Battery pack temperature control system, charging box, battery swap station and energy storage station

Abstract

The present invention relates to a battery pack temperature regulation system, a charging box, a battery swap station and an energy storage station. The battery pack temperature regulation system is used to regulate the temperature of a battery pack during charging in a battery swap station, and the battery pack temperature regulation system includes: a fluid circulation unit, the fluid circulation unit is arranged corresponding to the battery pack and is used to perform heat exchange with the battery pack; and a fluid supply unit, the fluid supply unit is connected to the fluid circulation unit and is used to provide fluid to the fluid circulation unit. The fluid provided by the fluid supply unit circulates in the fluid circulation unit and performs heat exchange with the battery pack, that is, the battery pack is heated or cooled so that the temperature of the battery pack is maintained within an appropriate range, thereby ensuring that the performance of the battery pack is in an optimal state.

Description

Technical Field

[0001] The present invention relates to the field of battery temperature control, and in particular to a battery pack temperature adjustment system, a charging box, a battery swap station and an energy storage station. Background Art

[0002] At present, automobile exhaust emissions are still an important factor in environmental pollution. In order to control automobile exhaust, people have developed natural cars, hydrogen fuel cars, solar cars and electric cars to replace fuel-powered cars. Among them, electric cars have the most promising application prospects. At present, electric cars mainly include direct charging and quick-change types.

[0003] Due to the limitations of charging time and location, many new energy electric vehicles are gradually adopting quick-swap mode (i.e., rapid battery replacement mode) for energy replenishment.

[0004] A battery swap station is a place for quick-swap electric vehicles to replace batteries. The depleted batteries replaced from electric vehicles need to be charged in a battery swap station or energy storage station. The battery pack is placed on the charging rack in the station for charging. In order to maintain the performance of the battery pack at its best, the temperature of the battery pack needs to be maintained within an appropriate range, generally 10-30 degrees Celsius. If the battery pack temperature is too high or too low, the performance of the battery pack will be reduced.

[0005] Factors that affect the temperature of the battery pack include: ambient temperature and the temperature rise of the battery pack itself due to heat generation during the charging process. If the ambient temperature is high, coupled with the heat generated by the battery pack itself during charging, if necessary cooling measures are not taken, the battery pack temperature will continue to rise and exceed 30 degrees Celsius, and even the local temperature may reach more than 100 degrees Celsius, with the risk of fire and explosion. If the ambient temperature is low, even if the battery pack itself generates heat, its temperature may still be below 10 degrees Celsius, which is not conducive to maintaining the performance of the battery pack and will shorten the battery pack life in the long run. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the prior art and eliminate the above-mentioned risks, and to provide a battery pack temperature regulation system, a charging box, a battery swap station and an energy storage station.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] A battery pack temperature regulation system is used to regulate the temperature of a battery pack during charging in a battery swap station or an energy storage station. The battery pack temperature regulation system comprises:

[0009] a fluid circulation unit, the fluid circulation unit being arranged corresponding to the battery pack and configured to perform heat exchange with the battery pack; and

[0010] A fluid supply unit is connected to the fluid circulation unit and is used to provide fluid to the fluid circulation unit.

[0011] In this solution, the fluid provided by the fluid supply unit circulates in the fluid circulation unit to perform heat exchange with the battery pack, that is, to heat or cool the battery pack so that the temperature of the battery pack is maintained within an appropriate range, thereby ensuring that the performance of the battery pack is in an optimal state.

[0012] Preferably, the battery swap station or the energy storage station has a plurality of charging compartments for charging the battery packs, and the fluid circulation unit is disposed at a corresponding position of the battery packs in the charging compartments.

[0013] Preferably, the fluid circulation unit is arranged on the upper surface or the lower surface of the battery pack in the charging compartment.

[0014] In this solution, the fluid circulation unit is in direct contact with the surface of the battery pack, so that the fluid and the battery pack can exchange heat more effectively.

[0015] Preferably, the fluid circulation unit comprises a circulation pipeline matching the size of the battery pack.

[0016] In this solution, the circulation pipeline is matched with the size of the battery pack, so that the contact area between the fluid circulation unit and the battery pack is maximized, thereby improving the efficiency of heat exchange with the battery pack.

[0017] Preferably, the charging bin has a bracket for carrying the battery pack, and the circulation pipeline is arranged on the bracket, so that when the battery pack is placed on the bracket, the circulation pipeline contacts the lower surface of the battery pack.

[0018] In this solution, the circulation pipeline is directly installed on the bracket, which does not take up extra space and saves internal space of the charging compartment, and can directly contact the battery pack to improve heat exchange efficiency.

[0019] Preferably, the fluid circulation unit is arranged above the battery pack in the charging compartment.

[0020] The charging compartment is also provided with a moving device, which is used to move the fluid circulation unit in the up and down directions so that the fluid circulation unit is close to the upper surface of the battery pack.

[0021] In this solution, in the initial state, the fluid circulation unit is not in contact with the battery pack and is in a distant state, which will not hinder the placement or removal of the battery pack or the natural heat dissipation. Only when the battery pack needs to be heat exchanged, the fluid circulation unit can be moved by a mobile device to be close to the upper surface of the battery pack, which is easy to adjust and control.

[0022] Preferably, the charging compartment is also provided with a fluid internal circulation plug-in interface, and the fluid internal circulation plug-in interface is used to connect with the battery pack liquid cooling interface.

[0023] Preferably, the fluid supply unit comprises a liquid storage device and a conveying device, and the conveying device is used to convey the fluid in the liquid storage device to the fluid circulation unit.

[0024] Preferably, the battery pack temperature regulation system further includes a heat exchange unit, wherein the heat exchange unit is disposed between the fluid circulation unit and the fluid supply unit and is used to regulate the temperature of the fluid flowing through the heat exchange unit.

[0025] Preferably, the heat exchange unit includes a refrigeration unit and / or a heating unit.

[0026] Preferably, the heat exchange unit is a refrigeration unit.

[0027] The battery pack temperature regulation system includes: a heat dissipation fan arranged close to the battery pack.

[0028] In this solution, a cooling fan is used to better dissipate heat from the battery pack.

[0029] Preferably, each charging compartment is provided with a charging unit, and the charging unit is used to provide direct current to the battery pack.

[0030] In this solution, the charging units and the battery packs are arranged in a one-to-one correspondence, which is more conducive to sufficient heat dissipation of the battery packs and the charging units compared to the arrangement in which the charging units centrally charge multiple battery packs.

[0031] A charging box comprises the battery pack temperature regulation system as described above.

[0032] A battery swap station includes the battery pack temperature regulation system as described above.

[0033] An energy storage station comprises the battery pack temperature regulation system as described above.

[0034] The positive and progressive effect of the present invention is that the battery pack temperature regulation system utilizes the fluid provided by the fluid supply unit to circulate in the fluid circulation unit to perform heat exchange with the battery pack, that is, to heat or cool the battery pack so that the temperature of the battery pack is maintained within an appropriate range, thereby ensuring that the performance of the battery pack is in the best state. Similarly, the charging box, battery swap station and energy storage station containing the battery pack temperature regulation system have the same effect as above. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure is a schematic diagram of the plan structure of a battery swap station according to an embodiment of the present invention.

[0036] Figure 2 Schematic diagram of the structure of a charging stand according to an embodiment of the present invention.

[0037] Figure 3 Schematic diagram of the module structure of a temperature control system according to an embodiment of the present invention.

[0038] Figure 4 It is a schematic diagram of the structure of a charging bin according to an embodiment of the present invention.

[0039] Figure 5 It is a schematic structural diagram of a charging bin according to another embodiment of the present invention.

[0040] Figure 6 It is a schematic structural diagram of a charging bin according to another embodiment of the present invention.

[0041] Figure 7 FIG. 1 is a schematic structural diagram of a connecting socket according to an embodiment of the present invention.

[0042] Description of reference numerals:

[0043] Battery Pack 300

[0044] Battery swap station 100

[0045] Fully functional container 110

[0046] Charging room 111

[0047] Battery swap platform 112

[0048] Monitoring Room 113

[0049] Charging container 120

[0050] Battery swap car 130

[0051] Palletizer 140

[0052] Track 150

[0053] Charging stand 160

[0054] Charging compartment 161

[0055] Charging unit 162

[0056] Battery pack temperature control system 200

[0057] Fluid circulation unit 210

[0058] Fluid supply unit 220

[0059] Liquid storage device 221

[0060] Conveying device 222

[0061] Heat exchange unit 230

[0062] Mobile unit 240

[0063] Connection socket 260

[0064] Fluid internal circulation plug-in interface 262 DETAILED DESCRIPTION

[0065] The present invention is further described below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the following embodiments.

[0066] Figure 1 According to an embodiment of the present invention, a battery swap station 100 is shown.

[0067] The battery swap station 100 is a container-type battery swap station 100. The battery swap station 100 includes: a full-function container 110 and a charging container 120 (charging box).

[0068] The full-function container 110 includes a charging room 111, a battery exchange 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 room 111 of the full-function container 110.

[0069] The charging room 111 of the full-function container 110 and the charging container 120 are provided with a charging rack 160. The monitoring room 113 is used to monitor the operation of the entire battery swap station. The battery swap platform 112 is used to swap batteries for vehicles.

[0070] The battery swap station 100 is also provided with a battery swap cart 130 and a palletizer 140. The battery swap cart 130 can move between the battery swap platform 112 and the charging chamber 111, and the movement is generally linear, and the movement direction is generally perpendicular to the movement direction of the palletizer 140. The palletizer 140 can move back and forth in the charging chamber 111 and the charging container 120 along the track 150 to be able to contact each charging rack 160.

[0071] The vehicle is docked on the battery exchange platform 112, and the battery exchange cart 130 moves between the battery exchange platform 112 and the charging chamber 111 in a direction perpendicular to the track 150 to remove the battery 300 to be charged from the vehicle and transport it to the palletizer 140, or receive the fully charged battery 300 from the palletizer 140 and transport and install it on the vehicle.

[0072] The palletizer 140 moves along the track 150 to move the batteries 300 to be charged to the various charging racks 160 in the charging chamber 111 for charging, or takes out fully charged batteries 300 from the various charging racks 160 in the charging chamber 111 and transfers them to the battery replacement cart 130.

[0073] The vehicle may be, for example, an SUV, a sedan, an off-road vehicle, a truck, a bus, or any other quick-change electric or hybrid vehicle.

[0074] Of course, the battery swap station 100 of the present invention may also be of other types and forms.

[0075] like Figure 2 As shown, the charging stand 160 includes a plurality of charging compartments 161 , and the charging compartments 161 are used to place the batteries 300 and charge the batteries 300 as needed.

[0076] A battery pack temperature regulation system 200 according to an embodiment of the present invention is applied to the charging room 111 and the charging container 120 of the battery swap station 100 .

[0077] The battery pack temperature regulation system 200 is used to regulate the temperature of the battery pack 300 during the charging process in the battery swap station 100 and the charging container 120 .

[0078] like Figure 3 As shown, the battery pack temperature regulation system 200 includes: a fluid circulation unit 210, which is arranged corresponding to the battery pack 300 and is used for heat exchange with the battery pack 300; and a fluid supply unit 220, which is connected to the fluid circulation unit 210 and is used to provide fluid to the fluid circulation unit 210.

[0079] The battery pack temperature regulation system utilizes the fluid provided by the fluid supply unit to circulate in the fluid circulation unit to perform heat exchange with the battery pack, that is, to heat or cool the battery pack to maintain the temperature of the battery pack within an appropriate range, thereby ensuring that the performance of the battery pack is in an optimal state.

[0080] The battery swap station 100 has a plurality of charging compartments 161 for charging the battery packs 300 , and the fluid circulation unit 210 is disposed at a position corresponding to the battery pack 300 in each charging compartment 161 .

[0081] like Figure 4 and 5 As shown, the fluid circulation unit 210 is disposed on the upper surface or the lower surface of the battery pack 300 in the charging compartment 161 .

[0082] Figure 4 An example in which the fluid circulation unit 210 is disposed on the upper surface of the battery pack 300 is shown. Figure 5 An example is shown in which the fluid circulation unit 210 is disposed on the lower surface of the battery pack 300. However, the present invention is not limited thereto, and the fluid circulation unit 210 may also be disposed on the upper surface or the lower surface of the battery pack 300 in other ways.

[0083] The fluid circulation unit 210 is disposed on the surface of the battery pack 300 and is in direct contact with the surface of the battery pack 300 , so that heat can be more effectively exchanged with the battery pack 300 .

[0084] Preferably, the fluid circulation unit 210 includes a circulation pipeline having a size matching that of the battery pack 300 .

[0085] In this way, the circulation pipeline covers the entire upper surface or lower surface of the battery pack 300, increasing the contact area and enabling more effective heat exchange with the battery pack 300.

[0086] The charging compartment 161 has a bracket for carrying the battery pack 300. When the fluid circulation unit 210 is disposed on the lower surface of the battery pack 300, the circulation pipeline is disposed on the bracket so that the battery pack 300 directly contacts the lower surface of the battery pack 300 when placed on the bracket. Of course, the fluid circulation unit 210 can also be a component disposed on the lower surface of the battery pack 300.

[0087] The circulation pipeline is directly arranged on the bracket, does not take up additional space, and saves the internal space of the charging compartment 161.

[0088] Figure 6 According to yet another embodiment of the present invention, an example in which the fluid circulation unit 210 is disposed above the battery pack 300 is illustrated.

[0089] like Figure 6 As shown, the fluid circulation unit 210 is arranged above the battery pack 300 in the charging compartment 161, and the charging compartment 161 is also provided with a moving device, which is used to move the fluid circulation unit 210 in the up and down direction so that the fluid circulation unit 210 is close to the upper surface of the battery pack 300. The moving device can be a device with a retractable arm or a wall that can move up and down and driven by one or more of a linear motor, a hydraulic motor, a rotary motor, etc. Of course, the moving device can also be in other forms.

[0090] In the initial state, the fluid circulation unit 210 is located above and does not contact the battery pack 300. When the battery pack 300 needs to be heat exchanged, the fluid circulation unit 210 is moved to the upper surface of the battery pack 300 by the moving device; when the battery pack 300 does not need to be heat exchanged, the fluid circulation unit 210 is moved back to the initial state by the moving device, that is, away from the battery pack 300, so as not to hinder the insertion and removal of the battery pack 300 or the natural heat dissipation.

[0091] The charging compartment 161 is also provided with a fluid internal circulation plug-in interface 262, which is used to connect to a liquid cooling interface built into the battery pack 300, and is suitable for a battery pack with a built-in liquid cooling circuit.

[0092] In this embodiment, if Figure 7As shown, the fluid internal circulation plug-in interface 262 is provided on the connection socket 260 and is integrated with the circuit connector. Alternatively, a separate fluid internal circulation plug-in interface 262 may also be provided in the charging compartment.

[0093] The fluid supply unit 220 includes a liquid storage device 221 and a delivery device 222 . The delivery device 222 is used to deliver the fluid in the liquid storage device 221 to the fluid circulation unit 210 .

[0094] The conveying device 222 can be a water pump such as a piston pump, a gear pump, a vane pump, a centrifugal pump, or an axial flow pump.

[0095] The battery pack temperature adjustment system 200 further includes a heat exchange unit 230 , which is disposed between the fluid circulation unit 210 and the fluid supply unit 220 and is used to adjust the temperature of the fluid flowing through the heat exchange unit 230 .

[0096] The heat exchange unit 230 includes a cooling unit and / or a heating unit.

[0097] When the heat exchange unit 230 includes both a cooling unit and a heating unit or only includes a cooling unit, the battery pack temperature adjustment system 200 includes: a heat dissipation fan arranged near the battery pack 300. The heat dissipation fan can be directly arranged in the charging compartment 161 or beside the battery rack.

[0098] The heat dissipation fan can be used to better dissipate heat from the battery pack 300.

[0099] A charging unit 162 is disposed in each charging compartment 161 . The charging unit 162 is used to provide the battery pack 300 with direct current required for charging.

[0100] This arrangement is more conducive to heat dissipation of the battery packs 300 and the charging unit 162 than an arrangement in which the charging unit 162 centrally charges a plurality of battery packs 300 .

[0101] The charging unit 162 includes a converter that converts external power into direct current. The charging unit 162 may also include other components such as a step-down device, a step-up device, and a cable.

[0102] The present invention further provides an energy storage station, which also includes a battery pack temperature regulation system. The battery pack temperature regulation system has the same structure as the battery pack temperature regulation system 200 described in the above embodiment, and will not be described in detail here.

[0103] The battery pack temperature regulation system utilizes the fluid provided by the fluid supply unit to circulate in the fluid circulation unit to perform heat exchange with the battery pack, that is, to heat or cool the battery pack so that the temperature of the battery pack is maintained within an appropriate range, thereby ensuring that the performance of the battery pack is in the best state. Similarly, the charging box, battery swap station and energy storage station containing the battery pack temperature regulation system have the same effects as above.

[0104] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the placement of the device or element when it is normally used, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction at all times, unless otherwise specified herein.

[0105] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A battery pack temperature adjustment system, used to adjust the temperature of a battery pack during charging in a battery swap station or energy storage station, characterized in that: The battery pack temperature regulation system comprises: a fluid circulation unit, the fluid circulation unit being arranged corresponding to the battery pack and configured to perform heat exchange with the battery pack; and a fluid supply unit, the fluid supply unit being in communication with the fluid circulation unit and being used for providing fluid to the fluid circulation unit; The battery swap station or the energy storage station has a plurality of charging compartments for charging the battery packs, and the fluid circulation unit is arranged at a corresponding position of the battery packs in the charging compartments; Each of the charging compartments is provided with a charging unit, and the charging unit is used to provide the battery pack with direct current required for charging; The fluid circulation unit is arranged between the upper surface of the battery pack in the charging compartment and the charging unit.

2. The battery pack temperature regulation system according to claim 1, characterized in that: The fluid circulation unit includes a circulation pipeline matched with the size of the battery pack.

3. The battery pack temperature regulation system according to claim 1, characterized in that: The fluid circulation unit is arranged above the battery pack in the charging compartment. The charging compartment is also provided with a moving device, which is used to move the fluid circulation unit in the up and down directions so that the fluid circulation unit is close to the upper surface of the battery pack.

4. The battery pack temperature regulation system according to claim 1, characterized in that: The charging compartment is also provided with a fluid internal circulation plug-in interface, and the fluid internal circulation plug-in interface is used to connect with the battery pack liquid cooling interface.

5. The battery pack temperature regulation system according to claim 1, characterized in that: The fluid supply unit comprises a liquid storage device and a conveying device, wherein the conveying device is used to convey the fluid in the liquid storage device to the fluid circulation unit.

6. The battery pack temperature regulation system according to claim 1, characterized in that: The battery pack temperature regulation system further includes a heat exchange unit, which is disposed between the fluid circulation unit and the fluid supply unit and is used to regulate the temperature of the fluid flowing through the heat exchange unit.

7. The battery pack temperature regulation system according to claim 6, characterized in that: The heat exchange unit includes a refrigeration unit and / or a heating unit.

8. The battery pack temperature regulation system according to claim 6, characterized in that: The heat exchange unit is a refrigeration unit, The battery pack temperature regulation system includes: a heat dissipation fan arranged close to the battery pack.

9. A charging box, characterized in that: It includes a battery pack temperature regulation system as described in any one of claims 1-8.

10. A battery swap station, characterized in that: It includes a battery pack temperature regulation system as described in any one of claims 1-8.

11. An energy storage station, characterized in that: It includes a battery pack temperature regulation system as described in any one of claims 1-8.

Images