Multi-battery parallel charging circuit and method, and wearable device having multi-battery parallel charging circuit

A charging method and technology for wearable devices, applied to battery circuit devices, circuit devices, collectors, etc., can solve problems such as overcharging or slow charging, slow charging, etc., improve reliability, reliable charging mechanism, and reduce after-sales maintenance costs Effect

Active Publication Date: 2019-11-01
北京晟运能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application proposes a multi-battery parallel charging circuit and system for the case of overcharging or slow charging due to the different power levels of each battery in the process of multi-battery parallel charging, which solves the problem of multi-battery charging or overcharging or slow charging The problem

Method used

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  • Multi-battery parallel charging circuit and method, and wearable device having multi-battery parallel charging circuit
  • Multi-battery parallel charging circuit and method, and wearable device having multi-battery parallel charging circuit
  • Multi-battery parallel charging circuit and method, and wearable device having multi-battery parallel charging circuit

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Embodiment 1

[0065] Such as Figure 4 As shown, the multi-battery parallel charging circuit of the present invention is proposed. In some embodiments, the system can charge two or more batteries in parallel or sequentially. The system is in terminal equipment, including wearable equipment. For example, in this application, a wristwatch is used as an example. It is independent of the system of the terminal equipment, and adopts an additional small packaged separate device, which is packaged together with the main battery and the said wearable device. In the accommodated space of the wearable device.

[0066] Based on the characteristics of wearable devices, for the ultra-thin and beautiful design of the product, but also limited by the size of the product, during use, since the main battery usually cannot fully meet the needs of users, it is necessary to add an additional auxiliary battery to To improve battery life, this application is based on such a problem. In the existing ultra-thin w...

Embodiment 2

[0081] Such as Figure 6 As shown, a multi-battery parallel charging method specifically includes:

[0082] Step S1: detect whether the charging current of each path is greater than the distribution threshold;

[0083] Step S2: If yes, output a control signal to control the current of the path to be less than or equal to the allocation threshold.

[0084]Specifically: step S1 also includes step S11: detecting whether the charging current of each channel is greater than the distribution threshold, and further including: setting a rechargeable threshold for the battery allocation of the current channel according to the capacity of each channel battery according to preset rules.

[0085] Specifically: step S2 includes step S21: the output control signal, controlling the current of the channel to be less than or equal to the allocation threshold, further including: detecting whether the charging current of the current channel is greater than the rechargeable threshold, if greater...

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Abstract

The present invention relates to a multi-battery parallel circuit, a multi-battery parallel charging method, and a wearable device. The multi-battery parallel circuit comprises a charging controller,current control modules, current detecting modules and battery modules; an output end of the charging controller is connected to the input ends of the plurality of current control modules; the outputends of the current control modules are respectively connected with the input ends of the current detection module; the output ends of the current detection modules are respectively connected with thebattery modules, and the current detection modules are used for detecting whether the charging current of each access is larger a distributed threshold value or not; the circuit control modules are used for controlling the input currents of the battery modules according to the detection results of the current detection modules, distributing rechargeable threshold values under the control of the charging controller and controlling the detected charging current to be regulated in a rechargeable threshold value range according to the detected charging current so as to achieve charging in a constant current and ensure that the condition that each battery cannot be subjected to over-charging or slow charging.

Description

technical field [0001] The present disclosure relates to the field of charging, in particular to a multi-battery parallel charging circuit, method and wearable device having the circuit. Background technique [0002] With the continuous development of technology, current terminal products (including smart wearable products) mostly use non-removable built-in batteries to realize the ultra-thin and beautiful design of mobile phones; due to the size limitation of smart wearable products, power consumption and battery life have become the design limitations of current smart wearable products stumbling block, and with the upgrade of the application, the problem becomes more and more prominent. However, the energy density of batteries cannot be greatly improved in the short term. In this way, it is necessary to consider finding some parallel small spaces outside some non-fixed motherboard locations to add batteries. [0003] However, due to the difference in internal resistance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCY02E60/10
Inventor 刘娇
Owner 北京晟运能源科技有限公司
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