CN2636457Y - Transmission cable - Google Patents
Transmission cable Download PDFInfo
- Publication number
- CN2636457Y CN2636457Y CN 03273020 CN03273020U CN2636457Y CN 2636457 Y CN2636457 Y CN 2636457Y CN 03273020 CN03273020 CN 03273020 CN 03273020 U CN03273020 U CN 03273020U CN 2636457 Y CN2636457 Y CN 2636457Y
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- CN
- China
- Prior art keywords
- connector
- cable
- transmission cable
- connectors
- cables
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a bus type transmission cable, which comprises a plurality of connectors and cables to connect with the connector. Wherein, the cable for each connector is connected with other two cables in parallel at least, thus providing a connector head with three branches. The cables respectively led out from other two connector heads are respectively connected with other connector head or a cable of other connectors. External connector surface is provided with a plurality of connecting terminals of the connector connected as above, thus facilitating to adopt a smaller RJ45 connector or other connectors to form a bus type transmission cable. The cable can be applied to equipments with a limited mounting space.
Description
Technical field
The utility model relates to the plant equipment in the communications field, is specifically related to a kind of transmission cable.
Background technology
The RS485 serial ports is widely used in the electronic information industry as a kind of standard serial port, and the cable that is used to transmit the RS485 rs 232 serial interface signal has accordingly also obtained using on a large scale.
In the prior art, the cable of point-to-point formula uses at most, and respectively there is a connector that is applicable to the transmission of RS485 rs 232 serial interface signal at these cable two ends, and common connector has DB9 connector, DB15 connector, RJ45 (network interface) connector.These two connectors may be that two DB9 connectors also may be two DB15 connectors or RJ45 (network interface) connector, also may be any two in these 3 kinds of connectors.And what connect two connectors is one section cable that is applicable to RS485 rs 232 serial interface signal transmission.This cable can only be used for the point-to-point transmission of signal.Can not be used for the bus type transmission.
When the signal demand bus type transmits, just need to use cable to connect the bus type transmission cable that a plurality of connectors constitute.Generally speaking, because D connector physical dimensions such as DB9, DB15 are bigger, its inner binding post can hold two cable heart yearns easily, so the connector during bus transfer is generally selected D connectors such as DB9, DB15 for use, between the binding post of connector the inside, carry out short circuit by heart yearn, make the bus type transmission cable.The structure diagram of the serial port connector of this realization bus type transmission adopts a plurality of D connectors 1 and many stube cables 2 and connects the back to constitute as shown in Figure 3.
Why this bus type transmission cable can carry out short circuit by the cable heart yearn between the binding post of connector the inside, be because the physical dimension of D connector is bigger, terminal connections space abundance, the inside of D connector 1 can hold two cables 2 that connect together, and processing technology realizes easily.But in some cases, be used for structure space on veneer, panel or the Handle Bar of mounted connector and all compare nervously, can't use this larger-size D connector, the bus type transmission cable that adopts this connected mode to constitute just can't use.
The utility model content
The utility model provides a kind of transmission cable, can not be applied to problem in the little connector of structure space to solve existing bus type transmission cable.
The technical scheme that the utility model provides is as follows:
A kind of transmission cable structure, comprise: a plurality of connectors and connect the cable of a plurality of connectors, wherein, the stube cable of each connector connects together with other two stube cables respectively at least, constitute the connector of one at least three branch, described at least two stube cables of being drawn by connector in addition are connected with the stube cable of other connector or other connector respectively.
Be provided with heat-shrinkable T bush around the described connector.
Be provided with internal layer protection mould around the described heat-shrinkable T bush.
Described internal layer protection mould outside is surrounded by Copper Foil.
Described Copper Foil outside is provided with the outer layer protection mould.
The bus type transmission cable that the utility model provides has following advantage: be arranged on the connector body outside by the link with a plurality of connectors that connect by bus mode, can adopt the RJ45 type connector of small size or the connector of other model to constitute the bus type transmission cable, this bus type cable more is applicable on the limited equipment of installing space and uses.
Description of drawings
Fig. 1 is the structural representation of existing bus type transmission cable;
Fig. 2 is the structural representation of the utility model bus type transmission cable;
Fig. 3 is the profile of connector in the bus type transmission cable.
Embodiment
With reference to Fig. 2, connector 3 in the cable (claiming network interface connector again) generally adopts the connector that structure is compact and volume is little, the stube cable 4 of each connector 3 connects together with other two stube cables 6 or stube cable 6,7 respectively, constitute the connector 5 of one three branch, other two stube cables 6,7 are connected with connector 5 or other connector 3 of other three branch respectively.
As shown in Figure 3, when making above-mentioned bus type transmission cable, can promptly earlier the corresponding heart yearn in three cables be welded together respectively with single cable in the connector 3 according to corresponding front line definition processing connector 5, put heat-shrinkable T bush 51 simultaneously with the mutually insulated between reinforced-core.Injection moulding constitutes internal layer protection mould 52 then, adds copper-clad paper tinsel 53 in internal layer protection mould outside, and Copper Foil 53 should have good electrical contact with the screen of three cables, and is last at the outside of Copper Foil injection moulding outer layer protection mould 54.The purpose of injection moulding internal layer protection mould 52 and outer layer protection mould 54 is the intensity of reinforced company's joint 5.
Though only be provided with five connectors in the bus type transmission cable illustrated in fig. 2, can also adopt as required to be less than five or more than five connectors, constitute with above-mentioned connected mode.
Claims (5)
1, a kind of transmission cable, comprise a plurality of connectors and connect the cable of a plurality of connectors, it is characterized in that, the stube cable of each connector connects together with other two stube cables respectively at least, constitute the connector of one at least three branch, described at least two stube cables of being drawn by connector in addition are connected with the stube cable of other connector or other connector respectively.
2, according to the described transmission cable of claim 1, it is characterized in that, be provided with heat-shrinkable T bush around the described connector.
3, according to the described transmission cable of claim 2, it is characterized in that, be provided with internal layer protection mould around the described heat-shrinkable T bush.
According to the described transmission cable of claim 3, it is characterized in that 4, described internal layer protection mould outside is surrounded by Copper Foil.
According to the described transmission cable of claim 4, it is characterized in that 5, described Copper Foil outside is provided with the outer layer protection mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03273020 CN2636457Y (en) | 2003-06-22 | 2003-06-22 | Transmission cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03273020 CN2636457Y (en) | 2003-06-22 | 2003-06-22 | Transmission cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2636457Y true CN2636457Y (en) | 2004-08-25 |
Family
ID=34301315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03273020 Expired - Fee Related CN2636457Y (en) | 2003-06-22 | 2003-06-22 | Transmission cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2636457Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105577415A (en) * | 2014-10-17 | 2016-05-11 | 中兴通讯股份有限公司 | Intelligent optical distribution network (ODN) device |
| CN105826784A (en) * | 2016-05-11 | 2016-08-03 | 安徽远征电缆科技有限公司 | Multi-signal integrated cable assembly |
-
2003
- 2003-06-22 CN CN 03273020 patent/CN2636457Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105577415A (en) * | 2014-10-17 | 2016-05-11 | 中兴通讯股份有限公司 | Intelligent optical distribution network (ODN) device |
| CN105577415B (en) * | 2014-10-17 | 2020-02-14 | 中兴通讯股份有限公司 | Intelligent optical distribution network equipment |
| CN105826784A (en) * | 2016-05-11 | 2016-08-03 | 安徽远征电缆科技有限公司 | Multi-signal integrated cable assembly |
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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: 20040825 Termination date: 20100622 |