Anti-electromagnetic interference oscilloscope connecting cable

Abstract

The utility model relates to the technical field of transmission cables, in particular to an anti-electromagnetic interference oscilloscope connecting cable, which comprises an outer coating layer and a transmission line group arranged in the outer coating layer, the transmission line group comprises a plurality of groups of coaxial lines and core wires, and the core wire is arranged between every two groups of coaxial lines in an abutting manner. A shielding layer group is further coated on the periphery of the transmission line group and located in the outer coating layer, a plurality of groups of coaxial lines and core wires are arranged, and the core wires are arranged between every two groups of coaxial lines in an abutting mode, so that stress is more uniform when the connecting cable is bent, the service life of the connecting cable is further effectively prolonged, the shielding layer group is further coated on the periphery of the transmission line group, and the service life of the connecting cable is prolonged. The total shielding rate of the connecting cable can be effectively improved, the connecting cable is further prevented from being interfered in the use process to influence experimental data, the periphery of the shielding layer group is coated with the outer coating layer, the wear resistance of the connecting cable is further effectively improved, the working conditions of faults or poor performance of the test cable are effectively reduced, and the test efficiency is improved. And the oscilloscope test experiment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of transmission cables, in particular to an oscilloscope connecting cable with electromagnetic interference resistance. BACKGROUND

[0002] The oscilloscope is an electronic measuring instrument used for observing, measuring and analyzing electric signals. The oscilloscope is mainly applied to industrial control fields such as electronic manufacturing and power systems, and a connecting test cable is an important component of the oscilloscope. The structure of the connecting test cable is different according to different uses of the oscilloscope. In the prior art, the anti-interference ability and the cable flexibility of the connecting test cable are poor, so that the cable is easily damaged or the test result is interfered with during use, and the problems of low measurement accuracy and poor test efficiency exist. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above technical problems, the application provides an oscilloscope connecting cable with electromagnetic interference resistance, which comprises an outer layer and a transmission line group arranged in the outer layer. The transmission line group comprises a plurality of coaxial lines and a core wire. The core wire is arranged between every two coaxial lines. A shielding layer group is arranged on the outer periphery of the transmission line group and in the outer layer. The working condition of cable failure or poor performance is effectively reduced, and the test efficiency of the oscilloscope is improved.

[0004] Preferably, the coaxial line comprises a first conductor. A first inner layer is arranged on the outer periphery of the first conductor. A first insulating layer is arranged between the first conductor and the first inner layer. The test cable has good electromagnetic shielding performance.

[0005] Preferably, the core wire comprises a plurality of second conductors. An elastic filler is filled between the second conductors. A second insulating layer is arranged on the outer periphery of the second conductors. The outer shape of the connecting cable is ensured to be round, and the stress of the connecting cable is more uniform.

[0006] Preferably, the shielding layer group comprises a first PTFE tape layer, an inclined shielding layer and a second PTFE tape layer arranged on the transmission line group in sequence. The shielding effectiveness of the connecting cable is effectively improved.

[0007] Preferably, the first insulating layer is made of foamed PE material. The relative dielectric constant of the first insulating layer is effectively reduced.

[0008] Preferably, the first inner layer and the second insulating layer are both made of TPEE insulating material. The bending resistance of the connecting cable is improved.

[0009] Preferably, the diameter of the first conductor is 0.15 mm.

[0010] Preferably, the second conductor has a diameter of 0.08mm.

[0011] Preferably, the outer layer is made of PVC material to improve the softness of the connecting cable.

[0012] Preferably, the first conductor and the second conductor are made of silver-plated stranded soft copper wire material to improve the conductivity of the connecting cable and effectively improve the transmission performance of the connecting cable.

[0013] As can be seen from the above, the application can achieve the following beneficial effects: the outer layer and the transmission line group arranged in the outer layer, the transmission line group comprising a plurality of coaxial lines and core wires, the core wire being arranged between every two groups of coaxial lines, and the shielding layer group being arranged on the outer periphery of the transmission line group and in the outer layer, the plurality of coaxial lines and core wires, and the core wire arranged between every two groups of coaxial lines, make the stress more uniform when the connecting cable is bent, thereby effectively improving the service life of the connecting cable, the shielding layer group arranged on the outer periphery of the transmission line group effectively improves the total shielding rate of the connecting cable, thereby avoiding the influence of interference on experimental data during use of the connecting cable, and the outer layer arranged on the outer periphery of the shielding layer group effectively improves the wear resistance and bending resistance of the connecting cable, thereby effectively reducing the working conditions of faulty or poor performance of the test cable and improving the efficiency of oscilloscope test experiments. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are only part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0015] Figure 1 The structure of the anti-electromagnetic interference oscilloscope connecting cable of the embodiments of the present application is shown in the figure.

[0016] REFERENCE NUMERALS

[0017] 10, outer layer; 20, transmission line group; 30, shielding layer group; 21, coaxial line; 22, core wire; 211, first conductor; 212, first inner layer; 213, first insulation layer; 221, second conductor; 222, elastic filler; 223, second insulation layer; 31, first PTFE tape layer; 32, inclined shielding layer; 33, second PTFE tape layer. DETAILED DESCRIPTION

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] Example

[0020] To address the aforementioned technical problems, this embodiment provides an electromagnetic interference-resistant oscilloscope connection cable, such as... Figure 1 As shown, the cable includes an outer sheath 10 and a transmission line group 20 disposed within the outer sheath 10. The transmission line group 20 includes several sets of coaxial cables 21 and core wires 22, with core wires 22 abutting between every two sets of coaxial cables 21. A shielding layer group 30 is also wrapped around the transmission line group 20 and located within the outer sheath 10. By providing several sets of coaxial cables 21 and core wires 22, with core wires 22 abutting between every two sets of coaxial cables 21, the stress on the connecting cable is more even when it bends, thereby effectively improving the service life of the connecting cable. Furthermore, by wrapping the transmission line group 20 with the shielding layer group 30, the overall shielding rate of the connecting cable is effectively improved, thereby preventing the connecting cable from being affected by interference during use and thus avoiding impact on experimental data. Finally, by wrapping the shielding layer group 30 with the outer sheath 10, the wear resistance and bending resistance of the connecting cable are effectively improved, thereby effectively reducing the failure or poor performance of the test cable and improving the efficiency of oscilloscope testing experiments.

[0021] Specifically, the coaxial cable 21 includes a first conductor 211, a first inner sheath 212 covering the outer periphery of the first conductor 211, and a first insulating layer 213 disposed between the first conductor 211 and the first inner sheath 212. By covering the first conductor 211 with the first inner sheath 212, the tear resistance of the coaxial cable 21 can be effectively improved, thereby ensuring that the first conductor 211 inside the coaxial cable 21 is not easily damaged. Furthermore, by disposing of the first insulating layer 213 between the first conductor 211 and the first inner sheath 212, interference can be avoided during the operation of the coaxial cable 21, ensuring the accuracy of cable measurement and enabling the test cable to have good electromagnetic shielding performance.

[0022] Further, the core wire 22 includes a plurality of second conductors 221, the plurality of second conductors 221 are filled with an elastic filler 222, and the plurality of second conductors 221 are covered with a second insulating layer 223. The plurality of second conductors 221 are divided into two groups, each group having eight core wires 22, by filling the plurality of second conductors 221 with the elastic filler 222. The originally loose core wire structure is tightly formed, and the gap is filled with a reinforced PP rope. The final cable shape of the core wire 22 is more rounded, the internal core wire 22 is more uniform when the connecting cable is bent, and the service life of the connecting cable is improved. The core wire 21 is prevented from being disturbed during work, the cable measurement accuracy is ensured, the connecting cable shape is ensured to be round, and the connecting cable is more uniformly stressed.

[0023] In the above scheme, the shielding layer group 30 includes a first PTFE tape layer 31, an oblique shielding layer 32, and a second PTFE tape layer 33 which are sequentially wrapped on the transmission line group 20. The shielding layer group 30 is formed by the first PTFE tape layer 31, the oblique shielding layer 32, and the second PTFE tape layer 33. The low friction coefficient and self-lubricating property of the PTFE tape can increase the bending resistance of the cable. The double-layer oblique wrapping structure can effectively improve the shielding rate of the connecting cable without increasing the OD of the wire, and optimize the shielding effectiveness of the connecting cable.

[0024] In order to improve the bending resistance of the coaxial cable, as a preferred embodiment, the first insulating layer 213 is made of foamed PE material. When the foamed PE material is used on the coaxial cable 21, the high foaming degree can make the relative dielectric constant of the insulation small, so that the coaxial cable 21 can be small and soft while being more resistant to bending, and the relative dielectric constant of the first insulating layer 213 is effectively reduced.

[0025] Specifically, the first inner sheath layer 212 and the second insulating layer 223 are both made of TPEE insulating material. When the TPEE insulating material is used on the cable, the tensile strength and tear resistance of the cable can be effectively improved, so that the cable is not easy to break during use, and the overall bending resistance of the cable is effectively improved, and the bending resistance of the connecting cable is improved.

[0026] As a preferred embodiment, the wire diameter of the first conductor 211 is 0.15 mm.

[0027] As a preferred embodiment, the wire diameter of the second conductor 221 is 0.08 mm.

[0028] Further, the outer layer 10 is made of PVC material. By coating the connecting cable with the outer layer 10 made of soft and wear-resistant PVC material, the connecting cable is made softer, and the service life of the wire is effectively improved.

[0029] In the above scheme, the first conductor 211 and the second conductor 221 are made of silver-plated stranded soft copper wire material, so that the connecting cable has high efficient signal transmission and electromagnetic interference shielding capability, and the conductivity of the connecting cable is improved, and the transmission performance of the connecting cable is effectively improved.

[0030] In summary, in one or more embodiments of the present application, the outer layer and the transmission line group arranged in the outer layer are provided, the transmission line group includes a plurality of coaxial lines and core wires, and the core wires are arranged between every two coaxial lines. A shielding layer group is coated on the outer periphery of the transmission line group and located in the outer layer. By arranging a plurality of coaxial lines and core wires, and arranging core wires between every two coaxial lines, the stress of the connecting cable is more uniform when it is bent, thereby effectively improving the service life of the connecting cable. By coating the shielding layer group on the outer periphery of the transmission line group, the total shielding rate of the connecting cable can be effectively improved, thereby avoiding the influence of interference on experimental data during use of the connecting cable. By coating the outer layer on the outer periphery of the shielding layer group, the wear resistance and bending resistance of the connecting cable are effectively improved, thereby effectively reducing the working condition of the test cable failure or poor performance, improving the efficiency of the oscilloscope test experiment.

[0031] The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solutions. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-mentioned embodiments shall be included in the protection scope of the technical solutions.

Claims

1. An electromagnetic interference resistant oscilloscope connection cable, characterized by: The application relates to a coaxial cable, which comprises an outer covering layer (10) and a transmission line group (20) arranged in the outer covering layer (10), wherein the transmission line group (20) comprises a plurality of coaxial lines (21) and core wires (22), the core wires (22) are arranged between every two groups of the coaxial lines (21), and a shielding layer group (30) is further arranged outside the transmission line group (20) and in the outer covering layer (10).

2. The electromagnetic interference resistant oscilloscope connection cable of claim 1, wherein: The coaxial line (21) comprises a first conductor (211), a first inner covering layer (212) is arranged outside the first conductor (211), and a first insulating layer (213) is further arranged between the first conductor (211) and the first inner covering layer (212).

3. The electromagnetic interference resistant oscilloscope connection cable of claim 2, wherein: The core wire (22) comprises a plurality of second conductors (221), an elastic filler (222) is filled between the second conductors (221), and a second insulating layer (223) is arranged outside the second conductors (221).

4. The electromagnetic interference resistant oscilloscope connection cable of claim 1, wherein: The shielding layer group (30) comprises a first PTFE tape layer (31), an inclined shielding layer (32) and a second PTFE tape layer (33) which are sequentially arranged outside the transmission line group (20).

5. The electromagnetic interference resistant oscilloscope connection cable of claim 2, wherein: The first insulating layer (213) is made of foamed PE material.

6. The electromagnetic interference resistant oscilloscope connection cable of claim 3, wherein: The first inner covering layer (212) and the second insulating layer (223) are both made of TPEE insulating material.

7. The electromagnetic interference resistant oscilloscope connection cable of claim 2, wherein: The diameter of the first conductor (211) is 0.15 mm.

8. The electromagnetic interference resistant oscilloscope connection cable of claim 3, wherein: The diameter of the second conductor (221) is 0.08 mm.

9. The electromagnetic interference resistant oscilloscope connection cable of claim 1, wherein: The outer covering layer (10) is made of PVC material.

10. The electromagnetic interference resistant oscilloscope connection cable of claim 3, wherein: The first conductor (211) and the second conductor (221) are made of silver-plated twisted soft copper wire material.

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