Battery heating circuits and methods using resonance components in series
First Claim
1. A circuit for heating a battery, the circuit comprising:
- the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery;
a switch unit;
a switching control component coupled to the switch unit; and
a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit;
wherein;
the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and
the switching control component is configured to turn on the switch unit so as to allow a current to flow between the battery and the first charge storage component and to turn off the switch unit so as to stop the current;
wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery.
3 Assignments
0 Petitions
Accused Products
Abstract
Certain embodiments of the present invention provide a battery heating circuit, comprising a switch unit 1, a switching control module 100, a damping component R1, and an energy storage circuit, wherein: the energy storage circuit is connected with the battery and comprises a current storage component L1 and a charge storage component C1; the damping component R1, the switch unit 1, the current storage component L1 and the charge storage component C1 are connected in series; the switching control module 100 is connected with the switch unit 1 and is configured to control ON/OFF of the switch unit 1, so as to control the energy flowing between the battery and the energy storage circuit. For example, the heating circuit can improve the charge/discharge performance of the battery, improve safety when the battery is heated, and effectively protect the battery.
76 Citations
23 Claims
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1. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery; a switch unit; a switching control component coupled to the switch unit; and a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and the switching control component is configured to turn on the switch unit so as to allow a current to flow between the battery and the first charge storage component and to turn off the switch unit so as to stop the current; wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery. - View Dependent Claims (2, 3, 4, 9)
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5. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery; a switch unit; a switching control component coupled to the switch unit; a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; and an energy consumption unit coupled to the first charge storage component and configured to consume energy stored in the first charge storage component after the switch unit is turned on and then turned off; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and the switching control component is configured to turn on and off the switch unit so as to control a current flowing between the battery and the first charge storage component; wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery; and wherein the switch unit and the switching control component are configured to allow the current to flow from the battery to the first charge storage component if the switch unit is turned on, but never allow the current to flow from the first charge storage component to the battery. - View Dependent Claims (6, 7, 8)
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10. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery; a switch unit; a switching control component coupled to the switch unit; a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; and an energy consumption unit connected to the first charge storage component and configured to consume energy stored in the first charge storage component after the switch unit is turned on and then turned off; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and the switching control component is configured to turn on and off the switch unit so as to control a current flowing between the battery and the first charge storage component; wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery; and wherein the switching control component is configured to turn on the switch unit and allow the current to flow from the battery to the first charge storage component and to flow from the first charge storage component to the battery. - View Dependent Claims (11, 12, 13)
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14. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery; a switch unit; a switching control component coupled to the switch unit; and a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and the switching control component is configured to turn on and off the switch unit so as to control a current flowing between the battery and the first charge storage component; wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery; wherein the switching control component is configured to turn on the switch unit and allow the current to flow from the battery to the first charge storage component and to flow from the first charge storage component to the battery; and wherein the switch unit includes a two-way switch.
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15. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery; a switch unit; a switching control component coupled to the switch unit; and a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and the switching control component is configured to turn on and off the switch unit so as to control a current flowing between the battery and the first charge storage component; wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery; wherein the switching control component is configured to turn on the switch unit and allow the current to flow from the battery to the first charge storage component and to flow from the first charge storage component to the battery; and wherein the switch unit includes a first branch circuit for conduction in a first direction and a second branch circuit for conduction in a second direction, the first direction being from the battery to the first charge storage component, the second direction being from the first charge storage component to the battery. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery; a switch unit; a switching control component coupled to the switch unit; and a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and the switching control component is configured to turn on and off the switch unit so as to control a current flowing between the battery and the first charge storage component; wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery; wherein the switching control component is configured to turn on the switch unit and allow the current to flow from the battery to the first charge storage component and to flow from the first charge storage component to the battery; and wherein the switch unit includes; a first two-way switch coupled to the switch control unit; and a second two-way switch coupled to the switch control unit and connected in series with the first two-way switch; wherein the switch control unit is further configured to turn on and off the first two-way switch and to turn on and off the second two-way switch.
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22. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery; a switch unit; a switching control component coupled to the switch unit; and a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and the switching control component is configured to turn on and off the switch unit so as to control a current flowing between the battery and the first charge storage component; wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery; and wherein the switching control component is configured to; turn on the switch unit to allow the current to flow between the battery and the first charge storage component; and then, turn off the switch unit when or after the current decreases to zero in magnitude.
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23. A circuit for heating a battery, the circuit comprising:
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the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery; a switch unit; a switching control component coupled to the switch unit; and a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; wherein; the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected in series; and the switching control component is configured to turn on and off the switch unit so as to control a current flowing between the battery and the first charge storage component; and wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery, and is further configured to; start heating the battery if at least one heating start condition is satisfied; and stop heating the battery if at least one heating stop condition is satisfied.
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Specification