Module end plate, battery module and battery pack

Abstract

The utility model relates to a module end plate, a battery module and a battery pack. The module end plate comprises a non-metal end plate and a first nut, a plurality of structural grooves are formed in one end, in the first direction, of the non-metal end plate, first fixing holes are formed in the structural grooves, one parts of the first fixing holes extend in the first direction, and the other parts of the first fixing holes extend in the second direction. The second direction is perpendicular to the first direction, the first nut is embedded in the first fixing hole, and a clamping groove matched with a steel bandage is formed in the non-metal end plate. According to the module end plate disclosed by the utility model, the types and the quantity of materials of the battery module can be reduced, the production cost and the assembly difficulty of the battery module are reduced, the production efficiency of the battery module is improved, and the insulating property of the battery module is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery energy storage technical field, concretely relates to a module end plate, battery module and battery pack. BACKGROUND

[0002] The module end plate is the main component in the battery energy storage system, the function of the module end plate is to bundle the battery cell to form the battery module, and the battery module can be fixed to the battery box through the module end plate.In the battery module stacking production process, the output pole base (the pole column output base is used to install the CCS) and the module end plate insulating plate need to be installed on the module end plate, and the processing procedure is more, and the battery, the metal module end plate and the insulating plate are pasted together, which is difficult to operate, and the three can not be aligned at one time, and sometimes need to be pasted repeatedly, which not only affects the efficiency, but also causes the adhesive paste force to decrease, affects the paste quality, and even causes the insulating plate to be scrapped. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the related art at least to some extent.

[0004] Therefore, the embodiment of the utility model provides a module end plate, which can effectively reduce the types and quantity of materials required by the battery module, reduce the operation procedure in the production process of the battery module, and improve the production efficiency and insulation performance of the battery module.

[0005] The embodiment of the utility model provides a battery module.

[0006] The embodiment of the utility model provides a battery pack.

[0007] According to the module end plate provided by the embodiment of the utility model, the non-metal end plate is provided with a plurality of structure grooves at one end in the first direction, the structure groove is provided with a first fixing hole, a part of the plurality of first fixing holes extends along the first direction, another part of the plurality of first fixing holes extends along the second direction, the second direction is perpendicular to the first direction, the first fixing hole is embedded with the first nut, and the non-metal end plate is provided with a clamping groove matched with the steel binding belt.

[0008] The module end plate of the embodiment of the utility model can reduce the types and quantity of materials of the battery module, reduce the production cost and assembly difficulty of the battery module, improve the production efficiency of the battery module, and increase the insulation performance of the battery module.

[0009] In some embodiments, one end of the non-metallic end plate is provided with grooves on both sides in the third direction, and the bottom wall of the groove is provided with a long screw mounting through hole. The long screw mounting through hole extends along the first direction, and the third direction is orthogonal to the first direction and the second direction. The non-metallic end plate is provided with a lifting groove on both sides in the third direction, and the lifting groove communicates with the long screw mounting through hole.

[0010] In some embodiments, the dimension of the hoisting slot in the first direction is greater than the dimension in the third direction.

[0011] In some embodiments, the non-metallic end plate is provided with a plurality of first weight-reducing grooves, the first weight-reducing grooves being distributed at the middle and the other end of the non-metallic end plate in the first direction, and the first weight-reducing grooves extending along the second direction; and / or, the structural groove is provided with a plurality of second weight-reducing grooves, the second weight-reducing grooves extending along the second direction; and / or, in the first direction, the slot opposite to the first nut is provided with a third weight-reducing groove, the third weight-reducing groove extending along the second direction.

[0012] In some embodiments, the non-metallic end plate has a blind hole at the center in the first direction.

[0013] In some embodiments, the module end plate further includes a second nut, and the non-metallic end plate has a second fixing hole in the middle of the first direction, and the second fixing hole is fitted with the second nut.

[0014] In some embodiments, the module end plate further includes a third nut, and a third fixing hole is provided on one end of the non-metallic end plate. The third fixing hole is located between a plurality of structural grooves in a third direction, and the third fixing hole extends along the first direction. The third fixing hole is embedded in the third nut.

[0015] The battery module of this utility model embodiment includes multiple battery cells, a module end plate, and a steel strap. The multiple battery cells are stacked sequentially along the second direction. The module end plate is the module end plate described in any of the above embodiments. The non-metallic end plate abuts against the battery cells located on the outer side. The steel strap is fitted into the slot.

[0016] In some embodiments, the battery module further includes foam located between the non-metallic end plate and the battery cell.

[0017] The battery pack of this utility model embodiment includes the aforementioned battery module. Attached Figure Description

[0018] Figure 1This is one of the structural schematic diagrams of the module end plate in an embodiment of this utility model;

[0019] Figure 2 This is the second structural schematic diagram of the module end plate according to an embodiment of this utility model;

[0020] Figure 3 This is the third schematic diagram of the module end plate of this utility model embodiment;

[0021] Figure 4 This is a schematic diagram of the battery module according to an embodiment of the present invention.

[0022] Figure label:

[0023] Battery module 1000;

[0024] Module end plate 100;

[0025] Non-metallic end plate 1, structural groove 11, first fixing hole 12, slot 13, groove 14, long screw mounting through hole 15, lifting groove 16, first weight reduction groove 17, second weight reduction groove 18, third weight reduction groove 19, blind hole 110, second fixing hole 111, third fixing hole 112, first nut 2, second nut 3.

[0026] Battery cell 200, steel strap 300, foam 400. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following is a reference to the appendix. Figures 1 to 4 This document describes in detail the module end plate 100, battery module 1000, and battery pack of this utility model embodiment.

[0029] The module end plate 100 of this utility model embodiment includes a non-metallic end plate 1 and a first nut 2, wherein the non-metallic end plate 1 is in a first direction (e.g., in the first direction) Figure 1 One end of the structure 11 (in the vertical direction) is provided with a plurality of structural grooves 11, and the structural grooves 11 are provided with first fixing holes 12. A portion of the plurality of first fixing holes 12 extends along a first direction, and another portion of the plurality of first fixing holes 12 extends along a second direction (e.g., in the vertical direction). Figure 1 The second direction extends in the front-back direction, which is perpendicular to the first direction. The first fixing hole 12 is embedded with the first nut 2, and the non-metallic end plate 1 is provided with a slot 13 that cooperates with the steel strap 300.

[0030] The battery module 1000 of this embodiment includes multiple battery cells 200, a module end plate 100, and a steel strap 300. The multiple battery cells 200 are stacked sequentially along the second direction. The non-metallic end plate 1 abuts against the battery located on the outer side. The steel strap 300 is fitted in a slot 13 and surrounds the battery module 1000 to fix the battery cells 200 and the module end plate 100.

[0031] When assembling the battery module 1000, multiple battery cells 200 are arranged and stacked in the front-to-back direction to form a battery cell group. Module end plates 100 are placed at both ends of the battery cell group. The battery group and module end plates are pressed using a pressing tool. Then, the entire battery module 1000 is bound together into a whole using steel straps 300. After that, the CCS is placed directly on top of the module and then connected to the first nut 2 on the non-metallic end plate 1 using screws.

[0032] In this embodiment of the invention, the module end plate 100 integrates the first fixing hole 12 for cooperating with the CCS onto the non-metallic end plate 1, eliminating the need for installing the output terminal in related technologies. This reduces the types and quantities of materials used in the battery module 1000, and also reduces the assembly steps of the battery module 1000. Furthermore, there are multiple first fixing holes 12, see [reference]. Figure 1 As shown, a portion of the first fixing hole 12 extends along the first direction and faces upward, while another portion of the first fixing hole 12 extends along the second direction and faces forward. When installing the CCS, it is installed in the first nut 2 of the first fixing hole 12 with the corresponding orientation as needed, which can facilitate the installation of the CCS in the battery module 1000, thereby improving the production efficiency of the battery module 1000.

[0033] The module end plate 100 of this utility model embodiment is made of non-metallic material and has insulating properties. Therefore, when assembling the battery module 1000, there is no need to set an insulating plate between the battery cell 200 and the module end plate 100. This eliminates the need to ensure the bonding and alignment between the battery and the insulating plate, and between the module end plate 100 and the insulating plate. This not only reduces the cost of the battery module 1000, but also reduces the assembly steps of the battery module 1000, making assembly simple and convenient, thereby improving the production efficiency of the battery module 1000.

[0034] Therefore, the module end plate 100 of this utility model embodiment can reduce the types and quantities of materials in the battery module 1000, reduce the production cost and assembly difficulty of the battery module 1000, improve the production efficiency of the battery module 1000, and increase the insulation performance of the battery module 1000.

[0035] To make the scheme of this application easier to understand, the following example is used: the first direction is the same as the up-down direction, the second direction is the same as the front-back direction, and the third direction is the same as the left-right direction. The up-down direction is as follows: Figure 1 , Figure 2 and Figure 4 As shown, the front and back directions are as follows Figure 1 , Figure 3 and Figure 4 As shown, the left and right directions are as follows Figures 1 to 4 As shown.

[0036] The module end plate 100 of this utility model embodiment includes a non-metallic end plate 1, a first nut 2, a second nut 3, and a third nut.

[0037] The non-metallic end plate 1 is made of MFP material, which is a hybrid glass fiber composite material. The non-metallic end plate 1 is integrally formed by molding or hot pressing.

[0038] The non-metallic end plate 1 has four structural grooves 11 at one end (upper end) in the first direction. Each structural groove 11 has a first fixing hole 12, into which a first nut 2 is embedded. The four structural grooves 11 are arranged in pairs to form two groups, symmetrically distributed on the left and right sides of the non-metallic end plate 1. In each group, one structural groove 11 faces upwards and the other faces forwards. The first fixing hole 12 on the upward-facing structural groove 11 extends vertically, and the first fixing hole 12 on the forward-facing structural groove 11 extends forward-backwards.

[0039] Furthermore, a third fixing hole 112 is provided on one end (upper end) of the non-metallic end plate 1. The third fixing hole 112 is located between multiple structural grooves 11 in the third direction. The third fixing hole 112 extends along the first direction, and a third nut is embedded in the third fixing hole 112. Figure 1 As shown, the third fixing hole 112 is located between the left and right structural grooves 11. When installing the CCS vacuum forming bracket, the CCS vacuum forming bracket is placed on the non-metallic end plate 1 and connected using screws and the third nut. The third fixing hole and the third nut increase the convenience of installing the non-metallic end plate 1 and the CCS auxiliary components.

[0040] In some embodiments, the non-metallic end plate 1 has grooves 14 on both sides of the third direction at one end. A long screw mounting through hole 15 is provided on the bottom wall of the groove 14. The long screw mounting through hole 15 extends along the first direction, and the third direction is orthogonal to the first and second directions. The non-metallic end plate 1 has lifting slots 16 on both sides of the third direction, and the lifting slots 16 communicate with the long screw mounting through hole 15.

[0041] like Figure 1As shown, the non-metallic end plate 1 has long screw mounting through holes 15 and lifting slots 16 on both its left and right sides. The connection between the long screw mounting through holes 15 and the lifting slots 16 allows them to cooperate with lifting equipment, thereby enabling the lifting of the module end plate 100. This facilitates the movement of the module end plate 100 and the battery module 1000, further improving the production efficiency of the battery module 1000. Furthermore, the presence of the long screw mounting through holes 15 and the lifting slots 16 also reduces the weight of the non-metallic end plate 1, thereby reducing the weight of the battery module 1000 and the battery pack.

[0042] In some embodiments, the dimension of the lifting slot 16 in the first direction is larger than the dimension in the third direction. Therefore, the lifting slot 16 has a certain length, which helps to further reduce the weight of the non-metallic end plate 1, thereby further reducing the weight of the battery module 1000 and the battery pack.

[0043] like Figure 1 As shown, the non-metallic end plate 1 is provided with four slots 13. The non-metallic end plate 1 is provided with slots 13 on both the left and right sides at the same height. Two slots 13 at the same height cooperate with a steel strap 300 to lock the steel strap 300, prevent the steel strap 300 from moving or misaligning, and ensure the fixing effect of the steel strap 300 to the battery module 1000.

[0044] Furthermore, the non-metallic end plate 1 is provided with a plurality of first weight-reducing grooves 17, which are distributed in the middle and at the other end of the non-metallic end plate 1 in the first direction, and extend along the second direction. Figure 1 As shown, the first weight-reducing groove 17 is distributed in the middle and lower part of the non-metallic end plate 1, and the first weight-reducing groove 17 is rectangular.

[0045] The structural groove 11 is provided with a plurality of second weight-reducing grooves 18, which extend along the second direction. For example... Figure 1 As shown, the second weight-reducing groove 18 is located on the forward-facing structural groove 11, and the second weight-reducing groove 18 is adjacent to the first fixing hole 12 without interfering with it.

[0046] In this first direction, a third weight-reducing groove 19 is provided on the slot 13 opposite to the first nut 2, and the third weight-reducing groove 19 extends along the second direction. For example... Figure 1 As shown, a third weight-reduction groove 19 is provided on the card slot 13 located below.

[0047] In some embodiments, the non-metallic end plate 1 has a blind hole 110 at its center in the first direction. The blind hole 110 can cooperate with a robot to facilitate the robot to move the module end plate 100, thereby facilitating the movement of the module end plate 100 on the automated production assembly line and further improving the production efficiency of the battery module 1000.

[0048] The non-metallic end plate 1 has a second fixing hole 111 at its center in the first direction, and a second nut 3 is embedded in the second fixing hole 111. Figure 1 As shown, the second fixing hole 111 is located below the blind hole 110. The second nut 3 can cooperate with the screw to form a connection fixing point on the front side of the non-metallic end plate 1. Then, when it is necessary to fix the communication harness during the assembly or use of the battery module 1000, it is convenient to use cable ties to bind the communication harness and fix it at this position, providing a support fixing point for the communication harness and ensuring the stability of the communication harness.

[0049] In some embodiments, the battery module 1000 further includes foam 400, with foam 400 disposed between the non-metallic end plate 1 and the battery cell 200, and foam disposed between the battery cells 200.

[0050] In this embodiment of the utility model, the battery module 1000 uses foam 400 disposed between the module end plate 100 and the battery cell 200. The battery module and the module end plate 100 can be squeezed by the extrusion tool, and the foam 400 achieves the purpose of bonding and fixing the module end plate 100 and the battery cell 200. In addition, the foam 400 has a certain degree of elasticity, which can absorb the expansion force generated by the expansion of the battery cell 200 during the operation of the battery module 1000, thereby improving the safety of the battery module 1000.

[0051] Specifically, foam 400 refers to CR foam 400 neoprene rubber foam material or silicone foam 400.

[0052] The following describes the battery pack according to an embodiment of the present invention.

[0053] The battery pack of this utility model embodiment includes the battery module 1000 of any of the above embodiments.

[0054] Therefore, the battery pack of this utility model embodiment has the advantages of fewer types and quantities of materials, lower cost, and higher production efficiency.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A module end plate (100) characterized by, The non-metal end plate (1) is provided with a plurality of structure grooves (11) at one end in a first direction, and a first fixing hole (12) is arranged on the structure groove (11), a part of a plurality of the first fixing holes (12) extends along the first direction, another part of a plurality of the first fixing holes (12) extends along a second direction, the second direction is perpendicular to the first direction, and the first fixing hole (12) is embedded with the first nut (2), and the non-metal end plate (1) is provided with a clamping groove (13) matched with a steel binding belt (300).

2. The module end plate (100) according to claim 1, characterized in that The one end of the non-metal end plate (1) is provided with a groove (14) on both sides in a third direction, a long screw rod mounting through hole (15) is arranged on the bottom wall surface of the groove (14), the long screw rod mounting through hole (15) extends along the first direction, the third direction is orthogonal to the first direction and the second direction, and the non-metal end plate (1) is provided with a hoisting groove (16) on both sides in the third direction, and the hoisting groove (16) is communicated with the long screw rod mounting through hole (15).

3. The module end plate (100) according to claim 2, characterized in that The size of the hoisting groove (16) in the first direction is greater than that in the third direction.

4. The module end plate (100) of claim 1, wherein, The non-metal end plate (1) is provided with a plurality of first weight reduction grooves (17), the first weight reduction grooves (17) are distributed in the middle and the other end of the non-metal end plate (1) in the first direction, and the first weight reduction grooves (17) extend along the second direction; and / or, a plurality of second weight reduction grooves (18) are arranged on the structure groove (11), the second weight reduction grooves (18) extend along the second direction; and / or, in the first direction, a third weight reduction groove (19) is arranged on the clamping groove (13) away from the first nut (2), and the third weight reduction groove (19) extends along the second direction.

5. The module end plate (100) of claim 1, wherein, The non-metal end plate (1) is provided with a blind hole (110) in the middle in the first direction.

6. The module end plate (100) of claim 1, wherein, Further comprising a second nut (3), the non-metal end plate (1) is provided with a second fixing hole (111) in the middle in the first direction, and the second fixing hole (111) is embedded with the second nut (3).

7. The module end plate (100) of claim 1, wherein, Further comprising a third nut, the one end of the non-metal end plate (1) is provided with a third fixing hole (112), the third fixing hole (112) is located between a plurality of the structure grooves (11) in the third direction, the third fixing hole (112) extends along the first direction, and the third fixing hole (112) is embedded with the third nut.

8. A battery module (1000), characterized in that, It comprises: A plurality of battery cells (200), a plurality of the battery cells (200) are stacked in sequence along the second direction; A module end plate (100), the module end plate (100) is the module end plate (100) of any one of claims 1 to 7, the non-metal end plate (1) abuts the battery cell (200) located on the outside; and a steel binding belt (300), the steel binding belt (300) is matched in the clamping groove (13).

9. The battery module (1000) according to claim 8, characterized in that Further comprising a foam (400) located between the non-metal end plate (1) and the battery cell (200).

10. A battery pack, characterized by, The battery module (1000) according to claim 8 or 9 is further included.

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