Waterproof insulator for floor heating cable

Abstract

The utility model discloses a waterproof insulator for a floor heating cable, which relates to the technical field of cables and comprises a connecting shell, a connector is arranged at one end of the connecting shell, the inside of the connector is connected with one end of an outer layer of a floor heating cable conductor, and a sealing sleeve is arranged between the outer layer of the floor heating cable conductor and the connector. A connecting assembly is arranged on the outer side wall of the connector, and one end of the connecting assembly extends to the outer side wall of the sealing sleeve. The outer layer of the floor heating cable conductor comprises an outer sheath connected with the inner wall of the sealing sleeve, a waterproof layer is arranged in the outer sheath, and an insulating layer is arranged in the waterproof layer; a shielding layer and a wave absorbing layer are sequentially arranged between the insulating layer and the waterproof layer; an elastic material layer is arranged between the waterproof layer and the outer sheath, and a plurality of holes are arranged in the elastic material layer. According to the utility model, the radiation resistance, the waterproof performance, the bending performance and the installation and maintenance convenience of the waterproof insulator are comprehensively improved, and a safer and more reliable floor heating cable can be provided for users.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and in particular to a waterproof insulator for floor heating cables. Background Art

[0002] Graphene floor heating cable is an electric heating product that uses graphene as the core heating material. It is mainly used in floor heating systems in homes, commercial or industrial places. Its working principle is that when the current passes through the graphene wire, heat is generated due to the effect of resistance. This process efficiently converts electrical energy into thermal energy, and then the thermal energy is evenly distributed throughout the room to achieve the purpose of heating. Floor heating heating cables are widely popular for their comfort, energy saving and flexibility (especially in new buildings and renovation of old houses). The heating cable can be intelligently controlled by the thermostat to adjust the room temperature on demand and improve energy efficiency.

[0003] Waterproof insulator for floor heating heating cables is a key technical component to ensure the long-term safe operation of heating cables in underground installation environments. It mainly targets the challenges of moisture and water infiltration that heating cables may face in floor heating systems. Through specially designed insulation materials and technical means, it protects the cables from moisture while maintaining their electrical insulation performance.

[0004] For example, Chinese patent 202122982469.8 discloses a cable, which includes a first metal conductor, a first insulator, a second metal conductor and a second insulator, which can achieve low-mode conversion and improve high-frequency characteristics. However, the above-mentioned cables still have the following shortcomings: floor heating cables are usually installed in the room. Although the radiation generated by floor heating cables during operation is small, there is still a certain amount of radiation. In order to improve the competitiveness of the product and reduce radiation, waterproof insulators are required to provide radiation resistance. At the same time, while being waterproof and radiation-resistant, floor heating cables require good bending performance, and existing waterproof insulators for cables cannot meet the above requirements at the same time.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a waterproof insulator for floor heating heating cables to overcome the above-mentioned technical problems existing in the existing related technology.

[0007] To this end, the specific technical solutions adopted by the utility model are as follows:

[0008] A waterproof insulator for a floor heating cable comprises a connecting shell, one end of which is provided with a joint, the inside of the joint is connected to one end of an outer layer of a floor heating cable conductor, and a sealing sleeve is provided between the outer layer of the floor heating cable conductor and the joint; a connecting component is provided on an outer side wall of the joint, and one end of the connecting component extends to the outer side wall of the sealing sleeve.

[0009] Furthermore, in order to effectively absorb and attenuate radiation, the outer layer of the floor heating cable conductor includes an outer sheath connected to the inner wall of the sealing sleeve, a waterproof layer is arranged inside the outer sheath, and an insulating layer is arranged inside the waterproof layer; a shielding layer and an absorbing layer are arranged in sequence between the insulating layer and the waterproof layer.

[0010] Furthermore, in order to improve the bendability of the cable, an elastic material layer is provided between the waterproof layer and the outer sheath, and a plurality of holes are provided in the elastic material layer.

[0011] Furthermore, in order to ensure the sealing of the connection between the joint and the outer layer of the floor heating cable conductor, the sealing sleeve includes a rubber sealing tube arranged between the outer layer of the floor heating cable conductor and the joint, and a through hole is arranged at one end of the rubber sealing tube close to the connecting shell.

[0012] Furthermore, in order to make the connection between the outer layer of the floor heating cable conductor and the joint more stable, the connecting assembly includes a threaded hole arranged in the side wall of the joint, a bolt is arranged in the threaded hole, and one end of the bolt abuts against the outer wall of the rubber sealing tube.

[0013] The beneficial effects of the utility model are:

[0014] (1) The utility model comprehensively improves the radiation resistance, waterproofness, bending performance and installation and maintenance convenience of the waterproof insulator, and can provide users with a safer and more reliable graphene floor heating cable.

[0015] (2) By providing an outer layer of the floor heating cable conductor, the radiation can be effectively absorbed and attenuated, reducing the radiation impact of the heating cable on the external environment when it is working, making the product more friendly to human health and increasing market competitiveness. While ensuring insulation and waterproofness, the bendability of the cable is greatly improved.

[0016] (3) By setting up a sealing sleeve, the sealing of the connection between the joint and the outer layer of the floor heating cable conductor is ensured, effectively preventing moisture intrusion, protecting the internal conductor from moisture, and extending the service life.

[0017] (4) By setting up the connection assembly, the rubber sealing tube and the end of the outer layer of the floor heating cable conductor can be squeezed, so that the connection between the outer layer of the floor heating cable conductor and the joint is more stable, which is convenient for installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a waterproof insulator for floor heating cables according to an embodiment of the utility model;

[0020] Figure 2 It is a three-dimensional assembly diagram of a waterproof insulator for floor heating cables according to an embodiment of the utility model;

[0021] Figure 3 It is a schematic structural diagram of the outer layer of the conductor of a floor heating cable in a waterproof insulator for a floor heating cable according to an embodiment of the utility model;

[0022] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0023] Figure 5 It is a schematic diagram of the expansion of an elastic material layer in a waterproof insulator for a floor heating cable according to an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Connecting shell; 2. Connector; 3. Outer layer of floor heating cable conductor; 301. Outer sheath; 302. Waterproof layer; 303. Insulating layer; 304. Shielding layer; 305. Absorbing layer; 306. Elastic material layer; 307. Hole; 4. Sealing sleeve; 401. Rubber sealing tube; 402. Through hole; 5. Connecting assembly; 501. Threaded hole; 502. Bolt. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the utility model, a waterproof insulator for a floor heating cable is provided.

[0028] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-5As shown, the waterproof insulator for floor heating cables according to the embodiment of the utility model comprises a connection shell 1, one end of which is provided with a joint 2, which is connected to one end of the outer conductor layer 3 of the floor heating cable, and a sealing sleeve 4 is provided between the outer conductor layer 3 of the floor heating cable and the joint 2, and the conductor of the floor heating cable is located inside the outer conductor layer 3 of the floor heating cable; a connection component 5 is provided on the outer wall of the joint 2, and one end of the connection component 5 extends to the outer wall of the sealing sleeve 4. In addition, a connection hole is provided at the connection shell 1 for connecting with the connection shell 1 in other waterproof insulators for floor heating cables, thereby increasing the overall length of the cable, adapting to rooms of different sizes and shapes, and improving the applicability and flexibility of the floor heating system.

[0029] With the aid of the above scheme, the utility model comprehensively improves the radiation resistance, waterproofness, bending performance and convenience of installation and maintenance of the waterproof insulator, and can provide users with a safer and more reliable graphene floor heating cable.

[0030] In one embodiment, for the above-mentioned floor heating cable conductor outer layer 3, the floor heating cable conductor outer layer 3 includes an outer sheath 301 connected to the inner wall of the sealing sleeve 4, a waterproof layer 302 is arranged inside the outer sheath 301, and an insulating layer 303 is arranged inside the waterproof layer 302; a shielding layer 304 and an absorbing layer 305 are arranged in sequence between the insulating layer 303 and the waterproof layer 302; an elastic material layer 306 is arranged between the waterproof layer 302 and the outer sheath 301, and a plurality of holes 307 are arranged in the elastic material layer 306 to form a microporous elastic material structure, thereby effectively absorbing and attenuating radiation, reducing the radiation impact of the heating cable on the external environment when working, improving the product's friendliness to human health, increasing market competitiveness, and while ensuring insulation and waterproofing, greatly improving the bendability of the cable.

[0031] The working principle of the outer layer 3 of the floor heating cable conductor is as follows: the outer sheath 301 provides physical protection to prevent external mechanical damage. The elastic material layer 306 and the hole 307 form a microporous elastic material structure. The microporous elastic material structure forms a large number of tiny gaps inside the material. These gaps can serve as a buffer zone for stress when the material is subjected to stress, helping to disperse the external mechanical stress and reduce stress concentration. In this way, when the cable is subjected to bending or stretching, the stress can be dispersed in a larger volume instead of being concentrated on a few points, thereby improving the bending and stretching resistance of the cable. At the same time, the microporous elastic material structure itself has good elasticity and can return to its original shape after being deformed by external force. The microporous structure further enhances this characteristic, because the presence of pores reduces the energy consumption of the material during the deformation process, so that the material can rebound to the initial state faster and more completely after the external force is removed, which is conducive to the cable to remain in good condition after repeated bending or stretching.

[0032] The waterproof layer 302 ensures that moisture cannot penetrate into the interior and protects the electrical components from moisture erosion. The shielding layer 304 is used to reflect and absorb radiation to reduce the radiation impact on the outside. The absorbing layer 305 absorbs electromagnetic waves that are not completely blocked by the shielding layer to improve the radiation resistance. The insulating layer 303 directly wraps the conductor to prevent current leakage and ensure electrical safety.

[0033] The heat generated by the heating conductor is first conducted through the adjacent insulating layer 303. Although the primary task of the insulating layer 303 material is electrical insulation, it also needs to have a certain thermal conductivity to allow heat to be effectively transferred. For example, modified polyester or polyimide, through special modification treatment, can optimize its thermal conductivity and mechanical properties while maintaining good electrical properties, and is suitable for high-performance heating cables. The heat is then transferred to the waterproof layer 302 through the insulating layer 303. Although the main function of the waterproof layer 302 is to prevent moisture penetration, its material should also have a certain thermal conductivity. For example, hot melt adhesive not only has good waterproof and sealing properties, but also can still maintain a certain thermal conductivity after curing, and will not seriously hinder heat transfer.

[0034] In addition, the shielding layer 304 is made of a metal braided mesh, such as copper or tinned copper wire, the absorbing layer 305 is made of a composite material of ferrite powder and a polymer matrix, and the elastic material layer 306 is made of modified polyolefin, which is enhanced in elasticity and thermal conductivity by adding specific fillers or chemically modified, so that heat can be effectively transferred. When the heat reaches the vicinity of the outer sheath 301, part of the heat is transferred through the thermal conductivity of the outer sheath 301 itself, but more importantly, the heat will gradually accumulate and dissipate to the surrounding environment in the form of radiation and convection.

[0035] In one embodiment, for the above-mentioned sealing sleeve 4, the sealing sleeve 4 includes a rubber sealing tube 401 arranged between the outer layer 3 of the floor heating cable conductor and the joint 2. The rubber sealing tube 401 is provided with a through hole 402 at one end close to the connecting shell 1, thereby ensuring the sealing of the connection between the joint 2 and the outer layer 3 of the floor heating cable conductor, effectively preventing moisture intrusion, protecting the internal conductor from moisture, and extending the service life.

[0036] In one embodiment, for the above-mentioned connecting component 5, the connecting component 5 includes a threaded hole 501 arranged in the side wall of the joint 2, a bolt 502 is arranged in the threaded hole 501, and one end of the bolt 502 abuts against the outer wall of the rubber sealing tube 401, so as to squeeze the rubber sealing tube 401 and the end of the outer layer 3 of the floor heating cable conductor, so that the connection between the outer layer 3 of the floor heating cable conductor and the joint 2 is more stable, which is convenient for installation and maintenance.

[0037] The working principle of the connection assembly 5 is as follows: when the bolt 502 is screwed into the threaded hole 501 and tightened, radial pressure is generated on the rubber sealing tube 401, making the connection more stable.

[0038] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0039] In actual application, the current is heated by the conductor, and the heat is transferred outward through the insulation layer to warm the indoor space. The firm connection and waterproof sealing design of the connection components ensure the stability and durability of the floor heating cable during installation and use, so that the floor heating system can provide warmth safely and efficiently in a variety of environments, while ensuring the health and convenience of users.

[0040] In summary, the utility model comprehensively improves the radiation resistance, waterproofness, bending performance and installation and maintenance convenience of the waterproof insulator, and can provide users with a safer and more reliable graphene floor heating cable. By setting the outer layer 3 of the floor heating cable conductor, the radiation is effectively absorbed and attenuated, the radiation impact of the heating cable on the external environment when working is reduced, the friendliness of the product to human health is improved, the market competitiveness is increased, and while ensuring insulation and waterproofness, the bendability of the cable is greatly improved. By setting the sealing sleeve 4, the sealing of the connection between the connector 2 and the outer layer 3 of the floor heating cable conductor is ensured, effectively preventing moisture intrusion, protecting the internal conductor from moisture, and extending the service life. By setting the connecting component 5, the rubber sealing tube 401 and the end of the outer layer 3 of the floor heating cable conductor can be squeezed, so that the connection between the outer layer 3 of the floor heating cable conductor and the connector 2 is more stable, which is convenient for installation and maintenance.

[0041] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof insulator for a floor heating cable, comprising a connecting shell (1), characterized in that: A joint (2) is provided at one end of the connection shell (1), the joint (2) is connected to one end of the outer layer (3) of the floor heating cable conductor, and a sealing sleeve (4) is provided between the outer layer (3) of the floor heating cable conductor and the joint (2); A connecting component (5) is provided on the outer side wall of the joint (2), and one end of the connecting component (5) extends to the outer side wall of the sealing sleeve (4).

2. A waterproof insulator for floor heating cables according to claim 1, characterized in that: The outer layer (3) of the floor heating cable conductor comprises an outer sheath (301) connected to the inner wall of the sealing sleeve (4); a waterproof layer (302) is arranged inside the outer sheath (301); and an insulating layer (303) is arranged inside the waterproof layer (302).

3. A waterproof insulator for floor heating cables according to claim 2, characterized in that: A shielding layer (304) and a wave absorbing layer (305) are sequentially arranged between the insulating layer (303) and the waterproof layer (302).

4. A waterproof insulator for floor heating cables according to claim 3, characterized in that: An elastic material layer (306) is provided between the waterproof layer (302) and the outer sheath (301), and a plurality of holes (307) are provided in the elastic material layer (306).

5. A waterproof insulator for floor heating cables according to claim 4, characterized in that: The sealing sleeve (4) comprises a rubber sealing tube (401) arranged between the outer layer (3) of the floor heating cable conductor and the joint (2), and a through hole (402) is arranged at one end of the rubber sealing tube (401) close to the connection shell (1).

6. A waterproof insulator for floor heating cables according to claim 5, characterized in that: The connection assembly (5) comprises a threaded hole (501) arranged in the side wall of the joint (2), a bolt (502) being arranged in the threaded hole (501), and one end of the bolt (502) abuts against the outer side wall of the rubber sealing cylinder (401).

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