CN203800643U - Vehicle charger and vehicle with same - Google Patents
Vehicle charger and vehicle with same Download PDFInfo
- Publication number
- CN203800643U CN203800643U CN201420058282.6U CN201420058282U CN203800643U CN 203800643 U CN203800643 U CN 203800643U CN 201420058282 U CN201420058282 U CN 201420058282U CN 203800643 U CN203800643 U CN 203800643U
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- onboard charger
- electron device
- portable electron
- voltage
- loadtype
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Abstract
The utility model relates to a vehicle charger and a vehicle with the same. The vehicle charger is used for charging a portable electronic device, and comprises a power management chip. The power management chip comprises a load type detection circuit and a voltage regulation circuit. The load type detection circuit is used for judging charging voltage required by the portable electronic device. The voltage regulation circuit is electrically connected with the load type detection circuit, and is used for regulating charging voltage output by the vehicle charger according to the charging voltage required by the portable electronic device. By adopting the vehicle charger and the vehicle with the same of the utility model, the time for charging the portable electronic device can be effectively shortened.
Description
Technical field
The utility model relates to charging technique field, relates in particular to onboard charger and has the vehicle of this onboard charger.
Background technology
Extensive use along with portable electron device (as smart mobile phone, panel computer etc.), owing to there is technical bottleneck in the battery of portable electron device, the flying power of battery is very limited, and onboard charger is as the common tool of portable electron device charging, and its effect more and more highlights.
Fig. 1 illustrates the configuration diagram into existing a kind of onboard charger.Refer to Fig. 1, existing onboard charger 10 comprises power management chip 12, in power management chip 12, be provided with reduction voltage circuit 122, power management chip 12 can pass through USB(Universal Serial Bus, USB) port and portable electron device 100 electric connections.The DC input voitage of onboard charger 10 is 12V(volt) or 24V, reduction voltage circuit 122 is converted to 5V Voltage-output by described DC input voitage, so that portable electron device 100 is charged.
Yet; 10 of existing onboard chargers are supported the charging voltage output of 5V; consider and on USB cable, conventionally have 200mohm(milliohm) impedance; if it is 1A(ampere that onboard charger 10 can provide maximum charging current); efficiency (85% left and right) in conjunction with the charge inside circuit of the loss on USB cable and portable electron device 100; when the cell voltage of portable electron device 100 is 3.7V; the charging current of battery is at 1.1A left and right ((5V-0.2V) * 1A*85%/3.7V=1.1A, wherein 0.2V=200mohm*10
-3* 1A); When if the battery capacity of portable electron device 100 is 4000～6000mAh(milliampere), whole charging process needs 6～8 hours.Even if adopt the battery of 10 pairs of portable electron devices 100 of onboard charger to carry out of short duration continuation of the journey, be charged to 30% of whole battery electric quantity, also need more than more than 2 hour, the whole charging interval is long.In addition, even onboard charger 10 can provide maximum charging current be 2A or more than, the charging input end of considering portable electron device 100 arrives internal cell channel impedance greatly about 150mohm, from onboard charger 10, output to the MOSFET(Metal-Oxide-Semiconductor Field-Effect Transistor the cell channel of portable electron device 100 inside, metal-oxide half field effect transistor) loss will, more than 0.7V, be also that voltage falls at least more than 0.7V; If the impedance on USB cable is bigger than normal or onboard charger 10 output voltages are on the low side more again, there will be onboard charger 10 to be recharged long especially phenomenon of time, being even difficult to support is that 4.35V battery is full of by maximum charge final voltage.
Utility model content
The utility model provides a kind of onboard charger, can effectively shorten the charging interval to portable electron device.
The utility model also provides a kind of vehicle with onboard charger, can effectively shorten the charging interval to portable electron device.
The utility model proposes a kind of onboard charger, be used to portable electron device charging, described onboard charger comprises power management chip.Described power management chip comprises loadtype testing circuit and voltage regulator circuit, and described loadtype testing circuit is for judging the charging voltage that described portable electron device is required.Described voltage regulator circuit and described loadtype testing circuit are electrically connected, for regulate the charging voltage of described onboard charger output according to the required charging voltage of described portable electron device.
In an embodiment of the present utility model, described loadtype testing circuit and described portable electron device all support high pass to fill soon that agreement, Samsung fill agreement soon and Lian Fake fills agreement soon.
In an embodiment of the present utility model, described onboard charger is electrically connected by USB port and described portable electron device.
In an embodiment of the present utility model, described USB port has supply pin and two signal pins, and described loadtype testing circuit and described voltage regulator circuit are all electrically connected with described supply pin and described signal pin.
In an embodiment of the present utility model, described USB port also has grounding leg, and described power management chip and described grounding leg are electrically connected.
The utility model also proposes a kind of vehicle with onboard charger, it comprises electric supply installation and onboard charger, described electric supply installation is used to described onboard charger that input voltage is provided, described onboard charger is used to portable electron device charging, and described onboard charger comprises power management chip.Described power management chip comprises loadtype testing circuit and voltage regulator circuit, and described loadtype testing circuit is for judging the charging voltage that described portable electron device is required.Described voltage regulator circuit and described loadtype testing circuit are electrically connected, for the input voltage of described electric supply installation being converted to the required charging voltage of described portable electron device.
In an embodiment of the present utility model, described vehicle is automobile, motorcycle or electric motor car.
In an embodiment of the present utility model, the input voltage of described electric supply installation is 12 volts or 24 volts.
In an embodiment of the present utility model, the required charging voltage of described portable electron device is 5 volts, 7 volts, 9 volts, 12 volts or 20 volts.
In an embodiment of the present utility model, described electric supply installation is car battery.
At onboard charger of the present utility model and have in the vehicle of this onboard charger, because onboard charger inside is provided with loadtype testing circuit and voltage regulator circuit, loadtype testing circuit can judge the charging voltage that portable electron device is required, voltage regulator circuit regulates the charging voltage of onboard charger output according to this charging voltage, thereby the charging voltage grade of onboard charger output can be set arbitrarily according to the actual requirements, can realize high-voltage charging, increase charge power, shorten the charging interval.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other objects, features and advantages of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 illustrates the configuration diagram into existing a kind of onboard charger.
Fig. 2 illustrates the configuration diagram into onboard charger of the present utility model.
Fig. 3 illustrates the onboard charger of vehicle and the configuration diagram of electric supply installation that has onboard charger for of the present utility model.
Embodiment
For further setting forth the utility model, be to reach technological means and the effect that predetermined utility model object is taked, below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect to according to the utility model proposes, be described in detail as follows.
Fig. 2 illustrates the configuration diagram into onboard charger of the present utility model.Refer to Fig. 2, onboard charger 20 of the present utility model is used to portable electron device 200 chargings, and it comprises power management chip 22, and power management chip 22 comprises loadtype testing circuit 222 and voltage regulator circuit 223.Wherein, loadtype testing circuit 222 can support high pass to fill soon that agreement, Samsung fill agreement soon and Lian Fake fills agreement soon, for the charging voltage that judges that portable electron device 200 is required.Voltage regulator circuit 223 is electrically connected with loadtype testing circuit 222, for regulate the output voltage of onboard charger 20 according to the required charging voltage of portable electron device 200 of loadtype testing circuit 222 judgement gained, make the output voltage of onboard charger 20 meet the charging voltage demand of portable electron device 200.
More specifically, portable electron device 200 can be mobile phone, panel computer, PDA(Personal Digital Assistant, personal digital assistant) or GPS(Global Position System, global positioning system) device, but not as limit.Portable electron device 200 also supports high pass to fill soon that agreement, Samsung fill agreement soon and Lian Fake fills agreement soon.
Onboard charger 20 is electrically connected by USB port 202 and portable electron device 200, USB port 202 has supply pin VBUS, grounding leg GND and two signal pin D+(Digital Positive), D-(Digital Minus), loadtype testing circuit 222 and voltage regulator circuit 223 are all electrically connected with supply pin VBUS and two signal pin D+, D-, and power management chip 22 is electrically connected with grounding leg GND.The input voltage that vehicle provides to onboard charger 20 is generally 12V or 24V, and after voltage regulator circuit 223 regulates, the charging voltage of onboard charger 20 outputs can be 5V, 7V, 9V, 12V or 20V.
It should be noted that, in the present embodiment, loadtype testing circuit 222 and portable electron device 200 all can support high pass to fill soon agreement simultaneously, Samsung fills soon agreement and Lian Fake fills agreement soon, but the utility model is not as limit, in other embodiments, loadtype testing circuit 222 and portable electron device 200 can support high pass to fill soon agreement, Samsung fill soon agreement and Lian Fake fill soon these three kinds of agreements of agreement wherein one of at least, and loadtype testing circuit 222 and the supported agreement of portable electron device 200 have corresponding relation, for example, when loadtype testing circuit 222 supports that high pass is filled agreement soon, portable electron device 200 is also corresponding supports high pass to fill soon agreement, so, onboard charger 20 can be realized and portable electron device 200 communications, with the required charging voltage grade of judgement portable electron device 200.It is for example high pass QC2.0(Quick Charge2.0 that high pass is filled agreement soon) fill soon agreement, Samsung fills soon agreement and for example for Samsung FC, fills soon agreement, but not as limit.
The operation principle of onboard charger 20 is:
When using onboard charger 20 to be portable electron device 200 charging, vehicle provides the input voltage of 12V or 24V for onboard charger 20, onboard charger 20 is first to supply pin VBUS input 5V voltage, portable electron device 200 determines the change in voltage on supply pin VBUS, and first according to BC1.2(Battery Charging1.2) charging standard detects, and judges whether the special-purpose USB charge port of USB communication port or the computer of special charger or computer.After if judgement is special charger, because portable electron device 200 support high passes are filled agreement soon, Samsung fills soon agreement and Lian Fake fills agreement soon, portable electron device 200 can change two signal pin D+ in USB port, the voltage of D-, or change the electric current on supply pin VBUS, and be integrated with in onboard charger 20, support high pass to fill soon agreement, Samsung fills soon agreement and Lian Fake fills the loadtype testing circuit 222 of agreement soon, loadtype testing circuit 222 is easy to determine curent change or two the signal pin D+ of supply pin VBUS, change in voltage on D-, and according to the voltage of definite which kind of grade that need to above export to supply pin VBUS of corresponding standard.The corresponding charging voltage of electric pressure regulation output that need to above export to supply pin VBUS that voltage regulator circuit 223 is determined according to loadtype testing circuit 222, thus realize high-voltage charging.
Particularly, the DC input voitage that vehicle provides for onboard charger 20 is 12V or 24V, DC input voitage is after voltage regulator circuit 223 conversions, the 5V DC charging voltage of exportable routine, the DC charging voltage of a series of high value classes such as exportable 7V, 9V, 12V or 20V also, improve peak power output, and then improve the charging current of portable electron device 200, shorten the charging interval.
As follows by regulating charging voltage can shorten the cause description in 200 charging intervals of portable electron device why:
Take onboard charger 20 can output voltage 9V, output current 2.1A, power output P1 '=9V*2.1A=18.9W(watt) be example, with existing onboard charger 10(referring to Fig. 1) output voltage 5V, output current 2.1A, power output P2 '=5V*2.1A=10.5W comparison, consider the USB line loss of 0.88W, the getable maximum output charge power of portable electron device 200 is respectively P1=18.9-0.88=18.02W and P2=10.5-0.88=9.62W, and maximum output charge power improves (P1-P2)/P2=87.3%.If the maximum charging current that in two kinds of situations, portable electron device 200 charge inside circuit efficiencies approach and charge inside circuit can allow is enough large, suppose the corresponding constant current charge stream of output voltage 9V, output current 2.1A I1, charging interval during voltage U is T1, and the corresponding constant current charge stream of output voltage 5V, output current 2.1A I2, charging interval during voltage U is T2; And can draw according to formula electric weight Q=IT and power P=UI, in the situation of portable electron device 200 constant current charges, savable charging interval ratio is (T2-T1)/T2=(P1-P2)/P1=87.3/187.3=46.6%.
With respect to prior art, if USB cable impedance is higher in prior art, or onboard charger 20 output voltages (such as being 4.75V) on the low side, onboard charger 10(is referring to Fig. 1) charging interval can significantly elongate even and be not fully filled; And in the utility model, because the charging voltage to portable electron device 200 charge inside circuit inputs can, far above the maximum charging voltage of the battery of portable electron device 200, shorten the charging interval and can avoid the situation that battery is not fully filled to occur.
It should be noted that, the present embodiment has only been listed conventional 7V/9V/12V/20V etc. higher than 5V and by high pass, has been filled soon agreement, Samsung and fill soon agreement and Lian Fake and fill soon agreement and support " high pressure " charge point, but the utility model does not limit the charging voltage value of onboard charger 20 outputs, and the utility model also can adopt new high-voltage charging agreement and different high charge magnitudes of voltage.
Fig. 3 illustrates the onboard charger of vehicle and the configuration diagram of electric supply installation that has onboard charger for of the present utility model.Refer to Fig. 3, the vehicle 30 with onboard charger can be automobile, for example, be car, truck or passenger vehicle, but not as limit, also can be motorcycle or electric motor car, according to actual demand, determines.The vehicle 30 with onboard charger comprises electric supply installation 32 and onboard charger 20, electric supply installation 32 is car battery, it can be the input voltage that onboard charger 20 provides 12V or 24V, the structure composed of onboard charger 20 and operation principle are identical with structure composed and the operation principle of onboard charger 20 in Fig. 2, the charging voltage of loadtype testing circuit 222 for judging that portable electron device 200 is required; Voltage regulator circuit 223 is electrically connected with loadtype testing circuit 222, for the input voltage of electric supply installation 32 being converted to the required charging voltage of portable electron device 200.
It should be noted that, voltage regulator circuit 223 has the two-way regulating function of the adjusting of boosting and reduction regulation, for example, when the input voltage that electric supply installation 32 provides for onboard charger 20 is 12V, if the required charging voltage of portable electron device 200 is 20V, voltage regulator circuit 223 can be adjusted to 20V by the charging voltage of onboard charger 20 outputs, realizes the adjusting of boosting; If the required charging voltage of portable electron device 200 is 9V, voltage regulator circuit 223 can be adjusted to 9V by the charging voltage of onboard charger 20 outputs, realizes reduction regulation.
In sum, the utility model onboard charger and have advantages of that the vehicle of this onboard charger at least has following:
1. at onboard charger of the present utility model and have in the vehicle of this onboard charger, because onboard charger inside is provided with loadtype testing circuit and voltage regulator circuit, loadtype testing circuit can judge the charging voltage that portable electron device is required, voltage regulator circuit regulates the charging voltage of onboard charger output according to this charging voltage, thereby the charging voltage grade of onboard charger output can be set arbitrarily according to the actual requirements, can realize high-voltage charging, increase charge power, shorten the charging interval.
2. onboard charger of the present utility model and having in the embodiment of vehicle of this onboard charger, the loadtype testing circuit of onboard charger and portable electron device all support high pass to fill soon that agreement, Samsung fill agreement soon and Lian Fake fills agreement soon simultaneously, thereby realize the mutual communication between onboard charger and portable electron device, facilitate confirmation above to input the high pressure of which kind of grade to supply pin VBUS.
3. onboard charger of the present utility model and having in the embodiment of vehicle of this onboard charger, the voltage regulator circuit of onboard charger has the two-way regulating function of the adjusting of boosting and reduction regulation, by the regulating action of voltage regulator circuit, the exportable charging voltage higher than input voltage of onboard charger, also the exportable charging voltage lower than input voltage, to meet the charging demand of different types of portable electron device.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solutions of the utility model content, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. an onboard charger (20), be used to portable electron device (200) charging, described onboard charger (20) comprises power management chip (22), it is characterized in that, described power management chip (22) comprises loadtype testing circuit (222) and voltage regulator circuit (223), described loadtype testing circuit (222) is for judging the required charging voltage of described portable electron device (200), described voltage regulator circuit (223) is electrically connected with described loadtype testing circuit (222), for regulate the charging voltage of described onboard charger (20) output according to the required charging voltage of described portable electron device (200).
2. onboard charger as claimed in claim 1 (20), is characterized in that: described loadtype testing circuit (222) and described portable electron device (200) all support high pass to fill soon that agreement, Samsung fill agreement soon and Lian Fake fills agreement soon.
3. onboard charger as claimed in claim 1 (20), is characterized in that: described onboard charger (20) is electrically connected by USB port (202) and described portable electron device (200).
4. onboard charger as claimed in claim 3 (20), it is characterized in that: described USB port (202) has supply pin (VBUS) and two signal pins (D+, D-), described loadtype testing circuit (222) and described voltage regulator circuit (223) are all electrically connected with described supply pin (VBUS) and described signal pin (D+, D-).
5. onboard charger as claimed in claim 4 (20), is characterized in that: described USB port (202) also has grounding leg (GND), and described power management chip (22) is electrically connected with described grounding leg (GND).
6. a vehicle (30) with onboard charger, it comprises electric supply installation (32) and onboard charger (20), described electric supply installation (32) is used to described onboard charger (20) that input voltage is provided, described onboard charger (20) is used to portable electron device (200) charging, described onboard charger (20) comprises power management chip (22), it is characterized in that, described power management chip (22) comprises loadtype testing circuit (222) and voltage regulator circuit (223), described loadtype testing circuit (222) is for judging the required charging voltage of described portable electron device (200), described voltage regulator circuit (223) is electrically connected with described loadtype testing circuit (222), for the input voltage of described electric supply installation (32) is converted to the required charging voltage of described portable electron device (200).
7. the vehicle (30) with onboard charger as claimed in claim 6, is characterized in that: described vehicle (30) is automobile, motorcycle or electric motor car.
8. the vehicle (30) with onboard charger as claimed in claim 6, is characterized in that: the input voltage of described electric supply installation (32) is 12 volts or 24 volts.
9. the vehicle (30) with onboard charger as claimed in claim 6, is characterized in that: the required charging voltage of described portable electron device (200) is 5 volts, 7 volts, 9 volts, 12 volts or 20 volts.
10. the vehicle (30) with onboard charger as claimed in claim 6, is characterized in that: described electric supply installation (32) is car battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420058282.6U CN203800643U (en) | 2014-02-07 | 2014-02-07 | Vehicle charger and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420058282.6U CN203800643U (en) | 2014-02-07 | 2014-02-07 | Vehicle charger and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800643U true CN203800643U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420058282.6U Expired - Fee Related CN203800643U (en) | 2014-02-07 | 2014-02-07 | Vehicle charger and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490338A (en) * | 2015-12-28 | 2016-04-13 | 华晨汽车集团控股有限公司 | Vehicle charging apparatus |
| CN105975038A (en) * | 2016-04-27 | 2016-09-28 | 北京小米移动软件有限公司 | Prompt method and device of charging port detection result |
-
2014
- 2014-02-07 CN CN201420058282.6U patent/CN203800643U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490338A (en) * | 2015-12-28 | 2016-04-13 | 华晨汽车集团控股有限公司 | Vehicle charging apparatus |
| CN105975038A (en) * | 2016-04-27 | 2016-09-28 | 北京小米移动软件有限公司 | Prompt method and device of charging port detection result |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140827 Termination date: 20170207 |