Energy storage battery module

Abstract

The embodiment of the utility model provides an energy storage battery module, and relates to the technical field of batteries. The energy storage battery module comprises a shell, a limiting plate body and a plurality of battery cells, the bottom of the shell is provided with an exhaust space, the shell is provided with a first vent hole, the limiting plate body is arranged in the shell, the limiting plate body is provided with a plurality of limiting grooves, each limiting groove is provided with a second vent hole, the second vent holes, the first vent hole and the exhaust space are communicated in sequence, and the battery cells are arranged in the exhaust space. The plurality of battery cells and the plurality of limiting grooves are in one-to-one correspondence, the end part of each battery cell is arranged in each limiting groove, under the condition that the battery cells are out of control, out-of-control products can be subjected to pressure relief through the second air holes and the first air holes in sequence through the exhaust space, the battery cells can be limited by the limiting grooves, and under the condition that the structural strength is ensured, the battery cells can be prevented from being damaged. The whole energy storage battery module is simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to an energy storage battery module. Background Art

[0002] A battery is a device that can convert chemical energy into electrical energy, and has positive and negative electrodes. Using batteries as an energy source can obtain stable voltage and stable current, can provide stable power supply for a long time, is not affected by external climate and temperature, and has stable and reliable performance. Among them, energy storage battery modules are an important energy storage component.

[0003] In the prior art, the energy storage battery module has a complex structure in consideration of the bottom exhaust function, and the battery cells are mainly fixed by plastic parts and sheet metal parts, or by plastic parts, straps and adhesives. There are many fixing parts and the cost is high. Utility Model Content

[0004] The utility model provides an energy storage battery module, which has a simple overall structure and low cost while ensuring structural strength.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] The utility model provides an energy storage battery module, comprising:

[0007] A shell, wherein an exhaust space is provided at the bottom of the shell, and the shell is provided with a first air vent;

[0008] A limiting plate body, wherein the limiting plate body is disposed in the shell, the limiting plate body is provided with a plurality of limiting grooves, each of the limiting grooves is provided with a second air hole, and the second air hole, the first air hole and the exhaust space are sequentially connected; and

[0009] A plurality of battery cells are provided, wherein the plurality of battery cells correspond to the plurality of limiting grooves one by one, and an end of each battery cell is arranged in each limiting groove.

[0010] In an optional embodiment, the limiting plate is bonded to the shell.

[0011] In an optional embodiment, the energy storage battery module further includes an insulating plate, which is simultaneously disposed at ends of the plurality of battery cells, and the insulating plate and the limiting plate are spaced apart.

[0012] In an optional embodiment, each of the battery cells is bonded in the limiting groove.

[0013] In an optional embodiment, the energy storage battery module further includes a cooling plate, and the cooling plate is simultaneously attached to the outer walls of the plurality of battery cells.

[0014] In an optional implementation, the cooling plate is made of metal material.

[0015] In an optional embodiment, the cooling plate and the battery core are connected via a thermally conductive structural adhesive.

[0016] In an optional embodiment, the energy storage battery module further includes a cell signal acquisition component, and the cell signal acquisition component is connected to a plurality of the cells simultaneously.

[0017] In an optional embodiment, the battery cell signal acquisition component is a wiring harness acquisition structure or an FPC acquisition structure.

[0018] In an optional embodiment, the limiting plate body is made of plastic through a vacuum forming process.

[0019] The beneficial effects of the energy storage battery module of the embodiment of the utility model include, for example:

[0020] The utility model provides an energy storage battery module, which comprises a shell, a limiting plate body and a plurality of battery cells. An exhaust space is provided at the bottom of the shell, and the shell is provided with a first vent hole. The limiting plate body is arranged in the shell, and the limiting plate body is provided with a plurality of limiting grooves. Each limiting groove is provided with a second vent hole. The second vent hole, the first vent hole and the exhaust space are connected in sequence. The plurality of battery cells correspond to the plurality of limiting grooves one by one. The end of each battery cell is arranged in each limiting groove. When the battery cell is out of control, the exhaust space can release pressure through the second vent hole and the first vent hole in sequence for the out-of-control products. The limiting groove can limit the battery cell, and the battery cell can be fixed by the limiting plate body. There are few fixing parts. While ensuring the structural strength, the structure of the overall energy storage battery module is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of an energy storage battery module provided in an embodiment of the present utility model;

[0023] Figure 2 An exploded view of an energy storage battery module provided in an embodiment of the present utility model;

[0024] Figure 3It is a cross-sectional view of the energy storage battery module provided in an embodiment of the present utility model.

[0025] Icon: 100-shell; 101-exhaust space; 102-first air vent; 200-limiting plate; 201-limiting groove; 2011-second air vent; 300-battery cell; 400-insulating plate; 500-cooling plate; 510-snake-shaped cooling flat tube; 520-first inlet and outlet liquid pipe; 530-second inlet and outlet liquid pipe; 600-battery cell signal acquisition component. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0030] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0031] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0032] A battery is a cup, tank or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy. It has a positive electrode and a negative electrode. The performance parameters of a battery mainly include electromotive force, capacity, specific energy and resistance.

[0033] As mentioned in the background technology, a battery is a device that can convert chemical energy into electrical energy, and has a positive and negative electrode. Using a battery as an energy source can obtain a stable voltage and a stable current, can provide stable power for a long time, is not affected by the external climate and temperature, and has stable and reliable performance. Among them, the energy storage battery module is an important energy storage component. In the prior art, the energy storage battery module has the problems of complex structure and high cost.

[0034] In view of this, please refer to Figure 1-Figure 3 The energy storage battery module provided in the embodiment of the utility model can solve this problem, which will be described in detail below.

[0035] Please refer to Figure 1 and Figure 2 In an embodiment of the utility model, an energy storage battery module is provided, which can be suitable for a static use environment.

[0036] The energy storage battery module includes a housing 100, a limiting plate 200 and a plurality of battery cells 300. The bottom of the housing 100 is provided with an exhaust space 101 (such as Figure 3 As shown), the shell 100 is provided with a first air hole 102, the limiting plate body 200 is arranged in the shell 100, the limiting plate body 200 is provided with a plurality of limiting grooves 201, each limiting groove is provided with a second air hole 2011, the second air hole 2011, the first air hole 102 and the exhaust space 101 are connected in sequence, and the plurality of battery cells 300 and the plurality of limiting grooves 201 correspond one to one.

[0037] Wherein, each limiting groove is provided with a second air hole 2011, and the shell 100 is provided with a plurality of first air holes 102, and the plurality of first air holes 102 and the plurality of second air holes 2011 correspond to each other one by one.

[0038] The end of each battery cell 300 is arranged in each limiting groove 201. When the battery cell 300 is out of control, the exhaust space 101 can release pressure through the second air hole 2011 and the first air hole 102 in sequence. The limiting groove 201 can limit the battery cell 300. The battery cell 300 can be fixed by the limiting plate 200. There are fewer fixing parts. While ensuring the structural strength, the overall energy storage battery module has a simple structure and low cost.

[0039] Specifically, in this embodiment, in order to ensure the overall structural strength of the energy storage battery module, the limiting plate body 200 is bonded to the shell 100, and at the same time, each battery cell 300 is bonded to the limiting groove 201, so that the battery cell can be further firmly fixed to the limiting plate body 200.

[0040] At the same time, this reduces the subsequent maintenance costs. For example, when there is a problem with the battery cell, the limit plate body 200 can be separated from the shell body 100. At this time, the limit plate body and the battery cell are taken out together. Generally speaking, the amount of glue used to bond the battery cell and the limiting groove of the limit plate body is less than the amount of glue used to directly bond the battery cell to the shell body, which makes it easy to remove the battery cell from the limit plate body without damaging the battery cell, which is beneficial to reducing the subsequent maintenance costs.

[0041] In addition, it should be noted that the exhaust space 101 is defined by the space between two spaced-apart welded plates at the bottom of the housing 100 .

[0042] In this embodiment, the battery cell 300 is a cylindrical battery cell 300, and the limiting plate body 200 is made of plastic (such as ABS plastic) through a vacuum forming process. That is, the limiting groove 201 of the limiting plate body 200 is formed through a vacuum forming process, and the limiting groove 201 is a circular groove structure to facilitate adaptation to the end of the cylindrical battery cell 300.

[0043] The limiting plate body 200 can be understood as a blister box, which has the advantage of low cost.

[0044] In addition, the energy storage battery module also includes an insulating plate 400, which is simultaneously arranged at the ends of multiple battery cells 300, and the insulating plate 400 and the limiting plate body 200 are distributed at intervals. Specifically, the insulating plate 400 is located at the top of each battery cell 300, and the limiting plate body 200 is located at the bottom of each battery cell 300.

[0045] In order to facilitate heat exchange of the battery cells 300 and adjust the temperature of the battery cells 300 , in this embodiment, the energy storage battery module further includes a cooling plate 500 , and the cooling plate 500 is simultaneously attached to the outer walls of the plurality of battery cells 300 .

[0046] like Figure 2 As shown in the figure, the cooling plate 500 has a serpentine cooling flat tube 510 and a first inlet and outlet liquid pipe 520 and a second inlet and outlet liquid pipe 530 connected to the serpentine flat tube structure. The first inlet and outlet liquid pipe 520, the serpentine flat tube structure and the second inlet and outlet liquid pipe 530 are connected in sequence. It should be noted that the entire liquid cooling plate is an integrated structure.

[0047] Among them, there are multiple serpentine flat tube structures. In this embodiment, the number of serpentine flat tube structures is four, and each serpentine flat tube structure can fit the outer walls of multiple battery cells 300. Here, the outer wall of the battery cell 300 can be understood as a partial peripheral wall of the battery cell 300.

[0048] The first liquid inlet and outlet pipe 520 is connected to the four serpentine flat tube structures at the same time, and the second liquid inlet and outlet pipe 530 is connected to the four serpentine flat tube structures at the same time.

[0049] For example, when the first liquid inlet and outlet pipe 520 serves as the liquid inlet pipe, the second liquid inlet and outlet pipe 530 can be understood as the liquid outlet pipe; or, when the second liquid inlet and outlet pipe 530 serves as the liquid inlet pipe, the first liquid inlet and outlet pipe 520 can be understood as the liquid outlet pipe.

[0050] In order to enhance the structural strength of the entire energy storage battery module, the cooling plate 500 is made of metal material (such as AL3003 material), and the serpentine flat tube structure of the cooling plate 500 and the battery cell 300 are connected by a thermally conductive structural adhesive. The cooling plate 500 can support the battery cell 300.

[0051] In addition, the energy storage battery module also includes a cell signal acquisition component 600, and the cell signal acquisition component 600 is connected to multiple cells 300 at the same time. It should be noted that the cell signal acquisition component 600 can adopt a wiring harness acquisition structure or an FPC acquisition structure.

[0052] In this embodiment, the battery cell signal acquisition component 600 adopts a wiring harness acquisition structure. Of course, in other embodiments, the battery cell signal acquisition component 600 may adopt an FPC acquisition structure (i.e., an FPC acquisition board). It should be noted that when arranging the battery cell signal acquisition component 600, it is necessary to avoid the explosion-proof valve position of the battery cell 300.

[0053] In summary, the energy storage battery module includes a shell 100, a limiting plate body 200 and a plurality of battery cells 300, an exhaust space 101 is provided at the bottom of the shell 100, and the shell 100 is provided with a first air hole 102, the limiting plate body 200 is arranged in the shell 100, the limiting plate body 200 is provided with a plurality of limiting grooves 201, each limiting groove is provided with a second air hole 2011, the second air hole 2011, the first air hole 102 and the exhaust space 101 are connected in sequence, the plurality of battery cells 300 and the plurality of limiting grooves 201 correspond one to one, and the end of each battery cell 300 is arranged in each limiting groove 201.

[0054] Among them, when the battery cell 300 is out of control, the exhaust space 101 can release pressure through the second air hole 2011 and the first air hole 102 in turn, and the limiting groove 201 can limit the battery cell 300. While ensuring the structural strength, the overall energy storage battery module has a simple structure and low cost.

[0055] The energy storage battery module realizes the integration of the cooling plate 500, the battery cell 300 and the housing 100, has a simple structure, and at the same time ensures the structural strength of the overall energy storage battery module. Compared with the existing energy storage battery module, the structural components are simplified and the cost is reduced.

[0056] In addition, the limiting plate 200 is bonded inside the shell 100 , and at the same time, each battery cell 300 is bonded in the limiting groove 201 , thereby ensuring the overall structural strength of the energy storage battery module.

[0057] The cooling plate 500 has a serpentine cooling flat tube 510 and a first liquid inlet and outlet pipe 520 and a second liquid inlet and outlet pipe 530 connected to the serpentine flat tube structure. The first liquid inlet and outlet pipe 520, the serpentine flat tube structure and the second liquid inlet and outlet pipe 530 are connected in sequence. It should be noted that the entire liquid cooling plate is an integrated structure.

[0058] Among them, there are multiple serpentine flat tube structures. In the present embodiment, the number of serpentine flat tube structures is four. Each serpentine flat tube structure can fit the outer walls of multiple battery cells 300. Here, the outer wall of the battery cell 300 can be understood as a partial peripheral wall of the battery cell 300, which is convenient for heat exchange between the battery cells.

[0059] The cooling plate 500 is made of metal material. The serpentine flat tube structure of the cooling plate 500 and the battery cell 300 are connected by a heat-conducting structural adhesive. The cooling plate 500 can support the battery cell 300, thereby enhancing the structural strength of the entire energy storage battery module.

[0060] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An energy storage battery module, characterized in that: include: A shell (100), wherein an exhaust space (101) is provided at the bottom of the shell (100), and the shell (100) is provided with a first air vent (102); a limiting plate body (200), the limiting plate body (200) being arranged in the shell (100), the limiting plate body (200) being provided with a plurality of limiting grooves (201), each limiting groove (201) being provided with a second air vent (2011), the second air vent (2011), the first air vent (102) and the exhaust space (101) being connected in sequence; and A plurality of battery cells (300), wherein the plurality of battery cells (300) and the plurality of limiting grooves (201) correspond one to one, and an end of each battery cell (300) is arranged in each limiting groove (201).

2. The energy storage battery module according to claim 1, characterized in that: The limiting plate body (200) is bonded to the shell (100).

3. The energy storage battery module according to claim 1, characterized in that: The energy storage battery module further comprises an insulating plate (400), wherein the insulating plate (400) is simultaneously arranged at the ends of the plurality of battery cells (300), and the insulating plate (400) and the limiting plate body (200) are spaced apart.

4. The energy storage battery module according to claim 1, characterized in that: Each of the battery cells (300) is bonded in the limiting groove (201).

5. The energy storage battery module according to claim 1, characterized in that: The energy storage battery module further comprises a cooling plate (500), and the cooling plate (500) is simultaneously attached to the outer walls of the plurality of battery cells (300).

6. The energy storage battery module according to claim 5, characterized in that: The cooling plate (500) is made of metal material.

7. The energy storage battery module according to claim 5, characterized in that: The cooling plate (500) and the battery core (300) are connected via a heat-conductive structural adhesive.

8. The energy storage battery module according to claim 1, characterized in that: The energy storage battery module further comprises a cell signal acquisition component (600), and the cell signal acquisition component (600) is connected to a plurality of the cell (300) at the same time.

9. The energy storage battery module according to claim 8, characterized in that: The cell signal acquisition component (600) is a wiring harness acquisition structure or an FPC acquisition structure.

10. The energy storage battery module according to claim 1, characterized in that: The limiting plate body (200) is made of plastic by a vacuum forming process.

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