CN215988942U

CN215988942U - Battery pack heating system, charging box, battery changing station and energy storage station

Info

Publication number: CN215988942U
Application number: CN202023230997.XU
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 heating system, a charging box, a battery changing station and an energy storage station. This battery package heating system is arranged in heating the battery package of the interior charging process in power conversion station or the energy storage station, and battery package heating system includes: 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 heating unit disposed between the fluid circulation unit and the fluid supply unit, for heating the fluid flowing through the heating unit. The battery pack heating system utilizes the fluid provided by the fluid supply unit to circulate in the fluid circulation unit and exchange heat with the battery pack, namely, the battery pack is heated to maintain the temperature of the battery pack in a proper range, so that the performance of the battery pack is ensured to be in an optimal state. The charging box, the battery changing station and the energy storage station have the same effect.

Description

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

The application claims priority of chinese utility model patent application CN2019224155799 entitled "battery pack heating system, charging box, battery replacement station and energy storage station", filed on application date 2019, 12 months and 26 days. 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 heating 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 low, the temperature of the battery pack may be still lower than 10 ℃ even if the battery pack itself generates heat, which is not favorable for maintaining the performance of the battery pack and leads to a shortened life of the battery pack for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of eliminating the risk and provides a battery pack heating 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 pack heating system for heating a battery pack during charging in a converter station or an energy storage station, the battery pack heating 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

and the heating unit is arranged between the fluid circulation unit and the fluid supply unit and is used for heating the fluid flowing through the heating 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.

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

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

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

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

The positive progress effects of the utility model are as follows: the battery pack heating system heats the battery pack by using the fluid for heating provided by the heating unit, so that the battery pack can be charged at a normal working temperature. The charging box, the battery replacement station and the energy storage station 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 heating system according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a charging bin 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

Charging bin 161

Charging module 162

Battery pack heating system 200

Fluid circulation unit 210

Fluid supply unit 220

Liquid storage device 221

Conveying device 222

Heating 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 charging bins 161, and the charging bins 161 are used for placing the battery packs 300 and charging the battery packs 300 as required.

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

As shown in fig. 3, the battery pack heating system 200 includes: a fluid circulation unit 210, the fluid circulation unit 210 being provided corresponding to the battery pack 300, for heat exchange with the battery pack 300; 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 heating unit 230, the heating unit 230 being disposed between the fluid circulation unit 210 and the fluid supply unit 220, for heating the fluid flowing through the heating unit 230.

The battery pack heating system performs heat exchange between the battery pack and the circulating flow of the fluid in the fluid circulating unit 210, thereby heating the battery pack to maintain the temperature of the battery pack within a normal operating temperature range, and ensuring that the performance of the battery pack is in an optimal state.

The charging station 100 has a plurality of charging chambers 161 for charging the battery packs 300, and the fluid circulation unit 210 is provided in each of the charging chambers 161 at a position corresponding to the battery pack 300.

As shown in fig. 4 and 5, the fluid circulation unit 210 is provided on the upper or lower surface of the battery pack 300 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 300, and fig. 5 illustrates an example in which the fluid circulation unit 210 is provided on the lower surface of the battery pack 300. 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 300 in other manners.

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

The fluid circulation unit 210 includes a circulation line sized to match the size of the battery pack 300.

Thus, the circulation pipe covers the entire upper or lower surface of the battery pack 300, increasing a contact area, and performing heat exchange with the battery pack 300 more effectively.

The charging chamber has a holder for holding the battery pack 300, and when the fluid circulation unit 210 is provided on the lower surface of the battery pack 300, a circulation line is provided on the holder so as to directly contact the lower surface of the battery pack 300 when the battery pack 300 is placed on the holder. 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 300 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 300 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-down direction such that the fluid circulation unit 210 abuts against the upper surface of the battery pack 300.

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 it is required to heat the battery pack 300, the fluid circulation unit 210 is moved to abut against the upper surface of the battery pack 300 by the moving means; when the heating of the battery pack 300 is not required, the fluid circulation unit 210 is reversely moved to the initial state, i.e., away from the battery pack 300, by the moving means so as not to hinder the insertion and extraction of the battery pack 300 or the natural heat dissipation.

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

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 in-fluid circulation plug interface 262 may also be provided in the charging chamber.

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 liquid having good thermal conductivity such as water, and the heat transfer effect is good.

In one embodiment, the heating unit 230 includes a heater for heating the liquid in the water tank, a water tank, and a heating pipe disposed in the water tank, in which the heating fluid is circulated. The heater may be an electric heating tube immersed in the water bath or an electric heating plate provided on the bottom and/or side of the hot water bath, or the like.

The heating unit 230 has a high temperature-raising efficiency, but the energy consumption may be large.

In another embodiment, the heating unit 230 includes a heat blower and a heat exchanger, the heat blower provides hot air to the heat exchanger, the heat exchanger includes a heating pipe and a fin sleeved on the heating pipe, and the heating pipe circulates the heating fluid.

The heating unit 230 has a simplified structure, and has fewer components and is easy to install and set.

In other embodiments, the heating unit 230 may further include a heat insulation box body and a heat exchanger, the heat insulation box body is provided with a radiator, the radiator is connected to the municipal heating system, the heat exchanger is disposed in the heat insulation box body, the heat exchanger includes a heating pipe and a fin sleeved on the heating pipe, and the heating pipe circulates the heating fluid.

This heating unit 230 utilizes municipal heating system's heating installation to heat, and the cost is lower, is applicable to the northern region that has municipal heating.

Each charging bin is provided with a charging unit for providing direct current required for charging the battery pack 300.

This arrangement makes it easier to dissipate heat of the charging unit 162 than if the charging unit 162 is placed centrally.

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 present invention further provides an energy storage station, which also includes a battery pack heating system, and the structure of the battery pack heating system is the same as that of the battery pack heating system 200 in the above embodiment, and is not described herein again.

The battery pack heating 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 heated to maintain the temperature of the battery pack within 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 heating system 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 pack heating system for heating a battery pack during charging in a converter station or an energy storage station, the battery pack heating system comprising:

2. The battery pack heating 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 heating 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 heating system of claim 3, wherein the fluid circulation unit comprises a circulation line sized to match the battery pack.

5. The battery pack heating system according to claim 4, wherein the charging chamber has a holder for holding the battery pack, and the circulation line is provided on the holder so that the circulation line contacts a lower surface of the battery pack when the battery pack is placed on the holder.

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

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

8. The battery pack heating system of claim 1, wherein the fluid supply unit comprises a reservoir and a delivery device for delivering fluid from the reservoir to the fluid circulation unit.

9. The battery pack heating system of claim 2, wherein each of said charging compartments has a charging unit disposed therein for providing direct current to said battery pack.

10. A charging box characterized in that it comprises a battery pack heating system according to any one of claims 1 to 9.

11. A power station comprising a battery pack heating system as claimed in any one of claims 1 to 9.

12. An energy storage station, characterized in that it comprises a battery pack heating system according to any one of claims 1-9.