Temperature raising device
AssigneeHonda Motor Co., Ltd.
InventorYasumichi Onuki
Life of this patent
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Abstract
The present invention includes an AC generation circuit which is configured to be connected to a secondary battery having characteristics in which a resistance component of an impedance of the secondary battery decreases as a frequency of an alternating current flowing in the secondary battery rises from a low frequency and the resistance component increases as the frequency moves to a high frequency side from a frequency at which the resistance component is minimized and to raise the temperature of the secondary battery by circulating an alternating current at a frequency in a high frequency band higher than the frequency at which the resistance component is minimized in the secondary battery.
Claims11
A temperature raising device comprising:
- an AC generation circuit which is configured to be connected to both ends of a secondary battery having characteristics in which a resistance component of an impedance of the secondary battery decreases as a frequency of an alternating current flowing in the secondary battery rises from a low frequency and the resistance component increases as the frequency moves to a high frequency side from a frequency at which the resistance component is minimized and to raise a temperature of the secondary battery by circulating an alternating current at a frequency in a high frequency band higher than the frequency at which the resistance component is minimized in the secondary battery.
A temperature raising device comprising:
- an AC generation circuit which is configured to be connected to both ends of a secondary battery and to internally have a capacitor element,
- wherein the AC generation circuit raises a temperature of the secondary battery by circulating an alternating current, which is amplified by resonating an inductance element of the secondary battery and the capacitor element with each other in a high frequency band higher than a frequency at which a resistance component of an impedance of the secondary battery is minimized, in the secondary battery.
A temperature raising device comprising:
- an AC generation circuit that includes a first circuit, a second circuit, and a third circuit,
- the first circuit having a first capacitor and a first switch connected to each other in series, the second circuit having a second switch and a second capacitor connected to each other in series, and a third circuit including a third switch provided in a circuit connected to a contact point provided between the first capacitor and the first switch and a contact point provided between the second capacitor and the second switch,
- the second circuit being connected to the first circuit in parallel,
- wherein the AC generation circuit is configured to execute a first control for supplying electricity from the first capacitor and the second capacitor to a secondary battery connected to the first circuit and the second circuit in a state in which the first switch and the second switch are in a shut-off state, the third switch is in a conduction state and the first capacitor and the second capacitor are connected to each other in series, and
- wherein the AC generation circuit is configured to execute a second control for supplying electricity from the secondary battery to the first capacitor and the second capacitor in a state in which the first switch and the second switch are in a conduction state and the third switch is in a shut-off state.
Dependencies are inferred from the claim text.