High-temperature-resistant thermal-isolation fireproof flexible cable and manufacturing method thereof

Abstract

The invention relates to the technical field of cables, and provides a high-temperature-resistant thermal-isolation fireproof flexible cable and a manufacturing method thereof, the high-temperature-resistant thermal-isolation fireproof flexible cable comprises a cable body composed of a conductive core layer, a conductor on the inner side of the conductive core layer and a coating layer on the outer side of the conductive core layer, and further comprises a functional area arranged between the conductive core layer and the coating layer, and a switching area located in a cable end peeling area; the protective belt is installed in a winding mode and wraps the outer side of the guide core layer, and a water cooling pipe for conducting water cooling on the interior of the cable is arranged in the protective belt; the adapter pipe in butt joint with external equipment is in butt joint with the water cooling pipe through the adapter at one end of the adapter pipe to transmit the cooling medium, so that the production of the cable is not limited by the length. Water cooling operation can be carried out on the cable without being limited by the length, so that the temperature in the cable is kept in a stable use state, the high-temperature-resistant and fireproof effects are achieved, the service life of the cable is prolonged, and meanwhile the cable is suitable for various high-temperature environments.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more specifically, to a high temperature resistant, heat-insulated and fireproof soft cable and a manufacturing method thereof. Background Art

[0002] Cable is a device for transmitting electric energy or signals, usually composed of several or several groups of wires, and its main components include conductor, insulation layer, sheath and filler; the conductor is the core part of the cable, usually made of copper, aluminum or other conductive materials, used to transmit current; with the development of modern industry, cables are used in all aspects of the national economy and people's lives, thus putting forward higher requirements on the performance of high temperature cables and high temperature resistant cables;

[0003] At present, in actual applications of the existing liquid-cooled fireproof soft cables on the market, it is found that the cooling water pipeline is laid inside the cable. Although the effect of high temperature resistance and thermal isolation is achieved, due to the transmission limitation of the cooling water, the cable is often a customized product, which leads to the cable's low adaptability and inability to meet the use requirements in different high-temperature working environments, which in turn leads to poor cable effects and inconvenience in actual laying operations;

[0004] In order to solve the above problems, the present application proposes a high temperature resistant heat-insulating fireproof flexible cable and a manufacturing method thereof. Summary of the invention

[0005] The purpose of the present invention is to provide a high-temperature resistant, thermally isolated, fire-proof soft cable and a manufacturing method, which can effectively solve the problem proposed in the above background technology that a cooling water pipeline is laid inside the liquid-cooled cable. Due to the limitation of cooling water delivery, the cable is often a customized product, which leads to the cable's low adaptability and inability to meet the use requirements in different high-temperature working environments, which in turn leads to poor cable effect and inconvenience in actual laying operations.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A high-temperature resistant, heat-insulated, fire-proof soft cable, comprising: a cable body composed of a core layer, a conductor inside the core layer, and a coating layer outside the core layer, and also comprising a functional area built between the core layer and the coating layer, and a transition area located in the stripping area of ​​the cable end; a wrapped and installed protective belt, which is coated on the outside of the core layer, and the inside of the protective belt is provided with a water-cooling pipe for water-cooling the inside of the cable; a transition tube for docking with external equipment, which is docked with the water-cooling pipe through a transition joint at one end thereof to transmit cooling medium, so that the production of the cable is not limited by length; adjacent first and second sealing sleeves, which are installed in the stripping area of ​​the cable and are used to seal the junction between the transition tube and the water-cooling pipe, wherein the second sealing sleeve is located adjacent to the cable connector end.

[0008] Through the above technical solution, by using the built-in water-cooling pipe and the heat collecting pad, the heat generated during the operation of the cable can be directly absorbed and transferred to the water-cooling pipe for heat exchange, so as to promote the discharge of heat, so that the temperature inside the cable remains stable, avoiding the situation of excessive temperature and the inability to quickly discharge heat, ensuring the stable performance of the cable during operation, and enhancing the high temperature resistance of the cable.

[0009] As a further optimization of the present invention, a heat collecting pad is provided inside the protective belt to absorb the heat generated inside the cable and perform heat exchange with the water cooling pipe, and a positioning hole for passing the water cooling pipe is opened inside the heat collecting pad.

[0010] Through the above technical solution, the heat collecting pad is used to increase the contact area to promote the internal heat to be transferred outward for heat exchange, so as to improve the heat dissipation efficiency.

[0011] As a further optimization of the present invention, elastic pads are formed on both sides of the open end of the positioning hole to limit the water cooling pipe inside and enhance its installation stability.

[0012] The above technical solution is also used to cooperate with the water cooling pipe to form a buffering effect on the external force.

[0013] As a further optimization of the present invention, a convex belt and a sealing belt are respectively provided at both ends of the protective belt, and after the protective belt is wound, the sealing belt is inserted into the interior of the convex belt to form a seal.

[0014] Through the above technical solution, the sealing structure of the protective belt is used to separate the internal components from the external parts, so that the structure remains intact and is not affected by the extrusion operation, thereby improving the performance of the cable.

[0015] As a further optimization of the present invention, one end of the first sealing sleeve and the other end of the second sealing sleeve are respectively provided with a first extension sleeve and a second extension sleeve to fill the gap between the first sealing sleeve and the cable for sealing.

[0016] The above technical solution facilitates the laying and use of cables of different lengths in different environments.

[0017] As a further optimization of the present invention, a docking frame is provided at one end of the second sealing sleeve, which is docked with the limiting groove at the other end of the first sealing sleeve through an extension frame on the other side, so that the first sealing sleeve and the second sealing sleeve are connected as one.

[0018] Through the above technical solution, by utilizing the added sealing structure, the transfer part of the water cooling pipeline can be protected for stable performance, and the liquid cooling cable is freed from the limitation of customized length.

[0019] As a further optimization of the present invention, a plug for installing a water cooling pipe is provided inside the docking frame, and is located inside a side groove on one side of the docking frame.

[0020] As a further optimization of the present invention, the upper and lower ends of the plug block are provided with rubber pads that are engaged with the inner parts of the upper and lower end slots of the side grooves to seal the outwardly extending part of the water cooling pipe.

[0021] As a further optimization of the present invention, the first sealing sleeve and the second sealing sleeve are both made of elastic material and are passed through the end of the cable and arranged in the stripping area.

[0022] A method for manufacturing a high temperature resistant heat-insulating fireproof flexible cable, which is used to produce the above-mentioned high temperature resistant heat-insulating fireproof flexible cable, comprises the following steps:

[0023] S1: First, the water cooling tube and the protective belt are stored outside the conveying path before the cable extrusion process through an external winding mechanism;

[0024] S2: Before the core guide layer is transported to the extrusion equipment, the water cooling tube is wound and placed outside the core guide layer by an external winding device;

[0025] S3: Then, the protective tape is wound around the outer side of the core guide layer by an external winding device, and the water cooling pipe is inserted into the positioning hole;

[0026] S4: When the protective tape is wound and placed outside, the sealing tape on one side is inserted into the convex tape on the other side to form a butt joint, thereby forming a coating and sealing on the guide core layer;

[0027] S5: At this time, the protective belt carries the water cooling tube and the core layer together to form a coating layer on the outside through the extrusion equipment, thereby manufacturing a complete cable.

[0028] Beneficial effects of the present invention:

[0029] The present invention uses a built-in water cooling pipe and a heat collecting pad to directly absorb the heat generated during the operation of the cable and transfer it to the water cooling pipe for heat exchange, so as to promote the discharge of heat, so that the temperature inside the cable remains stable, avoids the situation where the temperature is too high and the heat cannot be quickly discharged, ensures the stable performance of the cable during operation, and also enhances the high temperature resistance of the cable;

[0030] The present invention uses the winding structure of the protective belt to insert the sealing belt into the inside of the convex belt to form a seal, thereby achieving the effect of separating the inner and outer areas of the cable, thereby ensuring the structural stability of the protective belt and its inner components, and at the same time forming a certain buffering and unloading effect on the outer force, thereby improving the service life of the cable;

[0031] After the protective belt is separated, the present invention can directly peel off the coating layer when laying the cable to expose the protective belt. At this time, the peeled part is directly sealed by the first sealing sleeve and the second sealing sleeve, and the water-cooling pipe is connected with the adapter tube. Compared with the existing liquid-cooled cable, it gets rid of the length limitation and can control the length of the water-cooling pipeline according to the actual usage situation, so it is suitable for a variety of different working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0034] Figure 2 for Figure 1 Schematic diagram of the internal structure of one end of the cable;

[0035] Figure 3 for Figure 1 Schematic diagram of the internal cross-sectional structure of one end of the cable;

[0036] Figure 4 for Figure 2 Schematic diagram of the exploded structure of the water cooling pipe and the protective belt;

[0037] Figure 5 for Figure 1 A schematic diagram of the structure of the second sealing sleeve part;

[0038] Figure 6 for Figure 1 A schematic diagram of the internal structure of the second sealing sleeve and the first sealing sleeve in the exploded state;

[0039] Figure 7 for Figure 1 A schematic diagram of the structure of the second sealing sleeve and the first sealing sleeve in the exploded state;

[0040] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0041] In the figure: 100, cable body; 200, transfer area; 300, functional area;

[0042] 101, core layer; 102, conductor; 103, cladding layer;

[0043] 201, first sealing sleeve; 202, second sealing sleeve; 203, transfer tube;

[0044] 2011, first extension sleeve; 2012, limiting groove;

[0045] 2021, second extension sleeve; 2022, docking frame; 2023, side groove; 2024, plug; 2025, rubber pad; 2026, card slot; 2027, extension frame;

[0046] 2031, adapter;

[0047] 301, protective belt; 302, water cooling pipe;

[0048] 3011, heat collecting pad; 3012, convex belt; 3013, sealing belt; 3014, positioning hole; 3015, elastic pad. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] See also Figure 1-7 The present invention provides a high temperature resistant heat-insulating fireproof flexible cable and a manufacturing method embodiment:

[0051] Reference Figure 1-2 and Figure 5-7 , a high temperature resistant heat-insulated fireproof flexible cable, comprising: a cable body 100 composed of a core layer 101 and a conductor 102 inside thereof and a coating layer 103 outside thereof, and also comprising a functional area 300 built between the core layer 101 and the coating layer 103, and a transition area 200 located in the stripping area of ​​the cable end;

[0052] The wound protective tape 301 is coated on the outside of the core layer 101 to prevent the internal components from being separated from the external coating layer 103. A water cooling pipe 302 for water cooling the inside of the cable is arranged inside the protective tape 301, and the water cooling pipe 302 can be extended outward by peeling off the coating layer 103 to facilitate docking with water cooling equipment.

[0053] The adapter tube 203 for connecting to external equipment is connected to the water cooling tube 302 through the adapter 2031 at one end thereof to transmit the cooling medium, so that the production of the cable is not limited by the length;

[0054] The adjacent first sealing sleeve 201 and the second sealing sleeve 202 are installed in the stripping area of ​​the cable to seal the joint between the transfer tube 203 and the water cooling tube 302, wherein the second sealing sleeve 202 is located adjacent to the cable connector end.

[0055] This embodiment provides a liquid-cooled high-temperature resistant heat-insulated fireproof flexible cable that does not require customized length. By using the adapter tube 203 and the adapter 2031, the cable can be connected to the water-cooling tube 302 after the cable outer sheath is stripped, so that it can be used for different length requirements, eliminating the limitation of the need to customize the length.

[0056] Reference Figure 3-4 A heat collecting pad 3011 is provided inside the protective belt 301, which is wrapped around the outside of the cable core layer 101 to increase the contact area, thereby accelerating the absorption of heat generated inside the cable, so that the heat can be exchanged with the water cooling pipe 302 at the first time, thereby improving the heat dissipation efficiency of the cable. A positioning hole 3014 for penetrating the water cooling pipe 302 is opened inside the heat collecting pad 3011.

[0057] Reference Figure 4 Elastic pads 3015 are formed on both sides of the open end of the positioning hole 3014, which are used to automatically clamp the water-cooling pipe 302 when laying it to enhance its installation stability, and at the same time cooperate with each other to form a buffering effect against external forces.

[0058] Reference Figure 2-4 A convex belt 3012 and a sealing belt 3013 are respectively provided at both ends of the protective belt 301. After the protective belt 301 is wrapped, the sealing belt 3013 is inserted into the inside of the convex belt 3012 to form a seal, thereby forming a complete coating structure, which can also resist the tearing and damage of the external coating layer 103, and provide protection for the internal water-cooling pipe 302.

[0059] Reference Figure 1 and Figure 5-7 One end of the first sealing sleeve 201 and the other end of the second sealing sleeve 202 are respectively provided with a first extension sleeve 2011 and a second extension sleeve 2021 to fill the gap between the cables and seal.

[0060] Reference Figure 5-7 A docking frame 2022 is provided at one end of the second sealing sleeve 202, which is docked with the limiting groove 2012 at the other end of the first sealing sleeve 201 through an extension frame 2027 on the other side, and the elastic characteristics of both are used to increase the friction resistance to automatically form a fixation, so that the first sealing sleeve 201 and the second sealing sleeve 202 are connected as a whole.

[0061] Reference Figure 5 and Figure 7 A plug 2024 for installing the water cooling pipe 302 is provided inside the docking frame 2022, which is located inside the side groove 2023 on one side of the docking frame 2022 and is used to maintain the structural stability of the water cooling pipe 302 transfer area.

[0062] Reference Figure 5The upper and lower ends of the plug 2024 are provided with rubber pads 2025 that are engaged with the inner grooves 2026 at the upper and lower ends of the side grooves 2023. This combination makes the assembly and disassembly operation easy to use and is used to seal the outward extending part of the water cooling pipe 302.

[0063] Reference Figure 1 The first sealing sleeve 201 and the second sealing sleeve 202 are both made of elastic material and are passed through the end of the cable in the stripping area.

[0064] Reference Figure 1-7 A method for manufacturing a high temperature resistant heat-insulating fireproof flexible cable, which is used to produce the above-mentioned high temperature resistant heat-insulating fireproof flexible cable, comprises the following steps:

[0065] S1: First, the water cooling tube 302 and the protective belt 301 are stored outside the conveying path before the cable extrusion process through an external winding mechanism;

[0066] S2: Before the core guide layer 101 is transported to the extrusion equipment, the water cooling tube 302 is wound and placed outside the core guide layer 101 by an external winding device;

[0067] S3: Then, the protective tape 301 is wound around the outside of the core guide layer 101 by an external winding device, and the water cooling tube 302 is inserted into the positioning hole 3014;

[0068] S4: When the protective tape 301 is wound and placed outside, the sealing tape 3013 on one side is inserted into the convex tape 3012 on the other side to form a butt joint, thereby forming a coating and sealing on the guide core layer 101;

[0069] S5: At this time, the protective belt 301 carries the water cooling tube 302 and the core layer 101 together to form a coating layer 103 on the outside by an extrusion device, thereby manufacturing a complete cable.

[0070] It can be understood that the present invention allows the cable to be water-cooled without being restricted by length, thereby ensuring that the temperature inside the cable is maintained in a stable use state, achieving the effect of high temperature resistance and fire prevention, increasing the service life of the cable while adapting to a variety of high temperature environments.

[0071] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicate orientation or positional relationship, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0072] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. 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 high temperature resistant heat-insulating fireproof flexible cable, characterized in that: include: The core layer (101), the conductor (102) inside it and the coating layer (103) outside it form a cable body (100), and further include a functional area (300) built between the core layer (101) and the coating layer (103), and a transition area (200) located in the stripping area of ​​the cable end; A protective belt (301) is wound around the outer side of the core guide layer (101), and a water cooling pipe (302) is provided inside the protective belt (301) for cooling the inside of the cable by water; The adapter tube (203) connected to the external device is connected to the water cooling tube (302) through the adapter (2031) at one end thereof to transmit the cooling medium, so that the production of the cable is not limited by the length; The adjacent first sealing sleeve (201) and the second sealing sleeve (202) are installed in the stripping area of ​​the cable and are used to seal the joint between the transfer tube (203) and the water cooling tube (302), wherein the second sealing sleeve (202) is located adjacent to the cable connector end.

2. A high temperature resistant heat-insulating fireproof flexible cable according to claim 1, characterized in that: A heat collecting pad (3011) is provided inside the protective belt (301) to absorb heat generated inside the cable and perform heat exchange with the water cooling pipe (302). A positioning hole (3014) for penetrating the water cooling pipe (302) is provided inside the heat collecting pad (3011).

3. A high temperature resistant heat-insulating fireproof flexible cable according to claim 2, characterized in that: Elastic pads (3015) are formed on both sides of the opening end of the positioning hole (3014) to limit the water cooling pipe (302) inside and enhance its installation stability.

4. A high temperature resistant heat-insulating fireproof flexible cable according to claim 1, characterized in that: The two ends of the protective belt (301) are respectively provided with a convex belt (3012) and a sealing belt (3013). After the protective belt (301) is wound, the sealing belt (3013) is inserted into the interior of the convex belt (3012) to form a seal.

5. The high temperature resistant heat-insulating fireproof flexible cable according to claim 1, characterized in that: One end of the first sealing sleeve (201) and the other end of the second sealing sleeve (202) are respectively provided with a first extension sleeve (2011) and a second extension sleeve (2021) for filling the gap between the first sealing sleeve and the cable to seal.

6. The high temperature resistant heat-insulating fireproof flexible cable according to claim 1, characterized in that: A docking frame (2022) is provided at one end of the second sealing sleeve (202), which is docked with the limiting groove (2012) at the other end of the first sealing sleeve (201) through an extension frame (2027) at the other side, so that the first sealing sleeve (201) and the second sealing sleeve (202) are connected as one.

7. A high temperature resistant heat-insulating fireproof flexible cable according to claim 6, characterized in that: A plug (2024) for installing a water cooling pipe (302) is provided inside the docking frame (2022), and is located inside a side groove (2023) on one side of the docking frame (2022).

8. A high temperature resistant heat-insulating fireproof flexible cable according to claim 7, characterized in that: The upper and lower ends of the plug block (2024) are both provided with rubber pads (2025) that are engaged with the inner parts of the upper and lower end slots (2026) of the side groove (2023) and are used to seal the outwardly extending part of the water cooling pipe (302).

9. The high temperature resistant heat-insulating fireproof flexible cable according to claim 1, characterized in that: The first sealing sleeve (201) and the second sealing sleeve (202) are both made of elastic material and are inserted into the stripping area through the end of the cable.

10. A method for manufacturing a high temperature resistant heat-insulating fireproof flexible cable, used for producing a high temperature resistant heat-insulating fireproof flexible cable as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: firstly, the water cooling tube (302) and the protective belt (301) are stored outside the conveying path before the cable extrusion process through an external winding mechanism; S2: before the core guide layer (101) is transported to the extrusion equipment, the water cooling tube (302) is wound and placed outside the core guide layer (101) by an external winding device; S3: Then, the protective tape (301) is wound around the outside of the core guide layer (101) by an external winding device, and the water cooling tube (302) is inserted into the positioning hole (3014); S4: When the protective belt (301) is wound and placed outside, the sealing belt (3013) on one side is inserted into the convex belt (3012) on the other side to form a butt joint, thereby forming a coating and sealing on the guide core layer (101); S5: At this time, the protective belt (301) carries the water cooling tube (302) and the core layer (101) together to form a coating layer (103) on the outside by an extrusion device, thereby manufacturing a complete cable.

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