CN214476510U - Direct-current high-voltage pulse cable - Google Patents
Direct-current high-voltage pulse cable Download PDFInfo
- Publication number
- CN214476510U CN214476510U CN202120527019.7U CN202120527019U CN214476510U CN 214476510 U CN214476510 U CN 214476510U CN 202120527019 U CN202120527019 U CN 202120527019U CN 214476510 U CN214476510 U CN 214476510U
- Authority
- CN
- China
- Prior art keywords
- voltage pulse
- current high
- pulse cable
- direct current
- high voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model provides a direct current high voltage pulse cable, including conductor 1, insulating layer 2, shielding layer 3 and restrictive coating 4, conductor 1, insulating layer 2, shielding layer 3 and restrictive coating 4 set gradually from inside to outside, and shielding layer 3 includes first wire, and each first wire is alternately woven, and the angle of weaving of first wire is more than or equal to 15 less than or equal to 35. By optimizing the braiding angle of the shielding layer 3, the shielding efficiency of the shielding layer 3 can be improved, and the shielding performance of the direct-current high-voltage pulse cable is improved.
Description
Technical Field
The utility model relates to a cable research field, especially a direct current high voltage pulse cable.
Background
The cable is used as an artery for connecting and transmitting electric energy and signals of equipment, and is indispensable in the composition of the equipment, some special equipment needs to transmit high-voltage electric energy with short time and high frequency due to special use and design requirements so as to meet the use and design requirements, the voltage resistance requirement of the cable reaches 45kV-75kV, the existing small-sized cables cannot meet the requirements of the special equipment in the aspects of voltage resistance, shielding performance and the like, and the high-voltage power cable is thicker due to the use characteristics and basically has the voltage of 35mm2The problems of unequal connection, large bending radius and the like exist, and the method is not suitable for the use requirement of special equipment.
Disclosure of Invention
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a direct current high voltage pulse cable, direct current high voltage pulse cable can promote shielding performance.
According to the utility model provides a direct current high voltage pulse cable, including conductor, insulating layer, shielding layer and restrictive coating, the conductor the insulating layer the shielding layer with the restrictive coating sets gradually from inside to outside, the shielding layer includes first wire, each first wire is alternately woven, the angle of weaving of first wire is more than or equal to 15 less than or equal to 35.
According to the utility model provides a direct current high voltage pulse cable has following technological effect at least: by optimizing the weaving angle of the shielding layer, the shielding efficiency of the shielding layer can be improved, and the shielding performance of the direct-current high-voltage pulse cable is improved.
According to some embodiments of the invention, the first metal wire is a tinned copper wire.
According to some embodiments of the invention, the material of the insulating layer is a modified linear low density polyethylene material.
According to some embodiments of the invention, the insulating layer is coated outside the conductor by a squeeze coating method.
According to some embodiments of the invention, the conductor comprises second wires, each of the second wires being twisted with respect to each other.
According to some embodiments of the invention, the second metal wire is a bare copper wire or a tinned copper wire.
According to some embodiments of the invention, the cross-sectional area of the conductor is greater than or equal to 0.5mm2Less than or equal to 6mm2。
According to some embodiments of the invention, the material of the sheath layer is an elastomeric material.
According to some embodiments of the invention, the material of the sheath layer is a polyurethane elastomer material.
According to some embodiments of the utility model, the restrictive coating passes through crowded package mode cladding outside the shielding layer.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a cross-sectional view of a dc high voltage pulse cable according to the present invention.
Reference numerals:
conductor 1, insulating layer 2, shielding layer 3, restrictive coating 4.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
According to the utility model provides a direct current high voltage pulse cable, including conductor 1, insulating layer 2, shielding layer 3 and restrictive coating 4, conductor 1, insulating layer 2, shielding layer 3 and restrictive coating 4 set gradually from inside to outside, and shielding layer 3 includes first wire, and each first wire is alternately woven, and the angle of weaving of first wire is more than or equal to 15 less than or equal to 35.
According to the utility model provides a direct current high voltage pulse cable optimizes through the angle of weaving to shielding layer 3, can improve shielding layer 3's shielding efficiency to improve direct current high voltage pulse cable's shielding property.
According to some embodiments of the utility model, the first metal silk adopts the tinned copper wire. The tinned copper wire can improve the oxidation resistance of the shielding layer 3 and prolong the service life of the direct-current high-voltage pulse cable.
According to some embodiments of the present invention, the material of the insulating layer 2 is a modified linear low density polyethylene material. The modified linear low-density polyethylene material is also called as a modified LLDPE material, has the capability of inhibiting space charge, can well adapt to the transmission requirement of direct current, and improves the insulating property of the direct current high-voltage pulse cable. It can be understood that the modified linear low-density polyethylene material can be a high-purity material, and due to high purity and few impurities, the insulating layer 2 has good insulating property and excellent insulating resistivity, so that the insulating property of the direct-current high-voltage pulse cable is further improved, and the requirement of high voltage resistance is better met.
In some embodiments, the insulating layer 2 is wrapped around the conductor 1 by extrusion.
According to some embodiments of the invention, the conductor 1 comprises second wires, which are twisted with each other. It can be understood that the second metal wires can be stranded by adopting a regular monofilament arrangement bundle stranding process, and meanwhile, the bundle stranding pitch is optimized, so that the appearance of the conductor 1 formed after bundle stranding is more round, and the control of the insulation concentricity is facilitated. In some embodiments, the second metal wire is a bare copper wire or a tinned copper wire. In some embodiments, the cross-sectional area of the conductor 1 is 0.5mm or more2Less than or equal to 6mm2. For example, the conductor 1 can be a category 5 or 6 soft conductor composed of a plurality of bare copper or tinned copper wires meeting the requirements of GB/T3956-.
According to some embodiments of the present invention, the material of the sheath layer 4 is an elastomer material. In some embodiments, the material of the sheath layer 4 is a polyurethane elastomer material. The polyurethane elastomer not only ensures that the direct current high-voltage pulse cable has good temperature resistance effect and can meet the temperature resistance requirement of minus 40 ℃ to 105 ℃, but also has the performances of oil resistance, acid and alkali resistance, friction resistance and the like, so that the direct current high-voltage pulse cable has strong environment adaptability and is suitable for various special scenes. Of course, other specific elastomeric materials may be used.
In some embodiments, the sheath layer 4 is wrapped around the shield layer 3 by extrusion.
The dc high voltage pulse cable according to the present invention is described in detail with a specific embodiment with reference to fig. 1. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.
The direct-current high-voltage pulse cable is composed of a conductor 1, an insulating layer 2, a shielding layer 3 and a sheath layer 4, wherein the conductor 1, the insulating layer 2, the shielding layer 3 and the sheath layer 4 are sequentially arranged from inside to outside.
The conductor 1 is a class 6 soft conductor formed by twisting second metal wires meeting the requirements of GB/T3956-2. The second metal wire is a tinned copper wire, and the second metal wire is stranded by adopting a regular monofilament arranging and bundling process.
The insulating layer 2 is coated outside the conductor 1 in an extrusion coating mode, and the insulating layer 2 is made of modified high-purity linear low-density polyethylene material.
The shielding layer 3 is composed of a plurality of first metal wires, the first metal wires are tinned copper wires, the first metal wires are wrapped outside the insulating layer 2 in a stranded cross weaving mode, and the weaving angle of the first metal wires is controlled to be 15-35 degrees.
The sheath layer 4 is made of polyurethane elastomer material, and the sheath layer 4 is coated outside the shielding layer 3 in an extrusion coating mode.
According to the utility model discloses direct current high voltage pulse cable through the design more than adopting, can realize such some functions at least:
by limiting the cross section of the conductor 1, the overall size of the direct-current high-voltage pulse cable can be reduced.
The modified high-purity linear low-density polyethylene material can well meet the transmission requirement of direct current and can improve the insulating property of the direct current high-voltage pulse cable. The direct-current high-voltage pulse cable is matched with special processes such as conductor preheating, a special extrusion die and one-section warm water cooling, and the excellent insulating property and the round appearance of the direct-current high-voltage pulse cable are ensured.
By optimizing the braiding angle of the shielding layer 3, the shielding efficiency of the shielding layer 3 can be improved, and the shielding performance of the direct-current high-voltage pulse cable is improved. The tinned copper wire can improve the oxidation resistance of the shielding layer 3 and prolong the service life of the direct-current high-voltage pulse cable.
The polyurethane elastomer material not only ensures that the direct current high-voltage pulse cable has good temperature resistance effect and can meet the temperature resistance requirement of minus 40 ℃ to 105 ℃, but also has the performances of oil resistance, acid and alkali resistance, friction resistance and the like, so that the direct current high-voltage pulse cable has strong environment adaptability and is suitable for various special scenes. Compared with the polyvinyl chloride or low-smoke halogen-free material of the traditional cable, the polyurethane elastomer material has stronger environmental adaptability, high temperature resistance and more excellent friction and oil resistant effects.
The embodiment adopts a four-layer structure, so that the overall size of the direct-current high-voltage pulse cable can be reduced, and the direct-current high-voltage pulse cable is flexible, small in size and convenient to wire and install; the high-pressure impact resistance is excellent; the shielding effect is excellent; the environmental resistance is strong. The voltage resistance of this embodiment can reach more than 75kV, and is fine but high pressure resistant effect is superior to traditional high tension cable than current direct current high tension cable, is applicable to the supporting installation of accurate type equipment.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A dc high voltage pulse cable, comprising:
a conductor (1);
an insulating layer (2);
the shielding layer (3) comprises first metal wires, the first metal wires are woven in a crossed mode, and the weaving angle of the first metal wires is larger than or equal to 15 degrees and smaller than or equal to 35 degrees;
sheath layer (4), conductor (1) insulating layer (2) shielding layer (3) with sheath layer (4) sets gradually from inside to outside.
2. The direct current high voltage pulse cable according to claim 1, wherein: the first metal wire is a tinned copper wire.
3. The direct current high voltage pulse cable according to claim 1, wherein: the insulating layer (2) is made of modified linear low-density polyethylene.
4. The direct current high voltage pulse cable according to claim 1 or 3, wherein: the insulating layer (2) is coated outside the conductor (1) in an extrusion coating mode.
5. The direct current high voltage pulse cable according to claim 1 or 3, wherein: the conductor (1) comprises second metal wires, which are twisted with each other.
6. The direct current high voltage pulse cable according to claim 5, wherein: the second metal wire is a bare copper wire or a tinned copper wire.
7. The direct current high voltage pulse cable according to claim 1, wherein: the cross-sectional area of the conductor (1) is more than or equal to 0.5mm2Less than or equal to 6mm2。
8. The direct current high voltage pulse cable according to claim 1 or 3, wherein: the sheath layer (4) is made of an elastomer material.
9. The direct current high voltage pulse cable according to claim 8, wherein: the material of the sheath layer (4) is polyurethane elastomer material.
10. The direct current high voltage pulse cable according to claim 1, wherein: the sheath layer (4) is coated outside the shielding layer (3) in an extrusion coating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527019.7U CN214476510U (en) | 2021-03-10 | 2021-03-10 | Direct-current high-voltage pulse cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527019.7U CN214476510U (en) | 2021-03-10 | 2021-03-10 | Direct-current high-voltage pulse cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214476510U true CN214476510U (en) | 2021-10-22 |
Family
ID=78155003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120527019.7U Active CN214476510U (en) | 2021-03-10 | 2021-03-10 | Direct-current high-voltage pulse cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214476510U (en) |
-
2021
- 2021-03-10 CN CN202120527019.7U patent/CN214476510U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202473308U (en) | Acid and alkali-resistant oil-resistant ultraviolet-resistant moisture-proof environment-friendly type flat drag cable | |
| CN213844790U (en) | Ultra-light anti-interference multi-core shielding control cable | |
| CN201838364U (en) | High-voltage multi-core shielded signal cable | |
| CN201465645U (en) | Signal control cable for high speed railway | |
| CN209929050U (en) | Coaxial cable with long service life | |
| CN214476510U (en) | Direct-current high-voltage pulse cable | |
| CN103606409A (en) | Flame-retardant high temperature resistance anti-bending soft type control cable | |
| CN214410824U (en) | Drag chain cable | |
| CN201489876U (en) | Cold-resistant oil-proof type flexible cable for control | |
| CN214956077U (en) | Anti-static and super-flexible special composite cable | |
| CN213025489U (en) | High-tensile small-section high-voltage special cable | |
| CN111403098A (en) | Coaxial cable structure of double-conductor | |
| CN104616755A (en) | Flexible silver-plated copper wire shielding motor lead cable | |
| CN104616790A (en) | Silver-plated aluminum alloy strip armored motor drainage cable | |
| CN105529092A (en) | Silver-plated aluminum-plastic nickel strip polyvinyl chloride insulated cable | |
| CN216849459U (en) | Coaxial cable for industrial camera | |
| CN215770579U (en) | High-flexibility concentric conductor cable | |
| CN216353428U (en) | Robot towline cable | |
| CN219958575U (en) | Industrial drag chain line | |
| CN216980139U (en) | Multi-core single cable of driving motor | |
| CN214253969U (en) | High-shielding efficient compact insulated cable | |
| CN217485110U (en) | Low-inductance coaxial cable | |
| CN217086244U (en) | Mobile communication network cable | |
| CN215527278U (en) | Small-bending-radius movable mechanical arm cable | |
| CN220856136U (en) | Rubber insulation high-voltage flexible cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |