CN208385074U - A kind of with signal ground line and not balanced transmission cable of shielding construction - Google Patents
A kind of with signal ground line and not balanced transmission cable of shielding construction Download PDFInfo
- Publication number
- CN208385074U CN208385074U CN201820815092.2U CN201820815092U CN208385074U CN 208385074 U CN208385074 U CN 208385074U CN 201820815092 U CN201820815092 U CN 201820815092U CN 208385074 U CN208385074 U CN 208385074U
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- CN
- China
- Prior art keywords
- main traverse
- shielding construction
- line
- balanced transmission
- signal ground
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of with signal ground line and the not no balanced transmission cable of shielding construction; including several main traverse lines and exterior cover sheets; several main traverse lines are externally arranged inside protective layer; the inside of the exterior cover sheets there also is provided ground connection light current cable, and several main traverse lines are between ground connection light current cable closely together with pair twist.The utility model unique structure is offset interference by setting signal ground line, eliminates original shielding construction, can reduce cost.
Description
Technical field
The utility model relates to transmission cable fields, have signal ground line and no shielding construction more particularly to one kind
Balanced transmission cable.
Background technique
Weak electric signal transmission, mainstream technology has to be transmitted using coaxial cable and twisted pair, we are used to all the time
Use the structures such as shielding, it is intended to reduce external interference, but cost will increase using special shielding construction.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of with signal ground line and not no shielding construction
Balanced transmission cable, unique structure are offset interference by setting signal ground line, eliminate original shielding construction, energy
Reduce cost.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing one kind has signal ground line and does not have
There are the balanced transmission cable of shielding construction, including several main traverse lines and exterior cover sheets, several main traverse lines are arranged in outer
Inside portion's protective layer, the inside of the exterior cover sheets there also is provided ground connection light current cable, and several main traverse lines and ground connection are weak
Closely pair twist is together between electric wire cable.
As a kind of supplement to technical solution described in the utility model, the main traverse line has four or two.
Further, insulating protective layer is enclosed on the outside of the ground connection light current cable and main traverse line.
Further, four main traverse lines are arranged in rectangular arranged, and the main traverse line being arranged diagonal two-by-two and connects.
Further, the sectional area of the main traverse line is controlled in 0.1mm2-0.35mm2。
Further, the color of the insulating protective layer in the outside of each main traverse line and ground connection light current cable is different.
The utility model has the advantages that the utility model relates to a kind of with signal ground line and the not no balanced transmission line of shielding construction
Cable, unique structure are offset interference by setting signal ground line, eliminate original shielding construction, can reduce cost.
Detailed description of the invention
Fig. 1 is a kind of half-sectional structure chart of structure of the utility model；
Fig. 2 is the half-sectional structure chart of another structure of the utility model；
Fig. 3 is the interference schematic diagram of the utility model lack of equilibrium formula transmission；
Fig. 4 is to interfere schematic diagram after the utility model uses balanced transmission.
Diagram: 1, exterior cover sheets；2, it is grounded light current cable；3, main traverse line；4, insulating protective layer.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please the appended claims limited range.
As shown in Figs 1-4, the embodiments of the present invention is related to a kind of with signal ground line and no shielding construction
Balanced transmission cable, including several main traverse lines 3 and exterior cover sheets 1, several main traverse lines 3 are externally arranged protective layer
Inside 1, the inside of the exterior cover sheets 1 there also is provided ground connection light current cable 2, several main traverse lines 3 and ground connection weak electric wire
Closely pair twist is together between cable 2.
As a kind of supplement to technical solution described in the utility model, the main traverse line 3 has four or two.
The outside of the ground connection light current cable 2 and main traverse line 3 is enclosed with insulating protective layer 4, prevents ground connection light current cable 2
Puncturing housing with the breaking part of main traverse line 3 leads to short circuit.
Further, four main traverse lines 3 are arranged in rectangular arranged, and the main traverse line 3 being arranged diagonal two-by-two and connects.
Further, the sectional area of the main traverse line 3 is controlled in 0.1mm2-0.35mm2。
Further, the color of the insulating protective layer 4 in the outside of each main traverse line 3 and ground connection light current cable 2 is different,
Each main traverse line 3 is conveniently distinguished, makes when its arrangement to be not in mistake.
As an embodiment of the present invention, balanced type signal is provided or is received, balanced type signal by external equipment
For tool there are two signal output contact, referred to as hot junction and cold junction, cold junction signal is the inverted signal of hot junction signal.
It is respectively leading body -1, leading body -2, leading body -1A that cable inner, which is provided with four main traverse lines, 3,4 main traverse lines,
With leading body -2A, wherein leading body -1 is connected to the hot junction of balanced type signal, and leading body -2 is connected to the cold joint of balanced type signal
Point, leading body -1A need to leading body -1 and be connected to balanced type signal hot junction, leading body -2A need to leading body -2 and be connected to flat
The cold junction of weighing apparatus formula signal.
Being grounded light current cable 2 is that cable terminations need specific additional power supply to retain operability, such as condenser microphone,
It needs to be transmitted through more main traverse lines 3 and ground connection light current cable 2 at this time using phantom power bias.
The utility model unique structure is offset interference by setting signal ground line, eliminates original shielding construction,
Cost can be reduced.
Claims (6)
1. a kind of with signal ground line and not balanced transmission cable of shielding construction, including several main traverse lines (3) and
Exterior cover sheets (1), which is characterized in that several main traverse lines (3) are externally arranged protective layer (1) inside, the external guarantor
The inside of sheath (1) there also is provided ground connection light current cable (2), close between several main traverse lines (3) and ground connection light current cable (2)
Ground pair twist is together.
2. according to claim 1 have signal ground line and not the balanced transmission cable of shielding construction, feature
Be: the main traverse line (3) has four or two.
3. according to claim 2 have signal ground line and not the balanced transmission cable of shielding construction, feature
It is: is enclosed with insulating protective layer (4) on the outside of the ground connection light current cable (2) and main traverse line (3).
4. according to claim 2 have signal ground line and not the balanced transmission cable of shielding construction, feature
Be: four main traverse lines (3) arrange that the main traverse line (3) being arranged diagonal two-by-two and connects in rectangular arranged.
5. according to claim 1 have signal ground line and not the balanced transmission cable of shielding construction, feature
Be: the sectional area of the main traverse line (3) is controlled in 0.1mm2-0.35mm2。
6. according to claim 1 have signal ground line and not the balanced transmission cable of shielding construction, feature
Be: the color of the insulating protective layer (4) in the outside of each main traverse line (3) and ground connection light current cable (2) is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820815092.2U CN208385074U (en) | 2018-05-29 | 2018-05-29 | A kind of with signal ground line and not balanced transmission cable of shielding construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820815092.2U CN208385074U (en) | 2018-05-29 | 2018-05-29 | A kind of with signal ground line and not balanced transmission cable of shielding construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208385074U true CN208385074U (en) | 2019-01-15 |
Family
ID=64968527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820815092.2U Expired - Fee Related CN208385074U (en) | 2018-05-29 | 2018-05-29 | A kind of with signal ground line and not balanced transmission cable of shielding construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208385074U (en) |
-
2018
- 2018-05-29 CN CN201820815092.2U patent/CN208385074U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |