Flexible power cable

Abstract

The utility model provides a flexible power cable, which comprises a cable body, a label layer is arranged on the surface of the cable body, a transparent heat-shrinkable sleeve is sleeved on the cable body at a position corresponding to the label layer, and the transparent heat-shrinkable sleeve covers the label layer. According to the flexible power cable, the label layer is wrapped and covered by the transparent heat-shrinkable sleeve, so that the label layer can be well protected, and the flexible power cable is convenient to manufacture.

Description

Technical Field

[0001] The utility model relates to the technical field of cable structures, in particular to a flexible power cable. Background Art

[0002] Flexible power cables are commonly used in power transmission, data transfer, communication control, and other applications. To distinguish between cable models, production batch numbers, and other information, flexible power cables are typically labeled with information (including cable model and production batch number) to prevent mismatching.

[0003] like Figure 1 and Figure 2 As shown, the existing practice is generally to set an adhesive layer (not shown) on one side surface of the label 51, and wrap the label 51 around the flexible power cable 5 so that the label 51 adheres to the surface of the flexible power cable 5 through the adhesive layer. At the same time, the two ends of the label 51 are also bonded together through the adhesive layer to fix the label 51 to the flexible power cable 5.

[0004] However, in the flexible power cable 5 of the above structure, although the label 51 is generally made of adhesive tape and has a certain degree of weather resistance, since the label 51 is directly exposed to the air, after long-term use, it is easy for the label 51 to be damaged, soaked by water, or fall off, resulting in loss of label information, affecting the subsequent identification of cable information. Utility Model Content

[0005] The purpose of the utility model is to provide a flexible power cable, which adopts a transparent heat shrink tubing to wrap and cover the label layer, which can not only provide a good protection effect on the label layer but also is easy to manufacture.

[0006] The utility model provides a flexible power cable, comprising a cable body, a label layer being provided on the surface of the cable body, a transparent heat shrink tubing being sleeved on a position of the cable body corresponding to the label layer, and the transparent heat shrink tubing covering the label layer.

[0007] In one achievable manner, a transparent protective layer is sandwiched between the label layer and the transparent heat shrinkable tube, the transparent protective layer covers the label layer, and the transparent heat shrinkable tube covers the transparent protective layer.

[0008] In one achievable manner, the thermal melting temperature of the transparent protective layer is greater than the shrinking temperature of the transparent heat shrinkable tube.

[0009] In one achievable manner, the transparent protective layer has a thickness of 0.5 mm to 1.5 mm.

[0010] In one achievable manner, the label layer is bonded and fixed to the transparent protective layer, and the transparent protective layer is bonded and fixed to the surface of the cable body.

[0011] In one achievable manner, the label layer is not bonded to the surface of the cable body.

[0012] In one feasible manner, along the axial direction of the cable body, the transparent protective layer includes a first end and a second end relative to each other, the first end and the second end of the transparent protective layer respectively extend to opposite sides of the label layer, and the first end and the second end of the transparent protective layer are respectively bonded and fixed to the surface of the cable body through an adhesive layer.

[0013] In one achievable manner, along the axial direction of the cable body, the length of the transparent heat shrinkable sleeve is greater than the length of the transparent protective layer, and opposite ends of the transparent heat shrinkable sleeve extend to opposite sides of the transparent protective layer respectively.

[0014] In one achievable manner, a first exhaust hole is provided on the label layer, and a second exhaust hole is provided on the transparent protective layer at a position corresponding to the first exhaust hole.

[0015] In one achievable manner, a positioning mark is provided on the surface of the cable body, the label layer is provided corresponding to the positioning mark, and the label layer covers the positioning mark.

[0016] The flexible power cable provided by the present invention is constructed by sheathing a transparent heat shrink tubing on the cable body and using the transparent heat shrink tubing to wrap and cover the label layer. This method not only better fixes the label layer and prevents the label layer from falling off, but also the transparent heat shrink tubing can completely isolate the label layer from the external environment, providing good protection for the label layer, preventing the label layer from being soaked by water and damaged, etc., ensuring the integrity of the label information and extending the service life of the label layer. Moreover, the transparent heat shrink tubing is a transparent structure and will not obstruct the label information on the label layer. At the same time, during assembly, it is only necessary to first set the label layer on the cable body, sheath the transparent heat shrink tubing on the cable body, and then heat the transparent heat shrink tubing to shrink the transparent heat shrink tubing to complete the assembly, so it is easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a flexible power cable in the prior art.

[0018] Figure 2 for Figure 1 Schematic cross-section of .

[0019] Figure 3This is a schematic structural diagram of a flexible power cable in an embodiment of the present utility model.

[0020] Figure 4 for Figure 3 Schematic diagram of the explosion structure.

[0021] Figure 5 for Figure 3 Schematic cross-section of .

[0022] Figure 6 for Figure 3 Schematic diagram of the longitudinal section.

[0023] Figure 7 This is a schematic structural diagram of an embodiment of the present invention when the transparent protective layer and the label layer have not yet been attached to the cable body. DETAILED DESCRIPTION

[0024] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] The terms "first", "second", "third", "fourth" and so on (if any) in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] The directional terms "up," "down," "left," "right," "front," "back," "top," and "bottom" (if any) used in the specification and claims of this utility model are defined by the positions of the structures in the drawings and the positions of the structures relative to each other, and are intended only for clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this utility model.

[0027] like Figures 3 to 6 As shown, an embodiment of the present invention provides a flexible power cable, including a cable body 1, wherein the cable body 1 includes an insulating protective layer (not shown) and a plurality of wires (not shown) arranged inside the insulating protective layer. A label layer 2 is provided on the surface of the cable body 1, and the outer surface of the label layer 2 (that is, the surface of the label layer 2 away from the cable body 1) is provided with coding information of the cable (the coding information includes the cable model, production batch number, etc.); the label layer 2 is generally made of paper, and the coding information is generally set on the surface of the label layer 2 by printing. A transparent heat shrink tubing 4 is provided on the cable body 1 at a position corresponding to the label layer 2. The transparent heat shrink tubing 4 is a tubular structure. The transparent heat shrink tubing 4 is sleeved on the outside of the label layer 2, and the transparent heat shrink tubing 4 completely covers the label layer 2, so as to wrap the label layer 2 inside the transparent heat shrink tubing 4.

[0028] The flexible power cable provided by the embodiment of the present invention is characterized by a transparent heat shrink tubing 4 being sleeved on the cable body 1 and the label layer 2 being wrapped and covered by the transparent heat shrink tubing 4. This method can not only better fix the label layer 2 and prevent the label layer 2 from falling off, but also the transparent heat shrink tubing 4 can completely isolate the label layer 2 from the external environment, providing good protection for the label layer 2, preventing the label layer 2 from being soaked by water and damaged, etc., ensuring the integrity of the label information, and extending the service life of the label layer 2. Moreover, the transparent heat shrink tubing 4 is a transparent structure and will not obstruct the label information on the label layer 2. At the same time, during assembly, it is only necessary to first set the label layer 2 on the cable body 1, sleeve the transparent heat shrink tubing 4 on the cable body 1, and then heat the transparent heat shrink tubing 4 to shrink the transparent heat shrink tubing 4 to complete the assembly, so the production is convenient.

[0029] As an embodiment, the cable body 1 is generally a cylindrical structure, and the label layer 2 is sleeved on the surface of the cable body 1. Depending on the size of the label layer 2, the label layer 2 can be bent into a cylindrical structure or a semi-circular ring structure, etc.; the transparent heat shrink tube 4 is a cylindrical structure.

[0030] like Figures 4 to 6 As shown, as an embodiment, a transparent protective layer 3 is sandwiched between the label layer 2 and the transparent heat shrinkable tube 4. The transparent protective layer 3 is bent into a tubular structure (specifically a cylindrical structure). The transparent protective layer 3 completely covers the label layer 2, and the transparent heat shrinkable tube 4 completely covers the transparent protective layer 3.

[0031] Specifically, by providing the transparent protective layer 3, on the one hand, the transparent protective layer 3 can further protect the label layer 2 during subsequent use; on the other hand, the transparent protective layer 3 can protect the label layer 2 during the production process (since the transparent heat shrinkable tube 4 needs to be heated and shrunk, by providing the transparent protective layer 3, the transparent protective layer 3 can play an isolation role, thereby reducing the unclear label information of the label layer 2 after being heated during the heating process, and at the same time reducing or avoiding the transparent heat shrinkable tube 4 causing wrinkles in the label layer 2 during the shrinkage process); on the other hand, the label layer 2 can be adhered to the transparent protective layer 3 in advance, and then the transparent protective layer 3 can be adhered to the surface of the cable body 1 to facilitate production. At the same time, the transparent protective layer 3 can also protect the label layer 2 before the label layer 2 is attached to the surface of the cable body 1.

[0032] As an embodiment, the thickness of the transparent protective layer 3 is 0.5 mm to 1.5 mm.

[0033] As an embodiment, the thermal melting temperature of the transparent protective layer 3 is greater than the shrinkage temperature (i.e., the heating shrinkage temperature) of the transparent heat shrinkable tube 4, thereby avoiding thermal melting shrinkage or deformation of the transparent protective layer 3 during the heating process of the transparent heat shrinkable tube 4.

[0034] As an embodiment, the shrinking temperature of the transparent heat shrink tubing 4 can be 84° C. to 120° C. The transparent protective layer 3 can be made of polyimide (PI), polyphenylene sulfide (PPS), or polyamide-imide (PAI), and the hot-melt temperature of the transparent protective layer 3 is generally above 150° C.

[0035] like Figures 4 to 6 As shown, as an embodiment, the label layer 2 is bonded and fixed to the transparent protective layer 3 (the adhesive layer between the label layer 2 and the transparent protective layer 3 is not shown in the figure), and the transparent protective layer 3 is bonded and fixed to the surface of the cable body 1.

[0036] Specifically, the transparent protective layer 3 is larger than the label layer 2. The entire outer surface of the label layer 2 is bonded to the inner surface of the transparent protective layer 3 (i.e., the surface of the transparent protective layer 3 closest to the cable body 1). The portion of the transparent protective layer 3 not covered by the label layer 2 is bonded to the surface of the cable body 1. During production, the label layer 2 is pre-bonded to the transparent protective layer 3, and then the transparent protective layer 3 is bonded to the surface of the cable body 1 to facilitate production.

[0037] like Figure 6 As shown in the figure, as one embodiment, along the axial direction X of the cable body 1 (i.e., the longitudinal direction of the cable body 1), the transparent protective layer 3 includes opposing first and second ends 31, 32. The first and second ends 31, 32 of the transparent protective layer 3 extend to opposite sides of the label layer 2, respectively. The inner surfaces of the first and second ends 31, 32 of the transparent protective layer 3 are respectively bonded to the surface of the cable body 1 via adhesive layers 33. This arrangement not only facilitates manufacturing but also reduces the area required for the adhesive layer 33, thereby reducing costs. Furthermore, since the transparent heat-shrinkable tube 4 significantly shrinks from its sides toward its center upon heating, the adhesive layers 33 disposed at both ends of the transparent protective layer 3 effectively resist shrinkage and deformation of the heat-shrinkable tube 4, thereby preventing deformation of the transparent protective layer 3 and the label layer 2. Of course, in other embodiments, the transparent protective layer 3 and the cable body 1 may be bonded using other bonding methods (for example, where the opposing ends of the transparent protective layer 3 are bonded to the surface of the cable body 1 along the circumference of the cable body 1 via adhesive layers).

[0038] Specifically, if Figure 7 As shown, when the transparent protective layer 3 and the label layer 2 have not yet been attached to the cable body 1, the transparent protective layer 3 and the label layer 2 are planar, the label layer 2 is pre-adhered to the transparent protective layer 3, and the transparent protective layer 3 is provided with an adhesive layer 33 on the surfaces of the label layer 2 on both sides opposite to each other; Figure 4 and Figure 6As shown, after the transparent protective layer 3 and the label layer 2 are attached to the cable body 1, the transparent protective layer 3 and the label layer 2 are bent into a cylindrical structure, and the opposite ends of the transparent protective layer 3 are respectively adhered to the surface of the cable body 1 through the adhesive layer 33.

[0039] As an embodiment, along the circumferential direction of the cable body 1 , the size of the label layer 2 is smaller than or equal to the size of the transparent protective layer 3 .

[0040] As an embodiment, the label layer 2 is not bonded to the surface of the cable body 1 , that is, no adhesive layer is provided on the inner surface of the label layer 2 , thereby saving costs and simplifying the manufacturing process.

[0041] like Figure 4 As shown, as an embodiment, a first exhaust hole 20 is provided on the label layer 2, and a second exhaust hole 30 is provided on the transparent protective layer 3 at a position corresponding to the first exhaust hole 20. The number of the first exhaust hole 20 and the second exhaust hole 30 can be one or more respectively.

[0042] Specifically, after the transparent protective layer 3 and label layer 2 are attached to the cable body 1, the label layer 2 may not be completely adhered to the surface of the cable body 1, and a gap may exist between the two. However, since the ends of the transparent protective layer 3 are adhered to the surface of the cable body 1 by the adhesive layer 33, that is, the ends of the transparent protective layer 3 and the surface of the cable body 1 form a sealed structure, the gas in this gap cannot be discharged through the two sides of the label layer 2. By providing the first vent 20 and the second vent 30, during the heating process of the transparent heat shrinkable sleeve 4, the residual gas between the label layer 2 and the surface of the cable body 1 can be discharged through the first vent 20, the second vent 30, and the gap between the transparent protective layer 3 and the transparent heat shrinkable sleeve 4 after heating (the transparent heat shrinkable sleeve 4 has a larger diameter before being heated and shrunk, so there will be a gap between the transparent protective layer 3 and the transparent heat shrinkable sleeve 4), thereby better adhering the label layer 2 to the surface of the cable body 1.

[0043] like Figure 4 and Figure 6 As shown, as an embodiment, along the axial direction X of the cable body 1, the length of the transparent heat shrinkable tube 4 is greater than the length of the transparent protective layer 3, and the opposite ends of the transparent heat shrinkable tube 4 extend to the opposite sides of the transparent protective layer 3 respectively, so as to have a good wrapping effect on the transparent protective layer 3.

[0044] like Figure 4As shown, as an embodiment, a positioning mark 11 is provided on the surface of the cable body 1, and the label layer 2 is provided corresponding to the positioning mark 11, and the label layer 2 covers the positioning mark 11. Specifically, the positioning mark 11 is used for positioning and installing the label layer 2 (that is, the label layer 2 is provided at the positioning mark 11), so as to facilitate production and ensure product consistency (that is, ensure that the position of the label layer 2 on each flexible power cable is the same); and, since the label layer 2 covers the positioning mark 11, that is, the positioning mark 11 is covered, it does not affect the aesthetics. The positioning mark 11 can specifically be an identification line provided on the surface of the cable body 1 (for example, the cable body 1 is black and the identification line is white).

[0045] As an embodiment, the assembly steps of the flexible power cable may be:

[0046] The label layer 2 is pre-adhered to the transparent protective layer 3. The transparent protective layer 3 and label layer 2 are then attached to the cable body 1. The transparent protective layer 3 and label layer 2 are bent into a cylindrical structure, and the opposite ends of the transparent protective layer 3 are adhered to the surface of the cable body 1 via the adhesive layer 33. A transparent heat shrink tubing 4 is placed over the cable body 1 and moved to correspond to the transparent protective layer 3, with the opposite ends of the tubing extending to opposite sides of the transparent protective layer 3. The transparent heat shrink tubing 4 is then heated using a heating device (such as a heat gun). The heat shrink tubing 4 shrinks upon heating, thereby tightly encircling the transparent protective layer 3 and label layer 2, completing the assembly.

[0047] The flexible power cable provided by the embodiment of the present invention is characterized by a transparent heat shrink tubing 4 being sleeved on the cable body 1 and the label layer 2 being wrapped and covered by the transparent heat shrink tubing 4. This method can not only better fix the label layer 2 and prevent the label layer 2 from falling off, but also the transparent heat shrink tubing 4 can completely isolate the label layer 2 from the external environment, providing good protection for the label layer 2, preventing the label layer 2 from being soaked by water and damaged, etc., ensuring the integrity of the label information, and extending the service life of the label layer 2. Moreover, the transparent heat shrink tubing 4 is a transparent structure and will not obstruct the label information on the label layer 2. At the same time, during assembly, it is only necessary to first set the label layer 2 on the cable body 1, sleeve the transparent heat shrink tubing 4 on the cable body 1, and then heat the transparent heat shrink tubing 4 to shrink the transparent heat shrink tubing 4 to complete the assembly, so the production is convenient.

[0048] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A flexible power cable, characterized in that: The invention comprises a cable body (1), a label layer (2) is provided on the surface of the cable body (1), a transparent heat shrinkable sleeve (4) is sleeved on a position on the cable body (1) corresponding to the label layer (2), and the transparent heat shrinkable sleeve (4) covers the label layer (2); a transparent protective layer (3) is sandwiched between the label layer (2) and the transparent heat shrinkable sleeve (4), the transparent protective layer (3) covers the label layer (2), and the transparent heat shrinkable sleeve (4) covers the transparent protective layer (3).

2. The flexible power cable according to claim 1, characterized in that: The thermal melting temperature of the transparent protective layer (3) is greater than the shrinking temperature of the transparent heat shrinkable sleeve (4).

3. The flexible power cable according to claim 1, characterized in that: The thickness of the transparent protective layer (3) is 0.5 mm to 1.5 mm.

4. The flexible power cable according to claim 1, characterized in that: The label layer (2) is bonded and fixed to the transparent protective layer (3), and the transparent protective layer (3) is bonded and fixed to the surface of the cable body (1).

5. The flexible power cable according to claim 4, characterized in that: The label layer (2) is not bonded to the surface of the cable body (1).

6. The flexible power cable according to claim 4, characterized in that: Along the axial direction (X) of the cable body (1), the transparent protective layer (3) comprises a first end (31) and a second end (32) opposite to each other, the first end (31) and the second end (32) of the transparent protective layer (3) respectively extending to opposite sides of the label layer (2), and the first end (31) and the second end (32) of the transparent protective layer (3) are respectively bonded and fixed to the surface of the cable body (1) via an adhesive layer (33).

7. The flexible power cable according to claim 1, characterized in that: Along the axial direction (X) of the cable body (1), the length of the transparent heat shrinkable tube (4) is greater than the length of the transparent protective layer (3), and the opposite ends of the transparent heat shrinkable tube (4) respectively extend to the opposite sides of the transparent protective layer (3).

8. The flexible power cable according to claim 1, characterized in that: The label layer (2) is provided with a first exhaust hole (20), and the transparent protective layer (3) is provided with a second exhaust hole (30) at a position corresponding to the first exhaust hole (20).

9. The flexible power cable according to any one of claims 1 to 8, characterized in that: A positioning mark (11) is provided on the surface of the cable body (1), the label layer (2) is provided corresponding to the positioning mark (11), and the label layer (2) covers the positioning mark (11).

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