Energy storage battery module box capable of automatic early-warning and ejection, and operation method therefor

Abstract

Disclosed in the present invention are an energy storage battery module box capable of automatic early-warning and ejection, and an operation method therefor. The structure comprises a battery cabinet, a battery module box main body, a battery management system, an early-warning and ejection apparatus, and a slide rail base, wherein the battery module box main body is slidably arranged in the battery cabinet by means of the slide rail base; and the early-warning and ejection apparatus is connected to the battery module box main body and the battery management system. In the present invention, the early-warning and ejection apparatus can detect an abnormality in the temperature of a battery, give an early-warning and eject a faulty battery module box out of the battery cabinet, such that the abnormal battery module box is no longer arranged close to normal battery module boxes, thereby enabling a fire-extinguishing coolant released by an existing fire-fighting system for an electrochemical energy storage system to be in full contact with the faulty battery module box, and thus improving the efficiency and effects of fire extinguishing and cooling; in addition, the faulty battery module is separated from the normal battery modules, such that thermal spreading can be effectively blocked, thereby realizing rapid disaster control in a targeted manner, and preventing thermal runaway from spreading between the battery modules.

Description

An energy storage battery module box capable of automatic early warning and ejection and a working method thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of electrochemical energy storage safety, in particular to an energy storage battery module box capable of automatic early warning and ejection and a working method thereof. BACKGROUND

[0002] Electrochemical energy storage is an important support for the construction of new power systems. However, fire and explosion accidents of electrochemical energy storage stations using lithium ion batteries as the medium occur from time to time, which seriously restricts the sustainable and healthy development thereof. The battery cabinet is a core component of the electrochemical energy storage system, and its subunit is the battery module box. Although lithium ion batteries have excellent performance, under the conditions of overheat, overcharge, short circuit and other abuses, thermal runaway will occur in the battery due to heat accumulation, and then fire and explosion accidents will be caused. Due to the limitation of energy density and space, the battery modules are arranged relatively closely, and the current battery management system cannot monitor the working state of the battery in real time. If the battery in the battery cabinet causes thermal runaway and causes a fire without timely fire extinguishing and cooling, the fire is easy to spread between the battery modules, the battery cabinets and even the energy storage containers, thereby causing large-scale fire and explosion accidents and causing great threat to personnel and property safety.

[0003] At present, the fire-fighting strategy of the electrochemical energy storage system still has deficiencies and defects: (1) When the battery temperature exceeds 50 DEG C, the existing battery management system cannot effectively cool the battery, and external cooling medium needs to be applied. (2) For thermal runaway propagation, the current main method is to install a heat insulation plate in the battery cluster to delay the heat spread of the module, but it is difficult to effectively block the heat spread. (3) The internal space of the energy storage station is small, the battery modules are arranged closely and the system is relatively sealed, so the fire extinguishing method in the traditional fire extinguishing strategy cannot penetrate into the battery module, the contact area between the fire extinguishing agent and the battery module box is small, and accurate point-to-point fire extinguishing cannot be achieved, so the fire extinguishing efficiency is low and the cooling effect is poor.

[0004] The existing energy storage station protection method and technology cannot completely guarantee the safe operation of the battery, and more effective and timely early warning and device cooperation are needed. Therefore, it is of great significance to develop a battery module box of a battery cabinet capable of automatic early warning and response and automatic ejection to ensure the safe operation of the energy storage system. SUMMARY

[0005] The present application is directed to the fire characteristics of electrochemical energy storage systems and the present stage of fire-fighting measures, and proposes an intelligent, practical and efficient battery module box, that is, the present battery module box can automatically pop out to the outside of the battery cabinet by monitoring the temperature anomaly of lithium ion batteries, realize the rapid disaster control of lithium ion battery fire in the early stage, improve the use efficiency of the existing fire-fighting system, and effectively control the heat spread, the technical scheme of the present application is as follows: An automatic early warning ejected energy storage battery module box, comprising a battery cabinet, a battery module box main body, a battery management system, a pre-warning ejection device and a slide rail base, the battery module box main body is slidably arranged in the battery cabinet through the slide rail base, and the pre-warning ejection device is connected with the battery module box main body and the battery management system respectively. Preferably, the pre-warning ejection device comprises a pre-warning control system and an ejection device, the ejection device comprises an outer shell and an inner shell arranged in the outer shell, a compression ejection rod is arranged in the inner shell, an ejection control system for controlling the ejection of the compression ejection rod is arranged in the outer shell, the ejection control system is connected with the pre-warning control system and the compression ejection rod respectively, and the battery management system is connected with the pre-warning control system.

[0006] Preferably, the compression ejection rod comprises a three-stage compression ejection rod and a primary ejection rod, the three-stage ejection rod comprises a primary ejection rod, a secondary ejection rod and a tertiary ejection rod connected in sequence, one end of the primary ejection rod is slidably arranged in the inner shell, the other end of the primary ejection rod is connected with the end of the tertiary ejection rod away from the tertiary ejection rod, and first and second ejection blocks are respectively arranged on the primary ejection rod and the primary ejection rod; the ejection control system comprises a first locking rod, a second locking rod, a trigger rod and a trigger control device for controlling the movement of the trigger rod, limit protrusions are arranged at the top of the first locking rod and the second locking rod, the bottom of the first locking rod and the second locking rod is connected with the bottom end of the outer shell through a supporting spring, the first locking rod and the second locking rod are connected through a connecting rod, a pressing groove is formed in the outer wall of the first locking rod, the inner bottom wall of the pressing groove is an upward inclined surface, the trigger rod is slidably arranged in the outer shell, and one end of the trigger rod is connected with the trigger control device; when the compression ejection rod is in a compressed state, the limit protrusions on the first locking rod and the second locking rod are located on one side of the first ejection block and the second ejection block respectively, the two limit protrusions limit the first ejection block and the second ejection block respectively, preventing the first ejection block and the second ejection block from moving, the supporting spring is in a natural state, and the end of the trigger rod away from the trigger control device is located outside the pressing groove; when the compression ejection rod is ejected, the supporting spring is in a compressed state, the limit protrusions are located below the first ejection block and the second ejection block, and the end of the trigger rod away from the trigger control device is located in the pressing groove.

[0007] Preferably, the trigger control device comprises an electromagnet, an iron positioner and a trigger spring, the trigger rod is slidably connected with the outer shell through a limiting ring, the electromagnet is fixed in the outer shell, the iron positioner is slidably installed in the outer shell, the iron positioner is located on the side of the electromagnet close to the trigger rod, the iron positioner is fixedly connected with the end of the trigger rod away from the pressing groove, one end of the trigger spring is fixedly connected with the limiting ring, and the other end of the trigger spring is fixedly connected with the iron positioner, and the electromagnet is connected with the early warning control system through the control box.

[0008] Preferably, the slide rail base comprises a three-stage slide rail and a base, the three-stage slide rail comprises a fixed rail, a middle rail and a movable rail, the fixed rail is fixed on the battery cabinet, the movable rail is fixed on the base, and the fixed rail and the movable rail are slidably connected through the middle rail, and the base is fixed at the bottom of the battery module box body.

[0009] Preferably, the compression ejection rod ejection end is fixedly connected with a push plate, and the push plate is located on the rear side of the base.

[0010] Preferably, the battery module box body rear side inner wall is provided with positive and negative electrode sockets, the positive and negative electrode sockets are provided with positive and negative electrode plugs, the positive and negative electrode plugs are fixedly connected with the battery cabinet through connecting wires, and the length direction of the connecting wires is parallel to the ejection direction of the battery module box body.

[0011] Preferably, the battery module box body is provided with a cooling fan.

[0012] A working method of an automatic early warning ejection energy storage battery module box comprises the following steps: when the early warning control system detects that the battery temperature is abnormal, the temperature signal is converted into an electric signal and transmitted to the control box, the current in the electromagnet is cut off by the single-chip microcomputer in the control box, the electromagnet loses magnetism, the iron positioner drives the trigger rod to move forward under the action of the trigger spring, the front end of the trigger rod extends into the pressing groove on the first locking rod, the end of the trigger rod interacts with the inclined surface of the bottom wall of the pressing groove to drive the first locking rod and the second locking rod to move downward at the same time, the first ejection block and the second ejection block lose the limitation, the primary ejection rod and the three-stage compression ejection rod are simultaneously stretched and ejected at the moment, the push plate pushes the base and the battery box to be ejected out of the battery cabinet.

[0013] The application has the following beneficial effects: when the battery is overheated, the early warning ejection device of the application can monitor the temperature anomaly and give an early warning, and eject the faulty battery module box out of the battery cabinet, so that the abnormal battery module box is no longer closely arranged with the normal battery module box, so that the existing fire extinguishing cooling agent of the electrochemical energy storage system can fully contact the faulty battery module box, improve the fire extinguishing cooling efficiency and effect, and at the same time, the faulty battery module is separated from the normal battery module, which can effectively block the heat spread and quickly control the disaster in a targeted manner, and prevent the heat runaway from spreading among the battery modules. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structural schematic view of the early warning ejection device of the application when it is started; Fig. 2 is a structural schematic view of the early warning ejection device of the application when it is not started; Fig. 3 is a structural schematic view of the positive and negative electrode sockets of the application; Fig. 4 is a structural schematic view of the internal structure of the early warning ejection device of the application when it is started; Fig. 5 is a structural schematic view of the internal structure of the early warning ejection device of the application when it is not started; and Fig. 6 is a structural schematic view of the faulty battery module box when it is ejected out of the battery cabinet.

[0015] In the figure, 1 is a battery module box body; 2 is a heat dissipation fan; 3 is a three-stage sliding rail; 31 is a fixed rail; 32 is a middle rail; 33 is a movable rail; 4 is an ejection device; 5 is a base; 6 is an early warning control system; 7 is a push plate; 8 is a positive and negative electrode socket; 9 is a positive and negative electrode plug; 10 is a connecting wire; 11 is an outer shell; 12 is an inner shell; 13 is a control box; 14 is an electromagnet; 15 is an iron positioner; 16 is a trigger rod; 17 is a trigger spring; 18 is a limiting ring; 191 is a first locking rod; 192 is a connecting rod; 193 is a second locking rod; 20 is a supporting spring; 21 is a limiting protrusion; 22 is a pressing groove; 23 is a primary ejection rod; 241 is a first ejection block; 242 is a second ejection block; 25 is a three-stage compressed ejection rod; 251 is a three-stage ejection rod; 252 is a two-stage ejection rod; 253 is a one-stage ejection rod; and 26 is a battery cabinet. DETAILED DESCRIPTION

[0016] In order to make the application clearer and more understandable, the application is further described in detail below in combination with the drawings and examples, and it should be understood that the given examples are only one of the implementation manners, and do not represent all the examples.

[0017] In this document, the terms "upper, lower, front, rear, inner, outer" and the like are established based on the positional relationship shown in the drawings, and according to the different drawings, the corresponding positional relationship may also change accordingly, therefore, it cannot be understood as an absolute limitation on the protection scope.

[0018] In combination with FIG. 1-FIG. 5, an automatic pre-warning ejection energy storage battery module box includes a battery cabinet 26, a battery module box body 1, a battery management system, a pre-warning ejection device, and a slide rail base, the battery module box body 1 is slidably arranged in the battery cabinet 26 through the slide rail base, and the pre-warning ejection device is connected with the battery module box body 1 and the battery management system respectively. The pre-warning ejection device includes a pre-warning control system 6 and an ejection device 4, the ejection device 4 includes an outer shell 11 and an inner shell 12 arranged in the outer shell 11, the inner shell 12 is located at the front side position in the outer shell 11, a compression ejection rod is arranged in the inner shell 12, the compression ejection rod includes a primary ejection rod 23 and a tertiary compression ejection rod 25, the tertiary ejection rod 251 includes a primary ejection rod 253, a secondary ejection rod 252 and a tertiary ejection rod 251 connected in sequence, one end of the primary ejection rod 23 is slidably arranged in the inner shell 12, the other end of the primary ejection rod 23 is connected with the end of the tertiary ejection rod 251 away from the tertiary ejection rod 251, and the primary ejection rod and the primary ejection rod 253 are respectively provided with a first ejection block 241 and a second ejection block 242; the outer shell 11 is provided with an ejection control system for controlling the ejection of the compression ejection rod, the ejection control system is connected with the pre-warning control system 6 and the compression ejection rod respectively, and the battery management system is connected with the pre-warning control system 6.

[0019] Specifically, the primary ejection rod 23 includes a first rod body, a ejection cylinder is fixed at the rear position of the outer shell 11, one end of the ejection cylinder is communicated with the inner shell 12, one end of the first rod body is slidably arranged in the ejection cylinder, the other end of the first rod body is connected with the tertiary compression ejection rod 25, the first ejection block 241 is located at the end of the first rod body close to the tertiary compression ejection rod 25, a first spring is sleeved on the outer wall of the first rod body, one end of the first spring is fixedly connected with the ejection cylinder, and the other end of the first spring is fixedly connected with the first ejection block 241. The tertiary ejection rod 251 and the secondary ejection rod 252 are both provided with accommodating grooves, the secondary ejection rod 252 is slidably arranged in the accommodating groove of the tertiary ejection rod 251, a second spring is arranged between the rear end of the secondary ejection rod 252 and the inner wall of the rear side of the tertiary ejection rod 251, and the primary ejection rod 253 is slidably arranged in the accommodating groove of the secondary ejection rod 252, a third spring is arranged between the rear end of the primary ejection rod 253 and the inner wall of the rear side of the secondary ejection rod 252.

[0020] Specifically, the ejection control system comprises a first locking rod 191, a second locking rod 193, a trigger rod 16 and a trigger control device for controlling the movement of the trigger rod 16, the first locking rod 191 and the second locking rod 193 are each provided with a limiting protrusion 21 at the top, the first locking rod 191 and the second locking rod 193 are each connected with the bottom end of the outer shell 11 through a supporting spring 20, the first locking rod 191 and the second locking rod 193 are connected through a connecting rod 192, the synchronous movement of the first locking rod 191 and the second locking rod 193 is ensured through the connecting rod 192, a pressing groove 22 is formed on the outer wall of the first locking rod 191, the inner bottom wall of the pressing groove 22 is an upward inclined surface, the trigger rod 16 is slidingly arranged in the outer shell 11, and one end of the trigger rod 16 is connected with the trigger control device; when the compression ejection rod is in a compressed state, the limiting protrusions 21 on the first locking rod 191 and the second locking rod 193 are located on one side of the first ejection block 241 and the second ejection block 242 respectively, specifically, the limiting protrusion 21 at the top of the first locking rod 191 is located on the front side of the first ejection block 241, the limiting protrusion 21 at the top of the second locking rod 193 is located on the front side of the second ejection block 242, the two limiting protrusions 21 limit the first ejection block 241 and the second ejection block 242 respectively, preventing the first ejection block 241 and the second ejection block 242 from moving, so that the three-stage compression ejection rod 25 and the primary ejection rod 23 are not ejected, at this time, the supporting spring 20 is in a natural state, and the end of the trigger rod 16 away from the trigger control device is located outside the pressing groove 22; when the compression ejection rod is ejected, the supporting spring 20 is in a compressed state, the limiting protrusions 21 are located below the first ejection block 241 and the second ejection block 242, and the end of the trigger rod 16 away from the trigger control device is located in the pressing groove 22. The trigger control device comprises an electromagnet 14, an iron positioning device 15 and a trigger spring 17, the trigger rod 16 is slidingly connected with the outer shell 11 through a limiting ring 18, the electromagnet 14 is fixed in the outer shell 11, the iron positioning device 15 is slidingly installed in the outer shell 11, the iron positioning device 15 is located on the side of the electromagnet 14 close to the trigger rod 16, the iron positioning device 15 is fixedly connected with the end of the trigger rod 16 away from the pressing groove 22, one end of the trigger spring 17 is fixedly connected with the limiting ring 18, and the other end of the trigger spring 17 is fixedly connected with the iron positioning device 15, and the electromagnet 14 is connected with the early warning control system 6 through a control box 13. A single-chip microcomputer is arranged in the control box 13, and the on-off of the electromagnet 14 is controlled through the single-chip microcomputer.

[0021] Specifically, the slide rail base comprises a three-stage slide rail 3 and a base 5, the three-stage slide rail 3 comprises a fixed rail 31, a middle rail 32 and a movable rail 33, the fixed rail 31 is fixed on the battery cabinet 26, the movable rail 33 is fixed on the base 5, the fixed rail 31 and the movable rail 33 are connected through the middle rail 32, and the base 5 is fixed on the bottom of the battery module box body 1. The battery module box body 1 is arranged on the slide rail base, so that the smoothness of the battery module box can be ensured, and the battery module box cannot be completely ejected due to the jamming in the ejection process. The battery module box body 1 is installed on the base 5, so that the flexibility of the battery module box installation can be improved, the battery module box can be installed and dismounted on the base 5, and the inconvenience of dismounting the battery module box in the case of being directly connected with the three-stage slide rail 3 is avoided.

[0022] Specifically, the compression ejection rod ejection end is fixedly connected with a push plate 7, and the push plate 7 is located at the rear side of the base 5. When being ejected, the base is pushed to slide along the three-stage slide rail 3 through the push plate 7, so that the battery module box on the base 5 is ejected.

[0023] Specifically, a positive and negative electrode socket 8 is arranged on the inner wall at the rear side of the battery module box body 1, a positive and negative electrode plug 9 is inserted into the positive and negative electrode socket 8, the positive and negative electrode plug 9 is fixedly connected with the battery cabinet 26 through a connecting wire 10, and the length direction of the connecting wire 10 is parallel to the ejection direction of the battery module box body 1. More specifically, a hard shell is wrapped on the outer wall of the connecting wire 10, so that the length direction of the connecting wire 10 is parallel to the ejection direction, and the length of the connecting wire 10 is not greater than the distance between the rear wall of the battery module box body 1 and the battery cabinet 26 (when the battery module box is not ejected). When the battery module box is ejected, the positive and negative electrode plug 9 is separated from the positive and negative electrode socket 8, so that the battery module box is powered off.

[0024] Specifically, a heat dissipation fan 2 is arranged on the battery module box body 1, so that the heat dissipation fan 2 can dissipate heat of the battery module box and reduce the possibility of battery fire.

[0025] An automatic pre-warning ejected energy storage battery module box comprises the following steps: when a pre-warning control system 6 detects that the temperature of a battery is abnormal, a temperature signal is converted into an electric signal and transmitted to a control box 13, the electric current in an electromagnet 14 is cut off through a single-chip microcomputer in the control box 13, the electromagnet 14 loses magnetism, an iron positioning device 15 drives a trigger rod 16 to move forward under the action of a trigger spring 17, the front end of the trigger rod 16 extends into a pressing groove 22 on a first locking rod 191, the end of the trigger rod 16 interacts with the inclined surface at the bottom wall of the pressing groove 22, so that the first locking rod 191 and a second locking rod 193 move downward at the same time, a first ejection block 241 and a second ejection block 242 lose limitation, a primary ejection rod 23 and a three-stage compression ejection rod 25 extend and eject at the same time, so that a push plate 7 pushes the base 5 and the battery box to be ejected out of the battery cabinet 26.

[0026] The temperature anomaly index is preferably that the battery temperature exceeds 50 DEG C.

[0027] The application can be applied to various types of electrochemical energy storage stations. Referring to FIG. 6, the embodiment is applied to a container type energy storage system. The container type energy storage system includes a plurality of battery module boxes and a battery cabinet 26. The plurality of battery module boxes are integrated and installed in the battery cabinet 26.

[0028] When the battery temperature in a certain battery module box exceeds the normal range, the early warning control system 6 immediately responds and ejects the faulty battery module box to the outside of the battery cabinet 26. After the faulty battery module box is ejected, the early warning control system 6 sends a signal to the container type energy storage system general control system. The energy storage system general control system can determine the disaster degree caused by the ejected faulty module in combination with the smoke sensor, flame detector, camera and other monitoring and early warning devices in the container and take corresponding measures. The general control system includes a battery management system.

[0029] Specifically, if the ejected faulty battery module box does not occur thermal runaway and the sensor in the container does not monitor smoke and flame, the general control system can reduce the temperature through air conditioning and other equipment, and strengthen the ventilation of the passages between the battery cabinets 26 in the container. The contact area of the ejected faulty module box with the air flow is increased, the air cooling effect is enhanced, the faulty battery is effectively cooled, the occurrence of thermal runaway is avoided, and the design of a complex air cooling passage is avoided.

[0030] If the ejected faulty battery module box occurs thermal runaway and the sensor in the container does not monitor smoke and flame, the general control system starts the fire extinguishing system and applies perfluorohexone, water mist and other fire extinguishing and cooling media. The contact area of the ejected faulty battery module box with the fire extinguishing and cooling agent is increased, the fire extinguishing and disaster control ability of the existing energy storage container fire extinguishing system is effectively improved; at the same time, after the ejected faulty battery module box is ejected, the faulty battery module is separated from the normal battery module, the contact area with the surrounding normal module is reduced, the heat spread is effectively inhibited, the thermal runaway is prevented from spreading among the modules, and at the same time, the automatic ejection of the faulty battery module box can facilitate the staff to find and troubleshoot the faulty battery module.

[0031] The specific embodiments of the application are described in detail in combination with the drawings, but the application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the application, and still fall within the protection scope of the application.

Claims

1. An energy storage battery module box with automatic warning pop-up, characterized in that: The application relates to a battery cabinet (26), a battery module box body (1), a battery management system, a pre-warning ejection device and a slide rail base, wherein the battery module box body (1) is slidably arranged in the battery cabinet (26) through the slide rail base, and the pre-warning ejection device is connected with the battery module box body (1) and the battery management system respectively.

2. The automatic pre-warning pop-out energy storage battery module box according to claim 1, characterized in that: The pre-warning ejection device comprises a pre-warning control system (6) and an ejection device (4), the ejection device (4) comprises an outer shell (11) and an inner shell (12) arranged in the outer shell (11), a compression ejection rod is arranged in the inner shell (12), an ejection control system for controlling the compression ejection rod is arranged in the outer shell (11), the ejection control system is connected with the pre-warning control system (6) and the compression ejection rod respectively, and the battery management system is connected with the pre-warning control system (6).

3. The automatic pre-warning pop-out energy storage battery module box according to claim 2, characterized in that: The compression ejection rod comprises a three-stage compression ejection rod (25) and a primary ejection rod (23), the three-stage ejection rod (251) comprises a primary ejection rod (253), a secondary ejection rod (252) and a three-stage ejection rod (251) connected in sequence, one end of the primary ejection rod (23) is slidably arranged in the inner shell (12), the other end of the primary ejection rod (23) is connected with the three-stage ejection rod (251) away from one end of the three-stage ejection rod (251), and first and second ejection blocks (241) and (242) are arranged on the primary ejection rod and the primary ejection rod (253) respectively. The ejection control system comprises a first locking rod (191), a second locking rod (193), a trigger rod (16) and a trigger control device for controlling the movement of the trigger rod (16), the first locking rod (191) and the second locking rod (193) are each provided with a limiting protrusion (21) at the top, the first locking rod (191) and the second locking rod (193) are each connected with the bottom end of the outer shell (11) through a supporting spring (20), the first locking rod (191) and the second locking rod (193) are connected through a connecting rod (192), the outer wall of the first locking rod (191) is provided with a pressing groove (22), the inner bottom wall of the pressing groove (22) is an upward inclined surface, the trigger rod (16) is slidingly arranged in the outer shell (11), and one end of the trigger rod (16) is connected with the trigger control device; when the compressed ejection rod is in a compressed state, the limiting protrusions (21) on the first locking rod (191) and the second locking rod (193) are located on one side of the first ejection block (241) and the second ejection block (242) respectively, the two limiting protrusions (21) limit the first ejection block (241) and the second ejection block (242) respectively, so that the first ejection block (241) and the second ejection block (242) are prevented from moving, the supporting spring (20) is in a natural state, and the end of the trigger rod (16) away from the trigger control device is located outside the pressing groove (22); when the compressed ejection rod is ejected, the supporting spring (20) is in a compressed state, the limiting protrusion (21) is located below the first ejection block (241) and the second ejection block (242), and the end of the trigger rod (16) away from the trigger control device is located in the pressing groove (22).

4. The automatic pre-warning pop-out energy storage battery module box according to claim 3, characterized in that: The trigger control device comprises an electromagnet (14), an iron positioning device (15) and a trigger spring (17), the trigger rod (16) is slidingly connected with the outer shell (11) through a limiting ring (18), the electromagnet (14) is fixed in the outer shell (11), the iron positioning device (15) is slidingly installed in the outer shell (11), the iron positioning device (15) is located on the side of the electromagnet (14) close to the trigger rod (16), the iron positioning device (15) is fixedly connected with the end of the trigger rod (16) away from the pressing groove (22), one end of the trigger spring (17) is fixedly connected with the limiting ring (18), and the other end of the trigger spring (17) is fixedly connected with the iron positioning device (15); the electromagnet (14) is connected with the early warning control system (6) through a control box (13).

5. The automatic pre-warning pop-out energy storage battery module box according to claim 2, characterized in that: The slide rail base comprises a three-stage slide rail (3) and a base (5), the three-stage slide rail (3) comprises a fixed rail (31), a middle rail (32) and a movable rail (33), the fixed rail (31) is fixed on the battery cabinet (26), the movable rail (33) is fixed on the base (5), and the fixed rail (31) and the movable rail (33) are slidingly connected through the middle rail (32); the base (5) is fixed at the bottom of the battery module box body (1).

6. The automatic pre-warning pop-out energy storage battery module box according to claim 5, characterized in that: The compressed ejection rod is fixedly connected with a pushing plate (7) at the ejection end, and the pushing plate (7) is located at the back side of the base (5).

7. The automatic pre-warning pop-out energy storage battery module box according to claim 1, characterized in that: The positive and negative electrode sockets (8) are arranged on the inner wall of the rear side of the battery module box body (1), the positive and negative electrode plugs (9) are arranged in the positive and negative electrode sockets (8), the positive and negative electrode plugs (9) are fixedly connected with the battery cabinet (26) through the connecting wires (10), and the length direction of the connecting wires (10) is parallel to the ejecting direction of the battery module box body (1).

8. The automatic pre-warning pop-out energy storage battery module box according to claim 1, characterized in that: The battery module box body (1) is provided with a heat dissipation fan (2).

9. A method for operating an energy storage battery module box with automatic pre-alarm ejection, characterized in that, The method comprises the following steps: When the pre-warning control system (6) detects that the temperature of the battery is abnormal, the temperature signal is converted into an electric signal and transmitted to the control box (13), the current in the electromagnet (14) is cut off by the single-chip microcomputer in the control box (13), the electromagnet (14) loses magnetism, the iron positioning device (15) drives the trigger rod (16) to move forward under the action of the trigger spring (17), the front end of the trigger rod (16) extends into the pressing groove (22) on the first locking rod (191), the end of the trigger rod (16) interacts with the inclined surface of the bottom wall of the pressing groove (22) to drive the first locking rod (191) and the second locking rod (193) to move downward at the same time, the first ejection block (241) and the second ejection block (242) lose the limitation, the primary ejection rod (23) and the tertiary compression ejection rod (25) are stretched and ejected at the same time, and the push plate (7) pushes the base (5) and the battery box to be ejected out of the battery cabinet (26).

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