Circuits and methods for heating batteries in parallel using resonance components in series
First Claim
1. A circuit for heating a first battery and a second battery, the circuit comprising:
- the first 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 first battery;
the second battery including a second damping component and a second current storage component, the second damping component and the second current storage component being parasitic to the second battery;
a first switch unit;
a second switch unit;
a switching control component coupled to the first switch unit and the second switch unit; and
a first energy storage component including a first storage terminal and a second storage terminal, the first storage terminal being coupled to a first negative terminal of the first battery through the first switch unit, the second storage terminal being coupled to a second negative terminal of the second battery through the second switch unit;
wherein;
the first battery, the first switch unit, and the first energy storage component are connected to form a first charging and discharging circuit; and
the second battery, the second switch unit, and the first energy storage component are connected to form a second charging and discharging circuit;
wherein;
the switching control component is configured to turn on the first switch unit and the second switch unit alternately so as to control a first current flowing between the first battery and the first energy storage component and a second current flowing between the second battery and the first energy storage component; and
the circuit for heating the first battery and the second battery is configured to heat the first battery and the second battery by at least discharging the first battery and discharging the second battery.
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Accused Products
Abstract
Certain embodiments of the present invention provide a battery heating circuit, wherein: the battery comprises a first battery and a second battery; the heating circuit comprises a first switch unit, a second switch unit, a damping component R1, a damping component R2, a current storage component L3, a current storage component L4, a switching control module and an energy storage component V1; the first battery, the damping component R1, the current storage component L3, the energy storage component V1 and the first switch unit are connected in series to constitute a first charging/discharging circuit; the second battery, the damping component R2, the current storage component L4, the energy storage component V1 and the second switch unit are connected in series to constitute a second charging/discharging circuit.
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Citations
20 Claims
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1. A circuit for heating a first battery and a second battery, the circuit comprising:
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the first 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 first battery; the second battery including a second damping component and a second current storage component, the second damping component and the second current storage component being parasitic to the second battery; a first switch unit; a second switch unit; a switching control component coupled to the first switch unit and the second switch unit; and a first energy storage component including a first storage terminal and a second storage terminal, the first storage terminal being coupled to a first negative terminal of the first battery through the first switch unit, the second storage terminal being coupled to a second negative terminal of the second battery through the second switch unit; wherein; the first battery, the first switch unit, and the first energy storage component are connected to form a first charging and discharging circuit; and the second battery, the second switch unit, and the first energy storage component are connected to form a second charging and discharging circuit; wherein; the switching control component is configured to turn on the first switch unit and the second switch unit alternately so as to control a first current flowing between the first battery and the first energy storage component and a second current flowing between the second battery and the first energy storage component; and the circuit for heating the first battery and the second battery is configured to heat the first battery and the second battery by at least discharging the first battery and discharging the second battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification