Lithium battery Pack structure box body

Abstract

The utility model belongs to the technical field of lithium battery Packs, and relates to a lithium battery Pack structure box body which comprises a main body box body, eight buffer assemblies are symmetrically installed on the inner wall of the main body box body, a battery installation box body is installed in the main body box body, and the eight buffer assemblies are installed on the two sides of the battery installation box body. A cooling assembly and a sliding assembly are respectively mounted on two sides of the battery mounting box body. According to the utility model, the sliding block slides on the sliding frame and the damping spring is compressed, so that the first-stage impact is relieved, the sliding block drives the buffer rod to stretch through the hinge frame I, and the hinge frame II at the other end of the buffer rod shifts along with the sliding of the sliding block, so that the second-stage impact is relieved; two-stage impact force buffering is combined, the buffering effect is greatly enhanced, the impact force transmitted to the battery is effectively reduced, and the eight buffering assemblies are uniformly distributed on the outer side of the battery mounting box body, so that the impact force generated during impact can be more effectively dispersed and absorbed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium battery Pack technical field relates to a lithium battery Pack structure box. BACKGROUND

[0002] Lithium battery Pack refers to the process of lithium ion battery pack is divided into capacity and resistance, processing, aging, detection and assembly through specific technology, can be multiple batteries in parallel or single battery, the box of lithium battery Pack structure mainly comprises box body, box cover, metal support, panel and fixing screw.

[0003] Such as patent (CN211455770U) has disclosed, wherein record a kind of novel lithium battery pack combination box structure, including box;The box is spaced apart and provided with multiple lithium battery bodies, heat insulation plate is arranged between adjacent two lithium battery bodies, characterized in that;The heat insulation plate is symmetrically provided with a plurality of heat conduction strips on both sides;The heat conduction strip is connected with the heat conduction plate arranged at the bottom of the box;The lithium battery body is clamped and fixed by movable clamping plate.The utility model controls operating lever, realizes the positioning of the positioning rod on the clamping plate to the position of lithium battery body on the device, so as to realize the fixation of lithium battery body of different specifications.Through the buffer of rubber foot pad to the expansion outside the device, through the buffer of buffer pad to the vibration of lithium battery body on the device and the device, through the buffer of movable rubber pad to the vibration between lithium battery body, so as to realize the protection of lithium battery body on the device.Improve the safety and service life of lithium battery body.

[0004] When using the above technology, it is found that the prior art has the following technical problems: by setting the buffer pad to buffer the vibration of lithium battery body and the device, but when the box is subjected to external force impact and occurs concave, the pad originally designed for buffering may be compressed to the limit due to the deformation of the box, and even may be extruded and deformed or damaged by the box, thereby losing its proper buffering effect, and the concave of the box may extrude the battery inside, causing the battery to break, and the broken battery may even cause fire. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is that when the box is subjected to external force impact and occurs concave, the pad originally designed for buffering may be compressed to the limit due to the deformation of the box, and even may be extruded and deformed or damaged by the box, thereby losing its proper buffering effect, and the concave of the box may extrude the battery inside, causing the battery to break, and the broken battery may even cause fire.

[0006] The utility model discloses a lithium battery pack structure box body, including main body box body, eight buffer assemblies are symmetrically installed to main body box body inner wall, the battery installation box body is installed in the main body box body, eight buffer assemblies are installed in the both sides of battery installation box body, the both sides of battery installation box body are installed with cooling assembly and sliding assembly respectively, and the fixed component is provided at battery box body top.

[0007] The buffer assembly includes a sliding frame, the sliding frame is installed on the inner wall of the main body box, a sliding block is slidably connected to the sliding frame, a shock absorbing spring is installed on the sliding frame, the other end of the shock absorbing spring is connected to the sliding block, a hinged frame is installed on the sliding block, a buffer rod is hingedly connected to the upper end of the hinged frame, a hinged frame two is hingedly connected to the end of the buffer rod away from the hinged frame one, and the hinged frame two is connected to the outer side of the battery installation box.

[0008] The cooling assembly includes a cooling pipeline, the cooling pipeline is installed on the outer side of the battery installation box, control valves are installed at both ends of the cooling pipeline, hydraulic storage bottles are installed at the bottom of the control valves, valve control rods are installed on the control valves, first gears are installed at the end of the valve control rods away from the control valves, mounting frames are installed on the hydraulic storage bottles, and the hydraulic storage bottles are installed on the outer side of the battery installation box through the mounting frames.

[0009] The sliding assembly includes two groups of spring telescopic rods, four spring rods form a group, one end of the two groups of spring telescopic rods is installed on the outer side of the same battery installation box, the same blocking rod is installed at the end of the four spring telescopic rods away from the battery installation box, and a first rack is installed at the end of the blocking rod.

[0010] The fixing assembly includes two sliding rods, the two sliding rods are symmetrically arranged at the top of the battery installation box, five groups of driving frames are slidably connected to the sliding rods, two driving frames form a group, the same heat conducting plate is installed on each group of driving frames, and the five groups of driving frames are installed on the battery installation box through fixing bolts.

[0011] A plurality of heat dissipation holes are formed in the battery installation box, two air guide grooves are formed in the inner wall of the top of the battery installation box, two heat dissipation fans are installed on the main body box, and a cover plate is installed on the top of the main body box.

[0012] Compared with the prior art, the utility model discloses the beneficial effect is: through the sliding of sliding block on the slide frame and the compression of damping spring, first -stage slow -acting buffer is formed, and sliding block drives buffer rod to stretch through hinged frame no.

[0013] When the main body box is extruded and recessed, the sliding assembly drives the cooling assembly to respond quickly, the inner wall extrusion barrier rod is blocked, and a series of mechanical actions are triggered, finally make liquid nitrogen from the hydraulic storage bottle release to the cooling pipeline, and the liquid nitrogen as cooling medium, its extremely low temperature can reduce the temperature in the battery mounting box quickly, effectively inhibit the occurrence of battery thermal runaway and fire. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the structure schematic diagram of the whole of the utility model.

[0016] Figure 2 It is the structure schematic diagram of the main body box section of the utility model.

[0017] Figure 3 It is the schematic diagram of the buffer assembly and battery mounting box connection of the utility model.

[0018] Figure 4 It is the structure schematic diagram of the buffer assembly of the utility model.

[0019] Figure 5 It is the structure schematic diagram of the battery mounting box of the utility model.

[0020] Figure 6 It is the structure schematic diagram of the utility model Figure 5 in A place amplification.

[0021] Figure 7 It is the structure schematic diagram of the utility model Figure 5 in B place amplification.

[0022] Figure 8 is the structural diagram of the battery mounting box body and mounting frame connection of the utility model.

[0023] In the figure: 1, main body box; 2, battery mounting box; 3, sliding frame; 4, shock absorbing spring; 5, sliding block; 6, hinged frame one; 7, buffer rod; 8, hinged frame two; 9, cooling pipeline; 10, control valve; 11, valve control lever; 12, first gear; 13, liquid nitrogen storage bottle; 14, mounting frame; 15, spring telescopic rod; 16, blocking rod; 17, first rack; 18, sliding rod; 19, drive frame; 20, heat conducting plate; 21, fixing bolt; 22, air guide groove; 23, heat dissipation hole; 24, heat dissipation fan; 25, cover plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] In order to make the person in the art better understand the utility model scheme, the technical scheme in the utility model example will be clearly and completely described below by combining with the drawings.

[0026] It should be noted that the examples in the utility model and the features and technical schemes in the examples can be combined with each other without conflict.

[0027] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0028] Example 1

[0029] As shown in Figures 1-8 A lithium battery Pack structure box, comprising a main body box 1, eight buffer assemblies are symmetrically installed on the inner wall of the main body box 1, a battery mounting box 2 is installed in the main body box 1, the eight buffer assemblies are installed on both sides of the battery mounting box 2, cooling assemblies and sliding assemblies are respectively installed on both sides of the battery mounting box 2, and a fixing assembly is arranged on the top of the battery box; the buffer assembly not only provides damping function, but also enhances the overall structural strength of the main body box 1 and the battery mounting box 2 through its complex connection structure, so that the box is less likely to deform or break when impacted, thereby further protecting the battery in the box;

[0030] The buffer assembly includes a sliding frame 3, which is installed on the inner wall of the main body 1. A sliding block 5 is slidably connected to the sliding frame 3. A shock-absorbing spring 4 is installed on the sliding frame 3. The other end of the shock-absorbing spring 4 is connected to the sliding block 5. A hinge frame is installed on the sliding block 5. A buffer rod 7 is hinged on the first hinge frame 6. A second hinge frame 8 is hinged to the end of the buffer rod 7 away from the first hinge frame 6. The design of the first hinge frame 6 and the second hinge frame 8 allows the buffer rod 7 to flexibly shift when impacted, so as to better adapt to impacts from different directions and angles. The second hinge frame 8 is connected to the outside of the battery mounting box 2.

[0031] During operation, when the main body housing 1 is subjected to a violent impact, the dent caused by the main body housing 1 causes the sliding block 5 on the sliding frame 3 to slide on the sliding frame 3. This causes the sliding block 5 to compress the shock-absorbing spring 4 on the sliding frame 3. The sliding block 5 drives the buffer rod 7 to stretch through the hinge frame 1 6. The hinge frame 2 8 at the other end of the buffer rod 7 slides on the sliding frame 3 along with the sliding block 5, thereby causing the buffer rod 7 to shift and compress the shock-absorbing spring 4 on the sliding frame 3. When the main body housing 1 is compressed, the buffer assembly is set between the main body housing 1 and the battery mounting housing 2. The buffer assembly provides cushioning and then compresses the battery mounting housing 2. The protection of the two housings and the buffer assembly protects the battery when the housing is impacted. The eight buffer assemblies are evenly distributed on the outside of the battery mounting housing 2, which can more effectively disperse and absorb the impact force generated during the impact. This dispersion effect makes the impact force borne by each buffer assembly smaller, thereby improving the overall durability and protecting the battery installed in the housing.

[0032] Example 1

[0033] like Figures 2-8 As shown, the cooling assembly includes a cooling pipe 9, which is installed on the outside of the battery mounting housing 2. Control valves 10 are installed at both ends of the cooling pipe 9. A hydraulic storage bottle 13 is installed at the bottom of the control valve 10. A valve control rod 11 is installed on the control valve 10. A first gear 12 is installed at the end of the valve control rod 11 away from the control valve 10. A mounting bracket 14 is installed on the hydraulic storage bottle 13, which is mounted on the outside of the battery mounting housing 2 via the mounting bracket 14. The sliding assembly includes two sets of spring telescopic rods 15, with four spring rods forming a group. One end of the two sets of spring telescopic rods 15 is installed on the outside of the same battery mounting housing 2. By adjusting the stiffness and length of the spring telescopic rods 15, responses and adjustments to different degrees of compression can be achieved. A common blocking rod 16 is installed at the end of the four spring telescopic rods 15 away from the battery mounting housing 2, and a first rack 17 is installed at one end of the blocking rod. The cooling pipe 9 is S-shaped and arranged on the outside of the battery mounting housing 2. Through the design of the S-shaped cooling pipe 9, liquid nitrogen can be distributed more evenly around the battery, improving cooling efficiency.

[0034] During operation, when the main body 1 is compressed and dented, the inner wall of the main body 1 compresses the barrier bar 16, which in turn compresses the spring telescopic bar 15, causing the barrier bar 16 to move inward. This causes the barrier bar 16 to move the first rack 17 connected to it inward. The first rack 17 then meshes with the first gear 12, causing the first gear 12 to rotate. The first gear 12 then rotates the valve control rod 11, causing the valve control rod 11 to open the control valve 10. This allows the liquid nitrogen storage bottle connected to the bottom of the control valve 10 to release the liquid nitrogen stored inside into the cooling pipe 9 through the control valve 10, thus cooling the battery inside the battery housing 2.

[0035] When the main housing 1 is squeezed and dented, the sliding component drives the cooling component to respond quickly. By squeezing the inner wall of the blocking rod 16, a series of mechanical actions are triggered, ultimately releasing liquid nitrogen from the hydraulic storage bottle 13 into the cooling pipe 9. As a cooling medium, the extremely low temperature of liquid nitrogen can quickly reduce the temperature inside the battery mounting housing 2, effectively suppressing battery thermal runaway and fire.

[0036] Example 1

[0037] like Figures 1-6 As shown, the fixing assembly includes two sliding rods 18, which are symmetrically positioned on the top of the battery mounting housing 2. Five sets of drive frames 19 are slidably connected to the sliding rods 18, with two drive frames 19 forming a group. Each set of drive frames 19 is equipped with the same heat-conducting plate 20. The design of the heat-conducting plate 20 helps to effectively conduct the heat generated by the battery, thereby improving heat dissipation efficiency. The five sets of drive frames 19 are installed on the battery mounting housing 2 by fixing bolts 21. During operation, the battery mounting position is adjusted by sliding the drive frames 19. The sliding frame 3 drives the heat-conducting plate 20 to adjust the length between the two heat-conducting plates 20. After adjustment, the fixing bolts 21 are installed on the outside of the battery mounting housing 2. A mounting hole can be drilled on the outside of the battery mounting housing 2, and the battery is placed between the two heat-conducting plates 20 for installation. Through the design of the sliding rods 18 and drive frames 19, the spacing between the heat-conducting plates 20 can be easily adjusted to adapt to the installation requirements of batteries of different sizes or models. This design improves the flexibility and adaptability of battery installation.

[0038] The battery mounting box 2 has several heat dissipation holes 23 and two air guide slots 22 on the inner top wall. The design of the air guide slots 22 not only increases the heat dissipation area but also helps to guide the airflow, allowing heat to dissipate more smoothly and thus improving heat dissipation efficiency. Two cooling fans 24 are installed on the main body 1, and a cover plate 25 is installed on the top of the main body 1. The heat dissipation holes 23 on the battery mounting box 2 and the air guide slots 22 on the inner top wall, together with the use of the cooling fans 24, can form an effective heat dissipation channel and accelerate the removal of heat from the box.

[0039] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A lithium battery Pack structure case, characterized by: Including the main body box (1), the inner wall of the main body box (1) is symmetrically provided with eight buffer assemblies, and a battery mounting box (2) is mounted in the main body box (1), eight buffer assemblies are mounted on both sides of the battery mounting box (2), and cooling assemblies and sliding assemblies are mounted on both sides of the battery mounting box (2), and a fixing assembly is arranged on the top of the battery box.

2. The lithium battery pack structure box according to claim 1, characterized in that: The buffer assembly comprises a sliding frame (3) mounted on the inner wall of the main body box (1), a sliding block (5) slidably connected to the sliding frame (3), a damping spring (4) mounted on the sliding frame (3), the other end of the damping spring (4) connected with the sliding block (5), a hinged frame one (6) mounted on the sliding block (5), a buffer rod (7) hinged to the hinged frame one (6), and a hinged frame two (8) hinged to the other end of the buffer rod (7) away from the hinged frame one (6), and the hinged frame two (8) is connected with the outer side of the battery mounting box (2).

3. The lithium battery pack structure box according to claim 1, characterized in that: The cooling assembly comprises a cooling pipeline (9) mounted on the outer side of the battery mounting box (2), control valves (10) mounted at both ends of the cooling pipeline (9), a hydraulic storage bottle (13) mounted at the bottom of the control valve (10), a valve control rod (11) mounted on the control valve (10), a first gear (12) mounted at the end of the valve control rod (11) away from the control valve (10), and a mounting frame (14) mounted on the hydraulic storage bottle (13), and the hydraulic storage bottle (13) is mounted on the outer side of the battery mounting box (2) through the mounting frame (14).

4. The lithium battery pack structure box according to claim 3, characterized in that: The sliding assembly comprises two groups of spring telescopic rods (15), four spring rods being a group, one end of the two groups of spring telescopic rods (15) being mounted on the outer side of the same battery mounting box (2), and the other end of the four spring telescopic rods (15) away from the battery mounting box (2) being provided with the same blocking rod (16), and one end of the blocking rod (16) being provided with a first rack (17).

5. The lithium battery pack structure box according to claim 1, characterized in that: The fixing assembly comprises two sliding rods (18) symmetrically arranged on the top of the battery mounting box (2), five groups of drive frames (19) slidably connected to the sliding rod (18), two drive frames (19) being a group, a heat conducting plate (20) being mounted on each group of drive frames (19), and the five groups of drive frames (19) being mounted on the battery mounting box (2) through fixing bolts (21).

6. The lithium battery pack structure box according to claim 1, characterized in that: A plurality of heat dissipation holes (23) are formed in the battery mounting box (2), two air guide grooves (22) are formed in the inner wall of the top of the battery mounting box (2), two heat dissipation fans (24) are mounted on the main body box (1), and a cover plate (25) is mounted on the top of the main body box (1).

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