An integrated battery tray

Abstract

The utility model provides an integrated battery tray, including the tray body, the frame structure of being equipped with the support frame in four around, being equipped with the recessed cavity in the middle, and being equipped with the support structure of grid in the recessed cavity bottom, still including the wall body of setting in the tray body inside and dividing its recessed cavity into the battery compartment and the electrical compartment, the metal cooling plate of covering to each battery compartment, and the metal cooling plate is the integral type structure that the cooling liquid flow channel is below, the upper surface is plane, the utility model discloses set up the support structure of grid in the tray body, make the support capacity of tray body stronger, set up the integral metal cooling plate in the battery compartment simultaneously, make the higher internal liquid pressure resistance, and avoid the risk that the cooling liquid leaks in the battery tray inside, and moreover, the whole battery tray structure is simple, and the obvious weight reduction, thus process is also simple, and the manufacturing period is short.

Description

Technical Field

[0001] This utility model relates to a battery tray, specifically an integrated battery tray. Background Technology

[0002] As the support for the entire battery module, the battery tray is a crucial component of the electric system in new energy vehicles and a vital guarantee for the safety of the battery system. It is extremely critical to the battery system. While providing physical support for the battery module, the battery tray, through its precise design adapted to the shape and size of the battery pack, ensures the battery remains stable even during vehicle bumps and vibrations, preventing displacement and damage. Simultaneously, the tray must possess good strength and rigidity to withstand external collisions and compression, reducing the risk of battery damage in accidents and building a solid defense for safe operation. Furthermore, the battery tray also needs to play a role in thermal management and protection, assisting in heat dissipation through a reasonable heat dissipation structure to prevent overheating that could lead to performance degradation or shortened lifespan, while also maintaining temperature at low temperatures. Moreover, the battery tray participates in creating a seal, blocking moisture and preventing battery malfunctions due to dampness and dust accumulation, ensuring stable and efficient operation of the battery system. However, current battery trays are typically complex in structure, have numerous components, leading to maintenance difficulties, and are heavy, failing to meet the lightweight requirements of new energy vehicles. Utility Model Content

[0003] This invention addresses the problems of complex and heavy battery tray structures in current battery trays by proposing an integrated battery tray that, while meeting conventional performance requirements, significantly reduces weight, has a high degree of integration, simple processes, and a short manufacturing cycle.

[0004] The technical means adopted by this utility model to solve the above problems is as follows: an integrated battery tray, including a tray body, which is a frame-shaped structure with a support frame around the perimeter and a cavity in the middle, and a grid-like support structure at the bottom of the cavity; it also includes walls disposed inside the tray body to divide the cavity into battery compartments and electrical compartments, and metal cooling plates covering each battery compartment, wherein the metal cooling plates are an integral structure with coolant channels at the bottom and a flat surface on the top. The structure is simple and highly integrated.

[0005] Furthermore, foam is filled within the cavity of the support structure to further enhance the impact resistance of the pallet body.

[0006] Furthermore, the metal cooling plate has clearance grooves for the wall to pass through, and the wall has notches at the locations where the coolant channels of the metal cooling plate pass through, allowing the coolant channels to flow through the notches. This ensures both spatial division and the continuity of the coolant channels.

[0007] Furthermore, the metal cooling plate is fixed to the supporting structure by mechanical connection and / or adhesive bonding.

[0008] Furthermore, a connecting block is installed in the space above the metal cooling plate at the notch. The bottom of the connecting block presses down on the metal cooling plate, and both ends are fixedly connected to the wall. The metal cooling plate is fixed at the same time as being connected to the wall.

[0009] Furthermore, the support frame has a through hole at the coolant inlet / outlet position, and a connector that is sealed to the support frame is provided at the through hole. The connector has a coolant inlet / outlet that communicates with the coolant flow channel. This ensures both coolant flow and a seal within the support frame.

[0010] Furthermore, a sealing strip is provided between the metal cooling plate and the support frame, and a sealing strip is also provided in the clearance groove. This seals and isolates the upper and lower spaces of the metal cooling plate.

[0011] Furthermore, the pallet body includes an L-shaped organic sheet frame and a concave plastic frame, with the organic sheet frame located inside the plastic frame. This reduces weight while maintaining strength.

[0012] Furthermore, a cushioning platform is provided on the outer side of the pallet body to further improve the pallet body's impact resistance.

[0013] Furthermore, the support frame and / or buffer platform are provided with metal bushings for connection to the top cover or the bottom of the vehicle body. This facilitates the installation of the battery pack.

[0014] The beneficial effects of this utility model are: 1. This utility model incorporates a grid-like support structure within the tray body, enhancing its support capacity. Simultaneously, an integrated metal cooling plate within the battery compartment further improves internal resistance to liquid pressure and prevents coolant leakage inside the battery tray. Moreover, the overall battery tray structure is simple, resulting in significant weight reduction, simplified processes, and a shorter manufacturing cycle.

[0015] 2. This utility model fills the cavity of the support structure with impact-resistant foam, so that the bottom surface of the battery tray has the same protection capability as the traditional battery pack bottom protection plate. Therefore, it can replace the traditional additional bottom protection plate parts and has a high degree of integration.

[0016] 3. This utility model ensures the assembly of the wall and the metal cooling plate by setting a clearance groove in the metal cooling plate and a notch in the wall. At the same time, a connecting block is set at the notch. The connected structure not only ensures the continuity of force transmission in the wall when under stress, but also applies a certain pressure to the cooling plate at the bottom of the connecting block, which enhances the fixation of the cooling plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Example 1; Figure 2 This is a schematic diagram of the metal cooling plate fixing method in Embodiment 1; Figure 3 This is a schematic diagram of the tray body disassembly in Example 1; In the diagram: 1. Pallet body, 11. Support frame, 12. Plastic frame, 13. Organic sheet frame, 14. Buffer platform, 15. Metal bushing, 16. Support structure, 17. Foam, 2. Metal cooling plate, 21. Clearance groove, 3. Wall, 31. Notch, 32. Connecting block, 4. Connector, 100. Battery compartment, 200. Electrical compartment. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only, representing schematic diagrams only, not actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Example 1

[0019] An integrated battery tray, such as Figures 1-3 As shown, the tray body 1 comprises a plastic frame 12 and an organic sheet frame 13. The plastic frame 12 has a concave cross-section in both its length and width directions, forming a frame structure with the perimeter higher than the center. The organic sheet frame 13 has two symmetrical inverted L-shaped cross-sections in both its length and width directions, forming a frame structure surrounded by L-shaped outer walls. The organic sheet frame 13 is located inside the plastic frame 12 within the tray body 1. The vertical edges of the organic sheet frame 13 are fitted to the inner walls of the plastic frame 12, and the horizontal edges of the organic sheet frame 13 are fitted to the upper surface of the plastic frame 12. The tray body 1 itself is a frame structure with supporting frames 11 around its perimeter and a concave cavity in the center. The organic sheet frame 13 is located within the supporting frames 11. The combination of plastic and organic materials in the tray body 1 significantly reduces the weight of the battery tray while maintaining its strength, thus meeting the lightweight requirements of new energy vehicles.

[0020] like Figure 3As shown, the pallet body 1 has a grid-like support structure 16 inside. Impact-resistant foam 17 is filled within the cavity enclosed by the support structure 16. This increases the strength of the pallet body 1 while further reducing its weight, and gives the bottom mold of the pallet body 1 the same protective capability as a conventional bottom guard plate, thus replacing traditional bottom guard plate parts and improving integration. Although the cavity enclosed by the support structure 16 in this embodiment is square, and the filling foam 17 is also square, other structures, such as rectangles, rhombuses, or other polygons, can be used in practical applications. Above the support structure 16 inside the pallet body 1, a wall 3 is provided. The wall 3 divides the internal space of the pallet body 1 into multiple spaces, such as... Figure 1 As shown, it is divided into battery compartment 100 and electrical compartment 200, which are used to hold batteries and electrical components respectively. In this embodiment, it is divided into eight spaces in total: six battery compartments 100 and two electrical compartments 200. Of course, it can be divided into other numbers according to actual use needs. The number of battery compartments 100 and electrical compartments 200 can also be allocated as needed.

[0021] like Figure 1 As shown, the battery compartment 100 is equipped with a metal cooling plate 2. The metal cooling plate 2 adopts an integrated structure with a coolant flow channel at the bottom and a flat surface at the top, and is fixed to the support structure 16 by mechanical connection, adhesive bonding, or a combination of mechanical connection and adhesive bonding. Figure 2 As shown, the metal cooling plate 2 has a clearance groove 21 for the wall 3 to pass through, and the wall 3 has a notch 31 at the location where the coolant channel of the metal cooling plate 2 passes through, allowing the coolant channel to pass through the notch 31 and ensuring the continuity of the coolant channel. A connecting block 32 is provided in the space above the metal cooling plate 2 at the notch 31. The two ends of the connecting block 32 are connected to the wall 3 with bolts to ensure the integrity of the wall 3, that is, to ensure the continuity of force transmission on the wall 3 when under stress. At the same time, the bottom of the connecting block 32 is attached to the metal cooling plate 2, which can apply a certain pressure to the metal cooling plate 2, thereby strengthening the fixation of the metal cooling plate 2. To further ensure the sealing of the battery compartment 100, a sealing strip is provided between the metal cooling plate 2 and the inner wall of the support frame 11, and a sealing strip is also provided in the clearance groove 21, sealing and isolating the upper and lower surfaces of the metal cooling plate 2. In the event that the bottom of the tray body 1 breaks and the seal fails, the sealing strip and the metal cooling plate 2 will serve as a second sealing structure for the battery compartment 100.

[0022] The side wall of the support frame 11 has a through hole (not shown in the figure) at the location of the coolant inlet and outlet, such as Figure 1As shown, a connector 4 is provided at the through hole and is sealed to the support frame 11. The connector 4 is provided with a coolant inlet and outlet (not shown in the figure) that communicates with the coolant flow channel. The coolant delivery pipeline of the vehicle body is connected to the connector 4 and can also communicate with the coolant flow channel of the metal cooling plate 2, while ensuring the sealing of the internal space of the tray body 1.

[0023] like Figures 1-3 As shown, a buffer platform 14 is also provided on the outer wall of the support frame 11 to improve the impact resistance of the pallet body 1. Metal bushings 15 are also provided on the support frame 11 and the buffer platform 14 to connect the pallet body 1 to the upper cover plate and to the bottom of the vehicle body. Of course, the metal bushings 15 can also be provided only on the support frame 11 or only on the buffer platform 14.

[0024] The above embodiments are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the protection scope of the present invention, which should be defined by the claims.

Claims

1. An integrated battery tray, characterized in that: The device includes a tray body, which is a frame-shaped structure with a support frame around the perimeter and a recess in the middle, and a grid-like support structure at the bottom of the recess; it also includes walls set inside the tray body to divide the recess into battery compartments and electrical compartments, and metal cooling plates covering each battery compartment, wherein the metal cooling plates are an integral structure with coolant channels at the bottom and a flat surface on the top.

2. The integrated battery tray as described in claim 1, characterized in that: The cavity of the supporting structure is filled with foam.

3. The integrated battery tray as described in claim 1, characterized in that: The metal cooling plate has a clearance groove for the wall to pass through, and the wall has a notch at the location where the coolant channel of the metal cooling plate passes through, and the coolant channel passes through the notch.

4. The integrated battery tray as described in claim 3, characterized in that: The metal cooling plate is fixed to the supporting structure by mechanical connection and / or adhesive bonding.

5. The integrated battery tray as described in claim 3, characterized in that: A connecting block is installed in the space above the metal cooling plate at the gap. The bottom of the connecting block presses down on the metal cooling plate, and both ends are fixedly connected to the wall.

6. The integrated battery tray as described in claim 1, characterized in that: The support frame has a through hole at the location of the coolant inlet and outlet, and a connector that is sealed to the support frame is provided at the through hole. The connector has a coolant inlet and outlet that communicate with the coolant flow channel.

7. The integrated battery tray as described in claim 3, characterized in that: A sealing strip is provided between the metal cooling plate and the support frame, and a sealing strip is also provided in the clearance groove.

8. The integrated battery tray as described in claim 1, characterized in that: The pallet body includes an L-shaped organic sheet frame and a concave plastic frame, wherein the organic sheet frame is located inside the plastic frame.

9. The integrated battery tray as described in claim 1, characterized in that: A buffer platform is provided on the outer side of the tray body.

10. The integrated battery tray as described in claim 1, characterized in that: The support frame and / or buffer platform are provided with metal bushings for connection to the top cover or the bottom of the vehicle body.

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