CN206595737U - A kind of lithium battery charging system - Google Patents
A kind of lithium battery charging system Download PDFInfo
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- CN206595737U CN206595737U CN201720226243.6U CN201720226243U CN206595737U CN 206595737 U CN206595737 U CN 206595737U CN 201720226243 U CN201720226243 U CN 201720226243U CN 206595737 U CN206595737 U CN 206595737U
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Abstract
The utility model discloses a kind of lithium battery charging system, including logic processing module, overvoltage/under-voltage detection module, over-current detection module, metal-oxide-semiconductor drive module, protect time delay module, temperature detecting module and charging induction module, the logic processing module connects overvoltage/under-voltage detection module respectively, over-current detection module, metal-oxide-semiconductor drive module, protect time delay module, temperature detecting module and charging induction module, over-pressed detection module is used for the voltage for detecting lithium battery, over-current detection module connects cathode of lithium battery by sampling resistor, sampling resistor is also connected with the S poles of electric discharge metal-oxide-semiconductor, the D poles of the D poles connection charging metal-oxide-semiconductor of electric discharge metal-oxide-semiconductor, the G poles of electric discharge metal-oxide-semiconductor and the G of charging metal-oxide-semiconductor are all connected to metal-oxide-semiconductor drive module.The utility model lithium battery charging system is safe, circuit module simple, applied widely.
Description
Technical field
The utility model is related to a kind of charging system, specifically a kind of lithium battery charging system.
Background technology
Battery is generally divided into lead accumulator, nickel-cadmium cell, Ni-MH battery and lithium ion battery.Because battery species is numerous
Many and capacity differs, the battery of variety classes and capacity generally require it is different charger matched, if the charging of battery
Device matching it is bad occur overcharge overheat etc. dangerous phenomenon, so as to influence the normal use of battery and shorten the battery longevity
Life.
Utility model content
The purpose of this utility model is to provide a kind of lithium battery charging system, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the utility model provides following technical scheme：
A kind of lithium battery charging system, including logic processing module, overvoltage/under-voltage detection module, over-current detection module,
Metal-oxide-semiconductor drive module, protection time delay module, temperature detecting module and charging induction module, the logic processing module connect respectively
Take over pressure/under-voltage detection module, over-current detection module, metal-oxide-semiconductor drive module, protection time delay module, temperature detecting module and fill
Electric induction module, over-pressed detection module is used for the voltage for detecting lithium battery, and over-current detection module connects lithium electricity by sampling resistor
Pond negative pole, sampling resistor is also connected with the S poles of electric discharge metal-oxide-semiconductor, the D poles of the D poles connection charging metal-oxide-semiconductor of electric discharge metal-oxide-semiconductor, electric discharge MOS
The G poles of pipe and the G of charging metal-oxide-semiconductor are all connected to metal-oxide-semiconductor drive module.
It is used as further program of the utility model：The charging inductive detection module is also connected with the induced signal that charges
CTRL。
It is used as further program of the utility model：The temperature detecting module uses thermo-sensitive resistor.
It is used as further program of the utility model：Chargings of the charging induced signal CTRL from connection electric main
Device positive pole.
It is used as the utility model further scheme：The S poles connection charger negative pole of the charging metal-oxide-semiconductor.
Compared with prior art, the beneficial effects of the utility model are：The utility model lithium battery charging system security
High, circuit module is simple, applied widely.
Brief description of the drawings
Fig. 1 is the schematic block circuit diagram of lithium battery charging system.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 1, in the utility model embodiment, a kind of lithium battery charging system, including logic processing module, mistake
Pressure/under-voltage detection module, over-current detection module, metal-oxide-semiconductor drive module, protection time delay module, temperature detecting module and charging sense
Answer module, the logic processing module connect respectively overvoltage/under-voltage detection module, over-current detection module, metal-oxide-semiconductor drive module,
Time delay module, temperature detecting module and charging induction module are protected, over-pressed detection module is used for the voltage for detecting lithium battery, excessively stream
Detection module connects cathode of lithium battery by sampling resistor, and sampling resistor is also connected with the S poles of electric discharge metal-oxide-semiconductor, the D for the metal-oxide-semiconductor that discharges
The D poles of pole connection charging metal-oxide-semiconductor, the G poles for the metal-oxide-semiconductor that discharges and the G of charging metal-oxide-semiconductor are all connected to metal-oxide-semiconductor drive module.It is described to fill
Electric induction detection module is also connected with charging induced signal CTRL.The temperature detecting module uses thermo-sensitive resistor.The charging sense
Charger positive poles of the induction signal CTRL from connection electric main.The S poles connection charger negative pole of the charging metal-oxide-semiconductor.
Under normal condition, electric discharge metal-oxide-semiconductor is in the conduction state, and charging metal-oxide-semiconductor is closed！
1）Cross charging protection function principle
By taking 20 section lithium batteries as an example, when any section lithium battery voltage occurs beyond 4.25V, overvoltage detection in 20 section lithium batteries
Module transmits a signal to logic processing module, and then controls metal-oxide-semiconductor drive module to turn off charging metal-oxide-semiconductor；
2）The Cross prevention principle of work and power
When any section lithium battery voltage occurs less than 2.70V in 20 section lithium batteries, under-voltage detection module, which is transmitted a signal to, patrols
Processing module is collected, and then controls metal-oxide-semiconductor drive module to turn off electric discharge metal-oxide-semiconductor；
3）Overcurrent protection function principle
When charge/discharge current is more than arranges value, over-current detection module transmits a signal to logic processing module, and then controls
Metal-oxide-semiconductor drive module turns off charge/discharge metal-oxide-semiconductor；
4）Temperature protection function principle
When temperature is more than 75 degree, temperature detecting module transmits a signal to logic processing module, and then controls metal-oxide-semiconductor driving
Module turns off electric discharge metal-oxide-semiconductor；
5）Charge inducing function
When CTRL has 5V power inputs, charging inductive detection module transmits a signal to logic processing module, and then controls MOS
Pipe drive module opens charging metal-oxide-semiconductor；
6）Protect time delay module
When logic processing module detects defencive function signal, the circuit to electric capacity by charging, to control protection act
Lag time.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (5)
1. a kind of lithium battery charging system, including logic processing module, overvoltage/under-voltage detection module, over-current detection module, MOS
Pipe drive module, protection time delay module, temperature detecting module and charging induction module, it is characterised in that the logical process mould
Block connects overvoltage/under-voltage detection module, over-current detection module, metal-oxide-semiconductor drive module, protection time delay module, temperature detection respectively
Module and charging induction module, over-pressed detection module are used for the voltage for detecting lithium battery, and over-current detection module passes through sampling resistor
Cathode of lithium battery is connected, sampling resistor is also connected with the S poles of electric discharge metal-oxide-semiconductor, and the D poles of electric discharge metal-oxide-semiconductor connect the D poles of charging metal-oxide-semiconductor,
The G poles of electric discharge metal-oxide-semiconductor and the G of charging metal-oxide-semiconductor are all connected to metal-oxide-semiconductor drive module.
2. lithium battery charging system according to claim 1, it is characterised in that the charging inductive detection module is also connected with
Charge induced signal CTRL.
3. lithium battery charging system according to claim 1, it is characterised in that the temperature detecting module uses temperature sensitive electricity
Resistance.
4. lithium battery charging system according to claim 2, it is characterised in that the charging induced signal CTRL is from company
Connect the charger positive pole of electric main.
5. lithium battery charging system according to claim 4, it is characterised in that the S poles connection charging of the charging metal-oxide-semiconductor
Device negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226243.6U CN206595737U (en) | 2017-03-09 | 2017-03-09 | A kind of lithium battery charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226243.6U CN206595737U (en) | 2017-03-09 | 2017-03-09 | A kind of lithium battery charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206595737U true CN206595737U (en) | 2017-10-27 |
Family
ID=60126179
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720226243.6U Expired - Fee Related CN206595737U (en) | 2017-03-09 | 2017-03-09 | A kind of lithium battery charging system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417207A (en) * | 2018-03-06 | 2019-03-01 | 深圳大力神科技有限公司 | A kind of discharge indicating lamp control circuit and its lithium battery source protection plate |
| CN110581596A (en) * | 2019-08-30 | 2019-12-17 | 漳州科华技术有限责任公司 | multi-source energy storage direct current power supply device and UPS equipment |
-
2017
- 2017-03-09 CN CN201720226243.6U patent/CN206595737U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417207A (en) * | 2018-03-06 | 2019-03-01 | 深圳大力神科技有限公司 | A kind of discharge indicating lamp control circuit and its lithium battery source protection plate |
| CN110581596A (en) * | 2019-08-30 | 2019-12-17 | 漳州科华技术有限责任公司 | multi-source energy storage direct current power supply device and UPS equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20180309 |