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Battery pack

A battery pack, battery technology, applied in battery pack components, secondary batteries, battery circuit devices, etc., can solve problems such as inapplicability

Inactive Publication Date: 2011-07-13
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the technique disclosed in Patent Document 1, the control terminal DS is required in the battery protection IC 91 for temperature protection of the battery pack.
That is, if the control terminal DS exists in the battery protection IC 91 of the battery pack, the technology can be applied to the battery pack, and if it does not exist, it cannot be applied

Method used

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  • Battery pack
  • Battery pack
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Hereinafter, this embodiment will be described with reference to the drawings.

[0018] figure 1 It is a block diagram showing the battery pack of this embodiment. figure 2 It is a block diagram showing the battery protection IC of this embodiment. image 3 It is a block diagram showing the temperature switch IC of this embodiment.

[0019] Such as figure 1 As shown, the battery pack 10 includes a battery protection IC 11 , a temperature switch IC 12 , N-type FETs 13 - 15 , resistors 16 - 17 , and a battery 18 . In addition, the battery pack 10 includes an external terminal EB+ and an external terminal EB−.

[0020] Such as figure 2 As shown, the battery protection IC 11 includes reference voltage generation circuits 41 to 42 , an overcharge detection comparator 44 , and an overdischarge detection comparator 43 . In addition, the battery protection IC 11 includes a power supply terminal, a ground terminal, a charge control terminal CO, and a discharge control ...

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PUM

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Abstract

Provided is a battery pack capable of implementing temperature protection with ease. Regardless of whether or not a battery protection IC (11) has a terminal for temperature protection of a battery pack (10), the battery pack (10) is capable of implementing the temperature protection by using an N type FET (15) and a resistor (17). Accordingly, there is no influence of the presence / absence of the terminal on implementing the temperature protection of the battery pack (10). Therefore, the battery pack (10) may implement the temperature protection with ease.

Description

technical field [0001] The present invention relates to a battery pack equipped with a temperature switch IC. Background technique [0002] A conventional battery pack will be described. Figure 5 is a block diagram showing a conventional battery pack. [0003] The battery protection IC 91 controls the N-type FETs 93 to 94 based on the voltage of the battery 98 . The overcharge voltage indicating that the battery 98 is in an overcharged state and the overdischarge voltage indicating that the battery 98 is in an overdischarged state are preset. When the voltage of the battery 98 is above the overcharge voltage, the voltage of the charge control terminal CO is controlled to be low. level, the N-type FET94 is turned off, and the charging of the battery 98 is stopped. Also, when the voltage of the battery 98 is equal to or lower than the overdischarge voltage, the voltage of the discharge control terminal DO is controlled to be low, the N-type FET 93 is turned off, and the dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/44H02H7/18H01M2/10H01M10/48H02J7/00
CPCY02E60/12H01M10/486H01M10/443Y02E60/10H01M50/572H01M10/44H01M10/637H01M10/425
Inventor 三谷正宏小泽贵一
Owner SEIKO INSTR INC