TWI732653B - Intelligent rescue battery and detection and control method of the intelligent rescue battery - Google Patents

Abstract

A smart rescue battery and a detection control method for the smart rescue battery. The smart rescue battery includes a power storage unit, a relay group, a control unit, an output line group, and a charging circuit. The power storage unit, The control unit, the output line group, and the charging circuit are respectively coupled to the relay group. The power storage unit is discharged or charged by turning on and off the relay group. The power storage unit includes a first battery and a second battery. The control The unit controls the on-off state of the circuit of the relay group, according to which the first battery and the second battery are discharged in parallel or in series.

The smart rescue battery can automatically choose to output power of a corresponding voltage to the outside according to the needs of the rescued vehicle, thereby improving the convenience and safety of use.

Description

Intelligent rescue battery and detection and control method of the intelligent rescue battery

The present invention relates to a rescue battery used for vehicle road rescue, and more particularly, to a smart rescue battery and a detection and control method for the smart rescue battery.

The rescue batteries used in vehicle road rescue are mostly in the form of a single voltage output, which can only be applied to specific types of vehicles. It is common practice to have two types of rescue batteries with different voltage outputs to provide different types of vehicle rescue use. This type of rescue The battery has two sets of jacks, which can respectively output currents of different voltage values. However, when the user uses the power transmission line to electrically connect the starting battery of the rescued vehicle and the jack, if the power transmission line is negligent for a while, the power transmission line and Incorrect connection of the rescue battery may cause damage to the vehicle’s electrical equipment; for example, suppose that the output voltage of the starting battery is 12V, and the power transmission line is mistakenly inserted into the jack that outputs 24V, so that the rescue battery transmits to the vehicle. The 24V current will cause damage to the electrical equipment, and the ease of use and safety need to be improved.

The main purpose of the present invention is to provide a smart rescue battery and a detection and control method of the smart rescue battery, which can detect the voltage of the starting battery of the rescued vehicle, automatically select and output the current of the corresponding voltage, and improve the convenience and safety of use .

To meet the foregoing objectives, the present invention is a smart rescue battery and a detection and control method for the smart rescue battery; the smart rescue battery includes a power storage unit, a relay The electrical equipment group, a control unit, an output line group and a charging circuit, wherein the power storage unit, the control unit, the output line group and the charging circuit are respectively coupled to the relay group, and the power storage unit is connected to the relay group. The power storage unit includes a first battery and a second battery. The first battery and the second battery are respectively secondary batteries. The control unit controls the on-off state of the relay set according to the The first battery and the second battery are discharged in parallel or in series;

The output line set and the charging circuit are respectively coupled to the control unit, the control unit includes a detection module and a microprocessor, the output line set includes a positive line and a negative line, the positive line and the negative line It is used to electrically connect the starting battery of the rescued vehicle to detect the operating voltage of the starting battery and transmit power to the vehicle. The charging circuit is used to couple to an external power source and rectify and transform the external power source. The input power is charging power, based on which the charging voltage of the charging power is detected, and the power storage unit is charged;

The detection module is used for detecting the working voltage, the discharging voltage of the storage unit and the charging voltage, and the microprocessor controls the action of the relay group based on the working voltage, the discharging voltage and the charging voltage.

10: Power storage unit

12: The first battery

14: second battery

20: Relay group

22: The first relay

24: second relay

26: third relay

28: Fourth Relay

30: control unit

32: Detection module

34: Microprocessor

40: output line group

42: positive wire

44: negative wire

50: Charging circuit

60: indicating device

[Figure 1] is a circuit block diagram of the smart rescue battery of the present invention.

[Figure 2] is a schematic circuit diagram of the smart rescue battery of the present invention, showing the circuit connection state of the relay group and the storage unit.

[Figure 3] is a schematic circuit diagram of the current output state (1) of the smart rescue battery of the present invention.

[Figure 4] is a circuit diagram of the current output state (2) of the smart rescue battery of the present invention intention.

[Figure 5] is a schematic circuit diagram of the charging state of the storage unit of the smart rescue battery of the present invention.

[Figure 6] is a flowchart of the detection and control method of the smart rescue battery of the present invention.

As shown in Figures 1 and 2, the smart rescue battery of the present invention includes a power storage unit (10), a relay group (20), a control unit (30), an output line group (40) and a charging circuit (50), wherein the power storage unit (10), the control unit (30), the output line group (40) and the charging circuit (50) are respectively coupled to the relay group (20), and the power storage unit (10) Discharge or charge by the on-off of the relay group (20), the power storage unit (10) includes a first battery (12) and a second battery (14), the first battery (12) and the second battery (14) It is a secondary battery composed of several battery cells connected in series. The voltage of the first battery (12) and the second battery (14) is the first voltage. The first voltage of 12V is an implementation option The control unit (30) controls the on-off state of the circuit of the relay group (20), according to which the first battery (12) and the second battery (14) are discharged in parallel or in series.

The output line set (40) and the charging circuit (50) are respectively coupled to the control unit (30). The control unit (30) includes a detection module (32) and a microprocessor (34). The output The wire set (40) includes a positive wire (42) and a negative wire (44). The positive wire (42) and the negative wire (44) are used to electrically connect the starting battery of the rescued vehicle (not shown) (Not shown in the figure), according to which the operating voltage of the starting battery is detected and power is transmitted to the vehicle, the charging circuit (50) is used to couple to an external power source (not shown in the figure), and rectify and transform The power input from the external power source becomes the charging power that can charge the power storage unit (10), the voltage of the charging power is the charging voltage, and the charging voltage is detected accordingly, and the power storage unit (10) is charged.

The detection module (32) is used to detect the working voltage, the discharge voltage of the storage unit (10) and the charging voltage of the charging circuit (50), and the microprocessor (34) is based on the working voltage, the The discharge voltage and the charging voltage control the action of the relay group (20).

According to the aforementioned configuration, when the first battery (12) and the second battery (14) are connected in parallel (as shown in Figure 3), the discharge voltage of the power storage unit (10) is the first voltage, and the first When the battery (12) and the second battery (14) are connected in series (as shown in Figure 4), the discharge voltage of the power storage unit (10) is the second voltage, and the second voltage is the first battery (12) And the voltage of the second battery (14); the output line group (40) is electrically connected to the starting battery, the detection module (32) can detect the working voltage of the starting battery, and the working voltage is At the first voltage, the first battery (12) and the second battery (14) are connected in parallel to transmit the first electric power to the vehicle. The voltage of the first electric power is the first voltage; when the working voltage is the second voltage, The first battery (12) and the second battery (14) are connected in series to transmit a second electric power to the vehicle, and the voltage of the second electric power is the second voltage.

The smart rescue battery can output two different voltages of power to the outside, and can respond to the rescue needs of different types of vehicles. The detection module (32) detects the voltage of the starting battery, and the microprocessor ( 34) Control the action of the relay group (20) according to the detection result, so that the power storage unit (10) can accurately and automatically output the current of the corresponding voltage for rescue, and the electrical equipment of the vehicle will not be damaged due to excessive voltage. , Thereby improving the convenience and safety of use.

The aforementioned first voltage is 12V, and the second voltage is 24V, which is a feasible implementation option and should not be regarded as a limitation of the present invention.

The relay group (20) includes a first relay (22), a second relay (24), a third relay (26) and a fourth relay (28), the first relay (22), the second relay (28), The relay (24), the third relay (26) and the fourth relay (28) are respectively normally open relays, and the first relay The two contacts of the device (22) are respectively electrically connected to the positive electrode of the first battery (12) and the negative electrode of the second battery (14), and the two contacts of the second relay (24) are respectively connected to the first battery The positive pole of (12) and the positive pole of the second battery (14) are electrically connected, and the two contacts of the third relay (26) are respectively connected to the negative pole of the first battery (12) and the second battery (14). The negative electrode is electrically connected, the two contacts of the fourth relay (28) are respectively electrically connected to the positive electrode of the second battery (14) and the positive wire (42), and the negative wire (44) is electrically connected to the first battery ( The negative electrical connection of 12), according to which the microprocessor (34) controls the first relay (22), the second relay (24), the third relay (26) and the fourth relay (28) Actuate separately, for the first battery (12) and the second battery (14) to be discharged in parallel or in series; the fourth relay (28) is electrically connected to the contact of the positive line (42) and the control unit (30) ) Is coupled, the negative electrode of the first battery (12) is coupled to the control unit (30), according to which the detection module (32) detects the discharge voltage.

When the operating voltage of the starting battery is 12V, as shown in Figure 3, the first relay (22) remains open, the second relay (24) and the third relay (26) are closed, and the first battery (12) ) And the second battery (14) are connected in parallel. When the detection module (32) detects that the discharge voltage of the power storage unit (10) is 12V, the fourth relay (28) is closed, and the power storage unit (10) The first electric power with a voltage of 12V is transmitted to the vehicle through the output line group (40).

When the operating voltage of the starting battery is 24V, as shown in Figure 4, the first relay (22) is closed, the second relay (24) and the third relay (26) are disconnected, and the first battery (12) And the second battery (14) are connected in series. When the detection module (32) detects that the discharge voltage of the power storage unit (10) is 24V, the fourth relay (28) is closed and the power storage unit (10) passes The output line group (40) transmits the second electric power with a voltage of 24V to the vehicle.

The second relay (24) is electrically connected to the contact point of the positive electrode of the second battery (14) and the positive electrode of the charging circuit (50) is coupled, so that the positive electrode of the charging circuit (50) and the second battery ( 14) The positive pole of the third relay (26) is electrically connected to the negative pole of the second battery (14) and the negative pole of the charging circuit (50) is coupled so that the negative pole of the charging circuit (50) is connected to the The negative electrode of the second battery (14) is coupled for the charging circuit (50) to charge the power storage unit (10).

As shown in Figure 5, the charging circuit (50) is coupled to the external power source, and the detection module (32) detects the charging voltage of the charging circuit (50). When the charging voltage is equal to 12V, it is disconnected first The fourth relay (28) prevents the electric storage unit (10) from discharging through the output line group (40) at the same time during the subsequent charging process, and then disconnects the first relay (22), and then the The second relay (24) and the third relay (26) are closed, the first battery (12) and the second battery (14) are connected in parallel, and the charging circuit (50) connects the first battery (12) and the The second battery (14) is discharged separately, and the first battery (12) and the second battery (14) are charged accordingly.

The charging circuit (50) may optionally have a fifth relay (not shown in the figure) to constitute another implementation option. The fifth relay is a normally open relay. When the discharge voltage condition of the charging circuit (50) is satisfied, The microprocessor (34) controls the fifth relay to close, thereby charging the power storage unit (10); the discharge voltage condition of the charging circuit (50) means that the discharge voltage of the charging circuit (50) is the first By controlling the on-off of the fifth relay, the charging safety of the power storage unit (10) can be improved.

As shown in Figure 1, the smart rescue battery further includes an indicating device (60), the indicating device (60) is coupled to the microprocessor (34), and the indicating device (60) is a light indicator , Sound indicator or LED indicator, based on which a warning signal is issued; when the working voltage detection result of the starting battery is 0, it can be judged that the output line group (40) and the starting battery are connected abnormally. Abnormal connection, including misconnection of positive and negative poles, failure to form a valid electrical connection and other abnormal states. At this time, the fourth relay (28) remains open to prevent the power storage unit (10) from discharging through the output line group (40), When a safety hazard or equipment damage event is caused, the microprocessor (34) sends a signal to the indicating device (60), and the indicating device (60) sends out a warning message.

As shown in Figure 6, the detection and control method of the smart rescue battery includes the following steps:

Detecting the battery voltage of the rescued vehicle: the output line set (40) is electrically connected to the starting battery of the rescued vehicle, and the detection module (32) detects the working voltage of the starting battery.

Judgment: when the operating voltage is the first voltage, perform a parallel output step; when the operating voltage is the second voltage, perform a series output step; when the operating voltage is 0, perform an abnormal protection and warning step.

Parallel output: the microprocessor (34) controls the action of the relay group (20), the first battery (12) and the second battery (14) are connected in parallel, and the output line group (40) is used to transmit to the vehicle accordingly The first power and the voltage of the first power is the first voltage; at this time, the first relay (22) remains open, the second relay (24) and the third relay (26) are closed, and the The first battery (12) and the second battery (14) are connected in parallel, and when the detection module (32) detects that the discharge voltage of the power storage unit (10) is the first voltage, the fourth relay (28) Closed, according to which the first power is transmitted to the vehicle.

Series output: The microprocessor (34) controls the relay group (20) to act, the first battery (12) and the second battery (14) are connected in series, and the output line group (40) is used to transmit to the vehicle accordingly. The second power, and the voltage of the second power is the second voltage; at this time, the first relay (22) is closed, the second relay (24) and the third relay (26) are disconnected, and the A battery (12) and the second battery (14) are connected in series. When the detection module (32) detects that the discharge voltage of the storage unit (10) is the second voltage, the fourth relay (28) is closed According to this, the second power is transmitted to the vehicle.

Abnormal protection and warning: the fourth relay (28) remains open, the microprocessor (34) Send a signal to the indicating device (60), and the indicating device (60) sends out a warning message.

The detection and control method of the smart rescue battery may further include a charging step, wherein the charging circuit (50) is coupled to the external power source, and the detection module (32) detects the charging circuit (50) When the charging voltage is equal to the first voltage, first turn off the fourth relay (28), then turn off the first relay (22), and then the second relay (24) and the third relay ( 26) Closed, the first battery (12) and the second battery (14) are connected in parallel, the charging circuit (50) discharges the first battery (12) and the second battery (14) respectively, according to the The first battery (12) and the second battery (14) are charged.

10: Power storage unit

12: The first battery

14: second battery

20: Relay group

22: The first relay

24: second relay

26: third relay

28: Fourth Relay

30: control unit

32: Detection module

34: Microprocessor

40: output line group

42: positive wire

44: negative wire

50: Charging circuit

60: indicating device

Claims (4)

A detection and control method for a smart rescue battery. The smart rescue battery includes a power storage unit, a relay group, a control unit, an output line group, and a charging circuit, wherein the power storage unit, the control unit, and the output The wire set and the charging circuit are respectively coupled to the relay set, the power storage unit is discharged or charged by the on and off of the relay set, the power storage unit includes a first battery and a second battery, the first battery and the second battery The batteries are respectively secondary batteries, and the control unit controls the on-off state of the circuit of the relay group, according to which the first battery and the second battery are discharged in parallel or in series; the output line group and the charging circuit are respectively coupled to the control unit , The control unit includes a detection module and a microprocessor, the output line set includes a positive line and a negative line, the positive line and the negative line are used to electrically connect the starting battery of the rescued vehicle, the charging The loop is used to couple to an external power source, and rectify and transform the input power of the external power source into charging power. The detection module is used to detect the voltage; the detection control method includes the following steps: detecting the The battery voltage of the rescued vehicle: the output line group is electrically connected to the starting battery of the rescued vehicle, the detection module detects the working voltage of the starting battery; judgment: the first battery and the second battery are The voltages are respectively the first voltage, and the sum of the voltages of the first battery and the second battery is the second voltage; when the working voltage is the first voltage, perform a parallel output step; when the working voltage is the second voltage, perform A series output step; parallel output: the microprocessor controls the relay group to act, the first battery and the second battery are connected in parallel, and accordingly the first power is transmitted to the rescued vehicle through the output line group, and the first The voltage of the electric power is the first voltage; Series output: the microprocessor controls the action of the relay group, the first battery and the second battery are connected in series, and accordingly the second power is transmitted to the rescued vehicle through the output line group, and the voltage of the second power is the The second voltage. The detection and control method for a smart rescue battery according to claim 1, wherein the relay group includes a first relay, a second relay, a third relay, and a fourth relay, the first relay, the second relay The relay, the third relay, and the fourth relay are respectively normally open relays. The two contacts of the first relay are electrically connected to the positive pole of the first battery and the negative pole of the second battery. The contacts are respectively electrically connected to the positive electrode of the first battery and the positive electrode of the second battery. The two contacts of the third relay are respectively electrically connected to the negative electrode of the first battery and the negative electrode of the second battery. The two contacts of the four relays are respectively electrically connected to the positive electrode of the second battery and the positive line, and the negative line is electrically connected to the negative electrode of the first battery; when the parallel output step is performed, the first relay is kept off , The second relay and the third relay are closed, the first battery and the second battery are connected in parallel, when the detection module detects that the discharge voltage of the power storage unit is the first voltage, the fourth relay is closed, Accordingly, the first power is transmitted to the rescued vehicle; when the series output step is performed, the first relay is closed, the second relay and the third relay are disconnected, and the first battery and the second battery form a series connection, When the detection module detects that the discharge voltage of the power storage unit is the second voltage, the fourth relay is closed, and accordingly the second power is transmitted to the rescued vehicle. As described in claim 2, the detection and control method of the smart rescue battery further includes an abnormality protection and warning step, and the smart rescue battery further includes an indicator device, the indicator device Coupled with the microprocessor, the indicating device is a light indicator, a sound indicator or an LED indicator; wherein the step of detecting the battery voltage of the rescued vehicle is executed, and the detected operating voltage of the starting battery is At 0, the judgment step selects to execute the abnormal protection and warning step; based on the operating voltage of the starting battery being 0, it is judged that the positive and negative connections between the output line group and the starting battery are abnormal, and the fourth relay remains disconnected, The microprocessor sends a signal to the indicating device, and the indicating device sends out a warning message. The detection and control method of the smart rescue battery according to claim 2, further comprising a charging step, and the second relay is electrically connected to the positive pole of the second battery and coupled to the positive pole of the charging circuit, the charging circuit The positive pole of the second battery is coupled to the positive pole of the second battery, the contact point of the third relay electrically connected to the negative pole of the second battery is coupled to the negative pole of the charging loop, and the negative pole of the charging loop is connected to the negative pole of the second battery. Wherein, the charging circuit is coupled to the external power source, the detection module detects the charging voltage of the charging circuit, and when the charging voltage is equal to the first voltage, the fourth relay is turned off first, and then turned off The first relay is turned on, and then the second relay and the third relay are closed. The first battery and the second battery are connected in parallel. The charging circuit discharges the first battery and the second battery respectively, according to which the first battery and the second battery are discharged respectively. A battery and the second battery are charged.

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