Outdoor split type lithium battery cabinet

Abstract

The invention discloses an outdoor split type lithium battery cabinet, and relates to the technical field of lithium battery cabinets, the outdoor split type lithium battery cabinet comprises a battery cabinet body, two cabinet doors are hinged to the outer wall of an opening of the battery cabinet body, a support frame is fixedly connected to the inner wall of the middle of the battery cabinet body, a support plate is further arranged in the battery cabinet body, and a battery module is arranged at the top of the support plate; the inner wall of the bottom of the battery cabinet body is further fixedly connected with a control box, the top of the supporting plate is provided with an auxiliary disconnecting mechanism which is used for being disconnected in time to ensure safe operation of the battery cabinet body when the battery modules are abnormal during charging and discharging, a single abnormal battery module is disconnected, and charging and discharging of other normal battery modules are not affected. According to the battery cabinet, the overall shutdown cost of the battery cabinet body is reduced, the operation efficiency of the battery cabinet body is further improved, when the memory metal recovers to the initial state at a low temperature, the heat dissipation plate is reset, and the use economy of the battery cabinet body can be improved through repeated use.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery cabinets, and in particular to an outdoor split lithium battery cabinet. Background Art

[0002] Outdoor energy storage cabinets have the characteristics of simplified infrastructure construction costs, short construction period, high degree of modularity, high environmental adaptability, easy transportation and installation, etc. They can be used for new energy peak shifting, peak shaving and valley filling, power distribution expansion, demand response, etc. They can be applied to new energy such as wind energy and solar energy to access shopping malls, communities, schools, factories, farms and other application scenarios.

[0003] However, the prior art still has the following defects when used specifically: During the operation of a lithium battery cabinet, multiple batteries are usually stored and charged and discharged at the same time. At present, although the existing battery cabinet is equipped with a monitoring system that can monitor the operating status of the battery, when an abnormal condition occurs in the battery, the existing monitoring system often only continuously observes and analyzes the abnormal condition. This continuous observation and analysis mode has serious drawbacks. Since it cannot perform power-off processing in time, it is easy to cause a delay in the power-off operation. In the use scenario of lithium batteries, the timeliness of power off is crucial. Once the power is not off in time, the abnormal condition of the battery will rapidly deteriorate, especially the lithium battery will burn due to overheating, until the entire battery cabinet is scrapped, resulting in a large economic loss.

[0004] In view of this, the present invention proposes an outdoor split lithium battery cabinet to make up for and improve the deficiencies of the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an outdoor split lithium battery cabinet to solve the technical problems raised in the above background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: an outdoor split lithium battery cabinet, including a battery cabinet body, two cabinet doors are hinged on the outer wall at the opening of the battery cabinet body, a support frame is fixedly connected to the inner wall in the middle of the battery cabinet body, a support plate is also arranged inside the battery cabinet body, a battery module is arranged on the top of the support plate, a control box is also fixedly connected to the inner wall at the bottom of the battery cabinet body, and an auxiliary disconnection mechanism is arranged on the top of the support plate for timely disconnection in case of abnormality during the charging and discharging of the battery module to ensure the safe operation of the battery cabinet body.

[0007] As a further improvement of the above scheme, the auxiliary disconnecting mechanism includes a rectangular groove opened on the inner wall of the top of the support plate, a heat sink is hinged on the inner wall of the rectangular groove close to the cabinet door, the battery module is placed on the top of the heat sink, and two two-section connecting rods are symmetrically hinged on the outer wall of the heat sink at one end away from the cabinet door, and the two ends of the two-section connecting rods away from the heat sink are hinged to the inner wall of the bottom of the rectangular groove, and two support seats are symmetrically fixedly connected to the bottom inner wall of the rectangular groove close to the two two-section connecting rods, and a heightening plate is fixedly connected between the top side walls of the two support seats, and a memory metal is fixedly connected to the top of the heightening plate, and the top of the memory metal is in contact with the outer wall of the bottom end of the battery module.

[0008] As a further improvement of the above scheme, the inner wall of the support frame is evenly provided with seven open grooves from top to bottom, the support plate is inserted into the open groove, the number of the support plate and the number of the open grooves are the same, and a total of fifteen battery modules are arranged inside the battery cabinet body and on the top of the heat sink.

[0009] As a further improvement of the above scheme, the fifteen battery modules are fixedly connected to sockets on the outer wall away from the cabinet door, and the inner wall of the battery cabinet body is fixedly connected to a cable plug. The number of cable plugs is the same as the number of sockets, and the sockets are plugged into and matched with the cable plugs.

[0010] As a further improvement of the above solution, the inner walls of the support plate on both sides of the rectangular groove are provided with guide holes, and the guide holes are connected to the inside of the rectangular groove.

[0011] As a further improvement of the above scheme, a locking mechanism is provided inside the support frame, and the locking mechanism includes a horizontal plate fixedly connected to the inner wall of the support frame, a dust tube is fixedly connected to the top of the horizontal plate, an air bag is fixedly connected to the inside of the dust tube, a pressing cover is fixedly connected to the top of the air bag, the pressing cover and the dust tube are slidably matched, the bottom of the support plate and the arc-shaped end of the top of the pressing cover are abutted against each other, a strip air bag is fixedly connected to the inner wall of the bottom of the opening groove, an air pipe is fixedly connected to the outer wall of the strip air bag, an end of the air pipe away from the strip air bag passes through the inner wall of the dust tube and is fixedly connected to the outer wall of the air bag, and the air pipe is connected to the strip air bag and the inside of the air bag.

[0012] As a further improvement of the above solution, the horizontal plate is located below the opening groove, and seven of the horizontal plates, dust cylinders, air bags, pressing covers, strip air bags and air pipes are arranged from top to bottom inside the support frame.

[0013] As a further improvement of the above scheme, an auxiliary blowing assembly is also provided on the top of the support plate, and the auxiliary blowing assembly includes an air cylinder fixedly connected to the top of the support plate away from the support frame, a piston rod is slidably connected through the inside of the air cylinder, a limiting plate is fixedly connected to the outer wall of the end of the piston rod away from the air cylinder, a supporting spring is fixedly connected to the outer wall of the limiting plate close to the air cylinder, one end of the support spring away from the limiting plate is fixedly connected to the outer wall of the end of the air cylinder, and an exhaust pipe is fixedly connected to the outer wall of the bottom end of the air cylinder.

[0014] As a further improvement of the above scheme, the exhaust pipe is connected to the inside of the air cylinder, and a plurality of the exhaust pipes are evenly arranged on the outer wall of the bottom end of the air cylinder, and the bottom openings of the plurality of exhaust pipes all face the guide hole.

[0015] As a further improvement of the above solution, an ash collecting box is plugged into the inner wall of the support plate and located on one side of the guide hole, and the ash collecting box is detachable.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) When an abnormality occurs in the battery module during use, the surface temperature rises abnormally and transfers heat to the surface of the memory metal, triggering the deformation condition of the memory metal (reaching the minimum temperature value). The internal crystal structure of the memory metal deforms with the temperature change, gradually changing from a flat shape to a long cylindrical shape with an irregular surface. The height difference caused by the deformation of the memory metal is used to lift the heat sink. Under the action of the gravity of the battery module, the battery module slides on the inclined heat sink toward the cabinet door. During the sliding, the socket and the cable plug are separated by the pulling force, disconnecting the abnormal battery module from the cable plug to prevent the temperature from rising further. At the same time, the power supply is immediately cut off to prevent current from flowing into the battery module, avoiding overheating, overcharging or short circuit, reducing heat accumulation, and reducing the risk of fire or explosion.

[0017] Among them, a two-stage connecting rod is set to cooperate with the memory metal to achieve the purpose of segmented lifting of the heat sink. When the memory metal begins to deform, it first triggers a warning signal, which can notify the battery management system to reduce the charging current of the battery module or take other preliminary cooling measures. Only when the deformation of the memory metal reaches a certain threshold will it actually trigger the disconnection of the socket and the cable plug. The graded trigger mechanism can avoid unnecessary connection interruption due to short-term temperature fluctuations, and at the same time provide the system with more response strategies, increasing the intelligence of the entire battery management system. Compared with the direct disconnection method, the segmented lifting can gradually loosen the connection between the socket and the cable plug, reducing the impact of sudden disconnection on the circuit system. On the premise of ensuring safe disconnection, it reduces damage to the battery module and related circuit equipment, thereby extending the service life of the battery module and related circuit equipment.

[0018] Finally, this method is used in the early stage of battery module abnormality, which plays a role in early detection and early intervention. A single abnormal battery module is disconnected without affecting the charging and discharging of other normal battery modules, reducing the cost of the overall shutdown of the battery cabinet body, thereby improving the operating efficiency of the battery cabinet body. Moreover, when the memory metal returns to its initial state at low temperature, the heat sink is reset, and repeated use can improve the economic efficiency of the battery cabinet body.

[0019] (2) When the support plate is pushed into the open groove, it contacts the top of the pressing cover, so that the pressing cover cooperates with the dustproof tube to press down the air bag. When the support plate is completely pushed into the open groove, the air is input into the strip air bag through the air pipe, so that the strip air bag gradually changes from the previous unsaturated state to the saturated state, and then it can play a filling and fixing role between the bottom of the support plate and the inner wall of the bottom of the open groove, so that the friction force is increased, thereby improving the stability of the support plate and preventing the support plate from shaking. At the same time, the plug-in installation method is more convenient to operate than the traditional bolt fixing method, which increases the flexibility of the use of the internal space of the battery cabinet body and meets the placement of battery modules of different height specifications.

[0020] In addition, from the perspective of maintenance, the plug-in installation can be operated more quickly when the support plate or battery module needs to be maintained or replaced, saving time and labor costs. In addition, since there is no need to reserve a large amount of bolt installation space on the battery cabinet body, the internal space layout of the battery cabinet is more compact and reasonable, which is conducive to improving the overall space utilization of the battery cabinet. At the same time, this installation method reduces safety hazards caused by problems such as loose bolts, and improves the safety of battery cabinet use.

[0021] (3) The interior of the battery cabinet is usually in a sealed state. The presence of a small amount of impurities will not have much impact on the overall operation, and frequent cleaning is not required. During maintenance, the cabinet door is opened and closed, and the air generated is discharged through the exhaust duct. The air is used to remove impurities inside the guide hole, avoiding impurities left inside the guide hole due to untimely or incomplete maintenance by the staff. This improves the permeability of the guide hole, which is conducive to accelerating heat discharge and improving the heat dissipation effect. At the same time, the use of extrusion exhaust by opening and closing the cabinet door can reduce the use of electric energy compared to directly using a fan to blow, thereby achieving the purpose of energy saving.

[0022] (4) By opening guide holes on both sides of the heat sink, the inside of the rectangular groove can be connected to the outside world through the guide holes. By improving the air circulation efficiency, the heat sink can better regulate the surrounding temperature and create a relatively stable temperature environment for the memory metal, so that the memory metal can more stably exert its characteristics during operation and reduce performance fluctuations caused by temperature changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of the internal three-dimensional structure of the battery cabinet body of the present invention; Figure 3 It is a partial three-dimensional structural cross-sectional view of the battery cabinet body of the present invention; Figure 4 It is a sectional view of the internal three-dimensional structure of the battery cabinet body of the present invention; Figure 5 It is a partial cross-sectional view of the three-dimensional structure of the relevant parts of the auxiliary disconnection mechanism of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the relevant components of the heat dissipation plate of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the relevant components of the locking mechanism of the present invention; Figure 8 It is a three-dimensional structural cross-sectional view of the relevant parts of the locking mechanism of the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of the relevant parts of the auxiliary blowing assembly of the present invention.

[0024] The numbers in the figure are: 1. battery cabinet body; 101. cabinet door; 102. cable plug; 2. support frame; 201. opening slot; 3. support plate; 301. battery module; 302. control box; 303. socket; 401. rectangular slot; 402. heat sink; 403. two-stage connecting rod; 404. support seat; 405. heightening plate; 406. memory metal; 501. guide hole; 601. horizontal plate; 602. dust cylinder; 603. air bag; 604. press cover; 605. strip air bag; 606. air pipe; 701. air cylinder; 702. piston rod; 703. limit plate; 704. support spring; 705. exhaust duct; 801. dust box. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiments of the present invention: Please refer to Figures 1 to 9As shown, an outdoor split lithium battery cabinet comprises a battery cabinet body 1, two cabinet doors 101 are hinged on the outer wall at the opening of the battery cabinet body 1, a support frame 2 is fixedly connected to the inner wall in the middle of the battery cabinet body 1, a support plate 3 is further provided inside the battery cabinet body 1, a battery module 301 is provided on the top of the support plate 3, a control box 302 is further fixedly connected to the inner wall at the bottom of the battery cabinet body 1, and an auxiliary disconnection mechanism is provided on the top of the support plate 3 for timely disconnection in case of abnormality during the charging and discharging of the battery module 301 to ensure the safe operation of the battery cabinet body 1.

[0027] The auxiliary disconnecting mechanism includes a rectangular groove 401 opened on the inner wall of the top of the support plate 3, a heat sink 402 is hinged on the inner wall of the rectangular groove 401 close to the cabinet door 101, and the battery module 301 is placed on the top of the heat sink 402. Two two-stage connecting rods 403 are symmetrically hinged on the outer wall of the heat sink 402 at one end away from the cabinet door 101. The ends of the two two-stage connecting rods 403 away from the heat sink 402 are hinged to the bottom inner wall of the rectangular groove 401, and two support seats 404 are symmetrically fixedly connected to the bottom inner wall of the rectangular groove 401 close to the two two-stage connecting rods 403. A heightening plate 405 is fixedly connected between the top side walls of the two support seats 404, and a memory metal 406 is fixedly connected to the top of the heightening plate 405. The top of the memory metal 406 contacts the outer wall of the bottom end of the battery module 301.

[0028] Among them, under the influence of the battery module 301's own gravity, the battery module 301 slides on the inclined heat sink 402 surface toward the cabinet door 101 side. During the sliding period, the socket 303 and the cable plug 102 are directly separated under the influence of the pulling force, so that the connection between the abnormal battery module 301 and the cable plug 102 is disconnected, thereby preventing the temperature from further increasing. At the same time, the power supply is immediately cut off to prevent the current from continuing to flow into the battery module 301, thereby avoiding further overheating, overcharging or short circuit. By reducing the heat accumulation inside the battery module 301, the risk of fire or explosion is reduced. This method is used in the early stage of the abnormality of the battery module 301, and serves the purpose of early detection and early intervention. A single abnormal battery module 301 is disconnected, which does not affect the charging and discharging of other normal battery modules 301, reducing the cost of the overall shutdown of the battery cabinet body 1, thereby improving the operating efficiency of the battery cabinet body 1.

[0029] Preferably, seven open grooves 201 are evenly opened on the inner wall of the support frame 2 from top to bottom, and the support plate 3 is inserted into the open grooves 201. The number of support plates 3 and the number of open grooves 201 are the same. A total of fifteen battery modules 301 are arranged inside the battery cabinet body 1 and on the top of the heat sink 402. The outer walls of the fifteen battery modules 301 on the side away from the cabinet door 101 are fixedly connected with sockets 303. The inner wall of the battery cabinet body 1 is fixedly connected with a cable plug 102. The number of cable plugs 102 is the same as the number of sockets 303. The sockets 303 are plugged into the cable plug 102. The inner walls of the support plate 3 on both sides of the rectangular groove 401 are provided with guide holes 501, and the guide holes 501 are connected to the inside of the rectangular groove 401.

[0030] Preferably, a locking mechanism is provided inside the support frame 2, and the locking mechanism includes a horizontal plate 601 fixedly connected to the inner wall of the support frame 2, a dust cylinder 602 is fixedly connected to the top of the horizontal plate 601, an air bag 603 is fixedly connected inside the dust cylinder 602, a pressing cover 604 is fixedly connected to the top of the air bag 603, the pressing cover 604 and the dust cylinder 602 are slidably matched, the bottom of the support plate 3 is in contact with the arc-shaped end of the top of the pressing cover 604, and the inner wall of the bottom of the opening groove 201 is fixedly connected to a strip of air bag 603. 05, an air pipe 606 is fixedly connected to the outer wall of the strip air bag 605, and one end of the air pipe 606 away from the strip air bag 605 passes through the inner wall of the dustproof cylinder 602 and is fixedly connected to the outer wall of the air bag 603, the air pipe 606 is connected to the strip air bag 605 and the inside of the air bag 603, the horizontal plate 601 is located below the opening groove 201, and the horizontal plate 601, the dustproof cylinder 602, the air bag 603, the pressing cover 604, the strip air bag 605 and the air pipe 606 are each provided with seven from top to bottom inside the support frame 2.

[0031] Among them, as the pressing cover 604 is pressed down by the support plate 3, the pressing cover 604 slides on the outer wall of the dustproof tube 602, and presses the airbag 603 at the same time, so that the air generated after the airbag 603 is squeezed is input into the strip air bag 605 through the air pipe 606. At this time, the support plate 3 is completely pushed into the open groove 201, and the strip air bag 605 gradually changes from the previous unsaturated state to the saturated state, and then can play a filling and fixing role between the bottom of the support plate 3 and the inner wall of the bottom of the open groove 201, so that the friction force is increased, thereby improving the stability of the support plate 3 and avoiding the support plate 3 from shaking. At the same time, the plug-in installation method is more convenient to operate than the traditional method of fixing with bolts. At the same time, this installation method reduces the safety hazards caused by problems such as loose bolts, and improves the safety of the battery cabinet body 1.

[0032] Preferably, an auxiliary blowing assembly is also provided on the top of the support plate 3, and the auxiliary blowing assembly includes an air cylinder 701 fixedly connected to the top of the support plate 3 on the side away from the support frame 2, a piston rod 702 is slidably connected to the inside of the air cylinder 701, a limiting plate 703 is fixedly connected to the outer wall of the end of the piston rod 702 away from the air cylinder 701, a supporting spring 704 is fixedly connected to the outer wall of the limiting plate 703 on the side close to the air cylinder 701, and one end of the supporting spring 704 away from the limiting plate 703 is fixedly connected to the outer wall of the end of the air cylinder 701, an exhaust pipe 705 is fixedly connected to the outer wall of the bottom end of the air cylinder 701, the exhaust pipe 705 is communicated with the inside of the air cylinder 701, and multiple exhaust pipes 705 are evenly arranged on the outer wall of the bottom end of the air cylinder 701, and the bottom openings of the multiple exhaust pipes 705 all face the guide hole 501. A dust collecting box 801 is inserted into the inner wall of the support plate 3 and located on the side of the guide hole 501, and the dust collecting box 801 is detachably arranged.

[0033] Among them, as the cabinet door 101 is closed, the piston rod 702 is pushed and slides inside the air cylinder 701, and at the same time, the support spring 704 is squeezed by the limit plate 703, and the end of the piston rod 702 away from the cabinet door 101 slides inside the air cylinder 701, which will reduce the internal space of the air cylinder 701, so that air is discharged through the exhaust duct 705. Since the bottom opening of the exhaust duct 705 faces the guide hole 501, the air can be used to remove impurities inside the guide hole 501, avoiding impurities in the guide hole 501 due to untimely or incomplete maintenance by the staff, thereby improving the permeability of the guide hole 501, which is conducive to accelerating the discharge of heat and improving the heat dissipation effect.

[0034] The following are the complete usage steps and working principles of the above embodiment: When the device is used, the staff opens the cabinet door 101 so that the opening of the battery cabinet body 1 can be opened, so that the fifteen battery modules 301 can be placed on the top of the heat sink 402 set on the surface of the support plate 3. At the same time, by plugging the socket 303 with the cable plug 102, the battery module 301 can be monitored by the control box 302 inside the battery cabinet body 1 and can be charged and discharged normally. Then, the battery module 301 is pushed deep into the battery cabinet body 1 so that the outer wall of the bottom end of the battery module 301 close to the socket 303 is in contact with the top of the memory metal 406. When the battery module 301 is in a normal charging and discharging state, its surface will emit heat, and the heat will be transferred to the heat sink 402 and the memory metal 406. The larger cross-section of the heat sink 402 is used to , so that the heat is dispersed. At the same time, the existing battery cabinet body 1 is equipped with air conditioning facilities, which can keep the battery cabinet body 1 in a constant temperature environment, so that the heat emitted by the battery module 301 can be effectively eliminated, and when the lower heat is transferred to the surface of the memory metal 406, the deformation temperature required by the memory metal 406 is not reached, so that the memory metal 406 does not deform. When the battery module 301 is abnormal during use, its surface temperature rises abnormally, so that when the higher heat is transferred to the surface of the memory metal 406, the minimum temperature value of the deformation condition of the memory metal 406 is triggered, so that the crystal structure inside the memory metal 406 gradually deforms with the change of temperature, from the initial flat shape to the irregular surface of the long tube shape. The principle of deformation is that when the temperature is lower than its phase transition temperature, the alloy is in the martensite phase, has a lower elastic modulus and softer properties, and is easily deformed. When the temperature rises above the phase transition temperature, the alloy will transform into the austenite phase and return to its original shape. In addition, the memory metal 406 is fixed to the top of the heightening plate 405, and there is a height difference between the heightening plate 405 and the bottom inner wall of the rectangular groove 401, so that the initial height of the memory metal 406 is raised, and at the same time, with the memory metal 406 in the expanded state, the memory metal 406 can better lift the heat sink 402. The two support seats 404 can support the heat sink 402 during the placement of the battery module 301, which can effectively ensure the stability of the heat sink 402 and avoid electric The battery module 301 is disturbed by the vibration caused by the unstable placement. As the heat sink 402 is lifted up near the memory metal 406, the angle between the hinge of the heat sink 402 and the bottom inner wall of the rectangular groove 401 becomes an acute angle. When the surface of the heat sink 402 is an inclined surface, the battery module 301 slides on the inclined surface of the heat sink 402 toward the cabinet door 101 under the influence of its own gravity. During the sliding, the socket 303 and the cable plug 102 are directly separated under the influence of the pulling force, so that the abnormal battery module 301 is disconnected from the cable plug 102, thereby preventing the temperature from further increasing. At the same time, the power supply is immediately cut off to prevent the current from continuing to flow into the battery module 301.Thus, further overheating, overcharging or short circuit is avoided, and the risk of fire or explosion is reduced by reducing the heat accumulation inside the battery module 301. This method is used in the early stage of the abnormality of the battery module 301, and serves the purpose of early detection and early intervention. A single abnormal battery module 301 is disconnected, which does not affect the charging and discharging of other normal battery modules 301, reducing the cost of the overall shutdown of the battery cabinet body 1, thereby improving the operating efficiency of the battery cabinet body 1. When the memory metal 406 returns to its initial state at low temperature, the heat sink 402 is reset, and repeated use can improve the economic efficiency of the battery cabinet body 1.

[0035] The two-stage connecting rod 403 is arranged to cooperate with the memory metal 406 to lift the heat sink 402 in sections. The graded trigger mechanism can avoid unnecessary connection interruption due to short-term temperature fluctuations, and also provides more response strategies for the system, increasing the intelligence of the entire battery management system. When the memory metal 406 slowly deforms and cooperates with the two-stage connecting rod 403, the connection between the socket 303 and the cable plug 102 will gradually loosen, reducing the impact of sudden disconnection on the circuit system. Under the premise of ensuring safe disconnection, it reduces damage to the battery module 301 and related circuit equipment.

[0036] Since the rectangular groove 401 is opened on the top of the support plate 3, the rectangular groove 401 is located in the area below the heat sink 402, which is prone to heat accumulation. In order to prevent heat from accidentally triggering the memory metal 406, guide holes 501 are opened on both sides of the heat sink 402. The inside of the rectangular groove 401 can be connected to the outside through the guide holes 501, so that the air circulation efficiency is improved, which not only improves the heat dissipation effect of the heat sink 402, but also improves the stability of the memory metal 406.

[0037] In addition, by placing multiple support plates 3 inside the battery cabinet body 1, the purpose of placing multiple battery modules 301 can be achieved. In order to improve the placement of battery modules 301 with different height specifications, the number of support plates 3 placed inside the battery cabinet body 1 can be reduced, and the height difference between the upper and lower adjacent support plates 3 can be adjusted. When the support plate 3 is inserted into the corresponding opening groove 201, it is first necessary to align the middle section contour of the support plate 3 with the opening of the opening groove 201, and then push it in with force so that the bottom of the support plate 3 will first contact the arc-shaped end of the top of the pressing cover 604. As the pressing cover 604 is pressed down by the support plate 3, the pressing cover 604 slides on the outer wall of the dustproof cylinder 602 and presses the airbag 603 at the same time, so that the airbag 603 is squeezed to produce The air is input into the strip air bag 605 through the air pipe 606. At this time, the support plate 3 is completely pushed into the open groove 201, and the strip air bag 605 gradually becomes a saturated state from the previous unsaturated state, and then can play a filling and fixing role between the bottom of the support plate 3 and the inner wall of the bottom of the open groove 201, so that the friction force is improved, thereby improving the stability of the support plate 3 and avoiding the shaking of the support plate 3. At the same time, the plug-in installation method is more convenient to operate than the traditional bolt fixing method, which increases the flexibility of the use of the internal space of the battery cabinet body 1 and meets the placement of battery modules 301 of different height specifications. At the same time, this installation method reduces the safety hazards caused by problems such as loose bolts, and improves the safety of the use of the battery cabinet body 1.

[0038] During the opening and closing of the cabinet door 101, the inner wall of the cabinet door 101 will contact the piston rod 702. When the cabinet door 101 is open, the support spring 704 makes the end of the piston rod 702 close to the cabinet door 101 longer than the opening of the battery cabinet body 1. As the cabinet door 101 is closed, the piston rod 702 is pushed and slides inside the gas cylinder 701. At the same time, the support spring 704 is squeezed by the limit plate 703, and the end of the piston rod 702 away from the cabinet door 101 slides inside the gas cylinder 701, which reduces the internal space of the gas cylinder 701, thereby generating air to be discharged through the exhaust pipe 705. The bottom opening of the air duct 705 faces the guide hole 501, and air can be used to remove impurities inside the guide hole 501, avoiding impurities remaining inside the guide hole 501 due to untimely or incomplete maintenance by the staff, thereby improving the permeability of the guide hole 501, which is beneficial to accelerate the heat discharge and improve the heat dissipation effect. At the same time, the switch cabinet door 101 is used to bring about an extrusion exhaust method. Compared with directly using a fan to blow, the use of electrical energy can be reduced, thereby achieving the purpose of energy saving. In addition, the impurities blown out by the air will fall into the dust box 801, and the dust box 801 is detachable, so that it is convenient for the staff to handle it regularly and uniformly.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor split lithium battery cabinet, comprising a battery cabinet body (1), two cabinet doors (101) being hingedly connected to the outer wall at the opening of the battery cabinet body (1), a support frame (2) being fixedly connected to the inner wall at the middle of the battery cabinet body (1), a support plate (3) being further arranged inside the battery cabinet body (1), a battery module (301) being arranged on the top of the support plate (3), and a control box (302) being further fixedly connected to the inner wall at the bottom of the battery cabinet body (1), characterized in that: An auxiliary disconnection mechanism is provided on the top of the support plate (3) for timely disconnection when an abnormality occurs during the charging and discharging of the battery module (301) to ensure safe operation of the battery cabinet body (1).

2. The outdoor split lithium battery cabinet according to claim 1 is characterized in that: The auxiliary disconnection mechanism comprises a rectangular groove (401) formed on the inner wall of the top of the support plate (3); a heat sink (402) is hingedly connected to the inner wall of the rectangular groove (401) on the side close to the cabinet door (101); the battery module (301) is placed on the top of the heat sink (402); and two two-section connecting rods (403) are symmetrically hingedly connected to the outer wall of the heat sink (402) at one end away from the cabinet door (101); the two two-section connecting rods (403) are away from the heat sink (402). 02) are hinged to the bottom inner wall of the rectangular groove (401); two support seats (404) are symmetrically fixedly connected to the bottom inner wall of the rectangular groove (401) on one side close to the two two-section connecting rods (403); a heightening plate (405) is fixedly connected between the top side walls of the two support seats (404); a memory metal (406) is fixedly connected to the top of the heightening plate (405); and the top of the memory metal (406) is in contact with the bottom outer wall of the battery module (301).

3. An outdoor split lithium battery cabinet according to claim 2, characterized in that: The inner wall of the support frame (2) is evenly provided with seven opening grooves (201) from top to bottom, the support plate (3) is plugged into the inside of the opening grooves (201), the number of the support plate (3) and the number of the opening grooves (201) are the same, and a total of fifteen battery modules (301) are provided inside the battery cabinet body (1) and on the top of the heat sink (402).

4. The outdoor split lithium battery cabinet according to claim 3 is characterized in that: The fifteen battery modules (301) are all fixedly connected to sockets (303) on the outer walls on the side away from the cabinet door (101), and the inner wall of the battery cabinet body (1) is fixedly connected to a cable plug (102), the number of the cable plugs (102) being the same as the number of the sockets (303), and the sockets (303) are pluggably matched with the cable plugs (102).

5. The outdoor split lithium battery cabinet according to claim 2 is characterized in that: The inner walls of the support plate (3) on both sides of the rectangular groove (401) are provided with flow guide holes (501), and the flow guide holes (501) are connected to the inside of the rectangular groove (401).

6. The outdoor split lithium battery cabinet according to claim 3 is characterized in that: The support frame (2) is provided with a locking mechanism inside, the locking mechanism comprising a horizontal plate (601) fixedly connected to the inner wall of the support frame (2), a dustproof cylinder (602) fixedly connected to the top of the horizontal plate (601), an airbag (603) fixedly connected to the inside of the dustproof cylinder (602), a pressing cover (604) fixedly connected to the top of the airbag (603), the pressing cover (604) slidably cooperates with the dustproof cylinder (602), and the bottom of the support plate (3) is fixedly connected to the dustproof cylinder (602). A strip-shaped air bag (605) is fixedly connected to the inner wall of the bottom of the opening groove (201) so as to abut against the arc-shaped end of the top of the pressing cover (604), and an air pipe (606) is fixedly connected to the outer wall of the strip-shaped air bag (605). One end of the air pipe (606) away from the strip-shaped air bag (605) passes through the inner wall of the dustproof cylinder (602) and is fixedly connected to the outer wall of the air bag (603), and the air pipe (606) is in communication with the strip-shaped air bag (605) and the inside of the air bag (603).

7. An outdoor split lithium battery cabinet according to claim 6, characterized in that: The transverse plate (601) is located below the opening groove (201), and seven transverse plates (601), dustproof cylinders (602), air bags (603), pressing covers (604), strip-shaped air bags (605) and air pipes (606) are arranged from top to bottom inside the support frame (2).

8. The outdoor split lithium battery cabinet according to claim 5, characterized in that: An auxiliary blowing assembly is also provided at the top of the support plate (3), and the auxiliary blowing assembly comprises an air cylinder (701) fixedly connected to the top of the support plate (3) away from the support frame (2); a piston rod (702) is slidably connected to the inside of the air cylinder (701); a limiting plate (703) is fixedly connected to the outer wall of one end of the piston rod (702) away from the air cylinder (701); a supporting spring (704) is fixedly connected to the outer wall of the limiting plate (703) on the side close to the air cylinder (701); one end of the supporting spring (704) away from the limiting plate (703) is fixedly connected to the outer wall of the end of the air cylinder (701); and an exhaust pipe (705) is fixedly connected to the outer wall of the bottom end of the air cylinder (701).

9. The outdoor split lithium battery cabinet according to claim 8, characterized in that: The exhaust pipe (705) is in communication with the interior of the air cylinder (701), and a plurality of the exhaust pipes (705) are evenly arranged on the outer wall of the bottom end of the air cylinder (701), and the bottom openings of the plurality of exhaust pipes (705) all face the guide hole (501).

10. An outdoor split lithium battery cabinet according to claim 9, characterized in that: An ash collecting box (801) is plugged into the inner wall of the support plate (3) and located on one side of the guide hole (501); the ash collecting box (801) is detachably arranged.

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