Mounting shell structure of spliced battery pack

Abstract

The invention discloses a spliced battery pack mounting shell structure which comprises a bottom plate, a shell is fixedly connected to the exterior of the bottom plate, a top cover assembly is hinged to one end of the top of the shell, an alarm assembly is fixedly connected to the top of the top cover assembly, a fire extinguishing assembly is fixedly mounted at the bottom of the top cover assembly, and an adjusting assembly is fixedly mounted on the inner wall of one side of the shell. A buffer assembly is fixedly installed on the inner wall of the other side of the shell, a splicing assembly is fixedly installed on the top of the bottom plate, a dismounting and mounting assembly is fixedly installed on the top of the splicing assembly, and a battery assembly is fixedly installed on the top of the dismounting and mounting assembly. When the battery units of the battery pack need to be adjusted, the number of the battery units can be increased or decreased through a base insertion mode, so that the battery pack is adjusted simply, the battery packs with different unit numbers can be clamped and fixed through the adjusting assembly, and accidents are avoided through the alarm assembly and the fire extinguishing assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack mounting shells, and in particular to a spliced ​​battery pack mounting shell structure. Background Art

[0002] The spliced ​​battery pack mounting shell structure is a shell structure used to fix, protect and integrate spliced ​​battery packs. Its design must take into account multiple requirements such as the convenience of battery installation, structural stability and safety. It is usually composed of a shell body, a battery fixing component and a heat dissipation channel. Multiple batteries are connected into one piece through connecting wires, and usually they need to be placed in the battery shell to ensure the stability of the battery pack installation and to be able to fix the battery pack. The capacity of the battery pack is generally determined by the number of batteries.

[0003] However, the existing spliced ​​battery pack installation shell structure has different power levels after different batteries are docked. The battery cells stored inside the current battery pack shell are usually fixed, which can only ensure the installation of the designed number of batteries. It is relatively troublesome to adjust the number of battery cells later. In addition, the existing spliced ​​battery pack installation shell structure cannot provide early warning of danger when thermal runaway occurs in the battery pack, and cannot handle the battery before thermal runaway occurs, which can easily cause accidents.

[0004] Therefore, it is necessary to provide a spliced ​​battery pack mounting shell structure. Summary of the Invention

[0005] The purpose of the present invention is to provide a spliced ​​battery pack mounting shell structure to solve the problem of the existing spliced ​​battery pack mounting shell structure proposed in the above background technology. The power of different batteries after docking is also different. The battery cells stored inside the current battery pack shell are usually fixed, which can only ensure the installation of the designed number of batteries. It is more troublesome to adjust the number of battery cells later. In addition, the existing spliced ​​battery pack mounting shell structure cannot provide early warning of danger when thermal runaway occurs in the battery pack, and cannot process the battery before thermal runaway occurs, which easily causes accidents.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a spliced ​​battery pack mounting shell structure, comprising a base plate, the outside of the base plate is fixedly connected to an outer shell, one end of the top of the outer shell is hinged to a top cover assembly, the top of the top cover assembly is fixedly connected to an alarm assembly for preventing thermal runaway, the bottom of the top cover assembly is fixedly installed with a fire extinguishing assembly, the inner wall of one side of the outer shell is fixedly installed with an adjustment assembly, the inner wall of the other side of the outer shell is fixedly installed with a buffer assembly, the top of the base plate is fixedly installed with a splicing assembly, the top of the splicing assembly is fixedly installed with a disassembly assembly, and the top of the disassembly assembly is fixedly installed with a battery assembly.

[0007] Preferably, the top cover assembly includes a top plate and two connecting seats, the top plate is hinged at one end of the top of the shell, the two connecting seats are fixedly mounted on the front of the shell, two connecting blocks are fixedly mounted on one side of the top plate, and the connecting blocks and the connecting seats are fixedly connected by screws.

[0008] Preferably, the splicing assembly includes multiple bases, two plug-in blocks are fixedly installed on one side of the base, two plug-in female grooves are provided on the other side of the base, and limiting holes are provided at both ends of the base. The corresponding plug-in female grooves are slidably connected to the plug-in sub-blocks. The battery pack can flexibly increase or decrease the number of units through splicing, so that the battery pack can flexibly adapt to diverse needs.

[0009] Preferably, the disassembly and assembly component includes multiple inner ring blocks, and the multiple inner ring blocks are respectively fixedly mounted on the two ends of the top of multiple bases, one end of the inner ring block is provided with a sliding groove, and the other end of the inner ring block is provided with a socket, the outer ring block is slidably mounted on the outside of the inner ring block, and the internal thread of the outer ring block is connected to a plug rod, one end of the plug rod is fixedly mounted with a second knob, and the other end of the second knob is slidably connected to the socket. There is no need to disassemble the entire battery pack, only the damaged unit needs to be located and replaced individually, which greatly shortens the maintenance time.

[0010] Preferably, the battery assembly includes multiple battery cells, the electrodes of two adjacent battery cells are electrically connected by electrode connecting plates, a battery shell is fixedly installed on the bottom of the battery cell, and multiple battery shells are respectively fixedly installed on the top between the corresponding two outer ring blocks.

[0011] Preferably, the buffer assembly includes four sliding rods, a buffer plate is slidably installed at one end between the four sliding rods, and the four corners on the outer side of the buffer plate are all filed and connected with springs, and the springs are fixedly installed on the inner wall of the shell.

[0012] Preferably, the adjustment assembly includes an adjustment plate, which is slidably mounted between four sliding rods, a threaded barrel is fixedly mounted on the outer side of the adjustment plate, and soft rubber plates are fixedly mounted on the inner sides of the adjustment plate and the buffer plate.

[0013] Preferably, the internal thread of the threaded barrel is connected to a transmission screw, one end of the transmission screw is fixedly connected to a worm gear, one side of the worm gear is rotatably connected to a second mounting block, the outer side of the worm gear is meshingly connected to a worm, and the outer side of the worm is rotatably mounted with two first mounting blocks, one end of the worm is fixedly mounted with a first knob, the second mounting block and the two first mounting blocks are fixedly mounted on the inner wall of the outer shell, and the pressure can be adjusted according to the number of battery cells to ensure the clamping force to avoid shaking and the risk of short circuit caused by poor electrode contact.

[0014] Preferably, the alarm assembly includes a sound alarm and an alarm light, and the sound alarm and the alarm light are fixedly mounted on the top of the top plate. A controller is fixedly mounted on one side of the connection between the sound alarm and the top plate, and the controller signal is connected to a signal transmitter, and the signal transmitter is fixedly mounted on the bottom plate, and one side of the signal transmitter is electrically connected to a smoke and gas sensor.

[0015] Preferably, the fire extinguishing assembly includes a storage bin, and fixing plates are fixedly installed on the four corners of the storage bin, and the fixing plates are fixedly connected to the bottom of the top plate. The fire extinguishing medium is provided inside the storage bin.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By splicing components, when the battery cells of the battery pack need to be adjusted, the number of battery cells can be increased or decreased by plugging in the base, making it easy to adjust the battery pack;

[0018] By adjusting the worm gear of the assembly and the transmission adjustment plate, battery packs with different numbers of units can be clamped and fixed to avoid shaking;

[0019] Through the alarm component and fire extinguishing component, when the battery temperature exceeds the threshold, the battery is directly protected from thermal runaway and an alarm is issued to avoid accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the spliced ​​battery pack installation shell structure of the present invention;

[0021] Figure 2 This is a front view of the spliced ​​battery pack mounting shell structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the spliced ​​battery pack installation shell structure of the present invention;

[0023] Figure 4 A cross-sectional view of the spliced ​​battery pack mounting shell structure of the present invention;

[0024] Figure 5 A schematic diagram of an adjustment assembly for mounting a shell structure of a spliced ​​battery pack according to the present invention;

[0025] Figure 6 A schematic diagram of a battery assembly with a spliced ​​battery pack mounting shell structure according to the present invention;

[0026] Figure 7 A schematic diagram of a splicing assembly for a spliced ​​battery pack mounting shell structure according to the present invention;

[0027] Figure 8This is a schematic diagram of the assembly and disassembly of the spliced ​​battery pack mounting shell structure of the present invention.

[0028] In the figure: 1. bottom plate; 2. shell; 3. top plate; 4. connecting block; 5. connecting seat; 6. controller; 7. sound alarm; 8. warning light; 9. signal transmitter; 10. smoke gas sensor; 11. storage bin; 12. fixing plate; 13. fire extinguishing medium; 14. sliding rod; 15. buffer plate; 16. adjustment plate; 17. spring; 18. soft rubber plate; 19. first mounting block; 20. second mounting block; 21. worm; 22. first knob; 23. worm gear; 24. transmission screw; 25. threaded barrel; 26. base; 27. female plug-in groove; 28. plug-in sub-block; 29. ​​limiting hole; 30. inner ring block; 31. socket; 32. sliding groove; 33. outer ring block; 34. plug-in rod; 35. second knob; 36. battery shell; 37. battery cell; 38. electrode connecting piece. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] See also Figure 1-8 The present invention provides a spliced ​​battery pack mounting shell structure, comprising a bottom plate 1, an outer shell 2 being fixedly connected to the outside of the bottom plate 1, a top cover assembly being hingedly connected to one end of the top of the outer shell 2, an alarm assembly for preventing thermal runaway being fixedly connected to the top of the top cover assembly, a fire extinguishing assembly being fixedly installed on the bottom of the top cover assembly, an adjustment assembly being fixedly installed on the inner wall of one side of the outer shell 2, a buffer assembly being fixedly installed on the inner wall of the other side of the outer shell 2, a splicing assembly being fixedly installed on the top of the bottom plate 1, a disassembly assembly being fixedly installed on the top of the splicing assembly, and a battery assembly being fixedly installed on the top of the disassembly assembly.

[0031] Furthermore, the top cover assembly includes a top plate 3 and two connecting seats 5. The top plate 3 is hinged at one end of the top of the outer shell 2. The two connecting seats 5 are fixedly installed on the front of the outer shell 2. Two connecting blocks 4 are fixedly installed on one side of the top plate 3. The connecting block 4 and the connecting seat 5 are fixedly connected by screws.

[0032] Furthermore, the splicing assembly includes multiple bases 26, two plug-in blocks 28 are fixedly installed on one side of the base 26, two plug-in female grooves 27 are opened on the other side of the base 26, and limiting holes 29 are opened at both ends of the base 26, and the corresponding plug-in female grooves 27 are slidably connected with the plug-in sub-blocks 28.

[0033] Furthermore, the disassembly and assembly components include multiple inner ring blocks 30, and the multiple inner ring blocks 30 are respectively fixedly mounted on the two ends of the tops of the multiple bases 26, a sliding groove 32 is provided at one end of the inner ring block 30, and a socket 31 is provided at the other end of the inner ring block 30, an outer ring block 33 is slidably mounted on the outside of the inner ring block 30, and the internal thread of the outer ring block 33 is connected to the plug rod 34, and a second knob 35 is fixedly mounted on one end of the plug rod 34, and the other end of the second knob 35 is slidably connected to the socket 31. The outer ring block 33 at the bottom of the battery shell 36 is slidably connected to the inner ring block 30 at the top of the base 26, and then the second knob 35 is rotated to insert the plug rod into the inside of the socket 31, so that the battery cell 37 can be fixed to the base 26.

[0034] Furthermore, the battery assembly includes multiple battery cells 37, and the electrodes of two adjacent battery cells 37 are electrically connected by electrode connecting plates 38. A battery shell 36 is fixedly installed on the bottom of the battery cell 37, and multiple battery shells 36 are respectively fixedly installed on the top between the corresponding two outer ring blocks 33.

[0035] Furthermore, the buffer assembly includes four sliding rods 14, a buffer plate 15 is slidably installed at one end between the four sliding rods 14, and the four corners of the outer side of the buffer plate 15 are filed and connected with a spring 17, and the spring 17 is fixedly installed on the inner wall of the shell 2, and the adjustment assembly includes an adjustment plate 16, the adjustment plate 16 is slidably installed between the four sliding rods 14, and a threaded cylinder 25 is fixedly installed on the outer side of the adjustment plate 16, and a soft rubber plate 18 is fixedly installed on the inner side of the adjustment plate 16 and the buffer plate 15. The internal thread of the threaded cylinder 25 is connected to a transmission screw 24, and one end of the transmission screw 24 is fixedly connected to a worm gear 23, and one side of the worm gear 23 is rotatably connected to a second mounting block 20, and the outer side of the worm gear 23 is meshed with a worm 21, and the outer side of the worm 21 is rotatably installed. Two first mounting blocks 19 are installed, and a first knob 22 is fixedly installed at one end of the worm 21. The second mounting block 20 and the two first mounting blocks 19 are fixedly installed on the inner wall of the outer shell 2. The first knob 22 is rotated to drive the worm 21 to rotate between the two first mounting blocks 19. When the worm 21 rotates, the worm gear 23 on the outer side of the meshing body rotates on the second mounting block 20. Because the worm gear 23 is fixedly connected to the transmission screw 24, the transmission screw 24 also rotates synchronously when the worm gear 23 rotates. The transmission screw 24 drives the threaded barrel 25 to move, so that it pushes the adjustment plate 16 to slide along the four sliding rods 14, and the battery pack is clamped and fixed by the soft rubber plate 18 on the inner side of the adjustment plate 16 and the buffer plate 15.

[0036] Furthermore, the alarm assembly includes a sound alarm 7 and an alarm light 8, which are fixedly mounted on the top of the top plate 3, a controller 6 is fixedly mounted on one side of the connection between the sound alarm 7 and the top plate 3, the controller 6 signal is connected to a signal transmitter 9, the signal transmitter 9 is fixedly mounted on the bottom plate 1, and one side of the signal transmitter 9 is electrically connected to a smoke and gas sensor 10, the fire extinguishing assembly includes a storage bin 11, the four corners of the storage bin 11 are fixedly mounted with a fixing plate 12, the fixing plate 12 is fixedly connected to the bottom of the top plate 3, the storage bin 11 is fixed with a fixing plate 12, and the fixing plate 12 is fixedly connected to the bottom of the top plate 3. A fire extinguishing medium 13 is provided inside. The storage bin 11 is made of bismuth-tin alloy as a thermal element. The fire extinguishing medium 13 is a liquid flame retardant. The melting point of bismuth-tin alloy is low. When the heat of the battery cell 37 exceeds the melting point of the storage bin 11, it melts and releases the internal fire extinguishing medium 13, which flame-retards the battery cell 37 to prevent thermal runaway. When the heat source contacts the liquid flame retardant, a large amount of gas is generated. When the smoke and gas sensor 10 detects smoke and gas, it sends a signal to the controller 6 through the signal transmitter 9, so that it controls the sound alarm 7 and the alarm light 8 to sound an alarm.

[0037] When the embodiment of the present application is in use: the multiple bases 26 are made into a whole by plugging the plug-in blocks 28 and the plug-in female grooves 27 on both sides of the multiple bases 26. At this time, the multiple limiting holes 29 are aligned, and the limiting screw is inserted to prevent the connection between the plug-in blocks 28 and the plug-in female grooves 27 from being displaced. Then, the outer ring block 33 at the bottom of the battery shell 36 is slidably connected with the inner ring block 30 at the top of the base 26, and then the second knob 35 is rotated to insert the plug-in rod into the inside of the hole 31 to fix the battery cell 37 to the base 26, and then the multiple battery cells 37 are connected into a battery assembly through multiple electrode connecting pieces 38, and then the first knob 22 is rotated to drive the worm 21 between the two first mounting blocks 19 The worm 21 rotates, and when the worm 21 rotates, the worm gear 23 on the outside engages and rotates on the second mounting block 20. The worm gear 23 drives the transmission screw 24 at one end to drive the threaded cylinder 25 to move, so that it pushes the adjustment plate 16 to slide along the four sliding rods 14. The battery pack is clamped and fixed with soft contact through the adjustment plate 16 and the soft rubber plate 18 on the inner side of the buffer plate 15 to prevent the battery pack from shaking and not being damaged by the clamping. Then the top plate 3 is closed, and the top cover 3 is fixed by installing fixing screws between the connecting block 4 and the connecting seat 5. When it is necessary to increase or decrease the battery cells 37 of the battery pack, the top plate 3 is opened, the limiting screw inside the limiting hole 29 is released, and the redundant base 26 is pulled out, or more are added by plugging in. The battery pack is re-clamped and fixed by rotating the first knob 22. When the battery pack is working, a large amount of temperature will be generated, and thermal runaway may sometimes occur. This is an inevitable situation. When the heat of the battery cell 37 exceeds the melting point of the storage bin 11, it melts and releases the internal fire extinguishing medium 13, which makes the battery cell 37 flame-retardant to prevent thermal runaway. When the heat source contacts the liquid flame retardant, a large amount of gas will be generated. The smoke and gas 1 inside the housing 2 are sensed by the smoke and gas sensor 10. When gas and smoke are detected, information is transmitted to the signal transmitter 9 on one side, and the signal transmitter 9 is sent to the controller 6. Send power signal. When the controller 6 receives the electrical signal, it controls the sound alarm 7 and the alarm light 8 to sound an alarm at the same time, and reminds through the combination of sound and light. After the thermal runaway of the battery pack is handled, open the top plate 3 to clean the interior, and then check whether there is any battery cell 37 damaged. If a battery cell 37 is damaged, first disconnect it from the electrodes of other battery cells 37, and then reverse the second knob 35 to make the plug rod 34 leave the socket 31, and then the battery cell 37 and the battery shell 36 can be disassembled, and then a new battery cell 37 is replaced and the electrode connecting piece 38 is reconnected. The used storage bin 11 can be mechanically disassembled by removing the fixing piece 12, and then the new storage bin 11 is reassembled to restore the battery pack to work.

[0038] All components are universal standard parts or components known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. All the electrical components mentioned above should refer to the above working principles, and the electrical connections between the electrical components are completed in the order of working. The detailed connection methods are well known in the art.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spliced ​​battery pack mounting shell structure, comprising a bottom plate (1), characterized in that: The outer portion of the base plate (1) is fixedly connected to the outer shell (2), one end of the top of the outer shell (2) is hingedly connected to a top cover assembly, the top of the top cover assembly is fixedly connected to an alarm assembly for preventing thermal runaway, the bottom of the top cover assembly is fixedly installed with a fire extinguishing assembly, the inner wall of one side of the outer shell (2) is fixedly installed with an adjustment assembly, the inner wall of the other side of the outer shell (2) is fixedly installed with a buffer assembly, the top of the base plate (1) is fixedly installed with a splicing assembly, the top of the splicing assembly is fixedly installed with a disassembly assembly, and the top of the disassembly assembly is fixedly installed with a battery assembly.

2. The spliced ​​battery pack mounting shell structure according to claim 1, characterized in that: The top cover assembly comprises a top plate (3) and two connecting seats (5), wherein the top plate (3) is hinged to one end of the top of the housing (2), and the two connecting seats (5) are fixedly mounted on the front of the housing (2), and two connecting blocks (4) are fixedly mounted on one side of the top plate (3), and the connecting blocks (4) and the connecting seats (5) are fixedly connected by screws.

3. The spliced ​​battery pack mounting shell structure according to claim 1, characterized in that: The splicing assembly comprises a plurality of bases (26), two plug-in sub-blocks (28) are fixedly mounted on one side of the base (26), two plug-in female grooves (27) are provided on the other side of the base (26), and limiting holes (29) are provided at both ends of the base (26), and the corresponding plug-in female grooves (27) are slidably connected to the plug-in sub-blocks (28).

4. The spliced ​​battery pack mounting shell structure according to claim 3, characterized in that: The disassembly assembly comprises a plurality of inner ring blocks (30), wherein the plurality of inner ring blocks (30) are fixedly mounted on the two ends of the top of the plurality of bases (26), one end of the inner ring block (30) is provided with a sliding groove (32), the other end of the inner ring block (30) is provided with a socket (31), an outer ring block (33) is slidably mounted on the outside of the inner ring block (30), the inner thread of the outer ring block (33) is connected to a plug rod (34), one end of the plug rod (34) is fixedly mounted with a second knob (35), and the other end of the second knob (35) is slidably connected to the socket (31).

5. The spliced ​​battery pack mounting shell structure according to claim 4, characterized in that: The battery assembly includes a plurality of battery cells (37), wherein electrodes of two adjacent battery cells (37) are electrically connected to electrode connecting pieces (38), a battery shell (36) is fixedly mounted on the bottom of the battery cell (37), and the plurality of battery shells (36) are respectively fixedly mounted on the top between the corresponding two outer ring blocks (33).

6. The spliced ​​battery pack mounting shell structure according to claim 1, characterized in that: The buffer assembly comprises four sliding rods (14), a buffer plate (15) is slidably mounted at one end between the four sliding rods (14), four outer corners of the buffer plate (15) are connected with springs (17), and the springs (17) are fixedly mounted on the inner wall of the housing (2).

7. The spliced ​​battery pack mounting shell structure according to claim 6, characterized in that: The adjustment assembly comprises an adjustment plate (16), the adjustment plate (16) being slidably mounted between four sliding rods (14), a threaded barrel (25) being fixedly mounted on the outer side of the adjustment plate (16), and soft rubber plates (18) being fixedly mounted on the inner sides of both the adjustment plate (16) and the buffer plate (15).

8. The spliced ​​battery pack mounting shell structure according to claim 7, characterized in that: The internal thread of the threaded barrel (25) is connected to a transmission screw (24), one end of the transmission screw (24) is fixedly connected to a worm wheel (23), one side of the worm wheel (23) is rotatably connected to a second mounting block (20), the outer side of the worm wheel (23) is meshingly connected to a worm (21), the outer side of the worm (21) is rotatably mounted with two first mounting blocks (19), one end of the worm (21) is fixedly mounted with a first knob (22), and the second mounting block (20) and the two first mounting blocks (19) are fixedly mounted on the inner wall of the housing (2).

9. The spliced ​​battery pack mounting shell structure according to claim 2, characterized in that: The alarm assembly comprises a sound alarm (7) and an alarm light (8), both of which are fixedly mounted on the top of the top plate (3), a controller (6) is fixedly mounted on one side of the connection between the sound alarm (7) and the top plate (3), the controller (6) is signal-connected to a signal transmitter (9), the signal transmitter (9) is fixedly mounted on the bottom plate (1), and one side of the signal transmitter (9) is electrically connected to a smoke and gas sensor (10).

10. The spliced ​​battery pack mounting shell structure according to claim 2, characterized in that: The fire extinguishing assembly comprises a storage bin (11), wherein four corners of the storage bin (11) are fixedly mounted with fixing plates (12), the fixing plates (12) are fixedly connected to the bottom of the top plate (3), and a fire extinguishing medium (13) is provided inside the storage bin (11).

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