Heat insulation pad for battery module of new energy automobile

Abstract

The utility model relates to a heat insulation pad for a battery module of a new energy automobile. The heat insulation pad comprises a main body part and an edge packaging part, the main body part comprises an aerogel layer, mica layers arranged on the two sides of the aerogel layer respectively, and connecting layers arranged between the mica layers on the two sides and the aerogel layer respectively; the connecting layer is made of flame-retardant double-faced adhesive tape; the edge packaging part comprises a flame-retardant adhesive tape layer for packaging the peripheral edge of the main body part; the aerogel layer and the mica layers on the two sides are directly connected through the flame-retardant double-faced adhesive tape, assembly is convenient, working efficiency is high, hot-pressing equipment is omitted, production cost is reduced, meanwhile, the main body part is directly packaged through the flame-retardant adhesive tape, manufacturing requirements are reduced, the percent of pass is high, gaps do not exist in the connecting position, and the heat insulation effect is good.

Description

Technical Field

[0001] This utility model relates to the field of heat insulation pad technology, and specifically to a heat insulation pad for a new energy vehicle battery module. Background Technology

[0002] With the rise of new energy vehicles, power batteries have also entered a period of rapid development. The safety and stability of new energy vehicles have always been a focus of attention. Therefore, improving the safety of new energy vehicles will be one of the key factors determining their rapid popularization. As the main component of the battery pack in new energy vehicles, improving the safety of the battery module is an important way to improve the overall safety of the vehicle. Battery modules are generally composed of a varying number of cells connected in series or parallel via conductive sheets. The module frame surrounds the battery and provides a fixing device for the module. Heat insulation pads are crucial components ensuring the safe operation of the automotive battery module.

[0003] For example, the existing technology CN218701819U discloses an aerogel heat insulation pad assembly structure, including a frame, an aerogel layer, a first mica layer, and a second mica layer; a first hot-melt layer is sandwiched between the aerogel layer and the first mica layer, with the upper and lower surfaces of the first hot-melt layer respectively attached to the lower surface of the first mica layer and the upper surface of the aerogel layer; a second hot-melt layer is sandwiched between the aerogel layer and the second mica layer, with the upper and lower surfaces of the second hot-melt layer respectively attached to the lower surface of the aerogel layer and the upper surface of the second mica layer; however, the existing technology has the following problems:

[0004] 1. Existing technology requires the use of hot-pressing equipment to encapsulate the aerogel layer using a hot-melt layer, and then the mica board is attached and fixed. This method not only increases the manufacturing cost but also reduces work efficiency.

[0005] 2. Existing technology also includes a frame, and during the production process, it is necessary to ensure that the upper surface of the first mica layer is in contact with the upper surface of the frame, and the lower surface of the second mica layer is in contact with the lower surface of the frame. This not only makes the processing difficult and the pass rate low, but also results in poor heat insulation due to the gap between the frame and the first and second mica layers. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a heat insulation pad for a new energy vehicle battery module.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a heat insulation pad for a new energy vehicle battery module, comprising a main body and an edge encapsulation part;

[0008] The main body includes an aerogel layer, mica layers disposed on both sides of the aerogel layer, and a connecting layer disposed between the mica layers on both sides and the aerogel layer; the connecting layer is made of flame-retardant double-sided adhesive.

[0009] The edge encapsulation section includes a flame-retardant tape layer that encapsulates the four edges of the main body.

[0010] Preferably, the flame-retardant tape layer is C-shaped, with its two sides bonded to the outer surfaces of the mica layers on both sides of the aerogel layer.

[0011] Preferably, the aerogel layer is an aerogel felt.

[0012] Preferably, the outer surface of the mica layer is further provided with at least two parallel double-sided adhesive strips.

[0013] Preferably, release paper is provided on the outer side of the non-drying double-sided adhesive.

[0014] Preferably, one end of the release paper is provided with an extension that facilitates tearing.

[0015] Preferably, the extension is integrally formed with the release paper.

[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] 1. This utility model directly uses flame-retardant double-sided adhesive to connect the aerogel layer and the mica layers on both sides, which not only makes assembly convenient and work efficiency high, but also eliminates the need for hot pressing equipment, simplifies the production process, and reduces production costs.

[0018] 2. This utility model directly encapsulates the main body with flame-retardant tape, which not only reduces manufacturing requirements and increases the pass rate, but also eliminates gaps at the joints and provides good heat insulation.

[0019] 3. This utility model not only helps to improve the heat insulation effect of new energy battery modules, but also prevents the spread of fire caused by abnormal fires between battery modules, thus preventing major accidents. Attached Figure Description

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0021] Appendix Figure 1 This is a schematic diagram of the structure of the heat insulation pad for the new energy vehicle battery module described in this utility model.

[0022] The components are: 1. Aerogel layer; 2. Mica layer; 3. Connecting layer; 4. Flame-retardant tape layer; 5. Self-drying double-sided adhesive; 6. Release paper; 7. Extension section. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Appendix Figure 1The heat insulation pad for the new energy vehicle battery module described in this utility model includes a main body and an edge encapsulation part;

[0025] The main body includes an aerogel layer 1, mica layers 2 respectively disposed on both sides of the aerogel layer 1, and a connecting layer 3 respectively disposed between the mica layers 2 on both sides and the aerogel layer 1; the connecting layer 3 is made of flame-retardant double-sided adhesive.

[0026] The edge sealing section includes a flame-retardant tape layer 4 that seals the four edges of the main body.

[0027] This utility model directly uses flame-retardant double-sided adhesive to connect the aerogel layer 1 and the mica layers 2 on both sides, which is not only convenient to assemble and highly efficient, but also eliminates the need for hot pressing equipment, reducing production costs. At the same time, the main body is directly sealed with flame-retardant tape, which not only reduces manufacturing requirements and results in a high pass rate, but also eliminates gaps at the joints and provides good heat insulation.

[0028] Furthermore, the flame-retardant tape layer 4 is C-shaped, with its two sides bonded to the outer surfaces of the mica layers 2 on both sides of the aerogel layer 1, which not only makes sealing convenient and quick but also provides a good sealing effect.

[0029] Furthermore, the thickness of the flame-retardant tape layer 4 is 0.1 mm to 0.15 mm.

[0030] Furthermore, the aerogel layer 1 is an aerogel felt, which facilitates assembly.

[0031] Furthermore, the thickness of the aerogel felt is 1 mm to 8 mm.

[0032] Furthermore, the thickness of the mica layer 2 is 0.2 mm to 2 mm.

[0033] Furthermore, the outer surface of the mica layer 2 is provided with at least two parallel double-sided adhesive strips 5 to facilitate fixed connection with the battery module.

[0034] Furthermore, the thickness of the non-drying double-sided adhesive 5 is 0.2 mm to 0.5 mm.

[0035] Furthermore, release paper 6 is provided on the outer side of the self-drying double-sided adhesive 5 to protect the self-drying double-sided adhesive 5 and prevent dust and other debris from affecting the adhesiveness of the self-drying double-sided adhesive 5.

[0036] Furthermore, one end of the release paper 6 is provided with an extension 7 for easy tearing, which makes it easy to peel the release paper 6 off the non-drying double-sided adhesive 5, making it convenient to use and improving work efficiency.

[0037] Furthermore, the extension 7 is integrally formed with the release paper 6, which facilitates manufacturing.

[0038] The heat insulation pad provided by the present invention has improved heat insulation and flame retardant performance and meets the heat insulation requirements at higher temperatures because both its main body and edge encapsulation part include an aerogel layer 1, a mica layer 2, and a flame retardant tape layer 4.

[0039] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A heat insulation pad for a new energy vehicle battery module, characterized in that: It includes a main body and an edge encapsulation part; The main body includes an aerogel layer, mica layers disposed on both sides of the aerogel layer, and a connecting layer disposed between the mica layers on both sides and the aerogel layer. The connecting layer is made of flame-retardant double-sided adhesive. The edge encapsulation section includes a flame-retardant tape layer that encapsulates the four edges of the main body.

2. The heat insulation pad for new energy vehicle battery modules according to claim 1, characterized in that: The flame-retardant tape layer is C-shaped, with its two sides bonded to the outer surfaces of the mica layers on both sides of the aerogel layer.

3. The heat insulation pad for new energy vehicle battery modules according to claim 2, characterized in that: The aerogel layer is an aerogel felt.

4. The heat insulation pad for a new energy vehicle battery module according to any one of claims 1-3, characterized in that: The outer surface of the mica layer is also provided with at least two parallel double-sided adhesive strips.

5. The heat insulation pad for a new energy vehicle battery module according to claim 4, characterized in that: Release paper is provided on the outer side of each of the non-drying double-sided adhesive tapes.

6. The heat insulation pad for a new energy vehicle battery module according to claim 5, characterized in that: One end of the release paper is provided with an extension that facilitates tearing.

7. The heat insulation pad for a new energy vehicle battery module according to claim 6, characterized in that: The extension is integrally formed with the release paper.

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