Flexible construction insulated electrical cable

Abstract

The utility model relates to the technical field of insulated cable discloses a flexible structure's insulated cable, including the outer protective sheath, the wire main body, the inner ring layer of outer protective sheath is fixed with the tape layer, the wire main body is twisted and arranged in mica tape layer, the outside wall of wear -resisting cover is coated with wear -resisting layer. The utility model discloses the outermost layer of cable whole through this outer protective sheath, then the wear -resisting cover is wrapped in the external position of outer protective sheath, and one end of wear -resisting cover is fixed with first adhesive layer, and the other end of wear -resisting cover is fixed with second adhesive layer, so after wrapping a circle of wear -resisting cover, the adhesion between first adhesive layer and second adhesive layer is completed to the wrapping work of wear -resisting cover, and the wear -resisting layer is coated on the outside wall of wear -resisting cover, and the wear -resisting cover is arranged with the air hole, so after using, it does not influence its normal heat dissipation, improves the wear -resisting protection ability of whole, and therefore improves the external wear -resisting protection ability of whole in the process of working.

Description

Technical Field

[0001] This utility model relates to the field of insulated cable technology, specifically to an insulated cable with a flexible structure. Background Technology

[0002] Insulated cables are devices used to transmit electrical energy or signals. Their conductors are wrapped with insulating material to prevent current leakage or short circuits. Insulated cables are widely used in power transmission, communication systems and other fields that require safe electrical conduction. They are characterized by high safety, strong anti-interference ability, and convenient installation and maintenance.

[0003] Due to the use of insulated cables, flexible structures are now added to improve their performance, giving them excellent bending properties and making them suitable for various laying methods without the need for special cable terminals and intermediate joints. However, even with a flexible design, a portion of the insulated cable is still used in exposed spaces, making its outer protective sheath susceptible to wear. If the outer protective sheath is damaged or broken after wear, the conductors may be exposed over long-term use, affecting safety and service life. Utility Model Content

[0004] The purpose of this utility model is to provide a flexible insulated cable to solve the problem mentioned in the background art that some insulated cables are also used in exposed spaces, so the outer protective sleeve of the insulated cable is easily worn. If the outer protective sleeve is damaged or broken after wear, the conductor is easily exposed under long-term use, which affects the safety and service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible insulated cable, comprising an outer protective sheath and a conductor body, wherein an inner ring of the outer protective sheath is fixed with a wrapping layer, an inner ring of the wrapping layer is fixed with a filling layer, an inner ring of the filling layer is fixed with a mineral compound layer, an inner ring of the mineral compound layer is fixed with a mica tape layer, the conductor body is stranded in the mica tape layer, an abrasion-resistant sleeve is fitted on the outside of the outer protective sheath, a first adhesive layer is fixed at one end of the abrasion-resistant sleeve, a second adhesive layer is fixed at the other end of the abrasion-resistant sleeve, and an abrasion-resistant layer is coated on the outer wall of the abrasion-resistant sleeve.

[0006] As a further technical solution of this utility model, the first adhesive layer and the second adhesive layer are bonded and fixed together, and the coating surface area between the first adhesive layer and the second adhesive layer is the same.

[0007] As a further technical solution of this utility model, the wear-resistant layer is coated on the outer wall of the wear-resistant sleeve for wear protection, and the wear-resistant sleeve is provided with vent holes.

[0008] As a further technical solution of this utility model, the wrapping layer includes a fireproof layer and an isolation strip, with the fireproof layer fixed in the middle position within the isolation strip.

[0009] As a further technical solution of this utility model, the conductor body can be evenly distributed inside the mica tape layer, and the conductor body is composed of multiple strands of wire.

[0010] As a further technical solution of this utility model, the outer diameter of the wrapping layer is smaller than the inner diameter of the outer protective sleeve, and the outer diameter of the filling layer is smaller than the inner diameter of the wrapping layer.

[0011] As a further technical solution of this utility model, the outer diameter of the mineral compound layer is smaller than the inner diameter of the filling layer, and positioning strips are arranged in the mica tape layer at the upper and lower positions of the conductor body.

[0012] As a further technical solution of this utility model, the positioning strips are symmetrically distributed about the central axis of the conductor body, and the lateral length of the positioning strips is the same as the length of the conductor body.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the flexible structure of the insulated cable improves the external abrasion resistance and protection capability, and also improves the conductor positioning and protection capability of the insulated cable.

[0014] (1) The outer protective sleeve is the outermost layer of the cable. Then the wear-resistant sleeve is wrapped around the outer protective sleeve. One end of the wear-resistant sleeve is fixed with a first adhesive layer and the other end of the wear-resistant sleeve is fixed with a second adhesive layer. Therefore, after the wear-resistant sleeve is wrapped around the cable, the adhesive effect between the first adhesive layer and the second adhesive layer completes the wrapping of the wear-resistant sleeve. At the same time, the wear-resistant layer is coated on the outer wall of the wear-resistant sleeve, and there are ventilation holes in the wear-resistant sleeve. Therefore, it does not affect its normal heat dissipation after use. At the same time, the wear-resistant layer improves the overall wear-resistant protection capability. Therefore, the overall external wear-resistant protection capability is improved in the working process.

[0015] (2) Positioning strips are arranged in the mica strip layer at the upper and lower positions of the conductor body, and the positioning strips are symmetrically distributed about the central axis of the conductor body. The lateral length of the positioning strips is the same as the length of the conductor body. Therefore, after the conductor body is arranged, the two positioning strips can work together to position the conductor body, reducing the phenomenon of conductor body offset.

[0016] (3) The outer protective sleeve is fixed with a wrapping layer in the inner ring, and the wrapping layer is fixed with a filling layer in the inner ring. The filling layer is fixed with a mineral compound layer in the inner ring, and the mica tape layer is fixed in the inner ring of the mineral compound layer. The main body of the conductor is twisted and arranged in the mica tape layer. Therefore, the outer protective sleeve, wrapping layer, filling layer, mineral compound layer and mica tape layer are assembled in a progressive manner. The wrapping layer is composed of a fireproof layer and an isolation strip. Therefore, the filling of the fireproof layer plays the role of fire protection. Thus, the protection capability is improved in the working process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a side view sectional view of the wear-resistant sleeve of this utility model.

[0019] Figure 3 This is a side view cross-sectional structural diagram of the wrapping layer of this utility model;

[0020] Figure 4 This is a side view of the mica strip layer structure of this utility model.

[0021] In the diagram: 1. Outer protective sleeve; 2. Wear-resistant sleeve; 3. Wrapping layer; 4. Filling layer; 5. Mineral compound layer; 6. Mica tape layer; 7. Conductor body; 8. Wear-resistant layer; 9. First adhesive layer; 10. Second adhesive layer; 11. Fireproof layer; 12. Isolation strip; 13. Positioning strip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 An embodiment of this utility model provides: a flexible insulated cable, including an outer protective sleeve 1 and a conductor body 7. The inner ring of the outer protective sleeve 1 is fixed with a wrapping layer 3, the inner ring of the wrapping layer 3 is fixed with a filling layer 4, the inner ring of the filling layer 4 is fixed with a mineral compound layer 5, the inner ring of the mineral compound layer 5 is fixed with a mica tape layer 6, the conductor body 7 is twisted and arranged in the mica tape layer 6, the outer protective sleeve 1 is covered with a wear-resistant sleeve 2, one end of the wear-resistant sleeve 2 is fixed with a first adhesive layer 9, the other end of the wear-resistant sleeve 2 is fixed with a second adhesive layer 10, and the outer wall of the wear-resistant sleeve 2 is coated with a wear-resistant layer 8.

[0024] The first adhesive layer 9 and the second adhesive layer 10 are bonded and fixed together, and the coating surface area between the first adhesive layer 9 and the second adhesive layer 10 is the same.

[0025] The wear-resistant layer 8 is coated on the outer wall of the wear-resistant sleeve 2 for wear protection, and the wear-resistant sleeve 2 is provided with ventilation holes.

[0026] The wrapping layer 3 includes a fireproof layer 11 and an isolation strip 12, with the fireproof layer 11 fixed in the middle position within the isolation strip 12.

[0027] The conductor body 7 can be evenly distributed inside the mica strip layer 6, and the conductor body 7 is composed of multiple strands of wire.

[0028] The outer diameter of the wrapping layer 3 is smaller than the inner diameter of the outer protective sleeve 1, and the outer diameter of the filling layer 4 is smaller than the inner diameter of the wrapping layer 3.

[0029] The outer diameter of the mineral compound layer 5 is smaller than the inner diameter of the filling layer 4, and positioning strips 13 are arranged in the mica strip layer 6 at the positions above and below the conductor body 7.

[0030] The positioning strips 13 are symmetrically distributed about the central axis of the conductor body 7, and the lateral length of the positioning strips 13 is the same as the length of the conductor body 7.

[0031] Furthermore, by combining existing technologies, the conductor body 7 is stranded in the mica tape layer 6, and the cable as a whole is equipped with a multi-layer design including the mica tape layer 6, the mineral compound layer 5, etc., and is also equipped with a fireproof layer 11 and an isolation strip 12, thus possessing corresponding flexible bending performance.

[0032] Working principle: First, during operation, a wrapping layer 3 is fixed to the inner ring of the outer protective sleeve 1, and a filling layer 4 is fixed to the inner ring of the wrapping layer 3. A mineral compound layer 5 is fixed to the inner ring of the filling layer 4, and a mica tape layer 6 is fixed in the inner ring of the mineral compound layer 5. The conductor body 7 is twisted and arranged in the mica tape layer 6. Therefore, the outer protective sleeve 1, wrapping layer 3, filling layer 4, mineral compound layer 5, and mica tape layer 6 are assembled in a progressive manner. The wrapping layer 3 is composed of a fireproof layer 11 and an isolation strip 12, which is used for fire isolation. At the same time, the wear-resistant sleeve 2 is wrapped around the outside of the outer protective sleeve 1. The first adhesive layer 9 and the second adhesive layer 10 are used to complete the wrapping of the wear-resistant sleeve 2. Meanwhile, a wear-resistant layer 8 is coated on the outer wall of the wear-resistant sleeve 2 for wear protection. Ventilation holes are arranged in the wear-resistant sleeve 2 so that the whole can be used normally.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A flexible insulated cable, comprising an outer protective sheath (1) and a conductor body (7), characterized in that: The outer protective sleeve (1) has a wrapping layer (3) fixed in the inner ring, a filling layer (4) fixed in the inner ring of the wrapping layer (3), a mineral compound layer (5) fixed in the inner ring of the filling layer (4), a mica tape layer (6) fixed in the inner ring of the mineral compound layer (5), and the conductor body (7) is twisted and arranged in the mica tape layer (6). The outer protective sleeve (1) is covered with a wear-resistant sleeve (2). One end of the wear-resistant sleeve (2) is fixed with a first adhesive layer (9), and the other end of the wear-resistant sleeve (2) is fixed with a second adhesive layer (10). The outer wall of the wear-resistant sleeve (2) is coated with a wear-resistant layer (8).

2. The flexible insulated cable according to claim 1, characterized in that: The first adhesive layer (9) and the second adhesive layer (10) are bonded together and fixed together, and the coating surface area between the first adhesive layer (9) and the second adhesive layer (10) is the same.

3. The flexible insulated cable according to claim 1, characterized in that: The wear-resistant layer (8) is coated on the outer wall of the wear-resistant sleeve (2) for wear protection, and the wear-resistant sleeve (2) is provided with ventilation holes.

4. The insulated cable with a flexible structure according to claim 1, characterized in that: The wrapping layer (3) includes a fireproof layer (11) and an isolation strip (12), with the fireproof layer (11) fixed in the middle position within the isolation strip (12).

5. The insulated cable with a flexible structure according to claim 1, characterized in that: The conductor body (7) can be evenly distributed inside the mica strip layer (6), and the conductor body (7) is composed of multiple strands of wire.

6. The insulated cable with a flexible structure according to claim 1, characterized in that: The outer diameter of the wrapping layer (3) is smaller than the inner diameter of the outer protective sleeve (1), and the outer diameter of the filling layer (4) is smaller than the inner diameter of the wrapping layer (3).

7. The insulated cable with a flexible structure according to claim 1, characterized in that: The outer diameter of the mineral compound layer (5) is smaller than the inner diameter of the filling layer (4), and the mica tape layer (6) has positioning strips (13) arranged above and below the conductor body (7).

8. The insulated cable with a flexible structure according to claim 7, characterized in that: The positioning strips (13) are symmetrically distributed about the central axis of the conductor body (7), and the lateral length of the positioning strips (13) is the same as the length of the conductor body (7).

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