CN101494369B - A cable connection union having one protection box - Google Patents
A cable connection union having one protection box Download PDFInfo
- Publication number
- CN101494369B CN101494369B CN2009100048796A CN200910004879A CN101494369B CN 101494369 B CN101494369 B CN 101494369B CN 2009100048796 A CN2009100048796 A CN 2009100048796A CN 200910004879 A CN200910004879 A CN 200910004879A CN 101494369 B CN101494369 B CN 101494369B
- Authority
- CN
- China
- Prior art keywords
- joining part
- connection joining
- outer tube
- guard box
- box
- 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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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/003—Filling materials, e.g. solid or fluid insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cable Accessories (AREA)
Abstract
The invention provides a power cable connection box having one protection box, comprising a connection joining part for connecting two ends of two cable wires; a protection box which covers the outside of the connection joining part and spaces a predetermined distance with the connection joining part; a waterproof material which fills between the connection joining part and the protection box. The protection box comprises an inner tube which covers the outside of the connection joining part and spaces a certain distance with the joining part, and an outer tube which attaches closely to the outer surface of the inner tube, and is provided with a grounding terminal arranged on one side of the outer tube for electrically connected with the inner tube.
Description
Technical field
The present invention relates to a kind of power cable junction box with single guard box.Especially, the present invention relates to a kind of power cable junction box, in this junction box, make protection tube and stuffing box (coffin box) form single guard box with single guard box.
Background technology
Power cable is installed as in order to carry superhigh pressure or high-tension electricity.One end of cable is connected in an end of another cable for the length that prolongs power cable.Guard box is used for protecting the connection joining part that connects two cable ends, and the outside of stuffing box covering protection case is damaged or infiltration to protect said guard box to avoid outside.
Fig. 1 is the sketch map that traditional power cable junction box is shown.As shown in Figure 1, traditional power cable junction box 10 comprises: be installed in the protection tube 30 of connection joining part 20 outsides, this connection joining part 20 is used for stube cable lead 11; And the stuffing box 40 that is installed in protection tube 30 outsides.Protection tube 30 is connected in earth terminal 50, make leakage current pass through this earth terminal 50 ground connection like this, and protection tube 30 is extracted out from stuffing box 40.All be filled with the waterproof structure material 60 such as waterproofing admixture or pitch in the space between connection joining part 20 and protection tube 30 and in the space between protection tube 30 and stuffing box 40, infiltrate in order to prevent moisture.
The stuffing box of being processed by reinforced plastics 40 can satisfy the requirement of mechanical strength and impermeability, and can be used to prevent that protection tube 30 from exempting from damage.Owing to not only be injected in the protection tube 30 in order to the waterproof structure material 60 that improves impermeability, but also be injected between stuffing box 40 and the protection tube 30.Therefore will excessively consume waterproof structure material 60.
In addition, junction box's entire length increases, and the operation that therefore needs the cost great amount of time that cable is installed.And junction box's overall dimensions increases.
Summary of the invention
The present invention is devoted to solve the problems referred to above that are associated with prior art.
The object of the present invention is to provide a kind of power cable junction box, make it possible to reduce the amount of the waterproof structure material that uses among this junction box, and can minimize this junction box's overall dimensions.Therefore, can easily carry out fitting operation, and therefore reduce the cost of fitting operation.
According to a scheme of the present invention, the power cable junction box with single guard box comprises: connection joining part, and it connects the end of two cable conductors; Guard box, it covers the outside of this connection joining part, and separates a predetermined distance with this connection joining part; And be filled in the waterproof structure material between this connection joining part and this guard box.This guard box comprises: interior pipe, and it covers the outside of this connection joining part, and separates a predetermined distance with this connection joining part; And outer tube, it closely attaches to the outer surface of pipe in this, and in a side of this outer tube earth terminal is installed; So that be electrically connected on pipe in this, wherein, pipe is made of metal in this; This outer tube is processed by fibre reinforced plastics (FRP), wherein, is formed with inlet on the side of this guard box; Waterproof structure material is injected in this in pipe via this inlet, and this inlet covers by cover plate, and said cover plate is sealed by the anticorrosion band.
This guard box can form through applying the outer surface of managing in this with fibre reinforced plastics (FRP) in advance.
Be formed with inlet on one side of this guard box, waterproof structure material is injected in this in pipe via this inlet, and the outside of this inlet can be covered by cover plate.
Preferably, pipe is made of metal in this, and this outer tube is processed by fibre reinforced plastics (FRP).
According to the present invention; Because the outer tube of being processed by fibre reinforced plastics (FRP) closely attaches on the surface of the interior pipe that is made of metal; So that do not form the gap between the two, therefore need not between interior pipe and outer tube, to inject waterproof structure material, pipe and outer tube are fulfiled its function originally in can making simultaneously.Junction box's overall dimensions is able to reduce significantly, thereby and can shorten time of attended operation, this makes it possible to realize at lower cost the power cable junction box of small size.
Description of drawings
Fig. 1 is the sketch map that traditional power cable junction box is shown.
Fig. 2 is the sketch map that illustrates according to the power cable junction box's of the embodiment of the invention structure.
Should be understood that accompanying drawing shows some simplification of a plurality of preferred features of explaining basic principle of the present invention, so accompanying drawing and nonessential drafting in proportion.The distinctive design feature of the present invention disclosed here comprises for example specific size, orientation, position and shape, with partly being decided by concrete intended use and environment for use.
Embodiment
To introduce a plurality of embodiment of the present invention in detail below, the example of these embodiment is shown in the drawings, and explain hereinafter.Combining exemplary embodiment that the while of the present invention is described, should be understood that this specification is not to be intended to the present invention is limited to these exemplary embodiments.On the contrary; This specification is intended to not only contain these exemplary embodiments; Also contain various selections, modification, equivalence setting and other embodiment, these selections, modification, equivalence are provided with and embodiment all should be included in the spirit and scope of the present invention that limit like the claims that attach.
Fig. 2 is the sketch map that illustrates according to the power cable junction box's of the embodiment of the invention structure.
As shown in Figure 2, comprise according to the power cable junction box 100 of the embodiment of the invention: connection joining part 110, it connects the end of two cable conductors 2; And guard box 120, it covers the outside of connection joining part 110, and separates a predetermined distance with this connection joining part 110.Between connection joining part 110 and guard box 120, be filled with waterproof structure material 130.Said waterproof structure material 130 is formed by waterproofing admixture or pitch.
Especially, guard box 120 is configured to the form of monolithic entity.Particularly, guard box 120 comprises interior pipe 121 that is made of metal and the outer tube of being processed by reinforced plastics 122, and interior pipe 121 closely attaches with outer tube 122 each other, so that do not form the gap between the two.That is, when interior pipe 121 covers the outside of connection joining part 110, and with this connection joining part 110 separate one predetermined apart from the time, the outer surface of pipe 121 in outer tube 122 closely attaches to.
Interior pipe 121 can be made of aluminum or copper, and plays the effect of traditional protection tube thus.Outer tube 122 can be processed by the reinforced plastics such as FRP, plays the effect of traditional stuffing box thus.Yet, because interior pipe 121 closely attaches with outer tube 122 each other, therefore need not between interior pipe 121 and outer tube 122, to fill waterproof structure material, simultaneously, pipe 121 is fulfiled its function originally with outer tube 122 in can making.In addition, power cable junction box 100 overall dimensions (radially reaching the size on the length direction) can be able to reduce significantly.
Side at the outer tube of being processed by reinforced plastics 122 is equipped with earth terminal 140, and this earth terminal 140 be electrically connected on be made of metal in the pipe 121.
In guard box 120, interior pipe 121 can be set to independent member with outer tube 122.In this case, manage on 121 in outer tube 122 can closely attach at the scene and be assembled to.Yet, also can use the guard box 120 that interior pipe 121 and outer tube 122 is formed as one and process through in advance.In this case, through on the outer surface of metal inner pipe 121, applying the reinforced plastics of suitable thickness, pipe 121 forms as one with outer tube 122 in making.
Guard box 120 can form following shape,, faces the shape of two ship shape casees that attach each other that is, and each ship shape box-shaped becomes the form that vertically cuts in half along cylinder.
Be formed with inlet 123 on one side of guard box 120, waterproof structure material 130 is managed in 121 in being injected into via this inlet 123, and inlet 123 is coated with cover plate 124.After injecting waterproof structure material 130, utilize the periphery of containment member 125 seal cover boards 124 such as the anticorrosion band.
Each longitudinal end of guard box 120 is by sleeve (socket) 150 and 151 sealings of anticorrosion band.
In power cable junction box 100 according to the embodiment of the invention; Because the outer tube of being processed by reinforced plastics 122 closely attaches on the interior pipe 121 that is formed by metal; So that do not form the gap between outer tube 122 and the interior pipe 121; Therefore need not between interior pipe 121 and outer tube 122, to fill waterproof structure material, pipe 121 is fulfiled its function originally with outer tube 122 in can making simultaneously.In addition, junction box's overall dimensions is able to reduce significantly.
Therefore, when using, need not to inject waterproof structure material, and can shorten the time of attended operation according to power cable junction box of the present invention.In addition, can realize the power cable junction box of small size with lower cost.
Above with reference to the preferred embodiments of the present invention the present invention has been carried out detailed explanation.Yet what those skilled in the art can understand is, under the situation that does not deviate from principle of the present invention and spirit, can make various changes to these embodiment, therefore, each item claim that scope Ying Youru of the present invention attaches and equivalence thereof be provided with limit.
Claims (2)
1. power cable junction box with single guard box comprises:
Connection joining part, it connects the end of two cable conductors;
Guard box, it covers the outside of this connection joining part, and separates a predetermined distance with this connection joining part; And
Waterproof structure material, it is filled between this connection joining part and this guard box,
Wherein, this guard box comprises: interior pipe, and it covers the outside of this connection joining part, and separates a predetermined distance with this connection joining part, and outer tube, and it closely attaches on outer surface of pipe in this,
Wherein, earth terminal is installed, manages to be electrically connected in this in a side of this outer tube,
Wherein, pipe is made of metal in this, and this outer tube is processed by fibre reinforced plastics (FRP),
Wherein, be formed with inlet on the side of this guard box, waterproof structure material is injected in this in pipe via this inlet, and this inlet covers by cover plate, and said cover plate is sealed by the anticorrosion band.
2. power cable junction box as claimed in claim 1, wherein, this guard box forms through making this outer tube coat the outer surface of managing in this in advance.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080007878A KR100892563B1 (en) | 2008-01-25 | 2008-01-25 | A cable connection union having one protection box |
| KR1020080007878 | 2008-01-25 | ||
| KR10-2008-0007878 | 2008-01-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101494369A CN101494369A (en) | 2009-07-29 |
| CN101494369B true CN101494369B (en) | 2012-01-25 |
Family
ID=40757520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100048796A Expired - Fee Related CN101494369B (en) | 2008-01-25 | 2009-01-21 | A cable connection union having one protection box |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100892563B1 (en) |
| CN (1) | CN101494369B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101029532B1 (en) | 2010-12-31 | 2011-04-18 | 오성산업(주) | The case connect structure to protect optical fiber cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2254739A (en) * | 1991-03-25 | 1992-10-14 | Raychem Ltd | Cable joint |
| US5502279A (en) * | 1993-12-23 | 1996-03-26 | Euromold | Joint for electrical cables |
| GB2295501A (en) * | 1994-11-28 | 1996-05-29 | Raychem Sa Nv | Cable joint |
| CN2593429Y (en) * | 2002-10-24 | 2003-12-17 | 上海三原电缆附件公司 | Ultrahigh voltage cablejoint sealing protection box |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2808375B2 (en) * | 1991-07-19 | 1998-10-08 | 三菱電線工業株式会社 | High-pressure fireproof cable connection |
| JPH08126183A (en) * | 1992-10-16 | 1996-05-17 | Furukawa Electric Co Ltd:The | Running water-proof plug-in connection |
| KR101135143B1 (en) | 2004-03-01 | 2012-04-16 | 후루카와 덴키 고교 가부시키가이샤 | Cable connecting structure |
-
2008
- 2008-01-25 KR KR1020080007878A patent/KR100892563B1/en not_active IP Right Cessation
-
2009
- 2009-01-21 CN CN2009100048796A patent/CN101494369B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2254739A (en) * | 1991-03-25 | 1992-10-14 | Raychem Ltd | Cable joint |
| US5502279A (en) * | 1993-12-23 | 1996-03-26 | Euromold | Joint for electrical cables |
| GB2295501A (en) * | 1994-11-28 | 1996-05-29 | Raychem Sa Nv | Cable joint |
| CN2593429Y (en) * | 2002-10-24 | 2003-12-17 | 上海三原电缆附件公司 | Ultrahigh voltage cablejoint sealing protection box |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100892563B1 (en) | 2009-04-09 |
| CN101494369A (en) | 2009-07-29 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20150121 |
|
| EXPY | Termination of patent right or utility model |