Compensating cable with high tensile strength

Abstract

The utility model discloses a compensation cable with high tensile strength, which comprises a supporting assembly, the supporting assembly adopts a cross-shaped structure, wire cores are arranged at four corners of the supporting assembly, a belting layer, an outer shielding layer and a sheath are sequentially sleeved on the outer side of the supporting assembly, and a plurality of metal tensile reinforcing cores are arranged on the supporting assembly. By arranging the supporting assembly and the metal tensile reinforcing cores, it can be guaranteed that each insulating wire core freely slides in an independent space, cable length changes caused by thermal expansion are effectively compensated, and the five metal tensile reinforcing cores are evenly distributed in the nylon supporting assembly and can bear extra tensile force borne by the cable in the using process; and sufficient tensile strength of the cable is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of compensating cables, and particularly relates to a compensating cable with high tensile strength. Background Technique

[0002] The compensating cable can freely expand and contract in a high-temperature environment to compensate for the length change caused by thermal expansion, which can effectively avoid damage to the equipment and the cable or hinder the normal operation of the equipment. On the other hand, the compensating cable can also absorb the mechanical stress caused by the dragging of the moving equipment, thereby protecting the equipment from damage and extending the service life of the equipment.

[0003] To sum up, through its expansibility and protection function, the compensating cable plays a key role in an environment with large temperature changes, ensuring the stable operation of the equipment and the accurate transmission of signals.

[0004] However, due to its small size and light structural weight, traditional compensating cables generally cannot bear a large tensile strength. With the continuous enhancement of the functions of compensating cables, their structural weight has also been increasing. In addition, when the compensating cable is used in mobile electrical appliances, the cable needs to bear a certain tensile strength. Since ordinary compensating cables do not have a special anti-tensile structure, the cable conductor will be broken or the structure will be damaged during long-term stretching and dragging use. Therefore, we propose a compensating cable with high tensile strength. Content of the Utility Model

[0005] The purpose of the utility model is to provide a compensating cable with high tensile strength to solve the problems raised in the above background technique.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A compensating cable with high tensile strength includes a support component. The support component adopts a cross-shaped structure, and wire cores are arranged at its four corners. A tape layer, an outer shielding layer and a sheath are sequentially sleeved outside the support component. A plurality of metal tensile strengthening cores are arranged on the support component.

[0008] Preferably, the wire core includes a conductor, and an insulating layer and an inner shielding layer are sequentially sleeved outside the conductor.

[0009] Preferably, the conductor is formed by twisting a plurality of soft copper-nickel alloy wires and / or soft copper wires in the same direction. The insulating layer adopts a polytetrafluoroethylene insulating layer with a heat resistance of 260°C. The inner shielding layer is formed by overlapping and winding a 0.02 mm thick copper foil tape outside the insulating layer to form an inner shielding unit.

[0010] Preferably, the support component is made of nylon material formed by hot extrusion. A plurality of metal tensile strengthening cores are arranged in its center and in the four directions of up, down, left and right. The metal tensile strengthening cores adopt 6-series aluminum alloy wires or stainless steel wires.

[0011] Preferably, the wrapping tape layer is a semi-conductive nylon wrapping tape, which is wound and tied around the outer sides of the support assembly and the core.

[0012] Preferably, the outer shielding layer adopts a structure formed by braiding copper wires with a copper wire diameter of 0.15 mm and a braiding density of not less than 80%.

[0013] Preferably, the sheath is made of polytetrafluoroethylene material with a heat resistance of 260 °C.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0015] In the present utility model, by providing the support assembly and the metal tensile strengthening core, it can ensure that each insulated core freely slides in an independent space, effectively compensating for the change in the cable length caused by thermal expansion. The five metal tensile strengthening cores are evenly distributed inside the nylon support assembly, which can bear the additional tensile force borne by the cable during use, ensuring sufficient tensile strength of the cable. At the same time, the conductor adopts two metal materials, which are used to connect the positive and negative poles of the thermocouple of the electrical equipment respectively. Due to the different resistivity of the conductor materials, a high thermal electromotive force difference can be formed, which is beneficial to improving the measurement accuracy. Moreover, the sheath is made of polytetrafluoroethylene material with a heat resistance of 260 °C, which can be applied to a high-temperature environment of up to 260 °C, having high heat resistance and thermal aging resistance. And, by adopting a double-layer shielding structure, the cable has strong electromagnetic interference resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] In the figure: 1, support assembly; 11, metal tensile strengthening core; 2, core; 21, conductor; 22, insulating layer; 23, inner shielding layer; 3, wrapping tape layer; 4, outer shielding layer; 5, sheath. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following details the specific embodiments of the present utility model.

[0019] The "range" disclosed by the present utility model is defined in the form of a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundaries of a particular range. The ranges defined in this way can include the end values or not include the end values, and can be combined arbitrarily, that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 10 to 50 is listed for a specific parameter, ranges of 10 to 40 and 20 to 50 are also contemplated. In addition, if the minimum range values 1 and 2 are listed, and if the maximum range values 3, 4, and 5 are listed, then the following ranges are all contemplated: 1 to 3, 1 to 4, 1 to 5, 2 to 3, 2 to 4, and 2 to 5. In this application, unless otherwise stated, the numerical range "a to b" represents an abbreviated representation of any real number combination between a and b, where both a and b are real numbers. For example, the numerical range "0 to 5" means that all real numbers between "0 to 5" have been fully listed herein, and "0 to 5" is only an abbreviated representation of these numerical combinations.

[0020] If there is no special instruction, all embodiments and optional embodiments of this application can be combined with each other to form a new technical solution.

[0021] If there is no special instruction, all technical features and optional technical features of this application can be combined with each other to form a new technical solution.

[0022] If there is no special instruction, all steps of this application can be carried out sequentially or randomly, and preferably sequentially. For example, the method includes steps (a) and (b), which means that the method can include steps (a) and (b) carried out sequentially, or can also include steps (b) and (a) carried out sequentially. For example, it is mentioned that the method may further include step (c), which means that step (c) can be added to the method in any order. For example, the method can include steps (a), (b), and (c), or can also include steps (a), (c), and (b), or can also include steps (c), (a), and (b), etc.

[0023] If there is no special instruction, the "including" and "containing" mentioned in this application mean open-ended or can also be closed-ended. For example, the "including" and "containing" can mean that other components not listed can also be included or contained, or can only include or contain the listed components.

[0024] If there is no special instruction, the reaction is carried out under normal temperature and normal pressure conditions.

[0025] If there is no special instruction, all parts or percentages are by weight or weight percentage.

[0026] In the present utility model, all the substances used are known substances, which can be purchased or synthesized by known methods.

[0027] In the present utility model, all the devices or equipment used are conventional devices or equipment known in the field and can be purchased.

[0028] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Embodiment:

[0030] A compensating cable with high tensile strength, as Figure 1 shown, includes a support assembly 1. The support assembly 1 adopts a cross-shaped structure, and wire cores 2 are provided at all four corners thereof. A tape layer 3, an outer shield layer 4 and a sheath 5 are sequentially sleeved outside the support assembly 1, and a plurality of metal tensile strengthening cores 11 are provided on the support assembly 1.

[0031] In a possible implementation manner, the wire core 2 includes a conductor 21, and an insulating layer 22 and an inner shield layer 23 are sequentially sleeved outside the conductor 21.

[0032] In a possible implementation manner, the conductor 21 is formed by twisting a plurality of soft fine copper-nickel alloy wires and / or soft fine copper wires in the same direction, and the inner shield layer 23 is formed by overlapping and winding a 0.02 mm thick copper foil tape outside the insulating layer 22 to form an inner shield unit.

[0033] In a possible implementation manner, the conductor 21 is formed by twisting a plurality of soft fine copper wires in the same direction. The copper wires can be tinned or not tinned, and the cross-sectional diameters include: 0.5 mm 2 ﹑ 1 mm 2 ﹑ 1.5 mm 2 ﹑ 2.5 mm 2 ﹑ 4 mm 2 。

[0034] In a possible implementation manner, the conductor 21 is formed by twisting a plurality of soft fine copper-nickel alloy wires in the same direction, and the conductor cross-section includes: 0.5 mm 2 ﹑ 1 mm 2 ﹑ 1.5 mm 2 ﹑ 2.5 mm 2 ﹑ 4 mm 2 。

[0035] In a possible implementation manner, the insulating layer 22 adopts a polytetrafluoroethylene insulating layer with a heat resistance of 260 °C. The multi-core insulation uses color identification, and the identification colors include: white, black, gray, red, etc.; the insulation thickness is 1.0 - 1.2 mm

[0036] In a possible implementation, the support component 1 is made of nylon material formed by hot extrusion. A number of metal tensile reinforcing cores 11 are arranged in its center and in the four directions of up, down, left, and right. The metal tensile reinforcing cores 11 are made of 6-series aluminum alloy wires or stainless steel wires.

[0037] In a possible implementation, when the support component 1 is formed by hot extrusion, a certain pitch can be pre-twisted. The pre-twisted pitch and direction are consistent with the insulation stranding pitch and direction.

[0038] In a possible implementation, four inner shield units are placed at the four gaps of the support component 1 and stranded together to form a cable core, and are wrapped and bundled with a semi-conductive nylon tape to form a tape layer 3.

[0039] In a possible implementation, the tape layer 3 is a semi-conductive nylon tape, which is wrapped and bundled on the outside of the support component 1 and the wire core 2.

[0040] In a possible implementation, the outer shield layer 4 is formed by copper wire braiding. The diameter of the copper wire is 0.15 mm, and the braiding density is not less than 80%.

[0041] In a possible implementation, the sheath 5 is made of polytetrafluoroethylene material with a heat resistance of 260 °C.

[0042] By adopting the above technical solutions:

[0043] 1. The conductor 21 is made of two metal materials, which are used to connect the positive and negative poles of the thermocouple of the electrical equipment respectively. Due to the different resistivity of the conductor materials, a high thermal electromotive force difference can be formed, which is beneficial to improving the measurement accuracy.

[0044] 2. The materials of the insulating layer 22 and the sheath 5 are made of polytetrafluoroethylene material with a heat resistance of 260 °C, which can be applied to a high-temperature environment of up to 260 °C and have high heat resistance and thermal aging resistance.

[0045] 3. The support component 2 and the internal metal tensile reinforcing core 21. Due to the smooth inner wall, it can ensure that each insulated wire core slides freely in an independent space, effectively compensating for the change in the cable length caused by thermal expansion. The five metal tensile reinforcing cores 21 are evenly distributed inside the nylon support component 1, which can bear the additional tension during the use of the cable and ensure the sufficient tensile strength of the cable.

[0046] 4. The double shielding structure of the insulated outer copper foil inner shield layer 23 and the copper wire braided outer shield layer 4 outside the cable core enables the cable to have strong electromagnetic interference resistance.

[0047] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compensating cable with high tensile strength, characterized in that: It includes a support component (1), the support component (1) adopts a cross-shaped structure, and wire cores (2) are provided at its four corners. A tape layer (3), an outer shield layer (4) and a sheath (5) are sequentially sleeved outside the support component (1), and a plurality of metal tensile strengthening cores (11) are provided on the support component (1).

2. The compensating cable with high tensile strength according to claim 1, wherein: The wire core (2) includes a conductor (21), and an insulating layer (22) and an inner shield layer (23) are sequentially sleeved outside the conductor (21).

3. The compensating cable with high tensile strength according to claim 2, characterized in that: The conductor (21) is formed by twisting a plurality of soft fine copper-nickel alloy wires and / or soft fine copper wires in the same direction. The insulating layer (22) adopts a polytetrafluoroethylene insulating layer with a heat resistance of 260 °C, and the inner shield layer (23) is formed by overlapping and winding a 0.02 mm thick copper foil tape outside the insulating layer (22) to form an inner shield unit.

4. The compensating cable with high tensile strength according to claim 1, wherein: The support component (1) is made of nylon material formed by hot extrusion. A plurality of metal tensile strengthening cores (11) are arranged in its center and in the four directions of up, down, left and right. The metal tensile strengthening cores (11) adopt 6-series aluminum alloy wires or stainless steel wires.

5. The compensating cable with high tensile strength according to claim 1, wherein: The tape layer (3) is a semi-conductive nylon tape, which is wound and tied outside the support component (1) and the wire core (2).

6. The compensating cable with high tensile strength according to claim 1, characterized in that: The outer shield layer (4) adopts a structure formed by braiding copper wires, the diameter of the copper wires is 0.15 mm, and the braiding density is not less than 80%.

7. The compensating cable with high tensile strength as claimed in claim 1, wherein: The sheath (5) adopts a polytetrafluoroethylene material with a heat resistance of 260 °C.

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