CN204667949U - A kind of bend resistance digital signal cable - Google Patents
A kind of bend resistance digital signal cable Download PDFInfo
- Publication number
- CN204667949U CN204667949U CN201520304191.0U CN201520304191U CN204667949U CN 204667949 U CN204667949 U CN 204667949U CN 201520304191 U CN201520304191 U CN 201520304191U CN 204667949 U CN204667949 U CN 204667949U
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- CN
- China
- Prior art keywords
- teflon insulation
- brace
- axially extending
- extending bore
- screen
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Abstract
The utility model discloses a kind of bend resistance digital signal cable, comprising: cable core, screen and composite jacket layer; Cable core comprises many holding wires and elastic insulator, and being provided with cross section in the middle part of elastic insulator is the first circular axially extending bore, and axially extending bore inwall is provided with metal coating; Many holding wires are parallel to be longitudinally circumferentially uniformly distributed in insulator, is also provided with multiple second axially extending bore in elastic insulator, and holding wire comprises and is positioned at four signal bodies at middle part and the insulating barrier of coated four signal external body; Screen is metal foil layer, and it is coated on cable core outside, and screen inside is provided with drainage thread; Composite jacket layer is extruded outside screen.The utility model by insulation system is set to two-layer and arrange between the two layers brace can make two-layer between fill air, improve the insulation effect of integral insulation structure, uniform brace can ensure the intensity of insulation system.
Description
Technical field
The utility model relates to Digital Transmission field of cable technology, is specially a kind of bend resistance digital signal cable.
Background technology
Along with electrified development, in current equipment use, digital data transmission is even more important.In order to ensure signal transmission quality, existing digital signal cable is typically provided with internal shield, but, run into interference more serious time, the distortion of Signal transmissions can be caused.Meanwhile, due to the restriction of environment for use, digital signal cable is in use often easily subject to external pressure impact, easily causes internal core to be damaged, thus affects signal transmission effect.Therefore, how to manufacture a kind ofly anti-interferencely resistance toly to squeeze, the digital signal transmission cable of bend resistance, be problem demanding prompt solution.
Utility model content
The purpose of this utility model is to provide a kind of bend resistance digital signal cable, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of bend resistance digital signal cable, comprising: cable core, screen and composite jacket layer; Cable core comprises many holding wires and elastic insulator, and elastic insulator has circular cross-section, and being provided with cross section in the middle part of elastic insulator is the first circular axially extending bore, and axially extending bore inwall is provided with metal coating; Many holding wires are parallel to be longitudinally circumferentially uniformly distributed in insulator, multiple second axially extending bore is also provided with in elastic insulator, second axially extending bore is positioned at the side of adjacent two holding wires away from axle center, holding wire comprises the insulating barrier of four signal bodies in the middle part of being positioned at and coated four signal external body, four signal body star twistings, signal body is circumferentially uniformly distributed in elastic insulator; Screen is metal foil layer, and it is coated on cable core outside, and screen inside is provided with drainage thread; Composite jacket layer is extruded outside screen; Described composite jacket layer comprises the teflon insulation inner sleeve of annular and the teflon insulation overcoat of annular, teflon insulation outer wall of inside race is provided with to extraradial brace, brace is trapezoidal and arranges along described teflon insulation inner sleeve radial direction; The inner side of described brace is connected with teflon insulation inner sleeve, is connected outside brace with teflon insulation overcoat; Also support chip is provided with, the Exterior Supporting Plate that described support chip comprises inside spider and coordinates with inside spider in insulating case; Described inside spider is trapezoidal and arranges along described teflon insulation inner sleeve radial direction, and described Exterior Supporting Plate is trapezoidal and arranges along described teflon insulation overcoat radial direction, and Exterior Supporting Plate is that convergent manner is established around teflon insulation outer casing inner wall; Support interval is provided with between described inside spider outer rim and Exterior Supporting Plate inner edge.
As the utility model further technical scheme, the cross sectional shape of the second axially extending bore is preferably triangle.
As the utility model further technical scheme, brace is radially arranged around teflon insulation outer wall of inside race.
As the utility model further technical scheme, described brace and teflon insulation inner sleeve and teflon insulation overcoat are wholely set; Described inside spider and teflon insulation inner sleeve are wholely set; Exterior Supporting Plate and teflon insulation overcoat are wholely set.
Compared with prior art, the utility model bending or when being squeezed, brace in composite jacket layer play two-layer between connection function, support chip plays support and prevents metamorphosis, and the air between two-layer and two-layer polytetrafluoroethylene material play good insulating effect; By insulation system is set to two-layer and arrange between the two layers brace can make two-layer between fill air, improve the insulation effect of integral insulation structure, uniform brace can ensure the intensity of insulation system; Signal body star twisting in holding wire; make two pairs of signal bodies lay respectively in symmetric position, reduce cross-talk to greatest extent, and between holding wire, electromagnetic compatibility is better; on the other hand; in the middle part of elastic insulator, inwall is provided with metal coating, and outer wall is provided with screen, improves the capability of electromagnetic shielding of holding wire further; holding wire is longitudinal in elastic insulator; be provided with the first axially extending bore and the second axially extending bore in elastic insulator, when cable is subject to external compression, guard signal line is not damaged.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of a kind of bend resistance digital signal cable of the utility model.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1, a kind of bend resistance digital signal cable, comprising: cable core, screen 3 and composite jacket layer, cable core comprises many holding wires 1 and elastic insulator 2, elastic insulator 2 has circular cross-section, being provided with cross section in the middle part of elastic insulator 2 is the first circular axially extending bore 21, axially extending bore 21 inwall is provided with metal coating 22, metal coating 22 adopts aluminum metal coating, many holding wires 1 are parallel to be longitudinally circumferentially uniformly distributed in insulator 2, multiple second axially extending bore 23 is also provided with in elastic insulator 2, second axially extending bore 23 is positioned at the side of adjacent two holding wires 1 away from axle center, the cross sectional shape of the second axially extending bore 23 is preferably triangle, holding wire 1 comprises the insulating barrier 12 of four signal bodies 11 in the middle part of being positioned at and coated four signal body 11 outsides, four signal body 11 star twistings, signal body 11 is circumferentially uniformly distributed in elastic insulator 2, screen 3 is metal foil layer, and it is coated on cable core outside, and screen 3 inside is provided with drainage thread 31, composite jacket layer is extruded outside screen 3, described composite jacket layer comprises the teflon insulation inner sleeve 6 of annular and the teflon insulation overcoat 7 of annular, teflon insulation inner sleeve 6 outer wall is provided with to extraradial brace 5, brace 5 is trapezoidal and arranges along described teflon insulation inner sleeve 6 radial direction, and described brace 5 is radially arranged around teflon insulation inner sleeve 6 outer wall, the inner side of described brace 5 is connected with teflon insulation inner sleeve 6, is connected outside brace 5 with teflon insulation overcoat 7, also support chip is provided with, the Exterior Supporting Plate 8 that described support chip comprises inside spider 4 and coordinates with inside spider 4 in insulating case, described inside spider 4 is trapezoidal and arranges along described teflon insulation inner sleeve 6 radial direction, and described Exterior Supporting Plate 8 is trapezoidal and along the setting of described teflon insulation overcoat 7 radial direction, Exterior Supporting Plate 8 is that convergent manner is established around teflon insulation overcoat 7 inwall, support interval 9 is provided with between described inside spider 4 outer rim and Exterior Supporting Plate 8 inner edge,
Described brace 5 is wholely set with teflon insulation inner sleeve 6 and teflon insulation overcoat 7; Described inside spider 4 is wholely set with teflon insulation inner sleeve 6; Described Exterior Supporting Plate 8 is wholely set with teflon insulation overcoat 7.
Described brace 5 and support chip around the outer wall of teflon insulation inner sleeve 6 and the inwall of teflon insulation overcoat 7 and uniform intervals arrange, described inside spider 4 outer rim is circular protrusions, and described inside spider 4 inner edge is the arc-shaped recess coordinated with circular protrusions.
When the utility model bends, the brace in composite jacket layer play two-layer between connection function, support chip plays support and prevents metamorphosis, and the air between two-layer and two-layer polytetrafluoroethylene material play good insulating effect; By insulation system is set to two-layer and arrange between the two layers brace can make two-layer between fill air, improve the insulation effect of integral insulation structure, uniform brace can ensure the intensity of insulation system; Signal body star twisting in holding wire, make two pairs of signal bodies lay respectively in symmetric position, reduce cross-talk to greatest extent, and between holding wire, electromagnetic compatibility is better, on the other hand, in the middle part of elastic insulator, inwall is provided with metal coating, and outer wall is provided with screen, improves the capability of electromagnetic shielding of holding wire further, holding wire is longitudinal in elastic insulator, be provided with the first axially extending bore and the second axially extending bore in elastic insulator, when cable is subject to external compression, guard signal line is not damaged;
Signal body 11 is circumferentially uniformly distributed in elastic insulator 2, makes electromagnetic compatibility between holding wire better.The setting of drainage thread 31, ensures that cable has combined shielding effect, and is conducive to cable and carries out grounding.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (4)
1. a bend resistance digital signal cable, is characterized in that, comprising: cable core, screen and composite jacket layer; Cable core comprises many holding wires and elastic insulator, and elastic insulator has circular cross-section, and being provided with cross section in the middle part of elastic insulator is the first circular axially extending bore, and axially extending bore inwall is provided with metal coating; Many holding wires are parallel to be longitudinally circumferentially uniformly distributed in insulator, multiple second axially extending bore is also provided with in elastic insulator, second axially extending bore is positioned at the side of adjacent two holding wires away from axle center, holding wire comprises the insulating barrier of four signal bodies in the middle part of being positioned at and coated four signal external body, four signal body star twistings, signal body is circumferentially uniformly distributed in elastic insulator; Screen is metal foil layer, and it is coated on cable core outside, and screen inside is provided with drainage thread; Composite jacket layer is extruded outside screen; Described composite jacket layer comprises the teflon insulation inner sleeve of annular and the teflon insulation overcoat of annular, teflon insulation outer wall of inside race is provided with to extraradial brace, brace is trapezoidal and arranges along described teflon insulation inner sleeve radial direction; The inner side of described brace is connected with teflon insulation inner sleeve, is connected outside brace with teflon insulation overcoat; Also support chip is provided with, the Exterior Supporting Plate that described support chip comprises inside spider and coordinates with inside spider in insulating case; Described inside spider is trapezoidal and arranges along described teflon insulation inner sleeve radial direction, and described Exterior Supporting Plate is trapezoidal and arranges along described teflon insulation overcoat radial direction, and Exterior Supporting Plate is that convergent manner is established around teflon insulation outer casing inner wall; Support interval is provided with between described inside spider outer rim and Exterior Supporting Plate inner edge.
2. a kind of bend resistance digital signal cable according to claim 1, it is characterized in that, the cross sectional shape of the second axially extending bore is preferably triangle.
3. a kind of bend resistance digital signal cable according to claim 1, it is characterized in that, brace is radially arranged around teflon insulation outer wall of inside race.
4. a kind of bend resistance digital signal cable according to claim 1, is characterized in that, described brace and teflon insulation inner sleeve and teflon insulation overcoat are wholely set; Described inside spider and teflon insulation inner sleeve are wholely set; Exterior Supporting Plate and teflon insulation overcoat are wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304191.0U CN204667949U (en) | 2015-05-13 | 2015-05-13 | A kind of bend resistance digital signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304191.0U CN204667949U (en) | 2015-05-13 | 2015-05-13 | A kind of bend resistance digital signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204667949U true CN204667949U (en) | 2015-09-23 |
Family
ID=54138309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520304191.0U Expired - Fee Related CN204667949U (en) | 2015-05-13 | 2015-05-13 | A kind of bend resistance digital signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204667949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683772A (en) * | 2015-11-11 | 2017-05-17 | 衡阳恒飞电缆有限责任公司 | High-strength tensile cable |
-
2015
- 2015-05-13 CN CN201520304191.0U patent/CN204667949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683772A (en) * | 2015-11-11 | 2017-05-17 | 衡阳恒飞电缆有限责任公司 | High-strength tensile cable |
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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: 20150923 Termination date: 20160513 |