CN219779794U - Mobile power supply based on lithium battery of two-wheeled electric vehicle - Google Patents
Mobile power supply based on lithium battery of two-wheeled electric vehicle Download PDFInfo
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- CN219779794U CN219779794U CN202223398187.4U CN202223398187U CN219779794U CN 219779794 U CN219779794 U CN 219779794U CN 202223398187 U CN202223398187 U CN 202223398187U CN 219779794 U CN219779794 U CN 219779794U
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- control chip
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- power supply
- chip module
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 32
- 230000005669 field effect Effects 0.000 claims description 59
- 239000003990 capacitor Substances 0.000 claims description 51
- 238000005070 sampling Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model relates to a mobile power supply based on a lithium battery of a two-wheeled electric vehicle, which comprises a lithium battery, a battery management system and a mobile power supply module, wherein the power output end of the lithium battery is connected with the power input end of the battery management system, the mobile power supply module comprises a DC-DC control chip module and a protocol chip module, the power output end of the battery management system is connected with the power input end of the DC-DC control chip module, the power output end of the DC-DC control chip module is connected with the power input end of the protocol chip module, the power output end of the protocol chip module is a TYPE-C interface, and the protocol chip module is used for outputting charging voltage and current matched with a user according to an identification signal of the user inserted by the TYPE-C interface. The utility model can output charging voltage and current matched with the electric appliance according to the type of the electric appliance, thereby being capable of matching various common electric appliances.
Description
Technical Field
The utility model relates to the technical field of lithium battery components of two-wheeled electric vehicles, in particular to a mobile power supply based on lithium batteries of two-wheeled electric vehicles.
Background
At present, most lithium batteries of two-wheeled electric vehicles can only be used as driving power sources of the electric vehicles, users can ride and go out, when using peripheral devices such as notebook computers, mobile phones and flat plates for a long time, the users need to find places to charge, and the situation that the peripheral devices such as the mobile phones and the notebook computers can face feeding and cannot be used is considered to be rare outdoor people and the places which are not necessarily charged.
Often, the user can carry the mobile power supply when going out, and the contradiction is that the large mobile power supply has enough capacity to meet the requirement that the user can use the mobile power supply outdoors for a long time, but the mobile power supply is too heavy and inconvenient to carry; the small portable power source is convenient to carry, but has small capacity and cannot be used for a long time. In addition, the mobile power supplies in the market are all ports with fixed voltage output, 5V, 12V and 24V are common, the common mobile power supply output ports are either one port for fixed voltage output or a plurality of ports for multiple voltage output, confusion is easy, and safety risks are easy to occur when users use the mobile power supplies; the output current of the common mobile power supply is uncontrollable, and potential safety hazards exist when the common mobile power supply is used in a load under-voltage state.
Disclosure of Invention
The utility model aims to provide a mobile power supply based on a lithium battery of a two-wheel electric vehicle, which can solve the problems that the lithium battery of the two-wheel electric vehicle in the prior art can only be used as a driving power supply of the two-wheel electric vehicle, the capacity and the weight of the existing mobile power supply can not meet the requirements at the same time, the output end of the mobile power supply can not output corresponding voltage according to the voltage of an electric appliance, the output current is uncontrollable, the use under underload and undervoltage conditions has potential safety hazards and the like.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the mobile power supply based on the lithium battery of the two-wheel electric vehicle comprises a lithium battery, a battery management system and a mobile power supply module, wherein the power supply output end of the lithium battery is connected with the power supply input end of the battery management system, the mobile power supply module comprises a DC-DC control chip module and a protocol chip module, the power supply output end of the battery management system is connected with the power supply input end of the DC-DC control chip module, the power supply output end of the DC-DC control chip module is connected with the power supply input end of the protocol chip module, and the DC-DC control chip module is used for converting the power supply voltage output by the battery management system into 24V output voltage and transmitting the 24V output voltage to the protocol chip module; the power output end of the protocol chip module is a TYPE-C interface, and the protocol chip module is used for outputting charging voltage and current matched with the electric appliance according to the identification signal of the electric appliance plugged in the TYPE-C interface.
In the above scheme, the DC-DC control chip module includes a DC-DC control chip, a field effect transistor Q1, a field effect transistor Q2, an inductor L1, a capacitor C2, a capacitor C3, a capacitor C4 and a capacitor C5, where a power input end of the DC-DC control chip is electrically connected to a power output end of the battery management system, the capacitor C1 and the capacitor C2 are connected in parallel, and a parallel end is connected to a power input end of the DC-DC control chip, another parallel end is grounded, an H-GATE end of the DC-DC control chip is connected to a G electrode of the field effect transistor Q1, an L-GATE end of the DC-DC control chip is connected to a G electrode of the field effect transistor Q2, an S electrode of the field effect transistor Q1 is connected to a D electrode of the field effect transistor Q2, an S electrode of the field effect transistor Q2 is grounded, one end of the inductor L1 is connected to an S electrode of the field effect transistor Q1, another end of the inductor L1 is connected to a power output end of the DC-DC control chip module, and the capacitor C4 and the capacitor C5 are connected in parallel to another parallel end.
In the above scheme, the protocol chip module comprises a protocol chip, a field effect transistor Q3, a field effect transistor Q4, a field effect transistor Q5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, an inductor L2, a sampling resistor RS1 and a TYPE-C interface, wherein the power input end of the protocol chip is connected with the power output end of the DC-DC control chip module, the capacitor C6 and the capacitor C7 are connected in parallel, a parallel end is connected with the power input end of the protocol chip, the other parallel end is grounded, the H-GATE end of the protocol chip is connected with the G electrode of the field effect transistor Q3, the L-GATE end of the protocol chip is connected with the G electrode of the field effect transistor Q4, the D electrode of the field effect transistor Q3 is connected with the power input end of the protocol chip, the S electrode of the field effect transistor Q3 is connected with the D electrode of the field effect transistor Q4, the S pole of the field effect tube Q4 is grounded, one end of the inductor L2 is connected with the S pole of the field effect tube Q3, the other end of the inductor L2 is connected with one end of the sampling resistor RS1, the other end of the sampling resistor RS1 is connected with the D pole of the field effect tube Q5, two ends of the sampling resistor RS1 are respectively connected with two current sampling ends of a protocol chip, the G pole of the field effect tube Q5 is connected with an output control signal end of the protocol chip, the S pole of the field effect tube Q5 is connected with the VBUS end of a TYPE-C interface, the grounding end of the TYPE-C interface is grounded, the capacitor C8 and the capacitor C9 are connected in parallel, a parallel end is connected with the connecting end of the inductor L2 and the sampling resistor RS1, the other parallel end is grounded, and a CC1 port and a CC2 port of the TYPE-C interface are respectively electrically connected with an identification signal input end of the protocol chip.
The utility model has the positive effects that: according to the mobile power supply based on the lithium battery of the two-wheel electric vehicle, the power supply output by the battery management system of the lithium battery of the two-wheel electric vehicle is converted into a 24V direct current power supply through the DC-DC control chip module and is transmitted to the power supply input end of the protocol chip, the level of the CC1 end and the CC2 end of the TYPE-C interface can change after the TYPE-C interface is connected with an electric appliance, the identification signal input end of the protocol chip module is electrically connected with the CC1 end and the CC2 end of the TYPE-C interface, the voltage and the current required by charging the electric appliance are determined through the identification signals input by the CC1 end and the CC2 end, and the charging voltage and the current matched with the electric appliance are output, and the voltage required by the electric appliance can be 5V, 9V, 12V, 15V and 20V.
Drawings
Fig. 1 is a schematic structural diagram of a mobile power supply based on a lithium battery of a two-wheeled electric vehicle.
Fig. 2 is a circuit configuration diagram of the DC-DC control chip module.
Fig. 3 is a circuit configuration diagram of a protocol chip module.
Description of the embodiments
The technical solutions of the present utility model will be clearly and completely described by means of examples, and it is obvious that the described examples are only some, but not all, examples of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The mobile power supply based on the lithium battery of the two-wheeled electric vehicle shown in fig. 1 comprises a lithium battery, a battery management system and a mobile power supply module, wherein the power output end of the lithium battery is connected with the power input end of the battery management system.
The lithium battery can adopt the existing lithium battery, for example, the lithium battery formed by connecting 10 to 14 lithium battery cells in series can be adopted, and the lithium battery is matched with a battery management system, namely a BMS system for short, so as to form the power battery of the two-wheeled electric vehicle. The BMS system can be applied to the existing lithium battery.
The output power supply of the lithium battery can provide power for electric devices such as motors, meters, car lamps and the like of the two-wheeled electric vehicle. Meanwhile, an output power supply of the lithium battery is also connected with a mobile power supply module.
The mobile power supply module comprises a DC-DC control chip module and a protocol chip module.
The power output end of the BMS system is connected with the power input end of the DC-DC control chip module, the power output end of the DC-DC control chip module is connected with the power input end of the protocol chip module, and the DC-DC control chip module is used for converting the power voltage output by the battery management system into 24V output voltage and transmitting the 24V output voltage to the protocol chip module; the power output end of the protocol chip module is a TYPE-C interface, and the protocol chip module is used for outputting charging voltage and current matched with the electric appliance according to the identification signal of the electric appliance plugged in the TYPE-C interface.
As shown in fig. 2, the DC-DC control chip module includes a DC-DC control chip, a field effect transistor Q1, a field effect transistor Q2, an inductor L1, a capacitor C2, a capacitor C3, a capacitor C4 and a capacitor C5, where a power input end of the DC-DC control chip is electrically connected to a power output end of the battery management system, the capacitor C1 and the capacitor C2 are connected in parallel, and a parallel end is connected to a power input end of the DC-DC control chip, another parallel end is grounded, an H-GATE end of the DC-DC control chip is connected to a G pole of the field effect transistor Q1, an L-GATE end of the DC-DC control chip is connected to a G pole of the field effect transistor Q2, an S pole of the field effect transistor Q1 is connected to a D pole of the field effect transistor Q2, an S pole of the field effect transistor Q2 is grounded, one end of the inductor L1 is connected to an S pole of the field effect transistor Q1, another end of the inductor L1 is connected to a power output end of the DC-DC control chip, another parallel end of the capacitor C4 and the capacitor C5 is connected to another parallel end of the DC control chip, and the DC-DC control chip is connected to another end of the DC control chip is connected to an identification port, and the DC-CC is connected to another end of the DC control chip is connected in parallel.
The DC-DC control chip can be selected from the existing DC-DC control chip, and in principle, any DC-DC control chip satisfying a power level of about 65W can be selected, for example, the SQ33065 chip of silsedge or the SCT82a30 chip of core state. The DC-DC control chip module is of a synchronous rectification Buck step-down topology, and can set fixed 24V voltage output.
As shown in figure 3, the protocol chip module comprises a protocol chip, a field effect transistor Q3, a field effect transistor Q4, a field effect transistor Q5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, an inductor L2, a sampling resistor RS1 and a TYPE-C interface, wherein the power input end of the protocol chip is connected with the power output end of the DC-DC control chip module, the capacitor C6 and the capacitor C7 are connected in parallel, a parallel end is connected with the power input end of the protocol chip, the other parallel end is grounded, the H-GATE end of the protocol chip is connected with the G electrode of the field effect transistor Q3, the L-GATE end of the protocol chip is connected with the G electrode of the field effect transistor Q4, the D electrode of the field effect transistor Q3 is connected with the power input end of the protocol chip, the S electrode of the field effect transistor Q3 is connected with the D electrode of the field effect transistor Q4, the S pole of the field effect tube Q4 is grounded, one end of the inductor L2 is connected with the S pole of the field effect tube Q3, the other end of the inductor L2 is connected with one end of the sampling resistor RS1, the other end of the sampling resistor RS1 is connected with the D pole of the field effect tube Q5, two ends of the sampling resistor RS1 are respectively connected with two current sampling ends of a protocol chip, the G pole of the field effect tube Q5 is connected with an output control signal end of the protocol chip, the S pole of the field effect tube Q5 is connected with the VBUS end of a TYPE-C interface, the grounding end of the TYPE-C interface is grounded, the capacitor C8 and the capacitor C9 are connected in parallel, a parallel end is connected with the connecting end of the inductor L2 and the sampling resistor RS1, the other parallel end is grounded, and a CC1 port and a CC2 port of the TYPE-C interface are respectively electrically connected with an identification signal input end of the protocol chip.
The protocol chip can be selected from the existing protocol chip, and in principle, any protocol chip having functions of PD, QC, PPS, AFC, SCP and the like can be selected, for example, a smart SW3516P chip can be selected.
When the mobile power supply based on the lithium battery of the two-wheel electric vehicle is used, the electric appliance needing to be charged is connected through the TYPE-C interface, after the electric appliance is connected with the TYPE-C interface, the levels of the CC1 and CC2 ports of the TYPE-C interface can change, different electric appliances can input different identification signals to the CC1 and CC2 ports, and according to different pulse widths of the identification signals, different voltages are output by the protocol chip, so that the TYPE-C interface outputs the voltage and the current matched with the electric appliance, and the electric appliance can be normally charged.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A mobile power supply based on two-wheeled electric motor car lithium cell, its characterized in that: the power supply output end of the lithium battery is connected with the power supply input end of the battery management system, the mobile power supply module comprises a DC-DC control chip module and a protocol chip module, the power supply output end of the battery management system is connected with the power supply input end of the DC-DC control chip module, the power supply output end of the DC-DC control chip module is connected with the power supply input end of the protocol chip module, and the DC-DC control chip module is used for converting the power supply voltage output by the battery management system into 24V output voltage and transmitting the 24V output voltage to the protocol chip module; the power output end of the protocol chip module is a TYPE-C interface, and the protocol chip module is used for outputting charging voltage and current matched with the electric appliance according to the identification signal of the electric appliance plugged in the TYPE-C interface.
2. The mobile power supply based on a lithium battery of a two-wheeled electric vehicle according to claim 1, characterized in that: the DC-DC control chip module comprises a DC-DC control chip, a field effect transistor Q1, a field effect transistor Q2, an inductor L1, a capacitor C2, a capacitor C3, a capacitor C4 and a capacitor C5, wherein the power input end of the DC-DC control chip is electrically connected with the power output end of the battery management system, the capacitor C1 and the capacitor C2 are connected in parallel, one parallel end of the capacitor C1 is connected with the power input end of the DC-DC control chip, the other parallel end of the capacitor C is grounded, the H-GATE end of the DC-DC control chip is connected with the G pole of the field effect transistor Q1, the L-GATE end of the DC-DC control chip is connected with the G pole of the field effect transistor Q2, the S pole of the field effect transistor Q1 is connected with the D pole of the field effect transistor Q2, the S pole of the field effect transistor Q2 is grounded, one end of the inductor L1 is connected with the S pole of the field effect transistor Q1, the other end of the inductor L1 is connected with the power output end of the DC-DC control chip, and the capacitor C3, the capacitor C4 and the capacitor C5 are connected with the other parallel end of the DC control chip.
3. The mobile power supply based on a lithium battery of a two-wheeled electric vehicle according to claim 1, characterized in that: the protocol chip module comprises a protocol chip, a field effect tube Q3, a field effect tube Q4, a field effect tube Q5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, an inductor L2, a sampling resistor RS1 and a TYPE-C interface, wherein the power input end of the protocol chip is connected with the power output end of the DC-DC control chip module, the capacitor C6 and the capacitor C7 are connected in parallel, one parallel end of the capacitor is connected with the power input end of the protocol chip, the other parallel end of the capacitor is grounded, the H-GATE end of the protocol chip is connected with the G electrode of the field effect tube Q3, the L-GATE end of the protocol chip is connected with the G electrode of the field effect tube Q4, the D electrode of the field effect tube Q3 is connected with the D electrode of the field effect tube Q4, one end of the inductor L2 is connected with the S electrode of the field effect tube Q3, the other end of the inductor L2 is connected with one end of the sampling resistor RS1, the other end of the VBRS 1 is connected with the other end of the DC-DC control chip, the two ends of the DC-DC control chip is connected with the DC control chip, the DC-DC control chip is connected with the C electrode of the field effect tube Q4, the DC-DC control chip is connected with the DC control chip, the DC control chip is connected with the DC-DC control chip, and the DC control chip is connected with the DC electrode of the DC electrode, and the DC-DC control chip, and the DC electrode is connected with the DC electrode, and the DC electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223398187.4U CN219779794U (en) | 2022-12-19 | 2022-12-19 | Mobile power supply based on lithium battery of two-wheeled electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223398187.4U CN219779794U (en) | 2022-12-19 | 2022-12-19 | Mobile power supply based on lithium battery of two-wheeled electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN219779794U true CN219779794U (en) | 2023-09-29 |
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| CN202223398187.4U Active CN219779794U (en) | 2022-12-19 | 2022-12-19 | Mobile power supply based on lithium battery of two-wheeled electric vehicle |
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| CN (1) | CN219779794U (en) |
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- 2022-12-19 CN CN202223398187.4U patent/CN219779794U/en active Active
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