CN104283283A - Mobile terminal and circuit for reducing charge heating of rapid charge battery thereof - Google Patents
Mobile terminal and circuit for reducing charge heating of rapid charge battery thereof Download PDFInfo
- Publication number
- CN104283283A CN104283283A CN201410584338.6A CN201410584338A CN104283283A CN 104283283 A CN104283283 A CN 104283283A CN 201410584338 A CN201410584338 A CN 201410584338A CN 104283283 A CN104283283 A CN 104283283A
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- Prior art keywords
- battery
- oxide
- metal
- semiconductor
- circuit
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 239000004065 semiconductor Substances 0.000 claims description 74
- 238000003475 lamination Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H02J7/0091—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention disclose a mobile terminal and a circuit for reducing charge heating of a rapid charge battery thereof and belongs to the technical field of mobile terminals. The circuit comprises a battery cell and the battery, wherein a battery protecting circuit is connected between the battery cell and the battery, the battery protecting circuit comprises at least two MOS tube stacks which are connected in parallel, and each MOS tube stack comprises at least one MOS tube. The mobile terminal comprises the circuit for reducing charge heating of the rapid charge battery. According to the mobile terminal and the circuit for reducing charge heating of the rapid charge battery thereof, charging current is increased through parallel connection of the MOS tubes so as to meet the requirement for rapid charge currents, and meanwhile, the internal resistance of a whole battery protecting plate is reduced, and heating of the battery of the mobile terminal is reduced.
Description
Technical field
The present invention relates to technical field of mobile terminals, be specifically related to the circuit of a kind of mobile terminal and reduction quick charging battery charging heating thereof.
Background technology
Along with the development of science and technology; in the mobile terminal of the wireless high-end intelligent communication of GSM, CDMA, PHS, SCDMA, 3G etc.; mobile terminal ensures that charging is fast again while pursuit stand-by time is long; therefore the battery capacity of mobile terminal increases gradually; filling in situation soon; the charging current of battery is accelerated; the speed of ion motion is accelerated; inside battery and baffle is caused to generate heat more serious; particularly as user while to mobile terminal charging while when using mobile terminal, heating problem is very serious.
The battery core of quick charging battery is than common battery core temperature rise, general quick charging battery maximum temperaturerise is at about 15 degree, add mainboard itself also in heating, cause caloric value too large, overall performance can be made further to decline, be unfavorable for mobile phone cycle life, cell rear cover can be produced time serious and burn or the potential safety hazard of human body of burning, affect Consumer's Experience and bring threat to user.
Summary of the invention
The invention provides a kind of mobile terminal and reduce the circuit of quick charging battery charging heating, to reach the object of battery-heating reducing mobile terminal, overcome above-mentioned quick charging battery and to generate heat the defect causing overall performance to decline.
The technical scheme that the present invention solves the problems of the technologies described above is as follows.
According to an aspect of the present invention; the circuit of the reduction quick charging battery charging heating provided, comprises battery core and battery, is connected with battery protecting circuit between battery core and battery; this battery protecting circuit comprises at least two metal-oxide-semiconductor groups in parallel, and each metal-oxide-semiconductor group comprises at least one metal-oxide-semiconductor.
Preferably, above-mentioned metal-oxide-semiconductor group is two, and be respectively the first metal-oxide-semiconductor group and the second metal-oxide-semiconductor group, each metal-oxide-semiconductor group comprises two metal-oxide-semiconductors.
Preferably, above-mentioned first metal-oxide-semiconductor group comprises the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, second metal-oxide-semiconductor group comprises the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, the grid of the first metal-oxide-semiconductor connects the DO port of battery core, the grid of the second metal-oxide-semiconductor connects the CO port of battery core, the drain electrode of the first metal-oxide-semiconductor connects the drain electrode of the second metal-oxide-semiconductor, the drain electrode of the 3rd metal-oxide-semiconductor connects the drain electrode of the 4th metal-oxide-semiconductor, the negative pole of Node connectedness battery that the source electrode of the first metal-oxide-semiconductor and the source electrode of the 3rd metal-oxide-semiconductor are connected to form and the VSS port of battery core, the positive pole of Node connectedness battery that the source electrode of the second metal-oxide-semiconductor and the source electrode of the 4th metal-oxide-semiconductor are connected to form and the VM port of battery core.
Preferably, the circuit of this reduction quick charging battery charging heating also comprises NTC thermistor and electric capacity C
1, one end of NTC thermistor connects the node between the negative pole of battery and battery protecting circuit, and the other end of NTC thermistor connects electric capacity C
1one end, electric capacity C
1the other end connect the negative pole of battery.
Preferably, FTC thermistor is connected with between the positive pole of above-mentioned battery and the vdd terminal mouth of battery core.
Preferably, electric capacity C is connected with between the vdd terminal mouth of above-mentioned battery core and VSS port
2.
Preferably, above-mentioned battery core is lamination type electric core.
According to another aspect of the present invention, a kind of mobile terminal provided, this mobile terminal comprises the circuit of above-mentioned reduction quick charging battery charging heating.
The invention provides the circuit of a kind of mobile terminal and reduction quick charging battery charging heating thereof, adopt the mode raising charging current of two metal-oxide-semiconductor parallel connection thus satisfied requirement of filling charging current soon, mode in parallel reduces the internal resistance of whole battery protecting plate; Meanwhile, be connected into thermistor in the present invention, make when ambient temperature reaches extremely, battery energy start-up temperature is protected, and when ambient temperature is recovered normally, battery can recover normal and work, and overall charging interval temperature being affected battery controls to minimum; On the other hand, battery core of the present invention selects lamination type electric core, is stacked up by each pole piece, is connected in parallel and reduces battery core internal resistance further, reduce heating.
Accompanying drawing explanation
Fig. 1 is that circuit according to an embodiment of the invention connects block diagram;
Fig. 2 is circuit connection diagram according to an embodiment of the invention.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Fig. 1 with Fig. 2 is respectively circuit according to an embodiment of the invention and is connected block diagram and circuit connection diagram; the circuit of reduction quick charging battery according to an embodiment of the invention charging heating is described below in conjunction with Fig. 1 and Fig. 2; as depicted in figs. 1 and 2; this circuit comprises battery core and battery; battery protecting circuit 1 is connected with between battery core and battery; this battery protecting circuit 1 comprises at least two metal-oxide-semiconductor groups in parallel, and each metal-oxide-semiconductor group comprises at least one metal-oxide-semiconductor.
According to one embodiment of present invention, above-mentioned metal-oxide-semiconductor group is two, and each metal-oxide-semiconductor group comprises two metal-oxide-semiconductors, is respectively the first metal-oxide-semiconductor group and the second metal-oxide-semiconductor group, and wherein, the first metal-oxide-semiconductor group comprises the first metal-oxide-semiconductor M
1with the second metal-oxide-semiconductor M
2, the second metal-oxide-semiconductor group comprises the 3rd metal-oxide-semiconductor M
3with the 4th metal-oxide-semiconductor M
4the grid of the first metal-oxide-semiconductor connects the DO port of battery core, the grid of the second metal-oxide-semiconductor connects the CO port of battery core, the drain electrode of the first metal-oxide-semiconductor connects the drain electrode of the second metal-oxide-semiconductor, the drain electrode of the 3rd metal-oxide-semiconductor connects the drain electrode of the 4th metal-oxide-semiconductor, the negative pole of Node connectedness battery that the source electrode of the first metal-oxide-semiconductor and the source electrode of the 3rd metal-oxide-semiconductor are connected to form and the VSS port of battery core, the positive pole of Node connectedness battery that the source electrode of the second metal-oxide-semiconductor and the source electrode of the 4th metal-oxide-semiconductor are connected to form and the VM port of battery core.
Battery in use; the temperature rise brought due to quick charge or the protection circuit of self lost efficacy; battery cannot charge closing automatically; the direct result brought to mobilephone terminal user is that battery is hot; bulge; leakage; the potential safety hazards such as blast; battery cannot re-use, in view of this, in order to make when ambient temperature reaches extremely; battery energy start-up temperature is protected; when ambient temperature is recovered normally, battery can recover normal work, and the circuit of this reduction quick charging battery charging heating also comprises NTC thermistor, FTC thermistor and electric capacity C
1, one end of NTC thermistor connects the node between the negative pole of battery and battery protecting circuit, and the other end of NTC thermistor connects electric capacity C
1one end, electric capacity C
1the other end connect the negative pole of battery.FTC thermistor is connected between the positive pole of battery and the vdd terminal mouth of battery core.Wherein, the available Standard resistance range of NTC thermistor is 47K Ω ~ 4050K Ω.
Wherein, electric capacity C is also comprised
2, this C
2one end connect the vdd terminal mouth of battery core, its other end connects the VSS port of battery core.
In order to reduce battery core internal resistance further, as preferably, above-mentioned battery core selects each pole piece to superpose the lamination type electric core be connected in parallel.
Set about from the internal resistance of components and parts, should select the electronic devices and components of lower internal resistance, wherein, the model of metal-oxide-semiconductor selects FC4B22070L, resistance R in Fig. 2
1select resistance to be the resistance of 300 ~ 360 Ω, wherein, the resistance of 330 Ω is optimal resistance, resistance R in Fig. 2
2select resistance to be the resistance of 800 ~ 1200 Ω, wherein, the resistance of 1000 Ω is best.
A kind of mobile terminal provided according to another aspect of the present invention, this mobile terminal comprises the circuit of above-mentioned reduction quick charging battery charging heating.
Pass through the present invention program; the safety problem of battery fast charging and discharging in the wireless terminals such as GSM, CDMA, SCDMA, 3G is protected; uncertain environment prevention and the monitoring of mobile communication travelling carriage effectively can be improved with the lithium battery protection circuit of this circuit design; there is the features such as cost is low, reliability is high, safe; for battery NTC, temperature rise is monitored simultaneously; simultaneously can the cycle life of available protecting battery in monitoring, safe fill experience soon to user friendly.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. reduce the circuit of quick charging battery charging heating; comprise battery core and battery, be connected with battery protecting circuit between described battery core and described battery, it is characterized in that; described battery protecting circuit comprises at least two metal-oxide-semiconductor groups in parallel, and each metal-oxide-semiconductor group comprises at least one metal-oxide-semiconductor.
2. the circuit of reduction quick charging battery charging heating according to claim 1, it is characterized in that, described metal-oxide-semiconductor group is two, is respectively the first metal-oxide-semiconductor group and the second metal-oxide-semiconductor group, and each described metal-oxide-semiconductor group comprises two metal-oxide-semiconductors.
3. the circuit of reduction quick charging battery charging heating according to claim 2, it is characterized in that, described first metal-oxide-semiconductor group comprises the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, described second metal-oxide-semiconductor group comprises the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, the grid of described first metal-oxide-semiconductor connects the DO port of described battery core, the grid of described second metal-oxide-semiconductor connects the CO port of described battery core, the drain electrode of described first metal-oxide-semiconductor connects the drain electrode of described second metal-oxide-semiconductor, the drain electrode of described 3rd metal-oxide-semiconductor connects the drain electrode of described 4th metal-oxide-semiconductor, the negative pole of Node connectedness battery that the source electrode of described first metal-oxide-semiconductor and the source electrode of described 3rd metal-oxide-semiconductor are connected to form and the VSS port of battery core, the positive pole of battery and the VM port of battery core described in the Node connectedness that the source electrode of described second metal-oxide-semiconductor and the source electrode of described 4th metal-oxide-semiconductor are connected to form.
4. the circuit of reduction quick charging battery charging heating according to claim 1, is characterized in that, also comprise NTC thermistor and electric capacity C
1, one end of described NTC thermistor connects the node between the negative pole of battery and battery protecting circuit, and the other end of described NTC thermistor connects described electric capacity C
1one end, described electric capacity C
1the other end connect the negative pole of described battery.
5. the circuit of reduction quick charging battery charging heating according to claim 1, is characterized in that, be connected with FTC thermistor between the positive pole of described battery and the vdd terminal mouth of described battery core.
6. the circuit of reduction quick charging battery charging heating according to claim 1, is characterized in that, be connected with electric capacity C between the vdd terminal mouth of described battery core and VSS port
2.
7. the circuit of the reduction quick charging battery charging heating according to any one of claim 1 to 6, it is characterized in that, described battery core is lamination type electric core.
8. a mobile terminal, is characterized in that, described mobile terminal comprises the circuit of the reduction quick charging battery charging heating described in any one of the claims 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584338.6A CN104283283A (en) | 2014-10-27 | 2014-10-27 | Mobile terminal and circuit for reducing charge heating of rapid charge battery thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584338.6A CN104283283A (en) | 2014-10-27 | 2014-10-27 | Mobile terminal and circuit for reducing charge heating of rapid charge battery thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104283283A true CN104283283A (en) | 2015-01-14 |
Family
ID=52257893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410584338.6A Pending CN104283283A (en) | 2014-10-27 | 2014-10-27 | Mobile terminal and circuit for reducing charge heating of rapid charge battery thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN104283283A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684976A (en) * | 2016-12-19 | 2017-05-17 | 江苏嘉钰新能源技术有限公司 | Power charging and discharging device for backup power source using MOS tubes |
| CN108282015A (en) * | 2018-03-30 | 2018-07-13 | 北京国能电池科技股份有限公司 | Battery monitoring device and control system |
| CN108682289A (en) * | 2018-07-10 | 2018-10-19 | 成都中辰信息科技有限公司 | A kind of school bag is listed |
| CN109921487A (en) * | 2019-03-19 | 2019-06-21 | 深圳欣旺达智能科技有限公司 | The protection circuit and protective device in fast charge circuit |
| US10797493B2 (en) | 2016-09-20 | 2020-10-06 | Huawei Technologies Co., Ltd. | Battery, terminal, and charging system |
| US10819127B2 (en) | 2016-09-20 | 2020-10-27 | Huawei Technologies Co., Ltd. | Charging circuit, terminal, and charging system |
| CN111969168A (en) * | 2019-05-20 | 2020-11-20 | Oppo广东移动通信有限公司 | Battery pack and electronic device |
| CN112350390A (en) * | 2019-08-08 | 2021-02-09 | Oppo广东移动通信有限公司 | Charging circuit, charging chip, terminal and charging system |
| CN112398186A (en) * | 2019-08-16 | 2021-02-23 | Oppo广东移动通信有限公司 | Charging circuit, charging chip, terminal and circuit control method |
| CN115296377A (en) * | 2022-09-30 | 2022-11-04 | 荣耀终端有限公司 | Electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11444470B2 (en) | 2016-09-20 | 2022-09-13 | Huawei Technologies Co., Ltd. | Battery, terminal, and charging system |
| US10797493B2 (en) | 2016-09-20 | 2020-10-06 | Huawei Technologies Co., Ltd. | Battery, terminal, and charging system |
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| CN108282015A (en) * | 2018-03-30 | 2018-07-13 | 北京国能电池科技股份有限公司 | Battery monitoring device and control system |
| CN108682289A (en) * | 2018-07-10 | 2018-10-19 | 成都中辰信息科技有限公司 | A kind of school bag is listed |
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| CN111969168B (en) * | 2019-05-20 | 2023-03-17 | Oppo广东移动通信有限公司 | Battery pack and electronic device |
| CN112350390B (en) * | 2019-08-08 | 2022-12-13 | Oppo广东移动通信有限公司 | Charging circuit, charging chip, terminal and charging system |
| CN112350390A (en) * | 2019-08-08 | 2021-02-09 | Oppo广东移动通信有限公司 | Charging circuit, charging chip, terminal and charging system |
| WO2021031842A1 (en) * | 2019-08-16 | 2021-02-25 | Oppo广东移动通信有限公司 | Charging circuit, charging chip, terminal, and circuit control method |
| CN112398186B (en) * | 2019-08-16 | 2023-01-03 | Oppo广东移动通信有限公司 | Charging circuit, charging chip, terminal and circuit control method |
| CN112398186A (en) * | 2019-08-16 | 2021-02-23 | Oppo广东移动通信有限公司 | Charging circuit, charging chip, terminal and circuit control method |
| CN115296377A (en) * | 2022-09-30 | 2022-11-04 | 荣耀终端有限公司 | Electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant after: Nubian Technologies Ltd. Address before: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant before: Shenzhen ZTE Mobile Tech Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150114 |