Movable energy storage device

Abstract

The embodiment of the utility model provides a mobile energy storage device. The mobile energy storage device comprises an energy storage vehicle body, and the energy storage vehicle body comprises a battery cabin and a control cabin which are distributed along a second direction (X); the power supply assembly is mounted in the battery cabin, the power supply assembly comprises at least two battery racks, each battery rack comprises a battery cluster, and the battery cluster comprises a plurality of battery packs which are connected in series; the liquid cooling assembly and the air duct are arranged between the control cabin and the battery cabin, the liquid cooling assembly and the air duct are arranged in a stacked mode in the first direction (Z), the liquid cooling assembly is located at the bottom of the air duct, the liquid cooling assembly comprises a liquid cooling pipeline, and the liquid cooling pipeline is communicated with the interior of the power supply assembly and arranged on the peripheral side of the battery cluster in a surrounding mode. Thus, while the large-capacity energy storage requirement of the mobile energy storage device is met, heat dissipation can be conducted on the power supply assembly in time, then the overall energy supply efficiency of the mobile energy storage device is improved, and the service life of the mobile energy storage device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile energy storage device technical field, especially a kind of mobile energy storage device. BACKGROUND

[0002] Mobile energy storage device is mainly applied to rescue and relief, field exploration, engineering operation, handle emergency, night operation, army and military field operation vehicle, for user load to provide emergency power supply.Mobile energy storage device usually includes power distribution assembly, to meet the function demand of large capacity of mobile energy storage device, mobile energy storage device usually includes power distribution assembly including multiple battery clusters, and battery cluster once increases, it is difficult to heat dissipation for each battery cluster in time, and then the energy supply efficiency and service life of mobile energy storage device as a whole are influenced. SUMMARY

[0003] In order to solve or partially solve the above problems, the utility model discloses mobile energy storage device to solve the problem that it is difficult to heat dissipation for each battery cluster in time in prior art, and then the energy supply efficiency and service life of mobile energy storage device as a whole are influenced.

[0004] First, to solve the above problems, the utility model embodiment provides a kind of mobile energy storage device, and the mobile energy storage device has the first direction and the second direction that intersect each other;

[0005] Including:

[0006] Energy storage vehicle body, the energy storage vehicle body includes battery cabin and control cabin along the second direction distribution;

[0007] Power supply assembly, the power supply assembly is installed in the battery cabin, wherein the power supply assembly includes at least two battery racks, each battery rack includes battery cluster, and the battery cluster includes multiple series battery packs;

[0008] Liquid cooling assembly and air duct, the liquid cooling assembly and the air duct are arranged between the control cabin and the battery cabin, the liquid cooling assembly and the air duct are arranged along the first direction, and the liquid cooling assembly is located at the bottom of the air duct, the liquid cooling assembly includes liquid cooling pipeline, the liquid cooling pipeline is communicated to the power supply assembly, and is arranged around the side of the battery cluster.

[0009] Optionally, the mobile energy storage device further includes energy storage converter;

[0010] The energy storage converter and the battery cluster are installed in the battery rack along the first direction, and the energy storage converter is located at the bottom of the battery cluster in the first direction;

[0011] The battery rack is further provided with a first partition, the first partition is in a plane intersecting the first direction, the first partition divides the battery rack into a first installation cavity and a second installation cavity, the battery cluster is installed in the first installation cavity, and the energy storage converter is installed in the second installation cavity.

[0012] Optionally, the first partition has a box structure with a top opening, and the top opening of the first partition faces the battery cluster.

[0013] The first partition is further provided with a drain pipe, the drain pipe extends along the first direction, a pipe opening at one end of the drain pipe is located at the bottom of the box structure, and a pipe opening at the other end of the drain pipe is located at one side of the energy storage converter close to the bottom of the battery rack.

[0014] Optionally, the mobile energy storage device further comprises a master control box and a shunt box.

[0015] The master control box is electrically connected to the battery cluster, the master control box is arranged at the bottom of the battery cluster close to the first partition, the shunt box is arranged between the first partition and the master control box, and the shunt box is electrically connected to the master control box.

[0016] Optionally, the mobile energy storage device further comprises a charging assembly.

[0017] The shunt box comprises a first shunt end and a second shunt end, the first shunt end is electrically connected to the charging assembly, and the second shunt end is electrically connected to the energy storage converter.

[0018] Optionally, the battery rack is provided with a water baffle at a first position on a first side wall of the battery rack in the second direction, the first side wall is a side wall of the battery rack facing the air duct, and the first position is a position on the first side wall in the second direction and in a same straight line with the energy storage converter.

[0019] Optionally, the mobile energy storage device further comprises a power distribution cabinet.

[0020] The power distribution cabinet comprises a busbar, a selector, a backup power supply and a plurality of alternating current circuit breakers, the energy storage converter is electrically connected to the alternating current circuit breakers.

[0021] The busbar comprises a first output end and a second output end, the second output end is electrically connected to the charging assembly, the first output end is electrically connected to the selector, the selector is connected to the backup power supply, and the backup power supply is electrically connected to the charging assembly in the case of failure of the power supply assembly.

[0022] Optionally, the energy storage vehicle body further comprises a second partition.

[0023] The second partition is arranged at one end of the battery cabin away from the control cabin, the power distribution cabinet and the charging assembly are arranged at one side of the second partition away from the control cabin, and the power supply assembly is arranged at one side of the second partition close to the control cabin.

[0024] Optionally, the mobile energy storage device further comprises a fire-fighting assembly.

[0025] The fire-fighting assembly comprises a fire-fighting host, a fire-fighting line pipe, connecting hoses, fire-fighting nozzles and sensors, the sensors are electrically connected with the fire-fighting host, the fire-fighting host is connected with the fire-fighting line pipe, a plurality of the connecting hoses are connected on the fire-fighting line pipe, and the end of the connecting hose is connected with the fire-fighting nozzle.

[0026] The fire-fighting line pipe is arranged on the top of the battery cluster in the first direction.

[0027] Optionally, each connecting hose is connected with a plurality of fire-fighting nozzles, and the connecting hose is arranged around the circumferential side of the plurality of battery packs included in each battery cluster, and one fire-fighting nozzle is arranged corresponding to each battery pack.

[0028] In the embodiment of the utility model, since the power supply assembly comprises at least two battery racks, each battery rack comprises a battery cluster, and the battery cluster comprises a plurality of battery packs connected in series, the energy storage demand of the mobile energy storage device with large capacity can be met by the battery clusters included in the plurality of battery racks. Since the liquid cooling assembly and the air duct are arranged between the control cabin and the battery cabin, the liquid cooling assembly and the air duct are arranged in the first direction, the liquid cooling assembly is arranged at the bottom of the air duct, the liquid cooling assembly comprises a liquid cooling pipeline, the liquid cooling pipeline is communicated to the power supply assembly, and the liquid cooling pipeline is arranged around the circumferential side of the battery cluster, so that the air can be taken in from one side of the control cabin and taken out from the side away from the control cabin by the liquid cooling assembly, and each battery cluster can be cooled by liquid cooling. Since the cooling effect of liquid cooling is better than that of air cooling, the energy supply efficiency and service life of the mobile energy storage device can be improved while meeting the energy storage demand of the mobile energy storage device with large capacity. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1is a structural schematic view of a mobile energy storage device provided by the embodiment of the utility model;

[0031] Figure 2 is a structural schematic view of a mobile energy storage device provided by the embodiment of the utility model;

[0032] Figure 3 is a structural schematic view of a mobile energy storage device provided by the embodiment of the utility model;

[0033] Figure 4 is a structural schematic view of a mobile energy storage device provided by the embodiment of the utility model;

[0034] Figure 5 is a structural schematic view of a battery rack included in a mobile energy storage device provided by the embodiment of the utility model;

[0035] Figure 6 is a structural schematic view of a power distribution cabinet included in a mobile energy storage device provided by the embodiment of the utility model;

[0036] Figure 7 is a structural schematic view of a power distribution cabinet included in a mobile energy storage device provided by the embodiment of the utility model.

[0037] Mark explanation:

[0038] 1: energy storage vehicle body; 101: battery cabin; 102: control cabin; 103: second isolation piece; 2: power supply assembly; 21: battery rack; 211: water baffle cover; 22: battery cluster; 221: battery pack; 3: liquid cooling assembly; 31: liquid cooling pipeline; 4: air duct; 5: energy storage converter; 6: first isolation piece; 61: drain pipe; 7: main control box; 8: shunt box; 9: power distribution cabinet; 91: selector; 92: backup power supply; 93: AC circuit breaker; 10: charging assembly; 11: fire fighting assembly; 111: fire fighting host; 112: fire fighting line pipe; 113: connecting hose; 114: fire fighting nozzle; 115: sensor; 12: exhaust fan. Specific implementation

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0040] It should be appreciated that every instance where terms such as "one embodiment", "an embodiment", or the like, are recited herein are intended to mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrases "in one embodiment" or "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

[0041] As shown in the drawings, the utility model discloses a mobile energy storage device, the mobile energy storage device has the first direction Z and the second direction X that cross each other, Figures 1 to 7

[0042] Including:

[0043] Energy storage vehicle body 1, energy storage vehicle body 1 includes the battery cabin 101 and control cabin 102 along the second direction X distribution.

[0044] Power supply assembly 2, power supply assembly 2 is installed in battery cabin 101, wherein power supply assembly 2 includes at least two battery racks 21, each battery rack 21 includes battery cluster 22, and battery cluster 22 includes a plurality of series battery packs 221.

[0045] Liquid cooling assembly 3 and air duct 4, liquid cooling assembly 3 and air duct 4 are arranged between control cabin 102 and battery cabin 101, liquid cooling assembly 3 and air duct 4 are arranged in a stack along the first direction Z, and liquid cooling assembly 3 is located at the bottom of air duct 4, liquid cooling assembly 3 includes liquid cooling pipeline 31, liquid cooling pipeline 31 is communicated to the inside of power supply assembly 2, and is arranged around the circumferential side of battery cluster 22.

[0046] From the above embodiment can see, in the utility model embodiment, since power supply assembly 2 includes at least two battery racks 21, each battery rack 21 includes battery cluster 22, and battery cluster 22 includes a plurality of series battery packs 221, therefore can satisfy the large capacity energy storage demand of mobile energy storage device through the battery cluster 22 including multiple battery racks 21. Again since liquid cooling assembly 3 and air duct 4 are arranged between control cabin 102 and battery cabin 101, liquid cooling assembly 3 and air duct 4 are arranged in a stack along the first direction Z, and liquid cooling assembly 3 is located at the bottom of air duct 4, liquid cooling assembly 3 includes liquid cooling pipeline 31, liquid cooling pipeline 31 is communicated to the inside of power supply assembly 2, and is arranged around the circumferential side of battery cluster 22, therefore can make every battery cluster 22 can be liquid cooling heat dissipation through the air inlet from the side of control cabin 102 of liquid cooling assembly 3, and the air outlet from the side far from control cabin 102. In this way, since the heat dissipation effect of liquid cooling heat dissipation is better than that of air cooling heat dissipation, therefore can promptly heat dissipation to power supply assembly 2 while satisfying the large capacity energy storage demand of mobile energy storage device, and then improve the energy supply efficiency and service life of mobile energy storage device as a whole.

[0047] ​In the above embodiments, the control cabin is a cabin for controlling the movement of the energy storage vehicle body 1, which can be a driving cabin of the vehicle or a control cabin with a movement drive, and the embodiments of the utility model do not limit this. The battery rack 21 included in the power supply assembly 2 is a frame-shaped structure. In an exemplary embodiment, the battery rack 21 includes intersecting cross beams and longitudinal beams, the cross beams and longitudinal beams are overlapped to form a frame structure including a plurality of mounting frames, and the battery cluster 22 includes battery packs 221 installed in the mounting frames. One battery rack 21 can install one battery cluster 22, and one battery rack 21 can also install a plurality of battery clusters 22, and the embodiments of the utility model do not limit this. The number of battery clusters 22 included in the power supply assembly 2 can be an even number or an odd number, and the number of battery packs 221 included in each battery cluster 22 can also be an even number or an odd number. For example, the embodiments of the utility model can include four battery racks 21, each battery rack 21 fixes two battery clusters 22, each battery cluster 22 includes five battery packs 221, and the five battery packs 221 are stacked along the first direction Z.

[0048] The liquid cooling assembly 3 and the air duct 4 are arranged between the control cabin 102 and the battery cabin 101, the liquid cooling assembly 3 includes a cooling system, a liquid cooling machine, and cooling liquid, the cooling liquid circulates in the liquid cooling machine to take away the heat of the cooling system to realize heat exchange between the two. The air duct 4 is arranged at the top of the liquid cooling assembly 3 in the first direction Z, so that air can be introduced from one side of the control cabin 102 and discharged from the side far away from the control cabin 102, and each battery cluster 22 can be liquid-cooled and radiated.

[0049] It should be noted that in this embodiment, the liquid cooling pipe 31 is led out from the bottom of the liquid cooling assembly 3 in the first direction Z and then arranged around each battery pack 221. In one possible implementation, the liquid cooling pipe 31 can surround a plurality of annular frame structures, one annular frame structure surrounds one battery pack 221, the cooling liquid is injected into the water inlet of the battery pack 221 to realize heat exchange, and the cooling liquid after heat exchange flows out from the water outlet of the battery pack 221. In addition, it should be noted that the battery cabin 101 is also provided with a dehumidifier, the dehumidifier is fixed on the battery rack 21, and the dehumidifier condenses water in the air into water droplets and discharges them, so as to keep the humidity of the battery cabin 101 within a suitable range, thereby prolonging the service life of the power supply assembly 2 in the battery cabin 101.

[0050] It should be noted that according to Figure 2In the embodiment of the utility model, the X-axis direction and the Z-axis direction intersect, for the convenience of illustration, the first direction is defined as the Z-axis direction (that is, the direction intersecting the plane where the bottom of the battery cabin 101 is located), the second direction is defined as the X-axis direction, further, the definition of perpendicular in the specification should be understood as perpendicular within 10% of ninety degrees, that is, the included angle between the defined first direction and the second direction should be understood as perpendicular within eighty degrees to ninety degrees.

[0051] In some embodiments, the mobile energy storage device further comprises an energy storage converter 5; the energy storage converter 5 and the battery cluster 22 are installed in the battery rack 21 along the first direction Z, and the energy storage converter 5 is located at the bottom of the power supply assembly 2 in the first direction Z. The first isolation piece 6 is further arranged in the battery rack 21, the plane where the first isolation piece 6 is located intersects the first direction Z, the first isolation piece 6 divides the battery rack 21 into a first installation cavity and a second installation cavity, the battery cluster 22 is installed in the first installation cavity, and the energy storage converter 5 is installed in the second installation cavity.

[0052] In this embodiment, the energy storage converter 5 (PCS, Power Conversion System) is an electrical element that can control the charging and discharging process of the power supply assembly 2 and perform AC-DC conversion, and can directly power the AC load in the case of no power grid. The energy storage converter 5 includes a sequential converter, a control unit and the like, and the controller receives the background control instruction through communication, controls the converter to charge or discharge the battery according to the sign and size of the power instruction, and realizes the adjustment of the active power and the reactive power of the power grid. Since the heat dissipation amount of the energy storage converter 5 is less than the heat dissipation amount of the power supply assembly 2, the heat dissipation requirement of the energy storage converter 5 is less than the heat dissipation requirement of the power supply assembly 2, so that the protection level of the energy storage converter 5 is less than the protection level of the power supply assembly 2, in other words, the waterproof performance of the energy storage converter 5 is less than the waterproof performance of the power supply assembly 2. Based on this, in the embodiment of the utility model, the first isolation piece 6 is further arranged in the battery rack 21, the first isolation piece 6 divides the battery rack 21 into a first installation cavity and a second installation cavity, the battery cluster 22 is installed in the first installation cavity, and the energy storage converter 5 is installed in the second installation cavity, so that the condensed water in the heat dissipation process of the liquid cooling assembly 3 can be blocked by the first isolation piece 6 from entering the energy storage converter 5, thereby prolonging the service life of the energy storage converter 5.

[0053] It should be noted that one energy storage converter 5 is arranged for each battery cluster 22, so that multiple energy storage converters 5 are arranged in the battery cabin 101 in a scattered manner, thereby reducing the waterproofing difficulty of a single energy storage converter 5. When installing, a space for installing the energy storage converter 5 can be reserved at the bottom of the battery rack 21, so that the multiple battery packs 221 included in the battery cluster 22 and the energy storage converter 5 are arranged in a stacked manner along the first direction Z. The first isolation member 6 is arranged between the multiple battery packs 221 included in the battery cluster 22 and the energy storage converter 5, that is, the first isolation member 6 is arranged at the bottom of the multiple battery packs 221 included in the battery cluster 22, so that after the condensate is generated, the condensate can drip into the first isolation member 6 for collection due to gravity. In addition, the first isolation member 6 can include a bottom plate and a side plate, and the side plate and the bottom plate are connected to form a single-end opening cylinder structure, and the opening of the cylinder structure faces the battery cluster 22, so that the first isolation member 6 can have a certain amount of condensate collection. In addition, the first isolation member 6 can be a box structure, or a plate structure, or other structures with a containing cavity, and the embodiments of the present application do not limit this.

[0054] It should be further noted that since the condensate will continuously drip on the first isolation member 6, that is, the amount of condensate collected by the first isolation member 6 is limited, it is necessary to arrange a structure to discharge or collect the condensate collected at the first isolation member 6. The structure for discharging or collecting the condensate can be a drainage structure or a recycling structure. In one possible implementation manner, a water return pipe can be arranged on the first isolation member 6, the water return pipe is connected with the liquid cooling assembly 3, so that the condensate can flow back to the liquid cooling assembly 3, and then be circulated and cooled by the liquid cooling assembly 3.

[0055] In another possible implementation manner, the first isolation member 6 is a box structure with an opening at the top, and the opening at the top of the first isolation member 6 faces the battery cluster 22. The first isolation member 6 is further provided with a drain pipe 61, the drain pipe 61 extends along the first direction Z, one end of the drain pipe 61 is provided with a pipe opening at the bottom of the box structure, and the other end of the drain pipe 61 is provided with a pipe opening at one side of the energy storage converter 5 close to the bottom of the battery rack 21.

[0056] In this embodiment, since the drain pipe 61 extends along the first direction Z, one end of the drain pipe 61 is provided with a pipe opening at the bottom of the box structure, and the other end of the drain pipe 61 is provided with a pipe opening at one side of the energy storage converter 5 close to the bottom of the battery rack 21, so that the condensate collected in the first isolation member 6 can be discharged through the drain pipe 61, thereby avoiding the condensate collected in the first isolation member 6 from overflowing into the energy storage converter 5. It should be noted that, in order to save energy, a collection box can be arranged at the end of the drain pipe 61, the collection box is used to collect the condensate, so that the collected condensate can be reused to achieve the energy-saving effect.

[0057] In some embodiments, the mobile energy storage device further comprises a master control box 7 and a shunt box 8; the master control box 7 is electrically connected with the battery cluster 22, the master control box 7 is arranged at the bottom of the battery cluster 22 close to the first isolation member 6, the shunt box 8 is arranged between the first isolation member 6 and the master control box 7, and the shunt box 8 is electrically connected with the master control box 7.

[0058] In this embodiment, since the shunt box 8 is arranged between the first isolation member 6 and the master control box 7 and the shunt box 8 is electrically connected with the master control box 7, the shunt can be performed through the shunt box 8, and at the same time, the master control box 7 and the shunt box 8 which have heat dissipation requirements can also collect the condensed liquid generated after liquid cooling. It should be noted that the master control box 7 and the shunt box 8 are both high-protection-grade electrical elements, that is, the master control box 7 and the shunt box 8 have certain waterproof performance.

[0059] Further, the mobile energy storage device further comprises a charging assembly 10; the shunt box 8 comprises a first shunt end and a second shunt end, the first shunt end is electrically connected with the charging assembly 10, and the second shunt end is electrically connected with the energy storage converter 5.

[0060] In this embodiment, since the shunt box 8 comprises a first shunt end and a second shunt end, the first shunt end is electrically connected with the charging assembly 10, and the second shunt end is electrically connected with the energy storage converter 5, the charging assembly 10 can be directly powered through the first shunt end, and the electric energy can be transmitted to the energy storage converter 5 for power transformation through the second shunt end. It should be noted that the output through the first shunt end and the second shunt end is all direct current, that is, the power input to the charging assembly 10 is direct current, and the power input to the energy storage converter 5 is also direct current, so that the reasonable distribution of the electric energy generated by the power supply assembly 2 can be realized through the change of direct current to alternating current of the energy storage converter 5, so as to meet the power supply requirements of various scenes. In addition, the charging assembly 10 can comprise a direct current charging pile, a charging gun and a cable, the charging gun and the direct current charging pile are electrically connected through the cable, and thus the function of the mobile energy storage device moving for charging can be realized when the energy storage vehicle body 1 moves, so as to facilitate charging in different scenes.

[0061] In some embodiments, the battery rack 21 is provided with a water baffle 211 at a first position on the first side wall of the battery rack 21 in the second direction X, the first side wall is the side wall of the side of the battery rack 21 facing the air duct 4, and the first position is a position on the first side wall in the second direction X and in the same straight line with the energy storage converter 5.

[0062] In the embodiment, the first position is a position on the first side wall of the battery rack 21 in the second direction X and in line with the energy storage converter 5, and the first position is a position where an air inlet of the energy storage converter 5 is located. In order to prevent the condensed liquid from entering the energy storage converter 5 through the air inlet of the energy storage converter 5, a water baffle 211 is arranged at the first position on the first side wall of the battery rack 21 in the second direction X in the embodiment, and the water baffle 211 further prevents the condensed liquid from entering the energy storage converter 5, thereby prolonging the service life of the energy storage converter 5.

[0063] In some embodiments, the mobile energy storage device further comprises a power distribution cabinet 9; the power distribution cabinet 9 comprises a busbar, a selector 91, a backup power supply 92 and a plurality of AC circuit breakers 93, the energy storage converter 5 and the AC circuit breakers 93 are electrically connected; the busbar comprises a first output end and a second output end, wherein the second output end is electrically connected with the charging assembly 10, the first output end is electrically connected with the selector 91, the selector 91 is connected with the backup power supply 92, and the backup power supply 92 is electrically connected with the charging assembly 10 in the case of failure of the power supply assembly 2.

[0064] In the embodiment, the selector 91 is a kind of static transfer switch, which can realize automatic switching between two power supplies, and ensure that the charging assembly 10 is switched to the backup power supply 92 under uninterrupted power supply. Since the busbar comprises a first output end and a second output end, the first output end is electrically connected with the selector 91, and the second output end is electrically connected with the charging assembly 10, in the normal working state, if the first output end is in the normal voltage range, the charging assembly 10 can be connected to the first output end all the time, and once the power supply assembly 2 fails, the charging assembly 10 can be automatically switched to the circuit connected to the selector 91. An uninterruptible power supply and a backup power supply 92 can be connected to the selector 91, and once the power supply assembly 2 fails, the backup power supply 92 can be switched to continue power supply, and when the power supply assembly 2 returns to normal, the charging assembly 10 will automatically switch back to the power supply assembly 2. In summary, through the above embodiment, the charging function of the charging assembly 10 will not be interrupted due to the failure of the power supply assembly 2, thereby improving the continuous function efficiency of the mobile energy storage device.

[0065] In some embodiments, the energy storage vehicle body 1 further comprises a second partition 103; the second partition 103 is arranged at one end of the battery cabin 101 away from the control cabin 102, the power distribution cabinet 9 and the charging assembly 10 are arranged on one side of the second partition 103 away from the control cabin 102, and the power supply assembly 2 is arranged on one side of the second partition 103 close to the control cabin 102.

[0066] In this embodiment, since the second partition 103 is arranged at the end of the battery cabin 101 away from the control cabin 102, the power distribution cabinet 9 and the charging assembly 10 are arranged at the side of the second partition 103 away from the control cabin 102, and the power supply assembly 2 is arranged at the side of the second partition 103 close to the control cabin 102, so that the power supply assembly 2 and the charging assembly 10 can be isolated by the second partition 103, and thus the normal power supply of the power supply assembly 2 will not be affected when the charging assembly 10 is charging, so as to improve the sustainable power supply capability of the mobile energy storage device. The second partition 103 can be a baffle structure in a plate structure, so that the power supply assembly 2 and the charging assembly 10 are in two relatively independent spaces in the battery cabin 101.

[0067] In some embodiments, the mobile energy storage device further comprises a fire-fighting assembly 11; the fire-fighting assembly 11 comprises a fire-fighting host 111, a fire-fighting pipe 112, a plurality of connecting hoses 113, a connecting hose 114, and a sensor 115, the sensor 115 is electrically connected with the fire-fighting host 111, the fire-fighting host 111 is connected with the fire-fighting pipe 112, the plurality of connecting hoses 113 are connected on the fire-fighting pipe 112, and the end of the connecting hose 113 is connected with the connecting hose 114; wherein the fire-fighting pipe 112 is arranged on the top of the battery cluster 22 in the first direction Z.

[0068] In this embodiment, since the fire-fighting assembly 11 comprises the fire-fighting host 111, the fire-fighting pipe 112, the plurality of connecting hoses 113, the connecting hose 114, and the sensor 115, the sensor 115 is electrically connected with the fire-fighting host 111, the fire-fighting host 111 is connected with the fire-fighting pipe 112, the plurality of connecting hoses 113 are connected on the fire-fighting pipe 112, and the end of the connecting hose 113 is connected with the connecting hose 114, so that when the power supply assembly 2 generates flammable gas, the fire-fighting host 111 can control the connecting hose 113 to deliver extinguishing agent such as perfluorohexone or carbon dioxide powder to the connecting hose 114 through the fire-fighting pipe 112, and thus the extinguishing of the flammable gas is completed, so as to improve the ability of the mobile energy storage device to deal with emergencies and improve the safety performance of the mobile energy storage device. Since the fire-fighting pipe 112 is arranged on the top of the battery cluster 22 in the first direction Z, the fire-fighting pipe 112 can be arranged away from the energy storage converter 5 at the bottom of the battery cluster 22, so as to save the safety space of the battery rack 21, reduce the disorder degree of the wire harness, and reduce the laying difficulty of the fire-fighting pipe 112.

[0069] In some embodiments, each connecting hose 113 is connected with a plurality of connecting hoses 114, and the connecting hose 113 is arranged around the periphery of each battery pack 221 included in each battery cluster 22, and one connecting hose 114 is arranged corresponding to each battery pack 221.

[0070] In the embodiment, since each connecting hose 113 connects multiple connecting hoses 114, the connecting hose 113 is arranged around the circumferential side of the multiple battery packs 221 included in each battery cluster 22, and each battery pack 221 is correspondingly provided with a connecting hose 114, so that each battery pack 221 can be timely treated by a connecting hose 114, so as to extinguish the combustible gas in the first time.

[0071] It should be noted that in the embodiment of the utility model, the exhaust fan 12 can be arranged to exhaust the combustible gas. The sensor 115 can include a combustible gas sensor 115, a smoke sensor 115, a temperature sensor 115 and the like, so as to monitor the combustible gas in the first time and treat the combustible gas in the first time.

[0072] As can be seen from the above embodiment, in the embodiment of the utility model, since the power supply assembly 2 includes at least two battery racks 21, each battery rack 21 includes a battery cluster 22, and the battery cluster 22 includes multiple battery packs 221 connected in series, so that the battery clusters 22 included in the multiple battery racks 21 can meet the large-capacity energy storage demand of the mobile energy storage device. Since the liquid cooling assembly 3 and the air duct 4 are arranged between the control cabin 102 and the battery cabin 101, the liquid cooling assembly 3 and the air duct 4 are arranged in the first direction Z, the liquid cooling assembly 3 is located at the bottom of the air duct 4, the liquid cooling assembly 3 includes a liquid cooling pipeline 31, the liquid cooling pipeline 31 is communicated to the power supply assembly 2, and the liquid cooling pipeline 31 is arranged around the circumferential side of the battery cluster 22, so that the liquid cooling assembly 3 can take in air from the side of the control cabin 102 and take out air from the side far away from the control cabin 102, and each battery cluster 22 can be liquid-cooled. In this way, since the liquid cooling has better cooling effect than the air cooling, the power supply assembly 2 can be cooled in time while meeting the large-capacity energy storage demand of the mobile energy storage device, thereby improving the energy supply efficiency and service life of the mobile energy storage device as a whole.

[0073] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0074] Although the preferred embodiments of the utility model have been described, those skilled in the art can make other changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0075] Finally, it needs to be pointed out that in this document, relational terms such as first and second and the like can merely be used to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between or among the entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0076] The above has carried on the detailed introduction to the utility model, the principle and implementation mode of the utility model have been set forth in this document by applying specific examples, the above embodiment explanation is only for helping understanding the method of the utility model and its core thought; simultaneously, for the general technical personnel of the field, according to the thought of the utility model, there will be changes in specific implementation mode and application range, and the above is described, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A mobile energy storage device, characterized in that: The mobile energy storage device has a first direction (Z) and a second direction (X) that intersect each other; include: An energy storage vehicle body (1), the energy storage vehicle body (1) comprising a battery compartment (101) and a control compartment (102) distributed along the second direction (X); A power supply assembly (2), the power supply assembly (2) being installed in the battery compartment (101), wherein the power supply assembly (2) comprises at least two battery racks (21), each battery rack (21) comprising a battery cluster (22), and the battery cluster (22) comprising a plurality of battery packs (221) connected in series; A liquid cooling assembly (3) and an air duct (4), wherein the liquid cooling assembly (3) and the air duct (4) are arranged between the control cabin (102) and the battery cabin (101), the liquid cooling assembly (3) and the air duct (4) are stacked along the first direction (Z), and the liquid cooling assembly (3) is located at the bottom of the air duct (4), the liquid cooling assembly (3) includes a liquid cooling pipe (31), the liquid cooling pipe (31) is connected to the power supply assembly (2), and is arranged around the battery cluster (22).

2. The mobile energy storage device according to claim 1, characterized in that The mobile energy storage device further includes an energy storage converter (5); The energy storage converter (5) and the battery cluster (22) are installed in the battery rack (21) along the first direction (Z), and the energy storage converter (5) is located at the bottom of the battery cluster (22) in the first direction (Z); A first isolating member (6) is further provided in the battery rack (21), wherein a plane on which the first isolating member (6) is located intersects the first direction (Z), and the first isolating member (6) divides the battery rack (21) into a first installation cavity and a second installation cavity, wherein the battery cluster (22) is installed in the first installation cavity, and the energy storage converter (5) is installed in the second installation cavity.

3. The mobile energy storage device according to claim 2, characterized in that: The first isolating member (6) has a box structure with an open top, and the top opening of the first isolating member (6) faces the battery cluster (22); The first isolating member (6) is further provided with a drainage pipe (61), the drainage pipe (61) extending along the first direction (Z), the pipe opening at one end of the drainage pipe (61) being located at the bottom of the box structure, and the pipe opening at the other end of the drainage pipe (61) being located on a side of the energy storage converter (5) close to the bottom of the battery rack (21).

4. The mobile energy storage device according to claim 2, characterized in that: The mobile energy storage device further includes a main control box (7) and a shunt box (8); The main control box (7) is electrically connected to the battery cluster (22), the main control box (7) is arranged at the bottom of the battery cluster (22) close to the first isolation member (6), the shunt box (8) is arranged between the first isolation member (6) and the main control box (7), and the shunt box (8) is electrically connected to the main control box (7).

5. The mobile energy storage device according to claim 4, characterized in that: The mobile energy storage device further includes a charging component (10); The shunt box (8) comprises a first shunt end and a second shunt end, the first shunt end is electrically connected to the charging assembly (10), and the second shunt end is electrically connected to the energy storage converter (5).

6. The mobile energy storage device according to claim 2, characterized in that: The battery rack (21) is provided with a water shield (211) at a first position on a first side wall in the second direction (X), the first side wall being the side wall of the battery rack (21) facing the air duct (4), and the first position being a position on the first side wall in the second direction (X) that is in the same straight line as the energy storage converter (5).

7. The mobile energy storage device according to claim 5, characterized in that: The mobile energy storage device also includes a power distribution cabinet (9); The power distribution cabinet (9) comprises a busbar, a selector (91), a backup power supply (92) and a plurality of AC circuit breakers, and the energy storage converter (5) is electrically connected to the AC circuit breakers; The busbar includes a first output end and a second output end, wherein the second output end is electrically connected to the charging component (10), the first output end is electrically connected to the selector (91), and the selector (91) is connected to the backup power supply (92). In the event of a failure of the power supply component (2), the backup power supply (92) is electrically connected to the charging component (10).

8. The mobile energy storage device according to claim 7, characterized in that: The energy storage vehicle body (1) further includes a second isolation member (103); The second isolating member (103) is arranged at one end of the battery compartment (101) away from the control compartment (102), the power distribution cabinet (9) and the charging assembly (10) are arranged on a side of the second isolating member (103) away from the control compartment (102), and the power supply assembly (2) is arranged on a side of the second isolating member (103) close to the control compartment (102).

9. The mobile energy storage device according to claim 1, characterized in that: The mobile energy storage device further includes a fire-fighting component (11); The firefighting assembly (11) comprises a firefighting main unit (111), a firefighting line pipe (112), a connecting hose (113), a firefighting nozzle (114) and a sensor (15); the sensor (15) is electrically connected to the firefighting main unit (111); the firefighting main unit (111) is connected to the firefighting line pipe (112); a plurality of connecting hoses (113) are connected to the firefighting line pipe (112); and the ends of the connecting hoses (113) are connected to the firefighting nozzle (114); The fire protection line pipe (112) is wound on the top of the battery cluster (22) in the first direction (Z).

10. The mobile energy storage device according to claim 9, characterized in that: Each of the connecting hoses (113) is connected to a plurality of fire nozzles (114). The connecting hoses (113) are arranged around the circumference of the plurality of battery packs (221) included in each of the battery clusters (22). Each of the battery packs (221) is provided with a corresponding fire nozzle (114).

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