Flexible folding heat insulation pad

Abstract

This utility model discloses a flexibly foldable heat insulation pad, comprising at least two buffer frames, at least two aerogel core materials, an upper protective film, a lower protective film, two adhesive layers, and two release papers. By arranging at least two buffer frames side-by-side with intervals, embedding at least two aerogel core materials into corresponding through holes, and stacking the upper and lower protective films on the upper and lower surfaces of the buffer frames respectively, with the upper protective film adhering to the upper surface of each aerogel core material and the lower protective film adhering to the lower surface of each aerogel core material, and partially adhering to the lower protective film, this heat insulation pad structure allows adjacent buffer frames to be folded 350 degrees along the protective film, providing multi-faceted protection for the battery cell and offering greater flexibility in use. Folding does not create openings in the protective film, nor does it prevent the protective film from being punctured by fibers within the aerogel core material, thus improving safety and extending the product's lifespan.

Description

Technical Field

[0001] This utility model relates to the field of heat insulation pads, and in particular to a heat insulation pad that can be flexibly folded. Background Technology

[0002] With the development of society and the economy and the improvement of people's living standards, new energy vehicles have become an emerging means of transportation and are loved by many people. Their market share is increasing. New energy vehicles have many advantages, including saving fuel, reducing emissions, effectively protecting the environment, low noise, and low operating costs. However, the safety of the new energy module (i.e., battery) is crucial for new energy vehicles. Furthermore, with the increasing market demand for longer driving ranges, the capacity and energy density of new energy modules are also increasing. Thermal runaway in a new energy module would be extremely dangerous.

[0003] New energy modules include multiple battery modules. During vehicle operation, the cells in each battery module will squeeze and rub against each other due to vibration, which may lead to overheating, runaway, or even fire. Therefore, heat insulation pads need to be installed between adjacent cells.

[0004] Current thermal insulation pads typically consist of an upper and lower protective film stacked on the upper and lower surfaces of a buffer frame and an aerogel core material, then thermo-pressed. While this structure is simple and provides basic insulation, some battery cells have unique external structures or protrusions, requiring the thermal insulation pad to be folded for multi-faceted protection. However, directly folding the pad can easily damage the buffer frame and aerogel core material, causing openings in the protective film. Furthermore, the fibers within the aerogel core material can puncture the protective film during folding, leading to air leakage and damaging the pad. This poses significant safety hazards, affects product quality, shortens product lifespan, and causes inconvenience for users, failing to meet current needs. Therefore, it is necessary to improve current thermal insulation pads. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a flexible foldable heat insulation pad. This effectively solves the problems of existing heat insulation pads, which are prone to opening of the protective film when folded, and the fibers inside the aerogel core material can puncture the protective film during the folding process, leading to air leakage, damage to the heat insulation pad, significant safety hazards, and impact on product quality and service life.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A foldable heat insulation pad includes at least two buffer frames, at least two aerogel core materials, an upper protective film, a lower protective film, two adhesive layers, and two release papers. The at least two buffer frames are arranged side by side with intervals, and each buffer frame has through holes formed on its upper and lower surfaces. The at least two aerogel core materials are respectively adapted to and embedded in the corresponding through holes, and the number of aerogel core materials is the same as the number of buffer frames. The upper and lower protective films are stacked on the upper and lower surfaces of the buffer frames, and the upper protective film is adhered to the upper surface of each aerogel core material, and the lower protective film is adhered to the lower surface of each aerogel core material. Part of the upper protective film is adhered to part of the lower protective film. The two adhesive layers are stacked on the surfaces of the upper and lower protective films. The two release papers are stacked on the surfaces of the corresponding adhesive layers.

[0008] As a preferred embodiment, the buffer frame is made of silicone, which has good high temperature resistance, corrosion resistance, and aging resistance, as well as excellent cushioning and shock absorption performance.

[0009] As a preferred embodiment, the upper protective film is a PET film or a PI film.

[0010] As a preferred embodiment, the lower protective film is a PET film or a PI film.

[0011] As a preferred embodiment, the adhesive layer is a double-sided adhesive layer, which has good adhesion properties.

[0012] As a preferred embodiment, the release paper is provided with a tear-off section, which facilitates tearing off the release paper, making the operation simple, convenient and quick.

[0013] As a preferred embodiment, the connection between the tear-off part and the release paper is arc-shaped, which can effectively enhance the force on the tear-off part and make the release paper easier to tear off.

[0014] As a preferred embodiment, a reinforcing layer is further provided, which is superimposed on the surface of the tear-off section and part of the release paper, effectively enhancing the structural strength and preventing the tear-off section from breaking due to the excessive stickiness of the double-sided adhesive layer.

[0015] As a preferred embodiment, the buffer frame is square, and correspondingly, the through hole, aerogel core material, upper protective film, lower protective film, adhesive layer and release paper are all square.

[0016] As a preferred embodiment, there are two buffer frames, corresponding to two aerogel core materials, one upper protective film and one lower protective film, and two adhesive layers and release paper.

[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0018] By arranging at least two buffer frames side by side with intervals, and forming through holes on the upper and lower surfaces of each buffer frame, at least two aerogel core materials are respectively adapted to and embedded in the corresponding through holes. An upper protective film and a lower protective film are stacked on the upper and lower surfaces of the buffer frames, with the upper protective film adhering to the upper surface of each aerogel core material and the lower protective film adhering to the lower surface of each aerogel core material. Part of the upper protective film and part of the lower protective film are adhering to each other. Two adhesive layers are stacked on the surfaces of the upper and lower protective films. Two release papers are then separated. Unlike traditional insulation pads, this type of pad, which is not stacked on the surface of the corresponding adhesive layer, allows two adjacent buffer frames to be folded 350 degrees along the protective film. This provides comprehensive protection for the battery cell and makes it more flexible to use. The folding process prevents damage to the buffer frames and aerogel core material, avoids openings in the protective film, and prevents the protective film from being punctured by fibers within the aerogel core material, thus preventing air leakage. This also prevents damage to the insulation pad, improves safety during use, enhances product quality, extends product lifespan, and provides convenience for users, meeting current needs.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the attached diagram:

[0023] 10. Buffer frame; 11. Through hole

[0024] 20. Aerogel core material; 30. Upper protective film

[0025] 40. Lower protective film; 50. Adhesive layer

[0026] 60. Release paper 61. Tear-off section

[0027] 62. Reinforcement layer. Detailed Implementation

[0028] Please refer to Figure 1 and Figure 2 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including at least two buffer frames 10, at least two aerogel core materials 20, an upper protective film 30, a lower protective film 40, two adhesive layers 50, and two release papers 60.

[0029] The at least two buffer frames 10 are arranged side by side with intervals, and each buffer frame 10 has a through hole 11 formed through its upper and lower surfaces; in this embodiment, the buffer frame 10 is made of silicone material, which has good high temperature resistance, corrosion resistance, and aging resistance, and also has excellent buffering and shock absorption performance; the buffer frame 10 is square, and correspondingly, the through hole 11 is square; there are two buffer frames 10.

[0030] The at least two aerogel core materials 20 are respectively adapted to and embedded in the corresponding through holes 11. The number of aerogel core materials 20 is the same as the number of buffer frames 10. The number of aerogel core materials 20 and the number of buffer frames 10 can be set according to actual needs in order to protect the battery cell from multiple aspects. In this embodiment, the aerogel core material 20 is square. There are two aerogel core materials 20.

[0031] The upper protective film 30 and the lower protective film 40 are stacked on the upper and lower surfaces of the buffer frame 10, and the upper protective film 30 is attached to the upper surface of each aerogel core material 20, and the lower protective film 40 is attached to the lower surface of each aerogel core material 20. Part of the upper protective film 30 and part of the lower protective film 40 are attached together. In this embodiment, the upper protective film 30 is a PET film or a PI film; the upper protective film 30 is square; there is one upper protective film 30; the lower protective film 40 is a PET film or a PI film; the lower protective film 40 is square; there is one lower protective film 40.

[0032] The two adhesive layers 50 are stacked on the surfaces of the upper protective film 30 and the lower protective film 40; in this embodiment, the adhesive layer 50 is a double-sided adhesive layer with good adhesion performance; the adhesive layer 50 is square; there are two adhesive layers 50.

[0033] The two release papers 60 are respectively stacked on the surface of the corresponding adhesive layer 50. In this embodiment, the release paper 60 is provided with a tear-off part 61, which facilitates tearing off the release paper 60, making the operation simple, convenient and quick. The connection between the tear-off part 61 and the release paper 60 is arc-shaped, which can effectively enhance the force of the tear-off part 61, making the release paper 60 easier to tear off. The release paper 60 is square. There are two release papers 60. A reinforcing layer 62 is further provided, which is stacked on the surface of the tear-off part 61 and part of the release paper 60, effectively enhancing the structural strength and preventing the tear-off part 61 from breaking due to the strong adhesion of the double-sided adhesive layer.

[0034] The manufacturing process of this embodiment is described in detail below:

[0035] First, form and cut two buffer frames 10, and cut two aerogel core materials 20, one upper protective film 30, one lower protective film 40, two adhesive layers 50, and two release papers 60. Next, embed the two aerogel core materials 20 into the corresponding through holes 11. Then, stack the upper protective film 30 and the lower protective film 40 on the upper and lower surfaces of the buffer frame 10, attach the upper protective film 30 to the upper surface of each aerogel core material 20, attach the lower protective film 40 to the lower surface of each aerogel core material 20, and attach a portion of the upper protective film 30 to a portion of the lower protective film 40. Next, stack the two adhesive layers 50 on the surfaces of the upper protective film 30 and the lower protective film 40. Finally, stack the two release papers 60 on the surfaces of the corresponding adhesive layers 50, and then vacuum-press them for molding.

[0036] When in use, place the heat insulation pad between two adjacent battery cells, and peel off the two release papers 60 to fix the heat insulation pad. The two adjacent buffer frames 10 can be folded 350 degrees along the protective film. They can be folded to the required angle according to different needs, so as to protect the battery cells from different angles. This is suitable for different usage scenarios and brings convenience to users.

[0037] The key design feature of this utility model is:

[0038] By arranging at least two buffer frames side by side with intervals, and forming through holes on the upper and lower surfaces of each buffer frame, at least two aerogel core materials are respectively adapted to and embedded in the corresponding through holes. An upper protective film and a lower protective film are stacked on the upper and lower surfaces of the buffer frames, with the upper protective film adhering to the upper surface of each aerogel core material and the lower protective film adhering to the lower surface of each aerogel core material. Part of the upper protective film and part of the lower protective film are adhering to each other. Two adhesive layers are stacked on the surfaces of the upper and lower protective films. Two release papers are then separated. Unlike traditional insulation pads, this type of pad, which is not stacked on the surface of the corresponding adhesive layer, allows two adjacent buffer frames to be folded 350 degrees along the protective film. This provides comprehensive protection for the battery cell and makes it more flexible to use. The folding process prevents damage to the buffer frames and aerogel core material, avoids openings in the protective film, and prevents the protective film from being punctured by fibers within the aerogel core material, thus preventing air leakage. This also prevents damage to the insulation pad, improves safety during use, enhances product quality, extends product lifespan, and provides convenience for users, meeting current needs.

[0039] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A flexible foldable thermal insulation mat, characterized in that: The device includes at least two buffer frames, at least two aerogel core materials, an upper protective film, a lower protective film, two adhesive layers, and two release papers. The at least two buffer frames are arranged side by side with intervals, and each buffer frame has through holes formed on its upper and lower surfaces. The at least two aerogel core materials are respectively adapted to and embedded in the corresponding through holes, and the number of aerogel core materials is the same as the number of buffer frames. The upper and lower protective films are stacked on the upper and lower surfaces of the buffer frames, and the upper protective film is adhered to the upper surface of each aerogel core material, and the lower protective film is adhered to the lower surface of each aerogel core material. Part of the upper protective film is adhered to part of the lower protective film. The two adhesive layers are stacked on the surfaces of the upper and lower protective films. The two release papers are stacked on the surfaces of the corresponding adhesive layers, and each release paper has a tear-away portion and a reinforcing layer, which is stacked on the tear-away portion and part of the release paper.

2. The flexible foldable insulating mat of claim 1, wherein: The buffer frame is made of silicone.

3. The flexible foldable insulating mat of claim 1, wherein: The upper protective film is a PET film or a PI film.

4. The flexible foldable insulating mat of claim 1, wherein: The lower protective film is a PET film or a PI film.

5. The flexible foldable insulating mat of claim 1, wherein: The adhesive layer is a double-sided adhesive layer.

6. The flexible foldable insulating mat of claim 1, wherein: The connection between the tear-off section and the release paper is arc-shaped.

7. The flexible foldable insulating mat of claim 1, wherein: The buffer frame is square, and correspondingly, the through hole, aerogel core material, upper protective film, lower protective film, adhesive layer and release paper are all square.

8. The flexible foldable insulating mat of claim 1, wherein: There are two buffer frames, corresponding to two aerogel core materials, one upper protective film and one lower protective film, and two adhesive layers and release paper.

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