Battery tray, battery pack, and vehicle

Abstract

The present disclosure relates to a battery tray, a battery pack and a vehicle, the battery tray comprising: a tray body; a mounting beam arranged at an outer side of the tray body and connected to the tray body; and a connecting frame connecting the tray body and the mounting beam. Through the above technical solution, the battery tray is beneficial to improve the structural strength of the mounting beam, avoid fatigue fracture of the mounting beam, and thus improve the safety of the battery pack.

Description

Technical Field

[0001] This disclosure relates to the field of battery technology, and more particularly to a battery tray, a battery pack, and a vehicle. Background Technology

[0002] In related technologies, the battery pack is mounted to the vehicle body via a cantilever beam mounted on a battery tray. However, the cantilever beam is a long-moment structure, which is prone to fatigue fracture under long-term mechanical vibration, thus affecting the safety of the battery pack. Utility Model Content

[0003] The purpose of this disclosure is to provide a battery tray, a battery pack, and a vehicle, wherein the battery tray helps to improve the structural strength of the mounting beam, avoid fatigue fracture of the mounting beam, and thus improve the safety of the battery pack.

[0004] According to an embodiment of the present disclosure, a battery tray is provided, the battery tray comprising: a tray body; a mounting beam disposed on the outside of the tray body and connected to the tray body; and a connecting frame connecting the tray body and the mounting beam.

[0005] Through the above technical solution, in the battery tray provided in this disclosure, the connecting frame connects the tray body and the mounting beam. Thus, the mounting beam can not only be directly connected to the tray body, but also further connected to the tray body via the connecting frame, which helps to enhance the structural strength of the mounting beam. Furthermore, the connection point between the connecting frame and the mounting beam is located on the side opposite to the connection point between the tray body and the mounting beam. This allows part of the load borne by the mounting beam to be transferred to the tray body through the connecting frame, preventing fatigue fracture of the mounting beam due to stress concentration. In summary, this battery tray helps to improve the structural strength of the mounting beam, avoid fatigue fracture of the mounting beam, and thus improve the safety of the battery pack.

[0006] In some possible implementations, the connecting frame includes a main body and connecting flanges. The main body forms a receiving space between itself, the pallet body, and the mounting beam. The connecting flange is connected to the main body and folds off from it. The connecting flange is connected to the mounting beam, and the main body is connected to the pallet body. Alternatively, the connecting flange is connected to each of the two ends of the main body, and the two connecting flanges are respectively connected to the mounting beam and the pallet body. In this implementation, the connecting flanges increase the contact area between the connecting frame and the mounting beam or pallet body, thereby increasing the reliability of the connection between the connecting frame and the mounting beam or pallet body.

[0007] In some possible implementations, the pallet body includes a pallet frame and a support beam. The support beam and the mounting beam are respectively connected to the pallet frame, and the support beam and the mounting beam are arranged opposite to each other in a first direction. The main body and the connecting flange are L-shaped, with the main body connected to the support beam and the connecting flange connected to the mounting beam. This creates a rectangular accommodating space, which is beneficial for the arrangement of wiring harnesses or heat exchange pipes within the accommodating space.

[0008] In some possible implementations, the two ends of the main body are respectively connected to the connecting flanges. The main body includes at least one plate segment arranged at an angle to the connecting flanges, and the two connecting flanges are respectively connected to the pallet body and the mounting beam. In this way, the connecting frame can be connected to the pallet body and the mounting beam respectively via the two connecting flanges, without being limited by the shape of the pallet body or the mounting beam. That is, the connecting frame can be applied to different types of pallet bodies and mounting beams, thus having a wide range of applications.

[0009] In some possible implementations, the main body portion is provided with through holes for the insertion of restraint cable ties.

[0010] In some possible implementations, the connecting frame further includes a limiting frame connected to the main body and forming a constraint space. This constraint space can be used to restrain wire harnesses to prevent them from shifting.

[0011] In some possible implementations, the limiting frame abuts against the tray body and is configured to deform and absorb energy under external forces. This allows the limiting frame to absorb at least a portion of the energy from external forces, thus protecting the tray body.

[0012] In some possible implementations, the limiting frame includes a limiting body that is U-shaped, with its opening facing the tray body. This prevents the limiting frame from tipping over to one side, ensuring its stability.

[0013] In some possible implementations, the limiting frame further includes constraint flanges. The constraint flanges are respectively connected to two ends of the opening side of the limiting body. The constraint flanges fold away from the tray body from the ends of the limiting body, and a gap exists between the two constraint flanges. This gap communicates with the internal space of the limiting body, and the gap gradually decreases in a first direction away from the tray body. In this way, the constraint flanges can confine the opening side of the limiting body, thereby reducing the risk of wiring harnesses or heat exchange pipes escaping the constraint space through the opening side.

[0014] In some possible implementations, an arc-shaped transition portion is provided between the limiting body and the constraint flange. This allows for a smoother transition between the limiting body and the constraint flange, preventing the connecting frame from breaking at the connection point and also preventing scratches to the pallet body caused by an overly sharp connection point.

[0015] In some possible implementations, the limiting body forms a constriction portion that is recessed from the surface of the limiting body toward the constraint space to constrict the constraint space. This constriction portion allows both segments of the limiting body to have a wave-like structure, thereby enhancing the energy absorption effect of the limiting frame.

[0016] In some possible implementations, the connecting bracket extends along the extension direction of the mounting beam, and the number of connecting brackets is equal to the number of mounting beams and is arranged in a one-to-one correspondence; or, the battery tray includes a plurality of connecting brackets, which are spaced apart along the extension direction of the mounting beam.

[0017] Based on the above solution, this disclosure also provides a battery pack, which includes the battery tray mentioned above.

[0018] Based on the above solution, this disclosure also provides a vehicle that includes the above-mentioned battery pack.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Other features and advantages of this disclosure will be described in detail in the subsequent detailed description section. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure: Figure 1 This is a perspective view of a battery pack provided in an exemplary embodiment of this disclosure; Figure 2 This is a cross-sectional view of a battery pack provided in an exemplary embodiment of this disclosure; Figure 3 yes Figure 2 Enlarged view of point A in the image; Figure 4 This is a partial cross-sectional view of a battery pack provided in yet another exemplary embodiment of this disclosure, showing the limiting frame; Figure 5 This is a perspective view of the connecting frame provided in the first exemplary embodiment of this disclosure; Figure 6 This is a perspective view of the connecting frame provided in the second exemplary embodiment of this disclosure; Figure 7 This is a perspective view of the connecting frame provided in the third exemplary embodiment of this disclosure; Figure 8 This is a perspective view of the connector provided in the fourth exemplary embodiment of this disclosure; Figure 9 This is a perspective view of the connector provided in the fifth exemplary embodiment of this disclosure; Figure 10 This is a cross-sectional view of the connecting frame provided in the sixth exemplary embodiment of this disclosure, showing the connection between the connecting frame and the tray body and the mounting beam; Figure 11 This is a cross-sectional view of the connecting frame provided in the seventh exemplary embodiment of this disclosure, showing the connection between the connecting frame and the tray body and the mounting beam.

[0021] Explanation of reference numerals in the attached figures 11. Pallet body; 111. Pallet frame; 112. Support beam; 12. Mounting beam; 2. Connecting frame; 21. Main body; 211. Through hole; 22. Connecting flange; 23. Limiting frame; 231. Limiting body; 2311. Restriction part; 232. Constraint flange; 233. Arc-shaped transition part; 24. First connecting hole; 25. Second connecting hole; 3. Accommodation space; 4. Fastener; 5. Constraint space; 6. Gap. Detailed Implementation

[0022] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0023] In this disclosure, unless otherwise stated, directional terms such as "first direction" refer to the direction indicated by L1 in the accompanying drawings. Furthermore, terms such as "first" and "second" used in this disclosure are for distinguishing one element from another and do not have sequential or material significance. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0024] According to embodiments of this disclosure, a battery tray is provided, with reference to... Figures 1 to 4 as well as Figure 10 and Figure 11 As shown, the battery tray includes: a tray body 11; a mounting beam 12, which is arranged on the outside of the tray body 11 and connected to the tray body 11; and a connecting frame 2, which connects the tray body 11 and the mounting beam 12.

[0025] Through the above technical solution, in the battery tray provided in this disclosure, the connecting frame 2 connects the tray body 11 and the mounting beam 12. Thus, the mounting beam 12 can not only be directly connected to the tray body 11, but also further connected to the tray body 11 via the connecting frame 2, which helps to enhance the structural strength of the mounting beam 12. Furthermore, the connection point between the connecting frame 2 and the mounting beam 12 is located on the side opposite to the connection point between the tray body 11 and the mounting beam 12. This allows part of the load borne by the mounting beam 12 to be transferred to the tray body 11 through the connecting frame 2, preventing fatigue fracture of the mounting beam 12 due to stress concentration. In summary, this battery tray helps to improve the structural strength of the mounting beam 12, prevents fatigue fracture of the mounting beam 12, and thus improves the safety of the battery pack.

[0026] The “accommodation space 3” can be used to accommodate the wiring harness or heat exchange pipes of the battery pack. This facilitates the arrangement of the wiring harness or heat exchange pipes and eliminates the need for additional constraint structures to restrain the wiring harness or heat exchange pipes, which helps to simplify the design of the battery pack.

[0027] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figures 3 to 11 As shown, the connecting frame 2 includes a main body 21 and a connecting flange 22. A receiving space 3 is formed between the main body 21, the pallet body 11, and the mounting beam 12. The connecting flange 22 is connected to the main body 21 and folds off from it. The connecting flange 22 is connected to the mounting beam 12, and the main body 21 is connected to the pallet body 11. Alternatively, connecting flanges 22 are connected to both ends of the main body 21, and the two connecting flanges 22 are respectively connected to the mounting beam 12 and the pallet body 11. The connecting flange 22 facilitates the connection of the connecting frame 2 to the mounting beam 12 or the pallet body 11, increasing the contact area between the connecting frame 2 and the mounting beam 12 or the pallet body 11, thereby increasing the reliability of the connection between the connecting frame 2 and the mounting beam 12 or the pallet body 11.

[0028] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 3 and Figure 4As shown, the pallet body 11 includes a pallet frame 111 and a support beam 112. The support beam 112 and the mounting beam 12 are respectively connected to the pallet frame 111, and the support beam 112 and the mounting beam 12 are arranged opposite to each other in a first direction. The main body 21 and the connecting flange 22 are L-shaped. The main body 21 is connected to the support beam 112, and the connecting flange 22 is connected to the mounting beam 12. The design of the support beam 112 allows the connecting frame 2 to directly fit against the support beam 112 through the main body 21, eliminating the need for an additional connecting flange 22 for connection with the pallet body 11. This simplifies the number of connecting flanges 22 and reduces the risk of breakage of the connecting frame 2 at the bend between the main body 21 and the connecting flange 22.

[0029] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 3 and Figure 4 As shown, the connecting flange 22 and the main body 21 are respectively connected to the mounting beam 12 and the support beam 112 by their respective fasteners 4. This allows for the separate fabrication of the connecting frame 2, reducing processing difficulty. Furthermore, the fasteners 4 facilitate the assembly and disassembly of the connecting frame 2. The battery tray includes a first fastener and a second fastener. The connecting flange 22 and the main body 21 are respectively provided with a first connecting hole 24 and a second connecting hole 25. The mounting beam 12 and the support beam 112 are respectively provided with a first mounting hole and a second mounting hole. The first fastener passes through the first connecting hole 24 and the first mounting hole, and the second fastener passes through the second connecting hole 25 and the second mounting hole. This enables the connection between the connecting flange 22 and the mounting beam 12, and the connection between the main body 21 and the support beam 112. In other embodiments, the connection between the connecting flange 22 and the mounting beam 12, and the connection between the main body 21 and the support beam 112, can also be achieved by welding or other methods. This disclosure does not impose specific limitations on this.

[0030] In the battery tray provided in this disclosure, as yet another exemplary embodiment, reference is made to... Figures 10 to 11 As shown, the two ends of the main body 21 are respectively connected to connecting flanges 22. The main body 21 includes at least one plate, which is arranged at an angle to the connecting flanges 22. The two connecting flanges 22 are respectively connected to the pallet body 11 and the mounting beam 12. In this way, the connecting frame 2 can be connected to the pallet body 11 and the mounting beam 12 respectively through the two connecting flanges 22, without being limited by the shape of the pallet body 11 or the mounting beam 12. That is, the connecting frame 2 can be applied to different types of pallet bodies 11 and mounting beams 12, and has a wide range of applications.

[0031] The main body 21 can be constructed in any suitable manner. As an exemplary embodiment, refer to Figure 10As shown, the main body 21 may include a plate that, together with the pallet body 11 and the mounting beam 12, forms a triangular-section receiving space 3. This further enhances the stability of the overall structure formed by the connecting frame 2, the pallet body 11, and the mounting beam 12. As another exemplary embodiment, refer to... Figure 11 As shown, the main body 21 may include two plate sections, each with a connecting flange 22 at one end facing away from the other. This allows the main body 21, together with the tray body 11 and the mounting beam 12, to form a quadrilateral-shaped accommodating space 3. The length and arrangement of the two plate sections can be adjusted according to actual needs, thereby changing the cross-section of the accommodating space 3 to meet the arrangement requirements of wiring harnesses or heat exchange pipes. In other embodiments, the main body 21 may also include other suitable numbers of plates; this disclosure does not impose specific limitations on this.

[0032] In the battery tray provided in this disclosure, as an exemplary embodiment, the two connecting flanges 22 are respectively connected to the tray body 11 and the mounting beam 12 by their respective fasteners 4. The battery tray includes a third fastener and a fourth fastener. The two connecting flanges 22 are respectively provided with a third connecting hole and a fourth connecting hole. The mounting beam 12 and the tray body 11 are respectively provided with a third mounting hole and a fourth mounting hole. The third fastener passes through the third connecting hole and the third mounting hole, and the fourth fastener passes through the fourth connecting hole and the fourth mounting hole. Thus, the connection between the mounting beam 12 and the tray body 11 and the corresponding connecting flanges 22 can be achieved. In other embodiments, the connection between the mounting beam 12 and the tray body 11 and the corresponding connecting flanges 22 can also be achieved by welding or other methods; this disclosure does not impose specific limitations on this.

[0033] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 6 As shown, the main body 21 is provided with a through hole 211 for the cable ties to pass through. In this way, the cable ties can prevent the wiring harness or heat exchange pipes from moving around, which is beneficial to the stable operation of the electrical connection or heat exchange system, thereby improving the reliability of the battery pack.

[0034] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 4 as well as Figures 7 to 9 As shown, the connecting frame 2 also includes a limiting frame 23, which is connected to the main body 21 and forms a constraint space 5. That is, the limiting frame 23 is located between the main body 21 and the tray body 11 to provide support for the connecting frame 2 when it is subjected to external pressure, thereby improving the structural strength of the connecting frame 2. Furthermore, the constraint space 5 can be used to constrain wiring harnesses or heat exchange pipes, thereby preventing movement of the wiring harnesses or heat exchange pipes.

[0035] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 4 as well as Figures 7 to 9 As shown, the limiting frame 23 abuts against the tray body 11 and is configured to deform and absorb energy under external force. Thus, when an external force forces the connecting frame 2 to move towards the tray body 11, the limiting frame 23 deforms and absorbs energy under that force. In this way, the limiting frame 23 can absorb at least a portion of the energy of the external force through deformation, thereby mitigating or even preventing damage to the tray body 11. This improves the safety of the tray body 11 and, consequently, the safety of the battery pack.

[0036] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 4 as well as Figures 7 to 9 As shown, the limiting frame 23 includes a limiting body 231, which is U-shaped with its opening facing the tray body 11. The limiting body 231 may include two symmetrically arranged sub-frames. When the limiting frame 23 deforms under external force, the two sub-frames can simultaneously abut against the tray body 11 and the connecting frame 2, further enhancing the structural strength of the connecting frame 2. Simultaneously, the two sub-frames prevent the limiting frame 23 from tipping over to one side, ensuring its stability and reliability. Furthermore, the U-shaped limiting body 231 with its opening facing the tray body 11 allows it to simultaneously abut against the tray body 11 at its two ends located on the opening side. This allows the constraint space 5 to be completely surrounded by the tray body 11 and the limiting frame 23, forming a closed space. This prevents wire harnesses or heat exchange pipes located in the constraint space 5 from detaching from it, thus improving the stability of the wire harnesses or heat exchange pipes.

[0037] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 8 and Figure 9As shown, the limiting frame 23 also includes constraint flanges 232. The two ends of the opening side of the limiting body 231 are respectively connected to constraint flanges 232. The constraint flanges 232 fold away from the end of the limiting body 231 away from the tray body 11, and there is a gap 6 between the two constraint flanges 232. The gap 6 communicates with the internal space of the limiting body, and the gap 6 gradually decreases away from the tray body 11 in the first direction. In this way, the constraint flanges 232 can restrict the opening side of the limiting body 231, thereby reducing the risk of wire harnesses or heat exchange pipes escaping from the constraint space 5 through the opening side. Specifically, the distance between the two constraint flanges 232 in the first direction gradually decreases away from the tray body 11; that is, the distance between the two constraint flanges 232 on the side closer to the tray body 11 (referred to as the first side) in the first direction is greater than the distance between the two constraint flanges on the side away from the tray body 11 (referred to as the second side) in the first direction. This allows wire harnesses or heat exchange pipes to enter the aforementioned constraint space 5 via the wider first side of the gap 6, and to be confined within the constraint space 5 via the narrower second side of the gap 6.

[0038] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 8 and Figure 9 As shown, an arc-shaped transition portion 233 is provided between the limiting body 231 and the constraint flange 232. This allows for a smoother transition between the limiting body 231 and the constraint flange 232, preventing the connecting frame 2 from breaking at the connection point between the limiting body 231 and the constraint flange 232, and also preventing the problem of the pallet body 11 being scratched due to the excessively sharp connection point between the limiting body 231 and the constraint flange 232.

[0039] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 9 As shown, the limiting body 231 forms a constriction portion 2311, which is recessed from the surface of the limiting body 231 toward the constraint space 5 to constrict the constraint space 5. In this way, the constriction portion 2311 enables both of the two frames of the limiting body 231 to form a wave-shaped structure, thereby enhancing the energy absorption effect of the limiting frame 23.

[0040] In the battery tray provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 1As shown, the connecting frame 2 extends along the extension direction of the mounting beam 12, and the number of connecting frames 2 is equal to the number of mounting beams 12 and they are arranged in a one-to-one correspondence. This allows the connecting frames 2 to reinforce the mounting beam 12 along its entire extension path, ensuring the structural strength of the mounting beam 12. Alternatively, the battery tray includes multiple connecting frames 2, which are spaced apart along the extension direction of the mounting beam 12. This reduces the weight of the battery tray and facilitates lightweight design of the battery pack. The number and position of the connecting frames 2 can be rationally designed according to actual needs, and this disclosure does not impose specific limitations in this regard.

[0041] Based on the above-described solutions, this disclosure also provides a battery pack, which includes the aforementioned battery tray. Therefore, this battery pack possesses all the aforementioned beneficial effects, which will not be elaborated upon further here.

[0042] Based on the above-described solution, this disclosure also provides a vehicle that includes the aforementioned battery pack. Therefore, this vehicle possesses all the aforementioned beneficial effects, which will not be elaborated upon further herein.

[0043] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0044] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A battery tray, characterized in that, The battery tray includes: Pallet body; Mounting beams, the mounting beams being arranged on the outside of the pallet body and connected to the pallet body; and A connecting frame that connects the tray body and the mounting beam.

2. The battery tray according to claim 1, characterized in that, The connecting frame includes a main body and a connecting flange. The main body forms a receiving space between itself, the pallet body, and the mounting beam. The connecting flange is connected to the main body and folds off from it. The connecting flange is connected to the mounting beam, and the main body is connected to the pallet body; or, the two ends of the main body are respectively connected to the connecting flange, and the two connecting flanges are respectively connected to the mounting beam and the pallet body.

3. The battery tray according to claim 2, characterized in that, The pallet body includes a pallet frame and a support beam. The support beam and the mounting beam are respectively connected to the pallet frame, and the support beam and the mounting beam are arranged opposite to each other in a first direction. The main body and the connecting flange are L-shaped. The main body is connected to the support beam, and the connecting flange is connected to the mounting beam.

4. The battery tray according to claim 2, characterized in that, The main body is connected to the connecting flanges at both ends. The main body includes at least one plate, which is arranged at an angle to the connecting flanges. The two connecting flanges are respectively connected to the pallet body and the mounting beam.

5. The battery tray according to any one of claims 2-4, characterized in that, The main body is provided with through holes for cable ties to be threaded through.

6. The battery tray according to any one of claims 2-4, characterized in that, The connecting frame also includes a limiting frame, which is connected to the main body and forms a constrained space.

7. The battery tray according to claim 6, characterized in that, The limiting frame abuts against the tray body and is configured to deform and absorb energy under external force.

8. The battery tray according to claim 6, characterized in that, The limiting frame includes a limiting body, which is U-shaped, with its opening facing the tray body.

9. The battery tray according to claim 8, characterized in that, The limiting frame also includes a constraint flange. The two ends of the opening side of the limiting body are respectively connected to the constraint flange. The constraint flange folds away from the end of the limiting body away from the tray body, and there is a gap between the two constraint flanges. The gap communicates with the internal space of the limiting body, and the gap gradually decreases away from the tray body in a first direction.

10. The battery tray according to claim 9, characterized in that, An arc-shaped transition section is provided between the limiting body and the constraint flange.

11. The battery tray according to claim 8, characterized in that, The limiting body forms a constriction portion, which is recessed from the surface of the limiting body toward the constraint space to constrict the constraint space.

12. The battery tray according to claim 1, characterized in that, The connecting bracket extends along the extension direction of the mounting beam, and the number of connecting brackets is equal to the number of mounting beams and they are arranged in a one-to-one correspondence, or... The battery tray includes multiple connecting frames, which are spaced apart along the extension direction of the mounting beam.

13. A battery pack, characterized in that, The battery pack includes the battery tray according to any one of claims 1-12.

14. A vehicle, characterized in that, The vehicle includes the battery pack as described in claim 13.

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