CN103022944A - Magnesium oxide mineral insulation bus - Google Patents
Magnesium oxide mineral insulation bus Download PDFInfo
- Publication number
- CN103022944A CN103022944A CN 201110279878 CN201110279878A CN103022944A CN 103022944 A CN103022944 A CN 103022944A CN 201110279878 CN201110279878 CN 201110279878 CN 201110279878 A CN201110279878 A CN 201110279878A CN 103022944 A CN103022944 A CN 103022944A
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- China
- Prior art keywords
- magnesium oxide
- mineral insulation
- bus
- electric conduction
- insulation bus
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Abstract
The invention discloses a magnesium oxide mineral insulation bus, and relates to a mineral insulation bus filling material. The invention provides a magnesium oxide mineral insulation bus which has the advantages that an insulation effect is guaranteed, the encapsulation is convenient, and the filling compactness is high. The magnesium oxide mineral insulation bus comprises a strip-shaped shell and a plurality of electric conduction rows, wherein a plurality of electric conduction rows are arranged in the shell in an interval manner, and a mineral insulation padding is filled in a gap between the inner wall of the shell and the electric conduction rows. The magnesium oxide mineral insulation bus provided by the invention changes the traditional insulation mode, modification magnesium oxide is filled in a groove, the insulating property of a bus groove is greatly improved, a melting point of magnesium oxide is higher, the magnesium oxide can carry out normal operation even in a naked flame, the non-flame properties are greatly strengthened (the relative density is 3.58 g/ cubic centimeter, and the melting point is 2852 DEG C). The magnesium oxide mineral insulation bus provided by the invention adopts a totally enclosed type, the waterproof property is good, but on average, the bus groove is prevented from being influenced by the ambient condition, the good power transmission action is achieved, the electric conduction rows are directly contacted with the mineral insulation padding, and a heat dissipation effect is further improved.
Description
Technical field
The present invention relates to a kind of mineral insulation bus packing material.
Background technology
Along with the modernization project development, the power consumption of all trades and professions is fast to be increased, and traditional cable can not satisfy large electric current conveying system, and bus duct just arises at the historic moment.Bus duct is since coming out, and by air type at first, intensity progressively develops into present compound insulation type, and its insulation mode is in continuous improvement, but is subjected to the restriction of environment for use, is existing defective aspect fire prevention, waterproof, the anti-aging all the time.
Patent Office of State Intellectual Property Office is CN 201868811 U in the notification number of 2010.6.15. bulletin, and the patented technology that name is called fireproof bus duct discloses a kind of fireproof bus duct, and it is being disposed on some busbars in the housing, then fills fire resistant infilling.But in the practical application, because the fire resistant infilling of filling is granular, be difficult to guarantee that the positioned parallel between each busbar concerns again; Still may cause occurring " short " problem.Therefore, in this case, " described conductor each outside be coated with insulating barrier ".So that the cost of product increases, radiating effect is poor.And this patent documentation and unexposed mineral insulating material.
Summary of the invention
The present invention is directed to above problem, provide a kind of and can guarantee insulation effect, and can is convenient, the high magnesium oxide mineral insulation bus of filling packing.
Technical scheme of the present invention is: comprise strip housing and some busbars, described some busbars are disposed in the housing, gap filling mineral insulating packing between inner walls and busbar, described mineral insulation filler comprises following component (weight portion): MgO:97-99, SiO
2: 0.8-1.3, Al
2O
3: 0.1-0.3, CaO:0.7-1.2, Fe
2O
3: 0.05-0.1, B
2O
3: 0.005-0.01, S:0.005-0.01.
The crystal grain of described each component of mineral insulation filler and content thereof are 120 orders: 5%, 140 order 10-20%, 200 order 25-40%, 325 order 15-30% ,-325 orders 10%.
The present invention has changed traditional insulation mode, by tamping modified oxidized magnesium in the groove, the insulation property of bus duct will be greatly improved like this, and because magnesian fusing point is higher, even under naked light, also can work, fire line strengthens (relative density is 3.58 g/ccs, 2852 ℃ of fusing points) greatly.The present invention adopts totally enclosed type, and water resistance is fine.Comprehensive, this bus duct can avoid being subjected to the impact of ambient conditions, has given play to good transmission of electricity effect.Line conductor row directly contacts with the mineral insulation filler, and then can improving radiating effect.
Description of drawings
Fig. 1 is schematic perspective view of the present invention,
Fig. 2 is structural representation of the present invention,
Fig. 3 is the left view of Fig. 2,
Fig. 4 is A-A cutaway view among Fig. 3,
1 is housing among the figure, the 2nd, and top cover, the 3rd, end cap, the 4th, busbar, the 5th, spacer, the 6th, mineral insulation filler.
Embodiment
Magnesium oxide mineral insulation bus of the present invention, comprise strip housing 1 and some busbars 4, described some busbars 4 are disposed in the housing 1, gap filling mineral insulating packing 6 between housing 1 inwall and busbar 4, described mineral insulation filler comprises following component (weight portion): MgO:97-99, SiO
2: 0.8-1.3, Al
2O
3: 0.1-0.3, CaO:0.7-1.2, Fe
2O
3: 0.05-0.1, B
2O
3: 0.005-0.01, S:0.005-0.01.
The crystal grain of described each component of mineral insulation filler and content thereof are 120 orders: 5%, 140 order 10-20%, 200 order 25-40%, 325 order 15-30% ,-325 orders 10%.
Specific product comprises strip housing 1 and some busbars 4 shown in Fig. 1-4, described some busbars 4 are disposed in the housing 1, is provided with at least two busbar spacers 5 in described housing 1 bottom surface; Described spacer 5 is sheet, is provided with the location notch consistent with busbar 4 quantity towards housing 1 center position, and described busbar 4 is arranged in the described location notch; Gap filling mineral insulating packing 6 between housing 2 inwalls and busbar 4.
Described spacer 5 is arranged on described housing 1 interior two ends near the position of housing end plug 3.Longer such as bus duct, then can set up at the middle part spacer.
Described housing comprises top cover 2, also is provided with the spacer with described housing 1 interior spacer 5 position consistency on the bottom surface of described top cover 2, so that described busbar 4 is positioned between housing 1 bottom surface spacer and the housing top cover spacer.So that the location steadiness of busbar 4 is better.
Claims (2)
1. magnesium oxide mineral insulation bus, comprise strip housing and some busbars, described some busbars are disposed in the housing, gap filling mineral insulating packing between inner walls and busbar, it is characterized in that described mineral insulation filler comprises following component (weight portion): MgO:97-99, SiO
2: 0.8-1.3, Al
2O
3: 0.1-0.3, CaO:0.7-1.2, Fe
2O
3: 0.05-0.1, B
2O
3: 0.005-0.01, S:0.005-0.01.
2. a kind of magnesium oxide mineral insulation bus according to claim 1 is characterized in that the crystal grain of described each component of mineral insulation filler and content thereof are 120 orders: 5%, 140 order 10-20%, 200 order 25-40%, 325 order 15-30% ,-325 orders 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279878 CN103022944A (en) | 2011-09-20 | 2011-09-20 | Magnesium oxide mineral insulation bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279878 CN103022944A (en) | 2011-09-20 | 2011-09-20 | Magnesium oxide mineral insulation bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103022944A true CN103022944A (en) | 2013-04-03 |
Family
ID=47971215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110279878 Pending CN103022944A (en) | 2011-09-20 | 2011-09-20 | Magnesium oxide mineral insulation bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103022944A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852336A (en) * | 2015-05-22 | 2015-08-19 | 重庆联控电气有限公司 | Manufacturing process method of mineral insulation bus duct |
| CN110945965A (en) * | 2017-06-01 | 2020-03-31 | 金叡院 | Radiator with heating device |
-
2011
- 2011-09-20 CN CN 201110279878 patent/CN103022944A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852336A (en) * | 2015-05-22 | 2015-08-19 | 重庆联控电气有限公司 | Manufacturing process method of mineral insulation bus duct |
| CN110945965A (en) * | 2017-06-01 | 2020-03-31 | 金叡院 | Radiator with heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |