CN2078503U - Nd-fe-b permanent-magnet d.c. motor - Google Patents
Nd-fe-b permanent-magnet d.c. motor Download PDFInfo
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- CN2078503U CN2078503U CN90216785U CN90216785U CN2078503U CN 2078503 U CN2078503 U CN 2078503U CN 90216785 U CN90216785 U CN 90216785U CN 90216785 U CN90216785 U CN 90216785U CN 2078503 U CN2078503 U CN 2078503U
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- motor
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- winding
- iron core
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a Nd-Fe-B DC motor which forms a tile shape and made of Nd-Fe-B permanent magnetic materials of 27-31MGOe, wherein, the Nd-Fe-B permanent magnetic materials are stuck on the inner surface of a magnetic pole iron core to form a magnetic pole and provide a magnetic field for the motor so as to replace an exciting winding of a general electric excitation motor, and thus an excitation control cabinet is omitted. The utility model is characterized in that a Nd-Fe-B magnetic steel (6) is connected with a magnetic pole iron core (7), and a commutating pole winding (3) is connected with a commutating pole iron core (4), wherein, the magnetic pole iron core (7) and the commutating pole iron core (4) are respectively fastened on a machine base (1) by bolts (5), (8); an armature (2) and the commutating pole winding (3) are connected by a connecting wire (11) of an electric brush (12), and two wires led out from the armature (2) and the commutating pole winding (3) are respectively connected to a binding post (10).
Description
The utility model Nd-Fe-B permanent magnetic DC motor belongs to the DC motor category in the power motor class.
AEG company 4 serial DC motor are arranged at present, the GN series DC motor of BBC company, the IGG of Siemens Company
5Series DC motor, and Chinese Z4 and Z2 series DC motor, the common feature of these DC motor:
1. all be electric excitatory motor;
2. all must have a field winding control cubicle;
3. these motor lead-out wires all are 6;
4. overload magnification all is 1.5 times.
Above motor just is being widely used in each practical field.Weak point is to establish a field winding cabinet in addition, and lead-out wire is too many, and overload magnification is lower.
Number of patent application is 86200243, and name is called the neodymium iron boron micromachine, and its architectural feature is to distribute with 6 Nd-Fe-Bo permanent magnet materials to be bonded in the plane, provides magnetic field to motor; Number of patent application is 89201082.7, and it is to be bonded at inboard wall of base with 6～12 pairs of ndfeb magnetic poles that name is called its architectural feature of electric bicycle neodymium iron boron brushless motor, provides magnetic field to motor.More than two kinds with the Nd-Fe-B magnet steel be that the common feature of the DC motor of raw material is that volume is little, in light weight, little power consumption, noise be little.
Above-described two kinds to provide the weak point of the DC motor in magnetic field with Nd-Fe-B magnet steel to motor be higher for voltage, and the motor that power is bigger is inapplicable.
The purpose of design of the utility model Nd-Fe-B permanent magnetic DC motor is a weak point of having avoided existing direct current machine, and provide a kind of motor lead-out wire without field winding only have 2, overload magnification be 2 times, omit field winding utility model product control cubicle, that power is bigger.
The goal of the invention of the utility model neodymium iron boron DC motor can reach by following measure: a kind of by support (1), armature (2), commutating-pole winding (3), commutating pole iron core (4), bolt (5), Nd-Fe-B magnet steel (6), pole core (7), bolt (8), outer air blast (9) binding post (10), tie (11), brush (12), exhaust vent (13), footing (14), fresh air inlet (15), end caps (16) etc. form, it is characterized in that one since Nd-Fe-B magnet steel (6) connect with pole core (7), commutating-pole winding (3) connects with commutating pole iron core (4), pole core (7) and commutating pole iron core (4) use bolt (5) and (8) to be fastened on the support (1) respectively, armature (2) commutation winding (3) with brush (12) tie (11) connection and draw 2 lines and be connected on product structure on the binding post (10) respectively; The goal of the invention of above-described ZYN series Nd-Fe-B permanent magnetic DC motor can also reach by following measure: Nd-Fe-B magnet steel (6) is bonded in the inner surface of pole core (7), and pole core (7) is fastened on the support (1); The quantity of power-line terminal (10) is 2; Support (1) is the cylindrical integral support, and end cap (16) is a disc, fresh air inlet (15), and exhaust vent (13), footing (14) are all on support (1).
The drawing of accompanying drawing is described as follows:
Fig. 1 is a general assembly drawing, and among Fig. 1: piece number (1) is represented support, piece number (2) is represented armature, piece number (3) is represented commutating-pole winding, piece number (4) is represented compole core, piece number (5) is represented bolt, piece number (6) is represented Nd-Fe-B magnet steel, piece number (7) is represented pole core, piece number (8) is represented bolt, the outer air blast of piece number (9) representative, piece number (10) is represented binding post, piece number (11) is represented tie, piece number (12) is represented brush, piece number (13) is represented exhaust vent, piece number (14) is represented footing, piece number (15) is represented fresh air inlet, piece number (16) is represented end cap.
Fig. 2 is internal structure on line figure, and piece number 1～12 is identical with piece number among Fig. 1, and L represents height of center.
Fig. 3 is a circuit diagram, B among Fig. 3
1-B
2Represent commutating-pole winding (3), A
1-A
2Represent armature (2), the magnetic pole that N, S representative is made up of Nd-Fe-B magnet steel (6) and pole core (7).
The utility model is described in further detail below in conjunction with embodiment:
1. because Nd-Fe-Bo permanent magnet material has the remanent magnetism height, coercive force is big, magnetic energy product is high, has improved electric efficiency and reliability, And and dwindled motor volume, thereby dwindled the height of center (L) of motor; In force, ZYN series Nd-Fe-B permanent magnetic DC motor has 171 kinds of different specifications, 12 height of centers, 2 kinds of voltages, 31 kinds of capacitance grades, 7 kinds of rotating speeds.
A.12 individual height of center: ZYN-90; ZYN-100; ZYN-112; ZYN-132; ZYN-160; ZYN-180; ZYN-200; ZYN-225; ZYN-250; ZYN-280; ZYN-315; ZYN-355;
B.2 plant voltage: 160 volts; 440 volts;
C.31 plant capacitance grade (kilowatt): 0.55; 0.75; 1.10; 1.5; 2.2; 3.0; 4.0; 5.5; 7.5; 11; 15; 18.5; 22; 30; 37; 45; 55; 75; 90; 110; 132; 160; 185; 200; 220; 250; 280; 315; 355; 400; 450;
D.7 plant rotating speed (rev/min): 400; 500; 600; 750; 1000; 1500; 3000;
2. Nd-Fe-Bo permanent magnet material replaces the field winding of DC motor to provide magnetic field to motor, does not need exciting curent, saves 1 excitatory control cubicle.The Nd-Fe-B permanent magnetic magnet steel is a watt shape piece, is generally 4～7 millimeters thick (the concrete thickness of magnet steel is according to motor center Gao Erding), and magnetic pole is 2～6 utmost points, the big value of the big motor choosing of capacity.
3. pole core is cylinder iron cast, process through inside and outside arc, inner arc and Nd-Fe-B magnet steel are bonding, outer arc and support Bolt Connection, because as its magnetic field of magnetic source alternation not, therefore can not produce loss in pole core with Nd-Fe-Bo permanent magnet material, because the magnetic in the pole core is close not high (generally 13000～15000GS), it is fully passable adopting the cast iron pole core, and this pole core stock utilization can reach more than 90%.
4. commutation winding (winding does not commutate) is set:because the capacity of ZYN serial motors is bigger in general magneto, 0.55～450 kilowatt of from, and voltage is higher, 160 volts and, 440 volts (most of motor is 440 volts), because the DC motor of the suitable static power converter power supply of motor, so, the above reason all can make motor produce spark, make the commutation difficulty, motor can't move, and therefore increases the commutation winding, arc control, make motor that good commutation ability be arranged, guarantee that motor normally moves.
5. the lead-out wire of motor is 2: because Nd-Fe-B magnet steel has replaced field winding, simultaneously because Nd-Fe-B magnet steel is used in the magnetic pole inner arc, can alleviate the impact of armature reaction to magnetic field, because the magnetic potential that magnet steel provides is decided by the working point, when armature reaction slackens main field because the decline of working point, thereby increased magnet steel to the magnetic potential that motor provides, guaranteed the stable operation of motor.This point is that general electric excitatory motor can't be compared, thereby does not need to be provided with series excitation winding and compensation winding at motor internal.Motor internal has only armature winding and each end of two windings of commutation winding to connect at motor internal, and other 2 ends are drawn outside the motor, connect 2 end points of power supply as motor.
6. support (1) is columniform overall structure, and end cap (16) is the disk type.The profile of this serial motors is elongated shape, and is easy to process.Footing (14) is welded on the support (1), also can change the installing hole distance as requested.
7. the fresh air inlet of motor (15) is at the shaft extension end, and exhaust vent (13) is at commutator end, and all on support (1), brush (12) is checked, changed to the reliable in structure of motor conveniently like this.
8. magnet steel (6) adopts 27～31,000,000 high Nd-Fe-Bo permanent magnet materials difficult to understand, make a watt shape, thickness is 4～7 millimeters fritter, every fritter weighs 10～100 grams, be bonded at pole core (7) inner surface and form magnetic pole, provide magnetic field to replace the field winding of general electric excitatory motor to motor, pole core (7) adopts cast iron materials, inside and outside arc processes, and makes magnet steel (6) and support (1) join the conducting magnetic circuit together by it.
9. commutating-pole winding (3) is formed commutating pole on compole core (4), and is fastening with bolt (5) with support (1) again.The main effect of commutating pole is to eliminate commutation spark.
10. binding post (10) is formed the loop by tie (11), brush (12) with motor (2), commutating-pole winding (3), and external cabling has only 2.The magnetic potential that Nd-Fe-B magnet steel provides changes with the magnet steel disturbances of power, when armature reaction slackens magnetic field, the magnet steel working point is descended, and magnet steel increases to the magnetic potential that motor provides, and offsets the influence of armature reaction, has guaranteed the normal operation of motor.This point is that electric excitatory motor can't be compared, thereby does not need to be provided with series excitation winding and compensation winding.2 lines are drawn in armature winding and the inner connection of commutation winding, connect power supply, because binding post is 2, can not damage electrode because of the wiring error, and control turns to simply, as long as the positive-negative polarity of 2 lines is changed, can change turning to of motor.
The utility model has following advantage compared to existing technology:
1. the average efficiency of motor improves 7% than Z serial motors, compares Z
2Serial motors improves 8%, than Siemens Company IGG
54 series of the GN series of series, Switzerland BBC company, German AEG company of connection group are average to improve 7%.
1000000 kilowatts of of needs of Example:annual calculate by DC motor, and efficient improves 7%, and motor is worked and calculated in 16 hours average every day, can economize on electricity in 1 year:1,000,000 kilowatt of *, 7% * 365=4.088,50,000 kilowatts of hundred million degree.Be equivalent to build the generating set of one.
2. motor copper consumption average specific Z serial motors reduces 30%, compares Z
2Serial motors reduces 40%.
Example:need 1,000,000 kilowatt of by annual direct current machine, and every kilowatt of and and 1.17 kilograms of copper of, can save copper in 1 year:
1,000,000 kilowatt of * 1.17 kilogram/ kilowatt * 30%=35.1. of Ten thousand kilograms=351 tons of
3. dynamo steel sheet average specific Z serial motors reduces 10%.
1,000,000 kilowatt of Example:annual direct current machine needs, every kilowatt of 2.13 kilograms of silicon steel sheets of, but 1 year save silicon steel disc:
1,000,000 kilowatt of * 2.13 kilogram/ kilowatt * 10%=2.13. of Ten thousand kilograms=213 tons of
4. motor can promote the production of NdFeB material.
Example:need 1,000,000 kilowatt of by annual direct current machine, and every kilowatt of is with 0.2 kilogram of calculating, 1 year available Nd-Fe-Bo permanent magnet material:
1,000,000 kilowatt of *, 0.2 kilogram/ kilowatt=200,000 kilogram=200 tons.
Per kilogram can be created value in 1 year by 350 yuan of calculating:
350 yuan/kilogram * 200,000 kilograms=2,000 ten thousand yuan.
The utility model Nd-Fe-B permanent magnetic DC motor is in trial-manufacturing process, representational model machine ZYN-160-3 motor is developed, 30 kilowatts of this capacity motor is, 440 volts of voltages, electric current 74.5 peaces, rotating speed is 1500 rev/mins, draws following data through comprehensive and systematic test, and these data are and Z4-160-3, Z
2-81 two kinds of same capacity, with the comparison of rotating speed motor:
From above three kinds of same capacity (30 kilowatts), the contrast of the motor of same rotating speed (1500 rev/mins) is found out:
1.ZYN-160-3 electric efficiency compares Z
4-160-3 motor improves 6%, compares Z
2-81 motors improve 4.7%.
2.ZYN-160-3 electric machine temperature rise compares Z
4-160-3 motor and Z
2-81 motors are all low.
3.ZYN-160-3 the overload magnification of motor compares Z
4-160-3 motor and Z
2-81 motors improve 33%.
4.ZYN-160-3 the motor copper consumption is Z
456.5% of-160-3 motor is Z
252.1% of-81 motors.
5.ZYN-160-3 the dynamo steel sheet amount is Z
490% of-160-3 motor is Z
291.5% of-81 motors.
6.ZYN-160-3 motor NdFeB material consumption is 5.7 kilograms, and Z
4-160-3 and Z
2The consumption of-81 motors then is zero.
As can be seen, increased NdFeB material newly, reduced the other materials of original motor, as copper, iron, silicon steel sheet etc., through comparing, cost is all approximate.
Claims (6)
1, a kind of by support (1), armature (2), commutating-pole winding (3), commutating pole iron core (4), bolt (5), Nd-Fe-B magnet steel (6), pole core (7), bolt (8), outer air blast (9), binding post (10), tie (11), brush (12), exhaust vent (13), footing (14), fresh air inlet (15), the DC motor that end cap (16) etc. are formed, it is characterized in that one is connected with pole core (7) by Nd-Fe-B magnet steel (6), commutating-pole winding (3) connects with commutating pole iron core (4), pole core (7) and commutating pole iron core (4) are used bolt (5) and (8) to be fastened on that armature (2) commutating-pole winding (3) on the support (1) connects with brush (12) tie (11) respectively and are drawn 2 lines and be connected on structure on the binding post (10) respectively.
2, Nd-Fe-B permanent magnetic DC motor according to claim 1 is characterized in that Nd-Fe-B magnet steel (6) is bonded in the inner surface of pole core (7), and pole core (7) is fastened on the support (1).
3, Nd-Fe-B permanent magnetic DC motor according to claim 1 is characterized in that commutating-pole winding (3) directly on commutating pole iron core (4), and commutating pole iron core (4) is fastened on the support (1) by bolt (5).
4, Nd-Fe-B permanent magnetic DC motor according to claim 1, the quantity that it is characterized in that power-line terminal (10) is 2.
5, Nd-Fe-B permanent magnetic DC motor according to claim 1 is characterized in that support (1) is the cylindrical integral support, and end cap (16) is a disc.
6, Nd-Fe-B permanent magnetic DC motor according to claim 1 is characterized in that fresh air inlet (15), exhaust vent (13), footing (14) are on support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90216785U CN2078503U (en) | 1990-07-21 | 1990-07-21 | Nd-fe-b permanent-magnet d.c. motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90216785U CN2078503U (en) | 1990-07-21 | 1990-07-21 | Nd-fe-b permanent-magnet d.c. motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2078503U true CN2078503U (en) | 1991-06-05 |
Family
ID=4895890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90216785U Granted CN2078503U (en) | 1990-07-21 | 1990-07-21 | Nd-fe-b permanent-magnet d.c. motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2078503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008077286A1 (en) * | 2006-12-27 | 2008-07-03 | Guangdong Zhaoqing L & V Co., Ltd. | Nd-fe-b dc motor |
| CN105958787A (en) * | 2016-01-28 | 2016-09-21 | 冯西川 | Radial superposition magnetic circuit permanent magnet direct current motor |
-
1990
- 1990-07-21 CN CN90216785U patent/CN2078503U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008077286A1 (en) * | 2006-12-27 | 2008-07-03 | Guangdong Zhaoqing L & V Co., Ltd. | Nd-fe-b dc motor |
| CN101529700B (en) * | 2006-12-27 | 2011-02-16 | 广东肇庆爱龙威机电有限公司 | Nd-fe-b DC motor |
| CN105958787A (en) * | 2016-01-28 | 2016-09-21 | 冯西川 | Radial superposition magnetic circuit permanent magnet direct current motor |
| CN105958787B (en) * | 2016-01-28 | 2019-08-27 | 冯西川 | Radial stacking magnetic circuit permanent magnet direct current motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |