CN212648351U

CN212648351U - Fixing device for power battery of electric automobile

Info

Publication number: CN212648351U
Application number: CN202021977964.9U
Authority: CN
Inventors: 刘忠强; 黄义勇
Original assignee: Sichuan Engineering Technical College
Current assignee: Sichuan Engineering Technical College
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-03-02
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses an electric automobile power battery fixing device, including the protecting crust, be provided with the battery package that is used for installing the battery in the protecting crust, the protecting crust both ends are located and are provided with a damper between protecting crust and the battery package. The utility model discloses set up first damper and second damper between protecting crust and battery package, rock the pressure that produces to the protecting crust and cushion, reduce the protecting crust and rock damage and the influence to the battery package, increased the security of device and the stability of battery installation, play fine protecting effect to the battery of internally mounted, increased power battery's security performance.

Description

Fixing device for power battery of electric automobile

Technical Field

The utility model relates to a power battery technical field, in particular to electric automobile power battery fixing device.

Background

The electric automobile is one of new energy automobiles, adopts a single storage battery as an energy storage power source, and utilizes the storage battery as the energy storage power source.

When an automobile runs, collision or bumping phenomena often occur, most of the existing electric automobile power battery packs do not have the damping function, so that the battery packs are easy to damage in vibration or impact, and the service life of the battery packs is shortened. Meanwhile, most of the existing batteries are fixed together and cannot be taken down, so that after a single battery is damaged, a worker cannot replace the single battery and can only replace the whole battery pack, the working efficiency of the worker is reduced, and meanwhile, the maintenance cost of the battery pack is also improved, and therefore, the power battery fixing device of the electric automobile needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses damage easily in vibrations or impact to the battery package that exists among the prior art, can't change the scheduling problem to single battery after the battery harm, provide an electric automobile power battery fixing device.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the fixing device for the power battery of the electric automobile comprises a protective shell, wherein a battery pack for mounting the battery is arranged in the protective shell, and first damping assemblies are arranged at two ends of the protective shell between the protective shell and the battery pack;

first damper includes relative first fixed plate and the second fixed plate that sets up, be provided with two telescopic links between first fixed plate and the second fixed plate, first fixed plate and second fixed plate are connected respectively at the telescopic link both ends, the cover is equipped with first spring on the telescopic link respectively, first spring both ends are connected respectively or the butt is on first fixed plate and second fixed plate, first fixed plate and second fixed plate are connected respectively or the butt is on protecting crust and battery package.

In the above technical scheme, further, be provided with second damper between first fixed plate and the second fixed plate, second damper is including setting up the spacing frame on the second fixed plate, be provided with the second spring in the spacing frame, second spring both ends are provided with the slider respectively, the slider cooperation sets up in spacing frame and between the spacing frame sliding fit, be provided with the connecting rod between slider and the telescopic link that is located near its one side position, the connecting rod both ends respectively with the slider with the telescopic link between articulated.

Among the above-mentioned technical scheme, furtherly, be provided with a plurality of battery mounting grooves in the battery package, it is provided with the slot to lie in battery mounting groove one end on the battery package, battery one end tip be provided with slot complex inserted block, the inserted block corresponds the setting in the slot when the battery is installed in the battery mounting groove.

In the above technical scheme, further, it is provided with the mounting hole respectively to be located its both sides on the inserted block, be provided with the third spring in the mounting hole, third spring tip is provided with spacing post, spacing post one end is stretched out outside the mounting hole, the slot both sides do not are provided with the spacing groove with the mounting hole corresponds position punishment, spacing post one end can cooperate and set up the spacing inslot.

In the above technical scheme, further, the battery is provided with a handle at one end opposite to the insertion block.

In the above technical scheme, further, be provided with the antiskid cover on the handle.

In the above technical scheme, further, the protection shell is provided with a disassembly and assembly hole at a position corresponding to one end of the battery installation groove, and the disassembly and assembly hole is provided with a sealing cover plate.

In the technical scheme, furthermore, a plurality of locking plates are respectively and fixedly arranged on the outer sides of the two ends of the protective shell, and locking holes are formed in the locking plates.

The utility model discloses the beneficial effect who has:

1) the utility model discloses set up first damper and second damper between protecting crust and battery package, rock the pressure that produces to the protecting crust and cushion, reduce the protecting crust and rock damage and the influence to the battery package, increased the security of device and the stability of battery installation, play fine protecting effect to the battery of internally mounted, increased the security performance of battery.

2) The battery is respectively and independently installed in the battery pack, and the battery is stably installed in the battery pack by arranging the matched slot and the insertion block structure, so that the stability of battery installation is improved; and the single battery can be conveniently mounted and dismounted, and the single battery can be conveniently replaced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the structure of the present invention.

Fig. 3 is a partial schematic view of a portion a of fig. 1.

Fig. 4 is a partial schematic view of fig. 1 at B.

In the figure: 1. the protective shell, 2, the battery package, 3, the battery, 4, first fixed plate, 5, the second fixed plate, 6, the telescopic link, 7, first spring, 8, spacing frame, 9, the connecting rod, 10, the slider, 11, the second spring, 12, the slot, 13, the inserted block, 14, the mounting hole, 15, the third spring, 16, spacing post, 17, spacing groove, 18, the handle, 19, the antiskid cover, 20, the lockplate, 21, the locking hole, 22, the dismantlement hole, 23, sealed apron.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the fixing device for the power battery of the electric vehicle in the embodiment includes a protective shell 1, a battery pack 2 for installing a battery 3 is arranged in the protective shell 1, first damping assemblies are arranged between the protective shell and the battery pack at two ends of the protective shell 1, the first damping assemblies are arranged between the protective shell and the battery pack and used for damping between the protective shell and the battery pack, impact on the battery pack when the protective shell is subjected to external force is absorbed, influence on the internal battery pack is reduced, and effective protection is performed on the internal battery pack.

As shown in fig. 3, the first damping assembly in this embodiment includes a first fixing plate 4 and a second fixing plate 5 which are oppositely disposed, two telescopic rods 6 are disposed between the first fixing plate 4 and the second fixing plate 5, and the two telescopic rods 6 are symmetrically disposed at two ends of the first fixing plate 4 and the second fixing plate 5, respectively; 6 both ends of telescopic link are fixed connection respectively on first fixed plate 4 and second fixed plate 5, the cover is equipped with first spring 7 on the telescopic link 6 respectively, first spring 7 both ends are connected respectively or the butt is on first fixed plate 4 and second fixed plate 5, and first spring provides the buffering effort for first fixed plate and second fixed plate. The telescopic rod can adopt the existing telescopic structure, and plays a role in guiding the first spring while stretching along with the first spring.

First fixed plate 4 and second fixed plate 5 are connected respectively on protecting crust 1 and battery package 2, perhaps first fixed plate 4 fixed connection is in the inboard of protecting crust, and second fixed plate 5 realizes being connected between first damper and protecting crust and the battery package through the effort butt of first spring to the battery package.

In order to protect the battery pack more effectively, a second shock-absorbing assembly is further disposed between the first fixing plate 4 and the second fixing plate 5, and the second shock-absorbing assembly further provides a buffer between the first fixing plate and the second fixing plate.

The second damping component comprises a limiting frame 8 arranged on the second fixing plate, the limiting frame 8 is arranged between the two telescopic rods 6, a second spring 11 is arranged in the limiting frame 8, sliding blocks 10 are arranged at two ends of the second spring 11 respectively, the sliding blocks 10 are arranged in the limiting frame 8 in a matched mode and are in sliding fit with the limiting frame, a connecting rod 9 is arranged between each sliding block 10 and the corresponding telescopic rod 6 located on one side of the corresponding sliding block and located, and two ends of each connecting rod 9 are hinged to the corresponding sliding blocks 10 and the corresponding telescopic rods 6. The second damper assembly sets up between first fixed plate and second fixed plate, when taking place relative motion between first fixed plate and the second fixed plate and move, the second spring takes place elastic deformation and provides the buffering between first fixed plate and the second fixed plate, further reduces the influence of external force to the battery package.

When the protective shell provided with the battery pack is installed in an electric automobile for use, vibration is transmitted to the protective shell along with the movement of the automobile, so that the protective shell shakes; the protecting crust is when rocking, and concertina movement is to the telescopic link, and the telescopic link drives the connecting rod in concertina movement and takes place to rotate, makes the slider on the connecting rod other end take place the relative slip in spacing frame, and first spring and second spring provide the buffering effort to above-mentioned motion in this process to reduce the protecting crust and rock the influence that causes the battery package, thereby reduce the influence to internal battery, carry out effectual protection to the battery, effectively improve power battery's security.

Be provided with a plurality of battery mounting grooves that are used for installing the battery in the battery package 2, the battery is installed respectively in independent battery mounting groove, and it is provided with slot 12 to lie in battery mounting groove one end on the battery package 2, 3 one end tip of battery be provided with slot complex inserted block 13, inserted block 13 corresponds the setting in slot 12 when battery 3 is installed in the battery mounting groove. Carry out independent fixed mounting to each battery through setting up the battery mounting groove, conveniently to the installation and the change of battery, can carry out stable installation with the battery in the battery package through setting up corresponding slot and inserted block structure.

As shown in fig. 4, mounting holes 14 are respectively formed in the two sides of each insert 13, a third spring 15 is arranged in each mounting hole 14, a limiting post 16 is arranged at the end of each third spring 15, and one end of each limiting post 16 extends out of each mounting hole 14; the positions of the two sides of the slot 12 corresponding to the mounting holes are respectively provided with a limiting groove 17, and one end of the limiting column 16 can be arranged in the limiting groove 17 in a matching manner. When the battery is installed, the insertion blocks are correspondingly inserted into the corresponding insertion grooves respectively, and the limiting columns are correspondingly inserted into the limiting grooves at the moment, so that the stable connection between the battery and the battery pack is realized, and the stability and the reliability of the installation of the battery in the battery pack are ensured. Meanwhile, the limiting column and the limiting groove are elastically connected through a third spring, and the battery can be conveniently detached and installed.

The battery 3 is provided with a handle 18 at an end opposite to the insert. The handle 18 is provided with an anti-slip sleeve 19, which is convenient for workers to install and detach the battery.

The outer sides of two ends of the protective shell 1 are respectively and fixedly provided with a plurality of locking plates 20, locking holes 21 are formed in the locking plates 20, and the protective shell is conveniently and fixedly installed through screws.

The protection shell 1 is provided with dismounting holes 22 at positions corresponding to one end of the battery mounting groove, and the dismounting holes 22 are provided with sealing cover plates 23; through setting up the dismouting hole with the dismouting of convenience to the battery, sealed apron seals dismouting hole department, makes the inside confined space that forms of protecting crust, carries out effectual protection to inside battery.

The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.

Claims

1. The fixing device for the power battery of the electric automobile is characterized by comprising a protective shell, wherein a battery pack for mounting the battery is arranged in the protective shell, and first damping assemblies are arranged at two ends of the protective shell between the protective shell and the battery pack;

2. The fixing device for the power battery of the electric automobile according to claim 1, wherein a second damping assembly is arranged between the first fixing plate and the second fixing plate, the second damping assembly comprises a limiting frame arranged on the second fixing plate, a second spring is arranged in the limiting frame, sliding blocks are arranged at two ends of the second spring respectively, the sliding blocks are arranged in the limiting frame in a matched mode and in a sliding fit with the limiting frame, a connecting rod is arranged between the sliding blocks and the telescopic rod located at a position close to one side of the sliding blocks, and two ends of the connecting rod are hinged to the sliding blocks and the telescopic rod respectively.

3. The fixing device for the power battery of the electric automobile according to claim 1 or 2, wherein a plurality of battery installation grooves are formed in the battery pack, an insertion groove is formed in one end of the battery pack, which is located in the battery installation groove, an insertion block matched with the insertion groove is formed in the end portion of one end of the battery, and the insertion block is correspondingly arranged in the insertion groove when the battery is installed in the battery installation groove.

4. The fixing device for the power battery of the electric vehicle as claimed in claim 3, wherein the insertion block is provided with mounting holes at two sides thereof, a third spring is provided in the mounting hole, a limiting post is provided at an end of the third spring, one end of the limiting post extends out of the mounting hole, limiting grooves are provided at two sides of the slot and corresponding positions of the mounting holes, and one end of the limiting post can be matched with the limiting grooves.

5. The power battery fixing device for the electric automobile as claimed in claim 3, wherein a handle is provided at an end of the battery opposite to the insertion block.

6. The fixing device for the power battery of the electric automobile according to claim 5, characterized in that the handle is provided with an anti-slip sleeve.

7. The fixing device for the power battery of the electric automobile according to claim 3, wherein the protection shell is provided with a disassembling hole at a position corresponding to one end of the battery installation groove, and the disassembling hole is provided with a sealing cover plate.

8. The fixing device for the power battery of the electric automobile according to claim 1, wherein a plurality of locking plates are fixedly arranged on the outer sides of two ends of the protective shell respectively, and locking holes are formed in the locking plates.