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An overcharge protection device, an overcharge protection method, and a wearable device

An overcharge protection and wearable device technology, applied in battery overcharge protection, emergency protection circuit devices, circuit devices, etc., can solve problems such as threatening user safety, user property loss, and burning out batteries, etc. Danger or property damage, effect of reducing the number of modules

Active Publication Date: 2020-09-04
GUANGDONG XIAOTIANCAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The realization of these functions leads to a relatively large consumption of battery power of wearable devices, increasing the charging frequency of wearable devices
During the charging process of the wearable device, due to the short circuit of the circuit or failure to stop charging the wearable device in time due to user neglect, the wearable device becomes hot and hot, and even burns out the battery or causes the battery to explode, thereby threatening the safety of the user or causing damage to the wearable device. User Property Loss

Method used

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  • An overcharge protection device, an overcharge protection method, and a wearable device
  • An overcharge protection device, an overcharge protection method, and a wearable device
  • An overcharge protection device, an overcharge protection method, and a wearable device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see figure 1 , figure 1 It is a schematic structural diagram of an overcharge protection device disclosed in an embodiment of the present invention; figure 1 As shown, an overcharge protection device may include: a charging and discharging interface terminal 10, a first-level integrated protection module 20, a second-level integrated protection module 30, and a power supply interface terminal 40;

[0037] Wherein, the first-level integrated protection module 20 includes the positive terminal (VDD) 3 of the first module power supply, the negative terminal (VSS) 2 of the first module power supply, and the first switch module of the first switch module integrated in the first-level integrated protection module 20 . Pin (S1) 1 and the second pin (S2) 6, and the first overcurrent detection pin (V) 4; the second stage integrated protection module 30 includes the second module power supply positive terminal (VDD) 3, the second The module power supply negative terminal (VSS) ...

Embodiment 2

[0048] see figure 2 , figure 2 Another structural schematic diagram of the overcharge protection device disclosed in the embodiment of the present invention; figure 2 shown in the overcharge protection device with figure 1 Compared with the overcharge protection device shown, one of the differences lies in:

[0049] The overcharge protection device also includes a first capacitor C1 and a second capacitor C2; wherein, one end of the first capacitor C1 is respectively connected to the positive pole (P+) of the charging and discharging interface terminal 10 and the positive pole (B+) of the power supply interface terminal 40, The other end of the first capacitor C1 is connected to one end of the second capacitor C2; the other end of the second capacitor C2 is respectively connected to the negative pole (P+) of the charging and discharging interface terminal 10, the negative pole (B-) of the power supply interface terminal 40, The overcurrent detection pin (V) 4 is connecte...

Embodiment 3

[0056] see image 3 , image 3 A schematic structural diagram of a wearable device disclosed in an embodiment of the present invention; image 3As shown, the wearable device includes: such as figure 1 or figure 2 The overcharge protection device shown, wherein, the charge and discharge interface 10 in the overcharge protection device is externally connected to the charge and discharge circuit in the wearable device, and the power supply interface 40 in the overcharge protection device is externally connected to the charge and discharge circuit in the wearable device Battery.

[0057] Wherein, when the charge-discharge circuit charges the battery through the charge-discharge interface, the first overcurrent detection pin (V) 4 of the first-level integrated protection module 20 detects the voltage of the battery, and when the voltage of the battery meets the rated voltage, the second The first-level overcharge protection triggers the first switch module to be closed, and no...

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PUM

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Abstract

An embodiment of the invention relates to the technical field of wearable devices and discloses an overcharge protective device, an overcharge protective method and a wearable device; the overcharge protective device is characterized in that a first module power positive end of a first-level integrated protective module and a second module power positive end of a second-level integrated protective module are connected respectively to a positive pole of a charge-discharge interface end and a positive pole of a power interface end, a second pin of a first switch module of the first-level integrated protective module, a first overcurrent detection pin and a second pin of a second switch module of the second-level integrated protective module are connected to a negative pole of the charge-discharge interface end, and a first pin of the first switch module is connected with a second pion of the second switch module; a first pin of the second switch module and a second module power negative end of the second-level integrated protective module are connected to a negative pole of the power interface end. Through two-level overcharge protection according to the embodiment of the invention, it is possible to reduce danger or property loss due to overcharge.

Description

technical field [0001] The invention relates to the technical field of wearable devices, in particular to an overcharge protection device, an overcharge protection method, and wearable devices. Background technique [0002] With the development of wearable device technology, wearable devices can be connected with mobile terminals to achieve various functions, and have gradually been accepted by consumers. For example, wearable devices (such as smart watches, smart bracelets, etc.) can synchronize phone calls, text messages, emails, photos, music, etc. in mobile terminals. The realization of these functions leads to a relatively large consumption of battery power of the wearable device, which increases the charging frequency of the wearable device. During the charging process of the wearable device, due to the short circuit of the circuit or failure to stop charging the wearable device in time due to user neglect, the wearable device becomes hot and hot, and even burns out t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02H7/18H01M10/44
CPCH01M10/44H02H7/18H02J7/0026H02J7/00302Y02E60/10
Inventor 代剑敏
Owner GUANGDONG XIAOTIANCAI TECH CO LTD