CN106659088A - High-power device heat dissipating structure of wind power pitch control system - Google Patents
High-power device heat dissipating structure of wind power pitch control system Download PDFInfo
- Publication number
- CN106659088A CN106659088A CN201710005086.0A CN201710005086A CN106659088A CN 106659088 A CN106659088 A CN 106659088A CN 201710005086 A CN201710005086 A CN 201710005086A CN 106659088 A CN106659088 A CN 106659088A
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- China
- Prior art keywords
- pitch control
- power device
- heat dissipating
- substrate
- radiating tube
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Classifications
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- 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
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
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- 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
- H05K7/20927—Liquid coolant without phase change
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a high-power device heat dissipating structure of a wind power pitch control system. A high-power device is arranged on a heat dissipating plate and is installed in a pitch control cabinet, the pitch control cabinet is installed in a wheel hub of a wind generating set, the main body of the heat dissipating plate is a substrate, the substrate is a rectangular cavity body enclosed by the following six surfaces: upper, lower, left, right, front and back, heat dissipating pipes are densely distributed in the cavity, and the heat dissipating pipes are laminated with the upper and lower surfaces of the substrate; cooling liquid is arranged in the heat dissipating pipes, the heat dissipating pipes are not filled with the cooling liquid to form air cavities in the heat dissipating pipes, and the cooling liquid can flow in the heat dissipating pipes when the heat dissipating pipes rotate with the wheel hub due to the existence of the air cavities. The high-power device heat dissipating structure of the wind power pitch control system disclosed by the invention is conducive to changing various defects of the heat dissipating of the traditional cooling plate, provides a brand new cooling and heat dissipating modes, improves the uniform distribution ability of heat on the substrate and achieves an excellent heat dissipating effect.
Description
Technical field
The present invention relates to field of wind power equipment, is specifically related to a kind of variable propeller pitch control high power device and dissipates
Heat structure.
Background technology
Wind energy is of great interest as pollution-free, the reproducible energy, and fast development, sends out in China's wind-force
Electricity has vast potential for future development.In recent years, wind power generating set experienced from tens kilowatts to hundreds of kilowatt to several megawatts
Develop rapidly, powerful wind power generating set is higher to the functional requirement of pitch-controlled system.Blade control planning is to whole wind-powered electricity generation
The safety of unit, therefore the reliability of blade control device is particularly important, before blade returns to home, it is necessary to assure
Drive the system operation of blade perfectly safe, and the heat dissipation problem for becoming high power device in oar cabinet affects variable blade control system
Performance, life-span etc..
High power device in variable blade control system mainly has charger, driver etc.；These high power devices are placed in
Inside pitch control cabinet, pitch control cabinet is placed in the wheel hub of wind power generating set, and the rotation with wheel hub is rotated.By
The radiating of the high power device in the restriction of its use environment, current variable blade control system is based on heat sink radiating.
Traditional scheme one is to use aluminium heat sink, is aided with the circulation of aerofoil fan increase air, to improve radiating efficiency.It is this
The drawbacks of scheme is that the service life of aerofoil fan only has 2 to 3 years, it is impossible to meet 20 years wind power generating set projected lives
Need, aerofoil fan need to be regularly changed, so as to have impact on the operation of the whole machine of wind power generating set.
Traditional scheme two is to cancel axial flow blower, the area of heat sink is increased, to improve the table of heat sink and air contact
Area is reaching radiating effect.This scheme there is also drawback, because power device only occupies the sub-fraction of heat sink, dissipate
The area of hot plate is increased, and in theory its area of dissipation and radiating effect can reach, but during practice, power
The temperature of surrounding's heat sink in device contacts face is very high, very low away from the heat sink portion temperature of device, takes away with air contact
Thermal Finite, it is impossible to meet cooling requirements, when radiate plate temperature it is too high when, variable blade control system can quit work, affect wind
The operation of power generator group.
For the problem that prior art is present, a kind of operation for not affecting the whole machine of wind power generating set is createed, and can be expired
The radiator structure of sufficient variable propeller pitch control high power device cooling requirements is the problem to be solved at present.
The content of the invention
For deficiencies of the prior art, it is an object of the invention to propose that a kind of variable propeller pitch control is big
Power device radiating structure, it improves heat equally distributed ability on substrate, reaches excellent radiating effect.
The technical scheme is that what is be achieved in that：
A kind of variable propeller pitch control high-power device heat dissipation structure, high power device is arranged on heat sink and is installed on change
Inside oar switch board, pitch control cabinet is arranged in wind generator unit wheel hub, it is characterised in that：The main body of the heat sink is
Substrate, the substrate is the cuboid cavity body structure surrounded by upper and lower, left and right, six surfaces of front and rear, close in cavity
Radiating tube is furnished with, radiating tube is fitted with substrate upper and lower surface simultaneously；Coolant, coolant underfill are provided with the radiating tube
Radiating tube is so as to form air chamber, the presence of the air chamber makes radiating tube to radiate with coolant during hub rotation in radiating tube
Bottomhole pressure.
This variable propeller pitch control high-power device heat dissipation structure is a kind of novel radiator structure, and it rationally make use of
Wind power generating set becomes the environment residing for slurry control system high power device to solve its heat dissipation problem.Wind generator unit wheel hub
During rotation, the pitch control cabinet being arranged in wind generator unit wheel hub is rotated simultaneously, when pitch control cabinet is rotated, is arranged at change
Radiating tube inside oar switch board is rotated simultaneously.During radiating tube underfill coolant there is air chamber, radiating tube rotation in Guan Zhonghui
When, liquid can be in the radiating Bottomhole pressure for having air chamber, so as to drive heat circulation to each position of substrate.
Further, coolant volume of the present invention is the 30% ~ 70% of radiating tube hole internal volume.
Further, upper surface of base plate of the present invention is provided with fin, the lower surface connection high power device of substrate.
Further, fin of the present invention is splintery, and fin is evenly distributed on the upper surface of substrate.On substrate
Fin can accelerate radiating rate, reach excellent radiating effect.
Further, radiating tube of the present invention is kink of curve structure, and radiating tube is evenly distributed in the inner chamber of substrate.
Radiating tube increases the contact area of radiating tube and substrate using kink of curve structure, and heat transfer effect is good.
Further, radiating tube of the present invention includes being provided with the closed circular structure outer ring of two protrusion interfaces, described
The horizontal arm that some two ends and outer ring interconnect is provided with outer ring.
Further, radiating tube two ends of the present invention are provided with plug, and the plug and radiating tube are threadedly coupled.Radiating tube
The plug at two ends will be opened when coolant is poured, it can be ensured that coolant is smoothly poured in radiating tube.
Further, radiating tube of the present invention adopts copper material.The radiating effect of copper material is excellent, is widely used radiating
Tubing matter.
Further, substrate of the present invention scribbles heat-conducting silicone grease with high power device contact surface.Heat-conducting silicone grease had both had excellent
Electrical insulating property, have excellent heat conductivity again, at the same have low freedom, high-low temperature resistant, water-fast, ozone, weather-resistant etc.
Advantage.
Further, substrate of the present invention is provided with installing hole.Installing hole around substrate is used for substrate to be fixed on
In pitch control cabinet, installing hole of the base lower surface near middle part is used for fixing charger and driver.
Compared to existing technology, the beneficial effects are mainly as follows：
1st, the present invention is a kind of novel radiator structure, and it adds by the way of radiating tube and fin are combined in radiating tube
Enter coolant, coolant underfill radiating tube is so as to form air chamber in radiating tube.Drive during the rotation of hub of wind power generator
Radiating tube rotates together, the presence of the air chamber make radiating tube with coolant during hub rotation can in radiating Bottomhole pressure, so as to
Heat circulation is driven to each position of substrate, rationally make use of wind power generating set to become slurry control system high power device institute
The environment at place is solving its heat dissipation problem.
2nd, aerofoil fan is eliminated, reduces wind power generating set maintenance time, improve whole machine generating efficiency.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the radiation tube structure with heat schematic diagram of the embodiment of the present invention one；
Fig. 4 is the radiation tube structure with heat schematic diagram of the embodiment of the present invention two；
Fig. 5 is the pitch-controlled system structural representation of the embodiment of the present invention.
In accompanying drawing, 1- substrates；2- radiating tubes；3- fin；4- plugs；5- installing holes；6- chargers；7- drivers；8-
Pitch-controlled system；81- pitch control cabinets；82- motor；83- change speed gear boxes；84- blades.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in detail.
As shown in Figure 1 to Figure 3, a kind of variable propeller pitch control high-power device heat dissipation structure of the present embodiment, including
Substrate 1, radiating tube 2 and fin 3；The substrate 1 is the cuboid surrounded by upper and lower, left and right, six surfaces of front and rear
Cavity body structure, is densely covered with the radiating tube 2 of kink of curve structure in cavity, and radiating tube 2 is fitted with the upper and lower surface of substrate 1 simultaneously,
The kink of curve structure that radiating tube 2 is adopted increases the contact area of radiating tube 2 and substrate 1, and heat transfer effect is good.It is described to dissipate
The coolant of the hole internal volume half of radiating tube 2 is provided with heat pipe 2, coolant underfill radiating tube 2 in radiating tube 2 so as to form
Air chamber, the presence of the air chamber makes radiating tube 2 to flow in radiating tube 2 with coolant during hub rotation.The two ends of radiating tube 2
Female thread is provided with, plug 4 is provided with external screw thread, and radiating tube 2 and plug 4 are threadedly coupled, and plug 4 will be beaten when coolant is poured
Open, it can be ensured that coolant is smoothly poured in radiating tube 2.Fin 3 is the splintery knot of the upper surface for being evenly distributed on substrate 1
Structure, the lower surface connection charger 6 of substrate 1 and driver 7, substrate 1 is scribbled and both had with charger 6 and the contact surface of driver 7
Excellent electrical insulating property, there is excellent heat conductivity again, while having low freedom, high-low temperature resistant, water-fast, ozone, weatherability are old
The heat-conducting silicone grease of the advantages of change.Installing hole around substrate 1 is used for substrate 1 to be fixed in pitch control cabinet 81, the following table of substrate 1
Installing hole 5 of the face near middle part is used for fixing charger 6 and driver 7.
As shown in figure 4, the structural representation of radiating tube 2 of the embodiment of the present invention two, the outer ring of radiating tube 2 is to be provided with two protrusions
The closed circular structure of interface, outer ring is provided with some lattice-shapeds by being interconnected to form after two copper pipe bendings in outer ring
The copper pipe of horizontal copper pipe, horizontal copper pipe two ends and outer ring is interconnected, and is cooled down liquid energy and is quickly flowed in the copper pipe of connection, its stream
Path is shorter, and fully flowing does not cause uneven, this enforcement of radiating to liquid when preventing blade 84 from rotating very fast in radiating tube
The suitable blade 84 of example rotates wind power generating set faster and uses.
As shown in figure 5, large-scale wind generating set pitch control system 8 includes pitch control cabinet 81, motor 82, change speed gear box
83 and blade 84；Each blade 84 configures a pitch control cabinet 81, motor 82 and change speed gear box 83, and pitch-controlled system 8 is by becoming
Oar switch board 81 controls motor 82 and change speed gear box 83 drives blade 84 to complete to become oar action.
This variable propeller pitch control high-power device heat dissipation structure is a kind of novel radiator structure, and it rationally make use of
Wind power generating set becomes the environment residing for the slurry high power device of control system 8 to solve its heat dissipation problem.Wind power generating set wheel
When hub is rotated, the pitch control cabinet 81 being arranged in wind generator unit wheel hub is rotated simultaneously, when pitch control cabinet 81 is rotated, if
The radiating tube 2 for being placed in 81 in pitch control cabinet is rotated simultaneously.During 2 underfill coolant of radiating tube there is air chamber in Guan Zhonghui,
When radiating tube 2 rotates, liquid can flow in the radiating tube 2 for having air chamber, so as to drive heat to circulate to each of substrate 1
Position, the heat on substrate 1 is quickly distributed by fin 3, reaches excellent radiating effect.
The variable propeller pitch control high-power device heat dissipation structure of the present invention uses three below side in the environment of 31 DEG C
Case is tested：
Scheme one：Using without radiating tube 2（Copper pipe）With the common heat-radiating substrate of coolant, in the state of aerofoil fan is not used
And the state of wind-driven generator simulation group running status, i.e. substrate 1 when rotating with wheel hub in the pitch control cabinet 81.
Scheme two：Using the substrate 1 of the present embodiment, in the state of aerofoil fan is not used, the inside of substrate 1 paving radiating tube
2（Copper pipe）And full of coolant, while wind-driven generator simulation group running status, i.e. substrate 1 are interior with wheel in pitch control cabinet 81
State when hub is rotated together.
Scheme three：Using the substrate 1 of the present embodiment, in the state of aerofoil fan is not used, the inside of substrate 1 paving radiating tube
2（Copper pipe）And the coolant for managing interior 1/2 volume is filled with, while wind-driven generator simulation group running status, i.e. substrate 1 are becoming oar control
State when rotating with wheel hub in cabinet processed 81.
As shown in Fig. 2 the temperature monitoring point of wherein A points and B points for the lower surface of substrate 1, C points are the internal temperature of charger 6
Sensor monitoring point, D points are the internal temperature sensor monitoring point of driver 7.
| Sequence number | Temperature monitoring point | Scheme one | Scheme two | Scheme three |
| 1 | A point temperature（℃） | 36 | 40 | 48 |
| 2 | B point temperature（℃） | 60 | 55 | 51 |
| 3 | C point temperature（℃） | 65 | 60 | 54 |
| 4 | D point temperature（℃） | 70 | 66 | 59 |
The radiating effect of this radiator structure is tested, result in upper table, wherein scheme three are drawn by three above test
Radiating it is uniform, effect preferably, fully demonstrates the feasibility and reasonability of the present invention.Present invention eliminates wind electricity change paddle control
The aerofoil fan of system high-power device heat dissipation structure, solves charger 6 and the heat dissipation problem of driver 7, reduces wind-force and sends out
Group of motors maintenance time, improves whole machine generating efficiency.For the theory that wind-powered electricity generation becomes the high power device radiating of slurry control system is ground
Study carefully has good reference value and reference with practical application.
It is last it should be noted that above example is only unrestricted to illustrate technical scheme, although Shen
Ask someone to be described in detail the present invention with reference to preferred embodiment, it will be understood by those within the art that, to this
Bright technical scheme is modified or equivalent, without deviating from the objective and scope of the technical program, all should be covered at this
In the middle of the right of invention.
Claims (10)
1. a kind of variable propeller pitch control high-power device heat dissipation structure, high power device is arranged on heat sink and is installed on
Inside pitch control cabinet, pitch control cabinet is arranged in wind generator unit wheel hub, it is characterised in that：The main body of the heat sink
For substrate, the substrate is the cuboid cavity body structure surrounded by upper and lower, left and right, six surfaces of front and rear, in cavity
Radiating tube is densely covered with, radiating tube is fitted with substrate upper and lower surface simultaneously；Coolant is provided with the radiating tube, coolant is not filled
Full radiating tube is so as to form air chamber, the presence of the air chamber makes radiating tube to dissipate with coolant during hub rotation in radiating tube
Hot Bottomhole pressure.
2. variable propeller pitch control high-power device heat dissipation structure according to claim 1, it is characterised in that：It is described cold
But liquid product is the 30% ~ 70% of radiating tube hole internal volume.
3. variable propeller pitch control high-power device heat dissipation structure according to claim 1, it is characterised in that：The base
Plate upper surface is provided with fin, the lower surface connection high power device of substrate.
4. variable propeller pitch control high-power device heat dissipation structure according to claim 3, it is characterised in that：It is described to dissipate
Backing is splintery, and fin is evenly distributed on the upper surface of substrate.
5. variable propeller pitch control high-power device heat dissipation structure according to claim 1, it is characterised in that：It is described to dissipate
Heat pipe is kink of curve structure, and radiating tube is evenly distributed in the inner chamber of substrate.
6. variable propeller pitch control high-power device heat dissipation structure according to claim 1, it is characterised in that：It is described to dissipate
Heat pipe includes being provided with the closed circular structure outer ring of two protrusion interfaces, some two ends is provided with the outer ring and outer ring is mutual
The horizontal arm being connected.
7. variable propeller pitch control high-power device heat dissipation structure according to claim 1, it is characterised in that：It is described to dissipate
Heat pipe two ends are provided with plug, and the plug and radiating tube are threadedly coupled.
8. variable propeller pitch control high-power device heat dissipation structure according to claim 1, it is characterised in that：It is described to dissipate
Heat pipe adopts copper material.
9. variable propeller pitch control high-power device heat dissipation structure according to claim 1, it is characterised in that：The base
Plate scribbles heat-conducting silicone grease with high power device contact surface.
10. variable propeller pitch control high-power device heat dissipation structure according to claim 1, it is characterised in that：It is described
Substrate is provided with installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005086.0A CN106659088B (en) | 2017-01-04 | 2017-01-04 | A kind of variable propeller pitch control high-power device heat dissipation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005086.0A CN106659088B (en) | 2017-01-04 | 2017-01-04 | A kind of variable propeller pitch control high-power device heat dissipation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106659088A true CN106659088A (en) | 2017-05-10 |
| CN106659088B CN106659088B (en) | 2018-12-04 |
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ID=58842693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710005086.0A Active CN106659088B (en) | 2017-01-04 | 2017-01-04 | A kind of variable propeller pitch control high-power device heat dissipation structure |
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Citations (8)
| 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 |
| CN203708738U (en) * | 2014-01-03 | 2014-07-09 | 重庆舸海机电有限公司 | Charging power supply heat radiation device used for wind power pitch changing control system |
| CN104065209A (en) * | 2014-06-20 | 2014-09-24 | 许昌学院 | Wind power generation device |
| CN204082456U (en) * | 2014-09-23 | 2015-01-07 | 新疆金风科技股份有限公司 | The cabin of wind power generating set |
| CN104266516A (en) * | 2014-09-18 | 2015-01-07 | 南京工业大学 | Irregularly-shaped rotary heat pipe applicable to various rotation speeds |
| CN104421109A (en) * | 2013-08-19 | 2015-03-18 | 苏州能健电气有限公司 | Heat dissipation device for wind power pitch control system |
| CN205491618U (en) * | 2016-03-14 | 2016-08-17 | 镇江市长虹散热器有限公司 | Radiating fin |
| CN205744310U (en) * | 2016-06-24 | 2016-11-30 | 北京金风科创风电设备有限公司 | Blade of wind-driven generator, blade de-icing device and wind power generating set |
-
2017
- 2017-01-04 CN CN201710005086.0A patent/CN106659088B/en active Active
Patent Citations (8)
| 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 |
| CN104421109A (en) * | 2013-08-19 | 2015-03-18 | 苏州能健电气有限公司 | Heat dissipation device for wind power pitch control system |
| CN203708738U (en) * | 2014-01-03 | 2014-07-09 | 重庆舸海机电有限公司 | Charging power supply heat radiation device used for wind power pitch changing control system |
| CN104065209A (en) * | 2014-06-20 | 2014-09-24 | 许昌学院 | Wind power generation device |
| CN104266516A (en) * | 2014-09-18 | 2015-01-07 | 南京工业大学 | Irregularly-shaped rotary heat pipe applicable to various rotation speeds |
| CN204082456U (en) * | 2014-09-23 | 2015-01-07 | 新疆金风科技股份有限公司 | The cabin of wind power generating set |
| CN205491618U (en) * | 2016-03-14 | 2016-08-17 | 镇江市长虹散热器有限公司 | Radiating fin |
| CN205744310U (en) * | 2016-06-24 | 2016-11-30 | 北京金风科创风电设备有限公司 | Blade of wind-driven generator, blade de-icing device and wind power generating set |
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| Publication number | Publication date |
|---|---|
| CN106659088B (en) | 2018-12-04 |
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Effective date of registration: 20190114 Address after: 401133 No. 31 Changhe Road, Yuzui Town, Jiangbei District, Chongqing Patentee after: Chongqing Huazhao Electrical Equipment Co., Ltd. Address before: 401133 No. 31 Changhe Road, Yuzui Town, Jiangbei District, Chongqing Patentee before: CHONGQING HUAYU HEAVY INDUSTRY ELECTROMECHANICAL CO., LTD. |