Fire extinguishing insulating cap

What is AI technical title?
AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By integrated fire extinguishing capsules and multi -layer insulation structures in the insulating cap, the problem that existing insulation caps cannot effectively suppress the fire when the fire occurs, and achieves high -efficiency fire suppression and safety improvement of the wire junction.

CN119327075AInactive Publication Date: 2025-01-21LIAONING SHIJUN TIANCHENG TECHNOLOGY CO LTD

View PDF 0 Cites 0 Cited by

Patent Information

Application Number: CN202411682963.4
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-11-22
Publication Date: 2025-01-21
Estimated Expiration: Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing insulating caps cannot effectively suppress the fire when a fire occurs, and the moldability of the silicon insulating caps is lower than that of PVC, resulting in high manufacturing costs.

Method used

A fire extinguishing and insulating hat is designed, including fire extinguishing capsules and multi -layer insulation structures, including the first and second insertion departments, the first and second insulation layers, the labeling department, and the third insulation layer. For the materials, the fire extinguishing agent can be quickly released during the fire and the color can be changed to mark the abnormal.

Benefits of technology

Through the rapid release of fire -extinguishing capsules and the design of the multi -layer insulation structure, it can effectively suppress the fire and improve the safety of the use, while reducing the manufacturing cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN119327075A_ABST

Patent Text Reader

Abstract

The invention relates to the technical field of electrics, and particularly discloses a fire extinguishing insulation cap which comprises an insulation cap body, the insulation cap body forms a joint part of a wire or a terminal, the insulation cap body comprises a fire extinguishing capsule, the insulation cap body further comprises a first insertion part and a second insertion part, the fire extinguishing capsule comprises a core material and a wall material, and the core material is made of fire extinguishing agents. The wall material is located on the outer periphery of the core material, and the wall material comprises, by weight, 65-80 parts of polymer resin, 5-15 parts of rosin, 5-10 parts of illite and 5-10 parts of donkey-hide gelatin. Through cooperative use of the insulation cap, the first insertion part, the second insertion part, the first insulation layer, the second insulation layer, the marking part, the third insulation layer, the thermosensitive coating, the fire extinguishing capsule, the core material and the wall material, the insulation cap contains a certain amount of fire extinguishing agent, so that fire disasters at joint parts such as electric wires protected by the insulation cap are quickly suppressed, and the use safety is improved.

Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the field of electrical technology, in particular to a fire extinguishing insulating cap. Background Art

[0002] Generally, crimp terminals for wiring are used in electrical and electronic products, industrial switchboards, or related machines. In order to effectively connect and join components, components and power supplies, or wires and wires, the front end of the insulated wire is stripped to an appropriate length, and the stripped part is crimped and fixed before use. At this time, an insulating cap is put on the joint part between the stripped part of the insulated wire and the crimp terminal for insulation purposes. This insulating cap is made of PVC, which has excellent manufacturing convenience and chemical resistance.

[0003] However, there is a problem that when heat is generated due to excessive current flow, heat is generated due to resistance caused by poor contact, or a fire is caused by external heat, the insulating cap made of synthetic resin melts and becomes a cause of promoting the spread of fire. In order to overcome this problem, the recent insulating cap is made of silicon with excellent heat resistance as the main material. However, there is a problem that the moldability of silicon is lower than that of PVC, so the manufacturing cost is high. In addition, there is a problem that the silicon insulating cap, like the PVC insulating cap, cannot achieve the initial suppression of the fire when a fire occurs. Therefore, in order to solve such problems, we have proposed a fire extinguishing insulating cap. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a fire extinguishing insulating cap.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The invention discloses a fire extinguishing insulating cap, comprising an insulating cap, wherein the insulating cap constitutes a joint portion of an electric wire or a terminal, wherein the insulating cap contains a fire extinguishing capsule, and further comprising a first insertion portion and a second insertion portion.

[0007] Preferably, the fire extinguishing capsule includes a core material which is composed of a fire extinguishing agent, and a wall material which is located at the outer periphery of the core material, and the wall material includes 65 to 80 parts by weight of a polymer resin, 5 to 15 parts by weight of rosin, 5 to 10 parts by weight of illite, 5 to 10 parts by weight of donkey-hide gelatin, 2 to 5 parts by weight of a precipitant, and 2 to 5 parts by weight of a coagulant.

[0008] Preferably, the insulating cap includes a first insulating layer, which forms one side or the whole and contains a thermosensitive paint that changes color when a certain temperature is reached; and a second insulating layer, which is formed at a position corresponding to the first insulating layer and contains a thermosensitive paint that changes color at a temperature different from that of the first insulating layer.

[0009] Preferably, the insulating cap is transparent or translucent, and changes color when the joint generates heat and reaches a certain temperature or above, and includes a marking portion, which is arranged on one side of the insulating cap and maintains color even when the joint generates heat.

[0010] Preferably, the insulating cap is transparent or translucent, and includes a third insulating layer, which is arranged on one side of the insulating cap and changes color when the joint reaches a certain temperature; and a marking portion, which is formed at a position corresponding to the third insulating layer and does not change color even when the joint generates heat.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The present invention uses an insulating cap, a first insertion part, a second insertion part, a first insulating layer, a second insulating layer, a marking part, a third insulating layer, a thermosensitive coating, a fire extinguishing capsule, a core material and a wall material in combination. The insulating cap contains a certain amount of fire extinguishing agent, thereby quickly suppressing fires at joints of wires and the like protected by the insulating cap, thereby improving safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ;

[0014] Figure 2 For the present invention Figure 1 A cross-sectional view of

[0015] Figure 3 The structure of the present invention is shown in FIG. Figure 2 ;

[0016] Figure 4 For the present invention Figure 3 A cross-sectional view of

[0017] Figure 5 The structure of the present invention is shown in FIG. Figure 3 ;

[0018] Figure 6 For the present invention Figure 5 A cross-sectional view of

[0019] Figure 7 The structure of the present invention is shown in FIG. Figure 4 ;

[0020] Figure 8 For the present invention Figure 7 A cross-sectional view of

[0021] Fig. 9 This is a cross-sectional view of the present invention.

[0022] In the figure: 10, insulating cap; 110, first insertion part; 120, second insertion part; 12, first insulating layer; 130, marking part; 14, second insulating layer; 16, third insulating layer; 18, thermal sensitive paint; 20, fire extinguishing capsule; 210, core material; 220, wall material. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figure 1-Figure 9 , a fire-extinguishing insulating cap, comprising an insulating cap 10, the insulating cap 10 constituting a joint of a wire or a terminal, the insulating cap 10 comprising a fire-extinguishing capsule 20, and the insulating cap 10 further comprising a first insertion portion 110 and a second insertion portion 120; when the joint generates heat, fire suppression or cooling is supported; the insulating cap 10 can be composed as follows: 20 to 40 parts by weight of the fire-extinguishing capsule 20 is contained relative to 100 parts by weight. In addition, the insulating cap 10 can be PVC or silicon. Of course, it is not limited to this, and the insulating cap 10 can select any material or composition that can maintain insulation according to the purpose of use or the use environment.

[0025] As a technical optimization scheme of the present invention, the fire extinguishing capsule 20 includes a core material 210 which is composed of a fire extinguishing agent, and a wall material 220 which is located at the outer periphery of the core material 210. The wall material 220 includes 65 to 80 parts by weight of a polymer resin, 5 to 15 parts by weight of rosin, 5 to 10 parts by weight of illite, 5 to 10 parts by weight of donkey-hide gelatin, 2 to 5 parts by weight of a precipitant, and 2 to 5 parts by weight of a coagulant.

[0026] As a technical optimization solution of the present invention, the insulating cap 10 includes a first insulating layer 12, which forms one side or the whole and contains a thermosensitive paint 18 that changes color when a certain temperature is reached; and a second insulating layer 14, which is formed at a position corresponding to the first insulating layer 12 and contains a thermosensitive paint 18 that changes color at a temperature different from that of the first insulating layer 12.

[0027] As a technical optimization solution of the present invention, the insulating cap 10 is transparent or translucent, and changes color when the joint generates heat and reaches a certain temperature or above. It includes a marking portion 130, which is arranged on one side of the insulating cap 10 and maintains its color even when the joint generates heat.

[0028] As a technical optimization solution of the present invention, the insulating cap 10 is transparent or translucent, and includes a third insulating layer 16, which is arranged on one side of the insulating cap 10, and when the joint reaches a certain temperature, the color will change; and a marking portion 130, which is formed at a position corresponding to the third insulating layer 16, and the color will not change even if the joint generates heat.

[0029] Embodiment 1:

[0030] like Figure 1-Figure 2 As shown, the insulating cap 10 includes a first insertion portion 110, which is inserted into one end of a crimping terminal, etc.; a second insertion portion 120, which is arranged at a position corresponding to the first insertion portion 110 and is inserted into a portion of a wire, etc., and the first insertion portion 110 and the second insertion portion 120 may include a step portion, which is used to naturally overcome the diameter difference. The insulating cap 10 is formed by an insulating layer.

[0031] Embodiment 2:

[0032] like Figure 3-4 As shown, the insulating cap 10 includes a first insertion portion 110 and a second insertion portion 120, and the insulating cap 10 is composed of a first insulating layer 12 and a second insulating layer 14. For example, the first insulating layer 12 forms the entire insulating cap 10, and a portion of the second insulating layer 14 is formed at one end of the first insulating layer 12. Without limitation thereto, the second insulating layer 14 may form the entire insulating cap 10, and the first insulating layer 12 may form only a portion thereof, the first insulating layer 12 may contain 10 to 20 parts by weight of a thermosensitive paint 18 relative to 100 parts by weight of the main component of the insulating cap 10, and the thermosensitive paint 18 reacts at 70 to 80°C, and the first insulating layer 12 may contain 10 to 20 parts by weight of a thermosensitive paint 18 relative to 100 parts by weight of the main component of the insulating cap 10, and the thermosensitive paint 18 reacts at 50 to 60°C. After the insulating cap 10 is formed in a form that insulates the joint of the electric wire, when heat is generated due to overcurrent, abnormal current or fire, the second insulating layer 14 reacting at 50 to 60°C changes color to transparent, etc., so that the operator or manager can recognize that an abnormality has occurred around the insulating cap 10. Due to the continuous generation of heat, the first insulating layer 12 reacting at 70 to 80°C changes color to transparent, so that the operator or manager can easily recognize that an abnormality has occurred around the insulating cap 10.

[0033] Embodiment three:

[0034] like Figure 5-6As shown, the insulating cap 10 includes a first insertion portion 110 and a second insertion portion 120, and the insulating cap 10 includes a marking portion 130, which is arranged on any side of the insulating cap 10, and does not change color when heat is applied due to fire, etc. The insulating cap 10 can contain 10 to 20 parts by weight of a thermosensitive paint 18 relative to 100 parts by weight of the main component. The insulating cap 10 is formed irreversibly, and when a certain temperature is exceeded, the color of the joint portion changes due to the thermosensitive paint 18, and even if the heat of the joint portion is eliminated, the changed color is still maintained. For example, the insulating cap 10 changes to transparent due to heat. The above-mentioned insulating cap 10 is formed in the same color as the marking portion 130. When heat is generated at the joint portion due to various reasons such as abnormal current, the color changes to transparent or translucent due to the thermosensitive paint 18, and the marking portion 130 maintains the original color, so that the operator or manager can easily identify that the joint portion is abnormal.

[0035] Embodiment 4:

[0036] like Figure 7-8 As shown, the insulating cap 10 includes a first insertion portion 110 and a second insertion portion 120, the insulating cap 10 includes a third insulating layer 16 containing a heat-sensitive paint 18, the third insulating layer 16 is formed on one side of the insulating cap 10, when heat is generated at the joint and reaches a certain temperature or above, the color will change, and then when it is cooled to below a certain temperature, it will return to the original color, the insulating cap 10 includes a marking portion 130, the marking portion 130 is formed on one side of the insulating cap 10, even if the joint generates heat, the original color remains unchanged, in other words, the insulating cap 10 is formed as a whole to be transparent or translucent, and on one side A third insulating layer 16 is formed, and a marking portion 130 is formed on the other side. The insulating state of the joint of the transparent or translucent insulating cap 10 can be confirmed by naked eyes. Thereafter, when the joint generates heat and reaches a certain temperature or above during use, the operator or manager can easily recognize that an abnormality has occurred through the temperature change of the third insulating layer 16. When the temperature drops below a certain temperature due to heat cooling, the third insulating layer 16 will return to its original color. The fire extinguishing capsule 20 is contained in the insulating cap 10. When the joint generates heat and reaches a certain temperature or above, fire suppression or heat cooling is achieved through fire extinguishing effect.

[0037] Embodiment five:

[0038] like Fig. 9As shown, the fire extinguishing capsule 20 includes a core material 210 and a wall material 220, which is formed on the outer periphery of the core material 210 to support and protect the core material 210. The core material 210 is protected by the wall material 220. When the temperature reaches a certain level due to a fire, for example, 130°C to 300°C, the liquid explodes during the gasification process, thereby achieving the initial suppression of the fire. The core material 210 is FK-5-1-12 (dodecafluoro-2-methyl-3-pentanone). The core material 210 is CF3CF3C(O)CF(CF3)2, which is a clean fire extinguishing agent composed of pentane replaced by 12 Fs, a ketone group in the middle, and a metal base replaced by F. The core material 210 is not limited to this, and can also be replaced by halogen carbons of the fluorine carbon, fluorine chlorine carbon, fluorine bromine carbor series; halogen carbons of the fluorine iodine carbon series; or hydrofluorocarbons (HFCs) such as 2-iodo-1,1,1,2,3,3,3-heptafluoropropane.

[0039] The wall material 220 is formed with a certain thickness on the outer periphery of the core material 210, and protects the core material 210 at a certain temperature, for example, below 130°C to 300°C. When the temperature reaches above a certain temperature, the explosion caused by the gasification process of the core material 210 causes the fire extinguishing gas of the core material 210 to be sprayed out, thereby suppressing the fire.

[0040] In addition, the wall material 220 is composed of 65 to 80 parts by weight of a polymer resin, 5 to 15 parts by weight of rosin, 5 to 10 parts by weight of illite, 5 to 10 parts by weight of donkey-hide gelatin, 2 to 5 parts by weight of a precipitant, and 2 to 5 parts by weight of a coagulant.

[0041] The polymer resin is easy to shape and can withstand a certain degree of external force through its own elasticity and soften due to heat, thereby inducing the explosion of the core material 210 .

[0042] The polymer resin is formed by one or more resins selected from the group consisting of polyurethane resin, polyurea resin, polyamide resin, polyester resin, polycarbonate resin, aminoaldehyde resin, melamine resin, polystyrene resin, styrene-acrylate copolymer resin, styrene-methacrylic acid copolymer resin, gelatin or its derivatives, polyvinyl alcohol, phenolic resin, resorcinol formaldehyde resin, and mixtures thereof. At this time, preferably, the polymer resin is a polyurethane resin or a polyurea resin. Rosin is a solid resin obtained by heating a liquid resin obtained from a coniferous tree such as a pine tree, so that the volatile liquid terpene evaporates. It is composed of resin acids such as abietic acid. The rosin may be destroyed at room temperature, but the rosin will dissolve after heating. In addition, rosin is excellent in coating and coating due to its own adhesion, thereby inducing the formation of a coating of the core material 210. Illite is a clay mineral belonging to the group of non-expandable or non-swelling layered silicates. In addition, since illite has high water absorption and thermal resistance and is non-flammable, it can absorb heat and inhibit combustion when a fire occurs. Donkey hide glue is a natural adhesive, which is a substance that is obtained by cooling and solidifying animal skins or bones after hot liquid output and concentration. It can be used together with polymer resin to smoothly realize the coating and coating of the core material 210. The precipitant may include one or more precipitants selected from the group consisting of potassium acetate, sodium citrate, sodium chloride, ammonium chloride, sodium iodide, potassium iodide, copper sulfate, and sodium thiocyanate. The coagulant may include one or more coagulants selected from the group consisting of aluminum sulfate, zinc hydroxide, ferric hydroxide, and ferric chloride. The insulating cap 10 constructed as above is arranged at the joint where the wire and the terminal or the wire and the wire are connected, so as to maintain or improve the insulation of the joint. When the joint generates heat and reaches a certain temperature or above, the fire extinguishing agent is sprayed out, thereby suppressing or cooling the fire, thereby improving the safety of use, and the fire extinguishing agent forms the core material 210 of the fire extinguishing capsule 20 contained in the insulating cap 10.

[0043] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire extinguishing insulating cap, comprising an insulating cap (10), characterized in that: The insulating cap (10) constitutes a joint portion of an electric wire or a terminal. The insulating cap (10) contains a fire extinguishing capsule (20). The insulating cap (10) further comprises a first insertion portion (110) and a second insertion portion (120).

2. The fire extinguishing insulating cap according to claim 1, characterized in that: The fire extinguishing capsule (20) comprises a core material (210) which is composed of a fire extinguishing agent, and a wall material (220) which is located at the outer periphery of the core material (210), wherein the wall material (220) comprises 65 to 80 parts by weight of a polymer resin, 5 to 15 parts by weight of rosin, 5 to 10 parts by weight of illite, 5 to 10 parts by weight of donkey-hide gelatin, 2 to 5 parts by weight of a precipitant, and 2 to 5 parts by weight of a coagulant.

3. The fire extinguishing insulating cap according to claim 1, characterized in that: The insulating cap (10) comprises a first insulating layer (12) which forms one side or the whole and contains a heat-sensitive paint (18) which changes color when a certain temperature is reached; and a second insulating layer (14) which is formed at a position corresponding to the first insulating layer (12) and contains a heat-sensitive paint (18) which changes color at a temperature different from that of the first insulating layer (12).

4. The fire extinguishing insulating cap according to claim 1, characterized in that: The insulating cap (10) is transparent or translucent, and changes color when the joint generates heat and reaches a certain temperature or above. The insulating cap (10) comprises a marking portion (130), which is arranged on one side of the insulating cap (10) and maintains its color even when the joint generates heat.

5. The fire extinguishing insulating cap according to claim 1, characterized in that: The insulating cap (10) is transparent or translucent, and comprises a third insulating layer (16) which is arranged on one side of the insulating cap (10) and changes color when the joint reaches a certain temperature; and a marking portion (130) which is formed at a position corresponding to the third insulating layer (16) and does not change color even when the joint generates heat.