[1]
Technical Field
[2]
The present application relates to the field of energy storage device production technology, in particular to a battery module and a battery pack.
[3]
Background Art
[4]
In the field of power in the battery industry, battery pack is a large system, composed of a plurality of battery assembly of the, present in the industry is the way the assembly of the: first a plurality of battery pack into a a battery module, the plurality of battery module assembly into the battery pack. The battery module of the assembly by means of the key, its assembling process are as follows: first of all the plurality of battery according to certain of the are connected together in parallel, and the two ends of the along the arrangement direction of each provided with one of the end plates, the side plates of the battery arranged in the side, and using the fixture in the direction of the batteries are arranged to apply a preload, then to use welding equipment and the end plate and the side plate are welded together, to form a battery module.
[5]
But this kind of battery module assembly mode, need specialized tool applies pre-tightening force, increasing the assembly cost; and the end plate and the side plate of the connection strength of the welding seam is relatively low, the jolting vibration impact in the process, the risk of failure of the cracking of the weld bead to exist, at the same time the end plate and the side plate in the welding process, resulting from the presence of the defects of the short circuit and the like.
[6]
Content of the utility model
[7]
The invention provides a battery module and a battery pack, can solve the above problems.
[8]
The application of the 1st aspect provides a battery module, comprising:
[9]
Shell,
[10]
A plurality of cells, a plurality of the battery is arranged in the shell;
[11]
The foamed structure glue, between the cell and the shell, two adjacent the battery between the foam structure are filled with glue.
[12]
Preferably, the inner wall of the shell is provided with a positioning structure, the adjacent two said battery through said positioning structure are arranged at intervals.
[13]
Preferably, the internal wall includes two opposite side walls, of the two side walls are both provided with the positioning structure.
[14]
Preferably, the two said side walls are provided with a plurality of the positioning structure, and is located between the two on the side wall of the positioning structure corresponding to one by one; of any two adjacent the battery is set between a group of corresponding said positioning structure.
[15]
Preferably, the positioning structure is a strip-shaped structure, and the locating structure extends in a direction along the height of the battery.
[16]
Preferably, the housing comprises an integrally formed side frame, the battery is arranged on the side frame.
[17]
Preferably, the [...] comprises two opposite end plates and the opposite two side plates, the adjacent end plate connected with the side plate, and the end plate thickness is larger than the thicknesses of the side plates; each of the battery along the two blocks are arranged in the opposite direction of the end plate.
[18]
Preferably, the [...] is a circular structure; the housing also includes a closed [...] opening at one end of the bottom plate, the bottom plate with the battery between the glue filled with said foam structure.
[19]
Preferably, the shell is an integral molding structure.
[20]
The application of the in the 2nd provides a battery pack, including the above any of the battery module.
[21]
The present invention provides the technical scheme can achieve the following beneficial effects:
[22]
The battery module provided by the application, in the course of assembling can be directly coated on the surface of the foamed structure adhesive mounted to the housing in the battery are sequential, then change the environmental parameter to be foamed and solidified, in the foamed structural adhesive foam formed in the hole, to realize foaming structure glue foaming, the use of foamed structure glue foaming force generated and foamed structure to realize the binding power of the glue itself two adjacent battery between the battery and the shell and fixed, therefore, the battery module does not need the special tool pressing the battery, thereby saving the fixture, the assembly cost is lowered; and the foamed foaming structure glue has a certain compression performance, when the battery force generated is big enough, can provide space for the swelling of the battery, the expansive force of the absorption cell.
[23]
It should be understood that, the above general description of the details of the latter article and described is only illustrative, not limiting the invention.
[24]
Description of drawings
[25]
Figure 1 is the structure diagram of the battery module provided by the application of a specific embodiment;
[26]
Figure 2 is the partially enlarged view of I at in Figure 1;
[27]
Figure 3 is the structure diagram of the battery module provided by the application of a specific embodiment foamed structure glue not foaming;
[28]
Figure 4 is the partial enlarged view of II is in Figure 3;
[29]
Figure 5 is the structure diagram of the battery module provided by the application in the, shell of an embodiment.
[30]
The Figure mark:
[31]
10 - Shell;
[32]
11 - Positioning structure;
[33]
12 - Side frame;
[34]
121 - End plate;
[35]
122 - Side plate;
[36]
13 - Bottom plate;
[37]
14 - Gap;
[38]
15 - A connecting hole;
[39]
20 - Cell;
[40]
30 - Foaming of the structural adhesive.
[41]
Here in the specification of the Figure are incorporated into and form a part of this specification, are shown in accordance with an embodiment of the application, and together with the description used for explaining the principle of the invention.
[42]
Mode of execution
[43]
Below through specific embodiments are combined with photos to the further detailed description of the application.
[44]
As shown in Figure 1-5, the embodiment provides a battery module, comprises a casing 10, a plurality of battery 20 and foamed structure glue 30, a plurality of battery 20 is fixed to the shell 10 in, the shell 10 is formed within the receiving cavity, a plurality of battery 20 is accommodated in the holding cavity, each cell 20 can be in accordance with the parallel, series or series-parallel manner are arranged on holding cavity; the battery 20 and the shell 10 between the, two adjacent cell 20 are filled with foamed structure between the rubber 30.
[45]
The battery module, in the course of assembling can be directly coated on the surface of the foamed structure glue 30 battery 20 are sequentially mounted to the shell 10 in, then through changing environmental parameters (such as temperature, light and the like) to be foamed and solidified, in the foamed structure adhesive 30 is formed in the hole of the foam, to realize foa…