CN203607152U - Telephone instruction cable - Google Patents
Telephone instruction cable Download PDFInfo
- Publication number
- CN203607152U CN203607152U CN201320804177.8U CN201320804177U CN203607152U CN 203607152 U CN203607152 U CN 203607152U CN 201320804177 U CN201320804177 U CN 201320804177U CN 203607152 U CN203607152 U CN 203607152U
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- Prior art keywords
- cable
- power supply
- periphery
- cable core
- signal transmission
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- Expired - Fee Related
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Abstract
The utility model discloses a telephone instruction cable comprising a cable core component which transmits a telephone instruction and a sheath which wraps the cable core component. The cable core component comprises a power supply wire core set and multiple signal transmission core wires which are arranged on the periphery of the power supply wire core set. The telephone instruction cable comprises the cable core component which transmits the telephone instruction and the sheath which protects the cable core component. The cable core component comprises the power supply wire core set and multiple signal transmission core wires which are arranged on the periphery of the power supply wire core set. The structure is simple, and communication of cables of other lines is not influenced when a segment of the cable or an end device breaks down in communication so that the telephone instruction cable is wider in application.
Description
Technical field
The utility model relates to new communication technique field, relates in particular to a kind of telephone order cable.
Background technology
Along with the development of the communication technology of metallurgical industry, original telecommunication cable cannot meet instructions for use, for example cable adopts bus mode, be that termination equipment connection all in system is on same circuit, any two or more user's off-hook when use, between user, just can directly converse, wherein comprise MPTY.In the time of certain section of cable in system or certain termination device fails, due to the particularity that cable connects, likely make whole communication system normally not use, also do not have on the market at present a kind of cable to address the above problem.
Utility model content
In order to solve the technical problem existing in background technology, the utility model proposes a kind of telephone order cable.
A kind of telephone order cable the utility model proposes, comprises and transmits the cable core assembly of telephone order and the sheath of parcel cable core assembly, cable core assembly comprises power supply core group and several signal transmission heart yearn, and signal transmission heart yearn is arranged in the periphery of power supply core group.
Preferably, power supply core group is by several power supply heart yearn twisted synthesizing cables, each root power supply heart yearn comprises two power supply cored wire conductors and a bare conductor, the periphery of power supply cored wire conductor extrudes mains isolation layer, mains isolation layer adopts crosslinked polyethylene to extrude preparation, for electric insulation, reduce signal transmission attenuation.
Preferably, the periphery of power supply heart yearn parcel power sourced electric separator, adopts the polyester belt preparation of having a swollen head; The periphery litzendraht wire group screen of power sourced electric separator, adopts copper wire material used braiding.
Preferably, power supply core group is by two power supply heart yearn twisted synthesizing cables.
Preferably, signal transmission heart yearn comprises signal transmission cored wire conductor, for loaded current, signal, guarantees signal transmission, and the periphery of signal transmission cored wire conductor extrudes signal isolation layer, adopts crosslinked polyethylene to extrude preparation; The periphery parcel signal electrical isolation layer of signal isolation layer, adopts the polyester belt preparation of having a swollen head; The periphery braiding insulated wire cores screen of signal electrical isolation layer, adopts copper wire material used braiding.
Preferably, also comprise cable core separator and cable core screen between cable core assembly and sheath, cable core separator adopts the polyester belt preparation of having a swollen head, and is wrapped in the periphery of cable core assembly; Cable core screen adopts copper wire material used preparation, is knitted to the periphery of conductor screen.
Preferably, transmission heart yearn is evenly arranged in the periphery of cable core assembly.
Telephone order cable of the present utility model, it comprises the cable core assembly that transmits telephone order and the sheath that protects cable core assembly, cable core assembly comprises power supply core group and several signal transmission heart yearn, signal transmission heart yearn is arranged in the periphery of power supply core group, this is simple in structure, and in the time of certain section of cable in communication or certain termination device fails, do not affect the communication of All other routes cable, apply more extensive.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of a kind of telephone order cable that the utility model proposes;
Fig. 2 is the schematic cross-section of power supply heart yearn of the present utility model;
Fig. 3 is the schematic cross-section of signal transmission heart yearn of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Please refer to Fig. 1, a kind of telephone order cable the utility model proposes, it comprises the cable core assembly 40 that transmits telephone order and the sheath 43 that wraps up cable core assembly 40, sheath 43 is by adopting high strength material to prepare, for protecting cable core assembly 40; Wherein, cable core assembly 40 comprises power supply core group 20 and several signal transmission heart yearn 30, and signal transmission heart yearn 30 is arranged in the periphery of power supply core group 20.In the time of certain section of cable in communication or certain termination device fails, do not affect the communication of All other routes cable, apply more extensive.
Signal transmission heart yearn 30 is evenly arranged in the periphery of cable core assembly 40, conveniently extrudes stranding, good looking appearance.
Refer to Fig. 2; power supply core group 20 is by several power supply heart yearn 10 twisted synthesizing cables; each root power supply heart yearn 10 comprises two power supply cored wire conductors 11 and a bare conductor 13; bare conductor 13 adopts bare copper wire multiply synnema to form; flow into the earth for interference source electric current or leakage current by it, thereby reach the effect of protection power source heart yearn 10.
The periphery of power supply cored wire conductor 11 extrudes mains isolation layer 12, and mains isolation layer 12 adopts crosslinked polyethylene to extrude preparation, for electric insulation, reduces signal transmission attenuation.The periphery parcel power sourced electric separator 14 of power supply heart yearn 10, adopts the polyester belt preparation of having a swollen head; The periphery litzendraht wire group screen 15 of power sourced electric separator 14, adopts copper wire material used braiding; Wherein, power sourced electric separator 14 can be for the insulating effect of electric insulation, splicing thread group screen 15 and conductor, and the effect of line group screen 15 is: when the current ratio passed through when power line is larger, cable can produce magnetic field around, and line group screen 15 can be electromagnetic-field-shielded in cable; In addition, line group screen 15 can play certain ground protection effect, and in the time there is breakage in cable core, the electric current leaking can flow to ground network along screen, plays the effect of safeguard protection.
Power supply core group 20 is by two power supply heart yearn 10 twisted synthesizing cables.
Refer to Fig. 3, signal transmission heart yearn 30 comprises signal transmission cored wire conductor 31, for loaded current, signal, guarantees signal transmission, and the periphery of signal transmission cored wire conductor 31 extrudes signal isolation layer 32, adopts crosslinked polyethylene to extrude preparation; The periphery parcel signal electrical isolation layer 33 of signal isolation layer 32, adopts the polyester belt preparation of having a swollen head; The periphery braiding insulated wire cores screen 34 of signal electrical isolation layer 33, adopts copper wire material used braiding; Wherein, electrical isolation layer 33 can be for signal isolation, strengthen the insulating effect of conductor screen 34 and conductor, and the effect of conductor screen 34 is: be used for shielding alien influence, external electromagnetic interference can affect signal normal transmission.
In conjunction with Fig. 1, between cable core assembly 40 and sheath 43, also comprise cable core separator 41 and cable core screen 42, cable core separator 41 adopts the polyester belt preparation of having a swollen head, and is wrapped in the periphery of cable core assembly 40; Cable core screen 42 adopts copper wire material used preparation, is knitted to the periphery of conductor screen 34.
Telephone order cable of the present utility model, it comprises the cable core assembly 40 that transmits telephone order and the sheath 43 that protects cable core assembly 40, cable core assembly 40 comprises power supply core group 20 and several signal transmission heart yearn 30, signal transmission heart yearn 30 is arranged in the periphery of power supply core group 20, this is simple in structure, and in the time of certain section of cable in communication or certain termination device fails, do not affect the communication of All other routes cable, apply more extensive.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; be equal to replacement or changed according to the technical solution of the utility model and utility model design thereof, within all should being encompassed in protection range of the present utility model.
Claims (7)
1. a telephone order cable, is characterized in that, comprising: the cable core assembly (40) of transmission telephone order and the sheath (43) of the described cable core assembly of parcel (40), wherein:
Described cable core assembly (40) comprises power supply core group (20) and several signal transmission heart yearn (30), and described signal transmission heart yearn (30) is arranged in the periphery of described power supply core group (20).
2. telephone order cable according to claim 1, is characterized in that, described power supply core group (20) is by several power supply heart yearns (10) twisted synthesizing cable, wherein:
Described in each root, power supply heart yearn (10) comprises two power supply cored wire conductors (11) and a bare conductor (13), the periphery of described power supply cored wire conductor (11) extrudes the mains isolation layer (12) being provided with for electric insulation, reduction signal transmission attenuation, and described mains isolation layer (12) adopts crosslinked polyethylene to extrude preparation.
3. telephone order cable according to claim 2, is characterized in that, the periphery of described power supply heart yearn (10) parcel power sourced electric separator (14) adopts the polyester belt preparation of having a swollen head;
The periphery of described power sourced electric separator (14) weaves wired group screen and covers layer (15), and described line group screen (15) adopts copper wire material used braiding.
4. telephone order cable according to claim 3, is characterized in that, described power supply core group (20) is by two power supply heart yearns (10) twisted synthesizing cable.
5. telephone order cable according to claim 1, is characterized in that, described signal transmission heart yearn (30) comprises signal transmission cored wire conductor (31), wherein:
The periphery of described signal transmission cored wire conductor (31) extrudes signal isolation layer (32), and described signal isolation layer (32) adopts crosslinked polyethylene to extrude preparation;
The periphery parcel signal electrical isolation layer (33) of described signal isolation layer (32), described signal electrical isolation layer (33) adopts the polyester belt preparation of having a swollen head;
The periphery braiding insulated wire cores screen (34) of described signal electrical isolation layer (33), described conductor screen (34) adopts copper wire material used braiding.
6. according to the telephone order cable described in any one in claim 1 to 5, it is characterized in that, between described cable core assembly (40) and sheath (43), be also provided with cable core separator (41) and cable core screen (42), wherein:
Described cable core separator (41) adopts the polyester belt preparation of having a swollen head, and is wrapped in the periphery of described cable core assembly (40);
Described cable core screen (42) adopts copper wire material used preparation, is knitted to the periphery of described conductor screen (34).
7. telephone order cable according to claim 6, is characterized in that, described signal transmission heart yearn (30) is evenly arranged in the periphery of described cable core assembly (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804177.8U CN203607152U (en) | 2013-12-09 | 2013-12-09 | Telephone instruction cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804177.8U CN203607152U (en) | 2013-12-09 | 2013-12-09 | Telephone instruction cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607152U true CN203607152U (en) | 2014-05-21 |
Family
ID=50719815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320804177.8U Expired - Fee Related CN203607152U (en) | 2013-12-09 | 2013-12-09 | Telephone instruction cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203607152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632766A (en) * | 2013-12-09 | 2014-03-12 | 中特华星电缆股份有限公司 | Phone instruction cable |
| CN111653385A (en) * | 2020-07-09 | 2020-09-11 | 浙江万马集团特种电子电缆有限公司 | Ultra-high-elasticity torsion-resistant walkie-talkie spring wire for firefighters and production method thereof |
-
2013
- 2013-12-09 CN CN201320804177.8U patent/CN203607152U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632766A (en) * | 2013-12-09 | 2014-03-12 | 中特华星电缆股份有限公司 | Phone instruction cable |
| CN111653385A (en) * | 2020-07-09 | 2020-09-11 | 浙江万马集团特种电子电缆有限公司 | Ultra-high-elasticity torsion-resistant walkie-talkie spring wire for firefighters and production method thereof |
| CN111653385B (en) * | 2020-07-09 | 2021-08-20 | 浙江万马集团特种电子电缆有限公司 | Ultra-high-elasticity torsion-resistant walkie-talkie spring wire for firefighters and production method thereof |
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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 |
Granted publication date: 20140521 Termination date: 20201209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |