conversion module electrically coupled between the second output terminal of the power supply component and one of the second connection terminals of the second output interface, wherein the conversion module is configured to convert the electric energy output by the power supply component into instantaneous large-current when receiving a starting signal, and output the instantaneous large-current to the starter through the second output interface, to enable the starter to start the vehicle.