CN217468022U - Power and signal composite flexible cable for precision equipment - Google Patents
Power and signal composite flexible cable for precision equipment Download PDFInfo
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- CN217468022U CN217468022U CN202220962942.8U CN202220962942U CN217468022U CN 217468022 U CN217468022 U CN 217468022U CN 202220962942 U CN202220962942 U CN 202220962942U CN 217468022 U CN217468022 U CN 217468022U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a power and signal composite flexible cable is used to accurate equipment, which comprises a cable body, the cable body by interior to outer compound cable core, compound cable core protective layer, compound cable core woven shield layer and the nonmetal sheath of compound cable core in proper order, compound cable core include signal cable, packing and at least one power cable, signal cable and power cable equidirectional transposition together, power cable include power cable conductor and the cladding power cable insulating layer outside the power cable conductor, signal cable by interior to outer signal cable conductor, signal cable insulating layer, signal cable protective layer, signal cable woven shield layer and the nonmetal sheath of signal cable in proper order. The utility model solves the problem that the existing low-voltage power cable and the signal cable interfere with the signal when used together; meanwhile, the power cable and the signal cable are combined together, so that the laying is convenient, and the construction cost is reduced.
Description
Technical Field
The utility model relates to a cable technical field especially relates to a power and signal composite flexible cable are used to accurate equipment.
Background
The conductors of the low-voltage power cables in the traditional cable industry all adopt a second conductor specified in GB/T3956-. When an enterprise normally designs a conductor, in order to reduce the production cost, the number of single wires in the conductor is basically considered according to the minimum number, and the bending radius of the cable meets the standard regulation of GB/T12706.1-2020. The low voltage cable specified in GB/T12706.1-2020 is also not mandatory to have a braided shield.
When the traditional power cable and the signal cable are laid together, the power cable is in alternating current transmission, and an electromagnetic field produced by an alternating electric field in the power transmission process interferes with the signal transmission of the signal cable, so that the attenuation of the signal is increased. The power cable and the signal cable need to be installed separately, so that the space and the time are occupied; the cable core of the power cable is not shielded by metal, so that the transmission signal performance of an adjacent signal cable can be interfered due to the variability of an electric field when electric energy is transmitted; the conventional signal cable is not provided with a metal shielding layer, and when signals are transmitted, the signals are interfered by an electric field of an adjacent power cable, so that the signals are deteriorated.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a power and signal composite flexible cable for precision equipment, which solves the problem of signal interference when the existing low-voltage power cable and the signal cable are used together; meanwhile, the power cable and the signal cable are combined together, so that the laying is convenient, and the construction cost is reduced.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a power and signal composite flexible cable is used to precision equipment, includes the cable body, the cable body by interior to outer be compound cable core, compound cable core protective layer, compound cable core woven shielding layer and compound cable core non-metal sheath in proper order, compound cable core include signal cable, packing and at least one power cable, signal cable and power cable together with the direction transposition, power cable include power cable conductor and the cladding power cable insulating layer outside the power cable conductor, signal cable by interior to outer be signal cable conductor, signal cable insulating layer, signal cable protective layer, signal cable woven shielding layer and signal cable non-metal sheath in proper order.
As a supplement to the technical scheme of the utility model, the composite cable core in total three power cable.
As right technical scheme a supplement, power cable conductor and signal cable conductor all adopt soft conductor.
As right technical scheme a supplement, power cable insulating layer and signal cable insulating layer all adopt environment-friendly PVC insulating.
As a supplement to the technical scheme of the utility model, the signal cable protective layer adopt the crowded package of electrical insulation polyester area to form.
As right technical scheme a supplement, signal cable weave the shielding layer and weave the metallic shield layer for the tinned copper wire.
As a supplement to the technical scheme of the utility model, the composite cable core protective layer adopt the electric insulation polyester tape to extrude and wrap and form.
As right technical scheme a supplement, compound cable core weave the shielding layer and weave the metal shielding layer for the tinned copper wire.
As right technical scheme a supplement, non-metallic sheath of signal cable and the non-metallic sheath of composite cable core be environment-friendly PVC sheath.
Has the advantages that: the utility model relates to a power and signal composite flexible cable is used to precision equipment has following several advantages:
1. the power cable conductor and the signal cable conductor both adopt flexible conductor structures, so that the flexibility of the cable is improved, the cable has excellent bending performance and good lateral pressure resistance, the construction is convenient, and the occupied space is small;
2. the conductor is externally extruded with environment-friendly PVC insulation, so that the harm to a human body and the pollution to the environment are reduced;
3. an electrical insulation polyester tape is wound outside the signal cable conductor, so that the insulation wire core is protected from being pricked by an external sharp object;
4. the tinned copper wire braided shielding layer is arranged outside the signal cable conductor, so that signal transmission is more stable, and signal attenuation is reduced;
5. the signal cable and the power cable are twisted together, the outer diameter is small, the weight is light, and the times of installation and laying and the installation time are reduced;
6. the composite cable core is wrapped with the electric insulation polyester tape, so that the insulation wire core is protected from being pricked by an external sharp object;
7. the composite cable core is externally provided with the tinned copper wire braided shielding layer, so that an electromagnetic field generated by an alternating electric field in the power cable power transmission process is shielded, and the transmission and attenuation of interference signals are avoided;
8. the shielding layer is externally extruded with an environment-friendly PVC protective layer, which has mechanical protection effect on the cable and reduces the harm to human body and the pollution to environment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figure is as follows: 1. the cable comprises a power cable conductor, 2, a power cable insulating layer, 3, filling, 4, a signal cable conductor, 5, a signal cable insulating layer, 6, a signal cable protective layer, 7, a signal cable braided shielding layer, 8, a signal cable non-metal protective layer, 9, a composite cable core protective layer, 10, a composite cable core braided shielding layer and 11, a composite cable core non-metal protective layer.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications can be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model discloses an embodiment relates to a power and signal composite flexible cable is used to precision equipment, as shown in fig. 1, including the cable body, the cable body by interior to outer be compound cable core, compound cable core protective layer 9, compound cable core woven shield 10 and compound cable core non-metal sheath 11 in proper order, compound cable core include signal cable, fill 3 and three power cable, signal cable and power cable equidirectional transposition together, power cable include power cable conductor 1 and cladding power cable insulating layer 2 outside power cable conductor 1, signal cable by interior to outer be signal cable conductor 4, signal cable insulating layer 5, signal cable protective layer 6, signal cable woven shield 7 and signal cable non-metal sheath 8 in proper order.
The power cable conductor 1 and the signal cable conductor 4 are both flexible conductors, so that the flexibility of the cable is improved, the cable has excellent bending performance and good lateral pressure resistance, and is convenient to construct and small in occupied space.
The power cable insulating layer 2 and the signal cable insulating layer 5 are both insulated by environment-friendly PVC, so that the harm to a human body and the pollution to the environment are reduced.
The signal cable protective layer 6 and the composite cable core protective layer 9 are both formed by extruding and wrapping electrically-insulated polyester tapes, so that the insulated wire cores are protected from being pricked by external sharp objects.
The signal cable braided shield layer 7 and the composite cable core braided shield layer 10 are both tinned copper wire braided metal shield layers.
The signal cable non-metal protective layer 8 and the composite cable core non-metal protective layer 11 are both environment-friendly PVC protective layers, have a mechanical protection effect on the cable, and simultaneously reduce the harm to human bodies and the pollution to the environment.
The utility model twists the signal cable and the power cable together, has small outer diameter and light weight, and reduces the times of installation and laying and the installation time; a tinned copper wire braided shielding layer is arranged outside the signal cable conductor 4, so that signal transmission is more stable, and signal attenuation is reduced; the composite cable core is externally provided with the tinned copper wire braided shielding layer, so that an electromagnetic field generated by an alternating electric field in the power cable power transmission process is shielded, and the transmission and attenuation of interference signals are avoided. The cable of the utility model meets the requirements of the standards of GB/T12706.1, JB/T8734.5, GB/T19666 and the like.
The utility model discloses an experimental result and judgement:
1. mechanical properties before insulation aging: tensile strength of not less than 12.5N/mm 2 Elongation at break not less than 150%;
2. mechanical properties after insulation aging: tensile strength of not less than 12.5N/mm 2 Elongation at break not less than 150%; the change rate of tensile strength and elongation at break is not more than +/-25%;
3. mechanical properties of the sheath before aging: tensile strength of not less than 12.5N/mm 2 Elongation at break not less than 150%;
4. mechanical properties of the sheath after aging: tensile strength of not less than 12.5N/mm 2 Elongation at break not less than 150%; the change rate of the tensile strength and the elongation at break is not more than +/-25 percent;
5. the signal wire pair twisting pitch is not more than 60 mm;
6. the weaving density of the shielding layer is not less than 80 percent;
7. the thickness of the sheath: the average thickness is not less than 1.7mm, and the thinnest point thickness is not less than 1.45 mm;
8. the flame retardant property meets the requirements of GB/T19666-.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
The above detailed description is provided for a power and signal composite flexible cable for precision equipment, and the principles and embodiments of the present application are explained in detail by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (9)
1. The utility model provides a power and signal composite flexible cable is used to precision equipment, includes the cable body, its characterized in that: the cable body by inside to outside in proper order for compound cable core, compound cable core protective layer (9), compound cable core to weave shielding layer (10) and compound cable core non-metal sheath (11), compound cable core include signal cable, fill (3) and at least one power cable, signal cable and power cable together with the direction transposition, power cable include power cable conductor (1) and cladding power cable insulating layer (2) outside power cable conductor (1), signal cable by inside to outside in proper order for signal cable conductor (4), signal cable insulating layer (5), signal cable protective layer (6), signal cable to weave shielding layer (7) and signal cable non-metal sheath (8).
2. The power and signal composite flexible cable for precision equipment as claimed in claim 1, wherein: the composite cable core is internally provided with three power cables in total.
3. The power and signal composite flexible cable for precision equipment as claimed in claim 1, wherein: the power cable conductor (1) and the signal cable conductor (4) both adopt soft conductors.
4. The power and signal composite flexible cable for precision equipment as claimed in claim 1, wherein: the power cable insulating layer (2) and the signal cable insulating layer (5) are both insulated by environment-friendly PVC.
5. The power and signal composite flexible cable for precision equipment as claimed in claim 1, wherein: the signal cable protective layer (6) is formed by extruding and wrapping an electric insulation polyester tape.
6. The power and signal composite flexible cable for precision equipment as claimed in claim 1, wherein: the signal cable braided shielding layer (7) is a tinned copper wire braided metal shielding layer.
7. The power and signal composite flexible cable for precision equipment as claimed in claim 1, wherein: the composite cable core protective layer (9) is formed by extruding and wrapping an electric insulation polyester tape.
8. The power and signal composite flexible cable for precision equipment as claimed in claim 1, wherein: the composite cable core braided shielding layer (10) is a tinned copper wire braided metal shielding layer.
9. The power and signal composite flexible cable for precision equipment as claimed in claim 1, wherein: the signal cable non-metal protective layer (8) and the composite cable core non-metal protective layer (11) are both environment-friendly PVC protective layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220962942.8U CN217468022U (en) | 2022-04-25 | 2022-04-25 | Power and signal composite flexible cable for precision equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220962942.8U CN217468022U (en) | 2022-04-25 | 2022-04-25 | Power and signal composite flexible cable for precision equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217468022U true CN217468022U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220962942.8U Active CN217468022U (en) | 2022-04-25 | 2022-04-25 | Power and signal composite flexible cable for precision equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217468022U (en) |
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2022
- 2022-04-25 CN CN202220962942.8U patent/CN217468022U/en active Active
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