CN220374305U - Low-voltage storage battery charging system - Google Patents
Low-voltage storage battery charging system Download PDFInfo
- Publication number
- CN220374305U CN220374305U CN202322070616.3U CN202322070616U CN220374305U CN 220374305 U CN220374305 U CN 220374305U CN 202322070616 U CN202322070616 U CN 202322070616U CN 220374305 U CN220374305 U CN 220374305U
- Authority
- CN
- China
- Prior art keywords
- voltage
- low
- unit
- power
- control module
- 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.)
- Active
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 24
- 238000012544 monitoring process Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 13
- 230000006872 improvement Effects 0.000 description 6
- 230000002950 deficient Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a low-voltage storage battery charging system, which belongs to the technical field of vehicle charging and comprises a whole vehicle control module, a low-voltage power distribution module, a low-voltage storage battery, a high-voltage control module and a high-voltage power battery; when the low-voltage storage battery is in power shortage, an external mobile power supply can provide low-voltage starting voltage for the whole vehicle controller and the high-voltage module through the power supply interface, the whole vehicle controller controls the DC-DC conversion unit to work through the high-voltage distribution unit, and the DC-DC conversion unit converts the voltage of the high-voltage power battery into the voltage of the low-voltage storage battery so as to charge the low-voltage storage battery and start the vehicle.
Description
Technical Field
The utility model belongs to the technical field of vehicle charging, and particularly relates to a low-voltage storage battery charging system.
Background
At present, new energy is in a high-speed development stage, but is subject to various problems such as battery and safety, but is increasingly serious with the reduction of non-renewable energy sources such as petroleum and the increase of air pollution, and the new energy is a trend of automobile development. With the development of new energy automobiles, the capacity of a high-voltage power battery is also higher and higher, for example, a high-capacity battery with 350-DEG electricity, 400-DEG electricity and the like, the endurance mileage of the high-voltage power battery is also higher and higher, but the capacity of a low-voltage storage battery serving as a power supply of a low-voltage component is not large, and the problem that the low-voltage storage battery is insufficient in power is extremely easy to occur under the condition that a vehicle is parked for a long time, so that the vehicle cannot be started normally.
When the low-voltage storage battery of the automobile is deficient in power, the automobile cannot be started, and the automobile needs to be started in an electricity-taking mode through an external switching power supply or other automobiles, so that the automobile is started in an auxiliary mode, the electricity-taking process is complicated, and the automobile or the switching power supply capable of being powered on cannot be found in time, so that the automobile is a defect in the prior art.
Disclosure of Invention
The utility model aims to provide a low-voltage storage battery charging system, which aims to solve the technical problems that when the low-voltage storage battery of an automobile is deficient, the electricity is taken through an external switching power supply or other vehicles, but the electricity taking process is complicated, and the vehicles or switching power supplies capable of taking electricity cannot be found in time.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a low pressure battery charging system, including whole car control module, low voltage distribution module, low voltage battery, high voltage control module and high voltage power battery, low voltage distribution module's first end is connected to outside portable power source through the power supply interface that sets up, low voltage distribution module's second end is connected to low voltage battery's first end, low voltage distribution module's third end is connected to whole car control module's first end, whole car control module's second end is connected to high voltage power battery's first end through high voltage control module, high voltage power battery's second end is connected to low voltage battery's second end through high voltage control module.
According to the technical scheme, the low-voltage power distribution module comprises a boosting unit, a power-shortage detection unit and a selection switching unit, wherein the first end of the boosting unit is connected to a power supply interface, the second end of the boosting unit is connected to the whole vehicle control module through the selection switching unit, the first end of the power-shortage detection unit is connected to a low-voltage storage battery, and the second end of the power-shortage detection unit is connected to the whole vehicle control module through the selection switching unit.
The further improvement of this technical scheme still, boost unit includes electric capacity C1, electric capacity C2, boost chip U1, inductor L1, diode D1, resistance R2, electric capacity C1 and electric capacity C2, electric capacity C1's first end is connected to the power supply interface, electric capacity C1's second ground connection, electric capacity C2 connects in parallel at electric capacity C1's both ends, electric capacity C1's first end is connected to boost chip U1's first pin and second pin, electric capacity C1's first end is connected to boost chip U1's third pin through inductor L1, boost chip U1's fourth pin ground connection, boost chip U1's third pin is connected to diode D1's positive pole, diode D1's negative pole is connected to boost chip U1's fifth pin through resistance R1 ground connection, diode D1's negative pole is connected to the selection switching element through parallelly connected electric capacity C3 and electric capacity C4 ground connection.
The technical scheme is further improved, and the booster chip U1 adopts a booster chip with the model number of AP 2008.
The technical scheme is further improved, the whole vehicle control module comprises a whole vehicle controller, a power supply monitoring unit, a communication unit and a signal monitoring unit, wherein the first end of the power supply monitoring unit is connected to the low-voltage storage battery, the second end of the power supply monitoring unit is connected to the input end of the whole vehicle controller, the first end of the signal monitoring unit is connected to an external key switch, the second end of the signal monitoring unit is connected to the input end of the whole vehicle controller, and the whole vehicle controller is connected to the high-voltage control module through the communication unit.
According to a further improvement of the technical scheme, the high-voltage control module comprises a high-voltage power distribution unit and a DC-DC conversion unit, wherein the first end of the high-voltage power distribution unit is connected to the whole vehicle controller through a communication unit, the second end of the high-voltage power distribution unit is connected to the first end of the DC-DC conversion unit, the third end of the high-voltage power distribution unit is connected to the first end of the high-voltage power battery, and the second end of the high-voltage power battery is connected to the low-voltage storage battery through the DC-DC conversion unit.
Further improvements of the technical scheme include that the power supply interface comprises a USB interface and/or a DC socket.
Further improvements of the technical scheme include that the external mobile power supply comprises a charger and/or a direct current uninterrupted power supply.
Further improvements in the present solution are that the external mobile power source comprises a mobile handset and/or a tablet computer.
Further improvement of the technical scheme is that the communication unit adopts a CAN bus.
The utility model has the beneficial effects that when the low-voltage storage battery is deficient, an external mobile power supply can provide low-voltage starting voltage for the whole vehicle controller and the high-voltage control module through the power supply interface, and the whole vehicle controller controls the DC-DC conversion unit to work through the high-voltage distribution unit, and the DC-DC conversion unit converts the voltage of the high-voltage power battery into the voltage of the low-voltage storage battery, so that the charging of the low-voltage storage battery and the starting of the vehicle are realized.
In addition, the utility model has reliable design principle, simple structure and very wide application prospect.
It can be seen that the present utility model has outstanding substantial features and significant advances over the prior art, as well as its practical advantages.
Drawings
Fig. 1 is a diagram showing the relationship of the low-voltage battery charging system.
Fig. 2 is a schematic diagram of a boosting unit.
110 is a whole vehicle control module, 111 is a whole vehicle controller, 112 is a power supply monitoring unit, 113 is a communication unit, 114 is a signal monitoring unit, 120 is a low-voltage power distribution module, 121 is a boosting unit, 122 is a power shortage detection unit, 123 is a selection switching unit, 124 is a power supply interface, 130 is a low-voltage storage battery, 140 is a high-voltage control module, 141 is a high-voltage power distribution unit, 142 is a DC-DC conversion unit, and 150 is a high-voltage power battery.
Detailed Description
The present utility model will be described in detail below by way of specific examples with reference to the accompanying drawings, the following examples being illustrative of the present utility model and the present utility model is not limited to the following embodiments.
As shown in fig. 1 and 2, the utility model provides a low-voltage storage battery charging system, which comprises a whole vehicle control module, a low-voltage distribution module, a low-voltage storage battery, a high-voltage control module and a high-voltage power battery, wherein a first end of the low-voltage distribution module is connected to an external mobile power supply through a set power supply interface, a second end of the low-voltage distribution module is connected to the first end of the low-voltage storage battery, a third end of the low-voltage distribution module is connected to the first end of the whole vehicle control module, a second end of the whole vehicle control module is connected to the first end of the high-voltage power battery through the high-voltage control module, and a second end of the high-voltage power battery is connected to the second end of the low-voltage storage battery through the high-voltage control module. The power supply interface CAN be a USB interface and/or a direct current socket, the external mobile power supply CAN be a charger and/or a direct current uninterrupted power supply and/or a mobile phone and/or a tablet personal computer, and the communication unit adopts a CAN bus.
The low-voltage power distribution module comprises a boosting unit, a power-shortage detection unit and a selection switching unit, wherein a first end of the boosting unit is connected to the power supply interface, a second end of the boosting unit is connected to the whole vehicle control module through the selection switching unit, a first end of the power-shortage detection unit is connected to the low-voltage storage battery, and a second end of the power-shortage detection unit is connected to the whole vehicle control module through the selection switching unit; the voltage boosting unit is used for boosting the external mobile power supply voltage of the power supply interface to the nominal voltage of the low-voltage storage battery, and the voltage shortage detection unit is used for detecting whether the voltage of the low-voltage storage battery meets the voltage requirement of vehicle starting; the selection switching unit is used for selecting the power supply boosted by the boosting unit or the low-voltage storage battery power supply as output to provide a low-voltage direct current power supply for the subsequent whole vehicle control module and the high-voltage control module.
Specifically, the boost unit includes a capacitor C1, a capacitor C2, a boost chip U1, an inductor L1, a diode D1, a resistor R2, a capacitor C1 and a capacitor C2, wherein a first end of the capacitor C1 is connected to the power supply interface, a second end of the capacitor C1 is grounded, the capacitor C2 is connected in parallel to two ends of the capacitor C1, the first end of the capacitor C1 is connected to a first pin and a second pin of the boost chip U1, the first end of the capacitor C1 is connected to a third pin of the boost chip U1 through the inductor L1, a fourth pin of the boost chip U1 is grounded, a third pin of the boost chip U1 is connected to an anode of the diode D1, a cathode of the diode D1 is connected to a fifth pin of the boost chip U1 through the resistor R1, a cathode of the diode D1 is grounded through the capacitor C3 and the capacitor C4 which are connected in parallel, and a cathode of the diode D1 is connected to the selection switching unit; the boost chip U1 adopts a boost chip with the model number of AP 2008.
In addition, the whole vehicle control module comprises a whole vehicle controller, a power supply monitoring unit, a communication unit and a signal monitoring unit, wherein a first end of the power supply monitoring unit is connected to the low-voltage storage battery, a second end of the power supply monitoring unit is connected to an input end of the whole vehicle controller, a first end of the signal monitoring unit is connected to an external key switch, a second end of the signal monitoring unit is connected to an input end of the whole vehicle controller, and the whole vehicle controller is connected to the high-voltage control module through the communication unit; the power supply monitoring unit is used for monitoring whether the low-voltage storage battery is in a power shortage state or not, and the signal monitoring unit is used for monitoring a key switch signal.
The high-voltage control module comprises a high-voltage power distribution unit and a DC-DC conversion unit, wherein the first end of the high-voltage power distribution unit is connected to the whole vehicle controller through a communication unit, the second end of the high-voltage power distribution unit is connected to the first end of the DC-DC conversion unit, the third end of the high-voltage power distribution unit is connected to the first end of a high-voltage power battery, and the second end of the high-voltage power battery is connected to a low-voltage storage battery through the DC-DC conversion unit; the high-voltage power distribution unit is used for distributing high-voltage direct current from the high-voltage power battery; the DC-DC conversion unit is used for converting the high-voltage direct current distributed by the high-voltage distribution unit into low-voltage direct current required by the low-voltage storage battery.
The working principle of the low-voltage storage battery charging system is as follows: the power supply interface of the low-voltage power distribution module is connected with an external mobile power supply, and a key is turned on for power-on; the low-voltage power distribution module boosts the low-voltage direct-current voltage of an external mobile power supply to the nominal voltage of the low-voltage storage battery, and the switching unit is selected to output the voltage boosted by the boosting unit or the voltage provided by the low-voltage storage battery; the whole vehicle control module detects whether the low-voltage storage battery is in a power-deficient state and whether a key signal is effective, and if the low-voltage storage battery is in the power-deficient state and the key signal is effective, a power-on instruction is sent to the high-voltage control module; the high-voltage distribution unit distributes high-voltage direct current from the high-voltage power battery, then the DC-DC conversion unit converts the high-voltage direct current distributed by the high-voltage distribution unit into low-voltage direct current required by the low-voltage storage battery, and then the low-voltage storage battery is charged and the whole vehicle low-voltage component is powered.
Further, the power shortage detection unit detects whether the voltage value of the low-voltage storage battery meets the vehicle starting requirement, specifically, the power shortage detection unit collects the voltage value V of the low-voltage storage battery and judges with the vehicle starting requirement voltage Vth; if V > =Vth, the voltage of the low-voltage storage battery meets the vehicle starting requirement, and the selection switching unit selects and outputs the voltage from the low-voltage storage battery to supply power for the subsequent whole vehicle control module and the high-voltage control module; if V is less than Vth, the voltage of the low-voltage storage battery does not meet the vehicle starting requirement, the low-voltage storage battery is judged to be in a power shortage state, and the selection switching unit selects the power supply boosted by the output boosting unit to supply power for the subsequent whole vehicle control module and the high-voltage control module.
The foregoing disclosure is merely illustrative of the preferred embodiments of the utility model and the utility model is not limited thereto, since modifications and variations may be made by those skilled in the art without departing from the principles of the utility model.
Claims (10)
1. The utility model provides a low pressure battery charging system, a serial communication port, including whole car control module, low voltage distribution module, low voltage battery, high voltage control module and high voltage power battery, low voltage distribution module's first end is connected to outside portable power source through the power supply interface that sets up, low voltage distribution module's second end is connected to low voltage battery's first end, low voltage distribution module's third end is connected to whole car control module's first end, whole car control module's second end is connected to high voltage power battery's first end through high voltage control module, high voltage power battery's second end is connected to low voltage battery's second end through high voltage control module.
2. The low-voltage battery charging system of claim 1, wherein the low-voltage distribution module comprises a boost unit, a power-shortage detection unit and a selection switching unit, a first end of the boost unit is connected to the power supply interface, a second end of the boost unit is connected to the vehicle control module through the selection switching unit, a first end of the power-shortage detection unit is connected to the low-voltage battery, and a second end of the power-shortage detection unit is connected to the vehicle control module through the selection switching unit.
3. The low voltage battery charging system according to claim 2, wherein the boost unit comprises a capacitor C1, a capacitor C2, a boost chip U1, an inductor L1, a diode D1, a resistor R2, a capacitor C1 and a capacitor C2, a first end of the capacitor C1 is connected to the power supply interface, a second end of the capacitor C1 is grounded, the capacitor C2 is connected in parallel to both ends of the capacitor C1, the first end of the capacitor C1 is connected to the first pin and the second pin of the boost chip U1, the first end of the capacitor C1 is connected to the third pin of the boost chip U1 through the inductor L1, the fourth pin of the boost chip U1 is grounded, the third pin of the boost chip U1 is connected to the positive electrode of the diode D1, the negative electrode of the diode D1 is connected to the fifth pin of the boost chip U1 through the resistor R2, the negative electrode of the diode D1 is grounded through the capacitor C3 and the capacitor C4 connected in parallel, and the negative electrode of the diode D1 is connected to the selection switching unit.
4. The low-voltage battery charging system according to claim 3, wherein the booster chip U1 is a booster chip of a model AP 2008.
5. The low-voltage battery charging system of claim 1, wherein the vehicle control module comprises a vehicle controller, a power supply monitoring unit, a communication unit and a signal monitoring unit, wherein a first end of the power supply monitoring unit is connected to the low-voltage battery, a second end of the power supply monitoring unit is connected to an input end of the vehicle controller, a first end of the signal monitoring unit is connected to an external key switch, a second end of the signal monitoring unit is connected to an input end of the vehicle controller, and the vehicle controller is connected to the high-voltage control module through the communication unit.
6. The low voltage battery charging system of claim 5, wherein the high voltage module comprises a high voltage power distribution unit and a DC-DC conversion unit, a first end of the high voltage power distribution unit is connected to the vehicle controller through the communication unit, a second end of the high voltage power distribution unit is connected to the first end of the DC-DC conversion unit, a third end of the high voltage power distribution unit is connected to the first end of the high voltage power battery, and a second end of the high voltage power battery is connected to the low voltage battery through the DC-DC conversion unit.
7. The low voltage battery charging system of claim 1, wherein the power supply interface comprises a USB interface and/or a dc outlet.
8. The low voltage battery charging system of claim 1, wherein the external mobile power source comprises a charger and/or a dc uninterruptible power supply.
9. The low voltage battery charging system of claim 1, wherein the external mobile power source comprises a mobile handset and/or a tablet computer.
10. The low voltage battery charging system of claim 1, wherein the communication unit employs a CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322070616.3U CN220374305U (en) | 2023-08-02 | 2023-08-02 | Low-voltage storage battery charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322070616.3U CN220374305U (en) | 2023-08-02 | 2023-08-02 | Low-voltage storage battery charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220374305U true CN220374305U (en) | 2024-01-23 |
Family
ID=89572783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322070616.3U Active CN220374305U (en) | 2023-08-02 | 2023-08-02 | Low-voltage storage battery charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220374305U (en) |
-
2023
- 2023-08-02 CN CN202322070616.3U patent/CN220374305U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102083665B (en) | Power storage device for hybrid or electric motor vehicles, and associated electric power management method thereof | |
| CN103051039A (en) | High-voltage battery charge system and charger therefor | |
| CN209159633U (en) | A kind of stand-by power supply circuit, device and the automobile of automotive ignition system | |
| CN103795115A (en) | Portable vehicle-mounted stand-by electric source | |
| CN105416069B (en) | A kind of power supply for electric car | |
| CN103117583A (en) | Full-automatic low static power consumption charger | |
| CN207074883U (en) | A kind of auxiliary source power supply circuit of Portable direct-current input equipment | |
| CN206524651U (en) | A kind of Intelligent charge control device of hybrid power passenger car system | |
| CN219086837U (en) | Electric automobile super quick charge awakens up and detection circuit | |
| CN220374305U (en) | Low-voltage storage battery charging system | |
| CN205059486U (en) | It opens and stops electrical power generating system to mix car idling a little | |
| CN113910956B (en) | Electric vehicle and vehicle-mounted charger, charging system and charging method thereof | |
| CN203722298U (en) | Portable vehicle standby power supply | |
| CN206962696U (en) | A kind of low electric flyback sourse circuit suitable for onboard system | |
| CN207603446U (en) | A kind of 200W DC-DC converters | |
| CN213279204U (en) | Bidirectional power supply conversion control system | |
| CN217388271U (en) | Energy storage system | |
| CN215513320U (en) | New energy automobile power supply system | |
| CN221305546U (en) | Emergency starting power supply with external storage battery charging function | |
| CN212195113U (en) | AC/DC charging device | |
| CN220307003U (en) | BMS power supply circuit of emergency power supply system | |
| CN220914951U (en) | Energy storage power supply and energy storage system | |
| CN220785470U (en) | Multifunctional vehicle-mounted charger circuit | |
| CN220700909U (en) | Storage battery power supply system of vehicle generator | |
| CN214138295U (en) | Charge rifle CP signal generation and detection circuitry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |