CN202601314U - Coaxial cable used for car audio - Google Patents
Coaxial cable used for car audio Download PDFInfo
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- CN202601314U CN202601314U CN 201220171993 CN201220171993U CN202601314U CN 202601314 U CN202601314 U CN 202601314U CN 201220171993 CN201220171993 CN 201220171993 CN 201220171993 U CN201220171993 U CN 201220171993U CN 202601314 U CN202601314 U CN 202601314U
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- coaxial cable
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- diameter
- car audio
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Abstract
The utility model discloses a coaxial cable used for car audio. A physical expanded polyethylene insulating layer is arranged outside a straight single wire with the diameter of 0.19 mm, the outer diameter of the physical expanded polyethylene insulating layer is 3.1 mm, a braided shielding layer is arranged outside the physical expanded polyethylene insulating layer, and a polyethylene protective jacket is arranged outside the braided shielding layer. The coaxial cable used for car audio disclosed by the utility model has more stable structure and lower attenuation in signal transmission.
Description
Technical field
The utility model relates to a kind of automobile audio and uses coaxial cable.
Background technology
In the prior art, a automobile audio uses the requirement of coaxial cable to be: conductor diameter is 0.19mm, and the insulation external diameter is 3.1mm, and the shielding external diameter is 3.6mm, and becoming flat external diameter is 4.9mm, and the characteristic impedance requirement is 140 Ω during its work.As shown in Figure 1; For a kind of automobile audio in the prior art with the cross-sectional view of coaxial cable; It is the zigzag monofilament of 0.19mm that the conductor 1 ' of this coaxial cable adopts diameter; This zigzag monofilament overall diameter of packing into is in the polyethylene insulation tube 2 ' of 3.1mm, outside polyethylene insulation tube, is provided with woven shield 3 ', outwards is provided with pvc sheath and igelite insulating barrier successively at woven shield 3 '.
The conductor of above-mentioned coaxial cable adopts zigzag; Conductor adopts polyethylene insulation tube outward; Conductor is always being changed at the section upper conductor of cable diverse location and the center relative position of polyethylene insulation tube; Its structural stability is relatively poor, thereby causes the performance of this coaxial cable to be in the variation, makes the decay of its signal transmission bigger.
The utility model content
To the problem that prior art exists, the purpose of the utility model is to propose a kind of automobile audio and uses coaxial cable, and the structure of this coaxial cable is more stable, and the decay of signal transmission is lower.
For reaching this purpose, the utility model adopts following technical scheme:
A kind of automobile audio is used coaxial cable, outside diameter is the straight monofilament of 0.19mm, is provided with the physically foamed pe insulation layer.
Preferably, outside the physically foamed pe insulation layer, be provided with woven shield, outside woven shield, be provided with pvc sheath.
Preferably, the external diameter of physically foamed pe insulation layer is 3.1mm.
Based on disclosing of above technical scheme, the utility model possesses following beneficial effect:
The disclosed automobile audio of the utility model is used coaxial cable; The employing diameter is that the alternative original diameter of the straight monofilament of 0.19mm is the zigzag monofilament of 0.19mm; Adopt the physically foamed pe insulation layer to substitute original polyethylene insulation tube; Characteristic impedance is 140 Ω during its work, has satisfied the performance requirement of sound equipment.The structure of above-mentioned coaxial cable is more stable, thereby makes its performance also more stable, and the decay of its signal transmission is lower.
Description of drawings
Fig. 1 be in the prior art a kind of automobile audio with the cross-sectional view of coaxial cable.
Fig. 2 is the cross-sectional view of a kind of automobile audio of the utility model proposition with coaxial cable.
Embodiment
Further specify the technical scheme of the utility model below in conjunction with accompanying drawing and through embodiment:
As shown in Figure 2, a kind of automobile audio that proposes for the utility model is with the cross-sectional view of coaxial cable.
With reference to accompanying drawing; A kind of automobile audio that the utility model proposes is used coaxial cable;, diameter is provided with physically foamed pe insulation layer 2 outside being the straight monofilament 1 of 0.19mm; The external diameter of physically foamed pe insulation layer 2 is 3.1mm, outside physically foamed pe insulation layer 2, is provided with woven shield 3, outside woven shield 3, is provided with pvc sheath 4.
The employing diameter is that the alternative original diameter of straight monofilament of 0.19mm is the zigzag monofilament of 0.19mm in the above-mentioned coaxial cable; Adopt the physically foamed pe insulation layer to substitute original polyethylene insulation tube; Characteristic impedance is 140 Ω during its work, has satisfied the performance requirement of sound equipment.Above-mentioned automobile audio is more stable with the structure of coaxial cable, thereby makes its performance also more stable, and the decay of its signal transmission is lower.
In the utility model, in the physically foamed pe insulation production line, the insulation external diameter that equipment allows to produce cable is between 0.5～5.0mm; Like this; 3.1mm the insulation external diameter is within the limit of power of production line, simultaneously, the maximum foam degrees of this production line can reach 78%.Through calculating, diameter is the conductor of 0.19mm, and the insulation external diameter is 3.1mm, and impedance is 140 Ω coaxial cables, and its foam degrees should be 69.1%, within the limit of power of production line.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the realization of the utility model does not receive the restriction of aforesaid way; As long as adopted the method design of utility model and the various improvement that technical scheme is carried out; Or the design of utility model and technical scheme are directly applied to other occasion without improving, all in the protection range of the utility model.
Claims (3)
1. an automobile audio is used coaxial cable, it is characterized in that, outside diameter is the straight monofilament of 0.19mm, is provided with the physically foamed pe insulation layer.
2. automobile audio according to claim 1 is used coaxial cable, it is characterized in that, outside the physically foamed pe insulation layer, is provided with woven shield, outside woven shield, is provided with pvc sheath.
3. automobile audio according to claim 2 is used coaxial cable, it is characterized in that, the external diameter of physically foamed pe insulation layer is 3.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171993 CN202601314U (en) | 2012-04-20 | 2012-04-20 | Coaxial cable used for car audio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171993 CN202601314U (en) | 2012-04-20 | 2012-04-20 | Coaxial cable used for car audio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601314U true CN202601314U (en) | 2012-12-12 |
Family
ID=47318846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220171993 Expired - Fee Related CN202601314U (en) | 2012-04-20 | 2012-04-20 | Coaxial cable used for car audio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629507A (en) * | 2012-04-20 | 2012-08-08 | 安徽天星光纤通信设备有限公司 | Coaxial cable for automobile sound system |
-
2012
- 2012-04-20 CN CN 201220171993 patent/CN202601314U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629507A (en) * | 2012-04-20 | 2012-08-08 | 安徽天星光纤通信设备有限公司 | Coaxial cable for automobile sound system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 239300 Anhui city of Chuzhou province Tianchang Qin LAN Zhen Shou Chang Lu No. 6 Patentee after: Anhui Star Cable Technology Co. Ltd. Address before: 239341 Anhui city of Chuzhou province Tianchang Qin LAN Zhen Shou Chang Lu No. 6 Patentee before: Anhui Tianxing Optical Fiber Communication Equipment Co., Ltd. |
|
| 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: 20121212 Termination date: 20180420 |