Silica gel foam heat insulation board for new energy battery

By designing a combined structure of supporting motherboard, sealing frame, silicone foam and rubber strip in the new energy battery, the problem that silicone foam insulation board cannot buffer external vibration is solved, achieving efficient heat preservation and vibration resistance of the battery, and improving charging and discharging efficiency.

CN224304742UActive Publication Date: 2026-05-29NANJING PAKTAN SEALING SYST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING PAKTAN SEALING SYST CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing silicone foam insulation boards cannot effectively buffer external vibrations and impacts in new energy batteries, resulting in poor contact between electrode materials and current collectors, increased internal resistance, and consequently, energy loss and reduced charging and discharging efficiency.

Method used

A buffer mechanism was designed, comprising a supporting motherboard, a sealed frame, medium-hardness silicone foam, rubber strips, closed-cell silicone foam, and a grid-shaped positioning block. Through adhesive bonding and snap-fit ​​structure, the insulation and buffer functions of the insulation board are combined, enhancing the battery's heat insulation and vibration resistance.

Benefits of technology

It improves the battery's heat preservation effect, enhances the battery's buffering capacity, maintains good contact between the electrode material and the current collector, stabilizes the battery's internal resistance, reduces energy loss, and improves charging and discharging efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224304742U_ABST
Patent Text Reader

Abstract

The utility model relates to new energy battery technical field especially is silica gel foam insulation board for new energy battery, including support mainboard, both sides of support mainboard near the edge all are fixedly installed with sealed square, the utility model places the whole insulation board between both sides battery, improves the heat preservation and heat insulation effect to the battery in the cooperation of both sides closed cell silica gel foam and both sides sealed square, and the cooperation of both sides medium hardness silica gel foam and rubber strip corresponding to it comes to strengthen the buffer effect to both sides battery, the whole insulation board improves the heat preservation effect and also strengthens the buffer effect to both sides battery, makes the electrode material and current collector in the battery interior can keep good contact state, this kind of situation can make the battery resistance maintain stable or reduce, and then reduces energy loss, promotes a series of positive effects such as charge and discharge efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, and in particular to a silicone foam insulation board for new energy batteries. Background Technology

[0002] In the field of new energy, batteries are core components, and their performance and lifespan are significantly affected by temperature. Excessive temperature will accelerate the internal chemical reaction of the battery, leading to capacity decay and an increased risk of thermal runaway. Excessive temperature will increase the internal resistance of the battery and reduce the charging and discharging efficiency. Therefore, it is crucial to carry out effective heat insulation treatment for new energy batteries.

[0003] While the currently used silicone foam insulation boards are effective in providing insulation for new energy batteries, their function is relatively limited. In actual use, when new energy vehicles are in motion, the batteries will be subjected to varying degrees of vibration and impact due to factors such as different road conditions. If the silicone foam insulation board cannot effectively buffer and absorb these external forces, the contact state between the electrode materials and current collectors inside the battery will deteriorate. This situation will lead to an increase in the battery's internal resistance, which in turn will cause a series of problems such as increased energy loss and reduced charging and discharging efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides the following technical solution: a silicone foam insulation board for new energy batteries, comprising a main support board, wherein sealing frames are fixedly installed on both the left and right sides of the main support board near the edges.

[0005] The left and right sides of the supporting motherboard are symmetrically fixed with buffer mechanisms that reduce the buffering force between the batteries while keeping them warm.

[0006] As an improvement to the above technical solution, the buffer mechanism includes a medium-hardness silicone foam, a rubber strip, a closed-cell silicone foam, and a grid-shaped positioning block. The medium-hardness silicone foam is glued to the left side of the supporting main board. The medium-hardness silicone foam is movably engaged with the sealing frame. A first placement slot is provided on the right side of the medium-hardness silicone foam, and a second placement slot is provided on the left side of the supporting main board. The rubber strip is movably engaged in the first placement slot, and the end of the rubber strip away from the medium-hardness silicone foam is movably engaged with the second placement slot. The closed-cell silicone foam is glued to the left side of the medium-hardness silicone foam. A grid-shaped positioning slot is provided on the left side of the medium-hardness silicone foam. The grid-shaped positioning block is fixedly installed on the right side of the closed-cell silicone foam, and the grid-shaped positioning block is movably engaged with the grid-shaped positioning slot.

[0007] As an improvement to the above technical solution, the thickness of the sealing frame is greater than the thickness of the medium-hardness silicone foam.

[0008] As an improvement to the above technical solution, there are multiple first placement slots, multiple second placement slots and multiple rubber strips, which are arranged linearly and evenly between the support motherboard and the medium-hardness silicone foam.

[0009] As an improvement to the above technical solution, the first placement slot and the horizontal slot in the grid-shaped positioning slot are designed to be staggered.

[0010] The beneficial effects of this utility model are as follows: After the insulation board is placed between the batteries on both sides, the combination of closed-cell silicone foam on both sides and the sealing frame on both sides improves the heat insulation effect of the batteries. At the same time, the combination of medium-hardness silicone foam on both sides and its corresponding rubber strip enhances the buffering effect of the batteries on both sides. The insulation board as a whole improves the heat insulation effect while also enhancing the buffering effect of the batteries on both sides, so that the electrode material and current collector inside the battery can maintain a good contact state. This will keep the internal resistance of the battery stable or reduce it, thereby reducing energy loss and improving charging and discharging efficiency, among other positive effects. Attached Figure Description

[0011] Figure 1 This is a front view of the overall structure of this utility model;

[0012] Figure 2 This is an exploded view of the overall structure of this utility model;

[0013] Figure 3 This is a cross-sectional view of the internal structure of this utility model;

[0014] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0015] Reference numerals: 1. Supporting main board; 11. Sealing frame; 2. Medium-hardness silicone foam; 21. First placement slot; 22. Second placement slot; 23. Rubber strip; 3. Closed-cell silicone foam; 31. Cross-shaped positioning slot; 32. Cross-shaped positioning block. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0017] Reference Appendix Figure 1 ,exist Figure 1 In the diagram, 'a' points to the front view and 'b' points to the right-side view. These views are only used to understand the scheme.

[0018] Please see Figure 1-4This utility model provides a technical solution: a silicone foam insulation board for new energy batteries, including a supporting main board 1, and sealing frames 11 are fixedly installed on both the left and right sides of the supporting main board 1 near the edge.

[0019] The left and right sides of the mainboard 1 are symmetrically fixed with a buffer mechanism that reduces the buffering force between the batteries while keeping them warm.

[0020] In this embodiment, after the insulation board is placed between the batteries on both sides, the cooperation between the buffer mechanism and the sealing frame 11 improves the heat insulation effect of the batteries and strengthens the buffering effect of the batteries on both sides. Thus, the insulation board improves the heat insulation effect while also strengthening the buffering effect of the batteries on both sides.

[0021] Specifically, the cushioning mechanism includes a medium-hardness silicone foam 2, a rubber strip 23, a closed-cell silicone foam 3, and a grid-shaped positioning block 32. The medium-hardness silicone foam 2 is glued to the left side of the supporting main board 1. The medium-hardness silicone foam 2 is movably engaged with the sealing frame 11. A first placement slot 21 is provided on the right side of the medium-hardness silicone foam 2, and a second placement slot 22 is provided on the left side of the supporting main board 1. The rubber strip 23 is movably engaged in the first placement slot 21, and the end of the rubber strip 23 away from the medium-hardness silicone foam 2 is movably engaged with the second placement slot 22. The closed-cell silicone foam 3 is glued to the left side of the medium-hardness silicone foam 2. A grid-shaped positioning slot 31 is provided on the left side of the medium-hardness silicone foam 2. The grid-shaped positioning block 32 is fixedly installed on the right side of the closed-cell silicone foam 3, and the grid-shaped positioning block 32 is movably engaged with the grid-shaped positioning slot 31.

[0022] In this embodiment, the internal structure of the buffer mechanism not only improves the heat preservation effect on both sides of the battery, but also enhances the buffering effect.

[0023] Specifically, the thickness of the sealing frame 11 is greater than the thickness of the medium-hardness silicone foam 2.

[0024] In this embodiment, the closed-cell silicone foam 3 and the supporting main board 1 are in a relatively sealed space under the cooperation of the sealing frame 11.

[0025] Specifically, there are multiple first placement slots 21, second placement slots 22, and rubber strips 23. These multiple first placement slots 21, second placement slots 22, and rubber strips 23 are arranged linearly and evenly between the support main board 1 and the medium-hardness silicone foam 2.

[0026] In this embodiment, multiple first placement slots 21, second placement slots 22, and rubber strips 23 are used to improve the buffering of the batteries on both sides.

[0027] Specifically, the first placement slot 21 and the horizontal slot in the grid-shaped positioning slot 31 are designed to be staggered.

[0028] In this embodiment, the medium-hardness silicone foam 2 is prevented from being too thin in some places, which would result in poor cushioning performance.

[0029] In use, multiple rubber strips 23 are inserted into their corresponding first placement slots 21. The medium-hardness silicone foam 2 is then glued to the support mainboard 1. The end of the rubber strip 23 furthest from the medium-hardness silicone foam 2 is inserted into the second placement slot 22 to position the medium-hardness silicone foam 2. At this point, the medium-hardness silicone foam 2 is engaged with the sealing frame 11. Closed-cell silicone foam 3 is then glued to the medium-hardness silicone foam 2. The closed-cell silicone foam 3 is positioned by engaging the grid-shaped positioning slot 31 with the grid-shaped positioning block 32. Similarly, the installation principle of the other buffer mechanism is the same. The insulation board is placed between the batteries on both sides. When the batteries on both sides dissipate heat, the heat transfer is reduced because the pores within the closed-cell silicone foam 3 are not interconnected. Simultaneously, with the cooperation of the sealing frame 11, the space between the closed-cell silicone foam 3 and the support mainboard 1 is relatively sealed, further reducing heat transfer. The transfer of heat to the outside environment increases the thermal insulation effect of the closed-cell silicone foam 3 on both sides. When the batteries on both sides of the new energy vehicle are subjected to different degrees of vibration and impact during driving, the good elasticity of the foam effectively reduces the vibration and impact on the batteries. At the same time, multiple rubber strips 23 are set between the medium-hardness silicone foam 2 on both sides and the supporting main board 1. The rubber strips 23 themselves are elastic, so they can effectively absorb and disperse the vibration and impact on the batteries. Through the cooperation between the medium-hardness silicone foam 2 on both sides and their corresponding rubber strips 23, the buffering effect on the batteries on both sides is enhanced. The insulation board as a whole not only improves the thermal insulation effect but also enhances the buffering effect on the batteries on both sides, so that the electrode material and current collector inside the battery can maintain a good contact state. This will keep the internal resistance of the battery stable or reduce it, thereby reducing energy loss and improving charging and discharging efficiency, among other positive effects.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A silicone foam insulation board for new energy batteries, comprising a supporting main board (1), characterized in that: Sealing frames (11) are fixedly installed on both sides of the main support board (1) near the edge; The supporting motherboard (1) is symmetrically fixed on both the left and right sides with a buffer mechanism that reduces the buffering force between batteries while keeping the temperature warm.

2. The silicone foam insulation board for new energy batteries according to claim 1, characterized in that: The buffer mechanism includes a medium-hardness silicone foam (2), a rubber strip (23), a closed-cell silicone foam (3), and a grid-shaped positioning block (32). The medium-hardness silicone foam (2) is glued to the left side of the supporting main board (1). The medium-hardness silicone foam (2) is movably engaged with the sealing frame (11). A first placement slot (21) is provided on the right side of the medium-hardness silicone foam (2), and a second placement slot (22) is provided on the left side of the supporting main board (1). The rubber strip (23) is movably engaged with the second placement slot (32). In a placement slot (21), the end of the rubber strip (23) away from the medium-hardness silicone foam (2) is movably engaged with the second placement slot (22). The closed-cell silicone foam (3) is glued to the left side of the medium-hardness silicone foam (2). A grid-shaped positioning slot (31) is provided on the left side of the medium-hardness silicone foam (2). The grid-shaped positioning block (32) is fixedly installed on the right side of the closed-cell silicone foam (3). The grid-shaped positioning block (32) is movably engaged with the grid-shaped positioning slot (31).

3. The silicone foam insulation board for new energy batteries according to claim 2, characterized in that: The thickness of the sealing frame (11) is greater than the thickness of the medium-hardness silicone foam (2).

4. The silicone foam insulation board for new energy batteries according to claim 2, characterized in that: There are multiple first placement slots (21), second placement slots (22) and rubber strips (23). Multiple first placement slots (21), second placement slots (22) and rubber strips (23) are arranged linearly and uniformly between the support main board (1) and the medium-hardness silicone foam (2).

5. The silicone foam insulation board for new energy batteries according to claim 2, characterized in that: The first placement slot (21) and the horizontal slot in the grid-shaped positioning slot (31) are designed to be staggered.