Movable beam battery pack

Abstract

The utility model relates to the technical field of power batteries, in particular to a movable beam battery pack which comprises a box body, a battery cell module and a movable beam, the interior of the box body is of a hollow structure, the battery cell module is arranged in the box body in the length direction of the box body, and the movable beam is arranged in the box body. And the movable beam is movably arranged on the side surface of the battery cell module along the width direction of the box body. According to the movable beam battery pack provided by the utility model, the movable beam is arranged in the box body, is used as an independent part and is not integrated with the box body, so that the movable beam battery pack can adapt to battery cell modules with different thicknesses; in addition, the movable beam and the fixed block are connected through a bolt, so that the initial mounting pre-tightening force of the battery cell can be adjusted. Therefore, the battery pack disclosed by the utility model can solve the technical problems that the existing battery pack cannot be compatible with the battery cell modules with different thicknesses, and the initial mounting pre-tightening force fluctuation of the battery cells is relatively large.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a movable beam battery pack. Background Art

[0002] The development of power battery technology primarily focuses on materials and structures. At the structural level, there is a clear trend toward larger cells, de-modularization, and integration. CTP (Cell to Pack) improves battery pack integration by eliminating modules or integrating larger modules.

[0003] Existing solutions for securing cell modules within battery packs typically involve applying glue to the cell bottom and adding mounting beams, which are then welded to the box frame. However, this welding method presents several issues: For different power configurations within the same vehicle model, the fixed connection between the mounting beam and the box body cannot accommodate cell modules of varying thicknesses, resulting in poor compatibility. Furthermore, cell thickness varies significantly across different power configurations, leading to significant fluctuations in the initial preload force of the fixed mounting beam.

[0004] Therefore, existing battery packs are not compatible with cell modules of different thicknesses, and the initial installation preload force of the cells fluctuates greatly. Utility Model Content

[0005] The purpose of the utility model is to provide a movable beam battery pack, which can solve the technical problems that the existing battery pack is not compatible with battery modules of different thicknesses and the initial installation pre-tightening force of the battery cells fluctuates greatly.

[0006] To achieve the above-mentioned purpose, the utility model designs a movable beam battery pack, which includes a box body, a battery cell module, and a movable beam. The interior of the box body is a hollow structure, the battery cell module is arranged inside the box body along the length direction of the box body, and the movable beam is movably arranged on the side of the battery cell module along the width direction of the box body.

[0007] As a preferred solution, the movable beam battery pack further includes a fixing block, which is fixedly arranged on the inner side of the box body, and is connected to the movable beam by bolts.

[0008] As a preferred solution, the movable beam includes a baffle and a mounting arm. The baffle is movably arranged in the box along the width direction of the box. The mounting arm is arranged on the baffle and is close to one side of the fixed block.

[0009] Furthermore, the interior of the mounting arm is a hollow structure, and the fixing block is connected to the upper end of the mounting arm via bolts.

[0010] Furthermore, there are multiple mounting arms and multiple fixing blocks.

[0011] Furthermore, the height of the baffle matches the height of the battery cell module.

[0012] Beneficial effects of the utility model:

[0013] This utility model provides a movable beam battery pack. By installing a movable beam within the housing, the movable beam is a separate component, not integrated with the housing, making it adaptable to battery cell modules of varying thicknesses. Furthermore, the movable beam and fixed block are connected by bolts, allowing for adjustable initial cell preload. Therefore, this utility model addresses the technical issues of existing battery packs being incompatible with cell modules of varying thicknesses and experiencing significant fluctuations in initial cell preload. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded schematic diagram of the box body and movable beam of the utility model.

[0015] Figure 2 This is a schematic diagram of the assembly of the box body and the movable beam of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Description of reference numerals:

[0018] Box body 1, battery cell module 2, movable beam 3, fixing block 4, baffle 5, mounting arm 6. DETAILED DESCRIPTION

[0019] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of it.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] This utility model relates to a battery pack with a movable beam. Before assembly, the movable beam is a separate component, not integrated with the housing. The movable beam can be freely moved along the length of the housing to adjust its position. The movable beam is connected to a fixed block via bolts. This battery pack accommodates varying numbers of battery cells, reducing the number of housing options and preventing fluctuations in preload force caused by variations in cell thickness.

[0023] The utility model provides a movable beam battery pack, comprising a box body 1, a battery cell module 2, and a movable beam 3. The interior of the box body 1 is a hollow structure, the battery cell module 2 is arranged inside the box body 1 along the length direction of the box body 1, and the movable beam 3 is movably arranged on the side of the battery cell module 2 along the width direction of the box body 1.

[0024] The movable beam battery pack further includes a fixing block 4 , which is fixedly disposed on the inner side of the box body 1 , and is connected to the movable beam 3 via bolts.

[0025] The movable beam 3 includes a baffle 5 and a mounting arm 6. The baffle 5 is movably mounted within the housing 1 along the width of the housing 1. The mounting arm 6 is mounted on the baffle 5, adjacent to the fixed block 4. The mounting arm 6 is hollow, and the fixed block 4 is bolted to the upper end of the mounting arm 6. Multiple mounting arms 6 and multiple fixed blocks 4 are provided. The height of the baffle 5 matches the height of the battery cell module 2.

[0026] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0027] like Figure 1 、 2 As shown, the battery pack includes a box body 1, a battery cell module 2, a movable beam 3, and a fixing block 4. Before the battery pack is assembled, the movable beam 3 is a component independent of the box body 1. The position of the movable beam 3 in the battery pack box body 1 is shown in FIG. Figure 2 As shown, the position of the box 1 can be freely adjusted along the length. The movable beam 3 can accommodate different numbers of battery cells. The length of the mounting arm 6 connecting the movable beam 3 and the fixed block 4 can be adjusted according to project requirements.

[0028] like Figure 3As shown, individual battery cells are stacked along the length of the box to form a cell module 2 and placed within the box 1. Given a fixed number of cells, the installation position of the movable beam 3 can be fine-tuned along the length of the box 1 to accommodate dimensional fluctuations in the cell thickness and ensure consistency in the initial preload. Once the position of the movable beam 3 is determined, it is fastened to the fixing block 4 using bolts.

[0029] This battery pack incorporates a movable beam within the housing. As a separate component, the movable beam is independent of the housing, allowing it to accommodate cell modules of varying thicknesses. Furthermore, the movable beam and fixed block are connected via bolts, allowing for adjustable initial cell preload. This solves the technical issues of existing battery packs, such as the incompatibility of cell modules of varying thicknesses and the significant fluctuations in initial cell preload.

[0030] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A movable beam battery pack, characterized in that: The invention comprises a box body (1), a battery cell module (2), and a movable beam (3); the interior of the box body (1) is a hollow structure; the battery cell module (2) is arranged inside the box body (1) along the length direction of the box body (1); and the movable beam (3) is movably arranged on the side of the battery cell module (2) along the width direction of the box body (1).

2. The movable beam battery pack according to claim 1, characterized in that: The movable beam battery pack further comprises a fixing block (4), the fixing block (4) being fixedly arranged on the inner side of the box body (1), and the fixing block (4) being connected to the movable beam (3) via bolts.

3. The movable beam battery pack according to claim 2, characterized in that: The movable beam (3) comprises a baffle (5) and a mounting arm (6); the baffle (5) is movably arranged in the box body (1) along the width direction of the box body (1); the mounting arm (6) is arranged on the baffle (5), and the mounting arm (6) is close to one side of the fixed block (4).

4. The movable beam battery pack according to claim 3, characterized in that: The interior of the mounting arm (6) is a hollow structure, and the fixing block (4) is connected to the upper end of the mounting arm (6) via bolts.

5. The movable beam battery pack according to claim 4, characterized in that: There are multiple mounting arms (6) and multiple fixing blocks (4).

6. The movable beam battery pack according to any one of claims 3 to 5, characterized in that: The height of the baffle (5) matches the height of the battery cell module (2).

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