CN210956272U - Anti-signal-interference frequency conversion cable - Google Patents
Anti-signal-interference frequency conversion cable Download PDFInfo
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- CN210956272U CN210956272U CN201922479692.3U CN201922479692U CN210956272U CN 210956272 U CN210956272 U CN 210956272U CN 201922479692 U CN201922479692 U CN 201922479692U CN 210956272 U CN210956272 U CN 210956272U
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Abstract
The utility model relates to the field of cables, more specifically say, relate to an anti signal interference frequency conversion cable, including a plurality of thread insulated wires, a plurality of zero line insulated wires and first around the band, the thread insulated wire comprises the insulating layer of thread and outer end parcel, the zero line insulated wire comprises the insulating layer of zero line and outer end parcel, a plurality of thread insulated wires and a plurality of zero line insulated wires all set up at first around the band and with first inner wall in close contact with around the band, a plurality of thread insulated wires, a plurality of zero line insulated wires and first clearance intussuseption around the band are filled with the filling layer, first outer end from inside to outside around the band parcel in proper order has the copper to mould compound area, the shielding layer, the second is around band and oversheath, can realize being convenient for reducing the cable loss, improve the interference killing feature of cable.
Description
Technical Field
The utility model relates to a cable field, more specifically say, relate to an anti signal interference variable frequency cable.
Background
The structure of the variable frequency cable comprises three main line insulated wires and three zero line insulated wires, an inner winding covering, a copper tape layer, an outer winding covering and an outer sheath layer are sequentially arranged outside the main line insulated wires and the zero line insulated wires to form a 3+3 wire core structure, so that the cable has stronger voltage impact resistance, can bear pulse voltage during high-speed frequent frequency conversion, and plays a good role in protecting variable frequency electrical appliances. The frequency conversion cable is mainly used for connecting a frequency conversion power supply and a frequency conversion motor, and is used for transmitting electric energy in a power transmission and distribution line with rated voltage of 1KV and below. It is especially suitable for paper making, metallurgy, metal processing, mine, railway, food processing and other industries.
Energy loss can be generated in the using process of the cable, in order to reduce the energy loss, the cable can be made into a round shape generally, because the round cable has the largest transverse bearing force, the resistance of wind can be reduced, the resistance is increased, the durability is enhanced, under the same materials, the material is saved more when the round cable is made into a cylinder than a cuboid or other shapes, most importantly, the electric field distribution of each point with the same distance with the center of a wire core is the same through the round cable, the electric field distribution around the cable is more uniform, however, in the existing life, the round cable is made into a round shape, and the symmetrical distribution of the insulated wires in the round cable is difficult.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide an anti signal interference variable frequency cable, it can realize being convenient for reduce the cable loss, improves the interference killing feature of cable.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
The utility model provides an anti signal interference frequency conversion cable, includes a plurality of thread insulated wires, a plurality of zero line insulated wire and first around the band, the thread insulated wire comprises thread and the insulating layer of outer end parcel, the zero line insulated wire comprises the insulating layer of zero line and outer end parcel, and is a plurality of thread insulated wire and a plurality of zero line insulated wire all set up in first around the band and with first inner wall in close contact with around the band, and is a plurality of the gap intussuseption of thread insulated wire, a plurality of zero line insulated wire and first around the band is filled with the filling layer, first outer end around the band has wrapped up copper-plastic composite strip, shielding layer, second around the band and oversheath from inside to outside in proper order, can realize being convenient for reduce the cable loss, improves the interference killing feature of cable.
Furthermore, 3 main line insulated wires and zero line insulated wires are arranged, a plurality of main line insulated wires and zero line insulated wires are distributed in a staggered mode, an inner partition piece used for enabling the main line insulated wires and the zero line insulated wires to be distributed more symmetrically is arranged between the main line insulated wires, a zero wire groove and a fire wire groove which correspond to the main line insulated wires and the zero line insulated wires respectively are formed in the outer end of the inner partition piece, the zero wire groove and the fire wire groove can be used for positioning the main line insulated wires and the zero line insulated wires, the main line insulated wires and the zero line insulated wires are distributed uniformly and symmetrically, and therefore the electric field distribution is more uniform.
Further, the maximum distance L1 between zero wire casing and the first tape inner wall equals with the diameter of zero line insulated wire, the maximum distance L2 between fire wire casing and the first tape inner wall equals with the diameter of main line insulated wire, L1 and L2 make a plurality of main line insulated wires and a plurality of zero line insulated wires all with same circle inscribe, make the fashioned cable more nearly circular, more help reducing the loss.
Furthermore, a hollow cavity is formed in the middle of the inner spacer, the hollow cavity can be vacuumized to reduce mutual interference among the main line insulated wires, a heat insulation liquid can be filled in the hollow cavity to reduce heat transfer among the main line insulated wires, and meanwhile the hollow cavity is arranged to enable the overall manufacturing cost of the inner spacer to be lower.
Further, first around the band for polypropylene ginning around the band, the second is around the band for the non-woven fabrics around the band, first around band and second around the band make the shielding layer difficult direct and thread insulated wire and zero line insulated wire contact cause the damage of thread insulated wire and zero line insulated wire crust.
Furthermore, the shielding layer is a copper wire mesh grid, so that external interference is effectively shielded, and the filling layer is a polypropylene filling rope, so that the main wire insulating wire and the zero line insulating wire are not easy to move in the first wrapping tape.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
one, this scheme can realize being convenient for reduce the cable loss, improves the interference killing feature of cable.
Two, thread insulated wire and zero line insulated wire all are provided with 3, and a plurality of thread insulated wire and zero line insulated wire crisscross distribution, be provided with between a plurality of thread insulated wire and be used for making thread insulated wire and zero line insulated wire distribute the interior spacer of more symmetry, the outer end of interior spacer is provided with zero line groove and live wire groove that correspond respectively with thread insulated wire and zero line insulated wire, zero line groove and live wire groove can be fixed a position thread insulated wire and zero line insulated wire, so that thread insulated wire and zero line insulated wire distribute evenly the symmetry, thereby make electric field distribution more even.
And the maximum distance L1 between the zero line groove and the inner wall of the first wrapping tape is equal to the diameter of the zero line insulated wire, the maximum distance L2 between the fire line groove and the inner wall of the first wrapping tape is equal to the diameter of the main line insulated wire, and the L1 and the L2 ensure that the plurality of main line insulated wires and the plurality of zero line insulated wires are internally tangent to the same circle, so that the formed cable is more approximate to a circle, and the loss is more favorably reduced.
Fourthly, a hollow cavity is formed in the middle of the inner spacing part, the hollow cavity can be vacuumized to reduce mutual interference among the main line insulated wires, heat insulation liquid can be filled in the hollow cavity to reduce heat transfer among the main line insulated wires, and meanwhile the hollow cavity is arranged to enable the overall manufacturing cost of the inner spacing part to be lower.
Fifthly, the first wrapping tape is a polypropylene embossing wrapping tape, the second wrapping tape is a non-woven fabric wrapping tape, and the first wrapping tape and the second wrapping tape enable the shielding layer to be difficult to directly contact with the main insulated wire and the zero line insulated wire to cause damage to the outer skins of the main insulated wire and the zero line insulated wire.
Sixthly, the shielding layer is a copper wire woven mesh, so that external interference is effectively shielded, and the filling layer is a polypropylene filling rope, so that the main wire insulating wire and the zero line insulating wire are not easy to move in the first wrapping tape.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic view of a part of the structure of the present invention.
The reference numbers in the figures illustrate:
the cable comprises a main wire insulated wire 1, a zero wire insulated wire 2, an insulating layer 3, an inner spacer 4, a zero wire groove 41, a hot wire groove 42, a hollow cavity 43, a first wrapping tape 5, a copper-plastic composite tape 6, a shielding layer 7, a second wrapping tape 8, an outer sheath 9 and a filling layer 10.
Detailed Description
The technical scheme in the embodiment of the utility model is clearly and completely described; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-3, an anti-signal interference frequency conversion cable includes a plurality of main insulated wires 1, a plurality of zero insulated wires 2 and a first wrapping tape 5, the main insulated wires 1 are composed of main insulated wires and insulating layers 3 wrapped by outer ends of the main insulated wires, the zero insulated wires 2 are composed of zero wires and insulating layers 3 wrapped by outer ends of the zero wires, the main insulated wires 1 and the zero insulated wires 2 are all disposed in the first wrapping tape 5 and are in close contact with an inner wall of the first wrapping tape 5, the main insulated wires 1, the zero insulated wires 2 and a gap of the first wrapping tape 5 are filled with a filling layer 10, the first wrapping tape 5 is sequentially wrapped with a copper-plastic composite tape 6, a shielding layer 7, a second wrapping tape 8 and an outer sheath 9 from inside to outside, the first wrapping tape 5 is a polypropylene embossing tape, the second tape 8 is a non-woven fabric tape, and the first wrapping tape 5 and the second wrapping tape 8 make the shielding layer 7 not easily contact with the main insulated wires 1 and the zero insulated wires 2 directly The outer skins of the main line insulated wire 1 and the zero line insulated wire 2 are damaged, the shielding layer 7 is a copper wire mesh grid, external interference is effectively shielded, and the filling layer 10 is a polypropylene filling rope, so that the main line insulated wire 1 and the zero line insulated wire 2 are not easy to move in the first wrapping tape 5.
Mainline insulated wire 1 and zero line insulated wire 2 all are provided with 3, and a plurality of mainline insulated wires 1 and zero line insulated wire 2 crisscross distribution, be provided with between a plurality of mainline insulated wire 1 and be used for making mainline insulated wire 1 and zero line insulated wire 2 distribute more symmetrical interior spacer 4, the outer end of interior spacer 4 is provided with zero line groove 41 and live wire groove 42 that correspond respectively with mainline insulated wire 1 and zero line insulated wire 2, zero line groove 41 and live wire groove 42 can be fixed a position mainline insulated wire 1 and zero line insulated wire 2, so that mainline insulated wire 1 and zero line insulated wire 2 distribute evenly symmetrically, thereby make electric field distribution more even.
Referring to fig. 3, a maximum distance L1 between the zero line slot 41 and the inner wall of the first wrapping tape 5 is equal to the diameter of the zero line insulated wire 2, a maximum distance L2 between the fire line slot 42 and the inner wall of the first wrapping tape 5 is equal to the diameter of the main line insulated wire 1, and L1 and L2 enable the main line insulated wires 1 and the zero line insulated wires 2 to be inscribed in the same circle, so that the formed cable is more circular, which is more helpful to reduce loss, a hollow cavity 43 is drilled in the middle of the inner spacer 4, the hollow cavity 43 can be vacuumized to reduce mutual interference between the main line insulated wires 1, and a heat insulating liquid can be filled in the hollow cavity 43 to reduce heat transfer between the main line insulated wires 1, and the hollow cavity 43 is disposed to reduce the overall manufacturing cost of the inner spacer 4.
With 2 interval distributions of main insulated wire 1 and zero line insulated wire, and utilize interior spacer 4 to main insulated wire 1 and zero line insulated wire 2 location, it is more symmetrical to make a plurality of main insulated wire 1 and a plurality of zero line insulated wire 2 distribute, thereby be favorable to the evenly distributed of each point electric field in the cable, utilize interior spacer 4 to make main insulated wire 1 and zero line insulated wire 2 inscribe in same circle simultaneously, be favorable to the circular shaping of cable, in addition, adopt shielding layer 7 to make main insulated wire 1 and zero line insulated wire 2 be difficult for receiving external disturbance, can realize being convenient for reduce the cable loss, improve the interference killing feature of cable.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (6)
1. The utility model provides an anti signal interference variable frequency cable, includes a plurality of mainlines insulated wire (1), a plurality of zero line insulated wire (2) and first around band (5), its characterized in that: the main wire insulated wire (1) is composed of a main wire and an insulating layer (3) wrapped by the outer end of the main wire, the main wire insulated wire (2) is composed of a main wire and an insulating layer (3) wrapped by the outer end of the main wire, the main wire insulated wire (1) and the zero wire insulated wires (2) are arranged in a first wrapping tape (5) and are in close contact with the inner wall of the first wrapping tape (5), the main wire insulated wire (1), the zero wire insulated wires (2) and the first wrapping tape (5) are filled with a filling layer (10), and a copper-plastic composite tape (6), a shielding layer (7), a second wrapping tape (8) and an outer sheath (9) are sequentially wrapped at the outer end of the first wrapping tape (5) from inside to outside.
2. The signal interference resistant variable frequency cable according to claim 1, wherein: the utility model discloses a line insulation wire, including main line insulation wire (1) and zero line insulation wire (2), main line insulation wire (1) and zero line insulation wire (2) all are provided with 3, and a plurality of main line insulation wire (1) and zero line insulation wire (2) crisscross distribution, a plurality of be provided with between main line insulation wire (1) and be used for making main line insulation wire (1) and zero line insulation wire (2) distribute more symmetrical interior spacer (4), the outer end of interior spacer (4) is provided with zero line groove (41) and live wire groove (42) that correspond respectively with main line insulation wire (1) and zero line insulation wire (2).
3. The signal interference resistant variable frequency cable according to claim 2, wherein: zero wire groove (41) and the first diameter of wrapping maximum distance L1 between band (5) inner wall and zero line insulated wire (2) equals, fire wire groove (42) and the first diameter of wrapping maximum distance L2 between band (5) inner wall and mainline insulated wire (1) equals, L1 and L2 make a plurality of mainline insulated wires (1) and a plurality of zero line insulated wire (2) all with same circle inscribe.
4. The signal interference resistant variable frequency cable according to claim 2, wherein: the middle part of the inner separator (4) is provided with a hollow cavity (43).
5. The signal interference resistant variable frequency cable according to claim 1, wherein: the first lapping tape (5) is a polypropylene embossing lapping tape, and the second lapping tape (8) is a non-woven fabric lapping tape.
6. The signal interference resistant variable frequency cable according to claim 1, wherein: the shielding layer (7) is a copper wire woven mesh, and the filling layer (10) is a polypropylene filling rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922479692.3U CN210956272U (en) | 2019-12-31 | 2019-12-31 | Anti-signal-interference frequency conversion cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922479692.3U CN210956272U (en) | 2019-12-31 | 2019-12-31 | Anti-signal-interference frequency conversion cable |
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| Publication Number | Publication Date |
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| CN210956272U true CN210956272U (en) | 2020-07-07 |
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| CN201922479692.3U Active CN210956272U (en) | 2019-12-31 | 2019-12-31 | Anti-signal-interference frequency conversion cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116913602A (en) * | 2023-09-08 | 2023-10-20 | 天津瑞源电缆有限公司 | Variable frequency cable |
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2019
- 2019-12-31 CN CN201922479692.3U patent/CN210956272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116913602A (en) * | 2023-09-08 | 2023-10-20 | 天津瑞源电缆有限公司 | Variable frequency cable |
| CN116913602B (en) * | 2023-09-08 | 2023-11-28 | 天津瑞源电缆有限公司 | Variable frequency cable |
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