Container energy storage system for electric automobile

Abstract

The invention discloses a container energy storage system for an electric automobile, and relates to the technical field of container energy storage systems, the container energy storage system comprises a box body, an outer box door and an inner box door which can be opened and closed are installed on the box body, an electrical cabinet installed in the box body is arranged between the outer box door and the inner box door, a hydraulic rod is fixed in the box body, and a hydraulic cylinder is arranged in the box body. And the output end of the hydraulic rod is fixed to a mounting frame, a cooling water tank is fixed to the rear side of the upper end face of the box body, and a battery pack is arranged in the mounting frame. According to the container energy storage system for the electric vehicle, the lifting motion of the battery cluster mounting frame serves as a trigger signal, when the temperature sensor monitors that the temperature of a certain battery cluster is too high, the controller only drives the hydraulic rod at the corresponding position to jack the mounting frame, and therefore the exclusive air cooling channel and water cooling circulation can be synchronously started; the precise heat dissipation effect of the battery pack at the corresponding position is achieved, huge energy waste caused by overall cooling of a traditional air conditioning system is effectively avoided, and the energy efficiency ratio of the system is remarkably increased.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of container energy storage systems, in particular to a container energy storage system for electric vehicles. BACKGROUND

[0002] With the rapid development of the electric vehicle industry, the container energy storage system as a key energy supplement infrastructure has been widely applied. Such a system usually densely arranges a large number of battery groups in a standard container to realize high energy density mobile energy storage. However, the battery continuously generates heat during charging and discharging, and efficient and timely dissipation of heat is a core challenge to ensure the safety, service life and performance of the system.

[0003] At present, the common heat dissipation scheme mainly relies on an air conditioner all-in-one machine installed in the container to cool the whole environment. Although this scheme is simple, it has obvious disadvantages. First, it provides uniform cooling for the whole box space and cannot intensively dissipate heat for the local battery cluster with active charging and discharging and large heat generation, resulting in uneven temperature in the system and the possibility that part of the battery is in a high-temperature state for a long time, accelerating the aging of the battery. Second, when only individual battery clusters need high-power heat dissipation, starting the whole air conditioning system will cause great energy waste and increase the energy consumption of the whole system. SUMMARY

[0004] The application aims to provide a container energy storage system for electric vehicles to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a container energy storage system for electric vehicles, comprising a box body, a closable outer box door and an inner box door are installed on the box body, an electrical cabinet is arranged between the outer box door and the inner box door and is installed in the box body, a hydraulic rod is fixed in the box body, the output end of the hydraulic rod is fixed with a mounting bracket, a cooling water tank is fixed to the rear side of the upper end face of the box body, and a battery group is arranged in the mounting bracket. An air cooling assembly is arranged in the mounting bracket to realize air cooling of the battery group in the mounting bracket. A water cooling assembly is arranged in the mounting bracket to realize water cooling of the battery group.

[0006] Preferably, an air conditioner all-in-one machine is fixed to the right side of the box body, and convex rings are uniformly fixed to the upper end face of the box body, and the convex rings and the mounting brackets are one-to-one corresponding. The air conditioner all-in-one machine can dissipate heat for the whole space in the box body.

[0007] Preferably, the mounting frame upper end is fixed with a ring, and the ring and the convex ring are in sliding connection, and the ring and the one end of the round rod are fixed with each other, and the other end of the round rod and the rain cover are fixed with each other, the rain cover and the convex ring are in nesting connection, the inside of the ring is fixed with a temperature sensor, and the rain cover can realize the rain-shielding effect, avoid rainwater from penetrating into the box, and the rain cover and the convex ring are in nesting sealing, so that the outside air can be prevented from entering the box.

[0008] Preferably, the inside of the mounting frame is fixed with a baffle at equal intervals, and the airflow channel is formed between the adjacent two baffles, and the airflow channel between the baffles can facilitate the airflow from bottom to top, thereby providing a basic guarantee for heat dissipation of the battery pack.

[0009] Preferably, the air-cooled assembly comprises an outer cover fixed on the lower end surface of the mounting frame, and the outer cover and the fixed cover are in sliding connection, and the fixed cover is fixed on the lower end surface of the box, and the sliding guide effect between the outer cover and the fixed cover can ensure the stability of the movement of the mounting frame.

[0010] Preferably, the fixed cover is connected with a plurality of baffles through bearings, the gears are fixed on the baffles in left-right symmetry, the gears are arranged in the fixed cover, the gears and the racks are in meshing transmission, the racks and the fixed cover are in sliding connection, the racks are fixed on the lower end surface of the mounting frame, and the rotation angle of the baffles is 0°-90°, the racks are moved by the movement of the mounting frame, and the transmission between the racks and the gears can provide a basic guarantee for the angle adjustment of the baffles, thereby providing a basic guarantee for the air-cooled heat dissipation of the device.

[0011] Preferably, the lower side of the baffle is provided with a desiccant filter layer fixed in the fixed cover, the lower side of the desiccant filter layer is provided with a horizontal plate fixed in the fixed cover, the double-shaft motor is fixed on the horizontal plate, one output end of the double-shaft motor is fixed with a fan blade, the other output end of the double-shaft motor is fixed with a brush plate, the brush plate is in sliding contact with the filter screen, and the filter screen is fixed on the box, through the above structure, the air can be dried to avoid corrosion of the electrical elements in the device caused by humid air, and the filter screen can realize the filtering effect to prevent foreign matters from entering the inside of the device.

[0012] Preferably, the water cooling assembly comprises heat exchange plates fixed on the partition strip at equal intervals, and the heat exchange plates are fixed with the battery pack, and water grooves are arranged in the heat exchange plates, and the water inlet end of the lowermost water groove is connected with a one-way water inlet valve through a pipe, the one-way water inlet valve is connected with a fixed cylinder fixed in the box, the fixed cylinder is connected with a water inlet pipe, and the water inlet pipe is connected with a variable frequency water pump installed on the cooling water tank through a pipe, and the water outlet end of the water groove in the uppermost heat exchange plate is connected with a water return pipe through a one-way water outlet valve, the water return pipe is connected with the cooling water tank, and the water grooves between adjacent two heat exchange plates are connected through pipes, and the above structure can provide basic guarantee for water cooling and heat dissipation of the battery pack.

[0013] Preferably, a sealing plug is arranged in the fixed cylinder, and the sealing plug is matched with the opening of the one-way water inlet valve to realize sealing, and the sealing plug is fixed on the slide rod, and the slide rod is connected with the fixed cylinder in a sliding mode, and the above structure can ensure automatic opening and closing of the water cooling position, so that local heat dissipation can be realized, and energy waste can be avoided.

[0014] Preferably, a piston is further fixed on the slide rod, and the piston is connected with the fixed cylinder in a sliding mode, and the lower end surface of the piston is higher than the through hole of the fixed cylinder and the water inlet pipe, one end of the slide rod is fixed with the connecting plate, and the other end of the connecting plate is fixed with the mounting bracket, and the height of the piston is limited, so that the local water cooling and heat dissipation can be ensured to be normally performed.

[0015] Compared with the prior art, the present application has the following advantages: 1. The container energy storage system for electric vehicles uses the lifting movement of the battery cluster mounting bracket as a trigger signal, when the temperature sensor detects that the temperature of a certain battery cluster is too high, the controller only drives the hydraulic rod to lift the mounting bracket, thereby synchronously opening the dedicated air cooling channel and water cooling cycle, realizing precise heat dissipation of the corresponding position battery pack, effectively avoiding the huge energy waste caused by the overall cooling of the traditional air conditioning system, and significantly improving the energy efficiency ratio of the system. 2. The container energy storage system for electric vehicles uses mechanical linkage to synchronously open the air cooling channel and water cooling cycle, that is, through the meshing of the rack and pinion, the horizontal baffle is automatically turned into a vertical state to open the air duct, and through the connecting plate and slide rod, the sealing plug is directly lifted to connect the cooling water circuit, the whole starting process of air cooling and water cooling does not need additional electric air valve or electromagnetic valve, the overall structure is simple and the reliability is extremely high, the possible faults of the electric control system are effectively avoided, and the system is particularly suitable for long-term stable work in harsh working conditions such as vibration and large temperature difference. 3. The containerized energy storage system used in this electric vehicle employs a triple cooling system consisting of air conditioning-based overall air cooling, triggered forced air cooling, and triggered liquid cooling. This ensures both overall heat dissipation within the container and precise cooling for localized temperatures. Furthermore, the air cooling components integrate dust removal from the filter and dehumidification from the desiccant filter layer, ensuring clean and dry air entering the battery pack and preventing safety hazards caused by condensation and dust accumulation. The liquid cooling system, through heat exchange plates in close contact with the battery pack, boasts high heat dissipation efficiency and operates in a closed loop, complementing the air cooling system to jointly address extreme high-heat conditions and ensure the battery remains within its optimal temperature window. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the front cross-section of the box body of the present invention; Figure 2 This is a three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 3 This is a rear-view perspective three-dimensional structural diagram of the mounting bracket of the present invention; Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the mounting frame and housing of the present invention; Figure 5 This is a bottom-view cross-sectional three-dimensional structural diagram of the air-cooled component of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the water-cooling component and mounting bracket of the present invention; Figure 7 This is a frontal cross-sectional three-dimensional structural diagram of the fixed cylinder of the present invention.

[0017] In the diagram: 1. Cabinet; 101. Outer door; 102. Inner door; 103. Electrical cabinet; 104. Integrated air conditioning unit; 105. Convex ring; 2. Hydraulic rod; 3. Mounting bracket; 301. Circular ring; 302. Circular rod; 303. Rain cover; 304. Temperature sensor; 305. Spacer; 4. Air-cooled assembly; 401. Outer cover; 402. Fixing cover; 403. Baffle; 404. Gear; 405. Rack; 406. 407. Desiccant filter layer; 408. Horizontal plate; 409. Dual-axis motor; 410. Fan blade; 411. Brush plate; 412. Filter screen; 5. Water cooling assembly; 501. Heat exchange plate; 502. Water tank; 503. One-way water inlet valve; 504. Fixed cylinder; 505. Sealing plug; 506. Slide rod; 507. Piston; 508. Connecting plate; 6. Water inlet pipe; 7. Variable frequency water pump; 8. Cooling water tank; 9. Water return pipe; 10. Battery pack. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-7 The present invention provides a technical solution: a container energy storage system for electric vehicles, including a container 1, an openable and closable outer door 101 and an inner door 102 installed on the container 1, an electrical cabinet 103 installed inside the container 1 between the outer door 101 and the inner door 102, a hydraulic rod 2 fixed inside the container 1, the output end of the hydraulic rod 2 being fixed to a mounting frame 3, a cooling water tank 8 fixed to the rear side of the upper end face of the container 1, and a battery pack 10 installed inside the mounting frame 3; The air-cooling component 4 is used to achieve air-cooling heat dissipation of the battery pack 10 within a single mounting bracket 3. The air-cooling component 4 is fixed on the lower side of the mounting bracket 3, and there is a one-to-one correspondence between the mounting bracket 3 and the air-cooling component 4. The water-cooling component 5 is used to achieve water-cooling heat dissipation of the battery pack 10. The water-cooling component 5 is fixed in the mounting bracket 3.

[0020] An integrated air conditioning unit 104 is fixed on the right side of the housing 1, and convex rings 105 are evenly fixed on the upper surface of the housing 1, with the convex rings 105 and the mounting bracket 3 being distributed in a one-to-one correspondence. When using a containerized energy storage system for electric vehicles, such as Figures 1-7 As shown, during the operation of the device, the air conditioning unit 104 can dissipate heat from the storage space of the battery pack 10 as a whole, thereby achieving the heat dissipation function of the battery pack 10. In conjunction with the temperature sensor 304, the temperature of the battery pack 10 can be monitored to ensure the normal operation of the battery pack 10. A circular ring 301 is fixed to the upper end of the mounting bracket 3, and the circular ring 301 is slidably connected to the convex ring 105. One end of the circular ring 301 is fixed to one end of the circular rod 302, while the other end of the circular rod 302 is fixed to the rain cover 303. The rain cover 303 and the convex ring 105 are nested together. A temperature sensor 304 is fixed to the inner side of the circular ring 301. Spacers 305 are evenly spaced on the inner side of the mounting bracket 3, and an airflow channel is formed between adjacent spacers 305. The air-cooled assembly 4 includes an outer cover 401 fixed to the lower end face of the mounting bracket 3, and the outer cover 401 is slidably connected to a fixed cover 402. The fixed cover 402 is fixed to the lower end face of the housing 1. Several baffles 403 are connected to the fixed cover 402 by bearings, and gears 404 are symmetrically fixed to the baffles 403. Furthermore, gear 404 is installed inside fixed cover 402, and gear 404 meshes with rack 405 to achieve transmission. Rack 405 and fixed cover 402 are slidably connected, and rack 405 is fixed to the lower end face of mounting bracket 3. The rotation angle of baffle 403 is 0°-90°. Below baffle 403, desiccant filter layer 406 is fixed inside fixed cover 402, and below desiccant filter layer 406, horizontal plate 407 is fixed inside fixed cover 402. Dual-axis motor 408 is fixed on horizontal plate 407. At the same time, one output end of dual-axis motor 408 is fixed with fan blade 409, and the other output end of dual-axis motor 408 is fixed to brush plate 410. Brush plate 410 contacts and slides with filter screen 411, and filter screen 411 is fixed on housing 1. During the operation of the battery pack 10, if the heat dissipation of the air conditioning unit 104 is insufficient to meet the heat dissipation requirements of the battery pack 10 on a certain mounting bracket 3, the temperature sensor 304 determines the position of the corresponding mounting bracket 3 and sends a feedback signal to the controller. At this time, the controller controls the hydraulic rod 2 below the corresponding mounting bracket 3 to extend, thereby causing the corresponding mounting bracket 3, the battery pack 10 on the mounting bracket 3, and the outer cover 401 to be moved upward by force. With the sliding guide action between the outer cover 401 and the fixed cover 402, the stability of the movement of the mounting bracket 3 can be ensured. When the mounting bracket 3 moves upward, the ring 301, the rod 302, and the rain cover 303 are moved upward simultaneously until the upper end face of the ring 301 is flush with the upper end face of the convex ring 105, thereby contacting the inner shielding action of the convex ring 105 to facilitate subsequent airflow. When the mounting bracket 3 moves upward, it synchronously drives the rack 405 to move upward. The meshing transmission between the rack 405 and the gear 404 causes the baffle 403 to rotate under force. When the upper surface of the ring 301 is flush with the upper surface of the convex ring 105, the baffle 403 rotates from a horizontal to a vertical position, thus blocking the opening inside the fixed cover 402 and facilitating airflow. Then, by starting the dual-axis motor 408, the fan blades 409 rotate, thereby drawing in external air to cool the battery pack 10 at the corresponding location. As the air flows under the action of the fan blades 409, firstly... The filter 411 can remove dust from the air. The air that has been dusted moves upward and comes into contact with the desiccant filter layer 406. The desiccant filter layer 406 can dry the air. The dried air enters the air channel formed by the spacer 305 through the fixed cover 402, the outer cover 401 and the lower opening of the mounting bracket 3. The air entering the air channel exchanges heat with the heat exchange plate 501 and the battery pack 10, thereby realizing the air cooling function of the battery pack 10. The air that has been heated is discharged outward through the upper opening of the mounting bracket 3 and the ring 301, thereby completing the secondary heat dissipation function of the battery pack 10 at the corresponding position. The water-cooling assembly 5 includes heat exchange plates 501 fixed at equal intervals on spacers 305, and a battery pack 10 fixed on the heat exchange plates 501. A water tank 502 is formed inside the heat exchange plates 501. The water inlet of the lowest water tank 502 is connected to a one-way inlet valve 503 via a conduit. The one-way inlet valve 503 is connected to a fixed cylinder 504 fixed inside the housing 1. The fixed cylinder 504 is connected to an inlet pipe 6, which is connected to a variable frequency water pump 7 installed on the cooling water tank 8 via a conduit. The water outlet of the water tank 502 inside the highest heat exchange plate 501 is connected to a return pipe 9 via a one-way outlet valve. The return pipe 9 is connected to the cooling water tank 8. Water tanks 502 between two adjacent heat exchange plates 501 are connected to each other via conduits; a sealing plug 505 is provided inside the fixed cylinder 504, and the sealing plug 505 cooperates with the opening of the one-way water inlet valve 503 at the lower end of the fixed cylinder 504 to achieve a seal, and the sealing plug 505 is fixed on the slide rod 506, while the slide rod 506 and the fixed cylinder 504 are slidably connected; a piston 507 is also fixed on the slide rod 506, and the piston 507 and the fixed cylinder 504 are slidably connected, and the lower end face of the piston 507 is higher than the through opening between the fixed cylinder 504 and the water inlet pipe 6; the slide rod 506 is fixed to one end of the connecting plate 508, and the other end of the connecting plate 508 is fixed to the mounting bracket 3; When the mounting bracket 3 moves under force, such as Figures 1-7As shown, the movement of the mounting bracket 3 can synchronously drive the connecting plate 508 to move. The connecting plate 508 causes the sliding rod 506 to move upward relative to the fixed cylinder 504. At this time, the sliding rod 506 can synchronously drive the piston 507 and the sealing plug 505 to move upward. When the sealing plug 505 separates from the opening of the one-way inlet valve 503 at the lower end of the fixed cylinder 504, the sealing effect is released. At this time, the variable frequency water pump 7 can transport the cooling water in the cooling water tank 8 to the inlet pipe 6. The cooling water entering the inlet pipe 6 passes through the unsealed one-way inlet valve 503 at the lower end of the fixed cylinder 504. The opening of 03 enters the water tank 502 inside the bottom heat exchange plate 501. Through the heat exchange between the cooling water and the heat exchange plate 501, the water cooling function of the battery pack 10 can be realized. The cooling water entering the water tank 502 inside the bottom heat exchange plate 501 enters the water tank 502 inside the top heat exchange plate 501 through the conduit, so that all battery packs 10 inside the mounting bracket 3 can be cooled synchronously. The cooling water flows back into the return water pipe 9 through the water tank 502 inside the top heat exchange plate 501 and the one-way outlet valve, and then flows back into the cooling water tank 8 through the return water pipe 9 for circulation. It should be noted that, due to the function of the one-way inlet valve 503 and the one-way outlet valve, the cooling water can be ensured to flow in one direction in the inlet pipe 6, the water tank 502 and the return pipe 9, thereby ensuring the normal operation of the device. Furthermore, by limiting the height of the lower end face of the piston 507, the opening of the one-way inlet valve 503 at the lower end of the fixed cylinder 504 at any position can be opened to ensure the uniform flow of cooling water, thereby ensuring the normal heat dissipation. In summary, by driving the mounting bracket 3 at the corresponding position, the air-cooling component 4 and the water-cooling component 5 at the corresponding position can be opened, thereby achieving the heat dissipation function of the battery pack 10 at the corresponding position. This allows for supplementary heat dissipation based on the local insufficient heat dissipation of the battery pack 10 inside the housing 1, ensuring the heat dissipation effect of the battery pack 10. Furthermore, through local compensation heat dissipation, targeted heat dissipation can be achieved, which can avoid energy waste and prevent problems such as excessive heat dissipation of the battery pack 10 in other positions.

[0021] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A containerized energy storage system for electric vehicles, comprising a container (1), wherein an openable and closable outer door (101) and an inner door (102) are installed on the container (1), and an electrical cabinet (103) installed inside the container (1) is disposed between the outer door (101) and the inner door (102), characterized in that: A hydraulic rod (2) is fixed inside the housing (1). The output end of the hydraulic rod (2) is fixed to the mounting frame (3). A cooling water tank (8) is fixed to the rear side of the upper end face of the housing (1). A battery pack (10) is installed inside the mounting frame (3). The air-cooling component (4) is used to realize the air-cooling heat dissipation of the battery pack (10) in a single mounting bracket (3). The air-cooling component (4) is fixed on the lower side of the mounting bracket (3). The mounting bracket (3) and the air-cooling component (4) are distributed in a one-to-one correspondence. A water-cooling component (5) is used to achieve water-cooled heat dissipation of the battery pack (10), and the water-cooling component (5) is fixed in the mounting bracket (3).

2. The containerized energy storage system for electric vehicles according to claim 1, characterized in that: An integrated air conditioning unit (104) is fixed on the right side of the housing (1), and a raised ring (105) is also evenly fixed on the upper surface of the housing (1), and the raised ring (105) and the mounting bracket (3) are distributed in a one-to-one correspondence.

3. A containerized energy storage system for electric vehicles according to claim 2, characterized in that: The mounting bracket (3) has a ring (301) fixed at its upper end, and the ring (301) and the convex ring (105) are slidably connected. The ring (301) and one end of the round rod (302) are fixed to each other, while the other end of the round rod (302) is fixed to the rain cover (303). The rain cover (303) and the convex ring (105) are nested together. A temperature sensor (304) is fixed inside the ring (301).

4. A containerized energy storage system for electric vehicles according to claim 3, characterized in that: The mounting bracket (3) has spacers (305) fixed at equal intervals on its inner side, and an airflow channel is formed between two adjacent spacers (305).

5. A containerized energy storage system for electric vehicles according to claim 1, characterized in that: The air-cooled assembly (4) includes an outer cover (401) fixed to the lower end face of the mounting bracket (3), and the outer cover (401) and the fixed cover (402) are slidably connected, and the fixed cover (402) is fixed to the lower end face of the housing (1).

6. A containerized energy storage system for electric vehicles according to claim 5, characterized in that: The fixed cover (402) is connected to a number of baffles (403) by bearings, and gears (404) are symmetrically fixed on the baffles (403). The gears (404) are set inside the fixed cover (402), and the gears (404) mesh with the rack (405) to realize transmission. The rack (405) is slidably connected to the fixed cover (402), and the rack (405) is fixed on the lower end face of the mounting bracket (3). The rotation angle of the baffle (403) is 0°-90°.

7. A containerized energy storage system for electric vehicles according to claim 6, characterized in that: Below the baffle (403) is a desiccant filter layer (406) fixed inside the fixed cover (402), and below the desiccant filter layer (406) is a horizontal plate (407) fixed inside the fixed cover (402), and a dual-axis motor (408) is fixed on the horizontal plate (407). At the same time, a fan blade (409) is fixed on one output end of the dual-axis motor (408), and the other output end of the dual-axis motor (408) is fixed to the brush plate (410). The brush plate (410) contacts and slides with the filter screen (411), while the filter screen (411) is fixed on the box body (1).

8. A containerized energy storage system for electric vehicles according to claim 1, characterized in that: The water-cooled assembly (5) includes heat exchange plates (501) fixed at equal intervals on the spacers (305), and a battery pack (10) is fixed on the heat exchange plates (501). A water tank (502) is provided inside the heat exchange plates (501), and the water inlet end of the lowest water tank (502) is connected to a one-way water inlet valve (503) through a conduit. The one-way water inlet valve (503) is connected to a fixed cylinder (504) fixed inside the housing (1), and the fixed cylinder is fixed to the water inlet. The cylinder (504) is connected to the water inlet pipe (6), and the water inlet pipe (6) is connected to the variable frequency water pump (7) installed on the cooling water tank (8) through a conduit. At the same time, the water outlet end of the water tank (502) inside the uppermost heat exchange plate (501) is connected to the return water pipe (9) through a one-way water outlet valve. The return water pipe (9) is connected to the cooling water tank (8), and the water tanks (502) between two adjacent heat exchange plates (501) are connected to each other through a conduit.

9. A containerized energy storage system for electric vehicles according to claim 8, characterized in that: The fixed cylinder (504) is provided with a sealing plug (505), and the sealing plug (505) is connected to the opening of the one-way water inlet valve (503) at the lower end of the fixed cylinder (504) to achieve a seal. The sealing plug (505) is fixed on the slide rod (506), and the slide rod (506) and the fixed cylinder (504) are slidably connected.

10. A containerized energy storage system for electric vehicles according to claim 9, characterized in that: A piston (507) is also fixed on the slide rod (506), and the piston (507) is slidably connected to the fixed cylinder (504). The lower end face of the piston (507) is higher than the through opening between the fixed cylinder (504) and the water inlet pipe (6). One end of the slide rod (506) is fixed to the connecting plate (508), and the other end of the connecting plate (508) is fixed to the mounting bracket (3).

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