TW201947807A - Charging equipment and system for rapidly charging vehicle battery after controlling temperature in advance retain temperature of the vehicle battery module that is not too low so as to achieve protecting and prolonging service life of the vehicle battery module - Google Patents

Abstract

A charging system for rapidly charging vehicle battery after controlling temperature in advance includes charging equipment and an electric vehicle. The charging equipment includes an equipment shell unit, a charging management unit, a refrigerant circulating control unit, a refrigerant circulating pipeline unit, a composite pipeline unit and an equipment control unit. The equipment control unit controls the refrigerant circulating control unit to deliver a refrigerant and then controls the charging management unit to deliver power for a predetermined temperature regulation time. The electric vehicle includes a vehicle shell unit, a vehicle battery module, a power storage management module, a vehicle pipeline unit and a vehicle control unit. The vehicle pipeline unit is provided with a vehicle inflow pipe, a vehicle outflow pipe and a vehicle temperature control pipe. The vehicle control unit controls the power storage management module for electricity delivered to the vehicle battery module.

Description

Charging device and system for pre-controlling temperature of vehicle battery and rapid charging

The invention relates to a charging device and a charging system, in particular to a charging device and a system for controlling the temperature of a vehicle battery in advance and then quickly charging.

Generally speaking, lithium ion (Lithium ion) batteries have the advantages of high energy density, high output power, low self-discharge, etc. Therefore, the battery types of existing electric vehicles are still mainly lithium ion batteries.

However, because the electrochemical effect of lithium-ion batteries is easily changed with temperature changes, too high or too low temperatures will cause the characteristics of the lithium-ion batteries to change, causing the battery to be damaged during rapid charging, thereby reducing battery life. In other words, in order to shorten the waiting time when the electric vehicle is performing the charging operation, the lithium-ion battery is often quickly charged with a large current. This will cause the battery temperature to rise rapidly, resulting in a lithium-ion battery. Thermal decay will shorten the service life, or when the temperature of the battery is too low due to the influence of climate, the battery will also malfunction.

Therefore, a first object of the present invention is to provide a charging system that controls the temperature of a vehicle battery in advance and then quickly charges it.

Therefore, the charging system of the present invention for pre-controlling the temperature of the vehicle battery and then quickly charging includes a charging device and an electric vehicle.

The charging device includes a device housing unit, a charging management unit for providing power, a refrigerant cycle control unit electrically connected to the charge management unit, a refrigerant cycle pipeline unit connected to the refrigerant cycle control unit, and a The composite pipeline unit of the equipment casing unit, and an equipment control unit electrically connecting the charge management unit and the refrigerant circulation control unit, the refrigerant circulation pipeline unit has a first pipeline group, and the first pipeline group has A first outlet pipe connected to the refrigerant circulation control unit. The composite pipeline unit has a relay cable electrically connected to the charge management unit and a relay outlet pipe connected to the first outlet pipe. The device The control unit controls the refrigerant circulation control unit to send the refrigerant through the first outlet pipe, and then controls the charging management unit to send power through the relay cable after a predetermined temperature adjustment time.

The electric vehicle includes a vehicle housing unit, a vehicle battery module for storing power, a power storage management module electrically connected to the vehicle battery module and capable of being electrically connected to the relay cable, A vehicle piping unit disposed on the vehicle battery module and a vehicle control unit electrically connected to the power storage management module and signally connected to the equipment control unit. The vehicle piping unit has a A vehicle inlet pipe communicating with the relay outlet pipe, a vehicle outlet pipe communicating with the vehicle housing unit outside, and a vehicle inlet pipe communicating with the vehicle inlet pipe and the vehicle outlet pipe, and A vehicle temperature control tube for adjusting the temperature of the vehicle battery module, and the vehicle control unit controls the amount of power stored in the vehicle battery module sent by the power storage management module.

Therefore, a second object of the present invention is to provide a charging device that controls the temperature of a vehicle battery in advance and then quickly charges it.

Therefore, the charging device of the present invention for pre-controlling the temperature of the vehicle battery and then quickly charging includes a device housing unit, a charge management unit, a refrigerant cycle control unit, a refrigerant cycle pipeline unit, a composite pipeline unit, and a device control unit.

The charging management unit is used to provide power.

The refrigerant cycle control unit is electrically connected to the charge management unit.

The refrigerant circulation pipeline unit communicates with the refrigerant circulation control unit and includes a first pipeline group. The first pipeline group has a first outlet pipe communicating with the refrigerant circulation control unit.

The composite pipeline unit is disposed in the equipment housing unit, and includes a relay cable electrically connected to the charging management unit, and a relay outlet pipe communicating with the first outlet pipe.

The device control unit is electrically connected to the charge management unit and the refrigerant cycle control unit. After controlling the refrigerant cycle control unit to send the refrigerant through the first outflow pipe, the device management unit controls the charge management unit to pass the predetermined temperature adjustment time. The relay cable sends out power.

The effect of the present invention is that the refrigerant circulation control unit and the refrigerant circulation pipeline unit provide refrigerant, and controls the charging management unit to send power only after the refrigerant sends out the predetermined temperature adjustment time, and the vehicle can be charged before charging. The battery module performs temperature control in advance, and maintains the temperature of the battery module of the vehicle within the required battery temperature range during charging. In this way, the present invention can control the battery module of the vehicle (i.e., vehicle battery). ) The temperature is used for emergency charging in an effective and safe area, and the temperature of the battery module of the vehicle can be maintained not too low to achieve the effect of protecting and extending the service life of the battery module of the vehicle.

Referring to FIG. 1, a first embodiment of a charging system for temperature control and rapid charging of a vehicle battery in advance according to the present invention includes a charging device 1, an electric vehicle 2, and a refrigerant constant temperature storage device 3. In the first embodiment, the charging device 1 is a charging station, and the electric vehicle 2 may be an electric vehicle or an electric vehicle that can be matched with the charging station, but is not limited thereto.

The charging device 1 includes a device housing unit 11, a charging management unit 12 adapted to be electrically connected to a power system 9 (eg, a mains line, a relay transmission line, a power station, etc.), and an electrical connection to the charging management unit 12. A refrigerant circulation control unit 13 connected to the refrigerant constant temperature storage device 3 (for example, a storage tank, a storage tower, etc.), a refrigerant circulation pipeline unit 14 connected to the refrigerant circulation control unit 13, and a casing unit 11 provided in the equipment A composite pipeline unit 15, a device control unit 16 electrically connected to the charge management unit 12 and the refrigerant cycle control unit 13, and a device power storage unit 17 electrically connected to the charge management unit 12 and used to store power.

It can be understood that the charging management unit 12 has at least the functions of detecting the current magnitude, falling current, and open circuit protection, and during the charging process, the charging management unit 12 can provide a locomotive with a current of about 300 to 500 amps (A). Can provide automotive current of about 1,000 to 10,000 amps. In the first embodiment, the refrigerant circulation control unit 13 may have a pump (not shown) for pressurizing and pushing the refrigerant, a cooler (not shown) for cooling the refrigerant, and Heater for heating refrigerant (not shown). In addition, the device power storage unit 17 is a battery bank, but is not limited thereto.

The refrigerant circulation pipeline unit 14 has a first pipeline group 18 which communicates with the refrigerant circulation control unit 13 and has a first outlet pipe 181 and a first inlet pipe 182, and a power storage unit provided in the equipment. 17 of the second pipeline group 19. In the first embodiment, the second pipeline group 19 has a second outlet pipe 191 connected to the refrigerant circulation control unit 13, a second inlet pipe 192 connected to the refrigerant circulation control unit 13, and a A device temperature control tube 193 that is passed between the second outflow tube 191 and the second inflow tube 192 and is used to adjust the temperature of the power storage unit 17 of the device.

The composite pipeline unit 15 has a relay cable 151 electrically connected to the charging management unit 12, a relay outlet pipe 152 connected to the first outlet pipe 181, and a middle pipe connected to the first inlet pipe 182.进 进 流 管 153。 Following the inlet pipe 153. It should be noted that, in practical applications, the relay cable 151, the relay outflow pipe 152, and the relay inflow pipe 153 can be integrated into the same pipeline cover, showing the appearance of only one pipeline. It can also be in a state of being separated into three pipelines.

The device control unit 16 controls the amount of power sent from the charge management unit 12 through the relay cable 151, and controls the refrigerant cycle control unit 13 to send the power through the first outlet pipe 181 and the second outlet pipe 191. The amount of refrigerant and controls the amount of refrigerant recovered by the refrigerant circulation control unit 13 through the first inlet pipe 182 and the second inlet pipe 192. The device control unit 16 controls the refrigerant circulation control unit 13 to send refrigerant, and then controls the charging management unit 12 to send power after a predetermined temperature adjustment time (for example, 3 to 5 seconds).

In the first embodiment, the refrigerant sent by the refrigerant circulation control unit 13 is an insulating liquid, such as pure water, oil, etc., so as to achieve the effect of conducting thermal energy without causing leakage or short circuit.

The electric vehicle 2 includes a vehicle battery module 21 for storing power, a power storage management module 22 electrically connected to the vehicle battery module 21 and capable of being electrically connected to the relay cable 151, and a device. A vehicle pipeline unit 23 of the vehicle battery module 21, a vehicle control unit 24 electrically connected to the power storage management module 22 and signally connected to the equipment control unit 16, and a vehicle pipeline unit provided in the vehicle pipeline unit 23 and the pipeline detection unit 25 of the vehicle control unit 24 and a vehicle housing unit 26 are electrically connected.

In the first embodiment, the carrier battery module 21 is a lithium ion (Lithium ion) battery pack, but is not limited thereto. In addition, the power storage management module 22 is actually a battery management system (BMS).

The vehicle pipeline unit 23 has a vehicle inlet pipe 231 which can communicate with the relay outlet pipe 152, and a vehicle inlet pipe 231 which communicates with the outside of the vehicle housing unit 26 and can communicate with the relay inlet pipe 153. The vehicle outlet tube 232 and a vehicle temperature control tube 233 connected between the vehicle inlet tube 231 and the vehicle outlet tube 232 and used to adjust the temperature of the vehicle battery module 21. In the first embodiment, the vehicle pipeline unit 23 performs heat exchange with the vehicle battery module 21 through a refrigerant to keep the temperature of the vehicle battery module 21 within a set battery temperature interval (for example, : 10 ° C to 45 ° C).

The vehicle control unit 24 controls the amount of power stored by the power storage management module 22 into the vehicle battery module 21. It can be understood that the vehicle control unit 24 can notify the equipment control unit 16 to control the charging management unit 12 to start or stop power transmission by wireless or wired signals, and can also notify the equipment control unit 16 to control the refrigerant cycle by a signal. The control unit 13 starts or stops pushing the refrigerant.

The pipeline detection unit 25 is used to detect the flow conditions of the refrigerant in the vehicle inlet pipe 231, the vehicle outlet pipe 232, and the vehicle temperature control pipe 233. If the pipeline detection unit 25 detects abnormal flow conditions of the refrigerant in the vehicle inlet pipe 231, the vehicle outlet pipe 232, and the vehicle temperature control pipe 233, for example, the pressure is insufficient (a pipeline is broken Leakage) or the pressure is too high (the pipeline is blocked), the pipeline detection unit 25 will immediately notify the vehicle control unit 24 to control the power storage management module 22 to stop sending power to the vehicle battery module 21 To avoid affecting the life of the vehicle battery module 21.

The refrigerant constant temperature storage device 3 communicates with the refrigerant circulation control unit 13 and is used to store and maintain the refrigerant in a refrigerant temperature range (for example, 28 ° C to 30 ° C). When the temperature of the stored refrigerant is lower than 28 ° C, the refrigerant is Heating is performed, and when the temperature is higher than 30 ° C, the refrigerant is cooled.

The operation of the charging system of the present invention for pre-controlling the temperature of the vehicle battery and then quickly charging is as follows:

First, the user needs to properly connect the composite pipeline unit 15 to the electric vehicle 2, that is, to confirm that the relay outflow pipe 152 and the relay inflow pipe 153 are connected to the vehicle inflow pipe 231 and the carrier, respectively. The outflow pipe 232 is connected correctly, and the relay cable 151 electrically connects the charging management unit 12 and the power storage management module 22 together.

Then, the vehicle control unit 24 notifies the equipment control unit 16 of the signal, so that the refrigerant circulation control unit 13 starts to send the constant temperature refrigerant from the first outflow pipe 181 through the relay outflow pipe 152 and the vehicle inflow. The pipe 231 is sent to the vehicle temperature control pipe 233, and after counting the predetermined temperature adjustment time, the charging management unit 12 is controlled to send power to the power storage management module 22 through the relay cable 151, and the power storage management The module 22 sends power to the vehicle battery module 21 for storage.

When the temperature of the vehicle power storage module 21 is higher than the battery temperature interval, the refrigerant circulation control unit 13 passes a constant temperature refrigerant (for example, 30 ° C liquid pure water) through the first outlet pipe 181, the relay The outflow tube 152 and the vehicle inlet tube 231 are sent to the vehicle temperature control tube 233. The vehicle temperature control tube 233 performs heat exchange to take away the thermal energy generated by the vehicle battery module 21, and then sequentially passes The carrier outlet pipe 232, the relay inlet pipe 153, and the first inlet pipe 182 send the temperature-increased refrigerant back to the refrigerant cycle control unit 13 to cool down and cool down again for the next cycle.

When the climate is extremely cold, causing the temperature of the vehicle battery module 21 to be extremely low (for example, -15 ° C), a constant temperature refrigerant (for example, liquid pure water at 30 ° C) is passed through the first through the refrigerant circulation control unit 13. The outlet tube 181, the relay outlet tube 152, and the vehicle inlet tube 231 are sent to the vehicle temperature control tube 233, so that the temperature of the vehicle battery module 21 can reach the required battery temperature interval ( For example: 10 ° C. to 45 ° C.), in this way, the temperature of the battery module 21 of the vehicle can be maintained within the battery temperature range in tropical or cold regions.

It can be understood that the refrigerant circulation control unit 13 can also perform similar temperature control operations on the power storage unit 17 of the device, and details are not described herein again.

Finally, when the vehicle battery module 21 is fully charged, the vehicle control unit 24 again signals the device control unit 16 and the charging management unit 12 stops transmitting power to the power storage management module 22. At this time, the The refrigerant circulation control unit 13 stops pushing the refrigerant out of the first outflow pipe 181, and fully recovers the remaining refrigerant from the first inflow pipe 182, thus completing the charging operation of the electric vehicle 2.

It is worth mentioning that the refrigerant in the refrigerant circulation pipeline unit 14 may be cyclic as described above, but may also be non-circulating. For example, after the electric vehicle 2 is connected to the charging device 1, the refrigerant The circulation control unit 13 sends the constant temperature refrigerant through the first outflow pipe 181, and detects the refrigerant condition in the vehicle temperature control pipe 233 through the pipeline detection unit 25. When the temperature in the vehicle temperature control pipe 233 is When the refrigerant is full, the vehicle control unit 24 is notified to the equipment control unit 16 to control the refrigerant cycle control unit 13 to stop outputting refrigerant until the temperature of the vehicle battery module 21 reaches the battery temperature interval, and then passes The first inlet pipe 182 recovers the refrigerant.

Through the above description, the advantages of the present invention are summarized as follows:

1. The present invention provides refrigerant through the refrigerant circulation control unit 13 and the refrigerant circulation pipeline unit 14 and controls the charging management unit 12 to send out electricity only after the refrigerant sends out the predetermined temperature adjustment time, and the battery can be charged before charging. The battery module 21 performs temperature control in advance, and maintains the temperature of the vehicle battery module 21 at the required battery temperature interval during charging, so that the present invention can maintain the temperature of the battery module 21 of the vehicle. When the temperature is within the effective and safe area for emergency charging, the temperature of the battery module 21 of the vehicle can be maintained not too low, so as to achieve the effect of protecting and extending the service life of the battery module 21 of the vehicle.

In addition, by controlling the device control unit 16 to send the refrigerant through the predetermined temperature adjustment time after sending out the refrigerant, and then controlling the charging management unit 12 to send out power, it is also possible to charge after the temperature of the vehicle battery module 21 is uniformized. In this way, the problem that the temperature difference between the inside and outside of the vehicle battery module 21 at the beginning of the heat exchange is too large and the charging unevenness is easily damaged can be avoided, so that the uniform charging and extending the life of the vehicle battery module 21 can be achieved Effect.

2. In the present invention, the pipeline detection unit 25 detects the flow condition of the refrigerant in the vehicle pipeline unit 23, and notifies the vehicle control unit 24 when abnormal flow conditions are detected, so that the power storage management The module 22 stops transmitting power to the vehicle battery module 21 so as to prevent the battery battery 21 from being abnormally or damaged due to the temperature or excessive temperature of the vehicle battery module 21 caused by abnormal refrigerant circulation.

Referring to FIG. 2, a second embodiment of the present invention is shown. The second embodiment is similar to the first embodiment. The difference between the second embodiment and the first embodiment lies in:

The first pipeline group 18 has a first outlet pipe 181.

The composite pipeline unit 15 has a relay cable 151 electrically connected to the charging management unit 12, and a relay outlet pipe 152 connected to the first outlet pipe 181.

The carrier outlet pipe 232 is suitable for communicating with a refrigerant recovery device 8.

The equipment control unit 16 controls the amount of refrigerant sent from the refrigerant circulation control unit 13 through the first outlet pipe 181 and the second outlet pipe 191, and controls the refrigerant circulation control unit 13 to retract through the second inlet pipe 192 Amount of refrigerant.

The pipeline detection unit 25 is used to detect the flow condition of the refrigerant in the vehicle inlet pipe 231 and the vehicle temperature control pipe 233.

Before the vehicle battery module 21 starts to be charged, the refrigerant circulation control unit 13 pushes the thermostatic refrigerant from the first outlet pipe 181 through the relay outlet pipe 152 into the vehicle inlet pipe 231, and by After the vehicle temperature control tube 233 has taken away or provided the thermal energy of the vehicle battery module 21, the refrigerant that has undergone the heat exchange is directly discharged from the vehicle outlet pipe 232 to the vehicle housing unit 26, and is connected by Collected by the refrigerant recovery device 8 of the refrigerant constant temperature storage device 3 to recycle the refrigerant again.

It is worth mentioning that, in actual use, if the refrigerant used is liquid pure water, the used liquid pure water can also be directly discharged from the carrier outlet pipe 232 to be leaked, and no longer used for recycling.

In this way, the second embodiment can achieve the same purpose and effect as the first embodiment described above.

In summary, the charging system of the present invention for pre-controlling the temperature of the vehicle battery and then fast charging can not only control the temperature of the vehicle battery module 21 during charging, but also monitor to prevent the abnormality of the refrigerant cycle from causing the vehicle battery module. Group 21 reduces the life, so it can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, any simple equivalent changes and modifications made according to the scope of the patent application and the contents of the patent specification of the present invention are still Within the scope of the invention patent.

1‧‧‧ charging equipment

11‧‧‧Equipment housing unit

12‧‧‧Charge Management Unit

13‧‧‧Refrigerant circulation control unit

14‧‧‧Refrigerant circulation pipeline unit

15‧‧‧ composite pipeline unit

151‧‧‧ trunk cable

152‧‧‧Relay Outflow Pipe

153‧‧‧ relay inlet pipe

16‧‧‧ Equipment Control Unit

17‧‧‧ Equipment power storage unit

18‧‧‧The first pipeline group

181‧‧‧First Outflow Pipe

182‧‧‧First inlet pipe

19‧‧‧Second pipeline group

191‧‧‧Second Outlet Pipe

192‧‧‧Second inlet pipe

193‧‧‧equipment temperature control tube

2‧‧‧ Electric Vehicle

21‧‧‧ Vehicle Battery Module

22‧‧‧Power Storage Management Module

23‧‧‧ Vehicle Piping Unit

231‧‧‧ Vehicle inlet pipe

232‧‧‧ vehicle outlet pipe

233‧‧‧Vehicle temperature control tube

24‧‧‧ Vehicle Control Unit

25‧‧‧pipeline detection unit

26‧‧‧ Vehicle housing unit

3‧‧‧Refrigerant constant temperature storage device

8‧‧‧Refrigerant recovery device

9‧‧‧ Power System

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, wherein: FIG. 1 is a diagram of a first embodiment of a charging system for temperature control and rapid charging of a vehicle battery in accordance with the present invention; A schematic block diagram; and FIG. 2 is a block schematic diagram of a second embodiment of a charging system for temperature control and rapid charging of a vehicle battery in advance according to the present invention.

Claims (10)

A charging system for pre-controlling the temperature of a vehicle battery and then quickly charging includes: a charging device, including a device housing unit, a charging management unit for providing power, and a refrigerant cycle control unit electrically connected to the charging management unit A refrigerant circulation pipeline unit connected to the refrigerant circulation control unit, a composite pipeline unit provided in the equipment housing unit, and an equipment control unit electrically connecting the charge management unit and the refrigerant circulation control unit, the refrigerant circulation The pipeline unit has a first pipeline group, the first pipeline group has a first outlet pipe communicating with the refrigerant circulation control unit, the composite pipeline unit has a relay cable line electrically connected to the charge management unit, And a relay outlet pipe communicating with the first outlet pipe, the device control unit controls the refrigerant circulation control unit to send the refrigerant through the first outlet pipe, and then controls the charging management unit after a predetermined temperature adjustment time Power is sent through the relay cable; and an electric vehicle includes a vehicle housing unit and a vehicle battery module for storing power A power storage management module electrically connected to the vehicle battery module and capable of being electrically connected to the relay cable, a vehicle pipeline unit provided in the vehicle battery module, and an electrical connection to the power storage management A module and a vehicle control unit connected to the equipment control unit by a signal, the vehicle pipeline unit has a vehicle inlet pipe which can communicate with the relay outlet pipe, and a vehicle outside unit which communicates with the vehicle housing unit. A vehicle outlet tube and a vehicle temperature control tube connected between the vehicle inlet tube and the vehicle outlet tube and used to adjust the temperature of the vehicle battery module. The vehicle control unit controls The power storage management module sends the power stored in the vehicle battery module. The charging system for pre-controlling the temperature of the vehicle battery and quickly charging the battery according to claim 1, further comprising a refrigerant constant temperature storage device connected to the refrigerant circulation control unit and used to store and maintain the refrigerant in a refrigerant temperature range. The charging system for pre-controlling the temperature of the vehicle battery and quickly charging the vehicle as described in claim 2, further comprising a refrigerant recovery device connected to the vehicle outlet tube and the refrigerant constant temperature storage device. The refrigerant recovery device is used by the refrigerant recovery device. The carrier outlet tube recovers the refrigerant to the refrigerant constant temperature storage device. The charging system for temperature control and rapid charging of the vehicle battery according to claim 1, wherein the first pipeline group further includes a first inlet pipe communicating with the refrigerant circulation control unit, and the composite pipeline unit further It includes a relay inlet pipe communicating with the first inlet pipe, the carrier outlet pipe can communicate with the relay inlet pipe, and the equipment control unit also controls the refrigerant circulation control unit via the first inlet pipe Amount of refrigerant recovered. The charging system for temperature control and rapid charging of a vehicle battery according to claim 1, wherein the electric vehicle further includes a pipeline detection unit disposed on the vehicle pipeline unit and electrically connected to the vehicle control unit. The detection unit is used for detecting the flow condition of the refrigerant in the pipeline unit of the vehicle. The charging system for pre-controlling the temperature of the vehicle battery and quickly charging the battery as described in claim 5, wherein, if the pipeline detecting unit detects that the flow condition of the refrigerant in the vehicle pipeline unit is abnormal, the pipeline The detection unit notifies the vehicle control unit to control the power storage management module to stop sending power to the vehicle battery module. The charging system for pre-controlling the temperature of the vehicle battery and quickly charging the battery according to claim 1, wherein the charging device further includes a device power storage unit electrically connected to the charge management unit and used to store power. The charging system for temperature control and rapid charging of the vehicle battery according to claim 7, wherein the refrigerant circulation pipeline unit further includes a second pipeline group provided in the power storage unit of the equipment, and the second pipeline The road group has a second outlet pipe connected to the refrigerant circulation control unit, a second inlet pipe connected to the refrigerant circulation control unit, and a connection between the second outlet pipe and the second inlet pipe And a device temperature control tube for adjusting the temperature of the power storage unit of the device, the device control unit controls the amount of refrigerant sent by the refrigerant cycle control unit through the second outlet pipe and controls the refrigerant cycle control unit through the second inlet The amount of refrigerant recovered by the flow tube. The charging system for temperature control of the vehicle battery in advance and rapid charging according to claim 1, wherein the vehicle pipeline unit performs heat exchange with the vehicle battery module through a refrigerant to make the vehicle battery module The temperature is maintained within a set battery temperature interval. A charging device for pre-controlling the temperature of a vehicle battery and then quickly charging includes: a device housing unit; a charging management unit for providing power; a refrigerant circulation control unit electrically connected to the charging management unit; a refrigerant circulation tube The circuit unit is connected to the refrigerant circulation control unit and includes a first pipeline group. The first pipeline group has a first outlet pipe connected to the refrigerant circulation control unit. A composite pipeline unit is provided in the equipment casing. A body unit including a relay cable electrically connected to the charge management unit and a relay outlet pipe connected to the first outlet pipe; and a device control unit electrically connected to the charge management unit and the refrigerant cycle The control unit controls the refrigerant circulation control unit to send the refrigerant through the first outlet pipe, and then controls the charging management unit to send power through the relay cable after a predetermined temperature adjustment time.