Module end plate, battery module and battery pack thereof

Abstract

The utility model belongs to the technical field of battery pack liquid cooling energy storage, and discloses a module end plate structure, a battery module and a battery pack thereof. The module end plate comprises a main body part and a connecting part. Specifically, the two main body parts are oppositely arranged at an interval; the connecting parts extend in the first direction, the connecting parts are located between the two main body parts, the two ends of each connecting part are connected with the two main body parts respectively, hanging structures are arranged on at least two connecting parts, and a hoisting mechanism can move in the first direction between the two main body parts and is in matched hanging connection with the hanging structures. According to the utility model, the hoisting mechanism can be connected with the hanging structure in the module end plate, external space does not need to be reserved, the internal space of the module end plate is fully utilized, and in addition, the problem of short circuit caused by contact with positive and negative pole aluminum bars during the external hoisting process of the module end plate is also avoided.

Description

Technical Field

[0001] This utility model relates to the field of liquid-cooled energy storage technology for battery packs, and in particular to the module end plate structure, battery module and battery pack. Background Technology

[0002] With the rapid development of new energy vehicles, portable electronic devices and large-scale energy storage systems, the demand for liquid-cooled energy storage battery packs is constantly increasing, making the battery module hoisting method in the production and assembly process particularly important.

[0003] Due to structural limitations, existing hoisting methods often require sufficient hoisting space outside the module, resulting in low space utilization inside the battery pack. In addition, during external hoisting, it is easy to come into contact with the positive and negative aluminum bars, which can cause a short circuit in the module. Utility Model Content

[0004] The purpose of this utility model is to provide a module end plate, a battery module and its battery pack. The hoisting mechanism can be connected to the hanging structure inside the module end plate without reserving external space, making full use of the internal space of the module end plate. In addition, it also avoids the problem of short circuit caused by contact with the positive and negative aluminum bars during the hoisting process outside the module end plate.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Module endplate, including:

[0007] Main body, two main body parts are arranged opposite each other and spaced apart;

[0008] A connecting portion, wherein a plurality of the connecting portions extend along a first direction, the connecting portions are located between two main body portions, and the two ends of the connecting portions are respectively connected to the two main body portions, at least two of the connecting portions are provided with a hooking structure, and the two main body portions allow a hoisting mechanism to move along the first direction and engage with the hooking structure.

[0009] As an optional solution for the module end plate, the mounting structure includes a through hole provided on the connecting part.

[0010] As an alternative to the module end plate, the main body portion furthest from the battery cell among the two main body portions is provided with an observation hole, which is relative to the through hole.

[0011] As an optional solution for the module end plate, the observation hole is connected to the through hole.

[0012] As an optional solution for the module end plate, the connecting part is a reinforcing rib plate, and the connecting part with the hanging structure is perpendicular to the main body.

[0013] As an optional solution for the module end plate, a clearance hole extending along the first direction is formed between the connecting part of the hook structure and the adjacent connecting part. The clearance hole is used for the hoisting mechanism to extend into and engage with the hook structure.

[0014] As an optional solution for the module end plate, the connecting part and the main body are an integral structure.

[0015] A battery module includes battery cells, a cover plate, and a frame. The frame includes two opposing module side plates and two or more module end plates as described in any of the above embodiments. The module side plates and the module end plates enclose an installation space. A plurality of battery cells are placed within the installation space, and the cover plate covers the installation space.

[0016] As an alternative to the battery module, the battery module further includes a connector, and a plurality of mounting portions are provided between the two main body portions. The mounting portions are provided with mounting holes extending along the first direction, and the mounting holes are used for the connector to pass through and fix the connector in a pre-installation position.

[0017] A battery pack, including a housing and a plurality of battery modules of the above-described scheme disposed inside the housing.

[0018] Beneficial effects:

[0019] In the first aspect of this invention, two main body parts face each other, with a certain gap between them to accommodate multiple connecting parts. The connecting parts enhance the strength of the entire module end plate. Each connecting part has a hooking structure that can cooperate with a lifting mechanism. Specifically, before hooking, the lifting mechanism is first inserted between the two main body parts, and then the lifting mechanism is hooked to the hooking structure. In this invention, the lifting mechanism can directly penetrate the interior of the module end plate and hook to the hooking structure, thus fully utilizing the internal space of the module end plate without needing to reserve external space. Furthermore, it avoids short circuits caused by contact with the positive and negative aluminum electrodes during external lifting of the module end plate.

[0020] In the second aspect of this utility model, the battery module based on the module end plate can make full use of the internal space of the module end plate during the hoisting process, and also avoids the problem of short circuit caused by contact with the positive and negative aluminum bars during the hoisting process outside the module end plate.

[0021] In the third aspect of this utility model, the battery pack based on the above battery module can avoid short circuit problems and improve safety when disassembling and installing the entire battery module. Attached Figure Description

[0022] Figure 1This is an isometric view of the hoisting mechanism and module end plate connection provided in this embodiment of the utility model;

[0023] Figure 2 This is a top view of the hoisting mechanism and module end plate connection provided in this embodiment of the utility model;

[0024] Figure 3 yes Figure 2 Sectional view at section AA;

[0025] Figure 4 This is an isometric view of a battery module equipped with the end plate of this module provided in an embodiment of the present invention;

[0026] Figure 5 This is a side view of a battery module with the module end plate provided in this embodiment of the utility model.

[0027] In the picture:

[0028] X, first direction; 100, battery cell;

[0029] 1. Main body; 11. Observation hole; 12. Mounting part; 121. Mounting hole;

[0030] 2. Connecting part; 21. Hanging structure;

[0031] 3. Clearance hole;

[0032] 4. Lifting mechanism; 41. Lifting rod; 42. Lifting hook. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] Please see the appendix Figure 1 - Appendix Figure 3 The first aspect of this embodiment relates to a module end plate, wherein the module end plate includes a main body 1 and a connecting part 2. Specifically, the first direction X is a vertical direction, and two main bodies 1 are arranged opposite each other and spaced apart; a plurality of connecting parts 2 extend along the first direction X, the connecting parts 2 are located between the two main bodies 1, and the two ends of the connecting parts 2 are respectively connected to the two main bodies 1, at least two of the connecting parts 2 are provided with a hooking structure 21, and the two main bodies 1 can be used to allow a hoisting mechanism 4 to move along the first direction X and to engage with the hooking structure 21. The main body 1 is a rectangular plate structure and is made of aluminum plate, wherein the plate surfaces of the two main bodies 1 face each other, and a certain gap is formed between the two main bodies 1 to accommodate the plurality of connecting parts 2. The connecting parts 2 are provided with a hooking structure 21 that can engage with the hoisting mechanism 4. Specifically, before engaging, the hoisting mechanism 4 is first inserted between the two main bodies 1, and then the hoisting mechanism 4 is engaged with the hooking structure 21.

[0038] In this embodiment, the hoisting mechanism 4 can directly penetrate between the two main parts 1 of the module end plate and be connected to the hanging structure 21. Therefore, the internal space of the module end plate can be fully utilized without reserving external space. In addition, it can also avoid contact with the positive and negative aluminum bars during the hoisting process outside the module end plate, thus avoiding short circuit problems.

[0039] Optionally, the connecting part 2 is a reinforcing rib plate, and the connecting part 2 with the hanging structure 21 is perpendicular to the main body part 1.

[0040] In this embodiment, the connecting part 2 can also be a strip-shaped plate structure. The connecting parts 2 can be parallel to each other or at an angle to each other. The setting of the connecting part 2 can act as a reinforcing rib, thereby strengthening the strength of the entire module end plate. In addition, the connecting part 2 with the hanging structure 21 is perpendicular to the main body 1, ensuring that when the lifting mechanism 4 lifts the module end plate, the two positions where the connecting part 2 is connected to the main body 1 are subjected to the same force, thereby ensuring the safety of the lifting.

[0041] Optionally, the mounting structure 21 includes a through hole provided on the connecting part 2.

[0042] In this embodiment, the hook-up structure 21 can be a through hole provided on the connecting part 2 and cooperating with the lifting mechanism 4, or it can be a lifting lug or lifting ring formed on the connecting part 2. Forming a through hole directly on the connecting part 2 facilitates processing and ensures economy under the condition that the lifting strength allows. The through hole can be a rectangular hole, a circular hole, or other polygonal holes or irregular holes, as long as it can reliably hook-up with the lifting mechanism 4.

[0043] Please see the appendix Figure 4 and attached Figure 5 Furthermore, the main body 1 that is away from the battery cell 100 among the two main body parts 1 is provided with an observation hole 11, which is opposite to the through hole.

[0044] In this embodiment, during installation, one side of the main body 1 is close to the battery cell 100, and the other side faces outward. An observation hole 11 is provided on the outward-facing main body 1. The position of the observation hole 11 is relative to the through hole. When the hoisting mechanism 4 extends between the two main body parts 1 along the first direction X, it is often necessary to adjust the orientation of the hoisting mechanism 4 to accurately align with the hanging structure 21. The operator can directly observe whether the orientation of the hoisting mechanism 4 is accurate through the observation hole 11 and adaptively adjust the orientation of the hoisting mechanism 4 to the accurate alignment position, thereby achieving rapid alignment and improving the efficiency of the alignment operation. Furthermore, the observation hole 11 is connected to the through hole, allowing convenient and unobstructed observation of the orientation of the hoisting mechanism 4 and whether the alignment status is accurate.

[0045] Optionally, a clearance hole 3 extending in the first direction X is formed between the connecting part 2 of the hook structure 21 and the adjacent connecting part 2 thereto. The clearance hole 3 is used for the hoisting mechanism 4 to extend into and engage with the hook structure 21.

[0046] In this embodiment, two adjacent connecting parts 2 are spaced sufficiently apart to form a clearance hole 3 between them. The clearance hole 3 can be rectangular or other quadrilateral structures. The distance between them is greater than the overall width of the hoisting mechanism 4, allowing the hoisting mechanism 4 to easily pass through the clearance hole 3 and penetrate between the two main body parts 1. It also provides sufficient space to adjust the orientation of the hoisting mechanism 4 and smoothly engage with the hanging structure 21. The clearance hole 3 is naturally formed after the two connecting parts 2 are installed; those skilled in the art only need to reasonably set the distance between the two connecting parts 2.

[0047] Optionally, the hoisting mechanism 4 includes a boom 41 and a hook 42 located at the end of the boom 41. The hook 42 is used to engage with the hanging structure 21.

[0048] In this embodiment, the end of the lifting rod 41 furthest from the hook 42 is connected to the driving component. The driving component pulls the lifting rod 41 upward, causing the hook 42 and the entire module end plate to move upward. Furthermore, the hook 42 is curved to smoothly hook onto the through hole. The lifting rod 41 is a cylindrical straight rod. The lifting rod 41 and the hook 42 are an integral structure, and both are made of high-strength, wear-resistant metal materials, such as stainless steel.

[0049] Optionally, the connecting part 2 and the main body part 1 are an integral structure.

[0050] In this embodiment, the connecting part 2 and the main body 1 are an integral structure, which can be manufactured by die casting and machining. The integral structure of the connecting part 2 and the main body 1 can reduce costs and assembly steps, improve manufacturability and reduce costs.

[0051] Please continue to refer to the appendix. Figure 4 and attached Figure 5 The second aspect of this embodiment also relates to a battery module, which includes a battery cell 100, a cover plate and a frame. The frame includes two opposing module side plates and two opposing module end plates. The module side plates and module end plates surround and form an installation space. A plurality of battery cells 100 are placed in the installation space, and the cover plate covers the installation space.

[0052] Specifically, the cover and frame encapsulate multiple battery cells 100 within the installation space, thereby protecting the battery cells 100. Based on this module end plate, the battery module can make full use of the internal space of the module end plate during hoisting, and also avoids short circuit problems caused by contact with the positive and negative aluminum bars during the hoisting process outside the module end plate.

[0053] Furthermore, the battery module also includes connectors, and a plurality of mounting portions 12 are provided between the two main body portions 1. The mounting portions 12 are provided with mounting holes 121 extending along the first direction X. The mounting holes 121 are used for the connectors to pass through and to fix the connectors in the pre-installation position.

[0054] In this embodiment, two mounting parts 12 are respectively disposed on both sides of the two main body parts 1 along the length direction, and can be integrally formed with the main body parts 1. The two mounting parts 12 are provided with mounting holes 121 along the first direction X. The mounting holes 121 are circular holes, and the connecting parts can be long straight rivets or screws, which pass through the mounting holes 121 and connect to the pre-installation positions on the fixing frame. The mounting parts 12 facilitate the standardized installation of the entire battery module.

[0055] The third aspect of this embodiment also relates to a battery pack, which includes a housing and a plurality of battery modules, wherein the battery modules are disposed inside the housing.

[0056] Based on this battery module, the battery pack can avoid short circuits during the disassembly and installation of the entire battery module, thus improving safety.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A module end plate, characterized in that, include: The main body (1) consists of two main body parts (1) arranged opposite each other and spaced apart. A connecting part (2), a plurality of connecting parts (2) extending along a first direction (X), the connecting part (2) being located between two main body parts (1), and the two ends of the connecting part (2) being connected to the two main body parts (1) respectively, at least two of the connecting parts (2) being provided with a hooking structure (21), and the two main body parts (1) being able to allow the hoisting mechanism (4) to move along the first direction (X) and to engage with the hooking structure (21).

2. The module end plate according to claim 1, characterized in that, The mounting structure (21) includes a through hole provided on the connecting part (2).

3. The module end plate according to claim 2, characterized in that, An observation hole (11) is provided in the body part (1) that is away from the battery cell (100) among the two main body parts (1), and the observation hole (11) is opposite to the through hole.

4. The module end plate according to claim 3, characterized in that, The observation hole (11) is connected to the through hole.

5. The module end plate according to claim 1, characterized in that, The connecting part (2) is a reinforcing rib plate, and the connecting part (2) with the hanging structure (21) is perpendicular to the main body part (1).

6. The module end plate according to claim 1, characterized in that, An obstacle hole (3) extending in the first direction (X) is formed between the connecting part (2) of the hook structure (21) and the adjacent connecting part (2), the obstacle hole (3) is used for the hoisting mechanism (4) to extend into and engage with the hook structure (21).

7. The module end plate according to any one of claims 1-6, characterized in that, The connecting part (2) and the main body part (1) are an integral structure.

8. A battery module, characterized in that, The device includes a battery cell (100), a cover plate, and a frame. The frame includes two opposing module side plates and two opposing module end plates as described in any one of claims 1-7. The module side plates and the module end plates enclose an installation space. A plurality of the battery cells (100) are placed within the installation space, and the cover plate covers the installation space.

9. The battery module according to claim 8, characterized in that, The battery module also includes a connector, and a plurality of mounting portions (12) are provided between the two main body portions (1). The mounting portions (12) are provided with mounting holes (121) extending along the first direction (X). The mounting holes (121) are used for the connector to pass through and fix the connector in the pre-installation position.

10. A battery pack, characterized in that, It includes a housing and a plurality of battery modules as described in claim 8 or 9 disposed inside the housing.

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