CN204695816U - High-performance ultra-soft motor winding jump lead - Google Patents
High-performance ultra-soft motor winding jump lead Download PDFInfo
- Publication number
- CN204695816U CN204695816U CN201520437240.8U CN201520437240U CN204695816U CN 204695816 U CN204695816 U CN 204695816U CN 201520437240 U CN201520437240 U CN 201520437240U CN 204695816 U CN204695816 U CN 204695816U
- Authority
- CN
- China
- Prior art keywords
- cable core
- wire harness
- motor winding
- jump lead
- insulating barrier
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of high-performance ultra-soft motor winding jump lead, comprise cable core, and be coated on the insulating barrier on cable core, described cable core forms by wire harness is stranded, and this wire harness is twisted into by some metal monofilament; Between cable core and insulating barrier, be provided with inner semiconductor layer, be outwards also coated with out semiconductor layer, outer jacket and adherent layer successively from inner on the insulating layer.The bundle strand direction of described wire harness is identical with the multiple strand direction of cable core; The stranded lay ratio of wire harness is greater than the multiple strand lay ratio of cable core.The stranded lay ratio of described wire harness is 20-25; The multiple strand lay ratio of described cable core is 18-20.This jump lead not only has good electrical property and flexibility, and effectively avoids the adhesion phenomenon in jump lead dipping process.
Description
Technical field
The utility model relates to a kind of electric machine winding lead wire cable, particularly relates to a kind ofly motor winding to be drawn motor case and the energy be connected with external circuitry is soft curvedly lays and have the winding jump lead of high electrical performance.
Background technology
Motor winding jump lead is for good and all connected with motor stator winding and draws a kind of special cable that motor case is connected with binding post on motor or external circuitry.It not only requires high temperature high voltage resistant, and wants to bear and less lay bending radius, has good flexibility, heat-resistant pressure-resistant and solvent resistance.
Existing motor winding jump lead mainly comprises cable core, and is coated on the insulating barrier on cable core, and insulating material adopts polyolefine material, rubber-plastics material or insulating varnish usually.In such a configuration, because cable core forms by many metal monofilament are stranded, be easy between cable core and insulating barrier form air gap; In addition jump lead lay with running in will inevitably flexural deformation, and heat effect etc. of catching a cold, the local gaps between cable core and insulating barrier can be strengthened again, the out-of-flatness on this cable core surface and the existence in cable core and insulating barrier gap, make can not contact very well between cable core with insulation, electric field can be caused to concentrate, cause, between cable core metallic conductor and insulating barrier, partial discharge occurs.Between surface of insulating layer and sheath contact position, also there will be gap equally, also become and cause partial discharge factor.Therefore in existing structure, the gap of insulating barrier surfaces externally and internally all can cause electric field to worsen; Especially, for high pressure, also bubble-discharge can be caused, even insulation breakdown.
Motor winding jump lead inevitably needs when laying installation to bend, and this just requires that jump lead has good flexibility, cable softness except and the direct correlation of cable core monofilament, also arrange with the monofilament of cable core monofilament, stranded mode be associated.Motor winding is after completing; also need to carry out preliminary drying, dipping lacquer and the treatment process such as to bake; and this treatment process often causes multiply jump lead inter-adhesive; when being separated jump lead; insulating barrier usually can be torn or tear; cause electric leakage, the safe operation of direct threat equipment and personal safety.
Utility model content
For the above-mentioned deficiency existing for prior art, technical problem to be solved in the utility model is to provide a kind of high-performance ultra-soft motor winding jump lead, not only flexibility is good for it, gapless between cable core and insulating barrier, and can avoid the adhesion phenomenon in jump lead dipping lacquer process.
In order to solve the problems of the technologies described above, high-performance ultra-soft motor winding jump lead of the present utility model, comprise cable core and be coated on the insulating barrier on cable core, described cable core forms by wire harness is stranded, and this wire harness is twisted into by some metal monofilament; Between cable core and insulating barrier, be provided with inner semiconductor layer, be outwards also coated with out semiconductor layer, outer jacket and adherent layer successively from inner on the insulating layer.
In said structure, because some metal monofilament are twisted into wire harness, cable core is twisted again by wire harness again and forms, so not only be beneficial to and make processing, especially the production of large gauge jump lead is suitable for, and be conducive to, at the stranding process evenly stressed size of every root metal monofilament and degree of crook, more realizing the attenuate of cable core monofilament, thus improving whole jump lead flexibility.Inner semiconductor layer and outer conductive shielding layer is respectively arranged with again outside in insulating barrier, the inner semiconductor layer of cable effectively can make the gap between cable core and insulating barrier up, and the gap of cable bend distortion and cold and hot effect generation, this semiconductive shielding layer make shielding cable core equipotential and with insulating barrier good contact, thus avoid, between cable core conductor and insulating barrier, partial discharge occurs.The out semiconductor layer be in equally between insulating barrier and outer jacket also effectively compensate for the gap between surface of insulating layer and sheath contact-making surface, this semiconductive shielding layer both with insulating barrier good contact, also fully contact with oversheath, with avoiding, between insulating barrier and sheath, partial discharge occurs.Also owing to being coated with adherent layer on the outer jacket of jump lead, when jump lead carries out preliminary drying, dipping lacquer and the process such as to cure, what can not be formed between each jump lead is inter-adhesive, and be easy to separately, tearing and tearing phenomenon of jump lead is there will not be when jump lead is separated, stop tearing of jump lead and leak electricity, using reliably safer.
Further execution mode of the present utility model, the bundle strand direction of described wire harness is identical with the multiple strand direction of cable core; The stranded lay ratio of wire harness is greater than the multiple strand lay ratio of cable core.Bundle twists and twists the identical structural stability that effectively can improve cable core in direction again, all can keep the consistency of monofilament tension force and degree of crook when making cable core in multiple strand and lay bending.Bundle strand lay ratio is greater than multiple strand pitch ratio, makes again stranded stress more reasonable.
Further execution mode of the present utility model, the stranded lay ratio of described wire harness is 20-25; The multiple strand lay ratio of described cable core is 18-20.Rational lay ratio makes cable have the good mechanical performance such as enough stretch-prooves, resist bending, has both prevented loose stock, and has avoided again adjacent monofilament to embed, flexible to guarantee the distortion of cable.
Preferably, the metal monofilament cross-sectional outer diameter d=0.2mm-0.4mm of described wire harness.
Preferably, described inner semiconductor layer and out semiconductor layer are that semiconductive material extrudes layer, and this thickness extruding layer is 0.3mm-0.6mm.
Preferably, described insulating barrier is that polytetrafluoroethylene extrudes layer, and the thickness of insulating barrier is 2.0mm-5.0mm.
Preferably, described outer jacket is glass fiber or polyster fibre braid, and the thickness of outer jacket is 0.5mm-1.0mm.
Preferably, described adherent layer is the sprayed coating that prevents adhesion, and the thickness of this adherent layer is 10 μm-30 μm.
Preferably, described cable core includes seven strand bundles, and stranded on the wire harness being positioned at heart portion have six strand bundles.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model high-performance ultra-soft motor winding jump lead is described further.
Fig. 1 is the cross section structure schematic diagram of a kind of embodiment of the utility model high-performance ultra-soft motor winding jump lead.
In figure, 1-cable core, 2-wire harness, 3-inner semiconductor layer, 4-insulating barrier, 5-partly lead screen, 6-outer jacket, 7-adherent layer outward.
Embodiment
High-performance ultra-soft motor winding jump lead as shown in Figure 1, cable core 1 forms by 7 strand bundles 2 are stranded, and wire harness 2 forms by some copper metal monofilament are stranded.The external diameter of copper monofilament is 0.25mm(millimeter), in order to the flexibility making jump lead keep good, the bundle strand direction of wire harness 2 and the multiple strand direction of cable core 1 are left-hand, namely both direction of lays are identical, metal monofilament external diameter should preferably at 0.20mm-0.30mm, and the stranded lay ratio of wire harness 2 is greater than the multiple stranded lay ratio of cable core 1.The stranded external diameter of wire harness is preferably 20-25 with the ratio of its twisting pitch, and the ratio that multiple strand external diameter and its of cable core twist pitch again is preferably chosen as 18-20, to ensure that cable has good flexibility and structural stability.
Be coated with insulating barrier 4 at cable core 1, between cable core 1 and insulating barrier 4, be provided with inner semiconductor layer 3, insulating barrier 4 is outwards coated with out semiconductor layer 5, outer jacket 6 and adherent layer 7 successively from inner.Inner semiconductor layer 3 and out semiconductor layer 5 all extrude with cable semi-conductive shield sizing material and form, this semiconductive shielding layer can also be formed by method coatings such as coating, sprayings with semi-conductive screen sizing material, and the thickness prioritizing selection of semiconductive shielding layer is 0.30mm-0.6mm.The teflon insulation layer of insulating barrier 4 for extruding, the specifications and models according to jump lead are preferably 2.0mm-5.0mm.Teflon insulation layer has excellent insulation property, chemical stability and thermal endurance.Outer jacket 6 is polyster fibre braid, or is glass fiber braid, and the thickness of this braid should control between 0.5mm-1.0mm, to keep cable tensile strength and enough flexibilities.Outer jacket 6 is coated with the adherent layer 7 that silicon rubber is formed, the thickness of adhesive coating layer 7 is 20 μm (microns), and the thickness of anti-stick coating 7 should control between 10 μm-30 μm; Adherent layer 7 can also be applied with silicon Organic fluoride rubber, fluoroplastics by processes such as applying, spray, extrude and be coated on the outer jacket of cable.
Claims (9)
1. a high-performance ultra-soft motor winding jump lead, comprise cable core (1), and the insulating barrier (4) be coated on cable core (1), it is characterized in that: described cable core (1) forms by wire harness (2) is stranded, and this wire harness (2) is twisted into by some metal monofilament; Between cable core (1) and insulating barrier (4), be provided with inner semiconductor layer (3), insulating barrier (4) is outwards also coated with out semiconductor layer (5), outer jacket (6) and adherent layer (7) successively from inner.
2. high-performance ultra-soft motor winding jump lead according to claim 1, is characterized in that: the bundle strand direction of described wire harness (2) is identical with the multiple strand direction of cable core (1); The stranded lay ratio of wire harness (2) is greater than the multiple strand lay ratio of cable core (1).
3. high-performance ultra-soft motor winding jump lead according to claim 1 and 2, is characterized in that: the stranded lay ratio of described wire harness (2) is 20-25; The multiple strand lay ratio of described cable core (1) is 18-20.
4. high-performance ultra-soft motor winding jump lead according to claim 1 and 2, is characterized in that: the metal monofilament cross-sectional outer diameter d=0.2mm-0.4mm of described wire harness (2).
5. high-performance ultra-soft motor winding jump lead according to claim 1, it is characterized in that: described inner semiconductor layer (3) and out semiconductor layer (5) extrude layer for semiconductive material, and this thickness extruding layer is 0.3mm-0.6mm.
6. high-performance ultra-soft motor winding jump lead according to claim 1, is characterized in that: described insulating barrier (4) extrudes layer for polytetrafluoroethylene, and the thickness of insulating barrier (4) is 2.0mm-5.0mm.
7. high-performance ultra-soft motor winding jump lead according to claim 1, is characterized in that: described outer jacket (6) is glass fiber or polyster fibre braid, and the thickness of outer jacket (6) is 0.5mm-1.0mm.
8. high-performance ultra-soft motor winding jump lead according to claim 1, is characterized in that: described adherent layer (7) is the sprayed coating that prevents adhesion, and the thickness of this adherent layer (7) is 10 μm-30 μm.
9. high-performance ultra-soft motor winding jump lead according to claim 1 and 2, is characterized in that: described cable core (1) includes seven strand bundles (2), and stranded on the wire harness (2) being positioned at heart portion have six strand bundles (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437240.8U CN204695816U (en) | 2015-06-24 | 2015-06-24 | High-performance ultra-soft motor winding jump lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437240.8U CN204695816U (en) | 2015-06-24 | 2015-06-24 | High-performance ultra-soft motor winding jump lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204695816U true CN204695816U (en) | 2015-10-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520437240.8U Expired - Fee Related CN204695816U (en) | 2015-06-24 | 2015-06-24 | High-performance ultra-soft motor winding jump lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204695816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111279439A (en) * | 2017-10-26 | 2020-06-12 | 古河电气工业株式会社 | Carbon nanotube composite wire, carbon nanotube-coated electric wire, and wire harness |
-
2015
- 2015-06-24 CN CN201520437240.8U patent/CN204695816U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111279439A (en) * | 2017-10-26 | 2020-06-12 | 古河电气工业株式会社 | Carbon nanotube composite wire, carbon nanotube-coated electric wire, and wire harness |
| CN111279439B (en) * | 2017-10-26 | 2022-06-17 | 古河电气工业株式会社 | Carbon nanotube composite wire, carbon nanotube-coated electric wire, and wire harness |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20190624 |