Battery cell module structure with movable side plates, power battery and new energy automobile

Abstract

The invention relates to the technical field of power batteries, and discloses a battery cell module structure with movable side plates, a power battery and a new energy automobile, and the structure comprises a Pack shell, a module, a wedge-shaped sliding block and an elastic body. The Pack shell is a closed cavity formed by an upper cover, a lower cover, a Pack cross beam and a Pack longitudinal beam. Each module comprises a pair of symmetrically arranged module side plates and a battery core stacking body clamped between the module side plates. A continuous cavity is formed in the Pack longitudinal beam in the length direction, and a wedge-shaped sliding block and a plurality of elastic bodies located at the two ends of the wedge-shaped sliding block are assembled in the cavity. Wedge-shaped structures matched with the cavities in shape are arranged on the outer side surfaces of the module side plates, and the wedge-shaped structures are embedded into the cavities of the Pack longitudinal beams. Through the design of the wedge-shaped sliding blocks and the elastic bodies, the module side plates and the Pack longitudinal beams form a movable nesting relation, expansion deformation of battery cells in the charging and discharging process can be effectively adapted, the safety of a battery pack is improved, and the service life of the battery pack is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of power batteries, and in particular relates to a battery cell module structure with movable side panels, a power battery, and a new energy vehicle. Background Art

[0002] With the rapid development of new energy vehicles, the safety and service life of power batteries, as core components, have drawn significant attention. Cell expansion is a pressing technical challenge in battery pack design. Cells expand during the charge and discharge cycle. Improper battery pack design can't effectively accommodate this expansion, leading to uneven stress distribution, internal structural damage, and even safety incidents.

[0003] Currently, the common battery pack structures on the market mostly use a rigid connection for the side panels of the cell modules. This structure does not provide sufficient buffer space when the cell expands. As the cell ages, the amount of cell expansion gradually increases. The rigidly connected side panels exert a significant restraining force on the cell, not only shortening its service life but also potentially causing deformation, bulging, and even posing safety risks.

[0004] Several solutions to the cell expansion problem have been proposed. For example, Chinese patent publication CN117293460B discloses a battery module comprising a cell stack, two intermediate covers, and a removable side panel assembly. The removable side panel assembly is slidably connected to the intermediate covers to form a space for accommodating the cell stack. As the cells expand, the removable side panel assembly slides with them, addressing the issue of damage to the side panels and tabs caused by cell expansion.

[0005] A Chinese patent with announcement number CN217740666U discloses a battery pack, including a box, a battery module and an elastic component. The elastic component is arranged on the longitudinal beam and is used to move the side panel relative to the longitudinal beam along the direction of cell stacking. When the expansion force of the cell stack is greater than the elastic force of the elastic component, the side panel can be pushed closer to the longitudinal beam to adapt to the expansion of the cell stack.

[0006] However, these existing solutions still have some shortcomings. First, most solutions are complex, increasing manufacturing costs and assembly difficulty. Second, while they address cell expansion, they lack an effective elastic recovery mechanism, preventing them from maintaining close contact when the cells contract. Third, existing movable side panel designs often require additional fixing structures or guides, increasing structural complexity and potential for failure. Furthermore, existing side panel movement mechanisms are often designed for a single direction, making it difficult to accommodate the expansion of the cells in different directions. Summary of the Invention

[0007] The purpose of the present invention is to solve the technical problem that the module side panels in the existing battery pack structure are rigidly connected and cannot provide sufficient space for the expansion of the battery cells, and to provide a battery cell module structure with movable side panels, a power battery and a new energy vehicle.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a battery module structure with movable side panels, comprising a pack housing, a plurality of modules, a wedge-shaped slider, and an elastic body; The Pack housing includes an upper cover, a lower cover, a Pack crossbeam, and a Pack longitudinal beam. The upper cover, the lower cover, at least two Pack crossbeams, and at least two Pack longitudinal beams constitute a closed cavity. The plurality of modules, the wedge-shaped sliders, and the elastic body are all located inside the closed cavity. Each of the modules includes a pair of symmetrically arranged module side plates and a battery cell stack clamped between the module side plates, wherein the battery cell stack is arranged above the lower cover; A continuous cavity is provided inside the Pack longitudinal beam along its length, and a wedge-shaped slider and an elastomer are installed in the cavity; a plurality of elastomers are provided, and the plurality of elastomers are respectively located at the upper and lower ends of the wedge-shaped slider; a wedge-shaped structure matching the shape of the cavity is provided on the outer surface of the module side panel, and the wedge-shaped structure of the module side panel is embedded in the cavity of the Pack longitudinal beam.

[0009] A further improvement of the present invention is that the cavity and the wedge-shaped slider of the Pack longitudinal beam are both made of aluminum profiles, and the inner wall of the cavity is adapted to the wedge-shaped slider and the elastic body; and the elastic body is made of a stamping part.

[0010] A further improvement of the present invention is that the cavity is arranged inside the Pack longitudinal beam, the wedge-shaped structure is arranged on the outer surface of the module side plate, and the wedge-shaped structure and the Pack longitudinal beam gap match.

[0011] A further improvement of the present invention is that the elastic body is located in the cavity of the Pack longitudinal beam, and two elastic bodies are provided, and the two elastic bodies are respectively located at the upper and lower ends of the wedge-shaped slider.

[0012] A further improvement of the present invention is that the battery cell stack can be fixed on the lower cover by glue or tape.

[0013] A further improvement of the present invention is that the upper cover is connected to the upper end surfaces of the Pack cross beam and the Pack longitudinal beam, and the lower cover is connected to the lower end surfaces of the Pack cross beam and the Pack longitudinal beam, together forming a closed cavity.

[0014] A further improvement of the present invention is that the wedge-shaped structure of the module side plate contacts the cavity wall of the Pack longitudinal beam to form a movable nesting relationship.

[0015] A further improvement of the present invention is that the wedge-shaped slider is embedded in the cavity of the Pack longitudinal beam, the elastic body is preassembled in the cavity of the Pack longitudinal beam, and the module side plate is connected to the Pack longitudinal beam through the wedge-shaped slider and the elastic body.

[0016] In a second aspect, the present invention further provides a power battery comprising the above-mentioned battery cell module structure.

[0017] In a third aspect, the present invention further provides a new energy vehicle comprising the above-mentioned power battery.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a battery cell module structure with movable side panels. By designing the module side panels as a movable structure, when the battery cell expands, the module side panels can move outward under the action of the expansion force, thereby leaving more expansion space for the battery cell; at the same time, the wedge-shaped slider moves outward under the action of the battery cell expansion force, compressing the elastomer, and the elastomer provides reverse compression force after being compressed, forming a dynamic balance system; compared with the module side panels with rigid connections in the prior art, the present invention replaces the rigid connection with an elastic connection, provides sufficient space for the battery cell expansion, so as to adapt to the expansion of the battery cell, thereby improving the flexibility, safety and service life of the battery pack structure.

[0019] Furthermore, the cavity and wedge-shaped slider of the Pack longitudinal beam are made of aluminum profiles. The inner wall of the cavity is adapted to the wedge-shaped slider and the elastomer. While ensuring the high structural strength of the cavity and the wedge-shaped slider, the aluminum profile significantly reduces the overall weight, improves the energy density and portability of the battery pack, and is suitable for the core demand of new energy vehicles for lightweight. The elastomer is made of stamping parts. The stamped elastomer has excellent elastic recovery ability and fatigue resistance. It can withstand repeated compression deformation for a long time, avoid clamping failure caused by material aging, and extend the life of the module.

[0020] Furthermore, the cavity is set inside the Pack longitudinal beam. The integrated design of the cavity and the Pack longitudinal beam avoids the occupation of additional installation space. The wedge-shaped structure is set on the outer surface of the module side panel. The wedge-shaped structure matches the gap of the Pack longitudinal beam, which can enhance the compactness of the overall structure and improve the space utilization of the battery pack.

[0021] The present invention also provides a power battery, which includes the above-mentioned battery cell module structure with movable side panels. The power battery adopts this battery cell module structure, by designing the module side panels as a movable structure, when the battery cell expands, the module side panels can move outward to make room for expansion, and at the same time, the wedge-shaped slider compresses the elastomer to form a dynamic balance system, replacing the rigid connection with an elastic connection, providing sufficient space for the expansion of the battery cell, being able to adapt to the expansion of the battery cell, and improving the flexibility, safety and service life of the power battery structure.

[0022] The present invention also provides a new energy vehicle comprising the aforementioned power battery. Due to the advantages of the power battery's flexible structure, safety, and long service life, the new energy vehicle employing this power battery achieves more stable battery performance during operation, reduces safety hazards caused by battery problems, and reduces subsequent maintenance costs. Furthermore, the use of aluminum profiles in the power battery's longitudinal beams reduces weight, increases the battery pack's energy density, and contributes to extending the vehicle's range. This meets the core requirements of new energy vehicles for lightweight and long range, providing passengers with a more reliable and efficient travel experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are merely schematic and are used to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the various components of the present invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of the battery module with movable side panels of the present invention; Figure 2 A top view of the internal structure of the battery cell module with movable side panels of the present invention; Figure 3 This is an exploded schematic diagram of the overall structure of the battery cell module with movable side panels of the present invention; Figure 4 This is an exploded model diagram of the overall structure of the battery module with movable side panels of the present invention.

[0025] Among them: 1. Upper cover; 2. Pack crossbeam; 3. Pack longitudinal beam; 4. Module; 41. Module side panel; 42. Cell stack; 5. Lower cover; 6. Cavity; 7. Wedge-shaped slider; 8. Elastomer; 9. Wedge-shaped structure. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein 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 invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall 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, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the inventive product is typically placed when in use. These terms are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] The present invention is described in further detail below with reference to the accompanying drawings: Example As mentioned in the background technology, there are some problems with the current battery cell module structure. For example, the side panels of the battery cell module adopt a rigid connection method, which cannot provide sufficient buffer space when the battery cell expands. As the battery cell is used for a longer time, the amount of battery cell expansion gradually increases. The rigidly connected side panel structure will exert a greater restraining force on the battery cell, which not only affects the service life of the battery cell, but may also cause the battery cell to deform, bulge, and even cause safety hazards. Therefore, it is necessary to find a new structure to solve this problem.

[0033] In order to solve the above technical problems, embodiments of the present invention provide a battery cell module structure with movable side panels, a power battery, and a new energy vehicle.

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides a battery cell module structure with movable side panels, including a Pack shell, several modules 4, a wedge-shaped slider 7, and an elastic body 8; wherein the Pack shell includes an upper cover 1, a lower cover 5, a Pack crossbeam 2, and a Pack longitudinal beam 3. The upper cover 1, the lower cover 5, at least two Pack crossbeams 2, and at least two Pack longitudinal beams 3 constitute a closed cavity, and the several modules 4, the wedge-shaped slider 7, and the elastic body 8 are all located inside the closed cavity. The battery cell module structure with movable side panels of this embodiment places the several modules 4, the wedge-shaped slider 7, and the elastic body 8 in the closed cavity formed by the Pack shell components. The movable side panel design provides sufficient space for battery cell expansion, thereby extending the service life of the battery cell.

[0035] like Figure 3 As shown, in this embodiment, each module 4 includes a pair of symmetrically arranged module side panels 41 and a cell stack 42 clamped between the module side panels 41. The cell stack 42 is arranged above the lower cover 5. Multiple single cells are stacked into the cell stack 42 in a preset arrangement. This orderly arrangement helps to optimize the current distribution and heat dissipation performance between the cells, thereby improving the overall performance of the cell module 4. The symmetrical arrangement of the module side panels 41 makes the overall module structure more stable, helps to improve the placement stability of the cell module 4 in the pack shell, and reduces the safety risks caused by structural instability. The cell stack 42 is fixed to the lower cover 5 by glue or tape, or the cell stack 42 can be directly placed on the lower cover 5 without being fixed. This design provides flexible installation options for different usage scenarios and needs. The cell stack 42 is composed of multiple single cells stacked in a preset arrangement. The single cells are separated by insulating material to prevent short circuits.

[0036] like Figure 4 As shown, in this embodiment, a continuous cavity 6 is opened inside the Pack longitudinal beam 3 along the length direction, and a wedge-shaped slider 7 and an elastic body 8 are assembled in the cavity 6. The elastic body 8 is located at the upper and lower ends of the wedge-shaped slider 7.

[0037] In this embodiment, the outer surface of the module side panel 41 is provided with a wedge-shaped structure 9 that matches the shape of the cavity 6. The wedge-shaped structure 9 of the module side panel 41 is embedded in the cavity 6 of the pack longitudinal beam 3, and the wedge-shaped structure 9 and the pack longitudinal beam 3 are spaced to match. The wedge-shaped structure 9 of the module side panel 41 contacts the wall surface of the cavity 6 of the pack longitudinal beam 3, forming a movable nesting relationship. When the battery cell expands, the module side panel 41 moves to the sides under the action of the expansion force, compressing the elastic body 8 outward, making more space for the battery cell to expand, which is equivalent to providing the battery cell with breathing space.

[0038] In this embodiment, the wedge-shaped slider 7 is embedded in the cavity 6 of the pack longitudinal beam 3, and the elastic body 8 is preassembled in the cavity 6 of the pack longitudinal beam 3. The module side plate 41 is connected to the pack longitudinal beam 3 through the wedge-shaped slider 7 and the elastic body 8. The surface of the wedge-shaped slider 7 is precision-machined, with a surface roughness Ra value of no greater than 0.8μm, ensuring smooth sliding between the inner wall of the cavity 6 and the wedge-shaped structure 9 of the module side plate 41.

[0039] In this embodiment, during the assembly of the cell module structure, the elastic body 8 is first pre-assembled at both ends of the cavity 6 of the Pack longitudinal beam 3, and then the wedge-shaped slider 7 is placed in the middle of the cavity 6. Then, the wedge-shaped structure 9 of the module side plate 41 is inserted into the cavity 6 so that it contacts the wedge-shaped slider 7. When the cell stack 42 undergoes thermal expansion, it pushes the module side plate 41 outward. The module side plate 41 pushes the wedge-shaped slider 7 to slide in the cavity 6 through the wedge-shaped structure 9. The wedge-shaped slider 7 compresses the elastic body 8, thereby absorbing the expansion force of the cell stack 42 and preventing the cell stack 42 from being deformed or damaged due to expansion.

[0040] When the cell stack 42 contracts, the elastic body 8 releases its stored elastic potential energy, pushing the wedge-shaped slider 7 back to its original position, which in turn drives the module side plates 41 inward to maintain effective clamping of the cell stack 42. This design allows the module side plates 41 to automatically adjust their position according to the thermal expansion and contraction of the cell stack 42, ensuring the stability of the cell stack 42 while preventing damage to the cells caused by fixed clamping.

[0041] The battery module structure with movable side panels in this embodiment, by providing a cavity 6 within the Pack longitudinal beam 3 and assembling a wedge-shaped slider 7 and an elastic body 8 within the cavity 6, enables the module side panels 41 to automatically adjust their position when the battery cell stack 42 expands and contracts with heat, effectively solving the problem of cell damage caused by thermal expansion and contraction in traditional battery module structures. Furthermore, the design of the wedge-shaped slider 7 and elastic body 8 imparts a certain damping property to the movement of the module side panels 41, preventing unnecessary movement of the module side panels 41 due to external vibrations and improving the stability and reliability of the battery module structure.

[0042] The present invention is further explained below with reference to a group of examples and accompanying drawings: like Figure 1 and Figure 3 As shown, the present invention provides a battery cell module structure with movable side panels, the upper cover 1 is connected to the upper end surfaces of the Pack crossbeam 2 and the Pack longitudinal beam 3, and the lower cover 5 is connected to the lower end surfaces of the Pack crossbeam 2 and the Pack longitudinal beam 3, together forming a closed cavity, and the module side panels 41, the battery cell stack 42, the wedge-shaped slider 7 and the elastomer 8 are all located inside the closed cavity.

[0043] Another example Figure 3 As shown, a wedge-shaped structure 9 is provided on the outer surface of the module side plate 41, and two wedge-shaped sliders 7 are provided. The two wedge-shaped sliders 7 are respectively located at the upper and lower ends of the wedge-shaped structure 9, and the two elastic bodies 8 are respectively located at the upper and lower ends of the wedge-shaped slider 7 and at both ends of the cavity 6.

[0044] Furthermore, the battery module structure of the present invention utilizes aluminum profiles for the Pack longitudinal beams 3 and wedge-shaped sliders 7, resulting in lightweight, high strength, and excellent heat dissipation, which contributes to improved energy density and heat dissipation performance of the battery pack. The elastomer 8 is made of stamped parts, which simplifies the manufacturing process and reduces costs. It also exhibits excellent elastic recovery and fatigue resistance, ensuring the reliability of the battery module structure during long-term use.

[0045] In summary, this embodiment provides a battery cell module structure with movable side panels. This structure not only adaptively absorbs the thermal expansion and contraction stresses of the battery cell stack 42 through the synergistic action of the wedge-shaped slider 7 and the elastic body 8, preventing damage to the battery cells due to expansion deformation or contraction loosening, but also utilizes the damping properties of the wedge-shaped structure 9 to suppress external vibration interference, ensuring stable clamping of the module side panels 41 under dynamic conditions. Furthermore, the use of materials such as aluminum profiles achieves a balance between lightweight, high strength, and good heat dissipation, while maintaining cost control and reliable performance.

[0046] In some embodiments, the present application provides a power battery, which includes: Figures 1 to 3 The cell module structure shown in .

[0047] In some embodiments, an embodiment of the present application provides a new energy vehicle, which includes the power battery as described above.

[0048] In summary, the present invention provides a battery cell module structure with removable side panels. Through the synergistic action of the wedge-shaped slider 7 and the elastic body 8, the linear expansion stress of the battery cell stack 42 is dynamically compensated, achieving bidirectional self-adjustment of the module side panels 41, thereby preventing the battery cells from being squeezed and deformed or loosened due to fixed constraints. The present invention uses elastic connections instead of the rigid connections used in the prior art, providing sufficient space for battery cell expansion to accommodate this expansion, thereby improving the flexibility, safety, and service life of the battery pack structure.

[0049] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of the present teachings should be determined not with reference to the foregoing description, but rather with reference to the preceding claims, along with the full scope of equivalents to which such claims are entitled. For the purpose of completeness, all articles and references, including the disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the preceding claims is not a disclaimer of such subject matter, nor should it be interpreted that the applicants did not consider such subject matter to be part of the disclosed inventive subject matter.

[0050] The above content is a further detailed description of the present invention, and it cannot be considered that the specific implementation methods of the present invention are limited to these. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection of the present invention determined by the submitted claims.

Claims

1. A battery module structure with movable side panels, characterized in that: It includes a Pack housing, a plurality of modules (4), a wedge-shaped slider (7) and an elastic body (8); The Pack shell comprises an upper cover (1), a lower cover (5), a Pack crossbeam (2) and a Pack longitudinal beam (3); the upper cover (1), the lower cover (5), at least two Pack crossbeams (2) and at least two Pack longitudinal beams (3) constitute a closed cavity; the plurality of modules (4), the wedge-shaped slider (7) and the elastic body (8) are all located inside the closed cavity; Each of the modules (4) comprises a pair of symmetrically arranged module side plates (41) and a cell stack (42) clamped between the module side plates (41), wherein the cell stack (42) is arranged above the lower cover (5); A continuous cavity (6) is provided inside the Pack longitudinal beam (3) along the longitudinal direction, and a wedge-shaped slider (7) and an elastic body (8) are installed in the cavity (6); a plurality of elastic bodies (8) are provided, and the plurality of elastic bodies (8) are respectively located at the upper and lower ends of the wedge-shaped slider (7); a wedge-shaped structure (9) matching the shape of the cavity (6) is provided on the outer surface of the module side plate (41), and the wedge-shaped structure (9) of the module side plate (41) is embedded in the cavity (6) of the Pack longitudinal beam (3).

2. The battery module structure with movable side panels according to claim 1, characterized in that: The cavity (6) and the wedge-shaped slider (7) of the Pack longitudinal beam (3) are both made of aluminum profiles, and the inner wall of the cavity (6) is adapted to the wedge-shaped slider (7) and the elastic body (8); the elastic body (8) is made of a stamping part.

3. The battery module structure with movable side panels according to claim 1, characterized in that: The mold cavity (6) is arranged inside the Pack longitudinal beam (3), the wedge-shaped structure (9) is arranged on the outer surface of the module side plate (41), and the wedge-shaped structure (9) and the Pack longitudinal beam (3) are space-matched.

4. The battery module structure with movable side panels according to claim 1, characterized in that: The elastic body (8) is located in the cavity (6) of the Pack longitudinal beam (3). Two elastic bodies (8) are provided, and the two elastic bodies (8) are respectively located at the upper and lower ends of the wedge-shaped slider (7).

5. The battery module structure with movable side panels according to claim 1, characterized in that: The battery cell stack (42) can be fixed above the lower cover (5) by glue or tape.

6. The battery module structure with movable side panels according to claim 1, characterized in that: The upper cover (1) is connected to the upper end surfaces of the Pack crossbeam (2) and the Pack longitudinal beam (3), and the lower cover (5) is connected to the lower end surfaces of the Pack crossbeam (2) and the Pack longitudinal beam (3), together forming a closed cavity.

7. The battery module structure with movable side panels according to claim 1, characterized in that: The wedge-shaped structure (9) of the module side plate (41) contacts the wall surface of the cavity (6) of the Pack longitudinal beam (3), forming a movable nesting relationship.

8. The battery module structure with movable side panels according to claim 1, characterized in that: The wedge-shaped slider (7) is embedded in the cavity (6) of the Pack longitudinal beam (3), the elastic body (8) is pre-assembled in the cavity (6) of the Pack longitudinal beam (3), and the module side plate (41) is connected to the Pack longitudinal beam (3) through the wedge-shaped slider (7) and the elastic body (8).

9. A power battery, characterized in that: Comprising the battery cell module structure as claimed in any one of claims 1 to 8.

10. A new energy vehicle, characterized in that: Including the power battery as claimed in claim 9.

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