Aerogel pre-oxidized fiber felt for battery module buffer heat insulation pad

Abstract

The utility model relates to the technical field of battery module protection, in particular to an aerogel pre-oxidized fiber felt for a battery module buffer heat insulation pad, which comprises a fiber felt main body, the fiber felt main body comprises an aerogel pre-oxidized fiber layer, the outer side of the aerogel pre-oxidized fiber layer is sequentially provided with a buffer protection layer, a ceramic fiber layer, an anti-corrosion layer and a waterproof film, and the outer side of the aerogel pre-oxidized fiber layer is provided with an anti-corrosion layer. According to the utility model, the overall water resistance and corrosion resistance of the silk felt main body are improved through the arranged anti-corrosion layer and the waterproof membrane, the damage of corrosive liquid to the aerogel pre-oxidized fiber layer and the buffer protection layer is avoided, and the heat insulation performance of the silk felt main body to the battery module can be improved through the arranged ceramic fiber layer; and the two buffer protection layers can be matched with the aerogel pre-oxidized fiber layer to improve the buffer and impact resistance of the battery module, so that the protection of the fiber felt main body on the battery module is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery module protection technology, specifically to an aerogel pre-oxygenated felt for use as a buffer and heat insulation pad for battery modules. Background Technology

[0002] Aerogel pre-oxidized felt is a type of pre-oxidized felt made from aerogel materials. Aerogel is a porous, lightweight, and highly absorbent material with excellent thermal and sound insulation properties. Pre-oxidized felt is a material with good high-temperature resistance and is commonly used in thermal and sound insulation applications. Aerogel pre-oxidized felt combines the characteristics of both aerogel and pre-oxidized felt, offering advantages such as lightweight, thermal insulation, sound insulation, and high-temperature resistance. Therefore, it is widely used in specific applications, such as thermal and sound insulation in battery modules.

[0003] Existing aerogel pre-oxygenated felt for battery modules is usually installed at the bottom of the battery module. Although it can provide some heat insulation and cushioning for the battery module, it is easily torn by excessive external impact during long-term use. At the same time, the environment around the battery module is often corrosive, and the corrosion resistance of aerogel pre-oxygenated felt is insufficient. Therefore, it is often damaged by corrosion, which impairs its heat insulation effect on the battery module. Thus, it still has some shortcomings.

[0004] In summary, it is necessary to invent an aerogel pre-oxidized fiber felt for use as a buffer insulation pad for battery modules. Utility Model Content

[0005] Therefore, this utility model provides an aerogel pre-oxidized fiber felt for use as a buffer insulation pad for battery modules, in order to solve the problem that it is easily torn due to excessive external impact during long-term use, and that the environment around the battery module is often corrosive, while the corrosion resistance of the aerogel pre-oxidized fiber felt is also insufficient.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an aerogel pre-oxidized filament felt for a battery module buffer heat insulation pad, comprising a filament felt body, the filament felt body comprising an aerogel pre-oxidized filament layer, and a buffer protective layer, a ceramic fiber layer, an anti-corrosion layer and a waterproof membrane sequentially disposed on the outer side of the aerogel pre-oxidized filament layer.

[0007] Preferably, two buffer protective layers are provided, and the two buffer protective layers are fixed on the upper and lower sides of the outer wall of the aerogel pre-oxidized fiber layer. The thickness of the buffer protective layer is greater than the thickness of the aerogel pre-oxidized fiber layer.

[0008] Preferably, the buffer protective layer includes a rubber sheet and a rubber cylinder. The rubber sheet has a double-layer structure, and the upper and lower ends of the rubber cylinder are fixed to the outer wall of the opposite side of the rubber sheet. Multiple rubber cylinders are evenly arranged in a strip array.

[0009] Preferably, two ceramic fiber layers are provided, and the two ceramic fiber layers are respectively fixed on the outer wall of the buffer protective layer away from the aerogel pre-oxidized fiber layer.

[0010] Preferably, an anti-corrosion layer is fixed to the outer wall of the bottom end of the ceramic fiber layer and the side away from the buffer protective layer, and the thickness of the anti-corrosion layer is smaller than the thickness of the ceramic fiber layer.

[0011] Preferably, a waterproof membrane is installed on the outer wall side of the anti-corrosion layer away from the ceramic fiber layer, and the thickness of the waterproof membrane is smaller than the thickness of the anti-corrosion layer.

[0012] Preferably, both sides of the outer wall of the felt body are provided with rubber side layers for sealing, and the rubber side layers are arranged in a U-shape.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, the anti-corrosion layer and waterproof membrane are used to improve the overall water resistance and corrosion resistance of the felt body, preventing corrosive liquids from damaging the aerogel pre-oxidized fiber layer and the buffer protection layer. The ceramic fiber layer can improve the heat insulation performance of the felt body for the battery module. The two buffer protection layers work together with the aerogel pre-oxidized fiber layer to improve the buffering and impact resistance of the battery module, thus enhancing the protection of the battery module by the felt body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the present invention viewed from the front.

[0016] Figure 2 This is a cross-sectional view of the present invention from the front view.

[0017] Figure 3 This is a top view of the structure of the aerogel pre-oxidized fiber layer of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the buffer protective layer in this utility model.

[0019] In the diagram: 100, main body of the felt; 110, aerogel pre-oxygenated fiber layer; 120, buffer protective layer; 121, rubber sheet; 122, rubber cylinder; 130, ceramic fiber layer; 140, anti-corrosion layer; 150, waterproof membrane; 200, rubber side layer. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] See attached document Figure 1-4 This utility model provides an aerogel pre-oxidized fiber mat for use as a buffer and heat insulation pad in a battery module. It includes a fiber mat body 100, with rubber side layers 200 for sealing on both sides of the outer wall of the fiber mat body 100. The rubber side layers 200 are U-shaped and are used to seal both sides of the fiber mat body 100, preventing the material layers from breaking. The rubber side layers 200 can be fixed to the outer walls of the fiber mat body 100 by stitching. The fiber mat body 100 includes an aerogel pre-oxidized fiber layer 110, which can be honeycomb-shaped to improve its heat insulation and buffering performance, as well as its impact resistance. A buffer protective layer 120, a ceramic fiber layer 130, and an anti-corrosion layer are sequentially arranged on the outer side of the aerogel pre-oxidized fiber layer 110. The aerogel pre-oxidized fiber layer 110 and waterproof membrane 150 are provided. Two buffer protective layers 120 are provided. The two buffer protective layers 120 are fixed on the upper and lower sides of the outer wall of the aerogel pre-oxidized fiber layer 110. The thickness of the buffer protective layer 120 is greater than the thickness of the aerogel pre-oxidized fiber layer 110. The buffer protective layer 120 includes a rubber plate 121 and a rubber cylinder 122. The rubber plate 121 has a double-layer structure. The upper and lower ends of the rubber cylinder 122 are fixed to the outer wall of the opposite side of the rubber plate 121. Multiple rubber cylinders 122 are evenly arranged in a strip array. Specifically, when the main body of the felt 100 is impacted, the rubber cylinders 122 will contract. The rubber plate 121 and the rubber cylinder 122 can further buffer and offset the impact, thereby improving the overall buffering and impact resistance of the main body of the felt 100. At the same time, the buffer protective layer 120 can also improve the tear resistance of the main body of the felt 100.

[0022] Two ceramic fiber layers 130 are provided, each fixed to the outer wall of the buffer protective layer 120 on the side away from the aerogel pre-oxidized fiber layer 110. The function of the ceramic fiber layers 130 is to provide heat insulation and heat preservation. Ceramic fibers have excellent heat insulation properties and can effectively block heat conduction and loss, thereby maintaining the temperature stability of the object and improving the heat insulation performance of the battery module. An anti-corrosion layer 140 is fixed to the outer wall of the bottom ceramic fiber layer 130 on the side away from the buffer protective layer 120. The thickness of the anti-corrosion layer 140 is smaller than that of the ceramic fiber layer 130. A waterproof membrane 150 is installed on the outer wall side of the anti-corrosion layer 140 away from the ceramic fiber layer 130. The thickness of the waterproof membrane 150 is smaller than that of the anti-corrosion layer 140. The anti-corrosion layer 140 can be made of anti-corrosion rubber, such as fluororubber, which can improve the overall corrosion resistance of the felt body 100 and prevent the aerogel pre-oxidized fiber layer 110, the buffer protection layer 120 and the ceramic fiber layer 130 from being corroded, thus ensuring the buffering and heat insulation performance of the felt body 100 for the battery module. The waterproof membrane 150 is provided to improve the water resistance of the felt body 100, and the waterproof membrane 150 can be made of polypropylene film or polyethylene film.

[0023] The usage process of this utility model is as follows: Personnel need to fix the rubber cylinder 122 in an array on opposite sides of the two rubber plates 121 by bonding or other means, and then bond the buffer protective layer 120 to the upper and lower sides of the outer wall of the aerogel pre-oxygenated fiber layer 110. Then, fix the ceramic fiber layer 130 at both ends of the buffer protective layer 120. Finally, fix the anti-corrosion layer 140 and the waterproof membrane 150 on one end face of the battery module. After completion, fix the rubber side layer 200 on both sides of the felt body 100 by stitching.

[0024] During use, the end without the anti-corrosion layer 140 and waterproof membrane 150 can be fixed to the battery module. The anti-corrosion layer 140 and waterproof membrane 150 improve the overall water resistance and corrosion resistance of the felt body 100. The ceramic fiber layer 130 improves the heat insulation performance of the felt body 100 for the battery module. The two buffer protection layers 120 work in conjunction with the aerogel pre-oxidized fiber layer 110 to improve the buffering and impact resistance of the battery module, thus enhancing the protection of the battery module by the felt body 100.

[0025] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. An aerogel pre-oxidized filament felt for use as a buffer insulation pad in a battery module, comprising a filament felt body (100), characterized in that: The felt body (100) includes an aerogel pre-oxidized fiber layer (110), and a buffer protective layer (120), a ceramic fiber layer (130), an anti-corrosion layer (140) and a waterproof membrane (150) are sequentially arranged on the outside of the aerogel pre-oxidized fiber layer (110).

2. The aerogel pre-oxidized fiber felt for a battery module buffer insulation pad according to claim 1, characterized in that: The number of buffer protective layers (120) is two, and the two buffer protective layers (120) are fixed on the upper and lower sides of the outer wall of the aerogel pre-oxidized fiber layer (110). The thickness of the buffer protective layer (120) is greater than the thickness of the aerogel pre-oxidized fiber layer (110).

3. The aerogel pre-oxidized fiber felt for a battery module buffer insulation pad according to claim 2, characterized in that: The buffer protective layer (120) includes a rubber plate (121) and a rubber cylinder (122). The rubber plate (121) has a double-layer structure. The upper and lower ends of the rubber cylinder (122) are fixed to the outer wall of the opposite side of the rubber plate (121). Multiple rubber cylinders (122) are evenly arranged in a strip array.

4. The aerogel pre-oxidized fiber felt for a battery module buffer insulation pad according to claim 1, characterized in that: The number of ceramic fiber layers (130) is two, and the two ceramic fiber layers (130) are respectively fixed on the outer wall of the buffer protective layer (120) away from the aerogel pre-oxygenated fiber layer (110).

5. An aerogel pre-oxidized fiber felt for use as a buffer and heat insulation pad in a battery module according to claim 4, characterized in that: An anti-corrosion layer (140) is fixed on the outer wall of the bottom end of the ceramic fiber layer (130) and on the side away from the buffer protective layer (120). The thickness of the anti-corrosion layer (140) is smaller than that of the ceramic fiber layer (130).

6. The aerogel pre-oxidized fiber felt for a battery module buffer insulation pad according to claim 5, characterized in that: A waterproof membrane (150) is installed on the outer wall side of the anti-corrosion layer (140) away from the ceramic fiber layer (130), and the thickness of the waterproof membrane (150) is smaller than that of the anti-corrosion layer (140).

7. An aerogel pre-oxidized fiber felt for use as a buffer and heat insulation pad in a battery module, as described in claim 1. Its features are: Both sides of the outer wall of the felt body (100) are provided with rubber side layers (200) for sealing. The rubber side layer (200) is configured in a U-shape.

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