CN215988917U

CN215988917U - Battery pack cooling system, charging box, battery changing station and energy storage station

Info

Publication number: CN215988917U
Application number: CN202023231998.6U
Authority: CN
Inventors: 张建平; 陆文成
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2019-12-26
Filing date: 2020-12-28
Publication date: 2022-03-08
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a battery pack cooling system, a charging box, a battery changing station and an energy storage station. This battery package cooling system is arranged in cooling to the battery package of charging process in power conversion station or the energy storage station, and battery package cooling system includes: a fluid circulation unit provided corresponding to the battery pack, for performing heat exchange with the battery pack; the fluid supply unit is communicated with the fluid circulation unit and is used for providing fluid for the fluid circulation unit; and a refrigerating unit provided between the fluid circulation unit and the fluid supply unit, for cooling the fluid flowing through the cooling unit. The fluid provided by the fluid supply unit circulates in the fluid circulation unit to exchange heat with the battery pack, namely, the battery pack is cooled to maintain the temperature of the battery pack within a proper range, so that the performance of the battery pack is ensured to be in an optimal state. The charging box, the battery replacement station and the energy storage station have the same effect.

Description

Battery pack cooling system, charging box, battery changing station and energy storage station

The application requires 26 days 12 months in 2019, and the utility model is named as the priority of the Chinese utility model patent application CN2019224155411 of 'battery pack cooling system, charging box, battery replacement station and energy storage station'. The present application refers to the above-mentioned chinese patent application in its entirety.

Technical Field

The utility model relates to the field of battery replacement of electric vehicles, in particular to a battery pack cooling system, a charging box, a battery replacement station and an energy storage station.

Background

At present, the emission of automobile exhaust is still an important factor of the problem of environmental pollution, and in order to treat the automobile exhaust, people develop natural automobiles, hydrogen fuel automobiles, solar automobiles and electric automobiles to replace fuel-oil automobiles. And among them, the most promising is the electric vehicle. The current electric automobile mainly comprises a direct charging type and a quick-change type.

Due to the limitation of charging time and places, many new energy electric automobiles gradually adopt a quick-change mode (namely, a mode of quickly changing batteries) for energy supply.

The battery replacement station is a place for replacing batteries of a quick-change electric automobile, a power-shortage battery replaced on the electric automobile needs to be charged in the battery replacement station or an energy storage station, and a battery pack is placed on a charging frame in the station for charging. In order to maintain the performance of the battery pack at an optimum state, it is necessary to maintain the temperature of the battery pack within a suitable range, generally 10 to 30 ℃. The battery pack temperature is too high or too low, which leads to the performance degradation of the battery pack.

Factors that affect the temperature of the battery pack are: the ambient temperature and the temperature rise of the battery pack itself due to heat generation during charging. If the ambient temperature is high, and the battery pack self-heats up when charging, if necessary cooling measures are not taken, the temperature of the battery pack is continuously increased to exceed 30 ℃, even the local temperature reaches more than 100 ℃, and the risk of fire and explosion exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of eliminating the risk and provides a battery pack cooling system, a charging box, a battery replacement station and an energy storage station.

The utility model solves the technical problems through the following technical scheme:

a battery package cooling system for cooling a battery package during charging in a power conversion station or an energy storage station, the battery package cooling system comprising:

the fluid circulation unit is arranged corresponding to the battery pack and used for exchanging heat with the battery pack;

the fluid supply unit is communicated with the fluid circulation unit and is used for providing fluid for the fluid circulation unit; and

a cooling unit disposed between the fluid circulation unit and the fluid supply unit, for cooling the fluid flowing through the cooling unit.

Preferably, the battery replacing station or the energy storage station is provided with a plurality of charging bins for charging the battery pack, and the fluid circulation unit is arranged at a corresponding position of the battery pack in the charging bins.

Preferably, the fluid circulation unit is disposed on an upper surface or a lower surface of the battery pack in the charging bin.

Preferably, the fluid circulation unit includes a circulation line sized to match the battery pack.

Preferably, the charging bin is provided with a bracket for bearing the battery pack, and the circulating pipeline is arranged on the bracket, so that when the battery pack is placed on the bracket, the circulating pipeline is in contact with the lower surface of the battery pack.

Preferably, the fluid circulation unit is arranged above the battery pack in the charging bin,

the charging bin is further provided with a moving unit for moving the fluid circulating unit in the up-down direction so that the fluid circulating unit abuts against the upper surface of the battery pack.

In this aspect, the fluid circulation unit is not in contact with the battery pack in the initial state, and is in a remote state, which does not hinder the insertion or removal of the battery pack or natural heat dissipation, and only when the battery pack needs to be cooled, the fluid circulation unit is moved by the moving device to be attached to the upper surface of the battery pack, which is easy to adjust and control.

Preferably, the charging bin is further provided with a fluid internal circulation plugging interface, and the fluid internal circulation plugging interface is used for being connected with the battery pack liquid cooling interface.

Preferably, the fluid supply unit comprises a reservoir and a delivery device for delivering the fluid in the reservoir to the fluid circulation unit.

Preferably, the battery pack cooling system further includes: and the heat radiation fan is arranged close to the battery pack.

In this scheme, realize dispelling the heat to the battery package better through cooling blower.

Preferably, each charging bin is internally provided with a fluid circulation unit, and the fluid circulation unit is used for providing direct current for the battery pack.

In this scheme, set up charging unit and battery package one-to-one, compare in the setting that charging unit concentrates on charging for a plurality of battery packages, more be favorable to the abundant heat dissipation of battery package and charging unit.

A charging box comprising a battery pack cooling system as described above.

A battery swapping station comprising a battery pack cooling system as described above.

An energy storage station comprising a battery pack cooling system as described above.

The positive progress effects of the utility model are as follows: the battery pack cooling system utilizes the heat exchange between the circulating flow of the fluid in the fluid circulating unit and the battery pack, so that the battery pack is cooled, the temperature of the battery pack is maintained in a normal working temperature range, and the performance of the battery pack is ensured to be in an optimal state. Similarly, the charging box, the battery changing station and the energy storage station comprising the battery pack cooling system have the same effects.

Drawings

Fig. 1 is a schematic plan structure diagram of a swapping station according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a charging stand according to an embodiment of the present invention.

Fig. 3 is a schematic block diagram of a battery pack cooling system according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a battery compartment according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a charging bin according to another embodiment of the present invention.

Fig. 6 is a schematic structural view of a charging bin according to yet another embodiment of the present invention.

Fig. 7 is a schematic structural view of a connection socket according to an embodiment of the present invention.

Description of reference numerals:

battery replacement station 100

Full-function container 110

Charging chamber 111

Battery changing platform 112

Monitoring room 113

Charging container 120

Battery changing trolley 130

Stacker 140

Track 150

Charging stand 160

Battery compartment 161

Charging module 162

Battery pack cooling system 200

Fluid circulation unit 210

Fluid supply unit 220

Liquid storage device 221

Conveying device 222

Refrigeration unit 230

Mobile unit 240

Connection socket 260

Fluid inner circulation plug interface 262

Battery pack 300

Detailed Description

The present invention is further illustrated by way of example and not by way of limitation in the scope of the following examples in connection with the accompanying drawings.

Fig. 1 shows a swapping station 100 according to an embodiment of the utility model.

The power exchanging station 100 is a container type power exchanging station 100. This power swapping station 100 includes: a full function container 110 and a charging container 120 (charging box).

The full-function container 110 includes: a charging room 111, a battery replacement platform 112 and a monitoring room 113. The charging container 120 is vertically connected to the full function container 110 and communicates with the charging chamber 111 of the full function container 110.

A charging rack 160 is provided in the charging chamber 111 and the charging container 120 of the full-function container 110. The monitoring room 113 is used for monitoring the operation of the whole power station. The battery swapping platform 112 is used for swapping batteries for vehicles.

The battery replacing station 100 is also provided with a battery replacing trolley 130 and a stacker 140. The swap trolley 130 can move between the swap platform 112 and the charging chamber 111, and the movement is generally a linear movement, and the movement direction of the swap trolley is generally perpendicular to the movement direction of the stacker 140. The palletizer 140 may move back and forth along the track 150 in the charging chamber 111 and the charging container 120 to enable access to each charging rack 160.

The vehicle rests on the swap platform 112, and the swap trolley 130 moves between the swap platform 112 and the charging chamber 111 in a direction perpendicular to the rails 150 to detach and transport the battery 300 to be charged from the vehicle to the stacker 140, or to receive a fully charged battery 300 from the stacker 140 and transport and mount it to the vehicle.

The stacker 140 moves along the rails 150, moves the batteries 300 to be charged onto the respective charging racks 160 in the charging room 111 for charging, or takes out the fully charged batteries 300 from the respective charging racks 160 in the charging room 111 and transfers them to the swap trolley 130.

The vehicle may be a variety of quick-change electric or hybrid vehicles such as an SUV, a car, an off-road vehicle, a truck, a bus, and the like.

Of course, the power swapping station 100 of the present invention may be of other types and forms.

As shown in fig. 2, the charging stand 160 includes a plurality of battery compartments 161, and the battery compartments 161 are used for placing the battery packs 300 and charging the battery packs 300 as needed.

The battery pack cooling system 200 according to an embodiment of the present invention is applied to the charging room 111 and the charging container 120 of the charging station 100.

The battery pack cooling system 200 is used to cool the battery pack 300 during charging in the converter station 100.

As shown in fig. 3, the battery pack cooling system 200 includes: a fluid circulation unit 210, the fluid circulation unit 210 being disposed corresponding to the battery pack for heat exchange with the battery pack; a fluid supply unit 220, the fluid supply unit 220 being in communication with the fluid circulation unit 210 for providing fluid to the fluid circulation unit 210; and a cooling unit 230, the cooling unit 230 being provided between the fluid circulation unit 210 and the fluid supply unit, for cooling the fluid flowing through the cooling unit.

The battery pack 300 is cooled by heat exchange with the battery pack 300 using the circulation flow of the fluid within the fluid circulation unit 210 such that the temperature of the battery pack 300 is maintained within a normal operating temperature range.

The battery replacement station has a plurality of charging chambers for charging the battery pack, and the fluid circulation unit 210 is disposed in each charging chamber 161 at a position corresponding to the battery pack.

As shown in fig. 4 and 5, the fluid circulation unit 210 is provided on the upper surface or the lower surface of the battery pack in the charging bin.

Fig. 4 illustrates an example in which the fluid circulation unit 210 is provided on the upper surface of the battery pack, and fig. 5 illustrates an example in which the fluid circulation unit 210 is provided on the lower surface of the battery pack. However, the present invention is not limited thereto, and the fluid circulation unit 210 may be disposed on the upper surface or the lower surface of the battery pack in other manners.

The fluid circulation unit 210 is provided on the surface of the battery pack, and is in direct contact with the surface of the battery pack 300 to more effectively cool the battery pack.

The fluid circulation unit 210 includes circulation tubing sized to match the battery pack.

Therefore, the circulating pipeline covers the whole upper surface or the whole lower surface of the battery pack, the contact area is increased, and heat exchange with the battery pack can be carried out more effectively.

The charging chamber has a support for supporting the battery pack, and when the fluid circulation unit 210 is disposed on the lower surface of the battery pack, the circulation line may be disposed on the support so that the battery pack is directly contacted with the lower surface of the battery pack when the battery pack is placed on the support. Of course, alternatively, the fluid circulation unit 210 may be a component additionally disposed on the lower surface of the battery pack 300.

The circulating pipeline is directly arranged on the support, so that additional space is not occupied, and the internal space of the charging bin is saved.

Fig. 6 illustrates an example in which the fluid circulation unit 210 is provided above the battery pack according to still another embodiment of the present invention.

As shown in fig. 6, the fluid circulation unit 210 is disposed above the battery pack in the charging chamber, and the charging chamber is further provided with a moving unit 240 for moving the fluid circulation unit 210 in the up-and-down direction such that the fluid circulation unit 210 abuts against the upper surface of the battery pack.

The moving unit 240 may be a device having a telescopic arm or a wall that can move up and down, driven by one or more of a linear motor, a hydraulic motor, a rotary motor, and the like. Of course, the mobile unit 240 may alternatively take other forms.

In the initial state, the fluid circulation unit 210 is located at the upper side without contacting the battery pack 300. When the temperature of the battery pack needs to be reduced, the fluid circulation unit 210 is moved to be close to the upper surface of the battery pack 300 by the moving device; when the temperature of the battery pack is not required to be lowered, the fluid circulation unit 210 is reversely moved to the initial state, i.e., away from the battery pack, by the moving device, so as to prevent the battery pack from being put in or taken out or naturally dissipating heat.

The charging bin is further provided with a fluid inner circulation plug interface 262, and the fluid inner circulation plug interface 262 is used for being connected with a liquid cooling interface arranged in the battery pack 300 and is suitable for the battery pack with a liquid cooling loop arranged in the battery pack.

In the present embodiment, as shown in fig. 7, the fluid internal circulation plug interface 262 is disposed on the connection socket 260 and integrated with the circuit connector. Alternatively, a separate fluidic inner circulation plug interface 262 may be provided in the battery compartment.

The fluid supply unit 220 includes a reservoir 221 and a delivery device 222, and the delivery device 222 is used for delivering the fluid in the reservoir 221 to the fluid circulation unit 210.

The delivery device 222 may be a water pump such as a piston pump, gear pump, vane pump, centrifugal pump, axial flow pump, or the like.

The fluid in the liquid storage device 221 is generally a coolant such as ethylene glycol, which has a good cooling effect, but the fluid is not limited to a liquid, and may be a fluid such as air as needed.

In one embodiment, the refrigeration unit 230 includes a heat sink including a cooling tube and fins sleeved on the cooling tube, and a fan facing the heat sink. And dissipating heat of the radiator by utilizing air cooling. The air cooling has lower energy consumption and simplified device.

In another embodiment, the refrigeration unit 230 includes an air conditioner refrigerator that supplies cooling water to the cooling water tank, a cooling water tank, and a cooling pipe disposed in the cooling water tank, and the fluid for cooling is circulated through the cooling pipe.

The refrigeration unit 230 has high refrigeration efficiency, but may consume a large amount of energy, and is suitable for regions with high environmental temperature, such as south China.

In another embodiment, the refrigeration unit 230 includes an air conditioner and a radiator, the air conditioner provides cold air for the radiator, and the radiator includes a cooling tube and fins sleeved on the cooling tube, and the fluid for cooling flows through the cooling tube.

Such a refrigerating unit 230 gives consideration to both refrigerating efficiency and energy consumption.

The cooling unit 230 may be disposed inside or outside the charging station, and the disposition position thereof is not limited, and may be disposed as needed.

The battery pack cooling system 200 further includes: and the heat radiation fan is arranged close to the battery pack.

The cooling fan can be directly arranged in the charging bin 161 or beside the battery rack.

The battery pack 300 is better cooled by the cooling fan.

Each charging bin is provided with a fluid circulation unit 210, and the fluid circulation unit 210 is used for providing direct current required by charging for the battery pack.

This arrangement facilitates heat dissipation of the battery pack 300 and the charging unit 162 more than the arrangement in which the charging unit 162 collectively charges the plurality of battery packs 300.

The charging unit 162 includes a converter that converts an external power source into a direct current. The charging unit 162 may also include a voltage reducer, a voltage booster, a bus cable, and other components.

The utility model further provides an energy storage station, which also comprises a battery pack cooling system, and the battery pack cooling system has the same structure as the battery pack cooling system 200 in the above embodiment, and is not described herein again.

The battery pack cooling system 200 removes heat from the fluid circulation unit 210 by using the cooling fluid supplied from the cooling unit 230, thereby enabling the battery pack 300 to be charged at a normal operating temperature. The charging container 120, the battery replacement station 100 and the energy storage station have the same effects.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated based on the position of a device or component in normal use, for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or component so referred to must have a particular orientation, be constructed and operated in a particular orientation at any time, unless otherwise specified herein.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims

1. A battery package cooling system for cooling a battery package during charging in a power conversion station or an energy storage station, the battery package cooling system comprising:

a refrigerating unit disposed between the fluid circulation unit and the fluid supply unit, for cooling the fluid flowing through the refrigerating unit.

2. The battery pack cooling system according to claim 1, wherein the battery replacing station or the energy storage station has a plurality of charging compartments for charging the battery pack, and the fluid circulation unit is provided at a corresponding position of the battery pack in the charging compartments.

3. The battery pack cooling system according to claim 2, wherein the fluid circulation unit is provided on an upper surface or a lower surface of the battery pack in the charging bin.

4. The battery pack cooling system of claim 3, wherein the fluid circulation unit comprises circulation tubing sized to match the battery pack.

5. The battery pack cooling system according to claim 4, wherein the charging bin has a bracket for carrying the battery pack, and the circulation line is provided on the bracket so that the circulation line contacts a lower surface of the battery pack when the battery pack is placed on the bracket.

6. The battery pack cooling system according to claim 2, wherein the fluid circulation unit is provided above the battery pack in the charging bin,

7. The battery pack cooling system of claim 2, wherein the charging bin is further provided with a fluid internal circulation plug interface for connecting with the battery pack liquid cooling interface.

8. The battery pack cooling system according to claim 1, wherein the fluid supply unit includes a reservoir and a delivery device for delivering the fluid in the reservoir to the fluid circulation unit.

9. The battery pack cooling system according to claim 1, further comprising: and the heat radiation fan is arranged close to the battery pack.

10. The battery pack cooling system of claim 2, wherein each charging bin includes a fluid circulation unit therein for providing dc power to the battery pack.

11. A charging box characterized in that it comprises a battery pack cooling system according to any one of claims 1 to 10.

12. A power conversion station comprising a battery pack cooling system as claimed in any one of claims 1 to 10.

13. An energy storage station, characterized in that it comprises a battery pack cooling system according to any one of claims 1-10.