Battery pack cooling device and charging station including same

Abstract

A battery pack cooling device according to an embodiment of the present invention includes a charging housing having an inlet, an outlet, and a pack insertion space into which a battery pack is inserted, a charging unit electrically connected to the battery pack inserted into the pack insertion space for charging the battery pack, a circulation unit provided to provide cooling water to the pack insertion space through the inlet and to collect the cooling water from the pack insertion space through the outlet, a heating unit provided to provide heat to the pack insertion space, and a control unit for controlling the charging unit, the heating unit, and the circulation unit.

Description

[Technical field]

[0001] The present invention relates to a battery pack cooling device and a charging station including the same, and more particularly to a shared battery pack cooling device and a charging station including the same that can improve charging efficiency of the battery pack by directly cooling the battery pack using a water-cooling method.

[0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2021-0187932 dated December 27, 2021, and all contents disclosed in the documents of that Korean patent application are incorporated herein by reference. [Background technology]

[0003] Due to global warming, carbon dioxide emissions are being limited. This has led to a gradual decline in the use of internal combustion engines that use fossil fuels, and they are being replaced by electric motors that do not emit carbon dioxide during operation.

[0004] The motor is powered by a battery installed on one side of the motor. The battery must be recharged when discharged, and the battery charging time is relatively long compared to the time it takes to replenish fossil fuels.

[0005] To solve these problems, a shared battery charging system was developed, in which users do not charge the batteries themselves, but instead pay only for the amount of electricity used by the battery pack charged at the charging station, and exchange it for the discharged battery on a 1:1 basis.

[0006] A shared battery charging device can improve the usability of batteries, but in order to realize this, it is necessary that a charged battery pack is always available at the charging station.

[0007] Therefore, it is necessary to increase the number of charging units in the shared battery charging apparatus that charge the battery packs, and to improve the charging efficiency of the battery packs during charging. Summary of the Invention [Problem to be solved by the invention]

[0008] An object of the present invention is to provide a battery pack cooling device capable of cooling a battery pack using a direct water-cooling method to improve charging efficiency of the battery pack, and a charging station including the same.

[0009] Another object of the present invention is to provide a battery pack cooling device and a charging station including the same, which can prevent loss of cooling water when replacing a battery pack by primarily recovering cooling water after charging of the battery pack is completed and then vaporizing the cooling water remaining in the battery pack and recovering it secondarily. [Means for solving the problem]

[0010] A battery pack cooling device according to an embodiment of the present invention includes a charging housing having an inlet, an outlet, and a pack insertion space into which a battery pack is inserted, a charging unit electrically connected to the battery pack inserted into the pack insertion space for charging the battery pack, a circulation unit provided to provide cooling water to the pack insertion space through the inlet and to collect the cooling water from the pack insertion space through the outlet, a heating unit provided to provide heat to the pack insertion space, and a control unit for controlling the charging unit, the heating unit, and the circulation unit.

[0011] In addition, the control unit may operate the circulation unit to provide the cooling water to the pack insertion space and collect the cooling water that has exchanged heat with the battery pack when the charging unit is operating with the battery pack inserted into the pack insertion space.

[0012] In addition, the control unit may be configured to stop operation of the circulation unit and operate the heating unit to supply the heat to the pack insertion space when the discharge of the heat-exchanged cooling water from the pack insertion space is completed.

[0013] The control unit may be configured to stop operation of the charging unit and then activate the heating unit when the battery pack is accommodated in the pack insertion space.

[0014] The heating unit can supply the heat so as to vaporize the cooling water remaining in the pack insertion space.

[0015] The circulation unit may also include a cooling water tank in which the cooling water is stored, a cooler that connects the inlet of the charging housing and the cooling water tank and is configured to cool the cooling water, and a pump that connects the outlet of the charging housing and the cooling water tank and recovers the cooling water from the pack insertion space via the outlet.

[0016] In addition, the control unit can control the circulation unit so that, during a charging operation of the charging unit, the cooling water from the cooling water tank passes through the cooler and then flows into the pack insertion space, and the cooling water that has exchanged heat with the battery pack while passing through the pack insertion space flows into the cooling water tank via the pump.

[0017] In addition, the control unit can control the circulation unit so that, when the heating unit is operating, vaporized particles of the cooling water are provided to the cooler via the pump, liquefied in the cooler, and then supplied to the cooling water tank.

[0018] In addition, the pump is connected to the cooling water tank and the cooler so as to be capable of moving fluid therethrough, and the control unit can control the circulation unit to cool the cooling water supplied from the cooling water tank through the cooler and then supply it to the inlet when the charging unit is in a charging operation.

[0019] In addition, the control unit can control the circulation unit to supply vaporized particles of the cooling water to the cooler via the pump when the heating unit is operating, liquefy the particles in the cooler, and then provide them to the cooling water tank.

[0020] The battery pack cooling device may further include a piping unit connecting the circulation unit and the charging housing.

[0021] The piping section may include a first pipe connecting the cooler and the cooling water tank, a second pipe connecting the cooler and the inlet of the charging housing, a third pipe connecting the outlet of the charging housing and the pump, a fourth pipe connecting the pump and the cooling water tank, and a fifth pipe connecting the pump and the cooler.

[0022] In addition, the battery pack cooling device may further include a first valve provided at the inlet of the charging housing and adjusting opening and closing of the inlet, a second valve provided at the outlet of the charging housing and adjusting opening and closing of the outlet, a third valve provided on the first piping, a fourth valve provided on the fourth piping, and a fifth valve provided on the fifth piping.

[0023] In addition, the control unit can control the circulation unit to open the first valve, the second valve, the third valve, and the fourth valve and close the fifth valve when the charging unit is operating to charge, so that the cooling water from the cooling water tank passes through the cooler and then flows into the pack insertion space, and the cooling water that has exchanged heat with the battery pack while passing through the pack insertion space flows into the cooling water tank via the pump.

[0024] In addition, the control unit can control the circulation unit to open the second valve, the third valve, and the fifth valve and close the first valve and the fourth valve when the heating unit is operating, and to provide vaporized particles of the cooling water to the cooler via the pump, liquefy in the cooler, and then supply to the cooling water tank.

[0025] In accordance with yet another aspect of the present invention, a charging station including a battery pack cooling device is provided. Effect of the Invention

[0026] The present invention can cool the battery pack using a direct water-cooling method, thereby improving the charging efficiency of the battery pack.

[0027] According to the present invention, after charging of the battery pack is completed, the coolant is primarily recovered from the charging housing, and the coolant remaining on the outer surface of the battery pack is vaporized and recovered secondarily, thereby making it possible to recover as much coolant that has been put into the charging housing as possible.

[0028] In addition, loss of cooling water can be prevented, and the maintenance costs of the cooling device of the shared battery pack can be reduced.

[0029] In addition, the present invention can completely remove moisture from the coolant in the battery pack through the coolant recovery process in the charging housing as described above, thereby preventing problems such as skin troubles caused by components present in the coolant. [Brief description of the drawings]

[0030] [Figure 1] 1 is a schematic diagram of a charging station to which a battery pack cooling device according to an embodiment of the present invention is applied; [Diagram 2] FIG. 2 is a schematic diagram illustrating an installation state of a battery pack inserted into a charging housing in an embodiment of the present invention; [Diagram 3]1 is a diagram illustrating a configuration of a battery pack cooling device according to an embodiment of the present invention; [Figure 4] 1 is a diagram illustrating a configuration of a battery pack cooling device according to an embodiment of the present invention; [Diagram 5] 1 is a diagram illustrating a configuration of a battery pack cooling device according to an embodiment of the present invention; [Figure 6] FIG. 2 is a schematic diagram illustrating one operating state of the battery pack cooling device when the battery pack is being charged in one embodiment of the present invention. [Figure 7] FIG. 2 is a schematic diagram illustrating one operating state of the battery pack cooling device after charging of the battery pack is completed in one embodiment of the present invention. [Figure 8] FIG. 2 is a schematic diagram illustrating one operating state of the battery pack cooling device after charging of the battery pack is completed in one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a battery pack cooling device and a charging station including the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0032] In addition, regardless of the drawing symbols, identical or corresponding components will be given the same or similar reference numbers, and duplicate descriptions thereof will be omitted. The size and shape of each component shown for convenience of explanation may be exaggerated or reduced.

[0033] FIG. 1 is a diagram that shows a charging station 10 to which a battery pack cooling device according to one embodiment of the present invention is applied, FIG. 2 is a diagram that shows a schematic installation state of a battery pack inserted into a charging housing in one embodiment of the present invention, and FIGS. 3 to 5 are diagrams that show schematic configuration diagrams of a battery pack cooling device according to one embodiment of the present invention.

[0034] FIG. 6 is a diagram illustrating an operating state of the battery pack cooling device during charging of the battery pack in one embodiment of the present invention, and FIGS. 7 and 8 are diagrams illustrating an operating state of the battery pack cooling device after charging of the battery pack is completed in one embodiment of the present invention.

[0035] In this specification, the cooling water W1 used in the direct water cooling method may be special cooling water W1 that has been insulated. For example, NOVEC (trademark) from 3M may be used as the special cooling water W1. The special cooling water W1, which is non-polar and corrosion resistant, has excellent performance as the cooling water W1 for the battery cells. However, the special cooling water W1 is expensive, and therefore requires a loss prevention structure.

[0036] 1, a battery pack cooling device 100 according to an embodiment of the present invention is applied to a charging station 10. The battery pack cooling device 100 is provided to cool the battery pack 110 by a direct water-cooling method when the battery pack 110 is being charged, and to collect the cooling water W1 from the battery pack 110 so that the cooling water W1 does not remain in the battery pack 110 after charging of the battery pack 110 is completed.

[0037] 1, a charging station 10 is a charging station for charging a battery pack 110. The charging station 10 includes a battery pack cooling device 100, a station box 11, and an operation unit 12.

[0038] Here, the operation unit 12 is provided outside the station box 11, and a user can operate the operation unit 12 to enable or disable charging of the battery pack 110. The shared battery pack cooling device 100 is provided in the station box 11.

[0039] The battery pack cooling device 100 according to an embodiment of the present invention includes a charging housing 120, a charging unit 130, a circulation unit 140, a heating unit 150, and a control unit 170. The battery pack cooling device 100 may also include a piping unit 160 that connects the circulation unit 140 and the charging housing 120.

[0040] 3 to 5, the battery pack cooling device 100 includes a charging housing 120 having an inlet 121, an outlet 122, and a pack insertion space 125 into which a battery pack 110 is inserted, a charging unit 130 electrically connected to the battery pack 110 inserted into the pack insertion space 125 for charging the battery pack 110, a circulation unit 140 configured to provide cooling water to the pack insertion space 125 through the inlet 121 and collect the cooling water in the pack insertion space through the outlet 122, a heating unit 150 configured to provide heat to the pack insertion space 125, and a control unit 170 for controlling the charging unit 130, the heating unit 150, and the circulation unit 140.

[0041] The battery pack 110 may include a plurality of battery cells (not shown) and has a charging connector 111 for connecting to the charging unit 130. The battery pack 110 is a known product, and a detailed description of the structure of the battery pack 110 will be omitted.

[0042] The charging station 10 may include multiple charging housings 120 for simultaneously charging multiple battery packs 110, respectively.

[0043] The charging unit 130 is provided in each charging housing 120. The charging unit 130 is electrically connected to the charging connector 111 of the battery pack 110 and applies a current to the battery pack 110 to charge the battery pack 110.

[0044] The charging housing 120 is provided in the station box 11. The charging housing 120 may have a cylindrical structure having a pack insertion space 125. Here, the pack insertion space 125 is a space into which the battery pack 110 is inserted.

[0045] 2, the charging housing 120 is provided with an inlet 121 and an outlet 122. The inlet 121 and the outlet 122 are provided to be capable of fluid movement with the pack insertion space 125. In this embodiment, the inlet 121 is an opening through which the cooling water W1 flows into the pack insertion space 125, and the outlet 122 is an opening through which the cooling water W1 is discharged from the pack insertion space 125.

[0046] 3, a first valve 121a is provided at the inlet 121. The first valve 121a is a valve that adjusts the opening and closing of the inlet 121. The first valve 121a opens the inlet 121 during charging operation of the charging unit 130, and allows the cooling water W1 to flow from the cooler 141 to the pack insertion space 125.

[0047] A second valve 122a is provided at the outlet 122. The second valve 122a is a valve that adjusts the opening and closing of the outlet 122. The second valve 122a opens the outlet 122 when the pump 143 is operating, and causes the cooling water W2 that has been subjected to heat exchange to flow from the pack insertion space 125 to the pump 143.

[0048] Charging housing 120 is connected to circulation section 140 by piping section 160. Piping section 160 includes first piping 161 to fifth piping 165.

[0049] First pipe 161 connects cooler 141 and cooling water tank 145, second pipe 162 connects cooler 141 and inlet 121 of the charging housing, third pipe 163 connects outlet 122 of charging housing 120 and pump 143, fourth pipe 164 connects pump 143 and cooling water tank 145, and fifth pipe 165 connects pump 143 and cooler 141. Meanwhile, first valve 121a may be provided on the second pipe, and second valve 122a may be provided on the third pipe 163.

[0050] The piping section 160 may include a third valve 161a provided on the first piping 161, a fourth valve 164a provided on the fourth piping 164, and a fifth valve 165a provided on the fifth piping 165. The control section 170 can adjust the opening and closing of each of the valves 121a, 122a, 163a, 164a, and 165a.

[0051] Charging housing 120 and circulation unit 140 are connected to each other so that coolant W1 can circulate. A heating unit 150 may be provided on the outer surface of charging housing 120. As an example, the heating unit 150 may be provided to apply heat to the pack insertion space 125 from outside the charging housing 120 .

[0052] Here, when the heat-exchanged coolant W2 is primarily discharged from the pack insertion space 125, the heating unit 150 provides heat to the pack insertion space 125 to vaporize the coolant W1 remaining in the pack insertion space 125.

[0053] The heating temperature of the heating unit 150 can be changed depending on the boiling point of the cooling water W1. As an example, a cooling liquid having a boiling point within a range of 30 degrees to 50 degrees can be used as the cooling water W1, and the heating unit 150 can heat the cooling water W1 to a temperature equal to or higher than the boiling point.

[0054] The circulation unit 140 is provided to provide cooling water W1 to the pack insertion space 125 during charging operation of the charging unit 130 and to collect cooling water W2 that has exchanged heat with the battery pack 110. The circulation unit 140 cools the battery pack 110 using a direct water-cooling method in which the cooling water directly contacts the battery pack 110 during charging of the battery pack 110.

[0055] The control unit 170 may operate the circulation unit 140 to provide cooling water to the pack insertion space 125 and collect the cooling water that has exchanged heat with the battery pack 110 when the charging unit is operating with the battery pack 110 inserted into the pack insertion space 125. The pack insertion space 125 has a volume larger than the volume of the battery pack 110, and with this structure, the coolant W1 flows in the space between the inner circumferential surface of the pack insertion space 125 and the outer circumferential surface of the battery pack 110.

[0056] In addition, when the discharge of the heat-exchanged coolant from the pack insertion space 125 is completed, the control unit 170 may stop the operation of the circulation unit 140 and operate the heating unit 150 to supply heat to the pack insertion space 125.

[0057] As described above, the control unit 170 may stop the operation of the charging unit 130 when the battery pack is accommodated in the pack insertion space 125, and then operate the heating unit 150.

[0058] The heating unit 150 supplies heat to vaporize the coolant remaining in the pack insertion space 125 (or the coolant remaining on the surface of the battery pack). The heating unit 150 may include one or more heaters, and each heater may be provided to be temperature adjustable.

[0059] The circulation unit 140 includes a cooler 141, a pump 143, and a cooling water tank 145. Here, the cooling water tank 145 stores cooling water W1. The cooling water tank 145 is connected to the cooler 141 and the pump 143.

[0060] In addition, a cooler 141 is provided to connect the inlet 121 of the charging housing 120 and the cooling water tank 145 and to cool the cooling water.

[0061] The pump 143 connects the outlet 122a of the charging housing 120 and the cooling water tank 145, and is provided to collect the cooling water in the pack insertion space 125 through the outlet 122a.

[0062] That is, the pump 143 applies pressure to suck and discharge the cooling water W1 in the pack insertion space 125. The pump 143 may be provided in one or more.

[0063] In addition, when multiple pumps 143 are provided, they can be divided into a primary recovery pump (which recovers cooling water when the charging unit is operating) and a secondary recovery pump (which recovers particles vaporized from the cooling water when the heating unit is operating) and used separately.

[0064] In such a structure, the primary recovery pump and the secondary recovery pump can be provided in parallel with the second pipe and the fifth pipe, respectively.

[0065] The cooler 141 may connect the inlet 121 of the charging housing to the cooling water tank 145 and may be provided to supply the cooling water supplied via the pump 143 back to the cooling water tank 145 .

[0066] Specifically, during charging operation of the charging unit 130, the cooler 141 is controlled to connect the cooling water tank 145 to the charging housing 120, and operates to cool the cooling water W1 supplied from the cooling water tank 145 and then provide it to the charging housing 120.

[0067] Referring to FIG. 6, when the charging unit 130 is in a charging operation, the control unit 170 can control the circulation unit so that the cooling water W1 flows from the cooling water tank 145 through the cooler 141 and then into the pack insertion space 125, and the cooling water W2 that has exchanged heat with the battery pack 110 while passing through the pack insertion space 125 flows into the cooling water tank 145 via the pump 143.

[0068] At this time, when charging unit 130 is in charging operation, control unit 170 can open first valve 121a, second valve 122a, third valve 161a and fourth valve 164a, and close fifth valve 165a.

[0069] At this time, the cooler 141 cools the cooling water W1 provided from the cooling water tank 145 and discharges it toward the inlet 121 .

[0070] Various types of coolers for cooling the cooling water W1 can be used as the cooler 141. For example, the cooler 141 can be implemented as a refrigerator for cooling the cooling water using a refrigerant.

[0071] When the heating unit 150 is operating, the cooler 141 can be controlled to connect the pump 143 and the cooling water tank 145 .

[0072] When the particles W3 of vaporized cooling water are provided from the pump 143, the cooler 141 operates to liquefy the particles and provide them to the cooling water tank 145.

[0073] As a result, the particles W3 resulting from the evaporation of the cooling water are liquefied while being cooled in the cooler 141, and are collected in the cooling water tank 145 in the form of cooling water W1.

[0074] That is, when the heating unit 150 is operated, the control unit 170 can control the circulation unit 140 so that particles W3 vaporized from the cooling water are provided to the cooler via the pump 143, liquefied in the cooler 141, and then supplied to the cooling water tank 145.

[0075] At this time, when the heating unit 150 is operating, the control unit 170 can open the second valve 122a, the third valve 161a, and the fifth valve 165a, and close the first valve 121a and the fourth valve 164a.

[0076] Meanwhile, the pump 143 is fluidly connected to the cooling water tank 145 and the cooler 141, respectively, and the pump 143 may be provided to selectively connect the charging housing 120 and the cooling water tank 145, or the charging housing 120 and the cooler 141.

[0077] The control unit 170 controls the circulation unit 140 to transfer the cooling water discharged from the charging housing 120 to the cooling water tank 145 when the charging unit 130 is in a charging operation.

[0078] That is, when the charging unit 130 is in a charging operation, the control unit 170 controls the circulation unit to cool the cooling water supplied from the cooling water tank 145 through the cooler 141 and then supply the cooling water to the inlet 121a.

[0079] When the heating unit 150 is operated, the pump 143 connects the charging housing and the cooler 141 and operates to provide particles W3 formed by vaporization of the cooling water discharged from the charging housing 120 to the cooler 141.

[0080] The control unit 170 can control the circulation unit to supply particles W vaporized from the cooling water to the cooler 141 via the pump 143 when the heating unit 150 is operating, liquefy the particles W in the cooler 141, and then provide the particles W to the cooling water tank 145.

[0081] Hereinafter, the operation of the circulation unit 140 and the heating unit 150 when the battery pack 110 is charged will be described.

[0082] First, the battery pack 110 is inserted into the pack insertion space 125 of the charging housing 120 , and the charging connector 111 of the battery pack 110 is electrically connected to the charging unit 130 .

[0083] 6, when the charging unit 130 is in a charging operation, the circulation unit 140 is operated. Specifically, the cooling water W1 flows from the cooling water tank 145 to the cooler 141 along the first pipe 161. The cooler 141 cools the cooling water W1 to a predetermined temperature. Then, the first valve 121a is operated to open the inlet 121.

[0084] The cooling water W1 cooled by the cooler 141 flows along the second pipe 162 to the inlet 121. The cooling water W1 flows into the pack insertion space 125 through the inlet 121.

[0085] The cooling water W1 can directly cool the battery pack 110 by a water-cooling method while exchanging heat with the battery pack 110 installed in the pack insertion space 125. That is, the cooling water W1 cools the heat Q generated from the battery pack 110.

[0086] When the pump 143 is operated, the cooling water W2 that has undergone heat exchange in the pack insertion space 125 is discharged to the third pipe 163 through the discharge port 122. At this time, the discharge port 122 is in an open state by the second valve 122a.

[0087] The cooling water W2 after the heat exchange flows along the third pipe 163 to the pump 143, and is discharged to the fourth pipe 164 via the pump 143. The cooling water W2 after the heat exchange flows along the fourth pipe 164 to the cooling water tank 145.

[0088] During the charging process of the battery pack 110, the circulation unit 140 operates to circulate the cooling water W1 through the cooling water tank 145, the cooler 141, the pack insertion space 125, and the pump 143 in sequence, and then back to the cooling water tank 145. As a result, the present invention can cool the battery pack 110 using a direct water-cooling method, thereby improving the charging efficiency of the battery pack 110.

[0089] Thereafter, when charging of the battery pack 110 is completed, the cooling water W1 is collected in the pack insertion space 125 (see FIG. 7). When the cooling water W1 is collected, the first valve 121a operates to close the inlet 121.

[0090] Then, the second valve 122a operates to open the outlet 122. When the pump 143 is operated, the cooling water W2 that has undergone heat exchange in the pack insertion space 125 is discharged to the third pipe 163 via the outlet 122. Then, the cooling water W2 flows via the pump 143 to the cooling water tank 145.

[0091] When the discharge of the cooling water W1 from the pack insertion space 125 is primarily completed, the heating unit 150 is operated.

[0092] 8, when the heating unit 150 is operated, heat Q is applied to the pack insertion space 125, and the cooling water remaining in the pack insertion space 125 is vaporized. Particles W3 of the vaporized cooling water are discharged to the third pipe 163 through the discharge port 122 when the pump 143 is operated.

[0093] The particles W3 of the vaporized cooling water flow to the cooler 141 via the pump 143. Specifically, the particles W3 of the vaporized cooling water are provided to the cooler 141 via the pack insertion space 125, the third pipe 163, the pump 143, and the fifth pipe 165 in this order.

[0094] The particles W3 of the evaporated cooling water are cooled and liquefied in the cooler 141. The cooling water W1 liquefied in the cooler 141 flows into the cooling water tank 145.

[0095] The present invention recovers the cooling water from the charging housing 120 primarily after charging of the battery pack 110 is completed, and recovers the cooling water remaining on the outer surface of the battery pack 110 by vaporizing it, thereby recovering as much of the cooling water introduced into the charging housing as possible. As a result, loss of the cooling water can be prevented, and the maintenance cost of the cooling device of the battery pack can be reduced.

[0096] Furthermore, the cooling water on the surface of the battery pack can be completely removed.

[0097] The above-described preferred embodiments of the present invention have been disclosed for illustrative purposes, and those skilled in the art having ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention, and such modifications, changes, and additions should be considered to fall within the scope of the following claims. [Industrial Applicability]

[0098] According to the present invention, after charging of the battery pack is completed, the coolant is primarily recovered from the charging housing, and the coolant remaining on the outer surface of the battery pack is vaporized and recovered secondarily, thereby maximizing the recovery of the coolant input into the charging housing. [Explanation of symbols]

[0099] W1 Special cooling water, cooling water W W2 Heat-exchanged cooling water W W3 Particles of evaporated cooling water 10. Charging Station 11 Station Box 12 Control section 100 Shared battery pack cooling device, battery pack cooling device 110 Battery Pack 111 Charging connector 120 Charging housing 121 Inlet 122 Outlet 125 pack insertion space 130 Live parts 140 Circulation section 141 Cooler 143 Pump 145 Cooling Water Tank 150 Heating section 160 Piping section 161 First Pipe 162 Second Pipe 163 Third Pipe 164 4th Pipe 165 5th Pipe 170 Control section

Claims

1. a charging housing having an inlet, an outlet, and a pack insertion space into which a battery pack is inserted; a charging unit electrically connected to the battery pack inserted into the pack insertion space and configured to charge the battery pack; a circulation unit configured to supply cooling water to the pack insertion space through the inlet and to collect the cooling water in the pack insertion space through the outlet; a heating unit configured to provide heat to the pack insertion space and evaporate the cooling water remaining in the pack insertion space; A control unit for controlling the charging unit, the heating unit, and the circulation unit; [0023] 3. A battery pack cooling system including:

2. 2. The battery pack cooling device of claim 1, wherein when the charging unit is operated with the battery pack inserted into the pack insertion space, the control unit operates the circulating unit to provide the cooling water to the pack insertion space and to collect the cooling water that has exchanged heat with the battery pack when the charging unit is operated with the battery pack inserted into the pack insertion space.

3. A charging housing having an inlet, an outlet, and a pack insertion space into which a battery pack is inserted; a charging unit electrically connected to the battery pack inserted into the pack insertion space and configured to charge the battery pack; a circulation unit configured to supply cooling water to the pack insertion space through the inlet and to collect the cooling water in the pack insertion space through the outlet; A heating unit configured to provide heat to the pack insertion space; A control unit for controlling the charging unit, the heating unit, and the circulation unit; Including, the control unit operates the circulation unit to provide the cooling water to the pack insertion space and collect the cooling water that has exchanged heat with the battery pack when the charging unit is operated with the battery pack inserted into the pack insertion space, The control unit stops operation of the circulating unit and operates the heating unit to supply the heat to the pack insertion space when the discharge of the heat-exchanged coolant from the pack insertion space is completed.

4. The battery pack cooling device according to claim 3 , wherein the control unit operates the heating unit after stopping the operation of the charging unit in a state where the battery pack is accommodated in the pack insertion space.

5. The battery pack cooling device according to claim 3 , wherein the heating unit supplies the heat so as to vaporize the cooling water remaining in the pack insertion space.

6. The circulation section includes: a cooling water tank in which the cooling water is stored; a cooler that connects the inlet of the charging housing and the cooling water tank and is configured to cool the cooling water; a pump that connects the outlet of the charging housing and the cooling water tank and recovers the cooling water in the pack insertion space through the outlet; 4. The battery pack cooling device of claim 3, comprising:

7. The control unit, during a charging operation of the charging unit, The cooling water from the cooling water tank passes through the cooler and then flows into the pack insertion space, 7. The battery pack cooling device according to claim 6, wherein the circulating unit is controlled so that the cooling water that has exchanged heat with the battery pack while passing through the pack insertion space flows into the cooling water tank via the pump.

8. 7. The battery pack cooling device of claim 6, wherein the control unit controls the circulation unit so that, when the heating unit is operated, vaporized particles of the cooling water are provided to the cooler via the pump, liquefied in the cooler, and then supplied to the cooling water tank.

9. the pump is fluidly coupled to the cooling water tank and the cooler, the control unit controls the circulation unit to cool the cooling water supplied from the cooling water tank through the cooler during a charging operation of the charging unit and then supply the cooling water to the inlet; 7. The battery pack cooling device according to claim 6, wherein the circulation unit is controlled so that, when the heating unit is operated, vaporized particles of the cooling water are supplied to the cooler via the pump, liquefied in the cooler, and then provided to the cooling water tank.

10. a piping section connecting the circulation section and the charging housing, The piping section includes: A first pipe connecting the cooler and the cooling water tank; a second pipe connecting the cooler and the inlet of the charging housing; a third pipe connecting the discharge port of the charging housing and the pump; a fourth pipe connecting the pump and the cooling water tank; A fifth pipe connecting the pump and the cooler; 7. The battery pack cooling apparatus of claim 6, comprising:

11. a first valve provided at the inlet of the charging housing and configured to adjust opening and closing of the inlet; a second valve provided at the outlet of the charging housing and configured to adjust opening and closing of the outlet; a third valve provided on the first pipe; a fourth valve provided on the fourth pipe; a fifth valve provided on the fifth pipe; The battery pack cooling apparatus of claim 10, further comprising:

12. the control unit opens the first valve, the second valve, the third valve, and the fourth valve and closes the fifth valve during a charging operation of the charging unit; The cooling water from the cooling water tank passes through the cooler and then flows into the pack insertion space, 12. The battery pack cooling device of claim 11, wherein the circulating unit is controlled so that the cooling water that has exchanged heat with the battery pack while passing through the pack insertion space flows into the cooling water tank via the pump.

13. the control unit opens the second valve, the third valve, and the fifth valve and closes the first valve and the fourth valve when the heating unit is operating; 12. The battery pack cooling device according to claim 11, wherein the circulation unit is controlled so that particles of the vaporized cooling water are provided to the cooler via the pump, liquefied in the cooler, and then supplied to the cooling water tank.

14. A charging station comprising the battery pack cooling device according to any one of claims 1 to 13.

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