CN205945296U - Hollow dabber becomes that magnetic structure is two to increase two fall motor and generators - Google Patents
Hollow dabber becomes that magnetic structure is two to increase two fall motor and generators Download PDFInfo
- Publication number
- CN205945296U CN205945296U CN201620178377.0U CN201620178377U CN205945296U CN 205945296 U CN205945296 U CN 205945296U CN 201620178377 U CN201620178377 U CN 201620178377U CN 205945296 U CN205945296 U CN 205945296U
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- end cap
- rotor
- right end
- left end
- central shaft
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Abstract
The utility model provides a does hollow dabber becomes that magnetic structure is two to increase two fall motor and generators realize the natural draft cooling, the inside heat of the rotor assembly of effectively discharging, reduction energy consumption 30 32%, improve life by a wide margin. The utility model discloses a technique core: motor and generator to prior art improve, mainly set about a little as follows, 1. The improvement of rotor assembly: the rotor center axle adopts hollow dabber to be equipped with the louvre, having under rotor core's the condition, the disequilibrium in magnetic field is had a mind to cause by last two wide recesses, two the narrow recesses of being equipped with of rotor core, has improved the inertia of rotor assembly, improves the rotational speed, rotor core's big recess and little groove are equipped with louvre and the inside intercommunication of rotor shaft, 2. The improvement of organism: be certain rule on the organism and be equipped with a plurality of louvres, under the circumstances of guaranteeing tightness magnetism, realize the natural draft heat dissipation.
Description
Technical field
This utility model is related to motor and electromotor, and especially hollow core shaft becomes the magnetic structure double down motor of double increasing and sends out
Motor.
Background technology
It is known that since mankind's utility model motor and electromotor, motor and electromotor are all essentially identical
Structure.
The operation principle of motor is：Just produce electromagnetism after the coil windings energising of motor, consume electric current, produce rotation
Turn magnetic field, this rotating excitation field cutting rotor winding, thus producing faradic current in rotor windings, (rotor windings are that closure is logical
Road), the rotor conductor of current-carrying will produce electromagnetic force under the effect of stator rotating excitation field, thus form electromagnetism on machine shaft turning
Square, drive motor rotates, and motor direction of rotation is identical with rotating excitation field direction.
The operation principle of electromotor is：Induce the electromagnetic induction principle of electric energy using conductor cutting magnetic force lines, will be former dynamic
The mechanical energy of machine is changed into electric energy output.Synchronous generator is made up of stator and rotor two parts, and stator is the armature sending electric power,
Rotor is magnetic pole.Stator is made up of armature core, the coil windings of uniform discharge and support and end cap etc..Rotor is generally by excitation
Winding, iron core and axle composition.
Motor and electromotor are all essentially identical configurations, including body, field frame assembly, rotor assembly, rotor assembly
One end of armature spindle be designed with fan.This structure configuration, caloric value is big in the course of the work, and rotor assembly internal heat is no
Method is excluded, and power loss is big, causes service life short；The setting of fan further increased the energy consumption of rotor assembly.
Content of the invention
The utility model proposes hollow core shaft becomes, magnetic structure is double to increase double down motor and electromotor, realizes gravity-flow ventilation fall
Temperature, can effectively discharge the internal heat of rotor assembly, reducing energy consumption 30-32%, service life is greatly improved.
Technology design of the present utility model：For reaching utility model purpose, the motor and electromotor of prior art is entered
Row improves, and mainly sets about a little as follows：
1. the improvement of rotor assembly：Rotor center axle adopts hollow core shaft, and is provided with louvre；Rotor core is provided with two
Individual wide groove, two narrow grooves, have a mind to cause the imbalance in magnetic field, improve the inertia of rotor assembly, improve rotating speed；Rotor ferrum
It is provided with louvre at the big groove of core and little groove to connect with inside armature spindle；
2. the improvement of body：It is provided with multiple louvres in necessarily rule on body, in the case of guarantee not leakage field, realize
Gravity-flow ventilation is radiated.
On the basis of technology design of the present utility model, the technical solution of the utility model is as described below.
Technical scheme one
Hollow core shaft becomes the magnetic structure double down motor of double increasing, total including body, left end cap, right end cap, field frame assembly, rotor
Become, field frame assembly includes stator core, coil windings, and rotor assembly includes central shaft, rotor core, rotor windings, stator ferrum
Core is fastened around on body, and left end cap, right end cap are fixedly connected on the two ends of body, and the central shaft of rotor assembly passes through bearing
Coaxial support on left end cap, right end cap it is characterised in that：
Central shaft is the hollow core shaft with centre bore, and it is in certain vertically on axle journal that the rotor core of hollow core shaft is installed
It is interval with least three louvres；The circumference of rotor core is provided with two identical wide grooves, on the circumference of rotor core
It is symmetrically arranged with the narrow groove of two identicals with two wide grooves；The bottom of described wide groove and narrow groove is provided with iron core louvre
Connect with central shaft；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft；
It is provided with multiple louvres in necessarily rule on body；Bearing is arranged on the support of left end cap and right end cap from outside to inside
The end face of Kong Zhong, left end cap and right end cap is provided with end-face heat sinking hole.
Technical scheme two
Hollow core shaft becomes the magnetic structure double down electromotor of double increasing, total including body, left end cap, right end cap, field frame assembly, rotor
Become, field frame assembly includes stator core, coil windings, and rotor assembly includes central shaft, rotor core, Exciting Windings for Transverse Differential Protection, stator ferrum
Core is fastened around on body, and left end cap, right end cap are fixedly connected on the two ends of body, and the central shaft of rotor assembly passes through bearing
Coaxial support on left end cap, right end cap it is characterised in that：
Central shaft is the hollow core shaft with centre bore, and it is in certain vertically on axle journal that the rotor core of hollow core shaft is installed
It is interval with least three louvres；The circumference of rotor core is provided with two identical wide grooves, on the circumference of rotor core
It is symmetrically arranged with the narrow groove of two identicals with two wide grooves；The bottom of described wide groove and narrow groove is provided with iron core louvre
Connect with central shaft；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft；It is provided with necessarily rule on body
Multiple louvres；Bearing is arranged in left end cap and the supported hole of right end cap from outside to inside, on the end face of left end cap and right end cap
It is provided with end-face heat sinking hole.
Technical scheme three
Hollow core shaft becomes the magnetic structure double down motor of double increasing, total including body, left end cap, right end cap, field frame assembly, rotor
Become, field frame assembly includes stator core, coil windings, rotor assembly includes central shaft, rotor windings, stator core is around fixing
On body, left end cap, right end cap are fixedly connected on the two ends of body, and the central shaft of rotor assembly is supported on by coaxial bearing
On left end cap, right end cap it is characterised in that：
Central shaft is the hollow core shaft with centre bore, and the installation axle journal of hollow core shaft is provided with certain intervals vertically
At least three louvres；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft；
It is provided with multiple louvres in necessarily rule on body；Bearing is arranged on the support of left end cap and right end cap from outside to inside
The end face of Kong Zhong, left end cap and right end cap is provided with end-face heat sinking hole.
Technical scheme four
Hollow core shaft becomes the magnetic structure double down electromotor of double increasing, total including body, left end cap, right end cap, field frame assembly, rotor
Become, field frame assembly includes stator core, coil windings, rotor assembly includes central shaft, rotor windings, stator core is around fixing
On body, left end cap, right end cap are fixedly connected on the two ends of body, and the central shaft of rotor assembly is supported on by coaxial bearing
On left end cap, right end cap it is characterised in that：
Central shaft is the hollow core shaft with centre bore, and the installation axle journal of hollow core shaft is provided with certain intervals vertically
At least three louvres；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft；
It is provided with multiple louvres in necessarily rule on body；Bearing is arranged on the support of left end cap and right end cap from outside to inside
The end face of Kong Zhong, left end cap and right end cap is provided with end-face heat sinking hole.
Restriction further to technique scheme：In order to ensure not leakage field, and play the purpose of ventilation and heat, described machine
Louvre on body a diameter of 6-10 millimeter.
Restriction further to technique scheme：The outside of described left end cap or right end cap is separately installed an electric wind
Fan.
Restriction further to technique scheme：Described support is aluminum casting, strengthens the effect radiating further.
Beneficial effect：This utility model is directed to the field frame assembly of existing motor and electromotor, body, end cover structure enter
Row improves, and breaks the normal procedure, possesses advantages below：
1. the central shaft of rotor assembly is hollow core shaft, and central shaft and rotor core are provided with louvre, and body also is provided with
Louvre；Thus internal heat is dispersed in the air, gravity-flow ventilation, Temperature fall, improve service life；
2. the circumference of rotor core is provided with two wide grooves and two identical narrow grooves, has a mind to cause the injustice in magnetic field
Weighing apparatus, improves the inertia of rotor assembly, improves rotating speed, takes full advantage of the magnetic field of stator winding generation, forms energy-conservation energy consumption
Inevitable outcome；
3. the central shaft louvre of bearing installation place, end cap louvre, it is ensured that bearing does not generate heat, increase the service life；Make
More than 2 times can be improved with the life-span；
4. body is provided with the louvre of a diameter of 6-10 millimeter, in the case of guarantee not leakage field, reaches the mesh of radiating
's；
5. the outside of left end cap described in or right end cap is separately installed an electric fan, does not connect with the central shaft of rotor assembly
Connect, that is, reach the purpose radiating further, have the rotary resistance not increasing rotor assembly.
Brief description
Fig. 1 is the structure chart of central shaft in this utility model.
Fig. 2 is along A-A sectional view in Fig. 1.
Fig. 3 is the installation diagram of rotor core and central shaft in this utility model.
Fig. 4 is along B-B sectional view in Fig. 3.
Fig. 5 is that hollow core shaft described in the utility model becomes the double front view increasing double down motor of magnetic structure.
Fig. 6 is that hollow core shaft described in the utility model becomes the double top view increasing double down motor of magnetic structure.
Fig. 7 is that described hollow core shaft shown in Fig. 5 becomes the double left view increasing double down motor of magnetic structure.
Fig. 8 is that hollow core shaft described in the utility model becomes the double another kind of structure chart increasing double down motor of magnetic structure.
Specific embodiment
As shown in Figure 1 and Figure 2, be central shaft in this utility model structure chart, central shaft 1 is 2 with centre bore sky
Heart mandrel, the rotor core of hollow core shaft is installed and is provided with least three louvres 6 on axle journal vertically in certain intervals, described scattered
Hot hole 6 extends radially through central shaft 1；Central shaft 1 is provided with left limit step 7, right limit step 5, left limit step 7 and right limit platform
The outside of rank 5 is bearing installation place 4, and bearing installation place 4 is provided with bearing louvre 8；The outside of bearing installation place is that output connects
End 3.
As shown in Figure 1 and Figure 2, described central shaft 1 can also only have an outfan 3, away from the center of outfan 3
Axle 1 other end only has bearing installation place 4.
As shown in Figure 3, Figure 4, be rotor core and central shaft in this utility model installation diagram, rotor core 9 is fixed on
The rotor core of central shaft 1 is installed on axle journal；On the circumference of rotor core, 9 are provided with two identical wide grooves 10, rotor core
Circumference on be symmetrically arranged with the narrow groove 11 of two identicals with two wide grooves；Described wide groove 10 and the bottom of narrow groove 11
It is provided with iron core louvre 12 in certain intervals vertically to connect with central shaft 1.
As shown in Figure 3, Figure 4, the width of narrow groove 11 is the 40-60% of the width of wide groove 10, the depth of narrow groove 11
It is the 40-60% of the depth of wide groove 10；It is the width of wide groove 10 as a example 5 kilowatts of motor or electromotor by setting power
Spend for 12 millimeters, the depth of wide groove 10 is 8 millimeters, the width of narrow groove 11 is 6 millimeters, the depth of narrow groove 11 is 4 millimeters.
As described above, narrow groove 11 and narrow groove 11 size setting be a kind of instantiation, according to motor or send out
The setting power of motor is different, and the size setting of narrow groove 11 and narrow groove 11 can change；As long as ensureing following technology
Key element is as follows：The width of narrow groove 11 is the 40-60% of the width of wide groove 10, and the depth of narrow groove 11 is wide groove
The 40-60% of 10 depth.
By two wide grooves and two identical narrow grooves, have a mind to cause the imbalance in magnetic field, improve rotor assembly
Inertia, improves rotating speed, takes full advantage of the magnetic field of stator winding generation, forms the inevitable outcome of energy-conservation energy consumption.
As shown in Fig. 5, Fig. 6, Fig. 7, it is that in this utility model, hollow core shaft becomes the double one kind increasing double down motor of magnetic structure
Structure chart, including body 15, left end cap 13, right end cap 18, field frame assembly, rotor assembly, described rotor assembly uses figure
Central shaft 1 shown in 1- Fig. 4, rotor core 9, field frame assembly includes stator core 16, coil windings 17, during rotor assembly includes
Heart axle 1, rotor core 9, rotor windings 14, stator core 16 is fastened around on body 15, and left end cap 13, right end cap 18 are solid
Surely it is connected to the two ends of body, the central shaft 1 of rotor assembly passes through bearing 19 coaxial support on left end cap 13, right end cap 18,
It is provided with multiple louvres 16 in necessarily rule on body 15；Bearing 19 is arranged on the supported hole of left end cap and right end cap from outside to inside
In, the end face of left end cap is provided with end-face heat sinking hole 29, and the end face of right end cap also is provided with end-face heat sinking hole.
The louvre of a diameter of 6-10 millimeter of described louvre 16, in the case of guarantee not leakage field, reaches radiating
Purpose.
As shown in figure 8, being that in this utility model, hollow core shaft becomes the double another kind of structure chart increasing double down motor of magnetic structure,
It is with the motor difference shown in Fig. 5-Fig. 7：The outside of described right end cap is separately installed to have an electric fan 21 it is ensured that more filling
The radiating dividing.
As shown in figure 8, electric fan can also be installed to the outside of left end cap, in this case, in as shown in Figure 1 and Figure 2
Heart axle only one of which outfan.
In this utility model, hollow core shaft becomes the double improved structure increasing double down electromotor of magnetic structure and becomes magnetic knot with hollow core shaft
The improved structure of the structure double down motor of double increasing is identical, and remainder is not described here in detail.
Hollow core shaft of the present utility model becomes the magnetic structure double down electromotor of double increasing, including body, left end cap, right end cap, determines
Sub- assembly, rotor assembly, field frame assembly includes stator core, coil windings, and rotor assembly includes central shaft, rotor core, encourages
Magnetic winding, stator core is fastened around on body, and left end cap, right end cap are fixedly connected on the two ends of body, rotor assembly
Central shaft is supported on left end cap by coaxial bearing, on right end cap, body is in necessarily rule be provided with multiple louvres；Bearing from
It is arranged on outside to inside in left end cap and the supported hole of right end cap, the end face of left end cap and right end cap is provided with end-face heat sinking hole；Adopt
It is the central shaft shown in Fig. 1-Fig. 4, rotor core.
Have, on central shaft shown in Fig. 1-Fig. 2 in this utility model, body, the left end that the structure of louvre and body are connected
The structure that the end face of lid and right end cap is provided with end-face heat sinking hole is equally applicable to motor or the electromotor of iron-core-free.
Another kind of hollow core shaft in this utility model becomes the magnetic structure double down motor of double increasing, including body, left end cap, the right side
End cap, field frame assembly, rotor assembly, field frame assembly includes stator core, coil windings, and rotor assembly includes central shaft, rotor
Winding, stator core is fastened around on body, and left end cap, right end cap are fixedly connected on the two ends of body, in rotor assembly
Heart axle is supported on left end cap by coaxial bearing, on right end cap, body is in necessarily rule be provided with multiple louvres；Bearing is from outer
It is inwardly mounted in left end cap and the supported hole of right end cap, the end face of left end cap and right end cap is provided with end-face heat sinking hole；Using
Be the central shaft shown in Fig. 1-Fig. 2, central shaft is the hollow core shaft with centre bore, along axle on the installation axle journal of hollow core shaft
To being provided with least three louvres in certain intervals；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft.
Another kind of hollow core shaft in this utility model becomes the magnetic structure double down electromotor of double increasing, including body, left end cap, the right side
End cap, field frame assembly, rotor assembly, field frame assembly includes stator core, coil windings, and rotor assembly includes central shaft, rotor
Winding, stator core is fastened around on body, and left end cap, right end cap are fixedly connected on the two ends of body, in rotor assembly
Heart axle is supported on left end cap by coaxial bearing, on right end cap, body is in necessarily rule be provided with multiple louvres；Bearing is from outer
It is inwardly mounted in left end cap and the supported hole of right end cap, the end face of left end cap and right end cap is provided with end-face heat sinking hole；Using
Be the central shaft shown in Fig. 1-Fig. 2, central shaft is the hollow core shaft with centre bore, along axle on the installation axle journal of hollow core shaft
To being provided with least three louvres in certain intervals；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft.
Described rotor windings can be substituted with permanent magnet.
The outside of the left end cap in the motor of above-mentioned iron-core-free or electromotor or right end cap is separately installed an electric fan.
As long as motor and electromotor adopt the central shaft shown in Fig. 1-Fig. 4, rotor core (according to motor and electromotor
Whether type selecting adopts), body has louvre, the left end cap being connected with body and the end face of right end cap are provided with end face and dissipate
Hot hole, is all protection domain of the present utility model.
Claims (10)
1. hollow core shaft becomes the magnetic structure double down motor of double increasing, total including body, left end cap, right end cap, field frame assembly, rotor
Become, field frame assembly includes stator core, coil windings, and rotor assembly includes central shaft, rotor core, rotor windings, stator ferrum
Core is fastened around on body, and left end cap, right end cap are fixedly connected on the two ends of body, and the central shaft of rotor assembly passes through bearing
Coaxial support on left end cap, right end cap it is characterised in that：
Central shaft is the hollow core shaft with centre bore, and it is in certain intervals vertically that the rotor core of hollow core shaft is installed on axle journal
It is provided with least three louvres；The circumference of rotor core is provided with two identical wide grooves, with two on the circumference of rotor core
Individual wide groove is symmetrically arranged with the narrow groove of two identicals；The bottom of described wide groove and narrow groove be provided with iron core louvre with
Heart axle connects；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft；
It is provided with multiple louvres in necessarily rule on body；Bearing is arranged on the supported hole of left end cap and right end cap from outside to inside
In, the end face of left end cap and right end cap is provided with end-face heat sinking hole.
2. hollow core shaft according to claim 1 become magnetic structure double increase double down motor it is characterised in that：On described body
Louvre a diameter of 6-10 millimeter.
3. hollow core shaft according to claim 1 and 2 become magnetic structure double increase double down motor it is characterised in that：A described left side
The outside of end cap or right end cap is separately installed an electric fan.
4. hollow core shaft becomes the magnetic structure double down electromotor of double increasing, total including body, left end cap, right end cap, field frame assembly, rotor
Become, field frame assembly includes stator core, coil windings, and rotor assembly includes central shaft, rotor core, Exciting Windings for Transverse Differential Protection, stator ferrum
Core is fastened around on body, and left end cap, right end cap are fixedly connected on the two ends of body, and the central shaft of rotor assembly passes through bearing
Coaxial support on left end cap, right end cap it is characterised in that：
Central shaft is the hollow core shaft with centre bore, and it is in certain intervals vertically that the rotor core of hollow core shaft is installed on axle journal
It is provided with least three louvres；The circumference of rotor core is provided with two identical wide grooves, with two on the circumference of rotor core
Individual wide groove is symmetrically arranged with the narrow groove of two identicals；The bottom of described wide groove and narrow groove be provided with iron core louvre with
Heart axle connects；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft；
It is provided with multiple louvres in necessarily rule on body；Bearing is arranged on the supported hole of left end cap and right end cap from outside to inside
In, the end face of left end cap and right end cap is provided with end-face heat sinking hole.
5. hollow core shaft according to claim 4 become magnetic structure double increase double down electromotor it is characterised in that：On described body
Louvre a diameter of 6-10 millimeter.
6. hollow core shaft according to claim 4 or 5 become magnetic structure double increase double down electromotor it is characterised in that：A described left side
The outside of end cap or right end cap is separately installed an electric fan.
7. hollow core shaft becomes the magnetic structure double down motor of double increasing, total including body, left end cap, right end cap, field frame assembly, rotor
Become, field frame assembly includes stator core, coil windings, rotor assembly includes central shaft, rotor windings, stator core is around solid
It is scheduled on body, left end cap, right end cap are fixedly connected on the two ends of body, the central shaft of rotor assembly is supported by coaxial bearing
On left end cap, right end cap it is characterised in that：
Central shaft is the hollow core shaft with centre bore, and the installation axle journal of hollow core shaft is provided with least in certain intervals vertically
Three louvres；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft；
It is provided with multiple louvres in necessarily rule on body；Bearing is arranged on the supported hole of left end cap and right end cap from outside to inside
In, the end face of left end cap and right end cap is provided with end-face heat sinking hole.
8. hollow core shaft according to claim 7 become magnetic structure double increase double down motor it is characterised in that：On described body
Louvre a diameter of 6-10 millimeter.
9. hollow core shaft becomes the magnetic structure double down electromotor of double increasing, total including body, left end cap, right end cap, field frame assembly, rotor
Become, field frame assembly includes stator core, coil windings, rotor assembly includes central shaft, rotor windings, stator core is around fixing
On body, left end cap, right end cap are fixedly connected on the two ends of body, and the central shaft of rotor assembly is supported on by coaxial bearing
On left end cap, right end cap it is characterised in that：
Central shaft is the hollow core shaft with centre bore, and the installation axle journal of hollow core shaft is provided with least in certain intervals vertically
Three louvres；It is provided with bearing louvre corresponding to bearings at both ends installation place on central shaft；
It is provided with multiple louvres in necessarily rule on body；Bearing is arranged on the supported hole of left end cap and right end cap from outside to inside
In, the end face of left end cap and right end cap is provided with end-face heat sinking hole.
10. hollow core shaft according to claim 9 become magnetic structure double increase double down electromotor it is characterised in that：Described body
On louvre a diameter of 6-10 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620178377.0U CN205945296U (en) | 2016-03-09 | 2016-03-09 | Hollow dabber becomes that magnetic structure is two to increase two fall motor and generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620178377.0U CN205945296U (en) | 2016-03-09 | 2016-03-09 | Hollow dabber becomes that magnetic structure is two to increase two fall motor and generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205945296U true CN205945296U (en) | 2017-02-08 |
Family
ID=57934384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620178377.0U Withdrawn - After Issue CN205945296U (en) | 2016-03-09 | 2016-03-09 | Hollow dabber becomes that magnetic structure is two to increase two fall motor and generators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205945296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553149A (en) * | 2016-03-09 | 2016-05-04 | 胡改清 | Dual-increase and dual-decrease motor and generator with hollow mandrel variable-magnetism structure |
| CN109139396A (en) * | 2018-08-07 | 2019-01-04 | 北京金风科创风电设备有限公司 | Cooling system and cooling method of wind generating set and wind driven generator |
-
2016
- 2016-03-09 CN CN201620178377.0U patent/CN205945296U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553149A (en) * | 2016-03-09 | 2016-05-04 | 胡改清 | Dual-increase and dual-decrease motor and generator with hollow mandrel variable-magnetism structure |
| CN105553149B (en) * | 2016-03-09 | 2018-11-02 | 胡改清 | Hollow core shaft becomes the double down motor of the double increasings of magnetic structure and generator |
| CN109139396A (en) * | 2018-08-07 | 2019-01-04 | 北京金风科创风电设备有限公司 | Cooling system and cooling method of wind generating set and wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20181102 |