CN217628213U

CN217628213U - Compound insulating fire damper

Info

Publication number: CN217628213U
Application number: CN202221641502.9U
Authority: CN
Inventors: 欧阳松; 谷劲柏
Original assignee: Shenzhen Safest Electronic Materials Co ltd
Current assignee: Shenzhen Safest Electronic Materials Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-21
Anticipated expiration: 2032-06-29

Abstract

The utility model belongs to the technical field of the electronic and electrical engineering, concretely relates to compound insulating fire damper, compound insulating fire damper includes insulating fire-retardant composite film material layer, glass fiber material layer, pastes the layer and leaves the type ply, insulating fire-retardant composite film material layer, glass fiber material layer, paste the layer and set gradually from the type ply from top to bottom, insulating fire-retardant composite film material layer is as an organic whole with the compounding of glass fiber material layer, paste the layer and paste the downside on the glass fiber material layer, it pastes the downside on pasting the layer from the type ply. The utility model discloses a compound insulating fire damper uses nontoxic fire retardant, and economy environmental protection again, and fire-retardant fireproof effect is good, and the softness is laminated easily, does not have the metal to reveal the limit and leads to the potential safety hazard of electric leakage, does not have the influence to electronic apparatus's EMC, makes electronic apparatus stable performance.

Description

Compound insulating fire damper

Technical Field

The utility model belongs to the technical field of the electronic and electrical engineering, concretely relates to compound insulating fire damper.

Background

In the information era of rapid development, the national innovation strategy provides a strong driving force for the industry of electronic and electrical products, so that various electronic and electrical products in the market are endless, and benefit the mankind to a great extent. According to the national standard GB8898-2011 edition "audio, video and similar electronic equipment safety requirements" (the equivalent adopts the international electrotechnical commission standard IEC 60065, 2005 edition 7.1 standard), chapter 20 "fire prevention" requires that manufacturers must adopt the following three technical measures to prevent the fire inside the machine and the spread of the fire and not to cause the fire danger to the surrounding of the product:

1. the potential ignition source, namely the ignition point, is prevented from being generated in the machine; however, the switch power supply circuits adopted by many electronic and electric products have potential ignition sources objectively, which is inevitable, and this measure is not feasible.

2. Use of a fire-resistant protective enclosure to limit flame spread; however, the cost of directly using the fireproof protective shell is too high, and the fire retardant is toxic and harmful, and conflicts with the requirement of environmental protection, so the measure is not advisable.

3. The parts adjacent to the potential ignition source (e.g., the housing) use a flame retardant material.

Due to the demand of increasingly ultra-thin appearance and modeling structures of electronic and electrical products, the distance between a plurality of potential ignition sources in the built-in circuit board and adjacent parts, such as a plastic rear shell, cannot meet the fire-proof spacing requirement (the upper part is more than or equal to 50 mm, and the periphery is more than or equal to 13 mm) specified in the safety standard, and therefore a flame-retardant shell is required to be used. The fire-proof interval specified by the standard is only the most basic fire-proof requirement, the requirement of meeting the fire-proof interval standard only can reduce or delay the occurrence of fire and cannot stop the occurrence of fire accidents, so in order to prevent the possibility of fire danger to the maximum extent, even if the requirement of meeting the basic fire-proof interval of safety regulation, the fire-retardant shell is ensured to be flame-retardant and the corresponding requirement of flame-retardant grade is still necessary.

In addition, patent No. ZL 201721826401.8 discloses an insulating type fire damper composite structure, which has a good fire-proof effect, but has an influence on EMC of electronic and electric appliances, resulting in unstable performance of the electronic and electric appliances; the fireproof layer of the baffle is made of a metal aluminum composite material, the metal aluminum composite material layer and the insulating flame-retardant composite film material layer are compounded to easily cause electric leakage due to aluminum exposed edges, potential safety hazards exist, the metal aluminum is difficult to attach due to the fact that the metal aluminum is harder, particularly, the metal aluminum is difficult to attach to a different-shaped structure, and the using effect is influenced; therefore, how to overcome the above technical problems and disadvantages is an important problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, and provide one kind and can prevent the electronic appliance product because of the built-in latent ignition source fire and the compound insulating fire damper who ignites plastic casing, this baffle uses nontoxic fire retardant, economy environmental protection again, and fire-retardant fireproof effect is good, and the softness is laminated easily, does not have the metal exposed edge and leads to the potential safety hazard of electric leakage, does not have the influence to the EMC of electronic apparatus, makes electronic apparatus stable performance.

The purpose of the utility model is realized like this: the utility model provides a compound insulating fire damper, includes insulating fire-retardant composite film material layer, glass fiber material layer, pastes the layer and leaves the type ply, insulating fire-retardant composite film material layer, glass fiber material layer, paste the layer and set gradually from the type ply from top to bottom, insulating fire-retardant composite film material layer is as an organic whole with the glass fiber material layer is compound, paste the layer and paste the downside on glass fiber material layer, it pastes the downside on pasting the layer to leave the type ply.

Furthermore, the insulating flame-retardant composite film material layer is formed by compounding a non-toxic flame retardant and insulating silicon rubber.

Further, the thickness of the insulating flame-retardant composite film material layer is 0.08 to 0.20 mm. The insulation resistance of the insulating flame-retardant composite thin film material layer is larger than or equal to 100M omega (the standard requirement is larger than or equal to 4M omega), and the breakdown voltage is larger than or equal to 6 KV (the standard requirement is larger than or equal to 3 KV).

Further, the glass fiber material layer is glass fiber cloth.

Further, the thickness of the glass fiber material layer is 0.04 to 0.25 mm.

Further, the adhesive layer is a pressure-sensitive adhesive layer.

Further, the release paper layer is white silicon paper, yellow silicon paper, coated paper, glassine paper or PET release film. The adhesive layer is conveniently protected when not in use, and only the release paper layer is directly torn off when in use.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a compound insulating fire damper, flame retardant coating adopt glass fiber material, make it last burn more than 60 minutes not to open fire, not perforate, meet can form the one deck protection after the fire and separate the fire bed, the interval that is far superior to ann rule standard regulation burns the cubic accumulative time and is 3 minutes 10 seconds's requirement, improves the fire-retardant fire prevention effect of baffle.

2. The utility model discloses a compound insulating fire damper, flame retardant coating adopt glass fiber material, make fire damper not have the influence to electron electrical apparatus's EMC, make electron electrical apparatus stable performance.

3. The utility model discloses a compound insulating fire damper, flame retardant coating adopt glass fiber material, and the metal exposure limit can not appear in the glass fiber material layer with the insulating layer complex, just also do not exist because of the metal exposes the potential safety hazard that the limit leads to the electric leakage.

4. The utility model discloses a compound insulating fire damper, flame retardant coating adopt glass fiber material, and glass fiber material is soft, hardness is lower, makes fire damper laminate more easily.

5. The utility model discloses a compound insulating fire damper, insulating fire-retardant composite film material layer are formed by nontoxic fire retardant and insulating silicon rubber complex, use nontoxic fire retardant, and rather than with high costs and poisonous bromine system fire retardant, economy environmental protection again, but the fire prevention guard board of the electronic appliances product plastic casing of family expenses and similar usage (like car, new forms of energy, electron, electrical apparatus, aerospace etc.) extensively.

Drawings

Fig. 1 is a schematic structural view of the composite insulating fire damper of the present invention.

In the figure: 1-an insulating flame-retardant composite film material layer, 2-a glass fiber material layer, 3-a sticking layer and 4-a release paper layer.

Detailed Description

The composite insulating fire barrier of the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1, a compound insulating fire damper, includes insulating fire-retardant composite film material layer 1, glass fiber material layer 2, pastes layer 3 and leaves type ply 4, insulating fire-retardant composite film material layer 1, glass fiber material layer 2, paste layer 3 and set gradually from type ply 4 from top to bottom, insulating fire-retardant composite film material layer 1 is as an organic whole with glass fiber material layer 2 is compound, paste layer 3 and paste the downside at glass fiber material layer 2, it pastes the downside at pasting layer 3 to leave type ply 4.

Further, the insulating flame-retardant composite film material layer 1 is formed by compounding a non-toxic flame retardant and insulating silicon rubber; the nontoxic flame retardant can be selected from inorganic flame retardants such as aluminum dioxide and aluminum hydroxide.

Further, the thickness of the insulating flame-retardant composite film material layer 1 is 0.08 to 0.20 mm. The insulation resistance of the insulating flame-retardant composite thin film material layer 1 is not less than 100M omega (the standard requirement is not less than 4M omega), and the breakdown voltage is not less than 6 KV (the standard requirement is not less than 3 KV).

Further, the glass fiber material layer 2 is glass fiber cloth.

Further, the thickness of the glass fiber material layer 2 is 0.04 to 0.25 mm.

Further, the adhesive layer 3 is a pressure sensitive adhesive layer.

Further, the release paper layer 4 is white silicon paper, yellow silicon paper, coated paper, glassine paper or a PET release film. The adhesive layer 3 is conveniently protected when not in use, and the release paper layer 4 only needs to be directly torn off when in use.

The utility model discloses a theory of operation: firstly, adopting a calendaring forming process between the fireproof layer and the insulating layer to compound the glass fiber material layer 2 and the insulating flame-retardant composite film material layer 1 into a whole, and then cutting the glass fiber material layer and the insulating flame-retardant composite film material layer into sheets according to the size requirement of actual use by a common die cutting process to form the actually required composite insulating fireproof baffle; then, gluing the lower side of the glass fiber material layer 2, and then attaching a layer of release paper; and finally, producing the whole machine, and tearing off the release paper layer to be adhered around the potential ignition source of the electronic appliance rear shell to play a role in fire prevention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the specific embodiments without departing from the concept of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention.

Claims

1. The utility model provides a compound insulating fire damper which characterized in that: compound insulating fire damper includes insulating fire-retardant composite film material layer, glass fiber material layer, pastes the layer and leaves the type ply, insulating fire-retardant composite film material layer, glass fiber material layer, paste the layer and set gradually from top to bottom from the type ply, insulating fire-retardant composite film material layer is as an organic whole with the glass fiber material layer is compound, paste the layer and paste the downside on glass fiber material layer, it pastes the downside on pasting the layer to leave the type ply.

2. A composite insulating fire barrier as claimed in claim 1, in which: the thickness of the insulating flame-retardant composite film material layer is 0.08 to 0.20 mm.

3. The composite insulating fire barrier of claim 1, wherein: the glass fiber material layer is glass fiber cloth.

4. A composite insulating fire barrier as claimed in claim 1 or 3, in which: the thickness of the glass fiber material layer is 0.04 to 0.25 mm.

5. A composite insulating fire barrier as claimed in claim 1, in which: the adhesive layer is a pressure-sensitive adhesive layer.

6. The composite insulating fire barrier of claim 1, wherein: the release paper layer is white silicon paper, yellow silicon paper, coated paper, glassine paper or a PET release film.