TWI827451B - Intelligent charging system - Google Patents

Abstract

An intelligent charging system, including: at least one charging module, each charging module providing a power source; at least one charging unit, the at least one charging unit electrically connected with the at least one charging module, the at least one charging unit receiving the power source and supplying the power source to a battery unit of an external vehicle to charge the battery unit; a control module, electrically connected with each charging module; wherein when the control module detects that an output electric current of the at least one charging module drops from a current limit value to a target value during the charging of the battery unit of the external vehicle by the at least one charging unit, the control module control the charging unit to stop charging.

Description

Smart charging system

The present invention relates to an intelligent charging system, and in particular to a technical improvement of an intelligent charging system for external vehicles.

The batteries of external vehicles usually need to be charged for a long time. When the general charging system cannot determine whether the battery is fully charged, it is easy for the battery to be fully charged and continue to be charged for a long time, resulting in dangers such as battery damage or overheating.

Currently, the battery management system (BMS) installed on the external vehicle can only determine whether the battery is fully charged and automatically shut down the power. However, there are many types of external vehicles nowadays, such as electric vehicles, electric motorcycles, electric bicycles, electric scooters, etc. Not all external vehicles have battery management systems (BMS) and have different charging methods. In addition, the battery specifications are also used to determine the time to stop charging. However, electric vehicles, electric motorcycles, electric bicycles, electric auxiliary vehicles, etc. all have different charging needs, and their battery specifications are also different, and the battery capacity is also different, and Not all batteries can have their specifications detected, so this method cannot be applied to all external vehicle batteries.

Therefore, it is necessary to provide a novel and progressive intelligent charging system to solve the above problems.

The main purpose of the present invention is to provide an intelligent charging system that can automatically stop charging a battery unit of an external vehicle to avoid overcharging.

To achieve the above objectives, the present invention provides an intelligent charging system, which includes: at least one charging module, each charging module provides a charging power source; at least one charging unit, the at least one charging unit is electrically connected to the at least one charging module. Set, the at least one charging unit receives the charging power and outputs the charging power to a battery unit of an external vehicle for charging; a control module is electrically connected to each charging module; wherein, the smart charging The system includes: a plurality of charging circuits, a plurality of charging modules and a plurality of charging units. The plurality of charging units include a charging gun and a charging base. The plurality of charging modules include a first charging module and a second charging module. , the plurality of charging circuits includes a first charging circuit and a second charging circuit. The first charging circuit and the second charging circuit are connected in parallel and electrically connected to the control module. The first charging circuit includes the first charging circuit. module and the charging gun, the second charging circuit includes the second charging module and the charging stand, the charging stand is for plugging in a plug; wherein, a maximum output power of the first charging module is greater than that of the second charging module. One of the maximum output powers of the charging module; wherein, during the process of charging the battery unit of the external vehicle by the at least one charging unit, when the control module detects an output current of the at least one charging module When the current starts to drop from an upper limit value to a target value, the control module controls the at least one charging unit to stop charging; wherein the intelligent charging system is a charging system of a charging pile; wherein the intelligent charging system also includes A plurality of backflow prevention units is provided, one of the backflow prevention units is provided between a discharge end of each charging module and each charging unit, and each backflow prevention unit is provided adjacent to the discharge end.

1:Smart charging system

2:External vehicle

3:Battery unit

4: Target location

10:Charging module

11: The first charging module

12:Second charging module

13: Discharge terminal

20:Charging unit

21:Charging gun

22a,22b: Charging stand

30:Control module

40:Voltage detection module

70:Charging circuit

71: First charging circuit

72: Second charging circuit

80: Charging charging module

90:Detection unit

100: Backflow prevention unit

200:Relay module

300: Payment module

Figure 1 is a schematic diagram of a preferred embodiment of the present invention.

Figure 2 is a block diagram of a preferred embodiment of the present invention.

Figure 3 is a schematic diagram of a preferred embodiment of the present invention in use.

The following examples are only used to illustrate possible implementations of the present invention, but they are not intended to limit the scope of protection of the present invention. The "one" or "at least one" before the nouns mentioned in the article do not limit the quantity. It can also be "plural" according to the requirements. This change in quantity is also the scope of the desired protection, which will be explained first.

Please refer to FIGS. 1 to 3 , which show a preferred embodiment of the present invention. The smart charging system 1 of the present invention includes at least one charging module 10 , at least one charging unit 20 and a control module 30 .

Each charging module 10 provides a charging power; the at least one charging unit 20 is electrically connected to the at least one charging module 10, and the at least one charging unit 20 receives the charging power and outputs the charging power to an external vehicle 2 A battery unit 3 is used for charging; the control module 30 is electrically connected to each charging module 10; wherein, during the process of the at least one charging unit 20 charging the battery unit 3 of the external carrier 2, When the control module 30 detects that an output current of the at least one charging module 10 drops from an upper current value to a target value, the control module 30 controls the at least one charging unit 20 to stop charging.

Specifically, the external vehicle 2 may be an electric bicycle, an electric auxiliary vehicle, an electric vehicle or an electric motorcycle.

In this embodiment, the intelligent charging system 1 is a charging system of a charging pile.

Preferably, the battery unit 3 is a lead-acid battery.

Specifically, during the process of charging the battery unit 3 of the external vehicle 2 by the at least one charging unit 20, the at least one charging unit 20 outputs a certain value of current to the battery unit of the external vehicle 2. 3. Increase the service life of the battery unit 3.

The target value is that the current upper limit value decreases by at least (greater than or equal to) 5%. Preferably, the target value is at least (greater than or equal to) 10% lower than the current upper limit value.

Therefore, after the battery unit 3 provided in the external vehicle 2 is fully charged, charging is automatically stopped to prevent the battery unit 3 of the external vehicle 2 from being overcharged and damaged and unable to be fully charged. Specifically, after the battery unit 3 is fully charged, the current begins to decrease from the current upper limit value, and the time to stop charging is determined based on this state, which is widely applicable to different battery types and charging methods.

It is worth mentioning that the battery unit 3 of the external vehicle 2 can be judged without knowing the battery capacity, battery voltage, battery type, battery specification, and voltage threshold of the battery unit 3 alone. 3 has been fully charged and stops charging.

The control module 30 further includes at least one voltage detection module 40, which is electrically connected to the control module 30; wherein, when the at least one charging unit 20 is electrically connected to the external vehicle 2 of the battery unit 3, the at least one voltage detection module 40 is used to detect and obtain a voltage value of the battery unit 3, and the control module 30 controls at least one of the charging units 20 to output an initial value based on the voltage value. The voltage is supplied to the battery unit 3 of the external vehicle; preferably, the initial voltage is higher than the voltage value so as to charge stably to avoid the initial voltage being too high or too low, causing damage to the battery unit 3 or Unable to charge. Specifically, the at least one voltage detection module 40 can be a plurality, and the plurality of voltage detection modules 40 can detect different voltages of the battery units 3 electrically connected to the plurality of charging units 20 .

The smart charging system 1 includes a plurality of charging circuits 70, a plurality of charging modules 10 and a plurality of charging units 20. The plurality of charging units 20 include a charging gun 21 and a charging base 22a, 22b. The charging module 10 includes a first charging module 11 and a second charging module 12. The plurality of charging circuits 70 includes a first charging circuit 71 and a second charging circuit 72. The first charging circuit 71 and the Two charging circuits 72 are connected in parallel and are electrically connected to the control module 30 . The first charging circuit 71 includes the first charging module 11 and the charging gun 21 . The second charging circuit 72 includes the second charging module 12 and the charging bases 22a, 22b; thereby, multiple ways of charging can be provided; for example, the charging gun 21 can be plugged into an electric vehicle with charging bases 22a, 22b for charging; the charging bases 22a, 22b can For example, an electric vehicle or battery unit 3 that does not have a plug for the charging gun 21 can be plugged into it for charging. The charging gun 21 and the charging bases 22a and 22b can charge different battery units 3 at the same time. Moreover, it provides a variety of charging types and a variety of different types of battery charging.

The first charging circuit 71 includes a plurality of charging modules 10. The plurality of charging modules 10 are connected in parallel. The charging gun 21 is electrically connected to the plurality of charging modules 10, which can increase the power range that the charging gun 21 can output. For example, the maximum power of each charging module 10 of the first charging circuit 71 is 3.2Kw, which means that the charging gun 21 can output the total power of the sum of the maximum powers of the plurality of charging modules 10 .

The maximum output power of the first charging module 11 is different from the maximum output power of the second charging module 12; the maximum output power of the first charging module 11 is greater than that of the second charging module 12 Maximum output power. In this embodiment, the maximum output power of the second charging module 12 is 1Kw, and the maximum output power of the first charging module 11 is 3.2Kw; but it is not limited thereto, so as to provide different charging needs at the same time.

To further explain, the number of the plurality of charging circuits 70, the charging guns 21 and the charging bases 22a and 22b can be determined and increased according to needs to meet different types of charging needs. The charging base 22a has three flat holes, and the charging base 22b has three circular holes.

The smart charging system 1 includes a plurality of charging modules 10 and a plurality of charging units 20. The plurality of charging modules 10 are connected in parallel. The charging gun 21 is electrically connected to one of the charging modules 10. The charging base 22a is electrically connected. The charging module 10. Thereby, the charging gun 21 and the charging base 22a can share the total power of the plurality of charging modules 10, and the charging gun 21 and the charging base 22a cannot be used at the same time.

The smart charging system 1 further includes a plurality of backflow prevention units 100. One of the backflow prevention units 100 is disposed between a discharge end 13 of each charging module 10 and each charging unit 20. Each backflow prevention unit 100 is adjacent to the discharge end. 13 is configured to prevent current from flowing out of each charging module 10 and then flowing back. Each backflow prevention unit 100 is a Zener diode.

The smart charging system 1 further includes a relay module 200. The relay module 200 is electrically connected between at least one charging module 10 and the charging gun 21. The control module 30 can selectively turn on the relay module. The group 200 enables the charging gun 21 to receive the charging power of at least one charging module 10 , or closes the relay module 200 to block the charging gun 21 from receiving the charging power of at least one charging module 10 . Specifically, the relay module 200 includes a first relay unit and a second relay unit. The first relay unit, the second relay unit, and the at least one (each) charging module 10 The charging gun 21 and the charging gun 21 are connected in series with each other, and the charging module 10 is electrically connected to the first relay unit and the second relay unit. To further explain, the first relay unit is a positive relay, the second relay unit is a negative relay, the positive relay is electrically connected to a positive pole of each charging module 10, and the negative relay is electrically connected to each of the charging modules 10. The charging module 10 has a negative electrode. Thereby, the charging gun 21 can be switched to start charging and stop charging, and can also be switched when performing insulation detection of the charging circuit 70, and can prevent power backflow to protect the charging gun 21.

The smart charging system 1 further includes a charging charging module 80. The charging charging module 80 is electrically connected to the charging module 10. The charging charging module 80 generates a charging fee. The charging charging module 80 is electrically connected to the charging charging module 80. Control module 30, the control module 30 controls the at least one charging module 10 to provide the at least one The charging unit 20 outputs a charging amount; wherein the charging amount or charging time corresponds to the charging fee. The smart charging system 1 further includes at least one detection unit 90. Each detection unit 90 is electrically connected to the control module 30. Each detection unit 90 detects whether the external vehicle 2 is present at a target location 4. Each detection unit 90 is electrically connected to the control module 30. The detection unit 90 can detect whether the external vehicle 2 is present at a plurality of target locations 4; wherein, the control module 30 starts accumulating parking according to when each detection unit 90 detects that the external vehicle 2 is present at the target location 4. time, and generate a parking fee based on the accumulated parking time; wherein, the control module 30 integrates the parking fee and the charging fee into a payment information. The at least one detection unit 90 can be a camera, a sensing unit (such as a geomagnetic induction unit, an ultrasonic detector, etc.) or an electronic lock. Preferably, the camera is used to detect the plurality of target locations 4 at the same time. In another implementation form, the at least one detection unit is the electronic lock, and the control module can start accumulating parking time when the electronic lock detects the external vehicle and automatically locks it.

The smart charging system 1 further includes a payment module 300. The payment module 300 is electrically connected to the control module 30. The payment module 300 can be used for coin operation, electronic payment, mobile payment, financial card, monthly card ( Pay the fee corresponding to the payment information through monthly balance card), an application (APP) payment (installed in the electronic device), etc.; therefore, the parking fee and the charging fee can be integrated to improve the convenience of user payment , instead of having to pay once at the charging pile after charging, and pay the parking fee again at the parking payment machine. The smart charging system 1 may further include a transmission unit that can receive the payment information and transmit it to a device for display, such as a smartphone, a smart watch or other electronic devices, so that payment can be made online.

1:Smart charging system

10:Charging module

11: The first charging module

12:Second charging module

13: Discharge terminal

20:Charging unit

21:Charging gun

22a,22b: Charging stand

30:Control module

70:Charging circuit

71: First charging circuit

72: Second charging circuit

100: Backflow prevention unit

200:Relay module

Claims (7)

An intelligent charging system includes: at least one charging module, each charging module provides a charging power supply; at least one charging unit, the at least one charging unit is electrically connected to the at least one charging module, and the at least one charging unit receives the A charging power supply is provided to output the charging power to a battery unit of an external vehicle for charging; a control module is electrically connected to each charging module; wherein, the intelligent charging system includes: a plurality of charging circuits, a plurality of charging module and a plurality of charging units, the plurality of charging units including a charging gun and a charging base, the plurality of charging modules including a first charging module and a second charging module, the plurality of charging circuits including a first charging circuit and a second charging circuit, the first charging circuit and the second charging circuit are connected in parallel and electrically connected to the control module, the first charging circuit includes the first charging module and the charging gun, the second The charging circuit includes the second charging module and the charging stand, and the charging stand is for plugging in a plug; wherein a maximum output power of the first charging module is greater than a maximum output power of the second charging module; wherein , during the process of the at least one charging unit charging the battery unit of the external vehicle, when the control module detects that the output current of the at least one charging module drops from a current upper limit value to a When the target value is reached, the control module controls the at least one charging unit to stop charging; wherein, the intelligent charging system is a charging system of a charging pile; wherein, the intelligent charging system also includes a plurality of backflow prevention units, each charging module A backflow prevention unit is disposed between one of the discharge ends and each charging unit, and each backflow prevention unit is disposed adjacent to the discharge end. The intelligent charging system as described in claim 1, wherein the target value is a decrease of at least 5% from the current upper limit value. The smart charging system of claim 1, wherein the control module further includes at least one voltage detection module; wherein, when the at least one charging unit is electrically connected to the battery unit of the external vehicle, the at least one The voltage detection module is used to detect and obtain a voltage value of the battery unit, and the control module controls at least one of the charging units to output an initial voltage to the battery unit of the external vehicle according to the voltage value; wherein the initial voltage is higher than this voltage value. The intelligent charging system as claimed in claim 1, which includes a plurality of charging modules connected in parallel, the charging gun being electrically connected to one of the charging modules, and the charging stand being electrically connected to another charging module. The smart charging system as described in any one of claims 1 to 4, further includes a charging charging module, the charging charging module is electrically connected to the charging module, the charging charging module generates a charging fee, and the charging charging module generates a charging fee. The charging module is electrically connected to the control module, and the control module controls the at least one charging module to provide a charging amount to the at least one charging unit; wherein the charging amount or charging time corresponds to the charging fee. The smart charging system as described in claim 5 further includes at least one detection unit, each detection unit is electrically connected to the control module, and each detection unit detects whether the external vehicle is present at a target location; wherein, The control module starts to accumulate parking time when each detection unit detects the external vehicle at the target location, and generates a parking fee based on the accumulated parking time; wherein, the control module combines the parking fee and The charging fee is integrated into one payment information. The smart charging system as claimed in claim 1, wherein the target value decreases by at least 10% of the current upper limit value; the control module further includes at least one voltage detection module; wherein, when the power supply of the at least one charging unit When the battery unit of the external vehicle is connected, the at least one voltage detection module is used to detect and Obtain a voltage value of the battery unit, and the control module controls at least one charging unit to output an initial voltage to the battery unit of the external vehicle according to the voltage value; the initial voltage is higher than the voltage value; the smart charging The system also includes a relay module. The relay module is electrically connected between at least one charging module and the charging gun. The control module can selectively turn on the relay module so that the charging gun receives at least one of the charging guns. The charging power of the charging module, or turning off the relay module to block the charging gun from receiving the power charging power of at least one charging module; the first charging circuit includes a plurality of charging modules, and the plurality of charging modules interact with each other. In parallel connection, the charging gun is electrically connected to the plurality of charging modules.

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