CN211907637U - Battery heating system and unmanned aerial vehicle - Google Patents

Abstract

The utility model discloses a battery heating system and an unmanned aerial vehicle, which comprises a charger, a charging management system, a battery pack and a PTC heating plate, wherein the PTC heating plate is arranged around the battery pack; and the PTC heating plate is provided with a temperature detection module and an alarm device. The embodiment of the utility model discloses a set up the PTC hot plate around the battery package, when the machine that charges when charging for the battery package, can be supplied power to the PTC hot plate by the machine that charges simultaneously, can guarantee that the battery package still can normal use charging under low temperature environment, the security is high. Especially to the comparatively abominable unmanned aerial vehicle of operational environment, improved the charge efficiency and the reliability of battery package on the unmanned aerial vehicle. Additionally, the utility model discloses still set up temperature detection module and alarm device on the PTC hot plate, can master the heat input of PTC hot plate in real time to send the warning suggestion when heating temperature is too high, avoid the battery to overheat and burn out, further improved the security, but wide application in battery technical field.

Description

Battery heating system and unmanned aerial vehicle

Technical Field

The utility model belongs to the technical field of the battery technique and specifically relates to a battery heating system and unmanned aerial vehicle.

Background

Lithium ion magnetism is used as a power source, the characteristics of lithium ions are greatly influenced by the external temperature, particularly, the capacity of the battery is rapidly reduced when the battery is charged in a low-temperature environment, the internal resistance is continuously increased, and the separated lithium metal can break through a diaphragm between the positive electrode and the negative electrode of the battery to cause the short circuit in the battery and even cause the problems of combustion, explosion and the like of the battery, so that the safety is not high enough.

Along with unmanned aerial vehicle's development, unmanned aerial vehicle's application area is wider and wider more, to the use that more needs unmanned aerial vehicle under these environments of high altitude low temperature, this has just brought great examination to the environment of charging of the battery equipment on the unmanned aerial vehicle.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a high battery heating system and unmanned aerial vehicle of security.

On the one hand, the embodiment of the utility model provides a battery heating system, including charger, charge management system, battery package and PTC hot plate, the PTC hot plate sets up around the battery package; the PTC heating plate is provided with a temperature detection module and an alarm device, and the output end of the temperature detection module is connected with the input end of the charging management system; the charger is connected with the charging management system, the output end of the charger is connected with the PTC heating plate and the battery pack, and the output end of the battery pack is connected with the input end of the charging management system; and the output end of the charging management system is connected with the input end of the alarm device.

Further, the temperature detection module comprises a DS18B20 chip, a first resistor and a second resistor, wherein the DATA end of the DS18B20 chip is connected with one end of the first resistor and one end of the second resistor respectively, the GND end of the DS18B20 chip is grounded, the VDD end of the DS18B20 chip and the other end of the first resistor are both connected with a power supply, and the other end of the second resistor is connected with the PO.4 end of the STC12LE5A60S2 chip.

Furthermore, the alarm device is an alarm generator circuit, the alarm generator circuit comprises a first capacitor, a second capacitor, a KD-9561 sounding chip, a TWH8778 switch circuit, a loudspeaker, a third resistor, a first diode, a second diode and a power supply, one end of the first capacitor is respectively connected with one end of the third resistor, a pin 1 of the KD-9561 sounding chip and the cathode of the second diode, the other end of the third resistor is respectively connected with a pin 1 of the TWH8778 switch circuit, one end of the second capacitor and one end of the power supply, the other end of the second capacitor is respectively connected with one end of the loudspeaker, the anode of the first diode, a pin 2 of the TWH8778 switch circuit, a pin 2 of the KD-9561 sounding chip, the anode of the second diode, the other end of the first capacitor and the other end of the power supply, the other end of the loudspeaker is respectively connected with a pin 3 of the TWH8778 switch circuit and the cathode of the first diode, pin 4 of the TWH8778 switching circuit is connected to pin 3 of the KD-9561 sounding chip.

Further, a leakage detection circuit is arranged on the battery pack, and the leakage detection device is composed of peripheral circuits of the M54122L chip and the M54122L chip.

Further, the charging management system comprises a timing module, the timing module comprises a 555 timer, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a key switch, a toggle switch, a third capacitor, a power supply and a relay, wherein pin 1 of the 555 timer is respectively connected with one end of the seventh resistor, one end of the eighth resistor, one end of the sixth resistor, one end of the seventh resistor and one end of the eighth resistor, pin 2 of the 555 timer is connected with one end of the third capacitor, pin 3 of the 555 timer is connected with the input end of the toggle switch, pin 4 of the 555 timer is respectively connected with the other end of the eighth resistor and one end of the key switch, pin 5 of the 555 timer is respectively connected with the other end of the third capacitor and the other end of the key switch, pin 6 of the 555 timer is connected with one end of the relay, the power is connected to the 7 feet of the 555 timer, the other end of the relay controller is connected with the power, the output end of the toggle switch comprises a first switching point, a second switching point, a third switching point, a fourth switching point, a fifth switching point, a sixth switching point and a seventh switching point, the second switching point is connected to the other end of the seventh resistor, the first switching point is connected to the other end of the eighth resistor, the fourth switching point is connected to the other end of the sixth resistor, the fifth switching point is connected to the other end of the seventh resistor, and the third switching point and the sixth switching point of the toggle switch are suspended.

Further, the charging management system further comprises a wireless communication circuit, and the wireless communication circuit is composed of a CC1101 chip and a peripheral circuit of the CC1101 chip.

Further, the charging management system further comprises a display module, the display module comprises an LCD1602 liquid crystal module, a slide rheostat, a triode and a ninth resistor, the pin 1 of the LCD1602 liquid crystal module is grounded, the pin 2 of the LCD1602 liquid crystal module is connected with the anode of a power supply, the pin 3 of the LCD1602 liquid crystal module is connected with the adjusting end of the slide rheostat, the first fixed end of the slide rheostat is connected with the positive electrode of the power supply, the second fixed end of the slide rheostat is grounded, the 15 pin of the LCD1602 liquid crystal module is connected with the anode of the backlight source, the 16 feet of the LCD1602 liquid crystal module is connected with the collector of the triode, the base of the triode is connected with one end of the ninth resistor, the emitting electrode of the triode is grounded, and the other ends of the 4 pin, the 5 pin, the 6 pin, the 7 pin, the 8 pin, the 9 pin, the 10 pin, the 11 pin, the 12 pin, the 13 pin, the 14 pin and the ninth resistor of the LCD1602 liquid crystal module are connected with the processor.

The second aspect of the utility model also provides an unmanned aerial vehicle, this unmanned aerial vehicle includes foretell battery heating system.

Above-mentioned the utility model discloses technical scheme in the embodiment has following advantage: the embodiment of the utility model discloses a set up the PTC hot plate around the battery package, when the machine that charges when charging for the battery package, can be supplied power to the PTC hot plate by the machine that charges simultaneously, can guarantee that the battery package still can normal use charging under low temperature environment, the security is high. Especially to the comparatively abominable unmanned aerial vehicle of operational environment, improved the charge efficiency and the reliability of battery package on the unmanned aerial vehicle. Additionally, the utility model discloses still set up temperature detection module and alarm device on the PTC hot plate, can master the heat input of PTC hot plate in real time to send the suggestion of reporting to the police when heating temperature is too high, avoid the battery overheat to burn out, further improved the security.

Drawings

Fig. 1 is a block diagram of the overall structure of a battery heating system according to the present invention;

fig. 2 is a schematic circuit diagram of the temperature detection module of the present invention;

fig. 3 is a schematic circuit diagram of the alarm device of the present invention;

FIG. 4 is a schematic circuit diagram of the leakage detection circuit of the present invention;

fig. 5 is a schematic circuit diagram of the timing module of the present invention;

fig. 6 is a schematic circuit diagram of a wireless communication circuit according to the present invention;

fig. 7 is a schematic circuit diagram of the display module of the present invention.

Detailed Description

Referring to fig. 1, an embodiment of the present invention provides a battery heating system, including a charger, a charging management system, a battery pack, and a PTC heating plate, where the PTC heating plate is disposed around the battery pack; the PTC heating plate is provided with a temperature detection module and an alarm device, and the output end of the temperature detection module is connected with the input end of the charging management system; the charger is connected with the charging management system, the output end of the charger is connected with the PTC heating plate and the battery pack, and the output end of the battery pack is connected with the input end of the charging management system; and the output end of the charging management system is connected with the input end of the alarm device.

The charger is used for charging the battery pack and providing a working power supply for the PTC heating plate.

And the charging management system is used for acquiring the electric quantity condition of the battery pack and triggering the control of the charger.

And the PTC heating plate is used for heating the battery pack.

And the temperature detection module is used for detecting the temperatures of the battery pack and the PTC heating plate.

And the alarm device is used for giving an alarm prompt according to the control signal of the charging management system.

Specifically, as shown in fig. 2, the temperature detection module of this embodiment includes a DS18B20 chip, a first resistor R21 and a second resistor R22, a DATA end of the DS18B20 chip is connected to one end of the first resistor and one end of the second resistor, respectively, a GND end of the DS18B20 chip is grounded, a VDD end of the DS18B20 chip and the other end of the first resistor are both connected to a power supply, and the other end of the second resistor is connected to a po.4 end of the STC12LE5a60S2 chip. The STC12LE5a60S2 chip is a control chip of this embodiment, and may be used as a control chip of a charging management system, for example.

In this embodiment, the DS18B20 chip is a temperature sensor in this circuit, which can reflect the temperature value of the device in the form of 9-bit digital quantity, and implement the receiving and sending of signals through a single-wire interface (and DATA end), so the temperature detection module can implement the connection with the charging management system (STC12LE5a60S2 chip) with only one connection wire, and its temperature measurement range is-55 to +125 ℃.

In some embodiments, as shown in fig. 3, the alarm device is an alarm generator circuit including a first capacitor C31, a second capacitor C32, a KD-9561 sounding chip, a TWH8778 switching circuit, a speaker BL, a third resistor R31, a first diode D31, a second diode D32, and a power supply Vcc, one end of the first capacitor being connected to one end of the third resistor, pin 1 of the KD-9561 sounding chip, and a cathode of the second diode, respectively, the other end of the third resistor being connected to pin 1 of the TWH8778 switching circuit, one end of the second capacitor, and one end of the power supply, the other end of the second capacitor being connected to one end of the speaker, an anode of the first diode, pin 2 of the TWH8778 switching circuit, pin 2 of the KD-9561 sounding chip, an anode of the second diode, the other end of the first capacitor, and the other end of the power supply, respectively, the other end of the loudspeaker is respectively connected with a pin 3 of a TWH8778 switch circuit and the negative electrode of the first diode, and a pin 4 of the TWH8778 switch circuit is connected with a pin 3 of the KD-9561 sounding chip.

The circuit of fig. 3 mainly comprises a sounding integrated circuit and a switch integrated circuit, and when the circuit works, a KD-9561 sounding chip IC1 outputs an alarm signal, and the alarm signal is processed and amplified by a TWH8778 high-current switch integrated circuit IC2 to push a loudspeaker BL to give out a flood and bright alarm sound. The IC1 adopts KD-9561 sounding IC, also can adopt KD-9562 sounding IC, IC2 adopts TWH8778 switch circuit, when the voltage of the power supply is 12V, the loudspeaker BL should select the loudspeaker of 8 ohm, more than 3W or the special horn type loudspeaker, the third resistor R1 resistance value 300 ohm-510 ohm, the second diode D2 selects 3V stabilivolt, the first diode D1 selects 1N4001 rectifier diode.

According to the embodiment, the alarm device can give an alarm prompt when the temperature is detected to be abnormal, so that a user can maintain the temperature as soon as possible.

In addition, the battery pack of the present embodiment is provided with a leakage detection circuit, and the leakage detection device is composed of peripheral circuits of the M54122L chip and the M54122L chip. As shown in fig. 4, the circuit is connected with the host through the contact switch of the relay, when the circuit has no leakage fault, the magnetic fields generated by the live wire and the zero line passing through the inductance coil L cancel each other out, and no alternating voltage is generated on the coil; when the circuit has a leakage fault, the inductance coil L generates alternating voltage, the pin 7 of the M54122L chip generates high level, the relay is driven to work, the relay sends a corresponding signal to the industrial control board (for example, the industrial control board is controlled to stop working through a contact switch), and meanwhile, the overvoltage protection circuit consisting of Ru1, Ru2 and D1 starts working to avoid the fault caused by overlarge voltage. The varistor Ru1 is used to absorb overvoltage caused by lightning or neutral fault. When the power supply voltage is increased, the resistance of Ru2 is reduced, the voltage on R5 is increased, and when the power supply voltage is increased to 275V, the voltage on R5 is about 1.8V, and the D1 carries out overvoltage protection.

This embodiment is through addding electric leakage detection circuitry, can prevent that the battery package from taking place the electric leakage accident in charging process, has improved the security that the battery package charges.

In some embodiments, the charging management system comprises a timing module, the timing module comprises a 555 timer, a fourth resistor R51, a fifth resistor R52, a sixth resistor R53, a seventh resistor R54, an eighth resistor R55, a key switch, a toggle switch, a third capacitor, a power supply and a relay, wherein a pin 1 of the 555 timer is respectively connected with one end of the seventh resistor, one end of the eighth resistor, one end of the sixth resistor, one end of the seventh resistor and one end of the eighth resistor, a pin 2 of the 555 timer is connected with one end of the third capacitor, a pin 3 of the 555 timer is connected with an input end of the toggle switch, a pin 4 of the 555 timer is respectively connected with the other end of the eighth resistor and one end of the key switch, a pin 5 of the 555 timer is respectively connected with the other end of the third capacitor and the other end of the key switch, and a pin 6 of the 555 timer is connected with one end of the relay controller, the power is connected to the 7 feet of the 555 timer, the other end of the relay controller is connected with the power, the output end of the toggle switch comprises a first switching point, a second switching point, a third switching point, a fourth switching point, a fifth switching point, a sixth switching point and a seventh switching point, the second switching point is connected to the other end of the seventh resistor, the first switching point is connected to the other end of the eighth resistor, the fourth switching point is connected to the other end of the sixth resistor, the fifth switching point is connected to the other end of the seventh resistor, and the third switching point and the sixth switching point of the toggle switch are suspended.

As shown in fig. 5, the timing values corresponding to the respective gears of the toggle switch in the present circuit are determined according to the resistance values of the respective resistors in the figure, and the timing values corresponding to the 1 st gear, the 2 nd gear, the 4 th gear, the 5 th gear and the 7 th gear of the toggle switch in the present embodiment are 300s, 400s, 500s, 600s and 700s, respectively. In the circuit, a key switch AN is used for starting a timing function, a button AN is pressed, a relay is electrified (the function of sending a timing signal to a controller in real time is realized by connecting a contact switch with the controller), and when the timing time is up, the working voltage is not output by 6 pins of a 555 timer any more, and the relay controller is powered off. Wherein, C should be tantalum electrolytic capacitor to improve timing precision; the third switching point and the sixth switching point of the output end of the toggle switch are used for expanding timing gears, extra timing time can be provided, and the toggle switch is more practical.

The timing module is additionally arranged on the charging management system, so that the charging time of the battery pack can be controlled, the working time of the PTC heating plate can also be controlled, the battery pack can be prevented from heating due to the fact that the charging time of the battery pack is too long or the heating time of the PTC heating plate is too long, and the service life of the battery pack is prolonged.

In some embodiments, the charging management system also includes a wireless communication circuit comprised of the CC1101 chip and peripheral circuits of the CC1101 chip.

The charging information of the battery can be sent to a remote terminal, such as a smart phone, through a wireless communication circuit, so that a user can remotely master the relevant information of the battery heating system.

The wireless communication circuit of the present embodiment can be implemented by using a circuit shown in fig. 6.

In some embodiments, the charging management system further comprises a display module, the display module comprises an LCD1602 liquid crystal module, a sliding rheostat RP, a transistor Q, and a ninth resistor R71, the pin 1 of the LCD1602 liquid crystal module is grounded, the pin 2 of the LCD1602 liquid crystal module is connected with the anode of a power supply, the pin 3 of the LCD1602 liquid crystal module is connected with the adjusting end of the slide rheostat, the first fixed end of the slide rheostat is connected with the positive electrode of the power supply, the second fixed end of the slide rheostat is grounded, the 15 pin of the LCD1602 liquid crystal module is connected with the anode of the backlight source, the 16 feet of the LCD1602 liquid crystal module is connected with the collector of the triode, the base of the triode is connected with one end of the ninth resistor, the emitting electrode of the triode is grounded, and the other ends of the 4 pin, the 5 pin, the 6 pin, the 7 pin, the 8 pin, the 9 pin, the 10 pin, the 11 pin, the 12 pin, the 13 pin, the 14 pin and the ninth resistor of the LCD1602 liquid crystal module are connected with the processor.

The operating principle of the circuit shown in fig. 7 is: DB 0-DB 7 of an LCD1602 liquid crystal module is connected with P00-P07 ports of a single chip microcomputer AT89C52 (namely a processor) and is used for displaying power utilization information of a user; the register selection input end RS of the LCD1602 liquid crystal module with 4 pins controls the LCD1602, the enable signal input end E of the LCD1602 liquid crystal module with 5 pins controls the read-write control input end R/W of the LCD1602 liquid crystal module with 6 pins, and the contrast of liquid crystal display is controlled by adjusting the resistance value of RP.

The charging information of the battery pack can be displayed in real time through the display module, and the user can conveniently master the dynamic state of the battery pack.

Additionally, the utility model also provides an unmanned aerial vehicle, including above-mentioned battery heating system.

The unmanned aerial vehicle of this embodiment can work under the abominable condition of low temperature after having applied the battery heating system in above-mentioned embodiment to guarantee battery charging's safety.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims (8)

1. A battery heating system, characterized by: the battery pack charging system comprises a charger, a charging management system, a battery pack and a PTC heating plate, wherein the PTC heating plate is arranged around the battery pack; the PTC heating plate is provided with a temperature detection module and an alarm device, and the output end of the temperature detection module is connected with the input end of the charging management system; the charger is connected with the charging management system, the output end of the charger is connected with the PTC heating plate and the battery pack, and the output end of the battery pack is connected with the input end of the charging management system; and the output end of the charging management system is connected with the input end of the alarm device.

2. A battery heating system as claimed in claim 1, wherein: the temperature detection module comprises a DS18B20 chip, a first resistor and a second resistor, wherein the DATA end of the DS18B20 chip is connected with one end of the first resistor and one end of the second resistor respectively, the GND end of the DS18B20 chip is grounded, the VDD end of the DS18B20 chip and the other end of the first resistor are both connected with a power supply, and the other end of the second resistor is connected with the PO.4 end of the STC12LE5A60S2 chip.

3. A battery heating system as claimed in claim 1, wherein: the alarm device is an alarm generator circuit, the alarm generator circuit comprises a first capacitor, a second capacitor, a KD-9561 sounding chip, a TWH8778 switch circuit, a loudspeaker, a third resistor, a first diode, a second diode and a power supply, one end of the first capacitor is respectively connected with one end of the third resistor, a pin 1 of the KD-9561 sounding chip and the cathode of the second diode, the other end of the third resistor is respectively connected with a pin 1 of the TWH8778 switch circuit, one end of the second capacitor and one end of the power supply, the other end of the second capacitor is respectively connected with one end of the loudspeaker, the anode of the first diode, a pin 2 of the TWH8778 switch circuit, a pin 2 of the KD-9561 sounding chip, the anode of the second diode, the other end of the first capacitor and the other end of the power supply, the other end of the loudspeaker is respectively connected with a pin 3 of the TWH8778 switch circuit and the cathode of the first diode, pin 4 of the TWH8778 switching circuit is connected to pin 3 of the KD-9561 sounding chip.

4. A battery heating system as claimed in claim 1, wherein: the battery pack is provided with an electric leakage detection circuit which is composed of peripheral circuits of an M54122L chip and an M54122L chip.

5. A battery heating system as claimed in claim 1, wherein: the charging management system comprises a timing module, the timing module comprises a 555 timer, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a key switch, a toggle switch, a third capacitor, a power supply and a relay, wherein a pin 1 of the 555 timer is respectively connected with one end of the seventh resistor, one end of the eighth resistor, one end of the sixth resistor, one end of the seventh resistor and one end of the eighth resistor, a pin 2 of the 555 timer is connected with one end of the third capacitor, a pin 3 of the 555 timer is connected with the input end of the toggle switch, a pin 4 of the 555 timer is respectively connected with the other end of the eighth resistor and one end of the key switch, a pin 5 of the 555 timer is respectively connected with the other end of the third capacitor and the other end of the key switch, a pin 6 of the 555 timer is connected with one end of a relay controller, and a pin 7 of the 555 timer is connected with the power supply, the other end of the relay controller is connected with a power supply, the output end of the toggle switch comprises a first switching point, a second switching point, a third switching point, a fourth switching point, a fifth switching point, a sixth switching point and a seventh switching point, the other end of the seventh resistor is connected with the second switching point, the other end of the eighth resistor is connected with the first switching point, the other end of the sixth resistor is connected with the fourth switching point, the other end of the seventh resistor is connected with the fifth switching point, and the third switching point and the sixth switching point of the toggle switch are suspended.

6. A battery heating system according to claim 5, wherein: the charging management system further comprises a wireless communication circuit, wherein the wireless communication circuit is composed of a CC1101 chip and peripheral circuits of the CC1101 chip.

7. A battery heating system according to claim 5, wherein: the charging management system also comprises a display module, the display module comprises an LCD1602 liquid crystal module, a slide rheostat, a triode and a ninth resistor, the pin 1 of the LCD1602 liquid crystal module is grounded, the pin 2 of the LCD1602 liquid crystal module is connected with the anode of a power supply, the pin 3 of the LCD1602 liquid crystal module is connected with the adjusting end of the slide rheostat, the first fixed end of the slide rheostat is connected with the positive electrode of the power supply, the second fixed end of the slide rheostat is grounded, the 15 pin of the LCD1602 liquid crystal module is connected with the anode of the backlight source, the 16 feet of the LCD1602 liquid crystal module is connected with the collector of the triode, the base of the triode is connected with one end of the ninth resistor, the emitting electrode of the triode is grounded, and the other ends of the 4 pin, the 5 pin, the 6 pin, the 7 pin, the 8 pin, the 9 pin, the 10 pin, the 11 pin, the 12 pin, the 13 pin, the 14 pin and the ninth resistor of the LCD1602 liquid crystal module are connected with the processor.

8. An unmanned aerial vehicle, its characterized in that: comprising a battery heating system according to any of claims 1-7.

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