A solid-state lithium battery module frame safety shockproof device

Abstract

The application discloses a solid-state lithium battery module frame safety shockproof device, which comprises a battery protection shell, four groups of fixed ears are fixedly arranged on the inner walls of the upper and lower ends of the battery protection shell along the center, and the fixed ears on the upper and lower ends are mirror-symmetrical; one end of each group of the fixed ears is rotationally arranged with a spring rod, the other end of the four groups of spring rods on the same end is rotationally arranged with a fixed plate, a lithium battery frame is fixedly arranged between the two groups of fixed plates, a plurality of solid-state lithium batteries are fixedly arranged in the lithium battery frame; the plurality of solid-state lithium batteries are connected in series, and a power output cable is arranged on the left side of the plurality of solid-state lithium batteries, and the other end of the power output cable is fixedly embedded on the inner wall of the left side of the battery protection shell; and an interface protection assembly is sleeved on the outer side of the power output cable, and the two ends of the interface protection assembly are fixedly arranged on the battery protection shell and the lithium battery frame respectively.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium batteries, in particular to a solid-state lithium battery module frame safety shockproof device. BACKGROUND

[0002] Solid-state batteries refer to lithium ion batteries using solid-state electrolytes. Compared with liquid-state electrolyte lithium batteries, solid-state batteries have the characteristics of non-flammability, non-corrosion, non-volatility and high temperature resistance. Solid-state electrolyte is the core of solid-state batteries, and the electrolyte material largely determines the various performance parameters of solid-state lithium batteries, such as cycle stability, energy density, safety performance, high and low temperature performance, and service life.

[0003] In the daily use process, because of the unevenness of the road and other reasons, the solid-state lithium battery located in the vehicle body will be shaken frequently, thereby causing damage to the lithium battery and further causing safety accidents. The existing shockproof device usually uses the deformation of the spring to offset the external vibration, or uses the elastic force of the spring to keep the vibration of the lithium battery within a certain range, thereby avoiding the damage of the lithium battery. However, this method inevitably causes the lithium battery to shake, which does not cause damage to the lithium battery itself, but causes the output cable of the lithium battery to break or its interface to loosen, thereby causing electric leakage, and even causing serious safety accidents.

[0004] Therefore, it is necessary to provide a solid-state lithium battery module frame safety shockproof device to solve the above problems. SUMMARY

[0005] To achieve the above purpose, the present application provides the following technical scheme, a solid-state lithium battery module frame safety shockproof device, comprising:

[0006] A battery protection shell, four groups of fixed ears are fixedly assembled on the inner walls of the upper and lower ends along the center, and the fixed ears of the upper and lower ends are mirror-symmetric;

[0007] One end of each group of fixed ears is rotatably assembled with a spring rod, the other end of the four spring rods of the same end is rotatably assembled with a fixed plate, a lithium battery frame is fixedly assembled between the two fixed plates, and a plurality of solid-state lithium batteries are fixedly assembled in the lithium battery frame;

[0008] A plurality of solid-state lithium batteries are connected in series, and an electric power output cable is arranged on the left side thereof, and the other end of the electric power output cable is fixedly embedded in the inner wall of the left side of the battery protection shell;

[0009] An interface protection assembly is sleeved on the outer side of the electric power output cable, and both ends thereof are fixedly assembled on the battery protection shell and the lithium battery frame, respectively.

[0010] Further, as preferred, a first compression spring is coaxially arranged on the fixed plate, and a threaded bolt is arranged at the other end of the first compression spring, and the threaded bolt is fixedly arranged on the inner wall of the upper end or lower end of the battery protection shell.

[0011] Further, as preferred, the interface protection assembly comprises:

[0012] An interface rotating assembly is arranged in mirror image, and is fixedly arranged on the battery protection shell and the lithium battery frame, respectively.

[0013] A cable reserving shell is arranged in two groups, and is coaxially fixedly arranged inside the two groups of interface rotating assemblies.

[0014] A cable supporting assembly is arranged in mirror image, and is fixedly arranged on the inner wall of the two groups of cable reserving shells.

[0015] Further, as preferred, a plurality of rectangular grooves are arranged on the inner side wall of the cable reserving shell, and a buckle shaft matched with the rectangular grooves is fixedly arranged on the inner side plane, the rectangular grooves on the two groups of cable reserving shells are mismatched with the buckle shafts, and a return spring is fixedly arranged on the outer side of each buckle shaft, and the other end of the return spring is fixedly arranged inside the rectangular groove.

[0016] Further, as preferred, the interface rotating assembly comprises:

[0017] A fixed block is fixedly arranged on the inner wall of the left side of the battery protection shell, and the left end of the fixed block is coaxially fixedly connected with the power output cable.

[0018] A rotating block is coaxially fixedly arranged on the right side of the cable reserving shell.

[0019] An extension tube is fixedly arranged between the fixed block and the rotating block.

[0020] Further, as preferred, four cylindrical grooves are arranged on the inner side of the fixed block and the rotating block, a limiting spring is coaxially fixedly arranged in the cylindrical groove, a sliding rod is rotatably and slidably arranged, the limiting spring in the fixed block and the rotating block is arranged opposite to the sliding rod, and a cross shaft is rotatably arranged between the two coaxial sliding rods.

[0021] Further, as preferred, a limiting block is arranged at the other end of the sliding rod.

[0022] Further, as preferred, the cable supporting assembly comprises:

[0023] An extension rod is fixedly arranged on the inner wall of the cable reserving shell, and a cable ring is coaxially fixedly arranged at the other end of the extension rod.

[0024] A second compression spring is coaxially fixedly arranged on the outer side of the extension rod.

[0025] Further, as preferred, four sets of rotating shafts are arranged inside the cable ring, and rolling wheels are rotatably arranged on the rotating shafts.

[0026] Compared with the prior art, the application provides a solid-state lithium battery module frame safety shockproof device, which has the following beneficial effects:

[0027] In the application, four sets of spring rods are arranged between the battery protection shell and the lithium battery, and a first compression spring and an adjusting bolt are arranged, the vertical distance between the fixing plate and the upper end of the battery protection shell can be changed by rotating the first compression spring, the initial extension length of the spring rod is further limited, and in the case of the same battery protection shell, the vertical distance between the two fixing plates is changed, so that the device is applicable to lithium battery frames of different specifications, when the vibration is small, the vibration can be offset by the contraction of the spring rods in different degrees and directions, so as to eliminate the influence of the vibration on the lithium battery, when the vibration is large, the spring rods cannot completely offset, the lithium battery frame will drive the solid-state lithium battery to displace or rotate to a certain extent, an interface protection assembly is arranged, the interface rotating assembly in the interface protection assembly will rotate to a certain extent, and two cable reservation shells are arranged and will move to both sides, at this time, the contraction of the cable support assembly is used to release a certain length of cable, so as to offset the distance change between the two interfaces, prevent the distance between the two interfaces from changing to generate a certain tension to cause the power output cable to be broken or the interface to be loose. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 It is a structural schematic diagram of a solid-state lithium battery module frame safety shockproof device.

[0029] Fig. 2 It is a structural schematic diagram of an interface protection assembly of a solid-state lithium battery module frame safety shockproof device.

[0030] Fig. 3 It is a structural schematic diagram of an interface rotating assembly of a solid-state lithium battery module frame safety shockproof device.

[0031] Fig. 4 It is a structural schematic diagram of a cable support assembly of a solid-state lithium battery module frame safety shockproof device.

[0032] In the figure: 1, battery protection shell; 2, fixed ear; 3, spring rod; 4, fixed plate; 5, lithium battery frame; 6, solid-state lithium battery; 7, interface protection assembly; 8, first compression spring; 9, adjusting bolt; 10, power output cable; 71, interface rotating assembly; 72, cable reservation shell; 73, cable support assembly; 74, rectangular groove; 75, buckle shaft; 76, reset spring; 711, fixed block; 712, rotating block; 713, telescopic tube; 714, limit spring; 715, sliding rod; 716, cross shaft; 717, limit block; 731, telescopic rod; 732, second compression spring; 733, cable ring; 734, rolling wheel. DETAILED DESCRIPTION

[0033] Please refer to Figs. 1-4 The application provides a solid-state lithium battery module frame safety shockproof device, comprising:

[0034] The battery protection shell 1 is provided with four groups of fixed ears 2 symmetrically arranged on the inner walls of the upper and lower ends and fixedly assembled along the center.

[0035] One end of each group of fixed ears 2 is rotatably assembled with a spring rod 3, the other end of the four spring rods 3 of the same end is rotatably assembled with a fixed plate 4, two groups of fixed plates 4 are fixedly assembled with a lithium battery frame 5, and a plurality of solid-state lithium batteries 6 are fixedly assembled in the lithium battery frame 5.

[0036] The plurality of solid-state lithium batteries 6 are connected in series, and a power output cable 10 is arranged on the left side of the plurality of solid-state lithium batteries 6, and the other end of the power output cable 10 is fixedly embedded in the inner wall of the left side of the battery protection shell 1.

[0037] The interface protection assembly 7 is sleeved on the outer side of the power output cable 10, and the two ends thereof are fixedly assembled on the battery protection shell 1 and the lithium battery frame 5, respectively.

[0038] As a preferred embodiment, the battery protection shell 1 is connected with an external vehicle body, when the external vehicle body vibrates, the vibration is synchronously conducted to the battery protection shell 1, the eight groups of spring rods 3 in the battery protection shell 1 are stretched and contracted in different degrees and directions, so that the vibration is as little as possible to be conducted to the lithium battery frame 5, thereby protecting the solid-state lithium battery 6, and when the external vibration makes not less than one group of spring rods 3 in the limit state, the lithium battery frame 5 will not be in contact with the battery protection shell 1, and when the external vibration is too large and the spring rod 3 cannot completely offset, the lithium battery frame 5 will drive the solid-state lithium battery 6 to displace or rotate to a certain extent, and the interface protection assembly 7 will be adjusted adaptively to prevent the power output cable 10 from being broken or the interface thereof from being loose.

[0039] Further, the fixed plate 4 is coaxially rotatably provided with a first compression spring 8 on the far field plane, and the other end of the first compression spring 8 is threadedly provided with an adjusting bolt 9, which is fixedly provided on the inner wall of the upper end or lower end of the battery protection shell 1.

[0040] As a preferred embodiment, the first compression spring 8 can assist in resetting the spring rod 3 after the extension and retraction of the spring rod 3, and by rotating the first compression spring 8, the vertical distance of the lower end of the first compression spring 8 relative to the adjusting bolt 9 can be adjusted, thereby changing the initial length of the first compression spring 8, and the vertical distance between the fixed plate 4 and the upper end of the battery protection shell 1 can be changed, further limiting the initial extension and retraction length of the spring rod 3, and in the case of the same battery protection shell 1, the vertical distance between the two fixed plates 4 can be changed, so that the device is applicable to lithium battery frames 5 of different specifications.

[0041] Further, the interface protection assembly 7 comprises:

[0042] An interface rotating assembly 71 is mirror-imaged and fixedly provided on the battery protection shell 1 and the lithium battery frame 5.

[0043] A cable reservation shell 72 is provided with two groups, which are coaxially fixed inside the two groups of interface rotating assemblies 71.

[0044] A cable support assembly 73 is mirror-imaged and fixedly provided on the inner wall of the two groups of cable reservation shells 72.

[0045] As a preferred embodiment, in the initial state, the cable reservation shell 72 is in a horizontal position, at which time the interface distance between the lithium battery frame 5 and the battery protection shell 1 is the smallest, and when the lithium battery frame 5 drives the solid-state lithium battery 6 to displace or rotate, the interface rotating assembly 71 will adaptively deform, thereby offsetting the tension on the interface caused by the cable, preventing the interface from loosening and causing a leakage, and the two groups of cable support assemblies 73 are mirror-imaged, a part of the cable is fixed in the cable reservation shell 72 in a curved form, so that when the lithium battery frame 5 drives the solid-state lithium battery 6 to displace or rotate, a part of the cable is released through the deformation of the cable support assembly 73 to offset the length change of the power output cable 10 caused by the change in the position of the solid-state lithium battery 6, preventing the power output cable 10 from being damaged by tension caused by being too short, and avoiding the problem of direct reservation of cables being entangled with each other.

[0046] Further, a plurality of rectangular grooves 74 are formed on the inner side wall of the cable reservation shell 72, and a buckle shaft 75 is fixedly provided on the inner side plane of the cable reservation shell 72, the rectangular grooves 74 and the buckle shaft 75 on the two groups of cable reservation shells 72 are misaligned, and a reset spring 76 is fixedly provided on the outer side of each buckle shaft 75, and the other end of the reset spring 76 is fixedly provided in the rectangular groove 74.

[0047] As a preferred embodiment, the position between the two adjacent groups of rectangular grooves 74 is provided with the buckle shaft 75, and the two groups of cable reservation shells 72 are matched with each other. In the initial state, the interface distance between the lithium battery frame 5 and the battery protection shell 1 is the smallest. Therefore, when the position of the lithium battery frame 5 changes, the distance between the two interfaces will increase, and the two groups of cable reservation shells 72 will move to the two sides respectively, thereby increasing the overall length of the interface protection assembly 7. The reset spring 76 will be compressed. When the position change of the lithium battery frame 5 stops, the spring rod 3 is expected to make the lithium battery frame 5 return to the initial position. At this time, the reset spring 76 will make the two groups of cable reservation shells 72 return to the initial position through the elastic force thereof.

[0048] Further, the interface rotating assembly 71 comprises:

[0049] The fixed block 711 is fixedly assembled at one end of the inner wall on the left side of the battery protection shell 1, and the left end thereof is coaxially fixedly connected with the power output cable 10;

[0050] The rotating block 712 is coaxially fixedly assembled on the right side of the cable reservation shell 72;

[0051] The telescopic pipe 713 is fixedly assembled between the fixed block 711 and the rotating block 712;

[0052] As a preferred embodiment, the two groups of fixed blocks 711 remain in a stationary state relative to the battery protection shell 1 or the lithium battery frame 5, so as to prevent the interface from loosening during vibration. When the rotating block 712 rotates relative to the fixed block 711, the telescopic pipe 713 will be adaptively telescopic, so that the fixed block 711 and the rotating block 712 remain closed, thereby avoiding dust and the like from entering to cause rotation failure.

[0053] Further, four groups of cylindrical grooves are formed in the inner sides of the fixed block 711 and the rotating block 712, and the limiting spring 714 is coaxially fixedly assembled in the cylindrical grooves. The sliding rod 715 is rotatably and slidably assembled. The limiting spring 714 and the sliding rod 715 in the fixed block 711 and the rotating block 712 are oppositely arranged, and the cross shaft 716 is rotatably assembled between the two coaxial sliding rods 715;

[0054] As a preferred embodiment, the limiting spring 714 is in a normal state in the initial state. When the position of the lithium battery frame 5 changes, the sliding rod 715 will slide to a certain extent, and simultaneously drive the cross shaft 716 to rotate relative to the fixed block 711 by a certain angle, so that the included angle between the fixed block 711 and the rotating block 712 and the included angle between the plane where the included angle is located and the upper surface of the battery protection shell 1 change. When the vibration ends, the limiting spring 714 returns to the initial position.

[0055] Further, the sliding rod 715 is provided with a limiting block 717 at the other end, which prevents the displacement of the sliding rod 715 on one side from being too large so as to slide out of the device and cause damage to the device.

[0056] Further, the cable support assembly 73 comprises:

[0057] a telescopic rod 731, one end of which is fixedly assembled on the inner wall of the cable reserving shell 72, and the other end is coaxially fixedly assembled with a cable ring 733;

[0058] a second compression spring 732, which is coaxially fixedly assembled on the outside of the telescopic rod 731;

[0059] As a preferred embodiment, the interface protection assembly 7 is in a horizontal state in the initial state, at which time the distance between the two interfaces is the shortest, and the effective length of the required cable is the shortest. At this time, the telescopic rod 731 is in a fully extended state, so that the cable as a whole is in a compact state, preventing the cable from being too long to form a winding or knot and causing damage to the device. When the two groups of cable reserving shells 72 are relatively displaced or the rotating block 712 is rotated relative to the fixed block 711, the distance between the two interfaces will increase to a certain extent, and the length of the required cable will increase. At this time, the cable will give the cable ring 733 a pressure pointing to the center, so that the telescopic rod 731 is contracted, thereby increasing the effective length of the cable, and at the same time, the second compression spring 732 is compressed. When the components are reset, the second compression spring 732 will push the telescopic rod 731 to reset, so that the cable always remains in a compact state.

[0060] Further, the cable ring 733 is provided with four groups of rotating shafts inside, on which rolling wheels 734 are rotatably assembled. When the effective length of the cable changes, it will slide relative to the cable ring 733. In order to prevent the cable ring 733 from causing damage to the surface of the cable, the rolling wheels 734 are provided to change the sliding into rolling, which protects the surface of the cable while reducing the friction and improving the operating efficiency of the device.

[0061] In specific implementation, the following steps are included: when the external vibration is small, the vibration is synchronously conducted to the battery protection shell 1, eight groups of spring rods 3 in the battery protection shell 1 offset the vibration by stretching and contracting in different degrees and directions, thereby protecting the solid-state lithium battery 6; when the external vibration is too large and the spring rods 3 cannot completely offset the vibration, the lithium battery frame 5 drives the solid-state lithium battery 6 to displace or rotate to a certain extent, at this time, the interface rotating assembly 71 in the interface protection assembly 7 rotates to a certain extent, the two groups of cable reservation shells 72 move to the two sides, at this time, the distance between the two interfaces changes, the cable supporting assembly 73 contracts, thereby releasing a certain length of cable, preventing the distance between the two interfaces from changing to generate a certain pressure to cause the power output cable 10 to break or the interface of the power output cable 10 to loosen, and when the vibration ends, the first compression spring 8, the reset spring 76, the limiting spring 714 and the second compression spring 732 are used to return various assemblies to the initial positions.

[0062] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacements or changes to the technical range disclosed in the present application according to the technical solution and the inventive concept of the present application, which should be covered in the protection scope of the present application.

Claims

1. A solid-state lithium battery module frame safety shock protection device, characterized by: Include: Battery protection shell (1), the inner wall of its upper and lower ends are fixedly equipped with four groups of fixed ears (2) along the center, and the fixed ears (2) of the upper and lower ends are mirror image symmetrical; Each group of fixed ears (2) is rotatably equipped with one end of a spring rod (3), and the other end of the four groups of spring rods (3) is rotatably equipped with a fixed plate (4), two groups of fixed plates (4) are fixedly equipped with a lithium battery frame (5), and a plurality of solid-state lithium batteries (6) are fixedly equipped in the lithium battery frame (5); A plurality of solid-state lithium batteries (6) are connected in series, and the left side is provided with a power output cable (10), and the other end of the power output cable (10) is fixedly embedded in the inner wall of the left side of the battery protection shell (1); The interface protection assembly (7) is sleeved on the outer side of the power output cable (10), and the two ends are fixedly equipped on the battery protection shell (1) and the lithium battery frame (5) respectively; The interface protection assembly (7) comprises: Interface rotating assembly (71), mirror image is provided with two groups, is fixedly equipped on the battery protection shell (1) and the lithium battery frame (5) respectively; Cable reservation shell (72) is provided with two groups, which are coaxially fixed on the inner side of the two groups of interface rotating assemblies (71); Cable support assembly (73), mirror image is provided with two groups, is fixedly equipped on the inner wall of the two groups of cable reservation shells (72); The interface rotating assembly (71) comprises: Fixed block (711), one end is fixedly equipped on the inner wall of the left side of the battery protection shell (1), and the left end is coaxially fixedly connected with the power output cable (10); Rotating block (712), coaxially fixedly equipped on the right side of the cable reservation shell (72); The fixed block (711) and the rotating block (712) are fixedly equipped with an expansion tube (713); The cable support assembly (73) comprises: Expansion rod (731), one end is fixedly equipped on the inner wall of the cable reservation shell (72), the other end is coaxially fixedly equipped with a cable ring (733); Second compression spring (732), coaxially fixedly equipped on the outer side of the expansion rod (731).

2. A solid-state lithium battery module frame safety shock absorbing device according to claim 1, characterized in that: The fixed plate (4) coaxially rotates on the circumferential plane and is equipped with a first compression spring (8), the other end of the first compression spring (8) is threadedly equipped with an adjusting bolt (9), and the adjusting bolt (9) is fixedly equipped on the inner wall of the upper end or the lower end of the battery protection shell (1).

3. A solid-state lithium battery module frame safety shock absorbing device according to claim 1, characterized in that: A plurality of rectangular grooves (74) are formed in the inner side wall of the cable reservation shell (72), and a buckle shaft (75) matched with the rectangular groove (74) is fixedly arranged on the inner side plane, the rectangular grooves (74) and the buckle shafts (75) on the two groups of cable reservation shells (72) are mismatched, and a reset spring (76) is fixedly arranged on the outer side of each group of buckle shafts (75), and the other end of the reset spring (76) is fixedly arranged in the inner side of the rectangular groove (74).

4. The solid-state lithium battery module frame shock protection device of claim 1, wherein: The fixed block (711) and the inner side of the rotating block (712) are provided with four groups of cylindrical grooves, a limiting spring (714) is coaxially fixedly assembled in the cylindrical grooves, a sliding rod (715) is rotatably and slidably assembled, the limiting spring (714) and the sliding rod (715) in the fixed block (711) and the rotating block (712) are oppositely arranged, and a cross shaft (716) is rotatably assembled between the two coaxial groups of sliding rods (715).

5. A solid-state lithium battery module frame safety shock absorbing device according to claim 4, characterized in that: The other end of the sliding rod (715) is provided with a limiting block (717).

6. A solid-state lithium battery module frame safety shock absorbing device according to claim 1, characterized by: The cable ring (733) is internally provided with four groups of rotating shafts, and rolling wheels (734) are rotatably assembled on the rotating shafts.

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