[1]
Technical Field
[2]
This application relates to the field of batteries, in particular to a battery box, a separator for the battery pack, the battery pack.
[3]
Background Art
[4]
With the electric automobile technology and the technical constant development of lithium ion battery, lithium ion battery pack in electric vehicles is gaining wide use. Lithium ion battery pack in the electric car as an important part of, as a main part of the battery pack of the battery box technology is rapidly developing. The main role of the battery box is protect the internal battery module free of external impact.
[5]
In order to ensure that the battery module can be smoothly into the inside of the battery case, the battery needs to be arranged in the inner cavity of the large enough. If direct the battery module is placed in the larger battery, the battery module in the horizontal direction is not due to the limit, or emergency brake of the vehicle is running in the process, the battery module easy-in level of activity. To this end, the battery in the battery box manufacturer usually welded in the baffle (or said baffle plate), the battery box to the entire large inner cavity is divided into a plurality of small cavity, some small cavity used for arranging the battery module, there are small cavity for arranging other pieces is. After assembly into the battery pack, part of the die set of the battery separator touches the side in order to limit the horizontal movement of the battery module, the battery module in the horizontal direction of positioning.
[6]
However, the above-mentioned baffle generally adopts a relatively high density of the metal material. The battery box is installed in the separator will be increased after the dead weight of the battery, thereby reducing the energy density of the battery.
[7]
Content of the invention
[8]
The object of the application is: against the above problem, provides a novel baffle structure, configuration this baffle plate of the battery box and with such a battery case of the battery pack, aimed at reducing the weight of the partition, in order to enhance the energy density of the battery pack at the same time, make the baffle has higher bending resistance.
[9]
The application of the technical scheme is:
[10]
A battery box, including:
[11]
The top opening of the box body,
[12]
Disposed on the base of the box cover and the top of the box body, and
[13]
Welded and fixed on the partition in the box body;
[14]
The baffle includes:
[15]
The vertical arrangement of the main sheet,
[16]
Since the top edge of the main plate extends in a transverse direction to form the upper edge, and
[17]
Since the bottom edge of the main body extends in a transverse direction to form the lower hem of the;
[18]
The sheet body provided with a plurality of flanging of the lightening hole, and said edge turning the flanging of the lightening hole, the upper edge and the lower edge is located on the same side of the main body.
[19]
This application this battery box in on the basis of the above technical scheme, also comprises the following preferred scheme:
[20]
The upper edge and the lower edge in the direction perpendicular to the main sheet size is greater than the width of the turning side of the flanging of the lightening hole.
[21]
The upper edge and the lower edge are horizontally arranged.
[22]
The upper hem away from the outer sides of the main sheet to extend downward to form vertical hem.
[23]
Wherein the box body comprises the bottom wall of the box body and arranged around the bottom wall of the box body around the side wall of the box, the lower edge of the bottom wall of the tank body with the welded and fixed, the vertical folding edge with the side wall of said case is welded and fixed.
[24]
The edge turning weight-reducing hole is the waist-hole.
[25]
The edge turning weight reducing holes in the main board body tilting arrangement.
[26]
Each of said edge turning of the lightening hole arranged at even intervals along the horizontal direction.
[27]
This application is used for the battery of the baffle, the baffle including:
[28]
The vertical arrangement of the main sheet,
[29]
Since the top edge of the main plate extends in a transverse direction to form the upper edge, and
[30]
Since the bottom edge of the main body extends in a transverse direction to form the lower hem of the;
[31]
The sheet body provided with a plurality of flanging of the lightening hole, and said edge turning the flanging of the lightening hole, the upper edge and the lower edge is located on the same side of the main body.
[32]
The application of the battery pack, including the battery contained in said battery box and a battery in the module, the battery box by adopting the above structure, the battery module with the main board arranged the radius of, and the battery module and said edge turning of the lightening hole flanging are respectively positioned at two facing away from the side of the main body.
[33]
The invention has the advantages of:
[34]
1. The application on the baffle structure a large number of the hole flanging in lightening of the lightening hole - flanging, in reducing baffle material, reducing the weight of the plate at the same time, the use of the hole flanging in the flanging on the strengthening of the bending capacity of the of the baffle plate, the baffle plate during running of the vehicle by the battery module or other pieces is squeezed by the level of the bending distortion.
[35]
2. Flanging weight reducing holes in the waist-hole structure, and flanging of the lightening hole in the head and a tilting arrangement, this polygonal edges of the can at the same time to significantly improve the level of the baffle bending and vertical bending resistance.
[36]
3. The main sheet and the top and bottom are formed respectively on the upper and the lower hem, not to the flanging of the lightening hole with the role of the flanging of the shelter, but also on the upper and the lower edge of the baffle plate can further improve the level of bending capacity, at the same time is set on the upper and the lower after folding, the baffle more easily welded with the box body.
[37]
Description of drawings
[38]
In order to more clearly illustrate the application of the embodiment of the technical scheme, to below in the description of the embodiment of the need to use the diagram for a brief account of, is described below in the Figure only is some embodiments of this application, for the ordinary skill in the art is concerned, in the creative work of the premise of pay, can also be on the basis of these with photos to obtain the other of the Figure.
[39]
Figure 1 is the internal three-dimensional structure diagram of an embodiment of the invention battery pack;
[40]
Figure 2 is the three-dimensional structure diagram of the battery module is removed in Figure 1;
[41]
Figure 3 is the internal structure of the top view…