CN106992038A - Solid insulated busbar - Google Patents
Solid insulated busbar Download PDFInfo
- Publication number
- CN106992038A CN106992038A CN201710229130.6A CN201710229130A CN106992038A CN 106992038 A CN106992038 A CN 106992038A CN 201710229130 A CN201710229130 A CN 201710229130A CN 106992038 A CN106992038 A CN 106992038A
- Authority
- CN
- China
- Prior art keywords
- power transmission
- transmission conductor
- solid insulated
- insulating resin
- section
- 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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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 busbar, including power transmission conductor and the insulating resin layer being solidificated on power transmission conductor, the two 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 provided with using the two ends of power transmission conductor cooperates spacing to the insulating resin layer being solidificated on power transmission conductor to be realized on power transmission conductor axial direction, the secure engagement power of insulating resin layer and power transmission conductor is effectively improved, the Forming Quality of solid insulated busbar is improved.
Description
Technical field
The present invention relates to a kind of solid insulated busbar.
Background technology
At present, the bus of common Cubicle Gas-Insulated Switchgear and gas isolated pipe bus, its structure is such as
Authorization Notice No. is the pipe of the Cubicle Gas-Insulated Switchgear provided in CN205543717U Chinese utility model
Road bus, pipeline bus includes being provided with conductor in outer tube, outer tube, and the two ends of outer tube set ring flange respectively, to be connected by flange
The mode connect realizes the connection between pipeline bus, and contact is set respectively at the two ends of conductor, with realize adjacent channel bus and
Pipeline bus is connected with corresponding product body to point.But this pipeline bus needs to be filled with SF into pipeline6, mixed gas etc.
Greenhouse gases are as insulating gas, and it is insulating gas using high pressure nitrogen, pressure-air also to have extremely indivedual engineerings.
There are some common problems in this pipeline bus for being filled with insulating gas：
1. because voltage class is high, the design of cylinder must is fulfilled for the requirement of low-voltage power container standard, and seldom can be using shaping
Tubing is replaced, it is necessary to using the special cylinder for welding or casting.Its main cause is, gas-insulated metal-enclosed structure is cut
Face diameter, voltage class rise can become increasingly thicker, to ensure that dielectric level is not reduced therewith.And it is filled with insulation for this
The low-voltage power container of gas, its design level and manufacturing process also have higher technical threshold.
2. the bus of Cubicle Gas-Insulated Switchgear and gas isolated pipe bus, are being filled with insulating properties gas
When, the inflationtime that it is consumed is extremely long, and has rigors to assembly environment, it is necessary to set special docking at the construction field (site)
Room is assembled, because the air chamber in gas-insulated metal-enclosed structure has high requirement to cleanliness factor.
Typically assemble and inflation process is：The Butt Assembling room that job site is built temporarily out of doors, to ensure rendezvous method
Blue cleanliness factor, is completed after air chamber docking.First air chamber is evacuated, the SF of authorized pressure is re-filled with6Deng insulating gas.Due to
In power station job site, the air chamber of Cubicle Gas-Insulated Switchgear and gas isolated pipe bus is more, and is required for
Many Butt Assembling rooms are built, in order to save the engineering time, workman also needs to prepare many set chargers, and needs often to patrol
Depending on air gauge, to ensure inflatable safety, its labor intensity is very big.Even if so, building Butt Assembling room, assemble bus, take out true
The time of several days is taken in empty, inflation, is also normal phenomenon.
3. in order to improve charging efficiency, manufactory can Cubicle Gas-Insulated Switchgear bus and gas-insulated
Multiple gas-charging connections are designed on pipeline bus, but gas-charging connection is more, there is also leakage problem.
4. floor space is big, due to the bus and pair of gas isolated pipe bus of Cubicle Gas-Insulated Switchgear
Acting flange diameter and barrel diameter gap are simultaneously little, so the designer of design power station layout, it is impossible to by by three-phase bus
Flange interface dislocation arrangement, to realize the intention for reducing floor space.
To overcome the problem of above-mentioned pipeline bus is present, at present, a kind of solid insulated busbar, such as Authorization Notice No. are developed
For the totally-enclosed all insulation resin forming bus disclosed in CN202454325U Chinese utility model patent, it includes being located at
Resin insulating barrier is set outside the metallic conductor at center, metallic conductor.Replace sulfur hexafluoride of the overwhelming majority etc. using insulating resin
Greenhouse insulating gas, on the premise of bus insulating property is ensured, can reduce the air chamber for needing to inflate, reduce inflationtime, most
Limits save the engineering time.But, this solid insulated busbar is not easy to when making there is also problem, i.e. insulating resin
Cast on smooth power transmission conductor, easily deflection occur after the completion of casting, once there are the feelings of uneven thickness in some places
During condition, not only waste of materials, also affects the integral insulation performance of bus, it is impossible to ensure the shaping matter of solid insulated busbar
Amount.
The content of the invention
It is an object of the invention to provide a kind of solid insulated busbar, it is 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 scheme of solid insulated busbar provided by the present invention is：A kind of solid insulation is female
Two ends difference in line, including power transmission conductor and the insulating resin layer being solidificated on power transmission conductor, the axial direction of the power transmission conductor
Provided with the expanding structure for realizing axial limiting 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 two 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 described outer isometrical section of thickness.
The conical section is conical structure.
Outer cylinder body is set with outside the insulating resin layer, outer cylinder body includes the connecting cylinder corresponding with the flared section at two ends
Body and centre with the outer isometrical section of corresponding protection cylinder.
The protection cylinder includes the protection cushion of inner side and the protection sheath in outside.
The beneficial effects of the invention are as follows：On solid insulated busbar provided by the present invention, set using the two ends of power transmission conductor
The expanding structure mutual cooperation having is spacing to the insulating resin layer being solidificated on power transmission conductor to be realized on power transmission conductor axial direction,
The secure engagement power of insulating resin layer and power transmission conductor is effectively improved, the Forming Quality of solid insulated busbar is improved.
Further, expanding structure is conical section, can be realized and insulation is set on the basis of profiled insulation resin bed is facilitated
The axial limiting of lipid layer.
Further, outer cylinder body is set with outside insulating resin layer, outer cylinder body includes the connector drum at two ends and preventing for centre
Casing body, effective protection to insulating resin layer is provided by protection cylinder, prevents from occurring in transportation colliding with, asking of scratching
Topic.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment 1 of solid insulated busbar provided by the present invention；
Fig. 2 is sectional drawing at A-A in Fig. 1；
Fig. 3 is the structural representation of the embodiment 2 of solid insulated busbar provided by the present invention；
Fig. 4 is sectional drawing at B-B in Fig. 3；
Fig. 5 is the structural representation of the embodiment 3 of solid insulated busbar provided by the present invention；
Fig. 6 is sectional drawing at C-C in Fig. 5.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figure 1 and Figure 2, the solid insulated busbar in the embodiment includes the power transmission conductor 2 at center and the insulating resin in outside
Layer 4, is not easy in the problem of being solidificated on smooth power transmission conductor 2 of casting, the present embodiment to solve insulating resin layer 4, defeated
Two ends in the axial direction of electric conductor 2 are respectively equipped with expanding structure 21, and expanding structure 21 herein is along towards power transmission conductor axle
The conical section that gradually increases to the direction radial dimension of end, it is necessary to explanation, herein towards power transmission conductor axial end portion
Direction refer to for per for one end, being respectively facing the direction of respective end, so, may be such that two ends are set respectively
Expanding structure be upwardly formed in the axle of power transmission conductor 2 it is spacing, to be carried out to the insulating resin layer 4 for being solidificated in the outside of power transmission conductor 2
Clamp is spacing, can effectively improve the secure engagement power of insulating resin layer and power transmission conductor.
In the present embodiment, to ensure insulation effect, the thickness at the corresponding axial two ends of insulating resin layer can not be thinner than centre
The flared section 41 of insulating resin layer formation at the thickness of position, the expanding structure 21 of correspondence power transmission conductor.
In the present embodiment, the expanding structure of power transmission conductor including two ends and between two expanding structures in it is isometrical
Section, accordingly, insulating resin layer then include 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 more than outer isometrical section 42 of thickness,
In the case of ensureing insulation effect, the bonding strength of solid insulated busbar is improved.Certainly, in other embodiments, it is exhausted to ensure
Edge effect, as long as thickness of the thickness of flared section not less than outer isometrical section.
For insulating resin layer, it is contemplated that technique and corresponding insulating properties, insulating resin layer 4 is in power transmission conductor axle
Flared section 41 including two 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, so can relatively reduced whole isolated bus radial ruler
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 two ends of edge resin bed 4 are respectively equipped with connector drum 1, the flaring structure of correspondence insulating resin layer, and connector drum 1 is corresponding end
Portion's contracting larynx cylinder, both ends contracting larynx cylinder has the contracting being gradually reduced towards the direction size on the inside of both ends contracting larynx cylinder respectively
Larynx section, so that end contracting larynx cylinder is corresponding with the expanding structure of insulating resin layer.
The solid insulated busbar that the present embodiment is provided, the expanding structure in two ends being provided with by power transmission conductor is realized to insulation
The clamp positioning of resin bed, it is ensured that the secure engagement power of insulating resin layer and insulated electric conductor, it is ensured that whole solid insulated busbar
Forming Quality.
It should be noted that due to insulating resin layer and the self-strength of power transmission conductor, the strong of bus can be ensured completely
Degree, so, the cylinder of protectiveness can be not provided between both ends contracting larynx cylinder, production work can be so reduced to greatest extent
When, it can also reduce manufacturing process difficulty.
Embodiment 2：
As shown in Figure 3 and Figure 4, the something in common of the structure of the solid insulated busbar in the present embodiment and embodiment 1 is：By interior
The power transmission conductor 2 and insulating resin layer 4 outwards once arranged, are essentially consisted in the difference of embodiment 1：In insulating resin layer
Outer isometrical section 42 of 4 is externally provided with protection cylinder 52, the protection cylinder 52 and the both ends contracting larynx cylinder company as connector drum 51
It is connected together to form the outer cylinder body being sleeved on outside insulating resin layer, middle protection cylinder 52 is sleeved on the outer of insulating resin layer
On isometrical section 42, because outer isometrical section of size is relatively small, so, protection cylinder 52 can directly use pipe profile, it is not necessary to
Specially weld large-sized cylinder.
Embodiment 3：
As shown in Figure 5 and Figure 6, the something in common of the structure of the solid insulated busbar in the present embodiment and embodiment 1 is：By interior
The power transmission conductor 2 and insulating resin layer 4 outwards once arranged, are essentially consisted in the difference of embodiment 2：Protection cylinder herein
Body includes the protection cushion 7 of inner side and the protection sheath 8 in outside, and protection cushion 7 is wrapped in the outer isometrical of insulating resin layer 4
Section, in fact, insulating resin layer 4 and the self-strength of power transmission conductor 2 are enough to ensure that bus intensity, this protection cushion and anti-
Shield sheath is mainly for the problem of the scratching that prevent from occurring in transport, installation process colliding with.
In above-mentioned 3 embodiments, the expanding structure at power transmission conductor two ends is conical section.In other embodiments, transmit electricity
The expanding structure at conductor two ends is alternatively stairstepping section.
The solid insulated busbar that above-mentioned 3 embodiments are provided when in use, can by end contracting larynx cylinder with it is corresponding
Bus or the connection of other structures flange, to realize that corresponding bus is connected.
Claims (8)
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：
Two ends in the axial direction of the power transmission conductor are respectively provided with realizes axial limiting to the insulating resin layer in the axial direction
Expanding structure.
2. solid insulated busbar according to claim 1, it is characterised in that：The expanding structure is to be led along towards transmission of electricity
The conical section of the direction radial dimension increase of body axial end portion.
3. solid insulated busbar according to claim 2, it is characterised in that：The power transmission conductor includes the institute positioned at two ends
State interior isometrical section between conical section.
4. solid insulated busbar according to claim 3, it is characterised in that：The insulating resin layer includes and the transmission of electricity
The corresponding flared section of conical section of conductor and corresponding with isometrical section in the power transmission conductor outer isometrical section.
5. solid insulated busbar according to claim 4, it is characterised in that：The thickness of the flared section is not less than institute
State outer isometrical section of thickness.
6. solid insulated busbar as claimed in any of claims 2 to 5, it is characterised in that：The conical section is circle
Wimble structure.
7. the solid insulated busbar according to claim 4 or 5, it is characterised in that：It is set with outside the insulating resin layer outer
Cylinder, outer cylinder body includes the connector drum corresponding with the flared section at two ends and the corresponding with described outer isometrical section of centre is prevented
Casing body.
8. solid insulated busbar according to claim 7, it is characterised in that：The protection that the protection cylinder includes inner side is delayed
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 true CN106992038A (en) | 2017-07-28 |
| CN106992038B 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) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013219887A (en) * | 2012-04-06 | 2013-10-24 | Hitachi Cable Ltd | Solid insulating bus, and terminal connection thereof |
| 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
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013219887A (en) * | 2012-04-06 | 2013-10-24 | Hitachi Cable Ltd | Solid insulating bus, and terminal connection thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106992038B (en) | 2018-12-14 |
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