CN107196526B - A kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching device - Google Patents
A kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching device Download PDFInfo
- Publication number
- CN107196526B CN107196526B CN201710338521.1A CN201710338521A CN107196526B CN 107196526 B CN107196526 B CN 107196526B CN 201710338521 A CN201710338521 A CN 201710338521A CN 107196526 B CN107196526 B CN 107196526B
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- Prior art keywords
- wind deflector
- heat
- foreboard
- cold
- cabinet
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Classifications
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- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
-
- 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
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
- H05K7/20918—Forced ventilation, e.g. on heat dissipaters coupled to components the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
-
- 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
- H05K7/20936—Liquid coolant with phase change
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching devices, including cabinet body, upper layer heat-pipe radiator, lower layer's heat-pipe radiator and blower；Cabinet body includes foreboard, back plate and the intermediate plate between foreboard and back plate；Foreboard includes upper foreboard and lower foreboard, and the top of lower foreboard is connected with preceding wind deflector；Intermediate plate includes upper mid plate and lower intermediate plate, and the top of lower intermediate plate is connected with rear wind deflector；Wind deflector after preceding wind deflector is connected by front and back wind deflector connecting rod；First area of the upper layer heat-pipe radiator between upper foreboard and upper mid plate, second area of lower layer's heat-pipe radiator between lower foreboard and lower intermediate plate；Blower is located at the lower section of lower layer's heat-pipe radiator.Air duct switching method of the present invention is simple and reliable；Eliminate the influence that lower layer's thyristor component generates heat to upper layer thyristor component temperature rise in traditional air chute；The radiating efficiency of self-cold and hot pipe heat radiation power cabinet is improved, and then improves its electric current of contributing.
Description
Technical field
The present invention relates to a kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching devices, belong to self-cold and hot pipe heat radiation power
Cabinet technical field.
Background technique
In self-cold and hot pipe heat radiation power cabinet, six groups of thyristor components of three-phase full-controlled rectifier bridge are divided into upper layer and lower layer and install, and three
Group upper layer positive arm is mounted in the heat-pipe radiator air duct of upper layer, and three groups of negative bridge arms of lower layer are mounted on lower layer's heat-pipe radiator air duct
It is interior.Under normal circumstances, the heat generated when thyristor works is taken away by the heat exchange between heat pipe, fin and air.Cabinet body
Front lower is equipped with bottom of cabinet air inlet 4, and the top of cabinet body is equipped with cabinet top air outlet 1, vertically through air duct in, due to lower layer
The heat accumulation of thyristor component causes lower part hot-air to rise, and upper layer thyristor component intake air temperature is caused to be promoted, so that
Upper layer thyristor junction temperature is higher than lower layer's thyristor, limits self-cold radiating power cabinet capacity.The spies such as short-circuit of machine's port are occurring
When different operating condition needs power cabinet to export larger current, thermal breakdown easily occurs for upper layer thyristor.
In the vertical air plenums of traditional self-cold and hot pipe heat radiation power cabinet, upper layer thyristor component is generated heat by lower layer's thyristor component
It influences, causes upper layer radiating element temperature high, limit power cabinet capacity under cold state；In addition, guaranteeing self cooling shape
In the case where state capacity, air duct is difficult to flexibly be switched between air-cooled operating condition self cooling.
Summary of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of self-cold and hot pipe heat radiation power cabinet air duct is automatic
Switching device, the present invention realize upper and lower level thyristor component when heat pipe heat radiation power cabinet is in self-cold radiating state and have independence
The function of heat dissipation channel improves the capacity under heat pipe heat radiation power cabinet self-cold radiating state；When heat pipe heat radiation power cabinet
Upper and lower level independence heat dissipation wind channel can be switched to again when needing to open standby blower auxiliary heat dissipation upper and lower level vertically through wind
Road guarantees that upper and lower level thyristor component is air-cooled simultaneously.
To achieve the goals above, the present invention is to realize by the following technical solutions:
A kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching device of the invention, including cabinet body, upper layer heat pipe heat radiation
Device, lower layer's heat-pipe radiator and blower；Cabinet body includes foreboard, back plate and the intermediate plate between foreboard and back plate；Foreboard packet
Foreboard and lower foreboard are included, the top of the lower foreboard is connected with preceding wind deflector；Intermediate plate includes upper mid plate and lower intermediate plate,
The top of lower intermediate plate is connected with rear wind deflector；Wind deflector after preceding wind deflector is connected by front and back wind deflector connecting rod；Upper layer heat pipe
First area of the radiator between upper foreboard and upper mid plate, lower layer's heat-pipe radiator are located at lower foreboard and lower centre
Second area between plate；Blower is located at the lower section of lower layer's heat-pipe radiator；When from cold state, the preceding wind deflector and rear wind-guiding
Plate rotates backward under the effect of gravity, forms air outlet behind middle part advance air port and middle part；The upper layer heat pipe heat radiation
Device carries out heat exchange by middle part advance air port and cabinet top air outlet, and lower layer's heat-pipe radiator is by bottom of cabinet air inlet in
Air outlet carries out heat exchange behind portion；To which upper and lower level heat-pipe radiator has mutually indepedent air duct；It is described leading when air-cooled state
Aerofoil drive after wind deflector rotate from the front to the back, be ultimately at upright state, at this time independent ventiduct become vertically through air duct；
Cold air outside cabinet is pumped into cabinet from bottom of cabinet air inlet by the blower, hot-air overflows outside cabinet from cabinet top air outlet in cabinet, reaches
The effect air-cooled simultaneously to upper and lower level heat-pipe radiator.
The shape of above-mentioned preceding wind deflector and rear wind deflector is arc-shaped.
The curvature of above-mentioned preceding wind deflector and rear wind deflector is 1/R, and radian a, arc width is α/2 2Rsin, wherein R is curvature
Radius.
Above-mentioned arc is wider than lower foreboard top and upper mid plate lower end catercorner length.
Above-mentioned preceding wind deflector and rear wind deflector are all made of hard PVC production.
Above-mentioned preceding wind deflector and rear wind deflector lower end pass through the top that bearing is mounted on lower foreboard and lower intermediate plate.
Above-mentioned preceding wind deflector, rear wind deflector pass through bearing with front and back wind deflector connecting rod and connect.
Beneficial effects of the present invention are as follows: air duct switching method is simple and reliable；Eliminate lower layer's thyristor in traditional air chute
The influence that component generates heat to upper layer thyristor component temperature rise；Improve the radiating efficiency of self-cold and hot pipe heat radiation power cabinet, Jin Erti
Its high electric current of contributing.
Detailed description of the invention
Fig. 1 is self-cold and hot pipe heat radiation power cabinet front view of the invention；
Air duct schematic diagram when Fig. 2 is of the invention self cooling；
Air duct schematic diagram when Fig. 3 is of the invention air-cooled；
Each label in figure: 1 cabinet top air outlet, 2 upper layer heat-pipe radiators, 3 lower layer's heat-pipe radiators, 4 bottom of cabinet air inlets, 5
Cabinet body, the upper foreboard of 5-1-1, foreboard under 5-1-2,5-2 back plate, 5-3-1 upper mid plate, intermediate plate under 5-3-2, wind deflector before 6,7
Wind deflector afterwards, 8 middle part after air outlet, 9 middle part advance air ports, 10 front and back wind deflector connecting rods, 11 bearings, 12 blowers.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Referring to Fig. 1, a kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching device of the invention, including cabinet body 5, upper layer
Heat-pipe radiator 2, lower layer's heat-pipe radiator 3, blower 12.Cabinet body 5 include foreboard, back plate 5-2 and be located at foreboard and back plate 5-2 it
Between intermediate plate；Foreboard includes upper foreboard 5-1-1 and lower foreboard 5-1-2, and the top of lower foreboard 5-1-2 is connected with preceding wind deflector 6；
Intermediate plate includes upper mid plate 5-3-1 and lower intermediate plate 5-3-2, and the top of lower intermediate plate 5-3-2 is connected with rear wind deflector 7；Before
Wind deflector 7 is (to guarantee preceding wind deflector 6, rear wind deflector 7 around bearing 11 after wind deflector 6 is connected by front and back wind deflector connecting rod 10
It is equidistant mobile).First area of the upper layer heat-pipe radiator 2 between upper foreboard 5-1-1 and upper mid plate 5-3-1, lower layer's heat
Second area of the tube radiator 3 between lower foreboard 5-1-2 and lower intermediate plate 5-3-2；Blower 12 is located at lower layer's heat pipe heat radiation
The lower section of device 3.
In the present embodiment, upper and lower level respectively places three sets of heat-pipe radiators, upper and lower level heat in self-cold and hot pipe heat radiation power cabinet
Tube radiator is designed as independent ventiduct, the air inlet of air duct of upper layer heat-pipe radiator 2 middle part, lower layer's heat pipe heat radiation on front side of cabinet body
The air inlet of air duct of device 3 is in cabinet body lower front.
From under cold state, upper layer heat-pipe radiator 2 by middle part advance air port 9 on front side of cabinet body and cabinet top air outlet 1 into
Row heat exchange；Lower layer's heat-pipe radiator 3 by air outlet 8 after the bottom of cabinet air inlet 4 of cabinet body lower part and the middle part on rear side of cabinet body into
Row heat exchange.
Preceding 6 lower end of wind deflector is mounted on lower intermediate plate 5-3-2 by the good bearing 11 of lubricant effect, because of self weight when self cooling
Fall by vertically through air duct separate as independent ventiduct, upper and lower level heat-pipe radiator and it is extraneous carry out independent heat exchange, not by
It affects one another.
When the movement of self-cold and hot pipe heat radiation power cabinet standby Thermal protection, i.e., under air-cooled state, in the work of big flow blower 12
Under, preceding wind deflector 6 is blown afloat lifting, and (when from cold state, lower air duct is warm in blockings using the production of high thermal resistance material for the wind deflector
Exchange), when guaranteeing air-cooled before wind deflector 6 can be raised to vertical position.
Preceding wind deflector 6, rear wind deflector 7 are coupled by being mounted on the front and back wind deflector connecting rod 10 in the middle part of wind deflector, rotation section
Position is installed using the good bearing 11 of lubricant effect, is driven when current wind deflector 6 is blown lifting by front and back wind deflector connecting rod 10
Wind deflector 7 rotates from the front to the back afterwards, is ultimately at upright state.At this time up and down independent ventiduct become vertically through air duct, by
Cold air outside cabinet is pumped into cabinet by blower 12 from cabinet body lower part air inlet, and hot-air overflows outside cabinet from cabinet top air outlet 1 in cabinet, is reached
The effect air-cooled simultaneously to upper and lower level heat-pipe radiator.
Present invention optimizes the air duct switched design under self cooling and air-cooled two operating conditions of heat pipe heat radiation power cabinet, improve certainly
The power output electric current of hot and cold tube heat radiation power cabinet, reducing thyristor leads to the probability of thermal breakdown due to overheating.
Referring to fig. 2, preceding wind deflector 6, rear wind deflector 7 are designed arc-shaped appearance, curvature 1/R, radian a, and arc width is
α/2 2Rsin, the width are greater than the top lower foreboard 5-1-2 and the lower end upper mid plate 5-3-1 catercorner length, wind deflector 6 before guaranteeing
Independent ventiduct up and down is formed upper lower air duct can be completely cut off under cold state.Preceding wind deflector 6, rear wind deflector 7 are designed as having one
Determine radian, windage can be reduced, be more advantageous to self-cold radiating.When from cold state, preceding wind deflector 6, rear wind deflector 7 are in its own weight
Under the action of power, preceding wind deflector 6 and rear wind deflector 7 are fulcrum to rotating after cabinet with bearing 11, until preceding wind deflector 6 covers up and down
The interface channel in air duct, forms air outlet 8 behind middle part advance air port 9 and middle part, and upper layer heat-pipe radiator 2 passes through middle part advancing air
Mouth 9 and cabinet top air outlet 1 carry out heat exchange, and lower layer's heat-pipe radiator 3 is carried out by air outlet 8 after bottom of cabinet air inlet 4 and middle part
Heat exchange.Upper and lower level heat-pipe radiator can have mutually indepedent air duct in this way, and heat-pipe radiator 2 temperature rise in upper layer is no longer by lower layer
The influence of 3 temperature rise of heat-pipe radiator.
Referring to Fig. 3, wind-force suffered by preceding wind deflector 6 can (K be air resistance coefficient, and S is front face area, and V is by formula F=K*S*V
Wind speed).When vertical position is fully achieved in current wind deflector 6, front face area S is minimum, if wind-force F suffered by wind deflector 6 before at this timemin
Wind deflector self weight G before and after > can guarantee front and back wind deflector after the starting of blower 12, the air-flow that can be raised is blown to vertical position,
So that upper lower air duct connection, radiates to upper and lower level heat-pipe radiator by forced air cooling.At this time air inlet of air duct be bottom of cabinet into
Air port 4, air outlet are cabinet top air outlet 1.To make preceding wind deflector 6 obtain biggish wind-force, in addition to using big flow blower, wind-guiding
It is 1/R that plate, which is designed as curvature, and radian is the arc panel of a, to obtain ideal front face area.Wind deflector and cabinet body connecting portion
And front and back wind deflector passes through the ideal bearing 11 of lubrication with the connecting portion of front and back wind deflector connecting rod 10 and is connected, with prevent due to
The bite of rotating mechanism causes wind deflector movement not in place.When blower 12 is switched to stop by operation, preceding wind deflector 6, rear wind-guiding
There is plate 7 design of radian can make it under the effect of gravity, fall naturally, and form independent ventiduct up and down.
The present invention realizes upper and lower level thyristor component when heat pipe heat radiation power cabinet is in self-cold radiating state and has independence
The function of heat dissipation channel improves the capacity under heat pipe heat radiation power cabinet self-cold radiating state.When heat pipe heat radiation power cabinet
Upper and lower level independence heat dissipation wind channel can be switched to again when needing to open standby blower auxiliary heat dissipation upper and lower level vertically through wind
Road guarantees that upper and lower level thyristor component is air-cooled simultaneously.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching device, including cabinet body (5), upper layer heat-pipe radiator (2), under
Layer heat-pipe radiator (3) and blower (12)；It is characterized in that,
The cabinet body (5) includes foreboard, back plate (5-2) and the intermediate plate between foreboard and back plate (5-2)；
The foreboard includes upper foreboard (5-1-1) and lower foreboard (5-1-2), before the top of the lower foreboard (5-1-2) is connected with
Wind deflector (6)；
The intermediate plate includes upper mid plate (5-3-1) and lower intermediate plate (5-3-2), the top of the lower intermediate plate (5-3-2)
It is connected with rear wind deflector (7)；
Wind deflector (7) after the preceding wind deflector (6) is connected by front and back wind deflector connecting rod (10)；
First area of the upper layer heat-pipe radiator (2) between upper foreboard (5-1-1) and upper mid plate (5-3-1), institute
State the second area of lower layer's heat-pipe radiator (3) between lower foreboard (5-1-2) and lower intermediate plate (5-3-2)；
The blower (12) is located at the lower section of lower layer's heat-pipe radiator (3)；
When from cold state, the preceding wind deflector (6) and rear wind deflector (7) rotate backward under the effect of gravity, in formation
Air outlet (8) behind portion advance air port (9) and middle part；The upper layer heat-pipe radiator (2) passes through middle part advance air port (9) and cabinet top
Air outlet (1) carries out heat exchange, lower layer's heat-pipe radiator (3) by air outlet (8) behind bottom of cabinet air inlet (4) and middle part into
Row heat exchange；To which upper and lower level heat-pipe radiator has mutually indepedent air duct；
When air-cooled state, wind deflector (7) rotates from the front to the back after the preceding wind deflector (6) drives, and is ultimately at upright state, this
When independent ventiduct become vertically through air duct；Cold air outside cabinet is pumped into cabinet from bottom of cabinet air inlet (4) by the blower (12)
Interior, hot-air overflows outside cabinet from cabinet top air outlet (1) in cabinet, achievees the effect that upper and lower level heat-pipe radiator is air-cooled simultaneously.
2. self-cold and hot pipe heat radiation power cabinet air duct automatic switching device according to claim 1, which is characterized in that before described
The shape of wind deflector (6) and rear wind deflector (7) is arc-shaped.
3. self-cold and hot pipe heat radiation power cabinet air duct automatic switching device according to claim 2, which is characterized in that before described
The curvature of wind deflector (6) and rear wind deflector (7) is 1/R, and radian α, arc width is α/2 2Rsin.
4. self-cold and hot pipe heat radiation power cabinet air duct automatic switching device according to claim 3, which is characterized in that the arc
It is wider than the lower foreboard top (5-1-2) and the lower end upper mid plate (5-3-1) catercorner length.
5. self-cold and hot pipe heat radiation power cabinet air duct automatic switching device according to claim 1, which is characterized in that before described
Wind deflector (6) and rear wind deflector (7) are all made of hard PVC production.
6. self-cold and hot pipe heat radiation power cabinet air duct automatic switching device according to claim 1, which is characterized in that before described
Wind deflector (6) and rear wind deflector (7) lower end pass through bearing (11) and are mounted on lower foreboard (5-1-2) and lower intermediate plate (5-3-2)
Top.
7. self-cold and hot pipe heat radiation power cabinet air duct automatic switching device according to claim 1, which is characterized in that before described
Wind deflector (6), rear wind deflector (7) are connect by bearing (11) with front and back wind deflector connecting rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338521.1A CN107196526B (en) | 2017-05-12 | 2017-05-12 | A kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338521.1A CN107196526B (en) | 2017-05-12 | 2017-05-12 | A kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107196526A CN107196526A (en) | 2017-09-22 |
| CN107196526B true CN107196526B (en) | 2019-03-19 |
Family
ID=59872606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710338521.1A Active CN107196526B (en) | 2017-05-12 | 2017-05-12 | A kind of self-cold and hot pipe heat radiation power cabinet air duct automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107196526B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006050742A (en) * | 2004-08-03 | 2006-02-16 | Toshiba Corp | Forced air-cooling power converter and electric motor car |
| CN201163744Y (en) * | 2007-07-26 | 2008-12-10 | 黄大可 | Natural refrigeration and auxiliary air cooling automatic switching heat-exchanger |
| CN202109610U (en) * | 2011-05-24 | 2012-01-11 | 宝山钢铁股份有限公司 | Draft cooling device for electrical room with high-voltage frequency converter |
| CN203086321U (en) * | 2013-02-01 | 2013-07-24 | 株洲南车时代电气股份有限公司 | Air-cooling auxiliary current transformer cabinet |
| CN204316303U (en) * | 2014-11-03 | 2015-05-06 | 浙江海得新能源有限公司 | A kind of current transformer power cabinet |
-
2017
- 2017-05-12 CN CN201710338521.1A patent/CN107196526B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006050742A (en) * | 2004-08-03 | 2006-02-16 | Toshiba Corp | Forced air-cooling power converter and electric motor car |
| CN201163744Y (en) * | 2007-07-26 | 2008-12-10 | 黄大可 | Natural refrigeration and auxiliary air cooling automatic switching heat-exchanger |
| CN202109610U (en) * | 2011-05-24 | 2012-01-11 | 宝山钢铁股份有限公司 | Draft cooling device for electrical room with high-voltage frequency converter |
| CN203086321U (en) * | 2013-02-01 | 2013-07-24 | 株洲南车时代电气股份有限公司 | Air-cooling auxiliary current transformer cabinet |
| CN204316303U (en) * | 2014-11-03 | 2015-05-06 | 浙江海得新能源有限公司 | A kind of current transformer power cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107196526A (en) | 2017-09-22 |
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