CN221366671U - Intelligent control device for on-off of charging circuit - Google Patents
Intelligent control device for on-off of charging circuit Download PDFInfo
- Publication number
- CN221366671U CN221366671U CN202322986432.1U CN202322986432U CN221366671U CN 221366671 U CN221366671 U CN 221366671U CN 202322986432 U CN202322986432 U CN 202322986432U CN 221366671 U CN221366671 U CN 221366671U
- Authority
- CN
- China
- Prior art keywords
- module
- unit
- current
- monitoring unit
- control device
- 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
- 238000012544 monitoring process Methods 0.000 claims abstract description 64
- 238000002955 isolation Methods 0.000 claims abstract description 44
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an intelligent control device for on-off of a charging circuit, which comprises an input voltage monitoring unit, an output voltage monitoring unit, a current monitoring unit, an output switch unit, a DC/DC module, a first LDO module, a second LDO module, an MCU processor, a buzzer, an LCD display unit, a key unit, a USB interface, a first AD isolation module and a second AD isolation module. The control device monitors whether the voltage and current values in the charging circuit reach the set upper limit in real time by utilizing the input voltage monitoring unit, the output voltage monitoring unit and the current monitoring unit, and the MCU processor controls the output switch unit to intelligently cut off the circuit, so that the electric separation between the vehicle and the charger is realized, and the charging safety of the single-wheel or double-wheel electric scooter is improved.
Description
Technical Field
The utility model relates to the technical field of electric vehicle charging, in particular to an intelligent control device for on-off of a charging circuit.
Background
Currently, single-wheel or two-wheel electric scooter is a mainstream short travel tool for people at present, wherein the single-wheel is represented by an electric monocycle, and the two-wheel is represented by an electric scooter and Ebike. The single-wheel or double-wheel electric scooter adopts the battery/accumulator as a power source, is suitable for short-distance traffic in cities, and is greatly convenient for people to travel. However, such electric vehicles typically have a small battery capacity, such as 36V, 48V, etc., such that the driving range is short, and the user needs to charge the vehicle frequently. But people use the car in the daytime and charge at night in general, and few people can fill the bed at night to pull out the power plug, and in the process, once accidents occur, the accidents of charging and ignition can occur. In fact, most cases of battery fires occur during charging. In addition, the battery is charged to 100% for a long time, so that the aging speed of the battery is accelerated, and the service life of the battery is reduced.
In addition, the quality of the car charger that takes the place of walk in the market is good and bad, when using the bad car charger that takes the place of walk, to battery/storage battery's charging procedure and life-span, produce great influence, the conflagration of bringing about from this is more frequent.
From the viewpoints of improving safety and prolonging battery life, it is sufficient to charge the battery to about 90% at a time. Therefore, the intelligent control device should be provided to turn off the charger in time after the end of charging.
Disclosure of utility model
In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its main objective is to provide an intelligent control device for on-off of a charging circuit, which monitors whether the voltage and current values in the charging circuit reach the set upper limit in real time, and controls the output switch unit to intelligently cut off the circuit by the MCU processor, so as to realize electrical isolation between the vehicle and the charger, thereby improving the charging safety of the single-wheel or double-wheel electric scooter.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The intelligent control device comprises an input voltage monitoring unit, an output voltage monitoring unit, a current monitoring unit, an output switch unit, a DC/DC module, a first LDO module, a second LDO module, an MCU processor, a buzzer, an LCD display unit, a key unit, a USB interface, a first AD isolation module and a second AD isolation module, wherein the key unit is used for inputting cut-off voltage and protection current parameters and sending the cut-off voltage and protection current parameters to the MCU processor; the current monitoring unit and the output switch unit are sequentially connected in series in the power supply circuit; the first LDO module and the second LDO module are sequentially connected with the DC/DC module; the second AD isolation module is connected between the first LDO module and the input voltage monitoring unit; the first AD isolation module is connected between the first LDO module and the output voltage monitoring unit; the current monitoring unit is connected with the first LDO module; the buzzer, the LCD display unit, the key unit, the USB interface and the MCU processor are respectively connected with the second LDO module; the first AD isolation module, the second AD isolation module, the buzzer, the LCD display unit, the key unit, the USB interface and the output switch unit are respectively connected with the MCU processor, and the current monitoring unit is connected with the first AD isolation module; and the MCU processor is provided with a full cut-off current value, and when the current voltage reaches the cut-off voltage, the current reaches the protection current or the current reaches the full cut-off current value, the MCU processor controls the output switch unit to disconnect the charging circuit.
As a preferred embodiment: the MCU processor is provided with an AD1_1 end, an AD2_2 end, an AD3_3 end, a PWM end, an I2C end, an I/O end, a USB end and a G end; the AD1_1 end and the AD2_2 end are correspondingly connected with the first AD isolation module; the AD 3-3 end is connected with the second AD isolation module; the PWM end is connected with the buzzer; the I2C end is connected with the LCD display unit; the I/O end is connected with the key unit; the USB end is connected with the USB interface; and the G end is connected with the output switch unit.
As a preferred embodiment: the output voltage of the first LDO module is 5V; the output voltage of the second LDO module is 3.3V.
As a preferred embodiment: the output switch unit is a MOS switch.
As a preferred embodiment: the system also comprises a storage module for storing the monitored data information, and the storage module is connected with the MCU processor.
As a preferred embodiment: the wireless connection module can be in wireless interconnection with the APP, and the wireless connection module is connected with the MCU processor.
As a preferred embodiment: the charge cut-off voltage range is 30-140V.
As a preferred embodiment: the charging protection current ranges from 1 to 30A.
As a preferred embodiment: the full off current is less than 300ma.
Compared with the prior art, the intelligent control device has obvious advantages and beneficial effects, and particularly, according to the technical scheme, the intelligent control device for switching on and off of the charging circuit of the single-wheel or double-wheel electric scooter is formed by connecting the input voltage monitoring unit, the output voltage monitoring unit, the current monitoring unit, the output switch unit, the DC/DC module, the first LDO module, the second LDO module, the MCU processor, the buzzer, the LCD display unit, the key unit, the USB interface, the first AD isolation module and the second AD isolation module, and can monitor whether one of the voltage and the current value in the charging circuit reaches the set upper limit in real time, if so, the intelligent cut-off is performed, so that the electric isolation is realized between the scooter and the charger, and the charging safety of the single-wheel or double-wheel electric scooter is improved.
In order to more clearly illustrate the structural features and efficacy of the present utility model, a detailed description thereof will be given below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of the control device of the present utility model;
FIG. 2 is a schematic diagram of the connection of the control device of the present utility model with a charger and a battery;
FIG. 3 is a schematic perspective view of the control device of the present utility model.
The attached drawings are used for identifying and describing:
10. A body; 11. an LCD display unit; 12. and a key unit.
Detailed Description
The utility model discloses a charging circuit on-off intelligent control device, as shown in fig. 1 to 3, which comprises an input voltage monitoring unit, an output voltage monitoring unit, a current monitoring unit, an output switch unit, a DC/DC module, a first LDO module, a second LDO module, an MCU processor, a buzzer, an LCD display unit, a key unit, a USB interface, a first AD isolation module and a second AD isolation module, wherein:
the input voltage monitoring unit is used for monitoring the voltage input by the current charger, if the charger has a problem, the LCD display unit displays data, and the MCU processor controls the buzzer to sound for reminding.
The output voltage monitoring unit is used for monitoring the charging voltage of the current single-wheel or double-wheel electric scooter, sending the charging voltage to the MCU processor through the first AD isolation module, displaying data through the display unit, and controlling the buzzer to sound and remind through the MCU processor.
The current monitoring unit is used for monitoring the current in the power supply line, sending the current to the MCU processor through the first AD isolation module, displaying data through the display unit, and controlling the buzzer to sound and remind through the MCU processor.
And the monitoring information of the input/output voltage monitoring unit and the current monitoring unit is fed back to the MCU processor, and the MCU processor controls the output switching unit to trigger the cutting-off of the whole circuit.
The DC/DC module is used for converting the power supply line voltage to 15V.
The first LDO module is used for converting the voltage output by the DC/DC module into 5V (the output voltage of the first LDO module is 5V) so as to supply power for the first AD isolation module, the second AD isolation module and the current monitoring unit.
The second LDO module is used for converting the output voltage of the first LDO module into 3.3V (the output voltage of the second LDO module is 3.3V) so as to supply power for the MCU processor, the buzzer, the LCD display unit, the key unit and the USB interface.
The MCU processor is used for receiving the parameter information fed back by each monitoring unit and controlling the running of the buzzer, the LCD display unit, the key unit, the USB interface and the output switch unit; and a full cut-off current value is set in the MCU processor.
The buzzer is used as a reminding module, and can carry out alarm reminding when charging starts and one of charging voltage and charging current exceeds the limit.
The LCD display unit is used for displaying the current charging voltage, current, power, time, energy consumption and other information.
The key unit is used for manually setting cut-off voltage and protection current as well as power and time parameters, and a user can set specific cut-off voltage and protection current values through keys according to different vehicles.
The USB interface is used for connecting the memory to download and store charging data or to update the system of the control device.
The first AD isolation module is used for isolating interference signals, noise and the like in the circuit so as to avoid influencing signal monitoring of the output voltage monitoring unit and the current monitoring unit.
The second AD isolation module is used for isolating interference signals, noise and the like in the circuit so as to avoid influencing signal monitoring of the input voltage monitoring unit.
The specific connection relation between each unit and each module is as follows:
The input voltage monitoring unit and the DC/DC module are respectively connected in parallel with the input end of a power supply circuit (a connecting circuit between a single-wheel or double-wheel electric scooter charger and a single-wheel or double-wheel electric scooter battery, as shown in figure 1, the input/output ends are all 30-150V/0-30A), and the output voltage monitoring unit is connected in parallel with the output end of the power supply circuit; the current monitoring unit and the output switch unit are sequentially connected in series in the power supply circuit; the first LDO module and the second LDO module are sequentially connected with the DC/DC module; the second AD isolation module is connected between the first LDO module and the input voltage monitoring unit; the first AD isolation module is connected between the first LDO module and the output voltage monitoring unit; the current monitoring unit is connected with the first LDO module; the buzzer, the LCD display unit, the key unit, the USB interface and the MCU processor are respectively connected with the second LDO module; the first AD isolation module, the second AD isolation module, the buzzer, the LCD display unit, the key unit, the USB interface and the output switch unit are respectively connected with the MCU processor, and the output switch unit is an MOS switch; and the current monitoring unit is connected with the first AD isolation module.
The MCU processor is provided with an AD1_1 end, an AD2_2 end, an AD3_3 end, a PWM end, an I2C end, an I/O end, a USB end and a G end; the AD1_1 end and the AD2_2 end are correspondingly connected with the first AD isolation module; the AD 3-3 end is connected with the second AD isolation module; the PWM end is connected with the buzzer; the I2C end is connected with the LCD display unit; the I/O end is connected with the key unit; the USB end is connected with the USB interface; and the G end is connected with the output switch unit.
In addition, the device also comprises a storage module (TF card or SD card, not shown) for storing the monitored or monitored data information and a wireless connection module (WIFI or Bluetooth, not shown) which can be in wireless interconnection with the APP; the storage module and the wireless connection module are respectively connected with the MCU processor, all data information can be sent to the APP through the wireless connection module, and all information of charging of the single-wheel or double-wheel electric scooter can be checked through the APP.
The device also comprises a body 10 and a circuit board, wherein the circuit board is positioned in the body 10, and the LCD display unit 11 and the key unit 12 are arranged on the body and are connected with the circuit board; the input voltage monitoring unit, the output voltage monitoring unit, the current monitoring unit, the output switch unit, the DC/DC module, the first LDO module, the second LDO module, the MCU processor, the LCD display unit, the USB interface, the buzzer (the buzzer can also be arranged on the body 10), the first AD isolation module and the second AD isolation module are all arranged on the circuit board. One end of the circuit board is connected with a power supply contact point of a charger of the single-wheel or double-wheel electric scooter through an electric wire, and the other end of the circuit board is connected with a power supply contact point of a battery of the single-wheel or double-wheel electric scooter through an electric wire. The method comprises the steps that cutoff voltage and protection current parameters are input through a key unit and are sent to an MCU (micro control unit) processor, the output current monitoring unit and the output voltage monitoring unit send the monitored current voltage and current to the MCU processor, and the MCU processor is used for controlling an output switch unit to disconnect a charging circuit when the current voltage reaches the cutoff voltage, the current reaches the protection current or the current reaches a full cutoff current value; i.e. any one of the three conditions is met, the circuit is opened.
According to the scheme, an intelligent cut-off device is added on the basis of charging of the original single-wheel and double-wheel scooter, and an input/output voltage monitoring unit and a current monitoring unit automatically monitor whether the current voltage and current reach the set parameters or not through a key unit (a user sets cut-off voltage, protection current, full cut-off current and charging time according to requirements); the output switch unit is used for intelligently cutting off according to the monitoring information if one parameter is achieved, so that the vehicle and the charger are electrically separated, the safety protection effect is achieved, and the charging safety is improved.
The intelligent cutting device does not need to be refitted with the existing charger and the vehicle, and a new safety guarantee is added by connecting the intelligent cutting device with the original charger. In addition, the user can set parameters according to the actual vehicle as required, and only needs to set different plug connectors at the output end of the power supply circuit to match different vehicle types, so that the application range is wide.
In this embodiment, specific setting parameters are as follows:
1. Cut-off voltage: setting a voltage range: 30-140V, if the target voltage is 48V, the cut-off voltage is set to be greater than 48V, if the setting is invalid, if the setting is 47V, the charging circuit is cut off when the battery voltage reaches 47V.
2. Protection current: setting a current range: 1-30A, e.g., the target current is 5A, when a charging current greater than 5A is monitored during charging, i.e., the charging circuit is turned off.
3. Full off current: the current is less than 300ma, and when the battery is full, the current drops to 300ma, and when the current is monitored to reach this parameter, the charging circuit is cut off.
The intelligent control device for on-off of the charging circuit of the single-wheel or two-wheel electric scooter is formed by connecting an input voltage monitoring unit, an output voltage monitoring unit, a current monitoring unit, an output switch unit, a DC/DC module, a first LDO module, a second LDO module, an MCU processor, a buzzer, an LCD display unit, a key unit, a USB interface, a first AD isolation module and a second AD isolation module, and can monitor whether the voltage and the current value in the charging circuit reach the set upper limit in real time, if so, the intelligent control device is intelligently cut off, so that the electric isolation between the vehicle and a charger is realized, and the charging safety of the single-wheel or two-wheel electric scooter is improved.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.
Claims (9)
1. An intelligent control device for on-off of a charging circuit is characterized in that: the power supply circuit comprises an input voltage monitoring unit, an output voltage monitoring unit, a current monitoring unit, an output switch unit, a DC/DC module, a first LDO module, a second LDO module, an MCU processor, a buzzer, an LCD display unit, a key unit for inputting cut-off voltage and protection current parameters and sending the cut-off voltage and protection current parameters to the MCU processor, a USB interface, a first AD isolation module and a second AD isolation module, wherein the input voltage monitoring unit and the DC/DC module are respectively connected in parallel with the input end of a power supply circuit, and the output voltage monitoring unit is connected in parallel with the output end of the power supply circuit; the current monitoring unit and the output switch unit are sequentially connected in series in the power supply circuit; the first LDO module and the second LDO module are sequentially connected with the DC/DC module; the second AD isolation module is connected between the first LDO module and the input voltage monitoring unit; the first AD isolation module is connected between the first LDO module and the output voltage monitoring unit; the current monitoring unit is connected with the first LDO module; the buzzer, the LCD display unit, the key unit, the USB interface and the MCU processor are respectively connected with the second LDO module; the first AD isolation module, the second AD isolation module, the buzzer, the LCD display unit, the key unit, the USB interface and the output switch unit are respectively connected with the MCU processor, and the current monitoring unit is connected with the first AD isolation module; and the MCU processor is provided with a full cut-off current value, and when the current voltage reaches the cut-off voltage, the current reaches the protection current or the current reaches the full cut-off current value, the MCU processor controls the output switch unit to disconnect the charging circuit.
2. The intelligent control device for on-off of a charging circuit according to claim 1, wherein: the MCU processor is provided with an AD1_1 end, an AD2_2 end, an AD3_3 end, a PWM end, an I2C end, an I/O end, a USB end and a G end; the AD1_1 end and the AD2_2 end are correspondingly connected with the first AD isolation module; the AD 3-3 end is connected with the second AD isolation module; the PWM end is connected with the buzzer; the I2C end is connected with the LCD display unit; the I/O end is connected with the key unit; the USB end is connected with the USB interface; and the G end is connected with the output switch unit.
3. The intelligent control device for on-off of a charging circuit according to claim 1, wherein: the output voltage of the first LDO module is 5V; the output voltage of the second LDO module is 3.3V.
4. The intelligent control device for on-off of a charging circuit according to claim 1, wherein: the output switch unit is a MOS switch.
5. The intelligent control device for on-off of a charging circuit according to claim 1, wherein: the system also comprises a storage module for storing the monitored data information, and the storage module is connected with the MCU processor.
6. The intelligent control device for on-off of a charging circuit according to claim 1, wherein: the wireless connection module can be in wireless interconnection with the APP, and the wireless connection module is connected with the MCU processor.
7. The intelligent control device for on-off of a charging circuit according to claim 1, wherein: the charge cut-off voltage range is 30-140V.
8. The intelligent control device for on-off of a charging circuit according to claim 1, wherein: the charging protection current ranges from 1 to 30A.
9. The intelligent control device for on-off of a charging circuit according to claim 1, wherein: the full off current is less than 300ma.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322986432.1U CN221366671U (en) | 2023-11-06 | 2023-11-06 | Intelligent control device for on-off of charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322986432.1U CN221366671U (en) | 2023-11-06 | 2023-11-06 | Intelligent control device for on-off of charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221366671U true CN221366671U (en) | 2024-07-19 |
Family
ID=91857483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322986432.1U Active CN221366671U (en) | 2023-11-06 | 2023-11-06 | Intelligent control device for on-off of charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221366671U (en) |
-
2023
- 2023-11-06 CN CN202322986432.1U patent/CN221366671U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205846826U (en) | A kind of portable startup power supply | |
| CN107336632B (en) | Control method of electric vehicle combined charging system | |
| CN202330665U (en) | Monitoring device for state of storage battery for urban rail vehicle | |
| CN202944215U (en) | Charging-driving interlock device of electric car | |
| CN208623377U (en) | Emergency vehicle startup power supply | |
| CN101888114A (en) | Multifunctional power supply of vehicular automotive electronic device | |
| CN211000963U (en) | Multi-functional charging control box with fault detection effect | |
| CN205311820U (en) | A hybrid power system for electric bicycle | |
| CN204794272U (en) | Prevent that electric motor car storage battery from crossing auto -power -off device that fills | |
| CN221366671U (en) | Intelligent control device for on-off of charging circuit | |
| CN202333918U (en) | Portable standby power source | |
| CN104760511B (en) | Lithium battery residual capacity and fault display system and electric bicycle | |
| CN206461392U (en) | DC charging control device based on 24V system charging electric vehicles | |
| CN210554623U (en) | Emergency starting power supply of automobile | |
| CN216903089U (en) | Zero-power-consumption control module of explosion-proof lithium battery system | |
| CN206250797U (en) | Intelligent charging protector | |
| CN115923566A (en) | New energy automobile charging system with self-checking function | |
| CN203387230U (en) | Multifunctional portable vehicle power supply | |
| CN206481073U (en) | A kind of intelligent vehicle-carried USB charger | |
| CN201928077U (en) | Multifunctional power supply for vehicle-mounted automotive electronic device | |
| CN204323540U (en) | A kind of battery-driven car charging anti-joyride device | |
| CN221428634U (en) | Sodium ion battery starting power supply system | |
| CN216610921U (en) | A insert rifle heat preservation system for new energy automobile | |
| CN221900578U (en) | Portable starting power supply device | |
| CN216751185U (en) | Electric vehicle safety protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |