CN204376458U - A kind of mobile terminal and charging device - Google Patents

A kind of mobile terminal and charging device Download PDF

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Publication number
CN204376458U
CN204376458U CN201420839172.3U CN201420839172U CN204376458U CN 204376458 U CN204376458 U CN 204376458U CN 201420839172 U CN201420839172 U CN 201420839172U CN 204376458 U CN204376458 U CN 204376458U
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China
Prior art keywords
charging
voltage
charge switch
power management
output
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CN201420839172.3U
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张俊
冯红俊
李家达
王杰
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Abstract

The utility model relates to charging technique field, and the utility model provides a kind of mobile terminal and charging device, and charging device comprises charging inlet, charge switch, power management chip and at least two charging chips, the voltage output end of charge switch connects the voltage input end of each charging chip, the voltage output end of each charging chip connects battery, the output of power management chip connects the control end of charge switch, power management chip controls to be connected between the voltage input end of charge switch and the voltage output end of charge switch or to disconnect by the control end of charge switch, by arranging at least two charging chips, when quick charge by export big current mean allocation at least two charging chips, make each charging chip can not give out a large amount of heats, avoid the problem moving terminal temperature rising when quick charge.

Description

A kind of mobile terminal and charging device
Technical field
The utility model relates to charging technique field, particularly relates to a kind of mobile terminal and charging device.
Background technology
Along with the recreational of intelligent terminal and playability are more and more higher, the problem that mobile phone power consumption amount is large is more and more serious, so by quick charge to solve the problem, namely high voltage or the quick charge of big current realization to intelligent terminal is usually adopted, no matter be the mode adopting high-tension mode or adopt big current, in the process of quick charge, restriction due to charging chip efficiency can cause charging chip to produce a large amount of heats, in sum, the problem owing to adopting large current charge to cause charging chip temperature to raise when quick charge is there is in prior art.
Utility model content
The purpose of this utility model is to provide a kind of mobile terminal and charging device, is intended to solve the problem for existing in prior art owing to adopting large current charge to cause charging chip temperature to raise when charging.
The utility model is achieved in that first aspect, provides a kind of quick charge device of mobile terminal, and described charging device comprises charging inlet, charge switch, power management chip and at least two charging chips;
The voltage input end of described charging inlet connects external power source, the voltage output end of described charging inlet connects the voltage input end of described charge switch, the voltage output end of described charge switch connects the voltage input end of charging chip described in each, first voltage output end of charging chip described in each connects battery, and the output of described power management chip connects the control end of described charge switch;
Described power management chip controls by the control end of described charge switch to be connected between the voltage input end of described charge switch and the voltage output end of described charge switch or to disconnect.
In conjunction with first aspect, in the implementation that the first is possible, the first voltage detecting end of described power management chip connects the voltage output end of described charge switch;
Described power management chip is after detecting by described first voltage detecting end the magnitude of voltage that described charge switch exports, according to the magnitude of voltage that described charge switch exports, controlled by the control end of described charge switch to be connected between the voltage input end of described charge switch and the voltage output end of described charge switch or to disconnect.
In conjunction with the first possible implementation of first aspect, in the implementation that the second is possible, described power management chip is when the magnitude of voltage detecting that described charge switch exports is less than or equal to the first preset voltage value, and described power management chip controls the separated of the voltage input end of described charge switch and the voltage output end of described charge switch by the control end of described charge switch.
In conjunction with the implementation that the first or the second of first aspect or first aspect are possible, in the implementation that the third is possible, the second voltage detecting end of described power management chip connects the voltage input end of described battery;
Described power management chip is after the input voltage value of described battery being detected by described second voltage detecting end, described power management chip, according to the input voltage value of described battery, controls by the control end of described charge switch to be connected between the voltage input end of described charge switch and the voltage output end of described charge switch or to disconnect.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, described power management chip is when detecting that the input voltage value of described battery is more than or equal to the second preset voltage value, and described power management chip controls the separated of the voltage input end of described charge switch and the voltage output end of described charge switch by the control end of described charge switch.
In conjunction with the first of first aspect or first aspect to any one possible implementation in the 4th kind, in the 5th kind of possible implementation, the data output end of described charging inlet is connected with the data input pin of described charge switch, and the data output end of described charge switch is connected with the data input pin of described power management chip;
When the voltage output end of described charging inlet and the data output end of described charging inlet are short-circuited, described charge switch disconnects the connection of the data input pin of described charge switch and the data output end of described charge switch, or described power management chip controls the connection that described charge switch disconnects the data input pin of described charge switch and the data output end of described charge switch.
In conjunction with the first of first aspect or first aspect to any one possible implementation in the 5th kind, in the 6th kind of possible implementation, described at least two charging chips comprise the first charging chip, the voltage input end of the second voltage output end connected system circuit of described first charging chip, described first charging chip is that described battery and described circuit system are powered.
In conjunction with the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation, described charging device also comprises the first switching device, the voltage input end of described first switching device connects the voltage output end of described battery, the voltage input end of the voltage output end connected system circuit of described first switching device, the data output end of described first charging chip connects the control end of described first switching device;
Described first charging chip be described battery and described circuit system power time, described first charging chip controls the separated of the voltage input end of described first switching device and the voltage output end of described first switching device by the control end of described first switching device.
In conjunction with the first of first aspect or first aspect to any one possible implementation in the 7th kind, in the 8th kind of possible implementation, described charging device also comprises second switch device, the voltage input end of described second switch device connects the voltage output end of described charging inlet, the voltage output end of described second switch device connects the voltage input end of described charge switch, and described second switch device is in off state when input voltage is negative pressure.
Second aspect, the utility model also provides a kind of mobile terminal, comprises above-mentioned first aspect the first quick charge device provided to any one possible implementation in the 7th kind and battery.
The utility model provides a kind of mobile terminal and charging device, and charging device comprises charging inlet, charge switch, power management chip and at least two charging chips; Because charging device is provided with two charging chips, can by the electric current mean allocation of output on these at least two charging chips when quick charge, make each charging chip can not give out a large amount of heats, avoiding the problem moving terminal temperature rising when charging, the fail safe of mobile phone use can be improved and promote Consumer's Experience; And, because power management chip can control connection between the voltage input end of charge switch and the voltage output end of described charge switch or disconnection, thus the electrical connection of charging chip and charging inlet can be disconnected where necessary, the fail safe that mobile phone uses can be improved further.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of charging device that a kind of embodiment of the utility model provides;
Fig. 2 is the structural representation of a kind of charging device that the another kind of embodiment of the utility model provides;
Fig. 3 is the circuit diagram of the charge switch in a kind of charging device of providing of a kind of embodiment of the utility model;
Fig. 4 is the circuit diagram of the charging chip in a kind of charging device of providing of a kind of embodiment of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In order to the technical solution of the utility model is described, be described below by specific embodiment.
A kind of embodiment of the utility model provides a kind of charging device, and as shown in Figure 1, described charging device comprises charging inlet 101, charge switch 102, power management chip 104 and at least two charging chips 103 and 110.
The voltage input end of charging inlet 101 connects external power source, the voltage output end of charging inlet 101 connects the voltage input end of charge switch 102, the data output end of charge switch 102 connects the data input pin of power management chip 104, the voltage output end of charge switch 102 connects the voltage input end of each charging chip, first voltage output end of each charging chip connects battery 105, and the output of described power management chip 104 connects the control end of charge switch 102.
Power management chip 104 controls to be connected between the voltage input end of charge switch 102 and the voltage output end of charge switch 102 or to disconnect by the control end of charge switch 102.
As an embodiment of the present embodiment, the structural representation when quantity giving charging chip in Fig. 1 is two, wherein, charging chip comprises the first charging chip 103 and the second charging chip 110.
Optionally, first voltage detecting end of power management chip 104 connects the voltage output end of charge switch 102, power management chip 104 is after detecting by the first voltage detecting end the magnitude of voltage that charge switch 102 exports, according to the magnitude of voltage that described charge switch 102 exports, control to be connected between the voltage input end of charge switch 102 and the voltage output end of charge switch 102 or to disconnect by the control end of charge switch 102.Further, power management chip 104 detects magnitude of voltage that charge switch 102 exports when being less than or equal to the first preset voltage value, and power management chip 104 controls to be connected between the voltage input end of charge switch 102 and the voltage output end of charge switch 102 or to disconnect by the control end of charge switch 102.
In the present embodiment, concrete, in charging process, by power management chip 104 when the voltage detecting that charge switch exports drops into suddenly below some threshold voltages, judge now the first charging chip 103 and/or the second charging chip 110 breakdown, namely the first charging chip 103 and/or the second charging chip 110 break down, there will be the first charging chip 103 and/or the second charging chip 110 and charging voltage is directly added in situation above battery 105, now power management chip 104 controls charge switch 102 open circuit to turn off charging path thus the safety of protection battery 105.
The another kind of embodiment of the utility model provides a kind of charging device, as shown in Figure 2, second voltage detecting end of power management chip 104 connects the voltage input end of battery 105, power management chip 104 is after the input voltage value of battery 105 being detected by the second voltage detecting end, power management chip 104, according to the input voltage value of battery 105, controls to be connected between the voltage input end of charge switch 102 and the voltage output end of charge switch 102 or to disconnect by the control end of charge switch 102.
Optionally, power management chip 104 is when detecting that the voltage input levels of battery 105 is more than or equal to the second preset voltage value, and power management chip 104 controls to be connected between the voltage input end of charge switch 102 and the voltage output end of charge switch 102 or to disconnect by the control end of charge switch 102.
In the present embodiment; concrete; in charging process; when power management chip 104 detect battery 105 charging voltage exceed predetermined ceiling voltage time; judge that the first charging chip 103 and/or the second charging chip 110 break down; carry out overvoltage charging to battery 105, now power management chip 104 controls charge switch 102 open circuit to turn off charging path thus the safety of protection battery 105.
Optionally, the data output end of charging inlet 101 is connected with the data input pin of charge switch 102, the data output end of charge switch 102 is connected with the data input pin of power management chip, the output of charging inlet 101 comprises voltage output end, first data output end and the second data output end, first data output end is D+ end, second data output end is D-end, voltage difference according to the first data output end and the second data output end transmits data, charging inlet 101 transmits data by the first data output end and the second data output end to charge switch 102, the data output end of charge switch 102 comprises the first data output end and the second data output end, charge switch 102 transmits data according to the voltage difference of the first data output end and the second data output end, first data output end of charge switch 102 is connected the first data input pin and second data input pin of power management chip 104 with the second data output end, when the voltage output end of charging inlet 101 and the first data output end or the second data output end short circuit, charge switch 102 disconnects the connection of the data input pin of turn off charge switch 102 and the data output end of charge switch 102.
In the present embodiment; concrete; can with serving extra problem when adopting high-voltage charging as adopted 9V or 12V voltage to charge; such as when when plugging mobile phone, voltage end and data input pin D-'s user or D+ are short-circuited; the rear polar circuit of mobile phone can be burnt; such as CPU; therefore; need to detect to data input pin D-or D+ the generation preventing open circuit; can automatically disconnect more than during 5V voltage when charge switch 102 detects data input pin D-or D+; to stop the transfer of data with power management chip 104, thus protection device is below injury-free.
It should be noted that, as another kind of execution mode, when power management chip 104 detects that the voltage output end of charging inlet 101 and the first data output end or the second data output end are short-circuited, power management chip 104 controls the connection of the data input pin of charge switch 102 turn off charge switch 102 and the data output end of charge switch 102.
Concrete; when power management chip 104 detects data input pin D-or D+ of charge switch 102 more than the connection of the data output end of the data input pin and charge switch 102 that can control charge switch 102 turn off charge switch 102 during 5V voltage, thus protection device is below injury-free.
As shown in Figure 2, the first voltage output end of the first charging chip 103 connects the voltage input end of the second voltage output end connected system circuit 108 of battery 105, first charging chip 103, and the first charging chip 103 is powered for battery 105 and circuit system 108 simultaneously.
Optionally, quick charge device also comprises the first switching device 106, the voltage input end of the first switching device 106 connects the voltage output end of battery 105, the voltage input end of the voltage output end connected system circuit 108 of the first switching device 106, the voltage input end of the second voltage output end connected system circuit 108 of the first charging chip 103, the data output end of the first charging chip 103 connects the control end of the first switching device 106, first charging chip 103 for battery 105 and circuit system 108 power time, first charging chip 103 controls the separated of the voltage input end of the first switching device 106 and the voltage output end of the first switching device 106 by the control end of the first switching device 103.
In the present embodiment, concrete, first charging chip 103 is also that the circuit system 108 of mobile terminal is powered while charging for battery 105, to maintain the normal work of mobile terminal, now, first charging chip 103 controls the first switching device 106 and is in off-state, prevent battery 105 while charging due to for mobile terminal is powered and consumes power, further achieve the quick charge to battery 105, preferably, the first switching device 106 is triode, field effect transistor or IGBT (insulated gate bipolar transistor).
Optionally, quick charge device comprises second switch device 107, the voltage input end of second switch device 107 connects the output of charging inlet 101, the voltage output end of second switch device 107 connects the voltage input end of charge switch 102, and second switch device 107 is for being in off state when input voltage is negative pressure.
In the present embodiment; concrete; second switch device 107 is protected the negative pressure of charge switch 102 for realizing; preferably; second switch device 106 is triode, field effect transistor or IGBT (insulated gate bipolar transistor); wherein negative pressure is that voltage is less than zero, and now, second switch device 107 disconnects.
Lower mask body introduces the particular circuit configurations used in above-described embodiment, as shown in Figure 3 and Figure 4, preferably, the model of charge switch 102 is IC-MAX14654, its pin IN_0, pin IN_1 and pin IN_2 is the voltage input end connecting charging inlet 101, pin IN_0, the common contact of pin IN_1 and pin IN_2 connects the drain electrode of field effect transistor 106 and the first end of electric capacity C3500, second end of electric capacity C3500 and the first end of resistance R3514 are connected to ground altogether, second end of resistance R3514 connects the grid of field effect transistor 106, the source electrode of field effect transistor 106 connects the voltage output end of charging inlet 101, pin IN_3 and pin IN_4 are the first data input pin and the second data input pin that are connected charging inlet 101, pin OUT_0, pin OUT_1 and pin OUT_2 is the voltage output end connecting charging chip 103, pin OUT_3 and pin OUT_4 are the data output end being connected power management chip 104, pin GND_2 is the control end connecting power management chip 104, and the first end of contact resistance R3523, the second end ground connection of resistance R3523.
Preferably, the concrete model that first charging chip 103 and the second charging chip 110 adopt is SMB1357, its pin USBIN_1 and pin USBIN_2 is the voltage input end connecting charge switch 102, pin USBIN_1 is connected the first end of electric capacity C2111 with the common contact of pin USBIN_2, the second end ground connection of electric capacity C2111, pin CHGOUT_1 and pin CHGOUT_2 is the first voltage output end connecting battery 105, pin CHGOUT_1 is connected the first end of electric capacity C2112 with the common contact of pin CHGOUT_2, the second end ground connection of electric capacity C2112, pin SYSOK is data output end, pin SW_1 and pin SW_2 is the second voltage output end connecting battery 105, pin SW_1 is connected the first end of electric capacity C2106 with the common contact of pin SW_2, the first end of inductance L 2102 and the negative electrode of voltage-stabiliser tube D2103, second end of electric capacity C2106 connects pin BOOT, the plus earth of voltage-stabiliser tube D2103, second end of inductance L 2102 connects first end and the battery 105 of electric capacity C2116, the second end ground connection of electric capacity C2116.
The another kind of embodiment of the utility model also provides a kind of mobile terminal, comprises above-mentioned charging device and battery.
The utility model provides a kind of mobile terminal and charging device, and charging device comprises charging inlet, charge switch, power management chip and at least two charging chips; Because charging device is provided with two charging chips, can by the electric current mean allocation of output on these at least two charging chips when quick charge, make each charging chip can not give out a large amount of heats, avoiding the problem moving terminal temperature rising when charging, the fail safe of mobile phone use can be improved and promote Consumer's Experience; And, because power management chip can control connection between the voltage input end of charge switch and the voltage output end of described charge switch or disconnection, thus the electrical connection of charging chip and charging inlet can be disconnected where necessary, the fail safe that mobile phone uses can be improved further.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; make some equivalent alternative or obvious modification without departing from the concept of the premise utility; and performance or purposes identical, all should be considered as belonging to the scope of patent protection that the utility model is determined by submitted to claims.

Claims (10)

1. a charging device, is characterized in that, described charging device comprises charging inlet, charge switch, power management chip and at least two charging chips;
The voltage input end of described charging inlet connects external power source, the voltage output end of described charging inlet connects the voltage input end of described charge switch, the voltage output end of described charge switch connects the voltage input end of charging chip described in each, first voltage output end of charging chip described in each connects battery, and the output of described power management chip connects the control end of described charge switch;
Described power management chip controls by the control end of described charge switch to be connected between the voltage input end of described charge switch and the voltage output end of described charge switch or to disconnect.
2. charging device as claimed in claim 1, it is characterized in that, the first voltage detecting end of described power management chip connects the voltage output end of described charge switch;
Described power management chip is after detecting by described first voltage detecting end the magnitude of voltage that described charge switch exports, according to the magnitude of voltage that described charge switch exports, controlled by the control end of described charge switch to be connected between the voltage input end of described charge switch and the voltage output end of described charge switch or to disconnect.
3. charging device as claimed in claim 2, it is characterized in that, described power management chip is when the magnitude of voltage detecting that described charge switch exports is less than or equal to the first preset voltage value, and described power management chip controls the separated of the voltage input end of described charge switch and the voltage output end of described charge switch by the control end of described charge switch.
4. charging device as claimed any one in claims 1 to 3, it is characterized in that, the second voltage detecting end of described power management chip connects the voltage input end of described battery;
Described power management chip is after the input voltage value of described battery being detected by described second voltage detecting end, described power management chip, according to the input voltage value of described battery, controls by the control end of described charge switch to be connected between the voltage input end of described charge switch and the voltage output end of described charge switch or to disconnect.
5. charging device as claimed in claim 4, it is characterized in that, described power management chip is when detecting that the input voltage value of described battery is more than or equal to the second preset voltage value, and described power management chip controls the separated of the voltage input end of described charge switch and the voltage output end of described charge switch by the control end of described charge switch.
6. charging device as claimed in claim 1, it is characterized in that, the data output end of described charging inlet is connected with the data input pin of described charge switch, and the data output end of described charge switch is connected with the data input pin of described power management chip;
When the voltage output end of described charging inlet and the data output end of described charging inlet are short-circuited, described charge switch disconnects the connection of the data input pin of described charge switch and the data output end of described charge switch, or described power management chip controls the connection that described charge switch disconnects the data input pin of described charge switch and the data output end of described charge switch.
7. charging device as claimed in claim 1, it is characterized in that, described at least two charging chips comprise the first charging chip, the voltage input end of the second voltage output end connected system circuit of described first charging chip, and described first charging chip is that described battery and described circuit system are powered.
8. charging device as claimed in claim 7, it is characterized in that, described charging device also comprises the first switching device, the voltage input end of described first switching device connects the voltage output end of described battery, the voltage input end of the voltage output end connected system circuit of described first switching device, the data output end of described first charging chip connects the control end of described first switching device;
Described first charging chip be described battery and described circuit system power time, described first charging chip controls the separated of the voltage input end of described first switching device and the voltage output end of described first switching device by the control end of described first switching device.
9. charging device as claimed in claim 1, it is characterized in that, described charging device also comprises second switch device, the voltage input end of described second switch device connects the voltage output end of described charging inlet, the voltage output end of described second switch device connects the voltage input end of described charge switch, and described second switch device is in off state when input voltage is negative pressure.
10. a mobile terminal, is characterized in that, comprises charging device described in any one and battery in claim 1 to 9.
CN201420839172.3U 2014-12-24 2014-12-24 A kind of mobile terminal and charging device Active CN204376458U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108879844A (en) * 2018-06-29 2018-11-23 联想(北京)有限公司 A kind of power supply unit, method of supplying power to and electronic equipment
CN109066883A (en) * 2018-09-03 2018-12-21 Oppo广东移动通信有限公司 Charging circuit, charging method and electronic equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108879844A (en) * 2018-06-29 2018-11-23 联想(北京)有限公司 A kind of power supply unit, method of supplying power to and electronic equipment
CN109066883A (en) * 2018-09-03 2018-12-21 Oppo广东移动通信有限公司 Charging circuit, charging method and electronic equipment
CN109066883B (en) * 2018-09-03 2020-12-22 Oppo广东移动通信有限公司 Charging circuit, charging method and electronic equipment

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