CN106992038B - Solid insulated busbar - Google Patents
Solid insulated busbar Download PDFInfo
- Publication number
- CN106992038B CN106992038B CN201710229130.6A CN201710229130A CN106992038B CN 106992038 B CN106992038 B CN 106992038B CN 201710229130 A CN201710229130 A CN 201710229130A CN 106992038 B CN106992038 B CN 106992038B
- Authority
- CN
- China
- Prior art keywords
- power transmission
- transmission conductor
- section
- resin layer
- insulating resin
- 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.)
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- 239000007787 solid Substances 0.000 title claims abstract description 31
- 239000004020 conductor Substances 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 239000011347 resin Substances 0.000 claims abstract description 46
- 229920005989 resin Polymers 0.000 claims abstract description 46
- 230000005611 electricity Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 17
- 238000009413 insulation Methods 0.000 description 13
- 210000000867 larynx Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
-
- 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
- H01B7/02—Disposition of insulation
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates to a kind of solid insulated busbars, and including power transmission conductor and the insulating resin layer being solidificated on power transmission conductor, the both ends in the axial direction of the power transmission conductor are respectively provided with the expanding structure for realizing axial limiting to the insulating resin layer in the axial direction.On solid insulated busbar provided by the present invention, the expanding structure being equipped with using the both ends of power transmission conductor is cooperated to realize in power transmission conductor axial direction and limit to the insulating resin layer being solidificated on power transmission conductor, the secure engagement power for effectively improving insulating resin layer and power transmission conductor, improves the Forming Quality of solid insulated busbar.
Description
Technical field
The present invention relates to a kind of solid insulated busbars.
Background technique
Currently, the bus and gas isolated pipe bus of common Cubicle Gas-Insulated Switchgear, structure is such as
Authorization Notice No. is the pipe of Cubicle Gas-Insulated Switchgear provided in the Chinese utility model of CN205543717U
Road bus, pipeline bus include outer tube, are equipped with conductor in outer tube, and ring flange is respectively set in the both ends of outer tube, to be connected by flange
The mode connect realizes the connection between pipeline bus, and contact is respectively set at the both ends of conductor, with realize adjacent channel bus and
The point that arrives of pipeline bus and corresponding product ontology connects.But this pipeline bus needs to be filled with SF into pipeline6, mixed gas etc.
For greenhouse gases as insulating gas, also having extremely individual engineerings to use high pressure nitrogen, pressure-air is insulating gas.
There are some common problems for this pipeline bus for being filled with insulating gas:
1. the design of cylinder must satisfy the requirement of low-voltage power container standard, and can seldom use due to voltage class height
Shaping pipe replaces, it is necessary to using the special cylinder welded or cast.The main reason is that gas-insulated metal-enclosed structure
Diameter of section, voltage class raising can become increasingly thicker therewith, be reduced with guaranteeing dielectric level not.And it is filled with for this
The low-voltage power container of insulating gas, design level and manufacturing process also have higher technical threshold.
2. the bus and gas isolated pipe bus of Cubicle Gas-Insulated Switchgear, are being filled with insulating gas
When, the inflationtime of consumption is extremely long, and has rigors to assembly environment, needs that special docking is arranged at the construction field (site)
Room is assembled, because the gas chamber in gas-insulated metal-enclosed structure has high requirement to cleanliness.
General assembly and inflation process are: the Butt Assembling room that construction site is temporarily built outdoors, to guarantee rendezvous method
Blue cleanliness, after completing gas chamber docking.First gas chamber is evacuated, is re-filled with the SF of authorized pressure6Equal insulating gas.Due to
In power station construction site, the gas chamber of Cubicle Gas-Insulated Switchgear and gas isolated pipe bus is more, and requires
More Butt Assembling rooms are built, in order to save the construction time, worker also needs to prepare more set chargers, and needs often to patrol
Depending on air gauge, to guarantee that inflatable safety, labor intensity are very big.Even if assembly bus is taken out very in this way, building Butt Assembling room
Time and the normal phenomenon that empty, inflation takes several days.
3. in order to improve volumetric efficiency, manufactory can be in the bus and gas-insulated of Cubicle Gas-Insulated Switchgear
Multiple gas-charging connections are designed on pipeline bus, but gas-charging connection is more, there is also leakage problems.
4. taking up a large area, due to the bus of Cubicle Gas-Insulated Switchgear and pair of gas isolated pipe bus
Acting flange diameter and barrel diameter gap are simultaneously little, can not be by by three-phase bus so the designer of design power station layout
Flange interface dislocation arrangement, to realize the intention for reducing occupied area.
To overcome the problems, such as that above-mentioned pipeline bus exists, currently, developing a kind of solid insulated busbar, such as Authorization Notice No.
For the totally-enclosed all insulation resin forming bus disclosed in the Chinese utility model patent of CN202454325U comprising be located at
Resin insulating barrier is arranged in the metallic conductor at center, metallic conductor outside.Replace the sulfur hexafluoride etc. of the overwhelming majority using insulating resin
Greenhouse insulating gas can reduce the gas chamber for needing to inflate under the premise of guaranteeing bus insulating property, reduce inflationtime, most
Limits save the construction time.But this solid insulated busbar production when there are also problems, i.e., insulating resin is not easy to
It casts on smooth power transmission conductor, is easy to appear deflection after the completion of casting, once there are the feelings of uneven thickness in certain places
When condition, material is not only wasted, also affects the integral insulation performance of bus, not can guarantee the molding matter of solid insulated busbar
Amount.
Summary of the invention
The purpose of the present invention is to provide a kind of solid insulated busbars, are not easy admittedly with solving insulating resin in the prior art
Change causes insulating resin layer to engage bad technical problem with power transmission conductor in smooth power transmission conductor.
To achieve the above object, the technical solution of solid insulated busbar provided by the present invention is: a kind of solid insulation is female
Line, including power transmission conductor and the insulating resin layer being solidificated on power transmission conductor, the both ends in the axial direction of the power transmission conductor are distinguished
Equipped with for the expanding structure of axial limiting to be realized to the insulating resin layer in the axial direction.
The expanding structure is the conical section along the direction radial dimension increase towards power transmission conductor axial end portion.
The power transmission conductor includes interior isometrical section between the conical section at both ends.
The insulating resin layer include flared section corresponding with the conical section of the power transmission conductor and with the power transmission conductor
Interior isometrical section corresponding outer isometrical section.
The thickness of the flared section is not less than outer isometrical section of the thickness.
The conical section is conical structure.
It is set with outer barrel outside the insulating resin layer, outer barrel includes the connecting cylinder corresponding with the flared section at both ends
Body and centre with the outer isometrical section of corresponding protection cylinder.
The protection cylinder includes the protection buffer layer of inside and the protection sheath in outside.
The beneficial effects of the present invention are: being set on solid insulated busbar provided by the present invention using the both ends of power transmission conductor
The expanding structure having cooperates to realize in power transmission conductor axial direction and limit to the insulating resin layer being solidificated on power transmission conductor,
The secure engagement power for effectively improving insulating resin layer and power transmission conductor, improves the Forming Quality of solid insulated busbar.
Further, expanding structure is conical section, can realize and set insulation on the basis of facilitating profiled insulation resin layer
The axial limiting of rouge layer.
Further, outer barrel is set with outside insulating resin layer, outer barrel includes the connector drum at both ends and preventing for centre
Casing body is provided by protection cylinder to the effective protection of insulating resin layer, prevents from occurring colliding with during transportation, asking of scratching
Topic.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment 1 of solid insulated busbar provided by the present invention；
Fig. 2 is cross-section diagram at A-A in Fig. 1；
Fig. 3 is the structural schematic diagram of the embodiment 2 of solid insulated busbar provided by the present invention；
Fig. 4 is cross-section diagram at B-B in Fig. 3；
Fig. 5 is the structural schematic diagram of the embodiment 3 of solid insulated busbar provided by the present invention；
Fig. 6 is cross-section diagram at C-C in Fig. 5.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Embodiment 1:
As shown in Figure 1 and Figure 2, the solid insulated busbar in the embodiment includes power transmission conductor 2 and the insulation in outside at center
Resin layer 4 is solidificated on smooth power transmission conductor 2 to solve the problems, such as that insulating resin layer 4 is not easy casting, in the present embodiment,
Both ends in the axial direction of power transmission conductor 2 are respectively equipped with expanding structure 21, and expanding structure 21 herein is to lead along towards transmission of electricity
The conical section that the direction radial dimension of body axial end portion is gradually increased, it should be noted that herein towards power transmission conductor axial direction
The direction of end refers to that the direction that respective end is respectively facing for every one end so may make both ends to distinguish
The expanding structure being arranged is upwardly formed limit in 2 axis of power transmission conductor, to the insulating resin layer 4 for being solidificated in 2 outside of power transmission conductor
Clamping limit is carried out, the secure engagement power of insulating resin layer and power transmission conductor can be effectively improved.
In the present embodiment, to guarantee insulation effect, the thickness of the corresponding axial ends of insulating resin layer cannot be thinner than centre
The thickness of position corresponds to the flared section 41 that the insulating resin layer at the expanding structure 21 of power transmission conductor is formed.
In the present embodiment, power transmission conductor include the expanding structure at both ends and between two expanding structures in it is isometrical
Section, correspondingly, insulating resin layer then includes flared section 41 corresponding with the expanding structure of power transmission conductor and corresponding with interior isometrical section
Outer isometrical section 42, for insulating resin layer, the thickness of flared section 41 is greater than outer isometrical section 42 of thickness,
In the case where guaranteeing insulation effect, the bonding strength of solid insulated busbar is improved.Certainly, in other embodiments, exhausted to guarantee
Edge effect, as long as the thickness of flared section is not less than outer isometrical section of thickness.
For insulating resin layer, it is contemplated that technique and corresponding insulation performance, insulating resin layer 4 is in power transmission conductor axis
Flared section 41 including both ends and outer isometrical section 42 between two flared sections 41 upwards.Due to the insulation of insulating resin layer 4
Better performances, outer isometrical section 42 of radial dimension is programmable smaller, and then can the opposite radial ruler for reducing entire isolated bus
It is very little.
In fact, to realize being fixedly connected for adjacent solid insulation bus and solid insulated busbar and corresponding port, exhausted
The both ends of edge resin layer 4 are respectively equipped with connector drum 1, the flaring structure of corresponding insulating resin layer, and connector drum 1 is corresponding end
Portion's contracting larynx cylinder, both ends contracting larynx cylinder are respectively provided with the contracting being gradually reduced towards the direction size on the inside of both ends contracting larynx cylinder
Larynx section, so that end contracting larynx cylinder is corresponding with the expanding structure of insulating resin layer.
Solid insulated busbar provided by the present embodiment, the expanding structure in the both ends being equipped with by power transmission conductor are realized to insulation
The clamping of resin layer positions, and guarantees the secure engagement power of insulating resin layer and insulated electric conductor, guarantees entire solid insulated busbar
Forming Quality.
It should be noted that can guarantee the strong of bus completely due to the self-strength of insulating resin layer and power transmission conductor
Degree, so, it can be not provided with protective cylinder between both ends contracting larynx cylinder, production work can be reduced to the maximum extent in this way
When, manufacturing process difficulty can also be reduced.
Embodiment 2:
As shown in Figure 3 and Figure 4, the something in common of the structure with embodiment 1 of the solid insulated busbar in the present embodiment is:
The power transmission conductor 2 and insulating resin layer 4 once arranged from inside to outside, essentially consist in the difference of embodiment 1: setting in insulation
Outer isometrical section 42 of rouge layer 4 is externally provided with protection cylinder 52, the protection cylinder 52 and the both ends contracting larynx cylinder as connector drum 51
Body is joined together to form the outer barrel being sleeved on outside insulating resin layer, and intermediate protection cylinder 52 is sleeved on insulating resin layer
Outer isometrical section 42 on, since outer isometrical section of size is relatively small, so, protection cylinder 52 can directly adopt pipe profile, no
It needs specially to weld large-sized cylinder.
Embodiment 3:
As shown in Figure 5 and Figure 6, the something in common of the structure with embodiment 1 of the solid insulated busbar in the present embodiment is:
The power transmission conductor 2 and insulating resin layer 4 once arranged from inside to outside, essentially consist in the difference of embodiment 2: herein anti-
Casing body includes the protection buffer layer 7 of inside and the protection sheath 8 in outside, and protection buffer layer 7 is wrapped in the outer of insulating resin layer 4
Isometrical section, in fact, insulating resin layer 4 and 2 self-strength of power transmission conductor are enough to ensure that bus intensity, this protection buffer layer
With protection sheath mainly for preventing in transport, the problem of scratching of colliding with occur in installation process.
In above-mentioned 3 embodiments, the expanding structure at power transmission conductor both ends is conical section.In other embodiments, it transmits electricity
The expanding structure at conductor both ends can also be stairstepping section.
Solid insulated busbar provided by above-mentioned 3 embodiments when in use, can by end contracting larynx cylinder with it is corresponding
Bus or other structures flanged joint, to realize corresponding bus connection.
Claims (5)
1. a kind of solid insulated busbar, including power transmission conductor and the insulating resin layer being solidificated on power transmission conductor, it is characterised in that:
Both ends in the axial direction of the power transmission conductor, which are respectively provided with, realizes axial limiting to the insulating resin layer in the axial direction
Expanding structure；The expanding structure is the conical section along the direction radial dimension increase towards power transmission conductor axial end portion；Institute
Stating power transmission conductor includes interior isometrical section between the conical section at both ends；The insulating resin layer includes and the transmission of electricity
The corresponding flared section of the conical section of conductor and outer isometrical section corresponding with isometrical section in the power transmission conductor.
2. solid insulated busbar according to claim 1, it is characterised in that: the thickness of the flared section is not less than institute
State outer isometrical section of thickness.
3. solid insulated busbar according to claim 1 or 2, it is characterised in that: the conical section is conical structure.
4. solid insulated busbar according to claim 1 or 2, it is characterised in that: be set with outside the insulating resin layer outer
Cylinder, outer barrel include the corresponding with described outer isometrical section anti-of the corresponding connector drum of both ends the and described flared section and centre
Casing body.
5. solid insulated busbar according to claim 4, it is characterised in that: the protection cylinder includes that the protection of inside is slow
Rush the protection sheath in layer and outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229130.6A CN106992038B (en) | 2017-04-10 | 2017-04-10 | Solid insulated busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229130.6A CN106992038B (en) | 2017-04-10 | 2017-04-10 | Solid insulated busbar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106992038A CN106992038A (en) | 2017-07-28 |
| CN106992038B true CN106992038B (en) | 2018-12-14 |
Family
ID=59416155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710229130.6A Active CN106992038B (en) | 2017-04-10 | 2017-04-10 | Solid insulated busbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106992038B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5761108B2 (en) * | 2012-04-06 | 2015-08-12 | 日立金属株式会社 | Solid insulation bus termination connection |
| CN204066780U (en) * | 2014-09-24 | 2014-12-31 | 深圳市惠程电气股份有限公司 | A kind of shield type transfer bus of solid insulation cabinet |
| CN204651068U (en) * | 2015-05-14 | 2015-09-16 | 江苏沃能电气科技有限公司 | A kind of insulating tube type busbar production method conductors dedicated |
| CN105390188A (en) * | 2015-10-30 | 2016-03-09 | 国网山东滨州市沾化区供电公司 | Insulated tubular busbar |
| CN105469877A (en) * | 2015-12-18 | 2016-04-06 | 苏州翠南电子科技有限公司 | Novel composite silicone rubber solid insulation bus |
| CN105976903A (en) * | 2016-04-28 | 2016-09-28 | 周龙刚 | Rubber and plastic composite insulating pipe bus and manufacturing method thereof |
-
2017
- 2017-04-10 CN CN201710229130.6A patent/CN106992038B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106992038A (en) | 2017-07-28 |
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