Flame-retardant sound-insulation non-woven felt for new energy automobile
By using composite structure and specific materials in the wool for new energy vehicles, the problem of poor fire and sound insulation effect of existing felt is solved, and good flame retardant and sound insulation effect is achieved, meeting the safety and noise reduction needs of new energy vehicles.
Patent Information
- Application Number
- CN202421606697.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-09
AI Technical Summary
Existing felts have weak fire resistance, are prone to combustibility and have poor sound insulation, which cannot meet the needs of use.
Flame-retardant and sound-insulated non-woven felt for new energy vehicles that adopt composite structures, including flame-retardant fabrics, flame-retardant pads, non-woven fabrics, felts, honeycomb core boards, sound-insulating pads, etc., the flame-retardant and sound-insulating performance are improved through the combination of flame-retardant layers, microencapsulated red phosphorus and aluminum silicate fibers.
It achieves a good flame retardant effect, avoids rapid combustion, and through the combination of honeycomb core plate and sound insulation pad, the sound insulation effect is significantly improved, meeting the fire protection and noise reduction needs of new energy vehicles.
Smart Images
Figure CN222959382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a flame-retardant and sound-insulating non-woven felt for new energy vehicles, in particular to a flame-retardant and sound-insulating non-woven felt for new energy vehicles, belonging to the technical field of felt. Background Technique
[0002] Felt is made of wool and processed by bonding. It is elastic and can be used as materials for shock absorption, sealing, gaskets and the bottom felt of elastic wire card clothing. It is applied to various industrial machinery - shock absorption, oil-impregnated lubrication, friction resistance and other industries. Felt is also commonly used in the new energy vehicle industry.
[0003] The felt of the prior art has the following disadvantages: 1. The fire prevention ability of the felt is weak, and it is easy to burn when contaminated with sparks, etc., causing property losses to people; 2. The sound insulation ability of the felt is weak, and the noise reduction effect on noise during use is weak, which does not meet the use requirements. Therefore, improvements are made to the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a flame-retardant and sound-insulating non-woven felt for new energy vehicles to solve the above problems. The cooperation of the flame-retardant layer a, the flame-retardant cloth a, microencapsulated red phosphorus, the flame-retardant pad, etc. can achieve a good flame-retardant effect; the cooperation of the flame-retardant pad, the honeycomb core board and the sound-insulating pad can achieve a good sound-insulating effect.
[0005] The utility model realizes the above purpose through the following technical solutions. A flame-retardant and sound-insulating non-woven felt for new energy vehicles includes a felt body. The felt body includes a flame-retardant cloth a, a flame-retardant pad, a non-woven fabric a, a felt, a honeycomb core board, a sound-insulating pad, a non-woven fabric b and a flame-retardant cloth b. A flame-retardant layer a is coated on the outer surface of the flame-retardant cloth a. Microencapsulated red phosphorus is arranged between the flame-retardant cloth a and the flame-retardant pad. The non-woven fabric a is bonded with the felt, the felt is bonded with the honeycomb core board, the honeycomb core board is located above the sound-insulating pad, the sound-insulating pad is located above the non-woven fabric b, the non-woven fabric b is bonded with the flame-retardant cloth b, and a flame-retardant layer b is coated on the flame-retardant cloth b.
[0006] Preferably, the materials of the flame-retardant layer a and the flame-retardant layer b are both high chlorinated polyethylene, and the material of the flame-retardant pad is aluminum silicate fiber.
[0007] Preferably, the flame-retardant cloth a includes a yarn a, a yarn b and a yarn c, and the yarn a is located on the left side of the yarn c.
[0008] Preferably, the yarn b is intertwined with the yarn c, and the material of the yarn b is aramid.
[0009] Preferably, the material of the yarn a is alumina fiber, and the material of the yarn c is nitrile chloroprene.
[0010] Preferably, the honeycomb core board is located between the felt and the sound insulation pad, and the sound insulation pad is made of aluminum silicate fiber.
[0011] Preferably, the flame retardant cloth a is located above the flame retardant pad, and the flame retardant pad is bonded with non-woven fabric a.
[0012] The beneficial effects of the present utility model are as follows:
[0013] 1. The cooperation of the flame retardant layer a, the flame retardant cloth a, the microencapsulated red phosphorus, the flame retardant pad, etc. can achieve a good flame retardant effect; the felt body is composed of the flame retardant cloth a, the flame retardant pad, the non-woven fabric a, the felt, the honeycomb core board, the sound insulation pad, the non-woven fabric b and the flame retardant cloth b. The surface of the flame retardant cloth a is coated with the flame retardant layer a, and the outer surface of the flame retardant layer b is coated with the flame retardant layer b. The materials of both the flame retardant layer a and the flame retardant layer b are high chlorinated polyethylene, which contains chlorine element and has excellent flame retardant performance, and can achieve a good flame retardant effect. The flame retardant cloth a and the flame retardant cloth b are both woven from yarn a, yarn b and yarn c. The material of yarn a is alumina fiber, which has good heat resistance stability, outstanding high temperature resistance performance, low thermal conductivity and heat capacity. The material of yarn b is aramid, and the limiting oxygen index (LOI) of aramid is greater than 28. Therefore, when it leaves the flame, it will not continue to burn, and it is a permanent flame retardant fiber. The material of yarn c is nitrile chloroprene, which is copolymerized from acrylonitrile monomer and vinyl compound containing flame retardant element, and has excellent flame retardant performance. And microencapsulated red phosphorus is provided between the flame retardant cloth a and the flame retardant pad. The continuous external combustion causes the wall of the microencapsulated red phosphorus to melt and rupture, releasing red phosphorus. The red phosphorus is decomposed by heat and can react with the oxygen in the surrounding air to generate oxygen-containing phosphoric acid. This oxygen-containing acid has good water absorption and can dehydrate and carbonize the felt body to form a carbonized layer. This can not only isolate the external oxygen, volatile combustibles and heat from the felt body, reduce the release of combustible volatile components, but also has heat absorption property, reduce the oxidation heat on the surface of the felt body, achieve condensed phase flame retardancy, and avoid the combustion of the felt body. The material of the flame retardant pad is aluminum silicate fiber, which has excellent heat insulation characteristics and good high temperature resistance. It can cooperate with the flame retardant layer, the flame retardant cloth, the microencapsulated red phosphorus and the flame retardant pad to achieve a good flame retardant and heat insulation effect and avoid its rapid combustion.
[0014] 2. The flame retardant pad, honeycomb core board and sound insulation pad cooperate to achieve a good sound insulation effect; the material of the flame retardant pad is aluminosilicate fiber, which has excellent heat insulation characteristics and good sound absorption performance. It can absorb more than 80% of medium and high waves above 500 Hz. The bottom end of the felt is bonded with a honeycomb core board, which is divided into numerous closed small chambers. The middle sandwich contains a large amount of air, which blocks the air flow, hinders the sound wave, and improves the sound absorption coefficient. The material of the sound insulation pad is polyester fiber sound absorption cotton, which is composed of ultra-fine polyester fibers and has a three-dimensional network porous structure. The average fineness of the fibers can reach below 1-2 microns, which can make it have more interconnected pores. Under the action of friction loss, etc., its sound energy is converted into heat energy, so that the sound is effectively suppressed. The flame retardant pad, honeycomb core board and sound insulation pad can cooperate to achieve a good sound insulation effect. Brief Description of the Drawings
[0015] Figure 1 It is a schematic structural diagram of the whole of the present utility model;
[0016] Figure 2 It is a schematic structural diagram of a partial cross-section of the felt body of the present utility model;
[0017] Figure 3 It is a schematic structural diagram of a partial cross-section of the top view of the honeycomb core board of the present utility model;
[0018] Figure 4 It is a schematic structural diagram of the flame retardant cloth of the present utility model.
[0019] In the figure: 1. Felt body; 2. Flame retardant layer a; 3. Flame retardant cloth a; 4. Microencapsulated red phosphorus; 5. Flame retardant pad; 6. Non-woven fabric a; 7. Felt; 8. Honeycomb core board; 9. Sound insulation pad; 10. Non-woven fabric b; 11. Flame retardant cloth b; 12. Flame retardant layer b; 13. Yarn a; 14. Yarn b; 15. Yarn c. Detailed Description of the Preferred Embodiments
[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0021] Example 1 Please refer to Figures 1-4As shown in the figure, a flame-retardant and sound-insulating non-woven felt for new energy vehicles includes a felt body 1. The felt body 1 includes a flame-retardant cloth a3, a flame-retardant pad 5, a non-woven cloth a6, a felt 7, a honeycomb core board 8, a sound-insulating pad 9, a non-woven cloth b10, and a flame-retardant cloth b11. The felt body 1 is composed of a flame-retardant cloth a3, a flame-retardant pad 5, a non-woven cloth a6, a felt 7, a honeycomb core board 8, a sound-insulating pad 9, a non-woven cloth b10, and a flame-retardant cloth b11. A flame-retardant layer a2 is coated on the outer surface of the flame-retardant cloth a3. Microencapsulated red phosphorus 4 is provided between the flame-retardant cloth a3 and the flame-retardant pad 5. The non-woven cloth a6 is bonded to the felt 7, and the felt 7 is bonded below the non-woven cloth a6. The felt 7 is bonded to the honeycomb core board 8. The honeycomb core board 8 is located above the sound-insulating pad 9. The sound-insulating pad 9 has a good sound-insulating effect. The sound-insulating pad 9 is located above the non-woven cloth b10. The non-woven cloth b10 is bonded to the flame-retardant cloth b11. The flame-retardant cloth b11 is coated with a flame-retardant layer b12. The flame-retardant cloth b11 and the flame-retardant layer b12 have a good flame-retardant effect.
[0022] Specifically, the materials of the flame-retardant layer a2 and the flame-retardant layer b12 are both high chlorinated polyethylene, and the flame-retardant layer a2 and the flame-retardant layer b12 have a good flame-retardant effect. The material of the flame-retardant pad 5 is aluminum silicate fiber.
[0023] Specifically, the yarn b14 is interwoven with the yarn c15. The material of the yarn b14 is aramid, and the yarn b14 can have a good flame-retardant effect.
[0024] Specifically, the material of the yarn a13 is alumina fiber, and the yarn a13 has a good flame-retardant effect. The material of the yarn c15 is nitrile chloroprene.
[0025] Specifically, the honeycomb core board 8 is located between the felt 7 and the sound-insulating pad 9, and the honeycomb core board 8 can have a sound-insulating effect. The material of the sound-insulating pad 9 is aluminum silicate fiber.
[0026] Specifically, the flame-retardant cloth a3 is located above the flame-retardant pad 5. Microencapsulated red phosphorus is provided between the flame-retardant cloth a3 and the flame-retardant pad 5. The flame-retardant pad 5 is bonded to the non-woven cloth a6.
[0027] Example 2: Please refer to Figures 1-2 , the difference between this example and Example 1 is that: the flame-retardant cloth a3 includes a yarn a13, a yarn b14, and a yarn c15. Both the flame-retardant cloth a3 and the flame-retardant cloth b11 are woven from the yarn a13, the yarn b14, and the yarn c15. The yarn a13 is located on the left side of the yarn c15.
[0028] When the utility model is in use, the felt body 1 is composed of a flame-retardant cloth a3, a flame-retardant pad 5, a non-woven fabric a6, a felt 7, a honeycomb core board 8, a sound insulation pad 9, a non-woven fabric b10 and a flame-retardant cloth b11. A flame-retardant layer a2 is coated on the surface of the flame-retardant cloth a3, and a flame-retardant layer b12 is coated on the outer surface of the flame-retardant layer b12. The materials of the flame-retardant layer a2 and the flame-retardant layer b12 are both high chlorinated polyethylene, which contains chlorine elements and has excellent flame-retardant properties, and can achieve a good flame-retardant effect. The flame-retardant cloth a3 and the flame-retardant cloth b11 are both woven from a yarn a13, a yarn b14 and a yarn c15. The material of the yarn a13 is alumina fiber, which has good heat stability, outstanding high-temperature resistance, low thermal conductivity and heat capacity. The material of the yarn b14 is aramid, and the limiting oxygen index (LOI) of aramid is greater than 28. Therefore, when it leaves the flame, it will not continue to burn, and it is a permanent flame-retardant fiber. The material of the yarn c15 is nitrile chloroprene, which is copolymerized from acrylonitrile monomer and vinyl compound containing flame-retardant elements and has excellent flame-retardant properties. A microencapsulated red phosphorus 4 is arranged between the flame-retardant cloth a3 and the flame-retardant pad 5. The continuous combustion outside causes the wall of the microencapsulated red phosphorus 4 to melt and break, releasing red phosphorus. The red phosphorus is decomposed by heat and can react with oxygen in the surrounding air to generate oxygen-containing phosphoric acid. This oxygen-containing acid has good water absorption and can dehydrate and carbonize the felt body 1 to form a carbonized layer. In this way, not only can the external oxygen, volatile combustibles and heat be isolated from the felt body 1, reducing the release of combustible volatile components, but also it has heat absorption, reducing the oxidation heat on the surface of the felt body 1, realizing condensed-phase flame retardancy and avoiding the combustion of the felt body 1. The material of the flame-retardant pad 5 is aluminosilicate fiber, which has excellent heat insulation characteristics and good high-temperature resistance. It can cooperate with the flame-retardant layer, the flame-retardant cloth, the microencapsulated red phosphorus 4 and the flame-retardant pad 5 to achieve a good flame-retardant and heat-insulating effect and avoid its rapid combustion. The material of the flame-retardant pad 5 is aluminosilicate fiber, which has excellent heat insulation characteristics and good sound absorption. It can absorb more than 80% of medium and high waves above 500 Hz. The bottom end of the felt 7 is bonded with a honeycomb core board 8. The honeycomb core board 8 is divided into many closed small chambers, and a large amount of air is contained in the middle interlayer, which prevents air flow, hinders sound waves and improves the sound absorption coefficient. The material of the sound insulation pad 9 is polyester fiber sound-absorbing cotton. The polyester fiber sound-absorbing cotton is composed of ultra-fine polyester fibers and has a three-dimensional network porous structure. The average fineness of the fibers can reach below 1-2 microns, which can make it have more interconnected pores. Under the action of friction loss and the like, its sound energy is converted into heat energy, thereby effectively suppressing the sound. It can cooperate with the flame-retardant pad 5, the honeycomb core board 8 and the sound insulation pad 9 to achieve a good sound insulation effect.
[0029] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
[0030] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A flame retardant and sound insulating nonwoven felt for new energy vehicles, comprising a felt body (1), characterized in that: The felt body (1) comprises a flame retardant cloth a (3), a flame retardant pad (5), a non-woven fabric a (6), a felt (7), a honeycomb core plate (8), a sound insulation pad (9), a non-woven fabric b (10) and a flame retardant cloth b (11); the outer surface of the flame retardant cloth a (3) is coated with a flame retardant layer a (2); microencapsulated red phosphorus (4) is provided between the flame retardant cloth a (3) and the flame retardant pad (5); the non-woven fabric a (6) is bonded with a felt (7); the felt (7) is bonded with a honeycomb core plate (8); the honeycomb core plate (8) is located above the sound insulation pad (9); the sound insulation pad (9) is located above the non-woven fabric b (10); the non-woven fabric b (10) is bonded with a flame retardant cloth b (11); and the flame retardant cloth b (11) is coated with a flame retardant layer b (12).
2. The flame-retardant and sound-insulating non-woven felt for new energy vehicles according to claim 1, characterized in that: The flame retardant layer a (2) and the flame retardant layer b (12) are both made of highly chlorinated polyethylene, and the flame retardant pad (5) is made of aluminum silicate fiber.
3. The flame-retardant and sound-insulating non-woven felt for new energy vehicles according to claim 1, characterized in that: The flame retardant cloth a (3) comprises yarn a (13), yarn b (14) and yarn c (15), wherein the yarn a (13) is located on the left side of the yarn c (15).
4. The flame-retardant and sound-insulating non-woven felt for new energy vehicles according to claim 3, characterized in that: The yarn b (14) is interwoven with the yarn c (15), and the material of the yarn b (14) is aramid.
5. The flame-retardant and sound-insulating non-woven felt for new energy vehicles according to claim 3, characterized in that: The material of the yarn a (13) is alumina fiber, and the material of the yarn c (15) is nitrile fiber.
6. The flame-retardant and sound-insulating non-woven felt for new energy vehicles according to claim 1, characterized in that: The honeycomb core plate (8) is located between the felt (7) and the sound insulation pad (9), and the sound insulation pad (9) is made of aluminum silicate fiber.
7. The flame-retardant and sound-insulating non-woven felt for new energy vehicles according to claim 1, characterized in that: The flame retardant cloth a (3) is located above the flame retardant pad (5), and the flame retardant pad (5) is bonded with a non-woven cloth a (6).