CN206148150U - Shielded wire of multiway ground connection - Google Patents
Shielded wire of multiway ground connection Download PDFInfo
- Publication number
- CN206148150U CN206148150U CN201621118988.2U CN201621118988U CN206148150U CN 206148150 U CN206148150 U CN 206148150U CN 201621118988 U CN201621118988 U CN 201621118988U CN 206148150 U CN206148150 U CN 206148150U
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- ground connection
- multiway
- grounded
- cable
- shielding line
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Abstract
The utility model discloses a shielded wire of multiway ground connection, including a cable body and a N ground connection mechanism, wherein the cable body is cylindric, its ab intra and include conductive layer, insulating sheath and shielding net outward in proper order, the shielding is equipped with a M exposed portion on the net, each ground connection mechanism all includes the earth connection body and earthing terminal, wherein the earth connection body with the exposed portion of shielding net connects, the earthing terminal with the earth connection body coupling, the earthing terminal includes at least one ground connection foot, this ground connection foot ground connection, N >= 3, M >= N wherein. The utility model discloses a mode of cable multiple ends ground connection reduces cable shield layer's circulation. The ground point can carry out nimble adjustment according to the in service behavior of reality in addition. Its cable shield layer's that flows through that can effectively prevent to produce because of the high -intensity magnetic field electric current is too big to prevent to burn out ground terminal, and guarantee the operation of holistic safety and stability.
Description
Technical field
This utility model is related to field of cable technology, particularly relates to a kind of shielding line of multiway ground connection.
Background technology
In recent years, with the fast development of power industry technology of transmission of electricity, the use of shielding line is more and more extensive.Shielding line is
Transmission line holding wire wrapped up using netted braided wire, generally weaves copper mesh or copper pool (aluminum), and screen layer needs
Ground connection, external interference signal can be imported the earth by the layer, it is to avoid interference signal enters inner conductor interference and reduces transmission simultaneously
The loss of signal.At present, in industry mainly using screen layer single-end earthed with two sides earth two ways.
But, in the case where screen layer only has single-end earthed, the metal screen layer at ungrounded end over the ground between have sensing
Voltage is present, and this earthing mode is adapted to the shorter circuit of length, and the induced voltage corresponding to cable length is no more than safety
Voltage.The presence of electrostatic induction voltage will affect stablizing for circuit signal, there may come a time when to form antenna effect.
In the case of screen layer two sides earth, metal screen layer is disturbed magnetic flux effect and passes through shading ring stream is produced, will
Very big potential circulation is formed, circulation can be produced to signal and offset attenuating.Two-terminal-grounding, as two earth terminals may be deposited
In potential difference, interference can be produced on the contrary.And due to two-terminal-grounding so as to screen layer forms a ring with earth mat.Due to earth mat
Grid gap is larger, and up to 10 meters or so, the ring that earth mat is formed with cable shield is larger, specifies according to existing industry, cable shield
Layer two-terminal-grounding, the then electric current for flowing through cable shield are larger, and its measured value is close to 100A, and so big electric current will can be grounded
Terminal burns；In addition, after ground terminal burns, causing cable single-end earthed, now high voltage will be produced in the cable other end,
Voltage magnitude will affect overall safe and stable operation up to 10.47V.
Therefore, utility model people of the present utility model needs a kind of new technique of design badly to improve its problem.
Utility model content
This utility model aims to provide a kind of shielding line of multiway ground connection, and which can avoid the generation of antenna effect, while
The circulation of cable shield can also be reduced, is prevented because the electric current for flowing through cable shield of high-intensity magnetic field generation is excessive, so as to keep away
It is unburned to ruin ground terminal, and ensure overall safe and stable operation.
To solve above-mentioned technical problem, the technical solution of the utility model is：
A kind of shielding line of multiway ground connection, including：One cable main body and N number of earthing mechanism, wherein the cable main body is
Cylindric, its from-inner-to-outer includes conductor layer, insulating sheath and gauze screen successively, and the gauze screen is provided with M exposed portion, institute
State exposed portion to be connected or be directly grounded with the earthing mechanism；Each earthing mechanism includes ground connection wire body and ground connection
End, wherein the earth lead body is connected with the exposed portion of the gauze screen, the earth terminal is connected with the ground connection wire body, described
Earth terminal includes at least one grounding leg, and the grounding leg is grounded；Wherein N >=3, M >=N.
Preferably, the cable main body also includes an external sheath layer, and the external sheath layer is arranged on the outside of the gauze screen,
The through hole that multiple exposed portions with the gauze screen match, the size and number of the through hole and the ground connection machine are reserved with thereon
Structure matches.
Preferably, length of the thickness of the external sheath layer less than or equal to the ground connection wire body.
Preferably, the earth terminal includes three grounding legs, and three grounding legs are evenly distributed on the earth lead in claw type
The lower end of body.
Preferably, the earth terminal and the earth lead body by integral forming.
Preferably, the earthing mechanism is prepared from using galvanized steel bar.
Preferably, the earthing mechanism is prepared from using nano-sized carbon.
Using above-mentioned technical proposal, this utility model at least includes following beneficial effect：
The shielding line of multiway ground connection described in the utility model, by the way of cable multiterminal ground connection, reduces cable shield
The circulation of layer.Earth point can be flexibly adjusted according to actual service condition in addition.It is which can prevent from producing because of high-intensity magnetic field
The raw electric current for flowing through cable shield is excessive, so as to prevent burning ground terminal, and ensures overall safe and stable operation.
Description of the drawings
Fig. 1 is the schematic diagram of the shielding line of multiway ground connection described in the utility model；
Fig. 2 is the top view of earth terminal described in the utility model；
Fig. 3 is the profile of cable main body described in the utility model.
Wherein：1. cable main body, 11. conductor layers, 12. insulating sheaths, 13. gauze screens, 131. exposed portions, 14. oversheaths
Layer, 2. earthing mechanism, 21. grounding legs.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
As shown in Figure 1 to Figure 3, to meet a kind of shielding line of multiway ground connection of the present utility model, including：One cable main body
1 and N number of earthing mechanism 2, wherein the cable main body 1 is cylindric, its from-inner-to-outer includes conductor layer 11, insulating sheath successively
12 and gauze screen 13, the gauze screen 13 is provided with M exposed portion 131, and the exposed portion 131 is connected with the earthing mechanism 2
Or be directly grounded；Each earthing mechanism 2 includes ground connection wire body and earth terminal, wherein the earth lead body and the screen
The exposed portion 131 for covering net 13 connects, and the earth terminal is connected with the ground connection wire body, and the earth terminal includes at least one ground connection
Foot 21, the grounding leg 21 are grounded；Wherein N >=3, M >=N.Both can be directly grounded with exposed portion 131, it is also possible to by the ground connection
Foot 21 is grounded, more flexibly and conveniently.
Preferably, the cable main body 1 also includes an external sheath layer 14, and the external sheath layer 14 is arranged on the gauze screen
On the outside of 13, the through hole that multiple exposed portions 131 with the gauze screen 13 match, the size and number of the through hole are reserved with thereon
Match with the earthing mechanism 2.
Preferably, length of the thickness of the external sheath layer 14 less than or equal to the ground connection wire body.
Preferably, the earth terminal includes three grounding legs 21, and three grounding legs 21 are evenly distributed on described connecing in claw type
The lower end of ground wire body.The function of ground connection not only can so be played, moreover it is possible to good supported grounding wire body and cable main body 1, from
And shielding line can be made to adapt to various different working environments, strong adaptability.
Preferably, the spacing described in each two between earthing mechanism 2 is equal or unequal, and which can be made according to actual
It is adjusted correspondingly with demand, the present embodiment is not construed as limiting to this.
Preferably, the earth terminal and the earth lead body by integral forming.
Preferably, a sheath protector, Jing sheath protectors ground connection are also arranged with each grounding leg 21.Sheath is protected
The setting of shield device preferably protective grounding foot 21 can not be affected by, and ensure that the effect of ground connection to a certain extent
Really.
In a preferred embodiment, the earthing mechanism 2 is prepared from using galvanized steel bar.
In another preferred embodiment, the earthing mechanism 2 is prepared from using nano-sized carbon.Compared to traditional metal material
Matter, nano-sized carbon electric conductivity are very strong, and resistivity is close to common metal, and nano-sized carbon is used as Jie between metallic ground body and soil
Matter, does not interfere with dash current diffusion.And nano-sized carbon has superpower heat-resisting quantity, when the impact for running into more powerful electric current
When, phenomenon will not be fallen off.With good antiseptic property when nano-sized carbon is grounded in addition.For complicated ground connection environment
Speech, nano-sized carbon earthing mechanism 2 can greatly improve coating acid resistance and salt tolerance, be not likely to produce chemical reaction with other materials.
Therefore, nano-sized carbon grounding anti-corrosion performance is more superior.
The present embodiment is due to the drawbacks of by the way of cable multiterminal ground connection, which will not produce single-end earthed.And its multiterminal
The ring that cable shield is formed with earth mat can be divided into multiple little rings, reduce cable shield and earth mat by the mode of ground connection
The area of the ring of formation, further reduces the circulation of cable shield.Earth point can enter according to actual service condition in addition
Row is flexible to be adjusted.It is which can prevent from, because the electric current for flowing through cable shield of high-intensity magnetic field generation is excessive, connecing so as to prevent from burning
Ground terminal, and ensure overall safe and stable operation.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use that this practicality is new
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
1. the shielding line that a kind of multiway is grounded, it is characterised in that include：One cable main body and N number of earthing mechanism, wherein the line
Cable body is cylindric, and its from-inner-to-outer includes conductor layer, insulating sheath and gauze screen successively, and the gauze screen is provided with M
Exposed portion, the exposed portion are connected or are directly grounded with the earthing mechanism；Each earthing mechanism includes earth lead
Body and earth terminal, wherein the earth lead body is connected with the exposed portion of the gauze screen, the earth terminal and the ground connection wire body
Connection, the earth terminal include at least one grounding leg, and the grounding leg is grounded；Wherein N >=3, M >=N.
2. the shielding line that multiway as claimed in claim 1 is grounded, it is characterised in that：The cable main body also includes an oversheath
Layer, the external sheath layer are arranged on the outside of the gauze screen, are reserved with multiple exposed portions with the gauze screen thereon and match
Through hole, the size and number of the through hole matched with the earthing mechanism.
3. the shielding line that multiway as claimed in claim 2 is grounded, it is characterised in that：The thickness of the external sheath layer be less than or
Equal to the length of the ground connection wire body.
4. the shielding line that multiway as claimed in claim 1 is grounded, it is characterised in that：The earth terminal includes three grounding legs,
Three grounding legs are evenly distributed on the lower end of the ground connection wire body in claw type.
5. the shielding line that multiway as claimed in claim 1 is grounded, it is characterised in that：The earth terminal and the ground connection wire body one
It is body formed.
6. the shielding line that multiway as claimed in claim 1 is grounded, it is characterised in that：The earthing mechanism adopts galvanized steel bar system
It is standby to form.
7. the shielding line that multiway as claimed in claim 1 is grounded, it is characterised in that：The earthing mechanism is prepared using nano-sized carbon
Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118988.2U CN206148150U (en) | 2016-10-12 | 2016-10-12 | Shielded wire of multiway ground connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118988.2U CN206148150U (en) | 2016-10-12 | 2016-10-12 | Shielded wire of multiway ground connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206148150U true CN206148150U (en) | 2017-05-03 |
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ID=58621618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621118988.2U Active CN206148150U (en) | 2016-10-12 | 2016-10-12 | Shielded wire of multiway ground connection |
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| CN (1) | CN206148150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107432983A (en) * | 2017-07-06 | 2017-12-05 | 合肥震岳工业设备科技有限公司 | Workbench anti-static system |
-
2016
- 2016-10-12 CN CN201621118988.2U patent/CN206148150U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107432983A (en) * | 2017-07-06 | 2017-12-05 | 合肥震岳工业设备科技有限公司 | Workbench anti-static system |
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