Battery pack with switching device
First Claim
Patent Images
1. A battery pack comprising:
- a battery;
communication lines capable of connecting with an electrical device that is attachable to the battery pack;
a temperature-sensing element that is connected with one of the communication lines and detects temperature of the battery as a voltage;
a switching device that connects with the temperature-sensing element; and
a control section connected externally with the switching device to control the switching device;
positive terminal and a GND terminal; and
a communication section for processing communications with the electrical device (P), the communication section comprising a communication data generation section for constructing data signals that can be received by the electrical device, a communication driver section for executing actual communication with the electrical device via the communication lines, and a memory for storing data including parameters for computing remaining battery capacity,wherein the control section puts the switching device in the open state when the communication lines are being used, and the control section puts the switching device in the closed state to connect the temperature-sensing element with the one communication line so as to output the voltage sensed by the temperature-sensing element to the electrical device via the one communication line when the communication lines are not being used,wherein the temperature-sensing element and the switching device are connected in series between one of the communication lines and the GND terminal,wherein the switching device is connected between the temperature-sensing element and the GND terminal, andwherein the communication lines comprise a data line and a clock line, and the temperature-sensing element is connected to the data line.
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Abstract
The battery pack is provided with communication lines that connect with attached electrical equipment, a temperature-sensing element that connects with a communication line, a switching device that connects with the temperature-sensing element, and a control section to control the switching device. The control section puts the switching device in the open state when the communication lines are being used and puts the switching device in the closed state when the communication lines are not being used to output temperature-sensing element voltage to the electrical equipment-side via the communication lines.
8 Citations
15 Claims
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1. A battery pack comprising:
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a battery; communication lines capable of connecting with an electrical device that is attachable to the battery pack; a temperature-sensing element that is connected with one of the communication lines and detects temperature of the battery as a voltage; a switching device that connects with the temperature-sensing element; and a control section connected externally with the switching device to control the switching device; positive terminal and a GND terminal; and a communication section for processing communications with the electrical device (P), the communication section comprising a communication data generation section for constructing data signals that can be received by the electrical device, a communication driver section for executing actual communication with the electrical device via the communication lines, and a memory for storing data including parameters for computing remaining battery capacity, wherein the control section puts the switching device in the open state when the communication lines are being used, and the control section puts the switching device in the closed state to connect the temperature-sensing element with the one communication line so as to output the voltage sensed by the temperature-sensing element to the electrical device via the one communication line when the communication lines are not being used, wherein the temperature-sensing element and the switching device are connected in series between one of the communication lines and the GND terminal, wherein the switching device is connected between the temperature-sensing element and the GND terminal, and wherein the communication lines comprise a data line and a clock line, and the temperature-sensing element is connected to the data line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A battery pack comprising:
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a battery; communication lines capable of outputting and receiving information signals to an electrical device when attached to the battery pack; a temperature-sensing element that directly connects with at least one of the communication lines and detects temperature of the battery as a voltage; a switching device that connects with the temperature-sensing element; a control section connected externally with the switching device to control the switching device; a positive terminal and a GND terminal; and a communication section that is operable to respond to an information request signal sent from the electrical device via the communication lines, the communication section comprising a communication data generation section for constructing data signals that can be received by the electrical device, a communication driver section for executing actual communication with the electrical device via the communication lines, and a memory for storing data including parameters for computing remaining battery capacity, wherein the control section puts the switching device in the open state when the communication lines are being used, and the control section puts the switching device in the closed state to connect the temperature-sensing element with the communication lines so as to output the voltage sensed by the temperature-sensing element to the electrical device via the communication lines when the communication lines are not being used wherein the temperature-sensing element and the switching device are connected in series between one of the communication lines and the GND terminal, wherein the switching device is connected between the temperature-sensing element and the GND terminal, and wherein the communication lines comprise a data line and a clock line, and the temperature-sensing element is connected to the data line. - View Dependent Claims (11, 12, 13, 14)
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15. A battery pack comprising:
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a battery; communication lines capable of connecting with an electrical device attachable to the battery pack; a temperature-sensing element that directly connects with a communication line and detects temperature of the battery as a voltage; a switching device that connects with the temperature-sensing element; a control section connected externally with the switching device to control the switching device; a positive terminal and a GND terminal; and a communication section that periodically receives a request signal from the electrical device, and outputs an information signal to the electrical device on the communication lines, the communication section comprising a communication data generation section for constructing data signals that can be received by the electrical device, a communication driver section for executing actual communication with the electrical device via the communication lines, and a memory for storing data including parameters for computing remaining battery capacity, wherein the control section puts the switching device in the open state when the communication lines are being used, and the control section puts the switching device in the closed state to connect the temperature-sensing element with the communication lines so as to output the voltage sensed by the temperature-sensing element to the electrical device via the communication lines when the communication lines are not being used, wherein the temperature-sensing element and the switching device are connected in series between one of the communication lines and the GND terminal, wherein the switching device is connected between the temperature-sensing element and the GND terminal, and wherein the communication lines comprise a data line and a clock line, and the temperature-sensing element is connected to the data line.
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Specification