Battery module structure capable of being simply assembled

Abstract

The utility model discloses a battery module structure capable of being simply assembled, which belongs to the technical field of batteries and comprises two battery cell brackets with opposite mounting directions, the battery cell group is fixed between the two battery cell brackets, and a plurality of battery cells of the battery cell group have the same polarity and are used for storing energy and supplying power; the connecting sheet group is connected to one side of the battery cell group and is used for connecting battery cells in series and in parallel; and the epoxy fiber board with the gum and the protection board are sequentially arranged above the battery cell bracket and are fixed through screws. Positive and negative directions are not needed when the battery cells are assembled, so that the polarity of the battery cells is on the same side, the production process difficulty is reduced, and potential safety hazards such as combustion explosion caused by short circuit due to reverse assembly of the battery cells are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a battery module structure that can be easily assembled. Background Art

[0002] With the development of the new energy industry and the vigorous promotion of clean energy, the transition from fuel vehicles to electric vehicles has become the mainstream development trend today. Due to the diverse chassis structures of automobiles, in order to optimize the spatial layout of the battery pack system, improve the energy density of the entire vehicle and reduce manufacturing costs, various automotive industries have also put forward many requirements for the structural shape development of the modules within the battery pack system.

[0003] However, the existing battery module structure has the following problems:

[0004] 1. The battery cells are connected in series and parallel and need to be installed in strict accordance with the positive and negative polarity directions. If a battery cell is installed in reverse, it may cause combustion, explosion and other safety accidents.

[0005] 2. Since the positive and negative poles of the battery modules are distributed left and right in series and parallel, both sides need to be connected with connecting pieces, which makes the production process cumbersome and complicated;

[0006] 3. There are many connecting pieces and the production cost is high;

[0007] 4. Each connecting piece is large, not compact and expensive;

[0008] 5. The collection points on the protection plate are distributed on the left and right sides, and the layout is complex, which increases the difficulty of design and production. Utility Model Content

[0009] In order to solve the above problems, the present invention adopts the following technical solutions:

[0010] A battery module structure that can be easily assembled includes:

[0011] Two battery cell holders, the two battery cell holders being installed in opposite directions;

[0012] A battery cell group arranged in a matrix, the battery cell group being fixed between two of the battery cell supports, and the multiple battery cells in the battery cell group having the same polarity, for energy storage and power supply;

[0013] A connecting plate group, connected to one side of the battery cell group, for connecting the battery cells in series and parallel;

[0014] The adhesive-backed epoxy fiberboard and the protective plate are sequentially installed on top of the battery holder and fixed by screws.

[0015] Furthermore, the two battery cell brackets are fixed by means of a fixing screw and a fixing nut.

[0016] Furthermore, a plurality of connecting posts are spaced apart above the battery cell support, and a plurality of through holes matching the plurality of connecting posts are provided on the epoxy fiberboard with adhesive backing.

[0017] Furthermore, the connecting plate group includes a connecting plate A, multiple connecting plates B and a connecting plate C arranged in sequence, and the connecting plate A, the connecting plate B and the connecting plate C are all welded on the corresponding battery cell poles for connecting the battery cells in series and parallel. A plurality of protective plate welding points are provided on the side of the protective plate away from the epoxy fiberboard with backing adhesive, and the lead-out parts of the connecting plate B are all welded on the corresponding welding points of the protective plate.

[0018] Furthermore, the positive electrodes of the battery cells in the first column are connected through the connecting piece A, the negative electrodes of the battery cells in the last column are connected through the connecting piece C, and the battery cells in two adjacent columns are connected through the connecting piece B, wherein the first end of the connecting piece B is connected to the negative electrode of the battery cells in the previous column, and the second end is connected to the positive electrode of the battery cells in this column.

[0019] Furthermore, the connecting piece A includes:

[0020] Connecting piece A body;

[0021] A plurality of first protrusions, wherein the plurality of first protrusions are located in parallel on one side of the connecting piece A body;

[0022] a plurality of second protrusions, the plurality of second protrusions being arranged in parallel on a side of the connecting piece A body away from the first protrusion, the plurality of second protrusions being arranged in one-to-one correspondence with the battery cells in the first column, and being respectively connected to the positive electrodes of the battery cells;

[0023] The connecting piece A body, the plurality of first protrusions and the plurality of second protrusions are an integrated structure.

[0024] Furthermore, the connecting piece B includes:

[0025] Connecting piece B body;

[0026] A plurality of first arc-shaped protrusions, the plurality of first arc-shaped protrusions being arranged in parallel on one side of the connecting piece B body, the plurality of first arc-shaped protrusions being arranged in one-to-one correspondence with the plurality of battery cells in the previous row, and being respectively connected to the negative electrodes of the battery cells in the previous row;

[0027] a plurality of third protrusions, the plurality of third protrusions being located in parallel on a side of the connecting piece B body away from the first arc-shaped protrusion, the plurality of third protrusions being arranged in one-to-one correspondence with the battery cells in this column and being respectively connected to the positive electrodes of the battery cells in this column, the lead portions being arranged on the third protrusions on a side close to the protective plate, and the lead portions being respectively welded to corresponding welding points on the protective plate;

[0028] The connecting piece B body, the first arc-shaped protrusions and the third protrusions are an integrated structure.

[0029] Furthermore, the connecting piece C includes:

[0030] Connecting piece C body;

[0031] A plurality of second arc-shaped protrusions, the plurality of second arc-shaped protrusions are arranged in parallel on one side of the connecting piece C body, the plurality of second arc-shaped protrusions are arranged in a one-to-one correspondence with the battery cells in the last column, and are respectively connected to the negative electrodes of the battery cells in the last column;

[0032] a plurality of fourth protrusions, wherein the plurality of fourth protrusions are located in parallel on a side of the connecting piece C body away from the second arc-shaped protrusion;

[0033] The connecting piece C body, the second arc-shaped protrusions and the fourth protrusions are an integrated structure.

[0034] Furthermore, one of the two battery cell brackets is provided with a male buckle, and the other is provided with a matching female buckle.

[0035] Beneficial effects of the utility model:

[0036] The utility model does not need to distinguish between positive and negative directions when assembling the battery cells, so that the polarity of the battery cells is on the same side, which reduces the difficulty of the production process and avoids safety hazards such as short circuit caused by reverse installation of the battery cells, resulting in combustion and explosion.

[0037] The utility model realizes the series-parallel connection of the battery cells on the same side, reduces the number of connecting pieces installed, and reduces production costs;

[0038] The utility model can realize series and parallel connection of battery cells on the connecting pieces of the same area on the original basis, thereby reducing the manufacturing cost of the connecting pieces;

[0039] The utility model can reduce the number of connecting pieces by half, thereby reducing material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is an exploded schematic diagram of the existing structure in the background art;

[0041] Figure 2This is an exploded schematic diagram of a battery module structure that can be easily assembled according to the present invention;

[0042] Figure 3 This is a side view of a battery module structure that can be easily assembled according to the present invention;

[0043] Figure 4 This is a schematic diagram of a connecting piece A of a battery module structure that can be easily assembled according to the present invention;

[0044] Figure 5 This is a schematic diagram of a connecting piece B of a battery module structure that can be easily assembled according to the present invention;

[0045] Figure 6 This is a schematic diagram of a connecting piece C of a battery module structure that can be easily assembled according to the present invention.

[0046] In the figure: 1. Battery cell; 2. Battery cell bracket; 3. Epoxy fiberboard with adhesive backing; 4. Protective plate; 5. Connecting piece A; 6. Connecting piece B; 7. Connecting piece C; 8. Fixing screw; 9. Fixing nut. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] Example 1

[0049] refer to Figures 1 to 6 , a battery module structure that can be easily assembled, comprising:

[0050] Two battery cell holders 2, the two battery cell holders 2 are installed in opposite directions;

[0051] A battery cell group arranged in a matrix, the battery cell group is fixed between two battery cell brackets 2, and the multiple battery cells 1 of the battery cell group have the same polarity and are used for energy storage and power supply;

[0052] A connecting plate group, which is connected to one side of the battery cell group and is used for connecting the battery cells 1 in series and parallel;

[0053] The adhesive-backed epoxy fiberboard 3 and the protective plate 4 are sequentially installed on the top of the battery holder 2 and fixed with screws.

[0054] In this embodiment, adhesive-backed epoxy fiberboard is used for insulation and protection of the protective board;

[0055] In this embodiment, the battery cell holder is used to fix the battery cell;

[0056] In this embodiment, the fixing screw and the fixing nut are used to fix the battery cell bracket;

[0057] In this embodiment, the battery cell is used for energy storage and power supply (power supply);

[0058] In this embodiment, self-tapping screws are used to fix the protection plate;

[0059] In this embodiment, the protection board is used to protect and control the charging and discharging of the battery cell;

[0060] In this embodiment, the connecting piece A, the connecting piece B and the connecting piece C are used for connecting the battery cells in series and in parallel.

[0061] The utility model does not need to distinguish between positive and negative directions during assembly, and the polarity of the battery cells is achieved on the same side, which reduces the difficulty of the production process and avoids safety hazards such as short circuits caused by reverse installation of the battery cells, resulting in combustion and explosion.

[0062] The utility model realizes the series-parallel connection of the battery cells on the same side, reduces the number of connecting pieces installed, and reduces production costs;

[0063] The utility model can realize series and parallel connection of battery cells on the connecting pieces of the same area on the original basis, thereby reducing the manufacturing cost of the connecting pieces;

[0064] The utility model can reduce the number of connecting pieces by half, thereby reducing material costs.

[0065] In this embodiment, the two battery cell supports 2 are fixed by means of a fixing screw 8 and a fixing nut 9 .

[0066] In this embodiment, a plurality of connecting posts are spaced apart above the battery cell support 2 , and a plurality of through holes matching the plurality of connecting posts are provided on the adhesive-backed epoxy fiberboard 3 .

[0067] In this embodiment, the connecting plate group includes a connecting plate A5, multiple connecting plates B6 and a connecting plate C7 arranged in sequence. The connecting plates A5, B6 and C7 are all welded to the corresponding poles of the battery cell 1 for connecting the battery cells 1 in series and parallel. A plurality of welding points of the protective plate 4 are provided on the side of the protective plate 4 away from the epoxy fiberboard 3 with backing adhesive, and the lead-out parts of the connecting plate B6 are all welded to the corresponding welding points of the protective plate 4.

[0068] In this embodiment, the positive electrodes of the first column of battery cells 1 are connected via a connecting piece A5, the negative electrodes of the last column of battery cells 1 are connected via a connecting piece C7, and the two adjacent columns of battery cells 1 are connected via a connecting piece B6, wherein the first end of the connecting piece B6 is connected to the negative electrode of the battery cell 1 in the previous column, and the second end is connected to the positive electrode of the battery cell 1 in the current column.

[0069] The connecting piece A5 realizes the parallel connection of the battery cells 1 in the first column, the connecting piece C7 realizes the parallel connection of the battery cells 1 in the last column, the connecting piece B6 realizes the parallel connection of the battery cells 1 in this column, and the series connection of the battery cells 1 in two adjacent columns.

[0070] In this embodiment, the connecting piece A5 includes:

[0071] Connecting piece A5 body;

[0072] A plurality of first protrusions, the plurality of first protrusions are arranged in parallel on one side of the connecting piece A5 body;

[0073] A plurality of second protrusions are arranged in parallel on a side of the connecting piece A5 body away from the first protrusion. The plurality of second protrusions are arranged in a one-to-one correspondence with the battery cells 1 in the first column and are respectively connected to the positive electrodes of the battery cells 1;

[0074] The connecting piece A5 body, the plurality of first protrusions and the plurality of second protrusions are an integrated structure.

[0075] In this embodiment, the connecting piece B6 includes:

[0076] Connecting piece B6 body;

[0077] A plurality of first arc-shaped protrusions, the plurality of first arc-shaped protrusions are arranged in parallel on one side of the connecting piece B6 body, the plurality of first arc-shaped protrusions are arranged in a one-to-one correspondence with the plurality of battery cells 1 in the previous row, and are respectively connected to the negative electrodes of the battery cells 1 in the previous row;

[0078] Multiple third protrusions are located in parallel on the side of the connecting piece B6 body away from the first arc-shaped protrusion. The multiple third protrusions are arranged in a one-to-one correspondence with the battery cells 1 in this column and are respectively connected to the positive electrodes of the battery cells 1 in this column. The lead portions are arranged on the third protrusions on the side close to the protective plate 4 and are respectively welded to the corresponding welding points on the protective plate 4;

[0079] The connecting piece B6 body, the plurality of first arc-shaped protrusions and the plurality of third protrusions are an integrated structure.

[0080] In this embodiment, the connecting piece C7 includes:

[0081] Connecting piece C7 body;

[0082] Multiple second arc-shaped protrusions are arranged in parallel on one side of the connecting piece C7 body. The multiple second arc-shaped protrusions are arranged in a one-to-one correspondence with the battery cells 1 in the last column and are respectively connected to the negative electrodes of the battery cells 1 in the last column;

[0083] a plurality of fourth protrusions, the plurality of fourth protrusions being located in parallel on a side of the connecting piece C7 body away from the second arc-shaped protrusion;

[0084] The connecting piece C7 body, the plurality of second arc-shaped protrusions and the plurality of fourth protrusions are an integrated structure. In this embodiment, one of the two battery cell holders 2 is provided with a male buckle and the other is provided with a matching female buckle.

[0085] Example 2

[0086] This embodiment is the assembly process in Example 1, and its steps include:

[0087] 1. Install the battery cells with the same polarity into one of the battery holders;

[0088] 2. Install the other battery holder in the opposite direction to ensure that the battery is fixed between the two battery holders and that the male and female buckles of the two battery holders match each other;

[0089] 3. Use fixing screws and fixing nuts to fix the two battery cell brackets together to ensure firmness and strength;

[0090] 4. Connect the positive and negative poles of the battery cell using connectors A, B, and C according to the series and parallel relationship of the battery cell mold, and fix them by welding.

[0091] 5. Use the positioning column on the top of the battery holder to install the epoxy fiberboard with adhesive backing, install the protection plate according to the direction, and fix it to the battery holder with screws;

[0092] 6. Bend the lead parts on the connecting piece 90° and solder them to the pads on the protection board.

[0093] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A battery module structure that can be easily assembled, characterized in that: include: Two battery cell holders, the two battery cell holders being installed in opposite directions; A battery cell group arranged in a matrix, the battery cell group being fixed between two of the battery cell supports, and the multiple battery cells in the battery cell group having the same polarity, for energy storage and power supply; A connecting plate group, connected to one side of the battery cell group, for connecting the battery cells in series and parallel; The adhesive-backed epoxy fiberboard and the protective plate are sequentially installed on top of the battery holder and fixed by screws.

2. A battery module structure that can be easily assembled according to claim 1, characterized in that: The two battery cell supports are fixed by means of a fixing screw and a fixing nut.

3. The battery module structure that can be easily assembled according to claim 2, characterized in that: A plurality of connecting columns are arranged at intervals above the battery support, and a plurality of through holes matching the plurality of connecting columns are arranged on the epoxy fiberboard with adhesive backing.

4. The battery module structure that can be easily assembled according to claim 1, characterized in that: The connecting plate group includes a connecting plate A, multiple connecting plates B and a connecting plate C arranged in sequence. The connecting plate A, the connecting plate B and the connecting plate C are all welded on the corresponding battery cell poles for connecting the battery cells in series and parallel. A plurality of protective plate welding points are provided on the side of the protective plate away from the epoxy fiberboard with backing adhesive, and the lead-out parts of the connecting plate B are all welded on the corresponding welding points of the protective plate.

5. The battery module structure that can be easily assembled according to claim 4, characterized in that: The positive electrodes of the battery cells in the first column are connected through the connecting piece A, the negative electrodes of the battery cells in the last column are connected through the connecting piece C, and the battery cells in two adjacent columns are connected through the connecting piece B, wherein the first end of the connecting piece B is connected to the negative electrode of the battery cells in the previous column, and the second end is connected to the positive electrode of the battery cells in this column.

6. The battery module structure that can be easily assembled according to claim 5, characterized in that: The connecting piece A comprises: Connecting piece A body; A plurality of first protrusions, wherein the plurality of first protrusions are located in parallel on one side of the connecting piece A body; a plurality of second protrusions, the plurality of second protrusions being arranged in parallel on a side of the connecting piece A body away from the first protrusion, the plurality of second protrusions being arranged in one-to-one correspondence with the battery cells in the first column, and being respectively connected to the positive electrodes of the battery cells; The connecting piece A body, the plurality of first protrusions and the plurality of second protrusions are an integrated structure.

7. The battery module structure that can be easily assembled according to claim 5, characterized in that: The connecting piece B includes: Connecting piece B body; A plurality of first arc-shaped protrusions, the plurality of first arc-shaped protrusions being arranged in parallel on one side of the connecting piece B body, the plurality of first arc-shaped protrusions being arranged in one-to-one correspondence with the plurality of battery cells in the previous row, and being respectively connected to the negative electrodes of the battery cells in the previous row; a plurality of third protrusions, the plurality of third protrusions being located in parallel on a side of the connecting piece B body away from the first arc-shaped protrusion, the plurality of third protrusions being arranged in one-to-one correspondence with the battery cells in this column and being respectively connected to the positive electrodes of the battery cells in this column, the lead portions being arranged on the third protrusions on a side close to the protective plate, and the lead portions being respectively welded to corresponding welding points on the protective plate; The connecting piece B body, the first arc-shaped protrusions and the third protrusions are an integrated structure.

8. The battery module structure that can be easily assembled according to claim 5, characterized in that: The connecting piece C includes: Connecting piece C body; A plurality of second arc-shaped protrusions, the plurality of second arc-shaped protrusions are arranged in parallel on one side of the connecting piece C body, the plurality of second arc-shaped protrusions are arranged in a one-to-one correspondence with the battery cells in the last column, and are respectively connected to the negative electrodes of the battery cells in the last column; a plurality of fourth protrusions, wherein the plurality of fourth protrusions are located in parallel on a side of the connecting piece C body away from the second arc-shaped protrusion; The connecting piece C body, the second arc-shaped protrusions and the fourth protrusions are an integrated structure.

9. The battery module structure that can be easily assembled according to claim 1, characterized in that: One of the two battery cell supports is provided with a male buckle, and the other is provided with a matching female buckle.

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