阅读说明：本技术 一种新能源汽车的电池仓防挤压装置 (New energy automobile's battery compartment prevents extrusion device ) 是由 崔丽丽 于 2021-08-17 设计创作，主要内容包括：本发明涉及新能源汽车技术领域,且公开了一种新能源汽车的电池仓防挤压装置,包括设于车辆底盘的电池仓和电池包,所述电池仓的上下端均开口设置,所述电池仓的上部通过第一剪切销钉固定连接有顶板。该新能源汽车的电池仓防挤压装置,在电池仓被挤压时,利用挤压的应力将电池包抛落车辆底部,进而避免电池包被挤压,降低了新能源汽车碰撞着火的几率,对于碰撞后短时间内难以逃离车外的车内乘客,大大提高了事故后乘客生还的概率,其次,在车辆底盘卡在障碍上时,先通过冲击嚢内的剪切增稠液体抵挡第一波冲击,再利用支撑骨架将静压分散,降低电池包的收到的压强,整体上对电池包起到较为可靠的保护。(The invention relates to the technical field of new energy automobiles, and discloses an anti-extrusion device for a battery compartment of a new energy automobile. This extrusion device is prevented in new energy automobile's battery compartment, when the battery compartment is extruded, utilize extruded stress to throw the battery package down vehicle bottom, and then avoid the battery package to be extruded, the probability that new energy automobile collided and catches fire has been reduced, to the car interior passenger who is difficult to escape the car in the short time after the collision, the probability that the passenger survived after the accident has improved greatly, secondly, when vehicle chassis card is on the obstacle, support through the shear thickening liquid in the impact bladder earlier and keep off first wave and strike, recycle support frame with static pressure dispersion, reduce the pressure of receiving of battery package, play comparatively reliable protection to the battery package on the whole.)

1. The utility model provides a new energy automobile's battery compartment anti-extrusion device, is including battery compartment (1) and the battery package (2) of locating vehicle chassis, its characterized in that: the upper end and the lower end of the battery compartment (1) are both provided with openings, the upper part of the battery compartment (1) is fixedly connected with a top plate (3) through a first shearing pin, the front end and the rear end of the top plate (3) are fixedly connected with side plates (4) through second shear pins, the bottoms of the two side plates (4) are fixedly connected with impact capsules (8), a supporting framework (6) is arranged in the impact bladder (8), the opposite surfaces of the two impact bladders (8) are fixedly connected with a resisting plate (7), the end of the support skeleton (6) near the middle is lower than the height of the end near the edge, the impact bladder (8) props against the side wall of the battery bin (1), an anti-skid block (9) is arranged above the impact bladder (8), a buffer cavity (5) is arranged between the side plate (4) and the battery bin (1), and the impact bladder (8) is filled with shear thickening liquid.

2. The device of claim 1, wherein the device for preventing the battery compartment of the new energy automobile from being squeezed comprises: be equipped with decurrent supporting spring (10) in cushion chamber (5), supporting spring (10) and curb plate (4) fixed connection, the other end of supporting spring (10) inserts in the hole that battery compartment (1) inner wall was predetermine.

3. The device of claim 1, wherein the device for preventing the battery compartment of the new energy automobile from being squeezed comprises: the supporting framework (6) is semicircular in section and downward in opening, a throttling hole is formed in the side wall of the supporting framework (6), and the supporting framework (6) is sealed with the end face and the side face of the impact capsule (8) in connection.

4. The device of claim 1, wherein the device for preventing the battery compartment of the new energy automobile from being squeezed comprises: still be equipped with supplementary fastening jar (11) between roof (3) and curb plate (4), one side of supporting framework (6) is equipped with loosening jar (12), be equipped with pretension spring (13) on the piston of loosening jar (12), the sectional area of supplementary fastening jar (11) is greater than the sectional area of loosening jar (12), loosening jar (12) and supplementary fastening jar (11) intercommunication.

Technical Field

The invention relates to the technical field of new energy automobiles, in particular to an anti-extrusion device for a battery compartment of a new energy automobile.

Background

The new energy automobile uses electric energy, reduces the emission of automobile exhaust on roads in cities, can well protect the air quality in the cities, simultaneously, compared with petroleum, electric power is renewable, more easily obtained, the use cost is lower, and in recent years, the number of the new energy automobiles is rapidly increased.

The new energy automobile generally uses the lithium cell to supply power for it, because the active attribute of lithium and the inside a large amount of flammable and explosive organic solvents that contain of lithium cell, consequently when the car bumps, the vehicle can lead to the damaged burning of battery because extrusion deformation, and the lithium cell burning is very violent, can ignite the vehicle in very short time, all has great threat to personnel's property.

Secondly, when the automobile is driven, due to the problems of roads or driving technologies, occasionally, the chassis of the automobile collides with obstacles or stones pressed and flying by the automobile collide with the chassis, and at the moment, the shell of the battery is punctured at a certain probability, so that the leakage of the battery is combusted, and the automobile is ignited.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the technical scheme of the anti-extrusion device for the battery compartment of the new energy automobile, the battery compartment is thrown down during extrusion, the battery compartment is well protected when being impacted, and the problems in the background technology are solved.

The invention provides the following technical scheme: the utility model provides a new energy automobile's battery compartment extrusion preventing device, is including locating vehicle chassis's battery compartment and battery package, the equal opening setting of last lower extreme of battery compartment, the upper portion of battery compartment is through first shear pin fixedly connected with roof, the front and back end of roof all is through second shear pin fixedly connected with curb plate, two the equal fixedly connected with in bottom of curb plate strikes the bladder, it is equipped with supporting framework in the bladder to strike, two the equal fixedly connected with of the face that strikes the bladder is relative supports tight board, the tip of the nearly middle part of supporting framework is less than the height of the tip near the edge, strike the bladder and support the lateral wall of battery compartment, the top of striking bladder is equipped with the non slipping spur, be equipped with the cushion chamber between curb plate and the battery compartment, it is filled with shear thickening liquid to strike the bladder.

Preferably, a support spring which inclines downwards is arranged in the buffer cavity, the support spring is fixedly connected with the side plate, and the other end of the support spring is inserted into a hole which is preset in the inner wall of the battery bin.

Preferably, the support frame is semicircular in cross section and has a downward opening, the side wall of the support frame is provided with an orifice, and the connection between the support frame and the end face and the side face of the impact capsule is sealed.

Preferably, an auxiliary fastening cylinder is further arranged between the top plate and the side plate, a loosening cylinder is arranged on one side of the supporting framework, a pre-tightening spring is arranged on a piston of the loosening cylinder, the sectional area of the auxiliary fastening cylinder is larger than that of the loosening cylinder, and the loosening cylinder is communicated with the auxiliary fastening cylinder.

The invention has the following beneficial effects:

1. this extrusion device is prevented in new energy automobile's battery compartment when the battery compartment is extruded, utilizes extruded stress to throw the battery package vehicle bottom, and then avoids the battery package to be extruded the damage, has reduced the probability that new energy automobile collided and catches fire, to being difficult to flee from the interior passenger of car in the short time after the collision, has improved the probability that the passenger survived behind the accident greatly.

2. This squeezing means is prevented in new energy automobile's battery compartment when vehicle chassis card is on the obstacle, withstands first ripples impact through the shear thickening liquid in the impact bladder earlier, utilizes the support chassis dispersion with the static pressure again, reduces the pressure that receives of battery package to still can get into the cockpit when pressure is too big, play comparatively reliable protection to the battery package on the whole, improve the intact probability of battery package after being strikeed.

Drawings

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

FIG. 2 is a bottom view of the structure of the present invention;

FIG. 3 is a schematic view of an impact bladder of the present invention;

fig. 4 is a schematic structural view of the auxiliary tightening cylinder and the loosening cylinder in the present invention.

In the figure: 1. a battery compartment; 2. a battery pack; 3. a top plate; 4. a side plate; 5. a buffer chamber; 6. a support framework; 7. a propping plate; 8. an impact bladder; 9. anti-skid blocks; 10. a support spring; 11. an auxiliary fastening cylinder; 12. loosening the cylinder; 13. and pre-tightening the spring.

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.

Referring to fig. 1 and 2, an anti-extrusion device for a battery compartment of a new energy automobile comprises a battery compartment 1 and a battery pack 2, which are arranged on a vehicle chassis, wherein both the upper end and the lower end of the battery compartment 1 are open, the upper part of the battery compartment 1 is fixedly connected with a top plate 3 through a first shear pin, the decoration in the vehicle is connected with a vehicle floor and bypasses the top plate 3, both the front end and the rear end of the top plate 3 are fixedly connected with side plates 4 through second shear pins, both the bottoms of the two side plates 4 are fixedly connected with impact bladders 8, the side plates 4 are connected with the impact bladders 8 in a clamping manner or in a bolt manner, so that the maintenance and the replacement of the battery pack 2 are facilitated, a support framework 6 is arranged in the impact bladders 8, the impact bladders 8 support the support framework 6 to ensure that the impact bladders 8 are not deformed greatly, both the opposite surfaces of the two impact bladders 8 are fixedly connected with abutting plates 7, and the two abutting plates 7 abut against each other and are fixed by third shear pins, the end part of the support skeleton 6 near the middle part is lower than the end part near the edge, that is, the support skeleton 6 is slightly inclined downwards, when the two support skeletons are pressed against each other, the two support skeletons 6 are pressed against each other and move downwards, the impact bladder 8 is pressed against the side wall of the battery bin 1, in order to avoid the deformation of the battery bin 1 and the pressing of the impact bladder 8, the impact bladder 8 slides downwards, the anti-skid block 9 is arranged above the impact bladder 8, the anti-skid block 9 corresponds to the position of the support skeleton 6, the deformation force is ensured to be fully transmitted to the impact bladder 8, the battery pack 2 is arranged in a space formed by the top plate 3, the impact bladder 8 and the side plate 4, the battery pack 2 is fixedly connected with the side plate 4, in order to avoid the deformation and directly press and deform the battery pack 2, the buffer cavity 5 is arranged between the side plate 4 and the battery bin 1, when a vehicle collides with an obstacle or is deformed, the deformation effect of deformation makes the support skeleton 6 move downwards, and then breaks the third shear pin and the second shear pin, the battery pack 2 is made to fall into the vehicle bottom, the battery pack 2 is prevented from being extruded, the impact bladder 8 is filled with shear thickening liquid, when flying stones or a chassis below the impact bladder collides with an obstacle, the viscosity of the liquid is instantly increased to resist the impact force of a first wave, if the chassis, particularly the corresponding position of the battery bin 1, is clamped on the obstacle, one part of the pressure is transmitted to the side wall of the battery bin 1 due to the fact that the two impact bladders 8 are slightly inclined downwards, the other part of the pressure is uniformly dispersed to the bottom end of the battery pack 2 through the liquid under the action of the other part of the pressure, the local pressure is prevented from being too large, the battery is deformed, and when the pressure is too large, the first shear pin is pulled off, and the battery bin 1 is pressed into the cab.

Wherein, be equipped with decurrent supporting spring 10 in the cushion chamber 5, supporting spring 10 and curb plate 4 fixed connection, during the hole that the inner wall of battery compartment 1 was predetermine was inserted to the other end of supporting spring 10, during normal use, supporting spring 10 played the effect of supporting with the buffering, and after colliding, when the second shearing pin was broken, in driving curb plate 4 and battery package 2 broke away from battery compartment 1 fast in the decurrent effect of supporting spring 10, then avoided battery package 2 to be extruded.

Referring to FIG. 3, the support frame 6 is semicircular in cross section and has a downward opening, the side wall of the support frame 6 is provided with an orifice, the connection between the support frame 6 and the end face and side face of the impact capsule 8 is sealed, part of the liquid is located below the support frame 6 under the action of its own weight, and when the impact capsule 8 is squeezed, the liquid below is squeezed to the upper side through the orifice to perform the energy dissipation and buffering functions.

Referring to fig. 4, an auxiliary fastening cylinder 11 is further arranged between the top plate 3 and the side plate 4, a piston rod of the auxiliary fastening cylinder 11 is connected with a pin, the top plate 3 and the side plate 4 are fixed, a loosening cylinder 12 is arranged on one side of the supporting framework 6, a pre-tightening spring 13 is arranged on a piston of the loosening cylinder 12, the sectional area of the auxiliary fastening cylinder 11 is larger than that of the loosening cylinder 12, the loosening cylinder 12 is communicated with the auxiliary fastening cylinder 11, the pressures of the loosening cylinder 12 and the auxiliary fastening cylinder 11 are the same, the sectional area of the auxiliary fastening cylinder 11 is larger, namely the auxiliary fastening cylinder 11 needs larger pressure to be pulled, when a vehicle is collided at high speed or rolls due to an accident, the top plate 3 and the side plate 4 can be subjected to larger acting force, in order to avoid the battery pack 2 from being accidentally thrown out, the second shearing pin is prevented from being pulled apart by the auxiliary fastening cylinder 12, and when the auxiliary fastening cylinder 11 is extruded, the auxiliary fastening cylinder 11 can be extended under smaller action, so that the second shear pin can be normally broken during extrusion.

The working principle and the working process of the invention are as follows:

when violent striking takes place at the vehicle, the chassis is by extrusion deformation, drives battery compartment 1 and warp, and extruded power is used in supporting framework 6, because two supporting framework 6 slightly downward sloping, move towards the below when the extrusion, and the third shear pin between the tight board 7 of breaking is further broken the shear pin between curb plate 4 and the roof 3, makes curb plate 4 and battery package 2 whole drop from battery compartment 1, falls into the vehicle bottom, avoids being further extruded.

When the bottom of the vehicle collides with an obstacle, the violent impact of the first wave impacts the impact bladder 8, becomes rapidly hardened, resists the initial impact force, prevents the battery pack 2 from being crushed, and after the impact, a part of static pressure is transmitted to the side wall of the battery compartment 1 through the support framework 6, and a part of static pressure is uniformly distributed on the bottom end of the battery pack 2 by liquid, so that the battery pack 2 is well protected.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.