CN204783473U - A become oar driver, cooling device and wind power generation equipment for rotor blade of wind power generation equipment - Google Patents
A become oar driver, cooling device and wind power generation equipment for rotor blade of wind power generation equipment Download PDFInfo
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- CN204783473U CN204783473U CN201420681324.1U CN201420681324U CN204783473U CN 204783473 U CN204783473 U CN 204783473U CN 201420681324 U CN201420681324 U CN 201420681324U CN 204783473 U CN204783473 U CN 204783473U
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- 238000001816 cooling Methods 0.000 title claims abstract description 101
- 238000010248 power generation Methods 0.000 title abstract 6
- 238000007599 discharging Methods 0.000 claims abstract description 4
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- 238000009434 installation Methods 0.000 claims description 22
- 230000005855 radiation Effects 0.000 claims description 11
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- 239000012774 insulation material Substances 0.000 claims description 2
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- 238000004146 energy storage Methods 0.000 abstract description 6
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- 230000002349 favourable effect Effects 0.000 description 3
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- 239000004033 plastic Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 210000000529 third trochanter Anatomy 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
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- 230000005518 electrochemistry Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a rotor blade's of wind power generation equipment change oar driver, cooling device and wind power generation equipment, it includes motor (22) and is used for temporarily into the electrochemical that becomes the power supply of oar driver or the energy storage ware (18 of electrostatics wherein to become the oar driver, 30 ), wherein energy storage ware (30) are equipped with holding device (40) and contact with including a plurality of cooling device (26) direct heat conduction ground that cool off components, a heat for cooling off produced energy storage ware (30) when energy storage ware (30) charging and discharging and when wind power generation equipment (1) moves, and discharge the heat with the help of heat release (30). Stipulate here in order to improve the heat transfer that cooling device (26) have be independent of energy storage ware (30) fixed supporting arrangement (49) on fixed position (48, 34) on machinery, wherein, supporting arrangement (49) are including device (46, 44, 42) between cooling device (26) and fixed position (48). The utility model discloses still relate to a wind power generation equipment.
Description
Technical field
The utility model relates to a kind of variable pitch driver for wind power plant.The technical solution of the utility model also relates to electrochemical or electrostatic, the cooling unit of accumulator for temporarily powering for variable pitch driver on the holding device on a kind of fixed position for being fixed on wind power plant, and a kind of wind power plant being equipped with above-mentioned variable pitch driver.
Background technique
Use electric adjustment driver to regulate the angle of attack of one or more rotor blades of wind power plant for the wind of effect, its Power supply is produced by generator by external electrical network or in inside.This driver is commonly referred to variable pitch driver, and this blade adjusting systems is called pitch-controlled system.
When Power supply interruption or fault, variable pitch driver has additional electrochemical or electrostatic accumulator, and described accumulator keeps the Power supply temporary transient to driver in this case.As accumulator normally can the storage battery (battery pack) of recharge or so-called super capacitor, these accumulators are arranged on the default fixed position being arranged in wind power plant by holding device.Based on embedded location, accumulator has independently housing and being also placed in most cases in independent switch cubicle (accumulator tank).Because accumulator is the part of variable pitch driver, when then they are most of but be not definitely be arranged in the rotary component (wheel hub or rotor) of wind power plant, or also can be arranged on the outer wall of the control cabinet (converter cabinet) of motor for the housing of accumulator, described motor same most of time be arranged in the rotary component of wind power plant.Two cabinets (accumulator tank and converter cabinet) are interconnected with control box arrangement in most cases.
Electrochemical accumulator apparatus (storage battery or super capacitor) has the chemism of increase when temperature raises, this chemism result in the life-span less desirable shortening of device, wherein, the life-span depends on that again the temperature on the running temperature expected raises.And the running temperature normally room temperature expected.Known storage battery or similar accumulator apparatus are cooled by convection current, and method is that described device is surrounded by air and flows through.Air is again by preferably including the cooling unit cooling of multiple cooling element.But this solution has shortcoming, namely aerial water vapour needs very high energy ezpenditure to be condensed into liquid form because in environment air be cooled to below dew point.Which has limited the efficiency of this cooling unit.
Document DE-A-102012205255 shows a kind of Emergency power supply unit with accumulator for wind power plant, it is almost surrounded by housing completely, wherein, described housing has groove at least one position, and heating and cooling element is arranged in described groove.
Known by document DE-A-102007016023, arrange in variable pitch driver in draft power power generating equipment or the heat expelling installation of peltier-element form, for the air be heated is discharged in environment by draft power power generating equipment or cooling unit.But the medium being only used as ventilating air to discharge the heat produced in accumulator is inadequate, what therefore especially produced by loss heat in accumulator is needed larger cooling power, such as by peltier-element or other electrothermal conversioning elements by the water vapour heated.
Document EP-A-1791413 illustrates a kind of switch cubicle, wherein except other devices also arrange accumulator.The outer wall of accumulator arranges peltier-element, and described peltier-element directly contacts with heat conduction with outer wall.Cooling unit comprises the spirality heat exhausting pipe of drawing from inner space on its cold side, the loss heat of inside switch cabinet or condensation heat release is discharged in environment by this spirality heat exhausting pipe.
The document WO-A-2011061016 of claimant shows a kind of electric energy accumulator, and it is fixed on support, and support is provided as the peltier-element of cooling unit, wherein peltier-element not only with accumulator but also with the direct heat transfer of support contact.But the shortcoming that accumulator and peltier-element are fixed jointly is, when accumulator opposite brackets moves, peltier-element can bear very violent mechanical load.
The direct cooling of accumulator requires between accumulator and cooling unit, have direct heat conducting contact, for keeping direction of heat flow constant towards " the hot side " of heat expelling installation from " cold side " of peltier-element all the time.But the contact of the direct heat conduction between the cooling unit remaining on accumulator by immobilising device (as bolt or bonding connection) and have multiple integrated and sensitive peltier-element has very large difficulty, its reason is, accumulator and cooling unit are not only subject to huge Thermodynamic effect, but also bear very strong mechanical load due to the rotation of rotor.
Model utility content
Technical problem to be solved in the utility model is, in the variable pitch driver of described type, sets up heat-conducting property and better contacts, wherein especially avoid the mechanical load of the rising to cooling unit between accumulator and cooler or independent cooling element.
Described technical problem is solved by a kind of variable pitch driver of the rotor blade for wind power plant, described variable pitch driver comprise motor and for lost efficacy at motor or fault time be temporarily electrochemical or electrostatic accumulator that variable pitch driver is powered, wherein, accumulator is equipped with holding device, for being fixed on the fixed position of presetting in wind power plant, and directly contact with heat conduction with the cooling unit comprising multiple cooling element, for the accumulator heat cooling when accumulator charging and discharging and produce when wind power plant runs, and by heat expelling installation, heat is discharged, wherein, cooling unit has in mechanical aspects independent of the fixing bearing device of accumulator on fixed position, wherein, described bearing device comprises device between cooling unit and fixed position, for ensureing the contact of direct heat conduction between accumulator and cooling unit.
In variable pitch driver, cooling unit has independent of the fixing bearing device of accumulator on fixed position, and wherein said bearing device constructs like this, makes the contact keeping direct heat conduction between accumulator and cooling unit.In addition, between accumulator and cooler, thermal conductive contact that is directed and continue is therefore set up.
As previously mentioned, because accumulator is the assembly of variable pitch driver, therefore the fixed position of accumulator is near the control gear (current transformer) of driver mostly, and driver equally mostly but be not arranged on utterly in the rotary component of wind power plant.
Model utility design is, the bearing device of accumulator is separated with the bearing device of cooling unit, and to keep between described parts (accumulator and cooling unit) direct simultaneously contacts, and therefore realizes the cooling of accumulator heat conduction.The mechanical load of the increase to cooling unit (described mechanical load can be formed by the possible relative movement between the fixing device of accumulator on fixed position) can be avoided by this layout.But the relative movement between cooling unit and accumulator is limited by device, described device produces " power " that continues between the independent element and accumulator of cooling unit, and mostly sensitive independent cooling element can not be made to be subject to strong mechanical load.Described " power " corresponding thermal conductive contact directly guided between the two components.Thermal conductive contact is included in the thermally conductive pathways between solid heat conductive material, wherein thermally conductive pathways has mechanical structure, described mechanical structure can move independent of the fixing device of accumulator, and therefore avoids the mechanical load in heat trnasfer when accumulator moves relative to its holding device.
In addition, heat trnasfer is also directed and be confined on the contact area between accumulator and cooling unit.Therefore the heat trnasfer out of control that pitch-controlled system may be caused to damage and lost efficacy is avoided.
In the first favourable form of implementation, described for ensureing that the device of the thermal conductive contact between accumulator and cooling unit is included in the spacer between cooling unit and fixed position, described spacer side is arranged along the direction of heat expelling installation spaced reciprocally.Compartment of terrain, multiple spacer mutual side is arranged and direction along heat expelling installation extends.Therefore loss heat is outwards guided by gap, and described gap is preferably designed for passage.The air be heated can also advantageously be blown in environment by the ventilation plant combined with cooling unit.Ventilation plant and passage are the parts of heat expelling installation.
In the form of implementation that another kind is favourable, spacer comprises elastic element.Consequent elastic force or provided by additional spring, described spring its regularly cooling unit is pressed to accumulator independent of accumulator and holding device, the spacer be made up of flexible and heat insulation material is set between the fixed position in cooling unit and wind power plant, this spacer fixing equally independent of accumulator and holding device.Spring is such as the leaf spring be arranged between fixed position and spacer, and wherein, spring stiffness both can have been adjusted when being equipped with additional spring and also can have been adjusted when not having additional spring.Cooling unit is only bearing on flexible insulator.Once be assembled with accumulator, then this accumulator to be pressed on cooling element and to extrude insulator, which in turn improves the thermal conductive contact between accumulator and cooling element thus.
In the form of implementation that another kind is favourable, described for ensureing that the device of the thermal conductive contact between accumulator and cooling unit comprises intermediary element, described intermediary element is connected by fixed block constantly with cooling unit, but wherein cooling unit be fixed on fixing independent of accumulator of mechanical aspects.Can not need to use (flexible) spacer by this layout.Accumulator is bearing in intermediary element, and intermediary element is designed for again housing or the groove basin of accumulator.The housing or the groove basin that intermediary element are designed for accumulator have such advantage, and namely accumulator can be replaced, and need not unclamp from its fixing on fixed position.
The utility model also comprises accumulator apparatus, and it comprises multiple accumulator element be arranged side by side, and wherein each element and cooling unit set up thermal conductive contact.Described device is also arranged in housing or groove basin (cell jar basin).In order to reliably be fixed on the fixed position of wind power plant, this device is arranged in cabinet (accumulator tank) with its housing, and described cabinet is arranged near the electric control unit (converter cabinet) of variable pitch driver mostly.In enclosure interior, multiple independent accumulator element is bearing on support plate, and support plate can be the parts of housing or groove basin.Therefore independent accumulator element can be changed individually, and housing need not be unclamped from it is fixing.This housing keeps the fixing of its side.
On the fixed position at accumulator and holding device, form heat conduction out of control, be proved advantageously, the insulator sidepiece of accumulator arranges adiabatic insulator between accumulator and holding device, being such as made of plastics.Two insulators then by immobilising device, if bolt or similar device are jointly by fixing.The plastics with corresponding mechanical property that the material recommendation being applicable to insulator is made up of PVC (PVC＝polyvinyl chloride).
Only need to unclamp the fixing of side to change accumulator, whole battery pack or cell jar basin, thus whole device can be changed.Accumulator and the contact area of the bearing device of support plate and cooling unit and compressive resilience if desired can not be related to, therefore can also ensure that the heat-conducting property in the direction along heat expelling installation is constant after changing whole accumulator.
The cooling unit comprising multiple cooling element is preferably made up of cold radiation plate and Heat sink stepped construction, and wherein, cold radiation plate contacts with accumulator, and Heat sink is the parts of heat expelling installation.The advantage of the plate shape form of implementation of cooling unit is, the area that the combined covering of plate accumulator is very large, and therefore can economical space saving be arranged in accumulator or accumulator tank.
Cold radiation plate is preferably for generation of the electrothermal conversioning element (heat exchanger) of temperature difference, and wherein conversion element preferably so-called peltier-element, described peltier-element is arranged between cold radiation plate and Heat sink.They other conversion elements can certainly be used, as long as can produce the temperature difference of required 30K to 40K.The good sheet metal of preferred conductivity is used as the material of the plate exporting cold, and wherein aluminium is most suitable in price, weight and thermal conductivity.
The material of the Heat sink preferably same material excellent by heat-conducting property, aluminium as extruded is formed.Described plate contacts with heat expelling installation, and the loss heat dissipation that accumulator produces by described heat expelling installation is in environment.In a kind of form of implementation of tube shaped, the Heat sink of cooling element preferably forms the upside of air passageways, and by described upside, loss heat can be discharged by aforementioned ventilation plant.In order to better by heat dissipation on heat expelling installation, Heat sink can have cooling fin on the downside of it.
Plate shape cooling element is preferably arranged in the baseplate zone of accumulator, because produce the highest loses heat in this region and accumulator in groove basin or cabinet or battery pack are connected with holding device under the overwhelming majority in baseplate zone.The base plate of battery pack or independent accumulator element arranges support plate, and therefore described support plate directly contacts with cooling element.When being designed to plate shaped element part, support plate is cold radiation plate.Therefore accumulator directly presses over the plates, and achieves to the direct heat trnasfer of Heat sink.
No matter as a supplement still it is noted that be that the cold radiation plate of cooling element or the plate of discharge heat can be divided into multiple sections, for improving thermo-contact.Described plate is therefore in conjunction with the already described form of implementation as spacer or combine the already described equally form of implementation with intermediary element and realize.
Recommend at this, multiple special thermoelectric conversion element (such as peltier-element) is used to accumulator, and described accumulator is arranged in the cooling element of plate shape.In addition each accumulator element also should be isolated independently of each other, therefore cooled air stream can not exchange with other accumulator elements, therefore avoid producing water vapour, and water vapour sometimes may condensation, and cause inefficacy or the damage of single accumulator or whole variable pitch driver.
The utility model also relates to a kind of for being fixed on electrochemistry on holding device or electrostatic, for temporarily powering for variable pitch driver the cooling unit of accumulator (in already described all forms of implementation).
In addition the utility model also relates to a kind of wind power plant, and it comprises the rotor with rotor blade that is outstanding and that can regulate around axis of runner blade, and wherein, rotor blade is regulated by the variable pitch driver in all already described forms of implementation.
Accompanying drawing explanation
Other feature and advantage of the present utility model are drawn by the following explanation to embodiment.In the accompanying drawings:
Fig. 1 illustrates the signal form of implementation of wind power plant;
Fig. 2 schematically shows the action principle of variable pitch driver;
Fig. 3 illustrates the accumulator for the variable pitch driver according to Fig. 2 in open stereogram mode, and described accumulator has multiple accumulator element and integrated cooling unit;
Fig. 4 illustrates the accumulator according to Fig. 3, and it is arranged in the cabinet by closed with covers;
Fig. 5 illustrates the longitudinal section of the first form of implementation of the cooling unit of the accumulator according to Fig. 3;
Fig. 6 illustrates the modification of the cooling unit according to Fig. 5;
Fig. 7 illustrates other forms of implementation of the accumulator according to Fig. 3.
Embodiment
By Fig. 1, wind power plant 1 is shown, wherein, be connected with machine clamshell on its end away from pedestal 2 at setting tower cylinder 3 on the base 2, described machinery cover is usually also referred to as cabin 4.Frame 5 is set in cabin 4, rotor 6 rotor axle 7 can be rotated to support in described frame 5, two visible rotor blades 9 and 10 that rotor 6 has rotor hub 8 and is connected with rotor hub, rotor blade is connected with wheel hub 8 by respective blade bearing, and can rotate around their axis of runner blade 11,12 relative rotor wheel hub 8 respectively.Each rotor blade 9,10 and adjusting driver (variable pitch driver) 13,14 machinery are coupled, rotor blade 9,10 can be made to rotate (hereinafter referred to as change oar) around respective axis of runner blade 11 and 12 by described adjusting driver, and be coupled with generator 16 machinery, generator 16 to be arranged in cabin 4 and to be fixed in frame 5, and the major part of the wind-force 15 acted on each rotor blade is converted into electric energy.In order to the controlled operation of wind power plant 1, wind power plant controller 17 is set, can also regulating and controlling driver 13,14 by described controller.
Wind power plant 1 also has sightless third trochanter blade usually, and this third trochanter blade has the variable pitch driver for regulating this rotor blade equally, corresponding with other drivers.As alternative and unshowned equally, replace three independent drivers, wind power plant 1 also can have the central variable pitch driver be arranged in wheel hub 8.
Fig. 2 illustrates the action principle of the variable pitch driver 13 for rotor blade 9 schematically.This driver mainly comprises accumulator 18, accumulator by switch 19 and with switch in parallel be connected with converter cell 21 by rectifier diodes 20, converter cell controls actuating motor 22, actuating motor is powered by the AC network 23 of outside when switch 19 disconnects, wherein, in the view of Fig. 2, current transformer comprises rectifier 24 and inverter 25.Are Wechselstrommotors at this actuating motor 22, can rotate around its axis of runner blade 11 by regulating rotary blades 9 by this Wechselstrommotor.Only need correspondingly to revise converter topology unit 21 when using direct current motor.
The action principle of driver 13 is as follows: electrical network 23 or other external power supplys lost efficacy or fault time then close switch 19, and temporarily to be powered by accumulator 18, thus can ensure, rotor blade can not be out of control in failure condition.Then by wind power plant controller 14 (see Fig. 1), rotor blade is adjusted to home (such as in so-called feather position).
Produce loss heat at accumulator 18 charging and discharging and when running, loss heat especially causes the fault of accumulator 18 or the power of reduction because of condensed water.Be in the environment that this reason needs to cool accumulator 18.This is realized by the cooling unit 26 of attaching troops to a unit in accumulator 18, also can further illustrate the structure of cooling unit in following accompanying drawing illustrates.
Accumulator 18 is such as can the storage battery of recharge or battery, and the charger of wherein attaching troops to a unit in storage battery does not illustrate.
As shown schematically in figure 3, accumulator 18 comprises multiple accumulator element 30 be arranged side by side.Each element 30 directly contacts with heat conduction with cooling unit 26, also can set forth further in the description of the drawings as it is following.
Four elements 30 shown in Figure 3.Element 30 is surrounded by housing 27 together with the cooling unit 26 being designed to plate again, and especially as shown in Figure 4, housing can form again the cabinet 28 of box-shaped.The cooling unit 26 of plate shape directly contacts with heat conduction with accumulator 18 or independent accumulator element 30.But accumulator 18 independent of its in the rotor 6 of wind power plant 1 (with reference to Fig. 1), fixing in figure 3 on unshowned fixed position 48.
The cooled loss heat of cabinet 28 is discharged in environment by ventilation plant 31 by passage shape heat expelling installation 32, as it is in figure 3 by shown in arrow, is therefore circulated forcibly at the environment of housing 27 inside.Heat expelling installation 32 is integrated in cooling unit 26, also can set forth further below same.
Cabinet 28 is in the diagram also referred to as accumulator tank, and accumulator tank thereon side has closed lid 29.Its visible side members illustrates the electric connection 33 for converter cell 21.The track 34 that whole cabinet 28 is arranged two longitudinal directions along cabinet is bearing on fixed position 26, and be jointly fixed in this way in rotor hub 8 in this form of implementation, and be fixed near converter cell 21, converter cell is designed to cabinet equally and is therefore called current transformer box.
The longitudinal section of the first form of implementation of the plate shape cooling unit 26 of corresponding diagram 3 is shown by Fig. 5.Six accumulator elements 30 be arranged side by side are illustrated.All elements 30 are bearing on common support plate 39 with its bottom side, and described element 30 forms direct heat transfer with cooling element 26.Support plate 39 is parts of housing 27, and this housing fully surrounds accumulator 18.
Plate shape cooling element 26 comprises towards accumulator cold radiation plate 35 and the Heat sink 36 towards heat expelling installation 32 setting, and described plate is called as " cold " plate or " heat " plate following.Hot plate 36 has cooling fin 45 on its side towards heat expelling installation 32.
Thermoelectric conversion element 37 or peltier-element are set between two plates, thus the loss heat be cooled is conducted towards heat expelling installation 32 by " heat " plate 36, heat is discharged in environment by passage 38 by ventilation plant 31 (see Fig. 3) at this place.
Plate shape cooling unit 26 is bearing on fixed position 48 by spacer 44.Multiple spacer 44 mutually compartment of terrain, side is arranged, and limits the side of passage 38 according to the view formation of Fig. 3 and Fig. 5, and described spacer 44 is parts of heat expelling installation 32.Whole cooling unit 26 is only bearing in heat insulation spacer 44.Accumulator 18 to be fixed on by the holding device 40 that each is arranged on side, edge by support plate 39 on the fixed position 48 schematically shown in rotor 6.Fixing device 43 is independent of the bearing device 49 of cooling unit 26 by spacer 44.Spacer 44 is made up of thermal-protective material, and for avoiding producing less desirable heat conduction on two fixed positions, it is outside that this high heat conduction occurs in plate shape cooling unit 26, and may cause the damage to variable pitch driver.The end that two holding devices 40 deviate from accumulator 18 at it is placed on fixed position 48 by the track 34 shown in Fig. 3.
Unclamp fixing device 43 to change accumulator 18, thus whole accumulator is replaced together with its housing 27 or groove basin.Once the accumulator 18 be replaced is fixed on two side holding devices 40 together with housing 27, then this device is pressed on fixed position 48 on the bearing device 49 of cooling unit 26.The good contact of heat-conducting property can be formed between " cold " plate 35 of accumulator 18 or its support plate 39 and cooling unit 26 by the reaction force towards accumulator 18 that formed at this.Material as spacer 44 can use the heat insulation and plastics with corresponding mechanical property of flexibility.
Heat insulation fixing device comprises heatpiston, and heatpiston is arranged on above and below the support plate 9 of energy storage module 30, and connects be connected with holding device by immobilising device, such as bolt and nut.
In following accompanying drawing describes, the identical function part of described device is marked with identical reference character.
Fig. 6 illustrates the modification of the bearing device 49 of cooling unit 26, and wherein, spacer 44 comprises elastic element 42, thus makes bearing device 49 be designed to compressive resilience and flexible.The elasticity of spacer 44 and flexible form of implementation achieve better directly thermo-contact between support plate 39 and " cold " plate 35.
Fig. 6 also exemplarily illustrates, which kind of mode be ensure that the contact of the heat conduction between accumulator element 30 and cooling unit 26 by.Thermal conductive contact is included in the hot path 41 between the Heat Conduction Material of the solid of support plate 39 and " cold " plate 35 of cooling unit 26, wherein hot path 41 has mechanical structure, this mechanical structure can moving independent of accumulator regularly, and therefore avoid the mechanical load in heat transfer when accumulator 18 moves relative to its holding device 40.
Fig. 7 shows another kind of form of implementation of the present utility model, wherein replace the spacer 44 of foregoing embodiments and use intermediary element 46, it is connected by fixed block 47 (connect in this as bolt and nut and the be illustrated) housing 27 in side with support plate 39 or accumulator 18, and is connected with cooling unit 26 (at this and " cold " plate 35) with its opposite side.The advantage of this form of implementation is, will not change together with housing 27 by whole accumulator 18.The holding device 40 that housing is arranged by its both sides remains on fixed position 48.Can also be realized by this supporting means now, only change the independent accumulator element 30 (being designated as 30' in the figure 7) of accumulator 18.
List of numerals
1 wind power plant
2 pedestals
3 tower cylinders
4 cabins
5 frames
6 rotors
7 rotor shafts
8 rotor hubs
9 rotor blades
10 rotor blades
11 axis of runner blade
12 axis of runner blade
13 variable pitch drivers
14 variable pitch drivers
15 wind-force
16 generators
17 wind power plant control gear
18 accumulators
19 switches
20 rectifier diodes
21 converter cells
22 actuating motors or motor
23 electrical networks
24 rectifiers
25 inverters
26 cooling units
27 housings
28 cabinets
29 lids
30,30' accumulator element
31 ventilation plants
32 heat expelling installations
34 tracks
35 cold radiation plates
36 Heat sinks
37 peltier-element
38 passages
39 support plates
40 holding devices
41 hot paths
42 elastic elements
43 fix
44 spacer
45 cooling fins
46 intermediary element
47 fixed blocks
48 fixed positions
49 bearing devices
Claims (15)
1. the variable pitch driver for the rotor blade of wind power plant (1), described variable pitch driver comprises motor (22) and the electrochemical or electrostatic accumulator (18 for temporarily powering for motor (22) when motor (22) powers inefficacy or fault, 30), wherein accumulator (30) is equipped with holding device (40), for being fixed on the fixed position (48 of presetting in wind power plant, 34) on, and directly contact with heat conduction with the cooling unit (26) comprising multiple cooling element, for cooling when accumulator (30) charging and discharging and the heat of the accumulator (30) produced when wind power plant (1) runs, and by heat expelling installation (32), heat is discharged, it is characterized in that, cooling unit (26) to have in mechanical aspects independent of accumulator (30) in fixed position (48, 34) the fixing bearing device (49) on, wherein, described bearing device (49) comprises device (46 between cooling unit (26) and fixed position (48), 44, 42), for ensureing the contact of direct heat conduction between accumulator (30) and cooling unit (26).
2. according to variable pitch driver according to claim 1, it is characterized in that, described device is included in the spacer (44) between cooling unit and fixed position (48), and described spacer is arranged spaced reciprocally along the direction side direction of heat expelling installation (32).
3. according to variable pitch driver according to claim 2, it is characterized in that, described spacer (44) comprises flexible and heat insulation material.
4. according to the variable pitch driver described in Claims 2 or 3, it is characterized in that, described spacer (44) comprises elastic element (42).
5. according to variable pitch driver according to claim 1, it is characterized in that, described device comprises intermediary element (46), and this intermediary element is connected with cooling unit (26) enduringly by fixed block (47).
6. according to variable pitch driver according to claim 1, it is characterized in that, accumulator (18) comprises multiple accumulator element (30) be arranged side by side, and wherein each element (30) and cooling unit (26) set up the contact of direct heat conduction.
7. according to variable pitch driver according to claim 1, it is characterized in that, accumulator (18) is surrounded by housing (27) or groove basin, and multiple accumulator is arranged in cabinet (28).
8. according to variable pitch driver according to claim 1, it is characterized in that, accumulator (18) is connected with fixed position (48) by heat insulation fixing device (43).
9. according to variable pitch driver according to claim 1, it is characterized in that, heat expelling installation (32) comprises ventilation plant (31), and described heat is discharged in environment by passage (38) by this ventilation plant.
10. according to variable pitch driver according to claim 1, it is characterized in that, cooling unit (26) comprises the stepped construction of cold radiation plate (35) and Heat sink (36), wherein cold radiation plate (35) contacts with accumulator (18), and Heat sink (36) is the parts of heat expelling installation (32).
11., according to variable pitch driver according to claim 10, is characterized in that, cold radiation plate (35) comprises the electrothermal conversioning element (37) for the formation of temperature difference.
12. according to variable pitch driver according to claim 1, it is characterized in that, contact area between accumulator (18) and cooling unit (26) comprises the baseplate zone of accumulator (18), wherein accumulator (18) is arranged on support plate (39), and this support plate (39) directly contacts with heat conduction with cooling unit (26).
13., according to variable pitch driver according to claim 1, is characterized in that, cooling unit (26) comprises multiple sections, for improving heat trnasfer.
14. 1 kinds of cooling units, it is for being fixed on the electrochemical or electrostatic accumulator (18) on holding device, and this accumulator is for temporarily powering according to the variable pitch driver according to any one of claim 1 to 12.
15. 1 kinds of wind power plants, it comprises and has outstanding and rotor (6) that is rotor blade (9,10) that is that can regulate around axis of runner blade (11,12), and wherein rotor blade (9,10) is by according to the variable pitch driver adjustment one of claim 1 to 12 Suo Shu.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013018982 | 2013-11-13 | ||
| DE102013018982.9 | 2013-11-13 |
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| CN204783473U true CN204783473U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420681324.1U Active CN204783473U (en) | 2013-11-13 | 2014-11-12 | A become oar driver, cooling device and wind power generation equipment for rotor blade of wind power generation equipment |
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| CN (1) | CN204783473U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937481A (en) * | 2016-06-21 | 2016-09-14 | 苏州格远电气有限公司 | Variable pitch control system of variable pitch motor and control method |
| CN107313894A (en) * | 2017-08-30 | 2017-11-03 | 广州市风力新能源科技有限公司 | A kind of miniature wind power generation system |
| CN111152940A (en) * | 2020-01-02 | 2020-05-15 | 中国科学院空间应用工程与技术中心 | Auxiliary heat transfer mechanism, extravehicular load and space station |
-
2014
- 2014-11-12 CN CN201420681324.1U patent/CN204783473U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937481A (en) * | 2016-06-21 | 2016-09-14 | 苏州格远电气有限公司 | Variable pitch control system of variable pitch motor and control method |
| CN107313894A (en) * | 2017-08-30 | 2017-11-03 | 广州市风力新能源科技有限公司 | A kind of miniature wind power generation system |
| CN107313894B (en) * | 2017-08-30 | 2019-05-28 | 广州市风力新能源科技有限公司 | A kind of miniature wind power generation system |
| CN111152940A (en) * | 2020-01-02 | 2020-05-15 | 中国科学院空间应用工程与技术中心 | Auxiliary heat transfer mechanism, extravehicular load and space station |
| CN111152940B (en) * | 2020-01-02 | 2021-05-18 | 中国科学院空间应用工程与技术中心 | Auxiliary heat transfer mechanism, extravehicular load and space station |
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