Fire-resistant soundproof cotton for electric appliances

Abstract

The utility model discloses a kind of fire-resistant sound insulation cotton for electric appliance, belong to sound insulation cotton technical field, including ceramic fiber cotton layer, the inside of ceramic fiber cotton layer is equipped with aviation cotton layer, the inside of aviation cotton layer is equipped with biological base coffee cotton layer, ceramic fiber cotton layer, aviation cotton layer, biological base coffee cotton layer are equipped with multiple through holes mutually aligned in, connecting piece is equipped in the through hole, connecting piece in the utility model not only can make ceramic fiber cotton layer, aviation cotton layer, biological base coffee cotton layer be connected with each other, but also can strengthen the sound-absorbing effect of ceramic fiber cotton layer, aviation cotton layer, biological base coffee cotton layer, adhesive layer can also improve the convenience of the utility model.

Description

Technical Field

[0001] This utility model relates to the field of sound insulation cotton technology, specifically to a fire-resistant sound insulation cotton for electrical appliances. Background Technology

[0002] Sound insulation cotton is a sound-absorbing and noise-reducing product with fiber or foam material as its core. It achieves sound wave energy conversion and propagation blocking through physical structural design and is widely used in construction, transportation, industry and other fields. Its core principle is based on the absorption of sound waves by porous media—after sound waves enter the interior of the material, they undergo friction and vibration in the pores, ultimately converting sound energy into heat energy, thereby achieving a sound insulation effect.

[0003] Sound insulation cotton for electrical appliances must meet stringent special requirements: First, it must have wide temperature range tolerance and maintain structural stability at extreme temperatures ranging from -40℃ to 200℃, avoiding high-temperature softening or low-temperature brittleness; it must use halogen-free flame retardants and not release toxic fumes when burning.

[0004] Among existing sound insulation cotton, the sound insulation cotton with the best sound insulation effect cannot achieve the best fire resistance, and the sound insulation cotton with the best fire resistance may not achieve the best sound insulation effect. Therefore, a composite sound insulation cotton structure is needed that can take into account both fire resistance and sound insulation effect, and improve the fire resistance of the sound insulation cotton without affecting the sound insulation effect. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a fire-resistant sound insulation cotton for electrical appliances.

[0006] The technical solution of this utility model is: a fire-resistant sound insulation cotton for electrical appliances, including a ceramic fiber cotton layer, an aviation cotton layer on the inner side of the ceramic fiber cotton layer, a bio-based coffee cotton layer on the inner side of the aviation cotton layer, and a plurality of mutually aligned through holes in the ceramic fiber cotton layer, the aviation cotton layer, and the bio-based coffee cotton layer, with connectors provided in the through holes.

[0007] Furthermore, the connector includes a connecting rod, the inner end of which is fixed with a limiting piece, the outer side of which is provided with a sound-absorbing hole, the outer wall of which is provided with a plurality of sound-transmitting holes, and the outer wall of the outer end of the connecting rod is provided with a limiting cap.

[0008] Explanation: Sound passes through the sound-absorbing holes of the connecting rod, and then through the sound-permeable holes into the ceramic fiber cotton layer, aviation cotton layer, and bio-based coffee cotton layer, thus improving the sound absorption effect.

[0009] Furthermore, the connector has an adhesive layer on its inner side, and a protective film is provided on the inner side of the adhesive layer.

[0010] Instructions: When using, peel off the protective film and attach it to the inner wall of the appliance casing using the adhesive layer, which improves the ease of use.

[0011] Furthermore, an alumina film is bonded to the outer side of the ceramic fiber cotton layer, and the alumina film has a plurality of large holes aligned with the through holes and small holes for sound absorption.

[0012] Note: Alumina film can effectively improve fire resistance. After sound passes through the small holes, the sound energy is absorbed by the ceramic fiber cotton layer, aviation cotton layer, and bio-based coffee cotton layer, which can effectively improve the sound absorption effect.

[0013] Furthermore, the outer side of the alumina film is coated with a graphene nano-ceramic coating.

[0014] Note: Graphene nano-ceramic coating can effectively improve the insulation performance of alumina film, preventing electrical short circuits or arcing caused by high voltage and alumina film.

[0015] The beneficial effects of this utility model are:

[0016] The ceramic fiber cotton layer of this invention has high fire resistance, which greatly improves the fire resistance of the sound insulation cotton. The connector in this invention can not only connect the ceramic fiber cotton layer, the aviation cotton layer, and the bio-based cotton layer, but also enhance the sound absorption effect of the ceramic fiber cotton layer, the aviation cotton layer, and the bio-based cotton layer. The adhesive layer can also improve the ease of use of this invention. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 This is a surface distribution diagram of the macropores and micropores of the alumina film of this utility model.

[0020] Among them, 1-ceramic fiber cotton layer, 2-aviation cotton layer, 3-bio-based coffee cotton layer, 4-through hole, 5-connector, 51-connecting rod, 52-limiting piece, 53-sound absorption hole, 54-sound transmission hole, 55-limiting cap, 6-adhesive layer, 8-alumina film, 81-large hole, 82-small hole, 9-graphene nano-ceramic coating. Detailed Implementation

[0021] Example 1:

[0022] like Figure 1 As shown, a fire-resistant sound insulation cotton for electrical appliances includes a ceramic fiber cotton layer 1, an aviation cotton layer 2 on the inner side of the ceramic fiber cotton layer 1, a bio-based cotton layer 3 on the inner side of the aviation cotton layer 2, and multiple interconnected through holes 4 in the ceramic fiber cotton layer 1, the aviation cotton layer 2, and the bio-based cotton layer 3, with connectors 5 inside the through holes 4.

[0023] Among them, ceramic fiber cotton layer 1, aviation cotton layer 2, and bio-based coffee cotton layer 3 all use materials with existing technology. For example, ceramic fiber cotton layer 1 uses ceramic fiber cotton material, aviation cotton layer 2 is made of ultra-fine glass fiber, and bio-based coffee cotton layer 3 uses bio-based coffee cotton material. All of the above materials are commercially available products.

[0024] like Figure 2 As shown, the connector 5 includes a connecting rod 51, a limiting piece 52 is fixed at the inner end of the connecting rod 51, a sound-absorbing hole 53 is provided on the outer side of the connecting rod 51, a plurality of sound-permeable holes 54 are provided on the outer wall of the sound-absorbing hole 53, and a limiting cap 55 is provided on the outer wall of the outer end of the connecting rod 51.

[0025] The sound passes through the sound-absorbing hole 53 of the connecting rod 51, and then through the sound-transmitting hole 54 into the ceramic fiber cotton layer 1, the aviation cotton layer 2, and the bio-based cotton layer 3, thereby improving the sound absorption effect.

[0026] Example 2:

[0027] The difference between this embodiment and embodiment 1 is that the inner side of the connector 5 is provided with an adhesive layer 6, and the inner side of the adhesive layer 6 is provided with a protective film 7.

[0028] The adhesive layer 6 uses 3M double-sided adhesive, and the protective film 7 uses polyethylene release film.

[0029] Compared to Example 1, in this embodiment, the protective film 7 is peeled off and bonded to the inner wall of the appliance casing by the adhesive layer 6, which improves the convenience of use.

[0030] Example 3:

[0031] The difference between this embodiment and embodiment 2 is, for example... Figure 3 As shown, in this embodiment, an alumina film 8 is bonded to the outer side of the ceramic fiber cotton layer 1. The alumina film 8 has a plurality of large holes 81 aligned with the through holes and small holes 82 for sound absorption.

[0032] Compared with Example 2, in this embodiment, the alumina film 8 can effectively improve the fire resistance. After the sound passes through the small holes, the sound energy is absorbed by the ceramic fiber cotton layer 1, the aviation cotton layer 2, and the bio-based cotton layer 3, which can effectively improve the sound absorption effect.

[0033] Example 4:

[0034] The difference between this embodiment and Embodiment 3 is that, in this embodiment, the outer side of the alumina film 8 is coated with a graphene nano-ceramic coating 9. The graphene nano-ceramic coating 9 is formed by spraying commercially available graphene nano-ceramic paint.

[0035] Compared to Example 3, in this embodiment, the graphene nano-ceramic coating 9 can effectively improve the insulation performance of the alumina film 8, preventing electrical short circuits or arcing caused by high voltage and the alumina film.

[0036] The working principle of the above embodiment 4:

[0037] The noise generated by the electrical appliance is absorbed by the ceramic fiber cotton layer 1, aviation cotton layer 2, and bio-based coffee cotton layer 3 after passing through the small holes 82 on the alumina film 8. Some of the sound enters the sound absorption hole 53 after passing through the large hole 81, and then is absorbed by the ceramic fiber cotton layer 1, aviation cotton layer 2, and bio-based coffee cotton layer 3 through the sound transmission hole 54. When in use, the protective film 7 is peeled off and the adhesive layer 6 is glued to the inner wall of the appliance shell. The graphene nano-ceramic coating 9 can effectively improve the insulation performance of the alumina film 8 and prevent short circuits or electric arcs caused by high voltage and the alumina film 8.

Claims

1. A fire-resistant sound insulation cotton for electrical appliances, characterized in that, It includes a ceramic fiber cotton layer (1), an aviation cotton layer (2) is provided on the inner side of the ceramic fiber cotton layer (1), a bio-based coffee cotton layer (3) is provided on the inner side of the aviation cotton layer (2), and a plurality of mutually aligned through holes (4) are provided in the ceramic fiber cotton layer (1), the aviation cotton layer (2) and the bio-based coffee cotton layer (3), and a connector (5) is provided in the through holes (4).

2. The fire-resistant sound insulation cotton for electrical appliances as described in claim 1, characterized in that, The connector (5) includes a connecting rod (51), with a limiting piece (52) fixed at the inner end of the connecting rod (51), a sound-absorbing hole (53) on the outer side of the connecting rod (51), a plurality of sound-permeable holes (54) on the outer wall of the sound-absorbing hole (53), and a limiting cap (55) on the outer wall of the outer end of the connecting rod (51).

3. The fire-resistant sound insulation cotton for electrical appliances as described in claim 1, characterized in that, The connector (5) has an adhesive layer (6) on its inner side, and a protective film (7) is provided on the inner side of the adhesive layer (6).

4. The fire-resistant sound insulation cotton for electrical appliances as described in claim 1, characterized in that, An alumina film (8) is bonded to the outside of the ceramic fiber cotton layer (1). The alumina film (8) has a plurality of large holes (81) aligned with the through holes and small holes (82) for sound absorption.

5. The fire-resistant sound insulation cotton for electrical appliances as described in claim 4, characterized in that, The outer side of the alumina film (8) is coated with a graphene nano-ceramic coating (9).

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