A battery pack tray structure

Abstract

The utility model discloses a kind of battery pack tray structure, including lower tray body, two side support rails of fixedly arranged in the bottom of lower tray body, two The side support rails are symmetrically distributed below the horizontal center line of lower tray body, two The side support rails are commonly used for supporting battery pack, multiple sets of limiting fixing assemblies are provided on the side support rail, the limiting fixing assembly is used to install battery pack on the side support rail fixedly. In the utility model, by clamping the two end portions of the battery pack between the two side blocks of the same limiting fixing assembly, the preliminary positioning of the battery pack is realized at this time. By rotating the L-shaped pressing block towards the direction of the battery pack, the L-shaped pressing block is brought into abutting contact with the end portion of the battery pack. At this time, the positions of the through hole one, the through hole two and the screw hole correspond to each other. Then, the screw is used to realize the purpose of pressing and fixing the battery pack by the L-shaped pressing block. This method can conveniently and accurately lock the battery pack, save time and improve the installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle parts technology, specifically a battery pack tray structure. Background Technology

[0002] Electric vehicles are vehicles powered by rechargeable battery packs. They are favored for their affordability, convenience, and environmental friendliness. With the booming development of new energy vehicles, the performance and safety of the battery pack, as the core power source, are of paramount importance. The battery tray, as a key component that supports the battery modules and ensures the stable operation of the battery system, plays a crucial role.

[0003] The battery pack is fixed to the battery tray with bolts. The through holes at both ends of the battery pack need to be aligned with the screw holes on the tray. There is no initial positioning function, which directly leads to the inconvenience of hole alignment. Operators need to repeatedly adjust the position of the battery pack to align with the screw holes. This manual adjustment increases the labor intensity and labor costs. If the bolt is found to be misaligned after it is screwed in (such as a 5mm misalignment between the through hole and the screw hole), the bolt must be removed in reverse, the battery pack must be manually pried to adjust its position, and the bolt must be screwed in again after realignment. The installation time of a single battery pack is greatly increased. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a battery pack tray structure that solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a battery pack tray structure, comprising a lower tray body and two side support rails fixedly disposed at the bottom of the lower tray body. The two side support rails are symmetrically distributed along the transverse centerline of the lower tray body. The two side support rails are used together to support the battery pack. Multiple sets of limiting and fixing components are provided on the side support rails. The limiting and fixing components are used to fix the battery pack on the side support rails.

[0008] Preferably, the limiting and fixing assembly includes two U-shaped frames fixedly connected to the side support rail and a side stop block fixed to the end of the U-shaped frame. An L-shaped pressure block for pressing the end of the battery pack is rotatably arranged inside the U-shaped frame via a rotating shaft.

[0009] Preferably, the L-shaped pressure block, the battery pack, and the side support rail are fixedly installed together by bolts. The side support rail has multiple screw holes. Both ends of the battery pack have through holes two. The L-shaped pressure block has a through hole one. The threaded end of the bolt passes through through hole one and through hole two in sequence and is threaded into the screw hole.

[0010] Preferably, a central support plate is fixedly connected inside the lower tray body. The central support plate is located between two side support rails, and the top of the central support plate is flush with the top of the side support rails.

[0011] Preferably, the left and right inner walls of the lower tray body are fixedly connected with a first wave-shaped collapsible beam, and the front and rear inner walls of the lower tray body are fixedly connected with a second wave-shaped collapsible beam.

[0012] Preferably, there is a gap between the second corrugated collapsible beam and the side support rail, which can be used to ensure that the L-shaped pressure block rotates smoothly.

[0013] (III) Beneficial Effects

[0014] This utility model provides a battery pack tray structure, which has the following advantages:

[0015] 1. In this utility model, the battery pack is initially positioned by engaging the two ends of the battery pack between the two side blocks of the same limiting and fixing component. By rotating the L-shaped pressure block towards the battery pack, the L-shaped pressure block comes into contact with the end of the battery pack. At this time, the positions of through hole one, through hole two, and screw hole are corresponding. Then, by passing the bolt through through hole one, through hole two, and into the screw hole, the L-shaped pressure block is used to press and fix the battery pack. This method can conveniently and accurately lock the battery pack, save operation time, and improve installation efficiency.

[0016] 2. In this utility model, the two side support rails support the two ends of the battery pack, and the central support plate supports the middle part of the battery pack, so as to provide stable support for multiple battery packs. Attached Figure Description

[0017] Figure 1 This is a front perspective three-dimensional structural view of a battery pack tray structure proposed in this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of a battery pack tray structure proposed in this utility model, showing the battery pack in its installation state.

[0019] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0020] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0021] Figure 5 This is a structural diagram of a battery pack tray structure proposed in this utility model.

[0022] In the diagram: 1. Lower tray body; 2. Side support rail; 201. Screw hole; 3. U-shaped frame; 4. Side stop block; 5. L-shaped pressure block; 501. Through hole one; 6. Bolt; 7. First wave-shaped collapsible beam; 8. Second wave-shaped collapsible beam; 9. Central support plate; 10. Battery pack; 1001. Through hole two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a battery pack tray structure, including a lower tray body 1 and two side support rails 2 fixedly disposed at the bottom of the lower tray body 1. The two side support rails 2 are symmetrically distributed along the transverse center line of the lower tray body 1. The two side support rails 2 are used together to support the battery pack 10. Multiple sets of limiting and fixing components are provided on the side support rails 2. The limiting and fixing components are used to fix the battery pack 10 on the side support rails 2.

[0025] The above solution achieves the initial positioning of the battery pack 10 through the limiting and fixing components, that is, to ensure that each hole can be accurately aligned, which facilitates subsequent locking, that is, to achieve "zero deviation of hole alignment", and the bolt 6 can be directly and smoothly inserted without any adjustment.

[0026] Reference Figure 3 and Figure 4 The limiting and fixing assembly includes two U-shaped frames 3 fixedly connected to the side support rail 2, and a side stop block 4 fixed to the end of the U-shaped frame 3. An L-shaped pressure block 5 for pressing the end of the battery pack 10 is rotatably arranged inside the U-shaped frame 3 via a rotating shaft.

[0027] Reference Figures 3-5 The L-shaped pressure block 5, the battery pack 10 and the side support rail 2 are fixedly installed by bolts 6. The side support rail 2 has multiple screw holes 201. Both ends of the battery pack 10 have through holes 1001. The L-shaped pressure block 5 has through holes 501. The threaded end of the bolt 6 passes through through holes 501 and through holes 1001 in sequence and is threaded into the screw holes 201.

[0028] The installation method of battery pack 10 is described in detail below. First, the two ends of battery pack 10 are snapped between the two side blocks 4 of the same limiting and fixing component, which achieves the initial positioning of battery pack 10. By rotating the L-shaped pressure block 5 in the direction of battery pack 10, the L-shaped pressure block 5 comes into contact with the end of battery pack 10. At this time, the positions of through hole 1 501, through hole 2 1001, and screw hole 201 are corresponding. Then, the threaded end of bolt 6 is passed through through hole 1 501 and through hole 2 1001 until the thread is inserted into screw hole 201, which achieves the purpose of pressing and fixing battery pack 10 with L-shaped pressure block 5. This method can conveniently and accurately install battery pack 10. That is, L-shaped pressure block 5 firmly achieves the pressing work of battery pack 10. The whole operation saves operation time and improves installation efficiency.

[0029] It should be noted that when the L-shaped pressure block 5 presses the battery pack 10, the through hole 501 of the L-shaped pressure block 5 is connected to and corresponds to the through hole 1001 of the battery pack 10.

[0030] As the core energy carrier of new energy vehicles, the battery pack 10 is essentially an "energy unit formed by the systematic integration of individual cells"—the energy density and voltage level of a single individual cell (such as cylindrical cells, square cells, and pouch cells) cannot meet the power requirements of the entire vehicle. It is necessary to form a battery pack 10 with high safety and high stability through series and parallel combination, structural protection, thermal management and electronic control system collaborative design.

[0031] Reference Figure 1 and Figure 2 The lower tray body 1 is fixedly connected to a central support plate 9, which is located between two side support rails 2. The top of the central support plate 9 is flush with the top of the side support rails 2.

[0032] Reference Figure 1 and Figure 2 The left and right inner walls of the lower pallet body 1 are fixedly connected with a first wave-shaped collapsible beam 7, and the front and rear inner walls of the lower pallet body 1 are fixedly connected with a second wave-shaped collapsible beam 8.

[0033] During vehicle operation, vehicles may encounter "side collisions" (such as being rear-ended or scraped from the left or right) or "front-to-back collisions" (such as rear-end collisions during sudden braking or frontal impacts). The core value of the wave-shaped collapsible beam lies in converting the impact force into structural deformation energy, preventing the impact force from being directly transmitted to the internal battery pack 10. This is a key advantage that traditional straight beam structures cannot achieve.

[0034] Reference Figure 3 and Figure 4 There is a gap between the second wave-shaped collapsible beam 8 and the side support rail 2, which can be used to ensure that the L-shaped pressure block 5 rotates smoothly.

[0035] Before installing the battery pack 10, rotate the L-shaped pressure block 5 into the gap between the second wave-shaped collapsible beam 8 and the side support rail 2 to provide reserved space for installing the battery pack 10. Then, place the battery pack 10 on the two side support rails 2, with the battery pack 10 located between the side blocks 4. At this time, rotate the L-shaped pressure block 5 in the opposite direction to press the end of the battery pack 10.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A battery pack tray structure, characterized in that: It includes a lower tray body (1) and two side support rails (2) fixedly installed at the bottom of the lower tray body (1). The two side support rails (2) are symmetrically distributed along the transverse center line of the lower tray body (1). The two side support rails (2) are used together to support the battery pack (10). Multiple sets of limiting and fixing components are provided on the side support rails (2). The limiting and fixing components are used to fix the battery pack (10) on the side support rails (2).

2. The battery pack tray structure according to claim 1, characterized in that: The limiting and fixing assembly includes two U-shaped frames (3) fixedly connected to the side support rail (2) and a side stop block (4) fixed to the end of the U-shaped frame (3). The U-shaped frame (3) is provided with an L-shaped pressure block (5) for pressing the end of the battery pack (10) through a rotating shaft.

3. The battery pack tray structure according to claim 2, characterized in that: The L-shaped pressure block (5), the battery pack (10) and the side support rail (2) are fixedly installed by bolts (6). The side support rail (2) has multiple screw holes (201). Both ends of the battery pack (10) have through holes two (1001). The L-shaped pressure block (5) has through holes one (501). The threaded end of the bolt (6) passes through through holes one (501) and through holes two (1001) in sequence and is threaded into the screw hole (201).

4. The battery pack tray structure according to claim 1, characterized in that: The lower tray body (1) is fixedly connected to a central support plate (9), which is located between two side support rails (2). The top of the central support plate (9) is flush with the top of the side support rails (2).

5. The battery pack tray structure according to claim 1, characterized in that: The left and right inner walls of the lower tray body (1) are fixedly connected with a first wave-shaped collapsible beam (7), and the front and rear inner walls of the lower tray body (1) are fixedly connected with a second wave-shaped collapsible beam (8).

6. A battery pack tray structure according to claim 5, characterized in that: There is a gap between the second wave-shaped collapsible beam (8) and the side support rail (2), which can be used to ensure that the L-shaped pressure block (5) rotates smoothly.

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