A side-pressing type battery pack structure

Abstract

The utility model provides a kind of side pressing type battery package structure, belong to new energy battery field.The structure includes bottom plate, first side plate and two second side plates, first side plate and second side plate vertically set on bottom plate, two second side plates are arranged in parallel interval, first side plate is arranged at one end of second side plate, side pressing plate is arranged at the other end of second side plate, battery module includes multiple transverse stacked arrangement's electric core, battery module is arranged in the region formed by first side plate and two second side plates, and one end of side pressing plate and battery module abuts.The side pressing type battery package structure provided by the utility model embodiment can solve the problem of low assembly efficiency in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of new energy batteries, and in particular to a side-pressed battery pack structure. Background Technology

[0002] With the rapid development of new energy batteries, research on the methods of installing battery cells in battery packs is also increasing. In order to improve the space utilization of battery cells inside the battery pack, the CTP (Cell to Pack) structure is usually adopted, which means that the battery cells are directly installed inside the battery pack box.

[0003] In existing technologies, the method of installing battery cells in a battery pack usually involves stacking individual battery cells using external tooling, and then using transfer tooling to clamp the stacked assembly and transport it to the power battery box. During the cell stacking process, glue is needed to fix the cells, which is inconvenient for repair and recycling. The transfer process is cumbersome, inefficient, and also poses certain safety risks.

[0004] In existing battery pack structures, the cells are stacked together using external tooling before being moved into the battery housing as a whole, resulting in low assembly efficiency. Utility Model Content

[0005] This utility model provides a side-compression battery pack structure, which can solve the problem of low assembly efficiency in the prior art. The technical solution is as follows:

[0006] A side-clamped battery pack structure includes: a housing, a side pressure plate, and a battery module.

[0007] The housing includes a bottom plate, a first side plate, and two second side plates. The first side plate and the second side plates are vertically arranged on the bottom plate, and the two second side plates are arranged in parallel and spaced apart. The first side plate is located at one end of the second side plate, and the side pressure plate is located at the other end of the second side plate. The battery module includes a plurality of horizontally stacked battery cells. The battery module is located in the area formed by the first side plate and the two second side plates, and the side pressure plate abuts against one end of the battery module.

[0008] Optionally, the side pressure plate is provided with a first elastic pressure plate and a first elastic element on the side near the battery module. The side pressure plate and the first elastic pressure plate are arranged at intervals. The first elastic pressure plate abuts against one end of the battery module, and the first elastic element is disposed between the side pressure plate and the first elastic pressure plate.

[0009] Optionally, the first elastic element is a spring.

[0010] Optionally, the housing is provided with partitions arranged parallel to and spaced apart from the first side panel, the partitions and the first side panel forming an electrical compartment, and the partitions abutting against the other end of the battery module.

[0011] Optionally, the separator is provided with a second elastic pressure plate and a second elastic member on the side near the battery module. The separator and the second elastic pressure plate are arranged at intervals. The second elastic pressure plate abuts against the other end of the battery module, and the second elastic member is disposed between the separator and the second elastic pressure plate.

[0012] Optionally, the side pressure plate is detachably connected to the housing.

[0013] Optionally, the side plate is provided with a first threaded hole, and the side of the second side plate is provided with a second threaded hole that matches the first threaded hole.

[0014] Optionally, a pressure strip is provided on the top of the battery module, and the pressure strip abuts against the top of the battery module.

[0015] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:

[0016] This utility model provides a side-pressing battery pack structure. During battery module installation, each cell is horizontally pushed into the housing through the opening formed by the first and second side plates, thus horizontally stacking to form a battery module. A side pressure plate then laterally presses the battery module, filling the gaps between the cells and securing them. The side pressure plate is then fixed to the side of the second side plate, creating an upward-opening structure. Finally, the housing cover is placed on top, forming a sealed battery pack structure. By dividing the traditional battery housing into a first side plate, a second side plate, and a side pressure plate, cells can be installed into the battery housing from the side, eliminating the need for external stacking and transport fixtures, simplifying the battery pack assembly process, and effectively solving the problem of low assembly efficiency in existing technologies. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model;

[0019] Figure 2This is a schematic diagram of the box structure provided in an embodiment of the present utility model.

[0020] In the diagram: 101-Electrical compartment; 1-Box body; 11-Bottom plate; 12-First side plate; 13-Second side plate; 2-Side pressure plate; 3-Battery module; 31-Battery cell; 41-First elastic pressure plate; 42-First elastic element; 5-Separator; 61-Second elastic pressure plate; 62-Second elastic element; 71-First threaded hole; 72-Second threaded hole; 8-Pressure strip. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the box structure provided in an embodiment of this utility model. Figures 1 to 2 The side-pressed battery pack structure shown includes: a housing 1, a side pressure plate 2, and a battery module 3. The housing 1 includes a bottom plate 11, a first side plate 12, and two second side plates 13. The first side plate 12 and the second side plate 13 are vertically arranged on the bottom plate 11, and the two second side plates 13 are arranged in parallel and spaced apart. The first side plate 12 is located at one end of the second side plate 13, and the side pressure plate 2 is located at the other end of the second side plate 13. The battery module 3 includes a plurality of horizontally stacked battery cells 31. The battery module 31 is located in the area formed by the first side plate 12 and the two second side plates 13. The side pressure plate 2 abuts against one end of the battery module 3.

[0023] For example, in this embodiment of the present invention, the housing 1 has an opening at the top and an opening on one side. When the battery cell 31 is installed in the housing 1, it can be pushed horizontally into the housing from the side opening, so that the battery cell 31 abuts against the first side plate 12. Multiple battery cells 31 can be stacked in rows, and multiple rows of battery cells 31 can be stacked. Multiple battery cells 31 can be connected in series or in parallel to form a battery module 3. At this time, one end of the battery module 3 abuts against the first side plate 12. After all the battery cells 31 are stacked, the side pressure plate 2 is pushed horizontally from the side opening so that the side pressure plate 2 abuts against and fixes the other end of the battery module 3. At this time, the battery module 3 is fixed in the housing 1 in the horizontal direction. Then, by covering the top of the housing 1 with a cover that cooperates with the housing 1, the battery module 3 is completely fixed, thereby completing the installation of the battery pack.

[0024] This utility model provides a side-pressing battery pack structure. When installing the battery module 3, each cell 31 is horizontally pushed into the housing 1 through the opening formed by the first side plate 12 and the second side plate 13, thus horizontally stacking to form the battery module 3. Then, the side pressure plate 2 is used to laterally press the battery module 3, filling the gaps between the multiple cells 31 and fixing them in place. Next, the side pressure plate 2 is fixed to the side of the second side plate 13, creating an upward-opening structure. Finally, the housing cover is placed on the housing 1, forming a sealed battery pack structure. By dividing the traditional battery housing into the first side plate 12, the second side plate 13, and the side pressure plate 2, the cells 31 can be installed into the battery housing from the side, eliminating the need for external stacking and transport fixtures, simplifying the battery pack assembly process, and effectively solving the problem of low assembly efficiency in the prior art.

[0025] Optionally, a first elastic pressure plate 41 and a first elastic element 42 are provided on the side of the side pressure plate 2 near the battery module 3. The side pressure plate 2 and the first elastic pressure plate 41 are arranged at intervals. The first elastic pressure plate 41 abuts against one end of the battery module 3, and the first elastic element 42 is disposed between the side pressure plate 2 and the first elastic pressure plate 41.

[0026] For example, in this embodiment of the present invention, after the side pressure plate 2 is installed in conjunction with the lateral opening of the housing 1, gaps may exist between the multiple battery cells 31. By setting the first elastic pressure plate 41 and the first elastic element 42, the side pressure plate 2 can provide support force, and the first elastic element 42 can provide elastic force, pushing the first elastic pressure plate 41 to abut against the end of the battery module 3. This allows the gaps between the multiple battery cells 31 to be filled under the action of elastic force, thereby enabling the battery cells 31 to be more stably fixed in the housing 1, thus improving the stability of the structure. Furthermore, during the charge and discharge cycle of the battery cells 31, they may expand. By setting the first elastic pressure plate 41 and the first elastic element 42, the expansion force of the battery cells 31 can be absorbed, preventing the housing 1 from deforming due to the expansion of the battery cells 31, thereby further improving the stability of the structure.

[0027] Optionally, the first elastic element 42 is a spring.

[0028] For example, in this embodiment of the present invention, the first elastic element 42 is set in the form of a spring, which has a simple structure and can accumulate or release elastic potential energy to push the first elastic pressure plate 41 to press the end of the battery module. It is convenient to operate, simple to maintain, and has a low manufacturing cost.

[0029] Optionally, the housing 1 is provided with a partition 5 arranged parallel to and spaced apart from the first side plate 12. The partition 5 and the first side plate 12 form an electrical compartment 101. The partition 5 abuts against the other end of the battery module 3.

[0030] For example, in this embodiment of the present invention, the partition 5 is fixed inside the housing 1, so that the first side plate 12 and the partition 5 form a separate electrical compartment 101, which can centrally install the electrical equipment in the battery pack in the electrical compartment 101 and separate it from the battery cell 31, facilitating subsequent maintenance or replacement. By setting the partition 5, the operability of this structure is further improved.

[0031] Optionally, a second elastic pressure plate 61 and a second elastic element 62 are provided on the side of the separator 5 near the battery module 3. The separator 5 and the second elastic pressure plate 61 are arranged at intervals. The second elastic pressure plate 61 abuts against the other end of the battery module 3, and the second elastic element 62 is disposed between the separator 5 and the second elastic pressure plate 61.

[0032] For example, in this embodiment of the present invention, the partition 5 provides support for the second elastic pressure plate 61. The second elastic pressure plate 61 is slidably disposed in the housing 1. By setting the second elastic pressure plate 61 and the second elastic member 62, the battery module 3 can be squeezed from the other end, thereby pushing multiple battery cells 31 closer together from both sides of the battery module 3, filling the gaps between the battery cells 31, and improving the space utilization rate inside the housing 1.

[0033] Optionally, the side pressure plate 2 is detachably connected to the housing 1.

[0034] For example, in this embodiment of the present invention, after all the battery cells 31 are installed into the housing 1, the side pressure plate 2 needs to be pushed in laterally to fix the battery cells 31. At this time, the side pressure plate 2 needs to be fixed to the housing. By setting the side pressure plate 2 to be detachably connected to the housing 1, it is convenient to maintain or replace the battery cells 31, thereby further improving the operational convenience of this structure.

[0035] Optionally, the side pressure plate 2 is provided with a first threaded hole 71, and the side of the second side plate 13 is provided with a second threaded hole 72 that matches the first threaded hole 71.

[0036] For example, in this embodiment of the present invention, by opening a first threaded hole 71 and a second threaded hole 72, and then fixing it by inserting screws through the first threaded hole 71 and the second threaded hole 72, the side pressure plate 2 is fixed on the side opening of the housing 1. When it is necessary to remove the side pressure plate 2, it is only necessary to remove the screws to remove the side pressure plate 2. This structure is relatively simple and easy to operate, which further improves the ease of operation of this structure.

[0037] Optionally, a pressure strip 8 is provided on the top of the battery module 3, and the pressure strip 8 abuts against the top of the battery module 3.

[0038] For example, in this embodiment of the present invention, the pressure strip 8 is arranged along the length of the battery module 3, and multiple parallel and spaced pressure strips 8 can be provided to more securely fix the battery module. After the battery cells 31 are horizontally stacked in the housing 1, the side pressure plate 2 is installed laterally. At this time, the battery cells 31 are fixed in the horizontal plane. One end of the pressure strip 8 is fixed to the partition plate 5, and the other end is fixed to the side pressure plate 2. By setting the pressure strip 8 at the top, the battery cells 31 can be fixed from the top, so that the battery cells 31 are completely fixed in the housing 1, thereby further improving the stability of the structure.

Claims

1. A side-pressed battery pack structure, characterized in that, include: Box body (1), side pressure plate (2) and battery module (3). The housing (1) includes a bottom plate (11), a first side plate (12) and two second side plates (13). The first side plate (12) and the second side plate (13) are vertically arranged on the bottom plate (11). The two second side plates (13) are arranged in parallel and spaced apart. The first side plate (12) is located at one end of the second side plate (13). The side pressure plate (2) is located at the other end of the second side plate (13). The battery module (3) includes a plurality of horizontally stacked cells (31). The battery module (31) is located in the area formed by the first side plate (12) and the two second side plates (13). The side pressure plate (2) abuts against one end of the battery module (3).

2. The side-pressed battery pack structure according to claim 1, characterized in that, The side pressure plate (2) is provided with a first elastic pressure plate (41) and a first elastic element (42) on the side near the battery module (3). The side pressure plate (2) and the first elastic pressure plate (41) are arranged at intervals. The first elastic pressure plate (41) abuts against one end of the battery module (3). The first elastic element (42) is disposed between the side pressure plate (2) and the first elastic pressure plate (41).

3. The side-pressed battery pack structure according to claim 2, characterized in that, The first elastic element (42) is a spring.

4. The side-pressed battery pack structure according to claim 1, characterized in that, The housing (1) is provided with a partition (5) arranged parallel to and spaced apart from the first side plate (12). The partition (5) and the first side plate (12) form an electrical compartment (101). The partition (5) abuts against the other end of the battery module (3).

5. The side-clamping battery pack structure according to claim 4, characterized in that, The partition (5) is provided with a second elastic pressure plate (61) and a second elastic element (62) on the side near the battery module (3). The partition (5) and the second elastic pressure plate (61) are arranged at intervals. The second elastic pressure plate (61) abuts against the other end of the battery module (3). The second elastic element (62) is disposed between the partition (5) and the second elastic pressure plate (61).

6. The side-clamping battery pack structure according to claim 1, characterized in that, The side pressure plate (2) is detachably connected to the box body (1).

7. A side-clamping battery pack structure according to claim 6, characterized in that, The side pressure plate (2) is provided with a first threaded hole (71), and the side of the second side plate (13) is provided with a second threaded hole (72) that matches the first threaded hole (71).

8. The side-clamping battery pack structure according to claim 1, characterized in that, The top of the battery module (3) is provided with a pressure strip (8), which abuts against the top of the battery module (3).

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