CN106300515A - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
- Publication number
- CN106300515A CN106300515A CN201610725293.9A CN201610725293A CN106300515A CN 106300515 A CN106300515 A CN 106300515A CN 201610725293 A CN201610725293 A CN 201610725293A CN 106300515 A CN106300515 A CN 106300515A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- mobile terminal
- charging chip
- chip
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000007726 management method Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000024241 parasitism Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H02J7/0091—
-
- H02J7/025—
Abstract
A kind of mobile terminal, including: first circuit board；First charging chip, is arranged on first circuit board；Power management chip, is arranged on first circuit board；Second circuit board；Second charging chip, is arranged on second circuit board, and is connected in parallel with the first charging chip；Temperature-measuring part, is arranged on second circuit board, and is connected with described power management chip.The temperature of second circuit board can be monitored and controlled by above-mentioned mobile terminal in real time, improves the performance of mobile terminal.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of mobile terminal.
Background technology
Along with the battery capacity of mobile terminal is increasing, the charging interval of battery is more and more longer, and prior art uses
Battery is filled by double charging chips soon, it is possible to effectively shorten the charging interval of battery.
Described charging chip is typically all disposed within the mainboard end of mobile terminal, due in charging process, and charging chip temperature
Can raise, the temperature rise ratio causing mainboard is relatively big, and for the charging scheme of double charging chips, the temperature rise of mainboard is bigger.
The heat dissipating method of main flow is to use water-cooled heat-conducting copper pipe technology at present, leads to enter elsewhere by copper pipe by heat
Row heat radiation, but relatively costly, and also volume production wind direction is bigger.
The scheme being charged for double charging chips, can be arranged on one of them charging chip on platelet, and it is certainly
The heat radiation of body also can be transferred to platelet from mainboard end, thus greatly reduces the temperature rise of mainboard.
Owing to being usually provided with high power device and charging chip on mainboard, prior art would generally be to the temperature of mainboard
Measure, with implementing monitoring mainboard temperature and control effectively.
The little plate temperature using the mobile terminal of above-mentioned pair of charging chip scheme also can substantially rise, the too high meeting of little plate temperature
Affect the service behaviour of other devices on platelet, so that the performance of mobile terminal is affected.
It is therefore desirable to the little plate temperature of mobile terminal is monitored and controls, to improve the performance of mobile terminal.
Summary of the invention
The technical problem to be solved is to provide a kind of mobile terminal, is shortening the charging interval, is reducing temperature rise
Meanwhile, the performance of mobile terminal is improved.
In order to solve the problems referred to above, the invention provides a kind of mobile terminal, including: first circuit board；First charging core
Sheet, is arranged on first circuit board；Power management chip, is arranged on first circuit board；Second circuit board；Second charging core
Sheet, is arranged on second circuit board, and is connected in parallel with the first charging chip；Temperature-measuring part, is arranged on second circuit board, and
It is connected with described power management chip.
Optionally, described temperature-measuring part is critesistor.
Optionally, also include: described temperature-measuring part ground connection.
Optionally, the minimum spacing between described temperature-measuring part and the second charging chip is 8mm～10mm.
Optionally, also include: the radome being arranged on second circuit board, shape between described radome and second circuit board
Becoming confined space, described second charging chip is positioned at described confined space.
Optionally, described Shielding Case grounding.
Optionally, the material of described radome is metal.
Optionally, described first circuit board is additionally provided with cell input terminal, described first charging chip and the second charging
The outfan of chip is connected with described cell input terminal.
Optionally, described second circuit board is provided with power input, described first charging chip and the second charging core
The input of sheet is connected with described power input.
Optionally, described second circuit board is additionally provided with antenna.
First charging chip and second charging chip of the mobile terminal of the present invention lay respectively at first circuit board and second
On circuit board, such that it is able to improve radiating efficiency, and temperature-measuring part is set on the second circuit board, it is possible to the second electricity of monitoring in real time
The temperature of road plate.
Further, so the second charging chip is surrounded by radome, can avoid the second charging chip charging process is produced
Raw electromagnetic field leaks, and impacts antenna sensitivity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mobile terminal of the embodiment of the invention；
Fig. 2 is the structural representation of the temperature measurement circuit of the embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the mobile terminal that the present invention provides is elaborated.
Refer to Fig. 1, for the structural representation of described mobile terminal.
Described mobile terminal includes: first circuit board 100；First charging chip 101, is arranged on first circuit board 100；
Power management chip 102, is arranged on first circuit board 100；Second circuit board 200；Second charging chip 201, is arranged at
On two circuit boards 200, and it is connected in parallel with the first charging chip 101；Temperature-measuring part 205, is arranged on second circuit board 200,
And be connected with described power management chip 102.
As a specific embodiment of the present invention, described first circuit board 100 is the mainboard of mobile terminal, and area is relatively
Greatly, described first circuit board 100 can be provided with central processor core, sensor, internal memory, photographic head, earphone interface etc.
Various components and parts.Described first circuit board 100 is usually located at the top of mobile terminal, concrete, can want according to practical layout
Ask and be adjusted.
Described second circuit board 200 is platelet, and area is less, and described second circuit board 200 is usually provided with antenna
204, it is used for receiving wireless or movable signal.Described second circuit board 200 is usually located at the bottom of mobile terminal, concrete, can
To require to be adjusted according to practical layout.
Described first charging chip 101, as main charging chip, can be constantly in duty in charging process；Described
Second charging chip 102, as secondary charging chip, is only filling MODE of operation soon.Described first charging chip 101 and second fills
Electrical chip 102 can be the charging chip of identical or different model.As a specific embodiment of the present invention, described first
Charging chip 101 and the second charging chip 102 are the charging chip of same model.
In other detailed description of the invention of the present invention, the quantity of described second charging chip 102 can also is that two or
Two or more, is connected in parallel between different second charging chips 102, can improve charge efficiency further.
Being additionally provided with cell input terminal 103 on described first circuit board 100, described first charging chip 101 and second fills
The outfan of electrical chip 201 is connected with described cell input terminal 103.When described cell input terminal 103 is to charge battery, as
The inflow end of electric current, thus battery is charged.
The outfan of described second charging chip 201 and the defeated of cell input terminal 103 can be connected by flexible PCB
Enter end, owing to the distance of described second charging chip 201 and the first mainboard 100 is relatively big, described second charging chip 201 and battery
Distance between input 103 is relatively big, causes the connection between the second charging chip 201 outfan and cell input terminal 103 to hinder
Anti-relatively big, if described impedance is excessive, the charging current that can cause the second charging chip 201 output is less, affects charge efficiency.
As a specific embodiment of the present invention, when the charging current of described second charging chip 201 is 2A, and charging voltage is
During 4.6V, it is left that the connection impedance between described second charging chip 201 and cell input terminal 103 could be arranged to 50～80 milliohms
The right side, concrete can be 62 milliohms.
Described battery can be arranged between first circuit board 100 and second circuit board 200, concrete, can be according to reality
Border layout requirements is adjusted.
Power input 203, described first charging chip 101 and the second charging it is provided with on described second circuit board 200
The outfan of chip 201 is connected with described power input 203, and described power input 203 is used for connecting charge power supply.As
One detailed description of the invention, described power input 203 can be powered by USB interface.
It is additionally provided with power management chip 102 on described first circuit board 100.Described power management chip 102 can be visited
Survey the existence of charge power supply, then control described first charging chip 101 and battery is charged by the second charging chip 102,
And monitor the electric current in charging process and voltage etc., carry out overvoltage, excessively stream, cross gentle short-circuit protection etc., it is to avoid battery is made
Become to damage.Described power management chip 102 is connected (Fig. 1 with described first charging chip 101 and the second charging chip 201 respectively
Not shown in), in order to described first charging chip 101 and the second charging chip 201 are managed and control.
It is additionally provided with temperature-measuring part 205, for the temperature of second circuit board 200 is carried out on described second circuit board 200
Measure.As a specific embodiment of the present invention, described temperature-measuring part 205 is critesistor, can be positive temperature coefficient
Critesistor (PTC) or negative tempperature coefficient thermistor (NTC), the resistance of described temperature-measuring part 204 changes with temperature.
Described temperature-measuring part 205 is connected with power management chip 102.Concrete refer to Fig. 2, for described temperature-measuring part
The 204 temperature measurement circuit schematic diagrams accessed.Wherein, described temperature-measuring part 204 is critesistor R1, one end of described critesistor R1
Ground connection, the other end of critesistor R1 connects one end of divider resistance R2, and the described divider resistance R2 other end connects voltage end
206；The connection end of described critesistor R1 and divider resistance R2 is connected to outfan 207.Mono-section of ground connection of electric capacity C1, one section of connection
To the connection end of described critesistor R1 and divider resistance R2, for the output voltage of critesistor R1 is filtered.
In the detailed description of the invention of the present invention, described divider resistance R2 and electric capacity C1 is respectively positioned on first circuit board 100.Tool
Body, described divider resistance R2 and electric capacity C1 can be integrated in power management chip 102.
The resistance of described critesistor R1 is with the variations in temperature of the second circuit board 200 at place, so that critesistor
The output voltage at R1 two ends changes.Described outfan 207 can be connected to the analog digital conversion list in power management chip 102
Unit, is converted into analog voltage signal digital signal and is received by power management chip 102, by power management chip 102 to described
The output signal of outfan 207 is monitored in real time, by the relation of the output signal of outfan 207 Yu temperature, obtains the second electricity
The temperature information of road plate 200.Described power management chip 102 can be to filling according to the temperature information of described second circuit board 200
Electric process is controlled, it is to avoid the temperature of second circuit board 200 is too high.
In a specific embodiment of the present invention, described first circuit board 100 is also equipped with being connected to power supply pipe
Reason chip 102 temperature-measuring part, for monitoring in real time the temperature of first circuit board 100.
Minimum spacing between described temperature-measuring part 205 and the second charging chip 201 is 8mm～10mm.If described thermometric
Distance between parts 205 and the second charging chip 201 is too small, and the temperature of measurement receives the temperature shadow of the second charging chip 201
Ring, bigger with the temperature deviation of second circuit board 200.
In a specific embodiment of the present invention, described second circuit board 200 is additionally provided with radome 202.Institute
Stating formation confined space between radome 202 and second circuit board 200, described second charging chip 201 is positioned at described confined air
In, described second charging chip 201 is represented by dashed line in Fig. 1.Described radome 202 can use welding manner to be fixed on institute
State on second circuit board.The electromagnetic radiation that described confined space can avoid the second charging chip 201 to produce spills, to antenna
The reception signal of 204 interferes, and the sensitivity to antenna 204 impacts.Described radome 202 and the second charging chip it
Between can have certain gap, it is also possible to be close to described second charging chip 201.
Described radome 202 ground connection, owing to described second charging chip 201 easily and produces parasitism between radome 202
Electric capacity, therefore can eliminate the impact of family planning electric capacity, to eliminate common mode disturbances by radome 202 ground connection.
The material of described radome 202 is metal, can be preferably tinplate, ocean copper-nickel alloy etc. the metal material that is prone to welding
Material.Owing to described radome 202 is metal, having higher heat transfer efficiency, described second charging chip 201 is in the course of the work
The heat produced, a part can be dispelled the heat by described radome 202, thus improve the area of dissipation of entirety, be entered one
Step reduces the overall intensification of mobile terminal.
In sum, the first charging chip 101 and second charging chip 201 of described mobile terminal lays respectively at the first electricity
On road plate 100 and second circuit board 200, such that it is able to improve radiating efficiency, and, second circuit board 200 is provided with thermometric
Parts, can be monitored and controlled in real time to the temperature of second circuit board 200, improve the performance of mobile terminal.And second fill
Electrical chip 201 is surrounded by radome 202, and the electromagnetic field produced in the second charging chip 201 charging process can be avoided antenna
The sensitivity of 204 impacts.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a mobile terminal, it is characterised in that including:
First circuit board；
First charging chip, is arranged on first circuit board；
Power management chip, is arranged on first circuit board；
Second circuit board；
Second charging chip, is arranged on second circuit board, and is connected in parallel with the first charging chip；
Temperature-measuring part, is arranged on second circuit board, and is connected with described power management chip.
Mobile terminal the most according to claim 1, it is characterised in that described temperature-measuring part is critesistor.
Mobile terminal the most according to claim 1, it is characterised in that also include: described temperature-measuring part ground connection.
Mobile terminal the most according to claim 1 and 2, it is characterised in that described temperature-measuring part and the second charging chip it
Between minimum spacing be 8mm～10mm.
Mobile terminal the most according to claim 1 and 2, it is characterised in that also include: the screen being arranged on second circuit board
Covering cover, form confined space between described radome and second circuit board, described second charging chip is positioned at described confined space
In.
Mobile terminal the most according to claim 1, it is characterised in that described Shielding Case grounding.
Mobile terminal the most according to claim 1, it is characterised in that the material of described radome is metal.
Mobile terminal the most according to claim 1, it is characterised in that be additionally provided with battery input on described first circuit board
End, the outfan of described first charging chip and the second charging chip is connected with described cell input terminal.
Mobile terminal the most according to claim 8, it is characterised in that be provided with power supply input on described second circuit board
End, the input of described first charging chip and the second charging chip is connected with described power input.
Mobile terminal the most according to claim 5, it is characterised in that be additionally provided with antenna on described second circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725293.9A CN106300515B (en) | 2016-08-25 | 2016-08-25 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725293.9A CN106300515B (en) | 2016-08-25 | 2016-08-25 | Mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106300515A true CN106300515A (en) | 2017-01-04 |
| CN106300515B CN106300515B (en) | 2019-04-26 |
Family
ID=57615288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610725293.9A Active CN106300515B (en) | 2016-08-25 | 2016-08-25 | Mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106300515B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311037A (en) * | 2019-07-31 | 2021-02-02 | 北京小米移动软件有限公司 | Terminal device |
| EP3879658A1 (en) * | 2020-03-13 | 2021-09-15 | Beijing Xiaomi Mobile Software Co., Ltd. | Charging control method and apparatus, electronic device, and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030090238A1 (en) * | 2001-11-12 | 2003-05-15 | Dale Wolin | Battery charging and discharging system optimized for high temperature environments |
| CN101202368A (en) * | 2001-02-14 | 2008-06-18 | 索尼公司 | Charging/discharging apparatus and method for supplying power to the same |
| CN101546920A (en) * | 2008-03-24 | 2009-09-30 | 三美电机株式会社 | Charge control circuit and charge controlling semiconductor integrated circuit |
| CN101562957A (en) * | 2008-04-16 | 2009-10-21 | 台达电子工业股份有限公司 | Buffering subassembly and electronic device using same |
| CN104505888A (en) * | 2014-12-24 | 2015-04-08 | 广东欧珀移动通信有限公司 | Mobile terminal and charging device |
| CN105305523A (en) * | 2014-12-25 | 2016-02-03 | 维沃移动通信有限公司 | Mobile terminal |
-
2016
- 2016-08-25 CN CN201610725293.9A patent/CN106300515B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202368A (en) * | 2001-02-14 | 2008-06-18 | 索尼公司 | Charging/discharging apparatus and method for supplying power to the same |
| US20030090238A1 (en) * | 2001-11-12 | 2003-05-15 | Dale Wolin | Battery charging and discharging system optimized for high temperature environments |
| CN101546920A (en) * | 2008-03-24 | 2009-09-30 | 三美电机株式会社 | Charge control circuit and charge controlling semiconductor integrated circuit |
| CN101562957A (en) * | 2008-04-16 | 2009-10-21 | 台达电子工业股份有限公司 | Buffering subassembly and electronic device using same |
| CN104505888A (en) * | 2014-12-24 | 2015-04-08 | 广东欧珀移动通信有限公司 | Mobile terminal and charging device |
| CN105305523A (en) * | 2014-12-25 | 2016-02-03 | 维沃移动通信有限公司 | Mobile terminal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311037A (en) * | 2019-07-31 | 2021-02-02 | 北京小米移动软件有限公司 | Terminal device |
| CN112311037B (en) * | 2019-07-31 | 2022-05-06 | 北京小米移动软件有限公司 | Terminal device |
| EP3879658A1 (en) * | 2020-03-13 | 2021-09-15 | Beijing Xiaomi Mobile Software Co., Ltd. | Charging control method and apparatus, electronic device, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106300515B (en) | 2019-04-26 |
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