A new energy battery flame-retardant polyurethane foam

Abstract

The utility model discloses a new energy battery is with flame -retardant polyurethane bubble cotton, including buffer board, the upper end surface of buffer board is provided with first bubble cotton layer, the lower end surface of buffer board is provided with second bubble cotton layer, first bubble cotton layer and second bubble cotton layer all are made of polyurethane material, buffer board all evenly distributed have a plurality of article hole, be provided with spherical air bag in the article hole, the inboard of article hole is provided with annular groove. Compared with prior art polyurethane bubble cotton, the buffer board is additionally arranged between the first bubble cotton layer and the second bubble cotton layer, a plurality of spherical air bags for buffering are evenly distributed on the buffer board, the spherical air bags are deformed to buffer the battery pack, and thus the protection effect of the polyurethane bubble cotton on the battery pack is improved.

Description

Technical Field

[0001] This utility model relates to the field of flame-retardant foam technology, and in particular to a flame-retardant polyurethane foam for new energy batteries. Background Technology

[0002] New energy batteries are the core of electric vehicles, energy storage systems, and renewable energy integration, encompassing multiple technical routes. They are the power source for new energy vehicles. During transportation, new energy batteries usually need to be wrapped with polyurethane foam on the outside of the battery pack. The cushioning effect of existing polyurethane foam mainly comes from the material itself, but the cushioning effect of polyurethane foam itself is limited, so its protection capability for the battery pack is not strong. Summary of the Invention

[0003] The purpose of this utility model is to provide a flame-retardant polyurethane foam for new energy batteries in order to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A flame-retardant polyurethane foam for new energy batteries includes a buffer board. A first foam layer is provided on the upper end face of the buffer board, and a second foam layer is provided on the lower end face of the buffer board. Both the first and second foam layers are made of polyurethane material. A plurality of placement holes are evenly distributed on the buffer board, and a spherical airbag is provided in each placement hole. An annular groove is formed on the inner side of each placement hole.

[0006] Preferably, the bottom of the first foam layer is provided with a plurality of first slots, and the side of the second foam layer opposite to the buffer plate is provided with a plurality of second slots.

[0007] Preferably, the first foam layer includes a first flame-retardant layer, a first waterproof layer is provided at the bottom of the first flame-retardant layer, a foam base layer is provided at the bottom surface of the first waterproof layer, a second waterproof layer is provided at the bottom surface of the foam base layer, and a second flame-retardant layer is provided at the bottom of the second waterproof layer.

[0008] Preferably, the first flame-retardant layer, the first waterproof layer, the foam base layer, the second waterproof layer, and the second flame-retardant layer are integrated by hot pressing.

[0009] Preferably, the first flame-retardant layer includes a magnesium oxide board, the upper end of which is covered with a first flame-retardant film, and the lower end of which is covered with a second flame-retardant film.

[0010] Preferably, the first flame-retardant film is a ceramicized silicone film, and the first flame-retardant film and the second flame-retardant film have the same structure.

[0011] Preferably, the upper surface of the first foam layer is provided with a plurality of anti-slip grooves.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] Compared with existing polyurethane foam, this application adds a buffer plate between the first foam layer and the second foam layer. The buffer plate has multiple spherical airbags that play a buffering role. The deformation of the spherical airbags plays a buffering role on the battery pack, thereby improving the protection effect of polyurethane foam on the battery pack. Attached Figure Description

[0014] Figure 1 A top view of the polyurethane foam structure according to an embodiment of the present invention is shown;

[0015] Figure 2 A schematic diagram of the exploded structure of polyurethane foam according to an embodiment of the present invention is shown;

[0016] Figure 3 A schematic diagram of a buffer plate structure according to an embodiment of the present invention is shown;

[0017] Figure 4 A schematic diagram of a spherical airbag structure according to an embodiment of the present invention is shown;

[0018] Figure 5 A schematic diagram of the cross-sectional structure of the first foam layer according to an embodiment of the present invention is shown;

[0019] Figure 6 A schematic diagram of the first flame-retardant layer structure according to an embodiment of the present invention is shown;

[0020] Figure 7 A schematic diagram of the anti-slip groove structure provided according to an embodiment of the present invention is shown.

[0021] Legend:

[0022] 1. First foam layer; 2. Buffer plate; 3. Second foam layer; 4. First slot; 5. Second slot; 6. Storage hole; 7. Annular groove; 8. Spherical airbag; 9. First flame retardant layer; 10. First waterproof layer; 11. Foam base layer; 12. Second waterproof layer; 13. Second flame retardant layer; 14. Magnesium oxide board; 15. First flame retardant film; 16. Second flame retardant film; 17. Anti-slip groove. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution:

[0025] A flame-retardant polyurethane foam for new energy batteries includes a buffer plate 2. A first foam layer 1 is provided on the upper end surface of the buffer plate 2, and a second foam layer 3 is provided on the lower end surface of the buffer plate 2. Both the first foam layer 1 and the second foam layer 3 are made of polyurethane material. A plurality of placement holes 6 are evenly distributed on the buffer plate 2. A spherical airbag 8 is provided in the placement hole 6. An annular groove 7 is opened on the inner side of the placement hole 6. The spherical airbag 8 is filled with inert gas. The placement hole 6 fixes the spherical airbag 8. When the foam is squeezed, the spherical airbag 8 deforms. The deformed part of the spherical airbag 8 is squeezed into the annular groove 7. The placement hole 6 and the annular groove 7 work together to prevent the spherical airbag 8 from being misaligned after being squeezed, which would damage the foam structure.

[0026] Specifically, such as Figure 3 and Figure 4 As shown, the bottom of the first foam layer 1 is provided with multiple first slots 4, and the side of the second foam layer 3 opposite to the buffer plate 2 is provided with multiple second slots 5. The first slots 4 and the second slots 5 are both adapted to the spherical airbag 8.

[0027] Specifically, such as Figure 5 As shown, the first foam layer 1 includes a first flame-retardant layer 9, a first waterproof layer 10 is provided at the bottom of the first flame-retardant layer 9, a foam base layer 11 is provided at the bottom surface of the first waterproof layer 10, a second waterproof layer 12 is provided at the bottom surface of the foam base layer 11, and a second flame-retardant layer 13 is provided at the bottom of the second waterproof layer 12. The first flame-retardant layer 9, the first waterproof layer 10, the foam base layer 11, the second waterproof layer 12, and the second flame-retardant layer 13 are integrated by hot pressing.

[0028] Specifically, such as Figure 6 As shown, the first flame-retardant layer 9 includes a magnesium oxide board 14, the upper end of which is covered with a first flame-retardant film 15, and the lower end of which is covered with a second flame-retardant film 16. The first flame-retardant film 15 is a ceramicized silicone film, and the first flame-retardant film 15 and the second flame-retardant film 16 have the same structure. The ceramicized silicone film is a special flame-retardant material that can be converted into a ceramic body at high temperature. It combines the flexibility of silicone with the high temperature resistance of ceramics and is widely used in new energy batteries, aerospace, building fire protection and other fields.

[0029] Specifically, such as Figure 7 As shown, multiple anti-slip grooves 17 are evenly provided on the upper surface of the first foam layer 1. The anti-slip grooves 17 can increase the friction between the foam and the battery pack, so that the foam and the battery pack fit tightly together.

[0030] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new energy battery flame-retardant polyurethane foam, comprising a buffer plate (2), characterized in that, The upper end face of the buffer plate (2) is provided with a first foam layer (1), and the lower end face of the buffer plate (2) is provided with a second foam layer (3). The first foam layer (1) and the second foam layer (3) are both made of polyurethane material. The buffer plate (2) has a plurality of storage holes (6) evenly distributed on it. A spherical airbag (8) is provided in the storage hole (6), and an annular groove (7) is opened on the inner side of the storage hole (6).

2. The flame-retardant polyurethane foam for new energy batteries according to claim 1, characterized in that, The bottom of the first foam layer (1) is provided with a plurality of first slots (4), and the second foam layer (3) is provided with a plurality of second slots (5) on the side opposite to the buffer plate (2).

3. The flame-retardant polyurethane foam for new energy batteries according to claim 1, characterized in that, The first foam layer (1) includes a first flame retardant layer (9), a first waterproof layer (10) is provided at the bottom of the first flame retardant layer (9), a foam base layer (11) is provided at the bottom surface of the first waterproof layer (10), a second waterproof layer (12) is provided at the bottom surface of the foam base layer (11), and a second flame retardant layer (13) is provided at the bottom of the second waterproof layer (12).

4. The flame-retardant polyurethane foam for new energy batteries according to claim 3, characterized in that, The first flame-retardant layer (9), the first waterproof layer (10), the foam base layer (11), the second waterproof layer (12), and the second flame-retardant layer (13) are integrated by hot pressing.

5. The flame-retardant polyurethane foam for new energy batteries according to claim 4, characterized in that, The first flame retardant layer (9) includes a magnesium oxide board (14), the upper end of which is covered with a first flame retardant film (15), and the lower end of which is covered with a second flame retardant film (16).

6. The flame-retardant polyurethane foam for new energy batteries according to claim 5, characterized in that, The first flame retardant film (15) is a ceramicized silicone film, and the first flame retardant film (15) and the second flame retardant film (16) have the same structure.

7. The flame-retardant polyurethane foam for new energy batteries according to claim 1, characterized in that, Multiple anti-slip grooves (17) are evenly provided on the upper surface of the first foam layer (1).

Images