SECONDARY BATTERY CONTROLLER AND METHOD FOR CONTROLLING SECONDARY BATTERY, AND ELECTRONIC APPARATUS
First Claim
1. A secondary battery controller comprising:
- a plurality of temperature detectors that detect temperatures of a plurality of secondary batteries having the same rating, respectively;
a switching device that connects an output of any one of the plurality of secondary batteries to a load; and
a control portion that selects which secondary battery to use from the plurality of secondary batteries and controls the switching device to switch between the secondary batteries based on temperature information of each of the plurality of secondary batteries obtained by the temperature detectors,wherein the control portion connects the selected secondary battery to the load, and then switches the secondary battery connected to the load to another non-selected secondary battery in sequence when the first selected secondary battery reaches a predetermined threshold temperature, and further reconnects the first selected secondary battery to the load when the last selected secondary battery reaches the threshold temperature after all the secondary batteries have been selected.
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Abstract
The present invention provides a secondary battery controller and a method for controlling a secondary battery that can increase the continuous operating time of an apparatus in which a plurality of secondary batteries are switched and used, and an electronic apparatus. The secondary battery controller includes the following; a plurality of temperature detectors that detect temperatures of a plurality of secondary batteries having the same rating, respectively; a switching device that connects an output of any one of the plurality of secondary batteries to a load; and a control portion that selects which secondary battery to use from the plurality of secondary batteries and controls the switching device to switch between the secondary batteries based on temperature information of each of the plurality of secondary batteries obtained by the temperature detectors. The control portion connects the selected secondary battery to the load, and then switches the secondary battery connected to the load to another non-selected secondary battery in sequence when the first selected secondary battery reaches a predetermined threshold temperature, and further reconnects the first selected secondary battery to the load when the last selected secondary battery reaches the threshold temperature after all the secondary batteries have been selected.
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Citations
15 Claims
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1. A secondary battery controller comprising:
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a plurality of temperature detectors that detect temperatures of a plurality of secondary batteries having the same rating, respectively; a switching device that connects an output of any one of the plurality of secondary batteries to a load; and a control portion that selects which secondary battery to use from the plurality of secondary batteries and controls the switching device to switch between the secondary batteries based on temperature information of each of the plurality of secondary batteries obtained by the temperature detectors, wherein the control portion connects the selected secondary battery to the load, and then switches the secondary battery connected to the load to another non-selected secondary battery in sequence when the first selected secondary battery reaches a predetermined threshold temperature, and further reconnects the first selected secondary battery to the load when the last selected secondary battery reaches the threshold temperature after all the secondary batteries have been selected. - View Dependent Claims (2, 3, 4, 5, 15)
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6. A secondary battery controller comprising:
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a temperature detector that detects a temperature of a secondary battery; an operating power control portion that limits operation of a load to which the secondary battery is connected; and a control portion that controls the operating power control portion based on temperature information of the secondary battery obtained by the temperature detector, wherein when the secondary battery reaches a predetermined threshold temperature, the control portion imposes limitations on the operation of the load so that operating power of the load is reduced gradually in accordance with the temperature of the secondary battery. - View Dependent Claims (7)
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8. A method for controlling a secondary battery, in which a plurality of secondary batteries having the same rating are switched and connected to a load,
the method comprising: -
selecting any one of the plurality of secondary batteries as a secondary battery to be connected to the load; connecting the selected secondary battery to the load; switching the secondary battery connected to the load to another non-selected secondary battery in sequence when the first selected secondary battery reaches a predetermined threshold temperature; and reconnecting the first selected secondary battery to the load when the last selected secondary battery reaches a predetermined threshold temperature after all the secondary batteries have been selected. - View Dependent Claims (9, 10, 11, 12)
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13. A method for controlling a secondary battery comprising:
imposing limitations on operation of a load so that operating power of the load is reduced gradually in accordance with a temperature of a secondary battery when the secondary battery reaches a predetermined threshold temperature. - View Dependent Claims (14)
Specification