CN106849640A - A kind of divider with heat abstractor - Google Patents
A kind of divider with heat abstractor Download PDFInfo
- Publication number
- CN106849640A CN106849640A CN201510888570.3A CN201510888570A CN106849640A CN 106849640 A CN106849640 A CN 106849640A CN 201510888570 A CN201510888570 A CN 201510888570A CN 106849640 A CN106849640 A CN 106849640A
- Authority
- CN
- China
- Prior art keywords
- divider
- heat
- epoxy bucket
- epoxy
- heat exchanger
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Insulators (AREA)
Abstract
The invention provides a kind of divider with heat abstractor, the divider includes：Voltage grading resistor, equalizing capacitor, hollow insulator and epoxy bucket；Divider top is provided with vortex heat exchanger, and the vortex heat exchanger includes：Heat exchanger fin, heat pipe and drum.The present invention uses many heat-pipe radiators, heat exchanger fin to be designed according to being vortexed, and increases thermocontact area, and produces eddy current effect, improves heat exchanger effectiveness.Using heat exchange method, efficiently the heat inside divider is outwards distributed, it is ensured that the stable operation of divider.
Description
Technical field
The present invention relates to a kind of divider, and in particular to a kind of divider with heat abstractor.
Background technology
The heat that the heater element of the divider of existing DC converter station is produced collects with dielectric
Upper end inside to hollow insulator so that divider hollow insulator inner upper end and lower end occur compared with
Big thermograde, according to voltage class, this temperature difference is up to 20K or more than 30K.
There is larger thermograde between divider inner upper end and lower end under moist environmental conditions,
Hollow insulator outer upper outer surface, because interior insulator temperature is higher, causes outside hollow insulator upper end
Easily there is the state of relatively dry in side, and relative moistening easily occurs in hollow insulator outer lower portion outer surface
State.Under DC electric field effect, insulator surface is not only easier filth occur compared with AC field effect,
And filth state is more serious.The presence of surface filth thing, adds outer surface dampness, causes hollow insulation
The surface distributed resistance of sub- outer surface is uneven, causes the upper and lower Potential distribution of insulator uneven, causes top
Electric-field intensity increase, the electric-field intensity of bottom is reduced；Flashover can occur, caused punch through when serious existing
The generation of elephant.Because the Potential distribution inside hollow insulator is forced to be uniformly distributed limitation by resitstance voltage divider,
The surface distributed resistance of outer surface it is uneven it is also possible to causing hollow insulator inside and outside wall between occur it is high
Potential difference, once puncturing, whole hollow insulator is likely to occur permanent damage.
The content of the invention
To overcome drawbacks described above, the invention provides a kind of divider with heat abstractor, handed over using heat
The mode changed distributes the heat inside divider, it is ensured that the stable operation of divider, carries
The precision and stability of divider high, improves insulating properties of the divider under filthy and wet environment
Energy.
To achieve the above object, concrete technical scheme of the invention is as follows：
A kind of divider with heat abstractor, the divider includes：It is concentric from inside to outside according to
Epoxy bucket (5) and hollow insulator (3) of secondary setting；Divider resistance in epoxy bucket (5)
Device (1) and equalizing capacitor (2)；The concentric setting in upper end of epoxy bucket (5) include heat exchanger fin (8),
The vortex heat exchanger (7) of heat pipe (9) and drum (10).
The heat pipe (9) is connected with the top outer of hollow insulator (3), which is provided with spaced one
The heat exchanger fin (8) of set a distance；The drum (10) is connected with the inside top of the hollow insulator (3),
And bucket wall is provided with air exchanging hole.
One end of the drum (10) is the gripper edge turned up, and the gripper edge is provided with fixing hole, bolt
By fixing hole by drum (10) installed in hollow insulator (3) inside top；
The inside of the drum (10) is provided with volute blade (11).
The top of epoxy bucket (5) is connected with drum (10), and bottom is connected with base, on the base
It is provided with base air channel；
Epoxy bucket (5) is made up of epoxy bucket unit, and the epoxy bucket unit is connected by grading ring between level；
Air channel in being set between adjacent epoxy bucket unit.
The inwall of epoxy bucket unit is provided with voltage grading resistor (1) and in parallel with voltage grading resistor (1)
Equalizing capacitor (2), voltage grading resistor (1) series connection between the epoxy bucket unit.
The outer wall of epoxy bucket unit is provided with voltage grading resistor (1) and in parallel with voltage grading resistor (1)
Equalizing capacitor (2), voltage grading resistor (1) series connection between the epoxy bucket unit.
The inside filling insulating gas of the hollow insulator (3) and epoxy bucket (5), insulating gas passes through
Air exchanging hole and base air channel are circulated between hollow insulator (3) and epoxy bucket (5)；The insulation
Gas is SF6Gas, SF6The pressure of gas is 0.2~0.5MPa.
The hollow insulator (3) is extra-high voltage organic silicon rubber hollow bushing, and insulated umbrella is provided with outside sleeve pipe
Skirt.
Compared with immediate prior art, beneficial effects of the present invention are as follows：
1) present invention uses heat exchange method, efficiently distributes the heat inside divider, it is ensured that direct current
The stable operation of divider.
2) present invention uses many heat-pipe radiators, heat exchanger fin to be designed according to being vortexed, and increases thermocontact area, with
And eddy current effect is produced, improve heat exchanger effectiveness.
3) present invention designs many heat-pipe radiators of Large Copacity outside top flange cover plate, realizes that solid is gentle
Heat exchange between body, divider internal heat is efficiently distributed to exterior space.
Brief description of the drawings
Fig. 1 is the divider structural representation with vortex heat exchanger.
Fig. 2 is vortex heat exchanger front view.
Fig. 3 is vortex heat exchanger top view.
Fig. 4 is vortex heat exchanger upward view.
Wherein, 1- voltage grading resistors；2- equalizing capacitors；3- hollow insulators；The outer air chambers of 4-；5- epoxies bucket；
Air chamber in 6-；7- vortex heat exchangers；8- heat exchanger fins；9- heat pipes；10- drums；11- blades；.
Specific embodiment
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 provides a kind of structural representation of the divider with heat abstractor, DC partial voltage for the present invention
Device includes：Voltage grading resistor 1, equalizing capacitor 2, hollow insulator 3 and epoxy bucket 5；Divider
Top is provided with vortex heat exchanger 7, as shown in Fig. 2 vortex heat exchanger 7 includes：Heat exchanger fin 8, the and of heat pipe 9
Drum 10.The top outer of hollow insulator 3 is provided with the heat pipe 9 being vertically connected with hollow insulator 3, heat
Pipe 9 is provided with the heat exchanger fin 8 of spaced certain distance；The inside top of hollow insulator 3 is provided with drum
10 and Open Side Down, the bucket wall of drum 10 is provided with air exchanging hole.One end of drum 10 is the clamping turned up
Side, gripper edge is provided with fixing hole, and drum 10 is arranged on bolt the top of hollow insulator 3 by fixing hole
Portion inner side；The inside of drum 10 is provided with volute blade 11.
Epoxy bucket 5 is provided with hollow insulator 3, hollow insulator 3 is coaxially arranged with epoxy bucket 5；Epoxy bucket
5 spaces surrounded with hollow insulator 3 are outer air chamber 4, and the space in epoxy bucket 5 is interior air chamber 6；Epoxy
The top of bucket 5 is connected with drum 10, and bottom is connected with base, and base is provided with base air channel；Epoxy bucket 5
It is made up of epoxy bucket unit, epoxy bucket unit is connected by grading ring between level；Between adjacent epoxy bucket unit
Air channel in setting.The inwall of epoxy bucket unit is provided with voltage grading resistor 1 and equalizing capacitor 2, divider resistance
Device, 1 is in parallel with equalizing capacitor 2, and the voltage grading resistor 1 between epoxy bucket unit is connected.
As described in Figure 1, when divider normally runs, voltage grading resistor 1 generates heat, its heat for producing
The temperature of the interior insulation gas of air chamber 6 is raised in triggering, and insulating gas rises；The bottom of interior air chamber 6 is formed
Depression.The insulating gas of rising by heat band to epoxy bucket 5 top, the heat entrained by insulating gas
Amount is conducted on heat exchanger fin 8 and heat pipe 9 to hollow insulator 3 through blade 11, through heat exchanger fin 8 and heat
Pipe 9 distributes heat to outside.
Voltage grading resistor 1 generates heat, and interior air chamber 6 and outer air chamber 4 have temperature difference, the insulation in interior air chamber 6
Gas is upwardly into the top of epoxy bucket 5, is spread through the outside air chamber 4 of air exchanging hole, and outer air chamber 4 forms top
High-pressure area is formed, draught head can be formed at the position up and down of interior air chamber 6 and outer air chamber 4, insulating gas exists
Back down to the depression of divider bottom in outer air chamber 4, epoxy bucket 5 is entered by base air channel
Bottom；The heat for carrying the generation of voltage grading resistor 1 again rises to the top of epoxy bucket 5, causes insulation
Gas is produced and circulated up and down, can reduce the temperature difference in the vertical direction of divider, reduces insulation
The inner upper end and lower temperature gradient of son reach the purpose of balanced divider internal temperature gradient distribution.
Equalizing capacitor can be considered lossless element, can be pacified according to hollow insulator inner space and structure
Mounted in the inner or outer side of epoxy bucket.
Fig. 3 is vortex heat exchanger top view；The layering of heat exchanger fin 8 is connected with heat pipe 9, on heat exchanger fin 8 staggeredly
A large amount of louvres are distributed, heat exchange area is improved, aspect radiates in still air.
Fig. 4 is vortex heat exchanger upward view；Blade 11 is designed according to being vortexed, the helical arrangement of multiple blades 11,
Increase contact area, produces eddy current effect, and divider internal heat is efficiently outwards distributed, and realizes
Solid -- heat exchange between gas.
It is to be understood that, present invention and specific embodiment are intended to prove technical side provided by the present invention
The practical application of case, should not be construed as limiting the scope of the present invention.Those skilled in the art are in this hair
Under bright spirit and principle are inspired, can various modifications may be made, equivalent or improve.But these change or repair
Change and applying in pending protection domain.
Claims (8)
1. a kind of divider with heat abstractor, the divider includes：It is concentric from inside to outside
Epoxy bucket (5) and hollow insulator (3) for setting gradually；Partial pressure electricity in epoxy bucket (5)
Resistance device (1) and equalizing capacitor (2)；It is characterized in that：The upper end of epoxy bucket (5) is concentric to be set
Put the vortex heat exchanger (7) including heat exchanger fin (8), heat pipe (9) and drum (10).
2. divider according to claim 1, it is characterised in that：The heat pipe (9) and sky
The top outer of core insulation (3) is connected, and which is provided with the heat exchanger fin (8) of spaced certain distance；Institute
Drum (10) is stated to be connected with the inside top of the hollow insulator (3), and bucket wall is provided with air exchanging hole.
3. divider according to claim 2, it is characterised in that：The one of the drum (10)
The gripper edge to turn up, the gripper edge is held to be provided with fixing hole, bolt passes through fixing hole by drum (10)
Installed in the inside top of hollow insulator (3)；
The inside of the drum (10) is provided with volute blade (11).
4. divider according to claim 1, it is characterised in that：
The top of epoxy bucket (5) is connected with drum (10), and bottom is connected with base, on the base
It is provided with base air channel；
Epoxy bucket (5) is made up of epoxy bucket unit, and the epoxy bucket unit is connected by grading ring between level；
Air channel in being set between adjacent epoxy bucket unit.
5. divider according to claim 4, it is characterised in that：Epoxy bucket unit it is interior
Wall is provided with voltage grading resistor (1) and the equalizing capacitor (2) in parallel with voltage grading resistor (1), the ring
Voltage grading resistor (1) series connection between oxygen bucket unit.
6. divider according to claim 4, it is characterised in that：Outside the epoxy bucket unit
Wall is provided with voltage grading resistor (1) and the equalizing capacitor (2) in parallel with voltage grading resistor (1), the ring
Voltage grading resistor (1) series connection between oxygen bucket unit.
7. divider according to claim 1, it is characterised in that：The hollow insulator (3)
Insulating gas is filled with the inside of epoxy bucket (5), insulating gas is by air exchanging hole and base air channel in sky
Circulated between core insulation (3) and epoxy bucket (5)；The insulating gas is SF6Gas, SF6Gas
Pressure is 0.2~0.5MPa.
8. divider according to claim 1, it is characterised in that：The hollow insulator (3)
It is extra-high voltage organic silicon rubber hollow bushing, insulated umbrella skirt is provided with outside sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888570.3A CN106849640B (en) | 2015-12-07 | 2015-12-07 | Direct current voltage divider with heat dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888570.3A CN106849640B (en) | 2015-12-07 | 2015-12-07 | Direct current voltage divider with heat dissipation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106849640A true CN106849640A (en) | 2017-06-13 |
| CN106849640B CN106849640B (en) | 2020-06-16 |
Family
ID=59151351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510888570.3A Active CN106849640B (en) | 2015-12-07 | 2015-12-07 | Direct current voltage divider with heat dissipation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106849640B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441574A (en) * | 2019-08-12 | 2019-11-12 | 常州博瑞电力自动化设备有限公司 | Direct current voltage divider |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6315033B1 (en) * | 2000-05-22 | 2001-11-13 | Jia Hao Li | Heat dissipating conduit |
| CN2849961Y (en) * | 2005-07-11 | 2006-12-20 | 佛山市顺德区汉达精密电子科技有限公司 | Structure of radiating fin |
| CN1933710A (en) * | 2005-09-14 | 2007-03-21 | 富准精密工业(深圳)有限公司 | Heat tube radiating device |
| CN101203117A (en) * | 2006-12-13 | 2008-06-18 | 富准精密工业(深圳)有限公司 | Heat radiating device |
| CN101431879A (en) * | 2007-11-07 | 2009-05-13 | 秦彪 | Heat pipe intensified electronic device radiator |
| CN101713793A (en) * | 2009-12-04 | 2010-05-26 | 中国西电电气股份有限公司 | Gas insulation-based DC high voltage measuring device |
| CN102427285A (en) * | 2011-12-31 | 2012-04-25 | 大连熵立得传热技术有限公司 | Heat-pipe module heat dissipation oil bath electromotor |
| CN103594244A (en) * | 2013-11-01 | 2014-02-19 | 中国西电电气股份有限公司 | Bushing type condenser with heat dissipation structure |
-
2015
- 2015-12-07 CN CN201510888570.3A patent/CN106849640B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6315033B1 (en) * | 2000-05-22 | 2001-11-13 | Jia Hao Li | Heat dissipating conduit |
| CN2849961Y (en) * | 2005-07-11 | 2006-12-20 | 佛山市顺德区汉达精密电子科技有限公司 | Structure of radiating fin |
| CN1933710A (en) * | 2005-09-14 | 2007-03-21 | 富准精密工业(深圳)有限公司 | Heat tube radiating device |
| CN101203117A (en) * | 2006-12-13 | 2008-06-18 | 富准精密工业(深圳)有限公司 | Heat radiating device |
| CN101431879A (en) * | 2007-11-07 | 2009-05-13 | 秦彪 | Heat pipe intensified electronic device radiator |
| CN101713793A (en) * | 2009-12-04 | 2010-05-26 | 中国西电电气股份有限公司 | Gas insulation-based DC high voltage measuring device |
| CN102427285A (en) * | 2011-12-31 | 2012-04-25 | 大连熵立得传热技术有限公司 | Heat-pipe module heat dissipation oil bath electromotor |
| CN103594244A (en) * | 2013-11-01 | 2014-02-19 | 中国西电电气股份有限公司 | Bushing type condenser with heat dissipation structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441574A (en) * | 2019-08-12 | 2019-11-12 | 常州博瑞电力自动化设备有限公司 | Direct current voltage divider |
| CN110441574B (en) * | 2019-08-12 | 2022-05-13 | 常州博瑞电力自动化设备有限公司 | Direct current voltage divider |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106849640B (en) | 2020-06-16 |
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