CN2919468Y - USB cable with wire able to be coilled - Google Patents
USB cable with wire able to be coilled Download PDFInfo
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- CN2919468Y CN2919468Y CN 200620056473 CN200620056473U CN2919468Y CN 2919468 Y CN2919468 Y CN 2919468Y CN 200620056473 CN200620056473 CN 200620056473 CN 200620056473 U CN200620056473 U CN 200620056473U CN 2919468 Y CN2919468 Y CN 2919468Y
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- usb cable
- pvc plastic
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Abstract
The utility model discloses a reeled USB cable. The outer layer of the utility model is of PVC plastic cement layer; a group of signal line, a group of power cable and a grounding line are arranged in the utility model and the utility model also contains a conductive PVC plastic layer coating the signal line and the outside of the power line; the conductive PVC layer is provided with the grounding line; the signal line, the power wires and the external of the ground wires are provided with a shielding layer of stranded tin and copper-planting. The USB cable the utility model discloses replaces the conventional signal shielding layer composed of woven layer by tin and copper-planting and aluminum foil layer and adopts the electric conduction conductor PVC plastic layer, which plays a good signal shielding role; and the electric conduction conductor PVC plastic layer has good flexibility and stereotypes which can be easily processed to reel circling slingshot and can be stereotyped into slingshot-like with all sizes and lengths, good elasticity, after tensile fast contracting back to the original status.
Description
Technical field
The utility model relates to a kind of cable, especially relate to a kind of can be around the USB of catapult spiral cable structure.
Background technology
As shown in Figure 1, for having the schematic cross-section of conventional USB cable structure now.The outermost layer of USB cable 100 is a PVC plastic layer 110, and from outside to inside, next is provided with by the braid 120 of tin-coated copper and aluminium foil layer 130, and penetralia is set to one group of holding wire 150 and one group of power line 160.Because the signal of transmission upper frequency in the USB cable 100, need avoid the interference of external interference signals to transmission signals in the above-mentioned holding wire 150 as far as possible, so above-mentioned braid 120 and aluminium foil layer 130 form metal screen layer, and between above-mentioned braid 120 and aluminium foil layer 130, be provided with an earth connection 140, shield the interference of external signal above-mentioned holding wire 150 and power line 160 with this.
The USB cable 100 of above-mentioned conventional structure is linear pattern, because the above-mentioned braid 120 that plays shielding and protective effect that is provided with in the cable makes cable do winding type around catapult; As around the catapult spiral, wire rod is rounding not, and will follow the string, and can not finalize the design, and does not have the effect of catapult spiral.
Summary of the invention
For addressing the above problem, but the purpose of this utility model is to provide a kind of spiral USB cable, and the USB cable of this structure can be done winding type around catapult.
For achieving the above object, the utility model has adopted following technical scheme to realize: but a kind of spiral USB cable, its outermost layer is set to the PVC plastic layer, its inside has one group of holding wire, one group of power line and an earth connection, also comprise a conduction PVC plastic layer, coat above-mentioned holding wire and said power outside; And in above-mentioned conduction PVC layer, an earth connection is set; The outside of above-mentioned holding wire, said power and above-mentioned earth connection is provided with the screen of stranded tin-coated copper.
Compared with prior art, the USB cable that is disclosed in the utility model, utilize conduction conductor PVC plastic layer to replace the signal shielding layer that conventional braid and aluminium foil layer by tin-coated copper formed, when having played the good signal shielding action, utilize this conduction conductor PVC better elastic that plastic layer has and constancy, can processed easily spiral around catapult, and the catapult shape that can curl and be shaped into all size and length, good springiness, but fast contraction is returned original state after the stretching.
Description of drawings
Fig. 1 is the schematic cross-section of the USB cable structure of existing routine.
Fig. 2 is the schematic cross-section of the USB cable structure that the utility model disclosed.
Fig. 3 is USB cable that the utility model the disclosed schematic diagram around the catapult spiral.
Embodiment
As shown in Figure 2, be the schematic cross-section of the USB cable structure that the utility model disclosed.The utility model USB cable 200 outermost layers that disclosed be PVC plastic layer 210, next is set to conduct electricity conductor PVC plastic layer 220, penetralia is set to one group of holding wire 230 and one group of power line 240, and above-mentioned conductor PVC plastic layer 220 coats above-mentioned holding wire 230 and said power 240; Among the above-mentioned conduction conductor PVC plastic layer 220, be provided with an earth connection 250.And the most external of above-mentioned holding wire 230, said power 240 and above-mentioned earth connection 250 is provided with the screen of stranded tin-coated copper, disturbs with the signal between shielding external signal and the different circuit.
Because conduction PVC plastic cement is with the performance of conventional PVC plastic cement and conductor,, and can also be used to screen as cable as the conductor performance so it has elasticity and constancy preferably.So in the utility model, existing conventional USB cable 100 is compared, the USB cable 200 that is disclosed in the utility model, utilize conduction conductor PVC plastic layer 220 to replace the signal shielding layer that conventional braid 120 and aluminium foil layer 130 by tin-coated copper formed, when having played the good signal shielding action, utilize this conduction conductor PVC plastic layer 220 has better elastic and constancy, can processed easily spiral around catapult, as shown in Figure 3, and the catapult shape that can curl and be shaped into all size and length, good springiness, but fast contraction is returned original state after the stretching.
In addition, the USB cable 200 that the utility model disclosed, through the time-domain reflectomer test, its test result sees the following form:
Time-domain reflectomer test parameter result
| Parameter | Specification (maximum) | Specification (minimum value) | Mean value (maximum) | Mean value (minimum) | Unit | Test mode |
| Differential impedance | 103.5 | 76.5 | 98.38 | 88.51 | Ohm | By |
| Common code impedance | 39 | 21 | 32.35 | 28.30 | Ohm | By |
| Transmission delay | 26 | -- | 10.28 | Psec/bar | By | |
| Transmission delay differences | 100 | -- | 1.50 | Psec/bar | By |
And the USB cable 200 that utility model disclosed is through the test of network analyzer, and its test result sees the following form:
The network analyzer test result
| Parameter | Frequency (MHZ) | Specification (maximum) | Specification (minimum value) | Mean value (dB/ bar) | Test mode |
| Decay | 0.064 | -- | -0.08 | ||
| Decay | 0.256 | -- | -0.11 | ||
| Decay | 0.512 | -- | -0.13 | -0.07 | By |
| Decay | 0.772 | -- | -0.15 | -0.08 | By |
| Decay | 1 | -- | -0.2 | -0.10 | By |
| Decay | 4 | -- | -0.39 | -0.20 | By |
| Decay | 8 | -- | -0.57 | -0.28 | By |
| Decay | 12 | -- | -0.76 | -0.34 | By |
| Decay | 24 | -- | -0.95 | -0.53 | By |
| Decay | 48 | -- | -1.35 | -0.64 | By |
| Decay | 96 | -- | -1.9 | -0.88 | By |
| Decay | 200 | -- | -3.2 | -1.21 | By |
| Decay | 400 | -- | -5.8 | -1.63 | By |
Comprehensive above-mentioned time-domain reflectomer test parameter result and network analyzer test result, it shows: the differential impedance of the USB cable 200 that the utility model disclosed, common code impedance, transmission delay, transmission delay differences and fade performance parameter, all can satisfy existing USB2.0 association and require the high frequency measurement parameters.
Claims (2)
- But 1. spiral USB cable, its outermost layer is set to the PVC plastic layer, and its inside has one group of holding wire, one group of power line and an earth connection, it is characterized in that: also comprise a conduction PVC plastic layer, coat above-mentioned holding wire and said power outside; And in above-mentioned conduction PVC layer, an earth connection is set.
- 2. but spiral USB cable as claimed in claim 1 is characterized in that: the outside of above-mentioned holding wire, said power and above-mentioned earth connection is provided with the screen of stranded tin-coated copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620056473 CN2919468Y (en) | 2006-03-20 | 2006-03-20 | USB cable with wire able to be coilled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620056473 CN2919468Y (en) | 2006-03-20 | 2006-03-20 | USB cable with wire able to be coilled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2919468Y true CN2919468Y (en) | 2007-07-04 |
Family
ID=38217286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620056473 Expired - Fee Related CN2919468Y (en) | 2006-03-20 | 2006-03-20 | USB cable with wire able to be coilled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2919468Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609732B (en) * | 2009-07-24 | 2012-07-04 | 上海德力西集团有限公司 | Shielding layer structure of flame-retardant cable and production process thereof |
| CN109206787A (en) * | 2018-09-05 | 2019-01-15 | 福泰克（连云港）电子有限公司 | A kind of vehicle-mounted heat-resisting cold-resistant USB3.0 cable |
-
2006
- 2006-03-20 CN CN 200620056473 patent/CN2919468Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609732B (en) * | 2009-07-24 | 2012-07-04 | 上海德力西集团有限公司 | Shielding layer structure of flame-retardant cable and production process thereof |
| CN109206787A (en) * | 2018-09-05 | 2019-01-15 | 福泰克（连云港）电子有限公司 | A kind of vehicle-mounted heat-resisting cold-resistant USB3.0 cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 Termination date: 20120320 |