CN205986037U - A fire -proof bus duct - Google Patents
A fire -proof bus duct Download PDFInfo
- Publication number
- CN205986037U CN205986037U CN201620957764.4U CN201620957764U CN205986037U CN 205986037 U CN205986037 U CN 205986037U CN 201620957764 U CN201620957764 U CN 201620957764U CN 205986037 U CN205986037 U CN 205986037U
- Authority
- CN
- China
- Prior art keywords
- bus duct
- heat conduction
- silicon rubber
- bent
- upper cover
- 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
Links
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 239000003063 flame retardant Substances 0.000 claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 12
- 239000011707 mineral Substances 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 28
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 5
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- 210000002268 wool Anatomy 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 229910003978 SiClx Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000007943 implant Substances 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims description 2
- 238000004901 spalling Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 238000004017 vitrification Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- 241001270131 Agaricus moelleri Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Installation Of Bus-Bars (AREA)
Abstract
The utility model discloses a fire -proof bus duct, including upper cover plate, lower apron and two outer panels, the outer panel is equipped with the multi -disc fin to the evagination, and every fin all is provided with the even first louvre in a plurality of intervals, be provided with a plurality of conductors between two outer panels, every conductor all is provided with insulation protective layer on the surface, and every insulation protective layer all is provided with the mineral substance flame retardant coating on the surface, and mineral substance flame retardant coating surface cover is equipped with the springiness cushioning layer, and it has pottery vitrification silicon rubber to fill in the space by outer panel, upper cover plate and lower cover plate -type one -tenth, and pottery vitrification silicon rubber is equipped with a plurality of third louvres along the break -over of bus duct length direction, the upper cover plate includes bent plate in the heat conduction, and the middle bending type of bent plate becomes flat recessed groove in the heat conduction, lap bent plate under one shot forming's heat conduction down, the middle bending type of bent plate becomes the flat top bellying under the heat conduction. In order to solve spalling and the low problem of radiating efficiency that current bus duct expend with heat and contract with cold arouses.
Description
Technical field
This utility model is related to electrical distribution field and in particular to arriving a kind of fireproof bus duct.
Background technology
Modern high-rise building and large-scale workshop need huge electric energy, and in the face of hundreds and thousands of peaces needed for this huge load
The powerful electric current of training will be from safe and reliable transmission equipment.Bus duct is a power distribution equipment efficiently conveying electric current, especially
It has adapted to higher and higher building and the needs of large-scale plant economical rationality distribution.
But, bus duct there is also some shortcomings, such as, because the collection speed arrangement between bus duct would generally produce relatively
Big heat, the heat dissipation problem of bus duct is also a hang-up all the time perplexing bus duct research staff, if bus
Groove does not possess necessary heat dispersion, once high temperature can not disperse in time produced by the busbar in bus duct, is just likely to carry
Carry out fire safety hidden danger.
For this problem, in disclosed patent, disclose one kind using filling fire resisting material in bus duct body
Mode, to solve the problems, such as the fire safety hidden danger that may lead to because busbar is overheated, but due to busbar bus duct this
It is in vivo in the environment of sealing, the heat of generation can't reduce, and the expansion system between refractory material and busbar copper sheet
Number is different, is very easy to the spalling phenomenon leading to lead between busbar copper sheet and refractory material because the coefficient of expansion is different.
Utility model content
The purpose of this utility model be provide a kind of fireproof bus duct, with solve existing bus duct expand with heat and contract with cold cause swollen
Split the problem low with radiating efficiency.
For reaching above-mentioned purpose, this utility model be employed technical scheme comprise that：A kind of fireproof bus duct is provided, including on cover
Plate, lower cover and two outer panels, equal 90 ° of the two ends of outer panel are bent to form outer flanging, and the outer flanging of each outer panel is respectively
Fix with parallel upper cover plate and lower cover, outer panel is outwards convexly equipped with multi-disc evenly spaced fin from top to bottom, every
It is provided with multiple outside side plate directions at the other end of fin opposite exterior lateral sides plate to extend and the width to fin
Evenly spaced first louvre；It is provided with multiple conductors between two outer panels, every conductive surface is provided with insulation
Protective layer, each insulation protection layer surface is provided with mineral flame retardant coating, and mineral flame retardant coating outer surface is sheathed flexible
Cushion, is filled with Ceramic silicon rubber in the space being formed by outer panel, upper cover plate and lower cover, Ceramic silicon rubber is provided with
Some the 3rd louvres along the break-through of busduct length direction；Upper cover plate includes bent plate in heat conduction, the centre of bent plate in heat conduction
It is bent to form flat depression groove, the top of recessed groove is provided with the top cover raising up, top cover is arranged below and is laid in recessed groove and opens
Heat sink at mouthful, heat sink is dispersed with some second louvres, the lower section laying refractory slab of heat sink, fills in recessed groove
There is fire resisting aluminium silicate wool felt；Lower cover includes bent plate under one-time formed heat conduction, and under heat conduction, the centre of bent plate is bent to form flat-top
Lobe, the side wall of lobe and plan vertical, the bottom of lobe is provided with base plate.
Preferably, Ceramic silicon rubber is by the way of being wound around Ceramic silicon rubber composite band.
Preferably, insulating protective layer is Ceramic silicon rubber insulating protective layer.
Preferably, mineral flame retardant coating is the synthetic mica tape or oxidation magnesium ribbon that thickness is 0.2mm ~ 2.0mm, or
It is the magnesium oxide implant that thickness is 0.3mm ~ 5.0mm.
In sum, this utility model has advantages below：
1st, this utility model by the Ceramic silicon rubber that is arranged in bus duct and is arranged on conductor and ceramic SiClx rubber
Elastic cord breaker between glue it is ensured that Ceramic silicon rubber while flameproof effect is realized to bus duct additionally it is possible to ensure
The spalling problem that will not cause due to expanding with heat and contract with cold between conductor and Ceramic silicon rubber.
2nd, in heat conduction, under bent plate and heat conduction, bent plate is all made using one-shaping technique, under bent plate and heat conduction in heat conduction
Bent plate uniform in material is consistent, and heat conductivility is stable, and heat transfer is quick, and recessed groove and lobe can be by the heats within bus duct
Quickly pass out, improve the radiating efficiency of bus duct.
Brief description
Fig. 1 is the schematic diagram of this utility model fireproof bus duct；
Wherein, 1, upper cover plate；2nd, mineral flame retardant coating；3rd, insulating protective layer；4th, conductor；5th, outer panel；6th, ceramic SiClx
Rubber；7th, fin；8th, fire resisting aluminium silicate wool felt；9th, lower cover；10th, base plate；11st, bent plate in heat conduction；12nd, recessed groove；13rd,
Two louvres；14th, top cover；15th, refractory slab；16th, the 3rd louvre；17th, elastic cord breaker；51st, outer flanging；71st, the first radiating
Hole；91st, bent plate under heat conduction；92nd, lobe.
Specific embodiment
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described in detail.
In an embodiment of the present utility model, as shown in Figure 1, there is provided a kind of fireproof bus duct, including upper cover plate 1,
Lower cover 9 and two outer panels 5, equal 90 ° of the two ends of outer panel 5 are bent to form outer flanging 51, the outer flanging 51 of each outer panel 5
Fixing with parallel upper cover plate 1 and lower cover 9 respectively, outer panel 5 is outwards convexly equipped with multi-disc evenly spaced radiating from top to bottom
Piece 7, is provided with multiple outside side plate 5 directions and extends and to fin at the other end of every fin 7 opposite exterior lateral sides plate 5
Evenly spaced first louvre 71 of 7 widths；It is provided with multiple conductors 4, every conductor 4 surface between two outer panels 5
On be provided with insulating protective layer 3, each insulating protective layer 3 surface is provided with mineral flame retardant coating 2, mineral flame retardant coating
2 outer surfaces are arranged with elastic cord breaker 17, are filled with ceramic in the space being formed by outer panel 5, upper cover plate 1 and lower cover 9
Silicone rubber 6, Ceramic silicon rubber 6 is provided with some the 3rd louvres 16 along the break-through of busduct length direction；Upper cover plate 1 includes
Bent plate 11 in heat conduction, in heat conduction, the centre of bent plate 11 is bent to form flat depression groove 12, and the top of recessed groove 12 is provided with convex
The top cover 14 rising, is provided with the heat sink being laid at recessed groove 12 opening, heat sink is dispersed with some second below top cover 14
Louvre 13, the lower section laying refractory slab 15 of heat sink, it is filled with fire resisting aluminium silicate wool felt 8 in recessed groove 12；Lower cover 9 includes
Bent plate 91 under one-time formed heat conduction, under heat conduction, the centre of bent plate 91 is bent to form flat-top lobe 92, the side wall of lobe 92
With plan vertical, the bottom of lobe 92 is provided with base plate 10.
Optimal enforcement example of the present utility model, Ceramic silicon rubber 6 is by the way of being wound around Ceramic silicon rubber composite band；
Insulating protective layer 3 is Ceramic silicon rubber insulating protective layer；Mineral flame retardant coating 2 is the synthesis cloud that thickness is 0.2mm ~ 2.0mm
Master tape or oxidation magnesium ribbon, or the magnesium oxide implant for 0.3mm ~ 5.0mm for the thickness.
It is filled with Ceramic silicon rubber 6, the outermost of conductor 4 in the space that outer panel 5, upper cover plate 1 and lower cover 9 are formed
Layer is provided with elastic cord breaker 17, is provided with the of some length direction break-through along bus duct body at Ceramic silicon rubber 6
Three louvres 16, when bus duct is in work, the conductor 4 being in bus duct can produce heat, and these heats will transmit
To being filled in the intrinsic Ceramic silicon rubber of bus duct 6, thus can make conductor 4 and Ceramic silicon rubber 6 be all heated swollen
Swollen, and when bus duct quits work, busbar will stop heating until returning to room temperature, now conductor 4 and Ceramic silicon rubber 6
Also will restore to the original state therewith, due to being provided with elastic cord breaker 17 between conductor 4 and Ceramic silicon rubber 6 during this,
The swell increment being produced by conductor 4 and Ceramic silicon rubber 6 can obtain transition by elastic cord breaker 17 and offset；Dissipate by the 3rd
The heat absorbing in Ceramic silicon rubber 6 can quickly be discharged by the setting of hot hole 16, will accelerate the air in bus duct
Heat can timely be taken out of by circulation, increased the service life of whole fireproof bus duct.
In order to further increase the radiating effect of bus duct, outer panel 5 be outwards convexly equipped with multi-disc from top to bottom uniformly between
Every fin 7, and be provided with multiple outside side plate 5 directions at the other end of each fin 7 opposite exterior lateral sides plate 5 and extend
And evenly spaced first louvre 71 of width to fin 7；Can be by being arranged on convex on two outer panels 5
The fin 7 rising, accelerates bus duct body interior and is distributed by the heat that the conductor 4 of busbar produces, and, on fin 7 also
It is provided with multiple interval settings and open up the first louvre 71 of the outside side plate in end 5 that direction is fin 7, the first louvre
71 hole depth direction is the width of fin 7, thus significantly increased the surface area of fin 7, also significantly
Increased the radiating efficiency of fin 7, be that the heat that the busbar in bus duct produces has obtained quickly distributing channel, increased
Busbar and the service life of bus duct.
In heat conduction of the present utility model, bent plate 11 adopts one-shaping technique to make, and recessed groove 12 extends in bus duct
Portion, preferably by the heat transfer within bus duct out can accelerate bus duct radiating；The principle of bent plate 91 and heat conduction under heat conduction
The principle of upper bent plate 11 is identical.Form an interior sealed space, conductor 4 runs the heat producing between heat sink and top cover 14
Nature can rise, enter above heat sink through the second louvre 13, heat is released, more traditional bus duct, radiating effect
Fruit is faster.Fire resisting aluminium silicate wool felt 8 and refractory slab 15 are filled in bus duct from inside to outside, play effective fireproofing function, protect
Protect and lead body 4 and be not subject to influence of fire.
Although being described in detail to specific embodiment of the present utility model in conjunction with accompanying drawing, it is right to should not be construed as
The restriction of the protection domain of this patent.In scope described by claims, those skilled in the art are without creative labor
Move the various modifications that can make and deformation still belongs to the protection domain of this patent.
Claims (4)
1. a kind of fireproof bus duct it is characterised in that：Including upper cover plate（1）, lower cover（9）With two outer panels（5）, outer panel
（5）Equal 90 ° of two ends be bent to form outer flanging（51）, the outer flanging of each outer panel（51）Respectively with parallel upper cover plate（1）
And lower cover（9）Fixing, outer panel（5）Outwards it is convexly equipped with multi-disc evenly spaced fin from top to bottom（7）, every fin
Opposite exterior lateral sides plate（5）Other end at be provided with multiple outside side plates（5）Direction extends and to fin（7）Width side
To evenly spaced first louvre（71）；Two outer panels（5）Between be provided with multiple conductors（4）, every conductor（4）Surface
On be provided with insulating protective layer（3）, each insulation protection layer surface is provided with mineral flame retardant coating（2）, described mineral
Matter flame retardant coating（2）Outer surface is arranged with elastic cord breaker（17）, by described outer panel（5）, upper cover plate（1）And lower cover（9）Shape
It is filled with Ceramic silicon rubber in the space becoming（6）, described Ceramic silicon rubber（6）Be provided with some along busduct length direction
3rd louvre of break-through（16）；Described upper cover plate（1）Including bent plate in heat conduction（11）, bent plate in described heat conduction（11）Centre
It is bent to form flat depression groove（12）, described recessed groove（12）Top be provided with the top cover raising up（14）, described top cover
（14）Lower section is provided with and is laid in recessed groove（12）Heat sink at opening, described heat sink is dispersed with some second louvres
（13）, the lower section laying refractory slab of described heat sink（15）, described recessed groove（12）In be filled with fire resisting aluminium silicate wool felt（8）；
Described lower cover（9）Including bent plate under one-time formed heat conduction（91）, bent plate under described heat conduction（91）Centre be bent to form flat
Top lobe（92）, lobe（92）Side wall and plan vertical, lobe（92）Bottom be provided with base plate（10）.
2. fireproof bus duct as claimed in claim 1 it is characterised in that：Described Ceramic silicon rubber（6）Ceramic using being wound around
The mode of SiClx rubber composite belt.
3. fireproof bus duct as claimed in claim 1 it is characterised in that：Described insulating protective layer（3）It is Ceramic silicon rubber
Insulating protective layer.
4. fireproof bus duct as claimed in claim 1 it is characterised in that：Described mineral flame retardant coating（2）Be thickness be 0.2mm
The synthetic mica tape of ~ 2.0mm or oxidation magnesium ribbon, or the magnesium oxide implant for 0.3mm ~ 5.0mm for the thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620957764.4U CN205986037U (en) | 2016-08-29 | 2016-08-29 | A fire -proof bus duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620957764.4U CN205986037U (en) | 2016-08-29 | 2016-08-29 | A fire -proof bus duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986037U true CN205986037U (en) | 2017-02-22 |
Family
ID=58037834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620957764.4U Expired - Fee Related CN205986037U (en) | 2016-08-29 | 2016-08-29 | A fire -proof bus duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205986037U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565480A (en) * | 2017-10-25 | 2018-01-09 | 江苏昊昱科技咨询有限公司 | A kind of bus duct with regulatory function |
| CN107591759A (en) * | 2017-09-04 | 2018-01-16 | 深圳市沃尔核材股份有限公司 | One kind is with unidirectional thermal insulation board fireproof bus duct |
| CN107882905A (en) * | 2017-12-28 | 2018-04-06 | 江苏向荣电气有限公司 | The Rubber shock-absorbing pad of bus duct mounting support special for wind power generation |
| CN108879541A (en) * | 2018-06-06 | 2018-11-23 | 荣马电器有限公司 | A kind of fireproof bus duct |
| CN111969525A (en) * | 2020-08-31 | 2020-11-20 | 曾繁强 | Bus duct special for data center |
| CN111969526A (en) * | 2020-08-31 | 2020-11-20 | 曾繁强 | Mineral fire-resistant bus duct |
| CN111969528A (en) * | 2020-08-31 | 2020-11-20 | 曾繁强 | Intelligent bus duct and jack box |
| CN111969527A (en) * | 2020-08-31 | 2020-11-20 | 曾繁强 | Novel intelligent bus duct |
| CN112018694A (en) * | 2020-08-31 | 2020-12-01 | 曾繁强 | Bus duct with temperature rise monitoring system |
-
2016
- 2016-08-29 CN CN201620957764.4U patent/CN205986037U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591759A (en) * | 2017-09-04 | 2018-01-16 | 深圳市沃尔核材股份有限公司 | One kind is with unidirectional thermal insulation board fireproof bus duct |
| CN107591759B (en) * | 2017-09-04 | 2024-04-05 | 深圳市沃尔核材股份有限公司 | Refractory bus duct with unidirectional heat insulation plate |
| CN107565480A (en) * | 2017-10-25 | 2018-01-09 | 江苏昊昱科技咨询有限公司 | A kind of bus duct with regulatory function |
| CN107882905A (en) * | 2017-12-28 | 2018-04-06 | 江苏向荣电气有限公司 | The Rubber shock-absorbing pad of bus duct mounting support special for wind power generation |
| CN108879541A (en) * | 2018-06-06 | 2018-11-23 | 荣马电器有限公司 | A kind of fireproof bus duct |
| CN108879541B (en) * | 2018-06-06 | 2024-06-11 | 荣马电器有限公司 | Fire-resistant bus duct |
| CN111969528A (en) * | 2020-08-31 | 2020-11-20 | 曾繁强 | Intelligent bus duct and jack box |
| CN111969527A (en) * | 2020-08-31 | 2020-11-20 | 曾繁强 | Novel intelligent bus duct |
| CN112018694A (en) * | 2020-08-31 | 2020-12-01 | 曾繁强 | Bus duct with temperature rise monitoring system |
| CN111969526B (en) * | 2020-08-31 | 2021-09-07 | 曾繁强 | Mineral fire-resistant bus duct |
| CN112018694B (en) * | 2020-08-31 | 2021-09-07 | 曾繁强 | Bus duct with temperature rise monitoring system |
| CN111969525B (en) * | 2020-08-31 | 2021-11-09 | 曾繁强 | Bus duct special for data center |
| CN111969528B (en) * | 2020-08-31 | 2021-11-09 | 曾繁强 | Jack box of intelligence bus duct |
| CN111969526A (en) * | 2020-08-31 | 2020-11-20 | 曾繁强 | Mineral fire-resistant bus duct |
| CN111969525A (en) * | 2020-08-31 | 2020-11-20 | 曾繁强 | Bus duct special for data center |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170222 |