阅读说明：本技术 一种用于电动汽车的组合式蓄电池 (Combined storage battery for electric automobile ) 是由 史元泉 于 2021-08-09 设计创作，主要内容包括：本发明公开了一种用于电动汽车的组合式蓄电池,具体涉及电车蓄电池技术领域,包括防护外壳,所述防护外壳的背面通过两个合页与盖板铰接,所述盖板的上表面开设有密封腔。本发明通过采用导热筒、导热板、中间板、导热横杆、导热触板、隔热板、真空隔热腔和隔热连接筒,避免外界高温传递至蓄电池组件处,在防护外壳内部温度高于外界温度时,第一空腔内压力大于第二空腔,此时导热板带动导热横杆和导热触板远离第一空腔移动,此时导热触板、导热板、导热筒和中间板组成导热通路,实现导热过程,本装置可避免外界温度高温情况下的低效散热过程,降低外界高温对防护外壳内部的影响,选择性的隔断导热通道,本装置具有较好的防护和封闭效果。(The invention discloses a combined storage battery for an electric automobile, and particularly relates to the technical field of storage batteries for electric automobiles. According to the invention, the heat conduction cylinder, the heat conduction plate, the intermediate plate, the heat conduction cross rod, the heat conduction contact plate, the heat insulation plate, the vacuum heat insulation cavity and the heat insulation connecting cylinder are adopted, so that the external high temperature is prevented from being transmitted to the storage battery assembly, when the internal temperature of the protective shell is higher than the external temperature, the pressure in the first cavity is higher than that in the second cavity, the heat conduction plate drives the heat conduction cross rod and the heat conduction contact plate to move away from the first cavity, and the heat conduction contact plate, the heat conduction cylinder and the intermediate plate form a heat conduction passage at the moment, so that the heat conduction process is realized.)

1. A combined accumulator for electric vehicles, comprising a protective casing (1), characterized in that: the back of the protective shell (1) is hinged to the cover plate (5) through two hinges (4), a sealing cavity (6) is formed in the upper surface of the cover plate (5), two first piston cylinders (9) are arranged on the back of the inner wall of the protective shell (1), sealing connecting sleeves (13) are arranged on the upper surface and the lower surface of each first piston cylinder (9), the inner walls of the two sealing connecting sleeves (13) are provided with the same moving rod (11), the top end of each moving rod (11) is fixedly connected with the lower surface of the corresponding contact plate (10), a first piston plate (12) is arranged on the outer surface of each moving rod (11), the outer surface of each first piston plate (12) is in lap joint with the inner wall of the corresponding first piston cylinder (9), and the bottom end of each moving rod (11) is fixedly connected with the upper surface of the corresponding press plate (15);

the lower surface of the pressing plate (15) is fixedly connected with the top ends of the two vertical rods (16), the bottom ends of the two vertical rods (16) are fixedly connected with the upper surface of the same second piston plate (19), the outer surface of the second piston plate (19) is in lap joint with the inner wall of a piston frame (17), the lower surface of the piston frame (17) is fixedly connected with the upper surface of an object placing plate (22), the lower surface of the object placing plate (22) is fixedly connected with the lower surface of the inner wall of the protective shell (1), a plurality of object placing grooves (23) are formed in the upper surface of the object placing plate (22), second piston cylinders (26) are clamped to the inner wall of the object placing grooves (23), the upper surfaces of the plurality of second piston cylinders (26) are communicated with the lower surface of the piston frame (17) through second connecting pipes (25), the outer surface of the first piston cylinder (9) is communicated with one end of the first connecting pipe (14), the other ends of the two first connecting pipes (14) are communicated with the outer surface of the same sealing air bag (7), and the sealing air bag (7) is arranged on the upper surface of the protective shell (1);

the surface of protecting sheathing (1) is provided with a plurality of intermediate floors (3), be provided with first cavity (28) and second cavity (29) in intermediate floor (3), joint has heat-conducting section of thick bamboo (31) in first cavity (28), the surface overlap joint of heat-conducting section of thick bamboo (31) inner wall and heat-conducting plate (33), the right flank of heat-conducting plate (33) and the left end fixed connection of heat-conducting horizontal pole (34), the surface of heat-conducting horizontal pole (34) is provided with heat conduction touch panel (35), the right-hand member of heat-conducting horizontal pole (34) and the left end fixed connection of thermal-insulated pole (36), the right-hand member of thermal-insulated pole (36) and the left surface fixed connection of heat insulating board (38), the surface of heat insulating board (38) and the inner wall overlap joint of thermal-insulated connecting cylinder (39).

2. The assembled secondary battery for electric vehicles according to claim 1, wherein: the heat insulation connecting cylinder (39) is clamped on the inner wall of the second cavity (29), a vacuum heat insulation cavity (30) is arranged in the middle plate (3), and the heat conduction touch plate (35) is arranged in the vacuum heat insulation cavity (30).

3. The assembled secondary battery for electric vehicles according to claim 2, wherein: the right side face of the heat conduction touch plate (35) is fixedly connected with the left ends of the two second elastic assemblies (37), and the right ends of the second elastic assemblies (37) are fixedly connected with the right side face of the inner wall of the vacuum heat insulation cavity (30).

4. The assembled secondary battery for electric vehicles according to claim 1, wherein: the upper surface of the heat conducting cylinder (31) is provided with a connecting hole (32), and the connecting hole (32) is communicated with the first cavity (28).

5. The assembled secondary battery for electric vehicles according to claim 1, wherein: the lower surface of the inner wall of the cover plate (5) is fixedly connected with the lower surfaces of the two pressing blocks (8), the positions of the pressing blocks (8) correspond to the position of the contact plate (10), and the same locking component (2) is arranged on the front surface of the protective shell (1) and the back surface of the cover plate (5).

6. The assembled secondary battery for electric vehicles according to claim 1, wherein: the connecting position of the first connecting pipe (14) and the first piston cylinder (9) is positioned at the lower side of the first piston plate (12), and the sealing cavity (6) corresponds to the sealing air bag (7).

7. The assembled secondary battery for electric vehicles according to claim 1, wherein: put the right flank of thing groove (23) inner wall and the right flank fixed connection of rubber pad (24), the lower surface of putting thing groove (23) inner wall sets up battery pack (40), the surface and the piston splint (27) overlap joint of battery pack (40), piston splint (27) set up in second piston cylinder (26).

8. The assembled secondary battery for electric vehicles according to claim 1, wherein: the right side surface of the middle plate (3) is provided with a plurality of elastic heat conducting rods (21), the lower surface of the second piston plate (19) is fixedly connected with the top end of the first elastic component (20), and the bottom end of the first elastic component (20) is fixedly connected with the lower surface of the inner wall of the piston frame (17).

9. The assembled secondary battery for electric vehicles according to claim 1, wherein: the surface and the movable sleeve (18) inner wall overlap joint of montant (16), movable sleeve (18) joint is at the upper surface of piston frame (17), the front of protective housing (1) is provided with BMS control module (41).

Technical Field

The invention relates to the technical field of storage batteries of electric vehicles, in particular to a combined storage battery for an electric vehicle.

Background

The trolley-bus is in order to guarantee output voltage and drive power, the part adopts the battery series-parallel mode to realize, guarantee output power and the required power of vehicle keep unanimous simultaneously for the energy can be saved, the part adopts the output rate of BMS control system control battery, prevent that overcharge and overdischarge from appearing in the battery, guarantee battery life, but current battery part adopts the forced air cooling mode to realize when using, under the higher condition of outdoor ambient temperature, when the forced air cooling mode accelerates the air circulation, only realize the high-temperature gas circulation in the environment, the unable isolated transmission of heat of hot-air self, the cooling effect is not ideal enough, and the dustproof of self of battery is not ideal enough with the closed effect, lead to whole dustproof performance not ideal enough, consequently, need a combination formula battery who is used for electric automobile to solve above-mentioned problem.

Disclosure of Invention

In order to overcome the above defects in the prior art, the present invention provides a combined storage battery for an electric vehicle, and the technical problems to be solved by the present invention are: under the higher condition of outdoor ambient temperature, when the forced air cooling mode quickened the air circulation, the gaseous circulation of high temperature in the environment can be controlled, and the cooling effect is ideal inadequately, and the dustproof of the self of battery and the sealed effect is ideal inadequately, leads to the not ideal problem of whole dustproof performance.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a combination formula battery for electric automobile, includes protective housing, protective housing's the back is articulated with the apron through two hinges, sealed chamber has been seted up to the upper surface of apron, protective housing inner wall's the back is provided with two first piston barrels, the upper surface and the lower surface of first piston barrel all are provided with sealed adapter sleeve, two sealed adapter sleeve inner wall is provided with same carriage release lever, the top of carriage release lever and the lower fixed surface of contact plate are connected, the surface of carriage release lever is provided with first piston plate, the surface and the first piston barrel inner wall overlap joint of first piston plate, the bottom of carriage release lever and the last fixed surface of clamp plate are connected.

The lower surface of clamp plate and the top fixed connection of two montants, two the bottom of montant is connected with the last fixed surface of same second piston board, the surface and the piston frame inner wall overlap joint of second piston board, the lower surface of piston frame is connected with the last fixed surface who puts the thing board, the lower surface of putting the thing board is connected with the lower fixed surface of protective housing inner wall, put the upper surface of thing board and seted up a plurality of thing grooves of putting, it has a second piston section of thick bamboo to put thing groove inner wall joint, and the upper surface of a plurality of second piston sections of thick bamboo is linked together through the lower surface of second connecting pipe with the piston frame, the surface of a first piston section of thick bamboo is linked together with the one end of first connecting pipe, and the other end of two first connecting pipes is linked together with the surface of same air-tight bag, air-tight bag sets up the upper surface at protective housing.

The surface of protective housing is provided with a plurality of intermediate floors, be provided with first cavity and second cavity in the intermediate floor, the joint has a heat-conducting section of thick bamboo in the first cavity, the surface overlap joint of heat-conducting section of thick bamboo inner wall and heat-conducting plate, the right flank of heat-conducting plate and the left end fixed connection of heat-conducting horizontal pole, the surface of heat-conducting horizontal pole is provided with the heat conduction touch panel, the right-hand member of heat-conducting horizontal pole and the left end fixed connection of thermal-insulated pole, the right-hand member of thermal-insulated pole and the left surface fixed connection of heat insulating board, the surface of heat insulating board and the inner wall overlap joint of thermal-insulated connecting cylinder.

As a further scheme of the invention: the heat insulation connecting cylinder is clamped on the inner wall of the second cavity, a vacuum heat insulation cavity is arranged in the middle plate, and the heat conduction touch plate is arranged in the vacuum heat insulation cavity.

As a further scheme of the invention: the right side face of the heat conduction touch plate is fixedly connected with the left ends of the two second elastic assemblies, and the right ends of the second elastic assemblies are fixedly connected with the right side face of the inner wall of the vacuum heat insulation cavity.

As a further scheme of the invention: the upper surface of the heat conduction cylinder is provided with a connecting hole, and the connecting hole is communicated with the first cavity.

As a further scheme of the invention: the lower surface of the inner wall of the cover plate is fixedly connected with the lower surfaces of the two pressing blocks, the positions of the pressing blocks correspond to the positions of the contact plates, and the same locking component is arranged on the front surface of the protective shell and the back surface of the cover plate.

As a further scheme of the invention: the connecting position of the first connecting pipe and the first piston cylinder is positioned at the lower side of the first piston plate, and the sealing cavity corresponds to the sealing air bag.

As a further scheme of the invention: the right flank of putting thing inslot wall and the right flank fixed connection of rubber pad, the lower surface of putting thing inslot wall sets up battery pack, battery pack's surface and piston splint overlap joint, piston splint set up in the second piston cylinder.

As a further scheme of the invention: the right side of the middle plate is provided with a plurality of elastic heat conducting rods, the lower surface of the second piston plate is fixedly connected with the top end of the first elastic assembly, and the bottom end of the first elastic assembly is fixedly connected with the lower surface of the inner wall of the piston frame.

As a further scheme of the invention: the outer surface of the vertical rod is in lap joint with the inner wall of the movable sleeve, the movable sleeve is connected to the upper surface of the piston frame in a clamping mode, and the front face of the protective shell is provided with a BMS control module.

The invention has the beneficial effects that:

1. the invention adopts the heat conducting cylinder, the heat conducting plate, the middle plate, the heat conducting cross rod, the heat conducting touch plate, the heat insulating plate, the vacuum heat insulating cavity and the heat insulating connecting cylinder, when the external temperature is higher than the internal temperature of the protective shell, the pressure in the second cavity is larger than that in the first cavity, the heat conducting touch plate is far away from the second cavity, the protective shell keeps good heat insulating performance, the external high temperature is prevented from being transmitted to the storage battery component, when the internal temperature of the protective shell is higher than the external temperature, the pressure in the first cavity is larger than that in the second cavity, the heat conducting plate drives the heat conducting cross rod and the heat conducting touch plate to move away from the first cavity, the heat conducting touch plate, the heat conducting cylinder and the middle plate form a heat conducting passage, the heat conducting process is realized, the device can avoid the low-efficiency heat radiating process under the condition of the external high temperature, reduce the influence of the external high temperature on the internal part of the protective shell, and selectively block the heat conducting passage, the device has better protection and sealing effects;

2. according to the invention, the pressing block, the contact plate, the first piston cylinder, the sealing cavity, the sealing air bag and the piston clamping plate are arranged, the contact plate and the first piston plate are extruded by the pressing block to move downwards in the closing process of the cover plate, the moving rod extrudes the pressing plate and the second piston plate to move downwards at the moment, air in the first piston cylinder is transferred into the sealing air bag, the sealing air bag expands and enters the sealing cavity, gas in the piston frame is transferred into a plurality of second piston cylinders, the piston clamping plate is clamped on the surface of the storage battery assembly, when the cover plate is not closed, the assembly adjustment of the storage battery assembly can be facilitated, when the cover plate is closed, the clamping and positioning of the storage battery assembly can be automatically completed, and meanwhile, the expansion sealing process of the sealing air bag is realized;

3. according to the invention, the first elastic component is arranged, and the first elastic component can play a role in buffering the downward movement of the first piston plate and the contact plate, so that the condition that the cover plate collides with the protective shell violently when the cover plate is turned over and combined downwards is avoided, and the smooth and stable operation of the closing process of the cover plate is ensured.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a perspective structural view of the protective housing of the present invention;

FIG. 3 is a perspective view of the middle plate according to the present invention;

FIG. 4 is a schematic cross-sectional view of the middle plate of the present invention;

FIG. 5 is a schematic perspective view of a heat conducting tube according to the present invention;

FIG. 6 is a schematic perspective view of a heat conducting cross bar according to the present invention;

FIG. 7 is a schematic perspective view of a first piston cylinder according to the present invention;

FIG. 8 is a perspective view of the movable rod of the present invention;

FIG. 9 is a perspective view of a second piston plate of the present invention;

FIG. 10 is a perspective view of a second piston cylinder according to the present invention;

in the figure: 1. a protective housing; 2. a latch assembly; 3. a middle plate; 4. a hinge; 5. a cover plate; 6. sealing the cavity; 7. sealing the air bag; 8. a pressing block; 9. a first piston cylinder; 10. a contact plate; 11. a travel bar; 12. a first piston plate; 13. sealing the connecting sleeve; 14. a first connecting pipe; 15. pressing a plate; 16. a vertical rod; 17. a piston frame; 18. a first movable sleeve; 19. a second piston plate; 20. a first elastic member; 21. an elastic heat conducting rod; 22. a storage plate; 23. a storage groove; 24. a rubber pad; 25. a second connecting pipe; 26. a second piston cylinder; 27. a piston clamping plate; 28. a first cavity; 29. a second cavity; 30. a vacuum insulation chamber; 31. a heat conducting tube; 32. connecting holes; 33. a heat conducting plate; 34. a thermally conductive cross-bar; 35. a thermally conductive touch plate; 36. a heat insulating rod; 37. a second elastic member; 38. a heat insulation plate; 39. a thermally insulating connecting cylinder; 40. a battery assembly; 41. and a BMS control module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-10, the present invention provides a combined storage battery for an electric vehicle, which comprises a protective housing 1, wherein the back surface of the protective housing 1 is hinged to a cover plate 5 through two hinges 4, a sealing cavity 6 is formed on the upper surface of the cover plate 5, two first piston cylinders 9 are arranged on the back surface of the inner wall of the protective housing 1, the expansion of the sealing airbag 7 is automatically controlled by arranging the first piston cylinders 9, a first connecting pipe 14 and a first piston plate 12, when the cover plate 5 is closed, the first piston plate 12 can be extruded to move downwards by the self gravity of the cover plate 5, the first piston plate 12 extrudes gas in the first piston cylinders 9 to enter the sealing airbag 7, sealing connecting sleeves 13 are arranged on the upper surface and the lower surface of the first piston cylinders 9, the same moving rod 11 is arranged on the inner walls of the two sealing connecting sleeves 13, and by arranging the moving rod 11 and the sealing connecting sleeves 13, the sealing connecting sleeve 13 can ensure that the moving rod 11 can ensure air tightness when moving in the first piston cylinder 9, and the moving rod 11 can simultaneously control the movement of the pressing plate 15 and the second piston plate 19 while moving, the top end of the moving rod 11 is fixedly connected with the lower surface of the contact plate 10, the outer surface of the moving rod 11 is provided with the first piston plate 12, the outer surface of the first piston plate 12 is in lap joint with the inner wall of the first piston cylinder 9, and the bottom end of the moving rod 11 is fixedly connected with the upper surface of the pressing plate 15.

The lower surface of the pressing plate 15 is fixedly connected with the top ends of the two vertical rods 16, the bottom ends of the two vertical rods 16 are fixedly connected with the upper surface of the same second piston plate 19, the piston frame 17, the second connecting pipe 25, the second piston cylinder 26 and the piston clamping plates 27 are arranged, the second piston plate 19 extrudes gas in the piston frame 17 into the second piston cylinder 26 while moving downwards under pressure, a plurality of piston clamping plates 27 can be simultaneously controlled to be close to and tightly attached to the surface of the storage battery assembly 40, so that the storage battery assembly 40 is clamped and limited, the outer surface of the second piston plate 19 is lapped with the inner wall of the piston frame 17, the lower surface of the piston frame 17 is fixedly connected with the upper surface of the object placing plate 22, the lower surface of the object placing plate 22 is fixedly connected with the lower surface of the inner wall of the protective shell 1, the upper surface of the object placing plate 22 is provided with a plurality of object placing grooves 23, the inner wall of the object placing groove 23 is clamped with the second piston cylinder 26, the upper surfaces of the second piston cylinders 26 are communicated with the lower surface of the piston frame 17 through second connecting pipes 25, the outer surface of the first piston cylinder 9 is communicated with one end of the first connecting pipe 14, the other ends of the two first connecting pipes 14 are communicated with the outer surface of the same sealing air bag 7, the sealing air bag 7 is arranged on the upper surface of the protective shell 1, the sealing cavity 6 and the sealing air bag 7 are arranged, the sealing cavity 6 corresponds to the sealing air bag 7, the sealing air bag 7 can be smoothly extruded into the sealing cavity 6 after being inflated and expanded, and the sealing of the joint between the protective shell 1 and the cover plate 5 is realized.

The outer surface of the protective shell 1 is provided with a plurality of intermediate plates 3, the intermediate plates 3 are heat-insulating materials by arranging the intermediate plates 3, partial heat-conducting materials are arranged in the intermediate plates 3, when the heat-conducting contact plates 35 are not contacted with the heat-conducting materials, the vacuum heat-insulating cavity 30 and the intermediate plates 3 integrally form a complete heat-insulating layer, the storage battery assembly 40 in the protective shell 1 is prevented from being influenced by external high temperature, after the heat-conducting contact plates 35 are contacted with the heat-conducting materials, the heat-conducting cylinder 31, the heat-conducting cross rods 34, the heat-conducting plate 33 and the heat-conducting materials can form a complete heat-conducting passage, the process of leading out heat in the protective shell 1 is realized, the intermediate plates 3 are internally provided with a first cavity 28 and a second cavity 29, the heat-conducting cylinder 31 is clamped in the first cavity 28, the inner wall of the heat-conducting cylinder 31 is lapped with the outer surface of the heat-conducting plate 33, the right side surface of the heat-conducting plate 33 is fixedly connected with the left side surface of the heat-conducting cross rods 34, the outer surface of the heat-conducting cross rods 34 is provided with the heat-conducting contact plates 35, the right end of heat conduction horizontal pole 34 and the left end fixed connection of insulating bar 36 through setting up heat insulating board 38, insulating bar 36 and thermal-insulated connecting cylinder 39, can avoid heat conduction condition to appear through insulating bar 36 in heat conduction horizontal pole 34, guarantees the completeness of thermal-insulated environment, and the right end of insulating bar 36 and the left surface fixed connection of heat insulating board 38, the surface of heat insulating board 38 and the inner wall overlap joint of thermal-insulated connecting cylinder 39.

As shown in fig. 4, the heat insulation connecting tube 39 is fastened to the inner wall of the second cavity 29, the vacuum heat insulation chamber 30 is provided in the intermediate plate 3, and the heat conductive contact plate 35 is provided in the vacuum heat insulation chamber 30.

As shown in fig. 4, the right side surface of the heat conductive contact plate 35 is fixedly connected to the left ends of the two second elastic members 37, and the right end of the second elastic member 37 is fixedly connected to the right side surface of the inner wall of the vacuum insulation chamber 30.

As shown in fig. 4 and 5, the upper surface of the heat conducting cylinder 31 is provided with a connecting hole 32, the connecting hole 32 is communicated with the first cavity 28, the heat conducting cylinder 31 is communicated with the first cavity 28 through the connecting hole 32 by arranging the heat conducting cylinder 31, the connecting hole 32, the first cavity 28, the second cavity 29 and the heat insulating connecting cylinder 39, the pressure of the pressure greater bodies of the first cavity 28 and the second cavity 29 is now applied to the heat conducting plate 33 and the heat insulating plate 38, and the comparison process of the internal temperature and the external temperature of the protective housing 1 can be realized.

As shown in fig. 1, the lower surface of the inner wall of the cover plate 5 is fixedly connected with the lower surfaces of two pressing blocks 8, the positions of the pressing blocks 8 correspond to the positions of the contact plates 10, and the same locking assembly 2 is arranged on the front surface of the protective housing 1 and the back surface of the cover plate 5.

As shown in fig. 7 and 8, the connection position of the first connection pipe 14 to the first piston cylinder 9 is located on the lower side of the first piston plate 12, and the seal chamber 6 corresponds to the seal bladder 7.

As shown in fig. 7 and 10, the right side surface of the inner wall of the storage tank 23 is fixedly connected with the right side surface of the rubber pad 24, the battery assembly 40 is arranged on the lower surface of the inner wall of the storage tank 23, the outer surface of the battery assembly 40 is overlapped with the piston clamping plate 27, and the piston clamping plate 27 is arranged in the second piston cylinder 26.

As shown in fig. 3, the right side surface of the middle plate 3 is provided with a plurality of elastic heat conducting rods 21, the lower surface of the second piston plate 19 is fixedly connected with the top end of the first elastic component 20, the bottom end of the first elastic component 20 is fixedly connected with the lower surface of the inner wall of the piston frame 17, by providing the first elastic component 20, the first elastic component 20 can buffer the downward movement of the first piston plate 12 and the contact plate 10, thereby avoiding the severe collision with the protective housing 1 when the cover plate 5 is turned over and combined downward, ensuring the smooth and stable closing process of the cover plate 5, after the cover plate 5 is separated from the protective housing 1, applying an upward acting force to the second piston plate 19, extracting the gas in the second piston cylinder 26 to the piston frame 17, and controlling the piston clamping plate 27 to be automatically separated from the storage battery assembly 40.

As shown in fig. 1 and 9, the outer surface of the vertical rod 16 is overlapped with the inner wall of the movable sleeve 18, the movable sleeve 18 is clamped on the upper surface of the piston frame 17, the movable sleeve 18 is arranged to guide the movement of the vertical rod 16, the smooth and stable movement process of the vertical rod 16 and the second piston plate 19 is ensured, and the BMS control module 41 is arranged on the front surface of the protective housing 1.

The working principle of the invention is as follows: when the device is used, the storage battery assembly 40 is placed in the storage groove 23, then the cover plate 5 is controlled to turn over forwards, at this time, the pressing block 8 presses the contact plate 10 and the moving rod 11 to move downwards, at the same time, the moving rod 11 drives the first piston plate 12 and the second piston plate 19 to move downwards, the first piston plate 12 moves downwards and simultaneously presses the gas in the first piston cylinder 9 into the sealed air bag 7, the sealed air bag 7 expands and enters the sealed cavity 6, at the same time, the second piston plate 19 moves downwards and presses the gas in the piston frame 17 into a plurality of second piston cylinders 26, at this time, the piston clamping plates 27 are tightly clamped on the surface of the storage battery assembly 40, when the cover plate 5 is in contact with the protective shell 1, the locking between the cover plate 5 and the protective shell 1 is completed through the locking assembly 2, when the external temperature is higher than the internal temperature of the protective shell 1, at this time, the pressure in the second cavity 29 is higher than that in the first cavity 28, at this moment, the heat conducting contact plate 35 is far away from the heat insulation connecting cylinder 39, the heat insulation layers are formed by the vacuum heat insulation cavities 30 and the protective shell 1, when the internal temperature of the protective shell 1 is higher than the external temperature, the pressure in the first cavity 28 is larger than the pressure in the second cavity 29, meanwhile, the heat conducting plate 33 and the heat conducting contact plate 35 are close to the heat insulation connecting cylinder 39 to move, when the heat conducting contact plate 35 is in contact with the vacuum heat insulation cavities 30, the heat conducting cylinder 31, the heat conducting plate 33, the heat conducting cross rod 34 and the heat conducting contact plate 35 form a heat conducting passage, and the heat conducting and radiating process is achieved.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.