Battery module box easy to disassemble

Abstract

The battery module box comprises a battery cabinet, the battery cabinet comprises a containing groove used for containing the battery module box, one end of the containing groove is open, a base is arranged in the containing groove in a sliding mode through a sliding rail, and the base slides in and out of the containing groove. A battery module box body is slidably installed on the base through a first fixing rail, the first fixing rail is arranged in the sliding direction of the base, the early warning ejection device is located at the end, away from an opening of the containing groove, in the battery cabinet, and the ejection end of the early warning ejection device is connected with the base. A limiting mechanism used for limiting sliding of the battery module box body is arranged at the end, away from the early warning ejection device, of the base. And the control system is connected with the early warning ejection device. When the battery needs to be taken out, the battery module box can be taken down only by popping the battery module box main body out of the battery cabinet through the early warning ejection device and then canceling the limiting of the limiting mechanism on the battery module box main body, actions such as thread disassembly and the like are not needed, and the battery is convenient and rapid to take and place.

Description

Technical Field

[0001] The utility model relates to the technical field of battery module boxes, in particular to a battery module box which is easy to disassemble. Background Art

[0002] Electrochemical energy storage is an important support for the construction of new power systems. The battery cabinet is the core component of the electrochemical energy storage system, and its subunit is the battery module box. Due to the limitations of energy density and space, the battery module box and the battery cabinet in general energy storage power stations or self-service battery replacement cabinets are arranged relatively closely, and the line sockets on the battery module box are relatively complex. Therefore, when a single battery module box fails and needs to be repaired, or needs to be taken out for use, the battery module box cannot be quickly and easily removed from the battery cabinet. Therefore, it is necessary to develop a battery module box that is easy to disassemble to ensure the efficient operation of the energy storage system. Utility Model Content

[0003] In view of the fire characteristics of electrochemical energy storage systems and the current deficiencies in fire-fighting measures, the utility model proposes an intelligent, practical and efficient battery module box, that is, the battery module box can be ejected to the outside of the battery cabinet through remote control, so as to realize the fast and efficient disassembly and maintenance of the energy storage power station, and also facilitate the use of the self-service battery replacement cabinet. The technical solution of the utility model is as follows:

[0004] A battery module box that is easy to disassemble, comprising a battery cabinet, the battery cabinet comprising a receiving groove for placing the battery module box, one end of the receiving groove is open, a base is slidably arranged in the receiving groove through a slide rail, the base slides in and out of the receiving groove, a battery module box body is slidably mounted on the base through a first fixed rail, the first fixed rail is arranged along the sliding direction of the base, an early warning ejection device is located at one end of the battery cabinet away from the opening of the receiving groove, an ejection end of the early warning ejection device is connected to the base, and a limiting mechanism for limiting the sliding of the battery module box body is arranged at one end of the base away from the early warning ejection device;

[0005] The control system is connected with the early warning ejection device.

[0006] Preferably, the early warning ejection device includes an early warning control system and an ejection device, the ejection device includes a shell, a compression ejection rod and an ejection control system for controlling the ejection of the compression ejection rod are arranged in the shell, and the ejection control system is respectively connected to the early warning control system and the compression ejection rod.

[0007] Preferably, the compression ejection rod comprises a three-stage compression ejection rod, the three-stage compression ejection rod comprises a first-stage ejection rod, a second-stage ejection rod and a third-stage ejection rod connected in sequence, one end of the third-stage ejection rod is fixedly connected to the inner wall of the shell, the first-stage ejection rod is provided with an ejection block, and one end of the first-stage ejection rod away from the second-stage ejection rod is fixedly connected to the base;

[0008] The ejection control system includes a locking rod, a trigger rod and a trigger control device for controlling the movement of the trigger rod, a limiting protrusion is provided on the top of the locking rod, the bottom of the locking rod is connected to the bottom end of the shell through a supporting spring, a pressing groove is provided on the outer wall of the locking rod, the inner bottom wall of the pressing groove is an inclined surface inclined upward, the trigger rod is slidably arranged in the shell, and one end of the trigger rod is connected to the trigger control device; when the compression ejection rod is in a compressed state, the limiting protrusion on the locking rod is located on one side of the ejection block, the limiting protrusion limits the ejection block to prevent the 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 pops out, the supporting spring is in a compressed state, the limiting protrusion is located below the ejection block, and the end of the trigger rod away from the trigger control device is located in the pressing groove.

[0009] Preferably, the trigger control device includes an electromagnet, an iron fixation positioner and a trigger spring, the trigger rod is slidably connected to the shell through a limit ring, the electromagnet is fixed in the shell, the iron fixation positioner is slidably installed in the shell, the iron fixation positioner is located on the side of the electromagnet close to the trigger rod, the iron fixation positioner is fixedly connected to the end of the trigger rod away from the pressure groove, one end of the trigger spring is fixedly connected to the limit ring, the other end of the trigger spring is fixedly connected to the iron fixation positioner, and the electromagnet is connected to the early warning control system through a control box.

[0010] Preferably, the slide rail is a three-stage slide rail, and the three-stage slide rail includes a second fixed rail, a middle rail and a movable rail, the second fixed rail is fixed on the battery cabinet, the movable rail is fixed on the base, and the second fixed rail and the movable rail are slidably connected via the middle rail.

[0011] Preferably, the first fixed rail includes a first rail and a second rail, wherein there are two first rails, which are respectively fixed on both sides of the top of the base, and there are two second rails, which are respectively fixed on both sides of the bottom of the battery module box body;

[0012] The first track is L-shaped, the horizontal plate of the first track is connected to the base, the vertical plate of the first track is located at one end of the horizontal plate of the first track close to the side wall of the base, a first baffle is fixed to the inner side of the top of the vertical plate of the first track, the first baffle is inclined downward in a direction away from the vertical plate of the first track, and the end of the first track close to the early warning ejection device is closed;

[0013] The second track is L-shaped, the top of the vertical plate of the second track is connected to the battery module box body, the cross plate of the second track is located at the bottom end of the second track vertical plate, the vertical plate of the second track is located at the end of the second track cross plate away from the side wall of the battery module box body, and the second baffle is fixed to the end of the second track cross plate away from the second track vertical plate, and the second baffle is inclined toward the direction close to the second track vertical plate and upward.

[0014] Preferably, the limiting mechanism includes a block, a driving rod and a knob, a sliding groove is provided on one end of the base away from the early warning ejection device, the block is slidably arranged in the sliding groove, the bottom end of the block is connected to the base through a reset spring, a trigger groove is provided on the side wall of the block close to the battery module box body, the inner bottom wall of the trigger groove is an inclined surface inclined upward, a transmission shaft is rotatably installed in the base of the block close to the battery module box body, a gear is coaxially installed on the transmission shaft, the driving rod is slidably arranged above the gear, a first rack is fixed to the bottom of the driving rod, the first rack is meshed with the gear, the knob is rotatably arranged on the outer wall of the base, and the knob is fixedly connected to one end of the transmission shaft;

[0015] When one end of the driving rod is located in the triggering slot, the block is located in the sliding slot and the reset spring is compressed; when one end of the driving rod is located outside the triggering slot, the top of the block is located outside the sliding slot and the reset spring returns to a natural state.

[0016] Preferably, a limit rod is slidably arranged below the gear, a second rack is fixed on the top of the limit rod, and the second rack is meshed with the gear;

[0017] When one end of the driving rod is located in the triggering slot, the limiting rod is located at one side of the stopper; when one end of the driving rod is located outside the triggering slot, the limiting rod is located at the bottom of the stopper.

[0018] Preferably, there are multiple limit rods, which are spaced apart along the length direction of the transmission shaft, a first rack is provided at the bottom of the driving rod corresponding to each limit rod, and a gear is provided on the transmission shaft corresponding to each limit rod.

[0019] The utility model has the following beneficial effects:

[0020] 1. When the battery needs to be removed, the battery module box body can be ejected out of the battery cabinet by the early warning ejection device, and then the limit of the battery module box body by the limit mechanism can be cancelled, and the battery module box can be removed without the need for thread disassembly and other actions, making the battery easy to take and put. At the same time, the early warning ejection device of the utility model can monitor and warn of abnormal temperature. When the temperature is too high, the battery module box can also be ejected out of the battery cabinet, so that the abnormal battery module box and the normal battery module box are no longer closely arranged, which is conducive to extinguishing or cooling the abnormal battery module box.

[0021] 2. The utility model can ensure the safety of battery placement: the base is fixedly connected to the ejection end of the early warning ejection device. When the battery module box body is located in the battery cabinet, the battery module box cannot be directly taken out of the battery cabinet from the outside. It is necessary to send an ejection command to the early warning ejection device through the control system, and the battery module box can be disassembled only after the battery module box body is ejected. The battery placement is highly safe and the situation of arbitrary removal of batteries is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the early warning ejection device of the utility model when it is activated;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model when the early warning ejection device is not activated;

[0024] Figure 3 This is a schematic diagram of the relationship between the main body and the base of the battery module box of the utility model;

[0025] Figure 4 This is a schematic diagram of the relationship between the limiting mechanism and the base of the utility model;

[0026] Figure 5 This is a three-dimensional diagram of the limit mechanism structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the bottom structure of the limiting mechanism of the utility model;

[0028] Figure 7 This is a schematic diagram of the first track and the second track of the utility model being separated;

[0029] Figure 8 This is a schematic diagram of the matching state of the first track and the second track of the utility model;

[0030] Fig. 9 This is a schematic diagram of the structure of the ejection device of the utility model when it is activated;

[0031] Fig.10 This is a schematic diagram of the structure of the ejection device of the utility model when it is not activated;

[0032] Fig.11 It is a structural schematic diagram of the battery module box of the utility model when it pops out of the battery cabinet.

[0033] Numbers in the figure: 1. Battery module box body; 2. Cooling fan; 3. Three-stage slide rail; 301. Second fixed rail; 302. Middle rail; 303. Movable rail; 4. First fixed rail; 401. First rail; 402. Second rail; 6. Early warning control system; 7. Ejection device; 8. Three-stage compression ejection rod; 801. Three-stage ejection rod; 802. Second-stage ejection rod; 803. First-stage ejection rod; 9. Control box; 10. Electromagnet; 11. Iron setting 1. Positioner; 2. Trigger rod; 3. Trigger spring; 4. Limiting ring; 5. Support spring; 6. Locking rod; 7. Pressing groove; 8. Limiting protrusion; 9. Ejection block; 10. Battery cabinet; 11. Block; 12. Trigger groove; 13. Reset spring; 14. Limiting rod; 15. Gear; 16. Second rack; 17. First rack; 18. Driving rod; 19. Transmission shaft; 19. First baffle; 20. Second baffle; 21. Knob. DETAILED DESCRIPTION

[0034] In order to make the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the given embodiment is only one implementation method and does not represent all embodiments.

[0035] In this article, the terms "upper, lower, front, back, inside, outside" etc. are established based on the positional relationships shown in the drawings. Depending on the different drawings, the corresponding positional relationships may also change accordingly. Therefore, they cannot be understood as absolute limitations on the scope of protection.

[0036] Combined with Figure 1 -Attached Fig.11 , an easily disassembled battery module box, comprising a battery cabinet 20, the battery cabinet 20 comprising a receiving groove for placing the battery module box, one end of the receiving groove is open, a base is slidably arranged in the receiving groove through a slide rail, the base slides in and out of the receiving groove, a battery module box body 1 is slidably mounted on the base through a first fixed rail 4, the first fixed rail 4 is arranged along the sliding direction of the base, an early warning ejection device 7 is located at an end of the battery cabinet 20 away from the opening of the receiving groove, the ejection end of the early warning ejection device 7 is connected to the base, and a limiting mechanism for limiting the sliding of the battery module box body 1 is provided on the end of the base away from the early warning ejection device 7;

[0037] The control system is connected to the early warning ejection device 7, and an ejection instruction is transmitted to the early warning ejection device 7 through the control system.

[0038] Specifically, the early warning ejection device 7 includes an early warning control system 6 and an ejection device 7. The ejection device 7 includes a shell, in which a compression ejection rod and an ejection control system for controlling the ejection of the compression ejection rod are arranged. The ejection control system is respectively connected to the early warning control system 6 and the compression ejection rod.

[0039] Specifically, the compression ejection rod includes a three-stage compression ejection rod 8, and the three-stage compression ejection rod 8 includes a first-stage ejection rod 803, a second-stage ejection rod 802 and a third-stage ejection rod 801 connected in sequence, one end of the third-stage ejection rod 801 is fixedly connected to the inner wall of the shell, and the first-stage ejection rod 803 is provided with an ejection block 19, and one end of the first-stage ejection rod 803 away from the second-stage ejection rod 802 is fixedly connected to the base; more specifically, the third-stage ejection rod 801 and the second-stage ejection rod 802 are both provided with a receiving groove, the second-stage ejection rod 802 is slidably arranged in the receiving groove of the third-stage ejection rod 801, and a first spring is installed between the rear end of the second-stage ejection rod 802 and the rear inner wall of the third-stage ejection rod 801, and the first-stage ejection rod 803 is slidably arranged in the receiving groove of the second-stage ejection rod 802, and a second spring is installed between the rear end of the first-stage ejection rod 803 and the rear inner wall of the second-stage ejection rod 802;

[0040] The ejection control system includes a locking rod 16, a trigger rod 12 and a trigger control device for controlling the movement of the trigger rod 12. The top of the locking rod 16 is provided with a limiting protrusion 18. The bottom of the locking rod 16 is connected to the bottom end of the shell through a support spring 15. A pressing groove 17 is provided on the outer wall of the locking rod 16. The inner bottom wall of the pressing groove 17 is an inclined surface that is inclined upward. The trigger rod 12 is slidably arranged in the shell, and one end of the trigger rod 12 is connected to the trigger control device. When the compression ejection rod is in a compressed state, the locking rod 1 The limiting protrusion 18 on 6 is located on one side of the ejection block 19, and the limiting protrusion 18 limits the ejection block 19 to prevent the ejection block 19 from moving, thereby preventing the three-stage compression ejection rod 8 from popping out, and the support spring 15 is in a natural state, and the end of the trigger rod 12 away from the trigger control device is located outside the pressing groove 17; when the compression ejection rod pops out, the support spring 15 is in a compressed state, the limiting protrusion 18 is located below the ejection block 19, and the end of the trigger rod 12 away from the trigger control device is located in the pressing groove 17.

[0041] The trigger control device includes an electromagnet 10, an iron-fixed positioner 11 and a trigger spring 13. The trigger rod 12 is slidably connected to the housing through a limit ring 14. The electromagnet 10 is fixed in the housing. The iron-fixed positioner 11 is slidably installed in the housing. The iron-fixed positioner 11 is located on the side of the electromagnet 10 close to the trigger rod 12. The iron-fixed positioner 11 is fixedly connected to one end of the trigger rod 12 away from the pressure groove 17. One end of the trigger spring 13 is fixedly connected to the limit ring 14, and the other end of the trigger spring 13 is fixedly connected to the iron-fixed positioner 11. The electromagnet 10 is connected to the early warning control system 6 through the control box 9. A single-chip microcomputer is arranged in the control box 9, and the on and off of the electromagnet 10 is controlled by the single-chip microcomputer.

[0042] Specifically, the slide rail is a three-stage slide rail 3, and the three-stage slide rail 3 includes a second fixed rail 301, a middle rail 302, and a movable rail 303. The second fixed rail 301 is fixed on the battery cabinet 20, and the movable rail 303 is fixed on the base. The second fixed rail 301 and the movable rail 303 are slidably connected through the middle rail 302. The three-stage slide rail 3 can ensure the smoothness of the battery module box to be ejected, and avoid jamming during the ejection process, which causes the battery module box to be unable to be completely ejected.

[0043] Specifically, the first fixed rail 4 includes a first rail 401 and a second rail 402. There are two first rails 401, which are respectively fixed on both sides of the top of the base, and there are two second rails 402, which are respectively fixed on both sides of the bottom of the battery module box body 1.

[0044] The first track 401 is L-shaped, the horizontal plate of the first track 401 is connected to the base, the vertical plate of the first track 401 is located at one end of the horizontal plate of the first track 401 close to the side wall of the base, a first baffle 30 is fixed to the inner side of the top of the vertical plate of the first track 401, the first baffle 30 is away from the vertical plate of the first track 401 and tilted downward, and the end of the first track 401 close to the early warning ejection device 7 is closed;

[0045] The second track 402 is L-shaped, the top of the vertical plate of the second track 402 is connected to the battery module box body 1, the horizontal plate of the second track 402 is located at the bottom of the vertical plate of the second track 402, and the vertical plate of the second track 402 is located at the end of the horizontal plate of the second track 402 away from the side wall of the battery module box body 1. The second baffle 31 is fixed to the end of the horizontal plate of the second track 402 away from the vertical plate of the second track 402, and the second baffle 31 is inclined upward in the direction close to the vertical plate of the second track 402. After the first track 401 and the second track 402 are slidably connected, the first baffle 30 and the second baffle 31 will restrict each other, so that the battery module box body 1 can only move along the setting direction of the first fixed rail 4, so as to prevent the battery module box body 1 from leaving the track from the upper and lower directions.

[0046] Specifically, the limiting mechanism includes a block 21, a driving rod 28 and a knob 33. A sliding groove is provided on the end of the base away from the early warning ejection device 7. The block 21 is slidably arranged in the sliding groove. The bottom end of the block 21 is connected to the base through a reset spring 23. A trigger groove 22 is provided on the side wall of the block 21 close to the battery module box body 1. The inner bottom wall of the trigger groove 22 is an inclined surface inclined upward. A transmission shaft 29 is rotatably installed in the base of the block 21 close to the battery module box body 1. A gear 25 is coaxially installed on the transmission shaft 29. The driving rod 28 is slidably arranged above the gear 25. A first rack 27 is fixed to the bottom of the driving rod 28. The first rack 27 is meshed with the gear 25. The knob 33 is rotatably arranged on the outer wall of the base, and the knob 33 is fixedly connected to one end of the transmission shaft 29.

[0047] When one end of the driving rod 28 is located in the triggering slot 22, the block 21 is located in the sliding slot and the return spring 23 is compressed; when one end of the driving rod 28 is located outside the triggering slot 22, the top of the block 21 is located outside the sliding slot and the return spring 23 returns to a natural state.

[0048] A limit rod 24 is slidably disposed below the gear 25, a second rack 26 is fixed to the top of the limit rod 24, and the second rack 26 is meshed with the gear 25;

[0049] When one end of the driving rod 28 is located in the triggering slot 22, the limiting rod 24 is located at one side of the stopper 21; when one end of the driving rod 28 is located outside the triggering slot 22, the limiting rod 24 is located at the bottom of the stopper 21. When in use, the knob 33 is rotated, the knob 33 drives the transmission shaft 29 to rotate, the transmission shaft 29 drives the gear 25 to rotate, and the gear 25 meshes with the first rack 27 and the second rack 26 to make the driving rod 28 and the limiting rod 24 move in opposite directions.

[0050] The knob 33 is located at one side of the base. When the battery module box body 1 is located in the battery cabinet 20, the knob 33 is also located in the battery cabinet 20. At this time, the knob 33 cannot be rotated from the outside. When the battery module box body 1 needs to be installed, the knob 33 is first rotated to insert the driving rod 28 into the trigger groove 22, and the stopper 21 is retracted into the base through the cooperation of the driving rod 28 and the trigger groove 22. At this time, the battery module box body 1 can be slid in from one end of the first rail 401 to connect the battery module box to the base, and then the knob 33 is rotated in the opposite direction to make the driving rod 28 disengage from the trigger groove 22. At this time, the stopper 21 is bounced out of the base under the action of the return spring 23, limiting the battery module box body 1 so that the battery module box body 1 cannot slide, and the limiting rod 24 moves to the bottom of the stopper 21. Due to the blocking effect of the limiting rod 24, the stopper 21 cannot be retracted by pressing the stopper 21. Therefore, after the battery module box body 1 is pushed into the battery cabinet 20 together with the base, the limiting of the battery module box by the stopper 21 cannot be cancelled from the outside, thereby improving the safety of battery placement.

[0051] Specifically, there are multiple limit rods 24, and the multiple limit rods 24 are arranged at intervals along the length direction of the transmission shaft 29. A first rack 27 is provided at the bottom of the driving rod 28 corresponding to each limit rod 24, and a gear 25 is provided on the transmission shaft 29 corresponding to each limit rod 24. Multiple limit rods 24 can improve the stability of the support of the limit rod 24 on the block 21.

[0052] Specifically, a heat dissipation fan 2 is provided on the battery module box body 1, and the heat dissipation fan 2 can dissipate heat from the battery module box to reduce the possibility of battery fire.

[0053] The utility model can be applied to various types of battery swap stations. Fig.11 The battery swap station includes a plurality of battery module boxes and a battery cabinet 20. The plurality of battery module boxes are integrated and installed in the battery cabinet 20. The ejection program is preset in the control system. For example, after scanning and paying, the control system can be given an instruction to trigger the ejection program, or the manager can press the ejection button when performing maintenance to trigger the ejection program. When the control system receives the trigger instruction, the trigger signal is transmitted to the control box 9, and the current in the electromagnet 10 is cut off by the single-chip microcomputer in the control box 9. The electromagnet 10 loses its magnetism. The iron positioner 11 drives the trigger rod 12 to move forward under the action of the trigger spring 13. The front end of the trigger rod 12 extends into the pressure groove 17 on the locking rod 16. The end of the trigger rod 12 interacts with the bottom wall slope of the pressure groove 17 to force the locking rod 16 to move downward. The ejection block 19 loses its restriction, and the three-stage compression ejection rod 8 instantly stretches and pops out, pushing the base and the battery box to pop out of the battery cabinet 20.

[0054] Or when the early warning control system 6 detects that the battery temperature is abnormal, the early warning control system 6 converts the temperature signal into an electrical signal and transmits it to the control box 9 to perform the above-mentioned ejection process.

[0055] The specific implementation methods of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described implementation methods. For those skilled in the art, various changes, modifications, substitutions and variations of these implementation methods without departing from the principles and spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. An easily disassembled battery module box, comprising a battery cabinet (20) and a control system, wherein the battery cabinet (20) comprises a receiving groove for placing the battery module box, one end of the receiving groove is open, and the characteristics are: A base (5) is slidably arranged in the receiving groove via a slide rail, the base (5) slides in and out of the receiving groove, a battery module box body (1) is slidably mounted on the base (5) via a first fixed rail (4), the first fixed rail (4) is arranged along the sliding direction of the base (5), the early warning ejection device is located at an end of the battery cabinet (20) away from the receiving groove opening, the ejection end of the early warning ejection device is fixedly connected to the base (5), and a limiting mechanism for limiting the sliding of the battery module box body (1) is provided on the end of the base (5) away from the early warning ejection device; The control system is connected to the early warning ejection device; The early warning ejection device comprises an early warning control system (6) and an ejection device (7), wherein the ejection device (7) comprises a housing, wherein a compression ejection rod and an ejection control system for controlling ejection of the compression ejection rod are arranged in the housing, and wherein the ejection control system is connected to the early warning control system (6) and the compression ejection rod respectively; The compression ejection rod comprises a three-stage compression ejection rod (8), the three-stage compression ejection rod (8) comprises a first-stage ejection rod (803), a second-stage ejection rod (802) and a third-stage ejection rod (801) connected in sequence, one end of the third-stage ejection rod (801) is fixedly connected to the inner wall of the shell, the first-stage ejection rod (803) is provided with an ejection block (19), and one end of the first-stage ejection rod (803) away from the second-stage ejection rod (802) is fixedly connected to the base (5); The ejection control system comprises a locking rod (16), a trigger rod (12) and a trigger control device for controlling the movement of the trigger rod (12); a limiting protrusion (18) is provided on the top of the locking rod (16); the bottom of the locking rod (16) is connected to the bottom end of the housing via a supporting spring (15); a pressing groove (17) is provided on the outer wall of the locking rod (16); the inner bottom wall of the pressing groove (17) is an inclined surface inclined upward; the trigger rod (12) is slidably arranged in the housing; one end of the trigger rod (12) is connected to the trigger control device; when the compression ejection rod is in a compressed state, the The limiting protrusion (18) on the locking rod (16) is located at one side of the ejection block (19), and the limiting protrusion (18) limits the ejection block (19) to prevent the ejection block (19) from moving. The support spring (15) is in a natural state, and the end of the trigger rod (12) away from the trigger control device is located outside the pressing groove (17); when the compressed ejection rod is ejected, the support spring (15) is in a compressed state, the limiting protrusion (18) is located below the ejection block (19), and the end of the trigger rod (12) away from the trigger control device is located inside the pressing groove (17); The limiting mechanism comprises a stopper (21), a driving rod (28) and a knob (33); a sliding groove is provided on the end of the base (5) away from the early warning ejection device; the stopper (21) is slidably arranged in the sliding groove; the bottom end of the stopper (21) is connected to the base (5) via a return spring (23); a trigger groove (22) is provided on the side wall of the stopper (21) close to the battery module box body (1); the inner bottom wall of the trigger groove (22) is an inclined surface inclined upward; the stopper (21) A transmission shaft (29) is rotatably mounted in a base (5) near one side of the battery module box body (1); a gear (25) is coaxially mounted on the transmission shaft (29); the drive rod (28) is slidably mounted above the gear (25); a first rack (27) is fixed to the bottom of the drive rod (28); the first rack (27) is meshed with the gear (25); the knob (33) is rotatably mounted on the outer wall of the base (5); and the knob (33) is fixedly connected to one end of the transmission shaft (29); When one end of the driving rod (28) is located in the triggering slot (22), the stopper (21) is located in the sliding slot and the return spring (23) is compressed; when one end of the driving rod (28) is located outside the triggering slot (22), the top of the stopper (21) is located outside the sliding slot and the return spring (23) returns to a natural state.

2. The easily disassembled battery module box according to claim 1, characterized in that: The trigger control device comprises an electromagnet (10), an iron-fixed positioner (11) and a trigger spring (13); the trigger rod (12) is slidably connected to the housing via a limit ring (14); the electromagnet (10) is fixed in the housing; the iron-fixed positioner (11) is slidably mounted in the housing; the iron-fixed positioner (11) is located on a side of the electromagnet (10) close to the trigger rod (12); the iron-fixed positioner (11) is fixedly connected to an end of the trigger rod (12) away from the pressure groove (17); one end of the trigger spring (13) is fixedly connected to the limit ring (14); the other end of the trigger spring (13) is fixedly connected to the iron-fixed positioner (11); and the electromagnet (10) is connected to the early warning control system (6) via a control box (9).

3. The easily disassembled battery module box according to claim 1, characterized in that: The slide rail is a three-level slide rail (3), and the three-level slide rail (3) comprises a second fixed rail (301), a middle rail (302), and a movable rail (303); the second fixed rail (301) is fixed on the battery cabinet (20), the movable rail (303) is fixed on the base (5), and the second fixed rail (301) and the movable rail (303) are slidably connected via the middle rail (302).

4. The easily disassembled battery module box according to claim 1, characterized in that: The first fixed rail (4) comprises a first rail (401) and a second rail (402), wherein there are two first rails (401), and the two first rails (401) are respectively fixed on two sides of the top of the base (5), and there are two second rails (402), and the two second rails (402) are respectively fixed on two sides of the bottom of the battery module box body (1); The first track (401) is L-shaped, the horizontal plate of the first track (401) is connected to the base (5), the vertical plate of the first track (401) is located at one end of the horizontal plate of the first track (401) close to the side wall of the base (5), a first baffle (30) is fixed to the inner side of the top of the vertical plate of the first track (401), the first baffle (30) is inclined downward in a direction away from the vertical plate of the first track (401), and one end of the first track (401) close to the early warning ejection device is closed; The second track (402) is L-shaped, the top of the vertical plate of the second track (402) is connected to the battery module box body (1), the horizontal plate of the second track (402) is located at the bottom of the vertical plate of the second track (402), the vertical plate of the second track (402) is located at the end of the horizontal plate of the second track (402) away from the side wall of the battery module box body (1), and the second baffle plate (31) is fixed to the end of the horizontal plate of the second track (402) away from the vertical plate of the second track (402), and the second baffle plate (31) is inclined in a direction close to the vertical plate of the second track (402) and upward.

5. The easily disassembled battery module box according to claim 1, characterized in that: A limit rod (24) is slidably disposed below the gear (25), a second rack (26) is fixed to the top of the limit rod (24), and the second rack (26) is meshed with the gear (25); When one end of the driving rod (28) is located in the triggering slot (22), the limiting rod (24) is located on one side of the stopper (21); when one end of the driving rod (28) is located outside the triggering slot (22), the limiting rod (24) is located at the bottom of the stopper (21).

6. The easily disassembled battery module box according to claim 5, characterized in that: There are a plurality of limit rods (24), which are arranged at intervals along the length direction of the transmission shaft (29), a first rack (27) is provided at the bottom of the driving rod (28) corresponding to each limit rod (24), and a gear (25) is provided on the transmission shaft (29) corresponding to each limit rod (24).

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