Battery grouping structure

Abstract

The embodiment of the utility model provides a battery grouping structure, which comprises a bottom plate, a battery pack and a battery pack, the bottom plate comprises a supporting plate and a baffle plate, and the supporting plate and the baffle plate are perpendicular to each other and are fixedly connected; the side plate assembly is arranged around the plurality of groups of battery cells; the cover plate is parallel to the supporting plate; wherein the bottom plate, the side plate assembly and the cover plate are detachably connected and define a mounting cavity for mounting a plurality of groups of battery cells, and the side walls of the bottom plate, the side plate assembly and the cover plate are all attached to the side walls of the battery cells. According to the utility model, the problem of waste of the internal space of the housing in the prior art is solved, and the effect of effectively utilizing the internal space of the housing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery packs, and in particular to a battery grouping structure. Background Art

[0002] On the one hand, as the ICT market replaces lead with lithium, lithium batteries have been increasingly accepted by operators in various countries since 2015, and the demand has been growing on a large scale. Among them, plug-in lithium batteries are very popular in the market due to their high energy density and long life. On the other hand, with the rapid development of 5G communication technology, site capacity has increased. Without increasing site space, communication backup power needs to achieve increased capacity without increasing space. How to improve the energy density of communication backup power products is the focus of lithium battery product development.

[0003] In the related art, the battery module uses a steel belt and an end plate to pack multiple cells together. After the cells are packed as a whole, they are fixed to the casing with screws.

[0004] Therefore, since the steel strip occupies a certain space inside the shell, the capacity of the battery cell in the shell is limited, which easily causes waste of the space inside the shell. Utility Model Content

[0005] The embodiment of the utility model provides a battery grouping structure, which at least solves the problem of waste of the internal space of the shell in the related art.

[0006] According to one embodiment of the utility model, a battery group structure is provided, comprising:

[0007] The bottom plate comprises a supporting plate and a baffle, wherein the supporting plate and the baffle are perpendicular to each other and fixedly connected;

[0008] A side panel assembly is arranged around the plurality of battery cells;

[0009] A cover plate, arranged parallel to the support plate;

[0010] The bottom plate, the side plate assembly and the cover plate are detachably connected to form an installation chamber for installing multiple groups of battery cells, and the side walls of the bottom plate, the side plate assembly and the cover plate are all in contact with the side walls of the battery cells.

[0011] Through an embodiment of the utility model, due to the introduction of the battery group structure, the internal space of the shell is fully utilized, the assembly density is improved, the gap is reduced, and a convenient maintenance and expansion path is provided. Therefore, the problem of waste of the internal space of the shell existing in the related art is effectively solved, thereby achieving the effect of improving the effective utilization of the internal space of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1The structure of the battery group structure according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2 The structure of the battery group structure according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0014] Figure 3 It is a schematic structural diagram of the energy absorption space according to an embodiment of the utility model.

[0015] Explanation of the accompanying drawings: 1. Base plate; 11. Support plate; 12. Baffle; 2. Side panel assembly; 21. Front side panel; 22. Left side panel; 23. Right side panel; 3. Cover plate; 4. Elastic plate; 5. Elastic element; 6. First connecting part; 7. Second connecting part; 8. Installation chamber; 9. Energy absorption space. DETAILED DESCRIPTION

[0016] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0017] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0018] The utility model discloses a battery group structure. Figure 1 The structure of the battery group structure according to the embodiment of the utility model is shown in FIG. Figure 1 ,like Figure 1 As shown, the battery group structure includes a bottom plate 1, a side plate assembly 2, and a cover plate 3.

[0019] The bottom plate 1 comprises a supporting plate 11 and a baffle 12, wherein the supporting plate 11 and the baffle 12 are perpendicular to each other and fixedly connected;

[0020] Figure 2 The structure of the battery group structure according to the embodiment of the utility model is shown in FIG. Figure 2 In an exemplary embodiment, Figure 2 As shown, the support plate 11 and the baffle plate 12 are integrally formed structures, and the shape can be "L". Alternatively, the support plate 11 and the baffle plate 12 can be different parts, which are fixed together by welding or bolting, and after being fixed, the support plate 11 and the baffle plate 12 are perpendicular to each other.

[0021] A side panel assembly 2 is arranged around the multiple groups of battery cells;

[0022] The cover plate 3 is arranged parallel to the support plate 11;

[0023] Among them, the bottom plate 1, the side plate assembly 2, and the cover plate 3 are detachably connected to enclose an installation chamber 8 for installing multiple groups of battery cells, and the side walls of the bottom plate 1, the side plate assembly 2, and the cover plate 3 are all in contact with the side walls of the battery cells.

[0024] In an exemplary embodiment, the detachable connection method can be bonding, screw connection, mortise and tenon structure connection, snap connection, etc.

[0025] In one embodiment, the side panel assembly 2 includes:

[0026] A front side plate 21, located at the front side of the battery cell;

[0027] A left side plate 22, located on the left side of the battery cell;

[0028] The right side plate 23 is located on the right side of the battery cell;

[0029] The front side plate 21, the left side plate 22 and the right side plate 23 are detachably connected to each other.

[0030] In one embodiment, the front side plate 21 , the left side plate 22 , and the right side plate 23 are all detachably connected to the bottom plate 1 and the cover plate 3 .

[0031] In one embodiment, the front side plate 21, the left side plate 22, and the right side plate 23 are arranged parallel to each other.

[0032] In an exemplary embodiment, the mutually parallel front side plate 21, left side plate 22, and right side plate 23 can make the outer shape of the battery group structure a regular polygonal prism, effectively saving space. For example, it is convenient to place multiple battery group structures side by side so that the outer side wall of the front side plate 21, left side plate 22, and right side plate 23 of one battery group structure fits with the outer side wall of the front side plate 21, left side plate 22, and right side plate 23 of another battery group structure, which not only saves space, but also facilitates the use of the abutment force between two adjacent battery group structures to keep the battery cell group structure stable.

[0033] In one embodiment, the front side plate 21 , the left side plate 22 , and the right side plate 23 are all arranged perpendicularly to the support plate 11 and the cover plate 3 .

[0034] In an exemplary embodiment, since the front side plate 21, the left side plate 22, and the right side plate 23 are all perpendicular to the support plate 11 and the cover plate 3, and the side walls of the battery cells are mostly planar structures, it is convenient to fit the front side plate 21, the left side plate 22, and the right side plate 23 with the side walls of the battery cells, thereby fully utilizing and saving the space of the installation chamber 8. Moreover, since the front side plate 21, the left side plate 22, and the right side plate 23 can fit with the side walls of the battery cells, it is convenient to utilize the abutment force between the front side plate 21, the left side plate 22, and the right side plate 23 and the side walls of the battery cells, so that the multiple battery cells are kept in a state of being pressed against each other.

[0035] In one embodiment, the side plate assembly 2 includes an elastic plate 4 for buffering the expansion force of the battery cell.

[0036] In an exemplary embodiment, the elastic plate 4 is disposed between the left side plate 22, the right side plate 23 and the battery cell. After the battery cell is placed in the installation chamber 8, the front side plate 21, the left side plate 22, and the right side plate 23 are fixed to the bottom plate 1. When the battery cell expands, the elastic deformation capacity of the elastic plate 4 can buffer the expansion force of the battery cell, thereby reducing the expansion force on the left side plate 22 and the right side plate 23, reducing the probability of deformation of the left side plate 22 and the right side plate 23, and also reducing the expansion force at the connection between the left side plate 22 and the right side plate 23, reducing the probability of separation of the left side plate 22 and the right side plate 23.

[0037] In one embodiment, the elastic plate 4 is made of metal.

[0038] In an exemplary embodiment, the battery cell is prone to heat generation during operation. Since the metal parts have strong thermal conductivity, the heat generated by the battery cell during operation can be promptly transferred to the left plate 22 and the right plate 23, and then transferred to the outside of the battery cell grouping structure, thereby improving the heat dissipation efficiency of the battery cell.

[0039] In one embodiment, an elastic element 5 is disposed on the elastic plate 4 near the side wall of the battery cell, and the side wall of the elastic element 5 is in contact with the battery cell.

[0040] In an exemplary embodiment, the elastic element 5 can be foam, silicone, rubber, spring, etc. By utilizing the elastic deformation ability of the elastic element 5, the expansion force of the battery cell is further buffered, so as to facilitate the protection of the left plate 22 and the right plate 23. Secondly, since the elastic element 5 is arranged between the elastic plate 4 and the battery cell, when the elastic element 5 is a flexible material such as foam, silicone, rubber, etc., it not only buffers the expansion force of the battery cell, but also reduces the probability of rigid contact between the battery cell and the elastic plate 4, so as to facilitate the protection of the elastic plate 4 and the battery cell.

[0041] Figure 3 is a schematic diagram of the structure of the energy absorption space according to an embodiment of the utility model. In one implementation, as Figure 3 As shown, the sides of the left side plate 22 and the right side plate 23 are both provided with a first connecting portion 6;

[0042] A second connecting portion 7 is provided on the side of the elastic plate 4;

[0043] The first connection portion 6 and the second connection portion 7 are detachably connected, and the left side plate 22 , the right side plate 23 and the elastic plate 4 enclose an energy absorbing space 9 .

[0044] In an exemplary embodiment, the first connection part 6 and the second connection part 7 can both be "L"-shaped wing plates, wherein one end of the first connection part 6 is detachably connected to the side of the left plate 22 or the right plate 23, one end of the second connection part 7 is detachably connected to the side of the elastic plate 4, and the other end of the first connection part 6 is detachably connected to the other end of the second connection part 7. The detachable connection method can be bonding, screw connection, mortise and tenon structure connection, snap connection, etc.

[0045] By providing the first connection part 6 and the second connection part 7, and the first connection part 6 and the second connection part 7 are detachably connected. When the left side plate 22 and the right side plate 23 are damaged, the first connection part 6 and the second connection part 7 can be disassembled, so as to facilitate the replacement of the left side plate 22 and the right side plate 23. Secondly, the first connection part 6 and the second connection part 7 are connected, occupying a certain space, so that the left side plate 22 and the elastic plate 4 are enclosed to form an energy absorption space 9, and the right side plate 23 and the elastic plate 4 are enclosed to form an energy absorption space 9. In addition, by providing the energy absorption space 9, it is convenient to offset the irreversible expansion force generated by the battery cell during use through the energy absorption space 9.

[0046] In one embodiment, an elastic member is disposed in the energy absorbing space 9 .

[0047] In an exemplary embodiment, the elastic member may be a spring, thermally conductive rubber, silicone, etc. For example, when the elastic member is a spring, one end of the spring is abutted against the side wall of the left plate 22 or the right plate 23 close to the battery core, and the other end of the spring is abutted against the elastic plate 4. When the elastic member is thermally conductive rubber, silicone, etc., the thermally conductive rubber, silicone, etc. may be filled into the energy absorption space 9 between the left plate 22 or the right plate 23 and the elastic plate 4.

[0048] On the premise that the elastic plate 4 has elasticity, within the elastic deformation range, the provision of the elastic member is beneficial to assisting the elastic plate 4 in restoring its shape, so as to achieve the effect of recycling the elastic plate 4 .

[0049] The implementation principle of the present utility model embodiment is as follows:

[0050] In the process of assembling the battery cells, first stack multiple battery cells on the support plate 11, and abut the side walls of the multiple battery cells against the baffle 12 to align the rear sides of the multiple battery cells. Then install the left side plate 22 and the right side plate 23 in sequence, so that the left side plate 22 and the right side plate 23 apply pressure to the battery cells, so that the rear side, left side, and right side of the multiple battery cells are pressed tightly, so that the multiple battery cells are squeezed into groups. Then install the front baffle 12 so that the front sides of the multiple battery cells are pressed tightly, and then weld the bus bars of the multiple battery cells. Finally, install the cover plate 3 to complete the packaging of the multiple battery cells. Of course, the above installation process is only an exemplary implementation, and the installation order of the battery grouping structure can be selected according to actual conditions, and the embodiments of the utility model are not exhaustive.

[0051] When the battery cell expands, the side wall of the battery cell squeezes the elastic element 5, the elastic element 5 squeezes the elastic plate 4, and the elastic plate 4 squeezes the elastic member. The elastic member can buffer the pressure, thereby reducing the stress on the left plate 22 and the right plate 23, and further reducing the probability of deformation of the left plate 22 and the right plate 23. Moreover, after the battery cell is replaced, the expansion force of the battery cell disappears, and the elastic member, the elastic plate 4, and the elastic element 5 have the ability to recover elastic deformation. Under the action of their respective elastic recovery forces, they squeeze adjacent components to restore their shapes, and in a coordinated manner help the elastic member, the elastic plate 4, and the elastic element 5 to restore their original state.

[0052] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery group structure, characterized in that: include: The bottom plate comprises a supporting plate and a baffle, wherein the supporting plate and the baffle are perpendicular to each other and fixedly connected; A side panel assembly is arranged around the plurality of battery cells; A cover plate, arranged parallel to the support plate; The bottom plate, the side plate assembly and the cover plate are detachably connected to form an installation chamber for installing multiple groups of battery cells, and the side walls of the bottom plate, the side plate assembly and the cover plate are all in contact with the side walls of the battery cells.

2. The structure according to claim 1, characterized in that: The side plate assembly includes an elastic plate for buffering the expansion force of the battery cell.

3. The structure according to claim 2, characterized in that: The elastic plate is provided with an elastic element near the side wall of the battery core, and the side wall of the elastic element is in contact with the battery core.

4. The structure according to claim 2, characterized in that: The side panel assembly further comprises: Front side panel, located on the front side of the battery cell; The left side panel is located on the left side of the battery cell; The right side panel is located on the right side of the battery cell; Wherein, the front side panel, the left side panel and the right side panel are detachably connected to each other.

5. The structure according to claim 4, characterized in that: The front side plate, the left side plate and the right side plate are all detachably connected to the bottom plate and the cover plate.

6. The structure according to claim 4, characterized in that The front side plate, the left side plate and the right side plate are arranged parallel to each other.

7. The structure according to claim 4, characterized in that: The front side plate, the left side plate and the right side plate are all arranged perpendicularly to the supporting plate and the cover plate.

8. The structure according to claim 4, characterized in that The sides of the left side plate and the right side plate are both provided with a first connecting portion; A second connecting portion is provided on the side of the elastic plate; The first connection part and the second connection part are detachably connected, and the left side plate, the right side plate and the elastic plate are enclosed to form an energy absorbing space.

9. The structure according to claim 2, characterized in that: The elastic plate is made of metal.

10. The structure according to claim 8, characterized in that An elastic member is arranged in the energy absorbing space.

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