Background
With the improvement of life quality, the requirements of people on the environment are higher and higher, and in order to reduce particulate matters in urban air, the electric automobile without exhaust emission is developed rapidly.
However, with the increase of the quantity of electric vehicles, the phenomenon of spontaneous combustion caused by fire of the electric vehicles frequently occurs, and the development and popularization of the electric vehicles are greatly restricted, compared with electric bicycles, because the electric vehicles have higher speed, when the electric vehicles are braked and stopped rapidly or are impacted by accidents, larger acting force is generated on batteries, so that the batteries are extruded, deformed and leaked, and further spontaneous combustion is caused, and particularly, in the case of larger traffic accidents, the phenomenon of spontaneous combustion of the batteries caused by deformation and extrusion of the vehicles is very common.
Secondly, to the new energy automobile that trades the electricity, all realize the battery through the arm and change, need use comparatively accurate positioner, in order to guarantee that the battery package is passed in and out the battery compartment smoothly, its cooperation may be the interference, and battery package fastener also probably interferes simultaneously, may take place to become flexible and lead to the battery package frequent vibration damage.
Disclosure of Invention
In view of the above drawbacks of the background art, the present invention provides a technical solution for a battery compartment with a buffer device, which can slowly consume the kinetic energy of a battery pack to reduce the impact on the battery pack, and meanwhile, the battery pack is more convenient to replace, thereby solving the problems of the background art.
The invention provides the following technical scheme: the battery compartment with the buffer device comprises a battery compartment and a battery pack which are arranged on a vehicle chassis, wherein the lower edge of the battery compartment is fixedly connected with a detachable frame through a shearing pin, the lower end of the detachable frame is movably connected with a clamping plate, matching cavities are arranged between the front end surface and the rear end surface of the battery compartment and the battery pack, clamping bladders are arranged in the matching cavities, the clamping bladders are provided with valve ports for liquid pumping and injection, ejection bladders are arranged between the upper end surface of the detachable frame and the battery compartment, the clamping bladders on any side are communicated with the ejection bladders on two sides at the same time, a rotating rod is movably connected between the detachable frame and the battery compartment, the two ends of the rotating rod are connected through universal joints with damping, the bottom of the detachable frame is connected with a friction rod, and the friction rod and the rotating rod are synchronously unfolded.
Preferably, the dwang include with battery compartment swing joint's first universal joint and with can break away from frame swing joint's second universal joint, be connected with flexible rubber pole between first universal joint and the second universal joint, second universal joint swing joint has damping slide block, damping slide block through damping spout with can break away from frame swing joint, the direction of damping spout is the same with the vehicle advancing direction.
Preferably, the friction rod comprises a connecting rod, one end of the connecting rod is hinged to the bottom of the detachable frame through a hinged shaft, a coil spring is arranged in the hinged shaft, the other end of the connecting rod is fixedly connected with a friction head, the other end of the connecting rod is fixedly connected with a groove which is detachable from the bottom of the frame through a breaking nail, and the breaking nail and the shearing pin are broken synchronously.
Preferably, the snapping nail comprises a snapping head and a spring rod, one end of the spring rod is arranged in a hole formed in the side wall of the connecting rod, the snapping head is fixedly connected with the spring rod, the snapping head penetrates through the side wall of the detachable frame and is fixedly connected with the battery compartment, and an expansion groove is formed in the side wall of the detachable frame corresponding to the snapping head.
The invention has the following beneficial effects:
1. this battery compartment with buffer, when meeting with great striking, the dwang stretches out, changes the forward motion of battery package into the circular motion parallel in ground to with kinetic energy consumption under the effect of damping and friction, reduce the impact force that the battery package received, play better guard action to the battery package, thereby reduce the probability that the vehicle was fired on fire after the striking, play better protection to life and property.
2. This battery compartment with buffer has great interference fit between battery compartment and the battery package, the location and the installation of the battery package of being convenient for, and meanwhile, the tight bladder of clamp provides higher pressure all the time, guarantees that the clamp plate presss from both sides tightly to the battery package, guarantees that firm reduction of battery package assembly rocks, improves the reliability and the life of battery package.
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, a battery compartment with a buffering device includes a battery compartment 1 and a battery pack 2 disposed on a vehicle chassis, a detachable frame 3 is fixedly connected to a lower edge of the battery compartment 1 via a shear pin 4, a clamping plate 5 is movably connected to a lower end of the detachable frame 3, a sliding slot is disposed on a lower end surface of the detachable frame 3, a sliding block fixedly connected to the clamping plate 5 slides in the sliding slot, a fitting cavity 8 is disposed between a front end surface and a rear end surface of the battery compartment 1 and the battery pack 2, a clamping bladder 6 is disposed in the fitting cavity 8, the clamping bladder 6 is axially retractable and incapable of radially expanding, two sides of the clamping bladder 6 are respectively fixedly connected to the battery pack 2 and the clamping plate 5, i.e., the clamping bladder 6 retracts to drive the clamping plate 5 to slide, an end portion of the clamping bladder 6 is rough, and has a large friction force with the battery pack 2, an upper end surface of the clamping plate 5 is flush with a lower end surface of the battery pack 2, the clamping plate 5 is movably clamped into the battery pack 2 to fix the battery pack 2, in order to ensure the firmness of the fixation of the clamping plate 5 to the battery pack 2, the end of the clamping plate 5 is wedge-shaped or the lower end surface of the clamping bladder 6 is provided with an inclined surface, the clamping bladder 6 is provided with valve ports for liquid pumping and injection, the clamping bladders 6 on two sides are not communicated, the clamping bladders 6 on two sides are respectively provided with an independent valve port, an ejection bladder 7 is arranged between the upper end surface of the detachable frame 3 and the battery compartment 1, the clamping bladder 6 on either side is simultaneously communicated with the ejection bladders 7 on two sides, the clamping bladder 6 and the ejection bladder 7 are connected through a one-way valve to avoid the communication of the clamping bladders 6 on two sides, when a higher pressure is met, the pressure enters the ejection bladder 7 to pull off the shear pin 4, referring to fig. 2, a rotating rod 9 is movably connected between the detachable frame 3 and the battery compartment 1, and two ends of the damping 9 are connected through universal joints, dwang 9 is accomodate in the inslot at 1 bottom in battery compartment or can break away from 3 tops in the frame, expand after shear pin 4 breaks, the bottom that can break away from frame 3 is connected with friction lever 10, friction lever 10 expandes with dwang 9 is synchronous, after the striking, pressure is great, shear pin 4 is broken, dwang 9 expandes, dwang 9 is under the effect of 1 corner in battery compartment, do the rotation or the swing motion of injecing the range, dwang 9 has the contained angle with the focus, guarantee that linear motion can change circular motion, consume battery package 2's kinetic energy through circular motion.
Referring to fig. 3, the rotating rod 9 includes a first universal joint 91 movably connected to the battery compartment 1 and a second universal joint 93 movably connected to the detachable frame 3, the first universal joint 91 and the second universal joint 93 are both provided with a damping, a bendable rubber rod 92 is connected between the first universal joint 91 and the second universal joint 93 to expand a movement range, the second universal joint 93 is movably connected to a damping slider 94, the damping slider 94 is movably connected to the detachable frame 3 through a damping sliding groove 95, the direction of the damping sliding groove 95 is the same as a vehicle advancing direction, and as the space of the advancing direction is large, the vehicle can move to a larger extent, and the buffer effect is enhanced by enlarging the movement range of the damping slider 94 and the damping sliding groove 95.
Referring to fig. 4 and 5, the friction lever 10 includes a connecting rod 102, one end of the connecting rod 102 is hinged to the bottom of the detachable frame 3 through a hinge shaft 101, a coil spring is disposed in the hinge shaft 101 to ensure that the friction lever 10 can be opened quickly, the other end of the connecting rod 102 is fixedly connected with a friction head 104, the friction head 104 can be deformed to increase friction force, the friction lever 10 is integrally accommodated in a groove at the bottom of the detachable frame 3, the other end of the connecting rod 102 is fixedly connected with a groove at the bottom of the detachable frame 3 through a snapping pin 103, and the snapping pin 103 and the shearing pin 4 are snapped synchronously.
The snapping nail 103 comprises a snapping head 1032 and a spring bar 1033, one end of the spring bar 1033 is arranged in a hole formed in the side wall of the connecting rod 102, the snapping head 1032 is fixedly connected with the spring bar 1033, the snapping head 1032 penetrates through the side wall of the detachable frame 3 to be fixedly connected with the battery compartment 1, when the ejecting capsule 7 is ejected, the shearing pin 4 and the snapping head 1032 can be snapped synchronously, and in order to ensure that the broken part of the snapping head 1032 slides out smoothly under the action of the spring bar 1033, an expanding groove 1031 is arranged at the position, corresponding to the snapping head 1032, of the side wall of the detachable frame 3, so that the connection part of the snapping head 1032 and the detachable frame 3 is reduced.
The working principle and the working process of the invention are as follows:
during a vehicle collision, due to the fact that the speed is high, the pressure of the battery pack 2 on the clamping bladder 6 is high under the action of inertia, the pressure of the clamping bladder 6 is transmitted to the ejection bladder 7, the shearing pin 4 and the snapping pin 103 are snapped, the friction rod 10 and the rotating rod 9 are unfolded, due to the fact that the rotating rod 9 is eccentric to the detachable frame 3, the straight line of the battery pack 2 is converted into the circular motion of the battery pack 2, the rotation of the rotating rod 9 and the friction of the friction rod 10 with the ground consume kinetic energy, and the battery pack 2 stops moving in a short time.
When the battery is replaced, the liquid in the clamping bladder 6 is pumped out through the valve port, the clamping bladder 6 contracts to drive the clamping plate 5 to retract, and after the battery pack 2 is replaced, the liquid is injected, so that the clamping bladder 6 drives the clamping plate 5 to move, the battery pack 2 is clamped under the action of the wedge, and meanwhile, the friction force between the clamping bladder 6 and the battery pack 2 also fixes the battery pack 2.
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.