Lithium battery with protective shell structure
Technical Field
The application relates to the technical field of electric vehicles, in particular to a lithium battery with a protective shell structure.
Background
The lithium battery has the advantages of light weight, high energy density and high charging speed, is widely used as a power battery of an electric vehicle, and can vibrate the frame of the electric vehicle due to the fact that a pavement is hollow when the electric vehicle runs, the lithium battery fixed on the frame of the electric vehicle can rub or even collide with a battery compartment or an adjacent lithium battery, and the lithium battery is wrapped by a protective shell.
The prior lithium battery protective shell is a closed shell in order to ensure enough structural strength, and the inner wall of the protective shell is tightly attached to the peripheral wall of the lithium battery.
The prior art scheme has the defect that a large amount of heat can be generated when the lithium battery is used, and the probability of occurrence of safety accidents at high temperature is easily increased by the closed lithium battery protective shell.
Disclosure of utility model
The application provides a lithium battery with a protective shell structure in order to increase the heat dissipation efficiency of the protective shell of the lithium battery.
The technical aim of the application is realized by the following technical scheme:
The utility model provides a lithium battery with protective housing structure, includes the battery body, battery body outside cover is equipped with the casing, the louvre has been seted up to the lateral wall of casing, and the rigid coupling has first elastic component in the casing, the opposite side rigid coupling of first elastic component has the angle board, the right angle opening inner edge of angle board is laminated mutually with the edge of battery body, and the planking rigid coupling of angle board has the second elastic component, the second elastic component is provided with a plurality ofly, and the one end rigid coupling of second other elastic component is in the casing.
Through adopting above-mentioned technical scheme, can ensure that the battery body can not collide with the casing, the second elastic component can increase the steadiness that the angle shaped plate supported the battery body, increases the cushioning effect to the battery body simultaneously, and the radiating effect of casing can be increased to the louvre that the casing lateral wall was seted up, sets up battery body and casing interval through first elastic component and angle shaped plate, increases the interior circulation of air space of casing, ensures the security and the stability of lithium cell work.
Optionally, a movable opening is formed in the shell, a heat conducting plate is fixedly connected to the side wall of the battery body, and the top of the heat conducting plate extends out of the movable opening and is fixedly connected with a heat radiating plate.
Through adopting above-mentioned technical scheme, the heat conduction board can be with the heat conduction of battery body production to the heating panel on, increases the radiating efficiency of lithium cell.
Optionally, the heat dissipation plate is integrally formed with heat dissipation fins, and the length direction of the heat dissipation fins is perpendicular to the length direction of the battery body.
By adopting the technical scheme, the radiating fin can increase the radiating efficiency of the radiating plate, and after the lithium battery is mounted on the electric vehicle, the length direction of the radiating fin is the same as the air flowing direction in the battery compartment of the electric vehicle, so that the radiating efficiency of the lithium battery can be increased.
Optionally, be provided with the third elastic component in the casing, the third elastic component is provided with a plurality ofly along the bottom surface interval of casing, is provided with the backup pad on the third elastic component.
Through adopting above-mentioned technical scheme, the third elastic component can reduce the range that the battery body rocked from top to bottom in the casing, can absorb the kinetic energy when the battery body drops simultaneously.
Optionally, the plurality of third elastic elements with the same length direction are in a group, and at least two groups of third elastic elements with different length directions are arranged on the bottom surface in the shell.
Through adopting above-mentioned technical scheme, multiunit third elastic component length direction mutually perpendicular sets up, can increase the frictional force between backup pad and the battery body bottom surface, when making the electric motor car travel on the complex road surface of jolting of environment, the casing can reduce the vibration that the battery body received.
Optionally, a reinforcing plate is fixedly connected to the inner side wall of the shell.
Through adopting above-mentioned technical scheme, the reinforcing plate can increase the overall structure intensity of casing, when suffering great striking, can cushion between battery body and casing, reduces the damage of striking to battery body.
Optionally, the heat dissipation holes extend to the plate surface of the reinforcing plate.
Through adopting above-mentioned technical scheme, ensure that the air in the casing can circulate.
Optionally, the casing is provided with electrode holes, at least two electrode holes are provided, a gasket is arranged at the orifice of one side of the electrode hole and the orifice of one side of the movable opening, and the gasket is positioned between the battery body and the casing.
Through adopting above-mentioned technical scheme, can reduce the friction between battery body top surface and the casing top, can reduce the collision with the casing top when the battery body reciprocates in the casing simultaneously, guarantee the security of lithium cell work.
In summary, the application has the following technical effects:
1. Through having set up casing, louvre, first elastic component and angle shaped plate, increase the buffering effect of casing to the battery body, the louvre can increase the radiating effect of casing, through first elastic component and angle shaped plate with battery body and casing interval setting, increase the interior circulation of air space of casing, guarantee the security and the stability of lithium cell work;
2. The heat conducting plate, the heat radiating plate and the heat radiating fins are arranged, so that heat generated by the battery body can be conducted to the heat radiating plate, and after the lithium battery is mounted on the electric vehicle, the length direction of the heat radiating fins is the same as the air flowing direction in the battery compartment of the electric vehicle, so that the heat radiating efficiency of the lithium battery can be improved;
3. Through having set up third elastic component and backup pad, can reduce the range that the battery body rocked from top to bottom in the casing, kinetic energy when can absorbing the battery body whereabouts simultaneously makes the electric motor car travel when the road surface of jolting of environment complicacy, and the casing can reduce the vibration that the battery body received.
Drawings
FIG. 1 is a block diagram of the external form of the present application;
FIG. 2 is a horizontal cross-sectional structural view of the present application;
fig. 3 is a view showing the structure of the present application after opening.
The reference numerals are 1, a battery body, 2, a shell, 21, a heat dissipation hole, 22, a movable opening, 23, an electrode hole, 3, a first elastic piece, 4, an angular plate, 5, a second elastic piece, 6, a heat conducting plate, 7, a heat dissipation plate, 71, heat dissipation fins, 8, a third elastic piece, 9, a support plate, 10, a reinforcing plate, 11 and a gasket.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
The embodiment of the application discloses a lithium battery with a protective shell structure, referring to fig. 1 and 2, the lithium battery comprises a battery body 1 which is in a cuboid shape, a shell 2 is sleeved outside the battery body 1, the shell 2 is in a cuboid shape, the side walls on two sides of the length direction of the shell 2 are provided with a plurality of radiating holes 21 at intervals, a first elastic piece 3 is fixedly connected at the connecting position between the side walls in the shell 2, in the embodiment, the first elastic piece 3 is a strip-shaped rubber plate, one side of the length direction of the first elastic piece 3 is fixedly connected with the shell 2, the other side is fixedly connected with an angular plate 4 with a right angle end face, a web plate of the angular plate 4 is attached to the edge of the battery body 1, a second elastic piece 5 is welded on the plate surface of the angular plate 4, which is close to one side of the shell 2, in the embodiment, the second elastic piece 5 is a spring, a plurality of second elastic pieces are arranged at intervals along the length direction of the angular plate 4, one end of the second elastic pieces 5 is connected with the angular plate 4, the other end of the second elastic pieces 5 is fixedly connected with the shell 2, and the length direction of the second elastic pieces 5 is perpendicular to the plate surface of the angular plate 4 or the shell 2.
When using this lithium cell that has protective housing structure, casing 2 can wrap up battery body 1 and protect lithium cell's lateral wall, when the electric motor car is gone, battery body 1 can rock in casing 2, this moment first elastic component 3 can firmly support the four sides of battery body 1 lateral wall, along with the removal of battery body 1 under the elasticity effect of first elastic component 3, ensure that battery body 1 can not collide with casing 2, second elastic component 5 can increase the steadiness that angle plate 4 supported battery body 1, increase the cushioning effect to battery body 1 simultaneously, the radiating effect of casing 2 can be increased to the louvre 21 that the casing 2 lateral wall was seted up, through first elastic component 3 and angle plate 4 with battery body 1 and casing 2 interval setting, increase the interior air circulation space of casing 2, ensure the security and the stability of lithium cell work.
Referring to fig. 1 and 2, the top surface of the casing 2 is provided with a movable opening 22, the movable opening 22 is strip-shaped and is provided with two movable openings 22, the two movable openings 22 are respectively provided at the two sides of the length direction of the casing 2, which are close to the side wall of the casing 2, the side walls of the two sides of the length direction of the battery body 1 are adhered with heat conducting plates 6, the plate surfaces of the heat conducting plates 6 are adhered with the end surfaces of the battery body 1, the tops of the two heat conducting plates 6 extend out of the movable opening 22 above the heat conducting plates 22 and are welded with a heat radiating plate 7 together, the plate surfaces of the heat radiating plates 7 are integrally formed with heat radiating fins 71, and the length direction of the heat radiating fins 71 is perpendicular to the length direction of the battery body 1.
When the lithium battery with the protective shell structure is used, the heat conducting plate 6 can conduct heat generated by the battery body 1 to the heat radiating plate 7, the heat radiating fins 71 on the heat radiating plate 7 can increase the heat radiating efficiency of the heat radiating plate 7, and after the lithium battery is mounted on an electric vehicle, the length direction of the heat radiating fins 71 is the same as the air flowing direction in the battery compartment of the electric vehicle, so that the heat radiating efficiency of the lithium battery can be increased.
Referring to fig. 3, a third elastic member 8 is disposed on the bottom surface in the housing 2, in this embodiment, the third elastic member 8 is a rubber tube, a plurality of third elastic members 8 are disposed along the bottom surface of the housing 2 at intervals, a plurality of third elastic members 8 are disposed in groups with the same length direction and sequentially at intervals, four groups of third elastic members 8 with different length directions are disposed on the bottom surface in the housing 2, and the length directions of each group of third elastic members 8 are mutually perpendicular to the length directions of two groups of third elastic members 8 adjacent thereto. One side of the third elastic piece 8 deviating from the shell 2 is fixedly connected with a supporting plate 9, the supporting plate 9 is a strip-shaped plate, the length of the supporting plate is identical to the length direction of the third elastic piece 8, the length of the plate surface of the supporting plate 9 is equal to the length of the third elastic piece 8 connected with the supporting plate 9, and the width of the supporting plate 9 is slightly smaller than the width of the third elastic piece 8 connected with the supporting plate.
When the lithium battery with the protective shell structure is used, the third elastic pieces 8 can reduce the amplitude of the vertical shaking of the battery body 1 in the shell 2, meanwhile, the kinetic energy of the battery body 1 falling can be absorbed, the length directions of the plurality of groups of the third elastic pieces 8 are mutually perpendicular, the friction force between the supporting plate 9 and the bottom surface of the battery body 1 can be increased, and when the electric vehicle runs on a bump road with complex environment, the shell 2 can reduce the vibration received by the battery body 1.
Referring to fig. 2 and 3, the side walls inside the housing 2 are welded with reinforcing plates 10, the reinforcing plates 10 are provided with four reinforcing plates and are respectively arranged on the four side walls of the inner wall of the housing 2, the reinforcing plates 10 are strip-shaped plates, the length directions of the reinforcing plates are perpendicular to the height direction of the housing 2, the plate surfaces on two sides of the length directions of the reinforcing plates 10 are bent towards the housing 2, the side edges on two sides of the length directions of the reinforcing plates 10 are welded with the housing 2, and the heat dissipation holes 21 extend to the plate surface on one side, deviating from the housing, of the reinforcing plates 10.
When using this lithium cell with protective housing structure, louvre 21 communicates to the reinforcing plate 10 and deviates from one side of casing 2, and the air in the guarantee casing 2 can circulate, and reinforcing plate 10 can increase casing 2's overall structure intensity, when suffering great striking, can cushion between cell body 1 and casing 2, reduces the damage of striking to cell body 1.
Referring to fig. 1, an electrode hole 23 for connecting an upper electrode of the battery body 1 is formed in the top surface of the housing 2, two electrode holes 23 are formed and are respectively located above the positive electrode and the negative electrode of the battery body 1, gaskets 11 are respectively arranged at the position of the electrode hole 23 facing one side of the battery body 1 and at the position of the movable opening 22 facing one side of the battery body 1, and the gaskets 11 are located between the battery body 1 and the housing 2.
When the lithium battery with the protective shell structure is used, the gasket 11 can reduce friction between the top surface of the battery body 1 and the top of the shell 2, and can reduce collision between the battery body 1 and the top of the shell 2 when moving up and down in the shell 2, so that the working safety of the lithium battery is ensured.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.